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 1.49 2001/05/06 18:32:30 stef 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_overlay;
  84     boolean_t   b_cursor;
  85     boolean_t   b_reopen_display;
  86
  87     boolean_t   b_cursor_autohidden;
  88     mtime_t     i_lastmoved;
  89
  90     Uint8   *   p_sdl_buf[2];                          /* Buffer information */
  91
  92 } vout_sys_t;
  93
  94 /*****************************************************************************
  95  * Local prototypes.
  96  *****************************************************************************/
  97 static int  vout_Probe     ( probedata_t *p_data );
  98 static int  vout_Create    ( struct vout_thread_s * );
  99 static int  vout_Init      ( struct vout_thread_s * );
 100 static void vout_End       ( struct vout_thread_s * );
 101 static void vout_Destroy   ( struct vout_thread_s * );
 102 static int  vout_Manage    ( struct vout_thread_s * );
 103 static void vout_Display   ( struct vout_thread_s * );
 104 static void vout_SetPalette( p_vout_thread_t p_vout, u16 *red, u16 *green,
 105                              u16 *blue, u16 *transp );
 106
 107 static int  SDLOpenDisplay      ( vout_thread_t *p_vout );
 108 static void SDLCloseDisplay     ( vout_thread_t *p_vout );
 109
 110 /*****************************************************************************
 111  * Functions exported as capabilities. They are declared as static so that
 112  * we don't pollute the namespace too much.
 113  *****************************************************************************/
 114 void _M( vout_getfunctions )( function_list_t * p_function_list )
 115 {
 116     p_function_list->pf_probe = vout_Probe;
 117     p_function_list->functions.vout.pf_create     = vout_Create;
 118     p_function_list->functions.vout.pf_init       = vout_Init;
 119     p_function_list->functions.vout.pf_end        = vout_End;
 120     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 121     p_function_list->functions.vout.pf_manage     = vout_Manage;
 122     p_function_list->functions.vout.pf_display    = vout_Display;
 123     p_function_list->functions.vout.pf_setpalette = vout_SetPalette;
 124 }
 125
 126 /*****************************************************************************
 127  * vout_Probe: probe the video driver and return a score
 128  *****************************************************************************
 129  * This function tries to initialize SDL and returns a score to the
 130  * plugin manager so that it can select the best plugin.
 131  *****************************************************************************/
 132 static int vout_Probe( probedata_t *p_data )
 133 {
 134     if( TestMethod( VOUT_METHOD_VAR, "sdl" ) )
 135     {
 136         return( 999 );
 137     }
 138
 139     return( 100 );
 140 }
 141
 142 /*****************************************************************************
 143  * vout_Create: allocate SDL video thread output method
 144  *****************************************************************************
 145  * This function allocate and initialize a SDL vout method. It uses some of the
 146  * vout properties to choose the correct mode, and change them according to the
 147  * mode actually used.
