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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 | 27 | |
f9fb1cf7 | 28 | #include <errno.h> |
29 | #include <zlib.h> | |
b0ec2e6d | 30 | #ifdef HAVE_CHD |
ce188d4d | 31 | #include <chd.h> |
b0ec2e6d | 32 | #endif |
f9fb1cf7 | 33 | |
ef79bbde | 34 | #ifdef _WIN32 |
003cfc63 | 35 | #define WIN32_LEAN_AND_MEAN |
ef79bbde P |
36 | #include <process.h> |
37 | #include <windows.h> | |
deebc67f | 38 | #define strcasecmp _stricmp |
ef79bbde P |
39 | #else |
40 | #include <pthread.h> | |
41 | #include <sys/time.h> | |
349f7d81 | 42 | #include <unistd.h> |
ef79bbde P |
43 | #endif |
44 | ||
9f47c8ed | 45 | #ifndef _WIN32 |
46 | // to enable the USE_READ_THREAD code, fix: | |
47 | // - https://github.com/notaz/pcsx_rearmed/issues/257 | |
48 | // - ISOgetBufferSub to not race with async code | |
49 | //#define USE_READ_THREAD | |
50 | #endif | |
51 | ||
226a5691 | 52 | #ifdef USE_LIBRETRO_VFS |
53 | #include <streams/file_stream_transforms.h> | |
54 | #undef fseeko | |
55 | #undef ftello | |
56 | #define ftello rftell | |
57 | #define fseeko rfseek | |
58 | #endif | |
9361a5aa | 59 | |
cc376814 | 60 | #define OFF_T_MSB ((off_t)1 << (sizeof(off_t) * 8 - 1)) |
61 | ||
0c2871a7 | 62 | unsigned int cdrIsoMultidiskCount; |
63 | unsigned int cdrIsoMultidiskSelect; | |
64 | ||
ef79bbde P |
65 | static FILE *cdHandle = NULL; |
66 | static FILE *cddaHandle = NULL; | |
67 | static FILE *subHandle = NULL; | |
68 | ||
69 | static boolean subChanMixed = FALSE; | |
70 | static boolean subChanRaw = FALSE; | |
71 | ||
deebc67f | 72 | static boolean multifile = FALSE; |
73 | ||
81abe4d5 | 74 | static unsigned char cdbuffer[CD_FRAMESIZE_RAW]; |
ef79bbde P |
75 | static unsigned char subbuffer[SUB_FRAMESIZE]; |
76 | ||
38b8102c | 77 | static boolean playing = FALSE; |
ef79bbde | 78 | static boolean cddaBigEndian = FALSE; |
8aa91443 | 79 | /* Frame offset into CD image where pregap data would be found if it was there. |
80 | * If a game seeks there we must *not* return subchannel data since it's | |
81 | * not in the CD image, so that cdrom code can fake subchannel data instead. | |
82 | * XXX: there could be multiple pregaps but PSX dumps only have one? */ | |
83 | static unsigned int pregapOffset; | |
ef79bbde | 84 | |
5b568098 | 85 | static unsigned int cddaCurPos; |
deebc67f | 86 | |
9a92bffb | 87 | // compressed image stuff |
88 | static struct { | |
89 | unsigned char buff_raw[16][CD_FRAMESIZE_RAW]; | |
90 | unsigned char buff_compressed[CD_FRAMESIZE_RAW * 16 + 100]; | |
cc376814 | 91 | off_t *index_table; |
9a92bffb | 92 | unsigned int index_len; |
0877957a | 93 | unsigned int block_shift; |
9a92bffb | 94 | unsigned int current_block; |
95 | unsigned int sector_in_blk; | |
96 | } *compr_img; | |
97 | ||
b0ec2e6d | 98 | #ifdef HAVE_CHD |
ce188d4d | 99 | static struct { |
aeb82099 | 100 | unsigned char *buffer; |
ce188d4d | 101 | chd_file* chd; |
102 | const chd_header* header; | |
103 | unsigned int sectors_per_hunk; | |
aeb82099 | 104 | unsigned int current_hunk[2]; |
105 | unsigned int current_buffer; | |
ce188d4d | 106 | unsigned int sector_in_hunk; |
107 | } *chd_img; | |
b0ec2e6d | 108 | #endif |
ce188d4d | 109 | |
0eacae49 | 110 | static int (*cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector); |
111 | static int (*cdimg_read_sub_func)(FILE *f, int sector); | |
9a92bffb | 112 | |
ef79bbde P |
113 | char* CALLBACK CDR__getDriveLetter(void); |
114 | long CALLBACK CDR__configure(void); | |
115 | long CALLBACK CDR__test(void); | |
116 | void CALLBACK CDR__about(void); | |
117 | long CALLBACK CDR__setfilename(char *filename); | |
118 | long CALLBACK CDR__getStatus(struct CdrStat *stat); | |
119 | ||
19c03d80 | 120 | static void DecodeRawSubData(void); |
121 | ||
ef79bbde | 122 | struct trackinfo { |
deebc67f | 123 | enum {DATA=1, CDDA} type; |
ef79bbde P |
124 | char start[3]; // MSF-format |
125 | char length[3]; // MSF-format | |
38b8102c | 126 | FILE *handle; // for multi-track images CDDA |
f02c57ea | 127 | unsigned int start_offset; // byte offset from start of above file (chd: sector offset) |
ef79bbde P |
128 | }; |
129 | ||
130 | #define MAXTRACKS 100 /* How many tracks can a CD hold? */ | |
131 | ||
132 | static int numtracks = 0; | |
133 | static struct trackinfo ti[MAXTRACKS]; | |
134 | ||
135 | // get a sector from a msf-array | |
136 | static unsigned int msf2sec(char *msf) { | |
137 | return ((msf[0] * 60 + msf[1]) * 75) + msf[2]; | |
138 | } | |
139 | ||
140 | static void sec2msf(unsigned int s, char *msf) { | |
141 | msf[0] = s / 75 / 60; | |
142 | s = s - msf[0] * 75 * 60; | |
143 | msf[1] = s / 75; | |
144 | s = s - msf[1] * 75; | |
145 | msf[2] = s; | |
146 | } | |
147 | ||
148 | // divide a string of xx:yy:zz into m, s, f | |
149 | static void tok2msf(char *time, char *msf) { | |
150 | char *token; | |
151 | ||
152 | token = strtok(time, ":"); | |
153 | if (token) { | |
154 | msf[0] = atoi(token); | |
155 | } | |
156 | else { | |
157 | msf[0] = 0; | |
158 | } | |
159 | ||
160 | token = strtok(NULL, ":"); | |
161 | if (token) { | |
162 | msf[1] = atoi(token); | |
163 | } | |
164 | else { | |
165 | msf[1] = 0; | |
166 | } | |
167 | ||
168 | token = strtok(NULL, ":"); | |
169 | if (token) { | |
170 | msf[2] = atoi(token); | |
171 | } | |
172 | else { | |
173 | msf[2] = 0; | |
174 | } | |
175 | } | |
176 | ||
ef79bbde P |
177 | // this function tries to get the .toc file of the given .bin |
178 | // the necessary data is put into the ti (trackinformation)-array | |
179 | static int parsetoc(const char *isofile) { | |
180 | char tocname[MAXPATHLEN]; | |
181 | FILE *fi; | |
e999be41 | 182 | char linebuf[256], tmp[256], name[256]; |
ef79bbde P |
183 | char *token; |
184 | char time[20], time2[20]; | |
e999be41 | 185 | unsigned int t, sector_offs, sector_size; |
186 | unsigned int current_zero_gap = 0; | |
ef79bbde P |
187 | |
188 | numtracks = 0; | |
189 | ||
190 | // copy name of the iso and change extension from .bin to .toc | |
191 | strncpy(tocname, isofile, sizeof(tocname)); | |
192 | tocname[MAXPATHLEN - 1] = '\0'; | |
193 | if (strlen(tocname) >= 4) { | |
194 | strcpy(tocname + strlen(tocname) - 4, ".toc"); | |
195 | } | |
196 | else { | |
197 | return -1; | |
198 | } | |
199 | ||
226a5691 | 200 | if ((fi = fopen(tocname, "r")) == NULL) { |
ef79bbde P |
201 | // try changing extension to .cue (to satisfy some stupid tutorials) |
202 | strcpy(tocname + strlen(tocname) - 4, ".cue"); | |
226a5691 | 203 | if ((fi = fopen(tocname, "r")) == NULL) { |
ef79bbde P |
204 | // if filename is image.toc.bin, try removing .bin (for Brasero) |
205 | strcpy(tocname, isofile); | |
206 | t = strlen(tocname); | |
207 | if (t >= 8 && strcmp(tocname + t - 8, ".toc.bin") == 0) { | |
208 | tocname[t - 4] = '\0'; | |
226a5691 | 209 | if ((fi = fopen(tocname, "r")) == NULL) { |
ef79bbde P |
210 | return -1; |
211 | } | |
212 | } | |
213 | else { | |
214 | return -1; | |
215 | } | |
216 | } | |
92f43ab0 | 217 | // check if it's really a TOC named as a .cue |
9361a5aa EC |
218 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
219 | token = strtok(linebuf, " "); | |
220 | if (token && strncmp(token, "CD", 2) != 0 && strcmp(token, "CATALOG") != 0) { | |
221 | fclose(fi); | |
222 | return -1; | |
223 | } | |
92f43ab0 | 224 | } |
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 P |
329 | FILE *fi; |
330 | char *token; | |
331 | char time[20]; | |
332 | char *tmp; | |
19c03d80 | 333 | char linebuf[256], tmpb[256], dummy[256]; |
38b8102c | 334 | unsigned int incue_max_len; |
77160d47 | 335 | unsigned int t, file_len, mode, sector_offs; |
336 | unsigned int sector_size = 2352; | |
ef79bbde P |
337 | |
338 | numtracks = 0; | |
339 | ||
340 | // copy name of the iso and change extension from .bin to .cue | |
341 | strncpy(cuename, isofile, sizeof(cuename)); | |
342 | cuename[MAXPATHLEN - 1] = '\0'; | |
343 | if (strlen(cuename) >= 4) { | |
2cc221eb | 344 | // If 'isofile' is a '.cd<X>' file, use it as a .cue file |
345 | // and don't try to search the additional .cue file | |
346 | if (strncasecmp(cuename + strlen(cuename) - 4, ".cd", 3) != 0 ) | |
347 | strcpy(cuename + strlen(cuename) - 4, ".cue"); | |
ef79bbde P |
348 | } |
349 | else { | |
350 | return -1; | |
351 | } | |
352 | ||
226a5691 | 353 | if ((fi = fopen(cuename, "r")) == NULL) { |
ef79bbde P |
354 | return -1; |
355 | } | |
356 | ||
357 | // Some stupid tutorials wrongly tell users to use cdrdao to rip a | |
358 | // "bin/cue" image, which is in fact a "bin/toc" image. So let's check | |
