jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
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#include "ui/win32-kbd-hook.h"
34
35static int sdl2_num_outputs;
36static struct sdl2_console *sdl2_console;
37
38static SDL_Surface *guest_sprite_surface;
39static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
40
41static int gui_saved_grab;
42static int gui_fullscreen;
43static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
44static SDL_Cursor *sdl_cursor_normal;
45static SDL_Cursor *sdl_cursor_hidden;
46static int absolute_enabled;
47static int guest_cursor;
48static int guest_x, guest_y;
49static SDL_Cursor *guest_sprite;
50static Notifier mouse_mode_notifier;
51
52#define SDL2_REFRESH_INTERVAL_BUSY 10
53#define SDL2_MAX_IDLE_COUNT (2 * GUI_REFRESH_INTERVAL_DEFAULT \
54 / SDL2_REFRESH_INTERVAL_BUSY + 1)
55
56static void sdl_update_caption(struct sdl2_console *scon);
57
58static struct sdl2_console *get_scon_from_window(uint32_t window_id)
59{
60 int i;
61 for (i = 0; i < sdl2_num_outputs; i++) {
62 if (sdl2_console[i].real_window == SDL_GetWindowFromID(window_id)) {
63 return &sdl2_console[i];
64 }
65 }
66 return NULL;
67}
68
69void sdl2_window_create(struct sdl2_console *scon)
70{
71 int flags = 0;
72
73 if (!scon->surface) {
74 return;
75 }
76 assert(!scon->real_window);
77
78 if (gui_fullscreen) {
79 flags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
80 } else {
81 flags |= SDL_WINDOW_RESIZABLE;
82 }
83 if (scon->hidden) {
84 flags |= SDL_WINDOW_HIDDEN;
85 }
86
87 scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED,
88 SDL_WINDOWPOS_UNDEFINED,
89 surface_width(scon->surface),
90 surface_height(scon->surface),
91 flags);
92 scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0);
93 if (scon->opengl) {
94 scon->winctx = SDL_GL_GetCurrentContext();
95 }
96 sdl_update_caption(scon);
97}
98
99void sdl2_window_destroy(struct sdl2_console *scon)
100{
101 if (!scon->real_window) {
102 return;
103 }
104
105 SDL_DestroyRenderer(scon->real_renderer);
106 scon->real_renderer = NULL;
107 SDL_DestroyWindow(scon->real_window);
108 scon->real_window = NULL;
109}
110
111void sdl2_window_resize(struct sdl2_console *scon)
112{
113 if (!scon->real_window) {
114 return;
115 }
116
117 SDL_SetWindowSize(scon->real_window,
118 surface_width(scon->surface),
119 surface_height(scon->surface));
120}
121
122static void sdl2_redraw(struct sdl2_console *scon)
123{
124 if (scon->opengl) {
125#ifdef CONFIG_OPENGL
126 sdl2_gl_redraw(scon);
127#endif
128 } else {
129 sdl2_2d_redraw(scon);
130 }
131}
132
133static void sdl_update_caption(struct sdl2_console *scon)
134{
135 char win_title[1024];
136 char icon_title[1024];
137 const char *status = "";
138
139 if (!runstate_is_running()) {
140 status = " [Stopped]";
141 } else if (gui_grab) {
142 if (alt_grab) {
143 status = " - Press Ctrl-Alt-Shift-G to exit grab";
144 } else if (ctrl_grab) {
145 status = " - Press Right-Ctrl-G to exit grab";
146 } else {
147 status = " - Press Ctrl-Alt-G to exit grab";
148 }
149 }
150
151 if (qemu_name) {
152 snprintf(win_title, sizeof(win_title), "QEMU (%s-%d)%s", qemu_name,
153 scon->idx, status);
154 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
155 } else {
156 snprintf(win_title, sizeof(win_title), "QEMU%s", status);
157 snprintf(icon_title, sizeof(icon_title), "QEMU");
158 }
159
160 if (scon->real_window) {
161 SDL_SetWindowTitle(scon->real_window, win_title);
162 }
163}
164
165static void sdl_hide_cursor(struct sdl2_console *scon)
166{
