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
25 /* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
26 #undef WIN32_LEAN_AND_MEAN
29 #include <SDL_syswm.h>
31 #include "qemu-common.h"
32 #include "ui/console.h"
34 #include "sysemu/sysemu.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;
63 static int idle_counter;
65 #define SDL_REFRESH_INTERVAL_BUSY 10
66 #define SDL_MAX_IDLE_COUNT (2 * GUI_REFRESH_INTERVAL_DEFAULT \
67 / SDL_REFRESH_INTERVAL_BUSY + 1)
73 static void sdl_update(DisplayChangeListener *dcl,
74 int x, int y, int w, int h)
83 printf("SDL: Updating x=%d y=%d w=%d h=%d (scaling: %d)\n",
84 x, y, w, h, scaling_active);
88 if (!scaling_active) {
89 SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
91 if (sdl_zoom_blit(guest_screen, real_screen, SMOOTHING_ON, &rec) < 0) {
92 fprintf(stderr, "Zoom blit failed\n");
97 SDL_UpdateRect(real_screen, rec.x, rec.y, rec.w, rec.h);
100 static void do_sdl_resize(int width, int height, int bpp)
103 SDL_Surface *tmp_screen;
106 printf("SDL: Resizing to %dx%d bpp %d\n", width, height, bpp);
109 flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
110 if (gui_fullscreen) {
111 flags |= SDL_FULLSCREEN;
113 flags |= SDL_RESIZABLE;
116 flags |= SDL_NOFRAME;
118 tmp_screen = SDL_SetVideoMode(width, height, bpp, flags);
121 fprintf(stderr, "Could not open SDL display (%dx%dx%d): %s\n",
122 width, height, bpp, SDL_GetError());
127 * Revert to the previous video mode if the change of resizing or
131 fprintf(stderr, "Failed to set SDL display (%dx%dx%d): %s\n",
132 width, height, bpp, SDL_GetError());
137 real_screen = tmp_screen;
140 static void sdl_switch(DisplayChangeListener *dcl,
141 DisplaySurface *new_surface)
145 /* temporary hack: allows to call sdl_switch to handle scaling changes */
147 surface = new_surface;
149 pf = qemu_pixelformat_from_pixman(surface->format);
151 if (!scaling_active) {
152 do_sdl_resize(surface_width(surface), surface_height(surface), 0);
153 } else if (real_screen->format->BitsPerPixel !=
154 surface_bits_per_pixel(surface)) {
155 do_sdl_resize(real_screen->w, real_screen->h,
156 surface_bits_per_pixel(surface));
159 if (guest_screen != NULL) {
160 SDL_FreeSurface(guest_screen);
164 printf("SDL: Creating surface with masks: %08x %08x %08x %08x\n",
165 pf.rmask, pf.gmask, pf.bmask, pf.amask);
168 guest_screen = SDL_CreateRGBSurfaceFrom
169 (surface_data(surface),
170 surface_width(surface), surface_height(surface),
171 surface_bits_per_pixel(surface), surface_stride(surface),
176 static bool sdl_check_format(DisplayChangeListener *dcl,
177 pixman_format_code_t format)
180 * We let SDL convert for us a few more formats than,
181 * the native ones. Thes are the ones I have tested.
