Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2020-08-03' into staging
[qemu.git] / ui / sdl2.c
1 /*
2 * QEMU SDL display driver
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
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:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
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.
23 */
24 /* Ported SDL 1.2 code to 2.0 by Dave Airlie. */
25
26 #include "qemu/osdep.h"
27 #include "qemu/module.h"
28 #include "ui/console.h"
29 #include "ui/input.h"
30 #include "ui/sdl2.h"
31 #include "sysemu/runstate.h"
32 #include "sysemu/sysemu.h"
33
34 static int sdl2_num_outputs;
35 static struct sdl2_console *sdl2_console;
36
37 static SDL_Surface *guest_sprite_surface;
38 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
39
40 static int gui_saved_grab;
41 static int gui_fullscreen;
42 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
43 static SDL_Cursor *sdl_cursor_normal;
44 static SDL_Cursor *sdl_cursor_hidden;
45 static int absolute_enabled;
46 static int guest_cursor;
47 static int guest_x, guest_y;
48 static SDL_Cursor *guest_sprite;
49 static Notifier mouse_mode_notifier;
50
51 #define SDL2_REFRESH_INTERVAL_BUSY 10
52 #define SDL2_MAX_IDLE_COUNT (2 * GUI_REFRESH_INTERVAL_DEFAULT \
53 / SDL2_REFRESH_INTERVAL_BUSY + 1)
54
55 static void sdl_update_caption(struct sdl2_console *scon);
56
57 static struct sdl2_console *get_scon_from_window(uint32_t window_id)
58 {
59 int i;
60 for (i = 0; i < sdl2_num_outputs; i++) {
61 if (sdl2_console[i].real_window == SDL_GetWindowFromID(window_id)) {
62 return &sdl2_console[i];
63 }
64 }
65 return NULL;
66 }
67
68 void sdl2_window_create(struct sdl2_console *scon)
69 {
70 int flags = 0;
71
72 if (!scon->surface) {
73 return;
74 }
75 assert(!scon->real_window);
76
77 if (gui_fullscreen) {
78 flags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
79 } else {
80 flags |= SDL_WINDOW_RESIZABLE;
81 }
82 if (scon->hidden) {
83 flags |= SDL_WINDOW_HIDDEN;
84 }
85
86 scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED,
87 SDL_WINDOWPOS_UNDEFINED,
88 surface_width(scon->surface),
89 surface_height(scon->surface),
90 flags);
91 scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0);
92 if (scon->opengl) {
93 scon->winctx = SDL_GL_GetCurrentContext();
94 }
95 sdl_update_caption(scon);
96 }
97
98 void sdl2_window_destroy(struct sdl2_console *scon)
99 {
100 if (!scon->real_window) {
101 return;
102 }
103
104 SDL_DestroyRenderer(scon->real_renderer);
105 scon->real_renderer = NULL;
106 SDL_DestroyWindow(scon->real_window);
107 scon->real_window = NULL;
108 }
109
110 void sdl2_window_resize(struct sdl2_console *scon)
111 {
112 if (!scon->real_window) {
113 return;
114 }
115
116 SDL_SetWindowSize(scon->real_window,
117 surface_width(scon->surface),
118 surface_height(scon->surface));
119 }
120
121 static void sdl2_redraw(struct sdl2_console *scon)
122 {
123 if (scon->opengl) {
124 #ifdef CONFIG_OPENGL
125 sdl2_gl_redraw(scon);
126 #endif
127 } else {
128 sdl2_2d_redraw(scon);
129 }
130 }
131
132 static void sdl_update_caption(struct sdl2_console *scon)
133 {
134 char win_title[1024];
135 char icon_title[1024];
136 const char *status = "";
137
138 if (!runstate_is_running()) {
139 status = " [Stopped]";
140 } else if (gui_grab) {
141 if (alt_grab) {
142 status = " - Press Ctrl-Alt-Shift-G to exit grab";
143 } else if (ctrl_grab) {
144 status = " - Press Right-Ctrl-G to exit grab";
145 } else {
