DrawFrameTask.h revision d5a4a1aac980c304d6f46f07f15bfc5c94d8f9d0
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 DisplayListData; 36class RenderNode; 37 38namespace renderthread { 39 40class CanvasContext; 41class RenderThread; 42 43enum SyncResult { 44 kSync_OK = 0, 45 kSync_UIRedrawRequired = 1 << 0, 46 kSync_LostSurfaceRewardIfFound = 1 << 1, 47}; 48 49/* 50 * This is a special Super Task. It is re-used multiple times by RenderProxy, 51 * and contains state (such as layer updaters & new DisplayListDatas) that is 52 * tracked across many frames not just a single frame. 53 * It is the sync-state task, and will kick off the post-sync draw 54 */ 55class DrawFrameTask : public RenderTask { 56public: 57 DrawFrameTask(); 58 virtual ~DrawFrameTask(); 59 60 void setContext(RenderThread* thread, CanvasContext* context); 61 62 void pushLayerUpdate(DeferredLayerUpdater* layer); 63 void removeLayerUpdate(DeferredLayerUpdater* layer); 64 65 void setDensity(float density) { mDensity = density; } 66 int drawFrame(); 67 68 int64_t* frameInfo() { return mFrameInfo; } 69 70 virtual void run(); 71 72private: 73 void postAndWait(); 74 bool syncFrameState(TreeInfo& info); 75 void unblockUiThread(); 76 77 Mutex mLock; 78 Condition mSignal; 79 80 RenderThread* mRenderThread; 81 CanvasContext* mContext; 82 83 /********************************************* 84 * Single frame data 85 *********************************************/ 86 float mDensity; 87 std::vector< sp<DeferredLayerUpdater> > mLayers; 88 89 int mSyncResult; 90 91 int64_t mFrameInfo[UI_THREAD_FRAME_INFO_SIZE]; 92}; 93 94} /* namespace renderthread */ 95} /* namespace uirenderer */ 96} /* namespace android */ 97 98#endif /* DRAWFRAMETASK_H */ 99