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https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-29 07:32:02 +00:00
Create a logical device with a single queue
A single graphics-capable queue should be enough for now. However, I'm not sure I'm happy with a lot of the code: it's a bit difficult to write flexibly configured code for Vulkan (or seems to be at this stage), especially in C.
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4 changed files with 138 additions and 7 deletions
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@ -24,13 +24,13 @@ GLOBAL_LEVEL_VULKAN_FUNCTION (vkCreateInstance)
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INSTANCE_LEVEL_VULKAN_FUNCTION (vkEnumeratePhysicalDevices)
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INSTANCE_LEVEL_VULKAN_FUNCTION (vkGetPhysicalDeviceProperties)
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INSTANCE_LEVEL_VULKAN_FUNCTION (vkGetPhysicalDeviceFeatures)
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INSTANCE_LEVEL_VULKAN_FUNCTION (vkGetPhysicalDeviceQueueFamilyProperties)
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INSTANCE_LEVEL_VULKAN_FUNCTION (vkCreateDevice)
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INSTANCE_LEVEL_VULKAN_FUNCTION (vkGetDeviceProcAddr)
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INSTANCE_LEVEL_VULKAN_FUNCTION (vkDestroyInstance)
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INSTANCE_LEVEL_VULKAN_FUNCTION (vkEnumerateDeviceLayerProperties)
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INSTANCE_LEVEL_VULKAN_FUNCTION (vkEnumerateDeviceExtensionProperties)
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INSTANCE_LEVEL_VULKAN_FUNCTION (vkGetPhysicalDeviceMemoryProperties)
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INSTANCE_LEVEL_VULKAN_FUNCTION (vkGetPhysicalDeviceQueueFamilyProperties)
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INSTANCE_LEVEL_VULKAN_FUNCTION (vkDestroyInstance)
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#undef INSTANCE_LEVEL_VULKAN_FUNCTION
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@ -46,6 +46,8 @@ INSTANCE_LEVEL_VULKAN_FUNCTION_EXTENSION (vkCreateDebugUtilsMessengerEXT)
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#define DEVICE_LEVEL_VULKAN_FUNCTION(function)
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#endif
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DEVICE_LEVEL_VULKAN_FUNCTION (vkGetDeviceQueue)
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#undef DEVICE_LEVEL_VULKAN_FUNCTION
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#ifndef DEVICE_LEVEL_VULKAN_FUNCTION_EXTENSION
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@ -31,14 +31,23 @@
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#include "QF/qtypes.h"
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#include "QF/Vulkan/funcs.h"
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typedef struct {
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VkDevice device;
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VkQueue queue;
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#define DEVICE_LEVEL_VULKAN_FUNCTION(name) PFN_##name name;
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#define DEVICE_LEVEL_VULKAN_FUNCTION_EXTENSION(name) PFN_##name name;
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#include "QF/Vulkan/funclist.h"
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} VulkanDevice_t;
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typedef struct {
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VkPhysicalDevice device;
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VkPhysicalDeviceFeatures features;
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VkPhysicalDeviceProperties properties;
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uint32_t numLayers;
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VkLayerProperties *layers;
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uint32_t numExtensions;
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VkExtensionProperties *extensions;
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VkPhysicalDeviceFeatures features;
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VkPhysicalDeviceMemoryProperties memory;
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uint32_t numQueueFamilies;
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VkQueueFamilyProperties *queueFamilies;
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@ -61,5 +70,8 @@ VulkanInstance_t *Vulkan_CreateInstance (const char *appName,
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const char **layers,
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const char **extensions);
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void Vulkan_DestroyInstance (VulkanInstance_t *instance);
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int Vulkan_ExtensionsSupported (const VkExtensionProperties *extensions,
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int numExtensions,
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const char * const *requested);
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#endif // __QF_Vulkan_init_h
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@ -388,3 +388,23 @@ Vulkan_DestroyInstance (VulkanInstance_t *instance)
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instance->vkDestroyInstance (instance->instance, 0);
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free (instance);
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}
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int
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Vulkan_ExtensionsSupported (const VkExtensionProperties *extensions,
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int numExtensions,
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const char * const *requested)
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{
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while (*requested) {
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int i;
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for (i = 0; i < numExtensions; i++) {
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if (!strcmp (*requested, extensions[i].extensionName)) {
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break;
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}
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}
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if (i < numExtensions) {
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// requested extension not found
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break;
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}
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}
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return !*requested;
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}
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@ -59,6 +59,7 @@
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static void *vulkan_library;
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static VulkanInstance_t *vulkan_instance;
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static VulkanDevice_t *vulkan_device;
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static void
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load_vulkan_library (void)
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@ -102,21 +103,117 @@ Vulkan_Init_Cvars ()
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"restart).");
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}
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const char *extensions[] = {
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"foo",
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static const char *instance_extensions[] = {
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0,
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};
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static const char *device_extensions[] = {
