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 1.31 2001/11/27 14:31:19 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 #include <X11/extensions/dpms.h>
  58
  59 #include "config.h"
  60 #include "common.h"
  61 #include "threads.h"
  62 #include "mtime.h"
  63 #include "tests.h"
  64
  65 #include "video.h"
  66 #include "video_output.h"
  67
  68 #include "interface.h"
  69 #include "intf_msg.h"
  70
  71 #include "netutils.h"                                 /* network_ChannelJoin */
  72
  73 #include "main.h"
  74
  75 #include "stream_control.h"                 /* needed by input_ext-intf.h... */
  76 #include "input_ext-intf.h"
  77
  78 #include "modules.h"
  79 #include "modules_export.h"
  80
  81 #define GUID_YUV12_PLANAR 0x32315659
  82
  83
  84 /*****************************************************************************
  85  * vout_sys_t: video output X11 method descriptor
  86  *****************************************************************************
  87  * This structure is part of the video output thread descriptor.
  88  * It describes the XVideo specific properties of an output thread.
  89  *****************************************************************************/
  90 typedef struct vout_sys_s
  91 {
  92     /* User settings */
  93 #if 0
  94     /* this plugin (currently) requires the SHM Ext... */
  95     boolean_t           b_shm;               /* shared memory extension flag */
  96 #endif
  97
  98     /* Internal settings and properties */
  99     Display *           p_display;                        /* display pointer */
 100     int                 i_screen;                           /* screen number */
 101     Window              window;                               /* root window */
 102     GC                  gc;              /* graphic context instance handler */
 103     Window              yuv_window;   /* sub-window for displaying yuv video
 104                                                                         data */
 105     GC                  yuv_gc;
 106     int                 xv_port;
 107
 108     /* Display buffers and shared memory information */
 109     /* Note: only 1 buffer... Xv ext does double buffering. */
 110     XvImage *           p_xvimage;
 111     int                 i_image_width;
 112     int                 i_image_height;
 113                                 /* i_image_width & i_image_height reflect the
 114                                  * size of the XvImage. They are used by
 115                                  * vout_Display() to check if the image to be
 116                                  * displayed can use the current XvImage. */
 117     XShmSegmentInfo     shm_info;       /* shared memory zone information */
 118
 119     /* X11 generic properties */
 120     Atom                wm_protocols;
 121     Atom                wm_delete_window;
 122
 123     int                 i_window_width;              /* width of main window */
 124     int                 i_window_height;            /* height of main window */
 125
 126
 127     /* Screen saver properties */
 128     int                 i_ss_timeout;                             /* timeout */
 129     int                 i_ss_interval;           /* interval between changes */
 130     int                 i_ss_blanking;                      /* blanking mode */
 131     int                 i_ss_exposure;                      /* exposure mode */
 132
 133     /* Mouse pointer properties */
 134     boolean_t           b_mouse_pointer_visible;
 135     mtime_t             i_time_mouse_last_moved; /* used to auto-hide pointer*/
 136     Cursor              blank_cursor;                   /* the hidden cursor */
 137     Pixmap              cursor_pixmap;
 138
 139 } vout_sys_t;
 140
 141 /* Fullscreen needs to be able to hide the wm decorations */
 142 #define MWM_HINTS_DECORATIONS   (1L << 1)
 143 #define PROP_MWM_HINTS_ELEMENTS 5
 144 typedef struct mwmhints_s
 145 {
 146     u32 flags;
 147     u32 functions;
 148     u32 decorations;
 149     s32 input_mode;
 150     u32 status;
 151 } mwmhints_t;
 152
 153 /*****************************************************************************
 154  * Local prototypes
 155  *****************************************************************************/
 156 static int  vout_Probe     ( probedata_t * );
 157 static int  vout_Create    ( vout_thread_t * );
 158 static int  vout_Init      ( vout_thread_t * );
 159 static void vout_End       ( vout_thread_t * );
 160 static void vout_Destroy   ( vout_thread_t * );
 161 static int  vout_Manage    ( vout_thread_t * );
 162 static void vout_Display   ( vout_thread_t * );
 163 static void vout_SetPalette( vout_thread_t *, u16 *, u16 *, u16 *, u16 * );
 164
 165 static int  XVideoCreateWindow       ( vout_thread_t * );
 166 static void XVideoDestroyWindow      ( vout_thread_t *p_vout );
 167 static int  XVideoUpdateImgSizeIfRequired( vout_thread_t *p_vout );
 168 static int  XVideoCreateShmImage     ( Display* dpy, int xv_port,
 169                                        XvImage **pp_xvimage,
 170                                        XShmSegmentInfo *p_shm_info,
 171                                        int i_width, int i_height );
 172 static void XVideoDestroyShmImage    ( vout_thread_t *, XvImage *,
 173                                        XShmSegmentInfo * );
 174 static void X11ToggleMousePointer    ( vout_thread_t * );
 175 static void XVideoEnableScreenSaver  ( vout_thread_t * );
 176 static void XVideoDisableScreenSaver ( vout_thread_t * );
 177 /*static void XVideoSetAttribute       ( vout_thread_t *, char *, float );*/
 178
 179 static int  XVideoCheckForXv         ( Display * );
 180 static int  XVideoGetPort            ( Display * );
 181 static void XVideoOutputCoords       ( const picture_t *, const boolean_t,
 182                                        const int, const int,
 183                                        int *, int *, int *, int * );
 184 static void XVideoDisplay            ( vout_thread_t * );
 185
 186 /*****************************************************************************
 187  * Functions exported as capabilities. They are declared as static so that
 188  * we don't pollute the namespace too much.
 189  *****************************************************************************/
 190 void _M( vout_getfunctions )( function_list_t * p_function_list )
 191 {
 192     p_function_list->pf_probe = vout_Probe;
 193     p_function_list->functions.vout.pf_create     = vout_Create;
 194     p_function_list->functions.vout.pf_init       = vout_Init;
 195     p_function_list->functions.vout.pf_end        = vout_End;
 196     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 197     p_function_list->functions.vout.pf_manage     = vout_Manage;
 198     p_function_list->functions.vout.pf_display    = vout_Display;
 199     p_function_list->functions.vout.pf_setpalette = vout_SetPalette;
 200 }
 201
 202 /*****************************************************************************
 203  * vout_Probe: probe the video driver and return a score
 204  *****************************************************************************
 205  * This returns a score to the plugin manager so that it can select the best
 206  * plugin.
