Merge branch 'upstream-merge'
[qemu-kvm/markmc.git] / sdl.c
blob034440f72157c927df0f177d988e5d581cd4658f
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.
24 #include <SDL.h>
25 #include <SDL_syswm.h>
27 #ifndef _WIN32
28 #include <signal.h>
29 #endif
31 #include "qemu-common.h"
32 #include "console.h"
33 #include "sysemu.h"
34 #include "x_keymap.h"
35 #include "sdl_zoom.h"
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 int gui_saved_grab;
43 static int gui_fullscreen;
44 static int gui_noframe;
45 static int gui_key_modifier_pressed;
46 static int gui_keysym;
47 static int gui_fullscreen_initial_grab;
48 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
49 static uint8_t modifiers_state[256];
50 static int width, height;
51 static SDL_Cursor *sdl_cursor_normal;
52 static SDL_Cursor *sdl_cursor_hidden;
53 static int absolute_enabled = 0;
54 static int guest_cursor = 0;
55 static int guest_x, guest_y;
56 static SDL_Cursor *guest_sprite = NULL;
57 static uint8_t allocator;
58 static SDL_PixelFormat host_format;
59 static int scaling_active = 0;
61 static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
63 // printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
64 SDL_Rect rec;
65 rec.x = x;
66 rec.y = y;
67 rec.w = w;
68 rec.h = h;
70 if (guest_screen) {
71 if (!scaling_active) {
72 SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
73 } else {
74 if (sdl_zoom_blit(guest_screen, real_screen, SMOOTHING_ON, &rec) < 0) {
75 fprintf(stderr, "Zoom blit failed\n");
76 exit(1);
80 SDL_UpdateRect(real_screen, rec.x, rec.y, rec.w, rec.h);
83 static void sdl_setdata(DisplayState *ds)
85 SDL_Rect rec;
86 rec.x = 0;
87 rec.y = 0;
88 rec.w = real_screen->w;
89 rec.h = real_screen->h;
91 if (guest_screen != NULL) SDL_FreeSurface(guest_screen);
93 guest_screen = SDL_CreateRGBSurfaceFrom(ds_get_data(ds), ds_get_width(ds), ds_get_height(ds),
94 ds_get_bits_per_pixel(ds), ds_get_linesize(ds),
95 ds->surface->pf.rmask, ds->surface->pf.gmask,
96 ds->surface->pf.bmask, ds->surface->pf.amask);
99 static void do_sdl_resize(int new_width, int new_height, int bpp)
101 int flags;
103 // printf("resizing to %d %d\n", w, h);
105 flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL|SDL_RESIZABLE;
106 if (gui_fullscreen)
107 flags |= SDL_FULLSCREEN;
108 if (gui_noframe)
109 flags |= SDL_NOFRAME;
111 width = new_width;
112 height = new_height;
113 real_screen = SDL_SetVideoMode(width, height, bpp, flags);
114 if (!real_screen) {
115 fprintf(stderr, "Could not open SDL display\n");
116 exit(1);
120 static void sdl_resize(DisplayState *ds)
122 if (!allocator) {
123 if (!scaling_active)
124 do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
125 else if (real_screen->format->BitsPerPixel != ds_get_bits_per_pixel(ds))
126 do_sdl_resize(real_screen->w, real_screen->h, ds_get_bits_per_pixel(ds));
127 sdl_setdata(ds);
128 } else {
129 if (guest_screen != NULL) {
130 SDL_FreeSurface(guest_screen);
131 guest_screen = NULL;
136 static PixelFormat sdl_to_qemu_pixelformat(SDL_PixelFormat *sdl_pf)
138 PixelFormat qemu_pf;
140 memset(&qemu_pf, 0x00, sizeof(PixelFormat));
142 qemu_pf.bits_per_pixel = sdl_pf->BitsPerPixel;
143 qemu_pf.bytes_per_pixel = sdl_pf->BytesPerPixel;
144 qemu_pf.depth = (qemu_pf.bits_per_pixel) == 32 ? 24 : (qemu_pf.bits_per_pixel);
146 qemu_pf.rmask = sdl_pf->Rmask;
147 qemu_pf.gmask = sdl_pf->Gmask;
148 qemu_pf.bmask = sdl_pf->Bmask;
149 qemu_pf.amask = sdl_pf->Amask;
151 qemu_pf.rshift = sdl_pf->Rshift;
152 qemu_pf.gshift = sdl_pf->Gshift;
153 qemu_pf.bshift = sdl_pf->Bshift;
154 qemu_pf.ashift = sdl_pf->Ashift;
156 qemu_pf.rbits = 8 - sdl_pf->Rloss;
157 qemu_pf.gbits = 8 - sdl_pf->Gloss;
