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 #include <SDL_syswm.h>
31 #include "qemu-common.h"
36 static DisplayChangeListener *dcl;
37 static SDL_Surface *real_screen;
38 static SDL_Surface *guest_screen = NULL;
39 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
40 static int last_vm_running;
41 static int gui_saved_grab;
42 static int gui_fullscreen;
43 static int gui_noframe;
44 static int gui_key_modifier_pressed;
45 static int gui_keysym;
46 static int gui_fullscreen_initial_grab;
47 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
48 static uint8_t modifiers_state[256];
49 static int width, height;
50 static SDL_Cursor *sdl_cursor_normal;
51 static SDL_Cursor *sdl_cursor_hidden;
52 static int absolute_enabled = 0;
53 static int guest_cursor = 0;
54 static int guest_x, guest_y;
55 static SDL_Cursor *guest_sprite = 0;
56 static uint8_t allocator;
57 static uint8_t hostbpp;
59 static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
61 // printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
68 SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
70 SDL_UpdateRect(real_screen, x, y, w, h);
73 static void sdl_setdata(DisplayState *ds)
78 rec.w = real_screen->w;
79 rec.h = real_screen->h;
81 if (guest_screen != NULL) SDL_FreeSurface(guest_screen);
83 guest_screen = SDL_CreateRGBSurfaceFrom(ds_get_data(ds), ds_get_width(ds), ds_get_height(ds),
84 ds_get_bits_per_pixel(ds), ds_get_linesize(ds),
85 ds->surface->pf.rmask, ds->surface->pf.gmask,
86 ds->surface->pf.bmask, ds->surface->pf.amask);
89 static void do_sdl_resize(int new_width, int new_height, int bpp)
93 // printf("resizing to %d %d\n", w, h);
95 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
97 flags |= SDL_FULLSCREEN;
103 real_screen = SDL_SetVideoMode(width, height, bpp, flags);
105 fprintf(stderr, "Could not open SDL display\n");
110 static void sdl_resize(DisplayState *ds)
113 do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
116 if (guest_screen != NULL) {
117 SDL_FreeSurface(guest_screen);
123 static PixelFormat sdl_to_qemu_pixelformat(SDL_PixelFormat *sdl_pf)
127 memset(&qemu_pf, 0x00, sizeof(PixelFormat));
129 qemu_pf.bits_per_pixel = sdl_pf->BitsPerPixel;
130 qemu_pf.bytes_per_pixel = sdl_pf->BytesPerPixel;
131 qemu_pf.depth = (qemu_pf.bits_per_pixel) == 32 ? 24 : (qemu_pf.bits_per_pixel);
133 qemu_pf.rmask = sdl_pf->Rmask;
134 qemu_pf.gmask = sdl_pf->Gmask;
135 qemu_pf.bmask = sdl_pf->Bmask;
136 qemu_pf.amask = sdl_pf->Amask;
138 qemu_pf.rshift = sdl_pf->Rshift;
139 qemu_pf.gshift = sdl_pf->Gshift;
140 qemu_pf.bshift = sdl_pf->Bshift;
141 qemu_pf.ashift = sdl_pf->Ashift;
143 qemu_pf.rbits = 8 - sdl_pf->Rloss;
144 qemu_pf.gbits = 8 - sdl_pf->Gloss;
145 qemu_pf.bbits = 8 - sdl_pf->Bloss;
146 qemu_pf.abits = 8 - sdl_pf->Aloss;
148 qemu_pf.rmax = ((1 << qemu_pf.rbits) - 1);
149 qemu_pf.gmax = ((1 << qemu_pf.gbits) - 1);
150 qemu_pf.bmax = ((1 << qemu_pf.bbits) - 1);
151 qemu_pf.amax = ((1 << qemu_pf.abits) - 1);
156 static DisplaySurface* sdl_create_displaysurface(int width, int height)
158 DisplaySurface *surface = (DisplaySurface*) qemu_mallocz(sizeof(DisplaySurface));
159 if (surface == NULL) {
160 fprintf(stderr, "sdl_create_displaysurface: malloc failed\n");
164 surface->width = width;
165 surface->height = height;
168 do_sdl_resize(width, height, 16);
170 do_sdl_resize(width, height, 32);
172 surface->pf = sdl_to_qemu_pixelformat(real_screen->format);
173 surface->linesize = real_screen->pitch;
174 surface->data = real_screen->pixels;
176 #ifdef WORDS_BIGENDIAN
177 surface->flags = QEMU_ALLOCATED_FLAG | QEMU_BIG_ENDIAN_FLAG;
179 surface->flags = QEMU_ALLOCATED_FLAG;
186 static void sdl_free_displaysurface(DisplaySurface *surface)
194 static DisplaySurface* sdl_resize_displaysurface(DisplaySurface *surface, int width, int height)
196 sdl_free_displaysurface(surface);
197 return sdl_create_displaysurface(width, height);
