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_interface.h>
  37 #include <vlc_playlist.h>
  38 #include <vlc_vout.h>
  39 #include <vlc_keys.h>
  40 //#include <vlc_aout.h>
  41
  42 #include <sys/types.h>
  43 #ifndef WIN32
  44 #   include <netinet/in.h>                            /* BSD: struct in_addr */
  45 #endif
  46
  47 #include SDL_INCLUDE_FILE
  48
  49 /* SDL is not able to crop overlays - so use only 1 direct buffer */
  50 #define SDL_MAX_DIRECTBUFFERS 1
  51 #define SDL_DEFAULT_BPP 16
  52
  53 /*****************************************************************************
  54  * vout_sys_t: video output SDL method descriptor
  55  *****************************************************************************
  56  * This structure is part of the video output thread descriptor.
  57  * It describes the SDL specific properties of an output thread.
  58  *****************************************************************************/
  59 struct vout_sys_t
  60 {
  61     SDL_Surface *   p_display;                             /* display device */
  62
  63     int i_width;
  64     int i_height;
  65
  66 #if SDL_VERSION_ATLEAST(1,2,10)
  67     unsigned int i_desktop_width;
  68     unsigned int i_desktop_height;
  69 #endif
  70
  71     /* For YUV output */
  72     SDL_Overlay * p_overlay;   /* An overlay we keep to grab the XVideo port */
  73
  74     /* For RGB output */
  75     int i_surfaces;
  76
  77     vlc_bool_t  b_cursor;
  78     vlc_bool_t  b_cursor_autohidden;
  79     mtime_t     i_lastmoved;
  80     mtime_t     i_lastpressed;                        /* to track dbl-clicks */
  81 };
  82
  83 /*****************************************************************************
  84  * picture_sys_t: direct buffer method descriptor
  85  *****************************************************************************
  86  * This structure is part of the picture descriptor, it describes the
  87  * SDL specific properties of a direct buffer.
  88  *****************************************************************************/
  89 struct picture_sys_t
  90 {
  91     SDL_Overlay *p_overlay;
  92 };
  93
  94 /*****************************************************************************
  95  * Local prototypes
  96  *****************************************************************************/
  97 static int  Open      ( vlc_object_t * );
  98 static void Close     ( vlc_object_t * );
  99 static int  Init      ( vout_thread_t * );
 100 static void End       ( vout_thread_t * );
 101 static int  Manage    ( vout_thread_t * );
 102 static void Display   ( vout_thread_t *, picture_t * );
 103
 104 static int  OpenDisplay     ( vout_thread_t * );
 105 static void CloseDisplay    ( vout_thread_t * );
 106 static int  NewPicture      ( vout_thread_t *, picture_t * );
 107 static void SetPalette      ( vout_thread_t *,
 108                               uint16_t *, uint16_t *, uint16_t * );
 109
 110 static int ConvertKey( SDLKey );
 111
 112
 113 #define CHROMA_TEXT N_("SDL chroma format")
 114 #define CHROMA_LONGTEXT N_( \
 115     "Force the SDL renderer to use a specific chroma format instead of " \
 116     "trying to improve performances by using the most efficient one.")
 117
 118 /*****************************************************************************
 119  * Module descriptor
 120  *****************************************************************************/
 121 vlc_module_begin();
 122     set_shortname( "SDL" );
 123     set_category( CAT_VIDEO );
 124     set_subcategory( SUBCAT_VIDEO_VOUT );
 125     set_description( _("Simple DirectMedia Layer video output") );
 126     set_capability( "video output", 60 );
 127     add_shortcut( "sdl" );
 128     add_string( "sdl-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT, VLC_TRUE );
 129     set_callbacks( Open, Close );
 130 #if defined( __i386__ ) || defined( __x86_64__ )
 131     /* On i386, SDL is linked against svgalib */
 132     linked_with_a_crap_library_which_uses_atexit();
 133 #endif
 134 vlc_module_end();
 135
 136 /*****************************************************************************
 137  * OpenVideo: allocate SDL video thread output method
 138  *****************************************************************************
 139  * This function allocate and initialize a SDL vout method. It uses some of the
 140  * vout properties to choose the correct mode, and change them according to the
 141  * mode actually used.
