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Implement detection of CD32 and CDTV discs.

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This commit is contained in:
Natalia Portillo
2020-06-21 16:35:36 +01:00
parent e4ce5bc32d
commit 43360c340e
1 changed files with 161 additions and 5 deletions
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166
Aaru.Core/Media/Detection/MMC.cs
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@@ -31,6 +31,7 @@
// ****************************************************************************/
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Aaru.Checksums;
@@ -375,8 +376,7 @@ namespace Aaru.Core.Media.Detection
uint firstSectorSecondSessionFirstTrack =
(uint)(((secondSessionFirstTrackTrack.PHOUR * 3600 * 75) +
(secondSessionFirstTrackTrack.PMIN * 60 * 75) +
(secondSessionFirstTrackTrack.PSEC * 75) +
(secondSessionFirstTrackTrack.PMIN * 60 * 75) + (secondSessionFirstTrackTrack.PSEC * 75) +
secondSessionFirstTrackTrack.PFRAME) - 150);
sense = dev.ReadCd(out cmdBuf, out _, firstSectorSecondSessionFirstTrack, 2352, 1,
@@ -869,9 +869,6 @@ namespace Aaru.Core.Media.Detection
case MediaType.CDPLUS:
case MediaType.CDROM:
case MediaType.CDROMXA:
// TODO: CDTV requires reading the filesystem, searching for a file called "/CDTV.TM"
// TODO: CD32 requires reading the filesystem, searching for a file called "/CD32.TM"
// TODO: Neo-Geo CD requires reading the filesystem and checking that the file "/IPL.TXT" is correct
// TODO: Pippin requires interpreting Apple Partition Map, reading HFS and checking for Pippin signatures
{
if(CD.DecodeIPBin(sector0).HasValue)
@@ -882,12 +879,20 @@ namespace Aaru.Core.Media.Detection
}
if(Saturn.DecodeIPBin(sector0).HasValue)
{
mediaType = MediaType.SATURNCD;
return;
}
// Are GDR detectable ???
if(Dreamcast.DecodeIPBin(sector0).HasValue)
{
mediaType = MediaType.GDROM;
return;
}
if(ps2BootSectors != null &&
ps2BootSectors.Length == 0x6000)
{
@@ -905,7 +910,11 @@ namespace Aaru.Core.Media.Detection
if(ps2BootSectorsHash == PS2_PAL_HASH ||
ps2BootSectorsHash == PS2_NTSC_HASH ||
ps2BootSectorsHash == PS2_JAPANESE_HASH)
{
mediaType = MediaType.PS2CD;
return;
}
}
if(sector0 != null)
@@ -914,10 +923,18 @@ namespace Aaru.Core.Media.Detection
Array.Copy(sector0, 0, syncBytes, 0, 7);
if(_operaId.SequenceEqual(syncBytes))
{
mediaType = MediaType.ThreeDO;
return;
}
if(_fmTownsBootId.SequenceEqual(syncBytes))
{
mediaType = MediaType.FMTOWNS;
return;
}
}
if(playdia1 != null &&
@@ -931,7 +948,11 @@ namespace Aaru.Core.Media.Detection
if(_playdiaCopyright.SequenceEqual(pd1) &&
_playdiaCopyright.SequenceEqual(pd2))
{
mediaType = MediaType.Playdia;
return;
}
}
if(secondDataSectorNotZero != null)
@@ -940,7 +961,11 @@ namespace Aaru.Core.Media.Detection
Array.Copy(secondDataSectorNotZero, 32, pce, 0, pce.Length);
if(_pcEngineSignature.SequenceEqual(pce))
{
mediaType = MediaType.SuperCDROM2;
return;
}
}
if(firstDataSectorNotZero != null)
@@ -949,7 +974,11 @@ namespace Aaru.Core.Media.Detection
Array.Copy(firstDataSectorNotZero, 0, pcfx, 0, pcfx.Length);
if(_pcFxSignature.SequenceEqual(pcfx))
{
mediaType = MediaType.PCFX;
return;
}
}
if(firstTrackSecondSessionAudio != null)
@@ -976,14 +1005,141 @@ namespace Aaru.Core.Media.Detection
Array.Copy(firstTrackSecondSession, 24, milcd, 0, 2048);
if(Dreamcast.DecodeIPBin(milcd).HasValue)
{
mediaType = MediaType.MilCD;
return;
}
}
// TODO: Detect black and white VideoNow
// TODO: Detect VideoNow XP
if(IsVideoNowColor(videoNowColorFrame))
{
mediaType = MediaType.VideoNowColor;
return;
}
// Check if ISO9660
sense = dev.Read12(out byte[] isoSector, out _, 0, false, true, false, false, 16, 2048, 0, 1, false,
dev.Timeout, out _);
// Sector 16 reads, and contains "CD001" magic?
