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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 <file/file_path.h>
#include <retro_inline.h>
#include "dynamic.h"
#include "performance.h"
#include "retroarch_logger.h"
#include "intl/intl.h"
#include "retroarch.h"
#include "runloop.h"
#ifdef HAVE_MENU
#include "menu/menu.h"
#endif
#ifdef HAVE_NETPLAY
#include "netplay.h"
#endif
static struct runloop *g_runloop;
static struct global *g_extern;
/**
* 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(bool pause_pressed, bool frameadvance_pressed)
{
runloop_t *runloop = rarch_main_get_ptr();
static bool old_focus = true;
bool focus = true;
unsigned cmd = RARCH_CMD_NONE;
bool old_is_paused = runloop->is_paused;
settings_t *settings = config_get_ptr();
/* FRAMEADVANCE will set us into pause mode. */
pause_pressed |= !runloop->is_paused && frameadvance_pressed;
if (settings->pause_nonactive)
focus = video_driver_has_focus();
if (focus && pause_pressed)
cmd = RARCH_CMD_PAUSE_TOGGLE;
else if (focus && !old_focus)
cmd = RARCH_CMD_UNPAUSE;
else if (!focus && old_focus)
cmd = RARCH_CMD_PAUSE;
old_focus = focus;
if (cmd != RARCH_CMD_NONE)
rarch_main_command(cmd);
if (runloop->is_paused == old_is_paused)
return false;
return true;
}
/**
* check_is_oneshot:
* @oneshot_pressed : is this a oneshot frame?
* @rewind_pressed : was rewind key pressed?
*
* Checks if the current frame is one-shot frame type.
*
* Rewind buttons works like FRAMEREWIND when paused.
* We will one-shot in that case.
*
* Returns: true if libretro frame is one-shot, otherwise false..
*
**/
static INLINE bool check_is_oneshot(bool oneshot_pressed, bool rewind_pressed)
{
return (oneshot_pressed | rewind_pressed);
}
/**
* 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(bool fastforward_pressed,
bool hold_pressed, bool old_hold_pressed)
{
driver_t *driver = driver_get_ptr();
/* 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(bool pressed_increase, bool pressed_decrease)
{
char msg[PATH_MAX_LENGTH];
settings_t *settings = config_get_ptr();
/* 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), "State slot: %d",
settings->state_slot);
rarch_main_msg_queue_push(msg, 1, 180, true);
RARCH_LOG("%s\n", msg);
}
static INLINE void setup_rewind_audio(void)
{
unsigned i;
global_t *global = global_get_ptr();
/* Push audio ready to be played. */
global->audio_data.rewind_ptr = global->audio_data.rewind_size;
for (i = 0; i < global->audio_data.data_ptr; i += 2)
{
global->audio_data.rewind_buf[--global->audio_data.rewind_ptr] =
global->audio_data.conv_outsamples[i + 1];
global->audio_data.rewind_buf[--global->audio_data.rewind_ptr] =
global->audio_data.conv_outsamples[i + 0];
}
global->audio_data.data_ptr = 0;
}
/**
* check_rewind:
* @pressed : was rewind key pressed or held?
*
* Checks if rewind toggle/hold was being pressed and/or held.
**/
static void check_rewind(bool pressed)
{
static bool first = true;
global_t *global = global_get_ptr();
if (global->rewind.frame_is_reverse)
{
/* We just rewound. Flush rewind audio buffer. */
retro_flush_audio(global->audio_data.rewind_buf
+ global->audio_data.rewind_ptr,
global->audio_data.rewind_size - global->audio_data.rewind_ptr);
global->rewind.frame_is_reverse = false;
}
if (first)
{
first = false;
return;
}
if (!global->rewind.state)
return;
if (pressed)
{
const void *buf = NULL;
runloop_t *runloop = rarch_main_get_ptr();
if (state_manager_pop(global->rewind.state, &buf))
{
global->rewind.frame_is_reverse = true;
setup_rewind_audio();
rarch_main_msg_queue_push(RETRO_MSG_REWINDING, 0,
runloop->is_paused ? 1 : 30, true);
pretro_unserialize(buf, global->rewind.size);
if (global->bsv.movie)
bsv_movie_frame_rewind(global->bsv.movie);
}
else
rarch_main_msg_queue_push(RETRO_MSG_REWIND_REACHED_END,
0, 30, true);
}
else
{
static unsigned cnt = 0;
settings_t *settings = config_get_ptr();
cnt = (cnt + 1) % (settings->rewind_granularity ?
