<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - getting stuck before eglswapbuffers in app without wl_shell and wl_registry components" href="https://bugs.freedesktop.org/show_bug.cgi?id=77260#c2">Comment # 2</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - getting stuck before eglswapbuffers in app without wl_shell and wl_registry components" href="https://bugs.freedesktop.org/show_bug.cgi?id=77260">bug 77260</a> from <a class="email" href="mailto:pulkitnandan@gmail.com" title="Rohit Nandan <pulkitnandan@gmail.com>"> Rohit Nandan</a> <pre>EGL 1.4, ubuntu 12.04 ,x64. Had no info of shell and registry On Thu, Apr 10, 2014 at 11:51 AM, <<a href="mailto:bugzilla-daemon@freedesktop.org">bugzilla-daemon@freedesktop.org</a>> wrote: > *<a href="show_bug.cgi?id=77260#c1">Comment # 1</a> <<a class="bz_bug_link bz_status_NEW " title="NEW --- - getting stuck before eglswapbuffers in app without wl_shell and wl_registry components" href="show_bug.cgi?id=77260#c1">https://bugs.freedesktop.org/show_bug.cgi?id=77260#c1</a>> on > <a class="bz_bug_link bz_status_NEW " title="NEW --- - getting stuck before eglswapbuffers in app without wl_shell and wl_registry components" href="show_bug.cgi?id=77260">bug 77260</a> <<a class="bz_bug_link bz_status_NEW " title="NEW --- - getting stuck before eglswapbuffers in app without wl_shell and wl_registry components" href="show_bug.cgi?id=77260">https://bugs.freedesktop.org/show_bug.cgi?id=77260</a>> from Pekka > Paalanen <<a href="mailto:ppaalanen@gmail.com">ppaalanen@gmail.com</a>> * > > I am puzzled about your question. > > To create an EGLSurface, you will need to create a wl_surface as the first > step. You cannot do that without creating a wl_registry, binding to > wl_compositor, and sending a wl_compositor request to create the wl_surface. > > Furthermore, the wl_surface will not be mapped until you tell the server what > it is. You are creating a top-level window, so you have to use wl_shell or > xdg_shell to say it is a top-level window. To access wl_shell or xdg_shell, you > again need wl_registry. > > If you do not tell the server what the wl_surface is for, the surface will > never be mapped, and hence wl_surface.frame callbacks will never fire. EGL will > internally wait for the frame callback of the previous eglSwapBuffers, if you > have swap interval greater than 0. So, without mapping a surface, EGL can > indeed get stuck, because the frames you render will never get to screen. > > But I still do not understand how you could ever work without wl_registry. Are > you not telling the whole story, like are you using a toolkit of some kind? Or > are you trying to do off-screen rendering without a real window? > > What EGL implementation are you using? On what platform? > > What do you mean by blocked, exactly? Have a gdb backtrace? > > ------------------------------ > You are receiving this mail because: > > - You are on the CC list for the bug. > - You reported the bug. > ></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>