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];
42 static int width, height;
43 static SDL_Cursor *sdl_cursor_normal;
44 static SDL_Cursor *sdl_cursor_hidden;
45 static int absolute_enabled = 0;
47 static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
49 // printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
50 SDL_UpdateRect(screen, x, y, w, h);
53 static void sdl_resize(DisplayState *ds, int w, int h)
57 // printf("resizing to %d %d\n", w, h);
59 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
61 flags |= SDL_FULLSCREEN;
67 screen = SDL_SetVideoMode(w, h, 0, flags);
69 fprintf(stderr, "Could not open SDL display\n");
72 if (!screen->pixels && (flags & SDL_HWSURFACE) && (flags & SDL_FULLSCREEN)) {
73 flags &= ~SDL_HWSURFACE;
77 if (!screen->pixels) {
78 fprintf(stderr, "Could not open SDL display\n");
81 ds->data = screen->pixels;
82 ds->linesize = screen->pitch;
83 ds->depth = screen->format->BitsPerPixel;
84 if (ds->depth == 32 && screen->format->Rshift == 0) {
93 /* generic keyboard conversion */
95 #include "sdl_keysym.h"
98 static kbd_layout_t *kbd_layout = NULL;
100 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
103 /* workaround for X11+SDL bug with AltGR */
104 keysym = ev->keysym.sym;
105 if (keysym == 0 && ev->keysym.scancode == 113)
107 /* For Japanese key '\' and '|' */
108 if (keysym == 92 && ev->keysym.scancode == 133) {
111 return keysym2scancode(kbd_layout, keysym);
114 /* specific keyboard conversions from scan codes */
118 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
120 return ev->keysym.scancode;
125 static const uint8_t x_keycode_to_pc_keycode[115] = {
131 0xcd, /* 102 Right */
137 0x9c, /* 108 Enter */
138 0x9d, /* 109 Ctrl-R */
140 0xb7, /* 111 Print */
141 0xb5, /* 112 Divide */
142 0xb8, /* 113 Alt-R */
143 0xc6, /* 114 Break */
158 0x79, /* 129 Henkan */
160 0x7b, /* 131 Muhenkan */
176 0x47, /* 147 KP_HOME */
177 0x48, /* 148 KP_UP */
178 0x49, /* 149 KP_PgUp */
179 0x4b, /* 150 KP_Left */
181 0x4d, /* 152 KP_Right */
182 0x4f, /* 153 KP_End */
183 0x50, /* 154 KP_Down */
184 0x51, /* 155 KP_PgDn */
185 0x52, /* 156 KP_Ins */
186 0x53, /* 157 KP_Del */
190 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* 170 */
191 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* 180 */
192 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* 190 */
193 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* 200 */
201 0x70, /* 208 Hiragana_Katakana */
204 0x73, /* 211 backslash */
207 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
211 keycode = ev->keysym.scancode;
215 } else if (keycode < 97) {
216 keycode -= 8; /* just an offset */
217 } else if (keycode < 212) {
218 /* use conversion table */
219 keycode = x_keycode_to_pc_keycode[keycode - 97];
228 static void reset_keys(void)
231 for(i = 0; i < 256; i++) {
232 if (modifiers_state[i]) {
234 kbd_put_keycode(0xe0);
235 kbd_put_keycode(i | 0x80);
236 modifiers_state[i] = 0;
241 static void sdl_process_key(SDL_KeyboardEvent *ev)
245 if (ev->keysym.sym == SDLK_PAUSE) {
248 if (ev->type == SDL_KEYUP)
250 kbd_put_keycode(0xe1);
251 kbd_put_keycode(0x1d | v);
252 kbd_put_keycode(0x45 | v);
257 keycode = sdl_keyevent_to_keycode_generic(ev);
259 keycode = sdl_keyevent_to_keycode(ev);
264 /* sent when leaving window: reset the modifiers state */
267 case 0x2a: /* Left Shift */
268 case 0x36: /* Right Shift */
269 case 0x1d: /* Left CTRL */
270 case 0x9d: /* Right CTRL */
271 case 0x38: /* Left ALT */
272 case 0xb8: /* Right ALT */
273 if (ev->type == SDL_KEYUP)
274 modifiers_state[keycode] = 0;
276 modifiers_state[keycode] = 1;
278 case 0x45: /* num lock */
279 case 0x3a: /* caps lock */
280 /* SDL does not send the key up event, so we generate it */
281 kbd_put_keycode(keycode);
282 kbd_put_keycode(keycode | 0x80);
286 /* now send the key code */
288 kbd_put_keycode(0xe0);
289 if (ev->type == SDL_KEYUP)
290 kbd_put_keycode(keycode | 0x80);
292 kbd_put_keycode(keycode & 0x7f);
295 static void sdl_update_caption(void)
300 strcat(buf, " [Stopped]");
303 strcat(buf, " - Press Ctrl-Alt to exit grab");
305 SDL_WM_SetCaption(buf, "QEMU");
308 static void sdl_hide_cursor(void)
310 if (kbd_mouse_is_absolute()) {
312 SDL_SetCursor(sdl_cursor_hidden);
318 static void sdl_show_cursor(void)
320 if (!kbd_mouse_is_absolute()) {
322 SDL_SetCursor(sdl_cursor_normal);
326 static void sdl_grab_start(void)
329 SDL_WM_GrabInput(SDL_GRAB_ON);
330 /* dummy read to avoid moving the mouse */
331 SDL_GetRelativeMouseState(NULL, NULL);
333 sdl_update_caption();
336 static void sdl_grab_end(void)
338 SDL_WM_GrabInput(SDL_GRAB_OFF);
341 sdl_update_caption();
344 static void sdl_send_mouse_event(int dz)
346 int dx, dy, state, buttons;
347 state = SDL_GetRelativeMouseState(&dx, &dy);
349 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
350 buttons |= MOUSE_EVENT_LBUTTON;
351 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
352 buttons |= MOUSE_EVENT_RBUTTON;
