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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 | { | |
983a7cfd | 167 | long osleep, d, t, i, s; |
ef79bbde | 168 | unsigned char tmp; |
983a7cfd | 169 | int ret = 0; |
ef79bbde P |
170 | |
171 | t = GetTickCount(); | |
172 | ||
173 | while (playing) { | |
9a92bffb | 174 | s = 0; |
175 | for (i = 0; i < sizeof(sndbuffer) / CD_FRAMESIZE_RAW; i++) { | |
176 | d = cdimg_read_func(cddaHandle, sndbuffer + s, cdda_cur_sector, 0); | |
177 | if (d < CD_FRAMESIZE_RAW) | |
178 | break; | |
ef79bbde | 179 | |
9a92bffb | 180 | s += d; |
181 | cdda_cur_sector++; | |
ef79bbde | 182 | } |
19c03d80 | 183 | |
9a92bffb | 184 | if (subHandle != NULL) { |
185 | fseek(subHandle, cdda_cur_sector * SUB_FRAMESIZE, SEEK_SET); | |
186 | fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); | |
19c03d80 | 187 | |
9a92bffb | 188 | if (subChanRaw) DecodeRawSubData(); |
ef79bbde P |
189 | } |
190 | ||
191 | if (s == 0) { | |
192 | playing = FALSE; | |
ef79bbde P |
193 | initial_offset = 0; |
194 | break; | |
195 | } | |
196 | ||
197 | if (!cdr.Muted && playing) { | |
198 | if (cddaBigEndian) { | |
199 | for (i = 0; i < s / 2; i++) { | |
200 | tmp = sndbuffer[i * 2]; | |
201 | sndbuffer[i * 2] = sndbuffer[i * 2 + 1]; | |
202 | sndbuffer[i * 2 + 1] = tmp; | |
203 | } | |
204 | } | |
205 | ||
983a7cfd | 206 | do { |
207 | ret = SPU_playCDDAchannel((short *)sndbuffer, s); | |
208 | if (ret == 0x7761) | |
209 | usleep(6 * 1000); | |
210 | } while (ret == 0x7761 && playing); // rearmed_wait | |
ef79bbde | 211 | } |
983a7cfd | 212 | |
213 | if (ret != 0x676f) { // !rearmed_go | |
214 | // do approx sleep | |
215 | long now; | |
216 | ||
217 | // HACK: stop feeding data while emu is paused | |
218 | extern int stop; | |
219 | while (stop && playing) | |
220 | usleep(10000); | |
221 | ||
222 | now = GetTickCount(); | |
223 | osleep = t - now; | |
224 | if (osleep <= 0) { | |
225 | osleep = 1; | |
226 | t = now; | |
227 | } | |
228 | else if (osleep > CDDA_FRAMETIME) { | |
229 | osleep = CDDA_FRAMETIME; | |
230 | t = now; | |
231 | } | |
232 | ||
233 | usleep(osleep * 1000); | |
234 | t += CDDA_FRAMETIME; | |
235 | } | |
236 | ||
ef79bbde P |
237 | } |
238 | ||
239 | #ifdef _WIN32 | |
240 | _endthread(); | |
241 | #else | |
242 | pthread_exit(0); | |
243 | return NULL; | |
244 | #endif | |
245 | } | |
246 | ||
247 | // stop the CDDA playback | |
248 | static void stopCDDA() { | |
249 | if (!playing) { | |
250 | return; | |
251 | } | |
252 | ||
253 | playing = FALSE; | |
254 | #ifdef _WIN32 | |
255 | WaitForSingleObject(threadid, INFINITE); | |
256 | #else | |
257 | pthread_join(threadid, NULL); | |
258 | #endif | |
ef79bbde P |
259 | } |
260 | ||
261 | // start the CDDA playback | |
9a92bffb | 262 | static void startCDDA(unsigned int sector) { |
ef79bbde | 263 | if (playing) { |
ef79bbde P |
264 | stopCDDA(); |
265 | } | |
266 | ||
9a92bffb | 267 | cdda_cur_sector = sector; |
ef79bbde P |
268 | playing = TRUE; |
269 | ||
270 | #ifdef _WIN32 | |
271 | threadid = (HANDLE)_beginthread(playthread, 0, NULL); | |
272 | #else | |
273 | pthread_create(&threadid, NULL, playthread, NULL); | |
274 | #endif | |
275 | } | |
276 | ||
277 | // this function tries to get the .toc file of the given .bin | |
278 | // the necessary data is put into the ti (trackinformation)-array | |
279 | static int parsetoc(const char *isofile) { | |
280 | char tocname[MAXPATHLEN]; | |
281 | FILE *fi; | |
282 | char linebuf[256], dummy[256], name[256]; | |
283 | char *token; | |
284 | char time[20], time2[20]; | |
19c03d80 | 285 | unsigned int t, sector_offs; |
ef79bbde P |
286 | |
287 | numtracks = 0; | |
288 | ||
289 | // copy name of the iso and change extension from .bin to .toc | |
290 | strncpy(tocname, isofile, sizeof(tocname)); | |
291 | tocname[MAXPATHLEN - 1] = '\0'; | |
292 | if (strlen(tocname) >= 4) { | |
293 | strcpy(tocname + strlen(tocname) - 4, ".toc"); | |
294 | } | |
295 | else { | |
296 | return -1; | |
297 | } | |
298 | ||
299 | if ((fi = fopen(tocname, "r")) == NULL) { | |
300 | // try changing extension to .cue (to satisfy some stupid tutorials) | |
301 | strcpy(tocname + strlen(tocname) - 4, ".cue"); | |
302 | if ((fi = fopen(tocname, "r")) == NULL) { | |
303 | // if filename is image.toc.bin, try removing .bin (for Brasero) | |
304 | strcpy(tocname, isofile); | |
305 | t = strlen(tocname); | |
306 | if (t >= 8 && strcmp(tocname + t - 8, ".toc.bin") == 0) { | |
307 | tocname[t - 4] = '\0'; | |
308 | if ((fi = fopen(tocname, "r")) == NULL) { | |
309 | return -1; | |
310 | } | |
311 | } | |
312 | else { | |
313 | return -1; | |
314 | } | |
315 | } | |
316 | } | |
317 | ||
318 | memset(&ti, 0, sizeof(ti)); | |
319 | cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio | |
320 | ||
19c03d80 | 321 | sector_offs = 2 * 75; |
322 | ||
ef79bbde P |