359 | // that... | |
360 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
361 | if (!strncmp(linebuf, "CD_ROM_XA", 9)) { | |
362 | // Don't proceed further, as this is actually a .toc file rather | |
363 | // than a .cue file. | |
364 | fclose(fi); | |
365 | return parsetoc(isofile); | |
366 | } | |
367 | fseek(fi, 0, SEEK_SET); | |
368 | } | |
369 | ||
38b8102c | 370 | // build a path for files referenced in .cue |
371 | strncpy(filepath, cuename, sizeof(filepath)); | |
22bbabf6 | 372 | tmp = strrchr(filepath, '/'); |
38b8102c | 373 | if (tmp == NULL) |
22bbabf6 | 374 | tmp = strrchr(filepath, '\\'); |
375 | if (tmp != NULL) | |
376 | tmp++; | |
377 | else | |
38b8102c | 378 | tmp = filepath; |
379 | *tmp = 0; | |
380 | filepath[sizeof(filepath) - 1] = 0; | |
381 | incue_fname = tmp; | |
382 | incue_max_len = sizeof(filepath) - (tmp - filepath) - 1; | |
383 | ||
ef79bbde P |
384 | memset(&ti, 0, sizeof(ti)); |
385 | ||
19c03d80 | 386 | file_len = 0; |
387 | sector_offs = 2 * 75; | |
388 | ||
ef79bbde P |
389 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
390 | strncpy(dummy, linebuf, sizeof(linebuf)); | |
391 | token = strtok(dummy, " "); | |
392 | ||
393 | if (token == NULL) { | |
394 | continue; | |
395 | } | |
396 | ||
19c03d80 | 397 | if (!strcmp(token, "TRACK")) { |
ef79bbde P |
398 | numtracks++; |
399 | ||
77160d47 | 400 | sector_size = 0; |
ef79bbde P |
401 | if (strstr(linebuf, "AUDIO") != NULL) { |
402 | ti[numtracks].type = CDDA; | |
77160d47 | 403 | sector_size = 2352; |
ef79bbde | 404 | } |
77160d47 | 405 | else if (sscanf(linebuf, " TRACK %u MODE%u/%u", &t, &mode, §or_size) == 3) |
ef79bbde | 406 | ti[numtracks].type = DATA; |
77160d47 | 407 | else { |
408 | SysPrintf(".cue: failed to parse TRACK\n"); | |
409 | ti[numtracks].type = numtracks == 1 ? DATA : CDDA; | |
ef79bbde | 410 | } |
77160d47 | 411 | if (sector_size == 0) |
412 | sector_size = 2352; | |
ef79bbde P |
413 | } |
414 | else if (!strcmp(token, "INDEX")) { | |
77160d47 | 415 | if (sscanf(linebuf, " INDEX %02d %8s", &t, time) != 2) |
416 | SysPrintf(".cue: failed to parse INDEX\n"); | |
19c03d80 | 417 | tok2msf(time, (char *)&ti[numtracks].start); |
ef79bbde | 418 | |
19c03d80 | 419 | t = msf2sec(ti[numtracks].start); |
77160d47 | 420 | ti[numtracks].start_offset = t * sector_size; |
19c03d80 | 421 | t += sector_offs; |
ef79bbde | 422 | sec2msf(t, ti[numtracks].start); |
19c03d80 | 423 | |
424 | // default track length to file length | |
77160d47 | 425 | t = file_len - ti[numtracks].start_offset / sector_size; |
19c03d80 | 426 | sec2msf(t, ti[numtracks].length); |
427 | ||
428 | if (numtracks > 1 && ti[numtracks].handle == NULL) { | |
429 | // this track uses the same file as the last, | |
430 | // start of this track is last track's end | |
431 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
432 | sec2msf(t, ti[numtracks - 1].length); | |
38b8102c | 433 | } |
8aa91443 | 434 | if (numtracks > 1 && pregapOffset == -1) |
77160d47 | 435 | pregapOffset = ti[numtracks].start_offset / sector_size; |
19c03d80 | 436 | } |
437 | else if (!strcmp(token, "PREGAP")) { | |
438 | if (sscanf(linebuf, " PREGAP %8s", time) == 1) { | |
439 | tok2msf(time, dummy); | |
440 | sector_offs += msf2sec(dummy); | |
38b8102c | 441 | } |
8aa91443 | 442 | pregapOffset = -1; // mark to fill track start_offset |
19c03d80 | 443 | } |
444 | else if (!strcmp(token, "FILE")) { | |
9a9bcd78 | 445 | t = sscanf(linebuf, " FILE \"%255[^\"]\"", tmpb); |
385c023b | 446 | if (t != 1) |
9a9bcd78 | 447 | sscanf(linebuf, " FILE %255s", tmpb); |
19c03d80 | 448 | |
6f4557bf | 449 | tmp = strrchr(tmpb, '\\'); |
450 | if (tmp == NULL) | |
451 | tmp = strrchr(tmpb, '/'); | |
452 | if (tmp != NULL) | |
453 | tmp++; | |
454 | else | |
455 | tmp = tmpb; | |
456 | strncpy(incue_fname, tmp, incue_max_len); | |
226a5691 | 457 | ti[numtracks + 1].handle = fopen(filepath, "rb"); |
ef79bbde | 458 | |
19c03d80 | 459 | // update global offset if this is not first file in this .cue |
deebc67f | 460 | if (numtracks + 1 > 1) { |
461 | multifile = 1; | |
19c03d80 | 462 | sector_offs += file_len; |
deebc67f | 463 | } |
19c03d80 | 464 | |
465 | file_len = 0; | |
38b8102c | 466 | if (ti[numtracks + 1].handle == NULL) { |
19c03d80 | 467 | SysPrintf(_("\ncould not open: %s\n"), filepath); |
468 | continue; | |
38b8102c | 469 | } |
19c03d80 | 470 | fseek(ti[numtracks + 1].handle, 0, SEEK_END); |
471 | file_len = ftell(ti[numtracks + 1].handle) / 2352; | |
472 | ||
473 | if (numtracks == 0 && strlen(isofile) >= 4 && | |
2cc221eb | 474 | (strcmp(isofile + strlen(isofile) - 4, ".cue") == 0 || |
475 | strncasecmp(isofile + strlen(isofile) - 4, ".cd", 3) == 0)) { | |
476 | // user selected .cue/.cdX as image file, use it's data track instead | |
38b8102c | 477 | fclose(cdHandle); |
226a5691 | 478 | cdHandle = fopen(filepath, "rb"); |
ef79bbde P |
479 | } |
480 | } | |
481 | } | |
482 | ||
483 | fclose(fi); | |
484 | ||
2cc221eb | 485 | // if there are no tracks detected, then it's not a cue file |
486 | if (!numtracks) | |
487 | return -1; | |
488 | ||
ef79bbde P |
489 | return 0; |
490 | } | |
491 | ||
492 | // this function tries to get the .ccd file of the given .img | |
493 | // the necessary data is put into the ti (trackinformation)-array | |
494 | static int parseccd(const char *isofile) { | |
495 | char ccdname[MAXPATHLEN]; | |
496 | FILE *fi; | |
497 | char linebuf[256]; | |
498 | unsigned int t; | |
499 | ||
500 | numtracks = 0; | |
501 | ||
502 | // copy name of the iso and change extension from .img to .ccd | |
503 | strncpy(ccdname, isofile, sizeof(ccdname)); | |
504 | ccdname[MAXPATHLEN - 1] = '\0'; | |
505 | if (strlen(ccdname) >= 4) { | |
506 | strcpy(ccdname + strlen(ccdname) - 4, ".ccd"); | |
507 | } | |
508 | else { | |
509 | return -1; | |
510 | } | |
511 | ||
226a5691 | 512 | if ((fi = fopen(ccdname, "r")) == NULL) { |
ef79bbde P |
513 | return -1; |
514 | } | |
515 | ||
516 | memset(&ti, 0, sizeof(ti)); | |
517 | ||
518 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
519 | if (!strncmp(linebuf, "[TRACK", 6)){ | |
520 | numtracks++; | |
521 | } | |
522 | else if (!strncmp(linebuf, "MODE=", 5)) { | |
523 | sscanf(linebuf, "MODE=%d", &t); | |
524 | ti[numtracks].type = ((t == 0) ? CDDA : DATA); | |
525 | } | |
526 | else if (!strncmp(linebuf, "INDEX 1=", 8)) { | |
527 | sscanf(linebuf, "INDEX 1=%d", &t); | |
528 | sec2msf(t + 2 * 75, ti[numtracks].start); | |
77160d47 | 529 | ti[numtracks].start_offset = t * 2352; |
ef79bbde P |
530 | |
531 | // If we've already seen another track, this is its end | |
532 | if (numtracks > 1) { | |
533 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
534 | sec2msf(t, ti[numtracks - 1].length); | |
535 | } | |
536 | } | |
537 | } | |
538 | ||
539 | fclose(fi); | |
540 | ||
541 | // Fill out the last track's end based on size | |
542 | if (numtracks >= 1) { | |
543 | fseek(cdHandle, 0, SEEK_END); | |
544 | t = ftell(cdHandle) / 2352 - msf2sec(ti[numtracks].start) + 2 * 75; | |
545 | sec2msf(t, ti[numtracks].length); | |
546 | } | |
547 | ||
548 | return 0; | |
549 | } | |
550 | ||
551 | // this function tries to get the .mds file of the given .mdf | |
552 | // the necessary data is put into the ti (trackinformation)-array | |
553 | static int parsemds(const char *isofile) { | |
554 | char mdsname[MAXPATHLEN]; | |
555 | FILE *fi; | |
556 | unsigned int offset, extra_offset, l, i; | |
557 | unsigned short s; | |
558 | ||
559 | numtracks = 0; | |
560 | ||
561 | // copy name of the iso and change extension from .mdf to .mds | |
562 | strncpy(mdsname, isofile, sizeof(mdsname)); | |
563 | mdsname[MAXPATHLEN - 1] = '\0'; | |
564 | if (strlen(mdsname) >= 4) { | |
565 | strcpy(mdsname + strlen(mdsname) - 4, ".mds"); | |
566 | } | |
567 | else { | |
568 | return -1; | |
569 | } | |
570 | ||
226a5691 | 571 | if ((fi = fopen(mdsname, "rb")) == NULL) { |
ef79bbde P |
572 | return -1; |
573 | } | |
574 | ||
575 | memset(&ti, 0, sizeof(ti)); | |
576 | ||
577 | // check if it's a valid mds file | |
9361a5aa EC |
578 | if (fread(&i, 1, sizeof(i), fi) != sizeof(i)) |
579 | goto fail_io; | |
ef79bbde P |
580 | i = SWAP32(i); |
581 | if (i != 0x4944454D) { | |
582 | // not an valid mds file | |
583 | fclose(fi); | |
584 | return -1; | |
585 | } | |
586 | ||
587 | // get offset to session block | |
588 | fseek(fi, 0x50, SEEK_SET); | |
9361a5aa EC |
589 | if (fread(&offset, 1, sizeof(offset), fi) != sizeof(offset)) |
590 | goto fail_io; | |
ef79bbde P |
