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ef79bbde P |
1 | /*************************************************************************** |
2 | * Copyright (C) 2007 PCSX-df Team * | |
3 | * Copyright (C) 2009 Wei Mingzhi * | |
77160d47 | 4 | * Copyright (C) 2012 notaz * |
ef79bbde P |
5 | * * |
6 | * This program is free software; you can redistribute it and/or modify * | |
7 | * it under the terms of the GNU General Public License as published by * | |
8 | * the Free Software Foundation; either version 2 of the License, or * | |
9 | * (at your option) any later version. * | |
10 | * * | |
11 | * This program is distributed in the hope that it will be useful, * | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | |
14 | * GNU General Public License for more details. * | |
15 | * * | |
16 | * You should have received a copy of the GNU General Public License * | |
17 | * along with this program; if not, write to the * | |
18 | * Free Software Foundation, Inc., * | |
deebc67f | 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * |
ef79bbde P |
20 | ***************************************************************************/ |
21 | ||
22 | #include "psxcommon.h" | |
23 | #include "plugins.h" | |
24 | #include "cdrom.h" | |
25 | #include "cdriso.h" | |
ae4e7dc9 | 26 | #include "ppf.h" |
ef79bbde P |
27 | |
28 | #ifdef _WIN32 | |
deebc67f | 29 | #define strcasecmp _stricmp |
34ee3480 | 30 | #else |
31 | #include <sys/types.h> | |
32 | #include <sys/stat.h> | |
33 | #include <unistd.h> | |
34 | #if P_HAVE_PTHREAD | |
ef79bbde P |
35 | #include <pthread.h> |
36 | #include <sys/time.h> | |
34ee3480 | 37 | #endif |
ef79bbde | 38 | #endif |
2e058581 | 39 | #include <errno.h> |
9a92bffb | 40 | #include <zlib.h> |
ef79bbde | 41 | |
00f0670c | 42 | #ifdef HAVE_CHD |
68e7d409 | 43 | #include "libchdr/chd.h" |
00f0670c | 44 | #endif |
45 | ||
cc376814 | 46 | #define OFF_T_MSB ((off_t)1 << (sizeof(off_t) * 8 - 1)) |
47 | ||
0c2871a7 | 48 | unsigned int cdrIsoMultidiskCount; |
49 | unsigned int cdrIsoMultidiskSelect; | |
50 | ||
ef79bbde P |
51 | static FILE *cdHandle = NULL; |
52 | static FILE *cddaHandle = NULL; | |
53 | static FILE *subHandle = NULL; | |
54 | ||
55 | static boolean subChanMixed = FALSE; | |
56 | static boolean subChanRaw = FALSE; | |
57 | ||
deebc67f | 58 | static boolean multifile = FALSE; |
59 | ||
81abe4d5 | 60 | static unsigned char cdbuffer[CD_FRAMESIZE_RAW]; |
ef79bbde P |
61 | static unsigned char subbuffer[SUB_FRAMESIZE]; |
62 | ||
ef79bbde | 63 | static boolean cddaBigEndian = FALSE; |
8aa91443 | 64 | /* Frame offset into CD image where pregap data would be found if it was there. |
65 | * If a game seeks there we must *not* return subchannel data since it's | |
66 | * not in the CD image, so that cdrom code can fake subchannel data instead. | |
67 | * XXX: there could be multiple pregaps but PSX dumps only have one? */ | |
68 | static unsigned int pregapOffset; | |
ef79bbde | 69 | |
9a92bffb | 70 | // compressed image stuff |
71 | static struct { | |
72 | unsigned char buff_raw[16][CD_FRAMESIZE_RAW]; | |
73 | unsigned char buff_compressed[CD_FRAMESIZE_RAW * 16 + 100]; | |
cc376814 | 74 | off_t *index_table; |
9a92bffb | 75 | unsigned int index_len; |
0877957a | 76 | unsigned int block_shift; |
9a92bffb | 77 | unsigned int current_block; |
78 | unsigned int sector_in_blk; | |
79 | } *compr_img; | |
80 | ||
00f0670c | 81 | #ifdef HAVE_CHD |
0e178648 | 82 | static struct { |
9afc3b57 | 83 | unsigned char *buffer; |
00f0670c | 84 | chd_file* chd; |
85 | const chd_header* header; | |
86 | unsigned int sectors_per_hunk; | |
9afc3b57 | 87 | unsigned int current_hunk[2]; |
88 | unsigned int current_buffer; | |
00f0670c | 89 | unsigned int sector_in_hunk; |
0e178648 | 90 | } *chd_img; |
34ee3480 | 91 | #else |
92 | #define chd_img 0 | |
00f0670c | 93 | #endif |
94 | ||
752c1c85 | 95 | static int (*cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector); |
96 | static int (*cdimg_read_sub_func)(FILE *f, int sector); | |
9a92bffb | 97 | |
ef79bbde P |
98 | char* CALLBACK CDR__getDriveLetter(void); |
99 | long CALLBACK CDR__configure(void); | |
100 | long CALLBACK CDR__test(void); | |
101 | void CALLBACK CDR__about(void); | |
102 | long CALLBACK CDR__setfilename(char *filename); | |
ef79bbde | 103 | |
19c03d80 | 104 | static void DecodeRawSubData(void); |
105 | ||
ef79bbde | 106 | struct trackinfo { |
deebc67f | 107 | enum {DATA=1, CDDA} type; |
ef79bbde P |
108 | char start[3]; // MSF-format |
109 | char length[3]; // MSF-format | |
38b8102c | 110 | FILE *handle; // for multi-track images CDDA |
cbd88286 | 111 | unsigned int start_offset; // byte offset from start of above file (chd: sector offset) |
ef79bbde P |
112 | }; |
113 | ||
114 | #define MAXTRACKS 100 /* How many tracks can a CD hold? */ | |
115 | ||
116 | static int numtracks = 0; | |
117 | static struct trackinfo ti[MAXTRACKS]; | |
118 | ||
119 | // get a sector from a msf-array | |
120 | static unsigned int msf2sec(char *msf) { | |
121 | return ((msf[0] * 60 + msf[1]) * 75) + msf[2]; | |
122 | } | |
123 | ||
124 | static void sec2msf(unsigned int s, char *msf) { | |
125 | msf[0] = s / 75 / 60; | |
126 | s = s - msf[0] * 75 * 60; | |
127 | msf[1] = s / 75; | |
128 | s = s - msf[1] * 75; | |
129 | msf[2] = s; | |
130 | } | |
131 | ||
132 | // divide a string of xx:yy:zz into m, s, f | |
133 | static void tok2msf(char *time, char *msf) { | |
134 | char *token; | |
135 | ||
136 | token = strtok(time, ":"); | |
137 | if (token) { | |
138 | msf[0] = atoi(token); | |
139 | } | |
140 | else { | |
141 | msf[0] = 0; | |
142 | } | |
143 | ||
144 | token = strtok(NULL, ":"); | |
145 | if (token) { | |
146 | msf[1] = atoi(token); | |
147 | } | |
148 | else { | |
149 | msf[1] = 0; | |
150 | } | |
151 | ||
152 | token = strtok(NULL, ":"); | |
153 | if (token) { | |
154 | msf[2] = atoi(token); | |
155 | } | |
156 | else { | |
157 | msf[2] = 0; | |
158 | } | |
159 | } | |
160 | ||
34ee3480 | 161 | static off_t get_size(FILE *f) |
162 | { | |
163 | off_t old, size; | |
164 | #if !defined(USE_LIBRETRO_VFS) | |
165 | struct stat st; | |
166 | if (fstat(fileno(f), &st) == 0) | |
167 | return st.st_size; | |
168 | #endif | |
169 | old = ftello(f); | |
170 | fseeko(f, 0, SEEK_END); | |
171 | size = ftello(f); | |
172 | fseeko(f, old, SEEK_SET); | |
173 | return size; | |
174 | } | |
175 | ||
ef79bbde P |
176 | // this function tries to get the .toc file of the given .bin |
177 | // the necessary data is put into the ti (trackinformation)-array | |
178 | static int parsetoc(const char *isofile) { | |
179 | char tocname[MAXPATHLEN]; | |
180 | FILE *fi; | |
e999be41 | 181 | char linebuf[256], tmp[256], name[256]; |
ef79bbde P |
182 | char *token; |
183 | char time[20], time2[20]; | |
e999be41 | 184 | unsigned int t, sector_offs, sector_size; |
185 | unsigned int current_zero_gap = 0; | |
ef79bbde P |
186 | |
187 | numtracks = 0; | |
188 | ||
189 | // copy name of the iso and change extension from .bin to .toc | |
190 | strncpy(tocname, isofile, sizeof(tocname)); | |
191 | tocname[MAXPATHLEN - 1] = '\0'; | |
192 | if (strlen(tocname) >= 4) { | |
193 | strcpy(tocname + strlen(tocname) - 4, ".toc"); | |
194 | } | |
195 | else { | |
196 | return -1; | |
197 | } | |
198 | ||
199 | if ((fi = fopen(tocname, "r")) == NULL) { | |
200 | // try changing extension to .cue (to satisfy some stupid tutorials) | |
201 | strcpy(tocname + strlen(tocname) - 4, ".cue"); | |
202 | if ((fi = fopen(tocname, "r")) == NULL) { | |
203 | // if filename is image.toc.bin, try removing .bin (for Brasero) | |
204 | strcpy(tocname, isofile); | |
205 | t = strlen(tocname); | |
206 | if (t >= 8 && strcmp(tocname + t - 8, ".toc.bin") == 0) { | |
207 | tocname[t - 4] = '\0'; | |
208 | if ((fi = fopen(tocname, "r")) == NULL) { | |
209 | return -1; | |
210 | } | |
211 | } | |
212 | else { | |
213 | return -1; | |
214 | } | |
215 | } | |
92f43ab0 | 216 | // check if it's really a TOC named as a .cue |
