hw/acpi: add support for i440fx 'snooping' root busses
[qemu/kevin.git] / ui / sdl.c
blob3be29101ed68ac2f154b2911d80f084c5120e428
1 /*
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
22 * THE SOFTWARE.
25 /* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
26 #undef WIN32_LEAN_AND_MEAN
28 #include <SDL.h>
29 #include <SDL_syswm.h>
31 #include "qemu-common.h"
32 #include "ui/console.h"
33 #include "ui/input.h"
34 #include "sysemu/sysemu.h"
35 #include "x_keymap.h"
36 #include "sdl_zoom.h"
38 static DisplayChangeListener *dcl;
39 static DisplaySurface *surface;
40 static SDL_Surface *real_screen;
41 static SDL_Surface *guest_screen = NULL;
42 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
43 static int last_vm_running;
44 static bool gui_saved_scaling;
45 static int gui_saved_width;
46 static int gui_saved_height;
47 static int gui_saved_grab;
48 static int gui_fullscreen;
49 static int gui_noframe;
50 static int gui_key_modifier_pressed;
51 static int gui_keysym;
52 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
53 static uint8_t modifiers_state[256];
54 static SDL_Cursor *sdl_cursor_normal;
55 static SDL_Cursor *sdl_cursor_hidden;
56 static int absolute_enabled = 0;
57 static int guest_cursor = 0;
58 static int guest_x, guest_y;
59 static SDL_Cursor *guest_sprite = NULL;
60 static SDL_PixelFormat host_format;
61 static int scaling_active = 0;
62 static Notifier mouse_mode_notifier;
64 #if 0
65 #define DEBUG_SDL
66 #endif
68 static void sdl_update(DisplayChangeListener *dcl,
69 int x, int y, int w, int h)
71 SDL_Rect rec;
72 rec.x = x;
73 rec.y = y;
74 rec.w = w;
75 rec.h = h;
77 #ifdef DEBUG_SDL
78 printf("SDL: Updating x=%d y=%d w=%d h=%d (scaling: %d)\n",
79 x, y, w, h, scaling_active);
80 #endif
82 if (guest_screen) {
83 if (!scaling_active) {
84 SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
85 } else {
86 if (sdl_zoom_blit(guest_screen, real_screen, SMOOTHING_ON, &rec) < 0) {
87 fprintf(stderr, "Zoom blit failed\n");
88 exit(1);
92 SDL_UpdateRect(real_screen, rec.x, rec.y, rec.w, rec.h);
95 static void do_sdl_resize(int width, int height, int bpp)
97 int flags;
98 SDL_Surface *tmp_screen;
100 #ifdef DEBUG_SDL
101 printf("SDL: Resizing to %dx%d bpp %d\n", width, height, bpp);
102 #endif
104 flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
105 if (gui_fullscreen) {
106 flags |= SDL_FULLSCREEN;
107 } else {
108 flags |= SDL_RESIZABLE;
110 if (gui_noframe)
111 flags |= SDL_NOFRAME;
113 tmp_screen = SDL_SetVideoMode(width, height, bpp, flags);
114 if (!real_screen) {
115 if (!tmp_screen) {
116 fprintf(stderr, "Could not open SDL display (%dx%dx%d): %s\n",
117 width, height, bpp, SDL_GetError());
118 exit(1);
120 } else {
122 * Revert to the previous video mode if the change of resizing or
123 * resolution failed.
125 if (!tmp_screen) {
126 fprintf(stderr, "Failed to set SDL display (%dx%dx%d): %s\n",
127 width, height, bpp, SDL_GetError());
128 return;
132 real_screen = tmp_screen;
135 static void sdl_switch(DisplayChangeListener *dcl,
136 DisplaySurface *new_surface)
138 PixelFormat pf;
140 /* temporary hack: allows to call sdl_switch to handle scaling changes */
141 if (new_surface) {
142 surface = new_surface;
144 pf = qemu_pixelformat_from_pixman(surface->format);
146 if (!scaling_active) {
147 do_sdl_resize(surface_width(surface), surface_height(surface), 0);
148 } else if (real_screen->format->BitsPerPixel !=
149 surface_bits_per_pixel(surface)) {
150 do_sdl_resize(real_screen->w, real_screen->h,
151 surface_bits_per_pixel(surface));
154 if (guest_screen != NULL) {
155 SDL_FreeSurface(guest_screen);
158 #ifdef DEBUG_SDL
159 printf("SDL: Creating surface with masks: %08x %08x %08x %08x\n",
160 pf.rmask, pf.gmask, pf.bmask, pf.amask);
161 #endif
163 guest_screen = SDL_CreateRGBSurfaceFrom
164 (surface_data(surface),
165 surface_width(surface), surface_height(surface),
166 surface_bits_per_pixel(surface), surface_stride(surface),
167 pf.rmask, pf.gmask,
168 pf.bmask, pf.amask);
171 static bool sdl_check_format(DisplayChangeListener *dcl,
172 pixman_format_code_t format)
175 * We let SDL convert for us a few more formats than,
176 * the native ones. Thes are the ones I have tested.
