示例#1
0
/**
 * 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;
}
示例#2
0
/**
 * 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);
}