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 "ui/console.h" 29 #include "ui/input.h" 30 #include "ui/sdl2.h" 31 #include "sysemu/runstate.h" 32 #include "sysemu/sysemu.h" 33 34 static int sdl2_num_outputs; 35 static struct sdl2_console *sdl2_console; 36 37 static SDL_Surface *guest_sprite_surface; 38 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ 39 40 static int gui_saved_grab; 41 static int gui_fullscreen; 42 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL; 43 static SDL_Cursor *sdl_cursor_normal; 44 static SDL_Cursor *sdl_cursor_hidden; 45 static int absolute_enabled; 46 static int guest_cursor; 47 static int guest_x, guest_y; 48 static SDL_Cursor *guest_sprite; 49 static Notifier mouse_mode_notifier; 50 51 #define SDL2_REFRESH_INTERVAL_BUSY 10 52 #define SDL2_MAX_IDLE_COUNT (2 * GUI_REFRESH_INTERVAL_DEFAULT \ 53 / SDL2_REFRESH_INTERVAL_BUSY + 1) 54 55 static void sdl_update_caption(struct sdl2_console *scon); 56 57 static struct sdl2_console *get_scon_from_window(uint32_t window_id) 58 { 59 int i; 60 for (i = 0; i < sdl2_num_outputs; i++) { 61 if (sdl2_console[i].real_window == SDL_GetWindowFromID(window_id)) { 62 return &sdl2_console[i]; 63 } 64 } 65 return NULL; 66 } 67 68 void sdl2_window_create(struct sdl2_console *scon) 69 { 70 int flags = 0; 71 72 if (!scon->surface) { 73 return; 74 } 75 assert(!scon->real_window); 76 77 if (gui_fullscreen) { 78 flags |= SDL_WINDOW_FULLSCREEN_DESKTOP; 79 } else { 80 flags |= SDL_WINDOW_RESIZABLE; 81 } 82 if (scon->hidden) { 83 flags |= SDL_WINDOW_HIDDEN; 84 } 85 86 scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, 87 SDL_WINDOWPOS_UNDEFINED, 88 surface_width(scon->surface), 89 surface_height(scon->surface), 90 flags); 91 scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0); 92 if (scon->opengl) { 93 scon->winctx = SDL_GL_GetCurrentContext(); 94 } 95 sdl_update_caption(scon); 96 } 97 98 void sdl2_window_destroy(struct sdl2_console *scon) 99 { 100 if (!scon->real_window) { 101 return; 102 } 103 104 SDL_DestroyRenderer(scon->real_renderer); 105 scon->real_renderer = NULL; 106 SDL_DestroyWindow(scon->real_window); 107 scon->real_window = NULL; 108 } 109 110 void sdl2_window_resize(struct sdl2_console *scon) 111 { 112 if (!scon->real_window) { 113 return; 114 } 115 116 SDL_SetWindowSize(scon->real_window, 117 surface_width(scon->surface), 118 surface_height(scon->surface)); 119 } 120 121 static void sdl2_redraw(struct sdl2_console *scon) 122 { 123 if (scon->opengl) { 124 #ifdef CONFIG_OPENGL 125 sdl2_gl_redraw(scon); 126 #endif 127 } else { 128 sdl2_2d_redraw(scon); 129 } 130 } 131 132 static void sdl_update_caption(struct sdl2_console *scon) 133 { 134 char win_title[1024]; 135 char icon_title[1024]; 136 const char *status = ""; 137 138 if (!runstate_is_running()) { 139 status = " [Stopped]"; 140 } else if (gui_grab) { 141 if (alt_grab) { 142 status = " - Press Ctrl-Alt-Shift-G to exit grab"; 143 } else if (ctrl_grab) { 144 status = " - Press Right-Ctrl-G to exit grab"; 145 } else { 146 status = " - Press Ctrl-Alt-G to exit grab"; 147 } 148 } 149 150 if (qemu_name) { 151 snprintf(win_title, sizeof(win_title), "QEMU (%s-%d)%s", qemu_name, 152 scon->idx, status); 153 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name); 154 } else { 155 snprintf(win_title, sizeof(win_title), "QEMU%s", status); 156 snprintf(icon_title, sizeof(icon_title), "QEMU"); 157 } 158 159 if (scon->real_window) { 160 SDL_SetWindowTitle(scon->real_window, win_title); 161 } 162 } 163 164 static void sdl_hide_cursor(void) 165 { 166 if (!cursor_hide) { 167 return; 168 } 169 170 SDL_ShowCursor(SDL_DISABLE); 171 SDL_SetCursor(sdl_cursor_hidden); 172 173 if (!qemu_input_is_absolute()) { 174 SDL_SetRelativeMouseMode(SDL_TRUE); 175 } 176 } 177 