158 qemu_pf.bbits = 8 - sdl_pf->Bloss;
159 qemu_pf.abits = 8 - sdl_pf->Aloss;
161 qemu_pf.rmax = ((1 << qemu_pf.rbits) - 1);
162 qemu_pf.gmax = ((1 << qemu_pf.gbits) - 1);
163 qemu_pf.bmax = ((1 << qemu_pf.bbits) - 1);
164 qemu_pf.amax = ((1 << qemu_pf.abits) - 1);
166 return qemu_pf;
169 static DisplaySurface* sdl_create_displaysurface(int width, int height)
171 DisplaySurface *surface = (DisplaySurface*) qemu_mallocz(sizeof(DisplaySurface));
172 if (surface == NULL) {
173 fprintf(stderr, "sdl_create_displaysurface: malloc failed\n");
174 exit(1);
177 surface->width = width;
178 surface->height = height;
180 if (scaling_active) {
181 if (host_format.BytesPerPixel != 2 && host_format.BytesPerPixel != 4) {
182 surface->linesize = width * 4;
183 surface->pf = qemu_default_pixelformat(32);
184 } else {
185 surface->linesize = width * host_format.BytesPerPixel;
186 surface->pf = sdl_to_qemu_pixelformat(&host_format);
188 #ifdef HOST_WORDS_BIGENDIAN
189 surface->flags = QEMU_ALLOCATED_FLAG | QEMU_BIG_ENDIAN_FLAG;
190 #else
191 surface->flags = QEMU_ALLOCATED_FLAG;
192 #endif
193 surface->data = (uint8_t*) qemu_mallocz(surface->linesize * surface->height);
195 return surface;
198 if (host_format.BitsPerPixel == 16)
199 do_sdl_resize(width, height, 16);
200 else
201 do_sdl_resize(width, height, 32);
203 surface->pf = sdl_to_qemu_pixelformat(real_screen->format);
204 surface->linesize = real_screen->pitch;
205 surface->data = real_screen->pixels;
207 #ifdef HOST_WORDS_BIGENDIAN
208 surface->flags = QEMU_REALPIXELS_FLAG | QEMU_BIG_ENDIAN_FLAG;
209 #else
210 surface->flags = QEMU_REALPIXELS_FLAG;
211 #endif
212 allocator = 1;
214 return surface;
217 static void sdl_free_displaysurface(DisplaySurface *surface)
219 allocator = 0;
220 if (surface == NULL)
221 return;
223 if (surface->flags & QEMU_ALLOCATED_FLAG)
224 qemu_free(surface->data);
225 qemu_free(surface);
228 static DisplaySurface* sdl_resize_displaysurface(DisplaySurface *surface, int width, int height)
230 sdl_free_displaysurface(surface);
231 return sdl_create_displaysurface(width, height);
234 /* generic keyboard conversion */
236 #include "sdl_keysym.h"
238 static kbd_layout_t *kbd_layout = NULL;
240 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
242 int keysym;
243 /* workaround for X11+SDL bug with AltGR */
244 keysym = ev->keysym.sym;
245 if (keysym == 0 && ev->keysym.scancode == 113)
246 keysym = SDLK_MODE;
247 /* For Japanese key '\' and '|' */
248 if (keysym == 92 && ev->keysym.scancode == 133) {
249 keysym = 0xa5;
251 return keysym2scancode(kbd_layout, keysym);
254 /* specific keyboard conversions from scan codes */
256 #if defined(_WIN32)
258 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
260 return ev->keysym.scancode;
263 #else
265 #if defined(SDL_VIDEO_DRIVER_X11)
266 #include <X11/XKBlib.h>
268 static int check_for_evdev(void)
270 SDL_SysWMinfo info;
271 XkbDescPtr desc = NULL;
272 int has_evdev = 0;
273 char *keycodes = NULL;
275 SDL_VERSION(&info.version);
276 if (!SDL_GetWMInfo(&info)) {
277 return 0;
279 desc = XkbGetKeyboard(info.info.x11.display,
280 XkbGBN_AllComponentsMask,
281 XkbUseCoreKbd);
282 if (desc && desc->names) {
283 keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
284 if (keycodes == NULL) {
285 fprintf(stderr, "could not lookup keycode name\n");
286 } else if (strstart(keycodes, "evdev", NULL)) {
287 has_evdev = 1;
288 } else if (!strstart(keycodes, "xfree86", NULL)) {
289 fprintf(stderr, "unknown keycodes `%s', please report to "
290 "qemu-devel@nongnu.org\n", keycodes);
294 if (desc) {
295 XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
297 if (keycodes) {
298 XFree(keycodes);
300 return has_evdev;
