98 lines
3.3 KiB
C#
98 lines
3.3 KiB
C#
using System;
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using System.Diagnostics.CodeAnalysis;
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using System.IO;
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using System.Text.RegularExpressions;
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using Jellyfish.Library;
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namespace Jellyfish.Virtu
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{
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public abstract class Disk525
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{
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protected Disk525(string name, byte[] data, bool isWriteProtected)
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{
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Name = name;
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Data = data;
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IsWriteProtected = isWriteProtected;
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}
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public static Disk525 CreateDisk(string name, Stream stream, bool isWriteProtected)
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{
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if (name == null)
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{
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throw new ArgumentNullException("name");
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}
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if (name.EndsWith(".do", StringComparison.OrdinalIgnoreCase) ||
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name.EndsWith(".dsk", StringComparison.OrdinalIgnoreCase)) // assumes dos sector skew
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{
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return new DiskDsk(name, stream, isWriteProtected, SectorSkew.Dos);
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}
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else if (name.EndsWith(".nib", StringComparison.OrdinalIgnoreCase))
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{
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return new DiskNib(name, stream, isWriteProtected);
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}
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else if (name.EndsWith(".po", StringComparison.OrdinalIgnoreCase))
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{
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return new DiskDsk(name, stream, isWriteProtected, SectorSkew.ProDos);
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}
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return null;
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}
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[SuppressMessage("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "version")]
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public static Disk525 LoadState(BinaryReader reader, Version version)
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{
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if (reader == null)
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{
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throw new ArgumentNullException("reader");
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}
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string name = reader.ReadString();
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var data = reader.ReadBytes(reader.ReadInt32());
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bool isWriteProtected = reader.ReadBoolean();
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if (name.EndsWith(".do", StringComparison.OrdinalIgnoreCase) ||
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name.EndsWith(".dsk", StringComparison.OrdinalIgnoreCase)) // assumes dos sector skew
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{
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return new DiskDsk(name, data, isWriteProtected, SectorSkew.Dos);
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}
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else if (name.EndsWith(".nib", StringComparison.OrdinalIgnoreCase))
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{
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return new DiskNib(name, data, isWriteProtected);
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}
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else if (name.EndsWith(".po", StringComparison.OrdinalIgnoreCase))
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{
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return new DiskDsk(name, data, isWriteProtected, SectorSkew.ProDos);
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}
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return null;
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}
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public void SaveState(BinaryWriter writer)
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{
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if (writer == null)
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{
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throw new ArgumentNullException("writer");
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}
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writer.Write(Name);
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writer.Write(Data.Length);
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writer.Write(Data);
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writer.Write(IsWriteProtected);
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}
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public abstract void ReadTrack(int number, int fraction, byte[] buffer);
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public abstract void WriteTrack(int number, int fraction, byte[] buffer);
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public string Name { get; private set; }
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[SuppressMessage("Microsoft.Performance", "CA1819:PropertiesShouldNotReturnArrays")]
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public byte[] Data { get; protected set; }
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public bool IsWriteProtected { get; private set; }
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public const int SectorCount = 16;
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public const int SectorSize = 0x100;
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public const int TrackCount = 35;
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public const int TrackSize = 0x1A00;
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}
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}
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