591 | offset = SWAP32(offset); |
592 | ||
593 | // get total number of tracks | |
594 | offset += 14; | |
595 | fseek(fi, offset, SEEK_SET); | |
9361a5aa EC |
596 | if (fread(&s, 1, sizeof(s), fi) != sizeof(s)) |
597 | goto fail_io; | |
ef79bbde P |
598 | s = SWAP16(s); |
599 | numtracks = s; | |
600 | ||
601 | // get offset to track blocks | |
602 | fseek(fi, 4, SEEK_CUR); | |
9361a5aa EC |
603 | if (fread(&offset, 1, sizeof(offset), fi) != sizeof(offset)) |
604 | goto fail_io; | |
ef79bbde P |
605 | offset = SWAP32(offset); |
606 | ||
607 | // skip lead-in data | |
608 | while (1) { | |
609 | fseek(fi, offset + 4, SEEK_SET); | |
610 | if (fgetc(fi) < 0xA0) { | |
611 | break; | |
612 | } | |
613 | offset += 0x50; | |
614 | } | |
615 | ||
616 | // check if the image contains mixed subchannel data | |
617 | fseek(fi, offset + 1, SEEK_SET); | |
77160d47 | 618 | subChanMixed = subChanRaw = (fgetc(fi) ? TRUE : FALSE); |
ef79bbde P |
619 | |
620 | // read track data | |
621 | for (i = 1; i <= numtracks; i++) { | |
622 | fseek(fi, offset, SEEK_SET); | |
623 | ||
624 | // get the track type | |
625 | ti[i].type = ((fgetc(fi) == 0xA9) ? CDDA : DATA); | |
626 | fseek(fi, 8, SEEK_CUR); | |
627 | ||
628 | // get the track starting point | |
629 | ti[i].start[0] = fgetc(fi); | |
630 | ti[i].start[1] = fgetc(fi); | |
631 | ti[i].start[2] = fgetc(fi); | |
632 | ||
9361a5aa EC |
633 | if (fread(&extra_offset, 1, sizeof(extra_offset), fi) != sizeof(extra_offset)) |
634 | goto fail_io; | |
ef79bbde P |
635 | extra_offset = SWAP32(extra_offset); |
636 | ||
19c03d80 | 637 | // get track start offset (in .mdf) |
638 | fseek(fi, offset + 0x28, SEEK_SET); | |
9361a5aa EC |
639 | if (fread(&l, 1, sizeof(l), fi) != sizeof(l)) |
640 | goto fail_io; | |
19c03d80 | 641 | l = SWAP32(l); |
77160d47 | 642 | ti[i].start_offset = l; |
19c03d80 | 643 | |
8aa91443 | 644 | // get pregap |
645 | fseek(fi, extra_offset, SEEK_SET); | |
9361a5aa EC |
646 | if (fread(&l, 1, sizeof(l), fi) != sizeof(l)) |
647 | goto fail_io; | |
8aa91443 | 648 | l = SWAP32(l); |
649 | if (l != 0 && i > 1) | |
77160d47 | 650 | pregapOffset = msf2sec(ti[i].start); |
8aa91443 | 651 | |
652 | // get the track length | |
9361a5aa EC |
653 | if (fread(&l, 1, sizeof(l), fi) != sizeof(l)) |
654 | goto fail_io; | |
8aa91443 | 655 | l = SWAP32(l); |
656 | sec2msf(l, ti[i].length); | |
657 | ||
ef79bbde P |
658 | offset += 0x50; |
659 | } | |
ef79bbde P |
660 | fclose(fi); |
661 | return 0; | |
9361a5aa EC |
662 | fail_io: |
663 | #ifndef NDEBUG | |
664 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
665 | #endif | |
666 | fclose(fi); | |
667 | return -1; | |
ef79bbde P |
668 | } |
669 | ||
0877957a | 670 | static int handlepbp(const char *isofile) { |
9a92bffb | 671 | struct { |
672 | unsigned int sig; | |
673 | unsigned int dontcare[8]; | |
674 | unsigned int psar_offs; | |
675 | } pbp_hdr; | |
676 | struct { | |
677 | unsigned char type; | |
678 | unsigned char pad0; | |
679 | unsigned char track; | |
680 | char index0[3]; | |
681 | char pad1; | |
682 | char index1[3]; | |
683 | } toc_entry; | |
684 | struct { | |
685 | unsigned int offset; | |
686 | unsigned int size; | |
687 | unsigned int dontcare[6]; | |
688 | } index_entry; | |
0c2871a7 | 689 | char psar_sig[11]; |
cc376814 | 690 | off_t psisoimg_offs, cdimg_base; |
691 | unsigned int t, cd_length; | |
692 | unsigned int offsettab[8]; | |
58cb1438 | 693 | unsigned int psar_offs, index_entry_size, index_entry_offset; |
9a92bffb | 694 | const char *ext = NULL; |
695 | int i, ret; | |
696 | ||
697 | if (strlen(isofile) >= 4) | |
698 | ext = isofile + strlen(isofile) - 4; | |
699 | if (ext == NULL || (strcmp(ext, ".pbp") != 0 && strcmp(ext, ".PBP") != 0)) | |
700 | return -1; | |
701 | ||
cc376814 | 702 | fseeko(cdHandle, 0, SEEK_SET); |
9726a4af | 703 | |
9a92bffb | 704 | numtracks = 0; |
705 | ||
706 | ret = fread(&pbp_hdr, 1, sizeof(pbp_hdr), cdHandle); | |
707 | if (ret != sizeof(pbp_hdr)) { | |
f29fbd53 | 708 | SysPrintf("failed to read pbp\n"); |
9a92bffb | 709 | goto fail_io; |
710 | } | |
711 | ||
58cb1438 PC |
712 | psar_offs = SWAP32(pbp_hdr.psar_offs); |
713 | ||
714 | ret = fseeko(cdHandle, psar_offs, SEEK_SET); | |
9a92bffb | 715 | if (ret != 0) { |
58cb1438 | 716 | SysPrintf("failed to seek to %x\n", psar_offs); |
9a92bffb | 717 | goto fail_io; |
718 | } | |
719 | ||
58cb1438 | 720 | psisoimg_offs = psar_offs; |
9361a5aa EC |
721 | if (fread(psar_sig, 1, sizeof(psar_sig), cdHandle) != sizeof(psar_sig)) |
722 | goto fail_io; | |
0c2871a7 | 723 | psar_sig[10] = 0; |
724 | if (strcmp(psar_sig, "PSTITLEIMG") == 0) { | |
725 | // multidisk image? | |
58cb1438 | 726 | ret = fseeko(cdHandle, psar_offs + 0x200, SEEK_SET); |
0c2871a7 | 727 | if (ret != 0) { |
58cb1438 | 728 | SysPrintf("failed to seek to %x\n", psar_offs + 0x200); |
0c2871a7 | 729 | goto fail_io; |
730 | } | |
731 | ||
732 | if (fread(&offsettab, 1, sizeof(offsettab), cdHandle) != sizeof(offsettab)) { | |
f29fbd53 | 733 | SysPrintf("failed to read offsettab\n"); |
0c2871a7 | 734 | goto fail_io; |
735 | } | |
736 | ||
737 | for (i = 0; i < sizeof(offsettab) / sizeof(offsettab[0]); i++) { | |
738 | if (offsettab[i] == 0) | |
739 | break; | |
740 | } | |
741 | cdrIsoMultidiskCount = i; | |
742 | if (cdrIsoMultidiskCount == 0) { | |
f29fbd53 | 743 | SysPrintf("multidisk eboot has 0 images?\n"); |
0c2871a7 | 744 | goto fail_io; |
745 | } | |
746 | ||
747 | if (cdrIsoMultidiskSelect >= cdrIsoMultidiskCount) | |
748 | cdrIsoMultidiskSelect = 0; | |
749 | ||
58cb1438 | 750 | psisoimg_offs += SWAP32(offsettab[cdrIsoMultidiskSelect]); |
0c2871a7 | 751 | |
cc376814 | 752 | ret = fseeko(cdHandle, psisoimg_offs, SEEK_SET); |
0c2871a7 | 753 | if (ret != 0) { |
cc376814 | 754 | SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs); |
0c2871a7 | 755 | goto fail_io; |
756 | } | |
757 | ||
9361a5aa EC |
758 | if (fread(psar_sig, 1, sizeof(psar_sig), cdHandle) != sizeof(psar_sig)) |
759 | goto fail_io; | |
0c2871a7 | 760 | psar_sig[10] = 0; |
761 | } | |
762 | ||
763 | if (strcmp(psar_sig, "PSISOIMG00") != 0) { | |
f29fbd53 | 764 | SysPrintf("bad psar_sig: %s\n", psar_sig); |
9a92bffb | 765 | goto fail_io; |
766 | } | |
767 | ||
768 | // seek to TOC | |
cc376814 | 769 | ret = fseeko(cdHandle, psisoimg_offs + 0x800, SEEK_SET); |
9a92bffb | 770 | if (ret != 0) { |
cc376814 | 771 | SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs + 0x800); |
9a92bffb | 772 | goto fail_io; |
773 | } | |
774 | ||
775 | // first 3 entries are special | |
776 | fseek(cdHandle, sizeof(toc_entry), SEEK_CUR); | |
9361a5aa EC |
777 | if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry)) |
778 | goto fail_io; | |
9a92bffb | 779 | numtracks = btoi(toc_entry.index1[0]); |
780 | ||
9361a5aa EC |
781 | if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry)) |
782 | goto fail_io; | |
9a92bffb | 783 | cd_length = btoi(toc_entry.index1[0]) * 60 * 75 + |
784 | btoi(toc_entry.index1[1]) * 75 + btoi(toc_entry.index1[2]); | |
785 | ||
786 | for (i = 1; i <= numtracks; i++) { | |
9361a5aa EC |
787 | if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry)) |
788 | goto fail_io; | |
9a92bffb | 789 | |
790 | ti[i].type = (toc_entry.type == 1) ? CDDA : DATA; | |
791 | ||
792 | ti[i].start_offset = btoi(toc_entry.index0[0]) * 60 * 75 + | |
793 | btoi(toc_entry.index0[1]) * 75 + btoi(toc_entry.index0[2]); | |
77160d47 | 794 | ti[i].start_offset *= 2352; |
9a92bffb | 795 | ti[i].start[0] = btoi(toc_entry.index1[0]); |
796 | ti[i].start[1] = btoi(toc_entry.index1[1]); | |
797 | ti[i].start[2] = btoi(toc_entry.index1[2]); | |
798 | ||
799 | if (i > 1) { | |
800 | t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start); | |
801 | sec2msf(t, ti[i - 1].length); | |
802 | } | |
803 | } | |
77160d47 | 804 | t = cd_length - ti[numtracks].start_offset / 2352; |
9a92bffb | 805 | sec2msf(t, ti[numtracks].length); |
806 | ||
807 | // seek to ISO index | |
cc376814 | 808 | ret = fseeko(cdHandle, psisoimg_offs + 0x4000, SEEK_SET); |
9a92bffb | 809 | if (ret != 0) { |
f29fbd53 | 810 | SysPrintf("failed to seek to ISO index\n"); |
9a92bffb | 811 | goto fail_io; |
812 | } | |
813 | ||
814 | compr_img = calloc(1, sizeof(*compr_img)); | |
815 | if (compr_img == NULL) | |
816 | goto fail_io; | |
817 | ||
0877957a | 818 | compr_img->block_shift = 4; |
9a92bffb | 819 | compr_img->current_block = (unsigned int)-1; |
820 | ||
821 | compr_img->index_len = (0x100000 - 0x4000) / sizeof(index_entry); | |
822 | compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); | |
