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RetroArch/input/input_driver.c

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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 Foundation, 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 <string/stdstring.h>
#include "input_driver.h"
#ifdef HAVE_NETWORKING
#include <net/net_compat.h>
#include <net/net_socket.h>
#endif
#include "../retroarch.h"
#include "../verbosity.h"
#include "../configuration.h"
#include "../list_special.h"
#include "../performance_counters.h"
#define HOLD_BTN_DELAY_SEC 2
/**************************************/
static void *input_null_init(const char *joypad_driver) { return (void*)-1; }
static void input_null_poll(void *data) { }
static int16_t input_null_input_state(
void *data,
const input_device_driver_t *joypad,
const input_device_driver_t *sec_joypad,
rarch_joypad_info_t *joypad_info,
const struct retro_keybind **retro_keybinds,
bool keyboard_mapping_blocked,
unsigned port, unsigned device, unsigned index, unsigned id) { return 0; }
static void input_null_free(void *data) { }
static bool input_null_set_sensor_state(void *data, unsigned port,
enum retro_sensor_action action, unsigned rate) { return false; }
static float input_null_get_sensor_input(void *data, unsigned port, unsigned id) { return 0.0; }
static uint64_t input_null_get_capabilities(void *data) { return 0; }
static void input_null_grab_mouse(void *data, bool state) { }
static bool input_null_grab_stdin(void *data) { return false; }
static input_driver_t input_null = {
input_null_init,
input_null_poll,
input_null_input_state,
input_null_free,
input_null_set_sensor_state,
input_null_get_sensor_input,
input_null_get_capabilities,
"null",
input_null_grab_mouse,
input_null_grab_stdin
};
static input_device_driver_t null_joypad = {
NULL, /* init */
NULL, /* query_pad */
NULL, /* destroy */
NULL, /* button */
NULL, /* state */
NULL, /* get_buttons */
NULL, /* axis */
NULL, /* poll */
NULL,
NULL, /* name */
"null",
};
#ifdef HAVE_HID
static bool null_hid_joypad_query(void *data, unsigned pad) {
return pad < MAX_USERS; }
static const char *null_hid_joypad_name(
void *data, unsigned pad) { return NULL; }
static void null_hid_joypad_get_buttons(void *data,
unsigned port, input_bits_t *state) { BIT256_CLEAR_ALL_PTR(state); }
static int16_t null_hid_joypad_button(
void *data, unsigned port, uint16_t joykey) { return 0; }
static bool null_hid_joypad_rumble(void *data, unsigned pad,
enum retro_rumble_effect effect, uint16_t strength) { return false; }
static int16_t null_hid_joypad_axis(
void *data, unsigned port, uint32_t joyaxis) { return 0; }
static void *null_hid_init(void) { return (void*)-1; }
static void null_hid_free(const void *data) { }
static void null_hid_poll(void *data) { }
static int16_t null_hid_joypad_state(
void *data,
rarch_joypad_info_t *joypad_info,
const void *binds_data,
unsigned port) { return 0; }
static hid_driver_t null_hid = {
null_hid_init, /* init */
null_hid_joypad_query, /* joypad_query */
null_hid_free, /* free */
null_hid_joypad_button, /* button */
