Files
Aaru/Aaru.Images/Alcohol120/Write.cs

1183 lines
42 KiB
C#

// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename : Write.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Disc image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
// Writes Alcohol 120% disc images.
//
// --[ License ] --------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2023 Natalia Portillo
// ****************************************************************************/
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using Aaru.CommonTypes;
using Aaru.CommonTypes.AaruMetadata;
using Aaru.CommonTypes.Enums;
using Aaru.CommonTypes.Structs;
using Aaru.Decoders.CD;
using Aaru.Helpers;
using TrackType = Aaru.CommonTypes.Enums.TrackType;
namespace Aaru.Images;
public sealed partial class Alcohol120
{
#region IWritableOpticalImage Members
/// <inheritdoc />
public bool Create(string path, MediaType mediaType, Dictionary<string, string> options, ulong sectors,
uint sectorSize)
{
if(!SupportedMediaTypes.Contains(mediaType))
{
ErrorMessage = string.Format(Localization.Unsupported_media_format_0, mediaType);
return false;
}
_imageInfo = new ImageInfo
{
MediaType = mediaType,
SectorSize = sectorSize,
Sectors = sectors
};
try
{
_descriptorStream = new FileStream(path, FileMode.Create, FileAccess.ReadWrite, FileShare.None);
_imageStream =
new
FileStream(Path.Combine(Path.GetDirectoryName(path) ?? "", Path.GetFileNameWithoutExtension(path)) + ".mdf",
FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
}
catch(IOException e)
{
ErrorMessage = string.Format(Localization.Could_not_create_new_image_file_exception_0, e.Message);
return false;
}
_imageInfo.MediaType = mediaType;
switch(mediaType)
{
case MediaType.CD:
case MediaType.CDDA:
case MediaType.CDEG:
case MediaType.CDG:
case MediaType.CDI:
case MediaType.CDMIDI:
case MediaType.CDMRW:
case MediaType.CDPLUS:
case MediaType.CDR:
case MediaType.CDROM:
case MediaType.CDROMXA:
case MediaType.CDRW:
case MediaType.CDV:
case MediaType.DTSCD:
case MediaType.JaguarCD:
case MediaType.MEGACD:
case MediaType.PS1CD:
case MediaType.PS2CD:
case MediaType.SuperCDROM2:
case MediaType.SVCD:
case MediaType.SATURNCD:
case MediaType.ThreeDO:
case MediaType.VCD:
case MediaType.VCDHD:
case MediaType.NeoGeoCD:
case MediaType.PCFX:
case MediaType.CDTV:
case MediaType.CD32:
case MediaType.Nuon:
case MediaType.Playdia:
case MediaType.Pippin:
case MediaType.FMTOWNS:
case MediaType.MilCD:
case MediaType.VideoNow:
case MediaType.VideoNowColor:
case MediaType.VideoNowXp:
case MediaType.CVD:
_isDvd = false;
break;
default:
_isDvd = true;
break;
}
_trackFlags = new Dictionary<byte, byte>();
IsWriting = true;
ErrorMessage = null;
return true;
}
/// <inheritdoc />
public bool WriteMediaTag(byte[] data, MediaTagType tag)
{
if(!IsWriting)
{
ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
return false;
}
switch(tag)
{
case MediaTagType.CD_FullTOC:
if(_isDvd)
{
ErrorMessage = string.Format(Localization.Unsupported_media_tag_0_for_medium_type_1, tag,
_imageInfo.MediaType);
return false;
}
_fullToc = data;
return true;
case MediaTagType.DVD_PFI:
if(!_isDvd)
{
ErrorMessage = string.Format(Localization.Unsupported_media_tag_0_for_medium_type_1, tag,
_imageInfo.MediaType);
return false;
}
_pfi = data;
return true;
case MediaTagType.DVD_DMI:
if(!_isDvd)
{
ErrorMessage = string.Format(Localization.Unsupported_media_tag_0_for_medium_type_1, tag,
_imageInfo.MediaType);
return false;
}
_dmi = data;
return true;
case MediaTagType.DVD_BCA:
if(!_isDvd)
{
ErrorMessage = string.Format(Localization.Unsupported_media_tag_0_for_medium_type_1, tag,
_imageInfo.MediaType);
return false;
}
_bca = data;
return true;
default:
ErrorMessage = string.Format(Localization.Unsupported_media_tag_0, tag);
return false;
}
}
/// <inheritdoc />
public bool WriteSector(byte[] data, ulong sectorAddress)
{
if(!IsWriting)
{
ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
return false;
}
CommonTypes.Structs.Track track =
_writingTracks.FirstOrDefault(trk => sectorAddress >= trk.StartSector && sectorAddress <= trk.EndSector);
if(!_isDvd)
{
ErrorMessage = Localization.Cannot_write_non_long_sectors_to_CD_images;
return false;
}
if(track is null)
{
ErrorMessage = string.Format(Localization.Cant_find_track_containing_0, sectorAddress);
return false;
}
if(track.BytesPerSector != track.RawBytesPerSector)
{
ErrorMessage = Localization.Invalid_write_mode_for_this_sector;
return false;
}
if(data.Length != track.RawBytesPerSector)
{
ErrorMessage = Localization.Incorrect_data_size;
return false;
}
_imageStream.
