ui/sdl2-input.c

   1 /*
   2  * QEMU SDL display driver
   3  *
   4  * Copyright (c) 2003 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 /* Ported SDL 1.2 code to 2.0 by Dave Airlie. */
  25
  26 #include "qemu/osdep.h"
  27 #include "qemu-common.h"
  28 #include "ui/console.h"
  29 #include "ui/input.h"
  30 #include "ui/sdl2.h"
  31 #include "sysemu/sysemu.h"
  32
  33 static uint8_t modifiers_state[SDL_NUM_SCANCODES];
  34
  35 void sdl2_reset_keys(struct sdl2_console *scon)
  36 {
  37     QemuConsole *con = scon ? scon->dcl.con : NULL;
  38     int i;
  39
  40     for (i = 0 ;
  41          i < SDL_NUM_SCANCODES && i < qemu_input_map_usb_to_qcode_len ;
  42          i++) {
  43         if (modifiers_state[i]) {
  44             int qcode = qemu_input_map_usb_to_qcode[i];
  45             qemu_input_event_send_key_qcode(con, qcode, false);
  46             modifiers_state[i] = 0;
  47         }
  48     }
  49 }
  50
  51 void sdl2_process_key(struct sdl2_console *scon,
  52                       SDL_KeyboardEvent *ev)
  53 {
  54     int qcode;
  55     QemuConsole *con = scon ? scon->dcl.con : NULL;
  56
  57     if (ev->keysym.scancode >= qemu_input_map_usb_to_qcode_len) {
  58         return;
  59     }
  60
  61     qcode = qemu_input_map_usb_to_qcode[ev->keysym.scancode];
  62
  63     /* modifier state tracking */
  64     switch (ev->keysym.scancode) {
  65     case SDL_SCANCODE_LCTRL:
  66     case SDL_SCANCODE_LSHIFT:
  67     case SDL_SCANCODE_LALT:
  68     case SDL_SCANCODE_LGUI:
  69     case SDL_SCANCODE_RCTRL:
  70     case SDL_SCANCODE_RSHIFT:
  71     case SDL_SCANCODE_RALT:
  72     case SDL_SCANCODE_RGUI:
  73         if (ev->type == SDL_KEYUP) {
  74             modifiers_state[ev->keysym.scancode] = 0;
  75         } else {
  76             modifiers_state[ev->keysym.scancode] = 1;
  77         }
  78         break;
  79     default:
  80         /* nothing */
  81         break;
  82     }
  83
  84     if (!qemu_console_is_graphic(con)) {
  85         bool ctrl = (modifiers_state[SDL_SCANCODE_LCTRL] ||
  86                      modifiers_state[SDL_SCANCODE_RCTRL]);
  87         if (ev->type == SDL_KEYDOWN) {
  88             switch (ev->keysym.scancode) {
  89             case SDL_SCANCODE_RETURN:
  90                 kbd_put_keysym_console(con, '\n');
  91                 break;
  92             default:
  93                 kbd_put_qcode_console(con, qcode, ctrl);
  94                 break;
  95             }
  96         }
  97     } else {
  98         qemu_input_event_send_key_qcode(con, qcode,
  99                                         ev->type == SDL_KEYDOWN);
 100     }
 101 }