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 1.48 2001/04/28 03:36:25 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 <SDL/SDL.h>
  39
  40 #include "config.h"
  41 #include "common.h"
  42 #include "threads.h"
  43 #include "mtime.h"
  44 #include "tests.h"
  45 #include "modules.h"
  46
  47 #include "video.h"
  48 #include "video_output.h"
  49
  50 #include "intf_msg.h"
  51 #include "interface.h"
  52 /* FIXME: get rid of this */
  53 #include "keystrokes.h"
  54 #include "main.h"
  55 #include "netutils.h"
  56
  57 /*****************************************************************************
  58  * FIXME: this file is ...                                                   *
  59  *                                                                           *
  60  *              XXX   XXX     FIXME     XXX     XXX   XXX   XXX              *
  61  *              XXX   XXX   XXX   XXX   XXX     XXX   XXX   XXX              *
  62  *              XXX   XXX   XXX         XXX       FIXME     XXX              *
  63  *              XXX   XXX   XXX  TODO   XXX        XXX      XXX              *
  64  *              XXX   XXX   XXX   XXX   XXX        XXX                       *
  65  *                FIXME       FIXME       FIXME    XXX      XXX              *
  66  *                                                                           *
  67  *****************************************************************************/
  68
  69 /*****************************************************************************
  70  * vout_sys_t: video output SDL method descriptor
  71  *****************************************************************************
  72  * This structure is part of the video output thread descriptor.
  73  * It describes the SDL specific properties of an output thread.
  74  *****************************************************************************/
  75 typedef struct vout_sys_s
  76 {
  77     int i_width;
  78     int i_height;
  79
  80     SDL_Surface *   p_display;                             /* display device */
  81     SDL_Overlay *   p_overlay;                             /* overlay device */
  82
  83     boolean_t   b_fullscreen;
  84     boolean_t   b_overlay;
  85     boolean_t   b_cursor;
  86     boolean_t   b_reopen_display;
  87
  88     boolean_t   b_cursor_autohidden;
  89     mtime_t     i_lastmoved;
  90
  91     Uint8   *   p_sdl_buf[2];                          /* Buffer information */
  92
  93 } vout_sys_t;
  94
  95 /*****************************************************************************
  96  * Local prototypes.
  97  *****************************************************************************/
  98 static int  vout_Probe     ( probedata_t *p_data );
  99 static int  vout_Create    ( struct vout_thread_s * );
 100 static int  vout_Init      ( struct vout_thread_s * );
 101 static void vout_End       ( struct vout_thread_s * );
 102 static void vout_Destroy   ( struct vout_thread_s * );
 103 static int  vout_Manage    ( struct vout_thread_s * );
 104 static void vout_Display   ( struct vout_thread_s * );
 105 static void vout_SetPalette( p_vout_thread_t p_vout, u16 *red, u16 *green,
 106                              u16 *blue, u16 *transp );
 107
 108 static int  SDLOpenDisplay      ( vout_thread_t *p_vout );
 109 static void SDLCloseDisplay     ( vout_thread_t *p_vout );
 110
 111 /*****************************************************************************
 112  * Functions exported as capabilities. They are declared as static so that
 113  * we don't pollute the namespace too much.
 114  *****************************************************************************/
 115 void _M( vout_getfunctions )( function_list_t * p_function_list )
 116 {
 117     p_function_list->pf_probe = vout_Probe;
 118     p_function_list->functions.vout.pf_create     = vout_Create;
 119     p_function_list->functions.vout.pf_init       = vout_Init;
 120     p_function_list->functions.vout.pf_end        = vout_End;
 121     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 122     p_function_list->functions.vout.pf_manage     = vout_Manage;
 123     p_function_list->functions.vout.pf_display    = vout_Display;
 124     p_function_list->functions.vout.pf_setpalette = vout_SetPalette;
 125 }
 126
 127 /*****************************************************************************
 128  * vout_Probe: probe the video driver and return a score
 129  *****************************************************************************
 130  * This function tries to initialize SDL and returns a score to the
 131  * plugin manager so that it can select the best plugin.
