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RetroArch/runloop.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2015 - 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 <math.h>
#include <file/file_path.h>
#include <retro_inline.h>
#include <compat/strl.h>
#ifdef HAVE_CHEEVOS
#include "cheevos.h"
#endif
#include "configuration.h"
#include "performance.h"
#include "retroarch.h"
#include "runloop.h"
#include "runloop_data.h"
#include "audio/audio_driver.h"
#include "msg_hash.h"
#include "input/keyboard_line.h"
#include "input/input_common.h"
#ifdef HAVE_MENU
#include "menu/menu.h"
#endif
#ifdef HAVE_NETPLAY
#include "netplay.h"
#endif
#include "verbosity.h"
static struct global g_extern;
static bool main_is_idle;
static bool main_is_paused;
static bool main_is_slowmotion;
static unsigned main_max_frames;
static retro_time_t frame_limit_last_time;
static retro_time_t frame_limit_minimum_time;
/**
* 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 check_pause(settings_t *settings,
bool pause_pressed, bool frameadvance_pressed)
{
static bool old_focus = true;
bool focus = true;
enum event_command cmd = EVENT_CMD_NONE;
bool old_is_paused = main_is_paused;
/* FRAMEADVANCE will set us into pause mode. */
pause_pressed |= !main_is_paused && frameadvance_pressed;
if (settings->pause_nonactive)
focus = video_driver_ctl(RARCH_DISPLAY_CTL_IS_FOCUSED, NULL);
if (focus && pause_pressed)
cmd = EVENT_CMD_PAUSE_TOGGLE;
else if (focus && !old_focus)
cmd = EVENT_CMD_UNPAUSE;
else if (!focus && old_focus)
cmd = EVENT_CMD_PAUSE;
old_focus = focus;
if (cmd != EVENT_CMD_NONE)
event_command(cmd);
if (main_is_paused == old_is_paused)
return false;
return true;
}
/**
* 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 check_fast_forward_button(driver_t *driver,
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)
driver->nonblock_state = !driver->nonblock_state;
else if (old_hold_pressed != hold_pressed)
driver->nonblock_state = hold_pressed;
else
return;
driver_set_nonblock_state(driver->nonblock_state);
}
/**
* 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 check_stateslots(settings_t *settings,
bool pressed_increase, bool pressed_decrease)
{
char msg[PATH_MAX_LENGTH];
/* 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);
rarch_main_msg_queue_push(msg, 1, 180, true);
RARCH_LOG("%s\n", msg);
}
/**
* check_rewind:
* @pressed : was rewind key pressed or held?
*
* Checks if rewind toggle/hold was being pressed and/or held.
**/
static void check_rewind(settings_t *settings,
global_t *global, bool pressed)
{
static bool first = true;
if (state_manager_frame_is_reversed())
{
audio_driver_ctl(RARCH_AUDIO_CTL_FRAME_IS_REVERSE, NULL);
state_manager_set_frame_is_reversed(false);
}
if (first)
{
first = false;
return;
}
if (!global->rewind.state)
return;
if (pressed)
{
const void *buf = NULL;
if (state_manager_pop(global->rewind.state, &buf))
{
state_manager_set_frame_is_reversed(true);
audio_driver_ctl(RARCH_AUDIO_CTL_SETUP_REWIND, NULL);
rarch_main_msg_queue_push_new(MSG_REWINDING, 0,
main_is_paused ? 1 : 30, true);
core.retro_unserialize(buf, global->rewind.size);
if (global->bsv.movie)
bsv_movie_frame_rewind(global->bsv.movie);
}
else
rarch_main_msg_queue_push_new(MSG_REWIND_REACHED_END,
0, 30, true);
}
else
{
static unsigned cnt = 0;
cnt = (cnt + 1) % (settings->rewind_granularity ?
