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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 | |
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; | |
8aa91443 | 41 | static boolean subChanMissing = FALSE; |
ef79bbde P |
42 | |
43 | static unsigned char cdbuffer[DATA_SIZE]; | |
44 | static unsigned char subbuffer[SUB_FRAMESIZE]; | |
45 | ||
46 | static unsigned char sndbuffer[CD_FRAMESIZE_RAW * 10]; | |
47 | ||
48 | #define CDDA_FRAMETIME (1000 * (sizeof(sndbuffer) / CD_FRAMESIZE_RAW) / 75) | |
49 | ||
50 | #ifdef _WIN32 | |
51 | static HANDLE threadid; | |
52 | #else | |
53 | static pthread_t threadid; | |
54 | #endif | |
55 | static unsigned int initial_offset = 0; | |
38b8102c | 56 | static boolean playing = FALSE; |
ef79bbde | 57 | static boolean cddaBigEndian = FALSE; |
38b8102c | 58 | static unsigned int cddaCurOffset = 0; |
59 | static unsigned int cddaStartOffset; | |
8aa91443 | 60 | /* Frame offset into CD image where pregap data would be found if it was there. |
61 | * If a game seeks there we must *not* return subchannel data since it's | |
62 | * not in the CD image, so that cdrom code can fake subchannel data instead. | |
63 | * XXX: there could be multiple pregaps but PSX dumps only have one? */ | |
64 | static unsigned int pregapOffset; | |
ef79bbde P |
65 | |
66 | char* CALLBACK CDR__getDriveLetter(void); | |
67 | long CALLBACK CDR__configure(void); | |
68 | long CALLBACK CDR__test(void); | |
69 | void CALLBACK CDR__about(void); | |
70 | long CALLBACK CDR__setfilename(char *filename); | |
71 | long CALLBACK CDR__getStatus(struct CdrStat *stat); | |
72 | ||
19c03d80 | 73 | static void DecodeRawSubData(void); |
74 | ||
ef79bbde P |
75 | extern void *hCDRDriver; |
76 | ||
77 | struct trackinfo { | |
78 | enum {DATA, CDDA} type; | |
79 | char start[3]; // MSF-format | |
80 | char length[3]; // MSF-format | |
38b8102c | 81 | FILE *handle; // for multi-track images CDDA |
19c03d80 | 82 | int start_offset; // sector offset from start of above file |
ef79bbde P |
83 | }; |
84 | ||
85 | #define MAXTRACKS 100 /* How many tracks can a CD hold? */ | |
86 | ||
87 | static int numtracks = 0; | |
88 | static struct trackinfo ti[MAXTRACKS]; | |
89 | ||
90 | // get a sector from a msf-array | |
91 | static unsigned int msf2sec(char *msf) { | |
92 | return ((msf[0] * 60 + msf[1]) * 75) + msf[2]; | |
93 | } | |
94 | ||
95 | static void sec2msf(unsigned int s, char *msf) { | |
96 | msf[0] = s / 75 / 60; | |
97 | s = s - msf[0] * 75 * 60; | |
98 | msf[1] = s / 75; | |
99 | s = s - msf[1] * 75; | |
100 | msf[2] = s; | |
101 | } | |
102 | ||
103 | // divide a string of xx:yy:zz into m, s, f | |
104 | static void tok2msf(char *time, char *msf) { | |
105 | char *token; | |
106 | ||
107 | token = strtok(time, ":"); | |
108 | if (token) { | |
109 | msf[0] = atoi(token); | |
110 | } | |
111 | else { | |
112 | msf[0] = 0; | |
113 | } | |
114 | ||
115 | token = strtok(NULL, ":"); | |
116 | if (token) { | |
117 | msf[1] = atoi(token); | |
118 | } | |
119 | else { | |
120 | msf[1] = 0; | |
121 | } | |
122 | ||
123 | token = strtok(NULL, ":"); | |
124 | if (token) { | |
125 | msf[2] = atoi(token); | |
126 | } | |
127 | else { | |
128 | msf[2] = 0; | |
129 | } | |
130 | } | |
131 | ||
132 | #ifndef _WIN32 | |
133 | static long GetTickCount(void) { | |
134 | static time_t initial_time = 0; | |
135 | struct timeval now; | |
136 | ||
137 | gettimeofday(&now, NULL); | |
138 | ||
139 | if (initial_time == 0) { | |
140 | initial_time = now.tv_sec; | |
141 | } | |
142 | ||
143 | return (now.tv_sec - initial_time) * 1000L + now.tv_usec / 1000L; | |
144 | } | |
145 | #endif | |
146 | ||
147 | // this thread plays audio data | |
148 | #ifdef _WIN32 | |
149 | static void playthread(void *param) | |
150 | #else | |
151 | static void *playthread(void *param) | |
152 | #endif | |
153 | { | |
154 | long d, t, i, s; | |
155 | unsigned char tmp; | |
156 | ||
157 | t = GetTickCount(); | |
158 | ||
159 | while (playing) { | |
160 | d = t - (long)GetTickCount(); | |
161 | if (d <= 0) { | |
162 | d = 1; | |
163 | } | |
164 | else if (d > CDDA_FRAMETIME) { | |
165 | d = CDDA_FRAMETIME; | |
166 | } | |
