sdl: Do not grab mouse on mode switch while in background
[qemu.git] / ui / sdl.c
1 /*
2 * QEMU SDL display driver
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
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:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
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
22 * THE SOFTWARE.
23 */
24
25 /* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
26 #undef WIN32_LEAN_AND_MEAN
27
28 #include <SDL.h>
29 #include <SDL_syswm.h>
30
31 #include "qemu-common.h"
32 #include "console.h"
33 #include "sysemu.h"
34 #include "x_keymap.h"
35 #include "sdl_zoom.h"
36
37 static DisplayChangeListener *dcl;
38 static SDL_Surface *real_screen;
39 static SDL_Surface *guest_screen = NULL;
40 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
41 static int last_vm_running;
42 static bool gui_saved_scaling;
43 static int gui_saved_width;
44 static int gui_saved_height;
45 static int gui_saved_grab;
46 static int gui_fullscreen;
47 static int gui_noframe;
48 static int gui_key_modifier_pressed;
49 static int gui_keysym;
50 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
51 static uint8_t modifiers_state[256];
52 static SDL_Cursor *sdl_cursor_normal;
53 static SDL_Cursor *sdl_cursor_hidden;
54 static int absolute_enabled = 0;
55 static int guest_cursor = 0;
56 static int guest_x, guest_y;
57 static SDL_Cursor *guest_sprite = NULL;
58 static uint8_t allocator;
59 static SDL_PixelFormat host_format;
60 static int scaling_active = 0;
61 static Notifier mouse_mode_notifier;
62
63 static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
64 {
65 // printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
66 SDL_Rect rec;
67 rec.x = x;
68 rec.y = y;
69 rec.w = w;
70 rec.h = h;
71
72 if (guest_screen) {
73 if (!scaling_active) {
74 SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
75 } else {
76 if (sdl_zoom_blit(guest_screen, real_screen, SMOOTHING_ON, &rec) < 0) {
77 fprintf(stderr, "Zoom blit failed\n");
78 exit(1);
79 }
80 }
81 }
82 SDL_UpdateRect(real_screen, rec.x, rec.y, rec.w, rec.h);
83 }
84
85 static void sdl_setdata(DisplayState *ds)
86 {
87 if (guest_screen != NULL) SDL_FreeSurface(guest_screen);
88
89 guest_screen = SDL_CreateRGBSurfaceFrom(ds_get_data(ds), ds_get_width(ds), ds_get_height(ds),
90 ds_get_bits_per_pixel(ds), ds_get_linesize(ds),
91 ds->surface->pf.rmask, ds->surface->pf.gmask,
92 ds->surface->pf.bmask, ds->surface->pf.amask);
93 }
94
95 static void do_sdl_resize(int width, int height, int bpp)
96 {
97 int flags;
98
99 // printf("resizing to %d %d\n", w, h);
100
101 flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
102 if (gui_fullscreen) {
103 flags |= SDL_FULLSCREEN;
104 } else {
105 flags |= SDL_RESIZABLE;
106 }
107 if (gui_noframe)
108 flags |= SDL_NOFRAME;
109
110 real_screen = SDL_SetVideoMode(width, height, bpp, flags);
111 if (!real_screen) {
112 fprintf(stderr, "Could not open SDL display (%dx%dx%d): %s\n", width,
113 height, bpp, SDL_GetError());
114 exit(1);
115 }
116 }
117
118 static void sdl_resize(DisplayState *ds)
119 {
120 if (!allocator) {
121 if (!scaling_active)
122 do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
123 else if (real_screen->format->BitsPerPixel != ds_get_bits_per_pixel(ds))
124 do_sdl_resize(real_screen->w, real_screen->h, ds_get_bits_per_pixel(ds));
125 sdl_setdata(ds);
126 } else {
127 if (guest_screen != NULL) {
