From 51a1e81a1721a3837f472374b607656aab7c30be Mon Sep 17 00:00:00 2001 From: morkt Date: Fri, 7 Apr 2017 12:40:52 +0400 Subject: [PATCH] implemented GRP audio archive. --- ArcFormats/ArcFormats.csproj | 1 + ArcFormats/ExHibit/ArcGRP.cs | 129 +++++++++++++++++++++++++++++++++++ 2 files changed, 130 insertions(+) create mode 100644 ArcFormats/ExHibit/ArcGRP.cs diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj index 27a926e2..f6e665f5 100644 --- a/ArcFormats/ArcFormats.csproj +++ b/ArcFormats/ArcFormats.csproj @@ -99,6 +99,7 @@ + diff --git a/ArcFormats/ExHibit/ArcGRP.cs b/ArcFormats/ExHibit/ArcGRP.cs new file mode 100644 index 00000000..bc2d9ea1 --- /dev/null +++ b/ArcFormats/ExHibit/ArcGRP.cs @@ -0,0 +1,129 @@ +//! \file ArcGRP.cs +//! \date Thu Apr 06 16:41:59 2017 +//! \brief ExHIBIT audio 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; +using System.Collections.Generic; +using System.ComponentModel.Composition; +using System.Text; +using System.Text.RegularExpressions; + +namespace GameRes.Formats.ExHibit +{ + [Export(typeof(ArchiveFormat))] + public class GrpOpener : ArchiveFormat + { + public override string Tag { get { return "GRP/EXHIBIT"; } } + public override string Description { get { return "ExHIBIT engine audio resource archive"; } } + public override uint Signature { get { return 0; } } + public override bool IsHierarchic { get { return false; } } + public override bool CanWrite { get { return false; } } + + static readonly Regex s_ResNameRe = new Regex (@"res(\d+)\.grp$", RegexOptions.IgnoreCase); + + public override ArcFile TryOpen (ArcView file) + { + var match = s_ResNameRe.Match (file.Name); + if (!match.Success || file.View.AsciiEqual (0, "AiFS")) + return null; + + var digits = match.Groups[1]; + int arc_num = UInt16.Parse (digits.Value); + int toc_num = arc_num - 1; + int arc_index = 1; // number by which archive is referenced within toc file + + // look for toc file + ArcView toc_file = null; + var toc_name_sb = new StringBuilder (file.Name.Length); + while (toc_num >= 0) + { + toc_name_sb.Clear(); + toc_name_sb.Append (file.Name); + toc_name_sb.Remove (digits.Index, digits.Length); + toc_name_sb.Insert (digits.Index, toc_num.ToString ("D4")); + var toc_name = toc_name_sb.ToString(); + if (!VFS.FileExists (toc_name)) + return null; + toc_file = VFS.OpenView (toc_name); + if (toc_file.View.AsciiEqual (0, "AiFS")) + break; + toc_file.Dispose(); + toc_file = null; + toc_num--; + arc_index++; + } + if (null == toc_file) + return null; + using (toc_file) + { + int res_count = toc_file.View.ReadInt32 (0xC); + if (res_count < arc_index) + return null; + uint index_offset = 0x10; + // find archive reference within toc file + bool arc_found = false; + for (int i = 0; i < res_count && index_offset < toc_file.MaxOffset; ++i) + { + if (toc_file.View.ReadInt32 (index_offset) == arc_index) + { + arc_found = true; + break; + } + uint entries = toc_file.View.ReadUInt32 (index_offset+0xC); + index_offset += 0x10 + entries * 8; + } + if (!arc_found) + return null; + int count = toc_file.View.ReadInt32 (index_offset+0xC); + if (!IsSaneCount (count)) + return null; + int start_index = toc_file.View.ReadInt32 (index_offset+4); + index_offset += 0x10; + var dir = new List (count); + for (int i = 0; i < count; ++i) + { + uint offset = toc_file.View.ReadUInt32 (index_offset); + uint size = toc_file.View.ReadUInt32 (index_offset+4); + if (size != 0) + { + var entry = new Entry { + Name = string.Format ("{0:D5}.ogg", start_index+i), + Type = "audio", + Offset = offset, + Size = size, + }; + entry.Offset = toc_file.View.ReadUInt32 (index_offset); + if (!entry.CheckPlacement (file.MaxOffset)) + return null; + dir.Add (entry); + } + index_offset += 8; + } + if (0 == dir.Count) + return null; + return new ArcFile (file, this, dir); + } + } + } +}