ui/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
  25 /* Avoid compiler warning because macro is redefined in SDL_syswm.h. */
  26 #undef WIN32_LEAN_AND_MEAN
  27
  28 #include <SDL.h>
  29 #include <SDL_syswm.h>
  30
  31 #include "qemu-common.h"
  32 #include "console.h"
  33 #include "sysemu.h"
  34 #include "x_keymap.h"
  35 #include "sdl_zoom.h"
  36
  37 static DisplayChangeListener *dcl;
  38 static SDL_Surface *real_screen;
  39 static SDL_Surface *guest_screen = NULL;
  40 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
  41 static int last_vm_running;
  42 static bool gui_saved_scaling;
  43 static int gui_saved_width;
  44 static int gui_saved_height;
  45 static int gui_saved_grab;
  46 static int gui_fullscreen;
  47 static int gui_noframe;
  48 static int gui_key_modifier_pressed;
  49 static int gui_keysym;
  50 static int gui_fullscreen_initial_grab;
  51 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
  52 static uint8_t modifiers_state[256];
  53 static int width, height;
  54 static SDL_Cursor *sdl_cursor_normal;
  55 static SDL_Cursor *sdl_cursor_hidden;
  56 static int absolute_enabled = 0;
  57 static int guest_cursor = 0;
  58 static int guest_x, guest_y;
  59 static SDL_Cursor *guest_sprite = NULL;
  60 static uint8_t allocator;
  61 static SDL_PixelFormat host_format;
  62 static int scaling_active = 0;
  63 static Notifier mouse_mode_notifier;
  64
  65 static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
  66 {
  67     //    printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
  68     SDL_Rect rec;
  69     rec.x = x;
  70     rec.y = y;
  71     rec.w = w;
  72     rec.h = h;
  73
  74     if (guest_screen) {
  75         if (!scaling_active) {
  76             SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
  77         } else {
  78             if (sdl_zoom_blit(guest_screen, real_screen, SMOOTHING_ON, &rec) < 0) {
  79                 fprintf(stderr, "Zoom blit failed\n");
  80                 exit(1);
  81             }
  82         }
  83     }
  84     SDL_UpdateRect(real_screen, rec.x, rec.y, rec.w, rec.h);
  85 }
  86
  87 static void sdl_setdata(DisplayState *ds)
  88 {
  89     if (guest_screen != NULL) SDL_FreeSurface(guest_screen);
  90
  91     guest_screen = SDL_CreateRGBSurfaceFrom(ds_get_data(ds), ds_get_width(ds), ds_get_height(ds),
  92                                             ds_get_bits_per_pixel(ds), ds_get_linesize(ds),
  93                                             ds->surface->pf.rmask, ds->surface->pf.gmask,
  94                                             ds->surface->pf.bmask, ds->surface->pf.amask);
  95 }
  96
  97 static void do_sdl_resize(int new_width, int new_height, int bpp)
  98 {
  99     int flags;
 100
 101     //    printf("resizing to %d %d\n", w, h);
 102
 103     flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
 104     if (gui_fullscreen) {
 105         flags |= SDL_FULLSCREEN;
 106     } else {
 107         flags |= SDL_RESIZABLE;
 108     }
 109     if (gui_noframe)
 110         flags |= SDL_NOFRAME;
 111
 112     width = new_width;
 113     height = new_height;
 114     real_screen = SDL_SetVideoMode(width, height, bpp, flags);
 115     if (!real_screen) {
 116         fprintf(stderr, "Could not open SDL display (%dx%dx%d): %s\n", width,
 117                 height, bpp, SDL_GetError());
 118         exit(1);
 119     }
 120 }
 121
 122 static void sdl_resize(DisplayState *ds)
 123 {
 124     if  (!allocator) {
 125         if (!scaling_active)
 126             do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
 127         else if (real_screen->format->BitsPerPixel != ds_get_bits_per_pixel(ds))
 128             do_sdl_resize(real_screen->w, real_screen->h, ds_get_bits_per_pixel(ds));
 129         sdl_setdata(ds);
 130     } else {
 131         if (guest_screen != NULL) {
 132             SDL_FreeSurface(guest_screen);
 133             guest_screen = NULL;
 134         }
 135     }
 136 }
 137
 138 static PixelFormat sdl_to_qemu_pixelformat(SDL_PixelFormat *sdl_pf)
 139 {
 140     PixelFormat qemu_pf;
 141
