cdriso: improve .toc handling

[pcsx_rearmed.git] / libpcsxcore / cdriso.c

diff --git a/libpcsxcore/cdriso.c b/libpcsxcore/cdriso.c
index 94bd3eb..7798774 100644 (file)
--- a/libpcsxcore/cdriso.c
+++ b/libpcsxcore/cdriso.c
@@ -289,10 +289,11 @@ static void startCDDA(void) {
 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;
 
@@ -328,17 +329,21 @@ static int parsetoc(const char *isofile) {
        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++;
@@ -349,9 +354,11 @@ 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)) {
@@ -362,8 +369,7 @@ static int parsetoc(const char *isofile) {
                        if (ti[numtracks].type == CDDA) {
                                sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2);
                                ti[numtracks].start_offset = t;
-                               t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0);
-                               t += sector_offs;
+                               t = t / sector_size + sector_offs;
                                sec2msf(t, (char *)&ti[numtracks].start);
                                tok2msf((char *)&time2, (char *)&ti[numtracks].length);
                        }
@@ -375,22 +381,39 @@ 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 += msf2sec(ti[numtracks].start) * sector_size;
                        ti[numtracks].start_offset = t;
-                       t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0);
-                       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 /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0);
+                               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);