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
24 #include "qemu-common.h"
34 static DisplayChangeListener *dcl;
35 static SDL_Surface *real_screen;
36 static SDL_Surface *guest_screen = NULL;
37 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
38 static int last_vm_running;
39 static int gui_saved_grab;
40 static int gui_fullscreen;
41 static int gui_noframe;
42 static int gui_key_modifier_pressed;
43 static int gui_keysym;
44 static int gui_fullscreen_initial_grab;
45 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
46 static uint8_t modifiers_state[256];
47 static int width, height;
48 static SDL_Cursor *sdl_cursor_normal;
49 static SDL_Cursor *sdl_cursor_hidden;
50 static int absolute_enabled = 0;
51 static int guest_cursor = 0;
52 static int guest_x, guest_y;
53 static SDL_Cursor *guest_sprite = 0;
55 static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
62 // printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
64 SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
65 SDL_Flip(real_screen);
68 static void sdl_setdata(DisplayState *ds)
73 rec.w = real_screen->w;
74 rec.h = real_screen->h;
76 if (guest_screen != NULL) SDL_FreeSurface(guest_screen);
78 guest_screen = SDL_CreateRGBSurfaceFrom(ds_get_data(ds), ds_get_width(ds), ds_get_height(ds),
79 ds_get_bits_per_pixel(ds), ds_get_linesize(ds),
80 ds->surface->pf.rmask, ds->surface->pf.gmask,
81 ds->surface->pf.bmask, ds->surface->pf.amask);
84 static void sdl_resize(DisplayState *ds)
88 // printf("resizing to %d %d\n", w, h);
90 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
92 flags |= SDL_FULLSCREEN;
97 real_screen = SDL_SetVideoMode(ds_get_width(ds), ds_get_height(ds), 0, flags);
99 fprintf(stderr, "Could not open SDL display\n");
102 if (!real_screen->pixels && (flags & SDL_HWSURFACE) && (flags & SDL_FULLSCREEN)) {
103 flags &= ~SDL_HWSURFACE;
107 if (!real_screen->pixels) {
108 fprintf(stderr, "Could not open SDL display\n");
115 /* generic keyboard conversion */
117 #include "sdl_keysym.h"
120 static kbd_layout_t *kbd_layout = NULL;
122 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
125 /* workaround for X11+SDL bug with AltGR */
126 keysym = ev->keysym.sym;
127 if (keysym == 0 && ev->keysym.scancode == 113)
129 /* For Japanese key '\' and '|' */
130 if (keysym == 92 && ev->keysym.scancode == 133) {
133 return keysym2scancode(kbd_layout, keysym);
136 /* specific keyboard conversions from scan codes */
140 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
142 return ev->keysym.scancode;
147 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
151 keycode = ev->keysym.scancode;
155 } else if (keycode < 97) {
156 keycode -= 8; /* just an offset */
157 } else if (keycode < 212) {
158 /* use conversion table */
159 keycode = _translate_keycode(keycode - 97);
168 static void reset_keys(void)
171 for(i = 0; i < 256; i++) {
172 if (modifiers_state[i]) {
174 kbd_put_keycode(0xe0);
175 kbd_put_keycode(i | 0x80);
176 modifiers_state[i] = 0;
181 static void sdl_process_key(SDL_KeyboardEvent *ev)
185 if (ev->keysym.sym == SDLK_PAUSE) {
188 if (ev->type == SDL_KEYUP)
190 kbd_put_keycode(0xe1);
191 kbd_put_keycode(0x1d | v);
192 kbd_put_keycode(0x45 | v);
197 keycode = sdl_keyevent_to_keycode_generic(ev);
199 keycode = sdl_keyevent_to_keycode(ev);
204 /* sent when leaving window: reset the modifiers state */
207 case 0x2a: /* Left Shift */
208 case 0x36: /* Right Shift */
209 case 0x1d: /* Left CTRL */
210 case 0x9d: /* Right CTRL */
211 case 0x38: /* Left ALT */
212 case 0xb8: /* Right ALT */
213 if (ev->type == SDL_KEYUP)
214 modifiers_state[keycode] = 0;
216 modifiers_state[keycode] = 1;
218 case 0x45: /* num lock */
219 case 0x3a: /* caps lock */
220 /* SDL does not send the key up event, so we generate it */
221 kbd_put_keycode(keycode);
222 kbd_put_keycode(keycode | 0x80);
226 /* now send the key code */
228 kbd_put_keycode(0xe0);
229 if (ev->type == SDL_KEYUP)
230 kbd_put_keycode(keycode | 0x80);
232 kbd_put_keycode(keycode & 0x7f);
235 static void sdl_update_caption(void)
