CanvasContext.h revision d72e0a339b54af0c4e731513bbad120dff694723
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 17#ifndef CANVASCONTEXT_H_ 18#define CANVASCONTEXT_H_ 19 20#include <cutils/compiler.h> 21#include <EGL/egl.h> 22#include <SkBitmap.h> 23#include <utils/Functor.h> 24#include <utils/Vector.h> 25 26#include "../DrawProfiler.h" 27#include "../RenderNode.h" 28#include "RenderTask.h" 29#include "RenderThread.h" 30 31#define FUNCTOR_PROCESS_DELAY 4 32 33namespace android { 34namespace uirenderer { 35 36class DeferredLayerUpdater; 37class OpenGLRenderer; 38class Rect; 39class Layer; 40 41namespace renderthread { 42 43class GlobalContext; 44 45// This per-renderer class manages the bridge between the global EGL context 46// and the render surface. 47class CanvasContext : public IFrameCallback { 48public: 49 CanvasContext(bool translucent, RenderNode* rootRenderNode); 50 virtual ~CanvasContext(); 51 52 bool initialize(ANativeWindow* window); 53 void updateSurface(ANativeWindow* window); 54 void pauseSurface(ANativeWindow* window); 55 void setup(int width, int height, const Vector3& lightCenter, float lightRadius); 56 void setOpaque(bool opaque); 57 void makeCurrent(); 58 void processLayerUpdate(DeferredLayerUpdater* layerUpdater, TreeInfo& info); 59 void prepareTree(TreeInfo& info); 60 void draw(Rect* dirty); 61 void destroyCanvasAndSurface(); 62 63 // IFrameCallback, Chroreographer-driven frame callback entry point 64 virtual void doFrame(); 65 66 bool copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap); 67 68 void flushCaches(Caches::FlushMode flushMode); 69 70 void invokeFunctor(Functor* functor); 71 72 void runWithGlContext(RenderTask* task); 73 74 Layer* createRenderLayer(int width, int height); 75 Layer* createTextureLayer(); 76 77 ANDROID_API static void setTextureAtlas(const sp<GraphicBuffer>& buffer, 78 int64_t* map, size_t mapSize); 79 80 void notifyFramePending(); 81 82 DrawProfiler& profiler() { return mProfiler; } 83 84private: 85 friend class RegisterFrameCallbackTask; 86 87 void setSurface(ANativeWindow* window); 88 void swapBuffers(); 89 void requireSurface(); 90 91 void requireGlContext(); 92 93 GlobalContext* mGlobalContext; 94 RenderThread& mRenderThread; 95 sp<ANativeWindow> mNativeWindow; 96 EGLSurface mEglSurface; 97 bool mDirtyRegionsEnabled; 98 99 bool mOpaque; 100 OpenGLRenderer* mCanvas; 101 bool mHaveNewSurface; 102 103 const sp<RenderNode> mRootRenderNode; 104 105 DrawProfiler mProfiler; 106}; 107 108} /* namespace renderthread */ 109} /* namespace uirenderer */ 110} /* namespace android */ 111#endif /* CANVASCONTEXT_H_ */ 112