167 | #ifdef _WIN32 | |
168 | Sleep(d); | |
169 | #else | |
170 | usleep(d * 1000); | |
171 | #endif | |
d4a1e87d | 172 | // HACK: stop feeding data while emu is paused |
173 | extern int stop; | |
174 | if (stop) { | |
175 | usleep(100000); | |
176 | continue; | |
177 | } | |
ef79bbde P |
178 | |
179 | t = GetTickCount() + CDDA_FRAMETIME; | |
180 | ||
181 | if (subChanMixed) { | |
182 | s = 0; | |
183 | ||
184 | for (i = 0; i < sizeof(sndbuffer) / CD_FRAMESIZE_RAW; i++) { | |
185 | // read one sector | |
186 | d = fread(sndbuffer + CD_FRAMESIZE_RAW * i, 1, CD_FRAMESIZE_RAW, cddaHandle); | |
187 | if (d < CD_FRAMESIZE_RAW) { | |
188 | break; | |
189 | } | |
190 | ||
191 | s += d; | |
192 | ||
19c03d80 | 193 | fread(subbuffer, 1, SUB_FRAMESIZE, cddaHandle); |
194 | if (subChanRaw) DecodeRawSubData(); | |
ef79bbde P |
195 | } |
196 | } | |
197 | else { | |
198 | s = fread(sndbuffer, 1, sizeof(sndbuffer), cddaHandle); | |
19c03d80 | 199 | |
200 | if (subHandle != NULL) { | |
201 | fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); | |
202 | if (subChanRaw) DecodeRawSubData(); | |
203 | ||
204 | // a bit crude but ohwell | |
205 | fseek(subHandle, (sizeof(sndbuffer) / CD_FRAMESIZE_RAW - 1) * SUB_FRAMESIZE, SEEK_CUR); | |
206 | } | |
ef79bbde P |
207 | } |
208 | ||
209 | if (s == 0) { | |
210 | playing = FALSE; | |
ef79bbde P |
211 | initial_offset = 0; |
212 | break; | |
213 | } | |
214 | ||
215 | if (!cdr.Muted && playing) { | |
216 | if (cddaBigEndian) { | |
217 | for (i = 0; i < s / 2; i++) { | |
218 | tmp = sndbuffer[i * 2]; | |
219 | sndbuffer[i * 2] = sndbuffer[i * 2 + 1]; | |
220 | sndbuffer[i * 2 + 1] = tmp; | |
221 | } | |
222 | } | |
223 | ||
224 | SPU_playCDDAchannel((short *)sndbuffer, s); | |
225 | } | |
226 | ||
227 | cddaCurOffset += s; | |
228 | } | |
229 | ||
230 | #ifdef _WIN32 | |
231 | _endthread(); | |
232 | #else | |
233 | pthread_exit(0); | |
234 | return NULL; | |
235 | #endif | |
236 | } | |
237 | ||
238 | // stop the CDDA playback | |
239 | static void stopCDDA() { | |
240 | if (!playing) { | |
241 | return; | |
242 | } | |
243 | ||
244 | playing = FALSE; | |
245 | #ifdef _WIN32 | |
246 | WaitForSingleObject(threadid, INFINITE); | |
247 | #else | |
248 | pthread_join(threadid, NULL); | |
249 | #endif | |
250 | ||
ef79bbde P |
251 | initial_offset = 0; |
252 | } | |
253 | ||
254 | // start the CDDA playback | |
255 | static void startCDDA(unsigned int offset) { | |
256 | if (playing) { | |
257 | if (initial_offset == offset) { | |
258 | return; | |
259 | } | |
260 | stopCDDA(); | |
261 | } | |
262 | ||
ef79bbde P |
263 | initial_offset = offset; |
264 | cddaCurOffset = initial_offset; | |
265 | fseek(cddaHandle, initial_offset, SEEK_SET); | |
266 | ||
267 | playing = TRUE; | |
268 | ||
269 | #ifdef _WIN32 | |
270 | threadid = (HANDLE)_beginthread(playthread, 0, NULL); | |
271 | #else | |
272 | pthread_create(&threadid, NULL, playthread, NULL); | |
273 | #endif | |
274 | } | |
275 | ||
276 | // this function tries to get the .toc file of the given .bin | |
277 | // the necessary data is put into the ti (trackinformation)-array | |
278 | static int parsetoc(const char *isofile) { | |
279 | char tocname[MAXPATHLEN]; | |
280 | FILE *fi; | |
281 | char linebuf[256], dummy[256], name[256]; | |
282 | char *token; | |
283 | char time[20], time2[20]; | |
19c03d80 | 284 | unsigned int t, sector_offs; |
ef79bbde P |
285 | |
286 | numtracks = 0; | |
287 | ||
288 | // copy name of the iso and change extension from .bin to .toc | |
289 | strncpy(tocname, isofile, sizeof(tocname)); | |
290 | tocname[MAXPATHLEN - 1] = '\0'; | |
291 | if (strlen(tocname) >= 4) { | |
292 | strcpy(tocname + strlen(tocname) - 4, ".toc"); | |
293 | } | |
294 | else { | |
295 | return -1; | |
296 | } | |
297 | ||
298 | if ((fi = fopen(tocname, "r")) == NULL) { | |
299 | // try changing extension to .cue (to satisfy some stupid tutorials) | |
300 | strcpy(tocname + strlen(tocname) - 4, ".cue"); | |
301 | if ((fi = fopen(tocname, "r")) == NULL) { | |
302 | // if filename is image.toc.bin, try removing .bin (for Brasero) | |
303 | strcpy(tocname, isofile); | |
304 | t = strlen(tocname); | |
