RyuKen/Ryujinx.HLE/Utilities/FontUtils.cs
Alex Barney fb1d9493a3 Adjust naming conventions and general refactoring in HLE Project (#527)
* Rename enum fields

* Naming conventions

* Remove unneeded ".this"

* Remove unneeded semicolons

* Remove unused Usings

* Don't use var

* Remove unneeded enum underlying types

* Explicitly label class visibility

* Remove unneeded @ prefixes

* Remove unneeded commas

* Remove unneeded if expressions

* Method doesn't use unsafe code

* Remove unneeded casts

* Initialized objects don't need an empty constructor

* Remove settings from DotSettings

* Revert "Explicitly label class visibility"

This reverts commit ad5eb5787c.

* Small changes

* Revert external enum renaming

* Changes from feedback

* Apply previous refactorings to the merged code
2018-12-06 09:16:24 -02:00

37 lines
1.1 KiB
C#

using System.IO;
namespace Ryujinx.HLE.Utilities
{
public static class FontUtils
{
private static readonly uint FontKey = 0x06186249;
public static byte[] DecryptFont(Stream bfttfStream)
{
uint KXor(uint In) => In ^ 0x06186249;
using (BinaryReader reader = new BinaryReader(bfttfStream))
{
using (MemoryStream ttfStream = new MemoryStream())
{
using (BinaryWriter output = new BinaryWriter(ttfStream))
{
if (KXor(reader.ReadUInt32()) != 0x18029a7f)
{
throw new InvalidDataException("Error: Input file is not in BFTTF format!");
}
bfttfStream.Position += 4;
for (int i = 0; i < (bfttfStream.Length - 8) / 4; i++)
{
output.Write(KXor(reader.ReadUInt32()));
}
return ttfStream.ToArray();
}
}
}
}
}
}