Commit | Line | Data |
---|---|---|
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 | |
34 | ||
35 | static FILE *cdHandle = NULL; | |
36 | static FILE *cddaHandle = NULL; | |
37 | static FILE *subHandle = NULL; | |
38 | ||
39 | static boolean subChanMixed = FALSE; | |
40 | static boolean subChanRaw = FALSE; | |
41 | ||
42 | static unsigned char cdbuffer[DATA_SIZE]; | |
43 | static unsigned char subbuffer[SUB_FRAMESIZE]; | |
44 | ||
45 | static unsigned char sndbuffer[CD_FRAMESIZE_RAW * 10]; | |
46 | ||
47 | #define CDDA_FRAMETIME (1000 * (sizeof(sndbuffer) / CD_FRAMESIZE_RAW) / 75) | |
48 | ||
49 | #ifdef _WIN32 | |
50 | static HANDLE threadid; | |
51 | #else | |
52 | static pthread_t threadid; | |
53 | #endif | |
54 | static unsigned int initial_offset = 0; | |
38b8102c | 55 | static boolean playing = FALSE; |
ef79bbde | 56 | static boolean cddaBigEndian = FALSE; |
38b8102c | 57 | static unsigned int cddaCurOffset = 0; |
58 | static unsigned int cddaStartOffset; | |
ef79bbde P |
59 | |
60 | char* CALLBACK CDR__getDriveLetter(void); | |
61 | long CALLBACK CDR__configure(void); | |
62 | long CALLBACK CDR__test(void); | |
63 | void CALLBACK CDR__about(void); | |
64 | long CALLBACK CDR__setfilename(char *filename); | |
65 | long CALLBACK CDR__getStatus(struct CdrStat *stat); | |
66 | ||
67 | extern void *hCDRDriver; | |
68 | ||
69 | struct trackinfo { | |
70 | enum {DATA, CDDA} type; | |
71 | char start[3]; // MSF-format | |
72 | char length[3]; // MSF-format | |
38b8102c | 73 | FILE *handle; // for multi-track images CDDA |
ef79bbde P |
74 | }; |
75 | ||
76 | #define MAXTRACKS 100 /* How many tracks can a CD hold? */ | |
77 | ||
78 | static int numtracks = 0; | |
79 | static struct trackinfo ti[MAXTRACKS]; | |
80 | ||
81 | // get a sector from a msf-array | |
82 | static unsigned int msf2sec(char *msf) { | |
83 | return ((msf[0] * 60 + msf[1]) * 75) + msf[2]; | |
84 | } | |
85 | ||
86 | static void sec2msf(unsigned int s, char *msf) { | |
87 | msf[0] = s / 75 / 60; | |
88 | s = s - msf[0] * 75 * 60; | |
89 | msf[1] = s / 75; | |
90 | s = s - msf[1] * 75; | |
91 | msf[2] = s; | |
92 | } | |
93 | ||
94 | // divide a string of xx:yy:zz into m, s, f | |
95 | static void tok2msf(char *time, char *msf) { | |
96 | char *token; | |
97 | ||
98 | token = strtok(time, ":"); | |
99 | if (token) { | |
100 | msf[0] = atoi(token); | |
101 | } | |
102 | else { | |
103 | msf[0] = 0; | |
104 | } | |
105 | ||
106 | token = strtok(NULL, ":"); | |
107 | if (token) { | |
108 | msf[1] = atoi(token); | |
109 | } | |
110 | else { | |
111 | msf[1] = 0; | |
112 | } | |
113 | ||
114 | token = strtok(NULL, ":"); | |
115 | if (token) { | |
116 | msf[2] = atoi(token); | |
117 | } | |
118 | else { | |
119 | msf[2] = 0; | |
120 | } | |
121 | } | |
122 | ||
123 | #ifndef _WIN32 | |
124 | static long GetTickCount(void) { | |
125 | static time_t initial_time = 0; | |
126 | struct timeval now; | |
127 | ||
128 | gettimeofday(&now, NULL); | |
129 | ||
130 | if (initial_time == 0) { | |
131 | initial_time = now.tv_sec; | |
132 | } | |
133 | ||
134 | return (now.tv_sec - initial_time) * 1000L + now.tv_usec / 1000L; | |
135 | } | |
136 | #endif | |
137 | ||
138 | // this thread plays audio data | |
139 | #ifdef _WIN32 | |
140 | static void playthread(void *param) | |
141 | #else | |
142 | static void *playthread(void *param) | |
143 | #endif | |
144 | { | |
145 | long d, t, i, s; | |
146 | unsigned char tmp; | |
147 | ||
148 | t = GetTickCount(); | |
149 | ||
150 | while (playing) { | |
151 | d = t - (long)GetTickCount(); | |
152 | if (d <= 0) { | |
153 | d = 1; | |
154 | } | |
155 | else if (d > CDDA_FRAMETIME) { | |
156 | d = CDDA_FRAMETIME; | |
157 | } | |
158 | #ifdef _WIN32 | |
159 | Sleep(d); | |
160 | #else | |
