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 static void sdl_update_caption(struct sdl2_console *scon); 53 54 static struct sdl2_console *get_scon_from_window(uint32_t window_id) 55 { 56 int i; 57 for (i = 0; i < sdl2_num_outputs; i++) { 58 if (sdl2_console[i].real_window == SDL_GetWindowFromID(window_id)) { 59 return &sdl2_console[i]; 60 } 61 } 62 return NULL; 63 } 64 65 void sdl2_window_create(struct sdl2_console *scon) 66 { 67 int flags = 0; 68 69 if (!scon->surface) { 70 return; 71 } 72 assert(!scon->real_window); 73 74 if (gui_fullscreen) { 75 flags |= SDL_WINDOW_FULLSCREEN_DESKTOP; 76 } else { 77 flags |= SDL_WINDOW_RESIZABLE; 78 } 79 if (scon->hidden) { 80 flags |= SDL_WINDOW_HIDDEN; 81 } 82 83 scon->real_window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, 84 SDL_WINDOWPOS_UNDEFINED, 85 surface_width(scon->surface), 86 surface_height(scon->surface), 87 flags); 88 scon->real_renderer = SDL_CreateRenderer(scon->real_window, -1, 0); 89 if (scon->opengl) { 90 scon->winctx = SDL_GL_GetCurrentContext(); 91 } 92 sdl_update_caption(scon); 93 } 94 95 void sdl2_window_destroy(struct sdl2_console *scon) 96 { 97 if (!scon->real_window) { 98 return; 99 } 100 101 SDL_DestroyRenderer(scon->real_renderer); 102 scon->real_renderer = NULL; 103 SDL_DestroyWindow(scon->real_window); 104 scon->real_window = NULL; 105 } 106 107 void sdl2_window_resize(struct sdl2_console *scon) 108 { 109 if (!scon->real_window) { 110 return; 111 } 112 113 SDL_SetWindowSize(scon->real_window, 114 surface_width(scon->surface), 115 surface_height(scon->surface)); 116 } 117 118 static void sdl2_redraw(struct sdl2_console *scon) 119 { 120 if (scon->opengl) { 121 #ifdef CONFIG_OPENGL 122 sdl2_gl_redraw(scon); 123 #endif 124 } else { 125 sdl2_2d_redraw(scon); 126 } 127 } 128 129 static void sdl_update_caption(struct sdl2_console *scon) 130 { 131 char win_title[1024]; 132 char icon_title[1024]; 133 const char *status = ""; 134 135 if (!runstate_is_running()) { 136 status = " [Stopped]"; 137 } else if (gui_grab) { 138 if (alt_grab) { 139 status = " - Press Ctrl-Alt-Shift to exit grab"; 140 } else if (ctrl_grab) { 141 status = " - Press Right-Ctrl to exit grab"; 142 } else { 143 status = " - Press Ctrl-Alt to exit grab"; 144 } 145 } 146 147 if (qemu_name) { 148 snprintf(win_title, sizeof(win_title), "QEMU (%s-%d)%s", qemu_name, 149 scon->idx, status); 150 snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name); 151 } else { 152 snprintf(win_title, sizeof(win_title), "QEMU%s", status); 153 snprintf(icon_title, sizeof(icon_title), "QEMU"); 154 } 155 156 if (scon->real_window) { 157 SDL_SetWindowTitle(scon->real_window, win_title); 158 } 159 } 160 161 static void sdl_hide_cursor(void) 162 { 163 if (!cursor_hide) { 164 return; 165 } 166 167 if (qemu_input_is_absolute()) { 168 SDL_ShowCursor(1); 169 SDL_SetCursor(sdl_cursor_hidden); 170 } else { 171 SDL_SetRelativeMouseMode(SDL_TRUE); 172 } 173 } 174 175 static void sdl_show_cursor(void) 176 { 177 if (!cursor_hide) { 178 return; 179 } 180 181 if (!qemu_input_is_absolute()) { 182 SDL_SetRelativeMouseMode(SDL_FALSE); 183 SDL_ShowCursor(1); 184 if (guest_cursor && 185 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 186 SDL_SetCursor(guest_sprite); 187 } else { 188 SDL_SetCursor(sdl_cursor_normal); 189 } 190 } 191 } 192 193 static void sdl_grab_start(struct sdl2_console *scon) 194 { 195 QemuConsole *con = scon ? scon->dcl.con : NULL; 196 197 if (!con || !qemu_console_is_graphic(con)) { 198 return; 199 } 200 /* 201 * If the application is not active, do not try to enter grab state. This 202 * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the 203 * application (SDL bug). 