Seek((long)(track.FileOffset + (sectorAddress - track.StartSector) * (ulong)track.RawBytesPerSector),
SeekOrigin.Begin);
_imageStream.Write(data, 0, data.Length);
return true;
}
/// <inheritdoc />
public bool WriteSectors(byte[] data, ulong sectorAddress, uint length)
{
if(!IsWriting)
{
ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
return false;
}
if(!_isDvd)
{
ErrorMessage = Localization.Cannot_write_non_long_sectors_to_CD_images;
return false;
}
CommonTypes.Structs.Track track =
_writingTracks.FirstOrDefault(trk => sectorAddress >= trk.StartSector && sectorAddress <= trk.EndSector);
if(track is null)
{
ErrorMessage = string.Format(Localization.Cant_find_track_containing_0, sectorAddress);
return false;
}
if(track.BytesPerSector != track.RawBytesPerSector)
{
ErrorMessage = Localization.Invalid_write_mode_for_this_sector;
return false;
}
if(sectorAddress + length > track.EndSector + 1)
{
ErrorMessage = Localization.Cant_cross_tracks;
return false;
}
if(data.Length % track.RawBytesPerSector != 0)
{
ErrorMessage = Localization.Incorrect_data_size;
return false;
}
switch(track.SubchannelType)
{
case TrackSubchannelType.None:
_imageStream.
Seek((long)(track.FileOffset + (sectorAddress - track.StartSector) * (ulong)track.RawBytesPerSector),
SeekOrigin.Begin);
_imageStream.Write(data, 0, data.Length);
ErrorMessage = "";
return true;
case TrackSubchannelType.Raw:
case TrackSubchannelType.RawInterleaved:
_imageStream.
Seek((long)(track.FileOffset + (sectorAddress - track.StartSector) * (ulong)(track.RawBytesPerSector + 96)),
SeekOrigin.Begin);
for(uint i = 0; i < length; i++)
{
_imageStream.Write(data, (int)(i * track.RawBytesPerSector), track.RawBytesPerSector);
_imageStream.Position += 96;
}
ErrorMessage = "";
return true;
default:
ErrorMessage = Localization.Invalid_subchannel_mode_for_this_sector;
return false;
}
}
/// <inheritdoc />
public bool WriteSectorLong(byte[] data, ulong sectorAddress)
{
if(!IsWriting)
{
ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
return false;
}
CommonTypes.Structs.Track track =
_writingTracks.FirstOrDefault(trk => sectorAddress >= trk.StartSector && sectorAddress <= trk.EndSector);
if(track is null)
{
ErrorMessage = string.Format(Localization.Cant_find_track_containing_0, sectorAddress);
return false;
}
if(data.Length != track.RawBytesPerSector)
{
ErrorMessage = Localization.Incorrect_data_size;
return false;
}
var subchannelSize = (uint)(track.SubchannelType != TrackSubchannelType.None ? 96 : 0);
_imageStream.