settings->rewind_granularity : 1); /* Avoid possible SIGFPE. */
if ((cnt == 0) || global->bsv.movie)
{
static struct retro_perf_counter rewind_serialize = {0};
void *state = NULL;
state_manager_push_where(global->rewind.state, &state);
rarch_perf_init(&rewind_serialize, "rewind_serialize");
retro_perf_start(&rewind_serialize);
core.retro_serialize(state, global->rewind.size);
retro_perf_stop(&rewind_serialize);
state_manager_push_do(global->rewind.state);
}
}
retro_set_rewind_callbacks();
}
#define SHADER_EXT_GLSL 0x7c976537U
#define SHADER_EXT_GLSLP 0x0f840c87U
#define SHADER_EXT_CG 0x0059776fU
#define SHADER_EXT_CGP 0x0b8865bfU
/**
* 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 check_shader_dir(global_t *global,
bool pressed_next, bool pressed_prev)
{
uint32_t ext_hash;
char msg[PATH_MAX_LENGTH];
const char *shader = NULL;
const char *ext = NULL;
enum rarch_shader_type type = RARCH_SHADER_NONE;
if (!global || !global->dir.shader_dir.list)
return;
if (pressed_next)
{
global->dir.shader_dir.ptr = (global->dir.shader_dir.ptr + 1) %
global->dir.shader_dir.list->size;
}
else if (pressed_prev)
{
if (global->dir.shader_dir.ptr == 0)
global->dir.shader_dir.ptr = global->dir.shader_dir.list->size - 1;
else
global->dir.shader_dir.ptr--;
}
else
return;
shader = global->dir.shader_dir.list->elems[global->dir.shader_dir.ptr].data;
ext = path_get_extension(shader);
ext_hash = msg_hash_calculate(ext);
switch (ext_hash)
{
case SHADER_EXT_GLSL:
case SHADER_EXT_GLSLP:
type = RARCH_SHADER_GLSL;
break;
case SHADER_EXT_CG:
case SHADER_EXT_CGP:
type = RARCH_SHADER_CG;
break;
default:
return;
}
snprintf(msg, sizeof(msg), "%s #%u: \"%s\".",
msg_hash_to_str(MSG_SHADER),
(unsigned)global->dir.shader_dir.ptr, shader);
rarch_main_msg_queue_push(msg, 1, 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));
}
global_t *global_get_ptr(void)
{
return &g_extern;
}
bool rarch_main_ctl(enum rarch_main_ctl_state state, void *data)
{
driver_t *driver = driver_get_ptr();
settings_t *settings = config_get_ptr();
global_t *global = global_get_ptr();
switch (state)
{
case RARCH_MAIN_CTL_SET_WINDOWED_SCALE:
{
unsigned *idx = (unsigned*)data;
if (!idx)
return false;
global->pending.windowed_scale = *idx;
}
break;
case RARCH_MAIN_CTL_SET_LIBRETRO_PATH:
{
const char *fullpath = (const char*)data;
if (!fullpath)
return false;
strlcpy(settings->libretro, fullpath, sizeof(settings->libretro));
}
break;
case RARCH_MAIN_CTL_CLEAR_CONTENT_PATH:
*global->path.fullpath = '\0';
break;
case RARCH_MAIN_CTL_GET_CONTENT_PATH:
{
char **fullpath = (char**)data;
if (!fullpath)
return false;
*fullpath = (char*)global->path.fullpath;
}
break;
case RARCH_MAIN_CTL_SET_CONTENT_PATH:
{
const char *fullpath = (const char*)data;
if (!fullpath)
return false;
strlcpy(global->path.fullpath, fullpath, sizeof(global->path.fullpath));
}
break;
case RARCH_MAIN_CTL_CHECK_STATE:
{
event_cmd_state_t *cmd = (event_cmd_state_t*)data;
if (!cmd || main_is_idle)
return false;
if (cmd->screenshot_pressed)
event_command(EVENT_CMD_TAKE_SCREENSHOT);
if (cmd->mute_pressed)
event_command(EVENT_CMD_AUDIO_MUTE_TOGGLE);
if (cmd->osk_pressed)
driver->keyboard_linefeed_enable = !driver->keyboard_linefeed_enable;
if (cmd->volume_up_pressed)
event_command(EVENT_CMD_VOLUME_UP);
else if (cmd->volume_down_pressed)
event_command(EVENT_CMD_VOLUME_DOWN);
