git.sesse.net Git - vlc/blob - modules/video_output/msw/directx.c

   1 /*****************************************************************************
   2  * vout.c: Windows DirectX video output display method
   3  *****************************************************************************
   4  * Copyright (C) 2001-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Gildas Bazin <gbazin@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble:
  26  *
  27  * This plugin will use YUV overlay if supported, using overlay will result in
  28  * the best video quality (hardware interpolation when rescaling the picture)
  29  * and the fastest display as it requires less processing.
  30  *
  31  * If YUV overlay is not supported this plugin will use RGB offscreen video
  32  * surfaces that will be blitted onto the primary surface (display) to
  33  * effectively display the pictures. This fallback method also enables us to
  34  * display video in window mode.
  35  *
  36  *****************************************************************************/
  37 #include <errno.h>                                                 /* ENOMEM */
  38
  39 #ifdef HAVE_CONFIG_H
  40 # include "config.h"
  41 #endif
  42
  43 #include <vlc/vlc.h>
  44 #include <vlc_interface.h>
  45 #include <vlc_playlist.h>
  46 #include <vlc_vout.h>
  47
  48 #include <windows.h>
  49 #include <ddraw.h>
  50 #include <commctrl.h>
  51
  52 #ifndef UNDER_CE
  53 #   include <multimon.h>
  54 #endif
  55 #undef GetSystemMetrics
  56
  57 #ifndef MONITOR_DEFAULTTONEAREST
  58 #   define MONITOR_DEFAULTTONEAREST 2
  59 #endif
  60
  61 #include "vout.h"
  62
  63 /*****************************************************************************
  64  * picture_sys_t: direct buffer method descriptor
  65  *****************************************************************************
  66  * This structure is part of the picture descriptor, it describes the
  67  * DirectX specific properties of a direct buffer.
  68  *****************************************************************************/
  69 struct picture_sys_t
  70 {
  71     LPDIRECTDRAWSURFACE2 p_surface;
  72     LPDIRECTDRAWSURFACE2 p_front_surface;
  73     DDSURFACEDESC        ddsd;
  74 };
  75
  76 /*****************************************************************************
  77  * DirectDraw GUIDs.
  78  * Defining them here allows us to get rid of the dxguid library during
  79  * the linking stage.
  80  *****************************************************************************/
  81 #include <initguid.h>
  82 #undef GUID_EXT
  83 #define GUID_EXT
  84 DEFINE_GUID( IID_IDirectDraw2, 0xB3A6F3E0,0x2B43,0x11CF,0xA2,0xDE,0x00,0xAA,0x00,0xB9,0x33,0x56 );
  85 DEFINE_GUID( IID_IDirectDrawSurface2, 0x57805885,0x6eec,0x11cf,0x94,0x41,0xa8,0x23,0x03,0xc1,0x0e,0x27 );
  86
  87 /*****************************************************************************
  88  * Local prototypes.
  89  *****************************************************************************/
  90 static int  OpenVideo  ( vlc_object_t * );
  91 static void CloseVideo ( vlc_object_t * );
  92
  93 static int  Init      ( vout_thread_t * );
  94 static void End       ( vout_thread_t * );
  95 static int  Manage    ( vout_thread_t * );
  96 static void Display   ( vout_thread_t *, picture_t * );
  97 static void FirstDisplay( vout_thread_t *, picture_t * );
  98 static void SetPalette( vout_thread_t *, uint16_t *, uint16_t *, uint16_t * );
  99
 100 static int  NewPictureVec  ( vout_thread_t *, picture_t *, int );
 101 static void FreePictureVec ( vout_thread_t *, picture_t *, int );
 102 static int  UpdatePictureStruct( vout_thread_t *, picture_t *, int );
 103
 104 static int  DirectXInitDDraw      ( vout_thread_t *p_vout );
 105 static void DirectXCloseDDraw     ( vout_thread_t *p_vout );
 106 static int  DirectXCreateDisplay  ( vout_thread_t *p_vout );
 107 static void DirectXCloseDisplay   ( vout_thread_t *p_vout );
 108 static int  DirectXCreateSurface  ( vout_thread_t *p_vout,
 109                                     LPDIRECTDRAWSURFACE2 *, int, int, int );
 110 static void DirectXCloseSurface   ( vout_thread_t *p_vout,
 111                                     LPDIRECTDRAWSURFACE2 );
 112 static int  DirectXCreateClipper  ( vout_thread_t *p_vout );
 113 static void DirectXGetDDrawCaps   ( vout_thread_t *p_vout );
