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 #ifdef CONFIG_OPENGL 88 if (scon->opengl) { 89 flags |= SDL_WINDOW_OPENGL; 90 } 91 #endif 92 93 scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, 94 SDL_WINDOWPOS_UNDEFINED, 95 surface_width(scon->surface), 96 surface_height(scon->surface), 97 flags); 98 scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0); 99 if (scon->opengl) { 100 scon->winctx = SDL_GL_GetCurrentContext(); 101 } 102 sdl_update_caption(scon); 103 } 104 105 void sdl2_window_destroy(struct sdl2_console *scon) 106 { 107 if (!scon->real_window) { 108 return; 109 } 110 111 SDL_DestroyRenderer(scon->real_renderer); 112 scon->real_renderer = NULL; 113 SDL_DestroyWindow(scon->real_window); 114 scon->real_window = NULL; 115 } 116 117 void sdl2_window_resize(struct sdl2_console *scon) 118 { 119 if (!scon->real_window) { 120 return; 121 } 122 123 SDL_SetWindowSize(scon->real_window, 124 surface_width(scon->surface), 125 surface_height(scon->surface)); 126 } 127 128 static void sdl2_redraw(struct sdl2_console *scon) 129 { 130 if (scon->opengl) { 131 #ifdef CONFIG_OPENGL 132 sdl2_gl_redraw(scon); 133 #endif 134 } else { 135 sdl2_2d_redraw(scon); 136 } 137 } 138 139 static void sdl_update_caption(struct sdl2_console *scon) 140 { 141 char win_title[1024]; 142 char icon_title[1024]; 143 const char *status = ""; 144 145 if (!runstate_is_running()) { 146 status = " [Stopped]"; 147 } else if (gui_grab) { 148 if (alt_grab) { 149 status = " - Press Ctrl-Alt-Shift-G to exit grab"; 150 } else if (ctrl_grab) { 151 status = " - Press Right-Ctrl-G to exit grab"; 152 } else { 153 status = " - Press Ctrl-Alt-G to exit grab"; 154 } 155 } 156 157 if (qemu_name) { 158 snprintf(win_title, sizeof(win_title), "QEMU (%s-%d)%s", qemu_name, 159 scon->idx, status); 160 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name); 161 } else { 162 snprintf(win_title, sizeof(win_title), "QEMU%s", status); 163 snprintf(icon_title, sizeof(icon_title), "QEMU"); 164 } 165 166 if (scon->real_window) { 167 SDL_SetWindowTitle(scon->real_window, win_title); 168 } 169 } 170 171 static void sdl_hide_cursor(struct sdl2_console *scon) 172 { 173 if (scon->opts->has_show_cursor && scon->opts->show_cursor) { 174 return; 175 } 176 177 SDL_ShowCursor(SDL_DISABLE); 178 SDL_SetCursor(sdl_cursor_hidden); 179 180 if (!qemu_input_is_absolute()) { 181 SDL_SetRelativeMouseMode(SDL_TRUE); 182 } 183 } 184 185 static void sdl_show_cursor(struct sdl2_console *scon) 186 { 187 if (scon->opts->has_show_cursor && scon->opts->show_cursor) { 188 return; 189 } 190 191 if (!qemu_input_is_absolute()) { 192 SDL_SetRelativeMouseMode(SDL_FALSE); 193 } 194 195 if (guest_cursor && 196 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 197 SDL_SetCursor(guest_sprite); 198 } else { 199 SDL_SetCursor(sdl_cursor_normal); 200 } 201 202 SDL_ShowCursor(SDL_ENABLE); 203 } 204 205 static void sdl_grab_start(struct sdl2_console *scon) 206 { 207 QemuConsole *con = scon ? scon->dcl.con : NULL; 208 209 if (!con || !qemu_console_is_graphic(con)) { 210 return; 211 } 212 /* 213 * If the application is not active, do not try to enter grab state. This 214 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the 215 * application (SDL bug). 