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ef79bbde P |
1 | /*************************************************************************** |
2 | * Copyright (C) 2007 PCSX-df Team * | |
3 | * Copyright (C) 2009 Wei Mingzhi * | |
77160d47 | 4 | * Copyright (C) 2012 notaz * |
ef79bbde P |
5 | * * |
6 | * This program is free software; you can redistribute it and/or modify * | |
7 | * it under the terms of the GNU General Public License as published by * | |
8 | * the Free Software Foundation; either version 2 of the License, or * | |
9 | * (at your option) any later version. * | |
10 | * * | |
11 | * This program 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 * | |
14 | * GNU General Public License for more details. * | |
15 | * * | |
16 | * You should have received a copy of the GNU General Public License * | |
17 | * along with this program; if not, write to the * | |
18 | * Free Software Foundation, Inc., * | |
deebc67f | 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * |
ef79bbde P |
20 | ***************************************************************************/ |
21 | ||
22 | #include "psxcommon.h" | |
23 | #include "plugins.h" | |
24 | #include "cdrom.h" | |
25 | #include "cdriso.h" | |
ae4e7dc9 | 26 | #include "ppf.h" |
ef79bbde P |
27 | |
28 | #ifdef _WIN32 | |
003cfc63 | 29 | #define WIN32_LEAN_AND_MEAN |
ef79bbde P |
30 | #include <process.h> |
31 | #include <windows.h> | |
deebc67f | 32 | #define strcasecmp _stricmp |
ce36c10b | 33 | #define usleep(x) (Sleep((x) / 1000)) |
ef79bbde P |
34 | #else |
35 | #include <pthread.h> | |
36 | #include <sys/time.h> | |
349f7d81 | 37 | #include <unistd.h> |
ef79bbde | 38 | #endif |
2e058581 | 39 | #include <errno.h> |
9a92bffb | 40 | #include <zlib.h> |
ef79bbde | 41 | |
cc376814 | 42 | #define OFF_T_MSB ((off_t)1 << (sizeof(off_t) * 8 - 1)) |
43 | ||
0c2871a7 | 44 | unsigned int cdrIsoMultidiskCount; |
45 | unsigned int cdrIsoMultidiskSelect; | |
46 | ||
ef79bbde P |
47 | static FILE *cdHandle = NULL; |
48 | static FILE *cddaHandle = NULL; | |
49 | static FILE *subHandle = NULL; | |
50 | ||
51 | static boolean subChanMixed = FALSE; | |
52 | static boolean subChanRaw = FALSE; | |
8aa91443 | 53 | static boolean subChanMissing = FALSE; |
ef79bbde | 54 | |
deebc67f | 55 | static boolean multifile = FALSE; |
56 | ||
81abe4d5 | 57 | static unsigned char cdbuffer[CD_FRAMESIZE_RAW]; |
ef79bbde P |
58 | static unsigned char subbuffer[SUB_FRAMESIZE]; |
59 | ||
60 | static unsigned char sndbuffer[CD_FRAMESIZE_RAW * 10]; | |
61 | ||
62 | #define CDDA_FRAMETIME (1000 * (sizeof(sndbuffer) / CD_FRAMESIZE_RAW) / 75) | |
63 | ||
64 | #ifdef _WIN32 | |
65 | static HANDLE threadid; | |
66 | #else | |
67 | static pthread_t threadid; | |
68 | #endif | |
69 | static unsigned int initial_offset = 0; | |
38b8102c | 70 | static boolean playing = FALSE; |
ef79bbde | 71 | static boolean cddaBigEndian = FALSE; |
77160d47 | 72 | // cdda sectors in toc, byte offset in file |
9a92bffb | 73 | static unsigned int cdda_cur_sector; |
2058d51f | 74 | static unsigned int cdda_first_sector; |
77160d47 | 75 | static unsigned int cdda_file_offset; |
8aa91443 | 76 | /* Frame offset into CD image where pregap data would be found if it was there. |
77 | * If a game seeks there we must *not* return subchannel data since it's | |
78 | * not in the CD image, so that cdrom code can fake subchannel data instead. | |
79 | * XXX: there could be multiple pregaps but PSX dumps only have one? */ | |
80 | static unsigned int pregapOffset; | |
ef79bbde | 81 | |
deebc67f | 82 | #define cddaCurPos cdda_cur_sector |
83 | ||
9a92bffb | 84 | // compressed image stuff |
85 | static struct { | |
86 | unsigned char buff_raw[16][CD_FRAMESIZE_RAW]; | |
87 | unsigned char buff_compressed[CD_FRAMESIZE_RAW * 16 + 100]; | |
cc376814 | 88 | off_t *index_table; |
9a92bffb | 89 | unsigned int index_len; |
0877957a | 90 | unsigned int block_shift; |
9a92bffb | 91 | unsigned int current_block; |
92 | unsigned int sector_in_blk; | |
93 | } *compr_img; | |
94 | ||
77160d47 | 95 | int (*cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector); |
9a92bffb | 96 | |
ef79bbde P |
97 | char* CALLBACK CDR__getDriveLetter(void); |
98 | long CALLBACK CDR__configure(void); | |
99 | long CALLBACK CDR__test(void); | |
100 | void CALLBACK CDR__about(void); | |
101 | long CALLBACK CDR__setfilename(char *filename); | |
102 | long CALLBACK CDR__getStatus(struct CdrStat *stat); | |
103 | ||
19c03d80 | 104 | static void DecodeRawSubData(void); |
105 | ||
ef79bbde | 106 | struct trackinfo { |
deebc67f | 107 | enum {DATA=1, CDDA} type; |
ef79bbde P |
108 | char start[3]; // MSF-format |
109 | char length[3]; // MSF-format | |
38b8102c | 110 | FILE *handle; // for multi-track images CDDA |
77160d47 | 111 | unsigned int start_offset; // byte offset from start of above file |
ef79bbde P |
112 | }; |
113 | ||
114 | #define MAXTRACKS 100 /* How many tracks can a CD hold? */ | |
115 | ||
116 | static int numtracks = 0; | |
117 | static struct trackinfo ti[MAXTRACKS]; | |
118 | ||
119 | // get a sector from a msf-array | |
120 | static unsigned int msf2sec(char *msf) { | |
121 | return ((msf[0] * 60 + msf[1]) * 75) + msf[2]; | |
122 | } | |
123 | ||
124 | static void sec2msf(unsigned int s, char *msf) { | |
125 | msf[0] = s / 75 / 60; | |
126 | s = s - msf[0] * 75 * 60; | |
127 | msf[1] = s / 75; | |
128 | s = s - msf[1] * 75; | |
129 | msf[2] = s; | |
130 | } | |
131 | ||
132 | // divide a string of xx:yy:zz into m, s, f | |
133 | static void tok2msf(char *time, char *msf) { | |
134 | char *token; | |
135 | ||
136 | token = strtok(time, ":"); | |
137 | if (token) { | |
138 | msf[0] = atoi(token); | |
139 | } | |
140 | else { | |
141 | msf[0] = 0; | |
142 | } | |
143 | ||
144 | token = strtok(NULL, ":"); | |
145 | if (token) { | |
146 | msf[1] = atoi(token); | |
147 | } | |
148 | else { | |
149 | msf[1] = 0; | |
150 | } | |
151 | ||
152 | token = strtok(NULL, ":"); | |
153 | if (token) { | |
154 | msf[2] = atoi(token); | |
155 | } | |
156 | else { | |
157 | msf[2] = 0; | |
158 | } | |
159 | } | |
160 | ||
161 | #ifndef _WIN32 | |
162 | static long GetTickCount(void) { | |
163 | static time_t initial_time = 0; | |
164 | struct timeval now; | |
165 | ||
166 | gettimeofday(&now, NULL); | |
167 | ||
168 | if (initial_time == 0) { | |
169 | initial_time = now.tv_sec; | |
170 | } | |
171 | ||
172 | return (now.tv_sec - initial_time) * 1000L + now.tv_usec / 1000L; | |
173 | } | |
174 | #endif | |
175 | ||
176 | // this thread plays audio data | |
177 | #ifdef _WIN32 | |
178 | static void playthread(void *param) | |
179 | #else | |
180 | static void *playthread(void *param) | |
181 | #endif | |
182 | { | |
983a7cfd | 183 | long osleep, d, t, i, s; |
ef79bbde | 184 | unsigned char tmp; |
77160d47 | 185 | int ret = 0, sector_offs; |
ef79bbde P |
186 | |
187 | t = GetTickCount(); | |
188 | ||
189 | while (playing) { | |
9a92bffb | 190 | s = 0; |
191 | for (i = 0; i < sizeof(sndbuffer) / CD_FRAMESIZE_RAW; i++) { | |
77160d47 | 192 | sector_offs = cdda_cur_sector - cdda_first_sector; |
193 | if (sector_offs < 0) { | |
194 | d = CD_FRAMESIZE_RAW; | |
195 | memset(sndbuffer + s, 0, d); | |