 114 static int  DirectXLockSurface    ( vout_thread_t *p_vout, picture_t *p_pic );
 115 static int  DirectXUnlockSurface  ( vout_thread_t *p_vout, picture_t *p_pic );
 116
 117 static DWORD DirectXFindColorkey( vout_thread_t *p_vout, uint32_t *i_color );
 118
 119 void SwitchWallpaperMode( vout_thread_t *, vlc_bool_t );
 120
 121 /* Object variables callbacks */
 122 static int FindDevicesCallback( vlc_object_t *, char const *,
 123                                 vlc_value_t, vlc_value_t, void * );
 124 static int WallpaperCallback( vlc_object_t *, char const *,
 125                               vlc_value_t, vlc_value_t, void * );
 126
 127 /*****************************************************************************
 128  * Module descriptor
 129  *****************************************************************************/
 130 #define HW_YUV_TEXT N_("Use hardware YUV->RGB conversions")
 131 #define HW_YUV_LONGTEXT N_( \
 132     "Try to use hardware acceleration for YUV->RGB conversions. " \
 133     "This option doesn't have any effect when using overlays." )
 134
 135 #define SYSMEM_TEXT N_("Use video buffers in system memory")
 136 #define SYSMEM_LONGTEXT N_( \
 137     "Create video buffers in system memory instead of video memory. This " \
 138     "isn't recommended as usually using video memory allows to benefit from " \
 139     "more hardware acceleration (like rescaling or YUV->RGB conversions). " \
 140     "This option doesn't have any effect when using overlays." )
 141
 142 #define TRIPLEBUF_TEXT N_("Use triple buffering for overlays")
 143 #define TRIPLEBUF_LONGTEXT N_( \
 144     "Try to use triple buffering when using YUV overlays. That results in " \
 145     "much better video quality (no flickering)." )
 146
 147 #define DEVICE_TEXT N_("Name of desired display device")
 148 #define DEVICE_LONGTEXT N_("In a multiple monitor configuration, you can " \
 149     "specify the Windows device name of the display that you want the video " \
 150     "window to open on. For example, \"\\\\.\\DISPLAY1\" or " \
 151     "\"\\\\.\\DISPLAY2\"." )
 152
 153 #define WALLPAPER_TEXT N_("Enable wallpaper mode ")
 154 #define WALLPAPER_LONGTEXT N_( \
 155     "The wallpaper mode allows you to display the video as the desktop " \
 156     "background. Note that this feature only works in overlay mode and " \
 157     "the desktop must not already have a wallpaper." )
 158
 159 static char *ppsz_dev[] = { "" };
 160 static char *ppsz_dev_text[] = { N_("Default") };
 161
 162 vlc_module_begin();
 163     set_shortname( "DirectX" );
 164     set_category( CAT_VIDEO );
 165     set_subcategory( SUBCAT_VIDEO_VOUT );
 166     add_bool( "directx-hw-yuv", 1, NULL, HW_YUV_TEXT, HW_YUV_LONGTEXT,
 167               VLC_TRUE );
 168     add_bool( "directx-use-sysmem", 0, NULL, SYSMEM_TEXT, SYSMEM_LONGTEXT,
 169               VLC_TRUE );
 170     add_bool( "directx-3buffering", 1, NULL, TRIPLEBUF_TEXT,
 171               TRIPLEBUF_LONGTEXT, VLC_TRUE );
 172
 173     add_string( "directx-device", "", NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
 174                 VLC_TRUE );
 175         change_string_list( ppsz_dev, ppsz_dev_text, FindDevicesCallback );
 176         change_action_add( FindDevicesCallback, N_("Refresh list") );
 177
 178     add_bool( "directx-wallpaper", 0, NULL, WALLPAPER_TEXT, WALLPAPER_LONGTEXT,
 179               VLC_TRUE );
 180
 181     set_description( _("DirectX video output") );
 182     set_capability( "video output", 100 );
 183     add_shortcut( "directx" );
 184     set_callbacks( OpenVideo, CloseVideo );
 185
 186     /* FIXME: Hack to avoid unregistering our window class */
 187     linked_with_a_crap_library_which_uses_atexit( );
 188 vlc_module_end();
 189
 190 #if 0 /* FIXME */
 191     /* check if we registered a window class because we need to
 192      * unregister it */
 193     WNDCLASS wndclass;
 194     if( GetClassInfo( GetModuleHandle(NULL), "VLC DirectX", &wndclass ) )
 195         UnregisterClass( "VLC DirectX", GetModuleHandle(NULL) );
 196 #endif
 197
 198 /*****************************************************************************
 199  * OpenVideo: allocate DirectX video thread output method
 200  *****************************************************************************
 201  * This function allocates and initialize the DirectX vout method.
