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RetroArch/runloop.c
twinaphex 7dcb57f22d Prevent some null pointer dereferences
2016-10-21 20:47:11 +02:00

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/* 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 <http://www.gnu.org/licenses/>.
*/
#include <stdarg.h>
#include <math.h>
#include <compat/strl.h>
#include <retro_inline.h>
#include <retro_assert.h>
#include <file/file_path.h>
#include <queues/message_queue.h>
#include <queues/task_queue.h>
#include <string/stdstring.h>
#include <features/features_cpu.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_THREADS
#include <rthreads/rthreads.h>
#endif
#ifdef HAVE_CHEEVOS
#include "cheevos.h"
#endif
#ifdef HAVE_MENU
#include "menu/menu_display.h"
#include "menu/menu_driver.h"
#include "menu/menu_event.h"
#include "menu/widgets/menu_dialog.h"
#endif
#ifdef HAVE_NETWORKING
#include "network/netplay/netplay.h"
#endif
#if defined(HAVE_HTTPSERVER) && defined(HAVE_ZLIB)
#include "network/httpserver/httpserver.h"
#endif
#include "autosave.h"
#include "core_info.h"
#include "configuration.h"
#include "driver.h"
#include "movie.h"
#include "dirs.h"
#include "paths.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 "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"
#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
static rarch_system_info_t runloop_system;
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 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;
static unsigned runloop_pending_windowed_scale = 0;
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_quit_confirm = 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;
global_t *global_get_ptr(void)
{
static struct global g_extern;
return &g_extern;
}
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 || !settings->video.font_enable)
return;
#ifdef HAVE_THREADS
slock_lock(_runloop_msg_queue_lock);
#endif
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;
if (runloop_msg_queue)
{
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);
}
}
#ifdef HAVE_THREADS
slock_unlock(_runloop_msg_queue_lock);
#endif
}
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);
}
#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
/**
* 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];
game_path[0] ='\0';
if (!retroarch_validate_game_options(game_path,
sizeof(game_path), false))
return false;
if (!config_file_exists(game_path))
return false;
RARCH_LOG("%s %s\n",
msg_hash_to_str(MSG_GAME_SPECIFIC_CORE_OPTIONS_FOUND_AT),
game_path);
*output = strdup(game_path);
return true;
}
bool runloop_ctl(enum runloop_ctl_state state, void *data)
{
switch (state)
{
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_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_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_NETWORKING
/* retro_run() will be called in very strange and
* mysterious ways, have to disable it. */
if (netplay_driver_ctl(RARCH_NETPLAY_CTL_IS_ENABLED, NULL))
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:
return path_set(RARCH_PATH_CORE, (const char*)data);
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);
path_deinit_subsystem();
command_event(CMD_EVENT_RECORD_DEINIT, NULL);
command_event(CMD_EVENT_LOG_FILE_DEINIT, NULL);
rarch_ctl(RARCH_CTL_UNSET_BLOCK_CONFIG_READ, NULL);
rarch_ctl(RARCH_CTL_UNSET_SRAM_LOAD_DISABLED, NULL);
rarch_ctl(RARCH_CTL_UNSET_SRAM_SAVE_DISABLED, NULL);
rarch_ctl(RARCH_CTL_UNSET_SRAM_ENABLE, NULL);
rarch_ctl(RARCH_CTL_UNSET_BPS_PREF, NULL);
rarch_ctl(RARCH_CTL_UNSET_IPS_PREF, NULL);
rarch_ctl(RARCH_CTL_UNSET_UPS_PREF, NULL);
rarch_ctl(RARCH_CTL_UNSET_PATCH_BLOCKED, NULL);
runloop_overrides_active = false;
core_unset_input_descriptors();
global = global_get_ptr();
path_clear_all();
dir_clear_all();
memset(global, 0, sizeof(struct global));
retroarch_override_setting_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:
#ifdef HAVE_THREADS
slock_lock(_runloop_msg_queue_lock);
#endif
{
const char **ret = (const char**)data;
if (!ret)
return false;
*ret = msg_queue_pull(runloop_msg_queue);
}
#ifdef HAVE_THREADS
slock_unlock(_runloop_msg_queue_lock);
#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;
#ifdef HAVE_THREADS
slock_lock(_runloop_msg_queue_lock);
#endif
msg_queue_free(runloop_msg_queue);
