diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj index 40a2c16a..699fc2d6 100644 --- a/ArcFormats/ArcFormats.csproj +++ b/ArcFormats/ArcFormats.csproj @@ -128,6 +128,7 @@ + @@ -189,6 +190,7 @@ + diff --git a/ArcFormats/ImageDDS.cs b/ArcFormats/ImageDDS.cs new file mode 100644 index 00000000..71bb0627 --- /dev/null +++ b/ArcFormats/ImageDDS.cs @@ -0,0 +1,89 @@ +//! \file ImageDDS.cs +//! \date Thu Jul 23 18:12:05 2015 +//! \brief Direct Draw Surface image format. +// +// Copyright (C) 2015 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 GameRes.Utility; + +namespace GameRes.Formats.Microsoft +{ + internal class DdsMetaData : ImageMetaData + { + public int DataOffset; + public uint PixelFlags; + } + + [Export(typeof(ImageFormat))] + public class DdsFormat : ImageFormat + { + public override string Tag { get { return "DDS"; } } + public override string Description { get { return "Direct Draw Surface format"; } } + public override uint Signature { get { return 0x20534444; } } // 'DDS' + + public override ImageMetaData ReadMetaData (Stream stream) + { + var header = new byte[0x5C]; + if (header.Length != stream.Read (header, 0, header.Length)) + return null; + int dwSize = LittleEndian.ToInt32 (header, 4); + if (dwSize < 0x7C) + return null; + uint bitflag = LittleEndian.ToUInt32 (header, 0x50); + return new DdsMetaData + { + Width = LittleEndian.ToUInt32 (header, 0x10), + Height = LittleEndian.ToUInt32 (header, 0xC), + BPP = LittleEndian.ToInt32 (header, 0x58), + PixelFlags = LittleEndian.ToUInt32 (header, 0x50), + DataOffset = 4 + dwSize, + }; + } + + public override ImageData Read (Stream stream, ImageMetaData info) + { + var meta = info as DdsMetaData; + if (null == meta) + throw new System.ArgumentException ("DdsFormat.Read should be supplied with DdsMetaData", "info"); + stream.Position = meta.DataOffset; + PixelFormat format; + if (24 == info.BPP) + format = PixelFormats.Bgr24; + else if (1 == (meta.PixelFlags & 1)) + format = PixelFormats.Bgra32; + else + format = PixelFormats.Bgr32; + var pixels = new byte[info.Width*info.Height*((format.BitsPerPixel+7)/8)]; + if (pixels.Length != stream.Read (pixels, 0, pixels.Length)) + throw new InvalidFormatException ("Unexpected end of file"); + return ImageData.Create (info, format, null, pixels); + } + + public override void Write (Stream file, ImageData image) + { + throw new System.NotImplementedException ("DdsFormat.Write not implemented"); + } + } +}