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 1.55 2001/06/07 22:14:56 sam 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 #include <SDL/SDL.h>
  44
  45 #include "config.h"
  46 #include "common.h"
  47 #include "threads.h"
  48 #include "mtime.h"
  49 #include "tests.h"
  50
  51 #include "video.h"
  52 #include "video_output.h"
  53
  54 #include "intf_msg.h"
  55 #include "interface.h"
  56 /* FIXME: get rid of this */
  57 #include "keystrokes.h"
  58 #include "main.h"
  59 #include "netutils.h"
  60
  61 #include "modules.h"
  62 #include "modules_export.h"
  63
  64 /*****************************************************************************
  65  * FIXME: this file is ...                                                   *
  66  *                                                                           *
  67  *              XXX   XXX     FIXME     XXX     XXX   XXX   XXX              *
  68  *              XXX   XXX   XXX   XXX   XXX     XXX   XXX   XXX              *
  69  *              XXX   XXX   XXX         XXX       FIXME     XXX              *
  70  *              XXX   XXX   XXX  TODO   XXX        XXX      XXX              *
  71  *              XXX   XXX   XXX   XXX   XXX        XXX                       *
  72  *                FIXME       FIXME       FIXME    XXX      XXX              *
  73  *                                                                           *
  74  *****************************************************************************/
  75
  76 /*****************************************************************************
  77  * vout_sys_t: video output SDL method descriptor
  78  *****************************************************************************
  79  * This structure is part of the video output thread descriptor.
  80  * It describes the SDL specific properties of an output thread.
  81  *****************************************************************************/
  82 typedef struct vout_sys_s
  83 {
  84     int i_width;
  85     int i_height;
  86
  87     SDL_Surface *   p_display;                             /* display device */
  88     SDL_Overlay *   p_overlay;                             /* overlay device */
  89
  90     boolean_t   b_overlay;
  91     boolean_t   b_cursor;
  92     boolean_t   b_reopen_display;
  93
  94     boolean_t   b_cursor_autohidden;
  95     mtime_t     i_lastmoved;
  96
  97     Uint8   *   p_sdl_buf[2];                          /* Buffer information */
  98
  99 } vout_sys_t;
 100
 101 /*****************************************************************************
 102  * Local prototypes.
 103  *****************************************************************************/
 104 static int  vout_Probe     ( probedata_t *p_data );
 105 static int  vout_Create    ( struct vout_thread_s * );
 106 static int  vout_Init      ( struct vout_thread_s * );
 107 static void vout_End       ( struct vout_thread_s * );
 108 static void vout_Destroy   ( struct vout_thread_s * );
 109 static int  vout_Manage    ( struct vout_thread_s * );
 110 static void vout_Display   ( struct vout_thread_s * );
 111 static void vout_SetPalette( p_vout_thread_t p_vout, u16 *red, u16 *green,
 112                              u16 *blue, u16 *transp );
 113
 114 static int  SDLOpenDisplay      ( vout_thread_t *p_vout );
 115 static void SDLCloseDisplay     ( vout_thread_t *p_vout );
 116
 117 /*****************************************************************************
 118  * Functions exported as capabilities. They are declared as static so that
 119  * we don't pollute the namespace too much.
 120  *****************************************************************************/
 121 void _M( vout_getfunctions )( function_list_t * p_function_list )
 122 {
 123     p_function_list->pf_probe = vout_Probe;
 124     p_function_list->functions.vout.pf_create     = vout_Create;
 125     p_function_list->functions.vout.pf_init       = vout_Init;
 126     p_function_list->functions.vout.pf_end        = vout_End;
 127     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 128     p_function_list->functions.vout.pf_manage     = vout_Manage;
 129     p_function_list->functions.vout.pf_display    = vout_Display;
 130     p_function_list->functions.vout.pf_setpalette = vout_SetPalette;
 131 }
 132
 133 /*****************************************************************************
 134  * vout_Probe: probe the video driver and return a score
 135  *****************************************************************************
 136  * This function tries to initialize SDL and returns a score to the
 137  * plugin manager so that it can select the best plugin.
