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 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;
109 static CHD_IMG *chd_img;
112 int (*cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector);
114 char* CALLBACK CDR__getDriveLetter(void);
115 long CALLBACK CDR__configure(void);
116 long CALLBACK CDR__test(void);
117 void CALLBACK CDR__about(void);
118 long CALLBACK CDR__setfilename(char *filename);
119 long CALLBACK CDR__getStatus(struct CdrStat *stat);
121 static void DecodeRawSubData(void);
124 enum {DATA=1, CDDA} type;
125 char start[3]; // MSF-format
126 char length[3]; // MSF-format
127 FILE *handle; // for multi-track images CDDA
128 unsigned int start_offset; // byte offset from start of above file
131 #define MAXTRACKS 100 /* How many tracks can a CD hold? */
133 static int numtracks = 0;
134 static struct trackinfo ti[MAXTRACKS];
136 // get a sector from a msf-array
137 static unsigned int msf2sec(char *msf) {
138 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
141 static void sec2msf(unsigned int s, char *msf) {
142 msf[0] = s / 75 / 60;
143 s = s - msf[0] * 75 * 60;
149 // divide a string of xx:yy:zz into m, s, f
150 static void tok2msf(char *time, char *msf) {
153 token = strtok(time, ":");
155 msf[0] = atoi(token);
161 token = strtok(NULL, ":");
163 msf[1] = atoi(token);
169 token = strtok(NULL, ":");
171 msf[2] = atoi(token);
179 static long GetTickCount(void) {
180 static time_t initial_time = 0;
183 gettimeofday(&now, NULL);
185 if (initial_time == 0) {
186 initial_time = now.tv_sec;
189 return (now.tv_sec - initial_time) * 1000L + now.tv_usec / 1000L;
193 // this thread plays audio data
195 static void playthread(void *param)
197 static void *playthread(void *param)
200 long osleep, d, t, i, s;
202 int ret = 0, sector_offs;
208 for (i = 0; i < sizeof(sndbuffer) / CD_FRAMESIZE_RAW; i++) {
209 sector_offs = cdda_cur_sector - cdda_first_sector;
210 if (sector_offs < 0) {
211 d = CD_FRAMESIZE_RAW;
212 memset(sndbuffer + s, 0, d);
215 d = cdimg_read_func(cddaHandle, cdda_file_offset,
216 sndbuffer + s, sector_offs);
217 if (d < CD_FRAMESIZE_RAW)
231 if (!cdr.Muted && playing) {
233 for (i = 0; i < s / 2; i++) {
234 tmp = sndbuffer[i * 2];
235 sndbuffer[i * 2] = sndbuffer[i * 2 + 1];
236 sndbuffer[i * 2 + 1] = tmp;
240 // can't do it yet due to readahead..
241 //cdrAttenuate((short *)sndbuffer, s / 4, 1);
243 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)
258 now = GetTickCount();
264 else if (osleep > CDDA_FRAMETIME) {
265 osleep = CDDA_FRAMETIME;
269 usleep(osleep * 1000);
283 // stop the CDDA playback
284 static void stopCDDA() {
291 WaitForSingleObject(threadid, INFINITE);
293 pthread_join(threadid, NULL);
297 // start the CDDA playback
298 static void startCDDA(void) {
306 threadid = (HANDLE)_beginthread(playthread, 0, NULL);
308 pthread_create(&threadid, NULL, playthread, NULL);
312 // this function tries to get the .toc file of the given .bin
313 // the necessary data is put into the ti (trackinformation)-array
314 static int parsetoc(const char *isofile) {
315 char tocname[MAXPATHLEN];
317 char linebuf[256], tmp[256], name[256];
319 char time[20], time2[20];
320 unsigned int t, sector_offs, sector_size;
321 unsigned int current_zero_gap = 0;
325 // copy name of the iso and change extension from .bin to .toc
326 strncpy(tocname, isofile, sizeof(tocname));
327 tocname[MAXPATHLEN - 1] = '\0';
328 if (strlen(tocname) >= 4) {
329 strcpy(tocname + strlen(tocname) - 4, ".toc");
335 if ((fi = fopen(tocname, "r")) == NULL) {
336 // try changing extension to .cue (to satisfy some stupid tutorials)
337 strcpy(tocname + strlen(tocname) - 4, ".cue");
338 if ((fi = fopen(tocname, "r")) == NULL) {
339 // if filename is image.toc.bin, try removing .bin (for Brasero)
340 strcpy(tocname, isofile);
342 if (t >= 8 && strcmp(tocname + t - 8, ".toc.bin") == 0) {
343 tocname[t - 4] = '\0';
344 if ((fi = fopen(tocname, "r")) == NULL) {
352 // check if it's really a TOC named as a .cue
353 fgets(linebuf, sizeof(linebuf), fi);
354 token = strtok(linebuf, " ");
355 if (token && strncmp(token, "CD", 2) != 0 && strcmp(token, "CATALOG") != 0) {
