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

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• Hash : e4857c7d
  Author :
  Date : 2016-04-21T14:13:53
  

  Buffer11: Use adaptive threshold for releasing system memory.
  
  The hard-coded threshold of five uses before a release was regressing
  the Oort online benchmark, which seems to use an index buffer many
  times, then change to a different range of indices, which would need
  to check the system memory for index range validation.
  
  Also add a performance regression test, and an update to the perf
  runner script which checks for the most recent binary among the search
  directories.
  
  BUG=594066
  
  Change-Id: Id09cc32fd00bff1c72cbe9b6fb7c210fd047a551
  Reviewed-on: https://chromium-review.googlesource.com/339271
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• 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 <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
  {
  class Renderer11;
  struct SourceIndexData;
  struct TranslatedAttribute;
  
  enum BufferUsage
  {
      BUFFER_USAGE_STAGING,
      BUFFER_USAGE_VERTEX_OR_TRANSFORM_FEEDBACK,
      BUFFER_USAGE_INDEX,
      BUFFER_USAGE_PIXEL_UNPACK,
      BUFFER_USAGE_PIXEL_PACK,
      BUFFER_USAGE_UNIFORM,
      BUFFER_USAGE_SYSTEM_MEMORY,
      BUFFER_USAGE_EMULATED_INDEXED_VERTEX,
  
      BUFFER_USAGE_COUNT,
  };
  
  struct PackPixelsParams
  {
      PackPixelsParams();
      PackPixelsParams(const gl::Rectangle &area, GLenum format, GLenum type, GLuint outputPitch,
                       const gl::PixelPackState &pack, ptrdiff_t offset);
  
      gl::Rectangle area;
      GLenum format;
      GLenum type;
      GLuint outputPitch;
      gl::Buffer *packBuffer;
      gl::PixelPackState pack;
      ptrdiff_t offset;
  };
  
  typedef size_t DataRevision;
  
  class Buffer11 : public BufferD3D
  {
    public:
      Buffer11(Renderer11 *renderer);
      virtual ~Buffer11();
  
      gl::ErrorOrResult<ID3D11Buffer *> getBuffer(BufferUsage usage);
      gl::ErrorOrResult<ID3D11Buffer *> getEmulatedIndexedBuffer(SourceIndexData *indexInfo,
                                                                 const TranslatedAttribute &attribute,
                                                                 GLint startVertex);
      gl::ErrorOrResult<ID3D11Buffer *> getConstantBufferRange(GLintptr offset, GLsizeiptr size);
      gl::ErrorOrResult<ID3D11ShaderResourceView *> getSRV(DXGI_FORMAT srvFormat);
      bool isMapped() const { return mMappedStorage != nullptr; }
      gl::Error packPixels(const gl::FramebufferAttachment &readAttachment,
                           const PackPixelsParams &params);
      size_t getTotalCPUBufferMemoryBytes() const;
  
      // BufferD3D implementation
      size_t getSize() const override { return mSize; }
      bool supportsDirectBinding() const override;
      gl::Error getData(const uint8_t **outData) override;
      void initializeStaticData() override;
      void invalidateStaticData() override;
  
      // BufferImpl implementation
      gl::Error setData(const void *data, size_t size, GLenum usage) override;
      gl::Error setSubData(const void *data, size_t size, size_t offset) override;
      gl::Error copySubData(BufferImpl *source,
                            GLintptr sourceOffset,
                            GLintptr destOffset,
                            GLsizeiptr size) override;
      gl::Error map(GLenum access, GLvoid **mapPtr) override;
      gl::Error mapRange(size_t offset, size_t length, GLbitfield access, GLvoid **mapPtr) override;
      gl::Error unmap(GLboolean *result) override;
      gl::Error markTransformFeedbackUsage() override;
  
      // We use two set of dirty callbacks for two events. Static buffers are marked dirty whenever
      // the data is changed, because they must be re-translated. Direct buffers only need to be
      // updated when the underlying ID3D11Buffer pointer changes - hopefully far less often.
      void addStaticBufferDirtyCallback(const NotificationCallback *callback);
      void removeStaticBufferDirtyCallback(const NotificationCallback *callback);
  
      void addDirectBufferDirtyCallback(const NotificationCallback *callback);
      void removeDirectBufferDirtyCallback(const NotificationCallback *callback);
  
    private:
      class BufferStorage;
      class EmulatedIndexedStorage;
      class NativeStorage;
      class PackStorage;
      class SystemMemoryStorage;
  
      struct ConstantBufferCacheEntry
      {
          ConstantBufferCacheEntry() : storage(nullptr), lruCount(0) { }
  
          BufferStorage *storage;
          unsigned int lruCount;
      };
  
      gl::Error markBufferUsage();
      gl::ErrorOrResult<NativeStorage *> getStagingStorage();
      gl::ErrorOrResult<PackStorage *> getPackStorage();
      gl::ErrorOrResult<SystemMemoryStorage *> getSystemMemoryStorage();
  
      gl::Error updateBufferStorage(BufferStorage *storage, size_t sourceOffset, size_t storageSize);
      gl::ErrorOrResult<BufferStorage *> getBufferStorage(BufferUsage usage);
      gl::ErrorOrResult<BufferStorage *> getLatestBufferStorage() const;
  
      gl::ErrorOrResult<BufferStorage *> getConstantBufferRangeStorage(GLintptr offset,
                                                                       GLsizeiptr size);
  
      BufferStorage *allocateStorage(BufferUsage usage);
      void updateSystemMemoryDeallocThreshold();
  
      Renderer11 *mRenderer;
      size_t mSize;
  
      BufferStorage *mMappedStorage;
  
      std::vector<BufferStorage *> mBufferStorages;
  
      // 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*/, ConstantBufferCacheEntry> ConstantBufferCache;
      ConstantBufferCache mConstantBufferRangeStoragesCache;
      size_t mConstantBufferStorageAdditionalSize;
      unsigned int mMaxConstantBufferLruCount;
  
      typedef std::pair<ID3D11Buffer *, ID3D11ShaderResourceView *> BufferSRVPair;
      std::map<DXGI_FORMAT, BufferSRVPair> mBufferResourceViews;
  
      unsigned int mReadUsageCount;
      unsigned int mSystemMemoryDeallocThreshold;
  
      NotificationSet mStaticBufferDirtyCallbacks;
      NotificationSet mDirectBufferDirtyCallbacks;
  };
  
  }  // namespace rx
  
  #endif // LIBANGLE_RENDERER_D3D_D3D11_BUFFER11_H_
  

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