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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 |
94f0c7c5 | 39 | #elif P_HAVE_PTHREAD |
ef79bbde P |
40 | #include <pthread.h> |
41 | #include <sys/time.h> | |
349f7d81 | 42 | #include <unistd.h> |
ef79bbde P |
43 | #endif |
44 | ||
9f47c8ed | 45 | // to enable the USE_READ_THREAD code, fix: |
46 | // - https://github.com/notaz/pcsx_rearmed/issues/257 | |
47 | // - ISOgetBufferSub to not race with async code | |
94f0c7c5 | 48 | #define USE_READ_THREAD 0 //P_HAVE_PTHREAD |
9f47c8ed | 49 | |
226a5691 | 50 | #ifdef USE_LIBRETRO_VFS |
51 | #include <streams/file_stream_transforms.h> | |
52 | #undef fseeko | |
53 | #undef ftello | |
54 | #define ftello rftell | |
55 | #define fseeko rfseek | |
56 | #endif | |
9361a5aa | 57 | |
cc376814 | 58 | #define OFF_T_MSB ((off_t)1 << (sizeof(off_t) * 8 - 1)) |
59 | ||
0c2871a7 | 60 | unsigned int cdrIsoMultidiskCount; |
61 | unsigned int cdrIsoMultidiskSelect; | |
62 | ||
ef79bbde P |
63 | static FILE *cdHandle = NULL; |
64 | static FILE *cddaHandle = NULL; | |
65 | static FILE *subHandle = NULL; | |
66 | ||
67 | static boolean subChanMixed = FALSE; | |
68 | static boolean subChanRaw = FALSE; | |
69 | ||
deebc67f | 70 | static boolean multifile = FALSE; |
71 | ||
81abe4d5 | 72 | static unsigned char cdbuffer[CD_FRAMESIZE_RAW]; |
ef79bbde P |
73 | static unsigned char subbuffer[SUB_FRAMESIZE]; |
74 | ||
38b8102c | 75 | static boolean playing = FALSE; |
ef79bbde | 76 | static boolean cddaBigEndian = FALSE; |
8aa91443 | 77 | /* Frame offset into CD image where pregap data would be found if it was there. |
78 | * If a game seeks there we must *not* return subchannel data since it's | |
79 | * not in the CD image, so that cdrom code can fake subchannel data instead. | |
80 | * XXX: there could be multiple pregaps but PSX dumps only have one? */ | |
81 | static unsigned int pregapOffset; | |
ef79bbde | 82 | |
5b568098 | 83 | static unsigned int cddaCurPos; |
deebc67f | 84 | |
9a92bffb | 85 | // compressed image stuff |
86 | static struct { | |
87 | unsigned char buff_raw[16][CD_FRAMESIZE_RAW]; | |
88 | unsigned char buff_compressed[CD_FRAMESIZE_RAW * 16 + 100]; | |
cc376814 | 89 | off_t *index_table; |
9a92bffb | 90 | unsigned int index_len; |
0877957a | 91 | unsigned int block_shift; |
9a92bffb | 92 | unsigned int current_block; |
93 | unsigned int sector_in_blk; | |
94 | } *compr_img; | |
95 | ||
b0ec2e6d | 96 | #ifdef HAVE_CHD |
ce188d4d | 97 | static struct { |
aeb82099 | 98 | unsigned char *buffer; |
ce188d4d | 99 | chd_file* chd; |
100 | const chd_header* header; | |
101 | unsigned int sectors_per_hunk; | |
aeb82099 | 102 | unsigned int current_hunk[2]; |
103 | unsigned int current_buffer; | |
ce188d4d | 104 | unsigned int sector_in_hunk; |
105 | } *chd_img; | |
b0ec2e6d | 106 | #endif |
ce188d4d | 107 | |
0eacae49 | 108 | static int (*cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector); |
109 | static int (*cdimg_read_sub_func)(FILE *f, int sector); | |
9a92bffb | 110 | |
ef79bbde P |
111 | char* CALLBACK CDR__getDriveLetter(void); |
112 | long CALLBACK CDR__configure(void); | |
113 | long CALLBACK CDR__test(void); | |
114 | void CALLBACK CDR__about(void); | |
115 | long CALLBACK CDR__setfilename(char *filename); | |
116 | long CALLBACK CDR__getStatus(struct CdrStat *stat); | |
117 | ||
19c03d80 | 118 | static void DecodeRawSubData(void); |
119 | ||
ef79bbde | 120 | struct trackinfo { |
deebc67f | 121 | enum {DATA=1, CDDA} type; |
ef79bbde P |
122 | char start[3]; // MSF-format |
123 | char length[3]; // MSF-format | |
38b8102c | 124 | FILE *handle; // for multi-track images CDDA |
f02c57ea | 125 | unsigned int start_offset; // byte offset from start of above file (chd: sector offset) |
ef79bbde P |
126 | }; |
127 | ||
128 | #define MAXTRACKS 100 /* How many tracks can a CD hold? */ | |
129 | ||
130 | static int numtracks = 0; | |
131 | static struct trackinfo ti[MAXTRACKS]; | |
132 | ||
133 | // get a sector from a msf-array | |
134 | static unsigned int msf2sec(char *msf) { | |
135 | return ((msf[0] * 60 + msf[1]) * 75) + msf[2]; | |
136 | } | |
137 | ||
138 | static void sec2msf(unsigned int s, char *msf) { | |
139 | msf[0] = s / 75 / 60; | |
140 | s = s - msf[0] * 75 * 60; | |
141 | msf[1] = s / 75; | |
142 | s = s - msf[1] * 75; | |
143 | msf[2] = s; | |
144 | } | |
145 | ||
146 | // divide a string of xx:yy:zz into m, s, f | |
147 | static void tok2msf(char *time, char *msf) { | |
148 | char *token; | |
149 | ||
150 | token = strtok(time, ":"); | |
151 | if (token) { | |
152 | msf[0] = atoi(token); | |
153 | } | |
154 | else { | |
155 | msf[0] = 0; | |
156 | } | |
157 | ||
158 | token = strtok(NULL, ":"); | |
159 | if (token) { | |
160 | msf[1] = atoi(token); | |
161 | } | |
162 | else { | |
163 | msf[1] = 0; | |
164 | } | |
165 | ||
166 | token = strtok(NULL, ":"); | |
167 | if (token) { | |
168 | msf[2] = atoi(token); | |
169 | } | |
170 | else { | |
171 | msf[2] = 0; | |
172 | } | |
173 | } | |
174 | ||
ef79bbde P |
175 | // this function tries to get the .toc file of the given .bin |
176 | // the necessary data is put into the ti (trackinformation)-array | |
177 | static int parsetoc(const char *isofile) { | |
178 | char tocname[MAXPATHLEN]; | |
179 | FILE *fi; | |
e999be41 | 180 | char linebuf[256], tmp[256], name[256]; |
ef79bbde P |
181 | char *token; |
182 | char time[20], time2[20]; | |
e999be41 | 183 | unsigned int t, sector_offs, sector_size; |
184 | unsigned int current_zero_gap = 0; | |
ef79bbde P |
185 | |
186 | numtracks = 0; | |
187 | ||
188 | // copy name of the iso and change extension from .bin to .toc | |
189 | strncpy(tocname, isofile, sizeof(tocname)); | |
190 | tocname[MAXPATHLEN - 1] = '\0'; | |
191 | if (strlen(tocname) >= 4) { | |
192 | strcpy(tocname + strlen(tocname) - 4, ".toc"); | |
193 | } | |
194 | else { | |
195 | return -1; | |
196 | } | |
197 | ||
226a5691 | 198 | if ((fi = fopen(tocname, "r")) == NULL) { |
ef79bbde P |
199 | // try changing extension to .cue (to satisfy some stupid tutorials) |
200 | strcpy(tocname + strlen(tocname) - 4, ".cue"); | |
226a5691 | 201 | if ((fi = fopen(tocname, "r")) == NULL) { |
ef79bbde P |
202 | // if filename is image.toc.bin, try removing .bin (for Brasero) |
203 | strcpy(tocname, isofile); | |
204 | t = strlen(tocname); | |
205 | if (t >= 8 && strcmp(tocname + t - 8, ".toc.bin") == 0) { | |
206 | tocname[t - 4] = '\0'; | |
226a5691 | 207 | if ((fi = fopen(tocname, "r")) == NULL) { |
ef79bbde P |
208 | return -1; |
209 | } | |
210 | } | |
211 | else { | |
212 | return -1; | |
213 | } | |
214 | } | |
92f43ab0 | 215 | // check if it's really a TOC named as a .cue |
9361a5aa EC |
216 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
217 | token = strtok(linebuf, " "); | |
218 | if (token && strncmp(token, "CD", 2) != 0 && strcmp(token, "CATALOG") != 0) { | |
219 | fclose(fi); | |
220 | return -1; | |
221 | } | |
92f43ab0 | 222 | } |
223 | fseek(fi, 0, SEEK_SET); | |
ef79bbde P |
224 | } |
225 | ||
226 | memset(&ti, 0, sizeof(ti)); | |
227 | cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio | |
228 | ||
e999be41 | 229 | sector_size = CD_FRAMESIZE_RAW; |
19c03d80 | 230 | sector_offs = 2 * 75; |
231 | ||
ef79bbde P |
232 | // parse the .toc file |
233 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
234 | // search for tracks | |
e999be41 | 235 | strncpy(tmp, linebuf, sizeof(linebuf)); |
236 | token = strtok(tmp, " "); | |
ef79bbde P |
237 | |
238 | if (token == NULL) continue; | |
239 | ||
240 | if (!strcmp(token, "TRACK")) { | |
e999be41 | 241 | sector_offs += current_zero_gap; |
242 | current_zero_gap = 0; | |
243 | ||
ef79bbde P |
244 | // get type of track |
245 | token = strtok(NULL, " "); | |
246 | numtracks++; | |
247 | ||
248 | if (!strncmp(token, "MODE2_RAW", 9)) { | |
249 | ti[numtracks].type = DATA; | |
250 | sec2msf(2 * 75, ti[numtracks].start); // assume data track on 0:2:0 | |
251 | ||
252 | // check if this image contains mixed subchannel data | |
253 | token = strtok(NULL, " "); | |
e999be41 | 254 | if (token != NULL && !strncmp(token, "RW", 2)) { |
255 | sector_size = CD_FRAMESIZE_RAW + SUB_FRAMESIZE; | |
ef79bbde | 256 | subChanMixed = TRUE; |
e999be41 | 257 | if (!strncmp(token, "RW_RAW", 6)) |
258 | subChanRaw = TRUE; | |
ef79bbde P |
259 | } |
260 | } | |
261 | else if (!strncmp(token, "AUDIO", 5)) { | |
262 | ti[numtracks].type = CDDA; | |
263 | } | |
264 | } | |
265 | else if (!strcmp(token, "DATAFILE")) { | |
266 | if (ti[numtracks].type == CDDA) { | |
267 | sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2); | |
19c03d80 | 268 | ti[numtracks].start_offset = t; |
e999be41 | 269 | t = t / sector_size + sector_offs; |
ef79bbde P |
270 | sec2msf(t, (char *)&ti[numtracks].start); |
271 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
272 | } | |
273 | else { | |
274 | sscanf(linebuf, "DATAFILE \"%[^\"]\" %8s", name, time); | |
275 | tok2msf((char *)&time, (char *)&ti[numtracks].length); | |
