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ef79bbde P |
1 | /*************************************************************************** |
2 | * Copyright (C) 2007 PCSX-df Team * | |
3 | * Copyright (C) 2009 Wei Mingzhi * | |
4 | * * | |
5 | * This program is free software; you can redistribute it and/or modify * | |
6 | * it under the terms of the GNU General Public License as published by * | |
7 | * the Free Software Foundation; either version 2 of the License, or * | |
8 | * (at your option) any later version. * | |
9 | * * | |
10 | * This program 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 * | |
13 | * GNU General Public License for more details. * | |
14 | * * | |
15 | * You should have received a copy of the GNU General Public License * | |
16 | * along with this program; if not, write to the * | |
17 | * Free Software Foundation, Inc., * | |
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. * | |
19 | ***************************************************************************/ | |
20 | ||
21 | #include "psxcommon.h" | |
22 | #include "plugins.h" | |
23 | #include "cdrom.h" | |
24 | #include "cdriso.h" | |
ae4e7dc9 | 25 | #include "ppf.h" |
ef79bbde P |
26 | |
27 | #ifdef _WIN32 | |
28 | #include <process.h> | |
29 | #include <windows.h> | |
30 | #else | |
31 | #include <pthread.h> | |
32 | #include <sys/time.h> | |
33 | #endif | |
9a92bffb | 34 | #include <zlib.h> |
ef79bbde P |
35 | |
36 | static FILE *cdHandle = NULL; | |
37 | static FILE *cddaHandle = NULL; | |
38 | static FILE *subHandle = NULL; | |
39 | ||
40 | static boolean subChanMixed = FALSE; | |
41 | static boolean subChanRaw = FALSE; | |
8aa91443 | 42 | static boolean subChanMissing = FALSE; |
ef79bbde P |
43 | |
44 | static unsigned char cdbuffer[DATA_SIZE]; | |
45 | static unsigned char subbuffer[SUB_FRAMESIZE]; | |
46 | ||
47 | static unsigned char sndbuffer[CD_FRAMESIZE_RAW * 10]; | |
48 | ||
49 | #define CDDA_FRAMETIME (1000 * (sizeof(sndbuffer) / CD_FRAMESIZE_RAW) / 75) | |
50 | ||
51 | #ifdef _WIN32 | |
52 | static HANDLE threadid; | |
53 | #else | |
54 | static pthread_t threadid; | |
55 | #endif | |
56 | static unsigned int initial_offset = 0; | |
38b8102c | 57 | static boolean playing = FALSE; |
ef79bbde | 58 | static boolean cddaBigEndian = FALSE; |
9a92bffb | 59 | static unsigned int cdda_cur_sector; |
60 | static unsigned int cdda_start_sector; | |
8aa91443 | 61 | /* Frame offset into CD image where pregap data would be found if it was there. |
62 | * If a game seeks there we must *not* return subchannel data since it's | |
63 | * not in the CD image, so that cdrom code can fake subchannel data instead. | |
64 | * XXX: there could be multiple pregaps but PSX dumps only have one? */ | |
65 | static unsigned int pregapOffset; | |
ef79bbde | 66 | |
9a92bffb | 67 | // compressed image stuff |
68 | static struct { | |
69 | unsigned char buff_raw[16][CD_FRAMESIZE_RAW]; | |
70 | unsigned char buff_compressed[CD_FRAMESIZE_RAW * 16 + 100]; | |
71 | unsigned int *index_table; | |
72 | unsigned int index_len; | |
73 | unsigned int current_block; | |
74 | unsigned int sector_in_blk; | |
75 | } *compr_img; | |
76 | ||
77 | int (*cdimg_read_func)(FILE *f, void *dest, int sector, int offset); | |
78 | ||
ef79bbde P |
79 | char* CALLBACK CDR__getDriveLetter(void); |
80 | long CALLBACK CDR__configure(void); | |
81 | long CALLBACK CDR__test(void); | |
82 | void CALLBACK CDR__about(void); | |
83 | long CALLBACK CDR__setfilename(char *filename); | |
84 | long CALLBACK CDR__getStatus(struct CdrStat *stat); | |
85 | ||
19c03d80 | 86 | static void DecodeRawSubData(void); |
87 | ||
ef79bbde P |
88 | extern void *hCDRDriver; |
89 | ||
90 | struct trackinfo { | |
91 | enum {DATA, CDDA} type; | |
92 | char start[3]; // MSF-format | |
93 | char length[3]; // MSF-format | |
38b8102c | 94 | FILE *handle; // for multi-track images CDDA |
19c03d80 | 95 | int start_offset; // sector offset from start of above file |
ef79bbde P |
96 | }; |
97 | ||
98 | #define MAXTRACKS 100 /* How many tracks can a CD hold? */ | |
99 | ||
100 | static int numtracks = 0; | |
101 | static struct trackinfo ti[MAXTRACKS]; | |
102 | ||
103 | // get a sector from a msf-array | |
104 | static unsigned int msf2sec(char *msf) { | |
105 | return ((msf[0] * 60 + msf[1]) * 75) + msf[2]; | |
106 | } | |
107 | ||
108 | static void sec2msf(unsigned int s, char *msf) { | |
109 | msf[0] = s / 75 / 60; | |
110 | s = s - msf[0] * 75 * 60; | |
111 | msf[1] = s / 75; | |
112 | s = s - msf[1] * 75; | |
113 | msf[2] = s; | |
114 | } | |
115 | ||
116 | // divide a string of xx:yy:zz into m, s, f | |
117 | static void tok2msf(char *time, char *msf) { | |
118 | char *token; | |
119 | ||
120 | token = strtok(time, ":"); | |
121 | if (token) { | |
122 | msf[0] = atoi(token); | |
123 | } | |
124 | else { | |
125 | msf[0] = 0; | |
126 | } | |
127 | ||
128 | token = strtok(NULL, ":"); | |
129 | if (token) { | |
130 | msf[1] = atoi(token); | |
131 | } | |
132 | else { | |
133 | msf[1] = 0; | |
134 | } | |
135 | ||
136 | token = strtok(NULL, ":"); | |
137 | if (token) { | |
138 | msf[2] = atoi(token); | |
139 | } | |
140 | else { | |
141 | msf[2] = 0; | |
142 | } | |
143 | } | |
144 | ||
145 | #ifndef _WIN32 | |
146 | static long GetTickCount(void) { | |
147 | static time_t initial_time = 0; | |
148 | struct timeval now; | |
149 | ||
150 | gettimeofday(&now, NULL); | |
151 | ||
152 | if (initial_time == 0) { | |
153 | initial_time = now.tv_sec; | |
154 | } | |
155 | ||
