GARbro-mirror/ArcFormats/MAGES/ArcLAY.cs

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//! \file ArcLAY.cs
//! \date 2018 Oct 18
//! \brief MAGES engine composite layers.
//
// 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;
using System.Linq;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Imaging;
namespace GameRes.Formats.MAGES
{
internal class LayEntry : Entry
{
public uint Id;
public int First;
public int Count;
}
internal class LayCoord
{
public float TargetX, TargetY;
public float SourceX, SourceY;
}
internal class LayArchive : ArcFile
{
public readonly BitmapSource Source;
public readonly IList<LayCoord> Tiles;
public readonly IDictionary<uint, LayEntry> LayerMap;
public LayArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, BitmapSource image, IList<LayCoord> tiles)
: base (arc, impl, dir)
{
Source = image;
Tiles = tiles;
LayerMap = new Dictionary<uint, LayEntry> (dir.Count);
foreach (LayEntry entry in dir)
{
LayerMap[entry.Id] = entry;
}
}
public IEnumerable<LayCoord> GetTiles (LayEntry layer)
{
return Tiles.Skip (layer.First).Take (layer.Count);
}
}
[Export(typeof(ArchiveFormat))]
public class LayOpener : ArchiveFormat
{
public override string Tag { get { return "LAY/MAGES"; } }
public override string Description { get { return "MAGES engine composite image archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
const int DefaultWidth = 1920;
const int DefaultHeight = 1080;
const int BlockSize = 32;
public override ArcFile TryOpen (ArcView file)
{
if (!file.Name.HasExtension (".lay"))
return null;
int tile_count = file.View.ReadInt32 (0);
int coord_count = file.View.ReadInt32 (4);
if (!IsSaneCount (tile_count) || !IsSaneCount (coord_count))
return null;
var base_name = Path.GetFileNameWithoutExtension (file.Name).TrimEnd ('_');
var png_name = VFS.ChangeFileName (file.Name, base_name + ".png");
if (!VFS.FileExists (png_name))
return null;
ImageData image;
var png_entry = VFS.FindFile (png_name);
using (var decoder = VFS.OpenImage (png_entry))
image = decoder.Image;
using (var input = file.CreateStream())
using (var index = new BinaryReader (input))
{
input.Position = 8;
var dir = new List<Entry> (tile_count);
for (int i = 0; i < tile_count; ++i)
{
uint id = index.ReadUInt32();
int first = index.ReadInt32();
int count = index.ReadInt32();
var name = string.Format ("{0}#{1:X8}", base_name, id);
var entry = new LayEntry {
Name = name, Type = "image", Offset = 0,
Id = id, First = first, Count = count
};
dir.Add (entry);
}
var tiles = new List<LayCoord> (coord_count);
for (int i = 0; i < coord_count; ++i)
{
var tile = new LayCoord();
tile.TargetX = index.ReadSingle() + 1;
tile.TargetY = index.ReadSingle() + 1;
tile.SourceX = index.ReadSingle() - 1;
tile.SourceY = index.ReadSingle() - 1;
tiles.Add (tile);
}
return new LayArchive (file, this, dir, image.Bitmap, tiles);
}
}
public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
{
var lent = (LayEntry)entry;
var larc = (LayArchive)arc;
var visual = new DrawingVisual();
using (var context = visual.RenderOpen())
{
if (lent.Id != 1)
{
LayEntry base_layer;
if (larc.LayerMap.TryGetValue (1, out base_layer))
DrawLayer (context, larc.Source, larc.GetTiles (base_layer));
}
if ((lent.Id >> 28) == 4)
{
uint face_id = (lent.Id >> 8) & 0xF | 0x20000000;
LayEntry face_layer;
if (larc.LayerMap.TryGetValue (face_id, out face_layer) ||
larc.LayerMap.TryGetValue (face_id-1, out face_layer))
DrawLayer (context, larc.Source, larc.GetTiles (face_layer));
}
DrawLayer (context, larc.Source, larc.GetTiles (lent));
}
var bmp = new RenderTargetBitmap (DefaultWidth, DefaultHeight, ImageData.DefaultDpiX,
ImageData.DefaultDpiY, PixelFormats.Pbgra32);
bmp.Render (visual);
return new BitmapSourceDecoder (bmp);
}
void DrawLayer (DrawingContext context, BitmapSource source, IEnumerable<LayCoord> tiles)
{
foreach (var coord in tiles)
{
var src_rect = new Int32Rect ((int)coord.SourceX, (int)coord.SourceY, BlockSize, BlockSize);
var tile = new CroppedBitmap (source, src_rect);
var dst_rect = new Rect (coord.TargetX + DefaultWidth / 2, coord.TargetY + DefaultHeight / 2,
BlockSize, BlockSize);
context.DrawImage (tile, dst_rect);
}
}
}
}