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 1.47 2001/04/11 02:01:24 henri 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 | SDL_INIT_EVENTTHREAD | SDL_INIT_NOPARACHUTE)
 162             < 0 )
 163     {
 164         intf_ErrMsg( "vout error: can't initialize SDL (%s)", SDL_GetError() );
 165         free( p_vout->p_sys );
 166         return( 1 );
 167     }
 168
 169     p_vout->p_sys->b_cursor = 1; /* TODO should be done with a main_GetInt.. */
 170
 171     p_vout->p_sys->b_cursor_autohidden = 0;
 172     p_vout->p_sys->i_lastmoved = mdate();
 173
 174     p_vout->p_sys->b_fullscreen = main_GetIntVariable( VOUT_FULLSCREEN_VAR,
 175                                 VOUT_FULLSCREEN_DEFAULT );
 176     p_vout->p_sys->b_overlay = main_GetIntVariable( VOUT_OVERLAY_VAR,
 177                                 VOUT_OVERLAY_DEFAULT );
 178     p_vout->p_sys->i_width = main_GetIntVariable( VOUT_WIDTH_VAR,
 179                                 VOUT_WIDTH_DEFAULT );
 180     p_vout->p_sys->i_height = main_GetIntVariable( VOUT_HEIGHT_VAR,
 181                                 VOUT_HEIGHT_DEFAULT );
 182
 183     p_vout->p_sys->p_display = NULL;
 184     p_vout->p_sys->p_overlay = NULL;
 185
 186     if( SDLOpenDisplay(p_vout) )
 187     {
 188         intf_ErrMsg( "vout error: can't set up SDL (%s)", SDL_GetError() );
 189         free( p_vout->p_sys );
 190         return( 1 );
 191     }
 192
 193     /* FIXME: get rid of this ASAP, it's FUCKING UGLY */
 194     { intf_thread_t * p_intf = p_main->p_intf;
 195     intf_AssignKey(p_intf, SDLK_q,      INTF_KEY_QUIT, 0);
 196     intf_AssignKey(p_intf, SDLK_ESCAPE, INTF_KEY_QUIT, 0);
 197     /* intf_AssignKey(p_intf,3,'Q'); */
 198     intf_AssignKey(p_intf, SDLK_0,      INTF_KEY_SET_CHANNEL,0);
 199     intf_AssignKey(p_intf, SDLK_1,      INTF_KEY_SET_CHANNEL,1);
 200     intf_AssignKey(p_intf, SDLK_2,      INTF_KEY_SET_CHANNEL,2);
 201     intf_AssignKey(p_intf, SDLK_3,      INTF_KEY_SET_CHANNEL,3);
 202     intf_AssignKey(p_intf, SDLK_4,      INTF_KEY_SET_CHANNEL,4);
 203     intf_AssignKey(p_intf, SDLK_5,      INTF_KEY_SET_CHANNEL,5);
 204     intf_AssignKey(p_intf, SDLK_6,      INTF_KEY_SET_CHANNEL,6);
 205     intf_AssignKey(p_intf, SDLK_7,      INTF_KEY_SET_CHANNEL,7);
 206     intf_AssignKey(p_intf, SDLK_8,      INTF_KEY_SET_CHANNEL,8);
 207     intf_AssignKey(p_intf, SDLK_9,      INTF_KEY_SET_CHANNEL,9);
 208     intf_AssignKey(p_intf, SDLK_PLUS,   INTF_KEY_INC_VOLUME, 0);
 209     intf_AssignKey(p_intf, SDLK_MINUS,  INTF_KEY_DEC_VOLUME, 0);
 210     intf_AssignKey(p_intf, SDLK_m,      INTF_KEY_TOGGLE_VOLUME, 0);
 211     /* intf_AssignKey(p_intf,'M','M'); */
 212     intf_AssignKey(p_intf, SDLK_g,      INTF_KEY_DEC_GAMMA, 0);
 213     /* intf_AssignKey(p_intf,'G','G'); */
 214     intf_AssignKey(p_intf, SDLK_c,      INTF_KEY_TOGGLE_GRAYSCALE, 0);
 215     intf_AssignKey(p_intf, SDLK_SPACE,  INTF_KEY_TOGGLE_INTERFACE, 0);
 216     intf_AssignKey(p_intf, SDLK_i,      INTF_KEY_TOGGLE_INFO, 0);
 217     intf_AssignKey(p_intf, SDLK_s,      INTF_KEY_TOGGLE_SCALING, 0);
 218     intf_AssignKey(p_intf, SDLK_d,      INTF_KEY_DUMP_STREAM, 0); }
 219
 220     return( 0 );
 221 }
 222
 223 /*****************************************************************************
 224  * vout_Init: initialize SDL video thread output method
 225  *****************************************************************************
 226  * This function initialize the SDL display device.
