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(Legacy): implemented GDF images.

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morkt 2018-07-25 10:14:02 +04:00
parent 7e31419d8e
commit 7b4159277b
1 changed files with 118 additions and 0 deletions
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Legacy/Mink/ImageDAT.cs Normal file
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//! \file ImageDAT.cs
//! \date 2018 Jul 17
//! \brief Mink compressed bitmap.
//
// Copyright (C) 2018 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;
using System.ComponentModel.Composition;
using System.IO;
using System.Windows.Media.Imaging;
using GameRes.Utility;
// [030214][Mink] Danger Angel ~Ijou Shinka~
namespace GameRes.Formats.Mink
{
internal class MinkMetaData : ImageMetaData
{
public int UnpackedSize;
}
[Export(typeof(ImageFormat))]
public class DatFormat : ImageFormat
{
public override string Tag { get { return "GDF/BMP"; } }
public override string Description { get { return "Mink compressed bitmap"; } }
public override uint Signature { get { return 0; } }
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (9);
int packed_size = header.ToInt32 (1);
int unpacked_size = header.ToInt32 (5);
if (header[0] != 3 || packed_size != file.Length - 9)
return null;
var bmp_header = new byte[56];
Unpack (file, bmp_header);
using (var bmp = new BinMemoryStream (bmp_header))
{
var info = Bmp.ReadMetaData (bmp);
if (null == info)
return null;
return new MinkMetaData {
Width = info.Width,
Height = info.Height,
BPP = info.BPP,
UnpackedSize = unpacked_size,
};
}
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var meta = (MinkMetaData)info;
file.Position = 9;
var pixels = new byte[meta.UnpackedSize];
Unpack (file, pixels);
using (var bmp = new BinMemoryStream (pixels, file.Name))
return Bmp.Read (bmp, info);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("DatFormat.Write not implemented");
}
void Unpack (IBinaryStream input, byte[] output)
{
int offset_bits = input.ReadUInt8();
int count_bits = input.ReadUInt8();
int dst = 0;
using (var bits = new MsbBitStream (input.AsStream, true))
{
while (dst < output.Length)
{
if (bits.GetNextBit() != 0)
{
int v = bits.GetBits (8);
if (v < 0)
break;
output[dst++] = (byte)v;
}
else
{
int src = bits.GetBits (offset_bits);
if (src < 0)
break;
int count = bits.GetBits (count_bits);
if (count < 0)
break;
count = Math.Min (output.Length-dst, count+1);
Binary.CopyOverlapped (output, src, dst, count);
dst += count;
}
}
}
}
}
}