0e178648 | 217 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
4295c491 | 218 | token = strtok(linebuf, " "); |
2f59faba | 219 | if (token && strncmp(token, "CD", 2) != 0) { |
220 | // && strcmp(token, "CATALOG") != 0) - valid for a real .cue | |
92f43ab0 | 221 | fclose(fi); |
222 | return -1; | |
223 | } | |
0e178648 | 224 | } |
92f43ab0 | 225 | fseek(fi, 0, SEEK_SET); |
ef79bbde P |
226 | } |
227 | ||
228 | memset(&ti, 0, sizeof(ti)); | |
229 | cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio | |
230 | ||
e999be41 | 231 | sector_size = CD_FRAMESIZE_RAW; |
19c03d80 | 232 | sector_offs = 2 * 75; |
233 | ||
ef79bbde P |
234 | // parse the .toc file |
235 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
236 | // search for tracks | |
e999be41 | 237 | strncpy(tmp, linebuf, sizeof(linebuf)); |
238 | token = strtok(tmp, " "); | |
ef79bbde P |
239 | |
240 | if (token == NULL) continue; | |
241 | ||
242 | if (!strcmp(token, "TRACK")) { | |
e999be41 | 243 | sector_offs += current_zero_gap; |
244 | current_zero_gap = 0; | |
245 | ||
ef79bbde P |
246 | // get type of track |
247 | token = strtok(NULL, " "); | |
248 | numtracks++; | |
249 | ||
250 | if (!strncmp(token, "MODE2_RAW", 9)) { | |
251 | ti[numtracks].type = DATA; | |
252 | sec2msf(2 * 75, ti[numtracks].start); // assume data track on 0:2:0 | |
253 | ||
254 | // check if this image contains mixed subchannel data | |
255 | token = strtok(NULL, " "); | |
e999be41 | 256 | if (token != NULL && !strncmp(token, "RW", 2)) { |
257 | sector_size = CD_FRAMESIZE_RAW + SUB_FRAMESIZE; | |
ef79bbde | 258 | subChanMixed = TRUE; |
e999be41 | 259 | if (!strncmp(token, "RW_RAW", 6)) |
260 | subChanRaw = TRUE; | |
ef79bbde P |
261 | } |
262 | } | |
263 | else if (!strncmp(token, "AUDIO", 5)) { | |
264 | ti[numtracks].type = CDDA; | |
265 | } | |
266 | } | |
267 | else if (!strcmp(token, "DATAFILE")) { | |
268 | if (ti[numtracks].type == CDDA) { | |
269 | sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2); | |
19c03d80 | 270 | ti[numtracks].start_offset = t; |
e999be41 | 271 | t = t / sector_size + sector_offs; |
ef79bbde P |
272 | sec2msf(t, (char *)&ti[numtracks].start); |
273 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
274 | } | |
275 | else { | |
276 | sscanf(linebuf, "DATAFILE \"%[^\"]\" %8s", name, time); | |
277 | tok2msf((char *)&time, (char *)&ti[numtracks].length); | |
278 | } | |
279 | } | |
280 | else if (!strcmp(token, "FILE")) { | |
281 | sscanf(linebuf, "FILE \"%[^\"]\" #%d %8s %8s", name, &t, time, time2); | |
282 | tok2msf((char *)&time, (char *)&ti[numtracks].start); | |
e999be41 | 283 | t += msf2sec(ti[numtracks].start) * sector_size; |
19c03d80 | 284 | ti[numtracks].start_offset = t; |
e999be41 | 285 | t = t / sector_size + sector_offs; |
ef79bbde P |
286 | sec2msf(t, (char *)&ti[numtracks].start); |
287 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
288 | } | |
e999be41 | 289 | else if (!strcmp(token, "ZERO") || !strcmp(token, "SILENCE")) { |
290 | // skip unneeded optional fields | |
291 | while (token != NULL) { | |
292 | token = strtok(NULL, " "); | |
293 | if (strchr(token, ':') != NULL) | |
294 | break; | |
295 | } | |
296 | if (token != NULL) { | |
297 | tok2msf(token, tmp); | |
298 | current_zero_gap = msf2sec(tmp); | |
299 | } | |
8aa91443 | 300 | if (numtracks > 1) { |
301 | t = ti[numtracks - 1].start_offset; | |
e999be41 | 302 | t /= sector_size; |
8aa91443 | 303 | pregapOffset = t + msf2sec(ti[numtracks - 1].length); |
304 | } | |
19c03d80 | 305 | } |
e999be41 | 306 | else if (!strcmp(token, "START")) { |
307 | token = strtok(NULL, " "); | |
308 | if (token != NULL && strchr(token, ':')) { | |
309 | tok2msf(token, tmp); | |
310 | t = msf2sec(tmp); | |
311 | ti[numtracks].start_offset += (t - current_zero_gap) * sector_size; | |
312 | t = msf2sec(ti[numtracks].start) + t; | |
313 | sec2msf(t, (char *)&ti[numtracks].start); | |
314 | } | |
315 | } | |
ef79bbde P |
316 | } |
317 | ||
318 | fclose(fi); | |
319 | ||
320 | return 0; | |
321 | } | |
322 | ||
323 | // this function tries to get the .cue file of the given .bin | |
324 | // the necessary data is put into the ti (trackinformation)-array | |
325 | static int parsecue(const char *isofile) { | |
326 | char cuename[MAXPATHLEN]; | |
38b8102c | 327 | char filepath[MAXPATHLEN]; |
328 | char *incue_fname; | |
ef79bbde | 329 | FILE *fi; |
34ee3480 | 330 | FILE *ftmp = NULL; |
ef79bbde P |
331 | char *token; |
332 | char time[20]; | |
333 | char *tmp; | |
19c03d80 | 334 | char linebuf[256], tmpb[256], dummy[256]; |
38b8102c | 335 | unsigned int incue_max_len; |
77160d47 | 336 | unsigned int t, file_len, mode, sector_offs; |
337 | unsigned int sector_size = 2352; | |
ef79bbde P |
338 | |
339 | numtracks = 0; | |
340 | ||
341 | // copy name of the iso and change extension from .bin to .cue | |
342 | strncpy(cuename, isofile, sizeof(cuename)); | |
343 | cuename[MAXPATHLEN - 1] = '\0'; | |
34ee3480 | 344 | if (strlen(cuename) < 4) |
345 | return -1; | |
346 | if (strcasecmp(cuename + strlen(cuename) - 4, ".cue") == 0) { | |
347 | // it's already open as cdHandle | |
348 | fi = cdHandle; | |
349 | } | |
350 | else { | |
0e178648 | 351 | // If 'isofile' is a '.cd<X>' file, use it as a .cue file |
352 | // and don't try to search the additional .cue file | |
353 | if (strncasecmp(cuename + strlen(cuename) - 4, ".cd", 3) != 0 ) | |
34ee3480 | 354 | strcpy(cuename + strlen(cuename) - 4, ".cue"); |
ef79bbde | 355 | |
34ee3480 | 356 | if ((ftmp = fopen(cuename, "r")) == NULL) |
357 | return -1; | |
358 | fi = ftmp; | |
ef79bbde P |
359 | } |
360 | ||
361 | // Some stupid tutorials wrongly tell users to use cdrdao to rip a | |
362 | // "bin/cue" image, which is in fact a "bin/toc" image. So let's check | |
363 | // that... | |
364 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
365 | if (!strncmp(linebuf, "CD_ROM_XA", 9)) { | |
366 | // Don't proceed further, as this is actually a .toc file rather | |
367 | // than a .cue file. | |
34ee3480 | 368 | if (ftmp) |
369 | fclose(ftmp); | |
ef79bbde P |
370 | return parsetoc(isofile); |
371 | } | |
34ee3480 | 372 | rewind(fi); |
ef79bbde P |
373 | } |
374 | ||
38b8102c | 375 | // build a path for files referenced in .cue |
376 | strncpy(filepath, cuename, sizeof(filepath)); | |
22bbabf6 | 377 | tmp = strrchr(filepath, '/'); |
38b8102c | 378 | if (tmp == NULL) |
22bbabf6 | 379 | tmp = strrchr(filepath, '\\'); |
380 | if (tmp != NULL) | |
381 | tmp++; | |
382 | else | |
38b8102c | 383 | tmp = filepath; |
384 | *tmp = 0; | |
385 | filepath[sizeof(filepath) - 1] = 0; | |
386 | incue_fname = tmp; | |
387 | incue_max_len = sizeof(filepath) - (tmp - filepath) - 1; | |
388 | ||
ef79bbde P |
389 | memset(&ti, 0, sizeof(ti)); |
390 | ||
19c03d80 | 391 | file_len = 0; |
392 | sector_offs = 2 * 75; | |
393 | ||
ef79bbde P |
394 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
395 | strncpy(dummy, linebuf, sizeof(linebuf)); | |
396 | token = strtok(dummy, " "); | |
397 | ||
398 | if (token == NULL) { | |
399 | continue; | |
400 | } | |
401 | ||
19c03d80 | 402 | if (!strcmp(token, "TRACK")) { |
ef79bbde P |
403 | numtracks++; |
404 | ||
77160d47 | 405 | sector_size = 0; |
ef79bbde P |
406 | if (strstr(linebuf, "AUDIO") != NULL) { |
407 | ti[numtracks].type = CDDA; | |
77160d47 | 408 | sector_size = 2352; |
ef79bbde | 409 | } |
77160d47 | 410 | else if (sscanf(linebuf, " TRACK %u MODE%u/%u", &t, &mode, §or_size) == 3) |
ef79bbde | 411 | ti[numtracks].type = DATA; |
77160d47 | 412 | else { |
413 | SysPrintf(".cue: failed to parse TRACK\n"); | |
414 | ti[numtracks].type = numtracks == 1 ? DATA : CDDA; | |
ef79bbde | 415 | } |
77160d47 | 416 | if (sector_size == 0) |
417 | sector_size = 2352; | |
ef79bbde P |
418 | } |
419 | else if (!strcmp(token, "INDEX")) { | |
77160d47 | 420 | if (sscanf(linebuf, " INDEX %02d %8s", &t, time) != 2) |
421 | SysPrintf(".cue: failed to parse INDEX\n"); | |