196 | } | |
197 | else { | |
198 | d = cdimg_read_func(cddaHandle, cdda_file_offset, | |
199 | sndbuffer + s, sector_offs); | |
200 | if (d < CD_FRAMESIZE_RAW) | |
201 | break; | |
202 | } | |
2058d51f | 203 | |
9a92bffb | 204 | s += d; |
205 | cdda_cur_sector++; | |
ef79bbde | 206 | } |
19c03d80 | 207 | |
ef79bbde P |
208 | if (s == 0) { |
209 | playing = FALSE; | |
ef79bbde P |
210 | initial_offset = 0; |
211 | break; | |
212 | } | |
213 | ||
214 | if (!cdr.Muted && playing) { | |
215 | if (cddaBigEndian) { | |
216 | for (i = 0; i < s / 2; i++) { | |
217 | tmp = sndbuffer[i * 2]; | |
218 | sndbuffer[i * 2] = sndbuffer[i * 2 + 1]; | |
219 | sndbuffer[i * 2 + 1] = tmp; | |
220 | } | |
221 | } | |
222 | ||
53598a71 | 223 | // can't do it yet due to readahead.. |
224 | //cdrAttenuate((short *)sndbuffer, s / 4, 1); | |
983a7cfd | 225 | do { |
226 | ret = SPU_playCDDAchannel((short *)sndbuffer, s); | |
227 | if (ret == 0x7761) | |
ce36c10b | 228 | { |
983a7cfd | 229 | usleep(6 * 1000); |
ce36c10b | 230 | } |
983a7cfd | 231 | } while (ret == 0x7761 && playing); // rearmed_wait |
ef79bbde | 232 | } |
983a7cfd | 233 | |
234 | if (ret != 0x676f) { // !rearmed_go | |
235 | // do approx sleep | |
236 | long now; | |
237 | ||
238 | // HACK: stop feeding data while emu is paused | |
239 | extern int stop; | |
240 | while (stop && playing) | |
ce36c10b | 241 | { |
983a7cfd | 242 | usleep(10000); |
ce36c10b | 243 | } |
983a7cfd | 244 | |
245 | now = GetTickCount(); | |
246 | osleep = t - now; | |
247 | if (osleep <= 0) { | |
248 | osleep = 1; | |
249 | t = now; | |
250 | } | |
251 | else if (osleep > CDDA_FRAMETIME) { | |
252 | osleep = CDDA_FRAMETIME; | |
253 | t = now; | |
254 | } | |
255 | ||
256 | usleep(osleep * 1000); | |
257 | t += CDDA_FRAMETIME; | |
258 | } | |
259 | ||
ef79bbde P |
260 | } |
261 | ||
262 | #ifdef _WIN32 | |
263 | _endthread(); | |
264 | #else | |
265 | pthread_exit(0); | |
266 | return NULL; | |
267 | #endif | |
268 | } | |
269 | ||
270 | // stop the CDDA playback | |
271 | static void stopCDDA() { | |
272 | if (!playing) { | |
273 | return; | |
274 | } | |
275 | ||
276 | playing = FALSE; | |
277 | #ifdef _WIN32 | |
278 | WaitForSingleObject(threadid, INFINITE); | |
279 | #else | |
280 | pthread_join(threadid, NULL); | |
281 | #endif | |
ef79bbde P |
282 | } |
283 | ||
284 | // start the CDDA playback | |
77160d47 | 285 | static void startCDDA(void) { |
ef79bbde | 286 | if (playing) { |
ef79bbde P |
287 | stopCDDA(); |
288 | } | |
289 | ||
ef79bbde P |
290 | playing = TRUE; |
291 | ||
292 | #ifdef _WIN32 | |
293 | threadid = (HANDLE)_beginthread(playthread, 0, NULL); | |
294 | #else | |
295 | pthread_create(&threadid, NULL, playthread, NULL); | |
296 | #endif | |
297 | } | |
298 | ||
299 | // this function tries to get the .toc file of the given .bin | |
300 | // the necessary data is put into the ti (trackinformation)-array | |
301 | static int parsetoc(const char *isofile) { | |
302 | char tocname[MAXPATHLEN]; | |
303 | FILE *fi; | |
e999be41 | 304 | char linebuf[256], tmp[256], name[256]; |
ef79bbde P |
305 | char *token; |
306 | char time[20], time2[20]; | |
e999be41 | 307 | unsigned int t, sector_offs, sector_size; |
308 | unsigned int current_zero_gap = 0; | |
ef79bbde P |
309 | |
310 | numtracks = 0; | |
311 | ||
312 | // copy name of the iso and change extension from .bin to .toc | |
313 | strncpy(tocname, isofile, sizeof(tocname)); | |
314 | tocname[MAXPATHLEN - 1] = '\0'; | |
315 | if (strlen(tocname) >= 4) { | |
316 | strcpy(tocname + strlen(tocname) - 4, ".toc"); | |
317 | } | |
318 | else { | |
319 | return -1; | |
320 | } | |
321 | ||
322 | if ((fi = fopen(tocname, "r")) == NULL) { | |
323 | // try changing extension to .cue (to satisfy some stupid tutorials) | |
324 | strcpy(tocname + strlen(tocname) - 4, ".cue"); | |
325 | if ((fi = fopen(tocname, "r")) == NULL) { | |
326 | // if filename is image.toc.bin, try removing .bin (for Brasero) | |
327 | strcpy(tocname, isofile); | |
328 | t = strlen(tocname); | |
329 | if (t >= 8 && strcmp(tocname + t - 8, ".toc.bin") == 0) { | |
330 | tocname[t - 4] = '\0'; | |
331 | if ((fi = fopen(tocname, "r")) == NULL) { | |
332 | return -1; | |
333 | } | |
334 | } | |
335 | else { | |
336 | return -1; | |
337 | } | |
338 | } | |
92f43ab0 | 339 | // check if it's really a TOC named as a .cue |
340 | fgets(linebuf, sizeof(linebuf), fi); | |
4295c491 | 341 | token = strtok(linebuf, " "); |
342 | if (token && strncmp(token, "CD", 2) != 0 && strcmp(token, "CATALOG") != 0) { | |
92f43ab0 | 343 | fclose(fi); |
344 | return -1; | |
345 | } | |
346 | fseek(fi, 0, SEEK_SET); | |
ef79bbde P |
347 | } |
348 | ||
349 | memset(&ti, 0, sizeof(ti)); | |
350 | cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio | |
351 | ||
e999be41 | 352 | sector_size = CD_FRAMESIZE_RAW; |
19c03d80 | 353 | sector_offs = 2 * 75; |
354 | ||
ef79bbde P |
355 | // parse the .toc file |
356 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
357 | // search for tracks | |
e999be41 | 358 | strncpy(tmp, linebuf, sizeof(linebuf)); |
359 | token = strtok(tmp, " "); | |
ef79bbde P |
360 | |
361 | if (token == NULL) continue; | |
362 | ||
363 | if (!strcmp(token, "TRACK")) { | |
e999be41 | 364 | sector_offs += current_zero_gap; |
365 | current_zero_gap = 0; | |
366 | ||
ef79bbde P |
367 | // get type of track |
368 | token = strtok(NULL, " "); | |
369 | numtracks++; | |
370 | ||
371 | if (!strncmp(token, "MODE2_RAW", 9)) { | |
372 | ti[numtracks].type = DATA; | |
373 | sec2msf(2 * 75, ti[numtracks].start); // assume data track on 0:2:0 | |
374 | ||
375 | // check if this image contains mixed subchannel data | |
376 | token = strtok(NULL, " "); | |
e999be41 | 377 | if (token != NULL && !strncmp(token, "RW", 2)) { |
378 | sector_size = CD_FRAMESIZE_RAW + SUB_FRAMESIZE; | |
ef79bbde | 379 | subChanMixed = TRUE; |
e999be41 | 380 | if (!strncmp(token, "RW_RAW", 6)) |
381 | subChanRaw = TRUE; | |
ef79bbde P |
382 | } |
383 | } | |
384 | else if (!strncmp(token, "AUDIO", 5)) { | |
385 | ti[numtracks].type = CDDA; | |
386 | } | |
387 | } | |
388 | else if (!strcmp(token, "DATAFILE")) { | |
389 | if (ti[numtracks].type == CDDA) { | |
390 | sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2); | |
19c03d80 | 391 | ti[numtracks].start_offset = t; |
e999be41 | 392 | t = t / sector_size + sector_offs; |
ef79bbde P |
393 | sec2msf(t, (char *)&ti[numtracks].start); |
394 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
395 | } | |
396 | else { | |
397 | sscanf(linebuf, "DATAFILE \"%[^\"]\" %8s", name, time); | |
398 | tok2msf((char *)&time, (char *)&ti[numtracks].length); | |
399 | } | |
400 | } | |
401 | else if (!strcmp(token, "FILE")) { | |
402 | sscanf(linebuf, "FILE \"%[^\"]\" #%d %8s %8s", name, &t, time, time2); | |
403 | tok2msf((char *)&time, (char *)&ti[numtracks].start); | |
e999be41 | 404 | t += msf2sec(ti[numtracks].start) * sector_size; |
19c03d80 | 405 | ti[numtracks].start_offset = t; |
e999be41 | 406 | t = t / sector_size + sector_offs; |
ef79bbde P |
407 | sec2msf(t, (char *)&ti[numtracks].start); |
408 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
409 | } | |