 138  *****************************************************************************/
 139 static int vout_Probe( probedata_t *p_data )
 140 {
 141     if( TestMethod( VOUT_METHOD_VAR, "sdl" ) )
 142     {
 143         return( 999 );
 144     }
 145
 146     return( 100 );
 147 }
 148
 149 /*****************************************************************************
 150  * vout_Create: allocate SDL video thread output method
 151  *****************************************************************************
 152  * This function allocate and initialize a SDL vout method. It uses some of the
 153  * vout properties to choose the correct mode, and change them according to the
 154  * mode actually used.
 155  *****************************************************************************/
 156 static int vout_Create( vout_thread_t *p_vout )
 157 {
 158     /* Allocate structure */
 159     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 160     if( p_vout->p_sys == NULL )
 161     {
 162         intf_ErrMsg( "vout error: can't create p_sys (%s)", strerror(ENOMEM) );
 163         return( 1 );
 164     }
 165
 166     /* Initialize library */
 167     if( SDL_Init( SDL_INIT_VIDEO
 168 #ifndef WIN32
 169     /* Win32 SDL implementation doesn't support SDL_INIT_EVENTTHREAD yet*/
 170                 | SDL_INIT_EVENTTHREAD
 171 #endif
 172                 | SDL_INIT_NOPARACHUTE ) < 0 )
 173     {
 174         intf_ErrMsg( "vout error: can't initialize SDL (%s)", SDL_GetError() );
 175         free( p_vout->p_sys );
 176         return( 1 );
 177     }
 178
 179     p_vout->p_sys->b_cursor = 1; /* TODO should be done with a main_GetInt.. */
 180
 181     p_vout->p_sys->b_cursor_autohidden = 0;
 182     p_vout->p_sys->i_lastmoved = mdate();
 183
 184     p_vout->b_fullscreen = main_GetIntVariable( VOUT_FULLSCREEN_VAR,
 185                                 VOUT_FULLSCREEN_DEFAULT );
 186     p_vout->p_sys->b_overlay = main_GetIntVariable( VOUT_OVERLAY_VAR,
 187                                 VOUT_OVERLAY_DEFAULT );
 188     p_vout->p_sys->i_width = main_GetIntVariable( VOUT_WIDTH_VAR,
 189                                 VOUT_WIDTH_DEFAULT );
 190     p_vout->p_sys->i_height = main_GetIntVariable( VOUT_HEIGHT_VAR,
 191                                 VOUT_HEIGHT_DEFAULT );
 192
 193     p_vout->p_sys->p_display = NULL;
 194     p_vout->p_sys->p_overlay = NULL;
 195
 196     if( SDLOpenDisplay(p_vout) )
 197     {
 198         intf_ErrMsg( "vout error: can't set up SDL (%s)", SDL_GetError() );
 199         free( p_vout->p_sys );
 200         return( 1 );
 201     }
 202
 203     /* FIXME: get rid of this ASAP, it's FUCKING UGLY */
 204     { intf_thread_t * p_intf = p_main->p_intf;
 205     intf_AssignKey(p_intf, SDLK_q,      INTF_KEY_QUIT, 0);
 206     intf_AssignKey(p_intf, SDLK_ESCAPE, INTF_KEY_QUIT, 0);
 207     /* intf_AssignKey(p_intf,3,'Q'); */
 208     intf_AssignKey(p_intf, SDLK_0,      INTF_KEY_SET_CHANNEL,0);
 209     intf_AssignKey(p_intf, SDLK_1,      INTF_KEY_SET_CHANNEL,1);
 210     intf_AssignKey(p_intf, SDLK_2,      INTF_KEY_SET_CHANNEL,2);
 211     intf_AssignKey(p_intf, SDLK_3,      INTF_KEY_SET_CHANNEL,3);
 212     intf_AssignKey(p_intf, SDLK_4,      INTF_KEY_SET_CHANNEL,4);
 213     intf_AssignKey(p_intf, SDLK_5,      INTF_KEY_SET_CHANNEL,5);
 214     intf_AssignKey(p_intf, SDLK_6,      INTF_KEY_SET_CHANNEL,6);
 215     intf_AssignKey(p_intf, SDLK_7,      INTF_KEY_SET_CHANNEL,7);
