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

   1 /*****************************************************************************
   2  * xcommon.c: Functions common to the X11 and XVideo plugins
   3  *****************************************************************************
   4  * Copyright (C) 1998-2001 VideoLAN
   5  * $Id: xcommon.c,v 1.4 2002/01/02 14:37:42 sam Exp $
   6  *
   7  * Authors: Vincent Seguin <seguin@via.ecp.fr>
   8  *          Samuel Hocevar <sam@zoy.org>
   9  *          David Kennedy <dkennedy@tinytoad.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #include <errno.h>                                                 /* ENOMEM */
  30 #include <stdlib.h>                                                /* free() */
  31 #include <string.h>                                            /* strerror() */
  32
  33 #include <videolan/vlc.h>
  34
  35 #ifdef HAVE_MACHINE_PARAM_H
  36 /* BSD */
  37 #include <machine/param.h>
  38 #include <sys/types.h>                                     /* typedef ushort */
  39 #include <sys/ipc.h>
  40 #endif
  41
  42 #ifndef WIN32
  43 #include <netinet/in.h>                               /* BSD: struct in_addr */
  44 #endif
  45
  46 #include <sys/shm.h>                                   /* shmget(), shmctl() */
  47 #include <X11/Xlib.h>
  48 #include <X11/Xutil.h>
  49 #include <X11/keysym.h>
  50 #include <X11/extensions/XShm.h>
  51 #include <X11/extensions/dpms.h>
  52
  53 #ifdef MODULE_NAME_IS_xvideo
  54 #   include <X11/extensions/Xv.h>
  55 #   include <X11/extensions/Xvlib.h>
  56 #endif
  57
  58 #include "video.h"
  59 #include "video_output.h"
  60 #include "xcommon.h"
  61
  62 #include "interface.h"
  63 #include "netutils.h"                                 /* network_ChannelJoin */
  64
  65 #include "stream_control.h"                 /* needed by input_ext-intf.h... */
  66 #include "input_ext-intf.h"
  67
  68 #ifdef MODULE_NAME_IS_xvideo
  69 #   define IMAGE_TYPE     XvImage
  70 #   define EXTRA_ARGS     int i_xvport, int i_format
  71 #   define EXTRA_ARGS_SHM int i_xvport, int i_format, XShmSegmentInfo *p_shm
  72 #   define DATA_SIZE(p)   (p)->data_size
  73 #   define IMAGE_FREE     XFree      /* There is nothing like XvDestroyImage */
  74 #else
  75 #   define IMAGE_TYPE     XImage
  76 #   define EXTRA_ARGS     Visual *p_visual, int i_depth, int i_bytes_per_pixel
  77 #   define EXTRA_ARGS_SHM Visual *p_visual, int i_depth, XShmSegmentInfo *p_shm
  78 #   define DATA_SIZE(p)   ((p)->bytes_per_line * (p)->height)
  79 #   define IMAGE_FREE     XDestroyImage
  80 #endif
  81
  82 /*****************************************************************************
  83  * Local prototypes
  84  *****************************************************************************/
  85 static int  vout_Probe     ( probedata_t * );
  86 static int  vout_Create    ( vout_thread_t * );
  87 static void vout_Destroy   ( vout_thread_t * );
  88 static void vout_Display   ( vout_thread_t *, picture_t * );
  89 static int  vout_Manage    ( vout_thread_t * );
  90 static int  vout_Init      ( vout_thread_t * );
  91 static void vout_End       ( vout_thread_t * );
  92
  93 static int  InitDisplay    ( vout_thread_t * );
  94
  95 static int  CreateWindow   ( vout_thread_t * );
  96 static void DestroyWindow  ( vout_thread_t * );
  97
  98 static int  NewPicture     ( vout_thread_t *, picture_t * );
  99 static void FreePicture    ( vout_thread_t *, picture_t * );
 100
 101 static IMAGE_TYPE *CreateImage    ( Display *, EXTRA_ARGS, int, int );
 102 static IMAGE_TYPE *CreateShmImage ( Display *, EXTRA_ARGS_SHM, int, int );
 103
 104 static void ToggleFullScreen      ( vout_thread_t * );
 105
 106 static void EnableXScreenSaver    ( vout_thread_t * );
 107 static void DisableXScreenSaver   ( vout_thread_t * );
 108
 109 static void CreateCursor   ( vout_thread_t * );
 110 static void DestroyCursor  ( vout_thread_t * );
 111 static void ToggleCursor   ( vout_thread_t * );
 112
 113 #ifdef MODULE_NAME_IS_xvideo
 114 static int  XVideoGetPort         ( Display *, int );
 115 static void XVideoReleasePort     ( Display *, int );
 116 #endif
 117
 118 /*****************************************************************************
 119  * vout_sys_t: video output method descriptor
 120  *****************************************************************************
 121  * This structure is part of the video output thread descriptor.
 122  * It describes the X11 and XVideo specific properties of an output thread.
 123  *****************************************************************************/
 124 typedef struct vout_sys_s
 125 {
 126     /* Internal settings and properties */
 127     Display *           p_display;                        /* display pointer */
 128
 129     Visual *            p_visual;                          /* visual pointer */
 130     int                 i_screen;                           /* screen number */
 131     Window              window;                               /* root window */
 132     GC                  gc;              /* graphic context instance handler */
 133
 134     boolean_t           b_shm;               /* shared memory extension flag */
 135
 136 #ifdef MODULE_NAME_IS_xvideo
 137     Window              yuv_window;   /* sub-window for displaying yuv video
 138                                                                         data */
 139     int                 i_xvport;
 140 #else
 141     Colormap            colormap;               /* colormap used (8bpp only) */
 142
 143     int                 i_screen_depth;
 144     int                 i_bytes_per_pixel;
 145     int                 i_bytes_per_line;
 146     int                 i_red_mask;
 147     int                 i_green_mask;
 148     int                 i_blue_mask;
 149 #endif
 150
 151     /* X11 generic properties */
 152     Atom                wm_protocols;
 153     Atom                wm_delete_window;
 154
 155     int                 i_width;                     /* width of main window */
 156     int                 i_height;                   /* height of main window */
 157
 158     /* Backup of window position and size before fullscreen switch */
 159     int                 i_width_backup;
 160     int                 i_height_backup;
 161     int                 i_xpos_backup;
 162     int                 i_ypos_backup;
 163
 164     /* Screen saver properties */
 165     int                 i_ss_timeout;                             /* timeout */
 166     int                 i_ss_interval;           /* interval between changes */
 167     int                 i_ss_blanking;                      /* blanking mode */
 168     int                 i_ss_exposure;                      /* exposure mode */
 169     BOOL                b_ss_dpms;                              /* DPMS mode */
 170
 171     /* Mouse pointer properties */
 172     boolean_t           b_mouse_pointer_visible;
 173     mtime_t             i_time_mouse_last_moved; /* used to auto-hide pointer*/
 174     Cursor              blank_cursor;                   /* the hidden cursor */
 175     Pixmap              cursor_pixmap;
 176
 177 } vout_sys_t;
 178
 179 /*****************************************************************************
 180  * picture_sys_t: direct buffer method descriptor
 181  *****************************************************************************
 182  * This structure is part of the picture descriptor, it describes the
 183  * XVideo specific properties of a direct buffer.
 184  *****************************************************************************/
 185 typedef struct picture_sys_s
 186 {
 187     IMAGE_TYPE *        p_image;
 188
 189     XShmSegmentInfo     shminfo;       /* shared memory zone information */
 190
 191 } picture_sys_t;
 192
 193 /*****************************************************************************
 194  * mwmhints_t: window manager hints
 195  *****************************************************************************
 196  * Fullscreen needs to be able to hide the wm decorations so we provide
 197  * this structure to make it easier.
 198  *****************************************************************************/
 199 #define MWM_HINTS_DECORATIONS   (1L << 1)
 200 #define PROP_MWM_HINTS_ELEMENTS 5
 201 typedef struct mwmhints_s
 202 {
 203     u32 flags;
 204     u32 functions;
 205     u32 decorations;
 206     s32 input_mode;
 207     u32 status;
 208 } mwmhints_t;
 209
 210 /*****************************************************************************
 211  * Chroma defines
 212  *****************************************************************************/
 213 #ifdef MODULE_NAME_IS_xvideo
 214 #   define GUID_YUV12_PLANAR 0x32315659
 215 #   define MAX_DIRECTBUFFERS 5
 216 #else
 217 #   define MAX_DIRECTBUFFERS 2
 218 #endif
 219
 220 /*****************************************************************************
 221  * Seeking function TODO: put this in a generic location !
 222  *****************************************************************************/
 223 static __inline__ void vout_Seek( off_t i_seek )
 224 {
 225 #define area p_main->p_intf->p_input->stream.p_selected_area
 226     off_t i_tell = area->i_tell;
 227
 228     i_tell += i_seek * (off_t)50 * p_main->p_intf->p_input->stream.i_mux_rate;
 229
 230     i_tell = ( i_tell <= 0/*area->i_start*/ ) ? 0/*area->i_start*/
 231            : ( i_tell >= area->i_size ) ? area->i_size
 232            : i_tell;
 233
 234     input_Seek( p_main->p_intf->p_input, i_tell );
 235 #undef area
 236 }
 237
 238 /*****************************************************************************
 239  * Functions exported as capabilities. They are declared as static so that
 240  * we don't pollute the namespace too much.