302 #else
303 static int check_for_evdev(void)
305 return 0;
307 #endif
309 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
311 int keycode;
312 static int has_evdev = -1;
314 if (has_evdev == -1)
315 has_evdev = check_for_evdev();
317 keycode = ev->keysym.scancode;
319 if (keycode < 9) {
320 keycode = 0;
321 } else if (keycode < 97) {
322 keycode -= 8; /* just an offset */
323 } else if (keycode < 158) {
324 /* use conversion table */
325 if (has_evdev)
326 keycode = translate_evdev_keycode(keycode - 97);
327 else
328 keycode = translate_xfree86_keycode(keycode - 97);
329 } else if (keycode == 208) { /* Hiragana_Katakana */
330 keycode = 0x70;
331 } else if (keycode == 211) { /* backslash */
332 keycode = 0x73;
333 } else {
334 keycode = 0;
336 return keycode;
339 #endif
341 static void reset_keys(void)
343 int i;
344 for(i = 0; i < 256; i++) {
345 if (modifiers_state[i]) {
346 if (i & 0x80)
347 kbd_put_keycode(0xe0);
348 kbd_put_keycode(i | 0x80);
349 modifiers_state[i] = 0;
354 static void sdl_process_key(SDL_KeyboardEvent *ev)
356 int keycode, v;
358 if (ev->keysym.sym == SDLK_PAUSE) {
359 /* specific case */
360 v = 0;
361 if (ev->type == SDL_KEYUP)
362 v |= 0x80;
363 kbd_put_keycode(0xe1);
364 kbd_put_keycode(0x1d | v);
365 kbd_put_keycode(0x45 | v);
366 return;
369 if (kbd_layout) {
370 keycode = sdl_keyevent_to_keycode_generic(ev);
371 } else {
372 keycode = sdl_keyevent_to_keycode(ev);
375 switch(keycode) {
376 case 0x00:
377 /* sent when leaving window: reset the modifiers state */
378 reset_keys();
379 return;
380 case 0x2a: /* Left Shift */
381 case 0x36: /* Right Shift */
382 case 0x1d: /* Left CTRL */
383 case 0x9d: /* Right CTRL */
384 case 0x38: /* Left ALT */
385 case 0xb8: /* Right ALT */
386 if (ev->type == SDL_KEYUP)
387 modifiers_state[keycode] = 0;
388 else
389 modifiers_state[keycode] = 1;
390 break;
391 case 0x45: /* num lock */
392 case 0x3a: /* caps lock */
393 /* SDL does not send the key up event, so we generate it */
394 kbd_put_keycode(keycode);
395 kbd_put_keycode(keycode | 0x80);
396 return;
399 /* now send the key code */
400 if (keycode & 0x80)
401 kbd_put_keycode(0xe0);
402 if (ev->type == SDL_KEYUP)
403 kbd_put_keycode(keycode | 0x80);
404 else
405 kbd_put_keycode(keycode & 0x7f);
408 static void sdl_update_caption(void)
410 char win_title[1024];
411 char icon_title[1024];
412 const char *status = "";
414 if (!vm_running)
415 status = " [Stopped]";
416 else if (gui_grab) {
417 if (alt_grab)
418 status = " - Press Ctrl-Alt-Shift to exit grab";
419 else if (ctrl_grab)
420 status = " - Press Right-Ctrl to exit grab";
421 else
422 status = " - Press Ctrl-Alt to exit grab";
425 if (qemu_name) {
426 snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status);
427 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
428 } else {
429 snprintf(win_title, sizeof(win_title), "QEMU%s", status);
430 snprintf(icon_title, sizeof(icon_title), "QEMU");
433 SDL_WM_SetCaption(win_title, icon_title);
436 static void sdl_hide_cursor(void)
438 if (!cursor_hide)
439 return;
441 if (kbd_mouse_is_absolute()) {
442 SDL_ShowCursor(1);
443 SDL_SetCursor(sdl_cursor_hidden);
444 } else {
445 SDL_ShowCursor(0);
449 static void sdl_show_cursor(void)
451 if (!cursor_hide)
452 return;
454 if (!kbd_mouse_is_absolute()) {
455 SDL_ShowCursor(1);
456 if (guest_cursor &&
457 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
458 SDL_SetCursor(guest_sprite);
459 else
460 SDL_SetCursor(sdl_cursor_normal);
464 static void sdl_grab_start(void)
466 if (guest_cursor) {
467 SDL_SetCursor(guest_sprite);
468 if (!kbd_mouse_is_absolute() && !absolute_enabled)
469 SDL_WarpMouse(guest_x, guest_y);