167 if (scon->opts->has_show_cursor && scon->opts->show_cursor) {
168 return;
169 }
170
171 SDL_ShowCursor(SDL_DISABLE);
172 SDL_SetCursor(sdl_cursor_hidden);
173
174 if (!qemu_input_is_absolute()) {
175 SDL_SetRelativeMouseMode(SDL_TRUE);
176 }
177}
178
179static void sdl_show_cursor(struct sdl2_console *scon)
180{
181 if (scon->opts->has_show_cursor && scon->opts->show_cursor) {
182 return;
183 }
184
185 if (!qemu_input_is_absolute()) {
186 SDL_SetRelativeMouseMode(SDL_FALSE);
187 }
188
189 if (guest_cursor &&
190 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) {
191 SDL_SetCursor(guest_sprite);
192 } else {
193 SDL_SetCursor(sdl_cursor_normal);
194 }
195
196 SDL_ShowCursor(SDL_ENABLE);
197}
198
199static void sdl_grab_start(struct sdl2_console *scon)
200{
201 QemuConsole *con = scon ? scon->dcl.con : NULL;
202
203 if (!con || !qemu_console_is_graphic(con)) {
204 return;
205 }
206 /*
207 * If the application is not active, do not try to enter grab state. This
208 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the
209 * application (SDL bug).
210 */
211 if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) {
212 return;
213 }
214 if (guest_cursor) {
215 SDL_SetCursor(guest_sprite);
216 if (!qemu_input_is_absolute() && !absolute_enabled) {
217 SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y);
218 }
219 } else {
220 sdl_hide_cursor(scon);
221 }
222 SDL_SetWindowGrab(scon->real_window, SDL_TRUE);
223 gui_grab = 1;
224 win32_kbd_set_grab(true);
225 sdl_update_caption(scon);
226}
227
228static void sdl_grab_end(struct sdl2_console *scon)
229{
230 SDL_SetWindowGrab(scon->real_window, SDL_FALSE);
231 gui_grab = 0;
232 win32_kbd_set_grab(false);
233 sdl_show_cursor(scon);
234 sdl_update_caption(scon);
235}
236
237static void absolute_mouse_grab(struct sdl2_console *scon)
238{
239 int mouse_x, mouse_y;
240 int scr_w, scr_h;
241 SDL_GetMouseState(&mouse_x, &mouse_y);
242 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h);
243 if (mouse_x > 0 && mouse_x < scr_w - 1 &&
244 mouse_y > 0 && mouse_y < scr_h - 1) {
245 sdl_grab_start(scon);
246 }
247}
248
249static void sdl_mouse_mode_change(Notifier *notify, void *data)
250{
251 if (qemu_input_is_absolute()) {
252 if (!absolute_enabled) {
253 absolute_enabled = 1;
254 SDL_SetRelativeMouseMode(SDL_FALSE);
255 absolute_mouse_grab(&sdl2_console[0]);
256 }
257 } else if (absolute_enabled) {
258 if (!gui_fullscreen) {
259 sdl_grab_end(&sdl2_console[0]);
260 }
261 absolute_enabled = 0;
262 }
263}
264
265static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy,
266 int x, int y, int state)
267{
268 static uint32_t bmap[INPUT_BUTTON__MAX] = {
269 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT),
270 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE),
271 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT),
272 };
273 static uint32_t prev_state;
274
275 if (prev_state != state) {
276 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state);
277 prev_state = state;
278 }
279
280 if (qemu_input_is_absolute()) {
281 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X,
282 x, 0, surface_width(scon->surface));
283 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y,
284 y, 0, surface_height(scon->surface));
285 } else {
286 if (guest_cursor) {
287 x -= guest_x;
288 y -= guest_y;
289 guest_x += x;
290 guest_y += y;
291 dx = x;
292 dy = y;
293 }
294 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx);
295 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy);
296 }
297 qemu_input_event_sync();
298}
299