 148  *****************************************************************************/
 149 static int vout_Create( vout_thread_t *p_vout )
 150 {
 151     /* Allocate structure */
 152     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 153     if( p_vout->p_sys == NULL )
 154     {
 155         intf_ErrMsg( "vout error: can't create p_sys (%s)", strerror(ENOMEM) );
 156         return( 1 );
 157     }
 158
 159     /* Initialize library */
 160     if( SDL_Init( SDL_INIT_VIDEO
 161 #ifndef WIN32
 162     /* Win32 SDL implementation doesn't support SDL_INIT_EVENTTHREAD yet*/
 163                 | SDL_INIT_EVENTTHREAD
 164 #endif
 165                 | SDL_INIT_NOPARACHUTE ) < 0 )
 166     {
 167         intf_ErrMsg( "vout error: can't initialize SDL (%s)", SDL_GetError() );
 168         free( p_vout->p_sys );
 169         return( 1 );
 170     }
 171
 172     p_vout->p_sys->b_cursor = 1; /* TODO should be done with a main_GetInt.. */
 173
 174     p_vout->p_sys->b_cursor_autohidden = 0;
 175     p_vout->p_sys->i_lastmoved = mdate();
 176
 177     p_vout->b_fullscreen = main_GetIntVariable( VOUT_FULLSCREEN_VAR,
 178                                 VOUT_FULLSCREEN_DEFAULT );
 179     p_vout->p_sys->b_overlay = main_GetIntVariable( VOUT_OVERLAY_VAR,
 180                                 VOUT_OVERLAY_DEFAULT );
 181     p_vout->p_sys->i_width = main_GetIntVariable( VOUT_WIDTH_VAR,
 182                                 VOUT_WIDTH_DEFAULT );
 183     p_vout->p_sys->i_height = main_GetIntVariable( VOUT_HEIGHT_VAR,
 184                                 VOUT_HEIGHT_DEFAULT );
 185
 186     p_vout->p_sys->p_display = NULL;
 187     p_vout->p_sys->p_overlay = NULL;
 188
 189     if( SDLOpenDisplay(p_vout) )
 190     {
 191         intf_ErrMsg( "vout error: can't set up SDL (%s)", SDL_GetError() );
 192         free( p_vout->p_sys );
 193         return( 1 );
 194     }
 195
 196     /* FIXME: get rid of this ASAP, it's FUCKING UGLY */
 197     { intf_thread_t * p_intf = p_main->p_intf;
 198     intf_AssignKey(p_intf, SDLK_q,      INTF_KEY_QUIT, 0);
 199     intf_AssignKey(p_intf, SDLK_ESCAPE, INTF_KEY_QUIT, 0);
 200     /* intf_AssignKey(p_intf,3,'Q'); */
 201     intf_AssignKey(p_intf, SDLK_0,      INTF_KEY_SET_CHANNEL,0);
 202     intf_AssignKey(p_intf, SDLK_1,      INTF_KEY_SET_CHANNEL,1);
 203     intf_AssignKey(p_intf, SDLK_2,      INTF_KEY_SET_CHANNEL,2);
 204     intf_AssignKey(p_intf, SDLK_3,      INTF_KEY_SET_CHANNEL,3);
 205     intf_AssignKey(p_intf, SDLK_4,      INTF_KEY_SET_CHANNEL,4);
 206     intf_AssignKey(p_intf, SDLK_5,      INTF_KEY_SET_CHANNEL,5);
 207     intf_AssignKey(p_intf, SDLK_6,      INTF_KEY_SET_CHANNEL,6);
 208     intf_AssignKey(p_intf, SDLK_7,      INTF_KEY_SET_CHANNEL,7);
 209     intf_AssignKey(p_intf, SDLK_8,      INTF_KEY_SET_CHANNEL,8);
 210     intf_AssignKey(p_intf, SDLK_9,      INTF_KEY_SET_CHANNEL,9);
 211     intf_AssignKey(p_intf, SDLK_PLUS,   INTF_KEY_INC_VOLUME, 0);
 212     intf_AssignKey(p_intf, SDLK_MINUS,  INTF_KEY_DEC_VOLUME, 0);
 213     intf_AssignKey(p_intf, SDLK_m,      INTF_KEY_TOGGLE_VOLUME, 0);
 214     /* intf_AssignKey(p_intf,'M','M'); */
 215     intf_AssignKey(p_intf, SDLK_g,      INTF_KEY_DEC_GAMMA, 0);
 216     /* intf_AssignKey(p_intf,'G','G'); */
 217     intf_AssignKey(p_intf, SDLK_c,      INTF_KEY_TOGGLE_GRAYSCALE, 0);
 218     intf_AssignKey(p_intf, SDLK_SPACE,  INTF_KEY_TOGGLE_INTERFACE, 0);
 219     intf_AssignKey(p_intf, SDLK_i,      INTF_KEY_TOGGLE_INFO, 0);
 220     intf_AssignKey(p_intf, SDLK_s,      INTF_KEY_TOGGLE_SCALING, 0);
 221     intf_AssignKey(p_intf, SDLK_d,      INTF_KEY_DUMP_STREAM, 0); }
 222
 223     return( 0 );
 224 }
 225
 226 /*****************************************************************************
 227  * vout_Init: initialize SDL video thread output method
 228  *****************************************************************************
 229  * This function initialize the SDL display device.
