1 /***************************************************************************
2 * Copyright (C) 2007 PCSX-df Team *
3 * Copyright (C) 2009 Wei Mingzhi *
4 * Copyright (C) 2012 notaz *
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. *
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. *
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 ***************************************************************************/
22 #include "psxcommon.h"
29 #define WIN32_LEAN_AND_MEAN
32 #define strcasecmp _stricmp
33 #define usleep(x) Sleep((x) / 1000)
46 #define OFF_T_MSB ((off_t)1 << (sizeof(off_t) * 8 - 1))
48 unsigned int cdrIsoMultidiskCount;
49 unsigned int cdrIsoMultidiskSelect;
51 static FILE *cdHandle = NULL;
52 static FILE *cddaHandle = NULL;
53 static FILE *subHandle = NULL;
55 static boolean subChanMixed = FALSE;
56 static boolean subChanRaw = FALSE;
57 static boolean subChanMissing = FALSE;
59 static boolean multifile = FALSE;
61 static unsigned char cdbuffer[CD_FRAMESIZE_RAW];
62 static unsigned char subbuffer[SUB_FRAMESIZE];
64 static boolean playing = FALSE;
65 static boolean cddaBigEndian = FALSE;
66 /* Frame offset into CD image where pregap data would be found if it was there.
67 * If a game seeks there we must *not* return subchannel data since it's
68 * not in the CD image, so that cdrom code can fake subchannel data instead.
69 * XXX: there could be multiple pregaps but PSX dumps only have one? */
70 static unsigned int pregapOffset;
72 static unsigned int cddaCurPos;
74 // compressed image stuff
76 unsigned char buff_raw[16][CD_FRAMESIZE_RAW];
77 unsigned char buff_compressed[CD_FRAMESIZE_RAW * 16 + 100];
79 unsigned int index_len;
80 unsigned int block_shift;
81 unsigned int current_block;
82 unsigned int sector_in_blk;
87 unsigned char (*buffer)[CD_FRAMESIZE_RAW + SUB_FRAMESIZE];
89 const chd_header* header;
90 unsigned int sectors_per_hunk;
91 unsigned int current_hunk;
92 unsigned int sector_in_hunk;
95 static CHD_IMG *chd_img;
98 int (*cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector);
100 char* CALLBACK CDR__getDriveLetter(void);
101 long CALLBACK CDR__configure(void);
102 long CALLBACK CDR__test(void);
103 void CALLBACK CDR__about(void);
104 long CALLBACK CDR__setfilename(char *filename);
105 long CALLBACK CDR__getStatus(struct CdrStat *stat);
107 static void DecodeRawSubData(void);
110 enum {DATA=1, CDDA} type;
111 char start[3]; // MSF-format
112 char length[3]; // MSF-format
113 FILE *handle; // for multi-track images CDDA
114 unsigned int start_offset; // byte offset from start of above file
117 #define MAXTRACKS 100 /* How many tracks can a CD hold? */
119 static int numtracks = 0;
120 static struct trackinfo ti[MAXTRACKS];
122 // get a sector from a msf-array
123 static unsigned int msf2sec(char *msf) {
124 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
127 static void sec2msf(unsigned int s, char *msf) {
128 msf[0] = s / 75 / 60;
129 s = s - msf[0] * 75 * 60;
135 // divide a string of xx:yy:zz into m, s, f
136 static void tok2msf(char *time, char *msf) {
139 token = strtok(time, ":");
141 msf[0] = atoi(token);
147 token = strtok(NULL, ":");
149 msf[1] = atoi(token);
155 token = strtok(NULL, ":");
157 msf[2] = atoi(token);
164 // stop the CDDA playback
165 static void stopCDDA() {
169 // this function tries to get the .toc file of the given .bin
170 // the necessary data is put into the ti (trackinformation)-array
171 static int parsetoc(const char *isofile) {
172 char tocname[MAXPATHLEN];
174 char linebuf[256], tmp[256], name[256];
176 char time[20], time2[20];
177 unsigned int t, sector_offs, sector_size;
178 unsigned int current_zero_gap = 0;
182 // copy name of the iso and change extension from .bin to .toc
183 strncpy(tocname, isofile, sizeof(tocname));
184 tocname[MAXPATHLEN - 1] = '\0';
185 if (strlen(tocname) >= 4) {
186 strcpy(tocname + strlen(tocname) - 4, ".toc");
192 if ((fi = fopen(tocname, "r")) == NULL) {
193 // try changing extension to .cue (to satisfy some stupid tutorials)
194 strcpy(tocname + strlen(tocname) - 4, ".cue");
195 if ((fi = fopen(tocname, "r")) == NULL) {
196 // if filename is image.toc.bin, try removing .bin (for Brasero)