470 } else
471 sdl_hide_cursor();
473 if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
474 gui_grab = 1;
475 sdl_update_caption();
476 } else
477 sdl_show_cursor();
480 static void sdl_grab_end(void)
482 SDL_WM_GrabInput(SDL_GRAB_OFF);
483 gui_grab = 0;
484 sdl_show_cursor();
485 sdl_update_caption();
488 static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
490 int buttons;
491 buttons = 0;
492 if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
493 buttons |= MOUSE_EVENT_LBUTTON;
494 if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
495 buttons |= MOUSE_EVENT_RBUTTON;
496 if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
497 buttons |= MOUSE_EVENT_MBUTTON;
499 if (kbd_mouse_is_absolute()) {
500 if (!absolute_enabled) {
501 sdl_hide_cursor();
502 if (gui_grab) {
503 sdl_grab_end();
505 absolute_enabled = 1;
508 dx = x * 0x7FFF / (width - 1);
509 dy = y * 0x7FFF / (height - 1);
510 } else if (absolute_enabled) {
511 sdl_show_cursor();
512 absolute_enabled = 0;
513 } else if (guest_cursor) {
514 x -= guest_x;
515 y -= guest_y;
516 guest_x += x;
517 guest_y += y;
518 dx = x;
519 dy = y;
522 kbd_mouse_event(dx, dy, dz, buttons);
525 static void toggle_full_screen(DisplayState *ds)
527 gui_fullscreen = !gui_fullscreen;
528 if (gui_fullscreen) {
529 scaling_active = 0;
530 gui_saved_grab = gui_grab;
531 sdl_grab_start();
532 } else {
533 if (!gui_saved_grab)
534 sdl_grab_end();
536 vga_hw_invalidate();
537 vga_hw_update();
540 static void sdl_refresh(DisplayState *ds)
542 SDL_Event ev1, *ev = &ev1;
543 int mod_state;
544 int buttonstate = SDL_GetMouseState(NULL, NULL);
546 if (last_vm_running != vm_running) {
547 last_vm_running = vm_running;
548 sdl_update_caption();
551 vga_hw_update();
552 SDL_EnableUNICODE(!is_graphic_console());
554 while (SDL_PollEvent(ev)) {
555 switch (ev->type) {
556 case SDL_VIDEOEXPOSE:
557 sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
558 break;
559 case SDL_KEYDOWN:
560 case SDL_KEYUP:
561 if (ev->type == SDL_KEYDOWN) {
562 if (alt_grab) {
563 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
564 (gui_grab_code | KMOD_LSHIFT);
565 } else if (ctrl_grab) {
566 mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL;
567 } else {
568 mod_state = (SDL_GetModState() & gui_grab_code) ==
569 gui_grab_code;
571 gui_key_modifier_pressed = mod_state;
572 if (gui_key_modifier_pressed) {
573 int keycode;
574 keycode = sdl_keyevent_to_keycode(&ev->key);
575 switch(keycode) {
576 case 0x21: /* 'f' key on US keyboard */
577 toggle_full_screen(ds);
578 gui_keysym = 1;
579 break;
580 case 0x16: /* 'u' key on US keyboard */
581 scaling_active = 0;
582 sdl_resize(ds);
583 vga_hw_invalidate();
584 vga_hw_update();
585 break;
586 case 0x02 ... 0x0a: /* '1' to '9' keys */
587 /* Reset the modifiers sent to the current console */
588 reset_keys();
589 console_select(keycode - 0x02);
590 if (!is_graphic_console()) {
591 /* display grab if going to a text console */
592 if (gui_grab)
593 sdl_grab_end();
595 gui_keysym = 1;
596 break;
597 default:
598 break;
600 } else if (!is_graphic_console()) {
601 int keysym;
602 keysym = 0;
603 if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
604 switch(ev->key.keysym.sym) {
605 case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
606 case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
607 case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
608 case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
609 case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
610 case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
611 case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
