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