Seek((long)(track.FileOffset + (sectorAddress - track.StartSector) * (ulong)(track.RawBytesPerSector + subchannelSize)),
SeekOrigin.Begin);
_imageStream.Write(data, 0, data.Length);
return true;
}
/// <inheritdoc />
public bool WriteSectorsLong(byte[] data, ulong sectorAddress, uint length)
{
if(!IsWriting)
{
ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
return false;
}
CommonTypes.Structs.Track track =
_writingTracks.FirstOrDefault(trk => sectorAddress >= trk.StartSector && sectorAddress <= trk.EndSector);
if(track is null)
{
ErrorMessage = string.Format(Localization.Cant_find_track_containing_0, sectorAddress);
return false;
}
if(sectorAddress + length > track.EndSector + 1)
{
ErrorMessage = Localization.Cant_cross_tracks;
return false;
}
if(data.Length % track.RawBytesPerSector != 0)
{
ErrorMessage = Localization.Incorrect_data_size;
return false;
}
var subchannelSize = (uint)(track.SubchannelType != TrackSubchannelType.None ? 96 : 0);
for(uint i = 0; i < length; i++)
{
_imageStream.
Seek((long)(track.FileOffset + (i + sectorAddress - track.StartSector) * (ulong)(track.RawBytesPerSector + subchannelSize)),
SeekOrigin.Begin);
_imageStream.Write(data, (int)(i * track.RawBytesPerSector), track.RawBytesPerSector);
}
return true;
}
/// <inheritdoc />
public bool SetTracks(List<CommonTypes.Structs.Track> tracks)
{
ulong currentDataOffset = 0;
_writingTracks = new List<CommonTypes.Structs.Track>();
if(!_isDvd)
{
CommonTypes.Structs.Track[] tmpTracks = tracks.OrderBy(t => t.Sequence).ToArray();
for(var i = 1; i < tmpTracks.Length; i++)
{
CommonTypes.Structs.Track firstTrackInSession =
tracks.FirstOrDefault(t => t.Session == tmpTracks[i].Session);
if(firstTrackInSession is null)
continue;
if(tmpTracks[i].Sequence == firstTrackInSession.Sequence)
{
if(tmpTracks[i].Sequence > 1)
tmpTracks[i].StartSector += 150;
continue;
}
tmpTracks[i - 1].EndSector += tmpTracks[i].Pregap;
tmpTracks[i].Pregap = 0;
tmpTracks[i].StartSector = tmpTracks[i - 1].EndSector + 1;
}
tracks = tmpTracks.ToList();
}
foreach(CommonTypes.Structs.Track track in tracks.OrderBy(t => t.Sequence))
{
uint subchannelSize;
switch(track.SubchannelType)
{
case TrackSubchannelType.None:
subchannelSize = 0;
break;
case TrackSubchannelType.Raw:
case TrackSubchannelType.RawInterleaved:
subchannelSize = 96;
break;
default:
ErrorMessage = string.Format(Localization.Unsupported_subchannel_type_0, track.SubchannelType);
return false;
}
track.FileOffset = currentDataOffset;
currentDataOffset += (ulong)(track.RawBytesPerSector + subchannelSize) *
(track.EndSector - track.StartSector + 1);
_writingTracks.Add(track);
}
return true;
}
/// <inheritdoc />
public bool Close()
{
if(!IsWriting)
{
ErrorMessage = Localization.Image_is_not_opened_for_writing;
return false;
}
byte sessions = byte.MinValue;
foreach(CommonTypes.Structs.Track t in _writingTracks.Where(t => t.Session > byte.MinValue))
sessions = (byte)t.Session;
var header = new Header
{
signature = _alcoholSignature,
version = new byte[]
{
1, 5
},
type = MediaTypeToMediumType(_imageInfo.MediaType),
