public bool Identify(IFilter imageFilter)
{
Stream stream = imageFilter.GetDataForkStream();
if (stream.Length < Marshal.SizeOf <RayHdr>())
{
return(false);
}
byte[] buffer = new byte[Marshal.SizeOf <RayHdr>()];
stream.Seek(0, SeekOrigin.Begin);
stream.Read(buffer, 0, buffer.Length);
RayHdr header = Marshal.ByteArrayToStructureLittleEndian <RayHdr>(buffer);
string signature = StringHandlers.CToString(header.signature);
DicConsole.DebugWriteLine("Ray Arachelian's Disk IMage plugin", "header.signature = {0}", signature);
DicConsole.DebugWriteLine("Ray Arachelian's Disk IMage plugin", "header.diskType = {0}", header.diskType);
DicConsole.DebugWriteLine("Ray Arachelian's Disk IMage plugin", "header.heads = {0}", header.heads);
DicConsole.DebugWriteLine("Ray Arachelian's Disk IMage plugin", "header.cylinders = {0}", header.cylinders);
DicConsole.DebugWriteLine("Ray Arachelian's Disk IMage plugin", "header.sectorsPerTrack = {0}",
header.sectorsPerTrack);
Regex sx = new Regex(REGEX_SIGNATURE);
Match sm = sx.Match(signature);
DicConsole.DebugWriteLine("Ray Arachelian's Disk IMage plugin", "header.signature matches? = {0}",
sm.Success);
return(sm.Success);
}
public bool Close()
{
if (!IsWriting)
{
ErrorMessage = "Image is not opened for writing";
return(false);
}
string headerSignature =
$"Disk IMage VER 1.0 Copyright (C) {DateTime.Now.Year:D4} Ray Arachelian, All Rights Reserved. Aaru ";
var header = new RayHdr
{
signature = Encoding.ASCII.GetBytes(headerSignature),
cylinders = (byte)_imageInfo.Cylinders,
diskType = RayDiskTypes.Mf2ed,
heads = (byte)_imageInfo.Heads,
sectorsPerTrack = (byte)_imageInfo.SectorsPerTrack
};
header.signature[0x4A] = 0x00;
byte[] hdr = new byte[Marshal.SizeOf <RayHdr>()];
IntPtr hdrPtr = System.Runtime.InteropServices.Marshal.AllocHGlobal(Marshal.SizeOf <RayHdr>());
System.Runtime.InteropServices.Marshal.StructureToPtr(header, hdrPtr, true);
System.Runtime.InteropServices.Marshal.Copy(hdrPtr, hdr, 0, hdr.Length);
System.Runtime.InteropServices.Marshal.FreeHGlobal(hdrPtr);
_writingStream.Seek(0, SeekOrigin.Begin);
_writingStream.Write(hdr, 0, hdr.Length);
_writingStream.Flush();
_writingStream.Close();
IsWriting = false;
ErrorMessage = "";
return(true);
}
public bool Identify(IFilter imageFilter)
{
Stream stream = imageFilter.GetDataForkStream();
if (stream.Length < Marshal.SizeOf(typeof(RayHdr)))
{
return(false);
}
byte[] buffer = new byte[Marshal.SizeOf(typeof(RayHdr))];
stream.Seek(0, SeekOrigin.Begin);
stream.Read(buffer, 0, buffer.Length);
IntPtr ftrPtr = Marshal.AllocHGlobal(buffer.Length);
Marshal.Copy(buffer, 0, ftrPtr, buffer.Length);
RayHdr header = (RayHdr)Marshal.PtrToStructure(ftrPtr, typeof(RayHdr));
Marshal.FreeHGlobal(ftrPtr);
string signature = StringHandlers.CToString(header.signature);
DicConsole.DebugWriteLine("Ray Arachelian's Disk IMage plugin", "header.signature = {0}", signature);
DicConsole.DebugWriteLine("Ray Arachelian's Disk IMage plugin", "header.diskType = {0}", header.diskType);
DicConsole.DebugWriteLine("Ray Arachelian's Disk IMage plugin", "header.heads = {0}", header.heads);
DicConsole.DebugWriteLine("Ray Arachelian's Disk IMage plugin", "header.cylinders = {0}", header.cylinders);
DicConsole.DebugWriteLine("Ray Arachelian's Disk IMage plugin", "header.sectorsPerTrack = {0}",
header.sectorsPerTrack);
Regex sx = new Regex(REGEX_SIGNATURE);
Match sm = sx.Match(signature);
DicConsole.DebugWriteLine("Ray Arachelian's Disk IMage plugin", "header.signature matches? = {0}",
sm.Success);
return(sm.Success);
}
public bool Open(IFilter imageFilter)
{
Stream stream = imageFilter.GetDataForkStream();
if (stream.Length < Marshal.SizeOf <RayHdr>())
{
return(false);
}
byte[] buffer = new byte[Marshal.SizeOf <RayHdr>()];
stream.Seek(0, SeekOrigin.Begin);
stream.Read(buffer, 0, buffer.Length);
RayHdr header = Marshal.ByteArrayToStructureLittleEndian <RayHdr>(buffer);
string signature = StringHandlers.CToString(header.signature);
Regex sx = new Regex(REGEX_SIGNATURE);
Match sm = sx.Match(signature);
if (!sm.Success)
{
return(false);
}
imageInfo.ApplicationVersion = $"{sm.Groups["major"].Value}.{sm.Groups["minor"].Value}";
imageInfo.Cylinders = (uint)(header.cylinders + 1);
imageInfo.Heads = (uint)(header.heads + 1);
imageInfo.SectorsPerTrack = header.sectorsPerTrack;
imageInfo.Sectors = imageInfo.Cylinders * imageInfo.Heads * imageInfo.SectorsPerTrack;
imageInfo.SectorSize = 512;
byte[] sectors = new byte[imageInfo.SectorsPerTrack * imageInfo.SectorSize];
disk = new MemoryStream();
for (int i = 0; i < imageInfo.SectorsPerTrack * imageInfo.SectorSize; i++)
{
stream.Read(sectors, 0, sectors.Length);
stream.Seek(imageInfo.SectorsPerTrack, SeekOrigin.Current);
disk.Write(sectors, 0, sectors.Length);
}
imageInfo.MediaType = Geometry.GetMediaType(((ushort)imageInfo.Cylinders, (byte)imageInfo.Heads,
(ushort)imageInfo.SectorsPerTrack, 512, MediaEncoding.MFM,
false));
switch (imageInfo.MediaType)
{
case MediaType.NEC_525_HD
when header.diskType == RayDiskTypes.Mf2hd || header.diskType == RayDiskTypes.Mf2ed:
imageInfo.MediaType = MediaType.NEC_35_HD_8;
break;
case MediaType.DOS_525_HD
when header.diskType == RayDiskTypes.Mf2hd || header.diskType == RayDiskTypes.Mf2ed:
imageInfo.MediaType = MediaType.NEC_35_HD_15;
break;
case MediaType.RX50 when header.diskType == RayDiskTypes.Md2dd || header.diskType == RayDiskTypes.Md2hd:
imageInfo.MediaType = MediaType.ATARI_35_SS_DD;
break;
}
imageInfo.XmlMediaType = XmlMediaType.BlockMedia;
return(true);
}