 202  *****************************************************************************/
 203 static int OpenVideo( vlc_object_t *p_this )
 204 {
 205     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 206     vlc_value_t val;
 207     HMODULE huser32;
 208
 209     /* Allocate structure */
 210     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 211     if( p_vout->p_sys == NULL )
 212     {
 213         msg_Err( p_vout, "out of memory" );
 214         return VLC_ENOMEM;
 215     }
 216     memset( p_vout->p_sys, 0, sizeof( vout_sys_t ) );
 217
 218     /* Initialisations */
 219     p_vout->pf_init = Init;
 220     p_vout->pf_end = End;
 221     p_vout->pf_manage = Manage;
 222     p_vout->pf_render = NULL;
 223     p_vout->pf_display = FirstDisplay;
 224
 225     p_vout->p_sys->p_ddobject = NULL;
 226     p_vout->p_sys->p_display = NULL;
 227     p_vout->p_sys->p_current_surface = NULL;
 228     p_vout->p_sys->p_clipper = NULL;
 229     p_vout->p_sys->hwnd = p_vout->p_sys->hvideownd = NULL;
 230     p_vout->p_sys->hparent = p_vout->p_sys->hfswnd = NULL;
 231     p_vout->p_sys->i_changes = 0;
 232     p_vout->p_sys->b_wallpaper = 0;
 233     vlc_mutex_init( p_vout, &p_vout->p_sys->lock );
 234     SetRectEmpty( &p_vout->p_sys->rect_display );
 235     SetRectEmpty( &p_vout->p_sys->rect_parent );
 236
 237     /* Multimonitor stuff */
 238     p_vout->p_sys->hmonitor = NULL;
 239     p_vout->p_sys->p_display_driver = NULL;
 240     p_vout->p_sys->MonitorFromWindow = NULL;
 241     p_vout->p_sys->GetMonitorInfo = NULL;
 242     if( (huser32 = GetModuleHandle( _T("USER32") ) ) )
 243     {
 244         p_vout->p_sys->MonitorFromWindow = (HMONITOR (WINAPI *)( HWND, DWORD ))
 245             GetProcAddress( huser32, _T("MonitorFromWindow") );
 246         p_vout->p_sys->GetMonitorInfo =
 247 #ifndef UNICODE
 248             GetProcAddress( huser32, "GetMonitorInfoA" );
 249 #else
 250             GetProcAddress( huser32, _T("GetMonitorInfoW") );
 251 #endif
 252     }
 253
 254     var_Create( p_vout, "overlay", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 255     var_Create( p_vout, "directx-use-sysmem", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 256     var_Create( p_vout, "directx-hw-yuv", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 257     var_Create( p_vout, "directx-3buffering", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 258     var_Create( p_vout, "directx-device", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 259     var_Create( p_vout, "video-title", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 260     var_Create( p_vout, "disable-screensaver", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 261
 262     p_vout->p_sys->b_cursor_hidden = 0;
 263     p_vout->p_sys->i_lastmoved = mdate();
 264
 265     /* Set main window's size */
 266     p_vout->p_sys->i_window_width = p_vout->i_window_width;
 267     p_vout->p_sys->i_window_height = p_vout->i_window_height;
 268
 269     /* Create the Vout EventThread, this thread is created by us to isolate
 270      * the Win32 PeekMessage function calls. We want to do this because
 271      * Windows can stay blocked inside this call for a long time, and when
 272      * this happens it thus blocks vlc's video_output thread.
 273      * DirectXEventThread will take care of the creation of the video
 274      * window (because PeekMessage has to be called from the same thread which
 275      * created the window). */
 276     msg_Dbg( p_vout, "creating DirectXEventThread" );
 277     p_vout->p_sys->p_event =
 278         vlc_object_create( p_vout, sizeof(event_thread_t) );
 279     p_vout->p_sys->p_event->p_vout = p_vout;
 280     if( vlc_thread_create( p_vout->p_sys->p_event, "Vout Events Thread",
 281                            E_(EventThread), 0, 1 ) )
 282     {
 283         msg_Err( p_vout, "cannot create Vout EventThread" );
 284         vlc_object_release( p_vout->p_sys->p_event );
 285         p_vout->p_sys->p_event = NULL;
 286         goto error;
 287     }
 288
 289     if( p_vout->p_sys->p_event->b_error )
 290     {
 291         msg_Err( p_vout, "Vout EventThread failed" );
 292         goto error;
 293     }
 294
 295     vlc_object_attach( p_vout->p_sys->p_event, p_vout );
 296
 297     msg_Dbg( p_vout, "Vout EventThread running" );
