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/module.h" 28 #include "ui/console.h" 29 #include "ui/input.h" 30 #include "ui/sdl2.h" 31 #include "sysemu/runstate.h" 32 #include "sysemu/sysemu.h" 33 #include "ui/win32-kbd-hook.h" 34 35 static int sdl2_num_outputs; 36 static struct sdl2_console *sdl2_console; 37 38 static SDL_Surface *guest_sprite_surface; 39 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ 40 41 static int gui_saved_grab; 42 static int gui_fullscreen; 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(struct sdl2_console *scon) 166 { 167 if (scon->opts->has_show_cursor && scon->opts->show_cursor) { 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(struct sdl2_console *scon) 180 { 181 if (scon->opts->has_show_cursor && scon->opts->show_cursor) { 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(scon); 221 } 222 SDL_SetWindowGrab(scon->real_window, SDL_TRUE); 223 gui_grab = 1; 224 win32_kbd_set_grab(true); 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 win32_kbd_set_grab(false); 233 sdl_show_cursor(scon); 234 sdl_update_caption(scon); 235 } 236 237 static void absolute_mouse_grab(struct sdl2_console *scon) 238 { 239 int mouse_x, mouse_y; 240 int scr_w, scr_h; 241 SDL_GetMouseState(&mouse_x, &mouse_y); 242 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 243 if (mouse_x > 0 && mouse_x < scr_w - 1 && 244 mouse_y > 0 && mouse_y < scr_h - 1) { 245 sdl_grab_start(scon); 246 } 247 } 248 249 static void sdl_mouse_mode_change(Notifier *notify, void *data) 250 { 251 if (qemu_input_is_absolute()) { 252 if (!absolute_enabled) { 253 absolute_enabled = 1; 254 SDL_SetRelativeMouseMode(SDL_FALSE); 255 absolute_mouse_grab(&sdl2_console[0]); 256 } 257 } else if (absolute_enabled) { 258 if (!gui_fullscreen) { 259 sdl_grab_end(&sdl2_console[0]); 260 } 261 absolute_enabled = 0; 262 } 263 } 264 265 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy, 266 int x, int y, int state) 267 { 268 static uint32_t bmap[INPUT_BUTTON__MAX] = { 269 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT), 270 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE), 271 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT), 272 }; 273 static uint32_t prev_state; 274 275 if (prev_state != state) { 276 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); 277 prev_state = state; 278 } 279 280 if (qemu_input_is_absolute()) { 281 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, 282 x, 0, surface_width(scon->surface)); 283 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, 284 y, 0, surface_height(scon->surface)); 285 } else { 286 if (guest_cursor) { 287 x -= guest_x; 288 y -= guest_y; 289 guest_x += x; 290 guest_y += y; 291 dx = x; 292 dy = y; 293 } 294 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 295 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 296 } 297 qemu_input_event_sync(); 298 } 299 300 static void toggle_full_screen(struct sdl2_console *scon) 301 { 302 gui_fullscreen = !gui_fullscreen; 303 if (gui_fullscreen) { 304 SDL_SetWindowFullscreen(scon->real_window, 305 SDL_WINDOW_FULLSCREEN_DESKTOP); 306 gui_saved_grab = gui_grab; 307 sdl_grab_start(scon); 308 } else { 309 if (!gui_saved_grab) { 310 sdl_grab_end(scon); 311 } 312 SDL_SetWindowFullscreen(scon->real_window, 0); 313 } 314 sdl2_redraw(scon); 315 } 316 317 static int get_mod_state(void) 318 { 319 SDL_Keymod mod = SDL_GetModState(); 320 321 if (alt_grab) { 322 return (mod & (gui_grab_code | KMOD_LSHIFT)) == 323 (gui_grab_code | KMOD_LSHIFT); 324 } else if (ctrl_grab) { 325 return (mod & KMOD_RCTRL) == KMOD_RCTRL; 326 } else { 327 return (mod & gui_grab_code) == gui_grab_code; 328 } 329 } 330 331 static void *sdl2_win32_get_hwnd(struct sdl2_console *scon) 332 { 333 #ifdef CONFIG_WIN32 334 SDL_SysWMinfo info; 335 336 SDL_VERSION(&info.version); 337 if (SDL_GetWindowWMInfo(scon->real_window, &info)) { 338 return info.info.win.window; 339 } 340 #endif 341 return NULL; 342 } 343 344 static void handle_keydown(SDL_Event *ev) 345 { 346 int win; 347 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 348 int gui_key_modifier_pressed = get_mod_state(); 349 int gui_keysym = 0; 350 351 if (!scon) { 352 return; 353 } 354 355 if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) { 356 switch (ev->key.keysym.scancode) { 357 case SDL_SCANCODE_2: 358 case SDL_SCANCODE_3: 359 case SDL_SCANCODE_4: 360 case SDL_SCANCODE_5: 361 case SDL_SCANCODE_6: 362 case SDL_SCANCODE_7: 363 case SDL_SCANCODE_8: 364 case SDL_SCANCODE_9: 365 if (gui_grab) { 366 sdl_grab_end(scon); 367 } 368 369 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 370 if (win < sdl2_num_outputs) { 371 sdl2_console[win].hidden = !sdl2_console[win].hidden; 372 if (sdl2_console[win].real_window) { 373 if (sdl2_console[win].hidden) { 374 SDL_HideWindow(sdl2_console[win].real_window); 375 } else { 376 SDL_ShowWindow(sdl2_console[win].real_window); 377 } 378 } 379 gui_keysym = 1; 380 } 381 break; 382 case SDL_SCANCODE_F: 383 toggle_full_screen(scon); 384 gui_keysym = 1; 385 break; 386 case SDL_SCANCODE_G: 387 gui_keysym = 1; 388 if (!gui_grab) { 389 sdl_grab_start(scon); 390 } else if (!gui_fullscreen) { 391 sdl_grab_end(scon); 392 } 393 break; 394 case SDL_SCANCODE_U: 395 sdl2_window_resize(scon); 396 if (!scon->opengl) { 397 /* re-create scon->texture */ 398 sdl2_2d_switch(&scon->dcl, scon->surface); 399 } 400 gui_keysym = 1; 401 break; 402 #if 0 403 case SDL_SCANCODE_KP_PLUS: 404 case SDL_SCANCODE_KP_MINUS: 405 if (!gui_fullscreen) { 406 int scr_w, scr_h; 407 int width, height; 408 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 409 410 width = MAX(scr_w + (ev->key.keysym.scancode == 411 SDL_SCANCODE_KP_PLUS ? 50 : -50), 412 160); 413 height = (surface_height(scon->surface) * width) / 414 surface_width(scon->surface); 415 fprintf(stderr, "%s: scale to %dx%d\n", 416 __func__, width, height); 417 sdl_scale(scon, width, height); 418 sdl2_redraw(scon); 419 gui_keysym = 1; 420 } 421 #endif 422 default: 423 break; 424 } 425 } 426 if (!gui_keysym) { 427 sdl2_process_key(scon, &ev->key); 428 } 429 } 430 431 static void handle_keyup(SDL_Event *ev) 432 { 433 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 434 435 if (!scon) { 436 return; 437 } 438 439 scon->ignore_hotkeys = false; 440 sdl2_process_key(scon, &ev->key); 441 } 442 443 static void handle_textinput(SDL_Event *ev) 444 { 445 struct sdl2_console *scon = get_scon_from_window(ev->text.windowID); 446 QemuConsole *con = scon ? scon->dcl.con : NULL; 447 448 if (!con) { 449 return; 450 } 451 452 if (qemu_console_is_graphic(con)) { 453 return; 454 } 455 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 456 } 457 458 static void handle_mousemotion(SDL_Event *ev) 459 { 460 int max_x, max_y; 461 struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID); 462 463 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 464 return; 465 } 466 467 if (qemu_input_is_absolute() || absolute_enabled) { 468 int scr_w, scr_h; 469 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 470 max_x = scr_w - 1; 471 max_y = scr_h - 1; 472 if (gui_grab && !gui_fullscreen 473 && (ev->motion.x == 0 || ev->motion.y == 0 || 474 ev->motion.x == max_x || ev->motion.y == max_y)) { 475 sdl_grab_end(scon); 476 } 477 if (!gui_grab && 478 (ev->motion.x > 0 && ev->motion.x < max_x && 479 ev->motion.y > 0 && ev->motion.y < max_y)) { 480 sdl_grab_start(scon); 481 } 482 } 483 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 484 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 485 ev->motion.x, ev->motion.y, ev->motion.state); 486 } 487 } 488 489 static void handle_mousebutton(SDL_Event *ev) 490 { 491 int buttonstate = SDL_GetMouseState(NULL, NULL); 