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