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better kernel fma

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This commit is contained in:
Youmu Liu
2026-01-07 18:06:36 +08:00
parent 3d488abd2e
commit 88af8d8957
11 changed files with 347 additions and 149 deletions
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StgSharp.Common/Mathematics/Linear/Matrix.cs
+2 -5
View File
@@ -178,12 +178,9 @@ namespace StgSharp.Mathematics.Numeric
)
{
// Caller guarantees: indices in range, layout is dense square.
int k_c = y >> 2;
int k_r = x >> 2;
MatrixKernelEnumerator enumerator = new(_size.KernelColumnLength, _size.KernelRowLength,
k_c, k_r);
return Buffer + _boarder.GetIndexOffset(k_c, k_r, in enumerator);
x, y);
return Buffer + _boarder.GetIndexOffset(x, y, in enumerator);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
StgSharp.Common/Mathematics/Scalar/Random.cs
+4 -8
View File
@@ -1,4 +1,4 @@
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="Random"
// Project: StgSharp
@@ -88,7 +88,7 @@ namespace StgSharp.Mathematics
///
/// </returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T Random<T>() where T: unmanaged, IConvertible, INumber<T>
public static T Random<T>() where T : unmanaged, IConvertible, INumber<T>
{
if (randomSeed == null)
@@ -97,13 +97,9 @@ namespace StgSharp.Mathematics
string originSeed =
($"{((Assembly.GetEntryAssembly() == null) ? (Assembly.GetAssembly(typeof(World))!) :
Assembly.GetEntryAssembly())}") + ($"{DateTime.UtcNow.ToString("o")}");
using (SHA256 sha = SHA256.Create()) {
randomSeed = sha.ComputeHash(Encoding.UTF8.GetBytes(originSeed));
}
}
using (SHA256 sha = SHA256.Create()) {
randomSeed = sha.ComputeHash(randomSeed);
randomSeed = SHA256.HashData(Encoding.UTF8.GetBytes(originSeed));
}
randomSeed = SHA256.HashData(randomSeed);
fixed (byte* bptr = randomSeed) {
return *(T*)bptr;
}