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 return keysym2scancode(kbd_layout, keysym);
110 /* specific keyboard conversions from scan codes */
114 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
116 return ev->keysym.scancode;
121 static const uint8_t x_keycode_to_pc_keycode[61] = {
127 0xcd, /* 102 Right */
133 0x9c, /* 108 Enter */
134 0x9d, /* 109 Ctrl-R */
136 0xb7, /* 111 Print */
137 0xb5, /* 112 Divide */
138 0xb8, /* 113 Alt-R */
139 0xc6, /* 114 Break */
145 0x70, /* 120 Hiragana_Katakana */
148 0x73, /* 123 backslash */
154 0x79, /* 129 Henkan */
156 0x7b, /* 131 Muhenkan */
172 0x47, /* 147 KP_HOME */
173 0x48, /* 148 KP_UP */
174 0x49, /* 149 KP_PgUp */
175 0x4b, /* 150 KP_Left */
177 0x4d, /* 152 KP_Right */
178 0x4f, /* 153 KP_End */
179 0x50, /* 154 KP_Down */
180 0x51, /* 155 KP_PgDn */
181 0x52, /* 156 KP_Ins */
182 0x53, /* 157 KP_Del */
185 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
189 keycode = ev->keysym.scancode;
193 } else if (keycode < 97) {
194 keycode -= 8; /* just an offset */
195 } else if (keycode < 158) {
196 /* use conversion table */
197 keycode = x_keycode_to_pc_keycode[keycode - 97];
206 static void reset_keys(void)
209 for(i = 0; i < 256; i++) {
210 if (modifiers_state[i]) {
212 kbd_put_keycode(0xe0);
213 kbd_put_keycode(i | 0x80);
214 modifiers_state[i] = 0;
219 static void sdl_process_key(SDL_KeyboardEvent *ev)
223 if (ev->keysym.sym == SDLK_PAUSE) {
226 if (ev->type == SDL_KEYUP)
228 kbd_put_keycode(0xe1);
229 kbd_put_keycode(0x1d | v);
230 kbd_put_keycode(0x45 | v);
235 keycode = sdl_keyevent_to_keycode_generic(ev);
237 keycode = sdl_keyevent_to_keycode(ev);
242 /* sent when leaving window: reset the modifiers state */
245 case 0x2a: /* Left Shift */
246 case 0x36: /* Right Shift */
247 case 0x1d: /* Left CTRL */
248 case 0x9d: /* Right CTRL */
249 case 0x38: /* Left ALT */
250 case 0xb8: /* Right ALT */
251 if (ev->type == SDL_KEYUP)
252 modifiers_state[keycode] = 0;
254 modifiers_state[keycode] = 1;
256 case 0x45: /* num lock */
257 case 0x3a: /* caps lock */
258 /* SDL does not send the key up event, so we generate it */
259 kbd_put_keycode(keycode);
260 kbd_put_keycode(keycode | 0x80);
264 /* now send the key code */
266 kbd_put_keycode(0xe0);
267 if (ev->type == SDL_KEYUP)
268 kbd_put_keycode(keycode | 0x80);
270 kbd_put_keycode(keycode & 0x7f);
273 static void sdl_update_caption(void)
278 strcat(buf, " [Stopped]");
281 strcat(buf, " - Press Ctrl-Alt to exit grab");
283 SDL_WM_SetCaption(buf, "QEMU");
286 static void sdl_hide_cursor(void)
288 if (kbd_mouse_is_absolute()) {
290 SDL_SetCursor(sdl_cursor_hidden);
296 static void sdl_show_cursor(void)
298 if (!kbd_mouse_is_absolute()) {
303 static void sdl_grab_start(void)
306 SDL_WM_GrabInput(SDL_GRAB_ON);
307 /* dummy read to avoid moving the mouse */
308 SDL_GetRelativeMouseState(NULL, NULL);
310 sdl_update_caption();
313 static void sdl_grab_end(void)
315 SDL_WM_GrabInput(SDL_GRAB_OFF);
318 sdl_update_caption();
321 static void sdl_send_mouse_event(int dz)
323 int dx, dy, state, buttons;
324 state = SDL_GetRelativeMouseState(&dx, &dy);
326 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
327 buttons |= MOUSE_EVENT_LBUTTON;
328 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
329 buttons |= MOUSE_EVENT_RBUTTON;
330 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
331 buttons |= MOUSE_EVENT_MBUTTON;
333 if (kbd_mouse_is_absolute()) {
334 if (!absolute_enabled) {
339 absolute_enabled = 1;
342 SDL_GetMouseState(&dx, &dy);
343 dx = dx * 0x7FFF / width;
344 dy = dy * 0x7FFF / height;
347 kbd_mouse_event(dx, dy, dz, buttons);
350 static void toggle_full_screen(DisplayState *ds)
352 gui_fullscreen = !gui_fullscreen;
353 sdl_resize(ds, screen->w, screen->h);
354 if (gui_fullscreen) {
355 gui_saved_grab = gui_grab;
365 static void sdl_refresh(DisplayState *ds)
367 SDL_Event ev1, *ev = &ev1;
370 if (last_vm_running != vm_running) {
