| | 1 | /*************************************************************************** |
| | 2 | * Copyright (C) 2007 PCSX-df Team * |
| | 3 | * Copyright (C) 2009 Wei Mingzhi * |
| | 4 | * Copyright (C) 2012 notaz * |
| | 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., * |
| | 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * |
| | 20 | ***************************************************************************/ |
| | 21 | |
| | 22 | #include "psxcommon.h" |
| | 23 | #include "cdrom.h" |
| | 24 | #include "cdriso.h" |
| | 25 | #include "ppf.h" |
| | 26 | |
| | 27 | #include <errno.h> |
| | 28 | #include <zlib.h> |
| | 29 | #ifdef HAVE_CHD |
| | 30 | #include <libchdr/chd.h> |
| | 31 | #endif |
| | 32 | |
| | 33 | #ifdef _WIN32 |
| | 34 | #define strcasecmp _stricmp |
| | 35 | #else |
| | 36 | #include <sys/types.h> |
| | 37 | #include <sys/stat.h> |
| | 38 | #include <unistd.h> |
| | 39 | #endif |
| | 40 | |
| | 41 | #ifdef USE_LIBRETRO_VFS |
| | 42 | #include <streams/file_stream_transforms.h> |
| | 43 | #undef fseeko |
| | 44 | #undef ftello |
| | 45 | #undef rewind |
| | 46 | #define ftello rftell |
| | 47 | #define fseeko rfseek |
| | 48 | #define rewind(f_) rfseek(f_, 0, SEEK_SET) |
| | 49 | #endif |
| | 50 | |
| | 51 | #define OFF_T_MSB ((off_t)1 << (sizeof(off_t) * 8 - 1)) |
| | 52 | |
| | 53 | unsigned int cdrIsoMultidiskCount; |
| | 54 | unsigned int cdrIsoMultidiskSelect; |
| | 55 | |
| | 56 | static FILE *cdHandle = NULL; |
| | 57 | static FILE *subHandle = NULL; |
| | 58 | |
| | 59 | static boolean subChanMixed = FALSE; |
| | 60 | static boolean subChanRaw = FALSE; |
| | 61 | |
| | 62 | static boolean multifile = FALSE; |
| | 63 | |
| | 64 | static unsigned char cdbuffer[CD_FRAMESIZE_RAW]; |
| | 65 | |
| | 66 | static boolean cddaBigEndian = FALSE; |
| | 67 | /* Frame offset into CD image where pregap data would be found if it was there. |
| | 68 | * If a game seeks there we must *not* return subchannel data since it's |
| | 69 | * not in the CD image, so that cdrom code can fake subchannel data instead. |
| | 70 | * XXX: there could be multiple pregaps but PSX dumps only have one? */ |
| | 71 | static unsigned int pregapOffset; |
| | 72 | |
| | 73 | // compressed image stuff |
| | 74 | static struct { |
| | 75 | unsigned char buff_raw[16][CD_FRAMESIZE_RAW]; |
| | 76 | unsigned char buff_compressed[CD_FRAMESIZE_RAW * 16 + 100]; |
| | 77 | off_t *index_table; |
| | 78 | unsigned int index_len; |
| | 79 | unsigned int block_shift; |
| | 80 | unsigned int current_block; |
| | 81 | unsigned int sector_in_blk; |
| | 82 | } *compr_img; |
| | 83 | |
| | 84 | #ifdef HAVE_CHD |
| | 85 | static struct { |
| | 86 | unsigned char *buffer; |
| | 87 | chd_file* chd; |
| | 88 | const chd_header* header; |
| | 89 | unsigned int sectors_per_hunk; |
| | 90 | unsigned int current_hunk[2]; |
| | 91 | unsigned int current_buffer; |
| | 92 | unsigned int sector_in_hunk; |
| | 93 | } *chd_img; |
| | 94 | #else |
| | 95 | #define chd_img 0 |
| | 96 | #endif |
| | 97 | |
| | 98 | static int (*cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector); |
| | 99 | static int (*cdimg_read_sub_func)(FILE *f, int sector, void *dest); |
| | 100 | |
| | 101 | static void DecodeRawSubData(unsigned char *subbuffer); |
| | 102 | |
| | 103 | struct trackinfo { |
| | 104 | enum {DATA=1, CDDA} type; |
| | 105 | char start[3]; // MSF-format |
| | 106 | char length[3]; // MSF-format |
| | 107 | FILE *handle; // for multi-track images CDDA |
| | 108 | unsigned int start_offset; // byte offset from start of above file (chd: sector offset) |
| | 109 | }; |
| | 110 | |
| | 111 | #define MAXTRACKS 100 /* How many tracks can a CD hold? */ |
| | 112 | |
| | 113 | static int numtracks = 0; |
| | 114 | static struct trackinfo ti[MAXTRACKS]; |
| | 115 | |
| | 116 | // get a sector from a msf-array |
| | 117 | static unsigned int msf2sec(const void *msf_) { |
| | 118 | const unsigned char *msf = msf_; |
| | 119 | return ((msf[0] * 60 + msf[1]) * 75) + msf[2]; |
| | 120 | } |
| | 121 | |
| | 122 | static void sec2msf(unsigned int s, void *msf_) { |
| | 123 | unsigned char *msf = msf_; |
| | 124 | msf[0] = s / 75 / 60; |
| | 125 | s = s - msf[0] * 75 * 60; |
| | 126 | msf[1] = s / 75; |
| | 127 | s = s - msf[1] * 75; |
| | 128 | msf[2] = s; |
| | 129 | } |
| | 130 | |
| | 131 | // divide a string of xx:yy:zz into m, s, f |
| | 132 | static void tok2msf(char *time, char *msf) { |
| | 133 | char *token; |
| | 134 | |
| | 135 | token = strtok(time, ":"); |
| | 136 | if (token) { |
| | 137 | msf[0] = atoi(token); |
| | 138 | } |
| | 139 | else { |
| | 140 | msf[0] = 0; |
| | 141 | } |
| | 142 | |
| | 143 | token = strtok(NULL, ":"); |
| | 144 | if (token) { |
| | 145 | msf[1] = atoi(token); |
| | 146 | } |
| | 147 | else { |
| | 148 | msf[1] = 0; |
| | 149 | } |
| | 150 | |
| | 151 | token = strtok(NULL, ":"); |
| | 152 | if (token) { |
| | 153 | msf[2] = atoi(token); |
| | 154 | } |
| | 155 | else { |
| | 156 | msf[2] = 0; |
| | 157 | } |
| | 158 | } |
| | 159 | |
| | 160 | static off_t get_size(FILE *f) |
| | 161 | { |
| | 162 | off_t old, size; |
| | 163 | #if !defined(USE_LIBRETRO_VFS) |
| | 164 | struct stat st; |
| | 165 | if (fstat(fileno(f), &st) == 0) |
| | 166 | return st.st_size; |
| | 167 | #endif |
| | 168 | old = ftello(f); |
| | 169 | fseeko(f, 0, SEEK_END); |
| | 170 | size = ftello(f); |
| | 171 | fseeko(f, old, SEEK_SET); |
| | 172 | return size; |
| | 173 | } |
| | 174 | |
| | 175 | // Some c libs like newlib default buffering to just 1k which is less than |
| | 176 | // cd sector size which is bad for performance. |
| | 177 | // Note that NULL setvbuf() is implemented differently by different libs |
| | 178 | // (newlib mallocs a buffer of given size and glibc ignores size and uses it's own). |
| | 179 | static void set_static_stdio_buffer(FILE *f) |
| | 180 | { |
| | 181 | #if !defined(fopen) // no stdio redirect |
| | 182 | static char buf[16 * 1024]; |
| | 183 | if (f) { |
| | 184 | int r; |
| | 185 | errno = 0; |
| | 186 | r = setvbuf(f, buf, _IOFBF, sizeof(buf)); |
| | 187 | if (r) |
| | 188 | SysPrintf("cdriso: setvbuf %d %d\n", r, errno); |
| | 189 | } |
| | 190 | #endif |
| | 191 | } |
| | 192 | |
| | 193 | // this function tries to get the .toc file of the given .bin |
| | 194 | // the necessary data is put into the ti (trackinformation)-array |
| | 195 | static int parsetoc(const char *isofile) { |
| | 196 | char tocname[MAXPATHLEN]; |
| | 197 | FILE *fi; |
| | 198 | char linebuf[256], tmp[256], name[256]; |
| | 199 | char *token; |
| | 200 | char time[20], time2[20]; |
| | 201 | unsigned int t, sector_offs, sector_size; |
| | 202 | unsigned int current_zero_gap = 0; |
| | 203 | |
| | 204 | numtracks = 0; |
| | 205 | |
| | 206 | // copy name of the iso and change extension from .bin to .toc |
| | 207 | strncpy(tocname, isofile, sizeof(tocname)); |
| | 208 | tocname[MAXPATHLEN - 1] = '\0'; |
| | 209 | if (strlen(tocname) >= 4) { |
| | 210 | strcpy(tocname + strlen(tocname) - 4, ".toc"); |
| | 211 | } |
| | 212 | else { |
| | 213 | return -1; |
| | 214 | } |
| | 215 | |
| | 216 | if ((fi = fopen(tocname, "r")) == NULL) { |
| | 217 | // try changing extension to .cue (to satisfy some stupid tutorials) |
| | 218 | strcpy(tocname + strlen(tocname) - 4, ".cue"); |
| | 219 | if ((fi = fopen(tocname, "r")) == NULL) { |
| | 220 | // if filename is image.toc.bin, try removing .bin (for Brasero) |
| | 221 | strcpy(tocname, isofile); |
| | 222 | t = strlen(tocname); |
| | 223 | if (t >= 8 && strcmp(tocname + t - 8, ".toc.bin") == 0) { |
| | 224 | tocname[t - 4] = '\0'; |
| | 225 | if ((fi = fopen(tocname, "r")) == NULL) { |
| | 226 | return -1; |
| | 227 | } |
| | 228 | } |
| | 229 | else { |
