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 "qemu/cutils.h"
29 #include "ui/console.h"
30 #include "ui/input.h"
31 #include "ui/sdl2.h"
32 #include "system/runstate.h"
33 #include "system/runstate-action.h"
34 #include "system/system.h"
35 #include "qemu/log.h"
36 #include "qemu-main.h"
37
38 static int sdl2_num_outputs;
39 static struct sdl2_console *sdl2_console;
40
41 static SDL_Surface *guest_sprite_surface;
42 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
43 static bool alt_grab;
44 static bool ctrl_grab;
45
46 static int gui_saved_grab;
47 static int gui_fullscreen;
48 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
49 static SDL_Cursor *sdl_cursor_normal;
50 static SDL_Cursor *sdl_cursor_hidden;
51 static int absolute_enabled;
52 static bool guest_cursor;
53 static int guest_x, guest_y;
54 static SDL_Cursor *guest_sprite;
55 static Notifier mouse_mode_notifier;
56
57 #define SDL2_REFRESH_INTERVAL_BUSY 10
58 #define SDL2_MAX_IDLE_COUNT (2 * GUI_REFRESH_INTERVAL_DEFAULT \
59 / SDL2_REFRESH_INTERVAL_BUSY + 1)
60
61 /* introduced in SDL 2.0.10 */
62 #ifndef SDL_HINT_RENDER_BATCHING
63 #define SDL_HINT_RENDER_BATCHING "SDL_RENDER_BATCHING"
64 #endif
65
66 static void sdl_update_caption(struct sdl2_console *scon);
67
get_scon_from_window(uint32_t window_id)68 static struct sdl2_console *get_scon_from_window(uint32_t window_id)
69 {
70 int i;
71 for (i = 0; i < sdl2_num_outputs; i++) {
72 if (sdl2_console[i].real_window == SDL_GetWindowFromID(window_id)) {
73 return &sdl2_console[i];
74 }
75 }
76 return NULL;
77 }
78
sdl2_window_create(struct sdl2_console * scon)79 void sdl2_window_create(struct sdl2_console *scon)
80 {
81 int flags = 0;
82
83 if (!scon->surface) {
84 return;
85 }
86 assert(!scon->real_window);
87
88 if (gui_fullscreen) {
89 flags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
90 } else {
91 flags |= SDL_WINDOW_RESIZABLE;
92 }
93 if (scon->hidden) {
94 flags |= SDL_WINDOW_HIDDEN;
95 }
96 #ifdef CONFIG_OPENGL
97 if (scon->opengl) {
98 flags |= SDL_WINDOW_OPENGL;
99 }
100 #endif
101
102 scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED,
103 SDL_WINDOWPOS_UNDEFINED,
104 surface_width(scon->surface),
105 surface_height(scon->surface),
106 flags);
107 if (scon->opengl) {
108 const char *driver = "opengl";
109
110 if (scon->opts->gl == DISPLAY_GL_MODE_ES) {
111 driver = "opengles2";
112 }
113
114 SDL_SetHint(SDL_HINT_RENDER_DRIVER, driver);
115 SDL_SetHint(SDL_HINT_RENDER_BATCHING, "1");
116
117 scon->winctx = SDL_GL_CreateContext(scon->real_window);
118 SDL_GL_SetSwapInterval(0);
119 } else {
120 /* The SDL renderer is only used by sdl2-2D, when OpenGL is disabled */
121 scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0);
122 }
123 sdl_update_caption(scon);
124 }
125
sdl2_window_destroy(struct sdl2_console * scon)126 void sdl2_window_destroy(struct sdl2_console *scon)
127 {
128 if (!scon->real_window) {
129 return;
130 }
131
132 if (scon->winctx) {
133 SDL_GL_DeleteContext(scon->winctx);
134 scon->winctx = NULL;
135 }
136 if (scon->real_renderer) {
137 SDL_DestroyRenderer(scon->real_renderer);