146 status = " - Press Ctrl-Alt-G to exit grab";
147 }
148 }
149
150 if (qemu_name) {
151 snprintf(win_title, sizeof(win_title), "QEMU (%s-%d)%s", qemu_name,
152 scon->idx, status);
153 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
154 } else {
155 snprintf(win_title, sizeof(win_title), "QEMU%s", status);
156 snprintf(icon_title, sizeof(icon_title), "QEMU");
157 }
158
159 if (scon->real_window) {
160 SDL_SetWindowTitle(scon->real_window, win_title);
161 }
162 }
163
164 static void sdl_hide_cursor(void)
165 {
166 if (!cursor_hide) {
167 return;
168 }
169
170 SDL_ShowCursor(SDL_DISABLE);
171 SDL_SetCursor(sdl_cursor_hidden);
172
173 if (!qemu_input_is_absolute()) {
174 SDL_SetRelativeMouseMode(SDL_TRUE);
175 }
176 }
177
178 static void sdl_show_cursor(void)
179 {
180 if (!cursor_hide) {
181 return;
182 }
183
184 if (!qemu_input_is_absolute()) {
185 SDL_SetRelativeMouseMode(SDL_FALSE);
186 }
187
188 if (guest_cursor &&
189 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) {
190 SDL_SetCursor(guest_sprite);
191 } else {
192 SDL_SetCursor(sdl_cursor_normal);
193 }
194
195 SDL_ShowCursor(SDL_ENABLE);
196 }
197
198 static void sdl_grab_start(struct sdl2_console *scon)
199 {
200 QemuConsole *con = scon ? scon->dcl.con : NULL;
201
202 if (!con || !qemu_console_is_graphic(con)) {
203 return;
204 }
205 /*
206 * If the application is not active, do not try to enter grab state. This
207 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the
208 * application (SDL bug).
209 */
210 if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) {
211 return;
212 }
213 if (guest_cursor) {
214 SDL_SetCursor(guest_sprite);
215 if (!qemu_input_is_absolute() && !absolute_enabled) {
216 SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y);
217 }
218 } else {
219 sdl_hide_cursor();
220 }
221 SDL_SetWindowGrab(scon->real_window, SDL_TRUE);
222 gui_grab = 1;
223 sdl_update_caption(scon);
224 }
225
226 static void sdl_grab_end(struct sdl2_console *scon)
227 {
228 SDL_SetWindowGrab(scon->real_window, SDL_FALSE);
229 gui_grab = 0;
230 sdl_show_cursor();
231 sdl_update_caption(scon);
232 }
233
234 static void absolute_mouse_grab(struct sdl2_console *scon)
235 {
236 int mouse_x, mouse_y;
237 int scr_w, scr_h;
238 SDL_GetMouseState(&mouse_x, &mouse_y);
239 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h);
240 if (mouse_x > 0 && mouse_x < scr_w - 1 &&
241 mouse_y > 0 && mouse_y < scr_h - 1) {
242 sdl_grab_start(scon);
243 }
244 }
245
246 static void sdl_mouse_mode_change(Notifier *notify, void *data)
247 {
248 if (qemu_input_is_absolute()) {
249 if (!absolute_enabled) {
250 absolute_enabled = 1;
251 SDL_SetRelativeMouseMode(SDL_FALSE);
252 absolute_mouse_grab(&sdl2_console[0]);
253 }
254 } else if (absolute_enabled) {
255 if (!gui_fullscreen) {
256 sdl_grab_end(&sdl2_console[0]);
257 }
258 absolute_enabled = 0;
259 }
260 }
261
262 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy,
263 int x, int y, int state)
264 {
265 static uint32_t bmap[INPUT_BUTTON__MAX] = {
266 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT),
267 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE),
268 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT),
269 };
270 static uint32_t prev_state;
271
272 if (prev_state != state) {
273 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state);
274 prev_state = state;
275 }
276
277 if (qemu_input_is_absolute()) {
278 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X,
279 x, 0, surface_width(scon->surface));