settings->rewind_granularity : 1); /* Avoid possible SIGFPE. */
if ((cnt == 0) || global->bsv.movie)
{
void *state = NULL;
state_manager_push_where(global->rewind.state, &state);
RARCH_PERFORMANCE_INIT(rewind_serialize);
RARCH_PERFORMANCE_START(rewind_serialize);
pretro_serialize(state, global->rewind.size);
RARCH_PERFORMANCE_STOP(rewind_serialize);
state_manager_push_do(global->rewind.state);
}
}
retro_set_rewind_callbacks();
}
/**
* check_slowmotion:
* @slowmotion_pressed : was slow motion key pressed or held?
*
* Checks if slowmotion toggle/hold was being pressed and/or held.
**/
static void check_slowmotion(bool slowmotion_pressed)
{
runloop_t *runloop = rarch_main_get_ptr();
settings_t *settings = config_get_ptr();
global_t *global = global_get_ptr();
runloop->is_slowmotion = slowmotion_pressed;
if (!runloop->is_slowmotion)
return;
if (settings->video.black_frame_insertion)
rarch_render_cached_frame();
rarch_main_msg_queue_push(global->rewind.frame_is_reverse ?
"Slow motion rewind." : "Slow motion.", 0, 30, true);
}
static bool check_movie_init(void)
{
char path[PATH_MAX_LENGTH], msg[PATH_MAX_LENGTH];
bool ret = true;
settings_t *settings = config_get_ptr();
global_t *global = global_get_ptr();
if (global->bsv.movie)
return false;
settings->rewind_granularity = 1;
if (settings->state_slot > 0)
{
snprintf(path, sizeof(path), "%s%d.bsv",
global->bsv.movie_path, settings->state_slot);
}
else
{
snprintf(path, sizeof(path), "%s.bsv",
global->bsv.movie_path);
}
snprintf(msg, sizeof(msg), "Starting movie record to \"%s\".", path);
global->bsv.movie = bsv_movie_init(path, RARCH_MOVIE_RECORD);
if (!global->bsv.movie)
ret = false;
rarch_main_msg_queue_push(global->bsv.movie ?
msg : "Failed to start movie record.", 1, 180, true);
if (global->bsv.movie)
RARCH_LOG("Starting movie record to \"%s\".\n", path);
else
RARCH_ERR("Failed to start movie record.\n");
return ret;
}
/**
* check_movie_record:
*
* Checks if movie is being recorded.
*
* Returns: true (1) if movie is being recorded, otherwise false (0).
**/
static bool check_movie_record(void)
{
global_t *global = global_get_ptr();
if (!global->bsv.movie)
return false;
rarch_main_msg_queue_push(
RETRO_MSG_MOVIE_RECORD_STOPPING, 2, 180, true);
RARCH_LOG(RETRO_LOG_MOVIE_RECORD_STOPPING);
rarch_main_command(RARCH_CMD_BSV_MOVIE_DEINIT);
return true;
}
/**
* check_movie_playback:
*
* Checks if movie is being played.
*
* Returns: true (1) if movie is being played, otherwise false (0).
