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implemented MCG images and KOE audio.
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morkt
180
ArcFormats/Mebius/ImageMCG.cs
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180
ArcFormats/Mebius/ImageMCG.cs
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//! \file ImageMCG.cs
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//! \date 2018 Oct 13
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//! \brief Mebius engine image format.
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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.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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// [041224][Studio Ring] Oyatsu no Jikan
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namespace GameRes.Formats.Mebius
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{
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internal class McgMetaData : ImageMetaData
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{
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public byte Method;
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}
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[Export(typeof(ImageFormat))]
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public class McgFormat : ImageFormat
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{
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public override string Tag { get { return "MCG/MEBIUS"; } }
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public override string Description { get { return "Mebius image format"; } }
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public override uint Signature { get { return 0x0247434D; } } // 'MCG'
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public McgFormat ()
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{
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Extensions = new string[] { "mcg", "msk" };
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Signatures = new uint[] { 0x0247434D, 0x0347434D, 0x0447434D, 0x0547434D, 0x0047434D, 0 };
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}
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public override ImageMetaData ReadMetaData (IBinaryStream file)
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{
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var header = file.ReadHeader (0x10);
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byte type = header[3];
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if (!header.AsciiEqual (0, "MCG") || type > 7)
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return null;
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return new McgMetaData {
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Width = BigEndian.ToUInt16 (header, 12),
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Height = BigEndian.ToUInt16 (header, 14),
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OffsetX = BigEndian.ToInt16 (header, 8),
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OffsetY = BigEndian.ToInt16 (header, 10),
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BPP = 5 == type || 4 == type ? 8 : 32,
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Method = type,
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};
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}
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public override ImageData Read (IBinaryStream file, ImageMetaData info)
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{
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var reader = new McgReader (file, (McgMetaData)info);
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return reader.Unpack();
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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 ("McgFormat.Write not implemented");
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}
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}
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internal class McgReader
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{
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IBinaryStream m_input;
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McgMetaData m_info;
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byte[] m_output;
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int m_stride;
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public McgReader (IBinaryStream input, McgMetaData info)
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{
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m_input = input;
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m_info = info;
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m_stride = (int)m_info.Width * (m_info.BPP / 8);
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m_output = new byte[m_stride * (int)m_info.Height];
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}
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public ImageData Unpack ()
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{
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m_input.Position = 0x10;
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switch (m_info.Method)
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{
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case 0: UnpackV0(); break;
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case 4:
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case 1: UnpackV1(); break;
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case 2: UnpackRgbRle (3); break;
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case 3: UnpackRgbRle (4); break;
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case 5: UnpackV5(); break;
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case 6:
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case 7: break;
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default: throw new InvalidFormatException();
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}
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PixelFormat format = 8 == m_info.BPP ? PixelFormats.Gray8
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: 3 == m_info.Method ? PixelFormats.Bgra32
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: PixelFormats.Bgr32;
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return ImageData.CreateFlipped (m_info, format, null, m_output, m_stride);
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}
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void UnpackV0 ()
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{
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for (int c = 0; c < 3; c++)
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for (int dst = c; dst < m_output.Length; dst += 4)
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{
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m_output[dst] = m_input.ReadUInt8();
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}
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}
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void UnpackV1 ()
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{
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m_input.Read (m_output, 0, m_output.Length);
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}
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void UnpackRgbRle (int channels)
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{
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byte rle_code = m_input.ReadUInt8();
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for (int c = 0; c < channels; c++)
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for (int dst = c; dst < m_output.Length; )
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{
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byte code = m_input.ReadUInt8();
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if (code == rle_code)
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{
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int count = m_input.ReadUInt8();
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byte v = m_input.ReadUInt8();
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for (int i = 0; i < count; ++i)
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{
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m_output[dst] = v;
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dst += 4;
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}
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}
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else
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{
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m_output[dst] = code;
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dst += 4;
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}
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}
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}
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void UnpackV5 ()
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{
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byte rle_code = m_input.ReadUInt8();
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int dst = 0;
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while (dst < m_output.Length)
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{
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byte code = m_input.ReadUInt8();
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if (code == rle_code)
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{
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int count = m_input.ReadUInt8();
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byte v = m_input.ReadUInt8();
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for (int i = 0; i < count; ++i)
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{
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m_output[dst++] = v;
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}
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}
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else
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{
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m_output[dst++] = code;
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}
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}
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}
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}
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}
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