300static void toggle_full_screen(struct sdl2_console *scon)
301{
302 gui_fullscreen = !gui_fullscreen;
303 if (gui_fullscreen) {
304 SDL_SetWindowFullscreen(scon->real_window,
305 SDL_WINDOW_FULLSCREEN_DESKTOP);
306 gui_saved_grab = gui_grab;
307 sdl_grab_start(scon);
308 } else {
309 if (!gui_saved_grab) {
310 sdl_grab_end(scon);
311 }
312 SDL_SetWindowFullscreen(scon->real_window, 0);
313 }
314 sdl2_redraw(scon);
315}
316
317static int get_mod_state(void)
318{
319 SDL_Keymod mod = SDL_GetModState();
320
321 if (alt_grab) {
322 return (mod & (gui_grab_code | KMOD_LSHIFT)) ==
323 (gui_grab_code | KMOD_LSHIFT);
324 } else if (ctrl_grab) {
325 return (mod & KMOD_RCTRL) == KMOD_RCTRL;
326 } else {
327 return (mod & gui_grab_code) == gui_grab_code;
328 }
329}
330
331static void *sdl2_win32_get_hwnd(struct sdl2_console *scon)
332{
333#ifdef CONFIG_WIN32
334 SDL_SysWMinfo info;
335
336 SDL_VERSION(&info.version);
337 if (SDL_GetWindowWMInfo(scon->real_window, &info)) {
338 return info.info.win.window;
339 }
340#endif
341 return NULL;
342}
343
344static void handle_keydown(SDL_Event *ev)
345{
346 int win;
347 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID);
348 int gui_key_modifier_pressed = get_mod_state();
349 int gui_keysym = 0;
350
351 if (!scon) {
352 return;
353 }
354
355 if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) {
356 switch (ev->key.keysym.scancode) {
357 case SDL_SCANCODE_2:
358 case SDL_SCANCODE_3:
359 case SDL_SCANCODE_4:
360 case SDL_SCANCODE_5:
361 case SDL_SCANCODE_6:
362 case SDL_SCANCODE_7:
363 case SDL_SCANCODE_8:
364 case SDL_SCANCODE_9:
365 if (gui_grab) {
366 sdl_grab_end(scon);
367 }
368
369 win = ev->key.keysym.scancode - SDL_SCANCODE_1;
370 if (win < sdl2_num_outputs) {
371 sdl2_console[win].hidden = !sdl2_console[win].hidden;
372 if (sdl2_console[win].real_window) {
373 if (sdl2_console[win].hidden) {
374 SDL_HideWindow(sdl2_console[win].real_window);
375 } else {
376 SDL_ShowWindow(sdl2_console[win].real_window);
377 }
378 }
379 gui_keysym = 1;
380 }
381 break;
382 case SDL_SCANCODE_F:
383 toggle_full_screen(scon);
384 gui_keysym = 1;
385 break;
386 case SDL_SCANCODE_G:
387 gui_keysym = 1;
388 if (!gui_grab) {
389 sdl_grab_start(scon);
390 } else if (!gui_fullscreen) {
391 sdl_grab_end(scon);
392 }
393 break;
394 case SDL_SCANCODE_U:
395 sdl2_window_resize(scon);
396 if (!scon->opengl) {
397 /* re-create scon->texture */
398 sdl2_2d_switch(&scon->dcl, scon->surface);
399 }
400 gui_keysym = 1;
401 break;
402#if 0
403 case SDL_SCANCODE_KP_PLUS:
404 case SDL_SCANCODE_KP_MINUS:
405 if (!gui_fullscreen) {
406 int scr_w, scr_h;
407 int width, height;
408 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h);
409
410 width = MAX(scr_w + (ev->key.keysym.scancode ==
411 SDL_SCANCODE_KP_PLUS ? 50 : -50),
412 160);
413 height = (surface_height(scon->surface) * width) /
414 surface_width(scon->surface);
415 fprintf(stderr, "%s: scale to %dx%d\n",
416 __func__, width, height);
417 sdl_scale(scon, width, height);
418 sdl2_redraw(scon);
419 gui_keysym = 1;
420 }
421#endif
422 default:
423 break;
424 }
425 }
426 if (!gui_keysym) {
427 sdl2_process_key(scon, &ev->key);
428 }
429}
430
431static void handle_keyup(SDL_Event *ev)
432{
433 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID);
434
435 if (!scon) {
436 return;
437 }
438
439 scon->ignore_hotkeys = false;
440 sdl2_process_key(scon, &ev->key);
441}
442
443static void handle_textinput(SDL_Event *ev)
444{
445 struct sdl2_console *scon = get_scon_from_window(ev->text.windowID);