 142  *****************************************************************************/
 143 static int Open ( vlc_object_t *p_this )
 144 {
 145     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 146     /* XXX: check for conflicts with the SDL audio output */
 147     vlc_mutex_t *lock = var_AcquireMutex( "sdl" );
 148
 149 #ifdef HAVE_SETENV
 150     char *psz_method;
 151 #endif
 152
 153     if( lock == NULL )
 154         return VLC_ENOMEM;
 155
 156     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 157     if( p_vout->p_sys == NULL )
 158     {
 159         vlc_mutex_unlock( lock );
 160         return VLC_ENOMEM;
 161     }
 162
 163     /* Check if SDL video module has been initialized */
 164     if( SDL_WasInit( SDL_INIT_VIDEO ) != 0 )
 165     {
 166         vlc_mutex_unlock( lock );
 167         free( p_vout->p_sys );
 168         return VLC_EGENERIC;
 169     }
 170
 171     /* Allocate structure */
 172     p_vout->pf_init = Init;
 173     p_vout->pf_end = End;
 174     p_vout->pf_manage = Manage;
 175     p_vout->pf_render = NULL;
 176     p_vout->pf_display = Display;
 177     p_vout->pf_control = NULL;
 178
 179 #ifdef HAVE_SETENV
 180     psz_method = config_GetPsz( p_vout, "vout" );
 181     if( psz_method )
 182     {
 183         while( *psz_method && *psz_method != ':' )
 184         {
 185             psz_method++;
 186         }
 187
 188         if( *psz_method )
 189         {
 190             setenv( "SDL_VIDEODRIVER", psz_method + 1, 1 );
 191         }
 192     }
 193 #endif
 194
 195     /* Initialize library */
 196     if( SDL_Init( SDL_INIT_VIDEO
 197 #ifndef WIN32
 198     /* Win32 SDL implementation doesn't support SDL_INIT_EVENTTHREAD yet*/
 199                 | SDL_INIT_EVENTTHREAD
 200 #endif
 201 #ifndef NDEBUG
 202     /* In debug mode you may want vlc to dump a core instead of staying
 203      * stuck */
 204                 | SDL_INIT_NOPARACHUTE
 205 #endif
 206                 ) < 0 )
 207     {
 208         msg_Err( p_vout, "cannot initialize SDL (%s)", SDL_GetError() );
 209         free( p_vout->p_sys );
 210         vlc_mutex_unlock( lock );
 211         return VLC_EGENERIC;
 212     }
 213
 214     vlc_mutex_unlock( lock );
 215
 216     /* Translate keys into unicode */
 217     SDL_EnableUNICODE(1);
 218
 219     /* Get the desktop resolution */
 220 #if SDL_VERSION_ATLEAST(1,2,10)
 221     /* FIXME: SDL has a problem with virtual desktop */
 222     p_vout->p_sys->i_desktop_width = SDL_GetVideoInfo()->current_w;
 223     p_vout->p_sys->i_desktop_height = SDL_GetVideoInfo()->current_h;
 224 #endif
 225
 226     /* Create the cursor */
 227     p_vout->p_sys->b_cursor = 1;
 228     p_vout->p_sys->b_cursor_autohidden = 0;
 229     p_vout->p_sys->i_lastmoved = p_vout->p_sys->i_lastpressed = mdate();
 230
 231     if( OpenDisplay( p_vout ) )
 232     {
 233         msg_Err( p_vout, "cannot set up SDL (%s)", SDL_GetError() );
 234         SDL_QuitSubSystem( SDL_INIT_VIDEO );
 235         free( p_vout->p_sys );
 236         return VLC_EGENERIC;
 237     }
 238
 239     return VLC_SUCCESS;
 240 }
 241
 242 /*****************************************************************************
 243  * Init: initialize SDL video thread output method
 244  *****************************************************************************
 245  * This function initialize the SDL display device.
 246  *****************************************************************************/
 247 static int Init( vout_thread_t *p_vout )
 248 {
 249     int i_index;
 250     picture_t *p_pic;
 251
 252     p_vout->p_sys->i_surfaces = 0;
 253
 254     I_OUTPUTPICTURES = 0;
 255
 256     /* Initialize the output structure */
 257     if( p_vout->p_sys->p_overlay == NULL )
 258     {
 259         /* All we have is an RGB image with square pixels */
 260         p_vout->output.i_width  = p_vout->p_sys->i_width;
 261         p_vout->output.i_height = p_vout->p_sys->i_height;
 262         p_vout->output.i_aspect = p_vout->output.i_width
 263                                    * VOUT_ASPECT_FACTOR
 264                                    / p_vout->output.i_height;
 265     }
 266     else
 267     {
 268         /* We may need to convert the chroma, but at least we keep the
 269          * aspect ratio */
 270         p_vout->output.i_width  = p_vout->render.i_width;
 271         p_vout->output.i_height = p_vout->render.i_height;
 272         p_vout->output.i_aspect = p_vout->render.i_aspect;
 273     }
 274
 275     /* Try to initialize SDL_MAX_DIRECTBUFFERS direct buffers */
 276     while( I_OUTPUTPICTURES < SDL_MAX_DIRECTBUFFERS )
 277     {
 278         p_pic = NULL;
 279
 280         /* Find an empty picture slot */
 281         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 282         {
 283             if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 284             {
 285                 p_pic = p_vout->p_picture + i_index;
 286                 break;
 287             }
 288         }
 289
 290         /* Allocate the picture if we found one */
 291         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
 292         {
 293             break;
 294         }
 295
 296         p_pic->i_status = DESTROYED_PICTURE;
 297         p_pic->i_type   = DIRECT_PICTURE;
 298
 299         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 300
 301         I_OUTPUTPICTURES++;
 302     }
 303
 304     return VLC_SUCCESS;
 305 }
 306
 307 /*****************************************************************************
 308  * End: terminate Sys video thread output method
 309  *****************************************************************************
 310  * Terminate an output method created by OpenVideo
 311  *****************************************************************************/
 312 static void End( vout_thread_t *p_vout )
 313 {
 314     int i_index;
 315
 316     /* Free the output buffers we allocated */
 317     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 318     {
 319         i_index--;
 320         if( p_vout->p_sys->p_overlay == NULL )
 321         {
 322             /* RGB picture */
 323         }
 324         else
 325         {
 326             SDL_UnlockYUVOverlay(
 327                     PP_OUTPUTPICTURE[ i_index ]->p_sys->p_overlay );
 328             SDL_FreeYUVOverlay(
 329                     PP_OUTPUTPICTURE[ i_index ]->p_sys->p_overlay );
 330         }
 331         free( PP_OUTPUTPICTURE[ i_index ]->p_sys );
 332     }
 333 }
 334
 335 /*****************************************************************************
 336  * CloseVideo: destroy Sys video thread output method
 337  *****************************************************************************
 338  * Terminate an output method created by vout_SDLCreate
 339  *****************************************************************************/
 340 static void Close ( vlc_object_t *p_this )
 341 {
 342     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 343
 344     CloseDisplay( p_vout );
 345     SDL_QuitSubSystem( SDL_INIT_VIDEO );
 346
 347     free( p_vout->p_sys );
 348 }
 349
 350 /*****************************************************************************
 351  * Manage: handle Sys events
 352  *****************************************************************************
 353  * This function should be called regularly by video output thread. It returns
 354  * a non null value if an error occurred.
