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(CAF): recognize CFP0 compression.

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This commit is contained in:
morkt 2018-09-14 21:01:19 +04:00
parent a7ea6ab355
commit ac584765dd
1 changed files with 56 additions and 3 deletions
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59
ArcFormats/Tail/ArcCAF.cs
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@ -2,7 +2,7 @@
//! \date 2017 Nov 30 //! \date 2017 Nov 30
//! \brief Tail resource archive. //! \brief Tail resource archive.
// //
// Copyright (C) 2017 by morkt // Copyright (C) 2017-2018 by morkt
// //
// Permission is hereby granted, free of charge, to any person obtaining a copy // Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to // of this software and associated documentation files (the "Software"), to
@ -85,11 +85,13 @@ namespace GameRes.Formats.Tail
public override Stream OpenEntry (ArcFile arc, Entry entry) public override Stream OpenEntry (ArcFile arc, Entry entry)
{ {
if (!arc.File.View.AsciiEqual (entry.Offset, "PREN")) bool is_pren = arc.File.View.AsciiEqual (entry.Offset, "PREN");
bool is_cfp0 = !is_pren && arc.File.View.AsciiEqual (entry.Offset, "CFP0");
if (!is_pren && !is_cfp0)
return base.OpenEntry (arc, entry); return base.OpenEntry (arc, entry);
using (var input = arc.File.CreateStream (entry.Offset, entry.Size)) using (var input = arc.File.CreateStream (entry.Offset, entry.Size))
{ {
var data = UnpackPren (input); var data = is_pren ? UnpackPren (input) : UnpackCfp0 (input);
return new BinMemoryStream (data, entry.Name); return new BinMemoryStream (data, entry.Name);
} }
} }
@ -124,5 +126,56 @@ namespace GameRes.Formats.Tail
} }
return output; return output;
} }
byte[] UnpackCfp0 (IBinaryStream input)
{
input.Position = 8;
int unpacked_size = input.ReadInt32();
var output = new byte[unpacked_size];
int dst = 0;
while (dst < output.Length)
{
int cmd = input.ReadByte();
int count = 0;
switch (cmd)
{
case 0:
count = input.ReadUInt8();
input.Read (output, dst, count);
break;
case 1:
count = input.ReadInt32();
input.Read (output, dst, count);
break;
case 2:
{
count = input.ReadUInt8();
byte v = input.ReadUInt8();
for (int i = 0; i < count; ++i)
output[dst+i] = v;
break;
}
case 3:
{
count = input.ReadInt32();
byte v = input.ReadUInt8();
for (int i = 0; i < count; ++i)
output[dst+i] = v;
break;
}
case 6:
int offset = input.ReadUInt16();
count = input.ReadUInt16();
Binary.CopyOverlapped (output, dst-offset, dst, count);
break;
case 15:
case -1:
return output;
}
dst += count;
}
return output;
}
} }
} }