 142     memset(&qemu_pf, 0x00, sizeof(PixelFormat));
 143
 144     qemu_pf.bits_per_pixel = sdl_pf->BitsPerPixel;
 145     qemu_pf.bytes_per_pixel = sdl_pf->BytesPerPixel;
 146     qemu_pf.depth = (qemu_pf.bits_per_pixel) == 32 ? 24 : (qemu_pf.bits_per_pixel);
 147
 148     qemu_pf.rmask = sdl_pf->Rmask;
 149     qemu_pf.gmask = sdl_pf->Gmask;
 150     qemu_pf.bmask = sdl_pf->Bmask;
 151     qemu_pf.amask = sdl_pf->Amask;
 152
 153     qemu_pf.rshift = sdl_pf->Rshift;
 154     qemu_pf.gshift = sdl_pf->Gshift;
 155     qemu_pf.bshift = sdl_pf->Bshift;
 156     qemu_pf.ashift = sdl_pf->Ashift;
 157
 158     qemu_pf.rbits = 8 - sdl_pf->Rloss;
 159     qemu_pf.gbits = 8 - sdl_pf->Gloss;
 160     qemu_pf.bbits = 8 - sdl_pf->Bloss;
 161     qemu_pf.abits = 8 - sdl_pf->Aloss;
 162
 163     qemu_pf.rmax = ((1 << qemu_pf.rbits) - 1);
 164     qemu_pf.gmax = ((1 << qemu_pf.gbits) - 1);
 165     qemu_pf.bmax = ((1 << qemu_pf.bbits) - 1);
 166     qemu_pf.amax = ((1 << qemu_pf.abits) - 1);
 167
 168     return qemu_pf;
 169 }
 170
 171 static DisplaySurface* sdl_create_displaysurface(int width, int height)
 172 {
 173     DisplaySurface *surface = (DisplaySurface*) qemu_mallocz(sizeof(DisplaySurface));
 174     if (surface == NULL) {
 175         fprintf(stderr, "sdl_create_displaysurface: malloc failed\n");
 176         exit(1);
 177     }
 178
 179     surface->width = width;
 180     surface->height = height;
 181
 182     if (scaling_active) {
 183         int linesize;
 184         PixelFormat pf;
 185         if (host_format.BytesPerPixel != 2 && host_format.BytesPerPixel != 4) {
 186             linesize = width * 4;
 187             pf = qemu_default_pixelformat(32);
 188         } else {
 189             linesize = width * host_format.BytesPerPixel;
 190             pf = sdl_to_qemu_pixelformat(&host_format);
 191         }
 192         qemu_alloc_display(surface, width, height, linesize, pf, 0);
 193         return surface;
 194     }
 195
 196     if (host_format.BitsPerPixel == 16)
 197         do_sdl_resize(width, height, 16);
 198     else
 199         do_sdl_resize(width, height, 32);
 200
 201     surface->pf = sdl_to_qemu_pixelformat(real_screen->format);
 202     surface->linesize = real_screen->pitch;
 203     surface->data = real_screen->pixels;
 204
 205 #ifdef HOST_WORDS_BIGENDIAN
 206     surface->flags = QEMU_REALPIXELS_FLAG | QEMU_BIG_ENDIAN_FLAG;
 207 #else
 208     surface->flags = QEMU_REALPIXELS_FLAG;
 209 #endif
 210     allocator = 1;
 211
 212     return surface;
 213 }
 214
 215 static void sdl_free_displaysurface(DisplaySurface *surface)
 216 {
 217     allocator = 0;
 218     if (surface == NULL)
 219         return;
 220
 221     if (surface->flags & QEMU_ALLOCATED_FLAG)
 222         qemu_free(surface->data);
 223     qemu_free(surface);
 224 }
 225
 226 static DisplaySurface* sdl_resize_displaysurface(DisplaySurface *surface, int width, int height)
 227 {
 228     sdl_free_displaysurface(surface);
 229     return sdl_create_displaysurface(width, height);
 230 }
 231
 232 /* generic keyboard conversion */
 233
 234 #include "sdl_keysym.h"
 235
 236 static kbd_layout_t *kbd_layout = NULL;
 237
 238 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
 239 {
 240     int keysym;
 241     /* workaround for X11+SDL bug with AltGR */
 242     keysym = ev->keysym.sym;
 243     if (keysym == 0 && ev->keysym.scancode == 113)
 244         keysym = SDLK_MODE;
 245     /* For Japanese key '\' and '|' */
 246     if (keysym == 92 && ev->keysym.scancode == 133) {
 247         keysym = 0xa5;
 248     }
 249     return keysym2scancode(kbd_layout, keysym) & SCANCODE_KEYMASK;
 250 }
 251
 252 /* specific keyboard conversions from scan codes */
 253
 254 #if defined(_WIN32)
 255
 256 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
 257 {
 258     return ev->keysym.scancode;
 259 }
 260
 261 #else
 262
 263 #if defined(SDL_VIDEO_DRIVER_X11)
 264 #include <X11/XKBlib.h>
 265
 266 static int check_for_evdev(void)
 267 {
 268     SDL_SysWMinfo info;
 269     XkbDescPtr desc = NULL;
 270     int has_evdev = 0;
 271     char *keycodes = NULL;