276 | } | |
277 | } | |
278 | else if (!strcmp(token, "FILE")) { | |
279 | sscanf(linebuf, "FILE \"%[^\"]\" #%d %8s %8s", name, &t, time, time2); | |
280 | tok2msf((char *)&time, (char *)&ti[numtracks].start); | |
e999be41 | 281 | t += msf2sec(ti[numtracks].start) * sector_size; |
19c03d80 | 282 | ti[numtracks].start_offset = t; |
e999be41 | 283 | t = t / sector_size + sector_offs; |
ef79bbde P |
284 | sec2msf(t, (char *)&ti[numtracks].start); |
285 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); | |
286 | } | |
e999be41 | 287 | else if (!strcmp(token, "ZERO") || !strcmp(token, "SILENCE")) { |
288 | // skip unneeded optional fields | |
289 | while (token != NULL) { | |
290 | token = strtok(NULL, " "); | |
291 | if (strchr(token, ':') != NULL) | |
292 | break; | |
293 | } | |
294 | if (token != NULL) { | |
295 | tok2msf(token, tmp); | |
296 | current_zero_gap = msf2sec(tmp); | |
297 | } | |
8aa91443 | 298 | if (numtracks > 1) { |
299 | t = ti[numtracks - 1].start_offset; | |
e999be41 | 300 | t /= sector_size; |
8aa91443 | 301 | pregapOffset = t + msf2sec(ti[numtracks - 1].length); |
302 | } | |
19c03d80 | 303 | } |
e999be41 | 304 | else if (!strcmp(token, "START")) { |
305 | token = strtok(NULL, " "); | |
306 | if (token != NULL && strchr(token, ':')) { | |
307 | tok2msf(token, tmp); | |
308 | t = msf2sec(tmp); | |
309 | ti[numtracks].start_offset += (t - current_zero_gap) * sector_size; | |
310 | t = msf2sec(ti[numtracks].start) + t; | |
311 | sec2msf(t, (char *)&ti[numtracks].start); | |
312 | } | |
313 | } | |
ef79bbde P |
314 | } |
315 | ||
316 | fclose(fi); | |
317 | ||
318 | return 0; | |
319 | } | |
320 | ||
321 | // this function tries to get the .cue file of the given .bin | |
322 | // the necessary data is put into the ti (trackinformation)-array | |
323 | static int parsecue(const char *isofile) { | |
324 | char cuename[MAXPATHLEN]; | |
38b8102c | 325 | char filepath[MAXPATHLEN]; |
326 | char *incue_fname; | |
ef79bbde P |
327 | FILE *fi; |
328 | char *token; | |
329 | char time[20]; | |
330 | char *tmp; | |
19c03d80 | 331 | char linebuf[256], tmpb[256], dummy[256]; |
38b8102c | 332 | unsigned int incue_max_len; |
77160d47 | 333 | unsigned int t, file_len, mode, sector_offs; |
334 | unsigned int sector_size = 2352; | |
ef79bbde P |
335 | |
336 | numtracks = 0; | |
337 | ||
338 | // copy name of the iso and change extension from .bin to .cue | |
339 | strncpy(cuename, isofile, sizeof(cuename)); | |
340 | cuename[MAXPATHLEN - 1] = '\0'; | |
341 | if (strlen(cuename) >= 4) { | |
2cc221eb | 342 | // If 'isofile' is a '.cd<X>' file, use it as a .cue file |
343 | // and don't try to search the additional .cue file | |
344 | if (strncasecmp(cuename + strlen(cuename) - 4, ".cd", 3) != 0 ) | |
345 | strcpy(cuename + strlen(cuename) - 4, ".cue"); | |
ef79bbde P |
346 | } |
347 | else { | |
348 | return -1; | |
349 | } | |
350 | ||
226a5691 | 351 | if ((fi = fopen(cuename, "r")) == NULL) { |
ef79bbde P |
352 | return -1; |
353 | } | |
354 | ||
355 | // Some stupid tutorials wrongly tell users to use cdrdao to rip a | |
356 | // "bin/cue" image, which is in fact a "bin/toc" image. So let's check | |
357 | // that... | |
358 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
359 | if (!strncmp(linebuf, "CD_ROM_XA", 9)) { | |
360 | // Don't proceed further, as this is actually a .toc file rather | |
361 | // than a .cue file. | |
362 | fclose(fi); | |
363 | return parsetoc(isofile); | |
364 | } | |
365 | fseek(fi, 0, SEEK_SET); | |
366 | } | |
367 | ||
38b8102c | 368 | // build a path for files referenced in .cue |
369 | strncpy(filepath, cuename, sizeof(filepath)); | |
22bbabf6 | 370 | tmp = strrchr(filepath, '/'); |
38b8102c | 371 | if (tmp == NULL) |
22bbabf6 | 372 | tmp = strrchr(filepath, '\\'); |
373 | if (tmp != NULL) | |
374 | tmp++; | |
375 | else | |
38b8102c | 376 | tmp = filepath; |
377 | *tmp = 0; | |
378 | filepath[sizeof(filepath) - 1] = 0; | |
379 | incue_fname = tmp; | |
380 | incue_max_len = sizeof(filepath) - (tmp - filepath) - 1; | |
381 | ||
ef79bbde P |
382 | memset(&ti, 0, sizeof(ti)); |
383 | ||
19c03d80 | 384 | file_len = 0; |
385 | sector_offs = 2 * 75; | |
386 | ||
ef79bbde P |
387 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
388 | strncpy(dummy, linebuf, sizeof(linebuf)); | |
389 | token = strtok(dummy, " "); | |
390 | ||
391 | if (token == NULL) { | |
392 | continue; | |
393 | } | |
394 | ||
19c03d80 | 395 | if (!strcmp(token, "TRACK")) { |
ef79bbde P |
396 | numtracks++; |
397 | ||
77160d47 | 398 | sector_size = 0; |
ef79bbde P |
399 | if (strstr(linebuf, "AUDIO") != NULL) { |
400 | ti[numtracks].type = CDDA; | |
77160d47 | 401 | sector_size = 2352; |
ef79bbde | 402 | } |
77160d47 | 403 | else if (sscanf(linebuf, " TRACK %u MODE%u/%u", &t, &mode, §or_size) == 3) |
ef79bbde | 404 | ti[numtracks].type = DATA; |
77160d47 | 405 | else { |
406 | SysPrintf(".cue: failed to parse TRACK\n"); | |
407 | ti[numtracks].type = numtracks == 1 ? DATA : CDDA; | |
ef79bbde | 408 | } |
77160d47 | 409 | if (sector_size == 0) |
410 | sector_size = 2352; | |
ef79bbde P |
411 | } |
412 | else if (!strcmp(token, "INDEX")) { | |
77160d47 | 413 | if (sscanf(linebuf, " INDEX %02d %8s", &t, time) != 2) |
414 | SysPrintf(".cue: failed to parse INDEX\n"); | |
19c03d80 | 415 | tok2msf(time, (char *)&ti[numtracks].start); |
ef79bbde | 416 | |
19c03d80 | 417 | t = msf2sec(ti[numtracks].start); |
77160d47 | 418 | ti[numtracks].start_offset = t * sector_size; |
19c03d80 | 419 | t += sector_offs; |
ef79bbde | 420 | sec2msf(t, ti[numtracks].start); |
19c03d80 | 421 | |
422 | // default track length to file length | |
77160d47 | 423 | t = file_len - ti[numtracks].start_offset / sector_size; |
19c03d80 | 424 | sec2msf(t, ti[numtracks].length); |
425 | ||
426 | if (numtracks > 1 && ti[numtracks].handle == NULL) { | |
427 | // this track uses the same file as the last, | |
428 | // start of this track is last track's end | |
429 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
430 | sec2msf(t, ti[numtracks - 1].length); | |
38b8102c | 431 | } |
8aa91443 | 432 | if (numtracks > 1 && pregapOffset == -1) |
77160d47 | 433 | pregapOffset = ti[numtracks].start_offset / sector_size; |
19c03d80 | 434 | } |
435 | else if (!strcmp(token, "PREGAP")) { | |
436 | if (sscanf(linebuf, " PREGAP %8s", time) == 1) { | |
437 | tok2msf(time, dummy); | |
438 | sector_offs += msf2sec(dummy); | |
38b8102c | 439 | } |
8aa91443 | 440 | pregapOffset = -1; // mark to fill track start_offset |
19c03d80 | 441 | } |
442 | else if (!strcmp(token, "FILE")) { | |
9a9bcd78 | 443 | t = sscanf(linebuf, " FILE \"%255[^\"]\"", tmpb); |
385c023b | 444 | if (t != 1) |
9a9bcd78 | 445 | sscanf(linebuf, " FILE %255s", tmpb); |
19c03d80 | 446 | |
6f4557bf | 447 | tmp = strrchr(tmpb, '\\'); |
448 | if (tmp == NULL) | |
449 | tmp = strrchr(tmpb, '/'); | |
450 | if (tmp != NULL) | |
451 | tmp++; | |
452 | else | |
453 | tmp = tmpb; | |
454 | strncpy(incue_fname, tmp, incue_max_len); | |
226a5691 | 455 | ti[numtracks + 1].handle = fopen(filepath, "rb"); |
ef79bbde | 456 | |
19c03d80 | 457 | // update global offset if this is not first file in this .cue |
deebc67f | 458 | if (numtracks + 1 > 1) { |
459 | multifile = 1; | |
19c03d80 | 460 | sector_offs += file_len; |
deebc67f | 461 | } |
19c03d80 | 462 | |
463 | file_len = 0; | |
38b8102c | 464 | if (ti[numtracks + 1].handle == NULL) { |
19c03d80 | 465 | SysPrintf(_("\ncould not open: %s\n"), filepath); |
466 | continue; | |
38b8102c | 467 | } |
19c03d80 | 468 | fseek(ti[numtracks + 1].handle, 0, SEEK_END); |
469 | file_len = ftell(ti[numtracks + 1].handle) / 2352; | |
470 | ||
471 | if (numtracks == 0 && strlen(isofile) >= 4 && | |
2cc221eb | 472 | (strcmp(isofile + strlen(isofile) - 4, ".cue") == 0 || |
473 | strncasecmp(isofile + strlen(isofile) - 4, ".cd", 3) == 0)) { | |
474 | // user selected .cue/.cdX as image file, use it's data track instead | |
38b8102c | 475 | fclose(cdHandle); |
226a5691 | 476 | cdHandle = fopen(filepath, "rb"); |
ef79bbde P |
477 | } |
478 | } | |
479 | } | |
480 | ||
481 | fclose(fi); | |
482 | ||
2cc221eb | 483 | // if there are no tracks detected, then it's not a cue file |
484 | if (!numtracks) | |
485 | return -1; | |
486 | ||
ef79bbde P |
487 | return 0; |
488 | } | |
489 | ||
490 | // this function tries to get the .ccd file of the given .img | |
491 | // the necessary data is put into the ti (trackinformation)-array | |
492 | static int parseccd(const char *isofile) { | |
493 | char ccdname[MAXPATHLEN]; | |
494 | FILE *fi; | |
495 | char linebuf[256]; | |
496 | unsigned int t; | |
497 | ||
498 | numtracks = 0; | |
499 | ||
500 | // copy name of the iso and change extension from .img to .ccd | |
501 | strncpy(ccdname, isofile, sizeof(ccdname)); | |
502 | ccdname[MAXPATHLEN - 1] = '\0'; | |
503 | if (strlen(ccdname) >= 4) { | |
504 | strcpy(ccdname + strlen(ccdname) - 4, ".ccd"); | |
505 | } | |
506 | else { | |
