From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Date: Sat, 29 Jun 2013 10:57:10 +0200 Subject: [Buildroot] Issue with Qt5 and PowerVR drivers In-Reply-To: <321768C95D21724485BCE784F1BE98473EB5E2E9@DBDE04.ent.ti.com> References: <20130628143717.3e16fd9c@skate> <321768C95D21724485BCE784F1BE98473EB5E16F@DBDE04.ent.ti.com> <20130628161533.2dea9fdf@skate> <321768C95D21724485BCE784F1BE98473EB5E2E9@DBDE04.ent.ti.com> Message-ID: <20130629105710.42fe04e0@skate> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hello Prabu, Thanks for your reply. On Fri, 28 Jun 2013 17:56:37 +0000, Sundareson, Prabindh wrote: > I see. For 5.0.2 you may not need the eglfs patch at all I think. The patch was definitely needed. Without it, I'm getting the error "EGL Error : Could not create the egl surface: error = 0x3003" which you mentioned in http://tigraphics.blogspot.fr/2013/02/qt500-eglfs-could-not-create-egl.html. Applying your patch made the error go away. > >> The 5.0.2 version, since 5.1 is still alpha (or beta?) > > nullws - null window system, consider it a full screen "window" Ok. I see in https://github.com/openwebos/qt/blob/master/src/plugins/gfxdrivers/eglnullws/README that this nullws thing also exists in Qt4, and is useful to get more performances when you're running a single OpenGL application, full screen. > >> Hum, what is nullws ? > > > What you are seeing is exactly what is expected. My own results were published in the video below: > > http://www.youtube.com/watch?v=Z9r8o2ToLRw Ok, but then how is this usable? I believe there are many cases where you will want to mix normal Qt widgets (buttons, menus, etc.) with one OpenGL-capable Qt widget. How can one achieve that with Qt5? Thanks, Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com