1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef RENDERSTATE_H 17 #define RENDERSTATE_H 18 19 #include <pthread.h> 20 #include <utils/RefBase.h> 21 22 #include <set> 23 24 #include "utils/Macros.h" 25 26 namespace android { 27 namespace uirenderer { 28 29 class Layer; 30 31 namespace renderthread { 32 class CacheManager; 33 class RenderThread; 34 } 35 36 class IGpuContextCallback { 37 public: 38 virtual void onContextDestroyed() = 0; 39 protected: ~IGpuContextCallback()40 virtual ~IGpuContextCallback() {} 41 }; 42 43 // wrapper of Caches for users to migrate to. 44 class RenderState { 45 PREVENT_COPY_AND_ASSIGN(RenderState); 46 friend class renderthread::RenderThread; 47 friend class renderthread::CacheManager; 48 49 public: registerContextCallback(IGpuContextCallback * cb)50 void registerContextCallback(IGpuContextCallback* cb) { mContextCallbacks.insert(cb); } removeContextCallback(IGpuContextCallback * cb)51 void removeContextCallback(IGpuContextCallback* cb) { mContextCallbacks.erase(cb); } 52 registerLayer(Layer * layer)53 void registerLayer(Layer* layer) { mActiveLayers.insert(layer); } unregisterLayer(Layer * layer)54 void unregisterLayer(Layer* layer) { mActiveLayers.erase(layer); } 55 56 // TODO: This system is a little clunky feeling, this could use some 57 // more thinking... 58 void postDecStrong(VirtualLightRefBase* object); 59 getRenderThread()60 renderthread::RenderThread& getRenderThread() const { return mRenderThread; } 61 62 private: 63 explicit RenderState(renderthread::RenderThread& thread); ~RenderState()64 ~RenderState() {} 65 66 // Context notifications are only to be triggered by renderthread::RenderThread 67 void onContextDestroyed(); 68 69 std::set<IGpuContextCallback*> mContextCallbacks; 70 std::set<Layer*> mActiveLayers; 71 72 renderthread::RenderThread& mRenderThread; 73 pthread_t mThreadId; 74 }; 75 76 } /* namespace uirenderer */ 77 } /* namespace android */ 78 79 #endif /* RENDERSTATE_H */ 80