264 lines
8.5 KiB
C#
264 lines
8.5 KiB
C#
//-----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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// file="Matrix44"
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// Project: StgSharp
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// AuthorGroup: Nitload
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// Copyright (c) Nitload. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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// -----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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using StgSharp.HighPerformance;
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using StgSharp.Mathematics.Internal;
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using StgSharp.Mathematics.Numeric;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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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.Mathematics.Graphics
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{
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[StructLayout(LayoutKind.Explicit, Size = (16 * sizeof(float)), Pack = 16)]
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public unsafe struct Matrix44 : IEquatable<Matrix44>
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{
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[FieldOffset(0 * sizeof(float))] internal Column column;
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[FieldOffset(0)] internal ColumnSet4 mat;
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[FieldOffset(0)] internal MatrixKernel<float> kernel;
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internal Matrix44(
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ColumnSet4 mat
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)
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{
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Unsafe.SkipInit(out this);
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this.mat = mat;
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}
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internal Matrix44(
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Vector4 vec0,
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Vector4 vec1,
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Vector4 vec2,
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Vector4 vec3
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)
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{
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Unsafe.SkipInit(out this);
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mat.colum0 = vec0;
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mat.colum1 = vec1;
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mat.colum2 = vec2;
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mat.colum3 = vec3;
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}
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public Matrix44()
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{
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Unsafe.SkipInit(out this);
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}
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public unsafe Matrix44(
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float a00,
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float a01,
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float a02,
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float a03,
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float a10,
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float a11,
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float a12,
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float a13,
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float a20,
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float a21,
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float a22,
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float a23,
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float a30,
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float a31,
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float a32,
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float a33
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)
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{
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Unsafe.SkipInit(out this);
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mat.colum0 = new Vector4(a00, a10, a20, a30);
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mat.colum1 = new Vector4(a01, a11, a21, a31);
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mat.colum2 = new Vector4(a02, a12, a22, a32);
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mat.colum3 = new Vector4(a03, a13, a23, a33);
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}
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public unsafe float this[
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int rowNum,
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int columNum
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]
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{
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get
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{
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#if DEBUG
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if (rowNum is > 3 or < 0)
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{
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throw new ArgumentOutOfRangeException(nameof(columNum));
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}
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if (columNum is > 3 or < 0) {
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throw new ArgumentOutOfRangeException(nameof(columNum));
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}
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#endif
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return kernel[rowNum + 4 * columNum];
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}
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set
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{
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#if DEBUG
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if (rowNum is > 3 or < 0)
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{
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throw new ArgumentOutOfRangeException(nameof(columNum));
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}
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if (columNum is > 3 or < 0) {
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throw new ArgumentOutOfRangeException(nameof(columNum));
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}
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#endif
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kernel[rowNum + 4 * columNum] = value;
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}
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}
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public Matrix44 Transpose
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{
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get
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{
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Matrix44 transpose = new();
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InternalTranspose(ref transpose);
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return transpose;
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}
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}
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public static Matrix44 Unit => new Matrix44(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
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public static Matrix44 WNegativeUnit => new Matrix44(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, -1);
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public static Matrix44 XNegativeUnit => new Matrix44(-1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
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public static Matrix44 YNegativeUnit => new Matrix44(1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
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public static Matrix44 ZNegativeUnit => new Matrix44(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 1);
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public ReadOnlySpan<float> AsSpan()
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{
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return MemoryMarshal.CreateReadOnlySpan(ref Unsafe.As<ColumnSet4, float>(ref mat), 16);
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}
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public override bool Equals(
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object? obj
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)
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{
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return obj is Matrix44 x && Equals(x);
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}
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public bool Equals(
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Matrix44 other
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)
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{
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return mat.Equals(other.mat);
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}
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public override int GetHashCode()
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{
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return HashCode.Combine(mat.colum0.GetHashCode(), mat.colum1.GetHashCode(),
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mat.colum2.GetHashCode(), mat.colum3.GetHashCode());
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal unsafe void InternalTranspose(
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ref Matrix44 transpose
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)
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{
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const int f32 = 0;
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fixed (MatrixKernel<float>* source = &this.kernel, target = &transpose.kernel) {
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NativeIntrinsic.Context.mat[f32].buffer_transpose(source, target);
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}
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static unsafe Matrix44 operator -(
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Matrix44 left,
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Matrix44 right
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)
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{
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Matrix44 ret = new();
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const int f32 = 0;
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NativeIntrinsic.Context.mat[f32].buffer_sub(&left, &right, &ret, 1);
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return ret;
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}
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public static bool operator !=(
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Matrix44 left,
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Matrix44 right
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)
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{
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return !(left == right);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static unsafe Matrix44 operator *(
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Matrix44 mat,
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float value
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)
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{
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return new Matrix44(mat.mat.colum0 * value, mat.mat.colum1 * value,
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mat.mat.colum2 * value, mat.mat.colum3 * value);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static Matrix44 operator *(
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Matrix44 left,
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Matrix44 right
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)
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{
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Matrix44 ret = new();
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int f32 = (int)MatrixElementType.F32;
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NativeIntrinsic.Context.mat[f32].kernel_fma(&left, &right, &ret);
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return ret;
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static unsafe Matrix44 operator +(
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Matrix44 left,
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Matrix44 right
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)
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{
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Matrix44 ret = new();
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const int f32 = 0;
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NativeIntrinsic.Context.mat[f32].buffer_add(&left, &right, &ret, 1);
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return ret;
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}
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public static bool operator ==(
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Matrix44 left,
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Matrix44 right
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)
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{
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return left.Equals(right);
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}
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[InlineArray(4)]
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internal struct Column
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{
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private Vec4 value;
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}
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}
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}
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