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 "qemu/osdep.h"
  29 #include <SDL.h>
  30 #include <SDL_syswm.h>
  31
  32 #include "qapi/error.h"
  33 #include "qemu-common.h"
  34 #include "qemu/cutils.h"
  35 #include "ui/console.h"
  36 #include "ui/input.h"
  37 #include "sysemu/sysemu.h"
  38 #ifndef WIN32
  39 #include "x_keymap.h"
  40 #endif
  41 #include "sdl_zoom.h"
  42
  43 static DisplayChangeListener *dcl;
  44 static DisplaySurface *surface;
  45 static DisplayOptions *opts;
  46 static SDL_Surface *real_screen;
  47 static SDL_Surface *guest_screen = NULL;
  48 static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
  49 static int last_vm_running;
  50 static bool gui_saved_scaling;
  51 static int gui_saved_width;
  52 static int gui_saved_height;
  53 static int gui_saved_grab;
  54 static int gui_fullscreen;
  55 static int gui_key_modifier_pressed;
  56 static int gui_keysym;
  57 static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
  58 static uint8_t modifiers_state[256];
  59 static SDL_Cursor *sdl_cursor_normal;
  60 static SDL_Cursor *sdl_cursor_hidden;
  61 static int absolute_enabled = 0;
  62 static int guest_cursor = 0;
  63 static int guest_x, guest_y;
  64 static SDL_Cursor *guest_sprite = NULL;
  65 static SDL_PixelFormat host_format;
  66 static int scaling_active = 0;
  67 static Notifier mouse_mode_notifier;
  68 static int idle_counter;
  69 static const guint16 *keycode_map;
  70 static size_t keycode_maplen;
  71
  72 #define SDL_REFRESH_INTERVAL_BUSY 10
  73 #define SDL_MAX_IDLE_COUNT (2 * GUI_REFRESH_INTERVAL_DEFAULT \
  74                             / SDL_REFRESH_INTERVAL_BUSY + 1)
  75
  76 #if 0
  77 #define DEBUG_SDL
  78 #endif
  79
  80 static void sdl_update(DisplayChangeListener *dcl,
  81                        int x, int y, int w, int h)
  82 {
  83     SDL_Rect rec;
  84     rec.x = x;
  85     rec.y = y;
  86     rec.w = w;
  87     rec.h = h;
  88
  89 #ifdef DEBUG_SDL
  90     printf("SDL: Updating x=%d y=%d w=%d h=%d (scaling: %d)\n",
  91            x, y, w, h, scaling_active);
  92 #endif
  93
  94     if (guest_screen) {
  95         if (!scaling_active) {
  96             SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
  97         } else {
  98             if (sdl_zoom_blit(guest_screen, real_screen, SMOOTHING_ON, &rec) < 0) {
  99                 fprintf(stderr, "Zoom blit failed\n");
 100                 exit(1);
 101             }
 102         }
 103     }
 104     SDL_UpdateRect(real_screen, rec.x, rec.y, rec.w, rec.h);
 105 }
 106
 107 static void do_sdl_resize(int width, int height, int bpp)
 108 {
 109     int flags;
 110     SDL_Surface *tmp_screen;
 111
 112 #ifdef DEBUG_SDL
 113     printf("SDL: Resizing to %dx%d bpp %d\n", width, height, bpp);
 114 #endif
 115
 116     flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
 117     if (gui_fullscreen) {
 118         flags |= SDL_FULLSCREEN;
 119     } else {
 120         flags |= SDL_RESIZABLE;
 121     }
 122     if (no_frame) {
 123         flags |= SDL_NOFRAME;
 124     }
 125
 126     tmp_screen = SDL_SetVideoMode(width, height, bpp, flags);
 127     if (!real_screen) {
 128         if (!tmp_screen) {
 129             fprintf(stderr, "Could not open SDL display (%dx%dx%d): %s\n",
 130                     width, height, bpp, SDL_GetError());
 131             exit(1);
 132         }
 133     } else {
 134         /*
 135          * Revert to the previous video mode if the change of resizing or
 136          * resolution failed.
