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 int scr_w, scr_h; 280 int max_w = 0, max_h = 0; 281 int off_x = 0, off_y = 0; 282 int cur_off_x = 0, cur_off_y = 0; 283 int i; 284 285 for (i = 0; i < sdl2_num_outputs; i++) { 286 struct sdl2_console *thiscon = &sdl2_console[i]; 287 if (thiscon->real_window && thiscon->surface) { 288 SDL_GetWindowSize(thiscon->real_window, &scr_w, &scr_h); 289 cur_off_x = thiscon->x; 290 cur_off_y = thiscon->y; 291 if (scr_w + cur_off_x > max_w) { 292 max_w = scr_w + cur_off_x; 293 } 294 if (scr_h + cur_off_y > max_h) { 295 max_h = scr_h + cur_off_y; 296 } 297 if (i == scon->idx) { 298 off_x = cur_off_x; 299 off_y = cur_off_y; 300 } 301 } 302 } 303 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, off_x + x, 0, max_w); 304 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, off_y + y, 0, max_h); 305 } else { 306 if (guest_cursor) { 307 x -= guest_x; 308 y -= guest_y; 309 guest_x += x; 310 guest_y += y; 311 dx = x; 312 dy = y; 313 } 314 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 315 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 316 } 317 qemu_input_event_sync(); 318 } 319 320 static void toggle_full_screen(struct sdl2_console *scon) 321 { 322 gui_fullscreen = !gui_fullscreen; 323 if (gui_fullscreen) { 324 SDL_SetWindowFullscreen(scon->real_window, 325 SDL_WINDOW_FULLSCREEN_DESKTOP); 326 gui_saved_grab = gui_grab; 327 sdl_grab_start(scon); 328 } else { 329 if (!gui_saved_grab) { 330 sdl_grab_end(scon); 331 } 332 SDL_SetWindowFullscreen(scon->real_window, 0); 333 } 334 sdl2_redraw(scon); 335 } 336 337 static void handle_keydown(SDL_Event *ev) 338 { 339 int mod_state, win; 340 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 341 342 if (alt_grab) { 343 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) == 344 (gui_grab_code | KMOD_LSHIFT); 345 } else if (ctrl_grab) { 346 mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL; 347 } else { 348 mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code; 349 } 350 gui_key_modifier_pressed = mod_state; 351 352 if (gui_key_modifier_pressed) { 353 switch (ev->key.keysym.scancode) { 354 case SDL_SCANCODE_2: 355 case SDL_SCANCODE_3: 356 case SDL_SCANCODE_4: 357 case SDL_SCANCODE_5: 358 case SDL_SCANCODE_6: 359 case SDL_SCANCODE_7: 360 case SDL_SCANCODE_8: 361 case SDL_SCANCODE_9: 362 if (gui_grab) { 363 sdl_grab_end(scon); 364 } 365 366 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 367 if (win < sdl2_num_outputs) { 368 sdl2_console[win].hidden = !sdl2_console[win].hidden; 369 if (sdl2_console[win].real_window) { 370 if (sdl2_console[win].hidden) { 371 SDL_HideWindow(sdl2_console[win].real_window); 372 } else { 373 SDL_ShowWindow(sdl2_console[win].real_window); 374 } 375 } 376 gui_keysym = 1; 377 } 378 break; 379 case SDL_SCANCODE_F: 380 toggle_full_screen(scon); 381 gui_keysym = 1; 382 break; 383 case SDL_SCANCODE_U: 384 sdl2_window_destroy(scon); 385 sdl2_window_create(scon); 386 if (!scon->opengl) { 387 /* re-create scon->texture */ 388 sdl2_2d_switch(&scon->dcl, scon->surface); 389 } 390 gui_keysym = 1; 391 break; 392 #if 0 393 case SDL_SCANCODE_KP_PLUS: 394 case SDL_SCANCODE_KP_MINUS: 395 if (!gui_fullscreen) { 396 int scr_w, scr_h; 397 int width, height; 398 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 399 400 width = MAX(scr_w + (ev->key.keysym.scancode == 401 SDL_SCANCODE_KP_PLUS ? 