238 const char *status = "";
241 status = " [Stopped]";
244 status = " - Press Ctrl-Alt to exit grab";
246 status = " - Press Ctrl-Alt-Shift to exit grab";
250 snprintf(buf, sizeof(buf), "QEMU (%s)%s", qemu_name, status);
252 snprintf(buf, sizeof(buf), "QEMU%s", status);
254 SDL_WM_SetCaption(buf, "QEMU");
257 static void sdl_hide_cursor(void)
262 if (kbd_mouse_is_absolute()) {
264 SDL_SetCursor(sdl_cursor_hidden);
270 static void sdl_show_cursor(void)
275 if (!kbd_mouse_is_absolute()) {
278 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
279 SDL_SetCursor(guest_sprite);
281 SDL_SetCursor(sdl_cursor_normal);
285 static void sdl_grab_start(void)
288 SDL_SetCursor(guest_sprite);
289 SDL_WarpMouse(guest_x, guest_y);
293 if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
295 sdl_update_caption();
300 static void sdl_grab_end(void)
302 SDL_WM_GrabInput(SDL_GRAB_OFF);
305 sdl_update_caption();
308 static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
312 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
313 buttons |= MOUSE_EVENT_LBUTTON;
314 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
315 buttons |= MOUSE_EVENT_RBUTTON;
316 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
317 buttons |= MOUSE_EVENT_MBUTTON;
319 if (kbd_mouse_is_absolute()) {
320 if (!absolute_enabled) {
325 absolute_enabled = 1;
328 dx = x * 0x7FFF / (width - 1);
329 dy = y * 0x7FFF / (height - 1);
330 } else if (absolute_enabled) {
332 absolute_enabled = 0;
333 } else if (guest_cursor) {
342 kbd_mouse_event(dx, dy, dz, buttons);
345 static void toggle_full_screen(DisplayState *ds)
347 gui_fullscreen = !gui_fullscreen;
349 if (gui_fullscreen) {
350 gui_saved_grab = gui_grab;
360 static void sdl_refresh(DisplayState *ds)
362 SDL_Event ev1, *ev = &ev1;
364 int buttonstate = SDL_GetMouseState(NULL, NULL);
366 if (last_vm_running != vm_running) {
367 last_vm_running = vm_running;
368 sdl_update_caption();
372 SDL_EnableUNICODE(!is_graphic_console());
374 while (SDL_PollEvent(ev)) {
376 case SDL_VIDEOEXPOSE:
377 sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
381 if (ev->type == SDL_KEYDOWN) {
383 mod_state = (SDL_GetModState() & gui_grab_code) ==
386 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
387 (gui_grab_code | KMOD_LSHIFT);
389 gui_key_modifier_pressed = mod_state;
390 if (gui_key_modifier_pressed) {
392 keycode = sdl_keyevent_to_keycode(&ev->key);
394 case 0x21: /* 'f' key on US keyboard */
395 toggle_full_screen(ds);
398 case 0x02 ... 0x0a: /* '1' to '9' keys */
399 /* Reset the modifiers sent to the current console */
401 console_select(keycode - 0x02);
402 if (!is_graphic_console()) {
403 /* display grab if going to a text console */
412 } else if (!is_graphic_console()) {
415 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
416 switch(ev->key.keysym.sym) {
417 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
418 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
419 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
420 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
421 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
422 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
423 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
424 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
428 switch(ev->key.keysym.sym) {
429 case SDLK_UP: keysym = QEMU_KEY_UP; break;
430 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
431 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
432 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
433 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
434 case SDLK_END: keysym = QEMU_KEY_END; break;
435 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
436 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
437 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;
438 case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
443 kbd_put_keysym(keysym);
444 } else if (ev->key.keysym.unicode != 0) {
445 kbd_put_keysym(ev->key.keysym.unicode);
