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author | Franklin Wei <git@fwei.tk> | 2017-01-21 15:18:31 -0500 |
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committer | Franklin Wei <git@fwei.tk> | 2017-12-23 21:01:26 -0500 |
commit | a855d6202536ff28e5aae4f22a0f31d8f5b325d0 (patch) | |
tree | 8c75f224dd64ed360505afa8843d016b0d75000b /apps/plugins/sdl/src/cdrom/macosx/SDL_syscdrom.c | |
parent | 01c6dcf6c7b9bb1ad2fa0450f99bacc5f3d3e04b (diff) | |
download | rockbox-a855d6202536ff28e5aae4f22a0f31d8f5b325d0.tar.gz rockbox-a855d6202536ff28e5aae4f22a0f31d8f5b325d0.zip |
Port of Duke Nukem 3D
This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL
for Rockbox.
Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9
Diffstat (limited to 'apps/plugins/sdl/src/cdrom/macosx/SDL_syscdrom.c')
-rw-r--r-- | apps/plugins/sdl/src/cdrom/macosx/SDL_syscdrom.c | 514 |
1 files changed, 514 insertions, 0 deletions
diff --git a/apps/plugins/sdl/src/cdrom/macosx/SDL_syscdrom.c b/apps/plugins/sdl/src/cdrom/macosx/SDL_syscdrom.c new file mode 100644 index 0000000000..5018750222 --- /dev/null +++ b/apps/plugins/sdl/src/cdrom/macosx/SDL_syscdrom.c | |||
@@ -0,0 +1,514 @@ | |||
1 | /* | ||
2 | SDL - Simple DirectMedia Layer | ||
3 | Copyright (C) 1997-2012 Sam Lantinga | ||
4 | |||
5 | This library is free software; you can redistribute it and/or | ||
6 | modify it under the terms of the GNU Lesser General Public | ||
7 | License as published by the Free Software Foundation; either | ||
8 | version 2.1 of the License, or (at your option) any later version. | ||
9 | |||
10 | This library is distributed in the hope that it will be useful, | ||
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Lesser General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Lesser General Public | ||
16 | License along with this library; if not, write to the Free Software | ||
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
18 | |||
19 | Sam Lantinga | ||
20 | slouken@libsdl.org | ||
21 | */ | ||
22 | #include "SDL_config.h" | ||
23 | |||
24 | #ifdef SDL_CDROM_MACOSX | ||
25 | |||
26 | #include "SDL_syscdrom_c.h" | ||
27 | |||
28 | #pragma mark -- Globals -- | ||
29 | |||
30 | static FSRef** tracks; | ||
31 | static FSVolumeRefNum* volumes; | ||
32 | static CDstatus status; | ||
33 | static int nextTrackFrame; | ||
34 | static int nextTrackFramesRemaining; | ||
35 | static int fakeCD; | ||
36 | static int currentTrack; | ||
37 | static int didReadTOC; | ||
38 | static int cacheTOCNumTracks; | ||
39 | static int currentDrive; /* Only allow 1 drive in use at a time */ | ||
40 | |||
41 | #pragma mark -- Prototypes -- | ||
42 | |||
43 | static const char *SDL_SYS_CDName (int drive); | ||
44 | static int SDL_SYS_CDOpen (int drive); | ||
45 | static int SDL_SYS_CDGetTOC (SDL_CD *cdrom); | ||
46 | static CDstatus SDL_SYS_CDStatus (SDL_CD *cdrom, int *position); | ||
47 | static int SDL_SYS_CDPlay (SDL_CD *cdrom, int start, int length); | ||
48 | static int SDL_SYS_CDPause (SDL_CD *cdrom); | ||
49 | static int SDL_SYS_CDResume (SDL_CD *cdrom); | ||
50 | static int SDL_SYS_CDStop (SDL_CD *cdrom); | ||
51 | static int SDL_SYS_CDEject (SDL_CD *cdrom); | ||