138 scon->real_renderer = NULL;
139 }
140 SDL_DestroyWindow(scon->real_window);
141 scon->real_window = NULL;
142 }
143
sdl2_window_resize(struct sdl2_console * scon)144 void sdl2_window_resize(struct sdl2_console *scon)
145 {
146 if (!scon->real_window) {
147 return;
148 }
149
150 SDL_SetWindowSize(scon->real_window,
151 surface_width(scon->surface),
152 surface_height(scon->surface));
153 }
154
sdl2_redraw(struct sdl2_console * scon)155 static void sdl2_redraw(struct sdl2_console *scon)
156 {
157 if (scon->opengl) {
158 #ifdef CONFIG_OPENGL
159 sdl2_gl_redraw(scon);
160 #endif
161 } else {
162 sdl2_2d_redraw(scon);
163 }
164 }
165
sdl_update_caption(struct sdl2_console * scon)166 static void sdl_update_caption(struct sdl2_console *scon)
167 {
168 char win_title[1024];
169 char icon_title[1024];
170 const char *status = "";
171
172 if (!runstate_is_running()) {
173 status = " [Stopped]";
174 } else if (gui_grab) {
175 if (alt_grab) {
176 #ifdef CONFIG_DARWIN
177 status = " - Press ⌃⌥⇧G to exit grab";
178 #else
179 status = " - Press Ctrl-Alt-Shift-G to exit grab";
180 #endif
181 } else if (ctrl_grab) {
182 status = " - Press Right-Ctrl-G to exit grab";
183 } else {
184 #ifdef CONFIG_DARWIN
185 status = " - Press ⌃⌥G to exit grab";
186 #else
187 status = " - Press Ctrl-Alt-G to exit grab";
188 #endif
189 }
190 }
191
192 if (qemu_name) {
193 snprintf(win_title, sizeof(win_title), "QEMU (%s-%d)%s", qemu_name,
194 scon->idx, status);
195 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
196 } else {
197 snprintf(win_title, sizeof(win_title), "QEMU%s", status);
198 snprintf(icon_title, sizeof(icon_title), "QEMU");
199 }
200
201 if (scon->real_window) {
202 SDL_SetWindowTitle(scon->real_window, win_title);
203 }
204 }
205
sdl_hide_cursor(struct sdl2_console * scon)206 static void sdl_hide_cursor(struct sdl2_console *scon)
207 {
208 if (scon->opts->has_show_cursor && scon->opts->show_cursor) {
209 return;
210 }
211
212 SDL_ShowCursor(SDL_DISABLE);
213 SDL_SetCursor(sdl_cursor_hidden);
214
215 if (!qemu_input_is_absolute(scon->dcl.con)) {
216 SDL_SetRelativeMouseMode(SDL_TRUE);
217 }
218 }
219
sdl_show_cursor(struct sdl2_console * scon)220 static void sdl_show_cursor(struct sdl2_console *scon)
221 {
222 if (scon->opts->has_show_cursor && scon->opts->show_cursor) {
223 return;
224 }
225
226 if (!qemu_input_is_absolute(scon->dcl.con)) {
227 SDL_SetRelativeMouseMode(SDL_FALSE);
228 }
229
230 if (guest_cursor &&
231 (gui_grab || qemu_input_is_absolute(scon->dcl.con) || absolute_enabled)) {
232 SDL_SetCursor(guest_sprite);
233 } else {
234 SDL_SetCursor(sdl_cursor_normal);
235 }
236
237 SDL_ShowCursor(SDL_ENABLE);
238 }
239
sdl_grab_start(struct sdl2_console * scon)240 static void sdl_grab_start(struct sdl2_console *scon)
241 {
242 QemuConsole *con = scon ? scon->dcl.con : NULL;
243
244 if (!con || !qemu_console_is_graphic(con)) {
245 return;
246 }
247 /*
248 * If the application is not active, do not try to enter grab state. This
249 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the
250 * application (SDL bug).
