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fma code added

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Youmu Liu
2025-12-09 18:07:53 +08:00
parent 6acc8629b8
commit 7bcb460a39
7 changed files with 230 additions and 132 deletions
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StgSharp.Common/Mathematics/Graphic/Vec4.cs
+12 -10
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@@ -140,13 +140,13 @@ namespace StgSharp.Mathematics.Graphic
public static Vec4 FromSpan(ReadOnlySpan<float> span)
{
return new Vec4
{
X = span[0],
Y = span[1],
Z = span[2],
W = span[3]
};
if (span.Length < 4) {
throw new ArgumentException("Span length must be at least 4.", nameof(span));
}
// Read 4 floats as a Vector4 in one operation without per-element copy.
Vector4 v = MemoryMarshal.Read<Vector4>(MemoryMarshal.AsBytes(span));
return new Vec4(v);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
@@ -185,9 +185,11 @@ namespace StgSharp.Mathematics.Graphic
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Vec4 operator *(Matrix44 mat, Vec4 vec)
{
mat.InternalTranspose();
return new Vec4(Vector4.Dot(mat.transpose.colum0, vec.vec), Vector4.Dot(mat.transpose.colum1, vec.vec),
Vector4.Dot(mat.transpose.colum2, vec.vec), Vector4.Dot(mat.transpose.colum3, vec.vec));
Matrix44 transpose = mat.Transpose;
return new Vec4(Vector4.Dot(transpose.mat.colum0, vec.vec),
Vector4.Dot(transpose.mat.colum1, vec.vec),
Vector4.Dot(transpose.mat.colum2, vec.vec),
Vector4.Dot(transpose.mat.colum3, vec.vec));
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]