kc3-lang/angle/src/libANGLE/VertexAttribute.h

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• Hash : dd5f27ee
  Author :
  Date : 2017-06-07T10:17:09
  

  Make VertexBinding's member variables private
  
  The patch decorates all members in VertexBinding as private and limits
  access to them only through getters and setters. This makes it easier to
  debug and keep track of any assignments to the class members.
  
  BUG=angleproject:2062
  TEST=angle_end2end_tests
  
  Change-Id: Iddd49063d060f136bc9cf11c313a5af0931d433c
  Reviewed-on: https://chromium-review.googlesource.com/530786
  Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/VertexAttribute.h

• //
  // Copyright (c) 2013 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.
  //
  // Helper structures about Generic Vertex Attribute.
  //
  
  #ifndef LIBANGLE_VERTEXATTRIBUTE_H_
  #define LIBANGLE_VERTEXATTRIBUTE_H_
  
  #include "libANGLE/Buffer.h"
  
  namespace gl
  {
  class VertexArray;
  
  //
  // Implementation of Generic Vertex Attribute Bindings for ES3.1. The members are intentionally made
  // private in order to hide implementation details.
  //
  class VertexBinding final : angle::NonCopyable
  {
    public:
      VertexBinding();
      explicit VertexBinding(VertexBinding &&binding);
      VertexBinding &operator=(VertexBinding &&binding);
  
      GLuint getStride() const { return mStride; }
      void setStride(GLuint strideIn) { mStride = strideIn; }
  
      GLuint getDivisor() const { return mDivisor; }
      void setDivisor(GLuint divisorIn) { mDivisor = divisorIn; }
  
      GLintptr getOffset() const { return mOffset; }
      void setOffset(GLintptr offsetIn) { mOffset = offsetIn; }
  
      const BindingPointer<Buffer> &getBuffer() const { return mBuffer; }
      void setBuffer(Buffer *bufferIn) { mBuffer.set(bufferIn); }
  
    private:
      GLuint mStride;
      GLuint mDivisor;
      GLintptr mOffset;
  
      BindingPointer<Buffer> mBuffer;
  };
  
  //
  // Implementation of Generic Vertex Attributes for ES3.1
  //
  struct VertexAttribute final : private angle::NonCopyable
  {
      explicit VertexAttribute(GLuint bindingIndex);
      explicit VertexAttribute(VertexAttribute &&attrib);
      VertexAttribute &operator=(VertexAttribute &&attrib);
  
      bool enabled;  // For glEnable/DisableVertexAttribArray
      GLenum type;
      GLuint size;
      bool normalized;
      bool pureInteger;
  
      const void *pointer;
      GLintptr relativeOffset;
  
      GLuint vertexAttribArrayStride;  // ONLY for queries of VERTEX_ATTRIB_ARRAY_STRIDE
      GLuint bindingIndex;
  };
  
  size_t ComputeVertexAttributeTypeSize(const VertexAttribute &attrib);
  
  // Warning: you should ensure binding really matches attrib.bindingIndex before using this function.
  size_t ComputeVertexAttributeStride(const VertexAttribute &attrib, const VertexBinding &binding);
  
  // Warning: you should ensure binding really matches attrib.bindingIndex before using this function.
  GLintptr ComputeVertexAttributeOffset(const VertexAttribute &attrib, const VertexBinding &binding);
  
  size_t ComputeVertexBindingElementCount(const VertexBinding &binding,
                                          size_t drawCount,
                                          size_t instanceCount);
  
  GLenum GetVertexAttributeBaseType(const VertexAttribute &attrib);
  
  struct VertexAttribCurrentValueData
  {
      union {
          GLfloat FloatValues[4];
          GLint IntValues[4];
          GLuint UnsignedIntValues[4];
      };
      GLenum Type;
  
      VertexAttribCurrentValueData();
  
      void setFloatValues(const GLfloat floatValues[4]);
      void setIntValues(const GLint intValues[4]);
      void setUnsignedIntValues(const GLuint unsignedIntValues[4]);
  };
  
  bool operator==(const VertexAttribCurrentValueData &a, const VertexAttribCurrentValueData &b);
  bool operator!=(const VertexAttribCurrentValueData &a, const VertexAttribCurrentValueData &b);
  
  }  // namespace gl
  
  #include "VertexAttribute.inl"
  
  #endif  // LIBANGLE_VERTEXATTRIBUTE_H_
  

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