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/runstate-action.h" 34 #include "sysemu/sysemu.h" 35 #include "ui/win32-kbd-hook.h" 36 #include "qemu/log.h" 37 38 static int sdl2_num_outputs; 39 static struct sdl2_console *sdl2_console; 40 41 static SDL_Surface *guest_sprite_surface; 42 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ 43 44 static int gui_saved_grab; 45 static int gui_fullscreen; 46 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL; 47 static SDL_Cursor *sdl_cursor_normal; 48 static SDL_Cursor *sdl_cursor_hidden; 49 static int absolute_enabled; 50 static int guest_cursor; 51 static int guest_x, guest_y; 52 static SDL_Cursor *guest_sprite; 53 static Notifier mouse_mode_notifier; 54 55 #define SDL2_REFRESH_INTERVAL_BUSY 10 56 #define SDL2_MAX_IDLE_COUNT (2 * GUI_REFRESH_INTERVAL_DEFAULT \ 57 / SDL2_REFRESH_INTERVAL_BUSY + 1) 58 59 static void sdl_update_caption(struct sdl2_console *scon); 60 61 static struct sdl2_console *get_scon_from_window(uint32_t window_id) 62 { 63 int i; 64 for (i = 0; i < sdl2_num_outputs; i++) { 65 if (sdl2_console[i].real_window == SDL_GetWindowFromID(window_id)) { 66 return &sdl2_console[i]; 67 } 68 } 69 return NULL; 70 } 71 72 void sdl2_window_create(struct sdl2_console *scon) 73 { 74 int flags = 0; 75 76 if (!scon->surface) { 77 return; 78 } 79 assert(!scon->real_window); 80 81 if (gui_fullscreen) { 82 flags |= SDL_WINDOW_FULLSCREEN_DESKTOP; 83 } else { 84 flags |= SDL_WINDOW_RESIZABLE; 85 } 86 if (scon->hidden) { 87 flags |= SDL_WINDOW_HIDDEN; 88 } 89 #ifdef CONFIG_OPENGL 90 if (scon->opengl) { 91 flags |= SDL_WINDOW_OPENGL; 92 } 93 #endif 94 95 scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, 96 SDL_WINDOWPOS_UNDEFINED, 97 surface_width(scon->surface), 98 surface_height(scon->surface), 99 flags); 100 scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0); 101 if (scon->opengl) { 102 scon->winctx = SDL_GL_GetCurrentContext(); 103 } 104 sdl_update_caption(scon); 105 } 106 107 void sdl2_window_destroy(struct sdl2_console *scon) 108 { 109 if (!scon->real_window) { 110 return; 111 } 112 113 SDL_DestroyRenderer(scon->real_renderer); 114 scon->real_renderer = NULL; 115 SDL_DestroyWindow(scon->real_window); 116 scon->real_window = NULL; 117 } 118 119 void sdl2_window_resize(struct sdl2_console *scon) 120 { 121 if (!scon->real_window) { 122 return; 123 } 124 125 SDL_SetWindowSize(scon->real_window, 126 surface_width(scon->surface), 127 surface_height(scon->surface)); 128 } 129 130 static void sdl2_redraw(struct sdl2_console *scon) 131 { 132 if (scon->opengl) { 133 #ifdef CONFIG_OPENGL 134 sdl2_gl_redraw(scon); 135 #endif 136 } else { 137 sdl2_2d_redraw(scon); 138 } 139 } 140 141 static void sdl_update_caption(struct sdl2_console *scon) 142 { 143 char win_title[1024]; 144 char icon_title[1024]; 145 const char *status = ""; 146 147 if (!runstate_is_running()) { 148 status = " [Stopped]"; 149 } else if (gui_grab) { 150 if (alt_grab) { 151 status = " - Press Ctrl-Alt-Shift-G to exit grab"; 152 } else if (ctrl_grab) { 153 status = " - Press Right-Ctrl-G to exit grab"; 154 } else { 155 status = " - Press Ctrl-Alt-G to exit grab"; 156 } 157 } 158 159 if (qemu_name) { 160 snprintf(win_title, sizeof(win_title), "QEMU (%s-%d)%s", qemu_name, 161 scon->idx, status); 162 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name); 163 } else { 164 snprintf(win_title, sizeof(win_title), "QEMU%s", status); 165 snprintf(icon_title, sizeof(icon_title), "QEMU"); 166 } 167 168 if (scon->real_window) { 169 SDL_SetWindowTitle(scon->real_window, win_title); 170 } 171 } 172 173 static void sdl_hide_cursor(struct sdl2_console *scon) 174 { 175 if (scon->opts->has_show_cursor && scon->opts->show_cursor) { 176 return; 177 } 178 179 SDL_ShowCursor(SDL_DISABLE); 180 SDL_SetCursor(sdl_cursor_hidden); 181 182 if (!qemu_input_is_absolute()) { 183 SDL_SetRelativeMouseMode(SDL_TRUE); 184 } 185 } 186 187 static void sdl_show_cursor(struct sdl2_console *scon) 188 { 189 if (scon->opts->has_show_cursor && scon->opts->show_cursor) { 190 return; 191 } 192 193 if (!qemu_input_is_absolute()) { 194 SDL_SetRelativeMouseMode(SDL_FALSE); 195 } 196 197 if (guest_cursor && 198 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 199 SDL_SetCursor(guest_sprite); 200 } else { 201 SDL_SetCursor(sdl_cursor_normal); 202 } 203 204 SDL_ShowCursor(SDL_ENABLE); 205 } 206 207 static void sdl_grab_start(struct sdl2_console *scon) 208 { 209 QemuConsole *con = scon ? scon->dcl.con : NULL; 210 211 if (!con || !qemu_console_is_graphic(con)) { 212 return; 213 } 214 /* 215 * If the application is not active, do not try to enter grab state. This 216 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the 217 * application (SDL bug). 218 */ 219 if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) { 220 return; 221 } 222 if (guest_cursor) { 223 SDL_SetCursor(guest_sprite); 224 if (!qemu_input_is_absolute() && !absolute_enabled) { 225 SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y); 226 } 227 } else { 228 sdl_hide_cursor(scon); 229 } 230 SDL_SetWindowGrab(scon->real_window, SDL_TRUE); 231 gui_grab = 1; 232 win32_kbd_set_grab(true); 233 sdl_update_caption(scon); 234 } 235 236 static void sdl_grab_end(struct sdl2_console *scon) 237 { 238 SDL_SetWindowGrab(scon->real_window, SDL_FALSE); 239 gui_grab = 0; 240 win32_kbd_set_grab(false); 241 sdl_show_cursor(scon); 242 sdl_update_caption(scon); 243 } 244 245 static void absolute_mouse_grab(struct sdl2_console *scon) 246 { 247 int mouse_x, mouse_y; 248 int scr_w, scr_h; 249 SDL_GetMouseState(&mouse_x, &mouse_y); 250 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 251 if (mouse_x > 0 && mouse_x < scr_w - 1 && 252 mouse_y > 0 && mouse_y < scr_h - 1) { 253 sdl_grab_start(scon); 254 } 255 } 256 257 static void sdl_mouse_mode_change(Notifier *notify, void *data) 258 { 259 if (qemu_input_is_absolute()) { 260 if (!absolute_enabled) { 261 absolute_enabled = 1; 262 SDL_SetRelativeMouseMode(SDL_FALSE); 263 absolute_mouse_grab(&sdl2_console[0]); 264 } 265 } else if (absolute_enabled) { 266 if (!gui_fullscreen) { 267 sdl_grab_end(&sdl2_console[0]); 268 } 269 absolute_enabled = 0; 270 } 271 } 272 273 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy, 274 int x, int y, int state) 275 { 276 static uint32_t bmap[INPUT_BUTTON__MAX] = { 277 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT), 278 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE), 279 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT), 280 [INPUT_BUTTON_SIDE] = SDL_BUTTON(SDL_BUTTON_X1), 281 [INPUT_BUTTON_EXTRA] = SDL_BUTTON(SDL_BUTTON_X2) 282 }; 283 static uint32_t prev_state; 284 285 if (prev_state != state) { 286 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); 287 prev_state = state; 288 } 289 290 if (qemu_input_is_absolute()) { 291 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, 292 x, 0, surface_width(scon->surface)); 293 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, 294 y, 