git.sesse.net Git - vlc/blob - plugins/x11/vout_xvideo.c

   1 /*****************************************************************************
   2  * vout_xvideo.c: Xvideo video output display method
   3  *****************************************************************************
   4  * Copyright (C) 1998, 1999, 2000, 2001 VideoLAN
   5  * $Id: vout_xvideo.c,v 1.27 2001/09/26 12:32:25 massiot Exp $
   6  *
   7  * Authors: Shane Harper <shanegh@optusnet.com.au>
   8  *          Vincent Seguin <seguin@via.ecp.fr>
   9  *          Samuel Hocevar <sam@zoy.org>
  10  *          David Kennedy <dkennedy@tinytoad.com>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  25  *****************************************************************************/
  26
  27 #define MODULE_NAME xvideo
  28 #include "modules_inner.h"
  29
  30 /*****************************************************************************
  31  * Preamble
  32  *****************************************************************************/
  33 #include "defs.h"
  34
  35 #include <errno.h>                                                 /* ENOMEM */
  36 #include <stdlib.h>                                                /* free() */
  37 #include <string.h>                                            /* strerror() */
  38
  39 #ifdef HAVE_MACHINE_PARAM_H
  40 /* BSD */
  41 #include <machine/param.h>
  42 #include <sys/types.h>                                     /* typedef ushort */
  43 #include <sys/ipc.h>
  44 #endif
  45
  46 #ifndef WIN32
  47 #include <netinet/in.h>                               /* BSD: struct in_addr */
  48 #endif
  49
  50 #include <sys/shm.h>                                   /* shmget(), shmctl() */
  51 #include <X11/Xlib.h>
  52 #include <X11/Xutil.h>
  53 #include <X11/keysym.h>
  54 #include <X11/extensions/XShm.h>
  55 #include <X11/extensions/Xv.h>
  56 #include <X11/extensions/Xvlib.h>
  57
  58 #include "config.h"
  59 #include "common.h"
  60 #include "threads.h"
  61 #include "mtime.h"
  62 #include "tests.h"
  63
  64 #include "video.h"
  65 #include "video_output.h"
  66
  67 #include "interface.h"
  68 #include "intf_msg.h"
  69
  70 #include "netutils.h"                                 /* network_ChannelJoin */
  71
  72 #include "main.h"
  73
  74 #include "stream_control.h"                 /* needed by input_ext-intf.h... */
  75 #include "input_ext-intf.h"
  76
  77 #include "modules.h"
  78 #include "modules_export.h"
  79
  80 #define GUID_YUV12_PLANAR 0x32315659
  81
  82
  83 /*****************************************************************************
  84  * vout_sys_t: video output X11 method descriptor
  85  *****************************************************************************
  86  * This structure is part of the video output thread descriptor.
  87  * It describes the XVideo specific properties of an output thread.
  88  *****************************************************************************/
  89 typedef struct vout_sys_s
  90 {
  91     /* User settings */
  92 #if 0
  93     /* this plugin (currently) requires the SHM Ext... */
  94     boolean_t           b_shm;               /* shared memory extension flag */
  95 #endif
  96
  97     /* Internal settings and properties */
  98     Display *           p_display;                        /* display pointer */
  99     int                 i_screen;                           /* screen number */
 100     Window              window;                               /* root window */
 101     GC                  gc;              /* graphic context instance handler */
 102     Window              yuv_window;   /* sub-window for displaying yuv video
 103                                                                         data */
 104     GC                  yuv_gc;
 105     int                 xv_port;
 106
 107     /* Display buffers and shared memory information */
 108     /* Note: only 1 buffer... Xv ext does double buffering. */
 109     XvImage *           p_xvimage;
 110     int                 i_image_width;
 111     int                 i_image_height;
 112                                 /* i_image_width & i_image_height reflect the
 113                                  * size of the XvImage. They are used by
 114                                  * vout_Display() to check if the image to be
 115                                  * displayed can use the current XvImage. */
 116     XShmSegmentInfo     shm_info;       /* shared memory zone information */
 117
 118     /* X11 generic properties */
 119     Atom                wm_protocols;
 120     Atom                wm_delete_window;
 121
 122     int                 i_window_width;              /* width of main window */
 123     int                 i_window_height;            /* height of main window */
 124
 125
 126     /* Screen saver properties */
 127     int                 i_ss_timeout;                             /* timeout */
 128     int                 i_ss_interval;           /* interval between changes */
 129     int                 i_ss_blanking;                      /* blanking mode */
 130     int                 i_ss_exposure;                      /* exposure mode */
 131
 132     /* Mouse pointer properties */
 133     boolean_t           b_mouse_pointer_visible;
 134     mtime_t             i_time_mouse_last_moved; /* used to auto-hide pointer*/
 135     Cursor              blank_cursor;                   /* the hidden cursor */
 136     Pixmap              cursor_pixmap;
 137
 138 } vout_sys_t;
 139
 140 /* Fullscreen needs to be able to hide the wm decorations */
 141 #define MWM_HINTS_DECORATIONS   (1L << 1)
 142 #define PROP_MWM_HINTS_ELEMENTS 5
 143 typedef struct mwmhints_s
 144 {
 145     u32 flags;
 146     u32 functions;
 147     u32 decorations;
 148     s32 input_mode;
 149     u32 status;
 150 } mwmhints_t;
 151
 152 /*****************************************************************************
 153  * Local prototypes
 154  *****************************************************************************/
 155 static int  vout_Probe     ( probedata_t * );
 156 static int  vout_Create    ( vout_thread_t * );
 157 static int  vout_Init      ( vout_thread_t * );
 158 static void vout_End       ( vout_thread_t * );
 159 static void vout_Destroy   ( vout_thread_t * );
 160 static int  vout_Manage    ( vout_thread_t * );
 161 static void vout_Display   ( vout_thread_t * );
 162 static void vout_SetPalette( vout_thread_t *, u16 *, u16 *, u16 *, u16 * );
 163
 164 static int  XVideoCreateWindow       ( vout_thread_t * );
 165 static void XVideoDestroyWindow      ( vout_thread_t *p_vout );
 166 static int  XVideoUpdateImgSizeIfRequired( vout_thread_t *p_vout );
 167 static int  XVideoCreateShmImage     ( Display* dpy, int xv_port,
 168                                        XvImage **pp_xvimage,
 169                                        XShmSegmentInfo *p_shm_info,
 170                                        int i_width, int i_height );
 171 static void XVideoDestroyShmImage    ( vout_thread_t *, XvImage *,
 172                                        XShmSegmentInfo * );
 173 static void X11ToggleMousePointer    ( vout_thread_t * );
 174 static void XVideoEnableScreenSaver  ( vout_thread_t * );
 175 static void XVideoDisableScreenSaver ( vout_thread_t * );
 176 /*static void XVideoSetAttribute       ( vout_thread_t *, char *, float );*/
 177
 178 static int  XVideoCheckForXv         ( Display * );
 179 static int  XVideoGetPort            ( Display * );
 180 static void XVideoOutputCoords       ( const picture_t *, const boolean_t,
 181                                        const int, const int,
 182                                        int *, int *, int *, int * );
 183 static void XVideoDisplay            ( vout_thread_t * );
 184
 185 /*****************************************************************************
 186  * Functions exported as capabilities. They are declared as static so that
 187  * we don't pollute the namespace too much.
