Add Chromium-only Blender WebEngine parity work

blender-5.2.0/source/blender/blenlib/BLI_quadric.h

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+/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+#pragma once
+
+/** \file
+ * \ingroup bli
+ */
+
+#include <stdbool.h>
+
+namespace blender {
+
+struct Quadric {
+  double a2, ab, ac, ad, b2, bc, bd, c2, cd, d2;
+};
+
+/* Conversion. */
+
+void BLI_quadric_from_plane(Quadric *q, const double v[4]);
+void BLI_quadric_to_vector_v3(const Quadric *q, double v[3]);
+
+void BLI_quadric_clear(Quadric *q);
+
+/* Math operations. */
+
+void BLI_quadric_add_qu_qu(Quadric *a, const Quadric *b);
+void BLI_quadric_add_qu_ququ(Quadric *r, const Quadric *a, const Quadric *b);
+void BLI_quadric_mul(Quadric *a, double scalar);
+
+/* Solve. */
+
+double BLI_quadric_evaluate(const Quadric *q, const double v[3]);
+bool BLI_quadric_optimize(const Quadric *q, double v[3], double epsilon);
+
+}  // namespace blender