null_hid_joypad_state, /* state */
null_hid_joypad_get_buttons, /* get_buttons */
null_hid_joypad_axis, /* axis */
null_hid_poll, /* poll */
null_hid_joypad_rumble, /* rumble */
null_hid_joypad_name, /* joypad_name */
"null",
};
#endif
input_device_driver_t *joypad_drivers[] = {
#ifdef HAVE_XINPUT
&xinput_joypad,
#endif
#ifdef GEKKO
&gx_joypad,
#endif
#ifdef WIIU
&wiiu_joypad,
#endif
#ifdef _XBOX1
&xdk_joypad,
#endif
#if defined(ORBIS)
&ps4_joypad,
#endif
#if defined(__PSL1GHT__) || defined(__PS3__)
&ps3_joypad,
#endif
#if defined(PSP) || defined(VITA)
&psp_joypad,
#endif
#if defined(PS2)
&ps2_joypad,
#endif
#ifdef _3DS
&ctr_joypad,
#endif
#ifdef SWITCH
&switch_joypad,
#endif
#ifdef HAVE_DINPUT
&dinput_joypad,
#endif
#ifdef HAVE_UDEV
&udev_joypad,
#endif
#if defined(__linux) && !defined(ANDROID)
&linuxraw_joypad,
#endif
#ifdef HAVE_PARPORT
&parport_joypad,
#endif
#ifdef ANDROID
&android_joypad,
#endif
#if defined(HAVE_SDL) || defined(HAVE_SDL2)
&sdl_joypad,
#endif
#if defined(DINGUX) && defined(HAVE_SDL_DINGUX)
&sdl_dingux_joypad,
#endif
#ifdef __QNX__
&qnx_joypad,
#endif
#ifdef HAVE_MFI
&mfi_joypad,
#endif
#ifdef DJGPP
&dos_joypad,
#endif
/* Selecting the HID gamepad driver disables the Wii U gamepad. So while
* we want the HID code to be compiled & linked, we don't want the driver
* to be selectable in the UI. */
#if defined(HAVE_HID) && !defined(WIIU)
&hid_joypad,
#endif
#ifdef EMSCRIPTEN
&rwebpad_joypad,
#endif
&null_joypad,
NULL,
};
input_driver_t *input_drivers[] = {
#ifdef ORBIS
&input_ps4,
#endif
#if defined(__PSL1GHT__) || defined(__PS3__)
&input_ps3,
#endif
#if defined(SN_TARGET_PSP2) || defined(PSP) || defined(VITA)
&input_psp,
#endif
#if defined(PS2)
&input_ps2,
#endif
#if defined(_3DS)
&input_ctr,
#endif
#if defined(SWITCH)
&input_switch,
#endif
#if defined(HAVE_SDL) || defined(HAVE_SDL2)
&input_sdl,
#endif
#if defined(DINGUX) && defined(HAVE_SDL_DINGUX)
&input_sdl_dingux,
#endif
#ifdef HAVE_DINPUT
&input_dinput,
#endif
#ifdef HAVE_X11
&input_x,
#endif
#ifdef __WINRT__
&input_uwp,
#endif
#ifdef XENON
&input_xenon360,
#endif
#if defined(HAVE_XINPUT2) || defined(HAVE_XINPUT_XBOX1) || defined(__WINRT__)
&input_xinput,
#endif
#ifdef GEKKO
&input_gx,
#endif
#ifdef WIIU
&input_wiiu,
#endif
#ifdef ANDROID
&input_android,
#endif
#ifdef HAVE_UDEV
&input_udev,
#endif
#if defined(__linux__) && !defined(ANDROID)
&input_linuxraw,
#endif
#if defined(HAVE_COCOA) || defined(HAVE_COCOATOUCH) || defined(HAVE_COCOA_METAL)
&input_cocoa,
#endif
#ifdef __QNX__
&input_qnx,
#endif
#ifdef EMSCRIPTEN
&input_rwebinput,
#endif
#ifdef DJGPP
&input_dos,
#endif
#if defined(_WIN32) && !defined(_XBOX) && _WIN32_WINNT >= 0x0501 && !defined(__WINRT__)
#ifdef HAVE_WINRAWINPUT
/* winraw only available since XP */
&input_winraw,
#endif
#endif
&input_null,
NULL,
};
#ifdef HAVE_HID
hid_driver_t *hid_drivers[] = {
#if defined(HAVE_BTSTACK)
&btstack_hid,
#endif
#if defined(__APPLE__) && defined(HAVE_IOHIDMANAGER)
&iohidmanager_hid,
#endif
#if defined(HAVE_LIBUSB) && defined(HAVE_THREADS)
&libusb_hid,
#endif
#ifdef HW_RVL
&wiiusb_hid,
#endif
&null_hid,
NULL,
};
#endif
