kc3-lang/angle/src/libANGLE/renderer/d3d/d3d11/Buffer11.h

• Show log

  Commit

• Hash : 0af8b596
  Author :
  Date : 2019-09-03T16:24:45
  

  D3D11: Translate uniform blocks to StructuredBuffer when necessary
  
  fxc exhibits slow compile performance with dynamic cbuffer indexing.
  So when a uniform block contains only one large array member, which is
  an array of structures, translate this uniform block to
  a StructuredBuffer instead.
  
  Bug: angleproject:3682
  TEST=angle_end2end_tests.UniformBufferTest.*
  Change-Id: Ife80dba8aae65b761737e095895e00a570230f88
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1782046
  Commit-Queue: Xinghua Cao <xinghua.cao@intel.com>
  Reviewed-by: Kenneth Russell <kbr@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

Download

• src/libANGLE/renderer/d3d/d3d11/Buffer11.h

• //
  // Copyright 2014 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.
  //
  
  // Buffer11.h: Defines the rx::Buffer11 class which implements rx::BufferImpl via rx::BufferD3D.
  
  #ifndef LIBANGLE_RENDERER_D3D_D3D11_BUFFER11_H_
  #define LIBANGLE_RENDERER_D3D_D3D11_BUFFER11_H_
  
  #include <array>
  #include <map>
  
  #include "libANGLE/angletypes.h"
  #include "libANGLE/renderer/d3d/BufferD3D.h"
  #include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"
  
  namespace gl
  {
  class FramebufferAttachment;
  }
  
  namespace rx
  {
  struct PackPixelsParams;
  class Renderer11;
  struct SourceIndexData;
  struct TranslatedAttribute;
  
  // The order of this enum governs priority of 'getLatestBufferStorage'.
  enum BufferUsage
  {
      BUFFER_USAGE_SYSTEM_MEMORY,
      BUFFER_USAGE_STAGING,
      BUFFER_USAGE_VERTEX_OR_TRANSFORM_FEEDBACK,
      BUFFER_USAGE_INDEX,
      BUFFER_USAGE_INDIRECT,
      BUFFER_USAGE_PIXEL_UNPACK,
      BUFFER_USAGE_PIXEL_PACK,
      BUFFER_USAGE_UNIFORM,
      BUFFER_USAGE_STRUCTURED,
      BUFFER_USAGE_EMULATED_INDEXED_VERTEX,
      BUFFER_USAGE_RAW_UAV,
  
      BUFFER_USAGE_COUNT,
  };
  
  typedef size_t DataRevision;
  
  class Buffer11 : public BufferD3D
  {
    public:
      Buffer11(const gl::BufferState &state, Renderer11 *renderer);
      ~Buffer11() override;
  
      angle::Result getBuffer(const gl::Context *context,
                              BufferUsage usage,
                              ID3D11Buffer **bufferOut);
      angle::Result getEmulatedIndexedBuffer(const gl::Context *context,
                                             SourceIndexData *indexInfo,
                                             const TranslatedAttribute &attribute,
                                             GLint startVertex,
                                             ID3D11Buffer **bufferOut);
      angle::Result getConstantBufferRange(const gl::Context *context,
                                           GLintptr offset,
                                           GLsizeiptr size,
                                           const d3d11::Buffer **bufferOut,
                                           UINT *firstConstantOut,
                                           UINT *numConstantsOut);
      angle::Result getStructuredBufferRangeSRV(const gl::Context *context,
                                                unsigned int offset,
                                                unsigned int size,
                                                unsigned int structureByteStride,
                                                const d3d11::ShaderResourceView **srvOut);
      angle::Result getSRV(const gl::Context *context,
                           DXGI_FORMAT srvFormat,
                           const d3d11::ShaderResourceView **srvOut);
      angle::Result getRawUAVRange(const gl::Context *context,
                                   GLintptr offset,
                                   GLsizeiptr size,
                                   d3d11::UnorderedAccessView **uavOut);
  
      angle::Result markRawBufferUsage(const gl::Context *context);
      bool isMapped() const { return mMappedStorage != nullptr; }
      angle::Result packPixels(const gl::Context *context,
                               const gl::FramebufferAttachment &readAttachment,
                               const PackPixelsParams &params);
      size_t getTotalCPUBufferMemoryBytes() const;
  
      // BufferD3D implementation
      size_t getSize() const override;
      bool supportsDirectBinding() const override;
      angle::Result getData(const gl::Context *context, const uint8_t **outData) override;
      void initializeStaticData(const gl::Context *context) override;
      void invalidateStaticData(const gl::Context *context) override;
  