251 */
252 if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) {
253 return;
254 }
255 if (guest_cursor) {
256 SDL_SetCursor(guest_sprite);
257 if (!qemu_input_is_absolute(scon->dcl.con) && !absolute_enabled) {
258 SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y);
259 }
260 } else {
261 sdl_hide_cursor(scon);
262 }
263 SDL_SetWindowGrab(scon->real_window, SDL_TRUE);
264 gui_grab = 1;
265 sdl_update_caption(scon);
266 }
267
sdl_grab_end(struct sdl2_console * scon)268 static void sdl_grab_end(struct sdl2_console *scon)
269 {
270 SDL_SetWindowGrab(scon->real_window, SDL_FALSE);
271 gui_grab = 0;
272 sdl_show_cursor(scon);
273 sdl_update_caption(scon);
274 }
275
absolute_mouse_grab(struct sdl2_console * scon)276 static void absolute_mouse_grab(struct sdl2_console *scon)
277 {
278 int mouse_x, mouse_y;
279 int scr_w, scr_h;
280 SDL_GetMouseState(&mouse_x, &mouse_y);
281 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h);
282 if (mouse_x > 0 && mouse_x < scr_w - 1 &&
283 mouse_y > 0 && mouse_y < scr_h - 1) {
284 sdl_grab_start(scon);
285 }
286 }
287
sdl_mouse_mode_change(Notifier * notify,void * data)288 static void sdl_mouse_mode_change(Notifier *notify, void *data)
289 {
290 if (qemu_input_is_absolute(sdl2_console[0].dcl.con)) {
291 if (!absolute_enabled) {
292 absolute_enabled = 1;
293 SDL_SetRelativeMouseMode(SDL_FALSE);
294 absolute_mouse_grab(&sdl2_console[0]);
295 }
296 } else if (absolute_enabled) {
297 if (!gui_fullscreen) {
298 sdl_grab_end(&sdl2_console[0]);
299 }
300 absolute_enabled = 0;
301 }
302 }
303
sdl_send_mouse_event(struct sdl2_console * scon,int dx,int dy,int x,int y,int state)304 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy,
305 int x, int y, int state)
306 {
307 static uint32_t bmap[INPUT_BUTTON__MAX] = {
308 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT),
309 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE),
310 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT),
311 [INPUT_BUTTON_SIDE] = SDL_BUTTON(SDL_BUTTON_X1),
312 [INPUT_BUTTON_EXTRA] = SDL_BUTTON(SDL_BUTTON_X2)
313 };
314 static uint32_t prev_state;
315
316 if (prev_state != state) {
317 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state);
318 prev_state = state;
319 }
320
321 if (qemu_input_is_absolute(scon->dcl.con)) {
322 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X,
323 x, 0, surface_width(scon->surface));
324 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y,
325 y, 0, surface_height(scon->surface));
326 } else {
327 if (guest_cursor) {
328 x -= guest_x;
329 y -= guest_y;
330 guest_x += x;
331 guest_y += y;
332 dx = x;
333 dy = y;
334 }
335 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx);
336 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy);
337 }
338 qemu_input_event_sync();
339 }
340
toggle_full_screen(struct sdl2_console * scon)341 static void toggle_full_screen(struct sdl2_console *scon)
342 {
343 gui_fullscreen = !gui_fullscreen;
344 if (gui_fullscreen) {
345 SDL_SetWindowFullscreen(scon->real_window,
346 SDL_WINDOW_FULLSCREEN_DESKTOP);
347 gui_saved_grab = gui_grab;
348 sdl_grab_start(scon);
349 } else {
350 if (!gui_saved_grab) {
351 sdl_grab_end(scon);
352 }
353 SDL_SetWindowFullscreen(scon->real_window, 0);
354 }
355 sdl2_redraw(scon);
356 }
357
get_mod_state(void)358 static int get_mod_state(void)
359 {
360 SDL_Keymod mod = SDL_GetModState();
361
362 if (alt_grab) {
363 return (mod & (gui_grab_code | KMOD_LSHIFT)) ==
364 (gui_grab_code | KMOD_LSHIFT);
365 } else if (ctrl_grab) {
366 return (mod & KMOD_RCTRL) == KMOD_RCTRL;