128 SDL_FreeSurface(guest_screen);
129 guest_screen = NULL;
130 }
131 }
132 }
133
134 static PixelFormat sdl_to_qemu_pixelformat(SDL_PixelFormat *sdl_pf)
135 {
136 PixelFormat qemu_pf;
137
138 memset(&qemu_pf, 0x00, sizeof(PixelFormat));
139
140 qemu_pf.bits_per_pixel = sdl_pf->BitsPerPixel;
141 qemu_pf.bytes_per_pixel = sdl_pf->BytesPerPixel;
142 qemu_pf.depth = (qemu_pf.bits_per_pixel) == 32 ? 24 : (qemu_pf.bits_per_pixel);
143
144 qemu_pf.rmask = sdl_pf->Rmask;
145 qemu_pf.gmask = sdl_pf->Gmask;
146 qemu_pf.bmask = sdl_pf->Bmask;
147 qemu_pf.amask = sdl_pf->Amask;
148
149 qemu_pf.rshift = sdl_pf->Rshift;
150 qemu_pf.gshift = sdl_pf->Gshift;
151 qemu_pf.bshift = sdl_pf->Bshift;
152 qemu_pf.ashift = sdl_pf->Ashift;
153
154 qemu_pf.rbits = 8 - sdl_pf->Rloss;
155 qemu_pf.gbits = 8 - sdl_pf->Gloss;
156 qemu_pf.bbits = 8 - sdl_pf->Bloss;
157 qemu_pf.abits = 8 - sdl_pf->Aloss;
158
159 qemu_pf.rmax = ((1 << qemu_pf.rbits) - 1);
160 qemu_pf.gmax = ((1 << qemu_pf.gbits) - 1);
161 qemu_pf.bmax = ((1 << qemu_pf.bbits) - 1);
162 qemu_pf.amax = ((1 << qemu_pf.abits) - 1);
163
164 return qemu_pf;
165 }
166
167 static DisplaySurface* sdl_create_displaysurface(int width, int height)
168 {
169 DisplaySurface *surface = (DisplaySurface*) g_malloc0(sizeof(DisplaySurface));
170 if (surface == NULL) {
171 fprintf(stderr, "sdl_create_displaysurface: malloc failed\n");
172 exit(1);
173 }
174
175 surface->width = width;
176 surface->height = height;
177
178 if (scaling_active) {
179 int linesize;
180 PixelFormat pf;
181 if (host_format.BytesPerPixel != 2 && host_format.BytesPerPixel != 4) {
182 linesize = width * 4;
183 pf = qemu_default_pixelformat(32);
184 } else {
185 linesize = width * host_format.BytesPerPixel;
186 pf = sdl_to_qemu_pixelformat(&host_format);
187 }
188 qemu_alloc_display(surface, width, height, linesize, pf, 0);
189 return surface;
190 }
191
192 if (host_format.BitsPerPixel == 16)
193 do_sdl_resize(width, height, 16);
194 else
195 do_sdl_resize(width, height, 32);
196
197 surface->pf = sdl_to_qemu_pixelformat(real_screen->format);
198 surface->linesize = real_screen->pitch;
199 surface->data = real_screen->pixels;
200
201 #ifdef HOST_WORDS_BIGENDIAN
202 surface->flags = QEMU_REALPIXELS_FLAG | QEMU_BIG_ENDIAN_FLAG;
203 #else
204 surface->flags = QEMU_REALPIXELS_FLAG;
205 #endif
206 allocator = 1;
207
208 return surface;
209 }
210
211 static void sdl_free_displaysurface(DisplaySurface *surface)
212 {
213 allocator = 0;
214 if (surface == NULL)
215 return;
216
217 if (surface->flags & QEMU_ALLOCATED_FLAG)
218 g_free(surface->data);
219 g_free(surface);
220 }
221
222 static DisplaySurface* sdl_resize_displaysurface(DisplaySurface *surface, int width, int height)
223 {
224 sdl_free_displaysurface(surface);
225 return sdl_create_displaysurface(width, height);
226 }
227
228 /* generic keyboard conversion */
229
230 #include "sdl_keysym.h"
231
232 static kbd_layout_t *kbd_layout = NULL;
233
234 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
235 {
236 int keysym;
237 /* workaround for X11+SDL bug with AltGR */
238 keysym = ev->keysym.sym;
239 if (keysym == 0 && ev->keysym.scancode == 113)
240 keysym = SDLK_MODE;
241 /* For Japanese key '\' and '|' */
242 if (keysym == 92 && ev->keysym.scancode == 133) {
243 keysym = 0xa5;
244 }
245 return keysym2scancode(kbd_layout, keysym) & SCANCODE_KEYMASK;
246 }
247
248 /* specific keyboard conversions from scan codes */
249
250 #if defined(_WIN32)