sessions = sessions,
structuresOffset = (uint)(_pfi == null ? 0 : 96),
sessionOffset = (uint)(_pfi == null ? 96 : 4196),
unknown1 = new ushort[2],
unknown2 = new uint[2],
unknown3 = new uint[6],
unknown4 = new uint[3]
};
// Alcohol sets this always, Daemon Tool expects this
header.unknown1[0] = 2;
_alcSessions = new Dictionary<int, Session>();
_alcTracks = new Dictionary<int, Track>();
_alcToc = new Dictionary<int, Dictionary<int, Track>>();
_writingTracks = _writingTracks.OrderBy(t => t.Session).ThenBy(t => t.Sequence).ToList();
_alcTrackExtras = new Dictionary<int, TrackExtra>();
long currentTrackOffset = header.sessionOffset + Marshal.SizeOf<Session>() * sessions;
byte[] tmpToc = null;
if(_fullToc != null)
{
byte[] fullTocSize = BigEndianBitConverter.GetBytes((short)_fullToc.Length);
tmpToc = new byte[_fullToc.Length + 2];
Array.Copy(_fullToc, 0, tmpToc, 2, _fullToc.Length);
tmpToc[0] = fullTocSize[0];
tmpToc[1] = fullTocSize[1];
}
FullTOC.CDFullTOC? decodedToc = FullTOC.Decode(tmpToc);
long currentExtraOffset = currentTrackOffset;
var extraCount = 0;
for(var i = 1; i <= sessions; i++)
{
if(decodedToc.HasValue)
{
extraCount += decodedToc.Value.TrackDescriptors.Count(t => t.SessionNumber == i);
currentExtraOffset += Marshal.SizeOf<Track>() *
decodedToc.Value.TrackDescriptors.Count(t => t.SessionNumber == i);
}
else
{
currentExtraOffset += Marshal.SizeOf<Track>() * 3;
extraCount += 3;
currentExtraOffset += Marshal.SizeOf<Track>() * _writingTracks.Count(t => t.Session == i);
extraCount += _writingTracks.Count(t => t.Session == i);
if(i >= sessions)
continue;
currentExtraOffset += Marshal.SizeOf<Track>() * 2;
extraCount += 2;
}
}
long footerOffset = currentExtraOffset + Marshal.SizeOf<TrackExtra>() * extraCount;
if(_bca != null)
{
header.bcaOffset = (uint)footerOffset;
footerOffset += _bca.Length;
}
if(_isDvd)
{
_alcSessions.Add(1, new Session
{
sessionEnd = (int)(_writingTracks[0].EndSector - _writingTracks[0].StartSector + 1),
sessionSequence = 1,
allBlocks = 1,
nonTrackBlocks = 3,
firstTrack = 1,
lastTrack = 1,
trackOffset = 4220
});
footerOffset = 4300;
if(_bca != null)
footerOffset += _bca.Length;
_alcTracks.Add(1, new Track
{
mode = TrackMode.DVD,
adrCtl = 20,
point = 1,
extraOffset = (uint)(_writingTracks[0].EndSector - _writingTracks[0].StartSector + 1),
sectorSize = 2048,
files = 1,
footerOffset = (uint)footerOffset,
unknown = new byte[18],
unknown2 = new byte[24]
});
_alcToc.Add(1, _alcTracks);
}
else
{
for(var i = 1; i <= sessions; i++)
{
CommonTypes.Structs.Track firstTrack = _writingTracks.First(t => t.Session == i);
CommonTypes.Structs.Track lastTrack = _writingTracks.Last(t => t.Session == i);
_alcSessions.Add(i, new Session
{
sessionStart = (int)firstTrack.StartSector - 150,
sessionEnd = (int)lastTrack.EndSector + 1,
sessionSequence = (ushort)i,
allBlocks = (byte)(decodedToc?.TrackDescriptors.Count(t => t.SessionNumber == i) ??
_writingTracks.Count(t => t.Session == i) + 3),
nonTrackBlocks =
(byte)(decodedToc?.TrackDescriptors.Count(t => t.SessionNumber == i &&
t.POINT is >= 0xA0 and <= 0xAF) ??