178 return (format == PIXMAN_x8r8g8b8 ||
179 format == PIXMAN_b8g8r8x8 ||
180 format == PIXMAN_x1r5g5b5 ||
181 format == PIXMAN_r5g6b5);
184 /* generic keyboard conversion */
186 #include "sdl_keysym.h"
188 static kbd_layout_t *kbd_layout = NULL;
190 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
192 int keysym;
193 /* workaround for X11+SDL bug with AltGR */
194 keysym = ev->keysym.sym;
195 if (keysym == 0 && ev->keysym.scancode == 113)
196 keysym = SDLK_MODE;
197 /* For Japanese key '\' and '|' */
198 if (keysym == 92 && ev->keysym.scancode == 133) {
199 keysym = 0xa5;
201 return keysym2scancode(kbd_layout, keysym) & SCANCODE_KEYMASK;
204 /* specific keyboard conversions from scan codes */
206 #if defined(_WIN32)
208 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
210 return ev->keysym.scancode;
213 #else
215 #if defined(SDL_VIDEO_DRIVER_X11)
216 #include <X11/XKBlib.h>
218 static int check_for_evdev(void)
220 SDL_SysWMinfo info;
221 XkbDescPtr desc = NULL;
222 int has_evdev = 0;
223 char *keycodes = NULL;
225 SDL_VERSION(&info.version);
226 if (!SDL_GetWMInfo(&info)) {
227 return 0;
229 desc = XkbGetKeyboard(info.info.x11.display,
230 XkbGBN_AllComponentsMask,
231 XkbUseCoreKbd);
232 if (desc && desc->names) {
233 keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
234 if (keycodes == NULL) {
235 fprintf(stderr, "could not lookup keycode name\n");
236 } else if (strstart(keycodes, "evdev", NULL)) {
237 has_evdev = 1;
238 } else if (!strstart(keycodes, "xfree86", NULL)) {
239 fprintf(stderr, "unknown keycodes `%s', please report to "
240 "qemu-devel@nongnu.org\n", keycodes);
244 if (desc) {
245 XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
247 if (keycodes) {
248 XFree(keycodes);
250 return has_evdev;
252 #else
253 static int check_for_evdev(void)
255 return 0;
257 #endif
259 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
261 int keycode;
262 static int has_evdev = -1;
264 if (has_evdev == -1)
265 has_evdev = check_for_evdev();
267 keycode = ev->keysym.scancode;
269 if (keycode < 9) {
270 keycode = 0;
271 } else if (keycode < 97) {
272 keycode -= 8; /* just an offset */
273 } else if (keycode < 158) {
274 /* use conversion table */
275 if (has_evdev)
276 keycode = translate_evdev_keycode(keycode - 97);
277 else
278 keycode = translate_xfree86_keycode(keycode - 97);
279 } else if (keycode == 208) { /* Hiragana_Katakana */
280 keycode = 0x70;
281 } else if (keycode == 211) { /* backslash */
282 keycode = 0x73;
283 } else {
284 keycode = 0;
286 return keycode;
289 #endif
291 static void reset_keys(void)
293 int i;
294 for(i = 0; i < 256; i++) {
295 if (modifiers_state[i]) {
296 qemu_input_event_send_key_number(dcl->con, i, false);
297 modifiers_state[i] = 0;
302 static void sdl_process_key(SDL_KeyboardEvent *ev)
304 int keycode;
306 if (ev->keysym.sym == SDLK_PAUSE) {
