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"
35 #define WIN32_LEAN_AND_MEAN
38 #define strcasecmp _stricmp
39 #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 unsigned char sndbuffer[CD_FRAMESIZE_RAW * 10];
66 #define CDDA_FRAMETIME (1000 * (sizeof(sndbuffer) / CD_FRAMESIZE_RAW) / 75)
69 static HANDLE threadid;
71 static pthread_t threadid;
73 static unsigned int initial_offset = 0;
74 static boolean playing = FALSE;
75 static boolean cddaBigEndian = FALSE;
76 // cdda sectors in toc, byte offset in file
77 static unsigned int cdda_cur_sector;
78 static unsigned int cdda_first_sector;
79 static unsigned int cdda_file_offset;
80 /* Frame offset into CD image where pregap data would be found if it was there.
81 * If a game seeks there we must *not* return subchannel data since it's
82 * not in the CD image, so that cdrom code can fake subchannel data instead.
83 * XXX: there could be multiple pregaps but PSX dumps only have one? */
84 static unsigned int pregapOffset;
86 #define cddaCurPos cdda_cur_sector
88 // compressed image stuff
90 unsigned char buff_raw[16][CD_FRAMESIZE_RAW];
91 unsigned char buff_compressed[CD_FRAMESIZE_RAW * 16 + 100];
93 unsigned int index_len;
94 unsigned int block_shift;
95 unsigned int current_block;
96 unsigned int sector_in_blk;
101 unsigned char (*buffer)[CD_FRAMESIZE_RAW + SUB_FRAMESIZE];
103 const chd_header* header;
104 unsigned int sectors_per_hunk;
105 unsigned int current_hunk;
106 unsigned int sector_in_hunk;
110 int (*cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector);
112 char* CALLBACK CDR__getDriveLetter(void);
113 long CALLBACK CDR__configure(void);
114 long CALLBACK CDR__test(void);
115 void CALLBACK CDR__about(void);
116 long CALLBACK CDR__setfilename(char *filename);
117 long CALLBACK CDR__getStatus(struct CdrStat *stat);
119 static void DecodeRawSubData(void);
122 enum {DATA=1, CDDA} type;
123 char start[3]; // MSF-format
124 char length[3]; // MSF-format
125 FILE *handle; // for multi-track images CDDA
126 unsigned int start_offset; // byte offset from start of above file
129 #define MAXTRACKS 100 /* How many tracks can a CD hold? */
131 static int numtracks = 0;
132 static struct trackinfo ti[MAXTRACKS];
134 // get a sector from a msf-array
135 static unsigned int msf2sec(char *msf) {
136 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
139 static void sec2msf(unsigned int s, char *msf) {
140 msf[0] = s / 75 / 60;
141 s = s - msf[0] * 75 * 60;
147 // divide a string of xx:yy:zz into m, s, f
148 static void tok2msf(char *time, char *msf) {
151 token = strtok(time, ":");
153 msf[0] = atoi(token);
159 token = strtok(NULL, ":");
161 msf[1] = atoi(token);
167 token = strtok(NULL, ":");
169 msf[2] = atoi(token);
177 static long GetTickCount(void) {
178 static time_t initial_time = 0;
181 gettimeofday(&now, NULL);
183 if (initial_time == 0) {
184 initial_time = now.tv_sec;
187 return (now.tv_sec - initial_time) * 1000L + now.tv_usec / 1000L;
191 // this thread plays audio data
193 static void playthread(void *param)
195 static void *playthread(void *param)
198 long osleep, d, t, i, s;
200 int ret = 0, sector_offs;
206 for (i = 0; i < sizeof(sndbuffer) / CD_FRAMESIZE_RAW; i++) {
207 sector_offs = cdda_cur_sector - cdda_first_sector;
208 if (sector_offs < 0) {
209 d = CD_FRAMESIZE_RAW;
210 memset(sndbuffer + s, 0, d);
213 d = cdimg_read_func(cddaHandle, cdda_file_offset,
214 sndbuffer + s, sector_offs);
215 if (d < CD_FRAMESIZE_RAW)
229 if (!cdr.Muted && playing) {
231 for (i = 0; i < s / 2; i++) {
232 tmp = sndbuffer[i * 2];
233 sndbuffer[i * 2] = sndbuffer[i * 2 + 1];
234 sndbuffer[i * 2 + 1] = tmp;
238 // can't do it yet due to readahead..
