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 // Display.h: Defines the egl::Display class, representing the abstract 16 // display on which graphics are drawn. Implements EGLDisplay. 17 // [EGL 1.4] section 2.1.2 page 3. 18 19 #ifndef INCLUDE_DISPLAY_H_ 20 #define INCLUDE_DISPLAY_H_ 21 22 #include "Config.h" 23 #include "Common/MutexLock.hpp" 24 #include "Sync.hpp" 25 26 #include <set> 27 28 namespace egl 29 { 30 class Surface; 31 class Context; 32 33 const EGLDisplay PRIMARY_DISPLAY = (EGLDisplay)1; 34 const EGLDisplay HEADLESS_DISPLAY = (EGLDisplay)0xFACE1E55; 35 36 class Display 37 { 38 public: 39 static Display *get(EGLDisplay dpy); 40 41 bool initialize(); 42 void terminate(); 43 44 bool getConfigs(EGLConfig *configs, const EGLint *attribList, EGLint configSize, EGLint *numConfig); 45 bool getConfigAttrib(EGLConfig config, EGLint attribute, EGLint *value); 46 47 EGLSurface createWindowSurface(EGLNativeWindowType window, EGLConfig config, const EGLint *attribList); 48 EGLSurface createPBufferSurface(EGLConfig config, const EGLint *attribList); 49 EGLContext createContext(EGLConfig configHandle, const Context *shareContext, EGLint clientVersion); 50 EGLSyncKHR createSync(Context *context); 51 52 void destroySurface(Surface *surface); 53 void destroyContext(Context *context); 54 void destroySync(FenceSync *sync); 55 56 bool isInitialized() const; 57 bool isValidConfig(EGLConfig config); 58 bool isValidContext(Context *context); 59 bool isValidSurface(Surface *surface); 60 bool isValidWindow(EGLNativeWindowType window); 61 bool hasExistingWindowSurface(EGLNativeWindowType window); 62 bool isValidSync(FenceSync *sync); 63 64 EGLint getMinSwapInterval() const; 65 EGLint getMaxSwapInterval() const; 66 67 void *getNativeDisplay() const; 68 const char *getExtensionString() const; 69 70 private: 71 explicit Display(void *nativeDisplay); 72 ~Display(); 73 74 sw::Format getDisplayFormat() const; 75 76 void *const nativeDisplay; 77 78 EGLint mMaxSwapInterval; 79 EGLint mMinSwapInterval; 80 81 typedef std::set<Surface*> SurfaceSet; 82 SurfaceSet mSurfaceSet; 83 84 ConfigSet mConfigSet; 85 86 typedef std::set<Context*> ContextSet; 87 ContextSet mContextSet; 88 89 typedef std::set<FenceSync*> SyncSet; 90 sw::BackoffLock mSyncSetMutex; 91 SyncSet mSyncSet; 92 }; 93 } 94 95 #endif // INCLUDE_DISPLAY_H_ 96