19c03d80 | 422 | tok2msf(time, (char *)&ti[numtracks].start); |
ef79bbde | 423 | |
19c03d80 | 424 | t = msf2sec(ti[numtracks].start); |
77160d47 | 425 | ti[numtracks].start_offset = t * sector_size; |
19c03d80 | 426 | t += sector_offs; |
ef79bbde | 427 | sec2msf(t, ti[numtracks].start); |
19c03d80 | 428 | |
429 | // default track length to file length | |
77160d47 | 430 | t = file_len - ti[numtracks].start_offset / sector_size; |
19c03d80 | 431 | sec2msf(t, ti[numtracks].length); |
432 | ||
433 | if (numtracks > 1 && ti[numtracks].handle == NULL) { | |
434 | // this track uses the same file as the last, | |
435 | // start of this track is last track's end | |
436 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
437 | sec2msf(t, ti[numtracks - 1].length); | |
38b8102c | 438 | } |
8aa91443 | 439 | if (numtracks > 1 && pregapOffset == -1) |
77160d47 | 440 | pregapOffset = ti[numtracks].start_offset / sector_size; |
19c03d80 | 441 | } |
442 | else if (!strcmp(token, "PREGAP")) { | |
443 | if (sscanf(linebuf, " PREGAP %8s", time) == 1) { | |
444 | tok2msf(time, dummy); | |
445 | sector_offs += msf2sec(dummy); | |
38b8102c | 446 | } |
8aa91443 | 447 | pregapOffset = -1; // mark to fill track start_offset |
19c03d80 | 448 | } |
449 | else if (!strcmp(token, "FILE")) { | |
9a9bcd78 | 450 | t = sscanf(linebuf, " FILE \"%255[^\"]\"", tmpb); |
385c023b | 451 | if (t != 1) |
9a9bcd78 | 452 | sscanf(linebuf, " FILE %255s", tmpb); |
19c03d80 | 453 | |
454 | // absolute path? | |
455 | ti[numtracks + 1].handle = fopen(tmpb, "rb"); | |
456 | if (ti[numtracks + 1].handle == NULL) { | |
457 | // relative to .cue? | |
458 | tmp = strrchr(tmpb, '\\'); | |
459 | if (tmp == NULL) | |
460 | tmp = strrchr(tmpb, '/'); | |
38b8102c | 461 | if (tmp != NULL) |
19c03d80 | 462 | tmp++; |
463 | else | |
464 | tmp = tmpb; | |
465 | strncpy(incue_fname, tmp, incue_max_len); | |
466 | ti[numtracks + 1].handle = fopen(filepath, "rb"); | |
38b8102c | 467 | } |
ef79bbde | 468 | |
19c03d80 | 469 | // update global offset if this is not first file in this .cue |
deebc67f | 470 | if (numtracks + 1 > 1) { |
471 | multifile = 1; | |
19c03d80 | 472 | sector_offs += file_len; |
deebc67f | 473 | } |
19c03d80 | 474 | |
475 | file_len = 0; | |
38b8102c | 476 | if (ti[numtracks + 1].handle == NULL) { |
19c03d80 | 477 | SysPrintf(_("\ncould not open: %s\n"), filepath); |
478 | continue; | |
38b8102c | 479 | } |
34ee3480 | 480 | file_len = get_size(ti[numtracks + 1].handle) / 2352; |
ef79bbde P |
481 | } |
482 | } | |
483 | ||
34ee3480 | 484 | if (ftmp) |
485 | fclose(ftmp); | |
ef79bbde | 486 | |
0e178648 | 487 | // if there are no tracks detected, then it's not a cue file |
488 | if (!numtracks) | |
489 | return -1; | |
490 | ||
34ee3480 | 491 | // the data track handle is always in cdHandle |
492 | if (ti[1].handle) { | |
493 | fclose(cdHandle); | |
494 | cdHandle = ti[1].handle; | |
495 | ti[1].handle = NULL; | |
496 | } | |
ef79bbde P |
497 | return 0; |
498 | } | |
499 | ||
500 | // this function tries to get the .ccd file of the given .img | |
501 | // the necessary data is put into the ti (trackinformation)-array | |
502 | static int parseccd(const char *isofile) { | |
503 | char ccdname[MAXPATHLEN]; | |
504 | FILE *fi; | |
505 | char linebuf[256]; | |
506 | unsigned int t; | |
507 | ||
508 | numtracks = 0; | |
509 | ||
510 | // copy name of the iso and change extension from .img to .ccd | |
511 | strncpy(ccdname, isofile, sizeof(ccdname)); | |
512 | ccdname[MAXPATHLEN - 1] = '\0'; | |
513 | if (strlen(ccdname) >= 4) { | |
514 | strcpy(ccdname + strlen(ccdname) - 4, ".ccd"); | |
515 | } | |
516 | else { | |
517 | return -1; | |
518 | } | |
519 | ||
520 | if ((fi = fopen(ccdname, "r")) == NULL) { | |
521 | return -1; | |
522 | } | |
523 | ||
524 | memset(&ti, 0, sizeof(ti)); | |
525 | ||
526 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
527 | if (!strncmp(linebuf, "[TRACK", 6)){ | |
528 | numtracks++; | |
529 | } | |
530 | else if (!strncmp(linebuf, "MODE=", 5)) { | |
531 | sscanf(linebuf, "MODE=%d", &t); | |
532 | ti[numtracks].type = ((t == 0) ? CDDA : DATA); | |
533 | } | |
534 | else if (!strncmp(linebuf, "INDEX 1=", 8)) { | |
535 | sscanf(linebuf, "INDEX 1=%d", &t); | |
536 | sec2msf(t + 2 * 75, ti[numtracks].start); | |
77160d47 | 537 | ti[numtracks].start_offset = t * 2352; |
ef79bbde P |
538 | |
539 | // If we've already seen another track, this is its end | |
540 | if (numtracks > 1) { | |
541 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
542 | sec2msf(t, ti[numtracks - 1].length); | |
543 | } | |
544 | } | |
545 | } | |
546 | ||
547 | fclose(fi); | |
548 | ||
549 | // Fill out the last track's end based on size | |
550 | if (numtracks >= 1) { | |
34ee3480 | 551 | t = get_size(cdHandle) / 2352 - msf2sec(ti[numtracks].start) + 2 * 75; |
ef79bbde P |
552 | sec2msf(t, ti[numtracks].length); |
553 | } | |
554 | ||
555 | return 0; | |
556 | } | |
557 | ||
558 | // this function tries to get the .mds file of the given .mdf | |
559 | // the necessary data is put into the ti (trackinformation)-array | |
560 | static int parsemds(const char *isofile) { | |
561 | char mdsname[MAXPATHLEN]; | |
562 | FILE *fi; | |
563 | unsigned int offset, extra_offset, l, i; | |
564 | unsigned short s; | |
565 | ||
566 | numtracks = 0; | |
567 | ||
568 | // copy name of the iso and change extension from .mdf to .mds | |
569 | strncpy(mdsname, isofile, sizeof(mdsname)); | |
570 | mdsname[MAXPATHLEN - 1] = '\0'; | |
571 | if (strlen(mdsname) >= 4) { | |
572 | strcpy(mdsname + strlen(mdsname) - 4, ".mds"); | |
573 | } | |
574 | else { | |
575 | return -1; | |
576 | } | |
577 | ||
578 | if ((fi = fopen(mdsname, "rb")) == NULL) { | |
579 | return -1; | |
580 | } | |
581 | ||
582 | memset(&ti, 0, sizeof(ti)); | |
583 | ||
584 | // check if it's a valid mds file | |
0e178648 | 585 | if (fread(&i, 1, sizeof(i), fi) != sizeof(i)) |
586 | goto fail_io; | |
ef79bbde P |
587 | i = SWAP32(i); |
588 | if (i != 0x4944454D) { | |
589 | // not an valid mds file | |
590 | fclose(fi); | |
591 | return -1; | |
592 | } | |
593 | ||
594 | // get offset to session block | |
595 | fseek(fi, 0x50, SEEK_SET); | |
0e178648 | 596 | if (fread(&offset, 1, sizeof(offset), fi) != sizeof(offset)) |
597 | goto fail_io; | |
ef79bbde P |
598 | offset = SWAP32(offset); |
599 | ||
600 | // get total number of tracks | |
601 | offset += 14; | |
602 | fseek(fi, offset, SEEK_SET); | |
0e178648 | 603 | if (fread(&s, 1, sizeof(s), fi) != sizeof(s)) |
604 | goto fail_io; | |
ef79bbde P |
605 | s = SWAP16(s); |
606 | numtracks = s; | |
607 | ||
608 | // get offset to track blocks | |
609 | fseek(fi, 4, SEEK_CUR); | |
0e178648 | 610 | if (fread(&offset, 1, sizeof(offset), fi) != sizeof(offset)) |
611 | goto fail_io; | |
ef79bbde P |
612 | offset = SWAP32(offset); |
613 | ||
614 | // skip lead-in data | |
615 | while (1) { | |
616 | fseek(fi, offset + 4, SEEK_SET); | |
617 | if (fgetc(fi) < 0xA0) { | |
618 | break; | |
619 | } | |
620 | offset += 0x50; | |
621 | } | |
622 | ||
623 | // check if the image contains mixed subchannel data | |
624 | fseek(fi, offset + 1, SEEK_SET); | |
77160d47 | 625 | subChanMixed = subChanRaw = (fgetc(fi) ? TRUE : FALSE); |
ef79bbde P |
626 | |
627 | // read track data | |
628 | for (i = 1; i <= numtracks; i++) { | |
629 | fseek(fi, offset, SEEK_SET); | |
630 | ||
631 | // get the track type | |
632 | ti[i].type = ((fgetc(fi) == 0xA9) ? CDDA : DATA); | |
633 | fseek(fi, 8, SEEK_CUR); | |
634 | ||
635 | // get the track starting point | |
636 | ti[i].start[0] = fgetc(fi); | |
637 | ti[i].start[1] = fgetc(fi); | |
638 | ti[i].start[2] = fgetc(fi); | |
639 | ||
0e178648 | 640 | if (fread(&extra_offset, 1, sizeof(extra_offset), fi) != sizeof(extra_offset)) |
641 | goto fail_io; | |
ef79bbde P |
642 | extra_offset = SWAP32(extra_offset); |
643 | ||
19c03d80 | 644 | // get track start offset (in .mdf) |
645 | fseek(fi, offset + 0x28, SEEK_SET); | |
