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 if (qemu_input_is_absolute()) { 173 SDL_ShowCursor(1); 174 SDL_SetCursor(sdl_cursor_hidden); 175 } else { 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 SDL_ShowCursor(1); 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 } 197 198 static void sdl_grab_start(struct sdl2_console *scon) 199 { 200 QemuConsole *con = scon ? scon->dcl.con : NULL; 201 202 if (!con || !qemu_console_is_graphic(con)) { 203 return; 204 } 205 /* 206 * If the application is not active, do not try to enter grab state. This 207 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the 208 * application (SDL bug). 209 */ 210 if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) { 211 return; 212 } 213 if (guest_cursor) { 214 SDL_SetCursor(guest_sprite); 215 if (!qemu_input_is_absolute() && !absolute_enabled) { 216 SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y); 217 } 218 } else { 219 sdl_hide_cursor(); 220 } 221 SDL_SetWindowGrab(scon->real_window, SDL_TRUE); 222 gui_grab = 1; 223 sdl_update_caption(scon); 224 } 225 226 static void sdl_grab_end(struct sdl2_console *scon) 227 { 228 SDL_SetWindowGrab(scon->real_window, SDL_FALSE); 229 gui_grab = 0; 230 sdl_show_cursor(); 231 sdl_update_caption(scon); 232 } 233 234 static void absolute_mouse_grab(struct sdl2_console *scon) 235 { 236 int mouse_x, mouse_y; 237 int scr_w, scr_h; 238 SDL_GetMouseState(&mouse_x, &mouse_y); 239 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 240 if (mouse_x > 0 && mouse_x < scr_w - 1 && 241 mouse_y > 0 && mouse_y < scr_h - 1) { 242 sdl_grab_start(scon); 243 } 244 } 245 246 static void sdl_mouse_mode_change(Notifier *notify, void *data) 247 { 248 if (qemu_input_is_absolute()) { 249 if (!absolute_enabled) { 250 absolute_enabled = 1; 251 absolute_mouse_grab(&sdl2_console[0]); 252 } 253 } else if (absolute_enabled) { 254 if (!gui_fullscreen) { 255 sdl_grab_end(&sdl2_console[0]); 256 } 257 absolute_enabled = 0; 258 } 259 } 260 261 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy, 262 int x, int y, int state) 263 { 264 static uint32_t bmap[INPUT_BUTTON__MAX] = { 265 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT), 266 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE), 267 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT), 268 }; 269 static uint32_t prev_state; 270 271 if (prev_state != state) { 272 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); 273 prev_state = state; 274 } 275 276 if (qemu_input_is_absolute()) { 277 int scr_w, scr_h; 278 int max_w = 0, max_h = 0; 279 int off_x = 0, off_y = 0; 280 int cur_off_x = 0, cur_off_y = 0; 281 int i; 282 283 for (i = 0; i < sdl2_num_outputs; i++) { 284 struct sdl2_console *thiscon = &sdl2_console[i]; 285 if (thiscon->real_window && thiscon->surface) { 286 SDL_GetWindowSize(thiscon->real_window, &scr_w, &scr_h); 287 cur_off_x = thiscon->x; 288 cur_off_y = thiscon->y; 289 if (scr_w + cur_off_x > max_w) { 290 max_w = scr_w + cur_off_x; 291 } 292 if (scr_h + cur_off_y > max_h) { 293 max_h = scr_h + cur_off_y; 294 } 295 if (i == scon->idx) { 296 off_x = cur_off_x; 297 off_y = cur_off_y; 298 } 299 } 300 } 301 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, off_x + x, max_w); 302 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, off_y + y, max_h); 303 } else { 304 if (guest_cursor) { 305 x -= guest_x; 306 y -= guest_y; 307 guest_x += x; 308 guest_y += y; 309 dx = x; 310 dy = y; 311 } 312 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 313 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 314 } 315 qemu_input_event_sync(); 