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