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Diffstat (limited to 'src/gui/math3d/qfixedpt.h')
| -rw-r--r-- | src/gui/math3d/qfixedpt.h | 551 |
1 files changed, 0 insertions, 551 deletions
diff --git a/src/gui/math3d/qfixedpt.h b/src/gui/math3d/qfixedpt.h deleted file mode 100644 index 142f62f..0000000 --- a/src/gui/math3d/qfixedpt.h +++ /dev/null @@ -1,551 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Qt Software Information (qt-info@nokia.com) -** -** This file is part of the $MODULE$ of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain -** additional rights. These rights are described in the Nokia Qt LGPL -** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this -** package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** If you are unsure which license is appropriate for your use, please -** contact the sales department at qt-sales@nokia.com. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QFIXEDPT_H -#define QFIXEDPT_H - -#include <QtCore/qglobal.h> -#include <QtCore/qdebug.h> - -QT_BEGIN_HEADER - -QT_BEGIN_NAMESPACE - -QT_MODULE(Gui) - -Q_GUI_EXPORT qint64 qt_math3d_fixed_sqrt(qint64 value); - -// Should be called QFixed or QFixedPoint, but both of those -// are already in use in src/gui/painting/qfixed_p.h. -template <int PrecBits> -class QFixedPt -{ -public: - inline QFixedPt() {} // Deliberately not initialized - don't change this. - inline QFixedPt(int value) : val(value << PrecBits) {} - inline QFixedPt(qreal value) : val(int(value * (1 << PrecBits))) {} - - inline QFixedPt<PrecBits>& operator=(int value) - { val = value << PrecBits; return *this; } - inline QFixedPt<PrecBits>& operator=(qreal value) - { val = int(value * (1 << PrecBits)); return *this; } - - inline int bits() const { return val; } - inline void setBits(int value) { val = value; } - -#if !defined(QT_NO_MEMBER_TEMPLATES) || defined(Q_QDOC) - template <int Prec> - inline QFixedPt<Prec> toPrecision() const - { - QFixedPt<Prec> result; - if (Prec < PrecBits) - result.setBits(shiftRight(val, (PrecBits - Prec))); - else - result.setBits(shiftLeft(val, (Prec - PrecBits))); - return result; - } -#endif - - inline QFixedPt<PrecBits>& operator+=(const QFixedPt<PrecBits>& value) - { val += value.val; return *this; } - inline QFixedPt<PrecBits>& operator+=(int value) - { val += (value << PrecBits); return *this; } - inline QFixedPt<PrecBits>& operator+=(qreal value) - { val += int(value * (1 << PrecBits)); return *this; } - - inline QFixedPt<PrecBits>& operator-=(const QFixedPt<PrecBits>& value) - { val -= value.val; return *this; } - inline QFixedPt<PrecBits>& operator-=(int value) - { val -= (value << PrecBits); return *this; } - inline QFixedPt<PrecBits>& operator-=(qreal value) - { val -= int(value * (1 << PrecBits)); return *this; } - - inline QFixedPt<PrecBits>& operator*=(const QFixedPt<PrecBits>& value) - { val = mul(val, value.val); return *this; } - inline QFixedPt<PrecBits>& operator*=(int value) - { val = mul(val, (value << PrecBits)); return *this; } - inline QFixedPt<PrecBits>& operator*=(qreal value) - { val = mul(val, int(value * (1 << PrecBits))); return *this; } - - inline QFixedPt<PrecBits>& operator/=(const QFixedPt<PrecBits>& value) - { val = div(val, value.val); return *this; } - inline QFixedPt<PrecBits>& operator/=(int value) - { val = div(val, (value << PrecBits)); return *this; } - inline QFixedPt<PrecBits>& operator/=(qreal value) - { val = div(val, int(value * (1 << PrecBits))); return *this; } - - inline QFixedPt<PrecBits>& operator<<=(int value) - { val <<= value; return *this; } - inline QFixedPt<PrecBits>& operator>>=(int value) - { val >>= value; return *this; } - - inline QFixedPt<PrecBits> operator<<(int value) const - { QFixedPt<PrecBits> result; result.val = val << value; return result; } - inline QFixedPt<PrecBits> operator>>(int value) const - { QFixedPt<PrecBits> result; result.val = val >> value; return result; } - - inline bool operator==(const QFixedPt<PrecBits>& value) const - { return val == value.val; } - inline bool operator!