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 static bool alt_grab; 44 static bool ctrl_grab; 45 46 static int gui_saved_grab; 47 static int gui_fullscreen; 48 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL; 49 static SDL_Cursor *sdl_cursor_normal; 50 static SDL_Cursor *sdl_cursor_hidden; 51 static int absolute_enabled; 52 static int guest_cursor; 53 static int guest_x, guest_y; 54 static SDL_Cursor *guest_sprite; 55 static Notifier mouse_mode_notifier; 56 57 #define SDL2_REFRESH_INTERVAL_BUSY 10 58 #define SDL2_MAX_IDLE_COUNT (2 * GUI_REFRESH_INTERVAL_DEFAULT \ 59 / SDL2_REFRESH_INTERVAL_BUSY + 1) 60 61 static void sdl_update_caption(struct sdl2_console *scon); 62 63 static struct sdl2_console *get_scon_from_window(uint32_t window_id) 64 { 65 int i; 66 for (i = 0; i < sdl2_num_outputs; i++) { 67 if (sdl2_console[i].real_window == SDL_GetWindowFromID(window_id)) { 68 return &sdl2_console[i]; 69 } 70 } 71 return NULL; 72 } 73 74 void sdl2_window_create(struct sdl2_console *scon) 75 { 76 int flags = 0; 77 78 if (!scon->surface) { 79 return; 80 } 81 assert(!scon->real_window); 82 83 if (gui_fullscreen) { 84 flags |= SDL_WINDOW_FULLSCREEN_DESKTOP; 85 } else { 86 flags |= SDL_WINDOW_RESIZABLE; 87 } 88 if (scon->hidden) { 89 flags |= SDL_WINDOW_HIDDEN; 90 } 91 #ifdef CONFIG_OPENGL 92 if (scon->opengl) { 93 flags |= SDL_WINDOW_OPENGL; 94 } 95 #endif 96 97 scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, 98 SDL_WINDOWPOS_UNDEFINED, 99 surface_width(scon->surface), 100 surface_height(scon->surface), 101 flags); 102 scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0); 103 if (scon->opengl) { 104 scon->winctx = SDL_GL_GetCurrentContext(); 105 } 106 sdl_update_caption(scon); 107 } 108 109 void sdl2_window_destroy(struct sdl2_console *scon) 110 { 111 if (!scon->real_window) { 112 return; 113 } 114 115 SDL_DestroyRenderer(scon->real_renderer); 116 scon->real_renderer = NULL; 117 SDL_DestroyWindow(scon->real_window); 118 scon->real_window = NULL; 119 } 120 121 void sdl2_window_resize(struct sdl2_console *scon) 122 { 123 if (!scon->real_window) { 124 return; 125 } 126 127 SDL_SetWindowSize(scon->real_window, 128 surface_width(scon->surface), 129 surface_height(scon->surface)); 130 } 131 132 static void sdl2_redraw(struct sdl2_console *scon) 133 { 134 if (scon->opengl) { 135 #ifdef CONFIG_OPENGL 136 sdl2_gl_redraw(scon); 137 #endif 138 } else { 139 sdl2_2d_redraw(scon); 140 } 141 } 142 143 static void sdl_update_caption(struct sdl2_console *scon) 144 { 145 char win_title[1024]; 146 char icon_title[1024]; 147 const char *status = ""; 148 149 if (!runstate_is_running()) { 150 status = " [Stopped]"; 151 } else if (gui_grab) { 152 if (alt_grab) { 153 status = " - Press Ctrl-Alt-Shift-G to exit grab"; 154 } else if (ctrl_grab) { 155 status = " - Press Right-Ctrl-G to exit grab"; 156 } else { 157 status = " - Press Ctrl-Alt-G to exit grab"; 158 } 159 } 160 161 if (qemu_name) { 162 snprintf(win_title, sizeof(win_title), "QEMU (%s-%d)%s", qemu_name, 163 scon->idx, status); 164 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name); 165 } else { 166 snprintf(win_title, sizeof(win_title), "QEMU%s", status); 167 snprintf(icon_title, sizeof(icon_title), "QEMU"); 168 } 169 170 if (scon->real_window) { 171 SDL_SetWindowTitle(scon->real_window, win_title); 172 } 173 } 174 175 static void sdl_hide_cursor(struct sdl2_console *scon) 176 { 177 if (scon->opts->has_show_cursor && scon->opts->show_cursor) { 178 return; 179 } 