      // BufferImpl implementation
      angle::Result setData(const gl::Context *context,
                            gl::BufferBinding target,
                            const void *data,
                            size_t size,
                            gl::BufferUsage usage) override;
      angle::Result setSubData(const gl::Context *context,
                               gl::BufferBinding target,
                               const void *data,
                               size_t size,
                               size_t offset) override;
      angle::Result copySubData(const gl::Context *context,
                                BufferImpl *source,
                                GLintptr sourceOffset,
                                GLintptr destOffset,
                                GLsizeiptr size) override;
      angle::Result map(const gl::Context *context, GLenum access, void **mapPtr) override;
      angle::Result mapRange(const gl::Context *context,
                             size_t offset,
                             size_t length,
                             GLbitfield access,
                             void **mapPtr) override;
      angle::Result unmap(const gl::Context *context, GLboolean *result) override;
      angle::Result markTransformFeedbackUsage(const gl::Context *context) override;
  
    private:
      class BufferStorage;
      class EmulatedIndexedStorage;
      class NativeStorage;
      class PackStorage;
      class SystemMemoryStorage;
      class StructuredBufferStorage;
  
      struct BufferCacheEntry
      {
          BufferCacheEntry() : storage(nullptr), lruCount(0) {}
  
          BufferStorage *storage;
          unsigned int lruCount;
      };
  
      struct StructuredBufferKey
      {
          StructuredBufferKey(unsigned int offsetIn, unsigned int structureByteStrideIn)
              : offset(offsetIn), structureByteStride(structureByteStrideIn)
          {}
          bool operator<(const StructuredBufferKey &rhs) const
          {
              return std::tie(offset, structureByteStride) <
                     std::tie(rhs.offset, rhs.structureByteStride);
          }
          unsigned int offset;
          unsigned int structureByteStride;
      };
  
      void markBufferUsage(BufferUsage usage);
      angle::Result markBufferUsage(const gl::Context *context, BufferUsage usage);
      angle::Result garbageCollection(const gl::Context *context, BufferUsage currentUsage);
  
      angle::Result updateBufferStorage(const gl::Context *context,
                                        BufferStorage *storage,
                                        size_t sourceOffset,
                                        size_t storageSize);
  
      angle::Result getNativeStorageForUAV(const gl::Context *context,
                                           Buffer11::NativeStorage **storageOut);
  
      template <typename StorageOutT>
      angle::Result getBufferStorage(const gl::Context *context,
                                     BufferUsage usage,
                                     StorageOutT **storageOut);
  
      template <typename StorageOutT>
      angle::Result getStagingStorage(const gl::Context *context, StorageOutT **storageOut);
  
      angle::Result getLatestBufferStorage(const gl::Context *context,
                                           BufferStorage **storageOut) const;
  
      angle::Result getConstantBufferRangeStorage(const gl::Context *context,
                                                  GLintptr offset,
                                                  GLsizeiptr size,
                                                  NativeStorage **storageOut);
  
      BufferStorage *allocateStorage(BufferUsage usage);
      void updateDeallocThreshold(BufferUsage usage);
  
      // Free the storage if we decide it isn't being used very often.
      angle::Result checkForDeallocation(const gl::Context *context, BufferUsage usage);
  
      // For some cases of uniform buffer storage, we can't deallocate system memory storage.
      bool canDeallocateSystemMemory() const;
  
      // Updates data revisions and latest storage.
      void onCopyStorage(BufferStorage *dest, BufferStorage *source);
      void onStorageUpdate(BufferStorage *updatedStorage);
  
      Renderer11 *mRenderer;
      size_t mSize;
  
      BufferStorage *mMappedStorage;
  
      // Buffer storages are sorted by usage. It's important that the latest buffer storage picks
      // the lowest usage in the case where two storages are tied on data revision - this ensures
      // we never do anything dangerous like map a uniform buffer over a staging or system memory
      // copy.
      std::array<BufferStorage *, BUFFER_USAGE_COUNT> mBufferStorages;
      BufferStorage *mLatestBufferStorage;
  
      // These two arrays are used to track when to free unused storage.
      std::array<unsigned int, BUFFER_USAGE_COUNT> mDeallocThresholds;
      std::array<unsigned int, BUFFER_USAGE_COUNT> mIdleness;
  
      // Cache of D3D11 constant buffer for specific ranges of buffer data.
      // This is used to emulate UBO ranges on 11.0 devices.
      // Constant buffers are indexed by there start offset.
      typedef std::map<GLintptr /*offset*/, BufferCacheEntry> BufferCache;
      BufferCache mConstantBufferRangeStoragesCache;
      size_t mConstantBufferStorageAdditionalSize;
      unsigned int mMaxConstantBufferLruCount;
  
      typedef std::map<StructuredBufferKey, BufferCacheEntry> StructuredBufferCache;
      StructuredBufferCache mStructuredBufferRangeStoragesCache;
      size_t mStructuredBufferStorageAdditionalSize;
      unsigned int mMaxStructuredBufferLruCount;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_D3D_D3D11_BUFFER11_H_
  

Download