#ifdef HAVE_NETPLAY
if (driver->netplay_data)
{
if (cmd->netplay_flip_pressed)
event_command(EVENT_CMD_NETPLAY_FLIP_PLAYERS);
if (cmd->fullscreen_toggle)
event_command(EVENT_CMD_FULLSCREEN_TOGGLE);
break;
}
#endif
check_pause(settings,
cmd->pause_pressed, cmd->frameadvance_pressed);
if (!rarch_main_ctl(RARCH_MAIN_CTL_CHECK_PAUSE_STATE, cmd))
return false;
check_fast_forward_button(driver,
cmd->fastforward_pressed,
cmd->hold_pressed, cmd->old_hold_pressed);
check_stateslots(settings, cmd->state_slot_increase,
cmd->state_slot_decrease);
if (cmd->save_state_pressed)
event_command(EVENT_CMD_SAVE_STATE);
else if (cmd->load_state_pressed)
event_command(EVENT_CMD_LOAD_STATE);
check_rewind(settings, global, cmd->rewind_pressed);
rarch_main_ctl(RARCH_MAIN_CTL_CHECK_SLOWMOTION, &cmd->slowmotion_pressed);
if (cmd->movie_record)
rarch_main_ctl(RARCH_MAIN_CTL_CHECK_MOVIE, NULL);
check_shader_dir(global, cmd->shader_next_pressed,
cmd->shader_prev_pressed);
if (cmd->disk_eject_pressed)
event_command(EVENT_CMD_DISK_EJECT_TOGGLE);
else if (cmd->disk_next_pressed)
event_command(EVENT_CMD_DISK_NEXT);
else if (cmd->disk_prev_pressed)
event_command(EVENT_CMD_DISK_PREV);
if (cmd->reset_pressed)
event_command(EVENT_CMD_RESET);
if (global->cheat)
{
if (cmd->cheat_index_plus_pressed)
cheat_manager_index_next(global->cheat);
else if (cmd->cheat_index_minus_pressed)
cheat_manager_index_prev(global->cheat);
else if (cmd->cheat_toggle_pressed)
cheat_manager_toggle(global->cheat);
}
}
break;
case RARCH_MAIN_CTL_CHECK_PAUSE_STATE:
{
bool check_is_oneshot;
event_cmd_state_t *cmd = (event_cmd_state_t*)data;
if (!cmd)
return false;
check_is_oneshot = cmd->frameadvance_pressed || cmd->rewind_pressed;
if (!main_is_paused)
return true;
if (cmd->fullscreen_toggle)
{
event_command(EVENT_CMD_FULLSCREEN_TOGGLE);
video_driver_ctl(RARCH_DISPLAY_CTL_CACHED_FRAME_RENDER, NULL);
}
if (!check_is_oneshot)
return false;
}
break;
case RARCH_MAIN_CTL_CHECK_SLOWMOTION:
{
bool *ptr = (bool*)data;
if (!ptr)
return false;
main_is_slowmotion = *ptr;
if (!main_is_slowmotion)
return false;
if (settings->video.black_frame_insertion)
video_driver_ctl(RARCH_DISPLAY_CTL_CACHED_FRAME_RENDER, NULL);
if (state_manager_frame_is_reversed())
rarch_main_msg_queue_push_new(MSG_SLOW_MOTION_REWIND, 0, 30, true);
else
rarch_main_msg_queue_push_new(MSG_SLOW_MOTION, 0, 30, true);
}
break;
case RARCH_MAIN_CTL_CHECK_MOVIE:
if (global->bsv.movie_playback)
return rarch_main_ctl(RARCH_MAIN_CTL_CHECK_MOVIE_PLAYBACK, NULL);
if (!global->bsv.movie)
return rarch_main_ctl(RARCH_MAIN_CTL_CHECK_MOVIE_INIT, NULL);
return rarch_main_ctl(RARCH_MAIN_CTL_CHECK_MOVIE_RECORD, NULL);
case RARCH_MAIN_CTL_CHECK_MOVIE_RECORD:
if (!global->bsv.movie)
return false;
rarch_main_msg_queue_push_new(
MSG_MOVIE_RECORD_STOPPED, 2, 180, true);
RARCH_LOG("%s\n", msg_hash_to_str(MSG_MOVIE_RECORD_STOPPED));
event_command(EVENT_CMD_BSV_MOVIE_DEINIT);
break;
case RARCH_MAIN_CTL_CHECK_MOVIE_INIT:
if (global->bsv.movie)
return false;
{
char path[PATH_MAX_LENGTH], msg[PATH_MAX_LENGTH];
settings->rewind_granularity = 1;
if (settings->state_slot > 0)
snprintf(path, sizeof(path), "%s%d",
global->bsv.movie_path, settings->state_slot);
else
strlcpy(path, global->bsv.movie_path, sizeof(path));
strlcat(path, ".bsv", sizeof(path));
snprintf(msg, sizeof(msg), "%s \"%s\".",