251
252 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
253 {
254 return ev->keysym.scancode;
255 }
256
257 #else
258
259 #if defined(SDL_VIDEO_DRIVER_X11)
260 #include <X11/XKBlib.h>
261
262 static int check_for_evdev(void)
263 {
264 SDL_SysWMinfo info;
265 XkbDescPtr desc = NULL;
266 int has_evdev = 0;
267 char *keycodes = NULL;
268
269 SDL_VERSION(&info.version);
270 if (!SDL_GetWMInfo(&info)) {
271 return 0;
272 }
273 desc = XkbGetKeyboard(info.info.x11.display,
274 XkbGBN_AllComponentsMask,
275 XkbUseCoreKbd);
276 if (desc && desc->names) {
277 keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
278 if (keycodes == NULL) {
279 fprintf(stderr, "could not lookup keycode name\n");
280 } else if (strstart(keycodes, "evdev", NULL)) {
281 has_evdev = 1;
282 } else if (!strstart(keycodes, "xfree86", NULL)) {
283 fprintf(stderr, "unknown keycodes `%s', please report to "
284 "qemu-devel@nongnu.org\n", keycodes);
285 }
286 }
287
288 if (desc) {
289 XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
290 }
291 if (keycodes) {
292 XFree(keycodes);
293 }
294 return has_evdev;
295 }
296 #else
297 static int check_for_evdev(void)
298 {
299 return 0;
300 }
301 #endif
302
303 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
304 {
305 int keycode;
306 static int has_evdev = -1;
307
308 if (has_evdev == -1)
309 has_evdev = check_for_evdev();
310
311 keycode = ev->keysym.scancode;
312
313 if (keycode < 9) {
314 keycode = 0;
315 } else if (keycode < 97) {
316 keycode -= 8; /* just an offset */
317 } else if (keycode < 158) {
318 /* use conversion table */
319 if (has_evdev)
320 keycode = translate_evdev_keycode(keycode - 97);
321 else
322 keycode = translate_xfree86_keycode(keycode - 97);
323 } else if (keycode == 208) { /* Hiragana_Katakana */
324 keycode = 0x70;
325 } else if (keycode == 211) { /* backslash */
326 keycode = 0x73;
327 } else {
328 keycode = 0;
329 }
330 return keycode;
331 }
332
333 #endif
334
335 static void reset_keys(void)
336 {
337 int i;
338 for(i = 0; i < 256; i++) {
339 if (modifiers_state[i]) {
340 if (i & SCANCODE_GREY)
341 kbd_put_keycode(SCANCODE_EMUL0);
342 kbd_put_keycode(i | SCANCODE_UP);
343 modifiers_state[i] = 0;
344 }
345 }
346 }
347
348 static void sdl_process_key(SDL_KeyboardEvent *ev)
349 {
350 int keycode, v;
351
352 if (ev->keysym.sym == SDLK_PAUSE) {
353 /* specific case */
354 v = 0;
355 if (ev->type == SDL_KEYUP)
356 v |= SCANCODE_UP;
357 kbd_put_keycode(0xe1);
358 kbd_put_keycode(0x1d | v);
359 kbd_put_keycode(0x45 | v);
360 return;
361 }
362
363 if (kbd_layout) {
364 keycode = sdl_keyevent_to_keycode_generic(ev);
365 } else {
366 keycode = sdl_keyevent_to_keycode(ev);
367 }
368
369 switch(keycode) {
370 case 0x00:
371 /* sent when leaving window: reset the modifiers state */
372 reset_keys();
373 return;
374 case 0x2a: /* Left Shift */
375 case 0x36: /* Right Shift */
376 case 0x1d: /* Left CTRL */
377 case 0x9d: /* Right CTRL */
378 case 0x38: /* Left ALT */
379 case 0xb8: /* Right ALT */
380 if (ev->type == SDL_KEYUP)
381 modifiers_state[keycode] = 0;
382 else
383 modifiers_state[keycode] = 1;
384 break;
385 #define QEMU_SDL_VERSION ((SDL_MAJOR_VERSION << 8) + SDL_MINOR_VERSION)
386 #if QEMU_SDL_VERSION < 0x102 || QEMU_SDL_VERSION == 0x102 && SDL_PATCHLEVEL < 14
387 /* SDL versions before 1.2.14 don't support key up for caps/num lock. */
388 case 0x45: /* num lock */
389 case 0x3a: /* caps lock */