 298
 299     /* Initialise DirectDraw */
 300     if( DirectXInitDDraw( p_vout ) )
 301     {
 302         msg_Err( p_vout, "cannot initialize DirectX DirectDraw" );
 303         goto error;
 304     }
 305
 306     /* Create the directx display */
 307     if( DirectXCreateDisplay( p_vout ) )
 308     {
 309         msg_Err( p_vout, "cannot initialize DirectX DirectDraw" );
 310         goto error;
 311     }
 312
 313     /* Variable to indicate if the window should be on top of others */
 314     /* Trigger a callback right now */
 315     var_Get( p_vout, "video-on-top", &val );
 316     var_Set( p_vout, "video-on-top", val );
 317
 318     /* Variable to indicate if the window should be on top of others */
 319     /* Trigger a callback right now */
 320     var_Create( p_vout, "directx-wallpaper", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 321     val.psz_string = _("Wallpaper");
 322     var_Change( p_vout, "directx-wallpaper", VLC_VAR_SETTEXT, &val, NULL );
 323     var_AddCallback( p_vout, "directx-wallpaper", WallpaperCallback, NULL );
 324     var_Get( p_vout, "directx-wallpaper", &val );
 325     var_Set( p_vout, "directx-wallpaper", val );
 326
 327     /* disable screensaver by temporarily changing system settings */
 328     p_vout->p_sys->i_spi_lowpowertimeout = 0;
 329     p_vout->p_sys->i_spi_powerofftimeout = 0;
 330     p_vout->p_sys->i_spi_screensavetimeout = 0;
 331     var_Get( p_vout, "disable-screensaver", &val);
 332     if( val.b_bool ) {
 333         msg_Dbg(p_vout, "disabling screen saver");
 334         SystemParametersInfo(SPI_GETLOWPOWERTIMEOUT,
 335             0, &(p_vout->p_sys->i_spi_lowpowertimeout), 0);
 336         if( 0 != p_vout->p_sys->i_spi_lowpowertimeout ) {
 337             SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT, 0, NULL, 0);
 338         }
 339         SystemParametersInfo(SPI_GETPOWEROFFTIMEOUT, 0,
 340             &(p_vout->p_sys->i_spi_powerofftimeout), 0);
 341         if( 0 != p_vout->p_sys->i_spi_powerofftimeout ) {
 342             SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT, 0, NULL, 0);
 343         }
 344         SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0,
 345             &(p_vout->p_sys->i_spi_screensavetimeout), 0);
 346         if( 0 != p_vout->p_sys->i_spi_screensavetimeout ) {
 347             SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, 0, NULL, 0);
 348         }
 349     }
 350
 351     return VLC_SUCCESS;
 352
 353  error:
 354     CloseVideo( VLC_OBJECT(p_vout) );
 355     return VLC_EGENERIC;
 356 }
 357
 358 /*****************************************************************************
 359  * Init: initialize DirectX video thread output method
 360  *****************************************************************************
 361  * This function create the directx surfaces needed by the output thread.
 362  * It is called at the beginning of the thread.
 363  *****************************************************************************/
 364 static int Init( vout_thread_t *p_vout )
 365 {
 366     int i_chroma_backup;
 367     vlc_value_t val;
 368
 369     /* Get a few default parameters */
 370     var_Get( p_vout, "overlay", &val );
 371     p_vout->p_sys->b_using_overlay = val.b_bool;
 372     var_Get( p_vout, "directx-use-sysmem", &val );
 373     p_vout->p_sys->b_use_sysmem = val.b_bool;
 374     var_Get( p_vout, "directx-hw-yuv", &val );
 375     p_vout->p_sys->b_hw_yuv = val.b_bool;
 376     var_Get( p_vout, "directx-3buffering", &val );
 377     p_vout->p_sys->b_3buf_overlay = val.b_bool;
 378
 379     /* Initialise DirectDraw if not already done.
 380      * We do this here because on multi-monitor systems we may have to
 381      * re-create the directdraw surfaces. */
 382     if( !p_vout->p_sys->p_ddobject &&
 383         DirectXInitDDraw( p_vout ) != VLC_SUCCESS )
 384     {
 385         msg_Err( p_vout, "cannot initialize DirectDraw" );
 386         return VLC_EGENERIC;
 387     }
 388
 389     /* Create the directx display */
 390     if( !p_vout->p_sys->p_display &&
 391         DirectXCreateDisplay( p_vout ) != VLC_SUCCESS )
 392     {
 393         msg_Err( p_vout, "cannot initialize DirectDraw" );
 394         return VLC_EGENERIC;
 395     }
 396
 397     /* Initialize the output structure.