307 /* specific case */
308 qemu_input_event_send_key_qcode(dcl->con, Q_KEY_CODE_PAUSE,
309 ev->type == SDL_KEYDOWN);
310 return;
313 if (kbd_layout) {
314 keycode = sdl_keyevent_to_keycode_generic(ev);
315 } else {
316 keycode = sdl_keyevent_to_keycode(ev);
319 switch(keycode) {
320 case 0x00:
321 /* sent when leaving window: reset the modifiers state */
322 reset_keys();
323 return;
324 case 0x2a: /* Left Shift */
325 case 0x36: /* Right Shift */
326 case 0x1d: /* Left CTRL */
327 case 0x9d: /* Right CTRL */
328 case 0x38: /* Left ALT */
329 case 0xb8: /* Right ALT */
330 if (ev->type == SDL_KEYUP)
331 modifiers_state[keycode] = 0;
332 else
333 modifiers_state[keycode] = 1;
334 break;
335 #define QEMU_SDL_VERSION ((SDL_MAJOR_VERSION << 8) + SDL_MINOR_VERSION)
336 #if QEMU_SDL_VERSION < 0x102 || QEMU_SDL_VERSION == 0x102 && SDL_PATCHLEVEL < 14
337 /* SDL versions before 1.2.14 don't support key up for caps/num lock. */
338 case 0x45: /* num lock */
339 case 0x3a: /* caps lock */
340 /* SDL does not send the key up event, so we generate it */
341 qemu_input_event_send_key_number(dcl->con, keycode, true);
342 qemu_input_event_send_key_number(dcl->con, keycode, false);
343 return;
344 #endif
347 /* now send the key code */
348 qemu_input_event_send_key_number(dcl->con, keycode,
349 ev->type == SDL_KEYDOWN);
352 static void sdl_update_caption(void)
354 char win_title[1024];
355 char icon_title[1024];
356 const char *status = "";
358 if (!runstate_is_running())
359 status = " [Stopped]";
360 else if (gui_grab) {
361 if (alt_grab)
362 status = " - Press Ctrl-Alt-Shift to exit mouse grab";
363 else if (ctrl_grab)
364 status = " - Press Right-Ctrl to exit mouse grab";
365 else
366 status = " - Press Ctrl-Alt to exit mouse grab";
369 if (qemu_name) {
370 snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status);
371 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
372 } else {
373 snprintf(win_title, sizeof(win_title), "QEMU%s", status);
374 snprintf(icon_title, sizeof(icon_title), "QEMU");
377 SDL_WM_SetCaption(win_title, icon_title);
380 static void sdl_hide_cursor(void)
382 if (!cursor_hide)
383 return;
385 if (qemu_input_is_absolute()) {
386 SDL_ShowCursor(1);
387 SDL_SetCursor(sdl_cursor_hidden);
388 } else {
389 SDL_ShowCursor(0);
393 static void sdl_show_cursor(void)
395 if (!cursor_hide)
396 return;
398 if (!qemu_input_is_absolute() || !qemu_console_is_graphic(NULL)) {
399 SDL_ShowCursor(1);
400 if (guest_cursor &&
401 (gui_grab || qemu_input_is_absolute() || absolute_enabled))
402 SDL_SetCursor(guest_sprite);
403 else
404 SDL_SetCursor(sdl_cursor_normal);
408 static void sdl_grab_start(void)
411 * If the application is not active, do not try to enter grab state. This
412 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the
413 * application (SDL bug).
