mirror of
https://github.com/crskycode/GARbro.git
synced 2024-10-23 15:48:16 +08:00
505 lines
19 KiB
C#
505 lines
19 KiB
C#
//! \file ImageDGC.cs
|
|
//! \date Tue Jun 02 03:24:27 2015
|
|
//! \brief DAC engine image format.
|
|
//
|
|
// Copyright (C) 2015 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.ComponentModel.Composition;
|
|
using System.IO;
|
|
using System.Windows.Media;
|
|
using GameRes.Utility;
|
|
|
|
namespace GameRes.Formats.Dac
|
|
{
|
|
internal class DgcMetaData : ImageMetaData
|
|
{
|
|
public uint Flags;
|
|
}
|
|
|
|
[Export(typeof(ImageFormat))]
|
|
public class DgcFormat : ImageFormat
|
|
{
|
|
public override string Tag { get { return "DGC"; } }
|
|
public override string Description { get { return "DAC engine image format"; } }
|
|
public override uint Signature { get { return 0x00434744; } } // 'DGC'
|
|
|
|
public override ImageMetaData ReadMetaData (Stream stream)
|
|
{
|
|
using (var input = new ArcView.Reader (stream))
|
|
{
|
|
input.ReadInt32();
|
|
var info = new DgcMetaData();
|
|
info.Flags = input.ReadUInt32();
|
|
info.Width = input.ReadUInt16();
|
|
info.Height = input.ReadUInt16();
|
|
if (info.Width > 0x7fff || info.Height > 0x7fff)
|
|
return null;
|
|
info.BPP = 0 == (info.Flags & Reader.FlagAlphaChannel) ? 24 : 32;
|
|
return info;
|
|
}
|
|
}
|
|
|
|
public override ImageData Read (Stream stream, ImageMetaData info)
|
|
{
|
|
var meta = info as DgcMetaData;
|
|
if (null == meta)
|
|
throw new ArgumentException ("DgcFormat.Read should be supplied with DgcMetaData", "info");
|
|
|
|
stream.Position = 12;
|
|
using (var reader = new Reader (stream, meta))
|
|
{
|
|
reader.Unpack();
|
|
return ImageData.Create (info, reader.Format, null, reader.Data);
|
|
}
|
|
}
|
|
|
|
public override void Write (Stream file, ImageData image)
|
|
{
|
|
throw new System.NotImplementedException ("DgcFormat.Write not implemented");
|
|
}
|
|
|
|
internal class Reader : IDataUnpacker, IDisposable
|
|
{
|
|
BinaryReader m_input;
|
|
byte[] m_output;
|
|
readonly int m_width;
|
|
readonly int m_height;
|
|
readonly int m_max_dict_size;
|
|
readonly int m_pixel_size;
|
|
readonly int m_stride;
|
|
readonly bool m_use_dict;
|
|
readonly bool m_has_alpha;
|
|
|
|
public const int FlagAlphaChannel = 0x4000000;
|
|
public const int FlagUseDictionary = 0x2000000;
|
|
|
|
public byte[] Data { get { return m_output; } }
|
|
public PixelFormat Format { get; private set; }
|
|
|
|
public Reader (Stream input, DgcMetaData info)
|
|
{
|
|
m_width = (int)info.Width;
|
|
m_height = (int)info.Height;
|
|
m_input = new ArcView.Reader (input);
|
|
m_use_dict = 0 != (info.Flags & FlagUseDictionary);
|
|
m_has_alpha = 0 != (info.Flags & FlagAlphaChannel);
|
|
m_max_dict_size = (int)(info.Flags & 0xffffff);
|
|
if (m_has_alpha)
|
|
{
|
|
Format = PixelFormats.Bgra32;
|
|
m_pixel_size = 4;
|
|
}
|
|
else
|
|
{
|
|
Format = PixelFormats.Bgr24;
|
|
m_pixel_size = 3;
|
|
}
|
|
m_stride = m_width * m_pixel_size;
|
|
m_output = new byte[m_stride*m_height];
|
|
}
|
|
|
|
public void Unpack ()
|
|
{
|
|
if (!m_use_dict)
|
|
UnpackLZ();
|
|
else if (m_max_dict_size > 0x100)
|
|
UnpackWithDictLarge();
|
|
else
|
|
UnpackWithDictSmall();
|
|
if (m_has_alpha)
|
|
UnpackAlphaChannel();
|
|
}
|
|
|
|
void UnpackWithDictLarge ()
|
|
{
|
|
var dict = new byte[m_max_dict_size * 3];
|
|
for (int y = 0; y < m_height;)
|
|
{
|
|
int dict_len = m_input.ReadUInt16() + 1;
|
|
m_input.Read (dict, 0, dict_len * 3);
|
|
|
|
for (int y_end = m_input.ReadUInt16(); y < y_end; y++)
|
|
{
|
|