50 : -50), 402 160); 403 height = (surface_height(scon->surface) * width) / 404 surface_width(scon->surface); 405 fprintf(stderr, "%s: scale to %dx%d\n", 406 __func__, width, height); 407 sdl_scale(scon, width, height); 408 sdl2_redraw(scon); 409 gui_keysym = 1; 410 } 411 #endif 412 default: 413 break; 414 } 415 } 416 if (!gui_keysym) { 417 sdl2_process_key(scon, &ev->key); 418 } 419 } 420 421 static void handle_keyup(SDL_Event *ev) 422 { 423 int mod_state; 424 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 425 426 if (!alt_grab) { 427 mod_state = (ev->key.keysym.mod & gui_grab_code); 428 } else { 429 mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT)); 430 } 431 if (!mod_state && gui_key_modifier_pressed) { 432 gui_key_modifier_pressed = 0; 433 if (gui_keysym == 0) { 434 /* exit/enter grab if pressing Ctrl-Alt */ 435 if (!gui_grab) { 436 sdl_grab_start(scon); 437 } else if (!gui_fullscreen) { 438 sdl_grab_end(scon); 439 } 440 /* SDL does not send back all the modifiers key, so we must 441 * correct it. */ 442 sdl2_reset_keys(scon); 443 return; 444 } 445 sdl2_reset_keys(scon); 446 gui_keysym = 0; 447 } 448 if (!gui_keysym) { 449 sdl2_process_key(scon, &ev->key); 450 } 451 } 452 453 static void handle_textinput(SDL_Event *ev) 454 { 455 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 456 QemuConsole *con = scon ? scon->dcl.con : NULL; 457 458 if (qemu_console_is_graphic(con)) { 459 return; 460 } 461 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 462 } 463 464 static void handle_mousemotion(SDL_Event *ev) 465 { 466 int max_x, max_y; 467 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 468 469 if (qemu_input_is_absolute() || absolute_enabled) { 470 int scr_w, scr_h; 471 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 472 max_x = scr_w - 1; 473 max_y = scr_h - 1; 474 if (gui_grab && !gui_fullscreen 475 && (ev->motion.x == 0 || ev->motion.y == 0 || 476 ev->motion.x == max_x || ev->motion.y == max_y)) { 477 sdl_grab_end(scon); 478 } 479 if (!gui_grab && 480 (ev->motion.x > 0 && ev->motion.x < max_x && 481 ev->motion.y > 0 && ev->motion.y < max_y)) { 482 sdl_grab_start(scon); 483 } 484 } 485 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 486 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 487 ev->motion.x, ev->motion.y, ev->motion.state); 488 } 489 } 490 491 static void handle_mousebutton(SDL_Event *ev) 492 { 493 int buttonstate = SDL_GetMouseState(NULL, NULL); 494 SDL_MouseButtonEvent *bev; 495 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 496 497 bev = &ev->button; 498 if (!gui_grab && !qemu_input_is_absolute()) { 499 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 500 /* start grabbing all events */ 501 sdl_grab_start(scon); 502 } 503 } else { 504 if (ev->type == SDL_MOUSEBUTTONDOWN) { 505 buttonstate |= SDL_BUTTON(bev->button); 506 } else { 507 buttonstate &= ~SDL_BUTTON(bev->button); 508 } 509 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 510 } 511 } 512 513 static void handle_mousewheel(SDL_Event *ev) 514 { 515 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 516 SDL_MouseWheelEvent *wev = &ev->wheel; 517 InputButton btn; 518 519 if (wev->y > 0) { 520 btn = INPUT_BUTTON_WHEEL_UP; 521 } else if (wev->y < 0) { 522 btn = INPUT_BUTTON_WHEEL_DOWN; 523 } else { 524 return; 525 } 526 527 qemu_input_queue_btn(scon->dcl.con, btn, true); 528 qemu_input_event_sync(); 529 qemu_input_queue_btn(scon->dcl.con, btn, false); 530 qemu_input_event_sync(); 531 } 532 533 static void handle_windowevent(SDL_Event *ev) 534 { 535 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 536 537 if (!scon) { 538 return; 539 } 540 541 switch (ev->window.event) { 542 case SDL_WINDOWEVENT_RESIZED: 543 { 544 QemuUIInfo info; 545 memset(&info, 0, sizeof(info)); 546 info.width = ev->window.data1; 547 info.height = ev->window.data2; 548 dpy_set_ui_info(scon->dcl.con, &info); 549 } 550 sdl2_redraw(scon); 551 break; 552 case SDL_WINDOWEVENT_EXPOSED: 553 sdl2_redraw(scon); 554 break; 555 case SDL_WINDOWEVENT_FOCUS_GAINED: 556 case SDL_WINDOWEVENT_ENTER: 557 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 558 absolute_mouse_grab(scon); 559 } 560 break; 561 case SDL_WINDOWEVENT_FOCUS_LOST: 562 if (gui_grab && !gui_fullscreen) { 563 sdl_grab_end(scon); 564 } 565 break; 566 case SDL_WINDOWEVENT_RESTORED: 567 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 568 break; 569 case SDL_WINDOWEVENT_MINIMIZED: 570 update_displaychangelistener(&scon->dcl, 