git.sesse.net Git - vlc/blob - modules/video_output/sdl.c

   1 /*****************************************************************************
   2  * sdl.c: SDL video output display method
   3  *****************************************************************************
   4  * Copyright (C) 1998-2001 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  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #include <errno.h>                                                 /* ENOMEM */
  30
  31 #ifdef HAVE_CONFIG_H
  32 # include "config.h"
  33 #endif
  34
  35 #include <vlc/vlc.h>
  36 #include <vlc_plugin.h>
  37 #include <vlc_interface.h>
  38 #include <vlc_playlist.h>
  39 #include <vlc_vout.h>
  40 #include <vlc_keys.h>
  41 //#include <vlc_aout.h>
  42
  43 #include <sys/types.h>
  44 #ifndef WIN32
  45 #   include <netinet/in.h>                            /* BSD: struct in_addr */
  46 #endif
  47
  48 #include SDL_INCLUDE_FILE
  49
  50 /* SDL is not able to crop overlays - so use only 1 direct buffer */
  51 #define SDL_MAX_DIRECTBUFFERS 1
  52 #define SDL_DEFAULT_BPP 16
  53
  54 /*****************************************************************************
  55  * vout_sys_t: video output SDL method descriptor
  56  *****************************************************************************
  57  * This structure is part of the video output thread descriptor.
  58  * It describes the SDL specific properties of an output thread.
  59  *****************************************************************************/
  60 struct vout_sys_t
  61 {
  62     SDL_Surface *   p_display;                             /* display device */
  63
  64     int i_width;
  65     int i_height;
  66
  67 #if SDL_VERSION_ATLEAST(1,2,10)
  68     unsigned int i_desktop_width;
  69     unsigned int i_desktop_height;
  70 #endif
  71
  72     /* For YUV output */
  73     SDL_Overlay * p_overlay;   /* An overlay we keep to grab the XVideo port */
  74
  75     /* For RGB output */
  76     int i_surfaces;
  77
  78     bool  b_cursor;
  79     bool  b_cursor_autohidden;
  80     mtime_t     i_lastmoved;
  81     mtime_t     i_mouse_hide_timeout;
  82     mtime_t     i_lastpressed;                        /* to track dbl-clicks */
  83 };
  84
  85 /*****************************************************************************
  86  * picture_sys_t: direct buffer method descriptor
  87  *****************************************************************************
  88  * This structure is part of the picture descriptor, it describes the
  89  * SDL specific properties of a direct buffer.
  90  *****************************************************************************/
  91 struct picture_sys_t
  92 {
  93     SDL_Overlay *p_overlay;
  94 };
  95
  96 /*****************************************************************************
  97  * Local prototypes
  98  *****************************************************************************/
  99 static int  Open      ( vlc_object_t * );
 100 static void Close     ( vlc_object_t * );
 101 static int  Init      ( vout_thread_t * );
 102 static void End       ( vout_thread_t * );
 103 static int  Manage    ( vout_thread_t * );
 104 static void Display   ( vout_thread_t *, picture_t * );
 105
 106 static int  OpenDisplay     ( vout_thread_t * );
 107 static void CloseDisplay    ( vout_thread_t * );
 108 static int  NewPicture      ( vout_thread_t *, picture_t * );
 109 static void SetPalette      ( vout_thread_t *,
 110                               uint16_t *, uint16_t *, uint16_t * );
 111
 112 static int ConvertKey( SDLKey );
 113
 114
 115 #define CHROMA_TEXT N_("SDL chroma format")
 116 #define CHROMA_LONGTEXT N_( \
 117     "Force the SDL renderer to use a specific chroma format instead of " \
 118     "trying to improve performances by using the most efficient one.")
 119
 120 /*****************************************************************************
 121  * Module descriptor
 122  *****************************************************************************/
 123 vlc_module_begin();
 124     set_shortname( "SDL" );
 125     set_category( CAT_VIDEO );
 126     set_subcategory( SUBCAT_VIDEO_VOUT );
 127     set_description( N_("Simple DirectMedia Layer video output") );
 128     set_capability( "video output", 60 );
 129     add_shortcut( "sdl" );
 130     add_string( "sdl-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT, true );
 131     set_callbacks( Open, Close );
 132 #if defined( __i386__ ) || defined( __x86_64__ )
 133     /* On i386, SDL is linked against svgalib */
 134     linked_with_a_crap_library_which_uses_atexit();
 135 #endif
 136 vlc_module_end();
 137
 138 /*****************************************************************************
 139  * OpenVideo: allocate SDL video thread output method
 140  *****************************************************************************
 141  * This function allocate and initialize a SDL vout method. It uses some of the
 142  * vout properties to choose the correct mode, and change them according to the
 143  * mode actually used.