183 return (format == PIXMAN_x8r8g8b8 ||
184 format == PIXMAN_b8g8r8x8 ||
185 format == PIXMAN_x1r5g5b5 ||
186 format == PIXMAN_r5g6b5);
189 /* generic keyboard conversion */
191 #include "sdl_keysym.h"
193 static kbd_layout_t *kbd_layout = NULL;
195 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
198 /* workaround for X11+SDL bug with AltGR */
199 keysym = ev->keysym.sym;
200 if (keysym == 0 && ev->keysym.scancode == 113)
202 /* For Japanese key '\' and '|' */
203 if (keysym == 92 && ev->keysym.scancode == 133) {
206 return keysym2scancode(kbd_layout, keysym) & SCANCODE_KEYMASK;
209 /* specific keyboard conversions from scan codes */
213 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
215 return ev->keysym.scancode;
220 #if defined(SDL_VIDEO_DRIVER_X11)
221 #include <X11/XKBlib.h>
223 static int check_for_evdev(void)
226 XkbDescPtr desc = NULL;
228 char *keycodes = NULL;
230 SDL_VERSION(&info.version);
231 if (!SDL_GetWMInfo(&info)) {
234 desc = XkbGetKeyboard(info.info.x11.display,
235 XkbGBN_AllComponentsMask,
237 if (desc && desc->names) {
238 keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
239 if (keycodes == NULL) {
240 fprintf(stderr, "could not lookup keycode name\n");
241 } else if (strstart(keycodes, "evdev", NULL)) {
243 } else if (!strstart(keycodes, "xfree86", NULL)) {
244 fprintf(stderr, "unknown keycodes `%s', please report to "
250 XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
258 static int check_for_evdev(void)
264 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
267 static int has_evdev = -1;
270 has_evdev = check_for_evdev();
272 keycode = ev->keysym.scancode;
276 } else if (keycode < 97) {
277 keycode -= 8; /* just an offset */
278 } else if (keycode < 158) {
279 /* use conversion table */
281 keycode = translate_evdev_keycode(keycode - 97);
283 keycode = translate_xfree86_keycode(keycode - 97);
284 } else if (keycode == 208) { /* Hiragana_Katakana */
286 } else if (keycode == 211) { /* backslash */
296 static void reset_keys(void)
299 for(i = 0; i < 256; i++) {
300 if (modifiers_state[i]) {
301 qemu_input_event_send_key_number(dcl->con, i, false);
302 modifiers_state[i] = 0;
307 static void sdl_process_key(SDL_KeyboardEvent *ev)
311 if (ev->keysym.sym == SDLK_PAUSE) {
313 qemu_input_event_send_key_qcode(dcl->con, Q_KEY_CODE_PAUSE,
314 ev->type == SDL_KEYDOWN);
319 keycode = sdl_keyevent_to_keycode_generic(ev);
321 keycode = sdl_keyevent_to_keycode(ev);
326 /* sent when leaving window: reset the modifiers state */
329 case 0x2a: /* Left Shift */
330 case 0x36: /* Right Shift */
331 case 0x1d: /* Left CTRL */
332 case 0x9d: /* Right CTRL */
333 case 0x38: /* Left ALT */
334 case 0xb8: /* Right ALT */
335 if (ev->type == SDL_KEYUP)
336 modifiers_state[keycode] = 0;
338 modifiers_state[keycode] = 1;
340 #define QEMU_SDL_VERSION ((SDL_MAJOR_VERSION << 8) + SDL_MINOR_VERSION)
341 #if QEMU_SDL_VERSION < 0x102 || QEMU_SDL_VERSION == 0x102 && SDL_PATCHLEVEL < 14
342 /* SDL versions before 1.2.14 don't support key up for caps/num lock. */
343 case 0x45: /* num lock */
344 case 0x3a: /* caps lock */
345 /* SDL does not send the key up event, so we generate it */
346 qemu_input_event_send_key_number(dcl->con, keycode, true);
347 qemu_input_event_send_key_number(dcl->con, keycode, false);
352 /* now send the key code */
353 qemu_input_event_send_key_number(dcl->con, keycode,
354 ev->type == SDL_KEYDOWN);
357 static void sdl_update_caption(void)
359 char win_title[1024];
360 char icon_title[1024];
361 const char *status = "";
363 if (!runstate_is_running())
364 status = " [Stopped]";
367 status = " - Press Ctrl-Alt-Shift to exit mouse grab";
369 status = " - Press Right-Ctrl to exit mouse grab";
371 status = " - Press Ctrl-Alt to exit mouse grab";
375 snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status);
376 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
378 snprintf(win_title, sizeof(win_title), "QEMU%s", status);
379 snprintf(icon_title, sizeof(icon_title), "QEMU");
382 SDL_WM_SetCaption(win_title, icon_title);
385 static void sdl_hide_cursor(void)
390 if (qemu_input_is_absolute()) {
392 SDL_SetCursor(sdl_cursor_hidden);
398 static void sdl_show_cursor(void)
403 if (!qemu_input_is_absolute() || !qemu_console_is_graphic(NULL)) {
406 (gui_grab || qemu_input_is_absolute() || absolute_enabled))
407 SDL_SetCursor(guest_sprite);
409 SDL_SetCursor(sdl_cursor_normal);
413 static void sdl_grab_start(void)
416 * If the application is not active, do not try to enter grab state. This
417 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the
418 * application (SDL bug).