 188  *****************************************************************************/
 189 void _M( vout_getfunctions )( function_list_t * p_function_list )
 190 {
 191     p_function_list->pf_probe = vout_Probe;
 192     p_function_list->functions.vout.pf_create     = vout_Create;
 193     p_function_list->functions.vout.pf_init       = vout_Init;
 194     p_function_list->functions.vout.pf_end        = vout_End;
 195     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 196     p_function_list->functions.vout.pf_manage     = vout_Manage;
 197     p_function_list->functions.vout.pf_display    = vout_Display;
 198     p_function_list->functions.vout.pf_setpalette = vout_SetPalette;
 199 }
 200
 201 /*****************************************************************************
 202  * vout_Probe: probe the video driver and return a score
 203  *****************************************************************************
 204  * This returns a score to the plugin manager so that it can select the best
 205  * plugin.
 206  *****************************************************************************/
 207 static int vout_Probe( probedata_t *p_data )
 208 {
 209     Display *p_display;                                   /* display pointer */
 210     char    *psz_display;
 211
 212     /* Open display, unsing 'vlc_display' or DISPLAY environment variable */
 213     psz_display = XDisplayName( main_GetPszVariable(VOUT_DISPLAY_VAR, NULL) );
 214     p_display = XOpenDisplay( psz_display );
 215     if( p_display == NULL )                                         /* error */
 216     {
 217         intf_WarnMsg( 3, "vout: Xvideo cannot open display %s", psz_display );
 218         intf_WarnMsg( 3, "vout: Xvideo not supported" );
 219         return( 0 );
 220     }
 221
 222     if( !XVideoCheckForXv( p_display ) )
 223     {
 224         intf_WarnMsg( 3, "vout: Xvideo not supported" );
 225         XCloseDisplay( p_display );
 226         return( 0 );
 227     }
 228
 229     if( XVideoGetPort( p_display ) < 0 )
 230     {
 231         intf_WarnMsg( 3, "vout: Xvideo not supported" );
 232         XCloseDisplay( p_display );
 233         return( 0 );
 234     }
 235
 236     /* Clean-up everyting */
 237     XCloseDisplay( p_display );
 238
 239     if( TestMethod( VOUT_METHOD_VAR, "xvideo" ) )
 240     {
 241         return( 999 );
 242     }
 243
 244     return( 150 );
 245 }
 246
 247 /*****************************************************************************
 248  * vout_Create: allocate XVideo video thread output method
 249  *****************************************************************************
 250  * This function allocate and initialize a XVideo vout method. It uses some of
 251  * the vout properties to choose the window size, and change them according to
 252  * the actual properties of the display.
 253  *****************************************************************************/
 254 static int vout_Create( vout_thread_t *p_vout )
 255 {
 256     char *psz_display;
 257     XColor cursor_color;
 258
 259     /* Allocate structure */
 260     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 261     if( p_vout->p_sys == NULL )
 262     {
 263         intf_ErrMsg( "vout error: %s", strerror(ENOMEM) );
 264         return( 1 );
 265     }
 266
 267     /* Open display, unsing 'vlc_display' or DISPLAY environment variable */
 268     psz_display = XDisplayName( main_GetPszVariable( VOUT_DISPLAY_VAR, NULL ) );
 269     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
 270
 271     if( p_vout->p_sys->p_display == NULL )                          /* error */
 272     {
 273         intf_ErrMsg( "vout error: cannot open display %s", psz_display );
 274         free( p_vout->p_sys );
 275         return( 1 );
 276     }
 277     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
 278
 279     p_vout->b_fullscreen
 280         = main_GetIntVariable( VOUT_FULLSCREEN_VAR, VOUT_FULLSCREEN_DEFAULT );
 281
 282     if( !XVideoCheckForXv( p_vout->p_sys->p_display ) )
 283     {
 284         intf_ErrMsg( "vout error: no XVideo extension" );
 285         XCloseDisplay( p_vout->p_sys->p_display );
 286         free( p_vout->p_sys );
 287         return( 1 );
 288     }
 289
 290     /* Check we have access to a video port */
 291     if( (p_vout->p_sys->xv_port = XVideoGetPort(p_vout->p_sys->p_display)) <0 )
 292     {
 293         intf_ErrMsg( "vout error: cannot get XVideo port" );
 294         XCloseDisplay( p_vout->p_sys->p_display );
 295         free( p_vout->p_sys );
 296         return 1;
 297     }
 298     intf_DbgMsg( "Using xv port %d" , p_vout->p_sys->xv_port );
 299
 300     /* Create blank cursor (for mouse cursor autohiding) */
 301     p_vout->p_sys->b_mouse_pointer_visible = 1;
 302     p_vout->p_sys->cursor_pixmap = XCreatePixmap( p_vout->p_sys->p_display,
 303                                                   DefaultRootWindow(
 304                                                      p_vout->p_sys->p_display),
 305                                                   1, 1, 1 );
 306
 307     XParseColor( p_vout->p_sys->p_display,
 308                  XCreateColormap( p_vout->p_sys->p_display,
 309                                   DefaultRootWindow(
 310                                                     p_vout->p_sys->p_display ),
 311                                   DefaultVisual(
 312                                                 p_vout->p_sys->p_display,
 313                                                 p_vout->p_sys->i_screen ),
 314                                   AllocNone ),
 315                  "black", &cursor_color );
 316
 317     p_vout->p_sys->blank_cursor = XCreatePixmapCursor(
 318                                       p_vout->p_sys->p_display,
 319                                       p_vout->p_sys->cursor_pixmap,
 320                                       p_vout->p_sys->cursor_pixmap,
 321                                       &cursor_color,
 322                                       &cursor_color, 1, 1 );
 323
 324     /* Spawn base window - this window will include the video output window,
 325      * but also command buttons, subtitles and other indicators */
 326     if( XVideoCreateWindow( p_vout ) )
 327     {
 328         intf_ErrMsg( "vout error: cannot create XVideo window" );
 329         XCloseDisplay( p_vout->p_sys->p_display );
 330         free( p_vout->p_sys );
 331         return( 1 );
 332     }
 333
 334     /* p_vout->pf_setbuffers( p_vout, NULL, NULL ); */
 335
 336 #if 0
 337     /* XXX The brightness and contrast values should be read from environment
 338      * XXX variables... */
 339     XVideoSetAttribute( p_vout, "XV_BRIGHTNESS", 0.5 );
 340     XVideoSetAttribute( p_vout, "XV_CONTRAST",   0.5 );
 341 #endif
 342
 343     /* Disable screen saver and return */
 344     XVideoDisableScreenSaver( p_vout );
 345
 346     return( 0 );
 347 }
 348
 349 /*****************************************************************************
 350  * vout_Init: initialize XVideo video thread output method
 351  *****************************************************************************/
 352 static int vout_Init( vout_thread_t *p_vout )
 353 {
 354 #ifdef SYS_DARWIN
 355     /* FIXME : As of 2001-03-16, XFree4 for MacOS X does not support Xshm. */
 356     p_vout->p_sys->b_shm = 0;
 357 #endif
 358     p_vout->b_need_render = 0;
 359     p_vout->p_sys->i_image_width = p_vout->p_sys->i_image_height = 0;
 360
 361     return( 0 );
 362 }
 363
 364 /*****************************************************************************
 365  * vout_End: terminate XVideo video thread output method
 366  *****************************************************************************
 367  * Destroy the XvImage. It is called at the end of the thread, but also each
 368  * time the image is resized.