446 QemuConsole *con = scon ? scon->dcl.con : NULL;
447
448 if (!con) {
449 return;
450 }
451
452 if (qemu_console_is_graphic(con)) {
453 return;
454 }
455 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text));
456}
457
458static void handle_mousemotion(SDL_Event *ev)
459{
460 int max_x, max_y;
461 struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID);
462
463 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) {
464 return;
465 }
466
467 if (qemu_input_is_absolute() || absolute_enabled) {
468 int scr_w, scr_h;
469 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h);
470 max_x = scr_w - 1;
471 max_y = scr_h - 1;
472 if (gui_grab && !gui_fullscreen
473 && (ev->motion.x == 0 || ev->motion.y == 0 ||
474 ev->motion.x == max_x || ev->motion.y == max_y)) {
475 sdl_grab_end(scon);
476 }
477 if (!gui_grab &&
478 (ev->motion.x > 0 && ev->motion.x < max_x &&
479 ev->motion.y > 0 && ev->motion.y < max_y)) {
480 sdl_grab_start(scon);
481 }
482 }
483 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) {
484 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel,
485 ev->motion.x, ev->motion.y, ev->motion.state);
486 }
487}
488
489static void handle_mousebutton(SDL_Event *ev)
490{
491 int buttonstate = SDL_GetMouseState(NULL, NULL);
492 SDL_MouseButtonEvent *bev;
493 struct sdl2_console *scon = get_scon_from_window(ev->button.windowID);
494
495 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) {
496 return;
497 }
498
499 bev = &ev->button;
500 if (!gui_grab && !qemu_input_is_absolute()) {
501 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) {
502 /* start grabbing all events */
503 sdl_grab_start(scon);
504 }
505 } else {
506 if (ev->type == SDL_MOUSEBUTTONDOWN) {
507 buttonstate |= SDL_BUTTON(bev->button);
508 } else {
509 buttonstate &= ~SDL_BUTTON(bev->button);
510 }
511 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate);
512 }
513}
514
515static void handle_mousewheel(SDL_Event *ev)
516{
517 struct sdl2_console *scon = get_scon_from_window(ev->wheel.windowID);
518 SDL_MouseWheelEvent *wev = &ev->wheel;
519 InputButton btn;
520
521 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) {
522 return;
523 }
524
525 if (wev->y > 0) {
526 btn = INPUT_BUTTON_WHEEL_UP;
527 } else if (wev->y < 0) {
528 btn = INPUT_BUTTON_WHEEL_DOWN;
529 } else {
530 return;
531 }
532
533 qemu_input_queue_btn(scon->dcl.con, btn, true);
534 qemu_input_event_sync();
535 qemu_input_queue_btn(scon->dcl.con, btn, false);
536 qemu_input_event_sync();
537}
538
539static void handle_windowevent(SDL_Event *ev)
540{
541 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID);
542 bool allow_close = true;
543
544 if (!scon) {
545 return;
546 }
547
548 switch (ev->window.event) {
549 case SDL_WINDOWEVENT_RESIZED:
550 {
551 QemuUIInfo info;
552 memset(&info, 0, sizeof(info));
553 info.width = ev->window.data1;
554 info.height = ev->window.data2;
555 dpy_set_ui_info(scon->dcl.con, &info);
556 }
557 sdl2_redraw(scon);
558 break;
559 case SDL_WINDOWEVENT_EXPOSED:
560 sdl2_redraw(scon);
561 break;
562 case SDL_WINDOWEVENT_FOCUS_GAINED:
563 win32_kbd_set_grab(gui_grab);
564 if (qemu_console_is_graphic(scon->dcl.con)) {
565 win32_kbd_set_window(sdl2_win32_get_hwnd(scon));
566 }
567 /* fall through */
568 case SDL_WINDOWEVENT_ENTER:
569 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) {
570 absolute_mouse_grab(scon);
571 }
572 /* If a new console window opened using a hotkey receives the
573 * focus, SDL sends another KEYDOWN event to the new window,
574 * closing the console window immediately after.