 230  *****************************************************************************/
 231 static int vout_Init( vout_thread_t *p_vout )
 232 {
 233     /* This hack is hugly, but hey, you are, too. */
 234
 235     SDL_Overlay *   p_overlay;
 236
 237     p_overlay = SDL_CreateYUVOverlay(
 238            main_GetIntVariable( VOUT_WIDTH_VAR,VOUT_WIDTH_DEFAULT ),
 239            main_GetIntVariable( VOUT_HEIGHT_VAR,VOUT_HEIGHT_DEFAULT ),
 240                                       SDL_YV12_OVERLAY,
 241                                       p_vout->p_sys->p_display );
 242     intf_Msg( "vout: YUV acceleration %s",
 243               p_overlay->hw_overlay ? "activated" : "unavailable !" );
 244     p_vout->b_need_render = !p_overlay->hw_overlay;
 245
 246     SDL_FreeYUVOverlay( p_overlay );
 247
 248     return( 0 );
 249 }
 250
 251 /*****************************************************************************
 252  * vout_End: terminate Sys video thread output method
 253  *****************************************************************************
 254  * Terminate an output method created by vout_SDLCreate
 255  *****************************************************************************/
 256 static void vout_End( vout_thread_t *p_vout )
 257 {
 258     SDLCloseDisplay( p_vout );
 259     SDL_Quit();
 260 }
 261
 262 /*****************************************************************************
 263  * vout_Destroy: destroy Sys video thread output method
 264  *****************************************************************************
 265  * Terminate an output method created by vout_SDLCreate
 266  *****************************************************************************/
 267 static void vout_Destroy( vout_thread_t *p_vout )
 268 {
 269     free( p_vout->p_sys );
 270 }
 271
 272 /*****************************************************************************
 273  * vout_Manage: handle Sys events
 274  *****************************************************************************
 275  * This function should be called regularly by video output thread. It returns
 276  * a non null value if an error occured.
 277  *****************************************************************************/
 278 static int vout_Manage( vout_thread_t *p_vout )
 279 {
 280     SDL_Event event;                                            /* SDL event */
 281     char *    p_key;
 282
 283     /* Process events */
 284     while( SDL_PollEvent(&event) )
 285     {
 286         switch( event.type )
 287         {
 288         case SDL_VIDEORESIZE:                          /* Resizing of window */
 289             p_vout->i_width = event.resize.w;
 290             p_vout->i_height = event.resize.h;
 291             p_vout->i_changes |= VOUT_SIZE_CHANGE;
 292             break;
 293
 294         case SDL_MOUSEMOTION:
 295             if( p_vout->p_sys->b_cursor &&
 296                 (abs(event.motion.xrel) > 2 || abs(event.motion.yrel) > 2) )
 297             {
 298                 if( p_vout->p_sys->b_cursor_autohidden )
 299                 {
 300                     p_vout->p_sys->b_cursor_autohidden = 0;
 301                     SDL_ShowCursor( 1 );
 302                 }
 303                 else
 304                 {
 305                     p_vout->p_sys->i_lastmoved = mdate();
 306                 }
 307             }
 308             break;
 309
 310         case SDL_MOUSEBUTTONUP:
 311             switch( event.button.button )
 312             {
 313             case SDL_BUTTON_RIGHT:
 314                 p_main->p_intf->b_menu_change = 1;
 315                 break;
 316             }
 317             break;
 318
 319         case SDL_MOUSEBUTTONDOWN:
 320             switch( event.button.button )