507 | return -1; | |
508 | } | |
509 | ||
226a5691 | 510 | if ((fi = fopen(ccdname, "r")) == NULL) { |
ef79bbde P |
511 | return -1; |
512 | } | |
513 | ||
514 | memset(&ti, 0, sizeof(ti)); | |
515 | ||
516 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { | |
517 | if (!strncmp(linebuf, "[TRACK", 6)){ | |
518 | numtracks++; | |
519 | } | |
520 | else if (!strncmp(linebuf, "MODE=", 5)) { | |
521 | sscanf(linebuf, "MODE=%d", &t); | |
522 | ti[numtracks].type = ((t == 0) ? CDDA : DATA); | |
523 | } | |
524 | else if (!strncmp(linebuf, "INDEX 1=", 8)) { | |
525 | sscanf(linebuf, "INDEX 1=%d", &t); | |
526 | sec2msf(t + 2 * 75, ti[numtracks].start); | |
77160d47 | 527 | ti[numtracks].start_offset = t * 2352; |
ef79bbde P |
528 | |
529 | // If we've already seen another track, this is its end | |
530 | if (numtracks > 1) { | |
531 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); | |
532 | sec2msf(t, ti[numtracks - 1].length); | |
533 | } | |
534 | } | |
535 | } | |
536 | ||
537 | fclose(fi); | |
538 | ||
539 | // Fill out the last track's end based on size | |
540 | if (numtracks >= 1) { | |
541 | fseek(cdHandle, 0, SEEK_END); | |
542 | t = ftell(cdHandle) / 2352 - msf2sec(ti[numtracks].start) + 2 * 75; | |
543 | sec2msf(t, ti[numtracks].length); | |
544 | } | |
545 | ||
546 | return 0; | |
547 | } | |
548 | ||
549 | // this function tries to get the .mds file of the given .mdf | |
550 | // the necessary data is put into the ti (trackinformation)-array | |
551 | static int parsemds(const char *isofile) { | |
552 | char mdsname[MAXPATHLEN]; | |
553 | FILE *fi; | |
554 | unsigned int offset, extra_offset, l, i; | |
555 | unsigned short s; | |
556 | ||
557 | numtracks = 0; | |
558 | ||
559 | // copy name of the iso and change extension from .mdf to .mds | |
560 | strncpy(mdsname, isofile, sizeof(mdsname)); | |
561 | mdsname[MAXPATHLEN - 1] = '\0'; | |
562 | if (strlen(mdsname) >= 4) { | |
563 | strcpy(mdsname + strlen(mdsname) - 4, ".mds"); | |
564 | } | |
565 | else { | |
566 | return -1; | |
567 | } | |
568 | ||
226a5691 | 569 | if ((fi = fopen(mdsname, "rb")) == NULL) { |
ef79bbde P |
570 | return -1; |
571 | } | |
572 | ||
573 | memset(&ti, 0, sizeof(ti)); | |
574 | ||
575 | // check if it's a valid mds file | |
9361a5aa EC |
576 | if (fread(&i, 1, sizeof(i), fi) != sizeof(i)) |
577 | goto fail_io; | |
ef79bbde P |
578 | i = SWAP32(i); |
579 | if (i != 0x4944454D) { | |
580 | // not an valid mds file | |
581 | fclose(fi); | |
582 | return -1; | |
583 | } | |
584 | ||
585 | // get offset to session block | |
586 | fseek(fi, 0x50, SEEK_SET); | |
9361a5aa EC |
587 | if (fread(&offset, 1, sizeof(offset), fi) != sizeof(offset)) |
588 | goto fail_io; | |
ef79bbde P |
589 | offset = SWAP32(offset); |
590 | ||
591 | // get total number of tracks | |
592 | offset += 14; | |
593 | fseek(fi, offset, SEEK_SET); | |
9361a5aa EC |
594 | if (fread(&s, 1, sizeof(s), fi) != sizeof(s)) |
595 | goto fail_io; | |
ef79bbde P |
596 | s = SWAP16(s); |
597 | numtracks = s; | |
598 | ||
599 | // get offset to track blocks | |
600 | fseek(fi, 4, SEEK_CUR); | |
9361a5aa EC |
601 | if (fread(&offset, 1, sizeof(offset), fi) != sizeof(offset)) |
602 | goto fail_io; | |
ef79bbde P |
603 | offset = SWAP32(offset); |
604 | ||
605 | // skip lead-in data | |
606 | while (1) { | |
607 | fseek(fi, offset + 4, SEEK_SET); | |
608 | if (fgetc(fi) < 0xA0) { | |
609 | break; | |
610 | } | |
611 | offset += 0x50; | |
612 | } | |
613 | ||
614 | // check if the image contains mixed subchannel data | |
615 | fseek(fi, offset + 1, SEEK_SET); | |
77160d47 | 616 | subChanMixed = subChanRaw = (fgetc(fi) ? TRUE : FALSE); |
ef79bbde P |
617 | |
618 | // read track data | |
619 | for (i = 1; i <= numtracks; i++) { | |
620 | fseek(fi, offset, SEEK_SET); | |
621 | ||
622 | // get the track type | |
623 | ti[i].type = ((fgetc(fi) == 0xA9) ? CDDA : DATA); | |
624 | fseek(fi, 8, SEEK_CUR); | |
625 | ||
626 | // get the track starting point | |
627 | ti[i].start[0] = fgetc(fi); | |
628 | ti[i].start[1] = fgetc(fi); | |
629 | ti[i].start[2] = fgetc(fi); | |
630 | ||
9361a5aa EC |
631 | if (fread(&extra_offset, 1, sizeof(extra_offset), fi) != sizeof(extra_offset)) |
632 | goto fail_io; | |
ef79bbde P |
633 | extra_offset = SWAP32(extra_offset); |
634 | ||
19c03d80 | 635 | // get track start offset (in .mdf) |
636 | fseek(fi, offset + 0x28, SEEK_SET); | |
9361a5aa EC |
637 | if (fread(&l, 1, sizeof(l), fi) != sizeof(l)) |
638 | goto fail_io; | |
19c03d80 | 639 | l = SWAP32(l); |
77160d47 | 640 | ti[i].start_offset = l; |
19c03d80 | 641 | |
8aa91443 | 642 | // get pregap |
643 | fseek(fi, extra_offset, SEEK_SET); | |
9361a5aa EC |
644 | if (fread(&l, 1, sizeof(l), fi) != sizeof(l)) |
645 | goto fail_io; | |
8aa91443 | 646 | l = SWAP32(l); |
647 | if (l != 0 && i > 1) | |
77160d47 | 648 | pregapOffset = msf2sec(ti[i].start); |
8aa91443 | 649 | |
650 | // get the track length | |
9361a5aa EC |
651 | if (fread(&l, 1, sizeof(l), fi) != sizeof(l)) |
652 | goto fail_io; | |
8aa91443 | 653 | l = SWAP32(l); |
654 | sec2msf(l, ti[i].length); | |
655 | ||
ef79bbde P |
656 | offset += 0x50; |
657 | } | |
ef79bbde P |
658 | fclose(fi); |
659 | return 0; | |
9361a5aa EC |
660 | fail_io: |
661 | #ifndef NDEBUG | |
662 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
663 | #endif | |
664 | fclose(fi); | |
665 | return -1; | |
ef79bbde P |
666 | } |
667 | ||
0877957a | 668 | static int handlepbp(const char *isofile) { |
9a92bffb | 669 | struct { |
670 | unsigned int sig; | |
671 | unsigned int dontcare[8]; | |
672 | unsigned int psar_offs; | |
673 | } pbp_hdr; | |
674 | struct { | |
675 | unsigned char type; | |
676 | unsigned char pad0; | |
677 | unsigned char track; | |
678 | char index0[3]; | |
679 | char pad1; | |
680 | char index1[3]; | |
681 | } toc_entry; | |
682 | struct { | |
683 | unsigned int offset; | |
684 | unsigned int size; | |
685 | unsigned int dontcare[6]; | |
686 | } index_entry; | |
0c2871a7 | 687 | char psar_sig[11]; |
cc376814 | 688 | off_t psisoimg_offs, cdimg_base; |
689 | unsigned int t, cd_length; | |
690 | unsigned int offsettab[8]; | |
58cb1438 | 691 | unsigned int psar_offs, index_entry_size, index_entry_offset; |
9a92bffb | 692 | const char *ext = NULL; |
693 | int i, ret; | |
694 | ||
695 | if (strlen(isofile) >= 4) | |
696 | ext = isofile + strlen(isofile) - 4; | |
697 | if (ext == NULL || (strcmp(ext, ".pbp") != 0 && strcmp(ext, ".PBP") != 0)) | |
698 | return -1; | |
699 | ||
cc376814 | 700 | fseeko(cdHandle, 0, SEEK_SET); |
9726a4af | 701 | |
9a92bffb | 702 | numtracks = 0; |
703 | ||
704 | ret = fread(&pbp_hdr, 1, sizeof(pbp_hdr), cdHandle); | |
705 | if (ret != sizeof(pbp_hdr)) { | |
f29fbd53 | 706 | SysPrintf("failed to read pbp\n"); |
9a92bffb | 707 | goto fail_io; |
708 | } | |
709 | ||
58cb1438 PC |
710 | psar_offs = SWAP32(pbp_hdr.psar_offs); |
711 | ||
712 | ret = fseeko(cdHandle, psar_offs, SEEK_SET); | |
9a92bffb | 713 | if (ret != 0) { |
58cb1438 | 714 | SysPrintf("failed to seek to %x\n", psar_offs); |
9a92bffb | 715 | goto fail_io; |
716 | } | |
717 | ||
58cb1438 | 718 | psisoimg_offs = psar_offs; |
9361a5aa EC |
719 | if (fread(psar_sig, 1, sizeof(psar_sig), cdHandle) != sizeof(psar_sig)) |
720 | goto fail_io; | |
0c2871a7 | 721 | psar_sig[10] = 0; |
722 | if (strcmp(psar_sig, "PSTITLEIMG") == 0) { | |
723 | // multidisk image? | |
58cb1438 | 724 | ret = fseeko(cdHandle, psar_offs + 0x200, SEEK_SET); |
0c2871a7 | 725 | if (ret != 0) { |
58cb1438 | 726 | SysPrintf("failed to seek to %x\n", psar_offs + 0x200); |
0c2871a7 | 727 | goto fail_io; |
728 | } | |
729 | ||
730 | if (fread(&offsettab, 1, sizeof(offsettab), cdHandle) != sizeof(offsettab)) { | |
f29fbd53 | 731 | SysPrintf("failed to read offsettab\n"); |
0c2871a7 | 732 | goto fail_io; |
733 | } | |
734 | ||
735 | for (i = 0; i < sizeof(offsettab) / sizeof(offsettab[0]); i++) { | |
736 | if (offsettab[i] == 0) | |
737 | break; | |
738 | } | |
739 | cdrIsoMultidiskCount = i; | |
740 | if (cdrIsoMultidiskCount == 0) { | |
f29fbd53 | 741 | SysPrintf("multidisk eboot has 0 images?\n"); |
0c2871a7 | 742 | goto fail_io; |
743 | } | |
744 | ||
745 | if (cdrIsoMultidiskSelect >= cdrIsoMultidiskCount) | |
746 | cdrIsoMultidiskSelect = 0; | |
747 | ||
58cb1438 | 748 | psisoimg_offs += SWAP32(offsettab[cdrIsoMultidiskSelect]); |
0c2871a7 | 749 | |
cc376814 | 750 | ret = fseeko(cdHandle, psisoimg_offs, SEEK_SET); |
0c2871a7 | 751 | if (ret != 0) { |
cc376814 | 752 | SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs); |
0c2871a7 | 753 | goto fail_io; |
754 | } | |
755 | ||
9361a5aa EC |
756 | if (fread(psar_sig, 1, sizeof(psar_sig), cdHandle) != sizeof(psar_sig)) |
757 | goto fail_io; | |
0c2871a7 | 758 | psar_sig[10] = 0; |
759 | } | |
760 | ||
761 | if (strcmp(psar_sig, "PSISOIMG00") != 0) { | |
f29fbd53 | 762 | SysPrintf("bad psar_sig: %s\n", psar_sig); |
9a92bffb | 763 | goto fail_io; |
764 | } | |
765 | ||
766 | // seek to TOC | |
