diff options
Diffstat (limited to 'src/gui/math3d/qquaternion.h')
| -rw-r--r-- | src/gui/math3d/qquaternion.h | 239 |
1 files changed, 105 insertions, 134 deletions
diff --git a/src/gui/math3d/qquaternion.h b/src/gui/math3d/qquaternion.h index 99ee9085f9..7cfbd9b818 100644 --- a/src/gui/math3d/qquaternion.h +++ b/src/gui/math3d/qquaternion.h @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #ifndef QQUATERNION_H #define QQUATERNION_H @@ -53,158 +17,165 @@ QT_BEGIN_NAMESPACE class QMatrix4x4; class QVariant; -class Q_GUI_EXPORT QQuaternion +class QT6_ONLY(Q_GUI_EXPORT) QQuaternion { public: - QQuaternion(); - explicit QQuaternion(Qt::Initialization) {} - QQuaternion(float scalar, float xpos, float ypos, float zpos); + constexpr QQuaternion() noexcept; + explicit QQuaternion(Qt::Initialization) noexcept {} + constexpr QQuaternion(float scalar, float xpos, float ypos, float zpos) noexcept; #ifndef QT_NO_VECTOR3D - QQuaternion(float scalar, const QVector3D& vector); + constexpr QQuaternion(float scalar, const QVector3D &vector) noexcept; #endif #ifndef QT_NO_VECTOR4D - explicit QQuaternion(const QVector4D& vector); + constexpr explicit QQuaternion(const QVector4D &vector) noexcept; #endif - bool isNull() const; - bool isIdentity() const; + constexpr bool isNull() const noexcept; + constexpr bool isIdentity() const noexcept; #ifndef QT_NO_VECTOR3D - QVector3D vector() const; - void setVector(const QVector3D& vector); + constexpr QVector3D vector() const noexcept; + constexpr void setVector(const QVector3D &vector) noexcept; #endif - void setVector(float x, float y, float z); + constexpr void setVector(float x, float y, float z) noexcept; - float x() const; - float y() const; - float z() const; - float scalar() const; + constexpr float x() const noexcept; + constexpr float y() const noexcept; + constexpr float z() const noexcept; + constexpr float scalar() const noexcept; - void setX(float x); - void setY(float y); - void setZ(float z); - void setScalar(float scalar); + constexpr void setX(float x) noexcept; + constexpr void setY(float y) noexcept; + constexpr void setZ(float z) noexcept; + constexpr void setScalar(float scalar) noexcept; - constexpr static inline float dotProduct(const QQuaternion &q1, const QQuaternion &q2); + constexpr static float dotProduct(const QQuaternion &q1, const QQuaternion &q2) noexcept; - float length() const; - float lengthSquared() const; + // ### Qt 7: make the next four constexpr + // (perhaps using std::hypot, constexpr in C++26, or constexpr qHypot) + QT7_ONLY(Q_GUI_EXPORT) float length() const; + QT7_ONLY(Q_GUI_EXPORT) float lengthSquared() const; - [[nodiscard]] QQuaternion normalized() const; - void normalize(); + [[nodiscard]] QT7_ONLY(Q_GUI_EXPORT) QQuaternion normalized() const; + QT7_ONLY(Q_GUI_EXPORT) void normalize(); - inline QQuaternion inverted() const; + constexpr QQuaternion inverted() const noexcept; - [[nodiscard]] QQuaternion conjugated() const; + [[nodiscard]] constexpr QQuaternion conjugated() const noexcept; - QVector3D rotatedVector(const QVector3D& vector) const; + QT7_ONLY(Q_GUI_EXPORT) QVector3D rotatedVector(const QVector3D &vector) const; - QQuaternion &operator+=(const QQuaternion &quaternion); - QQuaternion &operator-=(const QQuaternion &quaternion); - QQuaternion &operator*=(float factor); - QQuaternion &operator*=(const QQuaternion &quaternion); - QQuaternion &operator/=(float divisor); + constexpr QQuaternion &operator+=(const QQuaternion &quaternion) noexcept; + constexpr QQuaternion &operator-=(const QQuaternion &quaternion) noexcept; + constexpr QQuaternion &operator*=(float factor) noexcept; + constexpr QQuaternion &operator*=(const QQuaternion &quaternion) noexcept; + constexpr QQuaternion &operator/=(float divisor); QT_WARNING_PUSH QT_WARNING_DISABLE_FLOAT_COMPARE - friend inline bool operator==(const QQuaternion &q1, const QQuaternion &q2) noexcept + friend constexpr bool operator==(const QQuaternion &q1, const QQuaternion &q2) noexcept { return q1.wp == q2.wp && q1.xp == q2.xp && q1.yp == q2.yp && q1.zp == q2.zp; } - friend inline bool operator!=(const QQuaternion &q1, const QQuaternion &q2) noexcept + friend constexpr bool operator!=(const QQuaternion &q1, const QQuaternion &q2) noexcept { return !(q1 == q2); } QT_WARNING_POP - friend inline const QQuaternion operator+(const QQuaternion &q1, const QQuaternion &q2); - friend inline const QQuaternion operator-(const QQuaternion &q1, const QQuaternion &q2); - friend inline const QQuaternion operator*(float factor, const QQuaternion &quaternion); - friend inline const QQuaternion operator*(const QQuaternion &quaternion, float factor); - friend inline const QQuaternion operator*(const QQuaternion &q1, const QQuaternion& q2); - friend inline const QQuaternion operator-(const QQuaternion &quaternion); - friend inline const QQuaternion operator/(const QQuaternion &quaternion, float divisor); + friend constexpr QQuaternion operator+(const QQuaternion &q1, const QQuaternion &q2) noexcept; + friend constexpr QQuaternion operator-(const QQuaternion &q1, const QQuaternion &q2) noexcept; + friend constexpr QQuaternion operator*(float factor, const QQuaternion &quaternion) noexcept; + friend constexpr QQuaternion operator*(const QQuaternion &quaternion, float factor) noexcept; + friend constexpr QQuaternion operator*(const QQuaternion &q1, const QQuaternion &q2) noexcept; + friend constexpr QQuaternion operator-(const QQuaternion &quaternion) noexcept; + friend constexpr QQuaternion operator/(const QQuaternion &quaternion, float divisor); - friend inline bool qFuzzyCompare(const QQuaternion& q1, const QQuaternion& q2); + friend constexpr bool qFuzzyCompare(const QQuaternion &q1, const QQuaternion &q2) noexcept; #ifndef QT_NO_VECTOR4D - QVector4D toVector4D() const; + constexpr QVector4D toVector4D() const noexcept; #endif - operator QVariant() const; + QT7_ONLY(Q_GUI_EXPORT) operator QVariant() const; #ifndef QT_NO_VECTOR3D inline void getAxisAndAngle(QVector3D *axis, float *angle) const; - static QQuaternion fromAxisAndAngle(const QVector3D& axis, float angle); + QT7_ONLY(Q_GUI_EXPORT) static QQuaternion fromAxisAndAngle(const QVector3D &axis, float angle); #endif - void getAxisAndAngle(float *x, float *y, float *z, float *angle) const; - static QQuaternion fromAxisAndAngle - (float x, float y, float z, float angle); + QT7_ONLY(Q_GUI_EXPORT) void getAxisAndAngle(float *x, float *y, float *z, float *angle) const; + QT7_ONLY(Q_GUI_EXPORT) static QQuaternion fromAxisAndAngle(float