GARbro-mirror/ArcFormats/RealLive/ArcG00.cs

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2016-05-20 08:02:55 +08:00
//! \file ArcG00.cs
//! \date Wed May 04 13:21:19 2016
//! \brief RealLive engine multi-frame image.
//
// Copyright (C) 2016 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;
namespace GameRes.Formats.RealLive
{
internal class G00Entry : PackedEntry
{
public override string Type { get { return "image"; } }
public int X;
public int Y;
}
internal class G00Archive : ArcFile
{
public ImageMetaData ImageInfo;
public byte[] Bitmap;
public G00Archive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, ImageMetaData info, byte[] bitmap)
: base (arc, impl, dir)
{
ImageInfo = info;
Bitmap = bitmap;
}
}
[Export(typeof(ArchiveFormat))]
public class G00Opener : ArchiveFormat
{
public override string Tag { get { return "G00/v2"; } }
public override string Description { get { return "RealLive engine multi-frame image"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanCreate { get { return false; } }
public G00Opener ()
{
Extensions = new string[] { "g00" };
}
public override ArcFile TryOpen (ArcView file)
{
if (!file.Name.EndsWith (".g00", StringComparison.InvariantCultureIgnoreCase))
return null;
if (file.View.ReadByte (0) != 2)
return null;
uint width = file.View.ReadUInt16 (1);
uint height = file.View.ReadUInt16 (3);
if (0 == width || width > 0x8000 || 0 == height || height > 0x8000)
return null;
int count = file.View.ReadInt16 (5);
if (count <= 1 || count > 0x100)
return null;
var base_name = Path.GetFileNameWithoutExtension (file.Name);
uint size = width * height * 4 + 0x12; // virtual TGA image size
uint index_offset = 9;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var entry = new G00Entry {
Name = string.Format ("{0}#{1:D3}.tga", base_name, i),
X = file.View.ReadInt32 (index_offset),
Y = file.View.ReadInt32 (index_offset+4),
IsPacked = true,
UnpackedSize = size,
};
dir.Add (entry);
index_offset += 0x18;
}
byte[] bitmap;
using (var input = file.CreateStream (index_offset))
using (var bin = new BinaryReader (input))
bitmap = G00Reader.LzDecompress (bin, 2, 1);
using (var input = new MemoryStream (bitmap))
using (var reader = new BinaryReader (input))
{
if (reader.ReadInt32() != count)
return null;
for (int i = 0; i < count; ++i)
{
dir[i].Offset = reader.ReadUInt32();
dir[i].Size = reader.ReadUInt32();
}
}
dir = dir.Where (e => e.Size != 0).ToList();
if (0 == dir.Count)
return null;
var info = new ImageMetaData { Width = width, Height = height, BPP = 32 };
return new G00Archive (file, this, dir, info, bitmap);
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
if (0 == entry.Size)
return Stream.Null;
var g00arc = (G00Archive)arc;
var g00ent = (G00Entry)entry;
using (var input = new MemoryStream (g00arc.Bitmap))
using (var reader = new BinaryReader (input))
{
input.Position = g00ent.Offset;
int tile_type = reader.ReadUInt16();
int count = reader.ReadUInt16();
if (tile_type != 1)
throw new InvalidFormatException();
input.Seek (0x70, SeekOrigin.Current);
int dst_stride = (int)g00arc.ImageInfo.Width * 4;
var pixels = new byte[(int)g00arc.ImageInfo.Height * dst_stride];
for (int i = 0; i < count; ++i)
{
int tile_x = reader.ReadUInt16();
int tile_y = reader.ReadUInt16();
reader.ReadInt16();
int tile_width = reader.ReadUInt16();
int tile_height = reader.ReadUInt16();
input.Seek (0x52, SeekOrigin.Current);
tile_x += g00ent.X;
tile_y += g00ent.Y;
if (tile_x + tile_width > g00arc.ImageInfo.Width ||
tile_y + tile_height > g00arc.ImageInfo.Height)
throw new InvalidFormatException();
int dst = tile_y * dst_stride + tile_x * 4;
int tile_stride = tile_width * 4;
for (int row = 0; row < tile_height; ++row)
{
reader.Read (pixels, dst, tile_stride);
dst += dst_stride;
}
}
return TgaStream.Create (g00arc.ImageInfo, pixels);
}
}
}
}