mirror of
https://github.com/aaru-dps/Aaru.git
synced 2025-12-16 19:24:25 +00:00
Add writing support to Basic Lisa Utility disk image.
This commit is contained in:
@@ -219,7 +219,7 @@ namespace DiscImageChef.Decoders
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/// <summary>
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/// Converts this tag to Apple Profile format
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/// </summary>
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public ProfileTag Profile()
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public ProfileTag ToProfile()
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{
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return new ProfileTag
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{
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@@ -33,13 +33,17 @@
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using DiscImageChef.CommonTypes;
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using DiscImageChef.Console;
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using DiscImageChef.Decoders;
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using DiscImageChef.Filters;
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using Version = DiscImageChef.Interop.Version;
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namespace DiscImageChef.DiscImages
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{
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public class Blu : IMediaImage
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public class Blu : IWritableImage
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{
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const string PROFILE_NAME = "PROFILE ";
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const string PROFILE10_NAME = "PROFILE 10 ";
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@@ -50,6 +54,7 @@ namespace DiscImageChef.DiscImages
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BluHeader imageHeader;
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ImageInfo imageInfo;
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FileStream writingStream;
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public Blu()
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{
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@@ -112,7 +117,9 @@ namespace DiscImageChef.DiscImages
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tmpHdr.DeviceBlocks = BigEndianBitConverter.ToUInt32(header, 0x11) & 0x00FFFFFF;
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tmpHdr.BytesPerBlock = BigEndianBitConverter.ToUInt16(header, 0x15);
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for(int i = 0; i < 0xD; i++) if(tmpHdr.DeviceName[i] < 0x20) return false;
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for(int i = 0; i < 0xD; i++)
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if(tmpHdr.DeviceName[i] < 0x20)
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return false;
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return (tmpHdr.BytesPerBlock & 0xFE00) == 0x200;
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}
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@@ -138,7 +145,9 @@ namespace DiscImageChef.DiscImages
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DicConsole.DebugWriteLine("BLU plugin", "ImageHeader.deviceBlock = {0}", imageHeader.DeviceBlocks);
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DicConsole.DebugWriteLine("BLU plugin", "ImageHeader.bytesPerBlock = {0}", imageHeader.BytesPerBlock);
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for(int i = 0; i < 0xD; i++) if(imageHeader.DeviceName[i] < 0x20) return false;
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for(int i = 0; i < 0xD; i++)
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if(imageHeader.DeviceName[i] < 0x20)
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return false;
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if((imageHeader.BytesPerBlock & 0xFE00) != 0x200) return false;
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@@ -157,19 +166,22 @@ namespace DiscImageChef.DiscImages
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switch(StringHandlers.CToString(imageHeader.DeviceName))
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{
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case PROFILE_NAME:
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imageInfo.MediaType = imageInfo.Sectors == 0x2600 ? MediaType.AppleProfile : MediaType.GENERIC_HDD;
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imageInfo.MediaType =
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imageInfo.Sectors == 0x2600 ? MediaType.AppleProfile : MediaType.GENERIC_HDD;
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imageInfo.Cylinders = 152;
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imageInfo.Heads = 4;
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imageInfo.SectorsPerTrack = 16;
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break;
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case PROFILE10_NAME:
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imageInfo.MediaType = imageInfo.Sectors == 0x4C00 ? MediaType.AppleProfile : MediaType.GENERIC_HDD;
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imageInfo.MediaType =
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imageInfo.Sectors == 0x4C00 ? MediaType.AppleProfile : MediaType.GENERIC_HDD;
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imageInfo.Cylinders = 304;
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imageInfo.Heads = 4;
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imageInfo.SectorsPerTrack = 16;
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break;
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case WIDGET_NAME:
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imageInfo.MediaType = imageInfo.Sectors == 0x4C00 ? MediaType.AppleWidget : MediaType.GENERIC_HDD;
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imageInfo.MediaType =
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imageInfo.Sectors == 0x4C00 ? MediaType.AppleWidget : MediaType.GENERIC_HDD;
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imageInfo.Cylinders = 304;
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imageInfo.Heads = 4;
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imageInfo.SectorsPerTrack = 16;
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@@ -344,15 +356,7 @@ namespace DiscImageChef.DiscImages
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throw new FeatureUnsupportedImageException("Feature not supported by image format");
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}
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struct BluHeader
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{
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public byte[] DeviceName;
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public uint DeviceType;
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public uint DeviceBlocks;
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public ushort BytesPerBlock;
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}
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#region Verification, should add tag checksum checks
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// TODO: Check tag checkums
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public bool? VerifySector(ulong sectorAddress)
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{
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return null;
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@@ -389,6 +393,368 @@ namespace DiscImageChef.DiscImages
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{
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return null;
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}
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#endregion Verification, should add tag checksum checks
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public IEnumerable<MediaTagType> SupportedMediaTags => new MediaTagType[] { };
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public IEnumerable<SectorTagType> SupportedSectorTags => new[] {SectorTagType.AppleSectorTag};
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public IEnumerable<MediaType> SupportedMediaTypes =>
