mirror of
https://github.com/crskycode/GARbro.git
synced 2024-10-23 23:58:17 +08:00
243 lines
8.9 KiB
C#
243 lines
8.9 KiB
C#
//! \file ImageCPB.cs
|
|
//! \date Wed Apr 22 11:08:13 2015
|
|
//! \brief AZ system image format implementation.
|
|
//
|
|
// Copyright (C) 2015-2016 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;
|
|
using System.Windows.Media;
|
|
using System.Windows.Media.Imaging;
|
|
using GameRes.Compression;
|
|
using GameRes.Utility;
|
|
|
|
namespace GameRes.Formats.AZSys
|
|
{
|
|
internal class CpbMetaData : ImageMetaData
|
|
{
|
|
public int Type;
|
|
public int Version;
|
|
public uint[] Channel = new uint[4];
|
|
public uint DataOffset;
|
|
}
|
|
|
|
[Export(typeof(ImageFormat))]
|
|
public class CpbFormat : ImageFormat
|
|
{
|
|
public override string Tag { get { return "CPB"; } }
|
|
public override string Description { get { return "AZ system image format"; } }
|
|
public override uint Signature { get { return 0x1a425043; } } // 'CPB\x1a'
|
|
|
|
public override void Write (Stream file, ImageData image)
|
|
{
|
|
throw new System.NotImplementedException ("CpbFormat.Write not implemented");
|
|
}
|
|
|
|
public override ImageMetaData ReadMetaData (IBinaryStream file)
|
|
{
|
|
file.Position = 4;
|
|
int type = file.ReadByte();
|
|
int bpp = file.ReadByte();
|
|
if (24 != bpp && 32 != bpp)
|
|
throw new NotSupportedException ("Not supported CPB image format");
|
|
int version = file.ReadInt16();
|
|
if (1 != version && 0 != version)
|
|
throw new NotSupportedException ("Not supported CPB image version");
|
|
var info = new CpbMetaData {
|
|
Type = type,
|
|
Version = version,
|
|
BPP = bpp,
|
|
};
|
|
if (1 == version)
|
|
{
|
|
file.ReadUInt32();
|
|
info.Width = file.ReadUInt16();
|
|
info.Height = file.ReadUInt16();
|
|
info.Channel[0] = file.ReadUInt32();
|
|
info.Channel[1] = file.ReadUInt32();
|
|
info.Channel[2] = file.ReadUInt32();
|
|
info.Channel[3] = file.ReadUInt32();
|
|
}
|
|
else
|
|
{
|
|
info.Width = file.ReadUInt16();
|
|
info.Height = file.ReadUInt16();
|
|
file.ReadUInt32();
|
|
info.Channel[0] = file.ReadUInt32();
|
|
info.Channel[1] = file.ReadUInt32();
|
|
info.Channel[2] = file.ReadUInt32();
|
|
info.Channel[3] = file.ReadUInt32();
|
|
}
|
|
info.DataOffset = (uint)file.Position;
|
|
return info;
|
|
}
|
|
|
|
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
|
|
{
|
|
var reader = new Reader (stream.AsStream, (CpbMetaData)info);
|
|
reader.Unpack();
|
|
return ImageData.Create (info, reader.Format, reader.Palette, reader.Data);
|
|
}
|
|
|
|
internal class Reader
|
|
{
|
|
int m_width;
|
|
int m_height;
|
|
int m_bpp;
|
|
Stream m_input;
|
|
byte[] m_output;
|
|
uint[] m_channel;
|
|
CpbMetaData m_info;
|
|
|
|
public PixelFormat Format { get; private set; }
|
|
public BitmapPalette Palette { get; private set; }
|
|
public byte[] Data { get { return m_output; } }
|
|
|
|
public Reader (Stream input, CpbMetaData info)
|
|
{
|
|