575 *
576 * Work around this by ignoring further hotkey events until a
577 * key is released.
578 */
579 scon->ignore_hotkeys = get_mod_state();
580 break;
581 case SDL_WINDOWEVENT_FOCUS_LOST:
582 if (qemu_console_is_graphic(scon->dcl.con)) {
583 win32_kbd_set_window(NULL);
584 }
585 if (gui_grab && !gui_fullscreen) {
586 sdl_grab_end(scon);
587 }
588 break;
589 case SDL_WINDOWEVENT_RESTORED:
590 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT);
591 break;
592 case SDL_WINDOWEVENT_MINIMIZED:
593 update_displaychangelistener(&scon->dcl, 500);
594 break;
595 case SDL_WINDOWEVENT_CLOSE:
596 if (qemu_console_is_graphic(scon->dcl.con)) {
597 if (scon->opts->has_window_close && !scon->opts->window_close) {
598 allow_close = false;
599 }
600 if (allow_close) {
601 no_shutdown = 0;
602 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI);
603 }
604 } else {
605 SDL_HideWindow(scon->real_window);
606 scon->hidden = true;
607 }
608 break;
609 case SDL_WINDOWEVENT_SHOWN:
610 scon->hidden = false;
611 break;
612 case SDL_WINDOWEVENT_HIDDEN:
613 scon->hidden = true;
614 break;
615 }
616}
617
618void sdl2_poll_events(struct sdl2_console *scon)
619{
620 SDL_Event ev1, *ev = &ev1;
621 bool allow_close = true;
622 int idle = 1;
623
624 if (scon->last_vm_running != runstate_is_running()) {
625 scon->last_vm_running = runstate_is_running();
626 sdl_update_caption(scon);
627 }
628
629 while (SDL_PollEvent(ev)) {
630 switch (ev->type) {
631 case SDL_KEYDOWN:
632 idle = 0;
633 handle_keydown(ev);
634 break;
635 case SDL_KEYUP:
636 idle = 0;
637 handle_keyup(ev);
638 break;
639 case SDL_TEXTINPUT:
640 idle = 0;
641 handle_textinput(ev);
642 break;
643 case SDL_QUIT:
644 if (scon->opts->has_window_close && !scon->opts->window_close) {
645 allow_close = false;
646 }
647 if (allow_close) {
648 no_shutdown = 0;
649 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI);
650 }
651 break;
652 case SDL_MOUSEMOTION:
653 idle = 0;
654 handle_mousemotion(ev);
655 break;
656 case SDL_MOUSEBUTTONDOWN:
657 case SDL_MOUSEBUTTONUP:
658 idle = 0;
659 handle_mousebutton(ev);
660 break;
661 case SDL_MOUSEWHEEL:
662 idle = 0;
663 handle_mousewheel(ev);
664 break;
665 case SDL_WINDOWEVENT:
666 handle_windowevent(ev);
667 break;
668 default:
669 break;
670 }
671 }
672
673 if (idle) {
674 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) {
675 scon->idle_counter++;
676 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) {
677 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT;
678 }
679 }
680 } else {
681 scon->idle_counter = 0;
682 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY;
683 }
684}
685
686static void sdl_mouse_warp(DisplayChangeListener *dcl,
687 int x, int y, int on)
688{
689 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl);
690
691 if (!qemu_console_is_graphic(scon->dcl.con)) {
692 return;
693 }
694
695 if (on) {
696 if (!guest_cursor) {
697 sdl_show_cursor(scon);
698 }
699 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) {
700 SDL_SetCursor(guest_sprite);
701 if (!qemu_input_is_absolute() && !absolute_enabled) {
