GARbro-mirror/ArcFormats/Softpal/ImageBPIC.cs

83 lines
3.3 KiB
C#

//! \file ImageBPIC.cs
//! \date Sun Jan 10 04:12:10 2016
//! \brief Softpal engine image format.
//
// Copyright (C) 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 GameRes.Utility;
using System.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
namespace GameRes.Formats.Softpal
{
[Export(typeof(ImageFormat))]
public class BpicFormat : ImageFormat
{
public override string Tag { get { return "BPIC"; } }
public override string Description { get { return "Softpal engine image format"; } }
public override uint Signature { get { return 0x43495042; } } // 'BPIC'
public override ImageMetaData ReadMetaData (Stream stream)
{
var header = new byte[0x10];
if (header.Length != stream.Read (header, 0, header.Length))
return null;
int pixel_size = LittleEndian.ToInt32 (header, 12);
if (pixel_size != 4 && pixel_size != 3 && pixel_size != 1)
return null;
return new ImageMetaData
{
Width = LittleEndian.ToUInt32(header, 4),
Height = LittleEndian.ToUInt32(header, 8),
BPP = pixel_size * 8,
};
}
public override ImageData Read (Stream stream, ImageMetaData info)
{
stream.Position = 0x10;
int pixel_size = info.BPP/8;
var pixels = new byte[(int)info.Width * (int)info.Height * pixel_size];
if (pixels.Length != stream.Read (pixels, 0, pixels.Length))
throw new EndOfStreamException();
if (pixel_size > 1)
{
for (int i = 2; i < pixels.Length; i += pixel_size)
{
byte t = pixels[i];
pixels[i] = pixels[i-2];
pixels[i-2] = t;
}
}
PixelFormat format = 24 == info.BPP ? PixelFormats.Bgr24 :
8 == info.BPP ? PixelFormats.Gray8 : PixelFormats.Bgra32;
return ImageData.Create (info, format, null, pixels);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("BpicFormat.Write not implemented");
}
}
}