kc3-lang/angle/src/libANGLE/renderer/vulkan/vk_mem_alloc_wrapper.cpp

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• Hash : 6e0d718a
  Author :
  Date : 2020-03-31T18:41:57
  

  Vulkan: Implement device memory sub-allocation
  
  Use AMD Vulkan Memory Allocator for device memory sub-allocation.
  We now have a mempool from which all glBuffer memory is allocated.
  The CPU overhead involved in repeated IOCTL calls to the kernel is
  reduced significantly.
  
  Bug: angleproject:2162
  Change-Id: Id7681ffe2ac3d2853141ebe34c7df7b7fdd0d55e
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2124519
  Reviewed-by: Tobin Ehlis <tobine@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Mohan Maiya <m.maiya@samsung.com>
  

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• src/libANGLE/renderer/vulkan/vk_mem_alloc_wrapper.cpp

• //
  // Copyright 2020 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // vma_allocator_wrapper.cpp:
  //    Hides VMA functions so we can use separate warning sets.
  //
  
  #include "vk_mem_alloc_wrapper.h"
  
  #define VMA_IMPLEMENTATION
  #include <vk_mem_alloc.h>
  
  namespace vma
  {
  VkResult InitAllocator(VkPhysicalDevice physicalDevice,
                         VkDevice device,
                         VkInstance instance,
                         VmaAllocator *pAllocator)
  {
      VmaVulkanFunctions funcs;
      funcs.vkGetPhysicalDeviceProperties       = vkGetPhysicalDeviceProperties;
      funcs.vkGetPhysicalDeviceMemoryProperties = vkGetPhysicalDeviceMemoryProperties;
      funcs.vkAllocateMemory                    = vkAllocateMemory;
      funcs.vkFreeMemory                        = vkFreeMemory;
      funcs.vkMapMemory                         = vkMapMemory;
      funcs.vkUnmapMemory                       = vkUnmapMemory;
      funcs.vkFlushMappedMemoryRanges           = vkFlushMappedMemoryRanges;
      funcs.vkInvalidateMappedMemoryRanges      = vkInvalidateMappedMemoryRanges;
      funcs.vkBindBufferMemory                  = vkBindBufferMemory;
      funcs.vkBindImageMemory                   = vkBindImageMemory;
      funcs.vkGetBufferMemoryRequirements       = vkGetBufferMemoryRequirements;
      funcs.vkGetImageMemoryRequirements        = vkGetImageMemoryRequirements;
      funcs.vkCreateBuffer                      = vkCreateBuffer;
      funcs.vkDestroyBuffer                     = vkDestroyBuffer;
      funcs.vkCreateImage                       = vkCreateImage;
      funcs.vkDestroyImage                      = vkDestroyImage;
      funcs.vkCmdCopyBuffer                     = vkCmdCopyBuffer;
      funcs.vkGetBufferMemoryRequirements2KHR   = vkGetBufferMemoryRequirements2KHR;
      funcs.vkGetImageMemoryRequirements2KHR    = vkGetImageMemoryRequirements2KHR;
  
      VmaAllocatorCreateInfo allocatorInfo = {};
      allocatorInfo.physicalDevice         = physicalDevice;
      allocatorInfo.device                 = device;
      allocatorInfo.instance               = instance;
      allocatorInfo.pVulkanFunctions       = &funcs;
  
      return vmaCreateAllocator(&allocatorInfo, pAllocator);
  }
  
  void DestroyAllocator(VmaAllocator allocator)
  {
      vmaDestroyAllocator(allocator);
  }
  
  void FreeMemory(VmaAllocator allocator, VmaAllocation allocation)
  {
      vmaFreeMemory(allocator, allocation);
  }
  
  VkResult CreateBuffer(VmaAllocator allocator,
                        const VkBufferCreateInfo *pBufferCreateInfo,
                        VkMemoryPropertyFlags requiredFlags,
                        VkMemoryPropertyFlags preferredFlags,
                        uint32_t *pMemoryTypeIndexOut,
                        VkBuffer *pBuffer,
                        VmaAllocation *pAllocation)
  {
      VkResult result;
      VmaAllocationCreateInfo allocationCreateInfo = {};
      allocationCreateInfo.requiredFlags           = requiredFlags;
      allocationCreateInfo.preferredFlags          = preferredFlags;
      VmaAllocationInfo allocationInfo             = {};
  
      result = vmaCreateBuffer(allocator, pBufferCreateInfo, &allocationCreateInfo, pBuffer,
                               pAllocation, &allocationInfo);
      *pMemoryTypeIndexOut = allocationInfo.memoryType;
  
      return result;
  }
  
  void GetMemoryTypeProperties(VmaAllocator allocator,
                               uint32_t memoryTypeIndex,
                               VkMemoryPropertyFlags *pFlags)
  {
      vmaGetMemoryTypeProperties(allocator, memoryTypeIndex, pFlags);
  }
  
  VkResult MapMemory(VmaAllocator allocator, VmaAllocation allocation, void **ppData)
  {
      return vmaMapMemory(allocator, allocation, ppData);
  }
  
  void UnmapMemory(VmaAllocator allocator, VmaAllocation allocation)
  {
      return vmaUnmapMemory(allocator, allocation);
  }
  
  void FlushAllocation(VmaAllocator allocator,
                       VmaAllocation allocation,
                       VkDeviceSize offset,
                       VkDeviceSize size)
  {
      vmaFlushAllocation(allocator, allocation, offset, size);
  }
  
  void InvalidateAllocation(VmaAllocator allocator,
                            VmaAllocation allocation,
                            VkDeviceSize offset,
                            VkDeviceSize size)
  {
      vmaInvalidateAllocation(allocator, allocation, offset, size);
  }
  }  // namespace vma
  

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