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