x, float y, float z, + float angle); #ifndef QT_NO_VECTOR3D inline QVector3D toEulerAngles() const; - static inline QQuaternion fromEulerAngles(const QVector3D &eulerAngles); + QT7_ONLY(Q_GUI_EXPORT) static inline QQuaternion fromEulerAngles(const QVector3D &eulerAngles); #endif - void getEulerAngles(float *pitch, float *yaw, float *roll) const; - static QQuaternion fromEulerAngles(float pitch, float yaw, float roll); + QT7_ONLY(Q_GUI_EXPORT) void getEulerAngles(float *pitch, float *yaw, float *roll) const; + QT7_ONLY(Q_GUI_EXPORT) static QQuaternion fromEulerAngles(float pitch, float yaw, float roll); - QMatrix3x3 toRotationMatrix() const; - static QQuaternion fromRotationMatrix(const QMatrix3x3 &rot3x3); + QT7_ONLY(Q_GUI_EXPORT) QMatrix3x3 toRotationMatrix() const; + QT7_ONLY(Q_GUI_EXPORT) static QQuaternion fromRotationMatrix(const QMatrix3x3 &rot3x3); #ifndef QT_NO_VECTOR3D - void getAxes(QVector3D *xAxis, QVector3D *yAxis, QVector3D *zAxis) const; - static QQuaternion fromAxes(const QVector3D &xAxis, const QVector3D &yAxis, const QVector3D &zAxis); + QT7_ONLY(Q_GUI_EXPORT) void getAxes(QVector3D *xAxis, QVector3D *yAxis, QVector3D *zAxis) const; + QT7_ONLY(Q_GUI_EXPORT) static QQuaternion fromAxes(const QVector3D &xAxis, + const QVector3D &yAxis, + const QVector3D &zAxis); - static QQuaternion fromDirection(const QVector3D &direction, const QVector3D &up); + QT7_ONLY(Q_GUI_EXPORT) static QQuaternion fromDirection(const QVector3D &direction, + const QVector3D &up); - static QQuaternion rotationTo(const QVector3D &from, const QVector3D &to); + QT7_ONLY(Q_GUI_EXPORT) static QQuaternion rotationTo(const QVector3D &from, + const QVector3D &to); #endif - static QQuaternion slerp - (const QQuaternion& q1, const QQuaternion& q2, float t); - static QQuaternion nlerp - (const QQuaternion& q1, const QQuaternion& q2, float t); + QT7_ONLY(Q_GUI_EXPORT) static QQuaternion slerp(const QQuaternion &q1, const QQuaternion &q2, + float t); + QT7_ONLY(Q_GUI_EXPORT) static QQuaternion nlerp(const QQuaternion &q1, const QQuaternion &q2, + float t); private: float wp, xp, yp, zp; }; -Q_DECLARE_TYPEINFO(QQuaternion, Q_MOVABLE_TYPE); +Q_DECLARE_TYPEINFO(QQuaternion, Q_PRIMITIVE_TYPE); -inline QQuaternion::QQuaternion() : wp(1.0f), xp(0.0f), yp(0.0f), zp(0.0f) {} +constexpr QQuaternion::QQuaternion() noexcept : wp(1.0f), xp(0.0f), yp(0.0f), zp(0.0f) {} -inline QQuaternion::QQuaternion(float aScalar, float xpos, float ypos, float zpos) : wp(aScalar), xp(xpos), yp(ypos), zp(zpos) {} +constexpr QQuaternion::QQuaternion(float aScalar, float xpos, float ypos, float zpos) noexcept + : wp(aScalar), xp(xpos), yp(ypos), zp(zpos) {} QT_WARNING_PUSH QT_WARNING_DISABLE_FLOAT_COMPARE -inline bool QQuaternion::isNull() const +constexpr bool QQuaternion::isNull() const noexcept { return wp == 0.0f && xp == 0.0f && yp == 0.0f && zp == 0.0f; } -inline bool QQuaternion::isIdentity() const +constexpr bool QQuaternion::isIdentity() const noexcept { return wp == 1.0f && xp == 0.0f && yp == 0.0f && zp == 0.0f; } QT_WARNING_POP -inline float QQuaternion::x() const { return xp; } -inline float QQuaternion::y() const { return yp; } -inline float QQuaternion::z() const { return zp; } -inline float QQuaternion::scalar() const { return