3),
firstTrack = (ushort)firstTrack.Sequence,
lastTrack = (ushort)lastTrack.Sequence,
trackOffset = (uint)currentTrackOffset
});
Dictionary<int, Track> thisSessionTracks = new();
_trackFlags.TryGetValue((byte)firstTrack.Sequence, out byte firstTrackControl);
_trackFlags.TryGetValue((byte)lastTrack.Sequence, out byte lastTrackControl);
if(firstTrackControl == 0 && firstTrack.Type != TrackType.Audio)
firstTrackControl = (byte)CdFlags.DataTrack;
if(lastTrackControl == 0 && lastTrack.Type != TrackType.Audio)
lastTrackControl = (byte)CdFlags.DataTrack;
(byte minute, byte second, byte frame) leadinPmsf = LbaToMsf(lastTrack.EndSector + 1);
if(decodedToc?.TrackDescriptors.Any(t => t.SessionNumber == i && t.POINT is >= 0xA0 and <= 0xAF) ==
true)
{
foreach(FullTOC.TrackDataDescriptor tocTrk in
decodedToc.Value.TrackDescriptors.Where(t => t.SessionNumber == i &&
t.POINT is >= 0xA0 and <= 0xAF))
{
thisSessionTracks.Add(tocTrk.POINT, new Track
{
adrCtl = (byte)((tocTrk.ADR << 4) + tocTrk.CONTROL),
tno = tocTrk.TNO,
point = tocTrk.POINT,
min = tocTrk.Min,
sec = tocTrk.Sec,
frame = tocTrk.Frame,
zero = tocTrk.Zero,
pmin = tocTrk.PMIN,
psec = tocTrk.PSEC,
pframe = tocTrk.PFRAME,
mode = TrackMode.NoData,
unknown = new byte[18],
unknown2 = new byte[24],
extraOffset = (uint)currentExtraOffset
});
currentTrackOffset += Marshal.SizeOf<Track>();
currentExtraOffset += Marshal.SizeOf<TrackExtra>();
}
}
else
{
thisSessionTracks.Add(0xA0, new Track
{
adrCtl = (byte)((1 << 4) + firstTrackControl),
pmin = (byte)firstTrack.Sequence,
mode = TrackMode.NoData,
point = 0xA0,
unknown = new byte[18],
unknown2 = new byte[24],
psec = (byte)(_imageInfo.MediaType == MediaType.CDI ? 0x10 :
_writingTracks.Any(t => t.Type is TrackType.CdMode2Form1 or TrackType.CdMode2Form2
or TrackType.CdMode2Formless) ? 0x20 : 0),
extraOffset = (uint)currentExtraOffset
});
thisSessionTracks.Add(0xA1, new Track
{
adrCtl = (byte)((1 << 4) + lastTrackControl),
pmin = (byte)lastTrack.Sequence,
mode = TrackMode.NoData,
point = 0xA1,
unknown = new byte[18],
unknown2 = new byte[24],
extraOffset = (uint)currentExtraOffset
});
thisSessionTracks.Add(0xA2, new Track
{
adrCtl = (byte)((1 << 4) + firstTrackControl),
zero = 0,
pmin = leadinPmsf.minute,
psec = leadinPmsf.second,
pframe = leadinPmsf.frame,
mode = TrackMode.NoData,
point = 0xA2,
unknown = new byte[18],
unknown2 = new byte[24],
extraOffset = (uint)currentExtraOffset
});
currentExtraOffset += Marshal.SizeOf<TrackExtra>() * 3;
currentTrackOffset += Marshal.SizeOf<Track>() * 3;
}
foreach(CommonTypes.Structs.Track track in _writingTracks.Where(t => t.Session == i).
OrderBy(t => t.Sequence))
{
var alcTrk = new Track();
if(decodedToc?.TrackDescriptors.Any(t => t.SessionNumber == i && t.POINT == track.Sequence) == true)
{
FullTOC.TrackDataDescriptor tocTrk =
decodedToc.Value.TrackDescriptors.First(t => t.SessionNumber == i &&
t.POINT == track.Sequence);
alcTrk.adrCtl = (byte)((tocTrk.ADR << 4) + tocTrk.CONTROL);
alcTrk.tno = tocTrk.TNO;
alcTrk.point = tocTrk.POINT;
alcTrk.min = tocTrk.Min;
alcTrk.sec = tocTrk.Sec;
alcTrk.frame = tocTrk.Frame;
alcTrk.zero = tocTrk.Zero;
alcTrk.pmin = tocTrk.PMIN;
alcTrk.psec = tocTrk.PSEC;
alcTrk.pframe = tocTrk.PFRAME;
}
else
{
(byte minute, byte second, byte frame) msf = LbaToMsf((ulong)track.Indexes[1]);
_trackFlags.TryGetValue((byte)track.Sequence, out byte trackControl);
if(trackControl == 0 && track.Type != TrackType.Audio)
trackControl = (byte)CdFlags.DataTrack;
alcTrk.adrCtl = (byte)((1 << 4) + trackControl);
alcTrk.point = (byte)track.Sequence;
alcTrk.zero = 0;
alcTrk.pmin = msf.minute;
