diff options
Diffstat (limited to 'libweston/compositor-drm.c')
| -rw-r--r-- | libweston/compositor-drm.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/libweston/compositor-drm.c b/libweston/compositor-drm.c index c09c49bf..24573f48 100644 --- a/libweston/compositor-drm.c +++ b/libweston/compositor-drm.c @@ -1,6 +1,7 @@ /* * Copyright © 2008-2011 Kristian Høgsberg * Copyright © 2011 Intel Corporation + * Copyright © 2016 NVIDIA Corporation * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the @@ -1433,6 +1434,19 @@ drm_output_update_complete(struct drm_output *output, uint32_t flags, ts.tv_sec = sec; ts.tv_nsec = usec * 1000; + + /* Zero timestamp means failure to get valid timestamp, so + * immediately finish frame + * + * FIXME: Driver should never return an invalid page flip + * timestamp */ + if (ts.tv_sec == 0 && ts.tv_nsec == 0) { + weston_compositor_read_presentation_clock( + output->base.compositor, + &ts); + flags = WP_PRESENTATION_FEEDBACK_INVALID; + } + weston_output_finish_frame(&output->base, &ts, flags); /* We can't call this from frame_notify, because the output's @@ -2434,8 +2448,16 @@ drm_output_start_repaint_loop(struct weston_output *output_base) vbl.request.type |= drm_waitvblank_pipe(output); ret = drmWaitVBlank(backend->drm.fd, &vbl); - /* Error ret or zero timestamp means failure to get valid timestamp */ - if ((ret == 0) && (vbl.reply.tval_sec > 0 || vbl.reply.tval_usec > 0)) { + if (ret) { + /* Immediate query failed. It may always fail so we'll never get + * a valid timestamp to update msc and call into finish frame. + * Hence, jump to finish frame here. + */ + goto finish_frame; + } + + /* Zero timestamp means failure to get valid timestamp */ + if (vbl.reply.tval_sec > 0 || vbl.reply.tval_usec > 0) { ts.tv_sec = vbl.reply.tval_sec; ts.tv_nsec = vbl.reply.tval_usec * 1000; @@ -2456,7 +2478,7 @@ drm_output_start_repaint_loop(struct weston_output *output_base) } } - /* Immediate query didn't provide valid timestamp. + /* Immediate query succeeded, but didn't provide valid timestamp. * Use pageflip fallback. */ |