msg_hash_to_str(MSG_STARTING_MOVIE_RECORD_TO),
path);
global->bsv.movie = bsv_movie_init(path, RARCH_MOVIE_RECORD);
if (!global->bsv.movie)
return false;
else if (global->bsv.movie)
{
rarch_main_msg_queue_push(msg, 1, 180, true);
RARCH_LOG("%s \"%s\".\n",
msg_hash_to_str(MSG_STARTING_MOVIE_RECORD_TO),
path);
}
else
{
rarch_main_msg_queue_push_new(
MSG_FAILED_TO_START_MOVIE_RECORD,
1, 180, true);
RARCH_ERR("%s\n", msg_hash_to_str(MSG_FAILED_TO_START_MOVIE_RECORD));
}
}
break;
case RARCH_MAIN_CTL_CHECK_MOVIE_PLAYBACK:
if (!global->bsv.movie_end)
return false;
rarch_main_msg_queue_push_new(
MSG_MOVIE_PLAYBACK_ENDED, 1, 180, false);
RARCH_LOG("%s\n", msg_hash_to_str(MSG_MOVIE_PLAYBACK_ENDED));
event_command(EVENT_CMD_BSV_MOVIE_DEINIT);
global->bsv.movie_end = false;
global->bsv.movie_playback = false;
break;
case RARCH_MAIN_CTL_STATE_FREE:
main_is_idle = false;
main_is_paused = false;
main_is_slowmotion = false;
frame_limit_last_time = 0.0;
main_max_frames = 0;
break;
case RARCH_MAIN_CTL_GLOBAL_FREE:
event_command(EVENT_CMD_TEMPORARY_CONTENT_DEINIT);
event_command(EVENT_CMD_SUBSYSTEM_FULLPATHS_DEINIT);
event_command(EVENT_CMD_RECORD_DEINIT);
event_command(EVENT_CMD_LOG_FILE_DEINIT);
memset(&g_extern, 0, sizeof(g_extern));
break;
case RARCH_MAIN_CTL_CLEAR_STATE:
driver_clear_state();
rarch_main_ctl(RARCH_MAIN_CTL_STATE_FREE, NULL);
rarch_main_ctl(RARCH_MAIN_CTL_GLOBAL_FREE, NULL);
break;
case RARCH_MAIN_CTL_SET_MAX_FRAMES:
{
unsigned *ptr = (unsigned*)data;
if (!ptr)
return false;
main_max_frames = *ptr;
}
break;
case RARCH_MAIN_CTL_SET_FRAME_LIMIT_LAST_TIME:
{
struct retro_system_av_info *av_info = video_viewport_get_system_av_info();
float fastforward_ratio = settings->fastforward_ratio;
if (fastforward_ratio == 0.0f)
fastforward_ratio = 1.0f;
frame_limit_last_time = retro_get_time_usec();
frame_limit_minimum_time = (retro_time_t)roundf(1000000.0f / (av_info->timing.fps * fastforward_ratio));
}
break;
case RARCH_MAIN_CTL_IS_IDLE:
{
bool *ptr = (bool*)data;
if (!ptr)
return false;
*ptr = main_is_idle;
}
break;
case RARCH_MAIN_CTL_SET_IDLE:
{
bool *ptr = (bool*)data;
if (!ptr)
return false;
main_is_idle = *ptr;
}
break;
case RARCH_MAIN_CTL_IS_SLOWMOTION:
{
bool *ptr = (bool*)data;
if (!ptr)
return false;
*ptr = main_is_slowmotion;
}
break;
case RARCH_MAIN_CTL_SET_SLOWMOTION:
{
bool *ptr = (bool*)data;
if (!ptr)
return false;
main_is_slowmotion = *ptr;
}
break;
case RARCH_MAIN_CTL_SET_PAUSED:
{
bool *ptr = (bool*)data;
if (!ptr)
return false;
main_is_paused = *ptr;
}
break;
case RARCH_MAIN_CTL_IS_PAUSED:
{
bool *ptr = (bool*)data;
if (!ptr)
return false;
*ptr = main_is_paused;
}
break;
default:
return false;
}
return true;
}
#ifdef HAVE_OVERLAY
static void rarch_main_iterate_linefeed_overlay(driver_t *driver,
settings_t *settings)
{
static char prev_overlay_restore = false;
if (driver->osk_enable && !driver->keyboard_linefeed_enable)
{
driver->osk_enable = false;
prev_overlay_restore = true;
event_command(EVENT_CMD_OVERLAY_DEINIT);
}
else if (!driver->osk_enable && driver->keyboard_linefeed_enable)
{
driver->osk_enable = true;
prev_overlay_restore = false;
event_command(EVENT_CMD_OVERLAY_INIT);
}
else if (prev_overlay_restore)
{
if (!settings->input.overlay_hide_in_menu)
event_command(EVENT_CMD_OVERLAY_INIT);
prev_overlay_restore = false;
}
}
#endif
