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cocos2d-x/cocos/audio/android/Track.h

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+/****************************************************************************
+Copyright (c) 2016 Chukong Technologies Inc.
+Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
+
+http://www.cocos2d-x.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+****************************************************************************/
+
+#pragma once
+
+#include "audio/android/PcmData.h"
+#include "audio/android/IVolumeProvider.h"
+#include "audio/android/PcmBufferProvider.h"
+
+#include <functional>
+#include <mutex>
+
+namespace cocos2d { 
+
+class Track : public PcmBufferProvider, public IVolumeProvider
+{
+public:
+    enum class State
+    {
+        IDLE,
+        PLAYING,
+        RESUMED,
+        PAUSED,
+        STOPPED,
+        OVER,
+        DESTROYED
+    };
+
+    Track(const PcmData &pcmData);
+    virtual ~Track();
+
+    inline State getState() const { return _state; };
+    void setState(State state);
+
+    inline State getPrevState() const { return _prevState; };
+
+    inline bool isPlayOver() const { return _state == State::PLAYING && _nextFrame >= _numFrames;};
+    inline void setName(int name) { _name = name; };
+    inline int getName() const { return _name; };
+
+    void setVolume(float volume);
+    float getVolume() const;
+
+    void setAudioFocus(bool isFocus);
+
+    bool setPosition(float pos);
+    float getPosition() const;
+
+    virtual gain_minifloat_packed_t getVolumeLR() override ;
+
+    inline void setLoop(bool isLoop) { _isLoop = isLoop; };
+    inline bool isLoop() const { return _isLoop; };
+
+    std::function<void(State)> onStateChanged;
+
+private:
+    inline bool isVolumeDirty() const
+    { return _isVolumeDirty; };
+
+    inline void setVolumeDirty(bool isDirty)
+    { _isVolumeDirty = isDirty; };
+
+    inline bool isInitialized() const
+    { return _isInitialized; };
+
+    inline void setInitialized(bool isInitialized)
+    { _isInitialized = isInitialized; };
+
+private:
+    PcmData _pcmData;
+    State _prevState;
+    State _state;
+    std::mutex _stateMutex;
+    int _name;
+    float _volume;
+    bool _isVolumeDirty;
+    std::mutex _volumeDirtyMutex;
+    bool _isLoop;
+    bool _isInitialized;
+    bool _isAudioFocus;
+
+    friend class AudioMixerController;
+};
+
+} // namespace cocos2d {