implemented more of Leaf resources (LGF, TEX).

ArcFormats/Leaf/ImageLGF.cs

@@ -0,0 +1,96 @@
+//! \file       ImageLGF.cs
+//! \date       Sat Sep 03 15:03:06 2016
+//! \brief      Leaf image format.
+//
+// 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.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using GameRes.Utility;
+
+namespace GameRes.Formats.Leaf
+{
+    [Export(typeof(ImageFormat))]
+    public class LgfFormat : ImageFormat
+    {
+        public override string         Tag { get { return "LGF"; } }
+        public override string Description { get { return "Leaf image format"; } }
+        public override uint     Signature { get { return 0; } }
+
+        public LgfFormat ()
+        {
+            // fourth byte is BPP
+            Signatures = new uint[] { 0x1866676C, 0x2066676C, 0x0966676C };
+        }
+
+        public override ImageMetaData ReadMetaData (Stream stream)
+        {
+            var header = new byte[8];
+            if (8 != stream.Read (header, 0, 8))
+                return null;
+            int bpp = header[3];
+            return new ImageMetaData
+            {
+                Width   = LittleEndian.ToUInt16 (header, 4),
+                Height  = LittleEndian.ToUInt16 (header, 6),
+                BPP     = 9 == bpp ? 8 : bpp,
+            };
+        }
+
+        public override ImageData Read (Stream stream, ImageMetaData info)
+        {
+            int stride = (int)info.Width * info.BPP / 8;
+            var pixels = new byte[stride * (int)info.Height];
+            stream.Position = 12;
+            BitmapPalette palette = null;
+            if (8 == info.BPP)
+                palette = ReadPalette (stream);
+            if (pixels.Length != stream.Read (pixels, 0, pixels.Length))
+                throw new EndOfStreamException();
+            PixelFormat format = 24 == info.BPP ? PixelFormats.Bgr24
+                               : 32 == info.BPP ? PixelFormats.Bgr32
+                               : PixelFormats.Indexed8;
+            return ImageData.Create (info, format, palette, pixels);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("LgfFormat.Write not implemented");
+        }
+
+        BitmapPalette ReadPalette (Stream input)
+        {
+            var palette_data = new byte[0x400];
+            if (palette_data.Length != input.Read (palette_data, 0, palette_data.Length))
+                throw new EndOfStreamException();
+            var palette = new Color[0x100];
+            for (int i = 0; i < 0x100; ++i)
+            {
+                int c = i * 4;
+                palette[i] = Color.FromRgb (palette_data[c], palette_data[c+1], palette_data[c+2]);
+            }
+            return new BitmapPalette (palette);
+        }
+    }
+}