michael@0: //
michael@0: // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: // Config.h: Defines the egl::Config class, describing the format, type
michael@0: // and size for an egl::Surface. Implements EGLConfig and related functionality.
michael@0: // [EGL 1.4] section 3.4 page 15.
michael@0: 
michael@0: #ifndef INCLUDE_CONFIG_H_
michael@0: #define INCLUDE_CONFIG_H_
michael@0: 
michael@0: #define EGLAPI
michael@0: #include <EGL/egl.h>
michael@0: 
michael@0: #include <set>
michael@0: 
michael@0: #include "libGLESv2/renderer/Renderer.h"
michael@0: #include "common/angleutils.h"
michael@0: 
michael@0: namespace egl
michael@0: {
michael@0: class Display;
michael@0: 
michael@0: class Config
michael@0: {
michael@0:   public:
michael@0:     Config(rx::ConfigDesc desc, EGLint minSwapInterval, EGLint maxSwapInterval, EGLint texWidth, EGLint texHeight);
michael@0: 
michael@0:     EGLConfig getHandle() const;
michael@0: 
michael@0:     const GLenum mRenderTargetFormat;
michael@0:     const GLenum mDepthStencilFormat;
michael@0:     const GLint mMultiSample;
michael@0: 
michael@0:     EGLint mBufferSize;              // Depth of the color buffer
michael@0:     EGLint mRedSize;                 // Bits of Red in the color buffer
michael@0:     EGLint mGreenSize;               // Bits of Green in the color buffer
michael@0:     EGLint mBlueSize;                // Bits of Blue in the color buffer
michael@0:     EGLint mLuminanceSize;           // Bits of Luminance in the color buffer
michael@0:     EGLint mAlphaSize;               // Bits of Alpha in the color buffer
michael@0:     EGLint mAlphaMaskSize;           // Bits of Alpha Mask in the mask buffer
michael@0:     EGLBoolean mBindToTextureRGB;    // True if bindable to RGB textures.
michael@0:     EGLBoolean mBindToTextureRGBA;   // True if bindable to RGBA textures.
michael@0:     EGLenum mColorBufferType;        // Color buffer type
michael@0:     EGLenum mConfigCaveat;           // Any caveats for the configuration
michael@0:     EGLint mConfigID;                // Unique EGLConfig identifier
michael@0:     EGLint mConformant;              // Whether contexts created with this config are conformant
michael@0:     EGLint mDepthSize;               // Bits of Z in the depth buffer
michael@0:     EGLint mLevel;                   // Frame buffer level
michael@0:     EGLBoolean mMatchNativePixmap;   // Match the native pixmap format
michael@0:     EGLint mMaxPBufferWidth;         // Maximum width of pbuffer
michael@0:     EGLint mMaxPBufferHeight;        // Maximum height of pbuffer
michael@0:     EGLint mMaxPBufferPixels;        // Maximum size of pbuffer
michael@0:     EGLint mMaxSwapInterval;         // Maximum swap interval
michael@0:     EGLint mMinSwapInterval;         // Minimum swap interval
michael@0:     EGLBoolean mNativeRenderable;    // EGL_TRUE if native rendering APIs can render to surface
michael@0:     EGLint mNativeVisualID;          // Handle of corresponding native visual
michael@0:     EGLint mNativeVisualType;        // Native visual type of the associated visual
michael@0:     EGLint mRenderableType;          // Which client rendering APIs are supported.
michael@0:     EGLint mSampleBuffers;           // Number of multisample buffers
michael@0:     EGLint mSamples;                 // Number of samples per pixel
michael@0:     EGLint mStencilSize;             // Bits of Stencil in the stencil buffer
michael@0:     EGLint mSurfaceType;             // Which types of EGL surfaces are supported.
michael@0:     EGLenum mTransparentType;        // Type of transparency supported
michael@0:     EGLint mTransparentRedValue;     // Transparent red value
michael@0:     EGLint mTransparentGreenValue;   // Transparent green value
michael@0:     EGLint mTransparentBlueValue;    // Transparent blue value
michael@0: };
michael@0: 
michael@0: // Function object used by STL sorting routines for ordering Configs according to [EGL] section 3.4.1 page 24.
michael@0: class SortConfig
michael@0: {
michael@0:   public:
michael@0:     explicit SortConfig(const EGLint *attribList);
michael@0: 
michael@0:     bool operator()(const Config *x, const Config *y) const;
michael@0:     bool operator()(const Config &x, const Config &y) const;
michael@0: 
michael@0:   private:
michael@0:     void scanForWantedComponents(const EGLint *attribList);
michael@0:     EGLint wantedComponentsSize(const Config &config) const;
michael@0: 
michael@0:     bool mWantRed;
michael@0:     bool mWantGreen;
michael@0:     bool mWantBlue;
michael@0:     bool mWantAlpha;
michael@0:     bool mWantLuminance;
michael@0: };
michael@0: 
michael@0: class ConfigSet
michael@0: {
michael@0:     friend Display;
michael@0: 
michael@0:   public:
michael@0:     ConfigSet();
michael@0: 
michael@0:     void add(rx::ConfigDesc desc, EGLint minSwapInterval, EGLint maxSwapInterval, EGLint texWidth, EGLint texHeight);
michael@0:     size_t size() const;
michael@0:     bool getConfigs(EGLConfig *configs, const EGLint *attribList, EGLint configSize, EGLint *numConfig);
michael@0:     const egl::Config *get(EGLConfig configHandle);
michael@0: 
michael@0:   private:
michael@0:     DISALLOW_COPY_AND_ASSIGN(ConfigSet);
michael@0: 
michael@0:     typedef std::set<Config, SortConfig> Set;
michael@0:     typedef Set::iterator Iterator;
michael@0:     Set mSet;
michael@0: 
michael@0:     static const EGLint mSortAttribs[];
michael@0: };
michael@0: }
michael@0: 
michael@0: #endif   // INCLUDE_CONFIG_H_