mirror of
https://github.com/crskycode/GARbro.git
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292 lines
10 KiB
C#
292 lines
10 KiB
C#
//! \file ArcA5R.cs
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//! \date 2018 Mar 16
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//! \brief Pinky Soft resource archive.
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//
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// Copyright (C) 2018 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.IO;
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using System.Linq;
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using GameRes.Compression;
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namespace GameRes.Formats.Pinky
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{
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internal class A5Segment
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{
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public uint Offset;
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public uint Size;
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public uint UnpackedSize;
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public byte Type;
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public byte Compression;
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public bool IsCompressed { get { return 3 == Compression; } }
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}
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internal class A5rEntry : PackedEntry
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{
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public IEnumerable<A5Segment> Segments;
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}
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[Export(typeof(ArchiveFormat))]
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public class A5rOpener : ArchiveFormat
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{
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public override string Tag { get { return "A5R"; } }
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public override string Description { get { return "Pinky Soft resource archive"; } }
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public override uint Signature { get { return 0x53524350; } } // 'PCRS'
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public override bool IsHierarchic { get { return false; } }
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public override bool CanWrite { get { return false; } }
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public A5rOpener ()
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{
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Signatures = new uint[] { 0x53524350, 0x42494C50 }; // 'PLIB'
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Extensions = new string[] { "a5r", "a5e" };
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}
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public override ArcFile TryOpen (ArcView file)
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{
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uint id = file.View.ReadUInt32 (0);
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if (file.View.ReadUInt32 (4) != ~id)
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return null;
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int count = file.View.ReadInt32 (0x30);
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if (!IsSaneCount (count))
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return null;
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uint index_offset = file.View.ReadUInt32 (0x34);
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if (index_offset >= file.MaxOffset)
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return null;
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var base_name = Path.GetFileNameWithoutExtension (file.Name);
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uint next_offset = file.View.ReadUInt32 (index_offset);
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var segments = new A5Segment[count];
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for (int i = 0; i < count; ++i)
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{
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var segment = new A5Segment {
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Offset = next_offset,
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UnpackedSize = file.View.ReadUInt32 (index_offset+4),
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Type = file.View.ReadByte (index_offset+8),
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Compression = file.View.ReadByte (index_offset+9),
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};
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next_offset = file.View.ReadUInt32 (index_offset+0xA);
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if (next_offset > file.MaxOffset || next_offset < segment.Offset)
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return null;
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segment.Size = (uint)(next_offset - segment.Offset);
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segments[i] = segment;
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index_offset += 0xA;
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}
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var dir = new List<Entry> (count);
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var riff_buffer = new byte[8];
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for (int i = 0; i < count; )
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{
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A5rEntry entry;
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var segment = segments[i];
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var name = string.Format ("{0}#{1:D5}", base_name, i);
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if (0x3C == segment.Type)
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{
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Stream input = file.CreateStream (segment.Offset, segment.Size);
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if (3 == segment.Compression)
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input = new ZLibStream (input, CompressionMode.Decompress);
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using (input)
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{
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if (8 == input.Read (riff_buffer, 0, 8) && riff_buffer.AsciiEqual ("RIFF"))
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{
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uint riff_size = riff_buffer.ToUInt32 (4);
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entry = new A5rEntry {
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Name = name + ".wav",
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Type = "audio",
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Offset = segment.Offset,
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Size = 0,
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UnpackedSize = 0,
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};
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var segment_list = new List<A5Segment>();
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for (;;)
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{
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entry.Size += segment.Size;
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entry.UnpackedSize += segment.UnpackedSize;
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entry.IsPacked |= segment.Compression == 3;
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segment_list.Add (segment);
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++i;
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if (i >= count || entry.UnpackedSize >= riff_size)
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break;
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segment = segments[i];
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if (segment.Type != 0x3C)
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break;
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}
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entry.Segments = segment_list;
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dir.Add (entry);
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continue;
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}
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}
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}
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if (0x3E == segment.Type)
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name += ".bmp";
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entry = new A5rEntry {
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Name = name,
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Type = 0x3E == segment.Type ? "image" : "",
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Offset = segment.Offset,
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Size = segment.Size,
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UnpackedSize = segment.UnpackedSize,
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IsPacked = segment.Compression == 3,
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Segments = new A5Segment[1] { segment },
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};
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dir.Add (entry);
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++i;
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}
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return new ArcFile (file, this, dir);
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}
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public override Stream OpenEntry (ArcFile arc, Entry entry)
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{
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var a5ent = (A5rEntry)entry;
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Stream input;
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if (a5ent.Segments.Count() == 1)
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{
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input = arc.File.CreateStream (entry.Offset, entry.Size);
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if (a5ent.IsPacked)
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input = new ZLibStream (input, CompressionMode.Decompress);
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}
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else
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{
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input = new A5rStream (arc.File, a5ent);
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}
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return input;
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}
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}
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internal class A5rStream : Stream
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{
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ArcView m_file;
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A5rEntry m_entry;
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IEnumerator<A5Segment> m_segment;
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Stream m_stream;
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long m_offset = 0;
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bool m_eof = false;
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public override bool CanRead { get { return !disposed; } }
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public override bool CanSeek { get { return false; } }
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public override bool CanWrite { get { return false; } }
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public override long Length { get { return m_entry.UnpackedSize; } }
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public override long Position
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{
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get { return m_offset; }
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set { throw new NotSupportedException ("A5rStream.Position not supported."); }
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}
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public A5rStream (ArcView file, A5rEntry entry)
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{
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m_file = file;
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m_entry = entry;
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m_segment = entry.Segments.GetEnumerator();
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NextSegment();
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}
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private void NextSegment ()
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{
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if (!m_segment.MoveNext())
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{
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m_eof = true;
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return;
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}
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if (null != m_stream)
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m_stream.Dispose();
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var segment = m_segment.Current;
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m_stream = m_file.CreateStream (segment.Offset, segment.Size);
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if (segment.IsCompressed)
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m_stream = new ZLibStream (m_stream, CompressionMode.Decompress);
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}
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public override int Read (byte[] buffer, int offset, int count)
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{
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int total = 0;
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while (!m_eof && count > 0)
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{
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int read = m_stream.Read (buffer, offset, count);
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if (0 != read)
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{
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m_offset += read;
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total += read;
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offset += read;
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count -= read;
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}
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if (0 != count)
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NextSegment();
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}
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return total;
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}
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public override int ReadByte ()
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{
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int b = -1;
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while (!m_eof)
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{
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b = m_stream.ReadByte();
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if (-1 != b)
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break;
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NextSegment();
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}
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return b;
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}
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public override void Flush ()
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{
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}
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public override long Seek (long offset, SeekOrigin origin)
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{
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throw new NotSupportedException ("A5rStream.Seek method is not supported");
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}
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public override void SetLength (long length)
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{
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throw new NotSupportedException ("A5rStream.SetLength method is not supported");
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}
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public override void Write (byte[] buffer, int offset, int count)
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{
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throw new NotSupportedException ("A5rStream.Write method is not supported");
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}
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public override void WriteByte (byte value)
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{
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throw new NotSupportedException("A5rStream.WriteByte method is not supported");
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}
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#region IDisposable Members
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bool disposed = false;
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protected override void Dispose (bool disposing)
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{
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if (!disposed)
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{
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if (disposing)
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{
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if (null != m_stream)
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m_stream.Dispose();
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m_segment.Dispose();
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}
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disposed = true;
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base.Dispose (disposing);
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}
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}
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#endregion
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}
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}
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