239 //cdrAttenuate((short *)sndbuffer, s / 4, 1);
241 ret = SPU_playCDDAchannel((short *)sndbuffer, s);
246 } while (ret == 0x7761 && playing); // rearmed_wait
249 if (ret != 0x676f) { // !rearmed_go
253 // HACK: stop feeding data while emu is paused
255 while (stop && playing)
260 now = GetTickCount();
266 else if (osleep > CDDA_FRAMETIME) {
267 osleep = CDDA_FRAMETIME;
271 usleep(osleep * 1000);
285 // stop the CDDA playback
286 static void stopCDDA() {
293 WaitForSingleObject(threadid, INFINITE);
295 pthread_join(threadid, NULL);
299 // start the CDDA playback
300 static void startCDDA(void) {
308 threadid = (HANDLE)_beginthread(playthread, 0, NULL);
310 pthread_create(&threadid, NULL, playthread, NULL);
314 // this function tries to get the .toc file of the given .bin
315 // the necessary data is put into the ti (trackinformation)-array
316 static int parsetoc(const char *isofile) {
317 char tocname[MAXPATHLEN];
319 char linebuf[256], tmp[256], name[256];
321 char time[20], time2[20];
322 unsigned int t, sector_offs, sector_size;
323 unsigned int current_zero_gap = 0;
327 // copy name of the iso and change extension from .bin to .toc
328 strncpy(tocname, isofile, sizeof(tocname));
329 tocname[MAXPATHLEN - 1] = '\0';
330 if (strlen(tocname) >= 4) {
331 strcpy(tocname + strlen(tocname) - 4, ".toc");
337 if ((fi = fopen(tocname, "r")) == NULL) {
338 // try changing extension to .cue (to satisfy some stupid tutorials)
339 strcpy(tocname + strlen(tocname) - 4, ".cue");
340 if ((fi = fopen(tocname, "r")) == NULL) {
341 // if filename is image.toc.bin, try removing .bin (for Brasero)
342 strcpy(tocname, isofile);
344 if (t >= 8 && strcmp(tocname + t - 8, ".toc.bin") == 0) {
345 tocname[t - 4] = '\0';
346 if ((fi = fopen(tocname, "r")) == NULL) {
354 // check if it's really a TOC named as a .cue
355 fgets(linebuf, sizeof(linebuf), fi);
356 token = strtok(linebuf, " ");
357 if (token && strncmp(token, "CD", 2) != 0 && strcmp(token, "CATALOG") != 0) {
361 fseek(fi, 0, SEEK_SET);
364 memset(&ti, 0, sizeof(ti));
365 cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio
367 sector_size = CD_FRAMESIZE_RAW;
368 sector_offs = 2 * 75;
370 // parse the .toc file
371 while (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
373 strncpy(tmp, linebuf, sizeof(linebuf));
374 token = strtok(tmp, " ");
376 if (token == NULL) continue;
378 if (!strcmp(token, "TRACK")) {
379 sector_offs += current_zero_gap;
380 current_zero_gap = 0;
383 token = strtok(NULL, " ");
386 if (!strncmp(token, "MODE2_RAW", 9)) {
387 ti[numtracks].type = DATA;
388 sec2msf(2 * 75, ti[numtracks].start); // assume data track on 0:2:0
390 // check if this image contains mixed subchannel data
391 token = strtok(NULL, " ");
392 if (token != NULL && !strncmp(token, "RW", 2)) {
393 sector_size = CD_FRAMESIZE_RAW + SUB_FRAMESIZE;
395 if (!strncmp(token, "RW_RAW", 6))
399 else if (!strncmp(token, "AUDIO", 5)) {
400 ti[numtracks].type = CDDA;
403 else if (!strcmp(token, "DATAFILE")) {
404 if (ti[numtracks].type == CDDA) {
405 sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2);
406 ti[numtracks].start_offset = t;
407 t = t / sector_size + sector_offs;
408 sec2msf(t, (char *)&ti[numtracks].start);
409 tok2msf((char *)&time2, (char *)&ti[numtracks].length);
412 sscanf(linebuf, "DATAFILE \"%[^\"]\" %8s", name, time);
413 tok2msf((char *)&time, (char *)&ti[numtracks].length);
416 else if (!strcmp(token, "FILE")) {
417 sscanf(linebuf, "FILE \"%[^\"]\" #%d %8s %8s", name, &t, time, time2);
418 tok2msf((char *)&time, (char *)&ti[numtracks].start);
419 t += msf2sec(ti[numtracks].start) * sector_size;
420 ti[numtracks].start_offset = t;
421 t = t / sector_size + sector_offs;
422 sec2msf(t, (char *)&ti[numtracks].start);
423 tok2msf((char *)&time2, (char *)&ti[numtracks].length);
425 else if (!strcmp(token, "ZERO") || !strcmp(token, "SILENCE")) {
426 // skip unneeded optional fields
427 while (token != NULL) {
428 token = strtok(NULL, " ");
429 if (strchr(token, ':') != NULL)
434 current_zero_gap = msf2sec(tmp);
437 t = ti[numtracks - 1].start_offset;
439 pregapOffset = t + msf2sec(ti[numtracks - 1].length);
442 else if (!strcmp(token, "START")) {
443 token = strtok(NULL, " ");
444 if (token != NULL && strchr(token, ':')) {
447 ti[numtracks].start_offset += (t - current_zero_gap) * sector_size;
448 t = msf2sec(ti[numtracks].start) + t;
449 sec2msf(t, (char *)&ti[numtracks].start);
459 // this function tries to get the .cue file of the given .bin
460 // the necessary data is put into the ti (trackinformation)-array
