modules/video_output/sdl.c

   1 /*****************************************************************************
   2  * sdl.c: SDL video output display method
   3  *****************************************************************************
   4  * Copyright (C) 1998-2009 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Samuel Hocevar <sam@zoy.org>
   8  *          Pierre Baillet <oct@zoy.org>
   9  *          Arnaud de Bossoreille de Ribou <bozo@via.ecp.fr>
  10  *          Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  25  *****************************************************************************/
  26
  27 /*****************************************************************************
  28  * Preamble
  29  *****************************************************************************/
  30 #ifdef HAVE_CONFIG_H
  31 # include "config.h"
  32 #endif
  33
  34 #include <vlc_common.h>
  35 #include <vlc_plugin.h>
  36 #include <vlc_vout_display.h>
  37 #include <vlc_picture_pool.h>
  38 #include "keythread.h"
  39
  40 #include <assert.h>
  41
  42 #include <SDL.h>
  43
  44 #ifndef WIN32
  45 # ifdef X_DISPLAY_MISSING
  46 #  error Xlib required due to XInitThreads
  47 # endif
  48 # include <vlc_xlib.h>
  49 #endif
  50
  51 /*****************************************************************************
  52  * Module descriptor
  53  *****************************************************************************/
  54 static int  Open (vlc_object_t *);
  55 static void Close(vlc_object_t *);
  56
  57 #define CHROMA_TEXT N_("SDL chroma format")
  58 #define CHROMA_LONGTEXT N_(\
  59     "Force the SDL renderer to use a specific chroma format instead of " \
  60     "trying to improve performances by using the most efficient one.")
  61
  62 vlc_module_begin()
  63     set_shortname("SDL")
  64     set_category(CAT_VIDEO)
  65     set_subcategory(SUBCAT_VIDEO_VOUT)
  66     set_description(N_("Simple DirectMedia Layer video output"))
  67     set_capability("vout display", 60)
  68     add_shortcut("sdl")
  69     add_string("sdl-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT, true)
  70     add_obsolete_string("sdl-video-driver") /* obsolete since 1.1.0 */
  71     set_callbacks(Open, Close)
  72 #if defined(__i386__) || defined(__x86_64__)
  73     /* On i386, SDL is linked against svgalib */
  74     cannot_unload_broken_library()
  75 #endif
  76 vlc_module_end()
  77
  78
  79 /*****************************************************************************
  80  * Local prototypes
  81  *****************************************************************************/
  82 static picture_pool_t *Pool  (vout_display_t *, unsigned);
  83 static void           PictureDisplay(vout_display_t *, picture_t *);
  84 static int            Control(vout_display_t *, int, va_list);
  85 static void           Manage(vout_display_t *);
  86
  87 /* */
  88 static int ConvertKey(SDLKey);
  89
  90 /* */
  91 static vlc_mutex_t sdl_lock = VLC_STATIC_MUTEX;
  92
  93 /* */
  94 struct vout_display_sys_t {
  95     vout_display_place_t place;
  96
  97     SDL_Surface          *display;
  98     int                  display_bpp;
  99     uint32_t             display_flags;
 100
 101     unsigned int         desktop_width;
 102     unsigned int         desktop_height;
 103
 104     /* For YUV output */
 105     SDL_Overlay          *overlay;
 106     bool                 is_uv_swapped;
 107
 108     /* */
 109     picture_pool_t       *pool;
 110     key_thread_t         *keys;
 111 };
 112
 113 /**
 114  * This function initializes SDL vout method.
