static void *watchdog_thread(void *param)
{
watchdog *thiz = (watchdog *) param;
while (TRUE)
{
if (osd_event_wait(thiz->event(), thiz->getTimeout()))
{
if (thiz->do_exit())
break;
else
{
osd_event_reset(thiz->event());
continue;
}
}
else
{
fprintf(stderr, "Terminating due to watchdog timeout\n");
osd_process_kill();
}
}
return NULL;
}
int osd_work_item_wait(osd_work_item *item, osd_ticks_t timeout)
{
// if we're done already, just return
if (item->done)
return TRUE;
// if we don't have an event, create one
if (item->event == NULL)
{
INT32 lockslot = osd_scalable_lock_acquire(item->queue->lock);
item->event = osd_event_alloc(TRUE, FALSE); // manual reset, not signalled
osd_scalable_lock_release(item->queue->lock, lockslot);
}
else
osd_event_reset(item->event);
// if we don't have an event, we need to spin (shouldn't ever really happen)
if (item->event == NULL)
{
// TODO: do we need to measure the spin time here as well? and how can we do it?
spin_while(&item->done, 0, timeout);
}
// otherwise, block on the event until done
else if (!item->done)
osd_event_wait(item->event, timeout);
// return TRUE if the refcount actually hit 0
return item->done;
}
int osd_work_item_wait(osd_work_item *item, osd_ticks_t timeout)
{
// if we're done already, just return
if (item->done)
return TRUE;
// if we don't have an event, create one
if (item->event == NULL)
item->event = osd_event_alloc(TRUE, FALSE); // manual reset, not signalled
else
osd_event_reset(item->event);
// if we don't have an event, we need to spin (shouldn't ever really happen)
if (item->event == NULL)
{
osd_ticks_t stopspin = osd_ticks() + timeout;
do {
int spin = 10000;
while (--spin && !item->done)
osd_yield_processor();
} while (!item->done && osd_ticks() < stopspin);
}
// otherwise, block on the event until done
else if (!item->done)
osd_event_wait(item->event, timeout);
// return TRUE if the refcount actually hit 0
return item->done;
}
static void *worker_thread_entry(void *param)
{
work_thread_info *thread = (work_thread_info *)param;
osd_work_queue *queue = thread->queue;
// loop until we exit
for ( ;; )
{
// block waiting for work or exit
// bail on exit, and only wait if there are no pending items in queue
if (!queue->exiting && queue->list == NULL)
{
begin_timing(thread->waittime);
osd_event_wait(thread->wakeevent, INFINITE);
end_timing(thread->waittime);
}
if (queue->exiting)
break;
// indicate that we are live
atomic_exchange32(&thread->active, TRUE);
atomic_increment32(&queue->livethreads);
// process work items
for ( ;; )
{
osd_ticks_t stopspin;
// process as much as we can
worker_thread_process(queue, thread);
// if we're a high frequency queue, spin for a while before giving up
if (queue->flags & WORK_QUEUE_FLAG_HIGH_FREQ && queue->list == NULL)
{
// spin for a while looking for more work
begin_timing(thread->spintime);
stopspin = osd_ticks() + SPIN_LOOP_TIME;
do {
int spin = 10000;
while (--spin && queue->list == NULL)
osd_yield_processor();
} while (queue->list == NULL && osd_ticks() < stopspin);
end_timing(thread->spintime);
}
// if nothing more, release the processor
if (queue->list == NULL)
break;
add_to_stat(&queue->spinloops, 1);
}
// decrement the live thread count
atomic_exchange32(&thread->active, FALSE);
atomic_decrement32(&queue->livethreads);
}
return NULL;
}
void sdlwindow_video_window_update(running_machine &machine, sdl_window_info *window)
{
osd_ticks_t event_wait_ticks;
ASSERT_MAIN_THREAD();
// adjust the cursor state
sdlwindow_update_cursor_state(machine, window);
// if we're visible and running and not in the middle of a resize, draw
if (window->target != NULL)
{
int tempwidth, tempheight;
// see if the games video mode has changed
window->target->compute_minimum_size(tempwidth, tempheight);
if (tempwidth != window->minwidth || tempheight != window->minheight)
{
window->minwidth = tempwidth;