461 static int parsecue(const char *isofile) {
462 char cuename[MAXPATHLEN];
463 char filepath[MAXPATHLEN];
469 char linebuf[256], tmpb[256], dummy[256];
470 unsigned int incue_max_len;
471 unsigned int t, file_len, mode, sector_offs;
472 unsigned int sector_size = 2352;
476 // copy name of the iso and change extension from .bin to .cue
477 strncpy(cuename, isofile, sizeof(cuename));
478 cuename[MAXPATHLEN - 1] = '\0';
479 if (strlen(cuename) >= 4) {
480 strcpy(cuename + strlen(cuename) - 4, ".cue");
486 if ((fi = fopen(cuename, "r")) == NULL) {
490 // Some stupid tutorials wrongly tell users to use cdrdao to rip a
491 // "bin/cue" image, which is in fact a "bin/toc" image. So let's check
493 if (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
494 if (!strncmp(linebuf, "CD_ROM_XA", 9)) {
495 // Don't proceed further, as this is actually a .toc file rather
498 return parsetoc(isofile);
500 fseek(fi, 0, SEEK_SET);
503 // build a path for files referenced in .cue
504 strncpy(filepath, cuename, sizeof(filepath));
505 tmp = strrchr(filepath, '/');
507 tmp = strrchr(filepath, '\\');
513 filepath[sizeof(filepath) - 1] = 0;
515 incue_max_len = sizeof(filepath) - (tmp - filepath) - 1;
517 memset(&ti, 0, sizeof(ti));
520 sector_offs = 2 * 75;
522 while (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
523 strncpy(dummy, linebuf, sizeof(linebuf));
524 token = strtok(dummy, " ");
530 if (!strcmp(token, "TRACK")) {
534 if (strstr(linebuf, "AUDIO") != NULL) {
535 ti[numtracks].type = CDDA;
538 else if (sscanf(linebuf, " TRACK %u MODE%u/%u", &t, &mode, §or_size) == 3)
539 ti[numtracks].type = DATA;
541 SysPrintf(".cue: failed to parse TRACK\n");
542 ti[numtracks].type = numtracks == 1 ? DATA : CDDA;
544 if (sector_size == 0)
547 else if (!strcmp(token, "INDEX")) {
548 if (sscanf(linebuf, " INDEX %02d %8s", &t, time) != 2)
549 SysPrintf(".cue: failed to parse INDEX\n");
550 tok2msf(time, (char *)&ti[numtracks].start);
552 t = msf2sec(ti[numtracks].start);
553 ti[numtracks].start_offset = t * sector_size;
555 sec2msf(t, ti[numtracks].start);
557 // default track length to file length
558 t = file_len - ti[numtracks].start_offset / sector_size;
559 sec2msf(t, ti[numtracks].length);
561 if (numtracks > 1 && ti[numtracks].handle == NULL) {
562 // this track uses the same file as the last,
563 // start of this track is last track's end
564 t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start);
565 sec2msf(t, ti[numtracks - 1].length);
567 if (numtracks > 1 && pregapOffset == -1)
568 pregapOffset = ti[numtracks].start_offset / sector_size;
570 else if (!strcmp(token, "PREGAP")) {
571 if (sscanf(linebuf, " PREGAP %8s", time) == 1) {
572 tok2msf(time, dummy);
573 sector_offs += msf2sec(dummy);
575 pregapOffset = -1; // mark to fill track start_offset
577 else if (!strcmp(token, "FILE")) {
578 t = sscanf(linebuf, " FILE \"%255[^\"]\"", tmpb);
580 sscanf(linebuf, " FILE %255s", tmpb);
582 tmp = strrchr(tmpb, '\\');
584 tmp = strrchr(tmpb, '/');
589 strncpy(incue_fname, tmp, incue_max_len);
590 ti[numtracks + 1].handle = fopen(filepath, "rb");
592 // update global offset if this is not first file in this .cue
593 if (numtracks + 1 > 1) {
595 sector_offs += file_len;
599 if (ti[numtracks + 1].handle == NULL) {
600 SysPrintf(_("\ncould not open: %s\n"), filepath);
603 fseek(ti[numtracks + 1].handle, 0, SEEK_END);
604 file_len = ftell(ti[numtracks + 1].handle) / 2352;
606 if (numtracks == 0 && strlen(isofile) >= 4 &&
607 strcmp(isofile + strlen(isofile) - 4, ".cue") == 0)
609 // user selected .cue as image file, use it's data track instead
611 cdHandle = fopen(filepath, "rb");
621 // this function tries to get the .ccd file of the given .img
622 // the necessary data is put into the ti (trackinformation)-array
623 static int parseccd(const char *isofile) {
624 char ccdname[MAXPATHLEN];
631 // copy name of the iso and change extension from .img to .ccd
632 strncpy(ccdname, isofile, sizeof(ccdname));
633 ccdname[MAXPATHLEN - 1] = '\0';
634 if (strlen(ccdname) >= 4) {
635 strcpy(ccdname + strlen(ccdname) - 4, ".ccd");
641 if ((fi = fopen(ccdname, "r")) == NULL) {
645 memset(&ti, 0, sizeof(ti));
647 while (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
648 if (!strncmp(linebuf, "[TRACK", 6)){
651 else if (!strncmp(linebuf, "MODE=", 5)) {
652 sscanf(linebuf, "MODE=%d", &t);
653 ti[numtracks].type = ((t == 0) ? CDDA : DATA);
655 else if (!strncmp(linebuf, "INDEX 1=", 8)) {
656 sscanf(linebuf, "INDEX 1=%d", &t);
657 sec2msf(t + 2 * 75, ti[numtracks].start);