 398      * Since DirectDraw can do rescaling for us, stick to the default
 399      * coordinates and aspect. */
 400     p_vout->output.i_width  = p_vout->render.i_width;
 401     p_vout->output.i_height = p_vout->render.i_height;
 402     p_vout->output.i_aspect = p_vout->render.i_aspect;
 403     p_vout->fmt_out = p_vout->fmt_in;
 404     E_(UpdateRects)( p_vout, VLC_TRUE );
 405
 406 #define MAX_DIRECTBUFFERS 1
 407     /* Right now we use only 1 directbuffer because we don't want the
 408      * video decoder to decode directly into direct buffers as they are
 409      * created into video memory and video memory is _really_ slow */
 410
 411     /* Choose the chroma we will try first. */
 412     switch( p_vout->render.i_chroma )
 413     {
 414         case VLC_FOURCC('Y','U','Y','2'):
 415         case VLC_FOURCC('Y','U','N','V'):
 416             p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
 417             break;
 418         case VLC_FOURCC('U','Y','V','Y'):
 419         case VLC_FOURCC('U','Y','N','V'):
 420         case VLC_FOURCC('Y','4','2','2'):
 421             p_vout->output.i_chroma = VLC_FOURCC('U','Y','V','Y');
 422             break;
 423         case VLC_FOURCC('Y','V','Y','U'):
 424             p_vout->output.i_chroma = VLC_FOURCC('Y','V','Y','U');
 425             break;
 426         default:
 427             p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
 428             break;
 429     }
 430
 431     NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
 432
 433     i_chroma_backup = p_vout->output.i_chroma;
 434
 435     if( !I_OUTPUTPICTURES )
 436     {
 437         /* hmmm, it didn't work! Let's try commonly supported chromas */
 438         if( p_vout->output.i_chroma != VLC_FOURCC('I','4','2','0') )
 439         {
 440             p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
 441             NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
 442         }
 443         if( !I_OUTPUTPICTURES )
 444         {
 445             /* hmmm, it still didn't work! Let's try another one */
 446             p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
 447             NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
 448         }
 449     }
 450
 451     if( !I_OUTPUTPICTURES )
 452     {
 453         /* If it still didn't work then don't try to use an overlay */
 454         p_vout->output.i_chroma = i_chroma_backup;
 455         p_vout->p_sys->b_using_overlay = 0;
 456         NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
 457     }
 458
 459     /* Change the window title bar text */
 460     PostMessage( p_vout->p_sys->hwnd, WM_VLC_CHANGE_TEXT, 0, 0 );
 461
 462     p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
 463     return VLC_SUCCESS;
 464 }
 465
 466 /*****************************************************************************
 467  * End: terminate Sys video thread output method
 468  *****************************************************************************
 469  * Terminate an output method created by Create.
 470  * It is called at the end of the thread.
 471  *****************************************************************************/
 472 static void End( vout_thread_t *p_vout )
 473 {
 474     FreePictureVec( p_vout, p_vout->p_picture, I_OUTPUTPICTURES );
 475
 476     DirectXCloseDisplay( p_vout );
 477     DirectXCloseDDraw( p_vout );
 478
 479     return;
 480 }
 481
 482 /*****************************************************************************
 483  * CloseVideo: destroy Sys video thread output method
 484  *****************************************************************************
 485  * Terminate an output method created by Create
 486  *****************************************************************************/
 487 static void CloseVideo( vlc_object_t *p_this )
 488 {
 489     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 490
 491     msg_Dbg( p_vout, "CloseVideo" );
 492
 493     if( p_vout->p_sys->p_event )
 494     {
 495         vlc_object_detach( p_vout->p_sys->p_event );
 496
 497         /* Kill Vout EventThread */
 498         vlc_object_kill( p_vout->p_sys->p_event );
 499
 500         /* we need to be sure Vout EventThread won't stay stuck in
 501          * GetMessage, so we send a fake message */
 502         if( p_vout->p_sys->hwnd )
 503         {
 504             PostMessage( p_vout->p_sys->hwnd, WM_NULL, 0, 0);
 505         }
 506
 507         vlc_thread_join( p_vout->p_sys->p_event );
 508         vlc_object_release( p_vout->p_sys->p_event );
 509     }
 510
 511     vlc_mutex_destroy( &p_vout->p_sys->lock );
 512
 513     /* Make sure the wallpaper is restored */
 514     SwitchWallpaperMode( p_vout, VLC_FALSE );
 515
 516     /* restore screensaver system settings */
 517     if( 0 != p_vout->p_sys->i_spi_lowpowertimeout ) {
 518         SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT,
 519             p_vout->p_sys->i_spi_lowpowertimeout, NULL, 0);
 520     }
 521     if( 0 != p_vout->p_sys->i_spi_powerofftimeout ) {
 522         SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT,
 523             p_vout->p_sys->i_spi_powerofftimeout, NULL, 0);
 524     }
 525     if( 0 != p_vout->p_sys->i_spi_screensavetimeout ) {
 526         SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT,
 527             p_vout->p_sys->i_spi_screensavetimeout, NULL, 0);
 528     }
 529
 530     free( p_vout->p_sys );
 531     p_vout->p_sys = NULL;
 532 }
 533
 534 /*****************************************************************************
 535  * Manage: handle Sys events
 536  *****************************************************************************
 537  * This function should be called regularly by the video output thread.
 538  * It returns a non null value if an error occurred.
