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/*
Audio File Library
Copyright 1998-1999, Michael Pruett <michael@68k.org>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public
License along with this program; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
MA 02111-1307, USA.
*/
/*
sgi.c
These routines are used in SGI-specific test programs.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <unistd.h>
#include <audiofile.h>
#include <dmedia/audio.h>
/*
Set the sample width of an audio configuration.
*/
void setwidth (ALconfig config, int sampleWidth)
{
if (sampleWidth <= 8)
{
printf("setting width to 8\n");
alSetWidth(config, AL_SAMPLE_8);
}
else if (sampleWidth <= 16)
{
printf("setting width to 16\n");
alSetWidth(config, AL_SAMPLE_16);
}
else if (sampleWidth <= 24)
{
printf("setting width to 24\n");
alSetWidth(config, AL_SAMPLE_24);
}
}
/*
Set the sample format of an audio configuration.
*/
void setsampleformat (ALconfig config, int audioFileSampleFormat)
{
if (audioFileSampleFormat == AF_SAMPFMT_TWOSCOMP)
{
printf("setting sample format to 2's complement\n");
alSetSampFmt(config, AL_SAMPFMT_TWOSCOMP);
}
else if (audioFileSampleFormat == AF_SAMPFMT_FLOAT)
{
printf("setting sample format to float\n");
alSetSampFmt(config, AL_SAMPFMT_FLOAT);
}
else if (audioFileSampleFormat == AF_SAMPFMT_DOUBLE)
{
printf("setting sample format to double\n");
alSetSampFmt(config, AL_SAMPFMT_DOUBLE);
}
}
/*
Set the sample rate of an audio port.
*/
void setrate (ALport port, double rate)
{
int rv;
ALpv params;
rv = alGetResource(port);
params.param = AL_RATE;
params.value.ll = alDoubleToFixed(rate);
if (alSetParams(rv, ¶ms, 1) < 0)
{
printf("alSetParams failed: %s\n", alGetErrorString(oserror()));
}
}
/*
Wait until the audio port has no more samples to play.
*/
void waitport (ALport port)
{
while (alGetFilled(port) > 0)
sginap(1);
}
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