823 | if (compr_img->index_table == NULL) | |
824 | goto fail_io; | |
825 | ||
0c2871a7 | 826 | cdimg_base = psisoimg_offs + 0x100000; |
9a92bffb | 827 | for (i = 0; i < compr_img->index_len; i++) { |
828 | ret = fread(&index_entry, 1, sizeof(index_entry), cdHandle); | |
829 | if (ret != sizeof(index_entry)) { | |
f29fbd53 | 830 | SysPrintf("failed to read index_entry #%d\n", i); |
9a92bffb | 831 | goto fail_index; |
832 | } | |
833 | ||
58cb1438 PC |
834 | index_entry_size = SWAP32(index_entry.size); |
835 | index_entry_offset = SWAP32(index_entry.offset); | |
836 | ||
837 | if (index_entry_size == 0) | |
9a92bffb | 838 | break; |
839 | ||
58cb1438 | 840 | compr_img->index_table[i] = cdimg_base + index_entry_offset; |
9a92bffb | 841 | } |
58cb1438 | 842 | compr_img->index_table[i] = cdimg_base + index_entry_offset + index_entry_size; |
9a92bffb | 843 | |
844 | return 0; | |
845 | ||
846 | fail_index: | |
847 | free(compr_img->index_table); | |
848 | compr_img->index_table = NULL; | |
9361a5aa EC |
849 | goto done; |
850 | ||
9a92bffb | 851 | fail_io: |
9361a5aa EC |
852 | #ifndef NDEBUG |
853 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
854 | #endif | |
855 | ||
856 | done: | |
0877957a | 857 | if (compr_img != NULL) { |
858 | free(compr_img); | |
859 | compr_img = NULL; | |
860 | } | |
861 | return -1; | |
862 | } | |
863 | ||
864 | static int handlecbin(const char *isofile) { | |
865 | struct | |
866 | { | |
867 | char magic[4]; | |
868 | unsigned int header_size; | |
869 | unsigned long long total_bytes; | |
870 | unsigned int block_size; | |
871 | unsigned char ver; // 1 | |
872 | unsigned char align; | |
873 | unsigned char rsv_06[2]; | |
874 | } ciso_hdr; | |
875 | const char *ext = NULL; | |
cc376814 | 876 | unsigned int *index_table = NULL; |
0c2871a7 | 877 | unsigned int index = 0, plain; |
0877957a | 878 | int i, ret; |
879 | ||
880 | if (strlen(isofile) >= 5) | |
881 | ext = isofile + strlen(isofile) - 5; | |
882 | if (ext == NULL || (strcasecmp(ext + 1, ".cbn") != 0 && strcasecmp(ext, ".cbin") != 0)) | |
883 | return -1; | |
884 | ||
9726a4af | 885 | fseek(cdHandle, 0, SEEK_SET); |
886 | ||
0877957a | 887 | ret = fread(&ciso_hdr, 1, sizeof(ciso_hdr), cdHandle); |
888 | if (ret != sizeof(ciso_hdr)) { | |
f29fbd53 | 889 | SysPrintf("failed to read ciso header\n"); |
0877957a | 890 | return -1; |
891 | } | |
892 | ||
893 | if (strncmp(ciso_hdr.magic, "CISO", 4) != 0 || ciso_hdr.total_bytes <= 0 || ciso_hdr.block_size <= 0) { | |
f29fbd53 | 894 | SysPrintf("bad ciso header\n"); |
0877957a | 895 | return -1; |
896 | } | |
897 | if (ciso_hdr.header_size != 0 && ciso_hdr.header_size != sizeof(ciso_hdr)) { | |
cc376814 | 898 | ret = fseeko(cdHandle, ciso_hdr.header_size, SEEK_SET); |
0877957a | 899 | if (ret != 0) { |
f29fbd53 | 900 | SysPrintf("failed to seek to %x\n", ciso_hdr.header_size); |
0877957a | 901 | return -1; |
902 | } | |
903 | } | |
904 | ||
905 | compr_img = calloc(1, sizeof(*compr_img)); | |
906 | if (compr_img == NULL) | |
907 | goto fail_io; | |
908 | ||
909 | compr_img->block_shift = 0; | |
910 | compr_img->current_block = (unsigned int)-1; | |
911 | ||
912 | compr_img->index_len = ciso_hdr.total_bytes / ciso_hdr.block_size; | |
cc376814 | 913 | index_table = malloc((compr_img->index_len + 1) * sizeof(index_table[0])); |
914 | if (index_table == NULL) | |
0877957a | 915 | goto fail_io; |
916 | ||
cc376814 | 917 | ret = fread(index_table, sizeof(index_table[0]), compr_img->index_len, cdHandle); |
0877957a | 918 | if (ret != compr_img->index_len) { |
f29fbd53 | 919 | SysPrintf("failed to read index table\n"); |
0877957a | 920 | goto fail_index; |
921 | } | |
922 | ||
cc376814 | 923 | compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); |
924 | if (compr_img->index_table == NULL) | |
925 | goto fail_index; | |
926 | ||
0877957a | 927 | for (i = 0; i < compr_img->index_len + 1; i++) { |
cc376814 | 928 | index = index_table[i]; |
0877957a | 929 | plain = index & 0x80000000; |
930 | index &= 0x7fffffff; | |
cc376814 | 931 | compr_img->index_table[i] = (off_t)index << ciso_hdr.align; |
932 | if (plain) | |
933 | compr_img->index_table[i] |= OFF_T_MSB; | |
0877957a | 934 | } |
0877957a | 935 | |
936 | return 0; | |
937 | ||
938 | fail_index: | |
cc376814 | 939 | free(index_table); |
0877957a | 940 | fail_io: |
941 | if (compr_img != NULL) { | |
942 | free(compr_img); | |
943 | compr_img = NULL; | |
944 | } | |
9a92bffb | 945 | return -1; |
946 | } | |
947 | ||
b0ec2e6d | 948 | #ifdef HAVE_CHD |
ce188d4d | 949 | static int handlechd(const char *isofile) { |
6658ddcf | 950 | int frame_offset = 150; |
951 | int file_offset = 0; | |
952 | ||
ce188d4d | 953 | chd_img = calloc(1, sizeof(*chd_img)); |
954 | if (chd_img == NULL) | |
955 | goto fail_io; | |
956 | ||
957 | if(chd_open(isofile, CHD_OPEN_READ, NULL, &chd_img->chd) != CHDERR_NONE) | |
1d2757f4 | 958 | goto fail_io; |
959 | ||
960 | if (Config.CHD_Precache && (chd_precache(chd_img->chd) != CHDERR_NONE)) | |
961 | goto fail_io; | |
ce188d4d | 962 | |
aeb82099 | 963 | chd_img->header = chd_get_header(chd_img->chd); |
ce188d4d | 964 | |
aeb82099 | 965 | chd_img->buffer = malloc(chd_img->header->hunkbytes * 2); |
966 | if (chd_img->buffer == NULL) | |
ce188d4d | 967 | goto fail_io; |
968 | ||
aeb82099 | 969 | chd_img->sectors_per_hunk = chd_img->header->hunkbytes / (CD_FRAMESIZE_RAW + SUB_FRAMESIZE); |
970 | chd_img->current_hunk[0] = (unsigned int)-1; | |
971 | chd_img->current_hunk[1] = (unsigned int)-1; | |
ce188d4d | 972 | |
aeb82099 | 973 | cddaBigEndian = TRUE; |
ce188d4d | 974 | |
975 | numtracks = 0; | |
ce188d4d | 976 | memset(ti, 0, sizeof(ti)); |
977 | ||
978 | while (1) | |
979 | { | |
980 | struct { | |
981 | char type[64]; | |
982 | char subtype[32]; | |
983 | char pgtype[32]; | |
984 | char pgsub[32]; | |
985 | uint32_t track; | |
986 | uint32_t frames; | |
987 | uint32_t pregap; | |
988 | uint32_t postgap; | |
989 | } md = {}; | |
990 | char meta[256]; | |
991 | uint32_t meta_size = 0; | |
992 | ||
993 | if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA2_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE) | |
994 | sscanf(meta, CDROM_TRACK_METADATA2_FORMAT, &md.track, md.type, md.subtype, &md.frames, &md.pregap, md.pgtype, md.pgsub, &md.postgap); | |
995 | else if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE) | |
996 | sscanf(meta, CDROM_TRACK_METADATA_FORMAT, &md.track, md.type, md.subtype, &md.frames); | |
997 | else | |
998 | break; | |
999 | ||
75d5614b | 1000 | SysPrintf("chd: %s\n", meta); |
1001 | ||
1002 | if (md.track == 1) { | |
75d5614b | 1003 | if (!strncmp(md.subtype, "RW", 2)) { |
1004 | subChanMixed = TRUE; | |
1005 | if (!strcmp(md.subtype, "RW_RAW")) | |
1006 | subChanRaw = TRUE; | |
1007 | } | |
1008 | } | |
ce188d4d | 1009 | |
055b81e1 | 1010 | ti[md.track].type = !strncmp(md.type, "AUDIO", 5) ? CDDA : DATA; |
ce188d4d | 1011 | |
055b81e1 | 1012 | sec2msf(frame_offset + md.pregap, ti[md.track].start); |
1013 | sec2msf(md.frames, ti[md.track].length); | |
ce188d4d | 1014 | |
6658ddcf | 1015 | ti[md.track].start_offset = file_offset + md.pregap; |
ce188d4d | 1016 | |
6658ddcf | 1017 | // XXX: what about postgap? |
1018 | frame_offset += md.frames; | |
1019 | file_offset += md.frames; | |
ce188d4d | 1020 | numtracks++; |
1021 | } | |
1022 | ||
1023 | if (numtracks) | |
1024 | return 0; | |
1025 | ||
1026 | fail_io: | |
1027 | if (chd_img != NULL) { | |
1028 | free(chd_img->buffer); | |
1029 | free(chd_img); | |
1030 | chd_img = NULL; | |
1031 | } | |
1032 | return -1; | |
1033 | } | |
b0ec2e6d | 1034 | #endif |
ce188d4d | 1035 | |
ef79bbde P |
1036 | // this function tries to get the .sub file of the given .img |
1037 | static int opensubfile(const char *isoname) { | |
1038 | char subname[MAXPATHLEN]; | |
1039 | ||
1040 | // copy name of the iso and change extension from .img to .sub | |
1041 | strncpy(subname, isoname, sizeof(subname)); | |
1042 | subname[MAXPATHLEN - 1] = '\0'; | |
1043 | if (strlen(subname) >= 4) { | |
1044 | strcpy(subname + strlen(subname) - 4, ".sub"); | |
1045 | } | |
1046 | else { | |
1047 | return -1; | |
1048 | } | |
1049 | ||
226a5691 | 1050 | subHandle = fopen(subname, "rb"); |
ef79bbde P |
1051 | if (subHandle == NULL) { |
1052 | return -1; | |
1053 | } | |
1054 | ||
1055 | return 0; | |
1056 | } | |
1057 | ||
ae4e7dc9 | 1058 | static int opensbifile(const char *isoname) { |
ba1cce07 | 1059 | char sbiname[MAXPATHLEN], disknum[MAXPATHLEN] = "0"; |
ae4e7dc9 | 1060 | int s; |
1061 | ||