 272
 273     SDL_VERSION(&info.version);
 274     if (!SDL_GetWMInfo(&info)) {
 275         return 0;
 276     }
 277     desc = XkbGetKeyboard(info.info.x11.display,
 278                           XkbGBN_AllComponentsMask,
 279                           XkbUseCoreKbd);
 280     if (desc && desc->names) {
 281         keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes);
 282         if (keycodes == NULL) {
 283             fprintf(stderr, "could not lookup keycode name\n");
 284         } else if (strstart(keycodes, "evdev", NULL)) {
 285             has_evdev = 1;
 286         } else if (!strstart(keycodes, "xfree86", NULL)) {
 287             fprintf(stderr, "unknown keycodes `%s', please report to "
 288                     "qemu-devel@nongnu.org\n", keycodes);
 289         }
 290     }
 291
 292     if (desc) {
 293         XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True);
 294     }
 295     if (keycodes) {
 296         XFree(keycodes);
 297     }
 298     return has_evdev;
 299 }
 300 #else
 301 static int check_for_evdev(void)
 302 {
 303         return 0;
 304 }
 305 #endif
 306
 307 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
 308 {
 309     int keycode;
 310     static int has_evdev = -1;
 311
 312     if (has_evdev == -1)
 313         has_evdev = check_for_evdev();
 314
 315     keycode = ev->keysym.scancode;
 316
 317     if (keycode < 9) {
 318         keycode = 0;
 319     } else if (keycode < 97) {
 320         keycode -= 8; /* just an offset */
 321     } else if (keycode < 158) {
 322         /* use conversion table */
 323         if (has_evdev)
 324             keycode = translate_evdev_keycode(keycode - 97);
 325         else
 326             keycode = translate_xfree86_keycode(keycode - 97);
 327     } else if (keycode == 208) { /* Hiragana_Katakana */
 328         keycode = 0x70;
 329     } else if (keycode == 211) { /* backslash */
 330         keycode = 0x73;
 331     } else {
 332         keycode = 0;
 333     }
 334     return keycode;
 335 }
 336
 337 #endif
 338
 339 static void reset_keys(void)
 340 {
 341     int i;
 342     for(i = 0; i < 256; i++) {
 343         if (modifiers_state[i]) {
 344             if (i & SCANCODE_GREY)
 345                 kbd_put_keycode(SCANCODE_EMUL0);
 346             kbd_put_keycode(i | SCANCODE_UP);
 347             modifiers_state[i] = 0;
 348         }
 349     }
 350 }
 351
 352 static void sdl_process_key(SDL_KeyboardEvent *ev)
 353 {
 354     int keycode, v;
 355
 356     if (ev->keysym.sym == SDLK_PAUSE) {
 357         /* specific case */
 358         v = 0;
 359         if (ev->type == SDL_KEYUP)
 360             v |= SCANCODE_UP;
 361         kbd_put_keycode(0xe1);
 362         kbd_put_keycode(0x1d | v);
 363         kbd_put_keycode(0x45 | v);
 364         return;
 365     }
 366
 367     if (kbd_layout) {
 368         keycode = sdl_keyevent_to_keycode_generic(ev);
 369     } else {
 370         keycode = sdl_keyevent_to_keycode(ev);
 371     }
 372
 373     switch(keycode) {
 374     case 0x00:
 375         /* sent when leaving window: reset the modifiers state */
 376         reset_keys();
 377         return;
 378     case 0x2a:                          /* Left Shift */
 379     case 0x36:                          /* Right Shift */
 380     case 0x1d:                          /* Left CTRL */
 381     case 0x9d:                          /* Right CTRL */
 382     case 0x38:                          /* Left ALT */
 383     case 0xb8:                         /* Right ALT */
 384         if (ev->type == SDL_KEYUP)
 385             modifiers_state[keycode] = 0;
 386         else
 387             modifiers_state[keycode] = 1;
 388         break;
 389 #define QEMU_SDL_VERSION ((SDL_MAJOR_VERSION << 8) + SDL_MINOR_VERSION)
 390 #if QEMU_SDL_VERSION < 0x102 || QEMU_SDL_VERSION == 0x102 && SDL_PATCHLEVEL < 14
 391         /* SDL versions before 1.2.14 don't support key up for caps/num lock. */
 392     case 0x45: /* num lock */
 393     case 0x3a: /* caps lock */
 394         /* SDL does not send the key up event, so we generate it */
