diff --git a/ArcFormats/Gss/ArcARC.cs b/ArcFormats/Gss/ArcARC.cs new file mode 100644 index 00000000..4a6b5274 --- /dev/null +++ b/ArcFormats/Gss/ArcARC.cs @@ -0,0 +1,258 @@ +//! \file ArcARC.cs +//! \date 2018 May 05 +//! \brief GSS engine resource archive. +// +// 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; +using System.Collections.Generic; +using System.ComponentModel.Composition; +using System.IO; + +namespace GameRes.Formats.Gss +{ + [Export(typeof(ArchiveFormat))] + public class LsdOpener : ArchiveFormat + { + public override string Tag { get { return "ARC/LSD"; } } + public override string Description { get { return "GSS engine resource archive"; } } + public override uint Signature { get { return 0; } } + public override bool IsHierarchic { get { return false; } } + public override bool CanWrite { get { return false; } } + + public override ArcFile TryOpen (ArcView file) + { + if (!file.Name.HasExtension (".arc")) + return null; + var bin_name = Path.ChangeExtension (file.Name, "BIN"); + if (!VFS.FileExists (bin_name)) + return null; + using (var bin = VFS.OpenView (bin_name)) + { + if (!bin.View.AsciiEqual (0, "LSDARC V.100")) + return null; + int count = bin.View.ReadInt32 (0xC); + if (!IsSaneCount (count)) + return null; + using (var index = bin.CreateStream()) + { + index.Position = 0x10; + var dir = new List (count); + for (int i = 0; i < count; ++i) + { + var entry = new PackedEntry(); + entry.IsPacked = index.ReadInt32() != 0; + entry.Offset = index.ReadUInt32(); + entry.UnpackedSize = index.ReadUInt32(); + entry.Size = index.ReadUInt32(); + entry.Name = index.ReadCString(); + if (!entry.CheckPlacement (file.MaxOffset)) + return null; + dir.Add (entry); + } + return new ArcFile (file, this, dir); + } + } + } + + public override Stream OpenEntry (ArcFile arc, Entry entry) + { + var pent = entry as PackedEntry; + if (null == pent || !pent.IsPacked || !arc.File.View.AsciiEqual (entry.Offset, "LSD\x1A")) + return base.OpenEntry (arc, entry); + byte enc_method = arc.File.View.ReadByte (entry.Offset+4); + byte pack_method = arc.File.View.ReadByte (entry.Offset+5); + uint unpacked_size = arc.File.View.ReadUInt32 (entry.Offset+6); + using (var input = arc.File.CreateStream (entry.Offset+12, entry.Size-12)) + { + var data = new byte[unpacked_size]; + switch ((char)pack_method) + { + case 'D': UnpackD (input, data); break; + case 'R': UnpackR (input, data); break; + case 'H': UnpackH (input, data); break; + case 'W': UnpackW (input, data); break; + default: input.Read (data, 0, data.Length); break; + } + switch ((char)enc_method) + { + case 'B': + case 'W': + case 'S': + break; + } + return new BinMemoryStream (data, entry.Name); + } + } + + public override IImageDecoder OpenImage (ArcFile arc, Entry entry) + { + throw new NotImplementedException(); + } + + void UnpackD (IBinaryStream input, byte[] output) + { + throw new NotImplementedException(); + } + + void UnpackR (IBinaryStream input, byte[] output) + { + int dst = 0; + while (dst < output.Length) + { + int ctl = input.ReadByte(); + if (-1 == ctl) + break; + int count; + if ((ctl & 0xC0) == 0xC0) + { + count = ctl & 0xF; + ctl &= 0xF0; + } + else + { + count = ctl & 0x3F; + ctl &= 0xC0; + } + switch (ctl) + { + case 0xF0: return; + case 0x40: + input.Read (output, dst, count); + dst += count; + break; + + case 0xD0: + count = count << 8 | input.ReadUInt8(); + input.Read (output, dst, count); + dst += count; + break; + + case 0x80: + { + byte v = input.ReadUInt8(); + while (count --> 0) + output[dst++] = v; + break; + } + + case 0xE0: + { + count = count << 8 | input.ReadUInt8(); + byte v = input.ReadUInt8(); + while (count --> 0) + output[dst++] = v; + break; + } + + case 0x00: + dst += count; + break; + + case 0xC0: + count = count << 8 | input.ReadUInt8(); + dst += count; + break; + } + } + } + + void UnpackH (IBinaryStream input, byte[] output) + { + throw new NotImplementedException(); + } + + void UnpackW (IBinaryStream input, byte[] output) + { + throw new NotImplementedException(); + /* + int header_length = input.ReadUInt8(); + int shift = input.ReadUInt8(); + input.Read (output, 0, header_length); + int dst = header_length & ~1; + int v7 = 0; + while (dst < output.Length) + { + int bit = v7 & 0x1F; + int v9 = (v7 >> 3) & 0x1FFFFFFC; + int v10; + if (bit < 0x1C) + { + v10 = input.ReadInt32(); //MemInt32(&src[v9]); + } + else + { + v10 = input.ReadInt32(); //MemInt32(&src[v9 + 1]); + bit -= 8; + } + v7 += 5; + int v13 = (v10 >> bit) & 0x1F; + bit = v7 & 0x1F; + int v14 = (v7 >> 3) & 0x1FFFFFFC; + if (bit < 8) + { + v10 = MemInt32(&src[v14]); + } + else if (bit < 0x10) + { + v10 = MemInt32(&src[v14 + 1]); + bit -= 8; + } + else if (bit < 0x18) + { + v10 = MemInt32(&src[v14 + 2]); + bit -= 16; + } + else + { + v10 = MemInt32(&src[v14 + 3]); + bit -= 24; + } + v17 = v13 & 0xF; + int sample = dword_455580[v17] + (((v10 >> bit) & (dword_4554E8[v17] >> shift)) << shift); + if ((v13 & 0x10) != 0) + sample = -sample; + LittleEndian.Pack ((short)sample, output, dst); + dst += 2; + v20 = dword_455540[v17]; + if (v20 > shift) + { + v7 += v20 - shift; + } + } + */ + } + + static readonly int[] dword_455540 = { + 0x0, 0x0, 0x0, 0x0, 0x3, 0x4, 0x5, 0x6, + 0x7, 0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE + }; + static readonly int[] dword_455580 = { + 0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, + 0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000 + }; + static readonly int[] dword_4554E8 = { + 0x00, 0x00, 0x00, 0x00, 0x07, 0x0F, 0x1F, 0x3F, + 0x7F, 0xFF, 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF + }; + } +}