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flip_test: factor out the event loop/wait for event logic

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Needed by an upcoming patch where we want to wait for an event without
starting a new round of test run.

No functional change.

Signed-off-by: Imre Deak <imre.deak@intel.com>
This commit is contained in:
Imre Deak 2012-10-12 13:31:25 +03:00
parent 0699dc7259
commit c96d18a994
1 changed files with 68 additions and 54 deletions
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122
tests/flip_test.c
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@ -404,12 +404,75 @@ fb_is_bound(struct test_output *o, int fb)
return mode.mode_valid && mode.fb_id == fb;
}
static void wait_for_events(struct test_output *o)
{
drmEventContext evctx;
struct timeval timeout = { .tv_sec = 3, .tv_usec = 0 };
fd_set fds;
int ret;
memset(&evctx, 0, sizeof evctx);
evctx.version = DRM_EVENT_CONTEXT_VERSION;
evctx.vblank_handler = NULL;
evctx.page_flip_handler = page_flip_handler;
/* make timeout lax with the dummy load */
if (o->flags & TEST_WITH_DUMMY_LOAD)
timeout.tv_sec *= 10;
FD_ZERO(&fds);
FD_SET(0, &fds);
FD_SET(drm_fd, &fds);
ret = select(drm_fd + 1, &fds, NULL, NULL, &timeout);
if (ret <= 0) {
fprintf(stderr, "select timed out or error (ret %d)\n",
ret);
exit(1);
} else if (FD_ISSET(0, &fds)) {
fprintf(stderr, "no fds active, breaking\n");
exit(2);
}
do_or_die(drmHandleEvent(drm_fd, &evctx));
}
/* Returned the ellapsed time in us */
static unsigned event_loop(struct test_output *o, unsigned duration_sec)
{
drmEventContext evctx;
struct timeval start, end;
struct timeval tv_dur;
gettimeofday(&start, NULL);
end.tv_sec = start.tv_sec + duration_sec;
end.tv_usec = start.tv_usec;
while (1) {
struct timeval now;
wait_for_events(o);
gettimeofday(&now, NULL);
if (!timercmp(&now, &end, <))
break;
}
gettimeofday(&end, NULL);
timersub(&end, &start, &tv_dur);
/* and drain the event queue */
memset(&evctx, 0, sizeof evctx);
evctx.page_flip_handler = NULL;
do_or_die(drmHandleEvent(drm_fd, &evctx));
return tv_dur.tv_sec * 1000 * 1000 + tv_dur.tv_usec;
}
static void flip_mode(struct test_output *o, int crtc, int duration)
{
int ret;
int bpp = 32, depth = 24;
drmEventContext evctx;
struct timeval end;
unsigned ellapsed;
connector_find_preferred_mode(o, crtc);
if (!o->mode_valid)
@ -459,63 +522,14 @@ static void flip_mode(struct test_output *o, int crtc, int duration)
o->current_fb_id = 1;
o->count = 1; /* for the uncounted tail */
memset(&evctx, 0, sizeof evctx);
evctx.version = DRM_EVENT_CONTEXT_VERSION;
evctx.vblank_handler = NULL;
evctx.page_flip_handler = page_flip_handler;
gettimeofday(&end, NULL);
end.tv_sec += duration;
while (1) {
struct timeval now, timeout = { .tv_sec = 3, .tv_usec = 0 };
fd_set fds;
/* make timeout lax with the dummy load */
if (o->flags & TEST_WITH_DUMMY_LOAD)
timeout.tv_sec *= 10;
FD_ZERO(&fds);
FD_SET(0, &fds);
FD_SET(drm_fd, &fds);
ret = select(drm_fd + 1, &fds, NULL, NULL, &timeout);
if (ret <= 0) {
fprintf(stderr, "select timed out or error (ret %d)\n",
ret);
exit(1);
} else if (FD_ISSET(0, &fds)) {
fprintf(stderr, "no fds active, breaking\n");
exit(2);
}
gettimeofday(&now, NULL);
if (now.tv_sec > end.tv_sec ||
(now.tv_sec == end.tv_sec && now.tv_usec >= end.tv_usec)) {
break;
}
do_or_die(drmHandleEvent(drm_fd, &evctx));
}
/* and drain the event queue */
evctx.page_flip_handler = NULL;
do_or_die(drmHandleEvent(drm_fd, &evctx));
ellapsed = event_loop(o, duration);
/* Verify we drop no frames, but only if it's not a TV encoder, since
* those use some funny fake timings behind userspace's back. */
if (o->flags & TEST_CHECK_TS && !analog_tv_connector(o)) {
struct timeval now;
long us;
int expected;
gettimeofday(&now, NULL);
us = duration * 1000 * 1000;
us += (now.tv_sec - end.tv_sec) * 1000 * 1000;
us += now.tv_usec - end.tv_usec;
expected = us * o->mode.vrefresh / (1000 * 1000);
expected = ellapsed * o->mode.vrefresh / (1000 * 1000);
if (o->count < expected * 99/100) {
fprintf(stderr, "dropped frames, expected %d, counted %d, encoder type %d\n",
expected, o->count, o->encoder->encoder_type);