(GrpOpener): implemented TPW compression.

2026-07-08 01:30:18 +08:00 · 2016-10-03 23:22:37 +04:00
parent e006b898e2
commit ecdb6d147f
3 changed files with 230 additions and 26 deletions
--- a/ArcFormats/Ankh/AudioPCM.cs
+++ b/ArcFormats/Ankh/AudioPCM.cs
@@ -0,0 +1,74 @@
+//! \file       AudioPCM.cs
+//! \date       Mon Oct 03 22:21:15 2016
+//! \brief      Ice Soft PCM audio file.
+//
+// Copyright (C) 2016 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 GameRes.Utility;
+
+namespace GameRes.Formats.Ice
+{
+    [Export(typeof(AudioFormat))]
+    public class IceAudio : AudioFormat
+    {
+        public override string         Tag { get { return "PCM/ICE"; } }
+        public override string Description { get { return "Ice Soft PCM audio"; } }
+        public override uint     Signature { get { return 0; } }
+
+        public IceAudio ()
+        {
+            Extensions = new string[] { "" };
+            Signatures = new uint[] { 0x010001, 0x020001 };
+        }
+
+        public override SoundInput TryOpen (Stream file)
+        {
+            var header = new byte[0x16];
+            if (header.Length != file.Read (header, 0, header.Length))
+                return null;
+            ushort tag = LittleEndian.ToUInt16 (header, 0);
+            if (tag != 1)
+                return null;
+            int extra_size = LittleEndian.ToUInt16 (header, 0x10);
+            if (0 != extra_size)
+                return null;
+            uint pcm_size = LittleEndian.ToUInt32 (header, 0x12);
+            if (pcm_size + 0x16 != file.Length)
+                return null;
+            var format = new WaveFormat { FormatTag = tag };
+            format.Channels = LittleEndian.ToUInt16 (header, 2);
+            if (format.Channels != 1 && format.Channels != 2)
+                return null;
+            format.SamplesPerSecond     = LittleEndian.ToUInt32 (header, 4);
+            format.AverageBytesPerSecond = LittleEndian.ToUInt32 (header, 8);
+            format.BlockAlign           = LittleEndian.ToUInt16 (header, 0xC);
+            format.BitsPerSample        = LittleEndian.ToUInt16 (header, 0xE);
+            if (0 == format.AverageBytesPerSecond
+                || format.SamplesPerSecond * format.BlockAlign != format.AverageBytesPerSecond)
+                return null;
+            var pcm = new StreamRegion (file, 0x16, pcm_size);
+            return new RawPcmInput (pcm, format);
+        }
+    }
+}