 395         kbd_put_keycode(keycode);
 396         kbd_put_keycode(keycode | SCANCODE_UP);
 397         return;
 398 #endif
 399     }
 400
 401     /* now send the key code */
 402     if (keycode & SCANCODE_GREY)
 403         kbd_put_keycode(SCANCODE_EMUL0);
 404     if (ev->type == SDL_KEYUP)
 405         kbd_put_keycode(keycode | SCANCODE_UP);
 406     else
 407         kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK);
 408 }
 409
 410 static void sdl_update_caption(void)
 411 {
 412     char win_title[1024];
 413     char icon_title[1024];
 414     const char *status = "";
 415
 416     if (!vm_running)
 417         status = " [Stopped]";
 418     else if (gui_grab) {
 419         if (alt_grab)
 420             status = " - Press Ctrl-Alt-Shift to exit mouse grab";
 421         else if (ctrl_grab)
 422             status = " - Press Right-Ctrl to exit mouse grab";
 423         else
 424             status = " - Press Ctrl-Alt to exit mouse grab";
 425     }
 426
 427     if (qemu_name) {
 428         snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status);
 429         snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
 430     } else {
 431         snprintf(win_title, sizeof(win_title), "QEMU%s", status);
 432         snprintf(icon_title, sizeof(icon_title), "QEMU");
 433     }
 434
 435     SDL_WM_SetCaption(win_title, icon_title);
 436 }
 437
 438 static void sdl_hide_cursor(void)
 439 {
 440     if (!cursor_hide)
 441         return;
 442
 443     if (kbd_mouse_is_absolute()) {
 444         SDL_ShowCursor(1);
 445         SDL_SetCursor(sdl_cursor_hidden);
 446     } else {
 447         SDL_ShowCursor(0);
 448     }
 449 }
 450
 451 static void sdl_show_cursor(void)
 452 {
 453     if (!cursor_hide)
 454         return;
 455
 456     if (!kbd_mouse_is_absolute()) {
 457         SDL_ShowCursor(1);
 458         if (guest_cursor &&
 459                 (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
 460             SDL_SetCursor(guest_sprite);
 461         else
 462             SDL_SetCursor(sdl_cursor_normal);
 463     }
 464 }
 465
 466 static void sdl_grab_start(void)
 467 {
 468     if (guest_cursor) {
 469         SDL_SetCursor(guest_sprite);
 470         if (!kbd_mouse_is_absolute() && !absolute_enabled)
 471             SDL_WarpMouse(guest_x, guest_y);
 472     } else
 473         sdl_hide_cursor();
 474
 475     if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
 476         gui_grab = 1;
 477         sdl_update_caption();
 478     } else
 479         sdl_show_cursor();
 480 }
 481
 482 static void sdl_grab_end(void)
 483 {
 484     SDL_WM_GrabInput(SDL_GRAB_OFF);
 485     gui_grab = 0;
 486     sdl_show_cursor();
 487     sdl_update_caption();
 488 }
 489
 490 static void sdl_mouse_mode_change(Notifier *notify, void *data)
 491 {
 492     if (kbd_mouse_is_absolute()) {
 493         if (!absolute_enabled) {
 494             sdl_hide_cursor();
 495             if (gui_grab) {
 496                 sdl_grab_end();
 497             }
 498             absolute_enabled = 1;
 499         }
 500     } else if (absolute_enabled) {
 501         sdl_show_cursor();
 502         absolute_enabled = 0;
 503     }
 504 }
 505
 506 static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
 507 {
 508     int buttons;
 509     buttons = 0;
 510     if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
 511         buttons |= MOUSE_EVENT_LBUTTON;
 512     if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
 513         buttons |= MOUSE_EVENT_RBUTTON;
 514     if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
 515         buttons |= MOUSE_EVENT_MBUTTON;
 516
 517     if (kbd_mouse_is_absolute()) {
 518        dx = x * 0x7FFF / (width - 1);
 519        dy = y * 0x7FFF / (height - 1);
 520     } else if (guest_cursor) {
 521         x -= guest_x;
 522         y -= guest_y;
 523         guest_x += x;
 524         guest_y += y;
 525         dx = x;
 526         dy = y;
 527     }
 528
 529     kbd_mouse_event(dx, dy, dz, buttons);
 530 }
 531
 532 static void sdl_scale(DisplayState *ds, int width, int height)
 533 {
