/* Note: The system mutex must be locked (exactly once) so when we
* wait for the condition variable it gets auto-unlocked. For a
* nested lock that would not be the case.
*/
void _al_display_xglx_await_resize(ALLEGRO_DISPLAY *d, int old_resize_count,
bool delay_hack)
{
ALLEGRO_SYSTEM_XGLX *system = (void *)al_get_system_driver();
ALLEGRO_DISPLAY_XGLX *glx = (ALLEGRO_DISPLAY_XGLX *)d;
ALLEGRO_TIMEOUT timeout;
ALLEGRO_DEBUG("Awaiting resize event\n");
XSync(system->x11display, False);
/* Wait until we are actually resized.
* Don't wait forever if an event never comes.
*/
al_init_timeout(&timeout, 1.0);
while (old_resize_count == glx->resize_count) {
if (_al_cond_timedwait(&system->resized, &system->lock, &timeout) == -1) {
ALLEGRO_ERROR("Timeout while waiting for resize event.\n");
return;
}
}
/* XXX: This hack helps when toggling between fullscreen windows and not,
* on various window managers.
*/
if (delay_hack) {
al_rest(0.2);
}
xdpy_acknowledge_resize(d);
}
/* Function: al_wait_cond_until
*/
int al_wait_cond_until(ALLEGRO_COND *cond, ALLEGRO_MUTEX *mutex,
const ALLEGRO_TIMEOUT *timeout)
{
ASSERT(cond);
ASSERT(mutex);
ASSERT(timeout);
return _al_cond_timedwait(&cond->cond, &mutex->mutex, timeout);
}