cc376814 | 767 | ret = fseeko(cdHandle, psisoimg_offs + 0x800, SEEK_SET); |
9a92bffb | 768 | if (ret != 0) { |
cc376814 | 769 | SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs + 0x800); |
9a92bffb | 770 | goto fail_io; |
771 | } | |
772 | ||
773 | // first 3 entries are special | |
774 | fseek(cdHandle, sizeof(toc_entry), SEEK_CUR); | |
9361a5aa EC |
775 | if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry)) |
776 | goto fail_io; | |
9a92bffb | 777 | numtracks = btoi(toc_entry.index1[0]); |
778 | ||
9361a5aa EC |
779 | if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry)) |
780 | goto fail_io; | |
9a92bffb | 781 | cd_length = btoi(toc_entry.index1[0]) * 60 * 75 + |
782 | btoi(toc_entry.index1[1]) * 75 + btoi(toc_entry.index1[2]); | |
783 | ||
784 | for (i = 1; i <= numtracks; i++) { | |
9361a5aa EC |
785 | if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry)) |
786 | goto fail_io; | |
9a92bffb | 787 | |
788 | ti[i].type = (toc_entry.type == 1) ? CDDA : DATA; | |
789 | ||
790 | ti[i].start_offset = btoi(toc_entry.index0[0]) * 60 * 75 + | |
791 | btoi(toc_entry.index0[1]) * 75 + btoi(toc_entry.index0[2]); | |
77160d47 | 792 | ti[i].start_offset *= 2352; |
9a92bffb | 793 | ti[i].start[0] = btoi(toc_entry.index1[0]); |
794 | ti[i].start[1] = btoi(toc_entry.index1[1]); | |
795 | ti[i].start[2] = btoi(toc_entry.index1[2]); | |
796 | ||
797 | if (i > 1) { | |
798 | t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start); | |
799 | sec2msf(t, ti[i - 1].length); | |
800 | } | |
801 | } | |
77160d47 | 802 | t = cd_length - ti[numtracks].start_offset / 2352; |
9a92bffb | 803 | sec2msf(t, ti[numtracks].length); |
804 | ||
805 | // seek to ISO index | |
cc376814 | 806 | ret = fseeko(cdHandle, psisoimg_offs + 0x4000, SEEK_SET); |
9a92bffb | 807 | if (ret != 0) { |
f29fbd53 | 808 | SysPrintf("failed to seek to ISO index\n"); |
9a92bffb | 809 | goto fail_io; |
810 | } | |
811 | ||
812 | compr_img = calloc(1, sizeof(*compr_img)); | |
813 | if (compr_img == NULL) | |
814 | goto fail_io; | |
815 | ||
0877957a | 816 | compr_img->block_shift = 4; |
9a92bffb | 817 | compr_img->current_block = (unsigned int)-1; |
818 | ||
819 | compr_img->index_len = (0x100000 - 0x4000) / sizeof(index_entry); | |
820 | compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); | |
821 | if (compr_img->index_table == NULL) | |
822 | goto fail_io; | |
823 | ||
0c2871a7 | 824 | cdimg_base = psisoimg_offs + 0x100000; |
9a92bffb | 825 | for (i = 0; i < compr_img->index_len; i++) { |
826 | ret = fread(&index_entry, 1, sizeof(index_entry), cdHandle); | |
827 | if (ret != sizeof(index_entry)) { | |
f29fbd53 | 828 | SysPrintf("failed to read index_entry #%d\n", i); |
9a92bffb | 829 | goto fail_index; |
830 | } | |
831 | ||
58cb1438 PC |
832 | index_entry_size = SWAP32(index_entry.size); |
833 | index_entry_offset = SWAP32(index_entry.offset); | |
834 | ||
835 | if (index_entry_size == 0) | |
9a92bffb | 836 | break; |
837 | ||
58cb1438 | 838 | compr_img->index_table[i] = cdimg_base + index_entry_offset; |
9a92bffb | 839 | } |
58cb1438 | 840 | compr_img->index_table[i] = cdimg_base + index_entry_offset + index_entry_size; |
9a92bffb | 841 | |
842 | return 0; | |
843 | ||
844 | fail_index: | |
845 | free(compr_img->index_table); | |
846 | compr_img->index_table = NULL; | |
9361a5aa EC |
847 | goto done; |
848 | ||
9a92bffb | 849 | fail_io: |
9361a5aa EC |
850 | #ifndef NDEBUG |
851 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
852 | #endif | |
853 | ||
854 | done: | |
0877957a | 855 | if (compr_img != NULL) { |
856 | free(compr_img); | |
857 | compr_img = NULL; | |
858 | } | |
859 | return -1; | |
860 | } | |
861 | ||
862 | static int handlecbin(const char *isofile) { | |
863 | struct | |
864 | { | |
865 | char magic[4]; | |
866 | unsigned int header_size; | |
867 | unsigned long long total_bytes; | |
868 | unsigned int block_size; | |
869 | unsigned char ver; // 1 | |
870 | unsigned char align; | |
871 | unsigned char rsv_06[2]; | |
872 | } ciso_hdr; | |
873 | const char *ext = NULL; | |
cc376814 | 874 | unsigned int *index_table = NULL; |
0c2871a7 | 875 | unsigned int index = 0, plain; |
0877957a | 876 | int i, ret; |
877 | ||
878 | if (strlen(isofile) >= 5) | |
879 | ext = isofile + strlen(isofile) - 5; | |
880 | if (ext == NULL || (strcasecmp(ext + 1, ".cbn") != 0 && strcasecmp(ext, ".cbin") != 0)) | |
881 | return -1; | |
882 | ||
9726a4af | 883 | fseek(cdHandle, 0, SEEK_SET); |
884 | ||
0877957a | 885 | ret = fread(&ciso_hdr, 1, sizeof(ciso_hdr), cdHandle); |
886 | if (ret != sizeof(ciso_hdr)) { | |
f29fbd53 | 887 | SysPrintf("failed to read ciso header\n"); |
0877957a | 888 | return -1; |
889 | } | |
890 | ||
891 | if (strncmp(ciso_hdr.magic, "CISO", 4) != 0 || ciso_hdr.total_bytes <= 0 || ciso_hdr.block_size <= 0) { | |
f29fbd53 | 892 | SysPrintf("bad ciso header\n"); |
0877957a | 893 | return -1; |
894 | } | |
895 | if (ciso_hdr.header_size != 0 && ciso_hdr.header_size != sizeof(ciso_hdr)) { | |
cc376814 | 896 | ret = fseeko(cdHandle, ciso_hdr.header_size, SEEK_SET); |
0877957a | 897 | if (ret != 0) { |
f29fbd53 | 898 | SysPrintf("failed to seek to %x\n", ciso_hdr.header_size); |
0877957a | 899 | return -1; |
900 | } | |
901 | } | |
902 | ||
903 | compr_img = calloc(1, sizeof(*compr_img)); | |
904 | if (compr_img == NULL) | |
905 | goto fail_io; | |
906 | ||
907 | compr_img->block_shift = 0; | |
908 | compr_img->current_block = (unsigned int)-1; | |
909 | ||
910 | compr_img->index_len = ciso_hdr.total_bytes / ciso_hdr.block_size; | |
cc376814 | 911 | index_table = malloc((compr_img->index_len + 1) * sizeof(index_table[0])); |
912 | if (index_table == NULL) | |
0877957a | 913 | goto fail_io; |
914 | ||
cc376814 | 915 | ret = fread(index_table, sizeof(index_table[0]), compr_img->index_len, cdHandle); |
0877957a | 916 | if (ret != compr_img->index_len) { |
f29fbd53 | 917 | SysPrintf("failed to read index table\n"); |
0877957a | 918 | goto fail_index; |
919 | } | |
920 | ||
cc376814 | 921 | compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); |
922 | if (compr_img->index_table == NULL) | |
923 | goto fail_index; | |
924 | ||
0877957a | 925 | for (i = 0; i < compr_img->index_len + 1; i++) { |
cc376814 | 926 | index = index_table[i]; |
0877957a | 927 | plain = index & 0x80000000; |
928 | index &= 0x7fffffff; | |
cc376814 | 929 | compr_img->index_table[i] = (off_t)index << ciso_hdr.align; |
930 | if (plain) | |
931 | compr_img->index_table[i] |= OFF_T_MSB; | |
0877957a | 932 | } |
0877957a | 933 | |
934 | return 0; | |
935 | ||
936 | fail_index: | |
cc376814 | 937 | free(index_table); |
0877957a | 938 | fail_io: |
939 | if (compr_img != NULL) { | |
940 | free(compr_img); | |
941 | compr_img = NULL; | |
942 | } | |
9a92bffb | 943 | return -1; |
944 | } | |
945 | ||
b0ec2e6d | 946 | #ifdef HAVE_CHD |
ce188d4d | 947 | static int handlechd(const char *isofile) { |
6658ddcf | 948 | int frame_offset = 150; |
949 | int file_offset = 0; | |
950 | ||
ce188d4d | 951 | chd_img = calloc(1, sizeof(*chd_img)); |
952 | if (chd_img == NULL) | |
953 | goto fail_io; | |
954 | ||
955 | if(chd_open(isofile, CHD_OPEN_READ, NULL, &chd_img->chd) != CHDERR_NONE) | |
1d2757f4 | 956 | goto fail_io; |
957 | ||
958 | if (Config.CHD_Precache && (chd_precache(chd_img->chd) != CHDERR_NONE)) | |
959 | goto fail_io; | |
ce188d4d | 960 | |
aeb82099 | 961 | chd_img->header = chd_get_header(chd_img->chd); |
ce188d4d | 962 | |
aeb82099 | 963 | chd_img->buffer = malloc(chd_img->header->hunkbytes * 2); |
964 | if (chd_img->buffer == NULL) | |
ce188d4d | 965 | goto fail_io; |
966 | ||
aeb82099 | 967 | chd_img->sectors_per_hunk = chd_img->header->hunkbytes / (CD_FRAMESIZE_RAW + SUB_FRAMESIZE); |
968 | chd_img->current_hunk[0] = (unsigned int)-1; | |
969 | chd_img->current_hunk[1] = (unsigned int)-1; | |
ce188d4d | 970 | |
aeb82099 | 971 | cddaBigEndian = TRUE; |
ce188d4d | 972 | |
973 | numtracks = 0; | |
ce188d4d | 974 | memset(ti, 0, sizeof(ti)); |
975 | ||
976 | while (1) | |
977 | { | |
978 | struct { | |
979 | char type[64]; | |
980 | char subtype[32]; | |
981 | char pgtype[32]; | |
982 | char pgsub[32]; | |
983 | uint32_t track; | |
984 | uint32_t frames; | |
985 | uint32_t pregap; | |
986 | uint32_t postgap; | |
987 | } md = {}; | |
988 | char meta[256]; | |
989 | uint32_t meta_size = 0; | |
990 | ||
991 | if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA2_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE) | |
992 | sscanf(meta, CDROM_TRACK_METADATA2_FORMAT, &md.track, md.type, md.subtype, &md.frames, &md.pregap, md.pgtype, md.pgsub, &md.postgap); | |
993 | else if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE) | |
994 | sscanf(meta, CDROM_TRACK_METADATA_FORMAT, &md.track, md.type, md.subtype, &md.frames); | |
995 | else | |
996 | break; | |
997 | ||
75d5614b | 998 | SysPrintf("chd: %s\n", meta); |
999 | ||
1000 | if (md.track == 1) { | |
75d5614b | 1001 | if (!strncmp(md.subtype, "RW", 2)) { |
1002 | subChanMixed = TRUE; | |