305 | if (t >= 8 && strcmp(tocname + t - 8, ".toc.bin") == 0) { | |
306 | tocname[t - 4] = '\0'; | |
307 | if ((fi = fopen(tocname, "r")) == NULL) { | |
308 | return -1; | |
309 | } | |
310 | } | |
311 | else { | |
312 | return -1; | |
313 | } | |
314 | } | |
315 | } | |
316 | ||
317 | memset(&ti, 0, sizeof(ti)); | |
318 | cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio | |
319 | ||
19c03d80 | 320 | sector_offs = 2 * 75; |
321 | ||
ef79bbde P |
322 | // parse the .toc file |
323 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
324 | // search for tracks | |
325 | strncpy(dummy, linebuf, sizeof(linebuf)); | |
326 | token = strtok(dummy, " "); | |
327 | ||
328 | if (token == NULL) continue; | |
329 | ||
330 | if (!strcmp(token, "TRACK")) { | |
331 | // get type of track | |
332 | token = strtok(NULL, " "); | |
333 | numtracks++; | |
334 | ||
335 | if (!strncmp(token, "MODE2_RAW", 9)) { | |
336 | ti[numtracks].type = DATA; | |
337 | sec2msf(2 * 75, ti[numtracks].start); // assume data track on 0:2:0 | |
338 | ||
339 | // check if this image contains mixed subchannel data | |
340 | token = strtok(NULL, " "); | |
341 | if (token != NULL && !strncmp(token, "RW_RAW", 6)) { | |
342 | subChanMixed = TRUE; | |
343 | subChanRaw = TRUE; | |
344 | } | |
345 | } | |
346 | else if (!strncmp(token, "AUDIO", 5)) { | |
347 | ti[numtracks].type = CDDA; | |
348 | } | |
349 | } | |
350 | else if (!strcmp(token, "DATAFILE")) { | |
351 | if (ti[numtracks].type == CDDA) { | |
352 | sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2); | |
353 | t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0); | |
19c03d80 | 354 | ti[numtracks].start_offset = t; |
355 | t += sector_offs; | |
ef79bbde P |
356 | sec2msf(t, (char *)&ti[numtracks].start); |
357 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
358 | } | |
359 | else { | |
360 | sscanf(linebuf, "DATAFILE \"%[^\"]\" %8s", name, time); | |
361 | tok2msf((char *)&time, (char *)&ti[numtracks].length); | |
362 | } | |
363 | } | |
364 | else if (!strcmp(token, "FILE")) { | |
365 | sscanf(linebuf, "FILE \"%[^\"]\" #%d %8s %8s", name, &t, time, time2); | |
366 | tok2msf((char *)&time, (char *)&ti[numtracks].start); | |
367 | t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0); | |
19c03d80 | 368 | ti[numtracks].start_offset = t; |
369 | t += msf2sec(ti[numtracks].start) + sector_offs; | |
ef79bbde P |
370 | sec2msf(t, (char *)&ti[numtracks].start); |
371 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
372 | } | |
19c03d80 | 373 | else if (!strcmp(token, "ZERO")) { |
374 | sscanf(linebuf, "ZERO AUDIO RW_RAW %8s", time); | |
375 | tok2msf((char *)&time, dummy); | |
376 | sector_offs += msf2sec(dummy); | |
8aa91443 | 377 | if (numtracks > 1) { |
378 | t = ti[numtracks - 1].start_offset; | |
379 | pregapOffset = t + msf2sec(ti[numtracks - 1].length); | |
380 | } | |
19c03d80 | 381 | } |
ef79bbde P |
382 | } |
383 | ||
384 | fclose(fi); | |
385 | ||
386 | return 0; | |
387 | } | |
388 | ||
389 | // this function tries to get the .cue file of the given .bin | |
390 | // the necessary data is put into the ti (trackinformation)-array | |
391 | static int parsecue(const char *isofile) { | |
392 | char cuename[MAXPATHLEN]; | |
38b8102c | 393 | char filepath[MAXPATHLEN]; |
394 | char *incue_fname; | |
ef79bbde P |
395 | FILE *fi; |
396 | char *token; | |
397 | char time[20]; | |
398 | char *tmp; | |
19c03d80 | 399 | char linebuf[256], tmpb[256], dummy[256]; |
38b8102c | 400 | unsigned int incue_max_len; |
19c03d80 | 401 | unsigned int t, file_len, sector_offs; |
ef79bbde P |
402 | |
403 | numtracks = 0; | |
404 | ||
405 | // copy name of the iso and change extension from .bin to .cue | |
406 | strncpy(cuename, isofile, sizeof(cuename)); | |
407 | cuename[MAXPATHLEN - 1] = '\0'; | |
408 | if (strlen(cuename) >= 4) { | |
409 | strcpy(cuename + strlen(cuename) - 4, ".cue"); | |
410 | } | |
411 | else { | |
412 | return -1; | |
413 | } | |
414 | ||
415 | if ((fi = fopen(cuename, "r")) == NULL) { | |
416 | return -1; | |
417 | } | |
418 | ||
419 | // Some stupid tutorials wrongly tell users to use cdrdao to rip a | |
420 | // "bin/cue" image, which is in fact a "bin/toc" image. So let's check | |
