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(struct sdl2_console *scon) 165 { 166 if (scon->opts->has_show_cursor && scon->opts->show_cursor) { 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(struct sdl2_console *scon) 179 { 180 if (scon->opts->has_show_cursor && scon->opts->show_cursor) { 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(scon); 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(scon); 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) { 336 return; 337 } 338 339 if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) { 340 switch (ev->key.keysym.scancode) { 341 case SDL_SCANCODE_2: 342 case SDL_SCANCODE_3: 343 case SDL_SCANCODE_4: 344 case SDL_SCANCODE_5: 345 case SDL_SCANCODE_6: 346 case SDL_SCANCODE_7: 347 case SDL_SCANCODE_8: 348 case SDL_SCANCODE_9: 349 if (gui_grab) { 350 sdl_grab_end(scon); 351 } 352 353 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 354 if (win < sdl2_num_outputs) { 355 sdl2_console[win].hidden = !sdl2_console[win].hidden; 356 if (sdl2_console[win].real_window) { 357 if (sdl2_console[win].hidden) { 358 SDL_HideWindow(sdl2_console[win].real_window); 359 } else { 360 SDL_ShowWindow(sdl2_console[win].real_window); 361 } 362 } 363 gui_keysym = 1; 364 } 365 break; 366 case SDL_SCANCODE_F: 367 toggle_full_screen(scon); 368 gui_keysym = 1; 369 break; 370 case SDL_SCANCODE_G: 371 gui_keysym = 1; 372 if (!gui_grab) { 373 sdl_grab_start(scon); 374 } else if (!gui_fullscreen) { 375 sdl_grab_end(scon); 376 } 377 break; 378 case SDL_SCANCODE_U: 379 sdl2_window_resize(scon); 380 if (!scon->opengl) { 381 /* re-create scon->texture */ 382 sdl2_2d_switch(&scon->dcl, scon->surface); 383 } 384 gui_keysym = 1; 385 break; 386 #if 0 387 case SDL_SCANCODE_KP_PLUS: 388 case SDL_SCANCODE_KP_MINUS: 389 if (!gui_fullscreen) { 390 int scr_w, scr_h; 391 int width, height; 392 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 393 394 width = MAX(scr_w + (ev->key.keysym.scancode == 395 SDL_SCANCODE_KP_PLUS ? 50 : -50), 396 160); 397 height = (surface_height(scon->surface) * width) / 398 surface_width(scon->surface); 399 fprintf(stderr, "%s: scale to %dx%d\n", 400 __func__, width, height); 401 sdl_scale(scon, width, height); 402 sdl2_redraw(scon); 403 gui_keysym = 1; 404 } 405 #endif 406 default: 407 break; 408 } 409 } 410 if (!gui_keysym) { 411 sdl2_process_key(scon, &ev->key); 412 } 413 } 414 415 static void handle_keyup(SDL_Event *ev) 416 { 417 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 418 419 if (!scon) { 420 return; 421 } 422 423 scon->ignore_hotkeys = false; 424 sdl2_process_key(scon, &ev->key); 425 } 426 427 static void handle_textinput(SDL_Event *ev) 428 { 429 struct sdl2_console *scon = get_scon_from_window(ev->text.windowID); 430 QemuConsole *con = scon ? scon->dcl.con : NULL; 431 432 if (!con) { 433 return; 434 } 435 436 if (qemu_console_is_graphic(con)) { 437 return; 438 } 439 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 440 } 441 442 static void handle_mousemotion(SDL_Event *ev) 443 { 444 int max_x, max_y; 445 struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID); 446 447 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 448 return; 449 } 450 451 if (qemu_input_is_absolute() || absolute_enabled) { 452 int scr_w, scr_h; 453 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 454 max_x = scr_w - 1; 455 max_y = scr_h - 1; 456 if (gui_grab && !gui_fullscreen 457 && (ev->motion.x == 0 || ev->motion.y == 0 || 458 ev->motion.x == max_x || ev->motion.y == max_y)) { 459 sdl_grab_end(scon); 460 } 461 if (!gui_grab && 462 (ev->motion.x > 0 && ev->motion.x < max_x && 463 ev->motion.y > 0 && ev->motion.y < max_y)) { 464 sdl_grab_start(scon); 465 } 466 } 467 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 468 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 