/**************************************/
/* private function prototypes */
static const input_device_driver_t *input_joypad_init_first(void *data);
/**************************************/
bool input_driver_set_rumble(
input_driver_state_t *driver_state, unsigned port, unsigned joy_idx,
enum retro_rumble_effect effect, uint16_t strength)
{
const input_device_driver_t *primary_joypad;
const input_device_driver_t *sec_joypad;
bool rumble_state = false;
if (!driver_state || (joy_idx >= MAX_USERS))
return false;
primary_joypad = driver_state->primary_joypad;
sec_joypad = driver_state->secondary_joypad;
if (primary_joypad && primary_joypad->set_rumble)
rumble_state = primary_joypad->set_rumble(joy_idx, effect, strength);
/* if sec_joypad exists, this set_rumble() return value will replace primary_joypad's return */
if (sec_joypad && sec_joypad->set_rumble)
rumble_state = sec_joypad->set_rumble(joy_idx, effect, strength);
return rumble_state;
}
/**************************************/
bool input_driver_set_sensor(
input_driver_state_t *driver_state, unsigned port, bool sensors_enable,
enum retro_sensor_action action, unsigned rate)
{
const input_driver_t *current_driver;
void *current_data;
if (!driver_state || !driver_state->current_data)
return false;
current_driver = driver_state->current_driver;
current_data = driver_state->current_data;
/* If sensors are disabled, inhibit any enable
* actions (but always allow disable actions) */
if (!sensors_enable &&
((action == RETRO_SENSOR_ACCELEROMETER_ENABLE) ||
(action == RETRO_SENSOR_GYROSCOPE_ENABLE) ||
(action == RETRO_SENSOR_ILLUMINANCE_ENABLE)))
return false;
if (current_driver && current_driver->set_sensor_state)
return current_driver->set_sensor_state(current_data,
port, action, rate);
return false;
}
/**************************************/
float input_driver_get_sensor(
input_driver_state_t *driver_state,
unsigned port, bool sensors_enable, unsigned id)
{
const input_driver_t *current_driver;
void *current_data;
if (!driver_state || !driver_state->current_data)
return 0.0f;
current_driver = driver_state->current_driver;
current_data = driver_state->current_data;
if (sensors_enable && current_driver->get_sensor_input)
return current_driver->get_sensor_input(current_data, port, id);
return 0.0f;
}
const input_device_driver_t *input_joypad_init_driver(
const char *ident, void *data)
{
unsigned i;
if (ident && *ident)
{
for (i = 0; joypad_drivers[i]; i++)
{
if (string_is_equal(ident, joypad_drivers[i]->ident)
&& joypad_drivers[i]->init)
{
void *ptr = joypad_drivers[i]->init(data);
if (ptr)
{
RARCH_LOG("[Joypad]: Found joypad driver: \"%s\".\n",
joypad_drivers[i]->ident);
return joypad_drivers[i];
}
}
}
}
return input_joypad_init_first(data); /* fall back to first available driver */
}
/**
* Finds first suitable joypad driver and initializes. Used as a fallback by
* input_joypad_init_driver when no matching driver is found.
*
* @param data joypad state data pointer, which can be NULL and will be
* initialized by the new joypad driver, if one is found.
*
* @return joypad driver if found and initialized, otherwise NULL.