323 | // parse the .toc file |
324 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
325 | // search for tracks | |
326 | strncpy(dummy, linebuf, sizeof(linebuf)); | |
327 | token = strtok(dummy, " "); | |
328 | ||
329 | if (token == NULL) continue; | |
330 | ||
331 | if (!strcmp(token, "TRACK")) { | |
332 | // get type of track | |
333 | token = strtok(NULL, " "); | |
334 | numtracks++; | |
335 | ||
336 | if (!strncmp(token, "MODE2_RAW", 9)) { | |
337 | ti[numtracks].type = DATA; | |
338 | sec2msf(2 * 75, ti[numtracks].start); // assume data track on 0:2:0 | |
339 | ||
340 | // check if this image contains mixed subchannel data | |
341 | token = strtok(NULL, " "); | |
342 | if (token != NULL && !strncmp(token, "RW_RAW", 6)) { | |
343 | subChanMixed = TRUE; | |
344 | subChanRaw = TRUE; | |
345 | } | |
346 | } | |
347 | else if (!strncmp(token, "AUDIO", 5)) { | |
348 | ti[numtracks].type = CDDA; | |
349 | } | |
350 | } | |
351 | else if (!strcmp(token, "DATAFILE")) { | |
352 | if (ti[numtracks].type == CDDA) { | |
353 | sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2); | |
354 | t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0); | |
19c03d80 | 355 | ti[numtracks].start_offset = t; |
356 | t += sector_offs; | |
ef79bbde P |
357 | sec2msf(t, (char *)&ti[numtracks].start); |
358 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
359 | } | |
360 | else { | |
361 | sscanf(linebuf, "DATAFILE \"%[^\"]\" %8s", name, time); | |
362 | tok2msf((char *)&time, (char *)&ti[numtracks].length); | |
363 | } | |
364 | } | |
365 | else if (!strcmp(token, "FILE")) { | |
366 | sscanf(linebuf, "FILE \"%[^\"]\" #%d %8s %8s", name, &t, time, time2); | |
367 | tok2msf((char *)&time, (char *)&ti[numtracks].start); | |
368 | t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0); | |
19c03d80 | 369 | ti[numtracks].start_offset = t; |
370 | t += msf2sec(ti[numtracks].start) + sector_offs; | |
ef79bbde P |
371 | sec2msf(t, (char *)&ti[numtracks].start); |
372 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
373 | } | |
19c03d80 | 374 | else if (!strcmp(token, "ZERO")) { |
375 | sscanf(linebuf, "ZERO AUDIO RW_RAW %8s", time); | |
376 | tok2msf((char *)&time, dummy); | |
377 | sector_offs += msf2sec(dummy); | |
8aa91443 | 378 | if (numtracks > 1) { |
379 | t = ti[numtracks - 1].start_offset; | |
380 | pregapOffset = t + msf2sec(ti[numtracks - 1].length); | |
381 | } | |
19c03d80 | 382 | } |
ef79bbde P |
383 | } |
384 | ||
385 | fclose(fi); | |
386 | ||
387 | return 0; | |
388 | } | |
389 | ||
390 | // this function tries to get the .cue file of the given .bin | |
391 | // the necessary data is put into the ti (trackinformation)-array | |
392 | static int parsecue(const char *isofile) { | |
393 | char cuename[MAXPATHLEN]; | |
38b8102c | 394 | char filepath[MAXPATHLEN]; |
395 | char *incue_fname; | |
ef79bbde P |
396 | FILE *fi; |
397 | char *token; | |
398 | char time[20]; | |
399 | char *tmp; | |
19c03d80 | 400 | char linebuf[256], tmpb[256], dummy[256]; |
38b8102c | 401 | unsigned int incue_max_len; |
19c03d80 | 402 | unsigned int t, file_len, sector_offs; |
ef79bbde P |
403 | |
404 | numtracks = 0; | |
405 | ||
406 | // copy name of the iso and change extension from .bin to .cue | |
407 | strncpy(cuename, isofile, sizeof(cuename)); | |
408 | cuename[MAXPATHLEN - 1] = '\0'; | |
409 | if (strlen(cuename) >= 4) { | |
410 | strcpy(cuename + strlen(cuename) - 4, ".cue"); | |
411 | } | |
412 | else { | |
413 | return -1; | |
414 | } | |
415 | ||
416 | if ((fi = fopen(cuename, "r")) == NULL) { | |
417 | return -1; | |
418 | } | |
419 | ||
420 | // Some stupid tutorials wrongly tell users to use cdrdao to rip a | |
421 | // "bin/cue" image, which is in fact a "bin/toc" image. So let's check | |
422 | // that... | |
423 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
424 | if (!strncmp(linebuf, "CD_ROM_XA", 9)) { | |
425 | // Don't proceed further, as this is actually a .toc file rather | |
426 | // than a .cue file. | |
427 | fclose(fi); | |
428 | return parsetoc(isofile); | |
429 | } | |
430 | fseek(fi, 0, SEEK_SET); | |
431 | } | |
432 | ||
38b8102c | 433 | // build a path for files referenced in .cue |
434 | strncpy(filepath, cuename, sizeof(filepath)); | |
435 | tmp = strrchr(filepath, '/') + 1; | |
436 | if (tmp == NULL) | |
437 | tmp = strrchr(filepath, '\\') + 1; | |
438 | if (tmp == NULL) | |
439 | tmp = filepath; | |
440 | *tmp = 0; | |
441 | filepath[sizeof(filepath) - 1] = 0; | |
442 | incue_fname = tmp; | |
443 | incue_max_len = sizeof(filepath) - (tmp - filepath) - 1; | |
444 | ||
ef79bbde P |
445 | memset(&ti, 0, sizeof(ti)); |
446 | ||
19c03d80 | 447 | file_len = 0; |
448 | sector_offs = 2 * 75; | |
449 | ||
ef79bbde P |
450 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
451 | strncpy(dummy, linebuf, sizeof(linebuf)); | |
452 | token = strtok(dummy, " "); | |