420 if (!(SDL_GetAppState() & SDL_APPINPUTFOCUS)) {
424 SDL_SetCursor(guest_sprite);
425 if (!qemu_input_is_absolute() && !absolute_enabled) {
426 SDL_WarpMouse(guest_x, guest_y);
430 SDL_WM_GrabInput(SDL_GRAB_ON);
432 sdl_update_caption();
435 static void sdl_grab_end(void)
437 SDL_WM_GrabInput(SDL_GRAB_OFF);
440 sdl_update_caption();
443 static void absolute_mouse_grab(void)
445 int mouse_x, mouse_y;
447 SDL_GetMouseState(&mouse_x, &mouse_y);
448 if (mouse_x > 0 && mouse_x < real_screen->w - 1 &&
449 mouse_y > 0 && mouse_y < real_screen->h - 1) {
454 static void sdl_mouse_mode_change(Notifier *notify, void *data)
456 if (qemu_input_is_absolute()) {
457 if (!absolute_enabled) {
458 absolute_enabled = 1;
459 if (qemu_console_is_graphic(NULL)) {
460 absolute_mouse_grab();
463 } else if (absolute_enabled) {
464 if (!gui_fullscreen) {
467 absolute_enabled = 0;
471 static void sdl_send_mouse_event(int dx, int dy, int x, int y, int state)
473 static uint32_t bmap[INPUT_BUTTON__MAX] = {
474 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT),
475 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE),
476 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT),
477 [INPUT_BUTTON_WHEELUP] = SDL_BUTTON(SDL_BUTTON_WHEELUP),
478 [INPUT_BUTTON_WHEELDOWN] = SDL_BUTTON(SDL_BUTTON_WHEELDOWN),
480 static uint32_t prev_state;
482 if (prev_state != state) {
483 qemu_input_update_buttons(dcl->con, bmap, prev_state, state);
487 if (qemu_input_is_absolute()) {
488 qemu_input_queue_abs(dcl->con, INPUT_AXIS_X, x,
490 qemu_input_queue_abs(dcl->con, INPUT_AXIS_Y, y,
501 qemu_input_queue_rel(dcl->con, INPUT_AXIS_X, dx);
502 qemu_input_queue_rel(dcl->con, INPUT_AXIS_Y, dy);
504 qemu_input_event_sync();
507 static void sdl_scale(int width, int height)
509 int bpp = real_screen->format->BitsPerPixel;
512 printf("SDL: Scaling to %dx%d bpp %d\n", width, height, bpp);
515 if (bpp != 16 && bpp != 32) {
518 do_sdl_resize(width, height, bpp);
522 static void toggle_full_screen(void)
524 int width = surface_width(surface);
525 int height = surface_height(surface);
526 int bpp = surface_bits_per_pixel(surface);
528 gui_fullscreen = !gui_fullscreen;
529 if (gui_fullscreen) {
530 gui_saved_width = real_screen->w;
531 gui_saved_height = real_screen->h;
532 gui_saved_scaling = scaling_active;
534 do_sdl_resize(width, height, bpp);
537 gui_saved_grab = gui_grab;
540 if (gui_saved_scaling) {
541 sdl_scale(gui_saved_width, gui_saved_height);
543 do_sdl_resize(width, height, 0);
545 if (!gui_saved_grab || !qemu_console_is_graphic(NULL)) {
549 graphic_hw_invalidate(NULL);
550 graphic_hw_update(NULL);
553 static void handle_keydown(SDL_Event *ev)
559 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
560 (gui_grab_code | KMOD_LSHIFT);
561 } else if (ctrl_grab) {
562 mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL;
564 mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code;
566 gui_key_modifier_pressed = mod_state;
568 if (gui_key_modifier_pressed) {
569 keycode = sdl_keyevent_to_keycode(&ev->key);
571 case 0x21: /* 'f' key on US keyboard */
572 toggle_full_screen();
575 case 0x16: /* 'u' key on US keyboard */
576 if (scaling_active) {
578 sdl_switch(dcl, NULL);
579 graphic_hw_invalidate(NULL);
580 graphic_hw_update(NULL);
584 case 0x02 ... 0x0a: /* '1' to '9' keys */
585 /* Reset the modifiers sent to the current console */
587 console_select(keycode - 0x02);
589 if (gui_fullscreen) {
592 if (!qemu_console_is_graphic(NULL)) {
593 /* release grab if going to a text console */
596 } else if (absolute_enabled) {
599 } else if (absolute_enabled) {
601 absolute_mouse_grab();
606 if (!gui_fullscreen) {
607 int width = MAX(real_screen->w + (keycode == 0x1b ? 50 : -50),
609 int height = (surface_height(surface) * width) /
610 surface_width(surface);
612 sdl_scale(width, height);
613 graphic_hw_invalidate(NULL);
614 graphic_hw_update(NULL);
