mirror of
https://github.com/CTCaer/RetroArch.git
synced 2024-12-25 12:17:04 +00:00
292 lines
7.5 KiB
C
292 lines
7.5 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "driver.h"
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#include "SDL.h"
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#include "../boolean.h"
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#include "general.h"
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#include <stdint.h>
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#include <stdlib.h>
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#include "rarch_sdl_input.h"
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/keysym.h>
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typedef struct x11_input
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{
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sdl_input_t *sdl;
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Display *display;
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char state[32];
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} x11_input_t;
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struct key_bind
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{
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unsigned x;
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enum retro_key sk;
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};
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static unsigned keysym_lut[RETROK_LAST];
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static const struct key_bind lut_binds[] = {
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{ XK_Left, RETROK_LEFT },
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{ XK_Right, RETROK_RIGHT },
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{ XK_Up, RETROK_UP },
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{ XK_Down, RETROK_DOWN },
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{ XK_Return, RETROK_RETURN },
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{ XK_Tab, RETROK_TAB },
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{ XK_Insert, RETROK_INSERT },
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{ XK_Home, RETROK_HOME },
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{ XK_End, RETROK_END },
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{ XK_Page_Up, RETROK_PAGEUP },
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{ XK_Page_Down, RETROK_PAGEDOWN },
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{ XK_Delete, RETROK_DELETE },
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{ XK_Shift_R, RETROK_RSHIFT },
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{ XK_Shift_L, RETROK_LSHIFT },
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{ XK_Control_L, RETROK_LCTRL },
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{ XK_Alt_L, RETROK_LALT },
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{ XK_space, RETROK_SPACE },
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{ XK_Escape, RETROK_ESCAPE },
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{ XK_BackSpace, RETROK_BACKSPACE },
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{ XK_KP_Enter, RETROK_KP_ENTER },
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{ XK_KP_Add, RETROK_KP_PLUS },
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{ XK_KP_Subtract, RETROK_KP_MINUS },
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{ XK_KP_Multiply, RETROK_KP_MULTIPLY },
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{ XK_KP_Divide, RETROK_KP_DIVIDE },
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{ XK_grave, RETROK_BACKQUOTE },
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{ XK_Pause, RETROK_PAUSE },
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{ XK_KP_0, RETROK_KP0 },
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{ XK_KP_1, RETROK_KP1 },
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{ XK_KP_2, RETROK_KP2 },
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{ XK_KP_3, RETROK_KP3 },
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{ XK_KP_4, RETROK_KP4 },
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{ XK_KP_5, RETROK_KP5 },
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{ XK_KP_6, RETROK_KP6 },
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{ XK_KP_7, RETROK_KP7 },
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{ XK_KP_8, RETROK_KP8 },
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{ XK_KP_9, RETROK_KP9 },
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{ XK_0, RETROK_0 },
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{ XK_1, RETROK_1 },
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{ XK_2, RETROK_2 },
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{ XK_3, RETROK_3 },
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{ XK_4, RETROK_4 },
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{ XK_5, RETROK_5 },
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{ XK_6, RETROK_6 },
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{ XK_7, RETROK_7 },
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{ XK_8, RETROK_8 },
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{ XK_9, RETROK_9 },
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{ XK_F1, RETROK_F1 },
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{ XK_F2, RETROK_F2 },
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{ XK_F3, RETROK_F3 },
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{ XK_F4, RETROK_F4 },
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{ XK_F5, RETROK_F5 },
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{ XK_F6, RETROK_F6 },
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{ XK_F7, RETROK_F7 },
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{ XK_F8, RETROK_F8 },
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{ XK_F9, RETROK_F9 },
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{ XK_F10, RETROK_F10 },
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{ XK_F11, RETROK_F11 },
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{ XK_F12, RETROK_F12 },
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{ XK_a, RETROK_a },
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{ XK_b, RETROK_b },
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{ XK_c, RETROK_c },
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{ XK_d, RETROK_d },
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{ XK_e, RETROK_e },
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{ XK_f, RETROK_f },
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{ XK_g, RETROK_g },
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{ XK_h, RETROK_h },
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{ XK_i, RETROK_i },
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{ XK_j, RETROK_j },
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{ XK_k, RETROK_k },
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{ XK_l, RETROK_l },
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{ XK_m, RETROK_m },
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{ XK_n, RETROK_n },
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{ XK_o, RETROK_o },
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{ XK_p, RETROK_p },
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{ XK_q, RETROK_q },
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{ XK_r, RETROK_r },
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{ XK_s, RETROK_s },
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{ XK_t, RETROK_t },
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{ XK_u, RETROK_u },
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{ XK_v, RETROK_v },
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{ XK_w, RETROK_w },
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{ XK_x, RETROK_x },
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{ XK_y, RETROK_y },
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{ XK_z, RETROK_z },
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};
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static void init_lut(void)
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{
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memset(keysym_lut, 0, sizeof(keysym_lut));
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for (unsigned i = 0; i < sizeof(lut_binds) / sizeof(lut_binds[0]); i++)
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keysym_lut[lut_binds[i].sk] = lut_binds[i].x;
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}
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static void *x_input_init(void)
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{
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x11_input_t *x11 = (x11_input_t*)calloc(1, sizeof(*x11));
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if (!x11)
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return NULL;
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x11->display = XOpenDisplay(NULL);
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if (!x11->display)
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{
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free(x11);
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return NULL;
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}