 144  *****************************************************************************/
 145 static int Open ( vlc_object_t *p_this )
 146 {
 147     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 148     /* XXX: check for conflicts with the SDL audio output */
 149     vlc_mutex_t *lock = var_AcquireMutex( "sdl" );
 150
 151 #ifdef HAVE_SETENV
 152     char *psz_method;
 153 #endif
 154
 155     if( lock == NULL )
 156         return VLC_ENOMEM;
 157
 158     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 159     if( p_vout->p_sys == NULL )
 160     {
 161         vlc_mutex_unlock( lock );
 162         return VLC_ENOMEM;
 163     }
 164
 165     /* Check if SDL video module has been initialized */
 166     if( SDL_WasInit( SDL_INIT_VIDEO ) != 0 )
 167     {
 168         vlc_mutex_unlock( lock );
 169         free( p_vout->p_sys );
 170         return VLC_EGENERIC;
 171     }
 172
 173     /* Allocate structure */
 174     p_vout->pf_init = Init;
 175     p_vout->pf_end = End;
 176     p_vout->pf_manage = Manage;
 177     p_vout->pf_render = NULL;
 178     p_vout->pf_display = Display;
 179     p_vout->pf_control = NULL;
 180
 181 #ifdef HAVE_SETENV
 182     psz_method = config_GetPsz( p_vout, "vout" );
 183     if( psz_method )
 184     {
 185         while( *psz_method && *psz_method != ':' )
 186         {
 187             psz_method++;
 188         }
 189
 190         if( *psz_method )
 191         {
 192             setenv( "SDL_VIDEODRIVER", psz_method + 1, 1 );
 193         }
 194     }
 195 #endif
 196
 197     /* Initialize library */
 198     if( SDL_Init( SDL_INIT_VIDEO
 199 #ifndef WIN32
 200     /* Win32 SDL implementation doesn't support SDL_INIT_EVENTTHREAD yet*/
 201                 | SDL_INIT_EVENTTHREAD
 202 #endif
 203 #ifndef NDEBUG
 204     /* In debug mode you may want vlc to dump a core instead of staying
 205      * stuck */
 206                 | SDL_INIT_NOPARACHUTE
 207 #endif
 208                 ) < 0 )
 209     {
 210         msg_Err( p_vout, "cannot initialize SDL (%s)", SDL_GetError() );
 211         free( p_vout->p_sys );
 212         vlc_mutex_unlock( lock );
 213         return VLC_EGENERIC;
 214     }
 215
 216     vlc_mutex_unlock( lock );
 217
 218     /* Translate keys into unicode */
 219     SDL_EnableUNICODE(1);
 220
 221     /* Get the desktop resolution */
 222 #if SDL_VERSION_ATLEAST(1,2,10)
 223     /* FIXME: SDL has a problem with virtual desktop */
 224     p_vout->p_sys->i_desktop_width = SDL_GetVideoInfo()->current_w;
 225     p_vout->p_sys->i_desktop_height = SDL_GetVideoInfo()->current_h;
 226 #endif
 227
 228     /* Create the cursor */
 229     p_vout->p_sys->b_cursor = 1;
 230     p_vout->p_sys->b_cursor_autohidden = 0;
 231     p_vout->p_sys->i_lastmoved = p_vout->p_sys->i_lastpressed = mdate();
 232     p_vout->p_sys->i_mouse_hide_timeout =
 233         var_GetInteger(p_vout, "mouse-hide-timeout") * 1000;
 234
 235     if( OpenDisplay( p_vout ) )
 236     {
 237         msg_Err( p_vout, "cannot set up SDL (%s)", SDL_GetError() );
 238         SDL_QuitSubSystem( SDL_INIT_VIDEO );
 239         free( p_vout->p_sys );
 240         return VLC_EGENERIC;
 241     }
 242
 243     return VLC_SUCCESS;
 244 }
 245
 246 /*****************************************************************************
 247  * Init: initialize SDL video thread output method
 248  *****************************************************************************
 249  * This function initialize the SDL display device.
 250  *****************************************************************************/
 251 static int Init( vout_thread_t *p_vout )
 252 {
 253     int i_index;
 254     picture_t *p_pic;
 255
 256     p_vout->p_sys->i_surfaces = 0;
 257
 258     I_OUTPUTPICTURES = 0;
 259
 260     /* Initialize the output structure */
 261     if( p_vout->p_sys->p_overlay == NULL )
 262     {
 263         /* All we have is an RGB image with square pixels */
 264         p_vout->output.i_width  = p_vout->p_sys->i_width;
 265         p_vout->output.i_height = p_vout->p_sys->i_height;
 266         p_vout->output.i_aspect = p_vout->output.i_width
 267                                    * VOUT_ASPECT_FACTOR
 268                                    / p_vout->output.i_height;
 269     }
 270     else
 271     {
 272         /* We may need to convert the chroma, but at least we keep the
 273          * aspect ratio */
 274         p_vout->output.i_width  = p_vout->render.i_width;
 275         p_vout->output.i_height = p_vout->render.i_height;
 276         p_vout->output.i_aspect = p_vout->render.i_aspect;
 277     }
 278
 279     /* Try to initialize SDL_MAX_DIRECTBUFFERS direct buffers */
 280     while( I_OUTPUTPICTURES < SDL_MAX_DIRECTBUFFERS )
 281     {
 282         p_pic = NULL;
 283
 284         /* Find an empty picture slot */
 285         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 286         {
 287             if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 288             {
 289                 p_pic = p_vout->p_picture + i_index;
 290                 break;
 291             }
 292         }
 293
 294         /* Allocate the picture if we found one */
 295         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
 296         {
 297             break;
 298         }
 299