421 | // that... | |
422 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
423 | if (!strncmp(linebuf, "CD_ROM_XA", 9)) { | |
424 | // Don't proceed further, as this is actually a .toc file rather | |
425 | // than a .cue file. | |
426 | fclose(fi); | |
427 | return parsetoc(isofile); | |
428 | } | |
429 | fseek(fi, 0, SEEK_SET); | |
430 | } | |
431 | ||
38b8102c | 432 | // build a path for files referenced in .cue |
433 | strncpy(filepath, cuename, sizeof(filepath)); | |
434 | tmp = strrchr(filepath, '/') + 1; | |
435 | if (tmp == NULL) | |
436 | tmp = strrchr(filepath, '\\') + 1; | |
437 | if (tmp == NULL) | |
438 | tmp = filepath; | |
439 | *tmp = 0; | |
440 | filepath[sizeof(filepath) - 1] = 0; | |
441 | incue_fname = tmp; | |
442 | incue_max_len = sizeof(filepath) - (tmp - filepath) - 1; | |
443 | ||
ef79bbde P |
444 | memset(&ti, 0, sizeof(ti)); |
445 | ||
19c03d80 | 446 | file_len = 0; |
447 | sector_offs = 2 * 75; | |
448 | ||
ef79bbde P |
449 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
450 | strncpy(dummy, linebuf, sizeof(linebuf)); | |
451 | token = strtok(dummy, " "); | |
452 | ||
453 | if (token == NULL) { | |
454 | continue; | |
455 | } | |
456 | ||
19c03d80 | 457 | if (!strcmp(token, "TRACK")) { |
ef79bbde P |
458 | numtracks++; |
459 | ||
460 | if (strstr(linebuf, "AUDIO") != NULL) { | |
461 | ti[numtracks].type = CDDA; | |
462 | } | |
463 | else if (strstr(linebuf, "MODE1/2352") != NULL || strstr(linebuf, "MODE2/2352") != NULL) { | |
464 | ti[numtracks].type = DATA; | |
465 | } | |
466 | } | |
467 | else if (!strcmp(token, "INDEX")) { | |
19c03d80 | 468 | sscanf(linebuf, " INDEX %02d %8s", &t, time); |
469 | tok2msf(time, (char *)&ti[numtracks].start); | |
ef79bbde | 470 | |
19c03d80 | 471 | t = msf2sec(ti[numtracks].start); |
472 | ti[numtracks].start_offset = t; | |
473 | t += sector_offs; | |
ef79bbde | 474 | sec2msf(t, ti[numtracks].start); |
19c03d80 | 475 | |
476 | // default track length to file length | |
477 | t = file_len - ti[numtracks].start_offset; | |
478 | sec2msf(t, ti[numtracks].length); | |
479 | ||
480 | if (numtracks > 1 && ti[numtracks].handle == NULL) { | |
481 | // this track uses the same file as the last, | |
482 | // start of this track is last track's end | |
483 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
484 | sec2msf(t, ti[numtracks - 1].length); | |
38b8102c | 485 | } |
8aa91443 | 486 | if (numtracks > 1 && pregapOffset == -1) |
487 | pregapOffset = ti[numtracks].start_offset; | |
19c03d80 | 488 | } |
489 | else if (!strcmp(token, "PREGAP")) { | |
490 | if (sscanf(linebuf, " PREGAP %8s", time) == 1) { | |
491 | tok2msf(time, dummy); | |
492 | sector_offs += msf2sec(dummy); | |
38b8102c | 493 | } |
8aa91443 | 494 | pregapOffset = -1; // mark to fill track start_offset |
19c03d80 | 495 | } |
496 | else if (!strcmp(token, "FILE")) { | |
497 | sscanf(linebuf, " FILE \"%[^\"]\"", tmpb); | |
498 | ||
499 | // absolute path? | |
500 | ti[numtracks + 1].handle = fopen(tmpb, "rb"); | |
501 | if (ti[numtracks + 1].handle == NULL) { | |
502 | // relative to .cue? | |
503 | tmp = strrchr(tmpb, '\\'); | |
504 | if (tmp == NULL) | |
505 | tmp = strrchr(tmpb, '/'); | |
38b8102c | 506 | if (tmp != NULL) |
19c03d80 | 507 | tmp++; |
508 | else | |
509 | tmp = tmpb; | |
510 | strncpy(incue_fname, tmp, incue_max_len); | |
511 | ti[numtracks + 1].handle = fopen(filepath, "rb"); | |
38b8102c | 512 | } |
ef79bbde | 513 | |
19c03d80 | 514 | // update global offset if this is not first file in this .cue |
515 | if (numtracks + 1 > 1) | |
516 | sector_offs += file_len; | |
517 | ||
518 | file_len = 0; | |
38b8102c | 519 | if (ti[numtracks + 1].handle == NULL) { |
19c03d80 | 520 | SysPrintf(_("\ncould not open: %s\n"), filepath); |
521 | continue; | |
38b8102c | 522 | } |
19c03d80 | 523 | fseek(ti[numtracks + 1].handle, 0, SEEK_END); |
524 | file_len = ftell(ti[numtracks + 1].handle) / 2352; | |
525 | ||
526 | if (numtracks == 0 && strlen(isofile) >= 4 && | |
527 | strcmp(isofile + strlen(isofile) - 4, ".cue") == 0) | |
528 | { | |
38b8102c | 529 | // user selected .cue as image file, use it's data track instead |