367 } else {
368 return (mod & gui_grab_code) == gui_grab_code;
369 }
370 }
371
handle_keydown(SDL_Event * ev)372 static void handle_keydown(SDL_Event *ev)
373 {
374 int win;
375 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID);
376 int gui_key_modifier_pressed = get_mod_state();
377
378 if (!scon) {
379 return;
380 }
381
382 scon->gui_keysym = false;
383
384 if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) {
385 switch (ev->key.keysym.scancode) {
386 case SDL_SCANCODE_2:
387 case SDL_SCANCODE_3:
388 case SDL_SCANCODE_4:
389 case SDL_SCANCODE_5:
390 case SDL_SCANCODE_6:
391 case SDL_SCANCODE_7:
392 case SDL_SCANCODE_8:
393 case SDL_SCANCODE_9:
394 if (gui_grab) {
395 sdl_grab_end(scon);
396 }
397
398 win = ev->key.keysym.scancode - SDL_SCANCODE_1;
399 if (win < sdl2_num_outputs) {
400 sdl2_console[win].hidden = !sdl2_console[win].hidden;
401 if (sdl2_console[win].real_window) {
402 if (sdl2_console[win].hidden) {
403 SDL_HideWindow(sdl2_console[win].real_window);
404 } else {
405 SDL_ShowWindow(sdl2_console[win].real_window);
406 }
407 }
408 sdl2_release_modifiers(scon);
409 scon->gui_keysym = true;
410 }
411 break;
412 case SDL_SCANCODE_F:
413 toggle_full_screen(scon);
414 scon->gui_keysym = true;
415 break;
416 case SDL_SCANCODE_G:
417 scon->gui_keysym = true;
418 if (!gui_grab) {
419 sdl_grab_start(scon);
420 } else if (!gui_fullscreen) {
421 sdl_grab_end(scon);
422 }
423 break;
424 case SDL_SCANCODE_U:
425 sdl2_window_resize(scon);
426 if (!scon->opengl) {
427 /* re-create scon->texture */
428 sdl2_2d_switch(&scon->dcl, scon->surface);
429 }
430 scon->gui_keysym = true;
431 break;
432 #if 0
433 case SDL_SCANCODE_KP_PLUS:
434 case SDL_SCANCODE_KP_MINUS:
435 if (!gui_fullscreen) {
436 int scr_w, scr_h;
437 int width, height;
438 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h);
439
440 width = MAX(scr_w + (ev->key.keysym.scancode ==
441 SDL_SCANCODE_KP_PLUS ? 50 : -50),
442 160);
443 height = (surface_height(scon->surface) * width) /
444 surface_width(scon->surface);
445 fprintf(stderr, "%s: scale to %dx%d\n",
446 __func__, width, height);
447 sdl_scale(scon, width, height);
448 sdl2_redraw(scon);
449 scon->gui_keysym = true;
450 }
451 #endif
452 default:
453 break;
454 }
455 }
456 if (!scon->gui_keysym) {
457 sdl2_process_key(scon, &ev->key);
458 }
459 }
460
handle_keyup(SDL_Event * ev)461 static void handle_keyup(SDL_Event *ev)
462 {
463 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID);
464
465 if (!scon) {
466 return;
467 }
468
469 scon->ignore_hotkeys = false;
470 sdl2_process_key(scon, &ev->key);
471 }
472
handle_textinput(SDL_Event * ev)473 static void handle_textinput(SDL_Event *ev)
474 {
475 struct sdl2_console *scon = get_scon_from_window(ev->text.windowID);
476 QemuConsole *con = scon ? scon->dcl.con : NULL;
477
478 if (!con) {
479 return;
480 }
481
482 if (!scon->gui_keysym && QEMU_IS_TEXT_CONSOLE(con)) {
483 qemu_text_console_put_string(QEMU_TEXT_CONSOLE(con), ev->text.text, strlen(ev->text.text));
484 }
485 }
486
handle_mousemotion(SDL_Event * ev)487 static void handle_mousemotion(SDL_Event *ev)
488 {
489 int max_x, max_y;
490 struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID);
491 int scr_w, scr_h, surf_w, surf_h, x, y, dx, dy;
492
493 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) {
494 return;
495 }
496
497 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h);
498 if (qemu_input_is_absolute(scon->dcl.con) || absolute_enabled) {
499 max_x = scr_w - 1;
500 max_y = scr_h - 1;
501 if (gui_grab && !gui_fullscreen
502 && (ev->motion.x == 0 || ev->motion.y == 0 ||
