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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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