wp; } +constexpr float QQuaternion::x() const noexcept { return xp; } +constexpr float QQuaternion::y() const noexcept { return yp; } +constexpr float QQuaternion::z() const noexcept { return zp; } +constexpr float QQuaternion::scalar() const noexcept { return wp; } -inline void QQuaternion::setX(float aX) { xp = aX; } -inline void QQuaternion::setY(float aY) { yp = aY; } -inline void QQuaternion::setZ(float aZ) { zp = aZ; } -inline void QQuaternion::setScalar(float aScalar) { wp = aScalar; } +constexpr void QQuaternion::setX(float aX) noexcept { xp = aX; } +constexpr void QQuaternion::setY(float aY) noexcept { yp = aY; } +constexpr void QQuaternion::setZ(float aZ) noexcept { zp = aZ; } +constexpr void QQuaternion::setScalar(float aScalar) noexcept { wp = aScalar; } -constexpr inline float QQuaternion::dotProduct(const QQuaternion &q1, const QQuaternion &q2) +constexpr float QQuaternion::dotProduct(const QQuaternion &q1, const QQuaternion &q2) noexcept { return q1.wp * q2.wp + q1.xp * q2.xp + q1.yp * q2.yp + q1.zp * q2.zp; } -inline QQuaternion QQuaternion::inverted() const +constexpr QQuaternion QQuaternion::inverted() const noexcept { // Need some extra precision if the length is very small. double len = double(wp) * double(wp) + @@ -217,12 +188,12 @@ inline QQuaternion QQuaternion::inverted() const return QQuaternion(0.0f, 0.0f, 0.0f, 0.0f); } -inline QQuaternion QQuaternion::conjugated() const +constexpr QQuaternion QQuaternion::conjugated() const noexcept { return QQuaternion(wp, -xp, -yp, -zp); } -inline QQuaternion &QQuaternion::operator+=(const QQuaternion &quaternion) +constexpr QQuaternion &QQuaternion::operator+=(const QQuaternion &quaternion) noexcept { wp += quaternion.wp; xp += quaternion.xp; @@ -231,7 +202,7 @@ inline QQuaternion &QQuaternion::operator+=(const QQuaternion &quaternion) return *this; } -inline QQuaternion &QQuaternion::operator-=(const QQuaternion &quaternion) +constexpr QQuaternion &QQuaternion::operator-=(const QQuaternion &quaternion) noexcept { wp -= quaternion.wp; xp -= quaternion.xp; @@ -240,7 +211,7 @@ inline QQuaternion &QQuaternion::operator-=(const QQuaternion &quaternion) return *this; } -inline QQuaternion &QQuaternion::operator*=(float factor) +constexpr QQuaternion &QQuaternion::operator*=(float factor) noexcept { wp *= factor; xp *= factor; @@ -249,7 +220,7 @@ inline QQuaternion &QQuaternion::operator*=(float factor) return *this; } -inline const QQuaternion operator*(const QQuaternion &q1, const QQuaternion& q2) +constexpr QQuaternion operator*(const QQuaternion &q1, const QQuaternion &q2) noexcept { float yy = (q1.wp - q1.yp) * (q2.wp + q2.zp); float zz = (q1.wp + q1.yp) * (q2.wp - q2.zp); @@ -265,13 +236,13 @@ inline const QQuaternion operator*(const QQuaternion &q1, const QQuaternion& q2) return QQuaternion(w, x, y, z); } -inline QQuaternion &QQuaternion::operator*=(const QQuaternion &quaternion) +constexpr QQuaternion &QQuaternion::operator*=(const QQuaternion &quaternion) noexcept { *this = *this * quaternion; return *this; } -inline QQuaternion &QQuaternion::operator/=(float divisor) +constexpr QQuaternion &QQuaternion::operator/=(float divisor) { wp /= divisor; xp /= divisor; @@ -280,37 +251,37 @@ inline QQuaternion &QQuaternion::operator/=(float