| -rw-r--r-- | library/sound.cpp | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/library/sound.cpp b/library/sound.cpp new file mode 100644 index 0000000..373fd4c --- a/dev/null +++ b/library/sound.cpp @@ -0,0 +1,173 @@ +/********************************************************************** +** Copyright (C) 2000 Trolltech AS. All rights reserved. +** +** This file is part of Qtopia Environment. +** +** This file may be distributed and/or modified under the terms of the +** GNU General Public License version 2 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. +** +** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE +** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. +** +** See http://www.trolltech.com/gpl/ for GPL licensing information. +** +** Contact info@trolltech.com if any conditions of this licensing are +** not clear to you. +** +**********************************************************************/ + +#include <qpe/resource.h> +#include <qpe/sound.h> +#include <qpe/qcopenvelope_qws.h> + +#include <qsound.h> +#include <qfile.h> + +#ifndef QT_NO_SOUND +static int WAVsoundDuration(const QString& filename) +{ + // bad solution + + // most of this is copied from qsoundqss.cpp + + QFile input(filename); + if ( !input.open(IO_ReadOnly) ) + return 0; + + struct QRiffChunk { + char id[4]; + Q_UINT32 size; + char data[4/*size*/]; + } chunk; + + struct { + Q_INT16 formatTag; + Q_INT16 channels; + Q_INT32 samplesPerSec; + Q_INT32 avgBytesPerSec; + Q_INT16 blockAlign; + Q_INT16 wBitsPerSample; + } chunkdata; + + int total = 0; + + while(1) { + // Keep reading chunks... + const int n = sizeof(chunk)-sizeof(chunk.data); + if ( input.readBlock((char*)&chunk,n) != n ) + break; + if ( qstrncmp(chunk.id,"data",4) == 0 ) { + total += chunkdata.avgBytesPerSec ? + chunk.size * 1000 / chunkdata.avgBytesPerSec : 0; +//qDebug("%d bytes of PCM (%dms)", chunk.size,chunkdata.avgBytesPerSec ? chunk.size * 1000 / chunkdata.avgBytesPerSec : 0); + input.at(input.at()+chunk.size-4); + } else if ( qstrncmp(chunk.id,"RIFF",4) == 0 ) { + char d[4]; + if ( input.readBlock(d,4) != 4 ) + return 0; + if ( qstrncmp(d,"WAVE",4) != 0 ) { + // skip +//qDebug("skip %.4s RIFF chunk",d); + if ( chunk.size < 10000000 ) + (void)input.at(input.at()+chunk.size-4); + } + } else if ( qstrncmp(chunk.id,"fmt ",4) == 0 ) { + if ( input.readBlock((char*)&chunkdata,sizeof(chunkdata)) != sizeof(chunkdata) ) + return 0; +#define WAVE_FORMAT_PCM 1 + if ( chunkdata.formatTag != WAVE_FORMAT_PCM ) { + //qDebug("WAV file: UNSUPPORTED FORMAT %d",chunkdata.formatTag); + return 0; + } + } else { +//qDebug("skip %.4s chunk",chunk.id); + // ignored chunk + if ( chunk.size < 10000000 ) + (void)input.at(input.at()+chunk.size); + } + } + +//qDebug("%dms",total); + return total; +} + +class SoundData : public QSound { +public: + SoundData(const QString& name) : + QSound(Resource::findSound(name)), + filename(Resource::findSound(name)) + { + } + + void playLoop() + { + // needs server support + + int ms = WAVsoundDuration(filename); + if ( ms ) + startTimer(ms > 50 ? ms-50 : 0); // 50 for latency + play(); + } + + void timerEvent(QTimerEvent*) + { + play(); + } + +private: + QString filename; +}; +#endif + +Sound::Sound(const QString& name) +{ +#ifndef QT_NO_SOUND + d = new SoundData(name); +#endif +} + +Sound::~Sound() +{ +#ifndef QT_NO_SOUND + delete d; +#endif +} + +void Sound::play() +{ +#ifndef QT_NO_SOUND + d->killTimers(); + d->play(); +#endif +} + +void Sound::playLoop() +{ +#ifndef QT_NO_SOUND + d->killTimers(); + d->playLoop(); +#endif +} + +void Sound::stop() +{ +#ifndef QT_NO_SOUND + d->killTimers(); +#endif +} + + +void Sound::soundAlarm() +{ +#ifdef QT_QWS_CUSTOM +# ifndef QT_NO_COP + QCopEnvelope( "QPE/TaskBar", "soundAlarm()" ); +# endif +#else +# ifndef QT_NO_SOUND + QSound::play(Resource::findSound("alarm")); +# endif +#endif +} |