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53 lines
2.2 KiB
C#
53 lines
2.2 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : CHS.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Helpers.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Helpers for CHS<->LBA conversions
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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 © 2011-2018 Natalia Portillo
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// ****************************************************************************/
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namespace DiscImageChef.Helpers
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{
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public static class CHS
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{
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/// <summary>
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/// Converts a CHS position to a LBA one
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/// </summary>
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/// <param name="cyl">Cylinder</param>
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/// <param name="head">Head</param>
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/// <param name="sector">Sector</param>
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/// <param name="maxHead">Number of heads</param>
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/// <param name="maxSector">Number of sectors per track</param>
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/// <returns></returns>
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public static uint ToLBA(uint cyl, uint head, uint sector, uint maxHead, uint maxSector)
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{
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return maxHead == 0 || maxSector == 0
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? (cyl * 16 + head) * 63 + sector - 1
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: (cyl * maxHead + head) * maxSector + sector - 1;
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}
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}
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} |