530 | fclose(cdHandle); | |
531 | cdHandle = fopen(filepath, "rb"); | |
ef79bbde P |
532 | } |
533 | } | |
534 | } | |
535 | ||
536 | fclose(fi); | |
537 | ||
ef79bbde P |
538 | return 0; |
539 | } | |
540 | ||
541 | // this function tries to get the .ccd file of the given .img | |
542 | // the necessary data is put into the ti (trackinformation)-array | |
543 | static int parseccd(const char *isofile) { | |
544 | char ccdname[MAXPATHLEN]; | |
545 | FILE *fi; | |
546 | char linebuf[256]; | |
547 | unsigned int t; | |
548 | ||
549 | numtracks = 0; | |
550 | ||
551 | // copy name of the iso and change extension from .img to .ccd | |
552 | strncpy(ccdname, isofile, sizeof(ccdname)); | |
553 | ccdname[MAXPATHLEN - 1] = '\0'; | |
554 | if (strlen(ccdname) >= 4) { | |
555 | strcpy(ccdname + strlen(ccdname) - 4, ".ccd"); | |
556 | } | |
557 | else { | |
558 | return -1; | |
559 | } | |
560 | ||
561 | if ((fi = fopen(ccdname, "r")) == NULL) { | |
562 | return -1; | |
563 | } | |
564 | ||
565 | memset(&ti, 0, sizeof(ti)); | |
566 | ||
567 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
568 | if (!strncmp(linebuf, "[TRACK", 6)){ | |
569 | numtracks++; | |
570 | } | |
571 | else if (!strncmp(linebuf, "MODE=", 5)) { | |
572 | sscanf(linebuf, "MODE=%d", &t); | |
573 | ti[numtracks].type = ((t == 0) ? CDDA : DATA); | |
574 | } | |
575 | else if (!strncmp(linebuf, "INDEX 1=", 8)) { | |
576 | sscanf(linebuf, "INDEX 1=%d", &t); | |
577 | sec2msf(t + 2 * 75, ti[numtracks].start); | |
19c03d80 | 578 | ti[numtracks].start_offset = t; |
ef79bbde P |
579 | |
580 | // If we've already seen another track, this is its end | |
581 | if (numtracks > 1) { | |
582 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
583 | sec2msf(t, ti[numtracks - 1].length); | |
584 | } | |
585 | } | |
586 | } | |
587 | ||
588 | fclose(fi); | |
589 | ||
590 | // Fill out the last track's end based on size | |
591 | if (numtracks >= 1) { | |
592 | fseek(cdHandle, 0, SEEK_END); | |
593 | t = ftell(cdHandle) / 2352 - msf2sec(ti[numtracks].start) + 2 * 75; | |
594 | sec2msf(t, ti[numtracks].length); | |
595 | } | |
596 | ||
597 | return 0; | |
598 | } | |
599 | ||
600 | // this function tries to get the .mds file of the given .mdf | |
601 | // the necessary data is put into the ti (trackinformation)-array | |
602 | static int parsemds(const char *isofile) { | |
603 | char mdsname[MAXPATHLEN]; | |
604 | FILE *fi; | |
605 | unsigned int offset, extra_offset, l, i; | |
606 | unsigned short s; | |
607 | ||
608 | numtracks = 0; | |
609 | ||
610 | // copy name of the iso and change extension from .mdf to .mds | |
611 | strncpy(mdsname, isofile, sizeof(mdsname)); | |
612 | mdsname[MAXPATHLEN - 1] = '\0'; | |
613 | if (strlen(mdsname) >= 4) { | |
614 | strcpy(mdsname + strlen(mdsname) - 4, ".mds"); | |
615 | } | |
616 | else { | |
617 | return -1; | |
618 | } | |
619 | ||
620 | if ((fi = fopen(mdsname, "rb")) == NULL) { | |
621 | return -1; | |
622 | } | |
623 | ||
624 | memset(&ti, 0, sizeof(ti)); | |
625 | ||
626 | // check if it's a valid mds file | |
627 | fread(&i, 1, sizeof(unsigned int), fi); | |
628 | i = SWAP32(i); | |
629 | if (i != 0x4944454D) { | |
630 | // not an valid mds file | |
631 | fclose(fi); | |
632 | return -1; | |
633 | } | |
634 | ||
635 | // get offset to session block | |
636 | fseek(fi, 0x50, SEEK_SET); | |
637 | fread(&offset, 1, sizeof(unsigned int), fi); | |
638 | offset = SWAP32(offset); | |
639 | ||
640 | // get total number of tracks | |
641 | offset += 14; | |
642 | fseek(fi, offset, SEEK_SET); | |
643 | fread(&s, 1, sizeof(unsigned short), fi); | |
644 | s = SWAP16(s); | |
645 | numtracks = s; | |
646 | ||
647 | // get offset to track blocks | |
648 | fseek(fi, 4, SEEK_CUR); | |
649 | fread(&offset, 1, sizeof(unsigned int), fi); | |
650 | offset = SWAP32(offset); | |
651 | ||
652 | // skip lead-in data | |
653 | while (1) { | |
654 | fseek(fi, offset + 4, SEEK_SET); | |
655 | if (fgetc(fi) < 0xA0) { | |
656 | break; | |
657 | } | |
658 | offset += 0x50; | |
659 | } | |
660 | ||
661 | // check if the image contains mixed subchannel data | |
662 | fseek(fi, offset + 1, SEEK_SET); | |