0, surface_height(scon->surface)); 295 } else { 296 if (guest_cursor) { 297 x -= guest_x; 298 y -= guest_y; 299 guest_x += x; 300 guest_y += y; 301 dx = x; 302 dy = y; 303 } 304 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 305 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 306 } 307 qemu_input_event_sync(); 308 } 309 310 static void toggle_full_screen(struct sdl2_console *scon) 311 { 312 gui_fullscreen = !gui_fullscreen; 313 if (gui_fullscreen) { 314 SDL_SetWindowFullscreen(scon->real_window, 315 SDL_WINDOW_FULLSCREEN_DESKTOP); 316 gui_saved_grab = gui_grab; 317 sdl_grab_start(scon); 318 } else { 319 if (!gui_saved_grab) { 320 sdl_grab_end(scon); 321 } 322 SDL_SetWindowFullscreen(scon->real_window, 0); 323 } 324 sdl2_redraw(scon); 325 } 326 327 static int get_mod_state(void) 328 { 329 SDL_Keymod mod = SDL_GetModState(); 330 331 if (alt_grab) { 332 return (mod & (gui_grab_code | KMOD_LSHIFT)) == 333 (gui_grab_code | KMOD_LSHIFT); 334 } else if (ctrl_grab) { 335 return (mod & KMOD_RCTRL) == KMOD_RCTRL; 336 } else { 337 return (mod & gui_grab_code) == gui_grab_code; 338 } 339 } 340 341 static void *sdl2_win32_get_hwnd(struct sdl2_console *scon) 342 { 343 #ifdef CONFIG_WIN32 344 SDL_SysWMinfo info; 345 346 SDL_VERSION(&info.version); 347 if (SDL_GetWindowWMInfo(scon->real_window, &info)) { 348 return info.info.win.window; 349 } 350 #endif 351 return NULL; 352 } 353 354 static void handle_keydown(SDL_Event *ev) 355 { 356 int win; 357 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 358 int gui_key_modifier_pressed = get_mod_state(); 359 int gui_keysym = 0; 360 361 if (!scon) { 362 return; 363 } 364 365 if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) { 366 switch (ev->key.keysym.scancode) { 367 case SDL_SCANCODE_2: 368 case SDL_SCANCODE_3: 369 case SDL_SCANCODE_4: 370 case SDL_SCANCODE_5: 371 case SDL_SCANCODE_6: 372 case SDL_SCANCODE_7: 373 case SDL_SCANCODE_8: 374 case SDL_SCANCODE_9: 375 if (gui_grab) { 376 sdl_grab_end(scon); 377 } 378 379 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 380 if (win < sdl2_num_outputs) { 381 sdl2_console[win].hidden = !sdl2_console[win].hidden; 382 if (sdl2_console[win].real_window) { 383 if (sdl2_console[win].hidden) { 384 SDL_HideWindow(sdl2_console[win].real_window); 385 } else { 386 SDL_ShowWindow(sdl2_console[win].real_window); 387 } 388 } 389 gui_keysym = 1; 390 } 391 break; 392 case SDL_SCANCODE_F: 393 toggle_full_screen(scon); 394 gui_keysym = 1; 395 break; 396 case SDL_SCANCODE_G: 397 gui_keysym = 1; 398 if (!gui_grab) { 399 sdl_grab_start(scon); 400 } else if (!gui_fullscreen) { 401 sdl_grab_end(scon); 402 } 403 break; 404 case SDL_SCANCODE_U: 405 sdl2_window_resize(scon); 406 if (!scon->opengl) { 407 /* re-create scon->texture */ 408 sdl2_2d_switch(&scon->dcl, scon->surface); 409 } 410 gui_keysym = 1; 411 break; 412 #if 0 413 case SDL_SCANCODE_KP_PLUS: 414 case SDL_SCANCODE_KP_MINUS: 415 if (!gui_fullscreen) { 416 int scr_w, scr_h; 417 int width, height; 418 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 419 420 width = MAX(scr_w + (ev->key.keysym.scancode == 421 SDL_SCANCODE_KP_PLUS ? 