void isoFile::ReadBlock(u8* dst, uint lsn)
{
if (lsn > m_blocks)
{
FastFormatUnicode msg;
msg.Write("isoFile error: Block index is past the end of file! (%u > %u).", lsn, m_blocks);
pxAssertDev(false, msg);
Console.Error(msg);
// [TODO] : Throw exception?
// Typically an error like this is bad; indicating an invalid dump or corrupted
// iso file.
return;
}
if (m_flags == ISOFLAGS_BLOCKDUMP_V2)
_ReadBlockD(dst, lsn);
else
_ReadBlock(dst, lsn);
if (m_type == ISOTYPE_CD)
{
lsn_to_msf(dst + 12, lsn);
dst[15] = 2;
}
}
void cdrInterrupt() {
cdvdTD trackInfo;
int i;
u8 Irq = cdr.Irq;
if (cdr.Stat) {
CDR_INT(0x800);
return;
}
cdr.Irq = 0xff;
cdr.Ctrl&=~0x80;
switch (Irq) {
case CdlSync:
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
break;
case CdlNop:
SetResultSize(1);
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
break;
case CdlSetloc:
cdr.CmdProcess = 0;
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
break;
case CdlPlay:
cdr.CmdProcess = 0;
SetResultSize(1);
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
cdr.StatP|= 0x82;
break;
case CdlForward:
cdr.CmdProcess = 0;
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Complete;
break;
case CdlBackward:
cdr.CmdProcess = 0;
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Complete;
break;
case CdlStandby:
cdr.CmdProcess = 0;
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Complete;
break;
case CdlStop:
cdr.CmdProcess = 0;
SetResultSize(1);
cdr.StatP&=~0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Complete;
// cdr.Stat = Acknowledge;
break;
case CdlPause:
SetResultSize(1);
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
AddIrqQueue(CdlPause + 0x20, 0x800);
break;
case CdlPause + 0x20:
SetResultSize(1);
cdr.StatP&=~0x20;
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Complete;
break;
case CdlInit:
SetResultSize(1);
cdr.StatP = 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
AddIrqQueue(CdlInit + 0x20, 0x800);
break;
case CdlInit + 0x20:
SetResultSize(1);
cdr.Result[0] = cdr.StatP;
cdr.Stat = Complete;
cdr.Init = 1;
break;
case CdlMute:
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
break;
case CdlDemute:
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
break;
case CdlSetfilter:
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
break;
case CdlSetmode:
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
break;
case CdlGetmode:
SetResultSize(6);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Result[1] = cdr.Mode;
cdr.Result[2] = cdr.File;
cdr.Result[3] = cdr.Channel;
cdr.Result[4] = 0;
cdr.Result[5] = 0;
cdr.Stat = Acknowledge;
break;
case CdlGetlocL:
SetResultSize(8);
for (i=0; i<8; i++)
cdr.Result[i] = cdr.Transfer[i];
cdr.Stat = Acknowledge;
break;
case CdlGetlocP:
SetResultSize(8);
cdr.Result[0] = 1;
cdr.Result[1] = 1;
cdr.Result[2] = cdr.Prev[0];
cdr.Result[3] = itob((btoi(cdr.Prev[1])) - 2);
cdr.Result[4] = cdr.Prev[2];
cdr.Result[5] = cdr.Prev[0];
cdr.Result[6] = cdr.Prev[1];
cdr.Result[7] = cdr.Prev[2];
cdr.Stat = Acknowledge;
break;
case CdlGetTN:
cdr.CmdProcess = 0;
SetResultSize(3);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
if (CDVD->getTN(&cdr.ResultTN) == -1) {
cdr.Stat = DiskError;
cdr.Result[0]|= 0x01;
} else {
cdr.Stat = Acknowledge;
cdr.Result[1] = itob(cdr.ResultTN.strack);
cdr.Result[2] = itob(cdr.ResultTN.etrack);
}
break;
case CdlGetTD:
cdr.CmdProcess = 0;
cdr.Track = btoi(cdr.Param[0]);
SetResultSize(4);