 369  *****************************************************************************/
 370 static void vout_End( vout_thread_t *p_vout )
 371 {
 372     XVideoDestroyShmImage( p_vout, p_vout->p_sys->p_xvimage,
 373                            &p_vout->p_sys->shm_info );
 374 }
 375
 376 /*****************************************************************************
 377  * vout_Destroy: destroy XVideo video thread output method
 378  *****************************************************************************
 379  * Terminate an output method created by vout_Create
 380  *****************************************************************************/
 381 static void vout_Destroy( vout_thread_t *p_vout )
 382 {
 383     /* Restore cursor if it was blanked */
 384     if( !p_vout->p_sys->b_mouse_pointer_visible )
 385         X11ToggleMousePointer( p_vout );
 386
 387     /* Destroy blank cursor pixmap */
 388     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
 389
 390     XVideoEnableScreenSaver( p_vout );
 391     XVideoDestroyWindow( p_vout );
 392     XCloseDisplay( p_vout->p_sys->p_display );
 393
 394     /* Destroy structure */
 395     free( p_vout->p_sys );
 396 }
 397
 398 /*****************************************************************************
 399  * vout_Manage: handle X11 events
 400  *****************************************************************************
 401  * This function should be called regularly by video output thread. It manages
 402  * X11 events and allows window resizing. It returns a non null value on
 403  * error.
 404  *
 405  * XXX  Should "factor-out" common code in this and the "same" fn in the x11
 406  * XXX  plugin!
 407  *****************************************************************************/
 408 static int vout_Manage( vout_thread_t *p_vout )
 409 {
 410     XEvent      xevent;                                         /* X11 event */
 411     char        i_key;                                    /* ISO Latin-1 key */
 412     KeySym      x_key_symbol;
 413
 414     /* Handle X11 events: ConfigureNotify events are parsed to know if the
 415      * output window's size changed, MapNotify and UnmapNotify to know if the
 416      * window is mapped (and if the display is useful), and ClientMessages
 417      * to intercept window destruction requests */
 418     while( XCheckWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
 419                               StructureNotifyMask | KeyPressMask |
 420                               ButtonPressMask | ButtonReleaseMask |
 421                               PointerMotionMask, &xevent )
 422            == True )
 423     {
 424         /* ConfigureNotify event: prepare  */
 425         if( (xevent.type == ConfigureNotify)
 426             /*&& ((xevent.xconfigure.width != p_vout->p_sys->i_window_width)
 427                 || (xevent.xconfigure.height != p_vout->p_sys->i_window_height))*/ )
 428         {
 429             /* Update dimensions */
 430             p_vout->p_sys->i_window_width = xevent.xconfigure.width;
 431             p_vout->p_sys->i_window_height = xevent.xconfigure.height;
 432         }
 433         /* MapNotify event: change window status and disable screen saver */
 434         else if( xevent.type == MapNotify)
 435         {
 436             if( (p_vout != NULL) && !p_vout->b_active )
 437             {
 438                 XVideoDisableScreenSaver( p_vout );
 439                 p_vout->b_active = 1;
 440             }
 441         }
 442         /* UnmapNotify event: change window status and enable screen saver */
 443         else if( xevent.type == UnmapNotify )
 444         {
 445             if( (p_vout != NULL) && p_vout->b_active )
 446             {
 447                 XVideoEnableScreenSaver( p_vout );
 448                 p_vout->b_active = 0;
 449             }
 450         }
 451         /* Keyboard event */
 452         else if( xevent.type == KeyPress )
 453         {
 454             /* We may have keys like F1 trough F12, ESC ... */
 455             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 456                                              xevent.xkey.keycode, 0 );
 457             switch( x_key_symbol )
 458             {
 459                  case XK_Escape:
 460                      p_main->p_intf->b_die = 1;
 461                      break;
 462                  case XK_Menu:
 463                      p_main->p_intf->b_menu_change = 1;
 464                      break;
 465                  default:
 466                      /* "Normal Keys"
 467                       * The reason why I use this instead of XK_0 is that
 468                       * with XLookupString, we don't have to care about
 469                       * keymaps. */
 470
 471                     if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
 472                     {
 473                         switch( i_key )
 474                         {
 475                         case 'q':
 476                         case 'Q':
 477                             p_main->p_intf->b_die = 1;
 478                             break;
 479                         case 'f':
 480                         case 'F':
 481                             p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 482                             break;
 483                         case '0':
 484                             network_ChannelJoin( 0 );
 485                             break;
 486                         case '1':
 487                             network_ChannelJoin( 1 );
 488                             break;
 489                         case '2':
 490                             network_ChannelJoin( 2 );
 491                             break;
 492                         case '3':
 493                             network_ChannelJoin( 3 );
 494                             break;
 495                         case '4':
 496                             network_ChannelJoin( 4 );
 497                             break;
 498                         case '5':
 499                             network_ChannelJoin( 5 );
 500                             break;
 501                         case '6':
 502                             network_ChannelJoin( 6 );
 503                             break;
 504                         case '7':
 505                             network_ChannelJoin( 7 );
 506                             break;
 507                         case '8':
 508                             network_ChannelJoin( 8 );
 509                             break;
 510                         case '9':
 511                             network_ChannelJoin( 9 );
 512                             break;
 513                         default:
 514                             if( intf_ProcessKey( p_main->p_intf,
 515                                                  (char )i_key ) )
 516                             {
 517                                intf_DbgMsg( "unhandled key '%c' (%i)",
 518                                             (char)i_key, i_key );