453 | ||
454 | if (token == NULL) { | |
455 | continue; | |
456 | } | |
457 | ||
19c03d80 | 458 | if (!strcmp(token, "TRACK")) { |
ef79bbde P |
459 | numtracks++; |
460 | ||
461 | if (strstr(linebuf, "AUDIO") != NULL) { | |
462 | ti[numtracks].type = CDDA; | |
463 | } | |
464 | else if (strstr(linebuf, "MODE1/2352") != NULL || strstr(linebuf, "MODE2/2352") != NULL) { | |
465 | ti[numtracks].type = DATA; | |
466 | } | |
467 | } | |
468 | else if (!strcmp(token, "INDEX")) { | |
19c03d80 | 469 | sscanf(linebuf, " INDEX %02d %8s", &t, time); |
470 | tok2msf(time, (char *)&ti[numtracks].start); | |
ef79bbde | 471 | |
19c03d80 | 472 | t = msf2sec(ti[numtracks].start); |
473 | ti[numtracks].start_offset = t; | |
474 | t += sector_offs; | |
ef79bbde | 475 | sec2msf(t, ti[numtracks].start); |
19c03d80 | 476 | |
477 | // default track length to file length | |
478 | t = file_len - ti[numtracks].start_offset; | |
479 | sec2msf(t, ti[numtracks].length); | |
480 | ||
481 | if (numtracks > 1 && ti[numtracks].handle == NULL) { | |
482 | // this track uses the same file as the last, | |
483 | // start of this track is last track's end | |
484 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
485 | sec2msf(t, ti[numtracks - 1].length); | |
38b8102c | 486 | } |
8aa91443 | 487 | if (numtracks > 1 && pregapOffset == -1) |
488 | pregapOffset = ti[numtracks].start_offset; | |
19c03d80 | 489 | } |
490 | else if (!strcmp(token, "PREGAP")) { | |
491 | if (sscanf(linebuf, " PREGAP %8s", time) == 1) { | |
492 | tok2msf(time, dummy); | |
493 | sector_offs += msf2sec(dummy); | |
38b8102c | 494 | } |
8aa91443 | 495 | pregapOffset = -1; // mark to fill track start_offset |
19c03d80 | 496 | } |
497 | else if (!strcmp(token, "FILE")) { | |
498 | sscanf(linebuf, " FILE \"%[^\"]\"", tmpb); | |
499 | ||
500 | // absolute path? | |
501 | ti[numtracks + 1].handle = fopen(tmpb, "rb"); | |
502 | if (ti[numtracks + 1].handle == NULL) { | |
503 | // relative to .cue? | |
504 | tmp = strrchr(tmpb, '\\'); | |
505 | if (tmp == NULL) | |
506 | tmp = strrchr(tmpb, '/'); | |
38b8102c | 507 | if (tmp != NULL) |
19c03d80 | 508 | tmp++; |
509 | else | |
510 | tmp = tmpb; | |
511 | strncpy(incue_fname, tmp, incue_max_len); | |
512 | ti[numtracks + 1].handle = fopen(filepath, "rb"); | |
38b8102c | 513 | } |
ef79bbde | 514 | |
19c03d80 | 515 | // update global offset if this is not first file in this .cue |
516 | if (numtracks + 1 > 1) | |
517 | sector_offs += file_len; | |
518 | ||
519 | file_len = 0; | |
38b8102c | 520 | if (ti[numtracks + 1].handle == NULL) { |
19c03d80 | 521 | SysPrintf(_("\ncould not open: %s\n"), filepath); |
522 | continue; | |
38b8102c | 523 | } |
19c03d80 | 524 | fseek(ti[numtracks + 1].handle, 0, SEEK_END); |
525 | file_len = ftell(ti[numtracks + 1].handle) / 2352; | |
526 | ||
527 | if (numtracks == 0 && strlen(isofile) >= 4 && | |
528 | strcmp(isofile + strlen(isofile) - 4, ".cue") == 0) | |
529 | { | |
38b8102c | 530 | // user selected .cue as image file, use it's data track instead |
531 | fclose(cdHandle); | |
532 | cdHandle = fopen(filepath, "rb"); | |
ef79bbde P |
533 | } |
534 | } | |
535 | } | |
536 | ||
537 | fclose(fi); | |
538 | ||
ef79bbde P |
539 | return 0; |
540 | } | |
541 | ||
542 | // this function tries to get the .ccd file of the given .img | |
543 | // the necessary data is put into the ti (trackinformation)-array | |
544 | static int parseccd(const char *isofile) { | |
545 | char ccdname[MAXPATHLEN]; | |
546 | FILE *fi; | |
547 | char linebuf[256]; | |
548 | unsigned int t; | |
549 | ||
550 | numtracks = 0; | |
551 | ||
552 | // copy name of the iso and change extension from .img to .ccd | |
553 | strncpy(ccdname, isofile, sizeof(ccdname)); | |
554 | ccdname[MAXPATHLEN - 1] = '\0'; | |
555 | if (strlen(ccdname) >= 4) { | |
556 | strcpy(ccdname + strlen(ccdname) - 4, ".ccd"); | |
557 | } | |
558 | else { | |
559 | return -1; | |
560 | } | |
561 | ||
562 | if ((fi = fopen(ccdname, "r")) == NULL) { | |
563 | return -1; | |
564 | } | |
565 | ||
566 | memset(&ti, 0, sizeof(ti)); | |
567 | ||
568 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
569 | if (!strncmp(linebuf, "[TRACK", 6)){ | |
570 | numtracks++; | |
571 | } | |
572 | else if (!strncmp(linebuf, "MODE=", 5)) { | |
573 | sscanf(linebuf, "MODE=%d", &t); | |
574 | ti[numtracks].type = ((t == 0) ? CDDA : DATA); | |
575 | } | |
576 | else if (!strncmp(linebuf, "INDEX 1=", 8)) { | |
577 | sscanf(linebuf, "INDEX 1=%d", &t); | |
578 | sec2msf(t + 2 * 75, ti[numtracks].start); | |
19c03d80 | 579 | ti[numtracks].start_offset = t; |
ef79bbde P |
580 | |
581 | // If we've already seen another track, this is its end | |
582 | if (numtracks > 1) { | |
583 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
584 | sec2msf(t, ti[numtracks - 1].length); | |
585 | } | |
586 | } | |
587 | } | |
588 | ||
