GARbro-mirror/ArcFormats/Software House Parsley/ArcCG.cs

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//! \file ArcCG.cs
//! \date Tue Feb 16 02:48:55 2016
//! \brief Software House Parsley CG archive.
//
// Copyright (C) 2016-2017 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.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Linq;
using System.Windows.Media;
using System.Windows.Media.Imaging;
namespace GameRes.Formats.Parsley
{
[Export(typeof(ArchiveFormat))]
public class CgOpener : ArchiveFormat
{
public override string Tag { get { return "CG/PARSLEY/2"; } }
public override string Description { get { return "Software House Parsley CG archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public CgOpener ()
{
Extensions = new string[] { "" };
}
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (8);
if (!IsSaneCount (count))
return null;
int first_offset = file.View.ReadInt32 (0x2C);
if (12 + count*0x28 != first_offset)
return null;
uint index_offset = 0xC;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var name = file.View.ReadString (index_offset, 0x20);
if (string.IsNullOrWhiteSpace (name))
return null;
var entry = FormatCatalog.Instance.Create<Entry> (name);
entry.Offset = file.View.ReadUInt32 (index_offset+0x20);
entry.Size = file.View.ReadUInt32 (index_offset+0x24);
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
index_offset += 0x28;
}
return new ArcFile (file, this, dir);
}
}
[Export(typeof(ArchiveFormat))]
public class CgV1Opener : ArchiveFormat
{
public override string Tag { get { return "CG/PARSLEY/1"; } }
public override string Description { get { return "Software House Parsley CG archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public CgV1Opener ()
{
Extensions = new string[] { "" };
}
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (0);
if (!IsSaneCount (count))
return null;
var arc_name = Path.GetFileName (file.Name);
bool is_cg = arc_name == "CG";
using (var index = file.CreateStream())
{
index.Position = 4;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var name = index.ReadCString();
if (string.IsNullOrWhiteSpace (name) || name.Length > 0x100)
return null;
var entry = FormatCatalog.Instance.Create<Entry> (name);
entry.Offset = index.ReadUInt32();
if (entry.Offset >= file.MaxOffset || entry.Offset < index.Position)
return null;
dir.Add (entry);
}
for (int i = 0; i < count; ++i)
{
var entry = dir[i];
long next_offset = i+1 < count ? dir[i+1].Offset : file.MaxOffset;
entry.Size = (uint)(next_offset - entry.Offset);
if (is_cg)
entry.Type = "image";
}
if (is_cg)
{
var palette_entry = dir.FirstOrDefault (e => e.Name.Equals ("Palette", StringComparison.InvariantCultureIgnoreCase));
if (palette_entry != null && 1 == file.View.ReadByte (palette_entry.Offset+8))
{
var palette = ImageFormat.ReadPalette (file, palette_entry.Offset+9, 0x100, PaletteFormat.Rgb);
return new CgArchive (file, this, dir, palette);
}
}
return new ArcFile (file, this, dir);
}
}
public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
{
int type = arc.File.View.ReadByte (entry.Offset+8);
if (type > 1)
return base.OpenImage (arc, entry);
var info = new CgMetaData {
Width = arc.File.View.ReadUInt32 (entry.Offset),
Height = arc.File.View.ReadUInt32 (entry.Offset+4),
BPP = 8,
HasPalette = type == 1,
};
var cg_arc = arc as CgArchive;
if (cg_arc != null)
info.DefaultPalette = cg_arc.DefaultPalette;
var input = arc.File.CreateStream (entry.Offset, entry.Size);
return new CgDecoder (input, info);
}
}
internal class CgMetaData : ImageMetaData
{
public bool HasPalette;
public BitmapPalette DefaultPalette;
}
internal class CgArchive : ArcFile
{
public readonly BitmapPalette DefaultPalette;
public CgArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, BitmapPalette palette)
: base (arc, impl, dir)
{
DefaultPalette = palette;
}
}
internal class CgDecoder : BinaryImageDecoder
{
bool m_has_palette;
BitmapPalette m_palette;
public CgDecoder (IBinaryStream input, CgMetaData info) : base (input, info)
{
m_has_palette = info.HasPalette;
m_palette = info.DefaultPalette;
}
protected override ImageData GetImageData ()
{
m_input.Position = 9;
if (m_has_palette)
ReadPalette();
var pixels = m_input.ReadBytes ((int)(Info.Width * Info.Height));
if (m_palette != null)
return ImageData.Create (Info, PixelFormats.Indexed8, m_palette, pixels);
else
return ImageData.Create (Info, PixelFormats.Gray8, null, pixels);
}
void ReadPalette ()
{
m_palette = ImageFormat.ReadPalette (m_input.AsStream, 0x100, PaletteFormat.Rgb);
m_input.Position = 0x20909;
}
}
}