 355  *****************************************************************************/
 356 static int Manage( vout_thread_t *p_vout )
 357 {
 358     SDL_Event event;                                            /* SDL event */
 359     vlc_value_t val;
 360     unsigned int i_width, i_height, i_x, i_y;
 361
 362     /* Process events */
 363     while( SDL_PollEvent( &event ) )
 364     {
 365         switch( event.type )
 366         {
 367         /* Resizing of window */
 368         case SDL_VIDEORESIZE:
 369             p_vout->i_changes |= VOUT_SIZE_CHANGE;
 370             p_vout->i_window_width = p_vout->p_sys->i_width = event.resize.w;
 371             p_vout->i_window_height = p_vout->p_sys->i_height = event.resize.h;
 372             break;
 373
 374         /* Mouse move */
 375         case SDL_MOUSEMOTION:
 376             vout_PlacePicture( p_vout, p_vout->p_sys->i_width,
 377                                p_vout->p_sys->i_height,
 378                                &i_x, &i_y, &i_width, &i_height );
 379
 380             /* Compute the x coordinate and check if the value is
 381                in [0,p_vout->fmt_in.i_visible_width] */
 382             val.i_int = ( event.motion.x - i_x ) *
 383                         p_vout->fmt_in.i_visible_width / i_width +
 384                         p_vout->fmt_in.i_x_offset;
 385
 386             if( (int)(event.motion.x - i_x) < 0 )
 387                 val.i_int = 0;
 388             else if( (unsigned int)val.i_int > p_vout->fmt_in.i_visible_width )
 389                 val.i_int = p_vout->fmt_in.i_visible_width;
 390
 391             var_Set( p_vout, "mouse-x", val );
 392
 393             /* compute the y coordinate and check if the value is
 394                in [0,p_vout->fmt_in.i_visible_height] */
 395             val.i_int = ( event.motion.y - i_y ) *
 396                         p_vout->fmt_in.i_visible_height / i_height +
 397                         p_vout->fmt_in.i_y_offset;
 398
 399             if( (int)(event.motion.y - i_y) < 0 )
 400                 val.i_int = 0;
 401             else if( (unsigned int)val.i_int > p_vout->fmt_in.i_visible_height )
 402                 val.i_int = p_vout->fmt_in.i_visible_height;
 403
 404             var_Set( p_vout, "mouse-y", val );
 405
 406             val.b_bool = VLC_TRUE;
 407             var_Set( p_vout, "mouse-moved", val );
 408
 409             if( p_vout->p_sys->b_cursor )
 410             {
 411                 if( p_vout->p_sys->b_cursor_autohidden )
 412                 {
 413                     p_vout->p_sys->b_cursor_autohidden = 0;
 414                     SDL_ShowCursor( 1 );
 415                 }
 416                 else
 417                 {
 418                     p_vout->p_sys->i_lastmoved = mdate();
 419                 }
 420             }
 421             break;
 422
 423         /* Mouse button released */
 424         case SDL_MOUSEBUTTONUP:
 425             switch( event.button.button )
 426             {
 427             case SDL_BUTTON_LEFT:
 428                 var_Get( p_vout, "mouse-button-down", &val );
 429                 val.i_int &= ~1;
 430                 var_Set( p_vout, "mouse-button-down", val );
 431
 432                 val.b_bool = VLC_TRUE;
 433                 var_Set( p_vout, "mouse-clicked", val );
 434                 break;
 435
 436             case SDL_BUTTON_MIDDLE:
 437                 {
 438                     playlist_t *p_playlist;
 439
 440                     var_Get( p_vout, "mouse-button-down", &val );
 441                     val.i_int &= ~2;
 442                     var_Set( p_vout, "mouse-button-down", val );
 443
 444                     p_playlist = vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST,
 445                                               FIND_ANYWHERE );
 446                     if( p_playlist != NULL )
 447                     {
 448                         vlc_value_t val;
 449                         var_Get( p_playlist, "intf-show", &val );
 450                         val.b_bool = !val.b_bool;
 451                         var_Set( p_playlist, "intf-show", val );
 452                         vlc_object_release( p_playlist );
 453                     }
 454                 }
 455                 break;
 456
 457             case SDL_BUTTON_RIGHT:
 458                 {
 459                     intf_thread_t *p_intf;
 460                     playlist_t *p_playlist;
 461
 462                     var_Get( p_vout, "mouse-button-down", &val );
 463                     val.i_int &= ~4;
