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RetroArch/input/input_driver.h
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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
*
* 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/>.
*/
#ifndef __INPUT_DRIVER__H
#define __INPUT_DRIVER__H
#include <stdint.h>
#include <stdlib.h>
#include <stddef.h>
#include <sys/types.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <boolean.h>
#include <retro_common_api.h>
#include <retro_inline.h>
#include <libretro.h>
#include "input_defines.h"
#include "../msg_hash.h"
RETRO_BEGIN_DECLS
typedef struct rarch_joypad_driver input_device_driver_t;
typedef struct hid_driver hid_driver_t;
/* Keyboard line reader. Handles textual input in a direct fashion. */
typedef struct input_keyboard_line input_keyboard_line_t;
enum input_device_type
{
INPUT_DEVICE_TYPE_NONE = 0,
INPUT_DEVICE_TYPE_KEYBOARD,
INPUT_DEVICE_TYPE_JOYPAD
};
enum input_toggle_type
{
INPUT_TOGGLE_NONE = 0,
INPUT_TOGGLE_DOWN_Y_L_R,
INPUT_TOGGLE_L3_R3,
INPUT_TOGGLE_L1_R1_START_SELECT,
INPUT_TOGGLE_START_SELECT,
INPUT_TOGGLE_LAST
};
enum input_action
{
INPUT_ACTION_NONE = 0,
INPUT_ACTION_AXIS_THRESHOLD,
INPUT_ACTION_MAX_USERS
};
enum rarch_input_keyboard_ctl_state
{
RARCH_INPUT_KEYBOARD_CTL_NONE = 0,
RARCH_INPUT_KEYBOARD_CTL_SET_LINEFEED_ENABLED,
RARCH_INPUT_KEYBOARD_CTL_UNSET_LINEFEED_ENABLED,
RARCH_INPUT_KEYBOARD_CTL_IS_LINEFEED_ENABLED,
RARCH_INPUT_KEYBOARD_CTL_LINE_FREE,
/*
* Waits for keys to be pressed (used for binding
* keys in the menu).
* Callback returns false when all polling is done.
**/
RARCH_INPUT_KEYBOARD_CTL_START_WAIT_KEYS,
/* Cancels keyboard wait for keys function callback. */
RARCH_INPUT_KEYBOARD_CTL_CANCEL_WAIT_KEYS
};
struct retro_keybind
{
bool valid;
uint16_t id;
enum msg_hash_enums enum_idx;
enum retro_key key;
/* Joypad key. Joypad POV (hats)
* are embedded into this key as well. */
uint64_t joykey;
/* Default key binding value -
* for resetting bind to default */
uint64_t def_joykey;
/* Joypad axis. Negative and positive axes
* are embedded into this variable. */
uint32_t joyaxis;
/* Default joy axis binding value -
* for resetting bind to default */
uint32_t def_joyaxis;
/* Used by input_{push,pop}_analog_dpad(). */
uint32_t orig_joyaxis;
char *joykey_label;
char *joyaxis_label;
};
typedef struct rarch_joypad_info
{
uint16_t joy_idx;
const struct retro_keybind *auto_binds;
float axis_threshold;
} rarch_joypad_info_t;
typedef struct input_driver
{
/* Inits input driver.
*/
void *(*init)(const char *joypad_driver);
/* Polls input. Called once every frame. */
void (*poll)(void *data);
/* Queries input state for a certain key on a certain player.
* Players are 1 - MAX_USERS.
* For digital inputs, pressed key is 1, not pressed key is 0.
* Analog values have same range as a signed 16-bit integer.
