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) 1998-2001 VideoLAN
   5  * $Id: vout_sdl.c,v 1.76 2002/01/04 14:01:34 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 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #include <errno.h>                                                 /* ENOMEM */
  30 #include <stdlib.h>                                                /* free() */
  31 #include <string.h>                                            /* strerror() */
  32
  33 #include <videolan/vlc.h>
  34
  35 #include <sys/types.h>
  36 #ifndef WIN32
  37 #   include <netinet/in.h>                            /* BSD: struct in_addr */
  38 #endif
  39
  40 #include SDL_INCLUDE_FILE
  41
  42 #include "netutils.h"
  43
  44 #include "video.h"
  45 #include "video_output.h"
  46
  47 #include "interface.h"
  48
  49 #include "stream_control.h"                 /* needed by input_ext-intf.h... */
  50 #include "input_ext-intf.h"
  51
  52 #define SDL_MAX_DIRECTBUFFERS 5
  53 #define SDL_DEFAULT_BPP 16
  54
  55 /*****************************************************************************
  56  * vout_sys_t: video output SDL method descriptor
  57  *****************************************************************************
  58  * This structure is part of the video output thread descriptor.
  59  * It describes the SDL specific properties of an output thread.
  60  *****************************************************************************/
  61 typedef struct vout_sys_s
  62 {
  63     SDL_Surface *   p_display;                             /* display device */
  64     SDL_Overlay *   p_overlay; /* An overlay we keep to grab the XVideo port */
  65
  66     int i_width;
  67     int i_height;
  68
  69     /* For YUV output */
  70     u32 i_chroma;                          /* The internally selected chroma */
  71
  72     /* For RGB output */
  73     int i_surfaces;
  74     int i_red_mask;
  75     int i_green_mask;
  76     int i_blue_mask;
  77
  78     boolean_t   b_cursor;
  79     boolean_t   b_cursor_autohidden;
  80     mtime_t     i_lastmoved;
  81
  82 } vout_sys_t;
  83
  84 /*****************************************************************************
  85  * picture_sys_t: direct buffer method descriptor
  86  *****************************************************************************
  87  * This structure is part of the picture descriptor, it describes the
  88  * SDL specific properties of a direct buffer.
  89  *****************************************************************************/
  90 typedef struct picture_sys_s
  91 {
  92     SDL_Overlay *p_overlay;
  93
  94 } picture_sys_t;
  95
  96 /*****************************************************************************
  97  * Seeking function TODO: put this in a generic location !
  98  *****************************************************************************/
  99 static __inline__ void vout_Seek( off_t i_seek )
 100 {
 101 #define area p_main->p_intf->p_input->stream.p_selected_area
 102     off_t i_tell = area->i_tell;
 103
 104     i_tell += i_seek * (off_t)50 * p_main->p_intf->p_input->stream.i_mux_rate;
 105
 106     i_tell = ( i_tell <= area->i_start ) ? area->i_start
 107            : ( i_tell >= area->i_size ) ? area->i_size
 108            : i_tell;
 109
 110     input_Seek( p_main->p_intf->p_input, i_tell );
 111 #undef area
 112 }
 113
 114 /*****************************************************************************
 115  * Return the best suited FourCC value for a given chroma. We use this
 116  * because a decoder may output FOURCC_IYUV, which is exactly the same as
 117  * FOURCC_I420, but X servers usually know FOURCC_I420 and not FOURCC_IYUV.
 118  *****************************************************************************/
 119 static __inline__ u32 BestChroma( u32 i_chroma )
 120 {
 121     /* XXX: don't forget to update vout_Init if you change this */
 122     switch( i_chroma )
 123     {
 124         /* These ones are almost the same */
 125         case FOURCC_I420:
 126         case FOURCC_IYUV:
 127         case FOURCC_YV12:
 128             return SDL_YV12_OVERLAY;
 129
 130         /* These ones are all the same */
 131         case FOURCC_UYVY:
 132         case FOURCC_UYNV:
 133         case FOURCC_Y422:
 134             return SDL_UYVY_OVERLAY;
 135
 136         /* These ones are all the same */
 137         case FOURCC_YUY2:
 138         case FOURCC_YUNV:
 139             return SDL_YUY2_OVERLAY;
 140
 141         /* We know this one */
 142         case FOURCC_YVYU:
 143             return SDL_YVYU_OVERLAY;
 144
 145         /* This is seldom supported, but we know how to convert it */
 146         case FOURCC_I422:
 147             return SDL_YUY2_OVERLAY;
 148
 149         /* We don't know this chroma, but maybe SDL does */
 150         default:
 151             return i_chroma;
 152     }
 153 }
 154
 155 /*****************************************************************************
 156  * Local prototypes.