702 SDL_WarpMouseInWindow(scon->real_window, x, y);
703 }
704 }
705 } else if (gui_grab) {
706 sdl_hide_cursor(scon);
707 }
708 guest_cursor = on;
709 guest_x = x, guest_y = y;
710}
711
712static void sdl_mouse_define(DisplayChangeListener *dcl,
713 QEMUCursor *c)
714{
715
716 if (guest_sprite) {
717 SDL_FreeCursor(guest_sprite);
718 }
719
720 if (guest_sprite_surface) {
721 SDL_FreeSurface(guest_sprite_surface);
722 }
723
724 guest_sprite_surface =
725 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4,
726 0xff0000, 0x00ff00, 0xff, 0xff000000);
727
728 if (!guest_sprite_surface) {
729 fprintf(stderr, "Failed to make rgb surface from %p\n", c);
730 return;
731 }
732 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface,
733 c->hot_x, c->hot_y);
734 if (!guest_sprite) {
735 fprintf(stderr, "Failed to make color cursor from %p\n", c);
736 return;
737 }
738 if (guest_cursor &&
739 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) {
740 SDL_SetCursor(guest_sprite);
741 }
742}
743
744static void sdl_cleanup(void)
745{
746 if (guest_sprite) {
747 SDL_FreeCursor(guest_sprite);
748 }
749 SDL_QuitSubSystem(SDL_INIT_VIDEO);
750}
751
752static const DisplayChangeListenerOps dcl_2d_ops = {
753 .dpy_name = "sdl2-2d",
754 .dpy_gfx_update = sdl2_2d_update,
755 .dpy_gfx_switch = sdl2_2d_switch,
756 .dpy_gfx_check_format = sdl2_2d_check_format,
757 .dpy_refresh = sdl2_2d_refresh,
758 .dpy_mouse_set = sdl_mouse_warp,
759 .dpy_cursor_define = sdl_mouse_define,
760};
761
762#ifdef CONFIG_OPENGL
763static const DisplayChangeListenerOps dcl_gl_ops = {
764 .dpy_name = "sdl2-gl",
765 .dpy_gfx_update = sdl2_gl_update,
766 .dpy_gfx_switch = sdl2_gl_switch,
767 .dpy_gfx_check_format = console_gl_check_format,
768 .dpy_refresh = sdl2_gl_refresh,
769 .dpy_mouse_set = sdl_mouse_warp,
770 .dpy_cursor_define = sdl_mouse_define,
771
772 .dpy_gl_ctx_create = sdl2_gl_create_context,
773 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context,
774 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current,
775 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context,
776 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable,
777 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture,
778 .dpy_gl_update = sdl2_gl_scanout_flush,
779};
780#endif
781
782static void sdl2_display_early_init(DisplayOptions *o)
783{
784 assert(o->type == DISPLAY_TYPE_SDL);
785 if (o->has_gl && o->gl) {
786#ifdef CONFIG_OPENGL
787 display_opengl = 1;
788#endif
789 }
790}
791
792static void sdl2_display_init(DisplayState *ds, DisplayOptions *o)
793{
794 uint8_t data = 0;
795 int i;
796 SDL_SysWMinfo info;
797 SDL_Surface *icon = NULL;
798
799 assert(o->type == DISPLAY_TYPE_SDL);
800
801#ifdef __linux__
802 /* on Linux, SDL may use fbcon|directfb|svgalib when run without
803 * accessible $DISPLAY to open X11 window. This is often the case
804 * when qemu is run using sudo. But in this case, and when actually
805 * run in X11 environment, SDL fights with X11 for the video card,
806 * making current display unavailable, often until reboot.
