diff options
Diffstat (limited to 'source/blender/blenlib/BLI_math_vec_mpq_types.hh')
-rw-r--r-- | source/blender/blenlib/BLI_math_vec_mpq_types.hh | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/source/blender/blenlib/BLI_math_vec_mpq_types.hh b/source/blender/blenlib/BLI_math_vec_mpq_types.hh deleted file mode 100644 index 36eb0cac83c..00000000000 --- a/source/blender/blenlib/BLI_math_vec_mpq_types.hh +++ /dev/null @@ -1,91 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - */ - -#pragma once - -/** \file - * \ingroup bli - */ - -#ifdef WITH_GMP - -# include "BLI_math_mpq.hh" -# include "BLI_math_vec_types.hh" - -namespace blender { - -using mpq2 = vec_base<mpq_class, 2>; -using mpq3 = vec_base<mpq_class, 3>; - -namespace math { - -uint64_t hash_mpq_class(const mpq_class &value); - -template<> inline uint64_t vector_hash(const mpq2 &vec) -{ - return hash_mpq_class(vec.x) ^ (hash_mpq_class(vec.y) * 33); -} - -template<> inline uint64_t vector_hash(const mpq3 &vec) -{ - return hash_mpq_class(vec.x) ^ (hash_mpq_class(vec.y) * 33) ^ (hash_mpq_class(vec.z) * 33 * 37); -} - -/** - * Cannot do this exactly in rational arithmetic! - * Approximate by going in and out of doubles. - */ -template<> inline mpq_class length(const mpq2 &a) -{ - return mpq_class(sqrt(length_squared(a).get_d())); -} - -/** - * Cannot do this exactly in rational arithmetic! - * Approximate by going in and out of doubles. - */ -template<> inline mpq_class length(const mpq3 &a) -{ - return mpq_class(sqrt(length_squared(a).get_d())); -} - -/** - * The buffer avoids allocating a temporary variable. - */ -inline mpq_class distance_squared_with_buffer(const mpq3 &a, const mpq3 &b, mpq3 &buffer) -{ - buffer = a; - buffer -= b; - return dot(buffer, buffer); -} - -/** - * The buffer avoids allocating a temporary variable. - */ -inline mpq_class dot_with_buffer(const mpq3 &a, const mpq3 &b, mpq3 &buffer) -{ - buffer = a; - buffer *= b; - buffer.x += buffer.y; - buffer.x += buffer.z; - return buffer.x; -} - -} // namespace math - -} // namespace blender - -#endif /* WITH_GMP */ |