#ifdef HAVE_THREADS
slock_unlock(_runloop_msg_queue_lock);
#endif
#ifdef HAVE_THREADS
slock_free(_runloop_msg_queue_lock);
_runloop_msg_queue_lock = NULL;
#endif
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_IS_CORE_SHUTDOWN:
return runloop_core_shutdown_initiated;
case RUNLOOP_CTL_SET_SHUTDOWN:
runloop_shutdown_initiated = true;
break;
case RUNLOOP_CTL_IS_SHUTDOWN:
return runloop_shutdown_initiated;
case RUNLOOP_CTL_SET_EXEC:
runloop_exec = true;
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:
{
settings_t *settings = config_get_ptr();
char *game_options_path = NULL;
bool ret = false;
const struct retro_variable *vars =
(const struct retro_variable*)data;
if (settings && 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
{
char buf[PATH_MAX_LENGTH];
const char *options_path = NULL;
buf[0] = '\0';
if (settings)
options_path = settings->path.core_options;
if (options_path && string_is_empty(options_path) && !path_is_empty(RARCH_PATH_CONFIG))
{
fill_pathname_resolve_relative(buf, path_get(RARCH_PATH_CONFIG),
file_path_str(FILE_PATH_CORE_OPTIONS_CONFIG), sizeof(buf));
options_path = buf;
}
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:
{
if (!runloop_core_options)
return false;
/* check if game options file was just created and flush
to that file instead */
if(!path_is_empty(RARCH_PATH_CORE_OPTIONS))
{
core_option_manager_flush_game_specific(runloop_core_options,
path_get(RARCH_PATH_CORE_OPTIONS));
path_clear(RARCH_PATH_CORE_OPTIONS);
}
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;
}
bool runloop_is_quit_confirm(void)
{
return runloop_quit_confirm;
}
void runloop_set_quit_confirm(bool on)
{
runloop_quit_confirm = on;
}
void runloop_poll(event_cmd_state_t *cmd)
{
static retro_input_t last_input = {0};
cmd->state[1] = last_input;
cmd->state[0] = input_keys_pressed();
cmd->state[2].state = cmd->state[0].state
& ~cmd->state[1].state;
last_input = cmd->state[0];
}
#ifdef HAVE_MENU
static int runloop_iterate_menu(settings_t *settings,
enum menu_action action, unsigned *sleep_ms)
{
menu_ctx_iterate_t iter;
bool focused = settings->pause_nonactive ? video_driver_is_focused() : true;
bool is_idle = runloop_idle;
focused = focused && !ui_companion_is_on_foreground();
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
static bool runloop_check_state(event_cmd_state_t *cmd)
{
static bool old_focus = true;
bool tmp = false;
bool focused = true;
bool pause_pressed = runloop_cmd_triggered(cmd, RARCH_PAUSE_TOGGLE);
settings_t *settings = config_get_ptr();
if (runloop_idle)
return false;
if (settings->pause_nonactive)
focused = video_driver_is_focused();
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_NETWORKING
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
/* Check if libretro pause key was pressed. If so, pause or
* unpause the libretro core. */
/* FRAMEADVANCE will set us into pause mode. */
pause_pressed |= !runloop_paused && runloop_cmd_triggered(cmd, RARCH_FRAMEADVANCE);
if (focused && pause_pressed)
command_event(CMD_EVENT_PAUSE_TOGGLE, NULL);
else if (focused && !old_focus)
command_event(CMD_EVENT_UNPAUSE, NULL);
else if (!focused && old_focus)
command_event(CMD_EVENT_PAUSE, NULL);
old_focus = focused;
if (!focused)
return false;
if (runloop_paused)
{
/* check pause state */
bool check_is_oneshot = runloop_cmd_triggered(cmd,
RARCH_FRAMEADVANCE)
|| runloop_cmd_press(cmd, RARCH_REWIND);
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;
}
/* 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 (runloop_cmd_triggered(cmd, RARCH_FAST_FORWARD_KEY))
{
if (input_driver_is_nonblock_state())
input_driver_unset_nonblock_state();
else
input_driver_set_nonblock_state();
driver_ctl(RARCH_DRIVER_CTL_SET_NONBLOCK_STATE, NULL);
}
else if ((runloop_cmd_pressed(cmd, RARCH_FAST_FORWARD_HOLD_KEY)
!= runloop_cmd_press(cmd, RARCH_FAST_FORWARD_HOLD_KEY)))
{
if (runloop_cmd_press(cmd, RARCH_FAST_FORWARD_HOLD_KEY))
input_driver_set_nonblock_state();
else
input_driver_unset_nonblock_state();
driver_ctl(RARCH_DRIVER_CTL_SET_NONBLOCK_STATE, NULL);
}
/* Checks if the state increase/decrease keys have been pressed
* for this frame. */
if (runloop_cmd_triggered(cmd, RARCH_STATE_SLOT_PLUS))
{
char msg[128];
msg[0] = '\0';
settings->state_slot++;
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);
}