1062 | strncpy(sbiname, isoname, sizeof(sbiname)); | |
1063 | sbiname[MAXPATHLEN - 1] = '\0'; | |
1064 | if (strlen(sbiname) >= 4) { | |
ba1cce07 S |
1065 | if (cdrIsoMultidiskCount > 1) { |
1066 | sprintf(disknum, "_%i.sbi", cdrIsoMultidiskSelect + 1); | |
1067 | strcpy(sbiname + strlen(sbiname) - 4, disknum); | |
1068 | } | |
1069 | else | |
1070 | strcpy(sbiname + strlen(sbiname) - 4, ".sbi"); | |
ae4e7dc9 | 1071 | } |
1072 | else { | |
1073 | return -1; | |
1074 | } | |
1075 | ||
1076 | fseek(cdHandle, 0, SEEK_END); | |
1077 | s = ftell(cdHandle) / 2352; | |
1078 | ||
1079 | return LoadSBI(sbiname, s); | |
1080 | } | |
1081 | ||
9f47c8ed | 1082 | #ifndef USE_READ_THREAD |
679b71e2 JW |
1083 | static void readThreadStop() {} |
1084 | static void readThreadStart() {} | |
1085 | #else | |
1086 | static pthread_t read_thread_id; | |
1087 | ||
1088 | static pthread_cond_t read_thread_msg_avail; | |
1089 | static pthread_cond_t read_thread_msg_done; | |
1090 | static pthread_mutex_t read_thread_msg_lock; | |
1091 | ||
1092 | static pthread_cond_t sectorbuffer_cond; | |
1093 | static pthread_mutex_t sectorbuffer_lock; | |
1094 | ||
1095 | static boolean read_thread_running = FALSE; | |
1096 | static int read_thread_sector_start = -1; | |
1097 | static int read_thread_sector_end = -1; | |
1098 | ||
1099 | typedef struct { | |
1100 | int sector; | |
1101 | long ret; | |
1102 | unsigned char data[CD_FRAMESIZE_RAW]; | |
1103 | } SectorBufferEntry; | |
1104 | ||
1105 | #define SECTOR_BUFFER_SIZE 4096 | |
1106 | ||
1107 | static SectorBufferEntry *sectorbuffer; | |
1108 | static size_t sectorbuffer_index; | |
1109 | ||
1110 | int (*sync_cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector); | |
1111 | unsigned char *(*sync_CDR_getBuffer)(void); | |
1112 | ||
1113 | static unsigned char * CALLBACK ISOgetBuffer_async(void); | |
1114 | static int cdread_async(FILE *f, unsigned int base, void *dest, int sector); | |
1115 | ||
1116 | static void *readThreadMain(void *param) { | |
1117 | int max_sector = -1; | |
1118 | int requested_sector_start = -1; | |
1119 | int requested_sector_end = -1; | |
1120 | int last_read_sector = -1; | |
1121 | int index = 0; | |
1122 | ||
1123 | int ra_sector = -1; | |
1124 | int max_ra = 128; | |
1125 | int initial_ra = 1; | |
1126 | int speedmult_ra = 4; | |
1127 | ||
1128 | int ra_count = 0; | |
1129 | int how_far_ahead = 0; | |
1130 | ||
1131 | unsigned char tmpdata[CD_FRAMESIZE_RAW]; | |
1132 | long ret; | |
1133 | ||
1134 | max_sector = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length); | |
1135 | ||
1136 | while(1) { | |
1137 | pthread_mutex_lock(&read_thread_msg_lock); | |
1138 | ||
1139 | // If we don't have readahead and we don't have a sector request, wait for one. | |
1140 | // If we still have readahead to go, don't block, just keep going. | |
1141 | // And if we ever have a sector request pending, acknowledge and reset it. | |
1142 | ||
1143 | if (!ra_count) { | |
1144 | if (read_thread_sector_start == -1 && read_thread_running) { | |
1145 | pthread_cond_wait(&read_thread_msg_avail, &read_thread_msg_lock); | |
1146 | } | |
1147 | } | |
1148 | ||
1149 | if (read_thread_sector_start != -1) { | |
1150 | requested_sector_start = read_thread_sector_start; | |
1151 | requested_sector_end = read_thread_sector_end; | |
1152 | read_thread_sector_start = -1; | |
1153 | read_thread_sector_end = -1; | |
1154 | pthread_cond_signal(&read_thread_msg_done); | |
1155 | } | |
1156 | ||
1157 | pthread_mutex_unlock(&read_thread_msg_lock); | |
1158 | ||
1159 | if (!read_thread_running) | |
1160 | break; | |
1161 | ||
1162 | // Readahead code, based on the implementation in mednafen psx's cdromif.cpp | |
1163 | if (requested_sector_start != -1) { | |
1164 | if (last_read_sector != -1 && last_read_sector == (requested_sector_start - 1)) { | |
1165 | how_far_ahead = ra_sector - requested_sector_end; | |
1166 | ||
1167 | if(how_far_ahead <= max_ra) | |
1168 | ra_count = (max_ra - how_far_ahead + 1 ? max_ra - how_far_ahead + 1 : speedmult_ra); | |
1169 | else | |
1170 | ra_count++; | |
1171 | } else if (requested_sector_end != last_read_sector) { | |
1172 | ra_sector = requested_sector_end; | |
1173 | ra_count = initial_ra; | |
1174 | } | |
1175 | ||
1176 | last_read_sector = requested_sector_end; | |
1177 | } | |
1178 | ||
00e69290 JW |
1179 | index = ra_sector % SECTOR_BUFFER_SIZE; |
1180 | ||
679b71e2 JW |
1181 | // check for end of CD |
1182 | if (ra_count && ra_sector >= max_sector) { | |
1183 | ra_count = 0; | |
00e69290 JW |
1184 | pthread_mutex_lock(§orbuffer_lock); |
1185 | sectorbuffer[index].ret = -1; | |
1186 | sectorbuffer[index].sector = ra_sector; | |
1187 | pthread_cond_signal(§orbuffer_cond); | |
1188 | pthread_mutex_unlock(§orbuffer_lock); | |
679b71e2 JW |
1189 | } |
1190 | ||
1191 | if (ra_count) { | |
679b71e2 JW |
1192 | pthread_mutex_lock(§orbuffer_lock); |
1193 | if (sectorbuffer[index].sector != ra_sector) { | |
1194 | pthread_mutex_unlock(§orbuffer_lock); | |
1195 | ||
1196 | ret = sync_cdimg_read_func(cdHandle, 0, tmpdata, ra_sector); | |
1197 | ||
1198 | pthread_mutex_lock(§orbuffer_lock); | |
1199 | sectorbuffer[index].ret = ret; | |
1200 | sectorbuffer[index].sector = ra_sector; | |
1201 | memcpy(sectorbuffer[index].data, tmpdata, CD_FRAMESIZE_RAW); | |
1202 | } | |
1203 | pthread_cond_signal(§orbuffer_cond); | |
1204 | pthread_mutex_unlock(§orbuffer_lock); | |
1205 | ||
1206 | ra_sector++; | |
1207 | ra_count--; | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | return NULL; | |
1212 | } | |
1213 | ||
1214 | static void readThreadStop() { | |
1215 | if (read_thread_running == TRUE) { | |
1216 | read_thread_running = FALSE; | |
1217 | pthread_cond_signal(&read_thread_msg_avail); | |
1218 | pthread_join(read_thread_id, NULL); | |
1219 | } | |
1220 | ||
1221 | pthread_cond_destroy(&read_thread_msg_done); | |
1222 | pthread_cond_destroy(&read_thread_msg_avail); | |
1223 | pthread_mutex_destroy(&read_thread_msg_lock); | |
1224 | ||
1225 | pthread_cond_destroy(§orbuffer_cond); | |
1226 | pthread_mutex_destroy(§orbuffer_lock); | |
1227 | ||
1228 | CDR_getBuffer = sync_CDR_getBuffer; | |
1229 | cdimg_read_func = sync_cdimg_read_func; | |
1230 | ||
1231 | free(sectorbuffer); | |
1232 | sectorbuffer = NULL; | |
1233 | } | |
1234 | ||
1235 | static void readThreadStart() { | |
1236 | SysPrintf("Starting async CD thread\n"); | |
1237 | ||
1238 | if (read_thread_running == TRUE) | |
1239 | return; | |
1240 | ||
1241 | read_thread_running = TRUE; | |
1242 | read_thread_sector_start = -1; | |
1243 | read_thread_sector_end = -1; | |
1244 | sectorbuffer_index = 0; | |
1245 | ||
1246 | sectorbuffer = calloc(SECTOR_BUFFER_SIZE, sizeof(SectorBufferEntry)); | |
1247 | if(!sectorbuffer) | |
1248 | goto error; | |
1249 | ||
1250 | sectorbuffer[0].sector = -1; // Otherwise we might think we've already fetched sector 0! | |
1251 | ||
1252 | sync_CDR_getBuffer = CDR_getBuffer; | |
1253 | CDR_getBuffer = ISOgetBuffer_async; | |
1254 | sync_cdimg_read_func = cdimg_read_func; | |
1255 | cdimg_read_func = cdread_async; | |
1256 | ||
1257 | if (pthread_cond_init(&read_thread_msg_avail, NULL) || | |
1258 | pthread_cond_init(&read_thread_msg_done, NULL) || | |
1259 | pthread_mutex_init(&read_thread_msg_lock, NULL) || | |
1260 | pthread_cond_init(§orbuffer_cond, NULL) || | |
1261 | pthread_mutex_init(§orbuffer_lock, NULL) || | |
1262 | pthread_create(&read_thread_id, NULL, readThreadMain, NULL)) | |
1263 | goto error; | |
1264 | ||
1265 | return; | |
1266 | ||
1267 | error: | |
1268 | SysPrintf("Error starting async CD thread\n"); | |
1269 | SysPrintf("Falling back to sync\n"); | |
1270 | ||
1271 | readThreadStop(); | |
1272 | } | |
1273 | #endif | |
1274 | ||
77160d47 | 1275 | static int cdread_normal(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1276 | { |
0eacae49 | 1277 | int ret; |
1278 | if (fseek(f, base + sector * CD_FRAMESIZE_RAW, SEEK_SET)) | |
1279 | goto fail_io; | |
1280 | ret = fread(dest, 1, CD_FRAMESIZE_RAW, f); | |
1281 | if (ret <= 0) | |
1282 | goto fail_io; | |
1283 | return ret; | |
1284 | ||
1285 | fail_io: | |
1286 | // often happens in cdda gaps of a split cue/bin, so not logged | |
1287 | //SysPrintf("File IO error %d, base %u, sector %u\n", errno, base, sector); | |
1288 | return -1; | |
9a92bffb | 1289 | } |
1290 | ||
77160d47 | 1291 | static int cdread_sub_mixed(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1292 | { |
1293 | int ret; | |
1294 | ||