 300         p_pic->i_status = DESTROYED_PICTURE;
 301         p_pic->i_type   = DIRECT_PICTURE;
 302
 303         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 304
 305         I_OUTPUTPICTURES++;
 306     }
 307
 308     return VLC_SUCCESS;
 309 }
 310
 311 /*****************************************************************************
 312  * End: terminate Sys video thread output method
 313  *****************************************************************************
 314  * Terminate an output method created by OpenVideo
 315  *****************************************************************************/
 316 static void End( vout_thread_t *p_vout )
 317 {
 318     int i_index;
 319
 320     /* Free the output buffers we allocated */
 321     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 322     {
 323         i_index--;
 324         if( p_vout->p_sys->p_overlay == NULL )
 325         {
 326             /* RGB picture */
 327         }
 328         else
 329         {
 330             SDL_UnlockYUVOverlay(
 331                     PP_OUTPUTPICTURE[ i_index ]->p_sys->p_overlay );
 332             SDL_FreeYUVOverlay(
 333                     PP_OUTPUTPICTURE[ i_index ]->p_sys->p_overlay );
 334         }
 335         free( PP_OUTPUTPICTURE[ i_index ]->p_sys );
 336     }
 337 }
 338
 339 /*****************************************************************************
 340  * CloseVideo: destroy Sys video thread output method
 341  *****************************************************************************
 342  * Terminate an output method created by vout_SDLCreate
 343  *****************************************************************************/
 344 static void Close ( vlc_object_t *p_this )
 345 {
 346     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 347
 348     CloseDisplay( p_vout );
 349     SDL_QuitSubSystem( SDL_INIT_VIDEO );
 350
 351     free( p_vout->p_sys );
 352 }
 353
 354 /*****************************************************************************
 355  * Manage: handle Sys events
 356  *****************************************************************************
 357  * This function should be called regularly by video output thread. It returns
 358  * a non null value if an error occurred.
 359  *****************************************************************************/
 360 static int Manage( vout_thread_t *p_vout )
 361 {
 362     SDL_Event event;                                            /* SDL event */
 363     vlc_value_t val;
 364     unsigned int i_width, i_height, i_x, i_y;
 365
 366     /* Process events */
 367     while( SDL_PollEvent( &event ) )
 368     {
 369         switch( event.type )
 370         {
 371         /* Resizing of window */
 372         case SDL_VIDEORESIZE:
 373             p_vout->i_changes |= VOUT_SIZE_CHANGE;
 374             p_vout->i_window_width = p_vout->p_sys->i_width = event.resize.w;
 375             p_vout->i_window_height = p_vout->p_sys->i_height = event.resize.h;
 376             break;
 377
 378         /* Mouse move */
 379         case SDL_MOUSEMOTION:
 380             vout_PlacePicture( p_vout, p_vout->p_sys->i_width,
 381                                p_vout->p_sys->i_height,
 382                                &i_x, &i_y, &i_width, &i_height );
 383
 384             /* Compute the x coordinate and check if the value is
 385                in [0,p_vout->fmt_in.i_visible_width] */
 386             val.i_int = ( event.motion.x - i_x ) *
 387                         p_vout->fmt_in.i_visible_width / i_width +
 388                         p_vout->fmt_in.i_x_offset;
 389
 390             if( (int)(event.motion.x - i_x) < 0 )
 391                 val.i_int = 0;
 392             else if( (unsigned int)val.i_int > p_vout->fmt_in.i_visible_width )
 393                 val.i_int = p_vout->fmt_in.i_visible_width;
 394
 395             var_Set( p_vout, "mouse-x", val );
 396
 397             /* compute the y coordinate and check if the value is
 398                in [0,p_vout->fmt_in.i_visible_height] */
 399             val.i_int = ( event.motion.y - i_y ) *
 400                         p_vout->fmt_in.i_visible_height / i_height +
 401                         p_vout->fmt_in.i_y_offset;
 402
 403             if( (int)(event.motion.y - i_y) < 0 )
 404                 val.i_int = 0;
 405             else if( (unsigned int)val.i_int > p_vout->fmt_in.i_visible_height )
 406                 val.i_int = p_vout->fmt_in.i_visible_height;
 407
 408             var_Set( p_vout, "mouse-y", val );
 409
 410             val.b_bool = true;
 411             var_Set( p_vout, "mouse-moved", val );
 412
 413             if( p_vout->p_sys->b_cursor )
 414             {
 415                 if( p_vout->p_sys->b_cursor_autohidden )
 416                 {
 417                     p_vout->p_sys->b_cursor_autohidden = 0;
 418                     SDL_ShowCursor( 1 );
 419                 }
 420                 else
 421                 {
 422                     p_vout->p_sys->i_lastmoved = mdate();
 423                 }
 424             }
 425             break;
 426
 427         /* Mouse button released */
 428         case SDL_MOUSEBUTTONUP:
 429             switch( event.button.button )
 430             {
 431             case SDL_BUTTON_LEFT:
 432                 var_Get( p_vout, "mouse-button-down", &val );
 433                 val.i_int &= ~1;
 434                 var_Set( p_vout, "mouse-button-down", val );
 435
 436                 val.b_bool = true;
 437                 var_Set( p_vout, "mouse-clicked", val );
 438                 break;
 439
 440             case SDL_BUTTON_MIDDLE:
 441                 {
 442                     playlist_t *p_playlist;
 443
 444                     var_Get( p_vout, "mouse-button-down", &val );
 445                     val.i_int &= ~2;
 446                     var_Set( p_vout, "mouse-button-down", val );
 447
 448                     p_playlist = vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST,
 449                                               FIND_ANYWHERE );
 450                     if( p_playlist != NULL )
 451                     {
 452                         vlc_value_t val;
 453                         var_Get( p_playlist, "intf-show", &val );
 454                         val.b_bool = !val.b_bool;
 455                         var_Set( p_playlist, "intf-show", val );
 456                         vlc_object_release( p_playlist );
 457                     }
 458                 }
 459                 break;
 460
 461             case SDL_BUTTON_RIGHT:
 462                 {
 463                     intf_thread_t *p_intf;
 464                     playlist_t *p_playlist;
 465
 466                     var_Get( p_vout, "mouse-button-down", &val );
 467                     val.i_int &= ~4;
 468                     var_Set( p_vout, "mous-button-down", val );
 469                     p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
 470                                                       FIND_ANYWHERE );
 471                     if( p_intf )
 472                     {
 473                         p_intf->b_menu_change = 1;
 474                         vlc_object_release( p_intf );
 475                     }
 476
 477                     p_playlist = vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST,
 478                                                 FIND_ANYWHERE );
 479
 480                     if( p_playlist != NULL )
 481                     {
 482                         vlc_value_t val;
 483                         val.b_bool = true;
 484                         var_Set( p_playlist, "intf-popupmenu", val );
 485                         vlc_object_release( p_playlist );
 486                     }
 487                 }
 488                 break;
 489             }
 490             break;
 491
 492         /* Mouse button pressed */
 493         case SDL_MOUSEBUTTONDOWN:
 494             switch( event.button.button )
 495             {
 496             case SDL_BUTTON_LEFT:
 497                 var_Get( p_vout, "mouse-button-down", &val );
 498                 val.i_int |= 1;
 499                 var_Set( p_vout, "mouse-button-down", val );
 500
 501                 /* detect double-clicks */
 502                 if( ( mdate() - p_vout->p_sys->i_lastpressed ) < 300000 )
 503                     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 504
 505                 p_vout->p_sys->i_lastpressed = mdate();
 506                 break;
 507
 508             case SDL_BUTTON_MIDDLE:
 509                 var_Get( p_vout, "mouse-button-down", &val );
 510                 val.i_int |= 2;
 511                 var_Set( p_vout, "mouse-button-down", val );
 512                 break;
 513
 514             case SDL_BUTTON_RIGHT:
 515                 var_Get( p_vout, "mouse-button-down", &val );
 516                 val.i_int |= 4;
 517                 var_Set( p_vout, "mouse-button-down", val );
 518                 break;
 519             }
 520             break;
 521
 522         /* Quit event (close the window) */
 523         case SDL_QUIT:
 524             {
 525                 playlist_t *p_playlist = (playlist_t *)vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 526                 if( p_playlist != NULL )
 527                 {
 528                     playlist_Stop( p_playlist );
 529                     vlc_object_release( p_playlist );
 530                 }
 531             }
 532             break;
 533
 534         /* Key pressed */
 535         case SDL_KEYDOWN:
 536             /* convert the key if possible */
 537             val.i_int = ConvertKey( event.key.keysym.sym );
 538
 539             if( !val.i_int )
 540             {
 541                 /* Find the right caracter */
 542                 if( ( event.key.keysym.unicode & 0xff80 ) == 0 )
 543                 {
 544                     val.i_int = event.key.keysym.unicode & 0x7f;
 545                     /* FIXME: find a better solution than this
 546                               hack to find the right caracter */
 547                     if( val.i_int >= 1 && val.i_int <= 26 )
 548                         val.i_int += 96;
 549                     else if( val.i_int >= 65 && val.i_int <= 90 )
 550                         val.i_int += 32;
 551                 }
 552             }
 553
 554             if( val.i_int )
 555             {
 556                 if( ( event.key.keysym.mod & KMOD_SHIFT ) )
 557                 {
 558                     val.i_int |= KEY_MODIFIER_SHIFT;
 559                 }
