kc3-lang/angle/src/common/Color.h

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• Hash : c54c2f81
  Author :
  Date : 2023-10-12T00:00:00
  

  Sync border color on format updates
  
  When a texture is redefined, its border color should
  be resynced because of format-specific adjustments.
  
  Used memcmp for comparing ColorGeneric structs.
  
  Bug: angleproject:7969
  Change-Id: If0e3e0bc7761c26dab6d00ab24462c789f5b90bb
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4935866
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com>
  

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• src/common/Color.h

• //
  // Copyright 2016 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.
  //
  
  // Color.h : Defines the Color type used throughout the ANGLE libraries
  
  #ifndef COMMON_COLOR_H_
  #define COMMON_COLOR_H_
  
  #include <cstdint>
  #include <cstring>
  
  #include "common/debug.h"
  
  namespace angle
  {
  
  template <typename T>
  struct Color
  {
      Color();
      constexpr Color(T r, T g, T b, T a);
  
      const T *data() const { return &red; }
      T *ptr() { return &red; }
  
      static Color fromData(const T *data) { return Color(data[0], data[1], data[2], data[3]); }
      void writeData(T *data) const
      {
          data[0] = red;
          data[1] = green;
          data[2] = blue;
          data[3] = alpha;
      }
  
      T red;
      T green;
      T blue;
      T alpha;
  };
  
  template <typename T>
  bool operator==(const Color<T> &a, const Color<T> &b);
  
  template <typename T>
  bool operator!=(const Color<T> &a, const Color<T> &b);
  
  typedef Color<float> ColorF;
  typedef Color<int> ColorI;
  typedef Color<unsigned int> ColorUI;
  
  ANGLE_ENABLE_STRUCT_PADDING_WARNINGS
  struct ColorGeneric
  {
      inline ColorGeneric();
      inline ColorGeneric(const ColorF &color);
      inline ColorGeneric(const ColorI &color);
      inline ColorGeneric(const ColorUI &color);
  
      enum class Type : uint32_t
      {
          Float = 0,
          Int   = 1,
          UInt  = 2
      };
  
      union
      {
          ColorF colorF;
          ColorI colorI;
          ColorUI colorUI;
      };
  
      Type type;
  };
  ANGLE_DISABLE_STRUCT_PADDING_WARNINGS
  
  inline bool operator==(const ColorGeneric &a, const ColorGeneric &b);
  
  inline bool operator!=(const ColorGeneric &a, const ColorGeneric &b);
  
  struct DepthStencil
  {
      DepthStencil() : depth(0), stencil(0) {}
  
      // Double is needed to represent the 32-bit integer range of GL_DEPTH_COMPONENT32.
      double depth;
      uint32_t stencil;
  };
  }  // namespace angle
  
  // TODO: Move this fully into the angle namespace
  namespace gl
  {
  
  template <typename T>
  using Color        = angle::Color<T>;
  using ColorF       = angle::ColorF;
  using ColorI       = angle::ColorI;
  using ColorUI      = angle::ColorUI;
  using ColorGeneric = angle::ColorGeneric;
  
  }  // namespace gl
  
  #include "Color.inc"
  
  #endif  // COMMON_COLOR_H_
  

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