/**
* rarch_main_iterate:
*
* Run Libretro core in RetroArch for one frame.
*
* Returns: 0 on success, 1 if we have to wait until button input in order
* to wake up the loop, -1 if we forcibly quit out of the RetroArch iteration loop.
**/
int rarch_main_iterate(void)
{
unsigned i;
retro_input_t trigger_input, old_input;
event_cmd_state_t cmd = {0};
int ret = 0;
static retro_input_t last_input = 0;
driver_t *driver = driver_get_ptr();
settings_t *settings = config_get_ptr();
global_t *global = global_get_ptr();
runloop_t *runloop = rarch_main_get_ptr();
retro_input_t input = input_keys_pressed(driver, settings, global);
rarch_system_info_t *system = rarch_system_info_get_ptr();
old_input = last_input;
last_input = input;
if (driver->flushing_input)
driver->flushing_input = (input) ? input_flush(runloop, &input) : false;
trigger_input = input & ~old_input;
rarch_main_cmd_get_state(&cmd, input, old_input, trigger_input);
if (time_to_exit(driver, global, runloop, &cmd))
return rarch_main_iterate_quit(settings, global);
if (system->frame_time.callback)
rarch_update_frame_time(driver, settings, runloop);
do_pre_state_checks(settings, global, runloop, &cmd);
#ifdef HAVE_OVERLAY
rarch_main_iterate_linefeed_overlay(driver, settings);
#endif
#ifdef HAVE_MENU
if (menu_driver_alive())
{
menu_handle_t *menu = menu_driver_get_ptr();
if (menu)
if (menu_iterate(input, old_input, trigger_input) == -1)
rarch_main_set_state(RARCH_ACTION_STATE_MENU_RUNNING_FINISHED);
if (!input && settings->menu.pause_libretro)
ret = 1;
goto success;
}
#endif
if (global->exec)
{
global->exec = false;
return rarch_main_iterate_quit(settings, global);
}
if (do_state_checks(driver, settings, global, runloop, &cmd))
{
/* RetroArch has been paused */
driver->retro_ctx.poll_cb();
rarch_sleep(10);
return 1;
}
#if defined(HAVE_THREADS)
lock_autosave();
#endif
#ifdef HAVE_NETPLAY
if (driver->netplay_data)
netplay_pre_frame((netplay_t*)driver->netplay_data);
#endif
if (global->bsv.movie)
bsv_movie_set_frame_start(global->bsv.movie);
if (system->camera_callback.caps)
driver_camera_poll();
/* Update binds for analog dpad modes. */
for (i = 0; i < settings->input.max_users; i++)
{
if (!settings->input.analog_dpad_mode[i])
continue;
input_push_analog_dpad(settings->input.binds[i],
settings->input.analog_dpad_mode[i]);
input_push_analog_dpad(settings->input.autoconf_binds[i],
settings->input.analog_dpad_mode[i]);
}
if ((settings->video.frame_delay > 0) && !driver->nonblock_state)
rarch_sleep(settings->video.frame_delay);
/* Run libretro for one frame. */
pretro_run();
for (i = 0; i < settings->input.max_users; i++)
{
if (!settings->input.analog_dpad_mode[i])
continue;
input_pop_analog_dpad(settings->input.binds[i]);
input_pop_analog_dpad(settings->input.autoconf_binds[i]);
}
if (global->bsv.movie)
bsv_movie_set_frame_end(global->bsv.movie);
#ifdef HAVE_NETPLAY
if (driver->netplay_data)
netplay_post_frame((netplay_t*)driver->netplay_data);
#endif
#if defined(HAVE_THREADS)
unlock_autosave();
#endif
success:
if (settings->fastforward_ratio_throttle_enable)
rarch_limit_frame_time(settings, runloop);
return ret;
}
/**
* rarch_main_iterate:
*
* Run Libretro core in RetroArch for one frame.
*
* Returns: 0 on success, 1 if we have to wait until button input in order
* to wake up the loop, -1 if we forcibly quit out of the RetroArch iteration loop.