var dst = y * m_stride;
|
|
short line_size = m_input.ReadInt16();
|
|
if (line_size > 0)
|
|
{
|
|
if (dict_len > 256)
|
|
UnpackLine16 (dst, line_size, dict);
|
|
else
|
|
UnpackLine8 (dst, line_size, dict);
|
|
}
|
|
else if (line_size < 0)
|
|
{
|
|
var src_line = (y + line_size) * m_stride;
|
|
Buffer.BlockCopy (m_output, src_line, m_output, dst, m_stride);
|
|
}
|
|
else
|
|
{
|
|
for (int x = 0; x < m_width; x++)
|
|
{
|
|
int i;
|
|
if (dict_len > 256)
|
|
i = m_input.ReadUInt16();
|
|
else
|
|
i = m_input.ReadByte();
|
|
i *= 3;
|
|
m_output[dst] = dict[i];
|
|
m_output[dst+1] = dict[i+1];
|
|
m_output[dst+2] = dict[i+2];
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void UnpackWithDictSmall ()
|
|
{
|
|
var dict = new byte[m_max_dict_size * 3];
|
|
|
|
int dict_len = m_input.ReadByte() + 1;
|
|
m_input.Read (dict, 0, dict_len * 3);
|
|
|
|
for (int y = 0; y < m_height; y++)
|
|
{
|
|
int dst = y * m_stride;
|
|
int line_size = m_input.ReadInt16();
|
|
if (line_size > 0)
|
|
{
|
|
UnpackLine8 (dst, line_size, dict);
|
|
}
|
|
else if (line_size < 0)
|
|
{
|
|
var src_line = (y + line_size) * m_stride;
|
|
Buffer.BlockCopy (m_output, src_line, m_output, dst, m_stride);
|
|
}
|
|
else
|
|
{
|
|
for (int x = 0; x < m_width; x++)
|
|
{
|
|
int i = 3 * m_input.ReadByte();
|
|
m_output[dst] = dict[i];
|
|
m_output[dst+1] = dict[i+1];
|
|
m_output[dst+2] = dict[i+2];
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void UnpackLZ ()
|
|
{
|
|
for (int y = 0; y < m_height; y++)
|
|
{
|
|
int dst = y * m_stride;
|
|
short line_size = m_input.ReadInt16();
|
|
if (line_size > 0)
|
|
{
|
|
UnpackLineLZ (dst, line_size);
|
|
}
|
|
else if (line_size < 0)
|
|
{
|
|
int src_line = (y + line_size) * m_stride;
|
|
Buffer.BlockCopy (m_output, src_line, m_output, dst, m_stride);
|
|
}
|
|
else
|
|
{
|
|
for (int x = 0; x < m_width; x++)
|
|
{
|
|
m_input.Read (m_output, dst, 3);
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void UnpackAlphaChannel()
|
|
{
|
|
int alpha_pos = 3;
|
|
for (int y = 0; y < m_height; y++)
|
|
{
|
|
int dst = alpha_pos + y * m_stride;
|
|
|
|
short line_size = m_input.ReadInt16();
|
|
if (line_size > 0)
|
|
{
|
|
UnpackLineAlpha (dst, line_size);
|
|
}
|
|
else if (line_size < 0)
|
|
{
|
|
int src_line = alpha_pos + (y + line_size) * m_stride;
|
|
for (int x = 0; x < m_width; x++)
|
|
{
|
|
m_output[dst] = m_output[src_line];
|
|
dst += m_pixel_size;
|
|
src_line += m_pixel_size;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (int x = 0; x < m_width; x++)
|
|
{
|
|
m_output[dst] = m_input.ReadByte();
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void UnpackLine16 (int dst, int length, byte[] dict)
|
|
{
|
|
while (length > 0)
|
|
{
|
|
short ctl = m_input.ReadInt16();
|
|
length -= 2;
|
|
if (0 != (ctl & 0x8000))
|
|
{
|
|
int count = (ctl & 0x3F) + 2;
|
|
int offset = ctl >> 6;
|
|
offset *= m_pixel_size;
|
|
count *= m_pixel_size;
|
|
Binary.CopyOverlapped (m_output, dst+offset, dst, count);
|
|
dst += count;
|
|
}
|
|
else
|
|
{
|
|
int count = ctl & 0x1FFF;
|
|
if (0 != (ctl & 0x4000))
|
|
{
|
|
int index = 0;
|
|
if (0 != (ctl & 0x2000))
|
|
{
|
|
index = m_input.ReadByte();
|
|
--length;
|
|
}
|
|
else
|
|
{
|
|
index = m_input.ReadUInt16();
|
|
length -= 2;
|
|
}
|
|
index *= 3;
|
|
while (0 != count--)
|
|
{
|
|
m_output[dst] = dict[index];
|
|
m_output[dst+1] = dict[index+1];
|
|
m_output[dst+2] = dict[index+2];
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
while (0 != count--)
|
|
{
|
|
int index = 0;
|
|