**/
static const input_device_driver_t *input_joypad_init_first(void *data)
{
unsigned i;
for (i = 0; joypad_drivers[i]; i++)
{
if ( joypad_drivers[i]
&& joypad_drivers[i]->init)
{
void *ptr = joypad_drivers[i]->init(data);
if (ptr)
{
RARCH_LOG("[Joypad]: Found joypad driver: \"%s\".\n",
joypad_drivers[i]->ident);
return joypad_drivers[i];
}
}
}
return NULL;
}
bool input_driver_toggle_button_combo(
unsigned mode,
retro_time_t current_time,
input_bits_t* p_input)
{
switch (mode)
{
case INPUT_TOGGLE_DOWN_Y_L_R:
if (BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_DOWN) &&
BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_Y) &&
BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_L) &&
BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_R))
return true;
break;
case INPUT_TOGGLE_L3_R3:
if (BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_L3) &&
BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_R3))
return true;
break;
case INPUT_TOGGLE_L1_R1_START_SELECT:
if (BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_L) &&
BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_R) &&
BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_START) &&
BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_SELECT))
return true;
break;
case INPUT_TOGGLE_START_SELECT:
if (BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_START) &&
BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_SELECT))
return true;
break;
case INPUT_TOGGLE_L3_R:
if (BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_L3) &&
BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_R))
return true;
break;
case INPUT_TOGGLE_L_R:
if (BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_L) &&
BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_R))
return true;
break;
case INPUT_TOGGLE_DOWN_SELECT:
if (BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_DOWN) &&
BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_SELECT))
return true;
break;
case INPUT_TOGGLE_L2_R2:
if (BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_L2) &&
BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_R2))
return true;
break;
case INPUT_TOGGLE_HOLD_START:
{
static rarch_timer_t timer = {0};
if (!BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_START))
{
/* timer only runs while start is held down */
timer.timer_end = true;
timer.timer_begin = false;
timer.timeout_end = 0;
return false;
}
/* User started holding down the start button, start the timer */
if (!timer.timer_begin)
{
uint64_t current_usec = cpu_features_get_time_usec();
timer.timeout_us = HOLD_BTN_DELAY_SEC * 1000000;
timer.current = current_usec;
timer.timeout_end = timer.current + timer.timeout_us;
timer.timer_begin = true;
timer.timer_end = false;
}
timer.current = current_time;
timer.timeout_us = (timer.timeout_end - timer.current);
if (!timer.timer_end && (timer.timeout_us <= 0))
{
/* start has been held down long enough,
* stop timer and enter menu */
timer.timer_end = true;
timer.timer_begin = false;
timer.timeout_end = 0;
return true;
}
return false;
}
case INPUT_TOGGLE_HOLD_SELECT:
{
static rarch_timer_t timer = {0};
if (!BIT256_GET_PTR(p_input, RETRO_DEVICE_ID_JOYPAD_SELECT))
{
/* timer only runs while select is held down */
timer.timer_end = true;
timer.timer_begin = false;
timer.timeout_end = 0;
return false;
}
/* user started holding down the select button, start the timer */
if (!timer.timer_begin)
{
uint64_t current_usec = cpu_features_get_time_usec();
timer.timeout_us = HOLD_BTN_DELAY_SEC * 1000000;
timer.current = current_usec;
timer.timeout_end = timer.current + timer.timeout_us;
timer.timer_begin = true;
timer.timer_end = false;
}
timer.current = current_time;
timer.timeout_us = (timer.timeout_end - timer.current);
if (!timer.timer_end && (timer.timeout_us <= 0))
{
/* select has been held down long enough,
* stop timer and enter menu */
timer.timer_end = true;
timer.timer_begin = false;
