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Aaru/Aaru.Images/BlindWrite4/Read.cs

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// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename : Read.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Disk image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
// Reads BlindWrite 4 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 © 2011-2025 Natalia Portillo
// ****************************************************************************/
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using Aaru.CommonTypes;
using Aaru.CommonTypes.Enums;
using Aaru.CommonTypes.Interfaces;
using Aaru.CommonTypes.Structs;
using Aaru.Decoders.CD;
using Aaru.Helpers;
using Aaru.Logging;
using Humanizer;
using Session = Aaru.CommonTypes.Structs.Session;
namespace Aaru.Images;
public sealed partial class BlindWrite4
{
#region IOpticalMediaImage Members
/// <inheritdoc />
public ErrorNumber Open(IFilter imageFilter)
{
Stream stream = imageFilter.GetDataForkStream();
stream.Seek(0, SeekOrigin.Begin);
if(stream.Length < 19) return ErrorNumber.InvalidArgument;
var tmpArray = new byte[19];
var tmpUShort = new byte[2];
var tmpUInt = new byte[4];
var tmpULong = new byte[8];
stream.EnsureRead(tmpArray, 0, 19);
if(!_bw4Signature.SequenceEqual(tmpArray)) return ErrorNumber.InvalidArgument;
_header = new Header
{
Signature = tmpArray
};
// Seems to always be 2
stream.EnsureRead(tmpUInt, 0, 4);
_header.Unknown1 = BitConverter.ToUInt32(tmpUInt, 0);
// Seems to be a timetamp
stream.EnsureRead(tmpULong, 0, 8);
_header.Timestamp = BitConverter.ToUInt64(tmpULong, 0);
stream.EnsureRead(tmpUInt, 0, 4);
_header.VolumeIdLength = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[_header.VolumeIdLength];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
_header.VolumeIdBytes = tmpArray;
_header.VolumeIdentifier = StringHandlers.CToString(_header.VolumeIdBytes, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
_header.SysIdLength = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[_header.SysIdLength];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
_header.SysIdBytes = tmpArray;
_header.SystemIdentifier = StringHandlers.CToString(_header.SysIdBytes, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
_header.CommentsLength = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[_header.CommentsLength];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
_header.CommentsBytes = tmpArray;
_header.Comments = StringHandlers.CToString(_header.CommentsBytes, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
_header.TrackDescriptors = BitConverter.ToUInt32(tmpUInt, 0);
stream.EnsureRead(tmpUInt, 0, 4);
_header.DataFileLength = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[_header.DataFileLength];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
_header.DataFileBytes = tmpArray;
_header.DataFile = StringHandlers.CToString(_header.DataFileBytes, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
_header.SubchannelFileLength = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[_header.SubchannelFileLength];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
_header.SubchannelFileBytes = tmpArray;
_header.SubchannelFile = StringHandlers.CToString(_header.SubchannelFileBytes, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
_header.Unknown2 = BitConverter.ToUInt32(tmpUInt, 0);
_header.Unknown3 = (byte)stream.ReadByte();
tmpArray = new byte[_header.Unknown3];
stream.EnsureRead(tmpArray, 0, _header.Unknown3);
_header.Unknown4 = tmpArray;
AaruLogging.Debug(MODULE_NAME, "header.signature = {0}", StringHandlers.CToString(_header.Signature));
AaruLogging.Debug(MODULE_NAME, "header.unknown1 = {0}", _header.Unknown1);
AaruLogging.Debug(MODULE_NAME, "header.timestamp = {0}", _header.Timestamp);
AaruLogging.Debug(MODULE_NAME, "header.volumeIdLength = {0}", _header.VolumeIdLength);
AaruLogging.Debug(MODULE_NAME, "header.volumeIdentifier = {0}", _header.VolumeIdentifier);
AaruLogging.Debug(MODULE_NAME, "header.sysIdLength = {0}", _header.SysIdLength);
AaruLogging.Debug(MODULE_NAME, "header.systemIdentifier = {0}", _header.SystemIdentifier);
AaruLogging.Debug(MODULE_NAME, "header.commentsLength = {0}", _header.CommentsLength);
AaruLogging.Debug(MODULE_NAME, "header.comments = {0}", _header.Comments);
AaruLogging.Debug(MODULE_NAME, "header.trackDescriptors = {0}", _header.TrackDescriptors);
AaruLogging.Debug(MODULE_NAME, "header.dataFileLength = {0}", _header.DataFileLength);
AaruLogging.Debug(MODULE_NAME, "header.dataFilter = {0}", _header.DataFilter);