 157  *****************************************************************************/
 158 static int  vout_Probe      ( probedata_t *p_data );
 159 static int  vout_Create     ( struct vout_thread_s * );
 160 static int  vout_Init       ( struct vout_thread_s * );
 161 static void vout_End        ( struct vout_thread_s * );
 162 static void vout_Destroy    ( struct vout_thread_s * );
 163 static int  vout_Manage     ( struct vout_thread_s * );
 164 static void vout_Render     ( struct vout_thread_s *, struct picture_s * );
 165 static void vout_Display    ( struct vout_thread_s *, struct picture_s * );
 166
 167 static int  SDLOpenDisplay      ( vout_thread_t *p_vout );
 168 static void SDLCloseDisplay     ( vout_thread_t *p_vout );
 169 static int  SDLNewPicture       ( vout_thread_t *p_vout, picture_t *p_pic );
 170
 171 /*****************************************************************************
 172  * Functions exported as capabilities. They are declared as static so that
 173  * we don't pollute the namespace too much.
 174  *****************************************************************************/
 175 void _M( vout_getfunctions )( function_list_t * p_function_list )
 176 {
 177     p_function_list->pf_probe = vout_Probe;
 178     p_function_list->functions.vout.pf_create     = vout_Create;
 179     p_function_list->functions.vout.pf_init       = vout_Init;
 180     p_function_list->functions.vout.pf_end        = vout_End;
 181     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 182     p_function_list->functions.vout.pf_manage     = vout_Manage;
 183     p_function_list->functions.vout.pf_render     = vout_Render;
 184     p_function_list->functions.vout.pf_display    = vout_Display;
 185     p_function_list->functions.vout.pf_setpalette = NULL;
 186 }
 187
 188 /*****************************************************************************
 189  * vout_Probe: probe the video driver and return a score
 190  *****************************************************************************
 191  * This function tries to initialize SDL and returns a score to the
 192  * plugin manager so that it can select the best plugin.
 193  *****************************************************************************/
 194 static int vout_Probe( probedata_t *p_data )
 195 {
 196     if( SDL_WasInit( SDL_INIT_VIDEO ) != 0 )
 197     {
 198         return( 0 );
 199     }
 200
 201     return( 100 );
 202 }
 203
 204 /*****************************************************************************
 205  * vout_Create: allocate SDL video thread output method
 206  *****************************************************************************
 207  * This function allocate and initialize a SDL vout method. It uses some of the
 208  * vout properties to choose the correct mode, and change them according to the
 209  * mode actually used.
