git.sesse.net Git - vlc/blob - plugins/sdl/vout_sdl.c

   1 /*****************************************************************************
   2  * vout_sdl.c: SDL video output display method
   3  *****************************************************************************
   4  * Copyright (C) 1998, 1999, 2000 VideoLAN
   5  * $Id: vout_sdl.c,v 1.60 2001/07/27 16:40:20 massiot Exp $
   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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  24  *****************************************************************************/
  25
  26 #define MODULE_NAME sdl
  27 #include "modules_inner.h"
  28
  29 /*****************************************************************************
  30  * Preamble
  31  *****************************************************************************/
  32 #include "defs.h"
  33
  34 #include <errno.h>                                                 /* ENOMEM */
  35 #include <stdlib.h>                                                /* free() */
  36 #include <string.h>                                            /* strerror() */
  37
  38 #include <sys/types.h>
  39 #ifndef WIN32
  40 #   include <netinet/in.h>                            /* BSD: struct in_addr */
  41 #endif
  42
  43 #if HAVE_SDL_SDL_H
  44 #   include <SDL/SDL.h>
  45 #elif HAVE_SDL11_SDL_H
  46 #   include <SDL11/SDL.h>
  47 #elif HAVE_SDL12_SDL_H
  48 #   include <SDL12/SDL.h>
  49 #else
  50 #   error
  51 #endif
  52
  53 #include "config.h"
  54 #include "common.h"
  55 #include "threads.h"
  56 #include "mtime.h"
  57 #include "tests.h"
  58
  59 #include "video.h"
  60 #include "video_output.h"
  61
  62 #include "intf_msg.h"
  63 #include "interface.h"
  64 /* FIXME: get rid of this */
  65 #include "keystrokes.h"
  66 #include "main.h"
  67 #include "netutils.h"
  68
  69 #include "modules.h"
  70 #include "modules_export.h"
  71
  72 /*****************************************************************************
  73  * FIXME: this file is ...                                                   *
  74  *                                                                           *
  75  *              XXX   XXX     FIXME     XXX     XXX   XXX   XXX              *
  76  *              XXX   XXX   XXX   XXX   XXX     XXX   XXX   XXX              *
  77  *              XXX   XXX   XXX         XXX       FIXME     XXX              *
  78  *              XXX   XXX   XXX  TODO   XXX        XXX      XXX              *
  79  *              XXX   XXX   XXX   XXX   XXX        XXX                       *
  80  *                FIXME       FIXME       FIXME    XXX      XXX              *
  81  *                                                                           *
  82  *****************************************************************************/
  83
  84 /*****************************************************************************
  85  * vout_sys_t: video output SDL method descriptor
  86  *****************************************************************************
  87  * This structure is part of the video output thread descriptor.
  88  * It describes the SDL specific properties of an output thread.
  89  *****************************************************************************/
  90 typedef struct vout_sys_s
  91 {
  92     int i_width;
  93     int i_height;
  94
  95     SDL_Surface *   p_display;                             /* display device */
  96     SDL_Overlay *   p_overlay;                             /* overlay device */
  97
  98     boolean_t   b_overlay;
  99     boolean_t   b_cursor;
 100     boolean_t   b_reopen_display;
 101
 102     boolean_t   b_cursor_autohidden;
 103     mtime_t     i_lastmoved;
 104
 105     Uint8   *   p_sdl_buf[2];                          /* Buffer information */
 106
 107 } vout_sys_t;
 108
 109 /*****************************************************************************
 110  * Local prototypes.
