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(MAIKA): adjusted scramble scheme detection.

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This commit is contained in:
morkt 2020-03-30 17:32:08 +04:00
parent d90e65c6a6
commit 8cd3cac054
2 changed files with 23 additions and 10 deletions
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7
ArcFormats/Maika/ArcMIK01.cs
View File

@ -39,6 +39,11 @@ namespace GameRes.Formats.Maika
public override bool IsHierarchic { get { return false; } } public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } } public override bool CanWrite { get { return false; } }
public MikOpener ()
{
Signatures = new uint[] { 0x304B494D, 0x30475355 }; // 'MIK01', 'USG01'
}
public override ArcFile TryOpen (ArcView file) public override ArcFile TryOpen (ArcView file)
{ {
if (!file.View.AsciiEqual (4, "1\x1A\0")) if (!file.View.AsciiEqual (4, "1\x1A\0"))
@ -61,7 +66,7 @@ namespace GameRes.Formats.Maika
offset += entry.Size; offset += entry.Size;
index_offset += 0x10; index_offset += 0x10;
} }
return new ArcFile (file, this, dir); return GetArchive (file, dir);
} }
} }
} }

26
ArcFormats/Maika/ArcMK2.cs
View File

@ -33,7 +33,7 @@ using GameRes.Utility;
namespace GameRes.Formats.Maika namespace GameRes.Formats.Maika
{ {
[Serializable] [Serializable]
internal class ScrambleScheme public class ScrambleScheme
{ {
public uint ScrambledSize; public uint ScrambledSize;
public Tuple<byte, byte>[] ScrambleMap; public Tuple<byte, byte>[] ScrambleMap;
@ -75,7 +75,6 @@ namespace GameRes.Formats.Maika
if (!IsSaneCount (count)) if (!IsSaneCount (count))
return null; return null;
string arc_id = file.View.ReadString (0, 5);
uint base_offset = file.View.ReadUInt16 (8); uint base_offset = file.View.ReadUInt16 (8);
uint index_offset = file.View.ReadUInt32 (0xE); uint index_offset = file.View.ReadUInt32 (0xE);
if (index_offset >= file.MaxOffset) if (index_offset >= file.MaxOffset)
@ -114,8 +113,14 @@ namespace GameRes.Formats.Maika
break; break;
current_offset += 6; current_offset += 6;
} }
return GetArchive (file, dir);
}
internal ArcFile GetArchive (ArcView file, List<Entry> dir)
{
if (0 == dir.Count) if (0 == dir.Count)
return null; return null;
string arc_id = file.View.ReadString (0, 5);
ScrambleScheme scheme; ScrambleScheme scheme;
if (!KnownSchemes.TryGetValue (arc_id, out scheme)) if (!KnownSchemes.TryGetValue (arc_id, out scheme))
scheme = DefaultScheme; scheme = DefaultScheme;
@ -172,14 +177,17 @@ namespace GameRes.Formats.Maika
} }
}; };
static readonly ScrambleScheme ArScheme = new ScrambleScheme {
ScrambledSize = 15,
ScrambleMap = new Tuple<byte,byte>[] {
new Tuple<byte, byte> (7, 13),
new Tuple<byte, byte> (9, 14)
}
};
Dictionary<string, ScrambleScheme> KnownSchemes = new Dictionary<string, ScrambleScheme> { Dictionary<string, ScrambleScheme> KnownSchemes = new Dictionary<string, ScrambleScheme> {
{ "AR2.0", new ScrambleScheme { { "AR2.0", ArScheme },
ScrambledSize = 15, { "USG01", ArScheme },
ScrambleMap = new Tuple<byte,byte>[] {
new Tuple<byte, byte> (7, 13),
new Tuple<byte, byte> (9, 14)
}
} }
}; };
} }