AaruLogging.Debug(MODULE_NAME, "header.dataFile = {0}", _header.DataFile);
AaruLogging.Debug(MODULE_NAME, "header.subchannelFileLength = {0}", _header.SubchannelFileLength);
AaruLogging.Debug(MODULE_NAME, "header.subchannelFilter = {0}", _header.SubchannelFilter);
AaruLogging.Debug(MODULE_NAME, "header.subchannelFile = {0}", _header.SubchannelFile);
AaruLogging.Debug(MODULE_NAME, "header.unknown2 = {0}", _header.Unknown2);
AaruLogging.Debug(MODULE_NAME, "header.unknown3 = {0}", _header.Unknown3);
AaruLogging.Debug(MODULE_NAME, "header.unknown4.Length = {0}", _header.Unknown4.Length);
_bwTracks = [];
for(var i = 0; i < _header.TrackDescriptors; i++)
{
AaruLogging.Debug(MODULE_NAME, "stream.Position = {0}", stream.Position);
var track = new TrackDescriptor();
stream.EnsureRead(tmpUInt, 0, 4);
track.filenameLen = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.filenameLen];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.filenameBytes = tmpArray;
track.filename = StringHandlers.CToString(track.filenameBytes, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.offset = BitConverter.ToUInt32(tmpUInt, 0);
track.subchannel = (byte)stream.ReadByte();
tmpArray = new byte[3];
stream.EnsureRead(tmpArray, 0, 3);
track.unknown1 = tmpArray;
stream.EnsureRead(tmpUInt, 0, 4);
track.unknown2 = BitConverter.ToUInt32(tmpUInt, 0);
track.unknown3 = (byte)stream.ReadByte();
track.session = (byte)stream.ReadByte();
track.unknown4 = (byte)stream.ReadByte();
track.adrCtl = (byte)stream.ReadByte();
track.unknown5 = (byte)stream.ReadByte();
track.trackMode = (TrackType)stream.ReadByte();
track.unknown6 = (byte)stream.ReadByte();
track.point = (byte)stream.ReadByte();
stream.EnsureRead(tmpUInt, 0, 4);
track.unknown7 = BitConverter.ToUInt32(tmpUInt, 0);
stream.EnsureRead(tmpUInt, 0, 4);
track.unknown8 = BitConverter.ToUInt32(tmpUInt, 0);
stream.EnsureRead(tmpUInt, 0, 4);
track.pregapOffsetAdjustment = BitConverter.ToUInt32(tmpUInt, 0);
stream.EnsureRead(tmpUInt, 0, 4);
track.unknown10 = BitConverter.ToUInt32(tmpUInt, 0);
stream.EnsureRead(tmpUShort, 0, 2);
track.unknown11 = BitConverter.ToUInt16(tmpUShort, 0);
stream.EnsureRead(tmpUInt, 0, 4);
track.lastSector = BitConverter.ToUInt32(tmpUInt, 0);
track.unknown12 = (byte)stream.ReadByte();
// This is off by one
track.lastSector--;
stream.EnsureRead(tmpUInt, 0, 4);
track.pregap = BitConverter.ToInt32(tmpUInt, 0);
stream.EnsureRead(tmpUInt, 0, 4);
track.startSector = BitConverter.ToInt32(tmpUInt, 0);
track.unknown13 = new uint[2];
for(var j = 0; j < track.unknown13.Length; j++)
{
stream.EnsureRead(tmpUInt, 0, 4);
track.unknown13[j] = BitConverter.ToUInt32(tmpUInt, 0);
}
stream.EnsureRead(tmpUInt, 0, 4);
track.titleLen = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.titleLen];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.titleBytes = tmpArray;
track.title = StringHandlers.CToString(track.titleBytes, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.performerLen = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.performerLen];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.performerBytes = tmpArray;
track.performer = StringHandlers.CToString(track.performerBytes, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.unkStrLen1 = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.unkStrLen1];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.unkStrBytes1 = tmpArray;
track.unkString1 = StringHandlers.CToString(track.unkStrBytes1, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.unkStrLen2 = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.unkStrLen2];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.unkStrBytes2 = tmpArray;
track.unkString2 = StringHandlers.CToString(track.unkStrBytes2, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.unkStrLen3 = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.unkStrLen3];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.unkStrBytes3 = tmpArray;
track.unkString3 = StringHandlers.CToString(track.unkStrBytes3, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.unkStrLen4 = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.unkStrLen4];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.unkStrBytes4 = tmpArray;
track.unkString4 = StringHandlers.CToString(track.unkStrBytes4, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.discIdLen = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.discIdLen];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.discIdBytes = tmpArray;
