kc3-lang/angle/src/libANGLE/renderer/d3d/BufferD3D.h

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• Hash : 8f775607
  Author :
  Date : 2016-11-03T16:45:34
  

  Introduce a gl::BufferState class.
  
  This state can share vital pieces of information with the impl.
  The most elementary state is the buffer size, which then the
  impl doesn't need to replicate.
  
  BUG=angleproject:1579
  
  Change-Id: I341393c64a6e49de65c1d53b1bad2fa143209862
  Reviewed-on: https://chromium-review.googlesource.com/406644
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/d3d/BufferD3D.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.
  //
  
  // BufferD3D.h: Defines the rx::BufferD3D class, an implementation of BufferImpl.
  
  #ifndef LIBANGLE_RENDERER_D3D_BUFFERD3D_H_
  #define LIBANGLE_RENDERER_D3D_BUFFERD3D_H_
  
  #include "libANGLE/angletypes.h"
  #include "libANGLE/renderer/BufferImpl.h"
  
  #include <stdint.h>
  #include <vector>
  
  namespace rx
  {
  class BufferFactoryD3D;
  class StaticIndexBufferInterface;
  class StaticVertexBufferInterface;
  
  enum class D3DBufferUsage
  {
      STATIC,
      DYNAMIC,
  };
  
  class BufferD3D : public BufferImpl
  {
    public:
      BufferD3D(const gl::BufferState &state, BufferFactoryD3D *factory);
      virtual ~BufferD3D();
  
      unsigned int getSerial() const { return mSerial; }
  
      virtual size_t getSize() const = 0;
      virtual bool supportsDirectBinding() const = 0;
      virtual gl::Error markTransformFeedbackUsage() = 0;
      virtual gl::Error getData(const uint8_t **outData) = 0;
  
      StaticVertexBufferInterface *getStaticVertexBuffer(const gl::VertexAttribute &attribute);
      StaticIndexBufferInterface *getStaticIndexBuffer();
  
      virtual void initializeStaticData();
      virtual void invalidateStaticData();
  
      void promoteStaticUsage(int dataSize);
  
      gl::Error getIndexRange(GLenum type,
                              size_t offset,
                              size_t count,
                              bool primitiveRestartEnabled,
                              gl::IndexRange *outRange) override;
  
      BufferFactoryD3D *getFactory() const { return mFactory; }
      D3DBufferUsage getUsage() const { return mUsage; }
  
    protected:
      void updateSerial();
      void updateD3DBufferUsage(GLenum usage);
      void emptyStaticBufferCache();
  
      BufferFactoryD3D *mFactory;
      unsigned int mSerial;
      static unsigned int mNextSerial;
  
      std::vector<std::unique_ptr<StaticVertexBufferInterface>> mStaticVertexBuffers;
      StaticIndexBufferInterface *mStaticIndexBuffer;
      unsigned int mStaticBufferCacheTotalSize;
      unsigned int mStaticVertexBufferOutOfDate;
      unsigned int mUnmodifiedDataUse;
      D3DBufferUsage mUsage;
  };
  
  }
  
  #endif // LIBANGLE_RENDERER_D3D_BUFFERD3D_H_
  

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