GARbro-mirror/ArcFormats/Foster/ImageC25.cs

113 lines
4.0 KiB
C#
Raw Normal View History

2017-11-21 03:57:44 +08:00
//! \file ImageC25.cs
//! \date 2017 Nov 20
//! \brief BeF game engine image format.
//
// Copyright (C) 2017 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;
namespace GameRes.Formats.Foster
{
/// <summary>
/// ShiinaRio S25 predecessor.
/// </summary>
[Export(typeof(ImageFormat))]
public class C25Format : C24Format
{
public override string Tag { get { return "C25"; } }
public override string Description { get { return "BeF game engine image format"; } }
public override uint Signature { get { return 0x00353243; } } // 'C25'
public override bool CanWrite { get { return false; } }
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (12);
int count = header.ToInt32 (4);
if (count <= 0)
return null;
return ReadMetaData (file, header.ToUInt32 (8), 32);
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
using (var reader = new C25Decoder (file, (C24MetaData)info, true))
return reader.Image;
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("C25Format.Write not implemented");
}
}
internal class C25Decoder : CDecoderBase
{
public C25Decoder (IBinaryStream file, C24MetaData info, bool leave_open = false)
: base (file, info, PixelFormats.Bgra32, leave_open)
{
}
protected override void Unpack ()
{
var rows = ReadRows();
int dst = 0;
int width = (int)m_info.Width;
foreach (uint row_offset in rows)
{
m_input.Position = row_offset;
for (int x = 0; x < width; )
{
int count = m_input.ReadUInt8();
if (count > 0x7F)
{
int bpp = 3;
count -= 0x80;
if (count >= 0x70)
{
bpp = 4;
count -= 0x70;
}
if (0 == count)
count = m_input.ReadUInt16();
for (int i = 0; i < count; ++i)
{
m_input.Read (m_output, dst, bpp);
dst += bpp;
if (3 == bpp)
m_output[dst++] = 0xFF;
}
}
else
{
if (0 == count)
count = m_input.ReadUInt16();
dst += count * 4;
}
x += count;
}
}
}
}
}