/* RetroArch - A frontend for libretro. * Copyright (C) 2010-2014 - Hans-Kristian Arntzen * Copyright (C) 2011-2016 - Daniel De Matteis * Copyright (C) 2012-2015 - Michael Lelli * Copyright (C) 2014-2015 - Jay McCarthy * * RetroArch is free software: you can redistribute it and/or modify it under the terms * of the GNU General Public License as published by the Free Software Found- * ation, either version 3 of the License, or (at your option) any later version. * * RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR * PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with RetroArch. * If not, see . */ #include #include #include #include #include #include #include #ifdef HAVE_THREADS #include #endif #include #include #include #include #ifdef HAVE_CHEEVOS #include "cheevos.h" #endif #include "autosave.h" #include "core_info.h" #include "configuration.h" #include "movie.h" #include "retroarch.h" #include "runloop.h" #include "file_path_special.h" #include "managers/core_option_manager.h" #include "managers/cheat_manager.h" #include "managers/state_manager.h" #include "system.h" #include "list_special.h" #include "audio/audio_driver.h" #include "camera/camera_driver.h" #include "record/record_driver.h" #include "input/input_driver.h" #include "ui/ui_companion_driver.h" #include "core.h" #include "msg_hash.h" #include "input/input_keyboard.h" #include "tasks/tasks_internal.h" #ifdef HAVE_MENU #include "menu/menu_driver.h" #endif #ifdef HAVE_NETPLAY #include "network/netplay/netplay.h" #endif #if defined(HAVE_HTTPSERVER) && defined(HAVE_ZLIB) #include "httpserver/httpserver.h" #endif #include "verbosity.h" #ifdef HAVE_ZLIB #define DEFAULT_EXT "zip" #else #define DEFAULT_EXT "" #endif #define runloop_cmd_triggered(cmd, id) BIT64_GET(cmd->state[2].state, id) #define runloop_cmd_press(cmd, id) BIT64_GET(cmd->state[0].state, id) #define runloop_cmd_pressed(cmd, id) BIT64_GET(cmd->state[1].state, id) #ifdef HAVE_MENU #define runloop_cmd_menu_press(cmd) (BIT64_GET(cmd->state[2].state, RARCH_MENU_TOGGLE) || \ runloop_cmd_get_state_menu_toggle_button_combo( \ settings, cmd->state[0], \ cmd->state[1], cmd->state[2])) #endif struct rarch_dir_list { struct string_list *list; size_t ptr; }; typedef struct event_cmd_state { retro_input_t state[3]; } event_cmd_state_t; static rarch_dir_list_t runloop_shader_dir; static char runloop_fullpath[PATH_MAX_LENGTH]; static char runloop_default_shader_preset[PATH_MAX_LENGTH]; static rarch_system_info_t runloop_system; static unsigned runloop_pending_windowed_scale; static struct retro_frame_time_callback runloop_frame_time; static retro_keyboard_event_t runloop_key_event = NULL; static retro_keyboard_event_t runloop_frontend_key_event = NULL; static retro_usec_t runloop_frame_time_last = 0; static unsigned runloop_max_frames = false; static bool runloop_force_nonblock = false; static bool runloop_frame_time_last_enable = false; static bool runloop_set_frame_limit = false; static bool runloop_paused = false; static bool runloop_idle = false; static bool runloop_exec = false; static bool runloop_slowmotion = false; static bool runloop_shutdown_initiated = false; static bool runloop_core_shutdown_initiated = false; static bool runloop_perfcnt_enable = false; static bool runloop_overrides_active = false; static bool runloop_game_options_active = false; static core_option_manager_t *runloop_core_options = NULL; #ifdef HAVE_THREADS static slock_t *_runloop_msg_queue_lock = NULL; #endif static msg_queue_t *runloop_msg_queue = NULL; global_t *global_get_ptr(void) { static struct global g_extern; return &g_extern; } static void runloop_msg_queue_lock(void) { #ifdef HAVE_THREADS slock_lock(_runloop_msg_queue_lock); #endif } static void runloop_msg_queue_unlock(void) { #ifdef HAVE_THREADS slock_unlock(_runloop_msg_queue_lock); #endif } static bool runloop_msg_queue_push_internal(runloop_ctx_msg_info_t *msg_info) { if (!msg_info || !runloop_msg_queue) return false; msg_queue_push(runloop_msg_queue, msg_info->msg, msg_info->prio, msg_info->duration); if (ui_companion_is_on_foreground()) { const ui_companion_driver_t *ui = ui_companion_get_ptr(); if (ui->msg_queue_push) ui->msg_queue_push(msg_info->msg, msg_info->prio, msg_info->duration, msg_info->flush); } return true; } void runloop_msg_queue_push(const char *msg, unsigned prio, unsigned duration, bool flush) { runloop_ctx_msg_info_t msg_info; settings_t *settings = config_get_ptr(); if(!settings->video.font_enable) return; runloop_msg_queue_lock(); if (flush) runloop_ctl(RUNLOOP_CTL_MSG_QUEUE_CLEAR, NULL); msg_info.msg = msg; msg_info.prio = prio; msg_info.duration = duration; msg_info.flush = flush; runloop_msg_queue_push_internal(&msg_info); runloop_msg_queue_unlock(); } char* runloop_msg_queue_pull(void) { runloop_ctx_msg_info_t msg_info; runloop_ctl(RUNLOOP_CTL_MSG_QUEUE_PULL, &msg_info); return