 519                             }
 520                             break;
 521                         }
 522                     }
 523                 break;
 524             }
 525         }
 526         /* Mouse click */
 527         else if( xevent.type == ButtonPress )
 528         {
 529             switch( ((XButtonEvent *)&xevent)->button )
 530             {
 531                 case Button1:
 532                     /* in this part we will eventually manage
 533                      * clicks for DVD navigation for instance */
 534                     break;
 535             }
 536         }
 537         /* Mouse release */
 538         else if( xevent.type == ButtonRelease )
 539         {
 540             switch( ((XButtonEvent *)&xevent)->button )
 541             {
 542                 case Button3:
 543                     /* FIXME: need locking ! */
 544                     p_main->p_intf->b_menu_change = 1;
 545                     break;
 546             }
 547         }
 548         /* Mouse move */
 549         else if( xevent.type == MotionNotify )
 550         {
 551             p_vout->p_sys->i_time_mouse_last_moved = mdate();
 552             if( !p_vout->p_sys->b_mouse_pointer_visible )
 553                 X11ToggleMousePointer( p_vout );
 554         }
 555         /* Other event */
 556         else
 557         {
 558             intf_WarnMsg( 3, "%p -> unhandled event type %d received",
 559                          p_vout, xevent.type );
 560         }
 561     }
 562
 563     /* Handle events for YUV video output sub-window */
 564     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 565                               p_vout->p_sys->yuv_window,
 566                               ExposureMask, &xevent ) == True )
 567     {
 568         /* Window exposed (only handled if stream playback is paused) */
 569         if( xevent.type == Expose )
 570         {
 571             if( ((XExposeEvent *)&xevent)->count == 0 )
 572                 /* (if this is the last a collection of expose events...) */
 573                 if( p_main->p_intf->p_input )
 574                     if( PAUSE_S ==
 575                             p_main->p_intf->p_input->stream.control.i_status )
 576                         XVideoDisplay( p_vout );
 577         }
 578     }
 579
 580     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
 581      * are handled - according to the man pages, the format is always 32
 582      * in this case */
 583     while( XCheckTypedEvent( p_vout->p_sys->p_display,
 584                              ClientMessage, &xevent ) )
 585     {
 586         if( (xevent.xclient.message_type == p_vout->p_sys->wm_protocols)
 587             && (xevent.xclient.data.l[0] == p_vout->p_sys->wm_delete_window ) )
 588         {
 589             p_main->p_intf->b_die = 1;
 590         }
 591         else
 592         {
 593             intf_DbgMsg( "%p -> unhandled ClientMessage received", p_vout );
 594         }
 595     }
 596
 597     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 598     {
 599         intf_DbgMsg( "vout: changing full-screen status" );
 600
 601         p_vout->b_fullscreen = !p_vout->b_fullscreen;
 602
 603         /* Get rid of the old window */
 604         XVideoDestroyWindow( p_vout );
 605
 606         /* And create a new one */
 607         if( XVideoCreateWindow( p_vout ) )
 608         {
 609             intf_ErrMsg( "vout error: cannot create X11 window" );
 610             XCloseDisplay( p_vout->p_sys->p_display );
 611
 612             free( p_vout->p_sys );
 613             return( 1 );
 614         }
 615     }
 616
 617
 618     if( (p_vout->i_changes & VOUT_GRAYSCALE_CHANGE))
 619     {
 620         /* FIXME: clear flags ?? */
 621     }
 622
 623     /*
 624      * Size change
 625      */
 626     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 627     {
 628         intf_DbgMsg( "vout: resizing window" );
 629         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 630         /* Nothing to do here...
 631          * vout_Display() detects size changes of the image to be displayed and
 632          * re-creates the XvImage.*/
 633         intf_Msg( "vout: video display resized (%dx%d)",
 634                   p_vout->i_width, p_vout->i_height );
 635     }
 636
 637     /* Autohide Cursor */
 638     if( p_vout->p_sys->b_mouse_pointer_visible &&
 639         mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
 640     {
 641         X11ToggleMousePointer( p_vout );
 642     }
 643
 644     return 0;
 645 }
 646
 647 /*****************************************************************************
 648  * vout_Display: displays previously rendered output
 649  *****************************************************************************
 650  * This function sends the currently rendered image to X11 server.
 651  * (The Xv extension takes care of "double-buffering".)
 652  *****************************************************************************/
 653 static void vout_Display( vout_thread_t *p_vout )
 654 {
 655     boolean_t b_draw = 1;
 656     int i_size = p_vout->p_rendered_pic->i_width *
 657                    p_vout->p_rendered_pic->i_height;
 658
 659     if( XVideoUpdateImgSizeIfRequired( p_vout ) )
 660     {
 661         return;
 662     }
 663
 664     switch( p_vout->p_rendered_pic->i_type )
 665     {
 666     case YUV_422_PICTURE:
 667         intf_ErrMsg( "vout error: YUV_422_PICTURE not (yet) supported" );
 668         b_draw = 0;
 669         break;
 670
 671     case YUV_444_PICTURE:
 672         intf_ErrMsg( "vout error: YUV_444_PICTURE not (yet) supported" );
 673         b_draw = 0;
 674         break;
 675
 676     case YUV_420_PICTURE:
 677         memcpy( p_vout->p_sys->p_xvimage->data,
 678                 p_vout->p_rendered_pic->p_y, i_size );
 679         memcpy( p_vout->p_sys->p_xvimage->data + ( i_size ),
 680                 p_vout->p_rendered_pic->p_v, i_size / 4 );
 681         memcpy( p_vout->p_sys->p_xvimage->data + ( i_size ) + ( i_size / 4 ),
 682                 p_vout->p_rendered_pic->p_u, i_size / 4 );
 683         break;
 684     }
 685
 686     if( b_draw )
 687     {
 688         XVideoDisplay( p_vout );
 689     }
 690 }
 691
 692 static void vout_SetPalette( p_vout_thread_t p_vout,
 693                              u16 *red, u16 *green, u16 *blue, u16 *transp )
 694 {
 695     return;
 696 }
 697
 698 /* following functions are local */
 699
 700 /*****************************************************************************
 701  * XVideoUpdateImgSizeIfRequired
 702  *****************************************************************************
 703  * This function checks to see if the image to be displayed is of a different
 704  * size to the last image displayed. If so, the old shm block must be
 705  * destroyed and a new one created.
 706  * Note: the "image size" is the size of the image to be passed to the Xv
 707  * extension (which is probably different to the size of the output window).