| | 230 | return -1; |
| | 231 | } |
| | 232 | } |
| | 233 | // check if it's really a TOC named as a .cue |
| | 234 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
| | 235 | token = strtok(linebuf, " "); |
| | 236 | if (token && strncmp(token, "CD", 2) != 0) { |
| | 237 | // && strcmp(token, "CATALOG") != 0) - valid for a real .cue |
| | 238 | fclose(fi); |
| | 239 | return -1; |
| | 240 | } |
| | 241 | } |
| | 242 | fseek(fi, 0, SEEK_SET); |
| | 243 | } |
| | 244 | |
| | 245 | memset(&ti, 0, sizeof(ti)); |
| | 246 | cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio |
| | 247 | |
| | 248 | sector_size = CD_FRAMESIZE_RAW; |
| | 249 | sector_offs = 2 * 75; |
| | 250 | |
| | 251 | // parse the .toc file |
| | 252 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
| | 253 | // search for tracks |
| | 254 | strncpy(tmp, linebuf, sizeof(linebuf)); |
| | 255 | token = strtok(tmp, " "); |
| | 256 | |
| | 257 | if (token == NULL) continue; |
| | 258 | |
| | 259 | if (!strcmp(token, "TRACK")) { |
| | 260 | sector_offs += current_zero_gap; |
| | 261 | current_zero_gap = 0; |
| | 262 | |
| | 263 | // get type of track |
| | 264 | token = strtok(NULL, " "); |
| | 265 | numtracks++; |
| | 266 | |
| | 267 | if (!strncmp(token, "MODE2_RAW", 9)) { |
| | 268 | ti[numtracks].type = DATA; |
| | 269 | sec2msf(2 * 75, ti[numtracks].start); // assume data track on 0:2:0 |
| | 270 | |
| | 271 | // check if this image contains mixed subchannel data |
| | 272 | token = strtok(NULL, " "); |
| | 273 | if (token != NULL && !strncmp(token, "RW", 2)) { |
| | 274 | sector_size = CD_FRAMESIZE_RAW + SUB_FRAMESIZE; |
| | 275 | subChanMixed = TRUE; |
| | 276 | if (!strncmp(token, "RW_RAW", 6)) |
| | 277 | subChanRaw = TRUE; |
| | 278 | } |
| | 279 | } |
| | 280 | else if (!strncmp(token, "AUDIO", 5)) { |
| | 281 | ti[numtracks].type = CDDA; |
| | 282 | } |
| | 283 | } |
| | 284 | else if (!strcmp(token, "DATAFILE")) { |
| | 285 | if (ti[numtracks].type == CDDA) { |
| | 286 | sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2); |
| | 287 | ti[numtracks].start_offset = t; |
| | 288 | t = t / sector_size + sector_offs; |
| | 289 | sec2msf(t, (char *)&ti[numtracks].start); |
| | 290 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); |
| | 291 | } |
| | 292 | else { |
| | 293 | sscanf(linebuf, "DATAFILE \"%[^\"]\" %8s", name, time); |
| | 294 | tok2msf((char *)&time, (char *)&ti[numtracks].length); |
| | 295 | } |
| | 296 | } |
| | 297 | else if (!strcmp(token, "FILE")) { |
| | 298 | sscanf(linebuf, "FILE \"%[^\"]\" #%d %8s %8s", name, &t, time, time2); |
| | 299 | tok2msf((char *)&time, (char *)&ti[numtracks].start); |
| | 300 | t += msf2sec(ti[numtracks].start) * sector_size; |
| | 301 | ti[numtracks].start_offset = t; |
| | 302 | t = t / sector_size + sector_offs; |
| | 303 | sec2msf(t, (char *)&ti[numtracks].start); |
| | 304 | tok2msf((char *)&time2, (char *)&ti[numtracks].length); |
| | 305 | } |
| | 306 | else if (!strcmp(token, "ZERO") || !strcmp(token, "SILENCE")) { |
| | 307 | // skip unneeded optional fields |
| | 308 | while (token != NULL) { |
| | 309 | token = strtok(NULL, " "); |
| | 310 | if (strchr(token, ':') != NULL) |
| | 311 | break; |
| | 312 | } |
| | 313 | if (token != NULL) { |
| | 314 | tok2msf(token, tmp); |
| | 315 | current_zero_gap = msf2sec(tmp); |
| | 316 | } |
| | 317 | if (numtracks > 1) { |
| | 318 | t = ti[numtracks - 1].start_offset; |
| | 319 | t /= sector_size; |
| | 320 | pregapOffset = t + msf2sec(ti[numtracks - 1].length); |
| | 321 | } |
| | 322 | } |
| | 323 | else if (!strcmp(token, "START")) { |
| | 324 | token = strtok(NULL, " "); |
| | 325 | if (token != NULL && strchr(token, ':')) { |
| | 326 | tok2msf(token, tmp); |
| | 327 | t = msf2sec(tmp); |
| | 328 | ti[numtracks].start_offset += (t - current_zero_gap) * sector_size; |
| | 329 | t = msf2sec(ti[numtracks].start) + t; |
| | 330 | sec2msf(t, (char *)&ti[numtracks].start); |
| | 331 | } |
| | 332 | } |
| | 333 | } |
| | 334 | |
| | 335 | fclose(fi); |
| | 336 | |
| | 337 | return 0; |
| | 338 | } |
| | 339 | |
| | 340 | // this function tries to get the .cue file of the given .bin |
| | 341 | // the necessary data is put into the ti (trackinformation)-array |
| | 342 | static int parsecue(const char *isofile) { |
| | 343 | char cuename[MAXPATHLEN]; |
| | 344 | char filepath[MAXPATHLEN]; |
| | 345 | char *incue_fname; |
| | 346 | FILE *fi; |
| | 347 | FILE *ftmp = NULL; |
| | 348 | char *token; |
| | 349 | char time[20]; |
| | 350 | char *tmp; |
| | 351 | char linebuf[256], tmpb[256], dummy[256]; |
| | 352 | unsigned int incue_max_len; |
| | 353 | unsigned int t, file_len, mode, sector_offs; |
| | 354 | unsigned int sector_size = 2352; |
| | 355 | |
| | 356 | numtracks = 0; |
| | 357 | |
| | 358 | // copy name of the iso and change extension from .bin to .cue |
| | 359 | strncpy(cuename, isofile, sizeof(cuename)); |
| | 360 | cuename[MAXPATHLEN - 1] = '\0'; |
| | 361 | if (strlen(cuename) < 4) |
| | 362 | return -1; |
| | 363 | if (strcasecmp(cuename + strlen(cuename) - 4, ".cue") == 0) { |
| | 364 | // it's already open as cdHandle |
| | 365 | fi = cdHandle; |
| | 366 | } |
| | 367 | else { |
| | 368 | // If 'isofile' is a '.cd<X>' file, use it as a .cue file |
| | 369 | // and don't try to search the additional .cue file |
| | 370 | if (strncasecmp(cuename + strlen(cuename) - 4, ".cd", 3) != 0 ) |
| | 371 | strcpy(cuename + strlen(cuename) - 4, ".cue"); |
| | 372 | |
| | 373 | if ((ftmp = fopen(cuename, "r")) == NULL) |
| | 374 | return -1; |
| | 375 | fi = ftmp; |
| | 376 | } |
| | 377 | |
| | 378 | // Some stupid tutorials wrongly tell users to use cdrdao to rip a |
| | 379 | // "bin/cue" image, which is in fact a "bin/toc" image. So let's check |
| | 380 | // that... |
| | 381 | if (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
| | 382 | if (!strncmp(linebuf, "CD_ROM_XA", 9)) { |
| | 383 | // Don't proceed further, as this is actually a .toc file rather |
| | 384 | // than a .cue file. |
| | 385 | if (ftmp) |
| | 386 | fclose(ftmp); |
| | 387 | return parsetoc(isofile); |
| | 388 | } |
| | 389 | rewind(fi); |
| | 390 | } |
| | 391 | |
| | 392 | // build a path for files referenced in .cue |
| | 393 | strncpy(filepath, cuename, sizeof(filepath)); |
| | 394 | tmp = strrchr(filepath, '/'); |
| | 395 | if (tmp == NULL) |
| | 396 | tmp = strrchr(filepath, '\\'); |
| | 397 | if (tmp != NULL) |
| | 398 | tmp++; |
| | 399 | else |
| | 400 | tmp = filepath; |
| | 401 | *tmp = 0; |
| | 402 | filepath[sizeof(filepath) - 1] = 0; |
| | 403 | incue_fname = tmp; |
| | 404 | incue_max_len = sizeof(filepath) - (tmp - filepath) - 1; |
| | 405 | |
| | 406 | memset(&ti, 0, sizeof(ti)); |
| | 407 | |
| | 408 | file_len = 0; |
| | 409 | sector_offs = 2 * 75; |
| | 410 | |
| | 411 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
| | 412 | strncpy(dummy, linebuf, sizeof(linebuf)); |
| | 413 | token = strtok(dummy, " "); |
| | 414 | |
| | 415 | if (token == NULL) { |
| | 416 | continue; |
| | 417 | } |
| | 418 | |
| | 419 | if (!strcmp(token, "TRACK")) { |
| | 420 | numtracks++; |
| | 421 | |
| | 422 | sector_size = 0; |
| | 423 | if (strstr(linebuf, "AUDIO") != NULL) { |
| | 424 | ti[numtracks].type = CDDA; |
| | 425 | sector_size = 2352; |
| | 426 | } |
| | 427 | else if (sscanf(linebuf, " TRACK %u MODE%u/%u", &t, &mode, §or_size) == 3) |
| | 428 | ti[numtracks].type = DATA; |
| | 429 | else { |
| | 430 | SysPrintf(".cue: failed to parse TRACK\n"); |
| | 431 | ti[numtracks].type = numtracks == 1 ? DATA : CDDA; |
| | 432 | } |
| | 433 | if (sector_size == 0) |
| | 434 | sector_size = 2352; |
| | 435 | } |
| | 436 | else if (!strcmp(token, "INDEX")) { |
| | 437 | if (sscanf(linebuf, " INDEX %02d %8s", &t, time) != 2) |