divisor) return *this; } -inline const QQuaternion operator+(const QQuaternion &q1, const QQuaternion &q2) +constexpr QQuaternion operator+(const QQuaternion &q1, const QQuaternion &q2) noexcept { return QQuaternion(q1.wp + q2.wp, q1.xp + q2.xp, q1.yp + q2.yp, q1.zp + q2.zp); } -inline const QQuaternion operator-(const QQuaternion &q1, const QQuaternion &q2) +constexpr QQuaternion operator-(const QQuaternion &q1, const QQuaternion &q2) noexcept { return QQuaternion(q1.wp - q2.wp, q1.xp - q2.xp, q1.yp - q2.yp, q1.zp - q2.zp); } -inline const QQuaternion operator*(float factor, const QQuaternion &quaternion) +constexpr QQuaternion operator*(float factor, const QQuaternion &quaternion) noexcept { return QQuaternion(quaternion.wp * factor, quaternion.xp * factor, quaternion.yp * factor, quaternion.zp * factor); } -inline const QQuaternion operator*(const QQuaternion &quaternion, float factor) +constexpr QQuaternion operator*(const QQuaternion &quaternion, float factor) noexcept { return QQuaternion(quaternion.wp * factor, quaternion.xp * factor, quaternion.yp * factor, quaternion.zp * factor); } -inline const QQuaternion operator-(const QQuaternion &quaternion) +constexpr QQuaternion operator-(const QQuaternion &quaternion) noexcept { return QQuaternion(-quaternion.wp, -quaternion.xp, -quaternion.yp, -quaternion.zp); } -inline const QQuaternion operator/(const QQuaternion &quaternion, float divisor) +constexpr QQuaternion operator/(const QQuaternion &quaternion, float divisor) { return QQuaternion(quaternion.wp / divisor, quaternion.xp / divisor, quaternion.yp / divisor, quaternion.zp / divisor); } -inline bool qFuzzyCompare(const QQuaternion& q1, const QQuaternion& q2) +constexpr bool qFuzzyCompare(const QQuaternion &q1, const QQuaternion &q2) noexcept { return qFuzzyCompare(q1.wp, q2.wp) && qFuzzyCompare(q1.xp, q2.xp) && @@ -320,17 +291,17 @@ inline bool qFuzzyCompare(const QQuaternion& q1, const QQuaternion& q2) #ifndef QT_NO_VECTOR3D -inline QQuaternion::QQuaternion(float aScalar, const QVector3D& aVector) +constexpr QQuaternion::QQuaternion(float aScalar, const QVector3D &aVector) noexcept : wp(aScalar), xp(aVector.x()), yp(aVector.y()), zp(aVector.z()) {} -inline void QQuaternion::setVector(const QVector3D& aVector) +constexpr void QQuaternion::setVector(const QVector3D &aVector) noexcept { xp = aVector.x(); yp = aVector.y(); zp = aVector.z(); } -inline QVector3D QQuaternion::vector() const +constexpr QVector3D QQuaternion::vector() const noexcept { return QVector3D(xp, yp, zp); } @@ -361,7 +332,7 @@ inline QQuaternion QQuaternion::fromEulerAngles(const QVector3D &eulerAngles) #endif -inline void QQuaternion::setVector(float aX, float aY, float aZ) +constexpr void QQuaternion::setVector(float aX, float aY, float aZ) noexcept { xp = aX; yp = aY; @@ -370,10 +341,10 @@ inline void QQuaternion::setVector(float aX, float aY, float aZ) #ifndef QT_NO_VECTOR4D -inline QQuaternion::QQuaternion(const QVector4D& aVector) +constexpr QQuaternion::QQuaternion(const QVector4D &aVector) noexcept : wp(aVector.w()), xp(aVector.x()), yp(aVector.y()), zp(aVector.z()) {} -inline QVector4D QQuaternion::toVector4D() const +constexpr QVector4D QQuaternion::toVector4D() const noexcept { return QVector4D(xp, yp, zp, wp); } |