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(KAAS): implemented compression methods 1, 2, 8 and 9.

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morkt
2017-03-11 11:40:30 +04:00
parent 0206bc574e
commit b0329096ff
2 changed files with 322 additions and 72 deletions
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192
ArcFormats/Kaas/ImageKAAS.cs
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@@ -2,7 +2,7 @@
//! \date Sat Apr 11 03:09:41 2015
//! \brief KAAS engine image format implementation.
//
// Copyright (C) 2015 by morkt
// Copyright (C) 2015-2017 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
@@ -46,10 +46,15 @@ namespace GameRes.Formats.KAAS
[Export(typeof(ImageFormat))]
public class PicFormat : ImageFormat
{
public override string Tag { get { return "PIC"; } }
public override string Tag { get { return "PIC/KAAS"; } }
public override string Description { get { return "KAAS engine image format"; } }
public override uint Signature { get { return 0; } }
public PicFormat ()
{
Extensions = new string[] { "" };
}
public override void Write (Stream file, ImageData image)
{
throw new NotImplementedException ("PicFormat.Write not implemented");
@@ -57,26 +62,24 @@ namespace GameRes.Formats.KAAS
public override ImageMetaData ReadMetaData (IBinaryStream stream)
{
int mode = stream.ReadByte();
var header = stream.ReadHeader (0x12);
int mode = header[0];
switch (mode)
{
case 5: case 6:
case 5: case 6: case 8: case 9:
break;
default:
return null;
}
int key = stream.ReadByte();
var header = stream.ReadBytes (0x10);
if (header.Length != 0x10)
return null;
uint width = LittleEndian.ToUInt16 (header, 0);
uint height = LittleEndian.ToUInt16 (header, 2);
int key = header[1];
uint width = LittleEndian.ToUInt16 (header, 2);
uint height = LittleEndian.ToUInt16 (header, 4);
if (0 == width || width > 4096 || 0 == height || height > 4096)
return null;
var file_len = stream.Length;
uint comp_size1 = LittleEndian.ToUInt32 (header, 6);
uint comp_size2 = LittleEndian.ToUInt32 (header, 10);
uint comp_size3 = LittleEndian.ToUInt16 (header, 14);
uint comp_size1 = LittleEndian.ToUInt32 (header, 8);
uint comp_size2 = LittleEndian.ToUInt32 (header, 12);
uint comp_size3 = LittleEndian.ToUInt16 (header, 16);
if (comp_size1 >= file_len || comp_size2 >= file_len || comp_size3 >= file_len)
return null;
return new PicMetaData
@@ -94,15 +97,14 @@ namespace GameRes.Formats.KAAS
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
{
stream.Position = 0x12;
using (var reader = new Reader (stream.AsStream, (PicMetaData)info))
using (var reader = new Reader (stream, (PicMetaData)info))
{
reader.Unpack();
return ImageData.Create (info, PixelFormats.Bgr24, null, reader.Data, (int)info.Width*3);
return ImageData.Create (info, reader.Format, null, reader.Data, reader.Stride);
}
}
internal class Reader : IDisposable
internal sealed class Reader : IDisposable
{
byte[] m_comp0;
byte[] m_comp1;
@@ -111,12 +113,16 @@ namespace GameRes.Formats.KAAS
int m_mode;
int m_key;
public byte[] Data { get { return m_output; } }
public PixelFormat Format { get { return PixelFormats.Bgr24; } }
public byte[] Data { get { return m_output; } }
public int Stride { get; private set; }
public Reader (Stream file, PicMetaData info)
public Reader (IBinaryStream file, PicMetaData info)
{
m_mode = info.Mode;
m_key = info.Key;
Stride = (int)info.Width * 3;
file.Position = 0x12;
if (6 == info.Mode)
{
uint out_len = info.Width * info.Height * 3;
@@ -149,6 +155,8 @@ namespace GameRes.Formats.KAAS
{
case 5: Unpack5(); break;
case 6: Unpack6(); break;
case 8: Unpack8(); break;
case 9: Unpack9(); break;
default:
throw new NotSupportedException ("[KAAS] Not supported image compression");
}
@@ -156,54 +164,52 @@ namespace GameRes.Formats.KAAS
private void Unpack5 ()
{
int i = 0;
int src = 0;
int src0 = 0;
int src1 = 0;
int src2 = 0;
int dst = 0;