156 | return (now.tv_sec - initial_time) * 1000L + now.tv_usec / 1000L; | |
157 | } | |
158 | #endif | |
159 | ||
160 | // this thread plays audio data | |
161 | #ifdef _WIN32 | |
162 | static void playthread(void *param) | |
163 | #else | |
164 | static void *playthread(void *param) | |
165 | #endif | |
166 | { | |
167 | long d, t, i, s; | |
168 | unsigned char tmp; | |
169 | ||
170 | t = GetTickCount(); | |
171 | ||
172 | while (playing) { | |
173 | d = t - (long)GetTickCount(); | |
174 | if (d <= 0) { | |
175 | d = 1; | |
176 | } | |
177 | else if (d > CDDA_FRAMETIME) { | |
178 | d = CDDA_FRAMETIME; | |
179 | } | |
180 | #ifdef _WIN32 | |
181 | Sleep(d); | |
182 | #else | |
183 | usleep(d * 1000); | |
184 | #endif | |
d4a1e87d | 185 | // HACK: stop feeding data while emu is paused |
186 | extern int stop; | |
187 | if (stop) { | |
188 | usleep(100000); | |
189 | continue; | |
190 | } | |
ef79bbde P |
191 | |
192 | t = GetTickCount() + CDDA_FRAMETIME; | |
193 | ||
9a92bffb | 194 | s = 0; |
195 | for (i = 0; i < sizeof(sndbuffer) / CD_FRAMESIZE_RAW; i++) { | |
196 | d = cdimg_read_func(cddaHandle, sndbuffer + s, cdda_cur_sector, 0); | |
197 | if (d < CD_FRAMESIZE_RAW) | |
198 | break; | |
ef79bbde | 199 | |
9a92bffb | 200 | s += d; |
201 | cdda_cur_sector++; | |
ef79bbde | 202 | } |
19c03d80 | 203 | |
9a92bffb | 204 | if (subHandle != NULL) { |
205 | fseek(subHandle, cdda_cur_sector * SUB_FRAMESIZE, SEEK_SET); | |
206 | fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); | |
19c03d80 | 207 | |
9a92bffb | 208 | if (subChanRaw) DecodeRawSubData(); |
ef79bbde P |
209 | } |
210 | ||
211 | if (s == 0) { | |
212 | playing = FALSE; | |
ef79bbde P |
213 | initial_offset = 0; |
214 | break; | |
215 | } | |
216 | ||
217 | if (!cdr.Muted && playing) { | |
218 | if (cddaBigEndian) { | |
219 | for (i = 0; i < s / 2; i++) { | |
220 | tmp = sndbuffer[i * 2]; | |
221 | sndbuffer[i * 2] = sndbuffer[i * 2 + 1]; | |
222 | sndbuffer[i * 2 + 1] = tmp; | |
223 | } | |
224 | } | |
225 | ||
226 | SPU_playCDDAchannel((short *)sndbuffer, s); | |
227 | } | |
ef79bbde P |
228 | } |
229 | ||
230 | #ifdef _WIN32 | |
231 | _endthread(); | |
232 | #else | |
233 | pthread_exit(0); | |
234 | return NULL; | |
235 | #endif | |
236 | } | |
237 | ||
238 | // stop the CDDA playback | |
239 | static void stopCDDA() { | |
240 | if (!playing) { | |
241 | return; | |
242 | } | |
243 | ||
244 | playing = FALSE; | |
245 | #ifdef _WIN32 | |
246 | WaitForSingleObject(threadid, INFINITE); | |
247 | #else | |
248 | pthread_join(threadid, NULL); | |
249 | #endif | |
ef79bbde P |
250 | } |
251 | ||
252 | // start the CDDA playback | |
9a92bffb | 253 | static void startCDDA(unsigned int sector) { |
ef79bbde | 254 | if (playing) { |
ef79bbde P |
255 | stopCDDA(); |
256 | } | |
257 | ||
9a92bffb | 258 | cdda_cur_sector = sector; |
ef79bbde P |
259 | playing = TRUE; |
260 | ||
261 | #ifdef _WIN32 | |
262 | threadid = (HANDLE)_beginthread(playthread, 0, NULL); | |
263 | #else | |
264 | pthread_create(&threadid, NULL, playthread, NULL); | |
265 | #endif | |
266 | } | |
267 | ||
268 | // this function tries to get the .toc file of the given .bin | |
269 | // the necessary data is put into the ti (trackinformation)-array | |
270 | static int parsetoc(const char *isofile) { | |
271 | char tocname[MAXPATHLEN]; | |
272 | FILE *fi; | |
273 | char linebuf[256], dummy[256], name[256]; | |
274 | char *token; | |
275 | char time[20], time2[20]; | |
19c03d80 | 276 | unsigned int t, sector_offs; |
ef79bbde P |
277 | |
278 | numtracks = 0; | |
279 | ||
280 | // copy name of the iso and change extension from .bin to .toc | |
281 | strncpy(tocname, isofile, sizeof(tocname)); | |
282 | tocname[MAXPATHLEN - 1] = '\0'; | |
283 | if (strlen(tocname) >= 4) { | |
284 | strcpy(tocname + strlen(tocname) - 4, ".toc"); | |
285 | } | |
286 | else { | |
287 | return -1; | |
288 | } | |
289 | ||
290 | if ((fi = fopen(tocname, "r")) == NULL) { | |
291 | // try changing extension to .cue (to satisfy some stupid tutorials) | |
292 | strcpy(tocname + strlen(tocname) - 4, ".cue"); | |
293 | if ((fi = fopen(tocname, "r")) == NULL) { | |
294 | // if filename is image.toc.bin, try removing .bin (for Brasero) | |
295 | strcpy(tocname, isofile); | |
296 | t = strlen(tocname); | |
297 | if (t >= 8 && strcmp(tocname + t - 8, ".toc.bin") == 0) { | |
298 | tocname[t - 4] = '\0'; | |
299 | if ((fi = fopen(tocname, "r")) == NULL) { | |
300 | return -1; | |
301 | } | |
302 | } | |
303 | else { | |
304 | return -1; | |
305 | } | |
306 | } | |
307 | } | |
308 | ||
309 | memset(&ti, 0, sizeof(ti)); | |
310 | cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio | |
311 | ||
19c03d80 | 312 | sector_offs = 2 * 75; |
313 | ||
ef79bbde P |
314 | // parse the .toc file |
315 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
316 | // search for tracks | |
317 | strncpy(dummy, linebuf, sizeof(linebuf)); | |
318 | token = strtok(dummy, " "); | |
319 | ||
320 | if (token == NULL) continue; | |
321 | ||
322 | if (!strcmp(token, "TRACK")) { | |
323 | // get type of track | |
324 | token = strtok(NULL, " "); | |
325 | numtracks++; | |
326 | ||
327 | if (!strncmp(token, "MODE2_RAW", 9)) { | |
328 | ti[numtracks].type = DATA; | |
329 | sec2msf(2 * 75, ti[numtracks].start); // assume data track on 0:2:0 | |
330 | ||
331 | // check if this image contains mixed subchannel data | |
332 | token = strtok(NULL, " "); | |
333 | if (token != NULL && !strncmp(token, "RW_RAW", 6)) { | |
334 | subChanMixed = TRUE; | |
335 | subChanRaw = TRUE; | |
336 | } | |
337 | } | |