#ifdef HAVE_MENU
static bool rarch_main_cmd_get_state_menu_toggle_button_combo(
driver_t *driver, 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 0:
return false;
case 1:
if (!BIT64_GET(input, RETRO_DEVICE_ID_JOYPAD_DOWN))
return false;
if (!BIT64_GET(input, RETRO_DEVICE_ID_JOYPAD_Y))
return false;
if (!BIT64_GET(input, RETRO_DEVICE_ID_JOYPAD_L))
return false;
if (!BIT64_GET(input, RETRO_DEVICE_ID_JOYPAD_R))
return false;
break;
case 2:
if (!BIT64_GET(input, RETRO_DEVICE_ID_JOYPAD_L3))
return false;
if (!BIT64_GET(input, RETRO_DEVICE_ID_JOYPAD_R3))
return false;
break;
}
driver->flushing_input = true;
return true;
}
#endif
static void rarch_main_cmd_get_state(driver_t *driver,
settings_t *settings, event_cmd_state_t *cmd,
retro_input_t input, retro_input_t old_input,
retro_input_t trigger_input)
{
if (!cmd)
return;
cmd->overlay_next_pressed = BIT64_GET(trigger_input, RARCH_OVERLAY_NEXT);
cmd->grab_mouse_pressed = BIT64_GET(trigger_input, RARCH_GRAB_MOUSE_TOGGLE);
#ifdef HAVE_MENU
cmd->menu_pressed = BIT64_GET(trigger_input, RARCH_MENU_TOGGLE) ||
rarch_main_cmd_get_state_menu_toggle_button_combo(driver,
settings, input,
old_input, trigger_input);
#endif
cmd->quit_key_pressed = BIT64_GET(input, RARCH_QUIT_KEY);
cmd->screenshot_pressed = BIT64_GET(trigger_input, RARCH_SCREENSHOT);
cmd->mute_pressed = BIT64_GET(trigger_input, RARCH_MUTE);
cmd->osk_pressed = BIT64_GET(trigger_input, RARCH_OSK);
cmd->volume_up_pressed = BIT64_GET(input, RARCH_VOLUME_UP);
cmd->volume_down_pressed = BIT64_GET(input, RARCH_VOLUME_DOWN);
cmd->reset_pressed = BIT64_GET(trigger_input, RARCH_RESET);
cmd->disk_prev_pressed = BIT64_GET(trigger_input, RARCH_DISK_PREV);
cmd->disk_next_pressed = BIT64_GET(trigger_input, RARCH_DISK_NEXT);
cmd->disk_eject_pressed = BIT64_GET(trigger_input, RARCH_DISK_EJECT_TOGGLE);
cmd->movie_record = BIT64_GET(trigger_input, RARCH_MOVIE_RECORD_TOGGLE);
cmd->save_state_pressed = BIT64_GET(trigger_input, RARCH_SAVE_STATE_KEY);
cmd->load_state_pressed = BIT64_GET(trigger_input, RARCH_LOAD_STATE_KEY);
cmd->slowmotion_pressed = BIT64_GET(input, RARCH_SLOWMOTION);
cmd->shader_next_pressed = BIT64_GET(trigger_input, RARCH_SHADER_NEXT);
cmd->shader_prev_pressed = BIT64_GET(trigger_input, RARCH_SHADER_PREV);
cmd->fastforward_pressed = BIT64_GET(trigger_input, RARCH_FAST_FORWARD_KEY);
cmd->hold_pressed = BIT64_GET(input, RARCH_FAST_FORWARD_HOLD_KEY);
cmd->old_hold_pressed = BIT64_GET(old_input, RARCH_FAST_FORWARD_HOLD_KEY);
cmd->state_slot_increase = BIT64_GET(trigger_input, RARCH_STATE_SLOT_PLUS);
cmd->state_slot_decrease = BIT64_GET(trigger_input, RARCH_STATE_SLOT_MINUS);
cmd->pause_pressed = BIT64_GET(trigger_input, RARCH_PAUSE_TOGGLE);
cmd->frameadvance_pressed = BIT64_GET(trigger_input, RARCH_FRAMEADVANCE);
cmd->rewind_pressed = BIT64_GET(input, RARCH_REWIND);
cmd->netplay_flip_pressed = BIT64_GET(trigger_input, RARCH_NETPLAY_FLIP);
cmd->fullscreen_toggle = BIT64_GET(trigger_input, RARCH_FULLSCREEN_TOGGLE_KEY);
cmd->cheat_index_plus_pressed = BIT64_GET(trigger_input,
RARCH_CHEAT_INDEX_PLUS);
cmd->cheat_index_minus_pressed = BIT64_GET(trigger_input,
RARCH_CHEAT_INDEX_MINUS);
cmd->cheat_toggle_pressed = BIT64_GET(trigger_input,
RARCH_CHEAT_TOGGLE);
}
/* 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 rarch_main_iterate_time_to_exit(event_cmd_state_t *cmd)