 560                 if( ( event.key.keysym.mod & KMOD_CTRL ) )
 561                 {
 562                     val.i_int |= KEY_MODIFIER_CTRL;
 563                 }
 564                 if( ( event.key.keysym.mod & KMOD_ALT ) )
 565                 {
 566                     val.i_int |= KEY_MODIFIER_ALT;
 567                 }
 568                 var_Set( p_vout->p_libvlc, "key-pressed", val );
 569             }
 570
 571         default:
 572             break;
 573         }
 574     }
 575
 576     /* Fullscreen change */
 577     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 578     {
 579         vlc_value_t val_fs;
 580
 581         /* Update the object variable and trigger callback */
 582         val_fs.b_bool = !p_vout->b_fullscreen;
 583         p_vout->b_fullscreen = !p_vout->b_fullscreen;
 584         var_Set( p_vout, "fullscreen", val_fs );
 585
 586         /*TODO: add the "always on top" code here !*/
 587
 588         p_vout->p_sys->b_cursor_autohidden = 0;
 589         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 590                         ! p_vout->p_sys->b_cursor_autohidden );
 591
 592         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 593         p_vout->i_changes |= VOUT_SIZE_CHANGE;
 594     }
 595
 596     /* Crop or Aspect Ratio Changes */
 597     if( p_vout->i_changes & VOUT_CROP_CHANGE ||
 598         p_vout->i_changes & VOUT_ASPECT_CHANGE )
 599     {
 600         p_vout->i_changes &= ~VOUT_CROP_CHANGE;
 601         p_vout->i_changes &= ~VOUT_ASPECT_CHANGE;
 602
 603         p_vout->fmt_out.i_x_offset = p_vout->fmt_in.i_x_offset;
 604         p_vout->fmt_out.i_y_offset = p_vout->fmt_in.i_y_offset;
 605         p_vout->fmt_out.i_visible_width = p_vout->fmt_in.i_visible_width;
 606         p_vout->fmt_out.i_visible_height = p_vout->fmt_in.i_visible_height;
 607         p_vout->fmt_out.i_aspect = p_vout->fmt_in.i_aspect;
 608         p_vout->fmt_out.i_sar_num = p_vout->fmt_in.i_sar_num;
 609         p_vout->fmt_out.i_sar_den = p_vout->fmt_in.i_sar_den;
 610         p_vout->output.i_aspect = p_vout->fmt_in.i_aspect;
 611
 612         p_vout->i_changes |= VOUT_SIZE_CHANGE;
 613     }
 614
 615     /* Size change */
 616     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 617     {
 618         msg_Dbg( p_vout, "video display resized (%dx%d)",
 619                  p_vout->p_sys->i_width, p_vout->p_sys->i_height );
 620
 621         CloseDisplay( p_vout );
 622         OpenDisplay( p_vout );
 623
 624         /* We don't need to signal the vout thread about the size change if
 625          * we can handle rescaling ourselves */
 626         if( p_vout->p_sys->p_overlay != NULL )
 627             p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 628     }
 629
 630     /* Pointer change */
 631     if( ! p_vout->p_sys->b_cursor_autohidden &&
 632         ( mdate() - p_vout->p_sys->i_lastmoved >
 633             p_vout->p_sys->i_mouse_hide_timeout ) )
 634     {
 635         /* Hide the mouse automatically */
 636         p_vout->p_sys->b_cursor_autohidden = 1;
 637         SDL_ShowCursor( 0 );
 638     }
 639
 640     return VLC_SUCCESS;
 641 }
 642
 643 /*****************************************************************************
 644  * Key events handling
 645  *****************************************************************************/
 646 static struct
 647 {
 648     SDLKey sdl_key;
 649     int i_vlckey;
 650 } sdlkeys_to_vlckeys[] =
 651 {
 652     { SDLK_F1,  KEY_F1 },
 653     { SDLK_F2,  KEY_F2 },
 654     { SDLK_F3,  KEY_F3 },
 655     { SDLK_F4,  KEY_F4 },
 656     { SDLK_F5,  KEY_F5 },
 657     { SDLK_F6,  KEY_F6 },
 658     { SDLK_F7,  KEY_F7 },
 659     { SDLK_F8,  KEY_F8 },
 660     { SDLK_F9,  KEY_F9 },
 661     { SDLK_F10, KEY_F10 },
 662     { SDLK_F11, KEY_F11 },
 663     { SDLK_F12, KEY_F12 },
 664
 665     { SDLK_RETURN, KEY_ENTER },
 666     { SDLK_KP_ENTER, KEY_ENTER },
 667     { SDLK_SPACE, KEY_SPACE },
 668     { SDLK_ESCAPE, KEY_ESC },
 669
 670     { SDLK_MENU, KEY_MENU },
 671     { SDLK_LEFT, KEY_LEFT },
 672     { SDLK_RIGHT, KEY_RIGHT },
 673     { SDLK_UP, KEY_UP },
 674     { SDLK_DOWN, KEY_DOWN },
 675
 676     { SDLK_HOME, KEY_HOME },
 677     { SDLK_END, KEY_END },
 678     { SDLK_PAGEUP, KEY_PAGEUP },
 679     { SDLK_PAGEDOWN,  KEY_PAGEDOWN },
 680
 681     { SDLK_INSERT, KEY_INSERT },
 682     { SDLK_DELETE, KEY_DELETE },
 683     /*TODO: find a equivalent for SDL
 684     { , KEY_MEDIA_NEXT_TRACK }
 685     { , KEY_MEDIA_PREV_TRACK }
 686     { , KEY_VOLUME_MUTE }
 687     { , KEY_VOLUME_DOWN }
 688     { , KEY_VOLUME_UP }
 689     { , KEY_MEDIA_PLAY_PAUSE }
 690     { , KEY_MEDIA_PLAY_PAUSE }*/
 691
 692     { 0, 0 }
 693 };
 694
 695 static int ConvertKey( SDLKey sdl_key )
 696 {
 697     int i;
 698     for( i=0; sdlkeys_to_vlckeys[i].sdl_key != 0; i++ )
 699     {
 700         if( sdlkeys_to_vlckeys[i].sdl_key == sdl_key )
 701         {
 702             return sdlkeys_to_vlckeys[i].i_vlckey;
 703         }
 704     }
 705     return 0;
 706 }
 707
 708
 709 /*****************************************************************************
 710  * Display: displays previously rendered output
 711  *****************************************************************************
 712  * This function sends the currently rendered image to the display.