 241  *****************************************************************************/
 242 void _M( vout_getfunctions )( function_list_t * p_function_list )
 243 {
 244     p_function_list->pf_probe = vout_Probe;
 245     p_function_list->functions.vout.pf_create     = vout_Create;
 246     p_function_list->functions.vout.pf_init       = vout_Init;
 247     p_function_list->functions.vout.pf_end        = vout_End;
 248     p_function_list->functions.vout.pf_destroy    = vout_Destroy;
 249     p_function_list->functions.vout.pf_manage     = vout_Manage;
 250     p_function_list->functions.vout.pf_display    = vout_Display;
 251     p_function_list->functions.vout.pf_setpalette = NULL;
 252 }
 253
 254 /*****************************************************************************
 255  * vout_Probe: probe the video driver and return a score
 256  *****************************************************************************
 257  * This function tries to initialize SDL and returns a score to the
 258  * plugin manager so that it can select the best plugin.
 259  *****************************************************************************/
 260 static int vout_Probe( probedata_t *p_data )
 261 {
 262     Display *p_display;                                   /* display pointer */
 263     char    *psz_display;
 264 #ifdef MODULE_NAME_IS_xvideo
 265     int      i_xvport;
 266 #endif
 267
 268     /* Open display, unsing 'vlc_display' or DISPLAY environment variable */
 269     psz_display = XDisplayName( main_GetPszVariable(VOUT_DISPLAY_VAR, NULL) );
 270     p_display = XOpenDisplay( psz_display );
 271     if( p_display == NULL )                                         /* error */
 272     {
 273         intf_WarnMsg( 3, "vout: cannot open display %s", psz_display );
 274         return( 0 );
 275     }
 276
 277 #ifdef MODULE_NAME_IS_xvideo
 278     /* Check that there is an available XVideo port */
 279     i_xvport = XVideoGetPort( p_display, GUID_YUV12_PLANAR );
 280     if( i_xvport < 0 )
 281     {
 282         intf_WarnMsg( 3, "vout: no XVideo port available" );
 283         XCloseDisplay( p_display );
 284         return( 0 );
 285     }
 286     XVideoReleasePort( p_display, i_xvport );
 287 #endif
 288
 289     /* Clean-up everyting */
 290     XCloseDisplay( p_display );
 291
 292 #ifdef MODULE_NAME_IS_xvideo
 293     return( 150 );
 294 #else
 295     return( 50 );
 296 #endif
 297 }
 298
 299 /*****************************************************************************
 300  * vout_Create: allocate X11 video thread output method
 301  *****************************************************************************
 302  * This function allocate and initialize a X11 vout method. It uses some of the
 303  * vout properties to choose the window size, and change them according to the
 304  * actual properties of the display.
 305  *****************************************************************************/
 306 static int vout_Create( vout_thread_t *p_vout )
 307 {
 308     char *psz_display;
 309
 310     /* Allocate structure */
 311     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 312     if( p_vout->p_sys == NULL )
 313     {
 314         intf_ErrMsg( "vout error: %s", strerror(ENOMEM) );
 315         return( 1 );
 316     }
 317
 318     /* Open display, unsing 'vlc_display' or DISPLAY environment variable */
 319     psz_display = XDisplayName( main_GetPszVariable( VOUT_DISPLAY_VAR, NULL ) );
 320     p_vout->p_sys->p_display = XOpenDisplay( psz_display );
 321
 322     if( p_vout->p_sys->p_display == NULL )                          /* error */
 323     {
 324         intf_ErrMsg( "vout error: cannot open display %s", psz_display );
 325         free( p_vout->p_sys );
 326         return( 1 );
 327     }
 328     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
 329
 330 #ifdef MODULE_NAME_IS_xvideo
 331     /* Check that we have access to an XVideo port */
 332     p_vout->p_sys->i_xvport = XVideoGetPort( p_vout->p_sys->p_display,
 333                                              GUID_YUV12_PLANAR );
 334     if( p_vout->p_sys->i_xvport < 0 )
 335     {
 336         intf_ErrMsg( "vout error: cannot get XVideo port" );
 337         XCloseDisplay( p_vout->p_sys->p_display );
 338         free( p_vout->p_sys );
 339         return 1;
 340     }
 341 #endif
 342
 343     /* Create blank cursor (for mouse cursor autohiding) */
 344     p_vout->p_sys->b_mouse_pointer_visible = 1;
 345     CreateCursor( p_vout );
 346
 347     /* Spawn base window - this window will include the video output window,
 348      * but also command buttons, subtitles and other indicators */
 349     if( CreateWindow( p_vout ) )
 350     {
 351         intf_ErrMsg( "vout error: cannot create X11 window" );
 352         DestroyCursor( p_vout );
 353         XCloseDisplay( p_vout->p_sys->p_display );
 354         free( p_vout->p_sys );
 355         return( 1 );
 356     }
 357
 358     /* Open and initialize device. */
 359     if( InitDisplay( p_vout ) )
 360     {
 361         intf_ErrMsg( "vout error: cannot initialize X11 display" );
 362         DestroyCursor( p_vout );
 363         DestroyWindow( p_vout );
 364         XCloseDisplay( p_vout->p_sys->p_display );
 365         free( p_vout->p_sys );
 366         return( 1 );
 367     }
 368
 369     /* Disable screen saver and return */
 370     DisableXScreenSaver( p_vout );
 371
 372     return( 0 );
 373 }
 374
 375 /*****************************************************************************
 376  * vout_Destroy: destroy X11 video thread output method
 377  *****************************************************************************
 378  * Terminate an output method created by vout_CreateOutputMethod
 379  *****************************************************************************/
 380 static void vout_Destroy( vout_thread_t *p_vout )
 381 {
 382     /* Restore cursor if it was blanked */
 383     if( !p_vout->p_sys->b_mouse_pointer_visible )
 384     {
 385         ToggleCursor( p_vout );
 386     }
 387
 388 #ifdef MODULE_NAME_IS_xvideo
 389     XVideoReleasePort( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport );
 390 #else
 391 #if 0
 392     /* Destroy colormap */
 393     if( p_vout->p_sys->i_screen_depth == 8 )
 394     {
 395         XFreeColormap( p_vout->p_sys->p_display, p_vout->p_sys->colormap );
 396     }
 397 #endif
 398 #endif
 399
 400     DestroyCursor( p_vout );
 401     EnableXScreenSaver( p_vout );
 402     DestroyWindow( p_vout );
 403
 404     XCloseDisplay( p_vout->p_sys->p_display );
 405
 406     /* Destroy structure */
 407     free( p_vout->p_sys );
 408 }
 409
 410 /*****************************************************************************
 411  * vout_Init: initialize X11 video thread output method
 412  *****************************************************************************
 413  * This function create the XImages needed by the output thread. It is called
 414  * at the beginning of the thread, but also each time the window is resized.
 415  *****************************************************************************/
 416 static int vout_Init( vout_thread_t *p_vout )
 417 {
 418     int i_index;
 419     picture_t *p_pic;
 420
 421     I_OUTPUTPICTURES = 0;
 422
 423 #ifdef MODULE_NAME_IS_xvideo
 424     /* Initialize the output structure */
 425     switch( p_vout->render.i_chroma )
 426     {
 427         case FOURCC_I420:
 428         case FOURCC_IYUV:
 429         case FOURCC_YV12:
 430             p_vout->output.i_chroma = p_vout->render.i_chroma;
 431             p_vout->output.i_width  = p_vout->render.i_width;
 432             p_vout->output.i_height = p_vout->render.i_height;
 433             p_vout->output.i_aspect = p_vout->render.i_aspect;
 434             break;
 435
 436         default:
 437             return( 0 );
 438     }
 439 #else
 440     /* Initialize the output structure: RGB with square pixels, whatever
 441      * the input format is, since it's the only format we know */
 442     switch( p_vout->p_sys->i_screen_depth )
 443     {
 444         case 8: /* FIXME: set the palette */
 445             p_vout->output.i_chroma = FOURCC_BI_RGB | DEPTH_8BPP; break;
 446         case 15:
 447             p_vout->output.i_chroma = FOURCC_BI_BITFIELDS | DEPTH_15BPP; break;
 448         case 16:
 449             p_vout->output.i_chroma = FOURCC_BI_BITFIELDS | DEPTH_16BPP; break;
 450         case 24:
 451             p_vout->output.i_chroma = FOURCC_BI_BITFIELDS | DEPTH_24BPP; break;
 452         case 32:
 453             p_vout->output.i_chroma = FOURCC_BI_BITFIELDS | DEPTH_32BPP; break;
 454         default:
 455             intf_ErrMsg( "vout error: unknown screen depth" );
 456             return( 0 );
 457     }
 458
 459     p_vout->output.i_width = p_vout->p_sys->i_width;
 460     p_vout->output.i_height = p_vout->p_sys->i_height;
 461
 462     /* Assume we have square pixels */
 463     p_vout->output.i_aspect = p_vout->p_sys->i_width
 464                                * VOUT_ASPECT_FACTOR / p_vout->p_sys->i_height;
 465 #endif
 466
 467     /* Try to initialize up to MAX_DIRECTBUFFERS direct buffers */
 468     while( I_OUTPUTPICTURES < MAX_DIRECTBUFFERS )
 469     {
 470         p_pic = NULL;
 471
 472         /* Find an empty picture slot */
 473         for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )
 474         {
 475             if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )
 476             {
 477                 p_pic = p_vout->p_picture + i_index;
 478                 break;
 479             }
 480         }
 481
 482         /* Allocate the picture */
 483         if( p_pic == NULL || NewPicture( p_vout, p_pic ) )
 484         {
 485             break;
 486         }
 487
 488         p_pic->i_status        = DESTROYED_PICTURE;
 489         p_pic->i_type          = DIRECT_PICTURE;
 490
 491         p_pic->i_left_margin   =
 492         p_pic->i_right_margin  =
 493         p_pic->i_top_margin    =
 494         p_pic->i_bottom_margin = 0;
 495
 496         PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;
 497
 498         I_OUTPUTPICTURES++;
 499     }
 500
 501     return( 0 );
 502 }
 503
 504 /*****************************************************************************
 505  * vout_Display: displays previously rendered output
 506  *****************************************************************************
 507  * This function sends the currently rendered image to X11 server.
