GARbro-mirror/ArcFormats/Pandora/ImageXL24.cs
2017-01-05 05:43:57 +04:00

129 lines
4.7 KiB
C#

//! \file ImageXL24.cs
//! \date Thu Jan 05 02:18:34 2017
//! \brief Pandora.box 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;
using GameRes.Utility;
namespace GameRes.Formats.Terios
{
[Export(typeof(ImageFormat))]
public class Xl24Format : ImageFormat
{
public override string Tag { get { return "XL24"; } }
public override string Description { get { return "\"Pandora.box\" image format"; } }
public override uint Signature { get { return 0x34324C58; } } // 'XL24'
public Xl24Format ()
{
Extensions = new string[] { "bmp" };
}
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
file.Position = 8;
uint width = file.ReadUInt32();
uint height = file.ReadUInt32();
return new ImageMetaData
{
Width = width,
Height = height,
BPP = 24,
};
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
file.Position = 0x10;
int stride = (int)info.Width * 3;
var pixels = new byte[info.Height * stride];
int prev_line = 0;
int cur_line = pixels.Length - stride;
while (cur_line >= 0)
{
int dst = cur_line;
for (int x = (int)info.Width; x > 0; )
{
byte ctl = file.ReadUInt8();
int count;
switch (ctl)
{
case 0:
count = file.ReadUInt8() + 2;
dst += 3 * count;
x -= count;
break;
case 1:
dst += 3;
--x;
break;
case 0x80:
x = 0;
break;
case 0xFF:
file.Read (pixels, dst, 3);
if (--x > 0)
Binary.CopyOverlapped (pixels, dst, dst+3, x * 3);
x = 0;
break;
default:
if (ctl > 0x80)
{
count = ctl - 0x80;
file.Read (pixels, dst, 3);
if (count > 1)
Binary.CopyOverlapped (pixels, dst, dst+3, (count - 1) * 3);
dst += count * 3;
x -= count;
}
else
{
count = 3 * ctl;
file.Read (pixels, dst, count);
dst += count;
x -= ctl;
}
break;
}
}
if (prev_line != 0)
{
for (int i = 0; i < stride; ++i)
pixels[cur_line+i] ^= pixels[prev_line+i];
}
prev_line = cur_line;
cur_line -= stride;
}
return ImageData.Create (info, PixelFormats.Bgr24, null, pixels, stride);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("Xl24Format.Write not implemented");
}
}
}