GARbro-mirror/Legacy/Force/ImageDZP.cs

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2018-08-09 12:38:24 +08:00
//! \file ImageDZP.cs
//! \date 2018 Jul 31
//! \brief Force image format.
//
// 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.ComponentModel.Composition;
using System.IO;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using GameRes.Utility;
// [990807][Force] Hajimete no Otsukai ~first adventure of little witch~
namespace GameRes.Formats.Force
{
[Export(typeof(ImageFormat))]
public class DzpFormat : ImageFormat
{
public override string Tag { get { return "DZP"; } }
public override string Description { get { return "Force image format"; } }
public override uint Signature { get { return 0; } }
public DzpFormat ()
{
Signatures = new uint[] { 24, 8 };
}
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
if (!file.Name.HasExtension (".dzp"))
return null;
var header = file.ReadHeader (12);
int bpp = header.ToInt32 (0);
uint width = header.ToUInt32 (4);
uint height = header.ToUInt32 (8);
if (0 == width || width > 0x1000 || 0 == height || height > 0x1000)
return null;
return new ImageMetaData { Width = width * 4, Height = height * 4, BPP = bpp };
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
file.Position = 12;
BitmapPalette palette = null;
if (8 == info.BPP)
palette = ReadPalette (file.AsStream);
int stride = (int)info.Width * (info.BPP / 8);
var pixels = new byte[stride * (int)info.Height];
PixelFormat format;
if (8 == info.BPP)
{
Unpack8BPP (file, pixels);
format = PixelFormats.Indexed8;
}
else if (24 == info.BPP)
{
Unpack24BPP (file, pixels);
format = PixelFormats.Bgr24;
}
else
throw new InvalidFormatException();
return ImageData.Create (info, format, palette, pixels, stride);
}
void Unpack8BPP (IBinaryStream input, byte[] output)
{
int dst = 0;
while (dst < output.Length && input.PeekByte() != -1)
{
byte v = input.ReadUInt8();
int count = input.ReadByte();
for (int i = 0; i < count; ++i)
output[dst++] = v;
}
}
void Unpack24BPP (IBinaryStream input, byte[] output)
{
int dst = 0;
while (dst < output.Length && input.PeekByte() != -1)
{
input.Read (output, dst, 3);
int count = input.ReadByte();
if (count > 0)
{
count *= 3;
Binary.CopyOverlapped (output, dst, dst+3, count-3);
dst += count;
}
}
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("DzpFormat.Write not implemented");
}
}
}