 508  * (The Xv extension takes care of "double-buffering".)
 509  *****************************************************************************/
 510 static void vout_Display( vout_thread_t *p_vout, picture_t *p_pic )
 511 {
 512     int i_width, i_height, i_x, i_y;
 513
 514     vout_PlacePicture( p_vout, p_vout->p_sys->i_width, p_vout->p_sys->i_height,
 515                        &i_x, &i_y, &i_width, &i_height );
 516
 517     if( p_vout->p_sys->b_shm )
 518     {
 519         /* Display rendered image using shared memory extension */
 520 #ifdef MODULE_NAME_IS_xvideo
 521         XvShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
 522                        p_vout->p_sys->yuv_window, p_vout->p_sys->gc,
 523                        p_pic->p_sys->p_image, 0 /*src_x*/, 0 /*src_y*/,
 524                        p_vout->output.i_width, p_vout->output.i_height,
 525                        0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height,
 526                        False /* Don't put True here or you'll waste your CPU */ );
 527 #else
 528         XShmPutImage( p_vout->p_sys->p_display, p_vout->p_sys->window,
 529                       p_vout->p_sys->gc, p_pic->p_sys->p_image,
 530                       0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
 531                       p_vout->output.i_width, p_vout->output.i_height,
 532                       False /* Don't put True here ! */ );
 533 #endif
 534     }
 535     else
 536     {
 537         /* Use standard XPutImage -- this is gonna be slow ! */
 538 #ifdef MODULE_NAME_IS_xvideo
 539         XvPutImage( p_vout->p_sys->p_display, p_vout->p_sys->i_xvport,
 540                     p_vout->p_sys->yuv_window, p_vout->p_sys->gc,
 541                     p_pic->p_sys->p_image, 0 /*src_x*/, 0 /*src_y*/,
 542                     p_vout->output.i_width, p_vout->output.i_height,
 543                     0 /*dest_x*/, 0 /*dest_y*/, i_width, i_height );
 544 #else
 545         XPutImage( p_vout->p_sys->p_display, p_vout->p_sys->window,
 546                    p_vout->p_sys->gc, p_pic->p_sys->p_image,
 547                    0 /*src_x*/, 0 /*src_y*/, 0 /*dest_x*/, 0 /*dest_y*/,
 548                    p_vout->output.i_width, p_vout->output.i_height );
 549 #endif
 550     }
 551
 552     /* Make sure the command is sent now */
 553     XFlush( p_vout->p_sys->p_display );
 554 }
 555
 556 /*****************************************************************************
 557  * vout_Manage: handle X11 events
 558  *****************************************************************************
 559  * This function should be called regularly by video output thread. It manages
 560  * X11 events and allows window resizing. It returns a non null value on
 561  * error.
 562  *****************************************************************************/
 563 static int vout_Manage( vout_thread_t *p_vout )
 564 {
 565     XEvent      xevent;                                         /* X11 event */
 566     boolean_t   b_resized;                        /* window has been resized */
 567     char        i_key;                                    /* ISO Latin-1 key */
 568     KeySym      x_key_symbol;
 569
 570     /* Handle X11 events: ConfigureNotify events are parsed to know if the
 571      * output window's size changed, MapNotify and UnmapNotify to know if the
 572      * window is mapped (and if the display is useful), and ClientMessages
 573      * to intercept window destruction requests */
 574
 575     b_resized = 0;
 576     while( XCheckWindowEvent( p_vout->p_sys->p_display, p_vout->p_sys->window,
 577                               StructureNotifyMask | KeyPressMask |
 578                               ButtonPressMask | ButtonReleaseMask |
 579                               PointerMotionMask | Button1MotionMask , &xevent )
 580            == True )
 581     {
 582         /* ConfigureNotify event: prepare  */
 583         if( (xevent.type == ConfigureNotify)
 584           && ((xevent.xconfigure.width != p_vout->p_sys->i_width)
 585              || (xevent.xconfigure.height != p_vout->p_sys->i_height)) )
 586         {
 587             /* Update dimensions */
 588             b_resized = 1;
 589             p_vout->i_changes |= VOUT_SIZE_CHANGE;
 590             p_vout->p_sys->i_width = xevent.xconfigure.width;
 591             p_vout->p_sys->i_height = xevent.xconfigure.height;
 592         }
 593         /* MapNotify event: change window status and disable screen saver */
 594         else if( xevent.type == MapNotify)
 595         {
 596             if( (p_vout != NULL) && !p_vout->b_active )
 597             {
 598                 DisableXScreenSaver( p_vout );
 599                 p_vout->b_active = 1;
 600             }
 601         }
 602         /* UnmapNotify event: change window status and enable screen saver */
 603         else if( xevent.type == UnmapNotify )
 604         {
 605             if( (p_vout != NULL) && p_vout->b_active )
 606             {
 607                 EnableXScreenSaver( p_vout );
 608                 p_vout->b_active = 0;
 609             }
 610         }
 611         /* Keyboard event */
 612         else if( xevent.type == KeyPress )
 613         {
 614             /* We may have keys like F1 trough F12, ESC ... */
 615             x_key_symbol = XKeycodeToKeysym( p_vout->p_sys->p_display,
 616                                              xevent.xkey.keycode, 0 );
 617             switch( x_key_symbol )
 618             {
 619                  case XK_Escape:
 620                      p_main->p_intf->b_die = 1;
 621                      break;
 622                  case XK_Menu:
 623                      p_main->p_intf->b_menu_change = 1;
 624                      break;
 625                  case XK_Left:
 626                      vout_Seek( -5 );
 627                      break;
 628                  case XK_Right:
 629                      vout_Seek( 5 );
 630                      break;
 631                  case XK_Up:
 632                      vout_Seek( 60 );
 633                      break;
 634                  case XK_Down:
 635                      vout_Seek( -60 );
 636                      break;
 637                  case XK_Home:
 638                      input_Seek( p_main->p_intf->p_input,
 639                      p_main->p_intf->p_input->stream.p_selected_area->i_start );
 640                      break;
 641                  case XK_End:
 642                      input_Seek( p_main->p_intf->p_input,
 643                      p_main->p_intf->p_input->stream.p_selected_area->i_size );
 644                      break;
 645                  case XK_Page_Up:
 646                      vout_Seek( 900 );
 647                      break;
 648                  case XK_Page_Down:
 649                      vout_Seek( -900 );
 650                      break;
 651                  case XK_space:
 652                      input_SetStatus( p_main->p_intf->p_input,
 653                                       INPUT_STATUS_PAUSE );
 654                      break;
 655
 656                  default:
 657                      /* "Normal Keys"
 658                       * The reason why I use this instead of XK_0 is that
 659                       * with XLookupString, we don't have to care about
 660                       * keymaps. */
 661
 662                     if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
 663                     {
 664                         /* FIXME: handle stuff here */
 665                         switch( i_key )
 666                         {
 667                         case 'q':
 668                         case 'Q':
 669                             p_main->p_intf->b_die = 1;
 670                             break;
 671                         case 'f':
 672                         case 'F':
 673                             p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
 674                             break;
 675
 676                         case '0': network_ChannelJoin( 0 ); break;
 677                         case '1': network_ChannelJoin( 1 ); break;
 678                         case '2': network_ChannelJoin( 2 ); break;
 679                         case '3': network_ChannelJoin( 3 ); break;
 680                         case '4': network_ChannelJoin( 4 ); break;
 681                         case '5': network_ChannelJoin( 5 ); break;
 682                         case '6': network_ChannelJoin( 6 ); break;
 683                         case '7': network_ChannelJoin( 7 ); break;
 684                         case '8': network_ChannelJoin( 8 ); break;
 685                         case '9': network_ChannelJoin( 9 ); break;
 686
 687                         default:
 688                             intf_DbgMsg( "vout: unhandled key '%c' (%i)",
 689                                          (char)i_key, i_key );
 690                             break;
 691                         }
 692                     }
 693                 break;
 694             }
 695         }
 696         /* Mouse click */
 697         else if( xevent.type == ButtonPress )
 698         {
 699             switch( ((XButtonEvent *)&xevent)->button )
 700             {
 701                 case Button1:
 702                     /* In this part we will eventually manage
 703                      * clicks for DVD navigation for instance. For the
 704                      * moment just pause the stream. */
 705                     input_SetStatus( p_main->p_intf->p_input,
 706                                      INPUT_STATUS_PAUSE );
 707                     break;
 708
 709                 case Button4:
 710                     vout_Seek( 15 );
 711                     break;
 712
 713                 case Button5:
 714                     vout_Seek( -15 );
 715                     break;
 716             }
 717         }
 718         /* Mouse release */
 719         else if( xevent.type == ButtonRelease )
 720         {
 721             switch( ((XButtonEvent *)&xevent)->button )
 722             {
 723                 case Button3:
 724                     /* FIXME: need locking ! */
 725                     p_main->p_intf->b_menu_change = 1;
 726                     break;
 727             }
 728         }
 729         /* Mouse move */
 730         else if( xevent.type == MotionNotify )
 731         {
 732             p_vout->p_sys->i_time_mouse_last_moved = mdate();
 733             if( ! p_vout->p_sys->b_mouse_pointer_visible )
 734             {
 735                 ToggleCursor( p_vout );
 736             }
 737         }
 738         /* Other event */
 739         else
 740         {
 741             intf_WarnMsg( 3, "vout: unhandled event %d received", xevent.type );
 742         }
 743     }
 744
 745 #ifdef MODULE_NAME_IS_xvideo
