GARbro-mirror/ArcFormats/Mixwill/ImagePB00.cs

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//! \file ImagePB00.cs
//! \date Sat Jan 14 23:58:54 2017
//! \brief Mixwill soft 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.Mixwill
{
internal class Pb00MetaData :ImageMetaData
{
public readonly int[] ChannelTable = new int[4];
}
[Export(typeof(ImageFormat))]
public class Pb00Format : ImageFormat
{
public override string Tag { get { return "PB00"; } }
public override string Description { get { return "Mixwill soft image format"; } }
public override uint Signature { get { return 0x30304250; } } // 'PB00'
public Pb00Format ()
{
Extensions = new string[] { "pb" };
}
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0x20);
var info = new Pb00MetaData
{
Width = header.ToUInt32 (8),
Height = header.ToUInt32 (0xC),
BPP = header.ToInt32 (4) * 8,
};
for (int i = 0; i < 4; ++i)
info.ChannelTable[i] = header.ToInt32 (0x10 + i * 4);
return info;
}
static readonly byte[] RgbOrder = { 2, 1, 0, 3 };
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var meta = (Pb00MetaData)info;
int channels = info.BPP/8;
var pixels = new byte[info.Width * info.Height * channels];
long channel_pos = 0x20;
for (int i = 0; i < channels; ++i)
{
file.Position = channel_pos;
int length = meta.ChannelTable[i];
channel_pos += length;
int dst = RgbOrder[i];
for (int j = 0; j < length; ++j)
{
int b = file.ReadInt8();
if (b >= 0)
{
for (int count = b + 1; count > 0; --count)
{
pixels[dst] = file.ReadUInt8();
dst += channels;
++j;
}
}
else
{
byte c = file.ReadUInt8();
for (int count = 1 - b; count > 0; --count)
{
pixels[dst] = c;
dst += channels;
}
++j;
}
}
}
PixelFormat format;
if (4 == channels)
format = PixelFormats.Bgra32;
else
format = PixelFormats.Bgr24;
return ImageData.Create (info, format, null, pixels);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("Pb00Format.Write not implemented");
}
}
}