612 case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
613 default: break;
615 } else {
616 switch(ev->key.keysym.sym) {
617 case SDLK_UP: keysym = QEMU_KEY_UP; break;
618 case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
619 case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
620 case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
621 case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
622 case SDLK_END: keysym = QEMU_KEY_END; break;
623 case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
624 case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
625 case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;
626 case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
627 default: break;
630 if (keysym) {
631 kbd_put_keysym(keysym);
632 } else if (ev->key.keysym.unicode != 0) {
633 kbd_put_keysym(ev->key.keysym.unicode);
636 } else if (ev->type == SDL_KEYUP) {
637 if (!alt_grab) {
638 mod_state = (ev->key.keysym.mod & gui_grab_code);
639 } else {
640 mod_state = (ev->key.keysym.mod &
641 (gui_grab_code | KMOD_LSHIFT));
643 if (!mod_state) {
644 if (gui_key_modifier_pressed) {
645 gui_key_modifier_pressed = 0;
646 if (gui_keysym == 0) {
647 /* exit/enter grab if pressing Ctrl-Alt */
648 if (!gui_grab) {
649 /* if the application is not active,
650 do not try to enter grab state. It
651 prevents
652 'SDL_WM_GrabInput(SDL_GRAB_ON)'
653 from blocking all the application
654 (SDL bug). */
655 if (SDL_GetAppState() & SDL_APPACTIVE)
656 sdl_grab_start();
657 } else {
658 sdl_grab_end();
660 /* SDL does not send back all the
661 modifiers key, so we must correct it */
662 reset_keys();
663 break;
665 gui_keysym = 0;
669 if (is_graphic_console() && !gui_keysym)
670 sdl_process_key(&ev->key);
671 break;
672 case SDL_QUIT:
673 if (!no_quit)
674 qemu_system_shutdown_request();
675 break;
676 case SDL_MOUSEMOTION:
677 if (gui_grab || kbd_mouse_is_absolute() ||
678 absolute_enabled) {
679 sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
680 ev->motion.x, ev->motion.y, ev->motion.state);
682 break;
683 case SDL_MOUSEBUTTONDOWN:
684 case SDL_MOUSEBUTTONUP:
686 SDL_MouseButtonEvent *bev = &ev->button;
687 if (!gui_grab && !kbd_mouse_is_absolute()) {
688 if (ev->type == SDL_MOUSEBUTTONDOWN &&
689 (bev->button == SDL_BUTTON_LEFT)) {
690 /* start grabbing all events */
691 sdl_grab_start();
693 } else {
694 int dz;
695 dz = 0;
696 if (ev->type == SDL_MOUSEBUTTONDOWN) {
697 buttonstate |= SDL_BUTTON(bev->button);
698 } else {
699 buttonstate &= ~SDL_BUTTON(bev->button);
701 #ifdef SDL_BUTTON_WHEELUP
702 if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
703 dz = -1;
704 } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
705 dz = 1;
707 #endif
708 sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
711 break;
712 case SDL_ACTIVEEVENT:
713 if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
714 !ev->active.gain && !gui_fullscreen_initial_grab) {
715 sdl_grab_end();
717 if (ev->active.state & SDL_APPACTIVE) {
718 if (ev->active.gain) {
719 /* Back to default interval */
720 dcl->gui_timer_interval = 0;
721 dcl->idle = 0;
722 } else {
723 /* Sleeping interval */
724 dcl->gui_timer_interval = 500;
725 dcl->idle = 1;
728 break;
729 case SDL_VIDEORESIZE:
731 SDL_ResizeEvent *rev = &ev->resize;
732 int bpp = real_screen->format->BitsPerPixel;
733 if (bpp != 16 && bpp != 32)
734 bpp = 32;
735 do_sdl_resize(rev->w, rev->h, bpp);
736 scaling_active = 1;
737 if (!is_buffer_shared(ds->surface)) {
738 ds->surface = qemu_resize_displaysurface(ds, ds_get_width(ds), ds_get_height(ds));
739 dpy_resize(ds);
741 vga_hw_invalidate();
742 vga_hw_update();
743 break;
745 default:
746 break;