197 strcpy(tocname, isofile);
199 if (t >= 8 && strcmp(tocname + t - 8, ".toc.bin") == 0) {
200 tocname[t - 4] = '\0';
201 if ((fi = fopen(tocname, "r")) == NULL) {
209 // check if it's really a TOC named as a .cue
210 fgets(linebuf, sizeof(linebuf), fi);
211 token = strtok(linebuf, " ");
212 if (token && strncmp(token, "CD", 2) != 0 && strcmp(token, "CATALOG") != 0) {
216 fseek(fi, 0, SEEK_SET);
219 memset(&ti, 0, sizeof(ti));
220 cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio
222 sector_size = CD_FRAMESIZE_RAW;
223 sector_offs = 2 * 75;
225 // parse the .toc file
226 while (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
228 strncpy(tmp, linebuf, sizeof(linebuf));
229 token = strtok(tmp, " ");
231 if (token == NULL) continue;
233 if (!strcmp(token, "TRACK")) {
234 sector_offs += current_zero_gap;
235 current_zero_gap = 0;
238 token = strtok(NULL, " ");
241 if (!strncmp(token, "MODE2_RAW", 9)) {
242 ti[numtracks].type = DATA;
243 sec2msf(2 * 75, ti[numtracks].start); // assume data track on 0:2:0
245 // check if this image contains mixed subchannel data
246 token = strtok(NULL, " ");
247 if (token != NULL && !strncmp(token, "RW", 2)) {
248 sector_size = CD_FRAMESIZE_RAW + SUB_FRAMESIZE;
250 if (!strncmp(token, "RW_RAW", 6))
254 else if (!strncmp(token, "AUDIO", 5)) {
255 ti[numtracks].type = CDDA;
258 else if (!strcmp(token, "DATAFILE")) {
259 if (ti[numtracks].type == CDDA) {
260 sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2);
261 ti[numtracks].start_offset = t;
262 t = t / sector_size + sector_offs;
263 sec2msf(t, (char *)&ti[numtracks].start);
264 tok2msf((char *)&time2, (char *)&ti[numtracks].length);
267 sscanf(linebuf, "DATAFILE \"%[^\"]\" %8s", name, time);
268 tok2msf((char *)&time, (char *)&ti[numtracks].length);
271 else if (!strcmp(token, "FILE")) {
272 sscanf(linebuf, "FILE \"%[^\"]\" #%d %8s %8s", name, &t, time, time2);
273 tok2msf((char *)&time, (char *)&ti[numtracks].start);
274 t += msf2sec(ti[numtracks].start) * sector_size;
275 ti[numtracks].start_offset = t;
276 t = t / sector_size + sector_offs;
277 sec2msf(t, (char *)&ti[numtracks].start);
278 tok2msf((char *)&time2, (char *)&ti[numtracks].length);
280 else if (!strcmp(token, "ZERO") || !strcmp(token, "SILENCE")) {
281 // skip unneeded optional fields
282 while (token != NULL) {
283 token = strtok(NULL, " ");
284 if (strchr(token, ':') != NULL)
289 current_zero_gap = msf2sec(tmp);
292 t = ti[numtracks - 1].start_offset;
294 pregapOffset = t + msf2sec(ti[numtracks - 1].length);
297 else if (!strcmp(token, "START")) {
298 token = strtok(NULL, " ");
299 if (token != NULL && strchr(token, ':')) {
302 ti[numtracks].start_offset += (t - current_zero_gap) * sector_size;
303 t = msf2sec(ti[numtracks].start) + t;
304 sec2msf(t, (char *)&ti[numtracks].start);
314 // this function tries to get the .cue file of the given .bin
315 // the necessary data is put into the ti (trackinformation)-array
316 static int parsecue(const char *isofile) {
317 char cuename[MAXPATHLEN];
318 char filepath[MAXPATHLEN];
324 char linebuf[256], tmpb[256], dummy[256];
325 unsigned int incue_max_len;
326 unsigned int t, file_len, mode, sector_offs;
327 unsigned int sector_size = 2352;
331 // copy name of the iso and change extension from .bin to .cue
332 strncpy(cuename, isofile, sizeof(cuename));
333 cuename[MAXPATHLEN - 1] = '\0';
334 if (strlen(cuename) >= 4) {
335 strcpy(cuename + strlen(cuename) - 4, ".cue");
341 if ((fi = fopen(cuename, "r")) == NULL) {
345 // Some stupid tutorials wrongly tell users to use cdrdao to rip a
346 // "bin/cue" image, which is in fact a "bin/toc" image. So let's check
348 if (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
349 if (!strncmp(linebuf, "CD_ROM_XA", 9)) {
350 // Don't proceed further, as this is actually a .toc file rather
353 return parsetoc(isofile);
355 fseek(fi, 0, SEEK_SET);
358 // build a path for files referenced in .cue
359 strncpy(filepath, cuename, sizeof(filepath));
360 tmp = strrchr(filepath, '/');
362 tmp = strrchr(filepath, '\\');
368 filepath[sizeof(filepath) - 1] = 0;
370 incue_max_len = sizeof(filepath) - (tmp - filepath) - 1;
372 memset(&ti, 0, sizeof(ti));
375 sector_offs = 2 * 75;
