GARbro-mirror/ArcFormats/elf/ImageG24.cs

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//! \file ImageG24.cs
//! \date Mon Oct 12 16:14:47 2015
//! \brief Ai5 engine RGB image.
//
// Copyright (C) 2015 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.Compression;
using System.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
using System.Windows.Media.Imaging;
namespace GameRes.Formats.Elf
{
[Export(typeof(ImageFormat))]
public class G24Format : ImageFormat
{
public override string Tag { get { return "G24"; } }
public override string Description { get { return "Ai5 engine RGB image format"; } }
public override uint Signature { get { return 0; } }
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public G24Format ()
{
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Extensions = new string[] { "g24", "g16", "g32" };
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}
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public override ImageMetaData ReadMetaData (IBinaryStream input)
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{
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int x = input.ReadInt16();
int y = input.ReadInt16();
int w = input.ReadInt16();
int h = input.ReadInt16();
if (w <= 0 || w > 0x1000 || h <= 0 || h > 0x1000
|| x < 0 || x > 0x800 || y < 0 || y > 0x800)
return null;
return new ImageMetaData {
Width = (uint)w,
Height = (uint)h,
OffsetX = x,
OffsetY = y,
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BPP = input.Name.HasExtension (".G16") ? 16
: input.Name.HasExtension (".G32") ? 32 : 24
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};
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}
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public override ImageData Read (IBinaryStream stream, ImageMetaData info)
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{
stream.Position = 8;
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int stride = (((int)info.Width * info.BPP / 8 + 3) & -4);
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var pixels = new byte[stride * (int)info.Height];
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using (var reader = new LzssStream (stream.AsStream, LzssMode.Decompress, true))
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{
if (pixels.Length != reader.Read (pixels, 0, pixels.Length))
throw new InvalidFormatException();
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var format = 24 == info.BPP ? PixelFormats.Bgr24
: 32 == info.BPP ? PixelFormats.Bgra32
: PixelFormats.Bgr555;
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return ImageData.CreateFlipped (info, format, null, pixels, stride);
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}
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("G24Format.Write not implemented");
}
}
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[Export(typeof(ImageFormat))]
public class Msk16Format : ImageFormat
{
public override string Tag { get { return "MSK/G16"; } }
public override string Description { get { return "Ai5 engine image mask"; } }
public override uint Signature { get { return 0; } }
public override ImageMetaData ReadMetaData (IBinaryStream input)
{
if (!input.Name.HasExtension (".MSK"))
return null;
var header = input.ReadHeader (4);
int w = header.ToInt16 (0);
int h = header.ToInt16 (2);
if (w * h + 4 != input.Length || w <= 0 || w > 0x1000 || h <= 0 || h > 0x1000)
return null;
return new ImageMetaData {
Width = (uint)w,
Height = (uint)h,
BPP = 8,
};
}
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
{
stream.Position = 4;
var pixels = stream.ReadBytes ((int)info.Width * (int)info.Height);
for (int i = 0; i < pixels.Length; ++i)
{
pixels[i] = (byte)(pixels[i] * 0xFF / 8);
}
return ImageData.Create (info, PixelFormats.Gray8, null, pixels, (int)info.Width);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("Msk16Format.Write not implemented");
}
}
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}