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-common.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 static DisplayOptions *opts; 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_keysym; 43 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL; 44 static SDL_Cursor *sdl_cursor_normal; 45 static SDL_Cursor *sdl_cursor_hidden; 46 static int absolute_enabled; 47 static int guest_cursor; 48 static int guest_x, guest_y; 49 static SDL_Cursor *guest_sprite; 50 static 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 56 static void sdl_update_caption(struct sdl2_console *scon); 57 58 static 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 69 void 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 99 void 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 } 110 111 void 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 } 121 122 static 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 } 132 133 static 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 } 164 165 static void sdl_hide_cursor(void) 166 { 167 if (!cursor_hide) { 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 } 178 179 static void sdl_show_cursor(void) 180 { 181 if (!cursor_hide) { 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 } 198 199 static 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(); 221 } 222 SDL_SetWindowGrab(scon->real_window, SDL_TRUE); 223 gui_grab = 1; 224 sdl_update_caption(scon); 225 } 226 227 static void sdl_grab_end(struct sdl2_console *scon) 228 { 229 SDL_SetWindowGrab(scon->real_window, SDL_FALSE); 230 gui_grab = 0; 231 sdl_show_cursor(); 232 sdl_update_caption(scon); 233 } 234 235 static void absolute_mouse_grab(struct sdl2_console *scon) 236 { 237 int mouse_x, mouse_y; 238 int scr_w, scr_h; 239 SDL_GetMouseState(&mouse_x, &mouse_y); 240 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 241 if (mouse_x > 0 && mouse_x < scr_w - 1 && 242 mouse_y > 0 && mouse_y < scr_h - 1) { 243 sdl_grab_start(scon); 244 } 245 } 246 247 static void sdl_mouse_mode_change(Notifier *notify, void *data) 248 { 249 if (qemu_input_is_absolute()) { 250 if (!absolute_enabled) { 251 absolute_enabled = 1; 252 SDL_SetRelativeMouseMode(SDL_FALSE); 253 absolute_mouse_grab(&sdl2_console[0]); 254 } 255 } else if (absolute_enabled) { 256 if (!gui_fullscreen) { 257 sdl_grab_end(&sdl2_console[0]); 258 } 259 absolute_enabled = 0; 260 } 261 } 262 263 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy, 264 int x, int y, int state) 265 { 266 static uint32_t bmap[INPUT_BUTTON__MAX] = { 267 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT), 268 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE), 269 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT), 270 }; 271 static uint32_t prev_state; 272 273 if (prev_state != state) { 274 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); 275 prev_state = state; 276 } 277 278 if (qemu_input_is_absolute()) { 279 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, 280 x, 0, surface_width(scon->surface)); 281 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, 282 y, 0, surface_height(scon->surface)); 283 } else { 284 if (guest_cursor) { 285 x -= guest_x; 286 y -= guest_y; 287 guest_x += x; 288 guest_y += y; 289 dx = x; 290 dy = y; 291 } 292 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 293 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 294 } 295 qemu_input_event_sync(); 296 } 297 298 static void toggle_full_screen(struct sdl2_console *scon) 299 { 300 gui_fullscreen = !gui_fullscreen; 301 if (gui_fullscreen) { 302 