415 if (!(SDL_GetAppState() & SDL_APPINPUTFOCUS)) {
416 return;
418 if (guest_cursor) {
419 SDL_SetCursor(guest_sprite);
420 if (!qemu_input_is_absolute() && !absolute_enabled) {
421 SDL_WarpMouse(guest_x, guest_y);
423 } else
424 sdl_hide_cursor();
425 SDL_WM_GrabInput(SDL_GRAB_ON);
426 gui_grab = 1;
427 sdl_update_caption();
430 static void sdl_grab_end(void)
432 SDL_WM_GrabInput(SDL_GRAB_OFF);
433 gui_grab = 0;
434 sdl_show_cursor();
435 sdl_update_caption();
438 static void absolute_mouse_grab(void)
440 int mouse_x, mouse_y;
442 SDL_GetMouseState(&mouse_x, &mouse_y);
443 if (mouse_x > 0 && mouse_x < real_screen->w - 1 &&
444 mouse_y > 0 && mouse_y < real_screen->h - 1) {
445 sdl_grab_start();
449 static void sdl_mouse_mode_change(Notifier *notify, void *data)
451 if (qemu_input_is_absolute()) {
452 if (!absolute_enabled) {
453 absolute_enabled = 1;
454 if (qemu_console_is_graphic(NULL)) {
455 absolute_mouse_grab();
458 } else if (absolute_enabled) {
459 if (!gui_fullscreen) {
460 sdl_grab_end();
462 absolute_enabled = 0;
466 static void sdl_send_mouse_event(int dx, int dy, int x, int y, int state)
468 static uint32_t bmap[INPUT_BUTTON_MAX] = {
469 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT),
470 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE),
471 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT),
472 [INPUT_BUTTON_WHEEL_UP] = SDL_BUTTON(SDL_BUTTON_WHEELUP),
473 [INPUT_BUTTON_WHEEL_DOWN] = SDL_BUTTON(SDL_BUTTON_WHEELDOWN),
475 static uint32_t prev_state;
477 if (prev_state != state) {
478 qemu_input_update_buttons(dcl->con, bmap, prev_state, state);
479 prev_state = state;
482 if (qemu_input_is_absolute()) {
483 qemu_input_queue_abs(dcl->con, INPUT_AXIS_X, x,
484 real_screen->w);
485 qemu_input_queue_abs(dcl->con, INPUT_AXIS_Y, y,
486 real_screen->h);
487 } else {
488 if (guest_cursor) {
489 x -= guest_x;
490 y -= guest_y;
491 guest_x += x;
492 guest_y += y;
493 dx = x;
494 dy = y;
496 qemu_input_queue_rel(dcl->con, INPUT_AXIS_X, dx);
497 qemu_input_queue_rel(dcl->con, INPUT_AXIS_Y, dy);
499 qemu_input_event_sync();
502 static void sdl_scale(int width, int height)
504 int bpp = real_screen->format->BitsPerPixel;
506 #ifdef DEBUG_SDL
507 printf("SDL: Scaling to %dx%d bpp %d\n", width, height, bpp);
508 #endif
510 if (bpp != 16 && bpp != 32) {
511 bpp = 32;
513 do_sdl_resize(width, height, bpp);
514 scaling_active = 1;
517 static void toggle_full_screen(void)
519 int width = surface_width(surface);
520 int height = surface_height(surface);
521 int bpp = surface_bits_per_pixel(surface);
523 gui_fullscreen = !gui_fullscreen;
524 if (gui_fullscreen) {
525 gui_saved_width = real_screen->w;
526 gui_saved_height = real_screen->h;
527 gui_saved_scaling = scaling_active;
529 do_sdl_resize(width, height, bpp);
530 scaling_active = 0;
532 gui_saved_grab = gui_grab;
533 sdl_grab_start();
534 } else {
535 if (gui_saved_scaling) {
536 sdl_scale(gui_saved_width, gui_saved_height);
537 } else {
538 do_sdl_resize(width, height, 0);
540 if (!gui_saved_grab || !qemu_console_is_graphic(NULL)) {
541 sdl_grab_end();
544 graphic_hw_invalidate(NULL);
545 graphic_hw_update(NULL);
548 static void handle_keydown(SDL_Event *ev)
550 int mod_state;
551 int keycode;
553 if (alt_grab) {
554 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
555 (gui_grab_code | KMOD_LSHIFT);
556 } else if (ctrl_grab) {
557 mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL;
558 } else {
559 mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code;
561 gui_key_modifier_pressed = mod_state;
563 if (gui_key_modifier_pressed) {
564 keycode = sdl_keyevent_to_keycode(&ev->key);
