Add PC-FX executable plugin.

This commit is contained in:
2018-02-08 21:13:23 +00:00
parent bcf016f49a
commit e43ef1bf04
3 changed files with 153 additions and 1 deletions

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@@ -43,6 +43,7 @@
<ItemGroup>
<Compile Include="HPOFS.cs" />
<Compile Include="IReadOnlyFilesystem.cs" />
<Compile Include="PCFX.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
<Compile Include="AmigaDOS.cs" />
<Compile Include="AppleHFS.cs" />

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@@ -0,0 +1,150 @@
// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename : PCEngine.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : NEC PC-FX plugin.
//
// --[ Description ] ----------------------------------------------------------
//
// Identifies the NEC PC-FX track header and shows information.
//
// --[ 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.Runtime.InteropServices;
using System.Text;
using DiscImageChef.CommonTypes;
using DiscImageChef.DiscImages;
using Schemas;
namespace DiscImageChef.Filesystems
{
// Not a filesystem, more like an executable header
public class PCFX : IFilesystem
{
const string IDENTIFIER = "PC-FX:Hu_CD-ROM ";
public FileSystemType XmlFsType { get; private set; }
public Encoding Encoding { get; private set; }
public string Name => "PC-FX Plugin";
public Guid Id => new Guid("8BC27CCE-D9E9-48F8-BA93-C66A86EB565A");
public bool Identify(IMediaImage imagePlugin, Partition partition)
{
if(2 + partition.Start >= partition.End ||
imagePlugin.Info.XmlMediaType != XmlMediaType.OpticalDisc) return false;
byte[] sector = imagePlugin.ReadSectors(partition.Start, 2);
Encoding encoding = Encoding.GetEncoding("shift_jis");
return encoding.GetString(sector, 0, 16) == IDENTIFIER;
}
public void GetInformation(IMediaImage imagePlugin, Partition partition, out string information,
Encoding encoding)
{
// Always Shift-JIS
Encoding = Encoding.GetEncoding("shift_jis");
information = "";
byte[] sector = imagePlugin.ReadSectors(partition.Start, 2);
PcfxHeader header = new PcfxHeader();
IntPtr sbPtr = Marshal.AllocHGlobal(Marshal.SizeOf(header));
Marshal.Copy(sector, 0, sbPtr, Marshal.SizeOf(header));
header = (PcfxHeader)Marshal.PtrToStructure(sbPtr, typeof(PcfxHeader));
Marshal.FreeHGlobal(sbPtr);
string date;
DateTime dateTime = DateTime.MinValue;
try
{
date = Encoding.GetString(header.date);
int year = int.Parse(date.Substring(0, 4));
int month = int.Parse(date.Substring(4, 2));
int day = int.Parse(date.Substring(6, 2));
dateTime = new DateTime(year, month, day);
}
catch { date = null; }
StringBuilder sb = new StringBuilder();
sb.AppendLine("PC-FX executable:");
sb.AppendFormat("Identifier: {0}", StringHandlers.CToString(header.signature, Encoding)).AppendLine();
sb.AppendFormat("Copyright: {0}", StringHandlers.CToString(header.copyright, Encoding)).AppendLine();
sb.AppendFormat("Title: {0}", StringHandlers.CToString(header.title, Encoding)).AppendLine();
sb.AppendFormat("Maker ID: {0}", StringHandlers.CToString(header.makerId, Encoding)).AppendLine();
sb.AppendFormat("Maker name: {0}", StringHandlers.CToString(header.makerName, Encoding)).AppendLine();
sb.AppendFormat("Volume number: {0}", header.volumeNumber).AppendLine();
sb.AppendFormat("Country code: {0}", header.country).AppendLine();
sb.AppendFormat("Version: {0}.{1}", header.minorVersion, header.majorVersion)
.AppendLine();
if(date != null) sb.AppendFormat("Dated {0}", dateTime).AppendLine();
sb.AppendFormat("Load {0} sectors from sector {1}", header.loadCount, header.loadOffset)
.AppendLine();
sb.AppendFormat("Load at 0x{0:X8} and jump to 0x{1:X8}", header.loadAddress, header.entryPoint)
.AppendLine();
information = sb.ToString();
XmlFsType = new FileSystemType
{
Type = "PC-FX",
Clusters = (long)partition.Length,
ClusterSize = 2048,
Bootable = true,
CreationDate = dateTime,
CreationDateSpecified = date != null,
PublisherIdentifier = StringHandlers.CToString(header.makerName, Encoding),
VolumeName = StringHandlers.CToString(header.title, Encoding),
SystemIdentifier = "PC-FX"
};
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct PcfxHeader
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
public byte[] signature;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0xE0)]
public byte[] copyright;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x710)]
public byte[] unknown;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
public byte[] title;
public uint loadOffset;
public uint loadCount;
public uint loadAddress;
public uint entryPoint;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public byte[] makerId;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 60)]
public byte[] makerName;
public uint volumeNumber;
public byte majorVersion;
public byte minorVersion;
public ushort country;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public byte[] date;
}
}
}

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@@ -181,7 +181,8 @@ Supported file systems for identification and information only
* Microsoft/IBM High Performance File System (HPFS)
* Minix v2 file system
* Minix v3 file system
* NEC PC-Engine file system
* NEC PC-Engine executable
* NEC PC-FX executable
* NILFS2
* OS-9 Random Block File
* Professional File System