window->minheight = tempheight;
if (!window->fullscreen)
{
sdlwindow_blit_surface_size(window, window->width, window->height);
sdlwindow_resize(window, window->blitwidth, window->blitheight);
}
else if (video_config.switchres)
{
pick_best_mode(window, &tempwidth, &tempheight);
sdlwindow_resize(window, tempwidth, tempheight);
}
}
if (video_config.waitvsync && video_config.syncrefresh)
event_wait_ticks = osd_ticks_per_second(); // block at most a second
else
event_wait_ticks = 0;
if (osd_event_wait(window->rendered_event, event_wait_ticks))
{
worker_param wp;
render_primitive_list *primlist;
clear_worker_param(&wp);
// ensure the target bounds are up-to-date, and then get the primitives
primlist = &window->get_primitives(window);
// and redraw now
wp.list = primlist;
wp.window = window;
wp.m_machine = &machine;
execute_async(&draw_video_contents_wt, &wp);
}
}
}
void sdlwindow_video_window_update(running_machine *machine, sdl_window_info *window)
{
ASSERT_MAIN_THREAD();
// adjust the cursor state
sdlwindow_update_cursor_state(machine, window);
// if we're visible and running and not in the middle of a resize, draw
if (window->target != NULL)
{
int tempwidth, tempheight;
// see if the games video mode has changed
render_target_get_minimum_size(window->target, &tempwidth, &tempheight);
if (tempwidth != window->minwidth || tempheight != window->minheight)
{
window->minwidth = tempwidth;
window->minheight = tempheight;
if (!window->fullscreen)
{
sdlwindow_blit_surface_size(window, window->width, window->height);
sdlwindow_resize(window, window->blitwidth, window->blitheight);
}
else if (video_config.switchres)
{
pick_best_mode(window, &tempwidth, &tempheight);
sdlwindow_resize(window, tempwidth, tempheight);
}
}
// only render if we have been signalled
if (osd_event_wait(window->rendered_event, 0))
{
worker_param wp;
const render_primitive_list *primlist;
clear_worker_param(&wp);
// ensure the target bounds are up-to-date, and then get the primitives
primlist = window->get_primitives(window);
// and redraw now
wp.list = primlist;
wp.window = window;
wp.machine = machine;
execute_async(&draw_video_contents_wt, &wp);
}
}
}
int osd_work_queue_wait(osd_work_queue *queue, osd_ticks_t timeout)
{
// if no threads, no waiting
if (queue->threads == 0)
return TRUE;
// if no items, we're done
if (queue->items == 0)
return TRUE;
// if this is a multi queue, help out rather than doing nothing
if (queue->flags & WORK_QUEUE_FLAG_MULTI)
{
work_thread_info *thread = &queue->thread[queue->threads];
end_timing(thread->waittime);
// process what we can as a worker thread
worker_thread_process(queue, thread);
// if we're a high frequency queue, spin until done
if (queue->flags & WORK_QUEUE_FLAG_HIGH_FREQ && queue->items != 0)
{
osd_ticks_t stopspin = osd_ticks() + timeout;
// spin until we're done
begin_timing(thread->spintime);
do {
int spin = 10000;
while (--spin && queue->items != 0)
osd_yield_processor();
} while (queue->items != 0 && osd_ticks() < stopspin);
end_timing(thread->spintime);
begin_timing(thread->waittime);
return (queue->items == 0);
}
begin_timing(thread->waittime);
}
// reset our done event and double-check the items before waiting
osd_event_reset(queue->doneevent);
atomic_exchange32(&queue->waiting, TRUE);
if (queue->items != 0)
osd_event_wait(queue->doneevent, timeout);
atomic_exchange32(&queue->waiting, FALSE);
// return TRUE if we actually hit 0
return (queue->items == 0);
}
void sdl_window_info::update()
{
osd_ticks_t event_wait_ticks;
ASSERT_MAIN_THREAD();
// adjust the cursor state
//sdlwindow_update_cursor_state(machine, window);
execute_async(&update_cursor_state_wt, worker_param(this));
// if we're visible and running and not in the middle of a resize, draw
if (m_target != NULL)
{
int tempwidth, tempheight;
// see if the games video mode has changed
