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authorMichael Dominic K <mdk@codethink.co.uk>2010-10-05 14:54:20 (GMT)
committerSamuel Rødal <samuel.rodal@nokia.com>2010-10-05 14:54:20 (GMT)
commit7bf2de5adf62f45c8d7fcba22e2cf9ea427b5b37 (patch)
treeb8bc11591310092076d282fe379304b17c49c9df /src
parentfaba550d704312a29d9485bcaaa506331f102301 (diff)
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Adding a threshold for partial updates.
Merge-request: 841 Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
Diffstat (limited to 'src')
-rw-r--r--src/opengl/qwindowsurface_gl.cpp5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/opengl/qwindowsurface_gl.cpp b/src/opengl/qwindowsurface_gl.cpp
index f98dcff..8157b2a 100644
--- a/src/opengl/qwindowsurface_gl.cpp
+++ b/src/opengl/qwindowsurface_gl.cpp
@@ -534,8 +534,9 @@ void QGLWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoint &
}
}
#endif
- if (d_ptr->paintedRegion.boundingRect() != geometry() &&
- hasPartialUpdateSupport()) {
+ if (hasPartialUpdateSupport() &&
+ d_ptr->paintedRegion.boundingRect().width() * d_ptr->paintedRegion.boundingRect().height() <
+ geometry().width() * geometry().height() * 0.2) {
context()->d_func()->swapRegion(&d_ptr->paintedRegion);
} else
context()->swapBuffers();