SDL_SetWindowFullscreen(scon->real_window, 303 SDL_WINDOW_FULLSCREEN_DESKTOP); 304 gui_saved_grab = gui_grab; 305 sdl_grab_start(scon); 306 } else { 307 if (!gui_saved_grab) { 308 sdl_grab_end(scon); 309 } 310 SDL_SetWindowFullscreen(scon->real_window, 0); 311 } 312 sdl2_redraw(scon); 313 } 314 315 static int get_mod_state(void) 316 { 317 SDL_Keymod mod = SDL_GetModState(); 318 319 if (alt_grab) { 320 return (mod & (gui_grab_code | KMOD_LSHIFT)) == 321 (gui_grab_code | KMOD_LSHIFT); 322 } else if (ctrl_grab) { 323 return (mod & KMOD_RCTRL) == KMOD_RCTRL; 324 } else { 325 return (mod & gui_grab_code) == gui_grab_code; 326 } 327 } 328 329 static void handle_keydown(SDL_Event *ev) 330 { 331 int win; 332 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 333 int gui_key_modifier_pressed = get_mod_state(); 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_destroy(scon); 376 sdl2_window_create(scon); 377 if (!scon->opengl) { 378 /* re-create scon->texture */ 379 sdl2_2d_switch(&scon->dcl, scon->surface); 380 } 381 gui_keysym = 1; 382 break; 383 #if 0 384 case SDL_SCANCODE_KP_PLUS: 385 case SDL_SCANCODE_KP_MINUS: 386 if (!gui_fullscreen) { 387 int scr_w, scr_h; 388 int width, height; 389 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 390 391 width = MAX(scr_w + (ev->key.keysym.scancode == 392 SDL_SCANCODE_KP_PLUS ? 50 : -50), 393 160); 394 height = (surface_height(scon->surface) * width) / 395 surface_width(scon->surface); 396 fprintf(stderr, "%s: scale to %dx%d\n", 397 __func__, width, height); 398 sdl_scale(scon, width, height); 399 sdl2_redraw(scon); 400 gui_keysym = 1; 401 } 402 #endif 403 default: 404 break; 405 } 406 } 407 if (!gui_keysym) { 408 sdl2_process_key(scon, &ev->key); 409 } 410 } 411 412 static void handle_keyup(SDL_Event *ev) 413 { 414 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 415 int gui_key_modifier_pressed = get_mod_state(); 416 417 scon->ignore_hotkeys = false; 418 419 if (!gui_key_modifier_pressed) { 420 gui_keysym = 0; 421 } 422 if (!gui_keysym) { 423 sdl2_process_key(scon, &ev->key); 424 } 425 } 426 427 static void handle_textinput(SDL_Event *ev) 428 { 429 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 430 QemuConsole *con = scon ? scon->dcl.con : NULL; 431 432 if (qemu_console_is_graphic(con)) { 433 return; 434 } 435 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 436 } 437 438 static void handle_mousemotion(SDL_Event *ev) 439 { 440 int max_x, max_y; 441 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 442 443 if (!qemu_console_is_graphic(scon->dcl.con)) { 444 return; 445 } 446 447 if (qemu_input_is_absolute() || absolute_enabled) { 448 int scr_w, scr_h; 449 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 450 max_x = scr_w - 1; 451 max_y = scr_h - 1; 452 if (gui_grab && !gui_fullscreen 453 && (ev->motion.x == 0 || ev->motion.y == 0 || 454 ev->motion.x == max_x || ev->motion.y == max_y)) { 455 sdl_grab_end(scon); 456 } 457 if (!gui_grab && 458 (ev->motion.x > 0 && ev->motion.x < max_x && 459 ev->motion.y > 0 && ev->motion.y < max_y)) { 460 sdl_grab_start(scon); 461 } 462 } 463 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 464 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 465 ev->motion.x, ev->motion.y, ev->motion.state); 466 } 467 } 468 469 static void handle_mousebutton(SDL_Event *ev) 470 { 471 int buttonstate = SDL_GetMouseState(NULL, NULL); 472 SDL_MouseButtonEvent *bev; 473 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 474 475 if (!qemu_console_is_graphic(scon->dcl.con)) { 476 return; 477 } 478 479 bev = &ev->button; 