0e178648 | 646 | if (fread(&l, 1, sizeof(l), fi) != sizeof(l)) |
647 | goto fail_io; | |
19c03d80 | 648 | l = SWAP32(l); |
77160d47 | 649 | ti[i].start_offset = l; |
19c03d80 | 650 | |
8aa91443 | 651 | // get pregap |
652 | fseek(fi, extra_offset, SEEK_SET); | |
0e178648 | 653 | if (fread(&l, 1, sizeof(l), fi) != sizeof(l)) |
654 | goto fail_io; | |
8aa91443 | 655 | l = SWAP32(l); |
656 | if (l != 0 && i > 1) | |
77160d47 | 657 | pregapOffset = msf2sec(ti[i].start); |
8aa91443 | 658 | |
659 | // get the track length | |
0e178648 | 660 | if (fread(&l, 1, sizeof(l), fi) != sizeof(l)) |
661 | goto fail_io; | |
8aa91443 | 662 | l = SWAP32(l); |
663 | sec2msf(l, ti[i].length); | |
664 | ||
ef79bbde P |
665 | offset += 0x50; |
666 | } | |
ef79bbde P |
667 | fclose(fi); |
668 | return 0; | |
0e178648 | 669 | fail_io: |
670 | #ifndef NDEBUG | |
671 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
672 | #endif | |
673 | fclose(fi); | |
674 | return -1; | |
ef79bbde P |
675 | } |
676 | ||
0877957a | 677 | static int handlepbp(const char *isofile) { |
9a92bffb | 678 | struct { |
679 | unsigned int sig; | |
680 | unsigned int dontcare[8]; | |
681 | unsigned int psar_offs; | |
682 | } pbp_hdr; | |
683 | struct { | |
684 | unsigned char type; | |
685 | unsigned char pad0; | |
686 | unsigned char track; | |
687 | char index0[3]; | |
688 | char pad1; | |
689 | char index1[3]; | |
690 | } toc_entry; | |
691 | struct { | |
692 | unsigned int offset; | |
693 | unsigned int size; | |
694 | unsigned int dontcare[6]; | |
695 | } index_entry; | |
0c2871a7 | 696 | char psar_sig[11]; |
cc376814 | 697 | off_t psisoimg_offs, cdimg_base; |
698 | unsigned int t, cd_length; | |
699 | unsigned int offsettab[8]; | |
20773741 | 700 | unsigned int psar_offs, index_entry_size, index_entry_offset; |
9a92bffb | 701 | const char *ext = NULL; |
702 | int i, ret; | |
703 | ||
704 | if (strlen(isofile) >= 4) | |
705 | ext = isofile + strlen(isofile) - 4; | |
34ee3480 | 706 | if (ext == NULL || strcasecmp(ext, ".pbp") != 0) |
9a92bffb | 707 | return -1; |
708 | ||
709 | numtracks = 0; | |
710 | ||
711 | ret = fread(&pbp_hdr, 1, sizeof(pbp_hdr), cdHandle); | |
712 | if (ret != sizeof(pbp_hdr)) { | |
f29fbd53 | 713 | SysPrintf("failed to read pbp\n"); |
9a92bffb | 714 | goto fail_io; |
715 | } | |
716 | ||
20773741 PC |
717 | psar_offs = SWAP32(pbp_hdr.psar_offs); |
718 | ||
719 | ret = fseeko(cdHandle, psar_offs, SEEK_SET); | |
9a92bffb | 720 | if (ret != 0) { |
20773741 | 721 | SysPrintf("failed to seek to %x\n", psar_offs); |
9a92bffb | 722 | goto fail_io; |
723 | } | |
724 | ||
20773741 | 725 | psisoimg_offs = psar_offs; |
0e178648 | 726 | if (fread(psar_sig, 1, sizeof(psar_sig), cdHandle) != sizeof(psar_sig)) |
727 | goto fail_io; | |
0c2871a7 | 728 | psar_sig[10] = 0; |
729 | if (strcmp(psar_sig, "PSTITLEIMG") == 0) { | |
730 | // multidisk image? | |
20773741 | 731 | ret = fseeko(cdHandle, psar_offs + 0x200, SEEK_SET); |
0c2871a7 | 732 | if (ret != 0) { |
20773741 | 733 | SysPrintf("failed to seek to %x\n", psar_offs + 0x200); |
0c2871a7 | 734 | goto fail_io; |
735 | } | |
736 | ||
737 | if (fread(&offsettab, 1, sizeof(offsettab), cdHandle) != sizeof(offsettab)) { | |
f29fbd53 | 738 | SysPrintf("failed to read offsettab\n"); |
0c2871a7 | 739 | goto fail_io; |
740 | } | |
741 | ||
742 | for (i = 0; i < sizeof(offsettab) / sizeof(offsettab[0]); i++) { | |
743 | if (offsettab[i] == 0) | |
744 | break; | |
745 | } | |
746 | cdrIsoMultidiskCount = i; | |
747 | if (cdrIsoMultidiskCount == 0) { | |
f29fbd53 | 748 | SysPrintf("multidisk eboot has 0 images?\n"); |
0c2871a7 | 749 | goto fail_io; |
750 | } | |
751 | ||
752 | if (cdrIsoMultidiskSelect >= cdrIsoMultidiskCount) | |
753 | cdrIsoMultidiskSelect = 0; | |
754 | ||
20773741 | 755 | psisoimg_offs += SWAP32(offsettab[cdrIsoMultidiskSelect]); |
0c2871a7 | 756 | |
cc376814 | 757 | ret = fseeko(cdHandle, psisoimg_offs, SEEK_SET); |
0c2871a7 | 758 | if (ret != 0) { |
cc376814 | 759 | SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs); |
0c2871a7 | 760 | goto fail_io; |
761 | } | |
762 | ||
0e178648 | 763 | if (fread(psar_sig, 1, sizeof(psar_sig), cdHandle) != sizeof(psar_sig)) |
764 | goto fail_io; | |
0c2871a7 | 765 | psar_sig[10] = 0; |
766 | } | |
767 | ||
768 | if (strcmp(psar_sig, "PSISOIMG00") != 0) { | |
f29fbd53 | 769 | SysPrintf("bad psar_sig: %s\n", psar_sig); |
9a92bffb | 770 | goto fail_io; |
771 | } | |
772 | ||
773 | // seek to TOC | |
cc376814 | 774 | ret = fseeko(cdHandle, psisoimg_offs + 0x800, SEEK_SET); |
9a92bffb | 775 | if (ret != 0) { |
cc376814 | 776 | SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs + 0x800); |
9a92bffb | 777 | goto fail_io; |
778 | } | |
779 | ||
780 | // first 3 entries are special | |
781 | fseek(cdHandle, sizeof(toc_entry), SEEK_CUR); | |
0e178648 | 782 | if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry)) |
783 | goto fail_io; | |
9a92bffb | 784 | numtracks = btoi(toc_entry.index1[0]); |
785 | ||
0e178648 | 786 | if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry)) |
787 | goto fail_io; | |
9a92bffb | 788 | cd_length = btoi(toc_entry.index1[0]) * 60 * 75 + |
789 | btoi(toc_entry.index1[1]) * 75 + btoi(toc_entry.index1[2]); | |
790 | ||
791 | for (i = 1; i <= numtracks; i++) { | |
0e178648 | 792 | if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry)) |
793 | goto fail_io; | |
9a92bffb | 794 | |
795 | ti[i].type = (toc_entry.type == 1) ? CDDA : DATA; | |
796 | ||
797 | ti[i].start_offset = btoi(toc_entry.index0[0]) * 60 * 75 + | |
798 | btoi(toc_entry.index0[1]) * 75 + btoi(toc_entry.index0[2]); | |
77160d47 | 799 | ti[i].start_offset *= 2352; |
9a92bffb | 800 | ti[i].start[0] = btoi(toc_entry.index1[0]); |
801 | ti[i].start[1] = btoi(toc_entry.index1[1]); | |
802 | ti[i].start[2] = btoi(toc_entry.index1[2]); | |
803 | ||
804 | if (i > 1) { | |
805 | t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start); | |
806 | sec2msf(t, ti[i - 1].length); | |
807 | } | |
808 | } | |
77160d47 | 809 | t = cd_length - ti[numtracks].start_offset / 2352; |
9a92bffb | 810 | sec2msf(t, ti[numtracks].length); |
811 | ||
812 | // seek to ISO index | |
cc376814 | 813 | ret = fseeko(cdHandle, psisoimg_offs + 0x4000, SEEK_SET); |
9a92bffb | 814 | if (ret != 0) { |
f29fbd53 | 815 | SysPrintf("failed to seek to ISO index\n"); |
9a92bffb | 816 | goto fail_io; |
817 | } | |
818 | ||
819 | compr_img = calloc(1, sizeof(*compr_img)); | |
820 | if (compr_img == NULL) | |
821 | goto fail_io; | |
822 | ||
0877957a | 823 | compr_img->block_shift = 4; |
9a92bffb | 824 | compr_img->current_block = (unsigned int)-1; |
825 | ||
826 | compr_img->index_len = (0x100000 - 0x4000) / sizeof(index_entry); | |
827 | compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); | |
828 | if (compr_img->index_table == NULL) | |
829 | goto fail_io; | |
830 | ||
0c2871a7 | 831 | cdimg_base = psisoimg_offs + 0x100000; |
9a92bffb | 832 | for (i = 0; i < compr_img->index_len; i++) { |
833 | ret = fread(&index_entry, 1, sizeof(index_entry), cdHandle); | |
834 | if (ret != sizeof(index_entry)) { | |
f29fbd53 | 835 | SysPrintf("failed to read index_entry #%d\n", i); |
9a92bffb | 836 | goto fail_index; |
837 | } | |
838 | ||
20773741 PC |
839 | index_entry_size = SWAP32(index_entry.size); |
840 | index_entry_offset = SWAP32(index_entry.offset); | |
841 | ||
842 | if (index_entry_size == 0) | |
9a92bffb | 843 | break; |
844 | ||
20773741 | 845 | compr_img->index_table[i] = cdimg_base + index_entry_offset; |
9a92bffb | 846 | } |
20773741 | 847 | compr_img->index_table[i] = cdimg_base + index_entry_offset + index_entry_size; |
9a92bffb | 848 | |
849 | return 0; | |
850 | ||
851 | fail_index: | |
852 | free(compr_img->index_table); | |
853 | compr_img->index_table = NULL; | |
0e178648 | 854 | goto done; |
855 | ||
9a92bffb | 856 | fail_io: |
0e178648 | 857 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); |
34ee3480 | 858 | rewind(cdHandle); |
0e178648 | 859 | |
860 | done: | |
