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 "qemu/cutils.h" 29 #include "ui/console.h" 30 #include "ui/input.h" 31 #include "ui/sdl2.h" 32 #include "sysemu/runstate.h" 33 #include "sysemu/sysemu.h" 34 #include "ui/win32-kbd-hook.h" 35 36 static int sdl2_num_outputs; 37 static struct sdl2_console *sdl2_console; 38 39 static SDL_Surface *guest_sprite_surface; 40 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ 41 42 static int gui_saved_grab; 43 static int gui_fullscreen; 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-G to exit grab"; 145 } else if (ctrl_grab) { 146 status = " - Press Right-Ctrl-G to exit grab"; 147 } else { 148 status = " - Press Ctrl-Alt-G 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(struct sdl2_console *scon) 167 { 168 if (scon->opts->has_show_cursor && scon->opts->show_cursor) { 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(struct sdl2_console *scon) 181 { 182 if (scon->opts->has_show_cursor && scon->opts->show_cursor) { 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(scon); 222 } 223 SDL_SetWindowGrab(scon->real_window, SDL_TRUE); 224 gui_grab = 1; 225 win32_kbd_set_grab(true); 226 sdl_update_caption(scon); 227 } 228 229 static void sdl_grab_end(struct sdl2_console *scon) 230 { 231 SDL_SetWindowGrab(scon->real_window, SDL_FALSE); 232 gui_grab = 0; 233 win32_kbd_set_grab(false); 234 sdl_show_cursor(scon); 235 sdl_update_caption(scon); 236 } 237 238 static void absolute_mouse_grab(struct sdl2_console *scon) 239 { 240 int mouse_x, mouse_y; 241 int scr_w, scr_h; 242 SDL_GetMouseState(&mouse_x, &mouse_y); 243 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 244 if (mouse_x > 0 && mouse_x < scr_w - 1 && 245 mouse_y > 0 && mouse_y < scr_h - 1) { 246 sdl_grab_start(scon); 247 } 248 } 249 250 static void sdl_mouse_mode_change(Notifier *notify, void *data) 251 { 252 if (qemu_input_is_absolute()) { 253 if (!absolute_enabled) { 254 absolute_enabled = 1; 255 SDL_SetRelativeMouseMode(SDL_FALSE); 256 absolute_mouse_grab(&sdl2_console[0]); 257 } 258 } else if (absolute_enabled) { 259 if (!gui_fullscreen) { 260 sdl_grab_end(&sdl2_console[0]); 261 } 262 absolute_enabled = 0; 263 } 264 } 265 266 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy, 267 int x, int y, int state) 268 { 269 static uint32_t bmap[INPUT_BUTTON__MAX] = { 270 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT), 271 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE), 272 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT), 273 }; 274 static uint32_t prev_state; 275 276 if (prev_state != state) { 277 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); 278 prev_state = state; 279 } 280 281 if (qemu_input_is_absolute()) { 282 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, 283 x, 0, surface_width(scon->surface)); 284 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, 285 y, 0, surface_height(scon->surface)); 286 } else { 287 if (guest_cursor) { 288 x -= guest_x; 289 y -= guest_y; 290 guest_x += x; 291 guest_y += y; 292 dx = x; 293 dy = y; 294 } 295 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 296 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 297 } 298 qemu_input_event_sync(); 299 } 300 301 static void toggle_full_screen(struct sdl2_console *scon) 302 { 303 gui_fullscreen = !gui_fullscreen; 304 if (gui_fullscreen) { 305 SDL_SetWindowFullscreen(scon->real_window, 306 SDL_WINDOW_FULLSCREEN_DESKTOP); 307 gui_saved_grab = gui_grab; 308 sdl_grab_start(scon); 309 } else { 310 if (!gui_saved_grab) { 311 sdl_grab_end(scon); 312 } 313 SDL_SetWindowFullscreen(scon->real_window, 0); 314 } 315 sdl2_redraw(scon); 316 } 317 318 static int get_mod_state(void) 319 { 320 SDL_Keymod mod = SDL_GetModState(); 321 322 if (alt_grab) { 323 return (mod & (gui_grab_code | KMOD_LSHIFT)) == 324 (gui_grab_code | KMOD_LSHIFT); 325 } else if (ctrl_grab) { 326 return (mod & KMOD_RCTRL) == KMOD_RCTRL; 327 } else { 328 return (mod & gui_grab_code) == gui_grab_code; 329 } 330 } 331 332 static void *sdl2_win32_get_hwnd(struct sdl2_console *scon) 333 { 334 #ifdef CONFIG_WIN32 335 SDL_SysWMinfo info; 336 337 SDL_VERSION(&info.version); 338 if (SDL_GetWindowWMInfo(scon->real_window, &info)) { 339 return info.info.win.window; 340 } 341 #endif 342 return NULL; 343 } 344 345 static void handle_keydown(SDL_Event *ev) 346 { 347 int win; 348 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 349 int gui_key_modifier_pressed = get_mod_state(); 350 int gui_keysym = 0; 351 352 if (!scon) { 353 return; 354 } 355 356 if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) { 357 switch (ev->key.keysym.scancode) { 358 case SDL_SCANCODE_2: 359 case SDL_SCANCODE_3: 360 case SDL_SCANCODE_4: 361 case SDL_SCANCODE_5: 362 case SDL_SCANCODE_6: 363 case SDL_SCANCODE_7: 364 case SDL_SCANCODE_8: 365 case SDL_SCANCODE_9: 366 if (gui_grab) { 367 sdl_grab_end(scon); 368 } 369 370 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 371 if (win < sdl2_num_outputs) { 372 sdl2_console[win].hidden = !sdl2_console[win].hidden; 373 if (sdl2_console[win].real_window) { 374 if (sdl2_console[win].hidden) { 375 SDL_HideWindow(sdl2_console[win].real_window); 376 } else { 377 SDL_ShowWindow(sdl2_console[win].real_window); 378 } 379 } 380 gui_keysym = 1; 381 } 382 break; 383 case SDL_SCANCODE_F: 384 toggle_full_screen(scon); 385 gui_keysym = 1; 386 break; 387 case SDL_SCANCODE_G: 388 gui_keysym = 1; 389 if (!gui_grab) { 390 sdl_grab_start(scon); 391 } else if (!gui_fullscreen) { 392 sdl_grab_end(scon); 393 } 394 break; 395 case SDL_SCANCODE_U: 396 sdl2_window_resize(scon); 397 if (!scon->opengl) { 398 /* re-create scon->texture */ 399 sdl2_2d_switch(&scon->dcl, scon->surface); 400 } 401 gui_keysym = 1; 402 break; 403 #if 0 404 case SDL_SCANCODE_KP_PLUS: 405 case SDL_SCANCODE_KP_MINUS: 406 if (!gui_fullscreen) { 407 int scr_w, scr_h; 408 int width, height; 409 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 410 411 width = MAX(scr_w + (ev->key.keysym.scancode == 412 SDL_SCANCODE_KP_PLUS ? 50 : -50), 413 160); 414 height = (surface_height(scon->surface) * width) / 415 surface_width(scon->surface); 416 fprintf(stderr, "%s: scale to %dx%d\n", 417 __func__, width, height); 418 sdl_scale(scon, width, height); 419 sdl2_redraw(scon); 420 gui_keysym = 1; 421 } 422 #endif 423 default: 424 break; 425 } 426 } 427 if (!gui_keysym) { 428 sdl2_process_key(scon, &ev->key); 429 } 430 } 431 432 static void handle_keyup(SDL_Event *ev) 433 { 434 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 435 436 if (!scon) { 437 return; 438 } 439 440 scon->ignore_hotkeys = false; 441 sdl2_process_key(scon, &ev->key); 442 } 443 444 static void handle_textinput(SDL_Event *ev) 445 { 446 struct sdl2_console *scon = get_scon_from_window(ev->text.windowID); 447 QemuConsole *con = scon ? scon->dcl.con : NULL; 448 449 if (!con) { 450 return; 451 } 452 453 if (qemu_console_is_graphic(con)) { 454 return; 455 } 456 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 457 } 458 459 static void handle_mousemotion(SDL_Event *ev) 460 { 461 int max_x, max_y; 462 struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID); 463 464 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 465 return; 466 } 467 468 if (qemu_input_is_absolute() || absolute_enabled) { 469 int scr_w, scr_h; 470 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 471 max_x = scr_w - 1; 472 max_y = scr_h - 1; 473 if (gui_grab && !gui_fullscreen 474 && (ev->motion.x == 0 || ev->motion.y == 0 || 475 ev->motion.x == max_x || ev->motion.y == max_y)) { 476 sdl_grab_end(scon); 477 } 478 if (!gui_grab && 479 (ev->motion.x > 0 && ev->motion.x < max_x && 480 ev->motion.y > 0 && ev->motion.y < max_y)) { 481 sdl_grab_start(scon); 482 } 483 } 484 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 485 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 486 