input_driver.c File Reference

#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <compat/strl.h>
#include <file/file_path.h>
#include <file/config_file.h>
#include <encodings/utf.h>
#include <string/stdstring.h>
#include <retro_assert.h>
#include "input_mapper.h"
#include "input_driver.h"
#include "input_keymaps.h"
#include "input_remapping.h"
#include "../config.def.keybinds.h"
#include "../msg_hash.h"
#include "../configuration.h"
#include "../file_path_special.h"
#include "../driver.h"
#include "../retroarch.h"
#include "../movie.h"
#include "../list_special.h"
#include "../verbosity.h"
#include "../tasks/tasks_internal.h"
#include "../command.h"
#include "include/gamepad.h"

Include dependency graph for input_driver.c:

This graph shows which files directly or indirectly include this file:

Classes
struct	input_bind_map
struct	turbo_buttons
struct	input_keyboard_line

Macros
#define	DECLARE_BIND(x, bind, desc)   { true, 0, #x, desc, bind }
#define	DECLARE_META_BIND(level, x, bind, desc)   { true, level, #x, desc, bind }
#define	check_input_driver_block_hotkey(normal_bind, autoconf_bind)
#define	ISPRINT(c)   (((int)(c) >= ' ' && (int)(c) <= '~') ? 1 : 0)

Typedefs
typedef struct turbo_buttons	turbo_buttons_t

Functions
void	set_connection_listener (pad_connection_listener_t *listener)
void	fire_connection_listener (unsigned port, input_device_driver_t *driver)
const void *	input_driver_find_handle (int idx)
const char *	input_driver_find_ident (int idx)
const char *	config_get_input_driver_options (void)
void *	input_get_data (void)
const input_driver_t *	input_get_ptr (void)
const input_driver_t **	input_get_double_ptr (void)
bool	input_driver_set_rumble_state (unsigned port, enum retro_rumble_effect effect, uint16_t strength)
const input_device_driver_t *	input_driver_get_joypad_driver (void)
const input_device_driver_t *	input_driver_get_sec_joypad_driver (void)
uint64_t	input_driver_get_capabilities (void)
void	input_driver_set (const input_driver_t **input, void **input_data)
void	input_driver_keyboard_mapping_set_block (bool value)
bool	input_sensor_set_state (unsigned port, enum retro_sensor_action action, unsigned rate)
float	input_sensor_get_input (unsigned port, unsigned id)
void	input_poll (void)
int16_t	input_state (unsigned port, unsigned device, unsigned idx, unsigned id)
void	state_tracker_update_input (uint16_t *input1, uint16_t *input2)
static INLINE bool	input_keys_pressed_iterate (unsigned i, input_bits_t *p_new_state)
int16_t	input_driver_input_state (rarch_joypad_info_t joypad_info, const struct retro_keybind **retro_keybinds, unsigned port, unsigned device, unsigned index, unsigned id)
void	input_keys_pressed (void *data, input_bits_t *p_new_state)
void	input_get_state_for_port (void *data, unsigned port, input_bits_t *p_new_state)
void *	input_driver_get_data (void)
void **	input_driver_get_data_ptr (void)
bool	input_driver_has_capabilities (void)
bool	input_driver_init (void)
void	input_driver_deinit (void)
void	input_driver_destroy_data (void)
void	input_driver_destroy (void)
bool	input_driver_grab_stdin (void)
bool	input_driver_keyboard_mapping_is_blocked (void)
bool	input_driver_find_driver (void)
void	input_driver_set_flushing_input (void)
void	input_driver_unset_hotkey_block (void)
void	input_driver_set_hotkey_block (void)
void	input_driver_set_libretro_input_blocked (void)
void	input_driver_unset_libretro_input_blocked (void)
bool	input_driver_is_libretro_input_blocked (void)
void	input_driver_set_nonblock_state (void)
void	input_driver_unset_nonblock_state (void)
bool	input_driver_is_nonblock_state (void)
void	input_driver_set_own_driver (void)
void	input_driver_unset_own_driver (void)
bool	input_driver_owns_driver (void)
bool	input_driver_init_command (void)
void	input_driver_deinit_command (void)
void	input_driver_deinit_remote (void)
void	input_driver_deinit_mapper (void)
bool	input_driver_init_remote (void)
bool	input_driver_init_mapper (void)
bool	input_driver_grab_mouse (void)
float *	input_driver_get_float (enum input_action action)
unsigned *	input_driver_get_uint (enum input_action action)
bool	input_driver_ungrab_mouse (void)
bool	input_driver_is_data_ptr_same (void *data)
const void *	joypad_driver_find_handle (int idx)
const char *	joypad_driver_find_ident (int idx)
const char *	config_get_joypad_driver_options (void)
const input_device_driver_t *	input_joypad_init_driver (const char *ident, void *data)
const input_device_driver_t *	input_joypad_init_first (void *data)
const char *	input_joypad_name (const input_device_driver_t *drv, unsigned port)
bool	input_joypad_set_rumble (const input_device_driver_t *drv, unsigned port, enum retro_rumble_effect effect, uint16_t strength)
int16_t	input_joypad_analog (const input_device_driver_t *drv, rarch_joypad_info_t joypad_info, unsigned port, unsigned idx, unsigned ident, const struct retro_keybind *binds)
int16_t	input_joypad_axis_raw (const input_device_driver_t *drv, unsigned port, unsigned axis)
bool	input_joypad_button_raw (const input_device_driver_t *drv, unsigned port, unsigned button)
bool	input_joypad_hat_raw (const input_device_driver_t *drv, unsigned port, unsigned hat_dir, unsigned hat)
bool	input_mouse_button_raw (unsigned port, unsigned id)
void	input_pad_connect (unsigned port, input_device_driver_t *driver)
void	input_conv_analog_id_to_bind_id (unsigned idx, unsigned ident, unsigned *ident_minus, unsigned *ident_plus)
static void	osk_update_last_codepoint (const char *word)
static bool	input_keyboard_line_event (input_keyboard_line_t *state, uint32_t character)
bool	input_keyboard_line_append (const char *word)
const char **	input_keyboard_start_line (void *userdata, input_keyboard_line_complete_t cb)

