Added support for blitting to native child widgets in GL window surface.

Support blitting by copying from the top-level window's back buffer to
a temporary texture and then blitting from the texture to the native
child widget. Performance suffers, but it's better than failing.

Reviewed-by: Gunnar Sletta

1 files changed, 1 insertions, 0 deletions

diff --git a/src/opengl/qwindowsurface_gl_p.h b/src/opengl/qwindowsurface_gl_p.h
index ffc2e86..6906f35 100644
--- a/src/opengl/qwindowsurface_gl_p.h
+++ b/src/opengl/qwindowsurface_gl_p.h
@@ -107,6 +107,7 @@ private slots:
 
 private:
     void hijackWindow(QWidget *widget);
+    bool initializeOffscreenTexture(const QSize &size);
 
     QGLWindowSurfacePrivate *d_ptr;
 };