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 width, int height, int bpp)
93 // printf("resizing to %d %d\n", w, h);
95 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
97 flags |= SDL_FULLSCREEN;
101 real_screen = SDL_SetVideoMode(width, height, bpp, flags);
103 fprintf(stderr, "Could not open SDL display\n");
108 static void sdl_resize(DisplayState *ds)
111 do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
114 if (guest_screen != NULL) {
115 SDL_FreeSurface(guest_screen);
121 static PixelFormat sdl_to_qemu_pixelformat(SDL_PixelFormat *sdl_pf)
125 memset(&qemu_pf, 0x00, sizeof(PixelFormat));
127 qemu_pf.bits_per_pixel = sdl_pf->BitsPerPixel;
128 qemu_pf.bytes_per_pixel = sdl_pf->BytesPerPixel;
129 qemu_pf.depth = (qemu_pf.bits_per_pixel) == 32 ? 24 : (qemu_pf.bits_per_pixel);
131 qemu_pf.rmask = sdl_pf->Rmask;
132 qemu_pf.gmask = sdl_pf->Gmask;
133 qemu_pf.bmask = sdl_pf->Bmask;
134 qemu_pf.amask = sdl_pf->Amask;
136 qemu_pf.rshift = sdl_pf->Rshift;
137 qemu_pf.gshift = sdl_pf->Gshift;
138 qemu_pf.bshift = sdl_pf->Bshift;
139 qemu_pf.ashift = sdl_pf->Ashift;
141 qemu_pf.rbits = 8 - sdl_pf->Rloss;
142 qemu_pf.gbits = 8 - sdl_pf->Gloss;
143 qemu_pf.bbits = 8 - sdl_pf->Bloss;
144 qemu_pf.abits = 8 - sdl_pf->Aloss;
146 qemu_pf.rmax = ((1 << qemu_pf.rbits) - 1);
147 qemu_pf.gmax = ((1 << qemu_pf.gbits) - 1);
148 qemu_pf.bmax = ((1 << qemu_pf.bbits) - 1);
149 qemu_pf.amax = ((1 << qemu_pf.abits) - 1);
154 static DisplaySurface* sdl_create_displaysurface(int width, int height)
156 DisplaySurface *surface = (DisplaySurface*) qemu_mallocz(sizeof(DisplaySurface));
157 if (surface == NULL) {
158 fprintf(stderr, "sdl_create_displaysurface: malloc failed\n");
162 surface->width = width;
163 surface->height = height;
166 do_sdl_resize(width, height, 16);
168 do_sdl_resize(width, height, 32);
170 surface->pf = sdl_to_qemu_pixelformat(real_screen->format);
171 surface->linesize = real_screen->pitch;
172 surface->data = real_screen->pixels;
174 #ifdef WORDS_BIGENDIAN
175 surface->flags = QEMU_ALLOCATED_FLAG | QEMU_BIG_ENDIAN_FLAG;
177 surface->flags = QEMU_ALLOCATED_FLAG;
184 static void sdl_free_displaysurface(DisplaySurface *surface)
192 static DisplaySurface* sdl_resize_displaysurface(DisplaySurface *surface, int width, int height)
194 sdl_free_displaysurface(surface);
195 return sdl_create_displaysurface(width, height);
198 /* generic keyboard conversion */
200 #include "sdl_keysym.h"
202 static kbd_layout_t *kbd_layout = NULL;
204 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
207 /* workaround for X11+SDL bug with AltGR */
208 keysym = ev->keysym.sym;
209 if (keysym == 0 && ev->keysym.scancode == 113)
211 /* For Japanese key '\' and '|' */
212 if (keysym == 92 && ev->keysym.scancode == 133) {
215 return keysym2scancode(kbd_layout, keysym);
218 /* specific keyboard conversions from scan codes */
222 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
224 return ev->keysym.scancode;
229 #if defined(SDL_VIDEO_DRIVER_X11)
230 #include <X11/XKBlib.h>
232 static int check_for_evdev(void)
237 const char *keycodes;
239 SDL_VERSION(&info.version);
240 if (!SDL_GetWMInfo(&info))
243 desc = XkbGetKeyboard(info.info.x11.display,
244 XkbGBN_AllComponentsMask,
246 if (desc == NULL || desc->names == NULL)
249 keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
250 if (keycodes == NULL)
251 fprintf(stderr, "could not lookup keycode name\n");
252 else if (strstart(keycodes, "evdev_", NULL))
254 else if (!strstart(keycodes, "xfree86_", NULL))
256 "unknown keycodes `%s', please report to qemu-devel@nongnu.org\n",