500); 571 break; 572 case SDL_WINDOWEVENT_CLOSE: 573 if (qemu_console_is_graphic(scon->dcl.con)) { 574 if (!no_quit) { 575 no_shutdown = 0; 576 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 577 } 578 } else { 579 SDL_HideWindow(scon->real_window); 580 scon->hidden = true; 581 } 582 break; 583 case SDL_WINDOWEVENT_SHOWN: 584 scon->hidden = false; 585 break; 586 case SDL_WINDOWEVENT_HIDDEN: 587 scon->hidden = true; 588 break; 589 } 590 } 591 592 void sdl2_poll_events(struct sdl2_console *scon) 593 { 594 SDL_Event ev1, *ev = &ev1; 595 int idle = 1; 596 597 if (scon->last_vm_running != runstate_is_running()) { 598 scon->last_vm_running = runstate_is_running(); 599 sdl_update_caption(scon); 600 } 601 602 while (SDL_PollEvent(ev)) { 603 switch (ev->type) { 604 case SDL_KEYDOWN: 605 idle = 0; 606 handle_keydown(ev); 607 break; 608 case SDL_KEYUP: 609 idle = 0; 610 handle_keyup(ev); 611 break; 612 case SDL_TEXTINPUT: 613 idle = 0; 614 handle_textinput(ev); 615 break; 616 case SDL_QUIT: 617 if (!no_quit) { 618 no_shutdown = 0; 619 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 620 } 621 break; 622 case SDL_MOUSEMOTION: 623 idle = 0; 624 handle_mousemotion(ev); 625 break; 626 case SDL_MOUSEBUTTONDOWN: 627 case SDL_MOUSEBUTTONUP: 628 idle = 0; 629 handle_mousebutton(ev); 630 break; 631 case SDL_MOUSEWHEEL: 632 idle = 0; 633 handle_mousewheel(ev); 634 break; 635 case SDL_WINDOWEVENT: 636 handle_windowevent(ev); 637 break; 638 default: 639 break; 640 } 641 } 642 643 if (idle) { 644 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 645 scon->idle_counter++; 646 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 647 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 648 } 649 } 650 } else { 651 scon->idle_counter = 0; 652 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 653 } 654 } 655 656 static void sdl_mouse_warp(DisplayChangeListener *dcl, 657 int x, int y, int on) 658 { 659 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 660 if (on) { 661 if (!guest_cursor) { 662 sdl_show_cursor(); 663 } 664 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 665 SDL_SetCursor(guest_sprite); 666 if (!qemu_input_is_absolute() && !absolute_enabled) { 667 SDL_WarpMouseInWindow(scon->real_window, x, y); 668 } 669 } 670 } else if (gui_grab) { 671 sdl_hide_cursor(); 672 } 673 guest_cursor = on; 674 guest_x = x, guest_y = y; 675 } 676 677 static void sdl_mouse_define(DisplayChangeListener *dcl, 678 QEMUCursor *c) 679 { 680 681 if (guest_sprite) { 682 SDL_FreeCursor(guest_sprite); 683 } 684 685 if (guest_sprite_surface) { 686 SDL_FreeSurface(guest_sprite_surface); 687 } 688 689 guest_sprite_surface = 690 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 691 0xff0000, 0x00ff00, 0xff, 0xff000000); 692 693 if (!guest_sprite_surface) { 694 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 695 return; 696 } 697 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 698 c->hot_x, c->hot_y); 699 if (!guest_sprite) { 700 fprintf(stderr, "Failed to make color cursor from %p\n", c); 701 return; 702 } 703 if (guest_cursor && 704 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 705 SDL_SetCursor(guest_sprite); 706 } 707 } 708 709 static void sdl_cleanup(void) 710 { 711 if (guest_sprite) { 712 SDL_FreeCursor(guest_sprite); 713 } 714 SDL_QuitSubSystem(SDL_INIT_VIDEO); 715 } 716 717 static const DisplayChangeListenerOps dcl_2d_ops = { 718 .dpy_name = "sdl2-2d", 719 .dpy_gfx_update = sdl2_2d_update, 720 .dpy_gfx_switch = sdl2_2d_switch, 721 .dpy_gfx_check_format = sdl2_2d_check_format, 722 .dpy_refresh = sdl2_2d_refresh, 723 .dpy_mouse_set = sdl_mouse_warp, 724 .dpy_cursor_define = sdl_mouse_define, 725 }; 726 727 #ifdef CONFIG_OPENGL 728 static const DisplayChangeListenerOps dcl_gl_ops = { 729 .dpy_name = "sdl2-gl", 730 .dpy_gfx_update = sdl2_gl_update, 731 .dpy_gfx_switch = sdl2_gl_switch, 732 .dpy_gfx_check_format = console_gl_check_format, 