492 SDL_MouseButtonEvent *bev; 493 struct sdl2_console *scon = get_scon_from_window(ev->button.windowID); 494 495 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 496 return; 497 } 498 499 bev = &ev->button; 500 if (!gui_grab && !qemu_input_is_absolute()) { 501 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 502 /* start grabbing all events */ 503 sdl_grab_start(scon); 504 } 505 } else { 506 if (ev->type == SDL_MOUSEBUTTONDOWN) { 507 buttonstate |= SDL_BUTTON(bev->button); 508 } else { 509 buttonstate &= ~SDL_BUTTON(bev->button); 510 } 511 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 512 } 513 } 514 515 static void handle_mousewheel(SDL_Event *ev) 516 { 517 struct sdl2_console *scon = get_scon_from_window(ev->wheel.windowID); 518 SDL_MouseWheelEvent *wev = &ev->wheel; 519 InputButton btn; 520 521 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 522 return; 523 } 524 525 if (wev->y > 0) { 526 btn = INPUT_BUTTON_WHEEL_UP; 527 } else if (wev->y < 0) { 528 btn = INPUT_BUTTON_WHEEL_DOWN; 529 } else { 530 return; 531 } 532 533 qemu_input_queue_btn(scon->dcl.con, btn, true); 534 qemu_input_event_sync(); 535 qemu_input_queue_btn(scon->dcl.con, btn, false); 536 qemu_input_event_sync(); 537 } 538 539 static void handle_windowevent(SDL_Event *ev) 540 { 541 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 542 bool allow_close = true; 543 544 if (!scon) { 545 return; 546 } 547 548 switch (ev->window.event) { 549 case SDL_WINDOWEVENT_RESIZED: 550 { 551 QemuUIInfo info; 552 memset(&info, 0, sizeof(info)); 553 info.width = ev->window.data1; 554 info.height = ev->window.data2; 555 dpy_set_ui_info(scon->dcl.con, &info); 556 } 557 sdl2_redraw(scon); 558 break; 559 case SDL_WINDOWEVENT_EXPOSED: 560 sdl2_redraw(scon); 561 break; 562 case SDL_WINDOWEVENT_FOCUS_GAINED: 563 win32_kbd_set_grab(gui_grab); 564 if (qemu_console_is_graphic(scon->dcl.con)) { 565 win32_kbd_set_window(sdl2_win32_get_hwnd(scon)); 566 } 567 /* fall through */ 568 case SDL_WINDOWEVENT_ENTER: 569 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 570 absolute_mouse_grab(scon); 571 } 572 /* If a new console window opened using a hotkey receives the 573 * focus, SDL sends another KEYDOWN event to the new window, 574 * closing the console window immediately after. 575 * 576 * Work around this by ignoring further hotkey events until a 577 * key is released. 578 */ 579 scon->ignore_hotkeys = get_mod_state(); 580 break; 581 case SDL_WINDOWEVENT_FOCUS_LOST: 582 if (qemu_console_is_graphic(scon->dcl.con)) { 583 win32_kbd_set_window(NULL); 584 } 585 if (gui_grab && !gui_fullscreen) { 586 sdl_grab_end(scon); 587 } 588 break; 589 case SDL_WINDOWEVENT_RESTORED: 590 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 591 break; 592 case SDL_WINDOWEVENT_MINIMIZED: 593 update_displaychangelistener(&scon->dcl, 500); 594 break; 595 case SDL_WINDOWEVENT_CLOSE: 596 if (qemu_console_is_graphic(scon->dcl.con)) { 597 if (scon->opts->has_window_close && !scon->opts->window_close) { 598 allow_close = false; 599 } 600 if (allow_close) { 601 no_shutdown = 0; 602 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 603 } 604 } else { 605 SDL_HideWindow(scon->real_window); 606 scon->hidden = true; 607 } 608 break; 609 case SDL_WINDOWEVENT_SHOWN: 610 scon->hidden = false; 611 break; 612 case SDL_WINDOWEVENT_HIDDEN: 613 scon->hidden = true; 614 break; 615 } 616 } 617 618 void sdl2_poll_events(struct sdl2_console *scon) 619 { 620 SDL_Event ev1, *ev = &ev1; 621 bool allow_close = true; 622 int idle = 1; 623 624 if (scon->last_vm_running != runstate_is_running()) { 625 scon->last_vm_running = runstate_is_running(); 626 sdl_update_caption(scon); 627 } 628 629 while (SDL_PollEvent(ev)) { 630 switch (ev->type) { 631 case SDL_KEYDOWN: 632 idle = 0; 633 handle_keydown(ev); 634 break; 635 case SDL_KEYUP: 