kc3-lang/angle/src/libEGL/Config.h

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• Author : Jamie Madill
  Date : 2014-08-01 10:04:09
  Hash : 7bf0c867
  Message : Fix GN build for libEGL. Our build in GN differed slightly from our gyp build, causing the linker to complain about inconsistent linkage. Also remove some stray definitions of EGLAPI from our headers. Change-Id: I5d3a09ccb0cec528ead33944ce0996cceed32d86 Reviewed-on: https://chromium-review.googlesource.com/210821 Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>

• src/libEGL/Config.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.
  //
  
  // Config.h: Defines the egl::Config class, describing the format, type
  // and size for an egl::Surface. Implements EGLConfig and related functionality.
  // [EGL 1.4] section 3.4 page 15.
  
  #ifndef INCLUDE_CONFIG_H_
  #define INCLUDE_CONFIG_H_
  
  #include <EGL/egl.h>
  
  #include <set>
  
  #include "libGLESv2/renderer/Renderer.h"
  #include "common/angleutils.h"
  
  namespace egl
  {
  class Display;
  
  class Config
  {
    public:
      Config(rx::ConfigDesc desc, EGLint minSwapInterval, EGLint maxSwapInterval, EGLint texWidth, EGLint texHeight);
  
      EGLConfig getHandle() const;
  
      const GLenum mRenderTargetFormat;
      const GLenum mDepthStencilFormat;
      const GLint mMultiSample;
  
      EGLint mBufferSize;              // Depth of the color buffer
      EGLint mRedSize;                 // Bits of Red in the color buffer
      EGLint mGreenSize;               // Bits of Green in the color buffer
      EGLint mBlueSize;                // Bits of Blue in the color buffer
      EGLint mLuminanceSize;           // Bits of Luminance in the color buffer
      EGLint mAlphaSize;               // Bits of Alpha in the color buffer
      EGLint mAlphaMaskSize;           // Bits of Alpha Mask in the mask buffer
      EGLBoolean mBindToTextureRGB;    // True if bindable to RGB textures.
      EGLBoolean mBindToTextureRGBA;   // True if bindable to RGBA textures.
      EGLenum mColorBufferType;        // Color buffer type
      EGLenum mConfigCaveat;           // Any caveats for the configuration
      EGLint mConfigID;                // Unique EGLConfig identifier
      EGLint mConformant;              // Whether contexts created with this config are conformant
      EGLint mDepthSize;               // Bits of Z in the depth buffer
      EGLint mLevel;                   // Frame buffer level
      EGLBoolean mMatchNativePixmap;   // Match the native pixmap format
      EGLint mMaxPBufferWidth;         // Maximum width of pbuffer
      EGLint mMaxPBufferHeight;        // Maximum height of pbuffer
      EGLint mMaxPBufferPixels;        // Maximum size of pbuffer
      EGLint mMaxSwapInterval;         // Maximum swap interval
      EGLint mMinSwapInterval;         // Minimum swap interval
      EGLBoolean mNativeRenderable;    // EGL_TRUE if native rendering APIs can render to surface
      EGLint mNativeVisualID;          // Handle of corresponding native visual
      EGLint mNativeVisualType;        // Native visual type of the associated visual
      EGLint mRenderableType;          // Which client rendering APIs are supported.
      EGLint mSampleBuffers;           // Number of multisample buffers
      EGLint mSamples;                 // Number of samples per pixel
      EGLint mStencilSize;             // Bits of Stencil in the stencil buffer
      EGLint mSurfaceType;             // Which types of EGL surfaces are supported.
      EGLenum mTransparentType;        // Type of transparency supported
      EGLint mTransparentRedValue;     // Transparent red value
      EGLint mTransparentGreenValue;   // Transparent green value
      EGLint mTransparentBlueValue;    // Transparent blue value
  };
  
  // Function object used by STL sorting routines for ordering Configs according to [EGL] section 3.4.1 page 24.
  class SortConfig
  {
    public:
      explicit SortConfig(const EGLint *attribList);
  
      bool operator()(const Config *x, const Config *y) const;
      bool operator()(const Config &x, const Config &y) const;
  
    private:
      void scanForWantedComponents(const EGLint *attribList);
      EGLint wantedComponentsSize(const Config &config) const;
  
      bool mWantRed;
      bool mWantGreen;
      bool mWantBlue;
      bool mWantAlpha;
      bool mWantLuminance;
  };
  
  class ConfigSet
  {
      friend Display;
  
    public:
      ConfigSet();
  
      void add(rx::ConfigDesc desc, EGLint minSwapInterval, EGLint maxSwapInterval, EGLint texWidth, EGLint texHeight);
      size_t size() const;
      bool getConfigs(EGLConfig *configs, const EGLint *attribList, EGLint configSize, EGLint *numConfig);
      const egl::Config *get(EGLConfig configHandle);
  
    private:
      DISALLOW_COPY_AND_ASSIGN(ConfigSet);
  
      typedef std::set<Config, SortConfig> Set;
      typedef Set::iterator Iterator;
      Set mSet;
  
      static const EGLint mSortAttribs[];
  };
  }
  
  #endif   // INCLUDE_CONFIG_H_