 132  *****************************************************************************/
 133 static int vout_Probe( probedata_t *p_data )
 134 {
 135     if( TestMethod( VOUT_METHOD_VAR, "sdl" ) )
 136     {
 137         return( 999 );
 138     }
 139
 140     return( 100 );
 141 }
 142
 143 /*****************************************************************************
 144  * vout_Create: allocate SDL video thread output method
 145  *****************************************************************************
 146  * This function allocate and initialize a SDL vout method. It uses some of the
 147  * vout properties to choose the correct mode, and change them according to the
 148  * mode actually used.
 149  *****************************************************************************/
 150 static int vout_Create( vout_thread_t *p_vout )
 151 {
 152     /* Allocate structure */
 153     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 154     if( p_vout->p_sys == NULL )
 155     {
 156         intf_ErrMsg( "vout error: can't create p_sys (%s)", strerror(ENOMEM) );
 157         return( 1 );
 158     }
 159
 160     /* Initialize library */
 161     if( SDL_Init( SDL_INIT_VIDEO
 162 #ifndef WIN32
 163     /* Win32 SDL implementation doesn't support SDL_INIT_EVENTTHREAD yet*/
 164                 | SDL_INIT_EVENTTHREAD
 165 #endif
 166                 | SDL_INIT_NOPARACHUTE ) < 0 )
 167     {
 168         intf_ErrMsg( "vout error: can't initialize SDL (%s)", SDL_GetError() );
 169         free( p_vout->p_sys );
 170         return( 1 );
 171     }
 172
 173     p_vout->p_sys->b_cursor = 1; /* TODO should be done with a main_GetInt.. */
 174
 175     p_vout->p_sys->b_cursor_autohidden = 0;
 176     p_vout->p_sys->i_lastmoved = mdate();
 177
 178     p_vout->p_sys->b_fullscreen = main_GetIntVariable( VOUT_FULLSCREEN_VAR,
 179                                 VOUT_FULLSCREEN_DEFAULT );
 180     p_vout->p_sys->b_overlay = main_GetIntVariable( VOUT_OVERLAY_VAR,
 181                                 VOUT_OVERLAY_DEFAULT );
 182     p_vout->p_sys->i_width = main_GetIntVariable( VOUT_WIDTH_VAR,
 183                                 VOUT_WIDTH_DEFAULT );
 184     p_vout->p_sys->i_height = main_GetIntVariable( VOUT_HEIGHT_VAR,
 185                                 VOUT_HEIGHT_DEFAULT );
 186
 187     p_vout->p_sys->p_display = NULL;
 188     p_vout->p_sys->p_overlay = NULL;
 189
 190     if( SDLOpenDisplay(p_vout) )
 191     {
 192         intf_ErrMsg( "vout error: can't set up SDL (%s)", SDL_GetError() );
 193         free( p_vout->p_sys );
 194         return( 1 );
 195     }
 196
 197     /* FIXME: get rid of this ASAP, it's FUCKING UGLY */
 198     { intf_thread_t * p_intf = p_main->p_intf;
 199     intf_AssignKey(p_intf, SDLK_q,      INTF_KEY_QUIT, 0);
 200     intf_AssignKey(p_intf, SDLK_ESCAPE, INTF_KEY_QUIT, 0);
 201     /* intf_AssignKey(p_intf,3,'Q'); */
 202     intf_AssignKey(p_intf, SDLK_0,      INTF_KEY_SET_CHANNEL,0);
 203     intf_AssignKey(p_intf, SDLK_1,      INTF_KEY_SET_CHANNEL,1);
 204     intf_AssignKey(p_intf, SDLK_2,      INTF_KEY_SET_CHANNEL,2);
 205     intf_AssignKey(p_intf, SDLK_3,      INTF_KEY_SET_CHANNEL,3);
 206     intf_AssignKey(p_intf, SDLK_4,      INTF_KEY_SET_CHANNEL,4);
 207     intf_AssignKey(p_intf, SDLK_5,      INTF_KEY_SET_CHANNEL,5);
 208     intf_AssignKey(p_intf, SDLK_6,      INTF_KEY_SET_CHANNEL,6);