280 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y,
281 y, 0, surface_height(scon->surface));
282 } else {
283 if (guest_cursor) {
284 x -= guest_x;
285 y -= guest_y;
286 guest_x += x;
287 guest_y += y;
288 dx = x;
289 dy = y;
290 }
291 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx);
292 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy);
293 }
294 qemu_input_event_sync();
295 }
296
297 static void toggle_full_screen(struct sdl2_console *scon)
298 {
299 gui_fullscreen = !gui_fullscreen;
300 if (gui_fullscreen) {
301 SDL_SetWindowFullscreen(scon->real_window,
302 SDL_WINDOW_FULLSCREEN_DESKTOP);
303 gui_saved_grab = gui_grab;
304 sdl_grab_start(scon);
305 } else {
306 if (!gui_saved_grab) {
307 sdl_grab_end(scon);
308 }
309 SDL_SetWindowFullscreen(scon->real_window, 0);
310 }
311 sdl2_redraw(scon);
312 }
313
314 static int get_mod_state(void)
315 {
316 SDL_Keymod mod = SDL_GetModState();
317
318 if (alt_grab) {
319 return (mod & (gui_grab_code | KMOD_LSHIFT)) ==
320 (gui_grab_code | KMOD_LSHIFT);
321 } else if (ctrl_grab) {
322 return (mod & KMOD_RCTRL) == KMOD_RCTRL;
323 } else {
324 return (mod & gui_grab_code) == gui_grab_code;
325 }
326 }
327
328 static void handle_keydown(SDL_Event *ev)
329 {
330 int win;
331 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID);
332 int gui_key_modifier_pressed = get_mod_state();
333 int gui_keysym = 0;
334
335 if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) {
336 switch (ev->key.keysym.scancode) {
337 case SDL_SCANCODE_2:
338 case SDL_SCANCODE_3:
339 case SDL_SCANCODE_4:
340 case SDL_SCANCODE_5:
341 case SDL_SCANCODE_6:
342 case SDL_SCANCODE_7:
343 case SDL_SCANCODE_8:
344 case SDL_SCANCODE_9:
345 if (gui_grab) {
346 sdl_grab_end(scon);
347 }
348
349 win = ev->key.keysym.scancode - SDL_SCANCODE_1;
350 if (win < sdl2_num_outputs) {
351 sdl2_console[win].hidden = !sdl2_console[win].hidden;
352 if (sdl2_console[win].real_window) {
353 if (sdl2_console[win].hidden) {
354 SDL_HideWindow(sdl2_console[win].real_window);
355 } else {
356 SDL_ShowWindow(sdl2_console[win].real_window);
357 }
358 }
359 gui_keysym = 1;
360 }
361 break;
362 case SDL_SCANCODE_F:
363 toggle_full_screen(scon);
364 gui_keysym = 1;
365 break;
366 case SDL_SCANCODE_G:
367 gui_keysym = 1;
368 if (!gui_grab) {
369 sdl_grab_start(scon);
370 } else if (!gui_fullscreen) {
371 sdl_grab_end(scon);
372 }
373 break;
374 case SDL_SCANCODE_U:
375 sdl2_window_resize(scon);
376 if (!scon->opengl) {
377 /* re-create scon->texture */
378 sdl2_2d_switch(&scon->dcl, scon->surface);
379 }
380 gui_keysym = 1;
381 break;
382 #if 0
383 case SDL_SCANCODE_KP_PLUS:
384 case SDL_SCANCODE_KP_MINUS:
385 if (!gui_fullscreen) {
386 int scr_w, scr_h;
387 int width, height;
388 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h);
389
390 width = MAX(scr_w + (ev->key.keysym.scancode ==
391 SDL_SCANCODE_KP_PLUS ? 50 : -50),
392 160);
393 height = (surface_height(scon->surface) * width) /
394 surface_width(scon->surface);
395 fprintf(stderr, "%s: scale to %dx%d\n",
396 __func__, width, height);
397 sdl_scale(scon, width, height);
398 sdl2_redraw(scon);
399 gui_keysym = 1;
400 }
401 #endif
402 default:
403 break;
404 }
405 }
406 if (!gui_keysym) {
407 sdl2_process_key(scon, &ev->key);
408 }
409 }
410
411 static void handle_keyup(SDL_Event *ev)
412 {
413 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID);
414
415 scon->ignore_hotkeys = false;
416 sdl2_process_key(scon, &ev->key);
417 }
418
