164 lines
7.4 KiB
C++
164 lines
7.4 KiB
C++
#ifndef HGL_AUDIO_PLAYER_INCLUDE
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#define HGL_AUDIO_PLAYER_INCLUDE
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// #include<hgl/HAC.H>
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#include<hgl/thread/Thread.h>
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#include<hgl/thread/ThreadMutex.h>
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#include<hgl/audio/OpenAL.h>
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#include<hgl/audio/AudioSource.h>
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#include<hgl/math/Math.h>
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using namespace openal;
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namespace hgl
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{
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namespace io
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{
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class InputStream;
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}//namespace io
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struct AudioPlugInInterface;
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enum class PlayState //播放器状态
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{
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None=0,
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Play,
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Pause,
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Exit
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};
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/**
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* 使用AudioPlayer创建的音频播放器类，一般用于背景音乐等独占的音频处理。
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* 这个音频播放器将使用一个单独的线程，在播放器被删除时线程也会被关闭。
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*/
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class AudioPlayer:public Thread ///音频播放器基类
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{
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ThreadMutex lock;
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protected:
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ALbyte *audio_data;
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int audio_data_size;
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void *audio_ptr; ///<音频数据指针
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char *audio_buffer;
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int audio_buffer_size;
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uint audio_buffer_count; ///<播放数据计数
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AudioPlugInInterface *decode;
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ALenum format; ///<音频数据格式
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ALsizei rate; ///<音频数据采样率
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struct
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{
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bool open;
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uint64 time;
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float gap;
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struct
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{
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float gain;
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double time;
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}start,end;
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}auto_gain; ///<自动增益
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bool ReadData(ALuint);
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bool UpdateBuffer();
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void ClearBuffer();
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bool Playback();
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bool IsExitDelete()const override{return false;}
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bool Execute() override;
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void InitPrivate();
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bool Load(AudioFileType);
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protected:
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volatile bool loop;
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volatile PlayState ps;
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AudioSource audiosource;
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ALuint source;
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ALuint buffer[3];
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double total_time;
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double wait_time;
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double gain;
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double start_time;
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double fade_in_time;
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double fade_out_time;
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public: //属性
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uint GetIndex()const{return audiosource.index;} ///<获取音源索引
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double GetTotalTime()const{return total_time;} ///<获取音频总时长
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PlayState GetPlayState()const{return ps;} ///<获取播放器状态
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int GetSourceState()const{return audiosource.GetState();} ///<获取音源索引
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bool IsLoop(); ///<是否循环播放
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void SetLoop(bool); ///<设置循环播放
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float GetGain()const{return audiosource.gain;} ///<获取音量增益
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float GetMinGain()const{return audiosource.GetMinGain();} ///<获取音量最小增益
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float GetMaxGain()const{return audiosource.GetMaxGain();} ///<获取音量最大增益
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float GetConeGain()const{return audiosource.cone_gain;} ///<获取音量锥形增益
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void SetGain(float val){audiosource.SetGain(val);} ///<设置音量增益
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void SetConeGain(float val){audiosource.SetConeGain(val);} ///<设置音量锥形增益
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float GetPitch()const{return audiosource.pitch;} ///<获取播放频率
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void SetPitch(float val){audiosource.SetPitch(val);} ///<设置播放频率
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float GetRolloffFactor()const{return audiosource.rolloff_factor;} ///<获取Rolloff因子
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void SetRolloffFactor(float f){audiosource.SetRolloffFactor(f);} ///<设置Rolloff因子
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public: //属性方法
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const Vector3f & GetPosition(){return audiosource.position;} const
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void SetPosition(const Vector3f &pos){audiosource.SetPosition(pos);}
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const Vector3f & GetVelocity(){return audiosource.velocity;} const
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void SetVelocity(const Vector3f &vel){audiosource.SetVelocity(vel);}
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const Vector3f & GetDirection(){return audiosource.direction;} const
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void SetDirection(const Vector3f &dir){audiosource.SetDirection(dir);}
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const void GetDistance(float &ref_distance, float &max_distance)const{audiosource.GetDistance(ref_distance,max_distance);} const
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void SetDistance(const float &ref_distance,const float &max_distance){audiosource.SetDistance(ref_distance,max_distance);}
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const ConeAngle & GetConeAngle(){return audiosource.angle;} const
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void SetConeAngle(const ConeAngle &ca){audiosource.SetConeAngle(ca);}
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public: //方法
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AudioPlayer();
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AudioPlayer(io::InputStream *,int,AudioFileType);
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AudioPlayer(const os_char *,AudioFileType=AudioFileType::None);
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// AudioPlayer(HAC *,const os_char *,AudioFileType=AudioFileType::None);
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virtual ~AudioPlayer();
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virtual bool Load(io::InputStream *,int,AudioFileType); ///<从流中加载一个音频文件
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virtual bool Load(const os_char *,AudioFileType=AudioFileType::None); ///<加载一个音频文件
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// virtual bool Load(HAC *,const os_char *,AudioFileType=AudioFileType::None); ///<从HAC包中加载一个音频文件
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virtual void Play(bool=true); ///<播放音频
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virtual void Stop(); ///<停止播放
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virtual void Pause(); ///<暂停播放
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virtual void Resume(); ///<继续播放
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virtual void Clear(); ///<清除音频数据
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virtual double GetPlayTime(); ///<取得已播放时间(单位秒)
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virtual void SetFadeTime(double,double); ///<设置淡入淡出时间
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virtual void AutoGain(float,double,const double cur_time); ///<自动音量
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};//class AudioPlayer
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}//namespace hgl
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#endif//HGL_AUDIO_PLAYER_INCLUDE
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