timer.timeout_end = 0;
return true;
}
return false;
}
default:
case INPUT_TOGGLE_NONE:
break;
}
return false;
}
int16_t input_state_wrap(
input_driver_t *current_input,
void *data,
const input_device_driver_t *joypad,
const input_device_driver_t *sec_joypad,
rarch_joypad_info_t *joypad_info,
const struct retro_keybind **binds,
bool keyboard_mapping_blocked,
unsigned _port,
unsigned device,
unsigned idx,
unsigned id)
{
int16_t ret = 0;
/* Do a bitwise OR to combine input states together */
if (device == RETRO_DEVICE_JOYPAD)
{
if (id == RETRO_DEVICE_ID_JOYPAD_MASK)
{
if (joypad)
ret |= joypad->state(
joypad_info, binds[_port], _port);
if (sec_joypad)
ret |= sec_joypad->state(
joypad_info, binds[_port], _port);
}
else
{
/* Do a bitwise OR to combine both input
* states together */
if (binds[_port][id].valid)
{
/* Auto-binds are per joypad, not per user. */
const uint64_t bind_joykey = binds[_port][id].joykey;
const uint64_t bind_joyaxis = binds[_port][id].joyaxis;
const uint64_t autobind_joykey = joypad_info->auto_binds[id].joykey;
const uint64_t autobind_joyaxis= joypad_info->auto_binds[id].joyaxis;
uint16_t port = joypad_info->joy_idx;
float axis_threshold = joypad_info->axis_threshold;
const uint64_t joykey = (bind_joykey != NO_BTN)
? bind_joykey : autobind_joykey;
const uint32_t joyaxis = (bind_joyaxis != AXIS_NONE)
? bind_joyaxis : autobind_joyaxis;
if (joypad)
{
if ((uint16_t)joykey != NO_BTN && joypad->button(
port, (uint16_t)joykey))
return 1;
if (joyaxis != AXIS_NONE &&
((float)abs(joypad->axis(port, joyaxis))
/ 0x8000) > axis_threshold)
return 1;
}
if (sec_joypad)
{
if ((uint16_t)joykey != NO_BTN && sec_joypad->button(
port, (uint16_t)joykey))
return 1;
if (joyaxis != AXIS_NONE &&
((float)abs(sec_joypad->axis(port, joyaxis))
/ 0x8000) > axis_threshold)
return 1;
}
}
}
}
if (current_input && current_input->input_state)
ret |= current_input->input_state(
data,
joypad,
sec_joypad,
joypad_info,
binds,
keyboard_mapping_blocked,
_port,
device,
idx,
id);
return ret;
}
int16_t input_joypad_axis(
float input_analog_deadzone,
float input_analog_sensitivity,
const input_device_driver_t *drv,
unsigned port, uint32_t joyaxis, float normal_mag)
{
int16_t val = (joyaxis != AXIS_NONE) ? drv->axis(port, joyaxis) : 0;
if (input_analog_deadzone)
{
/* if analog value is below the deadzone, ignore it
* normal magnitude is calculated radially for analog sticks
* and linearly for analog buttons */
if (normal_mag <= input_analog_deadzone)
return 0;
/* due to the way normal_mag is calculated differently for buttons and
* sticks, this results in either a radial scaled deadzone for sticks
* or linear scaled deadzone for analog buttons */
val = val * MAX(1.0f,(1.0f / normal_mag)) * MIN(1.0f,
((normal_mag - input_analog_deadzone)
/ (1.0f - input_analog_deadzone)));
}
if (input_analog_sensitivity != 1.0f)
{
float normalized = (1.0f / 0x7fff) * val;
int new_val = 0x7fff * normalized *
input_analog_sensitivity;
if (new_val > 0x7fff)
return 0x7fff;
else if (new_val < -0x7fff)
return -0x7fff;
return new_val;
}
return val;
}
#if defined(HAVE_NETWORKING) && defined(HAVE_NETWORKGAMEPAD)
static bool input_remote_init_network(input_remote_t *handle,
uint16_t port, unsigned user)
{
int fd;
struct addrinfo *res = NULL;
port = port + user;
if (!network_init())
return false;
RARCH_LOG("Bringing up remote interface on port %hu.\n",
(unsigned short)port);
fd = socket_init((void**)&res, port, NULL, SOCKET_TYPE_DATAGRAM);
if (fd < 0)
goto error;
handle->net_fd[user] = fd;
if (!socket_nonblock(handle->net_fd[user]))
goto error;
if (!socket_bind(handle->net_fd[user], res))
{
RARCH_ERR("%s\n", msg_hash_to_str(MSG_FAILED_TO_BIND_SOCKET));
goto error;
}
freeaddrinfo_retro(res);
return true;
error:
if (res)
freeaddrinfo_retro(res);
return false;
}
void input_remote_free(input_remote_t *handle, unsigned max_users)
{
unsigned user;
for (user = 0; user < max_users; user ++)