 209     intf_AssignKey(p_intf, SDLK_7,      INTF_KEY_SET_CHANNEL,7);
 210     intf_AssignKey(p_intf, SDLK_8,      INTF_KEY_SET_CHANNEL,8);
 211     intf_AssignKey(p_intf, SDLK_9,      INTF_KEY_SET_CHANNEL,9);
 212     intf_AssignKey(p_intf, SDLK_PLUS,   INTF_KEY_INC_VOLUME, 0);
 213     intf_AssignKey(p_intf, SDLK_MINUS,  INTF_KEY_DEC_VOLUME, 0);
 214     intf_AssignKey(p_intf, SDLK_m,      INTF_KEY_TOGGLE_VOLUME, 0);
 215     /* intf_AssignKey(p_intf,'M','M'); */
 216     intf_AssignKey(p_intf, SDLK_g,      INTF_KEY_DEC_GAMMA, 0);
 217     /* intf_AssignKey(p_intf,'G','G'); */
 218     intf_AssignKey(p_intf, SDLK_c,      INTF_KEY_TOGGLE_GRAYSCALE, 0);
 219     intf_AssignKey(p_intf, SDLK_SPACE,  INTF_KEY_TOGGLE_INTERFACE, 0);
 220     intf_AssignKey(p_intf, SDLK_i,      INTF_KEY_TOGGLE_INFO, 0);
 221     intf_AssignKey(p_intf, SDLK_s,      INTF_KEY_TOGGLE_SCALING, 0);
 222     intf_AssignKey(p_intf, SDLK_d,      INTF_KEY_DUMP_STREAM, 0); }
 223
 224     return( 0 );
 225 }
 226
 227 /*****************************************************************************
 228  * vout_Init: initialize SDL video thread output method
 229  *****************************************************************************
 230  * This function initialize the SDL display device.
 231  *****************************************************************************/
 232 static int vout_Init( vout_thread_t *p_vout )
 233 {
 234     /* This hack is hugly, but hey, you are, too. */
 235
 236     SDL_Overlay *   p_overlay;
 237
 238     p_overlay = SDL_CreateYUVOverlay(
 239            main_GetIntVariable( VOUT_WIDTH_VAR,VOUT_WIDTH_DEFAULT ),
 240            main_GetIntVariable( VOUT_HEIGHT_VAR,VOUT_HEIGHT_DEFAULT ),
 241                                       SDL_YV12_OVERLAY,
 242                                       p_vout->p_sys->p_display );
 243     intf_Msg( "vout: YUV acceleration %s",
 244               p_overlay->hw_overlay ? "activated" : "unavailable !" );
 245     p_vout->b_need_render = !p_overlay->hw_overlay;
 246
 247     SDL_FreeYUVOverlay( p_overlay );
 248
 249     return( 0 );
 250 }
 251
 252 /*****************************************************************************
 253  * vout_End: terminate Sys video thread output method
 254  *****************************************************************************
 255  * Terminate an output method created by vout_SDLCreate
 256  *****************************************************************************/
 257 static void vout_End( vout_thread_t *p_vout )
 258 {
 259     SDLCloseDisplay( p_vout );
 260     SDL_Quit();
 261 }
 262
 263 /*****************************************************************************
 264  * vout_Destroy: destroy Sys video thread output method
 265  *****************************************************************************
 266  * Terminate an output method created by vout_SDLCreate
 267  *****************************************************************************/
 268 static void vout_Destroy( vout_thread_t *p_vout )
 269 {
 270     free( p_vout->p_sys );
 271 }
 272
 273 /*****************************************************************************
 274  * vout_Manage: handle Sys events
 275  *****************************************************************************
 276  * This function should be called regularly by video output thread. It returns
 277  * a non null value if an error occured.
