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gdkchan 2020-01-01 12:39:09 -03:00 • committed by Thog
parent 40ef18d759
commit 92703af555
39 changed files with 285 additions and 228 deletions
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15
Ryujinx.Graphics.Gpu/Engine/MethodReport.cs
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@ -8,6 +8,9 @@ namespace Ryujinx.Graphics.Gpu.Engine
{
partial class Methods
{
private const int NsToTicksFractionNumerator = 384;
private const int NsToTicksFractionDenominator = 625;
private ulong _runningCounter;
/// <summary>
@ -103,8 +106,10 @@ namespace Ryujinx.Graphics.Gpu.Engine
/// <summary>
/// Converts a nanoseconds timestamp value to Maxwell time ticks.
/// The frequency is approximately 1.63Hz.
/// </summary>
/// <remarks>
/// The frequency is 614400000 Hz.
/// </remarks>
/// <param name="nanoseconds">Timestamp in nanoseconds</param>
/// <returns>Maxwell ticks</returns>
private static ulong ConvertNanosecondsToTicks(ulong nanoseconds)
@ -112,13 +117,13 @@ namespace Ryujinx.Graphics.Gpu.Engine
// We need to divide first to avoid overflows.
// We fix up the result later by calculating the difference and adding
// that to the result.
ulong divided = nanoseconds / 625;
ulong divided = nanoseconds / NsToTicksFractionDenominator;
ulong rounded = divided * 625;
ulong rounded = divided * NsToTicksFractionDenominator;
ulong errorBias = ((nanoseconds - rounded) * 384) / 625;
ulong errorBias = (nanoseconds - rounded) * NsToTicksFractionNumerator / NsToTicksFractionDenominator;
return divided * 384 + errorBias;
return divided * NsToTicksFractionNumerator + errorBias;
}
}
}