DrawFrameTask.h revision fe5e7b7346a54537b980796ceeca66bfdbd05561
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 DRAWFRAMETASK_H 17#define DRAWFRAMETASK_H 18 19#include <utils/Condition.h> 20#include <utils/Mutex.h> 21#include <utils/StrongPointer.h> 22#include <utils/Vector.h> 23 24#include "RenderTask.h" 25 26#include "../Rect.h" 27#include "../TreeInfo.h" 28 29namespace android { 30namespace uirenderer { 31 32class DeferredLayerUpdater; 33class DisplayListData; 34class RenderNode; 35 36namespace renderthread { 37 38class CanvasContext; 39class RenderThread; 40 41enum SyncResult { 42 kSync_OK = 0, 43 kSync_UIRedrawRequired = 1 << 1, 44}; 45 46/* 47 * This is a special Super Task. It is re-used multiple times by RenderProxy, 48 * and contains state (such as layer updaters & new DisplayListDatas) that is 49 * tracked across many frames not just a single frame. 50 * It is the sync-state task, and will kick off the post-sync draw 51 */ 52class DrawFrameTask : public RenderTask { 53public: 54 DrawFrameTask(); 55 virtual ~DrawFrameTask(); 56 57 void setContext(RenderThread* thread, CanvasContext* context); 58 59 void addLayer(DeferredLayerUpdater* layer); 60 void removeLayer(DeferredLayerUpdater* layer); 61 62 void setDirty(int left, int top, int right, int bottom); 63 void setDensity(float density) { mDensity = density; } 64 int drawFrame(nsecs_t frameTimeNanos, nsecs_t recordDurationNanos); 65 66 virtual void run(); 67 68private: 69 void postAndWait(); 70 bool syncFrameState(TreeInfo& info); 71 void unblockUiThread(); 72 73 Mutex mLock; 74 Condition mSignal; 75 76 RenderThread* mRenderThread; 77 CanvasContext* mContext; 78 79 /********************************************* 80 * Single frame data 81 *********************************************/ 82 Rect mDirty; 83 nsecs_t mFrameTimeNanos; 84 nsecs_t mRecordDurationNanos; 85 float mDensity; 86 87 int mSyncResult; 88 89 /********************************************* 90 * Multi frame data 91 *********************************************/ 92 Vector<DeferredLayerUpdater*> mLayers; 93}; 94 95} /* namespace renderthread */ 96} /* namespace uirenderer */ 97} /* namespace android */ 98 99#endif /* DRAWFRAMETASK_H */ 100