Added support for Virtual98 disk images.

This commit is contained in:
2017-08-03 11:11:13 +01:00
parent bbc3d3f53b
commit 986aba87b0
3 changed files with 63 additions and 52 deletions

View File

@@ -85,6 +85,8 @@
<Compile Include="D88.cs" />
<Compile Include="Anex86.cs" />
<Compile Include="T98.cs" />
<Compile Include="NHDr0.cs" />
<Compile Include="Virtual98.cs" />
</ItemGroup>
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
<ItemGroup>
@@ -133,7 +135,7 @@
<inheritsSet />
<inheritsScope />
</TextStylePolicy>
<CSharpFormattingPolicy IndentBlock="True" IndentBraces="False" IndentSwitchSection="True" IndentSwitchCaseSection="True" LabelPositioning="OneLess" NewLinesForBracesInTypes="True" NewLinesForBracesInMethods="True" NewLinesForBracesInProperties="True" NewLinesForBracesInAccessors="True" NewLinesForBracesInAnonymousMethods="True" NewLinesForBracesInControlBlocks="True" NewLinesForBracesInAnonymousTypes="True" NewLinesForBracesInObjectCollectionArrayInitializers="True" NewLinesForBracesInLambdaExpressionBody="True" NewLineForElse="True" NewLineForCatch="True" NewLineForFinally="True" SpacingAfterMethodDeclarationName="False" SpaceWithinMethodDeclarationParenthesis="False" SpaceBetweenEmptyMethodDeclarationParentheses="False" SpaceAfterMethodCallName="False" SpaceWithinMethodCallParentheses="False" SpaceBetweenEmptyMethodCallParentheses="False" SpaceAfterControlFlowStatementKeyword="False" SpaceWithinExpressionParentheses="False" SpaceWithinCastParentheses="False" SpaceWithinOtherParentheses="False" SpaceAfterCast="False" SpacesIgnoreAroundVariableDeclaration="False" SpaceBeforeOpenSquareBracket="False" SpaceBetweenEmptySquareBrackets="False" SpaceWithinSquareBrackets="False" SpaceAfterColonInBaseTypeDeclaration="True" SpaceAfterComma="True" SpaceAfterDot="False" SpaceAfterSemicolonsInForStatement="True" SpaceBeforeColonInBaseTypeDeclaration="True" SpaceBeforeComma="False" SpaceBeforeDot="False" SpaceBeforeSemicolonsInForStatement="False" SpacingAroundBinaryOperator="Single" WrappingPreserveSingleLine="True" WrappingKeepStatementsOnSingleLine="True" PlaceSystemDirectiveFirst="True" NewLineForMembersInObjectInit="False" NewLineForMembersInAnonymousTypes="False" NewLineForClausesInQuery="False" scope="text/x-csharp">
<CSharpFormattingPolicy IndentBlock="True" IndentBraces="False" IndentSwitchSection="True" IndentSwitchCaseSection="True" LabelPositioning="OneLess" NewLinesForBracesInTypes="True" NewLinesForBracesInMethods="True" NewLinesForBracesInProperties="True" NewLinesForBracesInAccessors="True" NewLinesForBracesInAnonymousMethods="True" NewLinesForBracesInControlBlocks="True" NewLinesForBracesInAnonymousTypes="True" NewLinesForBracesInObjectCollectionArrayInitializers="True" NewLinesForBracesInLambdaExpressionBody="True" NewLineForElse="True" NewLineForCatch="True" NewLineForFinally="True" NewLineForMembersInObjectInit="False" NewLineForMembersInAnonymousTypes="False" NewLineForClausesInQuery="False" SpacingAfterMethodDeclarationName="False" SpaceWithinMethodDeclarationParenthesis="False" SpaceBetweenEmptyMethodDeclarationParentheses="False" SpaceAfterMethodCallName="False" SpaceWithinMethodCallParentheses="False" SpaceBetweenEmptyMethodCallParentheses="False" SpaceAfterControlFlowStatementKeyword="False" SpaceWithinExpressionParentheses="False" SpaceWithinCastParentheses="False" SpaceWithinOtherParentheses="False" SpaceAfterCast="False" SpacesIgnoreAroundVariableDeclaration="False" SpaceBeforeOpenSquareBracket="False" SpaceBetweenEmptySquareBrackets="False" SpaceWithinSquareBrackets="False" SpaceAfterColonInBaseTypeDeclaration="True" SpaceAfterComma="True" SpaceAfterDot="False" SpaceAfterSemicolonsInForStatement="True" SpaceBeforeColonInBaseTypeDeclaration="True" SpaceBeforeComma="False" SpaceBeforeDot="False" SpaceBeforeSemicolonsInForStatement="False" SpacingAroundBinaryOperator="Single" WrappingPreserveSingleLine="True" WrappingKeepStatementsOnSingleLine="True" PlaceSystemDirectiveFirst="True" scope="text/x-csharp">
<inheritsSet />
<inheritsScope />
</CSharpFormattingPolicy>

