kc3-lang/angle/src/libGLESv2/renderer/VertexBuffer11.h

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• Hash : a36ead4a
  Author :
  Date : 2013-08-02T11:54:08
  

  Updated VertexBuffer's getSpaceRequired and storeVertexAttributes methods to return bools and fixed some validation of parameters to prevent under and overflows.
  
  TRAC #23643
  
  Signed-off-by: Nicolas Capens
  Signed-off-by: Shannon Woods
  Author: Geoff Lang
  

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• src/libGLESv2/renderer/VertexBuffer11.h

• //
  // Copyright (c) 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.
  //
  
  // VertexBuffer11.h: Defines the D3D11 VertexBuffer implementation.
  
  #ifndef LIBGLESV2_RENDERER_VERTEXBUFFER11_H_
  #define LIBGLESV2_RENDERER_VERTEXBUFFER11_H_
  
  #include "libGLESv2/renderer/VertexBuffer.h"
  
  namespace rx
  {
  class Renderer11;
  
  class VertexBuffer11 : public VertexBuffer
  {
    public:
      explicit VertexBuffer11(rx::Renderer11 *const renderer);
      virtual ~VertexBuffer11();
  
      virtual bool initialize(unsigned int size, bool dynamicUsage);
  
      static VertexBuffer11 *makeVertexBuffer11(VertexBuffer *vetexBuffer);
  
      virtual bool storeVertexAttributes(const gl::VertexAttribute &attrib, const gl::VertexAttribCurrentValueData &currentValue,
                                         GLint start, GLsizei count, GLsizei instances, unsigned int offset);
  
      virtual bool getSpaceRequired(const gl::VertexAttribute &attrib, GLsizei count, GLsizei instances,
                                    unsigned int *outSpaceRequired) const;
  
      virtual bool requiresConversion(const gl::VertexAttribute &attrib) const;
      virtual bool requiresConversion(const gl::VertexAttribCurrentValueData &currentValue) const;
  
      virtual unsigned int getBufferSize() const;
      virtual bool setBufferSize(unsigned int size);
      virtual bool discard();
  
      static DXGI_FORMAT getAttributeDXGIFormat(const gl::VertexAttribute &attrib);
      static DXGI_FORMAT getCurrentValueDXGIFormat(GLenum currentValueType);
  
      ID3D11Buffer *getBuffer() const;
  
    private:
      DISALLOW_COPY_AND_ASSIGN(VertexBuffer11);
  
      rx::Renderer11 *const mRenderer;
  
      ID3D11Buffer *mBuffer;
      unsigned int mBufferSize;
      bool mDynamicUsage;
  
      typedef void (*VertexConversionFunction)(const void *, unsigned int, unsigned int, void *);
      struct VertexConverter
      {
          VertexConversionFunction conversionFunc;
          bool identity;
          DXGI_FORMAT dxgiFormat;
          unsigned int outputElementSize;
      };
  
      static const unsigned int  NUM_GL_FLOAT_VERTEX_ATTRIB_TYPES = 11;
      static const VertexConverter mFloatVertexTranslations[NUM_GL_FLOAT_VERTEX_ATTRIB_TYPES][2][4]; // [GL types as enumerated by typeIndex()][normalized][size - 1]
  
      static const unsigned int NUM_GL_INTEGER_VERTEX_ATTRIB_TYPES = 8;
      static const VertexConverter mIntegerVertexTranslations[NUM_GL_INTEGER_VERTEX_ATTRIB_TYPES][4]; // [GL types as enumerated by typeIndex()][size - 1]
  
      static const VertexConverter &getVertexConversion(const gl::VertexAttribute &attribute);
      static const VertexConverter &getVertexConversion(GLenum type, bool pureInteger, bool normalized, int size);
  };
  
  }
  
  #endif // LIBGLESV2_RENDERER_VERTEXBUFFER11_H_
  

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