**/
static bool check_movie_playback(void)
{
global_t *global = global_get_ptr();
if (!global->bsv.movie_end)
return false;
rarch_main_msg_queue_push(
RETRO_MSG_MOVIE_PLAYBACK_ENDED, 1, 180, false);
RARCH_LOG(RETRO_LOG_MOVIE_PLAYBACK_ENDED);
rarch_main_command(RARCH_CMD_BSV_MOVIE_DEINIT);
global->bsv.movie_end = false;
global->bsv.movie_playback = false;
return true;
}
static bool check_movie(void)
{
global_t *global = global_get_ptr();
if (global->bsv.movie_playback)
return check_movie_playback();
if (!global->bsv.movie)
return check_movie_init();
return check_movie_record();
}
/**
* 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(bool pressed_next, bool pressed_prev)
{
char msg[PATH_MAX_LENGTH];
const char *shader = NULL, *ext = NULL;
enum rarch_shader_type type = RARCH_SHADER_NONE;
global_t *global = global_get_ptr();
if (!global->shader_dir.list)
return;
if (pressed_next)
{
global->shader_dir.ptr = (global->shader_dir.ptr + 1) %
global->shader_dir.list->size;
}
else if (pressed_prev)
{
if (global->shader_dir.ptr == 0)
global->shader_dir.ptr = global->shader_dir.list->size - 1;
else
global->shader_dir.ptr--;
}
else
return;
shader = global->shader_dir.list->elems[global->shader_dir.ptr].data;
ext = path_get_extension(shader);
if (strcmp(ext, "glsl") == 0 || strcmp(ext, "glslp") == 0)
type = RARCH_SHADER_GLSL;
else if (strcmp(ext, "cg") == 0 || strcmp(ext, "cgp") == 0)
type = RARCH_SHADER_CG;
else
return;
snprintf(msg, sizeof(msg), "Shader #%u: \"%s\".",
(unsigned)global->shader_dir.ptr, shader);
rarch_main_msg_queue_push(msg, 1, 120, true);
RARCH_LOG("Applying shader \"%s\".\n", shader);
if (!video_driver_set_shader(type, shader))
RARCH_WARN("Failed to apply shader.\n");
}
/**
* check_cheats:
* @trigger_input : difference' input sample - difference
*
* Checks if any one of the cheat keys has been pressed for this frame:
* a) Next cheat index.
* b) Previous cheat index.
* c) Toggle on/off of current cheat index.
**/
static void check_cheats(retro_input_t trigger_input)
{
global_t *global = global_get_ptr();
bool cheat_index_plus_pressed = BIT64_GET(trigger_input,
RARCH_CHEAT_INDEX_PLUS);
bool cheat_index_minus_pressed = BIT64_GET(trigger_input,
RARCH_CHEAT_INDEX_MINUS);
bool cheat_toggle_pressed = BIT64_GET(trigger_input,
RARCH_CHEAT_TOGGLE);
if (cheat_index_plus_pressed)
cheat_manager_index_next(global->cheat);
else if (cheat_index_minus_pressed)
cheat_manager_index_prev(global->cheat);
else if (cheat_toggle_pressed)
cheat_manager_toggle(global->cheat);
}
#ifdef HAVE_MENU
static void do_state_check_menu_toggle(void)
{
runloop_t *runloop = rarch_main_get_ptr();
global_t *global = global_get_ptr();
if (runloop->is_menu)
{
if (global->main_is_init && !global->libretro_dummy)
rarch_main_set_state(RARCH_ACTION_STATE_MENU_RUNNING_FINISHED);
return;
}
rarch_main_set_state(RARCH_ACTION_STATE_MENU_RUNNING);
}
#endif
/**
* do_pre_state_checks:
* @input : input sample for this frame
* @old_input : input sample of the previous frame
* @trigger_input : difference' input sample - difference
* between 'input' and 'old_input'
*
* Checks for state changes in this frame.
*
* Unlike do_state_checks(), this is performed for both
* the menu and the regular loop.
*
* Returns: 0.
