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 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_noframe; 42 static int gui_key_modifier_pressed; 43 static int gui_keysym; 44 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL; 45 static SDL_Cursor *sdl_cursor_normal; 46 static SDL_Cursor *sdl_cursor_hidden; 47 static int absolute_enabled; 48 static int guest_cursor; 49 static int guest_x, guest_y; 50 static SDL_Cursor *guest_sprite; 51 static Notifier mouse_mode_notifier; 52 53 #define SDL2_REFRESH_INTERVAL_BUSY 10 54 #define SDL2_MAX_IDLE_COUNT (2 * GUI_REFRESH_INTERVAL_DEFAULT \ 55 / SDL2_REFRESH_INTERVAL_BUSY + 1) 56 57 static void sdl_update_caption(struct sdl2_console *scon); 58 59 static struct sdl2_console *get_scon_from_window(uint32_t window_id) 60 { 61 int i; 62 for (i = 0; i < sdl2_num_outputs; i++) { 63 if (sdl2_console[i].real_window == SDL_GetWindowFromID(window_id)) { 64 return &sdl2_console[i]; 65 } 66 } 67 return NULL; 68 } 69 70 void sdl2_window_create(struct sdl2_console *scon) 71 { 72 int flags = 0; 73 74 if (!scon->surface) { 75 return; 76 } 77 assert(!scon->real_window); 78 79 if (gui_fullscreen) { 80 flags |= SDL_WINDOW_FULLSCREEN_DESKTOP; 81 } else { 82 flags |= SDL_WINDOW_RESIZABLE; 83 } 84 if (scon->hidden) { 85 flags |= SDL_WINDOW_HIDDEN; 86 } 87 88 scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, 89 SDL_WINDOWPOS_UNDEFINED, 90 surface_width(scon->surface), 91 surface_height(scon->surface), 92 flags); 93 scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0); 94 if (scon->opengl) { 95 scon->winctx = SDL_GL_GetCurrentContext(); 96 } 97 sdl_update_caption(scon); 98 } 99 100 void sdl2_window_destroy(struct sdl2_console *scon) 101 { 102 if (!scon->real_window) { 103 return; 104 } 105 106 SDL_DestroyRenderer(scon->real_renderer); 107 scon->real_renderer = NULL; 108 SDL_DestroyWindow(scon->real_window); 109 scon->real_window = NULL; 110 } 111 112 void sdl2_window_resize(struct sdl2_console *scon) 113 { 114 if (!scon->real_window) { 115 return; 116 } 117 118 SDL_SetWindowSize(scon->real_window, 119 surface_width(scon->surface), 120 surface_height(scon->surface)); 121 } 122 123 static void sdl2_redraw(struct sdl2_console *scon) 124 { 125 if (scon->opengl) { 126 #ifdef CONFIG_OPENGL 127 sdl2_gl_redraw(scon); 128 #endif 129 } else { 130 sdl2_2d_redraw(scon); 131 } 132 } 133 134 static void sdl_update_caption(struct sdl2_console *scon) 135 { 136 char win_title[1024]; 137 char icon_title[1024]; 138 const char *status = ""; 139 140 if (!runstate_is_running()) { 141 status = " [Stopped]"; 142 } else if (gui_grab) { 143 if (alt_grab) { 144 status = " - Press Ctrl-Alt-Shift to exit grab"; 145 } else if (ctrl_grab) { 146 status = " - Press Right-Ctrl to exit grab"; 147 } else { 148 status = " - Press Ctrl-Alt to exit grab"; 149 } 150 } 151 152 if (qemu_name) { 153 snprintf(win_title, sizeof(win_title), "QEMU (%s-%d)%s", qemu_name, 154 scon->idx, status); 155 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name); 156 } else { 157 snprintf(win_title, sizeof(win_title), "QEMU%s", status); 158 snprintf(icon_title, sizeof(icon_title), "QEMU"); 159 } 160 161 if (scon->real_window) { 162 SDL_SetWindowTitle(scon->real_window, win_title); 163 } 164 } 165 166 static void sdl_hide_cursor(void) 167 { 168 if (!cursor_hide) { 169 return; 170 } 171 172 SDL_ShowCursor(SDL_DISABLE); 173 SDL_SetCursor(sdl_cursor_hidden); 174 175 if (!qemu_input_is_absolute()) { 176 SDL_SetRelativeMouseMode(SDL_TRUE); 177 } 178 } 179 180 static void sdl_show_cursor(void) 181 { 182 if (!cursor_hide) { 183 return; 184 } 185 186 if (!qemu_input_is_absolute()) { 187 SDL_SetRelativeMouseMode(SDL_FALSE); 188 } 189 190 if (guest_cursor && 191 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 192 SDL_SetCursor(guest_sprite); 193 } else { 194 SDL_SetCursor(sdl_cursor_normal); 195 } 196 197 SDL_ShowCursor(SDL_ENABLE); 198 } 199 200 static void sdl_grab_start(struct sdl2_console *scon) 201 { 202 QemuConsole *con = scon ? scon->dcl.con : NULL; 203 204 if (!con || !qemu_console_is_graphic(con)) { 205 return; 206 } 207 /* 208 * If the application is not active, do not try to enter grab state. This 209 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the 210 * application (SDL bug). 