if (0 != (ctl & 0x2000))
|
|
{
|
|
index = m_input.ReadByte();
|
|
--length;
|
|
}
|
|
else
|
|
{
|
|
index = m_input.ReadUInt16();
|
|
length -= 2;
|
|
}
|
|
index *= 3;
|
|
m_output[dst] = dict[index];
|
|
m_output[dst+1] = dict[index+1];
|
|
m_output[dst+2] = dict[index+2];
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void UnpackLine8 (int dst, int length, byte[] dict)
|
|
{
|
|
while (length > 0)
|
|
{
|
|
byte ctl = m_input.ReadByte();
|
|
--length;
|
|
if (0 != ctl)
|
|
{
|
|
int index = 3 * m_input.ReadByte();
|
|
--length;
|
|
while (0 != ctl--)
|
|
{
|
|
m_output[dst] = dict[index];
|
|
m_output[dst+1] = dict[index+1];
|
|
m_output[dst+2] = dict[index+2];
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ctl = m_input.ReadByte();
|
|
--length;
|
|
if (0 == (ctl & 0x80))
|
|
{
|
|
for (int count = ctl + 2; 0 != count; --count)
|
|
{
|
|
int src = 3 * m_input.ReadByte();
|
|
--length;
|
|
m_output[dst] = dict[src];
|
|
m_output[dst+1] = dict[src+1];
|
|
m_output[dst+2] = dict[src+2];
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int offset = (short)((ctl << 8) | m_input.ReadByte());
|
|
--length;
|
|
int count = (offset & 0x3F) + 4;
|
|
offset >>= 6;
|
|
offset *= m_pixel_size;
|
|
count *= m_pixel_size;
|
|
Binary.CopyOverlapped (m_output, dst+offset, dst, count);
|
|
dst += count;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void UnpackLineAlpha (int dst, int length)
|
|
{
|
|
while (length > 0)
|
|
{
|
|
byte ctl = m_input.ReadByte();
|
|
--length;
|
|
if (0 != ctl)
|
|
{
|
|
byte alpha = m_input.ReadByte();
|
|
--length;
|
|
while (0 != ctl--)
|
|
{
|
|
m_output[dst] = alpha;
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ctl = m_input.ReadByte();
|
|
--length;
|
|
if (0 == (ctl & 0x80))
|
|
{
|
|
int count = ctl + 2;
|
|
length -= count;
|
|
while (0 != count--)
|
|
{
|
|
m_output[dst] = m_input.ReadByte();
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int offset = (short)((ctl << 8) | m_input.ReadByte());
|
|
--length;
|
|
int count = (offset & 0x3F) + 4;
|
|
offset >>= 6;
|
|
offset *= m_pixel_size;
|
|
while (0 != count--)
|
|
{
|
|
m_output[dst] = m_output[dst+offset];
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void UnpackLineLZ (int dst, int length)
|
|
{
|
|
while (length > 0)
|
|
{
|
|
short ctl = m_input.ReadInt16();
|
|
length -= 2;
|
|
|
|
if (0 != (ctl & 0x8000))
|
|
{
|
|
int count = (ctl & 0x3F) + 1;
|
|
int offset = ctl >> 6;
|
|
offset *= m_pixel_size;
|
|
|
|
while (0 != count--)
|
|
{
|
|
m_output[dst] = m_output[dst+offset];
|
|
m_output[dst+1] = m_output[dst+offset+1];
|
|
m_output[dst+2] = m_output[dst+offset+2];
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int count = ctl & 0x1FFF;
|
|
if (0 != (ctl & 0x4000))
|
|
{
|
|
m_input.Read (m_output, dst, 3);
|
|
length -= 3;
|
|
dst += m_pixel_size;
|
|
if (--count > 0)
|
|
{
|
|
count *= m_pixel_size;
|
|
Binary.CopyOverlapped (m_output, dst-m_pixel_size, dst, count);
|
|
dst += count;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
while (0 != count--)
|
|
{
|
|
m_input.Read (m_output, dst, 3);
|
|
length -= 3;
|
|
dst += m_pixel_size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#region IDisposable Members
|
|
bool disposed = false;
|
|
|
|
public void Dispose ()
|
|
{
|
|
Dispose (true);
|
|
GC.SuppressFinalize (this);
|
|
}
|
|
|
|
protected virtual void Dispose (bool disposing)
|
|
{
|
|
if (!disposed)
|
|
{
|
|
if (disposing)
|
|
{
|
|
m_input.Dispose();
|
|
}
|
|
disposed = true;
|
|
}
|
|
}
|
|
#endregion
|
|
}
|
|
}
|
|
}
|