1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // Config.h: Defines the egl::Config class, describing the format, type 16 // and size for an egl::Surface. Implements EGLConfig and related functionality. 17 // [EGL 1.4] section 3.4 page 15. 18 19 #ifndef INCLUDE_CONFIG_H_ 20 #define INCLUDE_CONFIG_H_ 21 22 #include "Renderer/Surface.hpp" 23 24 #include <EGL/egl.h> 25 26 #include <set> 27 28 namespace egl 29 { 30 class Display; 31 32 class Config 33 { 34 public: 35 Config(sw::Format displayFormat, EGLint minSwapInterval, EGLint maxSwapInterval, sw::Format renderTargetFormat, sw::Format depthStencilFormat, EGLint multiSample, bool conformant); 36 37 EGLConfig getHandle() const; 38 39 const sw::Format mRenderTargetFormat; 40 const sw::Format mDepthStencilFormat; 41 const EGLint mMultiSample; 42 43 EGLint mBufferSize; // Depth of the color buffer 44 EGLint mRedSize; // Bits of Red in the color buffer 45 EGLint mGreenSize; // Bits of Green in the color buffer 46 EGLint mBlueSize; // Bits of Blue in the color buffer 47 EGLint mLuminanceSize; // Bits of Luminance in the color buffer 48 EGLint mAlphaSize; // Bits of Alpha in the color buffer 49 EGLint mAlphaMaskSize; // Bits of Alpha Mask in the mask buffer 50 EGLBoolean mBindToTextureRGB; // True if bindable to RGB textures. 51 EGLBoolean mBindToTextureRGBA; // True if bindable to RGBA textures. 52 EGLenum mColorBufferType; // Color buffer type 53 EGLenum mConfigCaveat; // Any caveats for the configuration 54 EGLint mConfigID; // Unique EGLConfig identifier 55 EGLint mConformant; // Whether contexts created with this config are conformant 56 EGLint mDepthSize; // Bits of Z in the depth buffer 57 EGLint mLevel; // Frame buffer level 58 EGLBoolean mMatchNativePixmap; // Match the native pixmap format 59 EGLint mMaxPBufferWidth; // Maximum width of pbuffer 60 EGLint mMaxPBufferHeight; // Maximum height of pbuffer 61 EGLint mMaxPBufferPixels; // Maximum size of pbuffer 62 EGLint mMaxSwapInterval; // Maximum swap interval 63 EGLint mMinSwapInterval; // Minimum swap interval 64 EGLBoolean mNativeRenderable; // EGL_TRUE if native rendering APIs can render to surface 65 EGLint mNativeVisualID; // Handle of corresponding native visual 66 EGLint mNativeVisualType; // Native visual type of the associated visual 67 EGLint mRenderableType; // Which client rendering APIs are supported. 68 EGLint mSampleBuffers; // Number of multisample buffers 69 EGLint mSamples; // Number of samples per pixel 70 EGLint mStencilSize; // Bits of Stencil in the stencil buffer 71 EGLint mSurfaceType; // Which types of EGL surfaces are supported. 72 EGLenum mTransparentType; // Type of transparency supported 73 EGLint mTransparentRedValue; // Transparent red value 74 EGLint mTransparentGreenValue; // Transparent green value 75 EGLint mTransparentBlueValue; // Transparent blue value 76 77 EGLBoolean mRecordableAndroid; // EGL_ANDROID_recordable 78 EGLBoolean mFramebufferTargetAndroid; // EGL_ANDROID_framebuffer_target 79 }; 80 81 struct CompareConfig 82 { 83 bool operator()(const Config &x, const Config &y) const; 84 }; 85 86 class ConfigSet 87 { 88 friend class Display; 89 90 public: 91 ConfigSet(); 92 93 void add(sw::Format displayFormat, EGLint minSwapInterval, EGLint maxSwapInterval, sw::Format renderTargetFormat, sw::Format depthStencilFormat, EGLint multiSample); 94 size_t size() const; 95 bool getConfigs(EGLConfig *configs, const EGLint *attribList, EGLint configSize, EGLint *numConfig); 96 const egl::Config *get(EGLConfig configHandle); 97 98 private: 99 typedef std::set<Config, CompareConfig> Set; 100 typedef Set::iterator Iterator; 101 Set mSet; 102 }; 103 } 104 105 #endif // INCLUDE_CONFIG_H_ 106