216 */ 217 if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) { 218 return; 219 } 220 if (guest_cursor) { 221 SDL_SetCursor(guest_sprite); 222 if (!qemu_input_is_absolute() && !absolute_enabled) { 223 SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y); 224 } 225 } else { 226 sdl_hide_cursor(scon); 227 } 228 SDL_SetWindowGrab(scon->real_window, SDL_TRUE); 229 gui_grab = 1; 230 win32_kbd_set_grab(true); 231 sdl_update_caption(scon); 232 } 233 234 static void sdl_grab_end(struct sdl2_console *scon) 235 { 236 SDL_SetWindowGrab(scon->real_window, SDL_FALSE); 237 gui_grab = 0; 238 win32_kbd_set_grab(false); 239 sdl_show_cursor(scon); 240 sdl_update_caption(scon); 241 } 242 243 static void absolute_mouse_grab(struct sdl2_console *scon) 244 { 245 int mouse_x, mouse_y; 246 int scr_w, scr_h; 247 SDL_GetMouseState(&mouse_x, &mouse_y); 248 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 249 if (mouse_x > 0 && mouse_x < scr_w - 1 && 250 mouse_y > 0 && mouse_y < scr_h - 1) { 251 sdl_grab_start(scon); 252 } 253 } 254 255 static void sdl_mouse_mode_change(Notifier *notify, void *data) 256 { 257 if (qemu_input_is_absolute()) { 258 if (!absolute_enabled) { 259 absolute_enabled = 1; 260 SDL_SetRelativeMouseMode(SDL_FALSE); 261 absolute_mouse_grab(&sdl2_console[0]); 262 } 263 } else if (absolute_enabled) { 264 if (!gui_fullscreen) { 265 sdl_grab_end(&sdl2_console[0]); 266 } 267 absolute_enabled = 0; 268 } 269 } 270 271 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy, 272 int x, int y, int state) 273 { 274 static uint32_t bmap[INPUT_BUTTON__MAX] = { 275 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT), 276 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE), 277 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT), 278 }; 279 static uint32_t prev_state; 280 281 if (prev_state != state) { 282 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); 283 prev_state = state; 284 } 285 286 if (qemu_input_is_absolute()) { 287 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, 288 x, 0, surface_width(scon->surface)); 289 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, 290 y, 0, surface_height(scon->surface)); 291 } else { 292 if (guest_cursor) { 293 x -= guest_x; 294 y -= guest_y; 295 guest_x += x; 296 guest_y += y; 297 dx = x; 298 dy = y; 299 } 300 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 301 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 302 } 303 qemu_input_event_sync(); 304 } 305 306 static void toggle_full_screen(struct sdl2_console *scon) 307 { 308 gui_fullscreen = !gui_fullscreen; 309 if (gui_fullscreen) { 310 SDL_SetWindowFullscreen(scon->real_window, 311 SDL_WINDOW_FULLSCREEN_DESKTOP); 312 gui_saved_grab = gui_grab; 313 sdl_grab_start(scon); 314 } else { 315 if (!gui_saved_grab) { 316 sdl_grab_end(scon); 317 } 318 SDL_SetWindowFullscreen(scon->real_window, 0); 319 } 320 sdl2_redraw(scon); 321 } 322 323 static int get_mod_state(void) 324 { 325 SDL_Keymod mod = SDL_GetModState(); 326 327 if (alt_grab) { 328 return (mod & (gui_grab_code | KMOD_LSHIFT)) == 329 (gui_grab_code | KMOD_LSHIFT); 330 } else if (ctrl_grab) { 331 return (mod & KMOD_RCTRL) == KMOD_RCTRL; 332 } else { 333 return (mod & gui_grab_code) == gui_grab_code; 334 } 335 } 336 337 static void *sdl2_win32_get_hwnd(struct sdl2_console *scon) 338 { 339 #ifdef CONFIG_WIN32 340 SDL_SysWMinfo info; 341 342 SDL_VERSION(&info.version); 343 if (SDL_GetWindowWMInfo(scon->real_window, &info)) { 344 return info.info.win.window; 345 } 346 #endif 347 return NULL; 348 } 349 350 static void handle_keydown(SDL_Event *ev) 351 { 352 int win; 353 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 354 int gui_key_modifier_pressed = get_mod_state(); 355 int gui_keysym = 0; 356 357 if (!scon) { 358 return; 359 } 360 361 if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) { 362 switch (ev->key.keysym.scancode) { 363 case SDL_SCANCODE_2: 364 case SDL_SCANCODE_3: 365 case SDL_SCANCODE_4: 366 case SDL_SCANCODE_5: 367 case SDL_SCANCODE_6: 368 case SDL_SCANCODE_7: 369 case SDL_SCANCODE_8: 370 case SDL_SCANCODE_9: 371 if (gui_grab) { 372 sdl_grab_end(scon); 373 } 