diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 178a5934e..556cd1568 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -716,6 +716,7 @@ set( NOT_COMPILED_SOURCE_FILES zcc-parse.c zcc-parse.h common/platform/win32/zutil.natvis + common/rendering/vulkan/thirdparty/vk_mem_alloc/vk_mem_alloc.natvis ) set( VM_JIT_SOURCES diff --git a/src/common/rendering/vulkan/thirdparty/vk_mem_alloc/vk_mem_alloc.h b/src/common/rendering/vulkan/thirdparty/vk_mem_alloc/vk_mem_alloc.h index 30f2494a7..fd4472286 100644 --- a/src/common/rendering/vulkan/thirdparty/vk_mem_alloc/vk_mem_alloc.h +++ b/src/common/rendering/vulkan/thirdparty/vk_mem_alloc/vk_mem_alloc.h @@ -1,5 +1,5 @@ // -// Copyright (c) 2017-2018 Advanced Micro Devices, Inc. All rights reserved. +// Copyright (c) 2017-2021 Advanced Micro Devices, Inc. All rights reserved. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal @@ -23,15 +23,11 @@ #ifndef AMD_VULKAN_MEMORY_ALLOCATOR_H #define AMD_VULKAN_MEMORY_ALLOCATOR_H -#ifdef __cplusplus -extern "C" { -#endif - /** \mainpage Vulkan Memory Allocator -Version 2.0.0 (2018-03-19) +Version 3.0.0-development (2021-06-21) -Copyright (c) 2017-2018 Advanced Micro Devices, Inc. All rights reserved. \n +Copyright (c) 2017-2021 Advanced Micro Devices, Inc. All rights reserved. \n License: MIT Documentation of all members: vk_mem_alloc.h @@ -48,14 +44,29 @@ Documentation of all members: vk_mem_alloc.h - [Required and preferred flags](@ref choosing_memory_type_required_preferred_flags) - [Explicit memory types](@ref choosing_memory_type_explicit_memory_types) - [Custom memory pools](@ref choosing_memory_type_custom_memory_pools) + - [Dedicated allocations](@ref choosing_memory_type_dedicated_allocations) - \subpage memory_mapping - [Mapping functions](@ref memory_mapping_mapping_functions) - [Persistently mapped memory](@ref memory_mapping_persistently_mapped_memory) - - [Cache control](@ref memory_mapping_cache_control) + - [Cache flush and invalidate](@ref memory_mapping_cache_control) - [Finding out if memory is mappable](@ref memory_mapping_finding_if_memory_mappable) + - \subpage staying_within_budget + - [Querying for budget](@ref staying_within_budget_querying_for_budget) + - [Controlling memory usage](@ref staying_within_budget_controlling_memory_usage) + - \subpage resource_aliasing - \subpage custom_memory_pools - [Choosing memory type index](@ref custom_memory_pools_MemTypeIndex) + - [Linear allocation algorithm](@ref linear_algorithm) + - [Free-at-once](@ref linear_algorithm_free_at_once) + - [Stack](@ref linear_algorithm_stack) + - [Double stack](@ref linear_algorithm_double_stack) + - [Ring buffer](@ref linear_algorithm_ring_buffer) + - [Buddy allocation algorithm](@ref buddy_algorithm) - \subpage defragmentation + - [Defragmenting CPU memory](@ref defragmentation_cpu) + - [Defragmenting GPU memory](@ref defragmentation_gpu) + - [Additional notes](@ref defragmentation_additional_notes) + - [Writing custom allocation algorithm](@ref defragmentation_custom_algorithm) - \subpage lost_allocations - \subpage statistics - [Numeric statistics](@ref statistics_numeric_statistics) @@ -63,7 +74,14 @@ Documentation of all members: vk_mem_alloc.h - \subpage allocation_annotation - [Allocation user data](@ref allocation_user_data) - [Allocation names](@ref allocation_names) + - \subpage debugging_memory_usage + - [Memory initialization](@ref debugging_memory_usage_initialization) + - [Margins](@ref debugging_memory_usage_margins) + - [Corruption detection](@ref debugging_memory_usage_corruption_detection) + - \subpage record_and_replay + - \subpage opengl_interop - \subpage usage_patterns + - [Common mistakes](@ref usage_patterns_common_mistakes) - [Simple patterns](@ref usage_patterns_simple) - [Advanced patterns](@ref usage_patterns_advanced) - \subpage configuration @@ -72,8 +90,11 @@ Documentation of all members: vk_mem_alloc.h - [Device memory allocation callbacks](@ref allocation_callbacks) - [Device heap memory limit](@ref heap_memory_limit) - \subpage vk_khr_dedicated_allocation + - \subpage enabling_buffer_device_address + - \subpage vk_amd_device_coherent_memory - \subpage general_considerations - [Thread safety](@ref general_considerations_thread_safety) + - [Validation layer warnings](@ref general_considerations_validation_layer_warnings) - [Allocation algorithm](@ref general_considerations_allocation_algorithm) - [Features not supported](@ref general_considerations_features_not_supported) @@ -81,1002 +102,186 @@ Documentation of all members: vk_mem_alloc.h - [Product page on GPUOpen](https://gpuopen.com/gaming-product/vulkan-memory-allocator/) - [Source repository on GitHub](https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator) - - - - -\page quick_start Quick start - -\section quick_start_project_setup Project setup - -Vulkan Memory Allocator comes in form of a single header file. -You don't need to build it as a separate library project. -You can add this file directly to your project and submit it to code repository next to your other source files. - -"Single header" doesn't mean that everything is contained in C/C++ declarations, -like it tends to be in case of inline functions or C++ templates. -It means that implementation is bundled with interface in a single file and needs to be extracted using preprocessor macro. -If you don't do it properly, you will get linker errors. - -To do it properly: - --# Include "vk_mem_alloc.h" file in each CPP file where you want to use the library. - This includes declarations of all members of the library. --# In exacly one CPP file define following macro before this include. - It enables also internal definitions. - -\code -#define VMA_IMPLEMENTATION -#include "vk_mem_alloc.h" -\endcode - -It may be a good idea to create dedicated CPP file just for this purpose. - -\section quick_start_initialization Initialization - -At program startup: - --# Initialize Vulkan to have `VkPhysicalDevice` and `VkDevice` object. --# Fill VmaAllocatorCreateInfo structure and create #VmaAllocator object by - calling vmaCreateAllocator(). - -\code -VmaAllocatorCreateInfo allocatorInfo = {}; -allocatorInfo.physicalDevice = physicalDevice; -allocatorInfo.device = device; - -VmaAllocator allocator; -vmaCreateAllocator(&allocatorInfo, &allocator); -\endcode - -\section quick_start_resource_allocation Resource allocation - -When you want to create a buffer or image: - --# Fill `VkBufferCreateInfo` / `VkImageCreateInfo` structure. --# Fill VmaAllocationCreateInfo structure. --# Call vmaCreateBuffer() / vmaCreateImage() to get `VkBuffer`/`VkImage` with memory - already allocated and bound to it. - -\code -VkBufferCreateInfo bufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; -bufferInfo.size = 65536; -bufferInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; - -VmaAllocationCreateInfo allocInfo = {}; -allocInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; - -VkBuffer buffer; -VmaAllocation allocation; -vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr); -\endcode - -Don't forget to destroy your objects when no longer needed: - -\code -vmaDestroyBuffer(allocator, buffer, allocation); -vmaDestroyAllocator(allocator); -\endcode - - -\page choosing_memory_type Choosing memory type - -Physical devices in Vulkan support various combinations of memory heaps and -types. Help with choosing correct and optimal memory type for your specific -resource is one of the key features of this library. You can use it by filling -appropriate members of VmaAllocationCreateInfo structure, as described below. -You can also combine multiple methods. - --# If you just want to find memory type index that meets your requirements, you - can use function vmaFindMemoryTypeIndex(). --# If you want to allocate a region of device memory without association with any - specific image or buffer, you can use function vmaAllocateMemory(). Usage of - this function is not recommended and usually not needed. --# If you already have a buffer or an image created, you want to allocate memory - for it and then you will bind it yourself, you can use function - vmaAllocateMemoryForBuffer(), vmaAllocateMemoryForImage(). - For binding you should use functions: vmaBindBufferMemory(), vmaBindImageMemory(). --# If you want to create a buffer or an image, allocate memory for it and bind - them together, all in one call, you can use function vmaCreateBuffer(), - vmaCreateImage(). This is the recommended way to use this library. - -When using 3. or 4., the library internally queries Vulkan for memory types -supported for that buffer or image (function `vkGetBufferMemoryRequirements()`) -and uses only one of these types. - -If no memory type can be found that meets all the requirements, these functions -return `VK_ERROR_FEATURE_NOT_PRESENT`. - -You can leave VmaAllocationCreateInfo structure completely filled with zeros. -It means no requirements are specified for memory type. -It is valid, although not very useful. - -\section choosing_memory_type_usage Usage - -The easiest way to specify memory requirements is to fill member -VmaAllocationCreateInfo::usage using one of the values of enum #VmaMemoryUsage. -It defines high level, common usage types. -For more details, see description of this enum. - -For example, if you want to create a uniform buffer that will be filled using -transfer only once or infrequently and used for rendering every frame, you can -do it using following code: - -\code -VkBufferCreateInfo bufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; -bufferInfo.size = 65536; -bufferInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; - -VmaAllocationCreateInfo allocInfo = {}; -allocInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; - -VkBuffer buffer; -VmaAllocation allocation; -vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr); -\endcode - -\section choosing_memory_type_required_preferred_flags Required and preferred flags - -You can specify more detailed requirements by filling members -VmaAllocationCreateInfo::requiredFlags and VmaAllocationCreateInfo::preferredFlags -with a combination of bits from enum `VkMemoryPropertyFlags`. For example, -if you want to create a buffer that will be persistently mapped on host (so it -must be `HOST_VISIBLE`) and preferably will also be `HOST_COHERENT` and `HOST_CACHED`, -use following code: - -\code -VmaAllocationCreateInfo allocInfo = {}; -allocInfo.requiredFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT; -allocInfo.preferredFlags = VK_MEMORY_PROPERTY_HOST_COHERENT_BIT | VK_MEMORY_PROPERTY_HOST_CACHED_BIT; -allocInfo.flags = VMA_ALLOCATION_CREATE_MAPPED_BIT; - -VkBuffer buffer; -VmaAllocation allocation; -vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr); -\endcode - -A memory type is chosen that has all the required flags and as many preferred -flags set as possible. - -If you use VmaAllocationCreateInfo::usage, it is just internally converted to -a set of required and preferred flags. - -\section choosing_memory_type_explicit_memory_types Explicit memory types - -If you inspected memory types available on the physical device and you have -a preference for memory types that you want to use, you can fill member -VmaAllocationCreateInfo::memoryTypeBits. It is a bit mask, where each bit set -means that a memory type with that index is allowed to be used for the -allocation. Special value 0, just like `UINT32_MAX`, means there are no -restrictions to memory type index. - -Please note that this member is NOT just a memory type index. -Still you can use it to choose just one, specific memory type. -For example, if you already determined that your buffer should be created in -memory type 2, use following code: - -\code -uint32_t memoryTypeIndex = 2; - -VmaAllocationCreateInfo allocInfo = {}; -allocInfo.memoryTypeBits = 1u << memoryTypeIndex; - -VkBuffer buffer; -VmaAllocation allocation; -vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr); -\endcode - -\section choosing_memory_type_custom_memory_pools Custom memory pools - -If you allocate from custom memory pool, all the ways of specifying memory -requirements described above are not applicable and the aforementioned members -of VmaAllocationCreateInfo structure are ignored. Memory type is selected -explicitly when creating the pool and then used to make all the allocations from -that pool. For further details, see \ref custom_memory_pools. - - -\page memory_mapping Memory mapping - -To "map memory" in Vulkan means to obtain a CPU pointer to `VkDeviceMemory`, -to be able to read from it or write to it in CPU code. -Mapping is possible only of memory allocated from a memory type that has -`VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` flag. -Functions `vkMapMemory()`, `vkUnmapMemory()` are designed for this purpose. -You can use them directly with memory allocated by this library, -but it is not recommended because of following issue: -Mapping the same `VkDeviceMemory` block multiple times is illegal - only one mapping at a time is allowed. -This includes mapping disjoint regions. Mapping is not reference-counted internally by Vulkan. -Because of this, Vulkan Memory Allocator provides following facilities: - -\section memory_mapping_mapping_functions Mapping functions - -The library provides following functions for mapping of a specific #VmaAllocation: vmaMapMemory(), vmaUnmapMemory(). -They are safer and more convenient to use than standard Vulkan functions. -You can map an allocation multiple times simultaneously - mapping is reference-counted internally. -You can also map different allocations simultaneously regardless of whether they use the same `VkDeviceMemory` block. -They way it's implemented is that the library always maps entire memory block, not just region of the allocation. -For further details, see description of vmaMapMemory() function. -Example: - -\code -// Having these objects initialized: - -struct ConstantBuffer -{ - ... -}; -ConstantBuffer constantBufferData; - -VmaAllocator allocator; -VmaBuffer constantBuffer; -VmaAllocation constantBufferAllocation; - -// You can map and fill your buffer using following code: - -void* mappedData; -vmaMapMemory(allocator, constantBufferAllocation, &mappedData); -memcpy(mappedData, &constantBufferData, sizeof(constantBufferData)); -vmaUnmapMemory(allocator, constantBufferAllocation); -\endcode - -\section memory_mapping_persistently_mapped_memory Persistently mapped memory - -Kepping your memory persistently mapped is generally OK in Vulkan. -You don't need to unmap it before using its data on the GPU. -The library provides a special feature designed for that: -Allocations made with #VMA_ALLOCATION_CREATE_MAPPED_BIT flag set in -VmaAllocationCreateInfo::flags stay mapped all the time, -so you can just access CPU pointer to it any time -without a need to call any "map" or "unmap" function. -Example: - -\code -VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; -bufCreateInfo.size = sizeof(ConstantBuffer); -bufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT; - -VmaAllocationCreateInfo allocCreateInfo = {}; -allocCreateInfo.usage = VMA_MEMORY_USAGE_CPU_ONLY; -allocCreateInfo.flags = VMA_ALLOCATION_CREATE_MAPPED_BIT; - -VkBuffer buf; -VmaAllocation alloc; -VmaAllocationInfo allocInfo; -vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo); - -// Buffer is already mapped. You can access its memory. -memcpy(allocInfo.pMappedData, &constantBufferData, sizeof(constantBufferData)); -\endcode - -There are some exceptions though, when you should consider mapping memory only for a short period of time: - -- When operating system is Windows 7 or 8.x (Windows 10 is not affected because it uses WDDM2), - device is discrete AMD GPU, - and memory type is the special 256 MiB pool of `DEVICE_LOCAL + HOST_VISIBLE` memory - (selected when you use #VMA_MEMORY_USAGE_CPU_TO_GPU), - then whenever a memory block allocated from this memory type stays mapped - for the time of any call to `vkQueueSubmit()` or `vkQueuePresentKHR()`, this - block is migrated by WDDM to system RAM, which degrades performance. It doesn't - matter if that particular memory block is actually used by the command buffer - being submitted. -- Keeping many large memory blocks mapped may impact performance or stability of some debugging tools. - -\section memory_mapping_cache_control Cache control - -Memory in Vulkan doesn't need to be unmapped before using it on GPU, -but unless a memory types has `VK_MEMORY_PROPERTY_HOST_COHERENT_BIT` flag set, -you need to manually invalidate cache before reading of mapped pointer -using function `vkvkInvalidateMappedMemoryRanges()` -and flush cache after writing to mapped pointer -using function `vkFlushMappedMemoryRanges()`. -Example: - -\code -memcpy(allocInfo.pMappedData, &constantBufferData, sizeof(constantBufferData)); - -VkMemoryPropertyFlags memFlags; -vmaGetMemoryTypeProperties(allocator, allocInfo.memoryType, &memFlags); -if((memFlags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT) == 0) -{ - VkMappedMemoryRange memRange = { VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE }; - memRange.memory = allocInfo.deviceMemory; - memRange.offset = allocInfo.offset; - memRange.size = allocInfo.size; - vkFlushMappedMemoryRanges(device, 1, &memRange); -} -\endcode - -Please note that memory allocated with #VMA_MEMORY_USAGE_CPU_ONLY is guaranteed to be host coherent. - -Also, Windows drivers from all 3 PC GPU vendors (AMD, Intel, NVIDIA) -currently provide `VK_MEMORY_PROPERTY_HOST_COHERENT_BIT` flag on all memory types that are -`VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT`, so on this platform you may not need to bother. - -\section memory_mapping_finding_if_memory_mappable Finding out if memory is mappable - -It may happen that your allocation ends up in memory that is `HOST_VISIBLE` (available for mapping) -despite it wasn't explicitly requested. -For example, application may work on integrated graphics with unified memory (like Intel) or -allocation from video memory might have failed, so the library chose system memory as fallback. - -You can detect this case and map such allocation to access its memory on CPU directly, -instead of launching a transfer operation. -In order to do that: inspect `allocInfo.memoryType`, call vmaGetMemoryTypeProperties(), -and look for `VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` flag in properties of that memory type. - -\code -VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; -bufCreateInfo.size = sizeof(ConstantBuffer); -bufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; - -VmaAllocationCreateInfo allocCreateInfo = {}; -allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; - -VkBuffer buf; -VmaAllocation alloc; -VmaAllocationInfo allocInfo; -vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo); - -VkMemoryPropertyFlags memFlags; -vmaGetMemoryTypeProperties(allocator, allocInfo.memoryType, &memFlags); -if((memFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0) -{ - // Allocation ended up in mappable memory. You can map it and access it directly. - void* mappedData; - vmaMapMemory(allocator, alloc, &mappedData); - memcpy(mappedData, &constantBufferData, sizeof(constantBufferData)); - vmaUnmapMemory(allocator, alloc); -} -else -{ - // Allocation ended up in non-mappable memory. - // You need to create CPU-side buffer in VMA_MEMORY_USAGE_CPU_ONLY and make a transfer. -} -\endcode - -You can even use #VMA_ALLOCATION_CREATE_MAPPED_BIT flag while creating allocations -that are not necessarily `HOST_VISIBLE` (e.g. using #VMA_MEMORY_USAGE_GPU_ONLY). -If the allocation ends up in memory type that is `HOST_VISIBLE`, it will be persistently mapped and you can use it directly. -If not, the flag is just ignored. -Example: - -\code -VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; -bufCreateInfo.size = sizeof(ConstantBuffer); -bufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; - -VmaAllocationCreateInfo allocCreateInfo = {}; -allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; -allocCreateInfo.flags = VMA_ALLOCATION_CREATE_MAPPED_BIT; - -VkBuffer buf; -VmaAllocation alloc; -VmaAllocationInfo allocInfo; -vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo); - -if(allocInfo.pUserData != nullptr) -{ - // Allocation ended up in mappable memory. - // It's persistently mapped. You can access it directly. - memcpy(allocInfo.pMappedData, &constantBufferData, sizeof(constantBufferData)); -} -else -{ - // Allocation ended up in non-mappable memory. - // You need to create CPU-side buffer in VMA_MEMORY_USAGE_CPU_ONLY and make a transfer. -} -\endcode - - -\page custom_memory_pools Custom memory pools - -A memory pool contains a number of `VkDeviceMemory` blocks. -The library automatically creates and manages default pool for each memory type available on the device. -Default memory pool automatically grows in size. -Size of allocated blocks is also variable and managed automatically. - -You can create custom pool and allocate memory out of it. -It can be useful if you want to: - -- Keep certain kind of allocations separate from others. -- Enforce particular, fixed size of Vulkan memory blocks. -- Limit maximum amount of Vulkan memory allocated for that pool. -- Reserve minimum or fixed amount of Vulkan memory always preallocated for that pool. - -To use custom memory pools: - --# Fill VmaPoolCreateInfo structure. --# Call vmaCreatePool() to obtain #VmaPool handle. --# When making an allocation, set VmaAllocationCreateInfo::pool to this handle. - You don't need to specify any other parameters of this structure, like usage. - -Example: - -\code -// Create a pool that can have at most 2 blocks, 128 MiB each. -VmaPoolCreateInfo poolCreateInfo = {}; -poolCreateInfo.memoryTypeIndex = ... -poolCreateInfo.blockSize = 128ull * 1024 * 1024; -poolCreateInfo.maxBlockCount = 2; - -VmaPool pool; -vmaCreatePool(allocator, &poolCreateInfo, &pool); - -// Allocate a buffer out of it. -VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; -bufCreateInfo.size = 1024; -bufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; - -VmaAllocationCreateInfo allocCreateInfo = {}; -allocCreateInfo.pool = pool; - -VkBuffer buf; -VmaAllocation alloc; -VmaAllocationInfo allocInfo; -vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo); -\endcode - -You have to free all allocations made from this pool before destroying it. - -\code -vmaDestroyBuffer(allocator, buf, alloc); -vmaDestroyPool(allocator, pool); -\endcode - -\section custom_memory_pools_MemTypeIndex Choosing memory type index - -When creating a pool, you must explicitly specify memory type index. -To find the one suitable for your buffers or images, you can use helper functions -vmaFindMemoryTypeIndexForBufferInfo(), vmaFindMemoryTypeIndexForImageInfo(). -You need to provide structures with example parameters of buffers or images -that you are going to create in that pool. - -\code -VkBufferCreateInfo exampleBufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; -exampleBufCreateInfo.size = 1024; // Whatever. -exampleBufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; // Change if needed. - -VmaAllocationCreateInfo allocCreateInfo = {}; -allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; // Change if needed. - -uint32_t memTypeIndex; -vmaFindMemoryTypeIndexForBufferInfo(allocator, &exampleBufCreateInfo, &allocCreateInfo, &memTypeIndex); - -VmaPoolCreateInfo poolCreateInfo = {}; -poolCreateInfo.memoryTypeIndex = memTypeIndex; -// ... -\endcode - -When creating buffers/images allocated in that pool, provide following parameters: - -- `VkBufferCreateInfo`: Prefer to pass same parameters as above. - Otherwise you risk creating resources in a memory type that is not suitable for them, which may result in undefined behavior. - Using different `VK_BUFFER_USAGE_` flags may work, but you shouldn't create images in a pool intended for buffers - or the other way around. -- VmaAllocationCreateInfo: You don't need to pass same parameters. Fill only `pool` member. - Other members are ignored anyway. - - -\page defragmentation Defragmentation - -Interleaved allocations and deallocations of many objects of varying size can -cause fragmentation, which can lead to a situation where the library is unable -to find a continuous range of free memory for a new allocation despite there is -enough free space, just scattered across many small free ranges between existing -allocations. - -To mitigate this problem, you can use vmaDefragment(). Given set of allocations, -this function can move them to compact used memory, ensure more continuous free -space and possibly also free some `VkDeviceMemory`. It can work only on -allocations made from memory type that is `HOST_VISIBLE`. Allocations are -modified to point to the new `VkDeviceMemory` and offset. Data in this memory is -also `memmove`-ed to the new place. However, if you have images or buffers bound -to these allocations (and you certainly do), you need to destroy, recreate, and -bind them to the new place in memory. - -For further details and example code, see documentation of function -vmaDefragment(). - -\page lost_allocations Lost allocations - -If your game oversubscribes video memory, if may work OK in previous-generation -graphics APIs (DirectX 9, 10, 11, OpenGL) because resources are automatically -paged to system RAM. In Vulkan you can't do it because when you run out of -memory, an allocation just fails. If you have more data (e.g. textures) that can -fit into VRAM and you don't need it all at once, you may want to upload them to -GPU on demand and "push out" ones that are not used for a long time to make room -for the new ones, effectively using VRAM (or a cartain memory pool) as a form of -cache. Vulkan Memory Allocator can help you with that by supporting a concept of -"lost allocations". - -To create an allocation that can become lost, include #VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT -flag in VmaAllocationCreateInfo::flags. Before using a buffer or image bound to -such allocation in every new frame, you need to query it if it's not lost. -To check it, call vmaTouchAllocation(). -If the allocation is lost, you should not use it or buffer/image bound to it. -You mustn't forget to destroy this allocation and this buffer/image. -vmaGetAllocationInfo() can also be used for checking status of the allocation. -Allocation is lost when returned VmaAllocationInfo::deviceMemory == `VK_NULL_HANDLE`. - -To create an allocation that can make some other allocations lost to make room -for it, use #VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT flag. You will -usually use both flags #VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT and -#VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT at the same time. - -Warning! Current implementation uses quite naive, brute force algorithm, -which can make allocation calls that use #VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT -flag quite slow. A new, more optimal algorithm and data structure to speed this -up is planned for the future. - -Q: When interleaving creation of new allocations with usage of existing ones, -how do you make sure that an allocation won't become lost while it's used in the -current frame? - -It is ensured because vmaTouchAllocation() / vmaGetAllocationInfo() not only returns allocation -status/parameters and checks whether it's not lost, but when it's not, it also -atomically marks it as used in the current frame, which makes it impossible to -become lost in that frame. It uses lockless algorithm, so it works fast and -doesn't involve locking any internal mutex. - -Q: What if my allocation may still be in use by the GPU when it's rendering a -previous frame while I already submit new frame on the CPU? - -You can make sure that allocations "touched" by vmaTouchAllocation() / vmaGetAllocationInfo() will not -become lost for a number of additional frames back from the current one by -specifying this number as VmaAllocatorCreateInfo::frameInUseCount (for default -memory pool) and VmaPoolCreateInfo::frameInUseCount (for custom pool). - -Q: How do you inform the library when new frame starts? - -You need to call function vmaSetCurrentFrameIndex(). - -Example code: - -\code -struct MyBuffer -{ - VkBuffer m_Buf = nullptr; - VmaAllocation m_Alloc = nullptr; - - // Called when the buffer is really needed in the current frame. - void EnsureBuffer(); -}; - -void MyBuffer::EnsureBuffer() -{ - // Buffer has been created. - if(m_Buf != VK_NULL_HANDLE) - { - // Check if its allocation is not lost + mark it as used in current frame. - if(vmaTouchAllocation(allocator, m_Alloc)) - { - // It's all OK - safe to use m_Buf. - return; - } - } - - // Buffer not yet exists or lost - destroy and recreate it. - - vmaDestroyBuffer(allocator, m_Buf, m_Alloc); - - VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; - bufCreateInfo.size = 1024; - bufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; - - VmaAllocationCreateInfo allocCreateInfo = {}; - allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; - allocCreateInfo.flags = VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT | - VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT; - - vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &m_Buf, &m_Alloc, nullptr); -} -\endcode - -When using lost allocations, you may see some Vulkan validation layer warnings -about overlapping regions of memory bound to different kinds of buffers and -images. This is still valid as long as you implement proper handling of lost -allocations (like in the example above) and don't use them. - -You can create an allocation that is already in lost state from the beginning using function -vmaCreateLostAllocation(). It may be useful if you need a "dummy" allocation that is not null. - -You can call function vmaMakePoolAllocationsLost() to set all eligible allocations -in a specified custom pool to lost state. -Allocations that have been "touched" in current frame or VmaPoolCreateInfo::frameInUseCount frames back -cannot become lost. - - -\page statistics Statistics - -This library contains functions that return information about its internal state, -especially the amount of memory allocated from Vulkan. -Please keep in mind that these functions need to traverse all internal data structures -to gather these information, so they may be quite time-consuming. -Don't call them too often. - -\section statistics_numeric_statistics Numeric statistics - -You can query for overall statistics of the allocator using function vmaCalculateStats(). -Information are returned using structure #VmaStats. -It contains #VmaStatInfo - number of allocated blocks, number of allocations -(occupied ranges in these blocks), number of unused (free) ranges in these blocks, -number of bytes used and unused (but still allocated from Vulkan) and other information. -They are summed across memory heaps, memory types and total for whole allocator. - -You can query for statistics of a custom pool using function vmaGetPoolStats(). -Information are returned using structure #VmaPoolStats. - -You can query for information about specific allocation using function vmaGetAllocationInfo(). -It fill structure #VmaAllocationInfo. - -\section statistics_json_dump JSON dump - -You can dump internal state of the allocator to a string in JSON format using function vmaBuildStatsString(). -The result is guaranteed to be correct JSON. -It uses ANSI encoding. -Any strings provided by user (see [Allocation names](@ref allocation_names)) -are copied as-is and properly escaped for JSON, so if they use UTF-8, ISO-8859-2 or any other encoding, -this JSON string can be treated as using this encoding. -It must be freed using function vmaFreeStatsString(). - -The format of this JSON string is not part of official documentation of the library, -but it will not change in backward-incompatible way without increasing library major version number -and appropriate mention in changelog. - -The JSON string contains all the data that can be obtained using vmaCalculateStats(). -It can also contain detailed map of allocated memory blocks and their regions - -free and occupied by allocations. -This allows e.g. to visualize the memory or assess fragmentation. - - -\page allocation_annotation Allocation names and user data - -\section allocation_user_data Allocation user data - -You can annotate allocations with your own information, e.g. for debugging purposes. -To do that, fill VmaAllocationCreateInfo::pUserData field when creating -an allocation. It's an opaque `void*` pointer. You can use it e.g. as a pointer, -some handle, index, key, ordinal number or any other value that would associate -the allocation with your custom metadata. - -\code -VkBufferCreateInfo bufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; -// Fill bufferInfo... - -MyBufferMetadata* pMetadata = CreateBufferMetadata(); - -VmaAllocationCreateInfo allocCreateInfo = {}; -allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; -allocCreateInfo.pUserData = pMetadata; - -VkBuffer buffer; -VmaAllocation allocation; -vmaCreateBuffer(allocator, &bufferInfo, &allocCreateInfo, &buffer, &allocation, nullptr); -\endcode - -The pointer may be later retrieved as VmaAllocationInfo::pUserData: - -\code -VmaAllocationInfo allocInfo; -vmaGetAllocationInfo(allocator, allocation, &allocInfo); -MyBufferMetadata* pMetadata = (MyBufferMetadata*)allocInfo.pUserData; -\endcode - -It can also be changed using function vmaSetAllocationUserData(). - -Values of (non-zero) allocations' `pUserData` are printed in JSON report created by -vmaBuildStatsString(), in hexadecimal form. - -\section allocation_names Allocation names - -There is alternative mode available where `pUserData` pointer is used to point to -a null-terminated string, giving a name to the allocation. To use this mode, -set #VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT flag in VmaAllocationCreateInfo::flags. -Then `pUserData` passed as VmaAllocationCreateInfo::pUserData or argument to -vmaSetAllocationUserData() must be either null or pointer to a null-terminated string. -The library creates internal copy of the string, so the pointer you pass doesn't need -to be valid for whole lifetime of the allocation. You can free it after the call. - -\code -VkImageCreateInfo imageInfo = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO }; -// Fill imageInfo... - -std::string imageName = "Texture: "; -imageName += fileName; - -VmaAllocationCreateInfo allocCreateInfo = {}; -allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; -allocCreateInfo.flags = VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT; -allocCreateInfo.pUserData = imageName.c_str(); - -VkImage image; -VmaAllocation allocation; -vmaCreateImage(allocator, &imageInfo, &allocCreateInfo, &image, &allocation, nullptr); -\endcode - -The value of `pUserData` pointer of the allocation will be different than the one -you passed when setting allocation's name - pointing to a buffer managed -internally that holds copy of the string. - -\code -VmaAllocationInfo allocInfo; -vmaGetAllocationInfo(allocator, allocation, &allocInfo); -const char* imageName = (const char*)allocInfo.pUserData; -printf("Image name: %s\n", imageName); -\endcode - -That string is also printed in JSON report created by vmaBuildStatsString(). - - -\page usage_patterns Recommended usage patterns - -\section usage_patterns_simple Simple patterns - -\subsection usage_patterns_simple_render_targets Render targets - -When: -Any resources that you frequently write and read on GPU, -e.g. images used as color attachments (aka "render targets"), depth-stencil attachments, -images/buffers used as storage image/buffer (aka "Unordered Access View (UAV)"). - -What to do: -Create them in video memory that is fastest to access from GPU using -#VMA_MEMORY_USAGE_GPU_ONLY. - -Consider using [VK_KHR_dedicated_allocation](@ref vk_khr_dedicated_allocation) extension -and/or manually creating them as dedicated allocations using #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT, -especially if they are large or if you plan to destroy and recreate them e.g. when -display resolution changes. -Prefer to create such resources first and all other GPU resources (like textures and vertex buffers) later. - -\subsection usage_patterns_simple_immutable_resources Immutable resources - -When: -Any resources that you fill on CPU only once (aka "immutable") or infrequently -and then read frequently on GPU, -e.g. textures, vertex and index buffers, constant buffers that don't change often. - -What to do: -Create them in video memory that is fastest to access from GPU using -#VMA_MEMORY_USAGE_GPU_ONLY. - -To initialize content of such resource, create a CPU-side (aka "staging") copy of it -in system memory - #VMA_MEMORY_USAGE_CPU_ONLY, map it, fill it, -and submit a transfer from it to the GPU resource. -You can keep the staging copy if you need it for another upload transfer in the future. -If you don't, you can destroy it or reuse this buffer for uploading different resource -after the transfer finishes. - -Prefer to create just buffers in system memory rather than images, even for uploading textures. -Use `vkCmdCopyBufferToImage()`. -Dont use images with `VK_IMAGE_TILING_LINEAR`. - -\subsection usage_patterns_dynamic_resources Dynamic resources - -When: -Any resources that change frequently (aka "dynamic"), e.g. every frame or every draw call, -written on CPU, read on GPU. - -What to do: -Create them using #VMA_MEMORY_USAGE_CPU_TO_GPU. -You can map it and write to it directly on CPU, as well as read from it on GPU. - -This is a more complex situation. Different solutions are possible, -and the best one depends on specific GPU type, but you can use this simple approach for the start. -Prefer to write to such resource sequentially (e.g. using `memcpy`). -Don't perform random access or any reads from it, as it may be very slow. - -\subsection usage_patterns_readback Readback - -When: -Resources that contain data written by GPU that you want to read back on CPU, -e.g. results of some computations. - -What to do: -Create them using #VMA_MEMORY_USAGE_GPU_TO_CPU. -You can write to them directly on GPU, as well as map and read them on CPU. - -\section usage_patterns_advanced Advanced patterns - -\subsection usage_patterns_integrated_graphics Detecting integrated graphics - -You can support integrated graphics (like Intel HD Graphics, AMD APU) better -by detecting it in Vulkan. -To do it, call `vkGetPhysicalDeviceProperties()`, inspect -`VkPhysicalDeviceProperties::deviceType` and look for `VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU`. -When you find it, you can assume that memory is unified and all memory types are equally fast -to access from GPU, regardless of `VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT`. - -You can then sum up sizes of all available memory heaps and treat them as useful for -your GPU resources, instead of only `DEVICE_LOCAL` ones. -You can also prefer to create your resources in memory types that are `HOST_VISIBLE` to map them -directly instead of submitting explicit transfer (see below). - -\subsection usage_patterns_direct_vs_transfer Direct access versus transfer - -For resources that you frequently write on CPU and read on GPU, many solutions are possible: - --# Create one copy in video memory using #VMA_MEMORY_USAGE_GPU_ONLY, - second copy in system memory using #VMA_MEMORY_USAGE_CPU_ONLY and submit explicit tranfer each time. --# Create just single copy using #VMA_MEMORY_USAGE_CPU_TO_GPU, map it and fill it on CPU, - read it directly on GPU. --# Create just single copy using #VMA_MEMORY_USAGE_CPU_ONLY, map it and fill it on CPU, - read it directly on GPU. - -Which solution is the most efficient depends on your resource and especially on the GPU. -It is best to measure it and then make the decision. -Some general recommendations: - -- On integrated graphics use (2) or (3) to avoid unnecesary time and memory overhead - related to using a second copy. -- For small resources (e.g. constant buffers) use (2). - Discrete AMD cards have special 256 MiB pool of video memory that is directly mappable. - Even if the resource ends up in system memory, its data may be cached on GPU after first - fetch over PCIe bus. -- For larger resources (e.g. textures), decide between (1) and (2). - You may want to differentiate NVIDIA and AMD, e.g. by looking for memory type that is - both `DEVICE_LOCAL` and `HOST_VISIBLE`. When you find it, use (2), otherwise use (1). - -Similarly, for resources that you frequently write on GPU and read on CPU, multiple -solutions are possible: - --# Create one copy in video memory using #VMA_MEMORY_USAGE_GPU_ONLY, - second copy in system memory using #VMA_MEMORY_USAGE_GPU_TO_CPU and submit explicit tranfer each time. --# Create just single copy using #VMA_MEMORY_USAGE_GPU_TO_CPU, write to it directly on GPU, - map it and read it on CPU. - -You should take some measurements to decide which option is faster in case of your specific -resource. - -If you don't want to specialize your code for specific types of GPUs, yon can still make -an simple optimization for cases when your resource ends up in mappable memory to use it -directly in this case instead of creating CPU-side staging copy. -For details see [Finding out if memory is mappable](@ref memory_mapping_finding_if_memory_mappable). - - -\page configuration Configuration - -Please check "CONFIGURATION SECTION" in the code to find macros that you can define -before each include of this file or change directly in this file to provide -your own implementation of basic facilities like assert, `min()` and `max()` functions, -mutex, atomic etc. -The library uses its own implementation of containers by default, but you can switch to using -STL containers instead. - -\section config_Vulkan_functions Pointers to Vulkan functions - -The library uses Vulkan functions straight from the `vulkan.h` header by default. -If you want to provide your own pointers to these functions, e.g. fetched using -`vkGetInstanceProcAddr()` and `vkGetDeviceProcAddr()`: - --# Define `VMA_STATIC_VULKAN_FUNCTIONS 0`. --# Provide valid pointers through VmaAllocatorCreateInfo::pVulkanFunctions. - -\section custom_memory_allocator Custom host memory allocator - -If you use custom allocator for CPU memory rather than default operator `new` -and `delete` from C++, you can make this library using your allocator as well -by filling optional member VmaAllocatorCreateInfo::pAllocationCallbacks. These -functions will be passed to Vulkan, as well as used by the library itself to -make any CPU-side allocations. - -\section allocation_callbacks Device memory allocation callbacks - -The library makes calls to `vkAllocateMemory()` and `vkFreeMemory()` internally. -You can setup callbacks to be informed about these calls, e.g. for the purpose -of gathering some statistics. To do it, fill optional member -VmaAllocatorCreateInfo::pDeviceMemoryCallbacks. - -\section heap_memory_limit Device heap memory limit - -If you want to test how your program behaves with limited amount of Vulkan device -memory available without switching your graphics card to one that really has -smaller VRAM, you can use a feature of this library intended for this purpose. -To do it, fill optional member VmaAllocatorCreateInfo::pHeapSizeLimit. - - - -\page vk_khr_dedicated_allocation VK_KHR_dedicated_allocation - -VK_KHR_dedicated_allocation is a Vulkan extension which can be used to improve -performance on some GPUs. It augments Vulkan API with possibility to query -driver whether it prefers particular buffer or image to have its own, dedicated -allocation (separate `VkDeviceMemory` block) for better efficiency - to be able -to do some internal optimizations. - -The extension is supported by this library. It will be used automatically when -enabled. To enable it: - -1 . When creating Vulkan device, check if following 2 device extensions are -supported (call `vkEnumerateDeviceExtensionProperties()`). -If yes, enable them (fill `VkDeviceCreateInfo::ppEnabledExtensionNames`). - -- VK_KHR_get_memory_requirements2 -- VK_KHR_dedicated_allocation - -If you enabled these extensions: - -2 . Use #VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT flag when creating -your #VmaAllocator`to inform the library that you enabled required extensions -and you want the library to use them. - -\code -allocatorInfo.flags |= VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT; - -vmaCreateAllocator(&allocatorInfo, &allocator); -\endcode - -That's all. The extension will be automatically used whenever you create a -buffer using vmaCreateBuffer() or image using vmaCreateImage(). - -When using the extension together with Vulkan Validation Layer, you will receive -warnings like this: - - vkBindBufferMemory(): Binding memory to buffer 0x33 but vkGetBufferMemoryRequirements() has not been called on that buffer. - -It is OK, you should just ignore it. It happens because you use function -`vkGetBufferMemoryRequirements2KHR()` instead of standard -`vkGetBufferMemoryRequirements()`, while the validation layer seems to be -unaware of it. - -To learn more about this extension, see: - -- [VK_KHR_dedicated_allocation in Vulkan specification](https://www.khronos.org/registry/vulkan/specs/1.0-extensions/html/vkspec.html#VK_KHR_dedicated_allocation) -- [VK_KHR_dedicated_allocation unofficial manual](http://asawicki.info/articles/VK_KHR_dedicated_allocation.php5) - - - -\page general_considerations General considerations - -\section general_considerations_thread_safety Thread safety - -- The library has no global state, so separate #VmaAllocator objects can be used - independently. - There should be no need to create multiple such objects though - one per `VkDevice` is enough. -- By default, all calls to functions that take #VmaAllocator as first parameter - are safe to call from multiple threads simultaneously because they are - synchronized internally when needed. -- When the allocator is created with #VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT - flag, calls to functions that take such #VmaAllocator object must be - synchronized externally. -- Access to a #VmaAllocation object must be externally synchronized. For example, - you must not call vmaGetAllocationInfo() and vmaMapMemory() from different - threads at the same time if you pass the same #VmaAllocation object to these - functions. - -\section general_considerations_allocation_algorithm Allocation algorithm - -The library uses following algorithm for allocation, in order: - --# Try to find free range of memory in existing blocks. --# If failed, try to create a new block of `VkDeviceMemory`, with preferred block size. --# If failed, try to create such block with size/2, size/4, size/8. --# If failed and #VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT flag was - specified, try to find space in existing blocks, possilby making some other - allocations lost. --# If failed, try to allocate separate `VkDeviceMemory` for this allocation, - just like when you use #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT. --# If failed, choose other memory type that meets the requirements specified in - VmaAllocationCreateInfo and go to point 1. --# If failed, return `VK_ERROR_OUT_OF_DEVICE_MEMORY`. - -\section general_considerations_features_not_supported Features not supported - -Features deliberately excluded from the scope of this library: - -- Data transfer - issuing commands that transfer data between buffers or images, any usage of - `VkCommandList` or `VkCommandQueue` and related synchronization is responsibility of the user. -- Support for any programming languages other than C/C++. - Bindings to other languages are welcomed as external projects. - */ -#include +#ifdef __cplusplus +extern "C" { +#endif + +/* +Define this macro to 0/1 to disable/enable support for recording functionality, +available through VmaAllocatorCreateInfo::pRecordSettings. +*/ +#ifndef VMA_RECORDING_ENABLED + #define VMA_RECORDING_ENABLED 0 +#endif + +#if defined(__ANDROID__) && defined(VK_NO_PROTOTYPES) && VMA_STATIC_VULKAN_FUNCTIONS + extern PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr; + extern PFN_vkGetDeviceProcAddr vkGetDeviceProcAddr; + extern PFN_vkGetPhysicalDeviceProperties vkGetPhysicalDeviceProperties; + extern PFN_vkGetPhysicalDeviceMemoryProperties vkGetPhysicalDeviceMemoryProperties; + extern PFN_vkAllocateMemory vkAllocateMemory; + extern PFN_vkFreeMemory vkFreeMemory; + extern PFN_vkMapMemory vkMapMemory; + extern PFN_vkUnmapMemory vkUnmapMemory; + extern PFN_vkFlushMappedMemoryRanges vkFlushMappedMemoryRanges; + extern PFN_vkInvalidateMappedMemoryRanges vkInvalidateMappedMemoryRanges; + extern PFN_vkBindBufferMemory vkBindBufferMemory; + extern PFN_vkBindImageMemory vkBindImageMemory; + extern PFN_vkGetBufferMemoryRequirements vkGetBufferMemoryRequirements; + extern PFN_vkGetImageMemoryRequirements vkGetImageMemoryRequirements; + extern PFN_vkCreateBuffer vkCreateBuffer; + extern PFN_vkDestroyBuffer vkDestroyBuffer; + extern PFN_vkCreateImage vkCreateImage; + extern PFN_vkDestroyImage vkDestroyImage; + extern PFN_vkCmdCopyBuffer vkCmdCopyBuffer; + #if VMA_VULKAN_VERSION >= 1001000 + extern PFN_vkGetBufferMemoryRequirements2 vkGetBufferMemoryRequirements2; + extern PFN_vkGetImageMemoryRequirements2 vkGetImageMemoryRequirements2; + extern PFN_vkBindBufferMemory2 vkBindBufferMemory2; + extern PFN_vkBindImageMemory2 vkBindImageMemory2; + extern PFN_vkGetPhysicalDeviceMemoryProperties2 vkGetPhysicalDeviceMemoryProperties2; + #endif // #if VMA_VULKAN_VERSION >= 1001000 +#endif // #if defined(__ANDROID__) && VMA_STATIC_VULKAN_FUNCTIONS && VK_NO_PROTOTYPES + +#ifndef VULKAN_H_ + #include +#endif + +// Define this macro to declare maximum supported Vulkan version in format AAABBBCCC, +// where AAA = major, BBB = minor, CCC = patch. +// If you want to use version > 1.0, it still needs to be enabled via VmaAllocatorCreateInfo::vulkanApiVersion. +#if !defined(VMA_VULKAN_VERSION) + #if defined(VK_VERSION_1_2) + #define VMA_VULKAN_VERSION 1002000 + #elif defined(VK_VERSION_1_1) + #define VMA_VULKAN_VERSION 1001000 + #else + #define VMA_VULKAN_VERSION 1000000 + #endif +#endif + +#if !defined(VMA_DEDICATED_ALLOCATION) + #if VK_KHR_get_memory_requirements2 && VK_KHR_dedicated_allocation + #define VMA_DEDICATED_ALLOCATION 1 + #else + #define VMA_DEDICATED_ALLOCATION 0 + #endif +#endif + +#if !defined(VMA_BIND_MEMORY2) + #if VK_KHR_bind_memory2 + #define VMA_BIND_MEMORY2 1 + #else + #define VMA_BIND_MEMORY2 0 + #endif +#endif + +#if !defined(VMA_MEMORY_BUDGET) + #if VK_EXT_memory_budget && (VK_KHR_get_physical_device_properties2 || VMA_VULKAN_VERSION >= 1001000) + #define VMA_MEMORY_BUDGET 1 + #else + #define VMA_MEMORY_BUDGET 0 + #endif +#endif + +// Defined to 1 when VK_KHR_buffer_device_address device extension or equivalent core Vulkan 1.2 feature is defined in its headers. +#if !defined(VMA_BUFFER_DEVICE_ADDRESS) + #if VK_KHR_buffer_device_address || VMA_VULKAN_VERSION >= 1002000 + #define VMA_BUFFER_DEVICE_ADDRESS 1 + #else + #define VMA_BUFFER_DEVICE_ADDRESS 0 + #endif +#endif + +// Defined to 1 when VK_EXT_memory_priority device extension is defined in Vulkan headers. +#if !defined(VMA_MEMORY_PRIORITY) + #if VK_EXT_memory_priority + #define VMA_MEMORY_PRIORITY 1 + #else + #define VMA_MEMORY_PRIORITY 0 + #endif +#endif + +// Defined to 1 when VK_KHR_external_memory device extension is defined in Vulkan headers. +#if !defined(VMA_EXTERNAL_MEMORY) + #if VK_KHR_external_memory + #define VMA_EXTERNAL_MEMORY 1 + #else + #define VMA_EXTERNAL_MEMORY 0 + #endif +#endif + +// Define these macros to decorate all public functions with additional code, +// before and after returned type, appropriately. This may be useful for +// exporting the functions when compiling VMA as a separate library. Example: +// #define VMA_CALL_PRE __declspec(dllexport) +// #define VMA_CALL_POST __cdecl +#ifndef VMA_CALL_PRE + #define VMA_CALL_PRE +#endif +#ifndef VMA_CALL_POST + #define VMA_CALL_POST +#endif + +// Define this macro to decorate pointers with an attribute specifying the +// length of the array they point to if they are not null. +// +// The length may be one of +// - The name of another parameter in the argument list where the pointer is declared +// - The name of another member in the struct where the pointer is declared +// - The name of a member of a struct type, meaning the value of that member in +// the context of the call. For example +// VMA_LEN_IF_NOT_NULL("VkPhysicalDeviceMemoryProperties::memoryHeapCount"), +// this means the number of memory heaps available in the device associated +// with the VmaAllocator being dealt with. +#ifndef VMA_LEN_IF_NOT_NULL + #define VMA_LEN_IF_NOT_NULL(len) +#endif + +// The VMA_NULLABLE macro is defined to be _Nullable when compiling with Clang. +// see: https://clang.llvm.org/docs/AttributeReference.html#nullable +#ifndef VMA_NULLABLE + #ifdef __clang__ + #define VMA_NULLABLE _Nullable + #else + #define VMA_NULLABLE + #endif +#endif + +// The VMA_NOT_NULL macro is defined to be _Nonnull when compiling with Clang. +// see: https://clang.llvm.org/docs/AttributeReference.html#nonnull +#ifndef VMA_NOT_NULL + #ifdef __clang__ + #define VMA_NOT_NULL _Nonnull + #else + #define VMA_NOT_NULL + #endif +#endif + +// If non-dispatchable handles are represented as pointers then we can give +// then nullability annotations +#ifndef VMA_NOT_NULL_NON_DISPATCHABLE + #if defined(__LP64__) || defined(_WIN64) || (defined(__x86_64__) && !defined(__ILP32__) ) || defined(_M_X64) || defined(__ia64) || defined (_M_IA64) || defined(__aarch64__) || defined(__powerpc64__) + #define VMA_NOT_NULL_NON_DISPATCHABLE VMA_NOT_NULL + #else + #define VMA_NOT_NULL_NON_DISPATCHABLE + #endif +#endif + +#ifndef VMA_NULLABLE_NON_DISPATCHABLE + #if defined(__LP64__) || defined(_WIN64) || (defined(__x86_64__) && !defined(__ILP32__) ) || defined(_M_X64) || defined(__ia64) || defined (_M_IA64) || defined(__aarch64__) || defined(__powerpc64__) + #define VMA_NULLABLE_NON_DISPATCHABLE VMA_NULLABLE + #else + #define VMA_NULLABLE_NON_DISPATCHABLE + #endif +#endif /** \struct VmaAllocator \brief Represents main object of this library initialized. -Fill structure VmaAllocatorCreateInfo and call function vmaCreateAllocator() to create it. +Fill structure #VmaAllocatorCreateInfo and call function vmaCreateAllocator() to create it. Call function vmaDestroyAllocator() to destroy it. It is recommended to create just one object of this type per `VkDevice` object, @@ -1086,16 +291,18 @@ VK_DEFINE_HANDLE(VmaAllocator) /// Callback function called after successful vkAllocateMemory. typedef void (VKAPI_PTR *PFN_vmaAllocateDeviceMemoryFunction)( - VmaAllocator allocator, - uint32_t memoryType, - VkDeviceMemory memory, - VkDeviceSize size); + VmaAllocator VMA_NOT_NULL allocator, + uint32_t memoryType, + VkDeviceMemory VMA_NOT_NULL_NON_DISPATCHABLE memory, + VkDeviceSize size, + void* VMA_NULLABLE pUserData); /// Callback function called before vkFreeMemory. typedef void (VKAPI_PTR *PFN_vmaFreeDeviceMemoryFunction)( - VmaAllocator allocator, - uint32_t memoryType, - VkDeviceMemory memory, - VkDeviceSize size); + VmaAllocator VMA_NOT_NULL allocator, + uint32_t memoryType, + VkDeviceMemory VMA_NOT_NULL_NON_DISPATCHABLE memory, + VkDeviceSize size, + void* VMA_NULLABLE pUserData); /** \brief Set of callbacks that the library will call for `vkAllocateMemory` and `vkFreeMemory`. @@ -1106,9 +313,11 @@ Used in VmaAllocatorCreateInfo::pDeviceMemoryCallbacks. */ typedef struct VmaDeviceMemoryCallbacks { /// Optional, can be null. - PFN_vmaAllocateDeviceMemoryFunction pfnAllocate; + PFN_vmaAllocateDeviceMemoryFunction VMA_NULLABLE pfnAllocate; /// Optional, can be null. - PFN_vmaFreeDeviceMemoryFunction pfnFree; + PFN_vmaFreeDeviceMemoryFunction VMA_NULLABLE pfnFree; + /// Optional, can be null. + void* VMA_NULLABLE pUserData; } VmaDeviceMemoryCallbacks; /// Flags for created #VmaAllocator. @@ -1120,7 +329,10 @@ typedef enum VmaAllocatorCreateFlagBits { VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT = 0x00000001, /** \brief Enables usage of VK_KHR_dedicated_allocation extension. - Using this extenion will automatically allocate dedicated blocks of memory for + The flag works only if VmaAllocatorCreateInfo::vulkanApiVersion `== VK_API_VERSION_1_0`. + When it is `VK_API_VERSION_1_1`, the flag is ignored because the extension has been promoted to Vulkan 1.1. + + Using this extension will automatically allocate dedicated blocks of memory for some buffers and images instead of suballocating place for them out of bigger memory blocks (as if you explicitly used #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT flag) when it is recommended by the driver. It may improve performance on some @@ -1131,15 +343,95 @@ typedef enum VmaAllocatorCreateFlagBits { VmaAllocatorCreateInfo::device, and you want them to be used internally by this library: - - VK_KHR_get_memory_requirements2 - - VK_KHR_dedicated_allocation + - VK_KHR_get_memory_requirements2 (device extension) + - VK_KHR_dedicated_allocation (device extension) -When this flag is set, you can experience following warnings reported by Vulkan -validation layer. You can ignore them. + When this flag is set, you can experience following warnings reported by Vulkan + validation layer. You can ignore them. -> vkBindBufferMemory(): Binding memory to buffer 0x2d but vkGetBufferMemoryRequirements() has not been called on that buffer. + > vkBindBufferMemory(): Binding memory to buffer 0x2d but vkGetBufferMemoryRequirements() has not been called on that buffer. */ VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT = 0x00000002, + /** + Enables usage of VK_KHR_bind_memory2 extension. + + The flag works only if VmaAllocatorCreateInfo::vulkanApiVersion `== VK_API_VERSION_1_0`. + When it is `VK_API_VERSION_1_1`, the flag is ignored because the extension has been promoted to Vulkan 1.1. + + You may set this flag only if you found out that this device extension is supported, + you enabled it while creating Vulkan device passed as VmaAllocatorCreateInfo::device, + and you want it to be used internally by this library. + + The extension provides functions `vkBindBufferMemory2KHR` and `vkBindImageMemory2KHR`, + which allow to pass a chain of `pNext` structures while binding. + This flag is required if you use `pNext` parameter in vmaBindBufferMemory2() or vmaBindImageMemory2(). + */ + VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT = 0x00000004, + /** + Enables usage of VK_EXT_memory_budget extension. + + You may set this flag only if you found out that this device extension is supported, + you enabled it while creating Vulkan device passed as VmaAllocatorCreateInfo::device, + and you want it to be used internally by this library, along with another instance extension + VK_KHR_get_physical_device_properties2, which is required by it (or Vulkan 1.1, where this extension is promoted). + + The extension provides query for current memory usage and budget, which will probably + be more accurate than an estimation used by the library otherwise. + */ + VMA_ALLOCATOR_CREATE_EXT_MEMORY_BUDGET_BIT = 0x00000008, + /** + Enables usage of VK_AMD_device_coherent_memory extension. + + You may set this flag only if you: + + - found out that this device extension is supported and enabled it while creating Vulkan device passed as VmaAllocatorCreateInfo::device, + - checked that `VkPhysicalDeviceCoherentMemoryFeaturesAMD::deviceCoherentMemory` is true and set it while creating the Vulkan device, + - want it to be used internally by this library. + + The extension and accompanying device feature provide access to memory types with + `VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD` and `VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD` flags. + They are useful mostly for writing breadcrumb markers - a common method for debugging GPU crash/hang/TDR. + + When the extension is not enabled, such memory types are still enumerated, but their usage is illegal. + To protect from this error, if you don't create the allocator with this flag, it will refuse to allocate any memory or create a custom pool in such memory type, + returning `VK_ERROR_FEATURE_NOT_PRESENT`. + */ + VMA_ALLOCATOR_CREATE_AMD_DEVICE_COHERENT_MEMORY_BIT = 0x00000010, + /** + Enables usage of "buffer device address" feature, which allows you to use function + `vkGetBufferDeviceAddress*` to get raw GPU pointer to a buffer and pass it for usage inside a shader. + + You may set this flag only if you: + + 1. (For Vulkan version < 1.2) Found as available and enabled device extension + VK_KHR_buffer_device_address. + This extension is promoted to core Vulkan 1.2. + 2. Found as available and enabled device feature `VkPhysicalDeviceBufferDeviceAddressFeatures::bufferDeviceAddress`. + + When this flag is set, you can create buffers with `VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT` using VMA. + The library automatically adds `VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT` to + allocated memory blocks wherever it might be needed. + + For more information, see documentation chapter \ref enabling_buffer_device_address. + */ + VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT = 0x00000020, + /** + Enables usage of VK_EXT_memory_priority extension in the library. + + You may set this flag only if you found available and enabled this device extension, + along with `VkPhysicalDeviceMemoryPriorityFeaturesEXT::memoryPriority == VK_TRUE`, + while creating Vulkan device passed as VmaAllocatorCreateInfo::device. + + When this flag is used, VmaAllocationCreateInfo::priority and VmaPoolCreateInfo::priority + are used to set priorities of allocated Vulkan memory. Without it, these variables are ignored. + + A priority must be a floating-point value between 0 and 1, indicating the priority of the allocation relative to other memory allocations. + Larger values are higher priority. The granularity of the priorities is implementation-dependent. + It is automatically passed to every call to `vkAllocateMemory` done by the library using structure `VkMemoryPriorityAllocateInfoEXT`. + The value to be used for default priority is 0.5. + For more details, see the documentation of the VK_EXT_memory_priority extension. + */ + VMA_ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT = 0x00000040, VMA_ALLOCATOR_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF } VmaAllocatorCreateFlagBits; @@ -1150,24 +442,64 @@ typedef VkFlags VmaAllocatorCreateFlags; Used in VmaAllocatorCreateInfo::pVulkanFunctions. */ typedef struct VmaVulkanFunctions { - PFN_vkGetPhysicalDeviceProperties vkGetPhysicalDeviceProperties; - PFN_vkGetPhysicalDeviceMemoryProperties vkGetPhysicalDeviceMemoryProperties; - PFN_vkAllocateMemory vkAllocateMemory; - PFN_vkFreeMemory vkFreeMemory; - PFN_vkMapMemory vkMapMemory; - PFN_vkUnmapMemory vkUnmapMemory; - PFN_vkBindBufferMemory vkBindBufferMemory; - PFN_vkBindImageMemory vkBindImageMemory; - PFN_vkGetBufferMemoryRequirements vkGetBufferMemoryRequirements; - PFN_vkGetImageMemoryRequirements vkGetImageMemoryRequirements; - PFN_vkCreateBuffer vkCreateBuffer; - PFN_vkDestroyBuffer vkDestroyBuffer; - PFN_vkCreateImage vkCreateImage; - PFN_vkDestroyImage vkDestroyImage; - PFN_vkGetBufferMemoryRequirements2KHR vkGetBufferMemoryRequirements2KHR; - PFN_vkGetImageMemoryRequirements2KHR vkGetImageMemoryRequirements2KHR; + PFN_vkGetPhysicalDeviceProperties VMA_NULLABLE vkGetPhysicalDeviceProperties; + PFN_vkGetPhysicalDeviceMemoryProperties VMA_NULLABLE vkGetPhysicalDeviceMemoryProperties; + PFN_vkAllocateMemory VMA_NULLABLE vkAllocateMemory; + PFN_vkFreeMemory VMA_NULLABLE vkFreeMemory; + PFN_vkMapMemory VMA_NULLABLE vkMapMemory; + PFN_vkUnmapMemory VMA_NULLABLE vkUnmapMemory; + PFN_vkFlushMappedMemoryRanges VMA_NULLABLE vkFlushMappedMemoryRanges; + PFN_vkInvalidateMappedMemoryRanges VMA_NULLABLE vkInvalidateMappedMemoryRanges; + PFN_vkBindBufferMemory VMA_NULLABLE vkBindBufferMemory; + PFN_vkBindImageMemory VMA_NULLABLE vkBindImageMemory; + PFN_vkGetBufferMemoryRequirements VMA_NULLABLE vkGetBufferMemoryRequirements; + PFN_vkGetImageMemoryRequirements VMA_NULLABLE vkGetImageMemoryRequirements; + PFN_vkCreateBuffer VMA_NULLABLE vkCreateBuffer; + PFN_vkDestroyBuffer VMA_NULLABLE vkDestroyBuffer; + PFN_vkCreateImage VMA_NULLABLE vkCreateImage; + PFN_vkDestroyImage VMA_NULLABLE vkDestroyImage; + PFN_vkCmdCopyBuffer VMA_NULLABLE vkCmdCopyBuffer; +#if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000 + PFN_vkGetBufferMemoryRequirements2KHR VMA_NULLABLE vkGetBufferMemoryRequirements2KHR; + PFN_vkGetImageMemoryRequirements2KHR VMA_NULLABLE vkGetImageMemoryRequirements2KHR; +#endif +#if VMA_BIND_MEMORY2 || VMA_VULKAN_VERSION >= 1001000 + PFN_vkBindBufferMemory2KHR VMA_NULLABLE vkBindBufferMemory2KHR; + PFN_vkBindImageMemory2KHR VMA_NULLABLE vkBindImageMemory2KHR; +#endif +#if VMA_MEMORY_BUDGET || VMA_VULKAN_VERSION >= 1001000 + PFN_vkGetPhysicalDeviceMemoryProperties2KHR VMA_NULLABLE vkGetPhysicalDeviceMemoryProperties2KHR; +#endif } VmaVulkanFunctions; +/// Flags to be used in VmaRecordSettings::flags. +typedef enum VmaRecordFlagBits { + /** \brief Enables flush after recording every function call. + + Enable it if you expect your application to crash, which may leave recording file truncated. + It may degrade performance though. + */ + VMA_RECORD_FLUSH_AFTER_CALL_BIT = 0x00000001, + + VMA_RECORD_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF +} VmaRecordFlagBits; +typedef VkFlags VmaRecordFlags; + +/// Parameters for recording calls to VMA functions. To be used in VmaAllocatorCreateInfo::pRecordSettings. +typedef struct VmaRecordSettings +{ + /// Flags for recording. Use #VmaRecordFlagBits enum. + VmaRecordFlags flags; + /** \brief Path to the file that should be written by the recording. + + Suggested extension: "csv". + If the file already exists, it will be overwritten. + It will be opened for the whole time #VmaAllocator object is alive. + If opening this file fails, creation of the whole allocator object fails. + */ + const char* VMA_NOT_NULL pFilePath; +} VmaRecordSettings; + /// Description of a Allocator to be created. typedef struct VmaAllocatorCreateInfo { @@ -1175,19 +507,19 @@ typedef struct VmaAllocatorCreateInfo VmaAllocatorCreateFlags flags; /// Vulkan physical device. /** It must be valid throughout whole lifetime of created allocator. */ - VkPhysicalDevice physicalDevice; + VkPhysicalDevice VMA_NOT_NULL physicalDevice; /// Vulkan device. /** It must be valid throughout whole lifetime of created allocator. */ - VkDevice device; + VkDevice VMA_NOT_NULL device; /// Preferred size of a single `VkDeviceMemory` block to be allocated from large heaps > 1 GiB. Optional. /** Set to 0 to use default, which is currently 256 MiB. */ VkDeviceSize preferredLargeHeapBlockSize; /// Custom CPU memory allocation callbacks. Optional. /** Optional, can be null. When specified, will also be used for all CPU-side memory allocations. */ - const VkAllocationCallbacks* pAllocationCallbacks; + const VkAllocationCallbacks* VMA_NULLABLE pAllocationCallbacks; /// Informative callbacks for `vkAllocateMemory`, `vkFreeMemory`. Optional. /** Optional, can be null. */ - const VmaDeviceMemoryCallbacks* pDeviceMemoryCallbacks; + const VmaDeviceMemoryCallbacks* VMA_NULLABLE pDeviceMemoryCallbacks; /** \brief Maximum number of additional frames that are in use at the same time as current frame. This value is used only when you make allocations with @@ -1223,47 +555,103 @@ typedef struct VmaAllocatorCreateInfo smaller amount of memory, because graphics driver doesn't necessary fail new allocations with `VK_ERROR_OUT_OF_DEVICE_MEMORY` result when memory capacity is exceeded. It may return success and just silently migrate some device memory - blocks to system RAM. + blocks to system RAM. This driver behavior can also be controlled using + VK_AMD_memory_overallocation_behavior extension. */ - const VkDeviceSize* pHeapSizeLimit; - /** \brief Pointers to Vulkan functions. Can be null if you leave define `VMA_STATIC_VULKAN_FUNCTIONS 1`. + const VkDeviceSize* VMA_NULLABLE VMA_LEN_IF_NOT_NULL("VkPhysicalDeviceMemoryProperties::memoryHeapCount") pHeapSizeLimit; - If you leave define `VMA_STATIC_VULKAN_FUNCTIONS 1` in configuration section, - you can pass null as this member, because the library will fetch pointers to - Vulkan functions internally in a static way, like: + /** \brief Pointers to Vulkan functions. Can be null. - vulkanFunctions.vkAllocateMemory = &vkAllocateMemory; - - Fill this member if you want to provide your own pointers to Vulkan functions, - e.g. fetched using `vkGetInstanceProcAddr()` and `vkGetDeviceProcAddr()`. + For details see [Pointers to Vulkan functions](@ref config_Vulkan_functions). */ - const VmaVulkanFunctions* pVulkanFunctions; + const VmaVulkanFunctions* VMA_NULLABLE pVulkanFunctions; + /** \brief Parameters for recording of VMA calls. Can be null. + + If not null, it enables recording of calls to VMA functions to a file. + If support for recording is not enabled using `VMA_RECORDING_ENABLED` macro, + creation of the allocator object fails with `VK_ERROR_FEATURE_NOT_PRESENT`. + */ + const VmaRecordSettings* VMA_NULLABLE pRecordSettings; + /** \brief Handle to Vulkan instance object. + + Starting from version 3.0.0 this member is no longer optional, it must be set! + */ + VkInstance VMA_NOT_NULL instance; + /** \brief Optional. The highest version of Vulkan that the application is designed to use. + + It must be a value in the format as created by macro `VK_MAKE_VERSION` or a constant like: `VK_API_VERSION_1_1`, `VK_API_VERSION_1_0`. + The patch version number specified is ignored. Only the major and minor versions are considered. + It must be less or equal (preferably equal) to value as passed to `vkCreateInstance` as `VkApplicationInfo::apiVersion`. + Only versions 1.0, 1.1, 1.2 are supported by the current implementation. + Leaving it initialized to zero is equivalent to `VK_API_VERSION_1_0`. + */ + uint32_t vulkanApiVersion; +#if VMA_EXTERNAL_MEMORY + /** \brief Either null or a pointer to an array of external memory handle types for each Vulkan memory type. + + If not NULL, it must be a pointer to an array of `VkPhysicalDeviceMemoryProperties::memoryTypeCount` + elements, defining external memory handle types of particular Vulkan memory type, + to be passed using `VkExportMemoryAllocateInfoKHR`. + + Any of the elements may be equal to 0, which means not to use `VkExportMemoryAllocateInfoKHR` on this memory type. + This is also the default in case of `pTypeExternalMemoryHandleTypes` = NULL. + */ + const VkExternalMemoryHandleTypeFlagsKHR* VMA_NULLABLE VMA_LEN_IF_NOT_NULL("VkPhysicalDeviceMemoryProperties::memoryTypeCount") pTypeExternalMemoryHandleTypes; +#endif // #if VMA_EXTERNAL_MEMORY } VmaAllocatorCreateInfo; /// Creates Allocator object. -VkResult vmaCreateAllocator( - const VmaAllocatorCreateInfo* pCreateInfo, - VmaAllocator* pAllocator); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAllocator( + const VmaAllocatorCreateInfo* VMA_NOT_NULL pCreateInfo, + VmaAllocator VMA_NULLABLE * VMA_NOT_NULL pAllocator); /// Destroys allocator object. -void vmaDestroyAllocator( - VmaAllocator allocator); +VMA_CALL_PRE void VMA_CALL_POST vmaDestroyAllocator( + VmaAllocator VMA_NULLABLE allocator); + +/** \brief Information about existing #VmaAllocator object. +*/ +typedef struct VmaAllocatorInfo +{ + /** \brief Handle to Vulkan instance object. + + This is the same value as has been passed through VmaAllocatorCreateInfo::instance. + */ + VkInstance VMA_NOT_NULL instance; + /** \brief Handle to Vulkan physical device object. + + This is the same value as has been passed through VmaAllocatorCreateInfo::physicalDevice. + */ + VkPhysicalDevice VMA_NOT_NULL physicalDevice; + /** \brief Handle to Vulkan device object. + + This is the same value as has been passed through VmaAllocatorCreateInfo::device. + */ + VkDevice VMA_NOT_NULL device; +} VmaAllocatorInfo; + +/** \brief Returns information about existing #VmaAllocator object - handle to Vulkan device etc. + +It might be useful if you want to keep just the #VmaAllocator handle and fetch other required handles to +`VkPhysicalDevice`, `VkDevice` etc. every time using this function. +*/ +VMA_CALL_PRE void VMA_CALL_POST vmaGetAllocatorInfo(VmaAllocator VMA_NOT_NULL allocator, VmaAllocatorInfo* VMA_NOT_NULL pAllocatorInfo); /** PhysicalDeviceProperties are fetched from physicalDevice by the allocator. You can access it here, without fetching it again on your own. */ -void vmaGetPhysicalDeviceProperties( - VmaAllocator allocator, - const VkPhysicalDeviceProperties** ppPhysicalDeviceProperties); +VMA_CALL_PRE void VMA_CALL_POST vmaGetPhysicalDeviceProperties( + VmaAllocator VMA_NOT_NULL allocator, + const VkPhysicalDeviceProperties* VMA_NULLABLE * VMA_NOT_NULL ppPhysicalDeviceProperties); /** PhysicalDeviceMemoryProperties are fetched from physicalDevice by the allocator. You can access it here, without fetching it again on your own. */ -void vmaGetMemoryProperties( - VmaAllocator allocator, - const VkPhysicalDeviceMemoryProperties** ppPhysicalDeviceMemoryProperties); +VMA_CALL_PRE void VMA_CALL_POST vmaGetMemoryProperties( + VmaAllocator VMA_NOT_NULL allocator, + const VkPhysicalDeviceMemoryProperties* VMA_NULLABLE * VMA_NOT_NULL ppPhysicalDeviceMemoryProperties); /** \brief Given Memory Type Index, returns Property Flags of this memory type. @@ -1271,10 +659,10 @@ void vmaGetMemoryProperties( This is just a convenience function. Same information can be obtained using vmaGetMemoryProperties(). */ -void vmaGetMemoryTypeProperties( - VmaAllocator allocator, +VMA_CALL_PRE void VMA_CALL_POST vmaGetMemoryTypeProperties( + VmaAllocator VMA_NOT_NULL allocator, uint32_t memoryTypeIndex, - VkMemoryPropertyFlags* pFlags); + VkMemoryPropertyFlags* VMA_NOT_NULL pFlags); /** \brief Sets index of the current frame. @@ -1284,8 +672,8 @@ This function must be used if you make allocations with when a new frame begins. Allocations queried using vmaGetAllocationInfo() cannot become lost in the current frame. */ -void vmaSetCurrentFrameIndex( - VmaAllocator allocator, +VMA_CALL_PRE void VMA_CALL_POST vmaSetCurrentFrameIndex( + VmaAllocator VMA_NOT_NULL allocator, uint32_t frameIndex); /** \brief Calculated statistics of memory usage in entire allocator. @@ -1314,26 +702,95 @@ typedef struct VmaStats VmaStatInfo total; } VmaStats; -/// Retrieves statistics from current state of the Allocator. -void vmaCalculateStats( - VmaAllocator allocator, - VmaStats* pStats); +/** \brief Retrieves statistics from current state of the Allocator. +This function is called "calculate" not "get" because it has to traverse all +internal data structures, so it may be quite slow. For faster but more brief statistics +suitable to be called every frame or every allocation, use vmaGetBudget(). + +Note that when using allocator from multiple threads, returned information may immediately +become outdated. +*/ +VMA_CALL_PRE void VMA_CALL_POST vmaCalculateStats( + VmaAllocator VMA_NOT_NULL allocator, + VmaStats* VMA_NOT_NULL pStats); + +/** \brief Statistics of current memory usage and available budget, in bytes, for specific memory heap. +*/ +typedef struct VmaBudget +{ + /** \brief Sum size of all `VkDeviceMemory` blocks allocated from particular heap, in bytes. + */ + VkDeviceSize blockBytes; + + /** \brief Sum size of all allocations created in particular heap, in bytes. + + Usually less or equal than `blockBytes`. + Difference `blockBytes - allocationBytes` is the amount of memory allocated but unused - + available for new allocations or wasted due to fragmentation. + + It might be greater than `blockBytes` if there are some allocations in lost state, as they account + to this value as well. + */ + VkDeviceSize allocationBytes; + + /** \brief Estimated current memory usage of the program, in bytes. + + Fetched from system using `VK_EXT_memory_budget` extension if enabled. + + It might be different than `blockBytes` (usually higher) due to additional implicit objects + also occupying the memory, like swapchain, pipelines, descriptor heaps, command buffers, or + `VkDeviceMemory` blocks allocated outside of this library, if any. + */ + VkDeviceSize usage; + + /** \brief Estimated amount of memory available to the program, in bytes. + + Fetched from system using `VK_EXT_memory_budget` extension if enabled. + + It might be different (most probably smaller) than `VkMemoryHeap::size[heapIndex]` due to factors + external to the program, like other programs also consuming system resources. + Difference `budget - usage` is the amount of additional memory that can probably + be allocated without problems. Exceeding the budget may result in various problems. + */ + VkDeviceSize budget; +} VmaBudget; + +/** \brief Retrieves information about current memory budget for all memory heaps. + +\param allocator +\param[out] pBudget Must point to array with number of elements at least equal to number of memory heaps in physical device used. + +This function is called "get" not "calculate" because it is very fast, suitable to be called +every frame or every allocation. For more detailed statistics use vmaCalculateStats(). + +Note that when using allocator from multiple threads, returned information may immediately +become outdated. +*/ +VMA_CALL_PRE void VMA_CALL_POST vmaGetBudget( + VmaAllocator VMA_NOT_NULL allocator, + VmaBudget* VMA_NOT_NULL pBudget); + +#ifndef VMA_STATS_STRING_ENABLED #define VMA_STATS_STRING_ENABLED 1 +#endif #if VMA_STATS_STRING_ENABLED /// Builds and returns statistics as string in JSON format. -/** @param[out] ppStatsString Must be freed using vmaFreeStatsString() function. +/** +@param allocator +@param[out] ppStatsString Must be freed using vmaFreeStatsString() function. +@param detailedMap */ -void vmaBuildStatsString( - VmaAllocator allocator, - char** ppStatsString, +VMA_CALL_PRE void VMA_CALL_POST vmaBuildStatsString( + VmaAllocator VMA_NOT_NULL allocator, + char* VMA_NULLABLE * VMA_NOT_NULL ppStatsString, VkBool32 detailedMap); -void vmaFreeStatsString( - VmaAllocator allocator, - char* pStatsString); +VMA_CALL_PRE void VMA_CALL_POST vmaFreeStatsString( + VmaAllocator VMA_NOT_NULL allocator, + char* VMA_NULLABLE pStatsString); #endif // #if VMA_STATS_STRING_ENABLED @@ -1359,11 +816,11 @@ typedef enum VmaMemoryUsage It is roughly equivalent of `D3D12_HEAP_TYPE_DEFAULT`. Usage: - + - Resources written and read by device, e.g. images used as attachments. - Resources transferred from host once (immutable) or infrequently and read by device multiple times, e.g. textures to be sampled, vertex buffers, uniform - (constant) buffers, and majority of other types of resources used by device. + (constant) buffers, and majority of other types of resources used on GPU. Allocation may still end up in `HOST_VISIBLE` memory on some implementations. In such case, you are free to map it. @@ -1372,9 +829,9 @@ typedef enum VmaMemoryUsage VMA_MEMORY_USAGE_GPU_ONLY = 1, /** Memory will be mappable on host. It usually means CPU (system) memory. - Resources created in this pool may still be accessible to the device, but access to them can be slower. Guarantees to be `HOST_VISIBLE` and `HOST_COHERENT`. - CPU read may be uncached. + CPU access is typically uncached. Writes may be write-combined. + Resources created in this pool may still be accessible to the device, but access to them can be slow. It is roughly equivalent of `D3D12_HEAP_TYPE_UPLOAD`. Usage: Staging copy of resources used as transfer source. @@ -1382,9 +839,9 @@ typedef enum VmaMemoryUsage VMA_MEMORY_USAGE_CPU_ONLY = 2, /** Memory that is both mappable on host (guarantees to be `HOST_VISIBLE`) and preferably fast to access by GPU. - CPU reads may be uncached and very slow. + CPU access is typically uncached. Writes may be write-combined. - Usage: Resources written frequently by host (dynamic), read by device. E.g. textures, vertex buffers, uniform buffers updated every frame or every draw call. + Usage: Resources written frequently by host (dynamic), read by device. E.g. textures (with LINEAR layout), vertex buffers, uniform buffers updated every frame or every draw call. */ VMA_MEMORY_USAGE_CPU_TO_GPU = 3, /** Memory mappable on host (guarantees to be `HOST_VISIBLE`) and cached. @@ -1396,39 +853,49 @@ typedef enum VmaMemoryUsage - Any resources read or accessed randomly on host, e.g. CPU-side copy of vertex buffer used as source of transfer, but also used for collision detection. */ VMA_MEMORY_USAGE_GPU_TO_CPU = 4, + /** CPU memory - memory that is preferably not `DEVICE_LOCAL`, but also not guaranteed to be `HOST_VISIBLE`. + + Usage: Staging copy of resources moved from GPU memory to CPU memory as part + of custom paging/residency mechanism, to be moved back to GPU memory when needed. + */ + VMA_MEMORY_USAGE_CPU_COPY = 5, + /** Lazily allocated GPU memory having `VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT`. + Exists mostly on mobile platforms. Using it on desktop PC or other GPUs with no such memory type present will fail the allocation. + + Usage: Memory for transient attachment images (color attachments, depth attachments etc.), created with `VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT`. + + Allocations with this usage are always created as dedicated - it implies #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT. + */ + VMA_MEMORY_USAGE_GPU_LAZILY_ALLOCATED = 6, + VMA_MEMORY_USAGE_MAX_ENUM = 0x7FFFFFFF } VmaMemoryUsage; /// Flags to be passed as VmaAllocationCreateInfo::flags. typedef enum VmaAllocationCreateFlagBits { /** \brief Set this flag if the allocation should have its own memory block. - + Use it for special, big resources, like fullscreen images used as attachments. - - This flag must also be used for host visible resources that you want to map - simultaneously because otherwise they might end up as regions of the same - `VkDeviceMemory`, while mapping same `VkDeviceMemory` multiple times - simultaneously is illegal. You should not use this flag if VmaAllocationCreateInfo::pool is not null. */ VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT = 0x00000001, /** \brief Set this flag to only try to allocate from existing `VkDeviceMemory` blocks and never create new such block. - + If new allocation cannot be placed in any of the existing blocks, allocation fails with `VK_ERROR_OUT_OF_DEVICE_MEMORY` error. - + You should not use #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT and #VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT at the same time. It makes no sense. - + If VmaAllocationCreateInfo::pool is not null, this flag is implied and ignored. */ VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT = 0x00000002, /** \brief Set this flag to use a memory that will be persistently mapped and retrieve pointer to it. - + Pointer to mapped memory will be returned through VmaAllocationInfo::pMappedData. - Is it valid to use this flag for allocation made from memory type that is not + It is valid to use this flag for allocation made from memory type that is not `HOST_VISIBLE`. This flag is then ignored and memory is not mapped. This is useful if you need an allocation that is efficient to use on GPU (`DEVICE_LOCAL`) and still want to map it directly if possible on platforms that @@ -1463,6 +930,54 @@ typedef enum VmaAllocationCreateFlagBits { freed together with the allocation. It is also used in vmaBuildStatsString(). */ VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT = 0x00000020, + /** Allocation will be created from upper stack in a double stack pool. + + This flag is only allowed for custom pools created with #VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT flag. + */ + VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT = 0x00000040, + /** Create both buffer/image and allocation, but don't bind them together. + It is useful when you want to bind yourself to do some more advanced binding, e.g. using some extensions. + The flag is meaningful only with functions that bind by default: vmaCreateBuffer(), vmaCreateImage(). + Otherwise it is ignored. + */ + VMA_ALLOCATION_CREATE_DONT_BIND_BIT = 0x00000080, + /** Create allocation only if additional device memory required for it, if any, won't exceed + memory budget. Otherwise return `VK_ERROR_OUT_OF_DEVICE_MEMORY`. + */ + VMA_ALLOCATION_CREATE_WITHIN_BUDGET_BIT = 0x00000100, + + /** Allocation strategy that chooses smallest possible free range for the + allocation. + */ + VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT = 0x00010000, + /** Allocation strategy that chooses biggest possible free range for the + allocation. + */ + VMA_ALLOCATION_CREATE_STRATEGY_WORST_FIT_BIT = 0x00020000, + /** Allocation strategy that chooses first suitable free range for the + allocation. + + "First" doesn't necessarily means the one with smallest offset in memory, + but rather the one that is easiest and fastest to find. + */ + VMA_ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT = 0x00040000, + + /** Allocation strategy that tries to minimize memory usage. + */ + VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT = VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT, + /** Allocation strategy that tries to minimize allocation time. + */ + VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT = VMA_ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT, + /** Allocation strategy that tries to minimize memory fragmentation. + */ + VMA_ALLOCATION_CREATE_STRATEGY_MIN_FRAGMENTATION_BIT = VMA_ALLOCATION_CREATE_STRATEGY_WORST_FIT_BIT, + + /** A bit mask to extract only `STRATEGY` bits from entire set of flags. + */ + VMA_ALLOCATION_CREATE_STRATEGY_MASK = + VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT | + VMA_ALLOCATION_CREATE_STRATEGY_WORST_FIT_BIT | + VMA_ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT, VMA_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF } VmaAllocationCreateFlagBits; @@ -1473,19 +988,19 @@ typedef struct VmaAllocationCreateInfo /// Use #VmaAllocationCreateFlagBits enum. VmaAllocationCreateFlags flags; /** \brief Intended usage of memory. - + You can leave #VMA_MEMORY_USAGE_UNKNOWN if you specify memory requirements in other way. \n If `pool` is not null, this member is ignored. */ VmaMemoryUsage usage; /** \brief Flags that must be set in a Memory Type chosen for an allocation. - + Leave 0 if you specify memory requirements in other way. \n If `pool` is not null, this member is ignored.