Differential D10828 Diff 29020 head/audio/rsynth/files/sndioplay.c

Changeset View

Standalone View

head/audio/rsynth/files/sndioplay.c

Property	Old Value	New Value
fbsd:nokeywords	null	yes \ No newline at end of property
svn:eol-style	null	native \ No newline at end of property
svn:mime-type	null	text/plain \ No newline at end of property

				#include <config.h>

				/*****************************************************************/
				/* */
				/* Play out a file on OpenBSD */
				/* (conf/linuxplay.c with changes) */
				/* */
				/*****************************************************************/

				#include <useconfig.h>
				#include <stdio.h>
				#include <math.h>
				#include <ctype.h>

				#include <sys/file.h>
				#include <sys/stat.h>
				#include <sys/param.h>
				#include <sys/signal.h>

				#include <sndio.h>

				#include "proto.h"
				#include "getargs.h"
				#include "hplay.h"

				#define SAMP_RATE 8000
				long samp_rate = SAMP_RATE;

				static struct sio_hdl *hdl;
				static struct sio_par par;

				char *prog = "hplay";

				int
				audio_init(int argc, char *argv[])
				{
				int rate_set = 0;
				int use_audio = 1;

				prog = argv[0];

				argc = getargs("Audio output",argc, argv,
				"r", "%d", &rate_set, "Sample rate",
				"a", NULL, &use_audio, "Audio enable",
				NULL);

				if (help_only)
				return argc;

				if (rate_set)
				samp_rate = rate_set;

				if (!use_audio)
				return argc;

				hdl = sio_open(NULL, SIO_PLAY, 0);
				if (hdl == NULL)
				{
				fprintf(stderr, "sio_open failed\n");
				return argc;
				}

				sio_initpar(&par);
				par.bits = 16;
				par.sig = 1;
				par.le = SIO_LE_NATIVE;
				par.rate = samp_rate;
				par.pchan = 1;

				if (!sio_setpar(hdl, &par) \|\| !sio_getpar(hdl, &par))
				{
				fprintf(stderr, "error setting sndio parameters\n");
				hdl = NULL;
				}

				if (par.bits != 16 \|\| par.le != SIO_LE_NATIVE \|\| par.sig != 1 \|\| par.pchan != 1)
				{
				fprintf(stderr, "returned incorrect sndio parameters\n");
				hdl = NULL;
				}

				samp_rate = par.rate;

				if (hdl && !sio_start(hdl))
				{
				fprintf(stderr, "error starting sndio\n");
				hdl = NULL;
				}

				return argc;
				}

				void
				audio_term()
				{
				if (hdl)
				{
				sio_close(hdl);
				hdl = NULL;
				}
				}

				void
				audio_play(int n, short *data)
				{
				if (n > 0 && hdl)
				{
				size_t size = n * sizeof(short);
				if (sio_write(hdl, data, size) != size)
				fprintf(stderr, "sio_write: short write");
				}
				}