371 last_vm_running = vm_running;
372 sdl_update_caption();
377 while (SDL_PollEvent(ev)) {
379 case SDL_VIDEOEXPOSE:
380 sdl_update(ds, 0, 0, screen->w, screen->h);
384 if (ev->type == SDL_KEYDOWN) {
385 mod_state = (SDL_GetModState() & gui_grab_code) ==
387 gui_key_modifier_pressed = mod_state;
388 if (gui_key_modifier_pressed) {
390 keycode = sdl_keyevent_to_keycode(&ev->key);
392 case 0x21: /* 'f' key on US keyboard */
393 toggle_full_screen(ds);
396 case 0x02 ... 0x0a: /* '1' to '9' keys */
397 console_select(keycode - 0x02);
398 if (!is_graphic_console()) {
399 /* display grab if going to a text console */
408 } else if (!is_graphic_console()) {
411 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
412 switch(ev->key.keysym.sym) {
413 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
414 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
415 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
416 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
417 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
418 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
419 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
420 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
424 switch(ev->key.keysym.sym) {
425 case SDLK_UP: keysym = QEMU_KEY_UP; break;
426 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
427 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
428 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
429 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
430 case SDLK_END: keysym = QEMU_KEY_END; break;
431 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
432 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
433 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break; case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
438 kbd_put_keysym(keysym);
439 } else if (ev->key.keysym.unicode != 0) {
440 kbd_put_keysym(ev->key.keysym.unicode);
443 } else if (ev->type == SDL_KEYUP) {
444 mod_state = (ev->key.keysym.mod & gui_grab_code);
446 if (gui_key_modifier_pressed) {
447 gui_key_modifier_pressed = 0;
448 if (gui_keysym == 0) {
449 /* exit/enter grab if pressing Ctrl-Alt */
454 /* SDL does not send back all the
455 modifiers key, so we must correct it */
463 if (is_graphic_console())
464 sdl_process_key(&ev->key);
467 qemu_system_shutdown_request();
469 case SDL_MOUSEMOTION:
470 if (gui_grab || kbd_mouse_is_absolute()) {
471 sdl_send_mouse_event(0);
474 case SDL_MOUSEBUTTONDOWN:
475 case SDL_MOUSEBUTTONUP:
477 SDL_MouseButtonEvent *bev = &ev->button;
478 if (!gui_grab && !kbd_mouse_is_absolute()) {
479 if (ev->type == SDL_MOUSEBUTTONDOWN &&
480 (bev->state & SDL_BUTTON_LMASK)) {
481 /* start grabbing all events */
487 #ifdef SDL_BUTTON_WHEELUP
488 if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
490 } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
494 sdl_send_mouse_event(dz);
498 case SDL_ACTIVEEVENT:
499 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
500 !ev->active.gain && !gui_fullscreen_initial_grab) {
510 static void sdl_cleanup(void)
515 void sdl_display_init(DisplayState *ds, int full_screen)
520 #if defined(__APPLE__)
521 /* always use generic keymaps */
522 if (!keyboard_layout)
523 keyboard_layout = "en-us";
525 if(keyboard_layout) {
526 kbd_layout = init_keyboard_layout(keyboard_layout);
531 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
532 if (SDL_Init (flags)) {
533 fprintf(stderr, "Could not initialize SDL - exiting\n");
537 /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
538 signal(SIGINT, SIG_DFL);
539 signal(SIGQUIT, SIG_DFL);
542 ds->dpy_update = sdl_update;
543 ds->dpy_resize = sdl_resize;
544 ds->dpy_refresh = sdl_refresh;
546 sdl_resize(ds, 640, 400);
547 sdl_update_caption();
548 SDL_EnableKeyRepeat(250, 50);
549 SDL_EnableUNICODE(1);
552 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
553 sdl_cursor_normal = SDL_GetCursor();
558 gui_fullscreen_initial_grab = 1;