From 15318cad33835e4e2dc620d033e43cd930676cdd Mon Sep 17 00:00:00 2001
From: kergoth <kergoth>
Date: Fri, 25 Jan 2002 22:14:26 +0000
Subject: Initial revision

---
(limited to 'library/sound.cpp')

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    
+}
--
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