« back to all changes in this revision
Viewing changes to wmlib/plat_irix.c
- browse files at revision 1
- compare with another revision
- download diff
- download tarball
- view history from revision 1
- Committer: Package Import Robot
- Author(s): Philip Muškovac
- Date: 2012-05-26 15:25:35 UTC
- Revision ID: package-import@ubuntu.com-20120526152535-60v997qsp1solymv
Tags: upstream-4.8.80a
Import upstream version 4.8.80a
- files added:
- wmlib
- wmlib/audio
- wmlib/include
added
removed
wmlib/plat_irix.c
1
/*
2
* This file is part of WorkMan, the civilized CD player library
3
* Copyright (C) 1991-1997 by Steven Grimm <koreth@midwinter.com>
4
* Copyright (C) by Dirk Försterling <milliByte@DeathsDoor.com>
5
*
6
* This library is free software; you can redistribute it and/or
7
* modify it under the terms of the GNU Library General Public
8
* License as published by the Free Software Foundation; either
9
* version 2 of the License, or (at your option) any later version.
10
*
11
* This library is distributed in the hope that it will be useful,
12
* but WITHOUT ANY WARRANTY; without even the implied warranty of
13
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14
* Library General Public License for more details.
15
*
16
* You should have received a copy of the GNU Library General Public
17
* License along with this library; if not, write to the Free
18
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19
*
20
*
21
* IRIX specific.
22
*
23
* Taken from the kscd distribution
24
*
25
* Paul Kendall
26
* paul@orion.co.nz, or
27
* paul@kcbbs.gen.nz
28
*/
29
30
#if defined(sgi) || defined(__sgi)
31
32
#include "include/wm_config.h"
33
34
/*
35
* Yes, it was designed for WorkMan 1.4b3
36
* Because I did start over from 1.3a, I disable it here.
37
* There is no guarantee of getting working code by defining
38
* CDDA yourself.
39
*
40
*/
41
#undef CDDA
42
/*#define CDDA*/
43
44
#include <sys/types.h>
45
#include <sys/time.h>
46
#include <stdio.h>
47
#include <ctype.h>
48
#include <string.h>
49
#include <fcntl.h>
50
#include <stdlib.h>
51
#include <unistd.h>
52
#include <signal.h>
53
#include <sigfpe.h>
54
#include <dmedia/cdaudio.h>
55
#include <dmedia/audio.h>
56
#include <errno.h>
57
58
#include "include/wm_struct.h"
59
#include "include/wm_cdtext.h"
60
61
#define WM_MSG_CLASS WM_MSG_CLASS_PLATFORM
62
63
void *malloc();
64
char *strchr();
65
66
int min_volume = 0;
67
int max_volume = 255;
68
69
#ifdef CDDA
70
static int playing = STOPPED;
71
static CDPLAYER *icd;
72
static CDPARSER *icdp;
73
static CDFRAME cdbuf[12];
74
static ALport audioport;
75
static ALconfig aconfig;
76
static struct itimerval audiotimer = { {0,0}, {0,25000} };
77
static int cdtrack=0;
78
static int cdframe=0;
79
static int cdstopframe=0;
80
81
/*
82
* Platform specific internal functions for CDDA
83
*/
84
void
85
cbprognum(void *arg, CDDATATYPES type, CDPROGNUM* prognum)
86
{
87
cdtrack = prognum->value;
88
} /* cbprognum() */
89
90
void
91
cbabstime(void *arg, CDDATATYPES type, struct cdtimecode* atime)
92
{
93
cdframe = CDtctoframe(atime);
94
if( cdframe == cdstopframe )
95
playing = STOPPED;
96
} /* cbabstime() */
97
98
void
99
cbplayaudio(void *arg, CDDATATYPES type, short* audio)
100
{
101
if(playing != PLAYING) return;
102
ALwritesamps(audioport, audio, CDDA_NUMSAMPLES);
103
} /* cbplayaudio() */
104
105
static void
106
alarmsignal()
107
{
108
int n, i;
109
if(playing != PLAYING) return;
110
if( ALgetfilled(audioport) < CDDA_NUMSAMPLES*8 )
111
{
112
/* Only get more samples and play them if we're getting low
113
* this ensures that the CD stays close to the sound
114
*/
115
n = CDreadda(icd, cdbuf, 12);
116
if( n == 0 ) return;
117
for( i=0 ; i<12 ; i++ )
118
CDparseframe(icdp, &cdbuf[i]);
119
}
120
signal(SIGALRM, alarmsignal);
121
setitimer(ITIMER_REAL, &audiotimer, NULL);
122
} /* alarmsignal() */
123
#endif
124
125
/*--------------------------------------------------------*
126
* Initialize the drive. A no-op for the generic driver.
