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;
60 screen = SDL_SetVideoMode(w, h, 0, flags);
62 fprintf(stderr, "Could not open SDL display\n");
65 if (!screen->pixels && (flags & SDL_HWSURFACE) && (flags & SDL_FULLSCREEN)) {
66 flags &= ~SDL_HWSURFACE;
70 if (!screen->pixels) {
71 fprintf(stderr, "Could not open SDL display\n");
74 ds->data = screen->pixels;
75 ds->linesize = screen->pitch;
76 ds->depth = screen->format->BitsPerPixel;
81 /* generic keyboard conversion */
83 #include "sdl_keysym.h"
86 static kbd_layout_t *kbd_layout = NULL;
88 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
91 /* workaround for X11+SDL bug with AltGR */
92 keysym = ev->keysym.sym;
93 if (keysym == 0 && ev->keysym.scancode == 113)
95 return keysym2scancode(kbd_layout, keysym);
98 /* specific keyboard conversions from scan codes */
102 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
104 return ev->keysym.scancode;
109 static const uint8_t x_keycode_to_pc_keycode[61] = {
115 0xcd, /* 102 Right */
121 0x9c, /* 108 Enter */
122 0x9d, /* 109 Ctrl-R */
124 0xb7, /* 111 Print */
125 0xb5, /* 112 Divide */
126 0xb8, /* 113 Alt-R */
127 0xc6, /* 114 Break */
133 0x70, /* 120 Hiragana_Katakana */
136 0x73, /* 123 backslash */
142 0x79, /* 129 Henkan */
144 0x7b, /* 131 Muhenkan */
160 0x47, /* 147 KP_HOME */
161 0x48, /* 148 KP_UP */
162 0x49, /* 149 KP_PgUp */
163 0x4b, /* 150 KP_Left */
165 0x4d, /* 152 KP_Right */
166 0x4f, /* 153 KP_End */
167 0x50, /* 154 KP_Down */
168 0x51, /* 155 KP_PgDn */
169 0x52, /* 156 KP_Ins */
170 0x53, /* 157 KP_Del */
173 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
177 keycode = ev->keysym.scancode;
181 } else if (keycode < 97) {
182 keycode -= 8; /* just an offset */
183 } else if (keycode < 158) {
184 /* use conversion table */
185 keycode = x_keycode_to_pc_keycode[keycode - 97];
194 static void reset_keys(void)
197 for(i = 0; i < 256; i++) {
198 if (modifiers_state[i]) {
200 kbd_put_keycode(0xe0);
201 kbd_put_keycode(i | 0x80);
202 modifiers_state[i] = 0;
207 static void sdl_process_key(SDL_KeyboardEvent *ev)
211 if (ev->keysym.sym == SDLK_PAUSE) {
214 if (ev->type == SDL_KEYUP)
216 kbd_put_keycode(0xe1);
217 kbd_put_keycode(0x1d | v);
218 kbd_put_keycode(0x45 | v);
223 keycode = sdl_keyevent_to_keycode_generic(ev);
225 keycode = sdl_keyevent_to_keycode(ev);
230 /* sent when leaving window: reset the modifiers state */
233 case 0x2a: /* Left Shift */
234 case 0x36: /* Right Shift */
235 case 0x1d: /* Left CTRL */
236 case 0x9d: /* Right CTRL */
237 case 0x38: /* Left ALT */
238 case 0xb8: /* Right ALT */
239 if (ev->type == SDL_KEYUP)
240 modifiers_state[keycode] = 0;
242 modifiers_state[keycode] = 1;
244 case 0x45: /* num lock */
245 case 0x3a: /* caps lock */
246 /* SDL does not send the key up event, so we generate it */
247 kbd_put_keycode(keycode);
248 kbd_put_keycode(keycode | 0x80);
252 /* now send the key code */
254 kbd_put_keycode(0xe0);
255 if (ev->type == SDL_KEYUP)
256 kbd_put_keycode(keycode | 0x80);
258 kbd_put_keycode(keycode & 0x7f);
261 static void sdl_update_caption(void)
266 strcat(buf, " [Stopped]");
269 strcat(buf, " - Press Ctrl-Alt to exit grab");
271 SDL_WM_SetCaption(buf, "QEMU");
274 static void sdl_grab_start(void)
277 SDL_WM_GrabInput(SDL_GRAB_ON);
278 /* dummy read to avoid moving the mouse */
279 SDL_GetRelativeMouseState(NULL, NULL);
281 sdl_update_caption();
284 static void sdl_grab_end(void)
286 SDL_WM_GrabInput(SDL_GRAB_OFF);
289 sdl_update_caption();
292 static void sdl_send_mouse_event(int dz)
294 int dx, dy, state, buttons;
295 state = SDL_GetRelativeMouseState(&dx, &dy);
297 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
298 buttons |= MOUSE_EVENT_LBUTTON;
299 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
300 buttons |= MOUSE_EVENT_RBUTTON;
301 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
302 buttons |= MOUSE_EVENT_MBUTTON;
303 kbd_mouse_event(dx, dy, dz, buttons);
306 static void toggle_full_screen(DisplayState *ds)
308 gui_fullscreen = !gui_fullscreen;
309 sdl_resize(ds, screen->w, screen->h);
310 if (gui_fullscreen) {