 137          */
 138         if (!tmp_screen) {
 139             fprintf(stderr, "Failed to set SDL display (%dx%dx%d): %s\n",
 140                     width, height, bpp, SDL_GetError());
 141             return;
 142         }
 143     }
 144
 145     real_screen = tmp_screen;
 146 }
 147
 148 static void sdl_switch(DisplayChangeListener *dcl,
 149                        DisplaySurface *new_surface)
 150 {
 151     PixelFormat pf;
 152
 153     /* temporary hack: allows to call sdl_switch to handle scaling changes */
 154     if (new_surface) {
 155         surface = new_surface;
 156     }
 157     pf = qemu_pixelformat_from_pixman(surface->format);
 158
 159     if (!scaling_active) {
 160         do_sdl_resize(surface_width(surface), surface_height(surface), 0);
 161     } else if (real_screen->format->BitsPerPixel !=
 162                surface_bits_per_pixel(surface)) {
 163         do_sdl_resize(real_screen->w, real_screen->h,
 164                       surface_bits_per_pixel(surface));
 165     }
 166
 167     if (guest_screen != NULL) {
 168         SDL_FreeSurface(guest_screen);
 169     }
 170
 171 #ifdef DEBUG_SDL
 172     printf("SDL: Creating surface with masks: %08x %08x %08x %08x\n",
 173            pf.rmask, pf.gmask, pf.bmask, pf.amask);
 174 #endif
 175
 176     guest_screen = SDL_CreateRGBSurfaceFrom
 177         (surface_data(surface),
 178          surface_width(surface), surface_height(surface),
 179          surface_bits_per_pixel(surface), surface_stride(surface),
 180          pf.rmask, pf.gmask,
 181          pf.bmask, pf.amask);
 182 }
 183
 184 static bool sdl_check_format(DisplayChangeListener *dcl,
 185                              pixman_format_code_t format)
 186 {
 187     /*
 188      * We let SDL convert for us a few more formats than,
 189      * the native ones. Thes are the ones I have tested.
 190      */
 191     return (format == PIXMAN_x8r8g8b8 ||
 192             format == PIXMAN_b8g8r8x8 ||
 193             format == PIXMAN_x1r5g5b5 ||
 194             format == PIXMAN_r5g6b5);
 195 }
 196
 197 /* generic keyboard conversion */
 198
 199 #include "sdl_keysym.h"
 200
 201 static kbd_layout_t *kbd_layout = NULL;
 202
 203 static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev)
 204 {
 205     bool shift = modifiers_state[0x2a] || modifiers_state[0x36];
 206     bool altgr = modifiers_state[0xb8];
 207     bool ctrl  = modifiers_state[0x1d] || modifiers_state[0x9d];
 208     int keysym;
 209     /* workaround for X11+SDL bug with AltGR */
 210     keysym = ev->keysym.sym;
 211     if (keysym == 0 && ev->keysym.scancode == 113)
 212         keysym = SDLK_MODE;
 213     /* For Japanese key '\' and '|' */
 214     if (keysym == 92 && ev->keysym.scancode == 133) {
 215         keysym = 0xa5;
 216     }
 217     return keysym2scancode(kbd_layout, keysym,
 218                            shift, altgr, ctrl) & SCANCODE_KEYMASK;
 219 }
 220
 221
 222 static const guint16 *sdl_get_keymap(size_t *maplen)
 223 {
 224 #if defined(WIN32)
 225     *maplen = qemu_input_map_atset1_to_qcode_len;
 226     return qemu_input_map_atset1_to_qcode;
 227 #else
 228 #if defined(SDL_VIDEO_DRIVER_X11)
 229     SDL_SysWMinfo info;
 230
 231     SDL_VERSION(&info.version);
 232     if (SDL_GetWMInfo(&info) > 0) {
 233         return qemu_xkeymap_mapping_table(
 234             info.info.x11.display, maplen);
 235     }
 236 #endif
 237     g_warning("Unsupported SDL video driver / platform.\n"
 238               "Assuming Linux KBD scancodes, but probably wrong.\n"
 239               "Please report to qemu-devel@nongnu.org\n"
 240               "including the following information:\n"
 241               "\n"
 242               "  - Operating system\n"
 243               "  - SDL video driver\n");
 244     *maplen = qemu_input_map_xorgkbd_to_qcode_len;
 245     return qemu_input_map_xorgkbd_to_qcode;
 246 #endif
 247 }
 248
 249 static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
 250 {
 251     int qcode;
 252     if (!keycode_map) {
 253         return 0;
 254     }
 255     if (ev->keysym.scancode > keycode_maplen) {
 256         return 0;
 257     }
 258
 259     qcode = keycode_map[ev->keysym.scancode];
 260
 261     if (qcode > qemu_input_map_qcode_to_qnum_len) {
 262         return 0;
 263     }