 278  *****************************************************************************/
 279 static int vout_Manage( vout_thread_t *p_vout )
 280 {
 281     SDL_Event event;                                            /* SDL event */
 282     char *    p_key;
 283
 284     /* Process events */
 285     while( SDL_PollEvent(&event) )
 286     {
 287         switch( event.type )
 288         {
 289         case SDL_VIDEORESIZE:                          /* Resizing of window */
 290             p_vout->i_width = event.resize.w;
 291             p_vout->i_height = event.resize.h;
 292             p_vout->i_changes |= VOUT_SIZE_CHANGE;
 293             break;
 294
 295         case SDL_MOUSEMOTION:
 296             if( p_vout->p_sys->b_cursor &&
 297                 (abs(event.motion.xrel) > 2 || abs(event.motion.yrel) > 2) )
 298             {
 299                 if( p_vout->p_sys->b_cursor_autohidden )
 300                 {
 301                     p_vout->p_sys->b_cursor_autohidden = 0;
 302                     SDL_ShowCursor( 1 );
 303                 }
 304                 else
 305                 {
 306                     p_vout->p_sys->i_lastmoved = mdate();
 307                 }
 308             }
 309             break;
 310
 311         case SDL_MOUSEBUTTONUP:
 312             switch( event.button.button )
 313             {
 314             case SDL_BUTTON_RIGHT:
 315                 p_main->p_intf->b_menu_change = 1;
 316                 break;
 317             }
 318             break;
 319
 320         case SDL_MOUSEBUTTONDOWN:
 321             switch( event.button.button )
 322             {
 323             case SDL_BUTTON_MIDDLE:
 324                 p_vout->i_changes |= VOUT_CURSOR_CHANGE;
 325                 break;
 326             }
 327             break;
 328
 329         case SDL_QUIT:
 330             intf_ProcessKey( p_main->p_intf, SDLK_q );
 331             break;
 332
 333         case SDL_KEYDOWN:                             /* if a key is pressed */
 334
 335             switch( event.key.keysym.sym )
 336             {
 337             case SDLK_f:                             /* switch to fullscreen */
 338                 p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 339                 break;
 340
 341             case SDLK_y:                               /* switch to hard YUV */
 342                 p_vout->i_changes |= VOUT_YUV_CHANGE;
 343                 break;
 344
 345             case SDLK_c:                                 /* toggle grayscale */
 346                 p_vout->b_grayscale = ! p_vout->b_grayscale;
 347                 p_vout->i_changes |= VOUT_GRAYSCALE_CHANGE;
 348                 break;
 349
 350             case SDLK_i:                                      /* toggle info */
 351                 p_vout->b_info = ! p_vout->b_info;
 352                 p_vout->i_changes |= VOUT_INFO_CHANGE;
 353                 break;
 354
 355             case SDLK_s:                                   /* toggle scaling */
 356                 p_vout->b_scale = ! p_vout->b_scale;
 357                 p_vout->i_changes |= VOUT_SCALE_CHANGE;
 358                 break;
 359
 360             case SDLK_SPACE:                             /* toggle interface */
 361                 p_vout->b_interface = ! p_vout->b_interface;
 362                 p_vout->i_changes |= VOUT_INTF_CHANGE;
 363                 break;
 364
 365             case SDLK_F10:
 366                 network_ChannelJoin( 0 );
 367                 break;
 368             case SDLK_F1:
 369                 network_ChannelJoin( 1 );
 370                 break;
 371             case SDLK_F2:
 372                 network_ChannelJoin( 2 );
 373                 break;
 374             case SDLK_F3:
 375                 network_ChannelJoin( 3 );
 376                 break;
 377             case SDLK_F4:
 378                 network_ChannelJoin( 4 );
 379                 break;
 380             case SDLK_F5:
 381                 network_ChannelJoin( 5 );
 382                 break;
 383             case SDLK_F6:
 384                 network_ChannelJoin( 6 );
 385                 break;
 386             case SDLK_F7:
 387                 network_ChannelJoin( 7 );
 388                 break;
 389             case SDLK_F8:
 390                 network_ChannelJoin( 8 );
 391                 break;
 392             case SDLK_F9:
 393                 network_ChannelJoin( 9 );
 394                 break;
 395
 396             case SDLK_MENU:
 397                 p_main->p_intf->b_menu_change = 1;