 216     intf_AssignKey(p_intf, SDLK_8,      INTF_KEY_SET_CHANNEL,8);
 217     intf_AssignKey(p_intf, SDLK_9,      INTF_KEY_SET_CHANNEL,9);
 218     intf_AssignKey(p_intf, SDLK_PLUS,   INTF_KEY_INC_VOLUME, 0);
 219     intf_AssignKey(p_intf, SDLK_MINUS,  INTF_KEY_DEC_VOLUME, 0);
 220     intf_AssignKey(p_intf, SDLK_m,      INTF_KEY_TOGGLE_VOLUME, 0);
 221     /* intf_AssignKey(p_intf,'M','M'); */
 222     intf_AssignKey(p_intf, SDLK_g,      INTF_KEY_DEC_GAMMA, 0);
 223     /* intf_AssignKey(p_intf,'G','G'); */
 224     intf_AssignKey(p_intf, SDLK_c,      INTF_KEY_TOGGLE_GRAYSCALE, 0);
 225     intf_AssignKey(p_intf, SDLK_SPACE,  INTF_KEY_TOGGLE_INTERFACE, 0);
 226     intf_AssignKey(p_intf, SDLK_i,      INTF_KEY_TOGGLE_INFO, 0);
 227     intf_AssignKey(p_intf, SDLK_s,      INTF_KEY_TOGGLE_SCALING, 0);
 228     intf_AssignKey(p_intf, SDLK_d,      INTF_KEY_DUMP_STREAM, 0); }
 229
 230     return( 0 );
 231 }
 232
 233 /*****************************************************************************
 234  * vout_Init: initialize SDL video thread output method
 235  *****************************************************************************
 236  * This function initialize the SDL display device.
 237  *****************************************************************************/
 238 static int vout_Init( vout_thread_t *p_vout )
 239 {
 240     /* This hack is hugly, but hey, you are, too. */
 241
 242     SDL_Overlay *   p_overlay;
 243
 244     p_overlay = SDL_CreateYUVOverlay(
 245            main_GetIntVariable( VOUT_WIDTH_VAR,VOUT_WIDTH_DEFAULT ),
 246            main_GetIntVariable( VOUT_HEIGHT_VAR,VOUT_HEIGHT_DEFAULT ),
 247                                       SDL_YV12_OVERLAY,
 248                                       p_vout->p_sys->p_display );
 249     intf_WarnMsg( 2, "vout: YUV acceleration %s",
 250               p_overlay->hw_overlay ? "activated" : "unavailable !" );
 251     p_vout->b_need_render = !p_overlay->hw_overlay;
 252
 253     SDL_FreeYUVOverlay( p_overlay );
 254
 255     return( 0 );
 256 }
 257
 258 /*****************************************************************************
 259  * vout_End: terminate Sys video thread output method
 260  *****************************************************************************
 261  * Terminate an output method created by vout_SDLCreate
 262  *****************************************************************************/
 263 static void vout_End( vout_thread_t *p_vout )
 264 {
 265     SDLCloseDisplay( p_vout );
 266     SDL_QuitSubSystem( SDL_INIT_VIDEO );
 267 }
 268
 269 /*****************************************************************************
 270  * vout_Destroy: destroy Sys video thread output method
 271  *****************************************************************************
 272  * Terminate an output method created by vout_SDLCreate
 273  *****************************************************************************/
 274 static void vout_Destroy( vout_thread_t *p_vout )
 275 {
 276     free( p_vout->p_sys );
 277 }
 278
 279 /*****************************************************************************
 280  * vout_Manage: handle Sys events
 281  *****************************************************************************
 282  * This function should be called regularly by video output thread. It returns
 283  * a non null value if an error occured.