e999be41 | 410 | else if (!strcmp(token, "ZERO") || !strcmp(token, "SILENCE")) { |
411 | // skip unneeded optional fields | |
412 | while (token != NULL) { | |
413 | token = strtok(NULL, " "); | |
414 | if (strchr(token, ':') != NULL) | |
415 | break; | |
416 | } | |
417 | if (token != NULL) { | |
418 | tok2msf(token, tmp); | |
419 | current_zero_gap = msf2sec(tmp); | |
420 | } | |
8aa91443 | 421 | if (numtracks > 1) { |
422 | t = ti[numtracks - 1].start_offset; | |
e999be41 | 423 | t /= sector_size; |
8aa91443 | 424 | pregapOffset = t + msf2sec(ti[numtracks - 1].length); |
425 | } | |
19c03d80 | 426 | } |
e999be41 | 427 | else if (!strcmp(token, "START")) { |
428 | token = strtok(NULL, " "); | |
429 | if (token != NULL && strchr(token, ':')) { | |
430 | tok2msf(token, tmp); | |
431 | t = msf2sec(tmp); | |
432 | ti[numtracks].start_offset += (t - current_zero_gap) * sector_size; | |
433 | t = msf2sec(ti[numtracks].start) + t; | |
434 | sec2msf(t, (char *)&ti[numtracks].start); | |
435 | } | |
436 | } | |
ef79bbde P |
437 | } |
438 | ||
439 | fclose(fi); | |
440 | ||
441 | return 0; | |
442 | } | |
443 | ||
444 | // this function tries to get the .cue file of the given .bin | |
445 | // the necessary data is put into the ti (trackinformation)-array | |
446 | static int parsecue(const char *isofile) { | |
447 | char cuename[MAXPATHLEN]; | |
38b8102c | 448 | char filepath[MAXPATHLEN]; |
449 | char *incue_fname; | |
ef79bbde P |
450 | FILE *fi; |
451 | char *token; | |
452 | char time[20]; | |
453 | char *tmp; | |
19c03d80 | 454 | char linebuf[256], tmpb[256], dummy[256]; |
38b8102c | 455 | unsigned int incue_max_len; |
77160d47 | 456 | unsigned int t, file_len, mode, sector_offs; |
457 | unsigned int sector_size = 2352; | |
ef79bbde P |
458 | |
459 | numtracks = 0; | |
460 | ||
461 | // copy name of the iso and change extension from .bin to .cue | |
462 | strncpy(cuename, isofile, sizeof(cuename)); | |
463 | cuename[MAXPATHLEN - 1] = '\0'; | |
464 | if (strlen(cuename) >= 4) { | |
465 | strcpy(cuename + strlen(cuename) - 4, ".cue"); | |
466 | } | |
467 | else { | |
468 | return -1; | |
469 | } | |
470 | ||
471 | if ((fi = fopen(cuename, "r")) == NULL) { | |
472 | return -1; | |
473 | } | |
474 | ||
475 | // Some stupid tutorials wrongly tell users to use cdrdao to rip a | |
476 | // "bin/cue" image, which is in fact a "bin/toc" image. So let's check | |
477 | // that... | |
478 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
479 | if (!strncmp(linebuf, "CD_ROM_XA", 9)) { | |
480 | // Don't proceed further, as this is actually a .toc file rather | |
481 | // than a .cue file. | |
482 | fclose(fi); | |
483 | return parsetoc(isofile); | |
484 | } | |
485 | fseek(fi, 0, SEEK_SET); | |
486 | } | |
487 | ||
38b8102c | 488 | // build a path for files referenced in .cue |
489 | strncpy(filepath, cuename, sizeof(filepath)); | |
22bbabf6 | 490 | tmp = strrchr(filepath, '/'); |
38b8102c | 491 | if (tmp == NULL) |
22bbabf6 | 492 | tmp = strrchr(filepath, '\\'); |
493 | if (tmp != NULL) | |
494 | tmp++; | |
495 | else | |
38b8102c | 496 | tmp = filepath; |
497 | *tmp = 0; | |
498 | filepath[sizeof(filepath) - 1] = 0; | |
499 | incue_fname = tmp; | |
500 | incue_max_len = sizeof(filepath) - (tmp - filepath) - 1; | |
501 | ||
ef79bbde P |
502 | memset(&ti, 0, sizeof(ti)); |
503 | ||
19c03d80 | 504 | file_len = 0; |
505 | sector_offs = 2 * 75; | |
506 | ||
ef79bbde P |
507 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
508 | strncpy(dummy, linebuf, sizeof(linebuf)); | |
509 | token = strtok(dummy, " "); | |
510 | ||
511 | if (token == NULL) { | |
512 | continue; | |
513 | } | |
514 | ||
19c03d80 | 515 | if (!strcmp(token, "TRACK")) { |
ef79bbde P |
516 | numtracks++; |
517 | ||
77160d47 | 518 | sector_size = 0; |
ef79bbde P |
519 | if (strstr(linebuf, "AUDIO") != NULL) { |
520 | ti[numtracks].type = CDDA; | |
77160d47 | 521 | sector_size = 2352; |
ef79bbde | 522 | } |
77160d47 | 523 | else if (sscanf(linebuf, " TRACK %u MODE%u/%u", &t, &mode, §or_size) == 3) |
ef79bbde | 524 | ti[numtracks].type = DATA; |
77160d47 | 525 | else { |
526 | SysPrintf(".cue: failed to parse TRACK\n"); | |
527 | ti[numtracks].type = numtracks == 1 ? DATA : CDDA; | |
ef79bbde | 528 | } |
77160d47 | 529 | if (sector_size == 0) |
530 | sector_size = 2352; | |
ef79bbde P |
531 | } |
532 | else if (!strcmp(token, "INDEX")) { | |
77160d47 | 533 | if (sscanf(linebuf, " INDEX %02d %8s", &t, time) != 2) |
534 | SysPrintf(".cue: failed to parse INDEX\n"); | |
19c03d80 | 535 | tok2msf(time, (char *)&ti[numtracks].start); |
ef79bbde | 536 | |
19c03d80 | 537 | t = msf2sec(ti[numtracks].start); |
77160d47 | 538 | ti[numtracks].start_offset = t * sector_size; |
19c03d80 | 539 | t += sector_offs; |
ef79bbde | 540 | sec2msf(t, ti[numtracks].start); |
19c03d80 | 541 | |
542 | // default track length to file length | |
77160d47 | 543 | t = file_len - ti[numtracks].start_offset / sector_size; |
19c03d80 | 544 | sec2msf(t, ti[numtracks].length); |
545 | ||
546 | if (numtracks > 1 && ti[numtracks].handle == NULL) { | |
547 | // this track uses the same file as the last, | |
548 | // start of this track is last track's end | |
549 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
550 | sec2msf(t, ti[numtracks - 1].length); | |
38b8102c | 551 | } |
8aa91443 | 552 | if (numtracks > 1 && pregapOffset == -1) |
77160d47 | 553 | pregapOffset = ti[numtracks].start_offset / sector_size; |
19c03d80 | 554 | } |
555 | else if (!strcmp(token, "PREGAP")) { | |
556 | if (sscanf(linebuf, " PREGAP %8s", time) == 1) { | |
557 | tok2msf(time, dummy); | |
558 | sector_offs += msf2sec(dummy); | |
38b8102c | 559 | } |
8aa91443 | 560 | pregapOffset = -1; // mark to fill track start_offset |
19c03d80 | 561 | } |
562 | else if (!strcmp(token, "FILE")) { | |
9a9bcd78 | 563 | t = sscanf(linebuf, " FILE \"%255[^\"]\"", tmpb); |
385c023b | 564 | if (t != 1) |
9a9bcd78 | 565 | sscanf(linebuf, " FILE %255s", tmpb); |
19c03d80 | 566 | |
567 | // absolute path? | |
568 | ti[numtracks + 1].handle = fopen(tmpb, "rb"); | |
569 | if (ti[numtracks + 1].handle == NULL) { | |
570 | // relative to .cue? | |
571 | tmp = strrchr(tmpb, '\\'); | |
572 | if (tmp == NULL) | |
573 | tmp = strrchr(tmpb, '/'); | |
38b8102c | 574 | if (tmp != NULL) |
19c03d80 | 575 | tmp++; |
576 | else | |
577 | tmp = tmpb; | |
578 | strncpy(incue_fname, tmp, incue_max_len); | |
579 | ti[numtracks + 1].handle = fopen(filepath, "rb"); | |
38b8102c | 580 | } |
ef79bbde | 581 | |
19c03d80 | 582 | // update global offset if this is not first file in this .cue |
deebc67f | 583 | if (numtracks + 1 > 1) { |
584 | multifile = 1; | |
19c03d80 | 585 | sector_offs += file_len; |
deebc67f | 586 | } |
19c03d80 | 587 | |
588 | file_len = 0; | |
38b8102c | 589 | if (ti[numtracks + 1].handle == NULL) { |
19c03d80 | 590 | SysPrintf(_("\ncould not open: %s\n"), filepath); |
591 | continue; | |
38b8102c | 592 | } |
19c03d80 | 593 | fseek(ti[numtracks + 1].handle, 0, SEEK_END); |
594 | file_len = ftell(ti[numtracks + 1].handle) / 2352; | |
595 | ||
596 | if (numtracks == 0 && strlen(isofile) >= 4 && | |
597 | strcmp(isofile + strlen(isofile) - 4, ".cue") == 0) | |
