//! \file ImageFG.cs //! \date 2018 Nov 05 //! \brief FrontWing image format. // // Copyright (C) 2018 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.ComponentModel.Composition; using System.IO; using GameRes.Compression; namespace GameRes.Formats.FrontWing { internal class FgMetaData : ImageMetaData { public uint DataOffset; public uint DataLength; } [Export(typeof(ImageFormat))] public class FwgiFormat : ImageFormat { public override string Tag { get { return "FG/FWGI"; } } public override string Description { get { return "FrontWing image format"; } } public override uint Signature { get { return 0x49475746; } } // 'FWGI' public override ImageMetaData ReadMetaData (IBinaryStream file) { var header = file.ReadHeader (0x1B0); if (header.ToInt32 (4) != 1) return null; return new FgMetaData { Width = header.ToUInt32 (0x1C), Height = header.ToUInt32 (0x20), OffsetX = header.ToInt32 (0x0C), OffsetY = header.ToInt32 (0x10), BPP = 32, DataOffset = header.ToUInt32 (0x128) + 4, DataLength = header.ToUInt32 (0x12C), }; } public override ImageData Read (IBinaryStream file, ImageMetaData info) { var meta = (FgMetaData)info; using (var input = new StreamRegion (file.AsStream, meta.DataOffset, meta.DataLength, true)) using (var bmp = new BinaryStream (input, file.Name)) { var bmp_info = Bmp.ReadMetaData (bmp); if (null == bmp_info) throw new InvalidFormatException(); bmp.Position = 0; bmp_info.OffsetX = meta.OffsetX; bmp_info.OffsetY = meta.OffsetY; return Bmp.Read (bmp, bmp_info); } } public override void Write (Stream file, ImageData image) { throw new System.NotImplementedException ("FwgiFormat.Write not implemented"); } } [Export(typeof(ImageFormat))] public class FweiFormat : ImageFormat { public override string Tag { get { return "FG/FWEI"; } } public override string Description { get { return "FrontWing encoded image format"; } } public override uint Signature { get { return 0x49455746; } } // 'FWEI' static readonly ResourceInstance<ImageFormat> Fwgi = new ResourceInstance<ImageFormat> ("FG/FWGI"); public override ImageMetaData ReadMetaData (IBinaryStream file) { var fge_name = Path.ChangeExtension (file.Name, ".fge"); if (!VFS.FileExists (fge_name)) throw new OperationCanceledException("Required metadata file '"+Path.GetFileName(fge_name)+"' not found."); using (var fg = OpenFg (file)) { return Fwgi.Value.ReadMetaData (fg); } } public override ImageData Read (IBinaryStream file, ImageMetaData info) { using (var fg = OpenFg (file)) { return Fwgi.Value.Read (fg, info); } } internal IBinaryStream OpenFg (IBinaryStream fg) { var fge_name = Path.ChangeExtension (fg.Name, ".fge"); using (var fge = VFS.OpenView (fge_name)) { if (fge.MaxOffset != 0x818) throw new InvalidFormatException(); int chunk1_size = fge.View.ReadInt32 (0); int chunk2_offset = fge.View.ReadInt32 (0x404); int chunk2_size = fge.View.ReadInt32 (0x408); bool is_compressed = fge.View.ReadInt32 (0x810) != 0; int part1_size = chunk2_offset + chunk2_size; var part1 = new byte[part1_size]; fge.View.Read (4, part1, 0, (uint)chunk1_size); fg.Position = 5; fg.Read (part1, chunk1_size, chunk2_offset - chunk1_size); fge.View.Read (0x40C, part1, chunk2_offset, (uint)chunk2_size); var part2 = new StreamRegion (fg.AsStream, fg.Position, true); Stream fg_stream = new PrefixStream (part1, part2); if (is_compressed) { fg_stream = new ZLibStream (fg_stream, CompressionMode.Decompress); fg_stream = new SeekableStream (fg_stream); } return new BinaryStream (fg_stream, fg.Name); } } public override void Write (Stream file, ImageData image) { throw new System.NotImplementedException ("FweiFormat.Write not implemented"); } } }