**/
static int do_pre_state_checks(
retro_input_t input, retro_input_t old_input,
retro_input_t trigger_input)
{
runloop_t *runloop = rarch_main_get_ptr();
global_t *global = global_get_ptr();
bool fullscreen_toggle = BIT64_GET(trigger_input, RARCH_FULLSCREEN_TOGGLE_KEY);
bool overlay_next_pressed = BIT64_GET(trigger_input, RARCH_OVERLAY_NEXT);
bool grab_mouse_pressed = BIT64_GET(trigger_input, RARCH_GRAB_MOUSE_TOGGLE);
#ifdef HAVE_MENU
bool menu_pressed = BIT64_GET(trigger_input, RARCH_MENU_TOGGLE);
#endif
if (overlay_next_pressed)
rarch_main_command(RARCH_CMD_OVERLAY_NEXT);
if (!runloop->is_paused || runloop->is_menu)
{
if (fullscreen_toggle)
rarch_main_command(RARCH_CMD_FULLSCREEN_TOGGLE);
}
if (grab_mouse_pressed)
rarch_main_command(RARCH_CMD_GRAB_MOUSE_TOGGLE);
#ifdef HAVE_MENU
if (menu_pressed || (global->libretro_dummy))
do_state_check_menu_toggle();
#endif
return 0;
}
#ifdef HAVE_NETPLAY
static int do_netplay_state_checks(
retro_input_t input, retro_input_t old_input,
retro_input_t trigger_input)
{
bool netplay_flip_pressed = BIT64_GET(trigger_input, RARCH_NETPLAY_FLIP);
bool fullscreen_toggle = BIT64_GET(trigger_input, RARCH_FULLSCREEN_TOGGLE_KEY);
if (netplay_flip_pressed)
rarch_main_command(RARCH_CMD_NETPLAY_FLIP_PLAYERS);
if (fullscreen_toggle)
rarch_main_command(RARCH_CMD_FULLSCREEN_TOGGLE);
return 0;
}
#endif
static int do_pause_state_checks(
retro_input_t input, retro_input_t old_input,
retro_input_t trigger_input)
{
runloop_t *runloop = rarch_main_get_ptr();
bool fullscreen_toggle_pressed = BIT64_GET(trigger_input,
RARCH_FULLSCREEN_TOGGLE_KEY);
bool pause_pressed = BIT64_GET(trigger_input, RARCH_PAUSE_TOGGLE);
bool frameadvance_pressed = BIT64_GET(trigger_input, RARCH_FRAMEADVANCE);
bool oneshot_pressed = BIT64_GET(trigger_input, RARCH_FRAMEADVANCE);
bool rewind_pressed = BIT64_GET(trigger_input, RARCH_REWIND);
check_pause(pause_pressed, frameadvance_pressed);
if (!runloop->is_paused)
return 0;
if (fullscreen_toggle_pressed)
{
rarch_main_command(RARCH_CMD_FULLSCREEN_TOGGLE);
rarch_render_cached_frame();
}
if (!check_is_oneshot(oneshot_pressed, rewind_pressed))
return 1;
return 0;
}
/**
* do_state_checks:
* @input : input sample for this frame
* @old_input : input sample of the previous frame
* @trigger_input : difference' input sample - difference
* between 'input' and 'old_input'
*
* Checks for state changes in this frame.
*
* Returns: 1 if RetroArch is in pause mode, 0 otherwise.
**/
static int do_state_checks(
retro_input_t input, retro_input_t old_input,
retro_input_t trigger_input)
{
driver_t *driver = driver_get_ptr();
runloop_t *runloop = rarch_main_get_ptr();
global_t *global = global_get_ptr();
bool screenshot_pressed = BIT64_GET(trigger_input, RARCH_SCREENSHOT);
bool mute_pressed = BIT64_GET(trigger_input, RARCH_MUTE);
bool volume_up_pressed = BIT64_GET(input, RARCH_VOLUME_UP);
bool volume_down_pressed = BIT64_GET(input, RARCH_VOLUME_DOWN);
bool reset_pressed = BIT64_GET(trigger_input, RARCH_RESET);
bool disk_prev_pressed = BIT64_GET(trigger_input, RARCH_DISK_PREV);
bool disk_next_pressed = BIT64_GET(trigger_input, RARCH_DISK_NEXT);
bool disk_eject_pressed = BIT64_GET(trigger_input, RARCH_DISK_EJECT_TOGGLE);
bool movie_record = BIT64_GET(trigger_input, RARCH_MOVIE_RECORD_TOGGLE);
bool save_state_pressed = BIT64_GET(trigger_input, RARCH_SAVE_STATE_KEY);
bool load_state_pressed = BIT64_GET(trigger_input, RARCH_LOAD_STATE_KEY);
bool rewind_pressed = BIT64_GET(input, RARCH_REWIND);
bool slowmotion_pressed = BIT64_GET(input, RARCH_SLOWMOTION);