419 static void handle_textinput(SDL_Event *ev)
420 {
421 struct sdl2_console *scon = get_scon_from_window(ev->text.windowID);
422 QemuConsole *con = scon ? scon->dcl.con : NULL;
423
424 if (qemu_console_is_graphic(con)) {
425 return;
426 }
427 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text));
428 }
429
430 static void handle_mousemotion(SDL_Event *ev)
431 {
432 int max_x, max_y;
433 struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID);
434
435 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) {
436 return;
437 }
438
439 if (qemu_input_is_absolute() || absolute_enabled) {
440 int scr_w, scr_h;
441 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h);
442 max_x = scr_w - 1;
443 max_y = scr_h - 1;
444 if (gui_grab && !gui_fullscreen
445 && (ev->motion.x == 0 || ev->motion.y == 0 ||
446 ev->motion.x == max_x || ev->motion.y == max_y)) {
447 sdl_grab_end(scon);
448 }
449 if (!gui_grab &&
450 (ev->motion.x > 0 && ev->motion.x < max_x &&
451 ev->motion.y > 0 && ev->motion.y < max_y)) {
452 sdl_grab_start(scon);
453 }
454 }
455 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) {
456 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel,
457 ev->motion.x, ev->motion.y, ev->motion.state);
458 }
459 }
460
461 static void handle_mousebutton(SDL_Event *ev)
462 {
463 int buttonstate = SDL_GetMouseState(NULL, NULL);
464 SDL_MouseButtonEvent *bev;
465 struct sdl2_console *scon = get_scon_from_window(ev->button.windowID);
466
467 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) {
468 return;
469 }
470
471 bev = &ev->button;
472 if (!gui_grab && !qemu_input_is_absolute()) {
473 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) {
474 /* start grabbing all events */
475 sdl_grab_start(scon);
476 }
477 } else {
478 if (ev->type == SDL_MOUSEBUTTONDOWN) {
479 buttonstate |= SDL_BUTTON(bev->button);
480 } else {
481 buttonstate &= ~SDL_BUTTON(bev->button);
482 }
483 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate);
484 }
485 }
486
487 static void handle_mousewheel(SDL_Event *ev)
488 {
489 struct sdl2_console *scon = get_scon_from_window(ev->wheel.windowID);
490 SDL_MouseWheelEvent *wev = &ev->wheel;
491 InputButton btn;
492
493 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) {
494 return;
495 }
496
497 if (wev->y > 0) {
498 btn = INPUT_BUTTON_WHEEL_UP;
499 } else if (wev->y < 0) {
500 btn = INPUT_BUTTON_WHEEL_DOWN;
501 } else {
502 return;
503 }
504
505 qemu_input_queue_btn(scon->dcl.con, btn, true);
506 qemu_input_event_sync();
507 qemu_input_queue_btn(scon->dcl.con, btn, false);
508 qemu_input_event_sync();
509 }
510
511 static void handle_windowevent(SDL_Event *ev)
512 {
513 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID);
514 bool allow_close = true;
515
516 if (!scon) {
517 return;
518 }
519
520 switch (ev->window.event) {
521 case SDL_WINDOWEVENT_RESIZED:
522 {
523 QemuUIInfo info;
524 memset(&info, 0, sizeof(info));
525 info.width = ev->window.data1;
526 info.height = ev->window.data2;
527 dpy_set_ui_info(scon->dcl.con, &info);
528 }
529 sdl2_redraw(scon);
530 break;
531 case SDL_WINDOWEVENT_EXPOSED:
532 sdl2_redraw(scon);
533 break;
534 case SDL_WINDOWEVENT_FOCUS_GAINED:
535 case SDL_WINDOWEVENT_ENTER:
536 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) {
537 absolute_mouse_grab(scon);
538 }
539 /* If a new console window opened using a hotkey receives the
540 * focus, SDL sends another KEYDOWN event to the new window,
541 * closing the console window immediately after.