259 XkbFreeClientMap(desc, XkbGBN_AllComponentsMask, True);
264 static int check_for_evdev(void)
270 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
273 static int has_evdev = -1;
276 has_evdev = check_for_evdev();
278 keycode = ev->keysym.scancode;
282 } else if (keycode < 97) {
283 keycode -= 8; /* just an offset */
284 } else if (keycode < 158) {
285 /* use conversion table */
287 keycode = translate_evdev_keycode(keycode - 97);
289 keycode = translate_xfree86_keycode(keycode - 97);
290 } else if (keycode == 208) { /* Hiragana_Katakana */
292 } else if (keycode == 211) { /* backslash */
302 static void reset_keys(void)
305 for(i = 0; i < 256; i++) {
306 if (modifiers_state[i]) {
308 kbd_put_keycode(0xe0);
309 kbd_put_keycode(i | 0x80);
310 modifiers_state[i] = 0;
315 static void sdl_process_key(SDL_KeyboardEvent *ev)
319 if (ev->keysym.sym == SDLK_PAUSE) {
322 if (ev->type == SDL_KEYUP)
324 kbd_put_keycode(0xe1);
325 kbd_put_keycode(0x1d | v);
326 kbd_put_keycode(0x45 | v);
331 keycode = sdl_keyevent_to_keycode_generic(ev);
333 keycode = sdl_keyevent_to_keycode(ev);
338 /* sent when leaving window: reset the modifiers state */
341 case 0x2a: /* Left Shift */
342 case 0x36: /* Right Shift */
343 case 0x1d: /* Left CTRL */
344 case 0x9d: /* Right CTRL */
345 case 0x38: /* Left ALT */
346 case 0xb8: /* Right ALT */
347 if (ev->type == SDL_KEYUP)
348 modifiers_state[keycode] = 0;
350 modifiers_state[keycode] = 1;
352 case 0x45: /* num lock */
353 case 0x3a: /* caps lock */
354 /* SDL does not send the key up event, so we generate it */
355 kbd_put_keycode(keycode);
356 kbd_put_keycode(keycode | 0x80);
360 /* now send the key code */
362 kbd_put_keycode(0xe0);
363 if (ev->type == SDL_KEYUP)
364 kbd_put_keycode(keycode | 0x80);
366 kbd_put_keycode(keycode & 0x7f);
369 static void sdl_update_caption(void)
372 const char *status = "";
375 status = " [Stopped]";
378 status = " - Press Ctrl-Alt to exit grab";
380 status = " - Press Ctrl-Alt-Shift to exit grab";
384 snprintf(buf, sizeof(buf), "QEMU (%s)%s", qemu_name, status);
386 snprintf(buf, sizeof(buf), "QEMU%s", status);
388 SDL_WM_SetCaption(buf, "QEMU");
391 static void sdl_hide_cursor(void)
396 if (kbd_mouse_is_absolute()) {
398 SDL_SetCursor(sdl_cursor_hidden);
404 static void sdl_show_cursor(void)
409 if (!kbd_mouse_is_absolute()) {
412 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
413 SDL_SetCursor(guest_sprite);
415 SDL_SetCursor(sdl_cursor_normal);
419 static void sdl_grab_start(void)
422 SDL_SetCursor(guest_sprite);
423 if (!kbd_mouse_is_absolute() && !absolute_enabled)
424 SDL_WarpMouse(guest_x, guest_y);
428 if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
430 sdl_update_caption();
435 static void sdl_grab_end(void)
437 SDL_WM_GrabInput(SDL_GRAB_OFF);
440 sdl_update_caption();
443 static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
447 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
448 buttons |= MOUSE_EVENT_LBUTTON;
449 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
450 buttons |= MOUSE_EVENT_RBUTTON;
451 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
452 buttons |= MOUSE_EVENT_MBUTTON;
454 if (kbd_mouse_is_absolute()) {
455 if (!absolute_enabled) {
460 absolute_enabled = 1;
463 dx = x * 0x7FFF / (width - 1);
464 dy = y * 0x7FFF / (height - 1);
465 } else if (absolute_enabled) {
467 absolute_enabled = 0;
468 } else if (guest_cursor) {
477 kbd_mouse_event(dx, dy, dz, buttons);
480 static void toggle_full_screen(DisplayState *ds)
482 gui_fullscreen = !gui_fullscreen;
