GARbro-mirror/ArcFormats/UMeSoft/ArcMGX.cs
2018-05-22 17:41:50 +04:00

127 lines
4.7 KiB
C#

//! \file ArcMGX.cs
//! \date 2018 May 20
//! \brief U-Me Soft multi-frame image.
//
// 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.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
namespace GameRes.Formats.UMeSoft
{
[Export(typeof(ArchiveFormat))]
public class MgxOpener : ArchiveFormat
{
public override string Tag { get { return "MGX"; } }
public override string Description { get { return "U-Me Soft multi-frame image"; } }
public override uint Signature { get { return 0x1A58474D; } } // 'MGX'
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public MgxOpener ()
{
Extensions = new string[] { "grx" };
}
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (4);
if (!IsSaneCount (count))
return null;
var base_name = Path.GetFileNameWithoutExtension (file.Name);
int index_offset = 8;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var entry = new Entry {
Name = string.Format ("{0}#{1:D4}.GRX", base_name, i),
Type = "image",
Offset = file.View.ReadUInt32 (index_offset),
};
index_offset += 4;
if (entry.Offset > file.MaxOffset)
return null;
dir.Add (entry);
}
for (int i = 1; i < count; ++i)
dir[i-1].Size = (uint)(dir[i].Offset - dir[i-1].Offset);
dir[count-1].Size = (uint)(file.MaxOffset - dir[count-1].Offset);
return new ArcFile (file, this, dir);
}
}
internal class MgxMetaData : GrxMetaData
{
public uint GrxOffset;
}
[Export(typeof(ImageFormat))]
public class MgxFormat : GrxFormat
{
public override string Tag { get { return "MGX"; } }
public override string Description { get { return "U-Me Soft multi-frame image"; } }
public override uint Signature { get { return 0x1A58474D; } } // 'MGX'
public MgxFormat ()
{
Extensions = new string[] { "grx" };
}
public override ImageMetaData ReadMetaData (IBinaryStream file)
{
var header = file.ReadHeader (12);
uint first_offset = header.ToUInt32 (8);
file.Position = first_offset;
if (file.ReadUInt32() != 0x1A585247) // 'GRX'
return null;
var info = ReadInfo (file);
return new MgxMetaData {
Width = info.Width,
Height = info.Height,
BPP = info.BPP,
IsPacked = info.IsPacked,
HasAlpha = info.HasAlpha,
AlphaOffset = info.AlphaOffset,
GrxOffset = first_offset,
};
}
public override ImageData Read (IBinaryStream file, ImageMetaData info)
{
var meta = (MgxMetaData)info;
using (var input = new StreamRegion (file.AsStream, meta.GrxOffset, true))
{
var reader = new Reader (input, meta);
reader.Unpack();
return ImageData.Create (info, reader.Format, null, reader.Data, reader.Stride);
}
}
public override void Write (Stream file, ImageData image)
{
throw new System.NotImplementedException ("MgxFormat.Write not implemented");
}
}
}