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new[]
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{
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MediaType.AppleProfile, MediaType.AppleWidget, MediaType.PriamDataTower, MediaType.GENERIC_HDD,
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MediaType.Unknown
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};
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public IEnumerable<(string name, Type type, string description)> SupportedOptions =>
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new (string name, Type type, string description)[] { };
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public IEnumerable<string> KnownExtensions => new[] {".blu"}; // Just invented
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public bool IsWriting { get; private set; }
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public string ErrorMessage { get; private set; }
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public bool Create(string path, MediaType mediaType, Dictionary<string, string> options, ulong sectors,
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uint sectorSize)
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{
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if(sectorSize != 512)
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{
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ErrorMessage = "Unsupported sector size";
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return false;
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}
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if(sectors > 0xFFFFFF)
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{
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ErrorMessage = $"Too many sectors";
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return false;
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}
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if(!SupportedMediaTypes.Contains(mediaType))
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{
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ErrorMessage = $"Unsupport media format {mediaType}";
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return false;
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}
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imageInfo = new ImageInfo {MediaType = mediaType, SectorSize = sectorSize, Sectors = sectors};
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try { writingStream = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None); }
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catch(IOException e)
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{
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ErrorMessage = $"Could not create new image file, exception {e.Message}";
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return false;
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}
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IsWriting = true;
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ErrorMessage = null;
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return true;
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}
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public bool WriteMediaTag(byte[] data, MediaTagType tag)
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{
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ErrorMessage = "Writing media tags is not supported.";
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return false;
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}
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public bool WriteSector(byte[] data, ulong sectorAddress)
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{
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int longSectorSize = imageInfo.MediaType == MediaType.PriamDataTower ? 536 : 532;
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if(!IsWriting)
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{
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ErrorMessage = "Tried to write on a non-writable image";
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return false;
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}
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if(data.Length != 512)
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{
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ErrorMessage = "Incorrect data size";
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return false;
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}
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if(sectorAddress >= imageInfo.Sectors)
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{
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ErrorMessage = "Tried to write past image size";
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return false;
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}
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writingStream.Seek(longSectorSize + (long)sectorAddress * longSectorSize, SeekOrigin.Begin);
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writingStream.Write(data, 0, data.Length);
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ErrorMessage = "";
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return true;
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}
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public bool WriteSectors(byte[] data, ulong sectorAddress, uint length)
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{
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int longSectorSize = imageInfo.MediaType == MediaType.PriamDataTower ? 536 : 532;
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if(!IsWriting)
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{
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ErrorMessage = "Tried to write on a non-writable image";
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return false;
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}
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if(data.Length % 512 != 0)
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{
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ErrorMessage = "Incorrect data size";
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return false;
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}
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if(sectorAddress + length > imageInfo.Sectors)
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{
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ErrorMessage = "Tried to write past image size";
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return false;
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}
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writingStream.Seek(longSectorSize + (long)sectorAddress * longSectorSize, SeekOrigin.Begin);
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writingStream.Write(data, 0, data.Length);
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ErrorMessage = "";
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return true;
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}
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public bool WriteSectorLong(byte[] data, ulong sectorAddress)
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{
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if(!IsWriting)
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{
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ErrorMessage = "Tried to write on a non-writable image";
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return false;
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}
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if(sectorAddress >= imageInfo.Sectors)
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{
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ErrorMessage = "Tried to write past image size";
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return false;
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}
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int longSectorSize = imageInfo.MediaType == MediaType.PriamDataTower ? 536 : 532;
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byte[] oldTag;
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byte[] newTag;
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switch(data.Length - 512)