359 fseek(fi, 0, SEEK_SET);
362 memset(&ti, 0, sizeof(ti));
363 cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio
365 sector_size = CD_FRAMESIZE_RAW;
366 sector_offs = 2 * 75;
368 // parse the .toc file
369 while (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
371 strncpy(tmp, linebuf, sizeof(linebuf));
372 token = strtok(tmp, " ");
374 if (token == NULL) continue;
376 if (!strcmp(token, "TRACK")) {
377 sector_offs += current_zero_gap;
378 current_zero_gap = 0;
381 token = strtok(NULL, " ");
384 if (!strncmp(token, "MODE2_RAW", 9)) {
385 ti[numtracks].type = DATA;
386 sec2msf(2 * 75, ti[numtracks].start); // assume data track on 0:2:0
388 // check if this image contains mixed subchannel data
389 token = strtok(NULL, " ");
390 if (token != NULL && !strncmp(token, "RW", 2)) {
391 sector_size = CD_FRAMESIZE_RAW + SUB_FRAMESIZE;
393 if (!strncmp(token, "RW_RAW", 6))
397 else if (!strncmp(token, "AUDIO", 5)) {
398 ti[numtracks].type = CDDA;
401 else if (!strcmp(token, "DATAFILE")) {
402 if (ti[numtracks].type == CDDA) {
403 sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2);
404 ti[numtracks].start_offset = t;
405 t = t / sector_size + sector_offs;
406 sec2msf(t, (char *)&ti[numtracks].start);
407 tok2msf((char *)&time2, (char *)&ti[numtracks].length);
410 sscanf(linebuf, "DATAFILE \"%[^\"]\" %8s", name, time);
411 tok2msf((char *)&time, (char *)&ti[numtracks].length);
414 else if (!strcmp(token, "FILE")) {
415 sscanf(linebuf, "FILE \"%[^\"]\" #%d %8s %8s", name, &t, time, time2);
416 tok2msf((char *)&time, (char *)&ti[numtracks].start);
417 t += msf2sec(ti[numtracks].start) * sector_size;
418 ti[numtracks].start_offset = t;
419 t = t / sector_size + sector_offs;
420 sec2msf(t, (char *)&ti[numtracks].start);
421 tok2msf((char *)&time2, (char *)&ti[numtracks].length);
423 else if (!strcmp(token, "ZERO") || !strcmp(token, "SILENCE")) {
424 // skip unneeded optional fields
425 while (token != NULL) {
426 token = strtok(NULL, " ");
427 if (strchr(token, ':') != NULL)
432 current_zero_gap = msf2sec(tmp);
435 t = ti[numtracks - 1].start_offset;
437 pregapOffset = t + msf2sec(ti[numtracks - 1].length);
440 else if (!strcmp(token, "START")) {
441 token = strtok(NULL, " ");
442 if (token != NULL && strchr(token, ':')) {
445 ti[numtracks].start_offset += (t - current_zero_gap) * sector_size;
446 t = msf2sec(ti[numtracks].start) + t;
447 sec2msf(t, (char *)&ti[numtracks].start);
457 // this function tries to get the .cue file of the given .bin
458 // the necessary data is put into the ti (trackinformation)-array
459 static int parsecue(const char *isofile) {
460 char cuename[MAXPATHLEN];
461 char filepath[MAXPATHLEN];
467 char linebuf[256], tmpb[256], dummy[256];
468 unsigned int incue_max_len;
469 unsigned int t, file_len, mode, sector_offs;
470 unsigned int sector_size = 2352;
474 // copy name of the iso and change extension from .bin to .cue
475 strncpy(cuename, isofile, sizeof(cuename));
476 cuename[MAXPATHLEN - 1] = '\0';
477 if (strlen(cuename) >= 4) {
478 strcpy(cuename + strlen(cuename) - 4, ".cue");
484 if ((fi = fopen(cuename, "r")) == NULL) {
488 // Some stupid tutorials wrongly tell users to use cdrdao to rip a
489 // "bin/cue" image, which is in fact a "bin/toc" image. So let's check
491 if (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
492 if (!strncmp(linebuf, "CD_ROM_XA", 9)) {
493 // Don't proceed further, as this is actually a .toc file rather
496 return parsetoc(isofile);
498 fseek(fi, 0, SEEK_SET);
501 // build a path for files referenced in .cue
502 strncpy(filepath, cuename, sizeof(filepath));
503 tmp = strrchr(filepath, '/');
505 tmp = strrchr(filepath, '\\');
511 filepath[sizeof(filepath) - 1] = 0;
513 incue_max_len = sizeof(filepath) - (tmp - filepath) - 1;
515 memset(&ti, 0, sizeof(ti));
518 sector_offs = 2 * 75;
520 while (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
521 strncpy(dummy, linebuf, sizeof(linebuf));
522 token = strtok(dummy, " ");
528 if (!strcmp(token, "TRACK")) {
532 if (strstr(linebuf, "AUDIO") != NULL) {
533 ti[numtracks].type = CDDA;
536 else if (sscanf(linebuf, " TRACK %u MODE%u/%u", &t, &mode, §or_size) == 3)