663 | subChanMixed = (fgetc(fi) ? TRUE : FALSE); | |
664 | ||
665 | // read track data | |
666 | for (i = 1; i <= numtracks; i++) { | |
667 | fseek(fi, offset, SEEK_SET); | |
668 | ||
669 | // get the track type | |
670 | ti[i].type = ((fgetc(fi) == 0xA9) ? CDDA : DATA); | |
671 | fseek(fi, 8, SEEK_CUR); | |
672 | ||
673 | // get the track starting point | |
674 | ti[i].start[0] = fgetc(fi); | |
675 | ti[i].start[1] = fgetc(fi); | |
676 | ti[i].start[2] = fgetc(fi); | |
677 | ||
ef79bbde P |
678 | fread(&extra_offset, 1, sizeof(unsigned int), fi); |
679 | extra_offset = SWAP32(extra_offset); | |
680 | ||
19c03d80 | 681 | // get track start offset (in .mdf) |
682 | fseek(fi, offset + 0x28, SEEK_SET); | |
683 | fread(&l, 1, sizeof(unsigned int), fi); | |
684 | l = SWAP32(l); | |
685 | ti[i].start_offset = l / CD_FRAMESIZE_RAW; | |
686 | ||
8aa91443 | 687 | // get pregap |
688 | fseek(fi, extra_offset, SEEK_SET); | |
689 | fread(&l, 1, sizeof(unsigned int), fi); | |
690 | l = SWAP32(l); | |
691 | if (l != 0 && i > 1) | |
692 | pregapOffset = ti[i].start_offset; | |
693 | ||
694 | // get the track length | |
695 | fread(&l, 1, sizeof(unsigned int), fi); | |
696 | l = SWAP32(l); | |
697 | sec2msf(l, ti[i].length); | |
698 | ||
ef79bbde P |
699 | offset += 0x50; |
700 | } | |
701 | ||
702 | fclose(fi); | |
703 | return 0; | |
704 | } | |
705 | ||
706 | // this function tries to get the .sub file of the given .img | |
707 | static int opensubfile(const char *isoname) { | |
708 | char subname[MAXPATHLEN]; | |
709 | ||
710 | // copy name of the iso and change extension from .img to .sub | |
711 | strncpy(subname, isoname, sizeof(subname)); | |
712 | subname[MAXPATHLEN - 1] = '\0'; | |
713 | if (strlen(subname) >= 4) { | |
714 | strcpy(subname + strlen(subname) - 4, ".sub"); | |
715 | } | |
716 | else { | |
717 | return -1; | |
718 | } | |
719 | ||
720 | subHandle = fopen(subname, "rb"); | |
721 | if (subHandle == NULL) { | |
722 | return -1; | |
723 | } | |
724 | ||
725 | return 0; | |
726 | } | |
727 | ||
ae4e7dc9 | 728 | static int opensbifile(const char *isoname) { |
729 | char sbiname[MAXPATHLEN]; | |
730 | int s; | |
731 | ||
732 | strncpy(sbiname, isoname, sizeof(sbiname)); | |
733 | sbiname[MAXPATHLEN - 1] = '\0'; | |
734 | if (strlen(sbiname) >= 4) { | |
735 | strcpy(sbiname + strlen(sbiname) - 4, ".sbi"); | |
736 | } | |
737 | else { | |
738 | return -1; | |
739 | } | |
740 | ||
741 | fseek(cdHandle, 0, SEEK_END); | |
742 | s = ftell(cdHandle) / 2352; | |
743 | ||
744 | return LoadSBI(sbiname, s); | |
745 | } | |
746 | ||
ef79bbde P |
747 | static void PrintTracks(void) { |
748 | int i; | |
749 | ||
750 | for (i = 1; i <= numtracks; i++) { | |
751 | SysPrintf(_("Track %.2d (%s) - Start %.2d:%.2d:%.2d, Length %.2d:%.2d:%.2d\n"), | |
752 | i, (ti[i].type == DATA ? "DATA" : "AUDIO"), | |
753 | ti[i].start[0], ti[i].start[1], ti[i].start[2], | |
754 | ti[i].length[0], ti[i].length[1], ti[i].length[2]); | |
755 | } | |
756 | } | |
757 | ||
758 | // This function is invoked by the front-end when opening an ISO | |
759 | // file for playback | |
760 | static long CALLBACK ISOopen(void) { | |
761 | if (cdHandle != NULL) { | |
762 | return 0; // it's already open | |
763 | } | |
764 | ||
765 | cdHandle = fopen(GetIsoFile(), "rb"); | |
766 | if (cdHandle == NULL) { | |
767 | return -1; | |
768 | } | |
769 | ||
770 | SysPrintf(_("Loaded CD Image: %s"), GetIsoFile()); | |
771 | ||
772 | cddaBigEndian = FALSE; | |
773 | subChanMixed = FALSE; | |
774 | subChanRaw = FALSE; | |
8aa91443 | 775 | subChanMixed = FALSE; |
776 | pregapOffset = 0; | |
ef79bbde P |
777 | |
778 | if (parsecue(GetIsoFile()) == 0) { | |
779 | SysPrintf("[+cue]"); | |
780 | } | |
781 | else if (parsetoc(GetIsoFile()) == 0) { | |
782 | SysPrintf("[+toc]"); | |
783 | } | |
784 | else if (parseccd(GetIsoFile()) == 0) { | |
785 | SysPrintf("[+ccd]"); | |
786 | } | |
787 | else if (parsemds(GetIsoFile()) == 0) { | |
788 | SysPrintf("[+mds]"); | |
789 | } | |
790 | ||
791 | if (!subChanMixed && opensubfile(GetIsoFile()) == 0) { | |
792 | SysPrintf("[+sub]"); | |
793 | } | |
ae4e7dc9 | 794 | if (opensbifile(GetIsoFile()) == 0) { |
795 | SysPrintf("[+sbi]"); | |
