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 uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
129 keycode = ev->keysym.scancode;
133 } else if (keycode < 97) {
134 keycode -= 8; /* just an offset */
135 } else if (keycode < 212) {
136 /* use conversion table */
137 keycode = _translate_keycode(keycode - 97);
146 static void reset_keys(void)
149 for(i = 0; i < 256; i++) {
150 if (modifiers_state[i]) {
152 kbd_put_keycode(0xe0);
153 kbd_put_keycode(i | 0x80);
154 modifiers_state[i] = 0;
159 static void sdl_process_key(SDL_KeyboardEvent *ev)
163 if (ev->keysym.sym == SDLK_PAUSE) {
166 if (ev->type == SDL_KEYUP)
168 kbd_put_keycode(0xe1);
169 kbd_put_keycode(0x1d | v);
170 kbd_put_keycode(0x45 | v);
175 keycode = sdl_keyevent_to_keycode_generic(ev);
177 keycode = sdl_keyevent_to_keycode(ev);
182 /* sent when leaving window: reset the modifiers state */
185 case 0x2a: /* Left Shift */
186 case 0x36: /* Right Shift */
187 case 0x1d: /* Left CTRL */
188 case 0x9d: /* Right CTRL */
189 case 0x38: /* Left ALT */
190 case 0xb8: /* Right ALT */
191 if (ev->type == SDL_KEYUP)
192 modifiers_state[keycode] = 0;
194 modifiers_state[keycode] = 1;
196 case 0x45: /* num lock */
197 case 0x3a: /* caps lock */
198 /* SDL does not send the key up event, so we generate it */
199 kbd_put_keycode(keycode);
200 kbd_put_keycode(keycode | 0x80);
204 /* now send the key code */
206 kbd_put_keycode(0xe0);
207 if (ev->type == SDL_KEYUP)
208 kbd_put_keycode(keycode | 0x80);
210 kbd_put_keycode(keycode & 0x7f);
213 static void sdl_update_caption(void)
218 strcat(buf, " [Stopped]");
221 strcat(buf, " - Press Ctrl-Alt to exit grab");
223 SDL_WM_SetCaption(buf, "QEMU");
226 static void sdl_hide_cursor(void)
228 if (kbd_mouse_is_absolute()) {
230 SDL_SetCursor(sdl_cursor_hidden);
236 static void sdl_show_cursor(void)
238 if (!kbd_mouse_is_absolute()) {
240 SDL_SetCursor(sdl_cursor_normal);
244 static void sdl_grab_start(void)
247 SDL_WM_GrabInput(SDL_GRAB_ON);
248 /* dummy read to avoid moving the mouse */
249 SDL_GetRelativeMouseState(NULL, NULL);
251 sdl_update_caption();
254 static void sdl_grab_end(void)
256 SDL_WM_GrabInput(SDL_GRAB_OFF);
259 sdl_update_caption();
262 static void sdl_send_mouse_event(int dz)
264 int dx, dy, state, buttons;
265 state = SDL_GetRelativeMouseState(&dx, &dy);
267 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
268 buttons |= MOUSE_EVENT_LBUTTON;
269 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
270 buttons |= MOUSE_EVENT_RBUTTON;
271 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
272 buttons |= MOUSE_EVENT_MBUTTON;
274 if (kbd_mouse_is_absolute()) {
275 if (!absolute_enabled) {
280 absolute_enabled = 1;
283 SDL_GetMouseState(&dx, &dy);
284 dx = dx * 0x7FFF / width;
285 dy = dy * 0x7FFF / height;
286 } else if (absolute_enabled) {
288 absolute_enabled = 0;
291 kbd_mouse_event(dx, dy, dz, buttons);
294 static void toggle_full_screen(DisplayState *ds)
296 gui_fullscreen = !gui_fullscreen;
297 sdl_resize(ds, screen->w, screen->h);
298 if (gui_fullscreen) {
299 gui_saved_grab = gui_grab;
309 static void sdl_refresh(DisplayState *ds)
311 SDL_Event ev1, *ev = &ev1;
314 if (last_vm_running != vm_running) {
315 last_vm_running = vm_running;
316 sdl_update_caption();
321 while (SDL_PollEvent(ev)) {
323 case SDL_VIDEOEXPOSE:
324 sdl_update(ds, 0, 0, screen->w, screen->h);
328 if (ev->type == SDL_KEYDOWN) {
329 mod_state = (SDL_GetModState() & gui_grab_code) ==
331 gui_key_modifier_pressed = mod_state;
332 if (gui_key_modifier_pressed) {
334 keycode = sdl_keyevent_to_keycode(&ev->key);
336 case 0x21: /* 'f' key on US keyboard */
337 toggle_full_screen(ds);
340 case 0x02 ... 0x0a: /* '1' to '9' keys */
