DrawFrameTask.h revision 9a17da8125c36c82ba73e7f4b3ed80b9c633767f
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 "../FrameInfo.h" 29#include "../TreeInfo.h" 30 31namespace android { 32namespace uirenderer { 33 34class DeferredLayerUpdater; 35class DisplayList; 36class RenderNode; 37 38namespace renderthread { 39 40class CanvasContext; 41class RenderThread; 42 43namespace SyncResult { 44enum { 45 OK = 0, 46 UIRedrawRequired = 1 << 0, 47 LostSurfaceRewardIfFound = 1 << 1, 48 ContextIsStopped = 1 << 2, 49}; 50} 51 52/* 53 * This is a special Super Task. It is re-used multiple times by RenderProxy, 54 * and contains state (such as layer updaters & new DisplayLists) that is 55 * tracked across many frames not just a single frame. 56 * It is the sync-state task, and will kick off the post-sync draw 57 */ 58class DrawFrameTask : public RenderTask { 59public: 60 DrawFrameTask(); 61 virtual ~DrawFrameTask(); 62 63 void setContext(RenderThread* thread, CanvasContext* context, RenderNode* targetNode); 64 65 void pushLayerUpdate(DeferredLayerUpdater* layer); 66 void removeLayerUpdate(DeferredLayerUpdater* layer); 67 68 int drawFrame(TreeObserver* observer); 69 70 int64_t* frameInfo() { return mFrameInfo; } 71 72 virtual void run() override; 73 74private: 75 void postAndWait(); 76 bool syncFrameState(TreeInfo& info); 77 void unblockUiThread(); 78 79 Mutex mLock; 80 Condition mSignal; 81 82 RenderThread* mRenderThread; 83 CanvasContext* mContext; 84 RenderNode* mTargetNode = nullptr; 85 86 /********************************************* 87 * Single frame data 88 *********************************************/ 89 std::vector< sp<DeferredLayerUpdater> > mLayers; 90 91 int mSyncResult; 92 int64_t mSyncQueued; 93 TreeObserver* mObserver; 94 95 int64_t mFrameInfo[UI_THREAD_FRAME_INFO_SIZE]; 96}; 97 98} /* namespace renderthread */ 99} /* namespace uirenderer */ 100} /* namespace android */ 101 102#endif /* DRAWFRAMETASK_H */ 103