751 static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
753 SDL_Rect dst = { x, y, w, h };
754 SDL_FillRect(real_screen, &dst, c);
757 static void sdl_mouse_warp(int x, int y, int on)
759 if (on) {
760 if (!guest_cursor)
761 sdl_show_cursor();
762 if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
763 SDL_SetCursor(guest_sprite);
764 if (!kbd_mouse_is_absolute() && !absolute_enabled)
765 SDL_WarpMouse(x, y);
767 } else if (gui_grab)
768 sdl_hide_cursor();
769 guest_cursor = on;
770 guest_x = x, guest_y = y;
773 static void sdl_mouse_define(int width, int height, int bpp,
774 int hot_x, int hot_y,
775 uint8_t *image, uint8_t *mask)
777 uint8_t sprite[256], *line;
778 int x, y, dst, bypl, src = 0;
779 if (guest_sprite)
780 SDL_FreeCursor(guest_sprite);
782 memset(sprite, 0, 256);
783 bypl = ((width * bpp + 31) >> 5) << 2;
784 for (y = 0, dst = 0; y < height; y ++, image += bypl) {
785 line = image;
786 for (x = 0; x < width; x ++, dst ++) {
787 switch (bpp) {
788 case 32:
789 src = *(line ++); src |= *(line ++); src |= *(line ++); line++;
790 break;
791 case 24:
792 src = *(line ++); src |= *(line ++); src |= *(line ++);
793 break;
794 case 16:
795 case 15:
796 src = *(line ++); src |= *(line ++);
797 break;
798 case 8:
799 src = *(line ++);
800 break;
801 case 4:
802 src = 0xf & (line[x >> 1] >> ((x & 1)) << 2);
803 break;
804 case 2:
805 src = 3 & (line[x >> 2] >> ((x & 3)) << 1);
806 break;
807 case 1:
808 src = 1 & (line[x >> 3] >> (x & 7));
809 break;
811 if (!src)
812 sprite[dst >> 3] |= (1 << (~dst & 7)) & mask[dst >> 3];
815 guest_sprite = SDL_CreateCursor(sprite, mask, width, height, hot_x, hot_y);
817 if (guest_cursor &&
818 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
819 SDL_SetCursor(guest_sprite);
822 static void sdl_cleanup(void)
824 if (guest_sprite)
825 SDL_FreeCursor(guest_sprite);
826 SDL_QuitSubSystem(SDL_INIT_VIDEO);
829 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
831 int flags;
832 uint8_t data = 0;
833 DisplayAllocator *da;
834 const SDL_VideoInfo *vi;
836 #if defined(__APPLE__)
837 /* always use generic keymaps */
838 if (!keyboard_layout)
839 keyboard_layout = "en-us";
840 #endif
841 if(keyboard_layout) {
842 kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
843 if (!kbd_layout)
844 exit(1);
847 if (no_frame)
848 gui_noframe = 1;
850 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
851 if (SDL_Init (flags)) {
852 fprintf(stderr, "Could not initialize SDL - exiting\n");
853 exit(1);
855 vi = SDL_GetVideoInfo();
856 host_format = *(vi->vfmt);
858 dcl = qemu_mallocz(sizeof(DisplayChangeListener));
859 dcl->dpy_update = sdl_update;
860 dcl->dpy_resize = sdl_resize;
861 dcl->dpy_refresh = sdl_refresh;
862 dcl->dpy_setdata = sdl_setdata;
863 dcl->dpy_fill = sdl_fill;
864 ds->mouse_set = sdl_mouse_warp;
865 ds->cursor_define = sdl_mouse_define;
866 register_displaychangelistener(ds, dcl);
868 da = qemu_mallocz(sizeof(DisplayAllocator));
869 da->create_displaysurface = sdl_create_displaysurface;
870 da->resize_displaysurface = sdl_resize_displaysurface;
871 da->free_displaysurface = sdl_free_displaysurface;
872 if (register_displayallocator(ds, da) == da) {
873 DisplaySurface *surf;
874 surf = sdl_create_displaysurface(ds_get_width(ds), ds_get_height(ds));
875 defaultallocator_free_displaysurface(ds->surface);
876 ds->surface = surf;
877 dpy_resize(ds);
880 sdl_update_caption();
881 SDL_EnableKeyRepeat(250, 50);
882 gui_grab = 0;
884 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
885 sdl_cursor_normal = SDL_GetCursor();
887 atexit(sdl_cleanup);
888 if (full_screen) {
889 gui_fullscreen = 1;
890 gui_fullscreen_initial_grab = 1;
891 sdl_grab_start();