377 while (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
378 strncpy(dummy, linebuf, sizeof(linebuf));
379 token = strtok(dummy, " ");
385 if (!strcmp(token, "TRACK")) {
389 if (strstr(linebuf, "AUDIO") != NULL) {
390 ti[numtracks].type = CDDA;
393 else if (sscanf(linebuf, " TRACK %u MODE%u/%u", &t, &mode, §or_size) == 3)
394 ti[numtracks].type = DATA;
396 SysPrintf(".cue: failed to parse TRACK\n");
397 ti[numtracks].type = numtracks == 1 ? DATA : CDDA;
399 if (sector_size == 0)
402 else if (!strcmp(token, "INDEX")) {
403 if (sscanf(linebuf, " INDEX %02d %8s", &t, time) != 2)
404 SysPrintf(".cue: failed to parse INDEX\n");
405 tok2msf(time, (char *)&ti[numtracks].start);
407 t = msf2sec(ti[numtracks].start);
408 ti[numtracks].start_offset = t * sector_size;
410 sec2msf(t, ti[numtracks].start);
412 // default track length to file length
413 t = file_len - ti[numtracks].start_offset / sector_size;
414 sec2msf(t, ti[numtracks].length);
416 if (numtracks > 1 && ti[numtracks].handle == NULL) {
417 // this track uses the same file as the last,
418 // start of this track is last track's end
419 t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start);
420 sec2msf(t, ti[numtracks - 1].length);
422 if (numtracks > 1 && pregapOffset == -1)
423 pregapOffset = ti[numtracks].start_offset / sector_size;
425 else if (!strcmp(token, "PREGAP")) {
426 if (sscanf(linebuf, " PREGAP %8s", time) == 1) {
427 tok2msf(time, dummy);
428 sector_offs += msf2sec(dummy);
430 pregapOffset = -1; // mark to fill track start_offset
432 else if (!strcmp(token, "FILE")) {
433 t = sscanf(linebuf, " FILE \"%255[^\"]\"", tmpb);
435 sscanf(linebuf, " FILE %255s", tmpb);
438 ti[numtracks + 1].handle = fopen(tmpb, "rb");
439 if (ti[numtracks + 1].handle == NULL) {
441 tmp = strrchr(tmpb, '\\');
443 tmp = strrchr(tmpb, '/');
448 strncpy(incue_fname, tmp, incue_max_len);
449 ti[numtracks + 1].handle = fopen(filepath, "rb");
452 // update global offset if this is not first file in this .cue
453 if (numtracks + 1 > 1) {
455 sector_offs += file_len;
459 if (ti[numtracks + 1].handle == NULL) {
460 SysPrintf(_("\ncould not open: %s\n"), filepath);
463 fseek(ti[numtracks + 1].handle, 0, SEEK_END);
464 file_len = ftell(ti[numtracks + 1].handle) / 2352;
466 if (numtracks == 0 && strlen(isofile) >= 4 &&
467 strcmp(isofile + strlen(isofile) - 4, ".cue") == 0)
469 // user selected .cue as image file, use it's data track instead
471 cdHandle = fopen(filepath, "rb");
481 // this function tries to get the .ccd file of the given .img
482 // the necessary data is put into the ti (trackinformation)-array
483 static int parseccd(const char *isofile) {
484 char ccdname[MAXPATHLEN];
491 // copy name of the iso and change extension from .img to .ccd
492 strncpy(ccdname, isofile, sizeof(ccdname));
493 ccdname[MAXPATHLEN - 1] = '\0';
494 if (strlen(ccdname) >= 4) {
495 strcpy(ccdname + strlen(ccdname) - 4, ".ccd");
501 if ((fi = fopen(ccdname, "r")) == NULL) {
505 memset(&ti, 0, sizeof(ti));
507 while (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
508 if (!strncmp(linebuf, "[TRACK", 6)){
511 else if (!strncmp(linebuf, "MODE=", 5)) {
512 sscanf(linebuf, "MODE=%d", &t);
513 ti[numtracks].type = ((t == 0) ? CDDA : DATA);
515 else if (!strncmp(linebuf, "INDEX 1=", 8)) {
516 sscanf(linebuf, "INDEX 1=%d", &t);
517 sec2msf(t + 2 * 75, ti[numtracks].start);
518 ti[numtracks].start_offset = t * 2352;
520 // If we've already seen another track, this is its end
522 t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start);
523 sec2msf(t, ti[numtracks - 1].length);
530 // Fill out the last track's end based on size
531 if (numtracks >= 1) {
532 fseek(cdHandle, 0, SEEK_END);
533 t = ftell(cdHandle) / 2352 - msf2sec(ti[numtracks].start) + 2 * 75;
534 sec2msf(t, ti[numtracks].length);
540 // this function tries to get the .mds file of the given .mdf
541 // the necessary data is put into the ti (trackinformation)-array
542 static int parsemds(const char *isofile) {
543 char mdsname[MAXPATHLEN];
545 unsigned int offset, extra_offset, l, i;
550 // copy name of the iso and change extension from .mdf to .mds
551 strncpy(mdsname, isofile, sizeof(mdsname));
552 mdsname[MAXPATHLEN - 1] = '\0';
