Refactor image classes and split them to smaller files.

DiscImageChef.DiscImages/AppleDOS/Write.cs

@@ -0,0 +1,210 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : Write.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Disk image plugins.
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Writes 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 © 2011-2018 Natalia Portillo
+// ****************************************************************************/
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using DiscImageChef.CommonTypes;
+using DiscImageChef.CommonTypes.Enums;
+using DiscImageChef.CommonTypes.Structs;
+using Schemas;
+
+namespace DiscImageChef.DiscImages
+{
+    public partial class AppleDos
+    {
+        public bool Create(string path, MediaType mediaType, Dictionary<string, string> options, ulong sectors,
+                           uint   sectorSize)
+        {
+            if(sectorSize != 256)
+            {
+                ErrorMessage = "Unsupported sector size";
+                return false;
+            }
+
+            if(mediaType != MediaType.Apple33SS)
+            {
+                ErrorMessage = $"Unsupport media format {mediaType}";
+                return false;
+            }
+
+            if(sectors > uint.MaxValue)
+            {
+                ErrorMessage = "Too many sectors";
+                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;
+            }
+
+            deinterleaved = new byte[35 * 16 * 256];
+            extension     = Path.GetExtension(path);
+
+            IsWriting    = true;
+            ErrorMessage = null;
+            return true;
+        }
+
+        public bool WriteMediaTag(byte[] data, MediaTagType tag)
+        {
+            ErrorMessage = "Unsupported feature";
+            return false;
+        }
+
+        public bool WriteSector(byte[] data, ulong sectorAddress)
+        {
+            return WriteSectors(data, sectorAddress, 1);
+        }
+
+        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 % imageInfo.SectorSize != 0)
+            {
+                ErrorMessage = "Incorrect data size";
+                return false;
+            }
+
+            if(sectorAddress + length > imageInfo.Sectors)
+            {
+                ErrorMessage = "Tried to write past image size";
+                return false;
+            }
+
+            Array.Copy(data, 0, deinterleaved, (int)(sectorAddress * imageInfo.SectorSize), 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;
+            }
+
+            bool isDos = deinterleaved[0x11001] == 17  && deinterleaved[0x11002] < 16 &&
+                         deinterleaved[0x11027] <= 122 &&
+                         deinterleaved[0x11034] == 35  && deinterleaved[0x11035] == 16 &&
+                         deinterleaved[0x11036] == 0   &&
+                         deinterleaved[0x11037] == 1;
+
+            byte[] tmp = new byte[deinterleaved.Length];
+
+            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(deinterleaved, t * 16 * 256 + offsets[s] * 256, tmp, t * 16 * 256 + s * 256, 256);
+            }
+
+            writingStream.Seek(0, SeekOrigin.Begin);
+            writingStream.Write(tmp, 0, tmp.Length);
+
+            writingStream.Flush();
+            writingStream.Close();
+
+            IsWriting    = false;
+            ErrorMessage = "";
+            return true;
+        }
+
+        public bool SetMetadata(ImageInfo metadata)
+        {
+            return true;
+        }
+
+        public bool SetGeometry(uint cylinders, uint heads, uint sectorsPerTrack)
+        {
+            // Geometry is not stored in image
+            return true;
+        }
+
+        public bool WriteSectorTag(byte[] data, ulong sectorAddress, SectorTagType tag)
+        {
+            ErrorMessage = "Writing sectors with tags is not supported.";
+            return false;
+        }
+
+        public bool WriteSectorsTag(byte[] data, ulong sectorAddress, uint length, SectorTagType tag)
+        {
+            ErrorMessage = "Writing sectors with tags is not supported.";
+            return false;
+        }
+
+        public bool SetDumpHardware(List<DumpHardwareType> dumpHardware)
+        {
+            // Not supported
+            return false;
+        }
+
+        public bool SetCicmMetadata(CICMMetadataType metadata)
+        {
+            // Not supported
+            return false;
+        }
+    }
+}