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-common.h" 27 #include "ui/console.h" 28 #include "ui/input.h" 29 #include "ui/sdl2.h" 30 #include "sysemu/sysemu.h" 31 32 static int sdl2_num_outputs; 33 static struct sdl2_console *sdl2_console; 34 35 static SDL_Surface *guest_sprite_surface; 36 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ 37 38 static int gui_saved_grab; 39 static int gui_fullscreen; 40 static int gui_noframe; 41 static int gui_key_modifier_pressed; 42 static int gui_keysym; 43 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL; 44 static SDL_Cursor *sdl_cursor_normal; 45 static SDL_Cursor *sdl_cursor_hidden; 46 static int absolute_enabled; 47 static int guest_cursor; 48 static int guest_x, guest_y; 49 static SDL_Cursor *guest_sprite; 50 static Notifier mouse_mode_notifier; 51 52 #define SDL2_REFRESH_INTERVAL_BUSY 10 53 #define SDL2_MAX_IDLE_COUNT (2 * GUI_REFRESH_INTERVAL_DEFAULT \ 54 / SDL2_REFRESH_INTERVAL_BUSY + 1) 55 56 static void sdl_update_caption(struct sdl2_console *scon); 57 58 static struct sdl2_console *get_scon_from_window(uint32_t window_id) 59 { 60 int i; 61 for (i = 0; i < sdl2_num_outputs; i++) { 62 if (sdl2_console[i].real_window == SDL_GetWindowFromID(window_id)) { 63 return &sdl2_console[i]; 64 } 65 } 66 return NULL; 67 } 68 69 void sdl2_window_create(struct sdl2_console *scon) 70 { 71 int flags = 0; 72 73 if (!scon->surface) { 74 return; 75 } 76 assert(!scon->real_window); 77 78 if (gui_fullscreen) { 79 flags |= SDL_WINDOW_FULLSCREEN_DESKTOP; 80 } else { 81 flags |= SDL_WINDOW_RESIZABLE; 82 } 83 if (scon->hidden) { 84 flags |= SDL_WINDOW_HIDDEN; 85 } 86 87 scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, 88 SDL_WINDOWPOS_UNDEFINED, 89 surface_width(scon->surface), 90 surface_height(scon->surface), 91 flags); 92 scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0); 93 if (scon->opengl) { 94 scon->winctx = SDL_GL_GetCurrentContext(); 95 } 96 sdl_update_caption(scon); 97 } 98 99 void sdl2_window_destroy(struct sdl2_console *scon) 100 { 101 if (!scon->real_window) { 102 return; 103 } 104 105 SDL_DestroyRenderer(scon->real_renderer); 106 scon->real_renderer = NULL; 107 SDL_DestroyWindow(scon->real_window); 108 scon->real_window = NULL; 109 } 110 111 void sdl2_window_resize(struct sdl2_console *scon) 112 { 113 if (!scon->real_window) { 114 return; 115 } 116 117 SDL_SetWindowSize(scon->real_window, 118 surface_width(scon->surface), 119 surface_height(scon->surface)); 120 } 121 122 static void sdl2_redraw(struct sdl2_console *scon) 123 { 124 if (scon->opengl) { 125 #ifdef CONFIG_OPENGL 126 sdl2_gl_redraw(scon); 127 #endif 128 } else { 129 sdl2_2d_redraw(scon); 130 } 131 } 132 133 static void sdl_update_caption(struct sdl2_console *scon) 134 { 135 char win_title[1024]; 136 char icon_title[1024]; 137 const char *status = ""; 138 139 if (!runstate_is_running()) { 140 status = " [Stopped]"; 141 } else if (gui_grab) { 142 if (alt_grab) { 143 status = " - Press Ctrl-Alt-Shift to exit grab"; 144 } else if (ctrl_grab) { 145 status = " - Press Right-Ctrl to exit grab"; 146 } else { 147 status = " - Press Ctrl-Alt to exit grab"; 148 } 149 } 150 151 if (qemu_name) { 152 snprintf(win_title, sizeof(win_title), "QEMU (%s-%d)%s", qemu_name, 153 scon->idx, status); 154 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name); 155 } else { 156 snprintf(win_title, sizeof(win_title), "QEMU%s", status); 157 