*/ VkMemoryPropertyFlags requiredFlags; /** \brief Flags that preferably should be set in a memory type chosen for an allocation. - - Set to 0 if no additional flags are prefered. \n + + Set to 0 if no additional flags are preferred. \n If `pool` is not null, this member is ignored. */ VkMemoryPropertyFlags preferredFlags; /** \brief Bitmask containing one bit set for every memory type acceptable for this allocation. @@ -1501,14 +1016,21 @@ typedef struct VmaAllocationCreateInfo Leave `VK_NULL_HANDLE` to allocate from default pool. If not null, members: `usage`, `requiredFlags`, `preferredFlags`, `memoryTypeBits` are ignored. */ - VmaPool pool; + VmaPool VMA_NULLABLE pool; /** \brief Custom general-purpose pointer that will be stored in #VmaAllocation, can be read as VmaAllocationInfo::pUserData and changed using vmaSetAllocationUserData(). - + If #VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT is used, it must be either null or pointer to a null-terminated string. The string will be then copied to internal buffer, so it doesn't need to be valid after allocation call. */ - void* pUserData; + void* VMA_NULLABLE pUserData; + /** \brief A floating-point value between 0 and 1, indicating the priority of the allocation relative to other memory allocations. + + It is used only when #VMA_ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT flag was used during creation of the #VmaAllocator object + and this allocation ends up as dedicated or is explicitly forced as dedicated using #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT. + Otherwise, it has the priority of a memory block where it is placed and this variable is ignored. + */ + float priority; } VmaAllocationCreateInfo; /** @@ -1527,11 +1049,11 @@ device doesn't support any memory type with requested features for the specific type of resource you want to use it for. Please check parameters of your resource, like image layout (OPTIMAL versus LINEAR) or mip level count. */ -VkResult vmaFindMemoryTypeIndex( - VmaAllocator allocator, +VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndex( + VmaAllocator VMA_NOT_NULL allocator, uint32_t memoryTypeBits, - const VmaAllocationCreateInfo* pAllocationCreateInfo, - uint32_t* pMemoryTypeIndex); + const VmaAllocationCreateInfo* VMA_NOT_NULL pAllocationCreateInfo, + uint32_t* VMA_NOT_NULL pMemoryTypeIndex); /** \brief Helps to find memoryTypeIndex, given VkBufferCreateInfo and VmaAllocationCreateInfo. @@ -1545,11 +1067,11 @@ It is just a convenience function, equivalent to calling: - `vmaFindMemoryTypeIndex` - `vkDestroyBuffer` */ -VkResult vmaFindMemoryTypeIndexForBufferInfo( - VmaAllocator allocator, - const VkBufferCreateInfo* pBufferCreateInfo, - const VmaAllocationCreateInfo* pAllocationCreateInfo, - uint32_t* pMemoryTypeIndex); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndexForBufferInfo( + VmaAllocator VMA_NOT_NULL allocator, + const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo, + const VmaAllocationCreateInfo* VMA_NOT_NULL pAllocationCreateInfo, + uint32_t* VMA_NOT_NULL pMemoryTypeIndex); /** \brief Helps to find memoryTypeIndex, given VkImageCreateInfo and VmaAllocationCreateInfo. @@ -1563,17 +1085,17 @@ It is just a convenience function, equivalent to calling: - `vmaFindMemoryTypeIndex` - `vkDestroyImage` */ -VkResult vmaFindMemoryTypeIndexForImageInfo( - VmaAllocator allocator, - const VkImageCreateInfo* pImageCreateInfo, - const VmaAllocationCreateInfo* pAllocationCreateInfo, - uint32_t* pMemoryTypeIndex); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndexForImageInfo( + VmaAllocator VMA_NOT_NULL allocator, + const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo, + const VmaAllocationCreateInfo* VMA_NOT_NULL pAllocationCreateInfo, + uint32_t* VMA_NOT_NULL pMemoryTypeIndex); /// Flags to be passed as VmaPoolCreateInfo::flags. typedef enum VmaPoolCreateFlagBits { /** \brief Use this flag if you always allocate only buffers and linear images or only optimal images out of this pool and so Buffer-Image Granularity can be ignored. - This is na optional optimization flag. + This is an optional optimization flag. If you always allocate using vmaCreateBuffer(), vmaCreateImage(), vmaAllocateMemoryForBuffer(), then you don't need to use it because allocator @@ -1586,10 +1108,44 @@ typedef enum VmaPoolCreateFlagBits { (wasted memory). In that case, if you can make sure you always allocate only buffers and linear images or only optimal images out of this pool, use this flag to make allocator disregard Buffer-Image Granularity and so make allocations - more optimal. + faster and more optimal. */ VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT = 0x00000002, + /** \brief Enables alternative, linear allocation algorithm in this pool. + + Specify this flag to enable linear allocation algorithm, which always creates + new allocations after last one and doesn't reuse space from allocations freed in + between. It trades memory consumption for simplified algorithm and data + structure, which has better performance and uses less memory for metadata. + + By using this flag, you can achieve behavior of free-at-once, stack, + ring buffer, and double stack. For details, see documentation chapter + \ref linear_algorithm. + + When using this flag, you must specify VmaPoolCreateInfo::maxBlockCount == 1 (or 0 for default). + + For more details, see [Linear allocation algorithm](@ref linear_algorithm). + */ + VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT = 0x00000004, + + /** \brief Enables alternative, buddy allocation algorithm in this pool. + + It operates on a tree of blocks, each having size that is a power of two and + a half of its parent's size. Comparing to default algorithm, this one provides + faster allocation and deallocation and decreased external fragmentation, + at the expense of more memory wasted (internal fragmentation). + + For more details, see [Buddy allocation algorithm](@ref buddy_algorithm). + */ + VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT = 0x00000008, + + /** Bit mask to extract only `ALGORITHM` bits from entire set of flags. + */ + VMA_POOL_CREATE_ALGORITHM_MASK = + VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT | + VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT, + VMA_POOL_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF } VmaPoolCreateFlagBits; typedef VkFlags VmaPoolCreateFlags; @@ -1603,22 +1159,26 @@ typedef struct VmaPoolCreateInfo { /** \brief Use combination of #VmaPoolCreateFlagBits. */ VmaPoolCreateFlags flags; - /** \brief Size of a single `VkDeviceMemory` block to be allocated as part of this pool, in bytes. + /** \brief Size of a single `VkDeviceMemory` block to be allocated as part of this pool, in bytes. Optional. - Optional. Leave 0 to use default. + Specify nonzero to set explicit, constant size of memory blocks used by this + pool. + + Leave 0 to use default and let the library manage block sizes automatically. + Sizes of particular blocks may vary. */ VkDeviceSize blockSize; /** \brief Minimum number of blocks to be always allocated in this pool, even if they stay empty. - Set to 0 to have no preallocated blocks and let the pool be completely empty. + Set to 0 to have no preallocated blocks and allow the pool be completely empty. */ size_t minBlockCount; /** \brief Maximum number of blocks that can be allocated in this pool. Optional. - Optional. Set to 0 to use `SIZE_MAX`, which means no limit. - - Set to same value as minBlockCount to have fixed amount of memory allocated - throuout whole lifetime of this pool. + Set to 0 to use default, which is `SIZE_MAX`, which means no limit. + + Set to same value as VmaPoolCreateInfo::minBlockCount to have fixed amount of memory allocated + throughout whole lifetime of this pool. */ size_t maxBlockCount; /** \brief Maximum number of additional frames that are in use at the same time as current frame. @@ -1635,6 +1195,29 @@ typedef struct VmaPoolCreateInfo { become lost, set this value to 0. */ uint32_t frameInUseCount; + /** \brief A floating-point value between 0 and 1, indicating the priority of the allocations in this pool relative to other memory allocations. + + It is used only when #VMA_ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT flag was used during creation of the #VmaAllocator object. + Otherwise, this variable is ignored. + */ + float priority; + /** \brief Additional minimum alignment to be used for all allocations created from this pool. Can be 0. + + Leave 0 (default) not to impose any additional alignment. If not 0, it must be a power of two. + It can be useful in cases where alignment returned by Vulkan by functions like `vkGetBufferMemoryRequirements` is not enough, + e.g. when doing interop with OpenGL. + */ + VkDeviceSize minAllocationAlignment; + /** \brief Additional `pNext` chain to be attached to `VkMemoryAllocateInfo` used for every allocation made by this pool. Optional. + + Optional, can be null. If not null, it must point to a `pNext` chain of structures that can be attached to `VkMemoryAllocateInfo`. + It can be useful for special needs such as adding `VkExportMemoryAllocateInfoKHR`. + Structures pointed by this member must remain alive and unchanged for the whole lifetime of the custom pool. + + Please note that some structures, e.g. `VkMemoryPriorityAllocateInfoEXT`, `VkMemoryDedicatedAllocateInfoKHR`, + can be attached automatically by this library when using other, more convenient of its features. + */ + void* VMA_NULLABLE pMemoryAllocateNext; } VmaPoolCreateInfo; /** \brief Describes parameter of existing #VmaPool. @@ -1652,13 +1235,16 @@ typedef struct VmaPoolStats { /** \brief Number of continuous memory ranges in the pool not used by any #VmaAllocation. */ size_t unusedRangeCount; - /** \brief Size of the largest continuous free memory region. + /** \brief Size of the largest continuous free memory region available for new allocation. Making a new allocation of that size is not guaranteed to succeed because of possible additional margin required to respect alignment and buffer/image granularity. */ VkDeviceSize unusedRangeSizeMax; + /** \brief Number of `VkDeviceMemory` blocks allocated for this pool. + */ + size_t blockCount; } VmaPoolStats; /** \brief Allocates Vulkan device memory and creates #VmaPool object. @@ -1667,16 +1253,16 @@ typedef struct VmaPoolStats { @param pCreateInfo Parameters of pool to create. @param[out] pPool Handle to created pool. */ -VkResult vmaCreatePool( - VmaAllocator allocator, - const VmaPoolCreateInfo* pCreateInfo, - VmaPool* pPool); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreatePool( + VmaAllocator VMA_NOT_NULL allocator, + const VmaPoolCreateInfo* VMA_NOT_NULL pCreateInfo, + VmaPool VMA_NULLABLE * VMA_NOT_NULL pPool); /** \brief Destroys #VmaPool object and frees Vulkan device memory. */ -void vmaDestroyPool( - VmaAllocator allocator, - VmaPool pool); +VMA_CALL_PRE void VMA_CALL_POST vmaDestroyPool( + VmaAllocator VMA_NOT_NULL allocator, + VmaPool VMA_NULLABLE pool); /** \brief Retrieves statistics of existing #VmaPool object. @@ -1684,10 +1270,10 @@ void vmaDestroyPool( @param pool Pool object. @param[out] pPoolStats Statistics of specified pool. */ -void vmaGetPoolStats( - VmaAllocator allocator, - VmaPool pool, - VmaPoolStats* pPoolStats); +VMA_CALL_PRE void VMA_CALL_POST vmaGetPoolStats( + VmaAllocator VMA_NOT_NULL allocator, + VmaPool VMA_NOT_NULL pool, + VmaPoolStats* VMA_NOT_NULL pPoolStats); /** \brief Marks all allocations in given pool as lost if they are not used in current frame or VmaPoolCreateInfo::frameInUseCount back from now. @@ -1695,10 +1281,47 @@ void vmaGetPoolStats( @param pool Pool. @param[out] pLostAllocationCount Number of allocations marked as lost. Optional - pass null if you don't need this information. */ -void vmaMakePoolAllocationsLost( - VmaAllocator allocator, - VmaPool pool, - size_t* pLostAllocationCount); +VMA_CALL_PRE void VMA_CALL_POST vmaMakePoolAllocationsLost( + VmaAllocator VMA_NOT_NULL allocator, + VmaPool VMA_NOT_NULL pool, + size_t* VMA_NULLABLE pLostAllocationCount); + +/** \brief Checks magic number in margins around all allocations in given memory pool in search for corruptions. + +Corruption detection is enabled only when `VMA_DEBUG_DETECT_CORRUPTION` macro is defined to nonzero, +`VMA_DEBUG_MARGIN` is defined to nonzero and the pool is created in memory type that is +`HOST_VISIBLE` and `HOST_COHERENT`. For more information, see [Corruption detection](@ref debugging_memory_usage_corruption_detection). + +Possible return values: + +- `VK_ERROR_FEATURE_NOT_PRESENT` - corruption detection is not enabled for specified pool. +- `VK_SUCCESS` - corruption detection has been performed and succeeded. +- `VK_ERROR_UNKNOWN` - corruption detection has been performed and found memory corruptions around one of the allocations. + `VMA_ASSERT` is also fired in that case. +- Other value: Error returned by Vulkan, e.g. memory mapping failure. +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCheckPoolCorruption(VmaAllocator VMA_NOT_NULL allocator, VmaPool VMA_NOT_NULL pool); + +/** \brief Retrieves name of a custom pool. + +After the call `ppName` is either null or points to an internally-owned null-terminated string +containing name of the pool that was previously set. The pointer becomes invalid when the pool is +destroyed or its name is changed using vmaSetPoolName(). +*/ +VMA_CALL_PRE void VMA_CALL_POST vmaGetPoolName( + VmaAllocator VMA_NOT_NULL allocator, + VmaPool VMA_NOT_NULL pool, + const char* VMA_NULLABLE * VMA_NOT_NULL ppName); + +/** \brief Sets name of a custom pool. + +`pName` can be either null or pointer to a null-terminated string with new name for the pool. +Function makes internal copy of the string, so it can be changed or freed immediately after this call. +*/ +VMA_CALL_PRE void VMA_CALL_POST vmaSetPoolName( + VmaAllocator VMA_NOT_NULL allocator, + VmaPool VMA_NOT_NULL pool, + const char* VMA_NULLABLE pName); /** \struct VmaAllocation \brief Represents single memory allocation. @@ -1730,20 +1353,25 @@ VK_DEFINE_HANDLE(VmaAllocation) */ typedef struct VmaAllocationInfo { /** \brief Memory type index that this allocation was allocated from. - + It never changes. */ uint32_t memoryType; /** \brief Handle to Vulkan memory object. Same memory object can be shared by multiple allocations. - + It can change after call to vmaDefragment() if this allocation is passed to the function, or if allocation is lost. If the allocation is lost, it is equal to `VK_NULL_HANDLE`. */ - VkDeviceMemory deviceMemory; - /** \brief Offset into deviceMemory object to the beginning of this allocation, in bytes. (deviceMemory, offset) pair is unique to this allocation. + VkDeviceMemory VMA_NULLABLE_NON_DISPATCHABLE deviceMemory; + /** \brief Offset in `VkDeviceMemory` object to the beginning of this allocation, in bytes. `(deviceMemory, offset)` pair is unique to this allocation. + + You usually don't need to use this offset. If you create a buffer or an image together with the allocation using e.g. function + vmaCreateBuffer(), vmaCreateImage(), functions that operate on these resources refer to the beginning of the buffer or image, + not entire device memory block. Functions like vmaMapMemory(), vmaBindBufferMemory() also refer to the beginning of the allocation + and apply this offset automatically. It can change after call to vmaDefragment() if this allocation is passed to the function, or if allocation is lost. */ @@ -1751,70 +1379,127 @@ typedef struct VmaAllocationInfo { /** \brief Size of this allocation, in bytes. It never changes, unless allocation is lost. + + \note Allocation size returned in this variable may be greater than the size + requested for the resource e.g. as `VkBufferCreateInfo::size`. Whole size of the + allocation is accessible for operations on memory e.g. using a pointer after + mapping with vmaMapMemory(), but operations on the resource e.g. using + `vkCmdCopyBuffer` must be limited to the size of the resource. */ VkDeviceSize size; /** \brief Pointer to the beginning of this allocation as mapped data. If the allocation hasn't been mapped using vmaMapMemory() and hasn't been - created with #VMA_ALLOCATION_CREATE_MAPPED_BIT flag, this value null. + created with #VMA_ALLOCATION_CREATE_MAPPED_BIT flag, this value is null. It can change after call to vmaMapMemory(), vmaUnmapMemory(). It can also change after call to vmaDefragment() if this allocation is passed to the function. */ - void* pMappedData; + void* VMA_NULLABLE pMappedData; /** \brief Custom general-purpose pointer that was passed as VmaAllocationCreateInfo::pUserData or set using vmaSetAllocationUserData(). It can change after call to vmaSetAllocationUserData() for this allocation. */ - void* pUserData; + void* VMA_NULLABLE pUserData; } VmaAllocationInfo; /** \brief General purpose memory allocation. +@param allocator +@param pVkMemoryRequirements +@param pCreateInfo @param[out] pAllocation Handle to allocated memory. @param[out] pAllocationInfo Optional. Information about allocated memory. It can be later fetched using function vmaGetAllocationInfo(). -You should free the memory using vmaFreeMemory(). +You should free the memory using vmaFreeMemory() or vmaFreeMemoryPages(). It is recommended to use vmaAllocateMemoryForBuffer(), vmaAllocateMemoryForImage(), vmaCreateBuffer(), vmaCreateImage() instead whenever possible. */ -VkResult vmaAllocateMemory( - VmaAllocator allocator, - const VkMemoryRequirements* pVkMemoryRequirements, - const VmaAllocationCreateInfo* pCreateInfo, - VmaAllocation* pAllocation, - VmaAllocationInfo* pAllocationInfo); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemory( + VmaAllocator VMA_NOT_NULL allocator, + const VkMemoryRequirements* VMA_NOT_NULL pVkMemoryRequirements, + const VmaAllocationCreateInfo* VMA_NOT_NULL pCreateInfo, + VmaAllocation VMA_NULLABLE * VMA_NOT_NULL pAllocation, + VmaAllocationInfo* VMA_NULLABLE pAllocationInfo); + +/** \brief General purpose memory allocation for multiple allocation objects at once. + +@param allocator Allocator object. +@param pVkMemoryRequirements Memory requirements for each allocation. +@param pCreateInfo Creation parameters for each alloction. +@param allocationCount Number of allocations to make. +@param[out] pAllocations Pointer to array that will be filled with handles to created allocations. +@param[out] pAllocationInfo Optional. Pointer to array that will be filled with parameters of created allocations. + +You should free the memory using vmaFreeMemory() or vmaFreeMemoryPages(). + +Word "pages" is just a suggestion to use this function to allocate pieces of memory needed for sparse binding. +It is just a general purpose allocation function able to make multiple allocations at once. +It may be internally optimized to be more efficient than calling vmaAllocateMemory() `allocationCount` times. + +All allocations are made using same parameters. All of them are created out of the same memory pool and type. +If any allocation fails, all allocations already made within this function call are also freed, so that when +returned result is not `VK_SUCCESS`, `pAllocation` array is always entirely filled with `VK_NULL_HANDLE`. +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemoryPages( + VmaAllocator VMA_NOT_NULL allocator, + const VkMemoryRequirements* VMA_NOT_NULL VMA_LEN_IF_NOT_NULL(allocationCount) pVkMemoryRequirements, + const VmaAllocationCreateInfo* VMA_NOT_NULL VMA_LEN_IF_NOT_NULL(allocationCount) pCreateInfo, + size_t allocationCount, + VmaAllocation VMA_NULLABLE * VMA_NOT_NULL VMA_LEN_IF_NOT_NULL(allocationCount) pAllocations, + VmaAllocationInfo* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) pAllocationInfo); /** +@param allocator +@param buffer +@param pCreateInfo @param[out] pAllocation Handle to allocated memory. @param[out] pAllocationInfo Optional. Information about allocated memory. It can be later fetched using function vmaGetAllocationInfo(). You should free the memory using vmaFreeMemory(). */ -VkResult vmaAllocateMemoryForBuffer( - VmaAllocator allocator, - VkBuffer buffer, - const VmaAllocationCreateInfo* pCreateInfo, - VmaAllocation* pAllocation, - VmaAllocationInfo* pAllocationInfo); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemoryForBuffer( + VmaAllocator VMA_NOT_NULL allocator, + VkBuffer VMA_NOT_NULL_NON_DISPATCHABLE buffer, + const VmaAllocationCreateInfo* VMA_NOT_NULL pCreateInfo, + VmaAllocation VMA_NULLABLE * VMA_NOT_NULL pAllocation, + VmaAllocationInfo* VMA_NULLABLE pAllocationInfo); /// Function similar to vmaAllocateMemoryForBuffer(). -VkResult vmaAllocateMemoryForImage( - VmaAllocator allocator, - VkImage image, - const VmaAllocationCreateInfo* pCreateInfo, - VmaAllocation* pAllocation, - VmaAllocationInfo* pAllocationInfo); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemoryForImage( + VmaAllocator VMA_NOT_NULL allocator, + VkImage VMA_NOT_NULL_NON_DISPATCHABLE image, + const VmaAllocationCreateInfo* VMA_NOT_NULL pCreateInfo, + VmaAllocation VMA_NULLABLE * VMA_NOT_NULL pAllocation, + VmaAllocationInfo* VMA_NULLABLE pAllocationInfo); -/// Frees memory previously allocated using vmaAllocateMemory(), vmaAllocateMemoryForBuffer(), or vmaAllocateMemoryForImage(). -void vmaFreeMemory( - VmaAllocator allocator, - VmaAllocation allocation); +/** \brief Frees memory previously allocated using vmaAllocateMemory(), vmaAllocateMemoryForBuffer(), or vmaAllocateMemoryForImage(). + +Passing `VK_NULL_HANDLE` as `allocation` is valid. Such function call is just skipped. +*/ +VMA_CALL_PRE void VMA_CALL_POST vmaFreeMemory( + VmaAllocator VMA_NOT_NULL allocator, + const VmaAllocation VMA_NULLABLE allocation); + +/** \brief Frees memory and destroys multiple allocations. + +Word "pages" is just a suggestion to use this function to free pieces of memory used for sparse binding. +It is just a general purpose function to free memory and destroy allocations made using e.g. vmaAllocateMemory(), +vmaAllocateMemoryPages() and other functions. +It may be internally optimized to be more efficient than calling vmaFreeMemory() `allocationCount` times. + +Allocations in `pAllocations` array can come from any memory pools and types. +Passing `VK_NULL_HANDLE` as elements of `pAllocations` array is valid. Such entries are just skipped. +*/ +VMA_CALL_PRE void VMA_CALL_POST vmaFreeMemoryPages( + VmaAllocator VMA_NOT_NULL allocator, + size_t allocationCount, + const VmaAllocation VMA_NULLABLE * VMA_NOT_NULL VMA_LEN_IF_NOT_NULL(allocationCount) pAllocations); /** \brief Returns current information about specified allocation and atomically marks it as used in current frame. -Current paramters of given allocation are returned in `pAllocationInfo`. +Current paramteres of given allocation are returned in `pAllocationInfo`. This function also atomically "touches" allocation - marks it as used in current frame, just like vmaTouchAllocation(). @@ -1828,15 +1513,15 @@ you can avoid calling it too often. (e.g. due to defragmentation or allocation becoming lost). - If you just want to check if allocation is not lost, vmaTouchAllocation() will work faster. */ -void vmaGetAllocationInfo( - VmaAllocator allocator, - VmaAllocation allocation, - VmaAllocationInfo* pAllocationInfo); +VMA_CALL_PRE void VMA_CALL_POST vmaGetAllocationInfo( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + VmaAllocationInfo* VMA_NOT_NULL pAllocationInfo); /** \brief Returns `VK_TRUE` if allocation is not lost and atomically marks it as used in current frame. If the allocation has been created with #VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT flag, -this function returns `VK_TRUE` if it's not in lost state, so it can still be used. +this function returns `VK_TRUE` if it is not in lost state, so it can still be used. It then also atomically "touches" the allocation - marks it as used in current frame, so that you can be sure it won't become lost in current frame or next `frameInUseCount` frames. @@ -1847,9 +1532,9 @@ Lost allocation and the buffer/image still need to be destroyed. If the allocation has been created without #VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT flag, this function always returns `VK_TRUE`. */ -VkBool32 vmaTouchAllocation( - VmaAllocator allocator, - VmaAllocation allocation); +VMA_CALL_PRE VkBool32 VMA_CALL_POST vmaTouchAllocation( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation); /** \brief Sets pUserData in given allocation to new value. @@ -1864,10 +1549,10 @@ If the flag was not used, the value of pointer `pUserData` is just copied to allocation's `pUserData`. It is opaque, so you can use it however you want - e.g. as a pointer, ordinal number or some handle to you own data. */ -void vmaSetAllocationUserData( - VmaAllocator allocator, - VmaAllocation allocation, - void* pUserData); +VMA_CALL_PRE void VMA_CALL_POST vmaSetAllocationUserData( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + void* VMA_NULLABLE pUserData); /** \brief Creates new allocation that is in lost state from the beginning. @@ -1879,16 +1564,16 @@ Returned allocation is not tied to any specific memory pool or memory type and not bound to any image or buffer. It has size = 0. It cannot be turned into a real, non-empty allocation. */ -void vmaCreateLostAllocation( - VmaAllocator allocator, - VmaAllocation* pAllocation); +VMA_CALL_PRE void VMA_CALL_POST vmaCreateLostAllocation( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NULLABLE * VMA_NOT_NULL pAllocation); /** \brief Maps memory represented by given allocation and returns pointer to it. Maps memory represented by given allocation to make it accessible to CPU code. When succeeded, `*ppData` contains pointer to first byte of this memory. If the allocation is part of bigger `VkDeviceMemory` block, the pointer is -correctly offseted to the beginning of region assigned to this particular +correctly offsetted to the beginning of region assigned to this particular allocation. Mapping is internally reference-counted and synchronized, so despite raw Vulkan @@ -1916,24 +1601,256 @@ This function fails when used on allocation made in memory type that is not This function always fails when called for allocation that was created with #VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT flag. Such allocations cannot be mapped. + +This function doesn't automatically flush or invalidate caches. +If the allocation is made from a memory types that is not `HOST_COHERENT`, +you also need to use vmaInvalidateAllocation() / vmaFlushAllocation(), as required by Vulkan specification. */ -VkResult vmaMapMemory( - VmaAllocator allocator, - VmaAllocation allocation, - void** ppData); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaMapMemory( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + void* VMA_NULLABLE * VMA_NOT_NULL ppData); /** \brief Unmaps memory represented by given allocation, mapped previously using vmaMapMemory(). For details, see description of vmaMapMemory(). -*/ -void vmaUnmapMemory( - VmaAllocator allocator, - VmaAllocation allocation); -/** \brief Optional configuration parameters to be passed to function vmaDefragment(). */ +This function doesn't automatically flush or invalidate caches. +If the allocation is made from a memory types that is not `HOST_COHERENT`, +you also need to use vmaInvalidateAllocation() / vmaFlushAllocation(), as required by Vulkan specification. +*/ +VMA_CALL_PRE void VMA_CALL_POST vmaUnmapMemory( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation); + +/** \brief Flushes memory of given allocation. + +Calls `vkFlushMappedMemoryRanges()` for memory associated with given range of given allocation. +It needs to be called after writing to a mapped memory for memory types that are not `HOST_COHERENT`. +Unmap operation doesn't do that automatically. + +- `offset` must be relative to the beginning of allocation. +- `size` can be `VK_WHOLE_SIZE`. It means all memory from `offset` the the end of given allocation. +- `offset` and `size` don't have to be aligned. + They are internally rounded down/up to multiply of `nonCoherentAtomSize`. +- If `size` is 0, this call is ignored. +- If memory type that the `allocation` belongs to is not `HOST_VISIBLE` or it is `HOST_COHERENT`, + this call is ignored. + +Warning! `offset` and `size` are relative to the contents of given `allocation`. +If you mean whole allocation, you can pass 0 and `VK_WHOLE_SIZE`, respectively. +Do not pass allocation's offset as `offset`!!! + +This function returns the `VkResult` from `vkFlushMappedMemoryRanges` if it is +called, otherwise `VK_SUCCESS`. +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaFlushAllocation( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + VkDeviceSize offset, + VkDeviceSize size); + +/** \brief Invalidates memory of given allocation. + +Calls `vkInvalidateMappedMemoryRanges()` for memory associated with given range of given allocation. +It needs to be called before reading from a mapped memory for memory types that are not `HOST_COHERENT`. +Map operation doesn't do that automatically. + +- `offset` must be relative to the beginning of allocation. +- `size` can be `VK_WHOLE_SIZE`. It means all memory from `offset` the the end of given allocation. +- `offset` and `size` don't have to be aligned. + They are internally rounded down/up to multiply of `nonCoherentAtomSize`. +- If `size` is 0, this call is ignored. +- If memory type that the `allocation` belongs to is not `HOST_VISIBLE` or it is `HOST_COHERENT`, + this call is ignored. + +Warning! `offset` and `size` are relative to the contents of given `allocation`. +If you mean whole allocation, you can pass 0 and `VK_WHOLE_SIZE`, respectively. +Do not pass allocation's offset as `offset`!!! + +This function returns the `VkResult` from `vkInvalidateMappedMemoryRanges` if +it is called, otherwise `VK_SUCCESS`. +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaInvalidateAllocation( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + VkDeviceSize offset, + VkDeviceSize size); + +/** \brief Flushes memory of given set of allocations. + +Calls `vkFlushMappedMemoryRanges()` for memory associated with given ranges of given allocations. +For more information, see documentation of vmaFlushAllocation(). + +\param allocator +\param allocationCount +\param allocations +\param offsets If not null, it must point to an array of offsets of regions to flush, relative to the beginning of respective allocations. Null means all ofsets are zero. +\param sizes If not null, it must point to an array of sizes of regions to flush in respective allocations. Null means `VK_WHOLE_SIZE` for all allocations. + +This function returns the `VkResult` from `vkFlushMappedMemoryRanges` if it is +called, otherwise `VK_SUCCESS`. +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaFlushAllocations( + VmaAllocator VMA_NOT_NULL allocator, + uint32_t allocationCount, + const VmaAllocation VMA_NOT_NULL * VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) allocations, + const VkDeviceSize* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) offsets, + const VkDeviceSize* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) sizes); + +/** \brief Invalidates memory of given set of allocations. + +Calls `vkInvalidateMappedMemoryRanges()` for memory associated with given ranges of given allocations. +For more information, see documentation of vmaInvalidateAllocation(). + +\param allocator +\param allocationCount +\param allocations +\param offsets If not null, it must point to an array of offsets of regions to flush, relative to the beginning of respective allocations. Null means all ofsets are zero. +\param sizes If not null, it must point to an array of sizes of regions to flush in respective allocations. Null means `VK_WHOLE_SIZE` for all allocations. + +This function returns the `VkResult` from `vkInvalidateMappedMemoryRanges` if it is +called, otherwise `VK_SUCCESS`. +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaInvalidateAllocations( + VmaAllocator VMA_NOT_NULL allocator, + uint32_t allocationCount, + const VmaAllocation VMA_NOT_NULL * VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) allocations, + const VkDeviceSize* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) offsets, + const VkDeviceSize* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) sizes); + +/** \brief Checks magic number in margins around all allocations in given memory types (in both default and custom pools) in search for corruptions. + +@param allocator +@param memoryTypeBits Bit mask, where each bit set means that a memory type with that index should be checked. + +Corruption detection is enabled only when `VMA_DEBUG_DETECT_CORRUPTION` macro is defined to nonzero, +`VMA_DEBUG_MARGIN` is defined to nonzero and only for memory types that are +`HOST_VISIBLE` and `HOST_COHERENT`. For more information, see [Corruption detection](@ref debugging_memory_usage_corruption_detection). + +Possible return values: + +- `VK_ERROR_FEATURE_NOT_PRESENT` - corruption detection is not enabled for any of specified memory types. +- `VK_SUCCESS` - corruption detection has been performed and succeeded. +- `VK_ERROR_UNKNOWN` - corruption detection has been performed and found memory corruptions around one of the allocations. + `VMA_ASSERT` is also fired in that case. +- Other value: Error returned by Vulkan, e.g. memory mapping failure. +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCheckCorruption(VmaAllocator VMA_NOT_NULL allocator, uint32_t memoryTypeBits); + +/** \struct VmaDefragmentationContext +\brief Represents Opaque object that represents started defragmentation process. + +Fill structure #VmaDefragmentationInfo2 and call function vmaDefragmentationBegin() to create it. +Call function vmaDefragmentationEnd() to destroy it. +*/ +VK_DEFINE_HANDLE(VmaDefragmentationContext) + +/// Flags to be used in vmaDefragmentationBegin(). None at the moment. Reserved for future use. +typedef enum VmaDefragmentationFlagBits { + VMA_DEFRAGMENTATION_FLAG_INCREMENTAL = 0x1, + VMA_DEFRAGMENTATION_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF +} VmaDefragmentationFlagBits; +typedef VkFlags VmaDefragmentationFlags; + +/** \brief Parameters for defragmentation. + +To be used with function vmaDefragmentationBegin(). +*/ +typedef struct VmaDefragmentationInfo2 { + /** \brief Reserved for future use. Should be 0. + */ + VmaDefragmentationFlags flags; + /** \brief Number of allocations in `pAllocations` array. + */ + uint32_t allocationCount; + /** \brief Pointer to array of allocations that can be defragmented. + + The array should have `allocationCount` elements. + The array should not contain nulls. + Elements in the array should be unique - same allocation cannot occur twice. + It is safe to pass allocations that are in the lost state - they are ignored. + All allocations not present in this array are considered non-moveable during this defragmentation. + */ + const VmaAllocation VMA_NOT_NULL * VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) pAllocations; + /** \brief Optional, output. Pointer to array that will be filled with information whether the allocation at certain index has been changed during defragmentation. + + The array should have `allocationCount` elements. + You can pass null if you are not interested in this information. + */ + VkBool32* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) pAllocationsChanged; + /** \brief Numer of pools in `pPools` array. + */ + uint32_t poolCount; + /** \brief Either null or pointer to array of pools to be defragmented. + + All the allocations in the specified pools can be moved during defragmentation + and there is no way to check if they were really moved as in `pAllocationsChanged`, + so you must query all the allocations in all these pools for new `VkDeviceMemory` + and offset using vmaGetAllocationInfo() if you might need to recreate buffers + and images bound to them. + + The array should have `poolCount` elements. + The array should not contain nulls. + Elements in the array should be unique - same pool cannot occur twice. + + Using this array is equivalent to specifying all allocations from the pools in `pAllocations`. + It might be more efficient. + */ + const VmaPool VMA_NOT_NULL * VMA_NULLABLE VMA_LEN_IF_NOT_NULL(poolCount) pPools; + /** \brief Maximum total numbers of bytes that can be copied while moving allocations to different places using transfers on CPU side, like `memcpy()`, `memmove()`. + + `VK_WHOLE_SIZE` means no limit. + */ + VkDeviceSize maxCpuBytesToMove; + /** \brief Maximum number of allocations that can be moved to a different place using transfers on CPU side, like `memcpy()`, `memmove()`. + + `UINT32_MAX` means no limit. + */ + uint32_t maxCpuAllocationsToMove; + /** \brief Maximum total numbers of bytes that can be copied while moving allocations to different places using transfers on GPU side, posted to `commandBuffer`. + + `VK_WHOLE_SIZE` means no limit. + */ + VkDeviceSize maxGpuBytesToMove; + /** \brief Maximum number of allocations that can be moved to a different place using transfers on GPU side, posted to `commandBuffer`. + + `UINT32_MAX` means no limit. + */ + uint32_t maxGpuAllocationsToMove; + /** \brief Optional. Command buffer where GPU copy commands will be posted. + + If not null, it must be a valid command buffer handle that supports Transfer queue type. + It must be in the recording state and outside of a render pass instance. + You need to submit it and make sure it finished execution before calling vmaDefragmentationEnd(). + + Passing null means that only CPU defragmentation will be performed. + */ + VkCommandBuffer VMA_NULLABLE commandBuffer; +} VmaDefragmentationInfo2; + +typedef struct VmaDefragmentationPassMoveInfo { + VmaAllocation VMA_NOT_NULL allocation; + VkDeviceMemory VMA_NOT_NULL_NON_DISPATCHABLE memory; + VkDeviceSize offset; +} VmaDefragmentationPassMoveInfo; + +/** \brief Parameters for incremental defragmentation steps. + +To be used with function vmaBeginDefragmentationPass(). +*/ +typedef struct VmaDefragmentationPassInfo { + uint32_t moveCount; + VmaDefragmentationPassMoveInfo* VMA_NOT_NULL VMA_LEN_IF_NOT_NULL(moveCount) pMoves; +} VmaDefragmentationPassInfo; + +/** \brief Deprecated. Optional configuration parameters to be passed to function vmaDefragment(). + +\deprecated This is a part of the old interface. It is recommended to use structure #VmaDefragmentationInfo2 and function vmaDefragmentationBegin() instead. +*/ typedef struct VmaDefragmentationInfo { /** \brief Maximum total numbers of bytes that can be copied while moving allocations to different places. - + Default is `VK_WHOLE_SIZE`, which means no limit. */ VkDeviceSize maxBytesToMove; @@ -1956,95 +1873,108 @@ typedef struct VmaDefragmentationStats { uint32_t deviceMemoryBlocksFreed; } VmaDefragmentationStats; -/** \brief Compacts memory by moving allocations. +/** \brief Begins defragmentation process. +@param allocator Allocator object. +@param pInfo Structure filled with parameters of defragmentation. +@param[out] pStats Optional. Statistics of defragmentation. You can pass null if you are not interested in this information. +@param[out] pContext Context object that must be passed to vmaDefragmentationEnd() to finish defragmentation. +@return `VK_SUCCESS` and `*pContext == null` if defragmentation finished within this function call. `VK_NOT_READY` and `*pContext != null` if defragmentation has been started and you need to call vmaDefragmentationEnd() to finish it. Negative value in case of error. + +Use this function instead of old, deprecated vmaDefragment(). + +Warning! Between the call to vmaDefragmentationBegin() and vmaDefragmentationEnd(): + +- You should not use any of allocations passed as `pInfo->pAllocations` or + any allocations that belong to pools passed as `pInfo->pPools`, + including calling vmaGetAllocationInfo(), vmaTouchAllocation(), or access + their data. +- Some mutexes protecting internal data structures may be locked, so trying to + make or free any allocations, bind buffers or images, map memory, or launch + another simultaneous defragmentation in between may cause stall (when done on + another thread) or deadlock (when done on the same thread), unless you are + 100% sure that defragmented allocations are in different pools. +- Information returned via `pStats` and `pInfo->pAllocationsChanged` are undefined. + They become valid after call to vmaDefragmentationEnd(). +- If `pInfo->commandBuffer` is not null, you must submit that command buffer + and make sure it finished execution before calling vmaDefragmentationEnd(). + +For more information and important limitations regarding defragmentation, see documentation chapter: +[Defragmentation](@ref defragmentation). +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaDefragmentationBegin( + VmaAllocator VMA_NOT_NULL allocator, + const VmaDefragmentationInfo2* VMA_NOT_NULL pInfo, + VmaDefragmentationStats* VMA_NULLABLE pStats, + VmaDefragmentationContext VMA_NULLABLE * VMA_NOT_NULL pContext); + +/** \brief Ends defragmentation process. + +Use this function to finish defragmentation started by vmaDefragmentationBegin(). +It is safe to pass `context == null`. The function then does nothing. +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaDefragmentationEnd( + VmaAllocator VMA_NOT_NULL allocator, + VmaDefragmentationContext VMA_NULLABLE context); + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaBeginDefragmentationPass( + VmaAllocator VMA_NOT_NULL allocator, + VmaDefragmentationContext VMA_NULLABLE context, + VmaDefragmentationPassInfo* VMA_NOT_NULL pInfo +); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaEndDefragmentationPass( + VmaAllocator VMA_NOT_NULL allocator, + VmaDefragmentationContext VMA_NULLABLE context +); + +/** \brief Deprecated. Compacts memory by moving allocations. + +@param allocator @param pAllocations Array of allocations that can be moved during this compation. @param allocationCount Number of elements in pAllocations and pAllocationsChanged arrays. @param[out] pAllocationsChanged Array of boolean values that will indicate whether matching allocation in pAllocations array has been moved. This parameter is optional. Pass null if you don't need this information. @param pDefragmentationInfo Configuration parameters. Optional - pass null to use default values. @param[out] pDefragmentationStats Statistics returned by the function. Optional - pass null if you don't need this information. -@return VK_SUCCESS if completed, VK_INCOMPLETE if succeeded but didn't make all possible optimizations because limits specified in pDefragmentationInfo have been reached, negative error code in case of error. +@return `VK_SUCCESS` if completed, negative error code in case of error. + +\deprecated This is a part of the old interface. It is recommended to use structure #VmaDefragmentationInfo2 and function vmaDefragmentationBegin() instead. This function works by moving allocations to different places (different `VkDeviceMemory` objects and/or different offsets) in order to optimize memory -usage. Only allocations that are in pAllocations array can be moved. All other +usage. Only allocations that are in `pAllocations` array can be moved. All other allocations are considered nonmovable in this call. Basic rules: - Only allocations made in memory types that have - `VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` flag can be compacted. You may pass other - allocations but it makes no sense - these will never be moved. -- You may pass allocations made with #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT but - it makes no sense - they will never be moved. + `VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` and `VK_MEMORY_PROPERTY_HOST_COHERENT_BIT` + flags can be compacted. You may pass other allocations but it makes no sense - + these will never be moved. +- Custom pools created with #VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT or + #VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT flag are not defragmented. Allocations + passed to this function that come from such pools are ignored. +- Allocations created with #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT or + created as dedicated allocations for any other reason are also ignored. - Both allocations made with or without #VMA_ALLOCATION_CREATE_MAPPED_BIT flag can be compacted. If not persistently mapped, memory will be mapped temporarily inside this function if needed. -- You must not pass same #VmaAllocation object multiple times in pAllocations array. +- You must not pass same #VmaAllocation object multiple times in `pAllocations` array. The function also frees empty `VkDeviceMemory` blocks. -After allocation has been moved, its VmaAllocationInfo::deviceMemory and/or -VmaAllocationInfo::offset changes. You must query them again using -vmaGetAllocationInfo() if you need them. - -If an allocation has been moved, data in memory is copied to new place -automatically, but if it was bound to a buffer or an image, you must destroy -that object yourself, create new one and bind it to the new memory pointed by -the allocation. You must use `vkDestroyBuffer()`, `vkDestroyImage()`, -`vkCreateBuffer()`, `vkCreateImage()` for that purpose and NOT vmaDestroyBuffer(), -vmaDestroyImage(), vmaCreateBuffer(), vmaCreateImage()! Example: - -\code -VkDevice device = ...; -VmaAllocator allocator = ...; -std::vector buffers = ...; -std::vector allocations = ...; - -std::vector allocationsChanged(allocations.size()); -vmaDefragment(allocator, allocations.data(), allocations.size(), allocationsChanged.data(), nullptr, nullptr); - -for(size_t i = 0; i < allocations.size(); ++i) -{ - if(allocationsChanged[i]) - { - VmaAllocationInfo allocInfo; - vmaGetAllocationInfo(allocator, allocations[i], &allocInfo); - - vkDestroyBuffer(device, buffers[i], nullptr); - - VkBufferCreateInfo bufferInfo = ...; - vkCreateBuffer(device, &bufferInfo, nullptr, &buffers[i]); - - // You can make dummy call to vkGetBufferMemoryRequirements here to silence validation layer warning. - - vkBindBufferMemory(device, buffers[i], allocInfo.deviceMemory, allocInfo.offset); - } -} -\endcode - -Note: Please don't expect memory to be fully compacted after this call. -Algorithms inside are based on some heuristics that try to maximize number of Vulkan -memory blocks to make totally empty to release them, as well as to maximimze continuous -empty space inside remaining blocks, while minimizing the number and size of data that -needs to be moved. Some fragmentation still remains after this call. This is normal. - -Warning: This function is not 100% correct according to Vulkan specification. Use it -at your own risk. That's because Vulkan doesn't guarantee that memory -requirements (size and alignment) for a new buffer or image are consistent. They -may be different even for subsequent calls with the same parameters. It really -does happen on some platforms, especially with images. - Warning: This function may be time-consuming, so you shouldn't call it too often -(like every frame or after every resource creation/destruction). +(like after every resource creation/destruction). You can call it on special occasions (like when reloading a game level or -when you just destroyed a lot of objects). +when you just destroyed a lot of objects). Calling it every frame may be OK, but +you should measure that on your platform. + +For more information, see [Defragmentation](@ref defragmentation) chapter. */ -VkResult vmaDefragment( - VmaAllocator allocator, - VmaAllocation* pAllocations, +VMA_CALL_PRE VkResult VMA_CALL_POST vmaDefragment( + VmaAllocator VMA_NOT_NULL allocator, + const VmaAllocation VMA_NOT_NULL * VMA_NOT_NULL VMA_LEN_IF_NOT_NULL(allocationCount) pAllocations, size_t allocationCount, - VkBool32* pAllocationsChanged, - const VmaDefragmentationInfo *pDefragmentationInfo, - VmaDefragmentationStats* pDefragmentationStats); + VkBool32* VMA_NULLABLE VMA_LEN_IF_NOT_NULL(allocationCount) pAllocationsChanged, + const VmaDefragmentationInfo* VMA_NULLABLE pDefragmentationInfo, + VmaDefragmentationStats* VMA_NULLABLE pDefragmentationStats); /** \brief Binds buffer to allocation. @@ -2058,10 +1988,30 @@ allocations, calls to `vkBind*Memory()` or `vkMapMemory()` won't happen from mul It is recommended to use function vmaCreateBuffer() instead of this one. */ -VkResult vmaBindBufferMemory( - VmaAllocator allocator, - VmaAllocation allocation, - VkBuffer buffer); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindBufferMemory( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + VkBuffer VMA_NOT_NULL_NON_DISPATCHABLE buffer); + +/** \brief Binds buffer to allocation with additional parameters. + +@param allocator +@param allocation +@param allocationLocalOffset Additional offset to be added while binding, relative to the beginning of the `allocation`. Normally it should be 0. +@param buffer +@param pNext A chain of structures to be attached to `VkBindBufferMemoryInfoKHR` structure used internally. Normally it should be null. + +This function is similar to vmaBindBufferMemory(), but it provides additional parameters. + +If `pNext` is not null, #VmaAllocator object must have been created with #VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT flag +or with VmaAllocatorCreateInfo::vulkanApiVersion `>= VK_API_VERSION_1_1`. Otherwise the call fails. +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindBufferMemory2( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + VkDeviceSize allocationLocalOffset, + VkBuffer VMA_NOT_NULL_NON_DISPATCHABLE buffer, + const void* VMA_NULLABLE pNext); /** \brief Binds image to allocation. @@ -2075,12 +2025,35 @@ allocations, calls to `vkBind*Memory()` or `vkMapMemory()` won't happen from mul It is recommended to use function vmaCreateImage() instead of this one. */ -VkResult vmaBindImageMemory( - VmaAllocator allocator, - VmaAllocation allocation, - VkImage image); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindImageMemory( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + VkImage VMA_NOT_NULL_NON_DISPATCHABLE image); + +/** \brief Binds image to allocation with additional parameters. + +@param allocator +@param allocation +@param allocationLocalOffset Additional offset to be added while binding, relative to the beginning of the `allocation`. Normally it should be 0. +@param image +@param pNext A chain of structures to be attached to `VkBindImageMemoryInfoKHR` structure used internally. Normally it should be null. + +This function is similar to vmaBindImageMemory(), but it provides additional parameters. + +If `pNext` is not null, #VmaAllocator object must have been created with #VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT flag +or with VmaAllocatorCreateInfo::vulkanApiVersion `>= VK_API_VERSION_1_1`. Otherwise the call fails. +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindImageMemory2( + VmaAllocator VMA_NOT_NULL allocator, + VmaAllocation VMA_NOT_NULL allocation, + VkDeviceSize allocationLocalOffset, + VkImage VMA_NOT_NULL_NON_DISPATCHABLE image, + const void* VMA_NULLABLE pNext); /** +@param allocator +@param pBufferCreateInfo +@param pAllocationCreateInfo @param[out] pBuffer Buffer that was created. @param[out] pAllocation Allocation that was created. @param[out] pAllocationInfo Optional. Information about allocated memory. It can be later fetched using function vmaGetAllocationInfo(). @@ -2098,21 +2071,40 @@ If the function succeeded, you must destroy both buffer and allocation when you no longer need them using either convenience function vmaDestroyBuffer() or separately, using `vkDestroyBuffer()` and vmaFreeMemory(). -If VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT flag was used, +If #VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT flag was used, VK_KHR_dedicated_allocation extension is used internally to query driver whether it requires or prefers the new buffer to have dedicated allocation. If yes, and if dedicated allocation is possible (VmaAllocationCreateInfo::pool is null -and VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT is not used), it creates dedicated +and #VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT is not used), it creates dedicated allocation for this buffer, just like when using -VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT. +#VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT. + +\note This function creates a new `VkBuffer`. Sub-allocation of parts of one large buffer, +although recommended as a good practice, is out of scope of this library and could be implemented +by the user as a higher-level logic on top of VMA. */ -VkResult vmaCreateBuffer( - VmaAllocator allocator, - const VkBufferCreateInfo* pBufferCreateInfo, - const VmaAllocationCreateInfo* pAllocationCreateInfo, - VkBuffer* pBuffer, - VmaAllocation* pAllocation, - VmaAllocationInfo* pAllocationInfo); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateBuffer( + VmaAllocator VMA_NOT_NULL allocator, + const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo, + const VmaAllocationCreateInfo* VMA_NOT_NULL pAllocationCreateInfo, + VkBuffer VMA_NULLABLE_NON_DISPATCHABLE * VMA_NOT_NULL pBuffer, + VmaAllocation VMA_NULLABLE * VMA_NOT_NULL pAllocation, + VmaAllocationInfo* VMA_NULLABLE pAllocationInfo); + +/** \brief Creates a buffer with additional minimum alignment. + +Similar to vmaCreateBuffer() but provides additional parameter `minAlignment` which allows to specify custom, +minimum alignment to be used when placing the buffer inside a larger memory block, which may be needed e.g. +for interop with OpenGL. +*/ +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateBufferWithAlignment( + VmaAllocator VMA_NOT_NULL allocator, + const VkBufferCreateInfo* VMA_NOT_NULL pBufferCreateInfo, + const VmaAllocationCreateInfo* VMA_NOT_NULL pAllocationCreateInfo, + VkDeviceSize minAlignment, + VkBuffer VMA_NULLABLE_NON_DISPATCHABLE * VMA_NOT_NULL pBuffer, + VmaAllocation VMA_NULLABLE * VMA_NOT_NULL pAllocation, + VmaAllocationInfo* VMA_NULLABLE pAllocationInfo); /** \brief Destroys Vulkan buffer and frees allocated memory. @@ -2125,19 +2117,19 @@ vmaFreeMemory(allocator, allocation); It it safe to pass null as buffer and/or allocation. */ -void vmaDestroyBuffer( - VmaAllocator allocator, - VkBuffer buffer, - VmaAllocation allocation); +VMA_CALL_PRE void VMA_CALL_POST vmaDestroyBuffer( + VmaAllocator VMA_NOT_NULL allocator, + VkBuffer VMA_NULLABLE_NON_DISPATCHABLE buffer, + VmaAllocation VMA_NULLABLE allocation); /// Function similar to vmaCreateBuffer(). -VkResult vmaCreateImage( - VmaAllocator allocator, - const VkImageCreateInfo* pImageCreateInfo, - const VmaAllocationCreateInfo* pAllocationCreateInfo, - VkImage* pImage, - VmaAllocation* pAllocation, - VmaAllocationInfo* pAllocationInfo); +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateImage( + VmaAllocator VMA_NOT_NULL allocator, + const VkImageCreateInfo* VMA_NOT_NULL pImageCreateInfo, + const VmaAllocationCreateInfo* VMA_NOT_NULL pAllocationCreateInfo, + VkImage VMA_NULLABLE_NON_DISPATCHABLE * VMA_NOT_NULL pImage, + VmaAllocation VMA_NULLABLE * VMA_NOT_NULL pAllocation, + VmaAllocationInfo* VMA_NULLABLE pAllocationInfo); /** \brief Destroys Vulkan image and frees allocated memory. @@ -2150,10 +2142,10 @@ vmaFreeMemory(allocator, allocation); It it safe to pass null as image and/or allocation. */ -void vmaDestroyImage( - VmaAllocator allocator, - VkImage image, - VmaAllocation allocation); +VMA_CALL_PRE void VMA_CALL_POST vmaDestroyImage( + VmaAllocator VMA_NOT_NULL allocator, + VkImage VMA_NULLABLE_NON_DISPATCHABLE image, + VmaAllocation VMA_NULLABLE allocation); #ifdef __cplusplus } @@ -2162,7 +2154,7 @@ void vmaDestroyImage( #endif // AMD_VULKAN_MEMORY_ALLOCATOR_H // For Visual Studio IntelliSense. -#ifdef __INTELLISENSE__ +#if defined(__cplusplus) && defined(__INTELLISENSE__) #define VMA_IMPLEMENTATION #endif @@ -2172,6 +2164,17 @@ void vmaDestroyImage( #include #include #include +#include + +#if VMA_RECORDING_ENABLED + #include + #if defined(_WIN32) + #include + #else + #include + #include + #endif +#endif /******************************************************************************* CONFIGURATION SECTION @@ -2185,12 +2188,23 @@ Define this macro to 1 to make the library fetch pointers to Vulkan functions internally, like: vulkanFunctions.vkAllocateMemory = &vkAllocateMemory; - -Define to 0 if you are going to provide you own pointers to Vulkan functions via -VmaAllocatorCreateInfo::pVulkanFunctions. */ #if !defined(VMA_STATIC_VULKAN_FUNCTIONS) && !defined(VK_NO_PROTOTYPES) -#define VMA_STATIC_VULKAN_FUNCTIONS 1 + #define VMA_STATIC_VULKAN_FUNCTIONS 1 +#endif + +/* +Define this macro to 1 to make the library fetch pointers to Vulkan functions +internally, like: + + vulkanFunctions.vkAllocateMemory = (PFN_vkAllocateMemory)vkGetDeviceProcAddr(m_hDevice, vkAllocateMemory); +*/ +#if !defined(VMA_DYNAMIC_VULKAN_FUNCTIONS) + #define VMA_DYNAMIC_VULKAN_FUNCTIONS 1 + #if defined(VK_NO_PROTOTYPES) + extern PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr; + extern PFN_vkGetDeviceProcAddr vkGetDeviceProcAddr; + #endif #endif // Define this macro to 1 to make the library use STL containers instead of its own implementation. @@ -2208,6 +2222,24 @@ the containers. #define VMA_USE_STL_LIST 1 #endif +#ifndef VMA_USE_STL_SHARED_MUTEX + // Compiler conforms to C++17. + #if __cplusplus >= 201703L + #define VMA_USE_STL_SHARED_MUTEX 1 + // Visual studio defines __cplusplus properly only when passed additional parameter: /Zc:__cplusplus + // Otherwise it is always 199711L, despite shared_mutex works since Visual Studio 2015 Update 2. + // See: https://blogs.msdn.microsoft.com/vcblog/2018/04/09/msvc-now-correctly-reports-__cplusplus/ + #elif defined(_MSC_FULL_VER) && _MSC_FULL_VER >= 190023918 && __cplusplus == 199711L && _MSVC_LANG >= 201703L + #define VMA_USE_STL_SHARED_MUTEX 1 + #else + #define VMA_USE_STL_SHARED_MUTEX 0 + #endif +#endif + +/* +THESE INCLUDES ARE NOT ENABLED BY DEFAULT. +Library has its own container implementation. +*/ #if VMA_USE_STL_VECTOR #include #endif @@ -2226,22 +2258,16 @@ remove them if not needed. */ #include // for assert #include // for min, max -#include // for std::mutex -#include // for std::atomic - -#if !defined(_WIN32) && !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__DragonFly__) - #include // for aligned_alloc() -#endif +#include #ifndef VMA_NULL // Value used as null pointer. Define it to e.g.: nullptr, NULL, 0, (void*)0. #define VMA_NULL nullptr #endif -#ifndef __MINGW32__ -#if defined(__APPLE__) || defined(__ANDROID__) || defined(__OpenBSD__) || (defined(__GLIBCXX__) && !defined(_GLIBCXX_HAVE_ALIGNED_ALLOC)) +#if defined(__ANDROID_API__) && (__ANDROID_API__ < 16) #include -void *aligned_alloc(size_t alignment, size_t size) +static void* vma_aligned_alloc(size_t alignment, size_t size) { // alignment must be >= sizeof(void*) if(alignment < sizeof(void*)) @@ -2249,30 +2275,88 @@ void *aligned_alloc(size_t alignment, size_t size) alignment = sizeof(void*); } + return memalign(alignment, size); +} +#elif defined(__APPLE__) || defined(__ANDROID__) || (defined(__linux__) && defined(__GLIBCXX__) && !defined(_GLIBCXX_HAVE_ALIGNED_ALLOC)) +#include + +#if defined(__APPLE__) +#include +#endif + +static void* vma_aligned_alloc(size_t alignment, size_t size) +{ + // Unfortunately, aligned_alloc causes VMA to crash due to it returning null pointers. (At least under 11.4) + // Therefore, for now disable this specific exception until a proper solution is found. + //#if defined(__APPLE__) && (defined(MAC_OS_X_VERSION_10_16) || defined(__IPHONE_14_0)) + //#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_16 || __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_14_0 + // // For C++14, usr/include/malloc/_malloc.h declares aligned_alloc()) only + // // with the MacOSX11.0 SDK in Xcode 12 (which is what adds + // // MAC_OS_X_VERSION_10_16), even though the function is marked + // // availabe for 10.15. That is why the preprocessor checks for 10.16 but + // // the __builtin_available checks for 10.15. + // // People who use C++17 could call aligned_alloc with the 10.15 SDK already. + // if (__builtin_available(macOS 10.15, iOS 13, *)) + // return aligned_alloc(alignment, size); + //#endif + //#endif + + // alignment must be >= sizeof(void*) + if(alignment < sizeof(void*)) + { + alignment = sizeof(void*); + } + void *pointer; if(posix_memalign(&pointer, alignment, size) == 0) return pointer; return VMA_NULL; } +#elif defined(_WIN32) +static void* vma_aligned_alloc(size_t alignment, size_t size) +{ + return _aligned_malloc(size, alignment); +} +#else +static void* vma_aligned_alloc(size_t alignment, size_t size) +{ + return aligned_alloc(alignment, size); +} #endif + +#if defined(_WIN32) +static void vma_aligned_free(void* ptr) +{ + _aligned_free(ptr); +} +#else +static void vma_aligned_free(void* VMA_NULLABLE ptr) +{ + free(ptr); +} #endif +// If your compiler is not compatible with C++11 and definition of +// aligned_alloc() function is missing, uncommeting following line may help: + +//#include + // Normal assert to check for programmer's errors, especially in Debug configuration. #ifndef VMA_ASSERT - #ifdef _DEBUG - #define VMA_ASSERT(expr) assert(expr) - #else + #ifdef NDEBUG #define VMA_ASSERT(expr) + #else + #define VMA_ASSERT(expr) assert(expr) #endif #endif // Assert that will be called very often, like inside data structures e.g. operator[]. // Making it non-empty can make program slow. #ifndef VMA_HEAVY_ASSERT - #ifdef _DEBUG - #define VMA_HEAVY_ASSERT(expr) //VMA_ASSERT(expr) - #else + #ifdef NDEBUG #define VMA_HEAVY_ASSERT(expr) + #else + #define VMA_HEAVY_ASSERT(expr) //VMA_ASSERT(expr) #endif #endif @@ -2281,27 +2365,24 @@ void *aligned_alloc(size_t alignment, size_t size) #endif #ifndef VMA_SYSTEM_ALIGNED_MALLOC - #if defined(_WIN32) - #define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) (_aligned_malloc((size), (alignment))) - #else - #define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) (aligned_alloc((alignment), (size) )) - #endif + #define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) vma_aligned_alloc((alignment), (size)) #endif -#ifndef VMA_SYSTEM_FREE - #if defined(_WIN32) - #define VMA_SYSTEM_FREE(ptr) _aligned_free(ptr) +#ifndef VMA_SYSTEM_ALIGNED_FREE + // VMA_SYSTEM_FREE is the old name, but might have been defined by the user + #if defined(VMA_SYSTEM_FREE) + #define VMA_SYSTEM_ALIGNED_FREE(ptr) VMA_SYSTEM_FREE(ptr) #else - #define VMA_SYSTEM_FREE(ptr) free(ptr) - #endif + #define VMA_SYSTEM_ALIGNED_FREE(ptr) vma_aligned_free(ptr) + #endif #endif #ifndef VMA_MIN - #define VMA_MIN(v1, v2) (std::min((v1), (v2))) + #define VMA_MIN(v1, v2) ((std::min)((v1), (v2))) #endif #ifndef VMA_MAX - #define VMA_MAX(v1, v2) (std::max((v1), (v2))) + #define VMA_MAX(v1, v2) ((std::max)((v1), (v2))) #endif #ifndef VMA_SWAP @@ -2324,100 +2405,166 @@ void *aligned_alloc(size_t alignment, size_t size) // Define this macro to 1 to enable functions: vmaBuildStatsString, vmaFreeStatsString. #if VMA_STATS_STRING_ENABLED - static inline void VmaUint32ToStr(char* outStr, size_t strLen, uint32_t num) - { - snprintf(outStr, strLen, "%u", static_cast(num)); - } - static inline void VmaUint64ToStr(char* outStr, size_t strLen, uint64_t num) - { - snprintf(outStr, strLen, "%llu", static_cast(num)); - } - static inline void VmaPtrToStr(char* outStr, size_t strLen, const void* ptr) - { - snprintf(outStr, strLen, "%p", ptr); - } + static inline void VmaUint32ToStr(char* VMA_NOT_NULL outStr, size_t strLen, uint32_t num) + { + snprintf(outStr, strLen, "%u", static_cast(num)); + } + static inline void VmaUint64ToStr(char* VMA_NOT_NULL outStr, size_t strLen, uint64_t num) + { + snprintf(outStr, strLen, "%llu", static_cast(num)); + } + static inline void VmaPtrToStr(char* VMA_NOT_NULL outStr, size_t strLen, const void* ptr) + { + snprintf(outStr, strLen, "%p", ptr); + } #endif #ifndef VMA_MUTEX - class VmaMutex - { - public: - VmaMutex() { } - ~VmaMutex() { } - void Lock() { m_Mutex.lock(); } - void Unlock() { m_Mutex.unlock(); } - private: - std::mutex m_Mutex; - }; - #define VMA_MUTEX VmaMutex + class VmaMutex + { + public: + void Lock() { m_Mutex.lock(); } + void Unlock() { m_Mutex.unlock(); } + bool TryLock() { return m_Mutex.try_lock(); } + private: + std::mutex m_Mutex; + }; + #define VMA_MUTEX VmaMutex #endif +// Read-write mutex, where "read" is shared access, "write" is exclusive access. +#ifndef VMA_RW_MUTEX + #if VMA_USE_STL_SHARED_MUTEX + // Use std::shared_mutex from C++17. + #include + class VmaRWMutex + { + public: + void LockRead() { m_Mutex.lock_shared(); } + void UnlockRead() { m_Mutex.unlock_shared(); } + bool TryLockRead() { return m_Mutex.try_lock_shared(); } + void LockWrite() { m_Mutex.lock(); } + void UnlockWrite() { m_Mutex.unlock(); } + bool TryLockWrite() { return m_Mutex.try_lock(); } + private: + std::shared_mutex m_Mutex; + }; + #define VMA_RW_MUTEX VmaRWMutex + #elif defined(_WIN32) && defined(WINVER) && WINVER >= 0x0600 + // Use SRWLOCK from WinAPI. + // Minimum supported client = Windows Vista, server = Windows Server 2008. + class VmaRWMutex + { + public: + VmaRWMutex() { InitializeSRWLock(&m_Lock); } + void LockRead() { AcquireSRWLockShared(&m_Lock); } + void UnlockRead() { ReleaseSRWLockShared(&m_Lock); } + bool TryLockRead() { return TryAcquireSRWLockShared(&m_Lock) != FALSE; } + void LockWrite() { AcquireSRWLockExclusive(&m_Lock); } + void UnlockWrite() { ReleaseSRWLockExclusive(&m_Lock); } + bool TryLockWrite() { return TryAcquireSRWLockExclusive(&m_Lock) != FALSE; } + private: + SRWLOCK m_Lock; + }; + #define VMA_RW_MUTEX VmaRWMutex + #else + // Less efficient fallback: Use normal mutex. + class VmaRWMutex + { + public: + void LockRead() { m_Mutex.Lock(); } + void UnlockRead() { m_Mutex.Unlock(); } + bool TryLockRead() { return m_Mutex.TryLock(); } + void LockWrite() { m_Mutex.Lock(); } + void UnlockWrite() { m_Mutex.Unlock(); } + bool TryLockWrite() { return m_Mutex.TryLock(); } + private: + VMA_MUTEX m_Mutex; + }; + #define VMA_RW_MUTEX VmaRWMutex + #endif // #if VMA_USE_STL_SHARED_MUTEX +#endif // #ifndef VMA_RW_MUTEX + /* -If providing your own implementation, you need to implement a subset of std::atomic: - -- Constructor(uint32_t desired) -- uint32_t load() const -- void store(uint32_t desired) -- bool compare_exchange_weak(uint32_t& expected, uint32_t desired) +If providing your own implementation, you need to implement a subset of std::atomic. */ #ifndef VMA_ATOMIC_UINT32 - #define VMA_ATOMIC_UINT32 std::atomic + #include + #define VMA_ATOMIC_UINT32 std::atomic #endif -#ifndef VMA_BEST_FIT - /** - Main parameter for function assessing how good is a free suballocation for a new - allocation request. - - - Set to 1 to use Best-Fit algorithm - prefer smaller blocks, as close to the - size of requested allocations as possible. - - Set to 0 to use Worst-Fit algorithm - prefer larger blocks, as large as - possible. - - Experiments in special testing environment showed that Best-Fit algorithm is - better. - */ - #define VMA_BEST_FIT (1) +#ifndef VMA_ATOMIC_UINT64 + #include + #define VMA_ATOMIC_UINT64 std::atomic #endif #ifndef VMA_DEBUG_ALWAYS_DEDICATED_MEMORY - /** - Every allocation will have its own memory block. - Define to 1 for debugging purposes only. - */ - #define VMA_DEBUG_ALWAYS_DEDICATED_MEMORY (0) + /** + Every allocation will have its own memory block. + Define to 1 for debugging purposes only. + */ + #define VMA_DEBUG_ALWAYS_DEDICATED_MEMORY (0) #endif -#ifndef VMA_DEBUG_ALIGNMENT - /** - Minimum alignment of all suballocations, in bytes. - Set to more than 1 for debugging purposes only. Must be power of two. - */ - #define VMA_DEBUG_ALIGNMENT (1) +#ifndef VMA_MIN_ALIGNMENT + /** + Minimum alignment of all allocations, in bytes. + Set to more than 1 for debugging purposes. Must be power of two. + */ + #ifdef VMA_DEBUG_ALIGNMENT // Old name + #define VMA_MIN_ALIGNMENT VMA_DEBUG_ALIGNMENT + #else + #define VMA_MIN_ALIGNMENT (1) + #endif #endif #ifndef VMA_DEBUG_MARGIN - /** - Minimum margin between suballocations, in bytes. - Set nonzero for debugging purposes only. - */ - #define VMA_DEBUG_MARGIN (0) + /** + Minimum margin before and after every allocation, in bytes. + Set nonzero for debugging purposes only. + */ + #define VMA_DEBUG_MARGIN (0) +#endif + +#ifndef VMA_DEBUG_INITIALIZE_ALLOCATIONS + /** + Define this macro to 1 to automatically fill new allocations and destroyed + allocations with some bit pattern. + */ + #define VMA_DEBUG_INITIALIZE_ALLOCATIONS (0) +#endif + +#ifndef VMA_DEBUG_DETECT_CORRUPTION + /** + Define this macro to 1 together with non-zero value of VMA_DEBUG_MARGIN to + enable writing magic value to the margin before and after every allocation and + validating it, so that memory corruptions (out-of-bounds writes) are detected. + */ + #define VMA_DEBUG_DETECT_CORRUPTION (0) #endif #ifndef VMA_DEBUG_GLOBAL_MUTEX - /** - Set this to 1 for debugging purposes only, to enable single mutex protecting all - entry calls to the library. Can be useful for debugging multithreading issues. - */ - #define VMA_DEBUG_GLOBAL_MUTEX (0) + /** + Set this to 1 for debugging purposes only, to enable single mutex protecting all + entry calls to the library. Can be useful for debugging multithreading issues. + */ + #define VMA_DEBUG_GLOBAL_MUTEX (0) #endif #ifndef VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY - /** - Minimum value for VkPhysicalDeviceLimits::bufferImageGranularity. - Set to more than 1 for debugging purposes only. Must be power of two. - */ - #define VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY (1) + /** + Minimum value for VkPhysicalDeviceLimits::bufferImageGranularity. + Set to more than 1 for debugging purposes only. Must be power of two. + */ + #define VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY (1) +#endif + +#ifndef VMA_DEBUG_DONT_EXCEED_MAX_MEMORY_ALLOCATION_COUNT + /* + Set this to 1 to make VMA never exceed VkPhysicalDeviceLimits::maxMemoryAllocationCount + and return error instead of leaving up to Vulkan implementation what to do in such cases. + */ + #define VMA_DEBUG_DONT_EXCEED_MAX_MEMORY_ALLOCATION_COUNT (0) #endif #ifndef VMA_SMALL_HEAP_MAX_SIZE @@ -2430,41 +2577,155 @@ If providing your own implementation, you need to implement a subset of std::ato #define VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE (256ull * 1024 * 1024) #endif +#ifndef VMA_CLASS_NO_COPY + #define VMA_CLASS_NO_COPY(className) \ + private: \ + className(const className&) = delete; \ + className& operator=(const className&) = delete; +#endif + static const uint32_t VMA_FRAME_INDEX_LOST = UINT32_MAX; +// Decimal 2139416166, float NaN, little-endian binary 66 E6 84 7F. +static const uint32_t VMA_CORRUPTION_DETECTION_MAGIC_VALUE = 0x7F84E666; + +static const uint8_t VMA_ALLOCATION_FILL_PATTERN_CREATED = 0xDC; +static const uint8_t VMA_ALLOCATION_FILL_PATTERN_DESTROYED = 0xEF; + /******************************************************************************* END OF CONFIGURATION */ +// # Copy of some Vulkan definitions so we don't need to check their existence just to handle few constants. + +static const uint32_t VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD_COPY = 0x00000040; +static const uint32_t VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD_COPY = 0x00000080; +static const uint32_t VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_COPY = 0x00020000; + +static const uint32_t VMA_ALLOCATION_INTERNAL_STRATEGY_MIN_OFFSET = 0x10000000u; + static VkAllocationCallbacks VmaEmptyAllocationCallbacks = { VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL, VMA_NULL }; // Returns number of bits set to 1 in (v). static inline uint32_t VmaCountBitsSet(uint32_t v) { - uint32_t c = v - ((v >> 1) & 0x55555555); - c = ((c >> 2) & 0x33333333) + (c & 0x33333333); - c = ((c >> 4) + c) & 0x0F0F0F0F; - c = ((c >> 8) + c) & 0x00FF00FF; - c = ((c >> 16) + c) & 0x0000FFFF; - return c; + uint32_t c = v - ((v >> 1) & 0x55555555); + c = ((c >> 2) & 0x33333333) + (c & 0x33333333); + c = ((c >> 4) + c) & 0x0F0F0F0F; + c = ((c >> 8) + c) & 0x00FF00FF; + c = ((c >> 16) + c) & 0x0000FFFF; + return c; +} + +/* +Returns true if given number is a power of two. +T must be unsigned integer number or signed integer but always nonnegative. +For 0 returns true. +*/ +template +inline bool VmaIsPow2(T x) +{ + return (x & (x-1)) == 0; } // Aligns given value up to nearest multiply of align value. For example: VmaAlignUp(11, 8) = 16. // Use types like uint32_t, uint64_t as T. template -static inline T VmaAlignUp(T val, T align) +static inline T VmaAlignUp(T val, T alignment) { - return (val + align - 1) / align * align; + VMA_HEAVY_ASSERT(VmaIsPow2(alignment)); + return (val + alignment - 1) & ~(alignment - 1); +} +// Aligns given value down to nearest multiply of align value. For example: VmaAlignUp(11, 8) = 8. +// Use types like uint32_t, uint64_t as T. +template +static inline T VmaAlignDown(T val, T alignment) +{ + VMA_HEAVY_ASSERT(VmaIsPow2(alignment)); + return val & ~(alignment - 1); } // Division with mathematical rounding to nearest number. template -inline T VmaRoundDiv(T x, T y) +static inline T VmaRoundDiv(T x, T y) { - return (x + (y / (T)2)) / y; + return (x + (y / (T)2)) / y; } +// Returns smallest power of 2 greater or equal to v. +static inline uint32_t VmaNextPow2(uint32_t v) +{ + v--; + v |= v >> 1; + v |= v >> 2; + v |= v >> 4; + v |= v >> 8; + v |= v >> 16; + v++; + return v; +} +static inline uint64_t VmaNextPow2(uint64_t v) +{ + v--; + v |= v >> 1; + v |= v >> 2; + v |= v >> 4; + v |= v >> 8; + v |= v >> 16; + v |= v >> 32; + v++; + return v; +} + +// Returns largest power of 2 less or equal to v. +static inline uint32_t VmaPrevPow2(uint32_t v) +{ + v |= v >> 1; + v |= v >> 2; + v |= v >> 4; + v |= v >> 8; + v |= v >> 16; + v = v ^ (v >> 1); + return v; +} +static inline uint64_t VmaPrevPow2(uint64_t v) +{ + v |= v >> 1; + v |= v >> 2; + v |= v >> 4; + v |= v >> 8; + v |= v >> 16; + v |= v >> 32; + v = v ^ (v >> 1); + return v; +} + +static inline bool VmaStrIsEmpty(const char* pStr) +{ + return pStr == VMA_NULL || *pStr == '\0'; +} + +#if VMA_STATS_STRING_ENABLED + +static const char* VmaAlgorithmToStr(uint32_t algorithm) +{ + switch(algorithm) + { + case VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT: + return "Linear"; + case VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT: + return "Buddy"; + case 0: + return "Default"; + default: + VMA_ASSERT(0); + return ""; + } +} + +#endif // #if VMA_STATS_STRING_ENABLED + #ifndef VMA_SORT template @@ -2551,7 +2812,7 @@ static inline bool VmaIsBufferImageGranularityConflict( { VMA_SWAP(suballocType1, suballocType2); } - + switch(suballocType1) { case VMA_SUBALLOCATION_TYPE_FREE: @@ -2578,31 +2839,88 @@ static inline bool VmaIsBufferImageGranularityConflict( } } +static void VmaWriteMagicValue(void* pData, VkDeviceSize offset) +{ +#if VMA_DEBUG_MARGIN > 0 && VMA_DEBUG_DETECT_CORRUPTION + uint32_t* pDst = (uint32_t*)((char*)pData + offset); + const size_t numberCount = VMA_DEBUG_MARGIN / sizeof(uint32_t); + for(size_t i = 0; i < numberCount; ++i, ++pDst) + { + *pDst = VMA_CORRUPTION_DETECTION_MAGIC_VALUE; + } +#else + // no-op +#endif +} + +static bool VmaValidateMagicValue(const void* pData, VkDeviceSize offset) +{ +#if VMA_DEBUG_MARGIN > 0 && VMA_DEBUG_DETECT_CORRUPTION + const uint32_t* pSrc = (const uint32_t*)((const char*)pData + offset); + const size_t numberCount = VMA_DEBUG_MARGIN / sizeof(uint32_t); + for(size_t i = 0; i < numberCount; ++i, ++pSrc) + { + if(*pSrc != VMA_CORRUPTION_DETECTION_MAGIC_VALUE) + { + return false; + } + } +#endif + return true; +} + +/* +Fills structure with parameters of an example buffer to be used for transfers +during GPU memory defragmentation. +*/ +static void VmaFillGpuDefragmentationBufferCreateInfo(VkBufferCreateInfo& outBufCreateInfo) +{ + memset(&outBufCreateInfo, 0, sizeof(outBufCreateInfo)); + outBufCreateInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO; + outBufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; + outBufCreateInfo.size = (VkDeviceSize)VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE; // Example size. +} + // Helper RAII class to lock a mutex in constructor and unlock it in destructor (at the end of scope). struct VmaMutexLock { + VMA_CLASS_NO_COPY(VmaMutexLock) public: - VmaMutexLock(VMA_MUTEX& mutex, bool useMutex) : + VmaMutexLock(VMA_MUTEX& mutex, bool useMutex = true) : m_pMutex(useMutex ? &mutex : VMA_NULL) - { - if(m_pMutex) - { - m_pMutex->Lock(); - } - } - + { if(m_pMutex) { m_pMutex->Lock(); } } ~VmaMutexLock() - { - if(m_pMutex) - { - m_pMutex->Unlock(); - } - } - + { if(m_pMutex) { m_pMutex->Unlock(); } } private: VMA_MUTEX* m_pMutex; }; +// Helper RAII class to lock a RW mutex in constructor and unlock it in destructor (at the end of scope), for reading. +struct VmaMutexLockRead +{ + VMA_CLASS_NO_COPY(VmaMutexLockRead) +public: + VmaMutexLockRead(VMA_RW_MUTEX& mutex, bool useMutex) : + m_pMutex(useMutex ? &mutex : VMA_NULL) + { if(m_pMutex) { m_pMutex->LockRead(); } } + ~VmaMutexLockRead() { if(m_pMutex) { m_pMutex->UnlockRead(); } } +private: + VMA_RW_MUTEX* m_pMutex; +}; + +// Helper RAII class to lock a RW mutex in constructor and unlock it in destructor (at the end of scope), for writing. +struct VmaMutexLockWrite +{ + VMA_CLASS_NO_COPY(VmaMutexLockWrite) +public: + VmaMutexLockWrite(VMA_RW_MUTEX& mutex, bool useMutex) : + m_pMutex(useMutex ? &mutex : VMA_NULL) + { if(m_pMutex) { m_pMutex->LockWrite(); } } + ~VmaMutexLockWrite() { if(m_pMutex) { m_pMutex->UnlockWrite(); } } +private: + VMA_RW_MUTEX* m_pMutex; +}; + #if VMA_DEBUG_GLOBAL_MUTEX static VMA_MUTEX gDebugGlobalMutex; #define VMA_DEBUG_GLOBAL_MUTEX_LOCK VmaMutexLock debugGlobalMutexLock(gDebugGlobalMutex, true); @@ -2622,23 +2940,69 @@ Cmp should return true if first argument is less than second argument. Returned value is the found element, if present in the collection or place where new element with value (key) should be inserted. */ -template -static IterT VmaBinaryFindFirstNotLess(IterT beg, IterT end, const KeyT &key, CmpT cmp) +template +static IterT VmaBinaryFindFirstNotLess(IterT beg, IterT end, const KeyT &key, const CmpLess& cmp) { - size_t down = 0, up = (end - beg); - while(down < up) - { - const size_t mid = (down + up) / 2; - if(cmp(*(beg+mid), key)) - { - down = mid + 1; - } - else - { - up = mid; - } - } - return beg + down; + size_t down = 0, up = (end - beg); + while(down < up) + { + const size_t mid = down + (up - down) / 2; // Overflow-safe midpoint calculation + if(cmp(*(beg+mid), key)) + { + down = mid + 1; + } + else + { + up = mid; + } + } + return beg + down; +} + +template +IterT VmaBinaryFindSorted(const IterT& beg, const IterT& end, const KeyT& value, const CmpLess& cmp) +{ + IterT it = VmaBinaryFindFirstNotLess( + beg, end, value, cmp); + if(it == end || + (!cmp(*it, value) && !cmp(value, *it))) + { + return it; + } + return end; +} + +/* +Returns true if all pointers in the array are not-null and unique. +Warning! O(n^2) complexity. Use only inside VMA_HEAVY_ASSERT. +T must be pointer type, e.g. VmaAllocation, VmaPool. +*/ +template +static bool VmaValidatePointerArray(uint32_t count, const T* arr) +{ + for(uint32_t i = 0; i < count; ++i) + { + const T iPtr = arr[i]; + if(iPtr == VMA_NULL) + { + return false; + } + for(uint32_t j = i + 1; j < count; ++j) + { + if(iPtr == arr[j]) + { + return false; + } + } + } + return true; +} + +template +static inline void VmaPnextChainPushFront(MainT* mainStruct, NewT* newStruct) +{ + newStruct->pNext = mainStruct->pNext; + mainStruct->pNext = newStruct; } //////////////////////////////////////////////////////////////////////////////// @@ -2646,10 +3010,11 @@ static IterT VmaBinaryFindFirstNotLess(IterT beg, IterT end, const KeyT &key, Cm static void* VmaMalloc(const VkAllocationCallbacks* pAllocationCallbacks, size_t size, size_t alignment) { + void* result = VMA_NULL; if((pAllocationCallbacks != VMA_NULL) && (pAllocationCallbacks->pfnAllocation != VMA_NULL)) { - return (*pAllocationCallbacks->pfnAllocation)( + result = (*pAllocationCallbacks->pfnAllocation)( pAllocationCallbacks->pUserData, size, alignment, @@ -2657,8 +3022,10 @@ static void* VmaMalloc(const VkAllocationCallbacks* pAllocationCallbacks, size_t } else { - return VMA_SYSTEM_ALIGNED_MALLOC(size, alignment); + result = VMA_SYSTEM_ALIGNED_MALLOC(size, alignment); } + VMA_ASSERT(result != VMA_NULL && "CPU memory allocation failed."); + return result; } static void VmaFree(const VkAllocationCallbacks* pAllocationCallbacks, void* ptr) @@ -2670,7 +3037,7 @@ static void VmaFree(const VkAllocationCallbacks* pAllocationCallbacks, void* ptr } else { - VMA_SYSTEM_FREE(ptr); + VMA_SYSTEM_ALIGNED_FREE(ptr); } } @@ -2710,6 +3077,30 @@ static void vma_delete_array(const VkAllocationCallbacks* pAllocationCallbacks, } } +static char* VmaCreateStringCopy(const VkAllocationCallbacks* allocs, const char* srcStr) +{ + if(srcStr != VMA_NULL) + { + const size_t len = strlen(srcStr); + char* const