Aaru/Aaru.Filesystems/ISO9660/Mode2.cs

// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename       : Mode2.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : ISO9660 filesystem plugin.
//
// --[ Description ] ----------------------------------------------------------
//
//     Handles reading sectors in MODE 0, 1 and 2.
//
// --[ 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 © 2011-2020 Natalia Portillo
// In the loving memory of Facunda "Tata" Suárez Domínguez, R.I.P. 2019/07/24
// ****************************************************************************/

using Aaru.Console;
using Aaru.Decoders.CD;

namespace Aaru.Filesystems
{
    public sealed partial class ISO9660
    {
        byte[] ReadSector(ulong sector, bool interleaved = false, byte fileNumber = 0)
        {
            byte[] data;

            // TODO: No more exceptions
            try
            {
                data = _image.ReadSectorLong(sector);
            }
            catch
            {
                data = _image.ReadSector(sector);
            }

            if(!_debug)
                return Sector.GetUserData(data, interleaved, fileNumber);

            switch(data.Length)
            {
                case 2048:
                    AaruConsole.DebugWriteLine("ISO9660 Plugin", "Sector {0}, Cooked, Mode 0/1 / Mode 2 Form 1",
                                               sector);

                    break;
                case 2324:
                    AaruConsole.DebugWriteLine("ISO9660 Plugin", "Sector {0}, Cooked, Mode 2 Form 2", sector);

                    break;
                case 2336:
                    AaruConsole.DebugWriteLine("ISO9660 Plugin",
                                               "Sector {0}, Cooked, Mode 2 Form {1}, File Number {2}, Channel Number {3}, Submode {4}, Coding Information {5}",
                                               sector, ((Mode2Submode)data[2]).HasFlag(Mode2Submode.Form2) ? 2 : 1,
                                               data[0], data[1], (Mode2Submode)data[2], data[3]);

                    break;
                case 2352 when data[0] != 0x00 || data[1] != 0xFF || data[2]  != 0xFF || data[3]  != 0xFF ||
                               data[4] != 0xFF || data[5] != 0xFF || data[6]  != 0xFF || data[7]  != 0xFF ||
                               data[8] != 0xFF || data[9] != 0xFF || data[10] != 0xFF || data[11] != 0x00:
                    AaruConsole.DebugWriteLine("ISO9660 Plugin", "Sector {0}, Raw, Audio", sector);

                    break;
                case 2352 when data[15] != 2:
                    AaruConsole.DebugWriteLine("ISO9660 Plugin", "Sector {0} ({1:X2}:{2:X2}:{3:X2}), Raw, Mode {4}",
                                               sector, data[12], data[13], data[14], data[15]);

                    break;
                case 2352:
                    AaruConsole.DebugWriteLine("ISO9660 Plugin",
                                               "Sector {0} ({1:X2}:{2:X2}:{3:X2}), Raw, Mode 2 Form {4}, File Number {5}, Channel Number {6}, Submode {7}, Coding Information {8}",
                                               sector, data[12], data[13], data[14],
                                               ((Mode2Submode)data[18]).HasFlag(Mode2Submode.Form2) ? 2 : 1, data[16],
                                               data[17], (Mode2Submode)data[18], data[19]);

                    break;
            }

            return Sector.GetUserData(data, interleaved, fileNumber);
        }
    }
}