snprintf(icon_title, sizeof(icon_title), "QEMU"); 158 } 159 160 if (scon->real_window) { 161 SDL_SetWindowTitle(scon->real_window, win_title); 162 } 163 } 164 165 static void sdl_hide_cursor(void) 166 { 167 if (!cursor_hide) { 168 return; 169 } 170 171 if (qemu_input_is_absolute()) { 172 SDL_ShowCursor(1); 173 SDL_SetCursor(sdl_cursor_hidden); 174 } else { 175 SDL_SetRelativeMouseMode(SDL_TRUE); 176 } 177 } 178 179 static void sdl_show_cursor(void) 180 { 181 if (!cursor_hide) { 182 return; 183 } 184 185 if (!qemu_input_is_absolute()) { 186 SDL_SetRelativeMouseMode(SDL_FALSE); 187 SDL_ShowCursor(1); 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 } 196 197 static void sdl_grab_start(struct sdl2_console *scon) 198 { 199 QemuConsole *con = scon ? scon->dcl.con : NULL; 200 201 if (!con || !qemu_console_is_graphic(con)) { 202 return; 203 } 204 /* 205 * If the application is not active, do not try to enter grab state. This 206 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the 207 * application (SDL bug). 208 */ 209 if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) { 210 return; 211 } 212 if (guest_cursor) { 213 SDL_SetCursor(guest_sprite); 214 if (!qemu_input_is_absolute() && !absolute_enabled) { 215 SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y); 216 } 217 } else { 218 sdl_hide_cursor(); 219 } 220 SDL_SetWindowGrab(scon->real_window, SDL_TRUE); 221 gui_grab = 1; 222 sdl_update_caption(scon); 223 } 224 225 static void sdl_grab_end(struct sdl2_console *scon) 226 { 227 SDL_SetWindowGrab(scon->real_window, SDL_FALSE); 228 gui_grab = 0; 229 sdl_show_cursor(); 230 sdl_update_caption(scon); 231 } 232 233 static void absolute_mouse_grab(struct sdl2_console *scon) 234 { 235 int mouse_x, mouse_y; 236 int scr_w, scr_h; 237 SDL_GetMouseState(&mouse_x, &mouse_y); 238 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 239 if (mouse_x > 0 && mouse_x < scr_w - 1 && 240 mouse_y > 0 && mouse_y < scr_h - 1) { 241 sdl_grab_start(scon); 242 } 243 } 244 245 static void sdl_mouse_mode_change(Notifier *notify, void *data) 246 { 247 if (qemu_input_is_absolute()) { 248 if (!absolute_enabled) { 249 absolute_enabled = 1; 250 absolute_mouse_grab(&sdl2_console[0]); 251 } 252 } else if (absolute_enabled) { 253 if (!gui_fullscreen) { 254 sdl_grab_end(&sdl2_console[0]); 255 } 256 absolute_enabled = 0; 257 } 258 } 259 260 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy, 261 int x, int y, int state) 262 { 263 static uint32_t bmap[INPUT_BUTTON__MAX] = { 264 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT), 265 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE), 266 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT), 267 }; 268 static uint32_t prev_state; 269 270 if (prev_state != state) { 271 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); 272 prev_state = state; 273 } 274 275 if (qemu_input_is_absolute()) { 276 int scr_w, scr_h; 277 int max_w = 0, max_h = 0; 278 int off_x = 0, off_y = 0; 279 int cur_off_x = 0, cur_off_y = 0; 280 int i; 281 282 for (i = 0; i < sdl2_num_outputs; i++) { 283 struct sdl2_console *thiscon = &sdl2_console[i]; 284 if (thiscon->real_window && thiscon->surface) { 285 SDL_GetWindowSize(thiscon->real_window, &scr_w, &scr_h); 286 cur_off_x = thiscon->x; 287 cur_off_y = thiscon->y; 288 if (scr_w + cur_off_x > max_w) { 289 max_w = scr_w + cur_off_x; 290 } 291 if (scr_h + cur_off_y > max_h) { 292 max_h = scr_h + cur_off_y; 293 } 294 if (i == scon->idx) { 