implemented ANI frame archives.

ArcFormats/ArcFormats.csproj

@@ -233,6 +233,7 @@
     <Compile Include="Mebius\ImageMCG.cs" />
     <Compile Include="Mnp\ArcMMA.cs" />
     <Compile Include="MultiFileArchive.cs" />
+    <Compile Include="Musica\ArcANI.cs" />
     <Compile Include="NitroPlus\ArcLAY.cs" />
     <Compile Include="NitroPlus\ArcMPK.cs" />
     <Compile Include="NitroPlus\ArcNPP.cs" />

ArcFormats/Musica/ArcANI.cs

@@ -0,0 +1,124 @@
+//! \file       ArcANI.cs
+//! \date       2019 Jan 28
+//! \brief      Musica animation resource.
+//
+// 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;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+
+namespace GameRes.Formats.Musica
+{
+    [Export(typeof(ArchiveFormat))]
+    public class AniOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "ANI/PAZ"; } }
+        public override string Description { get { return "Musica engine animation resource"; } }
+        public override uint     Signature { get { return 0x040100; } }
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool      CanWrite { get { return false; } }
+
+        public AniOpener ()
+        {
+            Signatures = new uint[] { 0x040100, 0x020100, 0 };
+        }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (file.View.ReadUInt16 (0) != 0x100)
+                return null;
+            int count = file.View.ReadInt16 (2);
+            if (!IsSaneCount (count))
+                return null;
+            if (file.View.ReadUInt32 (4) != 0)
+                return null;
+            using (var input = file.CreateStream())
+            {
+                input.Position = 8;
+                var dir = new List<Entry> (count);
+                for (int i = 0; i < count; ++i)
+                {
+                    var name = input.ReadCString();
+                    if (string.IsNullOrWhiteSpace (name))
+                        return null;
+                    var entry = new Entry {
+                        Name = name,
+                        Type = "image",
+                        Offset = input.Position,
+                    };
+                    uint width  = input.ReadUInt16();
+                    uint height = input.ReadUInt16();
+                    ushort bpp  = input.ReadUInt16();
+                    entry.Size = width * height * bpp / 8 + 10;
+                    if (!entry.CheckPlacement (file.MaxOffset))
+                        return null;
+                    dir.Add (entry);
+                    input.Position = entry.Offset + entry.Size;
+                }
+                return new ArcFile (file, this, dir);
+            }
+        }
+
+        public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
+        {
+            var input = arc.File.CreateStream (entry.Offset, entry.Size);
+            var info = new ImageMetaData();
+            info.Width   = input.ReadUInt16();
+            info.Height  = input.ReadUInt16();
+            info.BPP     = input.ReadUInt16();
+            info.OffsetX = input.ReadInt16();
+            info.OffsetY = input.ReadInt16();
+            return new RawImageDecoder (input, info);
+        }
+    }
+
+    internal class RawImageDecoder : BinaryImageDecoder
+    {
+        public RawImageDecoder (IBinaryStream input, ImageMetaData info) : base (input, info)
+        {
+        }
+
+        protected override ImageData GetImageData ()
+        {
+            var format = GetFormatFromBpp (Info.BPP);
+            m_input.Position = 10;
+            int stride = Info.iWidth * Info.BPP / 8;
+            var pixels = m_input.ReadBytes (stride * Info.iHeight);
+            return ImageData.Create (Info, format, null, pixels, stride);
+        }
+
+        static PixelFormat GetFormatFromBpp (int bpp)
+        {
+            switch (bpp)
+            {
+            case 32:    return PixelFormats.Bgra32;
+            case 24:    return PixelFormats.Bgr24;
+            case 16:    return PixelFormats.Bgr565;
+            case 8:     return PixelFormats.Gray8;
+            default:    throw new InvalidFormatException();
+            }
+        }
+    }
+}