 539  *****************************************************************************/
 540 static int Manage( vout_thread_t *p_vout )
 541 {
 542     /* If we do not control our window, we check for geometry changes
 543      * ourselves because the parent might not send us its events. */
 544     vlc_mutex_lock( &p_vout->p_sys->lock );
 545     if( p_vout->p_sys->hparent && !p_vout->b_fullscreen )
 546     {
 547         RECT rect_parent;
 548         POINT point;
 549
 550         vlc_mutex_unlock( &p_vout->p_sys->lock );
 551
 552         GetClientRect( p_vout->p_sys->hparent, &rect_parent );
 553         point.x = point.y = 0;
 554         ClientToScreen( p_vout->p_sys->hparent, &point );
 555         OffsetRect( &rect_parent, point.x, point.y );
 556
 557         if( !EqualRect( &rect_parent, &p_vout->p_sys->rect_parent ) )
 558         {
 559             p_vout->p_sys->rect_parent = rect_parent;
 560
 561             /* This one is to force the update even if only
 562              * the position has changed */
 563             SetWindowPos( p_vout->p_sys->hwnd, 0, 1, 1,
 564                           rect_parent.right - rect_parent.left,
 565                           rect_parent.bottom - rect_parent.top, 0 );
 566
 567             SetWindowPos( p_vout->p_sys->hwnd, 0, 0, 0,
 568                           rect_parent.right - rect_parent.left,
 569                           rect_parent.bottom - rect_parent.top, 0 );
 570         }
 571     }
 572     else
 573     {
 574         vlc_mutex_unlock( &p_vout->p_sys->lock );
 575     }
 576
 577     /*
 578      * Position Change
 579      */
 580     if( p_vout->p_sys->i_changes & DX_POSITION_CHANGE )
 581     {
 582         p_vout->p_sys->i_changes &= ~DX_POSITION_CHANGE;
 583
 584         /* Check if we are still on the same monitor */
 585         if( p_vout->p_sys->MonitorFromWindow &&
 586             p_vout->p_sys->hmonitor !=
 587                 p_vout->p_sys->MonitorFromWindow( p_vout->p_sys->hwnd,
 588                                                   MONITOR_DEFAULTTONEAREST ) )
 589         {
 590             /* This will force the vout core to recreate the picture buffers */
 591             p_vout->i_changes |= VOUT_PICTURE_BUFFERS_CHANGE;
 592         }
 593     }
 594
 595     /* Check for cropping / aspect changes */
 596     if( p_vout->i_changes & VOUT_CROP_CHANGE ||
 597         p_vout->i_changes & VOUT_ASPECT_CHANGE )
 598     {
 599         p_vout->i_changes &= ~VOUT_CROP_CHANGE;
 600         p_vout->i_changes &= ~VOUT_ASPECT_CHANGE;
 601
 602         p_vout->fmt_out.i_x_offset = p_vout->fmt_in.i_x_offset;
 603         p_vout->fmt_out.i_y_offset = p_vout->fmt_in.i_y_offset;
 604         p_vout->fmt_out.i_visible_width = p_vout->fmt_in.i_visible_width;
 605         p_vout->fmt_out.i_visible_height = p_vout->fmt_in.i_visible_height;
 606         p_vout->fmt_out.i_aspect = p_vout->fmt_in.i_aspect;
 607         p_vout->fmt_out.i_sar_num = p_vout->fmt_in.i_sar_num;
 608         p_vout->fmt_out.i_sar_den = p_vout->fmt_in.i_sar_den;
 609         p_vout->output.i_aspect = p_vout->fmt_in.i_aspect;
 610         E_(UpdateRects)( p_vout, VLC_TRUE );
 611     }
 612
 613     /* We used to call the Win32 PeekMessage function here to read the window
 614      * messages. But since window can stay blocked into this function for a
 615      * long time (for example when you move your window on the screen), I
 616      * decided to isolate PeekMessage in another thread. */
 617
 618     if( p_vout->p_sys->i_changes & DX_WALLPAPER_CHANGE )
 619     {
 620         SwitchWallpaperMode( p_vout, !p_vout->p_sys->b_wallpaper );
 621         p_vout->p_sys->i_changes &= ~DX_WALLPAPER_CHANGE;
 622         DirectDrawUpdateOverlay( p_vout );
 623     }
 624
 625     /*
 626      * Fullscreen change
 627      */
 628     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE
 629         || p_vout->p_sys->i_changes & VOUT_FULLSCREEN_CHANGE )
 630     {
 631         Win32ToggleFullscreen( p_vout );
 632
 633         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 634         p_vout->p_sys->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 635     }
 636
 637     /*
 638      * Pointer change
 639      */
 640     if( p_vout->b_fullscreen && !p_vout->p_sys->b_cursor_hidden &&
 641         (mdate() - p_vout->p_sys->i_lastmoved) > 5000000 )
 642     {
 643         POINT point;
 644         HWND hwnd;
 645
 646         /* Hide the cursor only if it is inside our window */
 647         GetCursorPos( &point );
 648         hwnd = WindowFromPoint(point);
 649         if( hwnd == p_vout->p_sys->hwnd || hwnd == p_vout->p_sys->hvideownd )
 650         {
 651             PostMessage( p_vout->p_sys->hwnd, WM_VLC_HIDE_MOUSE, 0, 0 );
 652         }
 653         else
 654         {
 655             p_vout->p_sys->i_lastmoved = mdate();