200 /* generic keyboard conversion */
202 #include "sdl_keysym.h"
204 static kbd_layout_t *kbd_layout = NULL;
206 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
209 /* workaround for X11+SDL bug with AltGR */
210 keysym = ev->keysym.sym;
211 if (keysym == 0 && ev->keysym.scancode == 113)
213 /* For Japanese key '\' and '|' */
214 if (keysym == 92 && ev->keysym.scancode == 133) {
217 return keysym2scancode(kbd_layout, keysym);
220 /* specific keyboard conversions from scan codes */
224 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
226 return ev->keysym.scancode;
231 #if defined(SDL_VIDEO_DRIVER_X11)
232 #include <X11/XKBlib.h>
234 static int check_for_evdev(void)
239 const char *keycodes;
241 SDL_VERSION(&info.version);
242 if (!SDL_GetWMInfo(&info))
245 desc = XkbGetKeyboard(info.info.x11.display,
246 XkbGBN_AllComponentsMask,
248 if (desc == NULL || desc->names == NULL)
251 keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
252 if (keycodes == NULL)
253 fprintf(stderr, "could not lookup keycode name\n");
254 else if (strstart(keycodes, "evdev", NULL))
256 else if (!strstart(keycodes, "xfree86", NULL))
261 XkbFreeClientMap(desc, XkbGBN_AllComponentsMask, True);
266 static int check_for_evdev(void)
272 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
275 static int has_evdev = -1;
278 has_evdev = check_for_evdev();
280 keycode = ev->keysym.scancode;
284 } else if (keycode < 97) {
285 keycode -= 8; /* just an offset */
286 } else if (keycode < 158) {
287 /* use conversion table */
289 keycode = translate_evdev_keycode(keycode - 97);
291 keycode = translate_xfree86_keycode(keycode - 97);
292 } else if (keycode == 208) { /* Hiragana_Katakana */
294 } else if (keycode == 211) { /* backslash */
304 static void reset_keys(void)
307 for(i = 0; i < 256; i++) {
308 if (modifiers_state[i]) {
310 kbd_put_keycode(0xe0);
311 kbd_put_keycode(i | 0x80);
312 modifiers_state[i] = 0;
317 static void sdl_process_key(SDL_KeyboardEvent *ev)
321 if (ev->keysym.sym == SDLK_PAUSE) {
324 if (ev->type == SDL_KEYUP)
326 kbd_put_keycode(0xe1);
327 kbd_put_keycode(0x1d | v);
328 kbd_put_keycode(0x45 | v);
333 keycode = sdl_keyevent_to_keycode_generic(ev);
335 keycode = sdl_keyevent_to_keycode(ev);
340 /* sent when leaving window: reset the modifiers state */
343 case 0x2a: /* Left Shift */
344 case 0x36: /* Right Shift */
345 case 0x1d: /* Left CTRL */
346 case 0x9d: /* Right CTRL */
347 case 0x38: /* Left ALT */
348 case 0xb8: /* Right ALT */
349 if (ev->type == SDL_KEYUP)
350 modifiers_state[keycode] = 0;
352 modifiers_state[keycode] = 1;
354 case 0x45: /* num lock */
355 case 0x3a: /* caps lock */
356 /* SDL does not send the key up event, so we generate it */
357 kbd_put_keycode(keycode);
358 kbd_put_keycode(keycode | 0x80);
362 /* now send the key code */
364 kbd_put_keycode(0xe0);
365 if (ev->type == SDL_KEYUP)
366 kbd_put_keycode(keycode | 0x80);
368 kbd_put_keycode(keycode & 0x7f);
371 static void sdl_update_caption(void)
374 const char *status = "";
377 status = " [Stopped]";
380 status = " - Press Ctrl-Alt to exit grab";
382 status = " - Press Ctrl-Alt-Shift to exit grab";
386 snprintf(buf, sizeof(buf), "QEMU (%s)%s", qemu_name, status);
388 snprintf(buf, sizeof(buf), "QEMU%s", status);
390 SDL_WM_SetCaption(buf, "QEMU");
393 static void sdl_hide_cursor(void)
398 if (kbd_mouse_is_absolute()) {
400 SDL_SetCursor(sdl_cursor_hidden);
406 static void sdl_show_cursor(void)
411 if (!kbd_mouse_is_absolute()) {
414 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
415 SDL_SetCursor(guest_sprite);
417 SDL_SetCursor(sdl_cursor_normal);
421 static void sdl_grab_start(void)
424 SDL_SetCursor(guest_sprite);
425 if (!kbd_mouse_is_absolute() && !absolute_enabled)
426 SDL_WarpMouse(guest_x, guest_y);
430 if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
432 sdl_update_caption();
437 static void sdl_grab_end(void)
439 SDL_WM_GrabInput(SDL_GRAB_OFF);
442 sdl_update_caption();