 115  */
 116 static int Open(vlc_object_t *object)
 117 {
 118     vout_display_t *vd = (vout_display_t *)object;
 119     vout_display_sys_t *sys;
 120
 121 #ifndef WIN32
 122     if (!vlc_xlib_init (object))
 123         return VLC_EGENERIC;
 124 #endif
 125
 126     /* XXX: check for conflicts with the SDL audio output */
 127     vlc_mutex_lock(&sdl_lock);
 128
 129     /* Check if SDL video module has been initialized */
 130     if (SDL_WasInit(SDL_INIT_VIDEO) != 0) {
 131         vlc_mutex_unlock(&sdl_lock);
 132         return VLC_EGENERIC;
 133     }
 134
 135     vd->sys = sys = calloc(1, sizeof(*sys));
 136     if (!sys) {
 137         vlc_mutex_unlock(&sdl_lock);
 138         return VLC_ENOMEM;
 139     }
 140
 141     /* */
 142     int sdl_flags = SDL_INIT_VIDEO;
 143 #ifndef WIN32
 144     /* Win32 SDL implementation doesn't support SDL_INIT_EVENTTHREAD yet*/
 145     sdl_flags |= SDL_INIT_EVENTTHREAD;
 146 #endif
 147 #ifndef NDEBUG
 148     /* In debug mode you may want vlc to dump a core instead of staying stuck */
 149     sdl_flags |= SDL_INIT_NOPARACHUTE;
 150 #endif
 151
 152     /* Initialize library */
 153     if (SDL_Init(sdl_flags) < 0) {
 154         vlc_mutex_unlock(&sdl_lock);
 155
 156         msg_Err(vd, "cannot initialize SDL (%s)", SDL_GetError());
 157         free(sys);
 158         return VLC_EGENERIC;
 159     }
 160     vlc_mutex_unlock(&sdl_lock);
 161
 162     /* Translate keys into unicode */
 163     SDL_EnableUNICODE(1);
 164
 165     /* Get the desktop resolution */
 166     /* FIXME: SDL has a problem with virtual desktop */
 167     sys->desktop_width  = SDL_GetVideoInfo()->current_w;
 168     sys->desktop_height = SDL_GetVideoInfo()->current_h;
 169
 170     /* */
 171     video_format_t fmt = vd->fmt;
 172
 173     /* */
 174     vout_display_info_t info = vd->info;
 175
 176     /* Set main window's size */
 177     int display_width;
 178     int display_height;
 179     if (vd->cfg->is_fullscreen) {
 180         display_width  = sys->desktop_width;
 181         display_height = sys->desktop_height;
 182     } else {
 183         display_width  = vd->cfg->display.width;
 184         display_height = vd->cfg->display.height;
 185     }
 186
 187     /* Initialize flags and cursor */
 188     sys->display_flags = SDL_ANYFORMAT | SDL_HWPALETTE | SDL_HWSURFACE | SDL_DOUBLEBUF;
 189     sys->display_flags |= vd->cfg->is_fullscreen ? SDL_FULLSCREEN : SDL_RESIZABLE;
 190
 191     sys->display_bpp = SDL_VideoModeOK(display_width, display_height,
 192                                        16, sys->display_flags);
 193     if (sys->display_bpp == 0) {
 194         msg_Err(vd, "no video mode available");
 195         goto error;
 196     }
 197
 198     sys->display = SDL_SetVideoMode(display_width, display_height,
 199                                     sys->display_bpp, sys->display_flags);
 200     if (!sys->display) {
 201         msg_Err(vd, "cannot set video mode");
 202         goto error;
 203     }
 204
 205     /* We keep the surface locked forever */
 206     SDL_LockSurface(sys->display);
 207
 208     /* */
 209     vlc_fourcc_t forced_chroma = 0;
 210     char *psz_chroma = var_CreateGetNonEmptyString(vd, "sdl-chroma");
 211     if (psz_chroma) {
 212         forced_chroma = vlc_fourcc_GetCodecFromString(VIDEO_ES, psz_chroma);
 213         if (forced_chroma)
 214             msg_Dbg(vd, "Forcing chroma to 0x%.8x (%4.4s)",
 215                     forced_chroma, (const char*)&forced_chroma);
 216         free(psz_chroma);
 217     }
 218
 219     /* Try to open an overlay if requested */