796 | } | |
ef79bbde P |
797 | |
798 | SysPrintf(".\n"); | |
799 | ||
800 | PrintTracks(); | |
801 | ||
38b8102c | 802 | // make sure we have another handle open for cdda |
803 | if (numtracks > 1 && ti[1].handle == NULL) { | |
804 | ti[1].handle = fopen(GetIsoFile(), "rb"); | |
805 | } | |
858ad511 | 806 | cddaCurOffset = cddaStartOffset = 0; |
38b8102c | 807 | |
ef79bbde P |
808 | return 0; |
809 | } | |
810 | ||
811 | static long CALLBACK ISOclose(void) { | |
38b8102c | 812 | int i; |
813 | ||
ef79bbde P |
814 | if (cdHandle != NULL) { |
815 | fclose(cdHandle); | |
816 | cdHandle = NULL; | |
817 | } | |
818 | if (subHandle != NULL) { | |
819 | fclose(subHandle); | |
820 | subHandle = NULL; | |
821 | } | |
822 | stopCDDA(); | |
38b8102c | 823 | cddaHandle = NULL; |
824 | ||
825 | for (i = 1; i <= numtracks; i++) { | |
826 | if (ti[i].handle != NULL) { | |
827 | fclose(ti[i].handle); | |
828 | ti[i].handle = NULL; | |
829 | } | |
830 | } | |
831 | numtracks = 0; | |
ae4e7dc9 | 832 | UnloadSBI(); |
38b8102c | 833 | |
834 | return 0; | |
835 | } | |
836 | ||
837 | static long CALLBACK ISOinit(void) { | |
838 | assert(cdHandle == NULL); | |
839 | assert(subHandle == NULL); | |
840 | ||
841 | return 0; // do nothing | |
842 | } | |
843 | ||
844 | static long CALLBACK ISOshutdown(void) { | |
845 | ISOclose(); | |
ef79bbde P |
846 | return 0; |
847 | } | |
848 | ||
849 | // return Starting and Ending Track | |
850 | // buffer: | |
851 | // byte 0 - start track | |
852 | // byte 1 - end track | |
853 | static long CALLBACK ISOgetTN(unsigned char *buffer) { | |
854 | buffer[0] = 1; | |
855 | ||
856 | if (numtracks > 0) { | |
857 | buffer[1] = numtracks; | |
858 | } | |
859 | else { | |
860 | buffer[1] = 1; | |
861 | } | |
862 | ||
863 | return 0; | |
864 | } | |
865 | ||
866 | // return Track Time | |
867 | // buffer: | |
868 | // byte 0 - frame | |
869 | // byte 1 - second | |
870 | // byte 2 - minute | |
871 | static long CALLBACK ISOgetTD(unsigned char track, unsigned char *buffer) { | |
858ad511 | 872 | if (track == 0) { |
873 | // CD length according pcsxr-svn (done a bit different here) | |
874 | unsigned int sect; | |
875 | unsigned char time[3]; | |
876 | sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length); | |
ab948f7e | 877 | sec2msf(sect, (char *)time); |
858ad511 | 878 | buffer[2] = time[0]; |
879 | buffer[1] = time[1]; | |
880 | buffer[0] = time[2]; | |
881 | } | |
882 | else if (numtracks > 0 && track <= numtracks) { | |
ef79bbde P |
883 | buffer[2] = ti[track].start[0]; |
884 | buffer[1] = ti[track].start[1]; | |
885 | buffer[0] = ti[track].start[2]; | |
886 | } | |
887 | else { | |
888 | buffer[2] = 0; | |
889 | buffer[1] = 2; | |
890 | buffer[0] = 0; | |
891 | } | |
892 | ||
893 | return 0; | |
894 | } | |
895 | ||
896 | // decode 'raw' subchannel data ripped by cdrdao | |
897 | static void DecodeRawSubData(void) { | |
898 | unsigned char subQData[12]; | |
899 | int i; | |
900 | ||
901 | memset(subQData, 0, sizeof(subQData)); | |
902 | ||
903 | for (i = 0; i < 8 * 12; i++) { | |
904 | if (subbuffer[i] & (1 << 6)) { // only subchannel Q is needed | |
905 | subQData[i >> 3] |= (1 << (7 - (i & 7))); | |
906 | } | |
907 | } | |
908 | ||
909 | memcpy(&subbuffer[12], subQData, 12); | |
910 | } | |
911 | ||
912 | // read track | |
913 | // time: byte 0 - minute; byte 1 - second; byte 2 - frame | |
914 | // uses bcd format | |
915 | static long CALLBACK ISOreadTrack(unsigned char *time) { | |
19c03d80 | 916 | int sector = MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])); |
917 | ||
ef79bbde P |
918 | if (cdHandle == NULL) { |
919 | return -1; | |
920 | } | |
921 | ||
8aa91443 | 922 | if (pregapOffset) { |
923 | subChanMissing = FALSE; | |
924 | if (sector >= pregapOffset) { | |
925 | sector -= 2 * 75; | |
926 | if (sector < pregapOffset) | |
927 | subChanMissing = TRUE; | |
928 | } | |
929 | } | |
930 | ||
ef79bbde | 931 | if (subChanMixed) { |
19c03d80 | 932 | fseek(cdHandle, sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + 12, SEEK_SET); |
ef79bbde P |
933 | fread(cdbuffer, 1, DATA_SIZE, cdHandle); |
934 | fread(subbuffer, 1, SUB_FRAMESIZE, cdHandle); | |