 264
 265     return qemu_input_map_qcode_to_qnum[qcode];
 266 }
 267
 268 static void reset_keys(void)
 269 {
 270     int i;
 271     for(i = 0; i < 256; i++) {
 272         if (modifiers_state[i]) {
 273             qemu_input_event_send_key_number(dcl->con, i, false);
 274             modifiers_state[i] = 0;
 275         }
 276     }
 277 }
 278
 279 static void sdl_process_key(SDL_KeyboardEvent *ev)
 280 {
 281     int keycode;
 282
 283     if (ev->keysym.sym == SDLK_PAUSE) {
 284         /* specific case */
 285         qemu_input_event_send_key_qcode(dcl->con, Q_KEY_CODE_PAUSE,
 286                                         ev->type == SDL_KEYDOWN);
 287         return;
 288     }
 289
 290     if (kbd_layout) {
 291         keycode = sdl_keyevent_to_keycode_generic(ev);
 292     } else {
 293         keycode = sdl_keyevent_to_keycode(ev);
 294     }
 295
 296     switch(keycode) {
 297     case 0x00:
 298         /* sent when leaving window: reset the modifiers state */
 299         reset_keys();
 300         return;
 301     case 0x2a:                          /* Left Shift */
 302     case 0x36:                          /* Right Shift */
 303     case 0x1d:                          /* Left CTRL */
 304     case 0x9d:                          /* Right CTRL */
 305     case 0x38:                          /* Left ALT */
 306     case 0xb8:                         /* Right ALT */
 307         if (ev->type == SDL_KEYUP)
 308             modifiers_state[keycode] = 0;
 309         else
 310             modifiers_state[keycode] = 1;
 311         break;
 312 #define QEMU_SDL_VERSION ((SDL_MAJOR_VERSION << 8) + SDL_MINOR_VERSION)
 313 #if QEMU_SDL_VERSION < 0x102 || QEMU_SDL_VERSION == 0x102 && SDL_PATCHLEVEL < 14
 314         /* SDL versions before 1.2.14 don't support key up for caps/num lock. */
 315     case 0x45: /* num lock */
 316     case 0x3a: /* caps lock */
 317         /* SDL does not send the key up event, so we generate it */
 318         qemu_input_event_send_key_number(dcl->con, keycode, true);
 319         qemu_input_event_send_key_number(dcl->con, keycode, false);
 320         return;
 321 #endif
 322     }
 323
 324     /* now send the key code */
 325     qemu_input_event_send_key_number(dcl->con, keycode,
 326                                      ev->type == SDL_KEYDOWN);
 327 }
 328
 329 static void sdl_update_caption(void)
 330 {
 331     char win_title[1024];
 332     char icon_title[1024];
 333     const char *status = "";
 334
 335     if (!runstate_is_running())
 336         status = " [Stopped]";
 337     else if (gui_grab) {
 338         if (alt_grab)
 339             status = " - Press Ctrl-Alt-Shift-G to exit mouse grab";
 340         else if (ctrl_grab)
 341             status = " - Press Right-Ctrl-G to exit mouse grab";
 342         else
 343             status = " - Press Ctrl-Alt-G to exit mouse grab";
 344     }
 345
 346     if (qemu_name) {
 347         snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status);
 348         snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
 349     } else {
 350         snprintf(win_title, sizeof(win_title), "QEMU%s", status);
 351         snprintf(icon_title, sizeof(icon_title), "QEMU");
 352     }
 353
 354     SDL_WM_SetCaption(win_title, icon_title);
 355 }
 356
 357 static void sdl_hide_cursor(void)
 358 {
 359     if (!cursor_hide)
 360         return;
 361
 362     if (qemu_input_is_absolute()) {
 363         SDL_ShowCursor(1);
 364         SDL_SetCursor(sdl_cursor_hidden);
 365     } else {
 366         SDL_ShowCursor(0);
 367     }
 368 }
 369
 370 static void sdl_show_cursor(void)
 371 {
 372     if (!cursor_hide)
 373         return;
 374
 375     if (!qemu_input_is_absolute() || !qemu_console_is_graphic(NULL)) {
 376         SDL_ShowCursor(1);
 377         if (guest_cursor &&
 378                 (gui_grab || qemu_input_is_absolute() || absolute_enabled))
 379             SDL_SetCursor(guest_sprite);
 380         else
 381             SDL_SetCursor(sdl_cursor_normal);
 382     }
 383 }
 384
 385 static void sdl_grab_start(void)
 386 {
 387     /*
 388      * If the application is not active, do not try to enter grab state. This
 389      * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the
 390      * application (SDL bug).
