implemented DPNG tiled image format.

ArcFormats/ArcFormats.csproj

@@ -85,6 +85,8 @@
     <Compile Include="Palette\ArcPAK.cs" />
     <Compile Include="Palette\ImagePGA.cs" />
     <Compile Include="Qlie\ArcABMP.cs" />
+    <Compile Include="Qlie\ImageDPNG.cs" />
+    <Compile Include="Qlie\QlieMersenneTwister.cs" />
     <Compile Include="Sas5\ArcIAR.cs" />
     <Compile Include="Sas5\ArcSec5.cs" />
     <Compile Include="Sas5\ArcWAR.cs" />

ArcFormats/Qlie/ImageDPNG.cs

@@ -0,0 +1,106 @@
+//! \file       ImageDPNG.cs
+//! \date       Fri Nov 06 14:16:24 2015
+//! \brief      QLIE tiled PNG image format.
+//
+// Copyright (C) 2015 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.ComponentModel.Composition;
+using System.IO;
+using System.Windows;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+
+namespace GameRes.Formats.Qlie
+{
+    internal class DpngMetaData : ImageMetaData
+    {
+        public int TileCount;
+    }
+
+    [Export(typeof(ImageFormat))]
+    public class DpngFormat : ImageFormat
+    {
+        public override string         Tag { get { return "DPNG"; } }
+        public override string Description { get { return "QLIE tiled image format"; } }
+        public override uint     Signature { get { return 0x474E5044; } } // 'DPNG'
+
+        public DpngFormat ()
+        {
+            Extensions = new string[] { "png" };
+        }
+
+        public override ImageMetaData ReadMetaData (Stream stream)
+        {
+            stream.Position = 8;
+            using (var header = new ArcView.Reader (stream))
+            {
+                var info = new DpngMetaData { BPP = 32 };
+                info.TileCount = header.ReadInt32();
+                if (info.TileCount <= 0)
+                    return null;
+                info.Width     = header.ReadUInt32();
+                info.Height    = header.ReadUInt32();
+                return info;
+            }
+        }
+
+        public override ImageData Read (Stream stream, ImageMetaData info)
+        {
+            var meta = (DpngMetaData)info;
+            var bitmap = new WriteableBitmap ((int)info.Width, (int)info.Height,
+                ImageData.DefaultDpiX, ImageData.DefaultDpiY, PixelFormats.Pbgra32, null);
+            long next_tile = 0x14;
+            using (var dpng = new ArcView.Reader (stream))
+            {
+                for (int i = 0; i < meta.TileCount; ++i)
+                {
+                    stream.Position = next_tile;
+                    int x = dpng.ReadInt32();
+                    int y = dpng.ReadInt32();
+                    int width = dpng.ReadInt32();
+                    int height = dpng.ReadInt32();
+                    int size = dpng.ReadInt32();
+                    stream.Seek (8, SeekOrigin.Current);
+                    next_tile = stream.Position + size;
+                    using (var png = new StreamRegion (stream, stream.Position, size, true))
+                    {
+                        var decoder = new PngBitmapDecoder (png,
+                            BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
+                        var frame = new FormatConvertedBitmap (decoder.Frames[0], PixelFormats.Pbgra32, null, 0);
+                        int stride = frame.PixelWidth * 4;
+                        var pixels = new byte[stride * frame.PixelHeight];
+                        frame.CopyPixels (pixels, stride, 0);
+                        var rect = new Int32Rect (0, 0, frame.PixelWidth, frame.PixelHeight);
+                        bitmap.WritePixels (rect, pixels, stride, x, y);
+                    }
+                }
+            }
+            bitmap.Freeze();
+            return new ImageData (bitmap, info);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("DpngFormat.Write not implemented");
+        }
+    }
+}