GARbro-mirror/Legacy/Dice/ImageRBP.cs

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//! \file ImageRBP.cs
//! \date 2017 Dec 11
//! \brief DiceSystem 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.Dice
{
internal class RbpMetaData : ImageMetaData
{
public int DataOffset;
}
[Export(typeof(ImageFormat))]
public class RbpFormat : ImageFormat
{
public override string Tag { get { return "RBP"; } }
public override string Description { get { return "DiceSystem image format"; } }
public override uint Signature { get { return 0x31504252; } } // 'RBP1'
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0x14);
return new RbpMetaData {
BPP = header.ToInt32 (4) == 1 ? 24 : 32,
Width = header.ToUInt32 (8),
Height = header.ToUInt32 (0xC),
DataOffset = header.ToInt32 (0x10),
};
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var meta = (RbpMetaData)info;
file.Position = meta.DataOffset;
int stride = 4 * (int)meta.Width;
var pixels = new byte[stride * (int)meta.Height];
if (24 == meta.BPP)
{
for (int i = 0; i < pixels.Length; i += 4)
{
int pixel = file.ReadInt24();
pixels[i ] = (byte) (pixel << 3);
pixels[i+1] = (byte)((pixel >> 3) & 0xFC);
pixels[i+2] = (byte)((pixel >> 8) & 0xF8);
pixels[i+3] = (byte)((pixel >> 16) * 0xFF / 0x3F);
}
}
else
{
file.Read (pixels, 0, pixels.Length);
for (int i = 3; i < pixels.Length; i += 4)
{
byte alpha = pixels[i];
if (alpha != 0)
pixels[i] = (byte)(alpha * 0xFF / 0x3F);
}
}
return ImageData.Create (info, PixelFormats.Bgra32, null, pixels, stride);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("RbpFormat.Write not implemented");
}
}
}