result = vma_new_array(allocs, char, len + 1); + memcpy(result, srcStr, len + 1); + return result; + } + else + { + return VMA_NULL; + } +} + +static void VmaFreeString(const VkAllocationCallbacks* allocs, char* str) +{ + if(str != VMA_NULL) + { + const size_t len = strlen(str); + vma_delete_array(allocs, str, len + 1); + } +} + // STL-compatible allocator. template class VmaStlAllocator @@ -2717,7 +3108,7 @@ class VmaStlAllocator public: const VkAllocationCallbacks* const m_pCallbacks; typedef T value_type; - + VmaStlAllocator(const VkAllocationCallbacks* pCallbacks) : m_pCallbacks(pCallbacks) { } template VmaStlAllocator(const VmaStlAllocator& src) : m_pCallbacks(src.m_pCallbacks) { } @@ -2736,6 +3127,7 @@ public: } VmaStlAllocator& operator=(const VmaStlAllocator& x) = delete; + VmaStlAllocator(const VmaStlAllocator&) = default; }; #if VMA_USE_STL_VECTOR @@ -2780,7 +3172,12 @@ public: m_Capacity(count) { } - + + // This version of the constructor is here for compatibility with pre-C++14 std::vector. + // value is unused. + VmaVector(size_t count, const T& value, const AllocatorT& allocator) + : VmaVector(count, allocator) {} + VmaVector(const VmaVector& src) : m_Allocator(src.m_Allocator), m_pArray(src.m_Count ? (T*)VmaAllocateArray(src.m_Allocator.m_pCallbacks, src.m_Count) : VMA_NULL), @@ -2792,7 +3189,7 @@ public: memcpy(m_pArray, src.m_pArray, m_Count * sizeof(T)); } } - + ~VmaVector() { VmaFree(m_Allocator.m_pCallbacks, m_pArray); @@ -2810,12 +3207,12 @@ public: } return *this; } - + bool empty() const { return m_Count == 0; } size_t size() const { return m_Count; } T* data() { return m_pArray; } const T* data() const { return m_pArray; } - + T& operator[](size_t index) { VMA_HEAVY_ASSERT(index < m_Count); @@ -2851,12 +3248,12 @@ public: void reserve(size_t newCapacity, bool freeMemory = false) { newCapacity = VMA_MAX(newCapacity, m_Count); - + if((newCapacity < m_Capacity) && !freeMemory) { newCapacity = m_Capacity; } - + if(newCapacity != m_Capacity) { T* const newArray = newCapacity ? VmaAllocateArray(m_Allocator, newCapacity) : VMA_NULL; @@ -2870,17 +3267,13 @@ public: } } - void resize(size_t newCount, bool freeMemory = false) + void resize(size_t newCount) { size_t newCapacity = m_Capacity; if(newCount > m_Capacity) { newCapacity = VMA_MAX(newCount, VMA_MAX(m_Capacity * 3 / 2, (size_t)8)); } - else if(freeMemory) - { - newCapacity = newCount; - } if(newCapacity != m_Capacity) { @@ -2898,9 +3291,25 @@ public: m_Count = newCount; } - void clear(bool freeMemory = false) + void clear() { - resize(0, freeMemory); + resize(0); + } + + void shrink_to_fit() + { + if(m_Capacity > m_Count) + { + T* newArray = VMA_NULL; + if(m_Count > 0) + { + newArray = VmaAllocateArray(m_Allocator.m_pCallbacks, m_Count); + memcpy(newArray, m_pArray, m_Count * sizeof(T)); + } + VmaFree(m_Allocator.m_pCallbacks, m_pArray); + m_Capacity = m_Count; + m_pArray = newArray; + } } void insert(size_t index, const T& src) @@ -2951,9 +3360,14 @@ public: } typedef T* iterator; + typedef const T* const_iterator; iterator begin() { return m_pArray; } iterator end() { return m_pArray + m_Count; } + const_iterator cbegin() const { return m_pArray; } + const_iterator cend() const { return m_pArray + m_Count; } + const_iterator begin() const { return cbegin(); } + const_iterator end() const { return cend(); } private: AllocatorT m_Allocator; @@ -3006,24 +3420,186 @@ bool VmaVectorRemoveSorted(VectorT& vector, const typename VectorT::value_type& return false; } -template -size_t VmaVectorFindSorted(const VectorT& vector, const typename VectorT::value_type& value) +//////////////////////////////////////////////////////////////////////////////// +// class VmaSmallVector + +/* +This is a vector (a variable-sized array), optimized for the case when the array is small. + +It contains some number of elements in-place, which allows it to avoid heap allocation +when the actual number of elements is below that threshold. This allows normal "small" +cases to be fast without losing generality for large inputs. +*/ + +template +class VmaSmallVector { - CmpLess comparator; - typename VectorT::iterator it = VmaBinaryFindFirstNotLess( - vector.data(), - vector.data() + vector.size(), - value, - comparator); - if(it != vector.size() && !comparator(*it, value) && !comparator(value, *it)) +public: + typedef T value_type; + + VmaSmallVector(const AllocatorT& allocator) : + m_Count(0), + m_DynamicArray(allocator) { - return it - vector.begin(); } - else + VmaSmallVector(size_t count, const AllocatorT& allocator) : + m_Count(count), + m_DynamicArray(count > N ? count : 0, allocator) { - return vector.size(); } -} + template + VmaSmallVector(const VmaSmallVector& src) = delete; + template + VmaSmallVector& operator=(const VmaSmallVector& rhs) = delete; + + bool empty() const { return m_Count == 0; } + size_t size() const { return m_Count; } + T* data() { return m_Count > N ? m_DynamicArray.data() : m_StaticArray; } + const T* data() const { return m_Count > N ? m_DynamicArray.data() : m_StaticArray; } + + T& operator[](size_t index) + { + VMA_HEAVY_ASSERT(index < m_Count); + return data()[index]; + } + const T& operator[](size_t index) const + { + VMA_HEAVY_ASSERT(index < m_Count); + return data()[index]; + } + + T& front() + { + VMA_HEAVY_ASSERT(m_Count > 0); + return data()[0]; + } + const T& front() const + { + VMA_HEAVY_ASSERT(m_Count > 0); + return data()[0]; + } + T& back() + { + VMA_HEAVY_ASSERT(m_Count > 0); + return data()[m_Count - 1]; + } + const T& back() const + { + VMA_HEAVY_ASSERT(m_Count > 0); + return data()[m_Count - 1]; + } + + void resize(size_t newCount, bool freeMemory = false) + { + if(newCount > N && m_Count > N) + { + // Any direction, staying in m_DynamicArray + m_DynamicArray.resize(newCount); + if(freeMemory) + { + m_DynamicArray.shrink_to_fit(); + } + } + else if(newCount > N && m_Count <= N) + { + // Growing, moving from m_StaticArray to m_DynamicArray + m_DynamicArray.resize(newCount); + if(m_Count > 0) + { + memcpy(m_DynamicArray.data(), m_StaticArray, m_Count * sizeof(T)); + } + } + else if(newCount <= N && m_Count > N) + { + // Shrinking, moving from m_DynamicArray to m_StaticArray + if(newCount > 0) + { + memcpy(m_StaticArray, m_DynamicArray.data(), newCount * sizeof(T)); + } + m_DynamicArray.resize(0); + if(freeMemory) + { + m_DynamicArray.shrink_to_fit(); + } + } + else + { + // Any direction, staying in m_StaticArray - nothing to do here + } + m_Count = newCount; + } + + void clear(bool freeMemory = false) + { + m_DynamicArray.clear(); + if(freeMemory) + { + m_DynamicArray.shrink_to_fit(); + } + m_Count = 0; + } + + void insert(size_t index, const T& src) + { + VMA_HEAVY_ASSERT(index <= m_Count); + const size_t oldCount = size(); + resize(oldCount + 1); + T* const dataPtr = data(); + if(index < oldCount) + { + // I know, this could be more optimal for case where memmove can be memcpy directly from m_StaticArray to m_DynamicArray. + memmove(dataPtr + (index + 1), dataPtr + index, (oldCount - index) * sizeof(T)); + } + dataPtr[index] = src; + } + + void remove(size_t index) + { + VMA_HEAVY_ASSERT(index < m_Count); + const size_t oldCount = size(); + if(index < oldCount - 1) + { + // I know, this could be more optimal for case where memmove can be memcpy directly from m_DynamicArray to m_StaticArray. + T* const dataPtr = data(); + memmove(dataPtr + index, dataPtr + (index + 1), (oldCount - index - 1) * sizeof(T)); + } + resize(oldCount - 1); + } + + void push_back(const T& src) + { + const size_t newIndex = size(); + resize(newIndex + 1); + data()[newIndex] = src; + } + + void pop_back() + { + VMA_HEAVY_ASSERT(m_Count > 0); + resize(size() - 1); + } + + void push_front(const T& src) + { + insert(0, src); + } + + void pop_front() + { + VMA_HEAVY_ASSERT(m_Count > 0); + remove(0); + } + + typedef T* iterator; + + iterator begin() { return data(); } + iterator end() { return data() + m_Count; } + +private: + size_t m_Count; + T m_StaticArray[N]; // Used when m_Size <= N + VmaVector m_DynamicArray; // Used when m_Size > N +}; //////////////////////////////////////////////////////////////////////////////// // class VmaPoolAllocator @@ -3036,58 +3612,53 @@ allocator can create multiple blocks. template class VmaPoolAllocator { + VMA_CLASS_NO_COPY(VmaPoolAllocator) public: - VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, size_t itemsPerBlock); + VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, uint32_t firstBlockCapacity); ~VmaPoolAllocator(); - void Clear(); - T* Alloc(); + template T* Alloc(Types&&... args); void Free(T* ptr); private: union Item { uint32_t NextFreeIndex; - T Value; + alignas(T) char Value[sizeof(T)]; }; struct ItemBlock { Item* pItems; + uint32_t Capacity; uint32_t FirstFreeIndex; }; - + const VkAllocationCallbacks* m_pAllocationCallbacks; - size_t m_ItemsPerBlock; + const uint32_t m_FirstBlockCapacity; VmaVector< ItemBlock, VmaStlAllocator > m_ItemBlocks; ItemBlock& CreateNewBlock(); }; template -VmaPoolAllocator::VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, size_t itemsPerBlock) : +VmaPoolAllocator::VmaPoolAllocator(const VkAllocationCallbacks* pAllocationCallbacks, uint32_t firstBlockCapacity) : m_pAllocationCallbacks(pAllocationCallbacks), - m_ItemsPerBlock(itemsPerBlock), + m_FirstBlockCapacity(firstBlockCapacity), m_ItemBlocks(VmaStlAllocator(pAllocationCallbacks)) { - VMA_ASSERT(itemsPerBlock > 0); + VMA_ASSERT(m_FirstBlockCapacity > 1); } template VmaPoolAllocator::~VmaPoolAllocator() -{ - Clear(); -} - -template -void VmaPoolAllocator::Clear() { for(size_t i = m_ItemBlocks.size(); i--; ) - vma_delete_array(m_pAllocationCallbacks, m_ItemBlocks[i].pItems, m_ItemsPerBlock); + vma_delete_array(m_pAllocationCallbacks, m_ItemBlocks[i].pItems, m_ItemBlocks[i].Capacity); m_ItemBlocks.clear(); } template -T* VmaPoolAllocator::Alloc() +template T* VmaPoolAllocator::Alloc(Types&&... args) { for(size_t i = m_ItemBlocks.size(); i--; ) { @@ -3097,7 +3668,9 @@ T* VmaPoolAllocator::Alloc() { Item* const pItem = &block.pItems[block.FirstFreeIndex]; block.FirstFreeIndex = pItem->NextFreeIndex; - return &pItem->Value; + T* result = (T*)&pItem->Value; + new(result)T(std::forward(args)...); // Explicit constructor call. + return result; } } @@ -3105,24 +3678,27 @@ T* VmaPoolAllocator::Alloc() ItemBlock& newBlock = CreateNewBlock(); Item* const pItem = &newBlock.pItems[0]; newBlock.FirstFreeIndex = pItem->NextFreeIndex; - return &pItem->Value; + T* result = (T*)&pItem->Value; + new(result)T(std::forward(args)...); // Explicit constructor call. + return result; } template void VmaPoolAllocator::Free(T* ptr) { // Search all memory blocks to find ptr. - for(size_t i = 0; i < m_ItemBlocks.size(); ++i) + for(size_t i = m_ItemBlocks.size(); i--; ) { ItemBlock& block = m_ItemBlocks[i]; - + // Casting to union. Item* pItemPtr; memcpy(&pItemPtr, &ptr, sizeof(pItemPtr)); - + // Check if pItemPtr is in address range of this block. - if((pItemPtr >= block.pItems) && (pItemPtr < block.pItems + m_ItemsPerBlock)) + if((pItemPtr >= block.pItems) && (pItemPtr < block.pItems + block.Capacity)) { + ptr->~T(); // Explicit destructor call. const uint32_t index = static_cast(pItemPtr - block.pItems); pItemPtr->NextFreeIndex = block.FirstFreeIndex; block.FirstFreeIndex = index; @@ -3135,15 +3711,20 @@ void VmaPoolAllocator::Free(T* ptr) template typename VmaPoolAllocator::ItemBlock& VmaPoolAllocator::CreateNewBlock() { - ItemBlock newBlock = { - vma_new_array(m_pAllocationCallbacks, Item, m_ItemsPerBlock), 0 }; + const uint32_t newBlockCapacity = m_ItemBlocks.empty() ? + m_FirstBlockCapacity : m_ItemBlocks.back().Capacity * 3 / 2; + + const ItemBlock newBlock = { + vma_new_array(m_pAllocationCallbacks, Item, newBlockCapacity), + newBlockCapacity, + 0 }; m_ItemBlocks.push_back(newBlock); // Setup singly-linked list of all free items in this block. - for(uint32_t i = 0; i < m_ItemsPerBlock - 1; ++i) + for(uint32_t i = 0; i < newBlockCapacity - 1; ++i) newBlock.pItems[i].NextFreeIndex = i + 1; - newBlock.pItems[m_ItemsPerBlock - 1].NextFreeIndex = UINT32_MAX; + newBlock.pItems[newBlockCapacity - 1].NextFreeIndex = UINT32_MAX; return m_ItemBlocks.back(); } @@ -3168,6 +3749,7 @@ struct VmaListItem template class VmaRawList { + VMA_CLASS_NO_COPY(VmaRawList) public: typedef VmaListItem ItemType; @@ -3189,7 +3771,7 @@ public: ItemType* PushFront(const T& value); void PopBack(); void PopFront(); - + // Item can be null - it means PushBack. ItemType* InsertBefore(ItemType* pItem); // Item can be null - it means PushFront. @@ -3206,10 +3788,6 @@ private: ItemType* m_pFront; ItemType* m_pBack; size_t m_Count; - - // Declared not defined, to block copy constructor and assignment operator. - VmaRawList(const VmaRawList& src); - VmaRawList& operator=(const VmaRawList& rhs); }; template @@ -3438,6 +4016,7 @@ VmaListItem* VmaRawList::InsertAfter(ItemType* pItem, const T& value) template class VmaList { + VMA_CLASS_NO_COPY(VmaList) public: class iterator { @@ -3502,7 +4081,7 @@ public: VMA_HEAVY_ASSERT(m_pList == rhs.m_pList); return m_pItem != rhs.m_pItem; } - + private: VmaRawList* m_pList; VmaListItem* m_pItem; @@ -3530,7 +4109,7 @@ public: m_pItem(src.m_pItem) { } - + const T& operator*() const { VMA_HEAVY_ASSERT(m_pItem != VMA_NULL); @@ -3585,7 +4164,7 @@ public: VMA_HEAVY_ASSERT(m_pList == rhs.m_pList); return m_pItem != rhs.m_pItem; } - + private: const_iterator(const VmaRawList* pList, const VmaListItem* pItem) : m_pList(pList), @@ -3610,6 +4189,9 @@ public: const_iterator cbegin() const { return const_iterator(&m_RawList, m_RawList.Front()); } const_iterator cend() const { return const_iterator(&m_RawList, VMA_NULL); } + const_iterator begin() const { return cbegin(); } + const_iterator end() const { return cend(); } + void clear() { m_RawList.Clear(); } void push_back(const T& value) { m_RawList.PushBack(value); } void erase(iterator it) { m_RawList.Remove(it.m_pItem); } @@ -3621,6 +4203,222 @@ private: #endif // #if VMA_USE_STL_LIST +//////////////////////////////////////////////////////////////////////////////// +// class VmaIntrusiveLinkedList + +/* +Expected interface of ItemTypeTraits: +struct MyItemTypeTraits +{ + typedef MyItem ItemType; + static ItemType* GetPrev(const ItemType* item) { return item->myPrevPtr; } + static ItemType* GetNext(const ItemType* item) { return item->myNextPtr; } + static ItemType*& AccessPrev(ItemType* item) { return item->myPrevPtr; } + static ItemType*& AccessNext(ItemType* item) { return item->myNextPtr; } +}; +*/ +template +class VmaIntrusiveLinkedList +{ +public: + typedef typename ItemTypeTraits::ItemType ItemType; + static ItemType* GetPrev(const ItemType* item) { return ItemTypeTraits::GetPrev(item); } + static ItemType* GetNext(const ItemType* item) { return ItemTypeTraits::GetNext(item); } + // Movable, not copyable. + VmaIntrusiveLinkedList() { } + VmaIntrusiveLinkedList(const VmaIntrusiveLinkedList& src) = delete; + VmaIntrusiveLinkedList(VmaIntrusiveLinkedList&& src) : + m_Front(src.m_Front), m_Back(src.m_Back), m_Count(src.m_Count) + { + src.m_Front = src.m_Back = VMA_NULL; + src.m_Count = 0; + } + ~VmaIntrusiveLinkedList() + { + VMA_HEAVY_ASSERT(IsEmpty()); + } + VmaIntrusiveLinkedList& operator=(const VmaIntrusiveLinkedList& src) = delete; + VmaIntrusiveLinkedList& operator=(VmaIntrusiveLinkedList&& src) + { + if(&src != this) + { + VMA_HEAVY_ASSERT(IsEmpty()); + m_Front = src.m_Front; + m_Back = src.m_Back; + m_Count = src.m_Count; + src.m_Front = src.m_Back = VMA_NULL; + src.m_Count = 0; + } + return *this; + } + void RemoveAll() + { + if(!IsEmpty()) + { + ItemType* item = m_Back; + while(item != VMA_NULL) + { + ItemType* const prevItem = ItemTypeTraits::AccessPrev(item); + ItemTypeTraits::AccessPrev(item) = VMA_NULL; + ItemTypeTraits::AccessNext(item) = VMA_NULL; + item = prevItem; + } + m_Front = VMA_NULL; + m_Back = VMA_NULL; + m_Count = 0; + } + } + size_t GetCount() const { return m_Count; } + bool IsEmpty() const { return m_Count == 0; } + ItemType* Front() { return m_Front; } + const ItemType* Front() const { return m_Front; } + ItemType* Back() { return m_Back; } + const ItemType* Back() const { return m_Back; } + void PushBack(ItemType* item) + { + VMA_HEAVY_ASSERT(ItemTypeTraits::GetPrev(item) == VMA_NULL && ItemTypeTraits::GetNext(item) == VMA_NULL); + if(IsEmpty()) + { + m_Front = item; + m_Back = item; + m_Count = 1; + } + else + { + ItemTypeTraits::AccessPrev(item) = m_Back; + ItemTypeTraits::AccessNext(m_Back) = item; + m_Back = item; + ++m_Count; + } + } + void PushFront(ItemType* item) + { + VMA_HEAVY_ASSERT(ItemTypeTraits::GetPrev(item) == VMA_NULL && ItemTypeTraits::GetNext(item) == VMA_NULL); + if(IsEmpty()) + { + m_Front = item; + m_Back = item; + m_Count = 1; + } + else + { + ItemTypeTraits::AccessNext(item) = m_Front; + ItemTypeTraits::AccessPrev(m_Front) = item; + m_Front = item; + ++m_Count; + } + } + ItemType* PopBack() + { + VMA_HEAVY_ASSERT(m_Count > 0); + ItemType* const backItem = m_Back; + ItemType* const prevItem = ItemTypeTraits::GetPrev(backItem); + if(prevItem != VMA_NULL) + { + ItemTypeTraits::AccessNext(prevItem) = VMA_NULL; + } + m_Back = prevItem; + --m_Count; + ItemTypeTraits::AccessPrev(backItem) = VMA_NULL; + ItemTypeTraits::AccessNext(backItem) = VMA_NULL; + return backItem; + } + ItemType* PopFront() + { + VMA_HEAVY_ASSERT(m_Count > 0); + ItemType* const frontItem = m_Front; + ItemType* const nextItem = ItemTypeTraits::GetNext(frontItem); + if(nextItem != VMA_NULL) + { + ItemTypeTraits::AccessPrev(nextItem) = VMA_NULL; + } + m_Front = nextItem; + --m_Count; + ItemTypeTraits::AccessPrev(frontItem) = VMA_NULL; + ItemTypeTraits::AccessNext(frontItem) = VMA_NULL; + return frontItem; + } + + // MyItem can be null - it means PushBack. + void InsertBefore(ItemType* existingItem, ItemType* newItem) + { + VMA_HEAVY_ASSERT(newItem != VMA_NULL && ItemTypeTraits::GetPrev(newItem) == VMA_NULL && ItemTypeTraits::GetNext(newItem) == VMA_NULL); + if(existingItem != VMA_NULL) + { + ItemType* const prevItem = ItemTypeTraits::GetPrev(existingItem); + ItemTypeTraits::AccessPrev(newItem) = prevItem; + ItemTypeTraits::AccessNext(newItem) = existingItem; + ItemTypeTraits::AccessPrev(existingItem) = newItem; + if(prevItem != VMA_NULL) + { + ItemTypeTraits::AccessNext(prevItem) = newItem; + } + else + { + VMA_HEAVY_ASSERT(m_Front == existingItem); + m_Front = newItem; + } + ++m_Count; + } + else + PushBack(newItem); + } + // MyItem can be null - it means PushFront. + void InsertAfter(ItemType* existingItem, ItemType* newItem) + { + VMA_HEAVY_ASSERT(newItem != VMA_NULL && ItemTypeTraits::GetPrev(newItem) == VMA_NULL && ItemTypeTraits::GetNext(newItem) == VMA_NULL); + if(existingItem != VMA_NULL) + { + ItemType* const nextItem = ItemTypeTraits::GetNext(existingItem); + ItemTypeTraits::AccessNext(newItem) = nextItem; + ItemTypeTraits::AccessPrev(newItem) = existingItem; + ItemTypeTraits::AccessNext(existingItem) = newItem; + if(nextItem != VMA_NULL) + { + ItemTypeTraits::AccessPrev(nextItem) = newItem; + } + else + { + VMA_HEAVY_ASSERT(m_Back == existingItem); + m_Back = newItem; + } + ++m_Count; + } + else + return PushFront(newItem); + } + void Remove(ItemType* item) + { + VMA_HEAVY_ASSERT(item != VMA_NULL && m_Count > 0); + if(ItemTypeTraits::GetPrev(item) != VMA_NULL) + { + ItemTypeTraits::AccessNext(ItemTypeTraits::AccessPrev(item)) = ItemTypeTraits::GetNext(item); + } + else + { + VMA_HEAVY_ASSERT(m_Front == item); + m_Front = ItemTypeTraits::GetNext(item); + } + + if(ItemTypeTraits::GetNext(item) != VMA_NULL) + { + ItemTypeTraits::AccessPrev(ItemTypeTraits::AccessNext(item)) = ItemTypeTraits::GetPrev(item); + } + else + { + VMA_HEAVY_ASSERT(m_Back == item); + m_Back = ItemTypeTraits::GetPrev(item); + } + ItemTypeTraits::AccessPrev(item) = VMA_NULL; + ItemTypeTraits::AccessNext(item) = VMA_NULL; + --m_Count; + } +private: + ItemType* m_Front = VMA_NULL; + ItemType* m_Back = VMA_NULL; + size_t m_Count = 0; +}; + //////////////////////////////////////////////////////////////////////////////// // class VmaMap @@ -3664,7 +4462,7 @@ public: void insert(const PairType& pair); iterator find(const KeyT& key); void erase(iterator it); - + private: VmaVector< PairType, VmaStlAllocator > m_Vector; }; @@ -3727,6 +4525,8 @@ void VmaMap::erase(iterator it) class VmaDeviceMemoryBlock; +enum VMA_CACHE_OPERATION { VMA_CACHE_FLUSH, VMA_CACHE_INVALIDATE }; + struct VmaAllocation_T { private: @@ -3745,16 +4545,25 @@ public: ALLOCATION_TYPE_DEDICATED, }; + /* + This struct is allocated using VmaPoolAllocator. + */ + VmaAllocation_T(uint32_t currentFrameIndex, bool userDataString) : - m_Alignment(1), - m_Size(0), - m_pUserData(VMA_NULL), - m_LastUseFrameIndex(currentFrameIndex), - m_Type((uint8_t)ALLOCATION_TYPE_NONE), - m_SuballocationType((uint8_t)VMA_SUBALLOCATION_TYPE_UNKNOWN), - m_MapCount(0), - m_Flags(userDataString ? (uint8_t)FLAG_USER_DATA_STRING : 0) + m_Alignment{1}, + m_Size{0}, + m_pUserData{VMA_NULL}, + m_LastUseFrameIndex{currentFrameIndex}, + m_MemoryTypeIndex{0}, + m_Type{(uint8_t)ALLOCATION_TYPE_NONE}, + m_SuballocationType{(uint8_t)VMA_SUBALLOCATION_TYPE_UNKNOWN}, + m_MapCount{0}, + m_Flags{userDataString ? (uint8_t)FLAG_USER_DATA_STRING : (uint8_t)0} { +#if VMA_STATS_STRING_ENABLED + m_CreationFrameIndex = currentFrameIndex; + m_BufferImageUsage = 0; +#endif } ~VmaAllocation_T() @@ -3766,11 +4575,11 @@ public: } void InitBlockAllocation( - VmaPool hPool, VmaDeviceMemoryBlock* block, VkDeviceSize offset, VkDeviceSize alignment, VkDeviceSize size, + uint32_t memoryTypeIndex, VmaSuballocationType suballocationType, bool mapped, bool canBecomeLost) @@ -3780,9 +4589,9 @@ public: m_Type = (uint8_t)ALLOCATION_TYPE_BLOCK; m_Alignment = alignment; m_Size = size; + m_MemoryTypeIndex = memoryTypeIndex; m_MapCount = mapped ? MAP_COUNT_FLAG_PERSISTENT_MAP : 0; m_SuballocationType = (uint8_t)suballocationType; - m_BlockAllocation.m_hPool = hPool; m_BlockAllocation.m_Block = block; m_BlockAllocation.m_Offset = offset; m_BlockAllocation.m_CanBecomeLost = canBecomeLost; @@ -3793,7 +4602,7 @@ public: VMA_ASSERT(m_Type == ALLOCATION_TYPE_NONE); VMA_ASSERT(m_LastUseFrameIndex.load() == VMA_FRAME_INDEX_LOST); m_Type = (uint8_t)ALLOCATION_TYPE_BLOCK; - m_BlockAllocation.m_hPool = VK_NULL_HANDLE; + m_MemoryTypeIndex = 0; m_BlockAllocation.m_Block = VMA_NULL; m_BlockAllocation.m_Offset = 0; m_BlockAllocation.m_CanBecomeLost = true; @@ -3804,6 +4613,8 @@ public: VmaDeviceMemoryBlock* block, VkDeviceSize offset); + void ChangeOffset(VkDeviceSize newOffset); + // pMappedData not null means allocation is created with MAPPED flag. void InitDedicatedAllocation( uint32_t memoryTypeIndex, @@ -3817,11 +4628,13 @@ public: m_Type = (uint8_t)ALLOCATION_TYPE_DEDICATED; m_Alignment = 0; m_Size = size; + m_MemoryTypeIndex = memoryTypeIndex; m_SuballocationType = (uint8_t)suballocationType; m_MapCount = (pMappedData != VMA_NULL) ? MAP_COUNT_FLAG_PERSISTENT_MAP : 0; - m_DedicatedAllocation.m_MemoryTypeIndex = memoryTypeIndex; m_DedicatedAllocation.m_hMemory = hMemory; m_DedicatedAllocation.m_pMappedData = pMappedData; + m_DedicatedAllocation.m_Prev = VMA_NULL; + m_DedicatedAllocation.m_Next = VMA_NULL; } ALLOCATION_TYPE GetType() const { return (ALLOCATION_TYPE)m_Type; } @@ -3839,12 +4652,11 @@ public: } VkDeviceSize GetOffset() const; VkDeviceMemory GetMemory() const; - uint32_t GetMemoryTypeIndex() const; + uint32_t GetMemoryTypeIndex() const { return m_MemoryTypeIndex; } bool IsPersistentMap() const { return (m_MapCount & MAP_COUNT_FLAG_PERSISTENT_MAP) != 0; } void* GetMappedData() const; bool CanBecomeLost() const; - VmaPool GetPool() const; - + uint32_t GetLastUseFrameIndex() const { return m_LastUseFrameIndex.load(); @@ -3857,7 +4669,7 @@ public: - If hAllocation.LastUseFrameIndex + frameInUseCount < allocator.CurrentFrameIndex, makes it lost by setting LastUseFrameIndex = VMA_FRAME_INDEX_LOST and returns true. - Else, returns false. - + If hAllocation is already lost, assert - you should not call it then. If hAllocation was not created with CAN_BECOME_LOST_BIT, assert. */ @@ -3881,11 +4693,25 @@ public: VkResult DedicatedAllocMap(VmaAllocator hAllocator, void** ppData); void DedicatedAllocUnmap(VmaAllocator hAllocator); +#if VMA_STATS_STRING_ENABLED + uint32_t GetCreationFrameIndex() const { return m_CreationFrameIndex; } + uint32_t GetBufferImageUsage() const { return m_BufferImageUsage; } + + void InitBufferImageUsage(uint32_t bufferImageUsage) + { + VMA_ASSERT(m_BufferImageUsage == 0); + m_BufferImageUsage = bufferImageUsage; + } + + void PrintParameters(class VmaJsonWriter& json) const; +#endif + private: VkDeviceSize m_Alignment; VkDeviceSize m_Size; void* m_pUserData; VMA_ATOMIC_UINT32 m_LastUseFrameIndex; + uint32_t m_MemoryTypeIndex; uint8_t m_Type; // ALLOCATION_TYPE uint8_t m_SuballocationType; // VmaSuballocationType // Bit 0x80 is set when allocation was created with VMA_ALLOCATION_CREATE_MAPPED_BIT. @@ -3896,7 +4722,6 @@ private: // Allocation out of VmaDeviceMemoryBlock. struct BlockAllocation { - VmaPool m_hPool; // Null if belongs to general memory. VmaDeviceMemoryBlock* m_Block; VkDeviceSize m_Offset; bool m_CanBecomeLost; @@ -3905,9 +4730,10 @@ private: // Allocation for an object that has its own private VkDeviceMemory. struct DedicatedAllocation { - uint32_t m_MemoryTypeIndex; VkDeviceMemory m_hMemory; void* m_pMappedData; // Not null means memory is mapped. + VmaAllocation_T* m_Prev; + VmaAllocation_T* m_Next; }; union @@ -3918,7 +4744,38 @@ private: DedicatedAllocation m_DedicatedAllocation; }; +#if VMA_STATS_STRING_ENABLED + uint32_t m_CreationFrameIndex; + uint32_t m_BufferImageUsage; // 0 if unknown. +#endif + void FreeUserDataString(VmaAllocator hAllocator); + + friend struct VmaDedicatedAllocationListItemTraits; +}; + +struct VmaDedicatedAllocationListItemTraits +{ + typedef VmaAllocation_T ItemType; + static ItemType* GetPrev(const ItemType* item) + { + VMA_HEAVY_ASSERT(item->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED); + return item->m_DedicatedAllocation.m_Prev; + } + static ItemType* GetNext(const ItemType* item) + { + VMA_HEAVY_ASSERT(item->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED); + return item->m_DedicatedAllocation.m_Next; + } + static ItemType*& AccessPrev(ItemType* item) + { + VMA_HEAVY_ASSERT(item->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED); + return item->m_DedicatedAllocation.m_Prev; + } + static ItemType*& AccessNext(ItemType* item){ + VMA_HEAVY_ASSERT(item->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED); + return item->m_DedicatedAllocation.m_Next; + } }; /* @@ -3933,11 +4790,36 @@ struct VmaSuballocation VmaSuballocationType type; }; +// Comparator for offsets. +struct VmaSuballocationOffsetLess +{ + bool operator()(const VmaSuballocation& lhs, const VmaSuballocation& rhs) const + { + return lhs.offset < rhs.offset; + } +}; +struct VmaSuballocationOffsetGreater +{ + bool operator()(const VmaSuballocation& lhs, const VmaSuballocation& rhs) const + { + return lhs.offset > rhs.offset; + } +}; + typedef VmaList< VmaSuballocation, VmaStlAllocator > VmaSuballocationList; // Cost of one additional allocation lost, as equivalent in bytes. static const VkDeviceSize VMA_LOST_ALLOCATION_COST = 1048576; +enum class VmaAllocationRequestType +{ + Normal, + // Used by "Linear" algorithm. + UpperAddress, + EndOf1st, + EndOf2nd, +}; + /* Parameters of planned allocation inside a VmaDeviceMemoryBlock. @@ -3958,6 +4840,8 @@ struct VmaAllocationRequest VkDeviceSize sumItemSize; // Sum size of items to make lost that overlap with proposed allocation. VmaSuballocationList::iterator item; size_t itemsToMakeLostCount; + void* customData; + VmaAllocationRequestType type; VkDeviceSize CalcCost() const { @@ -3973,61 +4857,151 @@ class VmaBlockMetadata { public: VmaBlockMetadata(VmaAllocator hAllocator); - ~VmaBlockMetadata(); - void Init(VkDeviceSize size); + virtual ~VmaBlockMetadata() { } + virtual void Init(VkDeviceSize size) { m_Size = size; } // Validates all data structures inside this object. If not valid, returns false. - bool Validate() const; + virtual bool Validate() const = 0; VkDeviceSize GetSize() const { return m_Size; } - size_t GetAllocationCount() const { return m_Suballocations.size() - m_FreeCount; } - VkDeviceSize GetSumFreeSize() const { return m_SumFreeSize; } - VkDeviceSize GetUnusedRangeSizeMax() const; + virtual size_t GetAllocationCount() const = 0; + virtual VkDeviceSize GetSumFreeSize() const = 0; + virtual VkDeviceSize GetUnusedRangeSizeMax() const = 0; // Returns true if this block is empty - contains only single free suballocation. - bool IsEmpty() const; + virtual bool IsEmpty() const = 0; - void CalcAllocationStatInfo(VmaStatInfo& outInfo) const; - void AddPoolStats(VmaPoolStats& inoutStats) const; + virtual void CalcAllocationStatInfo(VmaStatInfo& outInfo) const = 0; + // Shouldn't modify blockCount. + virtual void AddPoolStats(VmaPoolStats& inoutStats) const = 0; #if VMA_STATS_STRING_ENABLED - void PrintDetailedMap(class VmaJsonWriter& json) const; + virtual void PrintDetailedMap(class VmaJsonWriter& json) const = 0; #endif - // Creates trivial request for case when block is empty. - void CreateFirstAllocationRequest(VmaAllocationRequest* pAllocationRequest); - // Tries to find a place for suballocation with given parameters inside this block. // If succeeded, fills pAllocationRequest and returns true. // If failed, returns false. - bool CreateAllocationRequest( + virtual bool CreateAllocationRequest( uint32_t currentFrameIndex, uint32_t frameInUseCount, VkDeviceSize bufferImageGranularity, VkDeviceSize allocSize, VkDeviceSize allocAlignment, + bool upperAddress, VmaSuballocationType allocType, bool canMakeOtherLost, + // Always one of VMA_ALLOCATION_CREATE_STRATEGY_* or VMA_ALLOCATION_INTERNAL_STRATEGY_* flags. + uint32_t strategy, + VmaAllocationRequest* pAllocationRequest) = 0; + + virtual bool MakeRequestedAllocationsLost( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VmaAllocationRequest* pAllocationRequest) = 0; + + virtual uint32_t MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount) = 0; + + virtual VkResult CheckCorruption(const void* pBlockData) = 0; + + // Makes actual allocation based on request. Request must already be checked and valid. + virtual void Alloc( + const VmaAllocationRequest& request, + VmaSuballocationType type, + VkDeviceSize allocSize, + VmaAllocation hAllocation) = 0; + + // Frees suballocation assigned to given memory region. + virtual void Free(const VmaAllocation allocation) = 0; + virtual void FreeAtOffset(VkDeviceSize offset) = 0; + +protected: + const VkAllocationCallbacks* GetAllocationCallbacks() const { return m_pAllocationCallbacks; } + +#if VMA_STATS_STRING_ENABLED + void PrintDetailedMap_Begin(class VmaJsonWriter& json, + VkDeviceSize unusedBytes, + size_t allocationCount, + size_t unusedRangeCount) const; + void PrintDetailedMap_Allocation(class VmaJsonWriter& json, + VkDeviceSize offset, + VmaAllocation hAllocation) const; + void PrintDetailedMap_UnusedRange(class VmaJsonWriter& json, + VkDeviceSize offset, + VkDeviceSize size) const; + void PrintDetailedMap_End(class VmaJsonWriter& json) const; +#endif + +private: + VkDeviceSize m_Size; + const VkAllocationCallbacks* m_pAllocationCallbacks; +}; + +#define VMA_VALIDATE(cond) do { if(!(cond)) { \ + VMA_ASSERT(0 && "Validation failed: " #cond); \ + return false; \ + } } while(false) + +class VmaBlockMetadata_Generic : public VmaBlockMetadata +{ + VMA_CLASS_NO_COPY(VmaBlockMetadata_Generic) +public: + VmaBlockMetadata_Generic(VmaAllocator hAllocator); + virtual ~VmaBlockMetadata_Generic(); + virtual void Init(VkDeviceSize size); + + virtual bool Validate() const; + virtual size_t GetAllocationCount() const { return m_Suballocations.size() - m_FreeCount; } + virtual VkDeviceSize GetSumFreeSize() const { return m_SumFreeSize; } + virtual VkDeviceSize GetUnusedRangeSizeMax() const; + virtual bool IsEmpty() const; + + virtual void CalcAllocationStatInfo(VmaStatInfo& outInfo) const; + virtual void AddPoolStats(VmaPoolStats& inoutStats) const; + +#if VMA_STATS_STRING_ENABLED + virtual void PrintDetailedMap(class VmaJsonWriter& json) const; +#endif + + virtual bool CreateAllocationRequest( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VkDeviceSize bufferImageGranularity, + VkDeviceSize allocSize, + VkDeviceSize allocAlignment, + bool upperAddress, + VmaSuballocationType allocType, + bool canMakeOtherLost, + uint32_t strategy, VmaAllocationRequest* pAllocationRequest); - bool MakeRequestedAllocationsLost( + virtual bool MakeRequestedAllocationsLost( uint32_t currentFrameIndex, uint32_t frameInUseCount, VmaAllocationRequest* pAllocationRequest); - uint32_t MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount); + virtual uint32_t MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount); - // Makes actual allocation based on request. Request must already be checked and valid. - void Alloc( + virtual VkResult CheckCorruption(const void* pBlockData); + + virtual void Alloc( const VmaAllocationRequest& request, VmaSuballocationType type, VkDeviceSize allocSize, VmaAllocation hAllocation); - // Frees suballocation assigned to given memory region. - void Free(const VmaAllocation allocation); - void FreeAtOffset(VkDeviceSize offset); + virtual void Free(const VmaAllocation allocation); + virtual void FreeAtOffset(VkDeviceSize offset); + + //////////////////////////////////////////////////////////////////////////////// + // For defragmentation + + bool IsBufferImageGranularityConflictPossible( + VkDeviceSize bufferImageGranularity, + VmaSuballocationType& inOutPrevSuballocType) const; private: - VkDeviceSize m_Size; + friend class VmaDefragmentationAlgorithm_Generic; + friend class VmaDefragmentationAlgorithm_Fast; + uint32_t m_FreeCount; VkDeviceSize m_SumFreeSize; VmaSuballocationList m_Suballocations; @@ -4059,13 +5033,357 @@ private: // Returns iterator to new free suballocation at this place. VmaSuballocationList::iterator FreeSuballocation(VmaSuballocationList::iterator suballocItem); // Given free suballocation, it inserts it into sorted list of - // m_FreeSuballocationsBySize if it's suitable. + // m_FreeSuballocationsBySize if it is suitable. void RegisterFreeSuballocation(VmaSuballocationList::iterator item); // Given free suballocation, it removes it from sorted list of - // m_FreeSuballocationsBySize if it's suitable. + // m_FreeSuballocationsBySize if it is suitable. void UnregisterFreeSuballocation(VmaSuballocationList::iterator item); }; +/* +Allocations and their references in internal data structure look like this: + +if(m_2ndVectorMode == SECOND_VECTOR_EMPTY): + + 0 +-------+ + | | + | | + | | + +-------+ + | Alloc | 1st[m_1stNullItemsBeginCount] + +-------+ + | Alloc | 1st[m_1stNullItemsBeginCount + 1] + +-------+ + | ... | + +-------+ + | Alloc | 1st[1st.size() - 1] + +-------+ + | | + | | + | | +GetSize() +-------+ + +if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER): + + 0 +-------+ + | Alloc | 2nd[0] + +-------+ + | Alloc | 2nd[1] + +-------+ + | ... | + +-------+ + | Alloc | 2nd[2nd.size() - 1] + +-------+ + | | + | | + | | + +-------+ + | Alloc | 1st[m_1stNullItemsBeginCount] + +-------+ + | Alloc | 1st[m_1stNullItemsBeginCount + 1] + +-------+ + | ... | + +-------+ + | Alloc | 1st[1st.size() - 1] + +-------+ + | | +GetSize() +-------+ + +if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK): + + 0 +-------+ + | | + | | + | | + +-------+ + | Alloc | 1st[m_1stNullItemsBeginCount] + +-------+ + | Alloc | 1st[m_1stNullItemsBeginCount + 1] + +-------+ + | ... | + +-------+ + | Alloc | 1st[1st.size() - 1] + +-------+ + | | + | | + | | + +-------+ + | Alloc | 2nd[2nd.size() - 1] + +-------+ + | ... | + +-------+ + | Alloc | 2nd[1] + +-------+ + | Alloc | 2nd[0] +GetSize() +-------+ + +*/ +class VmaBlockMetadata_Linear : public VmaBlockMetadata +{ + VMA_CLASS_NO_COPY(VmaBlockMetadata_Linear) +public: + VmaBlockMetadata_Linear(VmaAllocator hAllocator); + virtual ~VmaBlockMetadata_Linear(); + virtual void Init(VkDeviceSize size); + + virtual bool Validate() const; + virtual size_t GetAllocationCount() const; + virtual VkDeviceSize GetSumFreeSize() const { return m_SumFreeSize; } + virtual VkDeviceSize GetUnusedRangeSizeMax() const; + virtual bool IsEmpty() const { return GetAllocationCount() == 0; } + + virtual void CalcAllocationStatInfo(VmaStatInfo& outInfo) const; + virtual void AddPoolStats(VmaPoolStats& inoutStats) const; + +#if VMA_STATS_STRING_ENABLED + virtual void PrintDetailedMap(class VmaJsonWriter& json) const; +#endif + + virtual bool CreateAllocationRequest( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VkDeviceSize bufferImageGranularity, + VkDeviceSize allocSize, + VkDeviceSize allocAlignment, + bool upperAddress, + VmaSuballocationType allocType, + bool canMakeOtherLost, + uint32_t strategy, + VmaAllocationRequest* pAllocationRequest); + + virtual bool MakeRequestedAllocationsLost( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VmaAllocationRequest* pAllocationRequest); + + virtual uint32_t MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount); + + virtual VkResult CheckCorruption(const void* pBlockData); + + virtual void Alloc( + const VmaAllocationRequest& request, + VmaSuballocationType type, + VkDeviceSize allocSize, + VmaAllocation hAllocation); + + virtual void Free(const VmaAllocation allocation); + virtual void FreeAtOffset(VkDeviceSize offset); + +private: + /* + There are two suballocation vectors, used in ping-pong way. + The one with index m_1stVectorIndex is called 1st. + The one with index (m_1stVectorIndex ^ 1) is called 2nd. + 2nd can be non-empty only when 1st is not empty. + When 2nd is not empty, m_2ndVectorMode indicates its mode of operation. + */ + typedef VmaVector< VmaSuballocation, VmaStlAllocator > SuballocationVectorType; + + enum SECOND_VECTOR_MODE + { + SECOND_VECTOR_EMPTY, + /* + Suballocations in 2nd vector are created later than the ones in 1st, but they + all have smaller offset. + */ + SECOND_VECTOR_RING_BUFFER, + /* + Suballocations in 2nd vector are upper side of double stack. + They all have offsets higher than those in 1st vector. + Top of this stack means smaller offsets, but higher indices in this vector. + */ + SECOND_VECTOR_DOUBLE_STACK, + }; + + VkDeviceSize m_SumFreeSize; + SuballocationVectorType m_Suballocations0, m_Suballocations1; + uint32_t m_1stVectorIndex; + SECOND_VECTOR_MODE m_2ndVectorMode; + + SuballocationVectorType& AccessSuballocations1st() { return m_1stVectorIndex ? m_Suballocations1 : m_Suballocations0; } + SuballocationVectorType& AccessSuballocations2nd() { return m_1stVectorIndex ? m_Suballocations0 : m_Suballocations1; } + const SuballocationVectorType& AccessSuballocations1st() const { return m_1stVectorIndex ? m_Suballocations1 : m_Suballocations0; } + const SuballocationVectorType& AccessSuballocations2nd() const { return m_1stVectorIndex ? m_Suballocations0 : m_Suballocations1; } + + // Number of items in 1st vector with hAllocation = null at the beginning. + size_t m_1stNullItemsBeginCount; + // Number of other items in 1st vector with hAllocation = null somewhere in the middle. + size_t m_1stNullItemsMiddleCount; + // Number of items in 2nd vector with hAllocation = null. + size_t m_2ndNullItemsCount; + + bool ShouldCompact1st() const; + void CleanupAfterFree(); + + bool CreateAllocationRequest_LowerAddress( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VkDeviceSize bufferImageGranularity, + VkDeviceSize allocSize, + VkDeviceSize allocAlignment, + VmaSuballocationType allocType, + bool canMakeOtherLost, + uint32_t strategy, + VmaAllocationRequest* pAllocationRequest); + bool CreateAllocationRequest_UpperAddress( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VkDeviceSize bufferImageGranularity, + VkDeviceSize allocSize, + VkDeviceSize allocAlignment, + VmaSuballocationType allocType, + bool canMakeOtherLost, + uint32_t strategy, + VmaAllocationRequest* pAllocationRequest); +}; + +/* +- GetSize() is the original size of allocated memory block. +- m_UsableSize is this size aligned down to a power of two. + All allocations and calculations happen relative to m_UsableSize. +- GetUnusableSize() is the difference between them. + It is reported as separate, unused range, not available for allocations. + +Node at level 0 has size = m_UsableSize. +Each next level contains nodes with size 2 times smaller than current level. +m_LevelCount is the maximum number of levels to use in the current object. +*/ +class VmaBlockMetadata_Buddy : public VmaBlockMetadata +{ + VMA_CLASS_NO_COPY(VmaBlockMetadata_Buddy) +public: + VmaBlockMetadata_Buddy(VmaAllocator hAllocator); + virtual ~VmaBlockMetadata_Buddy(); + virtual void Init(VkDeviceSize size); + + virtual bool Validate() const; + virtual size_t GetAllocationCount() const { return m_AllocationCount; } + virtual VkDeviceSize GetSumFreeSize() const { return m_SumFreeSize + GetUnusableSize(); } + virtual VkDeviceSize GetUnusedRangeSizeMax() const; + virtual bool IsEmpty() const { return m_Root->type == Node::TYPE_FREE; } + + virtual void CalcAllocationStatInfo(VmaStatInfo& outInfo) const; + virtual void AddPoolStats(VmaPoolStats& inoutStats) const; + +#if VMA_STATS_STRING_ENABLED + virtual void PrintDetailedMap(class VmaJsonWriter& json) const; +#endif + + virtual bool CreateAllocationRequest( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VkDeviceSize bufferImageGranularity, + VkDeviceSize allocSize, + VkDeviceSize allocAlignment, + bool upperAddress, + VmaSuballocationType allocType, + bool canMakeOtherLost, + uint32_t strategy, + VmaAllocationRequest* pAllocationRequest); + + virtual bool MakeRequestedAllocationsLost( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VmaAllocationRequest* pAllocationRequest); + + virtual uint32_t MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount); + + virtual VkResult CheckCorruption(const void* pBlockData) { return VK_ERROR_FEATURE_NOT_PRESENT; } + + virtual void Alloc( + const VmaAllocationRequest& request, + VmaSuballocationType type, + VkDeviceSize allocSize, + VmaAllocation hAllocation); + + virtual void Free(const VmaAllocation allocation) { FreeAtOffset(allocation, allocation->GetOffset()); } + virtual void FreeAtOffset(VkDeviceSize offset) { FreeAtOffset(VMA_NULL, offset); } + +private: + static const VkDeviceSize MIN_NODE_SIZE = 32; + static const size_t MAX_LEVELS = 30; + + struct ValidationContext + { + size_t calculatedAllocationCount; + size_t calculatedFreeCount; + VkDeviceSize calculatedSumFreeSize; + + ValidationContext() : + calculatedAllocationCount(0), + calculatedFreeCount(0), + calculatedSumFreeSize(0) { } + }; + + struct Node + { + VkDeviceSize offset; + enum TYPE + { + TYPE_FREE, + TYPE_ALLOCATION, + TYPE_SPLIT, + TYPE_COUNT + } type; + Node* parent; + Node* buddy; + + union + { + struct + { + Node* prev; + Node* next; + } free; + struct + { + VmaAllocation alloc; + } allocation; + struct + { + Node* leftChild; + } split; + }; + }; + + // Size of the memory block aligned down to a power of two. + VkDeviceSize m_UsableSize; + uint32_t m_LevelCount; + + Node* m_Root; + struct { + Node* front; + Node* back; + } m_FreeList[MAX_LEVELS]; + // Number of nodes in the tree with type == TYPE_ALLOCATION. + size_t m_AllocationCount; + // Number of nodes in the tree with type == TYPE_FREE. + size_t m_FreeCount; + // This includes space wasted due to internal fragmentation. Doesn't include unusable size. + VkDeviceSize m_SumFreeSize; + + VkDeviceSize GetUnusableSize() const { return GetSize() - m_UsableSize; } + void DeleteNode(Node* node); + bool ValidateNode(ValidationContext& ctx, const Node* parent, const Node* curr, uint32_t level, VkDeviceSize levelNodeSize) const; + uint32_t AllocSizeToLevel(VkDeviceSize allocSize) const; + inline VkDeviceSize LevelToNodeSize(uint32_t level) const { return m_UsableSize >> level; } + // Alloc passed just for validation. Can be null. + void FreeAtOffset(VmaAllocation alloc, VkDeviceSize offset); + void CalcAllocationStatInfoNode(VmaStatInfo& outInfo, const Node* node, VkDeviceSize levelNodeSize) const; + // Adds node to the front of FreeList at given level. + // node->type must be FREE. + // node->free.prev, next can be undefined. + void AddToFreeListFront(uint32_t level, Node* node); + // Removes node from FreeList at given level. + // node->type must be FREE. + // node->free.prev, next stay untouched. + void RemoveFromFreeList(uint32_t level, Node* node); + +#if VMA_STATS_STRING_ENABLED + void PrintDetailedMapNode(class VmaJsonWriter& json, const Node* node, VkDeviceSize levelNodeSize) const; +#endif +}; + /* Represents a single block of device memory (`VkDeviceMemory`) with all the data about its regions (aka suballocations, #VmaAllocation), assigned and free. @@ -4074,8 +5392,9 @@ Thread-safety: This class must be externally synchronized. */ class VmaDeviceMemoryBlock { + VMA_CLASS_NO_COPY(VmaDeviceMemoryBlock) public: - VmaBlockMetadata m_Metadata; + VmaBlockMetadata* m_pMetadata; VmaDeviceMemoryBlock(VmaAllocator hAllocator); @@ -4087,52 +5406,76 @@ public: // Always call after construction. void Init( + VmaAllocator hAllocator, + VmaPool hParentPool, uint32_t newMemoryTypeIndex, VkDeviceMemory newMemory, - VkDeviceSize newSize); + VkDeviceSize newSize, + uint32_t id, + uint32_t algorithm); // Always call before destruction. void Destroy(VmaAllocator allocator); - + + VmaPool GetParentPool() const { return m_hParentPool; } VkDeviceMemory GetDeviceMemory() const { return m_hMemory; } uint32_t GetMemoryTypeIndex() const { return m_MemoryTypeIndex; } + uint32_t GetId() const { return m_Id; } void* GetMappedData() const { return m_pMappedData; } // Validates all data structures inside this object. If not valid, returns false. bool Validate() const; + VkResult CheckCorruption(VmaAllocator hAllocator); + // ppData can be null. VkResult Map(VmaAllocator hAllocator, uint32_t count, void** ppData); void Unmap(VmaAllocator hAllocator, uint32_t count); + VkResult WriteMagicValueAroundAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize); + VkResult ValidateMagicValueAroundAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize); + VkResult BindBufferMemory( const VmaAllocator hAllocator, const VmaAllocation hAllocation, - VkBuffer hBuffer); + VkDeviceSize allocationLocalOffset, + VkBuffer hBuffer, + const void* pNext); VkResult BindImageMemory( const VmaAllocator hAllocator, const VmaAllocation hAllocation, - VkImage hImage); + VkDeviceSize allocationLocalOffset, + VkImage hImage, + const void* pNext); private: + VmaPool m_hParentPool; // VK_NULL_HANDLE if not belongs to custom pool. uint32_t m_MemoryTypeIndex; + uint32_t m_Id; VkDeviceMemory m_hMemory; - // Protects access to m_hMemory so it's not used by multiple threads simultaneously, e.g. vkMapMemory, vkBindBufferMemory. - // Also protects m_MapCount, m_pMappedData. + /* + Protects access to m_hMemory so it is not used by multiple threads simultaneously, e.g. vkMapMemory, vkBindBufferMemory. + Also protects m_MapCount, m_pMappedData. + Allocations, deallocations, any change in m_pMetadata is protected by parent's VmaBlockVector::m_Mutex. + */ VMA_MUTEX m_Mutex; uint32_t m_MapCount; void* m_pMappedData; }; -struct VmaPointerLess +struct VmaDefragmentationMove { - bool operator()(const void* lhs, const void* rhs) const - { - return lhs < rhs; - } + size_t srcBlockIndex; + size_t dstBlockIndex; + VkDeviceSize srcOffset; + VkDeviceSize dstOffset; + VkDeviceSize size; + VmaAllocation hAllocation; + VmaDeviceMemoryBlock* pSrcBlock; + VmaDeviceMemoryBlock* pDstBlock; }; -class VmaDefragmentator; +class VmaDefragmentationAlgorithm; /* Sequence of VmaDeviceMemoryBlock. Represents memory blocks allocated for a specific @@ -4142,38 +5485,50 @@ Synchronized internally with a mutex. */ struct VmaBlockVector { + VMA_CLASS_NO_COPY(VmaBlockVector) +public: VmaBlockVector( VmaAllocator hAllocator, + VmaPool hParentPool, uint32_t memoryTypeIndex, VkDeviceSize preferredBlockSize, size_t minBlockCount, size_t maxBlockCount, VkDeviceSize bufferImageGranularity, uint32_t frameInUseCount, - bool isCustomPool); + bool explicitBlockSize, + uint32_t algorithm, + float priority, + VkDeviceSize minAllocationAlignment, + void* pMemoryAllocateNext); ~VmaBlockVector(); VkResult CreateMinBlocks(); + VmaAllocator GetAllocator() const { return m_hAllocator; } + VmaPool GetParentPool() const { return m_hParentPool; } + bool IsCustomPool() const { return m_hParentPool != VMA_NULL; } uint32_t GetMemoryTypeIndex() const { return m_MemoryTypeIndex; } VkDeviceSize GetPreferredBlockSize() const { return m_PreferredBlockSize; } VkDeviceSize GetBufferImageGranularity() const { return m_BufferImageGranularity; } uint32_t GetFrameInUseCount() const { return m_FrameInUseCount; } + uint32_t GetAlgorithm() const { return m_Algorithm; } void GetPoolStats(VmaPoolStats* pStats); - bool IsEmpty() const { return m_Blocks.empty(); } + bool IsEmpty(); + bool IsCorruptionDetectionEnabled() const; VkResult Allocate( - VmaPool hCurrentPool, uint32_t currentFrameIndex, - const VkMemoryRequirements& vkMemReq, + VkDeviceSize size, + VkDeviceSize alignment, const VmaAllocationCreateInfo& createInfo, VmaSuballocationType suballocType, - VmaAllocation* pAllocation); + size_t allocationCount, + VmaAllocation* pAllocations); - void Free( - VmaAllocation hAllocation); + void Free(const VmaAllocation hAllocation); // Adds statistics of this BlockVector to pStats. void AddStats(VmaStats* pStats); @@ -4185,39 +5540,62 @@ struct VmaBlockVector void MakePoolAllocationsLost( uint32_t currentFrameIndex, size_t* pLostAllocationCount); + VkResult CheckCorruption(); - VmaDefragmentator* EnsureDefragmentator( - VmaAllocator hAllocator, - uint32_t currentFrameIndex); + // Saves results in pCtx->res. + void Defragment( + class VmaBlockVectorDefragmentationContext* pCtx, + VmaDefragmentationStats* pStats, VmaDefragmentationFlags flags, + VkDeviceSize& maxCpuBytesToMove, uint32_t& maxCpuAllocationsToMove, + VkDeviceSize& maxGpuBytesToMove, uint32_t& maxGpuAllocationsToMove, + VkCommandBuffer commandBuffer); + void DefragmentationEnd( + class VmaBlockVectorDefragmentationContext* pCtx, + uint32_t flags, + VmaDefragmentationStats* pStats); - VkResult Defragment( - VmaDefragmentationStats* pDefragmentationStats, - VkDeviceSize& maxBytesToMove, - uint32_t& maxAllocationsToMove); + uint32_t ProcessDefragmentations( + class VmaBlockVectorDefragmentationContext *pCtx, + VmaDefragmentationPassMoveInfo* pMove, uint32_t maxMoves); - void DestroyDefragmentator(); + void CommitDefragmentations( + class VmaBlockVectorDefragmentationContext *pCtx, + VmaDefragmentationStats* pStats); + + //////////////////////////////////////////////////////////////////////////////// + // To be used only while the m_Mutex is locked. Used during defragmentation. + + size_t GetBlockCount() const { return m_Blocks.size(); } + VmaDeviceMemoryBlock* GetBlock(size_t index) const { return m_Blocks[index]; } + size_t CalcAllocationCount() const; + bool IsBufferImageGranularityConflictPossible() const; private: - friend class VmaDefragmentator; + friend class VmaDefragmentationAlgorithm_Generic; const VmaAllocator m_hAllocator; + const VmaPool m_hParentPool; const uint32_t m_MemoryTypeIndex; const VkDeviceSize m_PreferredBlockSize; const size_t m_MinBlockCount; const size_t m_MaxBlockCount; const VkDeviceSize m_BufferImageGranularity; const uint32_t m_FrameInUseCount; - const bool m_IsCustomPool; - VMA_MUTEX m_Mutex; + const bool m_ExplicitBlockSize; + const uint32_t m_Algorithm; + const float m_Priority; + const VkDeviceSize m_MinAllocationAlignment; + void* const m_pMemoryAllocateNext; + VMA_RW_MUTEX m_Mutex; + + /* There can be at most one allocation that is completely empty (except when minBlockCount > 0) - + a hysteresis to avoid pessimistic case of alternating creation and destruction of a VkDeviceMemory. */ + bool m_HasEmptyBlock; // Incrementally sorted by sumFreeSize, ascending. VmaVector< VmaDeviceMemoryBlock*, VmaStlAllocator > m_Blocks; - /* There can be at most one allocation that is completely empty - a - hysteresis to avoid pessimistic case of alternating creation and destruction - of a VkDeviceMemory. */ - bool m_HasEmptyBlock; - VmaDefragmentator* m_pDefragmentator; + uint32_t m_NextBlockId; - size_t CalcMaxBlockSize() const; + VkDeviceSize CalcMaxBlockSize() const; // Finds and removes given block from vector. void Remove(VmaDeviceMemoryBlock* pBlock); @@ -4226,34 +5604,126 @@ private: // after this call. void IncrementallySortBlocks(); + VkResult AllocatePage( + uint32_t currentFrameIndex, + VkDeviceSize size, + VkDeviceSize alignment, + const VmaAllocationCreateInfo& createInfo, + VmaSuballocationType suballocType, + VmaAllocation* pAllocation); + + // To be used only without CAN_MAKE_OTHER_LOST flag. + VkResult AllocateFromBlock( + VmaDeviceMemoryBlock* pBlock, + uint32_t currentFrameIndex, + VkDeviceSize size, + VkDeviceSize alignment, + VmaAllocationCreateFlags allocFlags, + void* pUserData, + VmaSuballocationType suballocType, + uint32_t strategy, + VmaAllocation* pAllocation); + VkResult CreateBlock(VkDeviceSize blockSize, size_t* pNewBlockIndex); + + // Saves result to pCtx->res. + void ApplyDefragmentationMovesCpu( + class VmaBlockVectorDefragmentationContext* pDefragCtx, + const VmaVector< VmaDefragmentationMove, VmaStlAllocator >& moves); + // Saves result to pCtx->res. + void ApplyDefragmentationMovesGpu( + class VmaBlockVectorDefragmentationContext* pDefragCtx, + VmaVector< VmaDefragmentationMove, VmaStlAllocator >& moves, + VkCommandBuffer commandBuffer); + + /* + Used during defragmentation. pDefragmentationStats is optional. It is in/out + - updated with new data. + */ + void FreeEmptyBlocks(VmaDefragmentationStats* pDefragmentationStats); + + void UpdateHasEmptyBlock(); }; struct VmaPool_T { + VMA_CLASS_NO_COPY(VmaPool_T) public: VmaBlockVector m_BlockVector; - // Takes ownership. VmaPool_T( VmaAllocator hAllocator, - const VmaPoolCreateInfo& createInfo); + const VmaPoolCreateInfo& createInfo, + VkDeviceSize preferredBlockSize); ~VmaPool_T(); - VmaBlockVector& GetBlockVector() { return m_BlockVector; } + uint32_t GetId() const { return m_Id; } + void SetId(uint32_t id) { VMA_ASSERT(m_Id == 0); m_Id = id; } + + const char* GetName() const { return m_Name; } + void SetName(const char* pName); #if VMA_STATS_STRING_ENABLED //void PrintDetailedMap(class VmaStringBuilder& sb); #endif + +private: + uint32_t m_Id; + char* m_Name; + VmaPool_T* m_PrevPool = VMA_NULL; + VmaPool_T* m_NextPool = VMA_NULL; + friend struct VmaPoolListItemTraits; }; -class VmaDefragmentator +struct VmaPoolListItemTraits { - const VmaAllocator m_hAllocator; + typedef VmaPool_T ItemType; + static ItemType* GetPrev(const ItemType* item) { return item->m_PrevPool; } + static ItemType* GetNext(const ItemType* item) { return item->m_NextPool; } + static ItemType*& AccessPrev(ItemType* item) { return item->m_PrevPool; } + static ItemType*& AccessNext(ItemType* item) { return item->m_NextPool; } +}; + +/* +Performs defragmentation: + +- Updates `pBlockVector->m_pMetadata`. +- Updates allocations by calling ChangeBlockAllocation() or ChangeOffset(). +- Does not move actual data, only returns requested moves as `moves`. +*/ +class VmaDefragmentationAlgorithm +{ + VMA_CLASS_NO_COPY(VmaDefragmentationAlgorithm) +public: + VmaDefragmentationAlgorithm( + VmaAllocator hAllocator, + VmaBlockVector* pBlockVector, + uint32_t currentFrameIndex) : + m_hAllocator(hAllocator), + m_pBlockVector(pBlockVector), + m_CurrentFrameIndex(currentFrameIndex) + { + } + virtual ~VmaDefragmentationAlgorithm() + { + } + + virtual void AddAllocation(VmaAllocation hAlloc, VkBool32* pChanged) = 0; + virtual void AddAll() = 0; + + virtual VkResult Defragment( + VmaVector< VmaDefragmentationMove, VmaStlAllocator >& moves, + VkDeviceSize maxBytesToMove, + uint32_t maxAllocationsToMove, + VmaDefragmentationFlags flags) = 0; + + virtual VkDeviceSize GetBytesMoved() const = 0; + virtual uint32_t GetAllocationsMoved() const = 0; + +protected: + VmaAllocator const m_hAllocator; VmaBlockVector* const m_pBlockVector; - uint32_t m_CurrentFrameIndex; - VkDeviceSize m_BytesMoved; - uint32_t m_AllocationsMoved; + const uint32_t m_CurrentFrameIndex; struct AllocationInfo { @@ -4265,7 +5735,43 @@ class VmaDefragmentator m_pChanged(VMA_NULL) { } + AllocationInfo(VmaAllocation hAlloc, VkBool32* pChanged) : + m_hAllocation(hAlloc), + m_pChanged(pChanged) + { + } }; +}; + +class VmaDefragmentationAlgorithm_Generic : public VmaDefragmentationAlgorithm +{ + VMA_CLASS_NO_COPY(VmaDefragmentationAlgorithm_Generic) +public: + VmaDefragmentationAlgorithm_Generic( + VmaAllocator hAllocator, + VmaBlockVector* pBlockVector, + uint32_t currentFrameIndex, + bool overlappingMoveSupported); + virtual ~VmaDefragmentationAlgorithm_Generic(); + + virtual void AddAllocation(VmaAllocation hAlloc, VkBool32* pChanged); + virtual void AddAll() { m_AllAllocations = true; } + + virtual VkResult Defragment( + VmaVector< VmaDefragmentationMove, VmaStlAllocator >& moves, + VkDeviceSize maxBytesToMove, + uint32_t maxAllocationsToMove, + VmaDefragmentationFlags flags); + + virtual VkDeviceSize GetBytesMoved() const { return m_BytesMoved; } + virtual uint32_t GetAllocationsMoved() const { return m_AllocationsMoved; } + +private: + uint32_t m_AllocationCount; + bool m_AllAllocations; + + VkDeviceSize m_BytesMoved; + uint32_t m_AllocationsMoved; struct AllocationInfoSizeGreater { @@ -4275,41 +5781,45 @@ class VmaDefragmentator } }; - // Used between AddAllocation and Defragment. - VmaVector< AllocationInfo, VmaStlAllocator > m_Allocations; + struct AllocationInfoOffsetGreater + { + bool operator()(const AllocationInfo& lhs, const AllocationInfo& rhs) const + { + return lhs.m_hAllocation->GetOffset() > rhs.m_hAllocation->GetOffset(); + } + }; struct BlockInfo { + size_t m_OriginalBlockIndex; VmaDeviceMemoryBlock* m_pBlock; bool m_HasNonMovableAllocations; VmaVector< AllocationInfo, VmaStlAllocator > m_Allocations; BlockInfo(const VkAllocationCallbacks* pAllocationCallbacks) : + m_OriginalBlockIndex(SIZE_MAX), m_pBlock(VMA_NULL), m_HasNonMovableAllocations(true), - m_Allocations(pAllocationCallbacks), - m_pMappedDataForDefragmentation(VMA_NULL) + m_Allocations(pAllocationCallbacks) { } void CalcHasNonMovableAllocations() { - const size_t blockAllocCount = m_pBlock->m_Metadata.GetAllocationCount(); + const size_t blockAllocCount = m_pBlock->m_pMetadata->GetAllocationCount(); const size_t defragmentAllocCount = m_Allocations.size(); m_HasNonMovableAllocations = blockAllocCount != defragmentAllocCount; } - void SortAllocationsBySizeDescecnding() + void SortAllocationsBySizeDescending() { VMA_SORT(m_Allocations.begin(), m_Allocations.end(), AllocationInfoSizeGreater()); } - VkResult EnsureMapping(VmaAllocator hAllocator, void** ppMappedData); - void Unmap(VmaAllocator hAllocator); - - private: - // Not null if mapped for defragmentation only, not originally mapped. - void* m_pMappedDataForDefragmentation; + void SortAllocationsByOffsetDescending() + { + VMA_SORT(m_Allocations.begin(), m_Allocations.end(), AllocationInfoOffsetGreater()); + } }; struct BlockPointerLess @@ -4338,7 +5848,7 @@ class VmaDefragmentator { return false; } - if(pLhsBlockInfo->m_pBlock->m_Metadata.GetSumFreeSize() < pRhsBlockInfo->m_pBlock->m_Metadata.GetSumFreeSize()) + if(pLhsBlockInfo->m_pBlock->m_pMetadata->GetSumFreeSize() < pRhsBlockInfo->m_pBlock->m_pMetadata->GetSumFreeSize()) { return true; } @@ -4350,44 +5860,497 @@ class VmaDefragmentator BlockInfoVector m_Blocks; VkResult DefragmentRound( + VmaVector< VmaDefragmentationMove, VmaStlAllocator >& moves, VkDeviceSize maxBytesToMove, - uint32_t maxAllocationsToMove); + uint32_t maxAllocationsToMove, + bool freeOldAllocations); + + size_t CalcBlocksWithNonMovableCount() const; static bool MoveMakesSense( size_t dstBlockIndex, VkDeviceSize dstOffset, size_t srcBlockIndex, VkDeviceSize srcOffset); +}; +class VmaDefragmentationAlgorithm_Fast : public VmaDefragmentationAlgorithm +{ + VMA_CLASS_NO_COPY(VmaDefragmentationAlgorithm_Fast) public: - VmaDefragmentator( + VmaDefragmentationAlgorithm_Fast( VmaAllocator hAllocator, VmaBlockVector* pBlockVector, - uint32_t currentFrameIndex); + uint32_t currentFrameIndex, + bool overlappingMoveSupported); + virtual ~VmaDefragmentationAlgorithm_Fast(); - ~VmaDefragmentator(); + virtual void AddAllocation(VmaAllocation hAlloc, VkBool32* pChanged) { ++m_AllocationCount; } + virtual void AddAll() { m_AllAllocations = true; } - VkDeviceSize GetBytesMoved() const { return m_BytesMoved; } - uint32_t GetAllocationsMoved() const { return m_AllocationsMoved; } + virtual VkResult Defragment( + VmaVector< VmaDefragmentationMove, VmaStlAllocator >& moves, + VkDeviceSize maxBytesToMove, + uint32_t maxAllocationsToMove, + VmaDefragmentationFlags flags); + + virtual VkDeviceSize GetBytesMoved() const { return m_BytesMoved; } + virtual uint32_t GetAllocationsMoved() const { return m_AllocationsMoved; } + +private: + struct BlockInfo + { + size_t origBlockIndex; + }; + + class FreeSpaceDatabase + { + public: + FreeSpaceDatabase() + { + FreeSpace s = {}; + s.blockInfoIndex = SIZE_MAX; + for(size_t i = 0; i < MAX_COUNT; ++i) + { + m_FreeSpaces[i] = s; + } + } + + void Register(size_t blockInfoIndex, VkDeviceSize offset, VkDeviceSize size) + { + if(size < VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER) + { + return; + } + + // Find first invalid or the smallest structure. + size_t bestIndex = SIZE_MAX; + for(size_t i = 0; i < MAX_COUNT; ++i) + { + // Empty structure. + if(m_FreeSpaces[i].blockInfoIndex == SIZE_MAX) + { + bestIndex = i; + break; + } + if(m_FreeSpaces[i].size < size && + (bestIndex == SIZE_MAX || m_FreeSpaces[bestIndex].size > m_FreeSpaces[i].size)) + { + bestIndex = i; + } + } + + if(bestIndex != SIZE_MAX) + { + m_FreeSpaces[bestIndex].blockInfoIndex = blockInfoIndex; + m_FreeSpaces[bestIndex].offset = offset; + m_FreeSpaces[bestIndex].size = size; + } + } + + bool Fetch(VkDeviceSize alignment, VkDeviceSize size, + size_t& outBlockInfoIndex, VkDeviceSize& outDstOffset) + { + size_t bestIndex = SIZE_MAX; + VkDeviceSize bestFreeSpaceAfter = 0; + for(size_t i = 0; i < MAX_COUNT; ++i) + { + // Structure is valid. + if(m_FreeSpaces[i].blockInfoIndex != SIZE_MAX) + { + const VkDeviceSize dstOffset = VmaAlignUp(m_FreeSpaces[i].offset, alignment); + // Allocation fits into this structure. + if(dstOffset + size <= m_FreeSpaces[i].offset + m_FreeSpaces[i].size) + { + const VkDeviceSize freeSpaceAfter = (m_FreeSpaces[i].offset + m_FreeSpaces[i].size) - + (dstOffset + size); + if(bestIndex == SIZE_MAX || freeSpaceAfter > bestFreeSpaceAfter) + { + bestIndex = i; + bestFreeSpaceAfter = freeSpaceAfter; + } + } + } + } + + if(bestIndex != SIZE_MAX) + { + outBlockInfoIndex = m_FreeSpaces[bestIndex].blockInfoIndex; + outDstOffset = VmaAlignUp(m_FreeSpaces[bestIndex].offset, alignment); + + if(bestFreeSpaceAfter >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER) + { + // Leave this structure for remaining empty space. + const VkDeviceSize alignmentPlusSize = (outDstOffset - m_FreeSpaces[bestIndex].offset) + size; + m_FreeSpaces[bestIndex].offset += alignmentPlusSize; + m_FreeSpaces[bestIndex].size -= alignmentPlusSize; + } + else + { + // This structure becomes invalid. + m_FreeSpaces[bestIndex].blockInfoIndex = SIZE_MAX; + } + + return true; + } + + return false; + } + + private: + static const size_t MAX_COUNT = 4; + + struct FreeSpace + { + size_t blockInfoIndex; // SIZE_MAX means this structure is invalid. + VkDeviceSize offset; + VkDeviceSize size; + } m_FreeSpaces[MAX_COUNT]; + }; + + const bool m_OverlappingMoveSupported; + + uint32_t m_AllocationCount; + bool m_AllAllocations; + + VkDeviceSize m_BytesMoved; + uint32_t m_AllocationsMoved; + + VmaVector< BlockInfo, VmaStlAllocator > m_BlockInfos; + + void PreprocessMetadata(); + void PostprocessMetadata(); + void InsertSuballoc(VmaBlockMetadata_Generic* pMetadata, const VmaSuballocation& suballoc); +}; + +struct VmaBlockDefragmentationContext +{ + enum BLOCK_FLAG + { + BLOCK_FLAG_USED = 0x00000001, + }; + uint32_t flags; + VkBuffer hBuffer; +}; + +class VmaBlockVectorDefragmentationContext +{ + VMA_CLASS_NO_COPY(VmaBlockVectorDefragmentationContext) +public: + VkResult res; + bool mutexLocked; + VmaVector< VmaBlockDefragmentationContext, VmaStlAllocator > blockContexts; + VmaVector< VmaDefragmentationMove, VmaStlAllocator > defragmentationMoves; + uint32_t defragmentationMovesProcessed; + uint32_t defragmentationMovesCommitted; + bool hasDefragmentationPlan; + + VmaBlockVectorDefragmentationContext( + VmaAllocator hAllocator, + VmaPool hCustomPool, // Optional. + VmaBlockVector* pBlockVector, + uint32_t currFrameIndex); + ~VmaBlockVectorDefragmentationContext(); + + VmaPool GetCustomPool() const { return m_hCustomPool; } + VmaBlockVector* GetBlockVector() const { return m_pBlockVector; } + VmaDefragmentationAlgorithm* GetAlgorithm() const { return m_pAlgorithm; } void AddAllocation(VmaAllocation hAlloc, VkBool32* pChanged); + void AddAll() { m_AllAllocations = true; } + void Begin(bool overlappingMoveSupported, VmaDefragmentationFlags flags); + +private: + const VmaAllocator m_hAllocator; + // Null if not from custom pool. + const VmaPool m_hCustomPool; + // Redundant, for convenience not to fetch from m_hCustomPool->m_BlockVector or m_hAllocator->m_pBlockVectors. + VmaBlockVector* const m_pBlockVector; + const uint32_t m_CurrFrameIndex; + // Owner of this object. + VmaDefragmentationAlgorithm* m_pAlgorithm; + + struct AllocInfo + { + VmaAllocation hAlloc; + VkBool32* pChanged; + }; + // Used between constructor and Begin. + VmaVector< AllocInfo, VmaStlAllocator > m_Allocations; + bool m_AllAllocations; +}; + +struct VmaDefragmentationContext_T +{ +private: + VMA_CLASS_NO_COPY(VmaDefragmentationContext_T) +public: + VmaDefragmentationContext_T( + VmaAllocator hAllocator, + uint32_t currFrameIndex, + uint32_t flags, + VmaDefragmentationStats* pStats); + ~VmaDefragmentationContext_T(); + + void AddPools(uint32_t poolCount, const VmaPool* pPools); + void AddAllocations( + uint32_t allocationCount, + const VmaAllocation* pAllocations, + VkBool32* pAllocationsChanged); + + /* + Returns: + - `VK_SUCCESS` if succeeded and object can be destroyed immediately. + - `VK_NOT_READY` if succeeded but the object must remain alive until vmaDefragmentationEnd(). + - Negative value if error occurred and object can be destroyed immediately. + */ VkResult Defragment( - VkDeviceSize maxBytesToMove, - uint32_t maxAllocationsToMove); + VkDeviceSize maxCpuBytesToMove, uint32_t maxCpuAllocationsToMove, + VkDeviceSize maxGpuBytesToMove, uint32_t maxGpuAllocationsToMove, + VkCommandBuffer commandBuffer, VmaDefragmentationStats* pStats, VmaDefragmentationFlags flags); + + VkResult DefragmentPassBegin(VmaDefragmentationPassInfo* pInfo); + VkResult DefragmentPassEnd(); + +private: + const VmaAllocator m_hAllocator; + const uint32_t m_CurrFrameIndex; + const uint32_t m_Flags; + VmaDefragmentationStats* const m_pStats; + + VkDeviceSize m_MaxCpuBytesToMove; + uint32_t m_MaxCpuAllocationsToMove; + VkDeviceSize m_MaxGpuBytesToMove; + uint32_t m_MaxGpuAllocationsToMove; + + // Owner of these objects. + VmaBlockVectorDefragmentationContext* m_DefaultPoolContexts[VK_MAX_MEMORY_TYPES]; + // Owner of these objects. + VmaVector< VmaBlockVectorDefragmentationContext*, VmaStlAllocator > m_CustomPoolContexts; +}; + +#if VMA_RECORDING_ENABLED + +class VmaRecorder +{ +public: + VmaRecorder(); + VkResult Init(const VmaRecordSettings& settings, bool useMutex); + void WriteConfiguration( + const VkPhysicalDeviceProperties& devProps, + const VkPhysicalDeviceMemoryProperties& memProps, + uint32_t vulkanApiVersion, + bool dedicatedAllocationExtensionEnabled, + bool bindMemory2ExtensionEnabled, + bool memoryBudgetExtensionEnabled, + bool deviceCoherentMemoryExtensionEnabled); + ~VmaRecorder(); + + void RecordCreateAllocator(uint32_t frameIndex); + void RecordDestroyAllocator(uint32_t frameIndex); + void RecordCreatePool(uint32_t frameIndex, + const VmaPoolCreateInfo& createInfo, + VmaPool pool); + void RecordDestroyPool(uint32_t frameIndex, VmaPool pool); + void RecordAllocateMemory(uint32_t frameIndex, + const VkMemoryRequirements& vkMemReq, + const VmaAllocationCreateInfo& createInfo, + VmaAllocation allocation); + void RecordAllocateMemoryPages(uint32_t frameIndex, + const VkMemoryRequirements& vkMemReq, + const VmaAllocationCreateInfo& createInfo, + uint64_t allocationCount, + const VmaAllocation* pAllocations); + void RecordAllocateMemoryForBuffer(uint32_t frameIndex, + const VkMemoryRequirements& vkMemReq, + bool requiresDedicatedAllocation, + bool prefersDedicatedAllocation, + const VmaAllocationCreateInfo& createInfo, + VmaAllocation allocation); + void RecordAllocateMemoryForImage(uint32_t frameIndex, + const VkMemoryRequirements& vkMemReq, + bool requiresDedicatedAllocation, + bool prefersDedicatedAllocation, + const VmaAllocationCreateInfo& createInfo, + VmaAllocation allocation); + void RecordFreeMemory(uint32_t frameIndex, + VmaAllocation allocation); + void RecordFreeMemoryPages(uint32_t frameIndex, + uint64_t allocationCount, + const VmaAllocation* pAllocations); + void RecordSetAllocationUserData(uint32_t frameIndex, + VmaAllocation allocation, + const void* pUserData); + void RecordCreateLostAllocation(uint32_t frameIndex, + VmaAllocation allocation); + void RecordMapMemory(uint32_t frameIndex, + VmaAllocation allocation); + void RecordUnmapMemory(uint32_t frameIndex, + VmaAllocation allocation); + void RecordFlushAllocation(uint32_t frameIndex, + VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size); + void RecordInvalidateAllocation(uint32_t frameIndex, + VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size); + void RecordCreateBuffer(uint32_t frameIndex, + const VkBufferCreateInfo& bufCreateInfo, + const VmaAllocationCreateInfo& allocCreateInfo, + VmaAllocation allocation); + void RecordCreateImage(uint32_t frameIndex, + const VkImageCreateInfo& imageCreateInfo, + const VmaAllocationCreateInfo& allocCreateInfo, + VmaAllocation allocation); + void RecordDestroyBuffer(uint32_t frameIndex, + VmaAllocation allocation); + void RecordDestroyImage(uint32_t frameIndex, + VmaAllocation allocation); + void RecordTouchAllocation(uint32_t frameIndex, + VmaAllocation allocation); + void RecordGetAllocationInfo(uint32_t frameIndex, + VmaAllocation allocation); + void RecordMakePoolAllocationsLost(uint32_t frameIndex, + VmaPool pool); + void RecordDefragmentationBegin(uint32_t frameIndex, + const VmaDefragmentationInfo2& info, + VmaDefragmentationContext ctx); + void RecordDefragmentationEnd(uint32_t frameIndex, + VmaDefragmentationContext ctx); + void RecordSetPoolName(uint32_t frameIndex, + VmaPool pool, + const char* name); + +private: + struct CallParams + { + uint32_t threadId; + double time; + }; + + class UserDataString + { + public: + UserDataString(VmaAllocationCreateFlags allocFlags, const void* pUserData); + const char* GetString() const { return m_Str; } + + private: + char m_PtrStr[17]; + const char* m_Str; + }; + + bool m_UseMutex; + VmaRecordFlags m_Flags; + FILE* m_File; + VMA_MUTEX m_FileMutex; + std::chrono::time_point m_RecordingStartTime; + + void GetBasicParams(CallParams& outParams); + + // T must be a pointer type, e.g. VmaAllocation, VmaPool. + template + void PrintPointerList(uint64_t count, const T* pItems) + { + if(count) + { + fprintf(m_File, "%p", pItems[0]); + for(uint64_t i = 1; i < count; ++i) + { + fprintf(m_File, " %p", pItems[i]); + } + } + } + + void PrintPointerList(uint64_t count, const VmaAllocation* pItems); + void Flush(); +}; + +#endif // #if VMA_RECORDING_ENABLED + +/* +Thread-safe wrapper over VmaPoolAllocator free list, for allocation of VmaAllocation_T objects. +*/ +class VmaAllocationObjectAllocator +{ + VMA_CLASS_NO_COPY(VmaAllocationObjectAllocator) +public: + VmaAllocationObjectAllocator(const VkAllocationCallbacks* pAllocationCallbacks); + + template VmaAllocation Allocate(Types&&... args); + void Free(VmaAllocation hAlloc); + +private: + VMA_MUTEX m_Mutex; + VmaPoolAllocator m_Allocator; +}; + +struct VmaCurrentBudgetData +{ + VMA_ATOMIC_UINT64 m_BlockBytes[VK_MAX_MEMORY_HEAPS]; + VMA_ATOMIC_UINT64 m_AllocationBytes[VK_MAX_MEMORY_HEAPS]; + +#if VMA_MEMORY_BUDGET + VMA_ATOMIC_UINT32 m_OperationsSinceBudgetFetch; + VMA_RW_MUTEX m_BudgetMutex; + uint64_t m_VulkanUsage[VK_MAX_MEMORY_HEAPS]; + uint64_t m_VulkanBudget[VK_MAX_MEMORY_HEAPS]; + uint64_t m_BlockBytesAtBudgetFetch[VK_MAX_MEMORY_HEAPS]; +#endif // #if VMA_MEMORY_BUDGET + + VmaCurrentBudgetData() + { + for(uint32_t heapIndex = 0; heapIndex < VK_MAX_MEMORY_HEAPS; ++heapIndex) + { + m_BlockBytes[heapIndex] = 0; + m_AllocationBytes[heapIndex] = 0; +#if VMA_MEMORY_BUDGET + m_VulkanUsage[heapIndex] = 0; + m_VulkanBudget[heapIndex] = 0; + m_BlockBytesAtBudgetFetch[heapIndex] = 0; +#endif + } + +#if VMA_MEMORY_BUDGET + m_OperationsSinceBudgetFetch = 0; +#endif + } + + void AddAllocation(uint32_t heapIndex, VkDeviceSize allocationSize) + { + m_AllocationBytes[heapIndex] += allocationSize; +#if VMA_MEMORY_BUDGET + ++m_OperationsSinceBudgetFetch; +#endif + } + + void RemoveAllocation(uint32_t heapIndex, VkDeviceSize allocationSize) + { + VMA_ASSERT(m_AllocationBytes[heapIndex] >= allocationSize); // DELME + m_AllocationBytes[heapIndex] -= allocationSize; +#if VMA_MEMORY_BUDGET + ++m_OperationsSinceBudgetFetch; +#endif + } }; // Main allocator object. struct VmaAllocator_T { + VMA_CLASS_NO_COPY(VmaAllocator_T) +public: bool m_UseMutex; - bool m_UseKhrDedicatedAllocation; + uint32_t m_VulkanApiVersion; + bool m_UseKhrDedicatedAllocation; // Can be set only if m_VulkanApiVersion < VK_MAKE_VERSION(1, 1, 0). + bool m_UseKhrBindMemory2; // Can be set only if m_VulkanApiVersion < VK_MAKE_VERSION(1, 1, 0). + bool m_UseExtMemoryBudget; + bool m_UseAmdDeviceCoherentMemory; + bool m_UseKhrBufferDeviceAddress; + bool m_UseExtMemoryPriority; VkDevice m_hDevice; + VkInstance m_hInstance; bool m_AllocationCallbacksSpecified; VkAllocationCallbacks m_AllocationCallbacks; VmaDeviceMemoryCallbacks m_DeviceMemoryCallbacks; - - // Number of bytes free out of limit, or VK_WHOLE_SIZE if not limit for that heap. - VkDeviceSize m_HeapSizeLimit[VK_MAX_MEMORY_HEAPS]; - VMA_MUTEX m_HeapSizeLimitMutex; + VmaAllocationObjectAllocator m_AllocationObjectAllocator; + + // Each bit (1 << i) is set if HeapSizeLimit is enabled for that heap, so cannot allocate more than the heap size. + uint32_t m_HeapSizeLimitMask; VkPhysicalDeviceProperties m_PhysicalDeviceProperties; VkPhysicalDeviceMemoryProperties m_MemProps; @@ -4395,12 +6358,15 @@ struct VmaAllocator_T // Default pools. VmaBlockVector* m_pBlockVectors[VK_MAX_MEMORY_TYPES]; - // Each vector is sorted by memory (handle value). - typedef VmaVector< VmaAllocation, VmaStlAllocator > AllocationVectorType; - AllocationVectorType* m_pDedicatedAllocations[VK_MAX_MEMORY_TYPES]; - VMA_MUTEX m_DedicatedAllocationsMutex[VK_MAX_MEMORY_TYPES]; + typedef VmaIntrusiveLinkedList DedicatedAllocationLinkedList; + DedicatedAllocationLinkedList m_DedicatedAllocations[VK_MAX_MEMORY_TYPES]; + VMA_RW_MUTEX m_DedicatedAllocationsMutex[VK_MAX_MEMORY_TYPES]; + + VmaCurrentBudgetData m_Budget; + VMA_ATOMIC_UINT32 m_DeviceMemoryCount; // Total number of VkDeviceMemory objects. VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo); + VkResult Init(const VmaAllocatorCreateInfo* pCreateInfo); ~VmaAllocator_T(); const VkAllocationCallbacks* GetAllocationCallbacks() const @@ -4412,6 +6378,8 @@ struct VmaAllocator_T return m_VulkanFunctions; } + VkPhysicalDevice GetPhysicalDevice() const { return m_PhysicalDevice; } + VkDeviceSize GetBufferImageGranularity() const { return VMA_MAX( @@ -4427,6 +6395,30 @@ struct VmaAllocator_T VMA_ASSERT(memTypeIndex < m_MemProps.memoryTypeCount); return m_MemProps.memoryTypes[memTypeIndex].heapIndex; } + // True when specific memory type is HOST_VISIBLE but not HOST_COHERENT. + bool IsMemoryTypeNonCoherent(uint32_t memTypeIndex) const + { + return (m_MemProps.memoryTypes[memTypeIndex].propertyFlags & (VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)) == + VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT; + } + // Minimum alignment for all allocations in specific memory type. + VkDeviceSize GetMemoryTypeMinAlignment(uint32_t memTypeIndex) const + { + return IsMemoryTypeNonCoherent(memTypeIndex) ? + VMA_MAX((VkDeviceSize)VMA_MIN_ALIGNMENT, m_PhysicalDeviceProperties.limits.nonCoherentAtomSize) : + (VkDeviceSize)VMA_MIN_ALIGNMENT; + } + + bool IsIntegratedGpu() const + { + return m_PhysicalDeviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU; + } + + uint32_t GetGlobalMemoryTypeBits() const { return m_GlobalMemoryTypeBits; } + +#if VMA_RECORDING_ENABLED + VmaRecorder* GetRecorder() const { return m_pRecorder; } +#endif void GetBufferMemoryRequirements( VkBuffer hBuffer, @@ -4445,26 +6437,39 @@ struct VmaAllocator_T bool requiresDedicatedAllocation, bool prefersDedicatedAllocation, VkBuffer dedicatedBuffer, + VkBufferUsageFlags dedicatedBufferUsage, // UINT32_MAX when unknown. VkImage dedicatedImage, const VmaAllocationCreateInfo& createInfo, VmaSuballocationType suballocType, - VmaAllocation* pAllocation); + size_t allocationCount, + VmaAllocation* pAllocations); // Main deallocation function. - void FreeMemory(const VmaAllocation allocation); + void FreeMemory( + size_t allocationCount, + const VmaAllocation* pAllocations); void CalculateStats(VmaStats* pStats); + void GetBudget( + VmaBudget* outBudget, uint32_t firstHeap, uint32_t heapCount); + #if VMA_STATS_STRING_ENABLED void PrintDetailedMap(class VmaJsonWriter& json); #endif - VkResult Defragment( - VmaAllocation* pAllocations, - size_t allocationCount, - VkBool32* pAllocationsChanged, - const VmaDefragmentationInfo* pDefragmentationInfo, - VmaDefragmentationStats* pDefragmentationStats); + VkResult DefragmentationBegin( + const VmaDefragmentationInfo2& info, + VmaDefragmentationStats* pStats, + VmaDefragmentationContext* pContext); + VkResult DefragmentationEnd( + VmaDefragmentationContext context); + + VkResult DefragmentationPassBegin( + VmaDefragmentationPassInfo* pInfo, + VmaDefragmentationContext context); + VkResult DefragmentationPassEnd( + VmaDefragmentationContext context); void GetAllocationInfo(VmaAllocation hAllocation, VmaAllocationInfo* pAllocationInfo); bool TouchAllocation(VmaAllocation hAllocation); @@ -4474,62 +6479,171 @@ struct VmaAllocator_T void GetPoolStats(VmaPool pool, VmaPoolStats* pPoolStats); void SetCurrentFrameIndex(uint32_t frameIndex); + uint32_t GetCurrentFrameIndex() const { return m_CurrentFrameIndex.load(); } void MakePoolAllocationsLost( VmaPool hPool, size_t* pLostAllocationCount); + VkResult CheckPoolCorruption(VmaPool hPool); + VkResult CheckCorruption(uint32_t memoryTypeBits); void CreateLostAllocation(VmaAllocation* pAllocation); + // Call to Vulkan function vkAllocateMemory with accompanying bookkeeping. VkResult AllocateVulkanMemory(const VkMemoryAllocateInfo* pAllocateInfo, VkDeviceMemory* pMemory); + // Call to Vulkan function vkFreeMemory with accompanying bookkeeping. void FreeVulkanMemory(uint32_t memoryType, VkDeviceSize size, VkDeviceMemory hMemory); + // Call to Vulkan function vkBindBufferMemory or vkBindBufferMemory2KHR. + VkResult BindVulkanBuffer( + VkDeviceMemory memory, + VkDeviceSize memoryOffset, + VkBuffer buffer, + const void* pNext); + // Call to Vulkan function vkBindImageMemory or vkBindImageMemory2KHR. + VkResult BindVulkanImage( + VkDeviceMemory memory, + VkDeviceSize memoryOffset, + VkImage image, + const void* pNext); VkResult Map(VmaAllocation hAllocation, void** ppData); void Unmap(VmaAllocation hAllocation); - VkResult BindBufferMemory(VmaAllocation hAllocation, VkBuffer hBuffer); - VkResult BindImageMemory(VmaAllocation hAllocation, VkImage hImage); + VkResult BindBufferMemory( + VmaAllocation hAllocation, + VkDeviceSize allocationLocalOffset, + VkBuffer hBuffer, + const void* pNext); + VkResult BindImageMemory( + VmaAllocation hAllocation, + VkDeviceSize allocationLocalOffset, + VkImage hImage, + const void* pNext); + + VkResult FlushOrInvalidateAllocation( + VmaAllocation hAllocation, + VkDeviceSize offset, VkDeviceSize size, + VMA_CACHE_OPERATION op); + VkResult FlushOrInvalidateAllocations( + uint32_t allocationCount, + const VmaAllocation* allocations, + const VkDeviceSize* offsets, const VkDeviceSize* sizes, + VMA_CACHE_OPERATION op); + + void FillAllocation(const VmaAllocation hAllocation, uint8_t pattern); + + /* + Returns bit mask of memory types that can support defragmentation on GPU as + they support creation of required buffer for copy operations. + */ + uint32_t GetGpuDefragmentationMemoryTypeBits(); + +#if VMA_EXTERNAL_MEMORY + VkExternalMemoryHandleTypeFlagsKHR GetExternalMemoryHandleTypeFlags(uint32_t memTypeIndex) const + { + return m_TypeExternalMemoryHandleTypes[memTypeIndex]; + } +#endif // #if VMA_EXTERNAL_MEMORY private: VkDeviceSize m_PreferredLargeHeapBlockSize; VkPhysicalDevice m_PhysicalDevice; VMA_ATOMIC_UINT32 m_CurrentFrameIndex; - - VMA_MUTEX m_PoolsMutex; - // Protected by m_PoolsMutex. Sorted by pointer value. - VmaVector > m_Pools; + VMA_ATOMIC_UINT32 m_GpuDefragmentationMemoryTypeBits; // UINT32_MAX means uninitialized. +#if VMA_EXTERNAL_MEMORY + VkExternalMemoryHandleTypeFlagsKHR m_TypeExternalMemoryHandleTypes[VK_MAX_MEMORY_TYPES]; +#endif // #if VMA_EXTERNAL_MEMORY + + VMA_RW_MUTEX m_PoolsMutex; + typedef VmaIntrusiveLinkedList PoolList; + // Protected by m_PoolsMutex. + PoolList m_Pools; + uint32_t m_NextPoolId; VmaVulkanFunctions m_VulkanFunctions; + // Global bit mask AND-ed with any memoryTypeBits to disallow certain memory types. + uint32_t m_GlobalMemoryTypeBits; + +#if VMA_RECORDING_ENABLED + VmaRecorder* m_pRecorder; +#endif + void ImportVulkanFunctions(const VmaVulkanFunctions* pVulkanFunctions); +#if VMA_STATIC_VULKAN_FUNCTIONS == 1 + void ImportVulkanFunctions_Static(); +#endif + + void ImportVulkanFunctions_Custom(const VmaVulkanFunctions* pVulkanFunctions); + +#if VMA_DYNAMIC_VULKAN_FUNCTIONS == 1 + void ImportVulkanFunctions_Dynamic(); +#endif + + void ValidateVulkanFunctions(); + VkDeviceSize CalcPreferredBlockSize(uint32_t memTypeIndex); VkResult AllocateMemoryOfType( - const VkMemoryRequirements& vkMemReq, + VkDeviceSize size, + VkDeviceSize alignment, bool dedicatedAllocation, VkBuffer dedicatedBuffer, + VkBufferUsageFlags dedicatedBufferUsage, VkImage dedicatedImage, const VmaAllocationCreateInfo& createInfo, uint32_t memTypeIndex, VmaSuballocationType suballocType, + size_t allocationCount, + VmaAllocation* pAllocations); + + // Helper function only to be used inside AllocateDedicatedMemory. + VkResult AllocateDedicatedMemoryPage( + VkDeviceSize size, + VmaSuballocationType suballocType, + uint32_t memTypeIndex, + const VkMemoryAllocateInfo& allocInfo, + bool map, + bool isUserDataString, + void* pUserData, VmaAllocation* pAllocation); - // Allocates and registers new VkDeviceMemory specifically for single allocation. + // Allocates and registers new VkDeviceMemory specifically for dedicated allocations. VkResult AllocateDedicatedMemory( VkDeviceSize size, VmaSuballocationType suballocType, uint32_t memTypeIndex, + bool withinBudget, bool map, bool isUserDataString, void* pUserData, + float priority, VkBuffer dedicatedBuffer, + VkBufferUsageFlags dedicatedBufferUsage, VkImage dedicatedImage, - VmaAllocation* pAllocation); + size_t allocationCount, + VmaAllocation* pAllocations); - // Tries to free pMemory as Dedicated Memory. Returns true if found and freed. - void FreeDedicatedMemory(VmaAllocation allocation); + void FreeDedicatedMemory(const VmaAllocation allocation); + + /* + Calculates and returns bit mask of memory types that can support defragmentation + on GPU as they support creation of required buffer for copy operations. + */ + uint32_t CalculateGpuDefragmentationMemoryTypeBits() const; + + uint32_t CalculateGlobalMemoryTypeBits() const; + + bool GetFlushOrInvalidateRange( + VmaAllocation allocation, + VkDeviceSize offset, VkDeviceSize size, + VkMappedMemoryRange& outRange) const; + +#if VMA_MEMORY_BUDGET + void UpdateVulkanBudget(); +#endif // #if VMA_MEMORY_BUDGET }; //////////////////////////////////////////////////////////////////////////////// @@ -4615,15 +6729,29 @@ void VmaStringBuilder::Add(const char* pStr) void VmaStringBuilder::AddNumber(uint32_t num) { char buf[11]; - VmaUint32ToStr(buf, sizeof(buf), num); - Add(buf); + buf[10] = '\0'; + char *p = &buf[10]; + do + { + *--p = '0' + (num % 10); + num /= 10; + } + while(num); + Add(p); } void VmaStringBuilder::AddNumber(uint64_t num) { char buf[21]; - VmaUint64ToStr(buf, sizeof(buf), num); - Add(buf); + buf[20] = '\0'; + char *p = &buf[20]; + do + { + *--p = '0' + (num % 10); + num /= 10; + } + while(num); + Add(p); } void VmaStringBuilder::AddPointer(const void* ptr) @@ -4642,16 +6770,17 @@ void VmaStringBuilder::AddPointer(const void* ptr) class VmaJsonWriter { + VMA_CLASS_NO_COPY(VmaJsonWriter) public: VmaJsonWriter(const VkAllocationCallbacks* pAllocationCallbacks, VmaStringBuilder& sb); ~VmaJsonWriter(); void BeginObject(bool singleLine = false); void EndObject(); - + void BeginArray(bool singleLine = false); void EndArray(); - + void WriteString(const char* pStr); void BeginString(const char* pStr = VMA_NULL); void ContinueString(const char* pStr); @@ -4659,7 +6788,7 @@ public: void ContinueString(uint64_t n); void ContinueString_Pointer(const void* ptr); void EndString(const char* pStr = VMA_NULL); - + void WriteNumber(uint32_t n); void WriteNumber(uint64_t n); void WriteBool(bool b); @@ -4780,7 +6909,7 @@ void VmaJsonWriter::ContinueString(const char* pStr) for(size_t i = 0; i < strLen; ++i) { char ch = pStr[i]; - if(ch == '\'') + if(ch == '\\') { m_SB.Add("\\\\"); } @@ -4907,7 +7036,7 @@ void VmaJsonWriter::WriteIndent(bool oneLess) if(!m_Stack.empty() && !m_Stack.back().singleLineMode) { m_SB.AddNewLine(); - + size_t count = m_Stack.size(); if(count > 0 && oneLess) { @@ -4934,11 +7063,7 @@ void VmaAllocation_T::SetUserData(VmaAllocator hAllocator, void* pUserData) if(pUserData != VMA_NULL) { - const char* const newStrSrc = (char*)pUserData; - const size_t newStrLen = strlen(newStrSrc); - char* const newStrDst = vma_new_array(hAllocator, char, newStrLen + 1); - memcpy(newStrDst, newStrSrc, newStrLen + 1); - m_pUserData = newStrDst; + m_pUserData = VmaCreateStringCopy(hAllocator->GetAllocationCallbacks(), (const char*)pUserData); } } else @@ -4969,6 +7094,12 @@ void VmaAllocation_T::ChangeBlockAllocation( m_BlockAllocation.m_Offset = offset; } +void VmaAllocation_T::ChangeOffset(VkDeviceSize newOffset) +{ + VMA_ASSERT(m_Type == ALLOCATION_TYPE_BLOCK); + m_BlockAllocation.m_Offset = newOffset; +} + VkDeviceSize VmaAllocation_T::GetOffset() const { switch(m_Type) @@ -4997,20 +7128,6 @@ VkDeviceMemory VmaAllocation_T::GetMemory() const } } -uint32_t VmaAllocation_T::GetMemoryTypeIndex() const -{ - switch(m_Type) - { - case ALLOCATION_TYPE_BLOCK: - return m_BlockAllocation.m_Block->GetMemoryTypeIndex(); - case ALLOCATION_TYPE_DEDICATED: - return m_DedicatedAllocation.m_MemoryTypeIndex; - default: - VMA_ASSERT(0); - return UINT32_MAX; - } -} - void* VmaAllocation_T::GetMappedData() const { switch(m_Type) @@ -5050,12 +7167,6 @@ bool VmaAllocation_T::CanBecomeLost() const } } -VmaPool VmaAllocation_T::GetPool() const -{ - VMA_ASSERT(m_Type == ALLOCATION_TYPE_BLOCK); - return m_BlockAllocation.m_hPool; -} - bool VmaAllocation_T::MakeLost(uint32_t currentFrameIndex, uint32_t frameInUseCount) { VMA_ASSERT(CanBecomeLost()); @@ -5088,16 +7199,61 @@ bool VmaAllocation_T::MakeLost(uint32_t currentFrameIndex, uint32_t frameInUseCo } } +#if VMA_STATS_STRING_ENABLED + +// Correspond to values of enum VmaSuballocationType. +static const char* VMA_SUBALLOCATION_TYPE_NAMES[] = { + "FREE", + "UNKNOWN", + "BUFFER", + "IMAGE_UNKNOWN", + "IMAGE_LINEAR", + "IMAGE_OPTIMAL", +}; + +void VmaAllocation_T::PrintParameters(class VmaJsonWriter& json) const +{ + json.WriteString("Type"); + json.WriteString(VMA_SUBALLOCATION_TYPE_NAMES[m_SuballocationType]); + + json.WriteString("Size"); + json.WriteNumber(m_Size); + + if(m_pUserData != VMA_NULL) + { + json.WriteString("UserData"); + if(IsUserDataString()) + { + json.WriteString((const char*)m_pUserData); + } + else + { + json.BeginString(); + json.ContinueString_Pointer(m_pUserData); + json.EndString(); + } + } + + json.WriteString("CreationFrameIndex"); + json.WriteNumber(m_CreationFrameIndex); + + json.WriteString("LastUseFrameIndex"); + json.WriteNumber(GetLastUseFrameIndex()); + + if(m_BufferImageUsage != 0) + { + json.WriteString("Usage"); + json.WriteNumber(m_BufferImageUsage); + } +} + +#endif + void VmaAllocation_T::FreeUserDataString(VmaAllocator hAllocator) { VMA_ASSERT(IsUserDataString()); - if(m_pUserData != VMA_NULL) - { - char* const oldStr = (char*)m_pUserData; - const size_t oldStrLen = strlen(oldStr); - vma_delete_array(hAllocator, oldStr, oldStrLen + 1); - m_pUserData = VMA_NULL; - } + VmaFreeString(hAllocator->GetAllocationCallbacks(), (char*)m_pUserData); + m_pUserData = VMA_NULL; } void VmaAllocation_T::BlockAllocMap() @@ -5188,16 +7344,6 @@ void VmaAllocation_T::DedicatedAllocUnmap(VmaAllocator hAllocator) #if VMA_STATS_STRING_ENABLED -// Correspond to values of enum VmaSuballocationType. -static const char* VMA_SUBALLOCATION_TYPE_NAMES[] = { - "FREE", - "UNKNOWN", - "BUFFER", - "IMAGE_UNKNOWN", - "IMAGE_LINEAR", - "IMAGE_OPTIMAL", -}; - static void VmaPrintStatInfo(VmaJsonWriter& json, const VmaStatInfo& stat) { json.BeginObject(); @@ -5264,11 +7410,86 @@ struct VmaSuballocationItemSizeLess } }; + //////////////////////////////////////////////////////////////////////////////// // class VmaBlockMetadata VmaBlockMetadata::VmaBlockMetadata(VmaAllocator hAllocator) : m_Size(0), + m_pAllocationCallbacks(hAllocator->GetAllocationCallbacks()) +{ +} + +#if VMA_STATS_STRING_ENABLED + +void VmaBlockMetadata::PrintDetailedMap_Begin(class VmaJsonWriter& json, + VkDeviceSize unusedBytes, + size_t allocationCount, + size_t unusedRangeCount) const +{ + json.BeginObject(); + + json.WriteString("TotalBytes"); + json.WriteNumber(GetSize()); + + json.WriteString("UnusedBytes"); + json.WriteNumber(unusedBytes); + + json.WriteString("Allocations"); + json.WriteNumber((uint64_t)allocationCount); + + json.WriteString("UnusedRanges"); + json.WriteNumber((uint64_t)unusedRangeCount); + + json.WriteString("Suballocations"); + json.BeginArray(); +} + +void VmaBlockMetadata::PrintDetailedMap_Allocation(class VmaJsonWriter& json, + VkDeviceSize offset, + VmaAllocation hAllocation) const +{ + json.BeginObject(true); + + json.WriteString("Offset"); + json.WriteNumber(offset); + + hAllocation->PrintParameters(json); + + json.EndObject(); +} + +void VmaBlockMetadata::PrintDetailedMap_UnusedRange(class VmaJsonWriter& json, + VkDeviceSize offset, + VkDeviceSize size) const +{ + json.BeginObject(true); + + json.WriteString("Offset"); + json.WriteNumber(offset); + + json.WriteString("Type"); + json.WriteString(VMA_SUBALLOCATION_TYPE_NAMES[VMA_SUBALLOCATION_TYPE_FREE]); + + json.WriteString("Size"); + json.WriteNumber(size); + + json.EndObject(); +} + +void VmaBlockMetadata::PrintDetailedMap_End(class VmaJsonWriter& json) const +{ + json.EndArray(); + json.EndObject(); +} + +#endif // #if VMA_STATS_STRING_ENABLED + +//////////////////////////////////////////////////////////////////////////////// +// class VmaBlockMetadata_Generic + +VmaBlockMetadata_Generic::VmaBlockMetadata_Generic(VmaAllocator hAllocator) : + VmaBlockMetadata(hAllocator), m_FreeCount(0), m_SumFreeSize(0), m_Suballocations(VmaStlAllocator(hAllocator->GetAllocationCallbacks())), @@ -5276,13 +7497,14 @@ VmaBlockMetadata::VmaBlockMetadata(VmaAllocator hAllocator) : { } -VmaBlockMetadata::~VmaBlockMetadata() +VmaBlockMetadata_Generic::~VmaBlockMetadata_Generic() { } -void VmaBlockMetadata::Init(VkDeviceSize size) +void VmaBlockMetadata_Generic::Init(VkDeviceSize size) { - m_Size = size; + VmaBlockMetadata::Init(size); + m_FreeCount = 1; m_SumFreeSize = size; @@ -5292,20 +7514,18 @@ void VmaBlockMetadata::Init(VkDeviceSize size) suballoc.type = VMA_SUBALLOCATION_TYPE_FREE; suballoc.hAllocation = VK_NULL_HANDLE; + VMA_ASSERT(size > VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER); m_Suballocations.push_back(suballoc); VmaSuballocationList::iterator suballocItem = m_Suballocations.end(); --suballocItem; m_FreeSuballocationsBySize.push_back(suballocItem); } -bool VmaBlockMetadata::Validate() const +bool VmaBlockMetadata_Generic::Validate() const { - if(m_Suballocations.empty()) - { - return false; - } - - // Expected offset of new suballocation as calculates from previous ones. + VMA_VALIDATE(!m_Suballocations.empty()); + + // Expected offset of new suballocation as calculated from previous ones. VkDeviceSize calculatedOffset = 0; // Expected number of free suballocations as calculated from traversing their list. uint32_t calculatedFreeCount = 0; @@ -5314,32 +7534,19 @@ bool VmaBlockMetadata::Validate() const // Expected number of free suballocations that should be registered in // m_FreeSuballocationsBySize calculated from traversing their list. size_t freeSuballocationsToRegister = 0; - // True if previous visisted suballocation was free. + // True if previous visited suballocation was free. bool prevFree = false; - for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin(); - suballocItem != m_Suballocations.cend(); - ++suballocItem) + for(const auto& subAlloc : m_Suballocations) { - const VmaSuballocation& subAlloc = *suballocItem; - // Actual offset of this suballocation doesn't match expected one. - if(subAlloc.offset != calculatedOffset) - { - return false; - } + VMA_VALIDATE(subAlloc.offset == calculatedOffset); const bool currFree = (subAlloc.type == VMA_SUBALLOCATION_TYPE_FREE); // Two adjacent free suballocations are invalid. They should be merged. - if(prevFree && currFree) - { - return false; - } + VMA_VALIDATE(!prevFree || !currFree); - if(currFree != (subAlloc.hAllocation == VK_NULL_HANDLE)) - { - return false; - } + VMA_VALIDATE(currFree == (subAlloc.hAllocation == VK_NULL_HANDLE)); if(currFree) { @@ -5349,17 +7556,17 @@ bool VmaBlockMetadata::Validate() const { ++freeSuballocationsToRegister; } + + // Margin required between allocations - every free space must be at least that large. + VMA_VALIDATE(subAlloc.size >= VMA_DEBUG_MARGIN); } else { - if(subAlloc.hAllocation->GetOffset() != subAlloc.offset) - { - return false; - } - if(subAlloc.hAllocation->GetSize() != subAlloc.size) - { - return false; - } + VMA_VALIDATE(subAlloc.hAllocation->GetOffset() == subAlloc.offset); + VMA_VALIDATE(subAlloc.hAllocation->GetSize() == subAlloc.size); + + // Margin required between allocations - previous allocation must be free. + VMA_VALIDATE(VMA_DEBUG_MARGIN == 0 || prevFree); } calculatedOffset += subAlloc.size; @@ -5368,43 +7575,31 @@ bool VmaBlockMetadata::Validate() const // Number of free suballocations registered in m_FreeSuballocationsBySize doesn't // match expected one. - if(m_FreeSuballocationsBySize.size() != freeSuballocationsToRegister) - { - return false; - } + VMA_VALIDATE(m_FreeSuballocationsBySize.size() == freeSuballocationsToRegister); VkDeviceSize lastSize = 0; for(size_t i = 0; i < m_FreeSuballocationsBySize.size(); ++i) { VmaSuballocationList::iterator suballocItem = m_FreeSuballocationsBySize[i]; - + // Only free suballocations can be registered in m_FreeSuballocationsBySize. - if(suballocItem->type != VMA_SUBALLOCATION_TYPE_FREE) - { - return false; - } + VMA_VALIDATE(suballocItem->type == VMA_SUBALLOCATION_TYPE_FREE); // They must be sorted by size ascending. - if(suballocItem->size < lastSize) - { - return false; - } + VMA_VALIDATE(suballocItem->size >= lastSize); lastSize = suballocItem->size; } - // Check if totals match calculacted values. - if(!ValidateFreeSuballocationList() || - (calculatedOffset != m_Size) || - (calculatedSumFreeSize != m_SumFreeSize) || - (calculatedFreeCount != m_FreeCount)) - { - return false; - } + // Check if totals match calculated values. + VMA_VALIDATE(ValidateFreeSuballocationList()); + VMA_VALIDATE(calculatedOffset == GetSize()); + VMA_VALIDATE(calculatedSumFreeSize == m_SumFreeSize); + VMA_VALIDATE(calculatedFreeCount == m_FreeCount); return true; } -VkDeviceSize VmaBlockMetadata::GetUnusedRangeSizeMax() const +VkDeviceSize VmaBlockMetadata_Generic::GetUnusedRangeSizeMax() const { if(!m_FreeSuballocationsBySize.empty()) { @@ -5416,32 +7611,29 @@ VkDeviceSize VmaBlockMetadata::GetUnusedRangeSizeMax() const } } -bool VmaBlockMetadata::IsEmpty() const +bool VmaBlockMetadata_Generic::IsEmpty() const { return (m_Suballocations.size() == 1) && (m_FreeCount == 1); } -void VmaBlockMetadata::CalcAllocationStatInfo(VmaStatInfo& outInfo) const +void VmaBlockMetadata_Generic::CalcAllocationStatInfo(VmaStatInfo& outInfo) const { outInfo.blockCount = 1; const uint32_t rangeCount = (uint32_t)m_Suballocations.size(); outInfo.allocationCount = rangeCount - m_FreeCount; outInfo.unusedRangeCount = m_FreeCount; - + outInfo.unusedBytes = m_SumFreeSize; - outInfo.usedBytes = m_Size - outInfo.unusedBytes; + outInfo.usedBytes = GetSize() - outInfo.unusedBytes; outInfo.allocationSizeMin = UINT64_MAX; outInfo.allocationSizeMax = 0; outInfo.unusedRangeSizeMin = UINT64_MAX; outInfo.unusedRangeSizeMax = 0; - for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin(); - suballocItem != m_Suballocations.cend(); - ++suballocItem) + for(const auto& suballoc : m_Suballocations) { - const VmaSuballocation& suballoc = *suballocItem; if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE) { outInfo.allocationSizeMin = VMA_MIN(outInfo.allocationSizeMin, suballoc.size); @@ -5455,11 +7647,11 @@ void VmaBlockMetadata::CalcAllocationStatInfo(VmaStatInfo& outInfo) const } } -void VmaBlockMetadata::AddPoolStats(VmaPoolStats& inoutStats) const +void VmaBlockMetadata_Generic::AddPoolStats(VmaPoolStats& inoutStats) const { const uint32_t rangeCount = (uint32_t)m_Suballocations.size(); - inoutStats.size += m_Size; + inoutStats.size += GetSize(); inoutStats.unusedSize += m_SumFreeSize; inoutStats.allocationCount += rangeCount - m_FreeCount; inoutStats.unusedRangeCount += m_FreeCount; @@ -5468,105 +7660,53 @@ void VmaBlockMetadata::AddPoolStats(VmaPoolStats& inoutStats) const #if VMA_STATS_STRING_ENABLED -void VmaBlockMetadata::PrintDetailedMap(class VmaJsonWriter& json) const +void VmaBlockMetadata_Generic::PrintDetailedMap(class VmaJsonWriter& json) const { - json.BeginObject(); + PrintDetailedMap_Begin(json, + m_SumFreeSize, // unusedBytes + m_Suballocations.size() - (size_t)m_FreeCount, // allocationCount + m_FreeCount); // unusedRangeCount - json.WriteString("TotalBytes"); - json.WriteNumber(m_Size); - - json.WriteString("UnusedBytes"); - json.WriteNumber(m_SumFreeSize); - - json.WriteString("Allocations"); - json.WriteNumber((uint64_t)m_Suballocations.size() - m_FreeCount); - - json.WriteString("UnusedRanges"); - json.WriteNumber(m_FreeCount); - - json.WriteString("Suballocations"); - json.BeginArray(); - size_t i = 0; - for(VmaSuballocationList::const_iterator suballocItem = m_Suballocations.cbegin(); - suballocItem != m_Suballocations.cend(); - ++suballocItem, ++i) + for(const auto& suballoc : m_Suballocations) { - json.BeginObject(true); - - json.WriteString("Type"); - json.WriteString(VMA_SUBALLOCATION_TYPE_NAMES[suballocItem->type]); - - json.WriteString("Size"); - json.WriteNumber(suballocItem->size); - - json.WriteString("Offset"); - json.WriteNumber(suballocItem->offset); - - if(suballocItem->type != VMA_SUBALLOCATION_TYPE_FREE) + if(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE) { - const void* pUserData = suballocItem->hAllocation->GetUserData(); - if(pUserData != VMA_NULL) - { - json.WriteString("UserData"); - if(suballocItem->hAllocation->IsUserDataString()) - { - json.WriteString((const char*)pUserData); - } - else - { - json.BeginString(); - json.ContinueString_Pointer(pUserData); - json.EndString(); - } - } + PrintDetailedMap_UnusedRange(json, suballoc.offset, suballoc.size); + } + else + { + PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.hAllocation); } - - json.EndObject(); } - json.EndArray(); - json.EndObject(); + PrintDetailedMap_End(json); } #endif // #if VMA_STATS_STRING_ENABLED -/* -How many suitable free suballocations to analyze before choosing best one. -- Set to 1 to use First-Fit algorithm - first suitable free suballocation will - be chosen. -- Set to UINT32_MAX to use Best-Fit/Worst-Fit algorithm - all suitable free - suballocations will be analized and best one will be chosen. -- Any other value is also acceptable. -*/ -//static const uint32_t MAX_SUITABLE_SUBALLOCATIONS_TO_CHECK = 8; - -void VmaBlockMetadata::CreateFirstAllocationRequest(VmaAllocationRequest* pAllocationRequest) -{ - VMA_ASSERT(IsEmpty()); - pAllocationRequest->offset = 0; - pAllocationRequest->sumFreeSize = m_SumFreeSize; - pAllocationRequest->sumItemSize = 0; - pAllocationRequest->item = m_Suballocations.begin(); - pAllocationRequest->itemsToMakeLostCount = 0; -} - -bool VmaBlockMetadata::CreateAllocationRequest( +bool VmaBlockMetadata_Generic::CreateAllocationRequest( uint32_t currentFrameIndex, uint32_t frameInUseCount, VkDeviceSize bufferImageGranularity, VkDeviceSize allocSize, VkDeviceSize allocAlignment, + bool upperAddress, VmaSuballocationType allocType, bool canMakeOtherLost, + uint32_t strategy, VmaAllocationRequest* pAllocationRequest) { VMA_ASSERT(allocSize > 0); + VMA_ASSERT(!upperAddress); VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE); VMA_ASSERT(pAllocationRequest != VMA_NULL); VMA_HEAVY_ASSERT(Validate()); + pAllocationRequest->type = VmaAllocationRequestType::Normal; + // There is not enough total free space in this block to fullfill the request: Early return. - if(canMakeOtherLost == false && m_SumFreeSize < allocSize) + if(canMakeOtherLost == false && + m_SumFreeSize < allocSize + 2 * VMA_DEBUG_MARGIN) { return false; } @@ -5575,13 +7715,13 @@ bool VmaBlockMetadata::CreateAllocationRequest( const size_t freeSuballocCount = m_FreeSuballocationsBySize.size(); if(freeSuballocCount > 0) { - if(VMA_BEST_FIT) + if(strategy == VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT) { - // Find first free suballocation with size not less than allocSize. + // Find first free suballocation with size not less than allocSize + 2 * VMA_DEBUG_MARGIN. VmaSuballocationList::iterator* const it = VmaBinaryFindFirstNotLess( m_FreeSuballocationsBySize.data(), m_FreeSuballocationsBySize.data() + freeSuballocCount, - allocSize, + allocSize + 2 * VMA_DEBUG_MARGIN, VmaSuballocationItemSizeLess()); size_t index = it - m_FreeSuballocationsBySize.data(); for(; index < freeSuballocCount; ++index) @@ -5605,7 +7745,32 @@ bool VmaBlockMetadata::CreateAllocationRequest( } } } - else + else if(strategy == VMA_ALLOCATION_INTERNAL_STRATEGY_MIN_OFFSET) + { + for(VmaSuballocationList::iterator it = m_Suballocations.begin(); + it != m_Suballocations.end(); + ++it) + { + if(it->type == VMA_SUBALLOCATION_TYPE_FREE && CheckAllocation( + currentFrameIndex, + frameInUseCount, + bufferImageGranularity, + allocSize, + allocAlignment, + allocType, + it, + false, // canMakeOtherLost + &pAllocationRequest->offset, + &pAllocationRequest->itemsToMakeLostCount, + &pAllocationRequest->sumFreeSize, + &pAllocationRequest->sumItemSize)) + { + pAllocationRequest->item = it; + return true; + } + } + } + else // WORST_FIT, FIRST_FIT { // Search staring from biggest suballocations. for(size_t index = freeSuballocCount; index--; ) @@ -5635,10 +7800,9 @@ bool VmaBlockMetadata::CreateAllocationRequest( { // Brute-force algorithm. TODO: Come up with something better. - pAllocationRequest->sumFreeSize = VK_WHOLE_SIZE; - pAllocationRequest->sumItemSize = VK_WHOLE_SIZE; - + bool found = false; VmaAllocationRequest tmpAllocRequest = {}; + tmpAllocRequest.type = VmaAllocationRequestType::Normal; for(VmaSuballocationList::iterator suballocIt = m_Suballocations.begin(); suballocIt != m_Suballocations.end(); ++suballocIt) @@ -5660,30 +7824,35 @@ bool VmaBlockMetadata::CreateAllocationRequest( &tmpAllocRequest.sumFreeSize, &tmpAllocRequest.sumItemSize)) { - tmpAllocRequest.item = suballocIt; - - if(tmpAllocRequest.CalcCost() < pAllocationRequest->CalcCost()) + if(strategy == VMA_ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT) { *pAllocationRequest = tmpAllocRequest; + pAllocationRequest->item = suballocIt; + break; + } + if(!found || tmpAllocRequest.CalcCost() < pAllocationRequest->CalcCost()) + { + *pAllocationRequest = tmpAllocRequest; + pAllocationRequest->item = suballocIt; + found = true; } } } } - if(pAllocationRequest->sumItemSize != VK_WHOLE_SIZE) - { - return true; - } + return found; } return false; } -bool VmaBlockMetadata::MakeRequestedAllocationsLost( +bool VmaBlockMetadata_Generic::MakeRequestedAllocationsLost( uint32_t currentFrameIndex, uint32_t frameInUseCount, VmaAllocationRequest* pAllocationRequest) { + VMA_ASSERT(pAllocationRequest && pAllocationRequest->type == VmaAllocationRequestType::Normal); + while(pAllocationRequest->itemsToMakeLostCount > 0) { if(pAllocationRequest->item->type == VMA_SUBALLOCATION_TYPE_FREE) @@ -5707,11 +7876,11 @@ bool VmaBlockMetadata::MakeRequestedAllocationsLost( VMA_HEAVY_ASSERT(Validate()); VMA_ASSERT(pAllocationRequest->item != m_Suballocations.end()); VMA_ASSERT(pAllocationRequest->item->type == VMA_SUBALLOCATION_TYPE_FREE); - + return true; } -uint32_t VmaBlockMetadata::MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount) +uint32_t VmaBlockMetadata_Generic::MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount) { uint32_t lostAllocationCount = 0; for(VmaSuballocationList::iterator it = m_Suballocations.begin(); @@ -5729,12 +7898,35 @@ uint32_t VmaBlockMetadata::MakeAllocationsLost(uint32_t currentFrameIndex, uint3 return lostAllocationCount; } -void VmaBlockMetadata::Alloc( +VkResult VmaBlockMetadata_Generic::CheckCorruption(const void* pBlockData) +{ + for(auto& suballoc : m_Suballocations) + { + if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE) + { + if(!VmaValidateMagicValue(pBlockData, suballoc.offset - VMA_DEBUG_MARGIN)) + { + VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED BEFORE VALIDATED ALLOCATION!"); + return VK_ERROR_UNKNOWN; + } + if(!VmaValidateMagicValue(pBlockData, suballoc.offset + suballoc.size)) + { + VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!"); + return VK_ERROR_UNKNOWN; + } + } + } + + return VK_SUCCESS; +} + +void VmaBlockMetadata_Generic::Alloc( const VmaAllocationRequest& request, VmaSuballocationType type, VkDeviceSize allocSize, VmaAllocation hAllocation) { + VMA_ASSERT(request.type == VmaAllocationRequestType::Normal); VMA_ASSERT(request.item != m_Suballocations.end()); VmaSuballocation& suballoc = *request.item; // Given suballocation is a free block. @@ -5793,7 +7985,7 @@ void VmaBlockMetadata::Alloc( m_SumFreeSize -= allocSize; } -void VmaBlockMetadata::Free(const VmaAllocation allocation) +void VmaBlockMetadata_Generic::Free(const VmaAllocation allocation) { for(VmaSuballocationList::iterator suballocItem = m_Suballocations.begin(); suballocItem != m_Suballocations.end(); @@ -5810,7 +8002,7 @@ void VmaBlockMetadata::Free(const VmaAllocation allocation) VMA_ASSERT(0 && "Not found!"); } -void VmaBlockMetadata::FreeAtOffset(VkDeviceSize offset) +void VmaBlockMetadata_Generic::FreeAtOffset(VkDeviceSize offset) { for(VmaSuballocationList::iterator suballocItem = m_Suballocations.begin(); suballocItem != m_Suballocations.end(); @@ -5826,35 +8018,22 @@ void VmaBlockMetadata::FreeAtOffset(VkDeviceSize offset) VMA_ASSERT(0 && "Not found!"); } -bool VmaBlockMetadata::ValidateFreeSuballocationList() const +bool VmaBlockMetadata_Generic::ValidateFreeSuballocationList() const { VkDeviceSize lastSize = 0; for(size_t i = 0, count = m_FreeSuballocationsBySize.size(); i < count; ++i) { const VmaSuballocationList::iterator it = m_FreeSuballocationsBySize[i]; - if(it->type != VMA_SUBALLOCATION_TYPE_FREE) - { - VMA_ASSERT(0); - return false; - } - if(it->size < VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER) - { - VMA_ASSERT(0); - return false; - } - if(it->size < lastSize) - { - VMA_ASSERT(0); - return false; - } - + VMA_VALIDATE(it->type == VMA_SUBALLOCATION_TYPE_FREE); + VMA_VALIDATE(it->size >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER); + VMA_VALIDATE(it->size >= lastSize); lastSize = it->size; } return true; } -bool VmaBlockMetadata::CheckAllocation( +bool VmaBlockMetadata_Generic::CheckAllocation( uint32_t currentFrameIndex, uint32_t frameInUseCount, VkDeviceSize bufferImageGranularity, @@ -5872,7 +8051,7 @@ bool VmaBlockMetadata::CheckAllocation( VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE); VMA_ASSERT(suballocItem != m_Suballocations.cend()); VMA_ASSERT(pOffset != VMA_NULL); - + *itemsToMakeLostCount = 0; *pSumFreeSize = 0; *pSumItemSize = 0; @@ -5898,27 +8077,26 @@ bool VmaBlockMetadata::CheckAllocation( } // Remaining size is too small for this request: Early return. - if(m_Size - suballocItem->offset < allocSize) + if(GetSize() - suballocItem->offset < allocSize) { return false; } // Start from offset equal to beginning of this suballocation. *pOffset = suballocItem->offset; - + // Apply VMA_DEBUG_MARGIN at the beginning. - if((VMA_DEBUG_MARGIN > 0) && suballocItem != m_Suballocations.cbegin()) + if(VMA_DEBUG_MARGIN > 0) { *pOffset += VMA_DEBUG_MARGIN; } - + // Apply alignment. - const VkDeviceSize alignment = VMA_MAX(allocAlignment, static_cast(VMA_DEBUG_ALIGNMENT)); - *pOffset = VmaAlignUp(*pOffset, alignment); + *pOffset = VmaAlignUp(*pOffset, allocAlignment); // Check previous suballocations for BufferImageGranularity conflicts. // Make bigger alignment if necessary. - if(bufferImageGranularity > 1) + if(bufferImageGranularity > 1 && bufferImageGranularity != allocAlignment) { bool bufferImageGranularityConflict = false; VmaSuballocationList::const_iterator prevSuballocItem = suballocItem; @@ -5943,26 +8121,23 @@ bool VmaBlockMetadata::CheckAllocation( *pOffset = VmaAlignUp(*pOffset, bufferImageGranularity); } } - + // Now that we have final *pOffset, check if we are past suballocItem. // If yes, return false - this function should be called for another suballocItem as starting point. if(*pOffset >= suballocItem->offset + suballocItem->size) { return false; } - + // Calculate padding at the beginning based on current offset. const VkDeviceSize paddingBegin = *pOffset - suballocItem->offset; - // Calculate required margin at the end if this is not last suballocation. - VmaSuballocationList::const_iterator next = suballocItem; - ++next; - const VkDeviceSize requiredEndMargin = - (next != m_Suballocations.cend()) ? VMA_DEBUG_MARGIN : 0; + // Calculate required margin at the end. + const VkDeviceSize requiredEndMargin = VMA_DEBUG_MARGIN; const VkDeviceSize totalSize = paddingBegin + allocSize + requiredEndMargin; // Another early return check. - if(suballocItem->offset + totalSize > m_Size) + if(suballocItem->offset + totalSize > GetSize()) { return false; } @@ -6005,7 +8180,7 @@ bool VmaBlockMetadata::CheckAllocation( // Check next suballocations for BufferImageGranularity conflicts. // If conflict exists, we must mark more allocations lost or fail. - if(bufferImageGranularity > 1) + if(allocSize % bufferImageGranularity || *pOffset % bufferImageGranularity) { VmaSuballocationList::const_iterator nextSuballocItem = lastSuballocItem; ++nextSuballocItem; @@ -6052,20 +8227,19 @@ bool VmaBlockMetadata::CheckAllocation( // Start from offset equal to beginning of this suballocation. *pOffset = suballoc.offset; - + // Apply VMA_DEBUG_MARGIN at the beginning. - if((VMA_DEBUG_MARGIN > 0) && suballocItem != m_Suballocations.cbegin()) + if(VMA_DEBUG_MARGIN > 0) { *pOffset += VMA_DEBUG_MARGIN; } - + // Apply alignment. - const VkDeviceSize alignment = VMA_MAX(allocAlignment, static_cast(VMA_DEBUG_ALIGNMENT)); - *pOffset = VmaAlignUp(*pOffset, alignment); - + *pOffset = VmaAlignUp(*pOffset, allocAlignment); + // Check previous suballocations for BufferImageGranularity conflicts. // Make bigger alignment if necessary. - if(bufferImageGranularity > 1) + if(bufferImageGranularity > 1 && bufferImageGranularity != allocAlignment) { bool bufferImageGranularityConflict = false; VmaSuballocationList::const_iterator prevSuballocItem = suballocItem; @@ -6090,15 +8264,12 @@ bool VmaBlockMetadata::CheckAllocation( *pOffset = VmaAlignUp(*pOffset, bufferImageGranularity); } } - + // Calculate padding at the beginning based on current offset. const VkDeviceSize paddingBegin = *pOffset - suballoc.offset; - // Calculate required margin at the end if this is not last suballocation. - VmaSuballocationList::const_iterator next = suballocItem; - ++next; - const VkDeviceSize requiredEndMargin = - (next != m_Suballocations.cend()) ? VMA_DEBUG_MARGIN : 0; + // Calculate required margin at the end. + const VkDeviceSize requiredEndMargin = VMA_DEBUG_MARGIN; // Fail if requested size plus margin before and after is bigger than size of this suballocation. if(paddingBegin + allocSize + requiredEndMargin > suballoc.size) @@ -6108,7 +8279,7 @@ bool VmaBlockMetadata::CheckAllocation( // Check next suballocations for BufferImageGranularity conflicts. // If conflict exists, allocation cannot be made here. - if(bufferImageGranularity > 1) + if(allocSize % bufferImageGranularity || *pOffset % bufferImageGranularity) { VmaSuballocationList::const_iterator nextSuballocItem = suballocItem; ++nextSuballocItem; @@ -6136,11 +8307,11 @@ bool VmaBlockMetadata::CheckAllocation( return true; } -void VmaBlockMetadata::MergeFreeWithNext(VmaSuballocationList::iterator item) +void VmaBlockMetadata_Generic::MergeFreeWithNext(VmaSuballocationList::iterator item) { VMA_ASSERT(item != m_Suballocations.end()); VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE); - + VmaSuballocationList::iterator nextItem = item; ++nextItem; VMA_ASSERT(nextItem != m_Suballocations.end()); @@ -6151,13 +8322,13 @@ void VmaBlockMetadata::MergeFreeWithNext(VmaSuballocationList::iterator item) m_Suballocations.erase(nextItem); } -VmaSuballocationList::iterator VmaBlockMetadata::FreeSuballocation(VmaSuballocationList::iterator suballocItem) +VmaSuballocationList::iterator VmaBlockMetadata_Generic::FreeSuballocation(VmaSuballocationList::iterator suballocItem) { // Change this suballocation to be marked as free. VmaSuballocation& suballoc = *suballocItem; suballoc.type = VMA_SUBALLOCATION_TYPE_FREE; suballoc.hAllocation = VK_NULL_HANDLE; - + // Update totals. ++m_FreeCount; m_SumFreeSize += suballoc.size; @@ -6165,7 +8336,7 @@ VmaSuballocationList::iterator VmaBlockMetadata::FreeSuballocation(VmaSuballocat // Merge with previous and/or next suballocation if it's also free. bool mergeWithNext = false; bool mergeWithPrev = false; - + VmaSuballocationList::iterator nextItem = suballocItem; ++nextItem; if((nextItem != m_Suballocations.end()) && (nextItem->type == VMA_SUBALLOCATION_TYPE_FREE)) @@ -6203,7 +8374,7 @@ VmaSuballocationList::iterator VmaBlockMetadata::FreeSuballocation(VmaSuballocat } } -void VmaBlockMetadata::RegisterFreeSuballocation(VmaSuballocationList::iterator item) +void VmaBlockMetadata_Generic::RegisterFreeSuballocation(VmaSuballocationList::iterator item) { VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE); VMA_ASSERT(item->size > 0); @@ -6228,7 +8399,7 @@ void VmaBlockMetadata::RegisterFreeSuballocation(VmaSuballocationList::iterator } -void VmaBlockMetadata::UnregisterFreeSuballocation(VmaSuballocationList::iterator item) +void VmaBlockMetadata_Generic::UnregisterFreeSuballocation(VmaSuballocationList::iterator item) { VMA_ASSERT(item->type == VMA_SUBALLOCATION_TYPE_FREE); VMA_ASSERT(item->size > 0); @@ -6261,12 +8432,2355 @@ void VmaBlockMetadata::UnregisterFreeSuballocation(VmaSuballocationList::iterato //VMA_HEAVY_ASSERT(ValidateFreeSuballocationList()); } +bool VmaBlockMetadata_Generic::IsBufferImageGranularityConflictPossible( + VkDeviceSize bufferImageGranularity, + VmaSuballocationType& inOutPrevSuballocType) const +{ + if(bufferImageGranularity == 1 || IsEmpty()) + { + return false; + } + + VkDeviceSize minAlignment = VK_WHOLE_SIZE; + bool typeConflictFound = false; + for(const auto& suballoc : m_Suballocations) + { + const VmaSuballocationType suballocType = suballoc.type; + if(suballocType != VMA_SUBALLOCATION_TYPE_FREE) + { + minAlignment = VMA_MIN(minAlignment, suballoc.hAllocation->GetAlignment()); + if(VmaIsBufferImageGranularityConflict(inOutPrevSuballocType, suballocType)) + { + typeConflictFound = true; + } + inOutPrevSuballocType = suballocType; + } + } + + return typeConflictFound || minAlignment >= bufferImageGranularity; +} + +//////////////////////////////////////////////////////////////////////////////// +// class VmaBlockMetadata_Linear + +VmaBlockMetadata_Linear::VmaBlockMetadata_Linear(VmaAllocator hAllocator) : + VmaBlockMetadata(hAllocator), + m_SumFreeSize(0), + m_Suballocations0(VmaStlAllocator(hAllocator->GetAllocationCallbacks())), + m_Suballocations1(VmaStlAllocator(hAllocator->GetAllocationCallbacks())), + m_1stVectorIndex(0), + m_2ndVectorMode(SECOND_VECTOR_EMPTY), + m_1stNullItemsBeginCount(0), + m_1stNullItemsMiddleCount(0), + m_2ndNullItemsCount(0) +{ +} + +VmaBlockMetadata_Linear::~VmaBlockMetadata_Linear() +{ +} + +void VmaBlockMetadata_Linear::Init(VkDeviceSize size) +{ + VmaBlockMetadata::Init(size); + m_SumFreeSize = size; +} + +bool VmaBlockMetadata_Linear::Validate() const +{ + const SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + + VMA_VALIDATE(suballocations2nd.empty() == (m_2ndVectorMode == SECOND_VECTOR_EMPTY)); + VMA_VALIDATE(!suballocations1st.empty() || + suballocations2nd.empty() || + m_2ndVectorMode != SECOND_VECTOR_RING_BUFFER); + + if(!suballocations1st.empty()) + { + // Null item at the beginning should be accounted into m_1stNullItemsBeginCount. + VMA_VALIDATE(suballocations1st[m_1stNullItemsBeginCount].hAllocation != VK_NULL_HANDLE); + // Null item at the end should be just pop_back(). + VMA_VALIDATE(suballocations1st.back().hAllocation != VK_NULL_HANDLE); + } + if(!suballocations2nd.empty()) + { + // Null item at the end should be just pop_back(). + VMA_VALIDATE(suballocations2nd.back().hAllocation != VK_NULL_HANDLE); + } + + VMA_VALIDATE(m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount <= suballocations1st.size()); + VMA_VALIDATE(m_2ndNullItemsCount <= suballocations2nd.size()); + + VkDeviceSize sumUsedSize = 0; + const size_t suballoc1stCount = suballocations1st.size(); + VkDeviceSize offset = VMA_DEBUG_MARGIN; + + if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER) + { + const size_t suballoc2ndCount = suballocations2nd.size(); + size_t nullItem2ndCount = 0; + for(size_t i = 0; i < suballoc2ndCount; ++i) + { + const VmaSuballocation& suballoc = suballocations2nd[i]; + const bool currFree = (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE); + + VMA_VALIDATE(currFree == (suballoc.hAllocation == VK_NULL_HANDLE)); + VMA_VALIDATE(suballoc.offset >= offset); + + if(!currFree) + { + VMA_VALIDATE(suballoc.hAllocation->GetOffset() == suballoc.offset); + VMA_VALIDATE(suballoc.hAllocation->GetSize() == suballoc.size); + sumUsedSize += suballoc.size; + } + else + { + ++nullItem2ndCount; + } + + offset = suballoc.offset + suballoc.size + VMA_DEBUG_MARGIN; + } + + VMA_VALIDATE(nullItem2ndCount == m_2ndNullItemsCount); + } + + for(size_t i = 0; i < m_1stNullItemsBeginCount; ++i) + { + const VmaSuballocation& suballoc = suballocations1st[i]; + VMA_VALIDATE(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE && + suballoc.hAllocation == VK_NULL_HANDLE); + } + + size_t nullItem1stCount = m_1stNullItemsBeginCount; + + for(size_t i = m_1stNullItemsBeginCount; i < suballoc1stCount; ++i) + { + const VmaSuballocation& suballoc = suballocations1st[i]; + const bool currFree = (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE); + + VMA_VALIDATE(currFree == (suballoc.hAllocation == VK_NULL_HANDLE)); + VMA_VALIDATE(suballoc.offset >= offset); + VMA_VALIDATE(i >= m_1stNullItemsBeginCount || currFree); + + if(!currFree) + { + VMA_VALIDATE(suballoc.hAllocation->GetOffset() == suballoc.offset); + VMA_VALIDATE(suballoc.hAllocation->GetSize() == suballoc.size); + sumUsedSize += suballoc.size; + } + else + { + ++nullItem1stCount; + } + + offset = suballoc.offset + suballoc.size + VMA_DEBUG_MARGIN; + } + VMA_VALIDATE(nullItem1stCount == m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount); + + if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK) + { + const size_t suballoc2ndCount = suballocations2nd.size(); + size_t nullItem2ndCount = 0; + for(size_t i = suballoc2ndCount; i--; ) + { + const VmaSuballocation& suballoc = suballocations2nd[i]; + const bool currFree = (suballoc.type == VMA_SUBALLOCATION_TYPE_FREE); + + VMA_VALIDATE(currFree == (suballoc.hAllocation == VK_NULL_HANDLE)); + VMA_VALIDATE(suballoc.offset >= offset); + + if(!currFree) + { + VMA_VALIDATE(suballoc.hAllocation->GetOffset() == suballoc.offset); + VMA_VALIDATE(suballoc.hAllocation->GetSize() == suballoc.size); + sumUsedSize += suballoc.size; + } + else + { + ++nullItem2ndCount; + } + + offset = suballoc.offset + suballoc.size + VMA_DEBUG_MARGIN; + } + + VMA_VALIDATE(nullItem2ndCount == m_2ndNullItemsCount); + } + + VMA_VALIDATE(offset <= GetSize()); + VMA_VALIDATE(m_SumFreeSize == GetSize() - sumUsedSize); + + return true; +} + +size_t VmaBlockMetadata_Linear::GetAllocationCount() const +{ + return AccessSuballocations1st().size() - (m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount) + + AccessSuballocations2nd().size() - m_2ndNullItemsCount; +} + +VkDeviceSize VmaBlockMetadata_Linear::GetUnusedRangeSizeMax() const +{ + const VkDeviceSize size = GetSize(); + + /* + We don't consider gaps inside allocation vectors with freed allocations because + they are not suitable for reuse in linear allocator. We consider only space that + is available for new allocations. + */ + if(IsEmpty()) + { + return size; + } + + const SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + + switch(m_2ndVectorMode) + { + case SECOND_VECTOR_EMPTY: + /* + Available space is after end of 1st, as well as before beginning of 1st (which + would make it a ring buffer). + */ + { + const size_t suballocations1stCount = suballocations1st.size(); + VMA_ASSERT(suballocations1stCount > m_1stNullItemsBeginCount); + const VmaSuballocation& firstSuballoc = suballocations1st[m_1stNullItemsBeginCount]; + const VmaSuballocation& lastSuballoc = suballocations1st[suballocations1stCount - 1]; + return VMA_MAX( + firstSuballoc.offset, + size - (lastSuballoc.offset + lastSuballoc.size)); + } + break; + + case SECOND_VECTOR_RING_BUFFER: + /* + Available space is only between end of 2nd and beginning of 1st. + */ + { + const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + const VmaSuballocation& lastSuballoc2nd = suballocations2nd.back(); + const VmaSuballocation& firstSuballoc1st = suballocations1st[m_1stNullItemsBeginCount]; + return firstSuballoc1st.offset - (lastSuballoc2nd.offset + lastSuballoc2nd.size); + } + break; + + case SECOND_VECTOR_DOUBLE_STACK: + /* + Available space is only between end of 1st and top of 2nd. + */ + { + const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + const VmaSuballocation& topSuballoc2nd = suballocations2nd.back(); + const VmaSuballocation& lastSuballoc1st = suballocations1st.back(); + return topSuballoc2nd.offset - (lastSuballoc1st.offset + lastSuballoc1st.size); + } + break; + + default: + VMA_ASSERT(0); + return 0; + } +} + +void VmaBlockMetadata_Linear::CalcAllocationStatInfo(VmaStatInfo& outInfo) const +{ + const VkDeviceSize size = GetSize(); + const SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + const size_t suballoc1stCount = suballocations1st.size(); + const size_t suballoc2ndCount = suballocations2nd.size(); + + outInfo.blockCount = 1; + outInfo.allocationCount = (uint32_t)GetAllocationCount(); + outInfo.unusedRangeCount = 0; + outInfo.usedBytes = 0; + outInfo.allocationSizeMin = UINT64_MAX; + outInfo.allocationSizeMax = 0; + outInfo.unusedRangeSizeMin = UINT64_MAX; + outInfo.unusedRangeSizeMax = 0; + + VkDeviceSize lastOffset = 0; + + if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER) + { + const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset; + size_t nextAlloc2ndIndex = 0; + while(lastOffset < freeSpace2ndTo1stEnd) + { + // Find next non-null allocation or move nextAllocIndex to the end. + while(nextAlloc2ndIndex < suballoc2ndCount && + suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE) + { + ++nextAlloc2ndIndex; + } + + // Found non-null allocation. + if(nextAlloc2ndIndex < suballoc2ndCount) + { + const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex]; + + // 1. Process free space before this allocation. + if(lastOffset < suballoc.offset) + { + // There is free space from lastOffset to suballoc.offset. + const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset; + ++outInfo.unusedRangeCount; + outInfo.unusedBytes += unusedRangeSize; + outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize); + outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize); + } + + // 2. Process this allocation. + // There is allocation with suballoc.offset, suballoc.size. + outInfo.usedBytes += suballoc.size; + outInfo.allocationSizeMin = VMA_MIN(outInfo.allocationSizeMin, suballoc.size); + outInfo.allocationSizeMax = VMA_MIN(outInfo.allocationSizeMax, suballoc.size); + + // 3. Prepare for next iteration. + lastOffset = suballoc.offset + suballoc.size; + ++nextAlloc2ndIndex; + } + // We are at the end. + else + { + // There is free space from lastOffset to freeSpace2ndTo1stEnd. + if(lastOffset < freeSpace2ndTo1stEnd) + { + const VkDeviceSize unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset; + ++outInfo.unusedRangeCount; + outInfo.unusedBytes += unusedRangeSize; + outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize); + outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize); + } + + // End of loop. + lastOffset = freeSpace2ndTo1stEnd; + } + } + } + + size_t nextAlloc1stIndex = m_1stNullItemsBeginCount; + const VkDeviceSize freeSpace1stTo2ndEnd = + m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size; + while(lastOffset < freeSpace1stTo2ndEnd) + { + // Find next non-null allocation or move nextAllocIndex to the end. + while(nextAlloc1stIndex < suballoc1stCount && + suballocations1st[nextAlloc1stIndex].hAllocation == VK_NULL_HANDLE) + { + ++nextAlloc1stIndex; + } + + // Found non-null allocation. + if(nextAlloc1stIndex < suballoc1stCount) + { + const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex]; + + // 1. Process free space before this allocation. + if(lastOffset < suballoc.offset) + { + // There is free space from lastOffset to suballoc.offset. + const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset; + ++outInfo.unusedRangeCount; + outInfo.unusedBytes += unusedRangeSize; + outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize); + outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize); + } + + // 2. Process this allocation. + // There is allocation with suballoc.offset, suballoc.size. + outInfo.usedBytes += suballoc.size; + outInfo.allocationSizeMin = VMA_MIN(outInfo.allocationSizeMin, suballoc.size); + outInfo.allocationSizeMax = VMA_MIN(outInfo.allocationSizeMax, suballoc.size); + + // 3. Prepare for next iteration. + lastOffset = suballoc.offset + suballoc.size; + ++nextAlloc1stIndex; + } + // We are at the end. + else + { + // There is free space from lastOffset to freeSpace1stTo2ndEnd. + if(lastOffset < freeSpace1stTo2ndEnd) + { + const VkDeviceSize unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset; + ++outInfo.unusedRangeCount; + outInfo.unusedBytes += unusedRangeSize; + outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize); + outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize); + } + + // End of loop. + lastOffset = freeSpace1stTo2ndEnd; + } + } + + if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK) + { + size_t nextAlloc2ndIndex = suballocations2nd.size() - 1; + while(lastOffset < size) + { + // Find next non-null allocation or move nextAllocIndex to the end. + while(nextAlloc2ndIndex != SIZE_MAX && + suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE) + { + --nextAlloc2ndIndex; + } + + // Found non-null allocation. + if(nextAlloc2ndIndex != SIZE_MAX) + { + const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex]; + + // 1. Process free space before this allocation. + if(lastOffset < suballoc.offset) + { + // There is free space from lastOffset to suballoc.offset. + const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset; + ++outInfo.unusedRangeCount; + outInfo.unusedBytes += unusedRangeSize; + outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize); + outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize); + } + + // 2. Process this allocation. + // There is allocation with suballoc.offset, suballoc.size. + outInfo.usedBytes += suballoc.size; + outInfo.allocationSizeMin = VMA_MIN(outInfo.allocationSizeMin, suballoc.size); + outInfo.allocationSizeMax = VMA_MIN(outInfo.allocationSizeMax, suballoc.size); + + // 3. Prepare for next iteration. + lastOffset = suballoc.offset + suballoc.size; + --nextAlloc2ndIndex; + } + // We are at the end. + else + { + // There is free space from lastOffset to size. + if(lastOffset < size) + { + const VkDeviceSize unusedRangeSize = size - lastOffset; + ++outInfo.unusedRangeCount; + outInfo.unusedBytes += unusedRangeSize; + outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusedRangeSize); + outInfo.unusedRangeSizeMax = VMA_MIN(outInfo.unusedRangeSizeMax, unusedRangeSize); + } + + // End of loop. + lastOffset = size; + } + } + } + + outInfo.unusedBytes = size - outInfo.usedBytes; +} + +void VmaBlockMetadata_Linear::AddPoolStats(VmaPoolStats& inoutStats) const +{ + const SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + const VkDeviceSize size = GetSize(); + const size_t suballoc1stCount = suballocations1st.size(); + const size_t suballoc2ndCount = suballocations2nd.size(); + + inoutStats.size += size; + + VkDeviceSize lastOffset = 0; + + if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER) + { + const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset; + size_t nextAlloc2ndIndex = m_1stNullItemsBeginCount; + while(lastOffset < freeSpace2ndTo1stEnd) + { + // Find next non-null allocation or move nextAlloc2ndIndex to the end. + while(nextAlloc2ndIndex < suballoc2ndCount && + suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE) + { + ++nextAlloc2ndIndex; + } + + // Found non-null allocation. + if(nextAlloc2ndIndex < suballoc2ndCount) + { + const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex]; + + // 1. Process free space before this allocation. + if(lastOffset < suballoc.offset) + { + // There is free space from lastOffset to suballoc.offset. + const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset; + inoutStats.unusedSize += unusedRangeSize; + ++inoutStats.unusedRangeCount; + inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize); + } + + // 2. Process this allocation. + // There is allocation with suballoc.offset, suballoc.size. + ++inoutStats.allocationCount; + + // 3. Prepare for next iteration. + lastOffset = suballoc.offset + suballoc.size; + ++nextAlloc2ndIndex; + } + // We are at the end. + else + { + if(lastOffset < freeSpace2ndTo1stEnd) + { + // There is free space from lastOffset to freeSpace2ndTo1stEnd. + const VkDeviceSize unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset; + inoutStats.unusedSize += unusedRangeSize; + ++inoutStats.unusedRangeCount; + inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize); + } + + // End of loop. + lastOffset = freeSpace2ndTo1stEnd; + } + } + } + + size_t nextAlloc1stIndex = m_1stNullItemsBeginCount; + const VkDeviceSize freeSpace1stTo2ndEnd = + m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size; + while(lastOffset < freeSpace1stTo2ndEnd) + { + // Find next non-null allocation or move nextAllocIndex to the end. + while(nextAlloc1stIndex < suballoc1stCount && + suballocations1st[nextAlloc1stIndex].hAllocation == VK_NULL_HANDLE) + { + ++nextAlloc1stIndex; + } + + // Found non-null allocation. + if(nextAlloc1stIndex < suballoc1stCount) + { + const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex]; + + // 1. Process free space before this allocation. + if(lastOffset < suballoc.offset) + { + // There is free space from lastOffset to suballoc.offset. + const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset; + inoutStats.unusedSize += unusedRangeSize; + ++inoutStats.unusedRangeCount; + inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize); + } + + // 2. Process this allocation. + // There is allocation with suballoc.offset, suballoc.size. + ++inoutStats.allocationCount; + + // 3. Prepare for next iteration. + lastOffset = suballoc.offset + suballoc.size; + ++nextAlloc1stIndex; + } + // We are at the end. + else + { + if(lastOffset < freeSpace1stTo2ndEnd) + { + // There is free space from lastOffset to freeSpace1stTo2ndEnd. + const VkDeviceSize unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset; + inoutStats.unusedSize += unusedRangeSize; + ++inoutStats.unusedRangeCount; + inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize); + } + + // End of loop. + lastOffset = freeSpace1stTo2ndEnd; + } + } + + if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK) + { + size_t nextAlloc2ndIndex = suballocations2nd.size() - 1; + while(lastOffset < size) + { + // Find next non-null allocation or move nextAlloc2ndIndex to the end. + while(nextAlloc2ndIndex != SIZE_MAX && + suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE) + { + --nextAlloc2ndIndex; + } + + // Found non-null allocation. + if(nextAlloc2ndIndex != SIZE_MAX) + { + const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex]; + + // 1. Process free space before this allocation. + if(lastOffset < suballoc.offset) + { + // There is free space from lastOffset to suballoc.offset. + const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset; + inoutStats.unusedSize += unusedRangeSize; + ++inoutStats.unusedRangeCount; + inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize); + } + + // 2. Process this allocation. + // There is allocation with suballoc.offset, suballoc.size. + ++inoutStats.allocationCount; + + // 3. Prepare for next iteration. + lastOffset = suballoc.offset + suballoc.size; + --nextAlloc2ndIndex; + } + // We are at the end. + else + { + if(lastOffset < size) + { + // There is free space from lastOffset to size. + const VkDeviceSize unusedRangeSize = size - lastOffset; + inoutStats.unusedSize += unusedRangeSize; + ++inoutStats.unusedRangeCount; + inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, unusedRangeSize); + } + + // End of loop. + lastOffset = size; + } + } + } +} + +#if VMA_STATS_STRING_ENABLED +void VmaBlockMetadata_Linear::PrintDetailedMap(class VmaJsonWriter& json) const +{ + const VkDeviceSize size = GetSize(); + const SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + const SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + const size_t suballoc1stCount = suballocations1st.size(); + const size_t suballoc2ndCount = suballocations2nd.size(); + + // FIRST PASS + + size_t unusedRangeCount = 0; + VkDeviceSize usedBytes = 0; + + VkDeviceSize lastOffset = 0; + + size_t alloc2ndCount = 0; + if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER) + { + const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset; + size_t nextAlloc2ndIndex = 0; + while(lastOffset < freeSpace2ndTo1stEnd) + { + // Find next non-null allocation or move nextAlloc2ndIndex to the end. + while(nextAlloc2ndIndex < suballoc2ndCount && + suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE) + { + ++nextAlloc2ndIndex; + } + + // Found non-null allocation. + if(nextAlloc2ndIndex < suballoc2ndCount) + { + const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex]; + + // 1. Process free space before this allocation. + if(lastOffset < suballoc.offset) + { + // There is free space from lastOffset to suballoc.offset. + ++unusedRangeCount; + } + + // 2. Process this allocation. + // There is allocation with suballoc.offset, suballoc.size. + ++alloc2ndCount; + usedBytes += suballoc.size; + + // 3. Prepare for next iteration. + lastOffset = suballoc.offset + suballoc.size; + ++nextAlloc2ndIndex; + } + // We are at the end. + else + { + if(lastOffset < freeSpace2ndTo1stEnd) + { + // There is free space from lastOffset to freeSpace2ndTo1stEnd. + ++unusedRangeCount; + } + + // End of loop. + lastOffset = freeSpace2ndTo1stEnd; + } + } + } + + size_t nextAlloc1stIndex = m_1stNullItemsBeginCount; + size_t alloc1stCount = 0; + const VkDeviceSize freeSpace1stTo2ndEnd = + m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? suballocations2nd.back().offset : size; + while(lastOffset < freeSpace1stTo2ndEnd) + { + // Find next non-null allocation or move nextAllocIndex to the end. + while(nextAlloc1stIndex < suballoc1stCount && + suballocations1st[nextAlloc1stIndex].hAllocation == VK_NULL_HANDLE) + { + ++nextAlloc1stIndex; + } + + // Found non-null allocation. + if(nextAlloc1stIndex < suballoc1stCount) + { + const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex]; + + // 1. Process free space before this allocation. + if(lastOffset < suballoc.offset) + { + // There is free space from lastOffset to suballoc.offset. + ++unusedRangeCount; + } + + // 2. Process this allocation. + // There is allocation with suballoc.offset, suballoc.size. + ++alloc1stCount; + usedBytes += suballoc.size; + + // 3. Prepare for next iteration. + lastOffset = suballoc.offset + suballoc.size; + ++nextAlloc1stIndex; + } + // We are at the end. + else + { + if(lastOffset < size) + { + // There is free space from lastOffset to freeSpace1stTo2ndEnd. + ++unusedRangeCount; + } + + // End of loop. + lastOffset = freeSpace1stTo2ndEnd; + } + } + + if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK) + { + size_t nextAlloc2ndIndex = suballocations2nd.size() - 1; + while(lastOffset < size) + { + // Find next non-null allocation or move nextAlloc2ndIndex to the end. + while(nextAlloc2ndIndex != SIZE_MAX && + suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE) + { + --nextAlloc2ndIndex; + } + + // Found non-null allocation. + if(nextAlloc2ndIndex != SIZE_MAX) + { + const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex]; + + // 1. Process free space before this allocation. + if(lastOffset < suballoc.offset) + { + // There is free space from lastOffset to suballoc.offset. + ++unusedRangeCount; + } + + // 2. Process this allocation. + // There is allocation with suballoc.offset, suballoc.size. + ++alloc2ndCount; + usedBytes += suballoc.size; + + // 3. Prepare for next iteration. + lastOffset = suballoc.offset + suballoc.size; + --nextAlloc2ndIndex; + } + // We are at the end. + else + { + if(lastOffset < size) + { + // There is free space from lastOffset to size. + ++unusedRangeCount; + } + + // End of loop. + lastOffset = size; + } + } + } + + const VkDeviceSize unusedBytes = size - usedBytes; + PrintDetailedMap_Begin(json, unusedBytes, alloc1stCount + alloc2ndCount, unusedRangeCount); + + // SECOND PASS + lastOffset = 0; + + if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER) + { + const VkDeviceSize freeSpace2ndTo1stEnd = suballocations1st[m_1stNullItemsBeginCount].offset; + size_t nextAlloc2ndIndex = 0; + while(lastOffset < freeSpace2ndTo1stEnd) + { + // Find next non-null allocation or move nextAlloc2ndIndex to the end. + while(nextAlloc2ndIndex < suballoc2ndCount && + suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE) + { + ++nextAlloc2ndIndex; + } + + // Found non-null allocation. + if(nextAlloc2ndIndex < suballoc2ndCount) + { + const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex]; + + // 1. Process free space before this allocation. + if(lastOffset < suballoc.offset) + { + // There is free space from lastOffset to suballoc.offset. + const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset; + PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize); + } + + // 2. Process this allocation. + // There is allocation with suballoc.offset, suballoc.size. + PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.hAllocation); + + // 3. Prepare for next iteration. + lastOffset = suballoc.offset + suballoc.size; + ++nextAlloc2ndIndex; + } + // We are at the end. + else + { + if(lastOffset < freeSpace2ndTo1stEnd) + { + // There is free space from lastOffset to freeSpace2ndTo1stEnd. + const VkDeviceSize unusedRangeSize = freeSpace2ndTo1stEnd - lastOffset; + PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize); + } + + // End of loop. + lastOffset = freeSpace2ndTo1stEnd; + } + } + } + + nextAlloc1stIndex = m_1stNullItemsBeginCount; + while(lastOffset < freeSpace1stTo2ndEnd) + { + // Find next non-null allocation or move nextAllocIndex to the end. + while(nextAlloc1stIndex < suballoc1stCount && + suballocations1st[nextAlloc1stIndex].hAllocation == VK_NULL_HANDLE) + { + ++nextAlloc1stIndex; + } + + // Found non-null allocation. + if(nextAlloc1stIndex < suballoc1stCount) + { + const VmaSuballocation& suballoc = suballocations1st[nextAlloc1stIndex]; + + // 1. Process free space before this allocation. + if(lastOffset < suballoc.offset) + { + // There is free space from lastOffset to suballoc.offset. + const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset; + PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize); + } + + // 2. Process this allocation. + // There is allocation with suballoc.offset, suballoc.size. + PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.hAllocation); + + // 3. Prepare for next iteration. + lastOffset = suballoc.offset + suballoc.size; + ++nextAlloc1stIndex; + } + // We are at the end. + else + { + if(lastOffset < freeSpace1stTo2ndEnd) + { + // There is free space from lastOffset to freeSpace1stTo2ndEnd. + const VkDeviceSize unusedRangeSize = freeSpace1stTo2ndEnd - lastOffset; + PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize); + } + + // End of loop. + lastOffset = freeSpace1stTo2ndEnd; + } + } + + if(m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK) + { + size_t nextAlloc2ndIndex = suballocations2nd.size() - 1; + while(lastOffset < size) + { + // Find next non-null allocation or move nextAlloc2ndIndex to the end. + while(nextAlloc2ndIndex != SIZE_MAX && + suballocations2nd[nextAlloc2ndIndex].hAllocation == VK_NULL_HANDLE) + { + --nextAlloc2ndIndex; + } + + // Found non-null allocation. + if(nextAlloc2ndIndex != SIZE_MAX) + { + const VmaSuballocation& suballoc = suballocations2nd[nextAlloc2ndIndex]; + + // 1. Process free space before this allocation. + if(lastOffset < suballoc.offset) + { + // There is free space from lastOffset to suballoc.offset. + const VkDeviceSize unusedRangeSize = suballoc.offset - lastOffset; + PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize); + } + + // 2. Process this allocation. + // There is allocation with suballoc.offset, suballoc.size. + PrintDetailedMap_Allocation(json, suballoc.offset, suballoc.hAllocation); + + // 3. Prepare for next iteration. + lastOffset = suballoc.offset + suballoc.size; + --nextAlloc2ndIndex; + } + // We are at the end. + else + { + if(lastOffset < size) + { + // There is free space from lastOffset to size. + const VkDeviceSize unusedRangeSize = size - lastOffset; + PrintDetailedMap_UnusedRange(json, lastOffset, unusedRangeSize); + } + + // End of loop. + lastOffset = size; + } + } + } + + PrintDetailedMap_End(json); +} +#endif // #if VMA_STATS_STRING_ENABLED + +bool VmaBlockMetadata_Linear::CreateAllocationRequest( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VkDeviceSize bufferImageGranularity, + VkDeviceSize allocSize, + VkDeviceSize allocAlignment, + bool upperAddress, + VmaSuballocationType allocType, + bool canMakeOtherLost, + uint32_t strategy, + VmaAllocationRequest* pAllocationRequest) +{ + VMA_ASSERT(allocSize > 0); + VMA_ASSERT(allocType != VMA_SUBALLOCATION_TYPE_FREE); + VMA_ASSERT(pAllocationRequest != VMA_NULL); + VMA_HEAVY_ASSERT(Validate()); + return upperAddress ? + CreateAllocationRequest_UpperAddress( + currentFrameIndex, frameInUseCount, bufferImageGranularity, + allocSize, allocAlignment, allocType, canMakeOtherLost, strategy, pAllocationRequest) : + CreateAllocationRequest_LowerAddress( + currentFrameIndex, frameInUseCount, bufferImageGranularity, + allocSize, allocAlignment, allocType, canMakeOtherLost, strategy, pAllocationRequest); +} + +bool VmaBlockMetadata_Linear::CreateAllocationRequest_UpperAddress( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VkDeviceSize bufferImageGranularity, + VkDeviceSize allocSize, + VkDeviceSize allocAlignment, + VmaSuballocationType allocType, + bool canMakeOtherLost, + uint32_t strategy, + VmaAllocationRequest* pAllocationRequest) +{ + const VkDeviceSize size = GetSize(); + SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + + if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER) + { + VMA_ASSERT(0 && "Trying to use pool with linear algorithm as double stack, while it is already being used as ring buffer."); + return false; + } + + // Try to allocate before 2nd.back(), or end of block if 2nd.empty(). + if(allocSize > size) + { + return false; + } + VkDeviceSize resultBaseOffset = size - allocSize; + if(!suballocations2nd.empty()) + { + const VmaSuballocation& lastSuballoc = suballocations2nd.back(); + resultBaseOffset = lastSuballoc.offset - allocSize; + if(allocSize > lastSuballoc.offset) + { + return false; + } + } + + // Start from offset equal to end of free space. + VkDeviceSize resultOffset = resultBaseOffset; + + // Apply VMA_DEBUG_MARGIN at the end. + if(VMA_DEBUG_MARGIN > 0) + { + if(resultOffset < VMA_DEBUG_MARGIN) + { + return false; + } + resultOffset -= VMA_DEBUG_MARGIN; + } + + // Apply alignment. + resultOffset = VmaAlignDown(resultOffset, allocAlignment); + + // Check next suballocations from 2nd for BufferImageGranularity conflicts. + // Make bigger alignment if necessary. + if(bufferImageGranularity > 1 && bufferImageGranularity != allocAlignment && !suballocations2nd.empty()) + { + bool bufferImageGranularityConflict = false; + for(size_t nextSuballocIndex = suballocations2nd.size(); nextSuballocIndex--; ) + { + const VmaSuballocation& nextSuballoc = suballocations2nd[nextSuballocIndex]; + if(VmaBlocksOnSamePage(resultOffset, allocSize, nextSuballoc.offset, bufferImageGranularity)) + { + if(VmaIsBufferImageGranularityConflict(nextSuballoc.type, allocType)) + { + bufferImageGranularityConflict = true; + break; + } + } + else + // Already on previous page. + break; + } + if(bufferImageGranularityConflict) + { + resultOffset = VmaAlignDown(resultOffset, bufferImageGranularity); + } + } + + // There is enough free space. + const VkDeviceSize endOf1st = !suballocations1st.empty() ? + suballocations1st.back().offset + suballocations1st.back().size : + 0; + if(endOf1st + VMA_DEBUG_MARGIN <= resultOffset) + { + // Check previous suballocations for BufferImageGranularity conflicts. + // If conflict exists, allocation cannot be made here. + if(bufferImageGranularity > 1) + { + for(size_t prevSuballocIndex = suballocations1st.size(); prevSuballocIndex--; ) + { + const VmaSuballocation& prevSuballoc = suballocations1st[prevSuballocIndex]; + if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, resultOffset, bufferImageGranularity)) + { + if(VmaIsBufferImageGranularityConflict(allocType, prevSuballoc.type)) + { + return false; + } + } + else + { + // Already on next page. + break; + } + } + } + + // All tests passed: Success. + pAllocationRequest->offset = resultOffset; + pAllocationRequest->sumFreeSize = resultBaseOffset + allocSize - endOf1st; + pAllocationRequest->sumItemSize = 0; + // pAllocationRequest->item unused. + pAllocationRequest->itemsToMakeLostCount = 0; + pAllocationRequest->type = VmaAllocationRequestType::UpperAddress; + return true; + } + + return false; +} + +bool VmaBlockMetadata_Linear::CreateAllocationRequest_LowerAddress( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VkDeviceSize bufferImageGranularity, + VkDeviceSize allocSize, + VkDeviceSize allocAlignment, + VmaSuballocationType allocType, + bool canMakeOtherLost, + uint32_t strategy, + VmaAllocationRequest* pAllocationRequest) +{ + const VkDeviceSize size = GetSize(); + SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + + if(m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK) + { + // Try to allocate at the end of 1st vector. + + VkDeviceSize resultBaseOffset = 0; + if(!suballocations1st.empty()) + { + const VmaSuballocation& lastSuballoc = suballocations1st.back(); + resultBaseOffset = lastSuballoc.offset + lastSuballoc.size; + } + + // Start from offset equal to beginning of free space. + VkDeviceSize resultOffset = resultBaseOffset; + + // Apply VMA_DEBUG_MARGIN at the beginning. + if(VMA_DEBUG_MARGIN > 0) + { + resultOffset += VMA_DEBUG_MARGIN; + } + + // Apply alignment. + resultOffset = VmaAlignUp(resultOffset, allocAlignment); + + // Check previous suballocations for BufferImageGranularity conflicts. + // Make bigger alignment if necessary. + if(bufferImageGranularity > 1 && bufferImageGranularity != allocAlignment && !suballocations1st.empty()) + { + bool bufferImageGranularityConflict = false; + for(size_t prevSuballocIndex = suballocations1st.size(); prevSuballocIndex--; ) + { + const VmaSuballocation& prevSuballoc = suballocations1st[prevSuballocIndex]; + if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, resultOffset, bufferImageGranularity)) + { + if(VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType)) + { + bufferImageGranularityConflict = true; + break; + } + } + else + // Already on previous page. + break; + } + if(bufferImageGranularityConflict) + { + resultOffset = VmaAlignUp(resultOffset, bufferImageGranularity); + } + } + + const VkDeviceSize freeSpaceEnd = m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK ? + suballocations2nd.back().offset : size; + + // There is enough free space at the end after alignment. + if(resultOffset + allocSize + VMA_DEBUG_MARGIN <= freeSpaceEnd) + { + // Check next suballocations for BufferImageGranularity conflicts. + // If conflict exists, allocation cannot be made here. + if((allocSize % bufferImageGranularity || resultOffset % bufferImageGranularity) && m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK) + { + for(size_t nextSuballocIndex = suballocations2nd.size(); nextSuballocIndex--; ) + { + const VmaSuballocation& nextSuballoc = suballocations2nd[nextSuballocIndex]; + if(VmaBlocksOnSamePage(resultOffset, allocSize, nextSuballoc.offset, bufferImageGranularity)) + { + if(VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type)) + { + return false; + } + } + else + { + // Already on previous page. + break; + } + } + } + + // All tests passed: Success. + pAllocationRequest->offset = resultOffset; + pAllocationRequest->sumFreeSize = freeSpaceEnd - resultBaseOffset; + pAllocationRequest->sumItemSize = 0; + // pAllocationRequest->item, customData unused. + pAllocationRequest->type = VmaAllocationRequestType::EndOf1st; + pAllocationRequest->itemsToMakeLostCount = 0; + return true; + } + } + + // Wrap-around to end of 2nd vector. Try to allocate there, watching for the + // beginning of 1st vector as the end of free space. + if(m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER) + { + VMA_ASSERT(!suballocations1st.empty()); + + VkDeviceSize resultBaseOffset = 0; + if(!suballocations2nd.empty()) + { + const VmaSuballocation& lastSuballoc = suballocations2nd.back(); + resultBaseOffset = lastSuballoc.offset + lastSuballoc.size; + } + + // Start from offset equal to beginning of free space. + VkDeviceSize resultOffset = resultBaseOffset; + + // Apply VMA_DEBUG_MARGIN at the beginning. + if(VMA_DEBUG_MARGIN > 0) + { + resultOffset += VMA_DEBUG_MARGIN; + } + + // Apply alignment. + resultOffset = VmaAlignUp(resultOffset, allocAlignment); + + // Check previous suballocations for BufferImageGranularity conflicts. + // Make bigger alignment if necessary. + if(bufferImageGranularity > 1 && bufferImageGranularity != allocAlignment && !suballocations2nd.empty()) + { + bool bufferImageGranularityConflict = false; + for(size_t prevSuballocIndex = suballocations2nd.size(); prevSuballocIndex--; ) + { + const VmaSuballocation& prevSuballoc = suballocations2nd[prevSuballocIndex]; + if(VmaBlocksOnSamePage(prevSuballoc.offset, prevSuballoc.size, resultOffset, bufferImageGranularity)) + { + if(VmaIsBufferImageGranularityConflict(prevSuballoc.type, allocType)) + { + bufferImageGranularityConflict = true; + break; + } + } + else + // Already on previous page. + break; + } + if(bufferImageGranularityConflict) + { + resultOffset = VmaAlignUp(resultOffset, bufferImageGranularity); + } + } + + pAllocationRequest->itemsToMakeLostCount = 0; + pAllocationRequest->sumItemSize = 0; + size_t index1st = m_1stNullItemsBeginCount; + + if(canMakeOtherLost) + { + while(index1st < suballocations1st.size() && + resultOffset + allocSize + VMA_DEBUG_MARGIN > suballocations1st[index1st].offset) + { + // Next colliding allocation at the beginning of 1st vector found. Try to make it lost. + const VmaSuballocation& suballoc = suballocations1st[index1st]; + if(suballoc.type == VMA_SUBALLOCATION_TYPE_FREE) + { + // No problem. + } + else + { + VMA_ASSERT(suballoc.hAllocation != VK_NULL_HANDLE); + if(suballoc.hAllocation->CanBecomeLost() && + suballoc.hAllocation->GetLastUseFrameIndex() + frameInUseCount < currentFrameIndex) + { + ++pAllocationRequest->itemsToMakeLostCount; + pAllocationRequest->sumItemSize += suballoc.size; + } + else + { + return false; + } + } + ++index1st; + } + + // Check next suballocations for BufferImageGranularity conflicts. + // If conflict exists, we must mark more allocations lost or fail. + if(allocSize % bufferImageGranularity || resultOffset % bufferImageGranularity) + { + while(index1st < suballocations1st.size()) + { + const VmaSuballocation& suballoc = suballocations1st[index1st]; + if(VmaBlocksOnSamePage(resultOffset, allocSize, suballoc.offset, bufferImageGranularity)) + { + if(suballoc.hAllocation != VK_NULL_HANDLE) + { + // Not checking actual VmaIsBufferImageGranularityConflict(allocType, suballoc.type). + if(suballoc.hAllocation->CanBecomeLost() && + suballoc.hAllocation->GetLastUseFrameIndex() + frameInUseCount < currentFrameIndex) + { + ++pAllocationRequest->itemsToMakeLostCount; + pAllocationRequest->sumItemSize += suballoc.size; + } + else + { + return false; + } + } + } + else + { + // Already on next page. + break; + } + ++index1st; + } + } + + // Special case: There is not enough room at the end for this allocation, even after making all from the 1st lost. + if(index1st == suballocations1st.size() && + resultOffset + allocSize + VMA_DEBUG_MARGIN > size) + { + // TODO: This is a known bug that it's not yet implemented and the allocation is failing. + VMA_DEBUG_LOG("Unsupported special case in custom pool with linear allocation algorithm used as ring buffer with allocations that can be lost."); + } + } + + // There is enough free space at the end after alignment. + if((index1st == suballocations1st.size() && resultOffset + allocSize + VMA_DEBUG_MARGIN <= size) || + (index1st < suballocations1st.size() && resultOffset + allocSize + VMA_DEBUG_MARGIN <= suballocations1st[index1st].offset)) + { + // Check next suballocations for BufferImageGranularity conflicts. + // If conflict exists, allocation cannot be made here. + if(allocSize % bufferImageGranularity || resultOffset % bufferImageGranularity) + { + for(size_t nextSuballocIndex = index1st; + nextSuballocIndex < suballocations1st.size(); + nextSuballocIndex++) + { + const VmaSuballocation& nextSuballoc = suballocations1st[nextSuballocIndex]; + if(VmaBlocksOnSamePage(resultOffset, allocSize, nextSuballoc.offset, bufferImageGranularity)) + { + if(VmaIsBufferImageGranularityConflict(allocType, nextSuballoc.type)) + { + return false; + } + } + else + { + // Already on next page. + break; + } + } + } + + // All tests passed: Success. + pAllocationRequest->offset = resultOffset; + pAllocationRequest->sumFreeSize = + (index1st < suballocations1st.size() ? suballocations1st[index1st].offset : size) + - resultBaseOffset + - pAllocationRequest->sumItemSize; + pAllocationRequest->type = VmaAllocationRequestType::EndOf2nd; + // pAllocationRequest->item, customData unused. + return true; + } + } + + return false; +} + +bool VmaBlockMetadata_Linear::MakeRequestedAllocationsLost( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VmaAllocationRequest* pAllocationRequest) +{ + if(pAllocationRequest->itemsToMakeLostCount == 0) + { + return true; + } + + VMA_ASSERT(m_2ndVectorMode == SECOND_VECTOR_EMPTY || m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER); + + // We always start from 1st. + SuballocationVectorType* suballocations = &AccessSuballocations1st(); + size_t index = m_1stNullItemsBeginCount; + size_t madeLostCount = 0; + while(madeLostCount < pAllocationRequest->itemsToMakeLostCount) + { + if(index == suballocations->size()) + { + index = 0; + // If we get to the end of 1st, we wrap around to beginning of 2nd of 1st. + if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER) + { + suballocations = &AccessSuballocations2nd(); + } + // else: m_2ndVectorMode == SECOND_VECTOR_EMPTY: + // suballocations continues pointing at AccessSuballocations1st(). + VMA_ASSERT(!suballocations->empty()); + } + VmaSuballocation& suballoc = (*suballocations)[index]; + if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE) + { + VMA_ASSERT(suballoc.hAllocation != VK_NULL_HANDLE); + VMA_ASSERT(suballoc.hAllocation->CanBecomeLost()); + if(suballoc.hAllocation->MakeLost(currentFrameIndex, frameInUseCount)) + { + suballoc.type = VMA_SUBALLOCATION_TYPE_FREE; + suballoc.hAllocation = VK_NULL_HANDLE; + m_SumFreeSize += suballoc.size; + if(suballocations == &AccessSuballocations1st()) + { + ++m_1stNullItemsMiddleCount; + } + else + { + ++m_2ndNullItemsCount; + } + ++madeLostCount; + } + else + { + return false; + } + } + ++index; + } + + CleanupAfterFree(); + //VMA_HEAVY_ASSERT(Validate()); // Already called by CleanupAfterFree(). + + return true; +} + +uint32_t VmaBlockMetadata_Linear::MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount) +{ + uint32_t lostAllocationCount = 0; + + SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + for(size_t i = m_1stNullItemsBeginCount, count = suballocations1st.size(); i < count; ++i) + { + VmaSuballocation& suballoc = suballocations1st[i]; + if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE && + suballoc.hAllocation->CanBecomeLost() && + suballoc.hAllocation->MakeLost(currentFrameIndex, frameInUseCount)) + { + suballoc.type = VMA_SUBALLOCATION_TYPE_FREE; + suballoc.hAllocation = VK_NULL_HANDLE; + ++m_1stNullItemsMiddleCount; + m_SumFreeSize += suballoc.size; + ++lostAllocationCount; + } + } + + SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + for(size_t i = 0, count = suballocations2nd.size(); i < count; ++i) + { + VmaSuballocation& suballoc = suballocations2nd[i]; + if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE && + suballoc.hAllocation->CanBecomeLost() && + suballoc.hAllocation->MakeLost(currentFrameIndex, frameInUseCount)) + { + suballoc.type = VMA_SUBALLOCATION_TYPE_FREE; + suballoc.hAllocation = VK_NULL_HANDLE; + ++m_2ndNullItemsCount; + m_SumFreeSize += suballoc.size; + ++lostAllocationCount; + } + } + + if(lostAllocationCount) + { + CleanupAfterFree(); + } + + return lostAllocationCount; +} + +VkResult VmaBlockMetadata_Linear::CheckCorruption(const void* pBlockData) +{ + SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + for(size_t i = m_1stNullItemsBeginCount, count = suballocations1st.size(); i < count; ++i) + { + const VmaSuballocation& suballoc = suballocations1st[i]; + if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE) + { + if(!VmaValidateMagicValue(pBlockData, suballoc.offset - VMA_DEBUG_MARGIN)) + { + VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED BEFORE VALIDATED ALLOCATION!"); + return VK_ERROR_UNKNOWN; + } + if(!VmaValidateMagicValue(pBlockData, suballoc.offset + suballoc.size)) + { + VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!"); + return VK_ERROR_UNKNOWN; + } + } + } + + SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + for(size_t i = 0, count = suballocations2nd.size(); i < count; ++i) + { + const VmaSuballocation& suballoc = suballocations2nd[i]; + if(suballoc.type != VMA_SUBALLOCATION_TYPE_FREE) + { + if(!VmaValidateMagicValue(pBlockData, suballoc.offset - VMA_DEBUG_MARGIN)) + { + VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED BEFORE VALIDATED ALLOCATION!"); + return VK_ERROR_UNKNOWN; + } + if(!VmaValidateMagicValue(pBlockData, suballoc.offset + suballoc.size)) + { + VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER VALIDATED ALLOCATION!"); + return VK_ERROR_UNKNOWN; + } + } + } + + return VK_SUCCESS; +} + +void VmaBlockMetadata_Linear::Alloc( + const VmaAllocationRequest& request, + VmaSuballocationType type, + VkDeviceSize allocSize, + VmaAllocation hAllocation) +{ + const VmaSuballocation newSuballoc = { request.offset, allocSize, hAllocation, type }; + + switch(request.type) + { + case VmaAllocationRequestType::UpperAddress: + { + VMA_ASSERT(m_2ndVectorMode != SECOND_VECTOR_RING_BUFFER && + "CRITICAL ERROR: Trying to use linear allocator as double stack while it was already used as ring buffer."); + SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + suballocations2nd.push_back(newSuballoc); + m_2ndVectorMode = SECOND_VECTOR_DOUBLE_STACK; + } + break; + case VmaAllocationRequestType::EndOf1st: + { + SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + + VMA_ASSERT(suballocations1st.empty() || + request.offset >= suballocations1st.back().offset + suballocations1st.back().size); + // Check if it fits before the end of the block. + VMA_ASSERT(request.offset + allocSize <= GetSize()); + + suballocations1st.push_back(newSuballoc); + } + break; + case VmaAllocationRequestType::EndOf2nd: + { + SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + // New allocation at the end of 2-part ring buffer, so before first allocation from 1st vector. + VMA_ASSERT(!suballocations1st.empty() && + request.offset + allocSize <= suballocations1st[m_1stNullItemsBeginCount].offset); + SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + + switch(m_2ndVectorMode) + { + case SECOND_VECTOR_EMPTY: + // First allocation from second part ring buffer. + VMA_ASSERT(suballocations2nd.empty()); + m_2ndVectorMode = SECOND_VECTOR_RING_BUFFER; + break; + case SECOND_VECTOR_RING_BUFFER: + // 2-part ring buffer is already started. + VMA_ASSERT(!suballocations2nd.empty()); + break; + case SECOND_VECTOR_DOUBLE_STACK: + VMA_ASSERT(0 && "CRITICAL ERROR: Trying to use linear allocator as ring buffer while it was already used as double stack."); + break; + default: + VMA_ASSERT(0); + } + + suballocations2nd.push_back(newSuballoc); + } + break; + default: + VMA_ASSERT(0 && "CRITICAL INTERNAL ERROR."); + } + + m_SumFreeSize -= newSuballoc.size; +} + +void VmaBlockMetadata_Linear::Free(const VmaAllocation allocation) +{ + FreeAtOffset(allocation->GetOffset()); +} + +void VmaBlockMetadata_Linear::FreeAtOffset(VkDeviceSize offset) +{ + SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + + if(!suballocations1st.empty()) + { + // First allocation: Mark it as next empty at the beginning. + VmaSuballocation& firstSuballoc = suballocations1st[m_1stNullItemsBeginCount]; + if(firstSuballoc.offset == offset) + { + firstSuballoc.type = VMA_SUBALLOCATION_TYPE_FREE; + firstSuballoc.hAllocation = VK_NULL_HANDLE; + m_SumFreeSize += firstSuballoc.size; + ++m_1stNullItemsBeginCount; + CleanupAfterFree(); + return; + } + } + + // Last allocation in 2-part ring buffer or top of upper stack (same logic). + if(m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER || + m_2ndVectorMode == SECOND_VECTOR_DOUBLE_STACK) + { + VmaSuballocation& lastSuballoc = suballocations2nd.back(); + if(lastSuballoc.offset == offset) + { + m_SumFreeSize += lastSuballoc.size; + suballocations2nd.pop_back(); + CleanupAfterFree(); + return; + } + } + // Last allocation in 1st vector. + else if(m_2ndVectorMode == SECOND_VECTOR_EMPTY) + { + VmaSuballocation& lastSuballoc = suballocations1st.back(); + if(lastSuballoc.offset == offset) + { + m_SumFreeSize += lastSuballoc.size; + suballocations1st.pop_back(); + CleanupAfterFree(); + return; + } + } + + // Item from the middle of 1st vector. + { + VmaSuballocation refSuballoc; + refSuballoc.offset = offset; + // Rest of members stays uninitialized intentionally for better performance. + SuballocationVectorType::iterator it = VmaBinaryFindSorted( + suballocations1st.begin() + m_1stNullItemsBeginCount, + suballocations1st.end(), + refSuballoc, + VmaSuballocationOffsetLess()); + if(it != suballocations1st.end()) + { + it->type = VMA_SUBALLOCATION_TYPE_FREE; + it->hAllocation = VK_NULL_HANDLE; + ++m_1stNullItemsMiddleCount; + m_SumFreeSize += it->size; + CleanupAfterFree(); + return; + } + } + + if(m_2ndVectorMode != SECOND_VECTOR_EMPTY) + { + // Item from the middle of 2nd vector. + VmaSuballocation refSuballoc; + refSuballoc.offset = offset; + // Rest of members stays uninitialized intentionally for better performance. + SuballocationVectorType::iterator it = m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER ? + VmaBinaryFindSorted(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc, VmaSuballocationOffsetLess()) : + VmaBinaryFindSorted(suballocations2nd.begin(), suballocations2nd.end(), refSuballoc, VmaSuballocationOffsetGreater()); + if(it != suballocations2nd.end()) + { + it->type = VMA_SUBALLOCATION_TYPE_FREE; + it->hAllocation = VK_NULL_HANDLE; + ++m_2ndNullItemsCount; + m_SumFreeSize += it->size; + CleanupAfterFree(); + return; + } + } + + VMA_ASSERT(0 && "Allocation to free not found in linear allocator!"); +} + +bool VmaBlockMetadata_Linear::ShouldCompact1st() const +{ + const size_t nullItemCount = m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount; + const size_t suballocCount = AccessSuballocations1st().size(); + return suballocCount > 32 && nullItemCount * 2 >= (suballocCount - nullItemCount) * 3; +} + +void VmaBlockMetadata_Linear::CleanupAfterFree() +{ + SuballocationVectorType& suballocations1st = AccessSuballocations1st(); + SuballocationVectorType& suballocations2nd = AccessSuballocations2nd(); + + if(IsEmpty()) + { + suballocations1st.clear(); + suballocations2nd.clear(); + m_1stNullItemsBeginCount = 0; + m_1stNullItemsMiddleCount = 0; + m_2ndNullItemsCount = 0; + m_2ndVectorMode = SECOND_VECTOR_EMPTY; + } + else + { + const size_t suballoc1stCount = suballocations1st.size(); + const size_t nullItem1stCount = m_1stNullItemsBeginCount + m_1stNullItemsMiddleCount; + VMA_ASSERT(nullItem1stCount <= suballoc1stCount); + + // Find more null items at the beginning of 1st vector. + while(m_1stNullItemsBeginCount < suballoc1stCount && + suballocations1st[m_1stNullItemsBeginCount].hAllocation == VK_NULL_HANDLE) + { + ++m_1stNullItemsBeginCount; + --m_1stNullItemsMiddleCount; + } + + // Find more null items at the end of 1st vector. + while(m_1stNullItemsMiddleCount > 0 && + suballocations1st.back().hAllocation == VK_NULL_HANDLE) + { + --m_1stNullItemsMiddleCount; + suballocations1st.pop_back(); + } + + // Find more null items at the end of 2nd vector. + while(m_2ndNullItemsCount > 0 && + suballocations2nd.back().hAllocation == VK_NULL_HANDLE) + { + --m_2ndNullItemsCount; + suballocations2nd.pop_back(); + } + + // Find more null items at