 111  *****************************************************************************/
 112 static int  vout_Probe     ( probedata_t *p_data );
 113 static int  vout_Create    ( struct vout_thread_s * );
 114 static int  vout_Init      ( struct vout_thread_s * );
 115 static void vout_End       ( struct vout_thread_s * );
 116 static void vout_Destroy   ( struct vout_thread_s * );
 117 static int  vout_Manage    ( struct vout_thread_s * );
 118 static void vout_Display   ( struct vout_thread_s * );
 119 static void vout_SetPalette( p_vout_thread_t p_vout, u16 *red, u16 *green,
 120                              u16 *blue, u16 *transp );
 121
 122 static int  SDLOpenDisplay      ( vout_thread_t *p_vout );
 123 static void SDLCloseDisplay     ( vout_thread_t *p_vout );
 124
 125 /*****************************************************************************
 126  * Functions exported as capabilities. They are declared as static so that
 127  * we don't pollute the namespace too much.
 128  *****************************************************************************/
 129 void _M( vout_getfunctions )( function_list_t * p_function_list )
 130 {
 131     p_function_list->pf_probe = vout_Probe;
 132     p_function_list->functions.vout.pf_create     = vout_Create;
 133     p_function_list->functions.vout.pf_init       = vout_Init;
 134     p_function_list->functions.vout.pf_end        = vout_End;
 135     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 136     p_function_list->functions.vout.pf_manage     = vout_Manage;
 137     p_function_list->functions.vout.pf_display    = vout_Display;
 138     p_function_list->functions.vout.pf_setpalette = vout_SetPalette;
 139 }
 140
 141 /*****************************************************************************
 142  * vout_Probe: probe the video driver and return a score
 143  *****************************************************************************
 144  * This function tries to initialize SDL and returns a score to the
 145  * plugin manager so that it can select the best plugin.
 146  *****************************************************************************/
 147 static int vout_Probe( probedata_t *p_data )
 148 {
 149     if( TestMethod( VOUT_METHOD_VAR, "sdl" ) )
 150     {
 151         return( 999 );
 152     }
 153
 154     return( 100 );
 155 }
 156
 157 /*****************************************************************************
 158  * vout_Create: allocate SDL video thread output method
 159  *****************************************************************************
 160  * This function allocate and initialize a SDL vout method. It uses some of the
 161  * vout properties to choose the correct mode, and change them according to the
 162  * mode actually used.
 163  *****************************************************************************/
 164 static int vout_Create( vout_thread_t *p_vout )
 165 {
 166     /* Allocate structure */
 167     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 168     if( p_vout->p_sys == NULL )
 169     {
 170         intf_ErrMsg( "vout error: can't create p_sys (%s)", strerror(ENOMEM) );
 171         return( 1 );
 172     }
 173
 174     /* Initialize library */
 175     if( SDL_Init( SDL_INIT_VIDEO
 176 #ifndef WIN32
 177     /* Win32 SDL implementation doesn't support SDL_INIT_EVENTTHREAD yet*/
 178                 | SDL_INIT_EVENTTHREAD
 179 #endif
 180 #ifdef DEBUG