Variables
static pad_connection_listener_t *	pad_connection_listener = NULL
static const input_driver_t *	input_drivers []
static input_device_driver_t *	joypad_drivers []
static const uint8_t	buttons []
static uint16_t	input_config_vid [MAX_USERS]
static uint16_t	input_config_pid [MAX_USERS]
static char	input_device_display_names [MAX_INPUT_DEVICES][64]
static char	input_device_config_names [MAX_INPUT_DEVICES][64]
char	input_device_names [MAX_INPUT_DEVICES][64]
uint64_t	lifecycle_state
struct retro_keybind	input_config_binds [MAX_USERS][RARCH_BIND_LIST_END]
struct retro_keybind	input_autoconf_binds [MAX_USERS][RARCH_BIND_LIST_END]
const struct retro_keybind *	libretro_input_binds [MAX_USERS]
const struct input_bind_map	input_config_bind_map [RARCH_BIND_LIST_END_NULL]
static bool	input_driver_keyboard_linefeed_enable = false
static input_keyboard_line_t *	g_keyboard_line = NULL
static void *	g_keyboard_press_data = NULL
static unsigned	osk_last_codepoint = 0
static unsigned	osk_last_codepoint_len = 0
static input_keyboard_press_t	g_keyboard_press_cb
static turbo_buttons_t	input_driver_turbo_btns
static input_mapper_t *	input_driver_mapper = NULL
static const input_driver_t *	current_input = NULL
static void *	current_input_data = NULL
static bool	input_driver_block_hotkey = false
static bool	input_driver_block_libretro_input = false
static bool	input_driver_nonblock_state = false
bool	input_driver_flushing_input = false
static bool	input_driver_data_own = false
static float	input_driver_axis_threshold = 0.0f
static unsigned	input_driver_max_users = 0

Macro Definition Documentation

check_input_driver_block_hotkey

#define check_input_driver_block_hotkey	(		normal_bind,
			autoconf_bind
	)

Value:

( \
 (((normal_bind)->key != RETROK_UNKNOWN) \
 || ((normal_bind)->mbutton != NO_BTN) \
 || ((normal_bind)->joykey != NO_BTN) \
 || ((normal_bind)->joyaxis != AXIS_NONE) \
 || ((autoconf_bind)->key != RETROK_UNKNOWN ) \
 || ((autoconf_bind)->joykey != NO_BTN) \
 || ((autoconf_bind)->joyaxis != AXIS_NONE)) \
)

check_input_driver_block_hotkey:

Checks if 'hotkey enable' key is pressed.

