implemented LPG images.

ArcFormats/ArcFormats.csproj

@@ -186,6 +186,7 @@
     <Compile Include="HCSystem\ImageOPF.cs" />
     <Compile Include="HuffmanCompression.cs" />
     <Compile Include="Hypatia\AudioADP.cs" />
+    <Compile Include="Hypatia\ImageLPG.cs" />
     <Compile Include="Hypatia\ImageWBM.cs" />
     <Compile Include="Ikura\ArcGAN.cs" />
     <Compile Include="Ikura\ArcTAN.cs" />

ArcFormats/Hypatia/ImageLPG.cs

@@ -0,0 +1,85 @@
+//! \file       ImageLPG.cs
+//! \date       2019 Jan 15
+//! \brief      Kogado Studio image format.
+//
+// Copyright (C) 2019 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;
+
+namespace GameRes.Formats.Kogado
+{
+    [Export(typeof(ImageFormat))]
+    public class LpgFormat : ImageFormat
+    {
+        public override string         Tag { get { return "LPG"; } }
+        public override string Description { get { return "Kogado Studio image format"; } }
+        public override uint     Signature { get { return 1; } }
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            if (!file.Name.HasExtension ("LPG"))
+                return null;
+            var header = file.ReadHeader (0x1C);
+            int bpp = header.ToInt32 (4);
+            uint width  = header.ToUInt32 (0x10);
+            uint height = header.ToUInt32 (0x14);
+            if (bpp != 32 && bpp != 24
+                || 0 == width || width > 0x8000 || 0 == height || height > 0x8000)
+                return null;
+            return new ImageMetaData { Width = width, Height = height, BPP = bpp };
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            file.Position = 0x1C;
+            var palette = ReadPalette (file.AsStream);
+            if (info.BPP != 32)
+            {
+                var pixels = new byte[info.iWidth * info.iHeight];
+                file.Read (pixels, 0, pixels.Length);
+                return ImageData.CreateFlipped (info, PixelFormats.Indexed8, palette, pixels, info.iWidth);
+            }
+            else
+            {
+                int stride = info.iWidth * 4;
+                var pixels = new byte[stride * info.iHeight];
+                var colormap = palette.Colors;
+                for (int dst = 0; dst < pixels.Length; dst += 4)
+                {
+                    byte c = file.ReadUInt8();
+                    pixels[dst  ] = colormap[c].B;
+                    pixels[dst+1] = colormap[c].G;
+                    pixels[dst+2] = colormap[c].R;
+                    pixels[dst+3] = file.ReadUInt8();
+                }
+                return ImageData.CreateFlipped (info, PixelFormats.Bgra32, null, pixels, stride);
+            }
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("LpgFormat.Write not implemented");
+        }
+    }
+}