52 | static void SDL_SYS_CDClose (SDL_CD *cdrom); | ||
53 | |||
54 | #pragma mark -- Helper Functions -- | ||
55 | |||
56 | /* Read a list of tracks from the volume */ | ||
57 | static int LoadTracks (SDL_CD *cdrom) | ||
58 | { | ||
59 | /* Check if tracks are already loaded */ | ||
60 | if ( tracks[cdrom->id] != NULL ) | ||
61 | return 0; | ||
62 | |||
63 | /* Allocate memory for tracks */ | ||
64 | tracks[cdrom->id] = (FSRef*) SDL_calloc (1, sizeof(**tracks) * cdrom->numtracks); | ||
65 | if (tracks[cdrom->id] == NULL) { | ||
66 | SDL_OutOfMemory (); | ||
67 | return -1; | ||
68 | } | ||
69 | |||
70 | /* Load tracks */ | ||
71 | if (ListTrackFiles (volumes[cdrom->id], tracks[cdrom->id], cdrom->numtracks) < 0) | ||
72 | return -1; | ||
73 | |||
74 | return 0; | ||
75 | } | ||
76 | |||
77 | /* Find a file for a given start frame and length */ | ||
78 | static FSRef* GetFileForOffset (SDL_CD *cdrom, int start, int length, int *outStartFrame, int *outStopFrame) | ||
79 | { | ||
80 | int i; | ||
81 | |||
82 | for (i = 0; i < cdrom->numtracks; i++) { | ||
83 | |||
84 | if (cdrom->track[i].offset <= start && | ||
85 | start < (cdrom->track[i].offset + cdrom->track[i].length)) | ||
86 | break; | ||
87 | } | ||
88 | |||
89 | if (i == cdrom->numtracks) | ||
90 | return NULL; | ||
91 | |||
92 | currentTrack = i; | ||
93 | |||
94 | *outStartFrame = start - cdrom->track[i].offset; | ||
95 | |||
96 | if ((*outStartFrame + length) < cdrom->track[i].length) { | ||
97 | *outStopFrame = *outStartFrame + length; | ||
98 | length = 0; | ||
99 | nextTrackFrame = -1; | ||
100 | nextTrackFramesRemaining = -1; | ||
101 | } | ||
102 | else { | ||
103 | *outStopFrame = -1; | ||
104 | length -= cdrom->track[i].length - *outStartFrame; | ||
105 | nextTrackFrame = cdrom->track[i+1].offset; | ||
106 | nextTrackFramesRemaining = length; | ||
107 | } | ||
108 | |||
109 | return &tracks[cdrom->id][i]; | ||
110 | } | ||
111 | |||
112 | /* Setup another file for playback, or stop playback (called from another thread) */ | ||
113 | static void CompletionProc (SDL_CD *cdrom) | ||
114 | { | ||
115 | |||
116 | Lock (); | ||
117 | |||
118 | if (nextTrackFrame > 0 && nextTrackFramesRemaining > 0) { | ||
119 | |||
120 | /* Load the next file to play */ | ||
121 | int startFrame, stopFrame; | ||
122 | FSRef *file; | ||
123 | |||
124 | PauseFile (); | ||
125 | ReleaseFile (); | ||
126 | |||
127 | file = GetFileForOffset (cdrom, nextTrackFrame, | ||
128 | nextTrackFramesRemaining, &startFrame, &stopFrame); | ||
129 | |||
130 | if (file == NULL) { | ||
131 | status = CD_STOPPED; | ||
132 | Unlock (); | ||
133 | return; | ||
134 | } | ||
135 | |||
136 | LoadFile (file, startFrame, stopFrame); | ||
137 | |||
138 | SetCompletionProc (CompletionProc, cdrom); | ||
139 | |||
140 | PlayFile (); | ||
141 | } | ||
142 | else { | ||
143 | |||
144 | /* Release the current file */ | ||
145 | PauseFile (); | ||
146 | ReleaseFile (); | ||
147 | status = CD_STOPPED; | ||
148 | } | ||
149 | |||
150 | Unlock (); | ||
151 | } | ||
152 | |||
153 | |||
154 | #pragma mark -- Driver Functions -- | ||
155 | |||
156 | /* Initialize */ | ||
157 | int SDL_SYS_CDInit (void) | ||
158 | { | ||
159 | /* Initialize globals */ | ||