311 gui_saved_grab = gui_grab;
317 vga_invalidate_display();
318 vga_update_display();
321 static void sdl_refresh(DisplayState *ds)
323 SDL_Event ev1, *ev = &ev1;
326 if (last_vm_running != vm_running) {
327 last_vm_running = vm_running;
328 sdl_update_caption();
331 if (is_active_console(vga_console))
332 vga_update_display();
334 while (SDL_PollEvent(ev)) {
336 case SDL_VIDEOEXPOSE:
337 sdl_update(ds, 0, 0, screen->w, screen->h);
341 if (ev->type == SDL_KEYDOWN) {
342 mod_state = (SDL_GetModState() & gui_grab_code) ==
344 gui_key_modifier_pressed = mod_state;
345 if (gui_key_modifier_pressed) {
347 keycode = sdl_keyevent_to_keycode(&ev->key);
349 case 0x21: /* 'f' key on US keyboard */
350 toggle_full_screen(ds);
353 case 0x02 ... 0x0a: /* '1' to '9' keys */
354 console_select(keycode - 0x02);
355 if (is_active_console(vga_console)) {
356 /* tell the vga console to redisplay itself */
357 vga_invalidate_display();
359 /* display grab if going to a text console */
368 } else if (!is_active_console(vga_console)) {
371 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
372 switch(ev->key.keysym.sym) {
373 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
374 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
375 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
376 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
377 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
378 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
379 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
380 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
384 switch(ev->key.keysym.sym) {
385 case SDLK_UP: keysym = QEMU_KEY_UP; break;
386 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
387 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
388 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
389 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
390 case SDLK_END: keysym = QEMU_KEY_END; break;
391 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
392 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
393 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break; case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
398 kbd_put_keysym(keysym);
399 } else if (ev->key.keysym.unicode != 0) {
400 kbd_put_keysym(ev->key.keysym.unicode);
403 } else if (ev->type == SDL_KEYUP) {
404 mod_state = (ev->key.keysym.mod & gui_grab_code);
406 if (gui_key_modifier_pressed) {
407 if (gui_keysym == 0) {
408 /* exit/enter grab if pressing Ctrl-Alt */
413 /* SDL does not send back all the
414 modifiers key, so we must correct it */
418 gui_key_modifier_pressed = 0;
423 if (is_active_console(vga_console))
424 sdl_process_key(&ev->key);
427 qemu_system_shutdown_request();
429 case SDL_MOUSEMOTION:
431 sdl_send_mouse_event(0);
434 case SDL_MOUSEBUTTONDOWN:
435 case SDL_MOUSEBUTTONUP:
437 SDL_MouseButtonEvent *bev = &ev->button;
439 if (ev->type == SDL_MOUSEBUTTONDOWN &&
440 (bev->state & SDL_BUTTON_LMASK)) {
441 /* start grabbing all events */
447 #ifdef SDL_BUTTON_WHEELUP
448 if (bev->button == SDL_BUTTON_WHEELUP) {
450 } else if (bev->button == SDL_BUTTON_WHEELDOWN) {
454 sdl_send_mouse_event(dz);
458 case SDL_ACTIVEEVENT:
459 if (gui_grab && (ev->active.gain & SDL_ACTIVEEVENTMASK) == 0 &&
460 !gui_fullscreen_initial_grab) {
470 static void sdl_cleanup(void)
475 void sdl_display_init(DisplayState *ds, int full_screen)
479 #if defined(__APPLE__)
480 /* always use generic keymaps */
481 if (!keyboard_layout)
482 keyboard_layout = "en-us";
484 if(keyboard_layout) {
485 kbd_layout = init_keyboard_layout(keyboard_layout);
490 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
491 if (SDL_Init (flags)) {
492 fprintf(stderr, "Could not initialize SDL - exiting\n");
496 /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
497 signal(SIGINT, SIG_DFL);
498 signal(SIGQUIT, SIG_DFL);
501 ds->dpy_update = sdl_update;
502 ds->dpy_resize = sdl_resize;
503 ds->dpy_refresh = sdl_refresh;
505 sdl_resize(ds, 640, 400);
506 sdl_update_caption();
507 SDL_EnableKeyRepeat(250, 50);
508 SDL_EnableUNICODE(1);
514 gui_fullscreen_initial_grab = 1;