0877957a | 861 | if (compr_img != NULL) { |
862 | free(compr_img); | |
863 | compr_img = NULL; | |
864 | } | |
865 | return -1; | |
866 | } | |
867 | ||
868 | static int handlecbin(const char *isofile) { | |
869 | struct | |
870 | { | |
871 | char magic[4]; | |
872 | unsigned int header_size; | |
873 | unsigned long long total_bytes; | |
874 | unsigned int block_size; | |
875 | unsigned char ver; // 1 | |
876 | unsigned char align; | |
877 | unsigned char rsv_06[2]; | |
878 | } ciso_hdr; | |
879 | const char *ext = NULL; | |
cc376814 | 880 | unsigned int *index_table = NULL; |
0c2871a7 | 881 | unsigned int index = 0, plain; |
0877957a | 882 | int i, ret; |
883 | ||
884 | if (strlen(isofile) >= 5) | |
885 | ext = isofile + strlen(isofile) - 5; | |
886 | if (ext == NULL || (strcasecmp(ext + 1, ".cbn") != 0 && strcasecmp(ext, ".cbin") != 0)) | |
887 | return -1; | |
888 | ||
889 | ret = fread(&ciso_hdr, 1, sizeof(ciso_hdr), cdHandle); | |
890 | if (ret != sizeof(ciso_hdr)) { | |
f29fbd53 | 891 | SysPrintf("failed to read ciso header\n"); |
34ee3480 | 892 | goto fail_io; |
0877957a | 893 | } |
894 | ||
895 | if (strncmp(ciso_hdr.magic, "CISO", 4) != 0 || ciso_hdr.total_bytes <= 0 || ciso_hdr.block_size <= 0) { | |
f29fbd53 | 896 | SysPrintf("bad ciso header\n"); |
34ee3480 | 897 | goto fail_io; |
0877957a | 898 | } |
899 | if (ciso_hdr.header_size != 0 && ciso_hdr.header_size != sizeof(ciso_hdr)) { | |
cc376814 | 900 | ret = fseeko(cdHandle, ciso_hdr.header_size, SEEK_SET); |
0877957a | 901 | if (ret != 0) { |
f29fbd53 | 902 | SysPrintf("failed to seek to %x\n", ciso_hdr.header_size); |
34ee3480 | 903 | goto fail_io; |
0877957a | 904 | } |
905 | } | |
906 | ||
907 | compr_img = calloc(1, sizeof(*compr_img)); | |
908 | if (compr_img == NULL) | |
909 | goto fail_io; | |
910 | ||
911 | compr_img->block_shift = 0; | |
912 | compr_img->current_block = (unsigned int)-1; | |
913 | ||
914 | compr_img->index_len = ciso_hdr.total_bytes / ciso_hdr.block_size; | |
cc376814 | 915 | index_table = malloc((compr_img->index_len + 1) * sizeof(index_table[0])); |
916 | if (index_table == NULL) | |
0877957a | 917 | goto fail_io; |
918 | ||
cc376814 | 919 | ret = fread(index_table, sizeof(index_table[0]), compr_img->index_len, cdHandle); |
0877957a | 920 | if (ret != compr_img->index_len) { |
f29fbd53 | 921 | SysPrintf("failed to read index table\n"); |
0877957a | 922 | goto fail_index; |
923 | } | |
924 | ||
cc376814 | 925 | compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); |
926 | if (compr_img->index_table == NULL) | |
927 | goto fail_index; | |
928 | ||
0877957a | 929 | for (i = 0; i < compr_img->index_len + 1; i++) { |
cc376814 | 930 | index = index_table[i]; |
0877957a | 931 | plain = index & 0x80000000; |
932 | index &= 0x7fffffff; | |
cc376814 | 933 | compr_img->index_table[i] = (off_t)index << ciso_hdr.align; |
934 | if (plain) | |
935 | compr_img->index_table[i] |= OFF_T_MSB; | |
0877957a | 936 | } |
0877957a | 937 | |
938 | return 0; | |
939 | ||
940 | fail_index: | |
cc376814 | 941 | free(index_table); |
0877957a | 942 | fail_io: |
943 | if (compr_img != NULL) { | |
944 | free(compr_img); | |
945 | compr_img = NULL; | |
946 | } | |
34ee3480 | 947 | rewind(cdHandle); |
9a92bffb | 948 | return -1; |
949 | } | |
950 | ||
00f0670c | 951 | #ifdef HAVE_CHD |
952 | static int handlechd(const char *isofile) { | |
817d98ee | 953 | int frame_offset = 150; |
00f0670c | 954 | int file_offset = 0; |
955 | ||
0e178648 | 956 | chd_img = calloc(1, sizeof(*chd_img)); |
00f0670c | 957 | if (chd_img == NULL) |
958 | goto fail_io; | |
959 | ||
960 | if(chd_open(isofile, CHD_OPEN_READ, NULL, &chd_img->chd) != CHDERR_NONE) | |
961 | goto fail_io; | |
962 | ||
0e178648 | 963 | if (Config.CHD_Precache && (chd_precache(chd_img->chd) != CHDERR_NONE)) |
964 | goto fail_io; | |
965 | ||
00f0670c | 966 | chd_img->header = chd_get_header(chd_img->chd); |
967 | ||
9afc3b57 | 968 | chd_img->buffer = malloc(chd_img->header->hunkbytes * 2); |
00f0670c | 969 | if (chd_img->buffer == NULL) |
970 | goto fail_io; | |
971 | ||
972 | chd_img->sectors_per_hunk = chd_img->header->hunkbytes / (CD_FRAMESIZE_RAW + SUB_FRAMESIZE); | |
9afc3b57 | 973 | chd_img->current_hunk[0] = (unsigned int)-1; |
974 | chd_img->current_hunk[1] = (unsigned int)-1; | |
00f0670c | 975 | |
976 | cddaBigEndian = TRUE; | |
977 | ||
978 | numtracks = 0; | |
979 | memset(ti, 0, sizeof(ti)); | |
980 | ||
981 | while (1) | |
982 | { | |
983 | struct { | |
984 | char type[64]; | |
985 | char subtype[32]; | |
986 | char pgtype[32]; | |
987 | char pgsub[32]; | |
988 | uint32_t track; | |
989 | uint32_t frames; | |
990 | uint32_t pregap; | |
991 | uint32_t postgap; | |
992 | } md = {}; | |
993 | char meta[256]; | |
994 | uint32_t meta_size = 0; | |
995 | ||
996 | if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA2_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE) | |
997 | sscanf(meta, CDROM_TRACK_METADATA2_FORMAT, &md.track, md.type, md.subtype, &md.frames, &md.pregap, md.pgtype, md.pgsub, &md.postgap); | |
998 | else if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE) | |
999 | sscanf(meta, CDROM_TRACK_METADATA_FORMAT, &md.track, md.type, md.subtype, &md.frames); | |
1000 | else | |
1001 | break; | |
1002 | ||
acc62284 | 1003 | SysPrintf("chd: %s\n", meta); |
1004 | ||
1005 | if (md.track == 1) { | |
acc62284 | 1006 | if (!strncmp(md.subtype, "RW", 2)) { |
1007 | subChanMixed = TRUE; | |
1008 | if (!strcmp(md.subtype, "RW_RAW")) | |
1009 | subChanRaw = TRUE; | |
1010 | } | |
1011 | } | |
00f0670c | 1012 | |
1013 | ti[md.track].type = !strncmp(md.type, "AUDIO", 5) ? CDDA : DATA; | |
1014 | ||
1015 | sec2msf(frame_offset + md.pregap, ti[md.track].start); | |
1016 | sec2msf(md.frames, ti[md.track].length); | |
1017 | ||
817d98ee | 1018 | ti[md.track].start_offset = file_offset + md.pregap; |
00f0670c | 1019 | |
817d98ee | 1020 | // XXX: what about postgap? |
1021 | frame_offset += md.frames; | |
1022 | file_offset += md.frames; | |
00f0670c | 1023 | numtracks++; |
1024 | } | |
1025 | ||
1026 | if (numtracks) | |
1027 | return 0; | |
1028 | ||
1029 | fail_io: | |
1030 | if (chd_img != NULL) { | |
1031 | free(chd_img->buffer); | |
1032 | free(chd_img); | |
1033 | chd_img = NULL; | |
1034 | } | |
1035 | return -1; | |
1036 | } | |
1037 | #endif | |
1038 | ||
ef79bbde P |
1039 | // this function tries to get the .sub file of the given .img |
1040 | static int opensubfile(const char *isoname) { | |
1041 | char subname[MAXPATHLEN]; | |
1042 | ||
1043 | // copy name of the iso and change extension from .img to .sub | |
1044 | strncpy(subname, isoname, sizeof(subname)); | |
1045 | subname[MAXPATHLEN - 1] = '\0'; | |
1046 | if (strlen(subname) >= 4) { | |
1047 | strcpy(subname + strlen(subname) - 4, ".sub"); | |
1048 | } | |
1049 | else { | |
1050 | return -1; | |
1051 | } | |
1052 | ||
1053 | subHandle = fopen(subname, "rb"); | |
1054 | if (subHandle == NULL) { | |
1055 | return -1; | |
1056 | } | |
1057 | ||
1058 | return 0; | |
1059 | } | |
1060 | ||
ae4e7dc9 | 1061 | static int opensbifile(const char *isoname) { |
0e178648 | 1062 | char sbiname[MAXPATHLEN], disknum[MAXPATHLEN] = "0"; |
ae4e7dc9 | 1063 | int s; |
1064 | ||
1065 | strncpy(sbiname, isoname, sizeof(sbiname)); | |
1066 | sbiname[MAXPATHLEN - 1] = '\0'; | |
1067 | if (strlen(sbiname) >= 4) { | |
0e178648 | 1068 | if (cdrIsoMultidiskCount > 1) { |
1069 | sprintf(disknum, "_%i.sbi", cdrIsoMultidiskSelect + 1); | |
1070 | strcpy(sbiname + strlen(sbiname) - 4, disknum); | |
1071 | } | |
1072 | else | |
ae4e7dc9 | 1073 | strcpy(sbiname + strlen(sbiname) - 4, ".sbi"); |
1074 | } | |
1075 | else { | |
1076 | return -1; | |
1077 | } | |
1078 | ||
34ee3480 | 1079 | s = msf2sec(ti[1].length); |
ae4e7dc9 | 1080 | |
1081 | return LoadSBI(sbiname, s); | |
1082 | } | |
1083 | ||
77160d47 | 1084 | static int cdread_normal(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1085 | { |
752c1c85 | 1086 | int ret; |