620 } else if (!qemu_console_is_graphic(NULL)) {
623 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
624 switch (ev->key.keysym.sym) {
626 keysym = QEMU_KEY_CTRL_UP;
629 keysym = QEMU_KEY_CTRL_DOWN;
632 keysym = QEMU_KEY_CTRL_LEFT;
635 keysym = QEMU_KEY_CTRL_RIGHT;
638 keysym = QEMU_KEY_CTRL_HOME;
641 keysym = QEMU_KEY_CTRL_END;
644 keysym = QEMU_KEY_CTRL_PAGEUP;
647 keysym = QEMU_KEY_CTRL_PAGEDOWN;
653 switch (ev->key.keysym.sym) {
655 keysym = QEMU_KEY_UP;
658 keysym = QEMU_KEY_DOWN;
661 keysym = QEMU_KEY_LEFT;
664 keysym = QEMU_KEY_RIGHT;
667 keysym = QEMU_KEY_HOME;
670 keysym = QEMU_KEY_END;
673 keysym = QEMU_KEY_PAGEUP;
676 keysym = QEMU_KEY_PAGEDOWN;
679 keysym = QEMU_KEY_BACKSPACE;
682 keysym = QEMU_KEY_DELETE;
689 kbd_put_keysym(keysym);
690 } else if (ev->key.keysym.unicode != 0) {
691 kbd_put_keysym(ev->key.keysym.unicode);
694 if (qemu_console_is_graphic(NULL) && !gui_keysym) {
695 sdl_process_key(&ev->key);
699 static void handle_keyup(SDL_Event *ev)
704 mod_state = (ev->key.keysym.mod & gui_grab_code);
706 mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT));
708 if (!mod_state && gui_key_modifier_pressed) {
709 gui_key_modifier_pressed = 0;
710 if (gui_keysym == 0) {
711 /* exit/enter grab if pressing Ctrl-Alt */
713 if (qemu_console_is_graphic(NULL)) {
716 } else if (!gui_fullscreen) {
719 /* SDL does not send back all the modifiers key, so we must
726 if (qemu_console_is_graphic(NULL) && !gui_keysym) {
727 sdl_process_key(&ev->key);
731 static void handle_mousemotion(SDL_Event *ev)
735 if (qemu_console_is_graphic(NULL) &&
736 (qemu_input_is_absolute() || absolute_enabled)) {
737 max_x = real_screen->w - 1;
738 max_y = real_screen->h - 1;
739 if (gui_grab && (ev->motion.x == 0 || ev->motion.y == 0 ||
740 ev->motion.x == max_x || ev->motion.y == max_y)) {
744 (ev->motion.x > 0 && ev->motion.x < max_x &&
745 ev->motion.y > 0 && ev->motion.y < max_y)) {
749 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) {
750 sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel,
751 ev->motion.x, ev->motion.y, ev->motion.state);
755 static void handle_mousebutton(SDL_Event *ev)
757 int buttonstate = SDL_GetMouseState(NULL, NULL);
758 SDL_MouseButtonEvent *bev;
760 if (!qemu_console_is_graphic(NULL)) {
765 if (!gui_grab && !qemu_input_is_absolute()) {
766 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) {
767 /* start grabbing all events */
771 if (ev->type == SDL_MOUSEBUTTONDOWN) {
772 buttonstate |= SDL_BUTTON(bev->button);
774 buttonstate &= ~SDL_BUTTON(bev->button);
776 sdl_send_mouse_event(0, 0, bev->x, bev->y, buttonstate);
780 static void handle_activation(SDL_Event *ev)
783 /* Disable grab if the window no longer has the focus
784 * (Windows-only workaround) */
785 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
786 !ev->active.gain && !gui_fullscreen) {
790 if (!gui_grab && ev->active.gain && qemu_console_is_graphic(NULL) &&
791 (qemu_input_is_absolute() || absolute_enabled)) {
792 absolute_mouse_grab();
794 if (ev->active.state & SDL_APPACTIVE) {
795 if (ev->active.gain) {
796 /* Back to default interval */
797 update_displaychangelistener(dcl, GUI_REFRESH_INTERVAL_DEFAULT);
799 /* Sleeping interval. Not using the long default here as
800 * sdl_refresh does not only update the guest screen, but
801 * also checks for gui events. */
802 update_displaychangelistener(dcl, 500);
807 static void sdl_refresh(DisplayChangeListener *dcl)
809 SDL_Event ev1, *ev = &ev1;
812 if (last_vm_running != runstate_is_running()) {
813 last_vm_running = runstate_is_running();
814 sdl_update_caption();
817 graphic_hw_update(NULL);
818 SDL_EnableUNICODE(!qemu_console_is_graphic(NULL));
820 while (SDL_PollEvent(ev)) {
822 case SDL_VIDEOEXPOSE:
823 sdl_update(dcl, 0, 0, real_screen->w, real_screen->h);
836 qemu_system_shutdown_request();
839 case SDL_MOUSEMOTION:
841 handle_mousemotion(ev);