935 | ||
936 | if (subChanRaw) DecodeRawSubData(); | |
937 | } | |
938 | else { | |
19c03d80 | 939 | fseek(cdHandle, sector * CD_FRAMESIZE_RAW + 12, SEEK_SET); |
ef79bbde P |
940 | fread(cdbuffer, 1, DATA_SIZE, cdHandle); |
941 | ||
942 | if (subHandle != NULL) { | |
19c03d80 | 943 | fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET); |
ef79bbde P |
944 | fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); |
945 | ||
946 | if (subChanRaw) DecodeRawSubData(); | |
947 | } | |
948 | } | |
949 | ||
950 | return 0; | |
951 | } | |
952 | ||
953 | // return readed track | |
954 | static unsigned char * CALLBACK ISOgetBuffer(void) { | |
955 | return cdbuffer; | |
956 | } | |
957 | ||
958 | // plays cdda audio | |
959 | // sector: byte 0 - minute; byte 1 - second; byte 2 - frame | |
960 | // does NOT uses bcd format | |
961 | static long CALLBACK ISOplay(unsigned char *time) { | |
19c03d80 | 962 | unsigned int i, abs_sect; |
963 | int file_sect; | |
38b8102c | 964 | |
7b8da7ab | 965 | if (numtracks <= 1) |
966 | return 0; | |
967 | ||
38b8102c | 968 | // find the track |
19c03d80 | 969 | abs_sect = msf2sec((char *)time); |
38b8102c | 970 | for (i = numtracks; i > 1; i--) |
19c03d80 | 971 | if (msf2sec(ti[i].start) <= abs_sect + 2 * 75) |
38b8102c | 972 | break; |
973 | ||
19c03d80 | 974 | file_sect = ti[i].start_offset + (abs_sect - msf2sec(ti[i].start)); |
975 | if (file_sect < 0) | |
976 | file_sect = 0; | |
977 | ||
38b8102c | 978 | // find the file that contains this track |
979 | for (; i > 1; i--) | |
980 | if (ti[i].handle != NULL) | |
981 | break; | |
982 | ||
19c03d80 | 983 | cddaStartOffset = abs_sect - file_sect; |
38b8102c | 984 | cddaHandle = ti[i].handle; |
985 | ||
8aa91443 | 986 | if (pregapOffset && (unsigned int)(pregapOffset - file_sect) < 2 * 75) { |
987 | // get out of the missing pregap to avoid noise | |
988 | file_sect = pregapOffset; | |
989 | } | |
990 | ||
ef79bbde P |
991 | if (SPU_playCDDAchannel != NULL) { |
992 | if (subChanMixed) { | |
19c03d80 | 993 | startCDDA(file_sect * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE)); |
ef79bbde P |
994 | } |
995 | else { | |
19c03d80 | 996 | startCDDA(file_sect * CD_FRAMESIZE_RAW); |
997 | if (subHandle != NULL) | |
998 | fseek(subHandle, file_sect * SUB_FRAMESIZE, SEEK_SET); | |
ef79bbde P |
999 | } |
1000 | } | |
1001 | return 0; | |
1002 | } | |
1003 | ||
1004 | // stops cdda audio | |
1005 | static long CALLBACK ISOstop(void) { | |
1006 | stopCDDA(); | |
1007 | return 0; | |
1008 | } | |
1009 | ||
1010 | // gets subchannel data | |
1011 | static unsigned char* CALLBACK ISOgetBufferSub(void) { | |
8aa91443 | 1012 | if ((subHandle != NULL || subChanMixed) && !subChanMissing) { |
ef79bbde P |
1013 | return subbuffer; |
1014 | } | |
1015 | ||
1016 | return NULL; | |
1017 | } | |
1018 | ||
1019 | static long CALLBACK ISOgetStatus(struct CdrStat *stat) { | |
1020 | int sec; | |
1021 | ||
1022 | CDR__getStatus(stat); | |
1023 | ||
1024 | if (playing) { | |
1025 | stat->Type = 0x02; | |
1026 | stat->Status |= 0x80; | |
ef79bbde P |
1027 | } |
1028 | else { | |
1029 | stat->Type = 0x01; | |
1030 | } | |
1031 | ||
858ad511 | 1032 | sec = (cddaStartOffset + cddaCurOffset) / CD_FRAMESIZE_RAW; |
1033 | sec2msf(sec, (char *)stat->Time); | |
1034 | ||
ef79bbde P |
1035 | return 0; |
1036 | } | |
1037 | ||
1038 | void cdrIsoInit(void) { | |
1039 | CDR_init = ISOinit; | |
1040 | CDR_shutdown = ISOshutdown; | |
1041 | CDR_open = ISOopen; | |
1042 | CDR_close = ISOclose; | |
1043 | CDR_getTN = ISOgetTN; | |
1044 | CDR_getTD = ISOgetTD; | |
1045 | CDR_readTrack = ISOreadTrack; | |
1046 | CDR_getBuffer = ISOgetBuffer; | |
1047 | CDR_play = ISOplay; | |
1048 | CDR_stop = ISOstop; | |
1049 | CDR_getBufferSub = ISOgetBufferSub; | |
1050 | CDR_getStatus = ISOgetStatus; | |
1051 | ||
1052 | CDR_getDriveLetter = CDR__getDriveLetter; | |
1053 | CDR_configure = CDR__configure; | |
1054 | CDR_test = CDR__test; | |
1055 | CDR_about = CDR__about; | |
1056 | CDR_setfilename = CDR__setfilename; | |
1057 | ||
1058 | numtracks = 0; | |
1059 | } | |
1060 | ||
1061 | int cdrIsoActive(void) { | |
1062 | return (cdHandle != NULL); | |
1063 | } |