 220     sys->overlay = NULL;
 221     const bool is_overlay = var_CreateGetBool(vd, "overlay");
 222     if (is_overlay) {
 223         static const struct
 224         {
 225             vlc_fourcc_t vlc;
 226             uint32_t     sdl;
 227         } vlc_to_sdl[] = {
 228             { VLC_CODEC_YV12, SDL_YV12_OVERLAY },
 229             { VLC_CODEC_I420, SDL_IYUV_OVERLAY },
 230             { VLC_CODEC_YUYV, SDL_YUY2_OVERLAY },
 231             { VLC_CODEC_UYVY, SDL_UYVY_OVERLAY },
 232             { VLC_CODEC_YVYU, SDL_YVYU_OVERLAY },
 233
 234             { 0, 0 }
 235         };
 236         const vlc_fourcc_t forced_chromas[] = {
 237             forced_chroma, 0
 238         };
 239         const vlc_fourcc_t *fallback_chromas =
 240             vlc_fourcc_GetYUVFallback(fmt.i_chroma);
 241         const vlc_fourcc_t *chromas = forced_chroma ? forced_chromas : fallback_chromas;
 242
 243         for (int pass = forced_chroma ? 1 : 0; pass < 2 && !sys->overlay; pass++) {
 244             for (int i = 0; chromas[i] != 0; i++) {
 245                 const vlc_fourcc_t vlc = chromas[i];
 246
 247                 uint32_t sdl = 0;
 248                 for (int j = 0; vlc_to_sdl[j].vlc != 0 && !sdl; j++) {
 249                     if (vlc_to_sdl[j].vlc == vlc)
 250                         sdl = vlc_to_sdl[j].sdl;
 251                 }
 252                 if (!sdl)
 253                     continue;
 254
 255                 sys->overlay = SDL_CreateYUVOverlay(fmt.i_width, fmt.i_height,
 256                                                     sdl, sys->display);
 257                 if (sys->overlay && !sys->overlay->hw_overlay && pass == 0) {
 258                     /* Ignore non hardware overlay surface in first pass */
 259                     SDL_FreeYUVOverlay(sys->overlay);
 260                     sys->overlay = NULL;
 261                 }
 262                 if (sys->overlay) {
 263                     /* We keep the surface locked forever */
 264                     SDL_LockYUVOverlay(sys->overlay);
 265
 266                     fmt.i_chroma = vlc;
 267                     sys->is_uv_swapped = vlc_fourcc_AreUVPlanesSwapped(fmt.i_chroma,
 268                                                                        vd->fmt.i_chroma);
 269                     if (sys->is_uv_swapped)
 270                         fmt.i_chroma = vd->fmt.i_chroma;
 271                     break;
 272                 }
 273             }
 274         }
 275     } else {
 276         msg_Warn(vd, "SDL overlay disabled by the user");
 277     }
 278
 279     /* */
 280     vout_display_cfg_t place_cfg = *vd->cfg;
 281     place_cfg.display.width  = display_width;
 282     place_cfg.display.height = display_height;
 283     vout_display_PlacePicture(&sys->place, &vd->source, &place_cfg, !sys->overlay);
 284
 285     /* If no overlay, fallback to software output */
 286     if (!sys->overlay) {
 287         /* */
 288         switch (sys->display->format->BitsPerPixel) {
 289         case 8:
 290             fmt.i_chroma = VLC_CODEC_RGB8;
 291             break;
 292         case 15:
 293             fmt.i_chroma = VLC_CODEC_RGB15;
 294             break;
 295         case 16:
 296             fmt.i_chroma = VLC_CODEC_RGB16;
 297             break;
 298         case 24:
 299             fmt.i_chroma = VLC_CODEC_RGB24;
 300             break;
 301         case 32:
 302             fmt.i_chroma = VLC_CODEC_RGB32;
 303             break;
 304         default:
 305             msg_Err(vd, "unknown screen depth %i",
