mlr - single-header-only C++23 linear algebra math library
mlr implements aligned array arr : std::array<T,N> based vector vec::type<T,N,A> type for N-dimensional linear algebra math and Quake C++ vec_t type interface.
cmake . --install-prefix=/usr
make installChange CMakeLists.txt compile flags to fit your needs:
add_compile_options(-march=native -mfpmath=[your SIMD instruction set] -O3)#include <mlr/vector.hpp>
#include <mlr/color.hpp>
using namespace math;
int main(int argc, char** argv)
{
vec::f32<3> A = { vec::f32<3>::identity(0),
vec::f32<3>::identity(1),
vec::f32<3>::identity(2) };
A[2] = vec::f32<3>::cross3(A[0],A[1]);
A[2].print_header(3, "cross3");
A[2].print(3);
col::u8 <{R,G,B }> RGB888 = {1,2,3 }; // array type
col::u8 <{R,G,B,A }> RGBA8888 = {1,2,3,4}; // array type
col::u8 <{B,G,R,A }> BGRA8888 = {1,2,3,4}; // array type
col::u8 <{A,R,G,B }> ARGB8888 = {1,2,3,4}; // array type
col::u8 <{A,B,G,R }> ABGR8888 = {1,2,3,4}; // array type
col::f32<{R,G,B }> RGBF32 = {1,2,3 }; // array type
col::f32<{R,G,B,A }> RGBAF32 = {1,2,3,4}; // array type
col::f32<{A,R,G,B }> ARGBF32 = {1,2,3,4}; // array type
col::f32<{A,B,G,R }> ABGRF32 = {1,2,3,4}; // array type
col::f32<{B,G,R,A }> BGRAF32 = {1,2,3,4}; // array type
col::u16<{R,G,B },{5,6,5 }> RGB565 = {1,2,3 }; // bitfield type
col::u16<{R,G,B,A},{5,5,5,1}> RGBA5551 = {1,2,3,4}; // bitfield type
col::u16<{R,G,B,A},{4,4,4,4}> RGBA4444 = {1,2,3,4}; // bitfield type
col::u8 <{R,G,B },{2,4,2 }> RGB242 = {1,2,3 }; // bitfield type
col::u8 <{R,G,B,A},{2,2,2,2}> RGBA2222 = {1,2,3,0}; // bitfield type
col::u16<{R,G,B }> RGB161616 = {1,2,3 }; // array type
col::u16<{R,G,B,A }> RGBA16161616 = {1,2,3,4}; // array type
exit(EXIT_SUCCESS);
}|vector | typ|alg|vec|alg|mode |cnt
|+1.00e+00 +0.00e+00 +0.00e+00 +0.00e+00| 4| 4| 16| 16|adaptive/vector|4
|+0.00e+00 +1.00e+00 +0.00e+00 +0.00e+00| 4| 4| 16| 16|adaptive/vector|4
|cross3 | typ|alg|vec|alg|mode |cnt
|+0.00e+00 +0.00e+00 +1.00e+00 +0.00e+00| 4| 4| 16| 16|adaptive/vector|4
|cross4 | typ|alg|vec|alg|mode |cnt
|-0.00e+00 +0.00e+00 -0.00e+00 +1.00e+00| 4| 4| 16| 16|adaptive/vector|4
|cross2 MLR_CCW/MLR_CW | typ|alg|vec|alg|mode |cnt
|-0.00e+00 +1.00e+00 +0.00e+00 -1.00e+00| 4| 4| 16| 16|adaptive/vector|4
|dot4 | typ|alg|vec|alg|mode |cnt
|+0.00e+00 +0.00e+00 +0.00e+00 +0.00e+00| 4| 4| 16| 16|adaptive/vector|4
|sum | typ|alg|vec|alg|mode |cnt
|+1.00e+00 +1.00e+00 +1.00e+00 +1.00e+00| 4| 4| 16| 16|adaptive/vector|4
|vector | typ|alg|vec|alg|mode |cnt
|+1.00e+00 +0.00e+00 +0.00e+00| 4| 4| 12| 4|adaptive/scalar|3
|+0.00e+00 +1.00e+00 +0.00e+00| 4| 4| 12| 4| scalar|3
|+0.00e+00 +0.00e+00 +1.00e+00| 4| 4| 16| 16| vector|3
|un/aligned add | typ|alg|vec|alg|mode |cnt
|+0.00e+00 +1.00e+00 +1.00e+00| 4| 4| 12| 4|adaptive/scalar|3
|+1.00e+00 +0.00e+00 +1.00e+00| 4| 4| 12| 4| scalar|3
|+1.00e+00 +1.00e+00 +0.00e+00| 4| 4| 16| 16| vector|3
|color RGBA8888 | typ|alg|vec|alg|mode |cnt
|+23 +123 +53 +222 | 1| 1| 4| 4|adaptive/vector|4
|color RGB888 | typ|alg|vec|alg|mode |cnt
|+23 +123 +53 | 1| 1| 3| 1|adaptive/scalar|3