537 ti[numtracks].type = DATA;
539 SysPrintf(".cue: failed to parse TRACK\n");
540 ti[numtracks].type = numtracks == 1 ? DATA : CDDA;
542 if (sector_size == 0)
545 else if (!strcmp(token, "INDEX")) {
546 if (sscanf(linebuf, " INDEX %02d %8s", &t, time) != 2)
547 SysPrintf(".cue: failed to parse INDEX\n");
548 tok2msf(time, (char *)&ti[numtracks].start);
550 t = msf2sec(ti[numtracks].start);
551 ti[numtracks].start_offset = t * sector_size;
553 sec2msf(t, ti[numtracks].start);
555 // default track length to file length
556 t = file_len - ti[numtracks].start_offset / sector_size;
557 sec2msf(t, ti[numtracks].length);
559 if (numtracks > 1 && ti[numtracks].handle == NULL) {
560 // this track uses the same file as the last,
561 // start of this track is last track's end
562 t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start);
563 sec2msf(t, ti[numtracks - 1].length);
565 if (numtracks > 1 && pregapOffset == -1)
566 pregapOffset = ti[numtracks].start_offset / sector_size;
568 else if (!strcmp(token, "PREGAP")) {
569 if (sscanf(linebuf, " PREGAP %8s", time) == 1) {
570 tok2msf(time, dummy);
571 sector_offs += msf2sec(dummy);
573 pregapOffset = -1; // mark to fill track start_offset
575 else if (!strcmp(token, "FILE")) {
576 t = sscanf(linebuf, " FILE \"%255[^\"]\"", tmpb);
578 sscanf(linebuf, " FILE %255s", tmpb);
581 ti[numtracks + 1].handle = fopen(tmpb, "rb");
582 if (ti[numtracks + 1].handle == NULL) {
584 tmp = strrchr(tmpb, '\\');
586 tmp = strrchr(tmpb, '/');
591 strncpy(incue_fname, tmp, incue_max_len);
592 ti[numtracks + 1].handle = fopen(filepath, "rb");
595 // update global offset if this is not first file in this .cue
596 if (numtracks + 1 > 1) {
598 sector_offs += file_len;
602 if (ti[numtracks + 1].handle == NULL) {
603 SysPrintf(_("\ncould not open: %s\n"), filepath);
606 fseek(ti[numtracks + 1].handle, 0, SEEK_END);
607 file_len = ftell(ti[numtracks + 1].handle) / 2352;
609 if (numtracks == 0 && strlen(isofile) >= 4 &&
610 strcmp(isofile + strlen(isofile) - 4, ".cue") == 0)
612 // user selected .cue as image file, use it's data track instead
614 cdHandle = fopen(filepath, "rb");
624 // this function tries to get the .ccd file of the given .img
625 // the necessary data is put into the ti (trackinformation)-array
626 static int parseccd(const char *isofile) {
627 char ccdname[MAXPATHLEN];
634 // copy name of the iso and change extension from .img to .ccd
635 strncpy(ccdname, isofile, sizeof(ccdname));
636 ccdname[MAXPATHLEN - 1] = '\0';
637 if (strlen(ccdname) >= 4) {
638 strcpy(ccdname + strlen(ccdname) - 4, ".ccd");
644 if ((fi = fopen(ccdname, "r")) == NULL) {
648 memset(&ti, 0, sizeof(ti));
650 while (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
651 if (!strncmp(linebuf, "[TRACK", 6)){
654 else if (!strncmp(linebuf, "MODE=", 5)) {
655 sscanf(linebuf, "MODE=%d", &t);
656 ti[numtracks].type = ((t == 0) ? CDDA : DATA);
658 else if (!strncmp(linebuf, "INDEX 1=", 8)) {
659 sscanf(linebuf, "INDEX 1=%d", &t);
660 sec2msf(t + 2 * 75, ti[numtracks].start);
661 ti[numtracks].start_offset = t * 2352;
663 // If we've already seen another track, this is its end
665 t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start);
666 sec2msf(t, ti[numtracks - 1].length);
673 // Fill out the last track's end based on size
674 if (numtracks >= 1) {
675 fseek(cdHandle, 0, SEEK_END);
676 t = ftell(cdHandle) / 2352 - msf2sec(ti[numtracks].start) + 2 * 75;
677 sec2msf(t, ti[numtracks].length);
683 // this function tries to get the .mds file of the given .mdf
684 // the necessary data is put into the ti (trackinformation)-array
685 static int parsemds(const char *isofile) {
686 char mdsname[MAXPATHLEN];
688 unsigned int offset, extra_offset, l, i;
693 // copy name of the iso and change extension from .mdf to .mds
694 strncpy(mdsname, isofile, sizeof(mdsname));
695 mdsname[MAXPATHLEN - 1] = '\0';
696 if (strlen(mdsname) >= 4) {
697 strcpy(mdsname + strlen(mdsname) - 4, ".mds");
703 if ((fi = fopen(mdsname, "rb")) == NULL) {
707 memset(&ti, 0, sizeof(ti));
709 // check if it's a valid mds file
710 fread(&i, 1, sizeof(unsigned int), fi);
712 if (i != 0x4944454D) {
