GARbro-mirror/ArcFormats/Tail/ImageCFP.cs
2018-12-23 14:33:48 +04:00

161 lines
6.2 KiB
C#

//! \file ImageCFP.cs
//! \date 2017 Nov 30
//! \brief Tail image format.
//
// Copyright (C) 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
// 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.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
namespace GameRes.Formats.Tail
{
[Export(typeof(ImageFormat))]
public class CfpFormat : ImageFormat
{
public override string Tag { get { return "CFP"; } }
public override string Description { get { return "Tail image format"; } }
public override uint Signature { get { return 0x20424552; } } // 'REB '
public CfpFormat ()
{
Signatures = new uint[] { 0x20424552, 0x5242 }; // 'REB ', 'BR'
}
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0x1C);
return new ImageMetaData {
Width = header.ToUInt32 (0x14),
Height = header.ToUInt32 (0x18),
BPP = 24,
};
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
int stride = ((int)info.Width * 3 + 3) & -4;
int width = ((int)info.Width + 1) & -2;
int height = (int)info.Height;
int total = width * height;
int packed_size = total * 3;
file.Position = file.Length - packed_size;
var input = file.ReadBytes (packed_size);
var pixels = new byte[stride*height];
int src1 = 0;
int src2 = total / 2;
int src3 = total;
int src4 = src2 + total;
int src5 = total * 2;
int src6 = src5 + total / 2;
for (int dst_row = stride * (height - 1); dst_row >= 0; dst_row -= stride)
{
int dst = dst_row;
for (int x = 0; x < width; x += 2)
{
pixels[dst ] = (byte)(input[src2 ] & 0x0F | input[src1 ] << 4);
pixels[dst+3] = (byte)(input[src1++] & 0xF0 | input[src2++] >> 4);
pixels[dst+1] = (byte)(input[src4 ] & 0x0F | input[src3 ] << 4);
pixels[dst+4] = (byte)(input[src3++] & 0xF0 | input[src4++] >> 4);
pixels[dst+2] = (byte)(input[src6 ] & 0x0F | input[src5 ] << 4);
pixels[dst+5] = (byte)(input[src5++] & 0xF0 | input[src6++] >> 4);
dst += 6;
}
}
return ImageData.Create (info, PixelFormats.Bgr24, null, pixels, stride);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("CfpFormat.Write not implemented");
}
}
internal class CfpMetaData : ImageMetaData
{
public int DataOffset;
public int DataLength;
}
[Export(typeof(ImageFormat))]
public class Cfp2Format : ImageFormat
{
public override string Tag { get { return "CFP/REB2"; } }
public override string Description { get { return "Tail transparent bitmap"; } }
public override uint Signature { get { return 0x32424552; } } // 'REB2'
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0x20);
int start_pos = header.ToInt32 (0x10);
if (start_pos < 0x36)
return null;
int width = header.ToInt32 (0x14);
int height = header.ToInt32 (0x18);
var info = new CfpMetaData {
Width = (uint)width,
Height = (uint)height,
BPP = 32,
};
info.DataLength = width * height * 4;
if (0x20 + info.DataLength > file.Length)
info.DataOffset = 0x1C;
else
info.DataOffset = 0x20 + header.ToInt32 (0x1C);
return info;
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var meta = (CfpMetaData)info;
int width = (int)meta.Width;
int height = (int)meta.Height;
int stride = width * 4;
int total = width * height;
file.Position = meta.DataOffset;
var input = file.ReadBytes (meta.DataLength);
var pixels = new byte[stride*height];
int b = 0;
int g = total;
int r = total * 2;
int a = total * 3;
for (int dst_row = stride * (height - 1); dst_row >= 0; dst_row -= stride)
{
int dst = dst_row;
for (int x = 0; x < width; ++x)
{
pixels[dst++] = input[b++];
pixels[dst++] = input[g++];
pixels[dst++] = input[r++];
pixels[dst++] = input[a++];
}
}
return ImageData.Create (info, PixelFormats.Bgra32, null, pixels, stride);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("Cfp2Format.Write not implemented");
}
}
}