track.discId = StringHandlers.CToString(track.discIdBytes, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.unkStrLen5 = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.unkStrLen5];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.unkStrBytes5 = tmpArray;
track.unkString5 = StringHandlers.CToString(track.unkStrBytes5, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.unkStrLen6 = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.unkStrLen6];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.unkStrBytes6 = tmpArray;
track.unkString6 = StringHandlers.CToString(track.unkStrBytes6, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.unkStrLen7 = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.unkStrLen7];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.unkStrBytes7 = tmpArray;
track.unkString7 = StringHandlers.CToString(track.unkStrBytes7, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.unkStrLen8 = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.unkStrLen8];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.unkStrBytes8 = tmpArray;
track.unkString8 = StringHandlers.CToString(track.unkStrBytes8, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.unkStrLen9 = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.unkStrLen9];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.unkStrBytes9 = tmpArray;
track.unkString9 = StringHandlers.CToString(track.unkStrBytes9, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.unkStrLen10 = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.unkStrLen10];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.unkStrBytes10 = tmpArray;
track.unkString10 = StringHandlers.CToString(track.unkStrBytes10, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.unkStrLen11 = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.unkStrLen11];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.unkStrBytes11 = tmpArray;
track.unkString11 = StringHandlers.CToString(track.unkStrBytes11, Encoding.Default);
stream.EnsureRead(tmpUInt, 0, 4);
track.isrcLen = BitConverter.ToUInt32(tmpUInt, 0);
tmpArray = new byte[track.isrcLen];
stream.EnsureRead(tmpArray, 0, tmpArray.Length);
track.isrcBytes = tmpArray;
track.isrcUpc = StringHandlers.CToString(track.isrcBytes, Encoding.Default);
AaruLogging.Debug(MODULE_NAME, "track.filenameLen = {0}", track.filenameLen);
AaruLogging.Debug(MODULE_NAME, "track.filename = {0}", track.filename);
AaruLogging.Debug(MODULE_NAME, "track.offset = {0}", track.offset);
AaruLogging.Debug(MODULE_NAME, "track.subchannel = {0}", track.subchannel);
for(var j = 0; j < track.unknown1.Length; j++)
AaruLogging.Debug(MODULE_NAME, "track.unknown1[{1}] = 0x{0:X8}", track.unknown1[j], j);
AaruLogging.Debug(MODULE_NAME, "track.unknown2 = {0}", track.unknown2);
AaruLogging.Debug(MODULE_NAME, "track.unknown3 = {0}", track.unknown3);
AaruLogging.Debug(MODULE_NAME, "track.session = {0}", track.session);
AaruLogging.Debug(MODULE_NAME, "track.unknown4 = {0}", track.unknown4);
AaruLogging.Debug(MODULE_NAME, "track.adrCtl = {0}", track.adrCtl);
AaruLogging.Debug(MODULE_NAME, "track.unknown5 = {0}", track.unknown5);
AaruLogging.Debug(MODULE_NAME, "track.trackMode = {0}", track.trackMode);
AaruLogging.Debug(MODULE_NAME, "track.unknown6 = {0}", track.unknown6);
AaruLogging.Debug(MODULE_NAME, "track.point = {0}", track.point);
AaruLogging.Debug(MODULE_NAME, "track.unknown7 = {0}", track.unknown7);
AaruLogging.Debug(MODULE_NAME, "track.unknown8 = {0}", track.unknown8);
AaruLogging.Debug(MODULE_NAME, "track.unknown9 = {0}", track.pregapOffsetAdjustment);
AaruLogging.Debug(MODULE_NAME, "track.unknown10 = {0}", track.unknown10);
AaruLogging.Debug(MODULE_NAME, "track.unknown11 = {0}", track.unknown11);
AaruLogging.Debug(MODULE_NAME, "track.lastSector = {0}", track.lastSector);
AaruLogging.Debug(MODULE_NAME, "track.unknown12 = {0}", track.unknown12);
AaruLogging.Debug(MODULE_NAME, "track.pregap = {0}", track.pregap);
AaruLogging.Debug(MODULE_NAME, "track.startSector = {0}", track.startSector);
for(var j = 0; j < track.unknown13.Length; j++)
AaruLogging.Debug(MODULE_NAME, "track.unknown13[{1}] = 0x{0:X8}", track.unknown13[j], j);
AaruLogging.Debug(MODULE_NAME, "track.titleLen = {0}", track.titleLen);
AaruLogging.Debug(MODULE_NAME, "track.title = {0}", track.title);
AaruLogging.Debug(MODULE_NAME, "track.performerLen = {0}", track.performerLen);
AaruLogging.Debug(MODULE_NAME, "track.performer = {0}", track.performer);
AaruLogging.Debug(MODULE_NAME, "track.unkStrLen1 = {0}", track.unkStrLen1);
AaruLogging.Debug(MODULE_NAME, "track.unkString1 = {0}", track.unkString1);
AaruLogging.Debug(MODULE_NAME, "track.unkStrLen2 = {0}", track.unkStrLen2);
AaruLogging.Debug(MODULE_NAME, "track.unkString2 = {0}", track.unkString2);
