1 files changed, 109 insertions, 0 deletions
diff --git a/examples/sgi.c b/examples/sgi.c
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+++ b/examples/sgi.c
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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, &params, 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);
+}