598 | { | |
38b8102c | 599 | // user selected .cue as image file, use it's data track instead |
600 | fclose(cdHandle); | |
601 | cdHandle = fopen(filepath, "rb"); | |
ef79bbde P |
602 | } |
603 | } | |
604 | } | |
605 | ||
606 | fclose(fi); | |
607 | ||
ef79bbde P |
608 | return 0; |
609 | } | |
610 | ||
611 | // this function tries to get the .ccd file of the given .img | |
612 | // the necessary data is put into the ti (trackinformation)-array | |
613 | static int parseccd(const char *isofile) { | |
614 | char ccdname[MAXPATHLEN]; | |
615 | FILE *fi; | |
616 | char linebuf[256]; | |
617 | unsigned int t; | |
618 | ||
619 | numtracks = 0; | |
620 | ||
621 | // copy name of the iso and change extension from .img to .ccd | |
622 | strncpy(ccdname, isofile, sizeof(ccdname)); | |
623 | ccdname[MAXPATHLEN - 1] = '\0'; | |
624 | if (strlen(ccdname) >= 4) { | |
625 | strcpy(ccdname + strlen(ccdname) - 4, ".ccd"); | |
626 | } | |
627 | else { | |
628 | return -1; | |
629 | } | |
630 | ||
631 | if ((fi = fopen(ccdname, "r")) == NULL) { | |
632 | return -1; | |
633 | } | |
634 | ||
635 | memset(&ti, 0, sizeof(ti)); | |
636 | ||
637 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
638 | if (!strncmp(linebuf, "[TRACK", 6)){ | |
639 | numtracks++; | |
640 | } | |
641 | else if (!strncmp(linebuf, "MODE=", 5)) { | |
642 | sscanf(linebuf, "MODE=%d", &t); | |
643 | ti[numtracks].type = ((t == 0) ? CDDA : DATA); | |
644 | } | |
645 | else if (!strncmp(linebuf, "INDEX 1=", 8)) { | |
646 | sscanf(linebuf, "INDEX 1=%d", &t); | |
647 | sec2msf(t + 2 * 75, ti[numtracks].start); | |
77160d47 | 648 | ti[numtracks].start_offset = t * 2352; |
ef79bbde P |
649 | |
650 | // If we've already seen another track, this is its end | |
651 | if (numtracks > 1) { | |
652 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
653 | sec2msf(t, ti[numtracks - 1].length); | |
654 | } | |
655 | } | |
656 | } | |
657 | ||
658 | fclose(fi); | |
659 | ||
660 | // Fill out the last track's end based on size | |
661 | if (numtracks >= 1) { | |
662 | fseek(cdHandle, 0, SEEK_END); | |
663 | t = ftell(cdHandle) / 2352 - msf2sec(ti[numtracks].start) + 2 * 75; | |
664 | sec2msf(t, ti[numtracks].length); | |
665 | } | |
666 | ||
667 | return 0; | |
668 | } | |
669 | ||
670 | // this function tries to get the .mds file of the given .mdf | |
671 | // the necessary data is put into the ti (trackinformation)-array | |
672 | static int parsemds(const char *isofile) { | |
673 | char mdsname[MAXPATHLEN]; | |
674 | FILE *fi; | |
675 | unsigned int offset, extra_offset, l, i; | |
676 | unsigned short s; | |
677 | ||
678 | numtracks = 0; | |
679 | ||
680 | // copy name of the iso and change extension from .mdf to .mds | |
681 | strncpy(mdsname, isofile, sizeof(mdsname)); | |
682 | mdsname[MAXPATHLEN - 1] = '\0'; | |
683 | if (strlen(mdsname) >= 4) { | |
684 | strcpy(mdsname + strlen(mdsname) - 4, ".mds"); | |
685 | } | |
686 | else { | |
687 | return -1; | |
688 | } | |
689 | ||
690 | if ((fi = fopen(mdsname, "rb")) == NULL) { | |
691 | return -1; | |
692 | } | |
693 | ||
694 | memset(&ti, 0, sizeof(ti)); | |
695 | ||
696 | // check if it's a valid mds file | |
697 | fread(&i, 1, sizeof(unsigned int), fi); | |
698 | i = SWAP32(i); | |
699 | if (i != 0x4944454D) { | |
700 | // not an valid mds file | |
701 | fclose(fi); | |
702 | return -1; | |
703 | } | |
704 | ||
705 | // get offset to session block | |
706 | fseek(fi, 0x50, SEEK_SET); | |
707 | fread(&offset, 1, sizeof(unsigned int), fi); | |
708 | offset = SWAP32(offset); | |
709 | ||
710 | // get total number of tracks | |
711 | offset += 14; | |
712 | fseek(fi, offset, SEEK_SET); | |
713 | fread(&s, 1, sizeof(unsigned short), fi); | |
714 | s = SWAP16(s); | |
715 | numtracks = s; | |
716 | ||
717 | // get offset to track blocks | |
718 | fseek(fi, 4, SEEK_CUR); | |
719 | fread(&offset, 1, sizeof(unsigned int), fi); | |
720 | offset = SWAP32(offset); | |
721 | ||
722 | // skip lead-in data | |
723 | while (1) { | |
724 | fseek(fi, offset + 4, SEEK_SET); | |
725 | if (fgetc(fi) < 0xA0) { | |
726 | break; | |
727 | } | |
728 | offset += 0x50; | |
729 | } | |
730 | ||
731 | // check if the image contains mixed subchannel data | |
732 | fseek(fi, offset + 1, SEEK_SET); | |
77160d47 | 733 | subChanMixed = subChanRaw = (fgetc(fi) ? TRUE : FALSE); |
ef79bbde P |
734 | |
735 | // read track data | |
736 | for (i = 1; i <= numtracks; i++) { | |
737 | fseek(fi, offset, SEEK_SET); | |
738 | ||
739 | // get the track type | |
740 | ti[i].type = ((fgetc(fi) == 0xA9) ? CDDA : DATA); | |
741 | fseek(fi, 8, SEEK_CUR); | |
742 | ||
743 | // get the track starting point | |
744 | ti[i].start[0] = fgetc(fi); | |
745 | ti[i].start[1] = fgetc(fi); | |
746 | ti[i].start[2] = fgetc(fi); | |
747 | ||
ef79bbde P |
748 | fread(&extra_offset, 1, sizeof(unsigned int), fi); |
749 | extra_offset = SWAP32(extra_offset); | |
750 | ||
19c03d80 | 751 | // get track start offset (in .mdf) |
752 | fseek(fi, offset + 0x28, SEEK_SET); | |
753 | fread(&l, 1, sizeof(unsigned int), fi); | |
754 | l = SWAP32(l); | |
77160d47 | 755 | ti[i].start_offset = l; |
19c03d80 | 756 | |
8aa91443 | 757 | // get pregap |
758 | fseek(fi, extra_offset, SEEK_SET); | |
759 | fread(&l, 1, sizeof(unsigned int), fi); | |
760 | l = SWAP32(l); | |
761 | if (l != 0 && i > 1) | |
77160d47 | 762 | pregapOffset = msf2sec(ti[i].start); |
8aa91443 | 763 | |
764 | // get the track length | |
765 | fread(&l, 1, sizeof(unsigned int), fi); | |
766 | l = SWAP32(l); | |
767 | sec2msf(l, ti[i].length); | |
768 | ||
ef79bbde P |
769 | offset += 0x50; |
770 | } | |
771 | ||
772 | fclose(fi); | |
773 | return 0; | |
774 | } | |
775 | ||
0877957a | 776 | static int handlepbp(const char *isofile) { |
9a92bffb | 777 | struct { |
778 | unsigned int sig; | |
779 | unsigned int dontcare[8]; | |
780 | unsigned int psar_offs; | |
781 | } pbp_hdr; | |
782 | struct { | |
783 | unsigned char type; | |
784 | unsigned char pad0; | |
785 | unsigned char track; | |
786 | char index0[3]; | |
787 | char pad1; | |
788 | char index1[3]; | |
789 | } toc_entry; | |
790 | struct { | |
791 | unsigned int offset; | |
792 | unsigned int size; | |
793 | unsigned int dontcare[6]; | |
794 | } index_entry; | |
0c2871a7 | 795 | char psar_sig[11]; |
cc376814 | 796 | off_t psisoimg_offs, cdimg_base; |
797 | unsigned int t, cd_length; | |
798 | unsigned int offsettab[8]; | |
9a92bffb | 799 | const char *ext = NULL; |
800 | int i, ret; | |
801 | ||
802 | if (strlen(isofile) >= 4) | |
803 | ext = isofile + strlen(isofile) - 4; | |
804 | if (ext == NULL || (strcmp(ext, ".pbp") != 0 && strcmp(ext, ".PBP") != 0)) | |
805 | return -1; | |
806 | ||
cc376814 | 807 | fseeko(cdHandle, 0, SEEK_SET); |
9726a4af | 808 | |
9a92bffb | 809 | numtracks = 0; |
810 | ||
811 | ret = fread(&pbp_hdr, 1, sizeof(pbp_hdr), cdHandle); | |
812 | if (ret != sizeof(pbp_hdr)) { | |
f29fbd53 | 813 | SysPrintf("failed to read pbp\n"); |
9a92bffb | 814 | goto fail_io; |
815 | } | |
816 | ||
cc376814 | 817 | ret = fseeko(cdHandle, pbp_hdr.psar_offs, SEEK_SET); |
9a92bffb | 818 | if (ret != 0) { |
f29fbd53 | 819 | SysPrintf("failed to seek to %x\n", pbp_hdr.psar_offs); |
