sdl.c

   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 #include "qemu-common.h"
  25 #include "console.h"
  26 #include "sysemu.h"
  27
  28 #include <SDL.h>
  29
  30 #ifndef _WIN32
  31 #include <signal.h>
  32 #endif
  33
  34 static DisplayChangeListener *dcl;
  35 static SDL_Surface *real_screen;
  36 static SDL_Surface *guest_screen = NULL;
  37 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
  38 static int last_vm_running;
  39 static int gui_saved_grab;
  40 static int gui_fullscreen;
  41 static int gui_noframe;
  42 static int gui_key_modifier_pressed;
  43 static int gui_keysym;
  44 static int gui_fullscreen_initial_grab;
  45 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
  46 static uint8_t modifiers_state[256];
  47 static int width, height;
  48 static SDL_Cursor *sdl_cursor_normal;
  49 static SDL_Cursor *sdl_cursor_hidden;
  50 static int absolute_enabled = 0;
  51 static int guest_cursor = 0;
  52 static int guest_x, guest_y;
  53 static SDL_Cursor *guest_sprite = 0;
  54
  55 static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
  56 {
  57     SDL_Rect rec;
  58     rec.x = x;
  59     rec.y = y;
  60     rec.w = w;
  61     rec.h = h;
  62     //    printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
  63
  64     SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
  65     SDL_UpdateRect(real_screen, x, y, w, h);
  66 }
  67
  68 static void sdl_setdata(DisplayState *ds)
  69 {
  70     SDL_Rect rec;
  71     rec.x = 0;
  72     rec.y = 0;
  73     rec.w = real_screen->w;
  74     rec.h = real_screen->h;
  75
  76     if (guest_screen != NULL) SDL_FreeSurface(guest_screen);
  77
  78     guest_screen = SDL_CreateRGBSurfaceFrom(ds_get_data(ds), ds_get_width(ds), ds_get_height(ds),
  79                                             ds_get_bits_per_pixel(ds), ds_get_linesize(ds),
  80                                             ds->surface->pf.rmask, ds->surface->pf.gmask,
  81                                             ds->surface->pf.bmask, ds->surface->pf.amask);
  82 }
  83
  84 static void sdl_resize(DisplayState *ds)
  85 {
  86     int flags;
  87
  88     //    printf("resizing to %d %d\n", w, h);
  89
  90     flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
  91     if (gui_fullscreen)
  92         flags |= SDL_FULLSCREEN;
  93     if (gui_noframe)
  94         flags |= SDL_NOFRAME;
  95
  96     width = ds_get_width(ds);
  97     height = ds_get_height(ds);
  98     real_screen = SDL_SetVideoMode(width, height, 0, flags);
  99     if (!real_screen) {
 100         fprintf(stderr, "Could not open SDL display\n");
 101         exit(1);
 102     }
 103
 104     sdl_setdata(ds);
 105 }
 106
 107 /* generic keyboard conversion */
 108
 109 #include "sdl_keysym.h"
 110 #include "keymaps.c"
 111
 112 static kbd_layout_t *kbd_layout = NULL;
 113
 114 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
 115 {
 116     int keysym;
 117     /* workaround for X11+SDL bug with AltGR */
 118     keysym = ev->keysym.sym;
 119     if (keysym == 0 && ev->keysym.scancode == 113)
 120         keysym = SDLK_MODE;
 121     /* For Japanese key '\' and '|' */
 122     if (keysym == 92 && ev->keysym.scancode == 133) {
 123         keysym = 0xa5;
 124     }
 125     return keysym2scancode(kbd_layout, keysym);
 126 }
 127
 128 /* specific keyboard conversions from scan codes */
 129
 130 #if defined(_WIN32)
 131
 132 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
 133 {
 134     return ev->keysym.scancode;
 135 }
 136
 137 #else
 138
 139 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
 140 {
 141     int keycode;
 142
 143     keycode = ev->keysym.scancode;
 144
 145     if (keycode < 9) {
 146         keycode = 0;
 147     } else if (keycode < 97) {
 148         keycode -= 8; /* just an offset */
 149     } else if (keycode < 212) {
 150         /* use conversion table */
 151         keycode = _translate_keycode(keycode - 97);
 152     } else {
 153         keycode = 0;
 154     }
 155     return keycode;
 156 }
 157
 158 #endif
 159
 160 static void reset_keys(void)
 161 {
 162     int i;
 163     for(i = 0; i < 256; i++) {
 164         if (modifiers_state[i]) {
 165             if (i & 0x80)
 166                 kbd_put_keycode(0xe0);
 167             kbd_put_keycode(i | 0x80);
 168             modifiers_state[i] = 0;
 169         }
 170     }
 171 }
 172
 173 static void sdl_process_key(SDL_KeyboardEvent *ev)
 174 {
 175     int keycode, v;
 176
 177     if (ev->keysym.sym == SDLK_PAUSE) {
 178         /* specific case */