1003 | if (!strcmp(md.subtype, "RW_RAW")) | |
1004 | subChanRaw = TRUE; | |
1005 | } | |
1006 | } | |
ce188d4d | 1007 | |
055b81e1 | 1008 | ti[md.track].type = !strncmp(md.type, "AUDIO", 5) ? CDDA : DATA; |
ce188d4d | 1009 | |
055b81e1 | 1010 | sec2msf(frame_offset + md.pregap, ti[md.track].start); |
1011 | sec2msf(md.frames, ti[md.track].length); | |
ce188d4d | 1012 | |
6658ddcf | 1013 | ti[md.track].start_offset = file_offset + md.pregap; |
ce188d4d | 1014 | |
6658ddcf | 1015 | // XXX: what about postgap? |
1016 | frame_offset += md.frames; | |
1017 | file_offset += md.frames; | |
ce188d4d | 1018 | numtracks++; |
1019 | } | |
1020 | ||
1021 | if (numtracks) | |
1022 | return 0; | |
1023 | ||
1024 | fail_io: | |
1025 | if (chd_img != NULL) { | |
1026 | free(chd_img->buffer); | |
1027 | free(chd_img); | |
1028 | chd_img = NULL; | |
1029 | } | |
1030 | return -1; | |
1031 | } | |
b0ec2e6d | 1032 | #endif |
ce188d4d | 1033 | |
ef79bbde P |
1034 | // this function tries to get the .sub file of the given .img |
1035 | static int opensubfile(const char *isoname) { | |
1036 | char subname[MAXPATHLEN]; | |
1037 | ||
1038 | // copy name of the iso and change extension from .img to .sub | |
1039 | strncpy(subname, isoname, sizeof(subname)); | |
1040 | subname[MAXPATHLEN - 1] = '\0'; | |
1041 | if (strlen(subname) >= 4) { | |
1042 | strcpy(subname + strlen(subname) - 4, ".sub"); | |
1043 | } | |
1044 | else { | |
1045 | return -1; | |
1046 | } | |
1047 | ||
226a5691 | 1048 | subHandle = fopen(subname, "rb"); |
ef79bbde P |
1049 | if (subHandle == NULL) { |
1050 | return -1; | |
1051 | } | |
1052 | ||
1053 | return 0; | |
1054 | } | |
1055 | ||
ae4e7dc9 | 1056 | static int opensbifile(const char *isoname) { |
ba1cce07 | 1057 | char sbiname[MAXPATHLEN], disknum[MAXPATHLEN] = "0"; |
ae4e7dc9 | 1058 | int s; |
1059 | ||
1060 | strncpy(sbiname, isoname, sizeof(sbiname)); | |
1061 | sbiname[MAXPATHLEN - 1] = '\0'; | |
1062 | if (strlen(sbiname) >= 4) { | |
ba1cce07 S |
1063 | if (cdrIsoMultidiskCount > 1) { |
1064 | sprintf(disknum, "_%i.sbi", cdrIsoMultidiskSelect + 1); | |
1065 | strcpy(sbiname + strlen(sbiname) - 4, disknum); | |
1066 | } | |
1067 | else | |
1068 | strcpy(sbiname + strlen(sbiname) - 4, ".sbi"); | |
ae4e7dc9 | 1069 | } |
1070 | else { | |
1071 | return -1; | |
1072 | } | |
1073 | ||
1074 | fseek(cdHandle, 0, SEEK_END); | |
1075 | s = ftell(cdHandle) / 2352; | |
1076 | ||
1077 | return LoadSBI(sbiname, s); | |
1078 | } | |
1079 | ||
78bb116f | 1080 | #if !USE_READ_THREAD |
679b71e2 JW |
1081 | static void readThreadStop() {} |
1082 | static void readThreadStart() {} | |
1083 | #else | |
1084 | static pthread_t read_thread_id; | |
1085 | ||
1086 | static pthread_cond_t read_thread_msg_avail; | |
1087 | static pthread_cond_t read_thread_msg_done; | |
1088 | static pthread_mutex_t read_thread_msg_lock; | |
1089 | ||
1090 | static pthread_cond_t sectorbuffer_cond; | |
1091 | static pthread_mutex_t sectorbuffer_lock; | |
1092 | ||
1093 | static boolean read_thread_running = FALSE; | |
1094 | static int read_thread_sector_start = -1; | |
1095 | static int read_thread_sector_end = -1; | |
1096 | ||
1097 | typedef struct { | |
1098 | int sector; | |
1099 | long ret; | |
1100 | unsigned char data[CD_FRAMESIZE_RAW]; | |
1101 | } SectorBufferEntry; | |
1102 | ||
1103 | #define SECTOR_BUFFER_SIZE 4096 | |
1104 | ||
1105 | static SectorBufferEntry *sectorbuffer; | |
1106 | static size_t sectorbuffer_index; | |
1107 | ||
1108 | int (*sync_cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector); | |
1109 | unsigned char *(*sync_CDR_getBuffer)(void); | |
1110 | ||
1111 | static unsigned char * CALLBACK ISOgetBuffer_async(void); | |
1112 | static int cdread_async(FILE *f, unsigned int base, void *dest, int sector); | |
1113 | ||
1114 | static void *readThreadMain(void *param) { | |
1115 | int max_sector = -1; | |
1116 | int requested_sector_start = -1; | |
1117 | int requested_sector_end = -1; | |
1118 | int last_read_sector = -1; | |
1119 | int index = 0; | |
1120 | ||
1121 | int ra_sector = -1; | |
1122 | int max_ra = 128; | |
1123 | int initial_ra = 1; | |
1124 | int speedmult_ra = 4; | |
1125 | ||
1126 | int ra_count = 0; | |
1127 | int how_far_ahead = 0; | |
1128 | ||
1129 | unsigned char tmpdata[CD_FRAMESIZE_RAW]; | |
1130 | long ret; | |
1131 | ||
1132 | max_sector = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length); | |
1133 | ||
1134 | while(1) { | |
1135 | pthread_mutex_lock(&read_thread_msg_lock); | |
1136 | ||
1137 | // If we don't have readahead and we don't have a sector request, wait for one. | |
1138 | // If we still have readahead to go, don't block, just keep going. | |
1139 | // And if we ever have a sector request pending, acknowledge and reset it. | |
1140 | ||
1141 | if (!ra_count) { | |
1142 | if (read_thread_sector_start == -1 && read_thread_running) { | |
1143 | pthread_cond_wait(&read_thread_msg_avail, &read_thread_msg_lock); | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | if (read_thread_sector_start != -1) { | |
1148 | requested_sector_start = read_thread_sector_start; | |
1149 | requested_sector_end = read_thread_sector_end; | |
1150 | read_thread_sector_start = -1; | |
1151 | read_thread_sector_end = -1; | |
1152 | pthread_cond_signal(&read_thread_msg_done); | |
1153 | } | |
1154 | ||
1155 | pthread_mutex_unlock(&read_thread_msg_lock); | |
1156 | ||
1157 | if (!read_thread_running) | |
1158 | break; | |
1159 | ||
1160 | // Readahead code, based on the implementation in mednafen psx's cdromif.cpp | |
1161 | if (requested_sector_start != -1) { | |
1162 | if (last_read_sector != -1 && last_read_sector == (requested_sector_start - 1)) { | |
1163 | how_far_ahead = ra_sector - requested_sector_end; | |
1164 | ||
1165 | if(how_far_ahead <= max_ra) | |
1166 | ra_count = (max_ra - how_far_ahead + 1 ? max_ra - how_far_ahead + 1 : speedmult_ra); | |
1167 | else | |
1168 | ra_count++; | |
1169 | } else if (requested_sector_end != last_read_sector) { | |
1170 | ra_sector = requested_sector_end; | |
1171 | ra_count = initial_ra; | |
1172 | } | |
1173 | ||
1174 | last_read_sector = requested_sector_end; | |
1175 | } | |
1176 | ||
00e69290 JW |
1177 | index = ra_sector % SECTOR_BUFFER_SIZE; |
1178 | ||
679b71e2 JW |
1179 | // check for end of CD |
1180 | if (ra_count && ra_sector >= max_sector) { | |
1181 | ra_count = 0; | |
00e69290 JW |
1182 | pthread_mutex_lock(§orbuffer_lock); |
1183 | sectorbuffer[index].ret = -1; | |
1184 | sectorbuffer[index].sector = ra_sector; | |
1185 | pthread_cond_signal(§orbuffer_cond); | |
1186 | pthread_mutex_unlock(§orbuffer_lock); | |
679b71e2 JW |
1187 | } |
1188 | ||
1189 | if (ra_count) { | |
679b71e2 JW |
1190 | pthread_mutex_lock(§orbuffer_lock); |
1191 | if (sectorbuffer[index].sector != ra_sector) { | |
1192 | pthread_mutex_unlock(§orbuffer_lock); | |
1193 | ||
1194 | ret = sync_cdimg_read_func(cdHandle, 0, tmpdata, ra_sector); | |
1195 | ||
1196 | pthread_mutex_lock(§orbuffer_lock); | |
1197 | sectorbuffer[index].ret = ret; | |
1198 | sectorbuffer[index].sector = ra_sector; | |
1199 | memcpy(sectorbuffer[index].data, tmpdata, CD_FRAMESIZE_RAW); | |
1200 | } | |
1201 | pthread_cond_signal(§orbuffer_cond); | |
1202 | pthread_mutex_unlock(§orbuffer_lock); | |
1203 | ||
1204 | ra_sector++; | |
1205 | ra_count--; | |
1206 | } | |
1207 | } | |
1208 | ||
1209 | return NULL; | |
1210 | } | |
1211 | ||
1212 | static void readThreadStop() { | |
1213 | if (read_thread_running == TRUE) { | |
1214 | read_thread_running = FALSE; | |
1215 | pthread_cond_signal(&read_thread_msg_avail); | |
1216 | pthread_join(read_thread_id, NULL); | |
1217 | } | |
1218 | ||
1219 | pthread_cond_destroy(&read_thread_msg_done); | |
1220 | pthread_cond_destroy(&read_thread_msg_avail); | |
1221 | pthread_mutex_destroy(&read_thread_msg_lock); | |
1222 | ||
1223 | pthread_cond_destroy(§orbuffer_cond); | |
1224 | pthread_mutex_destroy(§orbuffer_lock); | |
1225 | ||
1226 | CDR_getBuffer = sync_CDR_getBuffer; | |
1227 | cdimg_read_func = sync_cdimg_read_func; | |
1228 | ||
1229 | free(sectorbuffer); | |
1230 | sectorbuffer = NULL; | |
1231 | } | |
1232 | ||
1233 | static void readThreadStart() { | |
1234 | SysPrintf("Starting async CD thread\n"); | |
1235 | ||
1236 | if (read_thread_running == TRUE) | |
1237 | return; | |
1238 | ||
1239 | read_thread_running = TRUE; | |
1240 | read_thread_sector_start = -1; | |
1241 | read_thread_sector_end = -1; | |
1242 | sectorbuffer_index = 0; | |
1243 | ||
1244 | sectorbuffer = calloc(SECTOR_BUFFER_SIZE, sizeof(SectorBufferEntry)); | |
1245 | if(!sectorbuffer) | |
1246 | goto error; | |
1247 | ||
1248 | sectorbuffer[0].sector = -1; // Otherwise we might think we've already fetched sector 0! | |
1249 | ||
1250 | sync_CDR_getBuffer = CDR_getBuffer; | |
1251 | CDR_getBuffer = ISOgetBuffer_async; | |
1252 | sync_cdimg_read_func = cdimg_read_func; | |
1253 | cdimg_read_func = cdread_async; | |
1254 | ||
1255 | if (pthread_cond_init(&read_thread_msg_avail, NULL) || | |
