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164 lines
3.5 KiB
164 lines
3.5 KiB
/* Extended Module Player |
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* Copyright (C) 1996-2012 Claudio Matsuoka and Hipolito Carraro Jr |
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* |
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* This file is part of the Extended Module Player and is distributed |
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* under the terms of the GNU General Public License. See doc/COPYING |
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* for more information. |
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*/ |
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/* This code was tested on a 9000/710 running HP-UX 9.05 with 8 kHz, |
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* 16 bit mono output. |
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*/ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include <unistd.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <sys/ioctl.h> |
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#include <sys/audio.h> |
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#include <fcntl.h> |
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#include "common.h" |
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#include "driver.h" |
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#include "mixer.h" |
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static int audio_fd; |
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static int init(struct context_data *); |
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static int setaudio(struct xmp_options *); |
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static void bufdump(struct context_data *, void *, int); |
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static void shutdown(struct context_data *); |
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static void dummy() |
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{ |
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} |
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/* Standard sampling rates */ |
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static int srate[] = { |
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44100, 32000, 22050, 16000, 11025, 8000, 0 |
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}; |
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static char *help[] = { |
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"gain=val", "Audio output gain (0 to 255)", |
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"port={s|h|l}", "Audio port (s[peaker], h[eadphones], l[ineout])", |
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"buffer=val", "Audio buffer size", |
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NULL |
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}; |
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struct xmp_drv_info drv_hpux = { |
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"hpux", /* driver ID */ |
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"HP-UX PCM audio", /* driver description */ |
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help, /* help */ |
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init, /* init */ |
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shutdown, /* shutdown */ |
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dummy, /* starttimer */ |
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dummy, /* flush */ |
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bufdump, /* bufdump */ |
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}; |
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static int setaudio(struct xmp_options *o) |
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{ |
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int flags; |
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int gain = 128; |
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int bsize = 32 * 1024; |
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int port = AUDIO_OUT_SPEAKER; |
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struct audio_gains agains; |
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struct audio_describe adescribe; |
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char *token, **parm; |
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int i; |
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parm_init(); |
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chkparm1("gain", gain = strtoul(token, NULL, 0)); |
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chkparm1("buffer", bsize = strtoul(token, NULL, 0)); |
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chkparm1("port", port = (int)*token) |
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parm_end(); |
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switch (port) { |
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case 'h': |
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port = AUDIO_OUT_HEADPHONE; |
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break; |
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case 'l': |
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port = AUDIO_OUT_LINE; |
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break; |
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default: |
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port = AUDIO_OUT_SPEAKER; |
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} |
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if ((flags = fcntl(audio_fd, F_GETFL, 0)) < 0) |
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return XMP_ERR_DINIT; |
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flags |= O_NDELAY; |
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if ((flags = fcntl(audio_fd, F_SETFL, flags)) < 0) |
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return XMP_ERR_DINIT; |
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if (ioctl(audio_fd, AUDIO_SET_DATA_FORMAT, AUDIO_FORMAT_LINEAR16BIT) == |
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-1) |
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return XMP_ERR_DINIT; |
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if (ioctl(audio_fd, AUDIO_SET_CHANNELS, |
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o->outfmt & XMP_FORMAT_MONO ? 1 : 2) == -1) { |
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o->outfmt ^= XMP_FORMAT_MONO; |
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if (ioctl(audio_fd, AUDIO_SET_CHANNELS, |
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o->outfmt & XMP_FORMAT_MONO ? 1 : 2) == -1) |
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return XMP_ERR_DINIT; |
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} |
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ioctl(audio_fd, AUDIO_SET_OUTPUT, port); |
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for (i = 0; ioctl(audio_fd, AUDIO_SET_SAMPLE_RATE, o->freq) == -1; i++) |
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if ((o->freq = srate[i]) == 0) |
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return XMP_ERR_DINIT; |
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if (ioctl(audio_fd, AUDIO_DESCRIBE, &adescribe) == -1) |
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return XMP_ERR_DINIT; |
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if (ioctl(audio_fd, AUDIO_GET_GAINS, &agains) == -1) |
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return XMP_ERR_DINIT; |
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agains.transmit_gain = adescribe.min_transmit_gain + |
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(adescribe.max_transmit_gain - adescribe.min_transmit_gain) * |
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gain / 256; |
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if (ioctl(audio_fd, AUDIO_SET_GAINS, &agains) == -1) |
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return XMP_ERR_DINIT; |
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ioctl(audio_fd, AUDIO_SET_TXBUFSIZE, bsize); |
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return 0; |
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} |
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static int init(struct context_data *ctx) |
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{ |
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if ((audio_fd = open("/dev/audio", O_WRONLY)) == -1) |
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return XMP_ERR_DINIT; |
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if (setaudio(ctl) != 0) |
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return XMP_ERR_DINIT; |
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return 0; |
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} |
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/* Build and write one tick (one PAL frame or 1/50 s in standard vblank |
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* timed mods) of audio data to the output device. |
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*/ |
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static void bufdump(struct context_data *ctx, void *b, int i) |
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{ |
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int j; |
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while (i) { |
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if ((j = write(audio_fd, b, i)) > 0) { |
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i -= j; |
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(char *)b += j; |
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} else |
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break; |
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} |
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} |
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static void shutdown(struct context_data *ctx) |
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{ |
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close(audio_fd); |
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}
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