View File

@@ -2,7 +2,7 @@
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename : NHDr0.cs
// Filename : Virtual98.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Component
@@ -42,36 +42,35 @@ using DiscImageChef.Decoders.Floppy;
namespace DiscImageChef.ImagePlugins
{
// Info from http://www.geocities.jp/t98next/nhdr0.txt
public class NHDr0 : ImagePlugin
// Info from Neko Project II emulator
public class Virtual98 : ImagePlugin
{
#region Internal structures
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct NHDr0Header
struct Virtual98Header
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 15)]
public byte[] szFileID;
public byte reserved1;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x100)]
public byte[] szComment;
public int dwHeadSize;
public int dwCylinder;
public short wHead;
public short wSect;
public short wSectLen;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public byte[] reserved2;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0xE0)]
public byte[] reserved3;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
public byte[] signature;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 128)]
public byte[] comment;
public uint padding;
public ushort mbsize;
public ushort sectorsize;
public byte sectors;
public byte surfaces;
public ushort cylinders;
public uint totals;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x44)]
public byte[] padding2;
}
#endregion
readonly byte[] signature = { 0x54, 0x39, 0x38, 0x48, 0x44, 0x44, 0x49, 0x4D, 0x41, 0x47, 0x45, 0x2E, 0x52, 0x30, 0x00 };
readonly byte[] signature = { 0x56, 0x48, 0x44, 0x31, 0x2E, 0x30, 0x30, 0x00 };
public NHDr0()
public Virtual98()
{
Name = "T98-Next NHD r0 Disk Image";
PluginUUID = new Guid("0410003E-6E7B-40E6-9328-BA5651ADF6B7");
Name = "Virtual98 Disk Image";
PluginUUID = new Guid("C0CDE13D-04D0-4913-8740-AFAA44D0A107");
ImageInfo = new ImageInfo()
{
readableSectorTags = new List<SectorTagType>(),
@@ -97,7 +96,7 @@ namespace DiscImageChef.ImagePlugins
};
}
NHDr0Header nhdhdr;
Virtual98Header v98hdr;
Filter nhdImageFilter;
public override bool IdentifyImage(Filter imageFilter)
@@ -107,29 +106,30 @@ namespace DiscImageChef.ImagePlugins
// Even if comment is supposedly ASCII, I'm pretty sure most emulators allow Shift-JIS to be used :p
Encoding shiftjis = Encoding.GetEncoding("shift_jis");
nhdhdr = new NHDr0Header();
v98hdr = new Virtual98Header();
if(stream.Length < Marshal.SizeOf(nhdhdr))
if(stream.Length < Marshal.SizeOf(v98hdr))
return false;
byte[] hdr_b = new byte[Marshal.SizeOf(nhdhdr)];
byte[] hdr_b = new byte[Marshal.SizeOf(v98hdr)];
stream.Read(hdr_b, 0, hdr_b.Length);
GCHandle handle = GCHandle.Alloc(hdr_b, GCHandleType.Pinned);
nhdhdr = (NHDr0Header)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(NHDr0Header));
v98hdr = (Virtual98Header)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(Virtual98Header));
handle.Free();
if(!nhdhdr.szFileID.SequenceEqual(signature))
if(!v98hdr.signature.SequenceEqual(signature))
return false;
DicConsole.DebugWriteLine("NHDr0 plugin", "fdihdr.szFileID = \"{0}\"", StringHandlers.CToString(nhdhdr.szFileID, shiftjis));
DicConsole.DebugWriteLine("NHDr0 plugin", "fdihdr.reserved1 = {0}", nhdhdr.reserved1);
DicConsole.DebugWriteLine("NHDr0 plugin", "fdihdr.szComment = \"{0}\"", StringHandlers.CToString(nhdhdr.szComment, shiftjis));
DicConsole.DebugWriteLine("NHDr0 plugin", "fdihdr.dwHeadSize = {0}", nhdhdr.dwHeadSize);
DicConsole.DebugWriteLine("NHDr0 plugin", "fdihdr.dwCylinder = {0}", nhdhdr.dwCylinder);
DicConsole.DebugWriteLine("NHDr0 plugin", "fdihdr.wHead = {0}", nhdhdr.wHead);
DicConsole.DebugWriteLine("NHDr0 plugin", "fdihdr.wSect = {0}", nhdhdr.wSect);
DicConsole.DebugWriteLine("NHDr0 plugin", "fdihdr.wSectLen = {0}", nhdhdr.wSectLen);
DicConsole.DebugWriteLine("Virtual98 plugin", "v98hdr.signature = \"{0}\"", StringHandlers.CToString(v98hdr.signature, shiftjis));
