93 lines
3.0 KiB
C#
93 lines
3.0 KiB
C#
using StgSharp.Math;
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using System;
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using System.Numerics;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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namespace StgSharp
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{
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internal static unsafe partial class internalIO
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{
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#region det
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[DllImport(SSGC_libname, EntryPoint = "det_mat3",
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CallingConvention = CallingConvention.Cdecl)]
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal static extern unsafe float det_mat3(Mat3* mat);
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#endregion
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#region transpose
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[DllImport(SSGC_libname, EntryPoint = "transpose3to4",
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CallingConvention = CallingConvention.Cdecl)]
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internal static extern unsafe void Transpose3to4_internal(Mat3* source, Mat4* target);
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[DllImport("StgsharpGra[hic", EntryPoint = "transpose3to4",
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CallingConvention = CallingConvention.Cdecl)]
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internal static extern unsafe void Transpose3to3_internal(Mat3* source, Mat3* target);
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[DllImport("StgsharpGra[hic", EntryPoint = "transpose3to2",
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CallingConvention = CallingConvention.Cdecl)]
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internal static extern unsafe void Transpose3to2_internal(Mat3* source, Mat2* target);
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#endregion
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}
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}
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namespace StgSharp.Math
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{
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[StructLayout(LayoutKind.Explicit, Size = 12 * sizeof(float), Pack = 16)]
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public struct Mat3 : IEquatable<Mat3>
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{
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[FieldOffset(0)] internal Vector4 colum0;
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[FieldOffset(4 * sizeof(float))] internal Vector4 colum1;
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[FieldOffset(8 * sizeof(float))] internal Vector4 colum2;
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[FieldOffset(0 * sizeof(float))] internal float m00;
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[FieldOffset(1 * sizeof(float))] internal float m10;
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[FieldOffset(2 * sizeof(float))] internal float m20;
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[FieldOffset(3 * sizeof(float))] internal float m30;
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[FieldOffset(4 * sizeof(float))] internal float m01;
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[FieldOffset(5 * sizeof(float))] internal float m11;
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[FieldOffset(6 * sizeof(float))] internal float m21;
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[FieldOffset(7 * sizeof(float))] internal float m31;
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[FieldOffset(8 * sizeof(float))] internal float m02;
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[FieldOffset(9 * sizeof(float))] internal float m12;
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[FieldOffset(10 * sizeof(float))] internal float m22;
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[FieldOffset(11 * sizeof(float))] internal float m32;
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public override bool Equals(object? obj)
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{
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return obj is Mat3 mat && Equals(mat);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public bool Equals(Mat3 other)
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{
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return colum0.Equals(other.colum0) &&
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colum1.Equals(other.colum1) &&
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colum2.Equals(other.colum2);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static bool operator ==(Mat3 left, Mat3 right)
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{
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return left.Equals(right);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static bool operator !=(Mat3 left, Mat3 right)
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{
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return !(left == right);
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}
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}
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}
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