127
*--------------------------------------------------------*/
128
int
129
gen_init( struct wm_drive *d )
130
{
131
#ifdef CDDA
132
long Param[4];
133
/* Set the audio rate to 44100Hz 16bit 2s-comp stereo */
134
aconfig = ALnewconfig();
135
ALsetwidth(aconfig, AL_SAMPLE_16);
136
ALsetsampfmt(aconfig, AL_SAMPFMT_TWOSCOMP);
137
ALsetchannels(aconfig, 2);
138
Param[0] = AL_OUTPUT_RATE; Param[1] = AL_RATE_44100;
139
Param[2] = AL_CHANNEL_MODE; Param[3] = AL_STEREO;
140
ALsetparams(AL_DEFAULT_DEVICE, Param, 4);
141
audioport = ALopenport("KDE KSCD Audio", "w", aconfig);
142
143
/* setup cdparser */
144
icdp = CDcreateparser();
145
CDaddcallback(icdp, cd_audio, (CDCALLBACKFUNC)cbplayaudio, 0);
146
CDaddcallback(icdp, cd_pnum, (CDCALLBACKFUNC)cbprognum, 0);
147
CDaddcallback(icdp, cd_atime, (CDCALLBACKFUNC)cbabstime, 0);
148
149
/* Lets handle those floating point exceptions expeditiously. */
150
sigfpe_[_UNDERFL].repls = _ZERO;
151
handle_sigfpes(_ON, _EN_UNDERFL, NULL, _ABORT_ON_ERROR, NULL);
152
#endif
153
return 0;
154
} /* gen_init() */
155
156
/*-------------------------------------------------------------*
157
* Open the CD and figure out which kind of drive is attached.
158
*-------------------------------------------------------------*/
159
int
160
gen_open( struct wm_drive *d )
161
{
162
CDSTATUS s;
163
164
if (d->fd < 0) /* Device already open? */
165
{
166
d->daux = CDopen(d->cd_device, "r");
167
if (d->daux == 0) {
168
return -6;
169
}
170
171
d->fd = 1;
172
#ifdef CDDA
173
icd = d->daux;
174
#endif
175
} else {
176
wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "gen_open(): [device is open (fd=%d)]\n", d->fd);
177
}
178
179
CDgetstatus(d->daux, &s);
180
if( s.state == CD_NODISC || s.state == CD_ERROR )
181
return 1;
182
183
return 0;
184
} /* gen_open() */
185
186
/*----------------------------------*
187
* Send a SCSI command out the bus.
188
*----------------------------------*/
189
int
190
gen_scsi( struct wm_drive *d, unsigned char *xcdb, int cdblen,
191
char *retbuf, int retbuflen, int getreply)
192
{
193
return -1;
194
} /* gen_scsi() */
195
196
int
197
gen_close( struct wm_drive *d )
198
{
199
if(d->fd != -1) {
200
wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "closing the device\n");
201
close(d->fd);
202
d->fd = -1;
203
}
204
return 0;
205
}
206
207
/*--------------------------------------------------------------------------*
208
* Get the current status of the drive: the current play mode, the absolute
209
* position from start of disc (in frames), and the current track and index
210
* numbers if the CD is playing or paused.
211
*--------------------------------------------------------------------------*/
212
int
213
gen_get_drive_status( struct wm_drive *d, int oldmode,
214
int *mode, int *pos, int *track,
215
int *index )
216
{
217
#ifdef CDDA
218
*mode = playing;
219
*track = cdtrack;
220
*pos = cdframe;
221
*index = 0;
222
#else
223
CDSTATUS s;
224
if( CDgetstatus(d->daux, &s)==0 )
225
return -1;
226
*pos = CDmsftoframe(s.min,s.sec,s.frame);
227
*track = s.track;
228
*index = 0;
229
switch( s.state )
230
{
231
case CD_READY: *mode = WM_CDM_STOPPED;
232
break;
233
case CD_STILL:
234
case CD_PAUSED: *mode = WM_CDM_PAUSED;
235
break;
236
case CD_PLAYING: *mode = WM_CDM_PLAYING;
237
break;
238
default: *mode = WM_CDM_UNKNOWN;
239
}
240
#endif
241
return 0;
242
} /* gen_get_drive_status() */
243
244
/*-------------------------------------*
245
* Get the number of tracks on the CD.
246
*-------------------------------------*/
247
int
248
gen_get_trackcount( struct wm_drive *d, int *tracks )
249
{
250
CDSTATUS s;
251
if( CDgetstatus(d->daux, &s)==0 )
252
return -1;
253
*tracks = s.last;
254
return 0;
255
} /* gen_get_trackcount() */
256
257
/*---------------------------------------------------------*
258
* Get the start time and mode (data or audio) of a track.
259
*---------------------------------------------------------*/
260
int
261
gen_get_trackinfo( struct wm_drive *d, int track, int *data, int *startframe)
262
{
263
CDTRACKINFO i;
264
int ret = CDgettrackinfo(d->daux, track, &i);
265
if( ret == 0 )
266
return -1;
267
*data = 0;
268
*startframe = CDmsftoframe(i.start_min,i.start_sec,i.start_frame);
269
return 0;
270
} /* gen_get_trackinfo() */
271
272
/*-------------------------------------*
273
* Get the number of frames on the CD.