480 if (!gui_grab && !qemu_input_is_absolute()) { 481 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 482 /* start grabbing all events */ 483 sdl_grab_start(scon); 484 } 485 } else { 486 if (ev->type == SDL_MOUSEBUTTONDOWN) { 487 buttonstate |= SDL_BUTTON(bev->button); 488 } else { 489 buttonstate &= ~SDL_BUTTON(bev->button); 490 } 491 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 492 } 493 } 494 495 static void handle_mousewheel(SDL_Event *ev) 496 { 497 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 498 SDL_MouseWheelEvent *wev = &ev->wheel; 499 InputButton btn; 500 501 if (!qemu_console_is_graphic(scon->dcl.con)) { 502 return; 503 } 504 505 if (wev->y > 0) { 506 btn = INPUT_BUTTON_WHEEL_UP; 507 } else if (wev->y < 0) { 508 btn = INPUT_BUTTON_WHEEL_DOWN; 509 } else { 510 return; 511 } 512 513 qemu_input_queue_btn(scon->dcl.con, btn, true); 514 qemu_input_event_sync(); 515 qemu_input_queue_btn(scon->dcl.con, btn, false); 516 qemu_input_event_sync(); 517 } 518 519 static void handle_windowevent(SDL_Event *ev) 520 { 521 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 522 bool allow_close = true; 523 524 if (!scon) { 525 return; 526 } 527 528 switch (ev->window.event) { 529 case SDL_WINDOWEVENT_RESIZED: 530 { 531 QemuUIInfo info; 532 memset(&info, 0, sizeof(info)); 533 info.width = ev->window.data1; 534 info.height = ev->window.data2; 535 dpy_set_ui_info(scon->dcl.con, &info); 536 } 537 sdl2_redraw(scon); 538 break; 539 case SDL_WINDOWEVENT_EXPOSED: 540 sdl2_redraw(scon); 541 break; 542 case SDL_WINDOWEVENT_FOCUS_GAINED: 543 case SDL_WINDOWEVENT_ENTER: 544 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 545 absolute_mouse_grab(scon); 546 } 547 /* If a new console window opened using a hotkey receives the 548 * focus, SDL sends another KEYDOWN event to the new window, 549 * closing the console window immediately after. 550 * 551 * Work around this by ignoring further hotkey events until a 552 * key is released. 553 */ 554 scon->ignore_hotkeys = get_mod_state(); 555 break; 556 case SDL_WINDOWEVENT_FOCUS_LOST: 557 if (gui_grab && !gui_fullscreen) { 558 sdl_grab_end(scon); 559 } 560 break; 561 case SDL_WINDOWEVENT_RESTORED: 562 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 563 break; 564 case SDL_WINDOWEVENT_MINIMIZED: 565 update_displaychangelistener(&scon->dcl, 500); 566 break; 567 case SDL_WINDOWEVENT_CLOSE: 568 if (qemu_console_is_graphic(scon->dcl.con)) { 569 if (opts->has_window_close && !opts->window_close) { 570 allow_close = false; 571 } 572 if (allow_close) { 573 no_shutdown = 0; 574 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 575 } 576 } else { 577 SDL_HideWindow(scon->real_window); 578 scon->hidden = true; 579 } 580 break; 581 case SDL_WINDOWEVENT_SHOWN: 582 scon->hidden = false; 583 break; 584 case SDL_WINDOWEVENT_HIDDEN: 585 scon->hidden = true; 586 break; 587 } 588 } 589 590 void sdl2_poll_events(struct sdl2_console *scon) 591 { 592 SDL_Event ev1, *ev = &ev1; 593 bool allow_close = true; 594 int idle = 1; 595 596 if (scon->last_vm_running != runstate_is_running()) { 597 scon->last_vm_running = runstate_is_running(); 598 sdl_update_caption(scon); 599 } 600 601 while (SDL_PollEvent(ev)) { 602 switch (ev->type) { 603 case SDL_KEYDOWN: 604 idle = 0; 605 handle_keydown(ev); 606 break; 607 case SDL_KEYUP: 608 idle = 0; 609 handle_keyup(ev); 610 break; 611 case SDL_TEXTINPUT: 612 idle = 0; 613 handle_textinput(ev); 614 break; 615 case SDL_QUIT: 616 if (opts->has_window_close && !opts->window_close) { 617 allow_close = false; 618 } 619 if (allow_close) { 