 398                 break;
 399
 400             default:
 401                 p_key = SDL_GetKeyName( event.key.keysym.sym ) ;
 402                 if( intf_ProcessKey( p_main->p_intf,
 403                                      (char )event.key.keysym.sym ) )
 404                 {
 405                    intf_DbgMsg( "unhandled key '%c' (%i)",
 406                                 (char)event.key.keysym.sym,
 407                                 event.key.keysym.sym );
 408                 }
 409                 break;
 410             }
 411             break;
 412
 413         default:
 414             break;
 415         }
 416     }
 417
 418     /*
 419      * Size Change
 420      */
 421     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 422     {
 423         p_vout->p_sys->i_width = p_vout->i_width;
 424         p_vout->p_sys->i_height = p_vout->i_height;
 425
 426         /* Need to reopen display */
 427         SDLCloseDisplay( p_vout );
 428         if( SDLOpenDisplay( p_vout ) )
 429         {
 430           intf_ErrMsg( "vout error: can't reopen display after resize" );
 431           return( 1 );
 432         }
 433         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 434     }
 435
 436     /*
 437      * YUV Change
 438      */
 439     if( p_vout->i_changes & VOUT_YUV_CHANGE )
 440     {
 441         p_vout->b_need_render = ! p_vout->b_need_render;
 442
 443         /* Need to reopen display */
 444         SDLCloseDisplay( p_vout );
 445         if( SDLOpenDisplay( p_vout ) )
 446         {
 447           intf_ErrMsg( "error: can't reopen display after YUV change" );
 448           return( 1 );
 449         }
 450         p_vout->i_changes &= ~VOUT_YUV_CHANGE;
 451     }
 452
 453     /*
 454      * Fullscreen change
 455      */
 456     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 457     {
 458         p_vout->p_sys->b_fullscreen = ! p_vout->p_sys->b_fullscreen;
 459
 460         SDL_WM_ToggleFullScreen(p_vout->p_sys->p_display);
 461
 462         p_vout->p_sys->b_cursor_autohidden = 0;
 463         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 464                         ! p_vout->p_sys->b_cursor_autohidden );
 465
 466         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 467     }
 468
 469     /*
 470      * Pointer change
 471      */
 472     if( ! p_vout->p_sys->b_cursor_autohidden &&
 473         ( mdate() - p_vout->p_sys->i_lastmoved > 2000000 ) )
 474     {
 475         /* Hide the mouse automatically */
 476         p_vout->p_sys->b_cursor_autohidden = 1;
 477         SDL_ShowCursor( 0 );
 478     }
 479
 480     if( p_vout->i_changes & VOUT_CURSOR_CHANGE )
 481     {
 482         p_vout->p_sys->b_cursor = ! p_vout->p_sys->b_cursor;
 483
 484         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 485                         ! p_vout->p_sys->b_cursor_autohidden );
 486
 487         p_vout->i_changes &= ~VOUT_CURSOR_CHANGE;
 488     }
 489
 490     return( 0 );
 491 }
 492
 493 /*****************************************************************************
 494  * vout_SetPalette: sets an 8 bpp palette
 495  *****************************************************************************
 496  * This function sets the palette given as an argument. It does not return
 497  * anything, but could later send information on which colors it was unable
 498  * to set.
 499  *****************************************************************************/
 500 static void vout_SetPalette( p_vout_thread_t p_vout, u16 *red, u16 *green,
 501                          u16 *blue, u16 *transp)
 502 {
 503      /* Create a display surface with a grayscale palette */
 504     SDL_Color colors[256];
 505     int i;
 506
 507     /* Fill colors with color information */
 508     for( i = 0; i < 256; i++ )
 509     {
 510         colors[ i ].r = red[ i ] >> 8;
 511         colors[ i ].g = green[ i ] >> 8;
 512         colors[ i ].b = blue[ i ] >> 8;
 513     }
 514
 515     /* Set palette */
 516     if( SDL_SetColors( p_vout->p_sys->p_display, colors, 0, 256 ) == 0 )
 517     {
 518         intf_ErrMsg( "vout error: failed setting palette" );
 519     }
 520
 521 }
 522
 523 /*****************************************************************************
 524  * vout_Display: displays previously rendered output
 525  *****************************************************************************
 526  * This function send the currently rendered image to the display, wait until
 527  * it is displayed and switch the two rendering buffer, preparing next frame.