503 ev->motion.x == max_x || ev->motion.y == max_y)) {
504 sdl_grab_end(scon);
505 }
506 if (!gui_grab &&
507 (ev->motion.x > 0 && ev->motion.x < max_x &&
508 ev->motion.y > 0 && ev->motion.y < max_y)) {
509 sdl_grab_start(scon);
510 }
511 }
512 surf_w = surface_width(scon->surface);
513 surf_h = surface_height(scon->surface);
514 x = (int64_t)ev->motion.x * surf_w / scr_w;
515 y = (int64_t)ev->motion.y * surf_h / scr_h;
516 dx = (int64_t)ev->motion.xrel * surf_w / scr_w;
517 dy = (int64_t)ev->motion.yrel * surf_h / scr_h;
518 if (gui_grab || qemu_input_is_absolute(scon->dcl.con) || absolute_enabled) {
519 sdl_send_mouse_event(scon, dx, dy, x, y, ev->motion.state);
520 }
521 }
522
handle_mousebutton(SDL_Event * ev)523 static void handle_mousebutton(SDL_Event *ev)
524 {
525 int buttonstate = SDL_GetMouseState(NULL, NULL);
526 SDL_MouseButtonEvent *bev;
527 struct sdl2_console *scon = get_scon_from_window(ev->button.windowID);
528 int scr_w, scr_h, x, y;
529
530 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) {
531 return;
532 }
533
534 bev = &ev->button;
535 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h);
536 x = (int64_t)bev->x * surface_width(scon->surface) / scr_w;
537 y = (int64_t)bev->y * surface_height(scon->surface) / scr_h;
538
539 if (!gui_grab && !qemu_input_is_absolute(scon->dcl.con)) {
540 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) {
541 /* start grabbing all events */
542 sdl_grab_start(scon);
543 }
544 } else {
545 if (ev->type == SDL_MOUSEBUTTONDOWN) {
546 buttonstate |= SDL_BUTTON(bev->button);
547 } else {
548 buttonstate &= ~SDL_BUTTON(bev->button);
549 }
550 sdl_send_mouse_event(scon, 0, 0, x, y, buttonstate);
551 }
552 }
553
handle_mousewheel(SDL_Event * ev)554 static void handle_mousewheel(SDL_Event *ev)
555 {
556 struct sdl2_console *scon = get_scon_from_window(ev->wheel.windowID);
557 SDL_MouseWheelEvent *wev = &ev->wheel;
558 InputButton btn;
559
560 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) {
561 return;
562 }
563
564 if (wev->y > 0) {
565 btn = INPUT_BUTTON_WHEEL_UP;
566 } else if (wev->y < 0) {
567 btn = INPUT_BUTTON_WHEEL_DOWN;
568 } else if (wev->x < 0) {
569 btn = INPUT_BUTTON_WHEEL_RIGHT;
570 } else if (wev->x > 0) {
571 btn = INPUT_BUTTON_WHEEL_LEFT;
572 } else {
573 return;
574 }
575
576 qemu_input_queue_btn(scon->dcl.con, btn, true);
577 qemu_input_event_sync();
578 qemu_input_queue_btn(scon->dcl.con, btn, false);
579 qemu_input_event_sync();
580 }
581
handle_windowevent(SDL_Event * ev)582 static void handle_windowevent(SDL_Event *ev)
583 {
584 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID);
585 bool allow_close = true;
586
587 if (!scon) {
588 return;
589 }
590
591 switch (ev->window.event) {
592 case SDL_WINDOWEVENT_RESIZED:
593 {
594 QemuUIInfo info;
595 memset(&info, 0, sizeof(info));
596 info.width = ev->window.data1;
597 info.height = ev->window.data2;
598 dpy_set_ui_info(scon->dcl.con, &info, true);
599 }
600 sdl2_redraw(scon);
601 break;
602 case SDL_WINDOWEVENT_EXPOSED:
603 sdl2_redraw(scon);
604 break;
605 case SDL_WINDOWEVENT_FOCUS_GAINED:
606 /* fall through */
607 case SDL_WINDOWEVENT_ENTER:
608 if (!gui_grab && (qemu_input_is_absolute(scon->dcl.con) || absolute_enabled)) {
609 absolute_mouse_grab(scon);
610 }
611 /* If a new console window opened using a hotkey receives the
612 * focus, SDL sends another KEYDOWN event to the new window,
613 * closing the console window immediately after.
614 *
615 * Work around this by ignoring further hotkey events until a
616 * key is released.