211 */ 212 if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) { 213 return; 214 } 215 if (guest_cursor) { 216 SDL_SetCursor(guest_sprite); 217 if (!qemu_input_is_absolute() && !absolute_enabled) { 218 SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y); 219 } 220 } else { 221 sdl_hide_cursor(); 222 } 223 SDL_SetWindowGrab(scon->real_window, SDL_TRUE); 224 gui_grab = 1; 225 sdl_update_caption(scon); 226 } 227 228 static void sdl_grab_end(struct sdl2_console *scon) 229 { 230 SDL_SetWindowGrab(scon->real_window, SDL_FALSE); 231 gui_grab = 0; 232 sdl_show_cursor(); 233 sdl_update_caption(scon); 234 } 235 236 static void absolute_mouse_grab(struct sdl2_console *scon) 237 { 238 int mouse_x, mouse_y; 239 int scr_w, scr_h; 240 SDL_GetMouseState(&mouse_x, &mouse_y); 241 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 242 if (mouse_x > 0 && mouse_x < scr_w - 1 && 243 mouse_y > 0 && mouse_y < scr_h - 1) { 244 sdl_grab_start(scon); 245 } 246 } 247 248 static void sdl_mouse_mode_change(Notifier *notify, void *data) 249 { 250 if (qemu_input_is_absolute()) { 251 if (!absolute_enabled) { 252 absolute_enabled = 1; 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); 333 334 gui_key_modifier_pressed = get_mod_state(); 335 336 if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) { 337 switch (ev->key.keysym.scancode) { 338 case SDL_SCANCODE_2: 339 case SDL_SCANCODE_3: 340 case SDL_SCANCODE_4: 341 case SDL_SCANCODE_5: 342 case SDL_SCANCODE_6: 343 case SDL_SCANCODE_7: 344 case SDL_SCANCODE_8: 345 case SDL_SCANCODE_9: 346 if (gui_grab) { 347 sdl_grab_end(scon); 348 } 349 350 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 351 if (win < sdl2_num_outputs) { 352 sdl2_console[win].hidden = !sdl2_console[win].hidden; 353 if (sdl2_console[win].real_window) { 354 if (sdl2_console[win].hidden) { 355 SDL_HideWindow(sdl2_console[win].real_window); 356 } else { 357 SDL_ShowWindow(sdl2_console[win].real_window); 358 } 359 } 360 gui_keysym = 1; 361 } 362 break; 363 case SDL_SCANCODE_F: 364 toggle_full_screen(scon); 365 gui_keysym = 1; 366 break; 367 case SDL_SCANCODE_U: 368 sdl2_window_destroy(scon); 369 sdl2_window_create(scon); 370 if (!scon->opengl) { 371 /* re-create scon->texture */ 372 sdl2_2d_switch(&scon->dcl, scon->surface); 373 } 374 gui_keysym = 1; 375 break; 376 #if 0 377 case SDL_SCANCODE_KP_PLUS: 378 case SDL_SCANCODE_KP_MINUS: 379 if (!gui_fullscreen) { 380 int scr_w, scr_h; 381 int width, height; 382 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 383 384 width = MAX(scr_w + (ev->key.keysym.scancode == 385 SDL_SCANCODE_KP_PLUS ? 50 : -50), 386 160); 387 height = (surface_height(scon->surface) * width) / 388 surface_width(scon->surface); 389 fprintf(stderr, "%s: scale to %dx%d\n", 390 __func__, width, height); 391 sdl_scale(scon, width, height); 392 sdl2_redraw(scon); 393 gui_keysym = 1; 394 } 395 #endif 396 default: 397 break; 398 } 399 } 400 if (!gui_keysym) { 401 sdl2_process_key(scon, &ev->key); 402 } 403 } 404 405 static void handle_keyup(SDL_Event *ev) 406 { 407 int mod_state; 408 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 409 410 scon->ignore_hotkeys = false; 411 412 if (!alt_grab) { 413 mod_state = (ev->key.keysym.mod & gui_grab_code); 414 } else { 415 mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT)); 416 } 417 if (!mod_state && gui_key_modifier_pressed) { 418 gui_key_modifier_pressed = 0; 419 if (gui_keysym == 0) { 420 /* exit/enter grab if pressing Ctrl-Alt */ 421 if (!gui_grab) { 422 sdl_grab_start(scon); 423 } else if (!gui_fullscreen) { 424 sdl_grab_end(scon); 425 } 426 /* SDL does not send back all the modifiers key, so we must 427 * correct it. */ 