180 181 SDL_ShowCursor(SDL_DISABLE); 182 SDL_SetCursor(sdl_cursor_hidden); 183 184 if (!qemu_input_is_absolute()) { 185 SDL_SetRelativeMouseMode(SDL_TRUE); 186 } 187 } 188 189 static void sdl_show_cursor(struct sdl2_console *scon) 190 { 191 if (scon->opts->has_show_cursor && scon->opts->show_cursor) { 192 return; 193 } 194 195 if (!qemu_input_is_absolute()) { 196 SDL_SetRelativeMouseMode(SDL_FALSE); 197 } 198 199 if (guest_cursor && 200 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 201 SDL_SetCursor(guest_sprite); 202 } else { 203 SDL_SetCursor(sdl_cursor_normal); 204 } 205 206 SDL_ShowCursor(SDL_ENABLE); 207 } 208 209 static void sdl_grab_start(struct sdl2_console *scon) 210 { 211 QemuConsole *con = scon ? scon->dcl.con : NULL; 212 213 if (!con || !qemu_console_is_graphic(con)) { 214 return; 215 } 216 /* 217 * If the application is not active, do not try to enter grab state. This 218 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the 219 * application (SDL bug). 220 */ 221 if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) { 222 return; 223 } 224 if (guest_cursor) { 225 SDL_SetCursor(guest_sprite); 226 if (!qemu_input_is_absolute() && !absolute_enabled) { 227 SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y); 228 } 229 } else { 230 sdl_hide_cursor(scon); 231 } 232 SDL_SetWindowGrab(scon->real_window, SDL_TRUE); 233 gui_grab = 1; 234 win32_kbd_set_grab(true); 235 sdl_update_caption(scon); 236 } 237 238 static void sdl_grab_end(struct sdl2_console *scon) 239 { 240 SDL_SetWindowGrab(scon->real_window, SDL_FALSE); 241 gui_grab = 0; 242 win32_kbd_set_grab(false); 243 sdl_show_cursor(scon); 244 sdl_update_caption(scon); 245 } 246 247 static void absolute_mouse_grab(struct sdl2_console *scon) 248 { 249 int mouse_x, mouse_y; 250 int scr_w, scr_h; 251 SDL_GetMouseState(&mouse_x, &mouse_y); 252 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 253 if (mouse_x > 0 && mouse_x < scr_w - 1 && 254 mouse_y > 0 && mouse_y < scr_h - 1) { 255 sdl_grab_start(scon); 256 } 257 } 258 259 static void sdl_mouse_mode_change(Notifier *notify, void *data) 260 { 261 if (qemu_input_is_absolute()) { 262 if (!absolute_enabled) { 263 absolute_enabled = 1; 264 SDL_SetRelativeMouseMode(SDL_FALSE); 265 absolute_mouse_grab(&sdl2_console[0]); 266 } 267 } else if (absolute_enabled) { 268 if (!gui_fullscreen) { 269 sdl_grab_end(&sdl2_console[0]); 270 } 271 absolute_enabled = 0; 272 } 273 } 274 275 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy, 276 int x, int y, int state) 277 { 278 static uint32_t bmap[INPUT_BUTTON__MAX] = { 279 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT), 280 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE), 281 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT), 282 [INPUT_BUTTON_SIDE] = SDL_BUTTON(SDL_BUTTON_X1), 283 [INPUT_BUTTON_EXTRA] = SDL_BUTTON(SDL_BUTTON_X2) 284 }; 285 static uint32_t prev_state; 286 287 if (prev_state != state) { 288 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); 289 prev_state = state; 290 } 291 292 if (qemu_input_is_absolute()) { 293 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, 294 x, 0, surface_width(scon->surface)); 295 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, 296 y, 0, surface_height(scon->surface)); 297 } else { 298 if (guest_cursor) { 299 x -= guest_x; 300 y -= guest_y; 301 guest_x += x; 302 guest_y += y; 303 dx = x; 304 dy = y; 305 } 306 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 307 