 179         v = 0;
 180         if (ev->type == SDL_KEYUP)
 181             v |= 0x80;
 182         kbd_put_keycode(0xe1);
 183         kbd_put_keycode(0x1d | v);
 184         kbd_put_keycode(0x45 | v);
 185         return;
 186     }
 187
 188     if (kbd_layout) {
 189         keycode = sdl_keyevent_to_keycode_generic(ev);
 190     } else {
 191         keycode = sdl_keyevent_to_keycode(ev);
 192     }
 193
 194     switch(keycode) {
 195     case 0x00:
 196         /* sent when leaving window: reset the modifiers state */
 197         reset_keys();
 198         return;
 199     case 0x2a:                          /* Left Shift */
 200     case 0x36:                          /* Right Shift */
 201     case 0x1d:                          /* Left CTRL */
 202     case 0x9d:                          /* Right CTRL */
 203     case 0x38:                          /* Left ALT */
 204     case 0xb8:                         /* Right ALT */
 205         if (ev->type == SDL_KEYUP)
 206             modifiers_state[keycode] = 0;
 207         else
 208             modifiers_state[keycode] = 1;
 209         break;
 210     case 0x45: /* num lock */
 211     case 0x3a: /* caps lock */
 212         /* SDL does not send the key up event, so we generate it */
 213         kbd_put_keycode(keycode);
 214         kbd_put_keycode(keycode | 0x80);
 215         return;
 216     }
 217
 218     /* now send the key code */
 219     if (keycode & 0x80)
 220         kbd_put_keycode(0xe0);
 221     if (ev->type == SDL_KEYUP)
 222         kbd_put_keycode(keycode | 0x80);
 223     else
 224         kbd_put_keycode(keycode & 0x7f);
 225 }
 226
 227 static void sdl_update_caption(void)
 228 {
 229     char buf[1024];
 230     const char *status = "";
 231
 232     if (!vm_running)
 233         status = " [Stopped]";
 234     else if (gui_grab) {
 235         if (!alt_grab)
 236             status = " - Press Ctrl-Alt to exit grab";
 237         else
 238             status = " - Press Ctrl-Alt-Shift to exit grab";
 239     }
 240
 241     if (qemu_name)
 242         snprintf(buf, sizeof(buf), "QEMU (%s)%s", qemu_name, status);
 243     else
 244         snprintf(buf, sizeof(buf), "QEMU%s", status);
 245
 246     SDL_WM_SetCaption(buf, "QEMU");
 247 }
 248
 249 static void sdl_hide_cursor(void)
 250 {
 251     if (!cursor_hide)
 252         return;
 253
 254     if (kbd_mouse_is_absolute()) {
 255         SDL_ShowCursor(1);
 256         SDL_SetCursor(sdl_cursor_hidden);
 257     } else {
 258         SDL_ShowCursor(0);
 259     }
 260 }
 261
 262 static void sdl_show_cursor(void)
 263 {
 264     if (!cursor_hide)
 265         return;
 266
 267     if (!kbd_mouse_is_absolute()) {
 268         SDL_ShowCursor(1);
 269         if (guest_cursor &&
 270                 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
 271             SDL_SetCursor(guest_sprite);
 272         else
 273             SDL_SetCursor(sdl_cursor_normal);
 274     }
 275 }
 276
 277 static void sdl_grab_start(void)
 278 {
 279     if (guest_cursor) {
 280         SDL_SetCursor(guest_sprite);
 281         if (!kbd_mouse_is_absolute() && !absolute_enabled)
 282             SDL_WarpMouse(guest_x, guest_y);
 283     } else
 284         sdl_hide_cursor();
 285
 286     if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
 287         gui_grab = 1;
 288         sdl_update_caption();
 289     } else
 290         sdl_show_cursor();
 291 }
 292
 293 static void sdl_grab_end(void)
 294 {
 295     SDL_WM_GrabInput(SDL_GRAB_OFF);
 296     gui_grab = 0;
 297     sdl_show_cursor();
 298     sdl_update_caption();
 299 }
 300
 301 static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
 302 {
 303     int buttons;
 304     buttons = 0;
 305     if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
 306         buttons |= MOUSE_EVENT_LBUTTON;
 307     if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
 308         buttons |= MOUSE_EVENT_RBUTTON;
 309     if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
 310         buttons |= MOUSE_EVENT_MBUTTON;
 311
 312     if (kbd_mouse_is_absolute()) {
 313         if (!absolute_enabled) {
 314             sdl_hide_cursor();
 315             if (gui_grab) {
 316                 sdl_grab_end();
 317             }
 318             absolute_enabled = 1;
 319         }
 320
 321        dx = x * 0x7FFF / (width - 1);
 322        dy = y * 0x7FFF / (height - 1);
 323     } else if (absolute_enabled) {
 324         sdl_show_cursor();
 325         absolute_enabled = 0;
 326     } else if (guest_cursor) {