428 sdl2_reset_keys(scon); 429 return; 430 } 431 sdl2_reset_keys(scon); 432 gui_keysym = 0; 433 } 434 if (!gui_keysym) { 435 sdl2_process_key(scon, &ev->key); 436 } 437 } 438 439 static void handle_textinput(SDL_Event *ev) 440 { 441 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 442 QemuConsole *con = scon ? scon->dcl.con : NULL; 443 444 if (qemu_console_is_graphic(con)) { 445 return; 446 } 447 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 448 } 449 450 static void handle_mousemotion(SDL_Event *ev) 451 { 452 int max_x, max_y; 453 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 454 455 if (!qemu_console_is_graphic(scon->dcl.con)) { 456 return; 457 } 458 459 if (qemu_input_is_absolute() || absolute_enabled) { 460 int scr_w, scr_h; 461 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 462 max_x = scr_w - 1; 463 max_y = scr_h - 1; 464 if (gui_grab && !gui_fullscreen 465 && (ev->motion.x == 0 || ev->motion.y == 0 || 466 ev->motion.x == max_x || ev->motion.y == max_y)) { 467 sdl_grab_end(scon); 468 } 469 if (!gui_grab && 470 (ev->motion.x > 0 && ev->motion.x < max_x && 471 ev->motion.y > 0 && ev->motion.y < max_y)) { 472 sdl_grab_start(scon); 473 } 474 } 475 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 476 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 477 ev->motion.x, ev->motion.y, ev->motion.state); 478 } 479 } 480 481 static void handle_mousebutton(SDL_Event *ev) 482 { 483 int buttonstate = SDL_GetMouseState(NULL, NULL); 484 SDL_MouseButtonEvent *bev; 485 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 486 487 if (!qemu_console_is_graphic(scon->dcl.con)) { 488 return; 489 } 490 491 bev = &ev->button; 492 if (!gui_grab && !qemu_input_is_absolute()) { 493 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 494 /* start grabbing all events */ 495 sdl_grab_start(scon); 496 } 497 } else { 498 if (ev->type == SDL_MOUSEBUTTONDOWN) { 499 buttonstate |= SDL_BUTTON(bev->button); 500 } else { 501 buttonstate &= ~SDL_BUTTON(bev->button); 502 } 503 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 504 } 505 } 506 507 static void handle_mousewheel(SDL_Event *ev) 508 { 509 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 510 SDL_MouseWheelEvent *wev = &ev->wheel; 511 InputButton btn; 512 513 if (!qemu_console_is_graphic(scon->dcl.con)) { 514 return; 515 } 516 517 if (wev->y > 0) { 518 btn = INPUT_BUTTON_WHEEL_UP; 519 } else if (wev->y < 0) { 520 btn = INPUT_BUTTON_WHEEL_DOWN; 521 } else { 522 return; 523 } 524 525 qemu_input_queue_btn(scon->dcl.con, btn, true); 526 qemu_input_event_sync(); 527 qemu_input_queue_btn(scon->dcl.con, btn, false); 528 qemu_input_event_sync(); 529 } 530 531 static void handle_windowevent(SDL_Event *ev) 532 { 533 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 534 535 if (!scon) { 536 return; 537 } 538 539 switch (ev->window.event) { 540 case SDL_WINDOWEVENT_RESIZED: 541 { 542 QemuUIInfo info; 543 memset(&info, 0, sizeof(info)); 544 info.width = ev->window.data1; 545 info.height = ev->window.data2; 546 dpy_set_ui_info(scon->dcl.con, &info); 547 } 548 sdl2_redraw(scon); 549 break; 550 case SDL_WINDOWEVENT_EXPOSED: 551 sdl2_redraw(scon); 552 break; 553 case SDL_WINDOWEVENT_FOCUS_GAINED: 554 case SDL_WINDOWEVENT_ENTER: 555 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 556 absolute_mouse_grab(scon); 557 } 558 /* If a new console window opened using a hotkey receives the 559 * focus, SDL sends another KEYDOWN event to the new window, 560 * closing the console window immediately after. 561 * 562 * Work around this by ignoring further hotkey events until a 563 * key is released. 