| | 438 | SysPrintf(".cue: failed to parse INDEX\n"); |
| | 439 | tok2msf(time, (char *)&ti[numtracks].start); |
| | 440 | |
| | 441 | t = msf2sec(ti[numtracks].start); |
| | 442 | ti[numtracks].start_offset = t * sector_size; |
| | 443 | t += sector_offs; |
| | 444 | sec2msf(t, ti[numtracks].start); |
| | 445 | |
| | 446 | // default track length to file length |
| | 447 | t = file_len - ti[numtracks].start_offset / sector_size; |
| | 448 | sec2msf(t, ti[numtracks].length); |
| | 449 | |
| | 450 | if (numtracks > 1 && ti[numtracks].handle == NULL) { |
| | 451 | // this track uses the same file as the last, |
| | 452 | // start of this track is last track's end |
| | 453 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); |
| | 454 | sec2msf(t, ti[numtracks - 1].length); |
| | 455 | } |
| | 456 | if (numtracks > 1 && pregapOffset == -1) |
| | 457 | pregapOffset = ti[numtracks].start_offset / sector_size; |
| | 458 | } |
| | 459 | else if (!strcmp(token, "PREGAP")) { |
| | 460 | if (sscanf(linebuf, " PREGAP %8s", time) == 1) { |
| | 461 | tok2msf(time, dummy); |
| | 462 | sector_offs += msf2sec(dummy); |
| | 463 | } |
| | 464 | pregapOffset = -1; // mark to fill track start_offset |
| | 465 | } |
| | 466 | else if (!strcmp(token, "FILE")) { |
| | 467 | t = sscanf(linebuf, " FILE \"%255[^\"]\"", tmpb); |
| | 468 | if (t != 1) |
| | 469 | sscanf(linebuf, " FILE %255s", tmpb); |
| | 470 | |
| | 471 | // absolute path? |
| | 472 | ti[numtracks + 1].handle = fopen(tmpb, "rb"); |
| | 473 | if (ti[numtracks + 1].handle == NULL) { |
| | 474 | // relative to .cue? |
| | 475 | tmp = strrchr(tmpb, '\\'); |
| | 476 | if (tmp == NULL) |
| | 477 | tmp = strrchr(tmpb, '/'); |
| | 478 | if (tmp != NULL) |
| | 479 | tmp++; |
| | 480 | else |
| | 481 | tmp = tmpb; |
| | 482 | strncpy(incue_fname, tmp, incue_max_len); |
| | 483 | ti[numtracks + 1].handle = fopen(filepath, "rb"); |
| | 484 | } |
| | 485 | |
| | 486 | // update global offset if this is not first file in this .cue |
| | 487 | if (numtracks + 1 > 1) { |
| | 488 | multifile = 1; |
| | 489 | sector_offs += file_len; |
| | 490 | } |
| | 491 | |
| | 492 | file_len = 0; |
| | 493 | if (ti[numtracks + 1].handle == NULL) { |
| | 494 | SysPrintf(_("\ncould not open: %s\n"), filepath); |
| | 495 | continue; |
| | 496 | } |
| | 497 | file_len = get_size(ti[numtracks + 1].handle) / 2352; |
| | 498 | } |
| | 499 | } |
| | 500 | |
| | 501 | if (ftmp) |
| | 502 | fclose(ftmp); |
| | 503 | |
| | 504 | // if there are no tracks detected, then it's not a cue file |
| | 505 | if (!numtracks) |
| | 506 | return -1; |
| | 507 | |
| | 508 | // the data track handle is always in cdHandle |
| | 509 | if (ti[1].handle) { |
| | 510 | fclose(cdHandle); |
| | 511 | cdHandle = ti[1].handle; |
| | 512 | ti[1].handle = NULL; |
| | 513 | set_static_stdio_buffer(cdHandle); |
| | 514 | } |
| | 515 | return 0; |
| | 516 | } |
| | 517 | |
| | 518 | // this function tries to get the .ccd file of the given .img |
| | 519 | // the necessary data is put into the ti (trackinformation)-array |
| | 520 | static int parseccd(const char *isofile) { |
| | 521 | char ccdname[MAXPATHLEN]; |
| | 522 | FILE *fi; |
| | 523 | char linebuf[256]; |
| | 524 | unsigned int t; |
| | 525 | |
| | 526 | numtracks = 0; |
| | 527 | |
| | 528 | // copy name of the iso and change extension from .img to .ccd |
| | 529 | strncpy(ccdname, isofile, sizeof(ccdname)); |
| | 530 | ccdname[MAXPATHLEN - 1] = '\0'; |
| | 531 | if (strlen(ccdname) >= 4) { |
| | 532 | strcpy(ccdname + strlen(ccdname) - 4, ".ccd"); |
| | 533 | } |
| | 534 | else { |
| | 535 | return -1; |
| | 536 | } |
| | 537 | |
| | 538 | if ((fi = fopen(ccdname, "r")) == NULL) { |
| | 539 | return -1; |
| | 540 | } |
| | 541 | |
| | 542 | memset(&ti, 0, sizeof(ti)); |
| | 543 | |
| | 544 | while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { |
| | 545 | if (!strncmp(linebuf, "[TRACK", 6)){ |
| | 546 | numtracks++; |
| | 547 | } |
| | 548 | else if (!strncmp(linebuf, "MODE=", 5)) { |
| | 549 | sscanf(linebuf, "MODE=%d", &t); |
| | 550 | ti[numtracks].type = ((t == 0) ? CDDA : DATA); |
| | 551 | } |
| | 552 | else if (!strncmp(linebuf, "INDEX 1=", 8)) { |
| | 553 | sscanf(linebuf, "INDEX 1=%d", &t); |
| | 554 | sec2msf(t + 2 * 75, ti[numtracks].start); |
| | 555 | ti[numtracks].start_offset = t * 2352; |
| | 556 | |
| | 557 | // If we've already seen another track, this is its end |
| | 558 | if (numtracks > 1) { |
| | 559 | t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); |
| | 560 | sec2msf(t, ti[numtracks - 1].length); |
| | 561 | } |
| | 562 | } |
| | 563 | } |
| | 564 | |
| | 565 | fclose(fi); |
| | 566 | |
| | 567 | // Fill out the last track's end based on size |
| | 568 | if (numtracks >= 1) { |
| | 569 | t = get_size(cdHandle) / 2352 - msf2sec(ti[numtracks].start) + 2 * 75; |
| | 570 | sec2msf(t, ti[numtracks].length); |
| | 571 | } |
| | 572 | |
| | 573 | return 0; |
| | 574 | } |
| | 575 | |
| | 576 | // this function tries to get the .mds file of the given .mdf |
| | 577 | // the necessary data is put into the ti (trackinformation)-array |
| | 578 | static int parsemds(const char *isofile) { |
| | 579 | char mdsname[MAXPATHLEN]; |
| | 580 | FILE *fi; |
| | 581 | unsigned int offset, extra_offset, l, i; |
| | 582 | unsigned short s; |
| | 583 | |
| | 584 | numtracks = 0; |
| | 585 | |
| | 586 | // copy name of the iso and change extension from .mdf to .mds |
| | 587 | strncpy(mdsname, isofile, sizeof(mdsname)); |
| | 588 | mdsname[MAXPATHLEN - 1] = '\0'; |
| | 589 | if (strlen(mdsname) >= 4) { |
| | 590 | strcpy(mdsname + strlen(mdsname) - 4, ".mds"); |
| | 591 | } |
| | 592 | else { |
| | 593 | return -1; |
| | 594 | } |
| | 595 | |
| | 596 | if ((fi = fopen(mdsname, "rb")) == NULL) { |
| | 597 | return -1; |
| | 598 | } |
| | 599 | |
| | 600 | memset(&ti, 0, sizeof(ti)); |
| | 601 | |
| | 602 | // check if it's a valid mds file |
| | 603 | if (fread(&i, 1, sizeof(i), fi) != sizeof(i)) |
| | 604 | goto fail_io; |
| | 605 | i = SWAP32(i); |
| | 606 | if (i != 0x4944454D) { |
| | 607 | // not an valid mds file |
| | 608 | fclose(fi); |
| | 609 | return -1; |
| | 610 | } |
| | 611 | |
| | 612 | // get offset to session block |
| | 613 | fseek(fi, 0x50, SEEK_SET); |
| | 614 | if (fread(&offset, 1, sizeof(offset), fi) != sizeof(offset)) |
| | 615 | goto fail_io; |
| | 616 | offset = SWAP32(offset); |
| | 617 | |
| | 618 | // get total number of tracks |
| | 619 | offset += 14; |
| | 620 | fseek(fi, offset, SEEK_SET); |
| | 621 | if (fread(&s, 1, sizeof(s), fi) != sizeof(s)) |
| | 622 | goto fail_io; |
| | 623 | s = SWAP16(s); |
| | 624 | numtracks = s; |
| | 625 | |
| | 626 | // get offset to track blocks |
| | 627 | fseek(fi, 4, SEEK_CUR); |
| | 628 | if (fread(&offset, 1, sizeof(offset), fi) != sizeof(offset)) |
| | 629 | goto fail_io; |
| | 630 | offset = SWAP32(offset); |
| | 631 | |
| | 632 | // skip lead-in data |
| | 633 | while (1) { |
| | 634 | fseek(fi, offset + 4, SEEK_SET); |
| | 635 | if (fgetc(fi) < 0xA0) { |
| | 636 | break; |
| | 637 | } |
| | 638 | offset += 0x50; |
| | 639 | } |
| | 640 | |
| | 641 | // check if the image contains mixed subchannel data |
| | 642 | fseek(fi, offset + 1, SEEK_SET); |
| | 643 | subChanMixed = subChanRaw = (fgetc(fi) ? TRUE : FALSE); |
| | 644 | |
| | 645 | // read track data |
| | 646 | for (i = 1; i <= numtracks; i++) { |
| | 647 | fseek(fi, offset, SEEK_SET); |
| | 648 | |
| | 649 | // get the track type |
| | 650 | ti[i].type = ((fgetc(fi) == 0xA9) ? CDDA : DATA); |
| | 651 | fseek(fi, 8, SEEK_CUR); |
| | 652 | |
| | 653 | // get the track starting point |
| | 654 | ti[i].start[0] = fgetc(fi); |
| | 655 | ti[i].start[1] = fgetc(fi); |