 207  *****************************************************************************/
 208 static int vout_Probe( probedata_t *p_data )
 209 {
 210     Display *p_display;                                   /* display pointer */
 211     char    *psz_display;
 212
 213     /* Open display, unsing 'vlc_display' or DISPLAY environment variable */
 214     psz_display = XDisplayName( main_GetPszVariable(VOUT_DISPLAY_VAR, NULL) );
 215     p_display = XOpenDisplay( psz_display );
 216     if( p_display == NULL )                                         /* error */
 217     {
 218         intf_WarnMsg( 3, "vout: Xvideo cannot open display %s", psz_display );
 219         intf_WarnMsg( 3, "vout: Xvideo not supported" );
 220         return( 0 );
 221     }
 222
 223     if( !XVideoCheckForXv( p_display ) )
 224     {
 225         intf_WarnMsg( 3, "vout: Xvideo not supported" );
 226         XCloseDisplay( p_display );
 227         return( 0 );
 228     }
 229
 230     if( XVideoGetPort( p_display ) < 0 )
 231     {
 232         intf_WarnMsg( 3, "vout: Xvideo not supported" );
 233         XCloseDisplay( p_display );
 234         return( 0 );
 235     }
 236
 237     /* Clean-up everyting */
 238     XCloseDisplay( p_display );
 239
 240     if( TestMethod( VOUT_METHOD_VAR, "xvideo" ) )
 241     {
 242         return( 999 );
 243     }
 244
 245     return( 150 );
 246 }
 247
 248 /*****************************************************************************
 249  * vout_Create: allocate XVideo video thread output method
 250  *****************************************************************************
 251  * This function allocate and initialize a XVideo vout method. It uses some of
 252  * the vout properties to choose the window size, and change them according to
 253  * the actual properties of the display.
 254  *****************************************************************************/
 255 static int vout_Create( vout_thread_t *p_vout )
 256 {
 257     char *psz_display;
 258     XColor cursor_color;
 259
 260     /* Allocate structure */
 261     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 262     if( p_vout->p_sys == NULL )
 263     {
 264         intf_ErrMsg( "vout error: %s", strerror(ENOMEM) );
 265         return( 1 );
 266     }
 267
 268     /* Open display, unsing 'vlc_display' or DISPLAY environment variable */
 269     psz_display = XDisplayName( main_GetPszVariable( VOUT_DISPLAY_VAR, NULL ) );
 270     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
 271
 272     if( p_vout->p_sys->p_display == NULL )                          /* error */
 273     {
 274         intf_ErrMsg( "vout error: cannot open display %s", psz_display );
 275         free( p_vout->p_sys );
 276         return( 1 );
 277     }
 278     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
 279
 280     p_vout->b_fullscreen
 281         = main_GetIntVariable( VOUT_FULLSCREEN_VAR, VOUT_FULLSCREEN_DEFAULT );
 282
 283     if( !XVideoCheckForXv( p_vout->p_sys->p_display ) )
 284     {
 285         intf_ErrMsg( "vout error: no XVideo extension" );
 286         XCloseDisplay( p_vout->p_sys->p_display );
 287         free( p_vout->p_sys );
 288         return( 1 );
 289     }
 290
 291     /* Check we have access to a video port */
 292     if( (p_vout->p_sys->xv_port = XVideoGetPort(p_vout->p_sys->p_display)) <0 )
 293     {
 294         intf_ErrMsg( "vout error: cannot get XVideo port" );
 295         XCloseDisplay( p_vout->p_sys->p_display );
 296         free( p_vout->p_sys );
 297         return 1;
 298     }
 299     intf_DbgMsg( "Using xv port %d" , p_vout->p_sys->xv_port );
 300
 301     /* Create blank cursor (for mouse cursor autohiding) */
 302     p_vout->p_sys->b_mouse_pointer_visible = 1;
 303     p_vout->p_sys->cursor_pixmap = XCreatePixmap( p_vout->p_sys->p_display,
 304                                                   DefaultRootWindow(
 305                                                      p_vout->p_sys->p_display),
 306                                                   1, 1, 1 );
 307
 308     XParseColor( p_vout->p_sys->p_display,
 309                  XCreateColormap( p_vout->p_sys->p_display,
 310                                   DefaultRootWindow(
 311                                                     p_vout->p_sys->p_display ),
 312                                   DefaultVisual(
 313                                                 p_vout->p_sys->p_display,
 314                                                 p_vout->p_sys->i_screen ),
 315                                   AllocNone ),
 316                  "black", &cursor_color );
 317
 318     p_vout->p_sys->blank_cursor = XCreatePixmapCursor(
 319                                       p_vout->p_sys->p_display,
 320                                       p_vout->p_sys->cursor_pixmap,
 321                                       p_vout->p_sys->cursor_pixmap,
 322                                       &cursor_color,
 323                                       &cursor_color, 1, 1 );
 324
 325     /* Spawn base window - this window will include the video output window,
 326      * but also command buttons, subtitles and other indicators */
 327     if( XVideoCreateWindow( p_vout ) )
 328     {
 329         intf_ErrMsg( "vout error: cannot create XVideo window" );
 330         XCloseDisplay( p_vout->p_sys->p_display );
 331         free( p_vout->p_sys );
 332         return( 1 );
 333     }
 334
 335     /* p_vout->pf_setbuffers( p_vout, NULL, NULL ); */
 336
 337 #if 0
 338     /* XXX The brightness and contrast values should be read from environment
 339      * XXX variables... */
 340     XVideoSetAttribute( p_vout, "XV_BRIGHTNESS", 0.5 );
 341     XVideoSetAttribute( p_vout, "XV_CONTRAST",   0.5 );
 342 #endif
 343
 344     /* Disable screen saver and return */
 345     XVideoDisableScreenSaver( p_vout );
 346
 347     return( 0 );
 348 }
 349
 350 /*****************************************************************************
 351  * vout_Init: initialize XVideo video thread output method
 352  *****************************************************************************/
 353 static int vout_Init( vout_thread_t *p_vout )
 354 {
 355 #ifdef SYS_DARWIN
 356     /* FIXME : As of 2001-03-16, XFree4 for MacOS X does not support Xshm. */
 357     p_vout->p_sys->b_shm = 0;
 358 #endif
 359     p_vout->b_need_render = 0;
 360     p_vout->p_sys->i_image_width = p_vout->p_sys->i_image_height = 0;
 361
 362     return( 0 );
 363 }
 364
 365 /*****************************************************************************
 366  * vout_End: terminate XVideo video thread output method
 367  *****************************************************************************
 368  * Destroy the XvImage. It is called at the end of the thread, but also each
 369  * time the image is resized.
 370  *****************************************************************************/
 371 static void vout_End( vout_thread_t *p_vout )
 372 {
 373     XVideoDestroyShmImage( p_vout, p_vout->p_sys->p_xvimage,
 374                            &p_vout->p_sys->shm_info );
 375 }
 376
 377 /*****************************************************************************
 378  * vout_Destroy: destroy XVideo video thread output method
 379  *****************************************************************************
 380  * Terminate an output method created by vout_Create
 381  *****************************************************************************/
 382 static void vout_Destroy( vout_thread_t *p_vout )
 383 {
 384     /* Restore cursor if it was blanked */
 385     if( !p_vout->p_sys->b_mouse_pointer_visible )
 386         X11ToggleMousePointer( p_vout );
 387
 388     /* Destroy blank cursor pixmap */
 389     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
 390
 391     XVideoEnableScreenSaver( p_vout );
 392     XVideoDestroyWindow( p_vout );
 393     XCloseDisplay( p_vout->p_sys->p_display );
 394
 395     /* Destroy structure */
 396     free( p_vout->p_sys );
 397 }
 398
 399 /*****************************************************************************
 400  * vout_Manage: handle X11 events
 401  *****************************************************************************
 402  * This function should be called regularly by video output thread. It manages
 403  * X11 events and allows window resizing. It returns a non null value on
 404  * error.
