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

111
DiscImageChef.DiscImages/CisCopy/Identify.cs Normal file
View File

@@ -0,0 +1,111 @@
// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename : Identify.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Disk image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
// Identifies CisCopy disk 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.IO;
using DiscImageChef.CommonTypes.Interfaces;
namespace DiscImageChef.DiscImages
{
public partial class CisCopy
{
public bool Identify(IFilter imageFilter)
{
Stream stream = imageFilter.GetDataForkStream();
stream.Seek(0, SeekOrigin.Begin);
DiskType type = (DiskType)stream.ReadByte();
byte tracks;
switch(type)
{
case DiskType.MD1DD8:
case DiskType.MD1DD:
case DiskType.MD2DD8:
case DiskType.MD2DD:
tracks = 80;
break;
case DiskType.MF2DD:
case DiskType.MD2HD:
case DiskType.MF2HD:
tracks = 160;
break;
default: return false;
}
byte[] trackBytes = new byte[tracks];
stream.Read(trackBytes, 0, tracks);
for(int i = 0; i < tracks; i++)
if(trackBytes[i] != (byte)TrackType.Copied && trackBytes[i] != (byte)TrackType.Omitted &&
trackBytes[i] != (byte)TrackType.OmittedAlternate)
return false;
Compression cmpr = (Compression)stream.ReadByte();
if(cmpr != Compression.None && cmpr != Compression.Normal && cmpr != Compression.High) return false;
switch(type)
{
case DiskType.MD1DD8:
if(stream.Length > 40 * 1 * 8 * 512 + 82) return false;
break;
case DiskType.MD1DD:
if(stream.Length > 40 * 1 * 9 * 512 + 82) return false;
break;
case DiskType.MD2DD8:
if(stream.Length > 40 * 2 * 8 * 512 + 82) return false;
break;
case DiskType.MD2DD:
if(stream.Length > 40 * 2 * 9 * 512 + 82) return false;
break;
case DiskType.MF2DD:
if(stream.Length > 80 * 2 * 9 * 512 + 162) return false;
break;
case DiskType.MD2HD:
if(stream.Length > 80 * 2 * 15 * 512 + 162) return false;
break;
case DiskType.MF2HD:
if(stream.Length > 80 * 2 * 18 * 512 + 162) return false;
break;
}
return true;
}
}
}