636 idle = 0; 637 handle_keyup(ev); 638 break; 639 case SDL_TEXTINPUT: 640 idle = 0; 641 handle_textinput(ev); 642 break; 643 case SDL_QUIT: 644 if (scon->opts->has_window_close && !scon->opts->window_close) { 645 allow_close = false; 646 } 647 if (allow_close) { 648 no_shutdown = 0; 649 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 650 } 651 break; 652 case SDL_MOUSEMOTION: 653 idle = 0; 654 handle_mousemotion(ev); 655 break; 656 case SDL_MOUSEBUTTONDOWN: 657 case SDL_MOUSEBUTTONUP: 658 idle = 0; 659 handle_mousebutton(ev); 660 break; 661 case SDL_MOUSEWHEEL: 662 idle = 0; 663 handle_mousewheel(ev); 664 break; 665 case SDL_WINDOWEVENT: 666 handle_windowevent(ev); 667 break; 668 default: 669 break; 670 } 671 } 672 673 if (idle) { 674 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 675 scon->idle_counter++; 676 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 677 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 678 } 679 } 680 } else { 681 scon->idle_counter = 0; 682 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 683 } 684 } 685 686 static void sdl_mouse_warp(DisplayChangeListener *dcl, 687 int x, int y, int on) 688 { 689 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 690 691 if (!qemu_console_is_graphic(scon->dcl.con)) { 692 return; 693 } 694 695 if (on) { 696 if (!guest_cursor) { 697 sdl_show_cursor(scon); 698 } 699 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 700 SDL_SetCursor(guest_sprite); 701 if (!qemu_input_is_absolute() && !absolute_enabled) { 702 SDL_WarpMouseInWindow(scon->real_window, x, y); 703 } 704 } 705 } else if (gui_grab) { 706 sdl_hide_cursor(scon); 707 } 708 guest_cursor = on; 709 guest_x = x, guest_y = y; 710 } 711 712 static void sdl_mouse_define(DisplayChangeListener *dcl, 713 QEMUCursor *c) 714 { 715 716 if (guest_sprite) { 717 SDL_FreeCursor(guest_sprite); 718 } 719 720 if (guest_sprite_surface) { 721 SDL_FreeSurface(guest_sprite_surface); 722 } 723 724 guest_sprite_surface = 725 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 726 0xff0000, 0x00ff00, 0xff, 0xff000000); 727 728 if (!guest_sprite_surface) { 729 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 730 return; 731 } 732 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 733 c->hot_x, c->hot_y); 734 if (!guest_sprite) { 735 fprintf(stderr, "Failed to make color cursor from %p\n", c); 736 return; 737 } 738 if (guest_cursor && 739 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 740 SDL_SetCursor(guest_sprite); 741 } 742 } 743 744 static void sdl_cleanup(void) 745 { 746 if (guest_sprite) { 747 SDL_FreeCursor(guest_sprite); 748 } 749 SDL_QuitSubSystem(SDL_INIT_VIDEO); 750 } 751 752 static const DisplayChangeListenerOps dcl_2d_ops = { 753 .dpy_name = "sdl2-2d", 754 .dpy_gfx_update = sdl2_2d_update, 755 .dpy_gfx_switch = sdl2_2d_switch, 756 .dpy_gfx_check_format = sdl2_2d_check_format, 757 .dpy_refresh = sdl2_2d_refresh, 758 .dpy_mouse_set = sdl_mouse_warp, 759 .dpy_cursor_define = sdl_mouse_define, 760 }; 761 762 #ifdef CONFIG_OPENGL 763 static const DisplayChangeListenerOps dcl_gl_ops = { 764 .dpy_name = "sdl2-gl", 765 .dpy_gfx_update = sdl2_gl_update, 766 .dpy_gfx_switch = sdl2_gl_switch, 767 .dpy_gfx_check_format = console_gl_check_format, 768 .dpy_refresh = sdl2_gl_refresh, 769 .dpy_mouse_set = sdl_mouse_warp, 770 .dpy_cursor_define = sdl_mouse_define, 771 772 .dpy_gl_ctx_create = sdl2_gl_create_context, 773 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 774 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 775 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, 776 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 777 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 778 .dpy_gl_update = sdl2_gl_scanout_flush, 779 }; 780 #endif 781 782 static void sdl2_display_early_init(DisplayOptions *o) 