 405  *
 406  * XXX  Should "factor-out" common code in this and the "same" fn in the x11
 407  * XXX  plugin!
 408  *****************************************************************************/
 409 static int vout_Manage( vout_thread_t *p_vout )
 410 {
 411     XEvent      xevent;                                         /* X11 event */
 412     char        i_key;                                    /* ISO Latin-1 key */
 413     KeySym      x_key_symbol;
 414
 415     /* Handle X11 events: ConfigureNotify events are parsed to know if the
 416      * output window's size changed, MapNotify and UnmapNotify to know if the
 417      * window is mapped (and if the display is useful), and ClientMessages
 418      * to intercept window destruction requests */
 419     while( XCheckWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
 420                               StructureNotifyMask | KeyPressMask |
 421                               ButtonPressMask | ButtonReleaseMask |
 422                               PointerMotionMask, &xevent )
 423            == True )
 424     {
 425         /* ConfigureNotify event: prepare  */
 426         if( (xevent.type == ConfigureNotify)
 427             /*&& ((xevent.xconfigure.width != p_vout->p_sys->i_window_width)
 428                 || (xevent.xconfigure.height != p_vout->p_sys->i_window_height))*/ )
 429         {
 430             /* Update dimensions */
 431             p_vout->p_sys->i_window_width = xevent.xconfigure.width;
 432             p_vout->p_sys->i_window_height = xevent.xconfigure.height;
 433 //            p_vout->i_changes |= VOUT_SIZE_CHANGE;
 434         }
 435         /* MapNotify event: change window status and disable screen saver */
 436         else if( xevent.type == MapNotify)
 437         {
 438             if( (p_vout != NULL) && !p_vout->b_active )
 439             {
 440                 XVideoDisableScreenSaver( p_vout );
 441                 p_vout->b_active = 1;
 442             }
 443         }
 444         /* UnmapNotify event: change window status and enable screen saver */
 445         else if( xevent.type == UnmapNotify )
 446         {
 447             if( (p_vout != NULL) && p_vout->b_active )
 448             {
 449                 XVideoEnableScreenSaver( p_vout );
 450                 p_vout->b_active = 0;
 451             }
 452         }
 453         /* Keyboard event */
 454         else if( xevent.type == KeyPress )
 455         {
 456             /* We may have keys like F1 trough F12, ESC ... */
 457             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 458                                              xevent.xkey.keycode, 0 );
 459             switch( x_key_symbol )
 460             {
 461                  case XK_Escape:
 462                      p_main->p_intf->b_die = 1;
 463                      break;
 464                  case XK_Menu:
 465                      p_main->p_intf->b_menu_change = 1;
 466                      break;
 467                  default:
 468                      /* "Normal Keys"
 469                       * The reason why I use this instead of XK_0 is that
 470                       * with XLookupString, we don't have to care about
 471                       * keymaps. */
 472
 473                     if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
 474                     {
 475                         switch( i_key )
 476                         {
 477                         case 'q':
 478                         case 'Q':
 479                             p_main->p_intf->b_die = 1;
 480                             break;
 481                         case 'f':
 482                         case 'F':
 483                             p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 484                             break;
 485                         case '0':
 486                             network_ChannelJoin( 0 );
 487                             break;
 488                         case '1':
 489                             network_ChannelJoin( 1 );
 490                             break;
 491                         case '2':
 492                             network_ChannelJoin( 2 );
 493                             break;
 494                         case '3':
 495                             network_ChannelJoin( 3 );
 496                             break;
 497                         case '4':
 498                             network_ChannelJoin( 4 );
 499                             break;
 500                         case '5':
 501                             network_ChannelJoin( 5 );
 502                             break;
 503                         case '6':
 504                             network_ChannelJoin( 6 );
 505                             break;
 506                         case '7':
 507                             network_ChannelJoin( 7 );
 508                             break;
 509                         case '8':
 510                             network_ChannelJoin( 8 );
 511                             break;
 512                         case '9':
 513                             network_ChannelJoin( 9 );
 514                             break;
 515                         default:
 516                             if( intf_ProcessKey( p_main->p_intf,
 517                                                  (char )i_key ) )
 518                             {
 519                                intf_DbgMsg( "unhandled key '%c' (%i)",
 520                                             (char)i_key, i_key );
 521                             }
 522                             break;
 523                         }
 524                     }
 525                 break;
 526             }
 527         }
 528         /* Mouse click */
 529         else if( xevent.type == ButtonPress )
 530         {
 531             switch( ((XButtonEvent *)&xevent)->button )
 532             {
 533                 case Button1:
 534                     /* in this part we will eventually manage
 535                      * clicks for DVD navigation for instance */
 536                     break;
 537             }
 538         }
 539         /* Mouse release */
 540         else if( xevent.type == ButtonRelease )
 541         {
 542             switch( ((XButtonEvent *)&xevent)->button )
 543             {
 544                 case Button3:
 545                     /* FIXME: need locking ! */
 546                     p_main->p_intf->b_menu_change = 1;
 547                     break;
 548             }
 549         }
 550         /* Mouse move */
 551         else if( xevent.type == MotionNotify )
 552         {
 553             p_vout->p_sys->i_time_mouse_last_moved = mdate();
 554             if( !p_vout->p_sys->b_mouse_pointer_visible )
 555                 X11ToggleMousePointer( p_vout );
 556         }
 557         /* Other event */
 558         else
 559         {
 560             intf_WarnMsg( 3, "%p -> unhandled event type %d received",
 561                          p_vout, xevent.type );
 562         }
 563     }
 564
 565     /* Handle events for YUV video output sub-window */
 566     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 567                               p_vout->p_sys->yuv_window,
 568                               ExposureMask, &xevent ) == True )
 569     {
 570         /* Window exposed (only handled if stream playback is paused) */
 571         if( xevent.type == Expose )
 572         {
 573             if( ((XExposeEvent *)&xevent)->count == 0 )
 574                 /* (if this is the last a collection of expose events...) */
 575                 if( p_main->p_intf->p_input )
 576                     if( PAUSE_S ==
 577                             p_main->p_intf->p_input->stream.control.i_status )
 578                         XVideoDisplay( p_vout );
 579         }
 580     }
 581
 582     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
 583      * are handled - according to the man pages, the format is always 32
 584      * in this case */
 585     while( XCheckTypedEvent( p_vout->p_sys->p_display,
 586                              ClientMessage, &xevent ) )
 587     {
 588         if( (xevent.xclient.message_type == p_vout->p_sys->wm_protocols)
 589             && (xevent.xclient.data.l[0] == p_vout->p_sys->wm_delete_window ) )
 590         {
 591             p_main->p_intf->b_die = 1;
 592         }
 593         else
 594         {
 595             intf_DbgMsg( "%p -> unhandled ClientMessage received", p_vout );
 596         }
 597     }
 598
 599     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 600     {
 601         intf_DbgMsg( "vout: changing full-screen status" );
 602
 603         p_vout->b_fullscreen = !p_vout->b_fullscreen;
 604
 605         /* Get rid of the old window */
 606         XVideoDestroyWindow( p_vout );
 607
 608         /* And create a new one */
 609         if( XVideoCreateWindow( p_vout ) )
 610         {
 611             intf_ErrMsg( "vout error: cannot create X11 window" );
 612             XCloseDisplay( p_vout->p_sys->p_display );
 613
 614             free( p_vout->p_sys );
 615             return( 1 );
 616         }
 617     }
 618
 619
 620     if( (p_vout->i_changes & VOUT_GRAYSCALE_CHANGE))
 621     {
 622         /* FIXME: clear flags ?? */
 623     }
 624
 625     /*
 626      * Size change
 627      */
 628     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 629     {
 630         intf_DbgMsg( "vout: resizing window" );
 631         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 632
 633         p_vout->i_width = p_vout->p_sys->i_window_width;
 634         p_vout->i_height = p_vout->p_sys->i_window_height;
 635
 636         intf_WarnMsg( 3, "vout: video display resized (%dx%d)",
 637                       p_vout->i_width, p_vout->i_height );
 638     }
 639
 640     /* Autohide Cursor */
 641     if( p_vout->p_sys->b_mouse_pointer_visible &&
 642         mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
 643     {
 644         X11ToggleMousePointer( p_vout );
 645     }
 646
 647     return 0;
 648 }
 649
 650 /*****************************************************************************
 651  * vout_Display: displays previously rendered output
 652  *****************************************************************************
 653  * This function sends the currently rendered image to X11 server.