542 *
543 * Work around this by ignoring further hotkey events until a
544 * key is released.
545 */
546 scon->ignore_hotkeys = get_mod_state();
547 break;
548 case SDL_WINDOWEVENT_FOCUS_LOST:
549 if (gui_grab && !gui_fullscreen) {
550 sdl_grab_end(scon);
551 }
552 break;
553 case SDL_WINDOWEVENT_RESTORED:
554 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT);
555 break;
556 case SDL_WINDOWEVENT_MINIMIZED:
557 update_displaychangelistener(&scon->dcl, 500);
558 break;
559 case SDL_WINDOWEVENT_CLOSE:
560 if (qemu_console_is_graphic(scon->dcl.con)) {
561 if (scon->opts->has_window_close && !scon->opts->window_close) {
562 allow_close = false;
563 }
564 if (allow_close) {
565 no_shutdown = 0;
566 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI);
567 }
568 } else {
569 SDL_HideWindow(scon->real_window);
570 scon->hidden = true;
571 }
572 break;
573 case SDL_WINDOWEVENT_SHOWN:
574 scon->hidden = false;
575 break;
576 case SDL_WINDOWEVENT_HIDDEN:
577 scon->hidden = true;
578 break;
579 }
580 }
581
582 void sdl2_poll_events(struct sdl2_console *scon)
583 {
584 SDL_Event ev1, *ev = &ev1;
585 bool allow_close = true;
586 int idle = 1;
587
588 if (scon->last_vm_running != runstate_is_running()) {
589 scon->last_vm_running = runstate_is_running();
590 sdl_update_caption(scon);
591 }
592
593 while (SDL_PollEvent(ev)) {
594 switch (ev->type) {
595 case SDL_KEYDOWN:
596 idle = 0;
597 handle_keydown(ev);
598 break;
599 case SDL_KEYUP:
600 idle = 0;
601 handle_keyup(ev);
602 break;
603 case SDL_TEXTINPUT:
604 idle = 0;
605 handle_textinput(ev);
606 break;
607 case SDL_QUIT:
608 if (scon->opts->has_window_close && !scon->opts->window_close) {
609 allow_close = false;
610 }
611 if (allow_close) {
612 no_shutdown = 0;
613 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI);
614 }
615 break;
616 case SDL_MOUSEMOTION:
617 idle = 0;
618 handle_mousemotion(ev);
619 break;
620 case SDL_MOUSEBUTTONDOWN:
621 case SDL_MOUSEBUTTONUP:
622 idle = 0;
623 handle_mousebutton(ev);
624 break;
625 case SDL_MOUSEWHEEL:
626 idle = 0;
627 handle_mousewheel(ev);
628 break;
629 case SDL_WINDOWEVENT:
630 handle_windowevent(ev);
631 break;
632 default:
633 break;
634 }
635 }
636
637 if (idle) {
638 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) {
639 scon->idle_counter++;
640 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) {
641 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT;
642 }
643 }
644 } else {
645 scon->idle_counter = 0;
646 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY;
647 }
648 }
649
650 static void sdl_mouse_warp(DisplayChangeListener *dcl,
651 int x, int y, int on)
652 {
653 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
654
655 if (!qemu_console_is_graphic(scon->dcl.con)) {
656 return;
657 }
658
659 if (on) {
660 if (!guest_cursor) {
661 sdl_show_cursor();
662 }
663 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) {
664 SDL_SetCursor(guest_sprite);
665 if (!qemu_input_is_absolute() && !absolute_enabled) {
666 SDL_WarpMouseInWindow(scon->real_window, x, y);