9a92bffb | 820 | goto fail_io; |
821 | } | |
822 | ||
0c2871a7 | 823 | psisoimg_offs = pbp_hdr.psar_offs; |
9a92bffb | 824 | fread(psar_sig, 1, sizeof(psar_sig), cdHandle); |
0c2871a7 | 825 | psar_sig[10] = 0; |
826 | if (strcmp(psar_sig, "PSTITLEIMG") == 0) { | |
827 | // multidisk image? | |
cc376814 | 828 | ret = fseeko(cdHandle, pbp_hdr.psar_offs + 0x200, SEEK_SET); |
0c2871a7 | 829 | if (ret != 0) { |
f29fbd53 | 830 | SysPrintf("failed to seek to %x\n", pbp_hdr.psar_offs + 0x200); |
0c2871a7 | 831 | goto fail_io; |
832 | } | |
833 | ||
834 | if (fread(&offsettab, 1, sizeof(offsettab), cdHandle) != sizeof(offsettab)) { | |
f29fbd53 | 835 | SysPrintf("failed to read offsettab\n"); |
0c2871a7 | 836 | goto fail_io; |
837 | } | |
838 | ||
839 | for (i = 0; i < sizeof(offsettab) / sizeof(offsettab[0]); i++) { | |
840 | if (offsettab[i] == 0) | |
841 | break; | |
842 | } | |
843 | cdrIsoMultidiskCount = i; | |
844 | if (cdrIsoMultidiskCount == 0) { | |
f29fbd53 | 845 | SysPrintf("multidisk eboot has 0 images?\n"); |
0c2871a7 | 846 | goto fail_io; |
847 | } | |
848 | ||
849 | if (cdrIsoMultidiskSelect >= cdrIsoMultidiskCount) | |
850 | cdrIsoMultidiskSelect = 0; | |
851 | ||
852 | psisoimg_offs += offsettab[cdrIsoMultidiskSelect]; | |
853 | ||
cc376814 | 854 | ret = fseeko(cdHandle, psisoimg_offs, SEEK_SET); |
0c2871a7 | 855 | if (ret != 0) { |
cc376814 | 856 | SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs); |
0c2871a7 | 857 | goto fail_io; |
858 | } | |
859 | ||
860 | fread(psar_sig, 1, sizeof(psar_sig), cdHandle); | |
861 | psar_sig[10] = 0; | |
862 | } | |
863 | ||
864 | if (strcmp(psar_sig, "PSISOIMG00") != 0) { | |
f29fbd53 | 865 | SysPrintf("bad psar_sig: %s\n", psar_sig); |
9a92bffb | 866 | goto fail_io; |
867 | } | |
868 | ||
869 | // seek to TOC | |
cc376814 | 870 | ret = fseeko(cdHandle, psisoimg_offs + 0x800, SEEK_SET); |
9a92bffb | 871 | if (ret != 0) { |
cc376814 | 872 | SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs + 0x800); |
9a92bffb | 873 | goto fail_io; |
874 | } | |
875 | ||
876 | // first 3 entries are special | |
877 | fseek(cdHandle, sizeof(toc_entry), SEEK_CUR); | |
878 | fread(&toc_entry, 1, sizeof(toc_entry), cdHandle); | |
879 | numtracks = btoi(toc_entry.index1[0]); | |
880 | ||
881 | fread(&toc_entry, 1, sizeof(toc_entry), cdHandle); | |
882 | cd_length = btoi(toc_entry.index1[0]) * 60 * 75 + | |
883 | btoi(toc_entry.index1[1]) * 75 + btoi(toc_entry.index1[2]); | |
884 | ||
885 | for (i = 1; i <= numtracks; i++) { | |
886 | fread(&toc_entry, 1, sizeof(toc_entry), cdHandle); | |
887 | ||
888 | ti[i].type = (toc_entry.type == 1) ? CDDA : DATA; | |
889 | ||
890 | ti[i].start_offset = btoi(toc_entry.index0[0]) * 60 * 75 + | |
891 | btoi(toc_entry.index0[1]) * 75 + btoi(toc_entry.index0[2]); | |
77160d47 | 892 | ti[i].start_offset *= 2352; |
9a92bffb | 893 | ti[i].start[0] = btoi(toc_entry.index1[0]); |
894 | ti[i].start[1] = btoi(toc_entry.index1[1]); | |
895 | ti[i].start[2] = btoi(toc_entry.index1[2]); | |
896 | ||
897 | if (i > 1) { | |
898 | t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start); | |
899 | sec2msf(t, ti[i - 1].length); | |
900 | } | |
901 | } | |
77160d47 | 902 | t = cd_length - ti[numtracks].start_offset / 2352; |
9a92bffb | 903 | sec2msf(t, ti[numtracks].length); |
904 | ||
905 | // seek to ISO index | |
cc376814 | 906 | ret = fseeko(cdHandle, psisoimg_offs + 0x4000, SEEK_SET); |
9a92bffb | 907 | if (ret != 0) { |
f29fbd53 | 908 | SysPrintf("failed to seek to ISO index\n"); |
9a92bffb | 909 | goto fail_io; |
910 | } | |
911 | ||
912 | compr_img = calloc(1, sizeof(*compr_img)); | |
913 | if (compr_img == NULL) | |
914 | goto fail_io; | |
915 | ||
0877957a | 916 | compr_img->block_shift = 4; |
9a92bffb | 917 | compr_img->current_block = (unsigned int)-1; |
918 | ||
919 | compr_img->index_len = (0x100000 - 0x4000) / sizeof(index_entry); | |
920 | compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); | |
921 | if (compr_img->index_table == NULL) | |
922 | goto fail_io; | |
923 | ||
0c2871a7 | 924 | cdimg_base = psisoimg_offs + 0x100000; |
9a92bffb | 925 | for (i = 0; i < compr_img->index_len; i++) { |
926 | ret = fread(&index_entry, 1, sizeof(index_entry), cdHandle); | |
927 | if (ret != sizeof(index_entry)) { | |
f29fbd53 | 928 | SysPrintf("failed to read index_entry #%d\n", i); |
9a92bffb | 929 | goto fail_index; |
930 | } | |
931 | ||
932 | if (index_entry.size == 0) | |
933 | break; | |
934 | ||
935 | compr_img->index_table[i] = cdimg_base + index_entry.offset; | |
936 | } | |
937 | compr_img->index_table[i] = cdimg_base + index_entry.offset + index_entry.size; | |
938 | ||
939 | return 0; | |
940 | ||
941 | fail_index: | |
942 | free(compr_img->index_table); | |
943 | compr_img->index_table = NULL; | |
944 | fail_io: | |
0877957a | 945 | if (compr_img != NULL) { |
946 | free(compr_img); | |
947 | compr_img = NULL; | |
948 | } | |
949 | return -1; | |
950 | } | |
951 | ||
952 | static int handlecbin(const char *isofile) { | |
953 | struct | |
954 | { | |
955 | char magic[4]; | |
956 | unsigned int header_size; | |
957 | unsigned long long total_bytes; | |
958 | unsigned int block_size; | |
959 | unsigned char ver; // 1 | |
960 | unsigned char align; | |
961 | unsigned char rsv_06[2]; | |
962 | } ciso_hdr; | |
963 | const char *ext = NULL; | |
cc376814 | 964 | unsigned int *index_table = NULL; |
0c2871a7 | 965 | unsigned int index = 0, plain; |
0877957a | 966 | int i, ret; |
967 | ||
968 | if (strlen(isofile) >= 5) | |
969 | ext = isofile + strlen(isofile) - 5; | |
970 | if (ext == NULL || (strcasecmp(ext + 1, ".cbn") != 0 && strcasecmp(ext, ".cbin") != 0)) | |
971 | return -1; | |
972 | ||
9726a4af | 973 | fseek(cdHandle, 0, SEEK_SET); |
974 | ||
0877957a | 975 | ret = fread(&ciso_hdr, 1, sizeof(ciso_hdr), cdHandle); |
976 | if (ret != sizeof(ciso_hdr)) { | |
f29fbd53 | 977 | SysPrintf("failed to read ciso header\n"); |
0877957a | 978 | return -1; |
979 | } | |
980 | ||
981 | if (strncmp(ciso_hdr.magic, "CISO", 4) != 0 || ciso_hdr.total_bytes <= 0 || ciso_hdr.block_size <= 0) { | |
f29fbd53 | 982 | SysPrintf("bad ciso header\n"); |
0877957a | 983 | return -1; |
984 | } | |
985 | if (ciso_hdr.header_size != 0 && ciso_hdr.header_size != sizeof(ciso_hdr)) { | |
cc376814 | 986 | ret = fseeko(cdHandle, ciso_hdr.header_size, SEEK_SET); |
0877957a | 987 | if (ret != 0) { |
f29fbd53 | 988 | SysPrintf("failed to seek to %x\n", ciso_hdr.header_size); |
0877957a | 989 | return -1; |
990 | } | |
991 | } | |
992 | ||
993 | compr_img = calloc(1, sizeof(*compr_img)); | |
994 | if (compr_img == NULL) | |
995 | goto fail_io; | |
996 | ||
997 | compr_img->block_shift = 0; | |
998 | compr_img->current_block = (unsigned int)-1; | |
999 | ||
1000 | compr_img->index_len = ciso_hdr.total_bytes / ciso_hdr.block_size; | |
cc376814 | 1001 | index_table = malloc((compr_img->index_len + 1) * sizeof(index_table[0])); |
1002 | if (index_table == NULL) | |
0877957a | 1003 | goto fail_io; |
1004 | ||
cc376814 | 1005 | ret = fread(index_table, sizeof(index_table[0]), compr_img->index_len, cdHandle); |
0877957a | 1006 | if (ret != compr_img->index_len) { |
f29fbd53 | 1007 | SysPrintf("failed to read index table\n"); |