783 { 784 assert(o->type == DISPLAY_TYPE_SDL); 785 if (o->has_gl && o->gl) { 786 #ifdef CONFIG_OPENGL 787 display_opengl = 1; 788 #endif 789 } 790 } 791 792 static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) 793 { 794 uint8_t data = 0; 795 int i; 796 SDL_SysWMinfo info; 797 SDL_Surface *icon = NULL; 798 799 assert(o->type == DISPLAY_TYPE_SDL); 800 801 #ifdef __linux__ 802 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 803 * accessible $DISPLAY to open X11 window. This is often the case 804 * when qemu is run using sudo. But in this case, and when actually 805 * run in X11 environment, SDL fights with X11 for the video card, 806 * making current display unavailable, often until reboot. 807 * So make x11 the default SDL video driver if this variable is unset. 808 * This is a bit hackish but saves us from bigger problem. 809 * Maybe it's a good idea to fix this in SDL instead. 810 */ 811 g_setenv("SDL_VIDEODRIVER", "x11", 0); 812 #endif 813 814 if (SDL_Init(SDL_INIT_VIDEO)) { 815 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 816 SDL_GetError()); 817 exit(1); 818 } 819 #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */ 820 SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0"); 821 #endif 822 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 823 memset(&info, 0, sizeof(info)); 824 SDL_VERSION(&info.version); 825 826 gui_fullscreen = o->has_full_screen && o->full_screen; 827 828 for (i = 0;; i++) { 829 QemuConsole *con = qemu_console_lookup_by_index(i); 830 if (!con) { 831 break; 832 } 833 } 834 sdl2_num_outputs = i; 835 if (sdl2_num_outputs == 0) { 836 return; 837 } 838 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 839 for (i = 0; i < sdl2_num_outputs; i++) { 840 QemuConsole *con = qemu_console_lookup_by_index(i); 841 assert(con != NULL); 842 if (!qemu_console_is_graphic(con) && 843 qemu_console_get_index(con) != 0) { 844 sdl2_console[i].hidden = true; 845 } 846 sdl2_console[i].idx = i; 847 sdl2_console[i].opts = o; 848 #ifdef CONFIG_OPENGL 849 sdl2_console[i].opengl = display_opengl; 850 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 851 #else 852 sdl2_console[i].opengl = 0; 853 sdl2_console[i].dcl.ops = &dcl_2d_ops; 854 #endif 855 sdl2_console[i].dcl.con = con; 856 sdl2_console[i].kbd = qkbd_state_init(con); 857 register_displaychangelistener(&sdl2_console[i].dcl); 858 859 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 860 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 861 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 862 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 863 #elif defined(SDL_VIDEO_DRIVER_X11) 864 qemu_console_set_window_id(con, info.info.x11.window); 865 #endif 866 } 867 #endif 868 } 869 870 #ifdef CONFIG_SDL_IMAGE 871 icon = IMG_Load(CONFIG_QEMU_ICONDIR "/hicolor/128x128/apps/qemu.png"); 872 #else 873 /* Load a 32x32x4 image. White pixels are transparent. */ 874 icon = SDL_LoadBMP(CONFIG_QEMU_ICONDIR "/hicolor/32x32/apps/qemu.bmp"); 875 if (icon) { 876 uint32_t colorkey = SDL_MapRGB(icon->format, 255, 255, 255); 877 SDL_SetColorKey(icon, SDL_TRUE, colorkey); 878 } 879 #endif 880 if (icon) { 881 SDL_SetWindowIcon(sdl2_console[0].real_window, icon); 882 } 883 884 mouse_mode_notifier.notify = sdl_mouse_mode_change; 885 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 886 887 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 888 sdl_cursor_normal = SDL_GetCursor(); 889 890 if (gui_fullscreen) { 891 sdl_grab_start(&sdl2_console[0]); 892 } 893 894 atexit(sdl_cleanup); 895 } 896 897 static QemuDisplay qemu_display_sdl2 = { 898 .type = DISPLAY_TYPE_SDL, 899 .early_init = sdl2_display_early_init, 900 .init = sdl2_display_init, 901 }; 902 903 static void register_sdl1(void) 904 { 905 qemu_display_register(&qemu_display_sdl2); 906 } 907 908 type_init(register_sdl1); 909