If we haven't bound anything to this, always allow hotkeys.

If we hold ENABLE_HOTKEY button, block all libretro input to allow hotkeys to be bound to same keys as RetroPad.

DECLARE_BIND

#define DECLARE_BIND	(		x,
			bind,
			desc
	)		{ true, 0, #x, desc, bind }

DECLARE_META_BIND

#define DECLARE_META_BIND	(		level,
			x,
			bind,
			desc
	)		{ true, level, #x, desc, bind }

ISPRINT

#define ISPRINT

(

c

)

(((int)(c) >= ' ' && (int)(c) <= '~') ? 1 : 0)

Typedef Documentation

turbo_buttons_t

typedef struct turbo_buttons turbo_buttons_t

Function Documentation

config_get_input_driver_options()

const char* config_get_input_driver_options

(

void

)

config_get_input_driver_options:

Get an enumerated list of all input driver names, separated by '|'.

Returns: string listing of all input driver names, separated by '|'.

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config_get_joypad_driver_options()

const char* config_get_joypad_driver_options

(

void

)

config_get_joypad_driver_options:

Get an enumerated list of all joypad driver names, separated by '|'.

Returns: string listing of all joypad driver names, separated by '|'.

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fire_connection_listener()

void fire_connection_listener	(	unsigned	port,
		input_device_driver_t *	driver
	)

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input_conv_analog_id_to_bind_id()

void input_conv_analog_id_to_bind_id	(	unsigned	idx,
		unsigned	ident,
		unsigned *	ident_minus,
		unsigned *	ident_plus
	)

input_conv_analog_id_to_bind_id: : Analog key index. E.g.:

• RETRO_DEVICE_INDEX_ANALOG_LEFT
• RETRO_DEVICE_INDEX_ANALOG_RIGHT : Analog key identifier. E.g.:
• RETRO_DEVICE_ID_ANALOG_X
• RETRO_DEVICE_ID_ANALOG_Y : Bind ID minus, will be set by function. : Bind ID plus, will be set by function.

Takes as input analog key identifiers and converts them to corresponding bind IDs and .

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input_driver_deinit()

void input_driver_deinit

(

void

)

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input_driver_deinit_command()

void input_driver_deinit_command

(

void

)

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input_driver_deinit_mapper()

void input_driver_deinit_mapper

(

void

)

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input_driver_deinit_remote()

void input_driver_deinit_remote

(

void

)

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input_driver_destroy()

void input_driver_destroy

(

void

)

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input_driver_destroy_data()

void input_driver_destroy_data

(

void

)

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input_driver_find_driver()

bool input_driver_find_driver

(

void

)

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input_driver_find_handle()

const void* input_driver_find_handle

(

int

idx

)

input_driver_find_handle: : index of driver to get handle to.

Returns: handle to input driver at index. Can be NULL if nothing found.

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input_driver_find_ident()

const char* input_driver_find_ident

(

int

idx

)

input_driver_find_ident: : index of driver to get handle to.

Returns: Human-readable identifier of input driver at index. Can be NULL if nothing found.

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input_driver_get_capabilities()

uint64_t input_driver_get_capabilities

(

void

)

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input_driver_get_data()

void* input_driver_get_data

(

void

)

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input_driver_get_data_ptr()

void** input_driver_get_data_ptr

(

void

)

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input_driver_get_float()

float* input_driver_get_float

(

enum input_action

action

)

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input_driver_get_joypad_driver()

const input_device_driver_t* input_driver_get_joypad_driver

(

void

)

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input_driver_get_sec_joypad_driver()

const input_device_driver_t* input_driver_get_sec_joypad_driver

(

void

)

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input_driver_get_uint()

unsigned* input_driver_get_uint

(

enum input_action

action

)

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input_driver_grab_mouse()

bool input_driver_grab_mouse

(

void

)

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input_driver_grab_stdin()

bool input_driver_grab_stdin

(

void

)

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input_driver_has_capabilities()

bool input_driver_has_capabilities

(

void

)