 534     int bpp = real_screen->format->BitsPerPixel;
 535
 536     if (bpp != 16 && bpp != 32) {
 537         bpp = 32;
 538     }
 539     do_sdl_resize(width, height, bpp);
 540     scaling_active = 1;
 541     if (!is_buffer_shared(ds->surface)) {
 542         ds->surface = qemu_resize_displaysurface(ds, ds_get_width(ds),
 543                                                  ds_get_height(ds));
 544         dpy_resize(ds);
 545     }
 546 }
 547
 548 static void toggle_full_screen(DisplayState *ds)
 549 {
 550     gui_fullscreen = !gui_fullscreen;
 551     if (gui_fullscreen) {
 552         gui_saved_width = real_screen->w;
 553         gui_saved_height = real_screen->h;
 554         gui_saved_scaling = scaling_active;
 555
 556         do_sdl_resize(ds_get_width(ds), ds_get_height(ds),
 557                       ds_get_bits_per_pixel(ds));
 558         scaling_active = 0;
 559
 560         gui_saved_grab = gui_grab;
 561         sdl_grab_start();
 562     } else {
 563         if (gui_saved_scaling) {
 564             sdl_scale(ds, gui_saved_width, gui_saved_height);
 565         } else {
 566             do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
 567         }
 568         if (!gui_saved_grab)
 569             sdl_grab_end();
 570     }
 571     vga_hw_invalidate();
 572     vga_hw_update();
 573 }
 574
 575 static void sdl_refresh(DisplayState *ds)
 576 {
 577     SDL_Event ev1, *ev = &ev1;
 578     int mod_state;
 579     int buttonstate = SDL_GetMouseState(NULL, NULL);
 580
 581     if (last_vm_running != vm_running) {
 582         last_vm_running = vm_running;
 583         sdl_update_caption();
 584     }
 585
 586     vga_hw_update();
 587     SDL_EnableUNICODE(!is_graphic_console());
 588
 589     while (SDL_PollEvent(ev)) {
 590         switch (ev->type) {
 591         case SDL_VIDEOEXPOSE:
 592             sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
 593             break;
 594         case SDL_KEYDOWN:
 595         case SDL_KEYUP:
 596             if (ev->type == SDL_KEYDOWN) {
 597                 if (alt_grab) {
 598                     mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
 599                                 (gui_grab_code | KMOD_LSHIFT);
 600                 } else if (ctrl_grab) {
 601                     mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL;
 602                 } else {
 603                     mod_state = (SDL_GetModState() & gui_grab_code) ==
 604                                 gui_grab_code;
 605                 }
 606                 gui_key_modifier_pressed = mod_state;
 607                 if (gui_key_modifier_pressed) {
 608                     int keycode;
 609                     keycode = sdl_keyevent_to_keycode(&ev->key);
 610                     switch(keycode) {
 611                     case 0x21: /* 'f' key on US keyboard */
 612                         toggle_full_screen(ds);
 613                         gui_keysym = 1;
 614                         break;
 615                     case 0x16: /* 'u' key on US keyboard */
 616                         if (scaling_active) {
 617                             scaling_active = 0;
 618                             sdl_resize(ds);
 619                             vga_hw_invalidate();
 620                             vga_hw_update();
 621                         }
 622                         gui_keysym = 1;
 623                         break;
 624                     case 0x02 ... 0x0a: /* '1' to '9' keys */
 625                         /* Reset the modifiers sent to the current console */
 626                         reset_keys();
 627                         console_select(keycode - 0x02);
 628                         if (!is_graphic_console()) {
 629                             /* display grab if going to a text console */
 630                             if (gui_grab)
 631                                 sdl_grab_end();
 632                         }
 633                         gui_keysym = 1;
 634                         break;
 635                     default:
 636                         break;