bool shader_next_pressed = BIT64_GET(trigger_input, RARCH_SHADER_NEXT);
bool shader_prev_pressed = BIT64_GET(trigger_input, RARCH_SHADER_PREV);
bool fastforward_pressed = BIT64_GET(trigger_input, RARCH_FAST_FORWARD_KEY);
bool hold_pressed = BIT64_GET(input, RARCH_FAST_FORWARD_HOLD_KEY);
bool old_hold_pressed = BIT64_GET(old_input, RARCH_FAST_FORWARD_HOLD_KEY);
bool state_slot_increase = BIT64_GET(trigger_input, RARCH_STATE_SLOT_PLUS);
bool state_slot_decrease = BIT64_GET(trigger_input, RARCH_STATE_SLOT_MINUS);
(void)driver;
if (runloop->is_idle)
return 1;
if (screenshot_pressed)
rarch_main_command(RARCH_CMD_TAKE_SCREENSHOT);
if (mute_pressed)
rarch_main_command(RARCH_CMD_AUDIO_MUTE_TOGGLE);
if (volume_up_pressed)
rarch_main_command(RARCH_CMD_VOLUME_UP);
else if (volume_down_pressed)
rarch_main_command(RARCH_CMD_VOLUME_DOWN);
#ifdef HAVE_NETPLAY
if (driver->netplay_data)
return do_netplay_state_checks(input,
old_input, trigger_input);
#endif
if (do_pause_state_checks(input, old_input,
trigger_input))
return 1;
check_fast_forward_button(fastforward_pressed, hold_pressed, old_hold_pressed);
check_stateslots(state_slot_increase, state_slot_decrease);
if (save_state_pressed)
rarch_main_command(RARCH_CMD_SAVE_STATE);
else if (load_state_pressed)
rarch_main_command(RARCH_CMD_LOAD_STATE);
check_rewind(rewind_pressed);
check_slowmotion(slowmotion_pressed);
if (movie_record)
check_movie();
check_shader_dir(shader_next_pressed, shader_prev_pressed);
if (disk_eject_pressed)
rarch_main_command(RARCH_CMD_DISK_EJECT_TOGGLE);
else if (disk_next_pressed)
rarch_main_command(RARCH_CMD_DISK_NEXT);
else if (disk_prev_pressed)
rarch_main_command(RARCH_CMD_DISK_PREV);
if (reset_pressed)
rarch_main_command(RARCH_CMD_RESET);
if (global->cheat)
check_cheats(trigger_input);
return 0;
}
/**
* time_to_exit:
* @input : input sample for this frame
*
* rarch_main_iterate() checks this to see if it's 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)
*
* Returns: 1 if any of the above conditions are true, otherwise 0.
**/
static INLINE int time_to_exit(retro_input_t input)
{
runloop_t *runloop = rarch_main_get_ptr();
global_t *global = global_get_ptr();
bool shutdown_pressed = global->system.shutdown;
bool quit_key_pressed = BIT64_GET(input, RARCH_QUIT_KEY);
bool video_alive = video_driver_is_alive();
bool movie_end = (global->bsv.movie_end && global->bsv.eof_exit);
bool frame_count_end = (runloop->frames.video.max &&
runloop->frames.video.count >= runloop->frames.video.max);
if (shutdown_pressed || quit_key_pressed || frame_count_end || movie_end
|| !video_alive)
return 1;
return 0;
}
/**
* rarch_update_frame_time:
*
* Updates frame timing if frame timing callback is in use by the core.
**/
static void rarch_update_frame_time(void)
{
runloop_t *runloop = rarch_main_get_ptr();
driver_t *driver = driver_get_ptr();
settings_t *settings = config_get_ptr();
retro_time_t curr_time = rarch_get_time_usec();
global_t *global = global_get_ptr();
retro_time_t delta = curr_time - global->system.frame_time_last;
bool is_locked_fps = runloop->is_paused || driver->nonblock_state;
is_locked_fps |= !!driver->recording_data;
if (!global->system.frame_time_last || is_locked_fps)
delta = global->system.frame_time.reference;
if (!is_locked_fps && runloop->is_slowmotion)
delta /= settings->slowmotion_ratio;
global->system.frame_time_last = curr_time;
if (is_locked_fps)
global->system.frame_time_last = 0;
global->system.frame_time.callback(delta);
}
/**
* rarch_limit_frame_time:
*
* Limit frame time if fast forward ratio throttle is enabled.