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{
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// Sony tag, convert to Profile
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case 12 when longSectorSize == 532:
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oldTag = new byte[12];
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Array.Copy(data, 512, oldTag, 0, 12);
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newTag = LisaTag.DecodeSonyTag(oldTag)?.ToProfile().GetBytes();
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break;
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// Sony tag, convert to Priam
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case 12 when longSectorSize == 536:
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oldTag = new byte[12];
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Array.Copy(data, 512, oldTag, 0, 12);
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newTag = LisaTag.DecodeSonyTag(oldTag)?.ToPriam().GetBytes();
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break;
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// Profile tag, copy to Profile
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case 20 when longSectorSize == 532:
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newTag = new byte[20];
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Array.Copy(data, 512, newTag, 0, 20);
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break;
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// Profile tag, convert to Priam
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case 20 when longSectorSize == 536:
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oldTag = new byte[20];
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Array.Copy(data, 512, oldTag, 0, 20);
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newTag = LisaTag.DecodeProfileTag(oldTag)?.ToPriam().GetBytes();
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break;
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// Priam tag, convert to Profile
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case 24 when longSectorSize == 532:
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oldTag = new byte[24];
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Array.Copy(data, 512, oldTag, 0, 24);
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newTag = LisaTag.DecodePriamTag(oldTag)?.ToProfile().GetBytes();
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break;
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// Priam tag, copy to Priam
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case 12 when longSectorSize == 536:
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newTag = new byte[24];
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Array.Copy(data, 512, newTag, 0, 24);
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break;
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case 0:
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newTag = null;
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break;
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default:
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ErrorMessage = "Incorrect data size";
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return false;
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}
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if(newTag == null) newTag = new byte[longSectorSize - 512];
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writingStream.Seek(longSectorSize + (long)sectorAddress * longSectorSize, SeekOrigin.Begin);
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writingStream.Write(data, 0, 512);
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writingStream.Write(newTag, 0, newTag.Length);
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ErrorMessage = "";
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return true;
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}
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public bool WriteSectorsLong(byte[] data, ulong sectorAddress, uint length)
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{
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if(!IsWriting)
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{
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ErrorMessage = "Tried to write on a non-writable image";
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return false;
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}
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if(sectorAddress + length > imageInfo.Sectors)
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{
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ErrorMessage = "Tried to write past image size";
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return false;
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}
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int longSectorSize = imageInfo.MediaType == MediaType.PriamDataTower ? 536 : 532;
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long givenSectorSize = data.Length / length;
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switch(givenSectorSize)
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{
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case 536:
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case 532:
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case 524:
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case 512: break;
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default:
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ErrorMessage = "Incorrect data size";
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return false;
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}
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for(uint i = 0; i < length; i++)
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{
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byte[] oldTag;
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byte[] newTag;
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switch(givenSectorSize - 512)
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{
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// Sony tag, convert to Profile
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case 12 when longSectorSize == 532:
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oldTag = new byte[12];
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Array.Copy(data, givenSectorSize * i + 512, oldTag, 0, 12);
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newTag = LisaTag.DecodeSonyTag(oldTag)?.ToProfile().GetBytes();
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break;
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// Sony tag, convert to Priam
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case 12 when longSectorSize == 536:
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oldTag = new byte[12];
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Array.Copy(data, givenSectorSize * i + 512, oldTag, 0, 12);
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newTag = LisaTag.DecodeSonyTag(oldTag)?.ToPriam().GetBytes();
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break;
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// Profile tag, copy to Profile
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case 20 when longSectorSize == 532:
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newTag = new byte[20];
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Array.Copy(data, givenSectorSize * i + 512, newTag, 0, 20);
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break;
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// Profile tag, convert to Priam
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case 20 when longSectorSize == 536:
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oldTag = new byte[20];
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Array.Copy(data, givenSectorSize * i + 512, oldTag, 0, 20);
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newTag = LisaTag.DecodeProfileTag(oldTag)?.ToPriam().GetBytes();
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break;
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// Priam tag, convert to Profile
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case 24 when longSectorSize == 532:
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oldTag = new byte[24];
