diff --git a/Legacy/SystemAqua/ArcDAT.cs b/Legacy/SystemAqua/ArcDAT.cs new file mode 100644 index 00000000..529a1146 --- /dev/null +++ b/Legacy/SystemAqua/ArcDAT.cs @@ -0,0 +1,182 @@ +//! \file ArcDAT.cs +//! \date 2017 Dec 18 +//! \brief SystemAQUA engine resource archive. +// +// Copyright (C) 2017 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.Collections.Generic; +using System.ComponentModel.Composition; +using System.IO; +using GameRes.Utility; + +namespace GameRes.Formats.SystemAqua +{ + [Export(typeof(ArchiveFormat))] + public class DatOpener : ArchiveFormat + { + public override string Tag { get { return "DAT/CATF"; } } + public override string Description { get { return "SystemAQUA engine resource archive"; } } + public override uint Signature { get { return 0x46544143; } } // 'CATF' + public override bool IsHierarchic { get { return false; } } + public override bool CanWrite { get { return false; } } + + public override ArcFile TryOpen (ArcView file) + { + int count = file.View.ReadInt32 (0x10); + if (!IsSaneCount (count)) + return null; + uint index_offset = file.View.ReadUInt32 (8); + if (index_offset >= file.MaxOffset) + return null; + + var base_name = Path.GetFileNameWithoutExtension (file.Name); + var dir = new List (count); + for (int i = 0; i < count; ++i) + { + var entry = new PackedEntry { + Name = string.Format ("{0}#{1:D4}", base_name, i), + Size = file.View.ReadUInt32 (index_offset), + Offset = file.View.ReadUInt32 (index_offset+4), + }; + if (!entry.CheckPlacement (file.MaxOffset)) + return null; + dir.Add (entry); + index_offset += 8; + } + DetectFileTypes (dir, file); + return new ArcFile (file, this, dir); + } + + void DetectFileTypes (List dir, ArcView file) + { + var type = new byte[3]; + foreach (PackedEntry entry in dir) + { + uint signature = file.View.ReadUInt32 (entry.Offset); + if (signature != 0x34655A4C) // 'LZe4' + { + entry.ChangeType (AutoEntry.DetectFileType (signature)); + } + else if (entry.Size > 0x40) + { + entry.IsPacked = true; + entry.UnpackedSize = file.View.ReadUInt32 (entry.Offset+8); + file.View.Read (entry.Offset+0xC, type, 0, 3); + if (type.AsciiEqual ("000")) + { + entry.ChangeType (AudioFormat.Wav); + } + else + { + DecryptType (type); + if (type.AsciiEqual ("BMP")) + entry.ChangeType (ImageFormat.Bmp); + else if (type.AsciiEqual ("WAV")) + entry.ChangeType (AudioFormat.Wav); + else if (type.AsciiEqual ("MID")) + entry.Name = Path.ChangeExtension (entry.Name, "mid"); + } + } + } + } + + void DecryptType (byte[] type) + { + type[0] = Binary.RotByteL ((byte)~type[0], 4); + type[1] = Binary.RotByteL ((byte)~type[1], 4); + type[2] = Binary.RotByteL ((byte)~type[2], 4); + } + + public override Stream OpenEntry (ArcFile arc, Entry entry) + { + var pent = entry as PackedEntry; + if (null == pent || !pent.IsPacked) + return base.OpenEntry (arc, entry); + var type = arc.File.View.ReadBytes (entry.Offset+0xC, 3); + DecryptType (type); + using (var input = arc.File.CreateStream (entry.Offset+0x40, entry.Size-0x40)) + { + var data = new byte[pent.UnpackedSize]; + int output_pos = 0; + if (type.AsciiEqual ("BMP")) + output_pos = PrepareBmpHeader (input, data); + LzUnpack (input, data, output_pos); + return new BinMemoryStream (data, entry.Name); + } + } + + void LzUnpack (Stream input, byte[] output, int dst) + { + var frame = new byte[0x4000]; + int frame_pos = 1; + using (var bits = new MsbBitStream (input, true)) + { + while (dst < output.Length) + { + int ctl = bits.GetNextBit(); + if (-1 == ctl) + break; + if (ctl != 0) + { + int v = bits.GetBits (8); + output[dst++] = frame[frame_pos++ & 0x3FFF] = (byte)v; + } + else + { + int offset = bits.GetBits (14); + int count = bits.GetBits (4) + 3; + while (count --> 0) + { + byte v = frame[offset++ & 0x3FFF]; + output[dst++] = frame[frame_pos++ & 0x3FFF] = v; + } + } + } + } + } + + int PrepareBmpHeader (IBinaryStream input, byte[] output) + { + input.ReadInt32(); + uint h1 = ~input.ReadUInt32(); + uint h2 = ~input.ReadUInt32(); + uint h3 = ~input.ReadUInt32(); + uint width = Binary.BigEndian ((ushort)h1); + uint height = Binary.BigEndian ((ushort)(h1 >> 16)); + output[0] = (byte)'B'; + output[1] = (byte)'M'; + LittleEndian.Pack (output.Length, output, 2); + output[10] = 54; // offset to the body + output[14] = 40; // header size + LittleEndian.Pack (width, output, 18); + LittleEndian.Pack (height, output, 22); + output[26] = 1; // planes + output[28] = Binary.RotByteL ((byte)h2, 4); // bpp + LittleEndian.Pack (Binary.RotL (h3, 16), output, 34); + LittleEndian.Pack (0xB12, output, 38); + LittleEndian.Pack (0xB12, output, 42); + LittleEndian.Pack ((uint)Binary.RotByteL ((byte)(h2 >> 16), 4), output, 46); + LittleEndian.Pack ((uint)Binary.RotByteL ((byte)(h2 >> 24), 4), output, 50); + return 54; + } + } +}