 713  *****************************************************************************/
 714 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
 715 {
 716     unsigned int x, y, w, h;
 717     SDL_Rect disp;
 718
 719     vout_PlacePicture( p_vout, p_vout->p_sys->i_width, p_vout->p_sys->i_height,
 720                        &x, &y, &w, &h );
 721     disp.x = x;
 722     disp.y = y;
 723     disp.w = w;
 724     disp.h = h;
 725
 726     if( p_vout->p_sys->p_overlay == NULL )
 727     {
 728         /* RGB picture */
 729         SDL_Flip( p_vout->p_sys->p_display );
 730     }
 731     else
 732     {
 733         /* Overlay picture */
 734         SDL_UnlockYUVOverlay( p_pic->p_sys->p_overlay);
 735         SDL_DisplayYUVOverlay( p_pic->p_sys->p_overlay , &disp );
 736         SDL_LockYUVOverlay( p_pic->p_sys->p_overlay);
 737     }
 738 }
 739
 740 /* following functions are local */
 741
 742 /*****************************************************************************
 743  * OpenDisplay: open and initialize SDL device
 744  *****************************************************************************
 745  * Open and initialize display according to preferences specified in the vout
 746  * thread fields.
 747  *****************************************************************************/
 748 static int OpenDisplay( vout_thread_t *p_vout )
 749 {
 750     uint32_t i_flags;
 751     int i_bpp;
 752
 753     /* SDL fucked up fourcc definitions on bigendian machines */
 754     uint32_t i_sdl_chroma;
 755     char *psz_chroma = NULL;
 756     uint32_t i_chroma = 0;
 757
 758     /* Set main window's size */
 759 #if SDL_VERSION_ATLEAST(1,2,10)
 760     p_vout->p_sys->i_width = p_vout->b_fullscreen ? p_vout->p_sys->i_desktop_width :
 761                                                     p_vout->i_window_width;
 762     p_vout->p_sys->i_height = p_vout->b_fullscreen ? p_vout->p_sys->i_desktop_height :
 763                                                      p_vout->i_window_height;
 764 #else
 765     p_vout->p_sys->i_width = p_vout->b_fullscreen ? p_vout->output.i_width :
 766                                                     p_vout->i_window_width;
 767     p_vout->p_sys->i_height = p_vout->b_fullscreen ? p_vout->output.i_height :
 768                                                      p_vout->i_window_height;
 769 #endif
 770
 771     /* Initialize flags and cursor */
 772     i_flags = SDL_ANYFORMAT | SDL_HWPALETTE | SDL_HWSURFACE | SDL_DOUBLEBUF;
 773     i_flags |= p_vout->b_fullscreen ? SDL_FULLSCREEN : SDL_RESIZABLE;
 774
 775     i_bpp = SDL_VideoModeOK( p_vout->p_sys->i_width, p_vout->p_sys->i_height,
 776                              SDL_DEFAULT_BPP, i_flags );
 777     if( i_bpp == 0 )
 778     {
 779         msg_Err( p_vout, "no video mode available" );
 780         return VLC_EGENERIC;
 781     }
 782
 783     p_vout->p_sys->p_display = SDL_SetVideoMode( p_vout->p_sys->i_width,
 784                                                  p_vout->p_sys->i_height,
 785                                                  i_bpp, i_flags );
 786
 787     if( p_vout->p_sys->p_display == NULL )
 788     {
 789         msg_Err( p_vout, "cannot set video mode" );
 790         return VLC_EGENERIC;
 791     }
 792
 793     SDL_LockSurface( p_vout->p_sys->p_display );
 794
 795     if( ( psz_chroma = config_GetPsz( p_vout, "sdl-chroma" ) ) )
 796     {
 797         if( strlen( psz_chroma ) >= 4 )
 798         {
 799             memcpy(&i_chroma, psz_chroma, 4);
 800             msg_Dbg( p_vout, "Forcing chroma to 0x%.8x (%4.4s)", i_chroma, (char*)&i_chroma );
 801         }
 802         else
 803         {
 804             free( psz_chroma );
 805             psz_chroma = NULL;
 806         }
 807     }
 808
 809     /* Choose the chroma we will try first. */
 810     do
 811     {
 812         if( !psz_chroma ) i_chroma = 0;
 813         switch( i_chroma ? i_chroma : p_vout->render.i_chroma )
 814         {
 815             case VLC_FOURCC('Y','U','Y','2'):
 816             case VLC_FOURCC('Y','U','N','V'):
 817                 p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
 818                 i_sdl_chroma = SDL_YUY2_OVERLAY;
 819                 break;
 820             case VLC_FOURCC('U','Y','V','Y'):
 821             case VLC_FOURCC('U','Y','N','V'):
 822             case VLC_FOURCC('Y','4','2','2'):
 823                 p_vout->output.i_chroma = VLC_FOURCC('U','Y','V','Y');
 824                 i_sdl_chroma = SDL_UYVY_OVERLAY;
 825                 break;
 826             case VLC_FOURCC('Y','V','Y','U'):
 827                 p_vout->output.i_chroma = VLC_FOURCC('Y','V','Y','U');