{
uint64_t *frame_count = NULL;
global_t *global = global_get_ptr();
rarch_system_info_t *system = rarch_system_info_get_ptr();
bool shutdown_pressed = (system && system->shutdown) || cmd->quit_key_pressed;
bool video_alive = video_driver_ctl(RARCH_DISPLAY_CTL_IS_ALIVE, NULL);
bool movie_end = (global->bsv.movie_end && global->bsv.eof_exit);
bool frame_count_end = false;
video_driver_ctl(RARCH_DISPLAY_CTL_GET_FRAME_COUNT, &frame_count);
frame_count_end = main_max_frames && (*frame_count >= main_max_frames);
if (shutdown_pressed || frame_count_end || movie_end || !video_alive || global->exec)
{
settings_t *settings = config_get_ptr();
if (global->exec)
global->exec = false;
/* 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;
}
return 1;
}
/**
* 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)
{
int ret;
unsigned i;
retro_input_t trigger_input;
event_cmd_state_t cmd;
retro_time_t current, target, to_sleep_ms;
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();
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;
}
}
if (system->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 = retro_get_time_usec();
retro_time_t delta = current - system->frame_time_last;
bool is_locked_fps = (main_is_paused || driver->nonblock_state) |
!!driver->recording_data;
if (!system->frame_time_last || is_locked_fps)
delta = system->frame_time.reference;
if (!is_locked_fps && main_is_slowmotion)
delta /= settings->slowmotion_ratio;
system->frame_time_last = current;
if (is_locked_fps)
system->frame_time_last = 0;
system->frame_time.callback(delta);
}
trigger_input = input & ~old_input;
rarch_main_cmd_get_state(driver, settings, &cmd, input, old_input, trigger_input);
if (cmd.overlay_next_pressed)
event_command(EVENT_CMD_OVERLAY_NEXT);
if (!main_is_paused
#ifdef HAVE_MENU
|| menu_driver_alive()
#endif
)
{
if (cmd.fullscreen_toggle)
event_command(EVENT_CMD_FULLSCREEN_TOGGLE);
}
if (cmd.grab_mouse_pressed)
event_command(EVENT_CMD_GRAB_MOUSE_TOGGLE);
#ifdef HAVE_MENU
if (cmd.menu_pressed || (global->inited.core.type == CORE_TYPE_DUMMY))
{
if (menu_driver_alive())
{
if (global->inited.main && (global->inited.core.type != CORE_TYPE_DUMMY))
rarch_ctl(RARCH_ACTION_STATE_MENU_RUNNING_FINISHED, NULL);
}
else
rarch_ctl(RARCH_ACTION_STATE_MENU_RUNNING, NULL);
}
#endif
#ifdef HAVE_OVERLAY
rarch_main_iterate_linefeed_overlay(driver, settings);
#endif
ret = rarch_main_iterate_time_to_exit(&cmd);
if (ret != 1)
return -1;
#ifdef HAVE_MENU
if (menu_driver_alive())
{
if (menu_driver_iterate((enum menu_action)menu_input_frame_retropad(input, trigger_input)) == -1)
rarch_ctl(RARCH_ACTION_STATE_MENU_RUNNING_FINISHED, NULL);
if (!input && settings->menu.pause_libretro)
return 1;
goto end;
}
#endif
if (!rarch_main_ctl(RARCH_MAIN_CTL_CHECK_STATE, &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)
retro_sleep(settings->video.frame_delay);
/* Run libretro for one frame. */
core.retro_run();
#ifdef HAVE_CHEEVOS
/* Test the achievements. */
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 (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
#ifdef HAVE_MENU
end:
#endif
if (!settings->fastforward_ratio)
return 0;
current = retro_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 = retro_get_time_usec();
return 0;
}
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