mutter/tests/conform/test-timeline-rewind.c
Owen W. Taylor 6705ce6c6a Move elapsed-time calculations into ClutterTimeline
Instead of calculating a delta in the master clock, and passing that
into each timeline, make each timeline individually responsible for
remembering the last time and computing the delta.

This:

 - Fixes a problem where we could spin infinitely processing
   timeline-only frames with < 1msec differences.
 - Makes timelines consistently start timing on the first frame;
   instead of doing different things for the first started timeline
   and other timelines.
 - Improves accuracy of elapsed time computations by avoiding
   accumulating microsecond => millisecond truncation errors.

http://bugzilla.openedhand.com/show_bug.cgi?id=1637

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2009-06-09 15:03:56 +01:00

113 lines
2.6 KiB
C

#include <stdlib.h>
#include <glib.h>
#include <clutter/clutter.h>
#include "test-conform-common.h"
#define TEST_TIMELINE_DURATION 500
#define TEST_WATCHDOG_KICK_IN_SECONDS 10
typedef struct _TestState
{
ClutterTimeline *timeline;
gint rewind_count;
guint source_id;
} TestState;
static gboolean
watchdog_timeout (TestState *state)
{
g_test_message ("Watchdog timer kicking in\n");
g_test_message ("rewind_count=%i\n", state->rewind_count);
if (state->rewind_count <= 3)
{
/* The test has hung */
g_test_message ("Failed (This test shouldn't have hung!)\n");
exit (EXIT_FAILURE);
}
else
{
g_test_message ("Passed\n");
clutter_main_quit ();
}
return FALSE;
}
static void
new_frame_cb (ClutterTimeline *timeline,
gint frame_num,
TestState *state)
{
gint elapsed_time = clutter_timeline_get_elapsed_time (timeline);
if (elapsed_time == TEST_TIMELINE_DURATION)
{
g_test_message ("new-frame signal recieved (end of timeline)\n");
g_test_message ("Rewinding timeline\n");
clutter_timeline_rewind (timeline);
state->rewind_count++;
}
else
{
if (elapsed_time == 0)
{
g_test_message ("new-frame signal recieved (start of timeline)\n");
}
else
{
g_test_message ("new-frame signal recieved (mid frame)\n");
}
if (state->rewind_count >= 2)
{
g_test_message ("Sleeping for 1 second\n");
g_usleep (1000000);
}
}
}
static gboolean
frame_tick (gpointer data)
{
TestState *state = data;
GTimeVal cur_tick = { 0, };
g_get_current_time (&cur_tick);
if (clutter_timeline_is_playing (state->timeline))
clutter_timeline_do_tick (state->timeline, &cur_tick);
return TRUE;
}
void
test_timeline_rewind (TestConformSimpleFixture *fixture,
gconstpointer data)
{
TestState state;
state.timeline =
clutter_timeline_new (TEST_TIMELINE_DURATION);
g_signal_connect (G_OBJECT(state.timeline),
"new-frame",
G_CALLBACK(new_frame_cb),
&state);
g_test_message ("Installing a watchdog timeout "
"to determine if this test hangs\n");
g_timeout_add (TEST_WATCHDOG_KICK_IN_SECONDS*1000,
(GSourceFunc)watchdog_timeout,
&state);
state.rewind_count = 0;
state.source_id =
clutter_threads_add_frame_source (60, frame_tick, &state);
clutter_timeline_start (state.timeline);
clutter_main();
g_source_remove (state.source_id);
g_object_unref (state.timeline);
}