0877957a | 1008 | goto fail_index; |
1009 | } | |
1010 | ||
cc376814 | 1011 | compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); |
1012 | if (compr_img->index_table == NULL) | |
1013 | goto fail_index; | |
1014 | ||
0877957a | 1015 | for (i = 0; i < compr_img->index_len + 1; i++) { |
cc376814 | 1016 | index = index_table[i]; |
0877957a | 1017 | plain = index & 0x80000000; |
1018 | index &= 0x7fffffff; | |
cc376814 | 1019 | compr_img->index_table[i] = (off_t)index << ciso_hdr.align; |
1020 | if (plain) | |
1021 | compr_img->index_table[i] |= OFF_T_MSB; | |
0877957a | 1022 | } |
0877957a | 1023 | |
1024 | return 0; | |
1025 | ||
1026 | fail_index: | |
cc376814 | 1027 | free(index_table); |
0877957a | 1028 | fail_io: |
1029 | if (compr_img != NULL) { | |
1030 | free(compr_img); | |
1031 | compr_img = NULL; | |
1032 | } | |
9a92bffb | 1033 | return -1; |
1034 | } | |
1035 | ||
ef79bbde P |
1036 | // this function tries to get the .sub file of the given .img |
1037 | static int opensubfile(const char *isoname) { | |
1038 | char subname[MAXPATHLEN]; | |
1039 | ||
1040 | // copy name of the iso and change extension from .img to .sub | |
1041 | strncpy(subname, isoname, sizeof(subname)); | |
1042 | subname[MAXPATHLEN - 1] = '\0'; | |
1043 | if (strlen(subname) >= 4) { | |
1044 | strcpy(subname + strlen(subname) - 4, ".sub"); | |
1045 | } | |
1046 | else { | |
1047 | return -1; | |
1048 | } | |
1049 | ||
1050 | subHandle = fopen(subname, "rb"); | |
1051 | if (subHandle == NULL) { | |
1052 | return -1; | |
1053 | } | |
1054 | ||
1055 | return 0; | |
1056 | } | |
1057 | ||
ae4e7dc9 | 1058 | static int opensbifile(const char *isoname) { |
1059 | char sbiname[MAXPATHLEN]; | |
1060 | int s; | |
1061 | ||
1062 | strncpy(sbiname, isoname, sizeof(sbiname)); | |
1063 | sbiname[MAXPATHLEN - 1] = '\0'; | |
1064 | if (strlen(sbiname) >= 4) { | |
1065 | strcpy(sbiname + strlen(sbiname) - 4, ".sbi"); | |
1066 | } | |
1067 | else { | |
1068 | return -1; | |
1069 | } | |
1070 | ||
1071 | fseek(cdHandle, 0, SEEK_END); | |
1072 | s = ftell(cdHandle) / 2352; | |
1073 | ||
1074 | return LoadSBI(sbiname, s); | |
1075 | } | |
1076 | ||
77160d47 | 1077 | static int cdread_normal(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1078 | { |
77160d47 | 1079 | fseek(f, base + sector * CD_FRAMESIZE_RAW, SEEK_SET); |
81abe4d5 | 1080 | return fread(dest, 1, CD_FRAMESIZE_RAW, f); |
9a92bffb | 1081 | } |
1082 | ||
77160d47 | 1083 | static int cdread_sub_mixed(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1084 | { |
1085 | int ret; | |
1086 | ||
77160d47 | 1087 | fseek(f, base + sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE), SEEK_SET); |
81abe4d5 | 1088 | ret = fread(dest, 1, CD_FRAMESIZE_RAW, f); |
9a92bffb | 1089 | fread(subbuffer, 1, SUB_FRAMESIZE, f); |
1090 | ||
1091 | if (subChanRaw) DecodeRawSubData(); | |
1092 | ||
1093 | return ret; | |
1094 | } | |
1095 | ||
6e1725ab | 1096 | static int uncomp2(void *out, unsigned long *out_size, void *in, unsigned long in_size) |
9a92bffb | 1097 | { |
1098 | static z_stream z; | |
1099 | int ret = 0; | |
1100 | ||
1101 | if (z.zalloc == NULL) { | |
1102 | // XXX: one-time leak here.. | |
1103 | z.next_in = Z_NULL; | |
1104 | z.avail_in = 0; | |
1105 | z.zalloc = Z_NULL; | |
1106 | z.zfree = Z_NULL; | |
1107 | z.opaque = Z_NULL; | |
1108 | ret = inflateInit2(&z, -15); | |
1109 | } | |
1110 | else | |
1111 | ret = inflateReset(&z); | |
1112 | if (ret != Z_OK) | |
1113 | return ret; | |
1114 | ||
1115 | z.next_in = in; | |
1116 | z.avail_in = in_size; | |
1117 | z.next_out = out; | |
1118 | z.avail_out = *out_size; | |
1119 | ||
1120 | ret = inflate(&z, Z_NO_FLUSH); | |
1121 | //inflateEnd(&z); | |
1122 | ||
1123 | *out_size -= z.avail_out; | |
1124 | return ret == 1 ? 0 : ret; | |
1125 | } | |
1126 | ||
77160d47 | 1127 | static int cdread_compressed(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1128 | { |
0877957a | 1129 | unsigned long cdbuffer_size, cdbuffer_size_expect; |
cc376814 | 1130 | unsigned int size; |
0877957a | 1131 | int is_compressed; |
cc376814 | 1132 | off_t start_byte; |
9a92bffb | 1133 | int ret, block; |
1134 | ||
77160d47 | 1135 | if (base) |
1136 | sector += base / 2352; | |
1137 | ||
0877957a | 1138 | block = sector >> compr_img->block_shift; |
1139 | compr_img->sector_in_blk = sector & ((1 << compr_img->block_shift) - 1); | |
9a92bffb | 1140 | |
1141 | if (block == compr_img->current_block) { | |
1142 | //printf("hit sect %d\n", sector); | |
1143 | goto finish; | |
1144 | } | |
1145 | ||
1146 | if (sector >= compr_img->index_len * 16) { | |
f29fbd53 | 1147 | SysPrintf("sector %d is past img end\n", sector); |
9a92bffb | 1148 | return -1; |
1149 | } | |
1150 | ||
cc376814 | 1151 | start_byte = compr_img->index_table[block] & ~OFF_T_MSB; |
1152 | if (fseeko(cdHandle, start_byte, SEEK_SET) != 0) { | |
1153 | SysPrintf("seek error for block %d at %llx: ", | |
1154 | block, (long long)start_byte); | |
9a92bffb | 1155 | perror(NULL); |
1156 | return -1; | |
1157 | } | |
1158 | ||
cc376814 | 1159 | is_compressed = !(compr_img->index_table[block] & OFF_T_MSB); |
1160 | size = (compr_img->index_table[block + 1] & ~OFF_T_MSB) - start_byte; | |
9a92bffb | 1161 | if (size > sizeof(compr_img->buff_compressed)) { |
f29fbd53 | 1162 | SysPrintf("block %d is too large: %u\n", block, size); |
9a92bffb | 1163 | return -1; |
1164 | } | |
1165 | ||
0877957a | 1166 | if (fread(is_compressed ? compr_img->buff_compressed : compr_img->buff_raw[0], |
1167 | 1, size, cdHandle) != size) { | |
f29fbd53 | 1168 | SysPrintf("read error for block %d at %x: ", block, start_byte); |
9a92bffb | 1169 | perror(NULL); |
1170 | return -1; | |
1171 | } | |
1172 | ||
0877957a | 1173 | if (is_compressed) { |
1174 | cdbuffer_size_expect = sizeof(compr_img->buff_raw[0]) << compr_img->block_shift; | |
1175 | cdbuffer_size = cdbuffer_size_expect; | |
6e1725ab | 1176 | ret = uncomp2(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size); |
0877957a | 1177 | if (ret != 0) { |
f29fbd53 | 1178 | SysPrintf("uncompress failed with %d for block %d, sector %d\n", |
0877957a | 1179 | ret, block, sector); |
1180 | return -1; | |
1181 | } | |
1182 | if (cdbuffer_size != cdbuffer_size_expect) | |
f29fbd53 | 1183 | SysPrintf("cdbuffer_size: %lu != %lu, sector %d\n", cdbuffer_size, |
0877957a | 1184 | cdbuffer_size_expect, sector); |
9a92bffb | 1185 | } |
9a92bffb | 1186 | |
1187 | // done at last! | |
1188 | compr_img->current_block = block; | |
1189 | ||
1190 | finish: | |
1191 | if (dest != cdbuffer) // copy avoid HACK | |
81abe4d5 | 1192 | memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk], |
1193 | CD_FRAMESIZE_RAW); | |
1194 | return CD_FRAMESIZE_RAW; | |
9a92bffb | 1195 | } |
1196 | ||
77160d47 | 1197 | static int cdread_2048(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1198 | { |
1199 | int ret; | |
1200 | ||
77160d47 | 1201 | fseek(f, base + sector * 2048, SEEK_SET); |
81abe4d5 | 1202 | ret = fread((char *)dest + 12 * 2, 1, 2048, f); |
9a92bffb | 1203 | |
1204 | // not really necessary, fake mode 2 header | |
81abe4d5 | 1205 | memset(cdbuffer, 0, 12 * 2); |
