diff --git a/Legacy/Pisckiss/Audio0.cs b/Legacy/Pisckiss/Audio0.cs new file mode 100644 index 00000000..9ad86938 --- /dev/null +++ b/Legacy/Pisckiss/Audio0.cs @@ -0,0 +1,88 @@ +//! \file Audio0.cs +//! \date 2018 Apr 20 +//! \brief Pisckiss encrypted audio. +// +// 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.ComponentModel.Composition; +using System.IO; + +namespace GameRes.Formats.Pisckiss +{ + [Export(typeof(AudioFormat))] + public sealed class Audio1 : AudioFormat + { + public override string Tag { get { return "WAV/0"; } } + public override string Description { get { return "Pisckiss encrypted audio"; } } + public override uint Signature { get { return 0; } } + public override bool CanWrite { get { return false; } } + + public override SoundInput TryOpen (IBinaryStream file) + { + int length = (int)file.Length; + if (length < 4) + return null; + uint signature = file.ReadUInt8(); + switch (signature & 0x42) + { + case 0x42: + length -= 3; + break; + case 0x02: + case 0x40: + length -= 1; + break; + default: + return null; + } + uint key = (signature & 0xBD) ^ 0x6A8CD4E7u; + var header = file.ReadBytes (4); + file.Position = 1; + Decrypt (header, key); + + SoundInput sound = null; + if (header.AsciiEqual ("RIFF")) + sound = new WaveInput (DecryptedStream (file, length, key)); + else if (header.AsciiEqual ("OggS")) + sound = new OggInput (DecryptedStream (file, length, key)); + if (sound != null) + file.Dispose(); + return sound; + } + + static void Decrypt (byte[] data, uint key) + { + for (int i = 0; i < data.Length; ++i) + { + data[i] ^= (byte)key; + key = key << 1 | (((key & 0x10000) ^ (key >> 15)) >> 16); + } + } + + Stream DecryptedStream (IBinaryStream input, int length, uint key) + { + var data = input.ReadBytes (length); + Decrypt (data, key); + return new BinMemoryStream (data, input.Name); + } + } +} diff --git a/Legacy/Pisckiss/Image1.cs b/Legacy/Pisckiss/Image1.cs new file mode 100644 index 00000000..f415bc4a --- /dev/null +++ b/Legacy/Pisckiss/Image1.cs @@ -0,0 +1,87 @@ +//! \file Image1.cs +//! \date 2018 Apr 20 +//! \brief Pisckiss encrypted bitmap. +// +// 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.ComponentModel.Composition; +using System.IO; +using System.Windows.Media; + +// [040220][pisckiss] SCHREI-TEN + +namespace GameRes.Formats.Pisckiss +{ + [Export(typeof(ImageFormat))] + public class Bm1Format : ImageFormat + { + public override string Tag { get { return "BMP/PISCKISS"; } } + public override string Description { get { return "Pisckiss encrypted bitmap"; } } + public override uint Signature { get { return 0; } } + + public Bm1Format () + { + Extensions = new[] { "1" }; + } + + public override ImageMetaData ReadMetaData (IBinaryStream file) + { + var header = file.ReadHeader (5); + if ((header[0] & 0x42) != 0) + return null; + int shift = 0; + uint width = 0; + uint height = 0; + for (int i = 0; i < 4; ++i) + { + uint v = header[i+1]; + width |= ((v >> 4 * (i & 1)) & 0xF) << shift; + height |= ((v >> 4 * (~i & 1)) & 0xF) << shift; + shift += 4; + } + if (0 == width || 0 == height) + return null; + uint stride = (width * 3 + 3) & ~3u; + uint length = 5 + stride * height; + if (length != file.Length) + return null; + return new ImageMetaData { + Width = width, + Height = height, + BPP = 24, + }; + } + + public override ImageData Read (IBinaryStream file, ImageMetaData info) + { + file.Position = 5; + int stride = ((int)info.Width * 3 + 3) & ~3; + var pixels = file.ReadBytes (stride * (int)info.Height); + return ImageData.CreateFlipped (info, PixelFormats.Bgr24, null, pixels, stride); + } + + public override void Write (Stream file, ImageData image) + { + throw new System.NotImplementedException ("Bm1Format.Write not implemented"); + } + } +}