204 */ 205 if (!(SDL_GetWindowFlags(scon->real_window) & SDL_WINDOW_INPUT_FOCUS)) { 206 return; 207 } 208 if (guest_cursor) { 209 SDL_SetCursor(guest_sprite); 210 if (!qemu_input_is_absolute() && !absolute_enabled) { 211 SDL_WarpMouseInWindow(scon->real_window, guest_x, guest_y); 212 } 213 } else { 214 sdl_hide_cursor(); 215 } 216 SDL_SetWindowGrab(scon->real_window, SDL_TRUE); 217 gui_grab = 1; 218 sdl_update_caption(scon); 219 } 220 221 static void sdl_grab_end(struct sdl2_console *scon) 222 { 223 SDL_SetWindowGrab(scon->real_window, SDL_FALSE); 224 gui_grab = 0; 225 sdl_show_cursor(); 226 sdl_update_caption(scon); 227 } 228 229 static void absolute_mouse_grab(struct sdl2_console *scon) 230 { 231 int mouse_x, mouse_y; 232 int scr_w, scr_h; 233 SDL_GetMouseState(&mouse_x, &mouse_y); 234 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 235 if (mouse_x > 0 && mouse_x < scr_w - 1 && 236 mouse_y > 0 && mouse_y < scr_h - 1) { 237 sdl_grab_start(scon); 238 } 239 } 240 241 static void sdl_mouse_mode_change(Notifier *notify, void *data) 242 { 243 if (qemu_input_is_absolute()) { 244 if (!absolute_enabled) { 245 absolute_enabled = 1; 246 absolute_mouse_grab(&sdl2_console[0]); 247 } 248 } else if (absolute_enabled) { 249 if (!gui_fullscreen) { 250 sdl_grab_end(&sdl2_console[0]); 251 } 252 absolute_enabled = 0; 253 } 254 } 255 256 static void sdl_send_mouse_event(struct sdl2_console *scon, int dx, int dy, 257 int x, int y, int state) 258 { 259 static uint32_t bmap[INPUT_BUTTON_MAX] = { 260 [INPUT_BUTTON_LEFT] = SDL_BUTTON(SDL_BUTTON_LEFT), 261 [INPUT_BUTTON_MIDDLE] = SDL_BUTTON(SDL_BUTTON_MIDDLE), 262 [INPUT_BUTTON_RIGHT] = SDL_BUTTON(SDL_BUTTON_RIGHT), 263 }; 264 static uint32_t prev_state; 265 266 if (prev_state != state) { 267 qemu_input_update_buttons(scon->dcl.con, bmap, prev_state, state); 268 prev_state = state; 269 } 270 271 if (qemu_input_is_absolute()) { 272 int scr_w, scr_h; 273 int max_w = 0, max_h = 0; 274 int off_x = 0, off_y = 0; 275 int cur_off_x = 0, cur_off_y = 0; 276 int i; 277 278 for (i = 0; i < sdl2_num_outputs; i++) { 279 struct sdl2_console *thiscon = &sdl2_console[i]; 280 if (thiscon->real_window && thiscon->surface) { 281 SDL_GetWindowSize(thiscon->real_window, &scr_w, &scr_h); 282 cur_off_x = thiscon->x; 283 cur_off_y = thiscon->y; 284 if (scr_w + cur_off_x > max_w) { 285 max_w = scr_w + cur_off_x; 286 } 287 if (scr_h + cur_off_y > max_h) { 288 max_h = scr_h + cur_off_y; 289 } 290 if (i == scon->idx) { 291 off_x = cur_off_x; 292 off_y = cur_off_y; 293 } 294 } 295 } 296 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_X, off_x + x, max_w); 297 qemu_input_queue_abs(scon->dcl.con, INPUT_AXIS_Y, off_y + y, max_h); 298 } else { 299 if (guest_cursor) { 300 x -= guest_x; 301 y -= guest_y; 302 guest_x += x; 303 guest_y += y; 304 dx = x; 305 dy = y; 306 } 307 