 227  *****************************************************************************/
 228 static int vout_Init( vout_thread_t *p_vout )
 229 {
 230     /* This hack is hugly, but hey, you are, too. */
 231
 232     SDL_Overlay *   p_overlay;
 233
 234     p_overlay = SDL_CreateYUVOverlay(
 235            main_GetIntVariable( VOUT_WIDTH_VAR,VOUT_WIDTH_DEFAULT ),
 236            main_GetIntVariable( VOUT_HEIGHT_VAR,VOUT_HEIGHT_DEFAULT ),
 237                                       SDL_YV12_OVERLAY,
 238                                       p_vout->p_sys->p_display );
 239     intf_Msg( "vout: YUV acceleration %s",
 240               p_overlay->hw_overlay ? "activated" : "unavailable !" );
 241     p_vout->b_need_render = !p_overlay->hw_overlay;
 242
 243     SDL_FreeYUVOverlay( p_overlay );
 244
 245     return( 0 );
 246 }
 247
 248 /*****************************************************************************
 249  * vout_End: terminate Sys video thread output method
 250  *****************************************************************************
 251  * Terminate an output method created by vout_SDLCreate
 252  *****************************************************************************/
 253 static void vout_End( vout_thread_t *p_vout )
 254 {
 255     SDLCloseDisplay( p_vout );
 256     SDL_Quit();
 257 }
 258
 259 /*****************************************************************************
 260  * vout_Destroy: destroy Sys video thread output method
 261  *****************************************************************************
 262  * Terminate an output method created by vout_SDLCreate
 263  *****************************************************************************/
 264 static void vout_Destroy( vout_thread_t *p_vout )
 265 {
 266     free( p_vout->p_sys );
 267 }
 268
 269 /*****************************************************************************
 270  * vout_Manage: handle Sys events
 271  *****************************************************************************
 272  * This function should be called regularly by video output thread. It returns
 273  * a non null value if an error occured.
 274  *****************************************************************************/
 275 static int vout_Manage( vout_thread_t *p_vout )
 276 {
 277     SDL_Event event;                                            /* SDL event */
 278     char *    p_key;
 279
 280     /* Process events */
 281     while( SDL_PollEvent(&event) )
 282     {
 283         switch( event.type )
 284         {
 285         case SDL_VIDEORESIZE:                          /* Resizing of window */
 286             p_vout->i_width = event.resize.w;
 287             p_vout->i_height = event.resize.h;
 288             p_vout->i_changes |= VOUT_SIZE_CHANGE;
 289             break;
 290
 291         case SDL_MOUSEMOTION:
 292             if( p_vout->p_sys->b_cursor &&
 293                 (abs(event.motion.xrel) > 2 || abs(event.motion.yrel) > 2) )
 294             {
 295                 if( p_vout->p_sys->b_cursor_autohidden )
 296                 {
 297                     p_vout->p_sys->b_cursor_autohidden = 0;
 298                     SDL_ShowCursor( 1 );
 299                 }
 300                 else
 301                 {
 302                     p_vout->p_sys->i_lastmoved = mdate();
 303                 }
 304             }
 305             break;
 306
 307         case SDL_MOUSEBUTTONUP:
 308             switch( event.button.button )
 309             {
 310             case SDL_BUTTON_RIGHT:
 311                 p_main->p_intf->b_menu_change = 1;
 312                 break;
 313             }
 314             break;
 315
 316         case SDL_MOUSEBUTTONDOWN:
 317             switch( event.button.button )