 284  *****************************************************************************/
 285 static int vout_Manage( vout_thread_t *p_vout )
 286 {
 287     SDL_Event event;                                            /* SDL event */
 288     char *    p_key;
 289
 290     /* Process events */
 291     while( SDL_PollEvent(&event) )
 292     {
 293         switch( event.type )
 294         {
 295         case SDL_VIDEORESIZE:                          /* Resizing of window */
 296             p_vout->i_width = event.resize.w;
 297             p_vout->i_height = event.resize.h;
 298             p_vout->i_changes |= VOUT_SIZE_CHANGE;
 299             break;
 300
 301         case SDL_MOUSEMOTION:
 302             if( p_vout->p_sys->b_cursor &&
 303                 (abs(event.motion.xrel) > 2 || abs(event.motion.yrel) > 2) )
 304             {
 305                 if( p_vout->p_sys->b_cursor_autohidden )
 306                 {
 307                     p_vout->p_sys->b_cursor_autohidden = 0;
 308                     SDL_ShowCursor( 1 );
 309                 }
 310                 else
 311                 {
 312                     p_vout->p_sys->i_lastmoved = mdate();
 313                 }
 314             }
 315             break;
 316
 317         case SDL_MOUSEBUTTONUP:
 318             switch( event.button.button )
 319             {
 320             case SDL_BUTTON_RIGHT:
 321                 p_main->p_intf->b_menu_change = 1;
 322                 break;
 323             }
 324             break;
 325
 326         case SDL_MOUSEBUTTONDOWN:
 327             switch( event.button.button )
 328             {
 329             case SDL_BUTTON_MIDDLE:
 330                 p_vout->i_changes |= VOUT_CURSOR_CHANGE;
 331                 break;
 332             }
 333             break;
 334
 335         case SDL_QUIT:
 336             intf_ProcessKey( p_main->p_intf, SDLK_q );
 337             break;
 338
 339         case SDL_KEYDOWN:                             /* if a key is pressed */
 340
 341             switch( event.key.keysym.sym )
 342             {
 343             case SDLK_f:                             /* switch to fullscreen */
 344                 p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 345                 break;
 346
 347             case SDLK_y:                               /* switch to hard YUV */
 348                 p_vout->i_changes |= VOUT_YUV_CHANGE;
 349                 break;
 350
 351             case SDLK_c:                                 /* toggle grayscale */
 352                 p_vout->b_grayscale = ! p_vout->b_grayscale;
 353                 p_vout->i_changes |= VOUT_GRAYSCALE_CHANGE;
 354                 break;
 355
 356             case SDLK_i:                                      /* toggle info */
 357                 p_vout->b_info = ! p_vout->b_info;
 358                 p_vout->i_changes |= VOUT_INFO_CHANGE;
 359                 break;
 360
 361             case SDLK_s:                                   /* toggle scaling */
 362                 p_vout->b_scale = ! p_vout->b_scale;
 363                 p_vout->i_changes |= VOUT_SCALE_CHANGE;
 364                 break;
 365
 366             case SDLK_SPACE:                             /* toggle interface */
 367                 p_vout->b_interface = ! p_vout->b_interface;
 368                 p_vout->i_changes |= VOUT_INTF_CHANGE;
 369                 break;
 370
 371             case SDLK_F10:
 372                 network_ChannelJoin( 0 );
 373                 break;
 374             case SDLK_F1:
 375                 network_ChannelJoin( 1 );
 376                 break;
 377             case SDLK_F2:
 378                 network_ChannelJoin( 2 );
 379                 break;
 380             case SDLK_F3:
 381                 network_ChannelJoin( 3 );
 382                 break;
 383             case SDLK_F4:
 384                 network_ChannelJoin( 4 );
 385                 break;
 386             case SDLK_F5:
 387                 network_ChannelJoin( 5 );
 388                 break;
 389             case SDLK_F6:
 390                 network_ChannelJoin( 6 );
 391                 break;
 392             case SDLK_F7:
 393                 network_ChannelJoin( 7 );
 394                 break;
 395             case SDLK_F8:
 396                 network_ChannelJoin( 8 );
 397                 break;
 398             case SDLK_F9:
 399                 network_ChannelJoin( 9 );
 400                 break;
 401
 402             case SDLK_MENU:
 403                 p_main->p_intf->b_menu_change = 1;