589 | fclose(fi); | |
590 | ||
591 | // Fill out the last track's end based on size | |
592 | if (numtracks >= 1) { | |
593 | fseek(cdHandle, 0, SEEK_END); | |
594 | t = ftell(cdHandle) / 2352 - msf2sec(ti[numtracks].start) + 2 * 75; | |
595 | sec2msf(t, ti[numtracks].length); | |
596 | } | |
597 | ||
598 | return 0; | |
599 | } | |
600 | ||
601 | // this function tries to get the .mds file of the given .mdf | |
602 | // the necessary data is put into the ti (trackinformation)-array | |
603 | static int parsemds(const char *isofile) { | |
604 | char mdsname[MAXPATHLEN]; | |
605 | FILE *fi; | |
606 | unsigned int offset, extra_offset, l, i; | |
607 | unsigned short s; | |
608 | ||
609 | numtracks = 0; | |
610 | ||
611 | // copy name of the iso and change extension from .mdf to .mds | |
612 | strncpy(mdsname, isofile, sizeof(mdsname)); | |
613 | mdsname[MAXPATHLEN - 1] = '\0'; | |
614 | if (strlen(mdsname) >= 4) { | |
615 | strcpy(mdsname + strlen(mdsname) - 4, ".mds"); | |
616 | } | |
617 | else { | |
618 | return -1; | |
619 | } | |
620 | ||
621 | if ((fi = fopen(mdsname, "rb")) == NULL) { | |
622 | return -1; | |
623 | } | |
624 | ||
625 | memset(&ti, 0, sizeof(ti)); | |
626 | ||
627 | // check if it's a valid mds file | |
628 | fread(&i, 1, sizeof(unsigned int), fi); | |
629 | i = SWAP32(i); | |
630 | if (i != 0x4944454D) { | |
631 | // not an valid mds file | |
632 | fclose(fi); | |
633 | return -1; | |
634 | } | |
635 | ||
636 | // get offset to session block | |
637 | fseek(fi, 0x50, SEEK_SET); | |
638 | fread(&offset, 1, sizeof(unsigned int), fi); | |
639 | offset = SWAP32(offset); | |
640 | ||
641 | // get total number of tracks | |
642 | offset += 14; | |
643 | fseek(fi, offset, SEEK_SET); | |
644 | fread(&s, 1, sizeof(unsigned short), fi); | |
645 | s = SWAP16(s); | |
646 | numtracks = s; | |
647 | ||
648 | // get offset to track blocks | |
649 | fseek(fi, 4, SEEK_CUR); | |
650 | fread(&offset, 1, sizeof(unsigned int), fi); | |
651 | offset = SWAP32(offset); | |
652 | ||
653 | // skip lead-in data | |
654 | while (1) { | |
655 | fseek(fi, offset + 4, SEEK_SET); | |
656 | if (fgetc(fi) < 0xA0) { | |
657 | break; | |
658 | } | |
659 | offset += 0x50; | |
660 | } | |
661 | ||
662 | // check if the image contains mixed subchannel data | |
663 | fseek(fi, offset + 1, SEEK_SET); | |
664 | subChanMixed = (fgetc(fi) ? TRUE : FALSE); | |
665 | ||
666 | // read track data | |
667 | for (i = 1; i <= numtracks; i++) { | |
668 | fseek(fi, offset, SEEK_SET); | |
669 | ||
670 | // get the track type | |
671 | ti[i].type = ((fgetc(fi) == 0xA9) ? CDDA : DATA); | |
672 | fseek(fi, 8, SEEK_CUR); | |
673 | ||
674 | // get the track starting point | |
675 | ti[i].start[0] = fgetc(fi); | |
676 | ti[i].start[1] = fgetc(fi); | |
677 | ti[i].start[2] = fgetc(fi); | |
678 | ||
ef79bbde P |
679 | fread(&extra_offset, 1, sizeof(unsigned int), fi); |
680 | extra_offset = SWAP32(extra_offset); | |
681 | ||
19c03d80 | 682 | // get track start offset (in .mdf) |
683 | fseek(fi, offset + 0x28, SEEK_SET); | |
684 | fread(&l, 1, sizeof(unsigned int), fi); | |
685 | l = SWAP32(l); | |
686 | ti[i].start_offset = l / CD_FRAMESIZE_RAW; | |
687 | ||
8aa91443 | 688 | // get pregap |
689 | fseek(fi, extra_offset, SEEK_SET); | |
690 | fread(&l, 1, sizeof(unsigned int), fi); | |
691 | l = SWAP32(l); | |
692 | if (l != 0 && i > 1) | |
693 | pregapOffset = ti[i].start_offset; | |
694 | ||
695 | // get the track length | |
696 | fread(&l, 1, sizeof(unsigned int), fi); | |
697 | l = SWAP32(l); | |
698 | sec2msf(l, ti[i].length); | |
699 | ||
ef79bbde P |
700 | offset += 0x50; |
701 | } | |
702 | ||
703 | fclose(fi); | |
704 | return 0; | |
705 | } | |
706 | ||
9a92bffb | 707 | static int parsepbp(const char *isofile) { |
708 | struct { | |
709 | unsigned int sig; | |
710 | unsigned int dontcare[8]; | |
711 | unsigned int psar_offs; | |
712 | } pbp_hdr; | |
713 | struct { | |
714 | unsigned char type; | |
715 | unsigned char pad0; | |
716 | unsigned char track; | |
717 | char index0[3]; | |
718 | char pad1; | |
719 | char index1[3]; | |
720 | } toc_entry; | |
721 | struct { | |
722 | unsigned int offset; | |
723 | unsigned int size; | |
724 | unsigned int dontcare[6]; | |
725 | } index_entry; | |
726 | char psar_sig[9]; | |
727 | unsigned int t, cd_length, cdimg_base; | |
728 | const char *ext = NULL; | |
729 | int i, ret; | |
730 | ||
731 | if (strlen(isofile) >= 4) | |
732 | ext = isofile + strlen(isofile) - 4; | |
733 | if (ext == NULL || (strcmp(ext, ".pbp") != 0 && strcmp(ext, ".PBP") != 0)) | |
734 | return -1; | |
735 | ||
736 | numtracks = 0; | |
737 | ||
738 | ret = fread(&pbp_hdr, 1, sizeof(pbp_hdr), cdHandle); | |
739 | if (ret != sizeof(pbp_hdr)) { | |
740 | fprintf(stderr, "failed to read pbp\n"); | |
741 | goto fail_io; | |
742 | } | |
743 | ||
744 | ret = fseek(cdHandle, pbp_hdr.psar_offs, SEEK_SET); | |
