1 /* 2 * Copyright (C) 2013 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 ANDROID_HWUI_TASK_PROCESSOR_H 18 #define ANDROID_HWUI_TASK_PROCESSOR_H 19 20 #include <utils/RefBase.h> 21 22 #include "Task.h" 23 #include "TaskManager.h" 24 25 namespace android { 26 namespace uirenderer { 27 28 class TaskProcessorBase: public RefBase { 29 public: TaskProcessorBase()30 TaskProcessorBase() { } ~TaskProcessorBase()31 virtual ~TaskProcessorBase() { }; 32 33 private: 34 friend class TaskManager; 35 36 virtual void process(const sp<TaskBase>& task) = 0; 37 }; 38 39 template<typename T> 40 class TaskProcessor: public TaskProcessorBase { 41 public: TaskProcessor(TaskManager * manager)42 TaskProcessor(TaskManager* manager): mManager(manager) { } ~TaskProcessor()43 virtual ~TaskProcessor() { } 44 45 bool add(const sp<Task<T> >& task); 46 47 virtual void onProcess(const sp<Task<T> >& task) = 0; 48 49 private: process(const sp<TaskBase> & task)50 virtual void process(const sp<TaskBase>& task) { 51 sp<Task<T> > realTask = static_cast<Task<T>* >(task.get()); 52 // This is the right way to do it but sp<> doesn't play nice 53 // sp<Task<T> > realTask = static_cast<sp<Task<T> > >(task); 54 onProcess(realTask); 55 } 56 57 TaskManager* mManager; 58 }; 59 60 template<typename T> add(const sp<Task<T>> & task)61bool TaskProcessor<T>::add(const sp<Task<T> >& task) { 62 if (mManager) { 63 sp<TaskProcessor<T> > self(this); 64 return mManager->addTask(task, self); 65 } 66 return false; 67 } 68 69 }; // namespace uirenderer 70 }; // namespace android 71 72 #endif // ANDROID_HWUI_TASK_PROCESSOR_H 73