274
*-------------------------------------*/
275
int
276
gen_get_cdlen( struct wm_drive *d, int *frames )
277
{
278
CDSTATUS s;
279
if( CDgetstatus(d->daux, &s)==0 )
280
return -1;
281
*frames = CDmsftoframe(s.total_min,s.total_sec,s.total_frame);
282
return 0;
283
} /* gen_get_cdlen() */
284
285
/*------------------------------------------------------------*
286
* Play the CD from one position to another (both in frames.)
287
*------------------------------------------------------------*/
288
int
289
gen_play( struct wm_drive *d, int start, int end )
290
{
291
#ifdef CDDA
292
int m, s, f;
293
CDframetomsf(start, &m, &s, &f);
294
CDseek(icd, m, s, f);
295
cdstopframe = end;
296
playing = PLAYING;
297
signal(SIGALRM, alarmsignal);
298
setitimer(ITIMER_REAL, &audiotimer, NULL);
299
#else
300
int m, s, f;
301
CDframetomsf(start, &m, &s, &f);
302
CDplayabs(d->daux, m, s, f, 1);
303
#endif
304
return 0;
305
} /* gen_play() */
306
307
/*---------------*
308
* Pause the CD.
309
*---------------*/
310
int
311
gen_pause( struct wm_drive *d )
312
{
313
#ifdef CDDA
314
playing = WM_CDM_PAUSED;
315
#else
316
CDSTATUS s;
317
if( CDgetstatus(d->daux, &s)==0 )
318
return -1;
319
if(s.state == CD_PLAYING)
320
CDtogglepause(d->daux);
321
#endif
322
return 0;
323
} /* gen_pause() */
324
325
/*-------------------------------------------------*
326
* Resume playing the CD (assuming it was paused.)
327
*-------------------------------------------------*/
328
int
329
gen_resume( struct wm_drive *d )
330
{
331
#ifdef CDDA
332
playing = WM_CDM_PLAYING;
333
signal(SIGALRM, alarmsignal);
334
setitimer(ITIMER_REAL, &audiotimer, NULL);
335
#else
336
CDSTATUS s;
337
if( CDgetstatus(d->daux, &s)==0 )
338
return -1;
339
if(s.state == CD_PAUSED)
340
CDtogglepause(d->daux);
341
#endif
342
return 0;
343
} /* gen_resume() */
344
345
/*--------------*
346
* Stop the CD.
347
*--------------*/
348
int
349
gen_stop( struct wm_drive *d )
350
{
351
#ifdef CDDA
352
playing = WM_CDM_STOPPED;
353
#else
354
CDstop(d->daux);
355
#endif
356
return 0;
357
} /* gen_stop() */
358
359
/*----------------------------------------*
360
* Eject the current CD, if there is one.
361
*----------------------------------------*/
362
int
363
gen_eject( struct wm_drive *d )
364
{
365
#ifdef CDDA
366
playing = WM_CDM_STOPPED;
367
#endif
368
CDeject(d->daux);
369
return 0;
370
} /* gen_eject() */
371
372
/*----------------------------------------*
373
* Close the CD tray
374
*
375
* Please edit and send changes to
376
* milliByte@Deathsdoor.com
377
*----------------------------------------*/
378
379
int
380
gen_closetray(struct wm_drive *d)
381
{
382
return -1;
383
} /* gen_closetray() */
384
385
/*---------------------------------------------------------------------*
386
* Set the volume level for the left and right channels. Their values
387
* range from 0 to 100.
388
*---------------------------------------------------------------------*/
389
int
390
gen_set_volume( struct wm_drive *d, int left, int right )
391
{
392
long Param[4];
393
Param[0] = AL_LEFT_SPEAKER_GAIN; Param[1] = left*255/100;
394
Param[2] = AL_RIGHT_SPEAKER_GAIN; Param[3] = right*255/100;
395
ALsetparams(AL_DEFAULT_DEVICE, Param, 4);
396
return 0;
397
} /* gen_set_volume() */
398
399
/*---------------------------------------------------------------------*
400
* Read the initial volume from the drive, if available. Each channel
401
* ranges from 0 to 100, with -1 indicating data not available.
402
*---------------------------------------------------------------------*/
403
int
404
gen_get_volume( struct wm_drive *d, int *left, int *right )
405
{
406
long Param[4];
407
Param[0] = AL_LEFT_SPEAKER_GAIN; Param[1] = 0;
408
Param[2] = AL_RIGHT_SPEAKER_GAIN; Param[3] = 0;
409
ALgetparams(AL_DEFAULT_DEVICE, Param, 4);
410
*left = Param[1] * 100 / 255;
411
*right = Param[3] * 100 / 255;
412
return 0;
413
} /* gen_get_volume() */
414
415
#endif
416
Loggerhead is a web-based interface for Breezy
Version: 2.0.1