745 | if (ret != 0) { | |
746 | fprintf(stderr, "failed to seek to %x\n", pbp_hdr.psar_offs); | |
747 | goto fail_io; | |
748 | } | |
749 | ||
750 | fread(psar_sig, 1, sizeof(psar_sig), cdHandle); | |
751 | psar_sig[8] = 0; | |
752 | if (strcmp(psar_sig, "PSISOIMG") != 0) { | |
753 | fprintf(stderr, "bad psar_sig: %s\n", psar_sig); | |
754 | goto fail_io; | |
755 | } | |
756 | ||
757 | // seek to TOC | |
758 | ret = fseek(cdHandle, pbp_hdr.psar_offs + 0x800, SEEK_SET); | |
759 | if (ret != 0) { | |
760 | fprintf(stderr, "failed to seek to %x\n", pbp_hdr.psar_offs); | |
761 | goto fail_io; | |
762 | } | |
763 | ||
764 | // first 3 entries are special | |
765 | fseek(cdHandle, sizeof(toc_entry), SEEK_CUR); | |
766 | fread(&toc_entry, 1, sizeof(toc_entry), cdHandle); | |
767 | numtracks = btoi(toc_entry.index1[0]); | |
768 | ||
769 | fread(&toc_entry, 1, sizeof(toc_entry), cdHandle); | |
770 | cd_length = btoi(toc_entry.index1[0]) * 60 * 75 + | |
771 | btoi(toc_entry.index1[1]) * 75 + btoi(toc_entry.index1[2]); | |
772 | ||
773 | for (i = 1; i <= numtracks; i++) { | |
774 | fread(&toc_entry, 1, sizeof(toc_entry), cdHandle); | |
775 | ||
776 | ti[i].type = (toc_entry.type == 1) ? CDDA : DATA; | |
777 | ||
778 | ti[i].start_offset = btoi(toc_entry.index0[0]) * 60 * 75 + | |
779 | btoi(toc_entry.index0[1]) * 75 + btoi(toc_entry.index0[2]); | |
780 | ti[i].start[0] = btoi(toc_entry.index1[0]); | |
781 | ti[i].start[1] = btoi(toc_entry.index1[1]); | |
782 | ti[i].start[2] = btoi(toc_entry.index1[2]); | |
783 | ||
784 | if (i > 1) { | |
785 | t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start); | |
786 | sec2msf(t, ti[i - 1].length); | |
787 | } | |
788 | } | |
789 | t = cd_length - ti[numtracks].start_offset; | |
790 | sec2msf(t, ti[numtracks].length); | |
791 | ||
792 | // seek to ISO index | |
793 | ret = fseek(cdHandle, pbp_hdr.psar_offs + 0x4000, SEEK_SET); | |
794 | if (ret != 0) { | |
795 | fprintf(stderr, "failed to seek to ISO index\n"); | |
796 | goto fail_io; | |
797 | } | |
798 | ||
799 | compr_img = calloc(1, sizeof(*compr_img)); | |
800 | if (compr_img == NULL) | |
801 | goto fail_io; | |
802 | ||
803 | compr_img->current_block = (unsigned int)-1; | |
804 | ||
805 | compr_img->index_len = (0x100000 - 0x4000) / sizeof(index_entry); | |
806 | compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); | |
807 | if (compr_img->index_table == NULL) | |
808 | goto fail_io; | |
809 | ||
810 | cdimg_base = pbp_hdr.psar_offs + 0x100000; | |
811 | for (i = 0; i < compr_img->index_len; i++) { | |
812 | ret = fread(&index_entry, 1, sizeof(index_entry), cdHandle); | |
813 | if (ret != sizeof(index_entry)) { | |
814 | fprintf(stderr, "failed to read index_entry #%d\n", i); | |
815 | goto fail_index; | |
816 | } | |
817 | ||
818 | if (index_entry.size == 0) | |
819 | break; | |
820 | ||
821 | compr_img->index_table[i] = cdimg_base + index_entry.offset; | |
822 | } | |
823 | compr_img->index_table[i] = cdimg_base + index_entry.offset + index_entry.size; | |
824 | ||
825 | return 0; | |
826 | ||
827 | fail_index: | |
828 | free(compr_img->index_table); | |
829 | compr_img->index_table = NULL; | |
830 | fail_io: | |
831 | return -1; | |
832 | } | |
833 | ||
ef79bbde P |
834 | // this function tries to get the .sub file of the given .img |
835 | static int opensubfile(const char *isoname) { | |
836 | char subname[MAXPATHLEN]; | |
837 | ||
838 | // copy name of the iso and change extension from .img to .sub | |
839 | strncpy(subname, isoname, sizeof(subname)); | |
840 | subname[MAXPATHLEN - 1] = '\0'; | |
841 | if (strlen(subname) >= 4) { | |
842 | strcpy(subname + strlen(subname) - 4, ".sub"); | |
843 | } | |
844 | else { | |
845 | return -1; | |
846 | } | |
847 | ||
848 | subHandle = fopen(subname, "rb"); | |
849 | if (subHandle == NULL) { | |
850 | return -1; | |
851 | } | |
852 | ||
853 | return 0; | |
854 | } | |
855 | ||
ae4e7dc9 | 856 | static int opensbifile(const char *isoname) { |
857 | char sbiname[MAXPATHLEN]; | |
858 | int s; | |
859 | ||
860 | strncpy(sbiname, isoname, sizeof(sbiname)); | |
861 | sbiname[MAXPATHLEN - 1] = '\0'; | |
862 | if (strlen(sbiname) >= 4) { | |
863 | strcpy(sbiname + strlen(sbiname) - 4, ".sbi"); | |
864 | } | |
865 | else { | |
866 | return -1; | |
867 | } | |
868 | ||
869 | fseek(cdHandle, 0, SEEK_END); | |
870 | s = ftell(cdHandle) / 2352; | |
871 | ||
872 | return LoadSBI(sbiname, s); | |
873 | } | |
874 | ||
9a92bffb | 875 | static int cdread_normal(FILE *f, void *dest, int sector, int offset) |
876 | { | |
877 | fseek(f, sector * CD_FRAMESIZE_RAW + offset, SEEK_SET); | |
878 | return fread(dest, 1, CD_FRAMESIZE_RAW - offset, f); | |
879 | } | |
880 | ||
881 | static int cdread_sub_mixed(FILE *f, void *dest, int sector, int offset) | |
882 | { | |
883 | int ret; | |
884 | ||