strdup(msg_info.msg); } /* Checks if movie is being played back. */ static bool runloop_check_movie_playback(void) { if (!bsv_movie_ctl(BSV_MOVIE_CTL_END, NULL)) return false; runloop_msg_queue_push( msg_hash_to_str(MSG_MOVIE_PLAYBACK_ENDED), 2, 180, false); RARCH_LOG("%s\n", msg_hash_to_str(MSG_MOVIE_PLAYBACK_ENDED)); command_event(CMD_EVENT_BSV_MOVIE_DEINIT, NULL); bsv_movie_ctl(BSV_MOVIE_CTL_UNSET_END, NULL); bsv_movie_ctl(BSV_MOVIE_CTL_UNSET_PLAYBACK, NULL); return true; } /* Checks if movie is being recorded. */ static bool runloop_check_movie_record(void) { if (!bsv_movie_ctl(BSV_MOVIE_CTL_IS_INITED, NULL)) return false; runloop_msg_queue_push( msg_hash_to_str(MSG_MOVIE_RECORD_STOPPED), 2, 180, true); RARCH_LOG("%s\n", msg_hash_to_str(MSG_MOVIE_RECORD_STOPPED)); command_event(CMD_EVENT_BSV_MOVIE_DEINIT, NULL); return true; } static bool runloop_check_movie_init(void) { char msg[128] = {0}; char path[PATH_MAX_LENGTH] = {0}; settings_t *settings = config_get_ptr(); if (bsv_movie_ctl(BSV_MOVIE_CTL_IS_INITED, NULL)) return false; settings->rewind_granularity = 1; if (settings->state_slot > 0) snprintf(path, sizeof(path), "%s%d", bsv_movie_get_path(), settings->state_slot); else strlcpy(path, bsv_movie_get_path(), sizeof(path)); strlcat(path, file_path_str(FILE_PATH_BSV_EXTENSION), sizeof(path)); snprintf(msg, sizeof(msg), "%s \"%s\".", msg_hash_to_str(MSG_STARTING_MOVIE_RECORD_TO), path); bsv_movie_init_handle(path, RARCH_MOVIE_RECORD); if (!bsv_movie_ctl(BSV_MOVIE_CTL_IS_INITED, NULL)) return false; if (bsv_movie_ctl(BSV_MOVIE_CTL_IS_INITED, NULL)) { runloop_msg_queue_push(msg, 2, 180, true); RARCH_LOG("%s \"%s\".\n", msg_hash_to_str(MSG_STARTING_MOVIE_RECORD_TO), path); } else { runloop_msg_queue_push( msg_hash_to_str(MSG_FAILED_TO_START_MOVIE_RECORD), 2, 180, true); RARCH_ERR("%s\n", msg_hash_to_str(MSG_FAILED_TO_START_MOVIE_RECORD)); } return true; } static bool runloop_check_movie(void) { if (bsv_movie_ctl(BSV_MOVIE_CTL_PLAYBACK_ON, NULL)) return runloop_check_movie_playback(); if (!bsv_movie_ctl(BSV_MOVIE_CTL_IS_INITED, NULL)) return runloop_check_movie_init(); return runloop_check_movie_record(); } /* Checks if slowmotion toggle/hold was being pressed and/or held. */ static bool runloop_check_slowmotion(bool *ptr) { settings_t *settings = config_get_ptr(); if (!ptr) return false; runloop_slowmotion = *ptr; if (!runloop_slowmotion) return false; if (settings->video.black_frame_insertion) video_driver_cached_frame_render(); if (state_manager_frame_is_reversed()) runloop_msg_queue_push(msg_hash_to_str(MSG_SLOW_MOTION_REWIND), 2, 30, true); else runloop_msg_queue_push(msg_hash_to_str(MSG_SLOW_MOTION), 2, 30, true); return true; } #ifdef HAVE_MENU static bool runloop_cmd_get_state_menu_toggle_button_combo( settings_t *settings, retro_input_t input, retro_input_t old_input, retro_input_t trigger_input) { switch (settings->input.menu_toggle_gamepad_combo) { case INPUT_TOGGLE_NONE: return false; case INPUT_TOGGLE_DOWN_Y_L_R: if (!BIT64_GET(input.state, RETRO_DEVICE_ID_JOYPAD_DOWN)) return false; if (!BIT64_GET(input.state, RETRO_DEVICE_ID_JOYPAD_Y)) return false; if (!BIT64_GET(input.state, RETRO_DEVICE_ID_JOYPAD_L)) return false; if (!BIT64_GET(input.state, RETRO_DEVICE_ID_JOYPAD_R)) return false; break; case INPUT_TOGGLE_L3_R3: if (!BIT64_GET(input.state, RETRO_DEVICE_ID_JOYPAD_L3)) return false; if (!BIT64_GET(input.state, RETRO_DEVICE_ID_JOYPAD_R3)) return false; break; case INPUT_TOGGLE_L1_R1_START_SELECT: if (!BIT64_GET(input.state, RETRO_DEVICE_ID_JOYPAD_START)) return false; if (!BIT64_GET(input.state, RETRO_DEVICE_ID_JOYPAD_SELECT)) return false; if (!BIT64_GET(input.state, RETRO_DEVICE_ID_JOYPAD_L)) return false; if (!BIT64_GET(input.state, RETRO_DEVICE_ID_JOYPAD_R)) return false; break; case INPUT_TOGGLE_START_SELECT: if (!BIT64_GET(input.state, RETRO_DEVICE_ID_JOYPAD_START)) return false; if (!BIT64_GET(input.state, RETRO_DEVICE_ID_JOYPAD_SELECT)) return false; break; } input_driver_set_flushing_input(); return true; } #endif /** * runloop_check_pause: * @pressed : was libretro pause key pressed? * @frameadvance_pressed : was frameadvance key pressed? * * Check if libretro pause key was pressed. If so, pause or * unpause the libretro core. * * Returns: true if libretro pause key was toggled, otherwise false. **/ static bool runloop_check_pause(settings_t *settings, bool focus, bool pause_pressed, bool frameadvance_pressed) { static bool old_focus = true; enum event_command cmd = CMD_EVENT_NONE; bool old_is_paused = runloop_ctl(RUNLOOP_CTL_IS_PAUSED, NULL); /* FRAMEADVANCE will set us into pause mode. */ pause_pressed |= !old_is_paused && frameadvance_pressed; if (focus && pause_pressed) cmd = CMD_EVENT_PAUSE_TOGGLE; else if (focus && !old_focus) cmd = CMD_EVENT_UNPAUSE; else if (!focus && old_focus) cmd = CMD_EVENT_PAUSE; old_focus = focus; if (cmd != CMD_EVENT_NONE) command_event(cmd, NULL); if (runloop_ctl(RUNLOOP_CTL_IS_PAUSED, NULL) == old_is_paused) return false; return true; } /** * runloop_check_fast_forward_button: * @fastforward_pressed : is fastforward key pressed? * @hold_pressed : is fastforward key pressed and held? * @old_hold_pressed : was fastforward key pressed and held the last frame? * * Checks if the fast forward key has been pressed for this frame. * **/ static void runloop_check_fast_forward_button(bool fastforward_pressed, bool hold_pressed, bool old_hold_pressed) { /* To avoid continous switching if we hold the button down, we require * that the button must go from pressed to unpressed back to pressed * to be able to toggle between then. */ if (fastforward_pressed) { if (input_driver_is_nonblock_state()) input_driver_unset_nonblock_state(); else input_driver_set_nonblock_state(); } else if (old_hold_pressed != hold_pressed) { if (hold_pressed) input_driver_set_nonblock_state(); else input_driver_unset_nonblock_state(); } else return; driver_ctl(RARCH_DRIVER_CTL_SET_NONBLOCK_STATE, NULL); } /** * runloop_check_stateslots: * @pressed_increase : is state slot increase key pressed? * @pressed_decrease : is state slot decrease key pressed? * * Checks if the state increase/decrease keys have been pressed * for this frame. **/ static void runloop_check_stateslots(settings_t *settings, bool pressed_increase, bool pressed_decrease) { char msg[128] = {0}; /* Save state slots */ if (pressed_increase) settings->state_slot++; else if (pressed_decrease) { if (settings->state_slot > 0) settings->state_slot--; } else return; snprintf(msg, sizeof(msg), "%s: %d", msg_hash_to_str(MSG_STATE_SLOT), settings->state_slot); runloop_msg_queue_push(msg, 2, 180, true); RARCH_LOG("%s\n", msg); } static void shader_dir_free(rarch_dir_list_t *dir_list) { if (!dir_list) return; dir_list_free(dir_list->list); dir_list->list = NULL; dir_list->ptr = 0; } static bool shader_dir_init(rarch_dir_list_t *dir_list) { unsigned i; settings_t *settings = config_get_ptr(); if (!*settings->directory.video_shader) return false; dir_list->list = dir_list_new_special(settings->directory.video_shader, DIR_LIST_SHADERS, NULL); if (!dir_list->list || dir_list->list->size == 0) { command_event(CMD_EVENT_SHADER_DIR_DEINIT, NULL); return false; } dir_list->ptr = 0; dir_list_sort(dir_list->list, false); for (i = 0; i < dir_list->list->size; i++) RARCH_LOG("%s \"%s\"\n", msg_hash_to_str(MSG_FOUND_SHADER), dir_list->list->elems[i].data); return true; } /** * runloop_check_shader_dir: * @pressed_next : was next shader key pressed? * @pressed_previous : was previous shader key pressed? * * Checks if any one of the shader keys has been pressed for this frame: * a) Next shader index. * b) Previous shader index. * * Will also immediately apply the shader. **/ static void runloop_check_shader_dir(rarch_dir_list_t *dir_list, bool pressed_next, bool pressed_prev) { char msg[128] = {0}; const char *shader = NULL; enum rarch_shader_type type = RARCH_SHADER_NONE; if (!dir_list || !dir_list->list) return; if (pressed_next) { dir_list->ptr = (dir_list->ptr + 1) % dir_list->list->size; } else if (pressed_prev) { if (dir_list->ptr == 0) dir_list->ptr = dir_list->list->size - 1; else dir_list->ptr--; } else return; shader = dir_list->list->elems[dir_list->ptr].data; switch (msg_hash_to_file_type(msg_hash_calculate(path_get_extension(shader)))) { case FILE_TYPE_SHADER_GLSL: case FILE_TYPE_SHADER_PRESET_GLSLP: type = RARCH_SHADER_GLSL; break; case FILE_TYPE_SHADER_SLANG: case FILE_TYPE_SHADER_PRESET_SLANGP: type = RARCH_SHADER_SLANG; break; case FILE_TYPE_SHADER_CG: case FILE_TYPE_SHADER_PRESET_CGP: type = RARCH_SHADER_CG; break; default: return; } snprintf(msg, sizeof(msg), "%s #%u: \"%s\".", msg_hash_to_str(MSG_SHADER), (unsigned)dir_list->ptr, shader); runloop_msg_queue_push(msg, 2, 120, true); RARCH_LOG("%s \"%s\".\n", msg_hash_to_str(MSG_APPLYING_SHADER), shader); if (!video_driver_set_shader(type, shader)) RARCH_WARN("%s\n", msg_hash_to_str(MSG_FAILED_TO_APPLY_SHADER)); } /** * rarch_game_specific_options: * * Returns: true (1) if a game specific core * options path has been found, * otherwise false (0). **/ static bool rarch_game_specific_options(char **output) { char game_path[PATH_MAX_LENGTH] = {0}; config_file_t *option_file = NULL; if (!retroarch_validate_game_options(game_path, sizeof(game_path), false)) return false; option_file = config_file_new(game_path); if (!option_file) return false; config_file_free(option_file); RARCH_LOG("%s %s\n", msg_hash_to_str(MSG_GAME_SPECIFIC_CORE_OPTIONS_FOUND_AT), game_path); *output = strdup(game_path); return true; } static bool runloop_is_focused(void) { settings_t *settings = config_get_ptr(); if (settings->pause_nonactive) return