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

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• Hash : 3edfe034
  Author :
  Date : 2015-09-04T16:38:24
  

  Support primitive restart in RendererGL.
  
  Store index ranges in a new struct that tracks how many real indices were
  seen.  Update index caching to key on primitive restart being enabled and
  update index counting functions to skip primitive restart indicies when
  needed.
  
  Passes dEQP-GLES3.functional.primitive_restart.*
  
  Change-Id: Id1e25a5adcdcd4e998836e8ff6679c64be4c3066
  Reviewed-on: https://chromium-review.googlesource.com/297770
  Tryjob-Request: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/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 LIBANGLE_INDEXDATAMANAGER_H_
  #define LIBANGLE_INDEXDATAMANAGER_H_
  
  #include <GLES2/gl2.h>
  
  #include "common/angleutils.h"
  #include "common/mathutil.h"
  #include "libANGLE/Error.h"
  #include "libANGLE/renderer/d3d/RendererD3D.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 RendererD3D;
  
  struct TranslatedIndexData
  {
      gl::IndexRange indexRange;
      unsigned int startIndex;
      unsigned int startOffset;   // In bytes
  
      IndexBuffer *indexBuffer;
      BufferD3D *storage;
      GLenum indexType;
      unsigned int serial;
  };
  
  struct SourceIndexData
  {
      BufferD3D *srcBuffer;
      const GLvoid *srcIndices;
      unsigned int srcCount;
      GLenum srcIndexType;
      bool srcIndicesChanged;
  };
  
  class IndexDataManager : angle::NonCopyable
  {
    public:
      explicit IndexDataManager(BufferFactoryD3D *factory, RendererClass rendererClass);
      virtual ~IndexDataManager();
  
      gl::Error prepareIndexData(GLenum srcType, GLsizei count, gl::Buffer *glBuffer,
                                 const GLvoid *indices, TranslatedIndexData *translated,
                                 SourceIndexData *sourceData);
  
    private:
      gl::Error streamIndexData(const GLvoid *data, unsigned int count, GLenum srcType,
                                GLenum dstType, TranslatedIndexData *translated);
      gl::Error getStreamingIndexBuffer(GLenum destinationIndexType,
                                        IndexBufferInterface **outBuffer);
  
      BufferFactoryD3D *const mFactory;
      RendererClass mRendererClass;
      StreamingIndexBufferInterface *mStreamingBufferShort;
      StreamingIndexBufferInterface *mStreamingBufferInt;
  };
  
  }
  
  #endif   // LIBANGLE_INDEXDATAMANAGER_H_
  

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