 528  *****************************************************************************/
 529 static void vout_Display( vout_thread_t *p_vout )
 530 {
 531     SDL_Rect    disp;
 532     if((p_vout->p_sys->p_display != NULL) && !p_vout->p_sys->b_reopen_display)
 533     {
 534         if( p_vout->b_need_render )
 535         {
 536             /* Change display frame */
 537             SDL_Flip( p_vout->p_sys->p_display );
 538         }
 539         else
 540         {
 541             /*
 542              * p_vout->p_rendered_pic->p_y/u/v contains the YUV buffers to
 543              * render
 544              */
 545             /* TODO: support for streams other than 4:2:0 */
 546             /* create the overlay if necessary */
 547             if( p_vout->p_sys->p_overlay == NULL )
 548             {
 549                 p_vout->p_sys->p_overlay = SDL_CreateYUVOverlay(
 550                                              p_vout->p_rendered_pic->i_width,
 551                                              p_vout->p_rendered_pic->i_height,
 552                                              SDL_YV12_OVERLAY,
 553                                              p_vout->p_sys->p_display
 554                                            );
 555                 intf_Msg("vout: YUV acceleration %s",
 556                             p_vout->p_sys->p_overlay->hw_overlay
 557                             ? "activated" : "unavailable !" );
 558             }
 559
 560             SDL_LockYUVOverlay(p_vout->p_sys->p_overlay);
 561             /* copy the data into video buffers */
 562             /* Y first */
 563             memcpy(p_vout->p_sys->p_overlay->pixels[0],
 564                    p_vout->p_rendered_pic->p_y,
 565                    p_vout->p_sys->p_overlay->h *
 566                    p_vout->p_sys->p_overlay->pitches[0]);
 567             /* then V */
 568             memcpy(p_vout->p_sys->p_overlay->pixels[1],
 569                    p_vout->p_rendered_pic->p_v,
 570                    p_vout->p_sys->p_overlay->h *
 571                    p_vout->p_sys->p_overlay->pitches[1] / 2);
 572             /* and U */
 573             memcpy(p_vout->p_sys->p_overlay->pixels[2],
 574                    p_vout->p_rendered_pic->p_u,
 575                    p_vout->p_sys->p_overlay->h *
 576                    p_vout->p_sys->p_overlay->pitches[2] / 2);
 577
 578             disp.w = (&p_vout->p_buffer[p_vout->i_buffer_index])->i_pic_width;
 579             disp.h = (&p_vout->p_buffer[p_vout->i_buffer_index])->i_pic_height;
 580             disp.x = (p_vout->i_width - disp.w)/2;
 581             disp.y = (p_vout->i_height - disp.h)/2;
 582
 583             SDL_DisplayYUVOverlay( p_vout->p_sys->p_overlay , &disp );
 584             SDL_UnlockYUVOverlay(p_vout->p_sys->p_overlay);
 585         }
 586     }
 587 }
 588
 589 /* following functions are local */
 590
 591 /*****************************************************************************
 592  * SDLOpenDisplay: open and initialize SDL device
 593  *****************************************************************************
 594  * Open and initialize display according to preferences specified in the vout
 595  * thread fields.
 596  *****************************************************************************/
 597 static int SDLOpenDisplay( vout_thread_t *p_vout )
 598 {
 599     SDL_Rect    clipping_rect;
 600     Uint32      flags;
 601     int bpp;
 602     /* Open display
 603      * TODO: Check that we can request for a DOUBLEBUF HWSURFACE display
 604      */
 605
 606     /* init flags and cursor */
 607     flags = SDL_ANYFORMAT | SDL_HWPALETTE;
 608
 609     if( p_vout->p_sys->b_fullscreen )
 610     {
 611         flags |= SDL_FULLSCREEN;
 612     }
 613     else
 614     {
 615         flags |= SDL_RESIZABLE;
 616     }
 617
 618     if( p_vout->b_need_render )
 619     {
 620         flags |= SDL_HWSURFACE | SDL_DOUBLEBUF;
 621     }
 622     else
 623     {
 624         flags |= SDL_SWSURFACE; /* save video memory */
 625     }
 626
 627     bpp = SDL_VideoModeOK( p_vout->p_sys->i_width,
