Aaru/DiscImageChef.DiscImages/CloneCD/Helpers.cs

// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename       : Helpers.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : Disk image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
//     Contains helpers for CloneCD disc 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
// ****************************************************************************/

namespace DiscImageChef.DiscImages
{
    public partial class CloneCd
    {
        static ulong GetLba(int minute, int second, int frame)
        {
            return (ulong)(minute * 60 * 75 + second * 75 + frame - 150);
        }

        static long MsfToLba((byte minute, byte second, byte frame) msf)
        {
            return msf.minute * 60 * 75 + msf.second * 75 + msf.frame - 150;
        }

        static (byte minute, byte second, byte frame) LbaToMsf(ulong sector)
        {
            return ((byte)((sector + 150) / 75 / 60), (byte)((sector + 150) / 75 % 60), (byte)((sector + 150) % 75));
        }
    }
}