*/
int16_t (*input_state)(void *data,
rarch_joypad_info_t joypad_info,
const struct retro_keybind **retro_keybinds,
unsigned port, unsigned device, unsigned index, unsigned id);
bool (*meta_key_pressed)(void *data, int key);
/* Frees the input struct. */
void (*free)(void *data);
bool (*set_sensor_state)(void *data, unsigned port,
enum retro_sensor_action action, unsigned rate);
float (*get_sensor_input)(void *data, unsigned port, unsigned id);
uint64_t (*get_capabilities)(void *data);
const char *ident;
void (*grab_mouse)(void *data, bool state);
bool (*grab_stdin)(void *data);
bool (*set_rumble)(void *data, unsigned port,
enum retro_rumble_effect effect, uint16_t state);
const input_device_driver_t *(*get_joypad_driver)(void *data);
const input_device_driver_t *(*get_sec_joypad_driver)(void *data);
bool (*keyboard_mapping_is_blocked)(void *data);
void (*keyboard_mapping_set_block)(void *data, bool value);
} input_driver_t;
struct rarch_joypad_driver
{
bool (*init)(void *data);
bool (*query_pad)(unsigned);
void (*destroy)(void);
bool (*button)(unsigned, uint16_t);
uint64_t (*get_buttons)(unsigned);
int16_t (*axis)(unsigned, uint32_t);
void (*poll)(void);
bool (*set_rumble)(unsigned, enum retro_rumble_effect, uint16_t);
const char *(*name)(unsigned);
const char *ident;
};
struct hid_driver
{
void *(*init)(void);
bool (*query_pad)(void *, unsigned);
void (*free)(void *);
bool (*button)(void *, unsigned, uint16_t);
uint64_t (*get_buttons)(void *, unsigned);
int16_t (*axis)(void *, unsigned, uint32_t);
void (*poll)(void *);
bool (*set_rumble)(void *, unsigned, enum retro_rumble_effect, uint16_t);
const char *(*name)(void *, unsigned);
const char *ident;
};
extern const input_driver_t *current_input;
extern void *current_input_data;
/**
* input_driver_find_handle:
* @index : index of driver to get handle to.
*
* Returns: handle to input driver at index. Can be NULL
* if nothing found.
**/
const void *input_driver_find_handle(int index);
/**
* input_driver_find_ident:
* @index : index of driver to get handle to.
*
* Returns: Human-readable identifier of input driver at index. Can be NULL
* if nothing found.
**/
const char *input_driver_find_ident(int index);
/**
* 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 '|'.
**/
const char* config_get_input_driver_options(void);
/**
* input_driver_set_rumble_state:
* @port : User number.
* @effect : Rumble effect.
* @strength : Strength of rumble effect.
*
* Sets the rumble state.
* Used by RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE.
**/
bool input_driver_set_rumble_state(unsigned port,
enum retro_rumble_effect effect, uint16_t strength);
uint64_t input_driver_get_capabilities(void);
const input_device_driver_t * input_driver_get_joypad_driver(void);
const input_device_driver_t * input_driver_get_sec_joypad_driver(void);
void input_driver_keyboard_mapping_set_block(bool value);
void input_driver_set(const input_driver_t **input, void **input_data);
/**
* input_sensor_set_state:
* @port : User number.
* @effect : Sensor action.
* @rate : Sensor rate update.
*
* Sets the sensor state.
* Used by RETRO_ENVIRONMENT_GET_SENSOR_INTERFACE.
**/
bool input_sensor_set_state(unsigned port,
enum retro_sensor_action action, unsigned rate);
float input_sensor_get_input(unsigned port, unsigned id);
#define inherit_joyaxis(binds) (((binds)[x_plus].joyaxis == (binds)[x_minus].joyaxis) || ( (binds)[y_plus].joyaxis == (binds)[y_minus].joyaxis))
/**
* input_pop_analog_dpad:
* @binds : Binds to modify.
*
* Restores binds temporarily overridden by input_push_analog_dpad().
**/
#define input_pop_analog_dpad(binds) \
{ \
unsigned j; \
for (j = RETRO_DEVICE_ID_JOYPAD_UP; j <= RETRO_DEVICE_ID_JOYPAD_RIGHT; j++) \
(binds)[j].joyaxis = (binds)[j].orig_joyaxis; \
}
/**
* input_push_analog_dpad:
* @binds : Binds to modify.
* @mode : Which analog stick to bind D-Pad to.
* E.g:
* ANALOG_DPAD_LSTICK
* ANALOG_DPAD_RSTICK
*
* Push analog to D-Pad mappings to binds.
**/
#define input_push_analog_dpad(binds, mode) \
{ \
unsigned k; \
unsigned x_plus = RARCH_ANALOG_RIGHT_X_PLUS; \
unsigned y_plus = RARCH_ANALOG_RIGHT_Y_PLUS; \
unsigned x_minus = RARCH_ANALOG_RIGHT_X_MINUS; \
unsigned y_minus = RARCH_ANALOG_RIGHT_Y_MINUS; \
if ((mode) == ANALOG_DPAD_LSTICK) \
{ \
x_plus = RARCH_ANALOG_LEFT_X_PLUS; \
y_plus = RARCH_ANALOG_LEFT_Y_PLUS; \
x_minus = RARCH_ANALOG_LEFT_X_MINUS; \
y_minus = RARCH_ANALOG_LEFT_Y_MINUS; \
} \
for (k = RETRO_DEVICE_ID_JOYPAD_UP; k <= RETRO_DEVICE_ID_JOYPAD_RIGHT; k++) \
(binds)[k].orig_joyaxis = (binds)[k].joyaxis; \
if (!inherit_joyaxis(binds)) \
{ \
unsigned j = x_plus + 3; \
/* Inherit joyaxis from analogs. */ \
for (k = RETRO_DEVICE_ID_JOYPAD_UP; k <= RETRO_DEVICE_ID_JOYPAD_RIGHT; k++) \
(binds)[k].joyaxis = (binds)[j--].joyaxis; \
} \
}
/**
* input_poll:
*
* Input polling callback function.
