fix x86 build
[pcsx_rearmed.git] / libpcsxcore / cdriso.c
index c9d94f2..e6247bb 100644 (file)
@@ -1,6 +1,7 @@
 /***************************************************************************
  *   Copyright (C) 2007 PCSX-df Team                                       *
  *   Copyright (C) 2009 Wei Mingzhi                                        *
+ *   Copyright (C) 2012 notaz                                              *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
@@ -15,7 +16,7 @@
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the                         *
  *   Free Software Foundation, Inc.,                                       *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  ***************************************************************************/
 
 #include "psxcommon.h"
 #include "ppf.h"
 
 #ifdef _WIN32
+#define WIN32_LEAN_AND_MEAN
 #include <process.h>
 #include <windows.h>
+#define strcasecmp _stricmp
+#define usleep(x) Sleep((x) / 1000)
 #else
 #include <pthread.h>
 #include <sys/time.h>
+#include <unistd.h>
 #endif
+#include <errno.h>
 #include <zlib.h>
 
+#ifdef HAVE_CHD
+#include "chd.h"
+#endif
+
+#define OFF_T_MSB ((off_t)1 << (sizeof(off_t) * 8 - 1))
+
 unsigned int cdrIsoMultidiskCount;
 unsigned int cdrIsoMultidiskSelect;
 
@@ -44,44 +56,46 @@ static boolean subChanMixed = FALSE;
 static boolean subChanRaw = FALSE;
 static boolean subChanMissing = FALSE;
 
-static unsigned char cdbuffer[DATA_SIZE];
-static unsigned char subbuffer[SUB_FRAMESIZE];
+static boolean multifile = FALSE;
 
-static unsigned char sndbuffer[CD_FRAMESIZE_RAW * 10];
-
-#define CDDA_FRAMETIME                 (1000 * (sizeof(sndbuffer) / CD_FRAMESIZE_RAW) / 75)
+static unsigned char cdbuffer[CD_FRAMESIZE_RAW];
+static unsigned char subbuffer[SUB_FRAMESIZE];
 
-#ifdef _WIN32
-static HANDLE threadid;
-#else
-static pthread_t threadid;
-#endif
-static unsigned int initial_offset = 0;
 static boolean playing = FALSE;
 static boolean cddaBigEndian = FALSE;
-// offsets of cddaHandle file
-static unsigned int cdda_cur_sector;
-static unsigned int cdda_first_sector;
-// toc_sector - file_sector
-static unsigned int cdda_toc_delta;
 /* Frame offset into CD image where pregap data would be found if it was there.
  * If a game seeks there we must *not* return subchannel data since it's
  * not in the CD image, so that cdrom code can fake subchannel data instead.
  * XXX: there could be multiple pregaps but PSX dumps only have one? */
 static unsigned int pregapOffset;
 
+static unsigned int cddaCurPos;
+
 // compressed image stuff
 static struct {
        unsigned char buff_raw[16][CD_FRAMESIZE_RAW];
        unsigned char buff_compressed[CD_FRAMESIZE_RAW * 16 + 100];
-       unsigned int *index_table;
+       off_t *index_table;
        unsigned int index_len;
        unsigned int block_shift;
        unsigned int current_block;
        unsigned int sector_in_blk;
 } *compr_img;
 
-int (*cdimg_read_func)(FILE *f, void *dest, int sector, int offset);
+#ifdef HAVE_CHD
+typedef struct {
+       unsigned char (*buffer)[CD_FRAMESIZE_RAW + SUB_FRAMESIZE];
+       chd_file* chd;
+       const chd_header* header;
+       unsigned int sectors_per_hunk;
+       unsigned int current_hunk;
+       unsigned int sector_in_hunk;
+} CHD_IMG;
+
+static CHD_IMG *chd_img;
+#endif
+
+int (*cdimg_read_func)(FILE *f, unsigned int base, void *dest, int sector);
 
 char* CALLBACK CDR__getDriveLetter(void);
 long CALLBACK CDR__configure(void);
@@ -92,14 +106,12 @@ long CALLBACK CDR__getStatus(struct CdrStat *stat);
 
 static void DecodeRawSubData(void);
 
-extern void *hCDRDriver;
-
 struct trackinfo {
-       enum {DATA, CDDA} type;
+       enum {DATA=1, CDDA} type;
        char start[3];          // MSF-format
        char length[3];         // MSF-format
        FILE *handle;           // for multi-track images CDDA
-       int start_offset;       // sector offset from start of above file
+       unsigned int start_offset; // byte offset from start of above file
 };
 
 #define MAXTRACKS 100 /* How many tracks can a CD hold? */
@@ -149,132 +161,9 @@ static void tok2msf(char *time, char *msf) {
        }
 }
 
