Public-Mirror/GARbro-mirror
1
0
Fork 0
mirror of https://github.com/crskycode/GARbro.git synced 2024-11-27 23:54:02 +08:00
Code Issues Projects Releases Wiki Activity
c396b86c22
GARbro-mirror/ArcFormats/CatSystem/ImageHG3.cs

354 lines
12 KiB
C#
Raw Normal View History

reorganized project directory structure.
2015-08-20 01:40:32 +08:00
//! \file ImageHG3.cs
//! \date Sat Jul 19 17:31:09 2014
//! \brief Frontwing HG3 image format implementation.
//
// Copyright (C) 2014 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
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
using System;
using System.IO;
using System.ComponentModel.Composition;
using System.Windows.Media.Imaging;
using System.Windows.Media;
using GameRes.Compression;
using GameRes.Utility;
namespace GameRes.Formats.CatSystem
{
[Export(typeof(ImageFormat))]
public class Hg3Format : ImageFormat
{
public override string Tag { get { return "HG3"; } }
public override string Description { get { return "Frontwing proprietary image format"; } }
public override uint Signature { get { return 0x332d4748; } }
public override ImageMetaData ReadMetaData (Stream stream)
{
var header = new byte[0x4c];
if (0x4c != stream.Read (header, 0, header.Length))
return null;
if (LittleEndian.ToUInt32 (header, 0) != Signature)
return null;
if (LittleEndian.ToUInt32 (header, 4) != 0x0c)
return null;
if (!Binary.AsciiEqual (header, 0x14, "stdinfo\0"))
return null;
if (0x38 != LittleEndian.ToUInt32 (header, 0x1c))
return null;
if (0x20 != LittleEndian.ToUInt32 (header, 0x2c))
return null;
uint width = LittleEndian.ToUInt32 (header, 0x24); // @@L0
uint height = LittleEndian.ToUInt32 (header, 0x28);
int pos_x = LittleEndian.ToInt32 (header, 0x30);
int pos_y = LittleEndian.ToInt32 (header, 0x34);
pos_x -= LittleEndian.ToInt32 (header, 0x44);
pos_y -= LittleEndian.ToInt32 (header, 0x48);
return new ImageMetaData
{
Width = width,
Height = height,
OffsetX = pos_x,
OffsetY = pos_y,
BPP = 32,
};
}
public override ImageData Read (Stream stream, ImageMetaData info)
{
stream.Position = 0x40;
bool flipped = 0 == (stream.ReadByte() & 1) || info.OffsetY < 0;
stream.Position = 0x4c;
var header = new byte[0x28];
if (0x28 != stream.Read (header, 0, header.Length))
return null;
if (!Binary.AsciiEqual (header, "img0000\0"))
return null;
uint data_size = LittleEndian.ToUInt32 (header, 0x0c);
if (data_size < 0x18)
return null;
if (info.Height != LittleEndian.ToUInt32 (header, 0x14))
return null;
uint packed2_size = LittleEndian.ToUInt32 (header, 0x18);
uint unpacked2_size = LittleEndian.ToUInt32 (header, 0x1c);
uint packed1_size = LittleEndian.ToUInt32 (header, 0x20);
uint unpacked1_size = LittleEndian.ToUInt32 (header, 0x24);
if (packed2_size + packed1_size < packed2_size)
return null;
if (unpacked2_size + unpacked1_size < unpacked2_size)
return null;
long data_pos = stream.Position;
using (var unpacked2 = ZLibCompressor.DeCompress (stream))
{
stream.Position = data_pos + packed2_size;
using (var unpacked1 = ZLibCompressor.DeCompress (stream))
{
var decoder = new Decoder (unpacked1.GetBuffer(), unpacked1_size,
unpacked2.GetBuffer(), unpacked2_size,
info.Width, info.Height);
decoder.Unpack();
var pixels = decoder.Data;
int stride = (int)info.Width * 4;
if (flipped)
use ImageData.Create method instead of BitmapSource.Create.
2015-10-12 16:16:23 +08:00
return ImageData.CreateFlipped (info, PixelFormats.Bgra32, null, pixels, stride);
else
return ImageData.Create (info, PixelFormats.Bgra32, null, pixels, stride);
reorganized project directory structure.