553 if (strlen(mdsname) >= 4) {
554 strcpy(mdsname + strlen(mdsname) - 4, ".mds");
560 if ((fi = fopen(mdsname, "rb")) == NULL) {
564 memset(&ti, 0, sizeof(ti));
566 // check if it's a valid mds file
567 fread(&i, 1, sizeof(unsigned int), fi);
569 if (i != 0x4944454D) {
570 // not an valid mds file
575 // get offset to session block
576 fseek(fi, 0x50, SEEK_SET);
577 fread(&offset, 1, sizeof(unsigned int), fi);
578 offset = SWAP32(offset);
580 // get total number of tracks
582 fseek(fi, offset, SEEK_SET);
583 fread(&s, 1, sizeof(unsigned short), fi);
587 // get offset to track blocks
588 fseek(fi, 4, SEEK_CUR);
589 fread(&offset, 1, sizeof(unsigned int), fi);
590 offset = SWAP32(offset);
594 fseek(fi, offset + 4, SEEK_SET);
595 if (fgetc(fi) < 0xA0) {
601 // check if the image contains mixed subchannel data
602 fseek(fi, offset + 1, SEEK_SET);
603 subChanMixed = subChanRaw = (fgetc(fi) ? TRUE : FALSE);
606 for (i = 1; i <= numtracks; i++) {
607 fseek(fi, offset, SEEK_SET);
609 // get the track type
610 ti[i].type = ((fgetc(fi) == 0xA9) ? CDDA : DATA);
611 fseek(fi, 8, SEEK_CUR);
613 // get the track starting point
614 ti[i].start[0] = fgetc(fi);
615 ti[i].start[1] = fgetc(fi);
616 ti[i].start[2] = fgetc(fi);
618 fread(&extra_offset, 1, sizeof(unsigned int), fi);
619 extra_offset = SWAP32(extra_offset);
621 // get track start offset (in .mdf)
622 fseek(fi, offset + 0x28, SEEK_SET);
623 fread(&l, 1, sizeof(unsigned int), fi);
625 ti[i].start_offset = l;
628 fseek(fi, extra_offset, SEEK_SET);
629 fread(&l, 1, sizeof(unsigned int), fi);
632 pregapOffset = msf2sec(ti[i].start);
634 // get the track length
635 fread(&l, 1, sizeof(unsigned int), fi);
637 sec2msf(l, ti[i].length);
646 static int handlepbp(const char *isofile) {
649 unsigned int dontcare[8];
650 unsigned int psar_offs;
663 unsigned int dontcare[6];
666 off_t psisoimg_offs, cdimg_base;
667 unsigned int t, cd_length;
668 unsigned int offsettab[8];
669 const char *ext = NULL;
672 if (strlen(isofile) >= 4)
673 ext = isofile + strlen(isofile) - 4;
674 if (ext == NULL || (strcmp(ext, ".pbp") != 0 && strcmp(ext, ".PBP") != 0))
677 fseeko(cdHandle, 0, SEEK_SET);
681 ret = fread(&pbp_hdr, 1, sizeof(pbp_hdr), cdHandle);
682 if (ret != sizeof(pbp_hdr)) {
683 SysPrintf("failed to read pbp\n");
687 ret = fseeko(cdHandle, pbp_hdr.psar_offs, SEEK_SET);
689 SysPrintf("failed to seek to %x\n", pbp_hdr.psar_offs);
693 psisoimg_offs = pbp_hdr.psar_offs;
694 fread(psar_sig, 1, sizeof(psar_sig), cdHandle);
696 if (strcmp(psar_sig, "PSTITLEIMG") == 0) {
698 ret = fseeko(cdHandle, pbp_hdr.psar_offs + 0x200, SEEK_SET);
700 SysPrintf("failed to seek to %x\n", pbp_hdr.psar_offs + 0x200);
704 if (fread(&offsettab, 1, sizeof(offsettab), cdHandle) != sizeof(offsettab)) {
705 SysPrintf("failed to read offsettab\n");
709 for (i = 0; i < sizeof(offsettab) / sizeof(offsettab[0]); i++) {
710 if (offsettab[i] == 0)
713 cdrIsoMultidiskCount = i;
714 if (cdrIsoMultidiskCount == 0) {
715 SysPrintf("multidisk eboot has 0 images?\n");
719 if (cdrIsoMultidiskSelect >= cdrIsoMultidiskCount)
720 cdrIsoMultidiskSelect = 0;
722 psisoimg_offs += offsettab[cdrIsoMultidiskSelect];
724 ret = fseeko(cdHandle, psisoimg_offs, SEEK_SET);
726 SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs);
730 fread(psar_sig, 1, sizeof(psar_sig), cdHandle);
734 if (strcmp(psar_sig, "PSISOIMG00") != 0) {
735 SysPrintf("bad psar_sig: %s\n", psar_sig);
740 ret = fseeko(cdHandle, psisoimg_offs + 0x800, SEEK_SET);
742 SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs + 0x800);
746 // first 3 entries are special
747 fseek(cdHandle, sizeof(toc_entry), SEEK_CUR);
748 fread(&toc_entry, 1, sizeof(toc_entry), cdHandle);
749 numtracks = btoi(toc_entry.index1[0]);
751 fread(&toc_entry, 1, sizeof(toc_entry), cdHandle);
752 cd_length = btoi(toc_entry.index1[0]) * 60 * 75 +
753 btoi(toc_entry.index1[1]) * 75 + btoi(toc_entry.index1[2]);
755 for (i = 1; i <= numtracks; i++) {
756 fread(&toc_entry, 1, sizeof(toc_entry), cdHandle);
758 ti[i].type = (toc_entry.type == 1) ? CDDA : DATA;
760 ti[i].start_offset = btoi(toc_entry.index0[0]) * 60 * 75 +
761 btoi(toc_entry.index0[1]) * 75 + btoi(toc_entry.index0[2]);
762 ti[i].start_offset *= 2352;