 746     /* Handle events for YUV video output sub-window */
 747     while( XCheckWindowEvent( p_vout->p_sys->p_display,
 748                               p_vout->p_sys->yuv_window,
 749                               ExposureMask, &xevent ) == True )
 750     {
 751         /* Window exposed (only handled if stream playback is paused) */
 752         if( xevent.type == Expose )
 753         {
 754             if( ((XExposeEvent *)&xevent)->count == 0 )
 755             {
 756                 /* (if this is the last a collection of expose events...) */
 757                 if( p_main->p_intf->p_input != NULL )
 758                 {
 759                     if( PAUSE_S ==
 760                             p_main->p_intf->p_input->stream.control.i_status )
 761                     {
 762 /*                        XVideoDisplay( p_vout )*/;
 763                     }
 764                 }
 765             }
 766         }
 767     }
 768 #endif
 769
 770     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
 771      * are handled - according to the man pages, the format is always 32
 772      * in this case */
 773     while( XCheckTypedEvent( p_vout->p_sys->p_display,
 774                              ClientMessage, &xevent ) )
 775     {
 776         if( (xevent.xclient.message_type == p_vout->p_sys->wm_protocols)
 777             && (xevent.xclient.data.l[0] == p_vout->p_sys->wm_delete_window ) )
 778         {
 779             p_main->p_intf->b_die = 1;
 780         }
 781         else
 782         {
 783             intf_DbgMsg( "vout: unhandled ClientMessage received" );
 784         }
 785     }
 786
 787     /*
 788      * Fullscreen Change
 789      */
 790     if ( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE )
 791     {
 792         ToggleFullScreen( p_vout );
 793         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 794
 795     }
 796
 797
 798 #ifdef MODULE_NAME_IS_x11
 799     /*
 800      * Handle vout window resizing
 801      */
 802 #if 0
 803     if( b_resized )
 804     {
 805         /* If interface window has been resized, change vout size */
 806         intf_DbgMsg( "vout: resizing output window" );
 807         p_vout->i_width =  p_vout->p_sys->i_width;
 808         p_vout->i_height = p_vout->p_sys->i_height;
 809         p_vout->i_changes |= VOUT_SIZE_CHANGE;
 810     }
 811     else if( (p_vout->i_width  != p_vout->p_sys->i_width) ||
 812              (p_vout->i_height != p_vout->p_sys->i_height) )
 813     {
 814         /* If video output size has changed, change interface window size */
 815         intf_DbgMsg( "vout: resizing output window" );
 816         p_vout->p_sys->i_width =    p_vout->i_width;
 817         p_vout->p_sys->i_height =   p_vout->i_height;
 818         XResizeWindow( p_vout->p_sys->p_display, p_vout->p_sys->window,
 819                        p_vout->p_sys->i_width, p_vout->p_sys->i_height );
 820     }
 821     /*
 822      * Color/Grayscale or gamma change: in 8bpp, just change the colormap
 823      */
 824     if( (p_vout->i_changes & VOUT_GRAYSCALE_CHANGE)
 825         && (p_vout->i_screen_depth == 8) )
 826     {
 827         /* FIXME: clear flags ?? */
 828     }
 829
 830     /*
 831      * Size change
 832      */
 833     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 834     {
 835         intf_DbgMsg( "vout info: resizing window" );
 836         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 837
 838         /* Resize window */
 839         XResizeWindow( p_vout->p_sys->p_display, p_vout->p_sys->window,
 840                        p_vout->i_width, p_vout->i_height );
 841
 842         /* Destroy XImages to change their size */
 843         vout_End( p_vout );
 844
 845         /* Recreate XImages. If SysInit failed, the thread can't go on. */
 846         if( vout_Init( p_vout ) )
 847         {
 848             intf_ErrMsg( "vout error: cannot resize display" );
 849             return( 1 );
 850        }
 851
 852         /* Tell the video output thread that it will need to rebuild YUV
 853          * tables. This is needed since conversion buffer size may have
 854          * changed */
 855         p_vout->i_changes |= VOUT_YUV_CHANGE;
 856         intf_Msg( "vout: video display resized (%dx%d)",
 857                   p_vout->i_width, p_vout->i_height);
 858     }
 859 #endif /* #if 0 */
 860 #else
 861     /*
 862      * Size change
 863      */
 864     if( p_vout->i_changes & VOUT_SIZE_CHANGE )
 865     {
 866         int i_width, i_height, i_x, i_y;
 867
 868         p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
 869
 870         intf_WarnMsg( 3, "vout: video display resized (%dx%d)",
 871                       p_vout->p_sys->i_width,
 872                       p_vout->p_sys->i_height );
 873
 874         vout_PlacePicture( p_vout, p_vout->p_sys->i_width,
 875                            p_vout->p_sys->i_height,
 876                            &i_x, &i_y, &i_width, &i_height );
 877
 878         XResizeWindow( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window,
 879                        i_width, i_height );
 880
 881         XMoveWindow( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window,
 882                      i_x, i_y );
 883
 884     }
 885 #endif
 886
 887     /* Autohide Cursour */
 888     if( mdate() - p_vout->p_sys->i_time_mouse_last_moved > 2000000 )
 889     {
 890         /* Hide the mouse automatically */
 891         if( p_vout->p_sys->b_mouse_pointer_visible )
 892         {
 893             ToggleCursor( p_vout );
 894         }
 895     }
 896
 897     return 0;
 898 }
 899
 900 /*****************************************************************************
 901  * vout_End: terminate X11 video thread output method
 902  *****************************************************************************
 903  * Destroy the X11 XImages created by vout_Init. It is called at the end of
 904  * the thread, but also each time the window is resized.
 905  *****************************************************************************/
 906 static void vout_End( vout_thread_t *p_vout )
 907 {
 908     int i_index;
 909
 910     /* Free the direct buffers we allocated */
 911     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 912     {
 913         i_index--;
 914         FreePicture( p_vout, PP_OUTPUTPICTURE[ i_index ] );
 915     }
 916 }
 917
 918 /* following functions are local */
 919
 920 /*****************************************************************************
 921  * CreateWindow: open and set-up X11 main window
 922  *****************************************************************************/
 923 static int CreateWindow( vout_thread_t *p_vout )
 924 {
 925     XSizeHints              xsize_hints;
 926     XSetWindowAttributes    xwindow_attributes;
 927     XGCValues               xgcvalues;
 928     XEvent                  xevent;
 929
 930     boolean_t               b_expose;
 931     boolean_t               b_configure_notify;
 932     boolean_t               b_map_notify;
 933
 934     /* Set main window's size */
 935     if( p_vout->render.i_height * p_vout->render.i_aspect
 936         >= p_vout->render.i_width * VOUT_ASPECT_FACTOR )
 937     {
 938         p_vout->p_sys->i_width = p_vout->render.i_height
 939           * p_vout->render.i_aspect / VOUT_ASPECT_FACTOR;
 940         p_vout->p_sys->i_height = p_vout->render.i_height;
 941     }
 942     else
 943     {
 944         p_vout->p_sys->i_width = p_vout->render.i_width;
 945         p_vout->p_sys->i_height = p_vout->render.i_width
 946           * VOUT_ASPECT_FACTOR / p_vout->render.i_aspect;
 947     }
 948
 949 #if 0
 950     if( p_vout->p_sys->i_width <= 300 && p_vout->p_sys->i_height <= 300 )
 951     {
 952         p_vout->p_sys->i_width <<= 1;
 953         p_vout->p_sys->i_height <<= 1;
 954     }
 955     else if( p_vout->p_sys->i_width <= 400
 956              && p_vout->p_sys->i_height <= 400 )
 957     {
 958         p_vout->p_sys->i_width += p_vout->p_sys->i_width >> 1;
 959         p_vout->p_sys->i_height += p_vout->p_sys->i_height >> 1;
 960     }
 961 #endif
 962
 963     /* Prepare window manager hints and properties */
 964     xsize_hints.base_width          = p_vout->p_sys->i_width;
 965     xsize_hints.base_height         = p_vout->p_sys->i_height;
 966     xsize_hints.flags               = PSize;
 967     p_vout->p_sys->wm_protocols     = XInternAtom( p_vout->p_sys->p_display,
 968                                                    "WM_PROTOCOLS", True );
 969     p_vout->p_sys->wm_delete_window = XInternAtom( p_vout->p_sys->p_display,
 970                                                    "WM_DELETE_WINDOW", True );
 971
 972     /* Prepare window attributes */
 973     xwindow_attributes.backing_store = Always;       /* save the hidden part */
 974     xwindow_attributes.background_pixel = BlackPixel(p_vout->p_sys->p_display,
 975                                                      p_vout->p_sys->i_screen);
 976     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 977
 978
 979     /* Create the window and set hints - the window must receive
 980      * ConfigureNotify events, and until it is displayed, Expose and
 981      * MapNotify events. */
 982
 983     p_vout->p_sys->window =
 984         XCreateWindow( p_vout->p_sys->p_display,
 985                        DefaultRootWindow( p_vout->p_sys->p_display ),
 986                        0, 0,
 987                        p_vout->p_sys->i_width,
 988                        p_vout->p_sys->i_height,
 989                        0,
 990                        0, InputOutput, 0,
 991                        CWBackingStore | CWBackPixel | CWEventMask,
 992                        &xwindow_attributes );
 993
 994     /* Set window manager hints and properties: size hints, command,
 995      * window's name, and accepted protocols */
 996     XSetWMNormalHints( p_vout->p_sys->p_display, p_vout->p_sys->window,
 997                        &xsize_hints );
 998     XSetCommand( p_vout->p_sys->p_display, p_vout->p_sys->window,
 999                  p_main->ppsz_argv, p_main->i_argc );
1000     XStoreName( p_vout->p_sys->p_display, p_vout->p_sys->window,
1001 #ifdef MODULE_NAME_IS_x11
1002                 VOUT_TITLE " (X11 output)"
1003 #else
1004                 VOUT_TITLE " (XVideo output)"
1005 #endif
1006               );
1007
1008     if( (p_vout->p_sys->wm_protocols == None)        /* use WM_DELETE_WINDOW */
1009         || (p_vout->p_sys->wm_delete_window == None)
1010         || !XSetWMProtocols( p_vout->p_sys->p_display, p_vout->p_sys->window,
1011                              &p_vout->p_sys->wm_delete_window, 1 ) )
1012     {
1013         /* WM_DELETE_WINDOW is not supported by window manager */
1014         intf_Msg( "vout error: missing or bad window manager" );
1015     }
1016