620 no_shutdown = 0; 621 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 622 } 623 break; 624 case SDL_MOUSEMOTION: 625 idle = 0; 626 handle_mousemotion(ev); 627 break; 628 case SDL_MOUSEBUTTONDOWN: 629 case SDL_MOUSEBUTTONUP: 630 idle = 0; 631 handle_mousebutton(ev); 632 break; 633 case SDL_MOUSEWHEEL: 634 idle = 0; 635 handle_mousewheel(ev); 636 break; 637 case SDL_WINDOWEVENT: 638 handle_windowevent(ev); 639 break; 640 default: 641 break; 642 } 643 } 644 645 if (idle) { 646 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 647 scon->idle_counter++; 648 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 649 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 650 } 651 } 652 } else { 653 scon->idle_counter = 0; 654 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 655 } 656 } 657 658 static void sdl_mouse_warp(DisplayChangeListener *dcl, 659 int x, int y, int on) 660 { 661 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 662 663 if (!qemu_console_is_graphic(scon->dcl.con)) { 664 return; 665 } 666 667 if (on) { 668 if (!guest_cursor) { 669 sdl_show_cursor(); 670 } 671 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 672 SDL_SetCursor(guest_sprite); 673 if (!qemu_input_is_absolute() && !absolute_enabled) { 674 SDL_WarpMouseInWindow(scon->real_window, x, y); 675 } 676 } 677 } else if (gui_grab) { 678 sdl_hide_cursor(); 679 } 680 guest_cursor = on; 681 guest_x = x, guest_y = y; 682 } 683 684 static void sdl_mouse_define(DisplayChangeListener *dcl, 685 QEMUCursor *c) 686 { 687 688 if (guest_sprite) { 689 SDL_FreeCursor(guest_sprite); 690 } 691 692 if (guest_sprite_surface) { 693 SDL_FreeSurface(guest_sprite_surface); 694 } 695 696 guest_sprite_surface = 697 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 698 0xff0000, 0x00ff00, 0xff, 0xff000000); 699 700 if (!guest_sprite_surface) { 701 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 702 return; 703 } 704 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 705 c->hot_x, c->hot_y); 706 if (!guest_sprite) { 707 fprintf(stderr, "Failed to make color cursor from %p\n", c); 708 return; 709 } 710 if (guest_cursor && 711 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 712 SDL_SetCursor(guest_sprite); 713 } 714 } 715 716 static void sdl_cleanup(void) 717 { 718 if (guest_sprite) { 719 SDL_FreeCursor(guest_sprite); 720 } 721 SDL_QuitSubSystem(SDL_INIT_VIDEO); 722 } 723 724 static const DisplayChangeListenerOps dcl_2d_ops = { 725 .dpy_name = "sdl2-2d", 726 .dpy_gfx_update = sdl2_2d_update, 727 .dpy_gfx_switch = sdl2_2d_switch, 728 .dpy_gfx_check_format = sdl2_2d_check_format, 729 .dpy_refresh = sdl2_2d_refresh, 730 .dpy_mouse_set = sdl_mouse_warp, 731 .dpy_cursor_define = sdl_mouse_define, 732 }; 733 734 #ifdef CONFIG_OPENGL 735 static const DisplayChangeListenerOps dcl_gl_ops = { 736 .dpy_name = "sdl2-gl", 737 .dpy_gfx_update = sdl2_gl_update, 738 .dpy_gfx_switch = sdl2_gl_switch, 739 .dpy_gfx_check_format = console_gl_check_format, 740 .dpy_refresh = sdl2_gl_refresh, 741 .dpy_mouse_set = sdl_mouse_warp, 742 .dpy_cursor_define = sdl_mouse_define, 743 744 .dpy_gl_ctx_create = sdl2_gl_create_context, 745 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 746 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 747 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, 748 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 749 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 750 .dpy_gl_update = sdl2_gl_scanout_flush, 751 }; 752 #endif 753 754 static void sdl2_display_early_init(DisplayOptions *o) 755 { 756 