2018-09-12 19:31:26 +08:00
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//! \file ImageGRP.cs
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//! \date 2018 Mar 30
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//! \brief BOM 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.ComponentModel.Composition;
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using System.IO;
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using System.Windows.Media;
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namespace GameRes.Formats.Bom
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{
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internal class GrpMetaData : ImageMetaData
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{
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public int Stride;
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public int Type;
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public uint DataOffset;
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}
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[Export(typeof(ImageFormat))]
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public class GrpFormat : ImageFormat
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{
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public override string Tag { get { return "GRP/RG"; } }
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public override string Description { get { return "BOM image format"; } }
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public override uint Signature { get { return 0x01004752; } } // 'RG'
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public override ImageMetaData ReadMetaData (IBinaryStream file)
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{
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var header = file.ReadHeader (0x24);
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if ((header[6] & 0x80) == 0)
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return null;
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int bpp;
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switch (header[4])
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{
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case 5: bpp = 4; break;
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case 4: bpp = 8; break;
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case 3: bpp = 16; break;
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case 2: bpp = 24; break;
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case 1: bpp = 32; break;
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default: return null;
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}
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return new GrpMetaData {
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Width = header.ToUInt16 (8),
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Height = header.ToUInt16 (10),
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BPP = bpp,
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Stride = header.ToInt32 (0x18),
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Type = header[4],
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DataOffset = header.ToUInt16 (0x22),
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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 GrpReader (file, (GrpMetaData)info);
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var pixels = reader.Unpack();
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return ImageData.Create (info, reader.Format, null, pixels);
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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 ("GrpFormat.Write not implemented");
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}
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}
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internal class GrpReader
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{
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IBinaryStream m_input;
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GrpMetaData m_info;
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byte[] m_output;
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public GrpReader (IBinaryStream file, GrpMetaData info)
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{
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m_input = file;
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m_info = info;
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m_output = new byte[m_info.Stride * (int)m_info.Height];
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}
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int m_dst;
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public byte[] Unpack ()
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{
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m_input.Position = m_info.DataOffset;
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uint size = m_input.ReadUInt32();
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if ((size & 0x80000000) != 0)
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{
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m_input.Read (m_output, 0, m_output.Length);
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return m_output;
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}
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Init();
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var frame = new byte[0x1000];
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for (int i = 0; i < 0xFC0; ++i)
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frame[i] = 0x20;
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int frame_pos = 0xFC0;
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m_dst = 0;
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while (m_dst < m_output.Length)
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{
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int ctl = sub_408BE0();
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if (ctl >= 0x100)
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{
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v5 = 0;
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int count = ctl - 0xFD;
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int offset = (frame_pos - sub_408E50() - 1) & 0xFFF;
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for (int i = 0; i < count; ++i)
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{
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byte v = frame[(offset + i) & 0xFFF];
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PutByte (v);
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frame[frame_pos++ & 0xFFF] = v;
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}
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}
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else
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{
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PutByte (m_dst, ctl);
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frame[frame_pos++ & 0xFFF] = (byte)ctl;
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}
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}
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return m_output;
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}
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int dword_6FFE54;
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int dword_6FF460;
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int dword_709868;
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int dword_703E64;
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int m_cached_bits;
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void Init ()
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{
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dword_6FFE54 = -1;
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dword_6FF460 = 0;
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dword_709868 = 0;
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dword_703E64 = 0;
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int v0 = 0;
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for (int i = 0; i < 318; ++i)
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{
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dword_6FF464[i] = 1;
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dword_70A258[i] = i;
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dword_703E68[i] = i + 635;
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}
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int v1 = 0;
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int v2 = 318;
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for (int i = 0; i <= 316; ++i)
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{
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v4 = dword_6FF464[v1] + dword_6FF468[v1];
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2020-03-30 21:25:15 +08:00
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dword_70986C[v1 + 1] = v2;
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2018-09-12 19:31:26 +08:00
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dword_6FF95C[i] = v4;
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dword_704360[i] = v1;
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dword_70986C[v1] = v2;
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v1 += 2;
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++v2;
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}
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dword_70A254 = 0;
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m_cached_bits = 0;
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byte_7137B4 = 0;
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m_bits = 0;
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dword_7137B0 = 0;
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dword_6FFE50 = 0xFFFF;
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}
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2020-03-30 21:25:15 +08:00
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int[] dword_704360 = new int[317];
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int[] dword_6FF95C = new int[317];
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int[] dword_70986C = new int[634];
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2018-09-12 19:31:26 +08:00
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int sub_408BE0 ()
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{
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2020-03-30 21:25:15 +08:00
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for (int i = dword_704360[316]; i < 635; i = dword_703E68[GetNextBit() + i])
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2018-09-12 19:31:26 +08:00
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;
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int ctl = i - 635;