34ee3480 | 1087 | if (!f) |
1088 | return -1; | |
1089 | if (fseeko(f, base + sector * CD_FRAMESIZE_RAW, SEEK_SET)) | |
752c1c85 | 1090 | goto fail_io; |
1091 | ret = fread(dest, 1, CD_FRAMESIZE_RAW, f); | |
1092 | if (ret <= 0) | |
1093 | goto fail_io; | |
1094 | return ret; | |
1095 | ||
1096 | fail_io: | |
1097 | // often happens in cdda gaps of a split cue/bin, so not logged | |
1098 | //SysPrintf("File IO error %d, base %u, sector %u\n", errno, base, sector); | |
1099 | return -1; | |
9a92bffb | 1100 | } |
1101 | ||
77160d47 | 1102 | static int cdread_sub_mixed(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1103 | { |
1104 | int ret; | |
1105 | ||
34ee3480 | 1106 | if (!f) |
1107 | return -1; | |
1108 | if (fseeko(f, base + sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE), SEEK_SET)) | |
752c1c85 | 1109 | goto fail_io; |
81abe4d5 | 1110 | ret = fread(dest, 1, CD_FRAMESIZE_RAW, f); |
752c1c85 | 1111 | if (ret <= 0) |
1112 | goto fail_io; | |
1113 | return ret; | |
1114 | ||
1115 | fail_io: | |
1116 | //SysPrintf("File IO error %d, base %u, sector %u\n", errno, base, sector); | |
1117 | return -1; | |
1118 | } | |
1119 | ||
1120 | static int cdread_sub_sub_mixed(FILE *f, int sector) | |
1121 | { | |
34ee3480 | 1122 | if (!f) |
1123 | return -1; | |
1124 | if (fseeko(f, sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + CD_FRAMESIZE_RAW, SEEK_SET)) | |
752c1c85 | 1125 | goto fail_io; |
0e178648 | 1126 | if (fread(subbuffer, 1, SUB_FRAMESIZE, f) != SUB_FRAMESIZE) |
1127 | goto fail_io; | |
9a92bffb | 1128 | |
752c1c85 | 1129 | return SUB_FRAMESIZE; |
9a92bffb | 1130 | |
0e178648 | 1131 | fail_io: |
752c1c85 | 1132 | SysPrintf("subchannel: file IO error %d, sector %u\n", errno, sector); |
1133 | return -1; | |
9a92bffb | 1134 | } |
1135 | ||
2dd6a826 | 1136 | static int uncompress2_pcsx(void *out, unsigned long *out_size, void *in, unsigned long in_size) |
9a92bffb | 1137 | { |
1138 | static z_stream z; | |
1139 | int ret = 0; | |
1140 | ||
1141 | if (z.zalloc == NULL) { | |
1142 | // XXX: one-time leak here.. | |
1143 | z.next_in = Z_NULL; | |
1144 | z.avail_in = 0; | |
1145 | z.zalloc = Z_NULL; | |
1146 | z.zfree = Z_NULL; | |
1147 | z.opaque = Z_NULL; | |
1148 | ret = inflateInit2(&z, -15); | |
1149 | } | |
1150 | else | |
1151 | ret = inflateReset(&z); | |
1152 | if (ret != Z_OK) | |
1153 | return ret; | |
1154 | ||
1155 | z.next_in = in; | |
1156 | z.avail_in = in_size; | |
1157 | z.next_out = out; | |
1158 | z.avail_out = *out_size; | |
1159 | ||
1160 | ret = inflate(&z, Z_NO_FLUSH); | |
1161 | //inflateEnd(&z); | |
1162 | ||
1163 | *out_size -= z.avail_out; | |
1164 | return ret == 1 ? 0 : ret; | |
1165 | } | |
1166 | ||
77160d47 | 1167 | static int cdread_compressed(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1168 | { |
0877957a | 1169 | unsigned long cdbuffer_size, cdbuffer_size_expect; |
cc376814 | 1170 | unsigned int size; |
0877957a | 1171 | int is_compressed; |
cc376814 | 1172 | off_t start_byte; |
9a92bffb | 1173 | int ret, block; |
1174 | ||
34ee3480 | 1175 | if (!cdHandle) |
1176 | return -1; | |
77160d47 | 1177 | if (base) |
1178 | sector += base / 2352; | |
1179 | ||
0877957a | 1180 | block = sector >> compr_img->block_shift; |
1181 | compr_img->sector_in_blk = sector & ((1 << compr_img->block_shift) - 1); | |
9a92bffb | 1182 | |
1183 | if (block == compr_img->current_block) { | |
1184 | //printf("hit sect %d\n", sector); | |
1185 | goto finish; | |
1186 | } | |
1187 | ||
1188 | if (sector >= compr_img->index_len * 16) { | |
f29fbd53 | 1189 | SysPrintf("sector %d is past img end\n", sector); |
9a92bffb | 1190 | return -1; |
1191 | } | |
1192 | ||
cc376814 | 1193 | start_byte = compr_img->index_table[block] & ~OFF_T_MSB; |
1194 | if (fseeko(cdHandle, start_byte, SEEK_SET) != 0) { | |
1195 | SysPrintf("seek error for block %d at %llx: ", | |
1196 | block, (long long)start_byte); | |
9a92bffb | 1197 | perror(NULL); |
1198 | return -1; | |
1199 | } | |
1200 | ||
cc376814 | 1201 | is_compressed = !(compr_img->index_table[block] & OFF_T_MSB); |
1202 | size = (compr_img->index_table[block + 1] & ~OFF_T_MSB) - start_byte; | |
9a92bffb | 1203 | if (size > sizeof(compr_img->buff_compressed)) { |
f29fbd53 | 1204 | SysPrintf("block %d is too large: %u\n", block, size); |
9a92bffb | 1205 | return -1; |
1206 | } | |
1207 | ||
0877957a | 1208 | if (fread(is_compressed ? compr_img->buff_compressed : compr_img->buff_raw[0], |
1209 | 1, size, cdHandle) != size) { | |
f29fbd53 | 1210 | SysPrintf("read error for block %d at %x: ", block, start_byte); |
9a92bffb | 1211 | perror(NULL); |
1212 | return -1; | |
1213 | } | |
1214 | ||
0877957a | 1215 | if (is_compressed) { |
1216 | cdbuffer_size_expect = sizeof(compr_img->buff_raw[0]) << compr_img->block_shift; | |
1217 | cdbuffer_size = cdbuffer_size_expect; | |
2dd6a826 | 1218 | ret = uncompress2_pcsx(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size); |
0877957a | 1219 | if (ret != 0) { |
f29fbd53 | 1220 | SysPrintf("uncompress failed with %d for block %d, sector %d\n", |
0877957a | 1221 | ret, block, sector); |
1222 | return -1; | |
1223 | } | |
1224 | if (cdbuffer_size != cdbuffer_size_expect) | |
f29fbd53 | 1225 | SysPrintf("cdbuffer_size: %lu != %lu, sector %d\n", cdbuffer_size, |
0877957a | 1226 | cdbuffer_size_expect, sector); |
9a92bffb | 1227 | } |
9a92bffb | 1228 | |
1229 | // done at last! | |
1230 | compr_img->current_block = block; | |
1231 | ||
1232 | finish: | |
1233 | if (dest != cdbuffer) // copy avoid HACK | |
81abe4d5 | 1234 | memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk], |
1235 | CD_FRAMESIZE_RAW); | |
1236 | return CD_FRAMESIZE_RAW; | |
9a92bffb | 1237 | } |
1238 | ||
00f0670c | 1239 | #ifdef HAVE_CHD |
9afc3b57 | 1240 | static unsigned char *chd_get_sector(unsigned int current_buffer, unsigned int sector_in_hunk) |
1241 | { | |
1242 | return chd_img->buffer | |
1243 | + current_buffer * chd_img->header->hunkbytes | |
1244 | + sector_in_hunk * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE); | |
1245 | } | |
1246 | ||
00f0670c | 1247 | static int cdread_chd(FILE *f, unsigned int base, void *dest, int sector) |
1248 | { | |
1249 | int hunk; | |
1250 | ||
cbd88286 | 1251 | sector += base; |
00f0670c | 1252 | |
1253 | hunk = sector / chd_img->sectors_per_hunk; | |
1254 | chd_img->sector_in_hunk = sector % chd_img->sectors_per_hunk; | |
1255 | ||
9afc3b57 | 1256 | if (hunk == chd_img->current_hunk[0]) |
1257 | chd_img->current_buffer = 0; | |
1258 | else if (hunk == chd_img->current_hunk[1]) | |
1259 | chd_img->current_buffer = 1; | |
1260 | else | |
00f0670c | 1261 | { |
9afc3b57 | 1262 | chd_read(chd_img->chd, hunk, chd_img->buffer + |
1263 | chd_img->current_buffer * chd_img->header->hunkbytes); | |
1264 | chd_img->current_hunk[chd_img->current_buffer] = hunk; | |
00f0670c | 1265 | } |
1266 | ||
1267 | if (dest != cdbuffer) // copy avoid HACK | |
9afc3b57 | 1268 | memcpy(dest, chd_get_sector(chd_img->current_buffer, chd_img->sector_in_hunk), |
00f0670c | 1269 | CD_FRAMESIZE_RAW); |
1270 | return CD_FRAMESIZE_RAW; | |
1271 | } | |
752c1c85 | 1272 | |
1273 | static int cdread_sub_chd(FILE *f, int sector) | |
1274 | { | |
9afc3b57 | 1275 | unsigned int sector_in_hunk; |
1276 | unsigned int buffer; | |
752c1c85 | 1277 | int hunk; |
1278 | ||
1279 | if (!subChanMixed) | |
1280 | return -1; | |
1281 | ||
1282 | hunk = sector / chd_img->sectors_per_hunk; | |
9afc3b57 | 1283 | sector_in_hunk = sector % chd_img->sectors_per_hunk; |
752c1c85 | 1284 | |
9afc3b57 | 1285 | if (hunk == chd_img->current_hunk[0]) |
1286 | buffer = 0; | |
1287 | else if (hunk == chd_img->current_hunk[1]) | |
1288 | buffer = 1; | |
1289 | else | |
752c1c85 | 1290 | { |
9afc3b57 | 1291 | buffer = chd_img->current_buffer ^ 1; |
1292 | chd_read(chd_img->chd, hunk, chd_img->buffer + | |
1293 | buffer * chd_img->header->hunkbytes); | |
1294 | chd_img->current_hunk[buffer] = hunk; | |
752c1c85 | 1295 | } |