 321             {
 322             case SDL_BUTTON_MIDDLE:
 323                 p_vout->i_changes |= VOUT_CURSOR_CHANGE;
 324                 break;
 325             }
 326             break;
 327
 328         case SDL_QUIT:
 329             intf_ProcessKey( p_main->p_intf, SDLK_q );
 330             break;
 331
 332         case SDL_KEYDOWN:                             /* if a key is pressed */
 333
 334             switch( event.key.keysym.sym )
 335             {
 336             case SDLK_f:                             /* switch to fullscreen */
 337                 p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 338                 break;
 339
 340             case SDLK_y:                               /* switch to hard YUV */
 341                 p_vout->i_changes |= VOUT_YUV_CHANGE;
 342                 break;
 343
 344             case SDLK_c:                                 /* toggle grayscale */
 345                 p_vout->b_grayscale = ! p_vout->b_grayscale;
 346                 p_vout->i_changes |= VOUT_GRAYSCALE_CHANGE;
 347                 break;
 348
 349             case SDLK_i:                                      /* toggle info */
 350                 p_vout->b_info = ! p_vout->b_info;
 351                 p_vout->i_changes |= VOUT_INFO_CHANGE;
 352                 break;
 353
 354             case SDLK_s:                                   /* toggle scaling */
 355                 p_vout->b_scale = ! p_vout->b_scale;
 356                 p_vout->i_changes |= VOUT_SCALE_CHANGE;
 357                 break;
 358
 359             case SDLK_SPACE:                             /* toggle interface */
 360                 p_vout->b_interface = ! p_vout->b_interface;
 361                 p_vout->i_changes |= VOUT_INTF_CHANGE;
 362                 break;
 363
 364             case SDLK_F10:
 365                 network_ChannelJoin( 0 );
 366                 break;
 367             case SDLK_F1:
 368                 network_ChannelJoin( 1 );
 369                 break;
 370             case SDLK_F2:
 371                 network_ChannelJoin( 2 );
 372                 break;
 373             case SDLK_F3:
 374                 network_ChannelJoin( 3 );
 375                 break;
 376             case SDLK_F4:
 377                 network_ChannelJoin( 4 );
 378                 break;
 379             case SDLK_F5:
 380                 network_ChannelJoin( 5 );
 381                 break;
 382             case SDLK_F6:
 383                 network_ChannelJoin( 6 );
 384                 break;
 385             case SDLK_F7:
 386                 network_ChannelJoin( 7 );
 387                 break;
 388             case SDLK_F8:
 389                 network_ChannelJoin( 8 );
 390                 break;
 391             case SDLK_F9:
 392                 network_ChannelJoin( 9 );
 393                 break;
 394
 395             case SDLK_MENU:
 396                 p_main->p_intf->b_menu_change = 1;
 397                 break;
 398
 399             default:
 400                 p_key = SDL_GetKeyName( event.key.keysym.sym ) ;
 401                 if( intf_ProcessKey( p_main->p_intf,
 402                                      (char )event.key.keysym.sym ) )
 403                 {
 404                    intf_DbgMsg( "unhandled key '%c' (%i)",
 405                                 (char)event.key.keysym.sym,
 406                                 event.key.keysym.sym );
 407                 }
 408                 break;
 409             }
 410             break;
 411
 412         default:
 413             break;
 414         }
 415     }
 416
 417     /*
 418      * Size Change
 419      */
 420     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 421     {
 422         p_vout->p_sys->i_width = p_vout->i_width;