50 : -50), 422 160); 423 height = (surface_height(scon->surface) * width) / 424 surface_width(scon->surface); 425 fprintf(stderr, "%s: scale to %dx%d\n", 426 __func__, width, height); 427 sdl_scale(scon, width, height); 428 sdl2_redraw(scon); 429 gui_keysym = 1; 430 } 431 #endif 432 default: 433 break; 434 } 435 } 436 if (!gui_keysym) { 437 sdl2_process_key(scon, &ev->key); 438 } 439 } 440 441 static void handle_keyup(SDL_Event *ev) 442 { 443 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 444 445 if (!scon) { 446 return; 447 } 448 449 scon->ignore_hotkeys = false; 450 sdl2_process_key(scon, &ev->key); 451 } 452 453 static void handle_textinput(SDL_Event *ev) 454 { 455 struct sdl2_console *scon = get_scon_from_window(ev->text.windowID); 456 QemuConsole *con = scon ? scon->dcl.con : NULL; 457 458 if (!con) { 459 return; 460 } 461 462 if (qemu_console_is_graphic(con)) { 463 return; 464 } 465 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 466 } 467 468 static void handle_mousemotion(SDL_Event *ev) 469 { 470 int max_x, max_y; 471 struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID); 472 473 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 474 return; 475 } 476 477 if (qemu_input_is_absolute() || absolute_enabled) { 478 int scr_w, scr_h; 479 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 480 max_x = scr_w - 1; 481 max_y = scr_h - 1; 482 if (gui_grab && !gui_fullscreen 483 && (ev->motion.x == 0 || ev->motion.y == 0 || 484 ev->motion.x == max_x || ev->motion.y == max_y)) { 485 sdl_grab_end(scon); 486 } 487 if (!gui_grab && 488 (ev->motion.x > 0 && ev->motion.x < max_x && 489 ev->motion.y > 0 && ev->motion.y < max_y)) { 490 sdl_grab_start(scon); 491 } 492 } 493 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 494 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 495 ev->motion.x, ev->motion.y, ev->motion.state); 496 } 497 } 498 499 static void handle_mousebutton(SDL_Event *ev) 500 { 501 int buttonstate = SDL_GetMouseState(NULL, NULL); 502 SDL_MouseButtonEvent *bev; 503 struct sdl2_console *scon = get_scon_from_window(ev->button.windowID); 504 505 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 506 return; 507 } 508 509 bev = &ev->button; 510 if (!gui_grab && !qemu_input_is_absolute()) { 511 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 512 /* start grabbing all events */ 513 sdl_grab_start(scon); 514 } 515 } else { 516 if (ev->type == SDL_MOUSEBUTTONDOWN) { 517 buttonstate |= SDL_BUTTON(bev->button); 518 } else { 519 buttonstate &= ~SDL_BUTTON(bev->button); 520 } 521 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 522 } 523 } 524 525 static void handle_mousewheel(SDL_Event *ev) 526 { 527 struct sdl2_console *scon = get_scon_from_window(ev->wheel.windowID); 528 SDL_MouseWheelEvent *wev = &ev->wheel; 529 InputButton btn; 530 531 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 532 return; 533 } 534 535 if (wev->y > 0) { 536 btn = INPUT_BUTTON_WHEEL_UP; 537 } else if (wev->y < 0) { 538 btn = INPUT_BUTTON_WHEEL_DOWN; 539 } else if (wev->x < 0) { 540 btn = INPUT_BUTTON_WHEEL_RIGHT; 541 } else if (wev->x > 0) { 542 btn = INPUT_BUTTON_WHEEL_LEFT; 543 } else { 544 return; 545 } 546 547 qemu_input_queue_btn(scon->dcl.con, btn, true); 548 qemu_input_event_sync(); 549 qemu_input_queue_btn(scon->dcl.con, btn, false); 550 qemu_input_event_sync(); 551 } 552 553 static void handle_windowevent(SDL_Event *ev) 554 { 555 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 556 bool allow_close = true; 557 558 if (!scon) { 559 return; 560 } 561 562 switch (ev->window.event) { 563 case SDL_WINDOWEVENT_RESIZED: 564 { 565 QemuUIInfo info; 566 memset(&info, 0, sizeof(info)); 567 info.width = ev->window.data1; 568 info.height = ev->window.data2; 569 dpy_set_ui_info(scon->dcl.con, &info, true); 570 } 571 sdl2_redraw(scon); 572 break; 573 case SDL_WINDOWEVENT_EXPOSED: 