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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2018 Blender Foundation. All rights reserved. */
/** \file
* \ingroup intern_eigen
*/
#ifndef __EIGEN3_MATRIX_C_API_CC__
#define __EIGEN3_MATRIX_C_API_CC__
/* Eigen gives annoying huge amount of warnings here, silence them! */
#if defined(__GNUC__) && !defined(__clang__)
# pragma GCC diagnostic ignored "-Wlogical-op"
#endif
#ifdef __EIGEN3_MATRIX_C_API_CC__ /* quiet warning */
#endif
#include <Eigen/Core>
#include <Eigen/Dense>
#include "matrix.h"
using Eigen::Map;
using Eigen::Matrix4f;
bool EIG_invert_m4_m4(float inverse[4][4], const float matrix[4][4])
{
Map<Matrix4f> M = Map<Matrix4f>((float *)matrix);
Matrix4f R;
bool invertible = true;
M.computeInverseWithCheck(R, invertible, 0.0f);
if (!invertible) {
R = R.Zero();
}
memcpy(inverse, R.data(), sizeof(float) * 4 * 4);
return invertible;
}
#endif /* __EIGEN3_MATRIX_C_API_CC__ */
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