0eacae49 | 1295 | if (fseek(f, base + sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE), SEEK_SET)) |
1296 | goto fail_io; | |
81abe4d5 | 1297 | ret = fread(dest, 1, CD_FRAMESIZE_RAW, f); |
0eacae49 | 1298 | if (ret <= 0) |
1299 | goto fail_io; | |
1300 | return ret; | |
1301 | ||
1302 | fail_io: | |
1303 | //SysPrintf("File IO error %d, base %u, sector %u\n", errno, base, sector); | |
1304 | return -1; | |
1305 | } | |
1306 | ||
1307 | static int cdread_sub_sub_mixed(FILE *f, int sector) | |
1308 | { | |
1309 | if (fseek(f, sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + CD_FRAMESIZE_RAW, SEEK_SET)) | |
1310 | goto fail_io; | |
9361a5aa EC |
1311 | if (fread(subbuffer, 1, SUB_FRAMESIZE, f) != SUB_FRAMESIZE) |
1312 | goto fail_io; | |
9a92bffb | 1313 | |
0eacae49 | 1314 | return SUB_FRAMESIZE; |
9361a5aa EC |
1315 | |
1316 | fail_io: | |
0eacae49 | 1317 | SysPrintf("subchannel: file IO error %d, sector %u\n", errno, sector); |
1318 | return -1; | |
9a92bffb | 1319 | } |
1320 | ||
2dd6a826 | 1321 | static int uncompress2_pcsx(void *out, unsigned long *out_size, void *in, unsigned long in_size) |
9a92bffb | 1322 | { |
1323 | static z_stream z; | |
1324 | int ret = 0; | |
1325 | ||
1326 | if (z.zalloc == NULL) { | |
1327 | // XXX: one-time leak here.. | |
1328 | z.next_in = Z_NULL; | |
1329 | z.avail_in = 0; | |
1330 | z.zalloc = Z_NULL; | |
1331 | z.zfree = Z_NULL; | |
1332 | z.opaque = Z_NULL; | |
1333 | ret = inflateInit2(&z, -15); | |
1334 | } | |
1335 | else | |
1336 | ret = inflateReset(&z); | |
1337 | if (ret != Z_OK) | |
1338 | return ret; | |
1339 | ||
1340 | z.next_in = in; | |
1341 | z.avail_in = in_size; | |
1342 | z.next_out = out; | |
1343 | z.avail_out = *out_size; | |
1344 | ||
1345 | ret = inflate(&z, Z_NO_FLUSH); | |
1346 | //inflateEnd(&z); | |
1347 | ||
1348 | *out_size -= z.avail_out; | |
1349 | return ret == 1 ? 0 : ret; | |
1350 | } | |
1351 | ||
77160d47 | 1352 | static int cdread_compressed(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1353 | { |
0877957a | 1354 | unsigned long cdbuffer_size, cdbuffer_size_expect; |
cc376814 | 1355 | unsigned int size; |
0877957a | 1356 | int is_compressed; |
cc376814 | 1357 | off_t start_byte; |
9a92bffb | 1358 | int ret, block; |
1359 | ||
77160d47 | 1360 | if (base) |
1361 | sector += base / 2352; | |
1362 | ||
0877957a | 1363 | block = sector >> compr_img->block_shift; |
1364 | compr_img->sector_in_blk = sector & ((1 << compr_img->block_shift) - 1); | |
9a92bffb | 1365 | |
1366 | if (block == compr_img->current_block) { | |
1367 | //printf("hit sect %d\n", sector); | |
1368 | goto finish; | |
1369 | } | |
1370 | ||
1371 | if (sector >= compr_img->index_len * 16) { | |
f29fbd53 | 1372 | SysPrintf("sector %d is past img end\n", sector); |
9a92bffb | 1373 | return -1; |
1374 | } | |
1375 | ||
cc376814 | 1376 | start_byte = compr_img->index_table[block] & ~OFF_T_MSB; |
1377 | if (fseeko(cdHandle, start_byte, SEEK_SET) != 0) { | |
1378 | SysPrintf("seek error for block %d at %llx: ", | |
1379 | block, (long long)start_byte); | |
9a92bffb | 1380 | perror(NULL); |
1381 | return -1; | |
1382 | } | |
1383 | ||
cc376814 | 1384 | is_compressed = !(compr_img->index_table[block] & OFF_T_MSB); |
1385 | size = (compr_img->index_table[block + 1] & ~OFF_T_MSB) - start_byte; | |
9a92bffb | 1386 | if (size > sizeof(compr_img->buff_compressed)) { |
f29fbd53 | 1387 | SysPrintf("block %d is too large: %u\n", block, size); |
9a92bffb | 1388 | return -1; |
1389 | } | |
1390 | ||
0877957a | 1391 | if (fread(is_compressed ? compr_img->buff_compressed : compr_img->buff_raw[0], |
1392 | 1, size, cdHandle) != size) { | |
f29fbd53 | 1393 | SysPrintf("read error for block %d at %x: ", block, start_byte); |
9a92bffb | 1394 | perror(NULL); |
1395 | return -1; | |
1396 | } | |
1397 | ||
0877957a | 1398 | if (is_compressed) { |
1399 | cdbuffer_size_expect = sizeof(compr_img->buff_raw[0]) << compr_img->block_shift; | |
1400 | cdbuffer_size = cdbuffer_size_expect; | |
2dd6a826 | 1401 | ret = uncompress2_pcsx(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size); |
0877957a | 1402 | if (ret != 0) { |
f29fbd53 | 1403 | SysPrintf("uncompress failed with %d for block %d, sector %d\n", |
0877957a | 1404 | ret, block, sector); |
1405 | return -1; | |
1406 | } | |
1407 | if (cdbuffer_size != cdbuffer_size_expect) | |
f29fbd53 | 1408 | SysPrintf("cdbuffer_size: %lu != %lu, sector %d\n", cdbuffer_size, |
0877957a | 1409 | cdbuffer_size_expect, sector); |
9a92bffb | 1410 | } |
9a92bffb | 1411 | |
1412 | // done at last! | |
1413 | compr_img->current_block = block; | |
1414 | ||
1415 | finish: | |
1416 | if (dest != cdbuffer) // copy avoid HACK | |
81abe4d5 | 1417 | memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk], |
1418 | CD_FRAMESIZE_RAW); | |
1419 | return CD_FRAMESIZE_RAW; | |
9a92bffb | 1420 | } |
1421 | ||
b0ec2e6d | 1422 | #ifdef HAVE_CHD |
aeb82099 | 1423 | static unsigned char *chd_get_sector(unsigned int current_buffer, unsigned int sector_in_hunk) |
1424 | { | |
1425 | return chd_img->buffer | |
1426 | + current_buffer * chd_img->header->hunkbytes | |
1427 | + sector_in_hunk * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE); | |
1428 | } | |
1429 | ||
ce188d4d | 1430 | static int cdread_chd(FILE *f, unsigned int base, void *dest, int sector) |
1431 | { | |
1432 | int hunk; | |
1433 | ||
f02c57ea | 1434 | sector += base; |
ce188d4d | 1435 | |
1436 | hunk = sector / chd_img->sectors_per_hunk; | |
1437 | chd_img->sector_in_hunk = sector % chd_img->sectors_per_hunk; | |
1438 | ||
aeb82099 | 1439 | if (hunk == chd_img->current_hunk[0]) |
1440 | chd_img->current_buffer = 0; | |
1441 | else if (hunk == chd_img->current_hunk[1]) | |
1442 | chd_img->current_buffer = 1; | |
1443 | else | |
055b81e1 | 1444 | { |
aeb82099 | 1445 | chd_read(chd_img->chd, hunk, chd_img->buffer + |
1446 | chd_img->current_buffer * chd_img->header->hunkbytes); | |
1447 | chd_img->current_hunk[chd_img->current_buffer] = hunk; | |
055b81e1 | 1448 | } |
ce188d4d | 1449 | |
ce188d4d | 1450 | if (dest != cdbuffer) // copy avoid HACK |
aeb82099 | 1451 | memcpy(dest, chd_get_sector(chd_img->current_buffer, chd_img->sector_in_hunk), |
ce188d4d | 1452 | CD_FRAMESIZE_RAW); |
1453 | return CD_FRAMESIZE_RAW; | |
1454 | } | |
0eacae49 | 1455 | |
1456 | static int cdread_sub_chd(FILE *f, int sector) | |
1457 | { | |
aeb82099 | 1458 | unsigned int sector_in_hunk; |
1459 | unsigned int buffer; | |
0eacae49 | 1460 | int hunk; |
1461 | ||
1462 | if (!subChanMixed) | |
1463 | return -1; | |
1464 | ||
1465 | hunk = sector / chd_img->sectors_per_hunk; | |
aeb82099 | 1466 | sector_in_hunk = sector % chd_img->sectors_per_hunk; |
0eacae49 | 1467 | |
aeb82099 | 1468 | if (hunk == chd_img->current_hunk[0]) |
1469 | buffer = 0; | |
1470 | else if (hunk == chd_img->current_hunk[1]) | |
1471 | buffer = 1; | |
1472 | else | |
0eacae49 | 1473 | { |
aeb82099 | 1474 | buffer = chd_img->current_buffer ^ 1; |
1475 | chd_read(chd_img->chd, hunk, chd_img->buffer + | |
1476 | buffer * chd_img->header->hunkbytes); | |
1477 | chd_img->current_hunk[buffer] = hunk; | |
0eacae49 | 1478 | } |
1479 | ||
aeb82099 | 1480 | memcpy(subbuffer, chd_get_sector(buffer, sector_in_hunk) + CD_FRAMESIZE_RAW, SUB_FRAMESIZE); |
0eacae49 | 1481 | return SUB_FRAMESIZE; |
1482 | } | |
b0ec2e6d | 1483 | #endif |
5b568098 | 1484 | |
77160d47 | 1485 | static int cdread_2048(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1486 | { |
1487 | int ret; | |
1488 | ||
77160d47 | 1489 | fseek(f, base + sector * 2048, SEEK_SET); |
81abe4d5 | 1490 | ret = fread((char *)dest + 12 * 2, 1, 2048, f); |
9a92bffb | 1491 | |
1492 | // not really necessary, fake mode 2 header | |
81abe4d5 | 1493 | memset(cdbuffer, 0, 12 * 2); |
1494 | sec2msf(sector + 2 * 75, (char *)&cdbuffer[12]); | |
1495 | cdbuffer[12 + 3] = 1; | |
9a92bffb | 1496 | |
1f665cdd | 1497 | return 12*2 + ret; |
9a92bffb | 1498 | } |
1499 | ||
9f47c8ed | 1500 | #ifdef USE_READ_THREAD |
679b71e2 JW |
1501 | |
1502 | static int cdread_async(FILE *f, unsigned int base, void *dest, int sector) { | |
1503 | boolean found = FALSE; | |
1504 | int i = sector % SECTOR_BUFFER_SIZE; | |
1505 | long ret; | |
1506 | ||
1507 | if (f != cdHandle || base != 0 || dest != cdbuffer) { | |
1508 | // Async reads are only supported for cdbuffer, so call the sync | |
1509 | // function directly. | |
1510 | return sync_cdimg_read_func(f, base, dest, sector); | |
1511 | } | |
1512 | ||
1513 | pthread_mutex_lock(&read_thread_msg_lock); | |
1514 | ||
1515 | // Only wait if we're not trying to read the next sector and | |