socket_close(handle->net_fd[user]);
free(handle);
}
static input_remote_t *input_remote_new(
settings_t *settings,
uint16_t port, unsigned max_users)
{
unsigned user;
input_remote_t *handle = (input_remote_t*)
calloc(1, sizeof(*handle));
if (!handle)
return NULL;
for (user = 0; user < max_users; user ++)
{
handle->net_fd[user] = -1;
if (settings->bools.network_remote_enable_user[user])
if (!input_remote_init_network(handle, port, user))
{
input_remote_free(handle, max_users);
return NULL;
}
}
return handle;
}
void input_remote_parse_packet(
input_remote_state_t *input_state,
struct remote_message *msg, unsigned user)
{
/* Parse message */
switch (msg->device)
{
case RETRO_DEVICE_JOYPAD:
input_state->buttons[user] &= ~(1 << msg->id);
if (msg->state)
input_state->buttons[user] |= 1 << msg->id;
break;
case RETRO_DEVICE_ANALOG:
input_state->analog[msg->index * 2 + msg->id][user] = msg->state;
break;
}
}
input_remote_t *input_driver_init_remote(
settings_t *settings,
unsigned num_active_users)
{
unsigned network_remote_base_port = settings->uints.network_remote_base_port;
return input_remote_new(
settings,
network_remote_base_port,
num_active_users);
}
#endif
#ifdef HAVE_OVERLAY
bool input_overlay_add_inputs_inner(overlay_desc_t *desc,
input_overlay_state_t *ol_state, unsigned port)
{
switch(desc->type)
{
case OVERLAY_TYPE_BUTTONS:
{
unsigned i;
bool all_buttons_pressed = false;
/* Check each bank of the mask */
for (i = 0; i < ARRAY_SIZE(desc->button_mask.data); ++i)
{
/* Get bank */
uint32_t bank_mask = BITS_GET_ELEM(desc->button_mask,i);
unsigned id = i * 32;
/* Worth pursuing? Have we got any bits left in here? */
while (bank_mask)
{
/* If this bit is set then we need to query the pad
* The button must be pressed.*/
if (bank_mask & 1)
{
/* Light up the button if pressed */
if (ol_state ?
!BIT256_GET(ol_state->buttons, id) :
!input_state_internal(port, RETRO_DEVICE_JOYPAD, 0, id))
{
/* We need ALL of the inputs to be active,
* abort. */
desc->updated = false;
return false;
}
all_buttons_pressed = true;
desc->updated = true;
}
bank_mask >>= 1;
++id;
}
}
return all_buttons_pressed;
}
case OVERLAY_TYPE_ANALOG_LEFT:
case OVERLAY_TYPE_ANALOG_RIGHT:
{
float analog_x;
float analog_y;
float dx;
float dy;
if (ol_state)
{
unsigned index_offset = (desc->type == OVERLAY_TYPE_ANALOG_RIGHT) ? 2 : 0;
analog_x = (float)ol_state->analog[index_offset];
analog_y = (float)ol_state->analog[index_offset + 1];
}
else
{
unsigned index = (desc->type == OVERLAY_TYPE_ANALOG_RIGHT) ?
RETRO_DEVICE_INDEX_ANALOG_RIGHT : RETRO_DEVICE_INDEX_ANALOG_LEFT;
analog_x = input_state_internal(port, RETRO_DEVICE_ANALOG,
index, RETRO_DEVICE_ID_ANALOG_X);
analog_y = input_state_internal(port, RETRO_DEVICE_ANALOG,
index, RETRO_DEVICE_ID_ANALOG_Y);
}
dx = (analog_x / (float)0x8000) * (desc->range_x / 2.0f);
dy = (analog_y / (float)0x8000) * (desc->range_y / 2.0f);
/* Only modify overlay delta_x/delta_y values
* if we are monitoring input from a physical
* controller */
if (!ol_state)
{
desc->delta_x = dx;
desc->delta_y = dy;
}
/* Maybe use some option here instead of 0, only display
* changes greater than some magnitude */
if ((dx * dx) > 0 || (dy * dy) > 0)
return true;
}
break;
case OVERLAY_TYPE_KEYBOARD:
if (ol_state ?
OVERLAY_GET_KEY(ol_state, desc->retro_key_idx) :
input_state_internal(port, RETRO_DEVICE_KEYBOARD, 0, desc->retro_key_idx))
{
desc->updated = true;
return true;
}
break;
default:
break;
}
return false;
}
bool input_overlay_add_inputs(input_overlay_t *ol,
bool show_touched, unsigned port)
{
unsigned i;
bool button_pressed = false;
input_overlay_state_t *ol_state = &ol->overlay_state;
if (!ol_state)
return false;
for (i = 0; i < ol->active->size; i++)
{
overlay_desc_t *desc = &(ol->active->descs[i]);
button_pressed |= input_overlay_add_inputs_inner(desc,
show_touched ? ol_state : NULL, port);
}
return button_pressed;
}
#endif
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