713 // not an valid mds file
718 // get offset to session block
719 fseek(fi, 0x50, SEEK_SET);
720 fread(&offset, 1, sizeof(unsigned int), fi);
721 offset = SWAP32(offset);
723 // get total number of tracks
725 fseek(fi, offset, SEEK_SET);
726 fread(&s, 1, sizeof(unsigned short), fi);
730 // get offset to track blocks
731 fseek(fi, 4, SEEK_CUR);
732 fread(&offset, 1, sizeof(unsigned int), fi);
733 offset = SWAP32(offset);
737 fseek(fi, offset + 4, SEEK_SET);
738 if (fgetc(fi) < 0xA0) {
744 // check if the image contains mixed subchannel data
745 fseek(fi, offset + 1, SEEK_SET);
746 subChanMixed = subChanRaw = (fgetc(fi) ? TRUE : FALSE);
749 for (i = 1; i <= numtracks; i++) {
750 fseek(fi, offset, SEEK_SET);
752 // get the track type
753 ti[i].type = ((fgetc(fi) == 0xA9) ? CDDA : DATA);
754 fseek(fi, 8, SEEK_CUR);
756 // get the track starting point
757 ti[i].start[0] = fgetc(fi);
758 ti[i].start[1] = fgetc(fi);
759 ti[i].start[2] = fgetc(fi);
761 fread(&extra_offset, 1, sizeof(unsigned int), fi);
762 extra_offset = SWAP32(extra_offset);
764 // get track start offset (in .mdf)
765 fseek(fi, offset + 0x28, SEEK_SET);
766 fread(&l, 1, sizeof(unsigned int), fi);
768 ti[i].start_offset = l;
771 fseek(fi, extra_offset, SEEK_SET);
772 fread(&l, 1, sizeof(unsigned int), fi);
775 pregapOffset = msf2sec(ti[i].start);
777 // get the track length
778 fread(&l, 1, sizeof(unsigned int), fi);
780 sec2msf(l, ti[i].length);
789 static int handlepbp(const char *isofile) {
792 unsigned int dontcare[8];
793 unsigned int psar_offs;
806 unsigned int dontcare[6];
809 off_t psisoimg_offs, cdimg_base;
810 unsigned int t, cd_length;
811 unsigned int offsettab[8];
812 const char *ext = NULL;
815 if (strlen(isofile) >= 4)
816 ext = isofile + strlen(isofile) - 4;
817 if (ext == NULL || (strcmp(ext, ".pbp") != 0 && strcmp(ext, ".PBP") != 0))
820 fseeko(cdHandle, 0, SEEK_SET);
824 ret = fread(&pbp_hdr, 1, sizeof(pbp_hdr), cdHandle);
825 if (ret != sizeof(pbp_hdr)) {
826 SysPrintf("failed to read pbp\n");
830 ret = fseeko(cdHandle, pbp_hdr.psar_offs, SEEK_SET);
832 SysPrintf("failed to seek to %x\n", pbp_hdr.psar_offs);
836 psisoimg_offs = pbp_hdr.psar_offs;
837 fread(psar_sig, 1, sizeof(psar_sig), cdHandle);
839 if (strcmp(psar_sig, "PSTITLEIMG") == 0) {
841 ret = fseeko(cdHandle, pbp_hdr.psar_offs + 0x200, SEEK_SET);
843 SysPrintf("failed to seek to %x\n", pbp_hdr.psar_offs + 0x200);
847 if (fread(&offsettab, 1, sizeof(offsettab), cdHandle) != sizeof(offsettab)) {
848 SysPrintf("failed to read offsettab\n");
852 for (i = 0; i < sizeof(offsettab) / sizeof(offsettab[0]); i++) {
853 if (offsettab[i] == 0)
856 cdrIsoMultidiskCount = i;
857 if (cdrIsoMultidiskCount == 0) {
858 SysPrintf("multidisk eboot has 0 images?\n");
862 if (cdrIsoMultidiskSelect >= cdrIsoMultidiskCount)
863 cdrIsoMultidiskSelect = 0;
865 psisoimg_offs += offsettab[cdrIsoMultidiskSelect];
867 ret = fseeko(cdHandle, psisoimg_offs, SEEK_SET);
869 SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs);
873 fread(psar_sig, 1, sizeof(psar_sig), cdHandle);
877 if (strcmp(psar_sig, "PSISOIMG00") != 0) {
878 SysPrintf("bad psar_sig: %s\n", psar_sig);
883 ret = fseeko(cdHandle, psisoimg_offs + 0x800, SEEK_SET);
885 SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs + 0x800);
889 // first 3 entries are special
890 fseek(cdHandle, sizeof(toc_entry), SEEK_CUR);
891 fread(&toc_entry, 1, sizeof(toc_entry), cdHandle);
892 numtracks = btoi(toc_entry.index1[0]);
894 fread(&toc_entry, 1, sizeof(toc_entry), cdHandle);
895 cd_length = btoi(toc_entry.index1[0]) * 60 * 75 +
896 btoi(toc_entry.index1[1]) * 75 + btoi(toc_entry.index1[2]);
898 for (i = 1; i <= numtracks; i++) {
899 fread(&toc_entry, 1, sizeof(toc_entry), cdHandle);
901 ti[i].type = (toc_entry.type == 1) ? CDDA : DATA;
903 ti[i].start_offset = btoi(toc_entry.index0[0]) * 60 * 75 +
904 btoi(toc_entry.index0[1]) * 75 + btoi(toc_entry.index0[2]);
905 ti[i].start_offset *= 2352;
906 ti[i].start[0] = btoi(toc_entry.index1[0]);
907 ti[i].start[1] = btoi(toc_entry.index1[1]);
908 ti[i].start[2] = btoi(toc_entry.index1[2]);
911 t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start);