 318             {
 319             case SDL_BUTTON_MIDDLE:
 320                 p_vout->i_changes |= VOUT_CURSOR_CHANGE;
 321                 break;
 322             }
 323             break;
 324
 325         case SDL_QUIT:
 326             intf_ProcessKey( p_main->p_intf, SDLK_q );
 327             break;
 328
 329         case SDL_KEYDOWN:                             /* if a key is pressed */
 330
 331             switch( event.key.keysym.sym )
 332             {
 333             case SDLK_f:                             /* switch to fullscreen */
 334                 p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 335                 break;
 336
 337             case SDLK_y:                               /* switch to hard YUV */
 338                 p_vout->i_changes |= VOUT_YUV_CHANGE;
 339                 break;
 340
 341             case SDLK_c:                                 /* toggle grayscale */
 342                 p_vout->b_grayscale = ! p_vout->b_grayscale;
 343                 p_vout->i_changes |= VOUT_GRAYSCALE_CHANGE;
 344                 break;
 345
 346             case SDLK_i:                                      /* toggle info */
 347                 p_vout->b_info = ! p_vout->b_info;
 348                 p_vout->i_changes |= VOUT_INFO_CHANGE;
 349                 break;
 350
 351             case SDLK_s:                                   /* toggle scaling */
 352                 p_vout->b_scale = ! p_vout->b_scale;
 353                 p_vout->i_changes |= VOUT_SCALE_CHANGE;
 354                 break;
 355
 356             case SDLK_SPACE:                             /* toggle interface */
 357                 p_vout->b_interface = ! p_vout->b_interface;
 358                 p_vout->i_changes |= VOUT_INTF_CHANGE;
 359                 break;
 360
 361             case SDLK_F10:
 362                 network_ChannelJoin( 0 );
 363                 break;
 364             case SDLK_F1:
 365                 network_ChannelJoin( 1 );
 366                 break;
 367             case SDLK_F2:
 368                 network_ChannelJoin( 2 );
 369                 break;
 370             case SDLK_F3:
 371                 network_ChannelJoin( 3 );
 372                 break;
 373             case SDLK_F4:
 374                 network_ChannelJoin( 4 );
 375                 break;
 376             case SDLK_F5:
 377                 network_ChannelJoin( 5 );
 378                 break;
 379             case SDLK_F6:
 380                 network_ChannelJoin( 6 );
 381                 break;
 382             case SDLK_F7:
 383                 network_ChannelJoin( 7 );
 384                 break;
 385             case SDLK_F8:
 386                 network_ChannelJoin( 8 );
 387                 break;
 388             case SDLK_F9:
 389                 network_ChannelJoin( 9 );
 390                 break;
 391
 392             case SDLK_MENU:
 393                 p_main->p_intf->b_menu_change = 1;
 394                 break;
 395
 396             default:
 397                 p_key = SDL_GetKeyName( event.key.keysym.sym ) ;
 398                 if( intf_ProcessKey( p_main->p_intf,
 399                                      (char )event.key.keysym.sym ) )
 400                 {
 401                    intf_DbgMsg( "unhandled key '%c' (%i)",
 402                                 (char)event.key.keysym.sym,
 403                                 event.key.keysym.sym );
 404                 }
 405                 break;
 406             }
 407             break;
 408
 409         default:
 410             break;
 411         }
 412     }
 413
 414     /*
 415      * Size Change
 416      */
 417     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 418     {
 419         p_vout->p_sys->i_width = p_vout->i_width;