DicConsole.DebugWriteLine("Virtual98 plugin", "v98hdr.comment = \"{0}\"", StringHandlers.CToString(v98hdr.comment, shiftjis));
DicConsole.DebugWriteLine("Virtual98 plugin", "v98hdr.padding = {0}", v98hdr.padding);
DicConsole.DebugWriteLine("Virtual98 plugin", "v98hdr.mbsize = {0}", v98hdr.mbsize);
DicConsole.DebugWriteLine("Virtual98 plugin", "v98hdr.sectorsize = {0}", v98hdr.sectorsize);
DicConsole.DebugWriteLine("Virtual98 plugin", "v98hdr.sectors = {0}", v98hdr.sectors);
DicConsole.DebugWriteLine("Virtual98 plugin", "v98hdr.surfaces = {0}", v98hdr.surfaces);
DicConsole.DebugWriteLine("Virtual98 plugin", "v98hdr.cylinders = {0}", v98hdr.cylinders);
DicConsole.DebugWriteLine("Virtual98 plugin", "v98hdr.totals = {0}", v98hdr.totals);
return true;
}
@@ -141,32 +141,31 @@ namespace DiscImageChef.ImagePlugins
// Even if comment is supposedly ASCII, I'm pretty sure most emulators allow Shift-JIS to be used :p
Encoding shiftjis = Encoding.GetEncoding("shift_jis");
nhdhdr = new NHDr0Header();
v98hdr = new Virtual98Header();
if(stream.Length < Marshal.SizeOf(nhdhdr))
if(stream.Length < Marshal.SizeOf(v98hdr))
return false;
byte[] hdr_b = new byte[Marshal.SizeOf(nhdhdr)];
byte[] hdr_b = new byte[Marshal.SizeOf(v98hdr)];
stream.Read(hdr_b, 0, hdr_b.Length);
GCHandle handle = GCHandle.Alloc(hdr_b, GCHandleType.Pinned);
nhdhdr = (NHDr0Header)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(NHDr0Header));
v98hdr = (Virtual98Header)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(Virtual98Header));
handle.Free();
ImageInfo.mediaType = MediaType.GENERIC_HDD;
ImageInfo.imageSize = (ulong)(stream.Length - nhdhdr.dwHeadSize);
ImageInfo.imageSize = (ulong)(stream.Length - 0xDC);
ImageInfo.imageCreationTime = imageFilter.GetCreationTime();
ImageInfo.imageLastModificationTime = imageFilter.GetLastWriteTime();
ImageInfo.imageName = Path.GetFileNameWithoutExtension(imageFilter.GetFilename());
ImageInfo.sectors = (ulong)(nhdhdr.dwCylinder * nhdhdr.wHead * nhdhdr.wSect);
ImageInfo.sectors = v98hdr.totals;
ImageInfo.xmlMediaType = XmlMediaType.BlockMedia;
ImageInfo.sectorSize = (uint)nhdhdr.wSectLen;
ImageInfo.cylinders = (uint)nhdhdr.dwCylinder;
ImageInfo.heads = (uint)nhdhdr.wHead;
ImageInfo.sectorsPerTrack = (uint)nhdhdr.wSect;
ImageInfo.imageComments = StringHandlers.CToString(nhdhdr.szComment, shiftjis);
ImageInfo.sectorSize = v98hdr.sectorsize;
ImageInfo.cylinders = v98hdr.cylinders;
ImageInfo.heads = v98hdr.surfaces;
ImageInfo.sectorsPerTrack = v98hdr.sectors;
ImageInfo.imageComments = StringHandlers.CToString(v98hdr.comment, shiftjis);
nhdImageFilter = imageFilter;
@@ -195,7 +194,7 @@ namespace DiscImageChef.ImagePlugins
public override string GetImageFormat()
{
return "NHDr0 disk image";
return "Virtual98 disk image";
}
public override string GetImageVersion()
@@ -260,9 +259,18 @@ namespace DiscImageChef.ImagePlugins
Stream stream = nhdImageFilter.GetDataForkStream();
stream.Seek((long)((ulong)nhdhdr.dwHeadSize + sectorAddress * ImageInfo.sectorSize), SeekOrigin.Begin);
// V98 are lazy allocated
if((long)(0xDC + sectorAddress * ImageInfo.sectorSize) >= stream.Length)
return buffer;
stream.Read(buffer, 0, (int)(length * ImageInfo.sectorSize));
stream.Seek((long)(0xDC + sectorAddress * ImageInfo.sectorSize), SeekOrigin.Begin);
int toRead = (int)(length * ImageInfo.sectorSize);
if(toRead + stream.Position > stream.Length)
toRead = (int)(stream.Length - stream.Position);
stream.Read(buffer, 0, toRead);
return buffer;
}

View File

@@ -63,6 +63,7 @@ Supported disk image formats
* T98-Next hard disk images (.NHD)
* TeleDisk (without compression)
* VMware VMDK and COWD images
* Virtual98 disk images
* Virtual PC fixed size, dynamic size and differencing (undo) disk images
* VirtualBox Disk Image (VDI)
* X68k DIM disk image files (.DIM)