2015-08-20 01:40:32 +08:00
}
}
}
public override void Write (Stream file, ImageData image)
{
throw new NotImplementedException ("Hg3Format.Write not implemented");
}
class Decoder
{
byte[] m_in1;
byte[] m_in2;
byte[] m_image;
uint m_in1_size;
uint m_in2_size;
uint m_dst_size;
uint m_width;
uint m_height;
public byte[] Data { get { return m_image; } }
public Decoder (byte[] in1, uint in1_size, byte[] in2, uint in2_size,
uint width, uint height)
{
m_in1 = in1;
m_in1_size = in1_size;
m_in2 = in2;
m_in2_size = in2_size;
m_width = width;
m_height = height;
m_dst_size = width*height*4;
m_image = new byte[(int)m_dst_size];
}
uint esi;
uint edi;
uint eax;
uint ebx;
uint ecx;
uint edx;
uint L0, L1, L2, L3, L4;
uint m_plane;
public void Unpack ()
{
m_plane = 0;
edi = 0;
esi = 0;
ebx = 0;
eax = m_in1_size;
L0 = m_in2_size;
L1 = 0;
bool skip_first = GetNextBit();
Proc4();
ecx = m_dst_size;
if (eax > m_dst_size)
throw new InvalidFormatException ("Underflow at Hg3Format.Decoder.Unpack()");
m_dst_size -= eax;
ecx >>= 2;
L2 = eax;
L3 = ecx;
L4 = ecx;
for (;;)
{
if (!skip_first)
{
// @@1:
if (0 == L2)
break;
Proc4();
ecx = eax;
if (ecx > L2)
throw new InvalidFormatException ("Overflow at Hg3Format.Decoder.Unpack()");
L2 -= ecx;
eax = 0;
do
Proc2();
while (0 != --ecx);
}
// @@1a:
if (0 == L2)
break;
Proc4();
ecx = eax;
if (ecx > L2 || ecx > L0)
throw new InvalidFormatException ("Overflow (2) at Hg3Format.Decoder.Unpack()");
L2 -= ecx;
L0 -= ecx;
do
{
eax = m_in2[L1++];
Proc2();
}
while (0 != --ecx);
skip_first = false;
}
// @@7:
ecx = m_dst_size;
esi = 0;
if (0 != ecx)
{
eax = 0;
do
Proc2();
while (0 != --ecx);
}
Proc6 (m_width, m_height);
// @@9:
eax = 0;
edx = m_in1_size;
}
void Proc2 () // @@2
{
m_image[edi] = (byte)eax;
edi += 4;
if (0 == --L3)
{
edi = ++m_plane;
L3 = L4;
}
}
bool GetNextBit () // @@3
{
bool carry = 0 != (ebx & 1);
ebx >>= 1;
if (0 == ebx)
{
if (0 == m_in1_size--)
throw new InvalidFormatException ("Hg3Format.Decoder.Underflow at GetNextBit()");
ebx = (uint)(m_in1[esi++] | 0x100);
carry = 0 != (ebx & 1);
ebx >>= 1;
}
return carry;
}
void Proc4 () // @@4
{
ecx = 0;
eax = 0;
do
{
if (ecx >= 0x20)
throw new InvalidFormatException ("Hg3Format.Decoder.Overflow at Proc4");
++ecx;
}
while (!GetNextBit());
++eax;
while (0 != --ecx)
{
eax += eax + (uint)(GetNextBit() ? 1 : 0);
}
}
void Proc6 (uint width, uint height)
{
uint[] table = new uint[0x100];
ecx = 0;
for (uint i = 0; i < 0x100; ++i)
{
eax = 0xffffffff;
edx = i;
do
{
eax >>= 2;
eax |= (edx & 3) << 30;
eax >>= 6;
edx >>= 2;
}
while (0 != (0x80 & eax));
table[i] = eax;
}
ecx = width * height * 4;
for (uint i = 0; i < ecx; i += 4)
{
eax = m_image[i];
edx = table[eax];
edx <<= 2;
eax = m_image[i+1];
edx += table[eax];
edx <<= 2;
eax = m_image[i+2];
edx += table[eax];
edx <<= 2;
eax = m_image[i+3];
edx += table[eax];
m_image[i] = (byte)(edx);
m_image[i+1] = (byte)(edx >> 8);
m_image[i+2] = (byte)(edx >> 16);
m_image[i+3] = (byte)(edx >> 24);
}
edi = 0;
for (int i = 0; i < 4; ++i)
{
eax = m_image[edi];
edx = (uint)(0 == (eax & 1) ? 0 : 0xff);
eax >>= 1;
eax ^= edx;
m_image[edi++] = (byte)eax;
}
ecx = width;
if (0 != --ecx)
{
ecx <<= 2;
do
{
eax = m_image[edi];
edx = (uint)(0 == (eax & 1) ? 0 : 0xff);
eax >>= 1;
eax ^= edx;
eax += m_image[edi-4];
m_image[edi++] = (byte)eax;
}
while (0 != --ecx);
}
ecx = height;
if (0 != --ecx)
{
uint stride = width*4;
ecx *= stride;
do
{
eax = m_image[edi];
edx = (uint)(0 == (eax & 1) ? 0 : 0xff);
eax >>= 1;
eax ^= edx;
eax += m_image[edi-stride];
m_image[edi++] = (byte)eax;
}
while (0 != --ecx);
}
}
}
}
}
Reference in New Issue Copy Permalink