 327         x -= guest_x;
 328         y -= guest_y;
 329         guest_x += x;
 330         guest_y += y;
 331         dx = x;
 332         dy = y;
 333     }
 334
 335     kbd_mouse_event(dx, dy, dz, buttons);
 336 }
 337
 338 static void toggle_full_screen(DisplayState *ds)
 339 {
 340     gui_fullscreen = !gui_fullscreen;
 341     sdl_resize(ds);
 342     if (gui_fullscreen) {
 343         gui_saved_grab = gui_grab;
 344         sdl_grab_start();
 345     } else {
 346         if (!gui_saved_grab)
 347             sdl_grab_end();
 348     }
 349     vga_hw_invalidate();
 350     vga_hw_update();
 351 }
 352
 353 static void sdl_refresh(DisplayState *ds)
 354 {
 355     SDL_Event ev1, *ev = &ev1;
 356     int mod_state;
 357     int buttonstate = SDL_GetMouseState(NULL, NULL);
 358
 359     if (last_vm_running != vm_running) {
 360         last_vm_running = vm_running;
 361         sdl_update_caption();
 362     }
 363
 364     vga_hw_update();
 365     SDL_EnableUNICODE(!is_graphic_console());
 366
 367     while (SDL_PollEvent(ev)) {
 368         switch (ev->type) {
 369         case SDL_VIDEOEXPOSE:
 370             sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
 371             break;
 372         case SDL_KEYDOWN:
 373         case SDL_KEYUP:
 374             if (ev->type == SDL_KEYDOWN) {
 375                 if (!alt_grab) {
 376                     mod_state = (SDL_GetModState() & gui_grab_code) ==
 377                                 gui_grab_code;
 378                 } else {
 379                     mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
 380                                 (gui_grab_code | KMOD_LSHIFT);
 381                 }
 382                 gui_key_modifier_pressed = mod_state;
 383                 if (gui_key_modifier_pressed) {
 384                     int keycode;
 385                     keycode = sdl_keyevent_to_keycode(&ev->key);
 386                     switch(keycode) {
 387                     case 0x21: /* 'f' key on US keyboard */
 388                         toggle_full_screen(ds);
 389                         gui_keysym = 1;
 390                         break;
 391                     case 0x02 ... 0x0a: /* '1' to '9' keys */
 392                         /* Reset the modifiers sent to the current console */
 393                         reset_keys();
 394                         console_select(keycode - 0x02);
 395                         if (!is_graphic_console()) {
 396                             /* display grab if going to a text console */
 397                             if (gui_grab)
 398                                 sdl_grab_end();
 399                         }
 400                         gui_keysym = 1;
 401                         break;
 402                     default:
 403                         break;
 404                     }
 405                 } else if (!is_graphic_console()) {
 406                     int keysym;
 407                     keysym = 0;
 408                     if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
 409                         switch(ev->key.keysym.sym) {
 410                         case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
 411                         case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
 412                         case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
 413                         case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
 414                         case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
 415                         case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
 416                         case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
 417                         case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
 418                         default: break;
 419                         }
 420                     } else {
 421                         switch(ev->key.keysym.sym) {
 422                         case SDLK_UP: keysym = QEMU_KEY_UP; break;
 423                         case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
 424                         case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
 425                         case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
 426                         case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
 427                         case SDLK_END: keysym = QEMU_KEY_END; break;
 428                         case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
