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Diffstat (limited to 'src/opengl/qwindowsurface_gl.cpp')
-rw-r--r--src/opengl/qwindowsurface_gl.cpp13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/opengl/qwindowsurface_gl.cpp b/src/opengl/qwindowsurface_gl.cpp
index 7dc7dc7..b8716ce 100644
--- a/src/opengl/qwindowsurface_gl.cpp
+++ b/src/opengl/qwindowsurface_gl.cpp
@@ -284,6 +284,7 @@ struct QGLWindowSurfacePrivate
};
QGLFormat QGLWindowSurface::surfaceFormat;
+QGLWindowSurface::SwapMode QGLWindowSurface::swapBehavior = QGLWindowSurface::AutomaticSwap;
void QGLWindowSurfaceGLPaintDevice::endPaint()
{
@@ -541,6 +542,9 @@ void QGLWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoint &
const GLenum target = GL_TEXTURE_2D;
Q_UNUSED(target);
+ if (QGLWindowSurface::swapBehavior == QGLWindowSurface::KillSwap)
+ return;
+
if (context()) {
context()->makeCurrent();
@@ -588,7 +592,14 @@ void QGLWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoint &
}
}
#endif
- bool doingPartialUpdate = hasPartialUpdateSupport() && br.width() * br.height() < parent->geometry().width() * parent->geometry().height() * 0.2;
+ bool doingPartialUpdate = false;
+ if (QGLWindowSurface::swapBehavior == QGLWindowSurface::AutomaticSwap)
+ doingPartialUpdate = hasPartialUpdateSupport() && br.width() * br.height() < parent->geometry().width() * parent->geometry().height() * 0.2;
+ else if (QGLWindowSurface::swapBehavior == QGLWindowSurface::AlwaysFullSwap)
+ doingPartialUpdate = false;
+ else if (QGLWindowSurface::swapBehavior == QGLWindowSurface::AlwaysPartialSwap)
+ doingPartialUpdate = hasPartialUpdateSupport();
+
QGLContext *ctx = reinterpret_cast<QGLContext *>(parent->d_func()->extraData()->glContext);
if (widget != window()) {
if (initializeOffscreenTexture(window()->size()))