 210  *****************************************************************************/
 211 static int vout_Create( vout_thread_t *p_vout )
 212 {
 213     if( SDL_WasInit( SDL_INIT_VIDEO ) != 0 )
 214     {
 215         return( 1 );
 216     }
 217
 218     /* Allocate structure */
 219     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 220     if( p_vout->p_sys == NULL )
 221     {
 222         intf_ErrMsg( "vout error: can't create p_sys (%s)", strerror(ENOMEM) );
 223         return( 1 );
 224     }
 225
 226     /* Initialize library */
 227     if( SDL_Init( SDL_INIT_VIDEO
 228 #ifndef WIN32
 229     /* Win32 SDL implementation doesn't support SDL_INIT_EVENTTHREAD yet*/
 230                 | SDL_INIT_EVENTTHREAD
 231 #endif
 232 #ifdef DEBUG
 233     /* In debug mode you may want vlc to dump a core instead of staying
 234      * stuck */
 235                 | SDL_INIT_NOPARACHUTE
 236 #endif
 237                 ) < 0 )
 238     {
 239         intf_ErrMsg( "vout error: can't initialize SDL (%s)", SDL_GetError() );
 240         free( p_vout->p_sys );
 241         return( 1 );
 242     }
 243
 244     p_vout->p_sys->b_cursor = 1;
 245     p_vout->p_sys->b_cursor_autohidden = 0;
 246     p_vout->p_sys->i_lastmoved = mdate();
 247
 248     if( p_vout->render.i_height * p_vout->render.i_aspect
 249          >= p_vout->render.i_width * VOUT_ASPECT_FACTOR )
 250     {
 251         p_vout->p_sys->i_width = p_vout->render.i_height
 252             * p_vout->render.i_aspect / VOUT_ASPECT_FACTOR;
 253         p_vout->p_sys->i_height = p_vout->render.i_height;
 254     }
 255     else
 256     {
 257         p_vout->p_sys->i_width = p_vout->render.i_width;
 258         p_vout->p_sys->i_height = p_vout->render.i_width
 259             * VOUT_ASPECT_FACTOR / p_vout->render.i_aspect;
 260     }
 261
 262 #if 0
 263     if( p_vout->p_sys->i_width <= 300 && p_vout->p_sys->i_height <= 300 )
 264     {
 265         p_vout->p_sys->i_width <<= 1;
 266         p_vout->p_sys->i_height <<= 1;
 267     }
 268     else if( p_vout->p_sys->i_width <= 400 && p_vout->p_sys->i_height <= 400 )
 269     {
 270         p_vout->p_sys->i_width += p_vout->p_sys->i_width >> 1;
 271         p_vout->p_sys->i_height += p_vout->p_sys->i_height >> 1;
 272     }
 273 #endif
 274
 275     if( SDLOpenDisplay( p_vout ) )
 276     {
 277         intf_ErrMsg( "vout error: can't set up SDL (%s)", SDL_GetError() );
 278         SDL_QuitSubSystem( SDL_INIT_VIDEO );
 279         free( p_vout->p_sys );
 280         return( 1 );
 281     }
 282
 283     return( 0 );
 284 }
 285
 286 /*****************************************************************************
 287  * vout_Init: initialize SDL video thread output method
 288  *****************************************************************************
 289  * This function initialize the SDL display device.
 290  *****************************************************************************/
 291 static int vout_Init( vout_thread_t *p_vout )
 292 {
 293     int i_index;
 294     picture_t *p_pic;
 295
 296     p_vout->p_sys->i_surfaces = 0;
 297
 298     I_OUTPUTPICTURES = 0;
 299
 300     /* Initialize the output structure */
 301     if( p_vout->p_sys->p_overlay == NULL )
 302     {
 303         /* All we have is an RGB image with square pixels */
 304         p_vout->output.i_chroma = p_vout->p_sys->i_chroma;
 305         p_vout->output.i_width  = p_vout->p_sys->i_width;
 306         p_vout->output.i_height = p_vout->p_sys->i_height;
 307         p_vout->output.i_aspect = p_vout->p_sys->i_width
 308                                    * VOUT_ASPECT_FACTOR
 309                                    / p_vout->p_sys->i_height;
 310     }
 311     else
 312     {
 313         switch( p_vout->render.i_chroma )
 314         {
 315         case FOURCC_I420:
 316         case FOURCC_IYUV:
 317         case FOURCC_YV12:
 318
 319         case FOURCC_UYVY:
 320         case FOURCC_UYNV:
 321         case FOURCC_Y422:
 322
 323         case FOURCC_YUY2:
 324         case FOURCC_YUNV:
 325
 326         case FOURCC_YVYU:
 327             /* We can directly handle all these chromas */
 328             p_vout->output.i_chroma = p_vout->render.i_chroma;