341 /* Reset the modifiers sent to the current console */
343 console_select(keycode - 0x02);
344 if (!is_graphic_console()) {
345 /* display grab if going to a text console */
354 } else if (!is_graphic_console()) {
357 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
358 switch(ev->key.keysym.sym) {
359 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
360 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
361 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
362 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
363 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
364 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
365 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
366 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
370 switch(ev->key.keysym.sym) {
371 case SDLK_UP: keysym = QEMU_KEY_UP; break;
372 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
373 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
374 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
375 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
376 case SDLK_END: keysym = QEMU_KEY_END; break;
377 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
378 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
379 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break; case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
384 kbd_put_keysym(keysym);
385 } else if (ev->key.keysym.unicode != 0) {
386 kbd_put_keysym(ev->key.keysym.unicode);
389 } else if (ev->type == SDL_KEYUP) {
390 mod_state = (ev->key.keysym.mod & gui_grab_code);
392 if (gui_key_modifier_pressed) {
393 gui_key_modifier_pressed = 0;
394 if (gui_keysym == 0) {
395 /* exit/enter grab if pressing Ctrl-Alt */
397 /* if the application is not active,
398 do not try to enter grab state. It
400 'SDL_WM_GrabInput(SDL_GRAB_ON)'
401 from blocking all the application
403 if (SDL_GetAppState() & SDL_APPACTIVE)
408 /* SDL does not send back all the
409 modifiers key, so we must correct it */
417 if (is_graphic_console() && !gui_keysym)
418 sdl_process_key(&ev->key);
422 qemu_system_shutdown_request();
425 case SDL_MOUSEMOTION:
426 if (gui_grab || kbd_mouse_is_absolute() ||
428 sdl_send_mouse_event(0);
431 case SDL_MOUSEBUTTONDOWN:
432 case SDL_MOUSEBUTTONUP:
434 SDL_MouseButtonEvent *bev = &ev->button;
435 if (!gui_grab && !kbd_mouse_is_absolute()) {
436 if (ev->type == SDL_MOUSEBUTTONDOWN &&
437 (bev->state & SDL_BUTTON_LMASK)) {
438 /* start grabbing all events */
444 #ifdef SDL_BUTTON_WHEELUP
445 if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
447 } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
451 sdl_send_mouse_event(dz);
455 case SDL_ACTIVEEVENT:
456 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
457 !ev->active.gain && !gui_fullscreen_initial_grab) {
467 static void sdl_cleanup(void)
472 void sdl_display_init(DisplayState *ds, int full_screen)
477 #if defined(__APPLE__)
478 /* always use generic keymaps */
479 if (!keyboard_layout)
480 keyboard_layout = "en-us";
482 if(keyboard_layout) {
483 kbd_layout = init_keyboard_layout(keyboard_layout);
488 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
489 if (SDL_Init (flags)) {
490 fprintf(stderr, "Could not initialize SDL - exiting\n");
494 /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
495 signal(SIGINT, SIG_DFL);
496 signal(SIGQUIT, SIG_DFL);
499 ds->dpy_update = sdl_update;
500 ds->dpy_resize = sdl_resize;
501 ds->dpy_refresh = sdl_refresh;
503 sdl_resize(ds, 640, 400);
504 sdl_update_caption();
505 SDL_EnableKeyRepeat(250, 50);
506 SDL_EnableUNICODE(1);
509 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
510 sdl_cursor_normal = SDL_GetCursor();
515 gui_fullscreen_initial_grab = 1;