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 [INPUT_BUTTON_SIDE] = SDL_BUTTON(SDL_BUTTON_X1), 279 [INPUT_BUTTON_EXTRA] = SDL_BUTTON(SDL_BUTTON_X2) 280 }; 281 static uint32_t prev_state; 282 283 if (prev_state != state) { 284 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); 285 prev_state = state; 286 } 287 288 if (qemu_input_is_absolute()) { 289 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, 290 x, 0, surface_width(scon->surface)); 291 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, 292 y, 0, surface_height(scon->surface)); 293 } else { 294 if (guest_cursor) { 295 x -= guest_x; 296 y -= guest_y; 297 guest_x += x; 298 guest_y += y; 299 dx = x; 300 dy = y; 301 } 302 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 303 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 304 } 305 qemu_input_event_sync(); 306 } 307 308 static void toggle_full_screen(struct sdl2_console *scon) 309 { 310 gui_fullscreen = !gui_fullscreen; 311 if (gui_fullscreen) { 312 SDL_SetWindowFullscreen(scon->real_window, 313 SDL_WINDOW_FULLSCREEN_DESKTOP); 314 gui_saved_grab = gui_grab; 315 sdl_grab_start(scon); 316 } else { 317 if (!gui_saved_grab) { 318 sdl_grab_end(scon); 319 } 320 SDL_SetWindowFullscreen(scon->real_window, 0); 321 } 322 sdl2_redraw(scon); 323 } 324 325 static int get_mod_state(void) 326 { 327 SDL_Keymod mod = SDL_GetModState(); 328 329 if (alt_grab) { 330 return (mod & (gui_grab_code | KMOD_LSHIFT)) == 331 (gui_grab_code | KMOD_LSHIFT); 332 } else if (ctrl_grab) { 333 return (mod & KMOD_RCTRL) == KMOD_RCTRL; 334 } else { 335 return (mod & gui_grab_code) == gui_grab_code; 336 } 337 } 338 339 static void *sdl2_win32_get_hwnd(struct sdl2_console *scon) 340 { 341 #ifdef CONFIG_WIN32 342 SDL_SysWMinfo info; 343 344 SDL_VERSION(&info.version); 345 if (SDL_GetWindowWMInfo(scon->real_window, &info)) { 346 return info.info.win.window; 347 } 348 #endif 349 return NULL; 350 } 351 352 static void handle_keydown(SDL_Event *ev) 353 { 354 int win; 355 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 356 int gui_key_modifier_pressed = get_mod_state(); 357 int gui_keysym = 0; 358 359 if (!scon) { 360 return; 361 } 362 363 if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) { 364 switch (ev->key.keysym.scancode) { 365 case SDL_SCANCODE_2: 366 case SDL_SCANCODE_3: 367 case SDL_SCANCODE_4: 368 case SDL_SCANCODE_5: 369 case SDL_SCANCODE_6: 370 case SDL_SCANCODE_7: 371 case SDL_SCANCODE_8: 372 case SDL_SCANCODE_9: 373 if (gui_grab) { 374 sdl_grab_end(scon); 375 } 376 377 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 378 if (win < sdl2_num_outputs) { 379 sdl2_console[win].hidden = !sdl2_console[win].hidden; 380 if (sdl2_console[win].real_window) { 381 if (sdl2_console[win].hidden) { 382 SDL_HideWindow(sdl2_console[win].real_window); 383 } else { 384 SDL_ShowWindow(sdl2_console[win].real_window); 385 } 386 } 387 gui_keysym = 1; 388 } 389 break; 390 case SDL_SCANCODE_F: 391 toggle_full_screen(scon); 392 gui_keysym = 1; 393 break; 394 case SDL_SCANCODE_G: 395 gui_keysym = 1; 396 if (!gui_grab) { 397 sdl_grab_start(scon); 398 } else if (!gui_fullscreen) { 399 sdl_grab_end(scon); 400 } 401 break; 402 case SDL_SCANCODE_U: 403 sdl2_window_resize(scon); 404 if (!scon->opengl) { 405 /* re-create scon->texture */ 406 sdl2_2d_switch(&scon->dcl, scon->surface); 407 } 408 gui_keysym = 1; 409 break; 410 #if 0 411 case SDL_SCANCODE_KP_PLUS: 412 case SDL_SCANCODE_KP_MINUS: 413 if (!gui_fullscreen) { 414 int scr_w, scr_h; 415 int width, height; 416 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 417 418 width = MAX(scr_w + (ev->key.keysym.scancode == 419 SDL_SCANCODE_KP_PLUS ? 