 654  * (The Xv extension takes care of "double-buffering".)
 655  *****************************************************************************/
 656 static void vout_Display( vout_thread_t *p_vout )
 657 {
 658     boolean_t b_draw = 1;
 659     int i_size = p_vout->p_rendered_pic->i_width *
 660                    p_vout->p_rendered_pic->i_height;
 661
 662     if( XVideoUpdateImgSizeIfRequired( p_vout ) )
 663     {
 664         return;
 665     }
 666
 667     switch( p_vout->p_rendered_pic->i_type )
 668     {
 669     case YUV_422_PICTURE:
 670         intf_ErrMsg( "vout error: YUV_422_PICTURE not (yet) supported" );
 671         b_draw = 0;
 672         break;
 673
 674     case YUV_444_PICTURE:
 675         intf_ErrMsg( "vout error: YUV_444_PICTURE not (yet) supported" );
 676         b_draw = 0;
 677         break;
 678
 679     case YUV_420_PICTURE:
 680         memcpy( p_vout->p_sys->p_xvimage->data,
 681                 p_vout->p_rendered_pic->p_y, i_size );
 682         memcpy( p_vout->p_sys->p_xvimage->data + ( i_size ),
 683                 p_vout->p_rendered_pic->p_v, i_size / 4 );
 684         memcpy( p_vout->p_sys->p_xvimage->data + ( i_size ) + ( i_size / 4 ),
 685                 p_vout->p_rendered_pic->p_u, i_size / 4 );
 686         break;
 687     }
 688
 689     if( b_draw )
 690     {
 691         XVideoDisplay( p_vout );
 692     }
 693 }
 694
 695 static void vout_SetPalette( p_vout_thread_t p_vout,
 696                              u16 *red, u16 *green, u16 *blue, u16 *transp )
 697 {
 698     return;
 699 }
 700
 701 /* following functions are local */
 702
 703 /*****************************************************************************
 704  * XVideoUpdateImgSizeIfRequired
 705  *****************************************************************************
 706  * This function checks to see if the image to be displayed is of a different
 707  * size to the last image displayed. If so, the old shm block must be
 708  * destroyed and a new one created.
 709  * Note: the "image size" is the size of the image to be passed to the Xv
 710  * extension (which is probably different to the size of the output window).
 711  *****************************************************************************/
 712 static int XVideoUpdateImgSizeIfRequired( vout_thread_t *p_vout )
 713 {
 714     int i_img_width         = p_vout->p_rendered_pic->i_width;
 715     int i_img_height        = p_vout->p_rendered_pic->i_height;
 716
 717     if( p_vout->p_sys->i_image_width != i_img_width
 718             || p_vout->p_sys->i_image_height != i_img_height )
 719     {
 720         if( p_vout->p_sys->i_image_width != 0
 721              && p_vout->p_sys->i_image_height != 0 )
 722         {
 723             /* Destroy XvImage to change its size */
 724             vout_End( p_vout );
 725         }
 726
 727         p_vout->p_sys->i_image_width  = i_img_width;
 728         p_vout->p_sys->i_image_height = i_img_height;
 729
 730         /* Create XvImage using XShm extension */
 731         if( XVideoCreateShmImage( p_vout->p_sys->p_display,
 732                                   p_vout->p_sys->xv_port,
 733                                   &p_vout->p_sys->p_xvimage,
 734                                   &p_vout->p_sys->shm_info,
 735                                   i_img_width, i_img_height ) )
 736         {
 737             intf_ErrMsg( "vout: failed to create xvimage." );
 738             p_vout->p_sys->i_image_width = 0;
 739             return( 1 );
 740         }
 741
 742         /* Set bytes per line and initialize buffers */
 743         p_vout->i_bytes_per_line =
 744             (p_vout->p_sys->p_xvimage->data_size) /
 745             (p_vout->p_sys->p_xvimage->height);
 746
 747     }
 748
 749     return( 0 );
 750 }
 751
 752 /*****************************************************************************
 753  * XVideoCheckForXv: check for the XVideo extension
 754  *****************************************************************************/
 755 static int XVideoCheckForXv( Display *dpy )
 756 {
 757     unsigned int i;
 758
 759     switch( XvQueryExtension( dpy, &i, &i, &i, &i, &i ) )
 760     {
 761         case Success:
 762             return( 1 );
 763
 764         case XvBadExtension:
 765             intf_WarnMsg( 3, "vout error: XvBadExtension" );
 766             return( 0 );
 767
 768         case XvBadAlloc:
 769             intf_WarnMsg( 3, "vout error: XvBadAlloc" );
 770             return( 0 );
 771
 772         default:
 773             intf_WarnMsg( 3, "vout error: XvQueryExtension failed" );
 774             return( 0 );
 775     }
 776 }
 777
 778 /*****************************************************************************
 779  * XVideoCreateWindow: open and set-up XVideo main window
 780  *****************************************************************************/
 781 static int XVideoCreateWindow( vout_thread_t *p_vout )
 782 {
 783     XSizeHints              xsize_hints;
 784     XSetWindowAttributes    xwindow_attributes;
 785     XGCValues               xgcvalues;
 786     XEvent                  xevent;
 787     Atom                    prop;
 788     mwmhints_t              mwmhints;
 789
 790     boolean_t               b_expose;
 791     boolean_t               b_configure_notify;
 792     boolean_t               b_map_notify;
 793
 794
 795     /* Set main window's size */
 796     /* If we're full screen, we're full screen! */
 797     if( p_vout->b_fullscreen )
 798     {
 799         p_vout->p_sys->i_window_width = DisplayWidth( p_vout->p_sys->p_display,
 800                                                       p_vout->p_sys->i_screen );
 801         p_vout->p_sys->i_window_height =  DisplayHeight( p_vout->p_sys->p_display,
 802                                                          p_vout->p_sys->i_screen );
 803     }
 804     else
 805     {
 806         p_vout->p_sys->i_window_width =  p_vout->i_width;
 807         p_vout->p_sys->i_window_height = p_vout->i_height;
 808     }
 809
 810     /* Prepare window manager hints and properties */
 811     xsize_hints.base_width          = p_vout->p_sys->i_window_width;
 812     xsize_hints.base_height         = p_vout->p_sys->i_window_height;
 813     xsize_hints.flags               = PSize;
 814     p_vout->p_sys->wm_protocols     = XInternAtom( p_vout->p_sys->p_display,
 815                                                    "WM_PROTOCOLS", True );
 816     p_vout->p_sys->wm_delete_window = XInternAtom( p_vout->p_sys->p_display,
 817                                                    "WM_DELETE_WINDOW", True );
 818
 819     /* Prepare window attributes */
 820     xwindow_attributes.background_pixel = BlackPixel( p_vout->p_sys->p_display,
 821                                                       p_vout->p_sys->i_screen );
 822