**/
static void rarch_limit_frame_time(void)
{
retro_time_t target = 0, to_sleep_ms = 0;
runloop_t *runloop = rarch_main_get_ptr();
settings_t *settings = config_get_ptr();
global_t *global = global_get_ptr();
retro_time_t current = rarch_get_time_usec();
double effective_fps = global->system.av_info.timing.fps
* settings->fastforward_ratio;
double mft_f = 1000000.0f / effective_fps;
runloop->frames.limit.minimum_time = (retro_time_t) roundf(mft_f);
target = runloop->frames.limit.last_time +
runloop->frames.limit.minimum_time;
to_sleep_ms = (target - current) / 1000;
if (to_sleep_ms <= 0)
{
runloop->frames.limit.last_time = rarch_get_time_usec();
return;
}
rarch_sleep((unsigned int)to_sleep_ms);
/* Combat jitter a bit. */
runloop->frames.limit.last_time +=
runloop->frames.limit.minimum_time;
}
/**
* check_block_hotkey:
* @enable_hotkey : Is hotkey enable key enabled?
*
* Checks if 'hotkey enable' key is pressed.
**/
static bool check_block_hotkey(bool enable_hotkey)
{
bool use_hotkey_enable;
settings_t *settings = config_get_ptr();
driver_t *driver = driver_get_ptr();
const struct retro_keybind *bind =
&settings->input.binds[0][RARCH_ENABLE_HOTKEY];
const struct retro_keybind *autoconf_bind =
&settings->input.autoconf_binds[0][RARCH_ENABLE_HOTKEY];
/* Don't block the check to RARCH_ENABLE_HOTKEY
* unless we're really supposed to. */
driver->block_hotkey = driver->block_input;
// If we haven't bound anything to this, always allow hotkeys.
use_hotkey_enable = bind->key != RETROK_UNKNOWN ||
bind->joykey != NO_BTN ||
bind->joyaxis != AXIS_NONE ||
autoconf_bind->key != RETROK_UNKNOWN ||
autoconf_bind->joykey != NO_BTN ||
autoconf_bind->joyaxis != AXIS_NONE;
driver->block_hotkey = driver->block_input ||
(use_hotkey_enable && !enable_hotkey);
/* If we hold ENABLE_HOTKEY button, block all libretro input to allow
* hotkeys to be bound to same keys as RetroPad. */
return (use_hotkey_enable && enable_hotkey);
}
/**
* input_keys_pressed:
*
* Grab an input sample for this frame.
*
* TODO: In case RARCH_BIND_LIST_END starts exceeding 64,
* and you need a bitmask of more than 64 entries, reimplement
* it to use something like rarch_bits_t.
*
* Returns: Input sample containg a mask of all pressed keys.
*/
static INLINE retro_input_t input_keys_pressed(void)
{
unsigned i;
retro_input_t ret = 0;
driver_t *driver = driver_get_ptr();
settings_t *settings = config_get_ptr();
global_t *global = global_get_ptr();
const struct retro_keybind *binds[MAX_USERS] = {
settings->input.binds[0],
settings->input.binds[1],
settings->input.binds[2],
settings->input.binds[3],
settings->input.binds[4],
settings->input.binds[5],
settings->input.binds[6],
settings->input.binds[7],
settings->input.binds[8],
settings->input.binds[9],
settings->input.binds[10],
settings->input.binds[11],
settings->input.binds[12],
settings->input.binds[13],
settings->input.binds[14],
settings->input.binds[15],
};
if (!driver->input || !driver->input_data)
return 0;
global->turbo_count++;
driver->block_libretro_input = check_block_hotkey(
driver->input->key_pressed(driver->input_data,
RARCH_ENABLE_HOTKEY));
for (i = 0; i < settings->input.max_users; i++)
{
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]);
global->turbo_frame_enable[i] = 0;
}
if (!driver->block_libretro_input)
{
for (i = 0; i < settings->input.max_users; i++)
{
global->turbo_frame_enable[i] =
driver->input->input_state(driver->input_data, binds, i,
RETRO_DEVICE_JOYPAD, 0, RARCH_TURBO_ENABLE);
}
}
ret = input_driver_keys_pressed();
for (i = 0; i < settings->input.max_users; i++)
{
input_pop_analog_dpad(settings->input.binds[i]);
input_pop_analog_dpad(settings->input.autoconf_binds[i]);
}
return ret;
}
/**
* input_flush:
* @input : input sample for this frame
*
* Resets input sample.