the beginning of 2nd vector. + while(m_2ndNullItemsCount > 0 && + suballocations2nd[0].hAllocation == VK_NULL_HANDLE) + { + --m_2ndNullItemsCount; + VmaVectorRemove(suballocations2nd, 0); + } + + if(ShouldCompact1st()) + { + const size_t nonNullItemCount = suballoc1stCount - nullItem1stCount; + size_t srcIndex = m_1stNullItemsBeginCount; + for(size_t dstIndex = 0; dstIndex < nonNullItemCount; ++dstIndex) + { + while(suballocations1st[srcIndex].hAllocation == VK_NULL_HANDLE) + { + ++srcIndex; + } + if(dstIndex != srcIndex) + { + suballocations1st[dstIndex] = suballocations1st[srcIndex]; + } + ++srcIndex; + } + suballocations1st.resize(nonNullItemCount); + m_1stNullItemsBeginCount = 0; + m_1stNullItemsMiddleCount = 0; + } + + // 2nd vector became empty. + if(suballocations2nd.empty()) + { + m_2ndVectorMode = SECOND_VECTOR_EMPTY; + } + + // 1st vector became empty. + if(suballocations1st.size() - m_1stNullItemsBeginCount == 0) + { + suballocations1st.clear(); + m_1stNullItemsBeginCount = 0; + + if(!suballocations2nd.empty() && m_2ndVectorMode == SECOND_VECTOR_RING_BUFFER) + { + // Swap 1st with 2nd. Now 2nd is empty. + m_2ndVectorMode = SECOND_VECTOR_EMPTY; + m_1stNullItemsMiddleCount = m_2ndNullItemsCount; + while(m_1stNullItemsBeginCount < suballocations2nd.size() && + suballocations2nd[m_1stNullItemsBeginCount].hAllocation == VK_NULL_HANDLE) + { + ++m_1stNullItemsBeginCount; + --m_1stNullItemsMiddleCount; + } + m_2ndNullItemsCount = 0; + m_1stVectorIndex ^= 1; + } + } + } + + VMA_HEAVY_ASSERT(Validate()); +} + + +//////////////////////////////////////////////////////////////////////////////// +// class VmaBlockMetadata_Buddy + +VmaBlockMetadata_Buddy::VmaBlockMetadata_Buddy(VmaAllocator hAllocator) : + VmaBlockMetadata(hAllocator), + m_Root(VMA_NULL), + m_AllocationCount(0), + m_FreeCount(1), + m_SumFreeSize(0) +{ + memset(m_FreeList, 0, sizeof(m_FreeList)); +} + +VmaBlockMetadata_Buddy::~VmaBlockMetadata_Buddy() +{ + DeleteNode(m_Root); +} + +void VmaBlockMetadata_Buddy::Init(VkDeviceSize size) +{ + VmaBlockMetadata::Init(size); + + m_UsableSize = VmaPrevPow2(size); + m_SumFreeSize = m_UsableSize; + + // Calculate m_LevelCount. + m_LevelCount = 1; + while(m_LevelCount < MAX_LEVELS && + LevelToNodeSize(m_LevelCount) >= MIN_NODE_SIZE) + { + ++m_LevelCount; + } + + Node* rootNode = vma_new(GetAllocationCallbacks(), Node)(); + rootNode->offset = 0; + rootNode->type = Node::TYPE_FREE; + rootNode->parent = VMA_NULL; + rootNode->buddy = VMA_NULL; + + m_Root = rootNode; + AddToFreeListFront(0, rootNode); +} + +bool VmaBlockMetadata_Buddy::Validate() const +{ + // Validate tree. + ValidationContext ctx; + if(!ValidateNode(ctx, VMA_NULL, m_Root, 0, LevelToNodeSize(0))) + { + VMA_VALIDATE(false && "ValidateNode failed."); + } + VMA_VALIDATE(m_AllocationCount == ctx.calculatedAllocationCount); + VMA_VALIDATE(m_SumFreeSize == ctx.calculatedSumFreeSize); + + // Validate free node lists. + for(uint32_t level = 0; level < m_LevelCount; ++level) + { + VMA_VALIDATE(m_FreeList[level].front == VMA_NULL || + m_FreeList[level].front->free.prev == VMA_NULL); + + for(Node* node = m_FreeList[level].front; + node != VMA_NULL; + node = node->free.next) + { + VMA_VALIDATE(node->type == Node::TYPE_FREE); + + if(node->free.next == VMA_NULL) + { + VMA_VALIDATE(m_FreeList[level].back == node); + } + else + { + VMA_VALIDATE(node->free.next->free.prev == node); + } + } + } + + // Validate that free lists ar higher levels are empty. + for(uint32_t level = m_LevelCount; level < MAX_LEVELS; ++level) + { + VMA_VALIDATE(m_FreeList[level].front == VMA_NULL && m_FreeList[level].back == VMA_NULL); + } + + return true; +} + +VkDeviceSize VmaBlockMetadata_Buddy::GetUnusedRangeSizeMax() const +{ + for(uint32_t level = 0; level < m_LevelCount; ++level) + { + if(m_FreeList[level].front != VMA_NULL) + { + return LevelToNodeSize(level); + } + } + return 0; +} + +void VmaBlockMetadata_Buddy::CalcAllocationStatInfo(VmaStatInfo& outInfo) const +{ + const VkDeviceSize unusableSize = GetUnusableSize(); + + outInfo.blockCount = 1; + + outInfo.allocationCount = outInfo.unusedRangeCount = 0; + outInfo.usedBytes = outInfo.unusedBytes = 0; + + outInfo.allocationSizeMax = outInfo.unusedRangeSizeMax = 0; + outInfo.allocationSizeMin = outInfo.unusedRangeSizeMin = UINT64_MAX; + outInfo.allocationSizeAvg = outInfo.unusedRangeSizeAvg = 0; // Unused. + + CalcAllocationStatInfoNode(outInfo, m_Root, LevelToNodeSize(0)); + + if(unusableSize > 0) + { + ++outInfo.unusedRangeCount; + outInfo.unusedBytes += unusableSize; + outInfo.unusedRangeSizeMax = VMA_MAX(outInfo.unusedRangeSizeMax, unusableSize); + outInfo.unusedRangeSizeMin = VMA_MIN(outInfo.unusedRangeSizeMin, unusableSize); + } +} + +void VmaBlockMetadata_Buddy::AddPoolStats(VmaPoolStats& inoutStats) const +{ + const VkDeviceSize unusableSize = GetUnusableSize(); + + inoutStats.size += GetSize(); + inoutStats.unusedSize += m_SumFreeSize + unusableSize; + inoutStats.allocationCount += m_AllocationCount; + inoutStats.unusedRangeCount += m_FreeCount; + inoutStats.unusedRangeSizeMax = VMA_MAX(inoutStats.unusedRangeSizeMax, GetUnusedRangeSizeMax()); + + if(unusableSize > 0) + { + ++inoutStats.unusedRangeCount; + // Not updating inoutStats.unusedRangeSizeMax with unusableSize because this space is not available for allocations. + } +} + +#if VMA_STATS_STRING_ENABLED + +void VmaBlockMetadata_Buddy::PrintDetailedMap(class VmaJsonWriter& json) const +{ + // TODO optimize + VmaStatInfo stat; + CalcAllocationStatInfo(stat); + + PrintDetailedMap_Begin( + json, + stat.unusedBytes, + stat.allocationCount, + stat.unusedRangeCount); + + PrintDetailedMapNode(json, m_Root, LevelToNodeSize(0)); + + const VkDeviceSize unusableSize = GetUnusableSize(); + if(unusableSize > 0) + { + PrintDetailedMap_UnusedRange(json, + m_UsableSize, // offset + unusableSize); // size + } + + PrintDetailedMap_End(json); +} + +#endif // #if VMA_STATS_STRING_ENABLED + +bool VmaBlockMetadata_Buddy::CreateAllocationRequest( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VkDeviceSize bufferImageGranularity, + VkDeviceSize allocSize, + VkDeviceSize allocAlignment, + bool upperAddress, + VmaSuballocationType allocType, + bool canMakeOtherLost, + uint32_t strategy, + VmaAllocationRequest* pAllocationRequest) +{ + VMA_ASSERT(!upperAddress && "VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT can be used only with linear algorithm."); + + // Simple way to respect bufferImageGranularity. May be optimized some day. + // Whenever it might be an OPTIMAL image... + if(allocType == VMA_SUBALLOCATION_TYPE_UNKNOWN || + allocType == VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN || + allocType == VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL) + { + allocAlignment = VMA_MAX(allocAlignment, bufferImageGranularity); + allocSize = VMA_MAX(allocSize, bufferImageGranularity); + } + + if(allocSize > m_UsableSize) + { + return false; + } + + const uint32_t targetLevel = AllocSizeToLevel(allocSize); + for(uint32_t level = targetLevel + 1; level--; ) + { + for(Node* freeNode = m_FreeList[level].front; + freeNode != VMA_NULL; + freeNode = freeNode->free.next) + { + if(freeNode->offset % allocAlignment == 0) + { + pAllocationRequest->type = VmaAllocationRequestType::Normal; + pAllocationRequest->offset = freeNode->offset; + pAllocationRequest->sumFreeSize = LevelToNodeSize(level); + pAllocationRequest->sumItemSize = 0; + pAllocationRequest->itemsToMakeLostCount = 0; + pAllocationRequest->customData = (void*)(uintptr_t)level; + return true; + } + } + } + + return false; +} + +bool VmaBlockMetadata_Buddy::MakeRequestedAllocationsLost( + uint32_t currentFrameIndex, + uint32_t frameInUseCount, + VmaAllocationRequest* pAllocationRequest) +{ + /* + Lost allocations are not supported in buddy allocator at the moment. + Support might be added in the future. + */ + return pAllocationRequest->itemsToMakeLostCount == 0; +} + +uint32_t VmaBlockMetadata_Buddy::MakeAllocationsLost(uint32_t currentFrameIndex, uint32_t frameInUseCount) +{ + /* + Lost allocations are not supported in buddy allocator at the moment. + Support might be added in the future. + */ + return 0; +} + +void VmaBlockMetadata_Buddy::Alloc( + const VmaAllocationRequest& request, + VmaSuballocationType type, + VkDeviceSize allocSize, + VmaAllocation hAllocation) +{ + VMA_ASSERT(request.type == VmaAllocationRequestType::Normal); + + const uint32_t targetLevel = AllocSizeToLevel(allocSize); + uint32_t currLevel = (uint32_t)(uintptr_t)request.customData; + + Node* currNode = m_FreeList[currLevel].front; + VMA_ASSERT(currNode != VMA_NULL && currNode->type == Node::TYPE_FREE); + while(currNode->offset != request.offset) + { + currNode = currNode->free.next; + VMA_ASSERT(currNode != VMA_NULL && currNode->type == Node::TYPE_FREE); + } + + // Go down, splitting free nodes. + while(currLevel < targetLevel) + { + // currNode is already first free node at currLevel. + // Remove it from list of free nodes at this currLevel. + RemoveFromFreeList(currLevel, currNode); + + const uint32_t childrenLevel = currLevel + 1; + + // Create two free sub-nodes. + Node* leftChild = vma_new(GetAllocationCallbacks(), Node)(); + Node* rightChild = vma_new(GetAllocationCallbacks(), Node)(); + + leftChild->offset = currNode->offset; + leftChild->type = Node::TYPE_FREE; + leftChild->parent = currNode; + leftChild->buddy = rightChild; + + rightChild->offset = currNode->offset + LevelToNodeSize(childrenLevel); + rightChild->type = Node::TYPE_FREE; + rightChild->parent = currNode; + rightChild->buddy = leftChild; + + // Convert current currNode to split type. + currNode->type = Node::TYPE_SPLIT; + currNode->split.leftChild = leftChild; + + // Add child nodes to free list. Order is important! + AddToFreeListFront(childrenLevel, rightChild); + AddToFreeListFront(childrenLevel, leftChild); + + ++m_FreeCount; + //m_SumFreeSize -= LevelToNodeSize(currLevel) % 2; // Useful only when level node sizes can be non power of 2. + ++currLevel; + currNode = m_FreeList[currLevel].front; + + /* + We can be sure that currNode, as left child of node previously split, + also fullfills the alignment requirement. + */ + } + + // Remove from free list. + VMA_ASSERT(currLevel == targetLevel && + currNode != VMA_NULL && + currNode->type == Node::TYPE_FREE); + RemoveFromFreeList(currLevel, currNode); + + // Convert to allocation node. + currNode->type = Node::TYPE_ALLOCATION; + currNode->allocation.alloc = hAllocation; + + ++m_AllocationCount; + --m_FreeCount; + m_SumFreeSize -= allocSize; +} + +void VmaBlockMetadata_Buddy::DeleteNode(Node* node) +{ + if(node->type == Node::TYPE_SPLIT) + { + DeleteNode(node->split.leftChild->buddy); + DeleteNode(node->split.leftChild); + } + + vma_delete(GetAllocationCallbacks(), node); +} + +bool VmaBlockMetadata_Buddy::ValidateNode(ValidationContext& ctx, const Node* parent, const Node* curr, uint32_t level, VkDeviceSize levelNodeSize) const +{ + VMA_VALIDATE(level < m_LevelCount); + VMA_VALIDATE(curr->parent == parent); + VMA_VALIDATE((curr->buddy == VMA_NULL) == (parent == VMA_NULL)); + VMA_VALIDATE(curr->buddy == VMA_NULL || curr->buddy->buddy == curr); + switch(curr->type) + { + case Node::TYPE_FREE: + // curr->free.prev, next are validated separately. + ctx.calculatedSumFreeSize += levelNodeSize; + ++ctx.calculatedFreeCount; + break; + case Node::TYPE_ALLOCATION: + ++ctx.calculatedAllocationCount; + ctx.calculatedSumFreeSize += levelNodeSize - curr->allocation.alloc->GetSize(); + VMA_VALIDATE(curr->allocation.alloc != VK_NULL_HANDLE); + break; + case Node::TYPE_SPLIT: + { + const uint32_t childrenLevel = level + 1; + const VkDeviceSize childrenLevelNodeSize = levelNodeSize / 2; + const Node* const leftChild = curr->split.leftChild; + VMA_VALIDATE(leftChild != VMA_NULL); + VMA_VALIDATE(leftChild->offset == curr->offset); + if(!ValidateNode(ctx, curr, leftChild, childrenLevel, childrenLevelNodeSize)) + { + VMA_VALIDATE(false && "ValidateNode for left child failed."); + } + const Node* const rightChild = leftChild->buddy; + VMA_VALIDATE(rightChild->offset == curr->offset + childrenLevelNodeSize); + if(!ValidateNode(ctx, curr, rightChild, childrenLevel, childrenLevelNodeSize)) + { + VMA_VALIDATE(false && "ValidateNode for right child failed."); + } + } + break; + default: + return false; + } + + return true; +} + +uint32_t VmaBlockMetadata_Buddy::AllocSizeToLevel(VkDeviceSize allocSize) const +{ + // I know this could be optimized somehow e.g. by using std::log2p1 from C++20. + uint32_t level = 0; + VkDeviceSize currLevelNodeSize = m_UsableSize; + VkDeviceSize nextLevelNodeSize = currLevelNodeSize >> 1; + while(allocSize <= nextLevelNodeSize && level + 1 < m_LevelCount) + { + ++level; + currLevelNodeSize = nextLevelNodeSize; + nextLevelNodeSize = currLevelNodeSize >> 1; + } + return level; +} + +void VmaBlockMetadata_Buddy::FreeAtOffset(VmaAllocation alloc, VkDeviceSize offset) +{ + // Find node and level. + Node* node = m_Root; + VkDeviceSize nodeOffset = 0; + uint32_t level = 0; + VkDeviceSize levelNodeSize = LevelToNodeSize(0); + while(node->type == Node::TYPE_SPLIT) + { + const VkDeviceSize nextLevelSize = levelNodeSize >> 1; + if(offset < nodeOffset + nextLevelSize) + { + node = node->split.leftChild; + } + else + { + node = node->split.leftChild->buddy; + nodeOffset += nextLevelSize; + } + ++level; + levelNodeSize = nextLevelSize; + } + + VMA_ASSERT(node != VMA_NULL && node->type == Node::TYPE_ALLOCATION); + VMA_ASSERT(alloc == VK_NULL_HANDLE || node->allocation.alloc == alloc); + + ++m_FreeCount; + --m_AllocationCount; + m_SumFreeSize += alloc->GetSize(); + + node->type = Node::TYPE_FREE; + + // Join free nodes if possible. + while(level > 0 && node->buddy->type == Node::TYPE_FREE) + { + RemoveFromFreeList(level, node->buddy); + Node* const parent = node->parent; + + vma_delete(GetAllocationCallbacks(), node->buddy); + vma_delete(GetAllocationCallbacks(), node); + parent->type = Node::TYPE_FREE; + + node = parent; + --level; + //m_SumFreeSize += LevelToNodeSize(level) % 2; // Useful only when level node sizes can be non power of 2. + --m_FreeCount; + } + + AddToFreeListFront(level, node); +} + +void VmaBlockMetadata_Buddy::CalcAllocationStatInfoNode(VmaStatInfo& outInfo, const Node* node, VkDeviceSize levelNodeSize) const +{ + switch(node->type) + { + case Node::TYPE_FREE: + ++outInfo.unusedRangeCount; + outInfo.unusedBytes += levelNodeSize; + outInfo.unusedRangeSizeMax = VMA_MAX(outInfo.unusedRangeSizeMax, levelNodeSize); + outInfo.unusedRangeSizeMin = VMA_MAX(outInfo.unusedRangeSizeMin, levelNodeSize); + break; + case Node::TYPE_ALLOCATION: + { + const VkDeviceSize allocSize = node->allocation.alloc->GetSize(); + ++outInfo.allocationCount; + outInfo.usedBytes += allocSize; + outInfo.allocationSizeMax = VMA_MAX(outInfo.allocationSizeMax, allocSize); + outInfo.allocationSizeMin = VMA_MAX(outInfo.allocationSizeMin, allocSize); + + const VkDeviceSize unusedRangeSize = levelNodeSize - allocSize; + if(unusedRangeSize > 0) + { + ++outInfo.unusedRangeCount; + outInfo.unusedBytes += unusedRangeSize; + outInfo.unusedRangeSizeMax = VMA_MAX(outInfo.unusedRangeSizeMax, unusedRangeSize); + outInfo.unusedRangeSizeMin = VMA_MAX(outInfo.unusedRangeSizeMin, unusedRangeSize); + } + } + break; + case Node::TYPE_SPLIT: + { + const VkDeviceSize childrenNodeSize = levelNodeSize / 2; + const Node* const leftChild = node->split.leftChild; + CalcAllocationStatInfoNode(outInfo, leftChild, childrenNodeSize); + const Node* const rightChild = leftChild->buddy; + CalcAllocationStatInfoNode(outInfo, rightChild, childrenNodeSize); + } + break; + default: + VMA_ASSERT(0); + } +} + +void VmaBlockMetadata_Buddy::AddToFreeListFront(uint32_t level, Node* node) +{ + VMA_ASSERT(node->type == Node::TYPE_FREE); + + // List is empty. + Node* const frontNode = m_FreeList[level].front; + if(frontNode == VMA_NULL) + { + VMA_ASSERT(m_FreeList[level].back == VMA_NULL); + node->free.prev = node->free.next = VMA_NULL; + m_FreeList[level].front = m_FreeList[level].back = node; + } + else + { + VMA_ASSERT(frontNode->free.prev == VMA_NULL); + node->free.prev = VMA_NULL; + node->free.next = frontNode; + frontNode->free.prev = node; + m_FreeList[level].front = node; + } +} + +void VmaBlockMetadata_Buddy::RemoveFromFreeList(uint32_t level, Node* node) +{ + VMA_ASSERT(m_FreeList[level].front != VMA_NULL); + + // It is at the front. + if(node->free.prev == VMA_NULL) + { + VMA_ASSERT(m_FreeList[level].front == node); + m_FreeList[level].front = node->free.next; + } + else + { + Node* const prevFreeNode = node->free.prev; + VMA_ASSERT(prevFreeNode->free.next == node); + prevFreeNode->free.next = node->free.next; + } + + // It is at the back. + if(node->free.next == VMA_NULL) + { + VMA_ASSERT(m_FreeList[level].back == node); + m_FreeList[level].back = node->free.prev; + } + else + { + Node* const nextFreeNode = node->free.next; + VMA_ASSERT(nextFreeNode->free.prev == node); + nextFreeNode->free.prev = node->free.prev; + } +} + +#if VMA_STATS_STRING_ENABLED +void VmaBlockMetadata_Buddy::PrintDetailedMapNode(class VmaJsonWriter& json, const Node* node, VkDeviceSize levelNodeSize) const +{ + switch(node->type) + { + case Node::TYPE_FREE: + PrintDetailedMap_UnusedRange(json, node->offset, levelNodeSize); + break; + case Node::TYPE_ALLOCATION: + { + PrintDetailedMap_Allocation(json, node->offset, node->allocation.alloc); + const VkDeviceSize allocSize = node->allocation.alloc->GetSize(); + if(allocSize < levelNodeSize) + { + PrintDetailedMap_UnusedRange(json, node->offset + allocSize, levelNodeSize - allocSize); + } + } + break; + case Node::TYPE_SPLIT: + { + const VkDeviceSize childrenNodeSize = levelNodeSize / 2; + const Node* const leftChild = node->split.leftChild; + PrintDetailedMapNode(json, leftChild, childrenNodeSize); + const Node* const rightChild = leftChild->buddy; + PrintDetailedMapNode(json, rightChild, childrenNodeSize); + } + break; + default: + VMA_ASSERT(0); + } +} +#endif // #if VMA_STATS_STRING_ENABLED + + //////////////////////////////////////////////////////////////////////////////// // class VmaDeviceMemoryBlock VmaDeviceMemoryBlock::VmaDeviceMemoryBlock(VmaAllocator hAllocator) : - m_Metadata(hAllocator), + m_pMetadata(VMA_NULL), m_MemoryTypeIndex(UINT32_MAX), + m_Id(0), m_hMemory(VK_NULL_HANDLE), m_MapCount(0), m_pMappedData(VMA_NULL) @@ -6274,38 +10788,74 @@ VmaDeviceMemoryBlock::VmaDeviceMemoryBlock(VmaAllocator hAllocator) : } void VmaDeviceMemoryBlock::Init( + VmaAllocator hAllocator, + VmaPool hParentPool, uint32_t newMemoryTypeIndex, VkDeviceMemory newMemory, - VkDeviceSize newSize) + VkDeviceSize newSize, + uint32_t id, + uint32_t algorithm) { VMA_ASSERT(m_hMemory == VK_NULL_HANDLE); + m_hParentPool = hParentPool; m_MemoryTypeIndex = newMemoryTypeIndex; + m_Id = id; m_hMemory = newMemory; - m_Metadata.Init(newSize); + switch(algorithm) + { + case VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT: + m_pMetadata = vma_new(hAllocator, VmaBlockMetadata_Linear)(hAllocator); + break; + case VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT: + m_pMetadata = vma_new(hAllocator, VmaBlockMetadata_Buddy)(hAllocator); + break; + default: + VMA_ASSERT(0); + // Fall-through. + case 0: + m_pMetadata = vma_new(hAllocator, VmaBlockMetadata_Generic)(hAllocator); + } + m_pMetadata->Init(newSize); } void VmaDeviceMemoryBlock::Destroy(VmaAllocator allocator) { // This is the most important assert in the entire library. // Hitting it means you have some memory leak - unreleased VmaAllocation objects. - VMA_ASSERT(m_Metadata.IsEmpty() && "Some allocations were not freed before destruction of this memory block!"); - + VMA_ASSERT(m_pMetadata->IsEmpty() && "Some allocations were not freed before destruction of this memory block!"); + VMA_ASSERT(m_hMemory != VK_NULL_HANDLE); - allocator->FreeVulkanMemory(m_MemoryTypeIndex, m_Metadata.GetSize(), m_hMemory); + allocator->FreeVulkanMemory(m_MemoryTypeIndex, m_pMetadata->GetSize(), m_hMemory); m_hMemory = VK_NULL_HANDLE; + + vma_delete(allocator, m_pMetadata); + m_pMetadata = VMA_NULL; } bool VmaDeviceMemoryBlock::Validate() const { - if((m_hMemory == VK_NULL_HANDLE) || - (m_Metadata.GetSize() == 0)) + VMA_VALIDATE((m_hMemory != VK_NULL_HANDLE) && + (m_pMetadata->GetSize() != 0)); + + return m_pMetadata->Validate(); +} + +VkResult VmaDeviceMemoryBlock::CheckCorruption(VmaAllocator hAllocator) +{ + void* pData = nullptr; + VkResult res = Map(hAllocator, 1, &pData); + if(res != VK_SUCCESS) { - return false; + return res; } - - return m_Metadata.Validate(); + + res = m_pMetadata->CheckCorruption(pData); + + Unmap(hAllocator, 1); + + return res; } VkResult VmaDeviceMemoryBlock::Map(VmaAllocator hAllocator, uint32_t count, void** ppData) @@ -6370,36 +10920,84 @@ void VmaDeviceMemoryBlock::Unmap(VmaAllocator hAllocator, uint32_t count) } } +VkResult VmaDeviceMemoryBlock::WriteMagicValueAroundAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize) +{ + VMA_ASSERT(VMA_DEBUG_MARGIN > 0 && VMA_DEBUG_MARGIN % 4 == 0 && VMA_DEBUG_DETECT_CORRUPTION); + VMA_ASSERT(allocOffset >= VMA_DEBUG_MARGIN); + + void* pData; + VkResult res = Map(hAllocator, 1, &pData); + if(res != VK_SUCCESS) + { + return res; + } + + VmaWriteMagicValue(pData, allocOffset - VMA_DEBUG_MARGIN); + VmaWriteMagicValue(pData, allocOffset + allocSize); + + Unmap(hAllocator, 1); + + return VK_SUCCESS; +} + +VkResult VmaDeviceMemoryBlock::ValidateMagicValueAroundAllocation(VmaAllocator hAllocator, VkDeviceSize allocOffset, VkDeviceSize allocSize) +{ + VMA_ASSERT(VMA_DEBUG_MARGIN > 0 && VMA_DEBUG_MARGIN % 4 == 0 && VMA_DEBUG_DETECT_CORRUPTION); + VMA_ASSERT(allocOffset >= VMA_DEBUG_MARGIN); + + void* pData; + VkResult res = Map(hAllocator, 1, &pData); + if(res != VK_SUCCESS) + { + return res; + } + + if(!VmaValidateMagicValue(pData, allocOffset - VMA_DEBUG_MARGIN)) + { + VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED BEFORE FREED ALLOCATION!"); + } + else if(!VmaValidateMagicValue(pData, allocOffset + allocSize)) + { + VMA_ASSERT(0 && "MEMORY CORRUPTION DETECTED AFTER FREED ALLOCATION!"); + } + + Unmap(hAllocator, 1); + + return VK_SUCCESS; +} + VkResult VmaDeviceMemoryBlock::BindBufferMemory( const VmaAllocator hAllocator, const VmaAllocation hAllocation, - VkBuffer hBuffer) + VkDeviceSize allocationLocalOffset, + VkBuffer hBuffer, + const void* pNext) { VMA_ASSERT(hAllocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK && hAllocation->GetBlock() == this); + VMA_ASSERT(allocationLocalOffset < hAllocation->GetSize() && + "Invalid allocationLocalOffset. Did you forget that this offset is relative to the beginning of the allocation, not the whole memory block?"); + const VkDeviceSize memoryOffset = hAllocation->GetOffset() + allocationLocalOffset; // This lock is important so that we don't call vkBind... and/or vkMap... simultaneously on the same VkDeviceMemory from multiple threads. VmaMutexLock lock(m_Mutex, hAllocator->m_UseMutex); - return hAllocator->GetVulkanFunctions().vkBindBufferMemory( - hAllocator->m_hDevice, - hBuffer, - m_hMemory, - hAllocation->GetOffset()); + return hAllocator->BindVulkanBuffer(m_hMemory, memoryOffset, hBuffer, pNext); } VkResult VmaDeviceMemoryBlock::BindImageMemory( const VmaAllocator hAllocator, const VmaAllocation hAllocation, - VkImage hImage) + VkDeviceSize allocationLocalOffset, + VkImage hImage, + const void* pNext) { VMA_ASSERT(hAllocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK && hAllocation->GetBlock() == this); + VMA_ASSERT(allocationLocalOffset < hAllocation->GetSize() && + "Invalid allocationLocalOffset. Did you forget that this offset is relative to the beginning of the allocation, not the whole memory block?"); + const VkDeviceSize memoryOffset = hAllocation->GetOffset() + allocationLocalOffset; // This lock is important so that we don't call vkBind... and/or vkMap... simultaneously on the same VkDeviceMemory from multiple threads. VmaMutexLock lock(m_Mutex, hAllocator->m_UseMutex); - return hAllocator->GetVulkanFunctions().vkBindImageMemory( - hAllocator->m_hDevice, - hImage, - m_hMemory, - hAllocation->GetOffset()); + return hAllocator->BindVulkanImage(m_hMemory, memoryOffset, hImage, pNext); } static void InitStatInfo(VmaStatInfo& outInfo) @@ -6433,21 +11031,45 @@ static void VmaPostprocessCalcStatInfo(VmaStatInfo& inoutInfo) VmaPool_T::VmaPool_T( VmaAllocator hAllocator, - const VmaPoolCreateInfo& createInfo) : + const VmaPoolCreateInfo& createInfo, + VkDeviceSize preferredBlockSize) : m_BlockVector( hAllocator, + this, // hParentPool createInfo.memoryTypeIndex, - createInfo.blockSize, + createInfo.blockSize != 0 ? createInfo.blockSize : preferredBlockSize, createInfo.minBlockCount, createInfo.maxBlockCount, (createInfo.flags & VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT) != 0 ? 1 : hAllocator->GetBufferImageGranularity(), createInfo.frameInUseCount, - true) // isCustomPool + createInfo.blockSize != 0, // explicitBlockSize + createInfo.flags & VMA_POOL_CREATE_ALGORITHM_MASK, // algorithm + createInfo.priority, + VMA_MAX(hAllocator->GetMemoryTypeMinAlignment(createInfo.memoryTypeIndex), createInfo.minAllocationAlignment), + createInfo.pMemoryAllocateNext), + m_Id(0), + m_Name(VMA_NULL) { } VmaPool_T::~VmaPool_T() { + VMA_ASSERT(m_PrevPool == VMA_NULL && m_NextPool == VMA_NULL); +} + +void VmaPool_T::SetName(const char* pName) +{ + const VkAllocationCallbacks* allocs = m_BlockVector.GetAllocator()->GetAllocationCallbacks(); + VmaFreeString(allocs, m_Name); + + if(pName != VMA_NULL) + { + m_Name = VmaCreateStringCopy(allocs, pName); + } + else + { + m_Name = VMA_NULL; + } } #if VMA_STATS_STRING_ENABLED @@ -6456,31 +11078,39 @@ VmaPool_T::~VmaPool_T() VmaBlockVector::VmaBlockVector( VmaAllocator hAllocator, + VmaPool hParentPool, uint32_t memoryTypeIndex, VkDeviceSize preferredBlockSize, size_t minBlockCount, size_t maxBlockCount, VkDeviceSize bufferImageGranularity, uint32_t frameInUseCount, - bool isCustomPool) : + bool explicitBlockSize, + uint32_t algorithm, + float priority, + VkDeviceSize minAllocationAlignment, + void* pMemoryAllocateNext) : m_hAllocator(hAllocator), + m_hParentPool(hParentPool), m_MemoryTypeIndex(memoryTypeIndex), m_PreferredBlockSize(preferredBlockSize), m_MinBlockCount(minBlockCount), m_MaxBlockCount(maxBlockCount), m_BufferImageGranularity(bufferImageGranularity), m_FrameInUseCount(frameInUseCount), - m_IsCustomPool(isCustomPool), - m_Blocks(VmaStlAllocator(hAllocator->GetAllocationCallbacks())), + m_ExplicitBlockSize(explicitBlockSize), + m_Algorithm(algorithm), + m_Priority(priority), + m_MinAllocationAlignment(minAllocationAlignment), + m_pMemoryAllocateNext(pMemoryAllocateNext), m_HasEmptyBlock(false), - m_pDefragmentator(VMA_NULL) + m_Blocks(VmaStlAllocator(hAllocator->GetAllocationCallbacks())), + m_NextBlockId(0) { } VmaBlockVector::~VmaBlockVector() { - VMA_ASSERT(m_pDefragmentator == VMA_NULL); - for(size_t i = m_Blocks.size(); i--; ) { m_Blocks[i]->Destroy(m_hAllocator); @@ -6503,181 +11133,325 @@ VkResult VmaBlockVector::CreateMinBlocks() void VmaBlockVector::GetPoolStats(VmaPoolStats* pStats) { + VmaMutexLockRead lock(m_Mutex, m_hAllocator->m_UseMutex); + + const size_t blockCount = m_Blocks.size(); + pStats->size = 0; pStats->unusedSize = 0; pStats->allocationCount = 0; pStats->unusedRangeCount = 0; pStats->unusedRangeSizeMax = 0; + pStats->blockCount = blockCount; - VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex); - - for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex) + for(uint32_t blockIndex = 0; blockIndex < blockCount; ++blockIndex) { const VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex]; VMA_ASSERT(pBlock); VMA_HEAVY_ASSERT(pBlock->Validate()); - pBlock->m_Metadata.AddPoolStats(*pStats); + pBlock->m_pMetadata->AddPoolStats(*pStats); } } +bool VmaBlockVector::IsEmpty() +{ + VmaMutexLockRead lock(m_Mutex, m_hAllocator->m_UseMutex); + return m_Blocks.empty(); +} + +bool VmaBlockVector::IsCorruptionDetectionEnabled() const +{ + const uint32_t requiredMemFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT; + return (VMA_DEBUG_DETECT_CORRUPTION != 0) && + (VMA_DEBUG_MARGIN > 0) && + (m_Algorithm == 0 || m_Algorithm == VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT) && + (m_hAllocator->m_MemProps.memoryTypes[m_MemoryTypeIndex].propertyFlags & requiredMemFlags) == requiredMemFlags; +} + static const uint32_t VMA_ALLOCATION_TRY_COUNT = 32; VkResult VmaBlockVector::Allocate( - VmaPool hCurrentPool, uint32_t currentFrameIndex, - const VkMemoryRequirements& vkMemReq, + VkDeviceSize size, + VkDeviceSize alignment, + const VmaAllocationCreateInfo& createInfo, + VmaSuballocationType suballocType, + size_t allocationCount, + VmaAllocation* pAllocations) +{ + size_t allocIndex; + VkResult res = VK_SUCCESS; + + alignment = VMA_MAX(alignment, m_MinAllocationAlignment); + + if(IsCorruptionDetectionEnabled()) + { + size = VmaAlignUp(size, sizeof(VMA_CORRUPTION_DETECTION_MAGIC_VALUE)); + alignment = VmaAlignUp(alignment, sizeof(VMA_CORRUPTION_DETECTION_MAGIC_VALUE)); + } + + { + VmaMutexLockWrite lock(m_Mutex, m_hAllocator->m_UseMutex); + for(allocIndex = 0; allocIndex < allocationCount; ++allocIndex) + { + res = AllocatePage( + currentFrameIndex, + size, + alignment, + createInfo, + suballocType, + pAllocations + allocIndex); + if(res != VK_SUCCESS) + { + break; + } + } + } + + if(res != VK_SUCCESS) + { + // Free all already created allocations. + const uint32_t heapIndex = m_hAllocator->MemoryTypeIndexToHeapIndex(m_MemoryTypeIndex); + while(allocIndex--) + { + VmaAllocation_T* const alloc = pAllocations[allocIndex]; + const VkDeviceSize allocSize = alloc->GetSize(); + Free(alloc); + m_hAllocator->m_Budget.RemoveAllocation(heapIndex, allocSize); + } + memset(pAllocations, 0, sizeof(VmaAllocation) * allocationCount); + } + + return res; +} + +VkResult VmaBlockVector::AllocatePage( + uint32_t currentFrameIndex, + VkDeviceSize size, + VkDeviceSize alignment, const VmaAllocationCreateInfo& createInfo, VmaSuballocationType suballocType, VmaAllocation* pAllocation) { + const bool isUpperAddress = (createInfo.flags & VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT) != 0; + bool canMakeOtherLost = (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT) != 0; const bool mapped = (createInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0; const bool isUserDataString = (createInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0; - VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex); - - // 1. Search existing allocations. Try to allocate without making other allocations lost. - // Forward order in m_Blocks - prefer blocks with smallest amount of free space. - for(size_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex ) + VkDeviceSize freeMemory; { - VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex]; - VMA_ASSERT(pCurrBlock); - VmaAllocationRequest currRequest = {}; - if(pCurrBlock->m_Metadata.CreateAllocationRequest( - currentFrameIndex, - m_FrameInUseCount, - m_BufferImageGranularity, - vkMemReq.size, - vkMemReq.alignment, - suballocType, - false, // canMakeOtherLost - &currRequest)) - { - // Allocate from pCurrBlock. - VMA_ASSERT(currRequest.itemsToMakeLostCount == 0); - - if(mapped) - { - VkResult res = pCurrBlock->Map(m_hAllocator, 1, VMA_NULL); - if(res != VK_SUCCESS) - { - return res; - } - } - - // We no longer have an empty Allocation. - if(pCurrBlock->m_Metadata.IsEmpty()) - { - m_HasEmptyBlock = false; - } - - *pAllocation = vma_new(m_hAllocator, VmaAllocation_T)(currentFrameIndex, isUserDataString); - pCurrBlock->m_Metadata.Alloc(currRequest, suballocType, vkMemReq.size, *pAllocation); - (*pAllocation)->InitBlockAllocation( - hCurrentPool, - pCurrBlock, - currRequest.offset, - vkMemReq.alignment, - vkMemReq.size, - suballocType, - mapped, - (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT) != 0); - VMA_HEAVY_ASSERT(pCurrBlock->Validate()); - VMA_DEBUG_LOG(" Returned from existing allocation #%u", (uint32_t)blockIndex); - (*pAllocation)->SetUserData(m_hAllocator, createInfo.pUserData); - return VK_SUCCESS; - } + const uint32_t heapIndex = m_hAllocator->MemoryTypeIndexToHeapIndex(m_MemoryTypeIndex); + VmaBudget heapBudget = {}; + m_hAllocator->GetBudget(&heapBudget, heapIndex, 1); + freeMemory = (heapBudget.usage < heapBudget.budget) ? (heapBudget.budget - heapBudget.usage) : 0; } + const bool canFallbackToDedicated = !IsCustomPool(); const bool canCreateNewBlock = ((createInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) == 0) && - (m_Blocks.size() < m_MaxBlockCount); + (m_Blocks.size() < m_MaxBlockCount) && + (freeMemory >= size || !canFallbackToDedicated); + uint32_t strategy = createInfo.flags & VMA_ALLOCATION_CREATE_STRATEGY_MASK; - // 2. Try to create new block. - if(canCreateNewBlock) + // If linearAlgorithm is used, canMakeOtherLost is available only when used as ring buffer. + // Which in turn is available only when maxBlockCount = 1. + if(m_Algorithm == VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT && m_MaxBlockCount > 1) { - // Calculate optimal size for new block. - VkDeviceSize newBlockSize = m_PreferredBlockSize; - uint32_t newBlockSizeShift = 0; - const uint32_t NEW_BLOCK_SIZE_SHIFT_MAX = 3; - - // Allocating blocks of other sizes is allowed only in default pools. - // In custom pools block size is fixed. - if(m_IsCustomPool == false) - { - // Allocate 1/8, 1/4, 1/2 as first blocks. - const VkDeviceSize maxExistingBlockSize = CalcMaxBlockSize(); - for(uint32_t i = 0; i < NEW_BLOCK_SIZE_SHIFT_MAX; ++i) - { - const VkDeviceSize smallerNewBlockSize = newBlockSize / 2; - if(smallerNewBlockSize > maxExistingBlockSize && smallerNewBlockSize >= vkMemReq.size * 2) - { - newBlockSize = smallerNewBlockSize; - ++newBlockSizeShift; - } - else - { - break; - } - } - } - - size_t newBlockIndex = 0; - VkResult res = CreateBlock(newBlockSize, &newBlockIndex); - // Allocation of this size failed? Try 1/2, 1/4, 1/8 of m_PreferredBlockSize. - if(m_IsCustomPool == false) - { - while(res < 0 && newBlockSizeShift < NEW_BLOCK_SIZE_SHIFT_MAX) - { - const VkDeviceSize smallerNewBlockSize = newBlockSize / 2; - if(smallerNewBlockSize >= vkMemReq.size) - { - newBlockSize = smallerNewBlockSize; - ++newBlockSizeShift; - res = CreateBlock(newBlockSize, &newBlockIndex); - } - else - { - break; - } - } - } - - if(res == VK_SUCCESS) - { - VmaDeviceMemoryBlock* const pBlock = m_Blocks[newBlockIndex]; - VMA_ASSERT(pBlock->m_Metadata.GetSize() >= vkMemReq.size); - - if(mapped) - { - res = pBlock->Map(m_hAllocator, 1, VMA_NULL); - if(res != VK_SUCCESS) - { - return res; - } - } - - // Allocate from pBlock. Because it is empty, dstAllocRequest can be trivially filled. - VmaAllocationRequest allocRequest; - pBlock->m_Metadata.CreateFirstAllocationRequest(&allocRequest); - *pAllocation = vma_new(m_hAllocator, VmaAllocation_T)(currentFrameIndex, isUserDataString); - pBlock->m_Metadata.Alloc(allocRequest, suballocType, vkMemReq.size, *pAllocation); - (*pAllocation)->InitBlockAllocation( - hCurrentPool, - pBlock, - allocRequest.offset, - vkMemReq.alignment, - vkMemReq.size, - suballocType, - mapped, - (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT) != 0); - VMA_HEAVY_ASSERT(pBlock->Validate()); - VMA_DEBUG_LOG(" Created new allocation Size=%llu", allocInfo.allocationSize); - (*pAllocation)->SetUserData(m_hAllocator, createInfo.pUserData); - return VK_SUCCESS; - } + canMakeOtherLost = false; } - const bool canMakeOtherLost = (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT) != 0; + // Upper address can only be used with linear allocator and within single memory block. + if(isUpperAddress && + (m_Algorithm != VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT || m_MaxBlockCount > 1)) + { + return VK_ERROR_FEATURE_NOT_PRESENT; + } + + // Validate strategy. + switch(strategy) + { + case 0: + strategy = VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT; + break; + case VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT: + case VMA_ALLOCATION_CREATE_STRATEGY_WORST_FIT_BIT: + case VMA_ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT: + break; + default: + return VK_ERROR_FEATURE_NOT_PRESENT; + } + + // Early reject: requested allocation size is larger that maximum block size for this block vector. + if(size + 2 * VMA_DEBUG_MARGIN > m_PreferredBlockSize) + { + return VK_ERROR_OUT_OF_DEVICE_MEMORY; + } + + /* + Under certain condition, this whole section can be skipped for optimization, so + we move on directly to trying to allocate with canMakeOtherLost. That is the case + e.g. for custom pools with linear algorithm. + */ + if(!canMakeOtherLost || canCreateNewBlock) + { + // 1. Search existing allocations. Try to allocate without making other allocations lost. + VmaAllocationCreateFlags allocFlagsCopy = createInfo.flags; + allocFlagsCopy &= ~VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT; + + if(m_Algorithm == VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT) + { + // Use only last block. + if(!m_Blocks.empty()) + { + VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks.back(); + VMA_ASSERT(pCurrBlock); + VkResult res = AllocateFromBlock( + pCurrBlock, + currentFrameIndex, + size, + alignment, + allocFlagsCopy, + createInfo.pUserData, + suballocType, + strategy, + pAllocation); + if(res == VK_SUCCESS) + { + VMA_DEBUG_LOG(" Returned from last block #%u", pCurrBlock->GetId()); + return VK_SUCCESS; + } + } + } + else + { + if(strategy == VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT) + { + // Forward order in m_Blocks - prefer blocks with smallest amount of free space. + for(size_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex ) + { + VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex]; + VMA_ASSERT(pCurrBlock); + VkResult res = AllocateFromBlock( + pCurrBlock, + currentFrameIndex, + size, + alignment, + allocFlagsCopy, + createInfo.pUserData, + suballocType, + strategy, + pAllocation); + if(res == VK_SUCCESS) + { + VMA_DEBUG_LOG(" Returned from existing block #%u", pCurrBlock->GetId()); + return VK_SUCCESS; + } + } + } + else // WORST_FIT, FIRST_FIT + { + // Backward order in m_Blocks - prefer blocks with largest amount of free space. + for(size_t blockIndex = m_Blocks.size(); blockIndex--; ) + { + VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex]; + VMA_ASSERT(pCurrBlock); + VkResult res = AllocateFromBlock( + pCurrBlock, + currentFrameIndex, + size, + alignment, + allocFlagsCopy, + createInfo.pUserData, + suballocType, + strategy, + pAllocation); + if(res == VK_SUCCESS) + { + VMA_DEBUG_LOG(" Returned from existing block #%u", pCurrBlock->GetId()); + return VK_SUCCESS; + } + } + } + } + + // 2. Try to create new block. + if(canCreateNewBlock) + { + // Calculate optimal size for new block. + VkDeviceSize newBlockSize = m_PreferredBlockSize; + uint32_t newBlockSizeShift = 0; + const uint32_t NEW_BLOCK_SIZE_SHIFT_MAX = 3; + + if(!m_ExplicitBlockSize) + { + // Allocate 1/8, 1/4, 1/2 as first blocks. + const VkDeviceSize maxExistingBlockSize = CalcMaxBlockSize(); + for(uint32_t i = 0; i < NEW_BLOCK_SIZE_SHIFT_MAX; ++i) + { + const VkDeviceSize smallerNewBlockSize = newBlockSize / 2; + if(smallerNewBlockSize > maxExistingBlockSize && smallerNewBlockSize >= size * 2) + { + newBlockSize = smallerNewBlockSize; + ++newBlockSizeShift; + } + else + { + break; + } + } + } + + size_t newBlockIndex = 0; + VkResult res = (newBlockSize <= freeMemory || !canFallbackToDedicated) ? + CreateBlock(newBlockSize, &newBlockIndex) : VK_ERROR_OUT_OF_DEVICE_MEMORY; + // Allocation of this size failed? Try 1/2, 1/4, 1/8 of m_PreferredBlockSize. + if(!m_ExplicitBlockSize) + { + while(res < 0 && newBlockSizeShift < NEW_BLOCK_SIZE_SHIFT_MAX) + { + const VkDeviceSize smallerNewBlockSize = newBlockSize / 2; + if(smallerNewBlockSize >= size) + { + newBlockSize = smallerNewBlockSize; + ++newBlockSizeShift; + res = (newBlockSize <= freeMemory || !canFallbackToDedicated) ? + CreateBlock(newBlockSize, &newBlockIndex) : VK_ERROR_OUT_OF_DEVICE_MEMORY; + } + else + { + break; + } + } + } + + if(res == VK_SUCCESS) + { + VmaDeviceMemoryBlock* const pBlock = m_Blocks[newBlockIndex]; + VMA_ASSERT(pBlock->m_pMetadata->GetSize() >= size); + + res = AllocateFromBlock( + pBlock, + currentFrameIndex, + size, + alignment, + allocFlagsCopy, + createInfo.pUserData, + suballocType, + strategy, + pAllocation); + if(res == VK_SUCCESS) + { + VMA_DEBUG_LOG(" Created new block #%u Size=%llu", pBlock->GetId(), newBlockSize); + return VK_SUCCESS; + } + else + { + // Allocation from new block failed, possibly due to VMA_DEBUG_MARGIN or alignment. + return VK_ERROR_OUT_OF_DEVICE_MEMORY; + } + } + } + } // 3. Try to allocate from existing blocks with making other allocations lost. if(canMakeOtherLost) @@ -6690,33 +11464,76 @@ VkResult VmaBlockVector::Allocate( VkDeviceSize bestRequestCost = VK_WHOLE_SIZE; // 1. Search existing allocations. - // Forward order in m_Blocks - prefer blocks with smallest amount of free space. - for(size_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex ) + if(strategy == VMA_ALLOCATION_CREATE_STRATEGY_BEST_FIT_BIT) { - VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex]; - VMA_ASSERT(pCurrBlock); - VmaAllocationRequest currRequest = {}; - if(pCurrBlock->m_Metadata.CreateAllocationRequest( - currentFrameIndex, - m_FrameInUseCount, - m_BufferImageGranularity, - vkMemReq.size, - vkMemReq.alignment, - suballocType, - canMakeOtherLost, - &currRequest)) + // Forward order in m_Blocks - prefer blocks with smallest amount of free space. + for(size_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex ) { - const VkDeviceSize currRequestCost = currRequest.CalcCost(); - if(pBestRequestBlock == VMA_NULL || - currRequestCost < bestRequestCost) + VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex]; + VMA_ASSERT(pCurrBlock); + VmaAllocationRequest currRequest = {}; + if(pCurrBlock->m_pMetadata->CreateAllocationRequest( + currentFrameIndex, + m_FrameInUseCount, + m_BufferImageGranularity, + size, + alignment, + (createInfo.flags & VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT) != 0, + suballocType, + canMakeOtherLost, + strategy, + &currRequest)) { - pBestRequestBlock = pCurrBlock; - bestRequest = currRequest; - bestRequestCost = currRequestCost; - - if(bestRequestCost == 0) + const VkDeviceSize currRequestCost = currRequest.CalcCost(); + if(pBestRequestBlock == VMA_NULL || + currRequestCost < bestRequestCost) { - break; + pBestRequestBlock = pCurrBlock; + bestRequest = currRequest; + bestRequestCost = currRequestCost; + + if(bestRequestCost == 0) + { + break; + } + } + } + } + } + else // WORST_FIT, FIRST_FIT + { + // Backward order in m_Blocks - prefer blocks with largest amount of free space. + for(size_t blockIndex = m_Blocks.size(); blockIndex--; ) + { + VmaDeviceMemoryBlock* const pCurrBlock = m_Blocks[blockIndex]; + VMA_ASSERT(pCurrBlock); + VmaAllocationRequest currRequest = {}; + if(pCurrBlock->m_pMetadata->CreateAllocationRequest( + currentFrameIndex, + m_FrameInUseCount, + m_BufferImageGranularity, + size, + alignment, + (createInfo.flags & VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT) != 0, + suballocType, + canMakeOtherLost, + strategy, + &currRequest)) + { + const VkDeviceSize currRequestCost = currRequest.CalcCost(); + if(pBestRequestBlock == VMA_NULL || + currRequestCost < bestRequestCost || + strategy == VMA_ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT) + { + pBestRequestBlock = pCurrBlock; + bestRequest = currRequest; + bestRequestCost = currRequestCost; + + if(bestRequestCost == 0 || + strategy == VMA_ALLOCATION_CREATE_STRATEGY_FIRST_FIT_BIT) + { + break; + } } } } @@ -6733,31 +11550,37 @@ VkResult VmaBlockVector::Allocate( } } - if(pBestRequestBlock->m_Metadata.MakeRequestedAllocationsLost( + if(pBestRequestBlock->m_pMetadata->MakeRequestedAllocationsLost( currentFrameIndex, m_FrameInUseCount, &bestRequest)) { - // We no longer have an empty Allocation. - if(pBestRequestBlock->m_Metadata.IsEmpty()) - { - m_HasEmptyBlock = false; - } // Allocate from this pBlock. - *pAllocation = vma_new(m_hAllocator, VmaAllocation_T)(currentFrameIndex, isUserDataString); - pBestRequestBlock->m_Metadata.Alloc(bestRequest, suballocType, vkMemReq.size, *pAllocation); + *pAllocation = m_hAllocator->m_AllocationObjectAllocator.Allocate(currentFrameIndex, isUserDataString); + pBestRequestBlock->m_pMetadata->Alloc(bestRequest, suballocType, size, *pAllocation); + UpdateHasEmptyBlock(); (*pAllocation)->InitBlockAllocation( - hCurrentPool, pBestRequestBlock, bestRequest.offset, - vkMemReq.alignment, - vkMemReq.size, + alignment, + size, + m_MemoryTypeIndex, suballocType, mapped, (createInfo.flags & VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT) != 0); VMA_HEAVY_ASSERT(pBestRequestBlock->Validate()); - VMA_DEBUG_LOG(" Returned from existing allocation #%u", (uint32_t)blockIndex); + VMA_DEBUG_LOG(" Returned from existing block #%u", pBestRequestBlock->GetId()); (*pAllocation)->SetUserData(m_hAllocator, createInfo.pUserData); + m_hAllocator->m_Budget.AddAllocation(m_hAllocator->MemoryTypeIndexToHeapIndex(m_MemoryTypeIndex), size); + if(VMA_DEBUG_INITIALIZE_ALLOCATIONS) + { + m_hAllocator->FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED); + } + if(IsCorruptionDetectionEnabled()) + { + VkResult res = pBestRequestBlock->WriteMagicValueAroundAllocation(m_hAllocator, bestRequest.offset, size); + VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to write magic value."); + } return VK_SUCCESS; } // else: Some allocations must have been touched while we are here. Next try. @@ -6781,73 +11604,84 @@ VkResult VmaBlockVector::Allocate( } void VmaBlockVector::Free( - VmaAllocation hAllocation) + const VmaAllocation hAllocation) { VmaDeviceMemoryBlock* pBlockToDelete = VMA_NULL; + bool budgetExceeded = false; + { + const uint32_t heapIndex = m_hAllocator->MemoryTypeIndexToHeapIndex(m_MemoryTypeIndex); + VmaBudget heapBudget = {}; + m_hAllocator->GetBudget(&heapBudget, heapIndex, 1); + budgetExceeded = heapBudget.usage >= heapBudget.budget; + } + // Scope for lock. { - VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex); + VmaMutexLockWrite lock(m_Mutex, m_hAllocator->m_UseMutex); VmaDeviceMemoryBlock* pBlock = hAllocation->GetBlock(); + if(IsCorruptionDetectionEnabled()) + { + VkResult res = pBlock->ValidateMagicValueAroundAllocation(m_hAllocator, hAllocation->GetOffset(), hAllocation->GetSize()); + VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to validate magic value."); + } + if(hAllocation->IsPersistentMap()) { pBlock->Unmap(m_hAllocator, 1); } - pBlock->m_Metadata.Free(hAllocation); + pBlock->m_pMetadata->Free(hAllocation); VMA_HEAVY_ASSERT(pBlock->Validate()); - VMA_DEBUG_LOG(" Freed from MemoryTypeIndex=%u", memTypeIndex); + VMA_DEBUG_LOG(" Freed from MemoryTypeIndex=%u", m_MemoryTypeIndex); + const bool canDeleteBlock = m_Blocks.size() > m_MinBlockCount; // pBlock became empty after this deallocation. - if(pBlock->m_Metadata.IsEmpty()) + if(pBlock->m_pMetadata->IsEmpty()) { - // Already has empty Allocation. We don't want to have two, so delete this one. - if(m_HasEmptyBlock && m_Blocks.size() > m_MinBlockCount) + // Already has empty block. We don't want to have two, so delete this one. + if((m_HasEmptyBlock || budgetExceeded) && canDeleteBlock) { pBlockToDelete = pBlock; Remove(pBlock); } - // We now have first empty Allocation. - else - { - m_HasEmptyBlock = true; - } + // else: We now have an empty block - leave it. } // pBlock didn't become empty, but we have another empty block - find and free that one. // (This is optional, heuristics.) - else if(m_HasEmptyBlock) + else if(m_HasEmptyBlock && canDeleteBlock) { VmaDeviceMemoryBlock* pLastBlock = m_Blocks.back(); - if(pLastBlock->m_Metadata.IsEmpty() && m_Blocks.size() > m_MinBlockCount) + if(pLastBlock->m_pMetadata->IsEmpty()) { pBlockToDelete = pLastBlock; m_Blocks.pop_back(); - m_HasEmptyBlock = false; } } + UpdateHasEmptyBlock(); IncrementallySortBlocks(); } - // Destruction of a free Allocation. Deferred until this point, outside of mutex + // Destruction of a free block. Deferred until this point, outside of mutex // lock, for performance reason. if(pBlockToDelete != VMA_NULL) { - VMA_DEBUG_LOG(" Deleted empty allocation"); + VMA_DEBUG_LOG(" Deleted empty block #%u", pBlockToDelete->GetId()); pBlockToDelete->Destroy(m_hAllocator); vma_delete(m_hAllocator, pBlockToDelete); } } -size_t VmaBlockVector::CalcMaxBlockSize() const +VkDeviceSize VmaBlockVector::CalcMaxBlockSize() const { - size_t result = 0; + VkDeviceSize result = 0; for(size_t i = m_Blocks.size(); i--; ) { - result = VMA_MAX((uint64_t)result, (uint64_t)m_Blocks[i]->m_Metadata.GetSize()); + result = VMA_MAX(result, m_Blocks[i]->m_pMetadata->GetSize()); if(result >= m_PreferredBlockSize) { break; @@ -6871,22 +11705,126 @@ void VmaBlockVector::Remove(VmaDeviceMemoryBlock* pBlock) void VmaBlockVector::IncrementallySortBlocks() { - // Bubble sort only until first swap. - for(size_t i = 1; i < m_Blocks.size(); ++i) + if(m_Algorithm != VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT) { - if(m_Blocks[i - 1]->m_Metadata.GetSumFreeSize() > m_Blocks[i]->m_Metadata.GetSumFreeSize()) + // Bubble sort only until first swap. + for(size_t i = 1; i < m_Blocks.size(); ++i) { - VMA_SWAP(m_Blocks[i - 1], m_Blocks[i]); - return; + if(m_Blocks[i - 1]->m_pMetadata->GetSumFreeSize() > m_Blocks[i]->m_pMetadata->GetSumFreeSize()) + { + VMA_SWAP(m_Blocks[i - 1], m_Blocks[i]); + return; + } } } } +VkResult VmaBlockVector::AllocateFromBlock( + VmaDeviceMemoryBlock* pBlock, + uint32_t currentFrameIndex, + VkDeviceSize size, + VkDeviceSize alignment, + VmaAllocationCreateFlags allocFlags, + void* pUserData, + VmaSuballocationType suballocType, + uint32_t strategy, + VmaAllocation* pAllocation) +{ + VMA_ASSERT((allocFlags & VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT) == 0); + const bool isUpperAddress = (allocFlags & VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT) != 0; + const bool mapped = (allocFlags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0; + const bool isUserDataString = (allocFlags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0; + + VmaAllocationRequest currRequest = {}; + if(pBlock->m_pMetadata->CreateAllocationRequest( + currentFrameIndex, + m_FrameInUseCount, + m_BufferImageGranularity, + size, + alignment, + isUpperAddress, + suballocType, + false, // canMakeOtherLost + strategy, + &currRequest)) + { + // Allocate from pCurrBlock. + VMA_ASSERT(currRequest.itemsToMakeLostCount == 0); + + if(mapped) + { + VkResult res = pBlock->Map(m_hAllocator, 1, VMA_NULL); + if(res != VK_SUCCESS) + { + return res; + } + } + + *pAllocation = m_hAllocator->m_AllocationObjectAllocator.Allocate(currentFrameIndex, isUserDataString); + pBlock->m_pMetadata->Alloc(currRequest, suballocType, size, *pAllocation); + UpdateHasEmptyBlock(); + (*pAllocation)->InitBlockAllocation( + pBlock, + currRequest.offset, + alignment, + size, + m_MemoryTypeIndex, + suballocType, + mapped, + (allocFlags & VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT) != 0); + VMA_HEAVY_ASSERT(pBlock->Validate()); + (*pAllocation)->SetUserData(m_hAllocator, pUserData); + m_hAllocator->m_Budget.AddAllocation(m_hAllocator->MemoryTypeIndexToHeapIndex(m_MemoryTypeIndex), size); + if(VMA_DEBUG_INITIALIZE_ALLOCATIONS) + { + m_hAllocator->FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED); + } + if(IsCorruptionDetectionEnabled()) + { + VkResult res = pBlock->WriteMagicValueAroundAllocation(m_hAllocator, currRequest.offset, size); + VMA_ASSERT(res == VK_SUCCESS && "Couldn't map block memory to write magic value."); + } + return VK_SUCCESS; + } + return VK_ERROR_OUT_OF_DEVICE_MEMORY; +} + VkResult VmaBlockVector::CreateBlock(VkDeviceSize blockSize, size_t* pNewBlockIndex) { VkMemoryAllocateInfo allocInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO }; + allocInfo.pNext = m_pMemoryAllocateNext; allocInfo.memoryTypeIndex = m_MemoryTypeIndex; allocInfo.allocationSize = blockSize; + +#if VMA_BUFFER_DEVICE_ADDRESS + // Every standalone block can potentially contain a buffer with VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT - always enable the feature. + VkMemoryAllocateFlagsInfoKHR allocFlagsInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_FLAGS_INFO_KHR }; + if(m_hAllocator->m_UseKhrBufferDeviceAddress) + { + allocFlagsInfo.flags = VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT_KHR; + VmaPnextChainPushFront(&allocInfo, &allocFlagsInfo); + } +#endif // #if VMA_BUFFER_DEVICE_ADDRESS + +#if VMA_MEMORY_PRIORITY + VkMemoryPriorityAllocateInfoEXT priorityInfo = { VK_STRUCTURE_TYPE_MEMORY_PRIORITY_ALLOCATE_INFO_EXT }; + if(m_hAllocator->m_UseExtMemoryPriority) + { + priorityInfo.priority = m_Priority; + VmaPnextChainPushFront(&allocInfo, &priorityInfo); + } +#endif // #if VMA_MEMORY_PRIORITY + +#if VMA_EXTERNAL_MEMORY + // Attach VkExportMemoryAllocateInfoKHR if necessary. + VkExportMemoryAllocateInfoKHR exportMemoryAllocInfo = { VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO_KHR }; + exportMemoryAllocInfo.handleTypes = m_hAllocator->GetExternalMemoryHandleTypeFlags(m_MemoryTypeIndex); + if(exportMemoryAllocInfo.handleTypes != 0) + { + VmaPnextChainPushFront(&allocInfo, &exportMemoryAllocInfo); + } +#endif // #if VMA_EXTERNAL_MEMORY + VkDeviceMemory mem = VK_NULL_HANDLE; VkResult res = m_hAllocator->AllocateVulkanMemory(&allocInfo, &mem); if(res < 0) @@ -6899,9 +11837,13 @@ VkResult VmaBlockVector::CreateBlock(VkDeviceSize blockSize, size_t* pNewBlockIn // Create new Allocation for it. VmaDeviceMemoryBlock* const pBlock = vma_new(m_hAllocator, VmaDeviceMemoryBlock)(m_hAllocator); pBlock->Init( + m_hAllocator, + m_hParentPool, m_MemoryTypeIndex, mem, - allocInfo.allocationSize); + allocInfo.allocationSize, + m_NextBlockId++, + m_Algorithm); m_Blocks.push_back(pBlock); if(pNewBlockIndex != VMA_NULL) @@ -6912,16 +11854,261 @@ VkResult VmaBlockVector::CreateBlock(VkDeviceSize blockSize, size_t* pNewBlockIn return VK_SUCCESS; } +void VmaBlockVector::ApplyDefragmentationMovesCpu( + class VmaBlockVectorDefragmentationContext* pDefragCtx, + const VmaVector< VmaDefragmentationMove, VmaStlAllocator >& moves) +{ + const size_t blockCount = m_Blocks.size(); + const bool isNonCoherent = m_hAllocator->IsMemoryTypeNonCoherent(m_MemoryTypeIndex); + + enum BLOCK_FLAG + { + BLOCK_FLAG_USED = 0x00000001, + BLOCK_FLAG_MAPPED_FOR_DEFRAGMENTATION = 0x00000002, + }; + + struct BlockInfo + { + uint32_t flags; + void* pMappedData; + }; + VmaVector< BlockInfo, VmaStlAllocator > + blockInfo(blockCount, BlockInfo(), VmaStlAllocator(m_hAllocator->GetAllocationCallbacks())); + memset(blockInfo.data(), 0, blockCount * sizeof(BlockInfo)); + + // Go over all moves. Mark blocks that are used with BLOCK_FLAG_USED. + const size_t moveCount = moves.size(); + for(size_t moveIndex = 0; moveIndex < moveCount; ++moveIndex) + { + const VmaDefragmentationMove& move = moves[moveIndex]; + blockInfo[move.srcBlockIndex].flags |= BLOCK_FLAG_USED; + blockInfo[move.dstBlockIndex].flags |= BLOCK_FLAG_USED; + } + + VMA_ASSERT(pDefragCtx->res == VK_SUCCESS); + + // Go over all blocks. Get mapped pointer or map if necessary. + for(size_t blockIndex = 0; pDefragCtx->res == VK_SUCCESS && blockIndex < blockCount; ++blockIndex) + { + BlockInfo& currBlockInfo = blockInfo[blockIndex]; + VmaDeviceMemoryBlock* pBlock = m_Blocks[blockIndex]; + if((currBlockInfo.flags & BLOCK_FLAG_USED) != 0) + { + currBlockInfo.pMappedData = pBlock->GetMappedData(); + // It is not originally mapped - map it. + if(currBlockInfo.pMappedData == VMA_NULL) + { + pDefragCtx->res = pBlock->Map(m_hAllocator, 1, &currBlockInfo.pMappedData); + if(pDefragCtx->res == VK_SUCCESS) + { + currBlockInfo.flags |= BLOCK_FLAG_MAPPED_FOR_DEFRAGMENTATION; + } + } + } + } + + // Go over all moves. Do actual data transfer. + if(pDefragCtx->res == VK_SUCCESS) + { + const VkDeviceSize nonCoherentAtomSize = m_hAllocator->m_PhysicalDeviceProperties.limits.nonCoherentAtomSize; + VkMappedMemoryRange memRange = { VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE }; + + for(size_t moveIndex = 0; moveIndex < moveCount; ++moveIndex) + { + const VmaDefragmentationMove& move = moves[moveIndex]; + + const BlockInfo& srcBlockInfo = blockInfo[move.srcBlockIndex]; + const BlockInfo& dstBlockInfo = blockInfo[move.dstBlockIndex]; + + VMA_ASSERT(srcBlockInfo.pMappedData && dstBlockInfo.pMappedData); + + // Invalidate source. + if(isNonCoherent) + { + VmaDeviceMemoryBlock* const pSrcBlock = m_Blocks[move.srcBlockIndex]; + memRange.memory = pSrcBlock->GetDeviceMemory(); + memRange.offset = VmaAlignDown(move.srcOffset, nonCoherentAtomSize); + memRange.size = VMA_MIN( + VmaAlignUp(move.size + (move.srcOffset - memRange.offset), nonCoherentAtomSize), + pSrcBlock->m_pMetadata->GetSize() - memRange.offset); + (*m_hAllocator->GetVulkanFunctions().vkInvalidateMappedMemoryRanges)(m_hAllocator->m_hDevice, 1, &memRange); + } + + // THE PLACE WHERE ACTUAL DATA COPY HAPPENS. + memmove( + reinterpret_cast(dstBlockInfo.pMappedData) + move.dstOffset, + reinterpret_cast(srcBlockInfo.pMappedData) + move.srcOffset, + static_cast(move.size)); + + if(IsCorruptionDetectionEnabled()) + { + VmaWriteMagicValue(dstBlockInfo.pMappedData, move.dstOffset - VMA_DEBUG_MARGIN); + VmaWriteMagicValue(dstBlockInfo.pMappedData, move.dstOffset + move.size); + } + + // Flush destination. + if(isNonCoherent) + { + VmaDeviceMemoryBlock* const pDstBlock = m_Blocks[move.dstBlockIndex]; + memRange.memory = pDstBlock->GetDeviceMemory(); + memRange.offset = VmaAlignDown(move.dstOffset, nonCoherentAtomSize); + memRange.size = VMA_MIN( + VmaAlignUp(move.size + (move.dstOffset - memRange.offset), nonCoherentAtomSize), + pDstBlock->m_pMetadata->GetSize() - memRange.offset); + (*m_hAllocator->GetVulkanFunctions().vkFlushMappedMemoryRanges)(m_hAllocator->m_hDevice, 1, &memRange); + } + } + } + + // Go over all blocks in reverse order. Unmap those that were mapped just for defragmentation. + // Regardless of pCtx->res == VK_SUCCESS. + for(size_t blockIndex = blockCount; blockIndex--; ) + { + const BlockInfo& currBlockInfo = blockInfo[blockIndex]; + if((currBlockInfo.flags & BLOCK_FLAG_MAPPED_FOR_DEFRAGMENTATION) != 0) + { + VmaDeviceMemoryBlock* pBlock = m_Blocks[blockIndex]; + pBlock->Unmap(m_hAllocator, 1); + } + } +} + +void VmaBlockVector::ApplyDefragmentationMovesGpu( + class VmaBlockVectorDefragmentationContext* pDefragCtx, + VmaVector< VmaDefragmentationMove, VmaStlAllocator >& moves, + VkCommandBuffer commandBuffer) +{ + const size_t blockCount = m_Blocks.size(); + + pDefragCtx->blockContexts.resize(blockCount); + memset(pDefragCtx->blockContexts.data(), 0, blockCount * sizeof(VmaBlockDefragmentationContext)); + + // Go over all moves. Mark blocks that are used with BLOCK_FLAG_USED. + const size_t moveCount = moves.size(); + for(size_t moveIndex = 0; moveIndex < moveCount; ++moveIndex) + { + const VmaDefragmentationMove& move = moves[moveIndex]; + + //if(move.type == VMA_ALLOCATION_TYPE_UNKNOWN) + { + // Old school move still require us to map the whole block + pDefragCtx->blockContexts[move.srcBlockIndex].flags |= VmaBlockDefragmentationContext::BLOCK_FLAG_USED; + pDefragCtx->blockContexts[move.dstBlockIndex].flags |= VmaBlockDefragmentationContext::BLOCK_FLAG_USED; + } + } + + VMA_ASSERT(pDefragCtx->res == VK_SUCCESS); + + // Go over all blocks. Create and bind buffer for whole block if necessary. + { + VkBufferCreateInfo bufCreateInfo; + VmaFillGpuDefragmentationBufferCreateInfo(bufCreateInfo); + + for(size_t blockIndex = 0; pDefragCtx->res == VK_SUCCESS && blockIndex < blockCount; ++blockIndex) + { + VmaBlockDefragmentationContext& currBlockCtx = pDefragCtx->blockContexts[blockIndex]; + VmaDeviceMemoryBlock* pBlock = m_Blocks[blockIndex]; + if((currBlockCtx.flags & VmaBlockDefragmentationContext::BLOCK_FLAG_USED) != 0) + { + bufCreateInfo.size = pBlock->m_pMetadata->GetSize(); + pDefragCtx->res = (*m_hAllocator->GetVulkanFunctions().vkCreateBuffer)( + m_hAllocator->m_hDevice, &bufCreateInfo, m_hAllocator->GetAllocationCallbacks(), &currBlockCtx.hBuffer); + if(pDefragCtx->res == VK_SUCCESS) + { + pDefragCtx->res = (*m_hAllocator->GetVulkanFunctions().vkBindBufferMemory)( + m_hAllocator->m_hDevice, currBlockCtx.hBuffer, pBlock->GetDeviceMemory(), 0); + } + } + } + } + + // Go over all moves. Post data transfer commands to command buffer. + if(pDefragCtx->res == VK_SUCCESS) + { + for(size_t moveIndex = 0; moveIndex < moveCount; ++moveIndex) + { + const VmaDefragmentationMove& move = moves[moveIndex]; + + const VmaBlockDefragmentationContext& srcBlockCtx = pDefragCtx->blockContexts[move.srcBlockIndex]; + const VmaBlockDefragmentationContext& dstBlockCtx = pDefragCtx->blockContexts[move.dstBlockIndex]; + + VMA_ASSERT(srcBlockCtx.hBuffer && dstBlockCtx.hBuffer); + + VkBufferCopy region = { + move.srcOffset, + move.dstOffset, + move.size }; + (*m_hAllocator->GetVulkanFunctions().vkCmdCopyBuffer)( + commandBuffer, srcBlockCtx.hBuffer, dstBlockCtx.hBuffer, 1, ®ion); + } + } + + // Save buffers to defrag context for later destruction. + if(pDefragCtx->res == VK_SUCCESS && moveCount > 0) + { + pDefragCtx->res = VK_NOT_READY; + } +} + +void VmaBlockVector::FreeEmptyBlocks(VmaDefragmentationStats* pDefragmentationStats) +{ + for(size_t blockIndex = m_Blocks.size(); blockIndex--; ) + { + VmaDeviceMemoryBlock* pBlock = m_Blocks[blockIndex]; + if(pBlock->m_pMetadata->IsEmpty()) + { + if(m_Blocks.size() > m_MinBlockCount) + { + if(pDefragmentationStats != VMA_NULL) + { + ++pDefragmentationStats->deviceMemoryBlocksFreed; + pDefragmentationStats->bytesFreed += pBlock->m_pMetadata->GetSize(); + } + + VmaVectorRemove(m_Blocks, blockIndex); + pBlock->Destroy(m_hAllocator); + vma_delete(m_hAllocator, pBlock); + } + else + { + break; + } + } + } + UpdateHasEmptyBlock(); +} + +void VmaBlockVector::UpdateHasEmptyBlock() +{ + m_HasEmptyBlock = false; + for(size_t index = 0, count = m_Blocks.size(); index < count; ++index) + { + VmaDeviceMemoryBlock* const pBlock = m_Blocks[index]; + if(pBlock->m_pMetadata->IsEmpty()) + { + m_HasEmptyBlock = true; + break; + } + } +} + #if VMA_STATS_STRING_ENABLED void VmaBlockVector::PrintDetailedMap(class VmaJsonWriter& json) { - VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex); + VmaMutexLockRead lock(m_Mutex, m_hAllocator->m_UseMutex); json.BeginObject(); - if(m_IsCustomPool) + if(IsCustomPool()) { + const char* poolName = m_hParentPool->GetName(); + if(poolName != VMA_NULL && poolName[0] != '\0') + { + json.WriteString("Name"); + json.WriteString(poolName); + } + json.WriteString("MemoryTypeIndex"); json.WriteNumber(m_MemoryTypeIndex); @@ -6949,6 +12136,12 @@ void VmaBlockVector::PrintDetailedMap(class VmaJsonWriter& json) json.WriteString("FrameInUseCount"); json.WriteNumber(m_FrameInUseCount); } + + if(m_Algorithm != 0) + { + json.WriteString("Algorithm"); + json.WriteString(VmaAlgorithmToStr(m_Algorithm)); + } } else { @@ -6957,110 +12150,254 @@ void VmaBlockVector::PrintDetailedMap(class VmaJsonWriter& json) } json.WriteString("Blocks"); - json.BeginArray(); + json.BeginObject(); for(size_t i = 0; i < m_Blocks.size(); ++i) { - m_Blocks[i]->m_Metadata.PrintDetailedMap(json); + json.BeginString(); + json.ContinueString(m_Blocks[i]->GetId()); + json.EndString(); + + m_Blocks[i]->m_pMetadata->PrintDetailedMap(json); } - json.EndArray(); + json.EndObject(); json.EndObject(); } #endif // #if VMA_STATS_STRING_ENABLED -VmaDefragmentator* VmaBlockVector::EnsureDefragmentator( - VmaAllocator hAllocator, - uint32_t currentFrameIndex) +void VmaBlockVector::Defragment( + class VmaBlockVectorDefragmentationContext* pCtx, + VmaDefragmentationStats* pStats, VmaDefragmentationFlags flags, + VkDeviceSize& maxCpuBytesToMove, uint32_t& maxCpuAllocationsToMove, + VkDeviceSize& maxGpuBytesToMove, uint32_t& maxGpuAllocationsToMove, + VkCommandBuffer commandBuffer) { - if(m_pDefragmentator == VMA_NULL) + pCtx->res = VK_SUCCESS; + + const VkMemoryPropertyFlags memPropFlags = + m_hAllocator->m_MemProps.memoryTypes[m_MemoryTypeIndex].propertyFlags; + const bool isHostVisible = (memPropFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0; + + const bool canDefragmentOnCpu = maxCpuBytesToMove > 0 && maxCpuAllocationsToMove > 0 && + isHostVisible; + const bool canDefragmentOnGpu = maxGpuBytesToMove > 0 && maxGpuAllocationsToMove > 0 && + !IsCorruptionDetectionEnabled() && + ((1u << m_MemoryTypeIndex) & m_hAllocator->GetGpuDefragmentationMemoryTypeBits()) != 0; + + // There are options to defragment this memory type. + if(canDefragmentOnCpu || canDefragmentOnGpu) { - m_pDefragmentator = vma_new(m_hAllocator, VmaDefragmentator)( - hAllocator, - this, - currentFrameIndex); - } - - return m_pDefragmentator; -} - -VkResult VmaBlockVector::Defragment( - VmaDefragmentationStats* pDefragmentationStats, - VkDeviceSize& maxBytesToMove, - uint32_t& maxAllocationsToMove) -{ - if(m_pDefragmentator == VMA_NULL) - { - return VK_SUCCESS; - } - - VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex); - - // Defragment. - VkResult result = m_pDefragmentator->Defragment(maxBytesToMove, maxAllocationsToMove); - - // Accumulate statistics. - if(pDefragmentationStats != VMA_NULL) - { - const VkDeviceSize bytesMoved = m_pDefragmentator->GetBytesMoved(); - const uint32_t allocationsMoved = m_pDefragmentator->GetAllocationsMoved(); - pDefragmentationStats->bytesMoved += bytesMoved; - pDefragmentationStats->allocationsMoved += allocationsMoved; - VMA_ASSERT(bytesMoved <= maxBytesToMove); - VMA_ASSERT(allocationsMoved <= maxAllocationsToMove); - maxBytesToMove -= bytesMoved; - maxAllocationsToMove -= allocationsMoved; - } - - // Free empty blocks. - m_HasEmptyBlock = false; - for(size_t blockIndex = m_Blocks.size(); blockIndex--; ) - { - VmaDeviceMemoryBlock* pBlock = m_Blocks[blockIndex]; - if(pBlock->m_Metadata.IsEmpty()) + bool defragmentOnGpu; + // There is only one option to defragment this memory type. + if(canDefragmentOnGpu != canDefragmentOnCpu) { - if(m_Blocks.size() > m_MinBlockCount) - { - if(pDefragmentationStats != VMA_NULL) - { - ++pDefragmentationStats->deviceMemoryBlocksFreed; - pDefragmentationStats->bytesFreed += pBlock->m_Metadata.GetSize(); - } + defragmentOnGpu = canDefragmentOnGpu; + } + // Both options are available: Heuristics to choose the best one. + else + { + defragmentOnGpu = (memPropFlags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT) != 0 || + m_hAllocator->IsIntegratedGpu(); + } - VmaVectorRemove(m_Blocks, blockIndex); - pBlock->Destroy(m_hAllocator); - vma_delete(m_hAllocator, pBlock); + bool overlappingMoveSupported = !defragmentOnGpu; + + if(m_hAllocator->m_UseMutex) + { + if(flags & VMA_DEFRAGMENTATION_FLAG_INCREMENTAL) + { + if(!m_Mutex.TryLockWrite()) + { + pCtx->res = VK_ERROR_INITIALIZATION_FAILED; + return; + } } else { - m_HasEmptyBlock = true; + m_Mutex.LockWrite(); + pCtx->mutexLocked = true; + } + } + + pCtx->Begin(overlappingMoveSupported, flags); + + // Defragment. + + const VkDeviceSize maxBytesToMove = defragmentOnGpu ? maxGpuBytesToMove : maxCpuBytesToMove; + const uint32_t maxAllocationsToMove = defragmentOnGpu ? maxGpuAllocationsToMove : maxCpuAllocationsToMove; + pCtx->res = pCtx->GetAlgorithm()->Defragment(pCtx->defragmentationMoves, maxBytesToMove, maxAllocationsToMove, flags); + + // Accumulate statistics. + if(pStats != VMA_NULL) + { + const VkDeviceSize bytesMoved = pCtx->GetAlgorithm()->GetBytesMoved(); + const uint32_t allocationsMoved = pCtx->GetAlgorithm()->GetAllocationsMoved(); + pStats->bytesMoved += bytesMoved; + pStats->allocationsMoved += allocationsMoved; + VMA_ASSERT(bytesMoved <= maxBytesToMove); + VMA_ASSERT(allocationsMoved <= maxAllocationsToMove); + if(defragmentOnGpu) + { + maxGpuBytesToMove -= bytesMoved; + maxGpuAllocationsToMove -= allocationsMoved; + } + else + { + maxCpuBytesToMove -= bytesMoved; + maxCpuAllocationsToMove -= allocationsMoved; + } + } + + if(flags & VMA_DEFRAGMENTATION_FLAG_INCREMENTAL) + { + if(m_hAllocator->m_UseMutex) + m_Mutex.UnlockWrite(); + + if(pCtx->res >= VK_SUCCESS && !pCtx->defragmentationMoves.empty()) + pCtx->res = VK_NOT_READY; + + return; + } + + if(pCtx->res >= VK_SUCCESS) + { + if(defragmentOnGpu) + { + ApplyDefragmentationMovesGpu(pCtx, pCtx->defragmentationMoves, commandBuffer); + } + else + { + ApplyDefragmentationMovesCpu(pCtx, pCtx->defragmentationMoves); } } } +} +void VmaBlockVector::DefragmentationEnd( + class VmaBlockVectorDefragmentationContext* pCtx, + uint32_t flags, + VmaDefragmentationStats* pStats) +{ + if(flags & VMA_DEFRAGMENTATION_FLAG_INCREMENTAL && m_hAllocator->m_UseMutex) + { + VMA_ASSERT(pCtx->mutexLocked == false); + + // Incremental defragmentation doesn't hold the lock, so when we enter here we don't actually have any + // lock protecting us. Since we mutate state here, we have to take the lock out now + m_Mutex.LockWrite(); + pCtx->mutexLocked = true; + } + + // If the mutex isn't locked we didn't do any work and there is nothing to delete. + if(pCtx->mutexLocked || !m_hAllocator->m_UseMutex) + { + // Destroy buffers. + for(size_t blockIndex = pCtx->blockContexts.size(); blockIndex--;) + { + VmaBlockDefragmentationContext &blockCtx = pCtx->blockContexts[blockIndex]; + if(blockCtx.hBuffer) + { + (*m_hAllocator->GetVulkanFunctions().vkDestroyBuffer)(m_hAllocator->m_hDevice, blockCtx.hBuffer, m_hAllocator->GetAllocationCallbacks()); + } + } + + if(pCtx->res >= VK_SUCCESS) + { + FreeEmptyBlocks(pStats); + } + } + + if(pCtx->mutexLocked) + { + VMA_ASSERT(m_hAllocator->m_UseMutex); + m_Mutex.UnlockWrite(); + } +} + +uint32_t VmaBlockVector::ProcessDefragmentations( + class VmaBlockVectorDefragmentationContext *pCtx, + VmaDefragmentationPassMoveInfo* pMove, uint32_t maxMoves) +{ + VmaMutexLockWrite lock(m_Mutex, m_hAllocator->m_UseMutex); + + const uint32_t moveCount = VMA_MIN(uint32_t(pCtx->defragmentationMoves.size()) - pCtx->defragmentationMovesProcessed, maxMoves); + + for(uint32_t i = 0; i < moveCount; ++ i) + { + VmaDefragmentationMove& move = pCtx->defragmentationMoves[pCtx->defragmentationMovesProcessed + i]; + + pMove->allocation = move.hAllocation; + pMove->memory = move.pDstBlock->GetDeviceMemory(); + pMove->offset = move.dstOffset; + + ++ pMove; + } + + pCtx->defragmentationMovesProcessed += moveCount; + + return moveCount; +} + +void VmaBlockVector::CommitDefragmentations( + class VmaBlockVectorDefragmentationContext *pCtx, + VmaDefragmentationStats* pStats) +{ + VmaMutexLockWrite lock(m_Mutex, m_hAllocator->m_UseMutex); + + for(uint32_t i = pCtx->defragmentationMovesCommitted; i < pCtx->defragmentationMovesProcessed; ++ i) + { + const VmaDefragmentationMove &move = pCtx->defragmentationMoves[i]; + + move.pSrcBlock->m_pMetadata->FreeAtOffset(move.srcOffset); + move.hAllocation->ChangeBlockAllocation(m_hAllocator, move.pDstBlock, move.dstOffset); + } + + pCtx->defragmentationMovesCommitted = pCtx->defragmentationMovesProcessed; + FreeEmptyBlocks(pStats); +} + +size_t VmaBlockVector::CalcAllocationCount() const +{ + size_t result = 0; + for(size_t i = 0; i < m_Blocks.size(); ++i) + { + result += m_Blocks[i]->m_pMetadata->GetAllocationCount(); + } return result; } -void VmaBlockVector::DestroyDefragmentator() +bool VmaBlockVector::IsBufferImageGranularityConflictPossible() const { - if(m_pDefragmentator != VMA_NULL) + if(m_BufferImageGranularity == 1) { - vma_delete(m_hAllocator, m_pDefragmentator); - m_pDefragmentator = VMA_NULL; + return false; } + VmaSuballocationType lastSuballocType = VMA_SUBALLOCATION_TYPE_FREE; + for(size_t i = 0, count = m_Blocks.size(); i < count; ++i) + { + VmaDeviceMemoryBlock* const pBlock = m_Blocks[i]; + VMA_ASSERT(m_Algorithm == 0); + VmaBlockMetadata_Generic* const pMetadata = (VmaBlockMetadata_Generic*)pBlock->m_pMetadata; + if(pMetadata->IsBufferImageGranularityConflictPossible(m_BufferImageGranularity, lastSuballocType)) + { + return true; + } + } + return false; } void VmaBlockVector::MakePoolAllocationsLost( uint32_t currentFrameIndex, size_t* pLostAllocationCount) { - VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex); + VmaMutexLockWrite lock(m_Mutex, m_hAllocator->m_UseMutex); size_t lostAllocationCount = 0; for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex) { VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex]; VMA_ASSERT(pBlock); - lostAllocationCount += pBlock->m_Metadata.MakeAllocationsLost(currentFrameIndex, m_FrameInUseCount); + lostAllocationCount += pBlock->m_pMetadata->MakeAllocationsLost(currentFrameIndex, m_FrameInUseCount); } if(pLostAllocationCount != VMA_NULL) { @@ -7068,12 +12405,33 @@ void VmaBlockVector::MakePoolAllocationsLost( } } +VkResult VmaBlockVector::CheckCorruption() +{ + if(!IsCorruptionDetectionEnabled()) + { + return VK_ERROR_FEATURE_NOT_PRESENT; + } + + VmaMutexLockRead lock(m_Mutex, m_hAllocator->m_UseMutex); + for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex) + { + VmaDeviceMemoryBlock* const pBlock = m_Blocks[blockIndex]; + VMA_ASSERT(pBlock); + VkResult res = pBlock->CheckCorruption(m_hAllocator); + if(res != VK_SUCCESS) + { + return res; + } + } + return VK_SUCCESS; +} + void VmaBlockVector::AddStats(VmaStats* pStats) { const uint32_t memTypeIndex = m_MemoryTypeIndex; const uint32_t memHeapIndex = m_hAllocator->MemoryTypeIndexToHeapIndex(memTypeIndex); - VmaMutexLock lock(m_Mutex, m_hAllocator->m_UseMutex); + VmaMutexLockRead lock(m_Mutex, m_hAllocator->m_UseMutex); for(uint32_t blockIndex = 0; blockIndex < m_Blocks.size(); ++blockIndex) { @@ -7081,7 +12439,7 @@ void VmaBlockVector::AddStats(VmaStats* pStats) VMA_ASSERT(pBlock); VMA_HEAVY_ASSERT(pBlock->Validate()); VmaStatInfo allocationStatInfo; - pBlock->m_Metadata.CalcAllocationStatInfo(allocationStatInfo); + pBlock->m_pMetadata->CalcAllocationStatInfo(allocationStatInfo); VmaAddStatInfo(pStats->total, allocationStatInfo); VmaAddStatInfo(pStats->memoryType[memTypeIndex], allocationStatInfo); VmaAddStatInfo(pStats->memoryHeap[memHeapIndex], allocationStatInfo); @@ -7089,23 +12447,35 @@ void VmaBlockVector::AddStats(VmaStats* pStats) } //////////////////////////////////////////////////////////////////////////////// -// VmaDefragmentator members definition +// VmaDefragmentationAlgorithm_Generic members definition -VmaDefragmentator::VmaDefragmentator( +VmaDefragmentationAlgorithm_Generic::VmaDefragmentationAlgorithm_Generic( VmaAllocator hAllocator, VmaBlockVector* pBlockVector, - uint32_t currentFrameIndex) : - m_hAllocator(hAllocator), - m_pBlockVector(pBlockVector), - m_CurrentFrameIndex(currentFrameIndex), + uint32_t currentFrameIndex, + bool overlappingMoveSupported) : + VmaDefragmentationAlgorithm(hAllocator, pBlockVector, currentFrameIndex), + m_AllocationCount(0), + m_AllAllocations(false), m_BytesMoved(0), m_AllocationsMoved(0), - m_Allocations(VmaStlAllocator(hAllocator->GetAllocationCallbacks())), m_Blocks(VmaStlAllocator(hAllocator->GetAllocationCallbacks())) { + // Create block info for each block. + const size_t blockCount = m_pBlockVector->m_Blocks.size(); + for(size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex) + { + BlockInfo* pBlockInfo = vma_new(m_hAllocator, BlockInfo)(m_hAllocator->GetAllocationCallbacks()); + pBlockInfo->m_OriginalBlockIndex = blockIndex; + pBlockInfo->m_pBlock = m_pBlockVector->m_Blocks[blockIndex]; + m_Blocks.push_back(pBlockInfo); + } + + // Sort them by m_pBlock pointer value. + VMA_SORT(m_Blocks.begin(), m_Blocks.end(), BlockPointerLess()); } -VmaDefragmentator::~VmaDefragmentator() +VmaDefragmentationAlgorithm_Generic::~VmaDefragmentationAlgorithm_Generic() { for(size_t i = m_Blocks.size(); i--; ) { @@ -7113,66 +12483,72 @@ VmaDefragmentator::~VmaDefragmentator() } } -void VmaDefragmentator::AddAllocation(VmaAllocation hAlloc, VkBool32* pChanged) +void VmaDefragmentationAlgorithm_Generic::AddAllocation(VmaAllocation hAlloc, VkBool32* pChanged) { - AllocationInfo allocInfo; - allocInfo.m_hAllocation = hAlloc; - allocInfo.m_pChanged = pChanged; - m_Allocations.push_back(allocInfo); -} + // Now as we are inside VmaBlockVector::m_Mutex, we can make final check if this allocation was not lost. + if(hAlloc->GetLastUseFrameIndex() != VMA_FRAME_INDEX_LOST) + { + VmaDeviceMemoryBlock* pBlock = hAlloc->GetBlock(); + BlockInfoVector::iterator it = VmaBinaryFindFirstNotLess(m_Blocks.begin(), m_Blocks.end(), pBlock, BlockPointerLess()); + if(it != m_Blocks.end() && (*it)->m_pBlock == pBlock) + { + AllocationInfo allocInfo = AllocationInfo(hAlloc, pChanged); + (*it)->m_Allocations.push_back(allocInfo); + } + else + { + VMA_ASSERT(0); + } -VkResult VmaDefragmentator::BlockInfo::EnsureMapping(VmaAllocator hAllocator, void** ppMappedData) -{ - // It has already been mapped for defragmentation. - if(m_pMappedDataForDefragmentation) - { - *ppMappedData = m_pMappedDataForDefragmentation; - return VK_SUCCESS; - } - - // It is originally mapped. - if(m_pBlock->GetMappedData()) - { - *ppMappedData = m_pBlock->GetMappedData(); - return VK_SUCCESS; - } - - // Map on first usage. - VkResult res = m_pBlock->Map(hAllocator, 1, &m_pMappedDataForDefragmentation); - *ppMappedData = m_pMappedDataForDefragmentation; - return res; -} - -void VmaDefragmentator::BlockInfo::Unmap(VmaAllocator hAllocator) -{ - if(m_pMappedDataForDefragmentation != VMA_NULL) - { - m_pBlock->Unmap(hAllocator, 1); + ++m_AllocationCount; } } -VkResult VmaDefragmentator::DefragmentRound( +VkResult VmaDefragmentationAlgorithm_Generic::DefragmentRound( + VmaVector< VmaDefragmentationMove, VmaStlAllocator >& moves, VkDeviceSize maxBytesToMove, - uint32_t maxAllocationsToMove) + uint32_t maxAllocationsToMove, + bool freeOldAllocations) { if(m_Blocks.empty()) { return VK_SUCCESS; } + // This is a choice based on research. + // Option 1: + uint32_t strategy = VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT; + // Option 2: + //uint32_t strategy = VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT; + // Option 3: + //uint32_t strategy = VMA_ALLOCATION_CREATE_STRATEGY_MIN_FRAGMENTATION_BIT; + + size_t srcBlockMinIndex = 0; + // When FAST_ALGORITHM, move allocations from only last out of blocks that contain non-movable allocations. + /* + if(m_AlgorithmFlags & VMA_DEFRAGMENTATION_FAST_ALGORITHM_BIT) + { + const size_t blocksWithNonMovableCount = CalcBlocksWithNonMovableCount(); + if(blocksWithNonMovableCount > 0) + { + srcBlockMinIndex = blocksWithNonMovableCount - 1; + } + } + */ + size_t srcBlockIndex = m_Blocks.size() - 1; size_t srcAllocIndex = SIZE_MAX; for(;;) { // 1. Find next allocation to move. // 1.1. Start from last to first m_Blocks - they are sorted from most "destination" to most "source". - // 1.2. Then start from last to first m_Allocations - they are sorted from largest to smallest. + // 1.2. Then start from last to first m_Allocations. while(srcAllocIndex >= m_Blocks[srcBlockIndex]->m_Allocations.size()) { if(m_Blocks[srcBlockIndex]->m_Allocations.empty()) { // Finished: no more allocations to process. - if(srcBlockIndex == 0) + if(srcBlockIndex == srcBlockMinIndex) { return VK_SUCCESS; } @@ -7187,7 +12563,7 @@ VkResult VmaDefragmentator::DefragmentRound( srcAllocIndex = m_Blocks[srcBlockIndex]->m_Allocations.size() - 1; } } - + BlockInfo* pSrcBlockInfo = m_Blocks[srcBlockIndex]; AllocationInfo& allocInfo = pSrcBlockInfo->m_Allocations[srcAllocIndex]; @@ -7201,14 +12577,16 @@ VkResult VmaDefragmentator::DefragmentRound( { BlockInfo* pDstBlockInfo = m_Blocks[dstBlockIndex]; VmaAllocationRequest dstAllocRequest; - if(pDstBlockInfo->m_pBlock->m_Metadata.CreateAllocationRequest( + if(pDstBlockInfo->m_pBlock->m_pMetadata->CreateAllocationRequest( m_CurrentFrameIndex, m_pBlockVector->GetFrameInUseCount(), m_pBlockVector->GetBufferImageGranularity(), size, alignment, + false, // upperAddress suballocType, false, // canMakeOtherLost + strategy, &dstAllocRequest) && MoveMakesSense( dstBlockIndex, dstAllocRequest.offset, srcBlockIndex, srcOffset)) @@ -7219,33 +12597,32 @@ VkResult VmaDefragmentator::DefragmentRound( if((m_AllocationsMoved + 1 > maxAllocationsToMove) || (m_BytesMoved + size > maxBytesToMove)) { - return VK_INCOMPLETE; + return VK_SUCCESS; } - void* pDstMappedData = VMA_NULL; - VkResult res = pDstBlockInfo->EnsureMapping(m_hAllocator, &pDstMappedData); - if(res != VK_SUCCESS) - { - return res; - } + VmaDefragmentationMove move = {}; + move.srcBlockIndex = pSrcBlockInfo->m_OriginalBlockIndex; + move.dstBlockIndex = pDstBlockInfo->m_OriginalBlockIndex; + move.srcOffset = srcOffset; + move.dstOffset = dstAllocRequest.offset; + move.size = size; + move.hAllocation = allocInfo.m_hAllocation; + move.pSrcBlock = pSrcBlockInfo->m_pBlock; + move.pDstBlock = pDstBlockInfo->m_pBlock; - void* pSrcMappedData = VMA_NULL; - res = pSrcBlockInfo->EnsureMapping(m_hAllocator, &pSrcMappedData); - if(res != VK_SUCCESS) + moves.push_back(move); + + pDstBlockInfo->m_pBlock->m_pMetadata->Alloc( + dstAllocRequest, + suballocType, + size, + allocInfo.m_hAllocation); + + if(freeOldAllocations) { - return res; + pSrcBlockInfo->m_pBlock->m_pMetadata->FreeAtOffset(srcOffset); + allocInfo.m_hAllocation->ChangeBlockAllocation(m_hAllocator, pDstBlockInfo->m_pBlock, dstAllocRequest.offset); } - - // THE PLACE WHERE ACTUAL DATA COPY HAPPENS. - memcpy( - reinterpret_cast(pDstMappedData) + dstAllocRequest.offset, - reinterpret_cast(pSrcMappedData) + srcOffset, - static_cast(size)); - - pDstBlockInfo->m_pBlock->m_Metadata.Alloc(dstAllocRequest, suballocType, size, allocInfo.m_hAllocation); - pSrcBlockInfo->m_pBlock->m_Metadata.FreeAtOffset(srcOffset); - - allocInfo.m_hAllocation->ChangeBlockAllocation(m_hAllocator, pDstBlockInfo->m_pBlock, dstAllocRequest.offset); if(allocInfo.m_pChanged != VMA_NULL) { @@ -7282,75 +12659,76 @@ VkResult VmaDefragmentator::DefragmentRound( } } -VkResult VmaDefragmentator::Defragment( - VkDeviceSize maxBytesToMove, - uint32_t maxAllocationsToMove) +size_t VmaDefragmentationAlgorithm_Generic::CalcBlocksWithNonMovableCount() const { - if(m_Allocations.empty()) + size_t result = 0; + for(size_t i = 0; i < m_Blocks.size(); ++i) + { + if(m_Blocks[i]->m_HasNonMovableAllocations) + { + ++result; + } + } + return result; +} + +VkResult VmaDefragmentationAlgorithm_Generic::Defragment( + VmaVector< VmaDefragmentationMove, VmaStlAllocator >& moves, + VkDeviceSize maxBytesToMove, + uint32_t maxAllocationsToMove, + VmaDefragmentationFlags flags) +{ + if(!m_AllAllocations && m_AllocationCount == 0) { return VK_SUCCESS; } - // Create block info for each block. - const size_t blockCount = m_pBlockVector->m_Blocks.size(); - for(size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex) - { - BlockInfo* pBlockInfo = vma_new(m_hAllocator, BlockInfo)(m_hAllocator->GetAllocationCallbacks()); - pBlockInfo->m_pBlock = m_pBlockVector->m_Blocks[blockIndex]; - m_Blocks.push_back(pBlockInfo); - } - - // Sort them by m_pBlock pointer value. - VMA_SORT(m_Blocks.begin(), m_Blocks.end(), BlockPointerLess()); - - // Move allocation infos from m_Allocations to appropriate m_Blocks[memTypeIndex].m_Allocations. - for(size_t blockIndex = 0, allocCount = m_Allocations.size(); blockIndex < allocCount; ++blockIndex) - { - AllocationInfo& allocInfo = m_Allocations[blockIndex]; - // Now as we are inside VmaBlockVector::m_Mutex, we can make final check if this allocation was not lost. - if(allocInfo.m_hAllocation->GetLastUseFrameIndex() != VMA_FRAME_INDEX_LOST) - { - VmaDeviceMemoryBlock* pBlock = allocInfo.m_hAllocation->GetBlock(); - BlockInfoVector::iterator it = VmaBinaryFindFirstNotLess(m_Blocks.begin(), m_Blocks.end(), pBlock, BlockPointerLess()); - if(it != m_Blocks.end() && (*it)->m_pBlock == pBlock) - { - (*it)->m_Allocations.push_back(allocInfo); - } - else - { - VMA_ASSERT(0); - } - } - } - m_Allocations.clear(); - + const size_t blockCount = m_Blocks.size(); for(size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex) { BlockInfo* pBlockInfo = m_Blocks[blockIndex]; + + if(m_AllAllocations) + { + VmaBlockMetadata_Generic* pMetadata = (VmaBlockMetadata_Generic*)pBlockInfo->m_pBlock->m_pMetadata; + for(VmaSuballocationList::const_iterator it = pMetadata->m_Suballocations.begin(); + it != pMetadata->m_Suballocations.end(); + ++it) + { + if(it->type != VMA_SUBALLOCATION_TYPE_FREE) + { + AllocationInfo allocInfo = AllocationInfo(it->hAllocation, VMA_NULL); + pBlockInfo->m_Allocations.push_back(allocInfo); + } + } + } + pBlockInfo->CalcHasNonMovableAllocations(); - pBlockInfo->SortAllocationsBySizeDescecnding(); + + // This is a choice based on research. + // Option 1: + pBlockInfo->SortAllocationsByOffsetDescending(); + // Option 2: + //pBlockInfo->SortAllocationsBySizeDescending(); } // Sort m_Blocks this time by the main criterium, from most "destination" to most "source" blocks. VMA_SORT(m_Blocks.begin(), m_Blocks.end(), BlockInfoCompareMoveDestination()); + // This is a choice based on research. + const uint32_t roundCount = 2; + // Execute defragmentation rounds (the main part). VkResult result = VK_SUCCESS; - for(size_t round = 0; (round < 2) && (result == VK_SUCCESS); ++round) + for(uint32_t round = 0; (round < roundCount) && (result == VK_SUCCESS); ++round) { - result = DefragmentRound(maxBytesToMove, maxAllocationsToMove); - } - - // Unmap blocks that were mapped for defragmentation. - for(size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex) - { - m_Blocks[blockIndex]->Unmap(m_hAllocator); + result = DefragmentRound(moves, maxBytesToMove, maxAllocationsToMove, !