m_width = (int)info.Width;
|
|
m_height = (int)info.Height;
|
|
m_info = info;
|
|
m_bpp = info.BPP;
|
|
m_channel = info.Channel;
|
|
m_output = new byte[m_width * m_height * 4];
|
|
if (8 == m_bpp)
|
|
Format = PixelFormats.Indexed8;
|
|
else if (24 == m_bpp)
|
|
Format = PixelFormats.Bgr32;
|
|
else
|
|
Format = PixelFormats.Bgra32;
|
|
m_input = input;
|
|
m_input.Position = info.DataOffset;
|
|
|
|
if (1 == m_info.Version)
|
|
{
|
|
StreamMap = new byte[] { 0, 3, 1, 2 };
|
|
ChannelMap = new byte[] { 3, 0, 1, 2 };
|
|
}
|
|
else
|
|
{
|
|
StreamMap = new byte[] { 0, 1, 2, 3 };
|
|
ChannelMap = new byte[] { 2, 1, 0, 3 };
|
|
}
|
|
}
|
|
|
|
byte[] StreamMap;
|
|
byte[] ChannelMap;
|
|
|
|
public void Unpack ()
|
|
{
|
|
if (0 == m_info.Version && 3 == m_info.Type)
|
|
UnpackV3();
|
|
else
|
|
UnpackV0();
|
|
}
|
|
|
|
void UnpackV0 ()
|
|
{
|
|
byte[] channel = new byte[m_width*m_height];
|
|
long start_pos = m_input.Position;
|
|
for (int i = 0; i < 4; ++i)
|
|
{
|
|
if (0 == m_channel[StreamMap[i]])
|
|
continue;
|
|
m_input.Position = start_pos + 4; // skip crc32
|
|
using (var input = new ZLibStream (m_input, CompressionMode.Decompress, true))
|
|
{
|
|
int channel_size = input.Read (channel, 0, channel.Length);
|
|
int dst = ChannelMap[i];
|
|
for (int j = 0; j < channel_size; ++j)
|
|
{
|
|
m_output[dst] = channel[j];
|
|
dst += 4;
|
|
}
|
|
}
|
|
start_pos += m_channel[StreamMap[i]];
|
|
}
|
|
}
|
|
|
|
void UnpackV3 ()
|
|
{
|
|
byte[] channel = new byte[m_width*m_height];
|
|
long start_pos = m_input.Position;
|
|
for (int i = 0; i < 4; ++i)
|
|
{
|
|
int packed_size = (int)m_channel[StreamMap[i]];
|
|
if (0 == packed_size)
|
|
continue;
|
|
m_input.Position = start_pos;
|
|
int channel_size = Decompress (packed_size, channel);
|
|
int dst = ChannelMap[i];
|
|
for (int j = 0; j < channel_size; ++j)
|
|
{
|
|
m_output[dst] = channel[j];
|
|
dst += 4;
|
|
}
|
|
start_pos += packed_size;
|
|
}
|
|
}
|
|
|
|
int Decompress (int input_size, byte[] output)
|
|
{
|
|
var input = new byte[input_size];
|
|
if (input_size != m_input.Read (input, 0, input_size))
|
|
throw new EndOfStreamException();
|
|
int src1 = 0x14;
|
|
int src2 = src1 + LittleEndian.ToInt32 (input, 4);
|
|
int src3 = src2 + LittleEndian.ToInt32 (input, 8);
|
|
int remaining = LittleEndian.ToInt32 (input, 0x10);
|
|
int dst = 0;
|
|
int mask = 0x80;
|
|
while (remaining > 0)
|
|
{
|
|
int count;
|
|
if (0 != (mask & input[src1]))
|
|
{
|
|
int offset = LittleEndian.ToUInt16 (input, src2);
|
|
src2 += 2;
|
|
count = (offset >> 13) + 3;
|
|
offset = (offset & 0x1FFF) + 1;
|
|
Binary.CopyOverlapped (output, dst-offset, dst, count);
|
|
}
|
|
else
|
|
{
|
|
count = input[src3++] + 1;
|
|
Buffer.BlockCopy (input, src3, output, dst, count);
|
|
src3 += count;
|
|
}
|
|
dst += count;
|
|
remaining -= count;
|
|
mask >>= 1;
|
|
if (0 == mask)
|
|
{
|
|
++src1;
|
|
mask = 0x80;
|
|
}
|
|
}
|
|
return dst;
|
|
}
|
|
}
|
|
}
|
|
}
|