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78 lines
2.8 KiB
C#
78 lines
2.8 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Structs.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Disk image plugins.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Contains structures for HD-Copy disk images.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2017-2025 Michael Drüing
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// Copyright © 2011-2025 Natalia Portillo
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// ****************************************************************************/
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using System.Diagnostics.CodeAnalysis;
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using System.Runtime.InteropServices;
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namespace Aaru.Images;
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[SuppressMessage("ReSharper", "UnusedType.Local")]
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public sealed partial class HdCopy
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{
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#region Nested type: BlockHeader
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/// <summary>The header for a RLE-compressed block</summary>
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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readonly struct BlockHeader
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{
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/// <summary>The length of the compressed block, in bytes. Little-endian.</summary>
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public readonly ushort length;
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/// <summary>The byte value used as RLE escape sequence</summary>
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public readonly byte escape;
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}
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#endregion
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#region Nested type: FileHeader
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/// <summary>The global header of a HDCP image file</summary>
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct FileHeader
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{
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/// <summary>Last cylinder (zero-based)</summary>
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public byte lastCylinder;
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/// <summary>Sectors per track</summary>
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public byte sectorsPerTrack;
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/// <summary>
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/// The track map. It contains one byte for each track. Up to 82 tracks (41 tracks * 2 sides) are supported. 0
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/// means track is not present, 1 means it is present. The first 2 tracks are always present.
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/// </summary>
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2 * 82)]
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public byte[] trackMap;
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}
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#endregion
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} |