 306                     sys->display->format->BitsPerPixel);
 307             goto error;
 308         }
 309
 310         /* All we have is an RGB image with square pixels */
 311         fmt.i_width  = display_width;
 312         fmt.i_height = display_height;
 313         fmt.i_rmask = sys->display->format->Rmask;
 314         fmt.i_gmask = sys->display->format->Gmask;
 315         fmt.i_bmask = sys->display->format->Bmask;
 316
 317         info.has_pictures_invalid = true;
 318     }
 319
 320     if (vd->cfg->display.title)
 321         SDL_WM_SetCaption(vd->cfg->display.title,
 322                           vd->cfg->display.title);
 323     else if (!sys->overlay)
 324         SDL_WM_SetCaption(VOUT_TITLE " (software RGB SDL output)",
 325                           VOUT_TITLE " (software RGB SDL output)");
 326     else if (sys->overlay->hw_overlay)
 327         SDL_WM_SetCaption(VOUT_TITLE " (hardware YUV SDL output)",
 328                           VOUT_TITLE " (hardware YUV SDL output)");
 329     else
 330         SDL_WM_SetCaption(VOUT_TITLE " (software YUV SDL output)",
 331                           VOUT_TITLE " (software YUV SDL output)");
 332
 333     /* Setup events */
 334     SDL_EventState(SDL_KEYUP, SDL_IGNORE);               /* ignore keys up */
 335
 336     /* Setup vout_display now that everything is fine */
 337     vd->fmt = fmt;
 338     vd->info = info;
 339
 340     vd->pool    = Pool;
 341     vd->prepare = NULL;
 342     vd->display = PictureDisplay;
 343     vd->control = Control;
 344     vd->manage  = Manage;
 345
 346     /* */
 347     vout_display_SendEventDisplaySize(vd, display_width, display_height, vd->cfg->is_fullscreen);
 348
 349     sys->keys = vlc_CreateKeyThread (vd);
 350     return VLC_SUCCESS;
 351
 352 error:
 353     msg_Err(vd, "cannot set up SDL (%s)", SDL_GetError());
 354
 355     if (sys->display) {
 356         SDL_UnlockSurface(sys->display);
 357         SDL_FreeSurface(sys->display);
 358     }
 359
 360     vlc_mutex_lock(&sdl_lock);
 361     SDL_QuitSubSystem(SDL_INIT_VIDEO);
 362     vlc_mutex_unlock(&sdl_lock);
 363
 364     free(sys);
 365     return VLC_EGENERIC;
 366 }
 367
 368 /**
 369  * Close a SDL video output
 370  */
 371 static void Close(vlc_object_t *object)
 372 {
 373     vout_display_t *vd = (vout_display_t *)object;
 374     vout_display_sys_t *sys = vd->sys;
 375
 376     vlc_DestroyKeyThread(sys->keys);
 377
 378     if (sys->pool)
 379         picture_pool_Delete(sys->pool);
 380
 381     if (sys->overlay) {
 382         SDL_LockYUVOverlay(sys->overlay);
 383         SDL_FreeYUVOverlay(sys->overlay);
 384     }
 385     SDL_UnlockSurface (sys->display);
 386     SDL_FreeSurface(sys->display);
 387
 388     vlc_mutex_lock(&sdl_lock);
 389     SDL_QuitSubSystem(SDL_INIT_VIDEO);
 390     vlc_mutex_unlock(&sdl_lock);
 391
 392     free(sys);
 393 }
 394
 395 /**
 396  * Return a pool of direct buffers
 397  */
 398 static picture_pool_t *Pool(vout_display_t *vd, unsigned count)
 399 {
 400     vout_display_sys_t *sys = vd->sys;
 401     VLC_UNUSED(count);
 402
 403     if (!sys->pool) {
 404         picture_resource_t rsc;
 405
 406         memset(&rsc, 0, sizeof(rsc));
 407
 408         if (sys->overlay) {
 409             SDL_Overlay *ol = sys->overlay;
 410
 411             for (int i = 0; i < ol->planes; i++) {
 412                 rsc.p[i].p_pixels = ol->pixels[ i > 0 && sys->is_uv_swapped ? (3-i) : i];
 413                 rsc.p[i].i_pitch  = ol->pitches[i > 0 && sys->is_uv_swapped ? (3-i) : i];
 414                 rsc.p[i].i_lines  = ol->h;