565 switch (keycode) {
566 case 0x21: /* 'f' key on US keyboard */
567 toggle_full_screen();
568 gui_keysym = 1;
569 break;
570 case 0x16: /* 'u' key on US keyboard */
571 if (scaling_active) {
572 scaling_active = 0;
573 sdl_switch(dcl, NULL);
574 graphic_hw_invalidate(NULL);
575 graphic_hw_update(NULL);
577 gui_keysym = 1;
578 break;
579 case 0x02 ... 0x0a: /* '1' to '9' keys */
580 /* Reset the modifiers sent to the current console */
581 reset_keys();
582 console_select(keycode - 0x02);
583 gui_keysym = 1;
584 if (gui_fullscreen) {
585 break;
587 if (!qemu_console_is_graphic(NULL)) {
588 /* release grab if going to a text console */
589 if (gui_grab) {
590 sdl_grab_end();
591 } else if (absolute_enabled) {
592 sdl_show_cursor();
594 } else if (absolute_enabled) {
595 sdl_hide_cursor();
596 absolute_mouse_grab();
598 break;
599 case 0x1b: /* '+' */
600 case 0x35: /* '-' */
601 if (!gui_fullscreen) {
602 int width = MAX(real_screen->w + (keycode == 0x1b ? 50 : -50),
603 160);
604 int height = (surface_height(surface) * width) /
605 surface_width(surface);
607 sdl_scale(width, height);
608 graphic_hw_invalidate(NULL);
609 graphic_hw_update(NULL);
610 gui_keysym = 1;
612 default:
613 break;
615 } else if (!qemu_console_is_graphic(NULL)) {
616 int keysym = 0;
618 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
619 switch (ev->key.keysym.sym) {
620 case SDLK_UP:
621 keysym = QEMU_KEY_CTRL_UP;
622 break;
623 case SDLK_DOWN:
624 keysym = QEMU_KEY_CTRL_DOWN;
625 break;
626 case SDLK_LEFT:
627 keysym = QEMU_KEY_CTRL_LEFT;
628 break;
629 case SDLK_RIGHT:
630 keysym = QEMU_KEY_CTRL_RIGHT;
631 break;
632 case SDLK_HOME:
633 keysym = QEMU_KEY_CTRL_HOME;
634 break;
635 case SDLK_END:
636 keysym = QEMU_KEY_CTRL_END;
637 break;
638 case SDLK_PAGEUP:
639 keysym = QEMU_KEY_CTRL_PAGEUP;
640 break;
641 case SDLK_PAGEDOWN:
642 keysym = QEMU_KEY_CTRL_PAGEDOWN;
643 break;
644 default:
645 break;
647 } else {
648 switch (ev->key.keysym.sym) {
649 case SDLK_UP:
650 keysym = QEMU_KEY_UP;
651 break;
652 case SDLK_DOWN:
653 keysym = QEMU_KEY_DOWN;
654 break;
655 case SDLK_LEFT:
656 keysym = QEMU_KEY_LEFT;
657 break;
658 case SDLK_RIGHT:
659 keysym = QEMU_KEY_RIGHT;
660 break;
661 case SDLK_HOME:
662 keysym = QEMU_KEY_HOME;
663 break;
664 case SDLK_END:
665 keysym = QEMU_KEY_END;
666 break;
667 case SDLK_PAGEUP:
668 keysym = QEMU_KEY_PAGEUP;
669 break;
670 case SDLK_PAGEDOWN:
671 keysym = QEMU_KEY_PAGEDOWN;
672 break;
673 case SDLK_BACKSPACE:
674 keysym = QEMU_KEY_BACKSPACE;
675 break;
676 case SDLK_DELETE:
677 keysym = QEMU_KEY_DELETE;
678 break;
679 default:
680 break;
683 if (keysym) {
684 kbd_put_keysym(keysym);
685 } else if (ev->key.keysym.unicode != 0) {
686 kbd_put_keysym(ev->key.keysym.unicode);
689 if (qemu_console_is_graphic(NULL) && !gui_keysym) {
690 sdl_process_key(&ev->key);
694 static void handle_keyup(SDL_Event *ev)
696 int mod_state;
698 if (!alt_grab) {
699 mod_state = (ev->key.keysym.mod & gui_grab_code);
700 } else {
701 mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT));
703 if (!mod_state && gui_key_modifier_pressed) {
704 gui_key_modifier_pressed = 0;
705 if (gui_keysym == 0) {
706 /* exit/enter grab if pressing Ctrl-Alt */
707 if (!gui_grab) {
708 if (qemu_console_is_graphic(NULL)) {
709 sdl_grab_start();
711 } else if (!gui_fullscreen) {
712 sdl_grab_end();
714 /* SDL does not send back all the modifiers key, so we must
715 * correct it. */
716 reset_keys();
717 return;
719 gui_keysym = 0;
721 if (qemu_console_is_graphic(NULL) && !gui_keysym) {
722 sdl_process_key(&ev->key);
726 static void handle_mousemotion(SDL_Event *ev)
728 int max_x, max_y;