574 sdl2_redraw(scon); 575 break; 576 case SDL_WINDOWEVENT_FOCUS_GAINED: 577 win32_kbd_set_grab(gui_grab); 578 if (qemu_console_is_graphic(scon->dcl.con)) { 579 win32_kbd_set_window(sdl2_win32_get_hwnd(scon)); 580 } 581 /* fall through */ 582 case SDL_WINDOWEVENT_ENTER: 583 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 584 absolute_mouse_grab(scon); 585 } 586 /* If a new console window opened using a hotkey receives the 587 * focus, SDL sends another KEYDOWN event to the new window, 588 * closing the console window immediately after. 589 * 590 * Work around this by ignoring further hotkey events until a 591 * key is released. 592 */ 593 scon->ignore_hotkeys = get_mod_state(); 594 break; 595 case SDL_WINDOWEVENT_FOCUS_LOST: 596 if (qemu_console_is_graphic(scon->dcl.con)) { 597 win32_kbd_set_window(NULL); 598 } 599 if (gui_grab && !gui_fullscreen) { 600 sdl_grab_end(scon); 601 } 602 break; 603 case SDL_WINDOWEVENT_RESTORED: 604 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 605 break; 606 case SDL_WINDOWEVENT_MINIMIZED: 607 update_displaychangelistener(&scon->dcl, 500); 608 break; 609 case SDL_WINDOWEVENT_CLOSE: 610 if (qemu_console_is_graphic(scon->dcl.con)) { 611 if (scon->opts->has_window_close && !scon->opts->window_close) { 612 allow_close = false; 613 } 614 if (allow_close) { 615 shutdown_action = SHUTDOWN_ACTION_POWEROFF; 616 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 617 } 618 } else { 619 SDL_HideWindow(scon->real_window); 620 scon->hidden = true; 621 } 622 break; 623 case SDL_WINDOWEVENT_SHOWN: 624 scon->hidden = false; 625 break; 626 case SDL_WINDOWEVENT_HIDDEN: 627 scon->hidden = true; 628 break; 629 } 630 } 631 632 void sdl2_poll_events(struct sdl2_console *scon) 633 { 634 SDL_Event ev1, *ev = &ev1; 635 bool allow_close = true; 636 int idle = 1; 637 638 if (scon->last_vm_running != runstate_is_running()) { 639 scon->last_vm_running = runstate_is_running(); 640 sdl_update_caption(scon); 641 } 642 643 while (SDL_PollEvent(ev)) { 644 switch (ev->type) { 645 case SDL_KEYDOWN: 646 idle = 0; 647 handle_keydown(ev); 648 break; 649 case SDL_KEYUP: 650 idle = 0; 651 handle_keyup(ev); 652 break; 653 case SDL_TEXTINPUT: 654 idle = 0; 655 handle_textinput(ev); 656 break; 657 case SDL_QUIT: 658 if (scon->opts->has_window_close && !scon->opts->window_close) { 659 allow_close = false; 660 } 661 if (allow_close) { 662 shutdown_action = SHUTDOWN_ACTION_POWEROFF; 663 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 664 } 665 break; 666 case SDL_MOUSEMOTION: 667 idle = 0; 668 handle_mousemotion(ev); 669 break; 670 case SDL_MOUSEBUTTONDOWN: 671 case SDL_MOUSEBUTTONUP: 672 idle = 0; 673 handle_mousebutton(ev); 674 break; 675 case SDL_MOUSEWHEEL: 676 idle = 0; 677 handle_mousewheel(ev); 678 break; 679 case SDL_WINDOWEVENT: 680 handle_windowevent(ev); 681 break; 682 default: 683 break; 684 } 685 } 686 687 if (idle) { 688 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 689 scon->idle_counter++; 690 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 691 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 692 } 693 } 694 } else { 695 scon->idle_counter = 0; 696 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 697 } 698 } 699 700 static void sdl_mouse_warp(DisplayChangeListener *dcl, 701 int x, int y, int on) 702 { 703 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 704 705 if (!qemu_console_is_graphic(scon->dcl.con)) { 706 return; 707 } 708 709 if (on) { 710 if (!guest_cursor) { 711 