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_key_modifier_pressed; 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); 333 334 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_G: 368 gui_keysym = 1; 369 if (!gui_grab) { 370 sdl_grab_start(scon); 371 } else if (!gui_fullscreen) { 372 sdl_grab_end(scon); 373 } 374 break; 375 case SDL_SCANCODE_U: 376 sdl2_window_destroy(scon); 377 sdl2_window_create(scon); 378 if (!scon->opengl) { 379 /* re-create scon->texture */ 380 sdl2_2d_switch(&scon->dcl, scon->surface); 381 } 382 gui_keysym = 1; 383 break; 384 #if 0 385 case SDL_SCANCODE_KP_PLUS: 386 case SDL_SCANCODE_KP_MINUS: 387 if (!gui_fullscreen) { 388 int scr_w, scr_h; 389 int width, height; 390 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 391 392 width = MAX(scr_w + (ev->key.keysym.scancode == 393 SDL_SCANCODE_KP_PLUS ? 50 : -50), 394 160); 395 height = (surface_height(scon->surface) * width) / 396 surface_width(scon->surface); 397 fprintf(stderr, "%s: scale to %dx%d\n", 398 __func__, width, height); 399 sdl_scale(scon, width, height); 400 sdl2_redraw(scon); 401 gui_keysym = 1; 402 } 403 #endif 404 default: 405 break; 406 } 407 } 408 if (!gui_keysym) { 409 sdl2_process_key(scon, &ev->key); 410 } 411 } 412 413 static void handle_keyup(SDL_Event *ev) 414 { 415 int mod_state; 416 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 417 418 scon->ignore_hotkeys = false; 419 420 if (!alt_grab) { 421 mod_state = (ev->key.keysym.mod & gui_grab_code); 422 } else { 423 mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT)); 424 } 425 if (!mod_state && gui_key_modifier_pressed) { 426 gui_key_modifier_pressed = 0; 427 gui_keysym = 0; 428 } 429 if (!gui_keysym) { 430 sdl2_process_key(scon, &ev->key); 431 } 432 } 433 434 static void handle_textinput(SDL_Event *ev) 435 { 436 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 437 QemuConsole *con = scon ? scon->dcl.con : NULL; 438 439 if (qemu_console_is_graphic(con)) { 440 return; 441 } 442 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 443 } 444 445 static void handle_mousemotion(SDL_Event *ev) 446 { 447 int max_x, max_y; 448 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 449 450 if (!qemu_console_is_graphic(scon->dcl.con)) { 451 return; 452 } 453 454 if (qemu_input_is_absolute() || absolute_enabled) { 455 int scr_w, scr_h; 456 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 457 max_x = scr_w - 1; 458 max_y = scr_h - 1; 459 if (gui_grab && !gui_fullscreen 460 && (ev->motion.x == 0 || ev->motion.y == 0 || 461 ev->motion.x == max_x || ev->motion.y == max_y)) { 462 sdl_grab_end(scon); 463 } 464 if (!gui_grab && 465 (ev->motion.x > 0 && ev->motion.x < max_x && 466 ev->motion.y > 0 && ev->motion.y < max_y)) { 467 sdl_grab_start(scon); 468 } 469 } 470 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 471 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 472 ev->motion.x, ev->motion.y, ev->motion.state); 473 } 474 } 475 476 static void handle_mousebutton(SDL_Event *ev) 477 { 478 int buttonstate = SDL_GetMouseState(NULL, NULL); 479 SDL_MouseButtonEvent *bev; 480 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 481 482 if (!qemu_console_is_graphic(scon->dcl.con)) { 483 return; 484 } 485 486 bev = &ev->button; 487 if (!gui_grab && !qemu_input_is_absolute()) { 488 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 489 /* start grabbing all events */ 490 sdl_grab_start(scon); 491 } 492 } else { 493 if (ev->type == SDL_MOUSEBUTTONDOWN) { 494 buttonstate |= SDL_BUTTON(bev->button); 495 } else { 496 buttonstate &= ~SDL_BUTTON(bev->button); 497 } 498 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 499 } 500 } 501 502 static void handle_mousewheel(SDL_Event *ev) 503 { 504 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 505 SDL_MouseWheelEvent *wev = &ev->wheel; 506 InputButton btn; 507 508 if (!qemu_console_is_graphic(scon->dcl.con)) { 509 return; 510 } 511 512 if (wev->y > 0) { 513 btn = INPUT_BUTTON_WHEEL_UP; 514 } else if (wev->y < 0) { 515 btn = INPUT_BUTTON_WHEEL_DOWN; 516 } else { 517 return; 518 } 519 520 qemu_input_queue_btn(scon->dcl.con, btn, true); 521 qemu_input_event_sync(); 522 qemu_input_queue_btn(scon->dcl.con, btn, false); 523 qemu_input_event_sync(); 524 } 525 526 static void handle_windowevent(SDL_Event *ev) 527 { 528 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 529 530 if (!scon) { 531 return; 532 } 533 534 switch (ev->window.event) { 535 case SDL_WINDOWEVENT_RESIZED: 536 { 537 QemuUIInfo info; 538 memset(&info, 0, sizeof(info)); 539 info.width = ev->window.data1; 540 info.height = ev->window.data2; 541 dpy_set_ui_info(scon->dcl.con, &info); 542 } 543 sdl2_redraw(scon); 544 break; 545 case SDL_WINDOWEVENT_EXPOSED: 546 sdl2_redraw(scon); 547 break; 548 case SDL_WINDOWEVENT_FOCUS_GAINED: 549 case SDL_WINDOWEVENT_ENTER: 550 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 551 absolute_mouse_grab(scon); 552 } 553 /* If a new console window opened using a hotkey receives the 554 * focus, SDL sends another KEYDOWN event to the new window, 555 * closing the console window immediately after. 