video_driver_is_focused(); return true; } static bool runloop_check_pause_state(event_cmd_state_t *cmd) { bool check_is_oneshot = false; if (!cmd) return false; check_is_oneshot = runloop_cmd_triggered(cmd, RARCH_FRAMEADVANCE) || runloop_cmd_press(cmd, RARCH_REWIND); if (!runloop_ctl(RUNLOOP_CTL_IS_PAUSED, NULL)) return true; if (runloop_cmd_triggered(cmd, RARCH_FULLSCREEN_TOGGLE_KEY)) { command_event(CMD_EVENT_FULLSCREEN_TOGGLE, NULL); video_driver_cached_frame_render(); } if (!check_is_oneshot) return false; return true; } static bool runloop_check_idle_state(event_cmd_state_t *cmd) { settings_t *settings = config_get_ptr(); bool focused = runloop_is_focused(); runloop_check_pause(settings, focused, runloop_cmd_triggered(cmd, RARCH_PAUSE_TOGGLE), runloop_cmd_triggered(cmd, RARCH_FRAMEADVANCE)); if (!runloop_check_pause_state(cmd) || !focused) return false; return true; } static bool runloop_check_state(event_cmd_state_t *cmd, rarch_dir_list_t *shader_dir) { bool tmp = false; settings_t *settings = config_get_ptr(); if (!cmd || runloop_ctl(RUNLOOP_CTL_IS_IDLE, NULL)) return false; if (runloop_cmd_triggered(cmd, RARCH_SCREENSHOT)) command_event(CMD_EVENT_TAKE_SCREENSHOT, NULL); if (runloop_cmd_triggered(cmd, RARCH_MUTE)) command_event(CMD_EVENT_AUDIO_MUTE_TOGGLE, NULL); if (runloop_cmd_triggered(cmd, RARCH_OSK)) { if (input_keyboard_ctl( RARCH_INPUT_KEYBOARD_CTL_IS_LINEFEED_ENABLED, NULL)) input_keyboard_ctl( RARCH_INPUT_KEYBOARD_CTL_UNSET_LINEFEED_ENABLED, NULL); else input_keyboard_ctl( RARCH_INPUT_KEYBOARD_CTL_SET_LINEFEED_ENABLED, NULL); } if (runloop_cmd_press(cmd, RARCH_VOLUME_UP)) command_event(CMD_EVENT_VOLUME_UP, NULL); else if (runloop_cmd_press(cmd, RARCH_VOLUME_DOWN)) command_event(CMD_EVENT_VOLUME_DOWN, NULL); #ifdef HAVE_NETPLAY tmp = runloop_cmd_triggered(cmd, RARCH_NETPLAY_FLIP); netplay_driver_ctl(RARCH_NETPLAY_CTL_FLIP_PLAYERS, &tmp); tmp = runloop_cmd_triggered(cmd, RARCH_FULLSCREEN_TOGGLE_KEY); netplay_driver_ctl(RARCH_NETPLAY_CTL_FULLSCREEN_TOGGLE, &tmp); #endif if (!runloop_check_idle_state(cmd)) return false; runloop_check_fast_forward_button( runloop_cmd_triggered(cmd, RARCH_FAST_FORWARD_KEY), runloop_cmd_press (cmd, RARCH_FAST_FORWARD_HOLD_KEY), runloop_cmd_pressed (cmd, RARCH_FAST_FORWARD_HOLD_KEY)); runloop_check_stateslots(settings, runloop_cmd_triggered(cmd, RARCH_STATE_SLOT_PLUS), runloop_cmd_triggered(cmd, RARCH_STATE_SLOT_MINUS) ); if (runloop_cmd_triggered(cmd, RARCH_SAVE_STATE_KEY)) command_event(CMD_EVENT_SAVE_STATE, NULL); else if (runloop_cmd_triggered(cmd, RARCH_LOAD_STATE_KEY)) command_event(CMD_EVENT_LOAD_STATE, NULL); #ifdef HAVE_CHEEVOS if(!settings->cheevos.hardcore_mode_enable) #endif state_manager_check_rewind(runloop_cmd_press(cmd, RARCH_REWIND)); tmp = runloop_cmd_press(cmd, RARCH_SLOWMOTION); runloop_check_slowmotion(&tmp); if (runloop_cmd_triggered(cmd, RARCH_MOVIE_RECORD_TOGGLE)) runloop_check_movie(); if (runloop_cmd_triggered(cmd, RARCH_SHADER_NEXT) || runloop_cmd_triggered(cmd, RARCH_SHADER_PREV)) { runloop_check_shader_dir(shader_dir, runloop_cmd_triggered(cmd, RARCH_SHADER_NEXT), runloop_cmd_triggered(cmd, RARCH_SHADER_PREV)); } if (runloop_cmd_triggered(cmd, RARCH_DISK_EJECT_TOGGLE)) command_event(CMD_EVENT_DISK_EJECT_TOGGLE, NULL); else if (runloop_cmd_triggered(cmd, RARCH_DISK_NEXT)) command_event(CMD_EVENT_DISK_NEXT, NULL); else if (runloop_cmd_triggered(cmd, RARCH_DISK_PREV)) command_event(CMD_EVENT_DISK_PREV, NULL); if (runloop_cmd_triggered(cmd, RARCH_RESET)) command_event(CMD_EVENT_RESET, NULL); cheat_manager_state_checks( runloop_cmd_triggered(cmd, RARCH_CHEAT_INDEX_PLUS), runloop_cmd_triggered(cmd, RARCH_CHEAT_INDEX_MINUS), runloop_cmd_triggered(cmd, RARCH_CHEAT_TOGGLE)); return true; } static bool runloop_is_frame_count_end(void) { uint64_t *frame_count = video_driver_get_frame_count_ptr(); return runloop_max_frames && (*frame_count >= runloop_max_frames); } bool runloop_ctl(enum runloop_ctl_state state, void *data) { switch (state) { case RUNLOOP_CTL_SHADER_DIR_DEINIT: shader_dir_free(&runloop_shader_dir); break; case RUNLOOP_CTL_SHADER_DIR_INIT: return shader_dir_init(&runloop_shader_dir); case RUNLOOP_CTL_SYSTEM_INFO_INIT: core_get_system_info(&runloop_system.info); if (!runloop_system.info.library_name) runloop_system.info.library_name = msg_hash_to_str(MSG_UNKNOWN); if (!runloop_system.info.library_version) runloop_system.info.library_version = "v0"; video_driver_set_title_buf(); strlcpy(runloop_system.valid_extensions, runloop_system.info.valid_extensions ? runloop_system.info.valid_extensions : DEFAULT_EXT, sizeof(runloop_system.valid_extensions)); break; case RUNLOOP_CTL_GET_CORE_OPTION_SIZE: { unsigned *idx = (unsigned*)data; if (!idx) return false; *idx = core_option_manager_size(runloop_core_options); } break; case RUNLOOP_CTL_HAS_CORE_OPTIONS: return