1017     /* Creation of a graphic context that doesn't generate a GraphicsExpose
1018      * event when using functions like XCopyArea */
1019     xgcvalues.graphics_exposures = False;
1020     p_vout->p_sys->gc = XCreateGC( p_vout->p_sys->p_display,
1021                                    p_vout->p_sys->window,
1022                                    GCGraphicsExposures, &xgcvalues);
1023
1024     /* Send orders to server, and wait until window is displayed - three
1025      * events must be received: a MapNotify event, an Expose event allowing
1026      * drawing in the window, and a ConfigureNotify to get the window
1027      * dimensions. Once those events have been received, only ConfigureNotify
1028      * events need to be received. */
1029     b_expose = 0;
1030     b_configure_notify = 0;
1031     b_map_notify = 0;
1032     XMapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window);
1033     do
1034     {
1035         XNextEvent( p_vout->p_sys->p_display, &xevent);
1036         if( (xevent.type == Expose)
1037             && (xevent.xexpose.window == p_vout->p_sys->window) )
1038         {
1039             b_expose = 1;
1040         }
1041         else if( (xevent.type == MapNotify)
1042                  && (xevent.xmap.window == p_vout->p_sys->window) )
1043         {
1044             b_map_notify = 1;
1045         }
1046         else if( (xevent.type == ConfigureNotify)
1047                  && (xevent.xconfigure.window == p_vout->p_sys->window) )
1048         {
1049             b_configure_notify = 1;
1050             p_vout->p_sys->i_width = xevent.xconfigure.width;
1051             p_vout->p_sys->i_height = xevent.xconfigure.height;
1052         }
1053     } while( !( b_expose && b_configure_notify && b_map_notify ) );
1054
1055     XSelectInput( p_vout->p_sys->p_display, p_vout->p_sys->window,
1056                   StructureNotifyMask | KeyPressMask |
1057                   ButtonPressMask | ButtonReleaseMask |
1058                   PointerMotionMask );
1059
1060 #ifdef MODULE_NAME_IS_x11
1061     if( XDefaultDepth(p_vout->p_sys->p_display, p_vout->p_sys->i_screen) == 8 )
1062     {
1063         /* Allocate a new palette */
1064         p_vout->p_sys->colormap =
1065             XCreateColormap( p_vout->p_sys->p_display,
1066                              DefaultRootWindow( p_vout->p_sys->p_display ),
1067                              DefaultVisual( p_vout->p_sys->p_display,
1068                                             p_vout->p_sys->i_screen ),
1069                              AllocAll );
1070
1071         xwindow_attributes.colormap = p_vout->p_sys->colormap;
1072         XChangeWindowAttributes( p_vout->p_sys->p_display,
1073                                  p_vout->p_sys->window,
1074                                  CWColormap, &xwindow_attributes );
1075     }
1076
1077 #else
1078     /* Create YUV output sub-window. */
1079     p_vout->p_sys->yuv_window = XCreateSimpleWindow( p_vout->p_sys->p_display,
1080                          p_vout->p_sys->window, 0, 0,
1081                          p_vout->p_sys->i_width,
1082                          p_vout->p_sys->i_height,
1083                          0,
1084                          BlackPixel( p_vout->p_sys->p_display,
1085                                          p_vout->p_sys->i_screen ),
1086                          WhitePixel( p_vout->p_sys->p_display,
1087                                          p_vout->p_sys->i_screen ) );
1088
1089     XSetWindowBackground( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window,
1090              BlackPixel(p_vout->p_sys->p_display, p_vout->p_sys->i_screen ) );
1091
1092     XMapWindow( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window );
1093     XSelectInput( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window,
1094                   ExposureMask );
1095 #endif
1096
1097     /* If the cursor was formerly blank than blank it again */
1098     if( !p_vout->p_sys->b_mouse_pointer_visible )
1099     {
1100         ToggleCursor( p_vout );
1101         ToggleCursor( p_vout );
1102     }
1103
1104     XSync( p_vout->p_sys->p_display, False );
1105
1106     /* At this stage, the window is open, displayed, and ready to
1107      * receive data */
1108
1109     return( 0 );
1110 }
1111
1112 /*****************************************************************************
1113  * DestroyWindow: destroy the window
1114  *****************************************************************************
1115  *
1116  *****************************************************************************/
1117 static void DestroyWindow( vout_thread_t *p_vout )
1118 {
1119     XSync( p_vout->p_sys->p_display, False );
1120
1121 #ifdef MODULE_NAME_IS_xvideo
1122     XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->yuv_window );
1123 #endif
1124
1125     XUnmapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
1126     XFreeGC( p_vout->p_sys->p_display, p_vout->p_sys->gc );
1127     XDestroyWindow( p_vout->p_sys->p_display, p_vout->p_sys->window );
1128 }
1129
1130 /*****************************************************************************
1131  * NewPicture: allocate a picture
1132  *****************************************************************************
1133  * Returns 0 on success, -1 otherwise
1134  *****************************************************************************/
1135 static int NewPicture( vout_thread_t *p_vout, picture_t *p_pic )
1136 {
1137 #define P p_pic->planes
1138     int i_width  = p_vout->output.i_width;
1139     int i_height = p_vout->output.i_height;
1140
1141     switch( ONLY_FOURCC( p_vout->output.i_chroma ) )
1142     {
1143 #ifdef MODULE_NAME_IS_xvideo
1144         case FOURCC_I420:
1145             /* We know this chroma, allocate a buffer which will be used
1146              * directly by the decoder */
1147             p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
1148
1149             if( p_pic->p_sys == NULL )
1150             {
1151                 return -1;
1152             }
1153
1154             if( p_vout->p_sys->b_shm )
1155             {
1156                 /* Create XvImage using XShm extension */
1157                 p_pic->p_sys->p_image =
1158                     CreateShmImage( p_vout->p_sys->p_display,
1159                                     p_vout->p_sys->i_xvport,
1160                                     GUID_YUV12_PLANAR,
1161                                     &p_pic->p_sys->shminfo,
1162                                     p_vout->output.i_width,
1163                                     p_vout->output.i_height );
1164             }
1165             else
1166             {
1167                 /* Create XvImage using XShm extension */
1168                 p_pic->p_sys->p_image =
1169                     CreateImage( p_vout->p_sys->p_display,
1170                                  p_vout->p_sys->i_xvport,
1171                                  GUID_YUV12_PLANAR,
1172                                  p_vout->output.i_width,
1173                                  p_vout->output.i_height );
1174             }
1175
1176             if( p_pic->p_sys->p_image == NULL )
1177             {
1178                 free( p_pic->p_sys );
1179                 return -1;
1180             }
1181
1182             /* FIXME: try to get the right i_bytes value from p_image */
1183             P[Y_PLANE].p_data = p_pic->p_sys->p_image->data;
1184             P[Y_PLANE].i_bytes = i_width * i_height;
1185             P[Y_PLANE].i_line_bytes = i_width;
1186
1187             P[U_PLANE].p_data = P[Y_PLANE].p_data + i_width * i_height * 5 / 4;
1188             P[U_PLANE].i_bytes = i_width * i_height / 4;
1189             P[U_PLANE].i_line_bytes = i_width / 2;
1190
1191             P[V_PLANE].p_data = P[Y_PLANE].p_data + i_width * i_height;
1192             P[V_PLANE].i_bytes = i_width * i_height / 4;
1193             P[V_PLANE].i_line_bytes = i_width / 2;
1194
1195             p_pic->i_planes = 3;
1196
1197             return 0;
1198 #endif
1199
1200 #ifdef MODULE_NAME_IS_x11
1201         case FOURCC_BI_BITFIELDS:
1202             p_pic->p_sys = malloc( sizeof( picture_sys_t ) );
1203
1204             if( p_pic->p_sys == NULL )
1205             {
1206                 return -1;
1207             }
1208
1209             if( p_vout->p_sys->b_shm )
1210             {
1211                 p_pic->p_sys->p_image =
1212                     CreateShmImage( p_vout->p_sys->p_display,
1213                                     p_vout->p_sys->p_visual,
1214                                     p_vout->p_sys->i_screen_depth,
1215                                     &p_pic->p_sys->shminfo,
1216                                     i_width, i_height );
1217             }
1218             else
1219             {
1220                 p_pic->p_sys->p_image =
1221                     CreateImage( p_vout->p_sys->p_display,
1222                                  p_vout->p_sys->p_visual,
1223                                  p_vout->p_sys->i_screen_depth,
1224                                  p_vout->p_sys->i_bytes_per_pixel,
1225                                  i_width, i_height );
1226             }
1227
1228             if( p_pic->p_sys->p_image == NULL )
1229             {
1230                 free( p_pic->p_sys );
1231                 return -1;
1232             }
1233
1234             /* FIXME: try to get the right i_bytes value from p_image */
1235             P[ MAIN_PLANE ].p_data = p_pic->p_sys->p_image->data;
1236             P[ MAIN_PLANE ].i_bytes = p_vout->p_sys->i_bytes_per_pixel
1237                                        * i_width * i_height;
1238             P[ MAIN_PLANE ].i_line_bytes = p_vout->p_sys->i_bytes_per_pixel
1239                                             * i_width;
1240
1241             P[ MAIN_PLANE ].i_red_mask = p_vout->p_sys->i_red_mask;
1242             P[ MAIN_PLANE ].i_green_mask = p_vout->p_sys->i_green_mask;
1243             P[ MAIN_PLANE ].i_blue_mask = p_vout->p_sys->i_blue_mask;
1244
1245             p_pic->i_planes = 1;
1246
1247             return 0;
1248 #endif
1249
1250         default:
1251             /* Unknown chroma, tell the guy to get lost */
1252             p_pic->i_planes = 0;
1253
1254             return -1;
1255     }
1256 #undef P
1257 }
1258
1259 /*****************************************************************************
1260  * FreePicture: destroy a picture allocated with NewPicture
1261  *****************************************************************************
1262  * Destroy XImage AND associated data. If using Shm, detach shared memory
1263  * segment from server and process, then free it. The XDestroyImage manpage
1264  * says that both the image structure _and_ the data pointed to by the
1265  * image structure are freed, so no need to free p_image->data.