338 | else if (!strncmp(token, "AUDIO", 5)) { | |
339 | ti[numtracks].type = CDDA; | |
340 | } | |
341 | } | |
342 | else if (!strcmp(token, "DATAFILE")) { | |
343 | if (ti[numtracks].type == CDDA) { | |
344 | sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2); | |
345 | t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0); | |
19c03d80 | 346 | ti[numtracks].start_offset = t; |
347 | t += sector_offs; | |
ef79bbde P |
348 | sec2msf(t, (char *)&ti[numtracks].start); |
349 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
350 | } | |
351 | else { | |
352 | sscanf(linebuf, "DATAFILE \"%[^\"]\" %8s", name, time); | |
353 | tok2msf((char *)&time, (char *)&ti[numtracks].length); | |
354 | } | |
355 | } | |
356 | else if (!strcmp(token, "FILE")) { | |
357 | sscanf(linebuf, "FILE \"%[^\"]\" #%d %8s %8s", name, &t, time, time2); | |
358 | tok2msf((char *)&time, (char *)&ti[numtracks].start); | |
359 | t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0); | |
19c03d80 | 360 | ti[numtracks].start_offset = t; |
361 | t += msf2sec(ti[numtracks].start) + sector_offs; | |
ef79bbde P |
362 | sec2msf(t, (char *)&ti[numtracks].start); |
363 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
364 | } | |
19c03d80 | 365 | else if (!strcmp(token, "ZERO")) { |
366 | sscanf(linebuf, "ZERO AUDIO RW_RAW %8s", time); | |
367 | tok2msf((char *)&time, dummy); | |
368 | sector_offs += msf2sec(dummy); | |
8aa91443 | 369 | if (numtracks > 1) { |
370 | t = ti[numtracks - 1].start_offset; | |
371 | pregapOffset = t + msf2sec(ti[numtracks - 1].length); | |
372 | } | |
19c03d80 | 373 | } |
ef79bbde P |
374 | } |
375 | ||
376 | fclose(fi); | |
377 | ||
378 | return 0; | |
379 | } | |
380 | ||
381 | // this function tries to get the .cue file of the given .bin | |
382 | // the necessary data is put into the ti (trackinformation)-array | |
383 | static int parsecue(const char *isofile) { | |
384 | char cuename[MAXPATHLEN]; | |
38b8102c | 385 | char filepath[MAXPATHLEN]; |
386 | char *incue_fname; | |
ef79bbde P |
387 | FILE *fi; |
388 | char *token; | |
389 | char time[20]; | |
390 | char *tmp; | |
19c03d80 | 391 | char linebuf[256], tmpb[256], dummy[256]; |
38b8102c | 392 | unsigned int incue_max_len; |
19c03d80 | 393 | unsigned int t, file_len, sector_offs; |
ef79bbde P |
394 | |
395 | numtracks = 0; | |
396 | ||
397 | // copy name of the iso and change extension from .bin to .cue | |
398 | strncpy(cuename, isofile, sizeof(cuename)); | |
399 | cuename[MAXPATHLEN - 1] = '\0'; | |
400 | if (strlen(cuename) >= 4) { | |
401 | strcpy(cuename + strlen(cuename) - 4, ".cue"); | |
402 | } | |
403 | else { | |
404 | return -1; | |
405 | } | |
406 | ||
407 | if ((fi = fopen(cuename, "r")) == NULL) { | |
408 | return -1; | |
409 | } | |
410 | ||
411 | // Some stupid tutorials wrongly tell users to use cdrdao to rip a | |
412 | // "bin/cue" image, which is in fact a "bin/toc" image. So let's check | |
413 | // that... | |
414 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
415 | if (!strncmp(linebuf, "CD_ROM_XA", 9)) { | |
416 | // Don't proceed further, as this is actually a .toc file rather | |
417 | // than a .cue file. | |
418 | fclose(fi); | |
419 | return parsetoc(isofile); | |
420 | } | |
421 | fseek(fi, 0, SEEK_SET); | |
422 | } | |
423 | ||
38b8102c | 424 | // build a path for files referenced in .cue |
425 | strncpy(filepath, cuename, sizeof(filepath)); | |
426 | tmp = strrchr(filepath, '/') + 1; | |
427 | if (tmp == NULL) | |
428 | tmp = strrchr(filepath, '\\') + 1; | |
429 | if (tmp == NULL) | |
430 | tmp = filepath; | |
431 | *tmp = 0; | |
432 | filepath[sizeof(filepath) - 1] = 0; | |
433 | incue_fname = tmp; | |
434 | incue_max_len = sizeof(filepath) - (tmp - filepath) - 1; | |
435 | ||
ef79bbde P |
436 | memset(&ti, 0, sizeof(ti)); |
437 | ||
19c03d80 | 438 | file_len = 0; |
439 | sector_offs = 2 * 75; | |
440 | ||
ef79bbde P |
441 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
442 | strncpy(dummy, linebuf, sizeof(linebuf)); | |
443 | token = strtok(dummy, " "); | |
444 | ||
445 | if (token == NULL) { | |
446 | continue; | |
447 | } | |
448 | ||
19c03d80 | 449 | if (!strcmp(token, "TRACK")) { |
ef79bbde P |
450 | numtracks++; |
451 | ||
452 | if (strstr(linebuf, "AUDIO") != NULL) { | |
453 | ti[numtracks].type = CDDA; | |
454 | } | |
455 | else if (strstr(linebuf, "MODE1/2352") != NULL || strstr(linebuf, "MODE2/2352") != NULL) { | |
456 | ti[numtracks].type = DATA; | |
457 | } | |
458 | } | |
459 | else if (!strcmp(token, "INDEX")) { | |
19c03d80 | 460 | sscanf(linebuf, " INDEX %02d %8s", &t, time); |
461 | tok2msf(time, (char *)&ti[numtracks].start); | |
ef79bbde | 462 | |
19c03d80 | 463 | t = msf2sec(ti[numtracks].start); |
464 | ti[numtracks].start_offset = t; | |
465 | t += sector_offs; | |
ef79bbde | 466 | sec2msf(t, ti[numtracks].start); |
19c03d80 | 467 | |
468 | // default track length to file length | |
469 | t = file_len - ti[numtracks].start_offset; | |
470 | sec2msf(t, ti[numtracks].length); | |
471 | ||
472 | if (numtracks > 1 && ti[numtracks].handle == NULL) { | |
473 | // this track uses the same file as the last, | |
474 | // start of this track is last track's end | |
475 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
476 | sec2msf(t, ti[numtracks - 1].length); | |
38b8102c | 477 | } |
8aa91443 | 478 | if (numtracks > 1 && pregapOffset == -1) |
479 | pregapOffset = ti[numtracks].start_offset; | |
19c03d80 | 480 | } |
481 | else if (!strcmp(token, "PREGAP")) { | |
482 | if (sscanf(linebuf, " PREGAP %8s", time) == 1) { | |