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_X, dx); 308 qemu_input_queue_rel(scon->dcl.con, INPUT_AXIS_Y, dy); 309 } 310 qemu_input_event_sync(); 311 } 312 313 static void toggle_full_screen(struct sdl2_console *scon) 314 { 315 gui_fullscreen = !gui_fullscreen; 316 if (gui_fullscreen) { 317 SDL_SetWindowFullscreen(scon->real_window, 318 SDL_WINDOW_FULLSCREEN_DESKTOP); 319 gui_saved_grab = gui_grab; 320 sdl_grab_start(scon); 321 } else { 322 if (!gui_saved_grab) { 323 sdl_grab_end(scon); 324 } 325 SDL_SetWindowFullscreen(scon->real_window, 0); 326 } 327 sdl2_redraw(scon); 328 } 329 330 static void handle_keydown(SDL_Event *ev) 331 { 332 int mod_state, win; 333 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 334 335 if (alt_grab) { 336 mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) == 337 (gui_grab_code | KMOD_LSHIFT); 338 } else if (ctrl_grab) { 339 mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL; 340 } else { 341 mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code; 342 } 343 gui_key_modifier_pressed = mod_state; 344 345 if (gui_key_modifier_pressed) { 346 switch (ev->key.keysym.scancode) { 347 case SDL_SCANCODE_2: 348 case SDL_SCANCODE_3: 349 case SDL_SCANCODE_4: 350 case SDL_SCANCODE_5: 351 case SDL_SCANCODE_6: 352 case SDL_SCANCODE_7: 353 case SDL_SCANCODE_8: 354 case SDL_SCANCODE_9: 355 win = ev->key.keysym.scancode - SDL_SCANCODE_1; 356 if (win < sdl2_num_outputs) { 357 sdl2_console[win].hidden = !sdl2_console[win].hidden; 358 if (sdl2_console[win].real_window) { 359 if (sdl2_console[win].hidden) { 360 SDL_HideWindow(sdl2_console[win].real_window); 361 } else { 362 SDL_ShowWindow(sdl2_console[win].real_window); 363 } 364 } 365 gui_keysym = 1; 366 } 367 break; 368 case SDL_SCANCODE_F: 369 toggle_full_screen(scon); 370 gui_keysym = 1; 371 break; 372 case SDL_SCANCODE_U: 373 sdl2_window_destroy(scon); 374 sdl2_window_create(scon); 375 if (!scon->opengl) { 376 /* re-create scon->texture */ 377 sdl2_2d_switch(&scon->dcl, scon->surface); 378 } 379 gui_keysym = 1; 380 break; 381 #if 0 382 case SDL_SCANCODE_KP_PLUS: 383 case SDL_SCANCODE_KP_MINUS: 384 if (!gui_fullscreen) { 385 int scr_w, scr_h; 386 int width, height; 387 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 388 389 width = MAX(scr_w + (ev->key.keysym.scancode == 390 SDL_SCANCODE_KP_PLUS ? 50 : -50), 391 160); 392 height = (surface_height(scon->surface) * width) / 393 surface_width(scon->surface); 394 fprintf(stderr, "%s: scale to %dx%d\n", 395 __func__, width, height); 396 sdl_scale(scon, width, height); 397 sdl2_redraw(scon); 398 gui_keysym = 1; 399 } 400 #endif 401 default: 402 break; 403 } 404 } 405 if (!gui_keysym) { 406 sdl2_process_key(scon, &ev->key); 407 } 408 } 409 410 static void handle_keyup(SDL_Event *ev) 411 { 412 int mod_state; 413 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 414 415 if (!alt_grab) { 416 mod_state = (ev->key.keysym.mod & gui_grab_code); 417 } else { 418 mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT)); 419 } 420 if (!mod_state && gui_key_modifier_pressed) { 421 gui_key_modifier_pressed = 0; 422 if (gui_keysym == 0) { 423 /* exit/enter grab if pressing Ctrl-Alt */ 424 if (!gui_grab) { 425 sdl_grab_start(scon); 426 } else if (!gui_fullscreen) { 