912 sec2msf(t, ti[i - 1].length);
915 t = cd_length - ti[numtracks].start_offset / 2352;
916 sec2msf(t, ti[numtracks].length);
919 ret = fseeko(cdHandle, psisoimg_offs + 0x4000, SEEK_SET);
921 SysPrintf("failed to seek to ISO index\n");
925 compr_img = calloc(1, sizeof(*compr_img));
926 if (compr_img == NULL)
929 compr_img->block_shift = 4;
930 compr_img->current_block = (unsigned int)-1;
932 compr_img->index_len = (0x100000 - 0x4000) / sizeof(index_entry);
933 compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0]));
934 if (compr_img->index_table == NULL)
937 cdimg_base = psisoimg_offs + 0x100000;
938 for (i = 0; i < compr_img->index_len; i++) {
939 ret = fread(&index_entry, 1, sizeof(index_entry), cdHandle);
940 if (ret != sizeof(index_entry)) {
941 SysPrintf("failed to read index_entry #%d\n", i);
945 if (index_entry.size == 0)
948 compr_img->index_table[i] = cdimg_base + index_entry.offset;
950 compr_img->index_table[i] = cdimg_base + index_entry.offset + index_entry.size;
955 free(compr_img->index_table);
956 compr_img->index_table = NULL;
958 if (compr_img != NULL) {
965 static int handlecbin(const char *isofile) {
969 unsigned int header_size;
970 unsigned long long total_bytes;
971 unsigned int block_size;
972 unsigned char ver; // 1
974 unsigned char rsv_06[2];
976 const char *ext = NULL;
977 unsigned int *index_table = NULL;
978 unsigned int index = 0, plain;
981 if (strlen(isofile) >= 5)
982 ext = isofile + strlen(isofile) - 5;
983 if (ext == NULL || (strcasecmp(ext + 1, ".cbn") != 0 && strcasecmp(ext, ".cbin") != 0))
986 fseek(cdHandle, 0, SEEK_SET);
988 ret = fread(&ciso_hdr, 1, sizeof(ciso_hdr), cdHandle);
989 if (ret != sizeof(ciso_hdr)) {
990 SysPrintf("failed to read ciso header\n");
994 if (strncmp(ciso_hdr.magic, "CISO", 4) != 0 || ciso_hdr.total_bytes <= 0 || ciso_hdr.block_size <= 0) {
995 SysPrintf("bad ciso header\n");
998 if (ciso_hdr.header_size != 0 && ciso_hdr.header_size != sizeof(ciso_hdr)) {
999 ret = fseeko(cdHandle, ciso_hdr.header_size, SEEK_SET);
1001 SysPrintf("failed to seek to %x\n", ciso_hdr.header_size);
1006 compr_img = calloc(1, sizeof(*compr_img));
1007 if (compr_img == NULL)
1010 compr_img->block_shift = 0;
1011 compr_img->current_block = (unsigned int)-1;
1013 compr_img->index_len = ciso_hdr.total_bytes / ciso_hdr.block_size;
1014 index_table = malloc((compr_img->index_len + 1) * sizeof(index_table[0]));
1015 if (index_table == NULL)
1018 ret = fread(index_table, sizeof(index_table[0]), compr_img->index_len, cdHandle);
1019 if (ret != compr_img->index_len) {
1020 SysPrintf("failed to read index table\n");
1024 compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0]));
1025 if (compr_img->index_table == NULL)
1028 for (i = 0; i < compr_img->index_len + 1; i++) {
1029 index = index_table[i];
1030 plain = index & 0x80000000;
1031 index &= 0x7fffffff;
1032 compr_img->index_table[i] = (off_t)index << ciso_hdr.align;
1034 compr_img->index_table[i] |= OFF_T_MSB;
1042 if (compr_img != NULL) {
1050 static int handlechd(const char *isofile) {
1051 int frame_offset = 0;
1052 int file_offset = 0;
1054 chd_img = (CHD_IMG *)calloc(1, sizeof(*chd_img));
1055 if (chd_img == NULL)
1058 if(chd_open(isofile, CHD_OPEN_READ, NULL, &chd_img->chd) != CHDERR_NONE)
1061 chd_img->header = chd_get_header(chd_img->chd);
1063 chd_img->buffer = (unsigned char (*)[CD_FRAMESIZE_RAW + SUB_FRAMESIZE])malloc(chd_img->header->hunkbytes);
1064 if (chd_img->buffer == NULL)
1067 chd_img->sectors_per_hunk = chd_img->header->hunkbytes / (CD_FRAMESIZE_RAW + SUB_FRAMESIZE);
1068 chd_img->current_hunk = (unsigned int)-1;
1070 cddaBigEndian = TRUE;
1073 memset(ti, 0, sizeof(ti));
1088 uint32_t meta_size = 0;
1090 if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA2_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE)
1091 sscanf(meta, CDROM_TRACK_METADATA2_FORMAT, &md.track, md.type, md.subtype, &md.frames, &md.pregap, md.pgtype, md.pgsub, &md.postgap);
1092 else if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE)
1093 sscanf(meta, CDROM_TRACK_METADATA_FORMAT, &md.track, md.type, md.subtype, &md.frames);
1100 sec2msf(msf2sec(ti[md.track-1].length) + md.pregap, ti[md.track-1].length);