 423         p_vout->p_sys->i_height = p_vout->i_height;
 424
 425         /* Need to reopen display */
 426         SDLCloseDisplay( p_vout );
 427         if( SDLOpenDisplay( p_vout ) )
 428         {
 429           intf_ErrMsg( "vout error: can't reopen display after resize" );
 430           return( 1 );
 431         }
 432         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 433     }
 434
 435     /*
 436      * YUV Change
 437      */
 438     if( p_vout->i_changes & VOUT_YUV_CHANGE )
 439     {
 440         p_vout->b_need_render = ! p_vout->b_need_render;
 441
 442         /* Need to reopen display */
 443         SDLCloseDisplay( p_vout );
 444         if( SDLOpenDisplay( p_vout ) )
 445         {
 446           intf_ErrMsg( "error: can't reopen display after YUV change" );
 447           return( 1 );
 448         }
 449         p_vout->i_changes &= ~VOUT_YUV_CHANGE;
 450     }
 451
 452     /*
 453      * Fullscreen change
 454      */
 455     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 456     {
 457         p_vout->b_fullscreen = ! p_vout->b_fullscreen;
 458
 459         SDL_WM_ToggleFullScreen(p_vout->p_sys->p_display);
 460
 461         p_vout->p_sys->b_cursor_autohidden = 0;
 462         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 463                         ! p_vout->p_sys->b_cursor_autohidden );
 464
 465         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 466     }
 467
 468     /*
 469      * Pointer change
 470      */
 471     if( ! p_vout->p_sys->b_cursor_autohidden &&
 472         ( mdate() - p_vout->p_sys->i_lastmoved > 2000000 ) )
 473     {
 474         /* Hide the mouse automatically */
 475         p_vout->p_sys->b_cursor_autohidden = 1;
 476         SDL_ShowCursor( 0 );
 477     }
 478
 479     if( p_vout->i_changes & VOUT_CURSOR_CHANGE )
 480     {
 481         p_vout->p_sys->b_cursor = ! p_vout->p_sys->b_cursor;
 482
 483         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 484                         ! p_vout->p_sys->b_cursor_autohidden );
 485
 486         p_vout->i_changes &= ~VOUT_CURSOR_CHANGE;
 487     }
 488
 489     return( 0 );
 490 }
 491
 492 /*****************************************************************************
 493  * vout_SetPalette: sets an 8 bpp palette
 494  *****************************************************************************
 495  * This function sets the palette given as an argument. It does not return
 496  * anything, but could later send information on which colors it was unable
 497  * to set.
 498  *****************************************************************************/
 499 static void vout_SetPalette( p_vout_thread_t p_vout, u16 *red, u16 *green,
 500                          u16 *blue, u16 *transp)
 501 {
 502      /* Create a display surface with a grayscale palette */
 503     SDL_Color colors[256];
 504     int i;
 505
 506     /* Fill colors with color information */
 507     for( i = 0; i < 256; i++ )
 508     {
 509         colors[ i ].r = red[ i ] >> 8;
 510         colors[ i ].g = green[ i ] >> 8;
 511         colors[ i ].b = blue[ i ] >> 8;
 512     }
 513
 514     /* Set palette */
 515     if( SDL_SetColors( p_vout->p_sys->p_display, colors, 0, 256 ) == 0 )
 516     {
 517         intf_ErrMsg( "vout error: failed setting palette" );
 518     }
 519
 520 }
 521
 522 /*****************************************************************************
 523  * vout_Display: displays previously rendered output
 524  *****************************************************************************
 525  * This function send the currently rendered image to the display, wait until
 526  * it is displayed and switch the two rendering buffer, preparing next frame.