*
* Returns: always true (1).
**/
static bool input_flush(retro_input_t *input)
{
runloop_t *runloop = rarch_main_get_ptr();
*input = 0;
/* If core was paused before entering menu, evoke
* pause toggle to wake it up. */
if (runloop->is_paused)
BIT64_SET(*input, RARCH_PAUSE_TOGGLE);
return true;
}
/**
* rarch_main_load_dummy_core:
*
* Quits out of RetroArch main loop.
*
* On special case, loads dummy core
* instead of exiting RetroArch completely.
* Aborts core shutdown if invoked.
*
* Returns: -1 if we are about to quit, otherwise 0.
**/
static int rarch_main_iterate_quit(void)
{
settings_t *settings = config_get_ptr();
global_t *global = global_get_ptr();
if (global->core_shutdown_initiated
&& settings->load_dummy_on_core_shutdown)
{
rarch_main_data_deinit();
if (!rarch_main_command(RARCH_CMD_PREPARE_DUMMY))
return -1;
global->core_shutdown_initiated = false;
return 0;
}
return -1;
}
#ifdef HAVE_OVERLAY
static void rarch_main_iterate_linefeed_overlay(void)
{
static char prev_overlay_restore = false;
driver_t *driver = driver_get_ptr();
if (driver->osk_enable && !driver->keyboard_linefeed_enable)
{
driver->osk_enable = false;
prev_overlay_restore = true;
rarch_main_command(RARCH_CMD_OVERLAY_DEINIT);
return;
}
else if (!driver->osk_enable && driver->keyboard_linefeed_enable)
{
driver->osk_enable = true;
prev_overlay_restore = false;
rarch_main_command(RARCH_CMD_OVERLAY_INIT);
return;
}
else if (prev_overlay_restore)
{
rarch_main_command(RARCH_CMD_OVERLAY_INIT);
prev_overlay_restore = false;
}
}
#endif
const char *rarch_main_msg_queue_pull(void)
{
runloop_t *runloop = rarch_main_get_ptr();
return msg_queue_pull(runloop->msg_queue);
}
void rarch_main_msg_queue_push(const char *msg, unsigned prio, unsigned duration,
bool flush)
{
runloop_t *runloop = rarch_main_get_ptr();
if (!runloop->msg_queue)
return;
if (flush)
msg_queue_clear(runloop->msg_queue);
msg_queue_push(runloop->msg_queue, msg, prio, duration);
}
void rarch_main_msg_queue_free(void)
{
runloop_t *runloop = rarch_main_get_ptr();
if (runloop->msg_queue)
msg_queue_free(runloop->msg_queue);
runloop->msg_queue = NULL;
}
void rarch_main_msg_queue_init(void)
{
runloop_t *runloop = rarch_main_get_ptr();
if (!runloop->msg_queue)
rarch_assert(runloop->msg_queue = msg_queue_new(8));
}
global_t *global_get_ptr(void)
{
return g_extern;
}
runloop_t *rarch_main_get_ptr(void)
{
return g_runloop;
}
void rarch_main_state_deinit(void)
{
runloop_t *runloop = rarch_main_get_ptr();
if (!runloop)
return;
free(runloop);
}
void rarch_main_global_deinit(void)
{
global_t *global = NULL;
rarch_main_command(RARCH_CMD_TEMPORARY_CONTENT_DEINIT);
rarch_main_command(RARCH_CMD_SUBSYSTEM_FULLPATHS_DEINIT);
rarch_main_command(RARCH_CMD_RECORD_DEINIT);
rarch_main_command(RARCH_CMD_LOG_FILE_DEINIT);
global = global_get_ptr();
if (!global)
return;
free(global);
}
bool rarch_main_verbosity(void)
{
global_t *global = global_get_ptr();
if (!global)
return false;
return global->verbosity;
}
FILE *rarch_main_log_file(void)
{
global_t *global = global_get_ptr();
if (!global)
return NULL;
return global->log_file;
}
static global_t *rarch_main_global_init(void)
{
global_t *global = (global_t*)calloc(1, sizeof(global_t));
if (!global)
return NULL;
return global;
}
static runloop_t *rarch_main_state_init(void)
{
runloop_t *runloop = (runloop_t*)calloc(1, sizeof(runloop_t));
if (!runloop)
return NULL;
return runloop;
}
void rarch_main_clear_state(void)
{
rarch_main_state_deinit();
g_runloop = rarch_main_state_init();
rarch_main_global_deinit();
g_extern = rarch_main_global_init();
}
bool rarch_main_is_idle(void)
{
runloop_t *runloop = rarch_main_get_ptr();
return runloop->is_idle;
}
/**
* rarch_main_iterate:
*
* Run Libretro core in RetroArch for one frame.