**/
void input_poll(void);
/**
* input_state:
* @port : user number.
* @device : device identifier of user.
* @idx : index value of user.
* @id : identifier of key pressed by user.
*
* Input state callback function.
*
* Returns: Non-zero if the given key (identified by @id) was pressed by the user
* (assigned to @port).
**/
int16_t input_state(unsigned port, unsigned device,
unsigned idx, unsigned id);
uint64_t input_keys_pressed(void *data, uint64_t last_input);
#ifdef HAVE_MENU
uint64_t input_menu_keys_pressed(void *data, uint64_t last_input);
#endif
void *input_driver_get_data(void);
const input_driver_t *input_get_ptr(void);
const input_driver_t **input_get_double_ptr(void);
void **input_driver_get_data_ptr(void);
bool input_driver_has_capabilities(void);
void input_driver_poll(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);
void input_driver_deinit_command(void);
bool input_driver_init_command(void);
void input_driver_deinit_remote(void);
bool input_driver_init_remote(void);
void input_driver_deinit_mapper(void);
bool input_driver_init_mapper(void);
bool input_driver_grab_mouse(void);
bool input_driver_ungrab_mouse(void);
float *input_driver_get_float(enum input_action action);
unsigned *input_driver_get_uint(enum input_action action);
bool input_driver_is_data_ptr_same(void *data);
/**
* joypad_driver_find_handle:
* @index : index of driver to get handle to.
*
* Returns: handle to joypad driver at index. Can be NULL
* if nothing found.
**/
const void *joypad_driver_find_handle(int index);
/**
* joypad_driver_find_ident:
* @index : index of driver to get handle to.
*
* Returns: Human-readable identifier of joypad driver at index. Can be NULL
* if nothing found.
**/
const char *joypad_driver_find_ident(int index);
/**
* 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 '|'.
**/
const char* config_get_joypad_driver_options(void);
/**
* input_joypad_init_driver:
* @ident : identifier of driver to initialize.
*
* Initialize a joypad driver of name @ident.
*
* If ident points to NULL or a zero-length string,
* equivalent to calling input_joypad_init_first().
*
* Returns: joypad driver if found, otherwise NULL.
**/
const input_device_driver_t *input_joypad_init_driver(const char *ident, void *data);
/**
* input_joypad_init_first:
*
* Finds first suitable joypad driver and initializes.
*
* Returns: joypad driver if found, otherwise NULL.
**/
const input_device_driver_t *input_joypad_init_first(void *data);
/**
* input_conv_analog_id_to_bind_id:
* @idx : Analog key index.
* E.g.:
* - RETRO_DEVICE_INDEX_ANALOG_LEFT
* - RETRO_DEVICE_INDEX_ANALOG_RIGHT
* @ident : Analog key identifier.
* E.g.:
* - RETRO_DEVICE_ID_ANALOG_X
* - RETRO_DEVICE_ID_ANALOG_Y
* @ident_minus : Bind ID minus, will be set by function.
* @ident_plus : Bind ID plus, will be set by function.
*
* Takes as input analog key identifiers and converts
* them to corresponding bind IDs @ident_minus and @ident_plus.
**/
void input_conv_analog_id_to_bind_id(unsigned idx, unsigned ident,
unsigned *ident_minus, unsigned *ident_plus);
/**
* input_joypad_pressed:
* @drv : Input device driver handle.
* @port : User number.
* @binds : Binds of user.
* @key : Identifier of key.
*
* Checks if key (@key) was being pressed by user
* with number @port with provided keybinds (@binds).
*
* Returns: true (1) if key was pressed, otherwise
* false (0).
**/
static INLINE bool input_joypad_pressed(
const input_device_driver_t *drv,
rarch_joypad_info_t joypad_info,
unsigned port,
const struct retro_keybind *binds,
unsigned key)
{
/* Auto-binds are per joypad, not per user. */
uint64_t joykey = (binds[key].joykey != NO_BTN)
? binds[key].joykey : joypad_info.auto_binds[key].joykey;
uint32_t joyaxis = (binds[key].joyaxis != AXIS_NONE)
? binds[key].joyaxis : joypad_info.auto_binds[key].joyaxis;
if ((uint16_t)joykey != NO_BTN && drv->button(joypad_info.joy_idx, (uint16_t)joykey))
return true;
return ((float)abs(drv->axis(joypad_info.joy_idx, joyaxis)) / 0x8000) > joypad_info.axis_threshold;
}
/**
* input_joypad_analog:
* @drv : Input device driver handle.
