diff options
Diffstat (limited to 'src/opengl/qwindowsurface_gl.cpp')
| -rw-r--r-- | src/opengl/qwindowsurface_gl.cpp | 5 |
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(); |