sdl_show_cursor(scon); 712 } 713 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 714 SDL_SetCursor(guest_sprite); 715 if (!qemu_input_is_absolute() && !absolute_enabled) { 716 SDL_WarpMouseInWindow(scon->real_window, x, y); 717 } 718 } 719 } else if (gui_grab) { 720 sdl_hide_cursor(scon); 721 } 722 guest_cursor = on; 723 guest_x = x, guest_y = y; 724 } 725 726 static void sdl_mouse_define(DisplayChangeListener *dcl, 727 QEMUCursor *c) 728 { 729 730 if (guest_sprite) { 731 SDL_FreeCursor(guest_sprite); 732 } 733 734 if (guest_sprite_surface) { 735 SDL_FreeSurface(guest_sprite_surface); 736 } 737 738 guest_sprite_surface = 739 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 740 0xff0000, 0x00ff00, 0xff, 0xff000000); 741 742 if (!guest_sprite_surface) { 743 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 744 return; 745 } 746 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 747 c->hot_x, c->hot_y); 748 if (!guest_sprite) { 749 fprintf(stderr, "Failed to make color cursor from %p\n", c); 750 return; 751 } 752 if (guest_cursor && 753 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 754 SDL_SetCursor(guest_sprite); 755 } 756 } 757 758 static void sdl_cleanup(void) 759 { 760 if (guest_sprite) { 761 SDL_FreeCursor(guest_sprite); 762 } 763 SDL_QuitSubSystem(SDL_INIT_VIDEO); 764 } 765 766 static const DisplayChangeListenerOps dcl_2d_ops = { 767 .dpy_name = "sdl2-2d", 768 .dpy_gfx_update = sdl2_2d_update, 769 .dpy_gfx_switch = sdl2_2d_switch, 770 .dpy_gfx_check_format = sdl2_2d_check_format, 771 .dpy_refresh = sdl2_2d_refresh, 772 .dpy_mouse_set = sdl_mouse_warp, 773 .dpy_cursor_define = sdl_mouse_define, 774 }; 775 776 #ifdef CONFIG_OPENGL 777 static const DisplayChangeListenerOps dcl_gl_ops = { 778 .dpy_name = "sdl2-gl", 779 .dpy_gfx_update = sdl2_gl_update, 780 .dpy_gfx_switch = sdl2_gl_switch, 781 .dpy_gfx_check_format = console_gl_check_format, 782 .dpy_refresh = sdl2_gl_refresh, 783 .dpy_mouse_set = sdl_mouse_warp, 784 .dpy_cursor_define = sdl_mouse_define, 785 786 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 787 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 788 .dpy_gl_update = sdl2_gl_scanout_flush, 789 }; 790 791 static bool 792 sdl2_gl_is_compatible_dcl(DisplayGLCtx *dgc, 793 DisplayChangeListener *dcl) 794 { 795 return dcl->ops == &dcl_gl_ops; 796 } 797 798 static const DisplayGLCtxOps gl_ctx_ops = { 799 .dpy_gl_ctx_is_compatible_dcl = sdl2_gl_is_compatible_dcl, 800 .dpy_gl_ctx_create = sdl2_gl_create_context, 801 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 802 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 803 }; 804 #endif 805 806 static void sdl2_display_early_init(DisplayOptions *o) 807 { 808 assert(o->type == DISPLAY_TYPE_SDL); 809 if (o->has_gl && o->gl) { 810 #ifdef CONFIG_OPENGL 811 display_opengl = 1; 812 #endif 813 } 814 } 815 816 static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) 817 { 818 uint8_t data = 0; 819 int i; 820 SDL_SysWMinfo info; 821 SDL_Surface *icon = NULL; 822 char *dir; 823 824 assert(o->type == DISPLAY_TYPE_SDL); 825 826 #ifdef __linux__ 827 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 828 * accessible $DISPLAY to open X11 window. This is often the case 829 * when qemu is run using sudo. But in this case, and when actually 830 * run in X11 environment, SDL fights with X11 for the video card, 831 * making current display unavailable, often until reboot. 832 * So make x11 the default SDL video driver if this variable is unset. 