564 */ 565 scon->ignore_hotkeys = get_mod_state(); 566 break; 567 case SDL_WINDOWEVENT_FOCUS_LOST: 568 if (gui_grab && !gui_fullscreen) { 569 sdl_grab_end(scon); 570 } 571 break; 572 case SDL_WINDOWEVENT_RESTORED: 573 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 574 break; 575 case SDL_WINDOWEVENT_MINIMIZED: 576 update_displaychangelistener(&scon->dcl, 500); 577 break; 578 case SDL_WINDOWEVENT_CLOSE: 579 if (qemu_console_is_graphic(scon->dcl.con)) { 580 if (!no_quit) { 581 no_shutdown = 0; 582 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 583 } 584 } else { 585 SDL_HideWindow(scon->real_window); 586 scon->hidden = true; 587 } 588 break; 589 case SDL_WINDOWEVENT_SHOWN: 590 scon->hidden = false; 591 break; 592 case SDL_WINDOWEVENT_HIDDEN: 593 scon->hidden = true; 594 break; 595 } 596 } 597 598 void sdl2_poll_events(struct sdl2_console *scon) 599 { 600 SDL_Event ev1, *ev = &ev1; 601 int idle = 1; 602 603 if (scon->last_vm_running != runstate_is_running()) { 604 scon->last_vm_running = runstate_is_running(); 605 sdl_update_caption(scon); 606 } 607 608 while (SDL_PollEvent(ev)) { 609 switch (ev->type) { 610 case SDL_KEYDOWN: 611 idle = 0; 612 handle_keydown(ev); 613 break; 614 case SDL_KEYUP: 615 idle = 0; 616 handle_keyup(ev); 617 break; 618 case SDL_TEXTINPUT: 619 idle = 0; 620 handle_textinput(ev); 621 break; 622 case SDL_QUIT: 623 if (!no_quit) { 624 no_shutdown = 0; 625 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 626 } 627 break; 628 case SDL_MOUSEMOTION: 629 idle = 0; 630 handle_mousemotion(ev); 631 break; 632 case SDL_MOUSEBUTTONDOWN: 633 case SDL_MOUSEBUTTONUP: 634 idle = 0; 635 handle_mousebutton(ev); 636 break; 637 case SDL_MOUSEWHEEL: 638 idle = 0; 639 handle_mousewheel(ev); 640 break; 641 case SDL_WINDOWEVENT: 642 handle_windowevent(ev); 643 break; 644 default: 645 break; 646 } 647 } 648 649 if (idle) { 650 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 651 scon->idle_counter++; 652 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 653 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 654 } 655 } 656 } else { 657 scon->idle_counter = 0; 658 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 659 } 660 } 661 662 static void sdl_mouse_warp(DisplayChangeListener *dcl, 663 int x, int y, int on) 664 { 665 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 666 667 if (!qemu_console_is_graphic(scon->dcl.con)) { 668 return; 669 } 670 671 if (on) { 672 if (!guest_cursor) { 673 sdl_show_cursor(); 674 } 675 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 676 SDL_SetCursor(guest_sprite); 677 if (!qemu_input_is_absolute() && !absolute_enabled) { 678 SDL_WarpMouseInWindow(scon->real_window, x, y); 679 } 680 } 681 } else if (gui_grab) { 682 sdl_hide_cursor(); 683 } 684 guest_cursor = on; 685 guest_x = x, guest_y = y; 686 } 687 688 static void sdl_mouse_define(DisplayChangeListener *dcl, 689 QEMUCursor *c) 690 { 691 692 if (guest_sprite) { 693 SDL_FreeCursor(guest_sprite); 694 } 695 696 if (guest_sprite_surface) { 697 SDL_FreeSurface(guest_sprite_surface); 698 } 699 700 guest_sprite_surface = 701 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 702 0xff0000, 0x00ff00, 0xff, 0xff000000); 703 704 if (!guest_sprite_surface) { 705 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 706 return; 707 } 708 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 709 c->hot_x, c->hot_y); 710 if (!guest_sprite) { 711 fprintf(stderr, "Failed to make color cursor from %p\n", c); 712 return; 713 } 714 if (guest_cursor && 715 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 716 SDL_SetCursor(guest_sprite); 717 } 718 } 719 720 static void sdl_cleanup(void) 721 { 722 if (guest_sprite) { 723 SDL_FreeCursor(guest_sprite); 724 } 725 SDL_QuitSubSystem(SDL_INIT_VIDEO); 726 } 727 728 static const DisplayChangeListenerOps dcl_2d_ops = { 729 .dpy_name = "sdl2-2d", 730 .dpy_gfx_update = sdl2_2d_update, 731 .dpy_gfx_switch = sdl2_2d_switch, 732 .dpy_gfx_check_format = sdl2_2d_check_format, 733 .dpy_refresh = sdl2_2d_refresh, 734 .dpy_mouse_set = sdl_mouse_warp, 735 .dpy_cursor_define = sdl_mouse_define, 736 }; 737 738 #ifdef CONFIG_OPENGL 739 static const DisplayChangeListenerOps dcl_gl_ops = { 740 .dpy_name = "sdl2-gl", 741 .dpy_gfx_update = sdl2_gl_update, 742 .dpy_gfx_switch = sdl2_gl_switch, 