kc3-lang/angle/src/libGLESv2/geometry/IndexDataManager.h

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• Author : daniel@transgaming.com
  Date : 2010-05-20 19:18:17
  Hash : 81655a72
  Message : Use instancing for non-array vertex attributes. TRAC #12303 Signed-off-by: Nicolas Capens Signed-off-by: Daniel Koch git-svn-id: https://angleproject.googlecode.com/svn/trunk@314 736b8ea6-26fd-11df-bfd4-992fa37f6226

• src/libGLESv2/geometry/IndexDataManager.h

• //
  // Copyright (c) 2002-2010 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.
  //
  
  // geometry/IndexDataManager.h: Defines the IndexDataManager, a class that
  // runs the Buffer translation process for index buffers.
  
  #ifndef LIBGLESV2_GEOMETRY_INDEXDATAMANAGER_H_
  #define LIBGLESV2_GEOMETRY_INDEXDATAMANAGER_H_
  
  #include <bitset>
  #include <cstddef>
  
  #define GL_APICALL
  #include <GLES2/gl2.h>
  
  #include "libGLESv2/Context.h"
  
  namespace gl
  {
  
  class Buffer;
  class BufferBackEnd;
  class TranslatedIndexBuffer;
  struct FormatConverter;
  
  struct TranslatedIndexData
  {
      GLuint minIndex;
      GLuint maxIndex;
      GLuint count;
      GLuint indexSize;
  
      TranslatedIndexBuffer *buffer;
      GLsizei offset;
  };
  
  class IndexDataManager
  {
    public:
      IndexDataManager(Context *context, BufferBackEnd *backend);
      ~IndexDataManager();
  
      GLenum preRenderValidate(GLenum mode, GLenum type, GLsizei count, Buffer *arrayElementBuffer, const void *indices, TranslatedIndexData *translated);
      GLenum preRenderValidateUnindexed(GLenum mode, GLsizei count, TranslatedIndexData *indexInfo);
  
    private:
      std::size_t IndexDataManager::typeSize(GLenum type) const;
      std::size_t IndexDataManager::indexSize(GLenum type) const;
      std::size_t spaceRequired(GLenum type, GLsizei count) const;
      TranslatedIndexBuffer *prepareIndexBuffer(GLenum type, std::size_t requiredSpace);
  
      Context *mContext;
      BufferBackEnd *mBackend;
  
      bool mIntIndicesSupported;
  
      TranslatedIndexBuffer *mStreamBufferShort;
      TranslatedIndexBuffer *mStreamBufferInt;
  
      TranslatedIndexBuffer *mCountingBuffer;
      GLsizei mCountingBufferSize;
  
      TranslatedIndexBuffer *mLineLoopBuffer;
  };
  
  }
  
  #endif   // LIBGLESV2_GEOMETRY_INDEXDATAMANAGER_H_