316 } 317 318 static void toggle_full_screen(struct sdl2_console *scon) 319 { 320 gui_fullscreen = !gui_fullscreen; 321 if (gui_fullscreen) { 322 SDL_SetWindowFullscreen(scon->real_window, 323 SDL_WINDOW_FULLSCREEN_DESKTOP); 324 gui_saved_grab = gui_grab; 325 sdl_grab_start(scon); 326 } else { 327 if (!gui_saved_grab) { 328 sdl_grab_end(scon); 329 } 330 SDL_SetWindowFullscreen(scon->real_window, 0); 331 } 332 sdl2_redraw(scon); 333 } 334 335 static void handle_keydown(SDL_Event *ev) 336 { 337 int mod_state, win; 338 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 339 340 if (alt_grab) { 341 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) == 342 (gui_grab_code | KMOD_LSHIFT); 343 } else if (ctrl_grab) { 344 mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL; 345 } else { 346 mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code; 347 } 348 gui_key_modifier_pressed = mod_state; 349 350 if (gui_key_modifier_pressed) { 351 switch (ev->key.keysym.scancode) { 352 case SDL_SCANCODE_2: 353 case SDL_SCANCODE_3: 354 case SDL_SCANCODE_4: 355 case SDL_SCANCODE_5: 356 case SDL_SCANCODE_6: 357 case SDL_SCANCODE_7: 358 case SDL_SCANCODE_8: 359 case SDL_SCANCODE_9: 360 if (gui_grab) { 361 sdl_grab_end(scon); 362 } 363 364 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 365 if (win < sdl2_num_outputs) { 366 sdl2_console[win].hidden = !sdl2_console[win].hidden; 367 if (sdl2_console[win].real_window) { 368 if (sdl2_console[win].hidden) { 369 SDL_HideWindow(sdl2_console[win].real_window); 370 } else { 371 SDL_ShowWindow(sdl2_console[win].real_window); 372 } 373 } 374 gui_keysym = 1; 375 } 376 break; 377 case SDL_SCANCODE_F: 378 toggle_full_screen(scon); 379 gui_keysym = 1; 380 break; 381 case SDL_SCANCODE_U: 382 sdl2_window_destroy(scon); 383 sdl2_window_create(scon); 384 if (!scon->opengl) { 385 /* re-create scon->texture */ 386 sdl2_2d_switch(&scon->dcl, scon->surface); 387 } 388 gui_keysym = 1; 389 break; 390 #if 0 391 case SDL_SCANCODE_KP_PLUS: 392 case SDL_SCANCODE_KP_MINUS: 393 if (!gui_fullscreen) { 394 int scr_w, scr_h; 395 int width, height; 396 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 397 398 width = MAX(scr_w + (ev->key.keysym.scancode == 399 SDL_SCANCODE_KP_PLUS ? 50 : -50), 400 160); 401 height = (surface_height(scon->surface) * width) / 402 surface_width(scon->surface); 403 fprintf(stderr, "%s: scale to %dx%d\n", 404 __func__, width, height); 405 sdl_scale(scon, width, height); 406 sdl2_redraw(scon); 407 gui_keysym = 1; 408 } 409 #endif 410 default: 411 break; 412 } 413 } 414 if (!gui_keysym) { 415 sdl2_process_key(scon, &ev->key); 416 } 417 } 418 419 static void handle_keyup(SDL_Event *ev) 420 { 421 int mod_state; 422 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 423 424 if (!alt_grab) { 425 mod_state = (ev->key.keysym.mod & gui_grab_code); 426 } else { 427 mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT)); 428 } 429 if (!mod_state && gui_key_modifier_pressed) { 430 gui_key_modifier_pressed = 0; 431 if (gui_keysym == 0) { 432 /* exit/enter grab if pressing Ctrl-Alt */ 433 if (!gui_grab) { 434 sdl_grab_start(scon); 435 } else if (!gui_fullscreen) { 436 sdl_grab_end(scon); 437 } 438 /* SDL does not send back all the modifiers key, so we must 439 * correct it. */ 440 sdl2_reset_keys(scon); 441 return; 442 } 443 gui_keysym = 0; 444 } 445 if (!gui_keysym) { 446 sdl2_process_key(scon, &ev->key); 447 } 448 } 449 450 static void handle_textinput(SDL_Event *ev) 451 { 452 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 453 QemuConsole *con = scon ? scon->dcl.con : NULL; 454 