427 sdl_grab_end(scon); 428 } 429 /* SDL does not send back all the modifiers key, so we must 430 * correct it. */ 431 sdl2_reset_keys(scon); 432 return; 433 } 434 gui_keysym = 0; 435 } 436 if (!gui_keysym) { 437 sdl2_process_key(scon, &ev->key); 438 } 439 } 440 441 static void handle_textinput(SDL_Event *ev) 442 { 443 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 444 QemuConsole *con = scon ? scon->dcl.con : NULL; 445 446 if (qemu_console_is_graphic(con)) { 447 return; 448 } 449 kbd_put_string_console(con, ev->text.text, strlen(ev->text.text)); 450 } 451 452 static void handle_mousemotion(SDL_Event *ev) 453 { 454 int max_x, max_y; 455 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 456 457 if (qemu_input_is_absolute() || absolute_enabled) { 458 int scr_w, scr_h; 459 SDL_GetWindowSize(scon->real_window, &scr_w, &scr_h); 460 max_x = scr_w - 1; 461 max_y = scr_h - 1; 462 if (gui_grab && (ev->motion.x == 0 || ev->motion.y == 0 || 463 ev->motion.x == max_x || ev->motion.y == max_y)) { 464 sdl_grab_end(scon); 465 } 466 if (!gui_grab && 467 (ev->motion.x > 0 && ev->motion.x < max_x && 468 ev->motion.y > 0 && ev->motion.y < max_y)) { 469 sdl_grab_start(scon); 470 } 471 } 472 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 473 sdl_send_mouse_event(scon, ev->motion.xrel, ev->motion.yrel, 474 ev->motion.x, ev->motion.y, ev->motion.state); 475 } 476 } 477 478 static void handle_mousebutton(SDL_Event *ev) 479 { 480 int buttonstate = SDL_GetMouseState(NULL, NULL); 481 SDL_MouseButtonEvent *bev; 482 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 483 484 bev = &ev->button; 485 if (!gui_grab && !qemu_input_is_absolute()) { 486 if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { 487 /* start grabbing all events */ 488 sdl_grab_start(scon); 489 } 490 } else { 491 if (ev->type == SDL_MOUSEBUTTONDOWN) { 492 buttonstate |= SDL_BUTTON(bev->button); 493 } else { 494 buttonstate &= ~SDL_BUTTON(bev->button); 495 } 496 sdl_send_mouse_event(scon, 0, 0, bev->x, bev->y, buttonstate); 497 } 498 } 499 500 static void handle_mousewheel(SDL_Event *ev) 501 { 502 struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); 503 SDL_MouseWheelEvent *wev = &ev->wheel; 504 InputButton btn; 505 506 if (wev->y > 0) { 507 btn = INPUT_BUTTON_WHEEL_UP; 508 } else if (wev->y < 0) { 509 btn = INPUT_BUTTON_WHEEL_DOWN; 510 } else { 511 return; 512 } 513 514 qemu_input_queue_btn(scon->dcl.con, btn, true); 515 qemu_input_event_sync(); 516 qemu_input_queue_btn(scon->dcl.con, btn, false); 517 qemu_input_event_sync(); 518 } 519 520 static void handle_windowevent(SDL_Event *ev) 521 { 522 struct sdl2_console *scon = get_scon_from_window(ev->window.windowID); 523 524 if (!scon) { 525 return; 526 } 527 528 switch (ev->window.event) { 529 case SDL_WINDOWEVENT_RESIZED: 530 { 531 QemuUIInfo info; 532 memset(&info, 0, sizeof(info)); 533 info.width = ev->window.data1; 534 info.height = ev->window.data2; 535 dpy_set_ui_info(scon->dcl.con, &info); 536 } 537 sdl2_redraw(scon); 538 break; 539 case SDL_WINDOWEVENT_EXPOSED: 540 sdl2_redraw(scon); 541 break; 542 case SDL_WINDOWEVENT_FOCUS_GAINED: 543 case SDL_WINDOWEVENT_ENTER: 544 if (!gui_grab && (qemu_input_is_absolute() || absolute_enabled)) { 545 absolute_mouse_grab(scon); 