void CommandAudioStartPos()
{
switch (CommandBuffer[9] & 0xC0)
{
case 0x00: // Set start offset in LBA units
audioStartLBA = (CommandBuffer[3] << 16) | (CommandBuffer[4] << 8) | CommandBuffer[5];
break;
case 0x40: // Set start offset in absolute MSF units
byte m = CommandBuffer[2].BCDtoBin();
byte s = CommandBuffer[3].BCDtoBin();
byte f = CommandBuffer[4].BCDtoBin();
audioStartLBA = DiscUtils.Convert_AMSF_To_LBA(m, s, f);
break;
case 0x80: // Set start offset in track units
byte trackNo = CommandBuffer[2].BCDtoBin();
audioStartLBA = disc.Session1.Tracks[trackNo].LBA;
break;
}
if (CommandBuffer[1] == 0)
{
pce.CDAudio.PlayStartingAtLba(audioStartLBA);
pce.CDAudio.Pause();
}
else
{
pce.CDAudio.PlayStartingAtLba(audioStartLBA);
}
SetStatusMessage(STATUS_GOOD, 0);
pce.IntDataTransferComplete = true;
}
void CommandAudioEndPos()
{
switch (CommandBuffer[9] & 0xC0)
{
case 0x00: // Set end offset in LBA units
audioEndLBA = (CommandBuffer[3] << 16) | (CommandBuffer[4] << 8) | CommandBuffer[5];
break;
case 0x40: // Set end offset in absolute MSF units
byte m = CommandBuffer[2].BCDtoBin();
byte s = CommandBuffer[3].BCDtoBin();
byte f = CommandBuffer[4].BCDtoBin();
audioEndLBA = DiscUtils.Convert_AMSF_To_LBA(m, s, f);
break;
case 0x80: // Set end offset in track units
byte trackNo = CommandBuffer[2].BCDtoBin();
if (trackNo - 1 >= disc.Session1.Tracks.Count)
{
audioEndLBA = disc.Session1.LeadoutLBA;
}
else
{
audioEndLBA = disc.Session1.Tracks[trackNo].LBA;
}
break;
}
switch (CommandBuffer[1])
{
case 0: // end immediately
pce.CDAudio.Stop();
break;
case 1: // play in loop mode. I guess this constitues A-B looping
pce.CDAudio.PlayStartingAtLba(audioStartLBA);
pce.CDAudio.EndLBA = audioEndLBA;
pce.CDAudio.PlayMode = CDAudio.PlaybackMode_LoopOnCompletion;
break;
case 2: // Play audio, fire IRQ2 when end position reached, maybe
pce.CDAudio.PlayStartingAtLba(audioStartLBA);
pce.CDAudio.EndLBA = audioEndLBA;
pce.CDAudio.PlayMode = CDAudio.PlaybackMode_CallbackOnCompletion;
break;
case 3: // Play normal
pce.CDAudio.PlayStartingAtLba(audioStartLBA);
pce.CDAudio.EndLBA = audioEndLBA;
pce.CDAudio.PlayMode = CDAudio.PlaybackMode_StopOnCompletion;
break;
}
SetStatusMessage(STATUS_GOOD, 0);
}
void CommandReadTOC()
{
switch (CommandBuffer[1])
{
case 0: // return number of tracks
{
DataIn.Clear();
DataIn.Enqueue(0x01);
DataIn.Enqueue(((byte)disc.Session1.Tracks.Count).BinToBCD());
SetPhase(BusPhase_DataIn);
break;
}
case 1: // return total disc length in minutes/seconds/frames
{
//zero 07-jul-2015 - I may have broken this
int totalLbaLength = disc.Session1.LeadoutLBA;
byte m, s, f;
DiscUtils.Convert_LBA_To_AMSF(totalLbaLength + 150, out m, out s, out f);
DataIn.Clear();
DataIn.Enqueue(m.BinToBCD());
DataIn.Enqueue(s.BinToBCD());
DataIn.Enqueue(f.BinToBCD());
SetPhase(BusPhase_DataIn);
break;
}
case 2: // Return starting position of specified track in MSF format. TODO - did zero adapt this right? track indexing might be off
{
int track = CommandBuffer[2].BCDtoBin();
var tracks = disc.Session1.Tracks;
if (CommandBuffer[2] > 0x99)
{
throw new Exception("invalid track number BCD request... is something I need to handle?");
}
if (track == 0)
{
track = 1;
}
int lbaPos;
if (track > disc.Session1.InformationTrackCount)
{
lbaPos = disc.Session1.LeadoutLBA; //zero 03-jul-2015 - did I adapt this right?
}
else
{
lbaPos = tracks[track].LBA;
}
byte m, s, f;
DiscUtils.Convert_LBA_To_AMSF(lbaPos, out m, out s, out f);
DataIn.Clear();
DataIn.Enqueue(m.BinToBCD());
DataIn.Enqueue(s.BinToBCD());
DataIn.Enqueue(f.BinToBCD());
if (track > tracks.Count || disc.Session1.Tracks[track].IsAudio)
{
DataIn.Enqueue(0);
}
else
{
DataIn.Enqueue(4);
}
SetPhase(BusPhase_DataIn);
break;
}
default:
Console.WriteLine("unimplemented READ TOC command argument!");
break;
}
}
private void DumpVolume(DiscUtils.Ewf.Section.Volume volume, DataTable dataTable)
{
PropertyInfo[] vInfo = volume.GetType().GetProperties();
foreach (PropertyInfo pi in vInfo)
{
object o = pi.GetValue(volume, null);
string val = IsNumber(o) ? string.Format("{0:n0}", o) : o.ToString();
dataTable.Rows.Add(pi.Name, val);
}
long capacity = (long)volume.BytesPerSector * (long)volume.SectorCount;
dataTable.Rows.Add("Capacity*", string.Format("{0:n0}", capacity));
dataTable.Rows.Add("Friendly Capacity*", parseSize(capacity));
}
private void DumpHeader(DiscUtils.Ewf.Section.Header2 header, DataTable dataTable)
{
foreach (DiscUtils.Ewf.Section.Header2.Header2Category Cat in header.Categories)
{
foreach (KeyValuePair<string, string> info in Cat.Info)
{
string val = IsNumber(info.Value) ? string.Format("{0:n0}", info.Value) : info.Value.ToString();
dataTable.Rows.Add(info.Key, info.Value);
}
}
}