50 : -50), 420 160); 421 height = (surface_height(scon->surface) * width) / 422 surface_width(scon->surface); 423 fprintf(stderr, "%s: scale to %dx%d\n", 424 __func__, width, height); 425 sdl_scale(scon, width, height); 426 sdl2_redraw(scon); 427 gui_keysym = 1; 428 } 429 #endif 430 default: 431 break; 432 } 433 } 434 if (!gui_keysym) { 435 sdl2_process_key(scon, &ev->key); 436 } 437 } 438 439 static void handle_keyup(SDL_Event *ev) 440 { 441 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 442 443 if (!scon) { 444 return; 445 } 446 447 scon->ignore_hotkeys = false; 448 sdl2_process_key(scon, &ev->key); 449 } 450 451 static void handle_textinput(SDL_Event *ev) 452 { 453 struct sdl2_console *scon = get_scon_from_window(ev->text.windowID); 454 QemuConsole *con = scon ? scon->dcl.con : NULL; 455 456 if (!con) { 457 return; 458 } 459 460 if (qemu_console_is_graphic(con)) { 461 return; 462 } 463 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 464 } 465 466 static void handle_mousemotion(SDL_Event *ev) 467 { 468 int max_x, max_y; 469 struct sdl2_console *scon = get_scon_from_window(ev->motion.windowID); 470 471 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 472 return; 473 } 474 475 if (qemu_input_is_absolute() || absolute_enabled) { 476 int scr_w, scr_h; 477 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 478 max_x = scr_w - 1; 479 max_y = scr_h - 1; 480 if (gui_grab && !gui_fullscreen 481 && (ev->motion.x == 0 || ev->motion.y == 0 || 482 ev->motion.x == max_x || ev->motion.y == max_y)) { 483 sdl_grab_end(scon); 484 } 485 if (!gui_grab && 486 (ev->motion.x > 0 && ev->motion.x < max_x && 487 ev->motion.y > 0 && ev->motion.y < max_y)) { 488 sdl_grab_start(scon); 489 } 490 } 491 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 492 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 493 ev->motion.x, ev->motion.y, ev->motion.state); 494 } 495 } 496 497 static void handle_mousebutton(SDL_Event *ev) 498 { 499 int buttonstate = SDL_GetMouseState(NULL, NULL); 500 SDL_MouseButtonEvent *bev; 501 struct sdl2_console *scon = get_scon_from_window(ev->button.windowID); 502 503 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 504 return; 505 } 506 507 bev = &ev->button; 508 if (!gui_grab && !qemu_input_is_absolute()) { 509 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 510 /* start grabbing all events */ 511 sdl_grab_start(scon); 512 } 513 } else { 514 if (ev->type == SDL_MOUSEBUTTONDOWN) { 515 buttonstate |= SDL_BUTTON(bev->button); 516 } else { 517 buttonstate &= ~SDL_BUTTON(bev->button); 518 } 519 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 520 } 521 } 522 523 static void handle_mousewheel(SDL_Event *ev) 524 { 525 struct sdl2_console *scon = get_scon_from_window(ev->wheel.windowID); 526 SDL_MouseWheelEvent *wev = &ev->wheel; 527 InputButton btn; 528 529 if (!scon || !qemu_console_is_graphic(scon->dcl.con)) { 530 return; 531 } 532 533 if (wev->y > 0) { 534 btn = INPUT_BUTTON_WHEEL_UP; 535 } else if (wev->y < 0) { 536 btn = INPUT_BUTTON_WHEEL_DOWN; 537 } else { 538 return; 539 } 540 541 qemu_input_queue_btn(scon->dcl.con, btn, true); 542 qemu_input_event_sync(); 543 qemu_input_queue_btn(scon->dcl.con, btn, false); 544 qemu_input_event_sync(); 545 } 546 547 static