alcTrk.psec = msf.second;
alcTrk.pframe = msf.frame;
}
alcTrk.mode = TrackTypeToTrackMode(track.Type);
alcTrk.subMode = track.SubchannelType != TrackSubchannelType.None
? SubchannelMode.Interleaved
: SubchannelMode.None;
alcTrk.sectorSize = (ushort)(track.RawBytesPerSector +
(track.SubchannelType != TrackSubchannelType.None ? 96 : 0));
alcTrk.startLba = (uint)(track.StartSector + track.Pregap);
alcTrk.startOffset = track.FileOffset + alcTrk.sectorSize * track.Pregap;
alcTrk.files = 1;
alcTrk.extraOffset = (uint)currentExtraOffset;
alcTrk.footerOffset = (uint)footerOffset;
if(track.Sequence == firstTrack.Sequence)
{
alcTrk.startLba -= (uint)track.Pregap;
alcTrk.startOffset -= alcTrk.sectorSize * track.Pregap;
}
// Alcohol seems to set that for all CD tracks
// Daemon Tools expect it to be like this
alcTrk.unknown = new byte[]
{
0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00
};
alcTrk.unknown2 = new byte[24];
thisSessionTracks.Add((int)track.Sequence, alcTrk);
currentTrackOffset += Marshal.SizeOf<Track>();
currentExtraOffset += Marshal.SizeOf<TrackExtra>();
var trkExtra = new TrackExtra
{
sectors = (uint)(track.EndSector - track.StartSector + 1)
};
if(track.Sequence == firstTrack.Sequence)
trkExtra.pregap = 150;
// When track mode changes there's a mandatory gap, Alcohol needs it
else if(thisSessionTracks.TryGetValue((int)(track.Sequence - 1), out Track previousTrack) &&
_alcTrackExtras.TryGetValue((int)(track.Sequence - 1), out TrackExtra previousExtra) &&
previousTrack.mode != alcTrk.mode)
{
previousExtra.sectors -= 150;
trkExtra.pregap = 150;
_alcTrackExtras.Remove((int)(track.Sequence - 1));
_alcTrackExtras.Add((int)(track.Sequence - 1), previousExtra);
}
else
trkExtra.pregap = 0;
_alcTrackExtras.Add((int)track.Sequence, trkExtra);
}
if(decodedToc?.TrackDescriptors.Any(t => t.SessionNumber == i && t.POINT >= 0xB0) == true)
{
foreach(FullTOC.TrackDataDescriptor tocTrk in
decodedToc.Value.TrackDescriptors.Where(t => t.SessionNumber == i && t.POINT >= 0xB0))
{
thisSessionTracks.Add(tocTrk.POINT, new Track
{
adrCtl = (byte)((tocTrk.ADR << 4) + tocTrk.CONTROL),
tno = tocTrk.TNO,
point = tocTrk.POINT,
min = tocTrk.Min,
sec = tocTrk.Sec,
frame = tocTrk.Frame,
zero = tocTrk.Zero,
pmin = tocTrk.PMIN,
psec = tocTrk.PSEC,
pframe = tocTrk.PFRAME,
mode = TrackMode.NoData,
unknown = new byte[18],
unknown2 = new byte[24],
extraOffset = (uint)currentExtraOffset
});
currentExtraOffset += Marshal.SizeOf<TrackExtra>();
currentTrackOffset += Marshal.SizeOf<Track>();
}
}
else if(i < sessions)
{
(byte minute, byte second, byte frame) leadoutAmsf =
LbaToMsf(_writingTracks.First(t => t.Session == i + 1).StartSector - 150);
(byte minute, byte second, byte frame) leadoutPmsf =
LbaToMsf(_writingTracks.OrderBy(t => t.Session).ThenBy(t => t.Sequence).Last().StartSector);
thisSessionTracks.Add(0xB0, new Track
{
point = 0xB0,
adrCtl = 0x50,
zero = 0,
min = leadoutAmsf.minute,
sec = leadoutAmsf.second,
frame = leadoutAmsf.frame,
pmin = leadoutPmsf.minute,
psec = leadoutPmsf.second,
pframe = leadoutPmsf.frame,
unknown = new byte[18],
unknown2 = new byte[24]
});
thisSessionTracks.Add(0xC0, new Track
{
point = 0xC0,
adrCtl = 0x50,
min = 128,
pmin = 97,
psec = 25,
unknown = new byte[18],
unknown2 = new byte[24]
});
currentTrackOffset += Marshal.SizeOf<Track>() * 2;
}
_alcToc.Add(i, thisSessionTracks);
}
}
_alcFooter = new Footer
{
filenameOffset = (uint)(footerOffset + Marshal.SizeOf<Footer>()),
widechar = 1
};
byte[] filename = Encoding.Unicode.GetBytes("*.mdf"); // Yup, Alcohol stores no filename but a wildcard.
