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

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• Author : Geoff Lang
  Date : 2015-06-05 10:59:04
  Hash : d5451f11
  Message : Inline comparison operators of several small ANGLE structs. Improves draw call overhead of RendererGL. DrawCallPerf_gl: Before: 129779 score After: 136973 score Improvement: 5.543% No noticeable difference in DLL size or draw call perf of the D3D renderers. BUG=angleproject:959 Change-Id: Id54d49e9e2cfb69431ee26d632c58fee2c42b82c Reviewed-on: https://chromium-review.googlesource.com/275408 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

• src/libANGLE/VertexAttribute.inl

• //
  // Copyright (c) 2015 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.
  //
  // VertexAttribute.inl: Inline vertex attribute methods
  //
  
  namespace gl
  {
  
  inline bool operator==(const VertexAttribute &a, const VertexAttribute &b)
  {
      return a.enabled == b.enabled &&
             a.type == b.type &&
             a.size == b.size &&
             a.normalized == b.normalized &&
             a.pureInteger == b.pureInteger &&
             a.stride == b.stride &&
             a.pointer == b.pointer &&
             a.buffer.get() == b.buffer.get() &&
             a.divisor == b.divisor;
  }
  
  inline bool operator!=(const VertexAttribute &a, const VertexAttribute &b)
  {
      return !(a == b);
  }
  
  template <typename T>
  T QuerySingleVertexAttributeParameter(const VertexAttribute& attrib, GLenum pname)
  {
    switch (pname)
    {
      case GL_VERTEX_ATTRIB_ARRAY_ENABLED:
        return static_cast<T>(attrib.enabled ? GL_TRUE : GL_FALSE);
      case GL_VERTEX_ATTRIB_ARRAY_SIZE:
        return static_cast<T>(attrib.size);
      case GL_VERTEX_ATTRIB_ARRAY_STRIDE:
        return static_cast<T>(attrib.stride);
      case GL_VERTEX_ATTRIB_ARRAY_TYPE:
        return static_cast<T>(attrib.type);
      case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED:
        return static_cast<T>(attrib.normalized ? GL_TRUE : GL_FALSE);
      case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING:
        return static_cast<T>(attrib.buffer.id());
      case GL_VERTEX_ATTRIB_ARRAY_DIVISOR:
        return static_cast<T>(attrib.divisor);
      case GL_VERTEX_ATTRIB_ARRAY_INTEGER:
        return static_cast<T>(attrib.pureInteger ? GL_TRUE : GL_FALSE);
      default:
        UNREACHABLE();
        return static_cast<T>(0);
    }
  }
  
  inline VertexAttribCurrentValueData::VertexAttribCurrentValueData()
      : Type(GL_FLOAT)
  {
      FloatValues[0] = 0.0f;
      FloatValues[1] = 0.0f;
      FloatValues[2] = 0.0f;
      FloatValues[3] = 1.0f;
  }
  
  inline void VertexAttribCurrentValueData::setFloatValues(const GLfloat floatValues[4])
  {
      for (unsigned int valueIndex = 0; valueIndex < 4; valueIndex++)
      {
          FloatValues[valueIndex] = floatValues[valueIndex];
      }
      Type = GL_FLOAT;
  }
  
  inline void VertexAttribCurrentValueData::setIntValues(const GLint intValues[4])
  {
      for (unsigned int valueIndex = 0; valueIndex < 4; valueIndex++)
      {
          IntValues[valueIndex] = intValues[valueIndex];
      }
      Type = GL_INT;
  }
  
  inline void VertexAttribCurrentValueData::setUnsignedIntValues(const GLuint unsignedIntValues[4])
  {
      for (unsigned int valueIndex = 0; valueIndex < 4; valueIndex++)
      {
          UnsignedIntValues[valueIndex] = unsignedIntValues[valueIndex];
      }
      Type = GL_UNSIGNED_INT;
  }
  
  inline bool operator==(const VertexAttribCurrentValueData &a, const VertexAttribCurrentValueData &b)
  {
      return (a.Type == b.Type && memcmp(a.FloatValues, b.FloatValues, sizeof(float) * 4) == 0);
  }
  
  inline bool operator!=(const VertexAttribCurrentValueData &a, const VertexAttribCurrentValueData &b)
  {
      return !(a == b);
  }
  
  }