390 /* SDL does not send the key up event, so we generate it */
391 kbd_put_keycode(keycode);
392 kbd_put_keycode(keycode | SCANCODE_UP);
393 return;
394 #endif
395 }
396
397 /* now send the key code */
398 if (keycode & SCANCODE_GREY)
399 kbd_put_keycode(SCANCODE_EMUL0);
400 if (ev->type == SDL_KEYUP)
401 kbd_put_keycode(keycode | SCANCODE_UP);
402 else
403 kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK);
404 }
405
406 static void sdl_update_caption(void)
407 {
408 char win_title[1024];
409 char icon_title[1024];
410 const char *status = "";
411
412 if (!runstate_is_running())
413 status = " [Stopped]";
414 else if (gui_grab) {
415 if (alt_grab)
416 status = " - Press Ctrl-Alt-Shift to exit mouse grab";
417 else if (ctrl_grab)
418 status = " - Press Right-Ctrl to exit mouse grab";
419 else
420 status = " - Press Ctrl-Alt to exit mouse grab";
421 }
422
423 if (qemu_name) {
424 snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status);
425 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
426 } else {
427 snprintf(win_title, sizeof(win_title), "QEMU%s", status);
428 snprintf(icon_title, sizeof(icon_title), "QEMU");
429 }
430
431 SDL_WM_SetCaption(win_title, icon_title);
432 }
433
434 static void sdl_hide_cursor(void)
435 {
436 if (!cursor_hide)
437 return;
438
439 if (kbd_mouse_is_absolute()) {
440 SDL_ShowCursor(1);
441 SDL_SetCursor(sdl_cursor_hidden);
442 } else {
443 SDL_ShowCursor(0);
444 }
445 }
446
447 static void sdl_show_cursor(void)
448 {
449 if (!cursor_hide)
450 return;
451
452 if (!kbd_mouse_is_absolute() || !is_graphic_console()) {
453 SDL_ShowCursor(1);
454 if (guest_cursor &&
455 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
456 SDL_SetCursor(guest_sprite);
457 else
458 SDL_SetCursor(sdl_cursor_normal);
459 }
460 }
461
462 static void sdl_grab_start(void)
463 {
464 if (guest_cursor) {
465 SDL_SetCursor(guest_sprite);
466 if (!kbd_mouse_is_absolute() && !absolute_enabled)
467 SDL_WarpMouse(guest_x, guest_y);
468 } else
469 sdl_hide_cursor();
470
471 if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
472 gui_grab = 1;
473 sdl_update_caption();
474 } else
475 sdl_show_cursor();
476 }
477
478 static void sdl_grab_end(void)
479 {
480 SDL_WM_GrabInput(SDL_GRAB_OFF);
481 gui_grab = 0;
482 sdl_show_cursor();
483 sdl_update_caption();
484 }
485
486 static void absolute_mouse_grab(void)
487 {
488 int mouse_x, mouse_y;
489
490 if (SDL_GetAppState() & SDL_APPINPUTFOCUS) {
491 SDL_GetMouseState(&mouse_x, &mouse_y);
492 if (mouse_x > 0 && mouse_x < real_screen->w - 1 &&
493 mouse_y > 0 && mouse_y < real_screen->h - 1) {
494 sdl_grab_start();
495 }
496 }
497 }
498
499 static void sdl_mouse_mode_change(Notifier *notify, void *data)
500 {
501 if (kbd_mouse_is_absolute()) {
502 if (!absolute_enabled) {
503 absolute_enabled = 1;
504 if (is_graphic_console()) {
505 absolute_mouse_grab();
506 }
507 }
508 } else if (absolute_enabled) {
509 if (!gui_fullscreen) {
510 sdl_grab_end();
511 }
512 absolute_enabled = 0;
513 }
514 }
515
516 static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
517 {
518 int buttons = 0;
519
520 if (state & SDL_BUTTON(SDL_BUTTON_LEFT)) {
521 buttons |= MOUSE_EVENT_LBUTTON;
522 }
523 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT)) {
524 buttons |= MOUSE_EVENT_RBUTTON;
525 }
526 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE)) {
527 buttons |= MOUSE_EVENT_MBUTTON;
528 }
529
530 if (kbd_mouse_is_absolute()) {