 391      */
 392     if (!(SDL_GetAppState() & SDL_APPINPUTFOCUS)) {
 393         return;
 394     }
 395     if (guest_cursor) {
 396         SDL_SetCursor(guest_sprite);
 397         if (!qemu_input_is_absolute() && !absolute_enabled) {
 398             SDL_WarpMouse(guest_x, guest_y);
 399         }
 400     } else
 401         sdl_hide_cursor();
 402     SDL_WM_GrabInput(SDL_GRAB_ON);
 403     gui_grab = 1;
 404     sdl_update_caption();
 405 }
 406
 407 static void sdl_grab_end(void)
 408 {
 409     SDL_WM_GrabInput(SDL_GRAB_OFF);
 410     gui_grab = 0;
 411     sdl_show_cursor();
 412     sdl_update_caption();
 413 }
 414
 415 static void absolute_mouse_grab(void)
 416 {
 417     int mouse_x, mouse_y;
 418
 419     SDL_GetMouseState(&mouse_x, &mouse_y);
 420     if (mouse_x > 0 && mouse_x < real_screen->w - 1 &&
 421         mouse_y > 0 && mouse_y < real_screen->h - 1) {
 422         sdl_grab_start();
 423     }
 424 }
 425
 426 static void sdl_mouse_mode_change(Notifier *notify, void *data)
 427 {
 428     if (qemu_input_is_absolute()) {
 429         if (!absolute_enabled) {
 430             absolute_enabled = 1;
 431             if (qemu_console_is_graphic(NULL)) {
 432                 absolute_mouse_grab();
 433             }
 434         }
 435     } else if (absolute_enabled) {
 436         if (!gui_fullscreen) {
 437             sdl_grab_end();
 438         }
 439         absolute_enabled = 0;
 440     }
 441 }
 442
 443 static void sdl_send_mouse_event(int dx, int dy, int x, int y, int state)
 444 {
 445     static uint32_t bmap[INPUT_BUTTON__MAX] = {
 446         [INPUT_BUTTON_LEFT]       = SDL_BUTTON(SDL_BUTTON_LEFT),
 447         [INPUT_BUTTON_MIDDLE]     = SDL_BUTTON(SDL_BUTTON_MIDDLE),
 448         [INPUT_BUTTON_RIGHT]      = SDL_BUTTON(SDL_BUTTON_RIGHT),
 449         [INPUT_BUTTON_WHEEL_UP]   = SDL_BUTTON(SDL_BUTTON_WHEELUP),
 450         [INPUT_BUTTON_WHEEL_DOWN] = SDL_BUTTON(SDL_BUTTON_WHEELDOWN),
 451     };
 452     static uint32_t prev_state;
 453
 454     if (prev_state != state) {
 455         qemu_input_update_buttons(dcl->con, bmap, prev_state, state);
 456         prev_state = state;
 457     }
 458
 459     if (qemu_input_is_absolute()) {
 460         qemu_input_queue_abs(dcl->con, INPUT_AXIS_X, x,
 461                              0, real_screen->w);
 462         qemu_input_queue_abs(dcl->con, INPUT_AXIS_Y, y,
 463                              0, real_screen->h);
 464     } else {
 465         if (guest_cursor) {
 466             x -= guest_x;
 467             y -= guest_y;
 468             guest_x += x;
 469             guest_y += y;
 470             dx = x;
 471             dy = y;
 472         }
 473         qemu_input_queue_rel(dcl->con, INPUT_AXIS_X, dx);
 474         qemu_input_queue_rel(dcl->con, INPUT_AXIS_Y, dy);
 475     }
 476     qemu_input_event_sync();
 477 }
 478
 479 static void sdl_scale(int width, int height)
 480 {
 481     int bpp = real_screen->format->BitsPerPixel;
 482
 483 #ifdef DEBUG_SDL
 484     printf("SDL: Scaling to %dx%d bpp %d\n", width, height, bpp);
 485 #endif
 486
 487     if (bpp != 16 && bpp != 32) {
 488         bpp = 32;
 489     }
 490     do_sdl_resize(width, height, bpp);
 491     scaling_active = 1;
 492 }
 493
 494 static void toggle_full_screen(void)
 495 {
 496     int width = surface_width(surface);
 497     int height = surface_height(surface);
 498     int bpp = surface_bits_per_pixel(surface);
 499
 500     gui_fullscreen = !gui_fullscreen;
 501     if (gui_fullscreen) {
 502         gui_saved_width = real_screen->w;
 503         gui_saved_height = real_screen->h;
 504         gui_saved_scaling = scaling_active;
 505
 506         do_sdl_resize(width, height, bpp);
 507         scaling_active = 0;
 508
 509         gui_saved_grab = gui_grab;
 510         sdl_grab_start();
 511     } else {
 512         if (gui_saved_scaling) {
 513             sdl_scale(gui_saved_width, gui_saved_height);
 514         } else {
 515             do_sdl_resize(width, height, 0);
 516         }
 517         if (!gui_saved_grab || !qemu_console_is_graphic(NULL)) {
 518             sdl_grab_end();
 519         }
 520     }
 521     graphic_hw_invalidate(NULL);
 522     graphic_hw_update(NULL);
 523 }
 524
 525 static void handle_keydown(SDL_Event *ev)
 526 {
 527     int mod_state;
 528     int keycode;
 529
 530     if (alt_grab) {
 531         mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) ==
 532                     (gui_grab_code | KMOD_LSHIFT);
 533     } else if (ctrl_grab) {
 534         mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL;
 535     } else {
 536         mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code;
 537     }