int ctl = 1;
int x = 0;
for (;;)
{
// int type = (m_comp0[x/4] >> (x & 3)*2) & 3;
if (1 == ctl)
{
if (x == m_comp0.Length)
if (src0 == m_comp0.Length)
break;
ctl = m_comp0[x++] | 0x100;
ctl = m_comp0[src0++] | 0x100;
}
int type = ctl & 3;
ctl >>= 2;
int count, off;
int count, offset;
switch (type)
{
case 0:
m_output[dst++] = m_comp1[src++];
m_output[dst++] = m_comp1[src1++];
break;
case 1:
count = ((m_comp2[i / 2] >> (4 * (i & 1))) & 0xf) + 2;
off = m_comp1[src++] + 2;
Binary.CopyOverlapped (m_output, dst-off, dst, count);
count = ((m_comp2[src2 / 2] >> (4 * (src2 & 1))) & 0xf) + 2;
++src2;
offset = m_comp1[src1++] + 2;
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
++i;
break;
case 2:
count = LittleEndian.ToUInt16 (m_comp1, src);
count = LittleEndian.ToUInt16 (m_comp1, src1);
if (0 == count)
return;
off = (count & 0xfff) + 2;
src1 += 2;
offset = (count & 0xfff) + 2;
count = (count >> 12) + 2;
Binary.CopyOverlapped (m_output, dst-off, dst, count);
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
src += 2;
break;
default:
off = (((m_comp2[i / 2] << (4 * (2 - (i & 1)))) & 0xf00) | m_comp1[src]) + 2;
count = m_comp1[src+1] + 18;
Binary.CopyOverlapped (m_output, dst-off, dst, count);
offset = (((m_comp2[src2 / 2] << (4 * (2 - (src2 & 1)))) & 0xf00) | m_comp1[src1]) + 2;
count = m_comp1[src1+1] + 18;
++src2;
src1 += 2;
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
src += 2;
++i;
break;
}
}
@@ -216,6 +222,108 @@ namespace GameRes.Formats.KAAS
m_output[i] -= ScrambleTable[conv_base + (i&0xff)];
}
private void Unpack8 ()
{
int src0 = 0;
int src1 = 0;
int src2 = 0;
int dst = 0;
for (;;)
{
int count, offset;
int type = (m_comp0[src0 / 8] >> (src0 & 6)) & 3;
src0 += 2;
if (type == 0)
{
m_output[dst++] = m_comp1[src1++];
m_output[dst++] = m_comp1[src1++];
m_output[dst++] = m_comp1[src1++];
}
else if (1 == type)
{
int code = m_comp1[src1++] + ((m_comp2[src2 / 2] << (4 * (2 - (src2 & 1)))) & 0xf00);
++src2;
count = ((code >> 10) + 1) * 3;
offset = ((code & 0x3FF) + 1) * 3;
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
}
else if (2 == type)
{
int code = LittleEndian.ToUInt16 (m_comp1, src1);
src1 += 2;
count = ((code >> 14) + 1) * 3;
offset = ((code & 0x3FFF) + 1) * 3;
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
}
else
{
int code = ((m_comp2[src2 / 2] << (4 * (4 - (src2 & 1)))) & 0xF0000) | LittleEndian.ToUInt16 (m_comp1, src1);
if (0 == code)
break;
src1 += 2;
++src2;
count = ((code >> 14) + 5) * 3;
offset = ((code & 0x3FFF) + 1) * 3;
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
}
}
}
private void Unpack9 ()
{
int src0 = 0;
int src1 = 0;
int src2 = 0;
int dst = 0;
for (;;)
{
int count, offset;
int type = (m_comp0[src0 / 8] >> (src0 & 6)) & 3;
src0 += 2;
if (0 == type)
{
count = (m_comp0[src0 / 8] >> (src0 & 6)) & 3;
src0 += 2;
count = (count + 1) * 3;
Buffer.BlockCopy (m_comp1, src1, m_output, dst, count);
dst += count;
src1 += count;
}
else
{
if (1 == type)
{
int code = m_comp1[src1++] + ((m_comp2[src2 / 2] << (4 * (2 - (src2 & 1)))) & 0xF00);
++src2;
count = ((code >> 10) + 1) * 3;
offset = ((code & 0x3FF) + 1) * 3;
}
else if (2 == type)
{
int code = LittleEndian.ToUInt16 (m_comp1, src1);
src1 += 2;
count = ((code >> 14) + 1) * 3;
offset = ((code & 0x3FFF) + 1) * 3;
}
else
{
int code = ((m_comp2[src2 / 2] << (4 * (4 - (src2 & 1)))) & 0xf0000) | LittleEndian.ToUInt16 (m_comp1, src1);
if (0 == code)
break;
src1 += 2;
++src2;
count = ((code >> 14) + 5) * 3;
offset = ((code & 0x3FFF) + 1) * 3;
}
Binary.CopyOverlapped (m_output, dst-offset, dst, count);
dst += count;
}
}
}
static readonly byte[] ScrambleTable = new byte[] {
0x29, 0x23, 0xbe, 0x84, 0xe1, 0x6c, 0xd6, 0xae, 0x52, 0x90, 0x49, 0xf1, 0xf1, 0xbb, 0xe9, 0xeb,
0xb3, 0xa6, 0xdb, 0x3c, 0x87, 0x0c, 0x3e, 0x99, 0x24, 0x5e, 0x0d, 0x1c, 0x06, 0xb7, 0x47, 0xde,
@@ -248,5 +356,3 @@ namespace GameRes.Formats.KAAS
}
}
}