 420         p_vout->p_sys->i_height = p_vout->i_height;
 421
 422         /* Need to reopen display */
 423         SDLCloseDisplay( p_vout );
 424         if( SDLOpenDisplay( p_vout ) )
 425         {
 426           intf_ErrMsg( "vout error: can't reopen display after resize" );
 427           return( 1 );
 428         }
 429         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 430     }
 431
 432     /*
 433      * YUV Change
 434      */
 435     if( p_vout->i_changes & VOUT_YUV_CHANGE )
 436     {
 437         p_vout->b_need_render = ! p_vout->b_need_render;
 438
 439         /* Need to reopen display */
 440         SDLCloseDisplay( p_vout );
 441         if( SDLOpenDisplay( p_vout ) )
 442         {
 443           intf_ErrMsg( "error: can't reopen display after YUV change" );
 444           return( 1 );
 445         }
 446         p_vout->i_changes &= ~VOUT_YUV_CHANGE;
 447     }
 448
 449     /*
 450      * Fullscreen change
 451      */
 452     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 453     {
 454         p_vout->p_sys->b_fullscreen = ! p_vout->p_sys->b_fullscreen;
 455
 456         SDL_WM_ToggleFullScreen(p_vout->p_sys->p_display);
 457
 458         p_vout->p_sys->b_cursor_autohidden = 0;
 459         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 460                         ! p_vout->p_sys->b_cursor_autohidden );
 461
 462         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 463     }
 464
 465     /*
 466      * Pointer change
 467      */
 468     if( ! p_vout->p_sys->b_cursor_autohidden &&
 469         ( mdate() - p_vout->p_sys->i_lastmoved > 2000000 ) )
 470     {
 471         /* Hide the mouse automatically */
 472         p_vout->p_sys->b_cursor_autohidden = 1;
 473         SDL_ShowCursor( 0 );
 474     }
 475
 476     if( p_vout->i_changes & VOUT_CURSOR_CHANGE )
 477     {
 478         p_vout->p_sys->b_cursor = ! p_vout->p_sys->b_cursor;
 479
 480         SDL_ShowCursor( p_vout->p_sys->b_cursor &&
 481                         ! p_vout->p_sys->b_cursor_autohidden );
 482
 483         p_vout->i_changes &= ~VOUT_CURSOR_CHANGE;
 484     }
 485
 486     return( 0 );
 487 }
 488
 489 /*****************************************************************************
 490  * vout_SetPalette: sets an 8 bpp palette
 491  *****************************************************************************
 492  * This function sets the palette given as an argument. It does not return
 493  * anything, but could later send information on which colors it was unable
 494  * to set.
 495  *****************************************************************************/
 496 static void vout_SetPalette( p_vout_thread_t p_vout, u16 *red, u16 *green,
 497                          u16 *blue, u16 *transp)
 498 {
 499      /* Create a display surface with a grayscale palette */
 500     SDL_Color colors[256];
 501     int i;
 502
 503     /* Fill colors with color information */
 504     for( i = 0; i < 256; i++ )
 505     {
 506         colors[ i ].r = red[ i ] >> 8;
 507         colors[ i ].g = green[ i ] >> 8;
 508         colors[ i ].b = blue[ i ] >> 8;
 509     }
 510
 511     /* Set palette */
 512     if( SDL_SetColors( p_vout->p_sys->p_display, colors, 0, 256 ) == 0 )
 513     {
 514         intf_ErrMsg( "vout error: failed setting palette" );
 515     }
 516
 517 }
 518
 519 /*****************************************************************************
 520  * vout_Display: displays previously rendered output
 521  *****************************************************************************
 522  * This function send the currently rendered image to the display, wait until
 523  * it is displayed and switch the two rendering buffer, preparing next frame.