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 308 } 309 qemu_input_event_sync(); 310 } 311 312 static void toggle_full_screen(struct sdl2_console *scon) 313 { 314 gui_fullscreen = !gui_fullscreen; 315 if (gui_fullscreen) { 316 SDL_SetWindowFullscreen(scon->real_window, 317 SDL_WINDOW_FULLSCREEN_DESKTOP); 318 gui_saved_grab = gui_grab; 319 sdl_grab_start(scon); 320 } else { 321 if (!gui_saved_grab) { 322 sdl_grab_end(scon); 323 } 324 SDL_SetWindowFullscreen(scon->real_window, 0); 325 } 326 sdl2_redraw(scon); 327 } 328 329 static int get_mod_state(void) 330 { 331 SDL_Keymod mod = SDL_GetModState(); 332 333 if (alt_grab) { 334 return (mod & (gui_grab_code | KMOD_LSHIFT)) == 335 (gui_grab_code | KMOD_LSHIFT); 336 } else if (ctrl_grab) { 337 return (mod & KMOD_RCTRL) == KMOD_RCTRL; 338 } else { 339 return (mod & gui_grab_code) == gui_grab_code; 340 } 341 } 342 343 static void *sdl2_win32_get_hwnd(struct sdl2_console *scon) 344 { 345 #ifdef CONFIG_WIN32 346 SDL_SysWMinfo info; 347 348 SDL_VERSION(&info.version); 349 if (SDL_GetWindowWMInfo(scon->real_window, &info)) { 350 return info.info.win.window; 351 } 352 #endif 353 return NULL; 354 } 355 356 static void handle_keydown(SDL_Event *ev) 357 { 358 int win; 359 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 360 int gui_key_modifier_pressed = get_mod_state(); 361 int gui_keysym = 0; 362 363 if (!scon) { 364 return; 365 } 366 367 if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) { 368 switch (ev->key.keysym.scancode) { 369 case SDL_SCANCODE_2: 370 case SDL_SCANCODE_3: 371 case SDL_SCANCODE_4: 372 case SDL_SCANCODE_5: 373 case SDL_SCANCODE_6: 374 case SDL_SCANCODE_7: 375 case SDL_SCANCODE_8: 376 case SDL_SCANCODE_9: 377 if (gui_grab) { 378 sdl_grab_end(scon); 379 } 380 381 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 382 if (win < sdl2_num_outputs) { 383 sdl2_console[win].hidden = !sdl2_console[win].hidden; 384 if (sdl2_console[win].real_window) { 385 if (sdl2_console[win].hidden) { 386 SDL_HideWindow(sdl2_console[win].real_window); 387 } else { 388 SDL_ShowWindow(sdl2_console[win].real_window); 389 } 390 } 391 gui_keysym = 1; 392 } 393 break; 394 case SDL_SCANCODE_F: 395 toggle_full_screen(scon); 396 gui_keysym = 1; 397 break; 398 case SDL_SCANCODE_G: 399 gui_keysym = 1; 400 if (!gui_grab) { 401 sdl_grab_start(scon); 402 } else if (!gui_fullscreen) { 403 sdl_grab_end(scon); 404 } 405 break; 406 case SDL_SCANCODE_U: 407 sdl2_window_resize(scon); 408 if (!scon->opengl) { 409 /* re-create scon->texture */ 410 sdl2_2d_switch(&scon->dcl, scon->surface); 411 } 412 gui_keysym = 1; 413 break; 414 #if 0 415 case SDL_SCANCODE_KP_PLUS: 416 case SDL_SCANCODE_KP_MINUS: 417 if (!gui_fullscreen) { 418 int scr_w, scr_h; 419 int width, height; 420 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 421 422 width = MAX(scr_w + (ev->key.keysym.scancode == 423 SDL_SCANCODE_KP_PLUS ? 50 : -50), 424 160); 425 height = (surface_height(scon->surface) * width) / 426 surface_width(scon->surface); 427 fprintf(stderr, "%s: scale to %dx%d\n", 428 __func__, width, height); 429 sdl_scale(scon, width, height); 430 sdl2_redraw(scon); 431 gui_keysym = 1; 432 } 433 #endif 434 default: 435 break; 436 } 437 } 438 if (!gui_keysym) { 439 sdl2_process_key(scon, &ev->key); 440 } 441 } 442 443 static void handle_keyup(SDL_Event *ev) 444 { 445 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 446 447 if (!scon) { 448 return; 449 } 450 451 scon->ignore_hotkeys = false; 452 sdl2_process_key(scon, &ev->key); 