295 off_x = cur_off_x; 296 off_y = cur_off_y; 297 } 298 } 299 } 300 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, off_x + x, max_w); 301 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, off_y + y, max_h); 302 } else { 303 if (guest_cursor) { 304 x -= guest_x; 305 y -= guest_y; 306 guest_x += x; 307 guest_y += y; 308 dx = x; 309 dy = y; 310 } 311 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 312 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 313 } 314 qemu_input_event_sync(); 315 } 316 317 static void toggle_full_screen(struct sdl2_console *scon) 318 { 319 gui_fullscreen = !gui_fullscreen; 320 if (gui_fullscreen) { 321 SDL_SetWindowFullscreen(scon->real_window, 322 SDL_WINDOW_FULLSCREEN_DESKTOP); 323 gui_saved_grab = gui_grab; 324 sdl_grab_start(scon); 325 } else { 326 if (!gui_saved_grab) { 327 sdl_grab_end(scon); 328 } 329 SDL_SetWindowFullscreen(scon->real_window, 0); 330 } 331 sdl2_redraw(scon); 332 } 333 334 static void handle_keydown(SDL_Event *ev) 335 { 336 int mod_state, win; 337 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 338 339 if (alt_grab) { 340 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) == 341 (gui_grab_code | KMOD_LSHIFT); 342 } else if (ctrl_grab) { 343 mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL; 344 } else { 345 mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code; 346 } 347 gui_key_modifier_pressed = mod_state; 348 349 if (gui_key_modifier_pressed) { 350 switch (ev->key.keysym.scancode) { 351 case SDL_SCANCODE_2: 352 case SDL_SCANCODE_3: 353 case SDL_SCANCODE_4: 354 case SDL_SCANCODE_5: 355 case SDL_SCANCODE_6: 356 case SDL_SCANCODE_7: 357 case SDL_SCANCODE_8: 358 case SDL_SCANCODE_9: 359 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 360 if (win < sdl2_num_outputs) { 361 sdl2_console[win].hidden = !sdl2_console[win].hidden; 362 if (sdl2_console[win].real_window) { 363 if (sdl2_console[win].hidden) { 364 SDL_HideWindow(sdl2_console[win].real_window); 365 } else { 366 SDL_ShowWindow(sdl2_console[win].real_window); 367 } 368 } 369 gui_keysym = 1; 370 } 371 break; 372 case SDL_SCANCODE_F: 373 toggle_full_screen(scon); 374 gui_keysym = 1; 375 break; 376 case SDL_SCANCODE_U: 377 sdl2_window_destroy(scon); 378 sdl2_window_create(scon); 379 if (!scon->opengl) { 380 /* re-create scon->texture */ 381 sdl2_2d_switch(&scon->dcl, scon->surface); 382 } 383 gui_keysym = 1; 384 break; 385 #if 0 386 case SDL_SCANCODE_KP_PLUS: 387 case SDL_SCANCODE_KP_MINUS: 388 if (!gui_fullscreen) { 389 int scr_w, scr_h; 390 int width, height; 391 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 392 393 width = MAX(scr_w + (ev->key.keysym.scancode == 394 SDL_SCANCODE_KP_PLUS ? 50 : -50), 395 160); 396 height = (surface_height(scon->surface) * width) / 397 surface_width(scon->surface); 398 fprintf(stderr, "%s: scale to %dx%d\n", 399 __func__, width, height); 400 sdl_scale(scon, width, height); 401 sdl2_redraw(scon); 402 gui_keysym = 1; 403 } 404 #endif 405 default: 406 break; 407 } 408 } 409 if (!gui_keysym) { 410 sdl2_process_key(scon, &ev->key); 411 } 412 } 413 414 static void handle_keyup(SDL_Event *ev) 415 { 416 int mod_state; 417 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 418 419 if (!alt_grab) { 420 mod_state = (ev->key.keysym.mod & gui_grab_code); 421 } else { 422 mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT)); 423 } 424 if (!mod_state && gui_key_modifier_pressed) { 425 