From 19c03d80d7d73eb5fbd86cbe7d4e85faca2c32a7 Mon Sep 17 00:00:00 2001 From: notaz Date: Wed, 22 Jun 2011 00:17:19 +0300 Subject: [PATCH 1/1] cdriso: handle TOC and track timing better --- libpcsxcore/cdriso.c | 182 +++++++++++++++++++++++++------------------ 1 file changed, 105 insertions(+), 77 deletions(-) diff --git a/libpcsxcore/cdriso.c b/libpcsxcore/cdriso.c index eb922812..cf1b3639 100644 --- a/libpcsxcore/cdriso.c +++ b/libpcsxcore/cdriso.c @@ -64,6 +64,8 @@ void CALLBACK CDR__about(void); long CALLBACK CDR__setfilename(char *filename); long CALLBACK CDR__getStatus(struct CdrStat *stat); +static void DecodeRawSubData(void); + extern void *hCDRDriver; struct trackinfo { @@ -71,6 +73,7 @@ struct trackinfo { 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 }; #define MAXTRACKS 100 /* How many tracks can a CD hold? */ @@ -181,12 +184,20 @@ static void *playthread(void *param) s += d; - // skip the subchannel data - fseek(cddaHandle, SUB_FRAMESIZE, SEEK_CUR); + fread(subbuffer, 1, SUB_FRAMESIZE, cddaHandle); + if (subChanRaw) DecodeRawSubData(); } } else { s = fread(sndbuffer, 1, sizeof(sndbuffer), cddaHandle); + + if (subHandle != NULL) { + fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); + if (subChanRaw) DecodeRawSubData(); + + // a bit crude but ohwell + fseek(subHandle, (sizeof(sndbuffer) / CD_FRAMESIZE_RAW - 1) * SUB_FRAMESIZE, SEEK_CUR); + } } if (s == 0) { @@ -264,7 +275,7 @@ static int parsetoc(const char *isofile) { char linebuf[256], dummy[256], name[256]; char *token; char time[20], time2[20]; - unsigned int t; + unsigned int t, sector_offs; numtracks = 0; @@ -300,6 +311,8 @@ static int parsetoc(const char *isofile) { memset(&ti, 0, sizeof(ti)); cddaBigEndian = TRUE; // cdrdao uses big-endian for CD Audio + sector_offs = 2 * 75; + // parse the .toc file while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { // search for tracks @@ -332,7 +345,8 @@ static int parsetoc(const char *isofile) { if (ti[numtracks].type == CDDA) { sscanf(linebuf, "DATAFILE \"%[^\"]\" #%d %8s", name, &t, time2); t /= CD_FRAMESIZE_RAW + (subChanMixed ? SUB_FRAMESIZE : 0); - t += 2 * 75; + ti[numtracks].start_offset = t; + t += sector_offs; sec2msf(t, (char *)&ti[numtracks].start); tok2msf((char *)&time2, (char *)&ti[numtracks].length); } @@ -345,10 +359,16 @@ static int parsetoc(const char *isofile) { 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) + 2 * 75; + ti[numtracks].start_offset = t; + t += msf2sec(ti[numtracks].start) + 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); + } } fclose(fi); @@ -366,9 +386,9 @@ static int parsecue(const char *isofile) { char *token; char time[20]; char *tmp; - char linebuf[256], dummy[256]; + char linebuf[256], tmpb[256], dummy[256]; unsigned int incue_max_len; - unsigned int t, i, total, file_len; + unsigned int t, file_len, sector_offs; numtracks = 0; @@ -413,6 +433,9 @@ static int parsecue(const char *isofile) { memset(&ti, 0, sizeof(ti)); + file_len = 0; + sector_offs = 2 * 75; + while (fgets(linebuf, sizeof(linebuf), fi) != NULL) { strncpy(dummy, linebuf, sizeof(linebuf)); token = strtok(dummy, " "); @@ -421,7 +444,7 @@ static int parsecue(const char *isofile) { continue; } - if (!strcmp(token, "TRACK")){ + if (!strcmp(token, "TRACK")) { numtracks++; if (strstr(linebuf, "AUDIO") != NULL) { @@ -432,46 +455,64 @@ static int parsecue(const char *isofile) { } } else if (!strcmp(token, "INDEX")) { - tmp = strstr(linebuf, "INDEX"); - if (tmp != NULL) { - tmp += strlen("INDEX") + 3; // 3 - space + numeric index - while (*tmp == ' ') tmp++; - if (*tmp != '\n') sscanf(tmp, "%8s", time); - } + sscanf(linebuf, " INDEX %02d %8s", &t, time); + tok2msf(time, (char *)&ti[numtracks].start); - tok2msf((char *)&time, (char *)&ti[numtracks].start); - - t = msf2sec(ti[numtracks].start) + 2 * 75; + t = msf2sec(ti[numtracks].start); + ti[numtracks].start_offset = t; + t += sector_offs; sec2msf(t, ti[numtracks].start); - } - else if (!strcmp(token, "FILE")) { - tmp = strstr(linebuf, "FILE"); - if (tmp == NULL) { - continue; + + // default track length to file length + t = file_len - ti[numtracks].start_offset; + sec2msf(t, ti[numtracks].length); + + if (numtracks > 1 && ti[numtracks].handle == NULL) { + // this track uses the same file as the last, + // start of this track is last track's end + t = msf2sec(ti[numtracks].start) - msf2sec(ti[numtracks - 1].start); + sec2msf(t, ti[numtracks - 1].length); } - tmp += 4; - while (*tmp == ' ') - tmp++; - if (*tmp == '"') { - token = tmp + 1; - tmp = strchr(token, '"'); - if (tmp != NULL) - *tmp = 0; + } + else if (!strcmp(token, "PREGAP")) { + if (sscanf(linebuf, " PREGAP %8s", time) == 1) { + tok2msf(time, dummy); + sector_offs += msf2sec(dummy); } - else { - token = tmp; - tmp = strchr(token, ' '); + } + else if (!strcmp(token, "FILE")) { + sscanf(linebuf, " FILE \"%[^\"]\"", tmpb); + + // absolute path? + ti[numtracks + 1].handle = fopen(tmpb, "rb"); + if (ti[numtracks + 1].handle == NULL) { + // relative to .cue? + tmp = strrchr(tmpb, '\\'); + if (tmp == NULL) + tmp = strrchr(tmpb, '/'); if (tmp != NULL) - *tmp = 0; + tmp++; + else + tmp = tmpb; + strncpy(incue_fname, tmp, incue_max_len); + ti[numtracks + 1].handle = fopen(filepath, "rb"); } - strncpy(incue_fname, token, incue_max_len); - ti[numtracks + 1].handle = fopen(filepath, "rb"); + // update global offset if this is not first file in this .cue + if (numtracks + 1 > 1) + sector_offs += file_len; + + file_len = 0; if (ti[numtracks + 1].handle == NULL) { - SysPrintf(_("could not open: %s\n"), filepath); + SysPrintf(_("\ncould not open: %s\n"), filepath); + continue; } - else if (numtracks == 0 && strlen(isofile) >= 4 && - strcmp(isofile + strlen(isofile) - 4, ".cue") == 0) { + fseek(ti[numtracks + 1].handle, 0, SEEK_END); + file_len = ftell(ti[numtracks + 1].handle) / 2352; + + if (numtracks == 0 && strlen(isofile) >= 4 && + strcmp(isofile + strlen(isofile) - 4, ".cue") == 0) + { // user selected .cue as image file, use it's data track instead fclose(cdHandle); cdHandle = fopen(filepath, "rb"); @@ -481,29 +522,6 @@ static int parsecue(const char *isofile) { fclose(fi); - // make corrections for multi-track .cue, fill track lengths - total = 2 * 75; - file_len = 0; - for (i = 1; i <= numtracks; i++) { - if (ti[i].handle != NULL) { - sec2msf(total, ti[i].start); - fseek(ti[i].handle, 0, SEEK_END); - file_len = ftell(ti[i].handle) / 2352; - sec2msf(file_len, ti[i].length); - total += file_len; - } - else { - // this track uses the same file as the last, - // start of this track is last track's end - if (i > 1) { - t = msf2sec(ti[i].start) - msf2sec(ti[i - 1].start); - sec2msf(t, ti[i - 1].length); - } - t = file_len - msf2sec(ti[i].start) + 2 * 75; - sec2msf(t, ti[i].length); - } - } - return 0; } @@ -544,6 +562,7 @@ 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; // If we've already seen another track, this is its end if (numtracks > 1) { @@ -643,11 +662,6 @@ static int parsemds(const char *isofile) { ti[i].start[1] = fgetc(fi); ti[i].start[2] = fgetc(fi); - if (i > 1) { - l = msf2sec(ti[i].start); - sec2msf(l - 2 * 75, ti[i].start); // ??? - } - // get the track length fread(&extra_offset, 1, sizeof(unsigned int), fi); extra_offset = SWAP32(extra_offset); @@ -657,6 +671,12 @@ static int parsemds(const char *isofile) { l = SWAP32(l); sec2msf(l, ti[i].length); + // get track start offset (in .mdf) + fseek(fi, offset + 0x28, SEEK_SET); + fread(&l, 1, sizeof(unsigned int), fi); + l = SWAP32(l); + ti[i].start_offset = l / CD_FRAMESIZE_RAW; + offset += 0x50; } @@ -872,23 +892,25 @@ static void DecodeRawSubData(void) { // time: byte 0 - minute; byte 1 - second; byte 2 - frame // uses bcd format static long CALLBACK ISOreadTrack(unsigned char *time) { + int sector = MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])); + if (cdHandle == NULL) { return -1; } if (subChanMixed) { - fseek(cdHandle, MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])) * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + 12, SEEK_SET); + fseek(cdHandle, sector * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE) + 12, SEEK_SET); fread(cdbuffer, 1, DATA_SIZE, cdHandle); fread(subbuffer, 1, SUB_FRAMESIZE, cdHandle); if (subChanRaw) DecodeRawSubData(); } else { - fseek(cdHandle, MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])) * CD_FRAMESIZE_RAW + 12, SEEK_SET); + fseek(cdHandle, sector * CD_FRAMESIZE_RAW + 12, SEEK_SET); fread(cdbuffer, 1, DATA_SIZE, cdHandle); if (subHandle != NULL) { - fseek(subHandle, MSF2SECT(btoi(time[0]), btoi(time[1]), btoi(time[2])) * SUB_FRAMESIZE, SEEK_SET); + fseek(subHandle, sector * SUB_FRAMESIZE, SEEK_SET); fread(subbuffer, 1, SUB_FRAMESIZE, subHandle); if (subChanRaw) DecodeRawSubData(); @@ -907,32 +929,38 @@ static unsigned char * CALLBACK ISOgetBuffer(void) { // 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, sect; + unsigned int i, abs_sect; + int file_sect; if (numtracks <= 1) return 0; // find the track - sect = msf2sec((char *)time); + abs_sect = msf2sec((char *)time); for (i = numtracks; i > 1; i--) - if (msf2sec(ti[i].start) <= sect + 2 * 75) + if (msf2sec(ti[i].start) <= abs_sect + 2 * 75) break; + file_sect = ti[i].start_offset + (abs_sect - msf2sec(ti[i].start)); + if (file_sect < 0) + file_sect = 0; + // find the file that contains this track for (; i > 1; i--) if (ti[i].handle != NULL) break; - cddaStartOffset = msf2sec(ti[i].start); - sect -= cddaStartOffset - 2 * 75; + cddaStartOffset = abs_sect - file_sect; cddaHandle = ti[i].handle; if (SPU_playCDDAchannel != NULL) { if (subChanMixed) { - startCDDA(sect * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE)); + startCDDA(file_sect * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE)); } else { - startCDDA(sect * CD_FRAMESIZE_RAW); + startCDDA(file_sect * CD_FRAMESIZE_RAW); + if (subHandle != NULL) + fseek(subHandle, file_sect * SUB_FRAMESIZE, SEEK_SET); } } return 0; -- 2.39.5