*
* Returns: 0 on success, 1 if we have to wait until button input in order
* to wake up the loop, -1 if we forcibly quit out of the RetroArch iteration loop.
**/
int rarch_main_iterate(void)
{
unsigned i;
retro_input_t trigger_input;
runloop_t *runloop = rarch_main_get_ptr();
int ret = 0;
static retro_input_t last_input = 0;
retro_input_t old_input = last_input;
retro_input_t input = input_keys_pressed();
last_input = input;
driver_t *driver = driver_get_ptr();
settings_t *settings = config_get_ptr();
global_t *global = global_get_ptr();
if (driver->flushing_input)
driver->flushing_input = (input) ? input_flush(&input) : false;
trigger_input = input & ~old_input;
if (time_to_exit(input))
return rarch_main_iterate_quit();
if (global->system.frame_time.callback)
rarch_update_frame_time();
do_pre_state_checks(input, old_input, trigger_input);
#ifdef HAVE_OVERLAY
rarch_main_iterate_linefeed_overlay();
#endif
rarch_main_data_iterate();
#ifdef HAVE_MENU
if (runloop->is_menu)
{
menu_handle_t *menu = menu_driver_get_ptr();
if (menu)
if (menu_iterate(input, old_input, trigger_input) == -1)
rarch_main_set_state(RARCH_ACTION_STATE_MENU_RUNNING_FINISHED);
if (!input && settings->menu.pause_libretro)
ret = 1;
goto success;
}
#endif
if (global->exec)
{
global->exec = false;
return rarch_main_iterate_quit();
}
if (do_state_checks(input, old_input, trigger_input))
{
/* RetroArch has been paused */
driver->retro_ctx.poll_cb();
rarch_sleep(10);
return 1;
}
#if defined(HAVE_THREADS)
lock_autosave();
#endif
#ifdef HAVE_NETPLAY
if (driver->netplay_data)
netplay_pre_frame((netplay_t*)driver->netplay_data);
#endif
if (global->bsv.movie)
bsv_movie_set_frame_start(global->bsv.movie);
if (global->system.camera_callback.caps)
driver_camera_poll();
/* Update binds for analog dpad modes. */
for (i = 0; i < settings->input.max_users; i++)
{
if (!settings->input.analog_dpad_mode[i])
continue;
input_push_analog_dpad(settings->input.binds[i],
settings->input.analog_dpad_mode[i]);
input_push_analog_dpad(settings->input.autoconf_binds[i],
settings->input.analog_dpad_mode[i]);
}
if ((settings->video.frame_delay > 0) && !driver->nonblock_state)
rarch_sleep(settings->video.frame_delay);
/* Run libretro for one frame. */
pretro_run();
for (i = 0; i < settings->input.max_users; i++)
{
if (!settings->input.analog_dpad_mode[i])
continue;
input_pop_analog_dpad(settings->input.binds[i]);
input_pop_analog_dpad(settings->input.autoconf_binds[i]);
}
if (global->bsv.movie)
bsv_movie_set_frame_end(global->bsv.movie);
#ifdef HAVE_NETPLAY
if (driver->netplay_data)
netplay_post_frame((netplay_t*)driver->netplay_data);
#endif
#if defined(HAVE_THREADS)
unlock_autosave();
#endif
success:
if (settings->fastforward_ratio_throttle_enable)
rarch_limit_frame_time();
return ret;
}
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