160 | volumes = NULL; | ||
161 | tracks = NULL; | ||
162 | status = CD_STOPPED; | ||
163 | nextTrackFrame = -1; | ||
164 | nextTrackFramesRemaining = -1; | ||
165 | fakeCD = SDL_FALSE; | ||
166 | currentTrack = -1; | ||
167 | didReadTOC = SDL_FALSE; | ||
168 | cacheTOCNumTracks = -1; | ||
169 | currentDrive = -1; | ||
170 | |||
171 | /* Fill in function pointers */ | ||
172 | SDL_CDcaps.Name = SDL_SYS_CDName; | ||
173 | SDL_CDcaps.Open = SDL_SYS_CDOpen; | ||
174 | SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC; | ||
175 | SDL_CDcaps.Status = SDL_SYS_CDStatus; | ||
176 | SDL_CDcaps.Play = SDL_SYS_CDPlay; | ||
177 | SDL_CDcaps.Pause = SDL_SYS_CDPause; | ||
178 | SDL_CDcaps.Resume = SDL_SYS_CDResume; | ||
179 | SDL_CDcaps.Stop = SDL_SYS_CDStop; | ||
180 | SDL_CDcaps.Eject = SDL_SYS_CDEject; | ||
181 | SDL_CDcaps.Close = SDL_SYS_CDClose; | ||
182 | |||
183 | /* | ||
184 | Read the list of "drives" | ||
185 | |||
186 | This is currently a hack that infers drives from | ||
187 | mounted audio CD volumes, rather than | ||
188 | actual CD-ROM devices - which means it may not | ||
189 | act as expected sometimes. | ||
190 | */ | ||
191 | |||
192 | /* Find out how many cd volumes are mounted */ | ||
193 | SDL_numcds = DetectAudioCDVolumes (NULL, 0); | ||
194 | |||
195 | /* | ||
196 | If there are no volumes, fake a cd device | ||
197 | so tray empty can be reported. | ||
198 | */ | ||
199 | if (SDL_numcds == 0) { | ||
200 | |||
201 | fakeCD = SDL_TRUE; | ||
202 | SDL_numcds = 1; | ||
203 | status = CD_TRAYEMPTY; | ||
204 | |||
205 | return 0; | ||
206 | } | ||
207 | |||
208 | /* Allocate space for volumes */ | ||
209 | volumes = (FSVolumeRefNum*) SDL_calloc (1, sizeof(*volumes) * SDL_numcds); | ||
210 | if (volumes == NULL) { | ||
211 | SDL_OutOfMemory (); | ||
212 | return -1; | ||
213 | } | ||
214 | |||
215 | /* Allocate space for tracks */ | ||
216 | tracks = (FSRef**) SDL_calloc (1, sizeof(*tracks) * (SDL_numcds + 1)); | ||
217 | if (tracks == NULL) { | ||
218 | SDL_OutOfMemory (); | ||
219 | return -1; | ||
220 | } | ||
221 | |||
222 | /* Mark the end of the tracks array */ | ||
223 | tracks[ SDL_numcds ] = (FSRef*)-1; | ||
224 | |||
225 | /* | ||
226 | Redetect, now save all volumes for later | ||
227 | Update SDL_numcds just in case it changed | ||
228 | */ | ||
229 | { | ||
230 | int numVolumes = SDL_numcds; | ||
231 | |||
232 | SDL_numcds = DetectAudioCDVolumes (volumes, numVolumes); | ||
233 | |||
234 | /* If more cds suddenly show up, ignore them */ | ||
235 | if (SDL_numcds > numVolumes) { | ||
236 | SDL_SetError ("Some CD's were added but they will be ignored"); | ||
237 | SDL_numcds = numVolumes; | ||
238 | } | ||
239 | } | ||
240 | |||
241 | return 0; | ||
242 | } | ||
243 | |||
244 | /* Shutdown and cleanup */ | ||
245 | void SDL_SYS_CDQuit(void) | ||
246 | { | ||
247 | ReleaseFile(); | ||
248 | |||
249 | if (volumes != NULL) | ||
250 | free (volumes); | ||
251 | |||
252 | if (tracks != NULL) { | ||
253 | |||
254 | FSRef **ptr; | ||
255 | for (ptr = tracks; *ptr != (FSRef*)-1; ptr++) | ||
256 | if (*ptr != NULL) | ||
257 | free (*ptr); | ||
258 | |||
259 | free (tracks); | ||
260 | } | ||
261 | } | ||
262 | |||