AaruLogging.Debug(MODULE_NAME, "track.unkStrLen3 = {0}", track.unkStrLen3);
AaruLogging.Debug(MODULE_NAME, "track.unkString3 = {0}", track.unkString3);
AaruLogging.Debug(MODULE_NAME, "track.unkStrLen4 = {0}", track.unkStrLen4);
AaruLogging.Debug(MODULE_NAME, "track.unkString4 = {0}", track.unkString4);
AaruLogging.Debug(MODULE_NAME, "track.discIdLen = {0}", track.discIdLen);
AaruLogging.Debug(MODULE_NAME, "track.discId = {0}", track.discId);
AaruLogging.Debug(MODULE_NAME, "track.unkStrLen5 = {0}", track.unkStrLen5);
AaruLogging.Debug(MODULE_NAME, "track.unkString5 = {0}", track.unkString5);
AaruLogging.Debug(MODULE_NAME, "track.unkStrLen6 = {0}", track.unkStrLen6);
AaruLogging.Debug(MODULE_NAME, "track.unkString6 = {0}", track.unkString6);
AaruLogging.Debug(MODULE_NAME, "track.unkStrLen7 = {0}", track.unkStrLen7);
AaruLogging.Debug(MODULE_NAME, "track.unkString7 = {0}", track.unkString7);
AaruLogging.Debug(MODULE_NAME, "track.unkStrLen8 = {0}", track.unkStrLen8);
AaruLogging.Debug(MODULE_NAME, "track.unkString8 = {0}", track.unkString8);
AaruLogging.Debug(MODULE_NAME, "track.unkStrLen9 = {0}", track.unkStrLen9);
AaruLogging.Debug(MODULE_NAME, "track.unkString9 = {0}", track.unkString9);
AaruLogging.Debug(MODULE_NAME, "track.unkStrLen10 = {0}", track.unkStrLen10);
AaruLogging.Debug(MODULE_NAME, "track.unkString10 = {0}", track.unkString10);
AaruLogging.Debug(MODULE_NAME, "track.unkStrLen11 = {0}", track.unkStrLen11);
AaruLogging.Debug(MODULE_NAME, "track.unkString11 = {0}", track.unkString11);
AaruLogging.Debug(MODULE_NAME, "track.isrcLen = {0}", track.isrcLen);
AaruLogging.Debug(MODULE_NAME, "track.isrcUpc = {0}", track.isrcUpc);
_bwTracks.Add(track);
}
if(!string.IsNullOrEmpty(_header.DataFile))
{
while(true)
{
_dataFilter =
PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder, _header.DataFile));
if(_dataFilter != null) break;
_dataFilter = PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
_header.DataFile
.ToLower(CultureInfo.CurrentCulture)));
if(_dataFilter != null) break;
_dataFilter = PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
_header.DataFile
.ToUpper(CultureInfo.CurrentCulture)));
if(_dataFilter != null) break;
_dataFilter = PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
_header.DataFile
.Split(['\\'],
StringSplitOptions
.RemoveEmptyEntries)
.Last()));
if(_dataFilter != null) break;
_dataFilter = PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
_header.DataFile
.Split(['\\'],
StringSplitOptions
.RemoveEmptyEntries)
.Last()
.ToLower(CultureInfo.CurrentCulture)));
if(_dataFilter != null) break;
_dataFilter = PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
_header.DataFile
.Split(['\\'],
StringSplitOptions
.RemoveEmptyEntries)
.Last()
.ToUpper(CultureInfo.CurrentCulture)));
if(_dataFilter != null) break;
AaruLogging.Error(string.Format(Localization.Data_file_0_not_found, _header.DataFile));
return ErrorNumber.NoSuchFile;
}
}
else
{
AaruLogging.Error(Localization.Unable_to_find_data_file);
return ErrorNumber.NoSuchFile;
}
if(!string.IsNullOrEmpty(_header.SubchannelFile))
{
_subFilter =
((((PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
_header.SubchannelFile)) ??
PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
_header.SubchannelFile
.ToLower(CultureInfo.CurrentCulture)))) ??
PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
_header.SubchannelFile
.ToUpper(CultureInfo.CurrentCulture)))) ??
PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
_header.SubchannelFile
.Split(['\\'],
StringSplitOptions
.RemoveEmptyEntries)
.Last()))) ??
PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
_header.SubchannelFile
.Split(['\\'],
StringSplitOptions.RemoveEmptyEntries)
.Last()
.ToLower(CultureInfo.CurrentCulture)))) ??
PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
_header.SubchannelFile
.Split(['\\'],
StringSplitOptions.RemoveEmptyEntries)
.Last()
.ToUpper(CultureInfo.CurrentCulture)));
}
Tracks = [];
Partitions = [];
_offsetMap = new Dictionary<uint, ulong>();
_trackFlags = new Dictionary<uint, byte>();
ushort maxSession = 0;
_imageInfo.ReadableSectorTags.Add(SectorTagType.CdTrackFlags);
foreach(TrackDescriptor bwTrack in _bwTracks)
{
if(bwTrack.point < 0xA0)
{
var track = new Track
{
Description = bwTrack.title,
EndSector = bwTrack.lastSector
};
if(!string.IsNullOrEmpty(bwTrack.filename))
{
do
{
track.Filter =
PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
bwTrack.filename));
if(track.Filter != null) break;
track.Filter = PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
bwTrack.filename