 828                 i_sdl_chroma = SDL_YVYU_OVERLAY;
 829                 break;
 830             case VLC_FOURCC('Y','V','1','2'):
 831             case VLC_FOURCC('I','4','2','0'):
 832             case VLC_FOURCC('I','Y','U','V'):
 833             default:
 834                 p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
 835                 i_sdl_chroma = SDL_YV12_OVERLAY;
 836                 break;
 837         }
 838         free( psz_chroma ); psz_chroma = NULL;
 839
 840         p_vout->p_sys->p_overlay =
 841             SDL_CreateYUVOverlay( 32, 32, i_sdl_chroma,
 842                                   p_vout->p_sys->p_display );
 843         /* FIXME: if the first overlay we find is software, don't stop,
 844          * because we may find a hardware one later ... */
 845     }
 846     while( i_chroma && !p_vout->p_sys->p_overlay );
 847
 848
 849     /* If this best choice failed, fall back to other chromas */
 850     if( p_vout->p_sys->p_overlay == NULL )
 851     {
 852         p_vout->output.i_chroma = VLC_FOURCC('I','Y','U','V');
 853         p_vout->p_sys->p_overlay =
 854             SDL_CreateYUVOverlay( 32, 32, SDL_IYUV_OVERLAY,
 855                                   p_vout->p_sys->p_display );
 856     }
 857
 858     if( p_vout->p_sys->p_overlay == NULL )
 859     {
 860         p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
 861         p_vout->p_sys->p_overlay =
 862             SDL_CreateYUVOverlay( 32, 32, SDL_YV12_OVERLAY,
 863                                   p_vout->p_sys->p_display );
 864     }
 865
 866     if( p_vout->p_sys->p_overlay == NULL )
 867     {
 868         p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
 869         p_vout->p_sys->p_overlay =
 870             SDL_CreateYUVOverlay( 32, 32, SDL_YUY2_OVERLAY,
 871                                   p_vout->p_sys->p_display );
 872     }
 873
 874     if( p_vout->p_sys->p_overlay == NULL )
 875     {
 876         msg_Warn( p_vout, "no SDL overlay for 0x%.8x (%4.4s)",
 877                   p_vout->render.i_chroma, (char*)&p_vout->render.i_chroma );
 878
 879         switch( p_vout->p_sys->p_display->format->BitsPerPixel )
 880         {
 881             case 8:
 882                 p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
 883                 p_vout->output.pf_setpalette = SetPalette;
 884                 break;
 885             case 15:
 886                 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5');
 887                 break;
 888             case 16:
 889                 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
 890                 break;
 891             case 24:
 892                 p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
 893                 break;
 894             case 32:
 895                 p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
 896                 break;
 897             default:
 898                 msg_Err( p_vout, "unknown screen depth %i",
 899                          p_vout->p_sys->p_display->format->BitsPerPixel );
 900                 SDL_UnlockSurface( p_vout->p_sys->p_display );
 901                 SDL_FreeSurface( p_vout->p_sys->p_display );
 902                 return VLC_EGENERIC;
 903         }
 904
 905         p_vout->output.i_rmask = p_vout->p_sys->p_display->format->Rmask;
 906         p_vout->output.i_gmask = p_vout->p_sys->p_display->format->Gmask;
 907         p_vout->output.i_bmask = p_vout->p_sys->p_display->format->Bmask;
 908
 909         SDL_WM_SetCaption( VOUT_TITLE " (software RGB SDL output)",
 910                            VOUT_TITLE " (software RGB SDL output)" );
 911     }
 912     else
 913     {
 914         if( p_vout->p_sys->p_overlay->hw_overlay )
 915         {
 916             SDL_WM_SetCaption( VOUT_TITLE " (hardware YUV SDL output)",
 917                                VOUT_TITLE " (hardware YUV SDL output)" );
 918         }
 919         else
 920         {
 921             SDL_WM_SetCaption( VOUT_TITLE " (software YUV SDL output)",
 922                                VOUT_TITLE " (software YUV SDL output)" );
 923         }
 924     }
 925
 926     SDL_EventState( SDL_KEYUP, SDL_IGNORE );               /* ignore keys up */
 927
 928     return VLC_SUCCESS;
 929 }
 930
 931 /*****************************************************************************
 932  * CloseDisplay: close and reset SDL device
 933  *****************************************************************************
 934  * This function returns all resources allocated by OpenDisplay and restore
 935  * the original state of the device.