 637                     }
 638                 } else if (!is_graphic_console()) {
 639                     int keysym;
 640                     keysym = 0;
 641                     if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
 642                         switch(ev->key.keysym.sym) {
 643                         case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
 644                         case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
 645                         case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
 646                         case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
 647                         case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
 648                         case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
 649                         case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
 650                         case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
 651                         default: break;
 652                         }
 653                     } else {
 654                         switch(ev->key.keysym.sym) {
 655                         case SDLK_UP: keysym = QEMU_KEY_UP; break;
 656                         case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
 657                         case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
 658                         case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
 659                         case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
 660                         case SDLK_END: keysym = QEMU_KEY_END; break;
 661                         case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
 662                         case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
 663                         case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break;
 664                         case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
 665                         default: break;
 666                         }
 667                     }
 668                     if (keysym) {
 669                         kbd_put_keysym(keysym);
 670                     } else if (ev->key.keysym.unicode != 0) {
 671                         kbd_put_keysym(ev->key.keysym.unicode);
 672                     }
 673                 }
 674             } else if (ev->type == SDL_KEYUP) {
 675                 if (!alt_grab) {
 676                     mod_state = (ev->key.keysym.mod & gui_grab_code);
 677                 } else {
 678                     mod_state = (ev->key.keysym.mod &
 679                                  (gui_grab_code | KMOD_LSHIFT));
 680                 }
 681                 if (!mod_state) {
 682                     if (gui_key_modifier_pressed) {
 683                         gui_key_modifier_pressed = 0;
 684                         if (gui_keysym == 0) {
 685                             /* exit/enter grab if pressing Ctrl-Alt */
 686                             if (!gui_grab) {
 687                                 /* if the application is not active,
 688                                    do not try to enter grab state. It
 689                                    prevents
 690                                    'SDL_WM_GrabInput(SDL_GRAB_ON)'
 691                                    from blocking all the application
 692                                    (SDL bug). */
 693                                 if (SDL_GetAppState() & SDL_APPACTIVE)
 694                                     sdl_grab_start();
 695                             } else {
 696                                 sdl_grab_end();
 697                             }
 698                             /* SDL does not send back all the
 699                                modifiers key, so we must correct it */
 700                             reset_keys();
 701                             break;
 702                         }
 703                         gui_keysym = 0;
 704                     }
 705                 }
 706             }