667 }
668 }
669 } else if (gui_grab) {
670 sdl_hide_cursor();
671 }
672 guest_cursor = on;
673 guest_x = x, guest_y = y;
674 }
675
676 static void sdl_mouse_define(DisplayChangeListener *dcl,
677 QEMUCursor *c)
678 {
679
680 if (guest_sprite) {
681 SDL_FreeCursor(guest_sprite);
682 }
683
684 if (guest_sprite_surface) {
685 SDL_FreeSurface(guest_sprite_surface);
686 }
687
688 guest_sprite_surface =
689 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4,
690 0xff0000, 0x00ff00, 0xff, 0xff000000);
691
692 if (!guest_sprite_surface) {
693 fprintf(stderr, "Failed to make rgb surface from %p\n", c);
694 return;
695 }
696 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface,
697 c->hot_x, c->hot_y);
698 if (!guest_sprite) {
699 fprintf(stderr, "Failed to make color cursor from %p\n", c);
700 return;
701 }
702 if (guest_cursor &&
703 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) {
704 SDL_SetCursor(guest_sprite);
705 }
706 }
707
708 static void sdl_cleanup(void)
709 {
710 if (guest_sprite) {
711 SDL_FreeCursor(guest_sprite);
712 }
713 SDL_QuitSubSystem(SDL_INIT_VIDEO);
714 }
715
716 static const DisplayChangeListenerOps dcl_2d_ops = {
717 .dpy_name = "sdl2-2d",
718 .dpy_gfx_update = sdl2_2d_update,
719 .dpy_gfx_switch = sdl2_2d_switch,
720 .dpy_gfx_check_format = sdl2_2d_check_format,
721 .dpy_refresh = sdl2_2d_refresh,
722 .dpy_mouse_set = sdl_mouse_warp,
723 .dpy_cursor_define = sdl_mouse_define,
724 };
725
726 #ifdef CONFIG_OPENGL
727 static const DisplayChangeListenerOps dcl_gl_ops = {
728 .dpy_name = "sdl2-gl",
729 .dpy_gfx_update = sdl2_gl_update,
730 .dpy_gfx_switch = sdl2_gl_switch,
731 .dpy_gfx_check_format = console_gl_check_format,
732 .dpy_refresh = sdl2_gl_refresh,
733 .dpy_mouse_set = sdl_mouse_warp,
734 .dpy_cursor_define = sdl_mouse_define,
735
736 .dpy_gl_ctx_create = sdl2_gl_create_context,
737 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context,
738 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current,
739 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context,
740 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable,
741 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture,
742 .dpy_gl_update = sdl2_gl_scanout_flush,
743 };
744 #endif
745
746 static void sdl2_display_early_init(DisplayOptions *o)
747 {
748 assert(o->type == DISPLAY_TYPE_SDL);
749 if (o->has_gl && o->gl) {
750 #ifdef CONFIG_OPENGL
751 display_opengl = 1;
752 #endif
753 }
754 }
755
756 static void sdl2_display_init(DisplayState *ds, DisplayOptions *o)
757 {
758 uint8_t data = 0;
759 int i;
760 SDL_SysWMinfo info;
761 SDL_Surface *icon = NULL;
762
763 assert(o->type == DISPLAY_TYPE_SDL);
764
765 #ifdef __linux__
766 /* on Linux, SDL may use fbcon|directfb|svgalib when run without
767 * accessible $DISPLAY to open X11 window. This is often the case
768 * when qemu is run using sudo. But in this case, and when actually
769 * run in X11 environment, SDL fights with X11 for the video card,
770 * making current display unavailable, often until reboot.