 464                     var_Set( p_vout, "mous-button-down", val );
 465                     p_intf = vlc_object_find( p_vout, VLC_OBJECT_INTF,
 466                                                       FIND_ANYWHERE );
 467                     if( p_intf )
 468                     {
 469                         p_intf->b_menu_change = 1;
 470                         vlc_object_release( p_intf );
 471                     }
 472
 473                     p_playlist = vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST,
 474                                                 FIND_ANYWHERE );
 475
 476                     if( p_playlist != NULL )
 477                     {
 478                         vlc_value_t val;
 479                         val.b_bool = VLC_TRUE;
 480                         var_Set( p_playlist, "intf-popupmenu", val );
 481                         vlc_object_release( p_playlist );
 482                     }
 483                 }
 484                 break;
 485             }
 486             break;
 487
 488         /* Mouse button pressed */
 489         case SDL_MOUSEBUTTONDOWN:
 490             switch( event.button.button )
 491             {
 492             case SDL_BUTTON_LEFT:
 493                 var_Get( p_vout, "mouse-button-down", &val );
 494                 val.i_int |= 1;
 495                 var_Set( p_vout, "mouse-button-down", val );
 496
 497                 /* detect double-clicks */
 498                 if( ( mdate() - p_vout->p_sys->i_lastpressed ) < 300000 )
 499                     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 500
 501                 p_vout->p_sys->i_lastpressed = mdate();
 502                 break;
 503
 504             case SDL_BUTTON_MIDDLE:
 505                 var_Get( p_vout, "mouse-button-down", &val );
 506                 val.i_int |= 2;
 507                 var_Set( p_vout, "mouse-button-down", val );
 508                 break;
 509
 510             case SDL_BUTTON_RIGHT:
 511                 var_Get( p_vout, "mouse-button-down", &val );
 512                 val.i_int |= 4;
 513                 var_Set( p_vout, "mouse-button-down", val );
 514                 break;
 515             }
 516             break;
 517
 518         /* Quit event (close the window) */
 519         case SDL_QUIT:
 520             {
 521                 playlist_t *p_playlist = (playlist_t *)vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 522                 if( p_playlist != NULL )
 523                 {
 524                     playlist_Stop( p_playlist );
 525                     vlc_object_release( p_playlist );
 526                 }
 527             }
 528             break;
 529
 530         /* Key pressed */
 531         case SDL_KEYDOWN:
 532             /* convert the key if possible */
 533             val.i_int = ConvertKey( event.key.keysym.sym );
 534
 535             if( !val.i_int )
 536             {
 537                 /* Find the right caracter */
 538                 if( ( event.key.keysym.unicode & 0xff80 ) == 0 )
 539                 {
 540                     val.i_int = event.key.keysym.unicode & 0x7f;
 541                     /* FIXME: find a better solution than this
 542                               hack to find the right caracter */
 543                     if( val.i_int >= 1 && val.i_int <= 26 )
 544                         val.i_int += 96;
 545                     else if( val.i_int >= 65 && val.i_int <= 90 )
 546                         val.i_int += 32;
 547                 }
 548             }
 549
 550             if( val.i_int )
 551             {
 552                 if( ( event.key.keysym.mod & KMOD_SHIFT ) )
 553                 {
 554                     val.i_int |= KEY_MODIFIER_SHIFT;
 555                 }
 556                 if( ( event.key.keysym.mod & KMOD_CTRL ) )
 557                 {
 558                     val.i_int |= KEY_MODIFIER_CTRL;
 559                 }
 560                 if( ( event.key.keysym.mod & KMOD_ALT ) )
 561                 {
 562                     val.i_int |= KEY_MODIFIER_ALT;
 563                 }
 564                 var_Set( p_vout->p_libvlc, "key-pressed", val );
 565             }
 566
 567         default:
 568             break;
 569         }
 570     }
 571
 572     /* Fullscreen change */
 573     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 574     {
 575         vlc_value_t val_fs;
 576
 577         /* Update the object variable and trigger callback */
 578         val_fs.b_bool = !p_vout->b_fullscreen;