gui_key_modifier_pressed = 0; 426 if (gui_keysym == 0) { 427 /* exit/enter grab if pressing Ctrl-Alt */ 428 if (!gui_grab) { 429 sdl_grab_start(scon); 430 } else if (!gui_fullscreen) { 431 sdl_grab_end(scon); 432 } 433 /* SDL does not send back all the modifiers key, so we must 434 * correct it. */ 435 sdl2_reset_keys(scon); 436 return; 437 } 438 gui_keysym = 0; 439 } 440 if (!gui_keysym) { 441 sdl2_process_key(scon, &ev->key); 442 } 443 } 444 445 static void handle_textinput(SDL_Event *ev) 446 { 447 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 448 QemuConsole *con = scon ? scon->dcl.con : NULL; 449 450 if (qemu_console_is_graphic(con)) { 451 return; 452 } 453 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 454 } 455 456 static void handle_mousemotion(SDL_Event *ev) 457 { 458 int max_x, max_y; 459 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 460 461 if (qemu_input_is_absolute() || absolute_enabled) { 462 int scr_w, scr_h; 463 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 464 max_x = scr_w - 1; 465 max_y = scr_h - 1; 466 if (gui_grab && (ev->motion.x == 0 || ev->motion.y == 0 || 467 ev->motion.x == max_x || ev->motion.y == max_y)) { 468 sdl_grab_end(scon); 469 } 470 if (!gui_grab && 471 (ev->motion.x > 0 && ev->motion.x < max_x && 472 ev->motion.y > 0 && ev->motion.y < max_y)) { 473 sdl_grab_start(scon); 474 } 475 } 476 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 477 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 478 ev->motion.x, ev->motion.y, ev->motion.state); 479 } 480 } 481 482 static void handle_mousebutton(SDL_Event *ev) 483 { 484 int buttonstate = SDL_GetMouseState(NULL, NULL); 485 SDL_MouseButtonEvent *bev; 486 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 487 488 bev = &ev->button; 489 if (!gui_grab && !qemu_input_is_absolute()) { 490 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 491 /* start grabbing all events */ 492 sdl_grab_start(scon); 493 } 494 } else { 495 if (ev->type == SDL_MOUSEBUTTONDOWN) { 496 buttonstate |= SDL_BUTTON(bev->button); 497 } else { 498 buttonstate &= ~SDL_BUTTON(bev->button); 499 } 500 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 501 } 502 } 503 504 static void handle_mousewheel(SDL_Event *ev) 505 { 506 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 507 SDL_MouseWheelEvent *wev = &ev->wheel; 508 InputButton btn; 509 510 if (wev->y > 0) { 511 btn = INPUT_BUTTON_WHEELUP; 512 } else if (wev->y < 0) { 513 btn = INPUT_BUTTON_WHEELDOWN; 514 } else { 515 return; 516 } 517 518 qemu_input_queue_btn(scon->dcl.con, btn, true); 519 qemu_input_event_sync(); 520 qemu_input_queue_btn(scon->dcl.con, btn, false); 521 qemu_input_event_sync(); 522 } 523 524 static void handle_windowevent(SDL_Event *ev) 525 { 526 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 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 break; 552 case SDL_WINDOWEVENT_FOCUS_LOST: 553 if (gui_grab && !gui_fullscreen) { 554 sdl_grab_end(scon); 555 } 556 break; 557 case SDL_WINDOWEVENT_RESTORED: 558 update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT); 559 break; 560 case SDL_WINDOWEVENT_MINIMIZED: 561 update_displaychangelistener(&scon->dcl, 500); 562 break; 563 case SDL_WINDOWEVENT_CLOSE: 564 if (!no_quit) { 565 no_shutdown = 0; 566 qemu_system_shutdown_request(); 567 } 568 break; 569 case SDL_WINDOWEVENT_SHOWN: 570 if (scon->hidden) { 571 SDL_HideWindow(scon->real_window); 572 } 573 break; 