 823     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 824
 825     /* Create the window and set hints - the window must receive ConfigureNotify
 826      * events, and, until it is displayed, Expose and MapNotify events. */
 827     p_vout->p_sys->window =
 828             XCreateWindow( p_vout->p_sys->p_display,
 829                            DefaultRootWindow( p_vout->p_sys->p_display ),
 830                            0, 0,
 831                            p_vout->p_sys->i_window_width,
 832                            p_vout->p_sys->i_window_height, 1,
 833                            0, InputOutput, 0,
 834                            CWBackPixel | CWEventMask,
 835                            &xwindow_attributes );
 836
 837     if ( p_vout->b_fullscreen )
 838     {
 839         prop = XInternAtom(p_vout->p_sys->p_display, "_MOTIF_WM_HINTS", False);
 840         mwmhints.flags = MWM_HINTS_DECORATIONS;
 841         mwmhints.decorations = 0;
 842         XChangeProperty( p_vout->p_sys->p_display, p_vout->p_sys->window,
 843                          prop, prop, 32, PropModeReplace,
 844                          (unsigned char *)&mwmhints, PROP_MWM_HINTS_ELEMENTS );
 845
 846         XSetTransientForHint( p_vout->p_sys->p_display,
 847                               p_vout->p_sys->window, None );
 848         XRaiseWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 849     }
 850
 851
 852     /* Set window manager hints and properties: size hints, command,
 853      * window's name, and accepted protocols */
 854     XSetWMNormalHints( p_vout->p_sys->p_display, p_vout->p_sys->window,
 855                        &xsize_hints );
 856     XSetCommand( p_vout->p_sys->p_display, p_vout->p_sys->window,
 857                  p_main->ppsz_argv, p_main->i_argc );
 858     XStoreName( p_vout->p_sys->p_display, p_vout->p_sys->window,
 859                 VOUT_TITLE " (XVideo output)" );
 860
 861     if( (p_vout->p_sys->wm_protocols == None)        /* use WM_DELETE_WINDOW */
 862         || (p_vout->p_sys->wm_delete_window == None)
 863         || !XSetWMProtocols( p_vout->p_sys->p_display, p_vout->p_sys->window,
 864                              &p_vout->p_sys->wm_delete_window, 1 ) )
 865     {
 866         /* WM_DELETE_WINDOW is not supported by window manager */
 867         intf_Msg( "vout error: missing or bad window manager" );
 868     }
 869
 870     /* Creation of a graphic context that doesn't generate a GraphicsExpose
 871      * event when using functions like XCopyArea */
 872     xgcvalues.graphics_exposures = False;
 873     p_vout->p_sys->gc = XCreateGC( p_vout->p_sys->p_display,
 874                                    p_vout->p_sys->window,
 875                                    GCGraphicsExposures, &xgcvalues);
 876
 877     /* Send orders to server, and wait until window is displayed - three
 878      * events must be received: a MapNotify event, an Expose event allowing
 879      * drawing in the window, and a ConfigureNotify to get the window
 880      * dimensions. Once those events have been received, only ConfigureNotify
 881      * events need to be received. */
 882     b_expose = 0;
 883     b_configure_notify = 0;
 884     b_map_notify = 0;
 885     XMapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window);
 886     do
 887     {
 888         XNextEvent( p_vout->p_sys->p_display, &xevent);
 889         if( (xevent.type == Expose)
 890             && (xevent.xexpose.window == p_vout->p_sys->window) )
 891         {
 892             b_expose = 1;
 893         }
 894         else if( (xevent.type == MapNotify)
 895                  && (xevent.xmap.window == p_vout->p_sys->window) )
 896         {
 897             b_map_notify = 1;
 898         }
 899         else if( (xevent.type == ConfigureNotify)
 900                  && (xevent.xconfigure.window == p_vout->p_sys->window) )
 901         {
 902             b_configure_notify = 1;
 903             p_vout->p_sys->i_window_width = xevent.xconfigure.width;
 904             p_vout->p_sys->i_window_height = xevent.xconfigure.height;
 905         }
 906     } while( !( b_expose && b_configure_notify && b_map_notify ) );
 907
 908     XSelectInput( p_vout->p_sys->p_display, p_vout->p_sys->window,
 909                   StructureNotifyMask | KeyPressMask |
 910                   ButtonPressMask | ButtonReleaseMask |
 911                   PointerMotionMask );
 912
 913     if( p_vout->b_fullscreen )
 914     {
 915         XSetInputFocus( p_vout->p_sys->p_display, p_vout->p_sys->window,
 916                         RevertToNone, CurrentTime );
 917         XMoveWindow( p_vout->p_sys->p_display, p_vout->p_sys->window, 0, 0 );
 918     }
 919
 920     /* Create YUV output sub-window. */
 921     p_vout->p_sys->yuv_window=XCreateSimpleWindow( p_vout->p_sys->p_display,
 922                          p_vout->p_sys->window, 0, 0, 1, 1, 0,
 923                          BlackPixel( p_vout->p_sys->p_display,
 924                                          p_vout->p_sys->i_screen ),
 925                          WhitePixel( p_vout->p_sys->p_display,
 926                                          p_vout->p_sys->i_screen ) );
 927
 928     p_vout->p_sys->yuv_gc = XCreateGC( p_vout->p_sys->p_display,
 929                                         p_vout->p_sys->yuv_window,
 930                                         GCGraphicsExposures, &xgcvalues );
 931
 932     XSetWindowBackground( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window,
 933              BlackPixel(p_vout->p_sys->p_display, p_vout->p_sys->i_screen ) );
 934
 935     XMapWindow( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window );
 936     XSelectInput( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window,
 937                   ExposureMask );
 938
 939     /* If the cursor was formerly blank than blank it again */
 940     if( !p_vout->p_sys->b_mouse_pointer_visible )
 941     {
 942         X11ToggleMousePointer( p_vout );
 943         X11ToggleMousePointer( p_vout );
 944     }
 945
 946     XSync( p_vout->p_sys->p_display, False );
 947
 948     return( 0 );
 949 }
 950
 951 static void XVideoDestroyWindow( vout_thread_t *p_vout )
 952 {
 953     XSync( p_vout->p_sys->p_display, False );
 954
 955     XFreeGC( p_vout->p_sys->p_display, p_vout->p_sys->yuv_gc );
 956     XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window );
 957
 958     XUnmapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 959     XFreeGC( p_vout->p_sys->p_display, p_vout->p_sys->gc );
 960     XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
 961 }
 962
 963 /*****************************************************************************
 964  * XVideoCreateShmImage: create an XvImage using shared memory extension
 965  *****************************************************************************
 966  * Prepare an XvImage for display function.