469 ev->motion.x, ev->motion.y, ev->motion.state); 470 } 471 } 472 473 static void handle_mousebutton(SDL_Event *ev) 474 { 475 int buttonstate = SDL_GetMouseState(NULL, NULL); 476 SDL_MouseButtonEvent *bev; 477 struct sdl2_console *scon = get_scon_from_window(ev->button.windowID); 478 479 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 480 return; 481 } 482 483 bev = &ev->button; 484 if (!gui_grab && !qemu_input_is_absolute()) { 485 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 486 /* start grabbing all events */ 487 sdl_grab_start(scon); 488 } 489 } else { 490 if (ev->type == SDL_MOUSEBUTTONDOWN) { 491 buttonstate |= SDL_BUTTON(bev->button); 492 } else { 493 buttonstate &= ~SDL_BUTTON(bev->button); 494 } 495 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 496 } 497 } 498 499 static void handle_mousewheel(SDL_Event *ev) 500 { 501 struct sdl2_console *scon = get_scon_from_window(ev->wheel.windowID); 502 SDL_MouseWheelEvent *wev = &ev->wheel; 503 InputButton btn; 504 505 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 506 return; 507 } 508 509 if (wev->y > 0) { 510 btn = INPUT_BUTTON_WHEEL_UP; 511 } else if (wev->y < 0) { 512 btn = INPUT_BUTTON_WHEEL_DOWN; 513 } else { 514 return; 515 } 516 517 qemu_input_queue_btn(scon->dcl.con, btn, true); 518 qemu_input_event_sync(); 519 qemu_input_queue_btn(scon->dcl.con, btn, false); 520 qemu_input_event_sync(); 521 } 522 523 static void handle_windowevent(SDL_Event *ev) 524 { 525 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 526 bool allow_close = true; 527 528 if (!scon) { 529 return; 530 } 531 532 switch (ev->window.event) { 533 case SDL_WINDOWEVENT_RESIZED: 534 { 535 QemuUIInfo info; 536 memset(&info, 0, sizeof(info)); 537 info.width = ev->window.data1; 538 info.height = ev->window.data2; 539 dpy_set_ui_info(scon->dcl.con, &info); 540 } 541 sdl2_redraw(scon); 542 break; 543 case SDL_WINDOWEVENT_EXPOSED: 544 sdl2_redraw(scon); 545 break; 546 case SDL_WINDOWEVENT_FOCUS_GAINED: 547 case SDL_WINDOWEVENT_ENTER: 548 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 549 absolute_mouse_grab(scon); 550 } 551 /* If a new console window opened using a hotkey receives the 552 * focus, SDL sends another KEYDOWN event to the new window, 553 * closing the console window immediately after. 554 * 555 * Work around this by ignoring further hotkey events until a 556 * key is released. 557 */ 558 scon->ignore_hotkeys = get_mod_state(); 559 break; 560 case SDL_WINDOWEVENT_FOCUS_LOST: 561 if (gui_grab && !gui_fullscreen) { 562 sdl_grab_end(scon); 563 } 564 break; 565 case SDL_WINDOWEVENT_RESTORED: 566 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 567 break; 568 case SDL_WINDOWEVENT_MINIMIZED: 569 update_displaychangelistener(&scon->dcl, 500); 570 break; 571 case SDL_WINDOWEVENT_CLOSE: 572 if (qemu_console_is_graphic(scon->dcl.con)) { 573 if (scon->opts->has_window_close && !scon->opts->window_close) { 574 allow_close = false; 575 } 576 if (allow_close) { 577 no_shutdown = 0; 578 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 579 } 580 } else { 581 SDL_HideWindow(scon->real_window); 582 scon->hidden = true; 583 } 584 break; 585 case SDL_WINDOWEVENT_SHOWN: 586 scon->hidden = false; 587 break; 588 case SDL_WINDOWEVENT_HIDDEN: 589 scon->hidden = true; 590 break; 591 } 592 } 593 594 void sdl2_poll_events(struct sdl2_console *scon) 595 { 596 SDL_Event ev1, *ev = &ev1; 597 bool allow_close = true; 598 int idle = 1; 599 600 if (scon->last_vm_running != runstate_is_running()) { 601 scon->last_vm_running = runstate_is_running(); 602 sdl_update_caption(scon); 603 } 604 605 while (SDL_PollEvent(ev)) { 606 switch (ev->type) { 607 case SDL_KEYDOWN: 608 idle = 0; 609 handle_keydown(ev); 610 break; 611 case SDL_KEYUP: 612 idle = 0; 613 handle_keyup(ev); 614 break; 615 