 404                 break;
 405
 406             default:
 407                 p_key = SDL_GetKeyName( event.key.keysym.sym ) ;
 408                 if( intf_ProcessKey( p_main->p_intf,
 409                                      (char )event.key.keysym.sym ) )
 410                 {
 411                    intf_DbgMsg( "unhandled key '%c' (%i)",
 412                                 (char)event.key.keysym.sym,
 413                                 event.key.keysym.sym );
 414                 }
 415                 break;
 416             }
 417             break;
 418
 419         default:
 420             break;
 421         }
 422     }
 423
 424     /*
 425      * Size Change
 426      */
 427     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 428     {
 429         p_vout->p_sys->i_width = p_vout->i_width;
 430         p_vout->p_sys->i_height = p_vout->i_height;
 431
 432         /* Need to reopen display */
 433         SDLCloseDisplay( p_vout );
 434         if( SDLOpenDisplay( p_vout ) )
 435         {
 436           intf_ErrMsg( "vout error: can't reopen display after resize" );
 437           return( 1 );
 438         }
 439         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 440     }
 441
 442     /*
 443      * YUV Change
 444      */
 445     if( p_vout->i_changes & VOUT_YUV_CHANGE )
 446     {
 447         p_vout->b_need_render = ! p_vout->b_need_render;
 448
 449         /* Need to reopen display */
 450         SDLCloseDisplay( p_vout );
 451         if( SDLOpenDisplay( p_vout ) )
 452         {
 453           intf_ErrMsg( "error: can't reopen display after YUV change" );
 454           return( 1 );
 455         }
 456         p_vout->i_changes &= ~VOUT_YUV_CHANGE;
 457     }
 458
 459     /*
 460      * Fullscreen change
 461      */
 462     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 463     {
 464         p_vout->b_fullscreen = ! p_vout->b_fullscreen;
 465
 466         SDL_WM_ToggleFullScreen(p_vout->p_sys->p_display);
 467
 468         p_vout->p_sys->b_cursor_autohidden = 0;
 469         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 470                         ! p_vout->p_sys->b_cursor_autohidden );
 471
 472         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 473     }
 474
 475     /*
 476      * Pointer change
 477      */
 478     if( ! p_vout->p_sys->b_cursor_autohidden &&
 479         ( mdate() - p_vout->p_sys->i_lastmoved > 2000000 ) )
 480     {
 481         /* Hide the mouse automatically */
 482         p_vout->p_sys->b_cursor_autohidden = 1;
 483         SDL_ShowCursor( 0 );
 484     }
 485
 486     if( p_vout->i_changes & VOUT_CURSOR_CHANGE )
 487     {
 488         p_vout->p_sys->b_cursor = ! p_vout->p_sys->b_cursor;
 489
 490         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 491                         ! p_vout->p_sys->b_cursor_autohidden );
 492
 493         p_vout->i_changes &= ~VOUT_CURSOR_CHANGE;
 494     }
 495
 496     return( 0 );
 497 }
 498
 499 /*****************************************************************************
 500  * vout_SetPalette: sets an 8 bpp palette
 501  *****************************************************************************
 502  * This function sets the palette given as an argument. It does not return
 503  * anything, but could later send information on which colors it was unable
 504  * to set.
 505  *****************************************************************************/
 506 static void vout_SetPalette( p_vout_thread_t p_vout, u16 *red, u16 *green,
 507                          u16 *blue, u16 *transp)
 508 {
 509      /* Create a display surface with a grayscale palette */
 510     SDL_Color colors[256];
 511     int i;
 512
 513     /* Fill colors with color information */
 514     for( i = 0; i < 256; i++ )
 515     {
 516         colors[ i ].r = red[ i ] >> 8;
 517         colors[ i ].g = green[ i ] >> 8;
 518         colors[ i ].b = blue[ i ] >> 8;
 519     }
 520
 521     /* Set palette */
 522     if( SDL_SetColors( p_vout->p_sys->p_display, colors, 0, 256 ) == 0 )
 523     {
 524         intf_ErrMsg( "vout error: failed setting palette" );
 525     }
 526
 527 }
 528
 529 /*****************************************************************************
 530  * vout_Display: displays previously rendered output
 531  *****************************************************************************
 532  * This function send the currently rendered image to the display, wait until
 533  * it is displayed and switch the two rendering buffer, preparing next frame.
