mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-25 17:10:12 +00:00
131 lines
3.5 KiB
C
131 lines
3.5 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 <X11/Xlib.h>
|
|
#include <X11/Xutil.h>
|
|
#include <X11/extensions/xf86vmode.h>
|
|
|
|
#ifdef HAVE_XINERAMA
|
|
#include <X11/extensions/Xinerama.h>
|
|
#endif
|
|
|
|
#include <boolean.h>
|
|
#include "../driver.h"
|
|
#include "keyboard_line.h"
|
|
#include "input_keymaps.h"
|
|
|
|
static inline unsigned leading_ones(uint8_t c)
|
|
{
|
|
unsigned ones = 0;
|
|
while (c & 0x80)
|
|
{
|
|
ones++;
|
|
c <<= 1;
|
|
}
|
|
|
|
return ones;
|
|
}
|
|
|
|
/* Simple implementation. Assumes the sequence is
|
|
* properly synchronized and terminated. */
|
|
|
|
static size_t conv_utf8_utf32(uint32_t *out,
|
|
size_t out_chars, const char *in, size_t in_size)
|
|
{
|
|
unsigned i;
|
|
size_t ret = 0;
|
|
while (in_size && out_chars)
|
|
{
|
|
uint8_t first = *in++;
|
|
|
|
unsigned ones = leading_ones(first);
|
|
if (ones > 6 || ones == 1) /* Invalid or desync. */
|
|
break;
|
|
|
|
unsigned extra = ones ? ones - 1 : ones;
|
|
if (1 + extra > in_size) /* Overflow. */
|
|
break;
|
|
|
|
unsigned shift = (extra - 1) * 6;
|
|
uint32_t c = (first & ((1 << (7 - ones)) - 1)) << (6 * extra);
|
|
|
|
for (i = 0; i < extra; i++, in++, shift -= 6)
|
|
c |= (*in & 0x3f) << shift;
|
|
|
|
*out++ = c;
|
|
in_size -= 1 + extra;
|
|
out_chars--;
|
|
ret++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void x11_handle_key_event(XEvent *event, XIC ic, bool filter)
|
|
{
|
|
int i;
|
|
unsigned state;
|
|
uint16_t mod = 0;
|
|
char keybuf[32] = {0};
|
|
uint32_t chars[32] = {0};
|
|
|
|
bool down = event->type == KeyPress;
|
|
unsigned key = input_keymaps_translate_keysym_to_rk(XLookupKeysym(&event->xkey, 0));
|
|
int num = 0;
|
|
|
|
if (down && !filter)
|
|
{
|
|
KeySym keysym = 0;
|
|
|
|
#ifdef X_HAVE_UTF8_STRING
|
|
Status status = 0;
|
|
|
|
/* XwcLookupString doesn't seem to work. */
|
|
num = Xutf8LookupString(ic, &event->xkey, keybuf, ARRAY_SIZE(keybuf), &keysym, &status);
|
|
|
|
/* libc functions need UTF-8 locale to work properly,
|
|
* which makes mbrtowc a bit impractical.
|
|
*
|
|
* Use custom UTF8 -> UTF-32 conversion. */
|
|
num = conv_utf8_utf32(chars, ARRAY_SIZE(chars), keybuf, num);
|
|
#else
|
|
(void)ic;
|
|
num = XLookupString(&event->xkey, keybuf, sizeof(keybuf), &keysym, NULL); /* ASCII only. */
|
|
for (i = 0; i < num; i++)
|
|
chars[i] = keybuf[i] & 0x7f;
|
|
#endif
|
|
}
|
|
|
|
state = event->xkey.state;
|
|
|
|
if (state & ShiftMask)
|
|
mod |= RETROKMOD_SHIFT;
|
|
if (state & LockMask)
|
|
mod |= RETROKMOD_CAPSLOCK;
|
|
if (state & ControlMask)
|
|
mod |= RETROKMOD_CTRL;
|
|
if (state & Mod1Mask)
|
|
mod |= RETROKMOD_ALT;
|
|
if (state & Mod4Mask)
|
|
mod |= RETROKMOD_META;
|
|
|
|
input_keyboard_event(down, key, chars[0], mod, RETRO_DEVICE_KEYBOARD);
|
|
|
|
for (i = 1; i < num; i++)
|
|
input_keyboard_event(down, RETROK_UNKNOWN,
|
|
chars[i], mod, RETRO_DEVICE_KEYBOARD);
|
|
}
|