aaru-dps/Aaru
1
0
Fork 0
mirror of https://github.com/aaru-dps/Aaru.git synced 2025-12-16 19:24:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

Refactor image classes and split them to smaller files.

Browse Source
This commit is contained in:
Natalia Portillo
2018-07-23 23:25:43 +01:00
parent 55ca2d23b6
commit ed88989642
445 changed files with 50086 additions and 34342 deletions
Download Patch File Download Diff File Expand all files Collapse all files

162
DiscImageChef.DiscImages/DiscFerret/Read.cs Normal file
View File

@@ -0,0 +1,162 @@
// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename : Read.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Disk image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
// Reads DiscFerret flux 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 © 2011-2018 Natalia Portillo
// ****************************************************************************/
using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using DiscImageChef.CommonTypes.Enums;
using DiscImageChef.CommonTypes.Interfaces;
using DiscImageChef.Console;
namespace DiscImageChef.DiscImages
{
public partial class DiscFerret
{
public bool Open(IFilter imageFilter)
{
byte[] magicB = new byte[4];
Stream stream = imageFilter.GetDataForkStream();
stream.Read(magicB, 0, 4);
uint magic = BitConverter.ToUInt32(magicB, 0);
if(magic != DFI_MAGIC && magic != DFI_MAGIC2) return false;
TrackOffsets = new SortedDictionary<int, long>();
TrackLengths = new SortedDictionary<int, long>();
int t = -1;
ushort lastCylinder = 0, lastHead = 0;
long offset = 0;
while(stream.Position < stream.Length)
{
long thisOffset = stream.Position;
DfiBlockHeader blockHeader = new DfiBlockHeader();
byte[] blk = new byte[Marshal.SizeOf(blockHeader)];
stream.Read(blk, 0, Marshal.SizeOf(blockHeader));
blockHeader = BigEndianMarshal.ByteArrayToStructureBigEndian<DfiBlockHeader>(blk);
DicConsole.DebugWriteLine("DiscFerret plugin", "block@{0}.cylinder = {1}", thisOffset,
blockHeader.cylinder);
DicConsole.DebugWriteLine("DiscFerret plugin", "block@{0}.head = {1}", thisOffset, blockHeader.head);
DicConsole.DebugWriteLine("DiscFerret plugin", "block@{0}.sector = {1}", thisOffset,
blockHeader.sector);
DicConsole.DebugWriteLine("DiscFerret plugin", "block@{0}.length = {1}", thisOffset,
blockHeader.length);
if(stream.Position + blockHeader.length > stream.Length)
{
DicConsole.DebugWriteLine("DiscFerret plugin", "Invalid track block found at {0}", thisOffset);
break;
}
stream.Position += blockHeader.length;
if(blockHeader.cylinder > 0 && blockHeader.cylinder > lastCylinder)
{
lastCylinder = blockHeader.cylinder;
lastHead = 0;
TrackOffsets.Add(t, offset);
TrackLengths.Add(t, thisOffset - offset + 1);
offset = thisOffset;
t++;
}
else if(blockHeader.head > 0 && blockHeader.head > lastHead)
{
lastHead = blockHeader.head;
TrackOffsets.Add(t, offset);
TrackLengths.Add(t, thisOffset - offset + 1);
offset = thisOffset;
t++;
}
if(blockHeader.cylinder > imageInfo.Cylinders) imageInfo.Cylinders = blockHeader.cylinder;
if(blockHeader.head > imageInfo.Heads) imageInfo.Heads = blockHeader.head;
}
imageInfo.Heads++;
imageInfo.Cylinders++;
imageInfo.Application = "DiscFerret";
imageInfo.ApplicationVersion = magic == DFI_MAGIC2 ? "2.0" : "1.0";
throw new NotImplementedException("Flux decoding is not yet implemented.");
}
public byte[] ReadDiskTag(MediaTagType tag)
{
throw new NotImplementedException("Flux decoding is not yet implemented.");
}
public byte[] ReadSector(ulong sectorAddress)
{
return ReadSectors(sectorAddress, 1);
}
public byte[] ReadSectorTag(ulong sectorAddress, SectorTagType tag)
{
throw new NotImplementedException("Flux decoding is not yet implemented.");
}
public byte[] ReadSectors(ulong sectorAddress, uint length)
{
throw new NotImplementedException("Flux decoding is not yet implemented.");
}
public byte[] ReadSectorsTag(ulong sectorAddress, uint length, SectorTagType tag)
{
throw new NotImplementedException("Flux decoding is not yet implemented.");
}
public byte[] ReadSectorLong(ulong sectorAddress)
{
throw new NotImplementedException("Flux decoding is not yet implemented.");
}
public byte[] ReadSectorsLong(ulong sectorAddress, uint length)
{
throw new NotImplementedException("Flux decoding is not yet implemented.");
}
public bool? VerifySector(ulong sectorAddress)
{
throw new NotImplementedException("Flux decoding is not yet implemented.");
}
public bool? VerifySectors(ulong sectorAddress, uint length, out List<ulong> failingLbas,
out List<ulong> unknownLbas)
{
throw new NotImplementedException("Flux decoding is not yet implemented.");
}
}
}