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

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• Hash : 831b1953
  Author :
  Date : 2015-05-05T11:02:27
  

  Move the IndexRangeCache and Range types to the gl namespace.
  
  BUG=angleproject:881
  
  Change-Id: Ib05149facee9fcc7714cb957ca8647b3498a36b6
  Reviewed-on: https://chromium-review.googlesource.com/269254
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Brandon Jones <bajones@chromium.org>
  

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• src/libANGLE/renderer/d3d/IndexBuffer.h

• //
  // Copyright (c) 2002-2012 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.
  //
  
  // IndexBuffer.h: Defines the abstract IndexBuffer class and IndexBufferInterface
  // class with derivations, classes that perform graphics API agnostic index buffer operations.
  
  #ifndef LIBANGLE_RENDERER_D3D_INDEXBUFFER_H_
  #define LIBANGLE_RENDERER_D3D_INDEXBUFFER_H_
  
  #include "common/angleutils.h"
  #include "libANGLE/Error.h"
  
  namespace rx
  {
  class BufferFactoryD3D;
  
  class IndexBuffer : angle::NonCopyable
  {
    public:
      IndexBuffer();
      virtual ~IndexBuffer();
  
      virtual gl::Error initialize(unsigned int bufferSize, GLenum indexType, bool dynamic) = 0;
  
      virtual gl::Error mapBuffer(unsigned int offset, unsigned int size, void** outMappedMemory) = 0;
      virtual gl::Error unmapBuffer() = 0;
  
      virtual gl::Error discard() = 0;
  
      virtual GLenum getIndexType() const = 0;
      virtual unsigned int getBufferSize() const = 0;
      virtual gl::Error setSize(unsigned int bufferSize, GLenum indexType) = 0;
  
      unsigned int getSerial() const;
  
    protected:
      void updateSerial();
  
    private:
      unsigned int mSerial;
      static unsigned int mNextSerial;
  };
  
  class IndexBufferInterface : angle::NonCopyable
  {
    public:
      IndexBufferInterface(BufferFactoryD3D *factory, bool dynamic);
      virtual ~IndexBufferInterface();
  
      virtual gl::Error reserveBufferSpace(unsigned int size, GLenum indexType) = 0;
  
      GLenum getIndexType() const;
      unsigned int getBufferSize() const;
  
      unsigned int getSerial() const;
  
      gl::Error mapBuffer(unsigned int size, void** outMappedMemory, unsigned int *streamOffset);
      gl::Error unmapBuffer();
  
      IndexBuffer *getIndexBuffer() const;
  
    protected:
      unsigned int getWritePosition() const;
      void setWritePosition(unsigned int writePosition);
  
      gl::Error discard();
  
      gl::Error setBufferSize(unsigned int bufferSize, GLenum indexType);
  
    private:
      IndexBuffer *mIndexBuffer;
  
      unsigned int mWritePosition;
      bool mDynamic;
  };
  
  class StreamingIndexBufferInterface : public IndexBufferInterface
  {
    public:
      explicit StreamingIndexBufferInterface(BufferFactoryD3D *factory);
      ~StreamingIndexBufferInterface();
  
      gl::Error reserveBufferSpace(unsigned int size, GLenum indexType) override;
  };
  
  class StaticIndexBufferInterface : public IndexBufferInterface
  {
    public:
      explicit StaticIndexBufferInterface(BufferFactoryD3D *factory);
      ~StaticIndexBufferInterface();
  
      gl::Error reserveBufferSpace(unsigned int size, GLenum indexType) override;
  };
  
  }
  
  #endif // LIBANGLE_RENDERER_D3D_INDEXBUFFER_H_
  

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