1102 ti[md.track].type = !strncmp(md.type, "AUDIO", 5) ? CDDA : DATA;
1104 sec2msf(frame_offset + md.pregap, ti[md.track].start);
1105 sec2msf(md.frames, ti[md.track].length);
1107 ti[md.track].start_offset = file_offset;
1109 frame_offset += md.pregap + md.frames + md.postgap;
1110 file_offset += md.frames + md.postgap;
1118 if (chd_img != NULL) {
1119 free(chd_img->buffer);
1127 // this function tries to get the .sub file of the given .img
1128 static int opensubfile(const char *isoname) {
1129 char subname[MAXPATHLEN];
1131 // copy name of the iso and change extension from .img to .sub
1132 strncpy(subname, isoname, sizeof(subname));
1133 subname[MAXPATHLEN - 1] = '\0';
1134 if (strlen(subname) >= 4) {
1135 strcpy(subname + strlen(subname) - 4, ".sub");
1141 subHandle = fopen(subname, "rb");
1142 if (subHandle == NULL) {
1149 static int opensbifile(const char *isoname) {
1150 char sbiname[MAXPATHLEN];
1153 strncpy(sbiname, isoname, sizeof(sbiname));
1154 sbiname[MAXPATHLEN - 1] = '\0';
1155 if (strlen(sbiname) >= 4) {
1156 strcpy(sbiname + strlen(sbiname) - 4, ".sbi");
1162 fseek(cdHandle, 0, SEEK_END);
1163 s = ftell(cdHandle) / 2352;
1165 return LoadSBI(sbiname, s);
1168 static int cdread_normal(FILE *f, unsigned int base, void *dest, int sector)
1170 fseek(f, base + sector * CD_FRAMESIZE_RAW, SEEK_SET);
1171 return fread(dest, 1, CD_FRAMESIZE_RAW, f);
1174 static int cdread_sub_mixed(FILE *f, unsigned int base, void *dest, int sector)
1178 fseek(f, base + sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE), SEEK_SET);
1179 ret = fread(dest, 1, CD_FRAMESIZE_RAW, f);
1180 fread(subbuffer, 1, SUB_FRAMESIZE, f);
1182 if (subChanRaw) DecodeRawSubData();
1187 static int uncompress2_pcsx(void *out, unsigned long *out_size, void *in, unsigned long in_size)
1192 if (z.zalloc == NULL) {
1193 // XXX: one-time leak here..
1199 ret = inflateInit2(&z, -15);
1202 ret = inflateReset(&z);
1207 z.avail_in = in_size;
1209 z.avail_out = *out_size;
1211 ret = inflate(&z, Z_NO_FLUSH);
1214 *out_size -= z.avail_out;
1215 return ret == 1 ? 0 : ret;
1218 static int cdread_compressed(FILE *f, unsigned int base, void *dest, int sector)
1220 unsigned long cdbuffer_size, cdbuffer_size_expect;
1227 sector += base / 2352;
1229 block = sector >> compr_img->block_shift;
1230 compr_img->sector_in_blk = sector & ((1 << compr_img->block_shift) - 1);
1232 if (block == compr_img->current_block) {
1233 //printf("hit sect %d\n", sector);
1237 if (sector >= compr_img->index_len * 16) {
1238 SysPrintf("sector %d is past img end\n", sector);
1242 start_byte = compr_img->index_table[block] & ~OFF_T_MSB;
1243 if (fseeko(cdHandle, start_byte, SEEK_SET) != 0) {
1244 SysPrintf("seek error for block %d at %llx: ",
1245 block, (long long)start_byte);
1250 is_compressed = !(compr_img->index_table[block] & OFF_T_MSB);
1251 size = (compr_img->index_table[block + 1] & ~OFF_T_MSB) - start_byte;
1252 if (size > sizeof(compr_img->buff_compressed)) {
1253 SysPrintf("block %d is too large: %u\n", block, size);
1257 if (fread(is_compressed ? compr_img->buff_compressed : compr_img->buff_raw[0],
1258 1, size, cdHandle) != size) {
1259 SysPrintf("read error for block %d at %x: ", block, start_byte);
1264 if (is_compressed) {
1265 cdbuffer_size_expect = sizeof(compr_img->buff_raw[0]) << compr_img->block_shift;
1266 cdbuffer_size = cdbuffer_size_expect;
1267 ret = uncompress2_pcsx(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size);
1269 SysPrintf("uncompress failed with %d for block %d, sector %d\n",
1270 ret, block, sector);
1273 if (cdbuffer_size != cdbuffer_size_expect)
1274 SysPrintf("cdbuffer_size: %lu != %lu, sector %d\n", cdbuffer_size,
1275 cdbuffer_size_expect, sector);
1279 compr_img->current_block = block;
1282 if (dest != cdbuffer) // copy avoid HACK
1283 memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk],
1285 return CD_FRAMESIZE_RAW;
1289 static int cdread_chd(FILE *f, unsigned int base, void *dest, int sector)
1296 hunk = sector / chd_img->sectors_per_hunk;
1297 chd_img->sector_in_hunk = sector % chd_img->sectors_per_hunk;
1299 if (hunk != chd_img->current_hunk)