574 case SDL_WINDOWEVENT_HIDDEN: 575 if (!scon->hidden) { 576 SDL_ShowWindow(scon->real_window); 577 } 578 break; 579 } 580 } 581 582 void sdl2_poll_events(struct sdl2_console *scon) 583 { 584 SDL_Event ev1, *ev = &ev1; 585 int idle = 1; 586 587 if (scon->last_vm_running != runstate_is_running()) { 588 scon->last_vm_running = runstate_is_running(); 589 sdl_update_caption(scon); 590 } 591 592 while (SDL_PollEvent(ev)) { 593 switch (ev->type) { 594 case SDL_KEYDOWN: 595 idle = 0; 596 handle_keydown(ev); 597 break; 598 case SDL_KEYUP: 599 idle = 0; 600 handle_keyup(ev); 601 break; 602 case SDL_TEXTINPUT: 603 idle = 0; 604 handle_textinput(ev); 605 break; 606 case SDL_QUIT: 607 if (!no_quit) { 608 no_shutdown = 0; 609 qemu_system_shutdown_request(); 610 } 611 break; 612 case SDL_MOUSEMOTION: 613 idle = 0; 614 handle_mousemotion(ev); 615 break; 616 case SDL_MOUSEBUTTONDOWN: 617 case SDL_MOUSEBUTTONUP: 618 idle = 0; 619 handle_mousebutton(ev); 620 break; 621 case SDL_MOUSEWHEEL: 622 idle = 0; 623 handle_mousewheel(ev); 624 break; 625 case SDL_WINDOWEVENT: 626 handle_windowevent(ev); 627 break; 628 default: 629 break; 630 } 631 } 632 633 if (idle) { 634 if (scon->idle_counter < SDL2_MAX_IDLE_COUNT) { 635 scon->idle_counter++; 636 if (scon->idle_counter >= SDL2_MAX_IDLE_COUNT) { 637 scon->dcl.update_interval = GUI_REFRESH_INTERVAL_DEFAULT; 638 } 639 } 640 } else { 641 scon->idle_counter = 0; 642 scon->dcl.update_interval = SDL2_REFRESH_INTERVAL_BUSY; 643 } 644 } 645 646 static void sdl_mouse_warp(DisplayChangeListener *dcl, 647 int x, int y, int on) 648 { 649 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 650 if (on) { 651 if (!guest_cursor) { 652 sdl_show_cursor(); 653 } 654 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 655 SDL_SetCursor(guest_sprite); 656 if (!qemu_input_is_absolute() && !absolute_enabled) { 657 SDL_WarpMouseInWindow(scon->real_window, x, y); 658 } 659 } 660 } else if (gui_grab) { 661 sdl_hide_cursor(); 662 } 663 guest_cursor = on; 664 guest_x = x, guest_y = y; 665 } 666 667 static void sdl_mouse_define(DisplayChangeListener *dcl, 668 QEMUCursor *c) 669 { 670 671 if (guest_sprite) { 672 SDL_FreeCursor(guest_sprite); 673 } 674 675 if (guest_sprite_surface) { 676 SDL_FreeSurface(guest_sprite_surface); 677 } 678 679 guest_sprite_surface = 680 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 681 0xff0000, 0x00ff00, 0xff, 0xff000000); 682 683 if (!guest_sprite_surface) { 684 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 685 return; 686 } 687 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 688 c->hot_x, c->hot_y); 689 if (!guest_sprite) { 690 fprintf(stderr, "Failed to make color cursor from %p\n", c); 691 return; 692 } 693 if (guest_cursor && 694 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 695 SDL_SetCursor(guest_sprite); 696 } 697 } 698 699 static void sdl_cleanup(void) 700 { 701 if (guest_sprite) { 702 SDL_FreeCursor(guest_sprite); 703 } 704 SDL_QuitSubSystem(SDL_INIT_VIDEO); 705 } 706 707 static const DisplayChangeListenerOps dcl_2d_ops = { 708 .dpy_name = "sdl2-2d", 709 .dpy_gfx_update = sdl2_2d_update, 710 .dpy_gfx_switch = sdl2_2d_switch, 711 .dpy_gfx_check_format = sdl2_2d_check_format, 712 .dpy_refresh = sdl2_2d_refresh, 713 .dpy_mouse_set = sdl_mouse_warp, 714 .dpy_cursor_define = sdl_mouse_define, 715 }; 716 717 #ifdef CONFIG_OPENGL 718 static const DisplayChangeListenerOps dcl_gl_ops = { 719 .dpy_name = "sdl2-gl", 720 .dpy_gfx_update = sdl2_gl_update, 721 .dpy_gfx_switch = sdl2_gl_switch, 722 .dpy_gfx_check_format = console_gl_check_format, 723 .dpy_refresh = sdl2_gl_refresh, 724 .dpy_mouse_set = sdl_mouse_warp, 725 .dpy_cursor_define = sdl_mouse_define, 726 727 .dpy_gl_ctx_create = sdl2_gl_create_context, 728 .dpy_gl_ctx_destroy = sdl2_gl_destroy_context, 729 .dpy_gl_ctx_make_current = sdl2_gl_make_context_current, 730 .dpy_gl_ctx_get_current = sdl2_gl_get_current_context, 731 .dpy_gl_scanout = sdl2_gl_scanout, 732 .dpy_gl_update = sdl2_gl_scanout_flush, 733 }; 734 #endif 735 736 void sdl_display_early_init(int opengl) 737 { 738 switch (opengl) { 739 case -1: /* default */ 740 case 0: /* off */ 741 break; 742 case 1: /* on */ 743 #ifdef CONFIG_OPENGL 744 display_opengl = 1; 745 #endif 746 break; 747 default: 748 g_assert_not_reached(); 749 break; 750 } 751 } 752 753 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame) 754 { 755 int flags; 756 uint8_t data = 0; 757 char *filename; 758 int i; 759 760 if (no_frame) { 761 gui_noframe = 1; 762 } 763 764 #ifdef __linux__ 765 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 766 * accessible $DISPLAY to open X11 window. This is often the case 767 * when qemu is run using sudo. But in this case, and when actually 768 * run in X11 environment, SDL fights with X11 for the video card, 769 * making current display unavailable, often until reboot. 770 * So make x11 the default SDL video driver if this variable is unset. 771 * This is a bit hackish but saves us from bigger problem. 772 * Maybe it's a good idea to fix this in SDL instead. 773 */ 774 setenv("SDL_VIDEODRIVER", "x11", 0); 775 #endif 776 777 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; 778 if (SDL_Init(flags)) { 779 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 780 SDL_GetError()); 781 exit(1); 782 } 783 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 784 785 for (i = 0;; i++) { 786 QemuConsole *con = qemu_console_lookup_by_index(i); 787 if (!con) { 788 break; 789 } 790 } 791 sdl2_num_outputs = i; 792 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 793 for (i = 0; i < sdl2_num_outputs; i++) { 794 QemuConsole *con = qemu_console_lookup_by_index(i); 795 if (!qemu_console_is_graphic(con)) { 796 sdl2_console[i].hidden = true; 797 } 798 sdl2_console[i].idx = i; 799 #ifdef CONFIG_OPENGL 800 sdl2_console[i].opengl = display_opengl; 801 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 802 #else 803 sdl2_console[i].opengl = 0; 804 sdl2_console[i].dcl.ops = &dcl_2d_ops; 805 #endif 806 sdl2_console[i].dcl.con = con; 807 register_displaychangelistener(&sdl2_console[i].dcl); 808 } 809 810 /* Load a 32x32x4 image. White pixels are transparent. */ 811 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp"); 812 if (filename) { 813 SDL_Surface *image = SDL_LoadBMP(filename); 814 if (image) { 815 uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255); 816 SDL_SetColorKey(image, SDL_TRUE, colorkey); 817 SDL_SetWindowIcon(sdl2_console[0].real_window, image); 818 } 819 g_free(filename); 820 } 821 822 if (full_screen) { 823 gui_fullscreen = 1; 824 sdl_grab_start(0); 825 } 826 827 mouse_mode_notifier.notify = sdl_mouse_mode_change; 828 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 829 830 gui_grab = 0; 831 832 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 833 sdl_cursor_normal = SDL_GetCursor(); 834 835 atexit(sdl_cleanup); 836 } 837