 429                         case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
 430                         case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;
 431                         case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
 432                         default: break;
 433                         }
 434                     }
 435                     if (keysym) {
 436                         kbd_put_keysym(keysym);
 437                     } else if (ev->key.keysym.unicode != 0) {
 438                         kbd_put_keysym(ev->key.keysym.unicode);
 439                     }
 440                 }
 441             } else if (ev->type == SDL_KEYUP) {
 442                 if (!alt_grab) {
 443                     mod_state = (ev->key.keysym.mod & gui_grab_code);
 444                 } else {
 445                     mod_state = (ev->key.keysym.mod &
 446                                  (gui_grab_code | KMOD_LSHIFT));
 447                 }
 448                 if (!mod_state) {
 449                     if (gui_key_modifier_pressed) {
 450                         gui_key_modifier_pressed = 0;
 451                         if (gui_keysym == 0) {
 452                             /* exit/enter grab if pressing Ctrl-Alt */
 453                             if (!gui_grab) {
 454                                 /* if the application is not active,
 455                                    do not try to enter grab state. It
 456                                    prevents
 457                                    'SDL_WM_GrabInput(SDL_GRAB_ON)'
 458                                    from blocking all the application
 459                                    (SDL bug). */
 460                                 if (SDL_GetAppState() & SDL_APPACTIVE)
 461                                     sdl_grab_start();
 462                             } else {
 463                                 sdl_grab_end();
 464                             }
 465                             /* SDL does not send back all the
 466                                modifiers key, so we must correct it */
 467                             reset_keys();
 468                             break;
 469                         }
 470                         gui_keysym = 0;
 471                     }
 472                 }
 473             }
 474             if (is_graphic_console() && !gui_keysym)
 475                 sdl_process_key(&ev->key);
 476             break;
 477         case SDL_QUIT:
 478             if (!no_quit)
 479                 qemu_system_shutdown_request();
 480             break;
 481         case SDL_MOUSEMOTION:
 482             if (gui_grab || kbd_mouse_is_absolute() ||
 483                 absolute_enabled) {
 484                 sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
 485                        ev->motion.x, ev->motion.y, ev->motion.state);
 486             }
 487             break;
 488         case SDL_MOUSEBUTTONDOWN:
 489         case SDL_MOUSEBUTTONUP:
 490             {
 491                 SDL_MouseButtonEvent *bev = &ev->button;
 492                 if (!gui_grab && !kbd_mouse_is_absolute()) {
 493                     if (ev->type == SDL_MOUSEBUTTONDOWN &&
 494                         (bev->button == SDL_BUTTON_LEFT)) {
 495                         /* start grabbing all events */
 496                         sdl_grab_start();
 497                     }
 498                 } else {
 499                     int dz;
 500                     dz = 0;
 501                     if (ev->type == SDL_MOUSEBUTTONDOWN) {
 502                         buttonstate |= SDL_BUTTON(bev->button);
 503                     } else {
 504                         buttonstate &= ~SDL_BUTTON(bev->button);
 505                     }
 506 #ifdef SDL_BUTTON_WHEELUP
 507                     if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
 508                         dz = -1;
 509                     } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
 510                         dz = 1;
 511                     }
 512 #endif
 513                     sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
 514                 }
 515             }
 516             break;
 517         case SDL_ACTIVEEVENT:
 518             if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
 519                 !ev->active.gain && !gui_fullscreen_initial_grab) {
 520                 sdl_grab_end();
 521             }
 522             if (ev->active.state & SDL_APPACTIVE) {
