126 lines
3.7 KiB
C#
126 lines
3.7 KiB
C#
using StgSharp;
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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 transpose
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[DllImport(SSGC_libname, EntryPoint = "transpose4to4",
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CallingConvention = CallingConvention.Cdecl)]
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internal static extern unsafe void Transpose4to4_internal(Mat4* source, Mat4* target);
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[DllImport(SSGC_libname, EntryPoint = "transpose4to3",
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CallingConvention = CallingConvention.Cdecl)]
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internal static extern unsafe void Transpose4to3_internal(Mat4* source, Mat3* target);
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[DllImport(SSGC_libname, EntryPoint = "transpose4to2",
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CallingConvention = CallingConvention.Cdecl)]
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internal static extern unsafe void Transpose4to2_internal(Mat4* source, Mat2* target);
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#endregion
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#region det
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[DllImport(SSGC_libname, EntryPoint = "det_mat4",
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CallingConvention = CallingConvention.Cdecl)]
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal static unsafe extern float det_mat4(Mat4* matPtr, Mat4* transpose);
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#endregion
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#region deinit_mat4
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[DllImport(SSGC_libname, EntryPoint = "deinit_mat4",
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CallingConvention = CallingConvention.Cdecl)]
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal static extern void deinit_mat4(Mat4* mat);
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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 = 16 * sizeof(float))]
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public struct Mat4 : IEquatable<Mat4>, IMat
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{
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[FieldOffset(0)] internal Vector4 colum0;
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[FieldOffset(16)] internal Vector4 colum1;
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[FieldOffset(32)] internal Vector4 colum2;
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[FieldOffset(48)] internal Vector4 colum3;
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[FieldOffset(0)] public float m00;
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[FieldOffset(4)] public float m10;
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[FieldOffset(8)] public float m20;
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[FieldOffset(12)] public float m30;
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[FieldOffset(16)] public float m01;
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[FieldOffset(20)] public float m11;
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[FieldOffset(24)] public float m21;
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[FieldOffset(28)] public float m31;
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[FieldOffset(32)] public float m02;
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[FieldOffset(36)] public float m12;
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[FieldOffset(40)] public float m22;
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[FieldOffset(44)] public float m32;
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[FieldOffset(48)] public float m03;
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[FieldOffset(52)] public float m13;
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[FieldOffset(56)] public float m23;
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[FieldOffset(60)] public float m33;
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal Mat4(
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Vector4 colum0,
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Vector4 colum1,
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Vector4 colum2,
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Vector4 colum3
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)
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{
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this.colum0 = colum0;
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this.colum1 = colum1;
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this.colum2 = colum2;
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this.colum3 = colum3;
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}
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public override bool Equals(object? obj)
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{
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return obj is Mat4 mat && Equals(mat);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public bool Equals(Mat4 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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colum3.Equals(other.colum3);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static bool operator ==(Mat4 left, Mat4 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 !=(Mat4 left, Mat4 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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