Refactor image classes and split them to smaller files.

DiscImageChef.DiscImages/CPCDSK/Structs.cs

@@ -0,0 +1,168 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : Structs.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Disk image plugins.
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Contains structures for CPCEMU 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.Runtime.InteropServices;
+using DiscImageChef.Decoders.Floppy;
+
+namespace DiscImageChef.DiscImages
+{
+    public partial class Cpcdsk
+    {
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        struct CpcDiskInfo
+        {
+            /// <summary>
+            ///     Magic number, "MV - CPCEMU Disk-File" in old files, "EXTENDED CPC DSK File" in extended ones
+            /// </summary>
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 21)]
+            public byte[] magic;
+            /// <summary>
+            ///     Second part of magic, should be "\r\nDisk-Info\r\n" in all, but some emulators write spaces instead.
+            /// </summary>
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 13)]
+            public byte[] magic2;
+            /// <summary>
+            ///     Creator application (can be null)
+            /// </summary>
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 14)]
+            public byte[] creator;
+            /// <summary>
+            ///     Tracks
+            /// </summary>
+            public byte tracks;
+            /// <summary>
+            ///     Sides
+            /// </summary>
+            public byte sides;
+            /// <summary>
+            ///     Size of a track including the 256 bytes header. Unused by extended format, as this format includes a table in the
+            ///     next field
+            /// </summary>
+            public ushort tracksize;
+            /// <summary>
+            ///     Size of each track in the extended format. 0 indicates track is not formatted and not present in image.
+            /// </summary>
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 204)]
+            public byte[] tracksizeTable;
+        }
+
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        struct CpcTrackInfo
+        {
+            /// <summary>
+            ///     Magic number, "Track-Info\r\n"
+            /// </summary>
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 10)]
+            public byte[] magic;
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
+            public byte[] carriageReturn;
+            /// <summary>
+            ///     Padding
+            /// </summary>
+            public uint padding;
+            /// <summary>
+            ///     Track number
+            /// </summary>
+            public byte track;
+            /// <summary>
+            ///     Side number
+            /// </summary>
+            public byte side;
+            /// <summary>
+            ///     Controller data rate
+            /// </summary>
+            public byte dataRate;
+            /// <summary>
+            ///     Recording mode
+            /// </summary>
+            public byte recordingMode;
+            /// <summary>
+            ///     Bytes per sector
+            /// </summary>
+            public IBMSectorSizeCode bps;
+            /// <summary>
+            ///     How many sectors in this track
+            /// </summary>
+            public byte sectors;
+            /// <summary>
+            ///     GAP#3
+            /// </summary>
+            public byte gap3;
+            /// <summary>
+            ///     Filler
+            /// </summary>
+            public byte filler;
+            /// <summary>
+            ///     Informatino for up to 32 sectors
+            /// </summary>
+            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)]
+            public CpcSectorInfo[] sectorsInfo;
+        }
+
+        /// <summary>
+        ///     Sector information
+        /// </summary>
+        [StructLayout(LayoutKind.Sequential, Pack = 1)]
+        struct CpcSectorInfo
+        {
+            /// <summary>
+            ///     Track number from address mark
+            /// </summary>
+            public byte track;
+            /// <summary>
+            ///     Side number from address mark
+            /// </summary>
+            public byte side;
+            /// <summary>
+            ///     Sector ID from address mark
+            /// </summary>
+            public byte id;
+            /// <summary>
+            ///     Sector size from address mark
+            /// </summary>
+            public IBMSectorSizeCode size;
+            /// <summary>
+            ///     ST1 register from controller
+            /// </summary>
+            public byte st1;
+            /// <summary>
+            ///     ST2 register from controller
+            /// </summary>
+            public byte st2;
+            /// <summary>
+            ///     Length in bytes of this sector size. If it is bigger than expected sector size, it's a weak sector read several
+            ///     times.
+            /// </summary>
+            public ushort len;
+        }
+    }
+}