 415                 if (ol->format == SDL_YV12_OVERLAY ||
 416                     ol->format == SDL_IYUV_OVERLAY)
 417                     rsc.p[i].i_lines /= 2;
 418
 419             }
 420         } else {
 421             const int x = sys->place.x;
 422             const int y = sys->place.y;
 423
 424             SDL_Surface *sf = sys->display;
 425             SDL_FillRect(sf, NULL, 0);
 426
 427             assert(x >= 0 && y >= 0);
 428             rsc.p[0].p_pixels = (uint8_t*)sf->pixels + y * sf->pitch + x * ((sf->format->BitsPerPixel + 7) / 8);
 429             rsc.p[0].i_pitch  = sf->pitch;
 430             rsc.p[0].i_lines  = vd->fmt.i_height;
 431         }
 432
 433         picture_t *picture = picture_NewFromResource(&vd->fmt, &rsc);;
 434         if (!picture)
 435             return NULL;
 436
 437         sys->pool = picture_pool_New(1, &picture);
 438     }
 439
 440     return sys->pool;
 441 }
 442
 443 /**
 444  * Display a picture
 445  */
 446 static void PictureDisplay(vout_display_t *vd, picture_t *p_pic)
 447 {
 448     vout_display_sys_t *sys = vd->sys;
 449
 450     if (sys->overlay) {
 451         SDL_Rect disp;
 452         disp.x = sys->place.x;
 453         disp.y = sys->place.y;
 454         disp.w = sys->place.width;
 455         disp.h = sys->place.height;
 456
 457         SDL_UnlockYUVOverlay(sys->overlay);
 458         SDL_DisplayYUVOverlay(sys->overlay , &disp);
 459         SDL_LockYUVOverlay(sys->overlay);
 460     } else {
 461         SDL_Flip(sys->display);
 462     }
 463
 464     picture_Release(p_pic);
 465 }
 466
 467
 468 /**
 469  * Control for vout display
 470  */
 471 static int Control(vout_display_t *vd, int query, va_list args)
 472 {
 473     vout_display_sys_t *sys = vd->sys;
 474
 475     switch (query)
 476     {
 477     case VOUT_DISPLAY_HIDE_MOUSE:
 478         SDL_ShowCursor(0);
 479         return VLC_SUCCESS;
 480
 481     case VOUT_DISPLAY_CHANGE_DISPLAY_SIZE: {
 482         const vout_display_cfg_t *cfg = va_arg(args, const vout_display_cfg_t *);
 483
 484         /* */
 485         sys->display = SDL_SetVideoMode(cfg->display.width,
 486                                         cfg->display.height,
 487                                         sys->display_bpp, sys->display_flags);
 488         if (!sys->display) {
 489             sys->display = SDL_SetVideoMode(vd->cfg->display.width,
 490                                             vd->cfg->display.height,
 491                                             sys->display_bpp, sys->display_flags);
 492             return VLC_EGENERIC;
 493         }
 494         if (sys->overlay)
 495             vout_display_PlacePicture(&sys->place, &vd->source, cfg, !sys->overlay);
 496         else
 497             vout_display_SendEventPicturesInvalid(vd);
 498         return VLC_SUCCESS;
 499     }
 500     case VOUT_DISPLAY_CHANGE_FULLSCREEN: {
 501         vout_display_cfg_t cfg = *va_arg(args, const vout_display_cfg_t *);
 502
 503         /* Fix flags */
 504         sys->display_flags &= ~(SDL_FULLSCREEN | SDL_RESIZABLE);
 505         sys->display_flags |= cfg.is_fullscreen ? SDL_FULLSCREEN : SDL_RESIZABLE;
 506
 507         if (cfg.is_fullscreen) {
 508             cfg.display.width = sys->desktop_width;
 509             cfg.display.height = sys->desktop_height;
 510         }
 511
 512         if (sys->overlay) {
 513             sys->display = SDL_SetVideoMode(cfg.display.width, cfg.display.height,
 514                                             sys->display_bpp, sys->display_flags);
 515