453 } 454 455 static void handle_textinput(SDL_Event *ev) 456 { 457 struct sdl2_console *scon = get_scon_from_window(ev->text.windowID); 458 QemuConsole *con = scon ? scon->dcl.con : NULL; 459 460 if (!con) { 461 return; 462 } 463 464 if (qemu_console_is_graphic(con)) { 465 return; 466 } 467 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 468 } 469 470 static void handle_mousemotion(SDL_Event *ev) 471 { 472 int max_x, max_y; 473 struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID); 474 475 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 476 return; 477 } 478 479 if (qemu_input_is_absolute() || absolute_enabled) { 480 int scr_w, scr_h; 481 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 482 max_x = scr_w - 1; 483 max_y = scr_h - 1; 484 if (gui_grab && !gui_fullscreen 485 && (ev->motion.x == 0 || ev->motion.y == 0 || 486 ev->motion.x == max_x || ev->motion.y == max_y)) { 487 sdl_grab_end(scon); 488 } 489 if (!gui_grab && 490 (ev->motion.x > 0 && ev->motion.x < max_x && 491 ev->motion.y > 0 && ev->motion.y < max_y)) { 492 sdl_grab_start(scon); 493 } 494 } 495 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 496 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 497 ev->motion.x, ev->motion.y, ev->motion.state); 498 } 499 } 500 501 static void handle_mousebutton(SDL_Event *ev) 502 { 503 int buttonstate = SDL_GetMouseState(NULL, NULL); 504 SDL_MouseButtonEvent *bev; 505 struct sdl2_console *scon = get_scon_from_window(ev->button.windowID); 506 507 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 508 return; 509 } 510 511 bev = &ev->button; 512 if (!gui_grab && !qemu_input_is_absolute()) { 513 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 514 /* start grabbing all events */ 515 sdl_grab_start(scon); 516 } 517 } else { 518 if (ev->type == SDL_MOUSEBUTTONDOWN) { 519 buttonstate |= SDL_BUTTON(bev->button); 520 } else { 521 buttonstate &= ~SDL_BUTTON(bev->button); 522 } 523 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 524 } 525 } 526 527 static void handle_mousewheel(SDL_Event *ev) 528 { 529 struct sdl2_console *scon = get_scon_from_window(ev->wheel.windowID); 530 SDL_MouseWheelEvent *wev = &ev->wheel; 531 InputButton btn; 532 533 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 534 return; 535 } 536 537 if (wev->y > 0) { 538 btn = INPUT_BUTTON_WHEEL_UP; 539 } else if (wev->y < 0) { 540 btn = INPUT_BUTTON_WHEEL_DOWN; 541 } else if (wev->x < 0) { 542 btn = INPUT_BUTTON_WHEEL_RIGHT; 543 } else if (wev->x > 0) { 544 btn = INPUT_BUTTON_WHEEL_LEFT; 545 } else { 546 return; 547 } 548 549 qemu_input_queue_btn(scon->dcl.con, btn, true); 550 qemu_input_event_sync(); 551 qemu_input_queue_btn(scon->dcl.con, btn, false); 552 qemu_input_event_sync(); 553 } 554 555 static void handle_windowevent(SDL_Event *ev) 556 { 557 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 558 bool allow_close = true; 559 560 if (!scon) { 561 return; 562 } 563 564 switch (ev->window.event) { 565 case SDL_WINDOWEVENT_RESIZED: 566 { 567 QemuUIInfo info; 568 memset(&info, 0, sizeof(info)); 569 info.width = ev->window.data1; 570 info.height = ev->window.data2; 571 dpy_set_ui_info(scon->dcl.con, &info, true); 572 } 573 sdl2_redraw(scon); 574 break; 575 case SDL_WINDOWEVENT_EXPOSED: 576 sdl2_redraw(scon); 577 break; 578 case SDL_WINDOWEVENT_FOCUS_GAINED: 579 win32_kbd_set_grab(gui_grab); 580 if (qemu_console_is_graphic(scon->dcl.con)) { 581 win32_kbd_set_window(sdl2_win32_get_hwnd(scon)); 582 } 583 /* fall through */ 584 case SDL_WINDOWEVENT_ENTER: 585 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 586 absolute_mouse_grab(scon); 587 } 588 /* If a new console window opened using a hotkey receives the 589 * focus, SDL sends another KEYDOWN event to the new window, 590 * closing the console window immediately after. 