| | 656 | ti[i].start[2] = fgetc(fi); |
| | 657 | |
| | 658 | if (fread(&extra_offset, 1, sizeof(extra_offset), fi) != sizeof(extra_offset)) |
| | 659 | goto fail_io; |
| | 660 | extra_offset = SWAP32(extra_offset); |
| | 661 | |
| | 662 | // get track start offset (in .mdf) |
| | 663 | fseek(fi, offset + 0x28, SEEK_SET); |
| | 664 | if (fread(&l, 1, sizeof(l), fi) != sizeof(l)) |
| | 665 | goto fail_io; |
| | 666 | l = SWAP32(l); |
| | 667 | ti[i].start_offset = l; |
| | 668 | |
| | 669 | // get pregap |
| | 670 | fseek(fi, extra_offset, SEEK_SET); |
| | 671 | if (fread(&l, 1, sizeof(l), fi) != sizeof(l)) |
| | 672 | goto fail_io; |
| | 673 | l = SWAP32(l); |
| | 674 | if (l != 0 && i > 1) |
| | 675 | pregapOffset = msf2sec(ti[i].start); |
| | 676 | |
| | 677 | // get the track length |
| | 678 | if (fread(&l, 1, sizeof(l), fi) != sizeof(l)) |
| | 679 | goto fail_io; |
| | 680 | l = SWAP32(l); |
| | 681 | sec2msf(l, ti[i].length); |
| | 682 | |
| | 683 | offset += 0x50; |
| | 684 | } |
| | 685 | fclose(fi); |
| | 686 | return 0; |
| | 687 | fail_io: |
| | 688 | #ifndef NDEBUG |
| | 689 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); |
| | 690 | #endif |
| | 691 | fclose(fi); |
| | 692 | return -1; |
| | 693 | } |
| | 694 | |
| | 695 | static int handlepbp(const char *isofile) { |
| | 696 | struct { |
| | 697 | unsigned int sig; |
| | 698 | unsigned int dontcare[8]; |
| | 699 | unsigned int psar_offs; |
| | 700 | } pbp_hdr; |
| | 701 | struct { |
| | 702 | unsigned char type; |
| | 703 | unsigned char pad0; |
| | 704 | unsigned char track; |
| | 705 | char index0[3]; |
| | 706 | char pad1; |
| | 707 | char index1[3]; |
| | 708 | } toc_entry; |
| | 709 | struct { |
| | 710 | unsigned int offset; |
| | 711 | unsigned int size; |
| | 712 | unsigned int dontcare[6]; |
| | 713 | } index_entry; |
| | 714 | char psar_sig[11]; |
| | 715 | off_t psisoimg_offs, cdimg_base; |
| | 716 | unsigned int t, cd_length; |
| | 717 | unsigned int offsettab[8]; |
| | 718 | unsigned int psar_offs, index_entry_size, index_entry_offset; |
| | 719 | const char *ext = NULL; |
| | 720 | int i, ret; |
| | 721 | |
| | 722 | if (strlen(isofile) >= 4) |
| | 723 | ext = isofile + strlen(isofile) - 4; |
| | 724 | if (ext == NULL || strcasecmp(ext, ".pbp") != 0) |
| | 725 | return -1; |
| | 726 | |
| | 727 | numtracks = 0; |
| | 728 | |
| | 729 | ret = fread(&pbp_hdr, 1, sizeof(pbp_hdr), cdHandle); |
| | 730 | if (ret != sizeof(pbp_hdr)) { |
| | 731 | SysPrintf("failed to read pbp\n"); |
| | 732 | goto fail_io; |
| | 733 | } |
| | 734 | |
| | 735 | psar_offs = SWAP32(pbp_hdr.psar_offs); |
| | 736 | |
| | 737 | ret = fseeko(cdHandle, psar_offs, SEEK_SET); |
| | 738 | if (ret != 0) { |
| | 739 | SysPrintf("failed to seek to %x\n", psar_offs); |
| | 740 | goto fail_io; |
| | 741 | } |
| | 742 | |
| | 743 | psisoimg_offs = psar_offs; |
| | 744 | if (fread(psar_sig, 1, sizeof(psar_sig), cdHandle) != sizeof(psar_sig)) |
| | 745 | goto fail_io; |
| | 746 | psar_sig[10] = 0; |
| | 747 | if (strcmp(psar_sig, "PSTITLEIMG") == 0) { |
| | 748 | // multidisk image? |
| | 749 | ret = fseeko(cdHandle, psar_offs + 0x200, SEEK_SET); |
| | 750 | if (ret != 0) { |
| | 751 | SysPrintf("failed to seek to %x\n", psar_offs + 0x200); |
| | 752 | goto fail_io; |
| | 753 | } |
| | 754 | |
| | 755 | if (fread(&offsettab, 1, sizeof(offsettab), cdHandle) != sizeof(offsettab)) { |
| | 756 | SysPrintf("failed to read offsettab\n"); |
| | 757 | goto fail_io; |
| | 758 | } |
| | 759 | |
| | 760 | for (i = 0; i < sizeof(offsettab) / sizeof(offsettab[0]); i++) { |
| | 761 | if (offsettab[i] == 0) |
| | 762 | break; |
| | 763 | } |
| | 764 | cdrIsoMultidiskCount = i; |
| | 765 | if (cdrIsoMultidiskCount == 0) { |
| | 766 | SysPrintf("multidisk eboot has 0 images?\n"); |
| | 767 | goto fail_io; |
| | 768 | } |
| | 769 | |
| | 770 | if (cdrIsoMultidiskSelect >= cdrIsoMultidiskCount) |
| | 771 | cdrIsoMultidiskSelect = 0; |
| | 772 | |
| | 773 | psisoimg_offs += SWAP32(offsettab[cdrIsoMultidiskSelect]); |
| | 774 | |
| | 775 | ret = fseeko(cdHandle, psisoimg_offs, SEEK_SET); |
| | 776 | if (ret != 0) { |
| | 777 | SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs); |
| | 778 | goto fail_io; |
| | 779 | } |
| | 780 | |
| | 781 | if (fread(psar_sig, 1, sizeof(psar_sig), cdHandle) != sizeof(psar_sig)) |
| | 782 | goto fail_io; |
| | 783 | psar_sig[10] = 0; |
| | 784 | } |
| | 785 | |
| | 786 | if (strcmp(psar_sig, "PSISOIMG00") != 0) { |
| | 787 | SysPrintf("bad psar_sig: %s\n", psar_sig); |
| | 788 | goto fail_io; |
| | 789 | } |
| | 790 | |
| | 791 | // seek to TOC |
| | 792 | ret = fseeko(cdHandle, psisoimg_offs + 0x800, SEEK_SET); |
| | 793 | if (ret != 0) { |
| | 794 | SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs + 0x800); |
| | 795 | goto fail_io; |
| | 796 | } |
| | 797 | |
| | 798 | // first 3 entries are special |
| | 799 | fseek(cdHandle, sizeof(toc_entry), SEEK_CUR); |
| | 800 | if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry)) |
| | 801 | goto fail_io; |
| | 802 | numtracks = btoi(toc_entry.index1[0]); |
| | 803 | |
| | 804 | if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry)) |
| | 805 | goto fail_io; |
| | 806 | cd_length = btoi(toc_entry.index1[0]) * 60 * 75 + |
| | 807 | btoi(toc_entry.index1[1]) * 75 + btoi(toc_entry.index1[2]); |
| | 808 | |
| | 809 | for (i = 1; i <= numtracks; i++) { |
| | 810 | if (fread(&toc_entry, 1, sizeof(toc_entry), cdHandle) != sizeof(toc_entry)) |
| | 811 | goto fail_io; |
| | 812 | |
| | 813 | ti[i].type = (toc_entry.type == 1) ? CDDA : DATA; |
| | 814 | |
| | 815 | ti[i].start_offset = btoi(toc_entry.index0[0]) * 60 * 75 + |
| | 816 | btoi(toc_entry.index0[1]) * 75 + btoi(toc_entry.index0[2]); |
| | 817 | ti[i].start_offset *= 2352; |
| | 818 | ti[i].start[0] = btoi(toc_entry.index1[0]); |
| | 819 | ti[i].start[1] = btoi(toc_entry.index1[1]); |
| | 820 | ti[i].start[2] = btoi(toc_entry.index1[2]); |
| | 821 | |
| | 822 | if (i > 1) { |
| | 823 | t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start); |
| | 824 | sec2msf(t, ti[i - 1].length); |
| | 825 | } |
| | 826 | } |
| | 827 | t = cd_length - ti[numtracks].start_offset / 2352; |
| | 828 | sec2msf(t, ti[numtracks].length); |
| | 829 | |
| | 830 | // seek to ISO index |
| | 831 | ret = fseeko(cdHandle, psisoimg_offs + 0x4000, SEEK_SET); |
| | 832 | if (ret != 0) { |
| | 833 | SysPrintf("failed to seek to ISO index\n"); |
| | 834 | goto fail_io; |
| | 835 | } |
| | 836 | |
| | 837 | compr_img = calloc(1, sizeof(*compr_img)); |
| | 838 | if (compr_img == NULL) |
| | 839 | goto fail_io; |
| | 840 | |
| | 841 | compr_img->block_shift = 4; |
| | 842 | compr_img->current_block = (unsigned int)-1; |
| | 843 | |
| | 844 | compr_img->index_len = (0x100000 - 0x4000) / sizeof(index_entry); |
| | 845 | compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); |
| | 846 | if (compr_img->index_table == NULL) |
| | 847 | goto fail_io; |
| | 848 | |
| | 849 | cdimg_base = psisoimg_offs + 0x100000; |
| | 850 | for (i = 0; i < compr_img->index_len; i++) { |
| | 851 | ret = fread(&index_entry, 1, sizeof(index_entry), cdHandle); |
| | 852 | if (ret != sizeof(index_entry)) { |
| | 853 | SysPrintf("failed to read index_entry #%d\n", i); |
| | 854 | goto fail_index; |
| | 855 | } |
| | 856 | |
| | 857 | index_entry_size = SWAP32(index_entry.size); |
| | 858 | index_entry_offset = SWAP32(index_entry.offset); |
| | 859 | |
| | 860 | if (index_entry_size == 0) |
| | 861 | break; |
| | 862 | |
| | 863 | compr_img->index_table[i] = cdimg_base + index_entry_offset; |
| | 864 | } |
| | 865 | compr_img->index_table[i] = cdimg_base + index_entry_offset + index_entry_size; |
| | 866 | |
| | 867 | return 0; |
| | 868 | |
| | 869 | fail_index: |