1256 | pthread_cond_init(&read_thread_msg_done, NULL) || | |
1257 | pthread_mutex_init(&read_thread_msg_lock, NULL) || | |
1258 | pthread_cond_init(§orbuffer_cond, NULL) || | |
1259 | pthread_mutex_init(§orbuffer_lock, NULL) || | |
1260 | pthread_create(&read_thread_id, NULL, readThreadMain, NULL)) | |
1261 | goto error; | |
1262 | ||
1263 | return; | |
1264 | ||
1265 | error: | |
1266 | SysPrintf("Error starting async CD thread\n"); | |
1267 | SysPrintf("Falling back to sync\n"); | |
1268 | ||
1269 | readThreadStop(); | |
1270 | } | |
1271 | #endif | |
1272 | ||
77160d47 | 1273 | static int cdread_normal(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1274 | { |
0eacae49 | 1275 | int ret; |
1276 | if (fseek(f, base + sector * CD_FRAMESIZE_RAW, SEEK_SET)) | |
1277 | goto fail_io; | |
1278 | ret = fread(dest, 1, CD_FRAMESIZE_RAW, f); | |
1279 | if (ret <= 0) | |
1280 | goto fail_io; | |
1281 | return ret; | |
1282 | ||
1283 | fail_io: | |
1284 | // often happens in cdda gaps of a split cue/bin, so not logged | |
1285 | //SysPrintf("File IO error %d, base %u, sector %u\n", errno, base, sector); | |
1286 | return -1; | |
9a92bffb | 1287 | } |
1288 | ||
77160d47 | 1289 | static int cdread_sub_mixed(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1290 | { |
1291 | int ret; | |
1292 | ||
0eacae49 | 1293 | if (fseek(f, base + sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE), SEEK_SET)) |
1294 | goto fail_io; | |
81abe4d5 | 1295 | ret = fread(dest, 1, CD_FRAMESIZE_RAW, f); |
0eacae49 | 1296 | if (ret <= 0) |
1297 | goto fail_io; | |
1298 | return ret; | |
1299 | ||
1300 | fail_io: | |
1301 | //SysPrintf("File IO error %d, base %u, sector %u\n", errno, base, sector); | |
1302 | return -1; | |
1303 | } | |
1304 | ||
1305 | static int cdread_sub_sub_mixed(FILE *f, int sector) | |
1306 | { | |
1307 | if (fseek(f, sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + CD_FRAMESIZE_RAW, SEEK_SET)) | |
1308 | goto fail_io; | |
9361a5aa EC |
1309 | if (fread(subbuffer, 1, SUB_FRAMESIZE, f) != SUB_FRAMESIZE) |
1310 | goto fail_io; | |
9a92bffb | 1311 | |
0eacae49 | 1312 | return SUB_FRAMESIZE; |
9361a5aa EC |
1313 | |
1314 | fail_io: | |
0eacae49 | 1315 | SysPrintf("subchannel: file IO error %d, sector %u\n", errno, sector); |
1316 | return -1; | |
9a92bffb | 1317 | } |
1318 | ||
2dd6a826 | 1319 | static int uncompress2_pcsx(void *out, unsigned long *out_size, void *in, unsigned long in_size) |
9a92bffb | 1320 | { |
1321 | static z_stream z; | |
1322 | int ret = 0; | |
1323 | ||
1324 | if (z.zalloc == NULL) { | |
1325 | // XXX: one-time leak here.. | |
1326 | z.next_in = Z_NULL; | |
1327 | z.avail_in = 0; | |
1328 | z.zalloc = Z_NULL; | |
1329 | z.zfree = Z_NULL; | |
1330 | z.opaque = Z_NULL; | |
1331 | ret = inflateInit2(&z, -15); | |
1332 | } | |
1333 | else | |
1334 | ret = inflateReset(&z); | |
1335 | if (ret != Z_OK) | |
1336 | return ret; | |
1337 | ||
1338 | z.next_in = in; | |
1339 | z.avail_in = in_size; | |
1340 | z.next_out = out; | |
1341 | z.avail_out = *out_size; | |
1342 | ||
1343 | ret = inflate(&z, Z_NO_FLUSH); | |
1344 | //inflateEnd(&z); | |
1345 | ||
1346 | *out_size -= z.avail_out; | |
1347 | return ret == 1 ? 0 : ret; | |
1348 | } | |
1349 | ||
77160d47 | 1350 | static int cdread_compressed(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1351 | { |
0877957a | 1352 | unsigned long cdbuffer_size, cdbuffer_size_expect; |
cc376814 | 1353 | unsigned int size; |
0877957a | 1354 | int is_compressed; |
cc376814 | 1355 | off_t start_byte; |
9a92bffb | 1356 | int ret, block; |
1357 | ||
77160d47 | 1358 | if (base) |
1359 | sector += base / 2352; | |
1360 | ||
0877957a | 1361 | block = sector >> compr_img->block_shift; |
1362 | compr_img->sector_in_blk = sector & ((1 << compr_img->block_shift) - 1); | |
9a92bffb | 1363 | |
1364 | if (block == compr_img->current_block) { | |
1365 | //printf("hit sect %d\n", sector); | |
1366 | goto finish; | |
1367 | } | |
1368 | ||
1369 | if (sector >= compr_img->index_len * 16) { | |
f29fbd53 | 1370 | SysPrintf("sector %d is past img end\n", sector); |
9a92bffb | 1371 | return -1; |
1372 | } | |
1373 | ||
cc376814 | 1374 | start_byte = compr_img->index_table[block] & ~OFF_T_MSB; |
1375 | if (fseeko(cdHandle, start_byte, SEEK_SET) != 0) { | |
1376 | SysPrintf("seek error for block %d at %llx: ", | |
1377 | block, (long long)start_byte); | |
9a92bffb | 1378 | perror(NULL); |
1379 | return -1; | |
1380 | } | |
1381 | ||
cc376814 | 1382 | is_compressed = !(compr_img->index_table[block] & OFF_T_MSB); |
1383 | size = (compr_img->index_table[block + 1] & ~OFF_T_MSB) - start_byte; | |
9a92bffb | 1384 | if (size > sizeof(compr_img->buff_compressed)) { |
f29fbd53 | 1385 | SysPrintf("block %d is too large: %u\n", block, size); |
9a92bffb | 1386 | return -1; |
1387 | } | |
1388 | ||
0877957a | 1389 | if (fread(is_compressed ? compr_img->buff_compressed : compr_img->buff_raw[0], |
1390 | 1, size, cdHandle) != size) { | |
f29fbd53 | 1391 | SysPrintf("read error for block %d at %x: ", block, start_byte); |
9a92bffb | 1392 | perror(NULL); |
1393 | return -1; | |
1394 | } | |
1395 | ||
0877957a | 1396 | if (is_compressed) { |
1397 | cdbuffer_size_expect = sizeof(compr_img->buff_raw[0]) << compr_img->block_shift; | |
1398 | cdbuffer_size = cdbuffer_size_expect; | |
2dd6a826 | 1399 | ret = uncompress2_pcsx(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size); |
0877957a | 1400 | if (ret != 0) { |
f29fbd53 | 1401 | SysPrintf("uncompress failed with %d for block %d, sector %d\n", |
0877957a | 1402 | ret, block, sector); |
1403 | return -1; | |
1404 | } | |
1405 | if (cdbuffer_size != cdbuffer_size_expect) | |
f29fbd53 | 1406 | SysPrintf("cdbuffer_size: %lu != %lu, sector %d\n", cdbuffer_size, |
0877957a | 1407 | cdbuffer_size_expect, sector); |
9a92bffb | 1408 | } |
9a92bffb | 1409 | |
1410 | // done at last! | |
1411 | compr_img->current_block = block; | |
1412 | ||
1413 | finish: | |
1414 | if (dest != cdbuffer) // copy avoid HACK | |
81abe4d5 | 1415 | memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk], |
1416 | CD_FRAMESIZE_RAW); | |
1417 | return CD_FRAMESIZE_RAW; | |
9a92bffb | 1418 | } |
1419 | ||
b0ec2e6d | 1420 | #ifdef HAVE_CHD |
aeb82099 | 1421 | static unsigned char *chd_get_sector(unsigned int current_buffer, unsigned int sector_in_hunk) |
1422 | { | |
1423 | return chd_img->buffer | |
1424 | + current_buffer * chd_img->header->hunkbytes | |
1425 | + sector_in_hunk * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE); | |
1426 | } | |
1427 | ||
ce188d4d | 1428 | static int cdread_chd(FILE *f, unsigned int base, void *dest, int sector) |
1429 | { | |
1430 | int hunk; | |
1431 | ||
f02c57ea | 1432 | sector += base; |
ce188d4d | 1433 | |
1434 | hunk = sector / chd_img->sectors_per_hunk; | |
1435 | chd_img->sector_in_hunk = sector % chd_img->sectors_per_hunk; | |
1436 | ||
aeb82099 | 1437 | if (hunk == chd_img->current_hunk[0]) |
1438 | chd_img->current_buffer = 0; | |
1439 | else if (hunk == chd_img->current_hunk[1]) | |
1440 | chd_img->current_buffer = 1; | |
1441 | else | |
055b81e1 | 1442 | { |
aeb82099 | 1443 | chd_read(chd_img->chd, hunk, chd_img->buffer + |
1444 | chd_img->current_buffer * chd_img->header->hunkbytes); | |
1445 | chd_img->current_hunk[chd_img->current_buffer] = hunk; | |
055b81e1 | 1446 | } |
ce188d4d | 1447 | |
ce188d4d | 1448 | if (dest != cdbuffer) // copy avoid HACK |
aeb82099 | 1449 | memcpy(dest, chd_get_sector(chd_img->current_buffer, chd_img->sector_in_hunk), |
ce188d4d | 1450 | CD_FRAMESIZE_RAW); |
1451 | return CD_FRAMESIZE_RAW; | |
1452 | } | |
0eacae49 | 1453 | |
1454 | static int cdread_sub_chd(FILE *f, int sector) | |
1455 | { | |
aeb82099 | 1456 | unsigned int sector_in_hunk; |
1457 | unsigned int buffer; | |
0eacae49 | 1458 | int hunk; |
1459 | ||
1460 | if (!subChanMixed) | |
1461 | return -1; | |
1462 | ||
1463 | hunk = sector / chd_img->sectors_per_hunk; | |
aeb82099 | 1464 | sector_in_hunk = sector % chd_img->sectors_per_hunk; |
0eacae49 | 1465 | |
aeb82099 | 1466 | if (hunk == chd_img->current_hunk[0]) |
1467 | buffer = 0; | |
1468 | else if (hunk == chd_img->current_hunk[1]) | |
1469 | buffer = 1; | |
1470 | else | |
0eacae49 | 1471 | { |
aeb82099 | 1472 | buffer = chd_img->current_buffer ^ 1; |
1473 | chd_read(chd_img->chd, hunk, chd_img->buffer + | |
1474 | buffer * chd_img->header->hunkbytes); | |
1475 | chd_img->current_hunk[buffer] = hunk; | |
0eacae49 | 1476 | } |
1477 | ||
aeb82099 | 1478 | memcpy(subbuffer, chd_get_sector(buffer, sector_in_hunk) + CD_FRAMESIZE_RAW, SUB_FRAMESIZE); |
0eacae49 | 1479 | return SUB_FRAMESIZE; |
1480 | } | |
b0ec2e6d | 1481 | #endif |
5b568098 | 1482 | |
77160d47 | 1483 | static int cdread_2048(FILE *f, unsigned int base, void *dest, int sector) |
9a92bffb | 1484 | { |
1485 | int ret; | |
1486 | ||
77160d47 | 1487 | fseek(f, base + sector * 2048, SEEK_SET); |
81abe4d5 | 1488 | ret = fread((char *)dest + 12 * 2, 1, 2048, f); |