 516             vout_display_PlacePicture(&sys->place, &vd->source, &cfg, !sys->overlay);
 517         }
 518         vout_display_SendEventDisplaySize(vd, cfg.display.width, cfg.display.height, cfg.is_fullscreen);
 519         return VLC_SUCCESS;
 520     }
 521     case VOUT_DISPLAY_CHANGE_ZOOM:
 522     case VOUT_DISPLAY_CHANGE_DISPLAY_FILLED:
 523     case VOUT_DISPLAY_CHANGE_SOURCE_ASPECT: {
 524         const vout_display_cfg_t *cfg;
 525         const video_format_t *source;
 526
 527         if (query == VOUT_DISPLAY_CHANGE_SOURCE_ASPECT) {
 528             source = va_arg(args, const video_format_t *);
 529             cfg = vd->cfg;
 530         } else {
 531             source = &vd->source;
 532             cfg = va_arg(args, const vout_display_cfg_t *);
 533         }
 534         if (sys->overlay) {
 535             sys->display = SDL_SetVideoMode(cfg->display.width, cfg->display.height,
 536                                             sys->display_bpp, sys->display_flags);
 537
 538             vout_display_PlacePicture(&sys->place, source, cfg, !sys->overlay);
 539         } else {
 540             vout_display_SendEventPicturesInvalid(vd);
 541         }
 542         return VLC_SUCCESS;
 543     }
 544
 545     case VOUT_DISPLAY_RESET_PICTURES: {
 546         /* */
 547         assert(!sys->overlay);
 548
 549         /* */
 550         if (sys->pool)
 551             picture_pool_Delete(sys->pool);
 552         sys->pool = NULL;
 553
 554         vout_display_PlacePicture(&sys->place, &vd->source, vd->cfg, !sys->overlay);
 555
 556         /* */
 557         vd->fmt.i_width  = sys->place.width;
 558         vd->fmt.i_height = sys->place.height;
 559         return VLC_SUCCESS;
 560     }
 561
 562     case VOUT_DISPLAY_CHANGE_SOURCE_CROP:
 563     case VOUT_DISPLAY_CHANGE_WINDOW_STATE:
 564         /* I don't think it is possible to support with SDL:
 565          * - crop
 566          * - on top
 567          */
 568         return VLC_EGENERIC;
 569
 570     default:
 571         msg_Err(vd, "Unsupported query in vout display SDL");
 572         return VLC_EGENERIC;
 573     }
 574 }
 575
 576 /**
 577  * Proccess pending event
 578  */
 579 static void Manage(vout_display_t *vd)
 580 {
 581     vout_display_sys_t *sys = vd->sys;
 582     SDL_Event event;
 583
 584     /* */
 585     while (SDL_PollEvent(&event)) {
 586         switch (event.type) {
 587         case SDL_QUIT:
 588             vout_display_SendEventClose(vd);
 589             break;
 590
 591         case SDL_KEYDOWN: {
 592             /* convert the key if possible */
 593             int key = ConvertKey(event.key.keysym.sym);
 594
 595             if (!key) {
 596                 /* Find the right caracter */
 597                 if ((event.key.keysym.unicode & 0xff80) == 0) {
 598                     key = event.key.keysym.unicode & 0x7f;
 599                     /* FIXME: find a better solution than this
 600                               hack to find the right caracter */
 601                     if (key >= 1 && key <= 26)
 602                         key += 96;
 603                     else if (key >= 65 && key <= 90)
 604                         key += 32;
 605                 }
 606             }
 607             if (!key)
 608                 break;
 609
 610             if (event.key.keysym.mod & KMOD_SHIFT)
 611                 key |= KEY_MODIFIER_SHIFT;
 612             if (event.key.keysym.mod & KMOD_CTRL)
 613                 key |= KEY_MODIFIER_CTRL;
 614             if (event.key.keysym.mod & KMOD_ALT)