161 | usleep(d * 1000); | |
162 | #endif | |
d4a1e87d | 163 | // HACK: stop feeding data while emu is paused |
164 | extern int stop; | |
165 | if (stop) { | |
166 | usleep(100000); | |
167 | continue; | |
168 | } | |
ef79bbde P |
169 | |
170 | t = GetTickCount() + CDDA_FRAMETIME; | |
171 | ||
172 | if (subChanMixed) { | |
173 | s = 0; | |
174 | ||
175 | for (i = 0; i < sizeof(sndbuffer) / CD_FRAMESIZE_RAW; i++) { | |
176 | // read one sector | |
177 | d = fread(sndbuffer + CD_FRAMESIZE_RAW * i, 1, CD_FRAMESIZE_RAW, cddaHandle); | |
178 | if (d < CD_FRAMESIZE_RAW) { | |
179 | break; | |
180 | } | |
181 | ||
182 | s += d; | |
183 | ||
184 | // skip the subchannel data | |
185 | fseek(cddaHandle, SUB_FRAMESIZE, SEEK_CUR); | |
186 | } | |
187 | } | |
188 | else { | |
189 | s = fread(sndbuffer, 1, sizeof(sndbuffer), cddaHandle); | |
190 | } | |
191 | ||
192 | if (s == 0) { | |
193 | playing = FALSE; | |
ef79bbde P |
194 | initial_offset = 0; |
195 | break; | |
196 | } | |
197 | ||
198 | if (!cdr.Muted && playing) { | |
199 | if (cddaBigEndian) { | |
200 | for (i = 0; i < s / 2; i++) { | |
201 | tmp = sndbuffer[i * 2]; | |
202 | sndbuffer[i * 2] = sndbuffer[i * 2 + 1]; | |
203 | sndbuffer[i * 2 + 1] = tmp; | |
204 | } | |
205 | } | |
206 | ||
207 | SPU_playCDDAchannel((short *)sndbuffer, s); | |
208 | } | |
209 | ||
210 | cddaCurOffset += s; | |
211 | } | |
212 | ||
213 | #ifdef _WIN32 | |
214 | _endthread(); | |
215 | #else | |
216 | pthread_exit(0); | |
217 | return NULL; | |
218 | #endif | |
219 | } | |
220 | ||
221 | // stop the CDDA playback | |
222 | static void stopCDDA() { | |
223 | if (!playing) { | |
224 | return; | |
225 | } | |
226 | ||
227 | playing = FALSE; | |
228 | #ifdef _WIN32 | |
229 | WaitForSingleObject(threadid, INFINITE); | |
230 | #else | |
231 | pthread_join(threadid, NULL); | |
232 | #endif | |
233 | ||
ef79bbde P |
234 | initial_offset = 0; |
235 | } | |
236 | ||
237 | // start the CDDA playback | |
238 | static void startCDDA(unsigned int offset) { | |
239 | if (playing) { | |
240 | if (initial_offset == offset) { | |
241 | return; | |
242 | } | |
243 | stopCDDA(); | |
244 | } | |
245 | ||
ef79bbde P |
246 | initial_offset = offset; |
247 | cddaCurOffset = initial_offset; | |
248 | fseek(cddaHandle, initial_offset, SEEK_SET); | |
249 | ||
250 | playing = TRUE; | |
251 | ||
252 | #ifdef _WIN32 | |
253 | threadid = (HANDLE)_beginthread(playthread, 0, NULL); | |
254 | #else | |
255 | pthread_create(&threadid, NULL, playthread, NULL); | |
256 | #endif | |
257 | } | |
258 | ||
259 | // this function tries to get the .toc file of the given .bin | |
260 | // the necessary data is put into the ti (trackinformation)-array | |
261 | static int parsetoc(const char *isofile) { | |
262 | char tocname[MAXPATHLEN]; | |
263 | FILE *fi; | |
264 | char linebuf[256], dummy[256], name[256]; | |
265 | char *token; | |
266 | char time[20], time2[20]; | |
267 | unsigned int t; | |
268 | ||
269 | numtracks = 0; | |
270 | ||
271 | // copy name of the iso and change extension from .bin to .toc | |
272 | strncpy(tocname, isofile, sizeof(tocname)); | |
273 | tocname[MAXPATHLEN - 1] = '\0'; | |
274 | if (strlen(tocname) >= 4) { | |
275 | strcpy(tocname + strlen(tocname) - 4, ".toc"); | |
276 | } | |
277 | else { | |
278 | return -1; | |
279 | } | |
280 | ||
281 | if ((fi = fopen(tocname, "r")) == NULL) { | |
282 | // try changing extension to .cue (to satisfy some stupid tutorials) | |
283 | strcpy(tocname + strlen(tocname) - 4, ".cue"); | |
284 | if ((fi = fopen(tocname, "r")) == NULL) { | |
285 | // if filename is image.toc.bin, try removing .bin (for Brasero) | |
286 | strcpy(tocname, isofile); | |
287 | t = strlen(tocname); | |
288 | if (t >= 8 && strcmp(tocname + t - 8, ".toc.bin") == 0) { | |