 579         p_vout->b_fullscreen = !p_vout->b_fullscreen;
 580         var_Set( p_vout, "fullscreen", val_fs );
 581
 582         /*TODO: add the "always on top" code here !*/
 583
 584         p_vout->p_sys->b_cursor_autohidden = 0;
 585         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 586                         ! p_vout->p_sys->b_cursor_autohidden );
 587
 588         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 589         p_vout->i_changes |= VOUT_SIZE_CHANGE;
 590     }
 591
 592     /* Crop or Aspect Ratio Changes */
 593     if( p_vout->i_changes & VOUT_CROP_CHANGE ||
 594         p_vout->i_changes & VOUT_ASPECT_CHANGE )
 595     {
 596         p_vout->i_changes &= ~VOUT_CROP_CHANGE;
 597         p_vout->i_changes &= ~VOUT_ASPECT_CHANGE;
 598
 599         p_vout->fmt_out.i_x_offset = p_vout->fmt_in.i_x_offset;
 600         p_vout->fmt_out.i_y_offset = p_vout->fmt_in.i_y_offset;
 601         p_vout->fmt_out.i_visible_width = p_vout->fmt_in.i_visible_width;
 602         p_vout->fmt_out.i_visible_height = p_vout->fmt_in.i_visible_height;
 603         p_vout->fmt_out.i_aspect = p_vout->fmt_in.i_aspect;
 604         p_vout->fmt_out.i_sar_num = p_vout->fmt_in.i_sar_num;
 605         p_vout->fmt_out.i_sar_den = p_vout->fmt_in.i_sar_den;
 606         p_vout->output.i_aspect = p_vout->fmt_in.i_aspect;
 607
 608         p_vout->i_changes |= VOUT_SIZE_CHANGE;
 609     }
 610
 611     /* Size change */
 612     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 613     {
 614         msg_Dbg( p_vout, "video display resized (%dx%d)",
 615                  p_vout->p_sys->i_width, p_vout->p_sys->i_height );
 616
 617         CloseDisplay( p_vout );
 618         OpenDisplay( p_vout );
 619
 620         /* We don't need to signal the vout thread about the size change if
 621          * we can handle rescaling ourselves */
 622         if( p_vout->p_sys->p_overlay != NULL )
 623             p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 624     }
 625
 626     /* Pointer change */
 627     if( ! p_vout->p_sys->b_cursor_autohidden &&
 628         ( mdate() - p_vout->p_sys->i_lastmoved > 2000000 ) )
 629     {
 630         /* Hide the mouse automatically */
 631         p_vout->p_sys->b_cursor_autohidden = 1;
 632         SDL_ShowCursor( 0 );
 633     }
 634
 635     return VLC_SUCCESS;
 636 }
 637
 638 /*****************************************************************************
 639  * Key events handling
 640  *****************************************************************************/
 641 static struct
 642 {
 643     SDLKey sdl_key;
 644     int i_vlckey;
 645 } sdlkeys_to_vlckeys[] =
 646 {
 647     { SDLK_F1,  KEY_F1 },
 648     { SDLK_F2,  KEY_F2 },
 649     { SDLK_F3,  KEY_F3 },
 650     { SDLK_F4,  KEY_F4 },
 651     { SDLK_F5,  KEY_F5 },
 652     { SDLK_F6,  KEY_F6 },
 653     { SDLK_F7,  KEY_F7 },
 654     { SDLK_F8,  KEY_F8 },
 655     { SDLK_F9,  KEY_F9 },
 656     { SDLK_F10, KEY_F10 },
 657     { SDLK_F11, KEY_F11 },
 658     { SDLK_F12, KEY_F12 },
 659
 660     { SDLK_RETURN, KEY_ENTER },
 661     { SDLK_KP_ENTER, KEY_ENTER },
 662     { SDLK_SPACE, KEY_SPACE },
 663     { SDLK_ESCAPE, KEY_ESC },
 664
 665     { SDLK_MENU, KEY_MENU },
 666     { SDLK_LEFT, KEY_LEFT },
 667     { SDLK_RIGHT, KEY_RIGHT },
 668     { SDLK_UP, KEY_UP },
 669     { SDLK_DOWN, KEY_DOWN },
 670
 671     { SDLK_HOME, KEY_HOME },
 672     { SDLK_END, KEY_END },
 673     { SDLK_PAGEUP, KEY_PAGEUP },
 674     { SDLK_PAGEDOWN,  KEY_PAGEDOWN },
 675
 676     { SDLK_INSERT, KEY_INSERT },
 677     { SDLK_DELETE, KEY_DELETE },
 678     /*TODO: find a equivalent for SDL
 679     { , KEY_MEDIA_NEXT_TRACK }
 680     { , KEY_MEDIA_PREV_TRACK }
 681     { , KEY_VOLUME_MUTE }
 682     { , KEY_VOLUME_DOWN }
 683     { , KEY_VOLUME_UP }
 684     { , KEY_MEDIA_PLAY_PAUSE }
 685     { , KEY_MEDIA_PLAY_PAUSE }*/
 686
 687     { 0, 0 }
 688 };
 689
 690 static int ConvertKey( SDLKey sdl_key )
 691 {
 692     int i;
 693     for( i=0; sdlkeys_to_vlckeys[i].sdl_key != 0; i++ )
 694     {
 695         if( sdlkeys_to_vlckeys[i].sdl_key == sdl_key )
 696         {
 697             return sdlkeys_to_vlckeys[i].i_vlckey;
 698         }
 699     }
 700     return 0;
 701 }
 702
 703
 704 /*****************************************************************************
 705  * Display: displays previously rendered output
 706  *****************************************************************************
 707  * This function sends the currently rendered image to the display.
