flip_test: fix timestamp order

When grabbing the timestamp after a flip, it has a decent chance to
actually be after the flip. Surprising.

diff --git a/tests/flip_test.c b/tests/flip_test.c
index d083fa6..539e08f 100644 (file)
--- a/tests/flip_test.c
+++ b/tests/flip_test.c
@@ -413,6 +413,8 @@ static void flip_mode(struct test_output *o, int crtc, int duration)
        if (o->flags & TEST_CHECK_TS)
                sleep(1);
 
+       gettimeofday(&o->last_flip_received, NULL);
+
        if (drmModePageFlip(drm_fd, o->crtc, o->fb_ids[1],
                              DRM_MODE_PAGE_FLIP_EVENT, o)) {
                fprintf(stderr, "failed to page flip: %s\n", strerror(errno));
@@ -427,7 +429,6 @@ static void flip_mode(struct test_output *o, int crtc, int duration)
        evctx.page_flip_handler = page_flip_handler;
 
        gettimeofday(&end, NULL);
-       gettimeofday(&o->last_flip_received, NULL);
        end.tv_sec += duration;
 
        while (1) {