case SDL_TEXTINPUT: 616 idle = 0; 617 handle_textinput(ev); 618 break; 619 case SDL_QUIT: 620 if (scon->opts->has_window_close && !scon->opts->window_close) { 621 allow_close = false; 622 } 623 if (allow_close) { 624 no_shutdown = 0; 625 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 626 } 627 break; 628 case SDL_MOUSEMOTION: 629 idle = 0; 630 handle_mousemotion(ev); 631 break; 632 case SDL_MOUSEBUTTONDOWN: 633 case SDL_MOUSEBUTTONUP: 634 idle = 0; 635 handle_mousebutton(ev); 636 break; 637 case SDL_MOUSEWHEEL: 638 idle = 0; 639 handle_mousewheel(ev); 640 break; 641 case SDL_WINDOWEVENT: 642 handle_windowevent(ev); 643 break; 644 default: 645 break; 646 } 647 } 648 649 if (idle) { 650 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 651 scon->idle_counter++; 652 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 653 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 654 } 655 } 656 } else { 657 scon->idle_counter = 0; 658 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 659 } 660 } 661 662 static void sdl_mouse_warp(DisplayChangeListener *dcl, 663 int x, int y, int on) 664 { 665 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 666 667 if (!qemu_console_is_graphic(scon->dcl.con)) { 668 return; 669 } 670 671 if (on) { 672 if (!guest_cursor) { 673 sdl_show_cursor(scon); 674 } 675 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 676 SDL_SetCursor(guest_sprite); 677 if (!qemu_input_is_absolute() && !absolute_enabled) { 678 SDL_WarpMouseInWindow(scon->real_window, x, y); 679 } 680 } 681 } else if (gui_grab) { 682 sdl_hide_cursor(scon); 683 } 684 guest_cursor = on; 685 guest_x = x, guest_y = y; 686 } 687 688 static void sdl_mouse_define(DisplayChangeListener *dcl, 689 QEMUCursor *c) 690 { 691 692 if (guest_sprite) { 693 SDL_FreeCursor(guest_sprite); 694 } 695 696 if (guest_sprite_surface) { 697 SDL_FreeSurface(guest_sprite_surface); 698 } 699 700 guest_sprite_surface = 701 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 702 0xff0000, 0x00ff00, 0xff, 0xff000000); 703 704 if (!guest_sprite_surface) { 705 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 706 return; 707 } 708 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 709 c->hot_x, c->hot_y); 710 if (!guest_sprite) { 711 fprintf(stderr, "Failed to make color cursor from %p\n", c); 712 return; 713 } 714 if (guest_cursor && 715 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 716 SDL_SetCursor(guest_sprite); 717 } 718 } 719 720 static void sdl_cleanup(void) 721 { 722 if (guest_sprite) { 723 SDL_FreeCursor(guest_sprite); 724 } 725 SDL_QuitSubSystem(SDL_INIT_VIDEO); 726 } 727 728 static const DisplayChangeListenerOps dcl_2d_ops = { 729 .dpy_name = "sdl2-2d", 730 .dpy_gfx_update = sdl2_2d_update, 731 .dpy_gfx_switch = sdl2_2d_switch, 732 .dpy_gfx_check_format = sdl2_2d_check_format, 733 .dpy_refresh = sdl2_2d_refresh, 734 .dpy_mouse_set = sdl_mouse_warp, 735 .dpy_cursor_define = sdl_mouse_define, 736 }; 737 738 #ifdef CONFIG_OPENGL 739 static const DisplayChangeListenerOps dcl_gl_ops = { 740 .dpy_name = "sdl2-gl", 741 .dpy_gfx_update = sdl2_gl_update, 742 .dpy_gfx_switch = sdl2_gl_switch, 743 .dpy_gfx_check_format = console_gl_check_format, 744 .dpy_refresh = sdl2_gl_refresh, 745 .dpy_mouse_set = sdl_mouse_warp, 746 .dpy_cursor_define = sdl_mouse_define, 747 748 .dpy_gl_ctx_create = sdl2_gl_create_context, 749 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 750 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 751 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, 752 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 753 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 754 .dpy_gl_update = sdl2_gl_scanout_flush, 755 }; 756 #endif 757 758 static void sdl2_display_early_init(DisplayOptions *o) 759 { 760 assert(o->type == DISPLAY_TYPE_SDL); 761 if (o->has_gl && o->gl) { 762 #ifdef CONFIG_OPENGL 763 display_opengl = 1; 764 #endif 765 } 766 } 767 768 static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) 769 { 770 uint8_t data = 0; 771 int i; 772 SDL_SysWMinfo info; 773 SDL_Surface *icon = NULL; 774 775 assert(o->type == DISPLAY_TYPE_SDL); 776 777 #ifdef __linux__ 778 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 779 * accessible $DISPLAY to open X11 window. This is often the case 780 * when qemu is run using sudo. But in this case, and when actually 781 * run in X11 environment, SDL fights with X11 for the video card, 782 * making current display unavailable, often until reboot. 783 * So make x11 the default SDL video driver if this variable is unset. 784 * This is a bit hackish but saves us from bigger problem. 785 * Maybe it's a good idea to fix this in SDL instead. 786 */ 787 g_setenv("SDL_VIDEODRIVER", "x11", 0); 788 #endif 789 790 if (SDL_Init(SDL_INIT_VIDEO)) { 791 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 792 SDL_GetError()); 793 exit(1); 794 } 795 #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */ 796 SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0"); 797 #endif 798 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 799 memset(&info, 0, sizeof(info)); 800 SDL_VERSION(&info.version); 801 802 gui_fullscreen = o->has_full_screen && o->full_screen; 803 804 for (i = 0;; i++) { 805 QemuConsole *con = qemu_console_lookup_by_index(i); 806 if (!con) { 807 break; 808 } 809 } 810 sdl2_num_outputs = i; 811 if (sdl2_num_outputs == 0) { 812 return; 813 } 814 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 815 for (i = 0; i < sdl2_num_outputs; i++) { 816 QemuConsole *con = qemu_console_lookup_by_index(i); 817 assert(con != NULL); 818 if (!qemu_console_is_graphic(con) && 819 qemu_console_get_index(con) != 0) { 820 sdl2_console[i].hidden = true; 821 } 822 sdl2_console[i].idx = i; 823 sdl2_console[i].opts = o; 824 #ifdef CONFIG_OPENGL 825 sdl2_console[i].opengl = display_opengl; 826 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 827 #else 828 sdl2_console[i].opengl = 0; 829 sdl2_console[i].dcl.ops = &dcl_2d_ops; 830 #endif 831 sdl2_console[i].dcl.con = con; 832 sdl2_console[i].kbd = qkbd_state_init(con); 833 register_displaychangelistener(&sdl2_console[i].dcl); 834 835 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 836 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 837 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 838 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 839 #elif defined(SDL_VIDEO_DRIVER_X11) 840 qemu_console_set_window_id(con, info.info.x11.window); 841 #endif 842 } 843 #endif 844 } 845 846 #ifdef CONFIG_SDL_IMAGE 847 icon = IMG_Load(CONFIG_QEMU_ICONDIR "/hicolor/128x128/apps/qemu.png"); 848 #else 849 /* Load a 32x32x4 image. White pixels are transparent. */ 850 icon = SDL_LoadBMP(CONFIG_QEMU_ICONDIR "/hicolor/32x32/apps/qemu.bmp"); 851 if (icon) { 852 uint32_t colorkey = SDL_MapRGB(icon->format, 255, 255, 255); 853 SDL_SetColorKey(icon, SDL_TRUE, colorkey); 854 } 855 #endif 856 if (icon) { 857 SDL_SetWindowIcon(sdl2_console[0].real_window, icon); 858 } 859 860 gui_grab = 0; 861 if (gui_fullscreen) { 862 sdl_grab_start(0); 863 } 864 865 mouse_mode_notifier.notify = sdl_mouse_mode_change; 866 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 867 868 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 869 sdl_cursor_normal = SDL_GetCursor(); 870 871 atexit(sdl_cleanup); 872 } 873 874 static QemuDisplay qemu_display_sdl2 = { 875 .type = DISPLAY_TYPE_SDL, 876 .early_init = sdl2_display_early_init, 877 .init = sdl2_display_init, 878 }; 879 880 static void register_sdl1(void) 881 { 882 qemu_display_register(&qemu_display_sdl2); 883 } 884 885 type_init(register_sdl1); 886