833 * This is a bit hackish but saves us from bigger problem. 834 * Maybe it's a good idea to fix this in SDL instead. 835 */ 836 if (!g_setenv("SDL_VIDEODRIVER", "x11", 0)) { 837 fprintf(stderr, "Could not set SDL_VIDEODRIVER environment variable\n"); 838 exit(1); 839 } 840 #endif 841 842 if (SDL_Init(SDL_INIT_VIDEO)) { 843 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 844 SDL_GetError()); 845 exit(1); 846 } 847 #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */ 848 SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0"); 849 #endif 850 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 851 memset(&info, 0, sizeof(info)); 852 SDL_VERSION(&info.version); 853 854 gui_fullscreen = o->has_full_screen && o->full_screen; 855 856 for (i = 0;; i++) { 857 QemuConsole *con = qemu_console_lookup_by_index(i); 858 if (!con) { 859 break; 860 } 861 } 862 sdl2_num_outputs = i; 863 if (sdl2_num_outputs == 0) { 864 return; 865 } 866 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 867 for (i = 0; i < sdl2_num_outputs; i++) { 868 QemuConsole *con = qemu_console_lookup_by_index(i); 869 assert(con != NULL); 870 if (!qemu_console_is_graphic(con) && 871 qemu_console_get_index(con) != 0) { 872 sdl2_console[i].hidden = true; 873 } 874 sdl2_console[i].idx = i; 875 sdl2_console[i].opts = o; 876 #ifdef CONFIG_OPENGL 877 sdl2_console[i].opengl = display_opengl; 878 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 879 sdl2_console[i].dgc.ops = display_opengl ? &gl_ctx_ops : NULL; 880 #else 881 sdl2_console[i].opengl = 0; 882 sdl2_console[i].dcl.ops = &dcl_2d_ops; 883 #endif 884 sdl2_console[i].dcl.con = con; 885 sdl2_console[i].kbd = qkbd_state_init(con); 886 if (display_opengl) { 887 qemu_console_set_display_gl_ctx(con, &sdl2_console[i].dgc); 888 } 889 register_displaychangelistener(&sdl2_console[i].dcl); 890 891 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 892 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 893 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 894 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 895 #elif defined(SDL_VIDEO_DRIVER_X11) 896 qemu_console_set_window_id(con, info.info.x11.window); 897 #endif 898 } 899 #endif 900 } 901 902 #ifdef CONFIG_SDL_IMAGE 903 dir = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/128x128/apps/qemu.png"); 904 icon = IMG_Load(dir); 905 #else 906 /* Load a 32x32x4 image. White pixels are transparent. */ 907 dir = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/32x32/apps/qemu.bmp"); 908 icon = SDL_LoadBMP(dir); 909 if (icon) { 910 uint32_t colorkey = SDL_MapRGB(icon->format, 255, 255, 255); 911 SDL_SetColorKey(icon, SDL_TRUE, colorkey); 912 } 913 #endif 914 g_free(dir); 915 if (icon) { 916 SDL_SetWindowIcon(sdl2_console[0].real_window, icon); 917 } 918 919 mouse_mode_notifier.notify = sdl_mouse_mode_change; 920 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 921 922 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 923 sdl_cursor_normal = SDL_GetCursor(); 924 925 if (gui_fullscreen) { 926 sdl_grab_start(&sdl2_console[0]); 927 } 928 929 atexit(sdl_cleanup); 930 } 931 932 static QemuDisplay qemu_display_sdl2 = { 933 .type = DISPLAY_TYPE_SDL, 934 .early_init = sdl2_display_early_init, 935 .init = sdl2_display_init, 936 }; 937 938 static void register_sdl1(void) 939 { 940 qemu_display_register(&qemu_display_sdl2); 941 } 942 943 type_init(register_sdl1); 944 945 #ifdef CONFIG_OPENGL 946 module_dep("ui-opengl"); 947 #endif 948