807 * So make x11 the default SDL video driver if this variable is unset.
808 * This is a bit hackish but saves us from bigger problem.
809 * Maybe it's a good idea to fix this in SDL instead.
810 */
811 g_setenv("SDL_VIDEODRIVER", "x11", 0);
812#endif
813
814 if (SDL_Init(SDL_INIT_VIDEO)) {
815 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
816 SDL_GetError());
817 exit(1);
818 }
819#ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */
820 SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0");
821#endif
822 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1");
823 memset(&info, 0, sizeof(info));
824 SDL_VERSION(&info.version);
825
826 gui_fullscreen = o->has_full_screen && o->full_screen;
827
828 for (i = 0;; i++) {
829 QemuConsole *con = qemu_console_lookup_by_index(i);
830 if (!con) {
831 break;
832 }
833 }
834 sdl2_num_outputs = i;
835 if (sdl2_num_outputs == 0) {
836 return;
837 }
838 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs);
839 for (i = 0; i < sdl2_num_outputs; i++) {
840 QemuConsole *con = qemu_console_lookup_by_index(i);
841 assert(con != NULL);
842 if (!qemu_console_is_graphic(con) &&
843 qemu_console_get_index(con) != 0) {
844 sdl2_console[i].hidden = true;
845 }
846 sdl2_console[i].idx = i;
847 sdl2_console[i].opts = o;
848#ifdef CONFIG_OPENGL
849 sdl2_console[i].opengl = display_opengl;
850 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops;
851#else
852 sdl2_console[i].opengl = 0;
853 sdl2_console[i].dcl.ops = &dcl_2d_ops;
854#endif
855 sdl2_console[i].dcl.con = con;
856 sdl2_console[i].kbd = qkbd_state_init(con);
857 register_displaychangelistener(&sdl2_console[i].dcl);
858
859#if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11)
860 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) {
861#if defined(SDL_VIDEO_DRIVER_WINDOWS)
862 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window);
863#elif defined(SDL_VIDEO_DRIVER_X11)
864 qemu_console_set_window_id(con, info.info.x11.window);
865#endif
866 }
867#endif
868 }
869
870#ifdef CONFIG_SDL_IMAGE
871 icon = IMG_Load(CONFIG_QEMU_ICONDIR "/hicolor/128x128/apps/qemu.png");
872#else
873 /* Load a 32x32x4 image. White pixels are transparent. */
874 icon = SDL_LoadBMP(CONFIG_QEMU_ICONDIR "/hicolor/32x32/apps/qemu.bmp");
875 if (icon) {
876 uint32_t colorkey = SDL_MapRGB(icon->format, 255, 255, 255);
877 SDL_SetColorKey(icon, SDL_TRUE, colorkey);
878 }
879#endif
880 if (icon) {
881 SDL_SetWindowIcon(sdl2_console[0].real_window, icon);
882 }
883
884 mouse_mode_notifier.notify = sdl_mouse_mode_change;
885 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
886
887 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
888 sdl_cursor_normal = SDL_GetCursor();
889
890 if (gui_fullscreen) {
891 sdl_grab_start(&sdl2_console[0]);
892 }
893
894 atexit(sdl_cleanup);
895}
896
897static QemuDisplay qemu_display_sdl2 = {
898 .type = DISPLAY_TYPE_SDL,
899 .early_init = sdl2_display_early_init,
900 .init = sdl2_display_init,
901};
902
903static void register_sdl1(void)
904{
905 qemu_display_register(&qemu_display_sdl2);
906}
907
908type_init(register_sdl1);