263 | /* Get the Unix disk name of the volume */ | ||
264 | static const char *SDL_SYS_CDName (int drive) | ||
265 | { | ||
266 | /* | ||
267 | * !!! FIXME: PBHGetVolParmsSync() is gone in 10.6, | ||
268 | * !!! FIXME: replaced with FSGetVolumeParms(), which | ||
269 | * !!! FIXME: isn't available before 10.5. :/ | ||
270 | */ | ||
271 | return "Mac OS X CD-ROM Device"; | ||
272 | |||
273 | #if 0 | ||
274 | OSStatus err = noErr; | ||
275 | HParamBlockRec pb; | ||
276 | GetVolParmsInfoBuffer volParmsInfo; | ||
277 | |||
278 | if (fakeCD) | ||
279 | return "Fake CD-ROM Device"; | ||
280 | |||
281 | pb.ioParam.ioNamePtr = NULL; | ||
282 | pb.ioParam.ioVRefNum = volumes[drive]; | ||
283 | pb.ioParam.ioBuffer = (Ptr)&volParmsInfo; | ||
284 | pb.ioParam.ioReqCount = (SInt32)sizeof(volParmsInfo); | ||
285 | err = PBHGetVolParmsSync(&pb); | ||
286 | |||
287 | if (err != noErr) { | ||
288 | SDL_SetError ("PBHGetVolParmsSync returned %d", err); | ||
289 | return NULL; | ||
290 | } | ||
291 | |||
292 | return volParmsInfo.vMDeviceID; | ||
293 | #endif | ||
294 | } | ||
295 | |||
296 | /* Open the "device" */ | ||
297 | static int SDL_SYS_CDOpen (int drive) | ||
298 | { | ||
299 | /* Only allow 1 device to be open */ | ||
300 | if (currentDrive >= 0) { | ||
301 | SDL_SetError ("Only one cdrom is supported"); | ||
302 | return -1; | ||
303 | } | ||
304 | else | ||
305 | currentDrive = drive; | ||
306 | |||
307 | return drive; | ||
308 | } | ||
309 | |||
310 | /* Get the table of contents */ | ||
311 | static int SDL_SYS_CDGetTOC (SDL_CD *cdrom) | ||
312 | { | ||
313 | if (fakeCD) { | ||
314 | SDL_SetError (kErrorFakeDevice); | ||
315 | return -1; | ||
316 | } | ||
317 | |||
318 | if (didReadTOC) { | ||
319 | cdrom->numtracks = cacheTOCNumTracks; | ||
320 | return 0; | ||
321 | } | ||
322 | |||
323 | |||
324 | ReadTOCData (volumes[cdrom->id], cdrom); | ||
325 | didReadTOC = SDL_TRUE; | ||
326 | cacheTOCNumTracks = cdrom->numtracks; | ||
327 | |||
328 | return 0; | ||
329 | } | ||
330 | |||
331 | /* Get CD-ROM status */ | ||
332 | static CDstatus SDL_SYS_CDStatus (SDL_CD *cdrom, int *position) | ||
333 | { | ||
334 | if (position) { | ||
335 | int trackFrame; | ||
336 | |||
337 | Lock (); | ||
338 | trackFrame = GetCurrentFrame (); | ||
339 | Unlock (); | ||
340 | |||
341 | *position = cdrom->track[currentTrack].offset + trackFrame; | ||
342 | } | ||
343 | |||
344 | return status; | ||
345 | } | ||
346 | |||
347 | /* Start playback */ | ||
348 | static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length) | ||
349 | { | ||
350 | int startFrame, stopFrame; | ||
351 | FSRef *ref; | ||
352 | |||
353 | if (fakeCD) { | ||
354 | SDL_SetError (kErrorFakeDevice); | ||
355 | return -1; | ||
356 | } | ||
357 | |||
358 | Lock(); | ||
359 | |||
360 | if (LoadTracks (cdrom) < 0) | ||
361 | return -2; | ||
362 | |||
363 | if (PauseFile () < 0) | ||
364 | return -3; | ||
365 | |||
366 | if (ReleaseFile () < 0) | ||
367 | return -4; | ||
368 | |||
369 | ref = GetFileForOffset (cdrom, start, length, &startFrame, &stopFrame); | ||
370 | if (ref == NULL) { | ||
371 | SDL_SetError ("SDL_SYS_CDPlay: No file for start=%d, length=%d", start, length); | ||
372 | return -5; | ||
373 | } | ||