 656         }
 657     }
 658
 659     /*
 660      * "Always on top" status change
 661      */
 662     if( p_vout->p_sys->b_on_top_change )
 663     {
 664         vlc_value_t val;
 665         HMENU hMenu = GetSystemMenu( p_vout->p_sys->hwnd, FALSE );
 666
 667         var_Get( p_vout, "video-on-top", &val );
 668
 669         /* Set the window on top if necessary */
 670         if( val.b_bool && !( GetWindowLong( p_vout->p_sys->hwnd, GWL_EXSTYLE )
 671                            & WS_EX_TOPMOST ) )
 672         {
 673             CheckMenuItem( hMenu, IDM_TOGGLE_ON_TOP,
 674                            MF_BYCOMMAND | MFS_CHECKED );
 675             SetWindowPos( p_vout->p_sys->hwnd, HWND_TOPMOST, 0, 0, 0, 0,
 676                           SWP_NOSIZE | SWP_NOMOVE );
 677         }
 678         else
 679         /* The window shouldn't be on top */
 680         if( !val.b_bool && ( GetWindowLong( p_vout->p_sys->hwnd, GWL_EXSTYLE )
 681                            & WS_EX_TOPMOST ) )
 682         {
 683             CheckMenuItem( hMenu, IDM_TOGGLE_ON_TOP,
 684                            MF_BYCOMMAND | MFS_UNCHECKED );
 685             SetWindowPos( p_vout->p_sys->hwnd, HWND_NOTOPMOST, 0, 0, 0, 0,
 686                           SWP_NOSIZE | SWP_NOMOVE );
 687         }
 688
 689         p_vout->p_sys->b_on_top_change = VLC_FALSE;
 690     }
 691
 692     /* Check if the event thread is still running */
 693     if( p_vout->p_sys->p_event->b_die )
 694     {
 695         return VLC_EGENERIC; /* exit */
 696     }
 697
 698     return VLC_SUCCESS;
 699 }
 700
 701 /*****************************************************************************
 702  * Display: displays previously rendered output
 703  *****************************************************************************
 704  * This function sends the currently rendered image to the display, wait until
 705  * it is displayed and switch the two rendering buffers, preparing next frame.
 706  *****************************************************************************/
 707 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
 708 {
 709     HRESULT dxresult;
 710
 711     if( (p_vout->p_sys->p_display == NULL) )
 712     {
 713         msg_Warn( p_vout, "no display!" );
 714         return;
 715     }
 716
 717     /* Our surface can be lost so be sure to check this
 718      * and restore it if need be */
 719     if( IDirectDrawSurface2_IsLost( p_vout->p_sys->p_display )
 720         == DDERR_SURFACELOST )
 721     {
 722         if( IDirectDrawSurface2_Restore( p_vout->p_sys->p_display ) == DD_OK &&
 723             p_vout->p_sys->b_using_overlay )
 724             DirectDrawUpdateOverlay( p_vout );
 725     }
 726
 727     if( !p_vout->p_sys->b_using_overlay )
 728     {
 729         DDBLTFX  ddbltfx;
 730
 731         /* We ask for the "NOTEARING" option */
 732         memset( &ddbltfx, 0, sizeof(DDBLTFX) );
 733         ddbltfx.dwSize = sizeof(DDBLTFX);
 734         ddbltfx.dwDDFX = DDBLTFX_NOTEARING;
 735
 736         /* Blit video surface to display */
 737         dxresult = IDirectDrawSurface2_Blt( p_vout->p_sys->p_display,
 738                                             &p_vout->p_sys->rect_dest_clipped,
 739                                             p_pic->p_sys->p_surface,
 740                                             &p_vout->p_sys->rect_src_clipped,
 741                                             DDBLT_ASYNC, &ddbltfx );
 742         if( dxresult != DD_OK )
 743         {
 744             msg_Warn( p_vout, "could not blit surface (error %li)", dxresult );
 745             return;
 746         }
 747     }
 748     else /* using overlay */
 749     {
 750         /* Flip the overlay buffers if we are using back buffers */
 751         if( p_pic->p_sys->p_front_surface == p_pic->p_sys->p_surface )
 752         {
 753             return;
 754         }
 755
 756         dxresult = IDirectDrawSurface2_Flip( p_pic->p_sys->p_front_surface,
 757                                              NULL, DDFLIP_WAIT );
 758         if( dxresult != DD_OK )
 759         {
 760             msg_Warn( p_vout, "could not flip overlay (error %li)", dxresult );
 761         }
 762
 763         /* set currently displayed pic */
 764         p_vout->p_sys->p_current_surface = p_pic->p_sys->p_front_surface;
 765
 766         /* Lock surface to get all the required info */
 767         if( DirectXLockSurface( p_vout, p_pic ) )
 768         {
 769             /* AAARRGG */
 770             msg_Warn( p_vout, "cannot lock surface" );
 771             return;
 772         }
 773         DirectXUnlockSurface( p_vout, p_pic );
 774     }
 775 }
 776
 777 /*
 778 ** this function is only used once when the first picture is received
 779 ** this function will show the video window once video is ready for
 780 ** display.