 538     gui_key_modifier_pressed = mod_state;
 539
 540     if (gui_key_modifier_pressed) {
 541         keycode = sdl_keyevent_to_keycode(&ev->key);
 542         switch (keycode) {
 543         case 0x21: /* 'f' key on US keyboard */
 544             toggle_full_screen();
 545             gui_keysym = 1;
 546             break;
 547         case 0x22: /* 'g' key */
 548             if (!gui_grab) {
 549                 if (qemu_console_is_graphic(NULL)) {
 550                     sdl_grab_start();
 551                 }
 552             } else if (!gui_fullscreen) {
 553                 sdl_grab_end();
 554             }
 555             gui_keysym = 1;
 556             break;
 557         case 0x16: /* 'u' key on US keyboard */
 558             if (scaling_active) {
 559                 scaling_active = 0;
 560                 sdl_switch(dcl, NULL);
 561                 graphic_hw_invalidate(NULL);
 562                 graphic_hw_update(NULL);
 563             }
 564             gui_keysym = 1;
 565             break;
 566         case 0x02 ... 0x0a: /* '1' to '9' keys */
 567             /* Reset the modifiers sent to the current console */
 568             reset_keys();
 569             console_select(keycode - 0x02);
 570             gui_keysym = 1;
 571             if (gui_fullscreen) {
 572                 break;
 573             }
 574             if (!qemu_console_is_graphic(NULL)) {
 575                 /* release grab if going to a text console */
 576                 if (gui_grab) {
 577                     sdl_grab_end();
 578                 } else if (absolute_enabled) {
 579                     sdl_show_cursor();
 580                 }
 581             } else if (absolute_enabled) {
 582                 sdl_hide_cursor();
 583                 absolute_mouse_grab();
 584             }
 585             break;
 586         case 0x1b: /* '+' */
 587         case 0x35: /* '-' */
 588             if (!gui_fullscreen) {
 589                 int width = MAX(real_screen->w + (keycode == 0x1b ? 50 : -50),
 590                                 160);
 591                 int height = (surface_height(surface) * width) /
 592                     surface_width(surface);
 593
 594                 sdl_scale(width, height);
 595                 graphic_hw_invalidate(NULL);
 596                 graphic_hw_update(NULL);
 597                 gui_keysym = 1;
 598             }
 599         default:
 600             break;
 601         }
 602     } else if (!qemu_console_is_graphic(NULL)) {
 603         int keysym = 0;
 604
 605         if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
 606             switch (ev->key.keysym.sym) {
 607             case SDLK_UP:
 608                 keysym = QEMU_KEY_CTRL_UP;
 609                 break;
 610             case SDLK_DOWN:
 611                 keysym = QEMU_KEY_CTRL_DOWN;
 612                 break;
 613             case SDLK_LEFT:
 614                 keysym = QEMU_KEY_CTRL_LEFT;
 615                 break;
 616             case SDLK_RIGHT:
 617                 keysym = QEMU_KEY_CTRL_RIGHT;
 618                 break;
 619             case SDLK_HOME:
 620                 keysym = QEMU_KEY_CTRL_HOME;
 621                 break;
 622             case SDLK_END:
 623                 keysym = QEMU_KEY_CTRL_END;
 624                 break;
 625             case SDLK_PAGEUP:
 626                 keysym = QEMU_KEY_CTRL_PAGEUP;
 627                 break;
 628             case SDLK_PAGEDOWN:
 629                 keysym = QEMU_KEY_CTRL_PAGEDOWN;
 630                 break;
 631             default:
 632                 break;
 633             }
 634         } else {
 635             switch (ev->key.keysym.sym) {
 636             case SDLK_UP:
 637                 keysym = QEMU_KEY_UP;
 638                 break;
 639             case SDLK_DOWN:
 640                 keysym = QEMU_KEY_DOWN;
 641                 break;
 642             case SDLK_LEFT:
 643                 keysym = QEMU_KEY_LEFT;
 644                 break;
 645             case SDLK_RIGHT:
 646                 keysym = QEMU_KEY_RIGHT;
 647                 break;
 648             case SDLK_HOME:
 649                 keysym = QEMU_KEY_HOME;
 650                 break;
 651             case SDLK_END:
 652                 keysym = QEMU_KEY_END;
 653                 break;
 654             case SDLK_PAGEUP:
 655                 keysym = QEMU_KEY_PAGEUP;
 656                 break;
 657             case SDLK_PAGEDOWN:
 658                 keysym = QEMU_KEY_PAGEDOWN;
 659                 break;
 660             case SDLK_BACKSPACE:
 661                 keysym = QEMU_KEY_BACKSPACE;
 662                 break;
 663             case SDLK_DELETE:
 664                 keysym = QEMU_KEY_DELETE;
 665                 break;
 666             default:
 667                 break;
 668             }
 669         }
 670         if (keysym) {
 671             kbd_put_keysym(keysym);
 672         } else if (ev->key.keysym.unicode != 0) {
 673             kbd_put_keysym(ev->key.keysym.unicode);
 674         }
 675     }
 676     if (qemu_console_is_graphic(NULL) && !gui_keysym) {
 677         sdl_process_key(&ev->key);
 678     }
 679 }
 680
 681 static void handle_keyup(SDL_Event *ev)
 682 {
 683     int mod_state;
 684
 685     if (!alt_grab) {
 686         mod_state = (ev->key.keysym.mod & gui_grab_code);
 687     } else {
 688         mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT));
 689     }
 690     if (!mod_state && gui_key_modifier_pressed) {
 691         gui_key_modifier_pressed = 0;
 692         gui_keysym = 0;
 693     }
 694     if (qemu_console_is_graphic(NULL) && !gui_keysym) {
 695         sdl_process_key(&ev->key);
 696     }
 697 }
 698
 699 static void handle_mousemotion(SDL_Event *ev)
 700 {
 701     int max_x, max_y;
 702
 703     if (qemu_console_is_graphic(NULL) &&
 704         (qemu_input_is_absolute() || absolute_enabled)) {
 705         max_x = real_screen->w - 1;
 706         max_y = real_screen->h - 1;
 707         if (gui_grab && (ev->motion.x == 0 || ev->motion.y == 0 ||
 708             ev->motion.x == max_x || ev->motion.y == max_y)) {
 709             sdl_grab_end();
 710         }
 711         if (!gui_grab &&
 712             (ev->motion.x > 0 && ev->motion.x < max_x &&
 713             ev->motion.y > 0 && ev->motion.y < max_y)) {
 714             sdl_grab_start();
 715         }
 716     }
 717     if (gui_grab || qemu_input_is_absolute() || absolute_enabled) {
 718         sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel,
 719                              ev->motion.x, ev->motion.y, ev->motion.state);
 720     }
 721 }
 722
 723 static void handle_mousebutton(SDL_Event *ev)
 724 {
 725     int buttonstate = SDL_GetMouseState(NULL, NULL);
 726     SDL_MouseButtonEvent *bev;
 727
 728     if (!qemu_console_is_graphic(NULL)) {
 729         return;
 730     }
 731
 732     bev = &ev->button;
 733     if (!gui_grab && !qemu_input_is_absolute()) {
 734         if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) {
 735             /* start grabbing all events */
 736             sdl_grab_start();
 737         }
 738     } else {
 739         if (ev->type == SDL_MOUSEBUTTONDOWN) {
 740             buttonstate |= SDL_BUTTON(bev->button);
 741         } else {
 742             buttonstate &= ~SDL_BUTTON(bev->button);
 743         }
 744         sdl_send_mouse_event(0, 0, bev->x, bev->y, buttonstate);
 745     }
 746 }
 747
 748 static void handle_activation(SDL_Event *ev)
 749 {
 750 #ifdef _WIN32
 751     /* Disable grab if the window no longer has the focus
 752      * (Windows-only workaround) */
 753     if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
 754         !ev->active.gain && !gui_fullscreen) {
 755         sdl_grab_end();
 756     }
 757 #endif
 758     if (!gui_grab && ev->active.gain && qemu_console_is_graphic(NULL) &&
 759         (qemu_input_is_absolute() || absolute_enabled)) {
 760         absolute_mouse_grab();
 761     }
 762     if (ev->active.state & SDL_APPACTIVE) {
 763         if (ev->active.gain) {
 764             /* Back to default interval */
 765             update_displaychangelistener(dcl, GUI_REFRESH_INTERVAL_DEFAULT);
 766         } else {
 767             /* Sleeping interval.  Not using the long default here as
 768              * sdl_refresh does not only update the guest screen, but
 769              * also checks for gui events. */
 770             update_displaychangelistener(dcl, 500);
 771         }
 772     }
 773 }
 774
 775 static void sdl_refresh(DisplayChangeListener *dcl)
 776 {
 777     SDL_Event ev1, *ev = &ev1;
 778     bool allow_close = true;
 779     int idle = 1;
 780
 781     if (last_vm_running != runstate_is_running()) {
 782         last_vm_running = runstate_is_running();
 783         sdl_update_caption();
 784     }
 785
 786     graphic_hw_update(NULL);
 787     SDL_EnableUNICODE(!qemu_console_is_graphic(NULL));
 788
 789     while (SDL_PollEvent(ev)) {
 790         switch (ev->type) {
 791         case SDL_VIDEOEXPOSE:
 792             sdl_update(dcl, 0, 0, real_screen->w, real_screen->h);
 793             break;
 794         case SDL_KEYDOWN:
 795             idle = 0;
 796             handle_keydown(ev);
 797             break;
 798         case SDL_KEYUP:
 799             idle = 0;
 800             handle_keyup(ev);
 801             break;
 802         case SDL_QUIT:
 803             if (opts->has_window_close && !opts->window_close) {
 804                 allow_close = false;
 805             }
 806             if (allow_close) {
 807                 no_shutdown = 0;
 808                 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI);
 809             }
 810             break;
 811         case SDL_MOUSEMOTION:
 812             idle = 0;
 813             handle_mousemotion(ev);
 814             break;
 815         case SDL_MOUSEBUTTONDOWN:
 816         case SDL_MOUSEBUTTONUP:
 817             idle = 0;
 818             handle_mousebutton(ev);
 819             break;
 820         case SDL_ACTIVEEVENT:
 821             handle_activation(ev);
 822             break;
 823         case SDL_VIDEORESIZE:
 824             sdl_scale(ev->resize.w, ev->resize.h);
 825             graphic_hw_invalidate(NULL);
 826             graphic_hw_update(NULL);
 827             break;
 828         default:
 829             break;
 830         }
 831     }
 832
 833     if (idle) {
 834         if (idle_counter < SDL_MAX_IDLE_COUNT) {
 835             idle_counter++;
 836             if (idle_counter >= SDL_MAX_IDLE_COUNT) {
 837                 dcl->update_interval = GUI_REFRESH_INTERVAL_DEFAULT;
 838             }
 839         }
 840     } else {
 841         idle_counter = 0;
 842         dcl->update_interval = SDL_REFRESH_INTERVAL_BUSY;
 843     }
 844 }
 845
 846 static void sdl_mouse_warp(DisplayChangeListener *dcl,
 847                            int x, int y, int on)
 848 {
 849     if (on) {
 850         if (!guest_cursor)
 851             sdl_show_cursor();
 852         if (gui_grab || qemu_input_is_absolute() || absolute_enabled) {
 853             SDL_SetCursor(guest_sprite);
 854             if (!qemu_input_is_absolute() && !absolute_enabled) {
 855                 SDL_WarpMouse(x, y);
 856             }
 857         }
 858     } else if (gui_grab)
 859         sdl_hide_cursor();
 860     guest_cursor = on;
 861     guest_x = x, guest_y = y;
 862 }
 863
 864 static void sdl_mouse_define(DisplayChangeListener *dcl,
 865                              QEMUCursor *c)
 866 {
 867     uint8_t *image, *mask;
 868     int bpl;
 869
 870     if (guest_sprite)
 871         SDL_FreeCursor(guest_sprite);
 872
 873     bpl = cursor_get_mono_bpl(c);
 874     image = g_malloc0(bpl * c->height);
 875     mask  = g_malloc0(bpl * c->height);
 876     cursor_get_mono_image(c, 0x000000, image);
 877     cursor_get_mono_mask(c, 0, mask);
 878     guest_sprite = SDL_CreateCursor(image, mask, c->width, c->height,
 879                                     c->hot_x, c->hot_y);
 880     g_free(image);
 881     g_free(mask);
 882
 883     if (guest_cursor &&
 884             (gui_grab || qemu_input_is_absolute() || absolute_enabled))
 885         SDL_SetCursor(guest_sprite);
 886 }
 887
 888 static void sdl_cleanup(void)
 889 {
 890     if (guest_sprite)
 891         SDL_FreeCursor(guest_sprite);
 892     SDL_QuitSubSystem(SDL_INIT_VIDEO);
 893 }
 894
 895 static const DisplayChangeListenerOps dcl_ops = {
 896     .dpy_name             = "sdl",
 897     .dpy_gfx_update       = sdl_update,
 898     .dpy_gfx_switch       = sdl_switch,
 899     .dpy_gfx_check_format = sdl_check_format,
 900     .dpy_refresh          = sdl_refresh,
 901     .dpy_mouse_set        = sdl_mouse_warp,
 902     .dpy_cursor_define    = sdl_mouse_define,
 903 };
 904
 905 static void sdl1_display_init(DisplayState *ds, DisplayOptions *o)
 906 {
 907     int flags;
 908     uint8_t data = 0;
 909     const SDL_VideoInfo *vi;
 910     SDL_SysWMinfo info;
 911     char *filename;
 912
 913     assert(o->type == DISPLAY_TYPE_SDL);
 914     opts = o;
 915 #if defined(__APPLE__)
 916     /* always use generic keymaps */
 917     if (!keyboard_layout)
 918         keyboard_layout = "en-us";
 919 #endif
 920     if(keyboard_layout) {
 921         kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout,
 922                                           &error_fatal);
 923     }
 924
 925     g_printerr("Running QEMU with SDL 1.2 is deprecated, and will be removed\n"
 926                "in a future release. Please switch to SDL 2.0 instead\n");
 927
 928     if (opts->has_full_screen && opts->full_screen) {
 929         setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 0);
 930     }
 931 #ifdef __linux__
 932     /* on Linux, SDL may use fbcon|directfb|svgalib when run without
 933      * accessible $DISPLAY to open X11 window.  This is often the case
 934      * when qemu is run using sudo.  But in this case, and when actually
 935      * run in X11 environment, SDL fights with X11 for the video card,
 936      * making current display unavailable, often until reboot.