-#ifndef _WIN32
-static long GetTickCount(void) {
-       static time_t           initial_time = 0;
-       struct timeval          now;
-
-       gettimeofday(&now, NULL);
-
-       if (initial_time == 0) {
-               initial_time = now.tv_sec;
-       }
-
-       return (now.tv_sec - initial_time) * 1000L + now.tv_usec / 1000L;
-}
-#endif
-
-// this thread plays audio data
-#ifdef _WIN32
-static void playthread(void *param)
-#else
-static void *playthread(void *param)
-#endif
-{
-       long osleep, d, t, i, s;
-       unsigned char   tmp;
-       int ret = 0;
-
-       t = GetTickCount();
-
-       while (playing) {
-               s = 0;
-               for (i = 0; i < sizeof(sndbuffer) / CD_FRAMESIZE_RAW; i++) {
-                       d = cdimg_read_func(cddaHandle, sndbuffer + s, cdda_cur_sector, 0);
-                       if (d < CD_FRAMESIZE_RAW)
-                               break;
-
-                       if (cdda_cur_sector < cdda_first_sector)
-                               memset(sndbuffer + s, 0, CD_FRAMESIZE_RAW);
-
-                       s += d;
-                       cdda_cur_sector++;
-               }
-
-               if (s == 0) {
-                       playing = FALSE;
-                       initial_offset = 0;
-                       break;
-               }
-
-               if (!cdr.Muted && playing) {
-                       if (cddaBigEndian) {
-                               for (i = 0; i < s / 2; i++) {
-                                       tmp = sndbuffer[i * 2];
-                                       sndbuffer[i * 2] = sndbuffer[i * 2 + 1];
-                                       sndbuffer[i * 2 + 1] = tmp;
-                               }
-                       }
-
-                       do {
-                               ret = SPU_playCDDAchannel((short *)sndbuffer, s);
-                               if (ret == 0x7761)
-                                       usleep(6 * 1000);
-                       } while (ret == 0x7761 && playing); // rearmed_wait
-               }
-
-               if (ret != 0x676f) { // !rearmed_go
-                       // do approx sleep
-                       long now;
-
-                       // HACK: stop feeding data while emu is paused
-                       extern int stop;
-                       while (stop && playing)
-                               usleep(10000);
-
-                       now = GetTickCount();
-                       osleep = t - now;
-                       if (osleep <= 0) {
-                               osleep = 1;
-                               t = now;
-                       }
-                       else if (osleep > CDDA_FRAMETIME) {
-                               osleep = CDDA_FRAMETIME;
-                               t = now;
-                       }
-
-                       usleep(osleep * 1000);
-                       t += CDDA_FRAMETIME;
-               }
-
-       }
-
-#ifdef _WIN32
-       _endthread();
-#else
-       pthread_exit(0);
-       return NULL;
-#endif
-}
-
 // stop the CDDA playback
 static void stopCDDA() {
-       if (!playing) {
-               return;
-       }
-
        playing = FALSE;
-#ifdef _WIN32
-       WaitForSingleObject(threadid, INFINITE);
-#else
-       pthread_join(threadid, NULL);
-#endif
-}
-
-// start the CDDA playback
-static void startCDDA(unsigned int sector) {
-       if (playing) {
-               stopCDDA();
-       }
-
-       cdda_cur_sector = sector;
-       playing = TRUE;
-
-#ifdef _WIN32
-       threadid = (HANDLE)_beginthread(playthread, 0, NULL);
-#else
-       pthread_create(&threadid, NULL, playthread, NULL);
-#endif
 }
 
 // this function tries to get the .toc file of the given .bin
@@ -282,10 +171,11 @@ static void startCDDA(unsigned int sector) {
 static int parsetoc(const char *isofile) {
        char                    tocname[MAXPATHLEN];
        FILE                    *fi;
-       char                    linebuf[256], dummy[256], name[256];
+       char                    linebuf[256], tmp[256], name[256];
        char                    *token;
        char                    time[20], time2[20];
-       unsigned int    t, sector_offs;
+       unsigned int    t, sector_offs, sector_size;
+       unsigned int    current_zero_gap = 0;
 
        numtracks = 0;
 
@@ -316,22 +206,34 @@ static int parsetoc(const char *isofile) {
                                return -1;
                        }
                }
+               // check if it's really a TOC named as a .cue
+               fgets(linebuf, sizeof(linebuf), fi);
+               token = strtok(linebuf, " ");
+               if (token && strncmp(token, "CD", 2) != 0 && strcmp(token, "CATALOG") != 0) {
+                       fclose(fi);
+                       return -1;
+               }
+               fseek(fi, 0, SEEK_SET);
        }
 
        memset(&ti, 0, sizeof(ti));
        cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio
 
+       sector_size = CD_FRAMESIZE_RAW;
        sector_offs = 2 * 75;
 
        // parse the .toc file
        while (fgets(linebuf, sizeof(linebuf), fi) != NULL) {
                // search for tracks
-               strncpy(dummy, linebuf, sizeof(linebuf));
-               token = strtok(dummy, " ");
+               strncpy(tmp, linebuf, sizeof(linebuf));
+               token = strtok(tmp, " ");
 
                if (token == NULL) continue;
 
                if (!strcmp(token, "TRACK")) {
+                       sector_offs += current_zero_gap;
+                       current_zero_gap = 0;
+
                        // get type of track
                        token = strtok(NULL, " ");
                        numtracks++;
@@ -342,9 +244,11 @@ static int parsetoc(const char *isofile) {
 
                                // check if this image contains mixed subchannel data
                                token = strtok(NULL, " ");
-                               if (token != NULL && !strncmp(token, "RW_RAW", 6)) {
+                               if (token != NULL && !strncmp(token, "RW", 2)) {
+                                       sector_size = CD_FRAMESIZE_RAW + SUB_FRAMESIZE;
                                        subChanMixed = TRUE;
-                                       subChanRaw = TRUE;
+                                       if (!strncmp(token, "RW_RAW", 6))
+                                               subChanRaw = TRUE;
                                }
                        }
                        else if (!strncmp(token, "AUDIO", 5)) {
@@ -354,9 +258,8 @@ static int parsetoc(const char *isofile) {
                else if (!strcmp(token, "DATAFILE")) {
                        if (ti[numtracks].type == CDDA) {
                                sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2);
-                               t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0);
                                ti[numtracks].start_offset = t;
-                               t += sector_offs;
+                               t = t / sector_size + sector_offs;
                                sec2msf(t, (char *)&ti[numtracks].start);
                                tok2msf((char *)&time2, (char *)&ti[numtracks].length);
                        }
@@ -368,21 +271,39 @@ static int parsetoc(const char *isofile) {
                else if (!strcmp(token, "FILE")) {
                        sscanf(linebuf, "FILE \"%[^\"]\" #%d %8s %8s", name, &t, time, time2);
                        tok2msf((char *)&time, (char *)&ti[numtracks].start);
-                       t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0);
+                       t += msf2sec(ti[numtracks].start) * sector_size;
                        ti[numtracks].start_offset = t;
-                       t += msf2sec(ti[numtracks].start) + sector_offs;
+                       t = t / sector_size + sector_offs;
                        sec2msf(t, (char *)&ti[numtracks].start);
                        tok2msf((char *)&time2, (char *)&ti[numtracks].length);
                }
-               else if (!strcmp(token, "ZERO")) {
-                       sscanf(linebuf, "ZERO AUDIO RW_RAW %8s", time);
-                       tok2msf((char *)&time, dummy);
-                       sector_offs += msf2sec(dummy);
+               else if (!strcmp(token, "ZERO") || !strcmp(token, "SILENCE")) {
+                       // skip unneeded optional fields
+                       while (token != NULL) {
+                               token = strtok(NULL, " ");
+                               if (strchr(token, ':') != NULL)
+                                       break;
+                       }
+                       if (token != NULL) {
+                               tok2msf(token, tmp);
+                               current_zero_gap = msf2sec(tmp);
+                       }
                        if (numtracks > 1) {
                                t = ti[numtracks - 1].start_offset;
+                               t /= sector_size;
                                pregapOffset = t + msf2sec(ti[numtracks - 1].length);
                        }
                }
+               else if (!strcmp(token, "START")) {
+                       token = strtok(NULL, " ");
+                       if (token != NULL && strchr(token, ':')) {
+                               tok2msf(token, tmp);
+                               t = msf2sec(tmp);
+                               ti[numtracks].start_offset += (t - current_zero_gap) * sector_size;
+                               t = msf2sec(ti[numtracks].start) + t;
+                               sec2msf(t, (char *)&ti[numtracks].start);
+                       }
+               }
        }
 