// Write header
_descriptorStream.Seek(0, SeekOrigin.Begin);
var block = new byte[Marshal.SizeOf<Header>()];
nint blockPtr = System.Runtime.InteropServices.Marshal.AllocHGlobal(Marshal.SizeOf<Header>());
System.Runtime.InteropServices.Marshal.StructureToPtr(header, blockPtr, true);
System.Runtime.InteropServices.Marshal.Copy(blockPtr, block, 0, block.Length);
System.Runtime.InteropServices.Marshal.FreeHGlobal(blockPtr);
_descriptorStream.Write(block, 0, block.Length);
// Write DVD structures if present
if(header.structuresOffset != 0)
{
if(_dmi != null)
{
_descriptorStream.Seek(header.structuresOffset, SeekOrigin.Begin);
switch(_dmi.Length)
{
case 2052:
_descriptorStream.Write(_dmi, 0, 2052);
break;
case 2048:
_descriptorStream.Write(new byte[]
{
0x08, 0x02, 0x00, 0x00
}, 0, 4);
_descriptorStream.Write(_dmi, 0, 2048);
break;
}
}
// TODO: Create fake PFI if none present
if(_pfi != null)
{
_descriptorStream.Seek(header.structuresOffset + 2052, SeekOrigin.Begin);
_descriptorStream.Write(_pfi, _pfi.Length - 2048, 2048);
}
}
// Write sessions
_descriptorStream.Seek(header.sessionOffset, SeekOrigin.Begin);
foreach(Session session in _alcSessions.Values)
{
block = new byte[Marshal.SizeOf<Session>()];
blockPtr = System.Runtime.InteropServices.Marshal.AllocHGlobal(Marshal.SizeOf<Session>());
System.Runtime.InteropServices.Marshal.StructureToPtr(session, blockPtr, true);
System.Runtime.InteropServices.Marshal.Copy(blockPtr, block, 0, block.Length);
System.Runtime.InteropServices.Marshal.FreeHGlobal(blockPtr);
_descriptorStream.Write(block, 0, block.Length);
}
// Write tracks
foreach(KeyValuePair<int, Dictionary<int, Track>> kvp in _alcToc)
{
_descriptorStream.Seek(_alcSessions.First(t => t.Key == kvp.Key).Value.trackOffset, SeekOrigin.Begin);
foreach(Track track in kvp.Value.Values)
{
Track alcoholTrack = track;
// Write extra
if(!_isDvd)
{
long position = _descriptorStream.Position;
_descriptorStream.Seek(alcoholTrack.extraOffset, SeekOrigin.Begin);
block = new byte[Marshal.SizeOf<TrackExtra>()];
if(_alcTrackExtras.TryGetValue(alcoholTrack.point, out TrackExtra extra))
{
blockPtr = System.Runtime.InteropServices.Marshal.AllocHGlobal(Marshal.SizeOf<TrackExtra>());
System.Runtime.InteropServices.Marshal.StructureToPtr(extra, blockPtr, true);
System.Runtime.InteropServices.Marshal.Copy(blockPtr, block, 0, block.Length);
System.Runtime.InteropServices.Marshal.FreeHGlobal(blockPtr);
}
else
alcoholTrack.extraOffset = 0;
_descriptorStream.Write(block, 0, block.Length);
_descriptorStream.Seek(position, SeekOrigin.Begin);
}
block = new byte[Marshal.SizeOf<Track>()];
blockPtr = System.Runtime.InteropServices.Marshal.AllocHGlobal(Marshal.SizeOf<Track>());
System.Runtime.InteropServices.Marshal.StructureToPtr(alcoholTrack, blockPtr, true);
System.Runtime.InteropServices.Marshal.Copy(blockPtr, block, 0, block.Length);
System.Runtime.InteropServices.Marshal.FreeHGlobal(blockPtr);
_descriptorStream.Write(block, 0, block.Length);
}
}
// Write BCA
if(_bca != null)
{
_descriptorStream.Seek(header.bcaOffset, SeekOrigin.Begin);
_descriptorStream.Write(_bca, 0, _bca.Length);
}
// Write footer
_descriptorStream.Seek(footerOffset, SeekOrigin.Begin);
block = new byte[Marshal.SizeOf<Footer>()];
blockPtr = System.Runtime.InteropServices.Marshal.AllocHGlobal(Marshal.SizeOf<Footer>());
System.Runtime.InteropServices.Marshal.StructureToPtr(_alcFooter, blockPtr, true);
System.Runtime.InteropServices.Marshal.Copy(blockPtr, block, 0, block.Length);
