mirror of
https://github.com/aaru-dps/Aaru.git
synced 2025-12-16 19:24:25 +00:00
Refactor image classes and split them to smaller files.
This commit is contained in:
285
DiscImageChef.DiscImages/Virtual98/Write.cs
Normal file
285
DiscImageChef.DiscImages/Virtual98/Write.cs
Normal file
@@ -0,0 +1,285 @@
|
||||
// /***************************************************************************
|
||||
// The Disc Image Chef
|
||||
// ----------------------------------------------------------------------------
|
||||
//
|
||||
// Filename : Write.cs
|
||||
// Author(s) : Natalia Portillo <claunia@claunia.com>
|
||||
//
|
||||
// Component : Disk image plugins.
|
||||
//
|
||||
// --[ Description ] ----------------------------------------------------------
|
||||
//
|
||||
// Writes Virtual98 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;
|
||||
using System.Collections.Generic;
|
||||
using System.IO;
|
||||
using System.Linq;
|
||||
using System.Runtime.InteropServices;
|
||||
using System.Text;
|
||||
using DiscImageChef.CommonTypes;
|
||||
using DiscImageChef.CommonTypes.Enums;
|
||||
using DiscImageChef.CommonTypes.Structs;
|
||||
using Schemas;
|
||||
|
||||
namespace DiscImageChef.DiscImages
|
||||
{
|
||||
public partial class Virtual98
|
||||
{
|
||||
public bool Create(string path, MediaType mediaType, Dictionary<string, string> options, ulong sectors,
|
||||
uint sectorSize)
|
||||
{
|
||||
if(sectorSize != 512)
|
||||
{
|
||||
ErrorMessage = "Unsupported sector size";
|
||||
return false;
|
||||
}
|
||||
|
||||
if(sectors > uint.MaxValue)
|
||||
{
|
||||
ErrorMessage = "Too many sectors";
|
||||
return false;
|
||||
}
|
||||
|
||||
if(!SupportedMediaTypes.Contains(mediaType))
|
||||
{
|
||||
ErrorMessage = $"Unsupport media format {mediaType}";
|
||||
return false;
|
||||
}
|
||||
|
||||
imageInfo = new ImageInfo {MediaType = mediaType, SectorSize = sectorSize, Sectors = sectors};
|
||||
|
||||
try { writingStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None); }
|
||||
catch(IOException e)
|
||||
{
|
||||
ErrorMessage = $"Could not create new image file, exception {e.Message}";
|
||||
return false;
|
||||
}
|
||||
|
||||
IsWriting = true;
|
||||
ErrorMessage = null;
|
||||
return true;
|
||||
}
|
||||
|
||||
public bool WriteMediaTag(byte[] data, MediaTagType tag)
|
||||
{
|
||||
ErrorMessage = "Writing media tags is not supported.";
|
||||
return false;
|
||||
}
|
||||
|
||||
public bool WriteSector(byte[] data, ulong sectorAddress)
|
||||
{
|
||||
if(!IsWriting)
|
||||
{
|
||||
ErrorMessage = "Tried to write on a non-writable image";
|
||||
return false;
|
||||
}
|
||||
|
||||
if(data.Length != 512)
|
||||
{
|
||||
ErrorMessage = "Incorrect data size";
|
||||
return false;
|
||||
}
|
||||
|
||||
if(sectorAddress >= imageInfo.Sectors)
|
||||
{
|
||||
ErrorMessage = "Tried to write past image size";
|
||||
return false;
|
||||
}
|
||||
|
||||
writingStream.Seek((long)(0xDC + sectorAddress * 512), SeekOrigin.Begin);
|
||||
writingStream.Write(data, 0, data.Length);
|
||||
|
||||
ErrorMessage = "";
|
||||
return true;
|
||||
}
|
||||
|
||||
public bool WriteSectors(byte[] data, ulong sectorAddress, uint length)
|
||||
{
|
||||
if(!IsWriting)
|
||||
{
|
||||
ErrorMessage = "Tried to write on a non-writable image";
|
||||
return false;
|
||||
}
|
||||
|
||||
if(data.Length % 512 != 0)
|
||||
{
|
||||
ErrorMessage = "Incorrect data size";
|
||||
return false;
|
||||
}
|
||||
|
||||
if(sectorAddress + length > imageInfo.Sectors)
|
||||
{
|
||||
ErrorMessage = "Tried to write past image size";
|
||||
return false;
|
||||
}
|
||||
|
||||
writingStream.Seek((long)(0xDC + sectorAddress * 512), SeekOrigin.Begin);
|
||||
writingStream.Write(data, 0, data.Length);
|
||||
|
||||
ErrorMessage = "";
|
||||
return true;