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sub_408C80 (ctl);
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return ctl;
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}
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int m_bits;
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int GetNextBit ()
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{
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if (m_cached_bits <= 8)
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{
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byte v = m_input.ReadUInt8();
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m_bits |= (v << (8 - m_cached_bits));
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m_cached_bits += 8;
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}
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m_bits <<= 1;
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m_cached_bits--;
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return (m_bits >> 16) & 1;
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}
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void sub_408C80 (int a1)
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{
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unsigned int v2; // ecx@4
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unsigned int v3; // esi@4
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int *v4; // ecx@5
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unsigned int v5; // eax@6
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int v6; // eax@7
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int v7; // ecx@7
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int v8; // eax@7
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int v9; // esi@9
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2020-03-30 21:25:15 +08:00
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if (dword_6FF95C[316] == 0x8000)
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2018-09-12 19:31:26 +08:00
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sub_408D50();
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int v1 = dword_70A258[a1];
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do
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{
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v2 = dword_6FF464[v1] + 1;
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dword_6FF464[v1] = v2;
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v3 = v2;
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if ( v2 > dword_6FF468[v1] )
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{
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v4 = &dword_6FF46C[v1 + 1];
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if ( v3 > dword_6FF46C[v1] )
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{
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do
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{
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v5 = *v4;
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++v4;
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}
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while ( v3 > v5 );
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}
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dword_6FF464[v1] = *(v4 - 2);
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*(v4 - 2) = v3;
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v6 = v4 - dword_6FF464;
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v7 = dword_703E68[v1];
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v8 = v6 - 2;
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dword_70986C[v7] = v8;
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if ( v7 < 635 )
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dword_709870[v7] = v8;
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v9 = dword_703E68[v8];
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dword_703E68[v8] = v7;
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dword_70986C[v9] = v1;
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if ( v9 < 635 )
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dword_709870[v9] = v1;
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dword_703E68[v1] = v9;
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v1 = v8;
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}
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v1 = dword_70986C[v1];
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}
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while (v1 != 0);
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}
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2020-03-30 21:25:15 +08:00
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void sub_408D50 ()
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{
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int v3; // ecx@2
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int v4; // edi@3
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int v5; // ecx@5
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int *v6; // ebx@5
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unsigned int v7; // eax@6
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int *v8; // edx@6
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int v9; // ecx@6
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int *v10; // edi@6
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unsigned int v11; // ebp@7
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int v12; // ecx@8
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int *i; // edi@8
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int *v14; // eax@10
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int *v15; // ecx@10
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int v16; // edx@13
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int *v17; // ecx@13
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int v18; // eax@14
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int v19; // [sp+10h] [bp-8h]@5
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signed int v20; // [sp+14h] [bp-4h]@5
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int v1 = 0;
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int v2 = 0;
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for (int i = 0; i < 635; ++i)
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{
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int v3 = dword_703E68[i];
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if (v3 >= 635)
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{
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v4 = dword_6FF464[i];
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dword_703E68[v2] = v3;
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dword_6FF464[v2] = (int)((uint)(v4 + 1) >> 1);
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++v2;
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}
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}
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int v5 = 318;
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v19 = 0;
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v20 = 318;
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v6 = dword_6FF464;
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do
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{
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v7 = *v6 + v6[1];
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v8 = &dword_6FF95C[v1];
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v9 = v5 - 1;
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v10 = &dword_6FF95C[v1 - 1];
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dword_6FF95C[v1] = v7;
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if ( v7 < *v10 )
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{
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do
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{
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v11 = *(v10 - 1);
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--v10;
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--v9;
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}
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while ( v7 < v11 );
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}
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v12 = v9 + 1;
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for ( i = &dword_6FF464[v12]; v8 > i; --v8 )
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*v8 = *(v8 - 1);
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*i = v7;
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v14 = &dword_704360[v1];
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v15 = &dword_703E68[v12];
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if ( &dword_704360[v1] > v15 )
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{
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do
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{
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*v14 = *(v14 - 1);
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--v14;
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}
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while ( v14 > v15 );
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}
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v6 += 2;
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|
|
|
|
*v15 = v19;
|
|
|
|
|
++v1;
|
|
|
|
|
v5 = v20 + 1;
|
|
|
|
|
v19 += 2;
|
|
|
|
|
++v20;
|
|
|
|
|
}
|
|
|
|
|
while ( v1 < 317 );
|
|
|
|
|
v16 = 0;
|
|
|
|
|
v17 = dword_703E68;
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
v18 = *v17;
|
|
|
|
|
if ( *v17 < 635 )
|
|
|
|
|
dword_70986C[v18 + 1] = v16;
|
|
|
|
|
dword_70986C[v18] = v16;
|
|
|
|
|
++v17;
|
|
|
|
|
++v16;
|
|
|
|
|
}
|
|
|
|
|
while ( (signed int)v17 < (signed int)&unk_704854 );
|
|
|
|
|
}
|
|
|
|
|
|
2018-09-12 19:31:26 +08:00
|
|
|
void PutByte (int a1)
|
|
|
|
|
{
|
|
|
|
|
if (dword_6FF460 != 0)
|
|
|
|
|
{
|
|
|
|
|
int v1 = (a1 & 0x7F) << (7 * dword_6FF460 - 7);
|
|
|
|
|
dword_709868 += v1;
|
|
|
|
|
if ((a1 & 0x80) != 0)
|
|
|
|
|
{
|
|
|
|
|
++dword_6FF460;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
int count = dword_709868;
|
|
|
|
|
dword_6FF460 = 0;
|
|
|
|
|
while (count --> 0 && m_dst < m_output.Length)
|
|
|
|
|
{
|
|
|
|
|
m_output[m_dst++] = (byte)dword_6FFE54;
|
|
|
|
|
}
|
|
|
|
|
dword_6FFE54 = -1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else if (dword_6FFE54 >= 0)
|
|
|
|
|
{
|
|
|
|
|
if (dword_6FFE54 == a1)
|
|
|
|
|
{
|
|
|
|
|
dword_6FF460 = 1;
|
|
|
|
|
dword_709868 = 0;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
m_output[m_dst++] = (byte)dword_6FFE54;
|
|
|
|
|
dword_6FFE54 = a1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
dword_6FF460 = 0;
|
|
|
|
|
dword_6FFE54 = a1;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
