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(PGX): use GOpener.LzssUnpack.

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This commit is contained in:
morkt
2018-09-11 17:46:59 +04:00
parent f8a8b4b27a
commit b87eba8f27
1 changed files with 1 additions and 32 deletions
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33
ArcFormats/Glib2/ImagePGX.cs
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@@ -125,38 +125,7 @@ namespace GameRes.Formats.Glib2
static void LzssUnpack (IBinaryStream input, byte[] output) static void LzssUnpack (IBinaryStream input, byte[] output)
{ {
var frame = new byte[0x1000]; GLib.GOpener.LzssUnpack (input.AsStream, output);
int frame_pos = 0xFEE;
int dst = 0;
int bits = 1;
while (dst < output.Length)
{
if (1 == bits)
bits = input.ReadUInt8() | 0x100;
if (0 != (bits & 1))
{
byte b = input.ReadUInt8();
output[dst++] = b;
frame[frame_pos++] = b;
frame_pos &= 0xFFF;
}
else
{
byte lo = input.ReadUInt8();
byte hi = input.ReadUInt8();
int offset = (hi & 0xF0) << 4 | lo;
int count = Math.Min ((~hi & 0xF) + 3, output.Length-dst);
for (int i = 0; i < count; ++i)
{
byte b = frame[offset++ & 0xFFF];
output[dst++] = b;
frame[frame_pos++] = b;
frame_pos &= 0xFFF;
}
}
bits >>= 1;
}
} }
} }