(flags & VMA_DEFRAGMENTATION_FLAG_INCREMENTAL)); } return result; } -bool VmaDefragmentator::MoveMakesSense( +bool VmaDefragmentationAlgorithm_Generic::MoveMakesSense( size_t dstBlockIndex, VkDeviceSize dstOffset, size_t srcBlockIndex, VkDeviceSize srcOffset) { @@ -7369,37 +12747,1535 @@ bool VmaDefragmentator::MoveMakesSense( return false; } +//////////////////////////////////////////////////////////////////////////////// +// VmaDefragmentationAlgorithm_Fast + +VmaDefragmentationAlgorithm_Fast::VmaDefragmentationAlgorithm_Fast( + VmaAllocator hAllocator, + VmaBlockVector* pBlockVector, + uint32_t currentFrameIndex, + bool overlappingMoveSupported) : + VmaDefragmentationAlgorithm(hAllocator, pBlockVector, currentFrameIndex), + m_OverlappingMoveSupported(overlappingMoveSupported), + m_AllocationCount(0), + m_AllAllocations(false), + m_BytesMoved(0), + m_AllocationsMoved(0), + m_BlockInfos(VmaStlAllocator(hAllocator->GetAllocationCallbacks())) +{ + VMA_ASSERT(VMA_DEBUG_MARGIN == 0); + +} + +VmaDefragmentationAlgorithm_Fast::~VmaDefragmentationAlgorithm_Fast() +{ +} + +VkResult VmaDefragmentationAlgorithm_Fast::Defragment( + VmaVector< VmaDefragmentationMove, VmaStlAllocator >& moves, + VkDeviceSize maxBytesToMove, + uint32_t maxAllocationsToMove, + VmaDefragmentationFlags flags) +{ + VMA_ASSERT(m_AllAllocations || m_pBlockVector->CalcAllocationCount() == m_AllocationCount); + + const size_t blockCount = m_pBlockVector->GetBlockCount(); + if(blockCount == 0 || maxBytesToMove == 0 || maxAllocationsToMove == 0) + { + return VK_SUCCESS; + } + + PreprocessMetadata(); + + // Sort blocks in order from most destination. + + m_BlockInfos.resize(blockCount); + for(size_t i = 0; i < blockCount; ++i) + { + m_BlockInfos[i].origBlockIndex = i; + } + + VMA_SORT(m_BlockInfos.begin(), m_BlockInfos.end(), [this](const BlockInfo& lhs, const BlockInfo& rhs) -> bool { + return m_pBlockVector->GetBlock(lhs.origBlockIndex)->m_pMetadata->GetSumFreeSize() < + m_pBlockVector->GetBlock(rhs.origBlockIndex)->m_pMetadata->GetSumFreeSize(); + }); + + // THE MAIN ALGORITHM + + FreeSpaceDatabase freeSpaceDb; + + size_t dstBlockInfoIndex = 0; + size_t dstOrigBlockIndex = m_BlockInfos[dstBlockInfoIndex].origBlockIndex; + VmaDeviceMemoryBlock* pDstBlock = m_pBlockVector->GetBlock(dstOrigBlockIndex); + VmaBlockMetadata_Generic* pDstMetadata = (VmaBlockMetadata_Generic*)pDstBlock->m_pMetadata; + VkDeviceSize dstBlockSize = pDstMetadata->GetSize(); + VkDeviceSize dstOffset = 0; + + bool end = false; + for(size_t srcBlockInfoIndex = 0; !end && srcBlockInfoIndex < blockCount; ++srcBlockInfoIndex) + { + const size_t srcOrigBlockIndex = m_BlockInfos[srcBlockInfoIndex].origBlockIndex; + VmaDeviceMemoryBlock* const pSrcBlock = m_pBlockVector->GetBlock(srcOrigBlockIndex); + VmaBlockMetadata_Generic* const pSrcMetadata = (VmaBlockMetadata_Generic*)pSrcBlock->m_pMetadata; + for(VmaSuballocationList::iterator srcSuballocIt = pSrcMetadata->m_Suballocations.begin(); + !end && srcSuballocIt != pSrcMetadata->m_Suballocations.end(); ) + { + VmaAllocation_T* const pAlloc = srcSuballocIt->hAllocation; + const VkDeviceSize srcAllocAlignment = pAlloc->GetAlignment(); + const VkDeviceSize srcAllocSize = srcSuballocIt->size; + if(m_AllocationsMoved == maxAllocationsToMove || + m_BytesMoved + srcAllocSize > maxBytesToMove) + { + end = true; + break; + } + const VkDeviceSize srcAllocOffset = srcSuballocIt->offset; + + VmaDefragmentationMove move = {}; + // Try to place it in one of free spaces from the database. + size_t freeSpaceInfoIndex; + VkDeviceSize dstAllocOffset; + if(freeSpaceDb.Fetch(srcAllocAlignment, srcAllocSize, + freeSpaceInfoIndex, dstAllocOffset)) + { + size_t freeSpaceOrigBlockIndex = m_BlockInfos[freeSpaceInfoIndex].origBlockIndex; + VmaDeviceMemoryBlock* pFreeSpaceBlock = m_pBlockVector->GetBlock(freeSpaceOrigBlockIndex); + VmaBlockMetadata_Generic* pFreeSpaceMetadata = (VmaBlockMetadata_Generic*)pFreeSpaceBlock->m_pMetadata; + + // Same block + if(freeSpaceInfoIndex == srcBlockInfoIndex) + { + VMA_ASSERT(dstAllocOffset <= srcAllocOffset); + + // MOVE OPTION 1: Move the allocation inside the same block by decreasing offset. + + VmaSuballocation suballoc = *srcSuballocIt; + suballoc.offset = dstAllocOffset; + suballoc.hAllocation->ChangeOffset(dstAllocOffset); + m_BytesMoved += srcAllocSize; + ++m_AllocationsMoved; + + VmaSuballocationList::iterator nextSuballocIt = srcSuballocIt; + ++nextSuballocIt; + pSrcMetadata->m_Suballocations.erase(srcSuballocIt); + srcSuballocIt = nextSuballocIt; + + InsertSuballoc(pFreeSpaceMetadata, suballoc); + + move.srcBlockIndex = srcOrigBlockIndex; + move.dstBlockIndex = freeSpaceOrigBlockIndex; + move.srcOffset = srcAllocOffset; + move.dstOffset = dstAllocOffset; + move.size = srcAllocSize; + + moves.push_back(move); + } + // Different block + else + { + // MOVE OPTION 2: Move the allocation to a different block. + + VMA_ASSERT(freeSpaceInfoIndex < srcBlockInfoIndex); + + VmaSuballocation suballoc = *srcSuballocIt; + suballoc.offset = dstAllocOffset; + suballoc.hAllocation->ChangeBlockAllocation(m_hAllocator, pFreeSpaceBlock, dstAllocOffset); + m_BytesMoved += srcAllocSize; + ++m_AllocationsMoved; + + VmaSuballocationList::iterator nextSuballocIt = srcSuballocIt; + ++nextSuballocIt; + pSrcMetadata->m_Suballocations.erase(srcSuballocIt); + srcSuballocIt = nextSuballocIt; + + InsertSuballoc(pFreeSpaceMetadata, suballoc); + + move.srcBlockIndex = srcOrigBlockIndex; + move.dstBlockIndex = freeSpaceOrigBlockIndex; + move.srcOffset = srcAllocOffset; + move.dstOffset = dstAllocOffset; + move.size = srcAllocSize; + + moves.push_back(move); + } + } + else + { + dstAllocOffset = VmaAlignUp(dstOffset, srcAllocAlignment); + + // If the allocation doesn't fit before the end of dstBlock, forward to next block. + while(dstBlockInfoIndex < srcBlockInfoIndex && + dstAllocOffset + srcAllocSize > dstBlockSize) + { + // But before that, register remaining free space at the end of dst block. + freeSpaceDb.Register(dstBlockInfoIndex, dstOffset, dstBlockSize - dstOffset); + + ++dstBlockInfoIndex; + dstOrigBlockIndex = m_BlockInfos[dstBlockInfoIndex].origBlockIndex; + pDstBlock = m_pBlockVector->GetBlock(dstOrigBlockIndex); + pDstMetadata = (VmaBlockMetadata_Generic*)pDstBlock->m_pMetadata; + dstBlockSize = pDstMetadata->GetSize(); + dstOffset = 0; + dstAllocOffset = 0; + } + + // Same block + if(dstBlockInfoIndex == srcBlockInfoIndex) + { + VMA_ASSERT(dstAllocOffset <= srcAllocOffset); + + const bool overlap = dstAllocOffset + srcAllocSize > srcAllocOffset; + + bool skipOver = overlap; + if(overlap && m_OverlappingMoveSupported && dstAllocOffset < srcAllocOffset) + { + // If destination and source place overlap, skip if it would move it + // by only < 1/64 of its size. + skipOver = (srcAllocOffset - dstAllocOffset) * 64 < srcAllocSize; + } + + if(skipOver) + { + freeSpaceDb.Register(dstBlockInfoIndex, dstOffset, srcAllocOffset - dstOffset); + + dstOffset = srcAllocOffset + srcAllocSize; + ++srcSuballocIt; + } + // MOVE OPTION 1: Move the allocation inside the same block by decreasing offset. + else + { + srcSuballocIt->offset = dstAllocOffset; + srcSuballocIt->hAllocation->ChangeOffset(dstAllocOffset); + dstOffset = dstAllocOffset + srcAllocSize; + m_BytesMoved += srcAllocSize; + ++m_AllocationsMoved; + ++srcSuballocIt; + + move.srcBlockIndex = srcOrigBlockIndex; + move.dstBlockIndex = dstOrigBlockIndex; + move.srcOffset = srcAllocOffset; + move.dstOffset = dstAllocOffset; + move.size = srcAllocSize; + + moves.push_back(move); + } + } + // Different block + else + { + // MOVE OPTION 2: Move the allocation to a different block. + + VMA_ASSERT(dstBlockInfoIndex < srcBlockInfoIndex); + VMA_ASSERT(dstAllocOffset + srcAllocSize <= dstBlockSize); + + VmaSuballocation suballoc = *srcSuballocIt; + suballoc.offset = dstAllocOffset; + suballoc.hAllocation->ChangeBlockAllocation(m_hAllocator, pDstBlock, dstAllocOffset); + dstOffset = dstAllocOffset + srcAllocSize; + m_BytesMoved += srcAllocSize; + ++m_AllocationsMoved; + + VmaSuballocationList::iterator nextSuballocIt = srcSuballocIt; + ++nextSuballocIt; + pSrcMetadata->m_Suballocations.erase(srcSuballocIt); + srcSuballocIt = nextSuballocIt; + + pDstMetadata->m_Suballocations.push_back(suballoc); + + move.srcBlockIndex = srcOrigBlockIndex; + move.dstBlockIndex = dstOrigBlockIndex; + move.srcOffset = srcAllocOffset; + move.dstOffset = dstAllocOffset; + move.size = srcAllocSize; + + moves.push_back(move); + } + } + } + } + + m_BlockInfos.clear(); + + PostprocessMetadata(); + + return VK_SUCCESS; +} + +void VmaDefragmentationAlgorithm_Fast::PreprocessMetadata() +{ + const size_t blockCount = m_pBlockVector->GetBlockCount(); + for(size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex) + { + VmaBlockMetadata_Generic* const pMetadata = + (VmaBlockMetadata_Generic*)m_pBlockVector->GetBlock(blockIndex)->m_pMetadata; + pMetadata->m_FreeCount = 0; + pMetadata->m_SumFreeSize = pMetadata->GetSize(); + pMetadata->m_FreeSuballocationsBySize.clear(); + for(VmaSuballocationList::iterator it = pMetadata->m_Suballocations.begin(); + it != pMetadata->m_Suballocations.end(); ) + { + if(it->type == VMA_SUBALLOCATION_TYPE_FREE) + { + VmaSuballocationList::iterator nextIt = it; + ++nextIt; + pMetadata->m_Suballocations.erase(it); + it = nextIt; + } + else + { + ++it; + } + } + } +} + +void VmaDefragmentationAlgorithm_Fast::PostprocessMetadata() +{ + const size_t blockCount = m_pBlockVector->GetBlockCount(); + for(size_t blockIndex = 0; blockIndex < blockCount; ++blockIndex) + { + VmaBlockMetadata_Generic* const pMetadata = + (VmaBlockMetadata_Generic*)m_pBlockVector->GetBlock(blockIndex)->m_pMetadata; + const VkDeviceSize blockSize = pMetadata->GetSize(); + + // No allocations in this block - entire area is free. + if(pMetadata->m_Suballocations.empty()) + { + pMetadata->m_FreeCount = 1; + //pMetadata->m_SumFreeSize is already set to blockSize. + VmaSuballocation suballoc = { + 0, // offset + blockSize, // size + VMA_NULL, // hAllocation + VMA_SUBALLOCATION_TYPE_FREE }; + pMetadata->m_Suballocations.push_back(suballoc); + pMetadata->RegisterFreeSuballocation(pMetadata->m_Suballocations.begin()); + } + // There are some allocations in this block. + else + { + VkDeviceSize offset = 0; + VmaSuballocationList::iterator it; + for(it = pMetadata->m_Suballocations.begin(); + it != pMetadata->m_Suballocations.end(); + ++it) + { + VMA_ASSERT(it->type != VMA_SUBALLOCATION_TYPE_FREE); + VMA_ASSERT(it->offset >= offset); + + // Need to insert preceding free space. + if(it->offset > offset) + { + ++pMetadata->m_FreeCount; + const VkDeviceSize freeSize = it->offset - offset; + VmaSuballocation suballoc = { + offset, // offset + freeSize, // size + VMA_NULL, // hAllocation + VMA_SUBALLOCATION_TYPE_FREE }; + VmaSuballocationList::iterator precedingFreeIt = pMetadata->m_Suballocations.insert(it, suballoc); + if(freeSize >= VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER) + { + pMetadata->m_FreeSuballocationsBySize.push_back(precedingFreeIt); + } + } + + pMetadata->m_SumFreeSize -= it->size; + offset = it->offset + it->size; + } + + // Need to insert trailing free space. + if(offset < blockSize) + { + ++pMetadata->m_FreeCount; + const VkDeviceSize freeSize = blockSize - offset; + VmaSuballocation suballoc = { + offset, // offset + freeSize, // size + VMA_NULL, // hAllocation + VMA_SUBALLOCATION_TYPE_FREE }; + VMA_ASSERT(it == pMetadata->m_Suballocations.end()); + VmaSuballocationList::iterator trailingFreeIt = pMetadata->m_Suballocations.insert(it, suballoc); + if(freeSize > VMA_MIN_FREE_SUBALLOCATION_SIZE_TO_REGISTER) + { + pMetadata->m_FreeSuballocationsBySize.push_back(trailingFreeIt); + } + } + + VMA_SORT( + pMetadata->m_FreeSuballocationsBySize.begin(), + pMetadata->m_FreeSuballocationsBySize.end(), + VmaSuballocationItemSizeLess()); + } + + VMA_HEAVY_ASSERT(pMetadata->Validate()); + } +} + +void VmaDefragmentationAlgorithm_Fast::InsertSuballoc(VmaBlockMetadata_Generic* pMetadata, const VmaSuballocation& suballoc) +{ + // TODO: Optimize somehow. Remember iterator instead of searching for it linearly. + VmaSuballocationList::iterator it = pMetadata->m_Suballocations.begin(); + while(it != pMetadata->m_Suballocations.end()) + { + if(it->offset < suballoc.offset) + { + ++it; + } + } + pMetadata->m_Suballocations.insert(it, suballoc); +} + +//////////////////////////////////////////////////////////////////////////////// +// VmaBlockVectorDefragmentationContext + +VmaBlockVectorDefragmentationContext::VmaBlockVectorDefragmentationContext( + VmaAllocator hAllocator, + VmaPool hCustomPool, + VmaBlockVector* pBlockVector, + uint32_t currFrameIndex) : + res(VK_SUCCESS), + mutexLocked(false), + blockContexts(VmaStlAllocator(hAllocator->GetAllocationCallbacks())), + defragmentationMoves(VmaStlAllocator(hAllocator->GetAllocationCallbacks())), + defragmentationMovesProcessed(0), + defragmentationMovesCommitted(0), + hasDefragmentationPlan(0), + m_hAllocator(hAllocator), + m_hCustomPool(hCustomPool), + m_pBlockVector(pBlockVector), + m_CurrFrameIndex(currFrameIndex), + m_pAlgorithm(VMA_NULL), + m_Allocations(VmaStlAllocator(hAllocator->GetAllocationCallbacks())), + m_AllAllocations(false) +{ +} + +VmaBlockVectorDefragmentationContext::~VmaBlockVectorDefragmentationContext() +{ + vma_delete(m_hAllocator, m_pAlgorithm); +} + +void VmaBlockVectorDefragmentationContext::AddAllocation(VmaAllocation hAlloc, VkBool32* pChanged) +{ + AllocInfo info = { hAlloc, pChanged }; + m_Allocations.push_back(info); +} + +void VmaBlockVectorDefragmentationContext::Begin(bool overlappingMoveSupported, VmaDefragmentationFlags flags) +{ + const bool allAllocations = m_AllAllocations || + m_Allocations.size() == m_pBlockVector->CalcAllocationCount(); + + /******************************** + HERE IS THE CHOICE OF DEFRAGMENTATION ALGORITHM. + ********************************/ + + /* + Fast algorithm is supported only when certain criteria are met: + - VMA_DEBUG_MARGIN is 0. + - All allocations in this block vector are moveable. + - There is no possibility of image/buffer granularity conflict. + - The defragmentation is not incremental + */ + if(VMA_DEBUG_MARGIN == 0 && + allAllocations && + !m_pBlockVector->IsBufferImageGranularityConflictPossible() && + !(flags & VMA_DEFRAGMENTATION_FLAG_INCREMENTAL)) + { + m_pAlgorithm = vma_new(m_hAllocator, VmaDefragmentationAlgorithm_Fast)( + m_hAllocator, m_pBlockVector, m_CurrFrameIndex, overlappingMoveSupported); + } + else + { + m_pAlgorithm = vma_new(m_hAllocator, VmaDefragmentationAlgorithm_Generic)( + m_hAllocator, m_pBlockVector, m_CurrFrameIndex, overlappingMoveSupported); + } + + if(allAllocations) + { + m_pAlgorithm->AddAll(); + } + else + { + for(size_t i = 0, count = m_Allocations.size(); i < count; ++i) + { + m_pAlgorithm->AddAllocation(m_Allocations[i].hAlloc, m_Allocations[i].pChanged); + } + } +} + +//////////////////////////////////////////////////////////////////////////////// +// VmaDefragmentationContext + +VmaDefragmentationContext_T::VmaDefragmentationContext_T( + VmaAllocator hAllocator, + uint32_t currFrameIndex, + uint32_t flags, + VmaDefragmentationStats* pStats) : + m_hAllocator(hAllocator), + m_CurrFrameIndex(currFrameIndex), + m_Flags(flags), + m_pStats(pStats), + m_CustomPoolContexts(VmaStlAllocator(hAllocator->GetAllocationCallbacks())) +{ + memset(m_DefaultPoolContexts, 0, sizeof(m_DefaultPoolContexts)); +} + +VmaDefragmentationContext_T::~VmaDefragmentationContext_T() +{ + for(size_t i = m_CustomPoolContexts.size(); i--; ) + { + VmaBlockVectorDefragmentationContext* pBlockVectorCtx = m_CustomPoolContexts[i]; + pBlockVectorCtx->GetBlockVector()->DefragmentationEnd(pBlockVectorCtx, m_Flags, m_pStats); + vma_delete(m_hAllocator, pBlockVectorCtx); + } + for(size_t i = m_hAllocator->m_MemProps.memoryTypeCount; i--; ) + { + VmaBlockVectorDefragmentationContext* pBlockVectorCtx = m_DefaultPoolContexts[i]; + if(pBlockVectorCtx) + { + pBlockVectorCtx->GetBlockVector()->DefragmentationEnd(pBlockVectorCtx, m_Flags, m_pStats); + vma_delete(m_hAllocator, pBlockVectorCtx); + } + } +} + +void VmaDefragmentationContext_T::AddPools(uint32_t poolCount, const VmaPool* pPools) +{ + for(uint32_t poolIndex = 0; poolIndex < poolCount; ++poolIndex) + { + VmaPool pool = pPools[poolIndex]; + VMA_ASSERT(pool); + // Pools with algorithm other than default are not defragmented. + if(pool->m_BlockVector.GetAlgorithm() == 0) + { + VmaBlockVectorDefragmentationContext* pBlockVectorDefragCtx = VMA_NULL; + + for(size_t i = m_CustomPoolContexts.size(); i--; ) + { + if(m_CustomPoolContexts[i]->GetCustomPool() == pool) + { + pBlockVectorDefragCtx = m_CustomPoolContexts[i]; + break; + } + } + + if(!pBlockVectorDefragCtx) + { + pBlockVectorDefragCtx = vma_new(m_hAllocator, VmaBlockVectorDefragmentationContext)( + m_hAllocator, + pool, + &pool->m_BlockVector, + m_CurrFrameIndex); + m_CustomPoolContexts.push_back(pBlockVectorDefragCtx); + } + + pBlockVectorDefragCtx->AddAll(); + } + } +} + +void VmaDefragmentationContext_T::AddAllocations( + uint32_t allocationCount, + const VmaAllocation* pAllocations, + VkBool32* pAllocationsChanged) +{ + // Dispatch pAllocations among defragmentators. Create them when necessary. + for(uint32_t allocIndex = 0; allocIndex < allocationCount; ++allocIndex) + { + const VmaAllocation hAlloc = pAllocations[allocIndex]; + VMA_ASSERT(hAlloc); + // DedicatedAlloc cannot be defragmented. + if((hAlloc->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK) && + // Lost allocation cannot be defragmented. + (hAlloc->GetLastUseFrameIndex() != VMA_FRAME_INDEX_LOST)) + { + VmaBlockVectorDefragmentationContext* pBlockVectorDefragCtx = VMA_NULL; + + const VmaPool hAllocPool = hAlloc->GetBlock()->GetParentPool(); + // This allocation belongs to custom pool. + if(hAllocPool != VK_NULL_HANDLE) + { + // Pools with algorithm other than default are not defragmented. + if(hAllocPool->m_BlockVector.GetAlgorithm() == 0) + { + for(size_t i = m_CustomPoolContexts.size(); i--; ) + { + if(m_CustomPoolContexts[i]->GetCustomPool() == hAllocPool) + { + pBlockVectorDefragCtx = m_CustomPoolContexts[i]; + break; + } + } + if(!pBlockVectorDefragCtx) + { + pBlockVectorDefragCtx = vma_new(m_hAllocator, VmaBlockVectorDefragmentationContext)( + m_hAllocator, + hAllocPool, + &hAllocPool->m_BlockVector, + m_CurrFrameIndex); + m_CustomPoolContexts.push_back(pBlockVectorDefragCtx); + } + } + } + // This allocation belongs to default pool. + else + { + const uint32_t memTypeIndex = hAlloc->GetMemoryTypeIndex(); + pBlockVectorDefragCtx = m_DefaultPoolContexts[memTypeIndex]; + if(!pBlockVectorDefragCtx) + { + pBlockVectorDefragCtx = vma_new(m_hAllocator, VmaBlockVectorDefragmentationContext)( + m_hAllocator, + VMA_NULL, // hCustomPool + m_hAllocator->m_pBlockVectors[memTypeIndex], + m_CurrFrameIndex); + m_DefaultPoolContexts[memTypeIndex] = pBlockVectorDefragCtx; + } + } + + if(pBlockVectorDefragCtx) + { + VkBool32* const pChanged = (pAllocationsChanged != VMA_NULL) ? + &pAllocationsChanged[allocIndex] : VMA_NULL; + pBlockVectorDefragCtx->AddAllocation(hAlloc, pChanged); + } + } + } +} + +VkResult VmaDefragmentationContext_T::Defragment( + VkDeviceSize maxCpuBytesToMove, uint32_t maxCpuAllocationsToMove, + VkDeviceSize maxGpuBytesToMove, uint32_t maxGpuAllocationsToMove, + VkCommandBuffer commandBuffer, VmaDefragmentationStats* pStats, VmaDefragmentationFlags flags) +{ + if(pStats) + { + memset(pStats, 0, sizeof(VmaDefragmentationStats)); + } + + if(flags & VMA_DEFRAGMENTATION_FLAG_INCREMENTAL) + { + // For incremental defragmetnations, we just earmark how much we can move + // The real meat is in the defragmentation steps + m_MaxCpuBytesToMove = maxCpuBytesToMove; + m_MaxCpuAllocationsToMove = maxCpuAllocationsToMove; + + m_MaxGpuBytesToMove = maxGpuBytesToMove; + m_MaxGpuAllocationsToMove = maxGpuAllocationsToMove; + + if(m_MaxCpuBytesToMove == 0 && m_MaxCpuAllocationsToMove == 0 && + m_MaxGpuBytesToMove == 0 && m_MaxGpuAllocationsToMove == 0) + return VK_SUCCESS; + + return VK_NOT_READY; + } + + if(commandBuffer == VK_NULL_HANDLE) + { + maxGpuBytesToMove = 0; + maxGpuAllocationsToMove = 0; + } + + VkResult res = VK_SUCCESS; + + // Process default pools. + for(uint32_t memTypeIndex = 0; + memTypeIndex < m_hAllocator->GetMemoryTypeCount() && res >= VK_SUCCESS; + ++memTypeIndex) + { + VmaBlockVectorDefragmentationContext* pBlockVectorCtx = m_DefaultPoolContexts[memTypeIndex]; + if(pBlockVectorCtx) + { + VMA_ASSERT(pBlockVectorCtx->GetBlockVector()); + pBlockVectorCtx->GetBlockVector()->Defragment( + pBlockVectorCtx, + pStats, flags, + maxCpuBytesToMove, maxCpuAllocationsToMove, + maxGpuBytesToMove, maxGpuAllocationsToMove, + commandBuffer); + if(pBlockVectorCtx->res != VK_SUCCESS) + { + res = pBlockVectorCtx->res; + } + } + } + + // Process custom pools. + for(size_t customCtxIndex = 0, customCtxCount = m_CustomPoolContexts.size(); + customCtxIndex < customCtxCount && res >= VK_SUCCESS; + ++customCtxIndex) + { + VmaBlockVectorDefragmentationContext* pBlockVectorCtx = m_CustomPoolContexts[customCtxIndex]; + VMA_ASSERT(pBlockVectorCtx && pBlockVectorCtx->GetBlockVector()); + pBlockVectorCtx->GetBlockVector()->Defragment( + pBlockVectorCtx, + pStats, flags, + maxCpuBytesToMove, maxCpuAllocationsToMove, + maxGpuBytesToMove, maxGpuAllocationsToMove, + commandBuffer); + if(pBlockVectorCtx->res != VK_SUCCESS) + { + res = pBlockVectorCtx->res; + } + } + + return res; +} + +VkResult VmaDefragmentationContext_T::DefragmentPassBegin(VmaDefragmentationPassInfo* pInfo) +{ + VmaDefragmentationPassMoveInfo* pCurrentMove = pInfo->pMoves; + uint32_t movesLeft = pInfo->moveCount; + + // Process default pools. + for(uint32_t memTypeIndex = 0; + memTypeIndex < m_hAllocator->GetMemoryTypeCount(); + ++memTypeIndex) + { + VmaBlockVectorDefragmentationContext *pBlockVectorCtx = m_DefaultPoolContexts[memTypeIndex]; + if(pBlockVectorCtx) + { + VMA_ASSERT(pBlockVectorCtx->GetBlockVector()); + + if(!pBlockVectorCtx->hasDefragmentationPlan) + { + pBlockVectorCtx->GetBlockVector()->Defragment( + pBlockVectorCtx, + m_pStats, m_Flags, + m_MaxCpuBytesToMove, m_MaxCpuAllocationsToMove, + m_MaxGpuBytesToMove, m_MaxGpuAllocationsToMove, + VK_NULL_HANDLE); + + if(pBlockVectorCtx->res < VK_SUCCESS) + continue; + + pBlockVectorCtx->hasDefragmentationPlan = true; + } + + const uint32_t processed = pBlockVectorCtx->GetBlockVector()->ProcessDefragmentations( + pBlockVectorCtx, + pCurrentMove, movesLeft); + + movesLeft -= processed; + pCurrentMove += processed; + } + } + + // Process custom pools. + for(size_t customCtxIndex = 0, customCtxCount = m_CustomPoolContexts.size(); + customCtxIndex < customCtxCount; + ++customCtxIndex) + { + VmaBlockVectorDefragmentationContext *pBlockVectorCtx = m_CustomPoolContexts[customCtxIndex]; + VMA_ASSERT(pBlockVectorCtx && pBlockVectorCtx->GetBlockVector()); + + if(!pBlockVectorCtx->hasDefragmentationPlan) + { + pBlockVectorCtx->GetBlockVector()->Defragment( + pBlockVectorCtx, + m_pStats, m_Flags, + m_MaxCpuBytesToMove, m_MaxCpuAllocationsToMove, + m_MaxGpuBytesToMove, m_MaxGpuAllocationsToMove, + VK_NULL_HANDLE); + + if(pBlockVectorCtx->res < VK_SUCCESS) + continue; + + pBlockVectorCtx->hasDefragmentationPlan = true; + } + + const uint32_t processed = pBlockVectorCtx->GetBlockVector()->ProcessDefragmentations( + pBlockVectorCtx, + pCurrentMove, movesLeft); + + movesLeft -= processed; + pCurrentMove += processed; + } + + pInfo->moveCount = pInfo->moveCount - movesLeft; + + return VK_SUCCESS; +} +VkResult VmaDefragmentationContext_T::DefragmentPassEnd() +{ + VkResult res = VK_SUCCESS; + + // Process default pools. + for(uint32_t memTypeIndex = 0; + memTypeIndex < m_hAllocator->GetMemoryTypeCount(); + ++memTypeIndex) + { + VmaBlockVectorDefragmentationContext *pBlockVectorCtx = m_DefaultPoolContexts[memTypeIndex]; + if(pBlockVectorCtx) + { + VMA_ASSERT(pBlockVectorCtx->GetBlockVector()); + + if(!pBlockVectorCtx->hasDefragmentationPlan) + { + res = VK_NOT_READY; + continue; + } + + pBlockVectorCtx->GetBlockVector()->CommitDefragmentations( + pBlockVectorCtx, m_pStats); + + if(pBlockVectorCtx->defragmentationMoves.size() != pBlockVectorCtx->defragmentationMovesCommitted) + res = VK_NOT_READY; + } + } + + // Process custom pools. + for(size_t customCtxIndex = 0, customCtxCount = m_CustomPoolContexts.size(); + customCtxIndex < customCtxCount; + ++customCtxIndex) + { + VmaBlockVectorDefragmentationContext *pBlockVectorCtx = m_CustomPoolContexts[customCtxIndex]; + VMA_ASSERT(pBlockVectorCtx && pBlockVectorCtx->GetBlockVector()); + + if(!pBlockVectorCtx->hasDefragmentationPlan) + { + res = VK_NOT_READY; + continue; + } + + pBlockVectorCtx->GetBlockVector()->CommitDefragmentations( + pBlockVectorCtx, m_pStats); + + if(pBlockVectorCtx->defragmentationMoves.size() != pBlockVectorCtx->defragmentationMovesCommitted) + res = VK_NOT_READY; + } + + return res; +} + +//////////////////////////////////////////////////////////////////////////////// +// VmaRecorder + +#if VMA_RECORDING_ENABLED + +VmaRecorder::VmaRecorder() : + m_UseMutex(true), + m_Flags(0), + m_File(VMA_NULL), + m_RecordingStartTime(std::chrono::high_resolution_clock::now()) +{ +} + +VkResult VmaRecorder::Init(const VmaRecordSettings& settings, bool useMutex) +{ + m_UseMutex = useMutex; + m_Flags = settings.flags; + +#if defined(_WIN32) + // Open file for writing. + errno_t err = fopen_s(&m_File, settings.pFilePath, "wb"); + + if(err != 0) + { + return VK_ERROR_INITIALIZATION_FAILED; + } +#else + // Open file for writing. + m_File = fopen(settings.pFilePath, "wb"); + + if(m_File == 0) + { + return VK_ERROR_INITIALIZATION_FAILED; + } +#endif + + // Write header. + fprintf(m_File, "%s\n", "Vulkan Memory Allocator,Calls recording"); + fprintf(m_File, "%s\n", "1,8"); + + return VK_SUCCESS; +} + +VmaRecorder::~VmaRecorder() +{ + if(m_File != VMA_NULL) + { + fclose(m_File); + } +} + +void VmaRecorder::RecordCreateAllocator(uint32_t frameIndex) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaCreateAllocator\n", callParams.threadId, callParams.time, frameIndex); + Flush(); +} + +void VmaRecorder::RecordDestroyAllocator(uint32_t frameIndex) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaDestroyAllocator\n", callParams.threadId, callParams.time, frameIndex); + Flush(); +} + +void VmaRecorder::RecordCreatePool(uint32_t frameIndex, const VmaPoolCreateInfo& createInfo, VmaPool pool) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaCreatePool,%u,%u,%llu,%llu,%llu,%u,%p\n", callParams.threadId, callParams.time, frameIndex, + createInfo.memoryTypeIndex, + createInfo.flags, + createInfo.blockSize, + (uint64_t)createInfo.minBlockCount, + (uint64_t)createInfo.maxBlockCount, + createInfo.frameInUseCount, + pool); + Flush(); +} + +void VmaRecorder::RecordDestroyPool(uint32_t frameIndex, VmaPool pool) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaDestroyPool,%p\n", callParams.threadId, callParams.time, frameIndex, + pool); + Flush(); +} + +void VmaRecorder::RecordAllocateMemory(uint32_t frameIndex, + const VkMemoryRequirements& vkMemReq, + const VmaAllocationCreateInfo& createInfo, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + UserDataString userDataStr(createInfo.flags, createInfo.pUserData); + fprintf(m_File, "%u,%.3f,%u,vmaAllocateMemory,%llu,%llu,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex, + vkMemReq.size, + vkMemReq.alignment, + vkMemReq.memoryTypeBits, + createInfo.flags, + createInfo.usage, + createInfo.requiredFlags, + createInfo.preferredFlags, + createInfo.memoryTypeBits, + createInfo.pool, + allocation, + userDataStr.GetString()); + Flush(); +} + +void VmaRecorder::RecordAllocateMemoryPages(uint32_t frameIndex, + const VkMemoryRequirements& vkMemReq, + const VmaAllocationCreateInfo& createInfo, + uint64_t allocationCount, + const VmaAllocation* pAllocations) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + UserDataString userDataStr(createInfo.flags, createInfo.pUserData); + fprintf(m_File, "%u,%.3f,%u,vmaAllocateMemoryPages,%llu,%llu,%u,%u,%u,%u,%u,%u,%p,", callParams.threadId, callParams.time, frameIndex, + vkMemReq.size, + vkMemReq.alignment, + vkMemReq.memoryTypeBits, + createInfo.flags, + createInfo.usage, + createInfo.requiredFlags, + createInfo.preferredFlags, + createInfo.memoryTypeBits, + createInfo.pool); + PrintPointerList(allocationCount, pAllocations); + fprintf(m_File, ",%s\n", userDataStr.GetString()); + Flush(); +} + +void VmaRecorder::RecordAllocateMemoryForBuffer(uint32_t frameIndex, + const VkMemoryRequirements& vkMemReq, + bool requiresDedicatedAllocation, + bool prefersDedicatedAllocation, + const VmaAllocationCreateInfo& createInfo, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + UserDataString userDataStr(createInfo.flags, createInfo.pUserData); + fprintf(m_File, "%u,%.3f,%u,vmaAllocateMemoryForBuffer,%llu,%llu,%u,%u,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex, + vkMemReq.size, + vkMemReq.alignment, + vkMemReq.memoryTypeBits, + requiresDedicatedAllocation ? 1 : 0, + prefersDedicatedAllocation ? 1 : 0, + createInfo.flags, + createInfo.usage, + createInfo.requiredFlags, + createInfo.preferredFlags, + createInfo.memoryTypeBits, + createInfo.pool, + allocation, + userDataStr.GetString()); + Flush(); +} + +void VmaRecorder::RecordAllocateMemoryForImage(uint32_t frameIndex, + const VkMemoryRequirements& vkMemReq, + bool requiresDedicatedAllocation, + bool prefersDedicatedAllocation, + const VmaAllocationCreateInfo& createInfo, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + UserDataString userDataStr(createInfo.flags, createInfo.pUserData); + fprintf(m_File, "%u,%.3f,%u,vmaAllocateMemoryForImage,%llu,%llu,%u,%u,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex, + vkMemReq.size, + vkMemReq.alignment, + vkMemReq.memoryTypeBits, + requiresDedicatedAllocation ? 1 : 0, + prefersDedicatedAllocation ? 1 : 0, + createInfo.flags, + createInfo.usage, + createInfo.requiredFlags, + createInfo.preferredFlags, + createInfo.memoryTypeBits, + createInfo.pool, + allocation, + userDataStr.GetString()); + Flush(); +} + +void VmaRecorder::RecordFreeMemory(uint32_t frameIndex, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaFreeMemory,%p\n", callParams.threadId, callParams.time, frameIndex, + allocation); + Flush(); +} + +void VmaRecorder::RecordFreeMemoryPages(uint32_t frameIndex, + uint64_t allocationCount, + const VmaAllocation* pAllocations) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaFreeMemoryPages,", callParams.threadId, callParams.time, frameIndex); + PrintPointerList(allocationCount, pAllocations); + fprintf(m_File, "\n"); + Flush(); +} + +void VmaRecorder::RecordSetAllocationUserData(uint32_t frameIndex, + VmaAllocation allocation, + const void* pUserData) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + UserDataString userDataStr( + allocation->IsUserDataString() ? VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT : 0, + pUserData); + fprintf(m_File, "%u,%.3f,%u,vmaSetAllocationUserData,%p,%s\n", callParams.threadId, callParams.time, frameIndex, + allocation, + userDataStr.GetString()); + Flush(); +} + +void VmaRecorder::RecordCreateLostAllocation(uint32_t frameIndex, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaCreateLostAllocation,%p\n", callParams.threadId, callParams.time, frameIndex, + allocation); + Flush(); +} + +void VmaRecorder::RecordMapMemory(uint32_t frameIndex, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaMapMemory,%p\n", callParams.threadId, callParams.time, frameIndex, + allocation); + Flush(); +} + +void VmaRecorder::RecordUnmapMemory(uint32_t frameIndex, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaUnmapMemory,%p\n", callParams.threadId, callParams.time, frameIndex, + allocation); + Flush(); +} + +void VmaRecorder::RecordFlushAllocation(uint32_t frameIndex, + VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaFlushAllocation,%p,%llu,%llu\n", callParams.threadId, callParams.time, frameIndex, + allocation, + offset, + size); + Flush(); +} + +void VmaRecorder::RecordInvalidateAllocation(uint32_t frameIndex, + VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaInvalidateAllocation,%p,%llu,%llu\n", callParams.threadId, callParams.time, frameIndex, + allocation, + offset, + size); + Flush(); +} + +void VmaRecorder::RecordCreateBuffer(uint32_t frameIndex, + const VkBufferCreateInfo& bufCreateInfo, + const VmaAllocationCreateInfo& allocCreateInfo, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + UserDataString userDataStr(allocCreateInfo.flags, allocCreateInfo.pUserData); + fprintf(m_File, "%u,%.3f,%u,vmaCreateBuffer,%u,%llu,%u,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex, + bufCreateInfo.flags, + bufCreateInfo.size, + bufCreateInfo.usage, + bufCreateInfo.sharingMode, + allocCreateInfo.flags, + allocCreateInfo.usage, + allocCreateInfo.requiredFlags, + allocCreateInfo.preferredFlags, + allocCreateInfo.memoryTypeBits, + allocCreateInfo.pool, + allocation, + userDataStr.GetString()); + Flush(); +} + +void VmaRecorder::RecordCreateImage(uint32_t frameIndex, + const VkImageCreateInfo& imageCreateInfo, + const VmaAllocationCreateInfo& allocCreateInfo, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + UserDataString userDataStr(allocCreateInfo.flags, allocCreateInfo.pUserData); + fprintf(m_File, "%u,%.3f,%u,vmaCreateImage,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%p,%p,%s\n", callParams.threadId, callParams.time, frameIndex, + imageCreateInfo.flags, + imageCreateInfo.imageType, + imageCreateInfo.format, + imageCreateInfo.extent.width, + imageCreateInfo.extent.height, + imageCreateInfo.extent.depth, + imageCreateInfo.mipLevels, + imageCreateInfo.arrayLayers, + imageCreateInfo.samples, + imageCreateInfo.tiling, + imageCreateInfo.usage, + imageCreateInfo.sharingMode, + imageCreateInfo.initialLayout, + allocCreateInfo.flags, + allocCreateInfo.usage, + allocCreateInfo.requiredFlags, + allocCreateInfo.preferredFlags, + allocCreateInfo.memoryTypeBits, + allocCreateInfo.pool, + allocation, + userDataStr.GetString()); + Flush(); +} + +void VmaRecorder::RecordDestroyBuffer(uint32_t frameIndex, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaDestroyBuffer,%p\n", callParams.threadId, callParams.time, frameIndex, + allocation); + Flush(); +} + +void VmaRecorder::RecordDestroyImage(uint32_t frameIndex, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaDestroyImage,%p\n", callParams.threadId, callParams.time, frameIndex, + allocation); + Flush(); +} + +void VmaRecorder::RecordTouchAllocation(uint32_t frameIndex, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaTouchAllocation,%p\n", callParams.threadId, callParams.time, frameIndex, + allocation); + Flush(); +} + +void VmaRecorder::RecordGetAllocationInfo(uint32_t frameIndex, + VmaAllocation allocation) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaGetAllocationInfo,%p\n", callParams.threadId, callParams.time, frameIndex, + allocation); + Flush(); +} + +void VmaRecorder::RecordMakePoolAllocationsLost(uint32_t frameIndex, + VmaPool pool) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaMakePoolAllocationsLost,%p\n", callParams.threadId, callParams.time, frameIndex, + pool); + Flush(); +} + +void VmaRecorder::RecordDefragmentationBegin(uint32_t frameIndex, + const VmaDefragmentationInfo2& info, + VmaDefragmentationContext ctx) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaDefragmentationBegin,%u,", callParams.threadId, callParams.time, frameIndex, + info.flags); + PrintPointerList(info.allocationCount, info.pAllocations); + fprintf(m_File, ","); + PrintPointerList(info.poolCount, info.pPools); + fprintf(m_File, ",%llu,%u,%llu,%u,%p,%p\n", + info.maxCpuBytesToMove, + info.maxCpuAllocationsToMove, + info.maxGpuBytesToMove, + info.maxGpuAllocationsToMove, + info.commandBuffer, + ctx); + Flush(); +} + +void VmaRecorder::RecordDefragmentationEnd(uint32_t frameIndex, + VmaDefragmentationContext ctx) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaDefragmentationEnd,%p\n", callParams.threadId, callParams.time, frameIndex, + ctx); + Flush(); +} + +void VmaRecorder::RecordSetPoolName(uint32_t frameIndex, + VmaPool pool, + const char* name) +{ + CallParams callParams; + GetBasicParams(callParams); + + VmaMutexLock lock(m_FileMutex, m_UseMutex); + fprintf(m_File, "%u,%.3f,%u,vmaSetPoolName,%p,%s\n", callParams.threadId, callParams.time, frameIndex, + pool, name != VMA_NULL ? name : ""); + Flush(); +} + +VmaRecorder::UserDataString::UserDataString(VmaAllocationCreateFlags allocFlags, const void* pUserData) +{ + if(pUserData != VMA_NULL) + { + if((allocFlags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0) + { + m_Str = (const char*)pUserData; + } + else + { + // If VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT is not specified, convert the string's memory address to a string and store it. + snprintf(m_PtrStr, 17, "%p", pUserData); + m_Str = m_PtrStr; + } + } + else + { + m_Str = ""; + } +} + +void VmaRecorder::WriteConfiguration( + const VkPhysicalDeviceProperties& devProps, + const VkPhysicalDeviceMemoryProperties& memProps, + uint32_t vulkanApiVersion, + bool dedicatedAllocationExtensionEnabled, + bool bindMemory2ExtensionEnabled, + bool memoryBudgetExtensionEnabled, + bool deviceCoherentMemoryExtensionEnabled) +{ + fprintf(m_File, "Config,Begin\n"); + + fprintf(m_File, "VulkanApiVersion,%u,%u\n", VK_VERSION_MAJOR(vulkanApiVersion), VK_VERSION_MINOR(vulkanApiVersion)); + + fprintf(m_File, "PhysicalDevice,apiVersion,%u\n", devProps.apiVersion); + fprintf(m_File, "PhysicalDevice,driverVersion,%u\n", devProps.driverVersion); + fprintf(m_File, "PhysicalDevice,vendorID,%u\n", devProps.vendorID); + fprintf(m_File, "PhysicalDevice,deviceID,%u\n", devProps.deviceID); + fprintf(m_File, "PhysicalDevice,deviceType,%u\n", devProps.deviceType); + fprintf(m_File, "PhysicalDevice,deviceName,%s\n", devProps.deviceName); + + fprintf(m_File, "PhysicalDeviceLimits,maxMemoryAllocationCount,%u\n", devProps.limits.maxMemoryAllocationCount); + fprintf(m_File, "PhysicalDeviceLimits,bufferImageGranularity,%llu\n", devProps.limits.bufferImageGranularity); + fprintf(m_File, "PhysicalDeviceLimits,nonCoherentAtomSize,%llu\n", devProps.limits.nonCoherentAtomSize); + + fprintf(m_File, "PhysicalDeviceMemory,HeapCount,%u\n", memProps.memoryHeapCount); + for(uint32_t i = 0; i < memProps.memoryHeapCount; ++i) + { + fprintf(m_File, "PhysicalDeviceMemory,Heap,%u,size,%llu\n", i, memProps.memoryHeaps[i].size); + fprintf(m_File, "PhysicalDeviceMemory,Heap,%u,flags,%u\n", i, memProps.memoryHeaps[i].flags); + } + fprintf(m_File, "PhysicalDeviceMemory,TypeCount,%u\n", memProps.memoryTypeCount); + for(uint32_t i = 0; i < memProps.memoryTypeCount; ++i) + { + fprintf(m_File, "PhysicalDeviceMemory,Type,%u,heapIndex,%u\n", i, memProps.memoryTypes[i].heapIndex); + fprintf(m_File, "PhysicalDeviceMemory,Type,%u,propertyFlags,%u\n", i, memProps.memoryTypes[i].propertyFlags); + } + + fprintf(m_File, "Extension,VK_KHR_dedicated_allocation,%u\n", dedicatedAllocationExtensionEnabled ? 1 : 0); + fprintf(m_File, "Extension,VK_KHR_bind_memory2,%u\n", bindMemory2ExtensionEnabled ? 1 : 0); + fprintf(m_File, "Extension,VK_EXT_memory_budget,%u\n", memoryBudgetExtensionEnabled ? 1 : 0); + fprintf(m_File, "Extension,VK_AMD_device_coherent_memory,%u\n", deviceCoherentMemoryExtensionEnabled ? 1 : 0); + + fprintf(m_File, "Macro,VMA_DEBUG_ALWAYS_DEDICATED_MEMORY,%u\n", VMA_DEBUG_ALWAYS_DEDICATED_MEMORY ? 1 : 0); + fprintf(m_File, "Macro,VMA_MIN_ALIGNMENT,%llu\n", (VkDeviceSize)VMA_MIN_ALIGNMENT); + fprintf(m_File, "Macro,VMA_DEBUG_MARGIN,%llu\n", (VkDeviceSize)VMA_DEBUG_MARGIN); + fprintf(m_File, "Macro,VMA_DEBUG_INITIALIZE_ALLOCATIONS,%u\n", VMA_DEBUG_INITIALIZE_ALLOCATIONS ? 1 : 0); + fprintf(m_File, "Macro,VMA_DEBUG_DETECT_CORRUPTION,%u\n", VMA_DEBUG_DETECT_CORRUPTION ? 1 : 0); + fprintf(m_File, "Macro,VMA_DEBUG_GLOBAL_MUTEX,%u\n", VMA_DEBUG_GLOBAL_MUTEX ? 1 : 0); + fprintf(m_File, "Macro,VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY,%llu\n", (VkDeviceSize)VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY); + fprintf(m_File, "Macro,VMA_SMALL_HEAP_MAX_SIZE,%llu\n", (VkDeviceSize)VMA_SMALL_HEAP_MAX_SIZE); + fprintf(m_File, "Macro,VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE,%llu\n", (VkDeviceSize)VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE); + + fprintf(m_File, "Config,End\n"); +} + +void VmaRecorder::GetBasicParams(CallParams& outParams) +{ + #if defined(_WIN32) + outParams.threadId = GetCurrentThreadId(); + #else + // Use C++11 features to get thread id and convert it to uint32_t. + // There is room for optimization since sstream is quite slow. + // Is there a better way to convert std::this_thread::get_id() to uint32_t? + std::thread::id thread_id = std::this_thread::get_id(); + std::stringstream thread_id_to_string_converter; + thread_id_to_string_converter << thread_id; + std::string thread_id_as_string = thread_id_to_string_converter.str(); + outParams.threadId = static_cast(std::stoi(thread_id_as_string.c_str())); + #endif + + auto current_time = std::chrono::high_resolution_clock::now(); + + outParams.time = std::chrono::duration(current_time - m_RecordingStartTime).count(); +} + +void VmaRecorder::PrintPointerList(uint64_t count, const VmaAllocation* pItems) +{ + if(count) + { + fprintf(m_File, "%p", pItems[0]); + for(uint64_t i = 1; i < count; ++i) + { + fprintf(m_File, " %p", pItems[i]); + } + } +} + +void VmaRecorder::Flush() +{ + if((m_Flags & VMA_RECORD_FLUSH_AFTER_CALL_BIT) != 0) + { + fflush(m_File); + } +} + +#endif // #if VMA_RECORDING_ENABLED + +//////////////////////////////////////////////////////////////////////////////// +// VmaAllocationObjectAllocator + +VmaAllocationObjectAllocator::VmaAllocationObjectAllocator(const VkAllocationCallbacks* pAllocationCallbacks) : + m_Allocator(pAllocationCallbacks, 1024) +{ +} + +template VmaAllocation VmaAllocationObjectAllocator::Allocate(Types&&... args) +{ + VmaMutexLock mutexLock(m_Mutex); + return m_Allocator.Alloc(std::forward(args)...); +} + +void VmaAllocationObjectAllocator::Free(VmaAllocation hAlloc) +{ + VmaMutexLock mutexLock(m_Mutex); + m_Allocator.Free(hAlloc); +} + //////////////////////////////////////////////////////////////////////////////// // VmaAllocator_T VmaAllocator_T::VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo) : m_UseMutex((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT) == 0), + m_VulkanApiVersion(pCreateInfo->vulkanApiVersion != 0 ? pCreateInfo->vulkanApiVersion : VK_API_VERSION_1_0), m_UseKhrDedicatedAllocation((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT) != 0), + m_UseKhrBindMemory2((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT) != 0), + m_UseExtMemoryBudget((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_EXT_MEMORY_BUDGET_BIT) != 0), + m_UseAmdDeviceCoherentMemory((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_AMD_DEVICE_COHERENT_MEMORY_BIT) != 0), + m_UseKhrBufferDeviceAddress((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT) != 0), + m_UseExtMemoryPriority((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT) != 0), m_hDevice(pCreateInfo->device), + m_hInstance(pCreateInfo->instance), m_AllocationCallbacksSpecified(pCreateInfo->pAllocationCallbacks != VMA_NULL), m_AllocationCallbacks(pCreateInfo->pAllocationCallbacks ? *pCreateInfo->pAllocationCallbacks : VmaEmptyAllocationCallbacks), + m_AllocationObjectAllocator(&m_AllocationCallbacks), + m_HeapSizeLimitMask(0), + m_DeviceMemoryCount(0), m_PreferredLargeHeapBlockSize(0), m_PhysicalDevice(pCreateInfo->physicalDevice), m_CurrentFrameIndex(0), - m_Pools(VmaStlAllocator(GetAllocationCallbacks())) + m_GpuDefragmentationMemoryTypeBits(UINT32_MAX), + m_NextPoolId(0), + m_GlobalMemoryTypeBits(UINT32_MAX) +#if VMA_RECORDING_ENABLED + ,m_pRecorder(VMA_NULL) +#endif { - VMA_ASSERT(pCreateInfo->physicalDevice && pCreateInfo->device); + if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0)) + { + m_UseKhrDedicatedAllocation = false; + m_UseKhrBindMemory2 = false; + } + + if(VMA_DEBUG_DETECT_CORRUPTION) + { + // Needs to be multiply of uint32_t size because we are going to write VMA_CORRUPTION_DETECTION_MAGIC_VALUE to it. + VMA_ASSERT(VMA_DEBUG_MARGIN % sizeof(uint32_t) == 0); + } + + VMA_ASSERT(pCreateInfo->physicalDevice && pCreateInfo->device && pCreateInfo->instance); + + if(m_VulkanApiVersion < VK_MAKE_VERSION(1, 1, 0)) + { +#if !(VMA_DEDICATED_ALLOCATION) + if((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT) != 0) + { + VMA_ASSERT(0 && "VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT set but required extensions are disabled by preprocessor macros."); + } +#endif +#if !(VMA_BIND_MEMORY2) + if((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT) != 0) + { + VMA_ASSERT(0 && "VMA_ALLOCATOR_CREATE_KHR_BIND_MEMORY2_BIT set but required extension is disabled by preprocessor macros."); + } +#endif + } +#if !(VMA_MEMORY_BUDGET) + if((pCreateInfo->flags & VMA_ALLOCATOR_CREATE_EXT_MEMORY_BUDGET_BIT) != 0) + { + VMA_ASSERT(0 && "VMA_ALLOCATOR_CREATE_EXT_MEMORY_BUDGET_BIT set but required extension is disabled by preprocessor macros."); + } +#endif +#if !(VMA_BUFFER_DEVICE_ADDRESS) + if(m_UseKhrBufferDeviceAddress) + { + VMA_ASSERT(0 && "VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT is set but required extension or Vulkan 1.2 is not available in your Vulkan header or its support in VMA has been disabled by a preprocessor macro."); + } +#endif +#if VMA_VULKAN_VERSION < 1002000 + if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 2, 0)) + { + VMA_ASSERT(0 && "vulkanApiVersion >= VK_API_VERSION_1_2 but required Vulkan version is disabled by preprocessor macros."); + } +#endif +#if VMA_VULKAN_VERSION < 1001000 + if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0)) + { + VMA_ASSERT(0 && "vulkanApiVersion >= VK_API_VERSION_1_1 but required Vulkan version is disabled by preprocessor macros."); + } +#endif +#if !(VMA_MEMORY_PRIORITY) + if(m_UseExtMemoryPriority) + { + VMA_ASSERT(0 && "VMA_ALLOCATOR_CREATE_EXT_MEMORY_PRIORITY_BIT is set but required extension is not available in your Vulkan header or its support in VMA has been disabled by a preprocessor macro."); + } +#endif memset(&m_DeviceMemoryCallbacks, 0 ,sizeof(m_DeviceMemoryCallbacks)); - memset(&m_MemProps, 0, sizeof(m_MemProps)); memset(&m_PhysicalDeviceProperties, 0, sizeof(m_PhysicalDeviceProperties)); - - memset(&m_pBlockVectors, 0, sizeof(m_pBlockVectors)); - memset(&m_pDedicatedAllocations, 0, sizeof(m_pDedicatedAllocations)); + memset(&m_MemProps, 0, sizeof(m_MemProps)); - for(uint32_t i = 0; i < VK_MAX_MEMORY_HEAPS; ++i) - { - m_HeapSizeLimit[i] = VK_WHOLE_SIZE; - } + memset(&m_pBlockVectors, 0, sizeof(m_pBlockVectors)); + memset(&m_VulkanFunctions, 0, sizeof(m_VulkanFunctions)); + +#if VMA_EXTERNAL_MEMORY + memset(&m_TypeExternalMemoryHandleTypes, 0, sizeof(m_TypeExternalMemoryHandleTypes)); +#endif // #if VMA_EXTERNAL_MEMORY if(pCreateInfo->pDeviceMemoryCallbacks != VMA_NULL) { + m_DeviceMemoryCallbacks.pUserData = pCreateInfo->pDeviceMemoryCallbacks->pUserData; m_DeviceMemoryCallbacks.pfnAllocate = pCreateInfo->pDeviceMemoryCallbacks->pfnAllocate; m_DeviceMemoryCallbacks.pfnFree = pCreateInfo->pDeviceMemoryCallbacks->pfnFree; } @@ -7409,9 +14285,24 @@ VmaAllocator_T::VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo) : (*m_VulkanFunctions.vkGetPhysicalDeviceProperties)(m_PhysicalDevice, &m_PhysicalDeviceProperties); (*m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties)(m_PhysicalDevice, &m_MemProps); + VMA_ASSERT(VmaIsPow2(VMA_MIN_ALIGNMENT)); + VMA_ASSERT(VmaIsPow2(VMA_DEBUG_MIN_BUFFER_IMAGE_GRANULARITY)); + VMA_ASSERT(VmaIsPow2(m_PhysicalDeviceProperties.limits.bufferImageGranularity)); + VMA_ASSERT(VmaIsPow2(m_PhysicalDeviceProperties.limits.nonCoherentAtomSize)); + m_PreferredLargeHeapBlockSize = (pCreateInfo->preferredLargeHeapBlockSize != 0) ? pCreateInfo->preferredLargeHeapBlockSize : static_cast(VMA_DEFAULT_LARGE_HEAP_BLOCK_SIZE); + m_GlobalMemoryTypeBits = CalculateGlobalMemoryTypeBits(); + +#if VMA_EXTERNAL_MEMORY + if(pCreateInfo->pTypeExternalMemoryHandleTypes != VMA_NULL) + { + memcpy(m_TypeExternalMemoryHandleTypes, pCreateInfo->pTypeExternalMemoryHandleTypes, + sizeof(VkExternalMemoryHandleTypeFlagsKHR) * GetMemoryTypeCount()); + } +#endif // #if VMA_EXTERNAL_MEMORY + if(pCreateInfo->pHeapSizeLimit != VMA_NULL) { for(uint32_t heapIndex = 0; heapIndex < GetMemoryHeapCount(); ++heapIndex) @@ -7419,7 +14310,7 @@ VmaAllocator_T::VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo) : const VkDeviceSize limit = pCreateInfo->pHeapSizeLimit[heapIndex]; if(limit != VK_WHOLE_SIZE) { - m_HeapSizeLimit[heapIndex] = limit; + m_HeapSizeLimitMask |= 1u << heapIndex; if(limit < m_MemProps.memoryHeaps[heapIndex].size) { m_MemProps.memoryHeaps[heapIndex].size = limit; @@ -7434,89 +14325,264 @@ VmaAllocator_T::VmaAllocator_T(const VmaAllocatorCreateInfo* pCreateInfo) : m_pBlockVectors[memTypeIndex] = vma_new(this, VmaBlockVector)( this, + VK_NULL_HANDLE, // hParentPool memTypeIndex, preferredBlockSize, 0, SIZE_MAX, GetBufferImageGranularity(), pCreateInfo->frameInUseCount, - false); // isCustomPool + false, // explicitBlockSize + false, // linearAlgorithm + 0.5f, // priority (0.5 is the default per Vulkan spec) + GetMemoryTypeMinAlignment(memTypeIndex), // minAllocationAlignment + VMA_NULL); // // pMemoryAllocateNext // No need to call m_pBlockVectors[memTypeIndex][blockVectorTypeIndex]->CreateMinBlocks here, // becase minBlockCount is 0. - m_pDedicatedAllocations[memTypeIndex] = vma_new(this, AllocationVectorType)(VmaStlAllocator(GetAllocationCallbacks())); } } +VkResult VmaAllocator_T::Init(const VmaAllocatorCreateInfo* pCreateInfo) +{ + VkResult res = VK_SUCCESS; + + if(pCreateInfo->pRecordSettings != VMA_NULL && + !VmaStrIsEmpty(pCreateInfo->pRecordSettings->pFilePath)) + { +#if VMA_RECORDING_ENABLED + m_pRecorder = vma_new(this, VmaRecorder)(); + res = m_pRecorder->Init(*pCreateInfo->pRecordSettings, m_UseMutex); + if(res != VK_SUCCESS) + { + return res; + } + m_pRecorder->WriteConfiguration( + m_PhysicalDeviceProperties, + m_MemProps, + m_VulkanApiVersion, + m_UseKhrDedicatedAllocation, + m_UseKhrBindMemory2, + m_UseExtMemoryBudget, + m_UseAmdDeviceCoherentMemory); + m_pRecorder->RecordCreateAllocator(GetCurrentFrameIndex()); +#else + VMA_ASSERT(0 && "VmaAllocatorCreateInfo::pRecordSettings used, but not supported due to VMA_RECORDING_ENABLED not defined to 1."); + return VK_ERROR_FEATURE_NOT_PRESENT; +#endif + } + +#if VMA_MEMORY_BUDGET + if(m_UseExtMemoryBudget) + { + UpdateVulkanBudget(); + } +#endif // #if VMA_MEMORY_BUDGET + + return res; +} + VmaAllocator_T::~VmaAllocator_T() { - VMA_ASSERT(m_Pools.empty()); - - for(size_t i = GetMemoryTypeCount(); i--; ) +#if VMA_RECORDING_ENABLED + if(m_pRecorder != VMA_NULL) { - vma_delete(this, m_pDedicatedAllocations[i]); - vma_delete(this, m_pBlockVectors[i]); + m_pRecorder->RecordDestroyAllocator(GetCurrentFrameIndex()); + vma_delete(this, m_pRecorder); + } +#endif + + VMA_ASSERT(m_Pools.IsEmpty()); + + for(size_t memTypeIndex = GetMemoryTypeCount(); memTypeIndex--; ) + { + if(!m_DedicatedAllocations[memTypeIndex].IsEmpty()) + { + VMA_ASSERT(0 && "Unfreed dedicated allocations found."); + } + + vma_delete(this, m_pBlockVectors[memTypeIndex]); } } void VmaAllocator_T::ImportVulkanFunctions(const VmaVulkanFunctions* pVulkanFunctions) { #if VMA_STATIC_VULKAN_FUNCTIONS == 1 - m_VulkanFunctions.vkGetPhysicalDeviceProperties = vkGetPhysicalDeviceProperties; - m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties = vkGetPhysicalDeviceMemoryProperties; - m_VulkanFunctions.vkAllocateMemory = vkAllocateMemory; - m_VulkanFunctions.vkFreeMemory = vkFreeMemory; - m_VulkanFunctions.vkMapMemory = vkMapMemory; - m_VulkanFunctions.vkUnmapMemory = vkUnmapMemory; - m_VulkanFunctions.vkBindBufferMemory = vkBindBufferMemory; - m_VulkanFunctions.vkBindImageMemory = vkBindImageMemory; - m_VulkanFunctions.vkGetBufferMemoryRequirements = vkGetBufferMemoryRequirements; - m_VulkanFunctions.vkGetImageMemoryRequirements = vkGetImageMemoryRequirements; - m_VulkanFunctions.vkCreateBuffer = vkCreateBuffer; - m_VulkanFunctions.vkDestroyBuffer = vkDestroyBuffer; - m_VulkanFunctions.vkCreateImage = vkCreateImage; - m_VulkanFunctions.vkDestroyImage = vkDestroyImage; - if(m_UseKhrDedicatedAllocation) + ImportVulkanFunctions_Static(); +#endif + + if(pVulkanFunctions != VMA_NULL) { - m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR = - (PFN_vkGetBufferMemoryRequirements2KHR)vkGetDeviceProcAddr(m_hDevice, "vkGetBufferMemoryRequirements2KHR"); - m_VulkanFunctions.vkGetImageMemoryRequirements2KHR = - (PFN_vkGetImageMemoryRequirements2KHR)vkGetDeviceProcAddr(m_hDevice, "vkGetImageMemoryRequirements2KHR"); + ImportVulkanFunctions_Custom(pVulkanFunctions); } + +#if VMA_DYNAMIC_VULKAN_FUNCTIONS == 1 + ImportVulkanFunctions_Dynamic(); +#endif + + ValidateVulkanFunctions(); +} + +#if VMA_STATIC_VULKAN_FUNCTIONS == 1 + +void VmaAllocator_T::ImportVulkanFunctions_Static() +{ + // Vulkan 1.0 + m_VulkanFunctions.vkGetPhysicalDeviceProperties = (PFN_vkGetPhysicalDeviceProperties)vkGetPhysicalDeviceProperties; + m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties = (PFN_vkGetPhysicalDeviceMemoryProperties)vkGetPhysicalDeviceMemoryProperties; + m_VulkanFunctions.vkAllocateMemory = (PFN_vkAllocateMemory)vkAllocateMemory; + m_VulkanFunctions.vkFreeMemory = (PFN_vkFreeMemory)vkFreeMemory; + m_VulkanFunctions.vkMapMemory = (PFN_vkMapMemory)vkMapMemory; + m_VulkanFunctions.vkUnmapMemory = (PFN_vkUnmapMemory)vkUnmapMemory; + m_VulkanFunctions.vkFlushMappedMemoryRanges = (PFN_vkFlushMappedMemoryRanges)vkFlushMappedMemoryRanges; + m_VulkanFunctions.vkInvalidateMappedMemoryRanges = (PFN_vkInvalidateMappedMemoryRanges)vkInvalidateMappedMemoryRanges; + m_VulkanFunctions.vkBindBufferMemory = (PFN_vkBindBufferMemory)vkBindBufferMemory; + m_VulkanFunctions.vkBindImageMemory = (PFN_vkBindImageMemory)vkBindImageMemory; + m_VulkanFunctions.vkGetBufferMemoryRequirements = (PFN_vkGetBufferMemoryRequirements)vkGetBufferMemoryRequirements; + m_VulkanFunctions.vkGetImageMemoryRequirements = (PFN_vkGetImageMemoryRequirements)vkGetImageMemoryRequirements; + m_VulkanFunctions.vkCreateBuffer = (PFN_vkCreateBuffer)vkCreateBuffer; + m_VulkanFunctions.vkDestroyBuffer = (PFN_vkDestroyBuffer)vkDestroyBuffer; + m_VulkanFunctions.vkCreateImage = (PFN_vkCreateImage)vkCreateImage; + m_VulkanFunctions.vkDestroyImage = (PFN_vkDestroyImage)vkDestroyImage; + m_VulkanFunctions.vkCmdCopyBuffer = (PFN_vkCmdCopyBuffer)vkCmdCopyBuffer; + + // Vulkan 1.1 +#if VMA_VULKAN_VERSION >= 1001000 + if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0)) + { + m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR = (PFN_vkGetBufferMemoryRequirements2)vkGetBufferMemoryRequirements2; + m_VulkanFunctions.vkGetImageMemoryRequirements2KHR = (PFN_vkGetImageMemoryRequirements2)vkGetImageMemoryRequirements2; + m_VulkanFunctions.vkBindBufferMemory2KHR = (PFN_vkBindBufferMemory2)vkBindBufferMemory2; + m_VulkanFunctions.vkBindImageMemory2KHR = (PFN_vkBindImageMemory2)vkBindImageMemory2; + m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties2KHR = (PFN_vkGetPhysicalDeviceMemoryProperties2)vkGetPhysicalDeviceMemoryProperties2; + } +#endif +} + #endif // #if VMA_STATIC_VULKAN_FUNCTIONS == 1 +void VmaAllocator_T::ImportVulkanFunctions_Custom(const VmaVulkanFunctions* pVulkanFunctions) +{ + VMA_ASSERT(pVulkanFunctions != VMA_NULL); + #define VMA_COPY_IF_NOT_NULL(funcName) \ if(pVulkanFunctions->funcName != VMA_NULL) m_VulkanFunctions.funcName = pVulkanFunctions->funcName; - if(pVulkanFunctions != VMA_NULL) - { - VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceProperties); - VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceMemoryProperties); - VMA_COPY_IF_NOT_NULL(vkAllocateMemory); - VMA_COPY_IF_NOT_NULL(vkFreeMemory); - VMA_COPY_IF_NOT_NULL(vkMapMemory); - VMA_COPY_IF_NOT_NULL(vkUnmapMemory); - VMA_COPY_IF_NOT_NULL(vkBindBufferMemory); - VMA_COPY_IF_NOT_NULL(vkBindImageMemory); - VMA_COPY_IF_NOT_NULL(vkGetBufferMemoryRequirements); - VMA_COPY_IF_NOT_NULL(vkGetImageMemoryRequirements); - VMA_COPY_IF_NOT_NULL(vkCreateBuffer); - VMA_COPY_IF_NOT_NULL(vkDestroyBuffer); - VMA_COPY_IF_NOT_NULL(vkCreateImage); - VMA_COPY_IF_NOT_NULL(vkDestroyImage); - VMA_COPY_IF_NOT_NULL(vkGetBufferMemoryRequirements2KHR); - VMA_COPY_IF_NOT_NULL(vkGetImageMemoryRequirements2KHR); - } + VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceProperties); + VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceMemoryProperties); + VMA_COPY_IF_NOT_NULL(vkAllocateMemory); + VMA_COPY_IF_NOT_NULL(vkFreeMemory); + VMA_COPY_IF_NOT_NULL(vkMapMemory); + VMA_COPY_IF_NOT_NULL(vkUnmapMemory); + VMA_COPY_IF_NOT_NULL(vkFlushMappedMemoryRanges); + VMA_COPY_IF_NOT_NULL(vkInvalidateMappedMemoryRanges); + VMA_COPY_IF_NOT_NULL(vkBindBufferMemory); + VMA_COPY_IF_NOT_NULL(vkBindImageMemory); + VMA_COPY_IF_NOT_NULL(vkGetBufferMemoryRequirements); + VMA_COPY_IF_NOT_NULL(vkGetImageMemoryRequirements); + VMA_COPY_IF_NOT_NULL(vkCreateBuffer); + VMA_COPY_IF_NOT_NULL(vkDestroyBuffer); + VMA_COPY_IF_NOT_NULL(vkCreateImage); + VMA_COPY_IF_NOT_NULL(vkDestroyImage); + VMA_COPY_IF_NOT_NULL(vkCmdCopyBuffer); + +#if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000 + VMA_COPY_IF_NOT_NULL(vkGetBufferMemoryRequirements2KHR); + VMA_COPY_IF_NOT_NULL(vkGetImageMemoryRequirements2KHR); +#endif + +#if VMA_BIND_MEMORY2 || VMA_VULKAN_VERSION >= 1001000 + VMA_COPY_IF_NOT_NULL(vkBindBufferMemory2KHR); + VMA_COPY_IF_NOT_NULL(vkBindImageMemory2KHR); +#endif + +#if VMA_MEMORY_BUDGET + VMA_COPY_IF_NOT_NULL(vkGetPhysicalDeviceMemoryProperties2KHR); +#endif #undef VMA_COPY_IF_NOT_NULL +} - // If these asserts are hit, you must either #define VMA_STATIC_VULKAN_FUNCTIONS 1 - // or pass valid pointers as VmaAllocatorCreateInfo::pVulkanFunctions. +#if VMA_DYNAMIC_VULKAN_FUNCTIONS == 1 + +void VmaAllocator_T::ImportVulkanFunctions_Dynamic() +{ +#define VMA_FETCH_INSTANCE_FUNC(memberName, functionPointerType, functionNameString) \ + if(m_VulkanFunctions.memberName == VMA_NULL) \ + m_VulkanFunctions.memberName = \ + (functionPointerType)vkGetInstanceProcAddr(m_hInstance, functionNameString); +#define VMA_FETCH_DEVICE_FUNC(memberName, functionPointerType, functionNameString) \ + if(m_VulkanFunctions.memberName == VMA_NULL) \ + m_VulkanFunctions.memberName = \ + (functionPointerType)vkGetDeviceProcAddr(m_hDevice, functionNameString); + + VMA_FETCH_INSTANCE_FUNC(vkGetPhysicalDeviceProperties, PFN_vkGetPhysicalDeviceProperties, "vkGetPhysicalDeviceProperties"); + VMA_FETCH_INSTANCE_FUNC(vkGetPhysicalDeviceMemoryProperties, PFN_vkGetPhysicalDeviceMemoryProperties, "vkGetPhysicalDeviceMemoryProperties"); + VMA_FETCH_DEVICE_FUNC(vkAllocateMemory, PFN_vkAllocateMemory, "vkAllocateMemory"); + VMA_FETCH_DEVICE_FUNC(vkFreeMemory, PFN_vkFreeMemory, "vkFreeMemory"); + VMA_FETCH_DEVICE_FUNC(vkMapMemory, PFN_vkMapMemory, "vkMapMemory"); + VMA_FETCH_DEVICE_FUNC(vkUnmapMemory, PFN_vkUnmapMemory, "vkUnmapMemory"); + VMA_FETCH_DEVICE_FUNC(vkFlushMappedMemoryRanges, PFN_vkFlushMappedMemoryRanges, "vkFlushMappedMemoryRanges"); + VMA_FETCH_DEVICE_FUNC(vkInvalidateMappedMemoryRanges, PFN_vkInvalidateMappedMemoryRanges, "vkInvalidateMappedMemoryRanges"); + VMA_FETCH_DEVICE_FUNC(vkBindBufferMemory, PFN_vkBindBufferMemory, "vkBindBufferMemory"); + VMA_FETCH_DEVICE_FUNC(vkBindImageMemory, PFN_vkBindImageMemory, "vkBindImageMemory"); + VMA_FETCH_DEVICE_FUNC(vkGetBufferMemoryRequirements, PFN_vkGetBufferMemoryRequirements, "vkGetBufferMemoryRequirements"); + VMA_FETCH_DEVICE_FUNC(vkGetImageMemoryRequirements, PFN_vkGetImageMemoryRequirements, "vkGetImageMemoryRequirements"); + VMA_FETCH_DEVICE_FUNC(vkCreateBuffer, PFN_vkCreateBuffer, "vkCreateBuffer"); + VMA_FETCH_DEVICE_FUNC(vkDestroyBuffer, PFN_vkDestroyBuffer, "vkDestroyBuffer"); + VMA_FETCH_DEVICE_FUNC(vkCreateImage, PFN_vkCreateImage, "vkCreateImage"); + VMA_FETCH_DEVICE_FUNC(vkDestroyImage, PFN_vkDestroyImage, "vkDestroyImage"); + VMA_FETCH_DEVICE_FUNC(vkCmdCopyBuffer, PFN_vkCmdCopyBuffer, "vkCmdCopyBuffer"); + +#if VMA_VULKAN_VERSION >= 1001000 + if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0)) + { + VMA_FETCH_DEVICE_FUNC(vkGetBufferMemoryRequirements2KHR, PFN_vkGetBufferMemoryRequirements2, "vkGetBufferMemoryRequirements2"); + VMA_FETCH_DEVICE_FUNC(vkGetImageMemoryRequirements2KHR, PFN_vkGetImageMemoryRequirements2, "vkGetImageMemoryRequirements2"); + VMA_FETCH_DEVICE_FUNC(vkBindBufferMemory2KHR, PFN_vkBindBufferMemory2, "vkBindBufferMemory2"); + VMA_FETCH_DEVICE_FUNC(vkBindImageMemory2KHR, PFN_vkBindImageMemory2, "vkBindImageMemory2"); + VMA_FETCH_INSTANCE_FUNC(vkGetPhysicalDeviceMemoryProperties2KHR, PFN_vkGetPhysicalDeviceMemoryProperties2, "vkGetPhysicalDeviceMemoryProperties2"); + } +#endif + +#if VMA_DEDICATED_ALLOCATION + if(m_UseKhrDedicatedAllocation) + { + VMA_FETCH_DEVICE_FUNC(vkGetBufferMemoryRequirements2KHR, PFN_vkGetBufferMemoryRequirements2KHR, "vkGetBufferMemoryRequirements2KHR"); + VMA_FETCH_DEVICE_FUNC(vkGetImageMemoryRequirements2KHR, PFN_vkGetImageMemoryRequirements2KHR, "vkGetImageMemoryRequirements2KHR"); + } +#endif + +#if VMA_BIND_MEMORY2 + if(m_UseKhrBindMemory2) + { + VMA_FETCH_DEVICE_FUNC(vkBindBufferMemory2KHR, PFN_vkBindBufferMemory2KHR, "vkBindBufferMemory2KHR"); + VMA_FETCH_DEVICE_FUNC(vkBindImageMemory2KHR, PFN_vkBindImageMemory2KHR, "vkBindImageMemory2KHR"); + } +#endif // #if VMA_BIND_MEMORY2 + +#if VMA_MEMORY_BUDGET + if(m_UseExtMemoryBudget) + { + VMA_FETCH_INSTANCE_FUNC(vkGetPhysicalDeviceMemoryProperties2KHR, PFN_vkGetPhysicalDeviceMemoryProperties2KHR, "vkGetPhysicalDeviceMemoryProperties2KHR"); + } +#endif // #if VMA_MEMORY_BUDGET + +#undef VMA_FETCH_DEVICE_FUNC +#undef VMA_FETCH_INSTANCE_FUNC +} + +#endif // #if VMA_DYNAMIC_VULKAN_FUNCTIONS == 1 + +void VmaAllocator_T::ValidateVulkanFunctions() +{ VMA_ASSERT(m_VulkanFunctions.vkGetPhysicalDeviceProperties != VMA_NULL); VMA_ASSERT(m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties != VMA_NULL); VMA_ASSERT(m_VulkanFunctions.vkAllocateMemory != VMA_NULL); VMA_ASSERT(m_VulkanFunctions.vkFreeMemory != VMA_NULL); VMA_ASSERT(m_VulkanFunctions.vkMapMemory != VMA_NULL); VMA_ASSERT(m_VulkanFunctions.vkUnmapMemory != VMA_NULL); + VMA_ASSERT(m_VulkanFunctions.vkFlushMappedMemoryRanges != VMA_NULL); + VMA_ASSERT(m_VulkanFunctions.vkInvalidateMappedMemoryRanges != VMA_NULL); VMA_ASSERT(m_VulkanFunctions.vkBindBufferMemory != VMA_NULL); VMA_ASSERT(m_VulkanFunctions.vkBindImageMemory != VMA_NULL); VMA_ASSERT(m_VulkanFunctions.vkGetBufferMemoryRequirements != VMA_NULL); @@ -7525,11 +14591,30 @@ void VmaAllocator_T::ImportVulkanFunctions(const VmaVulkanFunctions* pVulkanFunc VMA_ASSERT(m_VulkanFunctions.vkDestroyBuffer != VMA_NULL); VMA_ASSERT(m_VulkanFunctions.vkCreateImage != VMA_NULL); VMA_ASSERT(m_VulkanFunctions.vkDestroyImage != VMA_NULL); - if(m_UseKhrDedicatedAllocation) + VMA_ASSERT(m_VulkanFunctions.vkCmdCopyBuffer != VMA_NULL); + +#if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000 + if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0) || m_UseKhrDedicatedAllocation) { VMA_ASSERT(m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR != VMA_NULL); VMA_ASSERT(m_VulkanFunctions.vkGetImageMemoryRequirements2KHR != VMA_NULL); } +#endif + +#if VMA_BIND_MEMORY2 || VMA_VULKAN_VERSION >= 1001000 + if(m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0) || m_UseKhrBindMemory2) + { + VMA_ASSERT(m_VulkanFunctions.vkBindBufferMemory2KHR != VMA_NULL); + VMA_ASSERT(m_VulkanFunctions.vkBindImageMemory2KHR != VMA_NULL); + } +#endif + +#if VMA_MEMORY_BUDGET || VMA_VULKAN_VERSION >= 1001000 + if(m_UseExtMemoryBudget || m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0)) + { + VMA_ASSERT(m_VulkanFunctions.vkGetPhysicalDeviceMemoryProperties2KHR != VMA_NULL); + } +#endif } VkDeviceSize VmaAllocator_T::CalcPreferredBlockSize(uint32_t memTypeIndex) @@ -7537,21 +14622,24 @@ VkDeviceSize VmaAllocator_T::CalcPreferredBlockSize(uint32_t memTypeIndex) const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(memTypeIndex); const VkDeviceSize heapSize = m_MemProps.memoryHeaps[heapIndex].size; const bool isSmallHeap = heapSize <= VMA_SMALL_HEAP_MAX_SIZE; - return isSmallHeap ? (heapSize / 8) : m_PreferredLargeHeapBlockSize; + return VmaAlignUp(isSmallHeap ? (heapSize / 8) : m_PreferredLargeHeapBlockSize, (VkDeviceSize)32); } VkResult VmaAllocator_T::AllocateMemoryOfType( - const VkMemoryRequirements& vkMemReq, + VkDeviceSize size, + VkDeviceSize alignment, bool dedicatedAllocation, VkBuffer dedicatedBuffer, + VkBufferUsageFlags dedicatedBufferUsage, VkImage dedicatedImage, const VmaAllocationCreateInfo& createInfo, uint32_t memTypeIndex, VmaSuballocationType suballocType, - VmaAllocation* pAllocation) + size_t allocationCount, + VmaAllocation* pAllocations) { - VMA_ASSERT(pAllocation != VMA_NULL); - VMA_DEBUG_LOG(" AllocateMemory: MemoryTypeIndex=%u, Size=%llu", memTypeIndex, vkMemReq.size); + VMA_ASSERT(pAllocations != VMA_NULL); + VMA_DEBUG_LOG(" AllocateMemory: MemoryTypeIndex=%u, AllocationCount=%zu, Size=%llu", memTypeIndex, allocationCount, size); VmaAllocationCreateInfo finalCreateInfo = createInfo; @@ -7561,6 +14649,11 @@ VkResult VmaAllocator_T::AllocateMemoryOfType( { finalCreateInfo.flags &= ~VMA_ALLOCATION_CREATE_MAPPED_BIT; } + // If memory is lazily allocated, it should be always dedicated. + if(finalCreateInfo.usage == VMA_MEMORY_USAGE_GPU_LAZILY_ALLOCATED) + { + finalCreateInfo.flags |= VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT; + } VmaBlockVector* const blockVector = m_pBlockVectors[memTypeIndex]; VMA_ASSERT(blockVector); @@ -7570,7 +14663,7 @@ VkResult VmaAllocator_T::AllocateMemoryOfType( VMA_DEBUG_ALWAYS_DEDICATED_MEMORY || dedicatedAllocation || // Heuristics: Allocate dedicated memory if requested size if greater than half of preferred block size. - vkMemReq.size > preferredBlockSize / 2; + size > preferredBlockSize / 2; if(preferDedicatedMemory && (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) == 0 && @@ -7588,26 +14681,31 @@ VkResult VmaAllocator_T::AllocateMemoryOfType( else { return AllocateDedicatedMemory( - vkMemReq.size, + size, suballocType, memTypeIndex, + (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_WITHIN_BUDGET_BIT) != 0, (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0, (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0, finalCreateInfo.pUserData, + finalCreateInfo.priority, dedicatedBuffer, + dedicatedBufferUsage, dedicatedImage, - pAllocation); + allocationCount, + pAllocations); } } else { VkResult res = blockVector->Allocate( - VK_NULL_HANDLE, // hCurrentPool m_CurrentFrameIndex.load(), - vkMemReq, + size, + alignment, finalCreateInfo, suballocType, - pAllocation); + allocationCount, + pAllocations); if(res == VK_SUCCESS) { return res; @@ -7618,30 +14716,40 @@ VkResult VmaAllocator_T::AllocateMemoryOfType( { return VK_ERROR_OUT_OF_DEVICE_MEMORY; } + + // Protection against creating each allocation as dedicated when we reach or exceed heap size/budget, + // which can quickly deplete maxMemoryAllocationCount: Don't try dedicated allocations when above + // 3/4 of the maximum allocation count. + if(m_DeviceMemoryCount.load() > m_PhysicalDeviceProperties.limits.maxMemoryAllocationCount * 3 / 4) + { + return VK_ERROR_OUT_OF_DEVICE_MEMORY; + } + + res = AllocateDedicatedMemory( + size, + suballocType, + memTypeIndex, + (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_WITHIN_BUDGET_BIT) != 0, + (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0, + (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0, + finalCreateInfo.pUserData, + finalCreateInfo.priority, + dedicatedBuffer, + dedicatedBufferUsage, + dedicatedImage, + allocationCount, + pAllocations); + if(res == VK_SUCCESS) + { + // Succeeded: AllocateDedicatedMemory function already filld pMemory, nothing more to do here. + VMA_DEBUG_LOG(" Allocated as DedicatedMemory"); + return VK_SUCCESS; + } else { - res = AllocateDedicatedMemory( - vkMemReq.size, - suballocType, - memTypeIndex, - (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0, - (finalCreateInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0, - finalCreateInfo.pUserData, - dedicatedBuffer, - dedicatedImage, - pAllocation); - if(res == VK_SUCCESS) - { - // Succeeded: AllocateDedicatedMemory function already filld pMemory, nothing more to do here. - VMA_DEBUG_LOG(" Allocated as DedicatedMemory"); - return VK_SUCCESS; - } - else - { - // Everything failed: Return error code. - VMA_DEBUG_LOG(" vkAllocateMemory FAILED"); - return res; - } + // Everything failed: Return error code. + VMA_DEBUG_LOG(" vkAllocateMemory FAILED"); + return res; } } } @@ -7650,36 +14758,166 @@ VkResult VmaAllocator_T::AllocateDedicatedMemory( VkDeviceSize size, VmaSuballocationType suballocType, uint32_t memTypeIndex, + bool withinBudget, bool map, bool isUserDataString, void* pUserData, + float priority, VkBuffer dedicatedBuffer, + VkBufferUsageFlags dedicatedBufferUsage, VkImage dedicatedImage, - VmaAllocation* pAllocation) + size_t allocationCount, + VmaAllocation* pAllocations) { - VMA_ASSERT(pAllocation); + VMA_ASSERT(allocationCount > 0 && pAllocations); + + if(withinBudget) + { + const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(memTypeIndex); + VmaBudget heapBudget = {}; + GetBudget(&heapBudget, heapIndex, 1); + if(heapBudget.usage + size * allocationCount > heapBudget.budget) + { + return VK_ERROR_OUT_OF_DEVICE_MEMORY; + } + } VkMemoryAllocateInfo allocInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO }; allocInfo.memoryTypeIndex = memTypeIndex; allocInfo.allocationSize = size; +#if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000 VkMemoryDedicatedAllocateInfoKHR dedicatedAllocInfo = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO_KHR }; - if(m_UseKhrDedicatedAllocation) + if(m_UseKhrDedicatedAllocation || m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0)) { if(dedicatedBuffer != VK_NULL_HANDLE) { VMA_ASSERT(dedicatedImage == VK_NULL_HANDLE); dedicatedAllocInfo.buffer = dedicatedBuffer; - allocInfo.pNext = &dedicatedAllocInfo; + VmaPnextChainPushFront(&allocInfo, &dedicatedAllocInfo); } else if(dedicatedImage != VK_NULL_HANDLE) { dedicatedAllocInfo.image = dedicatedImage; - allocInfo.pNext = &dedicatedAllocInfo; + VmaPnextChainPushFront(&allocInfo, &dedicatedAllocInfo); + } + } +#endif // #if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000 + +#if VMA_BUFFER_DEVICE_ADDRESS + VkMemoryAllocateFlagsInfoKHR allocFlagsInfo = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_FLAGS_INFO_KHR }; + if(m_UseKhrBufferDeviceAddress) + { + bool canContainBufferWithDeviceAddress = true; + if(dedicatedBuffer != VK_NULL_HANDLE) + { + canContainBufferWithDeviceAddress = dedicatedBufferUsage == UINT32_MAX || // Usage flags unknown + (dedicatedBufferUsage & VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_EXT) != 0; + } + else if(dedicatedImage != VK_NULL_HANDLE) + { + canContainBufferWithDeviceAddress = false; + } + if(canContainBufferWithDeviceAddress) + { + allocFlagsInfo.flags = VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT_KHR; + VmaPnextChainPushFront(&allocInfo, &allocFlagsInfo); + } + } +#endif // #if VMA_BUFFER_DEVICE_ADDRESS + +#if VMA_MEMORY_PRIORITY + VkMemoryPriorityAllocateInfoEXT priorityInfo = { VK_STRUCTURE_TYPE_MEMORY_PRIORITY_ALLOCATE_INFO_EXT }; + if(m_UseExtMemoryPriority) + { + priorityInfo.priority = priority; + VmaPnextChainPushFront(&allocInfo, &priorityInfo); + } +#endif // #if VMA_MEMORY_PRIORITY + +#if VMA_EXTERNAL_MEMORY + // Attach VkExportMemoryAllocateInfoKHR if necessary. + VkExportMemoryAllocateInfoKHR exportMemoryAllocInfo = { VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO_KHR }; + exportMemoryAllocInfo.handleTypes = GetExternalMemoryHandleTypeFlags(memTypeIndex); + if(exportMemoryAllocInfo.handleTypes != 0) + { + VmaPnextChainPushFront(&allocInfo, &exportMemoryAllocInfo); + } +#endif // #if VMA_EXTERNAL_MEMORY + + size_t allocIndex; + VkResult res = VK_SUCCESS; + for(allocIndex = 0; allocIndex < allocationCount; ++allocIndex) + { + res = AllocateDedicatedMemoryPage( + size, + suballocType, + memTypeIndex, + allocInfo, + map, + isUserDataString, + pUserData, + pAllocations + allocIndex); + if(res != VK_SUCCESS) + { + break; } } - // Allocate VkDeviceMemory. + if(res == VK_SUCCESS) + { + // Register them in m_DedicatedAllocations. + { + VmaMutexLockWrite lock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex); + DedicatedAllocationLinkedList& dedicatedAllocations = m_DedicatedAllocations[memTypeIndex]; + for(allocIndex = 0; allocIndex < allocationCount; ++allocIndex) + { + dedicatedAllocations.PushBack(pAllocations[allocIndex]); + } + } + + VMA_DEBUG_LOG(" Allocated DedicatedMemory Count=%zu, MemoryTypeIndex=#%u", allocationCount, memTypeIndex); + } + else + { + // Free all already created allocations. + while(allocIndex--) + { + VmaAllocation currAlloc = pAllocations[allocIndex]; + VkDeviceMemory hMemory = currAlloc->GetMemory(); + + /* + There is no need to call this, because Vulkan spec allows to skip vkUnmapMemory + before vkFreeMemory. + + if(currAlloc->GetMappedData() != VMA_NULL) + { + (*m_VulkanFunctions.vkUnmapMemory)(m_hDevice, hMemory); + } + */ + + FreeVulkanMemory(memTypeIndex, currAlloc->GetSize(), hMemory); + m_Budget.RemoveAllocation(MemoryTypeIndexToHeapIndex(memTypeIndex), currAlloc->GetSize()); + currAlloc->SetUserData(this, VMA_NULL); + m_AllocationObjectAllocator.Free(currAlloc); + } + + memset(pAllocations, 0, sizeof(VmaAllocation) * allocationCount); + } + + return res; +} + +VkResult VmaAllocator_T::AllocateDedicatedMemoryPage( + VkDeviceSize size, + VmaSuballocationType suballocType, + uint32_t memTypeIndex, + const VkMemoryAllocateInfo& allocInfo, + bool map, + bool isUserDataString, + void* pUserData, + VmaAllocation* pAllocation) +{ VkDeviceMemory hMemory = VK_NULL_HANDLE; VkResult res = AllocateVulkanMemory(&allocInfo, &hMemory); if(res < 0) @@ -7706,20 +14944,15 @@ VkResult VmaAllocator_T::AllocateDedicatedMemory( } } - *pAllocation = vma_new(this, VmaAllocation_T)(m_CurrentFrameIndex.load(), isUserDataString); + *pAllocation = m_AllocationObjectAllocator.Allocate(m_CurrentFrameIndex.load(), isUserDataString); (*pAllocation)->InitDedicatedAllocation(memTypeIndex, hMemory, suballocType, pMappedData, size); (*pAllocation)->SetUserData(this, pUserData); - - // Register it in m_pDedicatedAllocations. + m_Budget.AddAllocation(MemoryTypeIndexToHeapIndex(memTypeIndex), size); + if(VMA_DEBUG_INITIALIZE_ALLOCATIONS) { - VmaMutexLock lock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex); - AllocationVectorType* pDedicatedAllocations = m_pDedicatedAllocations[memTypeIndex]; - VMA_ASSERT(pDedicatedAllocations); - VmaVectorInsertSorted(*pDedicatedAllocations, *pAllocation); + FillAllocation(*pAllocation, VMA_ALLOCATION_FILL_PATTERN_CREATED); } - VMA_DEBUG_LOG(" Allocated DedicatedMemory MemoryTypeIndex=#%u", memTypeIndex); - return VK_SUCCESS; } @@ -7729,7 +14962,8 @@ void VmaAllocator_T::GetBufferMemoryRequirements( bool& requiresDedicatedAllocation, bool& prefersDedicatedAllocation) const { - if(m_UseKhrDedicatedAllocation) +#if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000 + if(m_UseKhrDedicatedAllocation || m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0)) { VkBufferMemoryRequirementsInfo2KHR memReqInfo = { VK_STRUCTURE_TYPE_BUFFER_MEMORY_REQUIREMENTS_INFO_2_KHR }; memReqInfo.buffer = hBuffer; @@ -7737,7 +14971,7 @@ void VmaAllocator_T::GetBufferMemoryRequirements( VkMemoryDedicatedRequirementsKHR memDedicatedReq = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS_KHR }; VkMemoryRequirements2KHR memReq2 = { VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2_KHR }; - memReq2.pNext = &memDedicatedReq; + VmaPnextChainPushFront(&memReq2, &memDedicatedReq); (*m_VulkanFunctions.vkGetBufferMemoryRequirements2KHR)(m_hDevice, &memReqInfo, &memReq2); @@ -7746,6 +14980,7 @@ void VmaAllocator_T::GetBufferMemoryRequirements( prefersDedicatedAllocation = (memDedicatedReq.prefersDedicatedAllocation != VK_FALSE); } else +#endif // #if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000 { (*m_VulkanFunctions.vkGetBufferMemoryRequirements)(m_hDevice, hBuffer, &memReq); requiresDedicatedAllocation = false; @@ -7759,7 +14994,8 @@ void VmaAllocator_T::GetImageMemoryRequirements( bool& requiresDedicatedAllocation, bool& prefersDedicatedAllocation) const { - if(m_UseKhrDedicatedAllocation) +#if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000 + if(m_UseKhrDedicatedAllocation || m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0)) { VkImageMemoryRequirementsInfo2KHR memReqInfo = { VK_STRUCTURE_TYPE_IMAGE_MEMORY_REQUIREMENTS_INFO_2_KHR }; memReqInfo.image = hImage; @@ -7767,7 +15003,7 @@ void VmaAllocator_T::GetImageMemoryRequirements( VkMemoryDedicatedRequirementsKHR memDedicatedReq = { VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS_KHR }; VkMemoryRequirements2KHR memReq2 = { VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2_KHR }; - memReq2.pNext = &memDedicatedReq; + VmaPnextChainPushFront(&memReq2, &memDedicatedReq); (*m_VulkanFunctions.vkGetImageMemoryRequirements2KHR)(m_hDevice, &memReqInfo, &memReq2); @@ -7776,6 +15012,7 @@ void VmaAllocator_T::GetImageMemoryRequirements( prefersDedicatedAllocation = (memDedicatedReq.prefersDedicatedAllocation != VK_FALSE); } else +#endif // #if VMA_DEDICATED_ALLOCATION || VMA_VULKAN_VERSION >= 1001000 { (*m_VulkanFunctions.vkGetImageMemoryRequirements)(m_hDevice, hImage, &memReq); requiresDedicatedAllocation = false; @@ -7788,11 +15025,21 @@ VkResult VmaAllocator_T::AllocateMemory( bool requiresDedicatedAllocation, bool prefersDedicatedAllocation, VkBuffer dedicatedBuffer, + VkBufferUsageFlags dedicatedBufferUsage, VkImage dedicatedImage, const VmaAllocationCreateInfo& createInfo, VmaSuballocationType suballocType, - VmaAllocation* pAllocation) + size_t allocationCount, + VmaAllocation* pAllocations) { + memset(pAllocations, 0, sizeof(VmaAllocation) * allocationCount); + + VMA_ASSERT(VmaIsPow2(vkMemReq.alignment)); + + if(vkMemReq.size == 0) + { + return VK_ERROR_INITIALIZATION_FAILED; + } if((createInfo.flags & VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT) != 0 && (createInfo.flags & VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT) != 0) { @@ -7827,13 +15074,22 @@ VkResult VmaAllocator_T::AllocateMemory( if(createInfo.pool != VK_NULL_HANDLE) { + VmaAllocationCreateInfo createInfoForPool = createInfo; + // If memory type is not HOST_VISIBLE, disable MAPPED. + if((createInfoForPool.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0 && + (m_MemProps.memoryTypes[createInfo.pool->m_BlockVector.GetMemoryTypeIndex()].