2 * QEMU SDL display driver
4 * Copyright (c) 2003 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
32 static SDL_Surface *screen;
33 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
34 static int last_vm_running;
35 static int gui_saved_grab;
36 static int gui_fullscreen;
37 static int gui_key_modifier_pressed;
38 static int gui_keysym;
39 static int gui_fullscreen_initial_grab;
40 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
41 static uint8_t modifiers_state[256];
43 static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
45 // printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
46 SDL_UpdateRect(screen, x, y, w, h);
49 static void sdl_resize(DisplayState *ds, int w, int h)
53 // printf("resizing to %d %d\n", w, h);
55 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
57 flags |= SDL_FULLSCREEN;
58 screen = SDL_SetVideoMode(w, h, 0, flags);
60 fprintf(stderr, "Could not open SDL display\n");
63 ds->data = screen->pixels;
64 ds->linesize = screen->pitch;
65 ds->depth = screen->format->BitsPerPixel;
70 /* generic keyboard conversion */
72 #include "sdl_keysym.h"
75 static kbd_layout_t *kbd_layout = NULL;
77 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
80 /* workaround for X11+SDL bug with AltGR */
81 keysym = ev->keysym.sym;
82 if (keysym == 0 && ev->keysym.scancode == 113)
84 return keysym2scancode(kbd_layout, keysym);
87 /* specific keyboard conversions from scan codes */
91 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
93 return ev->keysym.scancode;
98 static const uint8_t x_keycode_to_pc_keycode[61] = {
104 0xcd, /* 102 Right */
110 0x9c, /* 108 Enter */
111 0x9d, /* 109 Ctrl-R */
113 0xb7, /* 111 Print */
114 0xb5, /* 112 Divide */
115 0xb8, /* 113 Alt-R */
116 0xc6, /* 114 Break */
122 0x70, /* 120 Hiragana_Katakana */
125 0x73, /* 123 backslash */
131 0x79, /* 129 Henkan */
133 0x7b, /* 131 Muhenkan */
149 0x47, /* 147 KP_HOME */
150 0x48, /* 148 KP_UP */
151 0x49, /* 149 KP_PgUp */
152 0x4b, /* 150 KP_Left */
154 0x4d, /* 152 KP_Right */
155 0x4f, /* 153 KP_End */
156 0x50, /* 154 KP_Down */
157 0x51, /* 155 KP_PgDn */
158 0x52, /* 156 KP_Ins */
159 0x53, /* 157 KP_Del */
162 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
166 keycode = ev->keysym.scancode;
170 } else if (keycode < 97) {
171 keycode -= 8; /* just an offset */
172 } else if (keycode < 158) {
173 /* use conversion table */
174 keycode = x_keycode_to_pc_keycode[keycode - 97];
183 static void reset_keys(void)
186 for(i = 0; i < 256; i++) {
187 if (modifiers_state[i]) {
189 kbd_put_keycode(0xe0);
190 kbd_put_keycode(i | 0x80);
191 modifiers_state[i] = 0;
196 static void sdl_process_key(SDL_KeyboardEvent *ev)
200 if (ev->keysym.sym == SDLK_PAUSE) {
203 if (ev->type == SDL_KEYUP)
205 kbd_put_keycode(0xe1);
206 kbd_put_keycode(0x1d | v);
207 kbd_put_keycode(0x45 | v);
212 keycode = sdl_keyevent_to_keycode_generic(ev);
214 keycode = sdl_keyevent_to_keycode(ev);
219 /* sent when leaving window: reset the modifiers state */
222 case 0x2a: /* Left Shift */
223 case 0x36: /* Right Shift */
224 case 0x1d: /* Left CTRL */
225 case 0x9d: /* Right CTRL */
226 case 0x38: /* Left ALT */
227 case 0xb8: /* Right ALT */
228 if (ev->type == SDL_KEYUP)
229 modifiers_state[keycode] = 0;
231 modifiers_state[keycode] = 1;
233 case 0x45: /* num lock */
234 case 0x3a: /* caps lock */
235 /* SDL does not send the key up event, so we generate it */
236 kbd_put_keycode(keycode);
237 kbd_put_keycode(keycode | 0x80);
241 /* now send the key code */
243 kbd_put_keycode(0xe0);
244 if (ev->type == SDL_KEYUP)
245 kbd_put_keycode(keycode | 0x80);
247 kbd_put_keycode(keycode & 0x7f);
250 static void sdl_update_caption(void)
255 strcat(buf, " [Stopped]");
258 strcat(buf, " - Press Ctrl-Alt to exit grab");
260 SDL_WM_SetCaption(buf, "QEMU");
263 static void sdl_grab_start(void)
266 SDL_WM_GrabInput(SDL_GRAB_ON);
267 /* dummy read to avoid moving the mouse */
268 SDL_GetRelativeMouseState(NULL, NULL);
270 sdl_update_caption();
273 static void sdl_grab_end(void)
275 SDL_WM_GrabInput(SDL_GRAB_OFF);
278 sdl_update_caption();
281 static void sdl_send_mouse_event(int dz)
283 int dx, dy, state, buttons;
284 state = SDL_GetRelativeMouseState(&dx, &dy);
286 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
287 buttons |= MOUSE_EVENT_LBUTTON;
288 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
289 buttons |= MOUSE_EVENT_RBUTTON;