1206 | sec2msf(sector + 2 * 75, (char *)&cdbuffer[12]); | |
1207 | cdbuffer[12 + 3] = 1; | |
9a92bffb | 1208 | |
1209 | return ret; | |
1210 | } | |
1211 | ||
1212 | static unsigned char * CALLBACK ISOgetBuffer_compr(void) { | |
1213 | return compr_img->buff_raw[compr_img->sector_in_blk] + 12; | |
1214 | } | |
1215 | ||
1216 | static unsigned char * CALLBACK ISOgetBuffer(void) { | |
81abe4d5 | 1217 | return cdbuffer + 12; |
9a92bffb | 1218 | } |
1219 | ||
ef79bbde P |
1220 | static void PrintTracks(void) { |
1221 | int i; | |
1222 | ||
1223 | for (i = 1; i <= numtracks; i++) { | |
1224 | SysPrintf(_("Track %.2d (%s) - Start %.2d:%.2d:%.2d, Length %.2d:%.2d:%.2d\n"), | |
1225 | i, (ti[i].type == DATA ? "DATA" : "AUDIO"), | |
1226 | ti[i].start[0], ti[i].start[1], ti[i].start[2], | |
1227 | ti[i].length[0], ti[i].length[1], ti[i].length[2]); | |
1228 | } | |
1229 | } | |
1230 | ||
1231 | // This function is invoked by the front-end when opening an ISO | |
1232 | // file for playback | |
1233 | static long CALLBACK ISOopen(void) { | |
9a92bffb | 1234 | boolean isMode1ISO = FALSE; |
689e0447 | 1235 | char alt_bin_filename[MAXPATHLEN]; |
1236 | const char *bin_filename; | |
9a92bffb | 1237 | |
ef79bbde P |
1238 | if (cdHandle != NULL) { |
1239 | return 0; // it's already open | |
1240 | } | |
1241 | ||
1242 | cdHandle = fopen(GetIsoFile(), "rb"); | |
1243 | if (cdHandle == NULL) { | |
2e058581 | 1244 | SysPrintf(_("Could't open '%s' for reading: %s\n"), |
1245 | GetIsoFile(), strerror(errno)); | |
ef79bbde P |
1246 | return -1; |
1247 | } | |
1248 | ||
1249 | SysPrintf(_("Loaded CD Image: %s"), GetIsoFile()); | |
1250 | ||
1251 | cddaBigEndian = FALSE; | |
1252 | subChanMixed = FALSE; | |
1253 | subChanRaw = FALSE; | |
8aa91443 | 1254 | pregapOffset = 0; |
0c2871a7 | 1255 | cdrIsoMultidiskCount = 1; |
deebc67f | 1256 | multifile = 0; |
ef79bbde | 1257 | |
9a92bffb | 1258 | CDR_getBuffer = ISOgetBuffer; |
1259 | cdimg_read_func = cdread_normal; | |
1260 | ||
92f43ab0 | 1261 | if (parsetoc(GetIsoFile()) == 0) { |
ef79bbde P |
1262 | SysPrintf("[+toc]"); |
1263 | } | |
1264 | else if (parseccd(GetIsoFile()) == 0) { | |
1265 | SysPrintf("[+ccd]"); | |
1266 | } | |
1267 | else if (parsemds(GetIsoFile()) == 0) { | |
1268 | SysPrintf("[+mds]"); | |
1269 | } | |
92f43ab0 | 1270 | else if (parsecue(GetIsoFile()) == 0) { |
1271 | SysPrintf("[+cue]"); | |
1272 | } | |
0877957a | 1273 | if (handlepbp(GetIsoFile()) == 0) { |
9a92bffb | 1274 | SysPrintf("[pbp]"); |
1275 | CDR_getBuffer = ISOgetBuffer_compr; | |
1276 | cdimg_read_func = cdread_compressed; | |
1277 | } | |
0877957a | 1278 | else if (handlecbin(GetIsoFile()) == 0) { |
1279 | SysPrintf("[cbin]"); | |
1280 | CDR_getBuffer = ISOgetBuffer_compr; | |
1281 | cdimg_read_func = cdread_compressed; | |
1282 | } | |
ef79bbde P |
1283 | |
1284 | if (!subChanMixed && opensubfile(GetIsoFile()) == 0) { | |
1285 | SysPrintf("[+sub]"); | |
1286 | } | |
ae4e7dc9 | 1287 | if (opensbifile(GetIsoFile()) == 0) { |
1288 | SysPrintf("[+sbi]"); | |
1289 | } | |
ef79bbde | 1290 | |
cc376814 | 1291 | fseeko(cdHandle, 0, SEEK_END); |
c9e5423e | 1292 | |
1293 | // maybe user selected metadata file instead of main .bin .. | |
689e0447 | 1294 | bin_filename = GetIsoFile(); |
cc376814 | 1295 | if (ftello(cdHandle) < 2352 * 0x10) { |
c9e5423e | 1296 | static const char *exts[] = { ".bin", ".BIN", ".img", ".IMG" }; |
689e0447 | 1297 | FILE *tmpf = NULL; |
c9e5423e | 1298 | size_t i; |
689e0447 | 1299 | char *p; |
c9e5423e | 1300 | |
689e0447 | 1301 | strncpy(alt_bin_filename, bin_filename, sizeof(alt_bin_filename)); |
1302 | alt_bin_filename[MAXPATHLEN - 1] = '\0'; | |
1303 | if (strlen(alt_bin_filename) >= 4) { | |
1304 | p = alt_bin_filename + strlen(alt_bin_filename) - 4; | |
c9e5423e | 1305 | for (i = 0; i < sizeof(exts) / sizeof(exts[0]); i++) { |
1306 | strcpy(p, exts[i]); | |
689e0447 | 1307 | tmpf = fopen(alt_bin_filename, "rb"); |
1308 | if (tmpf != NULL) | |
c9e5423e | 1309 | break; |
c9e5423e | 1310 | } |
1311 | } | |
689e0447 | 1312 | if (tmpf != NULL) { |
1313 | bin_filename = alt_bin_filename; | |
1314 | fclose(cdHandle); | |
1315 | cdHandle = tmpf; | |
cc376814 | 1316 | fseeko(cdHandle, 0, SEEK_END); |
689e0447 | 1317 | } |
c9e5423e | 1318 | } |
1319 | ||
1320 | // guess whether it is mode1/2048 | |
cc376814 | 1321 | if (ftello(cdHandle) % 2048 == 0) { |
9a92bffb | 1322 | unsigned int modeTest = 0; |
1323 | fseek(cdHandle, 0, SEEK_SET); | |
1324 | fread(&modeTest, 4, 1, cdHandle); | |
1325 | if (SWAP32(modeTest) != 0xffffff00) { | |
1326 | SysPrintf("[2048]"); | |
1327 | isMode1ISO = TRUE; | |
1328 | } | |
1329 | } | |
1330 | fseek(cdHandle, 0, SEEK_SET); | |
1331 | ||
ef79bbde P |
1332 | SysPrintf(".\n"); |
1333 | ||
1334 | PrintTracks(); | |
1335 | ||
9a92bffb | 1336 | if (subChanMixed) |
1337 | cdimg_read_func = cdread_sub_mixed; | |
1338 | else if (isMode1ISO) | |
1339 | cdimg_read_func = cdread_2048; | |
1340 | ||
38b8102c | 1341 | // make sure we have another handle open for cdda |
1342 | if (numtracks > 1 && ti[1].handle == NULL) { | |
689e0447 | 1343 | ti[1].handle = fopen(bin_filename, "rb"); |
38b8102c | 1344 | } |
77160d47 | 1345 | cdda_cur_sector = 0; |
1346 | cdda_file_offset = 0; | |
38b8102c | 1347 | |
ef79bbde P |
1348 | return 0; |
1349 | } | |
1350 | ||
1351 | static long CALLBACK ISOclose(void) { | |
38b8102c | 1352 | int i; |
1353 | ||
ef79bbde P |
1354 | if (cdHandle != NULL) { |
1355 | fclose(cdHandle); | |
1356 | cdHandle = NULL; | |
1357 | } | |
1358 | if (subHandle != NULL) { | |
1359 | fclose(subHandle); | |
1360 | subHandle = NULL; | |
1361 | } | |
1362 | stopCDDA(); | |
38b8102c | 1363 | cddaHandle = NULL; |
1364 | ||
9a92bffb | 1365 | if (compr_img != NULL) { |
1366 | free(compr_img->index_table); | |
1367 | free(compr_img); | |
1368 | compr_img = NULL; | |
1369 | } | |
1370 | ||
38b8102c | 1371 | for (i = 1; i <= numtracks; i++) { |
1372 | if (ti[i].handle != NULL) { | |
1373 | fclose(ti[i].handle); | |
1374 | ti[i].handle = NULL; | |
1375 | } | |
1376 | } | |
1377 | numtracks = 0; | |
c0ee7ac6 | 1378 | ti[1].type = 0; |
ae4e7dc9 | 1379 | UnloadSBI(); |
38b8102c | 1380 | |
c0ee7ac6 | 1381 | memset(cdbuffer, 0, sizeof(cdbuffer)); |
1382 | CDR_getBuffer = ISOgetBuffer; | |
1383 | ||
38b8102c | 1384 | return 0; |
1385 | } | |
1386 | ||
1387 | static long CALLBACK ISOinit(void) { | |
1388 | assert(cdHandle == NULL); | |
1389 | assert(subHandle == NULL); | |
1390 | ||
1391 | return 0; // do nothing | |
1392 | } | |
1393 | ||
1394 | static long CALLBACK ISOshutdown(void) { | |
1395 | ISOclose(); | |
ef79bbde P |
1396 | return 0; |
1397 | } | |
1398 | ||
1399 | // return Starting and Ending Track | |
1400 | // buffer: | |
1401 | // byte 0 - start track | |
1402 | // byte 1 - end track | |
1403 | static long CALLBACK ISOgetTN(unsigned char *buffer) { | |
1404 | buffer[0] = 1; | |
1405 | ||
1406 | if (numtracks > 0) { | |
1407 | buffer[1] = numtracks; | |
1408 | } | |
1409 | else { | |
1410 | buffer[1] = 1; | |
1411 | } | |
1412 | ||
1413 | return 0; | |
1414 | } | |
1415 | ||
1416 | // return Track Time | |
1417 | // buffer: | |
1418 | // byte 0 - frame | |
1419 | // byte 1 - second | |
1420 | // byte 2 - minute | |