 523                 if (ev->active.gain) {
 524                     /* Back to default interval */
 525                     dcl->gui_timer_interval = 0;
 526                     dcl->idle = 0;
 527                 } else {
 528                     /* Sleeping interval */
 529                     dcl->gui_timer_interval = 500;
 530                     dcl->idle = 1;
 531                 }
 532             }
 533             break;
 534         default:
 535             break;
 536         }
 537     }
 538 }
 539
 540 static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
 541 {
 542     SDL_Rect dst = { x, y, w, h };
 543     SDL_FillRect(real_screen, &dst, c);
 544 }
 545
 546 static void sdl_mouse_warp(int x, int y, int on)
 547 {
 548     if (on) {
 549         if (!guest_cursor)
 550             sdl_show_cursor();
 551         if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
 552             SDL_SetCursor(guest_sprite);
 553             if (!kbd_mouse_is_absolute() && !absolute_enabled)
 554                 SDL_WarpMouse(x, y);
 555         }
 556     } else if (gui_grab)
 557         sdl_hide_cursor();
 558     guest_cursor = on;
 559     guest_x = x, guest_y = y;
 560 }
 561
 562 static void sdl_mouse_define(int width, int height, int bpp,
 563                              int hot_x, int hot_y,
 564                              uint8_t *image, uint8_t *mask)
 565 {
 566     uint8_t sprite[256], *line;
 567     int x, y, dst, bypl, src = 0;
 568     if (guest_sprite)
 569         SDL_FreeCursor(guest_sprite);
 570
 571     memset(sprite, 0, 256);
 572     bypl = ((width * bpp + 31) >> 5) << 2;
 573     for (y = 0, dst = 0; y < height; y ++, image += bypl) {
 574         line = image;
 575         for (x = 0; x < width; x ++, dst ++) {
 576             switch (bpp) {
 577             case 24:
 578                 src = *(line ++); src |= *(line ++); src |= *(line ++);
 579                 break;
 580             case 16:
 581             case 15:
 582                 src = *(line ++); src |= *(line ++);
 583                 break;
 584             case 8:
 585                 src = *(line ++);
 586                 break;
 587             case 4:
 588                 src = 0xf & (line[x >> 1] >> ((x & 1)) << 2);
 589                 break;
 590             case 2:
 591                 src = 3 & (line[x >> 2] >> ((x & 3)) << 1);
 592                 break;
 593             case 1:
 594                 src = 1 & (line[x >> 3] >> (x & 7));
 595                 break;
 596             }
 597             if (!src)
 598                 sprite[dst >> 3] |= (1 << (~dst & 7)) & mask[dst >> 3];
 599         }
 600     }
 601     guest_sprite = SDL_CreateCursor(sprite, mask, width, height, hot_x, hot_y);
 602
 603     if (guest_cursor &&
 604             (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
 605         SDL_SetCursor(guest_sprite);
 606 }
 607
 608 static void sdl_cleanup(void)
 609 {
 610     if (guest_sprite)
 611         SDL_FreeCursor(guest_sprite);
 612     SDL_Quit();
 613 }
 614
 615 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
 616 {
 617     int flags;
 618     uint8_t data = 0;
 619
 620 #if defined(__APPLE__)
 621     /* always use generic keymaps */
 622     if (!keyboard_layout)
 623         keyboard_layout = "en-us";
 624 #endif
 625     if(keyboard_layout) {
 626         kbd_layout = init_keyboard_layout(keyboard_layout);
 627         if (!kbd_layout)
 628             exit(1);
 629     }
 630
 631     if (no_frame)
 632         gui_noframe = 1;
 633
 634     flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
 635     if (SDL_Init (flags)) {
 636         fprintf(stderr, "Could not initialize SDL - exiting\n");
 637         exit(1);
 638     }
 639
 640     dcl = qemu_mallocz(sizeof(DisplayChangeListener));
 641     dcl->dpy_update = sdl_update;
 642     dcl->dpy_resize = sdl_resize;
 643     dcl->dpy_refresh = sdl_refresh;
 644     dcl->dpy_setdata = sdl_setdata;
 645     dcl->dpy_fill = sdl_fill;
 646     ds->mouse_set = sdl_mouse_warp;
 647     ds->cursor_define = sdl_mouse_define;
 648     register_displaychangelistener(ds, dcl);
 649
 650     sdl_update_caption();
 651     SDL_EnableKeyRepeat(250, 50);
 652     gui_grab = 0;
 653
 654     sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
 655     sdl_cursor_normal = SDL_GetCursor();
 656
 657     atexit(sdl_cleanup);
 658     if (full_screen) {
 659         gui_fullscreen = 1;
 660         gui_fullscreen_initial_grab = 1;
 661         sdl_grab_start();
 662     }
 663 }