 329             p_vout->output.i_width  = p_vout->render.i_width;
 330             p_vout->output.i_height = p_vout->render.i_height;
 331             p_vout->output.i_aspect = p_vout->render.i_aspect;
 332             break;
 333
 334         case FOURCC_I422:
 335             /* We need to convert this one, but at least we keep the
 336              * aspect ratio */
 337             p_vout->output.i_chroma = p_vout->p_sys->i_chroma;
 338             p_vout->output.i_width  = p_vout->render.i_width;
 339             p_vout->output.i_height = p_vout->render.i_height;
 340             p_vout->output.i_aspect = p_vout->render.i_aspect;
 341             break;
 342
 343         default:
 344             /* All we have is an RGB image with square pixels */
 345             p_vout->output.i_chroma = p_vout->p_sys->i_chroma;
 346             p_vout->output.i_width  = p_vout->p_sys->i_width;
 347             p_vout->output.i_height = p_vout->p_sys->i_height;
 348             p_vout->output.i_aspect = p_vout->p_sys->i_width
 349                                        * VOUT_ASPECT_FACTOR
 350                                        / p_vout->p_sys->i_height;
 351             break;
 352         }
 353     }
 354
 355     /* Try to initialize SDL_MAX_DIRECTBUFFERS direct buffers */
 356     while( I_OUTPUTPICTURES < SDL_MAX_DIRECTBUFFERS )
 357     {
 358         p_pic = NULL;
 359
 360         /* Find an empty picture slot */
 361         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 362         {
 363             if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 364             {
 365                 p_pic = p_vout->p_picture + i_index;
 366                 break;
 367             }
 368         }
 369
 370         /* Allocate the picture if we found one */
 371         if( p_pic == NULL || SDLNewPicture( p_vout, p_pic ) )
 372         {
 373             break;
 374         }
 375
 376         p_pic->i_status = DESTROYED_PICTURE;
 377         p_pic->i_type   = DIRECT_PICTURE;
 378
 379         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 380
 381         I_OUTPUTPICTURES++;
 382     }
 383
 384     return( 0 );
 385 }
 386
 387 /*****************************************************************************
 388  * vout_End: terminate Sys video thread output method
 389  *****************************************************************************
 390  * Terminate an output method created by vout_SDLCreate
 391  *****************************************************************************/
 392 static void vout_End( vout_thread_t *p_vout )
 393 {
 394     int i_index;
 395
 396     /* Free the output buffers we allocated */
 397     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 398     {
 399         i_index--;
 400         if( p_vout->p_sys->p_overlay == NULL )
 401         {
 402             /* RGB picture */
 403         }
 404         else
 405         {
 406             SDL_UnlockYUVOverlay(
 407                     PP_OUTPUTPICTURE[ i_index ]->p_sys->p_overlay );
 408             SDL_FreeYUVOverlay(
 409                     PP_OUTPUTPICTURE[ i_index ]->p_sys->p_overlay );
 410         }
 411         free( PP_OUTPUTPICTURE[ i_index ]->p_sys );
 412     }
 413 }
 414
 415 /*****************************************************************************
 416  * vout_Destroy: destroy Sys video thread output method
 417  *****************************************************************************
 418  * Terminate an output method created by vout_SDLCreate
 419  *****************************************************************************/
 420 static void vout_Destroy( vout_thread_t *p_vout )
 421 {
 422     SDLCloseDisplay( p_vout );
 423
 424     SDL_QuitSubSystem( SDL_INIT_VIDEO );
 425
 426     free( p_vout->p_sys );
 427 }
 428
 429 /*****************************************************************************
 430  * vout_Manage: handle Sys events
 431  *****************************************************************************
 432  * This function should be called regularly by video output thread. It returns
 433  * a non null value if an error occured.
