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implemented various Leaf resources.
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morkt
217
ArcFormats/Leaf/ImagePX.cs
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217
ArcFormats/Leaf/ImagePX.cs
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//! \file ImagePX.cs
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//! \date Thu Aug 18 05:35:34 2016
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//! \brief Leaf image format.
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//
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// Copyright (C) 2016 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.ComponentModel.Composition;
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using System.IO;
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using System.Windows.Media;
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using GameRes.Utility;
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namespace GameRes.Formats.Leaf
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{
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internal class PxMetaData : ImageMetaData
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{
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public int Type;
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public int FrameCount;
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public int BlockSize;
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public int BlocksWidth;
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public int BlocksHeight;
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}
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// XXX this format changes significantly from game to game
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[Export(typeof(ImageFormat))]
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public class PxFormat : ImageFormat
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{
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public override string Tag { get { return "PX"; } }
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public override string Description { get { return "Leaf image format"; } }
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public override uint Signature { get { return 0; } }
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public override ImageMetaData ReadMetaData (Stream stream)
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{
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var header = new byte[0x20];
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if (header.Length != stream.Read (header, 0, header.Length))
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return null;
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int type = LittleEndian.ToUInt16 (header, 0x10);
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if (0x0C == type)
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{
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int count = LittleEndian.ToInt32 (header, 0);
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if (!ArchiveFormat.IsSaneCount (count))
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return null;
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int block_size = LittleEndian.ToInt32 (header, 4);
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if (block_size <= 0)
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return null;
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int bpp = LittleEndian.ToUInt16 (header, 0x12);
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uint width = LittleEndian.ToUInt16 (header, 0x14);
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uint height = LittleEndian.ToUInt16 (header, 0x16);
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if (bpp != 32 || 0 == width || 0 == height)
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return null;
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return new PxMetaData
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{
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Width = width,
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Height = height,
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BPP = bpp,
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Type = type,
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FrameCount = count,
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BlockSize = block_size,
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BlocksWidth = LittleEndian.ToUInt16 (header, 0x1C),
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BlocksHeight = LittleEndian.ToUInt16 (header, 0x1E),
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};
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}
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else if (0x80 == type || 0x90 == type)
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{
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if (!Binary.AsciiEqual (header, 0x14, "Leaf"))
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return null;
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int count = LittleEndian.ToInt32 (header, 4);
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if (!ArchiveFormat.IsSaneCount (count))
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return null;
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if (0x20 != stream.Read (header, 0, 0x20))
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return null;
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if (0x0A != LittleEndian.ToUInt16 (header, 0x10))
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return null;
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return new PxMetaData
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{
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Width = LittleEndian.ToUInt32 (header, 0),
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Height = LittleEndian.ToUInt32 (header, 0),
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BPP = LittleEndian.ToUInt16 (header, 0x12),
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Type = type,
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FrameCount = count,
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};
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}
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return null;
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}
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public override ImageData Read (Stream stream, ImageMetaData info)
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{
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using (var reader = new PxReader (stream, (PxMetaData)info))
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{
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var pixels = reader.Unpack();
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return ImageData.Create (info, reader.Format, null, pixels, reader.Stride);
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}
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}
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public override void Write (Stream file, ImageData image)
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{
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throw new System.NotImplementedException ("PxFormat.Write not implemented");
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}
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}
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internal sealed class PxReader : IDisposable
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{
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BinaryReader m_input;
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PxMetaData m_info;
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byte[] m_output;
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int m_pixel_size;
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int m_stride;
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public PixelFormat Format { get { return PixelFormats.Bgra32; } }
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public byte[] Data { get { return m_output; } }
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public int Stride { get { return m_stride; } }
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public int FrameCount { get { return m_info.FrameCount; } }
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public PxReader (Stream input, PxMetaData info)
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{
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m_input = new ArcView.Reader (input);
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m_info = info;
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m_pixel_size = m_info.BPP / 8;
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m_stride = (int)m_info.Width * m_pixel_size;
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m_output = new byte[m_stride * (int)m_info.Height];
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}
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public byte[] Unpack (int frame = 0)
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{
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if (frame < 0 || frame >= FrameCount)
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throw new ArgumentException ("[PX] Invalid frame number", "frame");
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switch (m_info.Type)
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{
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case 0x0C: Unpack0C (frame); break;
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case 0x90: Unpack90 (frame); break;
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case 0x80: Unpack80 (frame); break;
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default: throw new NotImplementedException();
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}
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return m_output;
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}
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void Unpack0C (int frame)
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{
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var stream = m_input.BaseStream;
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int block_count = m_info.BlocksWidth * m_info.BlocksHeight;
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var block_table = new ushort[block_count];
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stream.Position = 0x20 + frame * block_count * 2;
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for (int i = 0; i < block_count; ++i)
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block_table[i] = m_input.ReadUInt16();
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int data_pos = 0x20 + FrameCount * block_count * 2;
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int block_length = 2 + (m_info.BlockSize + 2) * (m_info.BlockSize + 2) * m_pixel_size;
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int current_block = 0;
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int dst_line = 0;
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for (int by = 0; by < m_info.BlocksHeight; ++by)
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{
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for (int bx = 0; bx < m_info.BlocksWidth; ++bx)
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{
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int dst = dst_line + bx * m_info.BlockSize * m_pixel_size;
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int block_num = block_table[current_block++];
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if (block_num != 0)
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{
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stream.Position = data_pos + (block_num - 1) * block_length;
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int block_width = m_input.ReadByte() - 2;
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int block_height = m_input.ReadByte() - 2;
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int line_length = block_width * m_pixel_size;
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for (int y = 0; y < block_height; ++y)
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{
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m_input.Read (m_output, dst, line_length);
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dst += m_stride;
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stream.Seek (8, SeekOrigin.Current);
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}
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}
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}
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dst_line += m_info.BlockSize * m_stride;
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}
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}
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void Unpack90 (int frame)
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{
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m_input.BaseStream.Position = 0x40 + frame * (0x20 + m_output.Length);
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if (m_output.Length != m_input.Read (m_output, 0, m_output.Length))
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throw new EndOfStreamException();
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}
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void Unpack80 (int frame)
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{
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throw new NotImplementedException();
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}
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#region IDisposable Members
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bool _disposed = false;
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public void Dispose ()
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{
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if (!_disposed)
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{
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m_input.Dispose();
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_disposed = true;
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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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