Thu, 03 Oct 2019 11:45:44 +0300
stuff
/* * LDForge: LDraw parts authoring CAD * Copyright (C) 2019 Teemu Piippo * * 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 3 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, see <http://www.gnu.org/licenses/>. */ #pragma once #include <cstdio> #include <cstdlib> #include <cmath> #include <QMatrix4x4> #include <QObject> #include <QPointF> #include <QSet> #include <QString> #include <QStringList> #include <QVariant> #include <QVector> #include <QVector3D> using GLRotationMatrix = QMatrix4x4; enum Axis { X, Y, Z }; enum Winding { NoWinding, CounterClockwise, Clockwise, }; /* * Special operator definition that implements the XOR operator for windings. * However, if either winding is NoWinding, then this function returns NoWinding. */ inline Winding operator^(Winding one, Winding other) { if (one == NoWinding or other == NoWinding) return NoWinding; else return static_cast<Winding>(static_cast<int>(one) ^ static_cast<int>(other)); } inline Winding& operator^=(Winding& one, Winding other) { one = one ^ other; return one; } template<typename T, std::size_t N> constexpr std::size_t countof(T(&)[N]) { return N; } static constexpr long double pi = M_PIl; // http://stackoverflow.com/a/18204188/3629665 template<typename T> inline auto rotl10(T x) -> std::enable_if_t<std::is_arithmetic_v<T>, T> { return (x << 10) | ((x >> 22) & 0x000000ff); } template<typename T> inline auto rotl20(T x) -> std::enable_if_t<std::is_arithmetic_v<T>, T> { return (x << 20) | ((x >> 12) & 0x000000ff); }