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input_driver_init()

bool input_driver_init

(

void

)

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input_driver_init_command()

bool input_driver_init_command

(

void

)

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input_driver_init_mapper()

bool input_driver_init_mapper

(

void

)

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input_driver_init_remote()

bool input_driver_init_remote

(

void

)

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input_driver_input_state()

int16_t input_driver_input_state	(	rarch_joypad_info_t	joypad_info,
		const struct retro_keybind **	retro_keybinds,
		unsigned	port,
		unsigned	device,
		unsigned	index,
		unsigned	id
	)

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input_driver_is_data_ptr_same()

bool input_driver_is_data_ptr_same

(

void *

data

)

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input_driver_is_libretro_input_blocked()

bool input_driver_is_libretro_input_blocked

(

void

)

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input_driver_is_nonblock_state()

bool input_driver_is_nonblock_state

(

void

)

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input_driver_keyboard_mapping_is_blocked()

bool input_driver_keyboard_mapping_is_blocked

(

void

)

input_driver_keyboard_mapping_set_block()

void input_driver_keyboard_mapping_set_block

(

bool

value

)

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input_driver_owns_driver()

bool input_driver_owns_driver

(

void

)

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input_driver_set()

void input_driver_set	(	const input_driver_t **	input,
		void **	input_data
	)

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input_driver_set_flushing_input()

void input_driver_set_flushing_input

(

void

)

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input_driver_set_hotkey_block()

void input_driver_set_hotkey_block

(

void

)

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input_driver_set_libretro_input_blocked()

void input_driver_set_libretro_input_blocked

(

void

)

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input_driver_set_nonblock_state()

void input_driver_set_nonblock_state

(

void

)

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input_driver_set_own_driver()

void input_driver_set_own_driver

(

void

)

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input_driver_set_rumble_state()

bool input_driver_set_rumble_state	(	unsigned	port,
		enum retro_rumble_effect	effect,
		uint16_t	strength
	)

input_driver_set_rumble_state: : User number. : Rumble effect. : Strength of rumble effect.

Sets the rumble state. Used by RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE.

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input_driver_ungrab_mouse()

bool input_driver_ungrab_mouse

(

void

)

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input_driver_unset_hotkey_block()

void input_driver_unset_hotkey_block

(

void

)

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input_driver_unset_libretro_input_blocked()

void input_driver_unset_libretro_input_blocked

(

void

)

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input_driver_unset_nonblock_state()

void input_driver_unset_nonblock_state

(

void

)

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input_driver_unset_own_driver()

void input_driver_unset_own_driver

(

void

)

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input_get_data()

void* input_get_data

(

void

)

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input_get_double_ptr()

const input_driver_t** input_get_double_ptr

(

void

)

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input_get_ptr()

const input_driver_t* input_get_ptr

(

void

)

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input_get_state_for_port()

void input_get_state_for_port	(	void *	data,
		unsigned	port,
		input_bits_t *	p_new_state
	)

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input_joypad_analog()

int16_t input_joypad_analog	(	const input_device_driver_t *	drv,
		rarch_joypad_info_t	joypad_info,
		unsigned	port,
		unsigned	idx,
		unsigned	ident,
		const struct retro_keybind *	binds
	)

input_joypad_analog: : Input device driver handle. : User number. : Analog key index. E.g.:

• RETRO_DEVICE_INDEX_ANALOG_LEFT
• RETRO_DEVICE_INDEX_ANALOG_RIGHT : Analog key identifier. E.g.:
• RETRO_DEVICE_ID_ANALOG_X
• RETRO_DEVICE_ID_ANALOG_Y : Binds of user.

Gets analog value of analog key identifiers and from user with number with provided keybinds ().

Returns: analog value on success, otherwise 0.

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input_joypad_axis_raw()

int16_t input_joypad_axis_raw	(	const input_device_driver_t *	drv,
		unsigned	port,
		unsigned	axis
	)

input_joypad_axis_raw: : Input device driver handle. : Joystick number. : Identifier of axis.

Checks if axis () was being pressed by user with joystick number .

Returns: true (1) if axis was pressed, otherwise false (0).

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input_joypad_button_raw()

bool input_joypad_button_raw	(	const input_device_driver_t *	drv,
		unsigned	port,
		unsigned	button
	)

input_joypad_button_raw: : Input device driver handle. : Joystick number. : Identifier of key.