cdr.StatP|= 0x2;
if (CDVD->getTD(cdr.Track, &trackInfo) == -1) {
cdr.Stat = DiskError;
cdr.Result[0]|= 0x01;
} else {
lsn_to_msf(cdr.ResultTD, trackInfo.lsn);
cdr.Stat = Acknowledge;
cdr.Result[0] = cdr.StatP;
cdr.Result[1] = cdr.ResultTD[2];
cdr.Result[2] = cdr.ResultTD[1];
cdr.Result[3] = cdr.ResultTD[0];
}
break;
case CdlSeekL:
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
AddIrqQueue(CdlSeekL + 0x20, 0x800);
break;
case CdlSeekL + 0x20:
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Complete;
break;
case CdlSeekP:
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
AddIrqQueue(CdlSeekP + 0x20, 0x800);
break;
case CdlSeekP + 0x20:
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Complete;
break;
case CdlTest:
cdr.Stat = Acknowledge;
switch (cdr.Param[0]) {
case 0x20: // System Controller ROM Version
SetResultSize(4);
*(int*)cdr.Result = *(int*)Test20;
break;
case 0x22:
SetResultSize(8);
*(int*)cdr.Result = *(int*)Test22;
break;
case 0x23:
case 0x24:
SetResultSize(8);
*(int*)cdr.Result = *(int*)Test23;
break;
}
break;
case CdlID:
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
AddIrqQueue(CdlID + 0x20, 0x800);
break;
case CdlID + 0x20:
SetResultSize(8);
cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
cdr.Result[1] = 0x00; // 0x80 leads to the menu in the bios, else loads CD
if (!LoadCdBios) cdr.Result[1] |= 0x80;
cdr.Result[2] = 0x00;
cdr.Result[3] = 0x00;
strncpy((char *)&cdr.Result[4], "PCSX", 4);
cdr.Stat = Complete;
break;
case CdlReset:
SetResultSize(1);
cdr.StatP = 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
break;
case CdlReadToc:
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
AddIrqQueue(CdlReadToc + 0x20, 0x800);
break;
case CdlReadToc + 0x20:
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Complete;
break;
case AUTOPAUSE:
cdr.OCUP = 0;
AddIrqQueue(CdlPause, 0x400);
break;
case READ_ACK:
if (!cdr.Reading) return;
SetResultSize(1);
cdr.StatP|= 0x2;
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
ReadTrack();
CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
break;
case REPPLAY_ACK:
cdr.Stat = Acknowledge;
cdr.Result[0] = cdr.StatP;
SetResultSize(1);
AddIrqQueue(REPPLAY, cdReadTime);
break;
case REPPLAY:
//if ((cdr.Mode & 5) != 5) break;
break;
case 0xff:
return;
default:
cdr.Stat = Complete;
break;
}
if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18)
psxHu32(0x1070)|= 0x4;
CDVD_LOG("Cdr Interrupt %x\n", Irq);
}
int InputIsoFile::FinishRead3(u8* dst, uint mode)
{
int _offset = 0;
int length = 0;
int ret = 0;
if(m_current_lsn < 0)
return -1;
if(m_read_inprogress)
{
ret = m_reader->FinishRead();
m_read_inprogress = false;
if(ret < 0)
return ret;
}
switch (mode)
{
case CDVD_MODE_2352:
_offset = 0;
length = 2352;
break;
case CDVD_MODE_2340:
_offset = 12;
length = 2340;
break;
case CDVD_MODE_2328:
_offset = 24;
length = 2328;
break;
case CDVD_MODE_2048:
_offset = 24;
length = 2048;
break;
}
int end1 = m_blockofs + m_blocksize;
int end2 = _offset + length;
int end = std::min(end1, end2);
int diff = m_blockofs - _offset;
int ndiff = 0;
if(diff > 0)
{
memset(dst, 0, diff);
_offset = m_blockofs;
}
else
{
ndiff = -diff;
diff = 0;
}
length = end - _offset;
uint read_offset = (m_current_lsn - m_read_lsn) * m_blocksize;
memcpy(dst + diff, m_readbuffer + ndiff + read_offset, length);
if (m_type == ISOTYPE_CD && diff >= 12)
{
lsn_to_msf(dst + diff - 12, m_current_lsn);
dst[diff - 9] = 2;
}
return 0;
}