 534  *****************************************************************************/
 535 static void vout_Display( vout_thread_t *p_vout )
 536 {
 537     SDL_Rect    disp;
 538     if((p_vout->p_sys->p_display != NULL) && !p_vout->p_sys->b_reopen_display)
 539     {
 540         if( p_vout->b_need_render )
 541         {
 542             /* Change display frame */
 543             SDL_Flip( p_vout->p_sys->p_display );
 544         }
 545         else
 546         {
 547             /*
 548              * p_vout->p_rendered_pic->p_y/u/v contains the YUV buffers to
 549              * render
 550              */
 551             /* TODO: support for streams other than 4:2:0 */
 552             /* create the overlay if necessary */
 553             if( p_vout->p_sys->p_overlay == NULL )
 554             {
 555                 p_vout->p_sys->p_overlay = SDL_CreateYUVOverlay(
 556                                              p_vout->p_rendered_pic->i_width,
 557                                              p_vout->p_rendered_pic->i_height,
 558                                              SDL_YV12_OVERLAY,
 559                                              p_vout->p_sys->p_display
 560                                            );
 561                 intf_WarnMsg( 2, "vout: YUV acceleration %s",
 562                               p_vout->p_sys->p_overlay->hw_overlay
 563                             ? "activated" : "unavailable !" );
 564             }
 565
 566             SDL_LockYUVOverlay(p_vout->p_sys->p_overlay);
 567             /* copy the data into video buffers */
 568             /* Y first */
 569             memcpy(p_vout->p_sys->p_overlay->pixels[0],
 570                    p_vout->p_rendered_pic->p_y,
 571                    p_vout->p_sys->p_overlay->h *
 572                    p_vout->p_sys->p_overlay->pitches[0]);
 573             /* then V */
 574             memcpy(p_vout->p_sys->p_overlay->pixels[1],
 575                    p_vout->p_rendered_pic->p_v,
 576                    p_vout->p_sys->p_overlay->h *
 577                    p_vout->p_sys->p_overlay->pitches[1] / 2);
 578             /* and U */
 579             memcpy(p_vout->p_sys->p_overlay->pixels[2],
 580                    p_vout->p_rendered_pic->p_u,
 581                    p_vout->p_sys->p_overlay->h *
 582                    p_vout->p_sys->p_overlay->pitches[2] / 2);
 583
 584             disp.w = (&p_vout->p_buffer[p_vout->i_buffer_index])->i_pic_width;
 585             disp.h = (&p_vout->p_buffer[p_vout->i_buffer_index])->i_pic_height;
 586             disp.x = (p_vout->i_width - disp.w)/2;
 587             disp.y = (p_vout->i_height - disp.h)/2;
 588
 589             SDL_DisplayYUVOverlay( p_vout->p_sys->p_overlay , &disp );
 590             SDL_UnlockYUVOverlay(p_vout->p_sys->p_overlay);
 591         }
 592     }
 593 }
 594
 595 /* following functions are local */
 596
 597 /*****************************************************************************
 598  * SDLOpenDisplay: open and initialize SDL device
 599  *****************************************************************************
 600  * Open and initialize display according to preferences specified in the vout
 601  * thread fields.
 602  *****************************************************************************/
 603 static int SDLOpenDisplay( vout_thread_t *p_vout )
 604 {
 605     SDL_Rect    clipping_rect;
 606     Uint32      flags;
 607     int bpp;
 608     /* Open display
 609      * TODO: Check that we can request for a DOUBLEBUF HWSURFACE display
 610      */
 611
 612     /* init flags and cursor */
 613     flags = SDL_ANYFORMAT | SDL_HWPALETTE;
 614
 615     if( p_vout->b_fullscreen )
 616     {
 617         flags |= SDL_FULLSCREEN;
 618     }
 619     else
 620     {
 621         flags |= SDL_RESIZABLE;
 622     }
 623
 624     if( p_vout->b_need_render )
 625     {
 626         flags |= SDL_HWSURFACE | SDL_DOUBLEBUF;
 627     }
 628     else
 629     {
 630         flags |= SDL_SWSURFACE; /* save video memory */
 631     }
 632
 633     bpp = SDL_VideoModeOK( p_vout->p_sys->i_width,