483 do_sdl_resize(real_screen->w, real_screen->h, real_screen->format->BitsPerPixel);
484 if (gui_fullscreen) {
485 gui_saved_grab = gui_grab;
495 static void sdl_refresh(DisplayState *ds)
497 SDL_Event ev1, *ev = &ev1;
499 int buttonstate = SDL_GetMouseState(NULL, NULL);
501 if (last_vm_running != vm_running) {
502 last_vm_running = vm_running;
503 sdl_update_caption();
507 SDL_EnableUNICODE(!is_graphic_console());
509 while (SDL_PollEvent(ev)) {
511 case SDL_VIDEOEXPOSE:
512 sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
516 if (ev->type == SDL_KEYDOWN) {
518 mod_state = (SDL_GetModState() & gui_grab_code) ==
521 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
522 (gui_grab_code | KMOD_LSHIFT);
524 gui_key_modifier_pressed = mod_state;
525 if (gui_key_modifier_pressed) {
527 keycode = sdl_keyevent_to_keycode(&ev->key);
529 case 0x21: /* 'f' key on US keyboard */
530 toggle_full_screen(ds);
533 case 0x02 ... 0x0a: /* '1' to '9' keys */
534 /* Reset the modifiers sent to the current console */
536 console_select(keycode - 0x02);
537 if (!is_graphic_console()) {
538 /* display grab if going to a text console */
547 } else if (!is_graphic_console()) {
550 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
551 switch(ev->key.keysym.sym) {
552 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
553 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
554 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
555 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
556 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
557 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
558 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
559 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
563 switch(ev->key.keysym.sym) {
564 case SDLK_UP: keysym = QEMU_KEY_UP; break;
565 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
566 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
567 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
568 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
569 case SDLK_END: keysym = QEMU_KEY_END; break;
570 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
571 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
572 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;
573 case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
578 kbd_put_keysym(keysym);
579 } else if (ev->key.keysym.unicode != 0) {
580 kbd_put_keysym(ev->key.keysym.unicode);
583 } else if (ev->type == SDL_KEYUP) {
585 mod_state = (ev->key.keysym.mod & gui_grab_code);
587 mod_state = (ev->key.keysym.mod &
588 (gui_grab_code | KMOD_LSHIFT));
591 if (gui_key_modifier_pressed) {
592 gui_key_modifier_pressed = 0;
593 if (gui_keysym == 0) {
594 /* exit/enter grab if pressing Ctrl-Alt */
596 /* if the application is not active,
597 do not try to enter grab state. It
599 'SDL_WM_GrabInput(SDL_GRAB_ON)'
600 from blocking all the application
602 if (SDL_GetAppState() & SDL_APPACTIVE)
607 /* SDL does not send back all the
608 modifiers key, so we must correct it */
616 if (is_graphic_console() && !gui_keysym)
617 sdl_process_key(&ev->key);
621 qemu_system_shutdown_request();
623 case SDL_MOUSEMOTION:
624 if (gui_grab || kbd_mouse_is_absolute() ||
626 sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
627 ev->motion.x, ev->motion.y, ev->motion.state);
630 case SDL_MOUSEBUTTONDOWN:
631 case SDL_MOUSEBUTTONUP:
633 SDL_MouseButtonEvent *bev = &ev->button;
634 if (!gui_grab && !kbd_mouse_is_absolute()) {
635 if (ev->type == SDL_MOUSEBUTTONDOWN &&