1266  *****************************************************************************/
1267 static void FreePicture( vout_thread_t *p_vout, picture_t *p_pic )
1268 {
1269     /* The order of operations is correct */
1270     if( p_vout->p_sys->b_shm )
1271     {
1272         XShmDetach( p_vout->p_sys->p_display, &p_pic->p_sys->shminfo );
1273         IMAGE_FREE( p_pic->p_sys->p_image );
1274
1275         shmctl( p_pic->p_sys->shminfo.shmid, IPC_RMID, 0 );
1276         if( shmdt( p_pic->p_sys->shminfo.shmaddr ) )
1277         {
1278             intf_ErrMsg( "vout error: cannot detach shared memory (%s)",
1279                          strerror(errno) );
1280         }
1281     }
1282     else
1283     {
1284         IMAGE_FREE( p_pic->p_sys->p_image );
1285     }
1286
1287     XSync( p_vout->p_sys->p_display, False );
1288
1289     free( p_pic->p_sys );
1290 }
1291
1292 /*****************************************************************************
1293  * ToggleFullScreen: Enable or disable full screen mode
1294  *****************************************************************************
1295  * This function will switch between fullscreen and window mode.
1296  *
1297  *****************************************************************************/
1298 static void ToggleFullScreen ( vout_thread_t *p_vout )
1299 {
1300   Atom prop;
1301   mwmhints_t mwmhints;
1302   int i_xpos, i_ypos, i_width, i_height;
1303
1304   p_vout->b_fullscreen = !p_vout->b_fullscreen;
1305
1306   if( p_vout->b_fullscreen )
1307   {
1308       Window next_parent, parent, *p_dummy, dummy1;
1309       unsigned int dummy2, dummy3;
1310
1311       intf_WarnMsg( 3, "vout: entering fullscreen mode" );
1312
1313       /* Save current window coordinates so they can be restored when
1314        * we exit from fullscreen mode */
1315
1316       /* find the real parent, which means the which is a direct child of
1317        * the root window */
1318       next_parent = parent = p_vout->p_sys->window;
1319       while( next_parent != DefaultRootWindow( p_vout->p_sys->p_display ) )
1320       {
1321           parent = next_parent;
1322           XQueryTree( p_vout->p_sys->p_display,
1323                       parent,
1324                       &dummy1,
1325                       &next_parent,
1326                       &p_dummy,
1327                       &dummy2 );
1328           XFree((void *)p_dummy);
1329       }
1330
1331       XGetGeometry( p_vout->p_sys->p_display,
1332                     p_vout->p_sys->window,
1333                     &dummy1,
1334                     &dummy2,
1335                     &dummy3,
1336                     &p_vout->p_sys->i_width_backup,
1337                     &p_vout->p_sys->i_height_backup,
1338                     &dummy2, &dummy3 );
1339
1340       XTranslateCoordinates( p_vout->p_sys->p_display,
1341                              parent,
1342                              DefaultRootWindow( p_vout->p_sys->p_display ),
1343                              0,
1344                              0,
1345                              &p_vout->p_sys->i_xpos_backup,
1346                              &p_vout->p_sys->i_ypos_backup,
1347                              &dummy1 );
1348
1349       mwmhints.flags = MWM_HINTS_DECORATIONS;
1350       mwmhints.decorations = 0;
1351
1352       i_xpos = 0;
1353       i_ypos = 0;
1354       i_width = DisplayWidth( p_vout->p_sys->p_display,
1355                               p_vout->p_sys->i_screen );
1356       i_height = DisplayHeight( p_vout->p_sys->p_display,
1357                                 p_vout->p_sys->i_screen );
1358
1359 #if 0
1360       /* Being a transient window allows us to really be fullscreen (display
1361        * over the taskbar for instance) but then we end-up with the same
1362        * result as with the brute force method */
1363       XSetTransientForHint( p_vout->p_sys->p_display,
1364                             p_vout->p_sys->window, None );
1365 #endif
1366   }
1367   else
1368   {
1369       intf_WarnMsg( 3, "vout: leaving fullscreen mode" );
1370
1371       mwmhints.flags = MWM_HINTS_DECORATIONS;
1372       mwmhints.decorations = 1;
1373
1374       i_xpos = p_vout->p_sys->i_xpos_backup;
1375       i_ypos = p_vout->p_sys->i_ypos_backup;
1376       i_width = p_vout->p_sys->i_width_backup;
1377       i_height = p_vout->p_sys->i_height_backup;
1378   }
1379
1380   /* To my knowledge there are two ways to create a borderless window.
1381    * There's the generic way which is to tell x to bypass the window manager,
1382    * but this creates problems with the focus of other applications.
1383    * The other way is to use the motif property "_MOTIF_WM_HINTS" which
1384    * luckily seems to be supported by most window managers.
1385    */
1386   prop = XInternAtom( p_vout->p_sys->p_display, "_MOTIF_WM_HINTS",
1387                       False );
1388   XChangeProperty( p_vout->p_sys->p_display, p_vout->p_sys->window,
1389                    prop, prop, 32, PropModeReplace,
1390                    (unsigned char *)&mwmhints,
1391                    PROP_MWM_HINTS_ELEMENTS );
1392 #if 0 /* brute force way to remove decorations */
1393   XSetWindowAttributes attributes;
1394   attributes.override_redirect = True;
1395   XChangeWindowAttributes( p_vout->p_sys->p_display,
1396                            p_vout->p_sys->window,
1397                            CWOverrideRedirect,
1398                            &attributes);
1399 #endif
1400
1401   /* We need to unmap and remap the window if we want the window
1402    * manager to take our changes into effect */
1403   XUnmapWindow( p_vout->p_sys->p_display, p_vout->p_sys->window);
1404   XMapRaised( p_vout->p_sys->p_display, p_vout->p_sys->window);
1405   XMoveResizeWindow( p_vout->p_sys->p_display,
1406                      p_vout->p_sys->window,
1407                      i_xpos,
1408                      i_ypos,
1409                      i_width,
1410                      i_height );
1411   XFlush( p_vout->p_sys->p_display );
1412 }
1413
1414 /*****************************************************************************
1415  * EnableXScreenSaver: enable screen saver
1416  *****************************************************************************
1417  * This function enables the screen saver on a display after it has been
1418  * disabled by XDisableScreenSaver.
1419  * FIXME: what happens if multiple vlc sessions are running at the same
1420  *        time ???
1421  *****************************************************************************/
1422 static void EnableXScreenSaver( vout_thread_t *p_vout )
1423 {
1424     int dummy;
1425
1426     intf_DbgMsg( "vout: enabling screen saver" );
1427     XSetScreenSaver( p_vout->p_sys->p_display, p_vout->p_sys->i_ss_timeout,
1428                      p_vout->p_sys->i_ss_interval,
1429                      p_vout->p_sys->i_ss_blanking,
1430                      p_vout->p_sys->i_ss_exposure );
1431
1432     /* Restore DPMS settings */
1433     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1434     {
1435         if( p_vout->p_sys->b_ss_dpms )
1436             DPMSEnable( p_vout->p_sys->p_display );
1437     }
1438 }
1439
1440 /*****************************************************************************
1441  * DisableXScreenSaver: disable screen saver
1442  *****************************************************************************
1443  * See XEnableXScreenSaver
1444  *****************************************************************************/
1445 static void DisableXScreenSaver( vout_thread_t *p_vout )
1446 {
1447     int dummy;
1448
1449     /* Save screen saver informations */
1450     XGetScreenSaver( p_vout->p_sys->p_display, &p_vout->p_sys->i_ss_timeout,
1451                      &p_vout->p_sys->i_ss_interval,
1452                      &p_vout->p_sys->i_ss_blanking,
1453                      &p_vout->p_sys->i_ss_exposure );
1454
1455     /* Disable screen saver */
1456     intf_DbgMsg( "vout: disabling screen saver" );
1457     XSetScreenSaver( p_vout->p_sys->p_display, 0,
1458                      p_vout->p_sys->i_ss_interval,
1459                      p_vout->p_sys->i_ss_blanking,
1460                      p_vout->p_sys->i_ss_exposure );
1461
1462     /* Disable DPMS */
1463     if( DPMSQueryExtension( p_vout->p_sys->p_display, &dummy, &dummy ) )
1464     {
1465         CARD16 dummy;
1466         /* Save DPMS current state */
1467         DPMSInfo( p_vout->p_sys->p_display, &dummy,
1468                   &p_vout->p_sys->b_ss_dpms );
1469         intf_DbgMsg( "vout: disabling DPMS" );
1470         DPMSDisable( p_vout->p_sys->p_display );
1471    }
1472 }
1473
1474 /*****************************************************************************
1475  * CreateCursor: create a blank mouse pointer
1476  *****************************************************************************/
1477 static void CreateCursor( vout_thread_t *p_vout )
1478 {
1479     XColor cursor_color;
1480
1481     p_vout->p_sys->cursor_pixmap =
1482         XCreatePixmap( p_vout->p_sys->p_display,
1483                        DefaultRootWindow( p_vout->p_sys->p_display ),
1484                        1, 1, 1 );
1485
1486     XParseColor( p_vout->p_sys->p_display,
1487                  XCreateColormap( p_vout->p_sys->p_display,
1488                                   DefaultRootWindow(
1489                                                     p_vout->p_sys->p_display ),
1490                                   DefaultVisual(
1491                                                 p_vout->p_sys->p_display,
1492                                                 p_vout->p_sys->i_screen ),
1493                                   AllocNone ),
1494                  "black", &cursor_color );
1495
1496     p_vout->p_sys->blank_cursor =
1497         XCreatePixmapCursor( p_vout->p_sys->p_display,
1498                              p_vout->p_sys->cursor_pixmap,
1499                              p_vout->p_sys->cursor_pixmap,
1500                              &cursor_color, &cursor_color, 1, 1 );
1501 }
1502
1503 /*****************************************************************************
1504  * DestroyCursor: destroy the blank mouse pointer
1505  *****************************************************************************/
1506 static void DestroyCursor( vout_thread_t *p_vout )
1507 {
1508     XFreePixmap( p_vout->p_sys->p_display, p_vout->p_sys->cursor_pixmap );
1509 }
1510
1511 /*****************************************************************************
1512  * ToggleCursor: hide or show the mouse pointer
1513  *****************************************************************************
1514  * This function hides the X pointer if it is visible by setting the pointer
1515  * sprite to a blank one. To show it again, we disable the sprite.