1296 | ||
9afc3b57 | 1297 | memcpy(subbuffer, chd_get_sector(buffer, sector_in_hunk) + CD_FRAMESIZE_RAW, SUB_FRAMESIZE); |
752c1c85 | 1298 | return SUB_FRAMESIZE; |
1299 | } | |
00f0670c | 1300 | #endif |
1301 | ||
77160d47 | 1302 | static int cdread_2048(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1303 | { |
1304 | int ret; | |
1305 | ||
34ee3480 | 1306 | if (!f) |
1307 | return -1; | |
1308 | fseeko(f, base + sector * 2048, SEEK_SET); | |
81abe4d5 | 1309 | ret = fread((char *)dest + 12 * 2, 1, 2048, f); |
9a92bffb | 1310 | |
1311 | // not really necessary, fake mode 2 header | |
81abe4d5 | 1312 | memset(cdbuffer, 0, 12 * 2); |
1313 | sec2msf(sector + 2 * 75, (char *)&cdbuffer[12]); | |
1314 | cdbuffer[12 + 3] = 1; | |
9a92bffb | 1315 | |
e0f25b64 | 1316 | return 12*2 + ret; |
9a92bffb | 1317 | } |
1318 | ||
1319 | static unsigned char * CALLBACK ISOgetBuffer_compr(void) { | |
1320 | return compr_img->buff_raw[compr_img->sector_in_blk] + 12; | |
1321 | } | |
1322 | ||
00f0670c | 1323 | #ifdef HAVE_CHD |
0e178648 | 1324 | static unsigned char * CALLBACK ISOgetBuffer_chd(void) { |
9afc3b57 | 1325 | return chd_get_sector(chd_img->current_buffer, chd_img->sector_in_hunk) + 12; |
00f0670c | 1326 | } |
1327 | #endif | |
1328 | ||
835c219c | 1329 | unsigned char * CALLBACK ISOgetBuffer(void) { |
81abe4d5 | 1330 | return cdbuffer + 12; |
9a92bffb | 1331 | } |
1332 | ||
ef79bbde P |
1333 | static void PrintTracks(void) { |
1334 | int i; | |
1335 | ||
1336 | for (i = 1; i <= numtracks; i++) { | |
1337 | SysPrintf(_("Track %.2d (%s) - Start %.2d:%.2d:%.2d, Length %.2d:%.2d:%.2d\n"), | |
2f59faba | 1338 | i, (ti[i].type == DATA ? "DATA" : |
1339 | (ti[i].type == CDDA ? "AUDIO" : "UNKNOWN")), | |
ef79bbde P |
1340 | ti[i].start[0], ti[i].start[1], ti[i].start[2], |
1341 | ti[i].length[0], ti[i].length[1], ti[i].length[2]); | |
1342 | } | |
1343 | } | |
1344 | ||
1345 | // This function is invoked by the front-end when opening an ISO | |
1346 | // file for playback | |
1347 | static long CALLBACK ISOopen(void) { | |
9a92bffb | 1348 | boolean isMode1ISO = FALSE; |
689e0447 | 1349 | char alt_bin_filename[MAXPATHLEN]; |
1350 | const char *bin_filename; | |
acc62284 | 1351 | char image_str[1024]; |
34ee3480 | 1352 | off_t size_main; |
9a92bffb | 1353 | |
34ee3480 | 1354 | if (cdHandle || chd_img) { |
ef79bbde P |
1355 | return 0; // it's already open |
1356 | } | |
1357 | ||
1358 | cdHandle = fopen(GetIsoFile(), "rb"); | |
1359 | if (cdHandle == NULL) { | |
2e058581 | 1360 | SysPrintf(_("Could't open '%s' for reading: %s\n"), |
1361 | GetIsoFile(), strerror(errno)); | |
ef79bbde P |
1362 | return -1; |
1363 | } | |
34ee3480 | 1364 | size_main = get_size(cdHandle); |
ef79bbde | 1365 | |
acc62284 | 1366 | snprintf(image_str, sizeof(image_str) - 6*4 - 1, |
1367 | "Loaded CD Image: %s", GetIsoFile()); | |
ef79bbde P |
1368 | |
1369 | cddaBigEndian = FALSE; | |
1370 | subChanMixed = FALSE; | |
1371 | subChanRaw = FALSE; | |
8aa91443 | 1372 | pregapOffset = 0; |
0c2871a7 | 1373 | cdrIsoMultidiskCount = 1; |
deebc67f | 1374 | multifile = 0; |
ef79bbde | 1375 | |
9a92bffb | 1376 | CDR_getBuffer = ISOgetBuffer; |
1377 | cdimg_read_func = cdread_normal; | |
752c1c85 | 1378 | cdimg_read_sub_func = NULL; |
9a92bffb | 1379 | |
92f43ab0 | 1380 | if (parsetoc(GetIsoFile()) == 0) { |
0e178648 | 1381 | strcat(image_str, "[+toc]"); |
ef79bbde P |
1382 | } |
1383 | else if (parseccd(GetIsoFile()) == 0) { | |
0e178648 | 1384 | strcat(image_str, "[+ccd]"); |
ef79bbde P |
1385 | } |
1386 | else if (parsemds(GetIsoFile()) == 0) { | |
0e178648 | 1387 | strcat(image_str, "[+mds]"); |
ef79bbde | 1388 | } |
92f43ab0 | 1389 | else if (parsecue(GetIsoFile()) == 0) { |
0e178648 | 1390 | strcat(image_str, "[+cue]"); |
92f43ab0 | 1391 | } |
0877957a | 1392 | if (handlepbp(GetIsoFile()) == 0) { |
0e178648 | 1393 | strcat(image_str, "[+pbp]"); |
9a92bffb | 1394 | CDR_getBuffer = ISOgetBuffer_compr; |
1395 | cdimg_read_func = cdread_compressed; | |
1396 | } | |
0877957a | 1397 | else if (handlecbin(GetIsoFile()) == 0) { |
0e178648 | 1398 | strcat(image_str, "[+cbin]"); |
0877957a | 1399 | CDR_getBuffer = ISOgetBuffer_compr; |
1400 | cdimg_read_func = cdread_compressed; | |
1401 | } | |
00f0670c | 1402 | #ifdef HAVE_CHD |
1403 | else if (handlechd(GetIsoFile()) == 0) { | |
0e178648 | 1404 | strcat(image_str, "[+chd]"); |
00f0670c | 1405 | CDR_getBuffer = ISOgetBuffer_chd; |
1406 | cdimg_read_func = cdread_chd; | |
752c1c85 | 1407 | cdimg_read_sub_func = cdread_sub_chd; |
34ee3480 | 1408 | fclose(cdHandle); |
1409 | cdHandle = NULL; | |
00f0670c | 1410 | } |
1411 | #endif | |
ef79bbde P |
1412 | |
1413 | if (!subChanMixed && opensubfile(GetIsoFile()) == 0) { | |
0e178648 | 1414 | strcat(image_str, "[+sub]"); |
ef79bbde | 1415 | } |
ae4e7dc9 | 1416 | if (opensbifile(GetIsoFile()) == 0) { |
0e178648 | 1417 | strcat(image_str, "[+sbi]"); |
ae4e7dc9 | 1418 | } |
ef79bbde | 1419 | |
c9e5423e | 1420 | // maybe user selected metadata file instead of main .bin .. |
689e0447 | 1421 | bin_filename = GetIsoFile(); |
34ee3480 | 1422 | if (cdHandle && size_main < 2352 * 0x10) { |
c9e5423e | 1423 | static const char *exts[] = { ".bin", ".BIN", ".img", ".IMG" }; |
689e0447 | 1424 | FILE *tmpf = NULL; |
c9e5423e | 1425 | size_t i; |
689e0447 | 1426 | char *p; |
c9e5423e | 1427 | |
689e0447 | 1428 | strncpy(alt_bin_filename, bin_filename, sizeof(alt_bin_filename)); |
1429 | alt_bin_filename[MAXPATHLEN - 1] = '\0'; | |
1430 | if (strlen(alt_bin_filename) >= 4) { | |
1431 | p = alt_bin_filename + strlen(alt_bin_filename) - 4; | |
c9e5423e | 1432 | for (i = 0; i < sizeof(exts) / sizeof(exts[0]); i++) { |
1433 | strcpy(p, exts[i]); | |
689e0447 | 1434 | tmpf = fopen(alt_bin_filename, "rb"); |
1435 | if (tmpf != NULL) | |
c9e5423e | 1436 | break; |
c9e5423e | 1437 | } |
1438 | } | |
689e0447 | 1439 | if (tmpf != NULL) { |
1440 | bin_filename = alt_bin_filename; | |
1441 | fclose(cdHandle); | |
1442 | cdHandle = tmpf; | |
34ee3480 | 1443 | size_main = get_size(cdHandle); |
689e0447 | 1444 | } |
c9e5423e | 1445 | } |
1446 | ||
1447 | // guess whether it is mode1/2048 | |
34ee3480 | 1448 | if (cdHandle && cdimg_read_func == cdread_normal && size_main % 2048 == 0) { |
9a92bffb | 1449 | unsigned int modeTest = 0; |
0e178648 | 1450 | if (!fread(&modeTest, sizeof(modeTest), 1, cdHandle)) { |
0e178648 | 1451 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); |
0e178648 | 1452 | } |
9a92bffb | 1453 | if (SWAP32(modeTest) != 0xffffff00) { |
0e178648 | 1454 | strcat(image_str, "[2048]"); |
9a92bffb | 1455 | isMode1ISO = TRUE; |
1456 | } | |
1457 | } | |
9a92bffb | 1458 | |
0e178648 | 1459 | SysPrintf("%s.\n", image_str); |
ef79bbde P |
1460 | |
1461 | PrintTracks(); | |
1462 | ||
05f19a3e | 1463 | if (subChanMixed && cdimg_read_func == cdread_normal) { |
9a92bffb | 1464 | cdimg_read_func = cdread_sub_mixed; |
752c1c85 | 1465 | cdimg_read_sub_func = cdread_sub_sub_mixed; |
1466 | } | |
1467 | else if (isMode1ISO) { | |
9a92bffb | 1468 | cdimg_read_func = cdread_2048; |
752c1c85 | 1469 | cdimg_read_sub_func = NULL; |
1470 | } | |
9a92bffb | 1471 | |
ef79bbde P |
1472 | return 0; |
1473 | } | |
1474 | ||
1475 | static long CALLBACK ISOclose(void) { | |
38b8102c | 1476 | int i; |
1477 | ||
ef79bbde P |
1478 | if (cdHandle != NULL) { |
1479 | fclose(cdHandle); | |
1480 | cdHandle = NULL; | |
1481 | } | |
1482 | if (subHandle != NULL) { | |
1483 | fclose(subHandle); | |
1484 | subHandle = NULL; | |
1485 | } | |
38b8102c | 1486 | cddaHandle = NULL; |
1487 | ||
9a92bffb | 1488 | if (compr_img != NULL) { |
1489 | free(compr_img->index_table); | |
1490 | free(compr_img); | |
1491 | compr_img = NULL; | |
1492 | } | |
00f0670c | 1493 | |
1494 | #ifdef HAVE_CHD | |
1495 | if (chd_img != NULL) { | |
1496 | chd_close(chd_img->chd); | |
1497 | free(chd_img->buffer); | |
1498 | free(chd_img); | |
1499 | chd_img = NULL; | |
1500 | } | |
1501 | #endif | |
9a92bffb | 1502 | |