289 | tocname[t - 4] = '\0'; | |
290 | if ((fi = fopen(tocname, "r")) == NULL) { | |
291 | return -1; | |
292 | } | |
293 | } | |
294 | else { | |
295 | return -1; | |
296 | } | |
297 | } | |
298 | } | |
299 | ||
300 | memset(&ti, 0, sizeof(ti)); | |
301 | cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio | |
302 | ||
303 | // parse the .toc file | |
304 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
305 | // search for tracks | |
306 | strncpy(dummy, linebuf, sizeof(linebuf)); | |
307 | token = strtok(dummy, " "); | |
308 | ||
309 | if (token == NULL) continue; | |
310 | ||
311 | if (!strcmp(token, "TRACK")) { | |
312 | // get type of track | |
313 | token = strtok(NULL, " "); | |
314 | numtracks++; | |
315 | ||
316 | if (!strncmp(token, "MODE2_RAW", 9)) { | |
317 | ti[numtracks].type = DATA; | |
318 | sec2msf(2 * 75, ti[numtracks].start); // assume data track on 0:2:0 | |
319 | ||
320 | // check if this image contains mixed subchannel data | |
321 | token = strtok(NULL, " "); | |
322 | if (token != NULL && !strncmp(token, "RW_RAW", 6)) { | |
323 | subChanMixed = TRUE; | |
324 | subChanRaw = TRUE; | |
325 | } | |
326 | } | |
327 | else if (!strncmp(token, "AUDIO", 5)) { | |
328 | ti[numtracks].type = CDDA; | |
329 | } | |
330 | } | |
331 | else if (!strcmp(token, "DATAFILE")) { | |
332 | if (ti[numtracks].type == CDDA) { | |
333 | sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2); | |
334 | t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0); | |
335 | t += 2 * 75; | |
336 | sec2msf(t, (char *)&ti[numtracks].start); | |
337 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
338 | } | |
339 | else { | |
340 | sscanf(linebuf, "DATAFILE \"%[^\"]\" %8s", name, time); | |
341 | tok2msf((char *)&time, (char *)&ti[numtracks].length); | |
342 | } | |
343 | } | |
344 | else if (!strcmp(token, "FILE")) { | |
345 | sscanf(linebuf, "FILE \"%[^\"]\" #%d %8s %8s", name, &t, time, time2); | |
346 | tok2msf((char *)&time, (char *)&ti[numtracks].start); | |
347 | t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0); | |
348 | t += msf2sec(ti[numtracks].start) + 2 * 75; | |
349 | sec2msf(t, (char *)&ti[numtracks].start); | |
350 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
351 | } | |
352 | } | |
353 | ||
354 | fclose(fi); | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
359 | // this function tries to get the .cue file of the given .bin | |
360 | // the necessary data is put into the ti (trackinformation)-array | |
361 | static int parsecue(const char *isofile) { | |
362 | char cuename[MAXPATHLEN]; | |
38b8102c | 363 | char filepath[MAXPATHLEN]; |
364 | char *incue_fname; | |
ef79bbde P |
365 | FILE *fi; |
366 | char *token; | |
367 | char time[20]; | |
368 | char *tmp; | |
369 | char linebuf[256], dummy[256]; | |
38b8102c | 370 | unsigned int incue_max_len; |
371 | unsigned int t, i, total, file_len; | |
ef79bbde P |
372 | |
373 | numtracks = 0; | |
374 | ||
375 | // copy name of the iso and change extension from .bin to .cue | |
376 | strncpy(cuename, isofile, sizeof(cuename)); | |
377 | cuename[MAXPATHLEN - 1] = '\0'; | |
378 | if (strlen(cuename) >= 4) { | |
379 | strcpy(cuename + strlen(cuename) - 4, ".cue"); | |
380 | } | |
381 | else { | |
382 | return -1; | |
383 | } | |
384 | ||
385 | if ((fi = fopen(cuename, "r")) == NULL) { | |
386 | return -1; | |
387 | } | |
388 | ||
389 | // Some stupid tutorials wrongly tell users to use cdrdao to rip a | |
390 | // "bin/cue" image, which is in fact a "bin/toc" image. So let's check | |
391 | // that... | |
392 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
393 | if (!strncmp(linebuf, "CD_ROM_XA", 9)) { | |
394 | // Don't proceed further, as this is actually a .toc file rather | |