763 ti[i].start[0] = btoi(toc_entry.index1[0]);
764 ti[i].start[1] = btoi(toc_entry.index1[1]);
765 ti[i].start[2] = btoi(toc_entry.index1[2]);
768 t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start);
769 sec2msf(t, ti[i - 1].length);
772 t = cd_length - ti[numtracks].start_offset / 2352;
773 sec2msf(t, ti[numtracks].length);
776 ret = fseeko(cdHandle, psisoimg_offs + 0x4000, SEEK_SET);
778 SysPrintf("failed to seek to ISO index\n");
782 compr_img = calloc(1, sizeof(*compr_img));
783 if (compr_img == NULL)
786 compr_img->block_shift = 4;
787 compr_img->current_block = (unsigned int)-1;
789 compr_img->index_len = (0x100000 - 0x4000) / sizeof(index_entry);
790 compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0]));
791 if (compr_img->index_table == NULL)
794 cdimg_base = psisoimg_offs + 0x100000;
795 for (i = 0; i < compr_img->index_len; i++) {
796 ret = fread(&index_entry, 1, sizeof(index_entry), cdHandle);
797 if (ret != sizeof(index_entry)) {
798 SysPrintf("failed to read index_entry #%d\n", i);
802 if (index_entry.size == 0)
805 compr_img->index_table[i] = cdimg_base + index_entry.offset;
807 compr_img->index_table[i] = cdimg_base + index_entry.offset + index_entry.size;
812 free(compr_img->index_table);
813 compr_img->index_table = NULL;
815 if (compr_img != NULL) {
822 static int handlecbin(const char *isofile) {
826 unsigned int header_size;
827 unsigned long long total_bytes;
828 unsigned int block_size;
829 unsigned char ver; // 1
831 unsigned char rsv_06[2];
833 const char *ext = NULL;
834 unsigned int *index_table = NULL;
835 unsigned int index = 0, plain;
838 if (strlen(isofile) >= 5)
839 ext = isofile + strlen(isofile) - 5;
840 if (ext == NULL || (strcasecmp(ext + 1, ".cbn") != 0 && strcasecmp(ext, ".cbin") != 0))
843 fseek(cdHandle, 0, SEEK_SET);
845 ret = fread(&ciso_hdr, 1, sizeof(ciso_hdr), cdHandle);
846 if (ret != sizeof(ciso_hdr)) {
847 SysPrintf("failed to read ciso header\n");
851 if (strncmp(ciso_hdr.magic, "CISO", 4) != 0 || ciso_hdr.total_bytes <= 0 || ciso_hdr.block_size <= 0) {
852 SysPrintf("bad ciso header\n");
855 if (ciso_hdr.header_size != 0 && ciso_hdr.header_size != sizeof(ciso_hdr)) {
856 ret = fseeko(cdHandle, ciso_hdr.header_size, SEEK_SET);
858 SysPrintf("failed to seek to %x\n", ciso_hdr.header_size);
863 compr_img = calloc(1, sizeof(*compr_img));
864 if (compr_img == NULL)
867 compr_img->block_shift = 0;
868 compr_img->current_block = (unsigned int)-1;
870 compr_img->index_len = ciso_hdr.total_bytes / ciso_hdr.block_size;
871 index_table = malloc((compr_img->index_len + 1) * sizeof(index_table[0]));
872 if (index_table == NULL)
875 ret = fread(index_table, sizeof(index_table[0]), compr_img->index_len, cdHandle);
876 if (ret != compr_img->index_len) {
877 SysPrintf("failed to read index table\n");
881 compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0]));
882 if (compr_img->index_table == NULL)
885 for (i = 0; i < compr_img->index_len + 1; i++) {
886 index = index_table[i];
887 plain = index & 0x80000000;
889 compr_img->index_table[i] = (off_t)index << ciso_hdr.align;
891 compr_img->index_table[i] |= OFF_T_MSB;
899 if (compr_img != NULL) {
907 static int handlechd(const char *isofile) {
908 int frame_offset = 0;
911 chd_img = (CHD_IMG *)calloc(1, sizeof(*chd_img));
915 if(chd_open(isofile, CHD_OPEN_READ, NULL, &chd_img->chd) != CHDERR_NONE)
918 chd_img->header = chd_get_header(chd_img->chd);
920 chd_img->buffer = (unsigned char (*)[CD_FRAMESIZE_RAW + SUB_FRAMESIZE])malloc(chd_img->header->hunkbytes);
921 if (chd_img->buffer == NULL)
924 chd_img->sectors_per_hunk = chd_img->header->hunkbytes / (CD_FRAMESIZE_RAW + SUB_FRAMESIZE);
925 chd_img->current_hunk = (unsigned int)-1;
927 cddaBigEndian = TRUE;
930 memset(ti, 0, sizeof(ti));
945 uint32_t meta_size = 0;
947 if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA2_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE)
948 sscanf(meta, CDROM_TRACK_METADATA2_FORMAT, &md.track, md.type, md.subtype, &md.frames, &md.pregap, md.pgtype, md.pgsub, &md.postgap);
949 else if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE)
950 sscanf(meta, CDROM_TRACK_METADATA_FORMAT, &md.track, md.type, md.subtype, &md.frames);