runloop_core_options; case RUNLOOP_CTL_CORE_OPTIONS_LIST_GET: { core_option_manager_t **coreopts = (core_option_manager_t**)data; if (!coreopts) return false; *coreopts = runloop_core_options; } break; case RUNLOOP_CTL_SYSTEM_INFO_GET: { rarch_system_info_t **system = (rarch_system_info_t**)data; if (!system) return false; *system = &runloop_system; } break; case RUNLOOP_CTL_SYSTEM_INFO_FREE: /* No longer valid. */ if (runloop_system.subsystem.data) free(runloop_system.subsystem.data); runloop_system.subsystem.data = NULL; runloop_system.subsystem.size = 0; if (runloop_system.ports.data) free(runloop_system.ports.data); runloop_system.ports.data = NULL; runloop_system.ports.size = 0; if (runloop_system.mmaps.descriptors) free((void *)runloop_system.mmaps.descriptors); runloop_system.mmaps.descriptors = NULL; runloop_system.mmaps.num_descriptors = 0; runloop_key_event = NULL; runloop_frontend_key_event = NULL; audio_driver_unset_callback(); memset(&runloop_system, 0, sizeof(rarch_system_info_t)); break; case RUNLOOP_CTL_SET_FRAME_TIME_LAST: runloop_frame_time_last_enable = true; break; case RUNLOOP_CTL_UNSET_FRAME_TIME_LAST: if (!runloop_ctl(RUNLOOP_CTL_IS_FRAME_TIME_LAST, NULL)) return false; runloop_frame_time_last = 0; runloop_frame_time_last_enable = false; break; case RUNLOOP_CTL_SET_OVERRIDES_ACTIVE: runloop_overrides_active = true; break; case RUNLOOP_CTL_UNSET_OVERRIDES_ACTIVE: runloop_overrides_active = false; break; case RUNLOOP_CTL_IS_OVERRIDES_ACTIVE: return runloop_overrides_active; case RUNLOOP_CTL_SET_GAME_OPTIONS_ACTIVE: runloop_game_options_active = true; break; case RUNLOOP_CTL_UNSET_GAME_OPTIONS_ACTIVE: runloop_game_options_active = false; break; case RUNLOOP_CTL_IS_GAME_OPTIONS_ACTIVE: return runloop_game_options_active; case RUNLOOP_CTL_IS_FRAME_TIME_LAST: return runloop_frame_time_last_enable; case RUNLOOP_CTL_SET_FRAME_LIMIT: runloop_set_frame_limit = true; break; case RUNLOOP_CTL_UNSET_FRAME_LIMIT: runloop_set_frame_limit = false; break; case RUNLOOP_CTL_SHOULD_SET_FRAME_LIMIT: return runloop_set_frame_limit; case RUNLOOP_CTL_GET_PERFCNT: { bool **perfcnt = (bool**)data; if (!perfcnt) return false; *perfcnt = &runloop_perfcnt_enable; } break; case RUNLOOP_CTL_SET_PERFCNT_ENABLE: runloop_perfcnt_enable = true; break; case RUNLOOP_CTL_UNSET_PERFCNT_ENABLE: runloop_perfcnt_enable = false; break; case RUNLOOP_CTL_IS_PERFCNT_ENABLE: return runloop_perfcnt_enable; case RUNLOOP_CTL_SET_NONBLOCK_FORCED: runloop_force_nonblock = true; break; case RUNLOOP_CTL_UNSET_NONBLOCK_FORCED: runloop_force_nonblock = false; break; case RUNLOOP_CTL_IS_NONBLOCK_FORCED: return runloop_force_nonblock; case RUNLOOP_CTL_SET_FRAME_TIME: { const struct retro_frame_time_callback *info = (const struct retro_frame_time_callback*)data; #ifdef HAVE_NETPLAY global_t *global = global_get_ptr(); /* retro_run() will be called in very strange and * mysterious ways, have to disable it. */ if (global->netplay.enable) return false; #endif runloop_frame_time = *info; } break; case RUNLOOP_CTL_GET_WINDOWED_SCALE: { unsigned **scale = (unsigned**)data; if (!scale) return false; *scale = (unsigned*)&runloop_pending_windowed_scale; } break; case RUNLOOP_CTL_SET_WINDOWED_SCALE: { unsigned *idx = (unsigned*)data; if (!idx) return false; runloop_pending_windowed_scale = *idx; } break; case RUNLOOP_CTL_SET_LIBRETRO_PATH: { const char *fullpath = (const char*)data; if (!fullpath) return false; config_set_active_core_path(fullpath); } break; case RUNLOOP_CTL_CLEAR_CONTENT_PATH: *runloop_fullpath = '\0'; break; case RUNLOOP_CTL_GET_CONTENT_PATH: { char **fullpath = (char**)data; if (!fullpath) return false; *fullpath = (char*)runloop_fullpath; } break; case RUNLOOP_CTL_SET_CONTENT_PATH: { const char *fullpath = (const char*)data; if (!fullpath) return false; strlcpy(runloop_fullpath, fullpath, sizeof(runloop_fullpath)); } break; case RUNLOOP_CTL_CLEAR_DEFAULT_SHADER_PRESET: *runloop_default_shader_preset = '\0'; break; case RUNLOOP_CTL_GET_DEFAULT_SHADER_PRESET: { char **preset = (char**)data; if (!preset) return false; *preset = (char*)runloop_default_shader_preset; } break; case RUNLOOP_CTL_SET_DEFAULT_SHADER_PRESET: { const char *preset = (const char*)data; if (!preset) return false; strlcpy(runloop_default_shader_preset, preset, sizeof(runloop_default_shader_preset)); } break; case RUNLOOP_CTL_FRAME_TIME_FREE: memset(&runloop_frame_time, 0, sizeof(struct retro_frame_time_callback)); runloop_frame_time_last = 0; runloop_max_frames = 0; break; case RUNLOOP_CTL_STATE_FREE: runloop_perfcnt_enable = false; runloop_idle = false; runloop_paused = false; runloop_slowmotion = false; runloop_frame_time_last_enable = false; runloop_set_frame_limit = false; runloop_overrides_active = false; runloop_ctl(RUNLOOP_CTL_FRAME_TIME_FREE, NULL); break; case RUNLOOP_CTL_GLOBAL_FREE: { global_t *global = NULL; command_event(CMD_EVENT_TEMPORARY_CONTENT_DEINIT, NULL); command_event(CMD_EVENT_SUBSYSTEM_FULLPATHS_DEINIT, NULL); command_event(CMD_EVENT_RECORD_DEINIT, NULL); command_event(CMD_EVENT_LOG_FILE_DEINIT, NULL); rarch_ctl(RARCH_CTL_UNSET_BLOCK_CONFIG_READ, NULL); runloop_ctl(RUNLOOP_CTL_CLEAR_CONTENT_PATH, NULL); runloop_overrides_active = false; core_unset_input_descriptors(); global = global_get_ptr(); memset(global, 0, sizeof(struct global)); retroarch_override_setting_free_state(); config_free_state(); } break; case RUNLOOP_CTL_CLEAR_STATE: driver_ctl(RARCH_DRIVER_CTL_DEINIT, NULL); runloop_ctl(RUNLOOP_CTL_STATE_FREE, NULL); runloop_ctl(RUNLOOP_CTL_GLOBAL_FREE, NULL); break; case RUNLOOP_CTL_SET_MAX_FRAMES: { unsigned *ptr = (unsigned*)data; if (!ptr) return false; runloop_max_frames = *ptr; } break; case RUNLOOP_CTL_IS_IDLE: return runloop_idle; case RUNLOOP_CTL_SET_IDLE: { bool *ptr = (bool*)data; if (!ptr) return false; runloop_idle = *ptr; } break; case RUNLOOP_CTL_IS_SLOWMOTION: return runloop_slowmotion; case RUNLOOP_CTL_SET_SLOWMOTION: { bool *ptr = (bool*)data; if (!ptr) return false; runloop_slowmotion = *ptr; } break; case RUNLOOP_CTL_SET_PAUSED: { bool *ptr = (bool*)data; if (!ptr) return false; runloop_paused = *ptr; } break; case RUNLOOP_CTL_IS_PAUSED: return runloop_paused; case RUNLOOP_CTL_MSG_QUEUE_PULL: runloop_msg_queue_lock(); { const char **ret = (const char**)data; if (!ret) return false; *ret = msg_queue_pull(runloop_msg_queue); } runloop_msg_queue_unlock(); break; case RUNLOOP_CTL_MSG_QUEUE_FREE: #ifdef HAVE_THREADS slock_free(_runloop_msg_queue_lock); _runloop_msg_queue_lock = NULL; #endif break; case RUNLOOP_CTL_MSG_QUEUE_CLEAR: msg_queue_clear(runloop_msg_queue); break; case RUNLOOP_CTL_MSG_QUEUE_DEINIT: if (!runloop_msg_queue) return true; runloop_msg_queue_lock(); msg_queue_free(runloop_msg_queue); runloop_msg_queue_unlock(); runloop_ctl(RUNLOOP_CTL_MSG_QUEUE_FREE, NULL); runloop_msg_queue = NULL; break; case RUNLOOP_CTL_MSG_QUEUE_INIT: runloop_ctl(RUNLOOP_CTL_MSG_QUEUE_DEINIT, NULL); runloop_msg_queue = msg_queue_new(8); retro_assert(runloop_msg_queue); #ifdef HAVE_THREADS _runloop_msg_queue_lock = slock_new(); retro_assert(_runloop_msg_queue_lock); #endif break; case RUNLOOP_CTL_TASK_INIT: { #ifdef HAVE_THREADS settings_t *settings = config_get_ptr(); bool threaded_enable = settings->threaded_data_runloop_enable; #else bool threaded_enable = false; #endif task_queue_ctl(TASK_QUEUE_CTL_DEINIT, NULL); task_queue_ctl(TASK_QUEUE_CTL_INIT, &threaded_enable); } break; case RUNLOOP_CTL_SET_CORE_SHUTDOWN: runloop_core_shutdown_initiated = true; break; case RUNLOOP_CTL_UNSET_CORE_SHUTDOWN: runloop_core_shutdown_initiated = false; break; case RUNLOOP_CTL_IS_CORE_SHUTDOWN: return runloop_core_shutdown_initiated; case RUNLOOP_CTL_SET_SHUTDOWN: runloop_shutdown_initiated = true; break; case RUNLOOP_CTL_UNSET_SHUTDOWN: runloop_shutdown_initiated = false; break; case RUNLOOP_CTL_IS_SHUTDOWN: return runloop_shutdown_initiated; case RUNLOOP_CTL_SET_EXEC: runloop_exec = true; break; case RUNLOOP_CTL_UNSET_EXEC: runloop_exec = false; break; case RUNLOOP_CTL_IS_EXEC: return runloop_exec; case RUNLOOP_CTL_DATA_DEINIT: task_queue_ctl(TASK_QUEUE_CTL_DEINIT, NULL); break; case RUNLOOP_CTL_IS_CORE_OPTION_UPDATED: if (!runloop_core_options) return false; return core_option_manager_updated(runloop_core_options); case RUNLOOP_CTL_CORE_OPTION_PREV: { unsigned *idx = (unsigned*)data; if (!idx) return false; core_option_manager_prev(runloop_core_options, *idx); if (ui_companion_is_on_foreground()) ui_companion_driver_notify_refresh(); } break; case RUNLOOP_CTL_CORE_OPTION_NEXT: { unsigned *idx = (unsigned*)data; if (!idx) return false; core_option_manager_next(runloop_core_options, *idx); if (ui_companion_is_on_foreground()) ui_companion_driver_notify_refresh(); } break; case RUNLOOP_CTL_CORE_OPTIONS_GET: { struct retro_variable *var = (struct retro_variable*)data; if (!runloop_core_options || !var) return false; RARCH_LOG("Environ GET_VARIABLE %s:\n", var->key); core_option_manager_get(runloop_core_options, var); RARCH_LOG("\t%s\n", var->value ? var->value : msg_hash_to_str(MENU_ENUM_LABEL_VALUE_NOT_AVAILABLE)); } break; case RUNLOOP_CTL_CORE_OPTIONS_INIT: { char *game_options_path = NULL; bool ret = false; char buf[PATH_MAX_LENGTH] = {0}; global_t *global = global_get_ptr(); settings_t *settings = config_get_ptr(); const char *options_path = settings->path.core_options; const struct retro_variable *vars = (const struct retro_variable*)data; if (string_is_empty(options_path) && !string_is_empty(global->path.config)) { fill_pathname_resolve_relative(buf, global->path.config, file_path_str(FILE_PATH_CORE_OPTIONS_CONFIG), sizeof(buf)); options_path = buf; } if (settings->game_specific_options) ret = rarch_game_specific_options(&game_options_path); if(ret) { runloop_ctl(RUNLOOP_CTL_SET_GAME_OPTIONS_ACTIVE, NULL); runloop_core_options = core_option_manager_new(game_options_path, vars); free(game_options_path); } else { runloop_ctl(RUNLOOP_CTL_UNSET_GAME_OPTIONS_ACTIVE, NULL); runloop_core_options = core_option_manager_new(options_path, vars); } } break; case RUNLOOP_CTL_CORE_OPTIONS_FREE: if (runloop_core_options) core_option_manager_free(runloop_core_options); runloop_core_options = NULL; break; case RUNLOOP_CTL_CORE_OPTIONS_DEINIT: { global_t *global = global_get_ptr(); if (!runloop_core_options) return false; /* check if game options file was just created and flush to that file instead */ if(global && !string_is_empty(global->path.core_options_path)) { core_option_manager_flush_game_specific(runloop_core_options, global->path.core_options_path); global->path.core_options_path[0] = '\0'; } else core_option_manager_flush(runloop_core_options); if (runloop_ctl(RUNLOOP_CTL_IS_GAME_OPTIONS_ACTIVE, NULL)) runloop_ctl(RUNLOOP_CTL_UNSET_GAME_OPTIONS_ACTIVE, NULL); runloop_ctl(RUNLOOP_CTL_CORE_OPTIONS_FREE, NULL); } break; case RUNLOOP_CTL_KEY_EVENT_GET: { retro_keyboard_event_t **key_event = (retro_keyboard_event_t**)data; if (!key_event) return false; *key_event = &runloop_key_event; } break; case RUNLOOP_CTL_FRONTEND_KEY_EVENT_GET: { retro_keyboard_event_t **key_event = (retro_keyboard_event_t**)data; if (!key_event) return false; *key_event = &runloop_frontend_key_event; } break; case RUNLOOP_CTL_HTTPSERVER_INIT: #if defined(HAVE_HTTPSERVER) && defined(HAVE_ZLIB) httpserver_init(8888); #endif break; case RUNLOOP_CTL_HTTPSERVER_DESTROY: #if defined(HAVE_HTTPSERVER) && defined(HAVE_ZLIB) httpserver_destroy(); #endif break; case RUNLOOP_CTL_NONE: default: break; } return true; } #ifdef HAVE_OVERLAY static void runloop_iterate_linefeed_overlay(settings_t *settings) { static char prev_overlay_restore = false; bool osk_enable = input_driver_is_onscreen_keyboard_enabled(); if (osk_enable && !input_keyboard_ctl( RARCH_INPUT_KEYBOARD_CTL_IS_LINEFEED_ENABLED, NULL)) { input_driver_unset_onscreen_keyboard_enabled(); prev_overlay_restore = true; command_event(CMD_EVENT_OVERLAY_DEINIT, NULL); } else if (!osk_enable && input_keyboard_ctl( RARCH_INPUT_KEYBOARD_CTL_IS_LINEFEED_ENABLED, NULL)) { input_driver_set_onscreen_keyboard_enabled(); prev_overlay_restore = false; command_event(CMD_EVENT_OVERLAY_INIT, NULL); } else if (prev_overlay_restore) { if (!settings->input.overlay_hide_in_menu) command_event(CMD_EVENT_OVERLAY_INIT, NULL); prev_overlay_restore = false; } } #endif /* Loads dummy core instead of exiting RetroArch completely. * Aborts core shutdown if invoked. */ static int runloop_iterate_time_to_exit_load_dummy(void) { content_ctx_info_t content_info = {0}; if (!task_push_content_load_default( NULL, NULL, &content_info, CORE_TYPE_DUMMY, CONTENT_MODE_LOAD_NOTHING_WITH_DUMMY_CORE, NULL, NULL)) return -1; runloop_ctl(RUNLOOP_CTL_UNSET_SHUTDOWN, NULL); runloop_ctl(RUNLOOP_CTL_UNSET_CORE_SHUTDOWN, NULL); return 1; } /* Time to exit out of the main loop? * Reasons for exiting: * a) Shutdown environment callback was invoked. * b) Quit key was pressed. * c) Frame count exceeds or equals maximum amount of frames to run. * d) Video driver no longer alive. * e) End of BSV movie and BSV EOF exit is true. (TODO/FIXME - explain better) */ static INLINE int runloop_iterate_time_to_exit(bool quit_key_pressed) { settings_t *settings = NULL; bool time_to_exit = runloop_ctl(RUNLOOP_CTL_IS_SHUTDOWN, NULL); time_to_exit = time_to_exit || quit_key_pressed; time_to_exit = time_to_exit || !video_driver_is_alive(); time_to_exit = time_to_exit || bsv_movie_ctl(BSV_MOVIE_CTL_END_EOF, NULL); time_to_exit = time_to_exit || runloop_is_frame_count_end(); time_to_exit = time_to_exit || runloop_ctl(RUNLOOP_CTL_IS_EXEC, NULL); if (!time_to_exit) return 1; if (runloop_ctl(RUNLOOP_CTL_IS_EXEC, NULL)) runloop_ctl(RUNLOOP_CTL_UNSET_EXEC, NULL); if (!runloop_ctl(RUNLOOP_CTL_IS_CORE_SHUTDOWN, NULL)) return -1; /* Quits out of RetroArch main loop. */ settings = config_get_ptr(); if (settings->load_dummy_on_core_shutdown) return runloop_iterate_time_to_exit_load_dummy(); return -1; } #ifdef HAVE_MENU static int runloop_iterate_menu(enum menu_action action, unsigned *sleep_ms) { menu_ctx_iterate_t iter; settings_t *settings = config_get_ptr(); bool focused = runloop_is_focused() && !ui_companion_is_on_foreground(); bool is_idle = runloop_ctl(RUNLOOP_CTL_IS_IDLE, NULL); iter.action = action; if (!menu_driver_ctl(RARCH_MENU_CTL_ITERATE, &iter)) rarch_ctl(RARCH_CTL_MENU_RUNNING_FINISHED, NULL); if (focused || !is_idle) menu_driver_ctl(RARCH_MENU_CTL_RENDER, NULL); if (!focused || is_idle) { *sleep_ms = 10; return 1; } if (!settings->menu.throttle_framerate && !settings->fastforward_ratio) return 0; return -1; } #endif /** * runloop_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 runloop_iterate(unsigned *sleep_ms) { unsigned i; event_cmd_state_t cmd; retro_time_t current, target, to_sleep_ms; static retro_input_t last_input = {0}; event_cmd_state_t *cmd_ptr = &cmd; static retro_time_t frame_limit_minimum_time = 0.0; static retro_time_t frame_limit_last_time = 0.0; settings_t *settings = config_get_ptr(); cmd.state[1] = last_input; cmd.state[0] = input_keys_pressed(); last_input = cmd.state[0]; runloop_ctl(RUNLOOP_CTL_UNSET_FRAME_TIME_LAST, NULL); if (runloop_ctl(RUNLOOP_CTL_SHOULD_SET_FRAME_LIMIT, NULL)) { struct retro_system_av_info *av_info = video_viewport_get_system_av_info(); float fastforward_ratio = (settings->fastforward_ratio == 0.0f) ? 1.0f : settings->fastforward_ratio; frame_limit_last_time = cpu_features_get_time_usec(); frame_limit_minimum_time = (retro_time_t)roundf(1000000.0f / (av_info->timing.fps * fastforward_ratio)); runloop_ctl(RUNLOOP_CTL_UNSET_FRAME_LIMIT, NULL); } if (input_driver_is_flushing_input()) { input_driver_unset_flushing_input(); if (cmd.state[0].state) { cmd.state[0].state = 0; /* If core was paused before entering menu, evoke * pause toggle to wake it up. */ if (runloop_ctl(RUNLOOP_CTL_IS_PAUSED, NULL)) BIT64_SET(cmd.state[0].state, RARCH_PAUSE_TOGGLE); input_driver_set_flushing_input(); } } if (runloop_frame_time.callback) { /* Updates frame timing if frame timing callback is in use by the core. * Limits frame time if fast forward ratio throttle is enabled. */ retro_time_t current = cpu_features_get_time_usec(); retro_time_t delta = current - runloop_frame_time_last; bool is_locked_fps = (runloop_ctl(RUNLOOP_CTL_IS_PAUSED, NULL) || input_driver_is_nonblock_state()) | !!recording_driver_get_data_ptr(); if (!runloop_frame_time_last || is_locked_fps) delta = runloop_frame_time.reference; if (!is_locked_fps && runloop_ctl(RUNLOOP_CTL_IS_SLOWMOTION, NULL)) delta /= settings->slowmotion_ratio; runloop_frame_time_last = current; if (is_locked_fps) runloop_frame_time_last = 0; runloop_frame_time.callback(delta); } cmd.state[2].state = cmd.state[0].state & ~cmd.state[1].state; /* trigger */ if (runloop_cmd_triggered(cmd_ptr, RARCH_OVERLAY_NEXT)) command_event(CMD_EVENT_OVERLAY_NEXT, NULL); if (runloop_cmd_triggered(cmd_ptr, RARCH_FULLSCREEN_TOGGLE_KEY)) { bool fullscreen_toggled = !runloop_ctl(RUNLOOP_CTL_IS_PAUSED, NULL); #ifdef HAVE_MENU fullscreen_toggled = fullscreen_toggled || menu_driver_ctl(RARCH_MENU_CTL_IS_ALIVE, NULL); #endif if (fullscreen_toggled) command_event(CMD_EVENT_FULLSCREEN_TOGGLE, NULL); } if (runloop_cmd_triggered(cmd_ptr, RARCH_GRAB_MOUSE_TOGGLE)) command_event(CMD_EVENT_GRAB_MOUSE_TOGGLE, NULL); #ifdef HAVE_MENU if (runloop_cmd_menu_press(cmd_ptr) || rarch_ctl(RARCH_CTL_IS_DUMMY_CORE, NULL)) { if (menu_driver_ctl(RARCH_MENU_CTL_IS_ALIVE, NULL)) { if (rarch_ctl(RARCH_CTL_IS_INITED, NULL) && !rarch_ctl(RARCH_CTL_IS_DUMMY_CORE, NULL)) rarch_ctl(RARCH_CTL_MENU_RUNNING_FINISHED, NULL); } else rarch_ctl(RARCH_CTL_MENU_RUNNING, NULL); } #endif #ifdef HAVE_OVERLAY runloop_iterate_linefeed_overlay(settings); #endif if (runloop_iterate_time_to_exit( runloop_cmd_press(cmd_ptr, RARCH_QUIT_KEY)) != 1) { frame_limit_last_time = 0.0; command_event(CMD_EVENT_QUIT, NULL); return -1; } #ifdef HAVE_MENU if (menu_driver_ctl(RARCH_MENU_CTL_IS_ALIVE, NULL)) { int ret = runloop_iterate_menu((enum menu_action) menu_input_frame_retropad(cmd.state[0], cmd.state[2]), sleep_ms); if (ret == -1) goto end; return ret; } #endif if (!runloop_check_state(&cmd, &runloop_shader_dir)) { /* RetroArch has been paused. */ core_poll(); *sleep_ms = 10; return 1; } #if defined(HAVE_THREADS) autosave_lock(); #endif #ifdef HAVE_NETPLAY netplay_driver_ctl(RARCH_NETPLAY_CTL_PRE_FRAME, NULL); #endif if (bsv_movie_ctl(BSV_MOVIE_CTL_IS_INITED, NULL)) bsv_movie_ctl(BSV_MOVIE_CTL_SET_FRAME_START, NULL); camera_driver_ctl(RARCH_CAMERA_CTL_POLL, NULL); /* 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) && !input_driver_is_nonblock_state()) retro_sleep(settings->video.frame_delay); core_run(); #ifdef HAVE_CHEEVOS cheevos_test(); #endif 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 (bsv_movie_ctl(BSV_MOVIE_CTL_IS_INITED, NULL)) bsv_movie_ctl(BSV_MOVIE_CTL_SET_FRAME_END, NULL); #ifdef HAVE_NETPLAY netplay_driver_ctl(RARCH_NETPLAY_CTL_POST_FRAME, NULL); #endif #if defined(HAVE_THREADS) autosave_unlock(); #endif if (!settings->fastforward_ratio) return 0; #ifdef HAVE_MENU end: #endif current = cpu_features_get_time_usec(); target = frame_limit_last_time + frame_limit_minimum_time; to_sleep_ms = (target - current) / 1000; if (to_sleep_ms > 0) { *sleep_ms = (unsigned)to_sleep_ms; /* Combat jitter a bit. */ frame_limit_last_time += frame_limit_minimum_time; return 1; } frame_limit_last_time = cpu_features_get_time_usec(); return 0; }