| | 870 | free(compr_img->index_table); |
| | 871 | compr_img->index_table = NULL; |
| | 872 | goto done; |
| | 873 | |
| | 874 | fail_io: |
| | 875 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); |
| | 876 | rewind(cdHandle); |
| | 877 | |
| | 878 | done: |
| | 879 | if (compr_img != NULL) { |
| | 880 | free(compr_img); |
| | 881 | compr_img = NULL; |
| | 882 | } |
| | 883 | return -1; |
| | 884 | } |
| | 885 | |
| | 886 | static int handlecbin(const char *isofile) { |
| | 887 | struct |
| | 888 | { |
| | 889 | char magic[4]; |
| | 890 | unsigned int header_size; |
| | 891 | unsigned long long total_bytes; |
| | 892 | unsigned int block_size; |
| | 893 | unsigned char ver; // 1 |
| | 894 | unsigned char align; |
| | 895 | unsigned char rsv_06[2]; |
| | 896 | } ciso_hdr; |
| | 897 | const char *ext = NULL; |
| | 898 | unsigned int *index_table = NULL; |
| | 899 | unsigned int index = 0, plain; |
| | 900 | int i, ret; |
| | 901 | |
| | 902 | if (strlen(isofile) >= 5) |
| | 903 | ext = isofile + strlen(isofile) - 5; |
| | 904 | if (ext == NULL || (strcasecmp(ext + 1, ".cbn") != 0 && strcasecmp(ext, ".cbin") != 0)) |
| | 905 | return -1; |
| | 906 | |
| | 907 | ret = fread(&ciso_hdr, 1, sizeof(ciso_hdr), cdHandle); |
| | 908 | if (ret != sizeof(ciso_hdr)) { |
| | 909 | SysPrintf("failed to read ciso header\n"); |
| | 910 | goto fail_io; |
| | 911 | } |
| | 912 | |
| | 913 | if (strncmp(ciso_hdr.magic, "CISO", 4) != 0 || ciso_hdr.total_bytes <= 0 || ciso_hdr.block_size <= 0) { |
| | 914 | SysPrintf("bad ciso header\n"); |
| | 915 | goto fail_io; |
| | 916 | } |
| | 917 | if (ciso_hdr.header_size != 0 && ciso_hdr.header_size != sizeof(ciso_hdr)) { |
| | 918 | ret = fseeko(cdHandle, ciso_hdr.header_size, SEEK_SET); |
| | 919 | if (ret != 0) { |
| | 920 | SysPrintf("failed to seek to %x\n", ciso_hdr.header_size); |
| | 921 | goto fail_io; |
| | 922 | } |
| | 923 | } |
| | 924 | |
| | 925 | compr_img = calloc(1, sizeof(*compr_img)); |
| | 926 | if (compr_img == NULL) |
| | 927 | goto fail_io; |
| | 928 | |
| | 929 | compr_img->block_shift = 0; |
| | 930 | compr_img->current_block = (unsigned int)-1; |
| | 931 | |
| | 932 | compr_img->index_len = ciso_hdr.total_bytes / ciso_hdr.block_size; |
| | 933 | index_table = malloc((compr_img->index_len + 1) * sizeof(index_table[0])); |
| | 934 | if (index_table == NULL) |
| | 935 | goto fail_io; |
| | 936 | |
| | 937 | ret = fread(index_table, sizeof(index_table[0]), compr_img->index_len, cdHandle); |
| | 938 | if (ret != compr_img->index_len) { |
| | 939 | SysPrintf("failed to read index table\n"); |
| | 940 | goto fail_index; |
| | 941 | } |
| | 942 | |
| | 943 | compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0])); |
| | 944 | if (compr_img->index_table == NULL) |
| | 945 | goto fail_index; |
| | 946 | |
| | 947 | for (i = 0; i < compr_img->index_len + 1; i++) { |
| | 948 | index = index_table[i]; |
| | 949 | plain = index & 0x80000000; |
| | 950 | index &= 0x7fffffff; |
| | 951 | compr_img->index_table[i] = (off_t)index << ciso_hdr.align; |
| | 952 | if (plain) |
| | 953 | compr_img->index_table[i] |= OFF_T_MSB; |
| | 954 | } |
| | 955 | |
| | 956 | return 0; |
| | 957 | |
| | 958 | fail_index: |
| | 959 | free(index_table); |
| | 960 | fail_io: |
| | 961 | if (compr_img != NULL) { |
| | 962 | free(compr_img); |
| | 963 | compr_img = NULL; |
| | 964 | } |
| | 965 | rewind(cdHandle); |
| | 966 | return -1; |
| | 967 | } |
| | 968 | |
| | 969 | #ifdef HAVE_CHD |
| | 970 | static int handlechd(const char *isofile) { |
| | 971 | int frame_offset = 150; |
| | 972 | int file_offset = 0; |
| | 973 | int is_chd_ext = 0; |
| | 974 | chd_error err; |
| | 975 | |
| | 976 | if (strlen(isofile) >= 3) { |
| | 977 | const char *ext = isofile + strlen(isofile) - 3; |
| | 978 | is_chd_ext = !strcasecmp(ext, "chd"); |
| | 979 | } |
| | 980 | chd_img = calloc(1, sizeof(*chd_img)); |
| | 981 | if (chd_img == NULL) |
| | 982 | goto fail_io; |
| | 983 | |
| | 984 | err = chd_open_file(cdHandle, CHD_OPEN_READ, NULL, &chd_img->chd); |
| | 985 | if (err != CHDERR_NONE) { |
| | 986 | if (is_chd_ext) |
| | 987 | SysPrintf("chd_open: %d\n", err); |
| | 988 | goto fail_io; |
| | 989 | } |
| | 990 | |
| | 991 | if (Config.CHD_Precache && (chd_precache(chd_img->chd) != CHDERR_NONE)) |
| | 992 | goto fail_io; |
| | 993 | |
| | 994 | chd_img->header = chd_get_header(chd_img->chd); |
| | 995 | |
| | 996 | chd_img->buffer = malloc(chd_img->header->hunkbytes * 2); |
| | 997 | if (chd_img->buffer == NULL) |
| | 998 | goto fail_io; |
| | 999 | |
| | 1000 | chd_img->sectors_per_hunk = chd_img->header->hunkbytes / (CD_FRAMESIZE_RAW + SUB_FRAMESIZE); |
| | 1001 | chd_img->current_hunk[0] = (unsigned int)-1; |
| | 1002 | chd_img->current_hunk[1] = (unsigned int)-1; |
| | 1003 | |
| | 1004 | cddaBigEndian = TRUE; |
| | 1005 | |
| | 1006 | numtracks = 0; |
| | 1007 | memset(ti, 0, sizeof(ti)); |
| | 1008 | |
| | 1009 | while (1) |
| | 1010 | { |
| | 1011 | struct { |
| | 1012 | char type[64]; |
| | 1013 | char subtype[32]; |
| | 1014 | char pgtype[32]; |
| | 1015 | char pgsub[32]; |
| | 1016 | uint32_t track; |
| | 1017 | uint32_t frames; |
| | 1018 | uint32_t pregap; |
| | 1019 | uint32_t postgap; |
| | 1020 | } md = {}; |
| | 1021 | char meta[256]; |
| | 1022 | uint32_t meta_size = 0; |
| | 1023 | |
| | 1024 | if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA2_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE) |
| | 1025 | sscanf(meta, CDROM_TRACK_METADATA2_FORMAT, &md.track, md.type, md.subtype, &md.frames, &md.pregap, md.pgtype, md.pgsub, &md.postgap); |
| | 1026 | else if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE) |
| | 1027 | sscanf(meta, CDROM_TRACK_METADATA_FORMAT, &md.track, md.type, md.subtype, &md.frames); |
| | 1028 | else |
| | 1029 | break; |
| | 1030 | |
| | 1031 | SysPrintf("chd: %s\n", meta); |
| | 1032 | |
| | 1033 | if (md.track == 1) { |
| | 1034 | if (!strncmp(md.subtype, "RW", 2)) { |
| | 1035 | subChanMixed = TRUE; |
| | 1036 | if (!strcmp(md.subtype, "RW_RAW")) |
| | 1037 | subChanRaw = TRUE; |
| | 1038 | } |
| | 1039 | } |
| | 1040 | |
| | 1041 | ti[md.track].type = !strncmp(md.type, "AUDIO", 5) ? CDDA : DATA; |
| | 1042 | |
| | 1043 | sec2msf(frame_offset + md.pregap, ti[md.track].start); |
| | 1044 | sec2msf(md.frames, ti[md.track].length); |
| | 1045 | |
| | 1046 | ti[md.track].start_offset = file_offset + md.pregap; |
| | 1047 | |
| | 1048 | // XXX: what about postgap? |
| | 1049 | frame_offset += md.frames; |
| | 1050 | file_offset += md.frames; |
| | 1051 | numtracks++; |
| | 1052 | } |
| | 1053 | |
| | 1054 | if (numtracks) |
| | 1055 | return 0; |
| | 1056 | |
| | 1057 | fail_io: |
| | 1058 | if (chd_img != NULL) { |
| | 1059 | free(chd_img->buffer); |
| | 1060 | free(chd_img); |
| | 1061 | chd_img = NULL; |
| | 1062 | } |
| | 1063 | return -1; |
| | 1064 | } |
| | 1065 | #endif |
| | 1066 | |
| | 1067 | // this function tries to get the .sub file of the given .img |
| | 1068 | static int opensubfile(const char *isoname) { |
| | 1069 | char subname[MAXPATHLEN]; |
| | 1070 | |
| | 1071 | // copy name of the iso and change extension from .img to .sub |
| | 1072 | strncpy(subname, isoname, sizeof(subname)); |
| | 1073 | subname[MAXPATHLEN - 1] = '\0'; |
| | 1074 | if (strlen(subname) >= 4) { |
| | 1075 | strcpy(subname + strlen(subname) - 4, ".sub"); |
| | 1076 | } |
| | 1077 | else { |
| | 1078 | return -1; |
| | 1079 | } |
| | 1080 | |
| | 1081 | subHandle = fopen(subname, "rb"); |
| | 1082 | if (subHandle == NULL) |
| | 1083 | return -1; |
| | 1084 | |
| | 1085 | return 0; |
| | 1086 | } |
| | 1087 | |
| | 1088 | static int opensbifile(const char *isoname) { |
| | 1089 | char sbiname[MAXPATHLEN], disknum[MAXPATHLEN] = "0"; |