 634                            p_vout->p_sys->i_height,
 635                            p_vout->i_screen_depth, flags );
 636
 637     if( bpp == 0 )
 638     {
 639         intf_ErrMsg( "vout error: no video mode available" );
 640         return( 1 );
 641     }
 642
 643     p_vout->p_sys->p_display = SDL_SetVideoMode(p_vout->p_sys->i_width,
 644                                                 p_vout->p_sys->i_height,
 645                                                 bpp, flags);
 646
 647     if( p_vout->p_sys->p_display == NULL )
 648     {
 649         intf_ErrMsg( "vout error: cannot set video mode" );
 650         return( 1 );
 651     }
 652
 653     SDL_LockSurface( p_vout->p_sys->p_display );
 654
 655     SDL_WM_SetCaption( VOUT_TITLE " (SDL output)",
 656                        VOUT_TITLE " (SDL output)" );
 657     SDL_EventState(SDL_KEYUP , SDL_IGNORE);                /* ignore keys up */
 658
 659     if( p_vout->b_need_render )
 660     {
 661         p_vout->p_sys->p_sdl_buf[ 0 ] = p_vout->p_sys->p_display->pixels;
 662         SDL_Flip(p_vout->p_sys->p_display);
 663         p_vout->p_sys->p_sdl_buf[ 1 ] = p_vout->p_sys->p_display->pixels;
 664         SDL_Flip(p_vout->p_sys->p_display);
 665
 666         /* Set clipping for text */
 667         clipping_rect.x = 0;
 668         clipping_rect.y = 0;
 669         clipping_rect.w = p_vout->p_sys->p_display->w;
 670         clipping_rect.h = p_vout->p_sys->p_display->h;
 671         SDL_SetClipRect(p_vout->p_sys->p_display, &clipping_rect);
 672
 673         /* Set thread information */
 674         p_vout->i_width =           p_vout->p_sys->p_display->w;
 675         p_vout->i_height =          p_vout->p_sys->p_display->h;
 676         p_vout->i_bytes_per_line =  p_vout->p_sys->p_display->pitch;
 677
 678         p_vout->i_screen_depth =
 679             p_vout->p_sys->p_display->format->BitsPerPixel;
 680         p_vout->i_bytes_per_pixel =
 681             p_vout->p_sys->p_display->format->BytesPerPixel;
 682
 683         p_vout->i_red_mask =        p_vout->p_sys->p_display->format->Rmask;
 684         p_vout->i_green_mask =      p_vout->p_sys->p_display->format->Gmask;
 685         p_vout->i_blue_mask =       p_vout->p_sys->p_display->format->Bmask;
 686
 687         /* FIXME: palette in 8bpp ?? */
 688         /* Set and initialize buffers */
 689         p_vout->pf_setbuffers( p_vout, p_vout->p_sys->p_sdl_buf[ 0 ],
 690                                        p_vout->p_sys->p_sdl_buf[ 1 ] );
 691     }
 692     else
 693     {
 694         p_vout->p_sys->p_sdl_buf[ 0 ] = p_vout->p_sys->p_display->pixels;
 695         p_vout->p_sys->p_sdl_buf[ 1 ] = p_vout->p_sys->p_display->pixels;
 696
 697         /* Set thread information */
 698         p_vout->i_width =           p_vout->p_sys->p_display->w;
 699         p_vout->i_height =          p_vout->p_sys->p_display->h;
 700         p_vout->i_bytes_per_line =  p_vout->p_sys->p_display->pitch;
 701
 702         p_vout->pf_setbuffers( p_vout, p_vout->p_sys->p_sdl_buf[ 0 ],
 703                                        p_vout->p_sys->p_sdl_buf[ 1 ] );
 704     }
 705
 706     p_vout->p_sys->b_reopen_display = 0;
 707
 708     return( 0 );
 709 }
 710
 711 /*****************************************************************************
 712  * SDLCloseDisplay: close and reset SDL device
 713  *****************************************************************************
 714  * This function returns all resources allocated by SDLOpenDisplay and restore
 715  * the original state of the device.
 716  *****************************************************************************/
 717 static void SDLCloseDisplay( vout_thread_t *p_vout )
 718 {
 719     if( p_vout->p_sys->p_display != NULL )
 720     {
 721         if( p_vout->p_sys->p_overlay != NULL )
 722         {
 723             SDL_FreeYUVOverlay( p_vout->p_sys->p_overlay );
 724             p_vout->p_sys->p_overlay = NULL;
 725         }
 726
 727         SDL_UnlockSurface ( p_vout->p_sys->p_display );
 728         SDL_FreeSurface( p_vout->p_sys->p_display );
 729         p_vout->p_sys->p_display = NULL;
 730     }
 731 }
 732