 708  *****************************************************************************/
 709 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
 710 {
 711     unsigned int x, y, w, h;
 712     SDL_Rect disp;
 713
 714     vout_PlacePicture( p_vout, p_vout->p_sys->i_width, p_vout->p_sys->i_height,
 715                        &x, &y, &w, &h );
 716     disp.x = x;
 717     disp.y = y;
 718     disp.w = w;
 719     disp.h = h;
 720
 721     if( p_vout->p_sys->p_overlay == NULL )
 722     {
 723         /* RGB picture */
 724         SDL_Flip( p_vout->p_sys->p_display );
 725     }
 726     else
 727     {
 728         /* Overlay picture */
 729         SDL_UnlockYUVOverlay( p_pic->p_sys->p_overlay);
 730         SDL_DisplayYUVOverlay( p_pic->p_sys->p_overlay , &disp );
 731         SDL_LockYUVOverlay( p_pic->p_sys->p_overlay);
 732     }
 733 }
 734
 735 /* following functions are local */
 736
 737 /*****************************************************************************
 738  * OpenDisplay: open and initialize SDL device
 739  *****************************************************************************
 740  * Open and initialize display according to preferences specified in the vout
 741  * thread fields.
 742  *****************************************************************************/
 743 static int OpenDisplay( vout_thread_t *p_vout )
 744 {
 745     uint32_t i_flags;
 746     int i_bpp;
 747
 748     /* SDL fucked up fourcc definitions on bigendian machines */
 749     uint32_t i_sdl_chroma;
 750     char *psz_chroma = NULL;
 751     uint32_t i_chroma = 0;
 752
 753     /* Set main window's size */
 754 #if SDL_VERSION_ATLEAST(1,2,10)
 755     p_vout->p_sys->i_width = p_vout->b_fullscreen ? p_vout->p_sys->i_desktop_width :
 756                                                     p_vout->i_window_width;
 757     p_vout->p_sys->i_height = p_vout->b_fullscreen ? p_vout->p_sys->i_desktop_height :
 758                                                      p_vout->i_window_height;
 759 #else
 760     p_vout->p_sys->i_width = p_vout->b_fullscreen ? p_vout->output.i_width :
 761                                                     p_vout->i_window_width;
 762     p_vout->p_sys->i_height = p_vout->b_fullscreen ? p_vout->output.i_height :
 763                                                      p_vout->i_window_height;
 764 #endif
 765
 766     /* Initialize flags and cursor */
 767     i_flags = SDL_ANYFORMAT | SDL_HWPALETTE | SDL_HWSURFACE | SDL_DOUBLEBUF;
 768     i_flags |= p_vout->b_fullscreen ? SDL_FULLSCREEN : SDL_RESIZABLE;
 769
 770     i_bpp = SDL_VideoModeOK( p_vout->p_sys->i_width, p_vout->p_sys->i_height,
 771                              SDL_DEFAULT_BPP, i_flags );
 772     if( i_bpp == 0 )
 773     {
 774         msg_Err( p_vout, "no video mode available" );
 775         return VLC_EGENERIC;
 776     }
 777
 778     p_vout->p_sys->p_display = SDL_SetVideoMode( p_vout->p_sys->i_width,
 779                                                  p_vout->p_sys->i_height,
 780                                                  i_bpp, i_flags );
 781
 782     if( p_vout->p_sys->p_display == NULL )
 783     {
 784         msg_Err( p_vout, "cannot set video mode" );
 785         return VLC_EGENERIC;
 786     }
 787
 788     SDL_LockSurface( p_vout->p_sys->p_display );
 789
 790     if( ( psz_chroma = config_GetPsz( p_vout, "sdl-chroma" ) ) )
 791     {
 792         if( strlen( psz_chroma ) >= 4 )
 793         {
 794             memcpy(&i_chroma, psz_chroma, 4);
 795             msg_Dbg( p_vout, "Forcing chroma to 0x%.8x (%4.4s)", i_chroma, (char*)&i_chroma );
 796         }
 797         else
 798         {
 799             free( psz_chroma );
 800             psz_chroma = NULL;
 801         }
 802     }
 803
 804     /* Choose the chroma we will try first. */
 805     do
 806     {
 807         if( !psz_chroma ) i_chroma = 0;
 808         switch( i_chroma ? i_chroma : p_vout->render.i_chroma )
 809         {
 810             case VLC_FOURCC('Y','U','Y','2'):
 811             case VLC_FOURCC('Y','U','N','V'):
 812                 p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
 813                 i_sdl_chroma = SDL_YUY2_OVERLAY;
 814                 break;
 815             case VLC_FOURCC('U','Y','V','Y'):
 816             case VLC_FOURCC('U','Y','N','V'):
 817             case VLC_FOURCC('Y','4','2','2'):
 818                 p_vout->output.i_chroma = VLC_FOURCC('U','Y','V','Y');
 819                 i_sdl_chroma = SDL_UYVY_OVERLAY;
 820                 break;
 821             case VLC_FOURCC('Y','V','Y','U'):
 822                 p_vout->output.i_chroma = VLC_FOURCC('Y','V','Y','U');