885 | fseek(f, sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + offset, SEEK_SET); | |
886 | ret = fread(dest, 1, CD_FRAMESIZE_RAW - offset, f); | |
887 | fread(subbuffer, 1, SUB_FRAMESIZE, f); | |
888 | ||
889 | if (subChanRaw) DecodeRawSubData(); | |
890 | ||
891 | return ret; | |
892 | } | |
893 | ||
894 | static int uncompress2(void *out, unsigned long *out_size, void *in, unsigned long in_size) | |
895 | { | |
896 | static z_stream z; | |
897 | int ret = 0; | |
898 | ||
899 | if (z.zalloc == NULL) { | |
900 | // XXX: one-time leak here.. | |
901 | z.next_in = Z_NULL; | |
902 | z.avail_in = 0; | |
903 | z.zalloc = Z_NULL; | |
904 | z.zfree = Z_NULL; | |
905 | z.opaque = Z_NULL; | |
906 | ret = inflateInit2(&z, -15); | |
907 | } | |
908 | else | |
909 | ret = inflateReset(&z); | |
910 | if (ret != Z_OK) | |
911 | return ret; | |
912 | ||
913 | z.next_in = in; | |
914 | z.avail_in = in_size; | |
915 | z.next_out = out; | |
916 | z.avail_out = *out_size; | |
917 | ||
918 | ret = inflate(&z, Z_NO_FLUSH); | |
919 | //inflateEnd(&z); | |
920 | ||
921 | *out_size -= z.avail_out; | |
922 | return ret == 1 ? 0 : ret; | |
923 | } | |
924 | ||
925 | static int cdread_compressed(FILE *f, void *dest, int sector, int offset) | |
926 | { | |
927 | unsigned int start_byte, size; | |
928 | unsigned long cdbuffer_size; | |
929 | int ret, block; | |
930 | ||
931 | block = sector >> 4; | |
932 | compr_img->sector_in_blk = sector & 15; | |
933 | ||
934 | if (block == compr_img->current_block) { | |
935 | //printf("hit sect %d\n", sector); | |
936 | goto finish; | |
937 | } | |
938 | ||
939 | if (sector >= compr_img->index_len * 16) { | |
940 | fprintf(stderr, "sector %d is past img end\n", sector); | |
941 | return -1; | |
942 | } | |
943 | ||
944 | start_byte = compr_img->index_table[block]; | |
945 | if (fseek(cdHandle, start_byte, SEEK_SET) != 0) { | |
946 | fprintf(stderr, "seek error for block %d at %x: ", | |
947 | block, start_byte); | |
948 | perror(NULL); | |
949 | return -1; | |
950 | } | |
951 | ||
952 | size = compr_img->index_table[block + 1] - start_byte; | |
953 | if (size > sizeof(compr_img->buff_compressed)) { | |
954 | fprintf(stderr, "block %d is too large: %u\n", block, size); | |
955 | return -1; | |
956 | } | |
957 | ||
958 | if (fread(compr_img->buff_compressed, 1, size, cdHandle) != size) { | |
959 | fprintf(stderr, "read error for block %d at %x: ", block, start_byte); | |
960 | perror(NULL); | |
961 | return -1; | |
962 | } | |
963 | ||
964 | cdbuffer_size = sizeof(compr_img->buff_raw[0]) * 16; | |
965 | ret = uncompress2(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size); | |
966 | if (ret != 0) { | |
967 | fprintf(stderr, "uncompress failed with %d for block %d, sector %d\n", | |
968 | ret, block, sector); | |
969 | return -1; | |
970 | } | |
971 | if (cdbuffer_size != sizeof(compr_img->buff_raw[0]) * 16) | |
972 | fprintf(stderr, "cdbuffer_size: %lu != %d, sector %d\n", cdbuffer_size, | |
973 | sizeof(compr_img->buff_raw[0]) * 16, sector); | |
974 | ||
975 | // done at last! | |
976 | compr_img->current_block = block; | |
977 | ||
978 | finish: | |
979 | if (dest != cdbuffer) // copy avoid HACK | |
980 | memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk] + offset, | |
981 | CD_FRAMESIZE_RAW - offset); | |
982 | return CD_FRAMESIZE_RAW - offset; | |
983 | } | |
984 | ||
985 | static int cdread_2048(FILE *f, void *dest, int sector, int offset) | |
986 | { | |
987 | int ret; | |
988 | ||
989 | fseek(f, sector * 2048, SEEK_SET); | |
990 | ret = fread((char *)dest + 12, 1, 2048, f); | |
991 | ||
992 | // not really necessary, fake mode 2 header | |
993 | memset(cdbuffer, 0, 12); | |
994 | sec2msf(sector + 2 * 75, (char *)cdbuffer); | |
995 | cdbuffer[3] = 1; | |
996 | ||
997 | return ret; | |
998 | } | |
999 | ||
1000 | static unsigned char * CALLBACK ISOgetBuffer_compr(void) { | |
1001 | return compr_img->buff_raw[compr_img->sector_in_blk] + 12; | |
1002 | } | |
1003 | ||
1004 | static unsigned char * CALLBACK ISOgetBuffer(void) { | |
1005 | return cdbuffer; | |
1006 | } | |
1007 | ||
ef79bbde P |
1008 | static void PrintTracks(void) { |
1009 | int i; | |
1010 | ||
1011 | for (i = 1; i <= numtracks; i++) { | |
1012 | SysPrintf(_("Track %.2d (%s) - Start %.2d:%.2d:%.2d, Length %.2d:%.2d:%.2d\n"), | |
1013 | i, (ti[i].type == DATA ? "DATA" : "AUDIO"), | |
1014 | ti[i].start[0], ti[i].start[1], ti[i].start[2], | |
1015 | ti[i].length[0], ti[i].length[1], ti[i].length[2]); | |
1016 | } | |
1017 | } | |
1018 | ||
1019 | // This function is invoked by the front-end when opening an ISO | |
1020 | // file for playback | |
1021 | static long CALLBACK ISOopen(void) { | |
9a92bffb | 1022 | boolean isMode1ISO = FALSE; |
1023 | ||
ef79bbde P |
1024 | if (cdHandle != NULL) { |
1025 | return 0; // it's already open | |
1026 | } | |
1027 | ||
1028 | cdHandle = fopen(GetIsoFile(), "rb"); | |