658 ti[numtracks].start_offset = t * 2352;
660 // If we've already seen another track, this is its end
662 t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start);
663 sec2msf(t, ti[numtracks - 1].length);
670 // Fill out the last track's end based on size
671 if (numtracks >= 1) {
672 fseek(cdHandle, 0, SEEK_END);
673 t = ftell(cdHandle) / 2352 - msf2sec(ti[numtracks].start) + 2 * 75;
674 sec2msf(t, ti[numtracks].length);
680 // this function tries to get the .mds file of the given .mdf
681 // the necessary data is put into the ti (trackinformation)-array
682 static int parsemds(const char *isofile) {
683 char mdsname[MAXPATHLEN];
685 unsigned int offset, extra_offset, l, i;
690 // copy name of the iso and change extension from .mdf to .mds
691 strncpy(mdsname, isofile, sizeof(mdsname));
692 mdsname[MAXPATHLEN - 1] = '\0';
693 if (strlen(mdsname) >= 4) {
694 strcpy(mdsname + strlen(mdsname) - 4, ".mds");
700 if ((fi = fopen(mdsname, "rb")) == NULL) {
704 memset(&ti, 0, sizeof(ti));
706 // check if it's a valid mds file
707 fread(&i, 1, sizeof(unsigned int), fi);
709 if (i != 0x4944454D) {
710 // not an valid mds file
715 // get offset to session block
716 fseek(fi, 0x50, SEEK_SET);
717 fread(&offset, 1, sizeof(unsigned int), fi);
718 offset = SWAP32(offset);
720 // get total number of tracks
722 fseek(fi, offset, SEEK_SET);
723 fread(&s, 1, sizeof(unsigned short), fi);
727 // get offset to track blocks
728 fseek(fi, 4, SEEK_CUR);
729 fread(&offset, 1, sizeof(unsigned int), fi);
730 offset = SWAP32(offset);
734 fseek(fi, offset + 4, SEEK_SET);
735 if (fgetc(fi) < 0xA0) {
741 // check if the image contains mixed subchannel data
742 fseek(fi, offset + 1, SEEK_SET);
743 subChanMixed = subChanRaw = (fgetc(fi) ? TRUE : FALSE);
746 for (i = 1; i <= numtracks; i++) {
747 fseek(fi, offset, SEEK_SET);
749 // get the track type
750 ti[i].type = ((fgetc(fi) == 0xA9) ? CDDA : DATA);
751 fseek(fi, 8, SEEK_CUR);
753 // get the track starting point
754 ti[i].start[0] = fgetc(fi);
755 ti[i].start[1] = fgetc(fi);
756 ti[i].start[2] = fgetc(fi);
758 fread(&extra_offset, 1, sizeof(unsigned int), fi);
759 extra_offset = SWAP32(extra_offset);
761 // get track start offset (in .mdf)
762 fseek(fi, offset + 0x28, SEEK_SET);
763 fread(&l, 1, sizeof(unsigned int), fi);
765 ti[i].start_offset = l;
768 fseek(fi, extra_offset, SEEK_SET);
769 fread(&l, 1, sizeof(unsigned int), fi);
772 pregapOffset = msf2sec(ti[i].start);
774 // get the track length
775 fread(&l, 1, sizeof(unsigned int), fi);
777 sec2msf(l, ti[i].length);
786 static int handlepbp(const char *isofile) {
789 unsigned int dontcare[8];
790 unsigned int psar_offs;
803 unsigned int dontcare[6];
806 off_t psisoimg_offs, cdimg_base;
807 unsigned int t, cd_length;
808 unsigned int offsettab[8];
809 const char *ext = NULL;
812 if (strlen(isofile) >= 4)
813 ext = isofile + strlen(isofile) - 4;
814 if (ext == NULL || (strcmp(ext, ".pbp") != 0 && strcmp(ext, ".PBP") != 0))
817 fseeko(cdHandle, 0, SEEK_SET);
821 ret = fread(&pbp_hdr, 1, sizeof(pbp_hdr), cdHandle);
822 if (ret != sizeof(pbp_hdr)) {
823 SysPrintf("failed to read pbp\n");
827 ret = fseeko(cdHandle, pbp_hdr.psar_offs, SEEK_SET);
829 SysPrintf("failed to seek to %x\n", pbp_hdr.psar_offs);
833 psisoimg_offs = pbp_hdr.psar_offs;
834 fread(psar_sig, 1, sizeof(psar_sig), cdHandle);
836 if (strcmp(psar_sig, "PSTITLEIMG") == 0) {
838 ret = fseeko(cdHandle, pbp_hdr.psar_offs + 0x200, SEEK_SET);
840 SysPrintf("failed to seek to %x\n", pbp_hdr.psar_offs + 0x200);
844 if (fread(&offsettab, 1, sizeof(offsettab), cdHandle) != sizeof(offsettab)) {
845 SysPrintf("failed to read offsettab\n");
849 for (i = 0; i < sizeof(offsettab) / sizeof(offsettab[0]); i++) {
850 if (offsettab[i] == 0)
853 cdrIsoMultidiskCount = i;
854 if (cdrIsoMultidiskCount == 0) {
855 SysPrintf("multidisk eboot has 0 images?\n");
859 if (cdrIsoMultidiskSelect >= cdrIsoMultidiskCount)
860 cdrIsoMultidiskSelect = 0;
862 psisoimg_offs += offsettab[cdrIsoMultidiskSelect];
864 ret = fseeko(cdHandle, psisoimg_offs, SEEK_SET);
866 SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs);
870 fread(psar_sig, 1, sizeof(psar_sig), cdHandle);
874 if (strcmp(psar_sig, "PSISOIMG00") != 0) {
875 SysPrintf("bad psar_sig: %s\n", psar_sig);
880 ret = fseeko(cdHandle, psisoimg_offs + 0x800, SEEK_SET);
882 SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs + 0x800);
886 // first 3 entries are special
887 fseek(cdHandle, sizeof(toc_entry), SEEK_CUR);
888 fread(&toc_entry, 1, sizeof(toc_entry), cdHandle);
889 numtracks = btoi(toc_entry.index1[0]);