531 dx = x * 0x7FFF / (real_screen->w - 1);
532 dy = y * 0x7FFF / (real_screen->h - 1);
533 } else if (guest_cursor) {
534 x -= guest_x;
535 y -= guest_y;
536 guest_x += x;
537 guest_y += y;
538 dx = x;
539 dy = y;
540 }
541
542 kbd_mouse_event(dx, dy, dz, buttons);
543 }
544
545 static void sdl_scale(DisplayState *ds, int width, int height)
546 {
547 int bpp = real_screen->format->BitsPerPixel;
548
549 if (bpp != 16 && bpp != 32) {
550 bpp = 32;
551 }
552 do_sdl_resize(width, height, bpp);
553 scaling_active = 1;
554 if (!is_buffer_shared(ds->surface)) {
555 ds->surface = qemu_resize_displaysurface(ds, ds_get_width(ds),
556 ds_get_height(ds));
557 dpy_resize(ds);
558 }
559 }
560
561 static void toggle_full_screen(DisplayState *ds)
562 {
563 gui_fullscreen = !gui_fullscreen;
564 if (gui_fullscreen) {
565 gui_saved_width = real_screen->w;
566 gui_saved_height = real_screen->h;
567 gui_saved_scaling = scaling_active;
568
569 do_sdl_resize(ds_get_width(ds), ds_get_height(ds),
570 ds_get_bits_per_pixel(ds));
571 scaling_active = 0;
572
573 gui_saved_grab = gui_grab;
574 sdl_grab_start();
575 } else {
576 if (gui_saved_scaling) {
577 sdl_scale(ds, gui_saved_width, gui_saved_height);
578 } else {
579 do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
580 }
581 if (!gui_saved_grab || !is_graphic_console()) {
582 sdl_grab_end();
583 }
584 }
585 vga_hw_invalidate();
586 vga_hw_update();
587 }
588
589 static void handle_keydown(DisplayState *ds, SDL_Event *ev)
590 {
591 int mod_state;
592 int keycode;
593
594 if (alt_grab) {
595 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
596 (gui_grab_code | KMOD_LSHIFT);
597 } else if (ctrl_grab) {
598 mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL;
599 } else {
600 mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code;
601 }
602 gui_key_modifier_pressed = mod_state;
603
604 if (gui_key_modifier_pressed) {
605 keycode = sdl_keyevent_to_keycode(&ev->key);
606 switch (keycode) {
607 case 0x21: /* 'f' key on US keyboard */
608 toggle_full_screen(ds);
609 gui_keysym = 1;
610 break;
611 case 0x16: /* 'u' key on US keyboard */
612 if (scaling_active) {
613 scaling_active = 0;
614 sdl_resize(ds);
615 vga_hw_invalidate();
616 vga_hw_update();
617 }
618 gui_keysym = 1;
619 break;
620 case 0x02 ... 0x0a: /* '1' to '9' keys */
621 /* Reset the modifiers sent to the current console */
622 reset_keys();
623 console_select(keycode - 0x02);
624 gui_keysym = 1;
625 if (gui_fullscreen) {
626 break;
627 }
628 if (!is_graphic_console()) {
629 /* release grab if going to a text console */
630 if (gui_grab) {
631 sdl_grab_end();
632 } else if (absolute_enabled) {
633 sdl_show_cursor();
634 }
635 } else if (absolute_enabled) {
636 sdl_hide_cursor();
637 absolute_mouse_grab();
638 }
639 break;
640 case 0x1b: /* '+' */
641 case 0x35: /* '-' */
642 if (!gui_fullscreen) {
643 int width = MAX(real_screen->w + (keycode == 0x1b ? 50 : -50),
644 160);
645 int height = (ds_get_height(ds) * width) / ds_get_width(ds);
646
647 sdl_scale(ds, width, height);
648 vga_hw_invalidate();
649 vga_hw_update();
650 gui_keysym = 1;
651 }
652 default:
653 break;
654 }
655 } else if (!is_graphic_console()) {
656 int keysym = 0;
657
658 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
659 switch (ev->key.keysym.sym) {
660 case SDLK_UP:
661 keysym = QEMU_KEY_CTRL_UP;
662 break;
663 case SDLK_DOWN:
664 keysym = QEMU_KEY_CTRL_DOWN;