374 375 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 376 if (win < sdl2_num_outputs) { 377 sdl2_console[win].hidden = !sdl2_console[win].hidden; 378 if (sdl2_console[win].real_window) { 379 if (sdl2_console[win].hidden) { 380 SDL_HideWindow(sdl2_console[win].real_window); 381 } else { 382 SDL_ShowWindow(sdl2_console[win].real_window); 383 } 384 } 385 gui_keysym = 1; 386 } 387 break; 388 case SDL_SCANCODE_F: 389 toggle_full_screen(scon); 390 gui_keysym = 1; 391 break; 392 case SDL_SCANCODE_G: 393 gui_keysym = 1; 394 if (!gui_grab) { 395 sdl_grab_start(scon); 396 } else if (!gui_fullscreen) { 397 sdl_grab_end(scon); 398 } 399 break; 400 case SDL_SCANCODE_U: 401 sdl2_window_resize(scon); 402 if (!scon->opengl) { 403 /* re-create scon->texture */ 404 sdl2_2d_switch(&scon->dcl, scon->surface); 405 } 406 gui_keysym = 1; 407 break; 408 #if 0 409 case SDL_SCANCODE_KP_PLUS: 410 case SDL_SCANCODE_KP_MINUS: 411 if (!gui_fullscreen) { 412 int scr_w, scr_h; 413 int width, height; 414 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 415 416 width = MAX(scr_w + (ev->key.keysym.scancode == 417 SDL_SCANCODE_KP_PLUS ? 50 : -50), 418 160); 419 height = (surface_height(scon->surface) * width) / 420 surface_width(scon->surface); 421 fprintf(stderr, "%s: scale to %dx%d\n", 422 __func__, width, height); 423 sdl_scale(scon, width, height); 424 sdl2_redraw(scon); 425 gui_keysym = 1; 426 } 427 #endif 428 default: 429 break; 430 } 431 } 432 if (!gui_keysym) { 433 sdl2_process_key(scon, &ev->key); 434 } 435 } 436 437 static void handle_keyup(SDL_Event *ev) 438 { 439 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 440 441 if (!scon) { 442 return; 443 } 444 445 scon->ignore_hotkeys = false; 446 sdl2_process_key(scon, &ev->key); 447 } 448 449 static void handle_textinput(SDL_Event *ev) 450 { 451 struct sdl2_console *scon = get_scon_from_window(ev->text.windowID); 452 QemuConsole *con = scon ? scon->dcl.con : NULL; 453 454 if (!con) { 455 return; 456 } 457 458 if (qemu_console_is_graphic(con)) { 459 return; 460 } 461 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 462 } 463 464 static void handle_mousemotion(SDL_Event *ev) 465 { 466 int max_x, max_y; 467 struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID); 468 469 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 470 return; 471 } 472 473 if (qemu_input_is_absolute() || absolute_enabled) { 474 int scr_w, scr_h; 475 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 476 max_x = scr_w - 1; 477 max_y = scr_h - 1; 478 if (gui_grab && !gui_fullscreen 479 && (ev->motion.x == 0 || ev->motion.y == 0 || 480 ev->motion.x == max_x || ev->motion.y == max_y)) { 481 sdl_grab_end(scon); 482 } 483 if (!gui_grab && 484 (ev->motion.x > 0 && ev->motion.x < max_x && 485 ev->motion.y > 0 && ev->motion.y < max_y)) { 486 sdl_grab_start(scon); 487 } 488 } 489 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 490 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 491 ev->motion.x, ev->motion.y, ev->motion.state); 492 } 493 } 494 495 static void handle_mousebutton(SDL_Event *ev) 496 { 497 int buttonstate = SDL_GetMouseState(NULL, NULL); 498 SDL_MouseButtonEvent *bev; 499 struct sdl2_console *scon = get_scon_from_window(ev->button.windowID); 500 501 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 502 return; 503 } 504 505 bev = &ev->button; 506 if (!gui_grab && !qemu_input_is_absolute()) { 507 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 508 /* start grabbing all events */ 509 sdl_grab_start(scon); 510 } 511 } else { 512 if (ev->type == SDL_MOUSEBUTTONDOWN) { 513 buttonstate |= SDL_BUTTON(bev->button); 514 } else { 515 buttonstate &= ~SDL_BUTTON(bev->button); 