From 429ac63a30aa1a516e93f60bb95af4ce55ea2167 Mon Sep 17 00:00:00 2001
From: morkt <muvluv.ru@gmail.com>
Date: Tue, 11 Aug 2015 17:49:10 +0400
Subject: [PATCH] Wild bug PCM audio format.

---
 ArcFormats/AudioWPN.cs | 79 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 ArcFormats/AudioWPN.cs

diff --git a/ArcFormats/AudioWPN.cs b/ArcFormats/AudioWPN.cs
new file mode 100644
index 00000000..0b41d73e
--- /dev/null
+++ b/ArcFormats/AudioWPN.cs
@@ -0,0 +1,79 @@
+//! \file       AudioWPN.cs
+//! \date       Mon Aug 10 09:22:18 2015
+//! \brief      Wild Bug audio 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;
+using System.ComponentModel.Composition;
+using System.IO;
+using GameRes.Utility;
+
+namespace GameRes.Formats.WildBug
+{
+    [Export(typeof(AudioFormat))]
+    public class WpnAudio : AudioFormat
+    {
+        public override string         Tag { get { return "WPN"; } }
+        public override string Description { get { return "Wild Bug's audio format"; } }
+        public override uint     Signature { get { return 0x1A444257; } } // 'WBD'
+        
+        public override SoundInput TryOpen (Stream file)
+        {
+            var header = new byte[0x24];
+            if (header.Length != file.Read (header, 0, header.Length))
+                return null;
+            if (!Binary.AsciiEqual (header, 4, "WAV"))
+                return null;
+            if (LittleEndian.ToInt32 (header, 8) < 2)
+                return null;
+            int fmt_offset = LittleEndian.ToInt32 (header, 0x10);
+            int fmt_size   = LittleEndian.ToInt32 (header, 0x14);
+            int data_offset = LittleEndian.ToInt32 (header, 0x1C);
+            int data_size   = LittleEndian.ToInt32 (header, 0x20);
+            var wav_header = new byte[8+12+fmt_size+8];
+            Buffer.BlockCopy (WavHeader, 0, wav_header, 0, WavHeader.Length);
+            LittleEndian.Pack (wav_header.Length-8+data_size, wav_header, 4);
+            LittleEndian.Pack (fmt_size, wav_header, 0x10);
+            file.Position = fmt_offset;
+            file.Read (wav_header, 0x14, fmt_size);
+            int d = wav_header.Length-8;
+            wav_header[d++]= (byte)'d';
+            wav_header[d++]= (byte)'a';
+            wav_header[d++]= (byte)'t';
+            wav_header[d++]= (byte)'a';
+            LittleEndian.Pack (data_size, wav_header, d);
+            var wav_data = new StreamRegion (file, data_offset, data_size);
+            return new WaveInput (new PrefixStream (wav_header, wav_data));
+        }
+
+        static readonly byte[] WavHeader = new byte[] {
+            (byte)'R', (byte)'I', (byte)'F', (byte)'F', 0, 0, 0, 0,
+            (byte)'W', (byte)'A', (byte)'V', (byte)'E', (byte)'f', (byte)'m', (byte)'t', 0x20,
+        };
+
+        public override void Write (SoundInput source, Stream output)
+        {
+            throw new System.NotImplementedException ("WpnFormat.Write not implemenented");
+        }
+    }
+}