617 */
618 scon->ignore_hotkeys = get_mod_state();
619 break;
620 case SDL_WINDOWEVENT_FOCUS_LOST:
621 if (gui_grab && !gui_fullscreen) {
622 sdl_grab_end(scon);
623 }
624 break;
625 case SDL_WINDOWEVENT_RESTORED:
626 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT);
627 break;
628 case SDL_WINDOWEVENT_MINIMIZED:
629 update_displaychangelistener(&scon->dcl, 500);
630 break;
631 case SDL_WINDOWEVENT_CLOSE:
632 if (qemu_console_is_graphic(scon->dcl.con)) {
633 if (scon->opts->has_window_close && !scon->opts->window_close) {
634 allow_close = false;
635 }
636 if (allow_close) {
637 shutdown_action = SHUTDOWN_ACTION_POWEROFF;
638 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI);
639 }
640 } else {
641 SDL_HideWindow(scon->real_window);
642 scon->hidden = true;
643 }
644 break;
645 case SDL_WINDOWEVENT_SHOWN:
646 scon->hidden = false;
647 break;
648 case SDL_WINDOWEVENT_HIDDEN:
649 scon->hidden = true;
650 break;
651 }
652 }
653
sdl2_poll_events(struct sdl2_console * scon)654 void sdl2_poll_events(struct sdl2_console *scon)
655 {
656 SDL_Event ev1, *ev = &ev1;
657 bool allow_close = true;
658 int idle = 1;
659
660 if (scon->last_vm_running != runstate_is_running()) {
661 scon->last_vm_running = runstate_is_running();
662 sdl_update_caption(scon);
663 }
664
665 while (SDL_PollEvent(ev)) {
666 switch (ev->type) {
667 case SDL_KEYDOWN:
668 idle = 0;
669 handle_keydown(ev);
670 break;
671 case SDL_KEYUP:
672 idle = 0;
673 handle_keyup(ev);
674 break;
675 case SDL_TEXTINPUT:
676 idle = 0;
677 handle_textinput(ev);
678 break;
679 case SDL_QUIT:
680 if (scon->opts->has_window_close && !scon->opts->window_close) {
681 allow_close = false;
682 }
683 if (allow_close) {
684 shutdown_action = SHUTDOWN_ACTION_POWEROFF;
685 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI);
686 }
687 break;
688 case SDL_MOUSEMOTION:
689 idle = 0;
690 handle_mousemotion(ev);
691 break;
692 case SDL_MOUSEBUTTONDOWN:
693 case SDL_MOUSEBUTTONUP:
694 idle = 0;
695 handle_mousebutton(ev);
696 break;
697 case SDL_MOUSEWHEEL:
698 idle = 0;
699 handle_mousewheel(ev);
700 break;
701 case SDL_WINDOWEVENT:
702 handle_windowevent(ev);
703 break;
704 default:
705 break;
706 }
707 }
708
709 if (idle) {
710 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) {
711 scon->idle_counter++;
712 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) {
713 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT;
714 }
715 }
716 } else {
717 scon->idle_counter = 0;
718 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY;
719 }
720 }
721
sdl_mouse_warp(DisplayChangeListener * dcl,int x,int y,bool on)722 static void sdl_mouse_warp(DisplayChangeListener *dcl,
723 int x, int y, bool on)
724 {
725 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
726
727 if (!qemu_console_is_graphic(scon->dcl.con)) {
728 return;
729 }
730
731 if (on) {
732 if (!guest_cursor) {
733 sdl_show_cursor(scon);
734 }
735 if (gui_grab || qemu_input_is_absolute(scon->dcl.con) || absolute_enabled) {
736 SDL_SetCursor(guest_sprite);
737 if (!qemu_input_is_absolute(scon->dcl.con) && !absolute_enabled) {
738 SDL_WarpMouseInWindow(scon->real_window, x, y);
739 }
740 }
741 } else if (gui_grab) {
742 sdl_hide_cursor(scon);
743 }
744 guest_cursor = on;
745 guest_x = x, guest_y = y;
746 }
747
sdl_mouse_define(DisplayChangeListener * dcl,QEMUCursor * c)748 static void sdl_mouse_define(DisplayChangeListener *dcl,