 708  *****************************************************************************/
 709 static int XVideoUpdateImgSizeIfRequired( vout_thread_t *p_vout )
 710 {
 711     int i_img_width         = p_vout->p_rendered_pic->i_width;
 712     int i_img_height        = p_vout->p_rendered_pic->i_height;
 713
 714     if( p_vout->p_sys->i_image_width != i_img_width
 715             || p_vout->p_sys->i_image_height != i_img_height )
 716     {
 717         if( p_vout->p_sys->i_image_width != 0
 718              && p_vout->p_sys->i_image_height != 0 )
 719         {
 720             /* Destroy XvImage to change its size */
 721             vout_End( p_vout );
 722         }
 723
 724         p_vout->p_sys->i_image_width  = i_img_width;
 725         p_vout->p_sys->i_image_height = i_img_height;
 726
 727         /* Create XvImage using XShm extension */
 728         if( XVideoCreateShmImage( p_vout->p_sys->p_display,
 729                                   p_vout->p_sys->xv_port,
 730                                   &p_vout->p_sys->p_xvimage,
 731                                   &p_vout->p_sys->shm_info,
 732                                   i_img_width, i_img_height ) )
 733         {
 734             intf_ErrMsg( "vout: failed to create xvimage." );
 735             p_vout->p_sys->i_image_width = 0;
 736             return( 1 );
 737         }
 738
 739         /* Set bytes per line and initialize buffers */
 740         p_vout->i_bytes_per_line =
 741             (p_vout->p_sys->p_xvimage->data_size) /
 742             (p_vout->p_sys->p_xvimage->height);
 743
 744     }
 745
 746     return( 0 );
 747 }
 748
 749 /*****************************************************************************
 750  * XVideoCheckForXv: check for the XVideo extension
 751  *****************************************************************************/
 752 static int XVideoCheckForXv( Display *dpy )
 753 {
 754     unsigned int i;
 755
 756     switch( XvQueryExtension( dpy, &i, &i, &i, &i, &i ) )
 757     {
 758         case Success:
 759             return( 1 );
 760
 761         case XvBadExtension:
 762             intf_WarnMsg( 3, "vout error: XvBadExtension" );
 763             return( 0 );
 764
 765         case XvBadAlloc:
 766             intf_WarnMsg( 3, "vout error: XvBadAlloc" );
 767             return( 0 );
 768
 769         default:
 770             intf_WarnMsg( 3, "vout error: XvQueryExtension failed" );
 771             return( 0 );
 772     }
 773 }
 774
 775 /*****************************************************************************
 776  * XVideoCreateWindow: open and set-up XVideo main window
 777  *****************************************************************************/
 778 static int XVideoCreateWindow( vout_thread_t *p_vout )
 779 {
 780     XSizeHints              xsize_hints;
 781     XSetWindowAttributes    xwindow_attributes;
 782     XGCValues               xgcvalues;
 783     XEvent                  xevent;
 784     Atom                    prop;
 785     mwmhints_t              mwmhints;
 786
 787     boolean_t               b_expose;
 788     boolean_t               b_configure_notify;
 789     boolean_t               b_map_notify;
 790
 791
 792     /* Set main window's size */
 793     /* If we're full screen, we're full screen! */
 794     if( p_vout->b_fullscreen )
 795     {
 796         p_vout->p_sys->i_window_width = DisplayWidth( p_vout->p_sys->p_display,
 797                                                       p_vout->p_sys->i_screen );
 798         p_vout->p_sys->i_window_height =  DisplayHeight( p_vout->p_sys->p_display,
 799                                                          p_vout->p_sys->i_screen );
 800 /*      p_vout->i_width =  p_vout->p_sys->i_window_width;
 801         p_vout->i_height = p_vout->p_sys->i_window_height; */
 802     }
 803     else
 804     {
 805         p_vout->p_sys->i_window_width =  p_vout->i_width;
 806         p_vout->p_sys->i_window_height = p_vout->i_height;
 807     }
 808
 809     /* Prepare window manager hints and properties */
 810     xsize_hints.base_width          = p_vout->p_sys->i_window_width;
 811     xsize_hints.base_height         = p_vout->p_sys->i_window_height;
 812     xsize_hints.flags               = PSize;
 813     p_vout->p_sys->wm_protocols     = XInternAtom( p_vout->p_sys->p_display,
 814                                                    "WM_PROTOCOLS", True );
 815     p_vout->p_sys->wm_delete_window = XInternAtom( p_vout->p_sys->p_display,
 816                                                    "WM_DELETE_WINDOW", True );
 817
 818     /* Prepare window attributes */
 819     xwindow_attributes.background_pixel = BlackPixel( p_vout->p_sys->p_display,
 820                                                       p_vout->p_sys->i_screen );
 821
 822     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 823
 824     /* Create the window and set hints - the window must receive ConfigureNotify
 825      * events, and, until it is displayed, Expose and MapNotify events. */
 826     p_vout->p_sys->window =
 827             XCreateWindow( p_vout->p_sys->p_display,
 828                            DefaultRootWindow( p_vout->p_sys->p_display ),
 829                            0, 0,
 830                            p_vout->p_sys->i_window_width,
 831                            p_vout->p_sys->i_window_height, 1,
 832                            0, InputOutput, 0,
 833                            CWBackPixel | CWEventMask,
 834                            &xwindow_attributes );
 835
 836     if ( p_vout->b_fullscreen )
 837     {
 838         prop = XInternAtom(p_vout->p_sys->p_display, "_MOTIF_WM_HINTS", False);
 839         mwmhints.flags = MWM_HINTS_DECORATIONS;
 840         mwmhints.decorations = 0;
 841         XChangeProperty( p_vout->p_sys->p_display, p_vout->p_sys->window,
 842                          prop, prop, 32, PropModeReplace,
 843                          (unsigned char *)&mwmhints, PROP_MWM_HINTS_ELEMENTS );
 844
 845         XSetTransientForHint( p_vout->p_sys->p_display,
 846                               p_vout->p_sys->window, None );
 847         XRaiseWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 848     }
 849
 850
 851     /* Set window manager hints and properties: size hints, command,
 852      * window's name, and accepted protocols */
 853     XSetWMNormalHints( p_vout->p_sys->p_display, p_vout->p_sys->window,
 854                        &xsize_hints );
 855     XSetCommand( p_vout->p_sys->p_display, p_vout->p_sys->window,
 856                  p_main->ppsz_argv, p_main->i_argc );
 857     XStoreName( p_vout->p_sys->p_display, p_vout->p_sys->window,
 858                 VOUT_TITLE " (XVideo output)" );
 859
 860     if( (p_vout->p_sys->wm_protocols == None)        /* use WM_DELETE_WINDOW */
 861         || (p_vout->p_sys->wm_delete_window == None)
 862         || !XSetWMProtocols( p_vout->p_sys->p_display, p_vout->p_sys->window,
 863                              &p_vout->p_sys->wm_delete_window, 1 ) )
 864     {
 865         /* WM_DELETE_WINDOW is not supported by window manager */
 866         intf_Msg( "vout error: missing or bad window manager" );
 867     }
 868
 869     /* Creation of a graphic context that doesn't generate a GraphicsExpose
 870      * event when using functions like XCopyArea */
 871     xgcvalues.graphics_exposures = False;
 872     p_vout->p_sys->gc = XCreateGC( p_vout->p_sys->p_display,
 873                                    p_vout->p_sys->window,
 874                                    GCGraphicsExposures, &xgcvalues);
 875
 876     /* Send orders to server, and wait until window is displayed - three
 877      * events must be received: a MapNotify event, an Expose event allowing
 878      * drawing in the window, and a ConfigureNotify to get the window
