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| author | Rhys Weatherley <rhys.weatherley@nokia.com> | 2009-04-07 06:16:22 (GMT) |
|---|---|---|
| committer | Rhys Weatherley <rhys.weatherley@nokia.com> | 2009-04-08 00:19:12 (GMT) |
| commit | a83faaf1bedfd321c4fc759156369d2f86fbbbed (patch) | |
| tree | 9fefa2840ae8a784fcd323551de6a74835e5b267 /src/gui/math3d/qvector2d.cpp | |
| parent | 939623b2bc8e441618ee1a1886cc656880bee62b (diff) | |
| download | Qt-a83faaf1bedfd321c4fc759156369d2f86fbbbed.zip Qt-a83faaf1bedfd321c4fc759156369d2f86fbbbed.tar.gz Qt-a83faaf1bedfd321c4fc759156369d2f86fbbbed.tar.bz2 | |
Remove fixed-point support from math3d
The main use case for fixed-point support is to build large
arrays of vertices. This can be handled using qvertextype or
something similar at higher levels. So it isn't worth risking
numerical instability in the core classes.
Reviewed-by: trustme
Diffstat (limited to 'src/gui/math3d/qvector2d.cpp')
| -rw-r--r-- | src/gui/math3d/qvector2d.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/gui/math3d/qvector2d.cpp b/src/gui/math3d/qvector2d.cpp index 0426fc5..31e5be6 100644 --- a/src/gui/math3d/qvector2d.cpp +++ b/src/gui/math3d/qvector2d.cpp @@ -42,7 +42,8 @@ #include "qvector2d.h" #include "qvector3d.h" #include "qvector4d.h" -#include "qmath3dutil_p.h" +#include <QtCore/qdebug.h> +#include <QtCore/qmath.h> QT_BEGIN_NAMESPACE @@ -169,7 +170,7 @@ QVector2D::QVector2D(const QVector4D& vector) */ qreal QVector2D::length() const { - return qvtsqrt64(qvtmul64(xp, xp) + qvtmul64(yp, yp)); + return qSqrt(xp * xp + yp * yp); } /*! @@ -180,7 +181,7 @@ qreal QVector2D::length() const */ qreal QVector2D::lengthSquared() const { - return qvtdot64(qvtmul64(xp, xp) + qvtmul64(yp, yp)); + return xp * xp + yp * yp; } /*! @@ -263,7 +264,7 @@ void QVector2D::normalize() */ qreal QVector2D::dotProduct(const QVector2D& v1, const QVector2D& v2) { - return qvtdot64(qvtmul64(v1.xp, v2.xp) + qvtmul64(v1.yp, v2.yp)); + return v1.xp * v2.xp + v1.yp * v2.yp; } /*! |