kc3-lang/angle/src/libGLESv2/geometry/VertexDataManager.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/VertexDataManager.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/VertexDataManager.h: Defines the VertexDataManager, a class that
  // runs the Buffer translation process.
  
  #ifndef LIBGLESV2_GEOMETRY_VERTEXDATAMANAGER_H_
  #define LIBGLESV2_GEOMETRY_VERTEXDATAMANAGER_H_
  
  #include <bitset>
  #include <cstddef>
  
  #define GL_APICALL
  #include <GLES2/gl2.h>
  
  #include "libGLESv2/Context.h"
  
  namespace gl
  {
  
  class Buffer;
  class BufferBackEnd;
  class TranslatedVertexBuffer;
  struct TranslatedAttribute;
  struct FormatConverter;
  struct TranslatedIndexData;
  
  class VertexDataManager
  {
    public:
      VertexDataManager(Context *context, BufferBackEnd *backend);
      ~VertexDataManager();
  
      void dirtyCurrentValues() { mDirtyCurrentValues = true; }
  
      GLenum preRenderValidate(GLint start,
                               GLsizei count,
                               TranslatedAttribute *outAttribs);
  
    private:
      std::bitset<MAX_VERTEX_ATTRIBS> getActiveAttribs() const;
  
      void processNonArrayAttributes(const AttributeState *attribs, const std::bitset<MAX_VERTEX_ATTRIBS> &activeAttribs, TranslatedAttribute *translated, std::size_t count);
  
      std::size_t typeSize(GLenum type) const;
      std::size_t interpretGlStride(const AttributeState &attrib) const;
  
      std::size_t roundUp(std::size_t x, std::size_t multiple) const;
      std::size_t spaceRequired(const AttributeState &attrib, std::size_t maxVertex) const;
  
      Context *mContext;
      BufferBackEnd *mBackend;
  
      TranslatedVertexBuffer *mStreamBuffer;
  
      bool mDirtyCurrentValues;
      std::size_t mCurrentValueOffset;            // Offset within mCurrentValueBuffer that the current attribute values were last loaded at.
      TranslatedVertexBuffer *mCurrentValueBuffer;
  };
  
  }
  
  #endif   // LIBGLESV2_GEOMETRY_VERTEXDATAMANAGER_H_