395 | // than a .cue file. | |
396 | fclose(fi); | |
397 | return parsetoc(isofile); | |
398 | } | |
399 | fseek(fi, 0, SEEK_SET); | |
400 | } | |
401 | ||
38b8102c | 402 | // build a path for files referenced in .cue |
403 | strncpy(filepath, cuename, sizeof(filepath)); | |
404 | tmp = strrchr(filepath, '/') + 1; | |
405 | if (tmp == NULL) | |
406 | tmp = strrchr(filepath, '\\') + 1; | |
407 | if (tmp == NULL) | |
408 | tmp = filepath; | |
409 | *tmp = 0; | |
410 | filepath[sizeof(filepath) - 1] = 0; | |
411 | incue_fname = tmp; | |
412 | incue_max_len = sizeof(filepath) - (tmp - filepath) - 1; | |
413 | ||
ef79bbde P |
414 | memset(&ti, 0, sizeof(ti)); |
415 | ||
416 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
417 | strncpy(dummy, linebuf, sizeof(linebuf)); | |
418 | token = strtok(dummy, " "); | |
419 | ||
420 | if (token == NULL) { | |
421 | continue; | |
422 | } | |
423 | ||
424 | if (!strcmp(token, "TRACK")){ | |
425 | numtracks++; | |
426 | ||
427 | if (strstr(linebuf, "AUDIO") != NULL) { | |
428 | ti[numtracks].type = CDDA; | |
429 | } | |
430 | else if (strstr(linebuf, "MODE1/2352") != NULL || strstr(linebuf, "MODE2/2352") != NULL) { | |
431 | ti[numtracks].type = DATA; | |
432 | } | |
433 | } | |
434 | else if (!strcmp(token, "INDEX")) { | |
435 | tmp = strstr(linebuf, "INDEX"); | |
436 | if (tmp != NULL) { | |
437 | tmp += strlen("INDEX") + 3; // 3 - space + numeric index | |
438 | while (*tmp == ' ') tmp++; | |
439 | if (*tmp != '\n') sscanf(tmp, "%8s", time); | |
440 | } | |
441 | ||
442 | tok2msf((char *)&time, (char *)&ti[numtracks].start); | |
443 | ||
444 | t = msf2sec(ti[numtracks].start) + 2 * 75; | |
445 | sec2msf(t, ti[numtracks].start); | |
38b8102c | 446 | } |
447 | else if (!strcmp(token, "FILE")) { | |
448 | tmp = strstr(linebuf, "FILE"); | |
449 | if (tmp == NULL) { | |
450 | continue; | |
451 | } | |
452 | tmp += 4; | |
453 | while (*tmp == ' ') | |
454 | tmp++; | |
455 | if (*tmp == '"') { | |
456 | token = tmp + 1; | |
457 | tmp = strchr(token, '"'); | |
458 | if (tmp != NULL) | |
459 | *tmp = 0; | |
460 | } | |
461 | else { | |
462 | token = tmp; | |
463 | tmp = strchr(token, ' '); | |
464 | if (tmp != NULL) | |
465 | *tmp = 0; | |
466 | } | |
ef79bbde | 467 | |
38b8102c | 468 | strncpy(incue_fname, token, incue_max_len); |
469 | ti[numtracks + 1].handle = fopen(filepath, "rb"); | |
470 | if (ti[numtracks + 1].handle == NULL) { | |
471 | SysPrintf(_("could not open: %s\n"), filepath); | |
472 | } | |
473 | else if (numtracks == 0 && strlen(isofile) >= 4 && | |
474 | strcmp(isofile + strlen(isofile) - 4, ".cue") == 0) { | |
475 | // user selected .cue as image file, use it's data track instead | |
476 | fclose(cdHandle); | |
477 | cdHandle = fopen(filepath, "rb"); | |
ef79bbde P |
478 | } |
479 | } | |
480 | } | |
481 | ||
482 | fclose(fi); | |
483 | ||
38b8102c | 484 | // make corrections for multi-track .cue, fill track lengths |
485 | total = 2 * 75; | |
486 | file_len = 0; | |
487 | for (i = 1; i <= numtracks; i++) { | |
488 | if (ti[i].handle != NULL) { | |
489 | sec2msf(total, ti[i].start); | |
490 | fseek(ti[i].handle, 0, SEEK_END); | |
491 | file_len = ftell(ti[i].handle) / 2352; | |
492 | sec2msf(file_len, ti[i].length); | |
493 | total += file_len; | |
494 | } | |
495 | else { | |
496 | // this track uses the same file as the last, | |
497 | // start of this track is last track's end | |
498 | if (i > 1) { | |
499 | t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start); | |
500 | sec2msf(t, ti[i - 1].length); | |
501 | } | |
502 | t = file_len - msf2sec(ti[i].start) + 2 * 75; | |
503 | sec2msf(t, ti[i].length); | |
504 | } | |
ef79bbde P |
505 | } |
506 | ||
507 | return 0; | |
508 | } | |
509 | ||
510 | // this function tries to get the .ccd file of the given .img | |