730 if (qemu_console_is_graphic(NULL) &&
731 (qemu_input_is_absolute() || absolute_enabled)) {
732 max_x = real_screen->w - 1;
733 max_y = real_screen->h - 1;
734 if (gui_grab && (ev->motion.x == 0 || ev->motion.y == 0 ||
735 ev->motion.x == max_x || ev->motion.y == max_y)) {
736 sdl_grab_end();
738 if (!gui_grab &&
739 (ev->motion.x > 0 && ev->motion.x < max_x &&
740 ev->motion.y > 0 && ev->motion.y < max_y)) {
741 sdl_grab_start();
744 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) {
745 sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel,
746 ev->motion.x, ev->motion.y, ev->motion.state);
750 static void handle_mousebutton(SDL_Event *ev)
752 int buttonstate = SDL_GetMouseState(NULL, NULL);
753 SDL_MouseButtonEvent *bev;
755 if (!qemu_console_is_graphic(NULL)) {
756 return;
759 bev = &ev->button;
760 if (!gui_grab && !qemu_input_is_absolute()) {
761 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) {
762 /* start grabbing all events */
763 sdl_grab_start();
765 } else {
766 if (ev->type == SDL_MOUSEBUTTONDOWN) {
767 buttonstate |= SDL_BUTTON(bev->button);
768 } else {
769 buttonstate &= ~SDL_BUTTON(bev->button);
771 sdl_send_mouse_event(0, 0, bev->x, bev->y, buttonstate);
775 static void handle_activation(SDL_Event *ev)
777 #ifdef _WIN32
778 /* Disable grab if the window no longer has the focus
779 * (Windows-only workaround) */
780 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
781 !ev->active.gain && !gui_fullscreen) {
782 sdl_grab_end();
784 #endif
785 if (!gui_grab && ev->active.gain && qemu_console_is_graphic(NULL) &&
786 (qemu_input_is_absolute() || absolute_enabled)) {
787 absolute_mouse_grab();
789 if (ev->active.state & SDL_APPACTIVE) {
790 if (ev->active.gain) {
791 /* Back to default interval */
792 update_displaychangelistener(dcl, GUI_REFRESH_INTERVAL_DEFAULT);
793 } else {
794 /* Sleeping interval. Not using the long default here as
795 * sdl_refresh does not only update the guest screen, but
796 * also checks for gui events. */
797 update_displaychangelistener(dcl, 500);
802 static void sdl_refresh(DisplayChangeListener *dcl)
804 SDL_Event ev1, *ev = &ev1;
806 if (last_vm_running != runstate_is_running()) {
807 last_vm_running = runstate_is_running();
808 sdl_update_caption();
811 graphic_hw_update(NULL);
812 SDL_EnableUNICODE(!qemu_console_is_graphic(NULL));
814 while (SDL_PollEvent(ev)) {
815 switch (ev->type) {
816 case SDL_VIDEOEXPOSE:
817 sdl_update(dcl, 0, 0, real_screen->w, real_screen->h);
818 break;
819 case SDL_KEYDOWN:
820 handle_keydown(ev);
821 break;
822 case SDL_KEYUP:
823 handle_keyup(ev);
824 break;
825 case SDL_QUIT:
826 if (!no_quit) {
827 no_shutdown = 0;
828 qemu_system_shutdown_request();
830 break;
831 case SDL_MOUSEMOTION:
832 handle_mousemotion(ev);
833 break;
834 case SDL_MOUSEBUTTONDOWN:
835 case SDL_MOUSEBUTTONUP:
836 handle_mousebutton(ev);
837 break;
838 case SDL_ACTIVEEVENT:
839 handle_activation(ev);
840 break;
841 case SDL_VIDEORESIZE:
842 sdl_scale(ev->resize.w, ev->resize.h);
843 graphic_hw_invalidate(NULL);
844 graphic_hw_update(NULL);
845 break;
846 default:
847 break;
852 static void sdl_mouse_warp(DisplayChangeListener *dcl,
853 int x, int y, int on)
855 if (on) {
856 if (!guest_cursor)
857 sdl_show_cursor();
858 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) {
859 SDL_SetCursor(guest_sprite);
860 if (!qemu_input_is_absolute() && !absolute_enabled) {
861 SDL_WarpMouse(x, y);
864 } else if (gui_grab)
865 sdl_hide_cursor();
866 guest_cursor = on;
867 guest_x = x, guest_y = y;
870 static void sdl_mouse_define(DisplayChangeListener *dcl,
871 QEMUCursor *c)
