On Tue, Mar 20, 2012 at 12:45 PM, Kristian Hoegsberg <[email protected]> wrote: > On Sun, Mar 11, 2012 at 07:48:45PM -0500, Rob Clark wrote: >> From: Rob Clark <[email protected]> >> >> For deferred rendering GPUs, some magic under the hood of eglSwapBuffers() >> is responsible for making sure rendering has actually started. (glFlush() >> doesn't do the trick.) >> >> I've managed to make weston drm compositor work on sgx/pvr stack (plus >> omapdrm providing the KMS bits) by getting eglWaitGL() to do the work >> that would normally be done in eglSwapBuffers(), in case that the >> surfaceless_gles2 extension is in use (as detected by eglMakeCurrent() >> call). >> >> I'm not sure if this eglWaitGL() call would potentially cause issues on >> other GL(ES) stacks? Or if it is a suitable work-around until the >> gbm-surface stuff is in use? > > I hope we can land the gbm-surface feature sooner rather than later, > so maybe you can just keep this a local workaround a little longer?
yeah, that should be fine.. I think the gbm-surface stuff will make the EGL integration work somewhat smoother.. It might be nice for 0.85 branch, assuming gbm-surface isn't for 0.85 too. Although maybe I could try and convince ubuntu folks to carry that as a patch in 12.04 weston deb's. (Assuming no one things eglWaitGL() would cause issues w/ other stacks..) BR, -R > thanks, > Kristian > >> --- >> src/compositor-drm.c | 1 + >> 1 files changed, 1 insertions(+), 0 deletions(-) >> >> diff --git a/src/compositor-drm.c b/src/compositor-drm.c >> index c8e6eaf..f556ac3 100644 >> --- a/src/compositor-drm.c >> +++ b/src/compositor-drm.c >> @@ -246,6 +246,7 @@ drm_output_repaint(struct weston_output *output_base, >> weston_surface_draw(surface, &output->base, damage); >> >> glFlush(); >> + eglWaitGL(); >> >> output->current ^= 1; >> >> -- >> 1.7.5.4 >> >> _______________________________________________ >> wayland-devel mailing list >> [email protected] >> http://lists.freedesktop.org/mailman/listinfo/wayland-devel > _______________________________________________ > wayland-devel mailing list > [email protected] > http://lists.freedesktop.org/mailman/listinfo/wayland-devel _______________________________________________ wayland-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/wayland-devel