374 | |||
375 | if (LoadFile (ref, startFrame, stopFrame) < 0) | ||
376 | return -6; | ||
377 | |||
378 | SetCompletionProc (CompletionProc, cdrom); | ||
379 | |||
380 | if (PlayFile () < 0) | ||
381 | return -7; | ||
382 | |||
383 | status = CD_PLAYING; | ||
384 | |||
385 | Unlock(); | ||
386 | |||
387 | return 0; | ||
388 | } | ||
389 | |||
390 | /* Pause playback */ | ||
391 | static int SDL_SYS_CDPause(SDL_CD *cdrom) | ||
392 | { | ||
393 | if (fakeCD) { | ||
394 | SDL_SetError (kErrorFakeDevice); | ||
395 | return -1; | ||
396 | } | ||
397 | |||
398 | Lock (); | ||
399 | |||
400 | if (PauseFile () < 0) { | ||
401 | Unlock (); | ||
402 | return -2; | ||
403 | } | ||
404 | |||
405 | status = CD_PAUSED; | ||
406 | |||
407 | Unlock (); | ||
408 | |||
409 | return 0; | ||
410 | } | ||
411 | |||
412 | /* Resume playback */ | ||
413 | static int SDL_SYS_CDResume(SDL_CD *cdrom) | ||
414 | { | ||
415 | if (fakeCD) { | ||
416 | SDL_SetError (kErrorFakeDevice); | ||
417 | return -1; | ||
418 | } | ||
419 | |||
420 | Lock (); | ||
421 | |||
422 | if (PlayFile () < 0) { | ||
423 | Unlock (); | ||
424 | return -2; | ||
425 | } | ||
426 | |||
427 | status = CD_PLAYING; | ||
428 | |||
429 | Unlock (); | ||
430 | |||
431 | return 0; | ||
432 | } | ||
433 | |||
434 | /* Stop playback */ | ||
435 | static int SDL_SYS_CDStop(SDL_CD *cdrom) | ||
436 | { | ||
437 | if (fakeCD) { | ||
438 | SDL_SetError (kErrorFakeDevice); | ||
439 | return -1; | ||
440 | } | ||
441 | |||
442 | Lock (); | ||
443 | |||
444 | if (PauseFile () < 0) { | ||
445 | Unlock (); | ||
446 | return -2; | ||
447 | } | ||
448 | |||
449 | if (ReleaseFile () < 0) { | ||
450 | Unlock (); | ||
451 | return -3; | ||
452 | } | ||
453 | |||
454 | status = CD_STOPPED; | ||
455 | |||
456 | Unlock (); | ||
457 | |||
458 | return 0; | ||
459 | } | ||
460 | |||
461 | /* Eject the CD-ROM (Unmount the volume) */ | ||
462 | static int SDL_SYS_CDEject(SDL_CD *cdrom) | ||
463 | { | ||
464 | OSStatus err; | ||
465 | pid_t dissenter; | ||
466 | |||
467 | if (fakeCD) { | ||
468 | SDL_SetError (kErrorFakeDevice); | ||
469 | return -1; | ||
470 | } | ||
471 | |||
472 | Lock (); | ||
473 | |||
474 | if (PauseFile () < 0) { | ||
475 | Unlock (); | ||
476 | return -2; | ||
477 | } | ||
478 | |||
479 | if (ReleaseFile () < 0) { | ||
480 | Unlock (); | ||
481 | return -3; | ||
482 | } | ||
483 | |||
484 | status = CD_STOPPED; | ||
485 | |||
486 | /* Eject the volume */ | ||
487 | err = FSEjectVolumeSync(volumes[cdrom->id], kNilOptions, &dissenter); | ||
488 | |||
489 | if (err != noErr) { | ||
490 | Unlock (); | ||
491 | SDL_SetError ("PBUnmountVol returned %d", err); | ||
492 | return -4; | ||
493 | } | ||
494 | |||
495 | status = CD_TRAYEMPTY; | ||
496 | |||
497 | /* Invalidate volume and track info */ | ||
498 | volumes[cdrom->id] = 0; | ||
499 | free (tracks[cdrom->id]); | ||
500 | tracks[cdrom->id] = NULL; | ||
501 | |||
502 | Unlock (); | ||
503 | |||
504 | return 0; | ||
505 | } | ||
506 | |||
507 | /* Close the CD-ROM */ | ||
508 | static void SDL_SYS_CDClose(SDL_CD *cdrom) | ||
509 | { | ||
510 | currentDrive = -1; | ||
511 | return; | ||
512 | } | ||
513 | |||
514 | #endif /* SDL_CDROM_MACOSX */ | ||