556 * 557 * Work around this by ignoring further hotkey events until a 558 * key is released. 559 */ 560 scon->ignore_hotkeys = get_mod_state(); 561 break; 562 case SDL_WINDOWEVENT_FOCUS_LOST: 563 if (gui_grab && !gui_fullscreen) { 564 sdl_grab_end(scon); 565 } 566 break; 567 case SDL_WINDOWEVENT_RESTORED: 568 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 569 break; 570 case SDL_WINDOWEVENT_MINIMIZED: 571 update_displaychangelistener(&scon->dcl, 500); 572 break; 573 case SDL_WINDOWEVENT_CLOSE: 574 if (qemu_console_is_graphic(scon->dcl.con)) { 575 if (!no_quit) { 576 no_shutdown = 0; 577 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 578 } 579 } else { 580 SDL_HideWindow(scon->real_window); 581 scon->hidden = true; 582 } 583 break; 584 case SDL_WINDOWEVENT_SHOWN: 585 scon->hidden = false; 586 break; 587 case SDL_WINDOWEVENT_HIDDEN: 588 scon->hidden = true; 589 break; 590 } 591 } 592 593 void sdl2_poll_events(struct sdl2_console *scon) 594 { 595 SDL_Event ev1, *ev = &ev1; 596 int idle = 1; 597 598 if (scon->last_vm_running != runstate_is_running()) { 599 scon->last_vm_running = runstate_is_running(); 600 sdl_update_caption(scon); 601 } 602 603 while (SDL_PollEvent(ev)) { 604 switch (ev->type) { 605 case SDL_KEYDOWN: 606 idle = 0; 607 handle_keydown(ev); 608 break; 609 case SDL_KEYUP: 610 idle = 0; 611 handle_keyup(ev); 612 break; 613 case SDL_TEXTINPUT: 614 idle = 0; 615 handle_textinput(ev); 616 break; 617 case SDL_QUIT: 618 if (!no_quit) { 619 no_shutdown = 0; 620 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 621 } 622 break; 623 case SDL_MOUSEMOTION: 624 idle = 0; 625 handle_mousemotion(ev); 626 break; 627 case SDL_MOUSEBUTTONDOWN: 628 case SDL_MOUSEBUTTONUP: 629 idle = 0; 630 handle_mousebutton(ev); 631 break; 632 case SDL_MOUSEWHEEL: 633 idle = 0; 634 handle_mousewheel(ev); 635 break; 636 case SDL_WINDOWEVENT: 637 handle_windowevent(ev); 638 break; 639 default: 640 break; 641 } 642 } 643 644 if (idle) { 645 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 646 scon->idle_counter++; 647 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 648 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 649 } 650 } 651 } else { 652 scon->idle_counter = 0; 653 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 654 } 655 } 656 657 static void sdl_mouse_warp(DisplayChangeListener *dcl, 658 int x, int y, int on) 659 { 660 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 661 662 if (!qemu_console_is_graphic(scon->dcl.con)) { 663 return; 664 } 665 666 if (on) { 667 if (!guest_cursor) { 668 sdl_show_cursor(); 669 } 670 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 671 SDL_SetCursor(guest_sprite); 672 if (!qemu_input_is_absolute() && !absolute_enabled) { 673 SDL_WarpMouseInWindow(scon->real_window, x, y); 674 } 675 } 676 } else if (gui_grab) { 677 sdl_hide_cursor(); 678 } 679 guest_cursor = on; 680 guest_x = x, guest_y = y; 681 } 682 683 static void sdl_mouse_define(DisplayChangeListener *dcl, 684 QEMUCursor *c) 685 { 686 687 if (guest_sprite) { 688 SDL_FreeCursor(guest_sprite); 689 } 690 691 if (guest_sprite_surface) { 692 SDL_FreeSurface(guest_sprite_surface); 693 } 694 695 guest_sprite_surface = 696 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 697 0xff0000, 0x00ff00, 0xff, 0xff000000); 698 699 if (!guest_sprite_surface) { 700 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 701 return; 702 } 703 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 704 c->hot_x, c->hot_y); 705 if (!guest_sprite) { 706 fprintf(stderr, "Failed to make color cursor from %p\n", c); 707 return; 708 } 709 if (guest_cursor && 710 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 711 SDL_SetCursor(guest_sprite); 712 } 713 } 714 715 static void sdl_cleanup(void) 716 { 717 if (guest_sprite) { 718 SDL_FreeCursor(guest_sprite); 719 } 720 