Aaru/Aaru.Images/Alcohol120/Helpers.cs

// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename       : Helpers.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : Disc image plugins.
//
// --[ Description ] ----------------------------------------------------------
//
//     Contains helpers for Alcohol 120% 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 © 2011-2022 Natalia Portillo
// ****************************************************************************/

namespace Aaru.DiscImages;

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

public sealed partial class Alcohol120
{
    static ushort TrackModeToCookedBytesPerSector(TrackMode trackMode)
    {
        switch(trackMode)
        {
            case TrackMode.Mode1:
            case TrackMode.Mode1Alt:
            case TrackMode.Mode2F1:
            case TrackMode.Mode2F1Alt: return 2048;
            case TrackMode.Mode2F2:
            case TrackMode.Mode2F2Alt: return 2324;
            case TrackMode.Mode2: return 2336;
            case TrackMode.Audio:
            case TrackMode.AudioAlt: return 2352;
            case TrackMode.DVD: return 2048;
            default:            return 0;
        }
    }

    static TrackType TrackModeToTrackType(TrackMode trackType)
    {
        switch(trackType)
        {
            case TrackMode.Mode1:
            case TrackMode.Mode1Alt: return TrackType.CdMode1;
            case TrackMode.Mode2F1:
            case TrackMode.Mode2F1Alt: return TrackType.CdMode2Form1;
            case TrackMode.Mode2F2:
            case TrackMode.Mode2F2Alt: return TrackType.CdMode2Form2;
            case TrackMode.Mode2: return TrackType.CdMode2Formless;
            case TrackMode.Audio:
            case TrackMode.AudioAlt: return TrackType.Audio;
            default: return TrackType.Data;
        }
    }

    static MediaType MediumTypeToMediaType(MediumType discType)
    {
        switch(discType)
        {
            case MediumType.CD:   return MediaType.CD;
            case MediumType.CDR:  return MediaType.CDR;
            case MediumType.CDRW: return MediaType.CDRW;
            case MediumType.DVD:  return MediaType.DVDROM;
            case MediumType.DVDR: return MediaType.DVDR;
            default:              return MediaType.Unknown;
        }
    }

    static MediumType MediaTypeToMediumType(MediaType type)
    {
        switch(type)
        {
            case MediaType.CD:
            case MediaType.CDDA:
            case MediaType.CDEG:
            case MediaType.CDG:
            case MediaType.CDI:
            case MediaType.CDMIDI:
            case MediaType.CDPLUS:
            case MediaType.CDROM:
            case MediaType.CDROMXA:
            case MediaType.CDV:
            case MediaType.DTSCD:
            case MediaType.JaguarCD:
            case MediaType.MEGACD:
            case MediaType.PS1CD:
            case MediaType.PS2CD:
            case MediaType.SuperCDROM2:
            case MediaType.SVCD:
            case MediaType.SATURNCD:
            case MediaType.ThreeDO:
            case MediaType.VCD:
            case MediaType.VCDHD:
            case MediaType.NeoGeoCD:
            case MediaType.PCFX:
            case MediaType.CDTV:
            case MediaType.CD32:
            case MediaType.Nuon:
            case MediaType.Playdia:
            case MediaType.Pippin:
            case MediaType.FMTOWNS:
            case MediaType.MilCD:
            case MediaType.VideoNow:
            case MediaType.VideoNowColor:
            case MediaType.VideoNowXp:
            case MediaType.CVD: return MediumType.CD;
            case MediaType.CDR: return MediumType.CDR;
            case MediaType.CDRW:
            case MediaType.CDMRW: return MediumType.CDRW;
            case MediaType.DVDR:
            case MediaType.DVDRW:
            case MediaType.DVDPR:
            case MediaType.DVDRDL:
            case MediaType.DVDRWDL:
            case MediaType.DVDPRDL:
            case MediaType.DVDPRWDL: return MediumType.DVDR;
            default: return MediumType.DVD;
        }
    }

    static TrackMode TrackTypeToTrackMode(TrackType type)
    {
        switch(type)
        {
            case TrackType.Audio:           return TrackMode.Audio;
            case TrackType.CdMode1:         return TrackMode.Mode1;
            case TrackType.CdMode2Formless: return TrackMode.Mode2;
            case TrackType.CdMode2Form1:    return TrackMode.Mode2F1;
            case TrackType.CdMode2Form2:    return TrackMode.Mode2F2;
            default:                        return TrackMode.DVD;
        }
    }

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