 967  * The order of the operations respects the recommandations of the mit-shm
 968  * document by J.Corbet and K.Packard. Most of the parameters were copied from
 969  * there.
 970  *****************************************************************************/
 971 static int XVideoCreateShmImage( Display* dpy, int xv_port,
 972                                     XvImage **pp_xvimage,
 973                                     XShmSegmentInfo *p_shm_info,
 974                                     int i_width, int i_height )
 975 {
 976     *pp_xvimage = XvShmCreateImage( dpy, xv_port,
 977                                     GUID_YUV12_PLANAR, 0,
 978                                     i_width, i_height,
 979                                     p_shm_info );
 980     if( !(*pp_xvimage) )
 981     {
 982         intf_ErrMsg( "vout error: XvShmCreateImage failed." );
 983         return( -1 );
 984     }
 985
 986     p_shm_info->shmid    = shmget( IPC_PRIVATE, (*pp_xvimage)->data_size,
 987                                    IPC_CREAT | 0777 );
 988     if( p_shm_info->shmid < 0)                                      /* error */
 989     {
 990         intf_ErrMsg( "vout error: cannot allocate shared image data (%s)",
 991                     strerror(errno));
 992         return( 1 );
 993     }
 994
 995     p_shm_info->shmaddr  = (*pp_xvimage)->data = shmat( p_shm_info->shmid,
 996                                                         0, 0 );
 997     p_shm_info->readOnly = False;
 998
 999     if( !XShmAttach( dpy, p_shm_info ) )
1000     {
1001         intf_ErrMsg( "vout error: XShmAttach failed" );
1002         shmctl( p_shm_info->shmid, IPC_RMID, 0 );
1003         shmdt( p_shm_info->shmaddr );
1004         return( -1 );
1005     }
1006
1007     /* Send image to X server. This instruction is required, since having
1008      * built a Shm XImage and not using it causes an error on XCloseDisplay */
1009     XSync( dpy, False );
1010
1011     /* Mark the shm segment to be removed when there will be no more
1012      * attachements, so it is automatic on process exit or after shmdt */
1013     shmctl( p_shm_info->shmid, IPC_RMID, 0 );
1014
1015     return( 0 );
1016 }
1017
1018 /*****************************************************************************
1019  * XVideoDestroyShmImage
1020  *****************************************************************************
1021  * Destroy XImage AND associated data. Detach shared memory segment from
1022  * server and process, then free it. If pointer is NULL, the image won't be
1023  * destroyed (see vout_ManageOutputMethod())
1024  *****************************************************************************/
1025 static void XVideoDestroyShmImage( vout_thread_t *p_vout, XvImage *p_xvimage,
1026                                    XShmSegmentInfo *p_shm_info )
1027 {
1028     /* If pointer is NULL, do nothing */
1029     if( p_xvimage == NULL )
1030     {
1031         return;
1032     }
1033
1034     XSync( p_vout->p_sys->p_display, False );
1035     XShmDetach( p_vout->p_sys->p_display, p_shm_info );/* detach from server */
1036 #if 0
1037     XDestroyImage( p_ximage ); /* XXX */
1038 #endif
1039     XFree( p_xvimage );
1040
1041     if( shmdt( p_shm_info->shmaddr ) )  /* detach shared memory from process */
1042     {
1043         intf_ErrMsg( "vout error: cannot detach shared memory (%s)",
1044                      strerror(errno) );
1045     }
1046 }
1047
1048 /*****************************************************************************
1049  * XVideoEnableScreenSaver: enable screen saver
1050  *****************************************************************************
1051  * This function enable the screen saver on a display after it had been
1052  * disabled by XDisableScreenSaver. Both functions use a counter mechanism to
1053  * know wether the screen saver can be activated or not: if n successive calls
1054  * are made to XDisableScreenSaver, n successive calls to XEnableScreenSaver
1055  * will be required before the screen saver could effectively be activated.
1056  *****************************************************************************/
1057 void XVideoEnableScreenSaver( vout_thread_t *p_vout )
1058 {
1059     intf_DbgMsg( "intf: enabling screen saver" );
1060     XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1061                      p_vout->p_sys->i_ss_interval,
1062                      p_vout->p_sys->i_ss_blanking,
1063                      p_vout->p_sys->i_ss_exposure );
1064
1065     DPMSEnable( p_vout->p_sys->p_display );
1066 }
1067
1068 /*****************************************************************************
1069  * XVideoDisableScreenSaver: disable screen saver
1070  *****************************************************************************
1071  * See XEnableScreenSaver
1072  *****************************************************************************/
1073 void XVideoDisableScreenSaver( vout_thread_t *p_vout )
1074 {
1075     /* Save screen saver informations */
1076     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1077                      &p_vout->p_sys->i_ss_interval,
1078                      &p_vout->p_sys->i_ss_blanking,
1079                      &p_vout->p_sys->i_ss_exposure );
1080
1081     /* Disable screen saver */
1082     intf_DbgMsg( "intf: disabling screen saver" );
1083     XSetScreenSaver( p_vout->p_sys->p_display, 0,
1084                      p_vout->p_sys->i_ss_interval,
1085                      p_vout->p_sys->i_ss_blanking,
1086                      p_vout->p_sys->i_ss_exposure );
1087
1088     DPMSDisable( p_vout->p_sys->p_display );
1089 }
1090
1091 /*****************************************************************************
1092  * X11ToggleMousePointer: hide or show the mouse pointer
1093  *****************************************************************************
1094  * This function hides the X pointer if requested.