.ToLower(CultureInfo
.CurrentCulture)));
if(track.Filter != null) break;
track.Filter = PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
bwTrack.filename
.ToUpper(CultureInfo
.CurrentCulture)));
if(track.Filter != null) break;
track.Filter = PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
bwTrack.filename
.Split(['\\'],
StringSplitOptions
.RemoveEmptyEntries)
.Last()));
if(track.Filter != null) break;
track.Filter = PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
bwTrack.filename
.Split(['\\'],
StringSplitOptions
.RemoveEmptyEntries)
.Last()
.ToLower(CultureInfo
.CurrentCulture)));
if(track.Filter != null) break;
track.Filter = PluginRegister.Singleton.GetFilter(Path.Combine(imageFilter.ParentFolder,
bwTrack.filename
.Split(['\\'],
StringSplitOptions
.RemoveEmptyEntries)
.Last()
.ToUpper(CultureInfo
.CurrentCulture)));
track.Filter = _dataFilter;
} while(true);
}
else
track.Filter = _dataFilter;
track.File = _dataFilter.Filename;
track.FileOffset = bwTrack.offset + (150 - bwTrack.pregapOffsetAdjustment) * 2352;
track.SubchannelOffset = (bwTrack.offset / 2352 + (150 - bwTrack.pregapOffsetAdjustment)) * 96;
if(bwTrack.pregap > 0)
{
track.Pregap = (ulong)(bwTrack.startSector - bwTrack.pregap);
track.StartSector = (ulong)bwTrack.pregap;
track.FileOffset -= track.Pregap * 2352;
track.SubchannelOffset -= track.Pregap * 96;
}
else
{
track.Pregap = (ulong)(bwTrack.startSector - bwTrack.pregap);
if(bwTrack.pregap < 0)
track.StartSector = 0;
else
track.StartSector = (ulong)bwTrack.pregap;
}
track.FileType = "BINARY";
track.RawBytesPerSector = 2352;
track.Sequence = bwTrack.point;
track.Session = bwTrack.session;
if(track.Session > maxSession) maxSession = track.Session;
track.SubchannelFilter = _subFilter;
track.SubchannelFile = _subFilter?.Filename;
if(_subFilter != null)
{
track.SubchannelType = TrackSubchannelType.Packed;
if(!_imageInfo.ReadableSectorTags.Contains(SectorTagType.CdSectorSubchannel))
_imageInfo.ReadableSectorTags.Add(SectorTagType.CdSectorSubchannel);
}
else
track.SubchannelType = TrackSubchannelType.None;
switch(bwTrack.trackMode)
{
case TrackType.Audio:
track.Type = CommonTypes.Enums.TrackType.Audio;
_imageInfo.SectorSize = 2352;
track.BytesPerSector = 2352;
break;
case TrackType.Mode1:
track.Type = CommonTypes.Enums.TrackType.CdMode1;
if(!_imageInfo.ReadableSectorTags.Contains(SectorTagType.CdSectorSync))
_imageInfo.ReadableSectorTags.Add(SectorTagType.CdSectorSync);
if(!_imageInfo.ReadableSectorTags.Contains(SectorTagType.CdSectorHeader))
_imageInfo.ReadableSectorTags.Add(SectorTagType.CdSectorHeader);
if(!_imageInfo.ReadableSectorTags.Contains(SectorTagType.CdSectorSubHeader))
_imageInfo.ReadableSectorTags.Add(SectorTagType.CdSectorSubHeader);
if(!_imageInfo.ReadableSectorTags.Contains(SectorTagType.CdSectorEcc))
_imageInfo.ReadableSectorTags.Add(SectorTagType.CdSectorEcc);
if(!_imageInfo.ReadableSectorTags.Contains(SectorTagType.CdSectorEccP))
_imageInfo.ReadableSectorTags.Add(SectorTagType.CdSectorEccP);
if(!_imageInfo.ReadableSectorTags.Contains(SectorTagType.CdSectorEccQ))
_imageInfo.ReadableSectorTags.Add(SectorTagType.CdSectorEccQ);
if(!_imageInfo.ReadableSectorTags.Contains(SectorTagType.CdSectorEdc))
_imageInfo.ReadableSectorTags.Add(SectorTagType.CdSectorEdc);
if(_imageInfo.SectorSize < 2048) _imageInfo.SectorSize = 2048;
track.BytesPerSector = 2048;
break;
case TrackType.Mode2:
track.Type = CommonTypes.Enums.TrackType.CdMode2Formless;
if(!_imageInfo.ReadableSectorTags.Contains(SectorTagType.CdSectorSync))
_imageInfo.ReadableSectorTags.Add(SectorTagType.CdSectorSync);
if(!_imageInfo.ReadableSectorTags.Contains(SectorTagType.CdSectorHeader))
_imageInfo.ReadableSectorTags.Add(SectorTagType.CdSectorHeader);
if(_imageInfo.SectorSize < 2336) _imageInfo.SectorSize = 2336;
track.BytesPerSector = 2336;
break;
default:
track.Type = CommonTypes.Enums.TrackType.Data;
track.RawBytesPerSector = 2048;
_imageInfo.SectorSize = 2048;
track.BytesPerSector = 2048;
break;
}
if(bwTrack.pregap != 0) track.Indexes.Add(0, bwTrack.pregap);
track.Indexes.Add(1, bwTrack.startSector);
var partition = new Partition
{
Description = track.Description,
Size = (track.EndSector - track.StartSector + 1) * 2352,
Length = track.EndSector - track.StartSector + 1,
Sequence = track.Sequence,
Start = track.StartSector + track.Pregap
};
partition.Offset = partition.Start * 2352;
partition.Type = track.Type.Humanize();
Partitions.Add(partition);
Tracks.Add(track);
if(bwTrack.pregap > 0)
_offsetMap[track.Sequence] = (ulong)bwTrack.pregap;
else
_offsetMap[track.Sequence] = 0;
_offsetMap.TryAdd(track.Sequence, track.StartSector);