516 } 517 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 518 } 519 } 520 521 static void handle_mousewheel(SDL_Event *ev) 522 { 523 struct sdl2_console *scon = get_scon_from_window(ev->wheel.windowID); 524 SDL_MouseWheelEvent *wev = &ev->wheel; 525 InputButton btn; 526 527 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 528 return; 529 } 530 531 if (wev->y > 0) { 532 btn = INPUT_BUTTON_WHEEL_UP; 533 } else if (wev->y < 0) { 534 btn = INPUT_BUTTON_WHEEL_DOWN; 535 } else { 536 return; 537 } 538 539 qemu_input_queue_btn(scon->dcl.con, btn, true); 540 qemu_input_event_sync(); 541 qemu_input_queue_btn(scon->dcl.con, btn, false); 542 qemu_input_event_sync(); 543 } 544 545 static void handle_windowevent(SDL_Event *ev) 546 { 547 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 548 bool allow_close = true; 549 550 if (!scon) { 551 return; 552 } 553 554 switch (ev->window.event) { 555 case SDL_WINDOWEVENT_RESIZED: 556 { 557 QemuUIInfo info; 558 memset(&info, 0, sizeof(info)); 559 info.width = ev->window.data1; 560 info.height = ev->window.data2; 561 dpy_set_ui_info(scon->dcl.con, &info); 562 } 563 sdl2_redraw(scon); 564 break; 565 case SDL_WINDOWEVENT_EXPOSED: 566 sdl2_redraw(scon); 567 break; 568 case SDL_WINDOWEVENT_FOCUS_GAINED: 569 win32_kbd_set_grab(gui_grab); 570 if (qemu_console_is_graphic(scon->dcl.con)) { 571 win32_kbd_set_window(sdl2_win32_get_hwnd(scon)); 572 } 573 /* fall through */ 574 case SDL_WINDOWEVENT_ENTER: 575 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 576 absolute_mouse_grab(scon); 577 } 578 /* If a new console window opened using a hotkey receives the 579 * focus, SDL sends another KEYDOWN event to the new window, 580 * closing the console window immediately after. 581 * 582 * Work around this by ignoring further hotkey events until a 583 * key is released. 584 */ 585 scon->ignore_hotkeys = get_mod_state(); 586 break; 587 case SDL_WINDOWEVENT_FOCUS_LOST: 588 if (qemu_console_is_graphic(scon->dcl.con)) { 589 win32_kbd_set_window(NULL); 590 } 591 if (gui_grab && !gui_fullscreen) { 592 sdl_grab_end(scon); 593 } 594 break; 595 case SDL_WINDOWEVENT_RESTORED: 596 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 597 break; 598 case SDL_WINDOWEVENT_MINIMIZED: 599 update_displaychangelistener(&scon->dcl, 500); 600 break; 601 case SDL_WINDOWEVENT_CLOSE: 602 if (qemu_console_is_graphic(scon->dcl.con)) { 603 if (scon->opts->has_window_close && !scon->opts->window_close) { 604 allow_close = false; 605 } 606 if (allow_close) { 607 no_shutdown = 0; 608 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 609 } 610 } else { 611 SDL_HideWindow(scon->real_window); 612 scon->hidden = true; 613 } 614 break; 615 case SDL_WINDOWEVENT_SHOWN: 616 scon->hidden = false; 617 break; 618 case SDL_WINDOWEVENT_HIDDEN: 619 scon->hidden = true; 620 break; 621 } 622 } 623 624 void sdl2_poll_events(struct sdl2_console *scon) 625 { 626 SDL_Event ev1, *ev = &ev1; 627 bool allow_close = true; 628 int idle = 1; 629 630 if (scon->last_vm_running != runstate_is_running()) { 631 scon->last_vm_running = runstate_is_running(); 632 sdl_update_caption(scon); 633 } 634 635 while (SDL_PollEvent(ev)) { 636 switch (ev->type) { 637 case SDL_KEYDOWN: 638 idle = 0; 639 handle_keydown(ev); 640 break; 641 case SDL_KEYUP: 642 idle = 0; 643 handle_keyup(ev); 644 break; 645 case SDL_TEXTINPUT: 646 idle = 0; 647 handle_textinput(ev); 648 break; 649 case SDL_QUIT: 650 if (scon->opts->has_window_close && !scon->opts->window_close) { 651 allow_close = false; 652 } 653 if (allow_close) { 654 no_shutdown = 0; 655 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 656 } 657 break; 658 case SDL_MOUSEMOTION: 659 idle = 0; 660 