=(const QFixedPt<PrecBits>& value) const - { return val != value.val; } - inline bool operator<=(const QFixedPt<PrecBits>& value) const - { return val <= value.val; } - inline bool operator<(const QFixedPt<PrecBits>& value) const - { return val < value.val; } - inline bool operator>=(const QFixedPt<PrecBits>& value) const - { return val >= value.val; } - inline bool operator>(const QFixedPt<PrecBits>& value) const - { return val > value.val; } - - inline QFixedPt<PrecBits> operator+(const QFixedPt<PrecBits>& value) const - { QFixedPt<PrecBits> result; - result.val = val + value.val; return result; } - inline QFixedPt<PrecBits> operator+(int value) const - { QFixedPt<PrecBits> result; - result.val = val + (value << PrecBits); return result; } - inline QFixedPt<PrecBits> operator+(qreal value) const - { QFixedPt<PrecBits> result; - result.val = val + int(value * (1 << PrecBits)); return result; } - - inline QFixedPt<PrecBits> operator-(const QFixedPt<PrecBits>& value) const - { QFixedPt<PrecBits> result; - result.val = val - value.val; return result; } - inline QFixedPt<PrecBits> operator-(int value) const - { QFixedPt<PrecBits> result; - result.val = val - (value << PrecBits); return result; } - inline QFixedPt<PrecBits> operator-(qreal value) const - { QFixedPt<PrecBits> result; - result.val = val - int(value * (1 << PrecBits)); return result; } - - inline QFixedPt<PrecBits> operator*(const QFixedPt<PrecBits>& value) const - { QFixedPt<PrecBits> result; - result.val = mul(val, value.val); return result; } - inline QFixedPt<PrecBits> operator*(int value) const - { QFixedPt<PrecBits> result; - result.val = mul(val, (value << PrecBits)); return result; } - inline QFixedPt<PrecBits> operator*(qreal value) const - { QFixedPt<PrecBits> result; - result.val = mul(val, int(value * (1 << PrecBits))); return result; } - - inline QFixedPt<PrecBits> operator/(const QFixedPt<PrecBits>& value) const - { QFixedPt<PrecBits> result; - result.val = div(val, value.val); return result; } - inline QFixedPt<PrecBits> operator/(int value) const - { QFixedPt<PrecBits> result; - result.val = div(val, (value << PrecBits)); return result; } - inline QFixedPt<PrecBits> operator/(qreal value) const - { QFixedPt<PrecBits> result; - result.val = div(val, int(value * (1 << PrecBits))); return result; } - - inline QFixedPt<PrecBits> operator-() const - { QFixedPt<PrecBits> result; result.val = -val; return result; } - - inline QFixedPt<PrecBits> sqrt() const; - inline qreal sqrtF() const; - inline QFixedPt<PrecBits> round() const; - inline QFixedPt<PrecBits> floor() const; - inline QFixedPt<PrecBits> ceil() const; - inline int truncate() const { return val >> PrecBits; } - - inline int toInt() const { return (val + (1 << (PrecBits - 1))) >> PrecBits; } - inline qreal toReal() const { return qreal(val) / qreal(1 << PrecBits); } - -#if !defined(Q_NO_TEMPLATE_FRIENDS) - template <int Prec> - friend QFixedPt<Prec> operator/(int v1, const QFixedPt<Prec>& v2); - template <int Prec> - friend QFixedPt<Prec> operator/(qreal v1, const QFixedPt<Prec>& v2); - -private: -#endif - int val; - - inline static int mul(int v1, int v2) - { - return int((qint64(v1) * qint64(v2)) >> PrecBits); - } - - inline static int div(int v1, int v2) - { - if (v2) - return int((qint64(v1) << PrecBits) / qint64(v2)); - else - return 0; - } - - // These are used by toPrecision() to avoid a silly gcc compiler warning - // related to negative shift values that will never actually be used. - inline static int shiftRight(int val, int shift) - { - return val >> shift; - } - inline static int shiftLeft(int val, int shift) - { - return val << shift; - } - -#if !defined(Q_NO_TEMPLATE_FRIENDS) - template <int Prec, int Prec2> - friend QFixedPt<Prec> qFixedPtToPrecision(const QFixedPt<Prec2>& value); -#endif -}; - -template <int PrecBits> -inline bool operator==(const QFixedPt<PrecBits>& v1, int v2) -{ - return v1.bits() == (v2 << PrecBits); -} - -template <int PrecBits> -inline bool operator==(int v1, const QFixedPt<PrecBits>& v2) -{ - return (v1 << PrecBits) == v2.bits(); -} - -template <int PrecBits> -inline bool operator==(const QFixedPt<PrecBits>& v1, qreal v2) -{ - return v1.bits() == int(v2 * (1 << PrecBits)); -} - -template <int PrecBits> -inline bool operator==(qreal v1, const QFixedPt<PrecBits>& v2) -{ - return int(v1 * (1 << PrecBits)) == v2.bits(); -} - -template <int PrecBits> -inline bool operator!