546 } 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 (!no_quit) { 561 no_shutdown = 0; 562 qemu_system_shutdown_request(); 563 } 564 break; 565 case SDL_WINDOWEVENT_SHOWN: 566 if (scon->hidden) { 567 SDL_HideWindow(scon->real_window); 568 } 569 break; 570 case SDL_WINDOWEVENT_HIDDEN: 571 if (!scon->hidden) { 572 SDL_ShowWindow(scon->real_window); 573 } 574 break; 575 } 576 } 577 578 void sdl2_poll_events(struct sdl2_console *scon) 579 { 580 SDL_Event ev1, *ev = &ev1; 581 582 if (scon->last_vm_running != runstate_is_running()) { 583 scon->last_vm_running = runstate_is_running(); 584 sdl_update_caption(scon); 585 } 586 587 while (SDL_PollEvent(ev)) { 588 switch (ev->type) { 589 case SDL_KEYDOWN: 590 handle_keydown(ev); 591 break; 592 case SDL_KEYUP: 593 handle_keyup(ev); 594 break; 595 case SDL_TEXTINPUT: 596 handle_textinput(ev); 597 break; 598 case SDL_QUIT: 599 if (!no_quit) { 600 no_shutdown = 0; 601 qemu_system_shutdown_request(); 602 } 603 break; 604 case SDL_MOUSEMOTION: 605 handle_mousemotion(ev); 606 break; 607 case SDL_MOUSEBUTTONDOWN: 608 case SDL_MOUSEBUTTONUP: 609 handle_mousebutton(ev); 610 break; 611 case SDL_MOUSEWHEEL: 612 handle_mousewheel(ev); 613 break; 614 case SDL_WINDOWEVENT: 615 handle_windowevent(ev); 616 break; 617 default: 618 break; 619 } 620 } 621 } 622 623 static void sdl_mouse_warp(DisplayChangeListener *dcl, 624 int x, int y, int on) 625 { 626 struct sdl2_console *scon = container_of(dcl, struct sdl2_console, dcl); 627 if (on) { 628 if (!guest_cursor) { 629 sdl_show_cursor(); 630 } 631 if (gui_grab || qemu_input_is_absolute() || absolute_enabled) { 632 SDL_SetCursor(guest_sprite); 633 if (!qemu_input_is_absolute() && !absolute_enabled) { 634 SDL_WarpMouseInWindow(scon->real_window, x, y); 635 } 636 } 637 } else if (gui_grab) { 638 sdl_hide_cursor(); 639 } 640 guest_cursor = on; 641 guest_x = x, guest_y = y; 642 } 643 644 static void sdl_mouse_define(DisplayChangeListener *dcl, 645 QEMUCursor *c) 646 { 647 648 if (guest_sprite) { 649 SDL_FreeCursor(guest_sprite); 650 } 651 652 if (guest_sprite_surface) { 653 SDL_FreeSurface(guest_sprite_surface); 654 } 655 656 guest_sprite_surface = 657 SDL_CreateRGBSurfaceFrom(c->data, c->width, c->height, 32, c->width * 4, 658 0xff0000, 0x00ff00, 0xff, 0xff000000); 659 660 if (!guest_sprite_surface) { 661 fprintf(stderr, "Failed to make rgb surface from %p\n", c); 662 return; 663 } 664 guest_sprite = SDL_CreateColorCursor(guest_sprite_surface, 665 c->hot_x, c->hot_y); 666 if (!guest_sprite) { 667 fprintf(stderr, "Failed to make color cursor from %p\n", c); 668 return; 669 } 670 if (guest_cursor && 671 (gui_grab || qemu_input_is_absolute() || absolute_enabled)) { 672 SDL_SetCursor(guest_sprite); 673 } 674 } 675 676 static void sdl_cleanup(void) 677 { 678 if (guest_sprite) { 679 SDL_FreeCursor(guest_sprite); 680 } 681 SDL_QuitSubSystem(SDL_INIT_VIDEO); 682 } 683 684 static const DisplayChangeListenerOps dcl_2d_ops = { 685 .dpy_name = "sdl2-2d", 686 .dpy_gfx_update = sdl2_2d_update, 687 .dpy_gfx_switch = sdl2_2d_switch, 688 .dpy_gfx_check_format = sdl2_2d_check_format, 689 .dpy_refresh = sdl2_2d_refresh, 690 .dpy_mouse_set = sdl_mouse_warp, 691 .dpy_cursor_define = sdl_mouse_define, 692 }; 693 694 #ifdef CONFIG_OPENGL 695 