Checks if key () was being pressed by user with joystick number .

Returns: true (1) if key was pressed, otherwise false (0).

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input_joypad_hat_raw()

bool input_joypad_hat_raw	(	const input_device_driver_t *	drv,
		unsigned	port,
		unsigned	hat_dir,
		unsigned	hat
	)

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input_joypad_init_driver()

const input_device_driver_t* input_joypad_init_driver	(	const char *	ident,
		void *	data
	)

input_joypad_init_driver: : identifier of driver to initialize.

Initialize a joypad driver of name .

If ident points to NULL or a zero-length string, equivalent to calling input_joypad_init_first().

Returns: joypad driver if found, otherwise NULL.

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input_joypad_init_first()

const input_device_driver_t* input_joypad_init_first

(

void *

data

)

input_joypad_init_first:

Finds first suitable joypad driver and initializes.

Returns: joypad driver if found, otherwise NULL.

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input_joypad_name()

const char* input_joypad_name	(	const input_device_driver_t *	drv,
		unsigned	port
	)

input_joypad_name: : Input device driver handle. : Joystick number.

Gets name of the joystick ().

Returns: name of joystick port.

input_joypad_set_rumble()

bool input_joypad_set_rumble	(	const input_device_driver_t *	drv,
		unsigned	port,
		enum retro_rumble_effect	effect,
		uint16_t	strength
	)

input_joypad_set_rumble: : Input device driver handle. : User number. : Rumble effect to set. : Strength of rumble effect.

Sets rumble effect with strength .

Returns: true (1) if successful, otherwise false (0).

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input_keyboard_line_append()

bool input_keyboard_line_append

(

const char *

word

)

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input_keyboard_line_event()

static bool input_keyboard_line_event ( input_keyboard_line_t *  state, uint32_t  character  )

static

input_keyboard_line_event: : Input keyboard line handle. : Inputted character.

Called on every keyboard character event.

Returns: true (1) on success, otherwise false (0).

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input_keyboard_start_line()

const char** input_keyboard_start_line	(	void *	userdata,
		input_keyboard_line_complete_t	cb
	)

input_keyboard_start_line: : Userdata. : Line complete callback function.

Sets function pointer for keyboard line handle.

The underlying buffer can be reallocated at any time (or be NULL), but the pointer to it remains constant throughout the objects lifetime.

Returns: underlying buffer of the keyboard line.

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input_keys_pressed()

void input_keys_pressed	(	void *	data,
		input_bits_t *	p_new_state
	)

input_keys_pressed:

Grab an input sample for this frame.

Returns: Input sample containing a mask of all pressed keys.

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input_keys_pressed_iterate()

static INLINE bool input_keys_pressed_iterate ( unsigned  i, input_bits_t *  p_new_state  )

static

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input_mouse_button_raw()

bool input_mouse_button_raw	(	unsigned	port,
		unsigned	id
	)

input_mouse_button_raw: : Mouse number. : Identifier of key (libretro mouse constant).

Checks if key () was being pressed by user with mouse number .

Returns: true (1) if key was pressed, otherwise false (0).

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input_pad_connect()

void input_pad_connect	(	unsigned	port,
		input_device_driver_t *	driver
	)

input_pad_connect: : Joystick number. : handle for joypad driver handling joystick's input

Registers a newly connected pad with RetroArch.

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input_poll()

void input_poll

(

void

)

input_poll:

Input polling callback function.

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input_sensor_get_input()

float input_sensor_get_input	(	unsigned	port,
		unsigned	id
	)

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input_sensor_set_state()

bool input_sensor_set_state	(	unsigned	port,
		enum retro_sensor_action	action,
		unsigned	rate
	)

input_sensor_set_state: : User number. : Sensor action. : Sensor rate update.

Sets the sensor state. Used by RETRO_ENVIRONMENT_GET_SENSOR_INTERFACE.

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input_state()

int16_t input_state	(	unsigned	port,
		unsigned	device,
		unsigned	idx,
		unsigned	id
	)

input_state: : user number. : device identifier of user. : index value of user. : identifier of key pressed by user.

Input state callback function.