1029 | if (cdHandle == NULL) { | |
1030 | return -1; | |
1031 | } | |
1032 | ||
1033 | SysPrintf(_("Loaded CD Image: %s"), GetIsoFile()); | |
1034 | ||
1035 | cddaBigEndian = FALSE; | |
1036 | subChanMixed = FALSE; | |
1037 | subChanRaw = FALSE; | |
8aa91443 | 1038 | pregapOffset = 0; |
ef79bbde | 1039 | |
9a92bffb | 1040 | CDR_getBuffer = ISOgetBuffer; |
1041 | cdimg_read_func = cdread_normal; | |
1042 | ||
ef79bbde P |
1043 | if (parsecue(GetIsoFile()) == 0) { |
1044 | SysPrintf("[+cue]"); | |
1045 | } | |
1046 | else if (parsetoc(GetIsoFile()) == 0) { | |
1047 | SysPrintf("[+toc]"); | |
1048 | } | |
1049 | else if (parseccd(GetIsoFile()) == 0) { | |
1050 | SysPrintf("[+ccd]"); | |
1051 | } | |
1052 | else if (parsemds(GetIsoFile()) == 0) { | |
1053 | SysPrintf("[+mds]"); | |
1054 | } | |
9a92bffb | 1055 | else if (parsepbp(GetIsoFile()) == 0) { |
1056 | SysPrintf("[pbp]"); | |
1057 | CDR_getBuffer = ISOgetBuffer_compr; | |
1058 | cdimg_read_func = cdread_compressed; | |
1059 | } | |
ef79bbde P |
1060 | |
1061 | if (!subChanMixed && opensubfile(GetIsoFile()) == 0) { | |
1062 | SysPrintf("[+sub]"); | |
1063 | } | |
ae4e7dc9 | 1064 | if (opensbifile(GetIsoFile()) == 0) { |
1065 | SysPrintf("[+sbi]"); | |
1066 | } | |
ef79bbde | 1067 | |
9a92bffb | 1068 | // guess whether it is mode1/2048 |
1069 | fseek(cdHandle, 0, SEEK_END); | |
1070 | if (ftell(cdHandle) % 2048 == 0) { | |
1071 | unsigned int modeTest = 0; | |
1072 | fseek(cdHandle, 0, SEEK_SET); | |
1073 | fread(&modeTest, 4, 1, cdHandle); | |
1074 | if (SWAP32(modeTest) != 0xffffff00) { | |
1075 | SysPrintf("[2048]"); | |
1076 | isMode1ISO = TRUE; | |
1077 | } | |
1078 | } | |
1079 | fseek(cdHandle, 0, SEEK_SET); | |
1080 | ||
ef79bbde P |
1081 | SysPrintf(".\n"); |
1082 | ||
1083 | PrintTracks(); | |
1084 | ||
9a92bffb | 1085 | if (subChanMixed) |
1086 | cdimg_read_func = cdread_sub_mixed; | |
1087 | else if (isMode1ISO) | |
1088 | cdimg_read_func = cdread_2048; | |
1089 | ||
38b8102c | 1090 | // make sure we have another handle open for cdda |
1091 | if (numtracks > 1 && ti[1].handle == NULL) { | |
1092 | ti[1].handle = fopen(GetIsoFile(), "rb"); | |
1093 | } | |
9a92bffb | 1094 | cdda_cur_sector = cdda_start_sector = 0; |
38b8102c | 1095 | |
ef79bbde P |
1096 | return 0; |
1097 | } | |
1098 | ||
1099 | static long CALLBACK ISOclose(void) { | |
38b8102c | 1100 | int i; |
1101 | ||
ef79bbde P |
1102 | if (cdHandle != NULL) { |
1103 | fclose(cdHandle); | |
1104 | cdHandle = NULL; | |
1105 | } | |
1106 | if (subHandle != NULL) { | |
1107 | fclose(subHandle); | |
1108 | subHandle = NULL; | |
1109 | } | |
1110 | stopCDDA(); | |
38b8102c | 1111 | cddaHandle = NULL; |
1112 | ||
9a92bffb | 1113 | if (compr_img != NULL) { |
1114 | free(compr_img->index_table); | |
1115 | free(compr_img); | |
1116 | compr_img = NULL; | |
1117 | } | |
1118 | ||
38b8102c | 1119 | for (i = 1; i <= numtracks; i++) { |
1120 | if (ti[i].handle != NULL) { | |
1121 | fclose(ti[i].handle); | |
1122 | ti[i].handle = NULL; | |
1123 | } | |
1124 | } | |
1125 | numtracks = 0; | |
ae4e7dc9 | 1126 | UnloadSBI(); |
38b8102c | 1127 | |
1128 | return 0; | |
1129 | } | |
1130 | ||
1131 | static long CALLBACK ISOinit(void) { | |
1132 | assert(cdHandle == NULL); | |
1133 | assert(subHandle == NULL); | |
1134 | ||
1135 | return 0; // do nothing | |
1136 | } | |
1137 | ||
1138 | static long CALLBACK ISOshutdown(void) { | |
1139 | ISOclose(); | |
ef79bbde P |
1140 | return 0; |
1141 | } | |
1142 | ||
1143 | // return Starting and Ending Track | |
1144 | // buffer: | |
1145 | // byte 0 - start track | |
1146 | // byte 1 - end track | |
1147 | static long CALLBACK ISOgetTN(unsigned char *buffer) { | |
1148 | buffer[0] = 1; | |
1149 | ||
1150 | if (numtracks > 0) { | |
1151 | buffer[1] = numtracks; | |
1152 | } | |
1153 | else { | |
1154 | buffer[1] = 1; | |
1155 | } | |
1156 | ||
1157 | return 0; | |
1158 | } | |
1159 | ||
1160 | // return Track Time | |
1161 | // buffer: | |
1162 | // byte 0 - frame | |
1163 | // byte 1 - second | |
1164 | // byte 2 - minute | |
1165 | static long CALLBACK ISOgetTD(unsigned char track, unsigned char *buffer) { | |
858ad511 | 1166 | if (track == 0) { |
1167 | // CD length according pcsxr-svn (done a bit different here) | |
1168 | unsigned int sect; | |
1169 | unsigned char time[3]; | |
1170 | sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length); | |
ab948f7e | 1171 | sec2msf(sect, (char *)time); |
858ad511 | 1172 | buffer[2] = time[0]; |
1173 | buffer[1] = time[1]; | |
1174 | buffer[0] = time[2]; | |
1175 | } | |
1176 | else if (numtracks > 0 && track <= numtracks) { | |
ef79bbde P |
1177 | buffer[2] = ti[track].start[0]; |
1178 | buffer[1] = ti[track].start[1]; | |
1179 | buffer[0] = ti[track].start[2]; | |
1180 | } | |
1181 | else { | |
1182 | buffer[2] = 0; | |
1183 | buffer[1] = 2; | |
1184 | buffer[0] = 0; | |
