flywithu/ntel-gpu-tools
1
0
Fork 0
mirror of https://github.com/tiagovignatti/intel-gpu-tools.git synced 2025-11-04 12:07:12 +00:00
Code Issues Releases Wiki Activity

flip_test: check if the vblank and flip states correlate

Browse Source 
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Imre Deak 2012-10-22 20:40:06 +03:00 committed by Daniel Vetter
parent 429dc01636
commit 7f32adc6c5
1 changed files with 43 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
tests/flip_test.c
View File

@ -291,6 +291,11 @@ static void page_flip_handler(int fd, unsigned int frame, unsigned int sec,
event_handler(&o->flip_state, frame, sec, usec);
}
static double frame_time(struct test_output *o)
{
return 1000.0 * 1000.0 / o->mode.vrefresh;
}
static void fixup_premature_vblank_ts(struct test_output *o,
struct event_state *es)
{
@ -359,8 +364,7 @@ static void check_state(struct test_output *o, struct event_state *es)
if ((o->flags & TEST_CHECK_TS) && (!analog_tv_connector(o))) {
timersub(&es->current_ts, &es->last_ts, &diff);
usec_interflip = (double)es->seq_step /
((double)o->mode.vrefresh) * 1000.0 * 1000.0;
usec_interflip = (double)es->seq_step * frame_time(o);
if (fabs((((double) diff.tv_usec) - usec_interflip) /
usec_interflip) > 0.005) {
fprintf(stderr, "inter-%s ts jitter: %is, %ius\n",
@ -380,13 +384,48 @@ static void check_state(struct test_output *o, struct event_state *es)
}
}
static void check_state_correlation(struct test_output *o,
struct event_state *es1,
struct event_state *es2)
{
struct timeval tv_diff;
double ftime;
double usec_diff;
int seq_diff;
if (es1->count == 0 || es2->count == 0)
return;
timersub(&es2->current_ts, &es1->current_ts, &tv_diff);
usec_diff = tv_diff.tv_sec * 1000 * 1000 + tv_diff.tv_usec;
seq_diff = es2->current_seq - es1->current_seq;
ftime = frame_time(o);
usec_diff -= seq_diff * ftime;
if (fabs(usec_diff) / ftime > 0.005) {
fprintf(stderr,
"timestamp mismatch between %s and %s (diff %.4f sec)\n",
es1->name, es2->name, usec_diff / 1000 / 1000);
exit(14);
}
}
static void check_all_state(struct test_output *o,
unsigned int completed_events)
{
if (completed_events & EVENT_FLIP)
bool flip, vblank;
flip = completed_events & EVENT_FLIP;
vblank = completed_events & EVENT_VBLANK;
if (flip)
check_state(o, &o->flip_state);
if (completed_events & EVENT_VBLANK)
if (vblank)
check_state(o, &o->vblank_state);
if (flip && vblank)
check_state_correlation(o, &o->flip_state, &o->vblank_state);
}
/* Return mask of completed events. */