957 sec2msf(msf2sec(ti[md.track-1].length) + md.pregap, ti[md.track-1].length);
959 ti[md.track].type = !strncmp(md.type, "AUDIO", 5) ? CDDA : DATA;
961 sec2msf(frame_offset + md.pregap, ti[md.track].start);
962 sec2msf(md.frames, ti[md.track].length);
964 ti[md.track].start_offset = file_offset;
966 frame_offset += md.pregap + md.frames + md.postgap;
967 file_offset += md.frames + md.postgap;
975 if (chd_img != NULL) {
976 free(chd_img->buffer);
984 // this function tries to get the .sub file of the given .img
985 static int opensubfile(const char *isoname) {
986 char subname[MAXPATHLEN];
988 // copy name of the iso and change extension from .img to .sub
989 strncpy(subname, isoname, sizeof(subname));
990 subname[MAXPATHLEN - 1] = '\0';
991 if (strlen(subname) >= 4) {
992 strcpy(subname + strlen(subname) - 4, ".sub");
998 subHandle = fopen(subname, "rb");
999 if (subHandle == NULL) {
1006 static int opensbifile(const char *isoname) {
1007 char sbiname[MAXPATHLEN];
1010 strncpy(sbiname, isoname, sizeof(sbiname));
1011 sbiname[MAXPATHLEN - 1] = '\0';
1012 if (strlen(sbiname) >= 4) {
1013 strcpy(sbiname + strlen(sbiname) - 4, ".sbi");
1019 fseek(cdHandle, 0, SEEK_END);
1020 s = ftell(cdHandle) / 2352;
1022 return LoadSBI(sbiname, s);
1025 static int cdread_normal(FILE *f, unsigned int base, void *dest, int sector)
1027 fseek(f, base + sector * CD_FRAMESIZE_RAW, SEEK_SET);
1028 return fread(dest, 1, CD_FRAMESIZE_RAW, f);
1031 static int cdread_sub_mixed(FILE *f, unsigned int base, void *dest, int sector)
1035 fseek(f, base + sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE), SEEK_SET);
1036 ret = fread(dest, 1, CD_FRAMESIZE_RAW, f);
1037 fread(subbuffer, 1, SUB_FRAMESIZE, f);
1039 if (subChanRaw) DecodeRawSubData();
1044 static int uncompress2_pcsx(void *out, unsigned long *out_size, void *in, unsigned long in_size)
1049 if (z.zalloc == NULL) {
1050 // XXX: one-time leak here..
1056 ret = inflateInit2(&z, -15);
1059 ret = inflateReset(&z);
1064 z.avail_in = in_size;
1066 z.avail_out = *out_size;
1068 ret = inflate(&z, Z_NO_FLUSH);
1071 *out_size -= z.avail_out;
1072 return ret == 1 ? 0 : ret;
1075 static int cdread_compressed(FILE *f, unsigned int base, void *dest, int sector)
1077 unsigned long cdbuffer_size, cdbuffer_size_expect;
1084 sector += base / 2352;
1086 block = sector >> compr_img->block_shift;
1087 compr_img->sector_in_blk = sector & ((1 << compr_img->block_shift) - 1);
1089 if (block == compr_img->current_block) {
1090 //printf("hit sect %d\n", sector);
1094 if (sector >= compr_img->index_len * 16) {
1095 SysPrintf("sector %d is past img end\n", sector);
1099 start_byte = compr_img->index_table[block] & ~OFF_T_MSB;
1100 if (fseeko(cdHandle, start_byte, SEEK_SET) != 0) {
1101 SysPrintf("seek error for block %d at %llx: ",
1102 block, (long long)start_byte);
1107 is_compressed = !(compr_img->index_table[block] & OFF_T_MSB);
1108 size = (compr_img->index_table[block + 1] & ~OFF_T_MSB) - start_byte;
1109 if (size > sizeof(compr_img->buff_compressed)) {
1110 SysPrintf("block %d is too large: %u\n", block, size);
1114 if (fread(is_compressed ? compr_img->buff_compressed : compr_img->buff_raw[0],
1115 1, size, cdHandle) != size) {
1116 SysPrintf("read error for block %d at %x: ", block, start_byte);
1121 if (is_compressed) {
1122 cdbuffer_size_expect = sizeof(compr_img->buff_raw[0]) << compr_img->block_shift;
1123 cdbuffer_size = cdbuffer_size_expect;
1124 ret = uncompress2_pcsx(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size);
1126 SysPrintf("uncompress failed with %d for block %d, sector %d\n",
1127 ret, block, sector);
1130 if (cdbuffer_size != cdbuffer_size_expect)
1131 SysPrintf("cdbuffer_size: %lu != %lu, sector %d\n", cdbuffer_size,
1132 cdbuffer_size_expect, sector);
1136 compr_img->current_block = block;
1139 if (dest != cdbuffer) // copy avoid HACK
1140 memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk],
1142 return CD_FRAMESIZE_RAW;
1146 static int cdread_chd(FILE *f, unsigned int base, void *dest, int sector)
1153 hunk = sector / chd_img->sectors_per_hunk;
1154 chd_img->sector_in_hunk = sector % chd_img->sectors_per_hunk;
1156 if (hunk != chd_img->current_hunk)