448 } else if (ev->type == SDL_KEYUP) {
450 mod_state = (ev->key.keysym.mod & gui_grab_code);
452 mod_state = (ev->key.keysym.mod &
453 (gui_grab_code | KMOD_LSHIFT));
456 if (gui_key_modifier_pressed) {
457 gui_key_modifier_pressed = 0;
458 if (gui_keysym == 0) {
459 /* exit/enter grab if pressing Ctrl-Alt */
461 /* if the application is not active,
462 do not try to enter grab state. It
464 'SDL_WM_GrabInput(SDL_GRAB_ON)'
465 from blocking all the application
467 if (SDL_GetAppState() & SDL_APPACTIVE)
472 /* SDL does not send back all the
473 modifiers key, so we must correct it */
481 if (is_graphic_console() && !gui_keysym)
482 sdl_process_key(&ev->key);
486 qemu_system_shutdown_request();
488 case SDL_MOUSEMOTION:
489 if (gui_grab || kbd_mouse_is_absolute() ||
491 sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
492 ev->motion.x, ev->motion.y, ev->motion.state);
495 case SDL_MOUSEBUTTONDOWN:
496 case SDL_MOUSEBUTTONUP:
498 SDL_MouseButtonEvent *bev = &ev->button;
499 if (!gui_grab && !kbd_mouse_is_absolute()) {
500 if (ev->type == SDL_MOUSEBUTTONDOWN &&
501 (bev->button == SDL_BUTTON_LEFT)) {
502 /* start grabbing all events */
508 if (ev->type == SDL_MOUSEBUTTONDOWN) {
509 buttonstate |= SDL_BUTTON(bev->button);
511 buttonstate &= ~SDL_BUTTON(bev->button);
513 #ifdef SDL_BUTTON_WHEELUP
514 if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
516 } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
520 sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
524 case SDL_ACTIVEEVENT:
525 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
526 !ev->active.gain && !gui_fullscreen_initial_grab) {
529 if (ev->active.state & SDL_APPACTIVE) {
530 if (ev->active.gain) {
531 /* Back to default interval */
532 dcl->gui_timer_interval = 0;
535 /* Sleeping interval */
536 dcl->gui_timer_interval = 500;
547 static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
549 SDL_Rect dst = { x, y, w, h };
550 SDL_FillRect(real_screen, &dst, c);
553 static void sdl_mouse_warp(int x, int y, int on)
558 if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
559 SDL_SetCursor(guest_sprite);
565 guest_x = x, guest_y = y;
568 static void sdl_mouse_define(int width, int height, int bpp,
569 int hot_x, int hot_y,
570 uint8_t *image, uint8_t *mask)
572 uint8_t sprite[256], *line;
573 int x, y, dst, bypl, src = 0;
575 SDL_FreeCursor(guest_sprite);
577 memset(sprite, 0, 256);
578 bypl = ((width * bpp + 31) >> 5) << 2;
579 for (y = 0, dst = 0; y < height; y ++, image += bypl) {
581 for (x = 0; x < width; x ++, dst ++) {
584 src = *(line ++); src |= *(line ++); src |= *(line ++);
588 src = *(line ++); src |= *(line ++);
594 src = 0xf & (line[x >> 1] >> ((x & 1)) << 2);
597 src = 3 & (line[x >> 2] >> ((x & 3)) << 1);
600 src = 1 & (line[x >> 3] >> (x & 7));
604 sprite[dst >> 3] |= (1 << (~dst & 7)) & mask[dst >> 3];
607 guest_sprite = SDL_CreateCursor(sprite, mask, width, height, hot_x, hot_y);
610 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
611 SDL_SetCursor(guest_sprite);
614 static void sdl_cleanup(void)
617 SDL_FreeCursor(guest_sprite);
621 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
626 #if defined(__APPLE__)
627 /* always use generic keymaps */
628 if (!keyboard_layout)
629 keyboard_layout = "en-us";
631 if(keyboard_layout) {
632 kbd_layout = init_keyboard_layout(keyboard_layout);
640 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
641 if (SDL_Init (flags)) {
642 fprintf(stderr, "Could not initialize SDL - exiting\n");
646 dcl = qemu_mallocz(sizeof(DisplayChangeListener));
649 dcl->dpy_update = sdl_update;
650 dcl->dpy_resize = sdl_resize;
651 dcl->dpy_refresh = sdl_refresh;
652 dcl->dpy_setdata = sdl_setdata;
653 dcl->dpy_fill = sdl_fill;
654 ds->mouse_set = sdl_mouse_warp;
655 ds->cursor_define = sdl_mouse_define;
656 register_displaychangelistener(ds, dcl);
658 sdl_update_caption();
659 SDL_EnableKeyRepeat(250, 50);
662 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
663 sdl_cursor_normal = SDL_GetCursor();
668 gui_fullscreen_initial_grab = 1;