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;
56 flags |= SDL_RESIZABLE;
58 flags |= SDL_FULLSCREEN;
59 screen = SDL_SetVideoMode(w, h, 0, flags);
61 fprintf(stderr, "Could not open SDL display\n");
64 ds->data = screen->pixels;
65 ds->linesize = screen->pitch;
66 ds->depth = screen->format->BitsPerPixel;
71 /* generic keyboard conversion */
73 #include "sdl_keysym.h"
76 static kbd_layout_t *kbd_layout = NULL;
78 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
81 /* workaround for X11+SDL bug with AltGR */
82 keysym = ev->keysym.sym;
83 if (keysym == 0 && ev->keysym.scancode == 113)
85 return keysym2scancode(kbd_layout, keysym);
88 /* specific keyboard conversions from scan codes */
92 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
94 return ev->keysym.scancode;
99 static const uint8_t x_keycode_to_pc_keycode[61] = {
105 0xcd, /* 102 Right */
111 0x9c, /* 108 Enter */
112 0x9d, /* 109 Ctrl-R */
114 0xb7, /* 111 Print */
115 0xb5, /* 112 Divide */
116 0xb8, /* 113 Alt-R */
117 0xc6, /* 114 Break */
123 0x70, /* 120 Hiragana_Katakana */
126 0x73, /* 123 backslash */
132 0x79, /* 129 Henkan */
134 0x7b, /* 131 Muhenkan */
150 0x47, /* 147 KP_HOME */
151 0x48, /* 148 KP_UP */
152 0x49, /* 149 KP_PgUp */
153 0x4b, /* 150 KP_Left */
155 0x4d, /* 152 KP_Right */
156 0x4f, /* 153 KP_End */
157 0x50, /* 154 KP_Down */
158 0x51, /* 155 KP_PgDn */
159 0x52, /* 156 KP_Ins */
160 0x53, /* 157 KP_Del */
163 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
167 keycode = ev->keysym.scancode;
171 } else if (keycode < 97) {
172 keycode -= 8; /* just an offset */
173 } else if (keycode < 158) {
174 /* use conversion table */
175 keycode = x_keycode_to_pc_keycode[keycode - 97];
184 static void reset_keys(void)
187 for(i = 0; i < 256; i++) {
188 if (modifiers_state[i]) {
190 kbd_put_keycode(0xe0);
191 kbd_put_keycode(i | 0x80);
192 modifiers_state[i] = 0;
197 static void sdl_process_key(SDL_KeyboardEvent *ev)
201 if (ev->keysym.sym == SDLK_PAUSE) {
204 if (ev->type == SDL_KEYUP)
206 kbd_put_keycode(0xe1);
207 kbd_put_keycode(0x1d | v);
208 kbd_put_keycode(0x45 | v);
213 keycode = sdl_keyevent_to_keycode_generic(ev);
215 keycode = sdl_keyevent_to_keycode(ev);
220 /* sent when leaving window: reset the modifiers state */
223 case 0x2a: /* Left Shift */
224 case 0x36: /* Right Shift */
225 case 0x1d: /* Left CTRL */
226 case 0x9d: /* Right CTRL */
227 case 0x38: /* Left ALT */
228 case 0xb8: /* Right ALT */
229 if (ev->type == SDL_KEYUP)
230 modifiers_state[keycode] = 0;
232 modifiers_state[keycode] = 1;
234 case 0x45: /* num lock */
235 case 0x3a: /* caps lock */
236 /* SDL does not send the key up event, so we generate it */
237 kbd_put_keycode(keycode);
238 kbd_put_keycode(keycode | 0x80);
242 /* now send the key code */
244 kbd_put_keycode(0xe0);
245 if (ev->type == SDL_KEYUP)
246 kbd_put_keycode(keycode | 0x80);
248 kbd_put_keycode(keycode & 0x7f);
251 static void sdl_update_caption(void)
256 strcat(buf, " [Stopped]");
259 strcat(buf, " - Press Ctrl-Alt to exit grab");
261 SDL_WM_SetCaption(buf, "QEMU");
264 static void sdl_grab_start(void)
267 SDL_WM_GrabInput(SDL_GRAB_ON);
268 /* dummy read to avoid moving the mouse */
269 SDL_GetRelativeMouseState(NULL, NULL);
271 sdl_update_caption();
274 static void sdl_grab_end(void)
276 SDL_WM_GrabInput(SDL_GRAB_OFF);
279 sdl_update_caption();
282 static void sdl_send_mouse_event(int dz)
284 int dx, dy, state, buttons;
285 state = SDL_GetRelativeMouseState(&dx, &dy);
287 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
288 buttons |= MOUSE_EVENT_LBUTTON;
289 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
290 buttons |= MOUSE_EVENT_RBUTTON;
291 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
292 buttons |= MOUSE_EVENT_MBUTTON;
293 kbd_mouse_event(dx, dy, dz, buttons);
296 static void toggle_full_screen(DisplayState *ds)
298 gui_fullscreen = !gui_fullscreen;
299 sdl_resize(ds, screen->w, screen->h);
300 if (gui_fullscreen) {
301 gui_saved_grab = gui_grab;
307 vga_invalidate_display();
308 vga_update_display();