 879      * dimensions. Once those events have been received, only ConfigureNotify
 880      * events need to be received. */
 881     b_expose = 0;
 882     b_configure_notify = 0;
 883     b_map_notify = 0;
 884     XMapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window);
 885     do
 886     {
 887         XNextEvent( p_vout->p_sys->p_display, &xevent);
 888         if( (xevent.type == Expose)
 889             && (xevent.xexpose.window == p_vout->p_sys->window) )
 890         {
 891             b_expose = 1;
 892         }
 893         else if( (xevent.type == MapNotify)
 894                  && (xevent.xmap.window == p_vout->p_sys->window) )
 895         {
 896             b_map_notify = 1;
 897         }
 898         else if( (xevent.type == ConfigureNotify)
 899                  && (xevent.xconfigure.window == p_vout->p_sys->window) )
 900         {
 901             b_configure_notify = 1;
 902             p_vout->p_sys->i_window_width = xevent.xconfigure.width;
 903             p_vout->p_sys->i_window_height = xevent.xconfigure.height;
 904         }
 905     } while( !( b_expose && b_configure_notify && b_map_notify ) );
 906
 907     XSelectInput( p_vout->p_sys->p_display, p_vout->p_sys->window,
 908                   StructureNotifyMask | KeyPressMask |
 909                   ButtonPressMask | ButtonReleaseMask |
 910                   PointerMotionMask );
 911
 912     if( p_vout->b_fullscreen )
 913     {
 914         XSetInputFocus( p_vout->p_sys->p_display, p_vout->p_sys->window,
 915                         RevertToNone, CurrentTime );
 916         XMoveWindow( p_vout->p_sys->p_display, p_vout->p_sys->window, 0, 0 );
 917     }
 918
 919     /* Create YUV output sub-window. */
 920     p_vout->p_sys->yuv_window=XCreateSimpleWindow( p_vout->p_sys->p_display,
 921                          p_vout->p_sys->window, 0, 0, 1, 1, 0,
 922                          BlackPixel( p_vout->p_sys->p_display,
 923                                          p_vout->p_sys->i_screen ),
 924                          WhitePixel( p_vout->p_sys->p_display,
 925                                          p_vout->p_sys->i_screen ) );
 926
 927     p_vout->p_sys->yuv_gc = XCreateGC( p_vout->p_sys->p_display,
 928                                         p_vout->p_sys->yuv_window,
 929                                         GCGraphicsExposures, &xgcvalues );
 930
 931     XSetWindowBackground( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window,
 932              BlackPixel(p_vout->p_sys->p_display, p_vout->p_sys->i_screen ) );
 933
 934     XMapWindow( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window );
 935     XSelectInput( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window,
 936                   ExposureMask );
 937
 938     /* If the cursor was formerly blank than blank it again */
 939     if( !p_vout->p_sys->b_mouse_pointer_visible )
 940     {
 941         X11ToggleMousePointer( p_vout );
 942         X11ToggleMousePointer( p_vout );
 943     }
 944
 945     return( 0 );
 946 }
 947
 948 static void XVideoDestroyWindow( vout_thread_t *p_vout )
 949 {
 950     XFreeGC( p_vout->p_sys->p_display, p_vout->p_sys->yuv_gc );
 951     XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window );
 952
 953     XUnmapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 954     XFreeGC( p_vout->p_sys->p_display, p_vout->p_sys->gc );
 955     XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 956 }
 957
 958 /*****************************************************************************
 959  * XVideoCreateShmImage: create an XvImage using shared memory extension
 960  *****************************************************************************
 961  * Prepare an XvImage for display function.
 962  * The order of the operations respects the recommandations of the mit-shm
 963  * document by J.Corbet and K.Packard. Most of the parameters were copied from
 964  * there.
 965  *****************************************************************************/
 966 static int XVideoCreateShmImage( Display* dpy, int xv_port,
 967                                     XvImage **pp_xvimage,
 968                                     XShmSegmentInfo *p_shm_info,
 969                                     int i_width, int i_height )
 970 {
 971     *pp_xvimage = XvShmCreateImage( dpy, xv_port,
 972                                     GUID_YUV12_PLANAR, 0,
 973                                     i_width, i_height,
 974                                     p_shm_info );
 975     if( !(*pp_xvimage) )
 976     {
 977         intf_ErrMsg( "vout error: XvShmCreateImage failed." );
 978         return( -1 );
 979     }
 980
 981     p_shm_info->shmid    = shmget( IPC_PRIVATE, (*pp_xvimage)->data_size,
 982                                    IPC_CREAT | 0777 );
 983     if( p_shm_info->shmid < 0)                                      /* error */
 984     {
 985         intf_ErrMsg( "vout error: cannot allocate shared image data (%s)",
 986                     strerror(errno));
 987         return( 1 );
 988     }
 989
 990     p_shm_info->shmaddr  = (*pp_xvimage)->data = shmat( p_shm_info->shmid,
 991                                                         0, 0 );
 992     p_shm_info->readOnly = False;
 993
 994 #if 0
 995     /* Mark the shm segment to be removed when there will be no more
 996      * attachements, so it is automatic on process exit or after shmdt */
 997     shmctl( p_shm_info->shmid, IPC_RMID, 0 );
 998 #endif
 999
1000     if( !XShmAttach( dpy, p_shm_info ) )
1001     {
1002         intf_ErrMsg( "vout error: XShmAttach failed" );
1003         shmctl( p_shm_info->shmid, IPC_RMID, 0 );
1004         shmdt( p_shm_info->shmaddr );
1005         return( -1 );
1006     }
1007
1008     /* Send image to X server. This instruction is required, since having
1009      * built a Shm XImage and not using it causes an error on XCloseDisplay */
1010     XFlush( dpy );
1011
1012     return( 0 );
1013 }
1014
1015 /*****************************************************************************
1016  * XVideoDestroyShmImage
1017  *****************************************************************************
1018  * Destroy XImage AND associated data. Detach shared memory segment from
1019  * server and process, then free it. If pointer is NULL, the image won't be
1020  * destroyed (see vout_ManageOutputMethod())
1021  *****************************************************************************/
1022 static void XVideoDestroyShmImage( vout_thread_t *p_vout, XvImage *p_xvimage,
1023                                    XShmSegmentInfo *p_shm_info )
1024 {
1025     /* If pointer is NULL, do nothing */
1026     if( p_xvimage == NULL )
1027     {
1028         return;
1029     }
1030
1031     XShmDetach( p_vout->p_sys->p_display, p_shm_info );/* detach from server */
1032 #if 0
1033     XDestroyImage( p_ximage ); /* XXX */
1034 #endif
1035
1036     shmctl( p_shm_info->shmid, IPC_RMID, 0 );
1037
1038     if( shmdt( p_shm_info->shmaddr ) )  /* detach shared memory from process */
1039     {
1040         intf_ErrMsg( "vout error: cannot detach shared memory (%s)",
1041                      strerror(errno) );
1042     }
1043 }
1044
1045 /*****************************************************************************
1046  * XVideoEnableScreenSaver: enable screen saver
1047  *****************************************************************************
1048  * This function enable the screen saver on a display after it had been
1049  * disabled by XDisableScreenSaver. Both functions use a counter mechanism to
1050  * know wether the screen saver can be activated or not: if n successive calls
1051  * are made to XDisableScreenSaver, n successive calls to XEnableScreenSaver
1052  * will be required before the screen saver could effectively be activated.