static const DisplayChangeListenerOps dcl_gl_ops = { 696 .dpy_name = "sdl2-gl", 697 .dpy_gfx_update = sdl2_gl_update, 698 .dpy_gfx_switch = sdl2_gl_switch, 699 .dpy_gfx_check_format = console_gl_check_format, 700 .dpy_refresh = sdl2_gl_refresh, 701 .dpy_mouse_set = sdl_mouse_warp, 702 .dpy_cursor_define = sdl_mouse_define, 703 }; 704 #endif 705 706 void sdl_display_early_init(int opengl) 707 { 708 switch (opengl) { 709 case -1: /* default */ 710 case 0: /* off */ 711 break; 712 case 1: /* on */ 713 #ifdef CONFIG_OPENGL 714 display_opengl = 1; 715 #endif 716 break; 717 default: 718 g_assert_not_reached(); 719 break; 720 } 721 } 722 723 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame) 724 { 725 int flags; 726 uint8_t data = 0; 727 char *filename; 728 int i; 729 730 if (no_frame) { 731 gui_noframe = 1; 732 } 733 734 #ifdef __linux__ 735 /* on Linux, SDL may use fbcon|directfb|svgalib when run without 736 * accessible $DISPLAY to open X11 window. This is often the case 737 * when qemu is run using sudo. But in this case, and when actually 738 * run in X11 environment, SDL fights with X11 for the video card, 739 * making current display unavailable, often until reboot. 740 * So make x11 the default SDL video driver if this variable is unset. 741 * This is a bit hackish but saves us from bigger problem. 742 * Maybe it's a good idea to fix this in SDL instead. 743 */ 744 setenv("SDL_VIDEODRIVER", "x11", 0); 745 #endif 746 747 flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; 748 if (SDL_Init(flags)) { 749 fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", 750 SDL_GetError()); 751 exit(1); 752 } 753 SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); 754 755 for (i = 0;; i++) { 756 QemuConsole *con = qemu_console_lookup_by_index(i); 757 if (!con) { 758 break; 759 } 760 } 761 sdl2_num_outputs = i; 762 sdl2_console = g_new0(struct sdl2_console, sdl2_num_outputs); 763 for (i = 0; i < sdl2_num_outputs; i++) { 764 QemuConsole *con = qemu_console_lookup_by_index(i); 765 if (!qemu_console_is_graphic(con)) { 766 sdl2_console[i].hidden = true; 767 } 768 sdl2_console[i].idx = i; 769 #ifdef CONFIG_OPENGL 770 sdl2_console[i].opengl = display_opengl; 771 sdl2_console[i].dcl.ops = display_opengl ? &dcl_gl_ops : &dcl_2d_ops; 772 #else 773 sdl2_console[i].opengl = 0; 774 sdl2_console[i].dcl.ops = &dcl_2d_ops; 775 #endif 776 sdl2_console[i].dcl.con = con; 777 register_displaychangelistener(&sdl2_console[i].dcl); 778 } 779 780 /* Load a 32x32x4 image. White pixels are transparent. */ 781 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp"); 782 if (filename) { 783 SDL_Surface *image = SDL_LoadBMP(filename); 784 if (image) { 785 uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255); 786 SDL_SetColorKey(image, SDL_TRUE, colorkey); 787 SDL_SetWindowIcon(sdl2_console[0].real_window, image); 788 } 789 g_free(filename); 790 } 791 792 if (full_screen) { 793 gui_fullscreen = 1; 794 sdl_grab_start(0); 795 } 796 797 mouse_mode_notifier.notify = sdl_mouse_mode_change; 798 qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); 799 800 gui_grab = 0; 801 802 sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); 803 sdl_cursor_normal = SDL_GetCursor(); 804 805 atexit(sdl_cleanup); 806 } 807