9a92bffb | 1489 | |
1490 | // not really necessary, fake mode 2 header | |
81abe4d5 | 1491 | memset(cdbuffer, 0, 12 * 2); |
1492 | sec2msf(sector + 2 * 75, (char *)&cdbuffer[12]); | |
1493 | cdbuffer[12 + 3] = 1; | |
9a92bffb | 1494 | |
1f665cdd | 1495 | return 12*2 + ret; |
9a92bffb | 1496 | } |
1497 | ||
78bb116f | 1498 | #if USE_READ_THREAD |
679b71e2 JW |
1499 | |
1500 | static int cdread_async(FILE *f, unsigned int base, void *dest, int sector) { | |
1501 | boolean found = FALSE; | |
1502 | int i = sector % SECTOR_BUFFER_SIZE; | |
1503 | long ret; | |
1504 | ||
1505 | if (f != cdHandle || base != 0 || dest != cdbuffer) { | |
1506 | // Async reads are only supported for cdbuffer, so call the sync | |
1507 | // function directly. | |
1508 | return sync_cdimg_read_func(f, base, dest, sector); | |
1509 | } | |
1510 | ||
1511 | pthread_mutex_lock(&read_thread_msg_lock); | |
1512 | ||
1513 | // Only wait if we're not trying to read the next sector and | |
1514 | // sector_start is set (meaning the last request hasn't been | |
1515 | // processed yet) | |
1516 | while(read_thread_sector_start != -1 && read_thread_sector_end + 1 != sector) { | |
1517 | pthread_cond_wait(&read_thread_msg_done, &read_thread_msg_lock); | |
1518 | } | |
1519 | ||
1520 | if (read_thread_sector_start == -1) | |
1521 | read_thread_sector_start = sector; | |
1522 | ||
1523 | read_thread_sector_end = sector; | |
1524 | pthread_cond_signal(&read_thread_msg_avail); | |
1525 | pthread_mutex_unlock(&read_thread_msg_lock); | |
1526 | ||
1527 | do { | |
1528 | pthread_mutex_lock(§orbuffer_lock); | |
1529 | if (sectorbuffer[i].sector == sector) { | |
1530 | sectorbuffer_index = i; | |
1531 | ret = sectorbuffer[i].ret; | |
1532 | found = TRUE; | |
1533 | } | |
1534 | ||
1535 | if (!found) { | |
1536 | pthread_cond_wait(§orbuffer_cond, §orbuffer_lock); | |
1537 | } | |
1538 | pthread_mutex_unlock(§orbuffer_lock); | |
1539 | } while (!found); | |
1540 | ||
1541 | return ret; | |
1542 | } | |
1543 | ||
1544 | #endif | |
1545 | ||
9a92bffb | 1546 | static unsigned char * CALLBACK ISOgetBuffer_compr(void) { |
1547 | return compr_img->buff_raw[compr_img->sector_in_blk] + 12; | |
1548 | } | |
1549 | ||
b0ec2e6d | 1550 | #ifdef HAVE_CHD |
ce188d4d | 1551 | static unsigned char * CALLBACK ISOgetBuffer_chd(void) { |
aeb82099 | 1552 | return chd_get_sector(chd_img->current_buffer, chd_img->sector_in_hunk) + 12; |
ce188d4d | 1553 | } |
b0ec2e6d | 1554 | #endif |
ce188d4d | 1555 | |
78bb116f | 1556 | #if USE_READ_THREAD |
679b71e2 JW |
1557 | static unsigned char * CALLBACK ISOgetBuffer_async(void) { |
1558 | unsigned char *buffer; | |
1559 | pthread_mutex_lock(§orbuffer_lock); | |
1560 | buffer = sectorbuffer[sectorbuffer_index].data; | |
1561 | pthread_mutex_unlock(§orbuffer_lock); | |
1562 | return buffer + 12; | |
1563 | } | |
679b71e2 JW |
1564 | #endif |
1565 | ||
9a92bffb | 1566 | static unsigned char * CALLBACK ISOgetBuffer(void) { |
81abe4d5 | 1567 | return cdbuffer + 12; |
9a92bffb | 1568 | } |
1569 | ||
ef79bbde P |
1570 | static void PrintTracks(void) { |
1571 | int i; | |
1572 | ||
1573 | for (i = 1; i <= numtracks; i++) { | |
1574 | SysPrintf(_("Track %.2d (%s) - Start %.2d:%.2d:%.2d, Length %.2d:%.2d:%.2d\n"), | |
1575 | i, (ti[i].type == DATA ? "DATA" : "AUDIO"), | |
1576 | ti[i].start[0], ti[i].start[1], ti[i].start[2], | |
1577 | ti[i].length[0], ti[i].length[1], ti[i].length[2]); | |
1578 | } | |
1579 | } | |
1580 | ||
1581 | // This function is invoked by the front-end when opening an ISO | |
1582 | // file for playback | |
1583 | static long CALLBACK ISOopen(void) { | |
9a92bffb | 1584 | boolean isMode1ISO = FALSE; |
689e0447 | 1585 | char alt_bin_filename[MAXPATHLEN]; |
1586 | const char *bin_filename; | |
75d5614b | 1587 | char image_str[1024]; |
9a92bffb | 1588 | |
ef79bbde P |
1589 | if (cdHandle != NULL) { |
1590 | return 0; // it's already open | |
1591 | } | |
1592 | ||
226a5691 | 1593 | cdHandle = fopen(GetIsoFile(), "rb"); |
ef79bbde | 1594 | if (cdHandle == NULL) { |
2e058581 | 1595 | SysPrintf(_("Could't open '%s' for reading: %s\n"), |
1596 | GetIsoFile(), strerror(errno)); | |
ef79bbde P |
1597 | return -1; |
1598 | } | |
1599 | ||
75d5614b | 1600 | snprintf(image_str, sizeof(image_str) - 6*4 - 1, |
1601 | "Loaded CD Image: %s", GetIsoFile()); | |
ef79bbde P |
1602 | |
1603 | cddaBigEndian = FALSE; | |
1604 | subChanMixed = FALSE; | |
1605 | subChanRaw = FALSE; | |
8aa91443 | 1606 | pregapOffset = 0; |
0c2871a7 | 1607 | cdrIsoMultidiskCount = 1; |
deebc67f | 1608 | multifile = 0; |
ef79bbde | 1609 | |
9a92bffb | 1610 | CDR_getBuffer = ISOgetBuffer; |
1611 | cdimg_read_func = cdread_normal; | |
0eacae49 | 1612 | cdimg_read_sub_func = NULL; |
9a92bffb | 1613 | |
92f43ab0 | 1614 | if (parsetoc(GetIsoFile()) == 0) { |
208177a7 | 1615 | strcat(image_str, "[+toc]"); |
ef79bbde P |
1616 | } |
1617 | else if (parseccd(GetIsoFile()) == 0) { | |
208177a7 | 1618 | strcat(image_str, "[+ccd]"); |
ef79bbde P |
1619 | } |
1620 | else if (parsemds(GetIsoFile()) == 0) { | |
208177a7 | 1621 | strcat(image_str, "[+mds]"); |
ef79bbde | 1622 | } |
92f43ab0 | 1623 | else if (parsecue(GetIsoFile()) == 0) { |
208177a7 | 1624 | strcat(image_str, "[+cue]"); |
92f43ab0 | 1625 | } |
0877957a | 1626 | if (handlepbp(GetIsoFile()) == 0) { |
208177a7 | 1627 | strcat(image_str, "[+pbp]"); |
9a92bffb | 1628 | CDR_getBuffer = ISOgetBuffer_compr; |
1629 | cdimg_read_func = cdread_compressed; | |
1630 | } | |
0877957a | 1631 | else if (handlecbin(GetIsoFile()) == 0) { |
208177a7 | 1632 | strcat(image_str, "[+cbin]"); |
0877957a | 1633 | CDR_getBuffer = ISOgetBuffer_compr; |
1634 | cdimg_read_func = cdread_compressed; | |
1635 | } | |
b0ec2e6d | 1636 | #ifdef HAVE_CHD |
ce188d4d | 1637 | else if (handlechd(GetIsoFile()) == 0) { |
208177a7 | 1638 | strcat(image_str, "[+chd]"); |
ce188d4d | 1639 | CDR_getBuffer = ISOgetBuffer_chd; |
1640 | cdimg_read_func = cdread_chd; | |
0eacae49 | 1641 | cdimg_read_sub_func = cdread_sub_chd; |
ce188d4d | 1642 | } |
b0ec2e6d | 1643 | #endif |
ef79bbde P |
1644 | |
1645 | if (!subChanMixed && opensubfile(GetIsoFile()) == 0) { | |
208177a7 | 1646 | strcat(image_str, "[+sub]"); |
ef79bbde | 1647 | } |
ae4e7dc9 | 1648 | if (opensbifile(GetIsoFile()) == 0) { |
208177a7 | 1649 | strcat(image_str, "[+sbi]"); |
ae4e7dc9 | 1650 | } |
ef79bbde | 1651 | |
cc376814 | 1652 | fseeko(cdHandle, 0, SEEK_END); |
c9e5423e | 1653 | |
1654 | // maybe user selected metadata file instead of main .bin .. | |
689e0447 | 1655 | bin_filename = GetIsoFile(); |
cc376814 | 1656 | if (ftello(cdHandle) < 2352 * 0x10) { |
c9e5423e | 1657 | static const char *exts[] = { ".bin", ".BIN", ".img", ".IMG" }; |
689e0447 | 1658 | FILE *tmpf = NULL; |
c9e5423e | 1659 | size_t i; |
689e0447 | 1660 | char *p; |
c9e5423e | 1661 | |
689e0447 | 1662 | strncpy(alt_bin_filename, bin_filename, sizeof(alt_bin_filename)); |
1663 | alt_bin_filename[MAXPATHLEN - 1] = '\0'; | |
1664 | if (strlen(alt_bin_filename) >= 4) { | |
1665 | p = alt_bin_filename + strlen(alt_bin_filename) - 4; | |
c9e5423e | 1666 | for (i = 0; i < sizeof(exts) / sizeof(exts[0]); i++) { |
1667 | strcpy(p, exts[i]); | |
226a5691 | 1668 | tmpf = fopen(alt_bin_filename, "rb"); |
689e0447 | 1669 | if (tmpf != NULL) |
c9e5423e | 1670 | break; |
c9e5423e | 1671 | } |
1672 | } | |
689e0447 | 1673 | if (tmpf != NULL) { |
1674 | bin_filename = alt_bin_filename; | |
1675 | fclose(cdHandle); | |
1676 | cdHandle = tmpf; | |
cc376814 | 1677 | fseeko(cdHandle, 0, SEEK_END); |
689e0447 | 1678 | } |
c9e5423e | 1679 | } |
1680 | ||
1681 | // guess whether it is mode1/2048 | |
7e49a25d | 1682 | if (cdimg_read_func == cdread_normal && ftello(cdHandle) % 2048 == 0) { |
9a92bffb | 1683 | unsigned int modeTest = 0; |
1684 | fseek(cdHandle, 0, SEEK_SET); | |
4f0c5e3f | 1685 | if (!fread(&modeTest, sizeof(modeTest), 1, cdHandle)) { |
9361a5aa | 1686 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); |
9361a5aa | 1687 | } |
9a92bffb | 1688 | if (SWAP32(modeTest) != 0xffffff00) { |
208177a7 | 1689 | strcat(image_str, "[2048]"); |
9a92bffb | 1690 | isMode1ISO = TRUE; |
1691 | } | |
1692 | } | |
1693 | fseek(cdHandle, 0, SEEK_SET); | |
1694 | ||
208177a7 | 1695 | SysPrintf("%s.\n", image_str); |
ef79bbde P |
1696 | |
1697 | PrintTracks(); | |
1698 | ||
7e49a25d | 1699 | if (subChanMixed && cdimg_read_func == cdread_normal) { |
9a92bffb | 1700 | cdimg_read_func = cdread_sub_mixed; |
0eacae49 | 1701 | cdimg_read_sub_func = cdread_sub_sub_mixed; |
1702 | } | |
1703 | else if (isMode1ISO) { | |
9a92bffb | 1704 | cdimg_read_func = cdread_2048; |
0eacae49 | 1705 | cdimg_read_sub_func = NULL; |
1706 | } | |
9a92bffb | 1707 | |
38b8102c | 1708 | // make sure we have another handle open for cdda |
1709 | if (numtracks > 1 && ti[1].handle == NULL) { | |
226a5691 | 1710 | ti[1].handle = fopen(bin_filename, "rb"); |
38b8102c | 1711 | } |
1712 | ||
679b71e2 JW |
1713 | if (Config.AsyncCD) { |
1714 | readThreadStart(); | |
1715 | } | |