1301 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;
1312 static int cdread_2048(FILE *f, unsigned int base, void *dest, int sector)
1316 fseek(f, base + sector * 2048, SEEK_SET);
1317 ret = fread((char *)dest + 12 * 2, 1, 2048, f);
1319 // not really necessary, fake mode 2 header
1320 memset(cdbuffer, 0, 12 * 2);
1321 sec2msf(sector + 2 * 75, (char *)&cdbuffer[12]);
1322 cdbuffer[12 + 3] = 1;
1327 static unsigned char * CALLBACK ISOgetBuffer_compr(void) {
1328 return compr_img->buff_raw[compr_img->sector_in_blk] + 12;
1332 static unsigned char *ISOgetBuffer_chd(void) {
1333 return chd_img->buffer[chd_img->sector_in_hunk] + 12;
1337 static unsigned char * CALLBACK ISOgetBuffer(void) {
1338 return cdbuffer + 12;
1341 static void PrintTracks(void) {
1344 for (i = 1; i <= numtracks; i++) {
1345 SysPrintf(_("Track %.2d (%s) - Start %.2d:%.2d:%.2d, Length %.2d:%.2d:%.2d\n"),
1346 i, (ti[i].type == DATA ? "DATA" : "AUDIO"),
1347 ti[i].start[0], ti[i].start[1], ti[i].start[2],
1348 ti[i].length[0], ti[i].length[1], ti[i].length[2]);
1352 // This function is invoked by the front-end when opening an ISO
1353 // file for playback
1354 static long CALLBACK ISOopen(void) {
1355 boolean isMode1ISO = FALSE;
1356 char alt_bin_filename[MAXPATHLEN];
1357 const char *bin_filename;
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 SysPrintf(_("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 SysPrintf("[+toc]");
1385 else if (parseccd(GetIsoFile()) == 0) {
1386 SysPrintf("[+ccd]");
1388 else if (parsemds(GetIsoFile()) == 0) {
1389 SysPrintf("[+mds]");
1391 else if (parsecue(GetIsoFile()) == 0) {
1392 SysPrintf("[+cue]");
1394 if (handlepbp(GetIsoFile()) == 0) {
1396 CDR_getBuffer = ISOgetBuffer_compr;
1397 cdimg_read_func = cdread_compressed;
1399 else if (handlecbin(GetIsoFile()) == 0) {
1400 SysPrintf("[cbin]");
1401 CDR_getBuffer = ISOgetBuffer_compr;
1402 cdimg_read_func = cdread_compressed;
1406 else if (handlechd(GetIsoFile()) == 0) {
1408 CDR_getBuffer = ISOgetBuffer_chd;
1409 cdimg_read_func = cdread_chd;
1413 if (!subChanMixed && opensubfile(GetIsoFile()) == 0) {
1414 SysPrintf("[+sub]");
1416 if (opensbifile(GetIsoFile()) == 0) {
1417 SysPrintf("[+sbi]");
1420 fseeko(cdHandle, 0, SEEK_END);
1422 // maybe user selected metadata file instead of main .bin ..
1423 bin_filename = GetIsoFile();
1424 if (ftello(cdHandle) < 2352 * 0x10) {
1425 static const char *exts[] = { ".bin", ".BIN", ".img", ".IMG" };
1430 strncpy(alt_bin_filename, bin_filename, sizeof(alt_bin_filename));
1431 alt_bin_filename[MAXPATHLEN - 1] = '\0';
1432 if (strlen(alt_bin_filename) >= 4) {
1433 p = alt_bin_filename + strlen(alt_bin_filename) - 4;
1434 for (i = 0; i < sizeof(exts) / sizeof(exts[0]); i++) {
1436 tmpf = fopen(alt_bin_filename, "rb");
1442 bin_filename = alt_bin_filename;
1445 fseeko(cdHandle, 0, SEEK_END);
1449 // guess whether it is mode1/2048
1450 if (ftello(cdHandle) % 2048 == 0) {
1451 unsigned int modeTest = 0;
1452 fseek(cdHandle, 0, SEEK_SET);
1453 fread(&modeTest, 4, 1, cdHandle);
1454 if (SWAP32(modeTest) != 0xffffff00) {
1455 SysPrintf("[2048]");
1459 fseek(cdHandle, 0, SEEK_SET);
1466 cdimg_read_func = cdread_sub_mixed;
1467 else if (isMode1ISO)
1468 cdimg_read_func = cdread_2048;
1470 // make sure we have another handle open for cdda
1471 if (numtracks > 1 && ti[1].handle == NULL) {
1472 ti[1].handle = fopen(bin_filename, "rb");
1474 cdda_cur_sector = 0;
1475 cdda_file_offset = 0;
1480 static long CALLBACK ISOclose(void) {
1483 if (cdHandle != NULL) {
1487 if (subHandle != NULL) {
1494 if (compr_img != NULL) {
1495 free(compr_img->index_table);
1501 if (chd_img != NULL) {
1502 chd_close(chd_img->chd);
1503 free(chd_img->buffer);
1509 for (i = 1; i <= numtracks; i++) {
1510 if (ti[i].handle != NULL) {
1511 fclose(ti[i].handle);
1512 ti[i].handle = NULL;
1519 memset(cdbuffer, 0, sizeof(cdbuffer));
1520 CDR_getBuffer = ISOgetBuffer;
1525 static long CALLBACK ISOinit(void) {
1526 assert(cdHandle == NULL);
1527 assert(subHandle == NULL);
1529 return 0; // do nothing
1532 static long CALLBACK ISOshutdown(void) {
1537 // return Starting and Ending Track
1539 // byte 0 - start track