 707             if (is_graphic_console() && !gui_keysym)
 708                 sdl_process_key(&ev->key);
 709             break;
 710         case SDL_QUIT:
 711             if (!no_quit) {
 712                 no_shutdown = 0;
 713                 qemu_system_shutdown_request();
 714             }
 715             break;
 716         case SDL_MOUSEMOTION:
 717             if (gui_grab || kbd_mouse_is_absolute() ||
 718                 absolute_enabled) {
 719                 sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0,
 720                        ev->motion.x, ev->motion.y, ev->motion.state);
 721             }
 722             break;
 723         case SDL_MOUSEBUTTONDOWN:
 724         case SDL_MOUSEBUTTONUP:
 725             {
 726                 SDL_MouseButtonEvent *bev = &ev->button;
 727                 if (!gui_grab && !kbd_mouse_is_absolute()) {
 728                     if (ev->type == SDL_MOUSEBUTTONDOWN &&
 729                         (bev->button == SDL_BUTTON_LEFT)) {
 730                         /* start grabbing all events */
 731                         sdl_grab_start();
 732                     }
 733                 } else {
 734                     int dz;
 735                     dz = 0;
 736                     if (ev->type == SDL_MOUSEBUTTONDOWN) {
 737                         buttonstate |= SDL_BUTTON(bev->button);
 738                     } else {
 739                         buttonstate &= ~SDL_BUTTON(bev->button);
 740                     }
 741 #ifdef SDL_BUTTON_WHEELUP
 742                     if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) {
 743                         dz = -1;
 744                     } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) {
 745                         dz = 1;
 746                     }
 747 #endif
 748                     sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate);
 749                 }
 750             }
 751             break;
 752         case SDL_ACTIVEEVENT:
 753             if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
 754                 !ev->active.gain && !gui_fullscreen_initial_grab) {
 755                 sdl_grab_end();
 756             }
 757             if (ev->active.state & SDL_APPACTIVE) {
 758                 if (ev->active.gain) {
 759                     /* Back to default interval */
 760                     dcl->gui_timer_interval = 0;
 761                     dcl->idle = 0;
 762                 } else {
 763                     /* Sleeping interval */
 764                     dcl->gui_timer_interval = 500;
 765                     dcl->idle = 1;
 766                 }
 767             }
 768             break;
 769         case SDL_VIDEORESIZE:
 770             sdl_scale(ds, ev->resize.w, ev->resize.h);
 771             vga_hw_invalidate();
 772             vga_hw_update();
 773             break;
 774         default:
 775             break;
 776         }
 777     }
 778 }
 779
 780 static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
 781 {
 782     SDL_Rect dst = { x, y, w, h };
 783     SDL_FillRect(real_screen, &dst, c);
 784 }
 785
 786 static void sdl_mouse_warp(int x, int y, int on)
 787 {
 788     if (on) {
 789         if (!guest_cursor)
 790             sdl_show_cursor();
 791         if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) {
 792             SDL_SetCursor(guest_sprite);
 793             if (!kbd_mouse_is_absolute() && !absolute_enabled)
 794                 SDL_WarpMouse(x, y);
 795         }
 796     } else if (gui_grab)
 797         sdl_hide_cursor();
 798     guest_cursor = on;
 799     guest_x = x, guest_y = y;
 800 }
 801
 802 static void sdl_mouse_define(QEMUCursor *c)
 803 {
 804     uint8_t *image, *mask;
 805     int bpl;
 806
 807     if (guest_sprite)
 808         SDL_FreeCursor(guest_sprite);
 809
 810     bpl = cursor_get_mono_bpl(c);
 811     image = qemu_mallocz(bpl * c->height);
 812     mask  = qemu_mallocz(bpl * c->height);
 813     cursor_get_mono_image(c, 0x000000, image);
 814     cursor_get_mono_mask(c, 0, mask);
 815     guest_sprite = SDL_CreateCursor(image, mask, c->width, c->height,
