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83 lines
2.1 KiB
83 lines
2.1 KiB
/*
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* Copyright 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_SURFACEREPLAYER_BUFFERQUEUESCHEDULER_H
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#define ANDROID_SURFACEREPLAYER_BUFFERQUEUESCHEDULER_H
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#include "Color.h"
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#include "Event.h"
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#include <gui/SurfaceControl.h>
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#include <utils/StrongPointer.h>
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#include <atomic>
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#include <condition_variable>
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#include <mutex>
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#include <queue>
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#include <utility>
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namespace android {
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auto constexpr LAYER_ALPHA = 190;
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struct Dimensions {
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Dimensions() = default;
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Dimensions(int w, int h) : width(w), height(h) {}
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int width = 0;
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int height = 0;
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};
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struct BufferEvent {
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BufferEvent() = default;
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BufferEvent(std::shared_ptr<Event> e, Dimensions d) : event(e), dimensions(d) {}
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std::shared_ptr<Event> event;
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Dimensions dimensions;
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};
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class BufferQueueScheduler {
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public:
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BufferQueueScheduler(const sp<SurfaceControl>& surfaceControl, const HSV& color, int id);
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void startScheduling();
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void addEvent(const BufferEvent&);
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void stopScheduling();
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void setSurfaceControl(const sp<SurfaceControl>& surfaceControl, const HSV& color);
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private:
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void bufferUpdate(const Dimensions& dimensions);
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// Lock and fill the surface, block until the event is signaled by the main loop,
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// then unlock and post the buffer.
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void fillSurface(const std::shared_ptr<Event>& event);
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sp<SurfaceControl> mSurfaceControl;
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HSV mColor;
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const int mSurfaceId;
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bool mContinueScheduling;
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std::queue<BufferEvent> mBufferEvents;
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std::mutex mMutex;
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std::condition_variable mCondition;
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};
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} // namespace android
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#endif
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