mirror of
https://github.com/crskycode/GARbro.git
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240 lines
9.0 KiB
C#
240 lines
9.0 KiB
C#
//! \file ArcBDF.cs
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//! \date Sun Aug 23 03:17:14 2015
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//! \brief Zyx multi-frame image package.
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//
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// Copyright (C) 2015 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.Utility;
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namespace GameRes.Formats.Zyx
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{
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internal class BdfFrame : Entry
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{
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public int Number;
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public int Width;
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public int Height;
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public bool Incremental;
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}
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internal class BdfArchive : ArcFile
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{
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public byte[] FirstFrame;
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public BdfArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir)
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: base (arc, impl, dir)
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{
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}
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public byte[] ReadFrame (BdfFrame frame)
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{
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byte[] pixels;
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if (!frame.Incremental)
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{
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if (null != FirstFrame && 0 == frame.Number)
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return FirstFrame;
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pixels = new byte[frame.Width * frame.Height * 3];
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using (var input = File.CreateStream (frame.Offset, frame.Size))
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DecodeFrame (input, pixels);
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if (null == FirstFrame && 0 == frame.Number)
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FirstFrame = pixels;
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}
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else
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{
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if (null == FirstFrame)
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{
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var base_frame = Dir.First() as BdfFrame;
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FirstFrame = new byte[base_frame.Width * base_frame.Height * 3];
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using (var input = File.CreateStream (base_frame.Offset, base_frame.Size))
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DecodeFrame (input, FirstFrame);
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}
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pixels = FirstFrame.Clone() as byte[];
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int i = 1;
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foreach (BdfFrame entry in Dir.Skip(1))
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{
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if (i++ > frame.Number)
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break;
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using (var input = File.CreateStream (entry.Offset, entry.Size))
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DecodeFrame (input, pixels, entry.Incremental);
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}
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}
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return pixels;
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}
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private void DecodeFrame (Stream input, byte[] output, bool incremental = false)
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{
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int v2 = incremental ? 6 : 4;
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int dst = 0;
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while (dst < output.Length)
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{
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int count, offset;
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int cmd = input.ReadByte();
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if (-1 == cmd)
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break;
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switch (cmd)
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{
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case 0:
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{
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int src = dst-3;
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count = input.ReadByte();
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for (int i = 0; i < count; ++i)
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{
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output[dst++] = output[src];
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output[dst++] = output[src+1];
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output[dst++] = output[src+2];
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}
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break;
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}
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case 1:
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{
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count = 3 * input.ReadByte();
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offset = 3 * input.ReadByte();
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int src = dst - offset;
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Binary.CopyOverlapped (output, src, dst, count);
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dst += count;
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break;
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}
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case 2:
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{
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count = 3 * input.ReadByte();
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offset = input.ReadByte();
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offset |= input.ReadByte() << 8;
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offset *= 3;
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int src = dst - offset;
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Binary.CopyOverlapped (output, src, dst, count);
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dst += count;
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break;
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}
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case 3:
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{
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offset = 3 * input.ReadByte();
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int src = dst - offset;
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output[dst++] = output[src++];
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output[dst++] = output[src++];
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output[dst++] = output[src++];
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break;
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}
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case 4:
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{
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offset = input.ReadByte();
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offset |= input.ReadByte() << 8;
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offset *= 3;
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int src = dst - offset;
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output[dst++] = output[src++];
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output[dst++] = output[src++];
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output[dst++] = output[src++];
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break;
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}
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default:
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if (v2 < 5 || cmd > 6)
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{
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count = (cmd - v2) * 3;
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input.Read (output, dst, count);
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dst += count;
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}
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else
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{
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if (5 == cmd)
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{
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count = input.ReadByte();
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}
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else
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{
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count = input.ReadByte();
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count |= input.ReadByte() << 8;
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}
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dst += 3 * count;
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}
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break;
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}
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}
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}
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}
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[Export(typeof(ArchiveFormat))]
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public class BdfOpener : ArchiveFormat
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{
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public override string Tag { get { return "BDF"; } }
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public override string Description { get { return "Zyx multi-frame image package"; } }
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public override uint Signature { get { return 0; } }
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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 override ArcFile TryOpen (ArcView file)
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{
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int count = file.View.ReadInt32 (0);
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if (count <= 0 || count > 100)
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return null;
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int first_offset = file.View.ReadInt32 (4);
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if (0 != first_offset)
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return null;
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string base_name = Path.GetFileNameWithoutExtension (file.Name);
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int base_offset = 4 + count * 0x1C;
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int index_offset = 4;
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var dir = new List<Entry> (count);
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for (int i = 0; i < count; ++i)
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{
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var entry = new BdfFrame {
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Number = i,
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Name = string.Format ("{0}#{1:D2}.tga", base_name, i),
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Type = "image",
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Offset = base_offset + file.View.ReadUInt32 (index_offset),
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Size = file.View.ReadUInt32 (index_offset+4),
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Incremental = 0 != file.View.ReadInt32 (index_offset+8),
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Width = file.View.ReadInt32 (index_offset+0x14),
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Height = file.View.ReadInt32 (index_offset+0x18),
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};
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if (entry.Size < 4 || entry.Width <= 0 || entry.Height <= 0
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|| !entry.CheckPlacement (file.MaxOffset))
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return null;
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dir.Add (entry);
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index_offset += 0x1C;
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}
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return new BdfArchive (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 bdf = arc as BdfArchive;
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var frame = entry as BdfFrame;
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if (null == bdf || null == frame)
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return base.OpenEntry (arc, entry);
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var pixels = bdf.ReadFrame (frame);
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var header = new byte[0x12];
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header[2] = 2;
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if (frame.Incremental)
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frame = bdf.Dir.First() as BdfFrame;
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LittleEndian.Pack ((ushort)frame.Width, header, 0xc);
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LittleEndian.Pack ((ushort)frame.Height, header, 0xe);
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header[0x10] = 24;
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header[0x11] = 0x20;
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return new PrefixStream (header, new MemoryStream (pixels));
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}
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}
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}
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