353 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
354 buttons |= MOUSE_EVENT_MBUTTON;
356 if (kbd_mouse_is_absolute()) {
357 if (!absolute_enabled) {
362 absolute_enabled = 1;
365 SDL_GetMouseState(&dx, &dy);
366 dx = dx * 0x7FFF / width;
367 dy = dy * 0x7FFF / height;
368 } else if (absolute_enabled) {
370 absolute_enabled = 0;
373 kbd_mouse_event(dx, dy, dz, buttons);
376 static void toggle_full_screen(DisplayState *ds)
378 gui_fullscreen = !gui_fullscreen;
379 sdl_resize(ds, screen->w, screen->h);
380 if (gui_fullscreen) {
381 gui_saved_grab = gui_grab;
391 static void sdl_refresh(DisplayState *ds)
393 SDL_Event ev1, *ev = &ev1;
396 if (last_vm_running != vm_running) {
397 last_vm_running = vm_running;
398 sdl_update_caption();
403 while (SDL_PollEvent(ev)) {
405 case SDL_VIDEOEXPOSE:
406 sdl_update(ds, 0, 0, screen->w, screen->h);
410 if (ev->type == SDL_KEYDOWN) {
411 mod_state = (SDL_GetModState() & gui_grab_code) ==
413 gui_key_modifier_pressed = mod_state;
414 if (gui_key_modifier_pressed) {
416 keycode = sdl_keyevent_to_keycode(&ev->key);
418 case 0x21: /* 'f' key on US keyboard */
419 toggle_full_screen(ds);
422 case 0x02 ... 0x0a: /* '1' to '9' keys */
423 /* Reset the modifiers sent to the current console */
425 console_select(keycode - 0x02);
426 if (!is_graphic_console()) {
427 /* display grab if going to a text console */
436 } else if (!is_graphic_console()) {
439 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
440 switch(ev->key.keysym.sym) {
441 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
442 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
443 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
444 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
445 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
446 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
447 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
448 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
452 switch(ev->key.keysym.sym) {
453 case SDLK_UP: keysym = QEMU_KEY_UP; break;
454 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
455 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
456 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
457 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
458 case SDLK_END: keysym = QEMU_KEY_END; break;
459 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
460 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
461 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break; case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
466 kbd_put_keysym(keysym);
467 } else if (ev->key.keysym.unicode != 0) {
468 kbd_put_keysym(ev->key.keysym.unicode);
471 } else if (ev->type == SDL_KEYUP) {
472 mod_state = (ev->key.keysym.mod & gui_grab_code);
474 if (gui_key_modifier_pressed) {
475 gui_key_modifier_pressed = 0;
476 if (gui_keysym == 0) {
477 /* exit/enter grab if pressing Ctrl-Alt */
479 /* if the application is not active,
480 do not try to enter grab state. It
482 'SDL_WM_GrabInput(SDL_GRAB_ON)'
483 from blocking all the application
485 if (SDL_GetAppState() & SDL_APPACTIVE)
490 /* SDL does not send back all the
491 modifiers key, so we must correct it */
499 if (is_graphic_console() && !gui_keysym)
500 sdl_process_key(&ev->key);
504 qemu_system_shutdown_request();
507 case SDL_MOUSEMOTION:
508 if (gui_grab || kbd_mouse_is_absolute() ||
510 sdl_send_mouse_event(0);
513 case SDL_MOUSEBUTTONDOWN:
514 case SDL_MOUSEBUTTONUP:
516 SDL_MouseButtonEvent *bev = &ev->button;
517 if (!gui_grab && !kbd_mouse_is_absolute()) {
518 if (ev->type == SDL_MOUSEBUTTONDOWN &&
519 (bev->state & SDL_BUTTON_LMASK)) {
520 /* start grabbing all events */
526 #ifdef SDL_BUTTON_WHEELUP
527 if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
529 } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
533 sdl_send_mouse_event(dz);
537 case SDL_ACTIVEEVENT:
538 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
539 !ev->active.gain && !gui_fullscreen_initial_grab) {
549 static void sdl_cleanup(void)
554 void sdl_display_init(DisplayState *ds, int full_screen)
559 #if defined(__APPLE__)
560 /* always use generic keymaps */
561 if (!keyboard_layout)
562 keyboard_layout = "en-us";
564 if(keyboard_layout) {
565 kbd_layout = init_keyboard_layout(keyboard_layout);
570 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
571 if (SDL_Init (flags)) {
572 fprintf(stderr, "Could not initialize SDL - exiting\n");
576 /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
577 signal(SIGINT, SIG_DFL);
578 signal(SIGQUIT, SIG_DFL);
581 ds->dpy_update = sdl_update;
582 ds->dpy_resize = sdl_resize;
583 ds->dpy_refresh = sdl_refresh;
585 sdl_resize(ds, 640, 400);
586 sdl_update_caption();
587 SDL_EnableKeyRepeat(250, 50);
588 SDL_EnableUNICODE(1);
591 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
592 sdl_cursor_normal = SDL_GetCursor();
597 gui_fullscreen_initial_grab = 1;