mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-24 05:11:42 +00:00
743a732bd7
I'm not at all sure what I was thinking when I designed it, but I certainly designed it wrong (to the point of being fairly useless). It turns out memory requirements are already aligned in size (so just multiplying is fine), and what I really wanted was to get the next offset aligned to the given requirements.
171 lines
4.5 KiB
C
171 lines
4.5 KiB
C
/*
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buffer.c
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Vulkan buffer functions
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 2020 Bill Currie <bill@taniwha.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_MATH_H
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# include <math.h>
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include "QF/cvar.h"
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#include "QF/dstring.h"
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#include "QF/mathlib.h"
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#include "QF/qargs.h"
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#include "QF/quakefs.h"
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#include "QF/sys.h"
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#include "QF/va.h"
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#include "QF/vid.h"
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#include "QF/Vulkan/qf_vid.h"
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#include "QF/Vulkan/buffer.h"
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#include "QF/Vulkan/device.h"
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#include "QF/Vulkan/instance.h"
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#include "QF/Vulkan/memory.h"
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#include "compat.h"
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#include "d_iface.h"
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#include "r_internal.h"
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#include "vid_vulkan.h"
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#include "util.h"
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VkBuffer
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QFV_CreateBuffer (qfv_device_t *device, VkDeviceSize size,
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VkBufferUsageFlags usage)
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{
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VkDevice dev = device->dev;
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qfv_devfuncs_t *dfunc = device->funcs;
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VkBufferCreateInfo createInfo = {
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VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO, 0,
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0,
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size, usage, VK_SHARING_MODE_EXCLUSIVE,
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0, 0
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};
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VkBuffer buffer;
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dfunc->vkCreateBuffer (dev, &createInfo, 0, &buffer);
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return buffer;
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}
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VkDeviceMemory
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QFV_AllocBufferMemory (qfv_device_t *device,
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VkBuffer buffer, VkMemoryPropertyFlags properties,
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VkDeviceSize size, VkDeviceSize offset)
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{
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VkDevice dev = device->dev;
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qfv_physdev_t *physdev = device->physDev;
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VkPhysicalDeviceMemoryProperties *memprops = &physdev->memory_properties;
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qfv_devfuncs_t *dfunc = device->funcs;
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VkMemoryRequirements requirements;
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dfunc->vkGetBufferMemoryRequirements (dev, buffer, &requirements);
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size = max (size, offset + requirements.size);
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VkDeviceMemory object = 0;
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for (uint32_t type = 0; type < memprops->memoryTypeCount; type++) {
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if ((requirements.memoryTypeBits & (1 << type))
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&& ((memprops->memoryTypes[type].propertyFlags & properties)
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== properties)) {
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VkMemoryAllocateInfo allocate_info = {
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VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO, 0,
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size, type
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};
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VkResult res = dfunc->vkAllocateMemory (dev, &allocate_info,
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0, &object);
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if (res == VK_SUCCESS) {
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break;
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}
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}
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}
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return object;
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}
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int
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QFV_BindBufferMemory (qfv_device_t *device,
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VkBuffer buffer, VkDeviceMemory object,
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VkDeviceSize offset)
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{
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VkDevice dev = device->dev;
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qfv_devfuncs_t *dfunc = device->funcs;
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VkResult res = dfunc->vkBindBufferMemory (dev, buffer, object, offset);
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return res == VK_SUCCESS;
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}
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qfv_bufferbarrierset_t *
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QFV_CreateBufferTransitions (qfv_buffertransition_t *transitions,
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int numTransitions)
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{
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qfv_bufferbarrierset_t *barrierset;
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barrierset = DARRAY_ALLOCFIXED (*barrierset, numTransitions, malloc);
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for (int i = 0; i < numTransitions; i++) {
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barrierset->a[i].sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER;
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barrierset->a[i].pNext = 0;
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barrierset->a[i].srcAccessMask = transitions[i].srcAccess;
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barrierset->a[i].dstAccessMask = transitions[i].dstAccess;
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barrierset->a[i].srcQueueFamilyIndex = transitions[i].srcQueueFamily;
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barrierset->a[i].dstQueueFamilyIndex = transitions[i].dstQueueFamily;
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barrierset->a[i].buffer = transitions[i].buffer;
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barrierset->a[i].offset = transitions[i].offset;
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barrierset->a[i].size = transitions[i].size;
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}
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return barrierset;
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}
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VkBufferView
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QFV_CreateBufferView (qfv_device_t *device, VkBuffer buffer, VkFormat format,
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VkDeviceSize offset, VkDeviceSize size)
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{
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VkDevice dev = device->dev;
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qfv_devfuncs_t *dfunc = device->funcs;
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VkBufferViewCreateInfo createInfo = {
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VK_STRUCTURE_TYPE_BUFFER_VIEW_CREATE_INFO, 0,
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0,
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buffer, format, offset, size,
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};
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VkBufferView view;
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dfunc->vkCreateBufferView (dev, &createInfo, 0, &view);
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return view;
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}
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VkDeviceSize
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QFV_NextOffset (VkDeviceSize current, const VkMemoryRequirements *requirements)
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{
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VkDeviceSize align = requirements->alignment - 1;
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return ((current + align) & ~align);
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}
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