ef79bbde P |
1716 | return 0; |
1717 | } | |
1718 | ||
1719 | static long CALLBACK ISOclose(void) { | |
38b8102c | 1720 | int i; |
1721 | ||
ef79bbde P |
1722 | if (cdHandle != NULL) { |
1723 | fclose(cdHandle); | |
1724 | cdHandle = NULL; | |
1725 | } | |
1726 | if (subHandle != NULL) { | |
1727 | fclose(subHandle); | |
1728 | subHandle = NULL; | |
1729 | } | |
6e537c6d | 1730 | playing = FALSE; |
38b8102c | 1731 | cddaHandle = NULL; |
1732 | ||
9a92bffb | 1733 | if (compr_img != NULL) { |
1734 | free(compr_img->index_table); | |
1735 | free(compr_img); | |
1736 | compr_img = NULL; | |
1737 | } | |
1738 | ||
b0ec2e6d | 1739 | #ifdef HAVE_CHD |
ce188d4d | 1740 | if (chd_img != NULL) { |
1741 | chd_close(chd_img->chd); | |
1742 | free(chd_img->buffer); | |
1743 | free(chd_img); | |
1744 | chd_img = NULL; | |
1745 | } | |
b0ec2e6d | 1746 | #endif |
ce188d4d | 1747 | |
38b8102c | 1748 | for (i = 1; i <= numtracks; i++) { |
1749 | if (ti[i].handle != NULL) { | |
1750 | fclose(ti[i].handle); | |
1751 | ti[i].handle = NULL; | |
1752 | } | |
1753 | } | |
1754 | numtracks = 0; | |
c0ee7ac6 | 1755 | ti[1].type = 0; |
ae4e7dc9 | 1756 | UnloadSBI(); |
38b8102c | 1757 | |
c0ee7ac6 | 1758 | memset(cdbuffer, 0, sizeof(cdbuffer)); |
1759 | CDR_getBuffer = ISOgetBuffer; | |
1760 | ||
49942a16 | 1761 | if (Config.AsyncCD) { |
1762 | readThreadStop(); | |
1763 | } | |
1764 | ||
38b8102c | 1765 | return 0; |
1766 | } | |
1767 | ||
1768 | static long CALLBACK ISOinit(void) { | |
1769 | assert(cdHandle == NULL); | |
1770 | assert(subHandle == NULL); | |
1771 | ||
1772 | return 0; // do nothing | |
1773 | } | |
1774 | ||
1775 | static long CALLBACK ISOshutdown(void) { | |
1776 | ISOclose(); | |
ef79bbde P |
1777 | return 0; |
1778 | } | |
1779 | ||
1780 | // return Starting and Ending Track | |
1781 | // buffer: | |
1782 | // byte 0 - start track | |
1783 | // byte 1 - end track | |
1784 | static long CALLBACK ISOgetTN(unsigned char *buffer) { | |
1785 | buffer[0] = 1; | |
1786 | ||
1787 | if (numtracks > 0) { | |
1788 | buffer[1] = numtracks; | |
1789 | } | |
1790 | else { | |
1791 | buffer[1] = 1; | |
1792 | } | |
1793 | ||
1794 | return 0; | |
1795 | } | |
1796 | ||
1797 | // return Track Time | |
1798 | // buffer: | |
1799 | // byte 0 - frame | |
1800 | // byte 1 - second | |
1801 | // byte 2 - minute | |
1802 | static long CALLBACK ISOgetTD(unsigned char track, unsigned char *buffer) { | |
858ad511 | 1803 | if (track == 0) { |
858ad511 | 1804 | unsigned int sect; |
1805 | unsigned char time[3]; | |
1806 | sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length); | |
ab948f7e | 1807 | sec2msf(sect, (char *)time); |
858ad511 | 1808 | buffer[2] = time[0]; |
1809 | buffer[1] = time[1]; | |
1810 | buffer[0] = time[2]; | |
1811 | } | |
1812 | else if (numtracks > 0 && track <= numtracks) { | |
ef79bbde P |
1813 | buffer[2] = ti[track].start[0]; |
1814 | buffer[1] = ti[track].start[1]; | |
1815 | buffer[0] = ti[track].start[2]; | |
1816 | } | |
1817 | else { | |
1818 | buffer[2] = 0; | |
1819 | buffer[1] = 2; | |
1820 | buffer[0] = 0; | |
1821 | } | |
1822 | ||
1823 | return 0; | |
1824 | } | |
1825 | ||
1826 | // decode 'raw' subchannel data ripped by cdrdao | |
1827 | static void DecodeRawSubData(void) { | |
1828 | unsigned char subQData[12]; | |
1829 | int i; | |
1830 | ||
1831 | memset(subQData, 0, sizeof(subQData)); | |
1832 | ||
1833 | for (i = 0; i < 8 * 12; i++) { | |
1834 | if (subbuffer[i] & (1 << 6)) { // only subchannel Q is needed | |
1835 | subQData[i >> 3] |= (1 << (7 - (i & 7))); | |
1836 | } | |
1837 | } | |
1838 | ||
1839 | memcpy(&subbuffer[12], subQData, 12); | |
1840 | } | |
1841 | ||
1842 | // read track | |
1843 | // time: byte 0 - minute; byte 1 - second; byte 2 - frame | |
1844 | // uses bcd format | |
d2e271b2 | 1845 | static boolean CALLBACK ISOreadTrack(unsigned char *time) { |
19c03d80 | 1846 | int sector = MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])); |
c0ee7ac6 | 1847 | long ret; |
19c03d80 | 1848 | |
ef79bbde | 1849 | if (cdHandle == NULL) { |
d2e271b2 | 1850 | return 0; |
ef79bbde P |
1851 | } |
1852 | ||
0eacae49 | 1853 | if (pregapOffset && sector >= pregapOffset) |
1854 | sector -= 2 * 75; | |
8aa91443 | 1855 | |
c0ee7ac6 | 1856 | ret = cdimg_read_func(cdHandle, 0, cdbuffer, sector); |
1f665cdd | 1857 | if (ret < 12*2 + 2048) |
d2e271b2 | 1858 | return 0; |
ef79bbde | 1859 | |
d2e271b2 | 1860 | return 1; |
ef79bbde P |
1861 | } |
1862 | ||
ef79bbde P |
1863 | // plays cdda audio |
1864 | // sector: byte 0 - minute; byte 1 - second; byte 2 - frame | |
1865 | // does NOT uses bcd format | |
2e88c317 | 1866 | static long CALLBACK ISOplay(unsigned char *time) { |
66425c25 | 1867 | playing = TRUE; |
ef79bbde P |
1868 | return 0; |
1869 | } | |
1870 | ||
1871 | // stops cdda audio | |
1872 | static long CALLBACK ISOstop(void) { | |
66425c25 | 1873 | playing = FALSE; |
ef79bbde P |
1874 | return 0; |
1875 | } | |
1876 | ||
1877 | // gets subchannel data | |
0eacae49 | 1878 | static unsigned char* CALLBACK ISOgetBufferSub(int sector) { |
1879 | if (pregapOffset && sector >= pregapOffset) { | |
1880 | sector -= 2 * 75; | |
1881 | if (sector < pregapOffset) // ? | |
1882 | return NULL; | |
ef79bbde P |
1883 | } |
1884 | ||
0eacae49 | 1885 | if (cdimg_read_sub_func != NULL) { |
1886 | if (cdimg_read_sub_func(cdHandle, sector) != SUB_FRAMESIZE) | |
1887 | return NULL; | |
1888 | } | |
1889 | else if (subHandle != NULL) { | |
1890 | if (fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET)) | |
1891 | return NULL; | |
1892 | if (fread(subbuffer, 1, SUB_FRAMESIZE, subHandle) != SUB_FRAMESIZE) | |
1893 | return NULL; | |
1894 | } | |
1895 | else { | |
1896 | return NULL; | |
1897 | } | |
1898 | ||
1899 | if (subChanRaw) DecodeRawSubData(); | |
1900 | return subbuffer; | |
ef79bbde P |
1901 | } |
1902 | ||
1903 | static long CALLBACK ISOgetStatus(struct CdrStat *stat) { | |
deebc67f | 1904 | u32 sect; |
1905 | ||
ef79bbde | 1906 | CDR__getStatus(stat); |
deebc67f | 1907 | |
ef79bbde P |
1908 | if (playing) { |
1909 | stat->Type = 0x02; | |
1910 | stat->Status |= 0x80; | |
ef79bbde P |
1911 | } |
1912 | else { | |
deebc67f | 1913 | // BIOS - boot ID (CD type) |
1914 | stat->Type = ti[1].type; | |
1915 | } | |
1916 | ||
1917 | // relative -> absolute time | |
1918 | sect = cddaCurPos; | |
1919 | sec2msf(sect, (char *)stat->Time); | |
1920 | ||
1921 | return 0; | |
1922 | } | |
1923 | ||
1924 | // read CDDA sector into buffer | |
1925 | long CALLBACK ISOreadCDDA(unsigned char m, unsigned char s, unsigned char f, unsigned char *buffer) { | |
1926 | unsigned char msf[3] = {m, s, f}; | |
1927 | unsigned int file, track, track_start = 0; | |
1928 | int ret; | |
1929 | ||
1930 | cddaCurPos = msf2sec((char *)msf); | |
1931 | ||
1932 | // find current track index | |
1933 | for (track = numtracks; ; track--) { | |
1934 | track_start = msf2sec(ti[track].start); | |
1935 | if (track_start <= cddaCurPos) | |
1936 | break; | |
1937 | if (track == 1) | |
1938 | break; | |
1939 | } | |
1940 | ||
1941 | // data tracks play silent | |
1942 | if (ti[track].type != CDDA) { | |
1943 | memset(buffer, 0, CD_FRAMESIZE_RAW); | |
1944 | return 0; | |
1945 | } | |
1946 | ||
1947 | file = 1; | |
1948 | if (multifile) { | |
1949 | // find the file that contains this track | |
1950 | for (file = track; file > 1; file--) | |
1951 | if (ti[file].handle != NULL) | |
1952 | break; | |
ef79bbde P |
1953 | } |
1954 | ||
deebc67f | 1955 | ret = cdimg_read_func(ti[file].handle, ti[track].start_offset, |
1956 | buffer, cddaCurPos - track_start); | |
1957 | if (ret != CD_FRAMESIZE_RAW) { | |
1958 | memset(buffer, 0, CD_FRAMESIZE_RAW); | |
1959 | return -1; | |
1960 | } | |
1961 | ||
1962 | if (cddaBigEndian) { | |
1963 | int i; | |
1964 | unsigned char tmp; | |
1965 | ||
1966 | for (i = 0; i < CD_FRAMESIZE_RAW / 2; i++) { | |
1967 | tmp = buffer[i * 2]; | |
1968 | buffer[i * 2] = buffer[i * 2 + 1]; | |
1969 | buffer[i * 2 + 1] = tmp; | |
1970 | } | |
1971 | } | |
858ad511 | 1972 | |
ef79bbde P |
1973 | return 0; |
1974 | } | |
1975 | ||
1976 | void cdrIsoInit(void) { | |
1977 | CDR_init = ISOinit; | |
1978 | CDR_shutdown = ISOshutdown; | |
1979 | CDR_open = ISOopen; | |
1980 | CDR_close = ISOclose; | |
1981 | CDR_getTN = ISOgetTN; | |
1982 | CDR_getTD = ISOgetTD; | |
1983 | CDR_readTrack = ISOreadTrack; | |
1984 | CDR_getBuffer = ISOgetBuffer; | |
1985 | CDR_play = ISOplay; | |
1986 | CDR_stop = ISOstop; | |
1987 | CDR_getBufferSub = ISOgetBufferSub; | |
1988 | CDR_getStatus = ISOgetStatus; | |
deebc67f | 1989 | CDR_readCDDA = ISOreadCDDA; |
ef79bbde P |
1990 | |
1991 | CDR_getDriveLetter = CDR__getDriveLetter; | |
1992 | CDR_configure = CDR__configure; | |
1993 | CDR_test = CDR__test; | |
1994 | CDR_about = CDR__about; | |
1995 | CDR_setfilename = CDR__setfilename; | |
1996 | ||
1997 | numtracks = 0; | |
1998 | } | |
1999 | ||
2000 | int cdrIsoActive(void) { | |
2001 | return (cdHandle != NULL); | |
2002 | } |