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/AppleDOS/Read.cs
+++ b/Aaru.Images/AppleDOS/Read.cs
@@ -0,0 +1,104 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : Read.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Disk image plugins.
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Reads interleaved Apple ][ 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;
+
+namespace DiscImageChef.DiscImages
+{
+    public partial class AppleDos
+    {
+        public bool Open(IFilter imageFilter)
+        {
+            Stream stream = imageFilter.GetDataForkStream();
+            stream.Seek(0, SeekOrigin.Begin);
+
+            byte[] tmp = new byte[imageFilter.GetDataForkLength()];
+            stream.Read(tmp, 0, tmp.Length);
+
+            bool isDos = tmp[0x11001] == 17 && tmp[0x11002] < 16 && tmp[0x11027] <= 122 && tmp[0x11034] == 35 &&
+                         tmp[0x11035] == 16 && tmp[0x11036] == 0 && tmp[0x11037] == 1;
+
+            deinterleaved = new byte[tmp.Length];
+
+            extension = Path.GetExtension(imageFilter.GetFilename())?.ToLower();
+
+            int[] offsets = extension == ".do"
+                                ? isDos
+                                      ? deinterleave
+                                      : interleave
+                                : isDos
+                                    ? interleave
+                                    : deinterleave;
+
+            for(int t = 0; t < 35; t++)
+            {
+                for(int s = 0; s < 16; s++)
+                    Array.Copy(tmp, t * 16 * 256 + s * 256, deinterleaved, t * 16 * 256 + offsets[s] * 256, 256);
+            }
+
+            imageInfo.SectorSize           = 256;
+            imageInfo.ImageSize            = (ulong)imageFilter.GetDataForkLength();
+            imageInfo.CreationTime         = imageFilter.GetCreationTime();
+            imageInfo.LastModificationTime = imageFilter.GetLastWriteTime();
+            imageInfo.MediaTitle           = Path.GetFileNameWithoutExtension(imageFilter.GetFilename());
+            imageInfo.Sectors              = 560;
+            imageInfo.MediaType            = MediaType.Apple33SS;
+            imageInfo.XmlMediaType         = XmlMediaType.BlockMedia;
+            imageInfo.Cylinders            = 35;
+            imageInfo.Heads                = 2;
+            imageInfo.SectorsPerTrack      = 16;
+
+            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];
+
+            Array.Copy(deinterleaved, (int)(sectorAddress * imageInfo.SectorSize), buffer, 0, buffer.Length);
+
+            return buffer;
+        }
+    }
+}