Renamed Aaru.DiscImages to Aaru.Images.

2025-12-16 19:24:25 +00:00 · 2020-02-26 19:28:59 +00:00
parent 428e53a76f
commit 8a05685e33
466 changed files with 590 additions and 590 deletions
--- a/Aaru.Images/Anex86/Read.cs
+++ b/Aaru.Images/Anex86/Read.cs
@@ -0,0 +1,101 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : Read.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Disk image plugins.
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Reads Anex86 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 © 2011-2020 Natalia Portillo
+// ****************************************************************************/
+
+using System;
+using System.IO;
+using DiscImageChef.CommonTypes;
+using DiscImageChef.CommonTypes.Enums;
+using DiscImageChef.CommonTypes.Interfaces;
+using DiscImageChef.Console;
+using DiscImageChef.Helpers;
+
+namespace DiscImageChef.DiscImages
+{
+    public partial class Anex86
+    {
+        public bool Open(IFilter imageFilter)
+        {
+            Stream stream = imageFilter.GetDataForkStream();
+            stream.Seek(0, SeekOrigin.Begin);
+
+            if(stream.Length < Marshal.SizeOf<Anex86Header>()) return false;
+
+            byte[] hdrB = new byte[Marshal.SizeOf<Anex86Header>()];
+            stream.Read(hdrB, 0, hdrB.Length);
+
+            fdihdr = Marshal.SpanToStructureLittleEndian<Anex86Header>(hdrB);
+
+            imageInfo.MediaType = Geometry.GetMediaType(((ushort)fdihdr.cylinders, (byte)fdihdr.heads,
+                                                         (ushort)fdihdr.spt, (uint)fdihdr.bps, MediaEncoding.MFM,
+                                                         false));
+            if(imageInfo.MediaType == MediaType.Unknown) imageInfo.MediaType = MediaType.GENERIC_HDD;
+
+            DicConsole.DebugWriteLine("Anex86 plugin", "MediaType: {0}", imageInfo.MediaType);
+
+            imageInfo.ImageSize            = (ulong)fdihdr.dskSize;
+            imageInfo.CreationTime         = imageFilter.GetCreationTime();
+            imageInfo.LastModificationTime = imageFilter.GetLastWriteTime();
+            imageInfo.MediaTitle           = Path.GetFileNameWithoutExtension(imageFilter.GetFilename());
+            imageInfo.Sectors              = (ulong)(fdihdr.cylinders * fdihdr.heads * fdihdr.spt);
+            imageInfo.XmlMediaType         = XmlMediaType.BlockMedia;
+            imageInfo.SectorSize           = (uint)fdihdr.bps;
+            imageInfo.Cylinders            = (uint)fdihdr.cylinders;
+            imageInfo.Heads                = (uint)fdihdr.heads;
+            imageInfo.SectorsPerTrack      = (uint)fdihdr.spt;
+
+            anexImageFilter = imageFilter;
+
+            return true;
+        }
+
+        public byte[] ReadSector(ulong sectorAddress) => ReadSectors(sectorAddress, 1);
+
+        public byte[] ReadSectors(ulong sectorAddress, uint length)
+        {
+            if(sectorAddress > imageInfo.Sectors - 1)
+                throw new ArgumentOutOfRangeException(nameof(sectorAddress), "Sector address not found");
+
+            if(sectorAddress + length > imageInfo.Sectors)
+                throw new ArgumentOutOfRangeException(nameof(length), "Requested more sectors than available");
+
+            byte[] buffer = new byte[length * imageInfo.SectorSize];
+
+            Stream stream = anexImageFilter.GetDataForkStream();
+
+            stream.Seek((long)((ulong)fdihdr.hdrSize + sectorAddress * imageInfo.SectorSize), SeekOrigin.Begin);
+
+            stream.Read(buffer, 0, (int)(length * imageInfo.SectorSize));
+
+            return buffer;
+        }
+    }
+}