665 break;
666 case SDLK_LEFT:
667 keysym = QEMU_KEY_CTRL_LEFT;
668 break;
669 case SDLK_RIGHT:
670 keysym = QEMU_KEY_CTRL_RIGHT;
671 break;
672 case SDLK_HOME:
673 keysym = QEMU_KEY_CTRL_HOME;
674 break;
675 case SDLK_END:
676 keysym = QEMU_KEY_CTRL_END;
677 break;
678 case SDLK_PAGEUP:
679 keysym = QEMU_KEY_CTRL_PAGEUP;
680 break;
681 case SDLK_PAGEDOWN:
682 keysym = QEMU_KEY_CTRL_PAGEDOWN;
683 break;
684 default:
685 break;
686 }
687 } else {
688 switch (ev->key.keysym.sym) {
689 case SDLK_UP:
690 keysym = QEMU_KEY_UP;
691 break;
692 case SDLK_DOWN:
693 keysym = QEMU_KEY_DOWN;
694 break;
695 case SDLK_LEFT:
696 keysym = QEMU_KEY_LEFT;
697 break;
698 case SDLK_RIGHT:
699 keysym = QEMU_KEY_RIGHT;
700 break;
701 case SDLK_HOME:
702 keysym = QEMU_KEY_HOME;
703 break;
704 case SDLK_END:
705 keysym = QEMU_KEY_END;
706 break;
707 case SDLK_PAGEUP:
708 keysym = QEMU_KEY_PAGEUP;
709 break;
710 case SDLK_PAGEDOWN:
711 keysym = QEMU_KEY_PAGEDOWN;
712 break;
713 case SDLK_BACKSPACE:
714 keysym = QEMU_KEY_BACKSPACE;
715 break;
716 case SDLK_DELETE:
717 keysym = QEMU_KEY_DELETE;
718 break;
719 default:
720 break;
721 }
722 }
723 if (keysym) {
724 kbd_put_keysym(keysym);
725 } else if (ev->key.keysym.unicode != 0) {
726 kbd_put_keysym(ev->key.keysym.unicode);
727 }
728 }
729 if (is_graphic_console() && !gui_keysym) {
730 sdl_process_key(&ev->key);
731 }
732 }
733
734 static void handle_keyup(DisplayState *ds, SDL_Event *ev)
735 {
736 int mod_state;
737
738 if (!alt_grab) {
739 mod_state = (ev->key.keysym.mod & gui_grab_code);
740 } else {
741 mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT));
742 }
743 if (!mod_state && gui_key_modifier_pressed) {
744 gui_key_modifier_pressed = 0;
745 if (gui_keysym == 0) {
746 /* exit/enter grab if pressing Ctrl-Alt */
747 if (!gui_grab) {
748 /* If the application is not active, do not try to enter grab
749 * state. It prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from
750 * blocking all the application (SDL bug). */
751 if (is_graphic_console() &&
752 SDL_GetAppState() & SDL_APPACTIVE) {
753 sdl_grab_start();
754 }
755 } else if (!gui_fullscreen) {
756 sdl_grab_end();
757 }
758 /* SDL does not send back all the modifiers key, so we must
759 * correct it. */
760 reset_keys();
761 return;
762 }
763 gui_keysym = 0;
764 }
765 if (is_graphic_console() && !gui_keysym) {
766 sdl_process_key(&ev->key);
767 }
768 }
769
770 static void handle_mousemotion(DisplayState *ds, SDL_Event *ev)
771 {
772 int max_x, max_y;
773
774 if (is_graphic_console() &&
775 (kbd_mouse_is_absolute() || absolute_enabled)) {
776 max_x = real_screen->w - 1;
777 max_y = real_screen->h - 1;
778 if (gui_grab && (ev->motion.x == 0 || ev->motion.y == 0 ||
779 ev->motion.x == max_x || ev->motion.y == max_y)) {
780 sdl_grab_end();
781 }
782 if (!gui_grab && SDL_GetAppState() & SDL_APPINPUTFOCUS &&
783 (ev->motion.x > 0 && ev->motion.x < max_x &&
784 ev->motion.y > 0 && ev->motion.y < max_y)) {
785 sdl_grab_start();
786 }
787 }
788 if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
789 sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
790 ev->motion.x, ev->motion.y, ev->motion.state);
791 }
792 }
793
794 static void handle_mousebutton(DisplayState *ds, SDL_Event *ev)
795 {
796 int buttonstate = SDL_GetMouseState(NULL, NULL);
797 SDL_MouseButtonEvent *bev;
798 int dz;
799
800 if (!is_graphic_console()) {
801 return;
802 }
803
804 bev = &ev->button;