* @port : User number.
* @idx : Analog key index.
* E.g.:
* - RETRO_DEVICE_INDEX_ANALOG_LEFT
* - RETRO_DEVICE_INDEX_ANALOG_RIGHT
* @ident : Analog key identifier.
* E.g.:
* - RETRO_DEVICE_ID_ANALOG_X
* - RETRO_DEVICE_ID_ANALOG_Y
* @binds : Binds of user.
*
* Gets analog value of analog key identifiers @idx and @ident
* from user with number @port with provided keybinds (@binds).
*
* Returns: analog value on success, otherwise 0.
**/
int16_t input_joypad_analog(const input_device_driver_t *driver,
rarch_joypad_info_t joypad_info,
unsigned port, unsigned idx, unsigned ident,
const struct retro_keybind *binds);
/**
* input_joypad_set_rumble:
* @drv : Input device driver handle.
* @port : User number.
* @effect : Rumble effect to set.
* @strength : Strength of rumble effect.
*
* Sets rumble effect @effect with strength @strength.
*
* Returns: true (1) if successful, otherwise false (0).
**/
bool input_joypad_set_rumble(const input_device_driver_t *driver,
unsigned port, enum retro_rumble_effect effect, uint16_t strength);
/**
* input_joypad_axis_raw:
* @drv : Input device driver handle.
* @port : Joystick number.
* @axis : Identifier of axis.
*
* Checks if axis (@axis) was being pressed by user
* with joystick number @port.
*
* Returns: true (1) if axis was pressed, otherwise
* false (0).
**/
int16_t input_joypad_axis_raw(const input_device_driver_t *driver,
unsigned port, unsigned axis);
/**
* input_joypad_button_raw:
* @drv : Input device driver handle.
* @port : Joystick number.
* @button : Identifier of key.
*
* Checks if key (@button) was being pressed by user
* with joystick number @port.
*
* Returns: true (1) if key was pressed, otherwise
* false (0).
**/
bool input_joypad_button_raw(const input_device_driver_t *driver,
unsigned port, unsigned button);
bool input_joypad_hat_raw(const input_device_driver_t *driver,
unsigned joypad, unsigned hat_dir, unsigned hat);
/**
* input_joypad_name:
* @drv : Input device driver handle.
* @port : Joystick number.
*
* Gets name of the joystick (@port).
*
* Returns: name of joystick #port.
**/
const char *input_joypad_name(const input_device_driver_t *driver,
unsigned port);
bool input_config_get_bind_idx(unsigned port, unsigned *joy_idx_real);
#ifdef HAVE_HID
/**
* hid_driver_find_handle:
* @index : index of driver to get handle to.
*
* Returns: handle to HID driver at index. Can be NULL
* if nothing found.
**/
const void *hid_driver_find_handle(int index);
/**
* hid_driver_find_ident:
* @index : index of driver to get handle to.
*
* Returns: Human-readable identifier of HID driver at index. Can be NULL
* if nothing found.
**/
const char *hid_driver_find_ident(int index);
/**
* config_get_hid_driver_options:
*
* Get an enumerated list of all HID driver names, separated by '|'.
*
* Returns: string listing of all HID driver names, separated by '|'.
**/
const char* config_get_hid_driver_options(void);
/**
* input_hid_init_first:
*
* Finds first suitable HID driver and initializes.
*
* Returns: HID driver if found, otherwise NULL.
**/
const hid_driver_t *input_hid_init_first(void);
const void *hid_driver_get_data(void);
#endif
/** Line complete callback.
* Calls back after return is pressed with the completed line.
* Line can be NULL.
**/
typedef void (*input_keyboard_line_complete_t)(void *userdata,
const char *line);
typedef bool (*input_keyboard_press_t)(void *userdata, unsigned code);
typedef struct input_keyboard_ctx_wait
{
void *userdata;
input_keyboard_press_t cb;
} input_keyboard_ctx_wait_t;
/**
* input_keyboard_event:
* @down : Keycode was pressed down?
* @code : Keycode.
* @character : Character inputted.
* @mod : TODO/FIXME: ???
*
* Keyboard event utils. Called by drivers when keyboard events are fired.
* This interfaces with the global driver struct and libretro callbacks.
