Hi, I found out why it was blocking, so I thought it would be nice to post - maybe I help someone in future. I register my program to surface events with "ilm_surfaceAddNotification" and when the visibility is 0, I stop rendering. Mit freundlichen Grüßen i. A. Vladimir Jovic ifm ecomatic gmbh > -----Ursprüngliche Nachricht----- > Von: Ucan, Emre (ADITG/ESB) <eucan@de.adit-jv.com> > Gesendet: Dienstag, 2. Oktober 2018 09:58 > An: Jovic, Vladimir <vladimir.jovic@ifm.com> > Cc: genivi-ivi-layer-management@lists.genivi.org > Betreff: RE: Do I need to somehow activate sufraces? > > Hi, > > I guess your application is blocked, because it is waiting for a wayland event. It > might be that you called wl_display_dispatch when you are not waiting any events. > > When you set visibility or render order, application gets a wayland event and it is > unblocked. > > You can check with gdb, where the application is blocked. > > Best regards > > Emre Ucan > Engineering Software Base (ADITG/ESB) > > Tel. +49 5121 49 6937 > > > -----Original Message----- > > From: genivi-ivi-layer-management <genivi-ivi-layer-management- > > bounces@lists.genivi.org> On Behalf Of Jovic, Vladimir > > Sent: Montag, 1. Oktober 2018 20:33 > > To: genivi-ivi-layer-management@lists.genivi.org > > Subject: Do I need to somehow activate sufraces? > > > > Hi > > > > I started recently with ivi. I managed to create not so simple > > example, and it almost works. > > So, I start my example, it creates a layer, then wl and ivi surfaces, > > set source and destination dimentions for both layer and surface, set > > opacity, set order and then show both. And then it gets stuck. > > This is what getting scene outputs: > > root@pdm3:/home# LayerManagerControl get scene screen 0 (0x0) > > --------------------------------------- > > - connector name: Unknown-1 > > - resolution: x=1280, y=480 > > - layer render order: 1502(0x5de), > > > > layer 1502 (0x5de) > > --------------------------------------- > > - destination region: x=0, y=0, w=1280, h=480 > > - source region: x=0, y=0, w=1280, h=480 > > - opacity: 0.5 > > - visibility: 1 > > - surface render order: 50(0x32), > > - on screen: 0(0x0) > > > > surface 50 (0x32) > > --------------------------------------- > > - created by pid: 21067 > > - original size: x=800, y=600 > > - destination region: x=0, y=0, w=800, h=600 > > - source region: x=0, y=0, w=800, h=600 > > - opacity: 0.898438 > > - visibility: 1 > > - frame counter: 1 > > - on layer: 1502(0x5de) > > > > > > Take a note that the "frame counter" does not go above 1. > > > > Now, if I do this: > > LayerManagerControl set layer 1502 render order 50 or this: > > LayerManagerControl set surface 50 destination region 0 0 600 400 then > > it starts showing what is being rendered, and the frame counter starts > > going up. > > I tried looking into the source code for LayerManagerControl, but it > > revealed nothing to explain this behaviour. > > > > The sequence for ivi application > > (https://urldefense.proofpoint.com/v2/url?u=https-3A__at.projects.geni > > vi.org_wiki_display_PROJ_Wayland-2BIVI-2BExtension-2BD&d=DwIGaQ&c=riR7 > > > jviByh3sGm7GIiSlHkFN0_aSATB6A8x0nHa2EM0&r=8wfdsMUxnRudpdLb_Cg4rnnn > KI-g > > QZ4ykr3tjUrejXg&m=- > BxXCeZTEwl0deJpgygH4HnaOinJY3QNk4Zs4vViNo0&s=NOqTKq > > eb_8sGsBW6Ig9yqJrBHSjuh1BDNHsSA_tmo0Y&e= > > esign#WaylandIVIExtensionDesign- > > SequenceforiviapplicationandHMIcentralController) tells nothing about > > specifically unpausing rendering starting. > > > > So, can anyone explain why is the counting not going up? Do I somehow > > need to start the ivi application? I see no ivi function to do anything like that. > > > > > > Mit freundlichen Grüßen > > > > Vladimir Jovic > > > > > > _______________________________________________ > > genivi-ivi-layer-management mailing list > > genivi-ivi-layer-management@lists.genivi.org > > https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.genivi.org_ > > mailman_listinfo_genivi-2Divi-2Dlayer-2Dmanagement&d=DwIGaQ&c=riR7jviB > > > yh3sGm7GIiSlHkFN0_aSATB6A8x0nHa2EM0&r=8wfdsMUxnRudpdLb_Cg4rnnnKI- > gQZ4y > > kr3tjUrejXg&m=- > BxXCeZTEwl0deJpgygH4HnaOinJY3QNk4Zs4vViNo0&s=Wa53HONFBq > > cWTVykLyg1SzWgKudPKOvLHfkibp-PLG8&e=