1095  *****************************************************************************/
1096 void X11ToggleMousePointer( vout_thread_t *p_vout )
1097 {
1098
1099     if( p_vout->p_sys->b_mouse_pointer_visible )
1100     {
1101         XDefineCursor( p_vout->p_sys->p_display,
1102                        p_vout->p_sys->window,
1103                        p_vout->p_sys->blank_cursor );
1104         p_vout->p_sys->b_mouse_pointer_visible = 0;
1105     }
1106     else
1107     {
1108         XUndefineCursor( p_vout->p_sys->p_display, p_vout->p_sys->window );
1109         p_vout->p_sys->b_mouse_pointer_visible = 1;
1110     }
1111 }
1112
1113 /* This based on some code in SetBufferPicture... At the moment it's only
1114  * used by the xvideo plugin, but others may want to use it. */
1115 static void XVideoOutputCoords( const picture_t *p_pic, const boolean_t scale,
1116                                 const int win_w, const int win_h,
1117                                 int *dx, int *dy, int *w, int *h )
1118 {
1119 }
1120
1121
1122 /*****************************************************************************
1123  * XVideoGetPort: get YUV12 port
1124  *****************************************************************************
1125  *
1126  *****************************************************************************/
1127 static int XVideoGetPort( Display *dpy )
1128 {
1129     XvAdaptorInfo *p_adaptor;
1130     int i_adaptor, i_num_adaptors, i_requested_adaptor;
1131     int i_selected_port;
1132
1133     switch( XvQueryAdaptors( dpy, DefaultRootWindow( dpy ),
1134                              &i_num_adaptors, &p_adaptor ) )
1135     {
1136         case Success:
1137             break;
1138
1139         case XvBadExtension:
1140             intf_WarnMsg( 3, "vout error: XvBadExtension for XvQueryAdaptors" );
1141             return( -1 );
1142
1143         case XvBadAlloc:
1144             intf_WarnMsg( 3, "vout error: XvBadAlloc for XvQueryAdaptors" );
1145             return( -1 );
1146
1147         default:
1148             intf_WarnMsg( 3, "vout error: XvQueryAdaptors failed" );
1149             return( -1 );
1150     }
1151
1152     i_selected_port = -1;
1153     i_requested_adaptor = main_GetIntVariable( VOUT_XVADAPTOR_VAR, -1 );
1154
1155     /* No special xv port has been requested so try all of them */
1156     for( i_adaptor = 0; i_adaptor < i_num_adaptors; ++i_adaptor )
1157     {
1158         int i_port;
1159
1160         /* If we requested an adaptor and it's not this one, we aren't
1161          * interested */
1162         if( i_requested_adaptor != -1 && i_adaptor != i_requested_adaptor )
1163         {
1164             continue;
1165         }
1166
1167         /* If the adaptor doesn't have the required properties, skip it */
1168         if( !( p_adaptor[ i_adaptor ].type & XvInputMask ) ||
1169             !( p_adaptor[ i_adaptor ].type & XvImageMask ) )
1170         {
1171             continue;
1172         }
1173
1174         for( i_port = p_adaptor[i_adaptor].base_id;
1175              i_port < p_adaptor[i_adaptor].base_id
1176                        + p_adaptor[i_adaptor].num_ports;
1177              i_port++ )
1178         {
1179             XvImageFormatValues *p_formats;
1180             int i_format, i_num_formats;
1181
1182             /* If we already found a port, we aren't interested */
1183             if( i_selected_port != -1 )
1184             {
1185                 continue;
1186             }
1187
1188             /* Check that port supports YUV12 planar format... */
1189             p_formats = XvListImageFormats( dpy, i_port, &i_num_formats );
1190
1191             for( i_format = 0; i_format < i_num_formats; i_format++ )
1192             {
1193                 XvEncodingInfo  *p_enc;
1194                 int             i_enc, i_num_encodings;
1195                 XvAttribute     *p_attr;
1196                 int             i_attr, i_num_attributes;
1197
1198                 if( p_formats[ i_format ].id != GUID_YUV12_PLANAR )
1199                 {
1200                     continue;
1201                 }
1202
1203                 /* Found a matching port, print a description of this port */
1204                 i_selected_port = i_port;
1205
1206                 intf_WarnMsg( 3, "vout: XVideoGetPort found adaptor %i port %i",
1207                                  i_adaptor, i_port);
1208                 intf_WarnMsg( 3, "  image format 0x%x (%4.4s) %s supported",
1209                                  p_formats[ i_format ].id,
1210                                  (char *)&p_formats[ i_format ].id,
1211                                  ( p_formats[ i_format ].format
1212                                     == XvPacked ) ? "packed" : "planar" );
1213
1214                 intf_WarnMsg( 4, " encoding list:" );
1215
1216                 if( XvQueryEncodings( dpy, i_port, &i_num_encodings, &p_enc )
1217                      != Success )
1218                 {
1219                     intf_WarnMsg( 4, "  XvQueryEncodings failed" );
1220                     continue;
1221                 }
1222
1223                 for( i_enc = 0; i_enc < i_num_encodings; i_enc++ )
1224                 {
1225                     intf_WarnMsg( 4, "  id=%ld, name=%s, size=%ldx%ld,"
1226                                      " numerator=%d, denominator=%d",
1227                                   p_enc[i_enc].encoding_id, p_enc[i_enc].name,
1228                                   p_enc[i_enc].width, p_enc[i_enc].height,
1229                                   p_enc[i_enc].rate.numerator,
1230                                   p_enc[i_enc].rate.denominator );
1231                 }
1232
1233                 if( p_enc != NULL )
1234                 {
1235                     XvFreeEncodingInfo( p_enc );
1236                 }
1237
1238                 intf_WarnMsg( 4, " attribute list:" );
1239                 p_attr = XvQueryPortAttributes( dpy, i_port,
1240                                                 &i_num_attributes );
1241                 for( i_attr = 0; i_attr < i_num_attributes; i_attr++ )
1242                 {
1243                     intf_WarnMsg( 4,
1244                           "  name=%s, flags=[%s%s ], min=%i, max=%i",
1245                           p_attr[i_attr].name,
1246                           (p_attr[i_attr].flags & XvGettable) ? " get" : "",
1247                           (p_attr[i_attr].flags & XvSettable) ? " set" : "",
1248                           p_attr[i_attr].min_value, p_attr[i_attr].max_value );
1249                 }
1250
1251                 if( p_attr != NULL )
1252                 {
1253                     XFree( p_attr );
1254                 }
1255             }
1256
1257             if( p_formats != NULL )
1258             {
1259                 XFree( p_formats );
1260             }
1261         }
1262     }
1263
1264     if( i_num_adaptors > 0 )
1265     {
1266         XvFreeAdaptorInfo( p_adaptor );
1267     }
1268
1269     if( i_selected_port == -1 )
1270     {
1271         if( i_requested_adaptor == -1 )
1272         {
1273             intf_WarnMsg( 3, "vout: no XVideo port found supporting YUV12" );
1274         }
1275         else
1276         {
1277             intf_WarnMsg( 3, "vout: XVideo adaptor %i does not support YUV12",
1278                              i_requested_adaptor );
1279         }
1280     }
1281
1282     return( i_selected_port );
1283 }
1284
1285
1286 /*****************************************************************************
1287  * XVideoDisplay: display image
1288  *****************************************************************************
1289  * This function displays the image stored in p_vout->p_sys->p_xvimage.
