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-/****************************************************************************
-**
-** 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.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qmath3dutil_p.h"
-
-QT_BEGIN_NAMESPACE
-
-#ifdef QT_GL_FIXED_PREFERRED
-
-// The table that follows was automatically generated by the following code:
-//
-//#include <math.h>
-//#include <stdio.h>
-//
-//int main()
-//{
-// double angle;
-// int count = 0;
-// for (angle = 0.0; angle < 360.0; angle += 1.0) {
-// if ((count % 4) == 0)
-// printf(" ");
-// printf(" qf2vt(%f)", sin(angle * M_PI / 180.0));
-// ++count;
-// if (count != 360)
-// printf(",");
-// if ((count % 4) == 0)
-// printf("\n");
-// }
-// return 0;
-//}
-
-#define qf2vt(x) (int((x) * 65536.0))
-
-static int const sinTable[360] = {
- qf2vt(0.000000), qf2vt(0.017452), qf2vt(0.034899), qf2vt(0.052336),
- qf2vt(0.069756), qf2vt(0.087156), qf2vt(0.104528), qf2vt(0.121869),
- qf2vt(0.139173), qf2vt(0.156434), qf2vt(0.173648), qf2vt(0.190809),
- qf2vt(0.207912), qf2vt(0.224951), qf2vt(0.241922), qf2vt(0.258819),
- qf2vt(0.275637), qf2vt(0.292372), qf2vt(0.309017), qf2vt(0.325568),
- qf2vt(0.342020), qf2vt(0.358368), qf2vt(0.374607), qf2vt(0.390731),
- qf2vt(0.406737), qf2vt(0.422618), qf2vt(0.438371), qf2vt(0.453990),
- qf2vt(0.469472), qf2vt(0.484810), qf2vt(0.500000), qf2vt(0.515038),
- qf2vt(0.529919), qf2vt(0.544639), qf2vt(0.559193), qf2vt(0.573576),
- qf2vt(0.587785), qf2vt(0.601815), qf2vt(0.615661), qf2vt(0.629320),
- qf2vt(0.642788), qf2vt(0.656059), qf2vt(0.669131), qf2vt(0.681998),
- qf2vt(0.694658), qf2vt(0.707107), qf2vt(0.719340), qf2vt(0.731354),
- qf2vt(0.743145), qf2vt(0.754710), qf2vt(0.766044), qf2vt(0.777146),
- qf2vt(0.788011), qf2vt(0.798636), qf2vt(0.809017), qf2vt(0.819152),
- qf2vt(0.829038), qf2vt(0.838671), qf2vt(0.848048), qf2vt(0.857167),
- qf2vt(0.866025), qf2vt(0.874620), qf2vt(0.882948), qf2vt(0.891007),
- qf2vt(0.898794), qf2vt(0.906308), qf2vt(0.913545), qf2vt(0.920505),
- qf2vt(0.927184), qf2vt(0.933580), qf2vt(0.939693), qf2vt(0.945519),
- qf2vt(0.951057), qf2vt(0.956305), qf2vt(0.961262), qf2vt(0.965926),
- qf2vt(0.970296), qf2vt(0.974370), qf2vt(0.978148), qf2vt(0.981627),
- qf2vt(0.984808), qf2vt(0.987688), qf2vt(0.990268), qf2vt(0.992546),
- qf2vt(0.994522), qf2vt(0.996195), qf2vt(0.997564), qf2vt(0.998630),
- qf2vt(0.999391), qf2vt(0.999848), qf2vt(1.000000), qf2vt(0.999848),
- qf2vt(0.999391), qf2vt(0.998630), qf2vt(0.997564), qf2vt(0.996195),
- qf2vt(0.994522), qf2vt(0.992546), qf2vt(0.990268), qf2vt(0.987688),
- qf2vt(0.984808), qf2vt(0.981627), qf2vt(0.978148), qf2vt(0.974370),