Returns: Non-zero if the given key (identified by ) was pressed by the user (assigned to ).

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joypad_driver_find_handle()

const void* joypad_driver_find_handle

(

int

idx

)

joypad_driver_find_handle: : index of driver to get handle to.

Returns: handle to joypad driver at index. Can be NULL if nothing found.

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joypad_driver_find_ident()

const char* joypad_driver_find_ident

(

int

idx

)

joypad_driver_find_ident: : index of driver to get handle to.

Returns: Human-readable identifier of joypad driver at index. Can be NULL if nothing found.

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osk_update_last_codepoint()

static void osk_update_last_codepoint ( const char *  word )

static

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set_connection_listener()

void set_connection_listener

(

pad_connection_listener_t *

listener

)

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state_tracker_update_input()

void state_tracker_update_input	(	uint16_t *	input1,
		uint16_t *	input2
	)

state_tracker_update_input:

Updates 16-bit input in same format as libretro API itself.

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Variable Documentation

buttons

const uint8_t buttons[]

static

Initial value:

= {
 RETRO_DEVICE_ID_JOYPAD_R,
 RETRO_DEVICE_ID_JOYPAD_L,
 RETRO_DEVICE_ID_JOYPAD_X,
 RETRO_DEVICE_ID_JOYPAD_A,
 RETRO_DEVICE_ID_JOYPAD_RIGHT,
 RETRO_DEVICE_ID_JOYPAD_LEFT,
 RETRO_DEVICE_ID_JOYPAD_DOWN,
 RETRO_DEVICE_ID_JOYPAD_UP,
 RETRO_DEVICE_ID_JOYPAD_START,
 RETRO_DEVICE_ID_JOYPAD_SELECT,
 RETRO_DEVICE_ID_JOYPAD_Y,
 RETRO_DEVICE_ID_JOYPAD_B,
}

current_input

const input_driver_t* current_input = NULL

static

current_input_data

void* current_input_data = NULL

static

g_keyboard_line

input_keyboard_line_t* g_keyboard_line = NULL

static

g_keyboard_press_cb

input_keyboard_press_t g_keyboard_press_cb

static

g_keyboard_press_data

void* g_keyboard_press_data = NULL

static

input_autoconf_binds

struct retro_keybind input_autoconf_binds[MAX_USERS][RARCH_BIND_LIST_END]

input_config_bind_map

const struct input_bind_map input_config_bind_map[RARCH_BIND_LIST_END_NULL]

input_config_binds

struct retro_keybind input_config_binds[MAX_USERS][RARCH_BIND_LIST_END]

input_config_pid

uint16_t input_config_pid[MAX_USERS]

static

input_config_vid

uint16_t input_config_vid[MAX_USERS]

static

input_device_config_names

char input_device_config_names[MAX_INPUT_DEVICES][64]

static

input_device_display_names

char input_device_display_names[MAX_INPUT_DEVICES][64]

static

input_device_names

char input_device_names[MAX_INPUT_DEVICES][64]

input_driver_axis_threshold

float input_driver_axis_threshold = 0.0f

static

input_driver_block_hotkey

bool input_driver_block_hotkey = false

static

input_driver_block_libretro_input

bool input_driver_block_libretro_input = false

static

input_driver_data_own

bool input_driver_data_own = false

static

input_driver_flushing_input

bool input_driver_flushing_input = false

input_driver_keyboard_linefeed_enable

bool input_driver_keyboard_linefeed_enable = false

static

input_driver_mapper

input_mapper_t* input_driver_mapper = NULL

static

input_driver_max_users

unsigned input_driver_max_users = 0

static

input_driver_nonblock_state

bool input_driver_nonblock_state = false

static

input_driver_turbo_btns

turbo_buttons_t input_driver_turbo_btns

static

input_drivers

const input_driver_t* input_drivers[]

static

joypad_drivers

input_device_driver_t* joypad_drivers[]

static

libretro_input_binds

const struct retro_keybind* libretro_input_binds[MAX_USERS]

lifecycle_state

uint64_t lifecycle_state

osk_last_codepoint

unsigned osk_last_codepoint = 0

static

osk_last_codepoint_len

unsigned osk_last_codepoint_len = 0

static

pad_connection_listener

pad_connection_listener_t* pad_connection_listener = NULL

static