=(const QFixedPt<PrecBits>& v1, int v2) -{ - return v1.bits() != (v2 << PrecBits); -} - -template <int PrecBits> -inline bool operator!=(int v1, const QFixedPt<PrecBits>& v2) -{ - return (v1 << PrecBits) != v2.bits(); -} - -template <int PrecBits> -inline bool operator!=(const QFixedPt<PrecBits>& v1, qreal v2) -{ - return v1.bits() != int(v2 * (1 << PrecBits)); -} - -template <int PrecBits> -inline bool operator!=(qreal v1, const QFixedPt<PrecBits>& v2) -{ - return int(v1 * (1 << PrecBits)) != v2.bits(); -} - -template <int PrecBits> -inline bool operator<=(const QFixedPt<PrecBits>& v1, int v2) -{ - return v1.bits() <= (v2 << PrecBits); -} - -template <int PrecBits> -inline bool operator<=(int v1, const QFixedPt<PrecBits>& v2) -{ - return (v1 << PrecBits) <= v2.bits(); -} - -template <int PrecBits> -inline bool operator<=(const QFixedPt<PrecBits>& v1, qreal v2) -{ - return v1.bits() <= int(v2 * (1 << PrecBits)); -} - -template <int PrecBits> -inline bool operator<=(qreal v1, const QFixedPt<PrecBits>& v2) -{ - return int(v1 * (1 << PrecBits)) <= v2.bits(); -} - -template <int PrecBits> -inline bool operator<(const QFixedPt<PrecBits>& v1, int v2) -{ - return v1.bits() < (v2 << PrecBits); -} - -template <int PrecBits> -inline bool operator<(int v1, const QFixedPt<PrecBits>& v2) -{ - return (v1 << PrecBits) < v2.bits(); -} - -template <int PrecBits> -inline bool operator<(const QFixedPt<PrecBits>& v1, qreal v2) -{ - return v1.bits() < int(v2 * (1 << PrecBits)); -} - -template <int PrecBits> -inline bool operator<(qreal v1, const QFixedPt<PrecBits>& v2) -{ - return int(v1 * (1 << PrecBits)) < v2.bits(); -} - -template <int PrecBits> -inline bool operator>=(const QFixedPt<PrecBits>& v1, int v2) -{ - return v1.bits() >= (v2 << PrecBits); -} - -template <int PrecBits> -inline bool operator>=(int v1, const QFixedPt<PrecBits>& v2) -{ - return (v1 << PrecBits) >= v2.bits(); -} - -template <int PrecBits> -inline bool operator>=(const QFixedPt<PrecBits>& v1, qreal v2) -{ - return v1.bits() >= int(v2 * (1 << PrecBits)); -} - -template <int PrecBits> -inline bool operator>=(qreal v1, const QFixedPt<PrecBits>& v2) -{ - return int(v1 * (1 << PrecBits)) >= v2.bits(); -} - -template <int PrecBits> -inline bool operator>(const QFixedPt<PrecBits>& v1, int v2) -{ - return v1.bits() > (v2 << PrecBits); -} - -template <int PrecBits> -inline bool operator>(int v1, const QFixedPt<PrecBits>& v2) -{ - return (v1 << PrecBits) > v2.bits(); -} - -template <int PrecBits> -inline bool operator>(const QFixedPt<PrecBits>& v1, qreal v2) -{ - return v1.bits() > int(v2 * (1 << PrecBits)); -} - -template <int PrecBits> -inline bool operator>(qreal v1, const QFixedPt<PrecBits>& v2) -{ - return int(v1 * (1 << PrecBits)) > v2.bits(); -} - -template <int PrecBits> -inline QFixedPt<PrecBits> operator+(int v1, const QFixedPt<PrecBits>& v2) -{ - return v2 + v1; -} - -template <int PrecBits> -inline QFixedPt<PrecBits> operator+(qreal v1, const QFixedPt<PrecBits>& v2) -{ - return v2 + v1; -} - -template <int PrecBits> -inline QFixedPt<PrecBits> operator-(int v1, const QFixedPt<PrecBits>& v2) -{ - return -(v2 - v1); -} - -template <int PrecBits> -inline QFixedPt<PrecBits> operator-(qreal v1, const QFixedPt<PrecBits>& v2) -{ - return -(v2 - v1); -} - -template <int PrecBits> -inline QFixedPt<PrecBits> operator*(int v1, const QFixedPt<PrecBits>& v2) -{ - return v2 * v1; -} - -template <int PrecBits> -inline QFixedPt<PrecBits> operator*(qreal v1, const QFixedPt<PrecBits>& v2) -{ - return v2 * v1; -} - -template <int PrecBits> -inline QFixedPt<PrecBits> operator/(int v1, const QFixedPt<PrecBits>& v2) -{ - QFixedPt<PrecBits> result; - result.val = QFixedPt<PrecBits>::div(v1 << PrecBits, v2.val); - return result; -} - -template <int PrecBits> -inline QFixedPt<PrecBits> operator/(qreal v1, const QFixedPt<PrecBits>& v2) -{ - QFixedPt<PrecBits> result; - result.val = QFixedPt<PrecBits>::div(int(v1 * (1 << PrecBits)), v2.val); - return result; -} - -template <int PrecBits> -inline QFixedPt<PrecBits> QFixedPt<PrecBits>::sqrt() const -{ - QFixedPt<PrecBits> result; - result.val = int(qt_math3d_fixed_sqrt - (qint64(val) << (PrecBits * 2)) >> (PrecBits / 2)); - return result; -} - -template <int PrecBits> -inline qreal QFixedPt<PrecBits>::sqrtF() const -{ - return qt_math3d_fixed_sqrt - (qint64(val) << (PrecBits * 2)) / (qreal)(1 << (PrecBits + (PrecBits / 2))); -} - -template <int PrecBits> -inline QFixedPt<PrecBits> QFixedPt<PrecBits>::round() const -{ - QFixedPt<PrecBits> result; - result.val = (val + (1 << (PrecBits - 1))) & ~((1 << PrecBits) - 1); - return result; -} - -template <int PrecBits> -inline QFixedPt<PrecBits> QFixedPt<PrecBits>::floor() const -{ - QFixedPt<PrecBits> result; - result.val = val & ~((1 << PrecBits) - 1); - return result; -} - -template <int PrecBits> -inline QFixedPt<PrecBits> QFixedPt<PrecBits>::ceil() const -{ - QFixedPt<PrecBits> result; - result.val = (val + (1 << PrecBits) - 1) & ~((1 << PrecBits) - 1); - return result; -} - -template <int PrecBits> -inline int qCeil(const QFixedPt<PrecBits>& value) -{ - return value.ceil().bits() >> PrecBits; -} - -template <int PrecBits> -inline int qFloor(const QFixedPt<PrecBits>& value) -{ - return value.floor().bits() >> PrecBits; -} - -template <int PrecBits> -inline int qRound(const QFixedPt<PrecBits>& value) -{ - return value.round().bits() >> PrecBits; -} - -template <int PrecBits> -inline bool qFuzzyCompare(const QFixedPt<PrecBits>& v1, const QFixedPt<PrecBits>& v2, int compareBits = (PrecBits / 4)) -{ - return ((v1.bits() ^ v2.bits()) & ~((1 << compareBits) - 1)) == 0; -} - -template <int PrecBits> -inline bool qIsNull(const QFixedPt<PrecBits>& v) -{ - return v.bits() == 0; -} - -template <int Prec, int PrecBits> -QFixedPt<Prec> qFixedPtToPrecision(const QFixedPt<PrecBits>& value) -{ - QFixedPt<Prec> result; - if (Prec < PrecBits) - result.setBits(QFixedPt<PrecBits>::shiftRight(value.bits(), (PrecBits - Prec))); - else - result.setBits(QFixedPt<PrecBits>::shiftLeft(value.bits(), (Prec - PrecBits))); - return result; -} - -template <int PrecBits> -inline QDebug &operator<<(QDebug &dbg, const QFixedPt<PrecBits> &f) -{ - return dbg << f.toReal(); -} - -Q_DECLARE_TYPEINFO(QFixedPt<0>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<1>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<2>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<3>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<4>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<5>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<6>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<7>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<8>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<9>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<10>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<11>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<12>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<13>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<14>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<15>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<16>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<17>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<18>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<19>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<20>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<21>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<22>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<23>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<24>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<25>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<26>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<27>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<28>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<29>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<30>, Q_PRIMITIVE_TYPE); -Q_DECLARE_TYPEINFO(QFixedPt<31>, Q_PRIMITIVE_TYPE); - -QT_END_NAMESPACE - -QT_END_HEADER - -#endif |