GARbro-mirror/ArcFormats/Musica/ArcANI.cs

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2019-01-28 23:11:26 +08:00
//! \file ArcANI.cs
//! \date 2019 Jan 28
//! \brief Musica animation resource.
//
// Copyright (C) 2019 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;
using System.Windows.Media;
namespace GameRes.Formats.Musica
{
[Export(typeof(ArchiveFormat))]
public class AniOpener : ArchiveFormat
{
public override string Tag { get { return "ANI/PAZ"; } }
public override string Description { get { return "Musica engine animation resource"; } }
public override uint Signature { get { return 0x040100; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public AniOpener ()
{
Signatures = new uint[] { 0x040100, 0x020100, 0 };
}
public override ArcFile TryOpen (ArcView file)
{
if (file.View.ReadUInt16 (0) != 0x100)
return null;
int count = file.View.ReadInt16 (2);
if (!IsSaneCount (count))
return null;
if (file.View.ReadUInt32 (4) != 0)
return null;
using (var input = file.CreateStream())
{
var base_name = Path.GetFileNameWithoutExtension (file.Name);
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input.Position = 8;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var name = input.ReadCString();
if (string.IsNullOrWhiteSpace (name))
return null;
var entry = new Entry {
Name = string.Format ("{0}#{1}", base_name, name),
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Type = "image",
Offset = input.Position,
};
uint width = input.ReadUInt16();
uint height = input.ReadUInt16();
ushort bpp = input.ReadUInt16();
entry.Size = width * height * bpp / 8 + 10;
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
input.Position = entry.Offset + entry.Size;
}
return new ArcFile (file, this, dir);
}
}
public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
{
var input = arc.File.CreateStream (entry.Offset, entry.Size);
var info = new ImageMetaData();
info.Width = input.ReadUInt16();
info.Height = input.ReadUInt16();
info.BPP = input.ReadUInt16();
info.OffsetX = input.ReadInt16();
info.OffsetY = input.ReadInt16();
return new RawImageDecoder (input, info);
}
}
internal class RawImageDecoder : BinaryImageDecoder
{
public RawImageDecoder (IBinaryStream input, ImageMetaData info) : base (input, info)
{
}
protected override ImageData GetImageData ()
{
var format = GetFormatFromBpp (Info.BPP);
m_input.Position = 10;
int stride = Info.iWidth * Info.BPP / 8;
var pixels = m_input.ReadBytes (stride * Info.iHeight);
return ImageData.Create (Info, format, null, pixels, stride);
}
static PixelFormat GetFormatFromBpp (int bpp)
{
switch (bpp)
{
case 32: return PixelFormats.Bgra32;
case 24: return PixelFormats.Bgr24;
case 16: return PixelFormats.Bgr565;
case 8: return PixelFormats.Gray8;
default: throw new InvalidFormatException();
}
}
}
}