891 fread(&toc_entry, 1, sizeof(toc_entry), cdHandle);
892 cd_length = btoi(toc_entry.index1[0]) * 60 * 75 +
893 btoi(toc_entry.index1[1]) * 75 + btoi(toc_entry.index1[2]);
895 for (i = 1; i <= numtracks; i++) {
896 fread(&toc_entry, 1, sizeof(toc_entry), cdHandle);
898 ti[i].type = (toc_entry.type == 1) ? CDDA : DATA;
900 ti[i].start_offset = btoi(toc_entry.index0[0]) * 60 * 75 +
901 btoi(toc_entry.index0[1]) * 75 + btoi(toc_entry.index0[2]);
902 ti[i].start_offset *= 2352;
903 ti[i].start[0] = btoi(toc_entry.index1[0]);
904 ti[i].start[1] = btoi(toc_entry.index1[1]);
905 ti[i].start[2] = btoi(toc_entry.index1[2]);
908 t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start);
909 sec2msf(t, ti[i - 1].length);
912 t = cd_length - ti[numtracks].start_offset / 2352;
913 sec2msf(t, ti[numtracks].length);
916 ret = fseeko(cdHandle, psisoimg_offs + 0x4000, SEEK_SET);
918 SysPrintf("failed to seek to ISO index\n");
922 compr_img = calloc(1, sizeof(*compr_img));
923 if (compr_img == NULL)
926 compr_img->block_shift = 4;
927 compr_img->current_block = (unsigned int)-1;
929 compr_img->index_len = (0x100000 - 0x4000) / sizeof(index_entry);
930 compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0]));
931 if (compr_img->index_table == NULL)
934 cdimg_base = psisoimg_offs + 0x100000;
935 for (i = 0; i < compr_img->index_len; i++) {
936 ret = fread(&index_entry, 1, sizeof(index_entry), cdHandle);
937 if (ret != sizeof(index_entry)) {
938 SysPrintf("failed to read index_entry #%d\n", i);
942 if (index_entry.size == 0)
945 compr_img->index_table[i] = cdimg_base + index_entry.offset;
947 compr_img->index_table[i] = cdimg_base + index_entry.offset + index_entry.size;
952 free(compr_img->index_table);
953 compr_img->index_table = NULL;
955 if (compr_img != NULL) {
962 static int handlecbin(const char *isofile) {
966 unsigned int header_size;
967 unsigned long long total_bytes;
968 unsigned int block_size;
969 unsigned char ver; // 1
971 unsigned char rsv_06[2];
973 const char *ext = NULL;
974 unsigned int *index_table = NULL;
975 unsigned int index = 0, plain;
978 if (strlen(isofile) >= 5)
979 ext = isofile + strlen(isofile) - 5;
980 if (ext == NULL || (strcasecmp(ext + 1, ".cbn") != 0 && strcasecmp(ext, ".cbin") != 0))
983 fseek(cdHandle, 0, SEEK_SET);
985 ret = fread(&ciso_hdr, 1, sizeof(ciso_hdr), cdHandle);
986 if (ret != sizeof(ciso_hdr)) {
987 SysPrintf("failed to read ciso header\n");
991 if (strncmp(ciso_hdr.magic, "CISO", 4) != 0 || ciso_hdr.total_bytes <= 0 || ciso_hdr.block_size <= 0) {
992 SysPrintf("bad ciso header\n");
995 if (ciso_hdr.header_size != 0 && ciso_hdr.header_size != sizeof(ciso_hdr)) {
996 ret = fseeko(cdHandle, ciso_hdr.header_size, SEEK_SET);
998 SysPrintf("failed to seek to %x\n", ciso_hdr.header_size);
1003 compr_img = calloc(1, sizeof(*compr_img));
1004 if (compr_img == NULL)
1007 compr_img->block_shift = 0;
1008 compr_img->current_block = (unsigned int)-1;
1010 compr_img->index_len = ciso_hdr.total_bytes / ciso_hdr.block_size;
1011 index_table = malloc((compr_img->index_len + 1) * sizeof(index_table[0]));
1012 if (index_table == NULL)
1015 ret = fread(index_table, sizeof(index_table[0]), compr_img->index_len, cdHandle);
1016 if (ret != compr_img->index_len) {
1017 SysPrintf("failed to read index table\n");
1021 compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0]));
1022 if (compr_img->index_table == NULL)
1025 for (i = 0; i < compr_img->index_len + 1; i++) {
1026 index = index_table[i];
1027 plain = index & 0x80000000;
1028 index &= 0x7fffffff;
1029 compr_img->index_table[i] = (off_t)index << ciso_hdr.align;
1031 compr_img->index_table[i] |= OFF_T_MSB;
1039 if (compr_img != NULL) {
1047 static int handlechd(const char *isofile) {
1048 chd_img = calloc(1, sizeof(*chd_img));
1049 if (chd_img == NULL)
1052 if(chd_open(isofile, CHD_OPEN_READ, NULL, &chd_img->chd) != CHDERR_NONE)
1055 chd_img->header = chd_get_header(chd_img->chd);
1057 chd_img->buffer = malloc(chd_img->header->hunkbytes);
1058 if (chd_img->buffer == NULL)
1061 chd_img->sectors_per_hunk = chd_img->header->hunkbytes / (CD_FRAMESIZE_RAW + SUB_FRAMESIZE);
1062 chd_img->current_hunk = (unsigned int)-1;
1064 cddaBigEndian = TRUE;
1067 int frame_offset = 150;
1068 memset(ti, 0, sizeof(ti));
1083 uint32_t meta_size = 0;
1085 if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA2_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE)
1086 sscanf(meta, CDROM_TRACK_METADATA2_FORMAT, &md.track, md.type, md.subtype, &md.frames, &md.pregap, md.pgtype, md.pgsub, &md.postgap);