SDL_QuitSubSystem(SDL_INIT_VIDEO); 721 } 722 723 static const DisplayChangeListenerOps dcl_2d_ops = { 724 .dpy_name = "sdl2-2d", 725 .dpy_gfx_update = sdl2_2d_update, 726 .dpy_gfx_switch = sdl2_2d_switch, 727 .dpy_gfx_check_format = sdl2_2d_check_format, 728 .dpy_refresh = sdl2_2d_refresh, 729 .dpy_mouse_set = sdl_mouse_warp, 730 .dpy_cursor_define = sdl_mouse_define, 731 }; 732 733 #ifdef CONFIG_OPENGL 734 static const DisplayChangeListenerOps dcl_gl_ops = { 735 .dpy_name = "sdl2-gl", 736 .dpy_gfx_update = sdl2_gl_update, 737 .dpy_gfx_switch = sdl2_gl_switch, 738 .dpy_gfx_check_format = console_gl_check_format, 739 .dpy_refresh = sdl2_gl_refresh, 740 .dpy_mouse_set = sdl_mouse_warp, 741 .dpy_cursor_define = sdl_mouse_define, 742 743 .dpy_gl_ctx_create = sdl2_gl_create_context, 744 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 745 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 746 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, 747 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 748 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 749 .dpy_gl_update = sdl2_gl_scanout_flush, 750 }; 751 #endif 752 753 void sdl_display_early_init(int opengl) 754 { 755 switch (opengl) { 756 case -1: /* default */ 757 case 0: /* off */ 758 break; 759 case 1: /* on */ 760 #ifdef CONFIG_OPENGL 761 display_opengl = 1; 762 #endif 763 break; 764 default: 765 g_assert_not_reached(); 766 break; 767 } 768 } 769 770 void sdl_display_init(DisplayState *ds, int full_screen) 771 { 772 int flags; 773 uint8_t data = 0; 774 char *filename; 775 int i; 776 SDL_SysWMinfo info; 777 778 #ifdef __linux__ 779 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 780 * accessible $DISPLAY to open X11 window. This is often the case 781 * when qemu is run using sudo. But in this case, and when actually 782 * run in X11 environment, SDL fights with X11 for the video card, 783 * making current display unavailable, often until reboot. 784 * So make x11 the default SDL video driver if this variable is unset. 785 * This is a bit hackish but saves us from bigger problem. 786 * Maybe it's a good idea to fix this in SDL instead. 787 */ 788 setenv("SDL_VIDEODRIVER", "x11", 0); 789 #endif 790 791 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; 792 if (SDL_Init(flags)) { 793 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 794 SDL_GetError()); 795 exit(1); 796 } 797 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 798 memset(&info, 0, sizeof(info)); 799 SDL_VERSION(&info.version); 800 801 for (i = 0;; i++) { 802 QemuConsole *con = qemu_console_lookup_by_index(i); 803 if (!con) { 804 break; 805 } 806 } 807 sdl2_num_outputs = i; 808 if (sdl2_num_outputs == 0) { 809 return; 810 } 811 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 812 for (i = 0; i < sdl2_num_outputs; i++) { 813 QemuConsole *con = qemu_console_lookup_by_index(i); 814 assert(con != NULL); 815 if (!qemu_console_is_graphic(con)) { 816 sdl2_console[i].hidden = true; 817 } 818 sdl2_console[i].idx = i; 819 #ifdef CONFIG_OPENGL 820 sdl2_console[i].opengl = display_opengl; 821 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 822 #else 823 sdl2_console[i].opengl = 0; 824 sdl2_console[i].dcl.ops = &dcl_2d_ops; 825 #endif 826 sdl2_console[i].dcl.con = con; 827 register_displaychangelistener(&sdl2_console[i].dcl); 828 829 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 830 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 831 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 832 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 833 #elif defined(SDL_VIDEO_DRIVER_X11) 834 qemu_console_set_window_id(con, info.info.x11.window); 835 #endif 836 } 837 #endif 838 } 839 840 /* Load a 32x32x4 image. White pixels are transparent. */ 841 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp"); 842 if (filename) { 843 SDL_Surface *image = SDL_LoadBMP(filename); 844 if (image) { 845 uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255); 846 SDL_SetColorKey(image, SDL_TRUE, colorkey); 847 SDL_SetWindowIcon(sdl2_console[0].real_window, image); 848 } 849 g_free(filename); 850 } 851 852 if (full_screen) { 853 gui_fullscreen = 1; 854 sdl_grab_start(0); 855 } 856 857 mouse_mode_notifier.notify = sdl_mouse_mode_change; 858 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 859 860 gui_grab = 0; 861 862 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 863 sdl_cursor_normal = SDL_GetCursor(); 864 865 atexit(sdl_cleanup); 866 } 867