 628                            p_vout->p_sys->i_height,
 629                            p_vout->i_screen_depth, flags );
 630
 631     if( bpp == 0 )
 632     {
 633         intf_ErrMsg( "vout error: no video mode available" );
 634         return( 1 );
 635     }
 636
 637     p_vout->p_sys->p_display = SDL_SetVideoMode(p_vout->p_sys->i_width,
 638                                                 p_vout->p_sys->i_height,
 639                                                 bpp, flags);
 640
 641     if( p_vout->p_sys->p_display == NULL )
 642     {
 643         intf_ErrMsg( "vout error: cannot set video mode" );
 644         return( 1 );
 645     }
 646
 647     SDL_LockSurface( p_vout->p_sys->p_display );
 648
 649     SDL_WM_SetCaption( VOUT_TITLE " (SDL output)",
 650                        VOUT_TITLE " (SDL output)" );
 651     SDL_EventState(SDL_KEYUP , SDL_IGNORE);                /* ignore keys up */
 652
 653     if( p_vout->b_need_render )
 654     {
 655         p_vout->p_sys->p_sdl_buf[ 0 ] = p_vout->p_sys->p_display->pixels;
 656         SDL_Flip(p_vout->p_sys->p_display);
 657         p_vout->p_sys->p_sdl_buf[ 1 ] = p_vout->p_sys->p_display->pixels;
 658         SDL_Flip(p_vout->p_sys->p_display);
 659
 660         /* Set clipping for text */
 661         clipping_rect.x = 0;
 662         clipping_rect.y = 0;
 663         clipping_rect.w = p_vout->p_sys->p_display->w;
 664         clipping_rect.h = p_vout->p_sys->p_display->h;
 665         SDL_SetClipRect(p_vout->p_sys->p_display, &clipping_rect);
 666
 667         /* Set thread information */
 668         p_vout->i_width =           p_vout->p_sys->p_display->w;
 669         p_vout->i_height =          p_vout->p_sys->p_display->h;
 670         p_vout->i_bytes_per_line =  p_vout->p_sys->p_display->pitch;
 671
 672         p_vout->i_screen_depth =
 673             p_vout->p_sys->p_display->format->BitsPerPixel;
 674         p_vout->i_bytes_per_pixel =
 675             p_vout->p_sys->p_display->format->BytesPerPixel;
 676
 677         p_vout->i_red_mask =        p_vout->p_sys->p_display->format->Rmask;
 678         p_vout->i_green_mask =      p_vout->p_sys->p_display->format->Gmask;
 679         p_vout->i_blue_mask =       p_vout->p_sys->p_display->format->Bmask;
 680
 681         /* FIXME: palette in 8bpp ?? */
 682         /* Set and initialize buffers */
 683         vout_SetBuffers( p_vout, p_vout->p_sys->p_sdl_buf[ 0 ],
 684                                  p_vout->p_sys->p_sdl_buf[ 1 ] );
 685     }
 686     else
 687     {
 688         p_vout->p_sys->p_sdl_buf[ 0 ] = p_vout->p_sys->p_display->pixels;
 689         p_vout->p_sys->p_sdl_buf[ 1 ] = p_vout->p_sys->p_display->pixels;
 690
 691         /* Set thread information */
 692         p_vout->i_width =           p_vout->p_sys->p_display->w;
 693         p_vout->i_height =          p_vout->p_sys->p_display->h;
 694         p_vout->i_bytes_per_line =  p_vout->p_sys->p_display->pitch;
 695
 696         vout_SetBuffers( p_vout, p_vout->p_sys->p_sdl_buf[ 0 ],
 697                                  p_vout->p_sys->p_sdl_buf[ 1 ] );
 698     }
 699
 700     p_vout->p_sys->b_reopen_display = 0;
 701
 702     return( 0 );
 703 }
 704
 705 /*****************************************************************************
 706  * SDLCloseDisplay: close and reset SDL device
 707  *****************************************************************************
 708  * This function returns all resources allocated by SDLOpenDisplay and restore
 709  * the original state of the device.
 710  *****************************************************************************/
 711 static void SDLCloseDisplay( vout_thread_t *p_vout )
 712 {
 713     if( p_vout->p_sys->p_display != NULL )
 714     {
 715         if( p_vout->p_sys->p_overlay != NULL )
 716         {
 717             SDL_FreeYUVOverlay( p_vout->p_sys->p_overlay );
 718             p_vout->p_sys->p_overlay = NULL;
 719         }
 720
 721         SDL_UnlockSurface ( p_vout->p_sys->p_display );
 722         SDL_FreeSurface( p_vout->p_sys->p_display );
 723         p_vout->p_sys->p_display = NULL;
 724     }
 725 }
 726