 181     /* In debug mode you may want vlc to dump a core instead of staying
 182      * stuck */
 183                 | SDL_INIT_NOPARACHUTE
 184 #endif
 185                 ) < 0 )
 186     {
 187         intf_ErrMsg( "vout error: can't initialize SDL (%s)", SDL_GetError() );
 188         free( p_vout->p_sys );
 189         return( 1 );
 190     }
 191
 192     p_vout->p_sys->b_cursor = 1; /* TODO should be done with a main_GetInt.. */
 193
 194     p_vout->p_sys->b_cursor_autohidden = 0;
 195     p_vout->p_sys->i_lastmoved = mdate();
 196
 197     p_vout->b_fullscreen = main_GetIntVariable( VOUT_FULLSCREEN_VAR,
 198                                 VOUT_FULLSCREEN_DEFAULT );
 199     p_vout->p_sys->b_overlay = main_GetIntVariable( VOUT_OVERLAY_VAR,
 200                                 VOUT_OVERLAY_DEFAULT );
 201     p_vout->p_sys->i_width = main_GetIntVariable( VOUT_WIDTH_VAR,
 202                                 VOUT_WIDTH_DEFAULT );
 203     p_vout->p_sys->i_height = main_GetIntVariable( VOUT_HEIGHT_VAR,
 204                                 VOUT_HEIGHT_DEFAULT );
 205
 206     p_vout->p_sys->p_display = NULL;
 207     p_vout->p_sys->p_overlay = NULL;
 208
 209     if( SDLOpenDisplay(p_vout) )
 210     {
 211         intf_ErrMsg( "vout error: can't set up SDL (%s)", SDL_GetError() );
 212         free( p_vout->p_sys );
 213         return( 1 );
 214     }
 215
 216     /* FIXME: get rid of this ASAP, it's FUCKING UGLY */
 217     { intf_thread_t * p_intf = p_main->p_intf;
 218     intf_AssignKey(p_intf, SDLK_q,      INTF_KEY_QUIT, 0);
 219     intf_AssignKey(p_intf, SDLK_ESCAPE, INTF_KEY_QUIT, 0);
 220     /* intf_AssignKey(p_intf,3,'Q'); */
 221     intf_AssignKey(p_intf, SDLK_0,      INTF_KEY_SET_CHANNEL,0);
 222     intf_AssignKey(p_intf, SDLK_1,      INTF_KEY_SET_CHANNEL,1);
 223     intf_AssignKey(p_intf, SDLK_2,      INTF_KEY_SET_CHANNEL,2);
 224     intf_AssignKey(p_intf, SDLK_3,      INTF_KEY_SET_CHANNEL,3);
 225     intf_AssignKey(p_intf, SDLK_4,      INTF_KEY_SET_CHANNEL,4);
 226     intf_AssignKey(p_intf, SDLK_5,      INTF_KEY_SET_CHANNEL,5);
 227     intf_AssignKey(p_intf, SDLK_6,      INTF_KEY_SET_CHANNEL,6);
 228     intf_AssignKey(p_intf, SDLK_7,      INTF_KEY_SET_CHANNEL,7);
 229     intf_AssignKey(p_intf, SDLK_8,      INTF_KEY_SET_CHANNEL,8);
 230     intf_AssignKey(p_intf, SDLK_9,      INTF_KEY_SET_CHANNEL,9);
 231     intf_AssignKey(p_intf, SDLK_PLUS,   INTF_KEY_INC_VOLUME, 0);
 232     intf_AssignKey(p_intf, SDLK_MINUS,  INTF_KEY_DEC_VOLUME, 0);
 233     intf_AssignKey(p_intf, SDLK_m,      INTF_KEY_TOGGLE_VOLUME, 0);
 234     /* intf_AssignKey(p_intf,'M','M'); */
 235     intf_AssignKey(p_intf, SDLK_g,      INTF_KEY_DEC_GAMMA, 0);
 236     /* intf_AssignKey(p_intf,'G','G'); */
 237     intf_AssignKey(p_intf, SDLK_c,      INTF_KEY_TOGGLE_GRAYSCALE, 0);
 238     intf_AssignKey(p_intf, SDLK_SPACE,  INTF_KEY_TOGGLE_INTERFACE, 0);
 239     intf_AssignKey(p_intf, SDLK_i,      INTF_KEY_TOGGLE_INFO, 0);
 240     intf_AssignKey(p_intf, SDLK_s,      INTF_KEY_TOGGLE_SCALING, 0);
 241     intf_AssignKey(p_intf, SDLK_d,      INTF_KEY_DUMP_STREAM, 0); }
 242
 243     return( 0 );
 244 }
 245
 246 /*****************************************************************************
 247  * vout_Init: initialize SDL video thread output method
 248  *****************************************************************************
 249  * This function initialize the SDL display device.
