#ifndef __GE_IGA_AUDIOBUFFER__
#define __GE_IGA_AUDIOBUFFER__
#include <QFile>
#include "GEInterfaces.h"
namespace GE {
class CAudioBufferPlayInstance;
class CAudioBuffer;
typedef AUDIO_SAMPLE_TYPE(*SAMPLE_FUNCTION_TYPE)(CAudioBuffer *abuffer, int pos, int channel);
class CAudioBuffer {
public:
CAudioBuffer();
virtual ~CAudioBuffer();
static CAudioBuffer* loadWav( QString fileName );
static CAudioBuffer* loadWav( FILE *wavFile );
void reallocate( int length );
inline void* getRawData() { return m_data; }
inline int getDataLength() { return m_dataLength; }
inline int getBytesPerSample() { return (m_bitsPerSample>>3); }
inline int getBitsPerSample() { return m_bitsPerSample; }
inline int getSamplesPerSec() { return m_samplesPerSec; }
inline short getNofChannels() { return m_nofChannels; }
inline SAMPLE_FUNCTION_TYPE getSampleFunction() { return m_sampleFunction; }
static AUDIO_SAMPLE_TYPE sampleFunction8bitMono( CAudioBuffer *abuffer, int pos, int channel );
static AUDIO_SAMPLE_TYPE sampleFunction16bitMono( CAudioBuffer *abuffer, int pos, int channel );
static AUDIO_SAMPLE_TYPE sampleFunction8bitStereo( CAudioBuffer *abuffer, int pos, int channel );
static AUDIO_SAMPLE_TYPE sampleFunction16bitStereo( CAudioBuffer *abuffer, int pos, int channel );
CAudioBufferPlayInstance *playWithMixer( GE::CAudioMixer &mixer );
protected:
SAMPLE_FUNCTION_TYPE m_sampleFunction;
short m_nofChannels;
void *m_data;
int m_dataLength;
short m_bitsPerSample;
bool m_signedData;
int m_samplesPerSec;
};
class CAudioBufferPlayInstance : public IAudioSource {
public:
CAudioBufferPlayInstance();
CAudioBufferPlayInstance( CAudioBuffer *start_playing );
virtual ~CAudioBufferPlayInstance();
void playBuffer( CAudioBuffer *startPlaying, float volume, float fixedSpeed, int loopTimes = 0 );
void setSpeed( float speed );
void setLeftVolume( float lvol );
void setRightVolume( float rvol );
inline void setLoopTimes( int ltimes ) { m_loopTimes = ltimes; }
void stop();
int pullAudio( AUDIO_SAMPLE_TYPE *target, int bufferLength );
bool canBeDestroyed();
bool isPlaying() { if (m_buffer) return true; else return false; }
inline bool isFinished() { return m_finished; }
inline bool destroyWhenFinished() { return m_destroyWhenFinished; }
inline void setDestroyWhenFinished( bool set ) { m_destroyWhenFinished = set; }
protected:
int mixBlock( AUDIO_SAMPLE_TYPE *target, int bufferLength );
bool m_finished;
bool m_destroyWhenFinished;
int m_fixedPos;
int m_fixedInc;
int m_fixedLeftVolume;
int m_fixedRightVolume;
int m_fixedCenter;
int m_loopTimes;
CAudioBuffer *m_buffer;
};
};
#endif