        fclose(fi);
@@ -402,7 +323,8 @@ static int parsecue(const char *isofile) {
        char                    *tmp;
        char                    linebuf[256], tmpb[256], dummy[256];
        unsigned int    incue_max_len;
-       unsigned int    t, file_len, sector_offs;
+       unsigned int    t, file_len, mode, sector_offs;
+       unsigned int    sector_size = 2352;
 
        numtracks = 0;
 
@@ -435,10 +357,12 @@ static int parsecue(const char *isofile) {
 
        // build a path for files referenced in .cue
        strncpy(filepath, cuename, sizeof(filepath));
-       tmp = strrchr(filepath, '/') + 1;
-       if (tmp == NULL)
-               tmp = strrchr(filepath, '\\') + 1;
+       tmp = strrchr(filepath, '/');
        if (tmp == NULL)
+               tmp = strrchr(filepath, '\\');
+       if (tmp != NULL)
+               tmp++;
+       else
                tmp = filepath;
        *tmp = 0;
        filepath[sizeof(filepath) - 1] = 0;
@@ -461,24 +385,32 @@ static int parsecue(const char *isofile) {
                if (!strcmp(token, "TRACK")) {
                        numtracks++;
 
+                       sector_size = 0;
                        if (strstr(linebuf, "AUDIO") != NULL) {
                                ti[numtracks].type = CDDA;
+                               sector_size = 2352;
                        }
-                       else if (strstr(linebuf, "MODE1/2352") != NULL || strstr(linebuf, "MODE2/2352") != NULL) {
+                       else if (sscanf(linebuf, " TRACK %u MODE%u/%u", &t, &mode, &sector_size) == 3)
                                ti[numtracks].type = DATA;
+                       else {
+                               SysPrintf(".cue: failed to parse TRACK\n");
+                               ti[numtracks].type = numtracks == 1 ? DATA : CDDA;
                        }
+                       if (sector_size == 0)
+                               sector_size = 2352;
                }
                else if (!strcmp(token, "INDEX")) {
-                       sscanf(linebuf, " INDEX %02d %8s", &t, time);
+                       if (sscanf(linebuf, " INDEX %02d %8s", &t, time) != 2)
+                               SysPrintf(".cue: failed to parse INDEX\n");
                        tok2msf(time, (char *)&ti[numtracks].start);
 
                        t = msf2sec(ti[numtracks].start);
-                       ti[numtracks].start_offset = t;
+                       ti[numtracks].start_offset = t * sector_size;
                        t += sector_offs;
                        sec2msf(t, ti[numtracks].start);
 
                        // default track length to file length
-                       t = file_len - ti[numtracks].start_offset;
+                       t = file_len - ti[numtracks].start_offset / sector_size;
                        sec2msf(t, ti[numtracks].length);
 
                        if (numtracks > 1 && ti[numtracks].handle == NULL) {
@@ -488,7 +420,7 @@ static int parsecue(const char *isofile) {
                                sec2msf(t, ti[numtracks - 1].length);
                        }
                        if (numtracks > 1 && pregapOffset == -1)
-                               pregapOffset = ti[numtracks].start_offset;
+                               pregapOffset = ti[numtracks].start_offset / sector_size;
                }
                else if (!strcmp(token, "PREGAP")) {
                        if (sscanf(linebuf, " PREGAP %8s", time) == 1) {
@@ -498,7 +430,9 @@ static int parsecue(const char *isofile) {
                        pregapOffset = -1; // mark to fill track start_offset
                }
                else if (!strcmp(token, "FILE")) {
-                       sscanf(linebuf, " FILE \"%[^\"]\"", tmpb);
+                       t = sscanf(linebuf, " FILE \"%255[^\"]\"", tmpb);
+                       if (t != 1)
+                               sscanf(linebuf, " FILE %255s", tmpb);
 
                        // absolute path?
                        ti[numtracks + 1].handle = fopen(tmpb, "rb");
@@ -516,8 +450,10 @@ static int parsecue(const char *isofile) {
                        }
 
                        // update global offset if this is not first file in this .cue
-                       if (numtracks + 1 > 1)
+                       if (numtracks + 1 > 1) {
+                               multifile = 1;
                                sector_offs += file_len;
+                       }
 
                        file_len = 0;
                        if (ti[numtracks + 1].handle == NULL) {
@@ -579,7 +515,7 @@ static int parseccd(const char *isofile) {
                else if (!strncmp(linebuf, "INDEX 1=", 8)) {
                        sscanf(linebuf, "INDEX 1=%d", &t);
                        sec2msf(t + 2 * 75, ti[numtracks].start);
-                       ti[numtracks].start_offset = t;
+                       ti[numtracks].start_offset = t * 2352;
 
                        // If we've already seen another track, this is its end
                        if (numtracks > 1) {
@@ -664,7 +600,7 @@ static int parsemds(const char *isofile) {
 
        // check if the image contains mixed subchannel data
        fseek(fi, offset + 1, SEEK_SET);
-       subChanMixed = (fgetc(fi) ? TRUE : FALSE);
+       subChanMixed = subChanRaw = (fgetc(fi) ? TRUE : FALSE);
 
        // read track data
        for (i = 1; i <= numtracks; i++) {
@@ -686,14 +622,14 @@ static int parsemds(const char *isofile) {
                fseek(fi, offset + 0x28, SEEK_SET);
                fread(&l, 1, sizeof(unsigned int), fi);
                l = SWAP32(l);
-               ti[i].start_offset = l / CD_FRAMESIZE_RAW;
+               ti[i].start_offset = l;
 
                // get pregap
                fseek(fi, extra_offset, SEEK_SET);
                fread(&l, 1, sizeof(unsigned int), fi);
                l = SWAP32(l);
                if (l != 0 && i > 1)
-                       pregapOffset = ti[i].start_offset;
+                       pregapOffset = msf2sec(ti[i].start);
 
