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 /* Avoid compiler warning because macro is redefined in SDL_syswm.h. */ 27 #undef WIN32_LEAN_AND_MEAN 28 29 #include <SDL.h> 30 #include <SDL_syswm.h> 31 32 #include "qemu-common.h" 33 #include "ui/console.h" 34 #include "ui/input.h" 35 #include "ui/sdl2.h" 36 #include "sysemu/sysemu.h" 37 38 static int sdl2_num_outputs; 39 static struct sdl2_console *sdl2_console; 40 41 static SDL_Surface *guest_sprite_surface; 42 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ 43 44 static int gui_saved_grab; 45 static int gui_fullscreen; 46 static int gui_noframe; 47 static int gui_key_modifier_pressed; 48 static int gui_keysym; 49 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL; 50 static SDL_Cursor *sdl_cursor_normal; 51 static SDL_Cursor *sdl_cursor_hidden; 52 static int absolute_enabled; 53 static int guest_cursor; 54 static int guest_x, guest_y; 55 static SDL_Cursor *guest_sprite; 56 static Notifier mouse_mode_notifier; 57 58 static void sdl_update_caption(struct sdl2_console *scon); 59 60 static struct sdl2_console *get_scon_from_window(uint32_t window_id) 61 { 62 int i; 63 for (i = 0; i < sdl2_num_outputs; i++) { 64 if (sdl2_console[i].real_window == SDL_GetWindowFromID(window_id)) { 65 return &sdl2_console[i]; 66 } 67 } 68 return NULL; 69 } 70 71 void sdl2_window_create(struct sdl2_console *scon) 72 { 73 int flags = 0; 74 75 if (!scon->surface) { 76 return; 77 } 78 assert(!scon->real_window); 79 80 if (gui_fullscreen) { 81 flags |= SDL_WINDOW_FULLSCREEN_DESKTOP; 82 } else { 83 flags |= SDL_WINDOW_RESIZABLE; 84 } 85 if (scon->hidden) { 86 flags |= SDL_WINDOW_HIDDEN; 87 } 88 89 scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, 90 SDL_WINDOWPOS_UNDEFINED, 91 surface_width(scon->surface), 92 surface_height(scon->surface), 93 flags); 94 scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0); 95 sdl_update_caption(scon); 96 } 97 98 void sdl2_window_destroy(struct sdl2_console *scon) 99 { 100 if (!scon->real_window) { 101 return; 102 } 103 104 SDL_DestroyRenderer(scon->real_renderer); 105 scon->real_renderer = NULL; 106 SDL_DestroyWindow(scon->real_window); 107 scon->real_window = NULL; 108 } 109 110 void sdl2_window_resize(struct sdl2_console *scon) 111 { 112 if (!scon->real_window) { 113 return; 114 } 115 116 SDL_SetWindowSize(scon->real_window, 117 surface_width(scon->surface), 118 surface_height(scon->surface)); 119 } 120 121 static void sdl_update_caption(struct sdl2_console *scon) 122 { 123 char win_title[1024]; 124 char icon_title[1024]; 125 const char *status = ""; 126 127 if (!runstate_is_running()) { 128 status = " [Stopped]"; 129 } else if (gui_grab) { 130 if (alt_grab) { 131 status = " - Press Ctrl-Alt-Shift to exit grab"; 132 } else if (ctrl_grab) { 133 status = " - Press Right-Ctrl to exit grab"; 134 } else { 135 status = " - Press Ctrl-Alt to exit grab"; 136 } 137 } 138 139 if (qemu_name) { 140 snprintf(win_title, sizeof(win_title), "QEMU (%s-%d)%s", qemu_name, 141 scon->idx, status); 142 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name); 143 } else { 144 snprintf(win_title, sizeof(win_title), "QEMU%s", status); 145 snprintf(icon_title, sizeof(icon_title), "QEMU"); 146 } 147 148 if (scon->real_window) { 149 SDL_SetWindowTitle(scon->real_window, win_title); 150 } 151 } 152 153 static void sdl_hide_cursor(void) 154 { 155 if (!cursor_hide) { 156 return; 157 } 158 159 if (qemu_input_is_absolute()) { 160 SDL_ShowCursor(1); 161 SDL_SetCursor(sdl_cursor_hidden); 162 } else { 163 SDL_SetRelativeMouseMode(SDL_TRUE); 164 } 165 } 166 167 static void sdl_show_cursor(void) 168 { 169 if (!cursor_hide) { 170 return; 171 } 172 173 if (!qemu_input_is_absolute()) { 174 SDL_SetRelativeMouseMode(SDL_FALSE); 175 