 823                 i_sdl_chroma = SDL_YVYU_OVERLAY;
 824                 break;
 825             case VLC_FOURCC('Y','V','1','2'):
 826             case VLC_FOURCC('I','4','2','0'):
 827             case VLC_FOURCC('I','Y','U','V'):
 828             default:
 829                 p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
 830                 i_sdl_chroma = SDL_YV12_OVERLAY;
 831                 break;
 832         }
 833         free( psz_chroma ); psz_chroma = NULL;
 834
 835         p_vout->p_sys->p_overlay =
 836             SDL_CreateYUVOverlay( 32, 32, i_sdl_chroma,
 837                                   p_vout->p_sys->p_display );
 838         /* FIXME: if the first overlay we find is software, don't stop,
 839          * because we may find a hardware one later ... */
 840     }
 841     while( i_chroma && !p_vout->p_sys->p_overlay );
 842
 843
 844     /* If this best choice failed, fall back to other chromas */
 845     if( p_vout->p_sys->p_overlay == NULL )
 846     {
 847         p_vout->output.i_chroma = VLC_FOURCC('I','Y','U','V');
 848         p_vout->p_sys->p_overlay =
 849             SDL_CreateYUVOverlay( 32, 32, SDL_IYUV_OVERLAY,
 850                                   p_vout->p_sys->p_display );
 851     }
 852
 853     if( p_vout->p_sys->p_overlay == NULL )
 854     {
 855         p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
 856         p_vout->p_sys->p_overlay =
 857             SDL_CreateYUVOverlay( 32, 32, SDL_YV12_OVERLAY,
 858                                   p_vout->p_sys->p_display );
 859     }
 860
 861     if( p_vout->p_sys->p_overlay == NULL )
 862     {
 863         p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
 864         p_vout->p_sys->p_overlay =
 865             SDL_CreateYUVOverlay( 32, 32, SDL_YUY2_OVERLAY,
 866                                   p_vout->p_sys->p_display );
 867     }
 868
 869     if( p_vout->p_sys->p_overlay == NULL )
 870     {
 871         msg_Warn( p_vout, "no SDL overlay for 0x%.8x (%4.4s)",
 872                   p_vout->render.i_chroma, (char*)&p_vout->render.i_chroma );
 873
 874         switch( p_vout->p_sys->p_display->format->BitsPerPixel )
 875         {
 876             case 8:
 877                 p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
 878                 p_vout->output.pf_setpalette = SetPalette;
 879                 break;
 880             case 15:
 881                 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5');
 882                 break;
 883             case 16:
 884                 p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
 885                 break;
 886             case 24:
 887                 p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
 888                 break;
 889             case 32:
 890                 p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
 891                 break;
 892             default:
 893                 msg_Err( p_vout, "unknown screen depth %i",
 894                          p_vout->p_sys->p_display->format->BitsPerPixel );
 895                 SDL_UnlockSurface( p_vout->p_sys->p_display );
 896                 SDL_FreeSurface( p_vout->p_sys->p_display );
 897                 return VLC_EGENERIC;
 898         }
 899
 900         p_vout->output.i_rmask = p_vout->p_sys->p_display->format->Rmask;
 901         p_vout->output.i_gmask = p_vout->p_sys->p_display->format->Gmask;
 902         p_vout->output.i_bmask = p_vout->p_sys->p_display->format->Bmask;
 903
 904         SDL_WM_SetCaption( VOUT_TITLE " (software RGB SDL output)",
 905                            VOUT_TITLE " (software RGB SDL output)" );
 906     }
 907     else
 908     {
 909         if( p_vout->p_sys->p_overlay->hw_overlay )
 910         {
 911             SDL_WM_SetCaption( VOUT_TITLE " (hardware YUV SDL output)",
 912                                VOUT_TITLE " (hardware YUV SDL output)" );
 913         }
 914         else
 915         {
 916             SDL_WM_SetCaption( VOUT_TITLE " (software YUV SDL output)",
 917                                VOUT_TITLE " (software YUV SDL output)" );
 918         }
 919     }
 920
 921     SDL_EventState( SDL_KEYUP, SDL_IGNORE );               /* ignore keys up */
 922
 923     return VLC_SUCCESS;
 924 }
 925
 926 /*****************************************************************************
 927  * CloseDisplay: close and reset SDL device
 928  *****************************************************************************
 929  * This function returns all resources allocated by OpenDisplay and restore
 930  * the original state of the device.