311 static void sdl_refresh(DisplayState *ds)
313 SDL_Event ev1, *ev = &ev1;
316 if (last_vm_running != vm_running) {
317 last_vm_running = vm_running;
318 sdl_update_caption();
321 if (is_active_console(vga_console))
322 vga_update_display();
324 while (SDL_PollEvent(ev)) {
326 case SDL_VIDEOEXPOSE:
327 sdl_update(ds, 0, 0, screen->w, screen->h);
331 if (ev->type == SDL_KEYDOWN) {
332 mod_state = (SDL_GetModState() & gui_grab_code) ==
334 gui_key_modifier_pressed = mod_state;
335 if (gui_key_modifier_pressed) {
337 keycode = sdl_keyevent_to_keycode(&ev->key);
339 case 0x21: /* 'f' key on US keyboard */
340 toggle_full_screen(ds);
343 case 0x02 ... 0x0a: /* '1' to '9' keys */
344 console_select(keycode - 0x02);
345 if (is_active_console(vga_console)) {
346 /* tell the vga console to redisplay itself */
347 vga_invalidate_display();
349 /* display grab if going to a text console */
358 } else if (!is_active_console(vga_console)) {
361 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
362 switch(ev->key.keysym.sym) {
363 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
364 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
365 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
366 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
367 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
368 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
369 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
370 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
374 switch(ev->key.keysym.sym) {
375 case SDLK_UP: keysym = QEMU_KEY_UP; break;
376 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
377 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
378 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
379 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
380 case SDLK_END: keysym = QEMU_KEY_END; break;
381 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
382 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
383 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break; case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
388 kbd_put_keysym(keysym);
389 } else if (ev->key.keysym.unicode != 0) {
390 kbd_put_keysym(ev->key.keysym.unicode);
393 } else if (ev->type == SDL_KEYUP) {
394 mod_state = (ev->key.keysym.mod & gui_grab_code);
396 if (gui_key_modifier_pressed) {
397 if (gui_keysym == 0) {
398 /* exit/enter grab if pressing Ctrl-Alt */
403 /* SDL does not send back all the
404 modifiers key, so we must correct it */
408 gui_key_modifier_pressed = 0;
413 if (is_active_console(vga_console))
414 sdl_process_key(&ev->key);
417 qemu_system_shutdown_request();
419 case SDL_MOUSEMOTION:
421 sdl_send_mouse_event(0);
424 case SDL_MOUSEBUTTONDOWN:
425 case SDL_MOUSEBUTTONUP:
427 SDL_MouseButtonEvent *bev = &ev->button;
429 if (ev->type == SDL_MOUSEBUTTONDOWN &&
430 (bev->state & SDL_BUTTON_LMASK)) {
431 /* start grabbing all events */
437 #ifdef SDL_BUTTON_WHEELUP
438 if (bev->button == SDL_BUTTON_WHEELUP) {
440 } else if (bev->button == SDL_BUTTON_WHEELDOWN) {
444 sdl_send_mouse_event(dz);
448 case SDL_ACTIVEEVENT:
449 if (gui_grab && (ev->active.gain & SDL_ACTIVEEVENTMASK) == 0 &&
450 !gui_fullscreen_initial_grab) {
460 static void sdl_cleanup(void)
465 void sdl_display_init(DisplayState *ds, int full_screen)
469 #if defined(__APPLE__)
470 /* always use generic keymaps */
471 if (!keyboard_layout)
472 keyboard_layout = "en-us";
474 if(keyboard_layout) {
475 kbd_layout = init_keyboard_layout(keyboard_layout);
480 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
481 if (SDL_Init (flags)) {
482 fprintf(stderr, "Could not initialize SDL - exiting\n");
486 /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
487 signal(SIGINT, SIG_DFL);
488 signal(SIGQUIT, SIG_DFL);
491 ds->dpy_update = sdl_update;
492 ds->dpy_resize = sdl_resize;
493 ds->dpy_refresh = sdl_refresh;
495 sdl_resize(ds, 640, 400);
496 sdl_update_caption();
497 SDL_EnableKeyRepeat(250, 50);
498 SDL_EnableUNICODE(1);
504 gui_fullscreen_initial_grab = 1;