- qf2vt(0.970296), qf2vt(0.965926), qf2vt(0.961262), qf2vt(0.956305),
- qf2vt(0.951057), qf2vt(0.945519), qf2vt(0.939693), qf2vt(0.933580),
- qf2vt(0.927184), qf2vt(0.920505), qf2vt(0.913545), qf2vt(0.906308),
- qf2vt(0.898794), qf2vt(0.891007), qf2vt(0.882948), qf2vt(0.874620),
- qf2vt(0.866025), qf2vt(0.857167), qf2vt(0.848048), qf2vt(0.838671),
- qf2vt(0.829038), qf2vt(0.819152), qf2vt(0.809017), qf2vt(0.798636),
- qf2vt(0.788011), qf2vt(0.777146), qf2vt(0.766044), qf2vt(0.754710),
- qf2vt(0.743145), qf2vt(0.731354), qf2vt(0.719340), qf2vt(0.707107),
- qf2vt(0.694658), qf2vt(0.681998), qf2vt(0.669131), qf2vt(0.656059),
- qf2vt(0.642788), qf2vt(0.629320), qf2vt(0.615661), qf2vt(0.601815),
- qf2vt(0.587785), qf2vt(0.573576), qf2vt(0.559193), qf2vt(0.544639),
- qf2vt(0.529919), qf2vt(0.515038), qf2vt(0.500000), qf2vt(0.484810),
- qf2vt(0.469472), qf2vt(0.453990), qf2vt(0.438371), qf2vt(0.422618),
- qf2vt(0.406737), qf2vt(0.390731), qf2vt(0.374607), qf2vt(0.358368),
- qf2vt(0.342020), qf2vt(0.325568), qf2vt(0.309017), qf2vt(0.292372),
- qf2vt(0.275637), qf2vt(0.258819), qf2vt(0.241922), qf2vt(0.224951),
- qf2vt(0.207912), qf2vt(0.190809), qf2vt(0.173648), qf2vt(0.156434),
- qf2vt(0.139173), qf2vt(0.121869), qf2vt(0.104528), qf2vt(0.087156),
- qf2vt(0.069756), qf2vt(0.052336), qf2vt(0.034899), qf2vt(0.017452),
- qf2vt(0.000000), qf2vt(-0.017452), qf2vt(-0.034899), qf2vt(-0.052336),
- qf2vt(-0.069756), qf2vt(-0.087156), qf2vt(-0.104528), qf2vt(-0.121869),
- qf2vt(-0.139173), qf2vt(-0.156434), qf2vt(-0.173648), qf2vt(-0.190809),
- qf2vt(-0.207912), qf2vt(-0.224951), qf2vt(-0.241922), qf2vt(-0.258819),
- qf2vt(-0.275637), qf2vt(-0.292372), qf2vt(-0.309017), qf2vt(-0.325568),
- qf2vt(-0.342020), qf2vt(-0.358368), qf2vt(-0.374607), qf2vt(-0.390731),
- qf2vt(-0.406737), qf2vt(-0.422618), qf2vt(-0.438371), qf2vt(-0.453990),
- qf2vt(-0.469472), qf2vt(-0.484810), qf2vt(-0.500000), qf2vt(-0.515038),
- qf2vt(-0.529919), qf2vt(-0.544639), qf2vt(-0.559193), qf2vt(-0.573576),
- qf2vt(-0.587785), qf2vt(-0.601815), qf2vt(-0.615661), qf2vt(-0.629320),
- qf2vt(-0.642788), qf2vt(-0.656059), qf2vt(-0.669131), qf2vt(-0.681998),
- qf2vt(-0.694658), qf2vt(-0.707107), qf2vt(-0.719340), qf2vt(-0.731354),
- qf2vt(-0.743145), qf2vt(-0.754710), qf2vt(-0.766044), qf2vt(-0.777146),
- qf2vt(-0.788011), qf2vt(-0.798636), qf2vt(-0.809017), qf2vt(-0.819152),
- qf2vt(-0.829038), qf2vt(-0.838671), qf2vt(-0.848048), qf2vt(-0.857167),
- qf2vt(-0.866025), qf2vt(-0.874620), qf2vt(-0.882948), qf2vt(-0.891007),
- qf2vt(-0.898794), qf2vt(-0.906308), qf2vt(-0.913545), qf2vt(-0.920505),
- qf2vt(-0.927184), qf2vt(-0.933580), qf2vt(-0.939693), qf2vt(-0.945519),