| | 1090 | int s; |
| | 1091 | |
| | 1092 | strncpy(sbiname, isoname, sizeof(sbiname)); |
| | 1093 | sbiname[MAXPATHLEN - 1] = '\0'; |
| | 1094 | if (strlen(sbiname) >= 4) { |
| | 1095 | if (cdrIsoMultidiskCount > 1) { |
| | 1096 | sprintf(disknum, "_%i.sbi", cdrIsoMultidiskSelect + 1); |
| | 1097 | strcpy(sbiname + strlen(sbiname) - 4, disknum); |
| | 1098 | } |
| | 1099 | else |
| | 1100 | strcpy(sbiname + strlen(sbiname) - 4, ".sbi"); |
| | 1101 | } |
| | 1102 | else { |
| | 1103 | return -1; |
| | 1104 | } |
| | 1105 | |
| | 1106 | s = msf2sec(ti[1].length); |
| | 1107 | |
| | 1108 | return LoadSBI(sbiname, s); |
| | 1109 | } |
| | 1110 | |
| | 1111 | static int cdread_normal(FILE *f, unsigned int base, void *dest, int sector) |
| | 1112 | { |
| | 1113 | int ret; |
| | 1114 | if (!f) |
| | 1115 | return -1; |
| | 1116 | if (!dest) |
| | 1117 | dest = cdbuffer; |
| | 1118 | if (fseeko(f, base + sector * CD_FRAMESIZE_RAW, SEEK_SET)) |
| | 1119 | goto fail_io; |
| | 1120 | ret = fread(dest, 1, CD_FRAMESIZE_RAW, f); |
| | 1121 | if (ret <= 0) |
| | 1122 | goto fail_io; |
| | 1123 | return ret; |
| | 1124 | |
| | 1125 | fail_io: |
| | 1126 | // often happens in cdda gaps of a split cue/bin, so not logged |
| | 1127 | //SysPrintf("File IO error %d, base %u, sector %u\n", errno, base, sector); |
| | 1128 | return -1; |
| | 1129 | } |
| | 1130 | |
| | 1131 | static int cdread_sub_mixed(FILE *f, unsigned int base, void *dest, int sector) |
| | 1132 | { |
| | 1133 | int ret; |
| | 1134 | |
| | 1135 | if (!f) |
| | 1136 | return -1; |
| | 1137 | if (!dest) |
| | 1138 | dest = cdbuffer; |
| | 1139 | if (fseeko(f, base + sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE), SEEK_SET)) |
| | 1140 | goto fail_io; |
| | 1141 | ret = fread(dest, 1, CD_FRAMESIZE_RAW, f); |
| | 1142 | if (ret <= 0) |
| | 1143 | goto fail_io; |
| | 1144 | return ret; |
| | 1145 | |
| | 1146 | fail_io: |
| | 1147 | //SysPrintf("File IO error %d, base %u, sector %u\n", errno, base, sector); |
| | 1148 | return -1; |
| | 1149 | } |
| | 1150 | |
| | 1151 | static int cdread_sub_sub_mixed(FILE *f, int sector, void *buffer) |
| | 1152 | { |
| | 1153 | if (!f) |
| | 1154 | return -1; |
| | 1155 | if (fseeko(f, sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + CD_FRAMESIZE_RAW, SEEK_SET)) |
| | 1156 | goto fail_io; |
| | 1157 | if (fread(buffer, 1, SUB_FRAMESIZE, f) != SUB_FRAMESIZE) |
| | 1158 | goto fail_io; |
| | 1159 | |
| | 1160 | return 0; |
| | 1161 | |
| | 1162 | fail_io: |
| | 1163 | SysPrintf("subchannel: file IO error %d, sector %u\n", errno, sector); |
| | 1164 | return -1; |
| | 1165 | } |
| | 1166 | |
| | 1167 | static int uncompress2_pcsx(void *out, unsigned long *out_size, void *in, unsigned long in_size) |
| | 1168 | { |
| | 1169 | static z_stream z; |
| | 1170 | int ret = 0; |
| | 1171 | |
| | 1172 | if (z.zalloc == NULL) { |
| | 1173 | // XXX: one-time leak here.. |
| | 1174 | z.next_in = Z_NULL; |
| | 1175 | z.avail_in = 0; |
| | 1176 | z.zalloc = Z_NULL; |
| | 1177 | z.zfree = Z_NULL; |
| | 1178 | z.opaque = Z_NULL; |
| | 1179 | ret = inflateInit2(&z, -15); |
| | 1180 | } |
| | 1181 | else |
| | 1182 | ret = inflateReset(&z); |
| | 1183 | if (ret != Z_OK) |
| | 1184 | return ret; |
| | 1185 | |
| | 1186 | z.next_in = in; |
| | 1187 | z.avail_in = in_size; |
| | 1188 | z.next_out = out; |
| | 1189 | z.avail_out = *out_size; |
| | 1190 | |
| | 1191 | ret = inflate(&z, Z_NO_FLUSH); |
| | 1192 | //inflateEnd(&z); |
| | 1193 | |
| | 1194 | *out_size -= z.avail_out; |
| | 1195 | return ret == 1 ? 0 : ret; |
| | 1196 | } |
| | 1197 | |
| | 1198 | static int cdread_compressed(FILE *f, unsigned int base, void *dest, int sector) |
| | 1199 | { |
| | 1200 | unsigned long cdbuffer_size, cdbuffer_size_expect; |
| | 1201 | unsigned int size; |
| | 1202 | int is_compressed; |
| | 1203 | off_t start_byte; |
| | 1204 | int ret, block; |
| | 1205 | |
| | 1206 | if (!cdHandle) |
| | 1207 | return -1; |
| | 1208 | if (base) |
| | 1209 | sector += base / 2352; |
| | 1210 | |
| | 1211 | block = sector >> compr_img->block_shift; |
| | 1212 | compr_img->sector_in_blk = sector & ((1 << compr_img->block_shift) - 1); |
| | 1213 | |
| | 1214 | if (block == compr_img->current_block) { |
| | 1215 | //printf("hit sect %d\n", sector); |
| | 1216 | goto finish; |
| | 1217 | } |
| | 1218 | |
| | 1219 | if (sector >= compr_img->index_len * 16) { |
| | 1220 | SysPrintf("sector %d is past img end\n", sector); |
| | 1221 | return -1; |
| | 1222 | } |
| | 1223 | |
| | 1224 | start_byte = compr_img->index_table[block] & ~OFF_T_MSB; |
| | 1225 | if (fseeko(cdHandle, start_byte, SEEK_SET) != 0) { |
| | 1226 | SysPrintf("seek error for block %d at %llx: ", |
| | 1227 | block, (long long)start_byte); |
| | 1228 | perror(NULL); |
| | 1229 | return -1; |
| | 1230 | } |
| | 1231 | |
| | 1232 | is_compressed = !(compr_img->index_table[block] & OFF_T_MSB); |
| | 1233 | size = (compr_img->index_table[block + 1] & ~OFF_T_MSB) - start_byte; |
| | 1234 | if (size > sizeof(compr_img->buff_compressed)) { |
| | 1235 | SysPrintf("block %d is too large: %u\n", block, size); |
| | 1236 | return -1; |
| | 1237 | } |
| | 1238 | |
| | 1239 | if (fread(is_compressed ? compr_img->buff_compressed : compr_img->buff_raw[0], |
| | 1240 | 1, size, cdHandle) != size) { |
| | 1241 | SysPrintf("read error for block %d at %lx: ", block, (long)start_byte); |
| | 1242 | perror(NULL); |
| | 1243 | return -1; |
| | 1244 | } |
| | 1245 | |
| | 1246 | if (is_compressed) { |
| | 1247 | cdbuffer_size_expect = sizeof(compr_img->buff_raw[0]) << compr_img->block_shift; |
| | 1248 | cdbuffer_size = cdbuffer_size_expect; |
| | 1249 | ret = uncompress2_pcsx(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size); |
| | 1250 | if (ret != 0) { |
| | 1251 | SysPrintf("uncompress failed with %d for block %d, sector %d\n", |
| | 1252 | ret, block, sector); |
| | 1253 | return -1; |
| | 1254 | } |
| | 1255 | if (cdbuffer_size != cdbuffer_size_expect) |
| | 1256 | SysPrintf("cdbuffer_size: %lu != %lu, sector %d\n", cdbuffer_size, |
| | 1257 | cdbuffer_size_expect, sector); |
| | 1258 | } |
| | 1259 | |
| | 1260 | // done at last! |
| | 1261 | compr_img->current_block = block; |
| | 1262 | |
| | 1263 | finish: |
| | 1264 | if (dest != NULL) |
| | 1265 | memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk], |
| | 1266 | CD_FRAMESIZE_RAW); |
| | 1267 | return CD_FRAMESIZE_RAW; |
| | 1268 | } |
| | 1269 | |
| | 1270 | #ifdef HAVE_CHD |
| | 1271 | static unsigned char *chd_get_sector(unsigned int current_buffer, unsigned int sector_in_hunk) |
| | 1272 | { |
| | 1273 | return chd_img->buffer |
| | 1274 | + current_buffer * chd_img->header->hunkbytes |
| | 1275 | + sector_in_hunk * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE); |
| | 1276 | } |
| | 1277 | |
| | 1278 | static int cdread_chd(FILE *f, unsigned int base, void *dest, int sector) |
| | 1279 | { |
| | 1280 | int hunk; |
| | 1281 | |
| | 1282 | sector += base; |
| | 1283 | |
| | 1284 | hunk = sector / chd_img->sectors_per_hunk; |
| | 1285 | chd_img->sector_in_hunk = sector % chd_img->sectors_per_hunk; |
| | 1286 | |
| | 1287 | if (hunk == chd_img->current_hunk[0]) |
| | 1288 | chd_img->current_buffer = 0; |
| | 1289 | else if (hunk == chd_img->current_hunk[1]) |
| | 1290 | chd_img->current_buffer = 1; |
| | 1291 | else |
| | 1292 | { |
| | 1293 | chd_read(chd_img->chd, hunk, chd_img->buffer + |
| | 1294 | chd_img->current_buffer * chd_img->header->hunkbytes); |
| | 1295 | chd_img->current_hunk[chd_img->current_buffer] = hunk; |
| | 1296 | } |
| | 1297 | |
| | 1298 | if (dest != NULL) |
| | 1299 | memcpy(dest, chd_get_sector(chd_img->current_buffer, chd_img->sector_in_hunk), |
