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// soundblaster.C
/******************************************************************************
*
* MiXViews - an X window system based sound & data editor/processor
*
* Copyright (c) 1993, 1994 Regents of the University of California
*
* Author: Douglas Scott
* Date: December 13, 1994
*
* Permission to use, copy and modify this software and its documentation
* for research and/or educational purposes and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation. The author reserves the right to distribute this
* software and its documentation. The University of California and the author
* make no representations about the suitability of this software for any
* purpose, and in no event shall University of California be liable for any
* damage, loss of data, or profits resulting from its use.
* It is provided "as is" without express or implied warranty.
*
******************************************************************************/
#ifdef __GNUG__
#pragma implementation
#endif
#include "application.h"
#include "soundblaster.h"
#include <sys/sb.h>
SoundBlaster::SoundBlaster() : ConverterDevice("/dev/sbdsp") {}
SoundBlaster::~SoundBlaster() {
stop();
}
boolean
SoundBlaster::isPlayableFormat(DataType type) {
return (type == MuLawData);
}
DataType
SoundBlaster::bestPlayableType() {
return MuLawData;
}
int
SoundBlaster::pause() {
return false;
}
int
SoundBlaster::stop() {
return ConverterDevice::stop();
}
int
SoundBlaster::checkSampleRate(int rate) {
if(rate < 4000 || rate > 24000) {
Application::alert("Sample rate must be 4000-24000 to be played.");
return false;
}
return true;
}
int
SoundBlaster::checkChannels(int chans) {
if(chans != 1) {
Application::alert("Only monaural files may be played.");
return false;
}
return true;
}
int
SoundBlaster::doConfigure() {
int status = true;
if(!reOpen())
status = false;
else if(ioctl(DSP_IOCTL_SPEED, sampleRate()) < 0) {
error("Can't initialize device!");
status = false;
}
return status;
}
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