445 static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
449 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
450 buttons |= MOUSE_EVENT_LBUTTON;
451 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
452 buttons |= MOUSE_EVENT_RBUTTON;
453 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
454 buttons |= MOUSE_EVENT_MBUTTON;
456 if (kbd_mouse_is_absolute()) {
457 if (!absolute_enabled) {
462 absolute_enabled = 1;
465 dx = x * 0x7FFF / (width - 1);
466 dy = y * 0x7FFF / (height - 1);
467 } else if (absolute_enabled) {
469 absolute_enabled = 0;
470 } else if (guest_cursor) {
479 kbd_mouse_event(dx, dy, dz, buttons);
482 static void toggle_full_screen(DisplayState *ds)
484 gui_fullscreen = !gui_fullscreen;
485 do_sdl_resize(real_screen->w, real_screen->h, real_screen->format->BitsPerPixel);
486 if (gui_fullscreen) {
487 gui_saved_grab = gui_grab;
497 static void sdl_refresh(DisplayState *ds)
499 SDL_Event ev1, *ev = &ev1;
501 int buttonstate = SDL_GetMouseState(NULL, NULL);
503 if (last_vm_running != vm_running) {
504 last_vm_running = vm_running;
505 sdl_update_caption();
509 SDL_EnableUNICODE(!is_graphic_console());
511 while (SDL_PollEvent(ev)) {
513 case SDL_VIDEOEXPOSE:
514 sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
518 if (ev->type == SDL_KEYDOWN) {
520 mod_state = (SDL_GetModState() & gui_grab_code) ==
523 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
524 (gui_grab_code | KMOD_LSHIFT);
526 gui_key_modifier_pressed = mod_state;
527 if (gui_key_modifier_pressed) {
529 keycode = sdl_keyevent_to_keycode(&ev->key);
531 case 0x21: /* 'f' key on US keyboard */
532 toggle_full_screen(ds);
535 case 0x02 ... 0x0a: /* '1' to '9' keys */
536 /* Reset the modifiers sent to the current console */
538 console_select(keycode - 0x02);
539 if (!is_graphic_console()) {
540 /* display grab if going to a text console */
549 } else if (!is_graphic_console()) {
552 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
553 switch(ev->key.keysym.sym) {
554 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
555 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
556 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
557 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
558 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
559 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
560 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
561 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
565 switch(ev->key.keysym.sym) {
566 case SDLK_UP: keysym = QEMU_KEY_UP; break;
567 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
568 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
569 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
570 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
571 case SDLK_END: keysym = QEMU_KEY_END; break;
572 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
573 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
574 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;
575 case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
580 kbd_put_keysym(keysym);
581 } else if (ev->key.keysym.unicode != 0) {
582 kbd_put_keysym(ev->key.keysym.unicode);
585 } else if (ev->type == SDL_KEYUP) {
587 mod_state = (ev->key.keysym.mod & gui_grab_code);
589 mod_state = (ev->key.keysym.mod &
590 (gui_grab_code | KMOD_LSHIFT));
593 if (gui_key_modifier_pressed) {
594 gui_key_modifier_pressed = 0;
595 if (gui_keysym == 0) {
596 /* exit/enter grab if pressing Ctrl-Alt */
598 /* if the application is not active,
599 do not try to enter grab state. It
601 'SDL_WM_GrabInput(SDL_GRAB_ON)'
602 from blocking all the application
604 if (SDL_GetAppState() & SDL_APPACTIVE)
609 /* SDL does not send back all the
610 modifiers key, so we must correct it */
618 if (is_graphic_console() && !gui_keysym)
619 sdl_process_key(&ev->key);
623 qemu_system_shutdown_request();
625 case SDL_MOUSEMOTION:
626 if (gui_grab || kbd_mouse_is_absolute() ||
628 sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
629 ev->motion.x, ev->motion.y, ev->motion.state);
632 case SDL_MOUSEBUTTONDOWN:
633 case SDL_MOUSEBUTTONUP:
635 SDL_MouseButtonEvent *bev = &ev->button;
636 if (!gui_grab && !kbd_mouse_is_absolute()) {
637 if (ev->type == SDL_MOUSEBUTTONDOWN &&
638 (bev->button == SDL_BUTTON_LEFT)) {
639 /* start grabbing all events */
645 if (ev->type == SDL_MOUSEBUTTONDOWN) {
646 buttonstate |= SDL_BUTTON(bev->button);
648 buttonstate &= ~SDL_BUTTON(bev->button);
650 #ifdef SDL_BUTTON_WHEELUP
651 if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
653 } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
657 sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
661 case SDL_ACTIVEEVENT:
662 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
663 !ev->active.gain && !gui_fullscreen_initial_grab) {
666 if (ev->active.state & SDL_APPACTIVE) {
667 if (ev->active.gain) {
668 /* Back to default interval */
669 dcl->gui_timer_interval = 0;
672 /* Sleeping interval */
673 dcl->gui_timer_interval = 500;
684 static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
686 SDL_Rect dst = { x, y, w, h };
687 SDL_FillRect(real_screen, &dst, c);
690 static void sdl_mouse_warp(int x, int y, int on)
695 if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
696 SDL_SetCursor(guest_sprite);
697 if (!kbd_mouse_is_absolute() && !absolute_enabled)
703 guest_x = x, guest_y = y;
706 static void sdl_mouse_define(int width, int height, int bpp,
707 int hot_x, int hot_y,
708 uint8_t *image, uint8_t *mask)
710 uint8_t sprite[256], *line;
711 int x, y, dst, bypl, src = 0;
713 SDL_FreeCursor(guest_sprite);
715 memset(sprite, 0, 256);
716 bypl = ((width * bpp + 31) >> 5) << 2;
717 for (y = 0, dst = 0; y < height; y ++, image += bypl) {
719 for (x = 0; x < width; x ++, dst ++) {
722 src = *(line ++); src |= *(line ++); src |= *(line ++);
726 src = *(line ++); src |= *(line ++);
732 src = 0xf & (line[x >> 1] >> ((x & 1)) << 2);
735 src = 3 & (line[x >> 2] >> ((x & 3)) << 1);
738 src = 1 & (line[x >> 3] >> (x & 7));
742 sprite[dst >> 3] |= (1 << (~dst & 7)) & mask[dst >> 3];
745 guest_sprite = SDL_CreateCursor(sprite, mask, width, height, hot_x, hot_y);
748 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
749 SDL_SetCursor(guest_sprite);
752 static void sdl_cleanup(void)
755 SDL_FreeCursor(guest_sprite);
759 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
763 DisplayAllocator *da;
764 const SDL_VideoInfo *vi;
766 #if defined(__APPLE__)
767 /* always use generic keymaps */
768 if (!keyboard_layout)
769 keyboard_layout = "en-us";
771 if(keyboard_layout) {
772 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
780 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
781 if (SDL_Init (flags)) {
782 fprintf(stderr, "Could not initialize SDL - exiting\n");
785 vi = SDL_GetVideoInfo();
786 hostbpp = vi->vfmt->BitsPerPixel;
788 dcl = qemu_mallocz(sizeof(DisplayChangeListener));
789 dcl->dpy_update = sdl_update;
790 dcl->dpy_resize = sdl_resize;
791 dcl->dpy_refresh = sdl_refresh;
792 dcl->dpy_setdata = sdl_setdata;
793 dcl->dpy_fill = sdl_fill;
794 ds->mouse_set = sdl_mouse_warp;
795 ds->cursor_define = sdl_mouse_define;
796 register_displaychangelistener(ds, dcl);
798 da = qemu_mallocz(sizeof(DisplayAllocator));
799 da->create_displaysurface = sdl_create_displaysurface;
800 da->resize_displaysurface = sdl_resize_displaysurface;
801 da->free_displaysurface = sdl_free_displaysurface;
802 if (register_displayallocator(ds, da) == da) {
803 DisplaySurface *surf;
804 surf = sdl_create_displaysurface(ds_get_width(ds), ds_get_height(ds));
805 defaultallocator_free_displaysurface(ds->surface);
810 sdl_update_caption();
811 SDL_EnableKeyRepeat(250, 50);
814 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
815 sdl_cursor_normal = SDL_GetCursor();
820 gui_fullscreen_initial_grab = 1;