 524  *****************************************************************************/
 525 static void vout_Display( vout_thread_t *p_vout )
 526 {
 527     SDL_Rect    disp;
 528     if((p_vout->p_sys->p_display != NULL) && !p_vout->p_sys->b_reopen_display)
 529     {
 530         if( p_vout->b_need_render )
 531         {
 532             /* Change display frame */
 533             SDL_Flip( p_vout->p_sys->p_display );
 534         }
 535         else
 536         {
 537             /*
 538              * p_vout->p_rendered_pic->p_y/u/v contains the YUV buffers to
 539              * render
 540              */
 541             /* TODO: support for streams other than 4:2:0 */
 542             /* create the overlay if necessary */
 543             if( p_vout->p_sys->p_overlay == NULL )
 544             {
 545                 p_vout->p_sys->p_overlay = SDL_CreateYUVOverlay(
 546                                              p_vout->p_rendered_pic->i_width,
 547                                              p_vout->p_rendered_pic->i_height,
 548                                              SDL_YV12_OVERLAY,
 549                                              p_vout->p_sys->p_display
 550                                            );
 551                 intf_Msg("vout: YUV acceleration %s",
 552                             p_vout->p_sys->p_overlay->hw_overlay
 553                             ? "activated" : "unavailable !" );
 554             }
 555
 556             SDL_LockYUVOverlay(p_vout->p_sys->p_overlay);
 557             /* copy the data into video buffers */
 558             /* Y first */
 559             memcpy(p_vout->p_sys->p_overlay->pixels[0],
 560                    p_vout->p_rendered_pic->p_y,
 561                    p_vout->p_sys->p_overlay->h *
 562                    p_vout->p_sys->p_overlay->pitches[0]);
 563             /* then V */
 564             memcpy(p_vout->p_sys->p_overlay->pixels[1],
 565                    p_vout->p_rendered_pic->p_v,
 566                    p_vout->p_sys->p_overlay->h *
 567                    p_vout->p_sys->p_overlay->pitches[1] / 2);
 568             /* and U */
 569             memcpy(p_vout->p_sys->p_overlay->pixels[2],
 570                    p_vout->p_rendered_pic->p_u,
 571                    p_vout->p_sys->p_overlay->h *
 572                    p_vout->p_sys->p_overlay->pitches[2] / 2);
 573
 574             disp.w = (&p_vout->p_buffer[p_vout->i_buffer_index])->i_pic_width;
 575             disp.h = (&p_vout->p_buffer[p_vout->i_buffer_index])->i_pic_height;
 576             disp.x = (p_vout->i_width - disp.w)/2;
 577             disp.y = (p_vout->i_height - disp.h)/2;
 578
 579             SDL_DisplayYUVOverlay( p_vout->p_sys->p_overlay , &disp );
 580             SDL_UnlockYUVOverlay(p_vout->p_sys->p_overlay);
 581         }
 582     }
 583 }
 584
 585 /* following functions are local */
 586
 587 /*****************************************************************************
 588  * SDLOpenDisplay: open and initialize SDL device
 589  *****************************************************************************
 590  * Open and initialize display according to preferences specified in the vout
 591  * thread fields.
 592  *****************************************************************************/
 593 static int SDLOpenDisplay( vout_thread_t *p_vout )
 594 {
 595     SDL_Rect    clipping_rect;
 596     Uint32      flags;
 597     int bpp;
 598     /* Open display
 599      * TODO: Check that we can request for a DOUBLEBUF HWSURFACE display
 600      */
 601
 602     /* init flags and cursor */
 603     flags = SDL_ANYFORMAT | SDL_HWPALETTE;
 604
 605     if( p_vout->p_sys->b_fullscreen )
 606     {
 607         flags |= SDL_FULLSCREEN;
 608     }
 609     else
 610     {
 611         flags |= SDL_RESIZABLE;
 612     }
 613
 614     if( p_vout->b_need_render )
 615     {
 616         flags |= SDL_HWSURFACE | SDL_DOUBLEBUF;
 617     }
 618     else
 619     {
 620         flags |= SDL_SWSURFACE; /* save video memory */
 621     }
 622
 623     bpp = SDL_VideoModeOK( p_vout->p_sys->i_width,