483 | tok2msf(time, dummy); | |
484 | sector_offs += msf2sec(dummy); | |
38b8102c | 485 | } |
8aa91443 | 486 | pregapOffset = -1; // mark to fill track start_offset |
19c03d80 | 487 | } |
488 | else if (!strcmp(token, "FILE")) { | |
489 | sscanf(linebuf, " FILE \"%[^\"]\"", tmpb); | |
490 | ||
491 | // absolute path? | |
492 | ti[numtracks + 1].handle = fopen(tmpb, "rb"); | |
493 | if (ti[numtracks + 1].handle == NULL) { | |
494 | // relative to .cue? | |
495 | tmp = strrchr(tmpb, '\\'); | |
496 | if (tmp == NULL) | |
497 | tmp = strrchr(tmpb, '/'); | |
38b8102c | 498 | if (tmp != NULL) |
19c03d80 | 499 | tmp++; |
500 | else | |
501 | tmp = tmpb; | |
502 | strncpy(incue_fname, tmp, incue_max_len); | |
503 | ti[numtracks + 1].handle = fopen(filepath, "rb"); | |
38b8102c | 504 | } |
ef79bbde | 505 | |
19c03d80 | 506 | // update global offset if this is not first file in this .cue |
507 | if (numtracks + 1 > 1) | |
508 | sector_offs += file_len; | |
509 | ||
510 | file_len = 0; | |
38b8102c | 511 | if (ti[numtracks + 1].handle == NULL) { |
19c03d80 | 512 | SysPrintf(_("\ncould not open: %s\n"), filepath); |
513 | continue; | |
38b8102c | 514 | } |
19c03d80 | 515 | fseek(ti[numtracks + 1].handle, 0, SEEK_END); |
516 | file_len = ftell(ti[numtracks + 1].handle) / 2352; | |
517 | ||
518 | if (numtracks == 0 && strlen(isofile) >= 4 && | |
519 | strcmp(isofile + strlen(isofile) - 4, ".cue") == 0) | |
520 | { | |
38b8102c | 521 | // user selected .cue as image file, use it's data track instead |
522 | fclose(cdHandle); | |
523 | cdHandle = fopen(filepath, "rb"); | |
ef79bbde P |
524 | } |
525 | } | |
526 | } | |
527 | ||
528 | fclose(fi); | |
529 | ||
ef79bbde P |
530 | return 0; |
531 | } | |
532 | ||
533 | // this function tries to get the .ccd file of the given .img | |
534 | // the necessary data is put into the ti (trackinformation)-array | |
535 | static int parseccd(const char *isofile) { | |
536 | char ccdname[MAXPATHLEN]; | |
537 | FILE *fi; | |
538 | char linebuf[256]; | |
539 | unsigned int t; | |
540 | ||
541 | numtracks = 0; | |
542 | ||
543 | // copy name of the iso and change extension from .img to .ccd | |
544 | strncpy(ccdname, isofile, sizeof(ccdname)); | |
545 | ccdname[MAXPATHLEN - 1] = '\0'; | |
546 | if (strlen(ccdname) >= 4) { | |
547 | strcpy(ccdname + strlen(ccdname) - 4, ".ccd"); | |
548 | } | |
549 | else { | |
550 | return -1; | |
551 | } | |
552 | ||
553 | if ((fi = fopen(ccdname, "r")) == NULL) { | |
554 | return -1; | |
555 | } | |
556 | ||
557 | memset(&ti, 0, sizeof(ti)); | |
558 | ||
559 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
560 | if (!strncmp(linebuf, "[TRACK", 6)){ | |
561 | numtracks++; | |
562 | } | |
563 | else if (!strncmp(linebuf, "MODE=", 5)) { | |
564 | sscanf(linebuf, "MODE=%d", &t); | |
565 | ti[numtracks].type = ((t == 0) ? CDDA : DATA); | |
566 | } | |
567 | else if (!strncmp(linebuf, "INDEX 1=", 8)) { | |
568 | sscanf(linebuf, "INDEX 1=%d", &t); | |
569 | sec2msf(t + 2 * 75, ti[numtracks].start); | |
19c03d80 | 570 | ti[numtracks].start_offset = t; |
ef79bbde P |
571 | |
572 | // If we've already seen another track, this is its end | |
573 | if (numtracks > 1) { | |
574 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
575 | sec2msf(t, ti[numtracks - 1].length); | |
576 | } | |
577 | } | |
578 | } | |
579 | ||
580 | fclose(fi); | |
581 | ||
582 | // Fill out the last track's end based on size | |
583 | if (numtracks >= 1) { | |
584 | fseek(cdHandle, 0, SEEK_END); | |
585 | t = ftell(cdHandle) / 2352 - msf2sec(ti[numtracks].start) + 2 * 75; | |
586 | sec2msf(t, ti[numtracks].length); | |
587 | } | |
588 | ||
589 | return 0; | |
590 | } | |
591 | ||
592 | // this function tries to get the .mds file of the given .mdf | |
593 | // the necessary data is put into the ti (trackinformation)-array | |
594 | static int parsemds(const char *isofile) { | |
595 | char mdsname[MAXPATHLEN]; | |
596 | FILE *fi; | |
597 | unsigned int offset, extra_offset, l, i; | |
598 | unsigned short s; | |
599 | ||
600 | numtracks = 0; | |
601 | ||
602 | // copy name of the iso and change extension from .mdf to .mds | |
603 | strncpy(mdsname, isofile, sizeof(mdsname)); | |
604 | mdsname[MAXPATHLEN - 1] = '\0'; | |
605 | if (strlen(mdsname) >= 4) { | |
606 | strcpy(mdsname + strlen(mdsname) - 4, ".mds"); | |
607 | } | |
608 | else { | |
609 | return -1; | |
610 | } | |
611 | ||
612 | if ((fi = fopen(mdsname, "rb")) == NULL) { | |
613 | return -1; | |
614 | } | |
615 | ||
616 | memset(&ti, 0, sizeof(ti)); | |
617 | ||
618 | // check if it's a valid mds file | |
619 | fread(&i, 1, sizeof(unsigned int), fi); | |
620 | i = SWAP32(i); | |
621 | if (i != 0x4944454D) { | |
622 | // not an valid mds file | |
623 | fclose(fi); | |
624 | return -1; | |
625 | } | |
626 | ||
627 | // get offset to session block | |
628 | fseek(fi, 0x50, SEEK_SET); | |
629 | fread(&offset, 1, sizeof(unsigned int), fi); | |
630 | offset = SWAP32(offset); | |
631 | ||
632 | // get total number of tracks | |
633 | offset += 14; | |
634 | fseek(fi, offset, SEEK_SET); | |
635 | fread(&s, 1, sizeof(unsigned short), fi); | |
636 | s = SWAP16(s); | |
637 | numtracks = s; | |
638 | ||
639 | // get offset to track blocks | |
640 | fseek(fi, 4, SEEK_CUR); | |
641 | fread(&offset, 1, sizeof(unsigned int), fi); | |
642 | offset = SWAP32(offset); | |
643 | ||
644 | // skip lead-in data | |
645 | while (1) { | |
646 | fseek(fi, offset + 4, SEEK_SET); | |
647 | if (fgetc(fi) < 0xA0) { | |
648 | break; | |
649 | } | |