511 | // the necessary data is put into the ti (trackinformation)-array | |
512 | static int parseccd(const char *isofile) { | |
513 | char ccdname[MAXPATHLEN]; | |
514 | FILE *fi; | |
515 | char linebuf[256]; | |
516 | unsigned int t; | |
517 | ||
518 | numtracks = 0; | |
519 | ||
520 | // copy name of the iso and change extension from .img to .ccd | |
521 | strncpy(ccdname, isofile, sizeof(ccdname)); | |
522 | ccdname[MAXPATHLEN - 1] = '\0'; | |
523 | if (strlen(ccdname) >= 4) { | |
524 | strcpy(ccdname + strlen(ccdname) - 4, ".ccd"); | |
525 | } | |
526 | else { | |
527 | return -1; | |
528 | } | |
529 | ||
530 | if ((fi = fopen(ccdname, "r")) == NULL) { | |
531 | return -1; | |
532 | } | |
533 | ||
534 | memset(&ti, 0, sizeof(ti)); | |
535 | ||
536 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
537 | if (!strncmp(linebuf, "[TRACK", 6)){ | |
538 | numtracks++; | |
539 | } | |
540 | else if (!strncmp(linebuf, "MODE=", 5)) { | |
541 | sscanf(linebuf, "MODE=%d", &t); | |
542 | ti[numtracks].type = ((t == 0) ? CDDA : DATA); | |
543 | } | |
544 | else if (!strncmp(linebuf, "INDEX 1=", 8)) { | |
545 | sscanf(linebuf, "INDEX 1=%d", &t); | |
546 | sec2msf(t + 2 * 75, ti[numtracks].start); | |
547 | ||
548 | // If we've already seen another track, this is its end | |
549 | if (numtracks > 1) { | |
550 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
551 | sec2msf(t, ti[numtracks - 1].length); | |
552 | } | |
553 | } | |
554 | } | |
555 | ||
556 | fclose(fi); | |
557 | ||
558 | // Fill out the last track's end based on size | |
559 | if (numtracks >= 1) { | |
560 | fseek(cdHandle, 0, SEEK_END); | |
561 | t = ftell(cdHandle) / 2352 - msf2sec(ti[numtracks].start) + 2 * 75; | |
562 | sec2msf(t, ti[numtracks].length); | |
563 | } | |
564 | ||
565 | return 0; | |
566 | } | |
567 | ||
568 | // this function tries to get the .mds file of the given .mdf | |
569 | // the necessary data is put into the ti (trackinformation)-array | |
570 | static int parsemds(const char *isofile) { | |
571 | char mdsname[MAXPATHLEN]; | |
572 | FILE *fi; | |
573 | unsigned int offset, extra_offset, l, i; | |
574 | unsigned short s; | |
575 | ||
576 | numtracks = 0; | |
577 | ||
578 | // copy name of the iso and change extension from .mdf to .mds | |
579 | strncpy(mdsname, isofile, sizeof(mdsname)); | |
580 | mdsname[MAXPATHLEN - 1] = '\0'; | |
581 | if (strlen(mdsname) >= 4) { | |
582 | strcpy(mdsname + strlen(mdsname) - 4, ".mds"); | |
583 | } | |
584 | else { | |
585 | return -1; | |
586 | } | |
587 | ||
588 | if ((fi = fopen(mdsname, "rb")) == NULL) { | |
589 | return -1; | |
590 | } | |
591 | ||
592 | memset(&ti, 0, sizeof(ti)); | |
593 | ||
594 | // check if it's a valid mds file | |
595 | fread(&i, 1, sizeof(unsigned int), fi); | |
596 | i = SWAP32(i); | |
597 | if (i != 0x4944454D) { | |
598 | // not an valid mds file | |
599 | fclose(fi); | |
600 | return -1; | |
601 | } | |
602 | ||
603 | // get offset to session block | |
604 | fseek(fi, 0x50, SEEK_SET); | |
605 | fread(&offset, 1, sizeof(unsigned int), fi); | |
606 | offset = SWAP32(offset); | |
607 | ||
608 | // get total number of tracks | |
609 | offset += 14; | |
610 | fseek(fi, offset, SEEK_SET); | |
611 | fread(&s, 1, sizeof(unsigned short), fi); | |
612 | s = SWAP16(s); | |
613 | numtracks = s; | |
614 | ||
615 | // get offset to track blocks | |
616 | fseek(fi, 4, SEEK_CUR); | |
617 | fread(&offset, 1, sizeof(unsigned int), fi); | |
618 | offset = SWAP32(offset); | |
619 | ||
620 | // skip lead-in data | |
621 | while (1) { | |
622 | fseek(fi, offset + 4, SEEK_SET); | |
623 | if (fgetc(fi) < 0xA0) { | |
624 | break; | |
625 | } | |
626 | offset += 0x50; | |
627 | } | |
628 | ||
