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Add pregap to second session in redump gdrom

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This commit is contained in:
Rebecca Wallander
2021-09-25 21:49:57 +02:00
parent 4a9986e37f
commit 8ab3623bf4
2 changed files with 61 additions and 9 deletions
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13
Aaru.Images/CDRWin/Properties.cs
View File

@@ -120,15 +120,18 @@ namespace Aaru.DiscImages
foreach((ushort index, int position) in cdrTrack.Indexes)
aaruTrack.Indexes[index] = position;
if(_discImage.IsRedumpGigadisc &&
cdrTrack.Session == 2 &&
previousStartSector < gdRomSession2Offset)
aaruTrack.TrackStartSector = gdRomSession2Offset;
previousTrackFile = cdrTrack.TrackFile.DataFilter.GetFilename();
aaruTrack.TrackEndSector = aaruTrack.TrackStartSector + cdrTrack.Sectors - 1;
if(_discImage.IsRedumpGigadisc &&
cdrTrack.Session == 2 &&
previousStartSector < gdRomSession2Offset)
{
aaruTrack.TrackStartSector = (ulong)cdrTrack.Indexes[0];
aaruTrack.TrackEndSector = gdRomSession2Offset + cdrTrack.Sectors - (uint)cdrTrack.Pregap - 1;
}
if(cdrTrack.TrackType == CDRWIN_TRACK_TYPE_CDG)
{
aaruTrack.TrackSubchannelFilter = cdrTrack.TrackFile.DataFilter;

57
Aaru.Images/CDRWin/Read.cs
View File

@@ -1253,9 +1253,11 @@ namespace Aaru.DiscImages
track.Session == 2 &&
firstTrackInSession)
{
track.Indexes.Add(0, (int)(0 - (ulong)track.Pregap));
currentSector = (int)gdRomSession2Offset;
firstTrackInSession = false;
currentSector = (int)gdRomSession2Offset - track.Pregap;
track.Indexes.Add(0, 0);
track.Indexes[1] = track.Pregap;
track.Sectors += (ulong)track.Pregap;
firstTrackInSession = false;
}
currentFileStartSector = currentSector;
@@ -1346,7 +1348,8 @@ namespace Aaru.DiscImages
if(_discImage.IsRedumpGigadisc &&
_discImage.Tracks[i].Sequence == 3)
_offsetMap.Add(_discImage.Tracks[i].Sequence, gdRomSession2Offset);
_offsetMap.Add(_discImage.Tracks[i].Sequence,
gdRomSession2Offset - (ulong)_discImage.Tracks[i].Pregap);
else if(_discImage.Tracks[i].Indexes.TryGetValue(0, out int idx0))
_offsetMap.Add(_discImage.Tracks[i].Sequence, (ulong)idx0);
else if(_discImage.Tracks[i].Sequence > 1)
@@ -1746,6 +1749,29 @@ namespace Aaru.DiscImages
sectorAddress -= _lostPregap;
}
if(_discImage.IsRedumpGigadisc &&
aaruTrack.Session == 2 &&
aaruTrack.Indexes[0] >= 45000 - aaruTrack.Pregap &&
aaruTrack.Indexes[1] <= 45000)
{
if(sectorAddress < (ulong)(aaruTrack.Indexes[1] - aaruTrack.Indexes[0]))
{
if(sectorAddress + length + (ulong)aaruTrack.Indexes[0] <= (ulong)aaruTrack.Indexes[1])
return buffer;
ulong pregapPos = (ulong)(aaruTrack.Indexes[1] - aaruTrack.Indexes[0]) - sectorAddress;
byte[] presentData = ReadSectors((ulong)(aaruTrack.Indexes[1] - aaruTrack.Indexes[0]),
(uint)(length - pregapPos), track);
Array.Copy(presentData, 0, buffer, (long)(pregapPos * sectorSize), presentData.Length);
return buffer;
}
sectorAddress -= (ulong)(aaruTrack.Indexes[1] - aaruTrack.Indexes[0]);
}
_imageStream = aaruTrack.TrackFile.DataFilter.GetDataForkStream();
var br = new BinaryReader(_imageStream);
@@ -2152,6 +2178,29 @@ namespace Aaru.DiscImages
sectorAddress -= _lostPregap;
}
if(_discImage.IsRedumpGigadisc &&
aaruTrack.Session == 2 &&
aaruTrack.Indexes[0] >= 45000 - aaruTrack.Pregap &&
aaruTrack.Indexes[1] <= 45000)
{
if(sectorAddress < (ulong)(aaruTrack.Indexes[1] - aaruTrack.Indexes[0]))
{
if(sectorAddress + length + (ulong)aaruTrack.Indexes[0] <= (ulong)aaruTrack.Indexes[1])
return buffer;
ulong pregapPos = (ulong)(aaruTrack.Indexes[1] - aaruTrack.Indexes[0]) - sectorAddress;
byte[] presentData = ReadSectorsLong((ulong)(aaruTrack.Indexes[1] - aaruTrack.Indexes[0]),
(uint)(length - pregapPos), track);
Array.Copy(presentData, 0, buffer, (long)(pregapPos * sectorSize), presentData.Length);
return buffer;
}
sectorAddress -= (ulong)(aaruTrack.Indexes[1] - aaruTrack.Indexes[0]);
}
_imageStream = aaruTrack.TrackFile.DataFilter.GetDataForkStream();
var br = new BinaryReader(_imageStream);