|
||||
}
|
||||
|
||||
public bool WriteSectorLong(byte[] data, ulong sectorAddress)
|
||||
{
|
||||
ErrorMessage = "Writing sectors with tags is not supported.";
|
||||
return false;
|
||||
}
|
||||
|
||||
public bool WriteSectorsLong(byte[] data, ulong sectorAddress, uint length)
|
||||
{
|
||||
ErrorMessage = "Writing sectors with tags is not supported.";
|
||||
return false;
|
||||
}
|
||||
|
||||
public bool SetTracks(List<Track> tracks)
|
||||
{
|
||||
ErrorMessage = "Unsupported feature";
|
||||
return false;
|
||||
}
|
||||
|
||||
public bool Close()
|
||||
{
|
||||
if(!IsWriting)
|
||||
{
|
||||
ErrorMessage = "Image is not opened for writing";
|
||||
return false;
|
||||
}
|
||||
|
||||
if(imageInfo.Cylinders == 0)
|
||||
{
|
||||
imageInfo.Cylinders = (uint)(imageInfo.Sectors / 16 / 63);
|
||||
imageInfo.Heads = 16;
|
||||
imageInfo.SectorsPerTrack = 63;
|
||||
|
||||
while(imageInfo.Cylinders == 0)
|
||||
{
|
||||
imageInfo.Heads--;
|
||||
|
||||
if(imageInfo.Heads == 0)
|
||||
{
|
||||
imageInfo.SectorsPerTrack--;
|
||||
imageInfo.Heads = 16;
|
||||
}
|
||||
|
||||
imageInfo.Cylinders = (uint)(imageInfo.Sectors / imageInfo.Heads / imageInfo.SectorsPerTrack);
|
||||
|
||||
if(imageInfo.Cylinders == 0 && imageInfo.Heads == 0 && imageInfo.SectorsPerTrack == 0) break;
|
||||
}
|
||||
}
|
||||
|
||||
byte[] commentsBytes = null;
|
||||
if(!string.IsNullOrEmpty(imageInfo.Comments))
|
||||
commentsBytes = Encoding.GetEncoding("shift_jis").GetBytes(imageInfo.Comments);
|
||||
|
||||
v98Hdr = new Virtual98Header
|
||||
{
|
||||
comment = new byte[128],
|
||||
cylinders = (ushort)imageInfo.Cylinders,
|
||||
padding2 = new byte[0x44],
|
||||
sectors = (byte)imageInfo.SectorsPerTrack,
|
||||
sectorsize = (ushort)imageInfo.SectorSize,
|
||||
signature = signature,
|
||||
surfaces = (byte)imageInfo.Heads,
|
||||
totals = (uint)imageInfo.Sectors
|
||||
};
|
||||
|
||||
if(commentsBytes != null)
|
||||
Array.Copy(commentsBytes, 0, v98Hdr.comment, 0,
|
||||
commentsBytes.Length >= 128 ? 128 : commentsBytes.Length);
|
||||
|
||||
byte[] hdr = new byte[Marshal.SizeOf(v98Hdr)];
|
||||
IntPtr hdrPtr = Marshal.AllocHGlobal(Marshal.SizeOf(v98Hdr));
|
||||
Marshal.StructureToPtr(v98Hdr, hdrPtr, true);
|
||||
Marshal.Copy(hdrPtr, hdr, 0, hdr.Length);
|
||||
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 SetMetadata(ImageInfo metadata)
|
||||
{
|
||||
imageInfo.Comments = metadata.Comments;
|
||||
return true;
|
||||
}
|
||||
|
||||
public bool SetGeometry(uint cylinders, uint heads, uint sectorsPerTrack)
|
||||
{
|
||||
if(cylinders > ushort.MaxValue)
|
||||
{
|
||||
ErrorMessage = "Too many cylinders.";
|
||||
return false;
|
||||
}
|
||||
|
||||
if(heads > byte.MaxValue)
|
||||
{
|
||||
ErrorMessage = "Too many heads.";
|
||||
return false;
|
||||
}
|
||||
|
||||
if(sectorsPerTrack > byte.MaxValue)
|
||||
{
|
||||
ErrorMessage = "Too many sectors per track.";
|
||||
return false;
|
||||
}
|
||||
|
||||
imageInfo.SectorsPerTrack = sectorsPerTrack;
|
||||
imageInfo.Heads = heads;
|
||||
imageInfo.Cylinders = cylinders;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
public bool WriteSectorTag(byte[] data, ulong sectorAddress, SectorTagType tag)
|
||||
{
|
||||
ErrorMessage = "Unsupported feature";
|
||||
return false;
|
||||
}
|
||||
|
||||
public bool WriteSectorsTag(byte[] data, ulong sectorAddress, uint length, SectorTagType tag)
|
||||
{
|
||||
ErrorMessage = "Unsupported feature";
|
||||
return false;
|
||||
}
|
||||
|
||||
public bool SetDumpHardware(List<DumpHardwareType> dumpHardware)
|
||||
{
|
||||
// Not supported
|
||||
return false;
|
||||
}
|
||||
|
||||
public bool SetCicmMetadata(CICMMetadataType metadata)
|
||||
{
|
||||
// Not supported
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user