handle_mousemotion(ev); 661 break; 662 case SDL_MOUSEBUTTONDOWN: 663 case SDL_MOUSEBUTTONUP: 664 idle = 0; 665 handle_mousebutton(ev); 666 break; 667 case SDL_MOUSEWHEEL: 668 idle = 0; 669 handle_mousewheel(ev); 670 break; 671 case SDL_WINDOWEVENT: 672 handle_windowevent(ev); 673 break; 674 default: 675 break; 676 } 677 } 678 679 if (idle) { 680 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 681 scon->idle_counter++; 682 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 683 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 684 } 685 } 686 } else { 687 scon->idle_counter = 0; 688 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 689 } 690 } 691 692 static void sdl_mouse_warp(DisplayChangeListener *dcl, 693 int x, int y, int on) 694 { 695 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 696 697 if (!qemu_console_is_graphic(scon->dcl.con)) { 698 return; 699 } 700 701 if (on) { 702 if (!guest_cursor) { 703 sdl_show_cursor(scon); 704 } 705 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 706 SDL_SetCursor(guest_sprite); 707 if (!qemu_input_is_absolute() && !absolute_enabled) { 708 SDL_WarpMouseInWindow(scon->real_window, x, y); 709 } 710 } 711 } else if (gui_grab) { 712 sdl_hide_cursor(scon); 713 } 714 guest_cursor = on; 715 guest_x = x, guest_y = y; 716 } 717 718 static void sdl_mouse_define(DisplayChangeListener *dcl, 719 QEMUCursor *c) 720 { 721 722 if (guest_sprite) { 723 SDL_FreeCursor(guest_sprite); 724 } 725 726 if (guest_sprite_surface) { 727 SDL_FreeSurface(guest_sprite_surface); 728 } 729 730 guest_sprite_surface = 731 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 732 0xff0000, 0x00ff00, 0xff, 0xff000000); 733 734 if (!guest_sprite_surface) { 735 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 736 return; 737 } 738 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 739 c->hot_x, c->hot_y); 740 if (!guest_sprite) { 741 fprintf(stderr, "Failed to make color cursor from %p\n", c); 742 return; 743 } 744 if (guest_cursor && 745 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 746 SDL_SetCursor(guest_sprite); 747 } 748 } 749 750 static void sdl_cleanup(void) 751 { 752 if (guest_sprite) { 753 SDL_FreeCursor(guest_sprite); 754 } 755 SDL_QuitSubSystem(SDL_INIT_VIDEO); 756 } 757 758 static const DisplayChangeListenerOps dcl_2d_ops = { 759 .dpy_name = "sdl2-2d", 760 .dpy_gfx_update = sdl2_2d_update, 761 .dpy_gfx_switch = sdl2_2d_switch, 762 .dpy_gfx_check_format = sdl2_2d_check_format, 763 .dpy_refresh = sdl2_2d_refresh, 764 .dpy_mouse_set = sdl_mouse_warp, 765 .dpy_cursor_define = sdl_mouse_define, 766 }; 767 768 #ifdef CONFIG_OPENGL 769 static const DisplayChangeListenerOps dcl_gl_ops = { 770 .dpy_name = "sdl2-gl", 771 .dpy_gfx_update = sdl2_gl_update, 772 .dpy_gfx_switch = sdl2_gl_switch, 773 .dpy_gfx_check_format = console_gl_check_format, 774 .dpy_refresh = sdl2_gl_refresh, 775 .dpy_mouse_set = sdl_mouse_warp, 776 .dpy_cursor_define = sdl_mouse_define, 777 778 .dpy_gl_ctx_create = sdl2_gl_create_context, 779 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 780 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 781 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, 782 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 783 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 784 .dpy_gl_update = sdl2_gl_scanout_flush, 785 }; 786 #endif 787 788 static void sdl2_display_early_init(DisplayOptions *o) 789 { 790 assert(o->type == DISPLAY_TYPE_SDL); 791 if (o->has_gl && o->gl) { 792 #ifdef CONFIG_OPENGL 793 display_opengl = 1; 794 #endif 795 } 796 } 797 798 static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) 799 { 800 uint8_t data = 0; 801 int i; 802 SDL_SysWMinfo info; 803 SDL_Surface *icon = NULL; 804 char *dir; 805 806 assert(o->type == DISPLAY_TYPE_SDL); 807 808 #ifdef __linux__ 809 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 810 * accessible $DISPLAY to open X11 window. This is often the case 811 * when qemu is run using sudo. But in this case, and when actually 812 * run in X11 environment, SDL fights with X11 for the video card, 813 * making current display unavailable, often until reboot. 