1087 else if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE)
1088 sscanf(meta, CDROM_TRACK_METADATA_FORMAT, &md.track, md.type, md.subtype, &md.frames);
1092 ti[md.track].type = !strncmp(md.type, "AUDIO", 5) ? CDDA : DATA;
1094 sec2msf(frame_offset + md.pregap, ti[md.track].start);
1095 sec2msf(md.frames - md.pregap, ti[md.track].length);
1097 if (!strcmp(md.type, md.pgtype))
1098 frame_offset += md.pregap;
1100 ti[md.track].start_offset = frame_offset * CD_FRAMESIZE_RAW;
1102 frame_offset += md.frames;
1103 frame_offset += md.postgap;
1111 if (chd_img != NULL) {
1112 free(chd_img->buffer);
1120 // this function tries to get the .sub file of the given .img
1121 static int opensubfile(const char *isoname) {
1122 char subname[MAXPATHLEN];
1124 // copy name of the iso and change extension from .img to .sub
1125 strncpy(subname, isoname, sizeof(subname));
1126 subname[MAXPATHLEN - 1] = '\0';
1127 if (strlen(subname) >= 4) {
1128 strcpy(subname + strlen(subname) - 4, ".sub");
1134 subHandle = fopen(subname, "rb");
1135 if (subHandle == NULL) {
1142 static int opensbifile(const char *isoname) {
1143 char sbiname[MAXPATHLEN], disknum[MAXPATHLEN] = "0";
1146 strncpy(sbiname, isoname, sizeof(sbiname));
1147 sbiname[MAXPATHLEN - 1] = '\0';
1148 if (strlen(sbiname) >= 4) {
1149 if (cdrIsoMultidiskCount > 1) {
1150 sprintf(disknum, "_%i.sbi", cdrIsoMultidiskSelect + 1);
1151 strcpy(sbiname + strlen(sbiname) - 4, disknum);
1154 strcpy(sbiname + strlen(sbiname) - 4, ".sbi");
1160 fseek(cdHandle, 0, SEEK_END);
1161 s = ftell(cdHandle) / 2352;
1163 return LoadSBI(sbiname, s);
1166 static int cdread_normal(FILE *f, unsigned int base, void *dest, int sector)
1168 fseek(f, base + sector * CD_FRAMESIZE_RAW, SEEK_SET);
1169 return fread(dest, 1, CD_FRAMESIZE_RAW, f);
1172 static int cdread_sub_mixed(FILE *f, unsigned int base, void *dest, int sector)
1176 fseek(f, base + sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE), SEEK_SET);
1177 ret = fread(dest, 1, CD_FRAMESIZE_RAW, f);
1178 fread(subbuffer, 1, SUB_FRAMESIZE, f);
1180 if (subChanRaw) DecodeRawSubData();
1185 static int uncompress2_pcsx(void *out, unsigned long *out_size, void *in, unsigned long in_size)
1190 if (z.zalloc == NULL) {
1191 // XXX: one-time leak here..
1197 ret = inflateInit2(&z, -15);
1200 ret = inflateReset(&z);
1205 z.avail_in = in_size;
1207 z.avail_out = *out_size;
1209 ret = inflate(&z, Z_NO_FLUSH);
1212 *out_size -= z.avail_out;
1213 return ret == 1 ? 0 : ret;
1216 static int cdread_compressed(FILE *f, unsigned int base, void *dest, int sector)
1218 unsigned long cdbuffer_size, cdbuffer_size_expect;
1225 sector += base / 2352;
1227 block = sector >> compr_img->block_shift;
1228 compr_img->sector_in_blk = sector & ((1 << compr_img->block_shift) - 1);
1230 if (block == compr_img->current_block) {
1231 //printf("hit sect %d\n", sector);
1235 if (sector >= compr_img->index_len * 16) {
1236 SysPrintf("sector %d is past img end\n", sector);
1240 start_byte = compr_img->index_table[block] & ~OFF_T_MSB;
1241 if (fseeko(cdHandle, start_byte, SEEK_SET) != 0) {
1242 SysPrintf("seek error for block %d at %llx: ",
1243 block, (long long)start_byte);
1248 is_compressed = !(compr_img->index_table[block] & OFF_T_MSB);
1249 size = (compr_img->index_table[block + 1] & ~OFF_T_MSB) - start_byte;
1250 if (size > sizeof(compr_img->buff_compressed)) {
1251 SysPrintf("block %d is too large: %u\n", block, size);
1255 if (fread(is_compressed ? compr_img->buff_compressed : compr_img->buff_raw[0],
1256 1, size, cdHandle) != size) {
1257 SysPrintf("read error for block %d at %x: ", block, start_byte);
1262 if (is_compressed) {
1263 cdbuffer_size_expect = sizeof(compr_img->buff_raw[0]) << compr_img->block_shift;
1264 cdbuffer_size = cdbuffer_size_expect;
1265 ret = uncompress2_pcsx(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size);
1267 SysPrintf("uncompress failed with %d for block %d, sector %d\n",
1268 ret, block, sector);
1271 if (cdbuffer_size != cdbuffer_size_expect)
1272 SysPrintf("cdbuffer_size: %lu != %lu, sector %d\n", cdbuffer_size,
1273 cdbuffer_size_expect, sector);
1277 compr_img->current_block = block;
1280 if (dest != cdbuffer) // copy avoid HACK
1281 memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk],
1283 return CD_FRAMESIZE_RAW;
1287 static int cdread_chd(FILE *f, unsigned int base, void *dest, int sector)
1292 sector += base / CD_FRAMESIZE_RAW;
1294 hunk = sector / chd_img->sectors_per_hunk;
1295 chd_img->sector_in_hunk = sector % chd_img->sectors_per_hunk;