591 * 592 * Work around this by ignoring further hotkey events until a 593 * key is released. 594 */ 595 scon->ignore_hotkeys = get_mod_state(); 596 break; 597 case SDL_WINDOWEVENT_FOCUS_LOST: 598 if (qemu_console_is_graphic(scon->dcl.con)) { 599 win32_kbd_set_window(NULL); 600 } 601 if (gui_grab && !gui_fullscreen) { 602 sdl_grab_end(scon); 603 } 604 break; 605 case SDL_WINDOWEVENT_RESTORED: 606 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 607 break; 608 case SDL_WINDOWEVENT_MINIMIZED: 609 update_displaychangelistener(&scon->dcl, 500); 610 break; 611 case SDL_WINDOWEVENT_CLOSE: 612 if (qemu_console_is_graphic(scon->dcl.con)) { 613 if (scon->opts->has_window_close && !scon->opts->window_close) { 614 allow_close = false; 615 } 616 if (allow_close) { 617 shutdown_action = SHUTDOWN_ACTION_POWEROFF; 618 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 619 } 620 } else { 621 SDL_HideWindow(scon->real_window); 622 scon->hidden = true; 623 } 624 break; 625 case SDL_WINDOWEVENT_SHOWN: 626 scon->hidden = false; 627 break; 628 case SDL_WINDOWEVENT_HIDDEN: 629 scon->hidden = true; 630 break; 631 } 632 } 633 634 void sdl2_poll_events(struct sdl2_console *scon) 635 { 636 SDL_Event ev1, *ev = &ev1; 637 bool allow_close = true; 638 int idle = 1; 639 640 if (scon->last_vm_running != runstate_is_running()) { 641 scon->last_vm_running = runstate_is_running(); 642 sdl_update_caption(scon); 643 } 644 645 while (SDL_PollEvent(ev)) { 646 switch (ev->type) { 647 case SDL_KEYDOWN: 648 idle = 0; 649 handle_keydown(ev); 650 break; 651 case SDL_KEYUP: 652 idle = 0; 653 handle_keyup(ev); 654 break; 655 case SDL_TEXTINPUT: 656 idle = 0; 657 handle_textinput(ev); 658 break; 659 case SDL_QUIT: 660 if (scon->opts->has_window_close && !scon->opts->window_close) { 661 allow_close = false; 662 } 663 if (allow_close) { 664 shutdown_action = SHUTDOWN_ACTION_POWEROFF; 665 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 666 } 667 break; 668 case SDL_MOUSEMOTION: 669 idle = 0; 670 handle_mousemotion(ev); 671 break; 672 case SDL_MOUSEBUTTONDOWN: 673 case SDL_MOUSEBUTTONUP: 674 idle = 0; 675 handle_mousebutton(ev); 676 break; 677 case SDL_MOUSEWHEEL: 678 idle = 0; 679 handle_mousewheel(ev); 680 break; 681 case SDL_WINDOWEVENT: 682 handle_windowevent(ev); 683 break; 684 default: 685 break; 686 } 687 } 688 689 if (idle) { 690 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 691 scon->idle_counter++; 692 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 693 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 694 } 695 } 696 } else { 697 scon->idle_counter = 0; 698 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 699 } 700 } 701 702 static void sdl_mouse_warp(DisplayChangeListener *dcl, 703 int x, int y, int on) 704 { 705 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 706 707 if (!qemu_console_is_graphic(scon->dcl.con)) { 708 return; 709 } 710 711 if (on) { 712 if (!guest_cursor) { 713 sdl_show_cursor(scon); 714 } 715 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 716 SDL_SetCursor(guest_sprite); 717 if (!qemu_input_is_absolute() && !absolute_enabled) { 718 SDL_WarpMouseInWindow(scon->real_window, x, y); 