**/
int rarch_main_iterate(unsigned *sleep_ms)
{
unsigned i;
retro_input_t trigger_input;
event_cmd_state_t cmd;
bool do_quit = false;
static retro_input_t last_input = 0;
driver_t *driver = driver_get_ptr();
settings_t *settings = config_get_ptr();
global_t *global = global_get_ptr();
retro_input_t input = input_keys_pressed(driver, settings, global);
rarch_system_info_t *system = rarch_system_info_get_ptr();
retro_input_t old_input = last_input;
last_input = input;
if (driver->flushing_input)
{
driver->flushing_input = false;
if (input)
{
input = 0;
/* If core was paused before entering menu, evoke
* pause toggle to wake it up. */
if (main_is_paused)
BIT64_SET(input, RARCH_PAUSE_TOGGLE);
driver->flushing_input = true;
}
}
trigger_input = input & ~old_input;
rarch_main_cmd_get_state(driver, settings, &cmd, input, old_input, trigger_input);
if (time_to_exit(driver, global, system, &cmd))
do_quit = true;
if (system->frame_time.callback)
rarch_update_frame_time(driver, settings->slowmotion_ratio, system);
do_pre_state_checks(settings, global, &cmd);
#ifdef HAVE_OVERLAY
rarch_main_iterate_linefeed_overlay(driver, settings);
#endif
if (global->exec)
{
global->exec = false;
do_quit = true;
}
if (do_quit)
{
/* Quits out of RetroArch main loop.
* On special case, loads dummy core
* instead of exiting RetroArch completely.
* Aborts core shutdown if invoked.
*/
if (global->core_shutdown_initiated
&& settings->load_dummy_on_core_shutdown)
{
if (!event_command(EVENT_CMD_PREPARE_DUMMY))
return -1;
system->shutdown = false;
global->core_shutdown_initiated = false;
return 0;
}
return -1;
}
#ifdef HAVE_MENU
if (menu_driver_alive())
{
menu_handle_t *menu = menu_driver_get_ptr();
if (menu)
if (menu_iterate(true, menu_input_frame(input, trigger_input)) == -1)
rarch_main_set_state(RARCH_ACTION_STATE_MENU_RUNNING_FINISHED);
if (!input && settings->menu.pause_libretro)
return 1;
return rarch_limit_frame_time(settings->fastforward_ratio, sleep_ms);
}
#endif
if (do_state_checks(driver, settings, global, &cmd))
{
/* RetroArch has been paused. */
driver->retro_ctx.poll_cb();
*sleep_ms = 10;
return 1;
}
#if defined(HAVE_THREADS)
lock_autosave();
#endif
#ifdef HAVE_NETPLAY
if (driver->netplay_data)
netplay_pre_frame((netplay_t*)driver->netplay_data);
#endif
if (global->bsv.movie)
bsv_movie_set_frame_start(global->bsv.movie);
if (system->camera_callback.caps)
driver_camera_poll();
/* Update binds for analog dpad modes. */
for (i = 0; i < settings->input.max_users; i++)
{
if (!settings->input.analog_dpad_mode[i])
continue;
input_push_analog_dpad(settings->input.binds[i],
settings->input.analog_dpad_mode[i]);
input_push_analog_dpad(settings->input.autoconf_binds[i],
settings->input.analog_dpad_mode[i]);
}
if ((settings->video.frame_delay > 0) && !driver->nonblock_state)
rarch_sleep(settings->video.frame_delay);
/* Run libretro for one frame. */
pretro_run();
for (i = 0; i < settings->input.max_users; i++)
{
if (!settings->input.analog_dpad_mode[i])
continue;
input_pop_analog_dpad(settings->input.binds[i]);
input_pop_analog_dpad(settings->input.autoconf_binds[i]);
}
if (global->bsv.movie)
bsv_movie_set_frame_end(global->bsv.movie);
#ifdef HAVE_NETPLAY
if (driver->netplay_data)
netplay_post_frame((netplay_t*)driver->netplay_data);
#endif
#if defined(HAVE_THREADS)
unlock_autosave();
#endif
return rarch_limit_frame_time(settings->fastforward_ratio, sleep_ms);
}