kc3-lang/angle/src/libGLESv2/renderer/BufferStorage11.h

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• Hash : 29233b29
  Author :
  Date : 2013-05-30T00:04:57
  

  Call BufferStorage::markUsage when we retrieve a buffer pointer for rendering, instead of when we prepare data.
  
  The automatic call eliminates function calls from other points in the library.
  
  TRAC #22852
  
  Signed-off-by: Geoff Lang
  Signed-off-by: Nicolas Capens
  Author: Jamie Madill
  
  git-svn-id: https://angleproject.googlecode.com/svn/branches/es3proto@2288 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• src/libGLESv2/renderer/BufferStorage11.h

• //
  // Copyright (c) 2013 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.
  //
  
  // BufferStorage11.h Defines the BufferStorage11 class.
  
  #ifndef LIBGLESV2_RENDERER_BUFFERSTORAGE11_H_
  #define LIBGLESV2_RENDERER_BUFFERSTORAGE11_H_
  
  #include "libGLESv2/renderer/BufferStorage.h"
  
  namespace rx
  {
  class Renderer11;
  class DirectBufferStorage11;
  
  class BufferStorage11 : public BufferStorage
  {
    public:
      explicit BufferStorage11(Renderer11 *renderer);
      virtual ~BufferStorage11();
  
      static BufferStorage11 *makeBufferStorage11(BufferStorage *bufferStorage);
  
      virtual void *getData();
      virtual void setData(const void* data, unsigned int size, unsigned int offset);
      virtual void copyData(BufferStorage* sourceStorage, unsigned int size,
                            unsigned int sourceOffset, unsigned int destOffset);
      virtual void clear();
      virtual unsigned int getSize() const;
      virtual bool supportsDirectBinding() const;
  
      ID3D11Buffer *getBuffer(GLenum usage);
  
    private:
      Renderer11 *mRenderer;
  
      ID3D11Buffer *mStagingBuffer;
      unsigned int mStagingBufferSize;
  
      typedef std::vector<DirectBufferStorage11*> DirectBufferList;
      DirectBufferList mDirectBuffers;
      unsigned int mSize;
  
      void *mResolvedData;
      unsigned int mResolvedDataSize;
      bool mResolvedDataValid;
  
      unsigned int mReadUsageCount;
      unsigned int mWriteUsageCount;
  
      void markBufferUsage();
  };
  
  // Each instance of BufferStorageD3DBuffer11 is specialized for a class of D3D binding points
  // - vertex/index buffers
  // - uniform buffers
  // - (possibly in the future, transform feedback buffers)
  class DirectBufferStorage11
  {
    public:
      DirectBufferStorage11(Renderer11 *renderer, const GLenum target);
      ~DirectBufferStorage11();
  
      bool hasTarget(const GLenum target) const;
      bool updateFromStagingBuffer(ID3D11Buffer *stagingBuffer, const size_t size, const size_t offset);
  
      ID3D11Buffer *getD3DBuffer() { return mDirectBuffer; }
      bool isDirty() const { return mDirty; }
      void markDirty() { mDirty = true; }
  
    private:
      Renderer11 *mRenderer;
      const GLenum mTarget;
      ID3D11Buffer *mDirectBuffer;
      size_t mBufferSize;
      bool mDirty;
  
      void fillBufferDesc(D3D11_BUFFER_DESC* bufferDesc, unsigned int bufferSize);
  };
  
  }
  
  #endif // LIBGLESV2_RENDERER_BUFFERSTORAGE11_H_
  

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