 615                 key |= KEY_MODIFIER_ALT;
 616             vlc_EmitKey(sys->keys, key);
 617             break;
 618         }
 619
 620         case SDL_MOUSEBUTTONDOWN:
 621         case SDL_MOUSEBUTTONUP: {
 622             static const struct { int sdl; int vlc; } buttons[] = {
 623                 { SDL_BUTTON_LEFT,      MOUSE_BUTTON_LEFT },
 624                 { SDL_BUTTON_MIDDLE,    MOUSE_BUTTON_CENTER },
 625                 { SDL_BUTTON_RIGHT,     MOUSE_BUTTON_RIGHT },
 626                 { SDL_BUTTON_WHEELUP,   MOUSE_BUTTON_WHEEL_UP },
 627                 { SDL_BUTTON_WHEELDOWN, MOUSE_BUTTON_WHEEL_DOWN },
 628                 { -1, -1 },
 629             };
 630
 631             SDL_ShowCursor(1);
 632             for (int i = 0; buttons[i].sdl != -1; i++) {
 633                 if (buttons[i].sdl == event.button.button) {
 634                     if (event.type == SDL_MOUSEBUTTONDOWN)
 635                         vout_display_SendEventMousePressed(vd, buttons[i].vlc);
 636                     else
 637                         vout_display_SendEventMouseReleased(vd, buttons[i].vlc);
 638                 }
 639             }
 640             break;
 641         }
 642
 643         case SDL_MOUSEMOTION: {
 644             if (sys->place.width <= 0 || sys->place.height <= 0)
 645                 break;
 646
 647             const int x = (int64_t)(event.motion.x - sys->place.x) * vd->source.i_width  / sys->place.width;
 648             const int y = (int64_t)(event.motion.y - sys->place.y) * vd->source.i_height / sys->place.height;
 649
 650             SDL_ShowCursor(1);
 651             vout_display_SendEventMouseMoved(vd, x, y);
 652             break;
 653         }
 654
 655         case SDL_VIDEORESIZE:
 656             vout_display_SendEventDisplaySize(vd, event.resize.w, event.resize.h, vd->cfg->is_fullscreen);
 657             break;
 658
 659         default:
 660             break;
 661         }
 662     }
 663
 664 }
 665
 666 static const struct {
 667     SDLKey sdl_key;
 668     int    vlckey;
 669
 670 } sdlkeys_to_vlckeys[] = {
 671     { SDLK_F1,  KEY_F1 },
 672     { SDLK_F2,  KEY_F2 },
 673     { SDLK_F3,  KEY_F3 },
 674     { SDLK_F4,  KEY_F4 },
 675     { SDLK_F5,  KEY_F5 },
 676     { SDLK_F6,  KEY_F6 },
 677     { SDLK_F7,  KEY_F7 },
 678     { SDLK_F8,  KEY_F8 },
 679     { SDLK_F9,  KEY_F9 },
 680     { SDLK_F10, KEY_F10 },
 681     { SDLK_F11, KEY_F11 },
 682     { SDLK_F12, KEY_F12 },
 683
 684     { SDLK_RETURN, KEY_ENTER },
 685     { SDLK_KP_ENTER, KEY_ENTER },
 686     { SDLK_SPACE, ' ' },
 687     { SDLK_ESCAPE, KEY_ESC },
 688
 689     { SDLK_MENU, KEY_MENU },
 690     { SDLK_LEFT, KEY_LEFT },
 691     { SDLK_RIGHT, KEY_RIGHT },
 692     { SDLK_UP, KEY_UP },
 693     { SDLK_DOWN, KEY_DOWN },
 694
 695     { SDLK_HOME, KEY_HOME },
 696     { SDLK_END, KEY_END },
 697     { SDLK_PAGEUP, KEY_PAGEUP },
 698     { SDLK_PAGEDOWN,  KEY_PAGEDOWN },
 699
 700     { SDLK_INSERT, KEY_INSERT },
 701     { SDLK_DELETE, KEY_DELETE },
 702     /*TODO: find a equivalent for SDL
 703     { , KEY_MEDIA_NEXT_TRACK }
 704     { , KEY_MEDIA_PREV_TRACK }
 705     { , KEY_VOLUME_MUTE }
 706     { , KEY_VOLUME_DOWN }
 707     { , KEY_VOLUME_UP }
 708     { , KEY_MEDIA_PLAY_PAUSE }
 709     { , KEY_MEDIA_PLAY_PAUSE }*/
 710
 711     { 0, 0 }
 712 };
 713
 714 static int ConvertKey(SDLKey sdl_key)
 715 {
 716     for (int i = 0; sdlkeys_to_vlckeys[i].sdl_key != 0; i++) {
 717         if (sdlkeys_to_vlckeys[i].sdl_key == sdl_key)
 718             return sdlkeys_to_vlckeys[i].vlckey;
 719     }
 720     return 0;
 721 }