m_target->compute_minimum_size(tempwidth, tempheight);
if (osd_dim(tempwidth, tempheight) != m_minimum_dim)
{
m_minimum_dim = osd_dim(tempwidth, tempheight);
if (!this->m_fullscreen)
{
//Don't resize window without user interaction;
//window_resize(blitwidth, blitheight);
}
else if (video_config.switchres)
{
osd_dim tmp = this->pick_best_mode();
resize(tmp.width(), tmp.height());
}
}
if (video_config.waitvsync && video_config.syncrefresh)
event_wait_ticks = osd_ticks_per_second(); // block at most a second
else
event_wait_ticks = 0;
if (osd_event_wait(m_rendered_event, event_wait_ticks))
{
// ensure the target bounds are up-to-date, and then get the primitives
render_primitive_list &primlist = *m_renderer->get_primitives();
// and redraw now
execute_async(&draw_video_contents_wt, worker_param(this, primlist));
}
}
}
static void *worker_thread_entry(void *param)
{
work_thread_info *thread = (work_thread_info *)param;
osd_work_queue *queue = thread->queue;
#if defined(SDLMAME_MACOSX)
void *arp = NewAutoreleasePool();
#endif
// loop until we exit
for ( ;; )
{
// block waiting for work or exit
// bail on exit, and only wait if there are no pending items in queue
if (queue->exiting)
break;
if (!queue_has_list_items(queue))
{
begin_timing(thread->waittime);
osd_event_wait(thread->wakeevent, OSD_EVENT_WAIT_INFINITE);
end_timing(thread->waittime);
}
if (queue->exiting)
break;
// indicate that we are live
atomic_exchange32(&thread->active, TRUE);
atomic_increment32(&queue->livethreads);
// process work items
for ( ;; )
{
// process as much as we can
worker_thread_process(queue, thread);
// if we're a high frequency queue, spin for a while before giving up
if (queue->flags & WORK_QUEUE_FLAG_HIGH_FREQ && queue->list == NULL)
{
// spin for a while looking for more work
begin_timing(thread->spintime);
spin_while(&queue->list, (osd_work_item *)NULL, SPIN_LOOP_TIME);
end_timing(thread->spintime);
}
// if nothing more, release the processor
if (!queue_has_list_items(queue))
break;
add_to_stat(&queue->spinloops, 1);
}
// decrement the live thread count
atomic_exchange32(&thread->active, FALSE);
atomic_decrement32(&queue->livethreads);
}
#if defined(SDLMAME_MACOSX)
ReleaseAutoreleasePool(arp);
#endif
return NULL;
}
void sdl_window_info::update()
{
osd_ticks_t event_wait_ticks;
ASSERT_MAIN_THREAD();
// adjust the cursor state
//sdlwindow_update_cursor_state(machine, window);
execute_async(&update_cursor_state_wt, worker_param(this));
// if we're visible and running and not in the middle of a resize, draw
if (m_target != NULL)
{
int tempwidth, tempheight;
// see if the games video mode has changed
m_target->compute_minimum_size(tempwidth, tempheight);
if (video_config.switchres && m_fullscreen && machine().options().changeres() && machine().switchres.game.changeres)
{
switchres_resolution_change(this);
return;
}
else if (osd_dim(tempwidth, tempheight) != m_minimum_dim)
{
m_minimum_dim = osd_dim(tempwidth, tempheight);
if (!this->m_fullscreen)
{
//Don't resize window without user interaction;
//window_resize(blitwidth, blitheight);
}
else if (video_config.switchres)
{
osd_dim tmp = this->pick_best_mode();
resize(tmp.width(), tmp.height());
}
}
int got_lock = false;
got_lock = osd_lock_try(m_render_lock);
// only render if we were able to get the lock
if (got_lock)
{
// don't hold the lock; we just used it to see if rendering was still happening
osd_lock_release(m_render_lock);
// ensure the target bounds are up-to-date, and then get the primitives
render_primitive_list &primlist = *m_renderer->get_primitives();
// and redraw now
osd_event_reset(m_rendered_event);
execute_async(&draw_video_contents_wt, worker_param(this, primlist));
if (video_config.waitvsync && machine().video().throttled())
{
event_wait_ticks = osd_ticks_per_second(); // block at most a second
osd_event_wait(m_rendered_event, event_wait_ticks);
}
}
}
}