1421 | static long CALLBACK ISOgetTD(unsigned char track, unsigned char *buffer) { | |
858ad511 | 1422 | if (track == 0) { |
858ad511 | 1423 | unsigned int sect; |
1424 | unsigned char time[3]; | |
1425 | sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length); | |
ab948f7e | 1426 | sec2msf(sect, (char *)time); |
858ad511 | 1427 | buffer[2] = time[0]; |
1428 | buffer[1] = time[1]; | |
1429 | buffer[0] = time[2]; | |
1430 | } | |
1431 | else if (numtracks > 0 && track <= numtracks) { | |
ef79bbde P |
1432 | buffer[2] = ti[track].start[0]; |
1433 | buffer[1] = ti[track].start[1]; | |
1434 | buffer[0] = ti[track].start[2]; | |
1435 | } | |
1436 | else { | |
1437 | buffer[2] = 0; | |
1438 | buffer[1] = 2; | |
1439 | buffer[0] = 0; | |
1440 | } | |
1441 | ||
1442 | return 0; | |
1443 | } | |
1444 | ||
1445 | // decode 'raw' subchannel data ripped by cdrdao | |
1446 | static void DecodeRawSubData(void) { | |
1447 | unsigned char subQData[12]; | |
1448 | int i; | |
1449 | ||
1450 | memset(subQData, 0, sizeof(subQData)); | |
1451 | ||
1452 | for (i = 0; i < 8 * 12; i++) { | |
1453 | if (subbuffer[i] & (1 << 6)) { // only subchannel Q is needed | |
1454 | subQData[i >> 3] |= (1 << (7 - (i & 7))); | |
1455 | } | |
1456 | } | |
1457 | ||
1458 | memcpy(&subbuffer[12], subQData, 12); | |
1459 | } | |
1460 | ||
1461 | // read track | |
1462 | // time: byte 0 - minute; byte 1 - second; byte 2 - frame | |
1463 | // uses bcd format | |
1464 | static long CALLBACK ISOreadTrack(unsigned char *time) { | |
19c03d80 | 1465 | int sector = MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])); |
c0ee7ac6 | 1466 | long ret; |
19c03d80 | 1467 | |
ef79bbde P |
1468 | if (cdHandle == NULL) { |
1469 | return -1; | |
1470 | } | |
1471 | ||
8aa91443 | 1472 | if (pregapOffset) { |
1473 | subChanMissing = FALSE; | |
1474 | if (sector >= pregapOffset) { | |
1475 | sector -= 2 * 75; | |
1476 | if (sector < pregapOffset) | |
1477 | subChanMissing = TRUE; | |
1478 | } | |
1479 | } | |
1480 | ||
c0ee7ac6 | 1481 | ret = cdimg_read_func(cdHandle, 0, cdbuffer, sector); |
1482 | if (ret < 0) | |
1483 | return -1; | |
ef79bbde | 1484 | |
9a92bffb | 1485 | if (subHandle != NULL) { |
1486 | fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET); | |
1487 | fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); | |
ef79bbde | 1488 | |
9a92bffb | 1489 | if (subChanRaw) DecodeRawSubData(); |
ef79bbde P |
1490 | } |
1491 | ||
1492 | return 0; | |
1493 | } | |
1494 | ||
ef79bbde P |
1495 | // plays cdda audio |
1496 | // sector: byte 0 - minute; byte 1 - second; byte 2 - frame | |
1497 | // does NOT uses bcd format | |
1498 | static long CALLBACK ISOplay(unsigned char *time) { | |
77160d47 | 1499 | unsigned int i; |
38b8102c | 1500 | |
7b8da7ab | 1501 | if (numtracks <= 1) |
1502 | return 0; | |
1503 | ||
38b8102c | 1504 | // find the track |
77160d47 | 1505 | cdda_cur_sector = msf2sec((char *)time); |
2058d51f | 1506 | for (i = numtracks; i > 1; i--) { |
77160d47 | 1507 | cdda_first_sector = msf2sec(ti[i].start); |
1508 | if (cdda_first_sector <= cdda_cur_sector + 2 * 75) | |
38b8102c | 1509 | break; |
2058d51f | 1510 | } |
77160d47 | 1511 | cdda_file_offset = ti[i].start_offset; |
19c03d80 | 1512 | |
38b8102c | 1513 | // find the file that contains this track |
1514 | for (; i > 1; i--) | |
1515 | if (ti[i].handle != NULL) | |
1516 | break; | |
1517 | ||
2058d51f | 1518 | cddaHandle = ti[i].handle; |
8aa91443 | 1519 | |
77160d47 | 1520 | if (SPU_playCDDAchannel != NULL) |
1521 | startCDDA(); | |
1522 | ||
ef79bbde P |
1523 | return 0; |
1524 | } | |
1525 | ||
1526 | // stops cdda audio | |
1527 | static long CALLBACK ISOstop(void) { | |
1528 | stopCDDA(); | |
1529 | return 0; | |
1530 | } | |
1531 | ||
1532 | // gets subchannel data | |
1533 | static unsigned char* CALLBACK ISOgetBufferSub(void) { | |
8aa91443 | 1534 | if ((subHandle != NULL || subChanMixed) && !subChanMissing) { |
ef79bbde P |
1535 | return subbuffer; |
1536 | } | |
1537 | ||
1538 | return NULL; | |
1539 | } | |
1540 | ||
1541 | static long CALLBACK ISOgetStatus(struct CdrStat *stat) { | |
deebc67f | 1542 | u32 sect; |
1543 | ||
ef79bbde | 1544 | CDR__getStatus(stat); |
deebc67f | 1545 | |
ef79bbde P |
1546 | if (playing) { |
1547 | stat->Type = 0x02; | |
1548 | stat->Status |= 0x80; | |
ef79bbde P |
1549 | } |
1550 | else { | |
deebc67f | 1551 | // BIOS - boot ID (CD type) |
1552 | stat->Type = ti[1].type; | |
1553 | } | |
1554 | ||
1555 | // relative -> absolute time | |
1556 | sect = cddaCurPos; | |
1557 | sec2msf(sect, (char *)stat->Time); | |
1558 | ||
1559 | return 0; | |
1560 | } | |
1561 | ||
1562 | // read CDDA sector into buffer | |
1563 | long CALLBACK ISOreadCDDA(unsigned char m, unsigned char s, unsigned char f, unsigned char *buffer) { | |
1564 | unsigned char msf[3] = {m, s, f}; | |
1565 | unsigned int file, track, track_start = 0; | |
1566 | int ret; | |
1567 | ||
1568 | cddaCurPos = msf2sec((char *)msf); | |
1569 | ||
1570 | // find current track index | |
1571 | for (track = numtracks; ; track--) { | |
1572 | track_start = msf2sec(ti[track].start); | |
1573 | if (track_start <= cddaCurPos) | |
1574 | break; | |
1575 | if (track == 1) | |
1576 | break; | |
1577 | } | |
1578 | ||
1579 | // data tracks play silent | |
1580 | if (ti[track].type != CDDA) { | |
1581 | memset(buffer, 0, CD_FRAMESIZE_RAW); | |
1582 | return 0; | |
1583 | } | |
1584 | ||
1585 | file = 1; | |
1586 | if (multifile) { | |
1587 | // find the file that contains this track | |
1588 | for (file = track; file > 1; file--) | |
1589 | if (ti[file].handle != NULL) | |
1590 | break; | |
ef79bbde P |
1591 | } |
1592 | ||
deebc67f | 1593 | ret = cdimg_read_func(ti[file].handle, ti[track].start_offset, |
1594 | buffer, cddaCurPos - track_start); | |
1595 | if (ret != CD_FRAMESIZE_RAW) { | |
1596 | memset(buffer, 0, CD_FRAMESIZE_RAW); | |
1597 | return -1; | |
1598 | } | |
1599 | ||
1600 | if (cddaBigEndian) { | |
1601 | int i; | |
1602 | unsigned char tmp; | |
1603 | ||
1604 | for (i = 0; i < CD_FRAMESIZE_RAW / 2; i++) { | |
1605 | tmp = buffer[i * 2]; | |
1606 | buffer[i * 2] = buffer[i * 2 + 1]; | |
1607 | buffer[i * 2 + 1] = tmp; | |
1608 | } | |
1609 | } | |
858ad511 | 1610 | |
ef79bbde P |
1611 | return 0; |
1612 | } | |
1613 | ||
1614 | void cdrIsoInit(void) { | |
1615 | CDR_init = ISOinit; | |
1616 | CDR_shutdown = ISOshutdown; | |
1617 | CDR_open = ISOopen; | |
1618 | CDR_close = ISOclose; | |
1619 | CDR_getTN = ISOgetTN; | |
1620 | CDR_getTD = ISOgetTD; | |
1621 | CDR_readTrack = ISOreadTrack; | |
1622 | CDR_getBuffer = ISOgetBuffer; | |
1623 | CDR_play = ISOplay; | |
1624 | CDR_stop = ISOstop; | |
1625 | CDR_getBufferSub = ISOgetBufferSub; | |
1626 | CDR_getStatus = ISOgetStatus; | |
deebc67f | 1627 | CDR_readCDDA = ISOreadCDDA; |
ef79bbde P |
1628 | |
1629 | CDR_getDriveLetter = CDR__getDriveLetter; | |
1630 | CDR_configure = CDR__configure; | |
1631 | CDR_test = CDR__test; | |
1632 | CDR_about = CDR__about; | |
1633 | CDR_setfilename = CDR__setfilename; | |
1634 | ||
1635 | numtracks = 0; | |
1636 | } | |
1637 | ||
1638 | int cdrIsoActive(void) { | |
1639 | return (cdHandle != NULL); | |
1640 | } |