1158 chd_read(chd_img->chd, hunk, chd_img->buffer);
1159 chd_img->current_hunk = hunk;
1162 if (dest != cdbuffer) // copy avoid HACK
1163 memcpy(dest, chd_img->buffer[chd_img->sector_in_hunk],
1165 return CD_FRAMESIZE_RAW;
1169 static int cdread_2048(FILE *f, unsigned int base, void *dest, int sector)
1173 fseek(f, base + sector * 2048, SEEK_SET);
1174 ret = fread((char *)dest + 12 * 2, 1, 2048, f);
1176 // not really necessary, fake mode 2 header
1177 memset(cdbuffer, 0, 12 * 2);
1178 sec2msf(sector + 2 * 75, (char *)&cdbuffer[12]);
1179 cdbuffer[12 + 3] = 1;
1184 static unsigned char * CALLBACK ISOgetBuffer_compr(void) {
1185 return compr_img->buff_raw[compr_img->sector_in_blk] + 12;
1189 static unsigned char *ISOgetBuffer_chd(void) {
1190 return chd_img->buffer[chd_img->sector_in_hunk] + 12;
1194 static unsigned char * CALLBACK ISOgetBuffer(void) {
1195 return cdbuffer + 12;
1198 static void PrintTracks(void) {
1201 for (i = 1; i <= numtracks; i++) {
1202 SysPrintf(_("Track %.2d (%s) - Start %.2d:%.2d:%.2d, Length %.2d:%.2d:%.2d\n"),
1203 i, (ti[i].type == DATA ? "DATA" : "AUDIO"),
1204 ti[i].start[0], ti[i].start[1], ti[i].start[2],
1205 ti[i].length[0], ti[i].length[1], ti[i].length[2]);
1209 // This function is invoked by the front-end when opening an ISO
1210 // file for playback
1211 static long CALLBACK ISOopen(void) {
1212 boolean isMode1ISO = FALSE;
1213 char alt_bin_filename[MAXPATHLEN];
1214 const char *bin_filename;
1216 if (cdHandle != NULL) {
1217 return 0; // it's already open
1220 cdHandle = fopen(GetIsoFile(), "rb");
1221 if (cdHandle == NULL) {
1222 SysPrintf(_("Could't open '%s' for reading: %s\n"),
1223 GetIsoFile(), strerror(errno));
1227 SysPrintf(_("Loaded CD Image: %s"), GetIsoFile());
1229 cddaBigEndian = FALSE;
1230 subChanMixed = FALSE;
1233 cdrIsoMultidiskCount = 1;
1236 CDR_getBuffer = ISOgetBuffer;
1237 cdimg_read_func = cdread_normal;
1239 if (parsetoc(GetIsoFile()) == 0) {
1240 SysPrintf("[+toc]");
1242 else if (parseccd(GetIsoFile()) == 0) {
1243 SysPrintf("[+ccd]");
1245 else if (parsemds(GetIsoFile()) == 0) {
1246 SysPrintf("[+mds]");
1248 else if (parsecue(GetIsoFile()) == 0) {
1249 SysPrintf("[+cue]");
1251 if (handlepbp(GetIsoFile()) == 0) {
1253 CDR_getBuffer = ISOgetBuffer_compr;
1254 cdimg_read_func = cdread_compressed;
1256 else if (handlecbin(GetIsoFile()) == 0) {
1257 SysPrintf("[cbin]");
1258 CDR_getBuffer = ISOgetBuffer_compr;
1259 cdimg_read_func = cdread_compressed;
1263 else if (handlechd(GetIsoFile()) == 0) {
1265 CDR_getBuffer = ISOgetBuffer_chd;
1266 cdimg_read_func = cdread_chd;
1270 if (!subChanMixed && opensubfile(GetIsoFile()) == 0) {
1271 SysPrintf("[+sub]");
1273 if (opensbifile(GetIsoFile()) == 0) {
1274 SysPrintf("[+sbi]");
1277 fseeko(cdHandle, 0, SEEK_END);
1279 // maybe user selected metadata file instead of main .bin ..
1280 bin_filename = GetIsoFile();
1281 if (ftello(cdHandle) < 2352 * 0x10) {
1282 static const char *exts[] = { ".bin", ".BIN", ".img", ".IMG" };
1287 strncpy(alt_bin_filename, bin_filename, sizeof(alt_bin_filename));
1288 alt_bin_filename[MAXPATHLEN - 1] = '\0';
1289 if (strlen(alt_bin_filename) >= 4) {
1290 p = alt_bin_filename + strlen(alt_bin_filename) - 4;
1291 for (i = 0; i < sizeof(exts) / sizeof(exts[0]); i++) {
1293 tmpf = fopen(alt_bin_filename, "rb");
1299 bin_filename = alt_bin_filename;
1302 fseeko(cdHandle, 0, SEEK_END);
1306 // guess whether it is mode1/2048
1307 if (ftello(cdHandle) % 2048 == 0) {
1308 unsigned int modeTest = 0;
1309 fseek(cdHandle, 0, SEEK_SET);
1310 fread(&modeTest, 4, 1, cdHandle);
1311 if (SWAP32(modeTest) != 0xffffff00) {
1312 SysPrintf("[2048]");
1316 fseek(cdHandle, 0, SEEK_SET);
1323 cdimg_read_func = cdread_sub_mixed;
1324 else if (isMode1ISO)
1325 cdimg_read_func = cdread_2048;
1327 // make sure we have another handle open for cdda
1328 if (numtracks > 1 && ti[1].handle == NULL) {
1329 ti[1].handle = fopen(bin_filename, "rb");
1335 static long CALLBACK ISOclose(void) {
1338 if (cdHandle != NULL) {
1342 if (subHandle != NULL) {
1349 if (compr_img != NULL) {
1350 free(compr_img->index_table);
1356 if (chd_img != NULL) {
1357 chd_close(chd_img->chd);
1358 free(chd_img->buffer);
1364 for (i = 1; i <= numtracks; i++) {