 624                            p_vout->p_sys->i_height,
 625                            p_vout->i_screen_depth, flags );
 626
 627     if( bpp == 0 )
 628     {
 629         intf_ErrMsg( "vout error: no video mode available" );
 630         return( 1 );
 631     }
 632
 633     p_vout->p_sys->p_display = SDL_SetVideoMode(p_vout->p_sys->i_width,
 634                                                 p_vout->p_sys->i_height,
 635                                                 bpp, flags);
 636
 637     if( p_vout->p_sys->p_display == NULL )
 638     {
 639         intf_ErrMsg( "vout error: cannot set video mode" );
 640         return( 1 );
 641     }
 642
 643     SDL_LockSurface( p_vout->p_sys->p_display );
 644
 645     SDL_WM_SetCaption( VOUT_TITLE " (SDL output)",
 646                        VOUT_TITLE " (SDL output)" );
 647     SDL_EventState(SDL_KEYUP , SDL_IGNORE);                /* ignore keys up */
 648
 649     if( p_vout->b_need_render )
 650     {
 651         p_vout->p_sys->p_sdl_buf[ 0 ] = p_vout->p_sys->p_display->pixels;
 652         SDL_Flip(p_vout->p_sys->p_display);
 653         p_vout->p_sys->p_sdl_buf[ 1 ] = p_vout->p_sys->p_display->pixels;
 654         SDL_Flip(p_vout->p_sys->p_display);
 655
 656         /* Set clipping for text */
 657         clipping_rect.x = 0;
 658         clipping_rect.y = 0;
 659         clipping_rect.w = p_vout->p_sys->p_display->w;
 660         clipping_rect.h = p_vout->p_sys->p_display->h;
 661         SDL_SetClipRect(p_vout->p_sys->p_display, &clipping_rect);
 662
 663         /* Set thread information */
 664         p_vout->i_width =           p_vout->p_sys->p_display->w;
 665         p_vout->i_height =          p_vout->p_sys->p_display->h;
 666         p_vout->i_bytes_per_line =  p_vout->p_sys->p_display->pitch;
 667
 668         p_vout->i_screen_depth =
 669             p_vout->p_sys->p_display->format->BitsPerPixel;
 670         p_vout->i_bytes_per_pixel =
 671             p_vout->p_sys->p_display->format->BytesPerPixel;
 672
 673         p_vout->i_red_mask =        p_vout->p_sys->p_display->format->Rmask;
 674         p_vout->i_green_mask =      p_vout->p_sys->p_display->format->Gmask;
 675         p_vout->i_blue_mask =       p_vout->p_sys->p_display->format->Bmask;
 676
 677         /* FIXME: palette in 8bpp ?? */
 678         /* Set and initialize buffers */
 679         vout_SetBuffers( p_vout, p_vout->p_sys->p_sdl_buf[ 0 ],
 680                                  p_vout->p_sys->p_sdl_buf[ 1 ] );
 681     }
 682     else
 683     {
 684         p_vout->p_sys->p_sdl_buf[ 0 ] = p_vout->p_sys->p_display->pixels;
 685         p_vout->p_sys->p_sdl_buf[ 1 ] = p_vout->p_sys->p_display->pixels;
 686
 687         /* Set thread information */
 688         p_vout->i_width =           p_vout->p_sys->p_display->w;
 689         p_vout->i_height =          p_vout->p_sys->p_display->h;
 690         p_vout->i_bytes_per_line =  p_vout->p_sys->p_display->pitch;
 691
 692         vout_SetBuffers( p_vout, p_vout->p_sys->p_sdl_buf[ 0 ],
 693                                  p_vout->p_sys->p_sdl_buf[ 1 ] );
 694     }
 695
 696     p_vout->p_sys->b_reopen_display = 0;
 697
 698     return( 0 );
 699 }
 700
 701 /*****************************************************************************
 702  * SDLCloseDisplay: close and reset SDL device
 703  *****************************************************************************
 704  * This function returns all resources allocated by SDLOpenDisplay and restore
 705  * the original state of the device.
 706  *****************************************************************************/
 707 static void SDLCloseDisplay( vout_thread_t *p_vout )
 708 {
 709     if( p_vout->p_sys->p_display != NULL )
 710     {
 711         if( p_vout->p_sys->p_overlay != NULL )
 712         {
 713             SDL_FreeYUVOverlay( p_vout->p_sys->p_overlay );
 714             p_vout->p_sys->p_overlay = NULL;
 715         }
 716
 717         SDL_UnlockSurface ( p_vout->p_sys->p_display );
 718         SDL_FreeSurface( p_vout->p_sys->p_display );
 719         p_vout->p_sys->p_display = NULL;
 720     }
 721 }
 722