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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef __GE_IGA_AUDIOBUFFER__
#define __GE_IGA_AUDIOBUFFER__
#include <QFile>
#include "GEInterfaces.h"
namespace GE {
class CAudioBufferPlayInstance;
class CAudioBuffer; // forward declaration
typedef AUDIO_SAMPLE_TYPE(*SAMPLE_FUNCTION_TYPE)(CAudioBuffer *abuffer, int pos, int channel);
class CAudioBuffer { // container for a sound
public:
CAudioBuffer();
virtual ~CAudioBuffer();
static CAudioBuffer* loadWav( QString fileName );
static CAudioBuffer* loadWav( FILE *wavFile ); // support for stdio
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 implementations of sample functions
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; // in bytes
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 ); // looptimes -1 = loop forever
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
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