805 if (!gui_grab && !kbd_mouse_is_absolute()) {
806 if (ev->type == SDL_MOUSEBUTTONDOWN &&
807 (bev->button == SDL_BUTTON_LEFT)) {
808 /* start grabbing all events */
809 sdl_grab_start();
810 }
811 } else {
812 dz = 0;
813 if (ev->type == SDL_MOUSEBUTTONDOWN) {
814 buttonstate |= SDL_BUTTON(bev->button);
815 } else {
816 buttonstate &= ~SDL_BUTTON(bev->button);
817 }
818 #ifdef SDL_BUTTON_WHEELUP
819 if (bev->button == SDL_BUTTON_WHEELUP &&
820 ev->type == SDL_MOUSEBUTTONDOWN) {
821 dz = -1;
822 } else if (bev->button == SDL_BUTTON_WHEELDOWN &&
823 ev->type == SDL_MOUSEBUTTONDOWN) {
824 dz = 1;
825 }
826 #endif
827 sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
828 }
829 }
830
831 static void handle_activation(DisplayState *ds, SDL_Event *ev)
832 {
833 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
834 !ev->active.gain && !gui_fullscreen) {
835 sdl_grab_end();
836 }
837 if (!gui_grab && ev->active.gain && is_graphic_console() &&
838 (kbd_mouse_is_absolute() || absolute_enabled)) {
839 absolute_mouse_grab();
840 }
841 if (ev->active.state & SDL_APPACTIVE) {
842 if (ev->active.gain) {
843 /* Back to default interval */
844 dcl->gui_timer_interval = 0;
845 dcl->idle = 0;
846 } else {
847 /* Sleeping interval */
848 dcl->gui_timer_interval = 500;
849 dcl->idle = 1;
850 }
851 }
852 }
853
854 static void sdl_refresh(DisplayState *ds)
855 {
856 SDL_Event ev1, *ev = &ev1;
857
858 if (last_vm_running != runstate_is_running()) {
859 last_vm_running = runstate_is_running();
860 sdl_update_caption();
861 }
862
863 vga_hw_update();
864 SDL_EnableUNICODE(!is_graphic_console());
865
866 while (SDL_PollEvent(ev)) {
867 switch (ev->type) {
868 case SDL_VIDEOEXPOSE:
869 sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
870 break;
871 case SDL_KEYDOWN:
872 handle_keydown(ds, ev);
873 break;
874 case SDL_KEYUP:
875 handle_keyup(ds, ev);
876 break;
877 case SDL_QUIT:
878 if (!no_quit) {
879 no_shutdown = 0;
880 qemu_system_shutdown_request();
881 }
882 break;
883 case SDL_MOUSEMOTION:
884 handle_mousemotion(ds, ev);
885 break;
886 case SDL_MOUSEBUTTONDOWN:
887 case SDL_MOUSEBUTTONUP:
888 handle_mousebutton(ds, ev);
889 break;
890 case SDL_ACTIVEEVENT:
891 handle_activation(ds, ev);
892 break;
893 case SDL_VIDEORESIZE:
894 sdl_scale(ds, ev->resize.w, ev->resize.h);
895 vga_hw_invalidate();
896 vga_hw_update();
897 break;
898 default:
899 break;
900 }
901 }
902 }
903
904 static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
905 {
906 SDL_Rect dst = { x, y, w, h };
907 SDL_FillRect(real_screen, &dst, c);
908 }
909
910 static void sdl_mouse_warp(int x, int y, int on)
911 {
912 if (on) {
913 if (!guest_cursor)
914 sdl_show_cursor();
915 if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
916 SDL_SetCursor(guest_sprite);
917 if (!kbd_mouse_is_absolute() && !absolute_enabled)
918 SDL_WarpMouse(x, y);
919 }
920 } else if (gui_grab)
921 sdl_hide_cursor();
922 guest_cursor = on;
923 guest_x = x, guest_y = y;
924 }
925
926 static void sdl_mouse_define(QEMUCursor *c)
927 {
928 uint8_t *image, *mask;
929 int bpl;
930
931 if (guest_sprite)
932 SDL_FreeCursor(guest_sprite);
933
934 bpl = cursor_get_mono_bpl(c);
935 image = g_malloc0(bpl * c->height);
936 mask = g_malloc0(bpl * c->height);
937 cursor_get_mono_image(c, 0x000000, image);
938 cursor_get_mono_mask(c, 0, mask);
939 guest_sprite = SDL_CreateCursor(image, mask, c->width, c->height,
940 c->hot_x, c->hot_y);
