(Legacy): IMG/IMA images.

Legacy/HillField/ImageIMA.cs

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+//! \file       ImageIMA.cs
+//! \date       2019 Mar 02
+//! \brief      Hill Field script system image with alpha channel.
+//
+// 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.HillField
+{
+    internal class ImaMetaData : ImageMetaData
+    {
+        public uint AlphaOffset;
+    }
+
+    [Export(typeof(ImageFormat))]
+    public class ImaFormat : ImageFormat
+    {
+        public override string         Tag { get { return "IMA"; } }
+        public override string Description { get { return "Hill Field script system image format"; } }
+        public override uint     Signature { get { return 0; } }
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            var header = file.ReadHeader (0x10);
+            if (header.ToInt32 (0) != 0)
+                return null;
+            uint rgb_size = header.ToUInt32 (4);
+            uint width = header.ToUInt32 (8);
+            uint height = header.ToUInt32 (12);
+            uint plane_size = width * height;
+            uint bitmap_size = plane_size * 3;
+            if (plane_size == 0 || bitmap_size > rgb_size || file.Length - rgb_size - 8 < plane_size)
+                return null;
+            return new ImaMetaData {
+                Width = width, Height = height, BPP = 32,
+                AlphaOffset = 8 + rgb_size,
+            };
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            var meta = (ImaMetaData)info;
+            file.Position = 0x10;
+            int plane_size = meta.iWidth * meta.iHeight;
+            var rgb = file.ReadBytes (plane_size * 3);
+            file.Position = meta.AlphaOffset;
+            var alpha = file.ReadBytes (plane_size);
+
+            int stride = meta.iWidth * 4;
+            var pixels = new byte[stride * meta.iHeight];
+            int dst = 0;
+            int src = 0;
+            int asrc = 0;
+            while (dst < pixels.Length)
+            {
+                pixels[dst++] = rgb[src++];
+                pixels[dst++] = rgb[src++];
+                pixels[dst++] = rgb[src++];
+                pixels[dst++] = (byte)~alpha[asrc++];
+            }
+            return ImageData.CreateFlipped (info, PixelFormats.Bgra32, null, pixels, stride);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("ImaFormat.Write not implemented");
+        }
+    }
+}

Legacy/HillField/ImageIMG.cs

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+//! \file       ImageIMG.cs
+//! \date       2019 Mar 02
+//! \brief      Hill Field script system resource archive.
+//
+// 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;
+
+// [991008][Easy Mode] Zero Jikan e...
+
+namespace GameRes.Formats.HillField
+{
+    [Export(typeof(ImageFormat))]
+    public class ImgFormat : ImageFormat
+    {
+        public override string         Tag { get { return "IMG/HF"; } }
+        public override string Description { get { return "Hill Field script system image format"; } }
+        public override uint     Signature { get { return 0; } }
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            if (!file.Name.HasExtension (".img"))
+                return null;
+            var header = file.ReadHeader (8);
+            uint width = header.ToUInt32 (0);
+            uint height = header.ToUInt32 (4);
+            uint bitmap_size = width * height * 3;
+            if (bitmap_size != file.Length - 10 && bitmap_size != file.Length - 8)
+                return null;
+            return new ImageMetaData { Width = width, Height = height, BPP = 24 };
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            file.Position = 8;
+            int stride = info.iWidth * 3;
+            var pixels = new byte[stride * info.iHeight];
+            file.Read (pixels, 0, pixels.Length);
+            return ImageData.CreateFlipped (info, PixelFormats.Bgr24, null, pixels, stride);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("ImgFormat.Write not implemented");
+        }
+    }
+}