 816                                     c->hot_x, c->hot_y);
 817     qemu_free(image);
 818     qemu_free(mask);
 819
 820     if (guest_cursor &&
 821             (gui_grab || kbd_mouse_is_absolute() || absolute_enabled))
 822         SDL_SetCursor(guest_sprite);
 823 }
 824
 825 static void sdl_cleanup(void)
 826 {
 827     if (guest_sprite)
 828         SDL_FreeCursor(guest_sprite);
 829     SDL_QuitSubSystem(SDL_INIT_VIDEO);
 830 }
 831
 832 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
 833 {
 834     int flags;
 835     uint8_t data = 0;
 836     DisplayAllocator *da;
 837     const SDL_VideoInfo *vi;
 838     char *filename;
 839
 840 #if defined(__APPLE__)
 841     /* always use generic keymaps */
 842     if (!keyboard_layout)
 843         keyboard_layout = "en-us";
 844 #endif
 845     if(keyboard_layout) {
 846         kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout);
 847         if (!kbd_layout)
 848             exit(1);
 849     }
 850
 851     if (no_frame)
 852         gui_noframe = 1;
 853
 854     if (!full_screen) {
 855         setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 0);
 856     }
 857 #ifdef __linux__
 858     /* on Linux, SDL may use fbcon|directfb|svgalib when run without
 859      * accessible $DISPLAY to open X11 window.  This is often the case
 860      * when qemu is run using sudo.  But in this case, and when actually
 861      * run in X11 environment, SDL fights with X11 for the video card,
 862      * making current display unavailable, often until reboot.
 863      * So make x11 the default SDL video driver if this variable is unset.
 864      * This is a bit hackish but saves us from bigger problem.
 865      * Maybe it's a good idea to fix this in SDL instead.
 866      */
 867     setenv("SDL_VIDEODRIVER", "x11", 0);
 868 #endif
 869
 870     /* Enable normal up/down events for Caps-Lock and Num-Lock keys.
 871      * This requires SDL >= 1.2.14. */
 872     setenv("SDL_DISABLE_LOCK_KEYS", "1", 1);
 873
 874     flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
 875     if (SDL_Init (flags)) {
 876         fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
 877                 SDL_GetError());
 878         exit(1);
 879     }
 880     vi = SDL_GetVideoInfo();
 881     host_format = *(vi->vfmt);
 882
 883     /* Load a 32x32x4 image. White pixels are transparent. */
 884     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp");
 885     if (filename) {
 886         SDL_Surface *image = SDL_LoadBMP(filename);
 887         if (image) {
 888             uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255);
 889             SDL_SetColorKey(image, SDL_SRCCOLORKEY, colorkey);
 890             SDL_WM_SetIcon(image, NULL);
 891         }
 892         qemu_free(filename);
 893     }
 894
 895     dcl = qemu_mallocz(sizeof(DisplayChangeListener));
 896     dcl->dpy_update = sdl_update;
 897     dcl->dpy_resize = sdl_resize;
 898     dcl->dpy_refresh = sdl_refresh;
 899     dcl->dpy_setdata = sdl_setdata;
 900     dcl->dpy_fill = sdl_fill;
 901     ds->mouse_set = sdl_mouse_warp;
 902     ds->cursor_define = sdl_mouse_define;
 903     register_displaychangelistener(ds, dcl);
 904
 905     da = qemu_mallocz(sizeof(DisplayAllocator));
 906     da->create_displaysurface = sdl_create_displaysurface;
 907     da->resize_displaysurface = sdl_resize_displaysurface;
 908     da->free_displaysurface = sdl_free_displaysurface;
 909     if (register_displayallocator(ds, da) == da) {
 910         dpy_resize(ds);
 911     }
 912
 913     mouse_mode_notifier.notify = sdl_mouse_mode_change;
 914     qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
 915
 916     sdl_update_caption();
 917     SDL_EnableKeyRepeat(250, 50);
 918     gui_grab = 0;
 919
 920     sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
 921     sdl_cursor_normal = SDL_GetCursor();
 922
 923     atexit(sdl_cleanup);
 924     if (full_screen) {
 925         gui_fullscreen = 1;
 926         gui_fullscreen_initial_grab = 1;
 927         sdl_grab_start();
 928     }
 929 }