629 | // check if the image contains mixed subchannel data | |
630 | fseek(fi, offset + 1, SEEK_SET); | |
631 | subChanMixed = (fgetc(fi) ? TRUE : FALSE); | |
632 | ||
633 | // read track data | |
634 | for (i = 1; i <= numtracks; i++) { | |
635 | fseek(fi, offset, SEEK_SET); | |
636 | ||
637 | // get the track type | |
638 | ti[i].type = ((fgetc(fi) == 0xA9) ? CDDA : DATA); | |
639 | fseek(fi, 8, SEEK_CUR); | |
640 | ||
641 | // get the track starting point | |
642 | ti[i].start[0] = fgetc(fi); | |
643 | ti[i].start[1] = fgetc(fi); | |
644 | ti[i].start[2] = fgetc(fi); | |
645 | ||
646 | if (i > 1) { | |
647 | l = msf2sec(ti[i].start); | |
648 | sec2msf(l - 2 * 75, ti[i].start); // ??? | |
649 | } | |
650 | ||
651 | // get the track length | |
652 | fread(&extra_offset, 1, sizeof(unsigned int), fi); | |
653 | extra_offset = SWAP32(extra_offset); | |
654 | ||
655 | fseek(fi, extra_offset + 4, SEEK_SET); | |
656 | fread(&l, 1, sizeof(unsigned int), fi); | |
657 | l = SWAP32(l); | |
658 | sec2msf(l, ti[i].length); | |
659 | ||
660 | offset += 0x50; | |
661 | } | |
662 | ||
663 | fclose(fi); | |
664 | return 0; | |
665 | } | |
666 | ||
667 | // this function tries to get the .sub file of the given .img | |
668 | static int opensubfile(const char *isoname) { | |
669 | char subname[MAXPATHLEN]; | |
670 | ||
671 | // copy name of the iso and change extension from .img to .sub | |
672 | strncpy(subname, isoname, sizeof(subname)); | |
673 | subname[MAXPATHLEN - 1] = '\0'; | |
674 | if (strlen(subname) >= 4) { | |
675 | strcpy(subname + strlen(subname) - 4, ".sub"); | |
676 | } | |
677 | else { | |
678 | return -1; | |
679 | } | |
680 | ||
681 | subHandle = fopen(subname, "rb"); | |
682 | if (subHandle == NULL) { | |
683 | return -1; | |
684 | } | |
685 | ||
686 | return 0; | |
687 | } | |
688 | ||
ae4e7dc9 | 689 | static int opensbifile(const char *isoname) { |
690 | char sbiname[MAXPATHLEN]; | |
691 | int s; | |
692 | ||
693 | strncpy(sbiname, isoname, sizeof(sbiname)); | |
694 | sbiname[MAXPATHLEN - 1] = '\0'; | |
695 | if (strlen(sbiname) >= 4) { | |
696 | strcpy(sbiname + strlen(sbiname) - 4, ".sbi"); | |
697 | } | |
698 | else { | |
699 | return -1; | |
700 | } | |
701 | ||
702 | fseek(cdHandle, 0, SEEK_END); | |
703 | s = ftell(cdHandle) / 2352; | |
704 | ||
705 | return LoadSBI(sbiname, s); | |
706 | } | |
707 | ||
ef79bbde P |
708 | static void PrintTracks(void) { |
709 | int i; | |
710 | ||
711 | for (i = 1; i <= numtracks; i++) { | |
712 | SysPrintf(_("Track %.2d (%s) - Start %.2d:%.2d:%.2d, Length %.2d:%.2d:%.2d\n"), | |
713 | i, (ti[i].type == DATA ? "DATA" : "AUDIO"), | |
714 | ti[i].start[0], ti[i].start[1], ti[i].start[2], | |
715 | ti[i].length[0], ti[i].length[1], ti[i].length[2]); | |
716 | } | |
717 | } | |
718 | ||
719 | // This function is invoked by the front-end when opening an ISO | |
720 | // file for playback | |
721 | static long CALLBACK ISOopen(void) { | |
722 | if (cdHandle != NULL) { | |
723 | return 0; // it's already open | |
724 | } | |
725 | ||
726 | cdHandle = fopen(GetIsoFile(), "rb"); | |
727 | if (cdHandle == NULL) { | |
728 | return -1; | |
729 | } | |
730 | ||
731 | SysPrintf(_("Loaded CD Image: %s"), GetIsoFile()); | |
732 | ||
733 | cddaBigEndian = FALSE; | |
734 | subChanMixed = FALSE; | |
735 | subChanRaw = FALSE; | |
736 | ||
737 | if (parsecue(GetIsoFile()) == 0) { | |
738 | SysPrintf("[+cue]"); | |
739 | } | |
740 | else if (parsetoc(GetIsoFile()) == 0) { | |
741 | SysPrintf("[+toc]"); | |
742 | } | |
743 | else if (parseccd(GetIsoFile()) == 0) { | |
744 | SysPrintf("[+ccd]"); | |
745 | } | |
746 | else if (parsemds(GetIsoFile()) == 0) { | |
747 | SysPrintf("[+mds]"); | |
748 | } | |
749 | ||
750 | if (!subChanMixed && opensubfile(GetIsoFile()) == 0) { | |