719 } 720 } 721 } else if (gui_grab) { 722 sdl_hide_cursor(scon); 723 } 724 guest_cursor = on; 725 guest_x = x, guest_y = y; 726 } 727 728 static void sdl_mouse_define(DisplayChangeListener *dcl, 729 QEMUCursor *c) 730 { 731 732 if (guest_sprite) { 733 SDL_FreeCursor(guest_sprite); 734 } 735 736 if (guest_sprite_surface) { 737 SDL_FreeSurface(guest_sprite_surface); 738 } 739 740 guest_sprite_surface = 741 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 742 0xff0000, 0x00ff00, 0xff, 0xff000000); 743 744 if (!guest_sprite_surface) { 745 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 746 return; 747 } 748 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 749 c->hot_x, c->hot_y); 750 if (!guest_sprite) { 751 fprintf(stderr, "Failed to make color cursor from %p\n", c); 752 return; 753 } 754 if (guest_cursor && 755 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 756 SDL_SetCursor(guest_sprite); 757 } 758 } 759 760 static void sdl_cleanup(void) 761 { 762 if (guest_sprite) { 763 SDL_FreeCursor(guest_sprite); 764 } 765 SDL_QuitSubSystem(SDL_INIT_VIDEO); 766 } 767 768 static const DisplayChangeListenerOps dcl_2d_ops = { 769 .dpy_name = "sdl2-2d", 770 .dpy_gfx_update = sdl2_2d_update, 771 .dpy_gfx_switch = sdl2_2d_switch, 772 .dpy_gfx_check_format = sdl2_2d_check_format, 773 .dpy_refresh = sdl2_2d_refresh, 774 .dpy_mouse_set = sdl_mouse_warp, 775 .dpy_cursor_define = sdl_mouse_define, 776 }; 777 778 #ifdef CONFIG_OPENGL 779 static const DisplayChangeListenerOps dcl_gl_ops = { 780 .dpy_name = "sdl2-gl", 781 .dpy_gfx_update = sdl2_gl_update, 782 .dpy_gfx_switch = sdl2_gl_switch, 783 .dpy_gfx_check_format = console_gl_check_format, 784 .dpy_refresh = sdl2_gl_refresh, 785 .dpy_mouse_set = sdl_mouse_warp, 786 .dpy_cursor_define = sdl_mouse_define, 787 788 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 789 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 790 .dpy_gl_update = sdl2_gl_scanout_flush, 791 }; 792 793 static bool 794 sdl2_gl_is_compatible_dcl(DisplayGLCtx *dgc, 795 DisplayChangeListener *dcl) 796 { 797 return dcl->ops == &dcl_gl_ops; 798 } 799 800 static const DisplayGLCtxOps gl_ctx_ops = { 801 .dpy_gl_ctx_is_compatible_dcl = sdl2_gl_is_compatible_dcl, 802 .dpy_gl_ctx_create = sdl2_gl_create_context, 803 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 804 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 805 }; 806 #endif 807 808 static void sdl2_display_early_init(DisplayOptions *o) 809 { 810 assert(o->type == DISPLAY_TYPE_SDL); 811 if (o->has_gl && o->gl) { 812 #ifdef CONFIG_OPENGL 813 display_opengl = 1; 814 #endif 815 } 816 } 817 818 static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) 819 { 820 uint8_t data = 0; 821 int i; 822 SDL_SysWMinfo info; 823 SDL_Surface *icon = NULL; 824 char *dir; 825 826 assert(o->type == DISPLAY_TYPE_SDL); 827 828 #ifdef __linux__ 829 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 830 * accessible $DISPLAY to open X11 window. This is often the case 831 * when qemu is run using sudo. But in this case, and when actually 832 * run in X11 environment, SDL fights with X11 for the video card, 833 * making current display unavailable, often until reboot. 834 * So make x11 the default SDL video driver if this variable is unset. 835 * This is a bit hackish but saves us from bigger problem. 836 * Maybe it's a good idea to fix this in SDL instead. 