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tests/kms_flip: Improve the accuracy of out frame time calculation

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Don't use the rounded vrefresh info to predict the frame duration.
Instead calculate if from the clock.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
This commit is contained in:
Ville Syrjälä 2013-10-16 22:43:04 +03:00
parent 8a17af80e0
commit 75cf16e585
1 changed files with 2 additions and 2 deletions
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4
tests/kms_flip.c
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@ -547,7 +547,7 @@ static void page_flip_handler(int fd, unsigned int frame, unsigned int sec,
static double frame_time(struct test_output *o) static double frame_time(struct test_output *o)
{ {
return 1000.0 * 1000.0 / o->kmode[0].vrefresh; return 1000.0 * o->kmode[0].htotal * o->kmode[0].vtotal / o->kmode[0].clock;
} }
static void *vblank_wait_thread_func(void *data) static void *vblank_wait_thread_func(void *data)
@ -1209,7 +1209,7 @@ static void check_final_state(struct test_output *o, struct event_state *es,
int count = es->count; int count = es->count;
count *= o->seq_step; count *= o->seq_step;
expected = elapsed * o->kmode[0].vrefresh / (1000 * 1000); expected = elapsed / frame_time(o);
igt_assert_f(count >= expected * 99/100 && count <= expected * 101/100, igt_assert_f(count >= expected * 99/100 && count <= expected * 101/100,
"dropped frames, expected %d, counted %d, encoder type %d\n", "dropped frames, expected %d, counted %d, encoder type %d\n",
expected, count, o->kencoder[0]->encoder_type); expected, count, o->kencoder[0]->encoder_type);