751 | SysPrintf("[+sub]"); | |
752 | } | |
ae4e7dc9 | 753 | if (opensbifile(GetIsoFile()) == 0) { |
754 | SysPrintf("[+sbi]"); | |
755 | } | |
ef79bbde P |
756 | |
757 | SysPrintf(".\n"); | |
758 | ||
759 | PrintTracks(); | |
760 | ||
38b8102c | 761 | // make sure we have another handle open for cdda |
762 | if (numtracks > 1 && ti[1].handle == NULL) { | |
763 | ti[1].handle = fopen(GetIsoFile(), "rb"); | |
764 | } | |
858ad511 | 765 | cddaCurOffset = cddaStartOffset = 0; |
38b8102c | 766 | |
ef79bbde P |
767 | return 0; |
768 | } | |
769 | ||
770 | static long CALLBACK ISOclose(void) { | |
38b8102c | 771 | int i; |
772 | ||
ef79bbde P |
773 | if (cdHandle != NULL) { |
774 | fclose(cdHandle); | |
775 | cdHandle = NULL; | |
776 | } | |
777 | if (subHandle != NULL) { | |
778 | fclose(subHandle); | |
779 | subHandle = NULL; | |
780 | } | |
781 | stopCDDA(); | |
38b8102c | 782 | cddaHandle = NULL; |
783 | ||
784 | for (i = 1; i <= numtracks; i++) { | |
785 | if (ti[i].handle != NULL) { | |
786 | fclose(ti[i].handle); | |
787 | ti[i].handle = NULL; | |
788 | } | |
789 | } | |
790 | numtracks = 0; | |
ae4e7dc9 | 791 | UnloadSBI(); |
38b8102c | 792 | |
793 | return 0; | |
794 | } | |
795 | ||
796 | static long CALLBACK ISOinit(void) { | |
797 | assert(cdHandle == NULL); | |
798 | assert(subHandle == NULL); | |
799 | ||
800 | return 0; // do nothing | |
801 | } | |
802 | ||
803 | static long CALLBACK ISOshutdown(void) { | |
804 | ISOclose(); | |
ef79bbde P |
805 | return 0; |
806 | } | |
807 | ||
808 | // return Starting and Ending Track | |
809 | // buffer: | |
810 | // byte 0 - start track | |
811 | // byte 1 - end track | |
812 | static long CALLBACK ISOgetTN(unsigned char *buffer) { | |
813 | buffer[0] = 1; | |
814 | ||
815 | if (numtracks > 0) { | |
816 | buffer[1] = numtracks; | |
817 | } | |
818 | else { | |
819 | buffer[1] = 1; | |
820 | } | |
821 | ||
822 | return 0; | |
823 | } | |
824 | ||
825 | // return Track Time | |
826 | // buffer: | |
827 | // byte 0 - frame | |
828 | // byte 1 - second | |
829 | // byte 2 - minute | |
830 | static long CALLBACK ISOgetTD(unsigned char track, unsigned char *buffer) { | |
858ad511 | 831 | if (track == 0) { |
832 | // CD length according pcsxr-svn (done a bit different here) | |
833 | unsigned int sect; | |
834 | unsigned char time[3]; | |
835 | sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length); | |
836 | sec2msf(sect, time); | |
837 | buffer[2] = time[0]; | |
838 | buffer[1] = time[1]; | |
839 | buffer[0] = time[2]; | |
840 | } | |
841 | else if (numtracks > 0 && track <= numtracks) { | |
ef79bbde P |
842 | buffer[2] = ti[track].start[0]; |
843 | buffer[1] = ti[track].start[1]; | |
844 | buffer[0] = ti[track].start[2]; | |
845 | } | |
846 | else { | |
847 | buffer[2] = 0; | |
848 | buffer[1] = 2; | |
849 | buffer[0] = 0; | |
850 | } | |
851 | ||
852 | return 0; | |
853 | } | |
854 | ||
855 | // decode 'raw' subchannel data ripped by cdrdao | |
856 | static void DecodeRawSubData(void) { | |
857 | unsigned char subQData[12]; | |
858 | int i; | |
859 | ||
860 | memset(subQData, 0, sizeof(subQData)); | |
861 | ||
862 | for (i = 0; i < 8 * 12; i++) { | |
863 | if (subbuffer[i] & (1 << 6)) { // only subchannel Q is needed | |
864 | subQData[i >> 3] |= (1 << (7 - (i & 7))); | |
865 | } | |
866 | } | |
867 | ||
868 | memcpy(&subbuffer[12], subQData, 12); | |
869 | } | |
870 | ||
871 | // read track | |
872 | // time: byte 0 - minute; byte 1 - second; byte 2 - frame | |
873 | // uses bcd format | |
874 | static long CALLBACK ISOreadTrack(unsigned char *time) { | |
875 | if (cdHandle == NULL) { | |
876 | return -1; | |
877 | } | |
878 | ||
879 | if (subChanMixed) { | |
880 | fseek(cdHandle, MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])) * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + 12, SEEK_SET); | |