                // get the track length
                fread(&l, 1, sizeof(unsigned int), fi);
@@ -727,8 +663,9 @@ static int handlepbp(const char *isofile) {
                unsigned int dontcare[6];
        } index_entry;
        char psar_sig[11];
-       unsigned int t, cd_length, cdimg_base;
-       unsigned int offsettab[8], psisoimg_offs;
+       off_t psisoimg_offs, cdimg_base;
+       unsigned int t, cd_length;
+       unsigned int offsettab[8];
        const char *ext = NULL;
        int i, ret;
 
@@ -737,17 +674,19 @@ static int handlepbp(const char *isofile) {
        if (ext == NULL || (strcmp(ext, ".pbp") != 0 && strcmp(ext, ".PBP") != 0))
                return -1;
 
+       fseeko(cdHandle, 0, SEEK_SET);
+
        numtracks = 0;
 
        ret = fread(&pbp_hdr, 1, sizeof(pbp_hdr), cdHandle);
        if (ret != sizeof(pbp_hdr)) {
-               fprintf(stderr, "failed to read pbp\n");
+               SysPrintf("failed to read pbp\n");
                goto fail_io;
        }
 
-       ret = fseek(cdHandle, pbp_hdr.psar_offs, SEEK_SET);
+       ret = fseeko(cdHandle, pbp_hdr.psar_offs, SEEK_SET);
        if (ret != 0) {
-               fprintf(stderr, "failed to seek to %x\n", pbp_hdr.psar_offs);
+               SysPrintf("failed to seek to %x\n", pbp_hdr.psar_offs);
                goto fail_io;
        }
 
@@ -756,14 +695,14 @@ static int handlepbp(const char *isofile) {
        psar_sig[10] = 0;
        if (strcmp(psar_sig, "PSTITLEIMG") == 0) {
                // multidisk image?
-               ret = fseek(cdHandle, pbp_hdr.psar_offs + 0x200, SEEK_SET);
+               ret = fseeko(cdHandle, pbp_hdr.psar_offs + 0x200, SEEK_SET);
                if (ret != 0) {
-                       fprintf(stderr, "failed to seek to %x\n", pbp_hdr.psar_offs + 0x200);
+                       SysPrintf("failed to seek to %x\n", pbp_hdr.psar_offs + 0x200);
                        goto fail_io;
                }
 
                if (fread(&offsettab, 1, sizeof(offsettab), cdHandle) != sizeof(offsettab)) {
-                       fprintf(stderr, "failed to read offsettab\n");
+                       SysPrintf("failed to read offsettab\n");
                        goto fail_io;
                }
 
@@ -773,7 +712,7 @@ static int handlepbp(const char *isofile) {
                }
                cdrIsoMultidiskCount = i;
                if (cdrIsoMultidiskCount == 0) {
-                       fprintf(stderr, "multidisk eboot has 0 images?\n");
+                       SysPrintf("multidisk eboot has 0 images?\n");
                        goto fail_io;
                }
 
@@ -782,9 +721,9 @@ static int handlepbp(const char *isofile) {
 
                psisoimg_offs += offsettab[cdrIsoMultidiskSelect];
 
-               ret = fseek(cdHandle, psisoimg_offs, SEEK_SET);
+               ret = fseeko(cdHandle, psisoimg_offs, SEEK_SET);
                if (ret != 0) {
-                       fprintf(stderr, "failed to seek to %x\n", psisoimg_offs);
+                       SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs);
                        goto fail_io;
                }
 
@@ -793,14 +732,14 @@ static int handlepbp(const char *isofile) {
        }
 
        if (strcmp(psar_sig, "PSISOIMG00") != 0) {
-               fprintf(stderr, "bad psar_sig: %s\n", psar_sig);
+               SysPrintf("bad psar_sig: %s\n", psar_sig);
                goto fail_io;
        }
 
        // seek to TOC
-       ret = fseek(cdHandle, psisoimg_offs + 0x800, SEEK_SET);
+       ret = fseeko(cdHandle, psisoimg_offs + 0x800, SEEK_SET);
        if (ret != 0) {
-               fprintf(stderr, "failed to seek to %x\n", psisoimg_offs + 0x800);
+               SysPrintf("failed to seek to %llx\n", (long long)psisoimg_offs + 0x800);
                goto fail_io;
        }
 
@@ -820,6 +759,7 @@ static int handlepbp(const char *isofile) {
 
                ti[i].start_offset = btoi(toc_entry.index0[0]) * 60 * 75 +
                        btoi(toc_entry.index0[1]) * 75 + btoi(toc_entry.index0[2]);
+               ti[i].start_offset *= 2352;
                ti[i].start[0] = btoi(toc_entry.index1[0]);
                ti[i].start[1] = btoi(toc_entry.index1[1]);
                ti[i].start[2] = btoi(toc_entry.index1[2]);
@@ -829,13 +769,13 @@ static int handlepbp(const char *isofile) {
                        sec2msf(t, ti[i - 1].length);
                }
        }
-       t = cd_length - ti[numtracks].start_offset;
+       t = cd_length - ti[numtracks].start_offset / 2352;
        sec2msf(t, ti[numtracks].length);
 
        // seek to ISO index
-       ret = fseek(cdHandle, psisoimg_offs + 0x4000, SEEK_SET);
+       ret = fseeko(cdHandle, psisoimg_offs + 0x4000, SEEK_SET);
        if (ret != 0) {
-               fprintf(stderr, "failed to seek to ISO index\n");
+               SysPrintf("failed to seek to ISO index\n");
                goto fail_io;
        }
 
@@ -855,7 +795,7 @@ static int handlepbp(const char *isofile) {
        for (i = 0; i < compr_img->index_len; i++) {
                ret = fread(&index_entry, 1, sizeof(index_entry), cdHandle);
                if (ret != sizeof(index_entry)) {
-                       fprintf(stderr, "failed to read index_entry #%d\n", i);
+                       SysPrintf("failed to read index_entry #%d\n", i);
                        goto fail_index;
                }
 
@@ -891,6 +831,7 @@ static int handlecbin(const char *isofile) {
                unsigned char rsv_06[2];
        } ciso_hdr;
        const char *ext = NULL;
+       unsigned int *index_table = NULL;
        unsigned int index = 0, plain;
        int i, ret;
 
@@ -899,20 +840,22 @@ static int handlecbin(const char *isofile) {
        if (ext == NULL || (strcasecmp(ext + 1, ".cbn") != 0 && strcasecmp(ext, ".cbin") != 0))
                return -1;
 