 434  *****************************************************************************/
 435 static int vout_Manage( vout_thread_t *p_vout )
 436 {
 437     SDL_Event event;                                            /* SDL event */
 438
 439     /* Process events */
 440     while( SDL_PollEvent(&event) )
 441     {
 442         switch( event.type )
 443         {
 444         case SDL_VIDEORESIZE:                          /* Resizing of window */
 445             p_vout->p_sys->i_width = event.resize.w;
 446             p_vout->p_sys->i_height = event.resize.h;
 447             SDLCloseDisplay( p_vout );
 448             SDLOpenDisplay( p_vout );
 449             break;
 450
 451         case SDL_MOUSEMOTION:
 452             if( p_vout->p_sys->b_cursor &&
 453                 (abs(event.motion.xrel) > 2 || abs(event.motion.yrel) > 2) )
 454             {
 455                 if( p_vout->p_sys->b_cursor_autohidden )
 456                 {
 457                     p_vout->p_sys->b_cursor_autohidden = 0;
 458                     SDL_ShowCursor( 1 );
 459                 }
 460                 else
 461                 {
 462                     p_vout->p_sys->i_lastmoved = mdate();
 463                 }
 464             }
 465             break;
 466
 467         case SDL_MOUSEBUTTONUP:
 468             switch( event.button.button )
 469             {
 470             case SDL_BUTTON_RIGHT:
 471                 p_main->p_intf->b_menu_change = 1;
 472                 break;
 473             }
 474             break;
 475
 476         case SDL_MOUSEBUTTONDOWN:
 477             switch( event.button.button )
 478             {
 479             case SDL_BUTTON_LEFT:
 480                 /* In this part we will eventually manage
 481                  * clicks for DVD navigation for instance. For the
 482                  * moment just pause the stream. */
 483                 input_SetStatus( p_main->p_intf->p_input, INPUT_STATUS_PAUSE );
 484                 break;
 485
 486             case 4:
 487                 vout_Seek( 15 );
 488                 break;
 489
 490             case 5:
 491                 vout_Seek( -15 );
 492                 break;
 493             }
 494             break;
 495
 496         case SDL_QUIT:
 497             p_main->p_intf->b_die = 1;
 498             break;
 499
 500         case SDL_KEYDOWN:                             /* if a key is pressed */
 501
 502             switch( event.key.keysym.sym )
 503             {
 504             case SDLK_q:                                             /* quit */
 505             case SDLK_ESCAPE:
 506                 p_main->p_intf->b_die = 1;
 507                 break;
 508
 509             case SDLK_f:                             /* switch to fullscreen */
 510                 p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 511                 break;
 512
 513             case SDLK_c:                                 /* toggle grayscale */
 514                 p_vout->b_grayscale = ! p_vout->b_grayscale;
 515                 p_vout->i_changes |= VOUT_GRAYSCALE_CHANGE;
 516                 break;
 517
 518             case SDLK_i:                                      /* toggle info */
 519                 p_vout->b_info = ! p_vout->b_info;
 520                 p_vout->i_changes |= VOUT_INFO_CHANGE;
 521                 break;
 522
 523             case SDLK_s:                                   /* toggle scaling */
 524                 p_vout->b_scale = ! p_vout->b_scale;
 525                 p_vout->i_changes |= VOUT_SCALE_CHANGE;
 526                 break;
 527
 528             case SDLK_SPACE:                             /* toggle interface */
 529                 p_vout->b_interface = ! p_vout->b_interface;
 530                 p_vout->i_changes |= VOUT_INTF_CHANGE;
 531                 break;
 532
 533             case SDLK_MENU:
 534                 p_main->p_intf->b_menu_change = 1;
 535                 break;
 536
 537             case SDLK_LEFT:
 538                 vout_Seek( -5 );
 539                 break;
 540
 541             case SDLK_RIGHT:
 542                 vout_Seek( 5 );
 543                 break;
 544
 545             case SDLK_UP:
 546                 vout_Seek( 60 );
 547                 break;
 548
 549             case SDLK_DOWN:
 550                 vout_Seek( -60 );
 551                 break;
 552
 553             case SDLK_F10: network_ChannelJoin( 0 ); break;
 554             case SDLK_F1:  network_ChannelJoin( 1 ); break;
 555             case SDLK_F2:  network_ChannelJoin( 2 ); break;
 556             case SDLK_F3:  network_ChannelJoin( 3 ); break;
 557             case SDLK_F4:  network_ChannelJoin( 4 ); break;
 558             case SDLK_F5:  network_ChannelJoin( 5 ); break;
 559             case SDLK_F6:  network_ChannelJoin( 6 ); break;
 560             case SDLK_F7:  network_ChannelJoin( 7 ); break;
 561             case SDLK_F8:  network_ChannelJoin( 8 ); break;
 562             case SDLK_F9:  network_ChannelJoin( 9 ); break;
 563
 564             default:
 565                 intf_DbgMsg( "unhandled key %i", event.key.keysym.sym );
 566                 break;
 567             }
 568             break;
 569
 570         default:
 571             break;
 572         }
 573     }
 574
 575     /* Fullscreen change */
 576     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 577     {
 578         p_vout->b_fullscreen = ! p_vout->b_fullscreen;
 579
 580         SDL_WM_ToggleFullScreen(p_vout->p_sys->p_display);
 581
 582         p_vout->p_sys->b_cursor_autohidden = 0;
 583         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 584                         ! p_vout->p_sys->b_cursor_autohidden );
 585
 586         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 587     }
 588
 589     /* Pointer change */
 590     if( ! p_vout->p_sys->b_cursor_autohidden &&
 591         ( mdate() - p_vout->p_sys->i_lastmoved > 2000000 ) )
 592     {
 593         /* Hide the mouse automatically */
 594         p_vout->p_sys->b_cursor_autohidden = 1;
 595         SDL_ShowCursor( 0 );
 596     }
 597
 598     return( 0 );
 599 }
 600
 601 /*****************************************************************************
 602  * vout_Render: render previously calculated output
 603  *****************************************************************************/
 604 static void vout_Render( vout_thread_t *p_vout, picture_t *p_pic )
 605 {
 606     ;
 607 }
 608
 609 /*****************************************************************************
 610  * vout_Display: displays previously rendered output
 611  *****************************************************************************
 612  * This function sends the currently rendered image to the display.
