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implemented GHP3 images.

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morkt 2017-12-29 01:19:22 +04:00
parent 0f8c5ce023
commit 150047a617
1 changed files with 105 additions and 0 deletions
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ArcFormats/Succubus/ImageGH.cs Normal file
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//! \file ImageGH.cs
//! \date 2017 Dec 26
//! \brief Succubus 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;
namespace GameRes.Formats.Succubus
{
internal class GhpMetaData : ImageMetaData
{
public int Colors;
public uint PaletteOffset;
public uint DataOffset;
}
[Export(typeof(ImageFormat))]
public class GhFormat : ImageFormat
{
public override string Tag { get { return "GH"; } }
public override string Description { get { return "Succubus image format"; } }
public override uint Signature { get { return 0x33504847; } } // 'GHP3'
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (0x28);
return new GhpMetaData {
Width = header.ToUInt16 (0xC),
Height = header.ToUInt16 (0xE),
BPP = 8,
Colors = header.ToUInt16 (0x10),
PaletteOffset = header.ToUInt32 (0x18),
DataOffset = header.ToUInt32 (0x24),
};
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var reader = new Ghp3Reader (file, (GhpMetaData)info);
reader.Unpack();
return ImageData.Create (info, reader.Format, reader.Palette, reader.Data, reader.Stride);
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("GhFormat.Write not implemented");
}
}
internal class Ghp3Reader
{
IBinaryStream m_input;
GhpMetaData m_info;
byte[] m_output;
public PixelFormat Format { get { return PixelFormats.Indexed8; } }
public BitmapPalette Palette { get; private set; }
public int Stride { get { return m_stride; } }
public byte[] Data { get { return m_output; } }
public Ghp3Reader (IBinaryStream input, GhpMetaData info)
{
m_input = input;
m_info = info;
m_stride = ((int)info.Width + 3) & ~3;
}
public void Unpack ()
{
m_input.Position = m_info.PaletteOffset;
Palette = ImageFormat.ReadPalette (m_input.AsStream, m_info.Colors, PaletteFormat.Bgr);
m_input.Position = m_info.DataOffset;
int image_size = (m_stride * (int)m_info.Height + 0x1F) & ~0x1F;
int table_size = image_size >> 3;
var rows_table = new int[m_info.Height];
for (uint i = 0; i < info.Height; ++i)
{
int line_pos = i * m_stride;
uint y = m_info.Height - i;
rows_table[y - 1] = line_pos;
}
}
}
}