_trackFlags.TryAdd(track.Sequence, (byte)(bwTrack.adrCtl & 0x0F));
if(bwTrack.lastSector > _imageInfo.Sectors) _imageInfo.Sectors = bwTrack.lastSector + 1;
}
else
{
_imageInfo.MediaBarcode = bwTrack.isrcUpc;
_imageInfo.MediaSerialNumber = bwTrack.discId;
_imageInfo.MediaTitle = bwTrack.title;
if(!string.IsNullOrEmpty(bwTrack.isrcUpc) &&
!_imageInfo.ReadableMediaTags.Contains(MediaTagType.CD_MCN))
_imageInfo.ReadableMediaTags.Add(MediaTagType.CD_MCN);
}
}
Sessions = [];
for(ushort i = 1; i <= maxSession; i++)
{
var session = new Session
{
Sequence = i,
StartTrack = uint.MaxValue,
StartSector = uint.MaxValue
};
foreach(Track track in Tracks.Where(track => track.Session == i))
{
if(track.Sequence < session.StartTrack) session.StartTrack = track.Sequence;
if(track.Sequence > session.EndTrack) session.StartTrack = track.Sequence;
if(track.StartSector < session.StartSector) session.StartSector = track.StartSector;
if(track.EndSector > session.EndSector) session.EndSector = track.EndSector;
}
Sessions.Add(session);
}
// As long as subchannel is written for any track, it is present for all tracks
if(Tracks.Any(static t => t.SubchannelType == TrackSubchannelType.Packed))
foreach(Track track in Tracks)
track.SubchannelType = TrackSubchannelType.Packed;
_imageInfo.MediaType = MediaType.CD;
_imageInfo.Application = "BlindWrite";
_imageInfo.ApplicationVersion = "4";
_imageInfo.Version = "4";
_imageInfo.ImageSize = (ulong)_dataFilter.DataForkLength;
_imageInfo.CreationTime = _dataFilter.CreationTime;
_imageInfo.LastModificationTime = _dataFilter.LastWriteTime;
_imageInfo.MetadataMediaType = MetadataMediaType.OpticalDisc;
var data = false;
var mode2 = false;
var firstAudio = false;
var firstData = false;
var audio = false;
foreach(Track bwTrack in Tracks)
{
// First track is audio
firstAudio |= bwTrack.Sequence == 1 && bwTrack.Type == CommonTypes.Enums.TrackType.Audio;
// First track is data
firstData |= bwTrack.Sequence == 1 && bwTrack.Type != CommonTypes.Enums.TrackType.Audio;
// Any non first track is data
data |= bwTrack.Sequence != 1 && bwTrack.Type != CommonTypes.Enums.TrackType.Audio;
// Any non first track is audio
audio |= bwTrack.Sequence != 1 && bwTrack.Type == CommonTypes.Enums.TrackType.Audio;
mode2 = bwTrack.Type switch
{
CommonTypes.Enums.TrackType.CdMode2Formless => true,
_ => mode2
};
}
if(!data && !firstData)
_imageInfo.MediaType = MediaType.CDDA;
else if(firstAudio && data && Sessions.Count > 1 && mode2)
_imageInfo.MediaType = MediaType.CDPLUS;
else if(firstData && audio || mode2)
_imageInfo.MediaType = MediaType.CDROMXA;
else if(!audio)
_imageInfo.MediaType = MediaType.CDROM;
else
_imageInfo.MediaType = MediaType.CD;
_imageInfo.Comments = _header.Comments;
AaruLogging.Verbose(Localization.BlindWrite_image_describes_a_disc_of_type_0, _imageInfo.MediaType);
if(!string.IsNullOrEmpty(_imageInfo.Comments))
AaruLogging.Verbose(Localization.BlindWrite_comments_0, _imageInfo.Comments);
return ErrorNumber.NoError;
}
/// <inheritdoc />
public ErrorNumber ReadMediaTag(MediaTagType tag, out byte[] buffer)
{
buffer = null;
switch(tag)
{
case MediaTagType.CD_MCN:
{
if(_imageInfo.MediaSerialNumber == null) return ErrorNumber.NoData;
buffer = Encoding.ASCII.GetBytes(_imageInfo.MediaSerialNumber);
return ErrorNumber.NoError;
}
default:
return ErrorNumber.NotSupported;
}
}
/// <inheritdoc />
public ErrorNumber ReadSector(ulong sectorAddress, bool negative, out byte[] buffer, out SectorStatus sectorStatus)
{
sectorStatus = SectorStatus.Dumped;
return ReadSectors(sectorAddress, false, 1, out buffer, out _);
}
/// <inheritdoc />
public ErrorNumber ReadSectorTag(ulong sectorAddress, bool negative, SectorTagType tag, out byte[] buffer) =>
ReadSectorsTag(sectorAddress, false, 1, tag, out buffer);
/// <inheritdoc />
public ErrorNumber ReadSector(ulong sectorAddress, uint track, out byte[] buffer, out SectorStatus sectorStatus)
{
sectorStatus = SectorStatus.Dumped;
return ReadSectors(sectorAddress, 1, track, out buffer, out _);
}
/// <inheritdoc />
public ErrorNumber ReadSectorTag(ulong sectorAddress, uint track, SectorTagType tag, out byte[] buffer) =>
ReadSectorsTag(sectorAddress, 1, track, tag, out buffer);
/// <inheritdoc />
public ErrorNumber ReadSectors(ulong sectorAddress, bool negative, uint length, out byte[] buffer,
out SectorStatus[] sectorStatus)
{
buffer = null;
sectorStatus = null;
if(negative) return ErrorNumber.NotSupported;
foreach(KeyValuePair<uint, ulong> kvp in from kvp in _offsetMap
where sectorAddress >= kvp.Value
from track in Tracks
where track.Sequence == kvp.Key
where sectorAddress - kvp.Value <