 936  *****************************************************************************/
 937 static void CloseDisplay( vout_thread_t *p_vout )
 938 {
 939     SDL_FreeYUVOverlay( p_vout->p_sys->p_overlay );
 940     SDL_UnlockSurface ( p_vout->p_sys->p_display );
 941     SDL_FreeSurface( p_vout->p_sys->p_display );
 942 }
 943
 944 /*****************************************************************************
 945  * NewPicture: allocate a picture
 946  *****************************************************************************
 947  * Returns 0 on success, -1 otherwise
 948  *****************************************************************************/
 949 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
 950 {
 951     int i_width  = p_vout->output.i_width;
 952     int i_height = p_vout->output.i_height;
 953
 954     if( p_vout->p_sys->p_overlay == NULL )
 955     {
 956         /* RGB picture */
 957         if( p_vout->p_sys->i_surfaces )
 958         {
 959             /* We already allocated this surface, return */
 960             return VLC_EGENERIC;
 961         }
 962
 963         p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
 964
 965         if( p_pic->p_sys == NULL )
 966         {
 967             return VLC_ENOMEM;
 968         }
 969
 970         switch( p_vout->p_sys->p_display->format->BitsPerPixel )
 971         {
 972             case 8:
 973                 p_pic->p->i_pixel_pitch = 1;
 974                 break;
 975             case 15:
 976             case 16:
 977                 p_pic->p->i_pixel_pitch = 2;
 978                 break;
 979             case 24:
 980             case 32:
 981                 p_pic->p->i_pixel_pitch = 4;
 982                 break;
 983             default:
 984                 return VLC_EGENERIC;
 985         }
 986
 987         p_pic->p->p_pixels = p_vout->p_sys->p_display->pixels;
 988         p_pic->p->i_lines = p_vout->p_sys->p_display->h;
 989         p_pic->p->i_visible_lines = p_vout->p_sys->p_display->h;
 990         p_pic->p->i_pitch = p_vout->p_sys->p_display->pitch;
 991         p_pic->p->i_visible_pitch =
 992             p_pic->p->i_pixel_pitch * p_vout->p_sys->p_display->w;
 993
 994         p_vout->p_sys->i_surfaces++;
 995
 996         p_pic->i_planes = 1;
 997     }
 998     else
 999     {
1000         p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
1001
1002         if( p_pic->p_sys == NULL )
1003         {
1004             return VLC_ENOMEM;
1005         }
1006
1007         p_pic->p_sys->p_overlay =
1008             SDL_CreateYUVOverlay( i_width, i_height,
1009                                   p_vout->output.i_chroma,
1010                                   p_vout->p_sys->p_display );
1011
1012         if( p_pic->p_sys->p_overlay == NULL )
1013         {
1014             free( p_pic->p_sys );
1015             return VLC_EGENERIC;
1016         }
1017
1018         SDL_LockYUVOverlay( p_pic->p_sys->p_overlay );
1019
1020         p_pic->Y_PIXELS = p_pic->p_sys->p_overlay->pixels[0];
1021         p_pic->p[Y_PLANE].i_lines = p_pic->p_sys->p_overlay->h;
1022         p_pic->p[Y_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h;
1023         p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[0];
1024
1025         switch( p_vout->output.i_chroma )
1026         {
1027         case SDL_YV12_OVERLAY:
1028             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1029             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w;
1030
1031             p_pic->U_PIXELS = p_pic->p_sys->p_overlay->pixels[2];
1032             p_pic->p[U_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
1033             p_pic->p[U_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h / 2;
1034             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[2];
1035             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1036             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w / 2;
1037
1038             p_pic->V_PIXELS = p_pic->p_sys->p_overlay->pixels[1];
1039             p_pic->p[V_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
1040             p_pic->p[V_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h / 2;
1041             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[1];
1042             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1043             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w / 2;
1044
1045             p_pic->i_planes = 3;
1046             break;
1047
1048         case SDL_IYUV_OVERLAY:
1049             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1050             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w;
1051
1052             p_pic->U_PIXELS = p_pic->p_sys->p_overlay->pixels[1];
1053             p_pic->p[U_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
1054             p_pic->p[U_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h / 2;
1055             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[1];
1056             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1057             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w / 2;
1058
1059             p_pic->V_PIXELS = p_pic->p_sys->p_overlay->pixels[2];
1060             p_pic->p[V_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
1061             p_pic->p[V_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h / 2;
1062             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[2];
1063             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1064             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w / 2;
1065
1066             p_pic->i_planes = 3;
1067             break;
1068
1069         default:
1070             p_pic->p[Y_PLANE].i_pixel_pitch = 2;
1071             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w * 2;
1072
1073             p_pic->i_planes = 1;
1074             break;
1075         }
1076     }
1077
1078     return VLC_SUCCESS;
1079 }
1080
1081 /*****************************************************************************
1082  * SetPalette: sets an 8 bpp palette
1083  *****************************************************************************/
1084 static void SetPalette( vout_thread_t *p_vout,
1085                         uint16_t *red, uint16_t *green, uint16_t *blue )
1086 {
1087     SDL_Color colors[256];
1088     int i;
1089
1090     /* Fill colors with color information */
1091     for( i = 0; i < 256; i++ )
1092     {
1093         colors[ i ].r = red[ i ] >> 8;
1094         colors[ i ].g = green[ i ] >> 8;
1095         colors[ i ].b = blue[ i ] >> 8;
1096     }
1097
1098     /* Set palette */
1099     if( SDL_SetColors( p_vout->p_sys->p_display, colors, 0, 256 ) == 0 )
1100     {
1101         msg_Err( p_vout, "failed to set palette" );
1102     }
1103 }
1104