814 * So make x11 the default SDL video driver if this variable is unset. 815 * This is a bit hackish but saves us from bigger problem. 816 * Maybe it's a good idea to fix this in SDL instead. 817 */ 818 g_setenv("SDL_VIDEODRIVER", "x11", 0); 819 #endif 820 821 if (SDL_Init(SDL_INIT_VIDEO)) { 822 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 823 SDL_GetError()); 824 exit(1); 825 } 826 #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */ 827 SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0"); 828 #endif 829 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 830 memset(&info, 0, sizeof(info)); 831 SDL_VERSION(&info.version); 832 833 gui_fullscreen = o->has_full_screen && o->full_screen; 834 835 for (i = 0;; i++) { 836 QemuConsole *con = qemu_console_lookup_by_index(i); 837 if (!con) { 838 break; 839 } 840 } 841 sdl2_num_outputs = i; 842 if (sdl2_num_outputs == 0) { 843 return; 844 } 845 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 846 for (i = 0; i < sdl2_num_outputs; i++) { 847 QemuConsole *con = qemu_console_lookup_by_index(i); 848 assert(con != NULL); 849 if (!qemu_console_is_graphic(con) && 850 qemu_console_get_index(con) != 0) { 851 sdl2_console[i].hidden = true; 852 } 853 sdl2_console[i].idx = i; 854 sdl2_console[i].opts = o; 855 #ifdef CONFIG_OPENGL 856 sdl2_console[i].opengl = display_opengl; 857 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 858 #else 859 sdl2_console[i].opengl = 0; 860 sdl2_console[i].dcl.ops = &dcl_2d_ops; 861 #endif 862 sdl2_console[i].dcl.con = con; 863 sdl2_console[i].kbd = qkbd_state_init(con); 864 register_displaychangelistener(&sdl2_console[i].dcl); 865 866 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 867 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 868 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 869 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 870 #elif defined(SDL_VIDEO_DRIVER_X11) 871 qemu_console_set_window_id(con, info.info.x11.window); 872 #endif 873 } 874 #endif 875 } 876 877 #ifdef CONFIG_SDL_IMAGE 878 dir = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/128x128/apps/qemu.png"); 879 icon = IMG_Load(dir); 880 #else 881 /* Load a 32x32x4 image. White pixels are transparent. */ 882 dir = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/32x32/apps/qemu.bmp"); 883 icon = SDL_LoadBMP(dir); 884 if (icon) { 885 uint32_t colorkey = SDL_MapRGB(icon->format, 255, 255, 255); 886 SDL_SetColorKey(icon, SDL_TRUE, colorkey); 887 } 888 #endif 889 g_free(dir); 890 if (icon) { 891 SDL_SetWindowIcon(sdl2_console[0].real_window, icon); 892 } 893 894 mouse_mode_notifier.notify = sdl_mouse_mode_change; 895 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 896 897 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 898 sdl_cursor_normal = SDL_GetCursor(); 899 900 if (gui_fullscreen) { 901 sdl_grab_start(&sdl2_console[0]); 902 } 903 904 atexit(sdl_cleanup); 905 } 906 907 static QemuDisplay qemu_display_sdl2 = { 908 .type = DISPLAY_TYPE_SDL, 909 .early_init = sdl2_display_early_init, 910 .init = sdl2_display_init, 911 }; 912 913 static void register_sdl1(void) 914 { 915 qemu_display_register(&qemu_display_sdl2); 916 } 917 918 type_init(register_sdl1); 919