843 case SDL_MOUSEBUTTONDOWN:
844 case SDL_MOUSEBUTTONUP:
846 handle_mousebutton(ev);
848 case SDL_ACTIVEEVENT:
849 handle_activation(ev);
851 case SDL_VIDEORESIZE:
852 sdl_scale(ev->resize.w, ev->resize.h);
853 graphic_hw_invalidate(NULL);
854 graphic_hw_update(NULL);
862 if (idle_counter < SDL_MAX_IDLE_COUNT) {
864 if (idle_counter >= SDL_MAX_IDLE_COUNT) {
865 dcl->update_interval = GUI_REFRESH_INTERVAL_DEFAULT;
870 dcl->update_interval = SDL_REFRESH_INTERVAL_BUSY;
874 static void sdl_mouse_warp(DisplayChangeListener *dcl,
875 int x, int y, int on)
880 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) {
881 SDL_SetCursor(guest_sprite);
882 if (!qemu_input_is_absolute() && !absolute_enabled) {
889 guest_x = x, guest_y = y;
892 static void sdl_mouse_define(DisplayChangeListener *dcl,
895 uint8_t *image, *mask;
899 SDL_FreeCursor(guest_sprite);
901 bpl = cursor_get_mono_bpl(c);
902 image = g_malloc0(bpl * c->height);
903 mask = g_malloc0(bpl * c->height);
904 cursor_get_mono_image(c, 0x000000, image);
905 cursor_get_mono_mask(c, 0, mask);
906 guest_sprite = SDL_CreateCursor(image, mask, c->width, c->height,
912 (gui_grab || qemu_input_is_absolute() || absolute_enabled))
913 SDL_SetCursor(guest_sprite);
916 static void sdl_cleanup(void)
919 SDL_FreeCursor(guest_sprite);
920 SDL_QuitSubSystem(SDL_INIT_VIDEO);
923 static const DisplayChangeListenerOps dcl_ops = {
925 .dpy_gfx_update = sdl_update,
926 .dpy_gfx_switch = sdl_switch,
927 .dpy_gfx_check_format = sdl_check_format,
928 .dpy_refresh = sdl_refresh,
929 .dpy_mouse_set = sdl_mouse_warp,
930 .dpy_cursor_define = sdl_mouse_define,
933 void sdl_display_early_init(int opengl)
935 if (opengl == 1 /* on */) {
937 "SDL1 display code has no opengl support.\n"
938 "Please recompile qemu with SDL2, using\n"
939 "./configure --enable-sdl --with-sdlabi=2.0\n");
943 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
947 const SDL_VideoInfo *vi;
950 #if defined(__APPLE__)
951 /* always use generic keymaps */
952 if (!keyboard_layout)
953 keyboard_layout = "en-us";
955 if(keyboard_layout) {
956 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
965 setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 0);
968 /* on Linux, SDL may use fbcon|directfb|svgalib when run without
969 * accessible $DISPLAY to open X11 window. This is often the case
970 * when qemu is run using sudo. But in this case, and when actually
971 * run in X11 environment, SDL fights with X11 for the video card,
972 * making current display unavailable, often until reboot.
973 * So make x11 the default SDL video driver if this variable is unset.
974 * This is a bit hackish but saves us from bigger problem.
975 * Maybe it's a good idea to fix this in SDL instead.
977 setenv("SDL_VIDEODRIVER", "x11", 0);
980 /* Enable normal up/down events for Caps-Lock and Num-Lock keys.
981 * This requires SDL >= 1.2.14. */
982 setenv("SDL_DISABLE_LOCK_KEYS", "1", 1);
984 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
985 if (SDL_Init (flags)) {
986 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
990 vi = SDL_GetVideoInfo();
991 host_format = *(vi->vfmt);
993 /* Load a 32x32x4 image. White pixels are transparent. */
994 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp");
996 SDL_Surface *image = SDL_LoadBMP(filename);
998 uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255);
999 SDL_SetColorKey(image, SDL_SRCCOLORKEY, colorkey);
1000 SDL_WM_SetIcon(image, NULL);
1010 dcl = g_new0(DisplayChangeListener, 1);
1011 dcl->ops = &dcl_ops;
1012 register_displaychangelistener(dcl);
1014 mouse_mode_notifier.notify = sdl_mouse_mode_change;
1015 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
1017 sdl_update_caption();
1018 SDL_EnableKeyRepeat(250, 50);
1021 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
1022 sdl_cursor_normal = SDL_GetCursor();
1024 atexit(sdl_cleanup);