1290  * The image is scaled to fit in the output window (and to have the correct
1291  * aspect ratio).
1292  *****************************************************************************/
1293 static void XVideoDisplay( vout_thread_t *p_vout )
1294 {
1295     int         i_dest_width, i_dest_height;
1296     int         i_dest_x, i_dest_y;
1297
1298     if( !p_vout->p_sys->p_xvimage )
1299     {
1300         return;
1301     }
1302
1303     i_dest_height = p_vout->p_sys->i_window_height >
1304                         p_vout->p_rendered_pic->i_height
1305                   ? p_vout->p_sys->i_window_height
1306                   : p_vout->p_rendered_pic->i_height;
1307     i_dest_width = p_vout->p_sys->i_window_width >
1308                         p_vout->p_rendered_pic->i_width
1309                  ? p_vout->p_sys->i_window_width
1310                  : p_vout->p_rendered_pic->i_width;
1311
1312     if( p_vout->b_scale )
1313     {
1314         int   i_ratio = 900 * i_dest_width / i_dest_height;
1315
1316         switch( p_vout->p_rendered_pic->i_aspect_ratio )
1317         {
1318             case AR_3_4_PICTURE:
1319                 if( i_ratio < 1200 )
1320                 {
1321                     i_dest_width = i_dest_height * 4 / 3;
1322                 }
1323                 else
1324                 {
1325                     i_dest_height = i_dest_width * 3 / 4;
1326                 }
1327                 i_ratio = 1200;
1328                 break;
1329
1330             case AR_16_9_PICTURE:
1331                 if( i_ratio < 1600 )
1332                 {
1333                     i_dest_width = i_dest_height * 16 / 9;
1334                 }
1335                 else
1336                 {
1337                     i_dest_height = i_dest_width * 9 / 16;
1338                 }
1339                 i_ratio = 1600;
1340                 break;
1341
1342             case AR_221_1_PICTURE:
1343                 if( i_ratio < 1989 )
1344                 {
1345                     i_dest_width = i_dest_height * 221 / 100;
1346                 }
1347                 else
1348                 {
1349                     i_dest_height = i_dest_width * 100 / 221;
1350                 }
1351                 i_ratio = 1989;
1352                 break;
1353
1354             case AR_SQUARE_PICTURE:
1355             default:
1356                 if( i_ratio < 900 )
1357                 {
1358                     i_dest_width = i_dest_height * p_vout->p_rendered_pic->i_width / p_vout->p_rendered_pic->i_height;
1359                 }
1360                 else
1361                 {
1362                     i_dest_height = i_dest_width * p_vout->p_rendered_pic->i_height / p_vout->p_rendered_pic->i_width;
1363                 }
1364                 i_ratio = 900;
1365                 break;
1366         }
1367
1368         if( i_dest_width >
1369             DisplayWidth( p_vout->p_sys->p_display, p_vout->p_sys->i_screen ) )
1370         {
1371             i_dest_width = DisplayWidth( p_vout->p_sys->p_display,
1372                                          p_vout->p_sys->i_screen );
1373             i_dest_height = 900 * i_dest_width / i_ratio;
1374         }
1375         else if( i_dest_height >
1376             DisplayHeight( p_vout->p_sys->p_display, p_vout->p_sys->i_screen ) )
1377         {
1378             i_dest_height = DisplayHeight( p_vout->p_sys->p_display,
1379                                            p_vout->p_sys->i_screen );
1380             i_dest_width = i_ratio * i_dest_height / 900;
1381         }
1382     }
1383
1384     XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->xv_port,
1385                    p_vout->p_sys->yuv_window, p_vout->p_sys->gc,
1386                    p_vout->p_sys->p_xvimage,
1387                    0 /*src_x*/, 0 /*src_y*/,
1388                    p_vout->p_rendered_pic->i_width,
1389                    p_vout->p_rendered_pic->i_height,
1390                    0 /*dest_x*/, 0 /*dest_y*/, i_dest_width, i_dest_height,
1391                    False );
1392
1393     /* YUV window */
1394     XResizeWindow( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window,
1395                    i_dest_width, i_dest_height );
1396
1397     /* Root window */
1398     if( ( ( i_dest_width != p_vout->p_sys->i_window_width ) ||
1399           ( i_dest_height != p_vout->p_sys->i_window_height ) ) &&
1400         ! p_vout->b_fullscreen )
1401     {
1402         p_vout->p_sys->i_window_width = i_dest_width;
1403         p_vout->p_sys->i_window_height = i_dest_height;
1404 //        p_vout->i_changes |= VOUT_SIZE_CHANGE;
1405         XResizeWindow( p_vout->p_sys->p_display, p_vout->p_sys->window,
1406                        i_dest_width, i_dest_height );
1407     }
1408
1409     /* Set picture position */
1410     i_dest_x = (p_vout->p_sys->i_window_width - i_dest_width) / 2;
1411     i_dest_y = (p_vout->p_sys->i_window_height - i_dest_height) / 2;
1412
1413     XMoveWindow( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window,
1414                  i_dest_x, i_dest_y );
1415
1416     /* Send the order to the X server */
1417     XSync( p_vout->p_sys->p_display, False );
1418 }
1419
1420 #if 0
1421 /*****************************************************************************
1422  * XVideoSetAttribute
1423  *****************************************************************************
1424  * This function can be used to set attributes, e.g. XV_BRIGHTNESS and
1425  * XV_CONTRAST. "f_value" should be in the range of 0 to 1.
1426  *****************************************************************************/
1427 static void XVideoSetAttribute( vout_thread_t *p_vout,
1428                                 char *attr_name, float f_value )
1429 {
1430     int             i_attrib;
1431     XvAttribute    *p_attrib;
1432     Display        *p_dpy   = p_vout->p_sys->p_display;
1433     int             xv_port = p_vout->p_sys->xv_port;
1434
1435     p_attrib = XvQueryPortAttributes( p_dpy, xv_port, &i_attrib );
1436
1437     do
1438     {
1439         i_attrib--;
1440
1441         if( i_attrib >= 0 && !strcmp( p_attrib[ i_attrib ].name, attr_name ) )
1442         {
1443             int i_sv = f_value * ( p_attrib[ i_attrib ].max_value
1444                                     - p_attrib[ i_attrib ].min_value + 1 )
1445                         + p_attrib[ i_attrib ].min_value;
1446
1447             XvSetPortAttribute( p_dpy, xv_port,
1448                             XInternAtom( p_dpy, attr_name, False ), i_sv );
1449             break;
1450         }
1451
1452     } while( i_attrib > 0 );
1453
1454     if( p_attrib )
1455         XFree( p_attrib );
1456 }
1457 #endif
1458