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

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• Hash : 421dbf20
  Author :
  Date : 2021-10-26T19:06:19
  

  Revert "Vulkan: Use different strategy for buffer memory allocation"
  
  This reverts commit 0dbe308d91a3526e28fecd9014d873c649f4ef71.
  
  Reason for revert: crbug.com/1253325
  
  Original change's description:
  > Vulkan: Use different strategy for buffer memory allocation
  >
  > This CL uses different memory allocation strategy based on the requested
  > size. If the requested size exceeds 1M, we use dedicated memory
  > allocation to avoid memory waste associated with the sub-allocator.
  > Otherwise we uses VMA's sub-allocator pool.  This CL creates two sets of
  > customized pool so that we uses different allocation strategy for each
  > set of pool: the small pool uses buddy algorithm which favors speed over
  > memory and large pool uses default algorithm that favors memory saving
  > over speed. This CL also replaces vmaFindMemoryTypeIndexForBufferInfo
  > with vmaFindMemoryTypeIndex to avoid create and destroy VkBuffer object
  > just try to find memoryTypeIndex.
  >
  > Bug: b/195588159
  > Change-Id: I2bddbfffd77ba2ce6b9389d83a31051c4b748c4d
  > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2939490
  > Commit-Queue: Charlie Lao <cclao@google.com>
  > Reviewed-by: Jamie Madill <jmadill@chromium.org>
  > Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  > Reviewed-by: Tim Van Patten <timvp@google.com>
  
  Bug: b/195588159
  Change-Id: I2c8fe8cb2930d16f5212570d32be68e7c6a6e5f3
  No-Presubmit: true
  No-Tree-Checks: true
  No-Try: true
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3244258
  Reviewed-by: Charlie Lao <cclao@google.com>
  Commit-Queue: Charlie Lao <cclao@google.com>
  Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
  

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

• //
  // 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.h:
  //    Hides VMA functions so we can use separate warning sets.
  //
  
  #ifndef LIBANGLE_RENDERER_VULKAN_VK_MEM_ALLOC_WRAPPER_H_
  #define LIBANGLE_RENDERER_VULKAN_VK_MEM_ALLOC_WRAPPER_H_
  
  #include "common/vulkan/vk_headers.h"
  
  VK_DEFINE_HANDLE(VmaAllocator)
  VK_DEFINE_HANDLE(VmaAllocation)
  VK_DEFINE_HANDLE(VmaPool)
  
  namespace vma
  {
  VkResult InitAllocator(VkPhysicalDevice physicalDevice,
                         VkDevice device,
                         VkInstance instance,
                         uint32_t apiVersion,
                         VkDeviceSize preferredLargeHeapBlockSize,
                         VmaAllocator *pAllocator);
  
  void DestroyAllocator(VmaAllocator allocator);
  
  VkResult CreatePool(VmaAllocator allocator,
                      uint32_t memoryTypeIndex,
                      bool buddyAlgorithm,
                      VkDeviceSize blockSize,
                      VmaPool *pPool);
  void DestroyPool(VmaAllocator allocator, VmaPool pool);
  
  void FreeMemory(VmaAllocator allocator, VmaAllocation allocation);
  
  VkResult CreateBuffer(VmaAllocator allocator,
                        const VkBufferCreateInfo *pBufferCreateInfo,
                        VkMemoryPropertyFlags requiredFlags,
                        VkMemoryPropertyFlags preferredFlags,
                        bool persistentlyMappedBuffers,
                        uint32_t *pMemoryTypeIndexOut,
                        VkBuffer *pBuffer,
                        VmaAllocation *pAllocation);
  
  VkResult FindMemoryTypeIndexForBufferInfo(VmaAllocator allocator,
                                            const VkBufferCreateInfo *pBufferCreateInfo,
                                            VkMemoryPropertyFlags requiredFlags,
                                            VkMemoryPropertyFlags preferredFlags,
                                            bool persistentlyMappedBuffers,
                                            uint32_t *pMemoryTypeIndexOut);
  
  void GetMemoryTypeProperties(VmaAllocator allocator,
                               uint32_t memoryTypeIndex,
                               VkMemoryPropertyFlags *pFlags);
  
  VkResult MapMemory(VmaAllocator allocator, VmaAllocation allocation, void **ppData);
  
  void UnmapMemory(VmaAllocator allocator, VmaAllocation allocation);
  
  void FlushAllocation(VmaAllocator allocator,
                       VmaAllocation allocation,
                       VkDeviceSize offset,
                       VkDeviceSize size);
  
  void InvalidateAllocation(VmaAllocator allocator,
                            VmaAllocation allocation,
                            VkDeviceSize offset,
                            VkDeviceSize size);
  
  void BuildStatsString(VmaAllocator allocator, char **statsString, VkBool32 detailedMap);
  void FreeStatsString(VmaAllocator allocator, char *statsString);
  
  }  // namespace vma
  
  #endif  // LIBANGLE_RENDERER_VULKAN_VK_MEM_ALLOC_WRAPPER_H_
  

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