void handle_windowevent(SDL_Event *ev) 548 { 549 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 550 bool allow_close = true; 551 552 if (!scon) { 553 return; 554 } 555 556 switch (ev->window.event) { 557 case SDL_WINDOWEVENT_RESIZED: 558 { 559 QemuUIInfo info; 560 memset(&info, 0, sizeof(info)); 561 info.width = ev->window.data1; 562 info.height = ev->window.data2; 563 dpy_set_ui_info(scon->dcl.con, &info); 564 } 565 sdl2_redraw(scon); 566 break; 567 case SDL_WINDOWEVENT_EXPOSED: 568 sdl2_redraw(scon); 569 break; 570 case SDL_WINDOWEVENT_FOCUS_GAINED: 571 win32_kbd_set_grab(gui_grab); 572 if (qemu_console_is_graphic(scon->dcl.con)) { 573 win32_kbd_set_window(sdl2_win32_get_hwnd(scon)); 574 } 575 /* fall through */ 576 case SDL_WINDOWEVENT_ENTER: 577 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 578 absolute_mouse_grab(scon); 579 } 580 /* If a new console window opened using a hotkey receives the 581 * focus, SDL sends another KEYDOWN event to the new window, 582 * closing the console window immediately after. 583 * 584 * Work around this by ignoring further hotkey events until a 585 * key is released. 586 */ 587 scon->ignore_hotkeys = get_mod_state(); 588 break; 589 case SDL_WINDOWEVENT_FOCUS_LOST: 590 if (qemu_console_is_graphic(scon->dcl.con)) { 591 win32_kbd_set_window(NULL); 592 } 593 if (gui_grab && !gui_fullscreen) { 594 sdl_grab_end(scon); 595 } 596 break; 597 case SDL_WINDOWEVENT_RESTORED: 598 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 599 break; 600 case SDL_WINDOWEVENT_MINIMIZED: 601 update_displaychangelistener(&scon->dcl, 500); 602 break; 603 case SDL_WINDOWEVENT_CLOSE: 604 if (qemu_console_is_graphic(scon->dcl.con)) { 605 if (scon->opts->has_window_close && !scon->opts->window_close) { 606 allow_close = false; 607 } 608 if (allow_close) { 609 no_shutdown = 0; 610 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 611 } 612 } else { 613 SDL_HideWindow(scon->real_window); 614 scon->hidden = true; 615 } 616 break; 617 case SDL_WINDOWEVENT_SHOWN: 618 scon->hidden = false; 619 break; 620 case SDL_WINDOWEVENT_HIDDEN: 621 scon->hidden = true; 622 break; 623 } 624 } 625 626 void sdl2_poll_events(struct sdl2_console *scon) 627 { 628 SDL_Event ev1, *ev = &ev1; 629 bool allow_close = true; 630 int idle = 1; 631 632 if (scon->last_vm_running != runstate_is_running()) { 633 scon->last_vm_running = runstate_is_running(); 634 sdl_update_caption(scon); 635 } 636 637 while (SDL_PollEvent(ev)) { 638 switch (ev->type) { 639 case SDL_KEYDOWN: 640 idle = 0; 641 handle_keydown(ev); 642 break; 643 case SDL_KEYUP: 644 idle = 0; 645 handle_keyup(ev); 646 break; 647 case SDL_TEXTINPUT: 648 idle = 0; 649 handle_textinput(ev); 650 break; 651 case SDL_QUIT: 652 if (scon->opts->has_window_close && !scon->opts->window_close) { 653 allow_close = false; 654 } 655 if (allow_close) { 656 no_shutdown = 0; 657 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI); 658 } 659 break; 660 case SDL_MOUSEMOTION: 661 idle = 0; 662 handle_mousemotion(ev); 663 break; 664 case SDL_MOUSEBUTTONDOWN: 665 case SDL_MOUSEBUTTONUP: 666 idle = 0; 667 handle_mousebutton(ev); 668 break; 669 case SDL_MOUSEWHEEL: 670 idle = 0; 671 handle_mousewheel(ev); 672 break; 673 case SDL_WINDOWEVENT: 674 handle_windowevent(ev); 675 break; 676 default: 677 break; 678 } 679 } 680 681 if (idle) { 682 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 683 scon->idle_counter++; 684 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 