1297 if (hunk == chd_img->current_hunk)
1300 chd_read(chd_img->chd, hunk, chd_img->buffer);
1302 chd_img->current_hunk = hunk;
1305 if (dest != cdbuffer) // copy avoid HACK
1306 memcpy(dest, chd_img->buffer[chd_img->sector_in_hunk],
1308 return CD_FRAMESIZE_RAW;
1311 static int cdread_2048(FILE *f, unsigned int base, void *dest, int sector)
1315 fseek(f, base + sector * 2048, SEEK_SET);
1316 ret = fread((char *)dest + 12 * 2, 1, 2048, f);
1318 // not really necessary, fake mode 2 header
1319 memset(cdbuffer, 0, 12 * 2);
1320 sec2msf(sector + 2 * 75, (char *)&cdbuffer[12]);
1321 cdbuffer[12 + 3] = 1;
1326 static unsigned char * CALLBACK ISOgetBuffer_compr(void) {
1327 return compr_img->buff_raw[compr_img->sector_in_blk] + 12;
1331 static unsigned char * CALLBACK ISOgetBuffer_chd(void) {
1332 return chd_img->buffer[chd_img->sector_in_hunk] + 12;
1336 static unsigned char * CALLBACK ISOgetBuffer(void) {
1337 return cdbuffer + 12;
1340 static void PrintTracks(void) {
1343 for (i = 1; i <= numtracks; i++) {
1344 SysPrintf(_("Track %.2d (%s) - Start %.2d:%.2d:%.2d, Length %.2d:%.2d:%.2d\n"),
1345 i, (ti[i].type == DATA ? "DATA" : "AUDIO"),
1346 ti[i].start[0], ti[i].start[1], ti[i].start[2],
1347 ti[i].length[0], ti[i].length[1], ti[i].length[2]);
1351 // This function is invoked by the front-end when opening an ISO
1352 // file for playback
1353 static long CALLBACK ISOopen(void) {
1354 boolean isMode1ISO = FALSE;
1355 char alt_bin_filename[MAXPATHLEN];
1356 const char *bin_filename;
1357 char image_str[1024] = {0};
1359 if (cdHandle != NULL) {
1360 return 0; // it's already open
1363 cdHandle = fopen(GetIsoFile(), "rb");
1364 if (cdHandle == NULL) {
1365 SysPrintf(_("Could't open '%s' for reading: %s\n"),
1366 GetIsoFile(), strerror(errno));
1370 sprintf(image_str, "Loaded CD Image: %s", GetIsoFile());
1372 cddaBigEndian = FALSE;
1373 subChanMixed = FALSE;
1376 cdrIsoMultidiskCount = 1;
1379 CDR_getBuffer = ISOgetBuffer;
1380 cdimg_read_func = cdread_normal;
1382 if (parsetoc(GetIsoFile()) == 0) {
1383 strcat(image_str, "[+toc]");
1385 else if (parseccd(GetIsoFile()) == 0) {
1386 strcat(image_str, "[+ccd]");
1388 else if (parsemds(GetIsoFile()) == 0) {
1389 strcat(image_str, "[+mds]");
1391 else if (parsecue(GetIsoFile()) == 0) {
1392 strcat(image_str, "[+cue]");
1394 if (handlepbp(GetIsoFile()) == 0) {
1395 strcat(image_str, "[+pbp]");
1396 CDR_getBuffer = ISOgetBuffer_compr;
1397 cdimg_read_func = cdread_compressed;
1399 else if (handlecbin(GetIsoFile()) == 0) {
1400 strcat(image_str, "[+cbin]");
1401 CDR_getBuffer = ISOgetBuffer_compr;
1402 cdimg_read_func = cdread_compressed;
1405 else if (handlechd(GetIsoFile()) == 0) {
1406 strcat(image_str, "[+chd]");
1407 CDR_getBuffer = ISOgetBuffer_chd;
1408 cdimg_read_func = cdread_chd;
1412 if (!subChanMixed && opensubfile(GetIsoFile()) == 0) {
1413 strcat(image_str, "[+sub]");
1415 if (opensbifile(GetIsoFile()) == 0) {
1416 strcat(image_str, "[+sbi]");
1419 fseeko(cdHandle, 0, SEEK_END);
1421 // maybe user selected metadata file instead of main .bin ..
1422 bin_filename = GetIsoFile();
1423 if (ftello(cdHandle) < 2352 * 0x10) {
1424 static const char *exts[] = { ".bin", ".BIN", ".img", ".IMG" };
1429 strncpy(alt_bin_filename, bin_filename, sizeof(alt_bin_filename));
1430 alt_bin_filename[MAXPATHLEN - 1] = '\0';
1431 if (strlen(alt_bin_filename) >= 4) {
1432 p = alt_bin_filename + strlen(alt_bin_filename) - 4;
1433 for (i = 0; i < sizeof(exts) / sizeof(exts[0]); i++) {
1435 tmpf = fopen(alt_bin_filename, "rb");
1441 bin_filename = alt_bin_filename;
1444 fseeko(cdHandle, 0, SEEK_END);
1448 // guess whether it is mode1/2048
1449 if (ftello(cdHandle) % 2048 == 0) {
1450 unsigned int modeTest = 0;
1451 fseek(cdHandle, 0, SEEK_SET);
1452 fread(&modeTest, 4, 1, cdHandle);
1453 if (SWAP32(modeTest) != 0xffffff00) {
1454 strcat(image_str, "[2048]");
1458 fseek(cdHandle, 0, SEEK_SET);
1460 SysPrintf("%s.\n", image_str);
1465 cdimg_read_func = cdread_sub_mixed;
1466 else if (isMode1ISO)
1467 cdimg_read_func = cdread_2048;
1469 // make sure we have another handle open for cdda
1470 if (numtracks > 1 && ti[1].handle == NULL) {
1471 ti[1].handle = fopen(bin_filename, "rb");
1473 cdda_cur_sector = 0;
1474 cdda_file_offset = 0;
1479 static long CALLBACK ISOclose(void) {
1482 if (cdHandle != NULL) {
1486 if (subHandle != NULL) {
1493 if (compr_img != NULL) {
1494 free(compr_img->index_table);
1500 if (chd_img != NULL) {
1501 chd_close(chd_img->chd);
1502 free(chd_img->buffer);
1508 for (i = 1; i <= numtracks; i++) {
1509 if (ti[i].handle != NULL) {