+       fseek(cdHandle, 0, SEEK_SET);
+
        ret = fread(&ciso_hdr, 1, sizeof(ciso_hdr), cdHandle);
        if (ret != sizeof(ciso_hdr)) {
-               fprintf(stderr, "failed to read ciso header\n");
+               SysPrintf("failed to read ciso header\n");
                return -1;
        }
 
        if (strncmp(ciso_hdr.magic, "CISO", 4) != 0 || ciso_hdr.total_bytes <= 0 || ciso_hdr.block_size <= 0) {
-               fprintf(stderr, "bad ciso header\n");
+               SysPrintf("bad ciso header\n");
                return -1;
        }
        if (ciso_hdr.header_size != 0 && ciso_hdr.header_size != sizeof(ciso_hdr)) {
-               ret = fseek(cdHandle, ciso_hdr.header_size, SEEK_SET);
+               ret = fseeko(cdHandle, ciso_hdr.header_size, SEEK_SET);
                if (ret != 0) {
-                       fprintf(stderr, "failed to seek to %x\n", ciso_hdr.header_size);
+                       SysPrintf("failed to seek to %x\n", ciso_hdr.header_size);
                        return -1;
                }
        }
@@ -925,30 +868,33 @@ static int handlecbin(const char *isofile) {
        compr_img->current_block = (unsigned int)-1;
 
        compr_img->index_len = ciso_hdr.total_bytes / ciso_hdr.block_size;
-       compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0]));
-       if (compr_img->index_table == NULL)
+       index_table = malloc((compr_img->index_len + 1) * sizeof(index_table[0]));
+       if (index_table == NULL)
                goto fail_io;
 
-       ret = fread(compr_img->index_table, sizeof(compr_img->index_table[0]), compr_img->index_len, cdHandle);
+       ret = fread(index_table, sizeof(index_table[0]), compr_img->index_len, cdHandle);
        if (ret != compr_img->index_len) {
-               fprintf(stderr, "failed to read index table\n");
+               SysPrintf("failed to read index table\n");
                goto fail_index;
        }
 
+       compr_img->index_table = malloc((compr_img->index_len + 1) * sizeof(compr_img->index_table[0]));
+       if (compr_img->index_table == NULL)
+               goto fail_index;
+
        for (i = 0; i < compr_img->index_len + 1; i++) {
-               index = compr_img->index_table[i];
+               index = index_table[i];
                plain = index & 0x80000000;
                index &= 0x7fffffff;
-               compr_img->index_table[i] = (index << ciso_hdr.align) | plain;
+               compr_img->index_table[i] = (off_t)index << ciso_hdr.align;
+               if (plain)
+                       compr_img->index_table[i] |= OFF_T_MSB;
        }
-       if ((long long)index << ciso_hdr.align >= 0x80000000ll)
-               fprintf(stderr, "warning: ciso img too large, expect problems\n");
 
        return 0;
 
 fail_index:
-       free(compr_img->index_table);
-       compr_img->index_table = NULL;
+       free(index_table);
 fail_io:
        if (compr_img != NULL) {
                free(compr_img);
@@ -957,6 +903,84 @@ fail_io:
        return -1;
 }
 
+#ifdef HAVE_CHD
+static int handlechd(const char *isofile) {
+       int frame_offset = 0;
+       int file_offset = 0;
+
+       chd_img = (CHD_IMG *)calloc(1, sizeof(*chd_img));
+       if (chd_img == NULL)
+               goto fail_io;
+
+       if(chd_open(isofile, CHD_OPEN_READ, NULL, &chd_img->chd) != CHDERR_NONE)
+               goto fail_io;
+
+       chd_img->header = chd_get_header(chd_img->chd);
+
+       chd_img->buffer = (unsigned char (*)[CD_FRAMESIZE_RAW + SUB_FRAMESIZE])malloc(chd_img->header->hunkbytes);
+       if (chd_img->buffer == NULL)
+               goto fail_io;
+
+       chd_img->sectors_per_hunk = chd_img->header->hunkbytes / (CD_FRAMESIZE_RAW + SUB_FRAMESIZE);
+       chd_img->current_hunk = (unsigned int)-1;
+
+       cddaBigEndian = TRUE;
+
+       numtracks = 0;
+       memset(ti, 0, sizeof(ti));
+
+       while (1)
+       {
+               struct {
+                       char type[64];
+                       char subtype[32];
+                       char pgtype[32];
+                       char pgsub[32];
+                       uint32_t track;
+                       uint32_t frames;
+                       uint32_t pregap;
+                       uint32_t postgap;
+               } md = {};
+               char meta[256];
+               uint32_t meta_size = 0;
+
+               if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA2_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE)
+                       sscanf(meta, CDROM_TRACK_METADATA2_FORMAT, &md.track, md.type, md.subtype, &md.frames, &md.pregap, md.pgtype, md.pgsub, &md.postgap);
+               else if (chd_get_metadata(chd_img->chd, CDROM_TRACK_METADATA_TAG, numtracks, meta, sizeof(meta), &meta_size, NULL, NULL) == CHDERR_NONE)
+                       sscanf(meta, CDROM_TRACK_METADATA_FORMAT, &md.track, md.type, md.subtype, &md.frames);
+               else
+                       break;
+
+               if(md.track == 1)
+                       md.pregap = 150;
+               else
+                       sec2msf(msf2sec(ti[md.track-1].length) + md.pregap, ti[md.track-1].length);
+
+               ti[md.track].type = !strncmp(md.type, "AUDIO", 5) ? CDDA : DATA;
+
+               sec2msf(frame_offset + md.pregap, ti[md.track].start);
+               sec2msf(md.frames, ti[md.track].length);
+
+               ti[md.track].start_offset = file_offset;
+
+               frame_offset += md.pregap + md.frames + md.postgap;
+               file_offset += md.frames + md.postgap;
+               numtracks++;
+       }
+
+       if (numtracks)
+               return 0;
+
+fail_io:
+       if (chd_img != NULL) {
+               free(chd_img->buffer);
+               free(chd_img);
+               chd_img = NULL;
+       }
+       return -1;
+}
+#endif
+
 // this function tries to get the .sub file of the given .img
 static int opensubfile(const char *isoname) {
        char            subname[MAXPATHLEN];
@@ -998,18 +1022,18 @@ static int opensbifile(const char *isoname) {
        return LoadSBI(sbiname, s);
 }
 
