diff options
| -rw-r--r-- | src/egl/drivers/dri2/platform_x11.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/egl/drivers/dri2/platform_x11.c b/src/egl/drivers/dri2/platform_x11.c index ccb097f1241..ec76aecfdd7 100644 --- a/src/egl/drivers/dri2/platform_x11.c +++ b/src/egl/drivers/dri2/platform_x11.c @@ -743,6 +743,20 @@ dri2_swap_buffers_msc(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw, free(reply); } + /* Since we aren't watching for the server's invalidate events like we're + * supposed to (due to XCB providing no mechanism for filtering the events + * the way xlib does), and SwapBuffers is a common cause of invalidate + * events, just shove one down to the driver, even though we haven't told + * the driver that we're the kind of loader that provides reliable + * invalidate events. This causes the driver to request buffers again at + * its next draw, so that we get the correct buffers if a pageflip + * happened. The driver should still be using the viewport hack to catch + * window resizes. + */ + if (dri2_dpy->flush && + dri2_dpy->flush->base.version >= 3 && dri2_dpy->flush->invalidate) + (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable); + return swap_count; } |