290 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
291 buttons |= MOUSE_EVENT_MBUTTON;
292 kbd_mouse_event(dx, dy, dz, buttons);
295 static void toggle_full_screen(DisplayState *ds)
297 gui_fullscreen = !gui_fullscreen;
298 sdl_resize(ds, screen->w, screen->h);
299 if (gui_fullscreen) {
300 gui_saved_grab = gui_grab;
306 vga_invalidate_display();
307 vga_update_display();
310 static void sdl_refresh(DisplayState *ds)
312 SDL_Event ev1, *ev = &ev1;
315 if (last_vm_running != vm_running) {
316 last_vm_running = vm_running;
317 sdl_update_caption();
320 if (is_active_console(vga_console))
321 vga_update_display();
323 while (SDL_PollEvent(ev)) {
325 case SDL_VIDEOEXPOSE:
326 sdl_update(ds, 0, 0, screen->w, screen->h);
330 if (ev->type == SDL_KEYDOWN) {
331 mod_state = (SDL_GetModState() & gui_grab_code) ==
333 gui_key_modifier_pressed = mod_state;
334 if (gui_key_modifier_pressed) {
336 keycode = sdl_keyevent_to_keycode(&ev->key);
338 case 0x21: /* 'f' key on US keyboard */
339 toggle_full_screen(ds);
342 case 0x02 ... 0x0a: /* '1' to '9' keys */
343 console_select(keycode - 0x02);
344 if (is_active_console(vga_console)) {
345 /* tell the vga console to redisplay itself */
346 vga_invalidate_display();
348 /* display grab if going to a text console */
357 } else if (!is_active_console(vga_console)) {
360 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
361 switch(ev->key.keysym.sym) {
362 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
363 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
364 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
365 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
366 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
367 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
368 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
369 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
373 switch(ev->key.keysym.sym) {
374 case SDLK_UP: keysym = QEMU_KEY_UP; break;
375 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
376 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
377 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
378 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
379 case SDLK_END: keysym = QEMU_KEY_END; break;
380 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
381 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
382 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break; case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
387 kbd_put_keysym(keysym);
388 } else if (ev->key.keysym.unicode != 0) {
389 kbd_put_keysym(ev->key.keysym.unicode);
392 } else if (ev->type == SDL_KEYUP) {
393 mod_state = (ev->key.keysym.mod & gui_grab_code);
395 if (gui_key_modifier_pressed) {
396 if (gui_keysym == 0) {
397 /* exit/enter grab if pressing Ctrl-Alt */
402 /* SDL does not send back all the
403 modifiers key, so we must correct it */
407 gui_key_modifier_pressed = 0;
412 if (is_active_console(vga_console))
413 sdl_process_key(&ev->key);
416 qemu_system_shutdown_request();
418 case SDL_MOUSEMOTION:
420 sdl_send_mouse_event(0);
423 case SDL_MOUSEBUTTONDOWN:
424 case SDL_MOUSEBUTTONUP:
426 SDL_MouseButtonEvent *bev = &ev->button;
428 if (ev->type == SDL_MOUSEBUTTONDOWN &&
429 (bev->state & SDL_BUTTON_LMASK)) {
430 /* start grabbing all events */
436 #ifdef SDL_BUTTON_WHEELUP
437 if (bev->button == SDL_BUTTON_WHEELUP) {
439 } else if (bev->button == SDL_BUTTON_WHEELDOWN) {
443 sdl_send_mouse_event(dz);
447 case SDL_ACTIVEEVENT:
448 if (gui_grab && (ev->active.gain & SDL_ACTIVEEVENTMASK) == 0 &&
449 !gui_fullscreen_initial_grab) {
459 static void sdl_cleanup(void)
464 void sdl_display_init(DisplayState *ds, int full_screen)
468 #if defined(__APPLE__)
469 /* always use generic keymaps */
470 if (!keyboard_layout)
471 keyboard_layout = "en-us";
473 if(keyboard_layout) {
474 kbd_layout = init_keyboard_layout(keyboard_layout);
479 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
480 if (SDL_Init (flags)) {
481 fprintf(stderr, "Could not initialize SDL - exiting\n");
485 /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
486 signal(SIGINT, SIG_DFL);
487 signal(SIGQUIT, SIG_DFL);
490 ds->dpy_update = sdl_update;
491 ds->dpy_resize = sdl_resize;
492 ds->dpy_refresh = sdl_refresh;
494 sdl_resize(ds, 640, 400);
495 sdl_update_caption();
496 SDL_EnableKeyRepeat(250, 50);
497 SDL_EnableUNICODE(1);
503 gui_fullscreen_initial_grab = 1;