(Legacy): pisckiss resources.

Legacy/Pisckiss/Audio0.cs

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+//! \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);
+        }
+    }
+}

Legacy/Pisckiss/Image1.cs

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+//! \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");
+        }
+    }
+}