System.Runtime.InteropServices.Marshal.FreeHGlobal(blockPtr);
_descriptorStream.Write(block, 0, block.Length);
// Write filename
_descriptorStream.Write(filename, 0, filename.Length);
// Write filename null termination
_descriptorStream.Write(new byte[]
{
0, 0
}, 0, 2);
_descriptorStream.Flush();
_descriptorStream.Close();
_imageStream.Flush();
_imageStream.Close();
IsWriting = false;
ErrorMessage = "";
return true;
}
/// <inheritdoc />
public bool SetImageInfo(ImageInfo imageInfo) => true;
/// <inheritdoc />
public bool SetGeometry(uint cylinders, uint heads, uint sectorsPerTrack)
{
ErrorMessage = Localization.Unsupported_feature;
return false;
}
/// <inheritdoc />
public bool WriteSectorTag(byte[] data, ulong sectorAddress, SectorTagType tag)
{
if(!IsWriting)
{
ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
return false;
}
CommonTypes.Structs.Track track =
_writingTracks.FirstOrDefault(trk => sectorAddress >= trk.StartSector && sectorAddress <= trk.EndSector);
if(track is null)
{
ErrorMessage = string.Format(Localization.Cant_find_track_containing_0, sectorAddress);
return false;
}
switch(tag)
{
case SectorTagType.CdTrackFlags:
{
if(data.Length != 1)
{
ErrorMessage = Localization.Incorrect_data_size_for_track_flags;
return false;
}
_trackFlags[(byte)sectorAddress] = data[0];
return true;
}
case SectorTagType.CdSectorSubchannel:
{
if(track.SubchannelType == 0)
{
ErrorMessage =
string.Format(Localization.Trying_to_write_subchannel_to_track_0_that_does_not_have_subchannel,
track.Sequence);
return false;
}
if(data.Length != 96)
{
ErrorMessage = Localization.Incorrect_data_size_for_subchannel;
return false;
}
_imageStream.
Seek((long)(track.FileOffset + (sectorAddress - track.StartSector) * (ulong)(track.RawBytesPerSector + 96)) + track.RawBytesPerSector,
SeekOrigin.Begin);
_imageStream.Write(data, 0, data.Length);
return true;
}
default:
ErrorMessage = string.Format(Localization.Unsupported_tag_type_0, tag);
return false;
}
}
/// <inheritdoc />
public bool WriteSectorsTag(byte[] data, ulong sectorAddress, uint length, SectorTagType tag)
{
if(!IsWriting)
{
ErrorMessage = Localization.Tried_to_write_on_a_non_writable_image;
return false;
}
CommonTypes.Structs.Track track =
_writingTracks.FirstOrDefault(trk => sectorAddress >= trk.StartSector && sectorAddress <= trk.EndSector);
if(track is null)
{
ErrorMessage = string.Format(Localization.Cant_find_track_containing_0, sectorAddress);
return false;
}
switch(tag)
{
case SectorTagType.CdTrackFlags:
return WriteSectorTag(data, sectorAddress, tag);
case SectorTagType.CdSectorSubchannel:
{
if(track.SubchannelType == 0)
{
ErrorMessage =
string.Format(Localization.Trying_to_write_subchannel_to_track_0_that_does_not_have_subchannel,
track.Sequence);
return false;
}
if(data.Length % 96 != 0)
{
ErrorMessage = Localization.Incorrect_data_size_for_subchannel;
return false;
}
for(uint i = 0; i < length; i++)
{
_imageStream.
Seek((long)(track.FileOffset + (i + sectorAddress - track.StartSector) * (ulong)(track.RawBytesPerSector + 96)) + track.RawBytesPerSector,
SeekOrigin.Begin);
_imageStream.Write(data, (int)(i * 96), 96);
}
return true;
}
default:
ErrorMessage = string.Format(Localization.Unsupported_tag_type_0, tag);
return false;
}
}
/// <inheritdoc />
public bool SetDumpHardware(List<DumpHardware> dumpHardware) => false;
/// <inheritdoc />
public bool SetMetadata(Metadata metadata) => false;
#endregion
}