CanvasContext.h revision ddf2215d9807b641dbcb304779ef6b530f876ac7
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 "DamageAccumulator.h" 21#include "IContextFactory.h" 22#include "FrameInfo.h" 23#include "FrameInfoVisualizer.h" 24#include "RenderNode.h" 25#include "utils/RingBuffer.h" 26#include "renderthread/RenderTask.h" 27#include "renderthread/RenderThread.h" 28 29#include <cutils/compiler.h> 30#include <EGL/egl.h> 31#include <SkBitmap.h> 32#include <SkRect.h> 33#include <utils/Functor.h> 34 35#include <set> 36#include <string> 37#include <vector> 38 39namespace android { 40namespace uirenderer { 41 42class AnimationContext; 43class DeferredLayerUpdater; 44class OpenGLRenderer; 45class Rect; 46class Layer; 47class RenderState; 48 49namespace renderthread { 50 51class EglManager; 52 53enum SwapBehavior { 54 kSwap_default, 55 kSwap_discardBuffer, 56}; 57 58// This per-renderer class manages the bridge between the global EGL context 59// and the render surface. 60// TODO: Rename to Renderer or some other per-window, top-level manager 61class CanvasContext : public IFrameCallback { 62public: 63 CanvasContext(RenderThread& thread, bool translucent, RenderNode* rootRenderNode, 64 IContextFactory* contextFactory); 65 virtual ~CanvasContext(); 66 67 // Won't take effect until next EGLSurface creation 68 void setSwapBehavior(SwapBehavior swapBehavior); 69 70 bool initialize(ANativeWindow* window); 71 void updateSurface(ANativeWindow* window); 72 bool pauseSurface(ANativeWindow* window); 73 bool hasSurface() { return mNativeWindow.get(); } 74 75 void setup(int width, int height, float lightRadius, 76 uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha); 77 void setLightCenter(const Vector3& lightCenter); 78 void setOpaque(bool opaque); 79 void makeCurrent(); 80 void processLayerUpdate(DeferredLayerUpdater* layerUpdater); 81 void prepareTree(TreeInfo& info, int64_t* uiFrameInfo, 82 int64_t syncQueued, RenderNode* target); 83 void draw(); 84 void destroy(); 85 86 // IFrameCallback, Chroreographer-driven frame callback entry point 87 virtual void doFrame() override; 88 void prepareAndDraw(RenderNode* node); 89 90 void buildLayer(RenderNode* node); 91 bool copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap); 92 void markLayerInUse(RenderNode* node); 93 94 void destroyHardwareResources(); 95 static void trimMemory(RenderThread& thread, int level); 96 97 static void invokeFunctor(RenderThread& thread, Functor* functor); 98 99 void runWithGlContext(RenderTask* task); 100 101 Layer* createTextureLayer(); 102 103 ANDROID_API static void setTextureAtlas(RenderThread& thread, 104 const sp<GraphicBuffer>& buffer, int64_t* map, size_t mapSize); 105 106 void stopDrawing(); 107 void notifyFramePending(); 108 109 FrameInfoVisualizer& profiler() { return mProfiler; } 110 111 void dumpFrames(int fd); 112 void resetFrameStats(); 113 114 void setName(const std::string&& name) { mName = name; } 115 const std::string& name() { return mName; } 116 117 void serializeDisplayListTree(); 118 119 void addRenderNode(RenderNode* node, bool placeFront) { 120 int pos = placeFront ? 0 : static_cast<int>(mRenderNodes.size()); 121 mRenderNodes.emplace( mRenderNodes.begin() + pos, node); 122 } 123 124 void removeRenderNode(RenderNode* node) { 125 mRenderNodes.erase(std::remove(mRenderNodes.begin(), mRenderNodes.end(), node), 126 mRenderNodes.end()); 127 } 128 129 void setContentDrawBounds(int left, int top, int right, int bottom) { 130 mContentDrawBounds.set(left, top, right, bottom); 131 } 132 133private: 134 friend class RegisterFrameCallbackTask; 135 // TODO: Replace with something better for layer & other GL object 136 // lifecycle tracking 137 friend class android::uirenderer::RenderState; 138 139 void setSurface(ANativeWindow* window); 140 void requireSurface(); 141 142 void freePrefetechedLayers(); 143 144 int lastFrameWidth = 0; 145 int lastFrameHeight = 0; 146 147 RenderThread& mRenderThread; 148 EglManager& mEglManager; 149 sp<ANativeWindow> mNativeWindow; 150 EGLSurface mEglSurface = EGL_NO_SURFACE; 151 bool mBufferPreserved = false; 152 SwapBehavior mSwapBehavior = kSwap_default; 153 RingBuffer<SkRect, 3> mDamageHistory; 154 155 bool mOpaque; 156 OpenGLRenderer* mCanvas = nullptr; 157 bool mHaveNewSurface = false; 158 DamageAccumulator mDamageAccumulator; 159 std::unique_ptr<AnimationContext> mAnimationContext; 160 161 std::vector< sp<RenderNode> > mRenderNodes; 162 163 FrameInfo* mCurrentFrameInfo = nullptr; 164 // Ring buffer large enough for 2 seconds worth of frames 165 RingBuffer<FrameInfo, 120> mFrames; 166 std::string mName; 167 JankTracker mJankTracker; 168 FrameInfoVisualizer mProfiler; 169 170 std::set<RenderNode*> mPrefetechedLayers; 171 172 // Stores the bounds of the main content. 173 Rect mContentDrawBounds; 174}; 175 176} /* namespace renderthread */ 177} /* namespace uirenderer */ 178} /* namespace android */ 179#endif /* CANVASCONTEXT_H_ */ 180