650 | offset += 0x50; | |
651 | } | |
652 | ||
653 | // check if the image contains mixed subchannel data | |
654 | fseek(fi, offset + 1, SEEK_SET); | |
655 | subChanMixed = (fgetc(fi) ? TRUE : FALSE); | |
656 | ||
657 | // read track data | |
658 | for (i = 1; i <= numtracks; i++) { | |
659 | fseek(fi, offset, SEEK_SET); | |
660 | ||
661 | // get the track type | |
662 | ti[i].type = ((fgetc(fi) == 0xA9) ? CDDA : DATA); | |
663 | fseek(fi, 8, SEEK_CUR); | |
664 | ||
665 | // get the track starting point | |
666 | ti[i].start[0] = fgetc(fi); | |
667 | ti[i].start[1] = fgetc(fi); | |
668 | ti[i].start[2] = fgetc(fi); | |
669 | ||
ef79bbde P |
670 | fread(&extra_offset, 1, sizeof(unsigned int), fi); |
671 | extra_offset = SWAP32(extra_offset); | |
672 | ||
19c03d80 | 673 | // get track start offset (in .mdf) |
674 | fseek(fi, offset + 0x28, SEEK_SET); | |
675 | fread(&l, 1, sizeof(unsigned int), fi); | |
676 | l = SWAP32(l); | |
677 | ti[i].start_offset = l / CD_FRAMESIZE_RAW; | |
678 | ||
8aa91443 | 679 | // get pregap |
680 | fseek(fi, extra_offset, SEEK_SET); | |
681 | fread(&l, 1, sizeof(unsigned int), fi); | |
682 | l = SWAP32(l); | |
683 | if (l != 0 && i > 1) | |
684 | pregapOffset = ti[i].start_offset; | |
685 | ||
686 | // get the track length | |
687 | fread(&l, 1, sizeof(unsigned int), fi); | |
688 | l = SWAP32(l); | |
689 | sec2msf(l, ti[i].length); | |
690 | ||
ef79bbde P |
691 | offset += 0x50; |
692 | } | |
693 | ||
694 | fclose(fi); | |
695 | return 0; | |
696 | } | |
697 | ||
9a92bffb | 698 | static int parsepbp(const char *isofile) { |
699 | struct { | |
700 | unsigned int sig; | |
701 | unsigned int dontcare[8]; | |
702 | unsigned int psar_offs; | |
703 | } pbp_hdr; | |
704 | struct { | |
705 | unsigned char type; | |
706 | unsigned char pad0; | |
707 | unsigned char track; | |
708 | char index0[3]; | |
709 | char pad1; | |
710 | char index1[3]; | |
711 | } toc_entry; | |
712 | struct { | |
713 | unsigned int offset; | |
714 | unsigned int size; | |
715 | unsigned int dontcare[6]; | |
716 | } index_entry; | |
717 | char psar_sig[9]; | |
718 | unsigned int t, cd_length, cdimg_base; | |
719 | const char *ext = NULL; | |
720 | int i, ret; | |
721 | ||
722 | if (strlen(isofile) >= 4) | |
723 | ext = isofile + strlen(isofile) - 4; | |
724 | if (ext == NULL || (strcmp(ext, ".pbp") != 0 && strcmp(ext, ".PBP") != 0)) | |
725 | return -1; | |
726 | ||
727 | numtracks = 0; | |
728 | ||
729 | ret = fread(&pbp_hdr, 1, sizeof(pbp_hdr), cdHandle); | |
730 | if (ret != sizeof(pbp_hdr)) { | |
731 | fprintf(stderr, "failed to read pbp\n"); | |
732 | goto fail_io; | |
733 | } | |
734 | ||
735 | ret = fseek(cdHandle, pbp_hdr.psar_offs, SEEK_SET); | |
736 | if (ret != 0) { | |
737 | fprintf(stderr, "failed to seek to %x\n", pbp_hdr.psar_offs); | |
738 | goto fail_io; | |
739 | } | |
740 | ||
741 | fread(psar_sig, 1, sizeof(psar_sig), cdHandle); | |
742 | psar_sig[8] = 0; | |
743 | if (strcmp(psar_sig, "PSISOIMG") != 0) { | |
744 | fprintf(stderr, "bad psar_sig: %s\n", psar_sig); | |
745 | goto fail_io; | |
746 | } | |
747 | ||
748 | // seek to TOC | |
749 | ret = fseek(cdHandle, pbp_hdr.psar_offs + 0x800, SEEK_SET); | |
750 | if (ret != 0) { | |
751 | fprintf(stderr, "failed to seek to %x\n", pbp_hdr.psar_offs); | |
752 | goto fail_io; | |
753 | } | |
754 | ||
755 | // first 3 entries are special | |
756 | fseek(cdHandle, sizeof(toc_entry), SEEK_CUR); | |
757 | fread(&toc_entry, 1, sizeof(toc_entry), cdHandle); | |
758 | numtracks = btoi(toc_entry.index1[0]); | |
759 | ||
760 | fread(&toc_entry, 1, sizeof(toc_entry), cdHandle); | |
761 | cd_length = btoi(toc_entry.index1[0]) * 60 * 75 + | |
762 | btoi(toc_entry.index1[1]) * 75 + btoi(toc_entry.index1[2]); | |
763 | ||
764 | for (i = 1; i <= numtracks; i++) { | |
765 | fread(&toc_entry, 1, sizeof(toc_entry), cdHandle); | |
766 | ||
767 | ti[i].type = (toc_entry.type == 1) ? CDDA : DATA; | |
768 | ||
769 | ti[i].start_offset = btoi(toc_entry.index0[0]) * 60 * 75 + | |
770 | btoi(toc_entry.index0[1]) * 75 + btoi(toc_entry.index0[2]); | |
771 | ti[i].start[0] = btoi(toc_entry.index1[0]); | |
772 | ti[i].start[1] = btoi(toc_entry.index1[1]); | |
773 | ti[i].start[2] = btoi(toc_entry.index1[2]); | |
774 | ||
775 | if (i > 1) { | |
776 | t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start); | |
777 | sec2msf(t, ti[i - 1].length); | |
778 | } | |
779 | } | |
780 | t = cd_length - ti[numtracks].start_offset; | |
781 | sec2msf(t, ti[numtracks].length); | |
782 | ||
783 | // seek to ISO index | |
784 | ret = fseek(cdHandle, pbp_hdr.psar_offs + 0x4000, SEEK_SET); | |
785 | if (ret != 0) { | |
786 | fprintf(stderr, "failed to seek to ISO index\n"); | |
787 | goto fail_io; | |
788 | } | |
789 | ||
790 | compr_img = calloc(1, sizeof(*compr_img)); | |
791 | if (compr_img == NULL) | |
792 | goto fail_io; | |
793 | ||
794 | compr_img->current_block = (unsigned int)-1; | |
795 | ||
796 | compr_img->index_len = (0x100000 - 0x4000) / sizeof(index_entry); | |
797 | compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); | |
798 | if (compr_img->index_table == NULL) | |
799 | goto fail_io; | |
800 | ||
801 | cdimg_base = pbp_hdr.psar_offs + 0x100000; | |
802 | for (i = 0; i < compr_img->index_len; i++) { | |
803 | ret = fread(&index_entry, 1, sizeof(index_entry), cdHandle); | |
804 | if (ret != sizeof(index_entry)) { | |
805 | fprintf(stderr, "failed to read index_entry #%d\n", i); | |
806 | goto fail_index; | |
807 | } | |
808 | ||
809 | if (index_entry.size == 0) | |
810 | break; | |
