X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=libpcsxcore%2Fcdrom.c;fp=libpcsxcore%2Fcdrom.c;h=f227b1ba531be02b9713035d8eca9f2857644995;hp=fdb38ba9dc312ca05157ce9b47626aae843f21a7;hb=73b29eebea762ea3af6e27060e2b20cd8a58da91;hpb=92ca1ba64e939942ab05aaa3d578f0d165634275 diff --git a/libpcsxcore/cdrom.c b/libpcsxcore/cdrom.c index fdb38ba9..f227b1ba 100644 --- a/libpcsxcore/cdrom.c +++ b/libpcsxcore/cdrom.c @@ -45,7 +45,6 @@ cdrStruct cdr; static unsigned char *pTransfer; -static int subq_broken; /* CD-ROM magic numbers */ #define CdlSync 0 @@ -395,10 +394,58 @@ static void Find_CurTrack(const u8 *time) } } -static void ReadTrack(const u8 *time, int after_seek) { +static void generate_subq(const u8 *time) +{ + unsigned char start[3], next[3]; + unsigned int this_s, start_s, next_s, pregap; + int relative_s; + + CDR_getTD(cdr.CurTrack, start); + if (cdr.CurTrack + 1 <= cdr.ResultTN[1]) { + pregap = 150; + CDR_getTD(cdr.CurTrack + 1, next); + } + else { + // last track - cd size + pregap = 0; + next[0] = cdr.SetSectorEnd[2]; + next[1] = cdr.SetSectorEnd[1]; + next[2] = cdr.SetSectorEnd[0]; + } + + this_s = msf2sec(time); + start_s = fsm2sec(start); + next_s = fsm2sec(next); + + cdr.TrackChanged = FALSE; + + if (next_s - this_s < pregap) { + cdr.TrackChanged = TRUE; + cdr.CurTrack++; + start_s = next_s; + } + + cdr.subq.Index = 1; + + relative_s = this_s - start_s; + if (relative_s < 0) { + cdr.subq.Index = 0; + relative_s = -relative_s; + } + sec2msf(relative_s, cdr.subq.Relative); + + cdr.subq.Track = itob(cdr.CurTrack); + cdr.subq.Relative[0] = itob(cdr.subq.Relative[0]); + cdr.subq.Relative[1] = itob(cdr.subq.Relative[1]); + cdr.subq.Relative[2] = itob(cdr.subq.Relative[2]); + cdr.subq.Absolute[0] = itob(time[0]); + cdr.subq.Absolute[1] = itob(time[1]); + cdr.subq.Absolute[2] = itob(time[2]); +} + +static void ReadTrack(const u8 *time) { unsigned char tmp[3]; struct SubQ *subq; - int track, old_track; u16 crc; tmp[0] = itob(time[0]); @@ -413,81 +460,25 @@ static void ReadTrack(const u8 *time, int after_seek) { cdr.RErr = CDR_readTrack(tmp); memcpy(cdr.Prev, tmp, 3); - cdr.TrackChanged = FALSE; - if (CheckSBI(time)) return; subq = (struct SubQ *)CDR_getBufferSub(); - if (subq != NULL && !subq_broken) { + if (subq != NULL && cdr.CurTrack == 1) { crc = calcCrc((u8 *)subq + 12, 10); - old_track = btoi(cdr.subq.Track); - track = btoi(subq->TrackNumber); - - // track checks are probably wrong, but deals with corrupted - // subq + good checksum - // (how does the real thing handle that?) - if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1]) - && (after_seek || track == old_track || track == old_track + 1)) { + if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1])) { cdr.subq.Track = subq->TrackNumber; cdr.subq.Index = subq->IndexNumber; memcpy(cdr.subq.Relative, subq->TrackRelativeAddress, 3); memcpy(cdr.subq.Absolute, subq->AbsoluteAddress, 3); - - if (track == cdr.CurTrack + 1) { - cdr.CurTrack++; - cdr.TrackChanged = TRUE; - } } else { - CDR_LOG_I("ignore subq @%02x:%02x:%02x\n", + CDR_LOG_I("subq bad crc @%02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]); } } else { - unsigned char start[3], next[3]; - unsigned int this_s, start_s, next_s, pregap; - int relative_s; - - CDR_getTD(cdr.CurTrack, start); - if (cdr.CurTrack + 1 <= cdr.ResultTN[1]) { - pregap = 150; - CDR_getTD(cdr.CurTrack + 1, next); - } - else { - // last track - cd size - pregap = 0; - next[0] = cdr.SetSectorEnd[2]; - next[1] = cdr.SetSectorEnd[1]; - next[2] = cdr.SetSectorEnd[0]; - } - - this_s = msf2sec(time); - start_s = fsm2sec(start); - next_s = fsm2sec(next); - - if (next_s - this_s < pregap) { - cdr.TrackChanged = TRUE; - cdr.CurTrack++; - start_s = next_s; - } - - cdr.subq.Index = 1; - - relative_s = this_s - start_s; - if (relative_s < 0) { - cdr.subq.Index = 0; - relative_s = -relative_s; - } - sec2msf(relative_s, cdr.subq.Relative); - - cdr.subq.Track = itob(cdr.CurTrack); - cdr.subq.Relative[0] = itob(cdr.subq.Relative[0]); - cdr.subq.Relative[1] = itob(cdr.subq.Relative[1]); - cdr.subq.Relative[2] = itob(cdr.subq.Relative[2]); - cdr.subq.Absolute[0] = tmp[0]; - cdr.subq.Absolute[1] = tmp[1]; - cdr.subq.Absolute[2] = tmp[2]; + generate_subq(time); } CDR_LOG(" -> %02x,%02x %02x:%02x:%02x %02x:%02x:%02x\n", @@ -572,7 +563,7 @@ void cdrPlayInterrupt() memcpy(cdr.SetSectorPlay, cdr.SetSector, 4); Find_CurTrack(cdr.SetSectorPlay); - ReadTrack(cdr.SetSectorPlay, 1); + ReadTrack(cdr.SetSectorPlay); cdr.TrackChanged = FALSE; } @@ -604,7 +595,7 @@ void cdrPlayInterrupt() CDRMISC_INT(cdReadTime); // update for CdlGetlocP/autopause - ReadTrack(cdr.SetSectorPlay, 0); + generate_subq(cdr.SetSectorPlay); } void cdrInterrupt() { @@ -686,7 +677,7 @@ void cdrInterrupt() { - plays tracks without retry play */ Find_CurTrack(cdr.SetSectorPlay); - ReadTrack(cdr.SetSectorPlay, 1); + ReadTrack(cdr.SetSectorPlay); cdr.TrackChanged = FALSE; if (!Config.Cdda) @@ -1025,8 +1016,8 @@ void cdrInterrupt() { // Fighting Force 2 - update subq time immediately // - fixes new game - cdr.CurTrack = 1; - ReadTrack(cdr.SetSector, 1); + Find_CurTrack(cdr.SetSector); + ReadTrack(cdr.SetSector); // Crusaders of Might and Magic - update getlocl now @@ -1104,7 +1095,7 @@ void cdrReadInterrupt() { cdr.Result[0] = cdr.StatP; cdr.Seeked = SEEK_DONE; - ReadTrack(cdr.SetSector, 0); + ReadTrack(cdr.SetSector); buf = CDR_getBuffer(); if (buf == NULL) @@ -1197,7 +1188,7 @@ void cdrReadInterrupt() { } // update for CdlGetlocP - ReadTrack(cdr.SetSector, 0); + ReadTrack(cdr.SetSector); Check_Shell(0); } @@ -1626,9 +1617,6 @@ void cdrDmaInterrupt() static void getCdInfo(void) { - unsigned int i, j, sector; - struct SubQ *subq; - u8 tmpp[3]; u8 tmp; CDR_getTN(cdr.ResultTN); @@ -1636,26 +1624,6 @@ static void getCdInfo(void) tmp = cdr.SetSectorEnd[0]; cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2]; cdr.SetSectorEnd[2] = tmp; - - subq_broken = 0; - subq = (struct SubQ *)CDR_getBufferSub(); - if (subq != NULL && cdr.ResultTN[1] >= 2) { - CDR_getTD(cdr.ResultTN[1], tmpp); - sector = fsm2sec(tmpp) - 33; - for (i = 0; i < 5; i++, sector += 2) { - sec2msf(sector, tmpp); - for (j = 0; j < 3; j++) - tmpp[j] = itob(tmpp[j]); - CDR_readTrack(tmpp); - subq = (struct SubQ *)CDR_getBufferSub(); - if (subq->IndexNumber == 0) - break; - } - if (i == 5) { - SysPrintf("cdrom: subchannel data looks broken, not using it\n"); - subq_broken = 1; - } - } } void cdrReset() { @@ -1699,7 +1667,7 @@ int cdrFreeze(void *f, int Mode) { // read right sub data memcpy(tmpp, cdr.Prev, 3); cdr.Prev[0]++; - ReadTrack(tmpp, 1); + ReadTrack(tmpp); if (cdr.Play) { Find_CurTrack(cdr.SetSectorPlay);