RetroArch/input/keyboard_event_xkb.c
2015-03-09 19:04:10 +01:00

69 lines
2.4 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2015 - 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 <xkbcommon/xkbcommon.h>
#include "input_joypad_driver.h"
#include "input_keymaps.h"
#include "keyboard_line.h"
#define MOD_MAP_SIZE 5
/* FIXME: Don't handle composed and dead-keys properly.
* Waiting for support in libxkbcommon ... */
void handle_xkb(
struct xkb_state *xkb_state,
xkb_mod_index_t *mod_map_idx,
uint16_t *mod_map_bit,
int code, int value)
{
unsigned i;
const xkb_keysym_t *syms = NULL;
unsigned num_syms = 0;
uint16_t mod = 0;
/* Convert Linux evdev to X11 (xkbcommon docs say so at least ...) */
int xk_code = code + 8;
if (!xkb_state)
return;
if (value == 2) /* Repeat, release first explicitly. */
xkb_state_update_key(xkb_state, xk_code, XKB_KEY_UP);
if (value)
num_syms = xkb_state_key_get_syms(xkb_state, xk_code, &syms);
xkb_state_update_key(xkb_state, xk_code, value ? XKB_KEY_DOWN : XKB_KEY_UP);
/* Build mod state. */
for (i = 0; i < MOD_MAP_SIZE; i++)
{
xkb_mod_index_t *map_idx = (xkb_mod_index_t*)&mod_map_idx[i];
uint16_t *map_bit = (uint16_t *)&mod_map_bit[i];
if (*map_idx != XKB_MOD_INVALID)
mod |= xkb_state_mod_index_is_active(
xkb_state, *map_idx,
(enum xkb_state_component)((XKB_STATE_MODS_EFFECTIVE) > 0)) ? *map_bit : 0;
}
input_keyboard_event(value, input_keymaps_translate_keysym_to_rk(code),
num_syms ? xkb_keysym_to_utf32(syms[0]) : 0, mod, RETRO_DEVICE_KEYBOARD);
for (i = 1; i < num_syms; i++)
input_keyboard_event(value, RETROK_UNKNOWN,
xkb_keysym_to_utf32(syms[i]), mod, RETRO_DEVICE_KEYBOARD);
}