811 | ||
812 | compr_img->index_table[i] = cdimg_base + index_entry.offset; | |
813 | } | |
814 | compr_img->index_table[i] = cdimg_base + index_entry.offset + index_entry.size; | |
815 | ||
816 | return 0; | |
817 | ||
818 | fail_index: | |
819 | free(compr_img->index_table); | |
820 | compr_img->index_table = NULL; | |
821 | fail_io: | |
822 | return -1; | |
823 | } | |
824 | ||
ef79bbde P |
825 | // this function tries to get the .sub file of the given .img |
826 | static int opensubfile(const char *isoname) { | |
827 | char subname[MAXPATHLEN]; | |
828 | ||
829 | // copy name of the iso and change extension from .img to .sub | |
830 | strncpy(subname, isoname, sizeof(subname)); | |
831 | subname[MAXPATHLEN - 1] = '\0'; | |
832 | if (strlen(subname) >= 4) { | |
833 | strcpy(subname + strlen(subname) - 4, ".sub"); | |
834 | } | |
835 | else { | |
836 | return -1; | |
837 | } | |
838 | ||
839 | subHandle = fopen(subname, "rb"); | |
840 | if (subHandle == NULL) { | |
841 | return -1; | |
842 | } | |
843 | ||
844 | return 0; | |
845 | } | |
846 | ||
ae4e7dc9 | 847 | static int opensbifile(const char *isoname) { |
848 | char sbiname[MAXPATHLEN]; | |
849 | int s; | |
850 | ||
851 | strncpy(sbiname, isoname, sizeof(sbiname)); | |
852 | sbiname[MAXPATHLEN - 1] = '\0'; | |
853 | if (strlen(sbiname) >= 4) { | |
854 | strcpy(sbiname + strlen(sbiname) - 4, ".sbi"); | |
855 | } | |
856 | else { | |
857 | return -1; | |
858 | } | |
859 | ||
860 | fseek(cdHandle, 0, SEEK_END); | |
861 | s = ftell(cdHandle) / 2352; | |
862 | ||
863 | return LoadSBI(sbiname, s); | |
864 | } | |
865 | ||
9a92bffb | 866 | static int cdread_normal(FILE *f, void *dest, int sector, int offset) |
867 | { | |
868 | fseek(f, sector * CD_FRAMESIZE_RAW + offset, SEEK_SET); | |
869 | return fread(dest, 1, CD_FRAMESIZE_RAW - offset, f); | |
870 | } | |
871 | ||
872 | static int cdread_sub_mixed(FILE *f, void *dest, int sector, int offset) | |
873 | { | |
874 | int ret; | |
875 | ||
876 | fseek(f, sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + offset, SEEK_SET); | |
877 | ret = fread(dest, 1, CD_FRAMESIZE_RAW - offset, f); | |
878 | fread(subbuffer, 1, SUB_FRAMESIZE, f); | |
879 | ||
880 | if (subChanRaw) DecodeRawSubData(); | |
881 | ||
882 | return ret; | |
883 | } | |
884 | ||
885 | static int uncompress2(void *out, unsigned long *out_size, void *in, unsigned long in_size) | |
886 | { | |
887 | static z_stream z; | |
888 | int ret = 0; | |
889 | ||
890 | if (z.zalloc == NULL) { | |
891 | // XXX: one-time leak here.. | |
892 | z.next_in = Z_NULL; | |
893 | z.avail_in = 0; | |
894 | z.zalloc = Z_NULL; | |
895 | z.zfree = Z_NULL; | |
896 | z.opaque = Z_NULL; | |
897 | ret = inflateInit2(&z, -15); | |
898 | } | |
899 | else | |
900 | ret = inflateReset(&z); | |
901 | if (ret != Z_OK) | |
902 | return ret; | |
903 | ||
904 | z.next_in = in; | |
905 | z.avail_in = in_size; | |
906 | z.next_out = out; | |
907 | z.avail_out = *out_size; | |
908 | ||
909 | ret = inflate(&z, Z_NO_FLUSH); | |
910 | //inflateEnd(&z); | |
911 | ||
912 | *out_size -= z.avail_out; | |
913 | return ret == 1 ? 0 : ret; | |
914 | } | |
915 | ||
916 | static int cdread_compressed(FILE *f, void *dest, int sector, int offset) | |
917 | { | |
918 | unsigned int start_byte, size; | |
919 | unsigned long cdbuffer_size; | |
920 | int ret, block; | |
921 | ||
922 | block = sector >> 4; | |
923 | compr_img->sector_in_blk = sector & 15; | |
924 | ||
925 | if (block == compr_img->current_block) { | |
926 | //printf("hit sect %d\n", sector); | |
927 | goto finish; | |
928 | } | |
929 | ||
930 | if (sector >= compr_img->index_len * 16) { | |
931 | fprintf(stderr, "sector %d is past img end\n", sector); | |
932 | return -1; | |
933 | } | |
934 | ||
935 | start_byte = compr_img->index_table[block]; | |
936 | if (fseek(cdHandle, start_byte, SEEK_SET) != 0) { | |
937 | fprintf(stderr, "seek error for block %d at %x: ", | |
938 | block, start_byte); | |
939 | perror(NULL); | |
940 | return -1; | |
941 | } | |
942 | ||
943 | size = compr_img->index_table[block + 1] - start_byte; | |
944 | if (size > sizeof(compr_img->buff_compressed)) { | |
945 | fprintf(stderr, "block %d is too large: %u\n", block, size); | |
946 | return -1; | |
947 | } | |
948 | ||
949 | if (fread(compr_img->buff_compressed, 1, size, cdHandle) != size) { | |
950 | fprintf(stderr, "read error for block %d at %x: ", block, start_byte); | |
951 | perror(NULL); | |
952 | return -1; | |
953 | } | |
954 | ||
955 | cdbuffer_size = sizeof(compr_img->buff_raw[0]) * 16; | |
956 | ret = uncompress2(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size); | |
957 | if (ret != 0) { | |
958 | fprintf(stderr, "uncompress failed with %d for block %d, sector %d\n", | |
959 | ret, block, sector); | |
960 | return -1; | |
961 | } | |
962 | if (cdbuffer_size != sizeof(compr_img->buff_raw[0]) * 16) | |
963 | fprintf(stderr, "cdbuffer_size: %lu != %d, sector %d\n", cdbuffer_size, | |
964 | sizeof(compr_img->buff_raw[0]) * 16, sector); | |
965 | ||
966 | // done at last! | |
967 | compr_img->current_block = block; | |
968 | ||
969 | finish: | |
970 | if (dest != cdbuffer) // copy avoid HACK | |
971 | memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk] + offset, | |
972 | CD_FRAMESIZE_RAW - offset); | |
973 | return CD_FRAMESIZE_RAW - offset; | |
974 | } | |
975 | ||
976 | static int cdread_2048(FILE *f, void *dest, int sector, int offset) | |
977 | { | |
978 | int ret; | |
979 | ||
980 | fseek(f, sector * 2048, SEEK_SET); | |