-static int cdread_normal(FILE *f, void *dest, int sector, int offset)
+static int cdread_normal(FILE *f, unsigned int base, void *dest, int sector)
 {
-       fseek(f, sector * CD_FRAMESIZE_RAW + offset, SEEK_SET);
-       return fread(dest, 1, CD_FRAMESIZE_RAW - offset, f);
+       fseek(f, base + sector * CD_FRAMESIZE_RAW, SEEK_SET);
+       return fread(dest, 1, CD_FRAMESIZE_RAW, f);
 }
 
-static int cdread_sub_mixed(FILE *f, void *dest, int sector, int offset)
+static int cdread_sub_mixed(FILE *f, unsigned int base, void *dest, int sector)
 {
        int ret;
 
-       fseek(f, sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + offset, SEEK_SET);
-       ret = fread(dest, 1, CD_FRAMESIZE_RAW - offset, f);
+       fseek(f, base + sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE), SEEK_SET);
+       ret = fread(dest, 1, CD_FRAMESIZE_RAW, f);
        fread(subbuffer, 1, SUB_FRAMESIZE, f);
 
        if (subChanRaw) DecodeRawSubData();
@@ -1017,7 +1041,7 @@ static int cdread_sub_mixed(FILE *f, void *dest, int sector, int offset)
        return ret;
 }
 
-static int uncompress2(void *out, unsigned long *out_size, void *in, unsigned long in_size)
+static int uncompress2_pcsx(void *out, unsigned long *out_size, void *in, unsigned long in_size)
 {
        static z_stream z;
        int ret = 0;
@@ -1048,13 +1072,17 @@ static int uncompress2(void *out, unsigned long *out_size, void *in, unsigned lo
        return ret == 1 ? 0 : ret;
 }
 
-static int cdread_compressed(FILE *f, void *dest, int sector, int offset)
+static int cdread_compressed(FILE *f, unsigned int base, void *dest, int sector)
 {
        unsigned long cdbuffer_size, cdbuffer_size_expect;
-       unsigned int start_byte, size;
+       unsigned int size;
        int is_compressed;
+       off_t start_byte;
        int ret, block;
 
+       if (base)
+               sector += base / 2352;
+
        block = sector >> compr_img->block_shift;
        compr_img->sector_in_blk = sector & ((1 << compr_img->block_shift) - 1);
 
@@ -1064,28 +1092,28 @@ static int cdread_compressed(FILE *f, void *dest, int sector, int offset)
        }
 
        if (sector >= compr_img->index_len * 16) {
-               fprintf(stderr, "sector %d is past img end\n", sector);
+               SysPrintf("sector %d is past img end\n", sector);
                return -1;
        }
 
-       start_byte = compr_img->index_table[block] & 0x7fffffff;
-       if (fseek(cdHandle, start_byte, SEEK_SET) != 0) {
-               fprintf(stderr, "seek error for block %d at %x: ",
-                       block, start_byte);
+       start_byte = compr_img->index_table[block] & ~OFF_T_MSB;
+       if (fseeko(cdHandle, start_byte, SEEK_SET) != 0) {
+               SysPrintf("seek error for block %d at %llx: ",
+                       block, (long long)start_byte);
                perror(NULL);
                return -1;
        }
 
-       is_compressed = !(compr_img->index_table[block] & 0x80000000);
-       size = (compr_img->index_table[block + 1] & 0x7fffffff) - start_byte;
+       is_compressed = !(compr_img->index_table[block] & OFF_T_MSB);
+       size = (compr_img->index_table[block + 1] & ~OFF_T_MSB) - start_byte;
        if (size > sizeof(compr_img->buff_compressed)) {
-               fprintf(stderr, "block %d is too large: %u\n", block, size);
+               SysPrintf("block %d is too large: %u\n", block, size);
                return -1;
        }
 
        if (fread(is_compressed ? compr_img->buff_compressed : compr_img->buff_raw[0],
                                1, size, cdHandle) != size) {
-               fprintf(stderr, "read error for block %d at %x: ", block, start_byte);
+               SysPrintf("read error for block %d at %x: ", block, start_byte);
                perror(NULL);
                return -1;
        }
@@ -1093,14 +1121,14 @@ static int cdread_compressed(FILE *f, void *dest, int sector, int offset)
        if (is_compressed) {
                cdbuffer_size_expect = sizeof(compr_img->buff_raw[0]) << compr_img->block_shift;
                cdbuffer_size = cdbuffer_size_expect;
-               ret = uncompress2(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size);
+               ret = uncompress2_pcsx(compr_img->buff_raw[0], &cdbuffer_size, compr_img->buff_compressed, size);
                if (ret != 0) {
-                       fprintf(stderr, "uncompress failed with %d for block %d, sector %d\n",
+                       SysPrintf("uncompress failed with %d for block %d, sector %d\n",
                                        ret, block, sector);
                        return -1;
                }
                if (cdbuffer_size != cdbuffer_size_expect)
-                       fprintf(stderr, "cdbuffer_size: %lu != %lu, sector %d\n", cdbuffer_size,
+                       SysPrintf("cdbuffer_size: %lu != %lu, sector %d\n", cdbuffer_size,
                                        cdbuffer_size_expect, sector);
        }
 
@@ -1109,22 +1137,46 @@ static int cdread_compressed(FILE *f, void *dest, int sector, int offset)
 
 finish:
        if (dest != cdbuffer) // copy avoid HACK
-               memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk] + offset,
-                       CD_FRAMESIZE_RAW - offset);
-       return CD_FRAMESIZE_RAW - offset;
+               memcpy(dest, compr_img->buff_raw[compr_img->sector_in_blk],
+                       CD_FRAMESIZE_RAW);
+       return CD_FRAMESIZE_RAW;
 }
 
-static int cdread_2048(FILE *f, void *dest, int sector, int offset)
+#ifdef HAVE_CHD
+static int cdread_chd(FILE *f, unsigned int base, void *dest, int sector)
+{
+       int hunk;
+
+       if (base)
+               sector += base;
+
+       hunk = sector / chd_img->sectors_per_hunk;
+       chd_img->sector_in_hunk = sector % chd_img->sectors_per_hunk;
+
+       if (hunk != chd_img->current_hunk)
+       {
+               chd_read(chd_img->chd, hunk, chd_img->buffer);
+               chd_img->current_hunk = hunk;
+       }
+
+       if (dest != cdbuffer) // copy avoid HACK
+               memcpy(dest, chd_img->buffer[chd_img->sector_in_hunk],
+                       CD_FRAMESIZE_RAW);
+       return CD_FRAMESIZE_RAW;
+}
+#endif
+
+static int cdread_2048(FILE *f, unsigned int base, void *dest, int sector)
 {
        int ret;
 