1185 | } | |
1186 | ||
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | // decode 'raw' subchannel data ripped by cdrdao | |
1191 | static void DecodeRawSubData(void) { | |
1192 | unsigned char subQData[12]; | |
1193 | int i; | |
1194 | ||
1195 | memset(subQData, 0, sizeof(subQData)); | |
1196 | ||
1197 | for (i = 0; i < 8 * 12; i++) { | |
1198 | if (subbuffer[i] & (1 << 6)) { // only subchannel Q is needed | |
1199 | subQData[i >> 3] |= (1 << (7 - (i & 7))); | |
1200 | } | |
1201 | } | |
1202 | ||
1203 | memcpy(&subbuffer[12], subQData, 12); | |
1204 | } | |
1205 | ||
1206 | // read track | |
1207 | // time: byte 0 - minute; byte 1 - second; byte 2 - frame | |
1208 | // uses bcd format | |
1209 | static long CALLBACK ISOreadTrack(unsigned char *time) { | |
19c03d80 | 1210 | int sector = MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])); |
1211 | ||
ef79bbde P |
1212 | if (cdHandle == NULL) { |
1213 | return -1; | |
1214 | } | |
1215 | ||
8aa91443 | 1216 | if (pregapOffset) { |
1217 | subChanMissing = FALSE; | |
1218 | if (sector >= pregapOffset) { | |
1219 | sector -= 2 * 75; | |
1220 | if (sector < pregapOffset) | |
1221 | subChanMissing = TRUE; | |
1222 | } | |
1223 | } | |
1224 | ||
9a92bffb | 1225 | cdimg_read_func(cdHandle, cdbuffer, sector, 12); |
ef79bbde | 1226 | |
9a92bffb | 1227 | if (subHandle != NULL) { |
1228 | fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET); | |
1229 | fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); | |
ef79bbde | 1230 | |
9a92bffb | 1231 | if (subChanRaw) DecodeRawSubData(); |
ef79bbde P |
1232 | } |
1233 | ||
1234 | return 0; | |
1235 | } | |
1236 | ||
ef79bbde P |
1237 | // plays cdda audio |
1238 | // sector: byte 0 - minute; byte 1 - second; byte 2 - frame | |
1239 | // does NOT uses bcd format | |
1240 | static long CALLBACK ISOplay(unsigned char *time) { | |
19c03d80 | 1241 | unsigned int i, abs_sect; |
1242 | int file_sect; | |
38b8102c | 1243 | |
7b8da7ab | 1244 | if (numtracks <= 1) |
1245 | return 0; | |
1246 | ||
38b8102c | 1247 | // find the track |
19c03d80 | 1248 | abs_sect = msf2sec((char *)time); |
38b8102c | 1249 | for (i = numtracks; i > 1; i--) |
19c03d80 | 1250 | if (msf2sec(ti[i].start) <= abs_sect + 2 * 75) |
38b8102c | 1251 | break; |
1252 | ||
19c03d80 | 1253 | file_sect = ti[i].start_offset + (abs_sect - msf2sec(ti[i].start)); |
1254 | if (file_sect < 0) | |
1255 | file_sect = 0; | |
1256 | ||
38b8102c | 1257 | // find the file that contains this track |
1258 | for (; i > 1; i--) | |
1259 | if (ti[i].handle != NULL) | |
1260 | break; | |
1261 | ||
9a92bffb | 1262 | cdda_start_sector = abs_sect - file_sect; |
38b8102c | 1263 | cddaHandle = ti[i].handle; |
1264 | ||
8aa91443 | 1265 | if (pregapOffset && (unsigned int)(pregapOffset - file_sect) < 2 * 75) { |
1266 | // get out of the missing pregap to avoid noise | |
1267 | file_sect = pregapOffset; | |
1268 | } | |
1269 | ||
ef79bbde | 1270 | if (SPU_playCDDAchannel != NULL) { |
9a92bffb | 1271 | startCDDA(file_sect); |
ef79bbde P |
1272 | } |
1273 | return 0; | |
1274 | } | |
1275 | ||
1276 | // stops cdda audio | |
1277 | static long CALLBACK ISOstop(void) { | |
1278 | stopCDDA(); | |
1279 | return 0; | |
1280 | } | |
1281 | ||
1282 | // gets subchannel data | |
1283 | static unsigned char* CALLBACK ISOgetBufferSub(void) { | |
8aa91443 | 1284 | if ((subHandle != NULL || subChanMixed) && !subChanMissing) { |
ef79bbde P |
1285 | return subbuffer; |
1286 | } | |
1287 | ||
1288 | return NULL; | |
1289 | } | |
1290 | ||
1291 | static long CALLBACK ISOgetStatus(struct CdrStat *stat) { | |
1292 | int sec; | |
1293 | ||
1294 | CDR__getStatus(stat); | |
1295 | ||
1296 | if (playing) { | |
1297 | stat->Type = 0x02; | |
1298 | stat->Status |= 0x80; | |
ef79bbde P |
1299 | } |
1300 | else { | |
1301 | stat->Type = 0x01; | |
1302 | } | |
1303 | ||
9a92bffb | 1304 | sec = cdda_start_sector + cdda_cur_sector; |
858ad511 | 1305 | sec2msf(sec, (char *)stat->Time); |
1306 | ||
ef79bbde P |
1307 | return 0; |
1308 | } | |
1309 | ||
1310 | void cdrIsoInit(void) { | |
1311 | CDR_init = ISOinit; | |
1312 | CDR_shutdown = ISOshutdown; | |
1313 | CDR_open = ISOopen; | |
1314 | CDR_close = ISOclose; | |
1315 | CDR_getTN = ISOgetTN; | |
1316 | CDR_getTD = ISOgetTD; | |
1317 | CDR_readTrack = ISOreadTrack; | |
1318 | CDR_getBuffer = ISOgetBuffer; | |
1319 | CDR_play = ISOplay; | |
1320 | CDR_stop = ISOstop; | |
1321 | CDR_getBufferSub = ISOgetBufferSub; | |
1322 | CDR_getStatus = ISOgetStatus; | |
1323 | ||
1324 | CDR_getDriveLetter = CDR__getDriveLetter; | |
1325 | CDR_configure = CDR__configure; | |
1326 | CDR_test = CDR__test; | |
1327 | CDR_about = CDR__about; | |
1328 | CDR_setfilename = CDR__setfilename; | |
1329 | ||
1330 | numtracks = 0; | |
1331 | } | |
1332 | ||
1333 | int cdrIsoActive(void) { | |
1334 | return (cdHandle != NULL); | |
1335 | } |