SDL_ShowCursor(1); 176 if (guest_cursor && 177 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 178 SDL_SetCursor(guest_sprite); 179 } else { 180 SDL_SetCursor(sdl_cursor_normal); 181 } 182 } 183 } 184 185 static void sdl_grab_start(struct sdl2_console *scon) 186 { 187 QemuConsole *con = scon ? scon->dcl.con : NULL; 188 189 if (!con || !qemu_console_is_graphic(con)) { 190 return; 191 } 192 /* 193 * If the application is not active, do not try to enter grab state. This 194 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the 195 * application (SDL bug). 196 */ 197 if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) { 198 return; 199 } 200 if (guest_cursor) { 201 SDL_SetCursor(guest_sprite); 202 if (!qemu_input_is_absolute() && !absolute_enabled) { 203 SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y); 204 } 205 } else { 206 sdl_hide_cursor(); 207 } 208 SDL_SetWindowGrab(scon->real_window, SDL_TRUE); 209 gui_grab = 1; 210 sdl_update_caption(scon); 211 } 212 213 static void sdl_grab_end(struct sdl2_console *scon) 214 { 215 SDL_SetWindowGrab(scon->real_window, SDL_FALSE); 216 gui_grab = 0; 217 sdl_show_cursor(); 218 sdl_update_caption(scon); 219 } 220 221 static void absolute_mouse_grab(struct sdl2_console *scon) 222 { 223 int mouse_x, mouse_y; 224 int scr_w, scr_h; 225 SDL_GetMouseState(&mouse_x, &mouse_y); 226 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 227 if (mouse_x > 0 && mouse_x < scr_w - 1 && 228 mouse_y > 0 && mouse_y < scr_h - 1) { 229 sdl_grab_start(scon); 230 } 231 } 232 233 static void sdl_mouse_mode_change(Notifier *notify, void *data) 234 { 235 if (qemu_input_is_absolute()) { 236 if (!absolute_enabled) { 237 absolute_enabled = 1; 238 absolute_mouse_grab(&sdl2_console[0]); 239 } 240 } else if (absolute_enabled) { 241 if (!gui_fullscreen) { 242 sdl_grab_end(&sdl2_console[0]); 243 } 244 absolute_enabled = 0; 245 } 246 } 247 248 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy, 249 int x, int y, int state) 250 { 251 static uint32_t bmap[INPUT_BUTTON_MAX] = { 252 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT), 253 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE), 254 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT), 255 }; 256 static uint32_t prev_state; 257 258 if (prev_state != state) { 259 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); 260 prev_state = state; 261 } 262 263 if (qemu_input_is_absolute()) { 264 int scr_w, scr_h; 265 int max_w = 0, max_h = 0; 266 int off_x = 0, off_y = 0; 267 int cur_off_x = 0, cur_off_y = 0; 268 int i; 269 270 for (i = 0; i < sdl2_num_outputs; i++) { 271 struct sdl2_console *thiscon = &sdl2_console[i]; 272 if (thiscon->real_window && thiscon->surface) { 273 SDL_GetWindowSize(thiscon->real_window, &scr_w, &scr_h); 274 cur_off_x = thiscon->x; 275 cur_off_y = thiscon->y; 276 if (scr_w + cur_off_x > max_w) { 277 max_w = scr_w + cur_off_x; 278 } 279 if (scr_h + cur_off_y > max_h) { 280 max_h = scr_h + cur_off_y; 281 } 282 if (i == scon->idx) { 283 off_x = cur_off_x; 284 off_y = cur_off_y; 285 } 286 } 287 } 288 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, off_x + x, max_w); 289 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, off_y + y, max_h); 290 } else { 291 if (guest_cursor) { 292 x -= guest_x; 293 y -= guest_y; 294 guest_x += x; 295 guest_y += y; 296 dx = x; 297 dy = y; 298 } 299 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 300 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 301 } 302 qemu_input_event_sync(); 303 } 304 305 static void toggle_full_screen(struct sdl2_console *scon) 306 { 307 gui_fullscreen = !gui_fullscreen; 308 if (gui_fullscreen) { 309 SDL_SetWindowFullscreen(scon->real_window, 310 SDL_WINDOW_FULLSCREEN_DESKTOP); 311 gui_saved_grab = gui_grab; 312 sdl_grab_start(scon); 313 } else { 314 if (!gui_saved_grab) { 315 sdl_grab_end(scon); 316 } 317 SDL_SetWindowFullscreen(scon->real_window, 0); 318 } 319 sdl2_2d_redraw(scon); 320 } 321 322 static void handle_keydown(SDL_Event *ev) 323 { 324 int mod_state, win; 325 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 326 327 if (alt_grab) { 328 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) == 329 (gui_grab_code | KMOD_LSHIFT); 330 } else if (ctrl_grab) { 331 mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL; 332 } else { 333 mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code; 334 } 335 gui_key_modifier_pressed = mod_state; 336 337 if (gui_key_modifier_pressed) { 338 switch (ev->key.keysym.scancode) { 339 case SDL_SCANCODE_2: 340 case SDL_SCANCODE_3: 341 case SDL_SCANCODE_4: 342 case SDL_SCANCODE_5: 343 case SDL_SCANCODE_6: 344 case SDL_SCANCODE_7: 345 case SDL_SCANCODE_8: 346 case SDL_SCANCODE_9: 347 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 348 if (win < sdl2_num_outputs) { 349 sdl2_console[win].hidden = !sdl2_console[win].hidden; 350 if (sdl2_console[win].real_window) { 351 if (sdl2_console[win].hidden) { 352 SDL_HideWindow(sdl2_console[win].real_window); 353 } else { 354 SDL_ShowWindow(sdl2_console[win].real_window); 355 } 356 } 357 gui_keysym = 1; 358 } 359 break; 360 case SDL_SCANCODE_F: 361 toggle_full_screen(scon); 362 gui_keysym = 1; 363 break; 364 case SDL_SCANCODE_U: 365 sdl2_window_destroy(scon); 366 sdl2_window_create(scon); 367 /* re-create texture */ 368 sdl2_2d_switch(&scon->dcl, scon->surface); 369 gui_keysym = 1; 370 break; 371 #if 0 372 case SDL_SCANCODE_KP_PLUS: 373 case SDL_SCANCODE_KP_MINUS: 374 if (!gui_fullscreen) { 375 int scr_w, scr_h; 376 int width, height; 377 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 378 379 width = MAX(scr_w + (ev->key.keysym.scancode == 380 SDL_SCANCODE_KP_PLUS ? 50 : -50), 381 160); 382 height = (surface_height(scon->surface) * width) / 383 surface_width(scon->surface); 384 fprintf(stderr, "%s: scale to %dx%d\n", 385 __func__, width, height); 386 sdl_scale(scon, width, height); 387 sdl2_2d_redraw(scon); 388 gui_keysym = 1; 389 } 390 #endif 391 default: 392 break; 393 } 394 } 395 if (!gui_keysym) { 396 sdl2_process_key(scon, &ev->key); 397 } 398 } 399 400 static void handle_keyup(SDL_Event *ev) 401 { 402 int mod_state; 403 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 404 405 if (!alt_grab) { 406 mod_state = (ev->key.keysym.mod & gui_grab_code); 407 } else { 408 mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT)); 409 } 410 if (!mod_state && gui_key_modifier_pressed) { 411 gui_key_modifier_pressed = 0; 412 if (gui_keysym == 0) { 413 /* exit/enter grab if pressing Ctrl-Alt */ 414 if (!gui_grab) { 415 sdl_grab_start(scon); 416 } else if (!gui_fullscreen) { 417 sdl_grab_end(scon); 418 } 419 /* SDL does not send back all the modifiers key, so we must 420 * correct it. */ 421 sdl2_reset_keys(scon); 422 return; 423 } 424 gui_keysym = 0; 425 } 426 if (!gui_keysym) { 427 sdl2_process_key(scon, &ev->key); 428 } 429 } 430 431 static void handle_textinput(SDL_Event *ev) 432 { 433 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 434 QemuConsole *con = scon ? scon->dcl.con : NULL; 435 436 if (qemu_console_is_graphic(con)) { 437 return; 438 } 439 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 440 } 441 442 static void handle_mousemotion(SDL_Event *ev) 443 { 444 int max_x, max_y; 445 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 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 && (ev->motion.x == 0 || ev->motion.y == 0 || 453 ev->motion.x == max_x || ev->motion.y == max_y)) { 454 sdl_grab_end(scon); 455 } 456 if (!gui_grab && 457 (ev->motion.x > 0 && ev->motion.x < max_x && 458 ev->motion.y > 0 && ev->motion.y < max_y)) { 459 sdl_grab_start(scon); 460 } 461 } 462 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 463 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 464 ev->motion.x, ev->motion.y, ev->motion.state); 465 } 466 } 467 468 static void handle_mousebutton(SDL_Event *ev) 469 { 470 int buttonstate = SDL_GetMouseState(NULL, NULL); 471 SDL_MouseButtonEvent *bev; 472 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 473 474 bev = &ev->button; 475 if (!gui_grab && !qemu_input_is_absolute()) { 476 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 477 /* start grabbing all events */ 478 sdl_grab_start(scon); 479 } 480 } else { 481 if (ev->type == SDL_MOUSEBUTTONDOWN) { 482 buttonstate |= SDL_BUTTON(bev->button); 483 } else { 484 buttonstate &= ~SDL_BUTTON(bev->button); 485 } 486 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 487 } 488 } 489 490 static void handle_mousewheel(SDL_Event *ev) 491 { 492 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 493 SDL_MouseWheelEvent *wev = &ev->wheel; 494 InputButton btn; 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); 513 514 switch (ev->window.event) { 515 case SDL_WINDOWEVENT_RESIZED: 516 { 517 QemuUIInfo info; 518 memset(&info, 0, sizeof(info)); 519 info.width = ev->window.data1; 520 info.height = ev->window.data2; 521 dpy_set_ui_info(scon->dcl.con, &info); 522 } 523 sdl2_2d_redraw(scon); 524 break; 525 case SDL_WINDOWEVENT_EXPOSED: 526 sdl2_2d_redraw(scon); 527 break; 528 case SDL_WINDOWEVENT_FOCUS_GAINED: 529 case SDL_WINDOWEVENT_ENTER: 530 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 531 absolute_mouse_grab(scon); 532 } 533 break; 534 case SDL_WINDOWEVENT_FOCUS_LOST: 535 if (gui_grab && !gui_fullscreen) { 536 sdl_grab_end(scon); 537 } 538 break; 539 case SDL_WINDOWEVENT_RESTORED: 540 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 541 break; 542 case SDL_WINDOWEVENT_MINIMIZED: 543 update_displaychangelistener(&scon->dcl, 500); 544 break; 545 case SDL_WINDOWEVENT_CLOSE: 546 if (!no_quit) { 547 no_shutdown = 0; 548 qemu_system_shutdown_request(); 549 } 550 break; 551 case SDL_WINDOWEVENT_SHOWN: 552 if (scon->hidden) { 553 SDL_HideWindow(scon->real_window); 554 } 555 break; 556 case SDL_WINDOWEVENT_HIDDEN: 557 if (!scon->hidden) { 558 SDL_ShowWindow(scon->real_window); 559 } 560 break; 561 } 562 } 563 564 void sdl2_poll_events(struct sdl2_console *scon) 565 { 566 SDL_Event ev1, *ev = &ev1; 567 568 if (scon->last_vm_running != runstate_is_running()) { 569 scon->last_vm_running = runstate_is_running(); 570 sdl_update_caption(scon); 571 } 572 573 while (SDL_PollEvent(ev)) { 574 switch (ev->type) { 575 case SDL_KEYDOWN: 576 handle_keydown(ev); 577 break; 578 case SDL_KEYUP: 579 handle_keyup(ev); 580 break; 581 case SDL_TEXTINPUT: 582 handle_textinput(ev); 583 break; 584 case SDL_QUIT: 585 if (!no_quit) { 586 no_shutdown = 0; 587 qemu_system_shutdown_request(); 588 } 589 break; 590 case SDL_MOUSEMOTION: 591 handle_mousemotion(ev); 592 break; 593 case SDL_MOUSEBUTTONDOWN: 594 case SDL_MOUSEBUTTONUP: 595 handle_mousebutton(ev); 596 break; 597 case SDL_MOUSEWHEEL: 598 handle_mousewheel(ev); 599 break; 600 case SDL_WINDOWEVENT: 601 handle_windowevent(ev); 602 break; 603 default: 604 break; 605 } 606 } 607 } 608 609 static void sdl_mouse_warp(DisplayChangeListener *dcl, 610 int x, int y, int on) 611 { 612 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 613 if (on) { 614 if (!guest_cursor) { 615 sdl_show_cursor(); 616 } 617 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 618 SDL_SetCursor(guest_sprite); 619 if (!qemu_input_is_absolute() && !absolute_enabled) { 620 SDL_WarpMouseInWindow(scon->real_window, x, y); 621 } 622 } 623 } else if (gui_grab) { 624 sdl_hide_cursor(); 625 } 626 guest_cursor = on; 627 guest_x = x, guest_y = y; 628 } 629 630 static void sdl_mouse_define(DisplayChangeListener *dcl, 631 QEMUCursor *c) 632 { 633 634 if (guest_sprite) { 635 SDL_FreeCursor(guest_sprite); 636 } 637 638 if (guest_sprite_surface) { 639 SDL_FreeSurface(guest_sprite_surface); 640 } 641 642 guest_sprite_surface = 643 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 644 0xff0000, 0x00ff00, 0xff, 0xff000000); 645 646 if (!guest_sprite_surface) { 647 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 648 return; 649 } 650 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 651 c->hot_x, c->hot_y); 652 if (!guest_sprite) { 653 fprintf(stderr, "Failed to make color cursor from %p\n", c); 654 return; 655 } 656 if (guest_cursor && 657 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 658 SDL_SetCursor(guest_sprite); 659 } 660 } 661 662 static void sdl_cleanup(void) 663 { 664 if (guest_sprite) { 665 SDL_FreeCursor(guest_sprite); 666 } 667 SDL_QuitSubSystem(SDL_INIT_VIDEO); 668 } 669 670 static const DisplayChangeListenerOps dcl_2d_ops = { 671 .dpy_name = "sdl2-2d", 672 .dpy_gfx_update = sdl2_2d_update, 673 .dpy_gfx_switch = sdl2_2d_switch, 674 .dpy_refresh = sdl2_2d_refresh, 675 .dpy_mouse_set = sdl_mouse_warp, 676 .dpy_cursor_define = sdl_mouse_define, 677 }; 678 679 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame) 680 { 681 int flags; 682 uint8_t data = 0; 683 char *filename; 684 int i; 685 686 if (no_frame) { 687 gui_noframe = 1; 688 } 689 690 #ifdef __linux__ 691 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 692 * accessible $DISPLAY to open X11 window. This is often the case 693 * when qemu is run using sudo. But in this case, and when actually 694 * run in X11 environment, SDL fights with X11 for the video card, 695 * making current display unavailable, often until reboot. 696 * So make x11 the default SDL video driver if this variable is unset. 697 * This is a bit hackish but saves us from bigger problem. 698 * Maybe it's a good idea to fix this in SDL instead. 699 */ 700 setenv("SDL_VIDEODRIVER", "x11", 0); 701 #endif 702 703 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; 704 if (SDL_Init(flags)) { 705 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 706 SDL_GetError()); 707 exit(1); 708 } 709 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 710 711 for (i = 0;; i++) { 712 QemuConsole *con = qemu_console_lookup_by_index(i); 713 if (!con) { 714 break; 715 } 716 } 717 sdl2_num_outputs = i; 718 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 719 for (i = 0; i < sdl2_num_outputs; i++) { 720 QemuConsole *con = qemu_console_lookup_by_index(i); 721 if (!qemu_console_is_graphic(con)) { 722 sdl2_console[i].hidden = true; 723 } 724 sdl2_console[i].dcl.ops = &dcl_2d_ops; 725 sdl2_console[i].dcl.con = con; 726 register_displaychangelistener(&sdl2_console[i].dcl); 727 sdl2_console[i].idx = i; 728 } 729 730 /* Load a 32x32x4 image. White pixels are transparent. */ 731 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp"); 732 if (filename) { 733 SDL_Surface *image = SDL_LoadBMP(filename); 734 if (image) { 735 uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255); 736 SDL_SetColorKey(image, SDL_TRUE, colorkey); 737 SDL_SetWindowIcon(sdl2_console[0].real_window, image); 738 } 739 g_free(filename); 740 } 741 742 if (full_screen) { 743 gui_fullscreen = 1; 744 sdl_grab_start(0); 745 } 746 747 mouse_mode_notifier.notify = sdl_mouse_mode_change; 748 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 749 750 gui_grab = 0; 751 752 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 753 sdl_cursor_normal = SDL_GetCursor(); 754 755 atexit(sdl_cleanup); 756 } 757