else if (runloop_cmd_triggered(cmd, RARCH_STATE_SLOT_MINUS))
{
char msg[128];
msg[0] = '\0';
if (settings->state_slot > 0)
settings->state_slot--;
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);
}
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));
runloop_slowmotion = runloop_cmd_press(cmd, RARCH_SLOWMOTION);
if (runloop_slowmotion)
{
/* Checks if slowmotion toggle/hold was being pressed and/or held. */
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);
}
if (runloop_cmd_triggered(cmd, RARCH_MOVIE_RECORD_TOGGLE))
bsv_movie_check();
if (runloop_cmd_triggered(cmd, RARCH_SHADER_NEXT) ||
runloop_cmd_triggered(cmd, RARCH_SHADER_PREV))
dir_check_shader(
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;
}
/* 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 = config_get_ptr();
bool time_to_exit = runloop_shutdown_initiated;
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_max_frames &&
(*(video_driver_get_frame_count_ptr())
>= runloop_max_frames));
time_to_exit = time_to_exit || runloop_exec;
if (!time_to_exit)
return 1;
#ifdef HAVE_MENU
if (!runloop_is_quit_confirm())
{
if (settings && settings->confirm_on_exit)
{
if (menu_dialog_is_active())
return 1;
if (content_is_inited())
{
if(menu_display_toggle_get_reason() != MENU_TOGGLE_REASON_USER)
menu_display_toggle_set_reason(MENU_TOGGLE_REASON_MESSAGE);
rarch_ctl(RARCH_CTL_MENU_RUNNING, NULL);
}
menu_dialog_show_message(MENU_DIALOG_QUIT_CONFIRM, MENU_ENUM_LABEL_CONFIRM_ON_EXIT);
return 1;
}
}
#endif
if (runloop_exec)
runloop_exec = false;
if (runloop_core_shutdown_initiated &&
settings->load_dummy_on_core_shutdown)
{
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;
/* Loads dummy core instead of exiting RetroArch completely.
* Aborts core shutdown if invoked. */
runloop_shutdown_initiated = false;
runloop_core_shutdown_initiated = false;
return 1;
}
/* Quits out of RetroArch main loop. */
return -1;
}
/**
* 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(event_cmd_state_t *cmd, unsigned *sleep_ms)
{
unsigned i;
retro_time_t current, target, to_sleep_ms;
#ifdef HAVE_OVERLAY
static char prev_overlay_restore = false;
bool osk_enable = input_driver_is_onscreen_keyboard_enabled();
#endif
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();
if (runloop_frame_time_last_enable)
{
runloop_frame_time_last = 0;
runloop_frame_time_last_enable = false;
}
if (runloop_set_frame_limit)
{
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_set_frame_limit = false;
}
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_paused)
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_paused ||
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_slowmotion)
delta /= settings->slowmotion_ratio;
runloop_frame_time_last = current;
if (is_locked_fps)
runloop_frame_time_last = 0;
runloop_frame_time.callback(delta);
}
if (runloop_cmd_triggered(cmd, RARCH_OVERLAY_NEXT))
command_event(CMD_EVENT_OVERLAY_NEXT, NULL);
if (runloop_cmd_triggered(cmd, RARCH_FULLSCREEN_TOGGLE_KEY))
{
bool fullscreen_toggled = !runloop_paused;
#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, RARCH_GRAB_MOUSE_TOGGLE))
command_event(CMD_EVENT_GRAB_MOUSE_TOGGLE, NULL);
#ifdef HAVE_MENU
if (runloop_cmd_menu_press(cmd) ||
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
{
menu_display_toggle_set_reason(MENU_TOGGLE_REASON_USER);
rarch_ctl(RARCH_CTL_MENU_RUNNING, NULL);
}
}
#endif
#ifdef HAVE_OVERLAY
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
if (runloop_iterate_time_to_exit(
runloop_cmd_press(cmd, 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;
core_poll();
ret = runloop_iterate_menu(settings,
(enum menu_action)
menu_event(cmd->state[0], cmd->state[2]),
sleep_ms);
#ifdef HAVE_NETWORKING
/* FIXME: This is an ugly way to tell Netplay this... */
netplay_driver_ctl(RARCH_NETPLAY_CTL_PAUSE, NULL);
#endif
if (ret == -1)
goto end;
return ret;
}
#endif
if (!runloop_check_state(cmd))
{
/* RetroArch has been paused. */
core_poll();
#ifdef HAVE_NETWORKING
/* FIXME: This is an ugly way to tell Netplay this... */
netplay_driver_ctl(RARCH_NETPLAY_CTL_PAUSE, NULL);
#endif
*sleep_ms = 10;
return 1;
}
autosave_lock();
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);
autosave_unlock();
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;
}
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