 613  *****************************************************************************/
 614 static void vout_Display( vout_thread_t *p_vout, picture_t *p_pic )
 615 {
 616     int x, y, w, h;
 617     SDL_Rect disp;
 618
 619     vout_PlacePicture( p_vout, p_vout->p_sys->i_width, p_vout->p_sys->i_height,
 620                        &x, &y, &w, &h );
 621     disp.x = x;
 622     disp.y = y;
 623     disp.w = w;
 624     disp.h = h;
 625
 626     if( p_vout->p_sys->p_overlay == NULL )
 627     {
 628         /* RGB picture */
 629         SDL_Flip( p_vout->p_sys->p_display );
 630     }
 631     else
 632     {
 633         /* Overlay picture */
 634         SDL_UnlockYUVOverlay( p_pic->p_sys->p_overlay);
 635         SDL_DisplayYUVOverlay( p_pic->p_sys->p_overlay , &disp );
 636         SDL_LockYUVOverlay( p_pic->p_sys->p_overlay);
 637     }
 638 }
 639
 640 /* following functions are local */
 641
 642 /*****************************************************************************
 643  * SDLOpenDisplay: open and initialize SDL device
 644  *****************************************************************************
 645  * Open and initialize display according to preferences specified in the vout
 646  * thread fields.
 647  *****************************************************************************/
 648 static int SDLOpenDisplay( vout_thread_t *p_vout )
 649 {
 650     Uint32 i_flags;
 651     int    i_bpp;
 652
 653     /* Initialize flags and cursor */
 654     i_flags = SDL_ANYFORMAT | SDL_HWPALETTE | SDL_HWSURFACE | SDL_DOUBLEBUF;
 655     i_flags |= p_vout->b_fullscreen ? SDL_FULLSCREEN : SDL_RESIZABLE;
 656
 657     i_bpp = SDL_VideoModeOK( p_vout->p_sys->i_width, p_vout->p_sys->i_height,
 658                              SDL_DEFAULT_BPP, i_flags );
 659     if( i_bpp == 0 )
 660     {
 661         intf_ErrMsg( "vout error: no video mode available" );
 662         return( 1 );
 663     }
 664
 665     p_vout->p_sys->p_display = SDL_SetVideoMode( p_vout->p_sys->i_width,
 666                                                  p_vout->p_sys->i_height,
 667                                                  i_bpp, i_flags );
 668
 669     if( p_vout->p_sys->p_display == NULL )
 670     {
 671         intf_ErrMsg( "vout error: cannot set video mode" );
 672         return( 1 );
 673     }
 674
 675     SDL_LockSurface( p_vout->p_sys->p_display );
 676
 677     /* Ask BestChroma what we should use as a chroma */
 678     p_vout->p_sys->i_chroma = BestChroma( p_vout->render.i_chroma );
 679
 680     p_vout->p_sys->p_overlay =
 681         SDL_CreateYUVOverlay( 32, 32, p_vout->p_sys->i_chroma,
 682                               p_vout->p_sys->p_display );
 683
 684     /* See if BestChroma's guess was valid */
 685     if( p_vout->p_sys->p_overlay == NULL )
 686     {
 687         intf_WarnMsg( 3, "vout warning: cannot set SDL overlay 0x%.8llx",
 688                          p_vout->p_sys->i_chroma );
 689
 690         switch( p_vout->p_sys->p_display->format->BitsPerPixel )
 691         {
 692             case 8:
 693                 p_vout->p_sys->i_chroma = FOURCC_BI_RGB;
 694                 break;
 695             case 15:
 696                 p_vout->p_sys->i_chroma = FOURCC_RV15;
 697                 break;
 698             case 16:
 699                 p_vout->p_sys->i_chroma = FOURCC_RV16;
 700                 break;
 701             case 24:
 702                 p_vout->p_sys->i_chroma = FOURCC_BI_BITFIELDS;
 703                 break;
 704             case 32:
 705                 p_vout->p_sys->i_chroma = FOURCC_BI_BITFIELDS;
 706                 break;
 707             default:
 708                 intf_ErrMsg( "vout error: unknown screen depth" );
 709                 SDL_UnlockSurface( p_vout->p_sys->p_display );
 710                 SDL_FreeSurface( p_vout->p_sys->p_display );
 711                 return( -1 );
 712         }
 713
 714         p_vout->p_sys->i_red_mask = p_vout->p_sys->p_display->format->Rmask;
 715         p_vout->p_sys->i_green_mask = p_vout->p_sys->p_display->format->Gmask;
 716         p_vout->p_sys->i_blue_mask = p_vout->p_sys->p_display->format->Bmask;
 717
 718         SDL_WM_SetCaption( VOUT_TITLE " (software RGB SDL output)",
 719                            VOUT_TITLE " (software RGB SDL output)" );
 720     }
 721     else
 722     {
 723         if( p_vout->p_sys->p_overlay->hw_overlay )
 724         {
 725             SDL_WM_SetCaption( VOUT_TITLE " (hardware YUV SDL output)",
 726                                VOUT_TITLE " (hardware YUV SDL output)" );
 727         }
 728         else
 729         {
 730             SDL_WM_SetCaption( VOUT_TITLE " (software YUV SDL output)",
 731                                VOUT_TITLE " (software YUV SDL output)" );
 732         }
 733     }
 734
 735     SDL_EventState( SDL_KEYUP, SDL_IGNORE );               /* ignore keys up */
 736
 737     return( 0 );
 738 }
 739
 740 /*****************************************************************************
 741  * SDLCloseDisplay: close and reset SDL device
 742  *****************************************************************************
 743  * This function returns all resources allocated by SDLOpenDisplay and restore
 744  * the original state of the device.
 745  *****************************************************************************/
 746 static void SDLCloseDisplay( vout_thread_t *p_vout )
 747 {
 748     SDL_FreeYUVOverlay( p_vout->p_sys->p_overlay );
 749     SDL_UnlockSurface ( p_vout->p_sys->p_display );
 750     SDL_FreeSurface( p_vout->p_sys->p_display );
 751 }
 752
 753 /*****************************************************************************
 754  * SDLNewPicture: allocate a picture
 755  *****************************************************************************
 756  * Returns 0 on success, -1 otherwise
 757  *****************************************************************************/
 758 static int SDLNewPicture( vout_thread_t *p_vout, picture_t *p_pic )
 759 {
 760     int i_width  = p_vout->output.i_width;
 761     int i_height = p_vout->output.i_height;
 762
 763     switch( p_vout->p_sys->i_chroma )
 764     {
 765         case SDL_YV12_OVERLAY:
 766         case SDL_IYUV_OVERLAY:
 767         case SDL_YUY2_OVERLAY:
 768         case SDL_UYVY_OVERLAY:
 769         case SDL_YVYU_OVERLAY:
 770             p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
 771
 772             if( p_pic->p_sys == NULL )
 773             {
 774                 return -1;
 775             }
 776
 777             p_pic->p_sys->p_overlay =
 778                 SDL_CreateYUVOverlay( i_width, i_height,
 779                                       p_vout->p_sys->i_chroma,
 780                                       p_vout->p_sys->p_display );
 781
 782             if( p_pic->p_sys->p_overlay == NULL )
 783             {
 784                 free( p_pic->p_sys );
 785                 return -1;
 786             }
 787
 788             SDL_LockYUVOverlay( p_pic->p_sys->p_overlay );
 789
 790             p_pic->Y_PIXELS = p_pic->p_sys->p_overlay->pixels[0];
 791             p_pic->p[Y_PLANE].i_lines = p_pic->p_sys->p_overlay->h;
 792             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[0];
 793