track.EndSector - track.StartSector + 1
select kvp)
return ReadSectors(sectorAddress - kvp.Value, length, kvp.Key, out buffer, out sectorStatus);
return ErrorNumber.SectorNotFound;
}
/// <inheritdoc />
public ErrorNumber ReadSectorsTag(ulong sectorAddress, bool negative, uint length, SectorTagType tag,
out byte[] buffer)
{
buffer = null;
if(negative) return ErrorNumber.NotSupported;
foreach(KeyValuePair<uint, ulong> kvp in from kvp in _offsetMap
where sectorAddress >= kvp.Value
from track in Tracks
where track.Sequence == kvp.Key
where sectorAddress - kvp.Value <
track.EndSector - track.StartSector + 1
select kvp)
return ReadSectorsTag(sectorAddress - kvp.Value, length, kvp.Key, tag, out buffer);
return ErrorNumber.SectorNotFound;
}
/// <inheritdoc />
public ErrorNumber ReadSectors(ulong sectorAddress, uint length, uint track, out byte[] buffer,
out SectorStatus[] sectorStatus)
{
buffer = null;
sectorStatus = null;
Track aaruTrack = Tracks.FirstOrDefault(bwTrack => bwTrack.Sequence == track);
if(aaruTrack is null) return ErrorNumber.SectorNotFound;
if(length + sectorAddress > aaruTrack.EndSector - aaruTrack.StartSector + 1) return ErrorNumber.OutOfRange;
sectorStatus = new SectorStatus[length];
for(uint i = 0; i < length; i++) sectorStatus[i] = SectorStatus.Dumped;
uint sectorOffset;
uint sectorSize;
uint sectorSkip;
var mode2 = false;
switch(aaruTrack.Type)
{
case CommonTypes.Enums.TrackType.CdMode1:
{
sectorOffset = 16;
sectorSize = 2048;
sectorSkip = 288;
break;
}
case CommonTypes.Enums.TrackType.CdMode2Formless:
{
mode2 = true;
sectorOffset = 0;
sectorSize = 2352;
sectorSkip = 0;
break;
}
case CommonTypes.Enums.TrackType.Audio:
{
sectorOffset = 0;
sectorSize = 2352;
sectorSkip = 0;
break;
}
case CommonTypes.Enums.TrackType.Data:
{
sectorOffset = 0;
sectorSize = 2048;
sectorSkip = 0;
break;
}
default:
return ErrorNumber.NotSupported;
}
buffer = new byte[sectorSize * length];
_imageStream = aaruTrack.Filter.GetDataForkStream();
var br = new BinaryReader(_imageStream);
br.BaseStream.Seek((long)aaruTrack.FileOffset +
(long)(sectorAddress * (sectorOffset + sectorSize + sectorSkip)),
SeekOrigin.Begin);
if(mode2)
{
var mode2Ms = new MemoryStream((int)(sectorSize * length));
buffer = br.ReadBytes((int)(sectorSize * length));
for(var i = 0; i < length; i++)
{
var sector = new byte[sectorSize];
Array.Copy(buffer, sectorSize * i, sector, 0, sectorSize);
sector = Sector.GetUserDataFromMode2(sector);
mode2Ms.Write(sector, 0, sector.Length);
}
buffer = mode2Ms.ToArray();
}
else if(sectorOffset == 0 && sectorSkip == 0)
buffer = br.ReadBytes((int)(sectorSize * length));
else
{
for(var i = 0; i < length; i++)
{
br.BaseStream.Seek(sectorOffset, SeekOrigin.Current);
byte[] sector = br.ReadBytes((int)sectorSize);
br.BaseStream.Seek(sectorSkip, SeekOrigin.Current);
Array.Copy(sector, 0, buffer, i * sectorSize, sectorSize);
}
}
return ErrorNumber.NoError;
}
/// <inheritdoc />
public ErrorNumber ReadSectorsTag(ulong sectorAddress, uint length, uint track, SectorTagType tag,
out byte[] buffer)
{
buffer = null;
Track aaruTrack = Tracks.FirstOrDefault(bwTrack => bwTrack.Sequence == track);
if(aaruTrack is null) return ErrorNumber.SectorNotFound;
if(length + sectorAddress > aaruTrack.EndSector - aaruTrack.StartSector + 1) return ErrorNumber.OutOfRange;
uint sectorOffset = 0;
uint sectorSize = 0;
uint sectorSkip = 0;
if(aaruTrack.Type == CommonTypes.Enums.TrackType.Data) return ErrorNumber.NotSupported;
switch(tag)
{
case SectorTagType.CdSectorEcc:
case SectorTagType.CdSectorEccP:
case SectorTagType.CdSectorEccQ:
case SectorTagType.CdSectorEdc:
case SectorTagType.CdSectorHeader:
case SectorTagType.CdSectorSubchannel:
case SectorTagType.CdSectorSubHeader:
case SectorTagType.CdSectorSync:
break;
case SectorTagType.CdTrackFlags:
if(!_trackFlags.TryGetValue((uint)sectorAddress, out byte flag)) return ErrorNumber.NoData;
buffer = [flag];
return ErrorNumber.NoError;
default:
return ErrorNumber.NotSupported;
}
switch(aaruTrack.Type)
{
case CommonTypes.Enums.TrackType.CdMode1:
switch(tag)
{
case SectorTagType.CdSectorSync:
{
sectorOffset = 0;
sectorSize = 12;
sectorSkip = 2340;
break;
}
case SectorTagType.CdSectorHeader:
{
sectorOffset = 12;
sectorSize = 4;
sectorSkip = 2336;
break;
}
case SectorTagType.CdSectorSubHeader:
return ErrorNumber.NotSupported;
case SectorTagType.CdSectorEcc:
{
sectorOffset = 2076;
sectorSize = 276;
sectorSkip = 0;
break;
}
case SectorTagType.CdSectorEccP:
{
sectorOffset = 2076;
sectorSize = 172;
sectorSkip = 104;
break;
}
case SectorTagType.CdSectorEccQ:
{
sectorOffset = 2248;
sectorSize = 104;
sectorSkip = 0;