 931  *****************************************************************************/
 932 static void CloseDisplay( vout_thread_t *p_vout )
 933 {
 934     SDL_FreeYUVOverlay( p_vout->p_sys->p_overlay );
 935     SDL_UnlockSurface ( p_vout->p_sys->p_display );
 936     SDL_FreeSurface( p_vout->p_sys->p_display );
 937 }
 938
 939 /*****************************************************************************
 940  * NewPicture: allocate a picture
 941  *****************************************************************************
 942  * Returns 0 on success, -1 otherwise
 943  *****************************************************************************/
 944 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
 945 {
 946     int i_width  = p_vout->output.i_width;
 947     int i_height = p_vout->output.i_height;
 948
 949     if( p_vout->p_sys->p_overlay == NULL )
 950     {
 951         /* RGB picture */
 952         if( p_vout->p_sys->i_surfaces )
 953         {
 954             /* We already allocated this surface, return */
 955             return VLC_EGENERIC;
 956         }
 957
 958         p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
 959
 960         if( p_pic->p_sys == NULL )
 961         {
 962             return VLC_ENOMEM;
 963         }
 964
 965         switch( p_vout->p_sys->p_display->format->BitsPerPixel )
 966         {
 967             case 8:
 968                 p_pic->p->i_pixel_pitch = 1;
 969                 break;
 970             case 15:
 971             case 16:
 972                 p_pic->p->i_pixel_pitch = 2;
 973                 break;
 974             case 24:
 975             case 32:
 976                 p_pic->p->i_pixel_pitch = 4;
 977                 break;
 978             default:
 979                 return VLC_EGENERIC;
 980         }
 981
 982         p_pic->p->p_pixels = p_vout->p_sys->p_display->pixels;
 983         p_pic->p->i_lines = p_vout->p_sys->p_display->h;
 984         p_pic->p->i_visible_lines = p_vout->p_sys->p_display->h;
 985         p_pic->p->i_pitch = p_vout->p_sys->p_display->pitch;
 986         p_pic->p->i_visible_pitch =
 987             p_pic->p->i_pixel_pitch * p_vout->p_sys->p_display->w;
 988
 989         p_vout->p_sys->i_surfaces++;
 990
 991         p_pic->i_planes = 1;
 992     }
 993     else
 994     {
 995         p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
 996
 997         if( p_pic->p_sys == NULL )
 998         {
 999             return VLC_ENOMEM;
1000         }
1001
1002         p_pic->p_sys->p_overlay =
1003             SDL_CreateYUVOverlay( i_width, i_height,
1004                                   p_vout->output.i_chroma,
1005                                   p_vout->p_sys->p_display );
1006
1007         if( p_pic->p_sys->p_overlay == NULL )
1008         {
1009             free( p_pic->p_sys );
1010             return VLC_EGENERIC;
1011         }
1012
1013         SDL_LockYUVOverlay( p_pic->p_sys->p_overlay );
1014
1015         p_pic->Y_PIXELS = p_pic->p_sys->p_overlay->pixels[0];
1016         p_pic->p[Y_PLANE].i_lines = p_pic->p_sys->p_overlay->h;
1017         p_pic->p[Y_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h;
1018         p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[0];
1019
1020         switch( p_vout->output.i_chroma )
1021         {
1022         case SDL_YV12_OVERLAY:
1023             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1024             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w;
1025
1026             p_pic->U_PIXELS = p_pic->p_sys->p_overlay->pixels[2];
1027             p_pic->p[U_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
1028             p_pic->p[U_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h / 2;
1029             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[2];
1030             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1031             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w / 2;
1032
1033             p_pic->V_PIXELS = p_pic->p_sys->p_overlay->pixels[1];
1034             p_pic->p[V_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
1035             p_pic->p[V_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h / 2;
1036             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[1];
1037             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1038             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w / 2;
1039
1040             p_pic->i_planes = 3;
1041             break;
1042
1043         case SDL_IYUV_OVERLAY:
1044             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1045             p_pic->p[Y_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w;
1046
1047             p_pic->U_PIXELS = p_pic->p_sys->p_overlay->pixels[1];
1048             p_pic->p[U_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
1049             p_pic->p[U_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h / 2;
1050             p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[1];
1051             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1052             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w / 2;
1053
1054             p_pic->V_PIXELS = p_pic->p_sys->p_overlay->pixels[2];
1055             p_pic->p[V_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
1056             p_pic->p[V_PLANE].i_visible_lines = p_pic->p_sys->p_overlay->h / 2;
1057             p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[2];
1058             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1059             p_pic->p[V_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w / 2;
1060
1061             p_pic->i_planes = 3;
1062             break;
1063
1064         default:
1065             p_pic->p[Y_PLANE].i_pixel_pitch = 2;
1066             p_pic->p[U_PLANE].i_visible_pitch = p_pic->p_sys->p_overlay->w * 2;
1067
1068             p_pic->i_planes = 1;
1069             break;
1070         }
1071     }
1072
1073     return VLC_SUCCESS;
1074 }
1075
1076 /*****************************************************************************
1077  * SetPalette: sets an 8 bpp palette
1078  *****************************************************************************/
1079 static void SetPalette( vout_thread_t *p_vout,
1080                         uint16_t *red, uint16_t *green, uint16_t *blue )
1081 {
1082     SDL_Color colors[256];
1083     int i;
1084
1085     /* Fill colors with color information */
1086     for( i = 0; i < 256; i++ )
1087     {
1088         colors[ i ].r = red[ i ] >> 8;
1089         colors[ i ].g = green[ i ] >> 8;
1090         colors[ i ].b = blue[ i ] >> 8;
1091     }
1092
1093     /* Set palette */
1094     if( SDL_SetColors( p_vout->p_sys->p_display, colors, 0, 256 ) == 0 )
1095     {
1096         msg_Err( p_vout, "failed to set palette" );
1097     }
1098 }
1099