assert(o->type == DISPLAY_TYPE_SDL); 757 if (o->has_gl && o->gl) { 758 #ifdef CONFIG_OPENGL 759 display_opengl = 1; 760 #endif 761 } 762 } 763 764 static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) 765 { 766 int flags; 767 uint8_t data = 0; 768 char *filename; 769 int i; 770 SDL_SysWMinfo info; 771 772 assert(o->type == DISPLAY_TYPE_SDL); 773 opts = o; 774 775 #ifdef __linux__ 776 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 777 * accessible $DISPLAY to open X11 window. This is often the case 778 * when qemu is run using sudo. But in this case, and when actually 779 * run in X11 environment, SDL fights with X11 for the video card, 780 * making current display unavailable, often until reboot. 781 * So make x11 the default SDL video driver if this variable is unset. 782 * This is a bit hackish but saves us from bigger problem. 783 * Maybe it's a good idea to fix this in SDL instead. 784 */ 785 setenv("SDL_VIDEODRIVER", "x11", 0); 786 #endif 787 788 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; 789 if (SDL_Init(flags)) { 790 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 791 SDL_GetError()); 792 exit(1); 793 } 794 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 795 memset(&info, 0, sizeof(info)); 796 SDL_VERSION(&info.version); 797 798 for (i = 0;; i++) { 799 QemuConsole *con = qemu_console_lookup_by_index(i); 800 if (!con) { 801 break; 802 } 803 } 804 sdl2_num_outputs = i; 805 if (sdl2_num_outputs == 0) { 806 return; 807 } 808 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 809 for (i = 0; i < sdl2_num_outputs; i++) { 810 QemuConsole *con = qemu_console_lookup_by_index(i); 811 assert(con != NULL); 812 if (!qemu_console_is_graphic(con)) { 813 sdl2_console[i].hidden = true; 814 } 815 sdl2_console[i].idx = i; 816 #ifdef CONFIG_OPENGL 817 sdl2_console[i].opengl = display_opengl; 818 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 819 #else 820 sdl2_console[i].opengl = 0; 821 sdl2_console[i].dcl.ops = &dcl_2d_ops; 822 #endif 823 sdl2_console[i].dcl.con = con; 824 register_displaychangelistener(&sdl2_console[i].dcl); 825 826 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 827 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 828 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 829 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 830 #elif defined(SDL_VIDEO_DRIVER_X11) 831 qemu_console_set_window_id(con, info.info.x11.window); 832 #endif 833 } 834 #endif 835 } 836 837 /* Load a 32x32x4 image. White pixels are transparent. */ 838 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp"); 839 if (filename) { 840 SDL_Surface *image = SDL_LoadBMP(filename); 841 if (image) { 842 uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255); 843 SDL_SetColorKey(image, SDL_TRUE, colorkey); 844 SDL_SetWindowIcon(sdl2_console[0].real_window, image); 845 } 846 g_free(filename); 847 } 848 849 if (opts->has_full_screen && opts->full_screen) { 850 gui_fullscreen = 1; 851 sdl_grab_start(0); 852 } 853 854 mouse_mode_notifier.notify = sdl_mouse_mode_change; 855 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 856 857 gui_grab = 0; 858 859 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 860 sdl_cursor_normal = SDL_GetCursor(); 861 862 atexit(sdl_cleanup); 863 } 864 865 static QemuDisplay qemu_display_sdl2 = { 866 .type = DISPLAY_TYPE_SDL, 867 .early_init = sdl2_display_early_init, 868 .init = sdl2_display_init, 869 }; 870 871 static void register_sdl1(void) 872 { 873 qemu_display_register(&qemu_display_sdl2); 874 } 875 876 type_init(register_sdl1); 877