kc3-lang/angle/src/libGLESv2/renderer/d3d/IndexDataManager.h

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• Hash : c9e69b19
  Author :
  Date : 2014-09-08T16:06:25
  

  Updated the index buffer classes to use Error objects.
  
  BUG=angle:520
  
  Change-Id: Ifc249058a3ed3ffffe163a9e3ec21d6fc8c75bd0
  Reviewed-on: https://chromium-review.googlesource.com/217101
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libGLESv2/renderer/d3d/IndexDataManager.h

• //
  // Copyright (c) 2002-2014 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.
  //
  
  // IndexDataManager.h: Defines the IndexDataManager, a class that
  // runs the Buffer translation process for index buffers.
  
  #ifndef LIBGLESV2_INDEXDATAMANAGER_H_
  #define LIBGLESV2_INDEXDATAMANAGER_H_
  
  #include "common/angleutils.h"
  #include "common/mathutil.h"
  #include "libGLESv2/Error.h"
  
  #include <GLES2/gl2.h>
  
  namespace
  {
      enum { INITIAL_INDEX_BUFFER_SIZE = 4096 * sizeof(GLuint) };
  }
  
  namespace gl
  {
  class Buffer;
  }
  
  namespace rx
  {
  class IndexBufferInterface;
  class StaticIndexBufferInterface;
  class StreamingIndexBufferInterface;
  class IndexBuffer;
  class BufferD3D;
  class Renderer;
  
  struct TranslatedIndexData
  {
      RangeUI indexRange;
      unsigned int startIndex;
      unsigned int startOffset;   // In bytes
  
      IndexBuffer *indexBuffer;
      BufferD3D *storage;
      GLenum indexType;
      unsigned int serial;
  };
  
  class IndexDataManager
  {
    public:
      explicit IndexDataManager(Renderer *renderer);
      virtual ~IndexDataManager();
  
      gl::Error prepareIndexData(GLenum type, GLsizei count, gl::Buffer *arrayElementBuffer, const GLvoid *indices, TranslatedIndexData *translated);
  
    private:
       gl::Error getStreamingIndexBuffer(GLenum destinationIndexType, IndexBufferInterface **outBuffer);
  
      DISALLOW_COPY_AND_ASSIGN(IndexDataManager);
  
      Renderer *const mRenderer;
  
      StreamingIndexBufferInterface *mStreamingBufferShort;
      StreamingIndexBufferInterface *mStreamingBufferInt;
  };
  
  }
  
  #endif   // LIBGLESV2_INDEXDATAMANAGER_H_
  

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