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![Alex Barney](/assets/img/avatar_default.png)
* Fix typos * Remove unneeded using statements * Enforce var style more * Remove redundant qualifiers * Fix some indentation * Disable naming warnings on files with external enum names * Fix build * Mass find & replace for comments with no spacing * Standardize todo capitalization and for/if spacing
109 lines
3.5 KiB
C#
109 lines
3.5 KiB
C#
using Ryujinx.HLE.Loaders.Compression;
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using System;
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using System.IO;
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namespace Ryujinx.HLE.Loaders.Executables
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{
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class NxStaticObject : IExecutable
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{
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public byte[] Text { get; private set; }
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public byte[] Ro { get; private set; }
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public byte[] Data { get; private set; }
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public int TextOffset { get; private set; }
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public int RoOffset { get; private set; }
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public int DataOffset { get; private set; }
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public int BssSize { get; private set; }
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public int BssOffset => DataOffset + Data.Length;
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[Flags]
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private enum NsoFlags
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{
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IsTextCompressed = 1 << 0,
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IsRoCompressed = 1 << 1,
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IsDataCompressed = 1 << 2,
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HasTextHash = 1 << 3,
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HasRoHash = 1 << 4,
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HasDataHash = 1 << 5
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}
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public NxStaticObject(Stream input)
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{
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BinaryReader reader = new BinaryReader(input);
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input.Seek(0, SeekOrigin.Begin);
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int nsoMagic = reader.ReadInt32();
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int version = reader.ReadInt32();
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int reserved = reader.ReadInt32();
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int flagsMsk = reader.ReadInt32();
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int textOffset = reader.ReadInt32();
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int textMemOffset = reader.ReadInt32();
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int textDecSize = reader.ReadInt32();
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int modNameOffset = reader.ReadInt32();
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int roOffset = reader.ReadInt32();
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int roMemOffset = reader.ReadInt32();
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int roDecSize = reader.ReadInt32();
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int modNameSize = reader.ReadInt32();
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int dataOffset = reader.ReadInt32();
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int dataMemOffset = reader.ReadInt32();
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int dataDecSize = reader.ReadInt32();
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int bssSize = reader.ReadInt32();
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byte[] buildId = reader.ReadBytes(0x20);
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int textSize = reader.ReadInt32();
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int roSize = reader.ReadInt32();
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int dataSize = reader.ReadInt32();
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input.Seek(0x24, SeekOrigin.Current);
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int dynStrOffset = reader.ReadInt32();
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int dynStrSize = reader.ReadInt32();
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int dynSymOffset = reader.ReadInt32();
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int dynSymSize = reader.ReadInt32();
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byte[] textHash = reader.ReadBytes(0x20);
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byte[] roHash = reader.ReadBytes(0x20);
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byte[] dataHash = reader.ReadBytes(0x20);
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NsoFlags flags = (NsoFlags)flagsMsk;
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TextOffset = textMemOffset;
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RoOffset = roMemOffset;
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DataOffset = dataMemOffset;
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BssSize = bssSize;
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// Text segment
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input.Seek(textOffset, SeekOrigin.Begin);
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Text = reader.ReadBytes(textSize);
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if (flags.HasFlag(NsoFlags.IsTextCompressed) && textSize != 0)
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{
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Text = Lz4.Decompress(Text, textDecSize);
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}
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// Read-only data segment
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input.Seek(roOffset, SeekOrigin.Begin);
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Ro = reader.ReadBytes(roSize);
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if (flags.HasFlag(NsoFlags.IsRoCompressed) && roSize != 0)
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{
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Ro = Lz4.Decompress(Ro, roDecSize);
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}
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// Data segment
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input.Seek(dataOffset, SeekOrigin.Begin);
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Data = reader.ReadBytes(dataSize);
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if (flags.HasFlag(NsoFlags.IsDataCompressed) && dataSize != 0)
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{
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Data = Lz4.Decompress(Data, dataDecSize);
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}
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}
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}
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} |