RetroArch/input/drivers/rwebinput_input.c
2017-08-31 02:25:04 +02:00

271 lines
6.7 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2015 - Michael Lelli
* 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/>.
*/
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <boolean.h>
#include "../input_driver.h"
#include "../input_keymaps.h"
#include "../../tasks/tasks_internal.h"
#include "../../configuration.h"
typedef struct rwebinput_state
{
uint8_t keys[32];
int mouse_x;
int mouse_y;
char mouse_l;
char mouse_r;
bool blocked;
} rwebinput_state_t;
int RWebInputInit(void);
rwebinput_state_t *RWebInputPoll(int context);
void RWebInputDestroy(int context);
typedef struct rwebinput_input
{
rwebinput_state_t state;
int context;
} rwebinput_input_t;
static void *rwebinput_input_init(const char *joypad_driver)
{
rwebinput_input_t *rwebinput = (rwebinput_input_t*)calloc(1, sizeof(*rwebinput));
if (!rwebinput)
goto error;
rwebinput->context = RWebInputInit();
if (!rwebinput->context)
goto error;
input_keymaps_init_keyboard_lut(rarch_key_map_rwebinput);
return rwebinput;
error:
if (rwebinput)
free(rwebinput);
return NULL;
}
static bool rwebinput_key_pressed_internal(void *data, int key)
{
unsigned sym;
bool ret;
rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
if (key >= RETROK_LAST)
return false;
sym = rarch_keysym_lut[(enum retro_key)key];
ret = rwebinput->state.keys[sym >> 3] & (1 << (sym & 7));
return ret;
}
static bool rwebinput_meta_key_pressed(void *data, int key)
{
(void)data;
(void)key;
return false;
}
static bool rwebinput_is_pressed(rwebinput_input_t *rwebinput,
const struct retro_keybind *binds, unsigned id)
{
if (id < RARCH_BIND_LIST_END)
{
const struct retro_keybind *bind = &binds[id];
int key = binds[id].key;
return bind->valid && (key < RETROK_LAST)
&& rwebinput_key_pressed_internal(rwebinput, key);
}
return false;
}
static bool rwebinput_key_pressed(void *data, int key)
{
rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
return rwebinput_is_pressed(rwebinput, input_config_binds[0], key);
}
static int16_t rwebinput_mouse_state(rwebinput_input_t *rwebinput, unsigned id)
{
switch (id)
{
case RETRO_DEVICE_ID_MOUSE_X:
return (int16_t) rwebinput->state.mouse_x;
case RETRO_DEVICE_ID_MOUSE_Y:
return (int16_t) rwebinput->state.mouse_y;
case RETRO_DEVICE_ID_MOUSE_LEFT:
return rwebinput->state.mouse_l;
case RETRO_DEVICE_ID_MOUSE_RIGHT:
return rwebinput->state.mouse_r;
}
return 0;
}
static int16_t rwebinput_analog_pressed(rwebinput_input_t *rwebinput,
const struct retro_keybind *binds, unsigned idx, unsigned id)
{
int16_t pressed_minus = 0, pressed_plus = 0;
unsigned id_minus = 0;
unsigned id_plus = 0;
input_conv_analog_id_to_bind_id(idx, id, &id_minus, &id_plus);
if (rwebinput_is_pressed(rwebinput, binds, id_minus))
pressed_minus = -0x7fff;
if (rwebinput_is_pressed(rwebinput, binds, id_plus))
pressed_plus = 0x7fff;
return pressed_plus + pressed_minus;
}
static int16_t rwebinput_input_state(void *data,
rarch_joypad_info_t joypad_info,
const struct retro_keybind **binds,
unsigned port, unsigned device, unsigned idx, unsigned id)
{
rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
switch (device)
{
case RETRO_DEVICE_JOYPAD:
return rwebinput_is_pressed(rwebinput, binds[port], id);
case RETRO_DEVICE_ANALOG:
return rwebinput_analog_pressed(rwebinput, binds[port], idx, id);
case RETRO_DEVICE_KEYBOARD:
return rwebinput_key_pressed(rwebinput, id);
case RETRO_DEVICE_MOUSE:
return rwebinput_mouse_state(rwebinput, id);
}
return 0;
}
static void rwebinput_input_free(void *data)
{
rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
if (!rwebinput)
return;
RWebInputDestroy(rwebinput->context);
free(rwebinput);
}
static void rwebinput_input_poll(void *data)
{
unsigned i;
rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
rwebinput_state_t *state = RWebInputPoll(rwebinput->context);
/* Get new keys. */
for (i = 0; i < 32; i++)
{
unsigned k;
uint8_t diff;
if (state->keys[i] == rwebinput->state.keys[i])
continue;
diff = state->keys[i] ^ rwebinput->state.keys[i];
for (k = 0; diff; diff >>= 1, k++)
{
if (diff & 1)
input_keyboard_event((state->keys[i] & (1 << k)) != 0,
input_keymaps_translate_keysym_to_rk(i * 8 + k), 0, 0,
RETRO_DEVICE_KEYBOARD);
}
}
memcpy(&rwebinput->state, state, sizeof(rwebinput->state));
}
static void rwebinput_grab_mouse(void *data, bool state)
{
(void)data;
(void)state;
}
static bool rwebinput_set_rumble(void *data, unsigned port,
enum retro_rumble_effect effect, uint16_t strength)
{
(void)data;
(void)port;
(void)effect;
(void)strength;
return false;
}
static uint64_t rwebinput_get_capabilities(void *data)
{
uint64_t caps = 0;
caps |= (1 << RETRO_DEVICE_JOYPAD);
caps |= (1 << RETRO_DEVICE_ANALOG);
caps |= (1 << RETRO_DEVICE_KEYBOARD);
caps |= (1 << RETRO_DEVICE_MOUSE);
return caps;
}
static bool rwebinput_keyboard_mapping_is_blocked(void *data)
{
rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
if (!rwebinput)
return false;
return rwebinput->state.blocked;
}
static void rwebinput_keyboard_mapping_set_block(void *data, bool value)
{
rwebinput_input_t *rwebinput = (rwebinput_input_t*)data;
if (!rwebinput)
return;
rwebinput->state.blocked = value;
}
input_driver_t input_rwebinput = {
rwebinput_input_init,
rwebinput_input_poll,
rwebinput_input_state,
rwebinput_meta_key_pressed,
rwebinput_input_free,
NULL,
NULL,
rwebinput_get_capabilities,
"rwebinput",
rwebinput_grab_mouse,
NULL,
rwebinput_set_rumble,
NULL,
NULL,
rwebinput_keyboard_mapping_is_blocked,
rwebinput_keyboard_mapping_set_block,
};