749 QEMUCursor *c)
750 {
751
752 if (guest_sprite) {
753 SDL_FreeCursor(guest_sprite);
754 }
755
756 if (guest_sprite_surface) {
757 SDL_FreeSurface(guest_sprite_surface);
758 }
759
760 guest_sprite_surface =
761 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4,
762 0xff0000, 0x00ff00, 0xff, 0xff000000);
763
764 if (!guest_sprite_surface) {
765 fprintf(stderr, "Failed to make rgb surface from %p\n", c);
766 return;
767 }
768 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface,
769 c->hot_x, c->hot_y);
770 if (!guest_sprite) {
771 fprintf(stderr, "Failed to make color cursor from %p\n", c);
772 return;
773 }
774 if (guest_cursor &&
775 (gui_grab || qemu_input_is_absolute(dcl->con) || absolute_enabled)) {
776 SDL_SetCursor(guest_sprite);
777 }
778 }
779
sdl_cleanup(void)780 static void sdl_cleanup(void)
781 {
782 if (guest_sprite) {
783 SDL_FreeCursor(guest_sprite);
784 }
785 SDL_QuitSubSystem(SDL_INIT_VIDEO);
786 }
787
788 static const DisplayChangeListenerOps dcl_2d_ops = {
789 .dpy_name = "sdl2-2d",
790 .dpy_gfx_update = sdl2_2d_update,
791 .dpy_gfx_switch = sdl2_2d_switch,
792 .dpy_gfx_check_format = sdl2_2d_check_format,
793 .dpy_refresh = sdl2_2d_refresh,
794 .dpy_mouse_set = sdl_mouse_warp,
795 .dpy_cursor_define = sdl_mouse_define,
796 };
797
798 #ifdef CONFIG_OPENGL
799 static const DisplayChangeListenerOps dcl_gl_ops = {
800 .dpy_name = "sdl2-gl",
801 .dpy_gfx_update = sdl2_gl_update,
802 .dpy_gfx_switch = sdl2_gl_switch,
803 .dpy_gfx_check_format = console_gl_check_format,
804 .dpy_refresh = sdl2_gl_refresh,
805 .dpy_mouse_set = sdl_mouse_warp,
806 .dpy_cursor_define = sdl_mouse_define,
807
808 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable,
809 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture,
810 .dpy_gl_update = sdl2_gl_scanout_flush,
811 };
812
813 static bool
sdl2_gl_is_compatible_dcl(DisplayGLCtx * dgc,DisplayChangeListener * dcl)814 sdl2_gl_is_compatible_dcl(DisplayGLCtx *dgc,
815 DisplayChangeListener *dcl)
816 {
817 return dcl->ops == &dcl_gl_ops;
818 }
819
820 static const DisplayGLCtxOps gl_ctx_ops = {
821 .dpy_gl_ctx_is_compatible_dcl = sdl2_gl_is_compatible_dcl,
822 .dpy_gl_ctx_create = sdl2_gl_create_context,
823 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context,
824 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current,
825 };
826 #endif
827
sdl2_display_early_init(DisplayOptions * o)828 static void sdl2_display_early_init(DisplayOptions *o)
829 {
830 assert(o->type == DISPLAY_TYPE_SDL);
831 if (o->has_gl && o->gl) {
832 #ifdef CONFIG_OPENGL
833 display_opengl = 1;
834 #endif
835 }
836 }
837
sdl2_display_init(DisplayState * ds,DisplayOptions * o)838 static void sdl2_display_init(DisplayState *ds, DisplayOptions *o)
839 {
840 uint8_t data = 0;
841 int i;
842 SDL_SysWMinfo info;
843 SDL_Surface *icon = NULL;
844 char *dir;
845
846 assert(o->type == DISPLAY_TYPE_SDL);
847
848 if (SDL_GetHintBoolean("QEMU_ENABLE_SDL_LOGGING", SDL_FALSE)) {
849 SDL_LogSetAllPriority(SDL_LOG_PRIORITY_VERBOSE);
850 }
851
852 if (SDL_Init(SDL_INIT_VIDEO)) {
853 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
854 SDL_GetError());
855 exit(1);
856 }
857 #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */
858 SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0");
859 #endif
860 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1");