ev->motion.x, ev->motion.y, ev->motion.state); 487 } 488 } 489 490 static void handle_mousebutton(SDL_Event *ev) 491 { 492 int buttonstate = SDL_GetMouseState(NULL, NULL); 493 SDL_MouseButtonEvent *bev; 494 struct sdl2_console *scon = get_scon_from_window(ev->button.windowID); 495 496 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 497 return; 498 } 499 500 bev = &ev->button; 501 if (!gui_grab && !qemu_input_is_absolute()) { 502 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 503 /* start grabbing all events */ 504 sdl_grab_start(scon); 505 } 506 } else { 507 if (ev->type == SDL_MOUSEBUTTONDOWN) { 508 buttonstate |= SDL_BUTTON(bev->button); 509 } else { 510 buttonstate &= ~SDL_BUTTON(bev->button); 511 } 512 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 513 } 514 } 515 516 static void handle_mousewheel(SDL_Event *ev) 517 { 518 struct sdl2_console *scon = get_scon_from_window(ev->wheel.windowID); 519 SDL_MouseWheelEvent *wev = &ev->wheel; 520 InputButton btn; 521 522 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 523 return; 524 } 525 526 if (wev->y > 0) { 527 btn = INPUT_BUTTON_WHEEL_UP; 528 } else if (wev->y < 0) { 529 btn = INPUT_BUTTON_WHEEL_DOWN; 530 } else { 531 return; 532 } 533 534 qemu_input_queue_btn(scon->dcl.con, btn, true); 535 qemu_input_event_sync(); 536 qemu_input_queue_btn(scon->dcl.con, btn, false); 537 qemu_input_event_sync(); 538 } 539 540 static void handle_windowevent(SDL_Event *ev) 541 { 542 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 543 bool allow_close = true; 544 545 if (!scon) { 546 return; 547 } 548 549 switch (ev->window.event) { 550 case SDL_WINDOWEVENT_RESIZED: 551 { 552 QemuUIInfo info; 553 memset(&info, 0, sizeof(info)); 554 info.width = ev->window.data1; 555 info.height = ev->window.data2; 556 dpy_set_ui_info(scon->dcl.con, &info); 557 } 558 sdl2_redraw(scon); 559 break; 560 case SDL_WINDOWEVENT_EXPOSED: 561 sdl2_redraw(scon); 562 break; 563 case SDL_WINDOWEVENT_FOCUS_GAINED: 564 win32_kbd_set_grab(gui_grab); 565 if (qemu_console_is_graphic(scon->dcl.con)) { 566 win32_kbd_set_window(sdl2_win32_get_hwnd(scon)); 567 } 568 /* fall through */ 569 case SDL_WINDOWEVENT_ENTER: 570 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 571 absolute_mouse_grab(scon); 572 } 573 /* If a new console window opened using a hotkey receives the 574 * focus, SDL sends another KEYDOWN event to the new window, 575 * closing the console window immediately after. 576 * 577 * Work around this by ignoring further hotkey events until a 578 * key is released. 579 */ 580 scon->ignore_hotkeys = get_mod_state(); 581 break; 582 case SDL_WINDOWEVENT_FOCUS_LOST: 583 if (qemu_console_is_graphic(scon->dcl.con)) { 584 win32_kbd_set_window(NULL); 585 } 586 if (gui_grab && !gui_fullscreen) { 587 sdl_grab_end(scon); 588 } 589 break; 590 case SDL_WINDOWEVENT_RESTORED: 591 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 592 break; 593 case SDL_WINDOWEVENT_MINIMIZED: 594 update_displaychangelistener(&scon->dcl, 500); 595 break; 596 case SDL_WINDOWEVENT_CLOSE: 597 if (qemu_console_is_graphic(scon->dcl.con)) { 598 if (scon->opts->has_window_close && !scon->opts->window_close) { 599 allow_close = false; 600 } 601 if (allow_close) { 602 no_shutdown = 0; 603 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 604 } 605 } else { 606 SDL_HideWindow(scon->real_window); 607 scon->hidden = true; 608 } 609 break; 610 case SDL_WINDOWEVENT_SHOWN: 611 scon->hidden = false; 612 break; 613 case SDL_WINDOWEVENT_HIDDEN: 614 scon->hidden = true; 615 break; 616 } 617 } 618 619 void sdl2_poll_events(struct sdl2_console *scon) 620 { 621 SDL_Event ev1, *ev = &ev1; 622 bool allow_close = true; 623 int idle = 1; 624 625 if (scon->last_vm_running != runstate_is_running()) { 626 scon->last_vm_running = runstate_is_running(); 627 sdl_update_caption(scon); 628 } 629 630 while (SDL_PollEvent(ev)) { 631 switch (ev->type) { 632 case SDL_KEYDOWN: 