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0,
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};
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static int
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count_bits (uint32_t val)
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{
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int bits = 0;
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while (val) {
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bits += val & 1;
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val >>= 1;
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}
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return bits;
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}
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static int
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find_queue_family (VulkanPhysDevice_t *dev, uint32_t flags)
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{
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int best_diff = 32;
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uint32_t family = -1;
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for (uint32_t i = 0; i < dev->numQueueFamilies; i++) {
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VkQueueFamilyProperties *queue = &dev->queueFamilies[i];
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if ((queue->queueFlags & flags) == flags) {
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int diff = count_bits (queue->queueFlags & ~flags);
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if (diff < best_diff) {
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best_diff = diff;
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family = i;
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}
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}
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}
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return family;
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}
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static void
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load_device_funcs (VulkanInstance_t *inst, VulkanDevice_t *dev)
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{
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#define DEVICE_LEVEL_VULKAN_FUNCTION(name) \
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dev->name = (PFN_##name) inst->vkGetDeviceProcAddr (dev->device, #name); \
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if (!dev->name) { \
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Sys_Error ("Couldn't find device level function %s", #name); \
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}
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#define DEVICE_LEVEL_VULKAN_FUNCTION_EXTENSION(name) \
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dev->name = (PFN_##name) inst->vkGetDeviceProcAddr (dev->device, #name); \
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if (!dev->name) { \
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Sys_Printf ("Couldn't find device level function %s", #name); \
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}
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#include "QF/Vulkan/funclist.h"
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}
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static VulkanDevice_t *
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create_suitable_device (VulkanInstance_t *instance)
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{
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for (uint32_t i = 0; i < instance->numDevices; i++) {
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VulkanPhysDevice_t *phys = &instance->devices[i];
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if (!Vulkan_ExtensionsSupported (phys->extensions, phys->numExtensions,
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device_extensions)) {
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return 0;
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}
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int family = find_queue_family (phys, VK_QUEUE_GRAPHICS_BIT);
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if (family < 0) {
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return 0;
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}
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float priority = 1;
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VkDeviceQueueCreateInfo qCreateInfo = {
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VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, 0, 0,
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family, 1, &priority
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};
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VkPhysicalDeviceFeatures features;
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VkDeviceCreateInfo dCreateInfo = {
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VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO, 0, 0,
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1, &qCreateInfo,
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0, 0,
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0, device_extensions,
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&features
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};
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memset (&features, 0, sizeof (features));
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VulkanDevice_t *device = calloc (1, sizeof (VulkanDevice_t));
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if (instance->vkCreateDevice (phys->device, &dCreateInfo, 0,
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&device->device) == VK_SUCCESS) {
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load_device_funcs (instance, device);
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device->vkGetDeviceQueue (device->device, family,
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0, &device->queue);
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return device;
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}
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}
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return 0;
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}
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void
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Vulkan_Init_Common (void)
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{
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Sys_Printf ("Vulkan_Init_Common\n");
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Vulkan_Init_Cvars ();
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load_vulkan_library ();
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vulkan_instance = Vulkan_CreateInstance (PACKAGE_STRING, 0x000702ff, 0, extensions);//FIXME version
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Sys_Printf ("Vulkan_Init_Common\n");
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vulkan_instance = Vulkan_CreateInstance (PACKAGE_STRING, 0x000702ff, 0, instance_extensions);//FIXME version
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vulkan_device = create_suitable_device (vulkan_instance);
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if (!vulkan_device) {
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Sys_Error ("no suitable vulkan device found");
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}
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if (developer->int_val & SYS_VID) {
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Sys_Printf ("%p %p\n", vulkan_device->device, vulkan_device->queue);
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Vulkan_DestroyInstance (vulkan_instance);
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Sys_Quit();
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}
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