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-/****************************************************************************
-**
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial Usage
-** Licensees holding valid Qt Commercial licenses may use this file in
-** accordance with the Qt Commercial License Agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Nokia.
-**
-** 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 1.1, 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 have questions regarding the use of this file, please contact
-** Nokia at qt-info@nokia.com.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QMATH_H
-#define QMATH_H
-
-#include <math.h>
-
-#include <QtCore/qglobal.h>
-
-#ifdef Q_OS_SYMBIAN
-# include <e32math.h>
-#endif
-
-QT_BEGIN_HEADER
-
-QT_BEGIN_NAMESPACE
-
-QT_MODULE(Core)
-
-#define QT_SINE_TABLE_SIZE 256
-
-extern Q_CORE_EXPORT const qreal qt_sine_table[QT_SINE_TABLE_SIZE];
-
-inline int qCeil(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return int(ceilf(float(v)));
- else
-#endif
- return int(ceil(v));
-}
-
-inline int qFloor(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return int(floorf(float(v)));
- else
-#endif
- return int(floor(v));
-}
-
-inline qreal qFabs(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
- if(sizeof(qreal) == sizeof(float))
- return fabsf(float(v));
- else
-#endif
- return fabs(v);
-}
-
-inline qreal qSin(qreal v)
-{
-#ifdef Q_OS_SYMBIAN
- TReal sin_v;
- Math::Sin(sin_v, static_cast<TReal>(v));
- return static_cast<qreal>(sin_v);
-#else
-# ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return sinf(float(v));
- else
-# endif
- return sin(v);
-#endif
-}
-
-inline qreal qCos(qreal v)
-{
-#ifdef Q_OS_SYMBIAN
- TReal cos_v;
- Math::Cos(cos_v, static_cast<TReal>(v));
- return static_cast<qreal>(cos_v);
-#else
-# ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return cosf(float(v));
- else
-# endif
- return cos(v);
-#endif
-}
-
-inline qreal qTan(qreal v)
-{
-#ifdef Q_OS_SYMBIAN
- TReal tan_v;
- Math::Tan(tan_v, static_cast<TReal>(v));
- return static_cast<qreal>(tan_v);
-#else
-# ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return tanf(float(v));
- else
-# endif
- return tan(v);
-#endif
-}
-
-inline qreal qAcos(qreal v)
-{
-#ifdef Q_OS_SYMBIAN
- TReal acos_v;
- Math::ACos(acos_v, static_cast<TReal>(v));
- return static_cast<qreal>(acos_v);
-#else
-# ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return acosf(float(v));
- else
-# endif
- return acos(v);
-#endif
-}
-
-inline qreal qAsin(qreal v)
-{
-#ifdef Q_OS_SYMBIAN
- TReal asin_v;
- Math::ASin(asin_v, static_cast<TReal>(v));
- return static_cast<qreal>(asin_v);
-#else
-# ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return asinf(float(v));
- else
-# endif
- return asin(v);
-#endif
-}
-
-inline qreal qAtan(qreal v)
-{
-#ifdef Q_OS_SYMBIAN
- TReal atan_v;
- Math::ATan(atan_v, static_cast<TReal>(v));
- return static_cast<qreal>(atan_v);
-#else
-# ifdef QT_USE_MATH_H_FLOATS
- if(sizeof(qreal) == sizeof(float))
- return atanf(float(v));
- else
-# endif
- return atan(v);
-#endif
-}
-
-inline qreal qAtan2(qreal x, qreal y)
-{
-#ifdef Q_OS_SYMBIAN
- TReal atan2_v;
- Math::ATan(atan2_v, static_cast<TReal>(x), static_cast<TReal>(y));
- return static_cast<qreal>(atan2_v);
-#else
-# ifdef QT_USE_MATH_H_FLOATS
- if(sizeof(qreal) == sizeof(float))
- return atan2f(float(x), float(y));
- else
-# endif
- return atan2(x, y);
-#endif
-}
-
-inline qreal qSqrt(qreal v)
-{
-#ifdef Q_OS_SYMBIAN
- TReal sqrt_v;
- Math::Sqrt(sqrt_v, static_cast<TReal>(v));
- return static_cast<qreal>(sqrt_v);
-#else
-# ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return sqrtf(float(v));
- else
-# endif
- return sqrt(v);
-#endif
-}
-
-inline qreal qLn(qreal v)
-{
-#ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return logf(float(v));
- else
-#endif
- return log(v);
-}
-
-inline qreal qExp(qreal v)
-{
-#ifdef Q_OS_SYMBIAN
- TReal exp_v;
- Math::Exp(exp_v, static_cast<TReal>(v));
- return static_cast<qreal>(exp_v);
-#else
- // only one signature
- // exists, exp(double)
- return exp(v);
-#endif
-}
-
-inline qreal qPow(qreal x, qreal y)
-{
-#ifdef Q_OS_SYMBIAN
- TReal pow_v;
- Math::Pow(pow_v, static_cast<TReal>(x), static_cast<TReal>(y));
- return static_cast<qreal>(pow_v);
-#else
-# ifdef QT_USE_MATH_H_FLOATS
- if (sizeof(qreal) == sizeof(float))
- return powf(float(x), float(y));
- else
-# endif
- return pow(x, y);
-#endif
-}
-
-#ifndef M_PI
-#define M_PI (3.14159265358979323846)
-#endif
-
-inline qreal qFastSin(qreal x)
-{
- int si = int(x * (0.5 * QT_SINE_TABLE_SIZE / M_PI)); // Would be more accurate with qRound, but slower.
- qreal d = x - si * (2.0 * M_PI / QT_SINE_TABLE_SIZE);
- int ci = si + QT_SINE_TABLE_SIZE / 4;
- si &= QT_SINE_TABLE_SIZE - 1;
- ci &= QT_SINE_TABLE_SIZE - 1;
- return qt_sine_table[si] + (qt_sine_table[ci] - 0.5 * qt_sine_table[si] * d) * d;
-}
-
-inline qreal qFastCos(qreal x)
-{
- int ci = int(x * (0.5 * QT_SINE_TABLE_SIZE / M_PI)); // Would be more accurate with qRound, but slower.
- qreal d = x - ci * (2.0 * M_PI / QT_SINE_TABLE_SIZE);
- int si = ci + QT_SINE_TABLE_SIZE / 4;
- si &= QT_SINE_TABLE_SIZE - 1;
- ci &= QT_SINE_TABLE_SIZE - 1;
- return qt_sine_table[si] - (qt_sine_table[ci] + 0.5 * qt_sine_table[si] * d) * d;
-}
-
-QT_END_NAMESPACE
-
-QT_END_HEADER
-
-#endif // QMATH_H
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