178 static void sdl_show_cursor(void) 179 { 180 if (!cursor_hide) { 181 return; 182 } 183 184 if (!qemu_input_is_absolute()) { 185 SDL_SetRelativeMouseMode(SDL_FALSE); 186 } 187 188 if (guest_cursor && 189 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 190 SDL_SetCursor(guest_sprite); 191 } else { 192 SDL_SetCursor(sdl_cursor_normal); 193 } 194 195 SDL_ShowCursor(SDL_ENABLE); 196 } 197 198 static void sdl_grab_start(struct sdl2_console *scon) 199 { 200 QemuConsole *con = scon ? scon->dcl.con : NULL; 201 202 if (!con || !qemu_console_is_graphic(con)) { 203 return; 204 } 205 /* 206 * If the application is not active, do not try to enter grab state. This 207 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the 208 * application (SDL bug). 209 */ 210 if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) { 211 return; 212 } 213 if (guest_cursor) { 214 SDL_SetCursor(guest_sprite); 215 if (!qemu_input_is_absolute() && !absolute_enabled) { 216 SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y); 217 } 218 } else { 219 sdl_hide_cursor(); 220 } 221 SDL_SetWindowGrab(scon->real_window, SDL_TRUE); 222 gui_grab = 1; 223 sdl_update_caption(scon); 224 } 225 226 static void sdl_grab_end(struct sdl2_console *scon) 227 { 228 SDL_SetWindowGrab(scon->real_window, SDL_FALSE); 229 gui_grab = 0; 230 sdl_show_cursor(); 231 sdl_update_caption(scon); 232 } 233 234 static void absolute_mouse_grab(struct sdl2_console *scon) 235 { 236 int mouse_x, mouse_y; 237 int scr_w, scr_h; 238 SDL_GetMouseState(&mouse_x, &mouse_y); 239 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 240 if (mouse_x > 0 && mouse_x < scr_w - 1 && 241 mouse_y > 0 && mouse_y < scr_h - 1) { 242 sdl_grab_start(scon); 243 } 244 } 245 246 static void sdl_mouse_mode_change(Notifier *notify, void *data) 247 { 248 if (qemu_input_is_absolute()) { 249 if (!absolute_enabled) { 250 absolute_enabled = 1; 251 SDL_SetRelativeMouseMode(SDL_FALSE); 252 absolute_mouse_grab(&sdl2_console[0]); 253 } 254 } else if (absolute_enabled) { 255 if (!gui_fullscreen) { 256 sdl_grab_end(&sdl2_console[0]); 257 } 258 absolute_enabled = 0; 259 } 260 } 261 262 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy, 263 int x, int y, int state) 264 { 265 static uint32_t bmap[INPUT_BUTTON__MAX] = { 266 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT), 267 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE), 268 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT), 269 }; 270 static uint32_t prev_state; 271 272 if (prev_state != state) { 273 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); 274 prev_state = state; 275 } 276 277 if (qemu_input_is_absolute()) { 278 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, 279 x, 0, surface_width(scon->surface)); 280 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, 281 y, 0, surface_height(scon->surface)); 282 } else { 283 if (guest_cursor) { 284 x -= guest_x; 285 y -= guest_y; 286 guest_x += x; 287 guest_y += y; 288 dx = x; 289 dy = y; 290 } 291 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 292 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 293 } 294 qemu_input_event_sync(); 295 } 296 297 static void toggle_full_screen(struct sdl2_console *scon) 298 { 299 gui_fullscreen = !gui_fullscreen; 300 if (gui_fullscreen) { 301 SDL_SetWindowFullscreen(scon->real_window, 302 SDL_WINDOW_FULLSCREEN_DESKTOP); 303 gui_saved_grab = gui_grab; 304 sdl_grab_start(scon); 305 } else { 306 if (!gui_saved_grab) { 307 sdl_grab_end(scon); 308 } 309 SDL_SetWindowFullscreen(scon->real_window, 0); 310 } 311 sdl2_redraw(scon); 312 } 313 314 static int get_mod_state(void) 315 { 316 SDL_Keymod mod = SDL_GetModState(); 317 318 if (alt_grab) { 319 return (mod & (gui_grab_code | KMOD_LSHIFT)) == 320 (gui_grab_code | KMOD_LSHIFT); 321 } else if (ctrl_grab) { 322 return (mod & KMOD_RCTRL) == KMOD_RCTRL; 323 } else { 324 return (mod & gui_grab_code) == gui_grab_code; 325 } 326 } 327 328 static void handle_keydown(SDL_Event *ev) 329 { 330 int win; 331 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 332 int gui_key_modifier_pressed = get_mod_state(); 333 int gui_keysym = 0; 334 335 if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) { 336 switch (ev->key.keysym.scancode) { 337 case SDL_SCANCODE_2: 338 case SDL_SCANCODE_3: 339 case SDL_SCANCODE_4: 340 case SDL_SCANCODE_5: 341 case SDL_SCANCODE_6: 342 case SDL_SCANCODE_7: 343 case SDL_SCANCODE_8: 344 case SDL_SCANCODE_9: 345 if (gui_grab) { 346 sdl_grab_end(scon); 347 } 348 349 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 350 if (win < sdl2_num_outputs) { 351 sdl2_console[win].hidden = !sdl2_console[win].hidden; 352 if (sdl2_console[win].real_window) { 353 if (sdl2_console[win].hidden) { 354 SDL_HideWindow(sdl2_console[win].real_window); 355 } else { 356 SDL_ShowWindow(sdl2_console[win].real_window); 357 } 358 } 359 gui_keysym = 1; 360 } 361 break; 362 case SDL_SCANCODE_F: 363 toggle_full_screen(scon); 364 gui_keysym = 1; 365 break; 366 case SDL_SCANCODE_G: 367 gui_keysym = 1; 368 if (!gui_grab) { 369 sdl_grab_start(scon); 370 } else if (!gui_fullscreen) { 371 sdl_grab_end(scon); 372 } 373 break; 374 case SDL_SCANCODE_U: 375 sdl2_window_resize(scon); 376 if (!scon->opengl) { 377 /* re-create scon->texture */ 378 sdl2_2d_switch(&scon->dcl, scon->surface); 379 } 380 gui_keysym = 1; 381 break; 382 #if 0 383 case SDL_SCANCODE_KP_PLUS: 384 case SDL_SCANCODE_KP_MINUS: 385 if (!gui_fullscreen) { 386 int scr_w, scr_h; 387 int width, height; 388 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 389 390 width = MAX(scr_w + (ev->key.keysym.scancode == 391 SDL_SCANCODE_KP_PLUS ? 50 : -50), 392 160); 393 height = (surface_height(scon->surface) * width) / 394 surface_width(scon->surface); 395 fprintf(stderr, "%s: scale to %dx%d\n", 396 __func__, width, height); 397 sdl_scale(scon, width, height); 398 sdl2_redraw(scon); 399 gui_keysym = 1; 400 } 401 #endif 402 default: 403 break; 404 } 405 } 406 if (!gui_keysym) { 407 sdl2_process_key(scon, &ev->key); 408 } 409 } 410 411 static void handle_keyup(SDL_Event *ev) 412 { 413 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 414 415 scon->ignore_hotkeys = false; 416 sdl2_process_key(scon, &ev->key); 417 } 418 419 static void handle_textinput(SDL_Event *ev) 420 { 421 struct sdl2_console *scon = get_scon_from_window(ev->text.windowID); 422 QemuConsole *con = scon ? scon->dcl.con : NULL; 423 424 if (qemu_console_is_graphic(con)) { 425 return; 426 } 427 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 428 } 429 430 static void handle_mousemotion(SDL_Event *ev) 431 { 432 int max_x, max_y; 433 struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID); 434 435 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 436 return; 437 } 438 439 if (qemu_input_is_absolute() || absolute_enabled) { 440 int scr_w, scr_h; 441 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 442 max_x = scr_w - 1; 443 max_y = scr_h - 1; 444 if (gui_grab && !gui_fullscreen 445 && (ev->motion.x == 0 || ev->motion.y == 0 || 446 ev->motion.x == max_x || ev->motion.y == max_y)) { 447 sdl_grab_end(scon); 448 } 449 if (!gui_grab && 450 (ev->motion.x > 0 && ev->motion.x < max_x && 451 ev->motion.y > 0 && ev->motion.y < max_y)) { 452 sdl_grab_start(scon); 453 } 454 } 455 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 456 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 457 ev->motion.x, ev->motion.y, ev->motion.state); 458 } 459 } 460 461 static void handle_mousebutton(SDL_Event *ev) 462 { 463 int buttonstate = SDL_GetMouseState(NULL, NULL); 464 SDL_MouseButtonEvent *bev; 465 struct sdl2_console *scon = get_scon_from_window(ev->button.windowID); 466 467 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 468 return; 469 } 470 471 bev = &ev->button; 472 if (!gui_grab && !qemu_input_is_absolute()) { 473 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 474 /* start grabbing all events */ 475 sdl_grab_start(scon); 476 } 477 } else { 478 if (ev->type == SDL_MOUSEBUTTONDOWN) { 479 buttonstate |= SDL_BUTTON(bev->button); 480 } else { 481 buttonstate &= ~SDL_BUTTON(bev->button); 482 } 483 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 484 } 485 } 486 487 static void handle_mousewheel(SDL_Event *ev) 488 { 489 struct sdl2_console *scon = get_scon_from_window(ev->wheel.windowID); 490 SDL_MouseWheelEvent *wev = &ev->wheel; 491 InputButton btn; 492 493 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 494 return; 495 } 496 497 if (wev->y > 0) { 498 btn = INPUT_BUTTON_WHEEL_UP; 499 } else if (wev->y < 0) { 500 btn = INPUT_BUTTON_WHEEL_DOWN; 501 } else { 502 return; 503 } 504 505 qemu_input_queue_btn(scon->dcl.con, btn, true); 506 qemu_input_event_sync(); 507 qemu_input_queue_btn(scon->dcl.con, btn, false); 508 qemu_input_event_sync(); 509 } 510 511 static void handle_windowevent(SDL_Event *ev) 512 { 513 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 514 bool allow_close = true; 515 516 if (!scon) { 517 return; 518 } 519 520 switch (ev->window.event) { 521 case SDL_WINDOWEVENT_RESIZED: 522 { 523 QemuUIInfo info; 524 memset(&info, 0, sizeof(info)); 525 info.width = ev->window.data1; 526 info.height = ev->window.data2; 527 dpy_set_ui_info(scon->dcl.con, &info); 528 } 529 sdl2_redraw(scon); 530 break; 531 case SDL_WINDOWEVENT_EXPOSED: 532 sdl2_redraw(scon); 533 break; 534 case SDL_WINDOWEVENT_FOCUS_GAINED: 535 case SDL_WINDOWEVENT_ENTER: 536 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 537 absolute_mouse_grab(scon); 538 } 539 /* If a new console window opened using a hotkey receives the 540 * focus, SDL sends another KEYDOWN event to the new window, 541 * closing the console window immediately after. 542 * 543 * Work around this by ignoring further hotkey events until a 544 * key is released. 545 */ 546 scon->ignore_hotkeys = get_mod_state(); 547 break; 548 case SDL_WINDOWEVENT_FOCUS_LOST: 549 if (gui_grab && !gui_fullscreen) { 550 sdl_grab_end(scon); 551 } 552 break; 553 case SDL_WINDOWEVENT_RESTORED: 554 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 555 break; 556 case SDL_WINDOWEVENT_MINIMIZED: 557 update_displaychangelistener(&scon->dcl, 500); 558 break; 559 case SDL_WINDOWEVENT_CLOSE: 560 if (qemu_console_is_graphic(scon->dcl.con)) { 561 if (scon->opts->has_window_close && !scon->opts->window_close) { 562 allow_close = false; 563 } 564 if (allow_close) { 565 no_shutdown = 0; 566 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 567 } 568 } else { 569 SDL_HideWindow(scon->real_window); 570 scon->hidden = true; 571 } 572 break; 573 case SDL_WINDOWEVENT_SHOWN: 574 scon->hidden = false; 575 break; 576 case SDL_WINDOWEVENT_HIDDEN: 577 scon->hidden = true; 578 break; 579 } 580 } 581 582 void sdl2_poll_events(struct sdl2_console *scon) 583 { 584 SDL_Event ev1, *ev = &ev1; 585 bool allow_close = true; 586 int idle = 1; 587 588 if (scon->last_vm_running != runstate_is_running()) { 589 scon->last_vm_running = runstate_is_running(); 590 sdl_update_caption(scon); 591 } 592 593 while (SDL_PollEvent(ev)) { 594 switch (ev->type) { 595 case SDL_KEYDOWN: 596 idle = 0; 597 handle_keydown(ev); 598 break; 599 case SDL_KEYUP: 600 idle = 0; 601 handle_keyup(ev); 602 break; 603 case SDL_TEXTINPUT: 604 idle = 0; 605 handle_textinput(ev); 606 break; 607 case SDL_QUIT: 608 if (scon->opts->has_window_close && !scon->opts->window_close) { 609 allow_close = false; 610 } 611 if (allow_close) { 612 no_shutdown = 0; 613 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 614 } 615 break; 616 case SDL_MOUSEMOTION: 617 idle = 0; 618 handle_mousemotion(ev); 619 break; 620 case SDL_MOUSEBUTTONDOWN: 621 case SDL_MOUSEBUTTONUP: 622 idle = 0; 623 handle_mousebutton(ev); 624 break; 625 case SDL_MOUSEWHEEL: 626 idle = 0; 627 handle_mousewheel(ev); 628 break; 629 case SDL_WINDOWEVENT: 630 handle_windowevent(ev); 631 break; 632 default: 633 break; 634 } 635 } 636 637 if (idle) { 638 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 639 scon->idle_counter++; 640 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 641 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 642 } 643 } 644 } else { 645 scon->idle_counter = 0; 646 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 647 } 648 } 649 650 static void sdl_mouse_warp(DisplayChangeListener *dcl, 651 int x, int y, int on) 652 { 653 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 654 655 if (!qemu_console_is_graphic(scon->dcl.con)) { 656 return; 657 } 658 659 if (on) { 660 if (!guest_cursor) { 661 sdl_show_cursor(); 662 } 663 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 664 SDL_SetCursor(guest_sprite); 665 if (!qemu_input_is_absolute() && !absolute_enabled) { 666 SDL_WarpMouseInWindow(scon->real_window, x, y); 667 } 668 } 669 } else if (gui_grab) { 670 sdl_hide_cursor(); 671 } 672 guest_cursor = on; 673 guest_x = x, guest_y = y; 674 } 675 676 static void sdl_mouse_define(DisplayChangeListener *dcl, 677 QEMUCursor *c) 678 { 679 680 if (guest_sprite) { 681 SDL_FreeCursor(guest_sprite); 682 } 683 684 if (guest_sprite_surface) { 685 SDL_FreeSurface(guest_sprite_surface); 686 } 687 688 guest_sprite_surface = 689 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 690 0xff0000, 0x00ff00, 0xff, 0xff000000); 691 692 if (!guest_sprite_surface) { 693 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 694 return; 695 } 696 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 697 c->hot_x, c->hot_y); 698 if (!guest_sprite) { 699 fprintf(stderr, "Failed to make color cursor from %p\n", c); 700 return; 701 } 702 if (guest_cursor && 703 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 704 SDL_SetCursor(guest_sprite); 705 } 706 } 707 708 static void sdl_cleanup(void) 709 { 710 if (guest_sprite) { 711 SDL_FreeCursor(guest_sprite); 712 } 713 SDL_QuitSubSystem(SDL_INIT_VIDEO); 714 } 715 716 static const DisplayChangeListenerOps dcl_2d_ops = { 717 .dpy_name = "sdl2-2d", 718 .dpy_gfx_update = sdl2_2d_update, 719 .dpy_gfx_switch = sdl2_2d_switch, 720 .dpy_gfx_check_format = sdl2_2d_check_format, 721 .dpy_refresh = sdl2_2d_refresh, 722 .dpy_mouse_set = sdl_mouse_warp, 723 .dpy_cursor_define = sdl_mouse_define, 724 }; 725 726 #ifdef CONFIG_OPENGL 727 static const DisplayChangeListenerOps dcl_gl_ops = { 728 .dpy_name = "sdl2-gl", 729 .dpy_gfx_update = sdl2_gl_update, 730 .dpy_gfx_switch = sdl2_gl_switch, 731 .dpy_gfx_check_format = console_gl_check_format, 732 .dpy_refresh = sdl2_gl_refresh, 733 .dpy_mouse_set = sdl_mouse_warp, 734 .dpy_cursor_define = sdl_mouse_define, 735 736 .dpy_gl_ctx_create = sdl2_gl_create_context, 737 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 738 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 739 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, 740 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 741 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 742 .dpy_gl_update = sdl2_gl_scanout_flush, 743 }; 744 #endif 745 746 static void sdl2_display_early_init(DisplayOptions *o) 747 { 748 assert(o->type == DISPLAY_TYPE_SDL); 749 if (o->has_gl && o->gl) { 750 #ifdef CONFIG_OPENGL 751 display_opengl = 1; 752 #endif 753 } 754 } 755 756 static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) 757 { 758 uint8_t data = 0; 759 int i; 760 SDL_SysWMinfo info; 761 SDL_Surface *icon = NULL; 762 763 assert(o->type == DISPLAY_TYPE_SDL); 764 765 #ifdef __linux__ 766 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 767 * accessible $DISPLAY to open X11 window. This is often the case 768 * when qemu is run using sudo. But in this case, and when actually 769 * run in X11 environment, SDL fights with X11 for the video card, 770 * making current display unavailable, often until reboot. 771 * So make x11 the default SDL video driver if this variable is unset. 772 * This is a bit hackish but saves us from bigger problem. 773 * Maybe it's a good idea to fix this in SDL instead. 774 */ 775 g_setenv("SDL_VIDEODRIVER", "x11", 0); 776 #endif 777 778 if (SDL_Init(SDL_INIT_VIDEO)) { 779 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 780 SDL_GetError()); 781 exit(1); 782 } 783 #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */ 784 SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0"); 785 #endif 786 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 787 memset(&info, 0, sizeof(info)); 788 SDL_VERSION(&info.version); 789 790 gui_fullscreen = o->has_full_screen && o->full_screen; 791 792 for (i = 0;; i++) { 793 QemuConsole *con = qemu_console_lookup_by_index(i); 794 if (!con) { 795 break; 796 } 797 } 798 sdl2_num_outputs = i; 799 if (sdl2_num_outputs == 0) { 800 return; 801 } 802 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 803 for (i = 0; i < sdl2_num_outputs; i++) { 804 QemuConsole *con = qemu_console_lookup_by_index(i); 805 assert(con != NULL); 806 if (!qemu_console_is_graphic(con) && 807 qemu_console_get_index(con) != 0) { 808 sdl2_console[i].hidden = true; 809 } 810 sdl2_console[i].idx = i; 811 sdl2_console[i].opts = o; 812 #ifdef CONFIG_OPENGL 813 sdl2_console[i].opengl = display_opengl; 814 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 815 #else 816 sdl2_console[i].opengl = 0; 817 sdl2_console[i].dcl.ops = &dcl_2d_ops; 818 #endif 819 sdl2_console[i].dcl.con = con; 820 sdl2_console[i].kbd = qkbd_state_init(con); 821 register_displaychangelistener(&sdl2_console[i].dcl); 822 823 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 824 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 825 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 826 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 827 #elif defined(SDL_VIDEO_DRIVER_X11) 828 qemu_console_set_window_id(con, info.info.x11.window); 829 #endif 830 } 831 #endif 832 } 833 834 #ifdef CONFIG_SDL_IMAGE 835 icon = IMG_Load(CONFIG_QEMU_ICONDIR "/hicolor/128x128/apps/qemu.png"); 836 #else 837 /* Load a 32x32x4 image. White pixels are transparent. */ 838 icon = SDL_LoadBMP(CONFIG_QEMU_ICONDIR "/hicolor/32x32/apps/qemu.bmp"); 839 if (icon) { 840 uint32_t colorkey = SDL_MapRGB(icon->format, 255, 255, 255); 841 SDL_SetColorKey(icon, SDL_TRUE, colorkey); 842 } 843 #endif 844 if (icon) { 845 SDL_SetWindowIcon(sdl2_console[0].real_window, icon); 846 } 847 848 gui_grab = 0; 849 if (gui_fullscreen) { 850 sdl_grab_start(0); 851 } 852 853 mouse_mode_notifier.notify = sdl_mouse_mode_change; 854 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 855 856 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 857 sdl_cursor_normal = SDL_GetCursor(); 858 859 atexit(sdl_cleanup); 860 } 861 862 static QemuDisplay qemu_display_sdl2 = { 863 .type = DISPLAY_TYPE_SDL, 864 .early_init = sdl2_display_early_init, 865 .init = sdl2_display_init, 866 }; 867 868 static void register_sdl1(void) 869 { 870 qemu_display_register(&qemu_display_sdl2); 871 } 872 873 type_init(register_sdl1); 874