1516  *****************************************************************************/
1517 static void ToggleCursor( vout_thread_t *p_vout )
1518 {
1519     if( p_vout->p_sys->b_mouse_pointer_visible )
1520     {
1521         XDefineCursor( p_vout->p_sys->p_display,
1522                        p_vout->p_sys->window,
1523                        p_vout->p_sys->blank_cursor );
1524         p_vout->p_sys->b_mouse_pointer_visible = 0;
1525     }
1526     else
1527     {
1528         XUndefineCursor( p_vout->p_sys->p_display, p_vout->p_sys->window );
1529         p_vout->p_sys->b_mouse_pointer_visible = 1;
1530     }
1531 }
1532
1533 #ifdef MODULE_NAME_IS_xvideo
1534 /*****************************************************************************
1535  * XVideoGetPort: get YUV12 port
1536  *****************************************************************************/
1537 static int XVideoGetPort( Display *dpy, int i_id )
1538 {
1539     XvAdaptorInfo *p_adaptor;
1540     unsigned int i;
1541     int i_adaptor, i_num_adaptors, i_requested_adaptor;
1542     int i_selected_port;
1543
1544     switch( XvQueryExtension( dpy, &i, &i, &i, &i, &i ) )
1545     {
1546         case Success:
1547             break;
1548
1549         case XvBadExtension:
1550             intf_WarnMsg( 3, "vout error: XvBadExtension" );
1551             return( -1 );
1552
1553         case XvBadAlloc:
1554             intf_WarnMsg( 3, "vout error: XvBadAlloc" );
1555             return( -1 );
1556
1557         default:
1558             intf_WarnMsg( 3, "vout error: XvQueryExtension failed" );
1559             return( -1 );
1560     }
1561
1562     switch( XvQueryAdaptors( dpy, DefaultRootWindow( dpy ),
1563                              &i_num_adaptors, &p_adaptor ) )
1564     {
1565         case Success:
1566             break;
1567
1568         case XvBadExtension:
1569             intf_WarnMsg( 3, "vout error: XvBadExtension for XvQueryAdaptors" );
1570             return( -1 );
1571
1572         case XvBadAlloc:
1573             intf_WarnMsg( 3, "vout error: XvBadAlloc for XvQueryAdaptors" );
1574             return( -1 );
1575
1576         default:
1577             intf_WarnMsg( 3, "vout error: XvQueryAdaptors failed" );
1578             return( -1 );
1579     }
1580
1581     i_selected_port = -1;
1582     i_requested_adaptor = main_GetIntVariable( VOUT_XVADAPTOR_VAR, -1 );
1583
1584     /* No special xv port has been requested so try all of them */
1585     for( i_adaptor = 0; i_adaptor < i_num_adaptors; ++i_adaptor )
1586     {
1587         XvImageFormatValues *p_formats;
1588         int i_format, i_num_formats;
1589         int i_port;
1590
1591         /* If we requested an adaptor and it's not this one, we aren't
1592          * interested */
1593         if( i_requested_adaptor != -1 && i_adaptor != i_requested_adaptor )
1594         {
1595             continue;
1596         }
1597
1598         /* If the adaptor doesn't have the required properties, skip it */
1599         if( !( p_adaptor[ i_adaptor ].type & XvInputMask ) ||
1600             !( p_adaptor[ i_adaptor ].type & XvImageMask ) )
1601         {
1602             continue;
1603         }
1604
1605         /* Check that port supports YUV12 planar format... */
1606         p_formats = XvListImageFormats( dpy, p_adaptor[i_adaptor].base_id,
1607                                         &i_num_formats );
1608
1609         for( i_format = 0; i_format < i_num_formats; i_format++ )
1610         {
1611             XvEncodingInfo  *p_enc;
1612             int             i_enc, i_num_encodings;
1613             XvAttribute     *p_attr;
1614             int             i_attr, i_num_attributes;
1615
1616             /* If this is not the format we want, forget it */
1617             if( p_formats[ i_format ].id != i_id )
1618             {
1619                 continue;
1620             }
1621
1622             /* Look for the first available port supporting this format */
1623             for( i_port = p_adaptor[i_adaptor].base_id;
1624                  ( i_port < p_adaptor[i_adaptor].base_id
1625                              + p_adaptor[i_adaptor].num_ports )
1626                    && ( i_selected_port == -1 );
1627                  i_port++ )
1628             {
1629                 if( XvGrabPort( dpy, i_port, CurrentTime ) == Success )
1630                 {
1631                     i_selected_port = i_port;
1632                 }
1633             }
1634
1635             /* If no free port was found, forget it */
1636             if( i_selected_port == -1 )
1637             {
1638                 continue;
1639             }
1640
1641             /* If we found a port, print information about it */
1642             intf_WarnMsg( 3, "vout: found adaptor %i, port %i, "
1643                              "image format 0x%x (%4.4s) %s",
1644                              i_adaptor, i_selected_port,
1645                              p_formats[ i_format ].id,
1646                              (char *)&p_formats[ i_format ].id,
1647                              ( p_formats[ i_format ].format
1648                                 == XvPacked ) ? "packed" : "planar" );
1649
1650             intf_WarnMsg( 10, " encoding list:" );
1651
1652             if( XvQueryEncodings( dpy, i_selected_port,
1653                                   &i_num_encodings, &p_enc )
1654                  != Success )
1655             {
1656                 intf_WarnMsg( 10, "  XvQueryEncodings failed" );
1657                 continue;
1658             }
1659
1660             for( i_enc = 0; i_enc < i_num_encodings; i_enc++ )
1661             {
1662                 intf_WarnMsg( 10, "  id=%ld, name=%s, size=%ldx%ld,"
1663                                   " numerator=%d, denominator=%d",
1664                               p_enc[i_enc].encoding_id, p_enc[i_enc].name,
1665                               p_enc[i_enc].width, p_enc[i_enc].height,
1666                               p_enc[i_enc].rate.numerator,
1667                               p_enc[i_enc].rate.denominator );
1668             }
1669
1670             if( p_enc != NULL )
1671             {
1672                 XvFreeEncodingInfo( p_enc );
1673             }
1674
1675             intf_WarnMsg( 10, " attribute list:" );
1676             p_attr = XvQueryPortAttributes( dpy, i_selected_port,
1677                                             &i_num_attributes );
1678             for( i_attr = 0; i_attr < i_num_attributes; i_attr++ )
1679             {
1680                 intf_WarnMsg( 10,
1681                       "  name=%s, flags=[%s%s ], min=%i, max=%i",
1682                       p_attr[i_attr].name,
1683                       (p_attr[i_attr].flags & XvGettable) ? " get" : "",
1684                       (p_attr[i_attr].flags & XvSettable) ? " set" : "",
1685                       p_attr[i_attr].min_value, p_attr[i_attr].max_value );
1686             }
1687
1688             if( p_attr != NULL )
1689             {
1690                 XFree( p_attr );
1691             }
1692         }
1693
1694         if( p_formats != NULL )
1695         {
1696             XFree( p_formats );
1697         }
1698
1699     }
1700
1701     if( i_num_adaptors > 0 )
1702     {
1703         XvFreeAdaptorInfo( p_adaptor );
1704     }
1705
1706     if( i_selected_port == -1 )
1707     {
1708         if( i_requested_adaptor == -1 )
1709         {
1710             intf_WarnMsg( 3, "vout: no free XVideo port found for %i", i_id );
1711         }
1712         else
1713         {
1714             intf_WarnMsg( 3, "vout: XVideo adaptor %i does not have a free "
1715                              "XVideo port for %i", i_requested_adaptor, i_id );
1716         }
1717     }
1718
1719     return( i_selected_port );
1720 }
1721
1722 /*****************************************************************************
1723  * XVideoReleasePort: release YUV12 port
1724  *****************************************************************************/
1725 static void XVideoReleasePort( Display *dpy, int i_port )
1726 {
1727     XvUngrabPort( dpy, i_port, CurrentTime );
1728 }
1729 #endif
1730
1731 /*****************************************************************************
1732  * InitDisplay: open and initialize X11 device
1733  *****************************************************************************
1734  * Create a window according to video output given size, and set other
1735  * properties according to the display properties.