1053  *****************************************************************************/
1054 void XVideoEnableScreenSaver( vout_thread_t *p_vout )
1055 {
1056     intf_DbgMsg( "intf: enabling screen saver" );
1057     XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1058                      p_vout->p_sys->i_ss_interval,
1059                      p_vout->p_sys->i_ss_blanking,
1060                      p_vout->p_sys->i_ss_exposure );
1061 }
1062
1063 /*****************************************************************************
1064  * XVideoDisableScreenSaver: disable screen saver
1065  *****************************************************************************
1066  * See XEnableScreenSaver
1067  *****************************************************************************/
1068 void XVideoDisableScreenSaver( vout_thread_t *p_vout )
1069 {
1070     /* Save screen saver informations */
1071     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1072                      &p_vout->p_sys->i_ss_interval,
1073                      &p_vout->p_sys->i_ss_blanking,
1074                      &p_vout->p_sys->i_ss_exposure );
1075
1076     /* Disable screen saver */
1077     intf_DbgMsg( "intf: disabling screen saver" );
1078     XSetScreenSaver( p_vout->p_sys->p_display, 0,
1079                      p_vout->p_sys->i_ss_interval,
1080                      p_vout->p_sys->i_ss_blanking,
1081                      p_vout->p_sys->i_ss_exposure );
1082 }
1083
1084 /*****************************************************************************
1085  * X11ToggleMousePointer: hide or show the mouse pointer
1086  *****************************************************************************
1087  * This function hides the X pointer if requested.
1088  *****************************************************************************/
1089 void X11ToggleMousePointer( vout_thread_t *p_vout )
1090 {
1091
1092     if( p_vout->p_sys->b_mouse_pointer_visible )
1093     {
1094         XDefineCursor( p_vout->p_sys->p_display,
1095                        p_vout->p_sys->window,
1096                        p_vout->p_sys->blank_cursor );
1097         p_vout->p_sys->b_mouse_pointer_visible = 0;
1098     }
1099     else
1100     {
1101         XUndefineCursor( p_vout->p_sys->p_display, p_vout->p_sys->window );
1102         p_vout->p_sys->b_mouse_pointer_visible = 1;
1103     }
1104 }
1105
1106 /* This based on some code in SetBufferPicture... At the moment it's only
1107  * used by the xvideo plugin, but others may want to use it. */
1108 static void XVideoOutputCoords( const picture_t *p_pic, const boolean_t scale,
1109                                 const int win_w, const int win_h,
1110                                 int *dx, int *dy, int *w, int *h)
1111 {
1112     if( !scale )
1113     {
1114         *w = p_pic->i_width; *h = p_pic->i_height;
1115     }
1116     else
1117     {
1118         *w = win_w;
1119         switch( p_pic->i_aspect_ratio )
1120         {
1121             case AR_3_4_PICTURE:
1122                 *h = win_w * 3 / 4;
1123                 break;
1124
1125             case AR_16_9_PICTURE:
1126                 *h = win_w * 9 / 16;
1127                 break;
1128
1129             case AR_221_1_PICTURE:
1130                 *h = win_w * 100 / 221;
1131                 break;
1132
1133             case AR_SQUARE_PICTURE:
1134             default:
1135                 *h = win_w * p_pic->i_height / p_pic->i_width;
1136                 break;
1137         }
1138
1139         if( *h > win_h )
1140         {
1141             *h = win_h;
1142             switch( p_pic->i_aspect_ratio )
1143             {
1144                 case AR_3_4_PICTURE:
1145                     *w = win_h * 4 / 3;
1146                     break;
1147
1148                 case AR_16_9_PICTURE:
1149                     *w = win_h * 16 / 9;
1150                     break;
1151
1152                 case AR_221_1_PICTURE:
1153                     *w = win_h * 221 / 100;
1154                     break;
1155
1156                 case AR_SQUARE_PICTURE:
1157                 default:
1158                     *w = win_h * p_pic->i_width / p_pic->i_height;
1159                     break;
1160             }
1161         }
1162     }
1163
1164     /* Set picture position */
1165     *dx = (win_w - *w) / 2;
1166     *dy = (win_h - *h) / 2;
1167 }
1168
1169
1170 /*****************************************************************************
1171  * XVideoGetPort: get YUV12 port
1172  *****************************************************************************
1173  *
1174  *****************************************************************************/
1175 static int XVideoGetPort( Display *dpy )
1176 {
1177     XvAdaptorInfo *p_adaptor;
1178     int i_adaptor, i_num_adaptors, i_requested_adaptor;
1179     int i_selected_port;
1180
1181     switch( XvQueryAdaptors( dpy, DefaultRootWindow( dpy ),
1182                              &i_num_adaptors, &p_adaptor ) )
1183     {
1184         case Success:
1185             break;
1186
1187         case XvBadExtension:
1188             intf_WarnMsg( 3, "vout error: XvBadExtension for XvQueryAdaptors" );
1189             return( -1 );
1190
1191         case XvBadAlloc:
1192             intf_WarnMsg( 3, "vout error: XvBadAlloc for XvQueryAdaptors" );
1193             return( -1 );
1194
1195         default:
1196             intf_WarnMsg( 3, "vout error: XvQueryAdaptors failed" );
1197             return( -1 );
1198     }
1199
1200     i_selected_port = -1;
1201     i_requested_adaptor = main_GetIntVariable( VOUT_XVADAPTOR_VAR, -1 );
1202
1203     /* No special xv port has been requested so try all of them */
1204     for( i_adaptor = 0; i_adaptor < i_num_adaptors; ++i_adaptor )
1205     {
1206         int i_port;
1207
1208         /* If we requested an adaptor and it's not this one, we aren't
1209          * interested */
1210         if( i_requested_adaptor != -1 && i_adaptor != i_requested_adaptor )
1211         {
1212             continue;
1213         }
1214
1215         /* If the adaptor doesn't have the required properties, skip it */
1216         if( !( p_adaptor[ i_adaptor ].type & XvInputMask ) ||
1217             !( p_adaptor[ i_adaptor ].type & XvImageMask ) )
1218         {
1219             continue;
1220         }
1221
1222         for( i_port = p_adaptor[i_adaptor].base_id;
1223              i_port < p_adaptor[i_adaptor].base_id
1224                        + p_adaptor[i_adaptor].num_ports;
1225              i_port++ )
1226         {
1227             XvImageFormatValues *p_formats;
1228             int i_format, i_num_formats;
1229
1230             /* If we already found a port, we aren't interested */
1231             if( i_selected_port != -1 )
1232             {
1233                 continue;
1234             }
1235
1236             /* Check that port supports YUV12 planar format... */
1237             p_formats = XvListImageFormats( dpy, i_port, &i_num_formats );
1238
1239             for( i_format = 0; i_format < i_num_formats; i_format++ )
1240             {