771 * So make x11 the default SDL video driver if this variable is unset.
772 * This is a bit hackish but saves us from bigger problem.
773 * Maybe it's a good idea to fix this in SDL instead.
774 */
775 setenv("SDL_VIDEODRIVER", "x11", 0);
776 #endif
777
778 if (SDL_Init(SDL_INIT_VIDEO)) {
779 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
780 SDL_GetError());
781 exit(1);
782 }
783 #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */
784 SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0");
785 #endif
786 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1");
787 memset(&info, 0, sizeof(info));
788 SDL_VERSION(&info.version);
789
790 gui_fullscreen = o->has_full_screen && o->full_screen;
791
792 for (i = 0;; i++) {
793 QemuConsole *con = qemu_console_lookup_by_index(i);
794 if (!con) {
795 break;
796 }
797 }
798 sdl2_num_outputs = i;
799 if (sdl2_num_outputs == 0) {
800 return;
801 }
802 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs);
803 for (i = 0; i < sdl2_num_outputs; i++) {
804 QemuConsole *con = qemu_console_lookup_by_index(i);
805 assert(con != NULL);
806 if (!qemu_console_is_graphic(con) &&
807 qemu_console_get_index(con) != 0) {
808 sdl2_console[i].hidden = true;
809 }
810 sdl2_console[i].idx = i;
811 sdl2_console[i].opts = o;
812 #ifdef CONFIG_OPENGL
813 sdl2_console[i].opengl = display_opengl;
814 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops;
815 #else
816 sdl2_console[i].opengl = 0;
817 sdl2_console[i].dcl.ops = &dcl_2d_ops;
818 #endif
819 sdl2_console[i].dcl.con = con;
820 sdl2_console[i].kbd = qkbd_state_init(con);
821 register_displaychangelistener(&sdl2_console[i].dcl);
822
823 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11)
824 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) {
825 #if defined(SDL_VIDEO_DRIVER_WINDOWS)
826 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window);
827 #elif defined(SDL_VIDEO_DRIVER_X11)
828 qemu_console_set_window_id(con, info.info.x11.window);
829 #endif
830 }
831 #endif
832 }
833
834 #ifdef CONFIG_SDL_IMAGE
835 icon = IMG_Load(CONFIG_QEMU_ICONDIR "/hicolor/128x128/apps/qemu.png");
836 #else
837 /* Load a 32x32x4 image. White pixels are transparent. */
838 icon = SDL_LoadBMP(CONFIG_QEMU_ICONDIR "/hicolor/32x32/apps/qemu.bmp");
839 if (icon) {
840 uint32_t colorkey = SDL_MapRGB(icon->format, 255, 255, 255);
841 SDL_SetColorKey(icon, SDL_TRUE, colorkey);
842 }
843 #endif
844 if (icon) {
845 SDL_SetWindowIcon(sdl2_console[0].real_window, icon);
846 }
847
848 gui_grab = 0;
849 if (gui_fullscreen) {
850 sdl_grab_start(0);
851 }
852
853 mouse_mode_notifier.notify = sdl_mouse_mode_change;
854 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
855
856 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
857 sdl_cursor_normal = SDL_GetCursor();
858
859 atexit(sdl_cleanup);
860 }
861
862 static QemuDisplay qemu_display_sdl2 = {
863 .type = DISPLAY_TYPE_SDL,
864 .early_init = sdl2_display_early_init,
865 .init = sdl2_display_init,
866 };
867
868 static void register_sdl1(void)
869 {
870 qemu_display_register(&qemu_display_sdl2);
871 }
872
873 type_init(register_sdl1);