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Array.Copy(data, givenSectorSize * i + 512, oldTag, 0, 24);
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newTag = LisaTag.DecodePriamTag(oldTag)?.ToProfile().GetBytes();
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break;
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// Priam tag, copy to Priam
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case 12 when longSectorSize == 536:
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newTag = new byte[24];
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Array.Copy(data, givenSectorSize * i + 512, newTag, 0, 24);
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break;
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case 0:
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newTag = null;
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break;
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default:
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ErrorMessage = "Incorrect data size";
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return false;
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}
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if(newTag == null) newTag = new byte[longSectorSize - 512];
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writingStream.Seek(longSectorSize + (long)sectorAddress * longSectorSize, SeekOrigin.Begin);
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writingStream.Write(data, (int)(givenSectorSize * i), 512);
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writingStream.Write(newTag, 0, newTag.Length);
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}
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ErrorMessage = "";
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return true;
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}
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public bool SetTracks(List<Track> tracks)
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{
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ErrorMessage = "Unsupported feature";
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return false;
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}
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public bool Close()
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{
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if(!IsWriting)
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{
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ErrorMessage = "Image is not opened for writing";
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return false;
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}
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BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian;
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byte[] markerTag = Encoding.UTF8.GetBytes("DiscImageChef " + Version.GetVersion());
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byte[] driveName;
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byte[] driveType = new byte[3];
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byte[] driveBlocks = BigEndianBitConverter.GetBytes((uint)imageInfo.Sectors);
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int longSectorSize = imageInfo.MediaType == MediaType.PriamDataTower ? 536 : 532;
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byte[] blockSize = BigEndianBitConverter.GetBytes((ushort)longSectorSize);
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switch(imageInfo.MediaType)
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{
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case MediaType.AppleProfile when imageInfo.Sectors == 0x4C00:
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driveName = Encoding.ASCII.GetBytes(PROFILE10_NAME);
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break;
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case MediaType.AppleWidget when imageInfo.Sectors == 0x4C00:
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driveType[1] = 0x01;
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driveName = Encoding.ASCII.GetBytes(PROFILE10_NAME);
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break;
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case MediaType.PriamDataTower when imageInfo.Sectors == 0x22C7C:
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driveType[1] = 0xFF;
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driveName = Encoding.ASCII.GetBytes(PRIAM_NAME);
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break;
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default:
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driveName = Encoding.ASCII.GetBytes(PROFILE_NAME);
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break;
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}
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writingStream.Seek(0, SeekOrigin.Begin);
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writingStream.Write(driveName, 0, driveName.Length >= 0xD ? 0xD : driveName.Length);
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writingStream.Seek(0xD, SeekOrigin.Begin);
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writingStream.Write(driveType, 0, 3);
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writingStream.Seek(0x12, SeekOrigin.Begin);
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writingStream.Write(driveBlocks, 1, 3);
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writingStream.Seek(0x15, SeekOrigin.Begin);
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writingStream.Write(blockSize, 1, 2);
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writingStream.Seek(512, SeekOrigin.Begin);
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writingStream.Write(markerTag, 0,
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markerTag.Length >= longSectorSize - 512 ? longSectorSize - 512 : markerTag.Length);
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writingStream.Flush();
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writingStream.Close();
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return true;
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}
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public bool SetMetadata(ImageInfo metadata)
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{
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return true;
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}
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public bool SetGeometry(uint cylinders, uint heads, uint sectorsPerTrack)
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{
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// Geometry is not stored in image
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return true;
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}
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public bool WriteSectorTag(byte[] data, ulong sectorAddress, SectorTagType tag)
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{
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ErrorMessage = "Unsupported feature";
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return false;
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}
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public bool WriteSectorsTag(byte[] data, ulong sectorAddress, uint length, SectorTagType tag)
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{
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ErrorMessage = "Unsupported feature";
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return false;
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}
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struct BluHeader
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{
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public byte[] DeviceName;
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public uint DeviceType;
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public uint DeviceBlocks;
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public ushort BytesPerBlock;
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}
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}
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}
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Reference in New Issue
Block a user