636 (bev->button == SDL_BUTTON_LEFT)) {
637 /* start grabbing all events */
643 if (ev->type == SDL_MOUSEBUTTONDOWN) {
644 buttonstate |= SDL_BUTTON(bev->button);
646 buttonstate &= ~SDL_BUTTON(bev->button);
648 #ifdef SDL_BUTTON_WHEELUP
649 if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
651 } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
655 sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
659 case SDL_ACTIVEEVENT:
660 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
661 !ev->active.gain && !gui_fullscreen_initial_grab) {
664 if (ev->active.state & SDL_APPACTIVE) {
665 if (ev->active.gain) {
666 /* Back to default interval */
667 dcl->gui_timer_interval = 0;
670 /* Sleeping interval */
671 dcl->gui_timer_interval = 500;
682 static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
684 SDL_Rect dst = { x, y, w, h };
685 SDL_FillRect(real_screen, &dst, c);
688 static void sdl_mouse_warp(int x, int y, int on)
693 if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
694 SDL_SetCursor(guest_sprite);
695 if (!kbd_mouse_is_absolute() && !absolute_enabled)
701 guest_x = x, guest_y = y;
704 static void sdl_mouse_define(int width, int height, int bpp,
705 int hot_x, int hot_y,
706 uint8_t *image, uint8_t *mask)
708 uint8_t sprite[256], *line;
709 int x, y, dst, bypl, src = 0;
711 SDL_FreeCursor(guest_sprite);
713 memset(sprite, 0, 256);
714 bypl = ((width * bpp + 31) >> 5) << 2;
715 for (y = 0, dst = 0; y < height; y ++, image += bypl) {
717 for (x = 0; x < width; x ++, dst ++) {
720 src = *(line ++); src |= *(line ++); src |= *(line ++);
724 src = *(line ++); src |= *(line ++);
730 src = 0xf & (line[x >> 1] >> ((x & 1)) << 2);
733 src = 3 & (line[x >> 2] >> ((x & 3)) << 1);
736 src = 1 & (line[x >> 3] >> (x & 7));
740 sprite[dst >> 3] |= (1 << (~dst & 7)) & mask[dst >> 3];
743 guest_sprite = SDL_CreateCursor(sprite, mask, width, height, hot_x, hot_y);
746 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
747 SDL_SetCursor(guest_sprite);
750 static void sdl_cleanup(void)
753 SDL_FreeCursor(guest_sprite);
757 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
761 DisplayAllocator *da;
762 const SDL_VideoInfo *vi;
764 #if defined(__APPLE__)
765 /* always use generic keymaps */
766 if (!keyboard_layout)
767 keyboard_layout = "en-us";
769 if(keyboard_layout) {
770 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
778 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
779 if (SDL_Init (flags)) {
780 fprintf(stderr, "Could not initialize SDL - exiting\n");
783 vi = SDL_GetVideoInfo();
784 hostbpp = vi->vfmt->BitsPerPixel;
786 dcl = qemu_mallocz(sizeof(DisplayChangeListener));
787 dcl->dpy_update = sdl_update;
788 dcl->dpy_resize = sdl_resize;
789 dcl->dpy_refresh = sdl_refresh;
790 dcl->dpy_setdata = sdl_setdata;
791 dcl->dpy_fill = sdl_fill;
792 ds->mouse_set = sdl_mouse_warp;
793 ds->cursor_define = sdl_mouse_define;
794 register_displaychangelistener(ds, dcl);
796 da = qemu_mallocz(sizeof(DisplayAllocator));
797 da->create_displaysurface = sdl_create_displaysurface;
798 da->resize_displaysurface = sdl_resize_displaysurface;
799 da->free_displaysurface = sdl_free_displaysurface;
800 if (register_displayallocator(ds, da) == da) {
801 DisplaySurface *surf;
802 surf = sdl_create_displaysurface(ds_get_width(ds), ds_get_height(ds));
803 defaultallocator_free_displaysurface(ds->surface);
808 sdl_update_caption();
809 SDL_EnableKeyRepeat(250, 50);
812 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
813 sdl_cursor_normal = SDL_GetCursor();
818 gui_fullscreen_initial_grab = 1;