 250  *****************************************************************************/
 251 static int vout_Init( vout_thread_t *p_vout )
 252 {
 253     /* This hack is hugly, but hey, you are, too. */
 254
 255     SDL_Overlay *   p_overlay;
 256
 257     p_overlay = SDL_CreateYUVOverlay(
 258            main_GetIntVariable( VOUT_WIDTH_VAR,VOUT_WIDTH_DEFAULT ),
 259            main_GetIntVariable( VOUT_HEIGHT_VAR,VOUT_HEIGHT_DEFAULT ),
 260                                       SDL_YV12_OVERLAY,
 261                                       p_vout->p_sys->p_display );
 262
 263     if( p_overlay == NULL )
 264     {
 265         intf_ErrMsg( "vout error: could not create SDL overlay" );
 266         p_vout->b_need_render = 1;
 267         return( 0 );
 268     }
 269
 270     intf_WarnMsg( 2, "vout: YUV acceleration %s",
 271               p_overlay->hw_overlay ? "activated" : "unavailable !" );
 272     p_vout->b_need_render = !p_overlay->hw_overlay;
 273
 274     SDL_FreeYUVOverlay( p_overlay );
 275
 276     return( 0 );
 277 }
 278
 279 /*****************************************************************************
 280  * vout_End: terminate Sys video thread output method
 281  *****************************************************************************
 282  * Terminate an output method created by vout_SDLCreate
 283  *****************************************************************************/
 284 static void vout_End( vout_thread_t *p_vout )
 285 {
 286     SDLCloseDisplay( p_vout );
 287     SDL_QuitSubSystem( SDL_INIT_VIDEO );
 288 }
 289
 290 /*****************************************************************************
 291  * vout_Destroy: destroy Sys video thread output method
 292  *****************************************************************************
 293  * Terminate an output method created by vout_SDLCreate
 294  *****************************************************************************/
 295 static void vout_Destroy( vout_thread_t *p_vout )
 296 {
 297     free( p_vout->p_sys );
 298 }
 299
 300 /*****************************************************************************
 301  * vout_Manage: handle Sys events
 302  *****************************************************************************
 303  * This function should be called regularly by video output thread. It returns
 304  * a non null value if an error occured.
 305  *****************************************************************************/
 306 static int vout_Manage( vout_thread_t *p_vout )
 307 {
 308     SDL_Event event;                                            /* SDL event */
 309     char *    p_key;
 310
 311     /* Process events */
 312     while( SDL_PollEvent(&event) )
 313     {
 314         switch( event.type )
 315         {
 316         case SDL_VIDEORESIZE:                          /* Resizing of window */
 317             p_vout->i_width = event.resize.w;
 318             p_vout->i_height = event.resize.h;
 319             p_vout->i_changes |= VOUT_SIZE_CHANGE;
 320             break;
 321
 322         case SDL_MOUSEMOTION:
 323             if( p_vout->p_sys->b_cursor &&
 324                 (abs(event.motion.xrel) > 2 || abs(event.motion.yrel) > 2) )
 325             {
 326                 if( p_vout->p_sys->b_cursor_autohidden )
 327                 {
 328                     p_vout->p_sys->b_cursor_autohidden = 0;
 329                     SDL_ShowCursor( 1 );
 330                 }
 331                 else
 332                 {
 333                     p_vout->p_sys->i_lastmoved = mdate();
 334                 }
 335             }
 336             break;
 337
 338         case SDL_MOUSEBUTTONUP:
 339             switch( event.button.button )
 340             {
 341             case SDL_BUTTON_RIGHT:
 342                 p_main->p_intf->b_menu_change = 1;
 343                 break;
 344             }
 345             break;
 346
 347         case SDL_MOUSEBUTTONDOWN:
 348             switch( event.button.button )
 349             {
 350             case SDL_BUTTON_MIDDLE:
 351                 p_vout->i_changes |= VOUT_CURSOR_CHANGE;
 352                 break;
 353             }
 354             break;
 355
 356         case SDL_QUIT:
 357             intf_ProcessKey( p_main->p_intf, SDLK_q );
 358             break;
 359
 360         case SDL_KEYDOWN:                             /* if a key is pressed */
 361
 362             switch( event.key.keysym.sym )
 363             {
 364             case SDLK_f:                             /* switch to fullscreen */
 365                 p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 366                 break;
 367
 368             case SDLK_y:                               /* switch to hard YUV */
 369                 p_vout->i_changes |= VOUT_YUV_CHANGE;
 370                 break;
 371
 372             case SDLK_c:                                 /* toggle grayscale */
 373                 p_vout->b_grayscale = ! p_vout->b_grayscale;
 374                 p_vout->i_changes |= VOUT_GRAYSCALE_CHANGE;
 375                 break;
 376
 377             case SDLK_i:                                      /* toggle info */
 378                 p_vout->b_info = ! p_vout->b_info;
 379                 p_vout->i_changes |= VOUT_INFO_CHANGE;
 380                 break;
 381
 382             case SDLK_s:                                   /* toggle scaling */
 383                 p_vout->b_scale = ! p_vout->b_scale;
 384                 p_vout->i_changes |= VOUT_SCALE_CHANGE;
 385                 break;
 386
 387             case SDLK_SPACE:                             /* toggle interface */
 388                 p_vout->b_interface = ! p_vout->b_interface;
 389                 p_vout->i_changes |= VOUT_INTF_CHANGE;
 390                 break;
 391
 392             case SDLK_F10:
 393                 network_ChannelJoin( 0 );
 394                 break;
 395             case SDLK_F1:
 396                 network_ChannelJoin( 1 );
 397                 break;
 398             case SDLK_F2:
 399                 network_ChannelJoin( 2 );
 400                 break;
 401             case SDLK_F3:
 402                 network_ChannelJoin( 3 );
 403                 break;
 404             case SDLK_F4:
 405                 network_ChannelJoin( 4 );
 406                 break;
 407             case SDLK_F5:
 408                 network_ChannelJoin( 5 );
 409                 break;
 410             case SDLK_F6:
 411                 network_ChannelJoin( 6 );
 412                 break;
 413             case SDLK_F7:
 414                 network_ChannelJoin( 7 );
 415                 break;
 416             case SDLK_F8:
 417                 network_ChannelJoin( 8 );
 418                 break;
 419             case SDLK_F9:
 420                 network_ChannelJoin( 9 );
 421                 break;
 422
 423             case SDLK_MENU:
 424                 p_main->p_intf->b_menu_change = 1;
 425                 break;
 426
 427             default:
 428                 p_key = SDL_GetKeyName( event.key.keysym.sym ) ;
 429                 if( intf_ProcessKey( p_main->p_intf,
 430                                      (char )event.key.keysym.sym ) )
 431                 {
 432                    intf_DbgMsg( "unhandled key '%c' (%i)",
 433                                 (char)event.key.keysym.sym,
 434                                 event.key.keysym.sym );
 435                 }
 436                 break;
 437             }
 438             break;
 439
 440         default:
 441             break;
 442         }
 443     }
 444
 445     /*
 446      * Size Change
 447      */
 448     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 449     {
 450         p_vout->p_sys->i_width = p_vout->i_width;
 451         p_vout->p_sys->i_height = p_vout->i_height;
 452
 453         /* Need to reopen display */
 454         SDLCloseDisplay( p_vout );
 455         if( SDLOpenDisplay( p_vout ) )
 456         {
 457           intf_ErrMsg( "vout error: can't reopen display after resize" );
 458           return( 1 );
 459         }
 460         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 461     }