 527  *****************************************************************************/
 528 static void vout_Display( vout_thread_t *p_vout )
 529 {
 530     SDL_Rect    disp;
 531     if((p_vout->p_sys->p_display != NULL) && !p_vout->p_sys->b_reopen_display)
 532     {
 533         if( p_vout->b_need_render )
 534         {
 535             /* Change display frame */
 536             SDL_Flip( p_vout->p_sys->p_display );
 537         }
 538         else
 539         {
 540             /*
 541              * p_vout->p_rendered_pic->p_y/u/v contains the YUV buffers to
 542              * render
 543              */
 544             /* TODO: support for streams other than 4:2:0 */
 545             /* create the overlay if necessary */
 546             if( p_vout->p_sys->p_overlay == NULL )
 547             {
 548                 p_vout->p_sys->p_overlay = SDL_CreateYUVOverlay(
 549                                              p_vout->p_rendered_pic->i_width,
 550                                              p_vout->p_rendered_pic->i_height,
 551                                              SDL_YV12_OVERLAY,
 552                                              p_vout->p_sys->p_display
 553                                            );
 554                 intf_Msg("vout: YUV acceleration %s",
 555                             p_vout->p_sys->p_overlay->hw_overlay
 556                             ? "activated" : "unavailable !" );
 557             }
 558
 559             SDL_LockYUVOverlay(p_vout->p_sys->p_overlay);
 560             /* copy the data into video buffers */
 561             /* Y first */
 562             memcpy(p_vout->p_sys->p_overlay->pixels[0],
 563                    p_vout->p_rendered_pic->p_y,
 564                    p_vout->p_sys->p_overlay->h *
 565                    p_vout->p_sys->p_overlay->pitches[0]);
 566             /* then V */
 567             memcpy(p_vout->p_sys->p_overlay->pixels[1],
 568                    p_vout->p_rendered_pic->p_v,
 569                    p_vout->p_sys->p_overlay->h *
 570                    p_vout->p_sys->p_overlay->pitches[1] / 2);
 571             /* and U */
 572             memcpy(p_vout->p_sys->p_overlay->pixels[2],
 573                    p_vout->p_rendered_pic->p_u,
 574                    p_vout->p_sys->p_overlay->h *
 575                    p_vout->p_sys->p_overlay->pitches[2] / 2);
 576
 577             disp.w = (&p_vout->p_buffer[p_vout->i_buffer_index])->i_pic_width;
 578             disp.h = (&p_vout->p_buffer[p_vout->i_buffer_index])->i_pic_height;
 579             disp.x = (p_vout->i_width - disp.w)/2;
 580             disp.y = (p_vout->i_height - disp.h)/2;
 581
 582             SDL_DisplayYUVOverlay( p_vout->p_sys->p_overlay , &disp );
 583             SDL_UnlockYUVOverlay(p_vout->p_sys->p_overlay);
 584         }
 585     }
 586 }
 587
 588 /* following functions are local */
 589
 590 /*****************************************************************************
 591  * SDLOpenDisplay: open and initialize SDL device
 592  *****************************************************************************
 593  * Open and initialize display according to preferences specified in the vout
 594  * thread fields.
 595  *****************************************************************************/
 596 static int SDLOpenDisplay( vout_thread_t *p_vout )
 597 {
 598     SDL_Rect    clipping_rect;
 599     Uint32      flags;
 600     int bpp;
 601     /* Open display
 602      * TODO: Check that we can request for a DOUBLEBUF HWSURFACE display
 603      */
 604
 605     /* init flags and cursor */
 606     flags = SDL_ANYFORMAT | SDL_HWPALETTE;
 607
 608     if( p_vout->b_fullscreen )
 609     {
 610         flags |= SDL_FULLSCREEN;
 611     }
 612     else
 613     {
 614         flags |= SDL_RESIZABLE;
 615     }
 616
 617     if( p_vout->b_need_render )
 618     {
 619         flags |= SDL_HWSURFACE | SDL_DOUBLEBUF;
 620     }
 621     else
 622     {
 623         flags |= SDL_SWSURFACE; /* save video memory */
 624     }
 625
 626     bpp = SDL_VideoModeOK( p_vout->p_sys->i_width,