633 idle = 0; 634 handle_keydown(ev); 635 break; 636 case SDL_KEYUP: 637 idle = 0; 638 handle_keyup(ev); 639 break; 640 case SDL_TEXTINPUT: 641 idle = 0; 642 handle_textinput(ev); 643 break; 644 case SDL_QUIT: 645 if (scon->opts->has_window_close && !scon->opts->window_close) { 646 allow_close = false; 647 } 648 if (allow_close) { 649 no_shutdown = 0; 650 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 651 } 652 break; 653 case SDL_MOUSEMOTION: 654 idle = 0; 655 handle_mousemotion(ev); 656 break; 657 case SDL_MOUSEBUTTONDOWN: 658 case SDL_MOUSEBUTTONUP: 659 idle = 0; 660 handle_mousebutton(ev); 661 break; 662 case SDL_MOUSEWHEEL: 663 idle = 0; 664 handle_mousewheel(ev); 665 break; 666 case SDL_WINDOWEVENT: 667 handle_windowevent(ev); 668 break; 669 default: 670 break; 671 } 672 } 673 674 if (idle) { 675 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 676 scon->idle_counter++; 677 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 678 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 679 } 680 } 681 } else { 682 scon->idle_counter = 0; 683 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 684 } 685 } 686 687 static void sdl_mouse_warp(DisplayChangeListener *dcl, 688 int x, int y, int on) 689 { 690 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 691 692 if (!qemu_console_is_graphic(scon->dcl.con)) { 693 return; 694 } 695 696 if (on) { 697 if (!guest_cursor) { 698 sdl_show_cursor(scon); 699 } 700 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 701 SDL_SetCursor(guest_sprite); 702 if (!qemu_input_is_absolute() && !absolute_enabled) { 703 SDL_WarpMouseInWindow(scon->real_window, x, y); 704 } 705 } 706 } else if (gui_grab) { 707 sdl_hide_cursor(scon); 708 } 709 guest_cursor = on; 710 guest_x = x, guest_y = y; 711 } 712 713 static void sdl_mouse_define(DisplayChangeListener *dcl, 714 QEMUCursor *c) 715 { 716 717 if (guest_sprite) { 718 SDL_FreeCursor(guest_sprite); 719 } 720 721 if (guest_sprite_surface) { 722 SDL_FreeSurface(guest_sprite_surface); 723 } 724 725 guest_sprite_surface = 726 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 727 0xff0000, 0x00ff00, 0xff, 0xff000000); 728 729 if (!guest_sprite_surface) { 730 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 731 return; 732 } 733 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 734 c->hot_x, c->hot_y); 735 if (!guest_sprite) { 736 fprintf(stderr, "Failed to make color cursor from %p\n", c); 737 return; 738 } 739 if (guest_cursor && 740 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 741 SDL_SetCursor(guest_sprite); 742 } 743 } 744 745 static void sdl_cleanup(void) 746 { 747 if (guest_sprite) { 748 SDL_FreeCursor(guest_sprite); 749 } 750 SDL_QuitSubSystem(SDL_INIT_VIDEO); 751 } 752 753 static const DisplayChangeListenerOps dcl_2d_ops = { 754 .dpy_name = "sdl2-2d", 755 .dpy_gfx_update = sdl2_2d_update, 756 .dpy_gfx_switch = sdl2_2d_switch, 757 .dpy_gfx_check_format = sdl2_2d_check_format, 758 .dpy_refresh = sdl2_2d_refresh, 759 .dpy_mouse_set = sdl_mouse_warp, 760 .dpy_cursor_define = sdl_mouse_define, 761 }; 762 763 #ifdef CONFIG_OPENGL 764 static const DisplayChangeListenerOps dcl_gl_ops = { 765 .dpy_name = "sdl2-gl", 766 .dpy_gfx_update = sdl2_gl_update, 767 .dpy_gfx_switch = sdl2_gl_switch, 768 .dpy_gfx_check_format = console_gl_check_format, 769 .dpy_refresh = sdl2_gl_refresh, 770 .dpy_mouse_set = sdl_mouse_warp, 771 .dpy_cursor_define = sdl_mouse_define, 772 773 .dpy_gl_ctx_create = sdl2_gl_create_context, 774 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 775 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 776 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, 777 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 778 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 779 .dpy_gl_update = sdl2_gl_scanout_flush, 780 }; 781 #endif 782 783 static void sdl2_display_early_init(DisplayOptions *o) 784 { 785 assert(o->type == DISPLAY_TYPE_SDL); 786 if (o->has_gl && o->gl) { 787 #ifdef CONFIG_OPENGL 788 display_opengl = 1; 789 #endif 790 } 791 } 792 793 static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) 794 { 795 uint8_t data = 0; 796 int i; 797 SDL_SysWMinfo info; 798 SDL_Surface *icon = NULL; 799 char *dir; 800 801 assert(o->type == DISPLAY_TYPE_SDL); 802 803 #ifdef __linux__ 804 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 805 * accessible $DISPLAY to open X11 window. This is often the case 806 * when qemu is run using sudo. But in this case, and when actually 807 * run in X11 environment, SDL fights with X11 for the video card, 808 * making current display unavailable, often until reboot. 809 * So make x11 the default SDL video driver if this variable is unset. 810 * This is a bit hackish but saves us from bigger problem. 811 * Maybe it's a good idea to fix this in SDL instead. 812 */ 813 g_setenv("SDL_VIDEODRIVER", "x11", 0); 814 #endif 815 816 if (SDL_Init(SDL_INIT_VIDEO)) { 817 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 818 SDL_GetError()); 819 exit(1); 820 } 821 #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */ 822 SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0"); 823 #endif 824 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 825 memset(&info, 0, sizeof(info)); 826 SDL_VERSION(&info.version); 827 828 gui_fullscreen = o->has_full_screen && o->full_screen; 829 830 for (i = 0;; i++) { 831 QemuConsole *con = qemu_console_lookup_by_index(i); 832 if (!con) { 833 break; 834 } 835 } 836 sdl2_num_outputs = i; 837 if (sdl2_num_outputs == 0) { 838 return; 839 } 840 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 841 for (i = 0; i < sdl2_num_outputs; i++) { 842 QemuConsole *con = qemu_console_lookup_by_index(i); 843 assert(con != NULL); 844 if (!qemu_console_is_graphic(con) && 845 qemu_console_get_index(con) != 0) { 846 sdl2_console[i].hidden = true; 847 } 848 sdl2_console[i].idx = i; 849 sdl2_console[i].opts = o; 850 #ifdef CONFIG_OPENGL 851 sdl2_console[i].opengl = display_opengl; 852 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 853 #else 854 sdl2_console[i].opengl = 0; 855 sdl2_console[i].dcl.ops = &dcl_2d_ops; 856 #endif 857 sdl2_console[i].dcl.con = con; 858 sdl2_console[i].kbd = qkbd_state_init(con); 859 register_displaychangelistener(&sdl2_console[i].dcl); 860 861 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 862 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 863 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 864 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 865 #elif defined(SDL_VIDEO_DRIVER_X11) 866 qemu_console_set_window_id(con, info.info.x11.window); 867 #endif 868 } 869 #endif 870 } 871 872 #ifdef CONFIG_SDL_IMAGE 873 dir = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/128x128/apps/qemu.png"); 874 icon = IMG_Load(dir); 875 #else 876 /* Load a 32x32x4 image. White pixels are transparent. */ 877 dir = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/32x32/apps/qemu.bmp"); 878 icon = SDL_LoadBMP(dir); 879 if (icon) { 880 uint32_t colorkey = SDL_MapRGB(icon->format, 255, 255, 255); 881 SDL_SetColorKey(icon, SDL_TRUE, colorkey); 882 } 883 #endif 884 g_free(dir); 885 if (icon) { 886 SDL_SetWindowIcon(sdl2_console[0].real_window, icon); 887 } 888 889 mouse_mode_notifier.notify = sdl_mouse_mode_change; 890 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 891 892 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 893 sdl_cursor_normal = SDL_GetCursor(); 894 895 if (gui_fullscreen) { 896 sdl_grab_start(&sdl2_console[0]); 897 } 898 899 atexit(sdl_cleanup); 900 } 901 902 static QemuDisplay qemu_display_sdl2 = { 903 .type = DISPLAY_TYPE_SDL, 904 .early_init = sdl2_display_early_init, 905 .init = sdl2_display_init, 906 }; 907 908 static void register_sdl1(void) 909 { 910 qemu_display_register(&qemu_display_sdl2); 911 } 912 913 type_init(register_sdl1); 914