1516 | // sector_start is set (meaning the last request hasn't been | |
1517 | // processed yet) | |
1518 | while(read_thread_sector_start != -1 && read_thread_sector_end + 1 != sector) { | |
1519 | pthread_cond_wait(&read_thread_msg_done, &read_thread_msg_lock); | |
1520 | } | |
1521 | ||
1522 | if (read_thread_sector_start == -1) | |
1523 | read_thread_sector_start = sector; | |
1524 | ||
1525 | read_thread_sector_end = sector; | |
1526 | pthread_cond_signal(&read_thread_msg_avail); | |
1527 | pthread_mutex_unlock(&read_thread_msg_lock); | |
1528 | ||
1529 | do { | |
1530 | pthread_mutex_lock(§orbuffer_lock); | |
1531 | if (sectorbuffer[i].sector == sector) { | |
1532 | sectorbuffer_index = i; | |
1533 | ret = sectorbuffer[i].ret; | |
1534 | found = TRUE; | |
1535 | } | |
1536 | ||
1537 | if (!found) { | |
1538 | pthread_cond_wait(§orbuffer_cond, §orbuffer_lock); | |
1539 | } | |
1540 | pthread_mutex_unlock(§orbuffer_lock); | |
1541 | } while (!found); | |
1542 | ||
1543 | return ret; | |
1544 | } | |
1545 | ||
1546 | #endif | |
1547 | ||
9a92bffb | 1548 | static unsigned char * CALLBACK ISOgetBuffer_compr(void) { |
1549 | return compr_img->buff_raw[compr_img->sector_in_blk] + 12; | |
1550 | } | |
1551 | ||
b0ec2e6d | 1552 | #ifdef HAVE_CHD |
ce188d4d | 1553 | static unsigned char * CALLBACK ISOgetBuffer_chd(void) { |
aeb82099 | 1554 | return chd_get_sector(chd_img->current_buffer, chd_img->sector_in_hunk) + 12; |
ce188d4d | 1555 | } |
b0ec2e6d | 1556 | #endif |
ce188d4d | 1557 | |
9f47c8ed | 1558 | #ifdef USE_READ_THREAD |
679b71e2 JW |
1559 | static unsigned char * CALLBACK ISOgetBuffer_async(void) { |
1560 | unsigned char *buffer; | |
1561 | pthread_mutex_lock(§orbuffer_lock); | |
1562 | buffer = sectorbuffer[sectorbuffer_index].data; | |
1563 | pthread_mutex_unlock(§orbuffer_lock); | |
1564 | return buffer + 12; | |
1565 | } | |
1566 | ||
1567 | #endif | |
1568 | ||
9a92bffb | 1569 | static unsigned char * CALLBACK ISOgetBuffer(void) { |
81abe4d5 | 1570 | return cdbuffer + 12; |
9a92bffb | 1571 | } |
1572 | ||
ef79bbde P |
1573 | static void PrintTracks(void) { |
1574 | int i; | |
1575 | ||
1576 | for (i = 1; i <= numtracks; i++) { | |
1577 | SysPrintf(_("Track %.2d (%s) - Start %.2d:%.2d:%.2d, Length %.2d:%.2d:%.2d\n"), | |
1578 | i, (ti[i].type == DATA ? "DATA" : "AUDIO"), | |
1579 | ti[i].start[0], ti[i].start[1], ti[i].start[2], | |
1580 | ti[i].length[0], ti[i].length[1], ti[i].length[2]); | |
1581 | } | |
1582 | } | |
1583 | ||
1584 | // This function is invoked by the front-end when opening an ISO | |
1585 | // file for playback | |
1586 | static long CALLBACK ISOopen(void) { | |
9a92bffb | 1587 | boolean isMode1ISO = FALSE; |
689e0447 | 1588 | char alt_bin_filename[MAXPATHLEN]; |
1589 | const char *bin_filename; | |
75d5614b | 1590 | char image_str[1024]; |
1591 | int is_chd = 0; | |
9a92bffb | 1592 | |
ef79bbde P |
1593 | if (cdHandle != NULL) { |
1594 | return 0; // it's already open | |
1595 | } | |
1596 | ||
226a5691 | 1597 | cdHandle = fopen(GetIsoFile(), "rb"); |
ef79bbde | 1598 | if (cdHandle == NULL) { |
2e058581 | 1599 | SysPrintf(_("Could't open '%s' for reading: %s\n"), |
1600 | GetIsoFile(), strerror(errno)); | |
ef79bbde P |
1601 | return -1; |
1602 | } | |
1603 | ||
75d5614b | 1604 | snprintf(image_str, sizeof(image_str) - 6*4 - 1, |
1605 | "Loaded CD Image: %s", GetIsoFile()); | |
ef79bbde P |
1606 | |
1607 | cddaBigEndian = FALSE; | |
1608 | subChanMixed = FALSE; | |
1609 | subChanRaw = FALSE; | |
8aa91443 | 1610 | pregapOffset = 0; |
0c2871a7 | 1611 | cdrIsoMultidiskCount = 1; |
deebc67f | 1612 | multifile = 0; |
ef79bbde | 1613 | |
9a92bffb | 1614 | CDR_getBuffer = ISOgetBuffer; |
1615 | cdimg_read_func = cdread_normal; | |
0eacae49 | 1616 | cdimg_read_sub_func = NULL; |
9a92bffb | 1617 | |
92f43ab0 | 1618 | if (parsetoc(GetIsoFile()) == 0) { |
208177a7 | 1619 | strcat(image_str, "[+toc]"); |
ef79bbde P |
1620 | } |
1621 | else if (parseccd(GetIsoFile()) == 0) { | |
208177a7 | 1622 | strcat(image_str, "[+ccd]"); |
ef79bbde P |
1623 | } |
1624 | else if (parsemds(GetIsoFile()) == 0) { | |
208177a7 | 1625 | strcat(image_str, "[+mds]"); |
ef79bbde | 1626 | } |
92f43ab0 | 1627 | else if (parsecue(GetIsoFile()) == 0) { |
208177a7 | 1628 | strcat(image_str, "[+cue]"); |
92f43ab0 | 1629 | } |
0877957a | 1630 | if (handlepbp(GetIsoFile()) == 0) { |
208177a7 | 1631 | strcat(image_str, "[+pbp]"); |
9a92bffb | 1632 | CDR_getBuffer = ISOgetBuffer_compr; |
1633 | cdimg_read_func = cdread_compressed; | |
1634 | } | |
0877957a | 1635 | else if (handlecbin(GetIsoFile()) == 0) { |
208177a7 | 1636 | strcat(image_str, "[+cbin]"); |
0877957a | 1637 | CDR_getBuffer = ISOgetBuffer_compr; |
1638 | cdimg_read_func = cdread_compressed; | |
1639 | } | |
b0ec2e6d | 1640 | #ifdef HAVE_CHD |
ce188d4d | 1641 | else if (handlechd(GetIsoFile()) == 0) { |
208177a7 | 1642 | strcat(image_str, "[+chd]"); |
ce188d4d | 1643 | CDR_getBuffer = ISOgetBuffer_chd; |
1644 | cdimg_read_func = cdread_chd; | |
0eacae49 | 1645 | cdimg_read_sub_func = cdread_sub_chd; |
75d5614b | 1646 | is_chd = 1; |
ce188d4d | 1647 | } |
b0ec2e6d | 1648 | #endif |
ef79bbde P |
1649 | |
1650 | if (!subChanMixed && opensubfile(GetIsoFile()) == 0) { | |
208177a7 | 1651 | strcat(image_str, "[+sub]"); |
ef79bbde | 1652 | } |
ae4e7dc9 | 1653 | if (opensbifile(GetIsoFile()) == 0) { |
208177a7 | 1654 | strcat(image_str, "[+sbi]"); |
ae4e7dc9 | 1655 | } |
ef79bbde | 1656 | |
cc376814 | 1657 | fseeko(cdHandle, 0, SEEK_END); |
c9e5423e | 1658 | |
1659 | // maybe user selected metadata file instead of main .bin .. | |
689e0447 | 1660 | bin_filename = GetIsoFile(); |
cc376814 | 1661 | if (ftello(cdHandle) < 2352 * 0x10) { |
c9e5423e | 1662 | static const char *exts[] = { ".bin", ".BIN", ".img", ".IMG" }; |
689e0447 | 1663 | FILE *tmpf = NULL; |
c9e5423e | 1664 | size_t i; |
689e0447 | 1665 | char *p; |
c9e5423e | 1666 | |
689e0447 | 1667 | strncpy(alt_bin_filename, bin_filename, sizeof(alt_bin_filename)); |
1668 | alt_bin_filename[MAXPATHLEN - 1] = '\0'; | |
1669 | if (strlen(alt_bin_filename) >= 4) { | |
1670 | p = alt_bin_filename + strlen(alt_bin_filename) - 4; | |
c9e5423e | 1671 | for (i = 0; i < sizeof(exts) / sizeof(exts[0]); i++) { |
1672 | strcpy(p, exts[i]); | |
226a5691 | 1673 | tmpf = fopen(alt_bin_filename, "rb"); |
689e0447 | 1674 | if (tmpf != NULL) |
c9e5423e | 1675 | break; |
c9e5423e | 1676 | } |
1677 | } | |
689e0447 | 1678 | if (tmpf != NULL) { |
1679 | bin_filename = alt_bin_filename; | |
1680 | fclose(cdHandle); | |
1681 | cdHandle = tmpf; | |
cc376814 | 1682 | fseeko(cdHandle, 0, SEEK_END); |
689e0447 | 1683 | } |
c9e5423e | 1684 | } |
1685 | ||
1686 | // guess whether it is mode1/2048 | |
cc376814 | 1687 | if (ftello(cdHandle) % 2048 == 0) { |
9a92bffb | 1688 | unsigned int modeTest = 0; |
1689 | fseek(cdHandle, 0, SEEK_SET); | |
4f0c5e3f | 1690 | if (!fread(&modeTest, sizeof(modeTest), 1, cdHandle)) { |
9361a5aa EC |
1691 | #ifndef NDEBUG |
1692 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
1693 | #endif | |
1694 | return -1; | |
1695 | } | |
9a92bffb | 1696 | if (SWAP32(modeTest) != 0xffffff00) { |
208177a7 | 1697 | strcat(image_str, "[2048]"); |
9a92bffb | 1698 | isMode1ISO = TRUE; |
1699 | } | |
1700 | } | |
1701 | fseek(cdHandle, 0, SEEK_SET); | |
1702 | ||
208177a7 | 1703 | SysPrintf("%s.\n", image_str); |
ef79bbde P |
1704 | |
1705 | PrintTracks(); | |
1706 | ||
0eacae49 | 1707 | if (subChanMixed && !is_chd) { |
9a92bffb | 1708 | cdimg_read_func = cdread_sub_mixed; |
0eacae49 | 1709 | cdimg_read_sub_func = cdread_sub_sub_mixed; |
1710 | } | |
1711 | else if (isMode1ISO) { | |
9a92bffb | 1712 | cdimg_read_func = cdread_2048; |
0eacae49 | 1713 | cdimg_read_sub_func = NULL; |
1714 | } | |
9a92bffb | 1715 | |
38b8102c | 1716 | // make sure we have another handle open for cdda |
1717 | if (numtracks > 1 && ti[1].handle == NULL) { | |
226a5691 | 1718 | ti[1].handle = fopen(bin_filename, "rb"); |
38b8102c | 1719 | } |
1720 | ||
679b71e2 JW |
1721 | if (Config.AsyncCD) { |
1722 | readThreadStart(); | |
1723 | } | |
ef79bbde P |
1724 | return 0; |
1725 | } | |
1726 | ||
1727 | static long CALLBACK ISOclose(void) { | |
38b8102c | 1728 | int i; |
1729 | ||
ef79bbde P |
1730 | if (cdHandle != NULL) { |
1731 | fclose(cdHandle); | |
1732 | cdHandle = NULL; | |
1733 | } | |
1734 | if (subHandle != NULL) { | |
1735 | fclose(subHandle); | |
1736 | subHandle = NULL; | |
1737 | } | |
6e537c6d | 1738 | playing = FALSE; |
38b8102c | 1739 | cddaHandle = NULL; |
