protected void SynthSubchannelAsNeed(SectorSynthJob job)
{
//synth P if needed
if ((job.Parts & ESectorSynthPart.SubchannelP) != 0)
{
SynthUtils.SubP(job.DestBuffer2448, job.DestOffset + 2352, Pause);
}
//synth Q if needed
//TODO - why not already have it serialized? Into a disc resource, even.
if ((job.Parts & ESectorSynthPart.SubchannelQ) != 0)
{
SynthUtils.SubQ_Serialize(job.DestBuffer2448, job.DestOffset + 2352 + 12, ref sq);
}
//clear R-W if needed
if ((job.Parts & ESectorSynthPart.Subchannel_RSTUVW) != 0)
{
Array.Clear(job.DestBuffer2448, job.DestOffset + 2352 + 12 + 12, (12 * 6));
}
//subcode has been generated deinterleaved; we may still need to interleave it
if ((job.Parts & ESectorSynthPart.SubcodeAny) != 0)
{
if ((job.Parts & (ESectorSynthPart.SubcodeDeinterleave)) == 0)
{
SynthUtils.InterleaveSubcodeInplace(job.DestBuffer2448, job.DestOffset + 2352);
}
}
}
public void Synth(SectorSynthJob job)
{
//CCD is always containing everything we'd need (unless a .sub is missing?) so don't worry about flags
var imgBlob = job.Disc.DisposableResources[0] as IBlob;
var subBlob = job.Disc.DisposableResources[1] as IBlob;
//Read_2442(job.LBA, job.DestBuffer2448, job.DestOffset);
//read the IMG data if needed
if ((job.Parts & ESectorSynthPart.UserAny) != 0)
{
long ofs = job.LBA * 2352;
imgBlob.Read(ofs, job.DestBuffer2448, 0, 2352);
}
//if subcode is needed, read it
if ((job.Parts & (ESectorSynthPart.SubcodeAny)) != 0)
{
long ofs = job.LBA * 96;
subBlob.Read(ofs, job.DestBuffer2448, 2352, 96);
//subcode comes to us deinterleved; we may still need to interleave it
if ((job.Parts & (ESectorSynthPart.SubcodeDeinterleave)) == 0)
{
SynthUtils.InterleaveSubcodeInplace(job.DestBuffer2448, job.DestOffset + 2352);
}
}
}
public void Synth(SectorSynthJob job)
{
//mednafen is always synthesizing everything, no need to worry about flags.. mostly./
job.Params.MednaDisc.Read_2442(job.LBA, job.DestBuffer2448, job.DestOffset);
//we may still need to deinterleave it if subcode was requested and it needs deinterleaving
if ((job.Parts & (ESectorSynthPart.SubcodeDeinterleave | ESectorSynthPart.SubcodeAny)) != 0)
{
SynthUtils.DeinterleaveSubcodeInplace(job.DestBuffer2448, 2352);
}
}
/// <summary>
/// applies an SBI file to the disc
/// </summary>
public void Run(Disc disc, SBI.SubQPatchData sbi, bool asMednafen)
{
//TODO - could implement as a blob, to avoid allocating so many byte buffers
//save this, it's small, and we'll want it for disc processing a/b checks
disc.Memos["sbi"] = sbi;
DiscSectorReader dsr = new DiscSectorReader(disc);
int n = sbi.ABAs.Count;
int b = 0;
for (int i = 0; i < n; i++)
{
int lba = sbi.ABAs[i] - 150;
//create a synthesizer which can return the patched data
var ss_patchq = new SS_PatchQ {
Original = disc._Sectors[lba + 150]
};
byte[] subQbuf = ss_patchq.Buffer_SubQ;
//read the old subcode
dsr.ReadLBA_SubQ(lba, subQbuf, 0);
//insert patch
disc._Sectors[lba + 150] = ss_patchq;
//apply SBI patch
for (int j = 0; j < 12; j++)
{
short patch = sbi.subq[b++];
if (patch == -1)
{
continue;
}
else
{
subQbuf[j] = (byte)patch;
}
}
//Apply mednafen hacks
//The reasoning here is that we know we expect these sectors to have a wrong checksum. therefore, generate a checksum, and make it wrong
//However, this seems senseless to me. The whole point of the SBI data is that it stores the patches needed to generate an acceptable subQ, right?
if (asMednafen)
{
SynthUtils.SubQ_SynthChecksum(subQbuf, 0);
subQbuf[10] ^= 0xFF;
subQbuf[11] ^= 0xFF;
}
}
}
public override void Synth(SectorSynthJob job)
{
//read the sector user data
if ((job.Parts & ESectorSynthPart.User2048) != 0)
{
Blob.Read(BlobOffset, job.DestBuffer2448, job.DestOffset + 16, 2048);
}
if ((job.Parts & ESectorSynthPart.Header16) != 0)
{
SynthUtils.SectorHeader(job.DestBuffer2448, job.DestOffset + 0, job.LBA, 1);
}
if ((job.Parts & ESectorSynthPart.ECMAny) != 0)
{
SynthUtils.ECM_Mode1(job.DestBuffer2448, job.DestOffset + 0, job.LBA);
}
SynthSubchannelAsNeed(job);
}
public override void Synth(SectorSynthJob job)
{
//this isn't fully analyzed/optimized
Array.Clear(job.DestBuffer2448, job.DestOffset, 2352);
byte mode = 255;
int form = -1;
switch (TrackType)
{
case CueTrackType.Audio:
mode = 0;
break;
case CueTrackType.CDI_2352:
case CueTrackType.Mode1_2352:
mode = 1;
break;
case CueTrackType.Mode2_2352:
mode = 2;
if (Policy.CUE_PregapMode2_As_XA_Form2)
{
job.DestBuffer2448[job.DestOffset + 12 + 6] = 0x20;
job.DestBuffer2448[job.DestOffset + 12 + 10] = 0x20;
}
form = 2; //no other choice right now really
break;
case CueTrackType.Mode1_2048:
mode = 1;
Pause = true;
break;
case CueTrackType.Mode2_2336:
default:
throw new InvalidOperationException("Not supported: " + TrackType);
}
//audio has no sector header but the others do
if (mode != 0)
{
if ((job.Parts & ESectorSynthPart.Header16) != 0)
{
SynthUtils.SectorHeader(job.DestBuffer2448, job.DestOffset + 0, job.LBA, mode);
}
}
if (mode == 1)
{
if ((job.Parts & ESectorSynthPart.ECMAny) != 0)
{
SynthUtils.ECM_Mode1(job.DestBuffer2448, job.DestOffset + 0, job.LBA);
}
}
if (mode == 2 && form == 2)
{
SynthUtils.EDC_Mode2_Form2(job.DestBuffer2448, job.DestOffset);
}
SynthSubchannelAsNeed(job);
}