 937      * So make x11 the default SDL video driver if this variable is unset.
 938      * This is a bit hackish but saves us from bigger problem.
 939      * Maybe it's a good idea to fix this in SDL instead.
 940      */
 941     setenv("SDL_VIDEODRIVER", "x11", 0);
 942 #endif
 943
 944     /* Enable normal up/down events for Caps-Lock and Num-Lock keys.
 945      * This requires SDL >= 1.2.14. */
 946     setenv("SDL_DISABLE_LOCK_KEYS", "1", 1);
 947
 948     flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
 949     if (SDL_Init (flags)) {
 950         fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",
 951                 SDL_GetError());
 952         exit(1);
 953     }
 954     vi = SDL_GetVideoInfo();
 955     host_format = *(vi->vfmt);
 956
 957     keycode_map = sdl_get_keymap(&keycode_maplen);
 958
 959     /* Load a 32x32x4 image. White pixels are transparent. */
 960     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp");
 961     if (filename) {
 962         SDL_Surface *image = SDL_LoadBMP(filename);
 963         if (image) {
 964             uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255);
 965             SDL_SetColorKey(image, SDL_SRCCOLORKEY, colorkey);
 966             SDL_WM_SetIcon(image, NULL);
 967         }
 968         g_free(filename);
 969     }
 970
 971     if (opts->has_full_screen && opts->full_screen) {
 972         gui_fullscreen = 1;
 973         sdl_grab_start();
 974     }
 975
 976     dcl = g_new0(DisplayChangeListener, 1);
 977     dcl->ops = &dcl_ops;
 978     register_displaychangelistener(dcl);
 979
 980     mouse_mode_notifier.notify = sdl_mouse_mode_change;
 981     qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier);
 982
 983     sdl_update_caption();
 984     SDL_EnableKeyRepeat(250, 50);
 985     gui_grab = 0;
 986
 987     sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0);
 988     sdl_cursor_normal = SDL_GetCursor();
 989
 990     memset(&info, 0, sizeof(info));
 991     SDL_VERSION(&info.version);
 992     if (SDL_GetWMInfo(&info)) {
 993         int i;
 994         for (i = 0; ; i++) {
 995             /* All consoles share the same window */
 996             QemuConsole *con = qemu_console_lookup_by_index(i);
 997             if (con) {
 998 #if defined(SDL_VIDEO_DRIVER_X11)
 999                 qemu_console_set_window_id(con, info.info.x11.wmwindow);
1000 #elif defined(SDL_VIDEO_DRIVER_NANOX) || \
1001       defined(SDL_VIDEO_DRIVER_WINDIB) || defined(SDL_VIDEO_DRIVER_DDRAW) || \
1002       defined(SDL_VIDEO_DRIVER_GAPI) || \
1003       defined(SDL_VIDEO_DRIVER_RISCOS)
1004                 qemu_console_set_window_id(con, (int) (uintptr_t) info.window);
1005 #else
1006                 qemu_console_set_window_id(con, info.data);
1007 #endif
1008             } else {
1009                 break;
1010             }
1011         }
1012     }
1013
1014     atexit(sdl_cleanup);
1015 }
1016
1017 static QemuDisplay qemu_display_sdl1 = {
1018     .type       = DISPLAY_TYPE_SDL,
1019     .init       = sdl1_display_init,
1020 };
1021
1022 static void register_sdl1(void)
1023 {
1024     qemu_display_register(&qemu_display_sdl1);
1025 }
1026
1027 type_init(register_sdl1);