justin
1 line
1.7 KiB
C++
1 line
1.7 KiB
C++
#include "sndserver.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/audioio.h>
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#include <sys/types.h>
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#include <stropts.h>
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#include <sys/conf.h>
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#include <sys/bufmod.h>
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#include "irix.h"
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int audio_fd;
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void myioctl(int fd, int command, void *arg)
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{
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int rc;
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extern int errno;
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rc = ioctl(fd, command, arg);
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if (rc < 0)
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{
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fprintf(stderr, "ioctl(dsp,%d,arg) failed\n", command);
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fprintf(stderr, "errno=%d\n", errno);
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}
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}
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void I_InitMusic(void)
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{
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}
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void I_InitSound(int samplerate, int samplesize)
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{
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int i;
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char *audio_filename = "/dev/audio";
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audio_info_t audio_info;
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if (getenv("AUDIODEV"))
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audio_filename = getenv("AUDIODEV");
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audio_fd = open(audio_filename, O_RDWR);
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if (audio_fd<0)
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fprintf(stderr, "Could not open %s\n", audio_filename);
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myioctl(audio_fd, AUDIO_GETINFO, &audio_info);
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AUDIO_INITINFO(&audio_info);
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audio_info.play.sample_rate = 11025;
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myioctl(audio_fd, AUDIO_SETINFO, &audio_info);
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AUDIO_INITINFO(&audio_info);
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audio_info.play.channels = 2;
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myioctl(audio_fd, AUDIO_SETINFO, &audio_info);
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AUDIO_INITINFO(&audio_info);
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audio_info.play.precision = 16;
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myioctl(audio_fd, AUDIO_SETINFO, &audio_info);
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AUDIO_INITINFO(&audio_info);
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audio_info.play.encoding = AUDIO_ENCODING_LINEAR;
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myioctl(audio_fd, AUDIO_SETINFO, &audio_info);
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AUDIO_INITINFO(&audio_info);
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audio_info.play.buffer_size = 1024;
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myioctl(audio_fd, AUDIO_SETINFO, &audio_info);
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}
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void I_SubmitOutputBuffer(void *samples, int samplecount)
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{
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/* myioctl(audio_fd, AUDIO_DRAIN, 0); */
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write(audio_fd, samples, samplecount*4);
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}
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void I_ShutdownSound(void)
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{
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close(audio_fd);
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}
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void I_ShutdownMusic(void)
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{
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}
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