 462
 463     /*
 464      * YUV Change
 465      */
 466     if( p_vout->i_changes & VOUT_YUV_CHANGE )
 467     {
 468         p_vout->b_need_render = ! p_vout->b_need_render;
 469
 470         /* Need to reopen display */
 471         SDLCloseDisplay( p_vout );
 472         if( SDLOpenDisplay( p_vout ) )
 473         {
 474           intf_ErrMsg( "error: can't reopen display after YUV change" );
 475           return( 1 );
 476         }
 477         p_vout->i_changes &= ~VOUT_YUV_CHANGE;
 478     }
 479
 480     /*
 481      * Fullscreen change
 482      */
 483     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 484     {
 485         p_vout->b_fullscreen = ! p_vout->b_fullscreen;
 486
 487         SDL_WM_ToggleFullScreen(p_vout->p_sys->p_display);
 488
 489         p_vout->p_sys->b_cursor_autohidden = 0;
 490         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 491                         ! p_vout->p_sys->b_cursor_autohidden );
 492
 493         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 494     }
 495
 496     /*
 497      * Pointer change
 498      */
 499     if( ! p_vout->p_sys->b_cursor_autohidden &&
 500         ( mdate() - p_vout->p_sys->i_lastmoved > 2000000 ) )
 501     {
 502         /* Hide the mouse automatically */
 503         p_vout->p_sys->b_cursor_autohidden = 1;
 504         SDL_ShowCursor( 0 );
 505     }
 506
 507     if( p_vout->i_changes & VOUT_CURSOR_CHANGE )
 508     {
 509         p_vout->p_sys->b_cursor = ! p_vout->p_sys->b_cursor;
 510
 511         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 512                         ! p_vout->p_sys->b_cursor_autohidden );
 513
 514         p_vout->i_changes &= ~VOUT_CURSOR_CHANGE;
 515     }
 516
 517     return( 0 );
 518 }
 519
 520 /*****************************************************************************
 521  * vout_SetPalette: sets an 8 bpp palette
 522  *****************************************************************************
 523  * This function sets the palette given as an argument. It does not return
 524  * anything, but could later send information on which colors it was unable
 525  * to set.
 526  *****************************************************************************/
 527 static void vout_SetPalette( p_vout_thread_t p_vout, u16 *red, u16 *green,
 528                          u16 *blue, u16 *transp)
 529 {
 530      /* Create a display surface with a grayscale palette */
 531     SDL_Color colors[256];
 532     int i;
 533
 534     /* Fill colors with color information */
 535     for( i = 0; i < 256; i++ )
 536     {
 537         colors[ i ].r = red[ i ] >> 8;
 538         colors[ i ].g = green[ i ] >> 8;
 539         colors[ i ].b = blue[ i ] >> 8;
 540     }
 541
 542     /* Set palette */
 543     if( SDL_SetColors( p_vout->p_sys->p_display, colors, 0, 256 ) == 0 )
 544     {
 545         intf_ErrMsg( "vout error: failed setting palette" );
 546     }
 547
 548 }
 549
 550 /*****************************************************************************
 551  * vout_Display: displays previously rendered output
 552  *****************************************************************************
 553  * This function send the currently rendered image to the display, wait until
 554  * it is displayed and switch the two rendering buffer, preparing next frame.
 555  *****************************************************************************/
 556 static void vout_Display( vout_thread_t *p_vout )
 557 {
 558     SDL_Rect    disp;
 559     if((p_vout->p_sys->p_display != NULL) && !p_vout->p_sys->b_reopen_display)
 560     {
 561         if( !p_vout->b_need_render )
 562         {
 563             /*
 564              * p_vout->p_rendered_pic->p_y/u/v contains the YUV buffers to
 565              * render
 566              */
 567             /* TODO: support for streams other than 4:2:0 */
 568             /* create the overlay if necessary */
 569             if( p_vout->p_sys->p_overlay == NULL )
 570             {