38b8102c | 1503 | for (i = 1; i <= numtracks; i++) { |
1504 | if (ti[i].handle != NULL) { | |
1505 | fclose(ti[i].handle); | |
1506 | ti[i].handle = NULL; | |
1507 | } | |
1508 | } | |
1509 | numtracks = 0; | |
c0ee7ac6 | 1510 | ti[1].type = 0; |
ae4e7dc9 | 1511 | UnloadSBI(); |
38b8102c | 1512 | |
c0ee7ac6 | 1513 | memset(cdbuffer, 0, sizeof(cdbuffer)); |
1514 | CDR_getBuffer = ISOgetBuffer; | |
1515 | ||
38b8102c | 1516 | return 0; |
1517 | } | |
1518 | ||
1519 | static long CALLBACK ISOinit(void) { | |
1520 | assert(cdHandle == NULL); | |
1521 | assert(subHandle == NULL); | |
1522 | ||
1523 | return 0; // do nothing | |
1524 | } | |
1525 | ||
1526 | static long CALLBACK ISOshutdown(void) { | |
1527 | ISOclose(); | |
ef79bbde P |
1528 | return 0; |
1529 | } | |
1530 | ||
1531 | // return Starting and Ending Track | |
1532 | // buffer: | |
1533 | // byte 0 - start track | |
1534 | // byte 1 - end track | |
1535 | static long CALLBACK ISOgetTN(unsigned char *buffer) { | |
1536 | buffer[0] = 1; | |
1537 | ||
1538 | if (numtracks > 0) { | |
1539 | buffer[1] = numtracks; | |
1540 | } | |
1541 | else { | |
1542 | buffer[1] = 1; | |
1543 | } | |
1544 | ||
1545 | return 0; | |
1546 | } | |
1547 | ||
1548 | // return Track Time | |
1549 | // buffer: | |
1550 | // byte 0 - frame | |
1551 | // byte 1 - second | |
1552 | // byte 2 - minute | |
1553 | static long CALLBACK ISOgetTD(unsigned char track, unsigned char *buffer) { | |
858ad511 | 1554 | if (track == 0) { |
858ad511 | 1555 | unsigned int sect; |
1556 | unsigned char time[3]; | |
1557 | sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length); | |
ab948f7e | 1558 | sec2msf(sect, (char *)time); |
858ad511 | 1559 | buffer[2] = time[0]; |
1560 | buffer[1] = time[1]; | |
1561 | buffer[0] = time[2]; | |
1562 | } | |
1563 | else if (numtracks > 0 && track <= numtracks) { | |
ef79bbde P |
1564 | buffer[2] = ti[track].start[0]; |
1565 | buffer[1] = ti[track].start[1]; | |
1566 | buffer[0] = ti[track].start[2]; | |
1567 | } | |
1568 | else { | |
1569 | buffer[2] = 0; | |
1570 | buffer[1] = 2; | |
1571 | buffer[0] = 0; | |
1572 | } | |
1573 | ||
1574 | return 0; | |
1575 | } | |
1576 | ||
1577 | // decode 'raw' subchannel data ripped by cdrdao | |
1578 | static void DecodeRawSubData(void) { | |
1579 | unsigned char subQData[12]; | |
1580 | int i; | |
1581 | ||
1582 | memset(subQData, 0, sizeof(subQData)); | |
1583 | ||
1584 | for (i = 0; i < 8 * 12; i++) { | |
1585 | if (subbuffer[i] & (1 << 6)) { // only subchannel Q is needed | |
1586 | subQData[i >> 3] |= (1 << (7 - (i & 7))); | |
1587 | } | |
1588 | } | |
1589 | ||
1590 | memcpy(&subbuffer[12], subQData, 12); | |
1591 | } | |
1592 | ||
1593 | // read track | |
1594 | // time: byte 0 - minute; byte 1 - second; byte 2 - frame | |
1595 | // uses bcd format | |
c9c7a925 | 1596 | static boolean CALLBACK ISOreadTrack(unsigned char *time) { |
19c03d80 | 1597 | int sector = MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])); |
c0ee7ac6 | 1598 | long ret; |
19c03d80 | 1599 | |
34ee3480 | 1600 | if (!cdHandle && !chd_img) |
c9c7a925 | 1601 | return 0; |
ef79bbde | 1602 | |
752c1c85 | 1603 | if (pregapOffset && sector >= pregapOffset) |
1604 | sector -= 2 * 75; | |
8aa91443 | 1605 | |
c0ee7ac6 | 1606 | ret = cdimg_read_func(cdHandle, 0, cdbuffer, sector); |
e0f25b64 | 1607 | if (ret < 12*2 + 2048) |
c9c7a925 | 1608 | return 0; |
ef79bbde | 1609 | |
c9c7a925 | 1610 | return 1; |
ef79bbde P |
1611 | } |
1612 | ||
ef79bbde P |
1613 | // plays cdda audio |
1614 | // sector: byte 0 - minute; byte 1 - second; byte 2 - frame | |
1615 | // does NOT uses bcd format | |
1616 | static long CALLBACK ISOplay(unsigned char *time) { | |
ef79bbde P |
1617 | return 0; |
1618 | } | |
1619 | ||
1620 | // stops cdda audio | |
1621 | static long CALLBACK ISOstop(void) { | |
ef79bbde P |
1622 | return 0; |
1623 | } | |
1624 | ||
1625 | // gets subchannel data | |
752c1c85 | 1626 | static unsigned char* CALLBACK ISOgetBufferSub(int sector) { |
1627 | if (pregapOffset && sector >= pregapOffset) { | |
1628 | sector -= 2 * 75; | |
1629 | if (sector < pregapOffset) // ? | |
1630 | return NULL; | |
ef79bbde P |
1631 | } |
1632 | ||
752c1c85 | 1633 | if (cdimg_read_sub_func != NULL) { |
1634 | if (cdimg_read_sub_func(cdHandle, sector) != SUB_FRAMESIZE) | |
1635 | return NULL; | |
1636 | } | |
1637 | else if (subHandle != NULL) { | |
34ee3480 | 1638 | if (fseeko(subHandle, sector * SUB_FRAMESIZE, SEEK_SET)) |
752c1c85 | 1639 | return NULL; |
1640 | if (fread(subbuffer, 1, SUB_FRAMESIZE, subHandle) != SUB_FRAMESIZE) | |
1641 | return NULL; | |
1642 | } | |
1643 | else { | |
1644 | return NULL; | |
1645 | } | |
1646 | ||
1647 | if (subChanRaw) DecodeRawSubData(); | |
1648 | return subbuffer; | |
ef79bbde P |
1649 | } |
1650 | ||
1651 | static long CALLBACK ISOgetStatus(struct CdrStat *stat) { | |
ef79bbde | 1652 | CDR__getStatus(stat); |
deebc67f | 1653 | |
2f59faba | 1654 | // BIOS - boot ID (CD type) |
1655 | stat->Type = ti[1].type; | |
deebc67f | 1656 | |
1657 | return 0; | |
1658 | } | |
1659 | ||
1660 | // read CDDA sector into buffer | |
1661 | long CALLBACK ISOreadCDDA(unsigned char m, unsigned char s, unsigned char f, unsigned char *buffer) { | |
1662 | unsigned char msf[3] = {m, s, f}; | |
34ee3480 | 1663 | unsigned int track, track_start = 0; |
1664 | FILE *handle = cdHandle; | |
2f59faba | 1665 | unsigned int cddaCurPos; |
deebc67f | 1666 | int ret; |
1667 | ||
1668 | cddaCurPos = msf2sec((char *)msf); | |
1669 | ||
1670 | // find current track index | |
1671 | for (track = numtracks; ; track--) { | |
1672 | track_start = msf2sec(ti[track].start); | |
1673 | if (track_start <= cddaCurPos) | |
1674 | break; | |
1675 | if (track == 1) | |
1676 | break; | |
1677 | } | |
1678 | ||
1679 | // data tracks play silent | |
1680 | if (ti[track].type != CDDA) { | |
1681 | memset(buffer, 0, CD_FRAMESIZE_RAW); | |
1682 | return 0; | |
1683 | } | |
1684 | ||
deebc67f | 1685 | if (multifile) { |
1686 | // find the file that contains this track | |
34ee3480 | 1687 | unsigned int file; |
1688 | for (file = track; file > 1; file--) { | |
1689 | if (ti[file].handle != NULL) { | |
1690 | handle = ti[file].handle; | |
deebc67f | 1691 | break; |
34ee3480 | 1692 | } |
1693 | } | |
1694 | } | |
f0d80aa4 | 1695 | if (!handle && !chd_img) { |
34ee3480 | 1696 | memset(buffer, 0, CD_FRAMESIZE_RAW); |
1697 | return -1; | |
ef79bbde P |
1698 | } |
1699 | ||
34ee3480 | 1700 | ret = cdimg_read_func(handle, ti[track].start_offset, |
deebc67f | 1701 | buffer, cddaCurPos - track_start); |
1702 | if (ret != CD_FRAMESIZE_RAW) { | |
1703 | memset(buffer, 0, CD_FRAMESIZE_RAW); | |
1704 | return -1; | |
1705 | } | |
1706 | ||
1707 | if (cddaBigEndian) { | |
1708 | int i; | |
1709 | unsigned char tmp; | |
1710 | ||
1711 | for (i = 0; i < CD_FRAMESIZE_RAW / 2; i++) { | |
1712 | tmp = buffer[i * 2]; | |
1713 | buffer[i * 2] = buffer[i * 2 + 1]; | |
1714 | buffer[i * 2 + 1] = tmp; | |
1715 | } | |
1716 | } | |
858ad511 | 1717 | |
ef79bbde P |
1718 | return 0; |
1719 | } | |
1720 | ||
1721 | void cdrIsoInit(void) { | |
1722 | CDR_init = ISOinit; | |
1723 | CDR_shutdown = ISOshutdown; | |
1724 | CDR_open = ISOopen; | |
1725 | CDR_close = ISOclose; | |
1726 | CDR_getTN = ISOgetTN; | |
1727 | CDR_getTD = ISOgetTD; | |
1728 | CDR_readTrack = ISOreadTrack; | |
1729 | CDR_getBuffer = ISOgetBuffer; | |
1730 | CDR_play = ISOplay; | |
1731 | CDR_stop = ISOstop; | |
1732 | CDR_getBufferSub = ISOgetBufferSub; | |
1733 | CDR_getStatus = ISOgetStatus; | |
deebc67f | 1734 | CDR_readCDDA = ISOreadCDDA; |
ef79bbde P |
1735 | |
1736 | CDR_getDriveLetter = CDR__getDriveLetter; | |
1737 | CDR_configure = CDR__configure; | |
1738 | CDR_test = CDR__test; | |
1739 | CDR_about = CDR__about; | |
1740 | CDR_setfilename = CDR__setfilename; | |
1741 | ||
1742 | numtracks = 0; | |
1743 | } | |
1744 | ||
1745 | int cdrIsoActive(void) { | |
34ee3480 | 1746 | return (cdHandle || chd_img); |
ef79bbde | 1747 | } |