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));
}
}
void LoadPreviewImage(PreviewFile preview)
{
try
{
using (var data = VFS.OpenImage(preview.Entry))
{
SetPreviewImage(preview, data.Image.Bitmap);
}
}
catch (Exception X)
{
SetStatusText(X.Message);
}
}
void LoadPreviewImage(PreviewFile preview)
{
try
{
using (var data = VFS.OpenImage(preview.Entry))
{
SetPreviewImage(preview, data.Image.Bitmap, data.SourceFormat);
}
}
catch (Exception X)
{
Dispatcher.Invoke(ResetPreviewPane);
SetStatusText(X.Message);
}
}
public override IImageDecoder OpenImage(ArcFile arc, Entry entry)
{
var input = arc.OpenBinaryEntry(entry);
int length = (int)(input.Length - 0x10);
if ((length & 3) != 0)
{
return(ImageFormatDecoder.Create(input));
}
uint width = input.ReadUInt32();
uint height = input.ReadUInt32();
int buf_width = input.ReadInt32();
int buf_height = input.ReadInt32();
var info = new ImageMetaData {
Width = width, Height = height, BPP = 32
};
if (DefaultVisualMap.Value.ContainsKey(entry.Name))
{
var diff_info = DefaultVisualMap.Value[entry.Name];
if (VFS.FileExists(diff_info.BaseFileName))
{
var base_entry = VFS.FindFile(diff_info.BaseFileName);
using (var visbase = VFS.OpenImage(base_entry))
{
var base_decoder = visbase as Gx4ImageDecoder;
if (base_decoder != null)
{
info.OffsetX = diff_info.PosX;
info.OffsetY = diff_info.PosY;
var pixels = base_decoder.ReadPixels();
return(new Gx4OverlayDecoder(pixels, base_decoder.Info, input, info));
}
}
}
}
return(new Gx4ImageDecoder(input, info));
}