881 | fread(cdbuffer, 1, DATA_SIZE, cdHandle); | |
882 | fread(subbuffer, 1, SUB_FRAMESIZE, cdHandle); | |
883 | ||
884 | if (subChanRaw) DecodeRawSubData(); | |
885 | } | |
886 | else { | |
887 | fseek(cdHandle, MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])) * CD_FRAMESIZE_RAW + 12, SEEK_SET); | |
888 | fread(cdbuffer, 1, DATA_SIZE, cdHandle); | |
889 | ||
890 | if (subHandle != NULL) { | |
891 | fseek(subHandle, MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])) * SUB_FRAMESIZE, SEEK_SET); | |
892 | fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); | |
893 | ||
894 | if (subChanRaw) DecodeRawSubData(); | |
895 | } | |
896 | } | |
897 | ||
898 | return 0; | |
899 | } | |
900 | ||
901 | // return readed track | |
902 | static unsigned char * CALLBACK ISOgetBuffer(void) { | |
903 | return cdbuffer; | |
904 | } | |
905 | ||
906 | // plays cdda audio | |
907 | // sector: byte 0 - minute; byte 1 - second; byte 2 - frame | |
908 | // does NOT uses bcd format | |
909 | static long CALLBACK ISOplay(unsigned char *time) { | |
38b8102c | 910 | unsigned int i, sect; |
911 | ||
7b8da7ab | 912 | if (numtracks <= 1) |
913 | return 0; | |
914 | ||
38b8102c | 915 | // find the track |
916 | sect = msf2sec(time); | |
917 | for (i = numtracks; i > 1; i--) | |
918 | if (msf2sec(ti[i].start) <= sect + 2 * 75) | |
919 | break; | |
920 | ||
921 | // find the file that contains this track | |
922 | for (; i > 1; i--) | |
923 | if (ti[i].handle != NULL) | |
924 | break; | |
925 | ||
926 | cddaStartOffset = msf2sec(ti[i].start); | |
927 | sect -= cddaStartOffset - 2 * 75; | |
928 | cddaHandle = ti[i].handle; | |
929 | ||
ef79bbde P |
930 | if (SPU_playCDDAchannel != NULL) { |
931 | if (subChanMixed) { | |
38b8102c | 932 | startCDDA(sect * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE)); |
ef79bbde P |
933 | } |
934 | else { | |
38b8102c | 935 | startCDDA(sect * CD_FRAMESIZE_RAW); |
ef79bbde P |
936 | } |
937 | } | |
938 | return 0; | |
939 | } | |
940 | ||
941 | // stops cdda audio | |
942 | static long CALLBACK ISOstop(void) { | |
943 | stopCDDA(); | |
944 | return 0; | |
945 | } | |
946 | ||
947 | // gets subchannel data | |
948 | static unsigned char* CALLBACK ISOgetBufferSub(void) { | |
949 | if (subHandle != NULL || subChanMixed) { | |
950 | return subbuffer; | |
951 | } | |
952 | ||
953 | return NULL; | |
954 | } | |
955 | ||
956 | static long CALLBACK ISOgetStatus(struct CdrStat *stat) { | |
957 | int sec; | |
958 | ||
959 | CDR__getStatus(stat); | |
960 | ||
961 | if (playing) { | |
962 | stat->Type = 0x02; | |
963 | stat->Status |= 0x80; | |
ef79bbde P |
964 | } |
965 | else { | |
966 | stat->Type = 0x01; | |
967 | } | |
968 | ||
858ad511 | 969 | sec = (cddaStartOffset + cddaCurOffset) / CD_FRAMESIZE_RAW; |
970 | sec2msf(sec, (char *)stat->Time); | |
971 | ||
ef79bbde P |
972 | return 0; |
973 | } | |
974 | ||
975 | void cdrIsoInit(void) { | |
976 | CDR_init = ISOinit; | |
977 | CDR_shutdown = ISOshutdown; | |
978 | CDR_open = ISOopen; | |
979 | CDR_close = ISOclose; | |
980 | CDR_getTN = ISOgetTN; | |
981 | CDR_getTD = ISOgetTD; | |
982 | CDR_readTrack = ISOreadTrack; | |
983 | CDR_getBuffer = ISOgetBuffer; | |
984 | CDR_play = ISOplay; | |
985 | CDR_stop = ISOstop; | |
986 | CDR_getBufferSub = ISOgetBufferSub; | |
987 | CDR_getStatus = ISOgetStatus; | |
988 | ||
989 | CDR_getDriveLetter = CDR__getDriveLetter; | |
990 | CDR_configure = CDR__configure; | |
991 | CDR_test = CDR__test; | |
992 | CDR_about = CDR__about; | |
993 | CDR_setfilename = CDR__setfilename; | |
994 | ||
995 | numtracks = 0; | |
996 | } | |
997 | ||
998 | int cdrIsoActive(void) { | |
999 | return (cdHandle != NULL); | |
1000 | } |