 627                            p_vout->p_sys->i_height,
 628                            p_vout->i_screen_depth, flags );
 629
 630     if( bpp == 0 )
 631     {
 632         intf_ErrMsg( "vout error: no video mode available" );
 633         return( 1 );
 634     }
 635
 636     p_vout->p_sys->p_display = SDL_SetVideoMode(p_vout->p_sys->i_width,
 637                                                 p_vout->p_sys->i_height,
 638                                                 bpp, flags);
 639
 640     if( p_vout->p_sys->p_display == NULL )
 641     {
 642         intf_ErrMsg( "vout error: cannot set video mode" );
 643         return( 1 );
 644     }
 645
 646     SDL_LockSurface( p_vout->p_sys->p_display );
 647
 648     SDL_WM_SetCaption( VOUT_TITLE " (SDL output)",
 649                        VOUT_TITLE " (SDL output)" );
 650     SDL_EventState(SDL_KEYUP , SDL_IGNORE);                /* ignore keys up */
 651
 652     if( p_vout->b_need_render )
 653     {
 654         p_vout->p_sys->p_sdl_buf[ 0 ] = p_vout->p_sys->p_display->pixels;
 655         SDL_Flip(p_vout->p_sys->p_display);
 656         p_vout->p_sys->p_sdl_buf[ 1 ] = p_vout->p_sys->p_display->pixels;
 657         SDL_Flip(p_vout->p_sys->p_display);
 658
 659         /* Set clipping for text */
 660         clipping_rect.x = 0;
 661         clipping_rect.y = 0;
 662         clipping_rect.w = p_vout->p_sys->p_display->w;
 663         clipping_rect.h = p_vout->p_sys->p_display->h;
 664         SDL_SetClipRect(p_vout->p_sys->p_display, &clipping_rect);
 665
 666         /* Set thread information */
 667         p_vout->i_width =           p_vout->p_sys->p_display->w;
 668         p_vout->i_height =          p_vout->p_sys->p_display->h;
 669         p_vout->i_bytes_per_line =  p_vout->p_sys->p_display->pitch;
 670
 671         p_vout->i_screen_depth =
 672             p_vout->p_sys->p_display->format->BitsPerPixel;
 673         p_vout->i_bytes_per_pixel =
 674             p_vout->p_sys->p_display->format->BytesPerPixel;
 675
 676         p_vout->i_red_mask =        p_vout->p_sys->p_display->format->Rmask;
 677         p_vout->i_green_mask =      p_vout->p_sys->p_display->format->Gmask;
 678         p_vout->i_blue_mask =       p_vout->p_sys->p_display->format->Bmask;
 679
 680         /* FIXME: palette in 8bpp ?? */
 681         /* Set and initialize buffers */
 682         vout_SetBuffers( p_vout, p_vout->p_sys->p_sdl_buf[ 0 ],
 683                                  p_vout->p_sys->p_sdl_buf[ 1 ] );
 684     }
 685     else
 686     {
 687         p_vout->p_sys->p_sdl_buf[ 0 ] = p_vout->p_sys->p_display->pixels;
 688         p_vout->p_sys->p_sdl_buf[ 1 ] = p_vout->p_sys->p_display->pixels;
 689
 690         /* Set thread information */
 691         p_vout->i_width =           p_vout->p_sys->p_display->w;
 692         p_vout->i_height =          p_vout->p_sys->p_display->h;
 693         p_vout->i_bytes_per_line =  p_vout->p_sys->p_display->pitch;
 694
 695         vout_SetBuffers( p_vout, p_vout->p_sys->p_sdl_buf[ 0 ],
 696                                  p_vout->p_sys->p_sdl_buf[ 1 ] );
 697     }
 698
 699     p_vout->p_sys->b_reopen_display = 0;
 700
 701     return( 0 );
 702 }
 703
 704 /*****************************************************************************
 705  * SDLCloseDisplay: close and reset SDL device
 706  *****************************************************************************
 707  * This function returns all resources allocated by SDLOpenDisplay and restore
 708  * the original state of the device.
 709  *****************************************************************************/
 710 static void SDLCloseDisplay( vout_thread_t *p_vout )
 711 {
 712     if( p_vout->p_sys->p_display != NULL )
 713     {
 714         if( p_vout->p_sys->p_overlay != NULL )
 715         {
 716             SDL_FreeYUVOverlay( p_vout->p_sys->p_overlay );
 717             p_vout->p_sys->p_overlay = NULL;
 718         }
 719
 720         SDL_UnlockSurface ( p_vout->p_sys->p_display );
 721         SDL_FreeSurface( p_vout->p_sys->p_display );
 722         p_vout->p_sys->p_display = NULL;
 723     }
 724 }
 725