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x11->sdl = (sdl_input_t*)input_sdl.init();
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if (!x11->sdl)
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{
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free(x11);
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return NULL;
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}
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init_lut();
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x11->sdl->use_keyboard = false;
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return x11;
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}
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static bool x_key_pressed(x11_input_t *x11, int key)
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{
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if (key >= RETROK_LAST)
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return false;
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key = keysym_lut[key];
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int keycode = XKeysymToKeycode(x11->display, key);
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bool ret = x11->state[keycode >> 3] & (1 << (keycode & 7));
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return ret;
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}
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static bool x_is_pressed(x11_input_t *x11, const struct retro_keybind *binds, unsigned id)
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{
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if (id < RARCH_BIND_LIST_END)
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{
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const struct retro_keybind *bind = &binds[id];
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return bind->valid && x_key_pressed(x11, binds[id].key);
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}
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else
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return false;
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}
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static bool x_bind_button_pressed(void *data, int key)
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{
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x11_input_t *x11 = (x11_input_t*)data;
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return x_is_pressed(x11, g_settings.input.binds[0], key) ||
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input_sdl.key_pressed(x11->sdl, key);
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}
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static void conv_analog_id_to_bind_id(unsigned index, unsigned id,
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unsigned *id_minus, unsigned *id_plus)
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{
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switch ((index << 1) | id)
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{
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case (RETRO_DEVICE_INDEX_ANALOG_LEFT << 1) | RETRO_DEVICE_ID_ANALOG_X:
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*id_minus = RARCH_ANALOG_LEFT_X_MINUS;
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*id_plus = RARCH_ANALOG_LEFT_X_PLUS;
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break;
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case (RETRO_DEVICE_INDEX_ANALOG_LEFT << 1) | RETRO_DEVICE_ID_ANALOG_Y:
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*id_minus = RARCH_ANALOG_LEFT_Y_MINUS;
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*id_plus = RARCH_ANALOG_LEFT_Y_PLUS;
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break;
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case (RETRO_DEVICE_INDEX_ANALOG_RIGHT << 1) | RETRO_DEVICE_ID_ANALOG_X:
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*id_minus = RARCH_ANALOG_RIGHT_X_MINUS;
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*id_plus = RARCH_ANALOG_RIGHT_X_PLUS;
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break;
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case (RETRO_DEVICE_INDEX_ANALOG_RIGHT << 1) | RETRO_DEVICE_ID_ANALOG_Y:
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*id_minus = RARCH_ANALOG_RIGHT_Y_MINUS;
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*id_plus = RARCH_ANALOG_RIGHT_Y_PLUS;
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break;
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}
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}
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static int16_t x_analog_state(x11_input_t *x11, const struct retro_keybind **binds_,
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unsigned port, unsigned index, unsigned id)
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{
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const struct retro_keybind *binds = binds_[port];
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if (id >= RARCH_BIND_LIST_END)
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return 0;
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unsigned id_minus = 0;
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unsigned id_plus = 0;
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conv_analog_id_to_bind_id(index, id, &id_minus, &id_plus);
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const struct retro_keybind *bind_minus = &binds[id_minus];
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const struct retro_keybind *bind_plus = &binds[id_plus];
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if (!bind_minus->valid || !bind_plus->valid)
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return 0;
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int16_t res_minus = x_is_pressed(x11, binds, id_minus) ? -0x7fff : 0;
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int16_t res_plus = x_is_pressed(x11, binds, id_plus) ? 0x7fff : 0;
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return res_plus + res_minus;
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}
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static int16_t x_input_state(void *data, const struct retro_keybind **binds, unsigned port, unsigned device, unsigned index, unsigned id)
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{
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x11_input_t *x11 = (x11_input_t*)data;
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switch (device)
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{
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case RETRO_DEVICE_JOYPAD:
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return x_is_pressed(x11, binds[port], id) ||
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input_sdl.input_state(x11->sdl, binds, port, device, index, id);
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case RETRO_DEVICE_KEYBOARD:
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return x_key_pressed(x11, id);
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case RETRO_DEVICE_ANALOG:
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{
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int16_t ret = input_sdl.input_state(x11->sdl, binds, port, device, index, id);
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if (!ret)
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ret = x_analog_state(x11, binds, port, index, id);
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return ret;
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}
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default:
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return 0;
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}
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}
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static void x_input_free(void *data)
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{
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x11_input_t *x11 = (x11_input_t*)data;
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input_sdl.free(x11->sdl);
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XCloseDisplay(x11->display);
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free(data);
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}
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static void x_input_poll(void *data)
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{
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x11_input_t *x11 = (x11_input_t*)data;
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XQueryKeymap(x11->display, x11->state);
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input_sdl.poll(x11->sdl);
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}
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const input_driver_t input_x = {
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x_input_init,
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x_input_poll,
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x_input_state,
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x_bind_button_pressed,
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x_input_free,
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"x"
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};
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