GARbro-mirror/ArcFormats/LiveMaker/ImageGALX.cs

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2017-12-30 04:33:28 +08:00
//! \file ImageGALX.cs
//! \date 2017 Dec 29
//! \brief LiveMaker GaleX 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;
using System.ComponentModel.Composition;
using System.IO;
using System.Text.RegularExpressions;
using System.Xml;
using GameRes.Compression;
using GameRes.Utility;
namespace GameRes.Formats.LiveMaker
{
internal class GalXMetaData : GalMetaData
{
public XmlNode FrameXml;
}
[Export(typeof(ImageFormat))]
public class GalXFormat : ImageFormat
{
public override string Tag { get { return "GAL/X200"; } }
public override string Description { get { return "LiveMaker image format"; } }
public override uint Signature { get { return 0x656C6147; } } // 'Gale'
public override bool CanWrite { get { return false; } }
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (12);
if (!header.AsciiEqual ("GaleX200"))
return null;
int header_size = LittleEndian.ToInt32 (header, 8);
using (var zheader = new StreamRegion (file.AsStream, 12, header_size, true))
using (var xheader = new ZLibStream (zheader, CompressionMode.Decompress))
{
var xml = ReadXml (xheader);
var frames = xml.DocumentElement.SelectSingleNode ("/Frames");
var attr = frames.Attributes;
return new GalXMetaData
{
Width = UInt32.Parse (attr["Width"].Value),
Height = UInt32.Parse (attr["Height"].Value),
BPP = Int32.Parse (attr["Bpp"].Value),
Version = Int32.Parse (attr["Version"].Value),
FrameCount = Int32.Parse (attr["Count"].Value),
Shuffled = attr["Randomized"].Value != "0",
Compression = Int32.Parse (attr["CompType"].Value),
Mask = UInt32.Parse (attr["BGColor"].Value),
BlockWidth = Int32.Parse (attr["BlockWidth"].Value),
BlockHeight = Int32.Parse (attr["BlockHeight"].Value),
DataOffset = header_size + 12,
FrameXml = frames,
};
}
}
static readonly Regex FrameRe = new Regex (@"<Frame [^>]+>");
internal XmlDocument ReadXml (Stream input)
{
// GaleXml contains duplicate attributes which causes LoadXml to fail.
// this is a silly hack to prevent such failure.
using (var reader = new StreamReader (input))
{
var text = reader.ReadToEnd();
text = FrameRe.Replace (text, "<Frame>");
var xml = new XmlDocument();
xml.LoadXml (text);
return xml;
}
}
public override ImageData Read (IBinaryStream stream, ImageMetaData info)
{
var meta = (GalXMetaData)info;
if (meta.Shuffled)
throw new NotImplementedException ("Encrypted GaleX images not implemented.");
using (var reader = new GalXReader (stream, meta, 0))
{
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 ("GalXFormat.Write not implemented");
}
}
internal class GalXReader : GalReader
{
readonly XmlNode FrameXml;
public GalXReader (IBinaryStream input, GalXMetaData info, uint key) : base (input, info, key)
{
FrameXml = info.FrameXml;
}
new public void Unpack ()
{
m_input.Position = m_info.DataOffset;
var layers = FrameXml.SelectSingleNode ("Frame/Layers");
var attr = layers.Attributes;
int layer_count = Int32.Parse (attr["Count"].Value);
var frame = new Frame (layer_count);
frame.Width = Int32.Parse (attr["Width"].Value);
frame.Height = Int32.Parse (attr["Height"].Value);
frame.BPP = Int32.Parse (attr["Bpp"].Value);
frame.SetStride();
if (frame.BPP <= 8)
frame.Palette = ImageFormat.ReadColorMap (m_input.AsStream, 1 << frame.BPP);
m_frames.Add (frame);
var layer_nodes = layers.SelectNodes ("Layer");
foreach (XmlNode node in layer_nodes)
{
attr = node.Attributes;
bool alpha_on = attr["AlphaOn"].Value != "0";
int layer_size = m_input.ReadInt32();
var layer = new Layer();
layer.Pixels = UnpackLayer (frame, layer_size);
if (alpha_on)
{
int alpha_size = m_input.ReadInt32();
layer.Alpha = UnpackLayer (frame, alpha_size, true);
}
frame.Layers.Add (layer);
}
Flatten (0);
}
}
}