873 uint8_t *image, *mask;
874 int bpl;
876 if (guest_sprite)
877 SDL_FreeCursor(guest_sprite);
879 bpl = cursor_get_mono_bpl(c);
880 image = g_malloc0(bpl * c->height);
881 mask = g_malloc0(bpl * c->height);
882 cursor_get_mono_image(c, 0x000000, image);
883 cursor_get_mono_mask(c, 0, mask);
884 guest_sprite = SDL_CreateCursor(image, mask, c->width, c->height,
885 c->hot_x, c->hot_y);
886 g_free(image);
887 g_free(mask);
889 if (guest_cursor &&
890 (gui_grab || qemu_input_is_absolute() || absolute_enabled))
891 SDL_SetCursor(guest_sprite);
894 static void sdl_cleanup(void)
896 if (guest_sprite)
897 SDL_FreeCursor(guest_sprite);
898 SDL_QuitSubSystem(SDL_INIT_VIDEO);
901 static const DisplayChangeListenerOps dcl_ops = {
902 .dpy_name = "sdl",
903 .dpy_gfx_update = sdl_update,
904 .dpy_gfx_switch = sdl_switch,
905 .dpy_gfx_check_format = sdl_check_format,
906 .dpy_refresh = sdl_refresh,
907 .dpy_mouse_set = sdl_mouse_warp,
908 .dpy_cursor_define = sdl_mouse_define,
911 void sdl_display_early_init(int opengl)
913 if (opengl == 1 /* on */) {
914 fprintf(stderr,
915 "SDL1 display code has no opengl support.\n"
916 "Please recompile qemu with SDL2, using\n"
917 "./configure --enable-sdl --with-sdlabi=2.0\n");
921 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
923 int flags;
924 uint8_t data = 0;
925 const SDL_VideoInfo *vi;
926 char *filename;
928 #if defined(__APPLE__)
929 /* always use generic keymaps */
930 if (!keyboard_layout)
931 keyboard_layout = "en-us";
932 #endif
933 if(keyboard_layout) {
934 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
935 if (!kbd_layout)
936 exit(1);
939 if (no_frame)
940 gui_noframe = 1;
942 if (!full_screen) {
943 setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 0);
945 #ifdef __linux__
946 /* on Linux, SDL may use fbcon|directfb|svgalib when run without
947 * accessible $DISPLAY to open X11 window. This is often the case
948 * when qemu is run using sudo. But in this case, and when actually
949 * run in X11 environment, SDL fights with X11 for the video card,
950 * making current display unavailable, often until reboot.
951 * So make x11 the default SDL video driver if this variable is unset.
952 * This is a bit hackish but saves us from bigger problem.
953 * Maybe it's a good idea to fix this in SDL instead.
955 setenv("SDL_VIDEODRIVER", "x11", 0);
956 #endif
958 /* Enable normal up/down events for Caps-Lock and Num-Lock keys.
959 * This requires SDL >= 1.2.14. */
960 setenv("SDL_DISABLE_LOCK_KEYS", "1", 1);
962 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
963 if (SDL_Init (flags)) {
964 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
965 SDL_GetError());
966 exit(1);
968 vi = SDL_GetVideoInfo();
969 host_format = *(vi->vfmt);
971 /* Load a 32x32x4 image. White pixels are transparent. */
972 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp");
973 if (filename) {
974 SDL_Surface *image = SDL_LoadBMP(filename);
975 if (image) {
976 uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255);
977 SDL_SetColorKey(image, SDL_SRCCOLORKEY, colorkey);
978 SDL_WM_SetIcon(image, NULL);
980 g_free(filename);
983 if (full_screen) {
984 gui_fullscreen = 1;
985 sdl_grab_start();
988 dcl = g_malloc0(sizeof(DisplayChangeListener));
989 dcl->ops = &dcl_ops;
990 register_displaychangelistener(dcl);
992 mouse_mode_notifier.notify = sdl_mouse_mode_change;
993 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
995 sdl_update_caption();
996 SDL_EnableKeyRepeat(250, 50);
997 gui_grab = 0;
999 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
1000 sdl_cursor_normal = SDL_GetCursor();
1002 atexit(sdl_cleanup);