743 .dpy_gfx_check_format = console_gl_check_format, 744 .dpy_refresh = sdl2_gl_refresh, 745 .dpy_mouse_set = sdl_mouse_warp, 746 .dpy_cursor_define = sdl_mouse_define, 747 748 .dpy_gl_ctx_create = sdl2_gl_create_context, 749 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 750 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 751 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, 752 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 753 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 754 .dpy_gl_update = sdl2_gl_scanout_flush, 755 }; 756 #endif 757 758 void sdl_display_early_init(int opengl) 759 { 760 switch (opengl) { 761 case -1: /* default */ 762 case 0: /* off */ 763 break; 764 case 1: /* on */ 765 #ifdef CONFIG_OPENGL 766 display_opengl = 1; 767 #endif 768 break; 769 default: 770 g_assert_not_reached(); 771 break; 772 } 773 } 774 775 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame) 776 { 777 int flags; 778 uint8_t data = 0; 779 char *filename; 780 int i; 781 SDL_SysWMinfo info; 782 783 if (no_frame) { 784 gui_noframe = 1; 785 } 786 787 #ifdef __linux__ 788 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 789 * accessible $DISPLAY to open X11 window. This is often the case 790 * when qemu is run using sudo. But in this case, and when actually 791 * run in X11 environment, SDL fights with X11 for the video card, 792 * making current display unavailable, often until reboot. 793 * So make x11 the default SDL video driver if this variable is unset. 794 * This is a bit hackish but saves us from bigger problem. 795 * Maybe it's a good idea to fix this in SDL instead. 796 */ 797 setenv("SDL_VIDEODRIVER", "x11", 0); 798 #endif 799 800 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; 801 if (SDL_Init(flags)) { 802 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 803 SDL_GetError()); 804 exit(1); 805 } 806 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 807 memset(&info, 0, sizeof(info)); 808 SDL_VERSION(&info.version); 809 810 for (i = 0;; i++) { 811 QemuConsole *con = qemu_console_lookup_by_index(i); 812 if (!con) { 813 break; 814 } 815 } 816 sdl2_num_outputs = i; 817 if (sdl2_num_outputs == 0) { 818 return; 819 } 820 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 821 for (i = 0; i < sdl2_num_outputs; i++) { 822 QemuConsole *con = qemu_console_lookup_by_index(i); 823 assert(con != NULL); 824 if (!qemu_console_is_graphic(con)) { 825 sdl2_console[i].hidden = true; 826 } 827 sdl2_console[i].idx = i; 828 #ifdef CONFIG_OPENGL 829 sdl2_console[i].opengl = display_opengl; 830 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 831 #else 832 sdl2_console[i].opengl = 0; 833 sdl2_console[i].dcl.ops = &dcl_2d_ops; 834 #endif 835 sdl2_console[i].dcl.con = con; 836 register_displaychangelistener(&sdl2_console[i].dcl); 837 838 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 839 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 840 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 841 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 842 #elif defined(SDL_VIDEO_DRIVER_X11) 843 qemu_console_set_window_id(con, info.info.x11.window); 844 #endif 845 } 846 #endif 847 } 848 849 /* Load a 32x32x4 image. White pixels are transparent. */ 850 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp"); 851 if (filename) { 852 SDL_Surface *image = SDL_LoadBMP(filename); 853 if (image) { 854 uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255); 855 SDL_SetColorKey(image, SDL_TRUE, colorkey); 856 SDL_SetWindowIcon(sdl2_console[0].real_window, image); 857 } 858 g_free(filename); 859 } 860 861 if (full_screen) { 862 gui_fullscreen = 1; 863 sdl_grab_start(0); 864 } 865 866 mouse_mode_notifier.notify = sdl_mouse_mode_change; 867 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 868 869 gui_grab = 0; 870 871 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 872 sdl_cursor_normal = SDL_GetCursor(); 873 874 atexit(sdl_cleanup); 875 } 876