-       fseek(f, sector * 2048, SEEK_SET);
-       ret = fread((char *)dest + 12, 1, 2048, f);
+       fseek(f, base + sector * 2048, SEEK_SET);
+       ret = fread((char *)dest + 12 * 2, 1, 2048, f);
 
        // not really necessary, fake mode 2 header
-       memset(cdbuffer, 0, 12);
-       sec2msf(sector + 2 * 75, (char *)cdbuffer);
-       cdbuffer[3] = 1;
+       memset(cdbuffer, 0, 12 * 2);
+       sec2msf(sector + 2 * 75, (char *)&cdbuffer[12]);
+       cdbuffer[12 + 3] = 1;
 
        return ret;
 }
@@ -1133,8 +1185,14 @@ static unsigned char * CALLBACK ISOgetBuffer_compr(void) {
        return compr_img->buff_raw[compr_img->sector_in_blk] + 12;
 }
 
+#ifdef HAVE_CHD
+static unsigned char *ISOgetBuffer_chd(void) {
+       return chd_img->buffer[chd_img->sector_in_hunk] + 12;
+}
+#endif
+
 static unsigned char * CALLBACK ISOgetBuffer(void) {
-       return cdbuffer;
+       return cdbuffer + 12;
 }
 
 static void PrintTracks(void) {
@@ -1152,6 +1210,8 @@ static void PrintTracks(void) {
 // file for playback
 static long CALLBACK ISOopen(void) {
        boolean isMode1ISO = FALSE;
+       char alt_bin_filename[MAXPATHLEN];
+       const char *bin_filename;
 
        if (cdHandle != NULL) {
                return 0; // it's already open
@@ -1159,6 +1219,8 @@ static long CALLBACK ISOopen(void) {
 
        cdHandle = fopen(GetIsoFile(), "rb");
        if (cdHandle == NULL) {
+               SysPrintf(_("Could't open '%s' for reading: %s\n"),
+                       GetIsoFile(), strerror(errno));
                return -1;
        }
 
@@ -1169,14 +1231,12 @@ static long CALLBACK ISOopen(void) {
        subChanRaw = FALSE;
        pregapOffset = 0;
        cdrIsoMultidiskCount = 1;
+       multifile = 0;
 
        CDR_getBuffer = ISOgetBuffer;
        cdimg_read_func = cdread_normal;
 
-       if (parsecue(GetIsoFile()) == 0) {
-               SysPrintf("[+cue]");
-       }
-       else if (parsetoc(GetIsoFile()) == 0) {
+       if (parsetoc(GetIsoFile()) == 0) {
                SysPrintf("[+toc]");
        }
        else if (parseccd(GetIsoFile()) == 0) {
@@ -1185,6 +1245,9 @@ static long CALLBACK ISOopen(void) {
        else if (parsemds(GetIsoFile()) == 0) {
                SysPrintf("[+mds]");
        }
+       else if (parsecue(GetIsoFile()) == 0) {
+               SysPrintf("[+cue]");
+       }
        if (handlepbp(GetIsoFile()) == 0) {
                SysPrintf("[pbp]");
                CDR_getBuffer = ISOgetBuffer_compr;
@@ -1195,6 +1258,14 @@ static long CALLBACK ISOopen(void) {
                CDR_getBuffer = ISOgetBuffer_compr;
                cdimg_read_func = cdread_compressed;
        }
+       
+#ifdef HAVE_CHD
+       else if (handlechd(GetIsoFile()) == 0) {
+               printf("[chd]");
+               CDR_getBuffer = ISOgetBuffer_chd;
+               cdimg_read_func = cdread_chd;
+       }
+#endif
 
        if (!subChanMixed && opensubfile(GetIsoFile()) == 0) {
                SysPrintf("[+sub]");
@@ -1203,9 +1274,37 @@ static long CALLBACK ISOopen(void) {
                SysPrintf("[+sbi]");
        }
 
+       fseeko(cdHandle, 0, SEEK_END);
+
+       // maybe user selected metadata file instead of main .bin ..
+       bin_filename = GetIsoFile();
+       if (ftello(cdHandle) < 2352 * 0x10) {
+               static const char *exts[] = { ".bin", ".BIN", ".img", ".IMG" };
+               FILE *tmpf = NULL;
+               size_t i;
+               char *p;
+
+               strncpy(alt_bin_filename, bin_filename, sizeof(alt_bin_filename));
+               alt_bin_filename[MAXPATHLEN - 1] = '\0';
+               if (strlen(alt_bin_filename) >= 4) {
+                       p = alt_bin_filename + strlen(alt_bin_filename) - 4;
+                       for (i = 0; i < sizeof(exts) / sizeof(exts[0]); i++) {
+                               strcpy(p, exts[i]);
+                               tmpf = fopen(alt_bin_filename, "rb");
+                               if (tmpf != NULL)
+                                       break;
+                       }
+               }
+               if (tmpf != NULL) {
+                       bin_filename = alt_bin_filename;
+                       fclose(cdHandle);
+                       cdHandle = tmpf;
+                       fseeko(cdHandle, 0, SEEK_END);
+               }
+       }
+
        // guess whether it is mode1/2048
-       fseek(cdHandle, 0, SEEK_END);
-       if (ftell(cdHandle) % 2048 == 0) {
+       if (ftello(cdHandle) % 2048 == 0) {
                unsigned int modeTest = 0;
                fseek(cdHandle, 0, SEEK_SET);
                fread(&modeTest, 4, 1, cdHandle);
@@ -1227,9 +1326,8 @@ static long CALLBACK ISOopen(void) {
 