981 | ret = fread((char *)dest + 12, 1, 2048, f); | |
982 | ||
983 | // not really necessary, fake mode 2 header | |
984 | memset(cdbuffer, 0, 12); | |
985 | sec2msf(sector + 2 * 75, (char *)cdbuffer); | |
986 | cdbuffer[3] = 1; | |
987 | ||
988 | return ret; | |
989 | } | |
990 | ||
991 | static unsigned char * CALLBACK ISOgetBuffer_compr(void) { | |
992 | return compr_img->buff_raw[compr_img->sector_in_blk] + 12; | |
993 | } | |
994 | ||
995 | static unsigned char * CALLBACK ISOgetBuffer(void) { | |
996 | return cdbuffer; | |
997 | } | |
998 | ||
ef79bbde P |
999 | static void PrintTracks(void) { |
1000 | int i; | |
1001 | ||
1002 | for (i = 1; i <= numtracks; i++) { | |
1003 | SysPrintf(_("Track %.2d (%s) - Start %.2d:%.2d:%.2d, Length %.2d:%.2d:%.2d\n"), | |
1004 | i, (ti[i].type == DATA ? "DATA" : "AUDIO"), | |
1005 | ti[i].start[0], ti[i].start[1], ti[i].start[2], | |
1006 | ti[i].length[0], ti[i].length[1], ti[i].length[2]); | |
1007 | } | |
1008 | } | |
1009 | ||
1010 | // This function is invoked by the front-end when opening an ISO | |
1011 | // file for playback | |
1012 | static long CALLBACK ISOopen(void) { | |
9a92bffb | 1013 | boolean isMode1ISO = FALSE; |
1014 | ||
ef79bbde P |
1015 | if (cdHandle != NULL) { |
1016 | return 0; // it's already open | |
1017 | } | |
1018 | ||
1019 | cdHandle = fopen(GetIsoFile(), "rb"); | |
1020 | if (cdHandle == NULL) { | |
1021 | return -1; | |
1022 | } | |
1023 | ||
1024 | SysPrintf(_("Loaded CD Image: %s"), GetIsoFile()); | |
1025 | ||
1026 | cddaBigEndian = FALSE; | |
1027 | subChanMixed = FALSE; | |
1028 | subChanRaw = FALSE; | |
8aa91443 | 1029 | pregapOffset = 0; |
ef79bbde | 1030 | |
9a92bffb | 1031 | CDR_getBuffer = ISOgetBuffer; |
1032 | cdimg_read_func = cdread_normal; | |
1033 | ||
ef79bbde P |
1034 | if (parsecue(GetIsoFile()) == 0) { |
1035 | SysPrintf("[+cue]"); | |
1036 | } | |
1037 | else if (parsetoc(GetIsoFile()) == 0) { | |
1038 | SysPrintf("[+toc]"); | |
1039 | } | |
1040 | else if (parseccd(GetIsoFile()) == 0) { | |
1041 | SysPrintf("[+ccd]"); | |
1042 | } | |
1043 | else if (parsemds(GetIsoFile()) == 0) { | |
1044 | SysPrintf("[+mds]"); | |
1045 | } | |
9a92bffb | 1046 | else if (parsepbp(GetIsoFile()) == 0) { |
1047 | SysPrintf("[pbp]"); | |
1048 | CDR_getBuffer = ISOgetBuffer_compr; | |
1049 | cdimg_read_func = cdread_compressed; | |
1050 | } | |
ef79bbde P |
1051 | |
1052 | if (!subChanMixed && opensubfile(GetIsoFile()) == 0) { | |
1053 | SysPrintf("[+sub]"); | |
1054 | } | |
ae4e7dc9 | 1055 | if (opensbifile(GetIsoFile()) == 0) { |
1056 | SysPrintf("[+sbi]"); | |
1057 | } | |
ef79bbde | 1058 | |
9a92bffb | 1059 | // guess whether it is mode1/2048 |
1060 | fseek(cdHandle, 0, SEEK_END); | |
1061 | if (ftell(cdHandle) % 2048 == 0) { | |
1062 | unsigned int modeTest = 0; | |
1063 | fseek(cdHandle, 0, SEEK_SET); | |
1064 | fread(&modeTest, 4, 1, cdHandle); | |
1065 | if (SWAP32(modeTest) != 0xffffff00) { | |
1066 | SysPrintf("[2048]"); | |
1067 | isMode1ISO = TRUE; | |
1068 | } | |
1069 | } | |
1070 | fseek(cdHandle, 0, SEEK_SET); | |
1071 | ||
ef79bbde P |
1072 | SysPrintf(".\n"); |
1073 | ||
1074 | PrintTracks(); | |
1075 | ||
9a92bffb | 1076 | if (subChanMixed) |
1077 | cdimg_read_func = cdread_sub_mixed; | |
1078 | else if (isMode1ISO) | |
1079 | cdimg_read_func = cdread_2048; | |
1080 | ||
38b8102c | 1081 | // make sure we have another handle open for cdda |
1082 | if (numtracks > 1 && ti[1].handle == NULL) { | |
1083 | ti[1].handle = fopen(GetIsoFile(), "rb"); | |
1084 | } | |
9a92bffb | 1085 | cdda_cur_sector = cdda_start_sector = 0; |
38b8102c | 1086 | |
ef79bbde P |
1087 | return 0; |
1088 | } | |
1089 | ||
1090 | static long CALLBACK ISOclose(void) { | |
38b8102c | 1091 | int i; |
1092 | ||
ef79bbde P |
1093 | if (cdHandle != NULL) { |
1094 | fclose(cdHandle); | |
1095 | cdHandle = NULL; | |
1096 | } | |
1097 | if (subHandle != NULL) { | |
1098 | fclose(subHandle); | |
1099 | subHandle = NULL; | |
1100 | } | |
1101 | stopCDDA(); | |
38b8102c | 1102 | cddaHandle = NULL; |
1103 | ||
9a92bffb | 1104 | if (compr_img != NULL) { |
1105 | free(compr_img->index_table); | |
1106 | free(compr_img); | |
1107 | compr_img = NULL; | |
1108 | } | |
1109 | ||
38b8102c | 1110 | for (i = 1; i <= numtracks; i++) { |
1111 | if (ti[i].handle != NULL) { | |
1112 | fclose(ti[i].handle); | |
1113 | ti[i].handle = NULL; | |
1114 | } | |
1115 | } | |
1116 | numtracks = 0; | |
ae4e7dc9 | 1117 | UnloadSBI(); |
38b8102c | 1118 | |
1119 | return 0; | |
1120 | } | |
1121 | ||
1122 | static long CALLBACK ISOinit(void) { | |
1123 | assert(cdHandle == NULL); | |
1124 | assert(subHandle == NULL); | |
1125 | ||
1126 | return 0; // do nothing | |
1127 | } | |
1128 | ||
1129 | static long CALLBACK ISOshutdown(void) { | |
1130 | ISOclose(); | |
ef79bbde P |
1131 | return 0; |
1132 | } | |
1133 | ||
1134 | // return Starting and Ending Track | |
1135 | // buffer: | |
1136 | // byte 0 - start track | |
1137 | // byte 1 - end track | |
1138 | static long CALLBACK ISOgetTN(unsigned char *buffer) { | |
1139 | buffer[0] = 1; | |
1140 | ||
1141 | if (numtracks > 0) { | |
1142 | buffer[1] = numtracks; | |
1143 | } | |
1144 | else { | |
1145 | buffer[1] = 1; | |
1146 | } | |
1147 | ||
1148 | return 0; | |
1149 | } | |
1150 | ||
1151 | // return Track Time | |
1152 | // buffer: | |
1153 | // byte 0 - frame | |
1154 | // byte 1 - second | |
1155 | // byte 2 - minute | |
1156 | static long CALLBACK ISOgetTD(unsigned char track, unsigned char *buffer) { | |
858ad511 | 1157 | if (track == 0) { |