1736  *****************************************************************************/
1737 static int InitDisplay( vout_thread_t *p_vout )
1738 {
1739 #ifdef MODULE_NAME_IS_x11
1740     XPixmapFormatValues *       p_formats;                 /* pixmap formats */
1741     XVisualInfo *               p_xvisual;           /* visuals informations */
1742     XVisualInfo                 xvisual_template;         /* visual template */
1743     int                         i_count;                       /* array size */
1744 #endif
1745
1746 #ifdef SYS_DARWIN
1747     /* FIXME : As of 2001-03-16, XFree4 for MacOS X does not support Xshm. */
1748     p_vout->p_sys->b_shm = 0;
1749 #else
1750     p_vout->p_sys->b_shm = ( XShmQueryExtension( p_vout->p_sys->p_display )
1751                               == True );
1752 #endif
1753     if( !p_vout->p_sys->b_shm )
1754     {
1755         intf_WarnMsg( 1, "vout warning: XShm video extension is unavailable" );
1756     }
1757
1758 #ifdef MODULE_NAME_IS_xvideo
1759     /* XXX The brightness and contrast values should be read from environment
1760      * XXX variables... */
1761 #if 0
1762     XVideoSetAttribute( p_vout, "XV_BRIGHTNESS", 0.5 );
1763     XVideoSetAttribute( p_vout, "XV_CONTRAST",   0.5 );
1764 #endif
1765 #endif
1766
1767 #ifdef MODULE_NAME_IS_x11
1768     /* Initialize structure */
1769     p_vout->p_sys->i_screen = DefaultScreen( p_vout->p_sys->p_display );
1770
1771     /* Get screen depth */
1772     p_vout->p_sys->i_screen_depth = XDefaultDepth( p_vout->p_sys->p_display,
1773                                                    p_vout->p_sys->i_screen );
1774     switch( p_vout->p_sys->i_screen_depth )
1775     {
1776     case 8:
1777         /*
1778          * Screen depth is 8bpp. Use PseudoColor visual with private colormap.
1779          */
1780         xvisual_template.screen =   p_vout->p_sys->i_screen;
1781         xvisual_template.class =    DirectColor;
1782         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1783                                     VisualScreenMask | VisualClassMask,
1784                                     &xvisual_template, &i_count );
1785         if( p_xvisual == NULL )
1786         {
1787             intf_ErrMsg( "vout error: no PseudoColor visual available" );
1788             return( 1 );
1789         }
1790         p_vout->p_sys->i_bytes_per_pixel = 1;
1791         break;
1792     case 15:
1793     case 16:
1794     case 24:
1795     default:
1796         /*
1797          * Screen depth is higher than 8bpp. TrueColor visual is used.
1798          */
1799         xvisual_template.screen =   p_vout->p_sys->i_screen;
1800         xvisual_template.class =    TrueColor;
1801         p_xvisual = XGetVisualInfo( p_vout->p_sys->p_display,
1802                                     VisualScreenMask | VisualClassMask,
1803                                     &xvisual_template, &i_count );
1804         if( p_xvisual == NULL )
1805         {
1806             intf_ErrMsg( "vout error: no TrueColor visual available" );
1807             return( 1 );
1808         }
1809         p_vout->p_sys->i_red_mask =        p_xvisual->red_mask;
1810         p_vout->p_sys->i_green_mask =      p_xvisual->green_mask;
1811         p_vout->p_sys->i_blue_mask =       p_xvisual->blue_mask;
1812
1813         /* There is no difference yet between 3 and 4 Bpp. The only way
1814          * to find the actual number of bytes per pixel is to list supported
1815          * pixmap formats. */
1816         p_formats = XListPixmapFormats( p_vout->p_sys->p_display, &i_count );
1817         p_vout->p_sys->i_bytes_per_pixel = 0;
1818
1819         for( ; i_count-- ; p_formats++ )
1820         {
1821             /* Under XFree4.0, the list contains pixmap formats available
1822              * through all video depths ; so we have to check against current
1823              * depth. */
1824             if( p_formats->depth == p_vout->p_sys->i_screen_depth )
1825             {
1826                 if( p_formats->bits_per_pixel / 8
1827                         > p_vout->p_sys->i_bytes_per_pixel )
1828                 {
1829                     p_vout->p_sys->i_bytes_per_pixel = p_formats->bits_per_pixel / 8;
1830                 }
1831             }
1832         }
1833         break;
1834     }
1835     p_vout->p_sys->p_visual = p_xvisual->visual;
1836     XFree( p_xvisual );
1837 #endif
1838
1839     return( 0 );
1840 }
1841
1842 /*****************************************************************************
1843  * CreateShmImage: create an XImage or XvImage using shared memory extension
1844  *****************************************************************************
1845  * Prepare an XImage or XvImage for display function.
1846  * The order of the operations respects the recommandations of the mit-shm
1847  * document by J.Corbet and K.Packard. Most of the parameters were copied from
1848  * there. See http://ftp.xfree86.org/pub/XFree86/4.0/doc/mit-shm.TXT
1849  *****************************************************************************/
1850 static IMAGE_TYPE * CreateShmImage( Display* p_display, EXTRA_ARGS_SHM,
1851                                     int i_width, int i_height )
1852 {
1853     IMAGE_TYPE *p_image;
1854
1855     /* Create XImage / XvImage */
1856 #ifdef MODULE_NAME_IS_xvideo
1857     p_image = XvShmCreateImage( p_display, i_xvport, i_format, 0,
1858                                 i_width, i_height, p_shm );
1859 #else
1860     p_image = XShmCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
1861                                p_shm, i_width, i_height );
1862 #endif
1863     if( p_image == NULL )
1864     {
1865         intf_ErrMsg( "vout error: image creation failed." );
1866         return( NULL );
1867     }
1868
1869     /* Allocate shared memory segment - 0776 set the access permission
1870      * rights (like umask), they are not yet supported by all X servers */
1871     p_shm->shmid = shmget( IPC_PRIVATE, DATA_SIZE(p_image), IPC_CREAT | 0776 );
1872     if( p_shm->shmid < 0 )
1873     {
1874         intf_ErrMsg( "vout error: cannot allocate shared image data (%s)",
1875                      strerror( errno ) );
1876         IMAGE_FREE( p_image );
1877         return( NULL );
1878     }
1879
1880     /* Attach shared memory segment to process (read/write) */
1881     p_shm->shmaddr = p_image->data = shmat( p_shm->shmid, 0, 0 );
1882     if(! p_shm->shmaddr )
1883     {
1884         intf_ErrMsg( "vout error: cannot attach shared memory (%s)",
1885                     strerror(errno));
1886         IMAGE_FREE( p_image );
1887         shmctl( p_shm->shmid, IPC_RMID, 0 );
1888         return( NULL );
1889     }
1890
1891     /* Read-only data. We won't be using XShmGetImage */
1892     p_shm->readOnly = True;
1893
1894     /* Attach shared memory segment to X server */
1895     if( XShmAttach( p_display, p_shm ) == False )
1896     {
1897         intf_ErrMsg( "vout error: cannot attach shared memory to X server" );
1898         IMAGE_FREE( p_image );
1899         shmctl( p_shm->shmid, IPC_RMID, 0 );
1900         shmdt( p_shm->shmaddr );
1901         return( NULL );
1902     }
1903
1904     /* Send image to X server. This instruction is required, since having
1905      * built a Shm XImage and not using it causes an error on XCloseDisplay */
1906     XSync( p_display, False );
1907
1908 #if 0
1909     /* Mark the shm segment to be removed when there are no more
1910      * attachements, so it is automatic on process exit or after shmdt */
1911     shmctl( p_shm->shmid, IPC_RMID, 0 );
1912 #endif
1913
1914     return( p_image );
1915 }
1916
1917 /*****************************************************************************
1918  * CreateImage: create an XImage or XvImage
1919  *****************************************************************************
1920  * Create a simple image used as a buffer.
1921  *****************************************************************************/
1922 static IMAGE_TYPE * CreateImage( Display *p_display, EXTRA_ARGS,
1923                                  int i_width, int i_height )
1924 {
1925     byte_t *    p_data;                           /* image data storage zone */
1926     IMAGE_TYPE *p_image;
1927 #ifdef MODULE_NAME_IS_x11
1928     int         i_quantum;                     /* XImage quantum (see below) */
1929     int         i_bytes_per_line;
1930 #endif
1931
1932     /* Allocate memory for image */
1933 #ifdef MODULE_NAME_IS_xvideo
1934     p_data = (byte_t *) malloc( i_width * i_height * 2 ); /* XXX */
1935 #else
1936     i_bytes_per_line = i_width * i_bytes_per_pixel;
1937     p_data = (byte_t *) malloc( i_bytes_per_line * i_height );
1938 #endif
1939     if( !p_data )
1940     {
1941         intf_ErrMsg( "vout error: %s", strerror(ENOMEM));
1942         return( NULL );
1943     }
1944
1945 #ifdef MODULE_NAME_IS_x11
1946     /* Optimize the quantum of a scanline regarding its size - the quantum is
1947        a diviser of the number of bits between the start of two scanlines. */
1948     if( i_bytes_per_line & 0xf )
1949     {
1950         i_quantum = 0x8;
1951     }
1952     else if( i_bytes_per_line & 0x10 )
1953     {
1954         i_quantum = 0x10;
1955     }
1956     else
1957     {
1958         i_quantum = 0x20;
1959     }
1960 #endif
1961
1962     /* Create XImage. p_data will be automatically freed */
1963 #ifdef MODULE_NAME_IS_xvideo
1964     p_image = XvCreateImage( p_display, i_xvport, i_format,
1965                              p_data, i_width, i_height );
1966 #else
1967     p_image = XCreateImage( p_display, p_visual, i_depth, ZPixmap, 0,
1968                             p_data, i_width, i_height, i_quantum, 0 );
1969 #endif
1970     if( p_image == NULL )
1971     {
1972         intf_ErrMsg( "vout error: XCreateImage() failed" );
1973         free( p_data );
1974         return( NULL );
1975     }
1976
1977     return p_image;
1978 }
1979