        // make sure we have another handle open for cdda
        if (numtracks > 1 && ti[1].handle == NULL) {
-               ti[1].handle = fopen(GetIsoFile(), "rb");
+               ti[1].handle = fopen(bin_filename, "rb");
        }
-       cdda_cur_sector = cdda_toc_delta = 0;
 
        return 0;
 }
@@ -1253,6 +1351,15 @@ static long CALLBACK ISOclose(void) {
                free(compr_img);
                compr_img = NULL;
        }
+       
+#ifdef HAVE_CHD
+       if (chd_img != NULL) {
+               chd_close(chd_img->chd);
+               free(chd_img->buffer);
+               free(chd_img);
+               chd_img = NULL;
+       }
+#endif
 
        for (i = 1; i <= numtracks; i++) {
                if (ti[i].handle != NULL) {
@@ -1261,8 +1368,12 @@ static long CALLBACK ISOclose(void) {
                }
        }
        numtracks = 0;
+       ti[1].type = 0;
        UnloadSBI();
 
+       memset(cdbuffer, 0, sizeof(cdbuffer));
+       CDR_getBuffer = ISOgetBuffer;
+
        return 0;
 }
 
@@ -1302,7 +1413,6 @@ static long CALLBACK ISOgetTN(unsigned char *buffer) {
 //  byte 2 - minute
 static long CALLBACK ISOgetTD(unsigned char track, unsigned char *buffer) {
        if (track == 0) {
-               // CD length according pcsxr-svn (done a bit different here)
                unsigned int sect;
                unsigned char time[3];
                sect = msf2sec(ti[numtracks].start) + msf2sec(ti[numtracks].length);
@@ -1344,11 +1454,12 @@ static void DecodeRawSubData(void) {
 // read track
 // time: byte 0 - minute; byte 1 - second; byte 2 - frame
 // uses bcd format
-static long CALLBACK ISOreadTrack(unsigned char *time) {
+static boolean CALLBACK ISOreadTrack(unsigned char *time) {
        int sector = MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2]));
+       long ret;
 
        if (cdHandle == NULL) {
-               return -1;
+               return 0;
        }
 
        if (pregapOffset) {
@@ -1360,7 +1471,9 @@ static long CALLBACK ISOreadTrack(unsigned char *time) {
                }
        }
 
-       cdimg_read_func(cdHandle, cdbuffer, sector, 12);
+       ret = cdimg_read_func(cdHandle, 0, cdbuffer, sector);
+       if (ret < 0)
+               return 0;
 
        if (subHandle != NULL) {
                fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET);
@@ -1369,47 +1482,14 @@ static long CALLBACK ISOreadTrack(unsigned char *time) {
                if (subChanRaw) DecodeRawSubData();
        }
 
-       return 0;
+       return 1;
 }
 
 // plays cdda audio
 // sector: byte 0 - minute; byte 1 - second; byte 2 - frame
 // does NOT uses bcd format
 static long CALLBACK ISOplay(unsigned char *time) {
-       unsigned int i, abs_sect, start_sect = 0;
-       int track_offset, file_sect;
-
-       if (numtracks <= 1)
-               return 0;
-
-       // find the track
-       abs_sect = msf2sec((char *)time);
-       for (i = numtracks; i > 1; i--) {
-               start_sect = msf2sec(ti[i].start);
-               if (start_sect <= abs_sect + 2 * 75)
-                       break;
-       }
-
-       track_offset = abs_sect - start_sect;
-       file_sect = ti[i].start_offset + track_offset;
-       if (file_sect < 0)
-               file_sect = 0;
-
-       // find the file that contains this track
-       for (; i > 1; i--)
-               if (ti[i].handle != NULL)
-                       break;
-
-       cdda_first_sector = 0;
-       if (i == 1)
-               cdda_first_sector = file_sect - track_offset;
-
-       cdda_toc_delta = abs_sect - file_sect;
-       cddaHandle = ti[i].handle;
-
-       if (SPU_playCDDAchannel != NULL) {
-               startCDDA(file_sect);
-       }
+       playing = TRUE;
        return 0;
 }
 
@@ -1429,20 +1509,74 @@ static unsigned char* CALLBACK ISOgetBufferSub(void) {
 }
 
 static long CALLBACK ISOgetStatus(struct CdrStat *stat) {
-       int sec;
-
+       u32 sect;
+       
        CDR__getStatus(stat);
-
+       
        if (playing) {
                stat->Type = 0x02;
                stat->Status |= 0x80;
        }
        else {
-               stat->Type = 0x01;
+               // BIOS - boot ID (CD type)
+               stat->Type = ti[1].type;
+       }
+       
+       // relative -> absolute time
+       sect = cddaCurPos;
+       sec2msf(sect, (char *)stat->Time);
+       
+       return 0;
+}
+
+// read CDDA sector into buffer
+long CALLBACK ISOreadCDDA(unsigned char m, unsigned char s, unsigned char f, unsigned char *buffer) {
+       unsigned char msf[3] = {m, s, f};
+       unsigned int file, track, track_start = 0;
+       int ret;
+
+       cddaCurPos = msf2sec((char *)msf);
+
+       // find current track index
+       for (track = numtracks; ; track--) {
+               track_start = msf2sec(ti[track].start);
+               if (track_start <= cddaCurPos)
+                       break;
+               if (track == 1)
+                       break;
        }
 
-       sec = cdda_cur_sector + cdda_toc_delta;
-       sec2msf(sec, (char *)stat->Time);
+       // data tracks play silent
+       if (ti[track].type != CDDA) {
+               memset(buffer, 0, CD_FRAMESIZE_RAW);
+               return 0;
+       }
+
+       file = 1;
+       if (multifile) {
+               // find the file that contains this track
+               for (file = track; file > 1; file--)
+                       if (ti[file].handle != NULL)
+                               break;
+       }
+
+       ret = cdimg_read_func(ti[file].handle, ti[track].start_offset,
+               buffer, cddaCurPos - track_start);
+       if (ret != CD_FRAMESIZE_RAW) {
+               memset(buffer, 0, CD_FRAMESIZE_RAW);
+               return -1;
+       }
+
+       if (cddaBigEndian) {
+               int i;
+               unsigned char tmp;
+
+               for (i = 0; i < CD_FRAMESIZE_RAW / 2; i++) {
+                       tmp = buffer[i * 2];
+                       buffer[i * 2] = buffer[i * 2 + 1];
+                       buffer[i * 2 + 1] = tmp;
+               }
+       }
 
        return 0;
 }
@@ -1460,6 +1594,7 @@ void cdrIsoInit(void) {
        CDR_stop = ISOstop;
        CDR_getBufferSub = ISOgetBufferSub;
        CDR_getStatus = ISOgetStatus;
+       CDR_readCDDA = ISOreadCDDA;
 
        CDR_getDriveLetter = CDR__getDriveLetter;
        CDR_configure = CDR__configure;