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0) + { + createInfoForPool.flags &= ~VMA_ALLOCATION_CREATE_MAPPED_BIT; + } + return createInfo.pool->m_BlockVector.Allocate( - createInfo.pool, m_CurrentFrameIndex.load(), - vkMemReq, - createInfo, + vkMemReq.size, + vkMemReq.alignment, + createInfoForPool, suballocType, - pAllocation); + allocationCount, + pAllocations); } else { @@ -7844,14 +15100,17 @@ VkResult VmaAllocator_T::AllocateMemory( if(res == VK_SUCCESS) { res = AllocateMemoryOfType( - vkMemReq, + vkMemReq.size, + vkMemReq.alignment, requiresDedicatedAllocation || prefersDedicatedAllocation, dedicatedBuffer, + dedicatedBufferUsage, dedicatedImage, createInfo, memTypeIndex, suballocType, - pAllocation); + allocationCount, + pAllocations); // Succeeded on first try. if(res == VK_SUCCESS) { @@ -7869,14 +15128,17 @@ VkResult VmaAllocator_T::AllocateMemory( if(res == VK_SUCCESS) { res = AllocateMemoryOfType( - vkMemReq, + vkMemReq.size, + vkMemReq.alignment, requiresDedicatedAllocation || prefersDedicatedAllocation, dedicatedBuffer, + dedicatedBufferUsage, dedicatedImage, createInfo, memTypeIndex, suballocType, - pAllocation); + allocationCount, + pAllocations); // Allocation from this alternative memory type succeeded. if(res == VK_SUCCESS) { @@ -7899,41 +15161,57 @@ VkResult VmaAllocator_T::AllocateMemory( } } -void VmaAllocator_T::FreeMemory(const VmaAllocation allocation) +void VmaAllocator_T::FreeMemory( + size_t allocationCount, + const VmaAllocation* pAllocations) { - VMA_ASSERT(allocation); + VMA_ASSERT(pAllocations); - if(allocation->CanBecomeLost() == false || - allocation->GetLastUseFrameIndex() != VMA_FRAME_INDEX_LOST) + for(size_t allocIndex = allocationCount; allocIndex--; ) { - switch(allocation->GetType()) + VmaAllocation allocation = pAllocations[allocIndex]; + + if(allocation != VK_NULL_HANDLE) { - case VmaAllocation_T::ALLOCATION_TYPE_BLOCK: + if(TouchAllocation(allocation)) { - VmaBlockVector* pBlockVector = VMA_NULL; - VmaPool hPool = allocation->GetPool(); - if(hPool != VK_NULL_HANDLE) + if(VMA_DEBUG_INITIALIZE_ALLOCATIONS) { - pBlockVector = &hPool->m_BlockVector; + FillAllocation(allocation, VMA_ALLOCATION_FILL_PATTERN_DESTROYED); } - else + + switch(allocation->GetType()) { - const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex(); - pBlockVector = m_pBlockVectors[memTypeIndex]; + case VmaAllocation_T::ALLOCATION_TYPE_BLOCK: + { + VmaBlockVector* pBlockVector = VMA_NULL; + VmaPool hPool = allocation->GetBlock()->GetParentPool(); + if(hPool != VK_NULL_HANDLE) + { + pBlockVector = &hPool->m_BlockVector; + } + else + { + const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex(); + pBlockVector = m_pBlockVectors[memTypeIndex]; + } + pBlockVector->Free(allocation); + } + break; + case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED: + FreeDedicatedMemory(allocation); + break; + default: + VMA_ASSERT(0); } - pBlockVector->Free(allocation); } - break; - case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED: - FreeDedicatedMemory(allocation); - break; - default: - VMA_ASSERT(0); + + // Do this regardless of whether the allocation is lost. Lost allocations still account to Budget.AllocationBytes. + m_Budget.RemoveAllocation(MemoryTypeIndexToHeapIndex(allocation->GetMemoryTypeIndex()), allocation->GetSize()); + allocation->SetUserData(this, VMA_NULL); + m_AllocationObjectAllocator.Free(allocation); } } - - allocation->SetUserData(this, VMA_NULL); - vma_delete(this, allocation); } void VmaAllocator_T::CalculateStats(VmaStats* pStats) @@ -7944,7 +15222,7 @@ void VmaAllocator_T::CalculateStats(VmaStats* pStats) InitStatInfo(pStats->memoryType[i]); for(size_t i = 0; i < VK_MAX_MEMORY_HEAPS; ++i) InitStatInfo(pStats->memoryHeap[i]); - + // Process default pools. for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex) { @@ -7955,10 +15233,10 @@ void VmaAllocator_T::CalculateStats(VmaStats* pStats) // Process custom pools. { - VmaMutexLock lock(m_PoolsMutex, m_UseMutex); - for(size_t poolIndex = 0, poolCount = m_Pools.size(); poolIndex < poolCount; ++poolIndex) + VmaMutexLockRead lock(m_PoolsMutex, m_UseMutex); + for(VmaPool pool = m_Pools.Front(); pool != VMA_NULL; pool = m_Pools.GetNext(pool)) { - m_Pools[poolIndex]->GetBlockVector().AddStats(pStats); + pool->m_BlockVector.AddStats(pStats); } } @@ -7966,13 +15244,13 @@ void VmaAllocator_T::CalculateStats(VmaStats* pStats) for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex) { const uint32_t memHeapIndex = MemoryTypeIndexToHeapIndex(memTypeIndex); - VmaMutexLock dedicatedAllocationsLock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex); - AllocationVectorType* const pDedicatedAllocVector = m_pDedicatedAllocations[memTypeIndex]; - VMA_ASSERT(pDedicatedAllocVector); - for(size_t allocIndex = 0, allocCount = pDedicatedAllocVector->size(); allocIndex < allocCount; ++allocIndex) + VmaMutexLockRead dedicatedAllocationsLock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex); + DedicatedAllocationLinkedList& dedicatedAllocList = m_DedicatedAllocations[memTypeIndex]; + for(VmaAllocation alloc = dedicatedAllocList.Front(); + alloc != VMA_NULL; alloc = dedicatedAllocList.GetNext(alloc)) { VmaStatInfo allocationStatInfo; - (*pDedicatedAllocVector)[allocIndex]->DedicatedAllocCalcStatsInfo(allocationStatInfo); + alloc->DedicatedAllocCalcStatsInfo(allocationStatInfo); VmaAddStatInfo(pStats->total, allocationStatInfo); VmaAddStatInfo(pStats->memoryType[memTypeIndex], allocationStatInfo); VmaAddStatInfo(pStats->memoryHeap[memHeapIndex], allocationStatInfo); @@ -7987,119 +15265,109 @@ void VmaAllocator_T::CalculateStats(VmaStats* pStats) VmaPostprocessCalcStatInfo(pStats->memoryHeap[i]); } +void VmaAllocator_T::GetBudget(VmaBudget* outBudget, uint32_t firstHeap, uint32_t heapCount) +{ +#if VMA_MEMORY_BUDGET + if(m_UseExtMemoryBudget) + { + if(m_Budget.m_OperationsSinceBudgetFetch < 30) + { + VmaMutexLockRead lockRead(m_Budget.m_BudgetMutex, m_UseMutex); + for(uint32_t i = 0; i < heapCount; ++i, ++outBudget) + { + const uint32_t heapIndex = firstHeap + i; + + outBudget->blockBytes = m_Budget.m_BlockBytes[heapIndex]; + outBudget->allocationBytes = m_Budget.m_AllocationBytes[heapIndex]; + + if(m_Budget.m_VulkanUsage[heapIndex] + outBudget->blockBytes > m_Budget.m_BlockBytesAtBudgetFetch[heapIndex]) + { + outBudget->usage = m_Budget.m_VulkanUsage[heapIndex] + + outBudget->blockBytes - m_Budget.m_BlockBytesAtBudgetFetch[heapIndex]; + } + else + { + outBudget->usage = 0; + } + + // Have to take MIN with heap size because explicit HeapSizeLimit is included in it. + outBudget->budget = VMA_MIN( + m_Budget.m_VulkanBudget[heapIndex], m_MemProps.memoryHeaps[heapIndex].size); + } + } + else + { + UpdateVulkanBudget(); // Outside of mutex lock + GetBudget(outBudget, firstHeap, heapCount); // Recursion + } + } + else +#endif + { + for(uint32_t i = 0; i < heapCount; ++i, ++outBudget) + { + const uint32_t heapIndex = firstHeap + i; + + outBudget->blockBytes = m_Budget.m_BlockBytes[heapIndex]; + outBudget->allocationBytes = m_Budget.m_AllocationBytes[heapIndex]; + + outBudget->usage = outBudget->blockBytes; + outBudget->budget = m_MemProps.memoryHeaps[heapIndex].size * 8 / 10; // 80% heuristics. + } + } +} + static const uint32_t VMA_VENDOR_ID_AMD = 4098; -VkResult VmaAllocator_T::Defragment( - VmaAllocation* pAllocations, - size_t allocationCount, - VkBool32* pAllocationsChanged, - const VmaDefragmentationInfo* pDefragmentationInfo, - VmaDefragmentationStats* pDefragmentationStats) +VkResult VmaAllocator_T::DefragmentationBegin( + const VmaDefragmentationInfo2& info, + VmaDefragmentationStats* pStats, + VmaDefragmentationContext* pContext) { - if(pAllocationsChanged != VMA_NULL) + if(info.pAllocationsChanged != VMA_NULL) { - memset(pAllocationsChanged, 0, sizeof(*pAllocationsChanged)); - } - if(pDefragmentationStats != VMA_NULL) - { - memset(pDefragmentationStats, 0, sizeof(*pDefragmentationStats)); + memset(info.pAllocationsChanged, 0, info.allocationCount * sizeof(VkBool32)); } - const uint32_t currentFrameIndex = m_CurrentFrameIndex.load(); + *pContext = vma_new(this, VmaDefragmentationContext_T)( + this, m_CurrentFrameIndex.load(), info.flags, pStats); - VmaMutexLock poolsLock(m_PoolsMutex, m_UseMutex); + (*pContext)->AddPools(info.poolCount, info.pPools); + (*pContext)->AddAllocations( + info.allocationCount, info.pAllocations, info.pAllocationsChanged); - const size_t poolCount = m_Pools.size(); + VkResult res = (*pContext)->Defragment( + info.maxCpuBytesToMove, info.maxCpuAllocationsToMove, + info.maxGpuBytesToMove, info.maxGpuAllocationsToMove, + info.commandBuffer, pStats, info.flags); - // Dispatch pAllocations among defragmentators. Create them in BlockVectors when necessary. - for(size_t allocIndex = 0; allocIndex < allocationCount; ++allocIndex) + if(res != VK_NOT_READY) { - VmaAllocation hAlloc = pAllocations[allocIndex]; - VMA_ASSERT(hAlloc); - const uint32_t memTypeIndex = hAlloc->GetMemoryTypeIndex(); - // DedicatedAlloc cannot be defragmented. - if((hAlloc->GetType() == VmaAllocation_T::ALLOCATION_TYPE_BLOCK) && - // Only HOST_VISIBLE memory types can be defragmented. - ((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0) && - // Lost allocation cannot be defragmented. - (hAlloc->GetLastUseFrameIndex() != VMA_FRAME_INDEX_LOST)) - { - VmaBlockVector* pAllocBlockVector = VMA_NULL; - - const VmaPool hAllocPool = hAlloc->GetPool(); - // This allocation belongs to custom pool. - if(hAllocPool != VK_NULL_HANDLE) - { - pAllocBlockVector = &hAllocPool->GetBlockVector(); - } - // This allocation belongs to general pool. - else - { - pAllocBlockVector = m_pBlockVectors[memTypeIndex]; - } - - VmaDefragmentator* const pDefragmentator = pAllocBlockVector->EnsureDefragmentator(this, currentFrameIndex); - - VkBool32* const pChanged = (pAllocationsChanged != VMA_NULL) ? - &pAllocationsChanged[allocIndex] : VMA_NULL; - pDefragmentator->AddAllocation(hAlloc, pChanged); - } + vma_delete(this, *pContext); + *pContext = VMA_NULL; } - VkResult result = VK_SUCCESS; + return res; +} - // ======== Main processing. +VkResult VmaAllocator_T::DefragmentationEnd( + VmaDefragmentationContext context) +{ + vma_delete(this, context); + return VK_SUCCESS; +} - VkDeviceSize maxBytesToMove = SIZE_MAX; - uint32_t maxAllocationsToMove = UINT32_MAX; - if(pDefragmentationInfo != VMA_NULL) - { - maxBytesToMove = pDefragmentationInfo->maxBytesToMove; - maxAllocationsToMove = pDefragmentationInfo->maxAllocationsToMove; - } +VkResult VmaAllocator_T::DefragmentationPassBegin( + VmaDefragmentationPassInfo* pInfo, + VmaDefragmentationContext context) +{ + return context->DefragmentPassBegin(pInfo); +} +VkResult VmaAllocator_T::DefragmentationPassEnd( + VmaDefragmentationContext context) +{ + return context->DefragmentPassEnd(); - // Process standard memory. - for(uint32_t memTypeIndex = 0; - (memTypeIndex < GetMemoryTypeCount()) && (result == VK_SUCCESS); - ++memTypeIndex) - { - // Only HOST_VISIBLE memory types can be defragmented. - if((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0) - { - result = m_pBlockVectors[memTypeIndex]->Defragment( - pDefragmentationStats, - maxBytesToMove, - maxAllocationsToMove); - } - } - - // Process custom pools. - for(size_t poolIndex = 0; (poolIndex < poolCount) && (result == VK_SUCCESS); ++poolIndex) - { - result = m_Pools[poolIndex]->GetBlockVector().Defragment( - pDefragmentationStats, - maxBytesToMove, - maxAllocationsToMove); - } - - // ======== Destroy defragmentators. - - // Process custom pools. - for(size_t poolIndex = poolCount; poolIndex--; ) - { - m_Pools[poolIndex]->GetBlockVector().DestroyDefragmentator(); - } - - // Process standard memory. - for(uint32_t memTypeIndex = GetMemoryTypeCount(); memTypeIndex--; ) - { - if((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0) - { - m_pBlockVectors[memTypeIndex]->DestroyDefragmentator(); - } - } - - return result; } void VmaAllocator_T::GetAllocationInfo(VmaAllocation hAllocation, VmaAllocationInfo* pAllocationInfo) @@ -8108,9 +15376,9 @@ void VmaAllocator_T::GetAllocationInfo(VmaAllocation hAllocation, VmaAllocationI { /* Warning: This is a carefully designed algorithm. - Do not modify unless you really know what you're doing :) + Do not modify unless you really know what you are doing :) */ - uint32_t localCurrFrameIndex = m_CurrentFrameIndex.load(); + const uint32_t localCurrFrameIndex = m_CurrentFrameIndex.load(); uint32_t localLastUseFrameIndex = hAllocation->GetLastUseFrameIndex(); for(;;) { @@ -8145,6 +15413,26 @@ void VmaAllocator_T::GetAllocationInfo(VmaAllocation hAllocation, VmaAllocationI } else { +#if VMA_STATS_STRING_ENABLED + uint32_t localCurrFrameIndex = m_CurrentFrameIndex.load(); + uint32_t localLastUseFrameIndex = hAllocation->GetLastUseFrameIndex(); + for(;;) + { + VMA_ASSERT(localLastUseFrameIndex != VMA_FRAME_INDEX_LOST); + if(localLastUseFrameIndex == localCurrFrameIndex) + { + break; + } + else // Last use time earlier than current time. + { + if(hAllocation->CompareExchangeLastUseFrameIndex(localLastUseFrameIndex, localCurrFrameIndex)) + { + localLastUseFrameIndex = localCurrFrameIndex; + } + } + } +#endif + pAllocationInfo->memoryType = hAllocation->GetMemoryTypeIndex(); pAllocationInfo->deviceMemory = hAllocation->GetMemory(); pAllocationInfo->offset = hAllocation->GetOffset(); @@ -8182,26 +15470,64 @@ bool VmaAllocator_T::TouchAllocation(VmaAllocation hAllocation) } else { +#if VMA_STATS_STRING_ENABLED + uint32_t localCurrFrameIndex = m_CurrentFrameIndex.load(); + uint32_t localLastUseFrameIndex = hAllocation->GetLastUseFrameIndex(); + for(;;) + { + VMA_ASSERT(localLastUseFrameIndex != VMA_FRAME_INDEX_LOST); + if(localLastUseFrameIndex == localCurrFrameIndex) + { + break; + } + else // Last use time earlier than current time. + { + if(hAllocation->CompareExchangeLastUseFrameIndex(localLastUseFrameIndex, localCurrFrameIndex)) + { + localLastUseFrameIndex = localCurrFrameIndex; + } + } + } +#endif + return true; } } VkResult VmaAllocator_T::CreatePool(const VmaPoolCreateInfo* pCreateInfo, VmaPool* pPool) { - VMA_DEBUG_LOG(" CreatePool: MemoryTypeIndex=%u", pCreateInfo->memoryTypeIndex); + VMA_DEBUG_LOG(" CreatePool: MemoryTypeIndex=%u, flags=%u", pCreateInfo->memoryTypeIndex, pCreateInfo->flags); VmaPoolCreateInfo newCreateInfo = *pCreateInfo; + // Protection against uninitialized new structure member. If garbage data are left there, this pointer dereference would crash. + if(pCreateInfo->pMemoryAllocateNext) + { + VMA_ASSERT(((const VkBaseInStructure*)pCreateInfo->pMemoryAllocateNext)->sType != 0); + } + if(newCreateInfo.maxBlockCount == 0) { newCreateInfo.maxBlockCount = SIZE_MAX; } - if(newCreateInfo.blockSize == 0) + if(newCreateInfo.minBlockCount > newCreateInfo.maxBlockCount) { - newCreateInfo.blockSize = CalcPreferredBlockSize(newCreateInfo.memoryTypeIndex); + return VK_ERROR_INITIALIZATION_FAILED; + } + // Memory type index out of range or forbidden. + if(pCreateInfo->memoryTypeIndex >= GetMemoryTypeCount() || + ((1u << pCreateInfo->memoryTypeIndex) & m_GlobalMemoryTypeBits) == 0) + { + return VK_ERROR_FEATURE_NOT_PRESENT; + } + if(newCreateInfo.minAllocationAlignment > 0) + { + VMA_ASSERT(VmaIsPow2(newCreateInfo.minAllocationAlignment)); } - *pPool = vma_new(this, VmaPool_T)(this, newCreateInfo); + const VkDeviceSize preferredBlockSize = CalcPreferredBlockSize(newCreateInfo.memoryTypeIndex); + + *pPool = vma_new(this, VmaPool_T)(this, newCreateInfo, preferredBlockSize); VkResult res = (*pPool)->m_BlockVector.CreateMinBlocks(); if(res != VK_SUCCESS) @@ -8213,8 +15539,9 @@ VkResult VmaAllocator_T::CreatePool(const VmaPoolCreateInfo* pCreateInfo, VmaPoo // Add to m_Pools. { - VmaMutexLock lock(m_PoolsMutex, m_UseMutex); - VmaVectorInsertSorted(m_Pools, *pPool); + VmaMutexLockWrite lock(m_PoolsMutex, m_UseMutex); + (*pPool)->SetId(m_NextPoolId++); + m_Pools.PushBack(*pPool); } return VK_SUCCESS; @@ -8224,9 +15551,8 @@ void VmaAllocator_T::DestroyPool(VmaPool pool) { // Remove from m_Pools. { - VmaMutexLock lock(m_PoolsMutex, m_UseMutex); - bool success = VmaVectorRemoveSorted(m_Pools, pool); - VMA_ASSERT(success && "Pool not found in Allocator."); + VmaMutexLockWrite lock(m_PoolsMutex, m_UseMutex); + m_Pools.Remove(pool); } vma_delete(this, pool); @@ -8240,6 +15566,13 @@ void VmaAllocator_T::GetPoolStats(VmaPool pool, VmaPoolStats* pPoolStats) void VmaAllocator_T::SetCurrentFrameIndex(uint32_t frameIndex) { m_CurrentFrameIndex.store(frameIndex); + +#if VMA_MEMORY_BUDGET + if(m_UseExtMemoryBudget) + { + UpdateVulkanBudget(); + } +#endif // #if VMA_MEMORY_BUDGET } void VmaAllocator_T::MakePoolAllocationsLost( @@ -8251,41 +15584,148 @@ void VmaAllocator_T::MakePoolAllocationsLost( pLostAllocationCount); } +VkResult VmaAllocator_T::CheckPoolCorruption(VmaPool hPool) +{ + return hPool->m_BlockVector.CheckCorruption(); +} + +VkResult VmaAllocator_T::CheckCorruption(uint32_t memoryTypeBits) +{ + VkResult finalRes = VK_ERROR_FEATURE_NOT_PRESENT; + + // Process default pools. + for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex) + { + if(((1u << memTypeIndex) & memoryTypeBits) != 0) + { + VmaBlockVector* const pBlockVector = m_pBlockVectors[memTypeIndex]; + VMA_ASSERT(pBlockVector); + VkResult localRes = pBlockVector->CheckCorruption(); + switch(localRes) + { + case VK_ERROR_FEATURE_NOT_PRESENT: + break; + case VK_SUCCESS: + finalRes = VK_SUCCESS; + break; + default: + return localRes; + } + } + } + + // Process custom pools. + { + VmaMutexLockRead lock(m_PoolsMutex, m_UseMutex); + for(VmaPool pool = m_Pools.Front(); pool != VMA_NULL; pool = m_Pools.GetNext(pool)) + { + if(((1u << pool->m_BlockVector.GetMemoryTypeIndex()) & memoryTypeBits) != 0) + { + VkResult localRes = pool->m_BlockVector.CheckCorruption(); + switch(localRes) + { + case VK_ERROR_FEATURE_NOT_PRESENT: + break; + case VK_SUCCESS: + finalRes = VK_SUCCESS; + break; + default: + return localRes; + } + } + } + } + + return finalRes; +} + void VmaAllocator_T::CreateLostAllocation(VmaAllocation* pAllocation) { - *pAllocation = vma_new(this, VmaAllocation_T)(VMA_FRAME_INDEX_LOST, false); + *pAllocation = m_AllocationObjectAllocator.Allocate(VMA_FRAME_INDEX_LOST, false); (*pAllocation)->InitLost(); } +// An object that increments given atomic but decrements it back in the destructor unless Commit() is called. +template +struct AtomicTransactionalIncrement +{ +public: + typedef std::atomic AtomicT; + ~AtomicTransactionalIncrement() + { + if(m_Atomic) + --(*m_Atomic); + } + T Increment(AtomicT* atomic) + { + m_Atomic = atomic; + return m_Atomic->fetch_add(1); + } + void Commit() + { + m_Atomic = nullptr; + } + +private: + AtomicT* m_Atomic = nullptr; +}; + VkResult VmaAllocator_T::AllocateVulkanMemory(const VkMemoryAllocateInfo* pAllocateInfo, VkDeviceMemory* pMemory) { + AtomicTransactionalIncrement deviceMemoryCountIncrement; + const uint64_t prevDeviceMemoryCount = deviceMemoryCountIncrement.Increment(&m_DeviceMemoryCount); +#if VMA_DEBUG_DONT_EXCEED_MAX_MEMORY_ALLOCATION_COUNT + if(prevDeviceMemoryCount >= m_PhysicalDeviceProperties.limits.maxMemoryAllocationCount) + { + return VK_ERROR_TOO_MANY_OBJECTS; + } +#endif + const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(pAllocateInfo->memoryTypeIndex); - VkResult res; - if(m_HeapSizeLimit[heapIndex] != VK_WHOLE_SIZE) + // HeapSizeLimit is in effect for this heap. + if((m_HeapSizeLimitMask & (1u << heapIndex)) != 0) { - VmaMutexLock lock(m_HeapSizeLimitMutex, m_UseMutex); - if(m_HeapSizeLimit[heapIndex] >= pAllocateInfo->allocationSize) + const VkDeviceSize heapSize = m_MemProps.memoryHeaps[heapIndex].size; + VkDeviceSize blockBytes = m_Budget.m_BlockBytes[heapIndex]; + for(;;) { - res = (*m_VulkanFunctions.vkAllocateMemory)(m_hDevice, pAllocateInfo, GetAllocationCallbacks(), pMemory); - if(res == VK_SUCCESS) + const VkDeviceSize blockBytesAfterAllocation = blockBytes + pAllocateInfo->allocationSize; + if(blockBytesAfterAllocation > heapSize) { - m_HeapSizeLimit[heapIndex] -= pAllocateInfo->allocationSize; + return VK_ERROR_OUT_OF_DEVICE_MEMORY; + } + if(m_Budget.m_BlockBytes[heapIndex].compare_exchange_strong(blockBytes, blockBytesAfterAllocation)) + { + break; } - } - else - { - res = VK_ERROR_OUT_OF_DEVICE_MEMORY; } } else { - res = (*m_VulkanFunctions.vkAllocateMemory)(m_hDevice, pAllocateInfo, GetAllocationCallbacks(), pMemory); + m_Budget.m_BlockBytes[heapIndex] += pAllocateInfo->allocationSize; } - if(res == VK_SUCCESS && m_DeviceMemoryCallbacks.pfnAllocate != VMA_NULL) + // VULKAN CALL vkAllocateMemory. + VkResult res = (*m_VulkanFunctions.vkAllocateMemory)(m_hDevice, pAllocateInfo, GetAllocationCallbacks(), pMemory); + + if(res == VK_SUCCESS) { - (*m_DeviceMemoryCallbacks.pfnAllocate)(this, pAllocateInfo->memoryTypeIndex, *pMemory, pAllocateInfo->allocationSize); +#if VMA_MEMORY_BUDGET + ++m_Budget.m_OperationsSinceBudgetFetch; +#endif + + // Informative callback. + if(m_DeviceMemoryCallbacks.pfnAllocate != VMA_NULL) + { + (*m_DeviceMemoryCallbacks.pfnAllocate)(this, pAllocateInfo->memoryTypeIndex, *pMemory, pAllocateInfo->allocationSize, m_DeviceMemoryCallbacks.pUserData); + } + + deviceMemoryCountIncrement.Commit(); + } + else + { + m_Budget.m_BlockBytes[heapIndex] -= pAllocateInfo->allocationSize; } return res; @@ -8293,18 +15733,79 @@ VkResult VmaAllocator_T::AllocateVulkanMemory(const VkMemoryAllocateInfo* pAlloc void VmaAllocator_T::FreeVulkanMemory(uint32_t memoryType, VkDeviceSize size, VkDeviceMemory hMemory) { + // Informative callback. if(m_DeviceMemoryCallbacks.pfnFree != VMA_NULL) { - (*m_DeviceMemoryCallbacks.pfnFree)(this, memoryType, hMemory, size); + (*m_DeviceMemoryCallbacks.pfnFree)(this, memoryType, hMemory, size, m_DeviceMemoryCallbacks.pUserData); } + // VULKAN CALL vkFreeMemory. (*m_VulkanFunctions.vkFreeMemory)(m_hDevice, hMemory, GetAllocationCallbacks()); - const uint32_t heapIndex = MemoryTypeIndexToHeapIndex(memoryType); - if(m_HeapSizeLimit[heapIndex] != VK_WHOLE_SIZE) + m_Budget.m_BlockBytes[MemoryTypeIndexToHeapIndex(memoryType)] -= size; + + --m_DeviceMemoryCount; +} + +VkResult VmaAllocator_T::BindVulkanBuffer( + VkDeviceMemory memory, + VkDeviceSize memoryOffset, + VkBuffer buffer, + const void* pNext) +{ + if(pNext != VMA_NULL) { - VmaMutexLock lock(m_HeapSizeLimitMutex, m_UseMutex); - m_HeapSizeLimit[heapIndex] += size; +#if VMA_VULKAN_VERSION >= 1001000 || VMA_BIND_MEMORY2 + if((m_UseKhrBindMemory2 || m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0)) && + m_VulkanFunctions.vkBindBufferMemory2KHR != VMA_NULL) + { + VkBindBufferMemoryInfoKHR bindBufferMemoryInfo = { VK_STRUCTURE_TYPE_BIND_BUFFER_MEMORY_INFO_KHR }; + bindBufferMemoryInfo.pNext = pNext; + bindBufferMemoryInfo.buffer = buffer; + bindBufferMemoryInfo.memory = memory; + bindBufferMemoryInfo.memoryOffset = memoryOffset; + return (*m_VulkanFunctions.vkBindBufferMemory2KHR)(m_hDevice, 1, &bindBufferMemoryInfo); + } + else +#endif // #if VMA_VULKAN_VERSION >= 1001000 || VMA_BIND_MEMORY2 + { + return VK_ERROR_EXTENSION_NOT_PRESENT; + } + } + else + { + return (*m_VulkanFunctions.vkBindBufferMemory)(m_hDevice, buffer, memory, memoryOffset); + } +} + +VkResult VmaAllocator_T::BindVulkanImage( + VkDeviceMemory memory, + VkDeviceSize memoryOffset, + VkImage image, + const void* pNext) +{ + if(pNext != VMA_NULL) + { +#if VMA_VULKAN_VERSION >= 1001000 || VMA_BIND_MEMORY2 + if((m_UseKhrBindMemory2 || m_VulkanApiVersion >= VK_MAKE_VERSION(1, 1, 0)) && + m_VulkanFunctions.vkBindImageMemory2KHR != VMA_NULL) + { + VkBindImageMemoryInfoKHR bindBufferMemoryInfo = { VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_INFO_KHR }; + bindBufferMemoryInfo.pNext = pNext; + bindBufferMemoryInfo.image = image; + bindBufferMemoryInfo.memory = memory; + bindBufferMemoryInfo.memoryOffset = memoryOffset; + return (*m_VulkanFunctions.vkBindImageMemory2KHR)(m_hDevice, 1, &bindBufferMemoryInfo); + } + else +#endif // #if VMA_BIND_MEMORY2 + { + return VK_ERROR_EXTENSION_NOT_PRESENT; + } + } + else + { + return (*m_VulkanFunctions.vkBindImageMemory)(m_hDevice, image, memory, memoryOffset); } } @@ -8356,23 +15857,23 @@ void VmaAllocator_T::Unmap(VmaAllocation hAllocation) } } -VkResult VmaAllocator_T::BindBufferMemory(VmaAllocation hAllocation, VkBuffer hBuffer) +VkResult VmaAllocator_T::BindBufferMemory( + VmaAllocation hAllocation, + VkDeviceSize allocationLocalOffset, + VkBuffer hBuffer, + const void* pNext) { VkResult res = VK_SUCCESS; switch(hAllocation->GetType()) { case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED: - res = GetVulkanFunctions().vkBindBufferMemory( - m_hDevice, - hBuffer, - hAllocation->GetMemory(), - 0); //memoryOffset + res = BindVulkanBuffer(hAllocation->GetMemory(), allocationLocalOffset, hBuffer, pNext); break; case VmaAllocation_T::ALLOCATION_TYPE_BLOCK: { - VmaDeviceMemoryBlock* pBlock = hAllocation->GetBlock(); + VmaDeviceMemoryBlock* const pBlock = hAllocation->GetBlock(); VMA_ASSERT(pBlock && "Binding buffer to allocation that doesn't belong to any block. Is the allocation lost?"); - res = pBlock->BindBufferMemory(this, hAllocation, hBuffer); + res = pBlock->BindBufferMemory(this, hAllocation, allocationLocalOffset, hBuffer, pNext); break; } default: @@ -8381,23 +15882,23 @@ VkResult VmaAllocator_T::BindBufferMemory(VmaAllocation hAllocation, VkBuffer hB return res; } -VkResult VmaAllocator_T::BindImageMemory(VmaAllocation hAllocation, VkImage hImage) +VkResult VmaAllocator_T::BindImageMemory( + VmaAllocation hAllocation, + VkDeviceSize allocationLocalOffset, + VkImage hImage, + const void* pNext) { VkResult res = VK_SUCCESS; switch(hAllocation->GetType()) { case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED: - res = GetVulkanFunctions().vkBindImageMemory( - m_hDevice, - hImage, - hAllocation->GetMemory(), - 0); //memoryOffset + res = BindVulkanImage(hAllocation->GetMemory(), allocationLocalOffset, hImage, pNext); break; case VmaAllocation_T::ALLOCATION_TYPE_BLOCK: { VmaDeviceMemoryBlock* pBlock = hAllocation->GetBlock(); VMA_ASSERT(pBlock && "Binding image to allocation that doesn't belong to any block. Is the allocation lost?"); - res = pBlock->BindImageMemory(this, hAllocation, hImage); + res = pBlock->BindImageMemory(this, hAllocation, allocationLocalOffset, hImage, pNext); break; } default: @@ -8406,31 +15907,285 @@ VkResult VmaAllocator_T::BindImageMemory(VmaAllocation hAllocation, VkImage hIma return res; } -void VmaAllocator_T::FreeDedicatedMemory(VmaAllocation allocation) +VkResult VmaAllocator_T::FlushOrInvalidateAllocation( + VmaAllocation hAllocation, + VkDeviceSize offset, VkDeviceSize size, + VMA_CACHE_OPERATION op) +{ + VkResult res = VK_SUCCESS; + + VkMappedMemoryRange memRange = {}; + if(GetFlushOrInvalidateRange(hAllocation, offset, size, memRange)) + { + switch(op) + { + case VMA_CACHE_FLUSH: + res = (*GetVulkanFunctions().vkFlushMappedMemoryRanges)(m_hDevice, 1, &memRange); + break; + case VMA_CACHE_INVALIDATE: + res = (*GetVulkanFunctions().vkInvalidateMappedMemoryRanges)(m_hDevice, 1, &memRange); + break; + default: + VMA_ASSERT(0); + } + } + // else: Just ignore this call. + return res; +} + +VkResult VmaAllocator_T::FlushOrInvalidateAllocations( + uint32_t allocationCount, + const VmaAllocation* allocations, + const VkDeviceSize* offsets, const VkDeviceSize* sizes, + VMA_CACHE_OPERATION op) +{ + typedef VmaStlAllocator RangeAllocator; + typedef VmaSmallVector RangeVector; + RangeVector ranges = RangeVector(RangeAllocator(GetAllocationCallbacks())); + + for(uint32_t allocIndex = 0; allocIndex < allocationCount; ++allocIndex) + { + const VmaAllocation alloc = allocations[allocIndex]; + const VkDeviceSize offset = offsets != VMA_NULL ? offsets[allocIndex] : 0; + const VkDeviceSize size = sizes != VMA_NULL ? sizes[allocIndex] : VK_WHOLE_SIZE; + VkMappedMemoryRange newRange; + if(GetFlushOrInvalidateRange(alloc, offset, size, newRange)) + { + ranges.push_back(newRange); + } + } + + VkResult res = VK_SUCCESS; + if(!ranges.empty()) + { + switch(op) + { + case VMA_CACHE_FLUSH: + res = (*GetVulkanFunctions().vkFlushMappedMemoryRanges)(m_hDevice, (uint32_t)ranges.size(), ranges.data()); + break; + case VMA_CACHE_INVALIDATE: + res = (*GetVulkanFunctions().vkInvalidateMappedMemoryRanges)(m_hDevice, (uint32_t)ranges.size(), ranges.data()); + break; + default: + VMA_ASSERT(0); + } + } + // else: Just ignore this call. + return res; +} + +void VmaAllocator_T::FreeDedicatedMemory(const VmaAllocation allocation) { VMA_ASSERT(allocation && allocation->GetType() == VmaAllocation_T::ALLOCATION_TYPE_DEDICATED); const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex(); { - VmaMutexLock lock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex); - AllocationVectorType* const pDedicatedAllocations = m_pDedicatedAllocations[memTypeIndex]; - VMA_ASSERT(pDedicatedAllocations); - bool success = VmaVectorRemoveSorted(*pDedicatedAllocations, allocation); - VMA_ASSERT(success); + VmaMutexLockWrite lock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex); + DedicatedAllocationLinkedList& dedicatedAllocations = m_DedicatedAllocations[memTypeIndex]; + dedicatedAllocations.Remove(allocation); } VkDeviceMemory hMemory = allocation->GetMemory(); - + + /* + There is no need to call this, because Vulkan spec allows to skip vkUnmapMemory + before vkFreeMemory. + if(allocation->GetMappedData() != VMA_NULL) { (*m_VulkanFunctions.vkUnmapMemory)(m_hDevice, hMemory); } - + */ + FreeVulkanMemory(memTypeIndex, allocation->GetSize(), hMemory); VMA_DEBUG_LOG(" Freed DedicatedMemory MemoryTypeIndex=%u", memTypeIndex); } +uint32_t VmaAllocator_T::CalculateGpuDefragmentationMemoryTypeBits() const +{ + VkBufferCreateInfo dummyBufCreateInfo; + VmaFillGpuDefragmentationBufferCreateInfo(dummyBufCreateInfo); + + uint32_t memoryTypeBits = 0; + + // Create buffer. + VkBuffer buf = VK_NULL_HANDLE; + VkResult res = (*GetVulkanFunctions().vkCreateBuffer)( + m_hDevice, &dummyBufCreateInfo, GetAllocationCallbacks(), &buf); + if(res == VK_SUCCESS) + { + // Query for supported memory types. + VkMemoryRequirements memReq; + (*GetVulkanFunctions().vkGetBufferMemoryRequirements)(m_hDevice, buf, &memReq); + memoryTypeBits = memReq.memoryTypeBits; + + // Destroy buffer. + (*GetVulkanFunctions().vkDestroyBuffer)(m_hDevice, buf, GetAllocationCallbacks()); + } + + return memoryTypeBits; +} + +uint32_t VmaAllocator_T::CalculateGlobalMemoryTypeBits() const +{ + // Make sure memory information is already fetched. + VMA_ASSERT(GetMemoryTypeCount() > 0); + + uint32_t memoryTypeBits = UINT32_MAX; + + if(!m_UseAmdDeviceCoherentMemory) + { + // Exclude memory types that have VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD. + for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex) + { + if((m_MemProps.memoryTypes[memTypeIndex].propertyFlags & VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD_COPY) != 0) + { + memoryTypeBits &= ~(1u << memTypeIndex); + } + } + } + + return memoryTypeBits; +} + +bool VmaAllocator_T::GetFlushOrInvalidateRange( + VmaAllocation allocation, + VkDeviceSize offset, VkDeviceSize size, + VkMappedMemoryRange& outRange) const +{ + const uint32_t memTypeIndex = allocation->GetMemoryTypeIndex(); + if(size > 0 && IsMemoryTypeNonCoherent(memTypeIndex)) + { + const VkDeviceSize nonCoherentAtomSize = m_PhysicalDeviceProperties.limits.nonCoherentAtomSize; + const VkDeviceSize allocationSize = allocation->GetSize(); + VMA_ASSERT(offset <= allocationSize); + + outRange.sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE; + outRange.pNext = VMA_NULL; + outRange.memory = allocation->GetMemory(); + + switch(allocation->GetType()) + { + case VmaAllocation_T::ALLOCATION_TYPE_DEDICATED: + outRange.offset = VmaAlignDown(offset, nonCoherentAtomSize); + if(size == VK_WHOLE_SIZE) + { + outRange.size = allocationSize - outRange.offset; + } + else + { + VMA_ASSERT(offset + size <= allocationSize); + outRange.size = VMA_MIN( + VmaAlignUp(size + (offset - outRange.offset), nonCoherentAtomSize), + allocationSize - outRange.offset); + } + break; + case VmaAllocation_T::ALLOCATION_TYPE_BLOCK: + { + // 1. Still within this allocation. + outRange.offset = VmaAlignDown(offset, nonCoherentAtomSize); + if(size == VK_WHOLE_SIZE) + { + size = allocationSize - offset; + } + else + { + VMA_ASSERT(offset + size <= allocationSize); + } + outRange.size = VmaAlignUp(size + (offset - outRange.offset), nonCoherentAtomSize); + + // 2. Adjust to whole block. + const VkDeviceSize allocationOffset = allocation->GetOffset(); + VMA_ASSERT(allocationOffset % nonCoherentAtomSize == 0); + const VkDeviceSize blockSize = allocation->GetBlock()->m_pMetadata->GetSize(); + outRange.offset += allocationOffset; + outRange.size = VMA_MIN(outRange.size, blockSize - outRange.offset); + + break; + } + default: + VMA_ASSERT(0); + } + return true; + } + return false; +} + +#if VMA_MEMORY_BUDGET + +void VmaAllocator_T::UpdateVulkanBudget() +{ + VMA_ASSERT(m_UseExtMemoryBudget); + + VkPhysicalDeviceMemoryProperties2KHR memProps = { VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_PROPERTIES_2_KHR }; + + VkPhysicalDeviceMemoryBudgetPropertiesEXT budgetProps = { VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_BUDGET_PROPERTIES_EXT }; + VmaPnextChainPushFront(&memProps, &budgetProps); + + GetVulkanFunctions().vkGetPhysicalDeviceMemoryProperties2KHR(m_PhysicalDevice, &memProps); + + { + VmaMutexLockWrite lockWrite(m_Budget.m_BudgetMutex, m_UseMutex); + + for(uint32_t heapIndex = 0; heapIndex < GetMemoryHeapCount(); ++heapIndex) + { + m_Budget.m_VulkanUsage[heapIndex] = budgetProps.heapUsage[heapIndex]; + m_Budget.m_VulkanBudget[heapIndex] = budgetProps.heapBudget[heapIndex]; + m_Budget.m_BlockBytesAtBudgetFetch[heapIndex] = m_Budget.m_BlockBytes[heapIndex].load(); + + // Some bugged drivers return the budget incorrectly, e.g. 0 or much bigger than heap size. + if(m_Budget.m_VulkanBudget[heapIndex] == 0) + { + m_Budget.m_VulkanBudget[heapIndex] = m_MemProps.memoryHeaps[heapIndex].size * 8 / 10; // 80% heuristics. + } + else if(m_Budget.m_VulkanBudget[heapIndex] > m_MemProps.memoryHeaps[heapIndex].size) + { + m_Budget.m_VulkanBudget[heapIndex] = m_MemProps.memoryHeaps[heapIndex].size; + } + if(m_Budget.m_VulkanUsage[heapIndex] == 0 && m_Budget.m_BlockBytesAtBudgetFetch[heapIndex] > 0) + { + m_Budget.m_VulkanUsage[heapIndex] = m_Budget.m_BlockBytesAtBudgetFetch[heapIndex]; + } + } + m_Budget.m_OperationsSinceBudgetFetch = 0; + } +} + +#endif // #if VMA_MEMORY_BUDGET + +void VmaAllocator_T::FillAllocation(const VmaAllocation hAllocation, uint8_t pattern) +{ + if(VMA_DEBUG_INITIALIZE_ALLOCATIONS && + !hAllocation->CanBecomeLost() && + (m_MemProps.memoryTypes[hAllocation->GetMemoryTypeIndex()].propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0) + { + void* pData = VMA_NULL; + VkResult res = Map(hAllocation, &pData); + if(res == VK_SUCCESS) + { + memset(pData, (int)pattern, (size_t)hAllocation->GetSize()); + FlushOrInvalidateAllocation(hAllocation, 0, VK_WHOLE_SIZE, VMA_CACHE_FLUSH); + Unmap(hAllocation); + } + else + { + VMA_ASSERT(0 && "VMA_DEBUG_INITIALIZE_ALLOCATIONS is enabled, but couldn't map memory to fill allocation."); + } + } +} + +uint32_t VmaAllocator_T::GetGpuDefragmentationMemoryTypeBits() +{ + uint32_t memoryTypeBits = m_GpuDefragmentationMemoryTypeBits.load(); + if(memoryTypeBits == UINT32_MAX) + { + memoryTypeBits = CalculateGpuDefragmentationMemoryTypeBits(); + m_GpuDefragmentationMemoryTypeBits.store(memoryTypeBits); + } + return memoryTypeBits; +} + #if VMA_STATS_STRING_ENABLED void VmaAllocator_T::PrintDetailedMap(VmaJsonWriter& json) @@ -8438,10 +16193,9 @@ void VmaAllocator_T::PrintDetailedMap(VmaJsonWriter& json) bool dedicatedAllocationsStarted = false; for(uint32_t memTypeIndex = 0; memTypeIndex < GetMemoryTypeCount(); ++memTypeIndex) { - VmaMutexLock dedicatedAllocationsLock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex); - AllocationVectorType* const pDedicatedAllocVector = m_pDedicatedAllocations[memTypeIndex]; - VMA_ASSERT(pDedicatedAllocVector); - if(pDedicatedAllocVector->empty() == false) + VmaMutexLockRead dedicatedAllocationsLock(m_DedicatedAllocationsMutex[memTypeIndex], m_UseMutex); + DedicatedAllocationLinkedList& dedicatedAllocList = m_DedicatedAllocations[memTypeIndex]; + if(!dedicatedAllocList.IsEmpty()) { if(dedicatedAllocationsStarted == false) { @@ -8453,36 +16207,14 @@ void VmaAllocator_T::PrintDetailedMap(VmaJsonWriter& json) json.BeginString("Type "); json.ContinueString(memTypeIndex); json.EndString(); - + json.BeginArray(); - for(size_t i = 0; i < pDedicatedAllocVector->size(); ++i) + for(VmaAllocation alloc = dedicatedAllocList.Front(); + alloc != VMA_NULL; alloc = dedicatedAllocList.GetNext(alloc)) { - const VmaAllocation hAlloc = (*pDedicatedAllocVector)[i]; json.BeginObject(true); - - json.WriteString("Type"); - json.WriteString(VMA_SUBALLOCATION_TYPE_NAMES[hAlloc->GetSuballocationType()]); - - json.WriteString("Size"); - json.WriteNumber(hAlloc->GetSize()); - - const void* pUserData = hAlloc->GetUserData(); - if(pUserData != VMA_NULL) - { - json.WriteString("UserData"); - if(hAlloc->IsUserDataString()) - { - json.WriteString((const char*)pUserData); - } - else - { - json.BeginString(); - json.ContinueString_Pointer(pUserData); - json.EndString(); - } - } - + alloc->PrintParameters(json); json.EndObject(); } @@ -8520,64 +16252,44 @@ void VmaAllocator_T::PrintDetailedMap(VmaJsonWriter& json) } } + // Custom pools { - VmaMutexLock lock(m_PoolsMutex, m_UseMutex); - const size_t poolCount = m_Pools.size(); - if(poolCount > 0) + VmaMutexLockRead lock(m_PoolsMutex, m_UseMutex); + if(!m_Pools.IsEmpty()) { json.WriteString("Pools"); - json.BeginArray(); - for(size_t poolIndex = 0; poolIndex < poolCount; ++poolIndex) + json.BeginObject(); + for(VmaPool pool = m_Pools.Front(); pool != VMA_NULL; pool = m_Pools.GetNext(pool)) { - m_Pools[poolIndex]->m_BlockVector.PrintDetailedMap(json); + json.BeginString(); + json.ContinueString(pool->GetId()); + json.EndString(); + + pool->m_BlockVector.PrintDetailedMap(json); } - json.EndArray(); + json.EndObject(); } } } #endif // #if VMA_STATS_STRING_ENABLED -static VkResult AllocateMemoryForImage( - VmaAllocator allocator, - VkImage image, - const VmaAllocationCreateInfo* pAllocationCreateInfo, - VmaSuballocationType suballocType, - VmaAllocation* pAllocation) -{ - VMA_ASSERT(allocator && (image != VK_NULL_HANDLE) && pAllocationCreateInfo && pAllocation); - - VkMemoryRequirements vkMemReq = {}; - bool requiresDedicatedAllocation = false; - bool prefersDedicatedAllocation = false; - allocator->GetImageMemoryRequirements(image, vkMemReq, - requiresDedicatedAllocation, prefersDedicatedAllocation); - - return allocator->AllocateMemory( - vkMemReq, - requiresDedicatedAllocation, - prefersDedicatedAllocation, - VK_NULL_HANDLE, // dedicatedBuffer - image, // dedicatedImage - *pAllocationCreateInfo, - suballocType, - pAllocation); -} - //////////////////////////////////////////////////////////////////////////////// // Public interface -VkResult vmaCreateAllocator( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateAllocator( const VmaAllocatorCreateInfo* pCreateInfo, VmaAllocator* pAllocator) { VMA_ASSERT(pCreateInfo && pAllocator); + VMA_ASSERT(pCreateInfo->vulkanApiVersion == 0 || + (VK_VERSION_MAJOR(pCreateInfo->vulkanApiVersion) == 1 && VK_VERSION_MINOR(pCreateInfo->vulkanApiVersion) <= 2)); VMA_DEBUG_LOG("vmaCreateAllocator"); *pAllocator = vma_new(pCreateInfo->pAllocationCallbacks, VmaAllocator_T)(pCreateInfo); - return VK_SUCCESS; + return (*pAllocator)->Init(pCreateInfo); } -void vmaDestroyAllocator( +VMA_CALL_PRE void VMA_CALL_POST vmaDestroyAllocator( VmaAllocator allocator) { if(allocator != VK_NULL_HANDLE) @@ -8588,7 +16300,15 @@ void vmaDestroyAllocator( } } -void vmaGetPhysicalDeviceProperties( +VMA_CALL_PRE void VMA_CALL_POST vmaGetAllocatorInfo(VmaAllocator allocator, VmaAllocatorInfo* pAllocatorInfo) +{ + VMA_ASSERT(allocator && pAllocatorInfo); + pAllocatorInfo->instance = allocator->m_hInstance; + pAllocatorInfo->physicalDevice = allocator->GetPhysicalDevice(); + pAllocatorInfo->device = allocator->m_hDevice; +} + +VMA_CALL_PRE void VMA_CALL_POST vmaGetPhysicalDeviceProperties( VmaAllocator allocator, const VkPhysicalDeviceProperties **ppPhysicalDeviceProperties) { @@ -8596,7 +16316,7 @@ void vmaGetPhysicalDeviceProperties( *ppPhysicalDeviceProperties = &allocator->m_PhysicalDeviceProperties; } -void vmaGetMemoryProperties( +VMA_CALL_PRE void VMA_CALL_POST vmaGetMemoryProperties( VmaAllocator allocator, const VkPhysicalDeviceMemoryProperties** ppPhysicalDeviceMemoryProperties) { @@ -8604,7 +16324,7 @@ void vmaGetMemoryProperties( *ppPhysicalDeviceMemoryProperties = &allocator->m_MemProps; } -void vmaGetMemoryTypeProperties( +VMA_CALL_PRE void VMA_CALL_POST vmaGetMemoryTypeProperties( VmaAllocator allocator, uint32_t memoryTypeIndex, VkMemoryPropertyFlags* pFlags) @@ -8614,7 +16334,7 @@ void vmaGetMemoryTypeProperties( *pFlags = allocator->m_MemProps.memoryTypes[memoryTypeIndex].propertyFlags; } -void vmaSetCurrentFrameIndex( +VMA_CALL_PRE void VMA_CALL_POST vmaSetCurrentFrameIndex( VmaAllocator allocator, uint32_t frameIndex) { @@ -8626,7 +16346,7 @@ void vmaSetCurrentFrameIndex( allocator->SetCurrentFrameIndex(frameIndex); } -void vmaCalculateStats( +VMA_CALL_PRE void VMA_CALL_POST vmaCalculateStats( VmaAllocator allocator, VmaStats* pStats) { @@ -8635,9 +16355,18 @@ void vmaCalculateStats( allocator->CalculateStats(pStats); } +VMA_CALL_PRE void VMA_CALL_POST vmaGetBudget( + VmaAllocator allocator, + VmaBudget* pBudget) +{ + VMA_ASSERT(allocator && pBudget); + VMA_DEBUG_GLOBAL_MUTEX_LOCK + allocator->GetBudget(pBudget, 0, allocator->GetMemoryHeapCount()); +} + #if VMA_STATS_STRING_ENABLED -void vmaBuildStatsString( +VMA_CALL_PRE void VMA_CALL_POST vmaBuildStatsString( VmaAllocator allocator, char** ppStatsString, VkBool32 detailedMap) @@ -8650,12 +16379,15 @@ void vmaBuildStatsString( VmaJsonWriter json(allocator->GetAllocationCallbacks(), sb); json.BeginObject(); + VmaBudget budget[VK_MAX_MEMORY_HEAPS]; + allocator->GetBudget(budget, 0, allocator->GetMemoryHeapCount()); + VmaStats stats; allocator->CalculateStats(&stats); json.WriteString("Total"); VmaPrintStatInfo(json, stats.total); - + for(uint32_t heapIndex = 0; heapIndex < allocator->GetMemoryHeapCount(); ++heapIndex) { json.BeginString("Heap "); @@ -8674,6 +16406,20 @@ void vmaBuildStatsString( } json.EndArray(); + json.WriteString("Budget"); + json.BeginObject(); + { + json.WriteString("BlockBytes"); + json.WriteNumber(budget[heapIndex].blockBytes); + json.WriteString("AllocationBytes"); + json.WriteNumber(budget[heapIndex].allocationBytes); + json.WriteString("Usage"); + json.WriteNumber(budget[heapIndex].usage); + json.WriteString("Budget"); + json.WriteNumber(budget[heapIndex].budget); + } + json.EndObject(); + if(stats.memoryHeap[heapIndex].blockCount > 0) { json.WriteString("Stats"); @@ -8713,6 +16459,22 @@ void vmaBuildStatsString( { json.WriteString("LAZILY_ALLOCATED"); } +#if VMA_VULKAN_VERSION >= 1001000 + if((flags & VK_MEMORY_PROPERTY_PROTECTED_BIT) != 0) + { + json.WriteString("PROTECTED"); + } +#endif // #if VMA_VULKAN_VERSION >= 1001000 +#if VK_AMD_device_coherent_memory + if((flags & VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD_COPY) != 0) + { + json.WriteString("DEVICE_COHERENT"); + } + if((flags & VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD_COPY) != 0) + { + json.WriteString("DEVICE_UNCACHED"); + } +#endif // #if VK_AMD_device_coherent_memory json.EndArray(); if(stats.memoryType[typeIndex].blockCount > 0) @@ -8745,7 +16507,7 @@ void vmaBuildStatsString( *ppStatsString = pChars; } -void vmaFreeStatsString( +VMA_CALL_PRE void VMA_CALL_POST vmaFreeStatsString( VmaAllocator allocator, char* pStatsString) { @@ -8762,7 +16524,7 @@ void vmaFreeStatsString( /* This function is not protected by any mutex because it just reads immutable data. */ -VkResult vmaFindMemoryTypeIndex( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndex( VmaAllocator allocator, uint32_t memoryTypeBits, const VmaAllocationCreateInfo* pAllocationCreateInfo, @@ -8772,13 +16534,16 @@ VkResult vmaFindMemoryTypeIndex( VMA_ASSERT(pAllocationCreateInfo != VMA_NULL); VMA_ASSERT(pMemoryTypeIndex != VMA_NULL); + memoryTypeBits &= allocator->GetGlobalMemoryTypeBits(); + if(pAllocationCreateInfo->memoryTypeBits != 0) { memoryTypeBits &= pAllocationCreateInfo->memoryTypeBits; } - + uint32_t requiredFlags = pAllocationCreateInfo->requiredFlags; uint32_t preferredFlags = pAllocationCreateInfo->preferredFlags; + uint32_t notPreferredFlags = 0; // Convert usage to requiredFlags and preferredFlags. switch(pAllocationCreateInfo->usage) @@ -8786,23 +16551,43 @@ VkResult vmaFindMemoryTypeIndex( case VMA_MEMORY_USAGE_UNKNOWN: break; case VMA_MEMORY_USAGE_GPU_ONLY: - preferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT; + if(!allocator->IsIntegratedGpu() || (preferredFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0) + { + preferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT; + } break; case VMA_MEMORY_USAGE_CPU_ONLY: requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT; break; case VMA_MEMORY_USAGE_CPU_TO_GPU: requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT; - preferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT; + if(!allocator->IsIntegratedGpu() || (preferredFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0) + { + preferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT; + } break; case VMA_MEMORY_USAGE_GPU_TO_CPU: requiredFlags |= VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT; - preferredFlags |= VK_MEMORY_PROPERTY_HOST_COHERENT_BIT | VK_MEMORY_PROPERTY_HOST_CACHED_BIT; + preferredFlags |= VK_MEMORY_PROPERTY_HOST_CACHED_BIT; + break; + case VMA_MEMORY_USAGE_CPU_COPY: + notPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT; + break; + case VMA_MEMORY_USAGE_GPU_LAZILY_ALLOCATED: + requiredFlags |= VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT; break; default: + VMA_ASSERT(0); break; } + // Avoid DEVICE_COHERENT unless explicitly requested. + if(((pAllocationCreateInfo->requiredFlags | pAllocationCreateInfo->preferredFlags) & + (VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD_COPY | VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD_COPY)) == 0) + { + notPreferredFlags |= VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD_COPY; + } + *pMemoryTypeIndex = UINT32_MAX; uint32_t minCost = UINT32_MAX; for(uint32_t memTypeIndex = 0, memTypeBit = 1; @@ -8818,7 +16603,8 @@ VkResult vmaFindMemoryTypeIndex( if((requiredFlags & ~currFlags) == 0) { // Calculate cost as number of bits from preferredFlags not present in this memory type. - uint32_t currCost = VmaCountBitsSet(preferredFlags & ~currFlags); + uint32_t currCost = VmaCountBitsSet(preferredFlags & ~currFlags) + + VmaCountBitsSet(currFlags & notPreferredFlags); // Remember memory type with lowest cost. if(currCost < minCost) { @@ -8835,7 +16621,7 @@ VkResult vmaFindMemoryTypeIndex( return (*pMemoryTypeIndex != UINT32_MAX) ? VK_SUCCESS : VK_ERROR_FEATURE_NOT_PRESENT; } -VkResult vmaFindMemoryTypeIndexForBufferInfo( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndexForBufferInfo( VmaAllocator allocator, const VkBufferCreateInfo* pBufferCreateInfo, const VmaAllocationCreateInfo* pAllocationCreateInfo, @@ -8868,7 +16654,7 @@ VkResult vmaFindMemoryTypeIndexForBufferInfo( return res; } -VkResult vmaFindMemoryTypeIndexForImageInfo( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaFindMemoryTypeIndexForImageInfo( VmaAllocator allocator, const VkImageCreateInfo* pImageCreateInfo, const VmaAllocationCreateInfo* pAllocationCreateInfo, @@ -8901,10 +16687,10 @@ VkResult vmaFindMemoryTypeIndexForImageInfo( return res; } -VkResult vmaCreatePool( - VmaAllocator allocator, - const VmaPoolCreateInfo* pCreateInfo, - VmaPool* pPool) +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreatePool( + VmaAllocator allocator, + const VmaPoolCreateInfo* pCreateInfo, + VmaPool* pPool) { VMA_ASSERT(allocator && pCreateInfo && pPool); @@ -8912,10 +16698,19 @@ VkResult vmaCreatePool( VMA_DEBUG_GLOBAL_MUTEX_LOCK - return allocator->CreatePool(pCreateInfo, pPool); + VkResult res = allocator->CreatePool(pCreateInfo, pPool); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordCreatePool(allocator->GetCurrentFrameIndex(), *pCreateInfo, *pPool); + } +#endif + + return res; } -void vmaDestroyPool( +VMA_CALL_PRE void VMA_CALL_POST vmaDestroyPool( VmaAllocator allocator, VmaPool pool) { @@ -8930,10 +16725,17 @@ void vmaDestroyPool( VMA_DEBUG_GLOBAL_MUTEX_LOCK +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordDestroyPool(allocator->GetCurrentFrameIndex(), pool); + } +#endif + allocator->DestroyPool(pool); } -void vmaGetPoolStats( +VMA_CALL_PRE void VMA_CALL_POST vmaGetPoolStats( VmaAllocator allocator, VmaPool pool, VmaPoolStats* pPoolStats) @@ -8945,7 +16747,7 @@ void vmaGetPoolStats( allocator->GetPoolStats(pool, pPoolStats); } -void vmaMakePoolAllocationsLost( +VMA_CALL_PRE void VMA_CALL_POST vmaMakePoolAllocationsLost( VmaAllocator allocator, VmaPool pool, size_t* pLostAllocationCount) @@ -8954,10 +16756,63 @@ void vmaMakePoolAllocationsLost( VMA_DEBUG_GLOBAL_MUTEX_LOCK +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordMakePoolAllocationsLost(allocator->GetCurrentFrameIndex(), pool); + } +#endif + allocator->MakePoolAllocationsLost(pool, pLostAllocationCount); } -VkResult vmaAllocateMemory( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCheckPoolCorruption(VmaAllocator allocator, VmaPool pool) +{ + VMA_ASSERT(allocator && pool); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + VMA_DEBUG_LOG("vmaCheckPoolCorruption"); + + return allocator->CheckPoolCorruption(pool); +} + +VMA_CALL_PRE void VMA_CALL_POST vmaGetPoolName( + VmaAllocator allocator, + VmaPool pool, + const char** ppName) +{ + VMA_ASSERT(allocator && pool && ppName); + + VMA_DEBUG_LOG("vmaGetPoolName"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + *ppName = pool->GetName(); +} + +VMA_CALL_PRE void VMA_CALL_POST vmaSetPoolName( + VmaAllocator allocator, + VmaPool pool, + const char* pName) +{ + VMA_ASSERT(allocator && pool); + + VMA_DEBUG_LOG("vmaSetPoolName"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + pool->SetName(pName); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordSetPoolName(allocator->GetCurrentFrameIndex(), pool, pName); + } +#endif +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemory( VmaAllocator allocator, const VkMemoryRequirements* pVkMemoryRequirements, const VmaAllocationCreateInfo* pCreateInfo, @@ -8970,25 +16825,92 @@ VkResult vmaAllocateMemory( VMA_DEBUG_GLOBAL_MUTEX_LOCK - VkResult result = allocator->AllocateMemory( + VkResult result = allocator->AllocateMemory( *pVkMemoryRequirements, false, // requiresDedicatedAllocation false, // prefersDedicatedAllocation VK_NULL_HANDLE, // dedicatedBuffer + UINT32_MAX, // dedicatedBufferUsage VK_NULL_HANDLE, // dedicatedImage *pCreateInfo, VMA_SUBALLOCATION_TYPE_UNKNOWN, + 1, // allocationCount pAllocation); - if(pAllocationInfo && result == VK_SUCCESS) +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordAllocateMemory( + allocator->GetCurrentFrameIndex(), + *pVkMemoryRequirements, + *pCreateInfo, + *pAllocation); + } +#endif + + if(pAllocationInfo != VMA_NULL && result == VK_SUCCESS) { allocator->GetAllocationInfo(*pAllocation, pAllocationInfo); } - return result; + return result; } -VkResult vmaAllocateMemoryForBuffer( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemoryPages( + VmaAllocator allocator, + const VkMemoryRequirements* pVkMemoryRequirements, + const VmaAllocationCreateInfo* pCreateInfo, + size_t allocationCount, + VmaAllocation* pAllocations, + VmaAllocationInfo* pAllocationInfo) +{ + if(allocationCount == 0) + { + return VK_SUCCESS; + } + + VMA_ASSERT(allocator && pVkMemoryRequirements && pCreateInfo && pAllocations); + + VMA_DEBUG_LOG("vmaAllocateMemoryPages"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + VkResult result = allocator->AllocateMemory( + *pVkMemoryRequirements, + false, // requiresDedicatedAllocation + false, // prefersDedicatedAllocation + VK_NULL_HANDLE, // dedicatedBuffer + UINT32_MAX, // dedicatedBufferUsage + VK_NULL_HANDLE, // dedicatedImage + *pCreateInfo, + VMA_SUBALLOCATION_TYPE_UNKNOWN, + allocationCount, + pAllocations); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordAllocateMemoryPages( + allocator->GetCurrentFrameIndex(), + *pVkMemoryRequirements, + *pCreateInfo, + (uint64_t)allocationCount, + pAllocations); + } +#endif + + if(pAllocationInfo != VMA_NULL && result == VK_SUCCESS) + { + for(size_t i = 0; i < allocationCount; ++i) + { + allocator->GetAllocationInfo(pAllocations[i], pAllocationInfo + i); + } + } + + return result; +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemoryForBuffer( VmaAllocator allocator, VkBuffer buffer, const VmaAllocationCreateInfo* pCreateInfo, @@ -9013,20 +16935,35 @@ VkResult vmaAllocateMemoryForBuffer( requiresDedicatedAllocation, prefersDedicatedAllocation, buffer, // dedicatedBuffer + UINT32_MAX, // dedicatedBufferUsage VK_NULL_HANDLE, // dedicatedImage *pCreateInfo, VMA_SUBALLOCATION_TYPE_BUFFER, + 1, // allocationCount pAllocation); +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordAllocateMemoryForBuffer( + allocator->GetCurrentFrameIndex(), + vkMemReq, + requiresDedicatedAllocation, + prefersDedicatedAllocation, + *pCreateInfo, + *pAllocation); + } +#endif + if(pAllocationInfo && result == VK_SUCCESS) { allocator->GetAllocationInfo(*pAllocation, pAllocationInfo); } - return result; + return result; } -VkResult vmaAllocateMemoryForImage( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaAllocateMemoryForImage( VmaAllocator allocator, VkImage image, const VmaAllocationCreateInfo* pCreateInfo, @@ -9039,35 +16976,104 @@ VkResult vmaAllocateMemoryForImage( VMA_DEBUG_GLOBAL_MUTEX_LOCK - VkResult result = AllocateMemoryForImage( - allocator, - image, - pCreateInfo, + VkMemoryRequirements vkMemReq = {}; + bool requiresDedicatedAllocation = false; + bool prefersDedicatedAllocation = false; + allocator->GetImageMemoryRequirements(image, vkMemReq, + requiresDedicatedAllocation, prefersDedicatedAllocation); + + VkResult result = allocator->AllocateMemory( + vkMemReq, + requiresDedicatedAllocation, + prefersDedicatedAllocation, + VK_NULL_HANDLE, // dedicatedBuffer + UINT32_MAX, // dedicatedBufferUsage + image, // dedicatedImage + *pCreateInfo, VMA_SUBALLOCATION_TYPE_IMAGE_UNKNOWN, + 1, // allocationCount pAllocation); +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordAllocateMemoryForImage( + allocator->GetCurrentFrameIndex(), + vkMemReq, + requiresDedicatedAllocation, + prefersDedicatedAllocation, + *pCreateInfo, + *pAllocation); + } +#endif + if(pAllocationInfo && result == VK_SUCCESS) { allocator->GetAllocationInfo(*pAllocation, pAllocationInfo); } - return result; + return result; } -void vmaFreeMemory( +VMA_CALL_PRE void VMA_CALL_POST vmaFreeMemory( VmaAllocator allocator, VmaAllocation allocation) { - VMA_ASSERT(allocator && allocation); + VMA_ASSERT(allocator); + + if(allocation == VK_NULL_HANDLE) + { + return; + } VMA_DEBUG_LOG("vmaFreeMemory"); VMA_DEBUG_GLOBAL_MUTEX_LOCK - allocator->FreeMemory(allocation); +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordFreeMemory( + allocator->GetCurrentFrameIndex(), + allocation); + } +#endif + + allocator->FreeMemory( + 1, // allocationCount + &allocation); } -void vmaGetAllocationInfo( +VMA_CALL_PRE void VMA_CALL_POST vmaFreeMemoryPages( + VmaAllocator allocator, + size_t allocationCount, + const VmaAllocation* pAllocations) +{ + if(allocationCount == 0) + { + return; + } + + VMA_ASSERT(allocator); + + VMA_DEBUG_LOG("vmaFreeMemoryPages"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordFreeMemoryPages( + allocator->GetCurrentFrameIndex(), + (uint64_t)allocationCount, + pAllocations); + } +#endif + + allocator->FreeMemory(allocationCount, pAllocations); +} + +VMA_CALL_PRE void VMA_CALL_POST vmaGetAllocationInfo( VmaAllocator allocator, VmaAllocation allocation, VmaAllocationInfo* pAllocationInfo) @@ -9076,10 +17082,19 @@ void vmaGetAllocationInfo( VMA_DEBUG_GLOBAL_MUTEX_LOCK +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordGetAllocationInfo( + allocator->GetCurrentFrameIndex(), + allocation); + } +#endif + allocator->GetAllocationInfo(allocation, pAllocationInfo); } -VkBool32 vmaTouchAllocation( +VMA_CALL_PRE VkBool32 VMA_CALL_POST vmaTouchAllocation( VmaAllocator allocator, VmaAllocation allocation) { @@ -9087,10 +17102,19 @@ VkBool32 vmaTouchAllocation( VMA_DEBUG_GLOBAL_MUTEX_LOCK +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordTouchAllocation( + allocator->GetCurrentFrameIndex(), + allocation); + } +#endif + return allocator->TouchAllocation(allocation); } -void vmaSetAllocationUserData( +VMA_CALL_PRE void VMA_CALL_POST vmaSetAllocationUserData( VmaAllocator allocator, VmaAllocation allocation, void* pUserData) @@ -9100,9 +17124,19 @@ void vmaSetAllocationUserData( VMA_DEBUG_GLOBAL_MUTEX_LOCK allocation->SetUserData(allocator, pUserData); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordSetAllocationUserData( + allocator->GetCurrentFrameIndex(), + allocation, + pUserData); + } +#endif } -void vmaCreateLostAllocation( +VMA_CALL_PRE void VMA_CALL_POST vmaCreateLostAllocation( VmaAllocator allocator, VmaAllocation* pAllocation) { @@ -9111,9 +17145,18 @@ void vmaCreateLostAllocation( VMA_DEBUG_GLOBAL_MUTEX_LOCK; allocator->CreateLostAllocation(pAllocation); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordCreateLostAllocation( + allocator->GetCurrentFrameIndex(), + *pAllocation); + } +#endif } -VkResult vmaMapMemory( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaMapMemory( VmaAllocator allocator, VmaAllocation allocation, void** ppData) @@ -9122,10 +17165,21 @@ VkResult vmaMapMemory( VMA_DEBUG_GLOBAL_MUTEX_LOCK - return allocator->Map(allocation, ppData); + VkResult res = allocator->Map(allocation, ppData); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordMapMemory( + allocator->GetCurrentFrameIndex(), + allocation); + } +#endif + + return res; } -void vmaUnmapMemory( +VMA_CALL_PRE void VMA_CALL_POST vmaUnmapMemory( VmaAllocator allocator, VmaAllocation allocation) { @@ -9133,27 +17187,273 @@ void vmaUnmapMemory( VMA_DEBUG_GLOBAL_MUTEX_LOCK +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordUnmapMemory( + allocator->GetCurrentFrameIndex(), + allocation); + } +#endif + allocator->Unmap(allocation); } -VkResult vmaDefragment( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaFlushAllocation(VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size) +{ + VMA_ASSERT(allocator && allocation); + + VMA_DEBUG_LOG("vmaFlushAllocation"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + const VkResult res = allocator->FlushOrInvalidateAllocation(allocation, offset, size, VMA_CACHE_FLUSH); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordFlushAllocation( + allocator->GetCurrentFrameIndex(), + allocation, offset, size); + } +#endif + + return res; +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaInvalidateAllocation(VmaAllocator allocator, VmaAllocation allocation, VkDeviceSize offset, VkDeviceSize size) +{ + VMA_ASSERT(allocator && allocation); + + VMA_DEBUG_LOG("vmaInvalidateAllocation"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + const VkResult res = allocator->FlushOrInvalidateAllocation(allocation, offset, size, VMA_CACHE_INVALIDATE); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordInvalidateAllocation( + allocator->GetCurrentFrameIndex(), + allocation, offset, size); + } +#endif + + return res; +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaFlushAllocations( VmaAllocator allocator, - VmaAllocation* pAllocations, + uint32_t allocationCount, + const VmaAllocation* allocations, + const VkDeviceSize* offsets, + const VkDeviceSize* sizes) +{ + VMA_ASSERT(allocator); + + if(allocationCount == 0) + { + return VK_SUCCESS; + } + + VMA_ASSERT(allocations); + + VMA_DEBUG_LOG("vmaFlushAllocations"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + const VkResult res = allocator->FlushOrInvalidateAllocations(allocationCount, allocations, offsets, sizes, VMA_CACHE_FLUSH); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + //TODO + } +#endif + + return res; +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaInvalidateAllocations( + VmaAllocator allocator, + uint32_t allocationCount, + const VmaAllocation* allocations, + const VkDeviceSize* offsets, + const VkDeviceSize* sizes) +{ + VMA_ASSERT(allocator); + + if(allocationCount == 0) + { + return VK_SUCCESS; + } + + VMA_ASSERT(allocations); + + VMA_DEBUG_LOG("vmaInvalidateAllocations"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + const VkResult res = allocator->FlushOrInvalidateAllocations(allocationCount, allocations, offsets, sizes, VMA_CACHE_INVALIDATE); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + //TODO + } +#endif + + return res; +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCheckCorruption(VmaAllocator allocator, uint32_t memoryTypeBits) +{ + VMA_ASSERT(allocator); + + VMA_DEBUG_LOG("vmaCheckCorruption"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + return allocator->CheckCorruption(memoryTypeBits); +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaDefragment( + VmaAllocator allocator, + const VmaAllocation* pAllocations, size_t allocationCount, VkBool32* pAllocationsChanged, const VmaDefragmentationInfo *pDefragmentationInfo, VmaDefragmentationStats* pDefragmentationStats) { - VMA_ASSERT(allocator && pAllocations); + // Deprecated interface, reimplemented using new one. - VMA_DEBUG_LOG("vmaDefragment"); + VmaDefragmentationInfo2 info2 = {}; + info2.allocationCount = (uint32_t)allocationCount; + info2.pAllocations = pAllocations; + info2.pAllocationsChanged = pAllocationsChanged; + if(pDefragmentationInfo != VMA_NULL) + { + info2.maxCpuAllocationsToMove = pDefragmentationInfo->maxAllocationsToMove; + info2.maxCpuBytesToMove = pDefragmentationInfo->maxBytesToMove; + } + else + { + info2.maxCpuAllocationsToMove = UINT32_MAX; + info2.maxCpuBytesToMove = VK_WHOLE_SIZE; + } + // info2.flags, maxGpuAllocationsToMove, maxGpuBytesToMove, commandBuffer deliberately left zero. + + VmaDefragmentationContext ctx; + VkResult res = vmaDefragmentationBegin(allocator, &info2, pDefragmentationStats, &ctx); + if(res == VK_NOT_READY) + { + res = vmaDefragmentationEnd( allocator, ctx); + } + return res; +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaDefragmentationBegin( + VmaAllocator allocator, + const VmaDefragmentationInfo2* pInfo, + VmaDefragmentationStats* pStats, + VmaDefragmentationContext *pContext) +{ + VMA_ASSERT(allocator && pInfo && pContext); + + // Degenerate case: Nothing to defragment. + if(pInfo->allocationCount == 0 && pInfo->poolCount == 0) + { + return VK_SUCCESS; + } + + VMA_ASSERT(pInfo->allocationCount == 0 || pInfo->pAllocations != VMA_NULL); + VMA_ASSERT(pInfo->poolCount == 0 || pInfo->pPools != VMA_NULL); + VMA_HEAVY_ASSERT(VmaValidatePointerArray(pInfo->allocationCount, pInfo->pAllocations)); + VMA_HEAVY_ASSERT(VmaValidatePointerArray(pInfo->poolCount, pInfo->pPools)); + + VMA_DEBUG_LOG("vmaDefragmentationBegin"); VMA_DEBUG_GLOBAL_MUTEX_LOCK - return allocator->Defragment(pAllocations, allocationCount, pAllocationsChanged, pDefragmentationInfo, pDefragmentationStats); + VkResult res = allocator->DefragmentationBegin(*pInfo, pStats, pContext); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordDefragmentationBegin( + allocator->GetCurrentFrameIndex(), *pInfo, *pContext); + } +#endif + + return res; } -VkResult vmaBindBufferMemory( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaDefragmentationEnd( + VmaAllocator allocator, + VmaDefragmentationContext context) +{ + VMA_ASSERT(allocator); + + VMA_DEBUG_LOG("vmaDefragmentationEnd"); + + if(context != VK_NULL_HANDLE) + { + VMA_DEBUG_GLOBAL_MUTEX_LOCK + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordDefragmentationEnd( + allocator->GetCurrentFrameIndex(), context); + } +#endif + + return allocator->DefragmentationEnd(context); + } + else + { + return VK_SUCCESS; + } +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaBeginDefragmentationPass( + VmaAllocator allocator, + VmaDefragmentationContext context, + VmaDefragmentationPassInfo* pInfo + ) +{ + VMA_ASSERT(allocator); + VMA_ASSERT(pInfo); + + VMA_DEBUG_LOG("vmaBeginDefragmentationPass"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + if(context == VK_NULL_HANDLE) + { + pInfo->moveCount = 0; + return VK_SUCCESS; + } + + return allocator->DefragmentationPassBegin(pInfo, context); +} +VMA_CALL_PRE VkResult VMA_CALL_POST vmaEndDefragmentationPass( + VmaAllocator allocator, + VmaDefragmentationContext context) +{ + VMA_ASSERT(allocator); + + VMA_DEBUG_LOG("vmaEndDefragmentationPass"); + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + if(context == VK_NULL_HANDLE) + return VK_SUCCESS; + + return allocator->DefragmentationPassEnd(context); +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindBufferMemory( VmaAllocator allocator, VmaAllocation allocation, VkBuffer buffer) @@ -9164,10 +17464,26 @@ VkResult vmaBindBufferMemory( VMA_DEBUG_GLOBAL_MUTEX_LOCK - return allocator->BindBufferMemory(allocation, buffer); + return allocator->BindBufferMemory(allocation, 0, buffer, VMA_NULL); } -VkResult vmaBindImageMemory( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindBufferMemory2( + VmaAllocator allocator, + VmaAllocation allocation, + VkDeviceSize allocationLocalOffset, + VkBuffer buffer, + const void* pNext) +{ + VMA_ASSERT(allocator && allocation && buffer); + + VMA_DEBUG_LOG("vmaBindBufferMemory2"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + return allocator->BindBufferMemory(allocation, allocationLocalOffset, buffer, pNext); +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindImageMemory( VmaAllocator allocator, VmaAllocation allocation, VkImage image) @@ -9178,10 +17494,26 @@ VkResult vmaBindImageMemory( VMA_DEBUG_GLOBAL_MUTEX_LOCK - return allocator->BindImageMemory(allocation, image); + return allocator->BindImageMemory(allocation, 0, image, VMA_NULL); } -VkResult vmaCreateBuffer( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaBindImageMemory2( + VmaAllocator allocator, + VmaAllocation allocation, + VkDeviceSize allocationLocalOffset, + VkImage image, + const void* pNext) +{ + VMA_ASSERT(allocator && allocation && image); + + VMA_DEBUG_LOG("vmaBindImageMemory2"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + return allocator->BindImageMemory(allocation, allocationLocalOffset, image, pNext); +} + +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateBuffer( VmaAllocator allocator, const VkBufferCreateInfo* pBufferCreateInfo, const VmaAllocationCreateInfo* pAllocationCreateInfo, @@ -9190,9 +17522,20 @@ VkResult vmaCreateBuffer( VmaAllocationInfo* pAllocationInfo) { VMA_ASSERT(allocator && pBufferCreateInfo && pAllocationCreateInfo && pBuffer && pAllocation); - + + if(pBufferCreateInfo->size == 0) + { + return VK_ERROR_INITIALIZATION_FAILED; + } + if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_COPY) != 0 && + !allocator->m_UseKhrBufferDeviceAddress) + { + VMA_ASSERT(0 && "Creating a buffer with VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT is not valid if VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT was not used."); + return VK_ERROR_INITIALIZATION_FAILED; + } + VMA_DEBUG_LOG("vmaCreateBuffer"); - + VMA_DEBUG_GLOBAL_MUTEX_LOCK *pBuffer = VK_NULL_HANDLE; @@ -9213,48 +17556,53 @@ VkResult vmaCreateBuffer( allocator->GetBufferMemoryRequirements(*pBuffer, vkMemReq, requiresDedicatedAllocation, prefersDedicatedAllocation); - // Make sure alignment requirements for specific buffer usages reported - // in Physical Device Properties are included in alignment reported by memory requirements. - if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_UNIFORM_TEXEL_BUFFER_BIT) != 0) - { - VMA_ASSERT(vkMemReq.alignment % - allocator->m_PhysicalDeviceProperties.limits.minTexelBufferOffsetAlignment == 0); - } - if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT) != 0) - { - VMA_ASSERT(vkMemReq.alignment % - allocator->m_PhysicalDeviceProperties.limits.minUniformBufferOffsetAlignment == 0); - } - if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_STORAGE_BUFFER_BIT) != 0) - { - VMA_ASSERT(vkMemReq.alignment % - allocator->m_PhysicalDeviceProperties.limits.minStorageBufferOffsetAlignment == 0); - } - // 3. Allocate memory using allocator. res = allocator->AllocateMemory( vkMemReq, requiresDedicatedAllocation, prefersDedicatedAllocation, *pBuffer, // dedicatedBuffer + pBufferCreateInfo->usage, // dedicatedBufferUsage VK_NULL_HANDLE, // dedicatedImage *pAllocationCreateInfo, VMA_SUBALLOCATION_TYPE_BUFFER, + 1, // allocationCount pAllocation); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordCreateBuffer( + allocator->GetCurrentFrameIndex(), + *pBufferCreateInfo, + *pAllocationCreateInfo, + *pAllocation); + } +#endif + if(res >= 0) { // 3. Bind buffer with memory. - res = allocator->BindBufferMemory(*pAllocation, *pBuffer); + if((pAllocationCreateInfo->flags & VMA_ALLOCATION_CREATE_DONT_BIND_BIT) == 0) + { + res = allocator->BindBufferMemory(*pAllocation, 0, *pBuffer, VMA_NULL); + } if(res >= 0) { // All steps succeeded. + #if VMA_STATS_STRING_ENABLED + (*pAllocation)->InitBufferImageUsage(pBufferCreateInfo->usage); + #endif if(pAllocationInfo != VMA_NULL) { allocator->GetAllocationInfo(*pAllocation, pAllocationInfo); } + return VK_SUCCESS; } - allocator->FreeMemory(*pAllocation); + allocator->FreeMemory( + 1, // allocationCount + pAllocation); *pAllocation = VK_NULL_HANDLE; (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks()); *pBuffer = VK_NULL_HANDLE; @@ -9267,26 +17615,147 @@ VkResult vmaCreateBuffer( return res; } -void vmaDestroyBuffer( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateBufferWithAlignment( + VmaAllocator allocator, + const VkBufferCreateInfo* pBufferCreateInfo, + const VmaAllocationCreateInfo* pAllocationCreateInfo, + VkDeviceSize minAlignment, + VkBuffer* pBuffer, + VmaAllocation* pAllocation, + VmaAllocationInfo* pAllocationInfo) +{ + VMA_ASSERT(allocator && pBufferCreateInfo && pAllocationCreateInfo && VmaIsPow2(minAlignment) && pBuffer && pAllocation); + + if(pBufferCreateInfo->size == 0) + { + return VK_ERROR_INITIALIZATION_FAILED; + } + if((pBufferCreateInfo->usage & VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT_COPY) != 0 && + !allocator->m_UseKhrBufferDeviceAddress) + { + VMA_ASSERT(0 && "Creating a buffer with VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT is not valid if VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT was not used."); + return VK_ERROR_INITIALIZATION_FAILED; + } + + VMA_DEBUG_LOG("vmaCreateBufferWithAlignment"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + + *pBuffer = VK_NULL_HANDLE; + *pAllocation = VK_NULL_HANDLE; + + // 1. Create VkBuffer. + VkResult res = (*allocator->GetVulkanFunctions().vkCreateBuffer)( + allocator->m_hDevice, + pBufferCreateInfo, + allocator->GetAllocationCallbacks(), + pBuffer); + if(res >= 0) + { + // 2. vkGetBufferMemoryRequirements. + VkMemoryRequirements vkMemReq = {}; + bool requiresDedicatedAllocation = false; + bool prefersDedicatedAllocation = false; + allocator->GetBufferMemoryRequirements(*pBuffer, vkMemReq, + requiresDedicatedAllocation, prefersDedicatedAllocation); + + // 2a. Include minAlignment + vkMemReq.alignment = VMA_MAX(vkMemReq.alignment, minAlignment); + + // 3. Allocate memory using allocator. + res = allocator->AllocateMemory( + vkMemReq, + requiresDedicatedAllocation, + prefersDedicatedAllocation, + *pBuffer, // dedicatedBuffer + pBufferCreateInfo->usage, // dedicatedBufferUsage + VK_NULL_HANDLE, // dedicatedImage + *pAllocationCreateInfo, + VMA_SUBALLOCATION_TYPE_BUFFER, + 1, // allocationCount + pAllocation); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + VMA_ASSERT(0 && "Not implemented."); + } +#endif + + if(res >= 0) + { + // 3. Bind buffer with memory. + if((pAllocationCreateInfo->flags & VMA_ALLOCATION_CREATE_DONT_BIND_BIT) == 0) + { + res = allocator->BindBufferMemory(*pAllocation, 0, *pBuffer, VMA_NULL); + } + if(res >= 0) + { + // All steps succeeded. + #if VMA_STATS_STRING_ENABLED + (*pAllocation)->InitBufferImageUsage(pBufferCreateInfo->usage); + #endif + if(pAllocationInfo != VMA_NULL) + { + allocator->GetAllocationInfo(*pAllocation, pAllocationInfo); + } + + return VK_SUCCESS; + } + allocator->FreeMemory( + 1, // allocationCount + pAllocation); + *pAllocation = VK_NULL_HANDLE; + (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks()); + *pBuffer = VK_NULL_HANDLE; + return res; + } + (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, *pBuffer, allocator->GetAllocationCallbacks()); + *pBuffer = VK_NULL_HANDLE; + return res; + } + return res; +} + +VMA_CALL_PRE void VMA_CALL_POST vmaDestroyBuffer( VmaAllocator allocator, VkBuffer buffer, VmaAllocation allocation) { + VMA_ASSERT(allocator); + + if(buffer == VK_NULL_HANDLE && allocation == VK_NULL_HANDLE) + { + return; + } + + VMA_DEBUG_LOG("vmaDestroyBuffer"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordDestroyBuffer( + allocator->GetCurrentFrameIndex(), + allocation); + } +#endif + if(buffer != VK_NULL_HANDLE) { - VMA_ASSERT(allocator); - - VMA_DEBUG_LOG("vmaDestroyBuffer"); - - VMA_DEBUG_GLOBAL_MUTEX_LOCK - (*allocator->GetVulkanFunctions().vkDestroyBuffer)(allocator->m_hDevice, buffer, allocator->GetAllocationCallbacks()); - - allocator->FreeMemory(allocation); + } + + if(allocation != VK_NULL_HANDLE) + { + allocator->FreeMemory( + 1, // allocationCount + &allocation); } } -VkResult vmaCreateImage( +VMA_CALL_PRE VkResult VMA_CALL_POST vmaCreateImage( VmaAllocator allocator, const VkImageCreateInfo* pImageCreateInfo, const VmaAllocationCreateInfo* pAllocationCreateInfo, @@ -9296,6 +17765,15 @@ VkResult vmaCreateImage( { VMA_ASSERT(allocator && pImageCreateInfo && pAllocationCreateInfo && pImage && pAllocation); + if(pImageCreateInfo->extent.width == 0 || + pImageCreateInfo->extent.height == 0 || + pImageCreateInfo->extent.depth == 0 || + pImageCreateInfo->mipLevels == 0 || + pImageCreateInfo->arrayLayers == 0) + { + return VK_ERROR_INITIALIZATION_FAILED; + } + VMA_DEBUG_LOG("vmaCreateImage"); VMA_DEBUG_GLOBAL_MUTEX_LOCK @@ -9314,23 +17792,60 @@ VkResult vmaCreateImage( VmaSuballocationType suballocType = pImageCreateInfo->tiling == VK_IMAGE_TILING_OPTIMAL ? VMA_SUBALLOCATION_TYPE_IMAGE_OPTIMAL : VMA_SUBALLOCATION_TYPE_IMAGE_LINEAR; - + // 2. Allocate memory using allocator. - res = AllocateMemoryForImage(allocator, *pImage, pAllocationCreateInfo, suballocType, pAllocation); + VkMemoryRequirements vkMemReq = {}; + bool requiresDedicatedAllocation = false; + bool prefersDedicatedAllocation = false; + allocator->GetImageMemoryRequirements(*pImage, vkMemReq, + requiresDedicatedAllocation, prefersDedicatedAllocation); + + res = allocator->AllocateMemory( + vkMemReq, + requiresDedicatedAllocation, + prefersDedicatedAllocation, + VK_NULL_HANDLE, // dedicatedBuffer + UINT32_MAX, // dedicatedBufferUsage + *pImage, // dedicatedImage + *pAllocationCreateInfo, + suballocType, + 1, // allocationCount + pAllocation); + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordCreateImage( + allocator->GetCurrentFrameIndex(), + *pImageCreateInfo, + *pAllocationCreateInfo, + *pAllocation); + } +#endif + if(res >= 0) { // 3. Bind image with memory. - res = allocator->BindImageMemory(*pAllocation, *pImage); + if((pAllocationCreateInfo->flags & VMA_ALLOCATION_CREATE_DONT_BIND_BIT) == 0) + { + res = allocator->BindImageMemory(*pAllocation, 0, *pImage, VMA_NULL); + } if(res >= 0) { // All steps succeeded. + #if VMA_STATS_STRING_ENABLED + (*pAllocation)->InitBufferImageUsage(pImageCreateInfo->usage); + #endif if(pAllocationInfo != VMA_NULL) { allocator->GetAllocationInfo(*pAllocation, pAllocationInfo); } + return VK_SUCCESS; } - allocator->FreeMemory(*pAllocation); + allocator->FreeMemory( + 1, // allocationCount + pAllocation); *pAllocation = VK_NULL_HANDLE; (*allocator->GetVulkanFunctions().vkDestroyImage)(allocator->m_hDevice, *pImage, allocator->GetAllocationCallbacks()); *pImage = VK_NULL_HANDLE; @@ -9343,23 +17858,2001 @@ VkResult vmaCreateImage( return res; } -void vmaDestroyImage( +VMA_CALL_PRE void VMA_CALL_POST vmaDestroyImage( VmaAllocator allocator, VkImage image, VmaAllocation allocation) { + VMA_ASSERT(allocator); + + if(image == VK_NULL_HANDLE && allocation == VK_NULL_HANDLE) + { + return; + } + + VMA_DEBUG_LOG("vmaDestroyImage"); + + VMA_DEBUG_GLOBAL_MUTEX_LOCK + +#if VMA_RECORDING_ENABLED + if(allocator->GetRecorder() != VMA_NULL) + { + allocator->GetRecorder()->RecordDestroyImage( + allocator->GetCurrentFrameIndex(), + allocation); + } +#endif + if(image != VK_NULL_HANDLE) { - VMA_ASSERT(allocator); - - VMA_DEBUG_LOG("vmaDestroyImage"); - - VMA_DEBUG_GLOBAL_MUTEX_LOCK - (*allocator->GetVulkanFunctions().vkDestroyImage)(allocator->m_hDevice, image, allocator->GetAllocationCallbacks()); - - allocator->FreeMemory(allocation); + } + if(allocation != VK_NULL_HANDLE) + { + allocator->FreeMemory( + 1, // allocationCount + &allocation); } } #endif // #ifdef VMA_IMPLEMENTATION + +/** +\page quick_start Quick start + +\section quick_start_project_setup Project setup + +Vulkan Memory Allocator comes in form of a "stb-style" single header file. +You don't need to build it as a separate library project. +You can add this file directly to your project and submit it to code repository next to your other source files. + +"Single header" doesn't mean that everything is contained in C/C++ declarations, +like it tends to be in case of inline functions or C++ templates. +It means that implementation is bundled with interface in a single file and needs to be extracted using preprocessor macro. +If you don't do it properly, you will get linker errors. + +To do it properly: + +-# Include "vk_mem_alloc.h" file in each CPP file where you want to use the library. + This includes declarations of all members of the library. +-# In exactly one CPP file define following macro before this include. + It enables also internal definitions. + +\code +#define VMA_IMPLEMENTATION +#include "vk_mem_alloc.h" +\endcode + +It may be a good idea to create dedicated CPP file just for this purpose. + +Note on language: This library is written in C++, but has C-compatible interface. +Thus you can include and use vk_mem_alloc.h in C or C++ code, but full +implementation with `VMA_IMPLEMENTATION` macro must be compiled as C++, NOT as C. + +Please note that this library includes header ``, which in turn +includes `` on Windows. If you need some specific macros defined +before including these headers (like `WIN32_LEAN_AND_MEAN` or +`WINVER` for Windows, `VK_USE_PLATFORM_WIN32_KHR` for Vulkan), you must define +them before every `#include` of this library. + +You may need to configure the way you import Vulkan functions. + +- By default, VMA assumes you you link statically with Vulkan API. If this is not the case, + `#define VMA_STATIC_VULKAN_FUNCTIONS 0` before `#include` of the VMA implementation and use another way. +- You can `#define VMA_DYNAMIC_VULKAN_FUNCTIONS 1` and make sure `vkGetInstanceProcAddr` and `vkGetDeviceProcAddr` globals are defined. + All the remaining Vulkan functions will be fetched automatically. +- Finally, you can provide your own pointers to all Vulkan functions needed by VMA using structure member + VmaAllocatorCreateInfo::pVulkanFunctions, if you fetched them in some custom way e.g. using some loader like [Volk](https://github.com/zeux/volk). + + +\section quick_start_initialization Initialization + +At program startup: + +-# Initialize Vulkan to have `VkPhysicalDevice`, `VkDevice` and `VkInstance` object. +-# Fill VmaAllocatorCreateInfo structure and create #VmaAllocator object by + calling vmaCreateAllocator(). + +\code +VmaAllocatorCreateInfo allocatorInfo = {}; +allocatorInfo.vulkanApiVersion = VK_API_VERSION_1_2; +allocatorInfo.physicalDevice = physicalDevice; +allocatorInfo.device = device; +allocatorInfo.instance = instance; + +VmaAllocator allocator; +vmaCreateAllocator(&allocatorInfo, &allocator); +\endcode + +Only members `physicalDevice`, `device`, `instance` are required. +However, you should inform the library which Vulkan version do you use by setting +VmaAllocatorCreateInfo::vulkanApiVersion and which extensions did you enable +by setting VmaAllocatorCreateInfo::flags (like #VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT for VK_KHR_buffer_device_address). +Otherwise, VMA would use only features of Vulkan 1.0 core with no extensions. + + +\section quick_start_resource_allocation Resource allocation + +When you want to create a buffer or image: + +-# Fill `VkBufferCreateInfo` / `VkImageCreateInfo` structure. +-# Fill VmaAllocationCreateInfo structure. +-# Call vmaCreateBuffer() / vmaCreateImage() to get `VkBuffer`/`VkImage` with memory + already allocated and bound to it. + +\code +VkBufferCreateInfo bufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; +bufferInfo.size = 65536; +bufferInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; + +VmaAllocationCreateInfo allocInfo = {}; +allocInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; + +VkBuffer buffer; +VmaAllocation allocation; +vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr); +\endcode + +Don't forget to destroy your objects when no longer needed: + +\code +vmaDestroyBuffer(allocator, buffer, allocation); +vmaDestroyAllocator(allocator); +\endcode + + +\page choosing_memory_type Choosing memory type + +Physical devices in Vulkan support various combinations of memory heaps and +types. Help with choosing correct and optimal memory type for your specific +resource is one of the key features of this library. You can use it by filling +appropriate members of VmaAllocationCreateInfo structure, as described below. +You can also combine multiple methods. + +-# If you just want to find memory type index that meets your requirements, you + can use function: vmaFindMemoryTypeIndex(), vmaFindMemoryTypeIndexForBufferInfo(), + vmaFindMemoryTypeIndexForImageInfo(). +-# If you want to allocate a region of device memory without association with any + specific image or buffer, you can use function vmaAllocateMemory(). Usage of + this function is not recommended and usually not needed. + vmaAllocateMemoryPages() function is also provided for creating multiple allocations at once, + which may be useful for sparse binding. +-# If you already have a buffer or an image created, you want to allocate memory + for it and then you will bind it yourself, you can use function + vmaAllocateMemoryForBuffer(), vmaAllocateMemoryForImage(). + For binding you should use functions: vmaBindBufferMemory(), vmaBindImageMemory() + or their extended versions: vmaBindBufferMemory2(), vmaBindImageMemory2(). +-# If you want to create a buffer or an image, allocate memory for it and bind + them together, all in one call, you can use function vmaCreateBuffer(), + vmaCreateImage(). This is the easiest and recommended way to use this library. + +When using 3. or 4., the library internally queries Vulkan for memory types +supported for that buffer or image (function `vkGetBufferMemoryRequirements()`) +and uses only one of these types. + +If no memory type can be found that meets all the requirements, these functions +return `VK_ERROR_FEATURE_NOT_PRESENT`. + +You can leave VmaAllocationCreateInfo structure completely filled with zeros. +It means no requirements are specified for memory type. +It is valid, although not very useful. + +\section choosing_memory_type_usage Usage + +The easiest way to specify memory requirements is to fill member +VmaAllocationCreateInfo::usage using one of the values of enum #VmaMemoryUsage. +It defines high level, common usage types. +For more details, see description of this enum. + +For example, if you want to create a uniform buffer that will be filled using +transfer only once or infrequently and used for rendering every frame, you can +do it using following code: + +\code +VkBufferCreateInfo bufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; +bufferInfo.size = 65536; +bufferInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; + +VmaAllocationCreateInfo allocInfo = {}; +allocInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; + +VkBuffer buffer; +VmaAllocation allocation; +vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr); +\endcode + +\section choosing_memory_type_required_preferred_flags Required and preferred flags + +You can specify more detailed requirements by filling members +VmaAllocationCreateInfo::requiredFlags and VmaAllocationCreateInfo::preferredFlags +with a combination of bits from enum `VkMemoryPropertyFlags`. For example, +if you want to create a buffer that will be persistently mapped on host (so it +must be `HOST_VISIBLE`) and preferably will also be `HOST_COHERENT` and `HOST_CACHED`, +use following code: + +\code +VmaAllocationCreateInfo allocInfo = {}; +allocInfo.requiredFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT; +allocInfo.preferredFlags = VK_MEMORY_PROPERTY_HOST_COHERENT_BIT | VK_MEMORY_PROPERTY_HOST_CACHED_BIT; +allocInfo.flags = VMA_ALLOCATION_CREATE_MAPPED_BIT; + +VkBuffer buffer; +VmaAllocation allocation; +vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr); +\endcode + +A memory type is chosen that has all the required flags and as many preferred +flags set as possible. + +If you use VmaAllocationCreateInfo::usage, it is just internally converted to +a set of required and preferred flags. + +\section choosing_memory_type_explicit_memory_types Explicit memory types + +If you inspected memory types available on the physical device and you have +a preference for memory types that you want to use, you can fill member +VmaAllocationCreateInfo::memoryTypeBits. It is a bit mask, where each bit set +means that a memory type with that index is allowed to be used for the +allocation. Special value 0, just like `UINT32_MAX`, means there are no +restrictions to memory type index. + +Please note that this member is NOT just a memory type index. +Still you can use it to choose just one, specific memory type. +For example, if you already determined that your buffer should be created in +memory type 2, use following code: + +\code +uint32_t memoryTypeIndex = 2; + +VmaAllocationCreateInfo allocInfo = {}; +allocInfo.memoryTypeBits = 1u << memoryTypeIndex; + +VkBuffer buffer; +VmaAllocation allocation; +vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &buffer, &allocation, nullptr); +\endcode + + +\section choosing_memory_type_custom_memory_pools Custom memory pools + +If you allocate from custom memory pool, all the ways of specifying memory +requirements described above are not applicable and the aforementioned members +of VmaAllocationCreateInfo structure are ignored. Memory type is selected +explicitly when creating the pool and then used to make all the allocations from +that pool. For further details, see \ref custom_memory_pools. + +\section choosing_memory_type_dedicated_allocations Dedicated allocations + +Memory for allocations is reserved out of larger block of `VkDeviceMemory` +allocated from Vulkan internally. That is the main feature of this whole library. +You can still request a separate memory block to be created for an allocation, +just like you would do in a trivial solution without using any allocator. +In that case, a buffer or image is always bound to that memory at offset 0. +This is called a "dedicated allocation". +You can explicitly request it by using flag #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT. +The library can also internally decide to use dedicated allocation in some