455 if (qemu_console_is_graphic(con)) { 456 return; 457 } 458 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 459 } 460 461 static void handle_mousemotion(SDL_Event *ev) 462 { 463 int max_x, max_y; 464 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 465 466 if (qemu_input_is_absolute() || absolute_enabled) { 467 int scr_w, scr_h; 468 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 469 max_x = scr_w - 1; 470 max_y = scr_h - 1; 471 if (gui_grab && (ev->motion.x == 0 || ev->motion.y == 0 || 472 ev->motion.x == max_x || ev->motion.y == max_y)) { 473 sdl_grab_end(scon); 474 } 475 if (!gui_grab && 476 (ev->motion.x > 0 && ev->motion.x < max_x && 477 ev->motion.y > 0 && ev->motion.y < max_y)) { 478 sdl_grab_start(scon); 479 } 480 } 481 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 482 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 483 ev->motion.x, ev->motion.y, ev->motion.state); 484 } 485 } 486 487 static void handle_mousebutton(SDL_Event *ev) 488 { 489 int buttonstate = SDL_GetMouseState(NULL, NULL); 490 SDL_MouseButtonEvent *bev; 491 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 492 493 bev = &ev->button; 494 if (!gui_grab && !qemu_input_is_absolute()) { 495 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 496 /* start grabbing all events */ 497 sdl_grab_start(scon); 498 } 499 } else { 500 if (ev->type == SDL_MOUSEBUTTONDOWN) { 501 buttonstate |= SDL_BUTTON(bev->button); 502 } else { 503 buttonstate &= ~SDL_BUTTON(bev->button); 504 } 505 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 506 } 507 } 508 509 static void handle_mousewheel(SDL_Event *ev) 510 { 511 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 512 SDL_MouseWheelEvent *wev = &ev->wheel; 513 InputButton btn; 514 515 if (wev->y > 0) { 516 btn = INPUT_BUTTON_WHEEL_UP; 517 } else if (wev->y < 0) { 518 btn = INPUT_BUTTON_WHEEL_DOWN; 519 } else { 520 return; 521 } 522 523 qemu_input_queue_btn(scon->dcl.con, btn, true); 524 qemu_input_event_sync(); 525 qemu_input_queue_btn(scon->dcl.con, btn, false); 526 qemu_input_event_sync(); 527 } 528 529 static void handle_windowevent(SDL_Event *ev) 530 { 531 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 532 533 if (!scon) { 534 return; 535 } 536 537 switch (ev->window.event) { 538 case SDL_WINDOWEVENT_RESIZED: 539 { 540 QemuUIInfo info; 541 memset(&info, 0, sizeof(info)); 542 info.width = ev->window.data1; 543 info.height = ev->window.data2; 544 dpy_set_ui_info(scon->dcl.con, &info); 545 } 546 sdl2_redraw(scon); 547 break; 548 case SDL_WINDOWEVENT_EXPOSED: 549 sdl2_redraw(scon); 550 break; 551 case SDL_WINDOWEVENT_FOCUS_GAINED: 552 case SDL_WINDOWEVENT_ENTER: 553 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 554 absolute_mouse_grab(scon); 555 } 556 break; 557 case SDL_WINDOWEVENT_FOCUS_LOST: 558 if (gui_grab && !gui_fullscreen) { 559 sdl_grab_end(scon); 560 } 561 break; 562 case SDL_WINDOWEVENT_RESTORED: 563 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 564 break; 565 case SDL_WINDOWEVENT_MINIMIZED: 566 update_displaychangelistener(&scon->dcl, 500); 567 break; 568 case SDL_WINDOWEVENT_CLOSE: 569 if (!no_quit) { 570 no_shutdown = 0; 571 qemu_system_shutdown_request(); 572 } 573 break; 574 case SDL_WINDOWEVENT_SHOWN: 575 if (scon->hidden) { 576 SDL_HideWindow(scon->real_window); 577 } 578 break; 579 case SDL_WINDOWEVENT_HIDDEN: 580 if (!scon->hidden) { 581 SDL_ShowWindow(scon->real_window); 582 } 583 break; 584 } 585 } 586 587 void sdl2_poll_events(struct sdl2_console *scon) 588 { 589 SDL_Event ev1, *ev = &ev1; 590 int idle = 1; 591 592 if (scon->last_vm_running != runstate_is_running()) { 593 scon->last_vm_running = runstate_is_running(); 594 sdl_update_caption(scon); 595 } 596 597 while (SDL_PollEvent(ev)) { 598 switch (ev->type) { 599 case SDL_KEYDOWN: 600 idle = 0; 601 handle_keydown(ev); 602 break; 603 case SDL_KEYUP: 604 idle = 0; 605 handle_keyup(ev); 606 break; 607 case SDL_TEXTINPUT: 608 idle = 0; 609 handle_textinput(ev); 610 break; 611 case SDL_QUIT: 612 if (!no_quit) { 613 no_shutdown = 0; 614 qemu_system_shutdown_request(); 615 } 616 break; 617 case SDL_MOUSEMOTION: 618 idle = 0; 619 handle_mousemotion(ev); 620 break; 621 case SDL_MOUSEBUTTONDOWN: 622 case SDL_MOUSEBUTTONUP: 623 idle = 0; 624 handle_mousebutton(ev); 625 break; 626 case SDL_MOUSEWHEEL: 627 idle = 0; 628 handle_mousewheel(ev); 629 break; 630 case SDL_WINDOWEVENT: 631 handle_windowevent(ev); 632 break; 633 default: 634 break; 635 } 636 } 637 638 if (idle) { 639 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 640 scon->idle_counter++; 641 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 642 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 643 } 644 } 645 } else { 646 scon->idle_counter = 0; 647 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 648 } 649 } 650 651 static void sdl_mouse_warp(DisplayChangeListener *dcl, 652 int x, int y, int on) 653 { 654 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 655 if (on) { 656 if (!guest_cursor) { 657 sdl_show_cursor(); 658 } 659 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 660 SDL_SetCursor(guest_sprite); 661 if (!qemu_input_is_absolute() && !absolute_enabled) { 662 SDL_WarpMouseInWindow(scon->real_window, x, y); 663 } 664 } 665 } else if (gui_grab) { 666 sdl_hide_cursor(); 667 } 668 guest_cursor = on; 669 guest_x = x, guest_y = y; 670 } 671 672 static void sdl_mouse_define(DisplayChangeListener *dcl, 673 QEMUCursor *c) 674 { 675 676 if (guest_sprite) { 677 SDL_FreeCursor(guest_sprite); 678 } 679 680 if (guest_sprite_surface) { 681 SDL_FreeSurface(guest_sprite_surface); 682 } 683 684 guest_sprite_surface = 685 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 686 0xff0000, 0x00ff00, 0xff, 0xff000000); 687 688 if (!guest_sprite_surface) { 689 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 690 return; 691 } 692 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 693 c->hot_x, c->hot_y); 694 if (!guest_sprite) { 695 fprintf(stderr, "Failed to make color cursor from %p\n", c); 696 return; 697 } 698 if (guest_cursor && 699 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 700 SDL_SetCursor(guest_sprite); 701 } 702 } 703 704 static void sdl_cleanup(void) 705 { 706 if (guest_sprite) { 707 SDL_FreeCursor(guest_sprite); 708 } 709 SDL_QuitSubSystem(SDL_INIT_VIDEO); 710 } 711 712 static const DisplayChangeListenerOps dcl_2d_ops = { 713 .dpy_name = "sdl2-2d", 714 .dpy_gfx_update = sdl2_2d_update, 715 .dpy_gfx_switch = sdl2_2d_switch, 716 .dpy_gfx_check_format = sdl2_2d_check_format, 717 .dpy_refresh = sdl2_2d_refresh, 718 .dpy_mouse_set = sdl_mouse_warp, 719 .dpy_cursor_define = sdl_mouse_define, 720 }; 721 722 #ifdef CONFIG_OPENGL 723 static const DisplayChangeListenerOps dcl_gl_ops = { 724 .dpy_name = "sdl2-gl", 725 .dpy_gfx_update = sdl2_gl_update, 726 .dpy_gfx_switch = sdl2_gl_switch, 727 .dpy_gfx_check_format = console_gl_check_format, 728 .dpy_refresh = sdl2_gl_refresh, 729 .dpy_mouse_set = sdl_mouse_warp, 730 .dpy_cursor_define = sdl_mouse_define, 731 732 .dpy_gl_ctx_create = sdl2_gl_create_context, 733 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 734 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 735 