| | 1300 | CD_FRAMESIZE_RAW); |
| | 1301 | return CD_FRAMESIZE_RAW; |
| | 1302 | } |
| | 1303 | |
| | 1304 | static int cdread_sub_chd(FILE *f, int sector, void *buffer_ptr) |
| | 1305 | { |
| | 1306 | unsigned int sector_in_hunk; |
| | 1307 | unsigned int buffer; |
| | 1308 | int hunk; |
| | 1309 | |
| | 1310 | if (!subChanMixed) |
| | 1311 | return -1; |
| | 1312 | |
| | 1313 | hunk = sector / chd_img->sectors_per_hunk; |
| | 1314 | sector_in_hunk = sector % chd_img->sectors_per_hunk; |
| | 1315 | |
| | 1316 | if (hunk == chd_img->current_hunk[0]) |
| | 1317 | buffer = 0; |
| | 1318 | else if (hunk == chd_img->current_hunk[1]) |
| | 1319 | buffer = 1; |
| | 1320 | else |
| | 1321 | { |
| | 1322 | buffer = chd_img->current_buffer ^ 1; |
| | 1323 | chd_read(chd_img->chd, hunk, chd_img->buffer + |
| | 1324 | buffer * chd_img->header->hunkbytes); |
| | 1325 | chd_img->current_hunk[buffer] = hunk; |
| | 1326 | } |
| | 1327 | |
| | 1328 | memcpy(buffer_ptr, chd_get_sector(buffer, sector_in_hunk) + CD_FRAMESIZE_RAW, SUB_FRAMESIZE); |
| | 1329 | return 0; |
| | 1330 | } |
| | 1331 | #endif |
| | 1332 | |
| | 1333 | static int cdread_2048(FILE *f, unsigned int base, void *dest, int sector) |
| | 1334 | { |
| | 1335 | unsigned char *dst = dest ? dest : cdbuffer; |
| | 1336 | int ret; |
| | 1337 | |
| | 1338 | if (!f) |
| | 1339 | return -1; |
| | 1340 | |
| | 1341 | fseeko(f, base + sector * 2048, SEEK_SET); |
| | 1342 | ret = fread(dst + 12 * 2, 1, 2048, f); |
| | 1343 | |
| | 1344 | // not really necessary, fake mode 2 header |
| | 1345 | memset(dst, 0, 12 * 2); |
| | 1346 | sec2msf(sector + 2 * 75, dst + 12); |
| | 1347 | dst[12 + 0] = itob(dst[12 + 0]); |
| | 1348 | dst[12 + 1] = itob(dst[12 + 1]); |
| | 1349 | dst[12 + 2] = itob(dst[12 + 2]); |
| | 1350 | dst[12 + 3] = 1; |
| | 1351 | |
| | 1352 | return 12*2 + ret; |
| | 1353 | } |
| | 1354 | |
| | 1355 | static void * ISOgetBuffer_normal(void) { |
| | 1356 | return cdbuffer + 12; |
| | 1357 | } |
| | 1358 | |
| | 1359 | static void * ISOgetBuffer_compr(void) { |
| | 1360 | return compr_img->buff_raw[compr_img->sector_in_blk] + 12; |
| | 1361 | } |
| | 1362 | |
| | 1363 | #ifdef HAVE_CHD |
| | 1364 | static void * ISOgetBuffer_chd(void) { |
| | 1365 | return chd_get_sector(chd_img->current_buffer, chd_img->sector_in_hunk) + 12; |
| | 1366 | } |
| | 1367 | #endif |
| | 1368 | |
| | 1369 | void * (*ISOgetBuffer)(void) = ISOgetBuffer_normal; |
| | 1370 | |
| | 1371 | static void PrintTracks(void) { |
| | 1372 | int i; |
| | 1373 | |
| | 1374 | for (i = 1; i <= numtracks; i++) { |
| | 1375 | SysPrintf(_("Track %.2d (%s) - Start %.2d:%.2d:%.2d, Length %.2d:%.2d:%.2d\n"), |
| | 1376 | i, (ti[i].type == DATA ? "DATA" : |
| | 1377 | (ti[i].type == CDDA ? "AUDIO" : "UNKNOWN")), |
| | 1378 | ti[i].start[0], ti[i].start[1], ti[i].start[2], |
| | 1379 | ti[i].length[0], ti[i].length[1], ti[i].length[2]); |
| | 1380 | } |
| | 1381 | } |
| | 1382 | |
| | 1383 | // This function is invoked by the front-end when opening an ISO |
| | 1384 | // file for playback |
| | 1385 | int ISOopen(const char *fname) |
| | 1386 | { |
| | 1387 | boolean isMode1ISO = FALSE; |
| | 1388 | char alt_bin_filename[MAXPATHLEN]; |
| | 1389 | const char *bin_filename; |
| | 1390 | char image_str[1024]; |
| | 1391 | off_t size_main; |
| | 1392 | |
| | 1393 | if (cdHandle || chd_img) { |
| | 1394 | return 0; // it's already open |
| | 1395 | } |
| | 1396 | |
| | 1397 | cdHandle = fopen(fname, "rb"); |
| | 1398 | if (cdHandle == NULL) { |
| | 1399 | SysPrintf(_("Could't open '%s' for reading: %s\n"), |
| | 1400 | fname, strerror(errno)); |
| | 1401 | return -1; |
| | 1402 | } |
| | 1403 | set_static_stdio_buffer(cdHandle); |
| | 1404 | size_main = get_size(cdHandle); |
| | 1405 | |
| | 1406 | snprintf(image_str, sizeof(image_str) - 6*4 - 1, |
| | 1407 | "Loaded CD Image: %s", fname); |
| | 1408 | |
| | 1409 | cddaBigEndian = FALSE; |
| | 1410 | subChanMixed = FALSE; |
| | 1411 | subChanRaw = FALSE; |
| | 1412 | pregapOffset = 0; |
| | 1413 | cdrIsoMultidiskCount = 1; |
| | 1414 | multifile = 0; |
| | 1415 | |
| | 1416 | ISOgetBuffer = ISOgetBuffer_normal; |
| | 1417 | cdimg_read_func = cdread_normal; |
| | 1418 | cdimg_read_sub_func = NULL; |
| | 1419 | |
| | 1420 | if (parsetoc(fname) == 0) { |
| | 1421 | strcat(image_str, "[+toc]"); |
| | 1422 | } |
| | 1423 | else if (parseccd(fname) == 0) { |
| | 1424 | strcat(image_str, "[+ccd]"); |
| | 1425 | } |
| | 1426 | else if (parsemds(fname) == 0) { |
| | 1427 | strcat(image_str, "[+mds]"); |
| | 1428 | } |
| | 1429 | else if (parsecue(fname) == 0) { |
| | 1430 | strcat(image_str, "[+cue]"); |
| | 1431 | } |
| | 1432 | if (handlepbp(fname) == 0) { |
| | 1433 | strcat(image_str, "[+pbp]"); |
| | 1434 | ISOgetBuffer = ISOgetBuffer_compr; |
| | 1435 | cdimg_read_func = cdread_compressed; |
| | 1436 | } |
| | 1437 | else if (handlecbin(fname) == 0) { |
| | 1438 | strcat(image_str, "[+cbin]"); |
| | 1439 | ISOgetBuffer = ISOgetBuffer_compr; |
| | 1440 | cdimg_read_func = cdread_compressed; |
| | 1441 | } |
| | 1442 | #ifdef HAVE_CHD |
| | 1443 | else if (handlechd(fname) == 0) { |
| | 1444 | strcat(image_str, "[+chd]"); |
| | 1445 | ISOgetBuffer = ISOgetBuffer_chd; |
| | 1446 | cdimg_read_func = cdread_chd; |
| | 1447 | cdimg_read_sub_func = cdread_sub_chd; |
| | 1448 | } |
| | 1449 | #endif |
| | 1450 | |
| | 1451 | if (!subChanMixed && opensubfile(fname) == 0) { |
| | 1452 | strcat(image_str, "[+sub]"); |
| | 1453 | } |
| | 1454 | if (opensbifile(fname) == 0) { |
| | 1455 | strcat(image_str, "[+sbi]"); |
| | 1456 | } |
| | 1457 | |
| | 1458 | // maybe user selected metadata file instead of main .bin .. |
| | 1459 | bin_filename = fname; |
| | 1460 | if (cdHandle && size_main < 2352 * 0x10) { |
| | 1461 | static const char *exts[] = { ".bin", ".BIN", ".img", ".IMG" }; |
| | 1462 | FILE *tmpf = NULL; |
| | 1463 | size_t i; |
| | 1464 | char *p; |
| | 1465 | |
| | 1466 | strncpy(alt_bin_filename, bin_filename, sizeof(alt_bin_filename)); |
| | 1467 | alt_bin_filename[MAXPATHLEN - 1] = '\0'; |
| | 1468 | if (strlen(alt_bin_filename) >= 4) { |
| | 1469 | p = alt_bin_filename + strlen(alt_bin_filename) - 4; |
| | 1470 | for (i = 0; i < sizeof(exts) / sizeof(exts[0]); i++) { |
| | 1471 | strcpy(p, exts[i]); |
| | 1472 | tmpf = fopen(alt_bin_filename, "rb"); |
| | 1473 | if (tmpf != NULL) |
| | 1474 | break; |
| | 1475 | } |
| | 1476 | } |
| | 1477 | if (tmpf != NULL) { |
| | 1478 | bin_filename = alt_bin_filename; |
| | 1479 | fclose(cdHandle); |
| | 1480 | cdHandle = tmpf; |
| | 1481 | set_static_stdio_buffer(cdHandle); |
| | 1482 | size_main = get_size(cdHandle); |
| | 1483 | } |
| | 1484 | } |
| | 1485 | |
| | 1486 | // guess whether it is mode1/2048 |
| | 1487 | if (cdHandle && cdimg_read_func == cdread_normal && size_main % 2048 == 0) { |
| | 1488 | unsigned int modeTest = 0; |
| | 1489 | if (!fread(&modeTest, sizeof(modeTest), 1, cdHandle)) { |
| | 1490 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); |
| | 1491 | } |
| | 1492 | if (SWAP32(modeTest) != 0xffffff00) { |
| | 1493 | strcat(image_str, "[2048]"); |
| | 1494 | isMode1ISO = TRUE; |
| | 1495 | } |
| | 1496 | } |
| | 1497 | |
| | 1498 | SysPrintf("%s (%lld bytes).\n", image_str, (long long)size_main); |
| | 1499 | |
| | 1500 | PrintTracks(); |
| | 1501 | |
| | 1502 | if (subChanMixed && cdimg_read_func == cdread_normal) { |
| | 1503 | cdimg_read_func = cdread_sub_mixed; |
| | 1504 | cdimg_read_sub_func = cdread_sub_sub_mixed; |
| | 1505 | } |
| | 1506 | else if (isMode1ISO) { |
| | 1507 | cdimg_read_func = cdread_2048; |
| | 1508 | cdimg_read_sub_func = NULL; |
| | 1509 | } |
| | 1510 | |
| | 1511 | return 0; |
| | 1512 | } |
| | 1513 | |
| | 1514 | int ISOclose(void) |