if(sense ||
isoSector[1] != 0x43 ||
isoSector[2] != 0x44 ||
isoSector[3] != 0x30 ||
isoSector[4] != 0x30 ||
isoSector[5] != 0x31)
return;
// From sectors 16 to 31
uint isoSectorPosition = 16;
while(isoSectorPosition < 32)
{
sense = dev.Read12(out isoSector, out _, 0, false, true, false, false, isoSectorPosition, 2048,
0, 1, false, dev.Timeout, out _);
// If sector cannot be read, break here
if(sense)
break;
// If sector does not contain "CD001" magic, break
if(isoSector[1] != 0x43 ||
isoSector[2] != 0x44 ||
isoSector[3] != 0x30 ||
isoSector[4] != 0x30 ||
isoSector[5] != 0x31)
break;
// If it is PVD or end of descriptor chain, break
if(isoSector[0] == 1 ||
isoSector[0] == 255)
break;
isoSectorPosition++;
}
// If it's not an ISO9660 PVD, return
if(isoSector[0] != 1 ||
isoSector[1] != 0x43 ||
isoSector[2] != 0x44 ||
isoSector[3] != 0x30 ||
isoSector[4] != 0x30 ||
isoSector[5] != 0x31)
return;
uint rootStart = BitConverter.ToUInt32(isoSector, 158);
uint rootLength = BitConverter.ToUInt32(isoSector, 166);
if(rootStart == 0 ||
rootLength == 0)
return;
rootLength /= 2048;
try
{
using var rootMs = new MemoryStream();
for(uint i = 0; i < rootLength; i++)
{
sense = dev.Read12(out isoSector, out _, 0, false, true, false, false, rootStart + i, 2048,
0, 1, false, dev.Timeout, out _);
if(sense)
break;
rootMs.Write(isoSector, 0, 2048);
}
isoSector = rootMs.ToArray();
}
catch
{
return;
}
if(isoSector.Length < 2048)
break;
List<string> rootEntries = new List<string>();
int rootPos = 0;
while(isoSector[rootPos] > 0 &&
rootPos < isoSector.Length &&
rootPos + isoSector[rootPos] <= isoSector.Length)
{
int nameLen = isoSector[rootPos + 32];
byte[] tmpName = new byte[nameLen];
Array.Copy(isoSector, rootPos + 33, tmpName, 0, nameLen);
string name = StringHandlers.CToString(tmpName).ToUpperInvariant();
if(name.EndsWith(";1", StringComparison.InvariantCulture))
name = name.Substring(0, name.Length - 2);
// TODO: Video CD and Super Video CD
// TODO: Neo-Geo CD requires reading the filesystem and checking that the file "/IPL.TXT" is correct
rootEntries.Add(name);
rootPos += isoSector[rootPos];
}
if(rootEntries.Count == 0)
return;
if(rootEntries.Contains("CD32.TM"))
{
mediaType = MediaType.CD32;
return;
}
if(rootEntries.Contains("CDTV.TM"))
mediaType = MediaType.CDTV;
break;
}