733 .dpy_refresh = sdl2_gl_refresh, 734 .dpy_mouse_set = sdl_mouse_warp, 735 .dpy_cursor_define = sdl_mouse_define, 736 737 .dpy_gl_ctx_create = sdl2_gl_create_context, 738 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 739 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 740 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, 741 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 742 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 743 .dpy_gl_update = sdl2_gl_scanout_flush, 744 }; 745 #endif 746 747 void sdl_display_early_init(int opengl) 748 { 749 switch (opengl) { 750 case -1: /* default */ 751 case 0: /* off */ 752 break; 753 case 1: /* on */ 754 #ifdef CONFIG_OPENGL 755 display_opengl = 1; 756 #endif 757 break; 758 default: 759 g_assert_not_reached(); 760 break; 761 } 762 } 763 764 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame) 765 { 766 int flags; 767 uint8_t data = 0; 768 char *filename; 769 int i; 770 SDL_SysWMinfo info; 771 772 if (no_frame) { 773 gui_noframe = 1; 774 } 775 776 #ifdef __linux__ 777 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 778 * accessible $DISPLAY to open X11 window. This is often the case 779 * when qemu is run using sudo. But in this case, and when actually 780 * run in X11 environment, SDL fights with X11 for the video card, 781 * making current display unavailable, often until reboot. 782 * So make x11 the default SDL video driver if this variable is unset. 783 * This is a bit hackish but saves us from bigger problem. 784 * Maybe it's a good idea to fix this in SDL instead. 785 */ 786 setenv("SDL_VIDEODRIVER", "x11", 0); 787 #endif 788 789 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; 790 if (SDL_Init(flags)) { 791 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 792 SDL_GetError()); 793 exit(1); 794 } 795 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 796 memset(&info, 0, sizeof(info)); 797 SDL_VERSION(&info.version); 798 799 for (i = 0;; i++) { 800 QemuConsole *con = qemu_console_lookup_by_index(i); 801 if (!con) { 802 break; 803 } 804 } 805 sdl2_num_outputs = i; 806 if (sdl2_num_outputs == 0) { 807 return; 808 } 809 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 810 for (i = 0; i < sdl2_num_outputs; i++) { 811 QemuConsole *con = qemu_console_lookup_by_index(i); 812 assert(con != NULL); 813 if (!qemu_console_is_graphic(con)) { 814 sdl2_console[i].hidden = true; 815 } 816 sdl2_console[i].idx = i; 817 #ifdef CONFIG_OPENGL 818 sdl2_console[i].opengl = display_opengl; 819 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 820 #else 821 sdl2_console[i].opengl = 0; 822 sdl2_console[i].dcl.ops = &dcl_2d_ops; 823 #endif 824 sdl2_console[i].dcl.con = con; 825 register_displaychangelistener(&sdl2_console[i].dcl); 826 827 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 828 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 829 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 830 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 831 #elif defined(SDL_VIDEO_DRIVER_X11) 832 qemu_console_set_window_id(con, info.info.x11.window); 833 #endif 834 } 835 #endif 836 } 837 838 /* Load a 32x32x4 image. White pixels are transparent. */ 839 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp"); 840 if (filename) { 841 SDL_Surface *image = SDL_LoadBMP(filename); 842 if (image) { 843 uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255); 844 SDL_SetColorKey(image, SDL_TRUE, colorkey); 845 SDL_SetWindowIcon(sdl2_console[0].real_window, image); 846 } 847 g_free(filename); 848 } 849 850 if (full_screen) { 851 gui_fullscreen = 1; 852 sdl_grab_start(0); 853 } 854 855 mouse_mode_notifier.notify = sdl_mouse_mode_change; 856 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 857 858 gui_grab = 0; 859 860 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 861 sdl_cursor_normal = SDL_GetCursor(); 862 863 atexit(sdl_cleanup); 864 } 865