mirror of
https://github.com/crskycode/GARbro.git
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f90e2e851c
(BIZ): moved to Adviz folder. (GIZ, GIZ2, BIZ2, PR1): new PC-98 image formats. (DATA, BGM, SED): MyHarvest resource formats. (HTF): compressed image format. (PAK): Mina resource archives. (GCmp): read palette from external resource. (NCG): Nekotaro image format. (BND, TCZ, TSZ): Ponytail Soft PC-98 formats. (NOR): Sophia resource archive. (SDA, PLA): Squadra D resource archives. (UCA): added checks to avoid false positives.
70 lines
2.7 KiB
C#
70 lines
2.7 KiB
C#
//! \file ImageHTF.cs
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//! \date 2023 Oct 07
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//! \brief Huffman-compressed bitmap.
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//
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// Copyright (C) 2023 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using GameRes.Compression;
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using System.ComponentModel.Composition;
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using System.IO;
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using System.Windows.Media.Imaging;
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namespace GameRes.Formats.Jam
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{
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[Export(typeof(ImageFormat))]
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public class HtfFormat : ImageFormat
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{
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public override string Tag => "HTF";
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public override string Description => "Huffman-compressed bitmap";
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public override uint Signature => 0;
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public override ImageMetaData ReadMetaData (IBinaryStream file)
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{
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if (!file.Name.HasExtension (".HTF"))
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return null;
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int unpacked_size = file.ReadInt32();
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if (unpacked_size <= 0 || unpacked_size > 0x1000000)
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return null;
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using (var huff = new HuffmanStream (file.AsStream, true))
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using (var input = new BinaryStream (huff, file.Name))
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{
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return Bmp.ReadMetaData (input);
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}
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}
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public override ImageData Read (IBinaryStream file, ImageMetaData info)
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{
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file.Position = 4;
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using (var input = new HuffmanStream (file.AsStream, true))
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{
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var decoder = new BmpBitmapDecoder (input, BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
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return new ImageData (decoder.Frames[0], info);
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}
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}
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public override void Write (Stream file, ImageData image)
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{
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throw new System.NotImplementedException ("HtfFormat.Write not implemented");
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}
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}
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}
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