861 #ifdef SDL_HINT_ALLOW_ALT_TAB_WHILE_GRABBED
862 SDL_SetHint(SDL_HINT_ALLOW_ALT_TAB_WHILE_GRABBED, "0");
863 #endif
864 SDL_SetHint(SDL_HINT_WINDOWS_NO_CLOSE_ON_ALT_F4, "1");
865 SDL_EnableScreenSaver();
866 memset(&info, 0, sizeof(info));
867 SDL_VERSION(&info.version);
868
869 gui_fullscreen = o->has_full_screen && o->full_screen;
870
871 if (o->u.sdl.has_grab_mod) {
872 if (o->u.sdl.grab_mod == HOT_KEY_MOD_LSHIFT_LCTRL_LALT) {
873 alt_grab = true;
874 } else if (o->u.sdl.grab_mod == HOT_KEY_MOD_RCTRL) {
875 ctrl_grab = true;
876 }
877 }
878
879 for (i = 0;; i++) {
880 QemuConsole *con = qemu_console_lookup_by_index(i);
881 if (!con) {
882 break;
883 }
884 }
885 sdl2_num_outputs = i;
886 if (sdl2_num_outputs == 0) {
887 return;
888 }
889 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs);
890 for (i = 0; i < sdl2_num_outputs; i++) {
891 QemuConsole *con = qemu_console_lookup_by_index(i);
892 assert(con != NULL);
893 if (!qemu_console_is_graphic(con) &&
894 qemu_console_get_index(con) != 0) {
895 sdl2_console[i].hidden = true;
896 }
897 sdl2_console[i].idx = i;
898 sdl2_console[i].opts = o;
899 #ifdef CONFIG_OPENGL
900 sdl2_console[i].opengl = display_opengl;
901 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops;
902 sdl2_console[i].dgc.ops = display_opengl ? &gl_ctx_ops : NULL;
903 #else
904 sdl2_console[i].opengl = 0;
905 sdl2_console[i].dcl.ops = &dcl_2d_ops;
906 #endif
907 sdl2_console[i].dcl.con = con;
908 sdl2_console[i].kbd = qkbd_state_init(con);
909 if (display_opengl) {
910 qemu_console_set_display_gl_ctx(con, &sdl2_console[i].dgc);
911 }
912 register_displaychangelistener(&sdl2_console[i].dcl);
913
914 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11)
915 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) {
916 #if defined(SDL_VIDEO_DRIVER_WINDOWS)
917 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window);
918 #elif defined(SDL_VIDEO_DRIVER_X11)
919 qemu_console_set_window_id(con, info.info.x11.window);
920 #endif
921 }
922 #endif
923 }
924
925 #ifdef CONFIG_SDL_IMAGE
926 dir = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/128x128/apps/qemu.png");
927 icon = IMG_Load(dir);
928 #else
929 /* Load a 32x32x4 image. White pixels are transparent. */
930 dir = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/32x32/apps/qemu.bmp");
931 icon = SDL_LoadBMP(dir);
932 if (icon) {
933 uint32_t colorkey = SDL_MapRGB(icon->format, 255, 255, 255);
934 SDL_SetColorKey(icon, SDL_TRUE, colorkey);
935 }
936 #endif
937 g_free(dir);
938 if (icon) {
939 SDL_SetWindowIcon(sdl2_console[0].real_window, icon);
940 }
941
942 mouse_mode_notifier.notify = sdl_mouse_mode_change;
943 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
944
945 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
946 sdl_cursor_normal = SDL_GetCursor();
947
948 if (gui_fullscreen) {
949 sdl_grab_start(&sdl2_console[0]);
950 }
951
952 atexit(sdl_cleanup);
953
954 /* SDL's event polling (in dpy_refresh) must happen on the main thread. */
955 qemu_main = NULL;
956 }
957
958 static QemuDisplay qemu_display_sdl2 = {
959 .type = DISPLAY_TYPE_SDL,
960 .early_init = sdl2_display_early_init,
961 .init = sdl2_display_init,
962 };
963
register_sdl1(void)964 static void register_sdl1(void)
965 {
966 qemu_display_register(&qemu_display_sdl2);
967 }
968
969 type_init(register_sdl1);
970
971 #ifdef CONFIG_OPENGL
972 module_dep("ui-opengl");
973 #endif
974