1365 if (ti[i].handle != NULL) {
1366 fclose(ti[i].handle);
1367 ti[i].handle = NULL;
1374 memset(cdbuffer, 0, sizeof(cdbuffer));
1375 CDR_getBuffer = ISOgetBuffer;
1380 static long CALLBACK ISOinit(void) {
1381 assert(cdHandle == NULL);
1382 assert(subHandle == NULL);
1384 return 0; // do nothing
1387 static long CALLBACK ISOshutdown(void) {
1392 // return Starting and Ending Track
1394 // byte 0 - start track
1395 // byte 1 - end track
1396 static long CALLBACK ISOgetTN(unsigned char *buffer) {
1399 if (numtracks > 0) {
1400 buffer[1] = numtracks;
1409 // return Track Time
1414 static long CALLBACK ISOgetTD(unsigned char track, unsigned char *buffer) {
1417 unsigned char time[3];
1418 sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length);
1419 sec2msf(sect, (char *)time);
1420 buffer[2] = time[0];
1421 buffer[1] = time[1];
1422 buffer[0] = time[2];
1424 else if (numtracks > 0 && track <= numtracks) {
1425 buffer[2] = ti[track].start[0];
1426 buffer[1] = ti[track].start[1];
1427 buffer[0] = ti[track].start[2];
1438 // decode 'raw' subchannel data ripped by cdrdao
1439 static void DecodeRawSubData(void) {
1440 unsigned char subQData[12];
1443 memset(subQData, 0, sizeof(subQData));
1445 for (i = 0; i < 8 * 12; i++) {
1446 if (subbuffer[i] & (1 << 6)) { // only subchannel Q is needed
1447 subQData[i >> 3] |= (1 << (7 - (i & 7)));
1451 memcpy(&subbuffer[12], subQData, 12);
1455 // time: byte 0 - minute; byte 1 - second; byte 2 - frame
1457 static boolean CALLBACK ISOreadTrack(unsigned char *time) {
1458 int sector = MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2]));
1461 if (cdHandle == NULL) {
1466 subChanMissing = FALSE;
1467 if (sector >= pregapOffset) {
1469 if (sector < pregapOffset)
1470 subChanMissing = TRUE;
1474 ret = cdimg_read_func(cdHandle, 0, cdbuffer, sector);
1478 if (subHandle != NULL) {
1479 fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET);
1480 fread(subbuffer, 1, SUB_FRAMESIZE, subHandle);
1482 if (subChanRaw) DecodeRawSubData();
1489 // sector: byte 0 - minute; byte 1 - second; byte 2 - frame
1490 // does NOT uses bcd format
1491 static long CALLBACK ISOplay(unsigned char *time) {
1497 static long CALLBACK ISOstop(void) {
1502 // gets subchannel data
1503 static unsigned char* CALLBACK ISOgetBufferSub(void) {
1504 if ((subHandle != NULL || subChanMixed) && !subChanMissing) {
1511 static long CALLBACK ISOgetStatus(struct CdrStat *stat) {
1514 CDR__getStatus(stat);
1518 stat->Status |= 0x80;
1521 // BIOS - boot ID (CD type)
1522 stat->Type = ti[1].type;
1525 // relative -> absolute time
1527 sec2msf(sect, (char *)stat->Time);
1532 // read CDDA sector into buffer
1533 long CALLBACK ISOreadCDDA(unsigned char m, unsigned char s, unsigned char f, unsigned char *buffer) {
1534 unsigned char msf[3] = {m, s, f};
1535 unsigned int file, track, track_start = 0;
1538 cddaCurPos = msf2sec((char *)msf);
1540 // find current track index
1541 for (track = numtracks; ; track--) {
1542 track_start = msf2sec(ti[track].start);
1543 if (track_start <= cddaCurPos)
1549 // data tracks play silent
1550 if (ti[track].type != CDDA) {
1551 memset(buffer, 0, CD_FRAMESIZE_RAW);
1557 // find the file that contains this track
1558 for (file = track; file > 1; file--)
1559 if (ti[file].handle != NULL)
1563 ret = cdimg_read_func(ti[file].handle, ti[track].start_offset,
1564 buffer, cddaCurPos - track_start);
1565 if (ret != CD_FRAMESIZE_RAW) {
1566 memset(buffer, 0, CD_FRAMESIZE_RAW);
1570 if (cddaBigEndian) {
1574 for (i = 0; i < CD_FRAMESIZE_RAW / 2; i++) {
1575 tmp = buffer[i * 2];
1576 buffer[i * 2] = buffer[i * 2 + 1];
1577 buffer[i * 2 + 1] = tmp;
1584 void cdrIsoInit(void) {
1586 CDR_shutdown = ISOshutdown;
1588 CDR_close = ISOclose;
1589 CDR_getTN = ISOgetTN;
1590 CDR_getTD = ISOgetTD;
1591 CDR_readTrack = ISOreadTrack;
1592 CDR_getBuffer = ISOgetBuffer;
1595 CDR_getBufferSub = ISOgetBufferSub;
1596 CDR_getStatus = ISOgetStatus;
1597 CDR_readCDDA = ISOreadCDDA;
1599 CDR_getDriveLetter = CDR__getDriveLetter;
1600 CDR_configure = CDR__configure;
1601 CDR_test = CDR__test;
1602 CDR_about = CDR__about;
1603 CDR_setfilename = CDR__setfilename;
1608 int cdrIsoActive(void) {
1609 return (cdHandle != NULL);