 794             switch( p_vout->p_sys->i_chroma )
 795             {
 796             case SDL_YV12_OVERLAY:
 797                 p_pic->p[Y_PLANE].i_pixel_bytes = 1;
 798                 p_pic->p[Y_PLANE].b_margin = 0;
 799
 800                 p_pic->U_PIXELS = p_pic->p_sys->p_overlay->pixels[2];
 801                 p_pic->p[U_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
 802                 p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[2];
 803                 p_pic->p[U_PLANE].i_pixel_bytes = 1;
 804                 p_pic->p[U_PLANE].b_margin = 0;
 805
 806                 p_pic->V_PIXELS = p_pic->p_sys->p_overlay->pixels[1];
 807                 p_pic->p[V_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
 808                 p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[1];
 809                 p_pic->p[V_PLANE].i_pixel_bytes = 1;
 810                 p_pic->p[V_PLANE].b_margin = 0;
 811
 812                 p_pic->i_planes = 3;
 813                 break;
 814
 815             case SDL_IYUV_OVERLAY:
 816                 p_pic->p[Y_PLANE].i_pixel_bytes = 1;
 817                 p_pic->p[Y_PLANE].b_margin = 0;
 818
 819                 p_pic->U_PIXELS = p_pic->p_sys->p_overlay->pixels[1];
 820                 p_pic->p[U_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
 821                 p_pic->p[U_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[1];
 822                 p_pic->p[U_PLANE].i_pixel_bytes = 1;
 823                 p_pic->p[U_PLANE].b_margin = 0;
 824
 825                 p_pic->V_PIXELS = p_pic->p_sys->p_overlay->pixels[2];
 826                 p_pic->p[V_PLANE].i_lines = p_pic->p_sys->p_overlay->h / 2;
 827                 p_pic->p[V_PLANE].i_pitch = p_pic->p_sys->p_overlay->pitches[2];
 828                 p_pic->p[V_PLANE].i_pixel_bytes = 1;
 829                 p_pic->p[V_PLANE].b_margin = 0;
 830
 831                 p_pic->i_planes = 3;
 832                 break;
 833
 834             default:
 835                 p_pic->p[Y_PLANE].i_pixel_bytes = 2;
 836                 p_pic->p[Y_PLANE].b_margin = 0;
 837
 838                 p_pic->i_planes = 1;
 839                 break;
 840             }
 841
 842             return 0;
 843
 844         default:
 845             /* RGB picture */
 846             if( p_vout->p_sys->i_surfaces )
 847             {
 848                 /* We already allocated this surface, return */
 849                 return -1;
 850             }
 851
 852             p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
 853
 854             if( p_pic->p_sys == NULL )
 855             {
 856                 return -1;
 857             }
 858
 859             p_pic->p->p_pixels = p_vout->p_sys->p_display->pixels;
 860             p_pic->p->i_lines = p_vout->p_sys->p_display->h;
 861             p_pic->p->i_pitch = p_vout->p_sys->p_display->pitch;
 862
 863             p_pic->p->i_pixel_bytes = 2;
 864             if( p_pic->p->i_pitch != 2 * p_vout->p_sys->p_display->w )
 865             {
 866               intf_ErrMsg("OOO XXX OOO --- Wooooooohoooo !! --- OOO XXX OOO");
 867               intf_ErrMsg("%i != 2 * %i", p_pic->p->i_pitch, p_vout->p_sys->p_display->w );
 868             }
 869             p_pic->p->b_margin = 0;
 870
 871             p_pic->p->i_red_mask = p_vout->p_sys->p_display->format->Rmask;
 872             p_pic->p->i_green_mask = p_vout->p_sys->p_display->format->Gmask;
 873             p_pic->p->i_blue_mask = p_vout->p_sys->p_display->format->Bmask;
 874
 875             p_vout->p_sys->i_surfaces++;
 876
 877             p_pic->i_planes = 1;
 878
 879             return 0;
 880     }
 881 }
 882