1540 // byte 1 - end track
1541 static long CALLBACK ISOgetTN(unsigned char *buffer) {
1544 if (numtracks > 0) {
1545 buffer[1] = numtracks;
1554 // return Track Time
1559 static long CALLBACK ISOgetTD(unsigned char track, unsigned char *buffer) {
1562 unsigned char time[3];
1563 sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length);
1564 sec2msf(sect, (char *)time);
1565 buffer[2] = time[0];
1566 buffer[1] = time[1];
1567 buffer[0] = time[2];
1569 else if (numtracks > 0 && track <= numtracks) {
1570 buffer[2] = ti[track].start[0];
1571 buffer[1] = ti[track].start[1];
1572 buffer[0] = ti[track].start[2];
1583 // decode 'raw' subchannel data ripped by cdrdao
1584 static void DecodeRawSubData(void) {
1585 unsigned char subQData[12];
1588 memset(subQData, 0, sizeof(subQData));
1590 for (i = 0; i < 8 * 12; i++) {
1591 if (subbuffer[i] & (1 << 6)) { // only subchannel Q is needed
1592 subQData[i >> 3] |= (1 << (7 - (i & 7)));
1596 memcpy(&subbuffer[12], subQData, 12);
1600 // time: byte 0 - minute; byte 1 - second; byte 2 - frame
1602 static long CALLBACK ISOreadTrack(unsigned char *time) {
1603 int sector = MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2]));
1606 if (cdHandle == NULL) {
1611 subChanMissing = FALSE;
1612 if (sector >= pregapOffset) {
1614 if (sector < pregapOffset)
1615 subChanMissing = TRUE;
1619 ret = cdimg_read_func(cdHandle, 0, cdbuffer, sector);
1623 if (subHandle != NULL) {
1624 fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET);
1625 fread(subbuffer, 1, SUB_FRAMESIZE, subHandle);
1627 if (subChanRaw) DecodeRawSubData();
1634 // sector: byte 0 - minute; byte 1 - second; byte 2 - frame
1635 // does NOT uses bcd format
1636 static long CALLBACK ISOplay(unsigned char *time) {
1643 cdda_cur_sector = msf2sec((char *)time);
1644 for (i = numtracks; i > 1; i--) {
1645 cdda_first_sector = msf2sec(ti[i].start);
1646 if (cdda_first_sector <= cdda_cur_sector + 2 * 75)
1649 cdda_file_offset = ti[i].start_offset;
1651 // find the file that contains this track
1653 if (ti[i].handle != NULL)
1656 cddaHandle = ti[i].handle;
1658 if (SPU_playCDDAchannel != NULL)
1665 static long CALLBACK ISOstop(void) {
1670 // gets subchannel data
1671 static unsigned char* CALLBACK ISOgetBufferSub(void) {
1672 if ((subHandle != NULL || subChanMixed) && !subChanMissing) {
1679 static long CALLBACK ISOgetStatus(struct CdrStat *stat) {
1682 CDR__getStatus(stat);
1686 stat->Status |= 0x80;
1689 // BIOS - boot ID (CD type)
1690 stat->Type = ti[1].type;
1693 // relative -> absolute time
1695 sec2msf(sect, (char *)stat->Time);
1700 // read CDDA sector into buffer
1701 long CALLBACK ISOreadCDDA(unsigned char m, unsigned char s, unsigned char f, unsigned char *buffer) {
1702 unsigned char msf[3] = {m, s, f};
1703 unsigned int file, track, track_start = 0;
1706 cddaCurPos = msf2sec((char *)msf);
1708 // find current track index
1709 for (track = numtracks; ; track--) {
1710 track_start = msf2sec(ti[track].start);
1711 if (track_start <= cddaCurPos)
1717 // data tracks play silent
1718 if (ti[track].type != CDDA) {
1719 memset(buffer, 0, CD_FRAMESIZE_RAW);
1725 // find the file that contains this track
1726 for (file = track; file > 1; file--)
1727 if (ti[file].handle != NULL)
1731 ret = cdimg_read_func(ti[file].handle, ti[track].start_offset,
1732 buffer, cddaCurPos - track_start);
1733 if (ret != CD_FRAMESIZE_RAW) {
1734 memset(buffer, 0, CD_FRAMESIZE_RAW);
1738 if (cddaBigEndian) {
1742 for (i = 0; i < CD_FRAMESIZE_RAW / 2; i++) {
1743 tmp = buffer[i * 2];
1744 buffer[i * 2] = buffer[i * 2 + 1];
1745 buffer[i * 2 + 1] = tmp;
1752 void cdrIsoInit(void) {
1754 CDR_shutdown = ISOshutdown;
1756 CDR_close = ISOclose;
1757 CDR_getTN = ISOgetTN;
1758 CDR_getTD = ISOgetTD;
1759 CDR_readTrack = ISOreadTrack;
1760 CDR_getBuffer = ISOgetBuffer;
1763 CDR_getBufferSub = ISOgetBufferSub;
1764 CDR_getStatus = ISOgetStatus;
1765 CDR_readCDDA = ISOreadCDDA;
1767 CDR_getDriveLetter = CDR__getDriveLetter;
1768 CDR_configure = CDR__configure;
1769 CDR_test = CDR__test;
1770 CDR_about = CDR__about;
1771 CDR_setfilename = CDR__setfilename;
1776 int cdrIsoActive(void) {
1777 return (cdHandle != NULL);