break;
}
case SectorTagType.CdSectorEdc:
{
sectorOffset = 2064;
sectorSize = 4;
sectorSkip = 284;
break;
}
case SectorTagType.CdSectorSubchannel:
{
sectorOffset = 0;
sectorSize = 96;
sectorSkip = 0;
break;
}
}
break;
case CommonTypes.Enums.TrackType.CdMode2Formless:
{
switch(tag)
{
case SectorTagType.CdSectorSync:
case SectorTagType.CdSectorHeader:
case SectorTagType.CdSectorEcc:
case SectorTagType.CdSectorEccP:
case SectorTagType.CdSectorEccQ:
return ErrorNumber.NotSupported;
case SectorTagType.CdSectorSubHeader:
{
sectorOffset = 0;
sectorSize = 8;
sectorSkip = 2328;
break;
}
case SectorTagType.CdSectorEdc:
{
sectorOffset = 2332;
sectorSize = 4;
sectorSkip = 0;
break;
}
case SectorTagType.CdSectorSubchannel:
{
sectorOffset = 0;
sectorSize = 96;
sectorSkip = 0;
break;
}
}
break;
}
case CommonTypes.Enums.TrackType.Audio:
{
switch(tag)
{
case SectorTagType.CdSectorSubchannel:
{
sectorOffset = 0;
sectorSize = 96;
sectorSkip = 0;
break;
}
default:
return ErrorNumber.NotSupported;
}
break;
}
default:
return ErrorNumber.NotSupported;
}
buffer = new byte[sectorSize * length];
_imageStream = tag == SectorTagType.CdSectorSubchannel
? aaruTrack.SubchannelFilter.GetDataForkStream()
: aaruTrack.Filter.GetDataForkStream();
var br = new BinaryReader(_imageStream);
br.BaseStream.Seek((long)(tag == SectorTagType.CdSectorSubchannel
? aaruTrack.SubchannelOffset
: aaruTrack.FileOffset) +
(long)(sectorAddress * (sectorOffset + sectorSize + sectorSkip)),
SeekOrigin.Begin);
if(sectorOffset == 0 && sectorSkip == 0)
buffer = br.ReadBytes((int)(sectorSize * length));
else
{
for(var i = 0; i < length; i++)
{
br.BaseStream.Seek(sectorOffset, SeekOrigin.Current);
byte[] sector = br.ReadBytes((int)sectorSize);
br.BaseStream.Seek(sectorSkip, SeekOrigin.Current);
Array.Copy(sector, 0, buffer, i * sectorSize, sectorSize);
}
}
if(tag == SectorTagType.CdSectorSubchannel) buffer = Subchannel.Interleave(buffer);
return ErrorNumber.NoError;
}
/// <inheritdoc />
public ErrorNumber ReadSectorLong(ulong sectorAddress, bool negative, out byte[] buffer,
out SectorStatus sectorStatus)
{
buffer = null;
sectorStatus = SectorStatus.Dumped;
if(negative) return ErrorNumber.NotSupported;
return ReadSectorsLong(sectorAddress, false, 1, out buffer, out _);
}
/// <inheritdoc />
public ErrorNumber ReadSectorLong(ulong sectorAddress, uint track, out byte[] buffer, out SectorStatus sectorStatus)
{
sectorStatus = SectorStatus.Dumped;
return ReadSectorsLong(sectorAddress, 1, track, out buffer, out _);
}
/// <inheritdoc />
public ErrorNumber ReadSectorsLong(ulong sectorAddress, bool negative, uint length, out byte[] buffer,
out SectorStatus[] sectorStatus)
{
buffer = null;
sectorStatus = null;
if(negative) return ErrorNumber.NotSupported;
foreach(KeyValuePair<uint, ulong> kvp in from kvp in _offsetMap
where sectorAddress >= kvp.Value
from track in Tracks
where track.Sequence == kvp.Key
where sectorAddress - kvp.Value <
track.EndSector - track.StartSector + 1
select kvp)
return ReadSectorsLong(sectorAddress - kvp.Value, length, kvp.Key, out buffer, out sectorStatus);
return ErrorNumber.SectorNotFound;
}
/// <inheritdoc />
public ErrorNumber ReadSectorsLong(ulong sectorAddress, uint length, uint track, out byte[] buffer,
out SectorStatus[] sectorStatus)
{
buffer = null;
sectorStatus = null;
Track aaruTrack = Tracks.FirstOrDefault(bwTrack => bwTrack.Sequence == track);
if(aaruTrack is null) return ErrorNumber.SectorNotFound;
if(length + sectorAddress > aaruTrack.EndSector - aaruTrack.StartSector + 1) return ErrorNumber.OutOfRange;
sectorStatus = new SectorStatus[length];
for(uint i = 0; i < length; i++) sectorStatus[i] = SectorStatus.Dumped;
uint sectorSize;
switch(aaruTrack.Type)
{
case CommonTypes.Enums.TrackType.Audio:
case CommonTypes.Enums.TrackType.CdMode1:
case CommonTypes.Enums.TrackType.CdMode2Formless:
case CommonTypes.Enums.TrackType.Data:
{
sectorSize = (uint)aaruTrack.RawBytesPerSector;
break;
}
default:
return ErrorNumber.NotSupported;
}
_imageStream = aaruTrack.Filter.GetDataForkStream();
var br = new BinaryReader(_imageStream);
br.BaseStream.Seek((long)aaruTrack.FileOffset + (long)(sectorAddress * sectorSize), SeekOrigin.Begin);
buffer = br.ReadBytes((int)(sectorSize * length));
return ErrorNumber.NoError;
}
/// <inheritdoc />
public List<Track> GetSessionTracks(Session session) =>
Sessions.Contains(session) ? GetSessionTracks(session.Sequence) : null;
/// <inheritdoc />
public List<Track> GetSessionTracks(ushort session) => Tracks.Where(track => track.Session == session).ToList();
#endregion
}
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