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, 736 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 737 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 738 .dpy_gl_update = sdl2_gl_scanout_flush, 739 }; 740 #endif 741 742 void sdl_display_early_init(int opengl) 743 { 744 switch (opengl) { 745 case -1: /* default */ 746 case 0: /* off */ 747 break; 748 case 1: /* on */ 749 #ifdef CONFIG_OPENGL 750 display_opengl = 1; 751 #endif 752 break; 753 default: 754 g_assert_not_reached(); 755 break; 756 } 757 } 758 759 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame) 760 { 761 int flags; 762 uint8_t data = 0; 763 char *filename; 764 int i; 765 SDL_SysWMinfo info; 766 767 if (no_frame) { 768 gui_noframe = 1; 769 } 770 771 #ifdef __linux__ 772 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 773 * accessible $DISPLAY to open X11 window. This is often the case 774 * when qemu is run using sudo. But in this case, and when actually 775 * run in X11 environment, SDL fights with X11 for the video card, 776 * making current display unavailable, often until reboot. 777 * So make x11 the default SDL video driver if this variable is unset. 778 * This is a bit hackish but saves us from bigger problem. 779 * Maybe it's a good idea to fix this in SDL instead. 780 */ 781 setenv("SDL_VIDEODRIVER", "x11", 0); 782 #endif 783 784 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; 785 if (SDL_Init(flags)) { 786 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 787 SDL_GetError()); 788 exit(1); 789 } 790 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 791 memset(&info, 0, sizeof(info)); 792 SDL_VERSION(&info.version); 793 794 for (i = 0;; i++) { 795 QemuConsole *con = qemu_console_lookup_by_index(i); 796 if (!con) { 797 break; 798 } 799 } 800 sdl2_num_outputs = i; 801 if (sdl2_num_outputs == 0) { 802 return; 803 } 804 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 805 for (i = 0; i < sdl2_num_outputs; i++) { 806 QemuConsole *con = qemu_console_lookup_by_index(i); 807 if (!qemu_console_is_graphic(con)) { 808 sdl2_console[i].hidden = true; 809 } 810 sdl2_console[i].idx = i; 811 #ifdef CONFIG_OPENGL 812 sdl2_console[i].opengl = display_opengl; 813 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 814 #else 815 sdl2_console[i].opengl = 0; 816 sdl2_console[i].dcl.ops = &dcl_2d_ops; 817 #endif 818 sdl2_console[i].dcl.con = con; 819 register_displaychangelistener(&sdl2_console[i].dcl); 820 821 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 822 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 823 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 824 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 825 #elif defined(SDL_VIDEO_DRIVER_X11) 826 qemu_console_set_window_id(con, info.info.x11.window); 827 #endif 828 } 829 #endif 830 } 831 832 /* Load a 32x32x4 image. White pixels are transparent. */ 833 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp"); 834 if (filename) { 835 SDL_Surface *image = SDL_LoadBMP(filename); 836 if (image) { 837 uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255); 838 SDL_SetColorKey(image, SDL_TRUE, colorkey); 839 SDL_SetWindowIcon(sdl2_console[0].real_window, image); 840 } 841 g_free(filename); 842 } 843 844 if (full_screen) { 845 gui_fullscreen = 1; 846 sdl_grab_start(0); 847 } 848 849 mouse_mode_notifier.notify = sdl_mouse_mode_change; 850 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 851 852 gui_grab = 0; 853 854 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 855 sdl_cursor_normal = SDL_GetCursor(); 856 857 atexit(sdl_cleanup); 858 } 859