685 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 686 } 687 } 688 } else { 689 scon->idle_counter = 0; 690 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 691 } 692 } 693 694 static void sdl_mouse_warp(DisplayChangeListener *dcl, 695 int x, int y, int on) 696 { 697 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 698 699 if (!qemu_console_is_graphic(scon->dcl.con)) { 700 return; 701 } 702 703 if (on) { 704 if (!guest_cursor) { 705 sdl_show_cursor(scon); 706 } 707 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 708 SDL_SetCursor(guest_sprite); 709 if (!qemu_input_is_absolute() && !absolute_enabled) { 710 SDL_WarpMouseInWindow(scon->real_window, x, y); 711 } 712 } 713 } else if (gui_grab) { 714 sdl_hide_cursor(scon); 715 } 716 guest_cursor = on; 717 guest_x = x, guest_y = y; 718 } 719 720 static void sdl_mouse_define(DisplayChangeListener *dcl, 721 QEMUCursor *c) 722 { 723 724 if (guest_sprite) { 725 SDL_FreeCursor(guest_sprite); 726 } 727 728 if (guest_sprite_surface) { 729 SDL_FreeSurface(guest_sprite_surface); 730 } 731 732 guest_sprite_surface = 733 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 734 0xff0000, 0x00ff00, 0xff, 0xff000000); 735 736 if (!guest_sprite_surface) { 737 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 738 return; 739 } 740 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 741 c->hot_x, c->hot_y); 742 if (!guest_sprite) { 743 fprintf(stderr, "Failed to make color cursor from %p\n", c); 744 return; 745 } 746 if (guest_cursor && 747 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 748 SDL_SetCursor(guest_sprite); 749 } 750 } 751 752 static void sdl_cleanup(void) 753 { 754 if (guest_sprite) { 755 SDL_FreeCursor(guest_sprite); 756 } 757 SDL_QuitSubSystem(SDL_INIT_VIDEO); 758 } 759 760 static const DisplayChangeListenerOps dcl_2d_ops = { 761 .dpy_name = "sdl2-2d", 762 .dpy_gfx_update = sdl2_2d_update, 763 .dpy_gfx_switch = sdl2_2d_switch, 764 .dpy_gfx_check_format = sdl2_2d_check_format, 765 .dpy_refresh = sdl2_2d_refresh, 766 .dpy_mouse_set = sdl_mouse_warp, 767 .dpy_cursor_define = sdl_mouse_define, 768 }; 769 770 #ifdef CONFIG_OPENGL 771 static const DisplayChangeListenerOps dcl_gl_ops = { 772 .dpy_name = "sdl2-gl", 773 .dpy_gfx_update = sdl2_gl_update, 774 .dpy_gfx_switch = sdl2_gl_switch, 775 .dpy_gfx_check_format = console_gl_check_format, 776 .dpy_refresh = sdl2_gl_refresh, 777 .dpy_mouse_set = sdl_mouse_warp, 778 .dpy_cursor_define = sdl_mouse_define, 779 780 .dpy_gl_ctx_create = sdl2_gl_create_context, 781 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 782 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 783 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, 784 .dpy_gl_scanout_disable = sdl2_gl_scanout_disable, 785 .dpy_gl_scanout_texture = sdl2_gl_scanout_texture, 786 .dpy_gl_update = sdl2_gl_scanout_flush, 787 }; 788 #endif 789 790 static void sdl2_display_early_init(DisplayOptions *o) 791 { 792 assert(o->type == DISPLAY_TYPE_SDL); 793 if (o->has_gl && o->gl) { 794 #ifdef CONFIG_OPENGL 795 display_opengl = 1; 796 #endif 797 } 798 } 799 800 static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) 801 { 802 uint8_t data = 0; 803 int i; 804 SDL_SysWMinfo info; 805 SDL_Surface *icon = NULL; 806 char *dir; 807 808 assert(o->type == DISPLAY_TYPE_SDL); 809 810 #ifdef __linux__ 811 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 812 * accessible $DISPLAY to open X11 window. This is often the case 813 * when qemu is run using sudo. But in this case, and when actually 814 * run in X11 environment, SDL fights with X11 for the video card, 815 * making current display unavailable, often until reboot. 