1158 | // CD length according pcsxr-svn (done a bit different here) | |
1159 | unsigned int sect; | |
1160 | unsigned char time[3]; | |
1161 | sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length); | |
ab948f7e | 1162 | sec2msf(sect, (char *)time); |
858ad511 | 1163 | buffer[2] = time[0]; |
1164 | buffer[1] = time[1]; | |
1165 | buffer[0] = time[2]; | |
1166 | } | |
1167 | else if (numtracks > 0 && track <= numtracks) { | |
ef79bbde P |
1168 | buffer[2] = ti[track].start[0]; |
1169 | buffer[1] = ti[track].start[1]; | |
1170 | buffer[0] = ti[track].start[2]; | |
1171 | } | |
1172 | else { | |
1173 | buffer[2] = 0; | |
1174 | buffer[1] = 2; | |
1175 | buffer[0] = 0; | |
1176 | } | |
1177 | ||
1178 | return 0; | |
1179 | } | |
1180 | ||
1181 | // decode 'raw' subchannel data ripped by cdrdao | |
1182 | static void DecodeRawSubData(void) { | |
1183 | unsigned char subQData[12]; | |
1184 | int i; | |
1185 | ||
1186 | memset(subQData, 0, sizeof(subQData)); | |
1187 | ||
1188 | for (i = 0; i < 8 * 12; i++) { | |
1189 | if (subbuffer[i] & (1 << 6)) { // only subchannel Q is needed | |
1190 | subQData[i >> 3] |= (1 << (7 - (i & 7))); | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | memcpy(&subbuffer[12], subQData, 12); | |
1195 | } | |
1196 | ||
1197 | // read track | |
1198 | // time: byte 0 - minute; byte 1 - second; byte 2 - frame | |
1199 | // uses bcd format | |
1200 | static long CALLBACK ISOreadTrack(unsigned char *time) { | |
19c03d80 | 1201 | int sector = MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])); |
1202 | ||
ef79bbde P |
1203 | if (cdHandle == NULL) { |
1204 | return -1; | |
1205 | } | |
1206 | ||
8aa91443 | 1207 | if (pregapOffset) { |
1208 | subChanMissing = FALSE; | |
1209 | if (sector >= pregapOffset) { | |
1210 | sector -= 2 * 75; | |
1211 | if (sector < pregapOffset) | |
1212 | subChanMissing = TRUE; | |
1213 | } | |
1214 | } | |
1215 | ||
9a92bffb | 1216 | cdimg_read_func(cdHandle, cdbuffer, sector, 12); |
ef79bbde | 1217 | |
9a92bffb | 1218 | if (subHandle != NULL) { |
1219 | fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET); | |
1220 | fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); | |
ef79bbde | 1221 | |
9a92bffb | 1222 | if (subChanRaw) DecodeRawSubData(); |
ef79bbde P |
1223 | } |
1224 | ||
1225 | return 0; | |
1226 | } | |
1227 | ||
ef79bbde P |
1228 | // plays cdda audio |
1229 | // sector: byte 0 - minute; byte 1 - second; byte 2 - frame | |
1230 | // does NOT uses bcd format | |
1231 | static long CALLBACK ISOplay(unsigned char *time) { | |
19c03d80 | 1232 | unsigned int i, abs_sect; |
1233 | int file_sect; | |
38b8102c | 1234 | |
7b8da7ab | 1235 | if (numtracks <= 1) |
1236 | return 0; | |
1237 | ||
38b8102c | 1238 | // find the track |
19c03d80 | 1239 | abs_sect = msf2sec((char *)time); |
38b8102c | 1240 | for (i = numtracks; i > 1; i--) |
19c03d80 | 1241 | if (msf2sec(ti[i].start) <= abs_sect + 2 * 75) |
38b8102c | 1242 | break; |
1243 | ||
19c03d80 | 1244 | file_sect = ti[i].start_offset + (abs_sect - msf2sec(ti[i].start)); |
1245 | if (file_sect < 0) | |
1246 | file_sect = 0; | |
1247 | ||
38b8102c | 1248 | // find the file that contains this track |
1249 | for (; i > 1; i--) | |
1250 | if (ti[i].handle != NULL) | |
1251 | break; | |
1252 | ||
9a92bffb | 1253 | cdda_start_sector = abs_sect - file_sect; |
38b8102c | 1254 | cddaHandle = ti[i].handle; |
1255 | ||
8aa91443 | 1256 | if (pregapOffset && (unsigned int)(pregapOffset - file_sect) < 2 * 75) { |
1257 | // get out of the missing pregap to avoid noise | |
1258 | file_sect = pregapOffset; | |
1259 | } | |
1260 | ||
ef79bbde | 1261 | if (SPU_playCDDAchannel != NULL) { |
9a92bffb | 1262 | startCDDA(file_sect); |
ef79bbde P |
1263 | } |
1264 | return 0; | |
1265 | } | |
1266 | ||
1267 | // stops cdda audio | |
1268 | static long CALLBACK ISOstop(void) { | |
1269 | stopCDDA(); | |
1270 | return 0; | |
1271 | } | |
1272 | ||
1273 | // gets subchannel data | |
1274 | static unsigned char* CALLBACK ISOgetBufferSub(void) { | |
8aa91443 | 1275 | if ((subHandle != NULL || subChanMixed) && !subChanMissing) { |
ef79bbde P |
1276 | return subbuffer; |
1277 | } | |
1278 | ||
1279 | return NULL; | |
1280 | } | |
1281 | ||
1282 | static long CALLBACK ISOgetStatus(struct CdrStat *stat) { | |
1283 | int sec; | |
1284 | ||
1285 | CDR__getStatus(stat); | |
1286 | ||
1287 | if (playing) { | |
1288 | stat->Type = 0x02; | |
1289 | stat->Status |= 0x80; | |
ef79bbde P |
1290 | } |
1291 | else { | |
1292 | stat->Type = 0x01; | |
1293 | } | |
1294 | ||
9a92bffb | 1295 | sec = cdda_start_sector + cdda_cur_sector; |
858ad511 | 1296 | sec2msf(sec, (char *)stat->Time); |
1297 | ||
ef79bbde P |
1298 | return 0; |
1299 | } | |
1300 | ||
1301 | void cdrIsoInit(void) { | |
1302 | CDR_init = ISOinit; | |
1303 | CDR_shutdown = ISOshutdown; | |
1304 | CDR_open = ISOopen; | |
1305 | CDR_close = ISOclose; | |
1306 | CDR_getTN = ISOgetTN; | |
1307 | CDR_getTD = ISOgetTD; | |
1308 | CDR_readTrack = ISOreadTrack; | |
1309 | CDR_getBuffer = ISOgetBuffer; | |
1310 | CDR_play = ISOplay; | |
1311 | CDR_stop = ISOstop; | |
1312 | CDR_getBufferSub = ISOgetBufferSub; | |
1313 | CDR_getStatus = ISOgetStatus; | |
1314 | ||
1315 | CDR_getDriveLetter = CDR__getDriveLetter; | |
1316 | CDR_configure = CDR__configure; | |
1317 | CDR_test = CDR__test; | |
1318 | CDR_about = CDR__about; | |
1319 | CDR_setfilename = CDR__setfilename; | |
1320 | ||
1321 | numtracks = 0; | |
1322 | } | |
1323 | ||
1324 | int cdrIsoActive(void) { | |
1325 | return (cdHandle != NULL); | |
1326 | } |