 571                 p_vout->p_sys->p_overlay = SDL_CreateYUVOverlay(
 572                                              p_vout->p_rendered_pic->i_width,
 573                                              p_vout->p_rendered_pic->i_height,
 574                                              SDL_YV12_OVERLAY,
 575                                              p_vout->p_sys->p_display );
 576
 577                 if( p_vout->p_sys->p_overlay != NULL )
 578                 {
 579                     intf_WarnMsg( 2, "vout: YUV acceleration %s",
 580                                   p_vout->p_sys->p_overlay->hw_overlay
 581                                    ? "activated" : "unavailable !" );
 582                 }
 583             }
 584
 585             if( p_vout->p_sys->p_overlay == NULL )
 586             {
 587                 /* Overlay allocation failed, switch back to software mode */
 588                 intf_ErrMsg( "vout error: could not create SDL overlay" );
 589                 p_vout->b_need_render = 1;
 590             }
 591             else
 592             {
 593                 SDL_LockYUVOverlay( p_vout->p_sys->p_overlay );
 594                 /* copy the data into video buffers */
 595                 /* Y first */
 596                 memcpy( p_vout->p_sys->p_overlay->pixels[0],
 597                         p_vout->p_rendered_pic->p_y,
 598                         p_vout->p_sys->p_overlay->h *
 599                         p_vout->p_sys->p_overlay->pitches[0] );
 600                 /* then V */
 601                 memcpy( p_vout->p_sys->p_overlay->pixels[1],
 602                         p_vout->p_rendered_pic->p_v,
 603                         p_vout->p_sys->p_overlay->h *
 604                         p_vout->p_sys->p_overlay->pitches[1] / 2 );
 605                 /* and U */
 606                 memcpy( p_vout->p_sys->p_overlay->pixels[2],
 607                         p_vout->p_rendered_pic->p_u,
 608                         p_vout->p_sys->p_overlay->h *
 609                         p_vout->p_sys->p_overlay->pitches[2] / 2 );
 610
 611 #define BUFFER (&p_vout->p_buffer[p_vout->i_buffer_index])
 612                 disp.w = BUFFER->i_pic_width;
 613                 disp.h = BUFFER->i_pic_height;
 614 #undef BUFFER
 615                 disp.x = (p_vout->i_width - disp.w)/2;
 616                 disp.y = (p_vout->i_height - disp.h)/2;
 617
 618                 SDL_DisplayYUVOverlay( p_vout->p_sys->p_overlay , &disp );
 619                 SDL_UnlockYUVOverlay(p_vout->p_sys->p_overlay);
 620
 621                 return;
 622             }
 623         }
 624
 625         /* Software YUV: change display frame */
 626         SDL_Flip( p_vout->p_sys->p_display );
 627     }
 628 }
 629
 630 /* following functions are local */
 631
 632 /*****************************************************************************
 633  * SDLOpenDisplay: open and initialize SDL device
 634  *****************************************************************************
 635  * Open and initialize display according to preferences specified in the vout
 636  * thread fields.
 637  *****************************************************************************/
 638 static int SDLOpenDisplay( vout_thread_t *p_vout )
 639 {
 640     SDL_Rect    clipping_rect;
 641     Uint32      flags;
 642     int bpp;
 643     /* Open display
 644      * TODO: Check that we can request for a DOUBLEBUF HWSURFACE display
 645      */
 646
 647     /* init flags and cursor */
 648     flags = SDL_ANYFORMAT | SDL_HWPALETTE;
 649
 650     if( p_vout->b_fullscreen )
 651     {
 652         flags |= SDL_FULLSCREEN;
 653     }
 654     else
 655     {
 656         flags |= SDL_RESIZABLE;
 657     }
 658
 659     if( p_vout->b_need_render )
 660     {
 661         flags |= SDL_HWSURFACE | SDL_DOUBLEBUF;
 662     }
 663     else
 664     {
 665         flags |= SDL_SWSURFACE; /* save video memory */
 666     }
 667
 668     bpp = SDL_VideoModeOK( p_vout->p_sys->i_width,
 669                            p_vout->p_sys->i_height,
 670                            p_vout->i_screen_depth, flags );