1510 fclose(ti[i].handle);
1511 ti[i].handle = NULL;
1518 memset(cdbuffer, 0, sizeof(cdbuffer));
1519 CDR_getBuffer = ISOgetBuffer;
1524 static long CALLBACK ISOinit(void) {
1525 assert(cdHandle == NULL);
1526 assert(subHandle == NULL);
1528 return 0; // do nothing
1531 static long CALLBACK ISOshutdown(void) {
1536 // return Starting and Ending Track
1538 // byte 0 - start track
1539 // byte 1 - end track
1540 static long CALLBACK ISOgetTN(unsigned char *buffer) {
1543 if (numtracks > 0) {
1544 buffer[1] = numtracks;
1553 // return Track Time
1558 static long CALLBACK ISOgetTD(unsigned char track, unsigned char *buffer) {
1561 unsigned char time[3];
1562 sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length);
1563 sec2msf(sect, (char *)time);
1564 buffer[2] = time[0];
1565 buffer[1] = time[1];
1566 buffer[0] = time[2];
1568 else if (numtracks > 0 && track <= numtracks) {
1569 buffer[2] = ti[track].start[0];
1570 buffer[1] = ti[track].start[1];
1571 buffer[0] = ti[track].start[2];
1582 // decode 'raw' subchannel data ripped by cdrdao
1583 static void DecodeRawSubData(void) {
1584 unsigned char subQData[12];
1587 memset(subQData, 0, sizeof(subQData));
1589 for (i = 0; i < 8 * 12; i++) {
1590 if (subbuffer[i] & (1 << 6)) { // only subchannel Q is needed
1591 subQData[i >> 3] |= (1 << (7 - (i & 7)));
1595 memcpy(&subbuffer[12], subQData, 12);
1599 // time: byte 0 - minute; byte 1 - second; byte 2 - frame
1601 static long CALLBACK ISOreadTrack(unsigned char *time) {
1602 int sector = MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2]));
1605 if (cdHandle == NULL) {
1610 subChanMissing = FALSE;
1611 if (sector >= pregapOffset) {
1613 if (sector < pregapOffset)
1614 subChanMissing = TRUE;
1618 ret = cdimg_read_func(cdHandle, 0, cdbuffer, sector);
1622 if (subHandle != NULL) {
1623 fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET);
1624 fread(subbuffer, 1, SUB_FRAMESIZE, subHandle);
1626 if (subChanRaw) DecodeRawSubData();
1633 // sector: byte 0 - minute; byte 1 - second; byte 2 - frame
1634 // does NOT uses bcd format
1635 static long CALLBACK ISOplay(unsigned char *time) {
1642 cdda_cur_sector = msf2sec((char *)time);
1643 for (i = numtracks; i > 1; i--) {
1644 cdda_first_sector = msf2sec(ti[i].start);
1645 if (cdda_first_sector <= cdda_cur_sector + 2 * 75)
1648 cdda_file_offset = ti[i].start_offset;
1650 // find the file that contains this track
1652 if (ti[i].handle != NULL)
1655 cddaHandle = ti[i].handle;
1657 if (SPU_playCDDAchannel != NULL)
1664 static long CALLBACK ISOstop(void) {
1669 // gets subchannel data
1670 static unsigned char* CALLBACK ISOgetBufferSub(void) {
1671 if ((subHandle != NULL || subChanMixed) && !subChanMissing) {
1678 static long CALLBACK ISOgetStatus(struct CdrStat *stat) {
1681 CDR__getStatus(stat);
1685 stat->Status |= 0x80;
1688 // BIOS - boot ID (CD type)
1689 stat->Type = ti[1].type;
1692 // relative -> absolute time
1694 sec2msf(sect, (char *)stat->Time);
1699 // read CDDA sector into buffer
1700 long CALLBACK ISOreadCDDA(unsigned char m, unsigned char s, unsigned char f, unsigned char *buffer) {
1701 unsigned char msf[3] = {m, s, f};
1702 unsigned int file, track, track_start = 0;
1705 cddaCurPos = msf2sec((char *)msf);
1707 // find current track index
1708 for (track = numtracks; ; track--) {
1709 track_start = msf2sec(ti[track].start);
1710 if (track_start <= cddaCurPos)
1716 // data tracks play silent
1717 if (ti[track].type != CDDA) {
1718 memset(buffer, 0, CD_FRAMESIZE_RAW);
1724 // find the file that contains this track
1725 for (file = track; file > 1; file--)
1726 if (ti[file].handle != NULL)
1730 ret = cdimg_read_func(ti[file].handle, ti[track].start_offset,
1731 buffer, cddaCurPos - track_start);
1732 if (ret != CD_FRAMESIZE_RAW) {
1733 memset(buffer, 0, CD_FRAMESIZE_RAW);
1737 if (cddaBigEndian) {
1741 for (i = 0; i < CD_FRAMESIZE_RAW / 2; i++) {
1742 tmp = buffer[i * 2];
1743 buffer[i * 2] = buffer[i * 2 + 1];
1744 buffer[i * 2 + 1] = tmp;
1751 void cdrIsoInit(void) {
1753 CDR_shutdown = ISOshutdown;
1755 CDR_close = ISOclose;
1756 CDR_getTN = ISOgetTN;
1757 CDR_getTD = ISOgetTD;
1758 CDR_readTrack = ISOreadTrack;
1759 CDR_getBuffer = ISOgetBuffer;
1762 CDR_getBufferSub = ISOgetBufferSub;
1763 CDR_getStatus = ISOgetStatus;
1764 CDR_readCDDA = ISOreadCDDA;
1766 CDR_getDriveLetter = CDR__getDriveLetter;
1767 CDR_configure = CDR__configure;
1768 CDR_test = CDR__test;
1769 CDR_about = CDR__about;
1770 CDR_setfilename = CDR__setfilename;
1775 int cdrIsoActive(void) {
1776 return (cdHandle != NULL);