1740 | ||
9a92bffb | 1741 | if (compr_img != NULL) { |
1742 | free(compr_img->index_table); | |
1743 | free(compr_img); | |
1744 | compr_img = NULL; | |
1745 | } | |
1746 | ||
b0ec2e6d | 1747 | #ifdef HAVE_CHD |
ce188d4d | 1748 | if (chd_img != NULL) { |
1749 | chd_close(chd_img->chd); | |
1750 | free(chd_img->buffer); | |
1751 | free(chd_img); | |
1752 | chd_img = NULL; | |
1753 | } | |
b0ec2e6d | 1754 | #endif |
ce188d4d | 1755 | |
38b8102c | 1756 | for (i = 1; i <= numtracks; i++) { |
1757 | if (ti[i].handle != NULL) { | |
1758 | fclose(ti[i].handle); | |
1759 | ti[i].handle = NULL; | |
1760 | } | |
1761 | } | |
1762 | numtracks = 0; | |
c0ee7ac6 | 1763 | ti[1].type = 0; |
ae4e7dc9 | 1764 | UnloadSBI(); |
38b8102c | 1765 | |
c0ee7ac6 | 1766 | memset(cdbuffer, 0, sizeof(cdbuffer)); |
1767 | CDR_getBuffer = ISOgetBuffer; | |
1768 | ||
49942a16 | 1769 | if (Config.AsyncCD) { |
1770 | readThreadStop(); | |
1771 | } | |
1772 | ||
38b8102c | 1773 | return 0; |
1774 | } | |
1775 | ||
1776 | static long CALLBACK ISOinit(void) { | |
1777 | assert(cdHandle == NULL); | |
1778 | assert(subHandle == NULL); | |
1779 | ||
1780 | return 0; // do nothing | |
1781 | } | |
1782 | ||
1783 | static long CALLBACK ISOshutdown(void) { | |
1784 | ISOclose(); | |
ef79bbde P |
1785 | return 0; |
1786 | } | |
1787 | ||
1788 | // return Starting and Ending Track | |
1789 | // buffer: | |
1790 | // byte 0 - start track | |
1791 | // byte 1 - end track | |
1792 | static long CALLBACK ISOgetTN(unsigned char *buffer) { | |
1793 | buffer[0] = 1; | |
1794 | ||
1795 | if (numtracks > 0) { | |
1796 | buffer[1] = numtracks; | |
1797 | } | |
1798 | else { | |
1799 | buffer[1] = 1; | |
1800 | } | |
1801 | ||
1802 | return 0; | |
1803 | } | |
1804 | ||
1805 | // return Track Time | |
1806 | // buffer: | |
1807 | // byte 0 - frame | |
1808 | // byte 1 - second | |
1809 | // byte 2 - minute | |
1810 | static long CALLBACK ISOgetTD(unsigned char track, unsigned char *buffer) { | |
858ad511 | 1811 | if (track == 0) { |
858ad511 | 1812 | unsigned int sect; |
1813 | unsigned char time[3]; | |
1814 | sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length); | |
ab948f7e | 1815 | sec2msf(sect, (char *)time); |
858ad511 | 1816 | buffer[2] = time[0]; |
1817 | buffer[1] = time[1]; | |
1818 | buffer[0] = time[2]; | |
1819 | } | |
1820 | else if (numtracks > 0 && track <= numtracks) { | |
ef79bbde P |
1821 | buffer[2] = ti[track].start[0]; |
1822 | buffer[1] = ti[track].start[1]; | |
1823 | buffer[0] = ti[track].start[2]; | |
1824 | } | |
1825 | else { | |
1826 | buffer[2] = 0; | |
1827 | buffer[1] = 2; | |
1828 | buffer[0] = 0; | |
1829 | } | |
1830 | ||
1831 | return 0; | |
1832 | } | |
1833 | ||
1834 | // decode 'raw' subchannel data ripped by cdrdao | |
1835 | static void DecodeRawSubData(void) { | |
1836 | unsigned char subQData[12]; | |
1837 | int i; | |
1838 | ||
1839 | memset(subQData, 0, sizeof(subQData)); | |
1840 | ||
1841 | for (i = 0; i < 8 * 12; i++) { | |
1842 | if (subbuffer[i] & (1 << 6)) { // only subchannel Q is needed | |
1843 | subQData[i >> 3] |= (1 << (7 - (i & 7))); | |
1844 | } | |
1845 | } | |
1846 | ||
1847 | memcpy(&subbuffer[12], subQData, 12); | |
1848 | } | |
1849 | ||
1850 | // read track | |
1851 | // time: byte 0 - minute; byte 1 - second; byte 2 - frame | |
1852 | // uses bcd format | |
d2e271b2 | 1853 | static boolean CALLBACK ISOreadTrack(unsigned char *time) { |
19c03d80 | 1854 | int sector = MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])); |
c0ee7ac6 | 1855 | long ret; |
19c03d80 | 1856 | |
ef79bbde | 1857 | if (cdHandle == NULL) { |
d2e271b2 | 1858 | return 0; |
ef79bbde P |
1859 | } |
1860 | ||
0eacae49 | 1861 | if (pregapOffset && sector >= pregapOffset) |
1862 | sector -= 2 * 75; | |
8aa91443 | 1863 | |
c0ee7ac6 | 1864 | ret = cdimg_read_func(cdHandle, 0, cdbuffer, sector); |
1f665cdd | 1865 | if (ret < 12*2 + 2048) |
d2e271b2 | 1866 | return 0; |
ef79bbde | 1867 | |
d2e271b2 | 1868 | return 1; |
ef79bbde P |
1869 | } |
1870 | ||
ef79bbde P |
1871 | // plays cdda audio |
1872 | // sector: byte 0 - minute; byte 1 - second; byte 2 - frame | |
1873 | // does NOT uses bcd format | |
2e88c317 | 1874 | static long CALLBACK ISOplay(unsigned char *time) { |
66425c25 | 1875 | playing = TRUE; |
ef79bbde P |
1876 | return 0; |
1877 | } | |
1878 | ||
1879 | // stops cdda audio | |
1880 | static long CALLBACK ISOstop(void) { | |
66425c25 | 1881 | playing = FALSE; |
ef79bbde P |
1882 | return 0; |
1883 | } | |
1884 | ||
1885 | // gets subchannel data | |
0eacae49 | 1886 | static unsigned char* CALLBACK ISOgetBufferSub(int sector) { |
1887 | if (pregapOffset && sector >= pregapOffset) { | |
1888 | sector -= 2 * 75; | |
1889 | if (sector < pregapOffset) // ? | |
1890 | return NULL; | |
ef79bbde P |
1891 | } |
1892 | ||
0eacae49 | 1893 | if (cdimg_read_sub_func != NULL) { |
1894 | if (cdimg_read_sub_func(cdHandle, sector) != SUB_FRAMESIZE) | |
1895 | return NULL; | |
1896 | } | |
1897 | else if (subHandle != NULL) { | |
1898 | if (fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET)) | |
1899 | return NULL; | |
1900 | if (fread(subbuffer, 1, SUB_FRAMESIZE, subHandle) != SUB_FRAMESIZE) | |
1901 | return NULL; | |
1902 | } | |
1903 | else { | |
1904 | return NULL; | |
1905 | } | |
1906 | ||
1907 | if (subChanRaw) DecodeRawSubData(); | |
1908 | return subbuffer; | |
ef79bbde P |
1909 | } |
1910 | ||
1911 | static long CALLBACK ISOgetStatus(struct CdrStat *stat) { | |
deebc67f | 1912 | u32 sect; |
1913 | ||
ef79bbde | 1914 | CDR__getStatus(stat); |
deebc67f | 1915 | |
ef79bbde P |
1916 | if (playing) { |
1917 | stat->Type = 0x02; | |
1918 | stat->Status |= 0x80; | |
ef79bbde P |
1919 | } |
1920 | else { | |
deebc67f | 1921 | // BIOS - boot ID (CD type) |
1922 | stat->Type = ti[1].type; | |
1923 | } | |
1924 | ||
1925 | // relative -> absolute time | |
1926 | sect = cddaCurPos; | |
1927 | sec2msf(sect, (char *)stat->Time); | |
1928 | ||
1929 | return 0; | |
1930 | } | |
1931 | ||
1932 | // read CDDA sector into buffer | |
1933 | long CALLBACK ISOreadCDDA(unsigned char m, unsigned char s, unsigned char f, unsigned char *buffer) { | |
1934 | unsigned char msf[3] = {m, s, f}; | |
1935 | unsigned int file, track, track_start = 0; | |
1936 | int ret; | |
1937 | ||
1938 | cddaCurPos = msf2sec((char *)msf); | |
1939 | ||
1940 | // find current track index | |
1941 | for (track = numtracks; ; track--) { | |
1942 | track_start = msf2sec(ti[track].start); | |
1943 | if (track_start <= cddaCurPos) | |
1944 | break; | |
1945 | if (track == 1) | |
1946 | break; | |
1947 | } | |
1948 | ||
1949 | // data tracks play silent | |
1950 | if (ti[track].type != CDDA) { | |
1951 | memset(buffer, 0, CD_FRAMESIZE_RAW); | |
1952 | return 0; | |
1953 | } | |
1954 | ||
1955 | file = 1; | |
1956 | if (multifile) { | |
1957 | // find the file that contains this track | |
1958 | for (file = track; file > 1; file--) | |
1959 | if (ti[file].handle != NULL) | |
1960 | break; | |
ef79bbde P |
1961 | } |
1962 | ||
deebc67f | 1963 | ret = cdimg_read_func(ti[file].handle, ti[track].start_offset, |
1964 | buffer, cddaCurPos - track_start); | |
1965 | if (ret != CD_FRAMESIZE_RAW) { | |
1966 | memset(buffer, 0, CD_FRAMESIZE_RAW); | |
1967 | return -1; | |
1968 | } | |
1969 | ||
1970 | if (cddaBigEndian) { | |
1971 | int i; | |
1972 | unsigned char tmp; | |
1973 | ||
1974 | for (i = 0; i < CD_FRAMESIZE_RAW / 2; i++) { | |
1975 | tmp = buffer[i * 2]; | |
1976 | buffer[i * 2] = buffer[i * 2 + 1]; | |
1977 | buffer[i * 2 + 1] = tmp; | |
1978 | } | |
1979 | } | |
858ad511 | 1980 | |
ef79bbde P |
1981 | return 0; |
1982 | } | |
1983 | ||
1984 | void cdrIsoInit(void) { | |
1985 | CDR_init = ISOinit; | |
1986 | CDR_shutdown = ISOshutdown; | |
1987 | CDR_open = ISOopen; | |
1988 | CDR_close = ISOclose; | |
1989 | CDR_getTN = ISOgetTN; | |
1990 | CDR_getTD = ISOgetTD; | |
1991 | CDR_readTrack = ISOreadTrack; | |
1992 | CDR_getBuffer = ISOgetBuffer; | |
1993 | CDR_play = ISOplay; | |
1994 | CDR_stop = ISOstop; | |
1995 | CDR_getBufferSub = ISOgetBufferSub; | |
1996 | CDR_getStatus = ISOgetStatus; | |
deebc67f | 1997 | CDR_readCDDA = ISOreadCDDA; |
ef79bbde P |
1998 | |
1999 | CDR_getDriveLetter = CDR__getDriveLetter; | |
2000 | CDR_configure = CDR__configure; | |
2001 | CDR_test = CDR__test; | |
2002 | CDR_about = CDR__about; | |
2003 | CDR_setfilename = CDR__setfilename; | |
2004 | ||
2005 | numtracks = 0; | |
2006 | } | |
2007 | ||
2008 | int cdrIsoActive(void) { | |
2009 | return (cdHandle != NULL); | |
2010 | } |