**/
void input_keyboard_event(bool down, unsigned code, uint32_t character,
uint16_t mod, unsigned device);
bool input_keyboard_line_append(const char *word);
/**
* input_keyboard_start_line:
* @userdata : Userdata.
* @cb : 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.
**/
const char **input_keyboard_start_line(void *userdata,
input_keyboard_line_complete_t cb);
bool input_keyboard_ctl(enum rarch_input_keyboard_ctl_state state, void *data);
extern struct retro_keybind input_config_binds[MAX_USERS][RARCH_BIND_LIST_END];
extern struct retro_keybind input_autoconf_binds[MAX_USERS][RARCH_BIND_LIST_END];
extern const struct retro_keybind *libretro_input_binds[MAX_USERS];
extern char input_device_names[MAX_USERS][64];
const char *input_config_bind_map_get_base(unsigned i);
unsigned input_config_bind_map_get_meta(unsigned i);
const char *input_config_bind_map_get_desc(unsigned i);
bool input_config_bind_map_get_valid(unsigned i);
/* auto_bind can be NULL. */
void input_config_get_bind_string(char *buf,
const struct retro_keybind *bind,
const struct retro_keybind *auto_bind, size_t size);
/**
* input_config_translate_str_to_rk:
* @str : String to translate to key ID.
*
* Translates tring representation to key identifier.
*
* Returns: key identifier.
**/
enum retro_key input_config_translate_str_to_rk(const char *str);
const char *input_config_get_prefix(unsigned user, bool meta);
/**
* input_config_translate_str_to_bind_id:
* @str : String to translate to bind ID.
*
* Translate string representation to bind ID.
*
* Returns: Bind ID value on success, otherwise
* RARCH_BIND_LIST_END on not found.
**/
unsigned input_config_translate_str_to_bind_id(const char *str);
void input_config_parse_key(void *data,
const char *prefix, const char *btn,
struct retro_keybind *bind);
void input_config_parse_joy_button(void *data, const char *prefix,
const char *btn, struct retro_keybind *bind);
void input_config_parse_joy_axis(void *data, const char *prefix,
const char *axis, struct retro_keybind *bind);
void input_config_set_device_name(unsigned port, const char *name);
void input_config_clear_device_name(unsigned port);
unsigned *input_config_get_device_ptr(unsigned port);
unsigned input_config_get_device(unsigned port);
void input_config_set_device(unsigned port, unsigned id);
const char *input_config_get_device_name(unsigned port);
const struct retro_keybind *input_config_get_bind_auto(unsigned port, unsigned id);
void input_config_set_pid(unsigned port, uint16_t pid);
uint16_t input_config_get_pid(unsigned port);
void input_config_set_vid(unsigned port, uint16_t vid);
uint16_t input_config_get_vid(unsigned port);
void input_config_reset(void);
extern input_device_driver_t dinput_joypad;
extern input_device_driver_t linuxraw_joypad;
extern input_device_driver_t parport_joypad;
extern input_device_driver_t udev_joypad;
extern input_device_driver_t xinput_joypad;
extern input_device_driver_t sdl_joypad;
extern input_device_driver_t ps3_joypad;
extern input_device_driver_t psp_joypad;
extern input_device_driver_t ctr_joypad;
extern input_device_driver_t xdk_joypad;
extern input_device_driver_t gx_joypad;
extern input_device_driver_t wiiu_joypad;
extern input_device_driver_t hid_joypad;
extern input_device_driver_t android_joypad;
extern input_device_driver_t qnx_joypad;
extern input_device_driver_t null_joypad;
extern input_device_driver_t mfi_joypad;
extern input_device_driver_t dos_joypad;
extern input_driver_t input_android;
extern input_driver_t input_sdl;
extern input_driver_t input_dinput;
extern input_driver_t input_x;
extern input_driver_t input_ps3;
extern input_driver_t input_psp;
extern input_driver_t input_ctr;
extern input_driver_t input_xenon360;
extern input_driver_t input_gx;
extern input_driver_t input_wiiu;
extern input_driver_t input_xinput;
extern input_driver_t input_linuxraw;
extern input_driver_t input_udev;
extern input_driver_t input_cocoa;
extern input_driver_t input_qnx;
extern input_driver_t input_rwebinput;
extern input_driver_t input_dos;
extern input_driver_t input_winraw;
extern input_driver_t input_wayland;
extern input_driver_t input_null;
#ifdef HAVE_HID
extern hid_driver_t iohidmanager_hid;
extern hid_driver_t btstack_hid;
extern hid_driver_t libusb_hid;
extern hid_driver_t wiiusb_hid;
extern hid_driver_t null_hid;
#endif
RETRO_END_DECLS
#endif
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