LXR qemu/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
  33static uint8_t modifiers_state[SDL_NUM_SCANCODES];
  34
  35void 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
  51void 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}
 102