 671
 672     if( bpp == 0 )
 673     {
 674         intf_ErrMsg( "vout error: no video mode available" );
 675         return( 1 );
 676     }
 677
 678     p_vout->p_sys->p_display = SDL_SetVideoMode(p_vout->p_sys->i_width,
 679                                                 p_vout->p_sys->i_height,
 680                                                 bpp, flags);
 681
 682     if( p_vout->p_sys->p_display == NULL )
 683     {
 684         intf_ErrMsg( "vout error: cannot set video mode" );
 685         return( 1 );
 686     }
 687
 688     SDL_LockSurface( p_vout->p_sys->p_display );
 689
 690     SDL_WM_SetCaption( VOUT_TITLE " (SDL output)",
 691                        VOUT_TITLE " (SDL output)" );
 692     SDL_EventState(SDL_KEYUP , SDL_IGNORE);                /* ignore keys up */
 693
 694     if( p_vout->b_need_render )
 695     {
 696         p_vout->p_sys->p_sdl_buf[ 0 ] = p_vout->p_sys->p_display->pixels;
 697         SDL_Flip(p_vout->p_sys->p_display);
 698         p_vout->p_sys->p_sdl_buf[ 1 ] = p_vout->p_sys->p_display->pixels;
 699         SDL_Flip(p_vout->p_sys->p_display);
 700
 701         /* Set clipping for text */
 702         clipping_rect.x = 0;
 703         clipping_rect.y = 0;
 704         clipping_rect.w = p_vout->p_sys->p_display->w;
 705         clipping_rect.h = p_vout->p_sys->p_display->h;
 706         SDL_SetClipRect(p_vout->p_sys->p_display, &clipping_rect);
 707
 708         /* Set thread information */
 709         p_vout->i_width =           p_vout->p_sys->p_display->w;
 710         p_vout->i_height =          p_vout->p_sys->p_display->h;
 711         p_vout->i_bytes_per_line =  p_vout->p_sys->p_display->pitch;
 712
 713         p_vout->i_screen_depth =
 714             p_vout->p_sys->p_display->format->BitsPerPixel;
 715         p_vout->i_bytes_per_pixel =
 716             p_vout->p_sys->p_display->format->BytesPerPixel;
 717
 718         p_vout->i_red_mask =        p_vout->p_sys->p_display->format->Rmask;
 719         p_vout->i_green_mask =      p_vout->p_sys->p_display->format->Gmask;
 720         p_vout->i_blue_mask =       p_vout->p_sys->p_display->format->Bmask;
 721
 722         /* FIXME: palette in 8bpp ?? */
 723         /* Set and initialize buffers */
 724         p_vout->pf_setbuffers( p_vout, p_vout->p_sys->p_sdl_buf[ 0 ],
 725                                        p_vout->p_sys->p_sdl_buf[ 1 ] );
 726     }
 727     else
 728     {
 729         p_vout->p_sys->p_sdl_buf[ 0 ] = p_vout->p_sys->p_display->pixels;
 730         p_vout->p_sys->p_sdl_buf[ 1 ] = p_vout->p_sys->p_display->pixels;
 731
 732         /* Set thread information */
 733         p_vout->i_width =           p_vout->p_sys->p_display->w;
 734         p_vout->i_height =          p_vout->p_sys->p_display->h;
 735         p_vout->i_bytes_per_line =  p_vout->p_sys->p_display->pitch;
 736
 737         p_vout->pf_setbuffers( p_vout, p_vout->p_sys->p_sdl_buf[ 0 ],
 738                                        p_vout->p_sys->p_sdl_buf[ 1 ] );
 739     }
 740
 741     p_vout->p_sys->b_reopen_display = 0;
 742
 743     return( 0 );
 744 }
 745
 746 /*****************************************************************************
 747  * SDLCloseDisplay: close and reset SDL device
 748  *****************************************************************************
 749  * This function returns all resources allocated by SDLOpenDisplay and restore
 750  * the original state of the device.
 751  *****************************************************************************/
 752 static void SDLCloseDisplay( vout_thread_t *p_vout )
 753 {
 754     if( p_vout->p_sys->p_display != NULL )
 755     {
 756         if( p_vout->p_sys->p_overlay != NULL )
 757         {
 758             SDL_FreeYUVOverlay( p_vout->p_sys->p_overlay );
 759             p_vout->p_sys->p_overlay = NULL;
 760         }
 761
 762         SDL_UnlockSurface ( p_vout->p_sys->p_display );
 763         SDL_FreeSurface( p_vout->p_sys->p_display );
 764         p_vout->p_sys->p_display = NULL;
 765     }
 766 }
 767