1241                 XvEncodingInfo  *p_enc;
1242                 int             i_enc, i_num_encodings;
1243                 XvAttribute     *p_attr;
1244                 int             i_attr, i_num_attributes;
1245
1246                 if( p_formats[ i_format ].id != GUID_YUV12_PLANAR )
1247                 {
1248                     continue;
1249                 }
1250
1251                 /* Found a matching port, print a description of this port */
1252                 i_selected_port = i_port;
1253
1254                 intf_WarnMsg( 3, "vout: XVideoGetPort found adaptor %i port %i",
1255                                  i_adaptor, i_port);
1256                 intf_WarnMsg( 3, "  image format 0x%x (%4.4s) %s supported",
1257                                  p_formats[ i_format ].id,
1258                                  (char *)&p_formats[ i_format ].id,
1259                                  ( p_formats[ i_format ].format
1260                                     == XvPacked ) ? "packed" : "planar" );
1261
1262                 intf_WarnMsg( 4, " encoding list:" );
1263
1264                 if( XvQueryEncodings( dpy, i_port, &i_num_encodings, &p_enc )
1265                      != Success )
1266                 {
1267                     intf_WarnMsg( 4, "  XvQueryEncodings failed" );
1268                     continue;
1269                 }
1270
1271                 for( i_enc = 0; i_enc < i_num_encodings; i_enc++ )
1272                 {
1273                     intf_WarnMsg( 4, "  id=%ld, name=%s, size=%ldx%ld,"
1274                                      " numerator=%d, denominator=%d",
1275                                   p_enc[i_enc].encoding_id, p_enc[i_enc].name,
1276                                   p_enc[i_enc].width, p_enc[i_enc].height,
1277                                   p_enc[i_enc].rate.numerator,
1278                                   p_enc[i_enc].rate.denominator );
1279                 }
1280
1281                 if( p_enc != NULL )
1282                 {
1283                     XvFreeEncodingInfo( p_enc );
1284                 }
1285
1286                 intf_WarnMsg( 4, " attribute list:" );
1287                 p_attr = XvQueryPortAttributes( dpy, i_port,
1288                                                 &i_num_attributes );
1289                 for( i_attr = 0; i_attr < i_num_attributes; i_attr++ )
1290                 {
1291                     intf_WarnMsg( 4,
1292                           "  name=%s, flags=[%s%s ], min=%i, max=%i",
1293                           p_attr[i_attr].name,
1294                           (p_attr[i_attr].flags & XvGettable) ? " get" : "",
1295                           (p_attr[i_attr].flags & XvSettable) ? " set" : "",
1296                           p_attr[i_attr].min_value, p_attr[i_attr].max_value );
1297                 }
1298
1299                 if( p_attr != NULL )
1300                 {
1301                     XFree( p_attr );
1302                 }
1303             }
1304
1305             if( p_formats != NULL )
1306             {
1307                 XFree( p_formats );
1308             }
1309         }
1310     }
1311
1312     if( i_num_adaptors > 0 )
1313     {
1314         XvFreeAdaptorInfo( p_adaptor );
1315     }
1316
1317     if( i_selected_port == -1 )
1318     {
1319         if( i_requested_adaptor == -1 )
1320         {
1321             intf_WarnMsg( 3, "vout: no XVideo port found supporting YUV12" );
1322         }
1323         else
1324         {
1325             intf_WarnMsg( 3, "vout: XVideo adaptor %i does not support YUV12",
1326                              i_requested_adaptor );
1327         }
1328     }
1329
1330     return( i_selected_port );
1331 }
1332
1333
1334 /*****************************************************************************
1335  * XVideoDisplay: display image
1336  *****************************************************************************
1337  * This function displays the image stored in p_vout->p_sys->p_xvimage.
1338  * The image is scaled to fit in the output window (and to have the correct
1339  * aspect ratio).
1340  *****************************************************************************/
1341 static void XVideoDisplay( vout_thread_t *p_vout )
1342 {
1343     int     i_dest_width, i_dest_height, i_dest_x, i_dest_y;
1344
1345     if( !p_vout->p_sys->p_xvimage )
1346     {
1347         return;
1348     }
1349
1350     XVideoOutputCoords( p_vout->p_rendered_pic, p_vout->b_scale,
1351                         p_vout->p_sys->i_window_width,
1352                         p_vout->p_sys->i_window_height,
1353                         &i_dest_x, &i_dest_y,
1354                         &i_dest_width, &i_dest_height);
1355
1356     XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->xv_port,
1357                    p_vout->p_sys->yuv_window, p_vout->p_sys->gc,
1358                    p_vout->p_sys->p_xvimage,
1359                    0 /*src_x*/, 0 /*src_y*/,
1360                    p_vout->p_rendered_pic->i_width,
1361                    p_vout->p_rendered_pic->i_height,
1362                    0 /*dest_x*/, 0 /*dest_y*/, i_dest_width, i_dest_height,
1363                    False );
1364
1365     XResizeWindow( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window,
1366                    i_dest_width, i_dest_height );
1367     XMoveWindow( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window,
1368                  i_dest_x, i_dest_y );
1369
1370     /* Send the order to the X server */
1371     XSync( p_vout->p_sys->p_display, False );
1372 }
1373
1374 #if 0
1375 /*****************************************************************************
1376  * XVideoSetAttribute
1377  *****************************************************************************
1378  * This function can be used to set attributes, e.g. XV_BRIGHTNESS and
1379  * XV_CONTRAST. "f_value" should be in the range of 0 to 1.
1380  *****************************************************************************/
1381 static void XVideoSetAttribute( vout_thread_t *p_vout,
1382                                 char *attr_name, float f_value )
1383 {
1384     int             i_attrib;
1385     XvAttribute    *p_attrib;
1386     Display        *p_dpy   = p_vout->p_sys->p_display;
1387     int             xv_port = p_vout->p_sys->xv_port;
1388
1389     p_attrib = XvQueryPortAttributes( p_dpy, xv_port, &i_attrib );
1390
1391     do
1392     {
1393         i_attrib--;
1394
1395         if( i_attrib >= 0 && !strcmp( p_attrib[ i_attrib ].name, attr_name ) )
1396         {
1397             int i_sv = f_value * ( p_attrib[ i_attrib ].max_value
1398                                     - p_attrib[ i_attrib ].min_value + 1 )
1399                         + p_attrib[ i_attrib ].min_value;
1400
1401             XvSetPortAttribute( p_dpy, xv_port,
1402                             XInternAtom( p_dpy, attr_name, False ), i_sv );
1403             break;
1404         }
1405
1406     } while( i_attrib > 0 );
1407
1408     if( p_attrib )
1409         XFree( p_attrib );
1410 }
1411 #endif
1412