cases, e.g.: + +- When the size of the allocation is large. +- When [VK_KHR_dedicated_allocation](@ref vk_khr_dedicated_allocation) extension is enabled + and it reports that dedicated allocation is required or recommended for the resource. +- When allocation of next big memory block fails due to not enough device memory, + but allocation with the exact requested size succeeds. + + +\page memory_mapping Memory mapping + +To "map memory" in Vulkan means to obtain a CPU pointer to `VkDeviceMemory`, +to be able to read from it or write to it in CPU code. +Mapping is possible only of memory allocated from a memory type that has +`VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` flag. +Functions `vkMapMemory()`, `vkUnmapMemory()` are designed for this purpose. +You can use them directly with memory allocated by this library, +but it is not recommended because of following issue: +Mapping the same `VkDeviceMemory` block multiple times is illegal - only one mapping at a time is allowed. +This includes mapping disjoint regions. Mapping is not reference-counted internally by Vulkan. +Because of this, Vulkan Memory Allocator provides following facilities: + +\section memory_mapping_mapping_functions Mapping functions + +The library provides following functions for mapping of a specific #VmaAllocation: vmaMapMemory(), vmaUnmapMemory(). +They are safer and more convenient to use than standard Vulkan functions. +You can map an allocation multiple times simultaneously - mapping is reference-counted internally. +You can also map different allocations simultaneously regardless of whether they use the same `VkDeviceMemory` block. +The way it is implemented is that the library always maps entire memory block, not just region of the allocation. +For further details, see description of vmaMapMemory() function. +Example: + +\code +// Having these objects initialized: + +struct ConstantBuffer +{ + ... +}; +ConstantBuffer constantBufferData; + +VmaAllocator allocator; +VkBuffer constantBuffer; +VmaAllocation constantBufferAllocation; + +// You can map and fill your buffer using following code: + +void* mappedData; +vmaMapMemory(allocator, constantBufferAllocation, &mappedData); +memcpy(mappedData, &constantBufferData, sizeof(constantBufferData)); +vmaUnmapMemory(allocator, constantBufferAllocation); +\endcode + +When mapping, you may see a warning from Vulkan validation layer similar to this one: + +Mapping an image with layout VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL can result in undefined behavior if this memory is used by the device. Only GENERAL or PREINITIALIZED should be used. + +It happens because the library maps entire `VkDeviceMemory` block, where different +types of images and buffers may end up together, especially on GPUs with unified memory like Intel. +You can safely ignore it if you are sure you access only memory of the intended +object that you wanted to map. + + +\section memory_mapping_persistently_mapped_memory Persistently mapped memory + +Kepping your memory persistently mapped is generally OK in Vulkan. +You don't need to unmap it before using its data on the GPU. +The library provides a special feature designed for that: +Allocations made with #VMA_ALLOCATION_CREATE_MAPPED_BIT flag set in +VmaAllocationCreateInfo::flags stay mapped all the time, +so you can just access CPU pointer to it any time +without a need to call any "map" or "unmap" function. +Example: + +\code +VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; +bufCreateInfo.size = sizeof(ConstantBuffer); +bufCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT; + +VmaAllocationCreateInfo allocCreateInfo = {}; +allocCreateInfo.usage = VMA_MEMORY_USAGE_CPU_ONLY; +allocCreateInfo.flags = VMA_ALLOCATION_CREATE_MAPPED_BIT; + +VkBuffer buf; +VmaAllocation alloc; +VmaAllocationInfo allocInfo; +vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo); + +// Buffer is already mapped. You can access its memory. +memcpy(allocInfo.pMappedData, &constantBufferData, sizeof(constantBufferData)); +\endcode + +There are some exceptions though, when you should consider mapping memory only for a short period of time: + +- When operating system is Windows 7 or 8.x (Windows 10 is not affected because it uses WDDM2), + device is discrete AMD GPU, + and memory type is the special 256 MiB pool of `DEVICE_LOCAL + HOST_VISIBLE` memory + (selected when you use #VMA_MEMORY_USAGE_CPU_TO_GPU), + then whenever a memory block allocated from this memory type stays mapped + for the time of any call to `vkQueueSubmit()` or `vkQueuePresentKHR()`, this + block is migrated by WDDM to system RAM, which degrades performance. It doesn't + matter if that particular memory block is actually used by the command buffer + being submitted. +- Keeping many large memory blocks mapped may impact performance or stability of some debugging tools. + +\section memory_mapping_cache_control Cache flush and invalidate + +Memory in Vulkan doesn't need to be unmapped before using it on GPU, +but unless a memory types has `VK_MEMORY_PROPERTY_HOST_COHERENT_BIT` flag set, +you need to manually **invalidate** cache before reading of mapped pointer +and **flush** cache after writing to mapped pointer. +Map/unmap operations don't do that automatically. +Vulkan provides following functions for this purpose `vkFlushMappedMemoryRanges()`, +`vkInvalidateMappedMemoryRanges()`, but this library provides more convenient +functions that refer to given allocation object: vmaFlushAllocation(), +vmaInvalidateAllocation(), +or multiple objects at once: vmaFlushAllocations(), vmaInvalidateAllocations(). + +Regions of memory specified for flush/invalidate must be aligned to +`VkPhysicalDeviceLimits::nonCoherentAtomSize`. This is automatically ensured by the library. +In any memory type that is `HOST_VISIBLE` but not `HOST_COHERENT`, all allocations +within blocks are aligned to this value, so their offsets are always multiply of +`nonCoherentAtomSize` and two different allocations never share same "line" of this size. + +Please note that memory allocated with #VMA_MEMORY_USAGE_CPU_ONLY is guaranteed to be `HOST_COHERENT`. + +Also, Windows drivers from all 3 **PC** GPU vendors (AMD, Intel, NVIDIA) +currently provide `HOST_COHERENT` flag on all memory types that are +`HOST_VISIBLE`, so on this platform you may not need to bother. + +\section memory_mapping_finding_if_memory_mappable Finding out if memory is mappable + +It may happen that your allocation ends up in memory that is `HOST_VISIBLE` (available for mapping) +despite it wasn't explicitly requested. +For example, application may work on integrated graphics with unified memory (like Intel) or +allocation from video memory might have failed, so the library chose system memory as fallback. + +You can detect this case and map such allocation to access its memory on CPU directly, +instead of launching a transfer operation. +In order to do that: inspect `allocInfo.memoryType`, call vmaGetMemoryTypeProperties(), +and look for `VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT` flag in properties of that memory type. + +\code +VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; +bufCreateInfo.size = sizeof(ConstantBuffer); +bufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; + +VmaAllocationCreateInfo allocCreateInfo = {}; +allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; +allocCreateInfo.preferredFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT; + +VkBuffer buf; +VmaAllocation alloc; +VmaAllocationInfo allocInfo; +vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo); + +VkMemoryPropertyFlags memFlags; +vmaGetMemoryTypeProperties(allocator, allocInfo.memoryType, &memFlags); +if((memFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) != 0) +{ + // Allocation ended up in mappable memory. You can map it and access it directly. + void* mappedData; + vmaMapMemory(allocator, alloc, &mappedData); + memcpy(mappedData, &constantBufferData, sizeof(constantBufferData)); + vmaUnmapMemory(allocator, alloc); +} +else +{ + // Allocation ended up in non-mappable memory. + // You need to create CPU-side buffer in VMA_MEMORY_USAGE_CPU_ONLY and make a transfer. +} +\endcode + +You can even use #VMA_ALLOCATION_CREATE_MAPPED_BIT flag while creating allocations +that are not necessarily `HOST_VISIBLE` (e.g. using #VMA_MEMORY_USAGE_GPU_ONLY). +If the allocation ends up in memory type that is `HOST_VISIBLE`, it will be persistently mapped and you can use it directly. +If not, the flag is just ignored. +Example: + +\code +VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; +bufCreateInfo.size = sizeof(ConstantBuffer); +bufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; + +VmaAllocationCreateInfo allocCreateInfo = {}; +allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; +allocCreateInfo.flags = VMA_ALLOCATION_CREATE_MAPPED_BIT; + +VkBuffer buf; +VmaAllocation alloc; +VmaAllocationInfo allocInfo; +vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo); + +if(allocInfo.pMappedData != nullptr) +{ + // Allocation ended up in mappable memory. + // It is persistently mapped. You can access it directly. + memcpy(allocInfo.pMappedData, &constantBufferData, sizeof(constantBufferData)); +} +else +{ + // Allocation ended up in non-mappable memory. + // You need to create CPU-side buffer in VMA_MEMORY_USAGE_CPU_ONLY and make a transfer. +} +\endcode + + +\page staying_within_budget Staying within budget + +When developing a graphics-intensive game or program, it is important to avoid allocating +more GPU memory than it is physically available. When the memory is over-committed, +various bad things can happen, depending on the specific GPU, graphics driver, and +operating system: + +- It may just work without any problems. +- The application may slow down because some memory blocks are moved to system RAM + and the GPU has to access them through PCI Express bus. +- A new allocation may take very long time to complete, even few seconds, and possibly + freeze entire system. +- The new allocation may fail with `VK_ERROR_OUT_OF_DEVICE_MEMORY`. +- It may even result in GPU crash (TDR), observed as `VK_ERROR_DEVICE_LOST` + returned somewhere later. + +\section staying_within_budget_querying_for_budget Querying for budget + +To query for current memory usage and available budget, use function vmaGetBudget(). +Returned structure #VmaBudget contains quantities expressed in bytes, per Vulkan memory heap. + +Please note that this function returns different information and works faster than +vmaCalculateStats(). vmaGetBudget() can be called every frame or even before every +allocation, while vmaCalculateStats() is intended to be used rarely, +only to obtain statistical information, e.g. for debugging purposes. + +It is recommended to use VK_EXT_memory_budget device extension to obtain information +about the budget from Vulkan device. VMA is able to use this extension automatically. +When not enabled, the allocator behaves same way, but then it estimates current usage +and available budget based on its internal information and Vulkan memory heap sizes, +which may be less precise. In order to use this extension: + +1. Make sure extensions VK_EXT_memory_budget and VK_KHR_get_physical_device_properties2 + required by it are available and enable them. Please note that the first is a device + extension and the second is instance extension! +2. Use flag #VMA_ALLOCATOR_CREATE_EXT_MEMORY_BUDGET_BIT when creating #VmaAllocator object. +3. Make sure to call vmaSetCurrentFrameIndex() every frame. Budget is queried from + Vulkan inside of it to avoid overhead of querying it with every allocation. + +\section staying_within_budget_controlling_memory_usage Controlling memory usage + +There are many ways in which you can try to stay within the budget. + +First, when making new allocation requires allocating a new memory block, the library +tries not to exceed the budget automatically. If a block with default recommended size +(e.g. 256 MB) would go over budget, a smaller block is allocated, possibly even +dedicated memory for just this resource. + +If the size of the requested resource plus current memory usage is more than the +budget, by default the library still tries to create it, leaving it to the Vulkan +implementation whether the allocation succeeds or fails. You can change this behavior +by using #VMA_ALLOCATION_CREATE_WITHIN_BUDGET_BIT flag. With it, the allocation is +not made if it would exceed the budget or if the budget is already exceeded. +Some other allocations become lost instead to make room for it, if the mechanism of +[lost allocations](@ref lost_allocations) is used. +If that is not possible, the allocation fails with `VK_ERROR_OUT_OF_DEVICE_MEMORY`. +Example usage pattern may be to pass the #VMA_ALLOCATION_CREATE_WITHIN_BUDGET_BIT flag +when creating resources that are not essential for the application (e.g. the texture +of a specific object) and not to pass it when creating critically important resources +(e.g. render targets). + +Finally, you can also use #VMA_ALLOCATION_CREATE_NEVER_ALLOCATE_BIT flag to make sure +a new allocation is created only when it fits inside one of the existing memory blocks. +If it would require to allocate a new block, if fails instead with `VK_ERROR_OUT_OF_DEVICE_MEMORY`. +This also ensures that the function call is very fast because it never goes to Vulkan +to obtain a new block. + +Please note that creating \ref custom_memory_pools with VmaPoolCreateInfo::minBlockCount +set to more than 0 will try to allocate memory blocks without checking whether they +fit within budget. + + +\page resource_aliasing Resource aliasing (overlap) + +New explicit graphics APIs (Vulkan and Direct3D 12), thanks to manual memory +management, give an opportunity to alias (overlap) multiple resources in the +same region of memory - a feature not available in the old APIs (Direct3D 11, OpenGL). +It can be useful to save video memory, but it must be used with caution. + +For example, if you know the flow of your whole render frame in advance, you +are going to use some intermediate textures or buffers only during a small range of render passes, +and you know these ranges don't overlap in time, you can bind these resources to +the same place in memory, even if they have completely different parameters (width, height, format etc.). + +![Resource aliasing (overlap)](../gfx/Aliasing.png) + +Such scenario is possible using VMA, but you need to create your images manually. +Then you need to calculate parameters of an allocation to be made using formula: + +- allocation size = max(size of each image) +- allocation alignment = max(alignment of each image) +- allocation memoryTypeBits = bitwise AND(memoryTypeBits of each image) + +Following example shows two different images bound to the same place in memory, +allocated to fit largest of them. + +\code +// A 512x512 texture to be sampled. +VkImageCreateInfo img1CreateInfo = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO }; +img1CreateInfo.imageType = VK_IMAGE_TYPE_2D; +img1CreateInfo.extent.width = 512; +img1CreateInfo.extent.height = 512; +img1CreateInfo.extent.depth = 1; +img1CreateInfo.mipLevels = 10; +img1CreateInfo.arrayLayers = 1; +img1CreateInfo.format = VK_FORMAT_R8G8B8A8_SRGB; +img1CreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL; +img1CreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; +img1CreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT; +img1CreateInfo.samples = VK_SAMPLE_COUNT_1_BIT; + +// A full screen texture to be used as color attachment. +VkImageCreateInfo img2CreateInfo = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO }; +img2CreateInfo.imageType = VK_IMAGE_TYPE_2D; +img2CreateInfo.extent.width = 1920; +img2CreateInfo.extent.height = 1080; +img2CreateInfo.extent.depth = 1; +img2CreateInfo.mipLevels = 1; +img2CreateInfo.arrayLayers = 1; +img2CreateInfo.format = VK_FORMAT_R8G8B8A8_UNORM; +img2CreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL; +img2CreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; +img2CreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT; +img2CreateInfo.samples = VK_SAMPLE_COUNT_1_BIT; + +VkImage img1; +res = vkCreateImage(device, &img1CreateInfo, nullptr, &img1); +VkImage img2; +res = vkCreateImage(device, &img2CreateInfo, nullptr, &img2); + +VkMemoryRequirements img1MemReq; +vkGetImageMemoryRequirements(device, img1, &img1MemReq); +VkMemoryRequirements img2MemReq; +vkGetImageMemoryRequirements(device, img2, &img2MemReq); + +VkMemoryRequirements finalMemReq = {}; +finalMemReq.size = std::max(img1MemReq.size, img2MemReq.size); +finalMemReq.alignment = std::max(img1MemReq.alignment, img2MemReq.alignment); +finalMemReq.memoryTypeBits = img1MemReq.memoryTypeBits & img2MemReq.memoryTypeBits; +// Validate if(finalMemReq.memoryTypeBits != 0) + +VmaAllocationCreateInfo allocCreateInfo = {}; +allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; + +VmaAllocation alloc; +res = vmaAllocateMemory(allocator, &finalMemReq, &allocCreateInfo, &alloc, nullptr); + +res = vmaBindImageMemory(allocator, alloc, img1); +res = vmaBindImageMemory(allocator, alloc, img2); + +// You can use img1, img2 here, but not at the same time! + +vmaFreeMemory(allocator, alloc); +vkDestroyImage(allocator, img2, nullptr); +vkDestroyImage(allocator, img1, nullptr); +\endcode + +Remember that using resources that alias in memory requires proper synchronization. +You need to issue a memory barrier to make sure commands that use `img1` and `img2` +don't overlap on GPU timeline. +You also need to treat a resource after aliasing as uninitialized - containing garbage data. +For example, if you use `img1` and then want to use `img2`, you need to issue +an image memory barrier for `img2` with `oldLayout` = `VK_IMAGE_LAYOUT_UNDEFINED`. + +Additional considerations: + +- Vulkan also allows to interpret contents of memory between aliasing resources consistently in some cases. +See chapter 11.8. "Memory Aliasing" of Vulkan specification or `VK_IMAGE_CREATE_ALIAS_BIT` flag. +- You can create more complex layout where different images and buffers are bound +at different offsets inside one large allocation. For example, one can imagine +a big texture used in some render passes, aliasing with a set of many small buffers +used between in some further passes. To bind a resource at non-zero offset of an allocation, +use vmaBindBufferMemory2() / vmaBindImageMemory2(). +- Before allocating memory for the resources you want to alias, check `memoryTypeBits` +returned in memory requirements of each resource to make sure the bits overlap. +Some GPUs may expose multiple memory types suitable e.g. only for buffers or +images with `COLOR_ATTACHMENT` usage, so the sets of memory types supported by your +resources may be disjoint. Aliasing them is not possible in that case. + + +\page custom_memory_pools Custom memory pools + +A memory pool contains a number of `VkDeviceMemory` blocks. +The library automatically creates and manages default pool for each memory type available on the device. +Default memory pool automatically grows in size. +Size of allocated blocks is also variable and managed automatically. + +You can create custom pool and allocate memory out of it. +It can be useful if you want to: + +- Keep certain kind of allocations separate from others. +- Enforce particular, fixed size of Vulkan memory blocks. +- Limit maximum amount of Vulkan memory allocated for that pool. +- Reserve minimum or fixed amount of Vulkan memory always preallocated for that pool. +- Use extra parameters for a set of your allocations that are available in #VmaPoolCreateInfo but not in + #VmaAllocationCreateInfo - e.g., custom minimum alignment, custom `pNext` chain. + +To use custom memory pools: + +-# Fill VmaPoolCreateInfo structure. +-# Call vmaCreatePool() to obtain #VmaPool handle. +-# When making an allocation, set VmaAllocationCreateInfo::pool to this handle. + You don't need to specify any other parameters of this structure, like `usage`. + +Example: + +\code +// Create a pool that can have at most 2 blocks, 128 MiB each. +VmaPoolCreateInfo poolCreateInfo = {}; +poolCreateInfo.memoryTypeIndex = ... +poolCreateInfo.blockSize = 128ull * 1024 * 1024; +poolCreateInfo.maxBlockCount = 2; + +VmaPool pool; +vmaCreatePool(allocator, &poolCreateInfo, &pool); + +// Allocate a buffer out of it. +VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; +bufCreateInfo.size = 1024; +bufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; + +VmaAllocationCreateInfo allocCreateInfo = {}; +allocCreateInfo.pool = pool; + +VkBuffer buf; +VmaAllocation alloc; +VmaAllocationInfo allocInfo; +vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &buf, &alloc, &allocInfo); +\endcode + +You have to free all allocations made from this pool before destroying it. + +\code +vmaDestroyBuffer(allocator, buf, alloc); +vmaDestroyPool(allocator, pool); +\endcode + +\section custom_memory_pools_MemTypeIndex Choosing memory type index + +When creating a pool, you must explicitly specify memory type index. +To find the one suitable for your buffers or images, you can use helper functions +vmaFindMemoryTypeIndexForBufferInfo(), vmaFindMemoryTypeIndexForImageInfo(). +You need to provide structures with example parameters of buffers or images +that you are going to create in that pool. + +\code +VkBufferCreateInfo exampleBufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; +exampleBufCreateInfo.size = 1024; // Whatever. +exampleBufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; // Change if needed. + +VmaAllocationCreateInfo allocCreateInfo = {}; +allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; // Change if needed. + +uint32_t memTypeIndex; +vmaFindMemoryTypeIndexForBufferInfo(allocator, &exampleBufCreateInfo, &allocCreateInfo, &memTypeIndex); + +VmaPoolCreateInfo poolCreateInfo = {}; +poolCreateInfo.memoryTypeIndex = memTypeIndex; +// ... +\endcode + +When creating buffers/images allocated in that pool, provide following parameters: + +- `VkBufferCreateInfo`: Prefer to pass same parameters as above. + Otherwise you risk creating resources in a memory type that is not suitable for them, which may result in undefined behavior. + Using different `VK_BUFFER_USAGE_` flags may work, but you shouldn't create images in a pool intended for buffers + or the other way around. +- VmaAllocationCreateInfo: You don't need to pass same parameters. Fill only `pool` member. + Other members are ignored anyway. + +\section linear_algorithm Linear allocation algorithm + +Each Vulkan memory block managed by this library has accompanying metadata that +keeps track of used and unused regions. By default, the metadata structure and +algorithm tries to find best place for new allocations among free regions to +optimize memory usage. This way you can allocate and free objects in any order. + +![Default allocation algorithm](../gfx/Linear_allocator_1_algo_default.png) + +Sometimes there is a need to use simpler, linear allocation algorithm. You can +create custom pool that uses such algorithm by adding flag +#VMA_POOL_CREATE_LINEAR_ALGORITHM_BIT to VmaPoolCreateInfo::flags while creating +#VmaPool object. Then an alternative metadata management is used. It always +creates new allocations after last one and doesn't reuse free regions after +allocations freed in the middle. It results in better allocation performance and +less memory consumed by metadata. + +![Linear allocation algorithm](../gfx/Linear_allocator_2_algo_linear.png) + +With this one flag, you can create a custom pool that can be used in many ways: +free-at-once, stack, double stack, and ring buffer. See below for details. + +\subsection linear_algorithm_free_at_once Free-at-once + +In a pool that uses linear algorithm, you still need to free all the allocations +individually, e.g. by using vmaFreeMemory() or vmaDestroyBuffer(). You can free +them in any order. New allocations are always made after last one - free space +in the middle is not reused. However, when you release all the allocation and +the pool becomes empty, allocation starts from the beginning again. This way you +can use linear algorithm to speed up creation of allocations that you are going +to release all at once. + +![Free-at-once](../gfx/Linear_allocator_3_free_at_once.png) + +This mode is also available for pools created with VmaPoolCreateInfo::maxBlockCount +value that allows multiple memory blocks. + +\subsection linear_algorithm_stack Stack + +When you free an allocation that was created last, its space can be reused. +Thanks to this, if you always release allocations in the order opposite to their +creation (LIFO - Last In First Out), you can achieve behavior of a stack. + +![Stack](../gfx/Linear_allocator_4_stack.png) + +This mode is also available for pools created with VmaPoolCreateInfo::maxBlockCount +value that allows multiple memory blocks. + +\subsection linear_algorithm_double_stack Double stack + +The space reserved by a custom pool with linear algorithm may be used by two +stacks: + +- First, default one, growing up from offset 0. +- Second, "upper" one, growing down from the end towards lower offsets. + +To make allocation from upper stack, add flag #VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT +to VmaAllocationCreateInfo::flags. + +![Double stack](../gfx/Linear_allocator_7_double_stack.png) + +Double stack is available only in pools with one memory block - +VmaPoolCreateInfo::maxBlockCount must be 1. Otherwise behavior is undefined. + +When the two stacks' ends meet so there is not enough space between them for a +new allocation, such allocation fails with usual +`VK_ERROR_OUT_OF_DEVICE_MEMORY` error. + +\subsection linear_algorithm_ring_buffer Ring buffer + +When you free some allocations from the beginning and there is not enough free space +for a new one at the end of a pool, allocator's "cursor" wraps around to the +beginning and starts allocation there. Thanks to this, if you always release +allocations in the same order as you created them (FIFO - First In First Out), +you can achieve behavior of a ring buffer / queue. + +![Ring buffer](../gfx/Linear_allocator_5_ring_buffer.png) + +Pools with linear algorithm support [lost allocations](@ref lost_allocations) when used as ring buffer. +If there is not enough free space for a new allocation, but existing allocations +from the front of the queue can become lost, they become lost and the allocation +succeeds. + +![Ring buffer with lost allocations](../gfx/Linear_allocator_6_ring_buffer_lost.png) + +Ring buffer is available only in pools with one memory block - +VmaPoolCreateInfo::maxBlockCount must be 1. Otherwise behavior is undefined. + +\section buddy_algorithm Buddy allocation algorithm + +There is another allocation algorithm that can be used with custom pools, called +"buddy". Its internal data structure is based on a tree of blocks, each having +size that is a power of two and a half of its parent's size. When you want to +allocate memory of certain size, a free node in the tree is located. If it is too +large, it is recursively split into two halves (called "buddies"). However, if +requested allocation size is not a power of two, the size of a tree node is +aligned up to the nearest power of two and the remaining space is wasted. When +two buddy nodes become free, they are merged back into one larger node. + +![Buddy allocator](../gfx/Buddy_allocator.png) + +The advantage of buddy allocation algorithm over default algorithm is faster +allocation and deallocation, as well as smaller external fragmentation. The +disadvantage is more wasted space (internal fragmentation). + +For more information, please read ["Buddy memory allocation" on Wikipedia](https://en.wikipedia.org/wiki/Buddy_memory_allocation) +or other sources that describe this concept in general. + +To use buddy allocation algorithm with a custom pool, add flag +#VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT to VmaPoolCreateInfo::flags while creating +#VmaPool object. + +Several limitations apply to pools that use buddy algorithm: + +- It is recommended to use VmaPoolCreateInfo::blockSize that is a power of two. + Otherwise, only largest power of two smaller than the size is used for + allocations. The remaining space always stays unused. +- [Margins](@ref debugging_memory_usage_margins) and + [corruption detection](@ref debugging_memory_usage_corruption_detection) + don't work in such pools. +- [Lost allocations](@ref lost_allocations) don't work in such pools. You can + use them, but they never become lost. Support may be added in the future. +- [Defragmentation](@ref defragmentation) doesn't work with allocations made from + such pool. + +\page defragmentation Defragmentation + +Interleaved allocations and deallocations of many objects of varying size can +cause fragmentation over time, which can lead to a situation where the library is unable +to find a continuous range of free memory for a new allocation despite there is +enough free space, just scattered across many small free ranges between existing +allocations. + +To mitigate this problem, you can use defragmentation feature: +structure #VmaDefragmentationInfo2, function vmaDefragmentationBegin(), vmaDefragmentationEnd(). +Given set of allocations, +this function can move them to compact used memory, ensure more continuous free +space and possibly also free some `VkDeviceMemory` blocks. + +What the defragmentation does is: + +- Updates #VmaAllocation objects to point to new `VkDeviceMemory` and offset. + After allocation has been moved, its VmaAllocationInfo::deviceMemory and/or + VmaAllocationInfo::offset changes. You must query them again using + vmaGetAllocationInfo() if you need them. +- Moves actual data in memory. + +What it doesn't do, so you need to do it yourself: + +- Recreate buffers and images that were bound to allocations that were defragmented and + bind them with their new places in memory. + You must use `vkDestroyBuffer()`, `vkDestroyImage()`, + `vkCreateBuffer()`, `vkCreateImage()`, vmaBindBufferMemory(), vmaBindImageMemory() + for that purpose and NOT vmaDestroyBuffer(), + vmaDestroyImage(), vmaCreateBuffer(), vmaCreateImage(), because you don't need to + destroy or create allocation objects! +- Recreate views and update descriptors that point to these buffers and images. + +\section defragmentation_cpu Defragmenting CPU memory + +Following example demonstrates how you can run defragmentation on CPU. +Only allocations created in memory types that are `HOST_VISIBLE` can be defragmented. +Others are ignored. + +The way it works is: + +- It temporarily maps entire memory blocks when necessary. +- It moves data using `memmove()` function. + +\code +// Given following variables already initialized: +VkDevice device; +VmaAllocator allocator; +std::vector buffers; +std::vector allocations; + + +const uint32_t allocCount = (uint32_t)allocations.size(); +std::vector allocationsChanged(allocCount); + +VmaDefragmentationInfo2 defragInfo = {}; +defragInfo.allocationCount = allocCount; +defragInfo.pAllocations = allocations.data(); +defragInfo.pAllocationsChanged = allocationsChanged.data(); +defragInfo.maxCpuBytesToMove = VK_WHOLE_SIZE; // No limit. +defragInfo.maxCpuAllocationsToMove = UINT32_MAX; // No limit. + +VmaDefragmentationContext defragCtx; +vmaDefragmentationBegin(allocator, &defragInfo, nullptr, &defragCtx); +vmaDefragmentationEnd(allocator, defragCtx); + +for(uint32_t i = 0; i < allocCount; ++i) +{ + if(allocationsChanged[i]) + { + // Destroy buffer that is immutably bound to memory region which is no longer valid. + vkDestroyBuffer(device, buffers[i], nullptr); + + // Create new buffer with same parameters. + VkBufferCreateInfo bufferInfo = ...; + vkCreateBuffer(device, &bufferInfo, nullptr, &buffers[i]); + + // You can make dummy call to vkGetBufferMemoryRequirements here to silence validation layer warning. + + // Bind new buffer to new memory region. Data contained in it is already moved. + VmaAllocationInfo allocInfo; + vmaGetAllocationInfo(allocator, allocations[i], &allocInfo); + vmaBindBufferMemory(allocator, allocations[i], buffers[i]); + } +} +\endcode + +Setting VmaDefragmentationInfo2::pAllocationsChanged is optional. +This output array tells whether particular allocation in VmaDefragmentationInfo2::pAllocations at the same index +has been modified during defragmentation. +You can pass null, but you then need to query every allocation passed to defragmentation +for new parameters using vmaGetAllocationInfo() if you might need to recreate and rebind a buffer or image associated with it. + +If you use [Custom memory pools](@ref choosing_memory_type_custom_memory_pools), +you can fill VmaDefragmentationInfo2::poolCount and VmaDefragmentationInfo2::pPools +instead of VmaDefragmentationInfo2::allocationCount and VmaDefragmentationInfo2::pAllocations +to defragment all allocations in given pools. +You cannot use VmaDefragmentationInfo2::pAllocationsChanged in that case. +You can also combine both methods. + +\section defragmentation_gpu Defragmenting GPU memory + +It is also possible to defragment allocations created in memory types that are not `HOST_VISIBLE`. +To do that, you need to pass a command buffer that meets requirements as described in +VmaDefragmentationInfo2::commandBuffer. The way it works is: + +- It creates temporary buffers and binds them to entire memory blocks when necessary. +- It issues `vkCmdCopyBuffer()` to passed command buffer. + +Example: + +\code +// Given following variables already initialized: +VkDevice device; +VmaAllocator allocator; +VkCommandBuffer commandBuffer; +std::vector buffers; +std::vector allocations; + + +const uint32_t allocCount = (uint32_t)allocations.size(); +std::vector allocationsChanged(allocCount); + +VkCommandBufferBeginInfo cmdBufBeginInfo = ...; +vkBeginCommandBuffer(commandBuffer, &cmdBufBeginInfo); + +VmaDefragmentationInfo2 defragInfo = {}; +defragInfo.allocationCount = allocCount; +defragInfo.pAllocations = allocations.data(); +defragInfo.pAllocationsChanged = allocationsChanged.data(); +defragInfo.maxGpuBytesToMove = VK_WHOLE_SIZE; // Notice it is "GPU" this time. +defragInfo.maxGpuAllocationsToMove = UINT32_MAX; // Notice it is "GPU" this time. +defragInfo.commandBuffer = commandBuffer; + +VmaDefragmentationContext defragCtx; +vmaDefragmentationBegin(allocator, &defragInfo, nullptr, &defragCtx); + +vkEndCommandBuffer(commandBuffer); + +// Submit commandBuffer. +// Wait for a fence that ensures commandBuffer execution finished. + +vmaDefragmentationEnd(allocator, defragCtx); + +for(uint32_t i = 0; i < allocCount; ++i) +{ + if(allocationsChanged[i]) + { + // Destroy buffer that is immutably bound to memory region which is no longer valid. + vkDestroyBuffer(device, buffers[i], nullptr); + + // Create new buffer with same parameters. + VkBufferCreateInfo bufferInfo = ...; + vkCreateBuffer(device, &bufferInfo, nullptr, &buffers[i]); + + // You can make dummy call to vkGetBufferMemoryRequirements here to silence validation layer warning. + + // Bind new buffer to new memory region. Data contained in it is already moved. + VmaAllocationInfo allocInfo; + vmaGetAllocationInfo(allocator, allocations[i], &allocInfo); + vmaBindBufferMemory(allocator, allocations[i], buffers[i]); + } +} +\endcode + +You can combine these two methods by specifying non-zero `maxGpu*` as well as `maxCpu*` parameters. +The library automatically chooses best method to defragment each memory pool. + +You may try not to block your entire program to wait until defragmentation finishes, +but do it in the background, as long as you carefully fullfill requirements described +in function vmaDefragmentationBegin(). + +\section defragmentation_additional_notes Additional notes + +It is only legal to defragment allocations bound to: + +- buffers +- images created with `VK_IMAGE_CREATE_ALIAS_BIT`, `VK_IMAGE_TILING_LINEAR`, and + being currently in `VK_IMAGE_LAYOUT_GENERAL` or `VK_IMAGE_LAYOUT_PREINITIALIZED`. + +Defragmentation of images created with `VK_IMAGE_TILING_OPTIMAL` or in any other +layout may give undefined results. + +If you defragment allocations bound to images, new images to be bound to new +memory region after defragmentation should be created with `VK_IMAGE_LAYOUT_PREINITIALIZED` +and then transitioned to their original layout from before defragmentation if +needed using an image memory barrier. + +While using defragmentation, you may experience validation layer warnings, which you just need to ignore. +See [Validation layer warnings](@ref general_considerations_validation_layer_warnings). + +Please don't expect memory to be fully compacted after defragmentation. +Algorithms inside are based on some heuristics that try to maximize number of Vulkan +memory blocks to make totally empty to release them, as well as to maximize continuous +empty space inside remaining blocks, while minimizing the number and size of allocations that +need to be moved. Some fragmentation may still remain - this is normal. + +\section defragmentation_custom_algorithm Writing custom defragmentation algorithm + +If you want to implement your own, custom defragmentation algorithm, +there is infrastructure prepared for that, +but it is not exposed through the library API - you need to hack its source code. +Here are steps needed to do this: + +-# Main thing you need to do is to define your own class derived from base abstract + class `VmaDefragmentationAlgorithm` and implement your version of its pure virtual methods. + See definition and comments of this class for details. +-# Your code needs to interact with device memory block metadata. + If you need more access to its data than it is provided by its public interface, + declare your new class as a friend class e.g. in class `VmaBlockMetadata_Generic`. +-# If you want to create a flag that would enable your algorithm or pass some additional + flags to configure it, add them to `VmaDefragmentationFlagBits` and use them in + VmaDefragmentationInfo2::flags. +-# Modify function `VmaBlockVectorDefragmentationContext::Begin` to create object + of your new class whenever needed. + + +\page lost_allocations Lost allocations + +If your game oversubscribes video memory, if may work OK in previous-generation +graphics APIs (DirectX 9, 10, 11, OpenGL) because resources are automatically +paged to system RAM. In Vulkan you can't do it because when you run out of +memory, an allocation just fails. If you have more data (e.g. textures) that can +fit into VRAM and you don't need it all at once, you may want to upload them to +GPU on demand and "push out" ones that are not used for a long time to make room +for the new ones, effectively using VRAM (or a cartain memory pool) as a form of +cache. Vulkan Memory Allocator can help you with that by supporting a concept of +"lost allocations". + +To create an allocation that can become lost, include #VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT +flag in VmaAllocationCreateInfo::flags. Before using a buffer or image bound to +such allocation in every new frame, you need to query it if it is not lost. +To check it, call vmaTouchAllocation(). +If the allocation is lost, you should not use it or buffer/image bound to it. +You mustn't forget to destroy this allocation and this buffer/image. +vmaGetAllocationInfo() can also be used for checking status of the allocation. +Allocation is lost when returned VmaAllocationInfo::deviceMemory == `VK_NULL_HANDLE`. + +To create an allocation that can make some other allocations lost to make room +for it, use #VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT flag. You will +usually use both flags #VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT and +#VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT at the same time. + +Warning! Current implementation uses quite naive, brute force algorithm, +which can make allocation calls that use #VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT +flag quite slow. A new, more optimal algorithm and data structure to speed this +up is planned for the future. + +Q: When interleaving creation of new allocations with usage of existing ones, +how do you make sure that an allocation won't become lost while it is used in the +current frame? + +It is ensured because vmaTouchAllocation() / vmaGetAllocationInfo() not only returns allocation +status/parameters and checks whether it is not lost, but when it is not, it also +atomically marks it as used in the current frame, which makes it impossible to +become lost in that frame. It uses lockless algorithm, so it works fast and +doesn't involve locking any internal mutex. + +Q: What if my allocation may still be in use by the GPU when it is rendering a +previous frame while I already submit new frame on the CPU? + +You can make sure that allocations "touched" by vmaTouchAllocation() / vmaGetAllocationInfo() will not +become lost for a number of additional frames back from the current one by +specifying this number as VmaAllocatorCreateInfo::frameInUseCount (for default +memory pool) and VmaPoolCreateInfo::frameInUseCount (for custom pool). + +Q: How do you inform the library when new frame starts? + +You need to call function vmaSetCurrentFrameIndex(). + +Example code: + +\code +struct MyBuffer +{ + VkBuffer m_Buf = nullptr; + VmaAllocation m_Alloc = nullptr; + + // Called when the buffer is really needed in the current frame. + void EnsureBuffer(); +}; + +void MyBuffer::EnsureBuffer() +{ + // Buffer has been created. + if(m_Buf != VK_NULL_HANDLE) + { + // Check if its allocation is not lost + mark it as used in current frame. + if(vmaTouchAllocation(allocator, m_Alloc)) + { + // It is all OK - safe to use m_Buf. + return; + } + } + + // Buffer not yet exists or lost - destroy and recreate it. + + vmaDestroyBuffer(allocator, m_Buf, m_Alloc); + + VkBufferCreateInfo bufCreateInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; + bufCreateInfo.size = 1024; + bufCreateInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; + + VmaAllocationCreateInfo allocCreateInfo = {}; + allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; + allocCreateInfo.flags = VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT | + VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT; + + vmaCreateBuffer(allocator, &bufCreateInfo, &allocCreateInfo, &m_Buf, &m_Alloc, nullptr); +} +\endcode + +When using lost allocations, you may see some Vulkan validation layer warnings +about overlapping regions of memory bound to different kinds of buffers and +images. This is still valid as long as you implement proper handling of lost +allocations (like in the example above) and don't use them. + +You can create an allocation that is already in lost state from the beginning using function +vmaCreateLostAllocation(). It may be useful if you need a "dummy" allocation that is not null. + +You can call function vmaMakePoolAllocationsLost() to set all eligible allocations +in a specified custom pool to lost state. +Allocations that have been "touched" in current frame or VmaPoolCreateInfo::frameInUseCount frames back +cannot become lost. + +Q: Can I touch allocation that cannot become lost? + +Yes, although it has no visible effect. +Calls to vmaGetAllocationInfo() and vmaTouchAllocation() update last use frame index +also for allocations that cannot become lost, but the only way to observe it is to dump +internal allocator state using vmaBuildStatsString(). +You can use this feature for debugging purposes to explicitly mark allocations that you use +in current frame and then analyze JSON dump to see for how long each allocation stays unused. + + +\page statistics Statistics + +This library contains functions that return information about its internal state, +especially the amount of memory allocated from Vulkan. +Please keep in mind that these functions need to traverse all internal data structures +to gather these information, so they may be quite time-consuming. +Don't call them too often. + +\section statistics_numeric_statistics Numeric statistics + +You can query for overall statistics of the allocator using function vmaCalculateStats(). +Information are returned using structure #VmaStats. +It contains #VmaStatInfo - number of allocated blocks, number of allocations +(occupied ranges in these blocks), number of unused (free) ranges in these blocks, +number of bytes used and unused (but still allocated from Vulkan) and other information. +They are summed across memory heaps, memory types and total for whole allocator. + +You can query for statistics of a custom pool using function vmaGetPoolStats(). +Information are returned using structure #VmaPoolStats. + +You can query for information about specific allocation using function vmaGetAllocationInfo(). +It fill structure #VmaAllocationInfo. + +\section statistics_json_dump JSON dump + +You can dump internal state of the allocator to a string in JSON format using function vmaBuildStatsString(). +The result is guaranteed to be correct JSON. +It uses ANSI encoding. +Any strings provided by user (see [Allocation names](@ref allocation_names)) +are copied as-is and properly escaped for JSON, so if they use UTF-8, ISO-8859-2 or any other encoding, +this JSON string can be treated as using this encoding. +It must be freed using function vmaFreeStatsString(). + +The format of this JSON string is not part of official documentation of the library, +but it will not change in backward-incompatible way without increasing library major version number +and appropriate mention in changelog. + +The JSON string contains all the data that can be obtained using vmaCalculateStats(). +It can also contain detailed map of allocated memory blocks and their regions - +free and occupied by allocations. +This allows e.g. to visualize the memory or assess fragmentation. + + +\page allocation_annotation Allocation names and user data + +\section allocation_user_data Allocation user data + +You can annotate allocations with your own information, e.g. for debugging purposes. +To do that, fill VmaAllocationCreateInfo::pUserData field when creating +an allocation. It is an opaque `void*` pointer. You can use it e.g. as a pointer, +some handle, index, key, ordinal number or any other value that would associate +the allocation with your custom metadata. + +\code +VkBufferCreateInfo bufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; +// Fill bufferInfo... + +MyBufferMetadata* pMetadata = CreateBufferMetadata(); + +VmaAllocationCreateInfo allocCreateInfo = {}; +allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; +allocCreateInfo.pUserData = pMetadata; + +VkBuffer buffer; +VmaAllocation allocation; +vmaCreateBuffer(allocator, &bufferInfo, &allocCreateInfo, &buffer, &allocation, nullptr); +\endcode + +The pointer may be later retrieved as VmaAllocationInfo::pUserData: + +\code +VmaAllocationInfo allocInfo; +vmaGetAllocationInfo(allocator, allocation, &allocInfo); +MyBufferMetadata* pMetadata = (MyBufferMetadata*)allocInfo.pUserData; +\endcode + +It can also be changed using function vmaSetAllocationUserData(). + +Values of (non-zero) allocations' `pUserData` are printed in JSON report created by +vmaBuildStatsString(), in hexadecimal form. + +\section allocation_names Allocation names + +There is alternative mode available where `pUserData` pointer is used to point to +a null-terminated string, giving a name to the allocation. To use this mode, +set #VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT flag in VmaAllocationCreateInfo::flags. +Then `pUserData` passed as VmaAllocationCreateInfo::pUserData or argument to +vmaSetAllocationUserData() must be either null or pointer to a null-terminated string. +The library creates internal copy of the string, so the pointer you pass doesn't need +to be valid for whole lifetime of the allocation. You can free it after the call. + +\code +VkImageCreateInfo imageInfo = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO }; +// Fill imageInfo... + +std::string imageName = "Texture: "; +imageName += fileName; + +VmaAllocationCreateInfo allocCreateInfo = {}; +allocCreateInfo.usage = VMA_MEMORY_USAGE_GPU_ONLY; +allocCreateInfo.flags = VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT; +allocCreateInfo.pUserData = imageName.c_str(); + +VkImage image; +VmaAllocation allocation; +vmaCreateImage(allocator, &imageInfo, &allocCreateInfo, &image, &allocation, nullptr); +\endcode + +The value of `pUserData` pointer of the allocation will be different than the one +you passed when setting allocation's name - pointing to a buffer managed +internally that holds copy of the string. + +\code +VmaAllocationInfo allocInfo; +vmaGetAllocationInfo(allocator, allocation, &allocInfo); +const char* imageName = (const char*)allocInfo.pUserData; +printf("Image name: %s\n", imageName); +\endcode + +That string is also printed in JSON report created by vmaBuildStatsString(). + +\note Passing string name to VMA allocation doesn't automatically set it to the Vulkan buffer or image created with it. +You must do it manually using an extension like VK_EXT_debug_utils, which is independent of this library. + + +\page debugging_memory_usage Debugging incorrect memory usage + +If you suspect a bug with memory usage, like usage of uninitialized memory or +memory being overwritten out of bounds of an allocation, +you can use debug features of this library to verify this. + +\section debugging_memory_usage_initialization Memory initialization + +If you experience a bug with incorrect and nondeterministic data in your program and you suspect uninitialized memory to be used, +you can enable automatic memory initialization to verify this. +To do it, define macro `VMA_DEBUG_INITIALIZE_ALLOCATIONS` to 1. + +\code +#define VMA_DEBUG_INITIALIZE_ALLOCATIONS 1 +#include "vk_mem_alloc.h" +\endcode + +It makes memory of all new allocations initialized to bit pattern `0xDCDCDCDC`. +Before an allocation is destroyed, its memory is filled with bit pattern `0xEFEFEFEF`. +Memory is automatically mapped and unmapped if necessary. + +If you find these values while debugging your program, good chances are that you incorrectly +read Vulkan memory that is allocated but not initialized, or already freed, respectively. + +Memory initialization works only with memory types that are `HOST_VISIBLE`. +It works also with dedicated allocations. +It doesn't work with allocations created with #VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT flag, +as they cannot be mapped. + +\section debugging_memory_usage_margins Margins + +By default, allocations are laid out in memory blocks next to each other if possible +(considering required alignment, `bufferImageGranularity`, and `nonCoherentAtomSize`). + +![Allocations without margin](../gfx/Margins_1.png) + +Define macro `VMA_DEBUG_MARGIN` to some non-zero value (e.g. 16) to enforce specified +number of bytes as a margin before and after every allocation. + +\code +#define VMA_DEBUG_MARGIN 16 +#include "vk_mem_alloc.h" +\endcode + +![Allocations with margin](../gfx/Margins_2.png) + +If your bug goes away after enabling margins, it means it may be caused by memory +being overwritten outside of allocation boundaries. It is not 100% certain though. +Change in application behavior may also be caused by different order and distribution +of allocations across memory blocks after margins are applied. + +The margin is applied also before first and after last allocation in a block. +It may occur only once between two adjacent allocations. + +Margins work with all types of memory. + +Margin is applied only to allocations made out of memory blocks and not to dedicated +allocations, which have their own memory block of specific size. +It is thus not applied to allocations made using #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT flag +or those automatically decided to put into dedicated allocations, e.g. due to its +large size or recommended by VK_KHR_dedicated_allocation extension. +Margins are also not active in custom pools created with #VMA_POOL_CREATE_BUDDY_ALGORITHM_BIT flag. + +Margins appear in [JSON dump](@ref statistics_json_dump) as part of free space. + +Note that enabling margins increases memory usage and fragmentation. + +\section debugging_memory_usage_corruption_detection Corruption detection + +You can additionally define macro `VMA_DEBUG_DETECT_CORRUPTION` to 1 to enable validation +of contents of the margins. + +\code +#define VMA_DEBUG_MARGIN 16 +#define VMA_DEBUG_DETECT_CORRUPTION 1 +#include "vk_mem_alloc.h" +\endcode + +When this feature is enabled, number of bytes specified as `VMA_DEBUG_MARGIN` +(it must be multiply of 4) before and after every allocation is filled with a magic number. +This idea is also know as "canary". +Memory is automatically mapped and unmapped if necessary. + +This number is validated automatically when the allocation is destroyed. +If it is not equal to the expected value, `VMA_ASSERT()` is executed. +It clearly means that either CPU or GPU overwritten the memory outside of boundaries of the allocation, +which indicates a serious bug. + +You can also explicitly request checking margins of all allocations in all memory blocks +that belong to specified memory types by using function vmaCheckCorruption(), +or in memory blocks that belong to specified custom pool, by using function +vmaCheckPoolCorruption(). + +Margin validation (corruption detection) works only for memory types that are +`HOST_VISIBLE` and `HOST_COHERENT`. + + +\page record_and_replay Record and replay + +\section record_and_replay_introduction Introduction + +While using the library, sequence of calls to its functions together with their +parameters can be recorded to a file and later replayed using standalone player +application. It can be useful to: + +- Test correctness - check if same sequence of calls will not cause crash or + failures on a target platform. +- Gather statistics - see number of allocations, peak memory usage, number of + calls etc. +- Benchmark performance - see how much time it takes to replay the whole + sequence. + +\section record_and_replay_usage Usage + +Recording functionality is disabled by default. +To enable it, define following macro before every include of this library: + +\code +#define VMA_RECORDING_ENABLED 1 +\endcode + +To record sequence of calls to a file: Fill in +VmaAllocatorCreateInfo::pRecordSettings member while creating #VmaAllocator +object. File is opened and written during whole lifetime of the allocator. + +To replay file: Use VmaReplay - standalone command-line program. +Precompiled binary can be found in "bin" directory. +Its source can be found in "src/VmaReplay" directory. +Its project is generated by Premake. +Command line syntax is printed when the program is launched without parameters. +Basic usage: + + VmaReplay.exe MyRecording.csv + +Documentation of file format can be found in file: "docs/Recording file format.md". +It is a human-readable, text file in CSV format (Comma Separated Values). + +\section record_and_replay_additional_considerations Additional considerations + +- Replaying file that was recorded on a different GPU (with different parameters + like `bufferImageGranularity`, `nonCoherentAtomSize`, and especially different + set of memory heaps and types) may give different performance and memory usage + results, as well as issue some warnings and errors. +- Current implementation of recording in VMA, as well as VmaReplay application, is + coded and tested only on Windows. Inclusion of recording code is driven by + `VMA_RECORDING_ENABLED` macro. Support for other platforms should be easy to + add. Contributions are welcomed. + + +\page opengl_interop OpenGL Interop + +VMA provides some features that help with interoperability with OpenGL. + +\section opengl_interop_exporting_memory Exporting memory + +If you want to attach `VkExportMemoryAllocateInfoKHR` structure to `pNext` chain of memory allocations made by the library: + +It is recommended to create \ref custom_memory_pools for such allocations. +Define and fill in your `VkExportMemoryAllocateInfoKHR` structure and attach it to VmaPoolCreateInfo::pMemoryAllocateNext +while creating the custom pool. +Please note that the structure must remain alive and unchanged for the whole lifetime of the #VmaPool, +not only while creating it, as no copy of the structure is made, +but its original pointer is used for each allocation instead. + +If you want to export all memory allocated by the library from certain memory types, +also dedicated allocations or other allocations made from default pools, +an alternative solution is to fill in VmaAllocatorCreateInfo::pTypeExternalMemoryHandleTypes. +It should point to an array with `VkExternalMemoryHandleTypeFlagsKHR` to be automatically passed by the library +through `VkExportMemoryAllocateInfoKHR` on each allocation made from a specific memory type. +This is currently the only method to use if you need exported dedicated allocations, as they cannot be created out of custom pools. +This will change in future versions of the library though. + +You should not mix these two methods in a way that allows to apply both to the same memory type. +Otherwise, `VkExportMemoryAllocateInfoKHR` structure would be attached twice to the `pNext` chain of `VkMemoryAllocateInfo`. + + +\section opengl_interop_custom_alignment Custom alignment + +Buffers or images exported to a different API like OpenGL may require a different alignment, +higher than the one used by the library automatically, queried from functions like `vkGetBufferMemoryRequirements`. +To impose such alignment: + +It is recommended to create \ref custom_memory_pools for such allocations. +Set VmaPoolCreateInfo::minAllocationAlignment member to the minimum alignment required for each allocation +to be made out of this pool. +The alignment actually used will be the maximum of this member and the alignment returned for the specific buffer or image +from a function like `vkGetBufferMemoryRequirements`, which is called by VMA automatically. + +If you want to create a buffer with a specific minimum alignment out of default pools, +use special function vmaCreateBufferWithAlignment(), which takes additional parameter `minAlignment`. +This is currently the only method to use if you need exported dedicated allocations, as they cannot be created out of custom pools. +This will change in future versions of the library though. + +Note the problem of alignment affects only resources placed inside bigger `VkDeviceMemory` blocks and not dedicated +allocations, as these, by definition, always have alignment = 0 because the resource is bound to the beginning of its dedicated block. +Contrary to Direct3D 12, Vulkan doesn't have a concept of alignment of the entire memory block passed on its allocation. + + +\page usage_patterns Recommended usage patterns + +See also slides from talk: +[Sawicki, Adam. Advanced Graphics Techniques Tutorial: Memory management in Vulkan and DX12. Game Developers Conference, 2018](https://www.gdcvault.com/play/1025458/Advanced-Graphics-Techniques-Tutorial-New) + + +\section usage_patterns_common_mistakes Common mistakes + +Use of CPU_TO_GPU instead of CPU_ONLY memory + +#VMA_MEMORY_USAGE_CPU_TO_GPU is recommended only for resources that will be +mapped and written by the CPU, as well as read directly by the GPU - like some +buffers or textures updated every frame (dynamic). If you create a staging copy +of a resource to be written by CPU and then used as a source of transfer to +another resource placed in the GPU memory, that staging resource should be +created with #VMA_MEMORY_USAGE_CPU_ONLY. Please read the descriptions of these +enums carefully for details. + +Unnecessary use of custom pools + +\ref custom_memory_pools may be useful for special purposes - when you want to +keep certain type of resources separate e.g. to reserve minimum amount of memory +for them, limit maximum amount of memory they can occupy, or make some of them +push out the other through the mechanism of \ref lost_allocations. For most +resources this is not needed and so it is not recommended to create #VmaPool +objects and allocations out of them. Allocating from the default pool is sufficient. + +\section usage_patterns_simple Simple patterns + +\subsection usage_patterns_simple_render_targets Render targets + +When: +Any resources that you frequently write and read on GPU, +e.g. images used as color attachments (aka "render targets"), depth-stencil attachments, +images/buffers used as storage image/buffer (aka "Unordered Access View (UAV)"). + +What to do: +Create them in video memory that is fastest to access from GPU using +#VMA_MEMORY_USAGE_GPU_ONLY. + +Consider using [VK_KHR_dedicated_allocation](@ref vk_khr_dedicated_allocation) extension +and/or manually creating them as dedicated allocations using #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT, +especially if they are large or if you plan to destroy and recreate them e.g. when +display resolution changes. +Prefer to create such resources first and all other GPU resources (like textures and vertex buffers) later. + +\subsection usage_patterns_simple_immutable_resources Immutable resources + +When: +Any resources that you fill on CPU only once (aka "immutable") or infrequently +and then read frequently on GPU, +e.g. textures, vertex and index buffers, constant buffers that don't change often. + +What to do: +Create them in video memory that is fastest to access from GPU using +#VMA_MEMORY_USAGE_GPU_ONLY. + +To initialize content of such resource, create a CPU-side (aka "staging") copy of it +in system memory - #VMA_MEMORY_USAGE_CPU_ONLY, map it, fill it, +and submit a transfer from it to the GPU resource. +You can keep the staging copy if you need it for another upload transfer in the future. +If you don't, you can destroy it or reuse this buffer for uploading different resource +after the transfer finishes. + +Prefer to create just buffers in system memory rather than images, even for uploading textures. +Use `vkCmdCopyBufferToImage()`. +Dont use images with `VK_IMAGE_TILING_LINEAR`. + +\subsection usage_patterns_dynamic_resources Dynamic resources + +When: +Any resources that change frequently (aka "dynamic"), e.g. every frame or every draw call, +written on CPU, read on GPU. + +What to do: +Create them using #VMA_MEMORY_USAGE_CPU_TO_GPU. +You can map it and write to it directly on CPU, as well as read from it on GPU. + +This is a more complex situation. Different solutions are possible, +and the best one depends on specific GPU type, but you can use this simple approach for the start. +Prefer to write to such resource sequentially (e.g. using `memcpy`). +Don't perform random access or any reads from it on CPU, as it may be very slow. +Also note that textures written directly from the host through a mapped pointer need to be in LINEAR not OPTIMAL layout. + +\subsection usage_patterns_readback Readback + +When: +Resources that contain data written by GPU that you want to read back on CPU, +e.g. results of some computations. + +What to do: +Create them using #VMA_MEMORY_USAGE_GPU_TO_CPU. +You can write to them directly on GPU, as well as map and read them on CPU. + +\section usage_patterns_advanced Advanced patterns + +\subsection usage_patterns_integrated_graphics Detecting integrated graphics + +You can support integrated graphics (like Intel HD Graphics, AMD APU) better +by detecting it in Vulkan. +To do it, call `vkGetPhysicalDeviceProperties()`, inspect +`VkPhysicalDeviceProperties::deviceType` and look for `VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU`. +When you find it, you can assume that memory is unified and all memory types are comparably fast +to access from GPU, regardless of `VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT`. + +You can then sum up sizes of all available memory heaps and treat them as useful for +your GPU resources, instead of only `DEVICE_LOCAL` ones. +You can also prefer to create your resources in memory types that are `HOST_VISIBLE` to map them +directly instead of submitting explicit transfer (see below). + +\subsection usage_patterns_direct_vs_transfer Direct access versus transfer + +For resources that you frequently write on CPU and read on GPU, many solutions are possible: + +-# Create one copy in video memory using #VMA_MEMORY_USAGE_GPU_ONLY, + second copy in system memory using #VMA_MEMORY_USAGE_CPU_ONLY and submit explicit transfer each time. +-# Create just a single copy using #VMA_MEMORY_USAGE_CPU_TO_GPU, map it and fill it on CPU, + read it directly on GPU. +-# Create just a single copy using #VMA_MEMORY_USAGE_CPU_ONLY, map it and fill it on CPU, + read it directly on GPU. + +Which solution is the most efficient depends on your resource and especially on the GPU. +It is best to measure it and then make the decision. +Some general recommendations: + +- On integrated graphics use (2) or (3) to avoid unnecessary time and memory overhead + related to using a second copy and making transfer. +- For small resources (e.g. constant buffers) use (2). + Discrete AMD cards have special 256 MiB pool of video memory that is directly mappable. + Even if the resource ends up in system memory, its data may be cached on GPU after first + fetch over PCIe bus. +- For larger resources (e.g. textures), decide between (1) and (2). + You may want to differentiate NVIDIA and AMD, e.g. by looking for memory type that is + both `DEVICE_LOCAL` and `HOST_VISIBLE`. When you find it, use (2), otherwise use (1). + +Similarly, for resources that you frequently write on GPU and read on CPU, multiple +solutions are possible: + +-# Create one copy in video memory using #VMA_MEMORY_USAGE_GPU_ONLY, + second copy in system memory using #VMA_MEMORY_USAGE_GPU_TO_CPU and submit explicit tranfer each time. +-# Create just single copy using #VMA_MEMORY_USAGE_GPU_TO_CPU, write to it directly on GPU, + map it and read it on CPU. + +You should take some measurements to decide which option is faster in case of your specific +resource. + +Note that textures accessed directly from the host through a mapped pointer need to be in LINEAR layout, +which may slow down their usage on the device. +Textures accessed only by the device and transfer operations can use OPTIMAL layout. + +If you don't want to specialize your code for specific types of GPUs, you can still make +an simple optimization for cases when your resource ends up in mappable memory to use it +directly in this case instead of creating CPU-side staging copy. +For details see [Finding out if memory is mappable](@ref memory_mapping_finding_if_memory_mappable). + + +\page configuration Configuration + +Please check "CONFIGURATION SECTION" in the code to find macros that you can define +before each include of this file or change directly in this file to provide +your own implementation of basic facilities like assert, `min()` and `max()` functions, +mutex, atomic etc. +The library uses its own implementation of containers by default, but you can switch to using +STL containers instead. + +For example, define `VMA_ASSERT(expr)` before including the library to provide +custom implementation of the assertion, compatible with your project. +By default it is defined to standard C `assert(expr)` in `_DEBUG` configuration +and empty otherwise. + +\section config_Vulkan_functions Pointers to Vulkan functions + +There are multiple ways to import pointers to Vulkan functions in the library. +In the simplest case you don't need to do anything. +If the compilation or linking of your program or the initialization of the #VmaAllocator +doesn't work for you, you can try to reconfigure it. + +First, the allocator tries to fetch pointers to Vulkan functions linked statically, +like this: + +\code +m_VulkanFunctions.vkAllocateMemory = (PFN_vkAllocateMemory)vkAllocateMemory; +\endcode + +If you want to disable this feature, set configuration macro: `#define VMA_STATIC_VULKAN_FUNCTIONS 0`. + +Second, you can provide the pointers yourself by setting member VmaAllocatorCreateInfo::pVulkanFunctions. +You can fetch them e.g. using functions `vkGetInstanceProcAddr` and `vkGetDeviceProcAddr` or +by using a helper library like [volk](https://github.com/zeux/volk). + +Third, VMA tries to fetch remaining pointers that are still null by calling +`vkGetInstanceProcAddr` and `vkGetDeviceProcAddr` on its own. +If you want to disable this feature, set configuration macro: `#define VMA_DYNAMIC_VULKAN_FUNCTIONS 0`. + +Finally, all the function pointers required by the library (considering selected +Vulkan version and enabled extensions) are checked with `VMA_ASSERT` if they are not null. + + +\section custom_memory_allocator Custom host memory allocator + +If you use custom allocator for CPU memory rather than default operator `new` +and `delete` from C++, you can make this library using your allocator as well +by filling optional member VmaAllocatorCreateInfo::pAllocationCallbacks. These +functions will be passed to Vulkan, as well as used by the library itself to +make any CPU-side allocations. + +\section allocation_callbacks Device memory allocation callbacks + +The library makes calls to `vkAllocateMemory()` and `vkFreeMemory()` internally. +You can setup callbacks to be informed about these calls, e.g. for the purpose +of gathering some statistics. To do it, fill optional member +VmaAllocatorCreateInfo::pDeviceMemoryCallbacks. + +\section heap_memory_limit Device heap memory limit + +When device memory of certain heap runs out of free space, new allocations may +fail (returning error code) or they may succeed, silently pushing some existing +memory blocks from GPU VRAM to system RAM (which degrades performance). This +behavior is implementation-dependent - it depends on GPU vendor and graphics +driver. + +On AMD cards it can be controlled while creating Vulkan device object by using +VK_AMD_memory_overallocation_behavior extension, if available. + +Alternatively, if you want to test how your program behaves with limited amount of Vulkan device +memory available without switching your graphics card to one that really has +smaller VRAM, you can use a feature of this library intended for this purpose. +To do it, fill optional member VmaAllocatorCreateInfo::pHeapSizeLimit. + + + +\page vk_khr_dedicated_allocation VK_KHR_dedicated_allocation + +VK_KHR_dedicated_allocation is a Vulkan extension which can be used to improve +performance on some GPUs. It augments Vulkan API with possibility to query +driver whether it prefers particular buffer or image to have its own, dedicated +allocation (separate `VkDeviceMemory` block) for better efficiency - to be able +to do some internal optimizations. + +The extension is supported by this library. It will be used automatically when +enabled. To enable it: + +1 . When creating Vulkan device, check if following 2 device extensions are +supported (call `vkEnumerateDeviceExtensionProperties()`). +If yes, enable them (fill `VkDeviceCreateInfo::ppEnabledExtensionNames`). + +- VK_KHR_get_memory_requirements2 +- VK_KHR_dedicated_allocation + +If you enabled these extensions: + +2 . Use #VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT flag when creating +your #VmaAllocator`to inform the library that you enabled required extensions +and you want the library to use them. + +\code +allocatorInfo.flags |= VMA_ALLOCATOR_CREATE_KHR_DEDICATED_ALLOCATION_BIT; + +vmaCreateAllocator(&allocatorInfo, &allocator); +\endcode + +That is all. The extension will be automatically used whenever you create a +buffer using vmaCreateBuffer() or image using vmaCreateImage(). + +When using the extension together with Vulkan Validation Layer, you will receive +warnings like this: + + vkBindBufferMemory(): Binding memory to buffer 0x33 but vkGetBufferMemoryRequirements() has not been called on that buffer. + +It is OK, you should just ignore it. It happens because you use function +`vkGetBufferMemoryRequirements2KHR()` instead of standard +`vkGetBufferMemoryRequirements()`, while the validation layer seems to be +unaware of it. + +To learn more about this extension, see: + +- [VK_KHR_dedicated_allocation in Vulkan specification](https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/chap50.html#VK_KHR_dedicated_allocation) +- [VK_KHR_dedicated_allocation unofficial manual](http://asawicki.info/articles/VK_KHR_dedicated_allocation.php5) + + + +\page vk_amd_device_coherent_memory VK_AMD_device_coherent_memory + +VK_AMD_device_coherent_memory is a device extension that enables access to +additional memory types with `VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD` and +`VK_MEMORY_PROPERTY_DEVICE_UNCACHED_BIT_AMD` flag. It is useful mostly for +allocation of buffers intended for writing "breadcrumb markers" in between passes +or draw calls, which in turn are useful for debugging GPU crash/hang/TDR cases. + +When the extension is available but has not been enabled, Vulkan physical device +still exposes those memory types, but their usage is forbidden. VMA automatically +takes care of that - it returns `VK_ERROR_FEATURE_NOT_PRESENT` when an attempt +to allocate memory of such type is made. + +If you want to use this extension in connection with VMA, follow these steps: + +\section vk_amd_device_coherent_memory_initialization Initialization + +1) Call `vkEnumerateDeviceExtensionProperties` for the physical device. +Check if the extension is supported - if returned array of `VkExtensionProperties` contains "VK_AMD_device_coherent_memory". + +2) Call `vkGetPhysicalDeviceFeatures2` for the physical device instead of old `vkGetPhysicalDeviceFeatures`. +Attach additional structure `VkPhysicalDeviceCoherentMemoryFeaturesAMD` to `VkPhysicalDeviceFeatures2::pNext` to be returned. +Check if the device feature is really supported - check if `VkPhysicalDeviceCoherentMemoryFeaturesAMD::deviceCoherentMemory` is true. + +3) While creating device with `vkCreateDevice`, enable this extension - add "VK_AMD_device_coherent_memory" +to the list passed as `VkDeviceCreateInfo::ppEnabledExtensionNames`. + +4) While creating the device, also don't set `VkDeviceCreateInfo::pEnabledFeatures`. +Fill in `VkPhysicalDeviceFeatures2` structure instead and pass it as `VkDeviceCreateInfo::pNext`. +Enable this device feature - attach additional structure `VkPhysicalDeviceCoherentMemoryFeaturesAMD` to +`VkPhysicalDeviceFeatures2::pNext` and set its member `deviceCoherentMemory` to `VK_TRUE`. + +5) While creating #VmaAllocator with vmaCreateAllocator() inform VMA that you +have enabled this extension and feature - add #VMA_ALLOCATOR_CREATE_AMD_DEVICE_COHERENT_MEMORY_BIT +to VmaAllocatorCreateInfo::flags. + +\section vk_amd_device_coherent_memory_usage Usage + +After following steps described above, you can create VMA allocations and custom pools +out of the special `DEVICE_COHERENT` and `DEVICE_UNCACHED` memory types on eligible +devices. There are multiple ways to do it, for example: + +- You can request or prefer to allocate out of such memory types by adding + `VK_MEMORY_PROPERTY_DEVICE_COHERENT_BIT_AMD` to VmaAllocationCreateInfo::requiredFlags + or VmaAllocationCreateInfo::preferredFlags. Those flags can be freely mixed with + other ways of \ref choosing_memory_type, like setting VmaAllocationCreateInfo::usage. +- If you manually found memory type index to use for this purpose, force allocation + from this specific index by setting VmaAllocationCreateInfo::memoryTypeBits `= 1u << index`. + +\section vk_amd_device_coherent_memory_more_information More information + +To learn more about this extension, see [VK_AMD_device_coherent_memory in Vulkan specification](https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/VK_AMD_device_coherent_memory.html) + +Example use of this extension can be found in the code of the sample and test suite +accompanying this library. + + +\page enabling_buffer_device_address Enabling buffer device address + +Device extension VK_KHR_buffer_device_address +allow to fetch raw GPU pointer to a buffer and pass it for usage in a shader code. +It is promoted to core Vulkan 1.2. + +If you want to use this feature in connection with VMA, follow these steps: + +\section enabling_buffer_device_address_initialization Initialization + +1) (For Vulkan version < 1.2) Call `vkEnumerateDeviceExtensionProperties` for the physical device. +Check if the extension is supported - if returned array of `VkExtensionProperties` contains +"VK_KHR_buffer_device_address". + +2) Call `vkGetPhysicalDeviceFeatures2` for the physical device instead of old `vkGetPhysicalDeviceFeatures`. +Attach additional structure `VkPhysicalDeviceBufferDeviceAddressFeatures*` to `VkPhysicalDeviceFeatures2::pNext` to be returned. +Check if the device feature is really supported - check if `VkPhysicalDeviceBufferDeviceAddressFeatures::bufferDeviceAddress` is true. + +3) (For Vulkan version < 1.2) While creating device with `vkCreateDevice`, enable this extension - add +"VK_KHR_buffer_device_address" to the list passed as `VkDeviceCreateInfo::ppEnabledExtensionNames`. + +4) While creating the device, also don't set `VkDeviceCreateInfo::pEnabledFeatures`. +Fill in `VkPhysicalDeviceFeatures2` structure instead and pass it as `VkDeviceCreateInfo::pNext`. +Enable this device feature - attach additional structure `VkPhysicalDeviceBufferDeviceAddressFeatures*` to +`VkPhysicalDeviceFeatures2::pNext` and set its member `bufferDeviceAddress` to `VK_TRUE`. + +5) While creating #VmaAllocator with vmaCreateAllocator() inform VMA that you +have enabled this feature - add #VMA_ALLOCATOR_CREATE_BUFFER_DEVICE_ADDRESS_BIT +to VmaAllocatorCreateInfo::flags. + +\section enabling_buffer_device_address_usage Usage + +After following steps described above, you can create buffers with `VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT*` using VMA. +The library automatically adds `VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT*` to +allocated memory blocks wherever it might be needed. + +Please note that the library supports only `VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT*`. +The second part of this functionality related to "capture and replay" is not supported, +as it is intended for usage in debugging tools like RenderDoc, not in everyday Vulkan usage. + +\section enabling_buffer_device_address_more_information More information + +To learn more about this extension, see [VK_KHR_buffer_device_address in Vulkan specification](https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/chap46.html#VK_KHR_buffer_device_address) + +Example use of this extension can be found in the code of the sample and test suite +accompanying this library. + +\page general_considerations General considerations + +\section general_considerations_thread_safety Thread safety + +- The library has no global state, so separate #VmaAllocator objects can be used + independently. + There should be no need to create multiple such objects though - one per `VkDevice` is enough. +- By default, all calls to functions that take #VmaAllocator as first parameter + are safe to call from multiple threads simultaneously because they are + synchronized internally when needed. +- When the allocator is created with #VMA_ALLOCATOR_CREATE_EXTERNALLY_SYNCHRONIZED_BIT + flag, calls to functions that take such #VmaAllocator object must be + synchronized externally. +- Access to a #VmaAllocation object must be externally synchronized. For example, + you must not call vmaGetAllocationInfo() and vmaMapMemory() from different + threads at the same time if you pass the same #VmaAllocation object to these + functions. + +\section general_considerations_validation_layer_warnings Validation layer warnings + +When using this library, you can meet following types of warnings issued by +Vulkan validation layer. They don't necessarily indicate a bug, so you may need +to just ignore them. + +- *vkBindBufferMemory(): Binding memory to buffer 0xeb8e4 but vkGetBufferMemoryRequirements() has not been called on that buffer.* + - It happens when VK_KHR_dedicated_allocation extension is enabled. + `vkGetBufferMemoryRequirements2KHR` function is used instead, while validation layer seems to be unaware of it. +- *Mapping an image with layout VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL can result in undefined behavior if this memory is used by the device. Only GENERAL or PREINITIALIZED should be used.* + - It happens when you map a buffer or image, because the library maps entire + `VkDeviceMemory` block, where different types of images and buffers may end + up together, especially on GPUs with unified memory like Intel. +- *Non-linear image 0xebc91 is aliased with linear buffer 0xeb8e4 which may indicate a bug.* + - It happens when you use lost allocations, and a new image or buffer is + created in place of an existing object that became lost. + - It may happen also when you use [defragmentation](@ref defragmentation). + +\section general_considerations_allocation_algorithm Allocation algorithm + +The library uses following algorithm for allocation, in order: + +-# Try to find free range of memory in existing blocks. +-# If failed, try to create a new block of `VkDeviceMemory`, with preferred block size. +-# If failed, try to create such block with size/2, size/4, size/8. +-# If failed and #VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT flag was + specified, try to find space in existing blocks, possilby making some other + allocations lost. +-# If failed, try to allocate separate `VkDeviceMemory` for this allocation, + just like when you use #VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT. +-# If failed, choose other memory type that meets the requirements specified in + VmaAllocationCreateInfo and go to point 1. +-# If failed, return `VK_ERROR_OUT_OF_DEVICE_MEMORY`. + +\section general_considerations_features_not_supported Features not supported + +Features deliberately excluded from the scope of this library: + +- **Data transfer.** Uploading (streaming) and downloading data of buffers and images + between CPU and GPU memory and related synchronization is responsibility of the user. + Defining some "texture" object that would automatically stream its data from a + staging copy in CPU memory to GPU memory would rather be a feature of another, + higher-level library implemented on top of VMA. +- **Recreation of buffers and images.** Although the library has functions for + buffer and image creation (vmaCreateBuffer(), vmaCreateImage()), you need to + recreate these objects yourself after defragmentation. That is because the big + structures `VkBufferCreateInfo`, `VkImageCreateInfo` are not stored in + #VmaAllocation object. +- **Handling CPU memory allocation failures.** When dynamically creating small C++ + objects in CPU memory (not Vulkan memory), allocation failures are not checked + and handled gracefully, because that would complicate code significantly and + is usually not needed in desktop PC applications anyway. + Success of an allocation is just checked with an assert. +- **Code free of any compiler warnings.** Maintaining the library to compile and + work correctly on so many different platforms is hard enough. Being free of + any warnings, on any version of any compiler, is simply not feasible. + There are many preprocessor macros that make some variables unused, function parameters unreferenced, + or conditional expressions constant in some configurations. + The code of this library should not be bigger or more complicated just to silence these warnings. + It is recommended to disable such warnings instead. +- This is a C++ library with C interface. **Bindings or ports to any other programming languages** are welcome as external projects but + are not going to be included into this repository. +*/