816 * So make x11 the default SDL video driver if this variable is unset. 817 * This is a bit hackish but saves us from bigger problem. 818 * Maybe it's a good idea to fix this in SDL instead. 819 */ 820 g_setenv("SDL_VIDEODRIVER", "x11", 0); 821 #endif 822 823 if (SDL_Init(SDL_INIT_VIDEO)) { 824 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 825 SDL_GetError()); 826 exit(1); 827 } 828 #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */ 829 SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0"); 830 #endif 831 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 832 memset(&info, 0, sizeof(info)); 833 SDL_VERSION(&info.version); 834 835 gui_fullscreen = o->has_full_screen && o->full_screen; 836 837 for (i = 0;; i++) { 838 QemuConsole *con = qemu_console_lookup_by_index(i); 839 if (!con) { 840 break; 841 } 842 } 843 sdl2_num_outputs = i; 844 if (sdl2_num_outputs == 0) { 845 return; 846 } 847 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 848 for (i = 0; i < sdl2_num_outputs; i++) { 849 QemuConsole *con = qemu_console_lookup_by_index(i); 850 assert(con != NULL); 851 if (!qemu_console_is_graphic(con) && 852 qemu_console_get_index(con) != 0) { 853 sdl2_console[i].hidden = true; 854 } 855 sdl2_console[i].idx = i; 856 sdl2_console[i].opts = o; 857 #ifdef CONFIG_OPENGL 858 sdl2_console[i].opengl = display_opengl; 859 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 860 #else 861 sdl2_console[i].opengl = 0; 862 sdl2_console[i].dcl.ops = &dcl_2d_ops; 863 #endif 864 sdl2_console[i].dcl.con = con; 865 sdl2_console[i].kbd = qkbd_state_init(con); 866 register_displaychangelistener(&sdl2_console[i].dcl); 867 868 #if defined(SDL_VIDEO_DRIVER_WINDOWS) || defined(SDL_VIDEO_DRIVER_X11) 869 if (SDL_GetWindowWMInfo(sdl2_console[i].real_window, &info)) { 870 #if defined(SDL_VIDEO_DRIVER_WINDOWS) 871 qemu_console_set_window_id(con, (uintptr_t)info.info.win.window); 872 #elif defined(SDL_VIDEO_DRIVER_X11) 873 qemu_console_set_window_id(con, info.info.x11.window); 874 #endif 875 } 876 #endif 877 } 878 879 #ifdef CONFIG_SDL_IMAGE 880 dir = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/128x128/apps/qemu.png"); 881 icon = IMG_Load(dir); 882 #else 883 /* Load a 32x32x4 image. White pixels are transparent. */ 884 dir = get_relocated_path(CONFIG_QEMU_ICONDIR "/hicolor/32x32/apps/qemu.bmp"); 885 icon = SDL_LoadBMP(dir); 886 if (icon) { 887 uint32_t colorkey = SDL_MapRGB(icon->format, 255, 255, 255); 888 SDL_SetColorKey(icon, SDL_TRUE, colorkey); 889 } 890 #endif 891 g_free(dir); 892 if (icon) { 893 SDL_SetWindowIcon(sdl2_console[0].real_window, icon); 894 } 895 896 mouse_mode_notifier.notify = sdl_mouse_mode_change; 897 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 898 899 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 900 sdl_cursor_normal = SDL_GetCursor(); 901 902 if (gui_fullscreen) { 903 sdl_grab_start(&sdl2_console[0]); 904 } 905 906 atexit(sdl_cleanup); 907 } 908 909 static QemuDisplay qemu_display_sdl2 = { 910 .type = DISPLAY_TYPE_SDL, 911 .early_init = sdl2_display_early_init, 912 .init = sdl2_display_init, 913 }; 914 915 static void register_sdl1(void) 916 { 917 qemu_display_register(&qemu_display_sdl2); 918 } 919 920 type_init(register_sdl1); 921