837 */ 838 if (!g_setenv("SDL_VIDEODRIVER", "x11", 0)) { 839 fprintf(stderr, "Could not set SDL_VIDEODRIVER environment variable\n"); 840 exit(1); 841 } 842 #endif 843 844 if (SDL_Init(SDL_INIT_VIDEO)) { 845 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 846 SDL_GetError()); 847 exit(1); 848 } 849 #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */ 850 SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0"); 851 #endif 852 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 853 memset(&info, 0, sizeof(info)); 854 SDL_VERSION(&info.version); 855 856 gui_fullscreen = o->has_full_screen && o->full_screen; 857 858 if (o->u.sdl.has_grab_mod) { 859 if (o->u.sdl.grab_mod == HOT_KEY_MOD_LSHIFT_LCTRL_LALT) { 860 alt_grab = true; 861 } else if (o->u.sdl.grab_mod == HOT_KEY_MOD_RCTRL) { 862 ctrl_grab = true; 863 } 864 } 865 866 for (i = 0;; i++) { 867 QemuConsole *con = qemu_console_lookup_by_index(i); 868 if (!con) { 869 break; 870 } 871 } 872 sdl2_num_outputs = i; 873 if (sdl2_num_outputs == 0) { 874 return; 875 } 876 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 877 for (i = 0; i < sdl2_num_outputs; i++) { 878 QemuConsole *con = qemu_console_lookup_by_index(i); 879 assert(con != NULL); 880 if (!qemu_console_is_graphic(con) && 881 qemu_console_get_index(con) != 0) { 882 sdl2_console[i].hidden = true; 883 } 884 sdl2_console[i].idx = i; 885 sdl2_console[i].opts = o; 886 #ifdef CONFIG_OPENGL 887 sdl2_console[i].opengl = display_opengl; 888 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 889 sdl2_console[i].dgc.ops = display_opengl ? &gl_ctx_ops : NULL; 890 #else 891 sdl2_console[i].opengl = 0; 892 sdl2_console[i].dcl.ops = &dcl_2d_ops; 893 #endif 894 sdl2_console[i].dcl.con = con; 895 sdl2_console[i].kbd = qkbd_state_init(con); 896 if (display_opengl) { 897 qemu_console_set_display_gl_ctx(con, &sdl2_console[i].dgc); 898 } 899 register_displaychangelistener(&sdl2_console[i].dcl); 900 901 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 902 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 903 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 904 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 905 #elif defined(SDL_VIDEO_DRIVER_X11) 906 qemu_console_set_window_id(con, info.info.x11.window); 907 #endif 908 } 909 #endif 910 } 911 912 #ifdef CONFIG_SDL_IMAGE 913 dir = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/128x128/apps/qemu.png"); 914 icon = IMG_Load(dir); 915 #else 916 /* Load a 32x32x4 image. White pixels are transparent. */ 917 dir = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/32x32/apps/qemu.bmp"); 918 icon = SDL_LoadBMP(dir); 919 if (icon) { 920 uint32_t colorkey = SDL_MapRGB(icon->format, 255, 255, 255); 921 SDL_SetColorKey(icon, SDL_TRUE, colorkey); 922 } 923 #endif 924 g_free(dir); 925 if (icon) { 926 SDL_SetWindowIcon(sdl2_console[0].real_window, icon); 927 } 928 929 mouse_mode_notifier.notify = sdl_mouse_mode_change; 930 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 931 932 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 933 sdl_cursor_normal = SDL_GetCursor(); 934 935 if (gui_fullscreen) { 936 sdl_grab_start(&sdl2_console[0]); 937 } 938 939 atexit(sdl_cleanup); 940 } 941 942 static QemuDisplay qemu_display_sdl2 = { 943 .type = DISPLAY_TYPE_SDL, 944 .early_init = sdl2_display_early_init, 945 .init = sdl2_display_init, 946 }; 947 948 static void register_sdl1(void) 949 { 950 qemu_display_register(&qemu_display_sdl2); 951 } 952 953 type_init(register_sdl1); 954 955 #ifdef CONFIG_OPENGL 956 module_dep("ui-opengl"); 957 #endif 958