- qf2vt(-0.951057), qf2vt(-0.956305), qf2vt(-0.961262), qf2vt(-0.965926),
- qf2vt(-0.970296), qf2vt(-0.974370), qf2vt(-0.978148), qf2vt(-0.981627),
- qf2vt(-0.984808), qf2vt(-0.987688), qf2vt(-0.990268), qf2vt(-0.992546),
- qf2vt(-0.994522), qf2vt(-0.996195), qf2vt(-0.997564), qf2vt(-0.998630),
- qf2vt(-0.999391), qf2vt(-0.999848), qf2vt(-1.000000), qf2vt(-0.999848),
- qf2vt(-0.999391), qf2vt(-0.998630), qf2vt(-0.997564), qf2vt(-0.996195),
- qf2vt(-0.994522), qf2vt(-0.992546), qf2vt(-0.990268), qf2vt(-0.987688),
- qf2vt(-0.984808), qf2vt(-0.981627), qf2vt(-0.978148), qf2vt(-0.974370),
- qf2vt(-0.970296), qf2vt(-0.965926), qf2vt(-0.961262), qf2vt(-0.956305),
- qf2vt(-0.951057), qf2vt(-0.945519), qf2vt(-0.939693), qf2vt(-0.933580),
- qf2vt(-0.927184), qf2vt(-0.920505), qf2vt(-0.913545), qf2vt(-0.906308),
- qf2vt(-0.898794), qf2vt(-0.891007), qf2vt(-0.882948), qf2vt(-0.874620),
- qf2vt(-0.866025), qf2vt(-0.857167), qf2vt(-0.848048), qf2vt(-0.838671),
- qf2vt(-0.829038), qf2vt(-0.819152), qf2vt(-0.809017), qf2vt(-0.798636),
- qf2vt(-0.788011), qf2vt(-0.777146), qf2vt(-0.766044), qf2vt(-0.754710),
- qf2vt(-0.743145), qf2vt(-0.731354), qf2vt(-0.719340), qf2vt(-0.707107),
- qf2vt(-0.694658), qf2vt(-0.681998), qf2vt(-0.669131), qf2vt(-0.656059),
- qf2vt(-0.642788), qf2vt(-0.629320), qf2vt(-0.615661), qf2vt(-0.601815),
- qf2vt(-0.587785), qf2vt(-0.573576), qf2vt(-0.559193), qf2vt(-0.544639),
- qf2vt(-0.529919), qf2vt(-0.515038), qf2vt(-0.500000), qf2vt(-0.484810),
- qf2vt(-0.469472), qf2vt(-0.453990), qf2vt(-0.438371), qf2vt(-0.422618),
- qf2vt(-0.406737), qf2vt(-0.390731), qf2vt(-0.374607), qf2vt(-0.358368),
- qf2vt(-0.342020), qf2vt(-0.325568), qf2vt(-0.309017), qf2vt(-0.292372),
- qf2vt(-0.275637), qf2vt(-0.258819), qf2vt(-0.241922), qf2vt(-0.224951),
- qf2vt(-0.207912), qf2vt(-0.190809), qf2vt(-0.173648), qf2vt(-0.156434),
- qf2vt(-0.139173), qf2vt(-0.121869), qf2vt(-0.104528), qf2vt(-0.087156),
- qf2vt(-0.069756), qf2vt(-0.052336), qf2vt(-0.034899), qf2vt(-0.017452)
-};
-
-void qt_math3d_sincos(qreal angle, qrealinner *s, qrealinner *c)
-{
- if (angle == qFloor(angle)) {
- // The angle is an integer number of degrees, so look up the results.
- int a = (int)angle;
- if (a >= 0)
- a = (a % 360);
- else
- a = 360 - (-a % 360);
- s->setBits(sinTable[a]);
- c->setBits(sinTable[(a + 90) % 360]);
- } else {
- qreal a = angle * M_PI / 180.0f;
- *s = qSin(a);
- *c = qCos(a);
- }
-}
-
-#else
-
-void qt_math3d_sincos(qreal angle, qrealinner *s, qrealinner *c)
-{
- qreal a = angle * M_PI / 180.0f;
- *s = qSin(a);
- *c = qCos(a);
-}
-
-#endif
-
-QT_END_NAMESPACE
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