Aaru/Aaru.Images/CDRDAO/Helpers.cs

// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename       : Helpers.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : Disk image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
//     Contains helpers for cdrdao cuesheets (toc/bin).
//
// --[ 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 © 2011-2023 Natalia Portillo
// ****************************************************************************/

using Aaru.CommonTypes.Enums;
using Aaru.CommonTypes.Structs;

namespace Aaru.DiscImages;

public sealed partial class Cdrdao
{
    static ushort CdrdaoTrackTypeToCookedBytesPerSector(string trackType)
    {
        switch(trackType)
        {
            case CDRDAO_TRACK_TYPE_MODE1:
            case CDRDAO_TRACK_TYPE_MODE2_FORM1:
            case CDRDAO_TRACK_TYPE_MODE1_RAW: return 2048;
            case CDRDAO_TRACK_TYPE_MODE2_FORM2: return 2324;
            case CDRDAO_TRACK_TYPE_MODE2:
            case CDRDAO_TRACK_TYPE_MODE2_MIX:
            case CDRDAO_TRACK_TYPE_MODE2_RAW: return 2336;
            case CDRDAO_TRACK_TYPE_AUDIO: return 2352;
            default:                      return 0;
        }
    }

    static TrackType CdrdaoTrackTypeToTrackType(string trackType)
    {
        switch(trackType)
        {
            case CDRDAO_TRACK_TYPE_MODE1:
            case CDRDAO_TRACK_TYPE_MODE1_RAW: return TrackType.CdMode1;
            case CDRDAO_TRACK_TYPE_MODE2_FORM1: return TrackType.CdMode2Form1;
            case CDRDAO_TRACK_TYPE_MODE2_FORM2: return TrackType.CdMode2Form2;
            case CDRDAO_TRACK_TYPE_MODE2:
            case CDRDAO_TRACK_TYPE_MODE2_MIX:
            case CDRDAO_TRACK_TYPE_MODE2_RAW: return TrackType.CdMode2Formless;
            case CDRDAO_TRACK_TYPE_AUDIO: return TrackType.Audio;
            default:                      return TrackType.Data;
        }
    }

    static (byte minute, byte second, byte frame) LbaToMsf(ulong sector) =>
        ((byte)(sector / 75 / 60), (byte)(sector / 75 % 60), (byte)(sector % 75));

    static string GetTrackMode(Track track)
    {
        switch(track.Type)
        {
            case TrackType.Audio when track.RawBytesPerSector == 2352:           return CDRDAO_TRACK_TYPE_AUDIO;
            case TrackType.Data:                                                 return CDRDAO_TRACK_TYPE_MODE1;
            case TrackType.CdMode1 when track.RawBytesPerSector         == 2352: return CDRDAO_TRACK_TYPE_MODE1_RAW;
            case TrackType.CdMode2Formless when track.RawBytesPerSector != 2352: return CDRDAO_TRACK_TYPE_MODE2;
            case TrackType.CdMode2Form1 when track.RawBytesPerSector    != 2352: return CDRDAO_TRACK_TYPE_MODE2_FORM1;
            case TrackType.CdMode2Form2 when track.RawBytesPerSector    != 2352: return CDRDAO_TRACK_TYPE_MODE2_FORM2;
            case TrackType.CdMode2Formless when track.RawBytesPerSector == 2352:
            case TrackType.CdMode2Form1 when track.RawBytesPerSector    == 2352:
            case TrackType.CdMode2Form2 when track.RawBytesPerSector    == 2352: return CDRDAO_TRACK_TYPE_MODE2_RAW;
            default: return CDRDAO_TRACK_TYPE_MODE1;
        }
    }
}