| | 1515 | { |
| | 1516 | int i; |
| | 1517 | |
| | 1518 | if (cdHandle != NULL) { |
| | 1519 | fclose(cdHandle); |
| | 1520 | cdHandle = NULL; |
| | 1521 | } |
| | 1522 | if (subHandle != NULL) { |
| | 1523 | fclose(subHandle); |
| | 1524 | subHandle = NULL; |
| | 1525 | } |
| | 1526 | |
| | 1527 | if (compr_img != NULL) { |
| | 1528 | free(compr_img->index_table); |
| | 1529 | free(compr_img); |
| | 1530 | compr_img = NULL; |
| | 1531 | } |
| | 1532 | |
| | 1533 | #ifdef HAVE_CHD |
| | 1534 | if (chd_img != NULL) { |
| | 1535 | chd_close(chd_img->chd); |
| | 1536 | free(chd_img->buffer); |
| | 1537 | free(chd_img); |
| | 1538 | chd_img = NULL; |
| | 1539 | } |
| | 1540 | #endif |
| | 1541 | |
| | 1542 | for (i = 1; i <= numtracks; i++) { |
| | 1543 | if (ti[i].handle != NULL) { |
| | 1544 | fclose(ti[i].handle); |
| | 1545 | ti[i].handle = NULL; |
| | 1546 | } |
| | 1547 | } |
| | 1548 | numtracks = 0; |
| | 1549 | ti[1].type = 0; |
| | 1550 | UnloadSBI(); |
| | 1551 | |
| | 1552 | memset(cdbuffer, 0, sizeof(cdbuffer)); |
| | 1553 | ISOgetBuffer = ISOgetBuffer_normal; |
| | 1554 | |
| | 1555 | return 0; |
| | 1556 | } |
| | 1557 | |
| | 1558 | int ISOinit(void) |
| | 1559 | { |
| | 1560 | assert(cdHandle == NULL); |
| | 1561 | assert(subHandle == NULL); |
| | 1562 | numtracks = 0; |
| | 1563 | |
| | 1564 | return 0; // do nothing |
| | 1565 | } |
| | 1566 | |
| | 1567 | int ISOshutdown(void) |
| | 1568 | { |
| | 1569 | return ISOclose(); |
| | 1570 | } |
| | 1571 | |
| | 1572 | // return Starting and Ending Track |
| | 1573 | // buffer: |
| | 1574 | // byte 0 - start track |
| | 1575 | // byte 1 - end track |
| | 1576 | int ISOgetTN(unsigned char *buffer) |
| | 1577 | { |
| | 1578 | buffer[0] = 1; |
| | 1579 | |
| | 1580 | if (numtracks > 0) { |
| | 1581 | buffer[1] = numtracks; |
| | 1582 | } |
| | 1583 | else { |
| | 1584 | buffer[1] = 1; |
| | 1585 | } |
| | 1586 | |
| | 1587 | return 0; |
| | 1588 | } |
| | 1589 | |
| | 1590 | // return Track Time |
| | 1591 | // buffer: |
| | 1592 | // byte 0 - minute |
| | 1593 | // byte 1 - second |
| | 1594 | // byte 2 - frame |
| | 1595 | int ISOgetTD(int track, unsigned char *buffer) |
| | 1596 | { |
| | 1597 | if (track == 0) { |
| | 1598 | unsigned int sect; |
| | 1599 | sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length); |
| | 1600 | sec2msf(sect, buffer); |
| | 1601 | } |
| | 1602 | else if (numtracks > 0 && track <= numtracks) { |
| | 1603 | memcpy(buffer, ti[track].start, 3); |
| | 1604 | } |
| | 1605 | else { |
| | 1606 | buffer[2] = 0; |
| | 1607 | buffer[1] = 2; |
| | 1608 | buffer[0] = 0; |
| | 1609 | } |
| | 1610 | |
| | 1611 | return 0; |
| | 1612 | } |
| | 1613 | |
| | 1614 | // decode 'raw' subchannel data ripped by cdrdao |
| | 1615 | static void DecodeRawSubData(unsigned char *subbuffer) { |
| | 1616 | unsigned char subQData[12]; |
| | 1617 | int i; |
| | 1618 | |
| | 1619 | memset(subQData, 0, sizeof(subQData)); |
| | 1620 | |
| | 1621 | for (i = 0; i < 8 * 12; i++) { |
| | 1622 | if (subbuffer[i] & (1 << 6)) { // only subchannel Q is needed |
| | 1623 | subQData[i >> 3] |= (1 << (7 - (i & 7))); |
| | 1624 | } |
| | 1625 | } |
| | 1626 | |
| | 1627 | memcpy(&subbuffer[12], subQData, 12); |
| | 1628 | } |
| | 1629 | |
| | 1630 | // read track |
| | 1631 | // time: byte 0 - minute; byte 1 - second; byte 2 - frame (non-bcd) |
| | 1632 | // buf: if NULL, data is kept in internal buffer accessible by ISOgetBuffer() |
| | 1633 | int ISOreadTrack(const unsigned char *time, void *buf) |
| | 1634 | { |
| | 1635 | int sector = msf2sec(time); |
| | 1636 | long ret; |
| | 1637 | |
| | 1638 | if (!cdHandle && !chd_img) |
| | 1639 | return -1; |
| | 1640 | |
| | 1641 | if (numtracks > 1 && sector >= msf2sec(ti[2].start)) |
| | 1642 | return ISOreadCDDA(time, buf); |
| | 1643 | |
| | 1644 | sector -= 2 * 75; |
| | 1645 | if (pregapOffset && sector >= pregapOffset) |
| | 1646 | sector -= 2 * 75; |
| | 1647 | |
| | 1648 | ret = cdimg_read_func(cdHandle, 0, buf, sector); |
| | 1649 | if (ret < 12*2 + 2048) { |
| | 1650 | if (buf && multifile && sector >= msf2sec(ti[1].length)) { |
| | 1651 | // assume a gap not backed by a file |
| | 1652 | memset(buf, 0, CD_FRAMESIZE_RAW); |
| | 1653 | return 0; |
| | 1654 | } |
| | 1655 | return -1; |
| | 1656 | } |
| | 1657 | |
| | 1658 | return 0; |
| | 1659 | } |
| | 1660 | |
| | 1661 | // read subchannel data |
| | 1662 | int ISOreadSub(const unsigned char *time, void *buffer) |
| | 1663 | { |
| | 1664 | int ret, sector = MSF2SECT(time[0], time[1], time[2]); |
| | 1665 | |
| | 1666 | if (pregapOffset && sector >= pregapOffset) { |
| | 1667 | sector -= 2 * 75; |
| | 1668 | if (sector < pregapOffset) // ? |
| | 1669 | return -1; |
| | 1670 | } |
| | 1671 | |
| | 1672 | if (cdimg_read_sub_func != NULL) { |
| | 1673 | if ((ret = cdimg_read_sub_func(cdHandle, sector, buffer))) |
| | 1674 | return ret; |
| | 1675 | } |
| | 1676 | else if (subHandle != NULL) { |
| | 1677 | if (fseeko(subHandle, sector * SUB_FRAMESIZE, SEEK_SET)) |
| | 1678 | return -1; |
| | 1679 | if (fread(buffer, 1, SUB_FRAMESIZE, subHandle) != SUB_FRAMESIZE) |
| | 1680 | return -1; |
| | 1681 | } |
| | 1682 | else { |
| | 1683 | return -1; |
| | 1684 | } |
| | 1685 | |
| | 1686 | if (subChanRaw) |
| | 1687 | DecodeRawSubData(buffer); |
| | 1688 | return 0; |
| | 1689 | } |
| | 1690 | |
| | 1691 | int ISOgetStatus(struct CdrStat *stat) |
| | 1692 | { |
| | 1693 | CDR__getStatus(stat); |
| | 1694 | |
| | 1695 | // BIOS - boot ID (CD type) |
| | 1696 | stat->Type = ti[1].type; |
| | 1697 | |
| | 1698 | return 0; |
| | 1699 | } |
| | 1700 | |
| | 1701 | // read CDDA sector into buffer |
| | 1702 | int ISOreadCDDA(const unsigned char *time, void *buffer) |
| | 1703 | { |
| | 1704 | unsigned int track, track_start = 0; |
| | 1705 | FILE *handle = cdHandle; |
| | 1706 | unsigned int cddaCurPos; |
| | 1707 | int ret, ret_clear = -1; |
| | 1708 | |
| | 1709 | cddaCurPos = msf2sec(time); |
| | 1710 | |
| | 1711 | // find current track index |
| | 1712 | for (track = numtracks; ; track--) { |
| | 1713 | track_start = msf2sec(ti[track].start); |
| | 1714 | if (track_start <= cddaCurPos) |
| | 1715 | break; |
| | 1716 | if (track == 1) |
| | 1717 | break; |
| | 1718 | } |
| | 1719 | |
| | 1720 | // data tracks play silent |
| | 1721 | if (ti[track].type != CDDA) { |
| | 1722 | ret_clear = 0; |
| | 1723 | goto clear_return; |
| | 1724 | } |
| | 1725 | |
| | 1726 | if (multifile) { |
| | 1727 | // find the file that contains this track |
| | 1728 | unsigned int file; |
| | 1729 | for (file = track; file > 1; file--) { |
| | 1730 | if (ti[file].handle != NULL) { |
| | 1731 | handle = ti[file].handle; |
| | 1732 | break; |
| | 1733 | } |
| | 1734 | } |
| | 1735 | } |
| | 1736 | if (!handle && !chd_img) |
| | 1737 | goto clear_return; |
| | 1738 | |
| | 1739 | ret = cdimg_read_func(handle, ti[track].start_offset, |
| | 1740 | buffer, cddaCurPos - track_start); |
| | 1741 | if (ret != CD_FRAMESIZE_RAW) { |
| | 1742 | if (multifile && cddaCurPos - track_start >= msf2sec(ti[track].length)) |
| | 1743 | ret_clear = 0; // gap |
| | 1744 | goto clear_return; |
| | 1745 | } |
| | 1746 | |
| | 1747 | if (cddaBigEndian && buffer) { |
| | 1748 | unsigned char tmp, *buf = buffer; |
| | 1749 | int i; |
| | 1750 | |
| | 1751 | for (i = 0; i < CD_FRAMESIZE_RAW / 2; i++) { |
| | 1752 | tmp = buf[i * 2]; |
| | 1753 | buf[i * 2] = buf[i * 2 + 1]; |
| | 1754 | buf[i * 2 + 1] = tmp; |
| | 1755 | } |
| | 1756 | } |
| | 1757 | |
| | 1758 | return 0; |
| | 1759 | |
| | 1760 | clear_return: |
| | 1761 | if (buffer) |
| | 1762 | memset(buffer, 0, CD_FRAMESIZE_RAW); |
| | 1763 | return ret_clear; |
| | 1764 | } |
notaz.gp2x.de / pcsx_rearmed.git / blame_incremental