941 g_free(image);
942 g_free(mask);
943
944 if (guest_cursor &&
945 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
946 SDL_SetCursor(guest_sprite);
947 }
948
949 static void sdl_cleanup(void)
950 {
951 if (guest_sprite)
952 SDL_FreeCursor(guest_sprite);
953 SDL_QuitSubSystem(SDL_INIT_VIDEO);
954 }
955
956 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
957 {
958 int flags;
959 uint8_t data = 0;
960 DisplayAllocator *da;
961 const SDL_VideoInfo *vi;
962 char *filename;
963
964 #if defined(__APPLE__)
965 /* always use generic keymaps */
966 if (!keyboard_layout)
967 keyboard_layout = "en-us";
968 #endif
969 if(keyboard_layout) {
970 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
971 if (!kbd_layout)
972 exit(1);
973 }
974
975 if (no_frame)
976 gui_noframe = 1;
977
978 if (!full_screen) {
979 setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 0);
980 }
981 #ifdef __linux__
982 /* on Linux, SDL may use fbcon|directfb|svgalib when run without
983 * accessible $DISPLAY to open X11 window. This is often the case
984 * when qemu is run using sudo. But in this case, and when actually
985 * run in X11 environment, SDL fights with X11 for the video card,
986 * making current display unavailable, often until reboot.
987 * So make x11 the default SDL video driver if this variable is unset.
988 * This is a bit hackish but saves us from bigger problem.
989 * Maybe it's a good idea to fix this in SDL instead.
990 */
991 setenv("SDL_VIDEODRIVER", "x11", 0);
992 #endif
993
994 /* Enable normal up/down events for Caps-Lock and Num-Lock keys.
995 * This requires SDL >= 1.2.14. */
996 setenv("SDL_DISABLE_LOCK_KEYS", "1", 1);
997
998 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
999 if (SDL_Init (flags)) {
1000 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
1001 SDL_GetError());
1002 exit(1);
1003 }
1004 vi = SDL_GetVideoInfo();
1005 host_format = *(vi->vfmt);
1006
1007 /* Load a 32x32x4 image. White pixels are transparent. */
1008 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp");
1009 if (filename) {
1010 SDL_Surface *image = SDL_LoadBMP(filename);
1011 if (image) {
1012 uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255);
1013 SDL_SetColorKey(image, SDL_SRCCOLORKEY, colorkey);
1014 SDL_WM_SetIcon(image, NULL);
1015 }
1016 g_free(filename);
1017 }
1018
1019 if (full_screen) {
1020 gui_fullscreen = 1;
1021 sdl_grab_start();
1022 }
1023
1024 dcl = g_malloc0(sizeof(DisplayChangeListener));
1025 dcl->dpy_update = sdl_update;
1026 dcl->dpy_resize = sdl_resize;
1027 dcl->dpy_refresh = sdl_refresh;
1028 dcl->dpy_setdata = sdl_setdata;
1029 dcl->dpy_fill = sdl_fill;
1030 ds->mouse_set = sdl_mouse_warp;
1031 ds->cursor_define = sdl_mouse_define;
1032 register_displaychangelistener(ds, dcl);
1033
1034 da = g_malloc0(sizeof(DisplayAllocator));
1035 da->create_displaysurface = sdl_create_displaysurface;
1036 da->resize_displaysurface = sdl_resize_displaysurface;
1037 da->free_displaysurface = sdl_free_displaysurface;
1038 if (register_displayallocator(ds, da) == da) {
1039 dpy_resize(ds);
1040 }
1041
1042 mouse_mode_notifier.notify = sdl_mouse_mode_change;
1043 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
1044
1045 sdl_update_caption();
1046 SDL_EnableKeyRepeat(250, 50);
1047 gui_grab = 0;
1048
1049 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
1050 sdl_cursor_normal = SDL_GetCursor();
1051
1052 atexit(sdl_cleanup);
1053 }