 781 */
 782
 783 static void FirstDisplay( vout_thread_t *p_vout, picture_t *p_pic )
 784 {
 785     /* get initial picture rendered on overlay surface */
 786     Display(p_vout, p_pic);
 787
 788     IDirectDraw_WaitForVerticalBlank(p_vout->p_sys->p_ddobject,
 789             DDWAITVB_BLOCKBEGIN, NULL);
 790
 791     if( p_vout->p_sys->b_using_overlay )
 792     {
 793         /* set the colorkey as the backgound brush for the video window */
 794         SetClassLong( p_vout->p_sys->hvideownd, GCL_HBRBACKGROUND,
 795                       (LONG)CreateSolidBrush( p_vout->p_sys->i_rgb_colorkey ) );
 796     }
 797     /*
 798     ** Video window is initially hidden, show it now since we got a
 799     ** picture to show.
 800     */
 801     SetWindowPos( p_vout->p_sys->hvideownd, NULL, 0, 0, 0, 0,
 802         SWP_ASYNCWINDOWPOS|
 803         SWP_FRAMECHANGED|
 804         SWP_SHOWWINDOW|
 805         SWP_NOMOVE|
 806         SWP_NOSIZE|
 807         SWP_NOZORDER );
 808
 809     /* use and restores proper display function for further pictures */
 810     p_vout->pf_display = Display;
 811 }
 812
 813 /* following functions are local */
 814
 815 /*****************************************************************************
 816  * DirectXEnumCallback: Device enumeration
 817  *****************************************************************************
 818  * This callback function is called by DirectDraw once for each
 819  * available DirectDraw device.
 820  *****************************************************************************/
 821 BOOL WINAPI DirectXEnumCallback( GUID* p_guid, LPTSTR psz_desc,
 822                                  LPTSTR psz_drivername, VOID* p_context,
 823                                  HMONITOR hmon )
 824 {
 825     vout_thread_t *p_vout = (vout_thread_t *)p_context;
 826     vlc_value_t device;
 827
 828     msg_Dbg( p_vout, "DirectXEnumCallback: %s, %s", psz_desc, psz_drivername );
 829
 830     if( hmon )
 831     {
 832         var_Get( p_vout, "directx-device", &device );
 833
 834         if( ( !device.psz_string || !*device.psz_string ) &&
 835             hmon == p_vout->p_sys->hmonitor )
 836         {
 837             free( device.psz_string );
 838         }
 839         else if( strcmp( psz_drivername, device.psz_string ) == 0 )
 840         {
 841             MONITORINFO monitor_info;
 842             monitor_info.cbSize = sizeof( MONITORINFO );
 843
 844             if( p_vout->p_sys->GetMonitorInfo( hmon, &monitor_info ) )
 845             {
 846                 RECT rect;
 847
 848                 /* Move window to the right screen */
 849                 GetWindowRect( p_vout->p_sys->hwnd, &rect );
 850                 if( !IntersectRect( &rect, &rect, &monitor_info.rcWork ) )
 851                 {
 852                     rect.left = monitor_info.rcWork.left;
 853                     rect.top = monitor_info.rcWork.top;
 854                     msg_Dbg( p_vout, "DirectXEnumCallback: setting window "
 855                              "position to %ld,%ld", rect.left, rect.top );
 856                     SetWindowPos( p_vout->p_sys->hwnd, NULL,
 857                                   rect.left, rect.top, 0, 0,
 858                                   SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 859                 }
 860             }
 861
 862             p_vout->p_sys->hmonitor = hmon;
 863             free( device.psz_string );
 864         }
 865         else
 866         {
 867             free( device.psz_string );
 868             return TRUE; /* Keep enumerating */
 869         }
 870
 871         msg_Dbg( p_vout, "selecting %s, %s", psz_desc, psz_drivername );
 872         p_vout->p_sys->p_display_driver = malloc( sizeof(GUID) );
 873         if( p_vout->p_sys->p_display_driver )
 874             memcpy( p_vout->p_sys->p_display_driver, p_guid, sizeof(GUID) );
 875     }
 876
 877     return TRUE; /* Keep enumerating */
 878 }
 879
 880 /*****************************************************************************
 881  * DirectXInitDDraw: Takes care of all the DirectDraw initialisations
 882  *****************************************************************************
 883  * This function initialise and allocate resources for DirectDraw.
 884  *****************************************************************************/
 885 static int DirectXInitDDraw( vout_thread_t *p_vout )
 886 {
 887     HRESULT dxresult;
 888     HRESULT (WINAPI *OurDirectDrawCreate)(GUID *,LPDIRECTDRAW *,IUnknown *);
 889     HRESULT (WINAPI *OurDirectDrawEnumerateEx)( LPDDENUMCALLBACKEXA, LPVOID,
 890                                                 DWORD );
 891     LPDIRECTDRAW p_ddobject;
 892
 893     msg_Dbg( p_vout, "DirectXInitDDraw" );
 894
 895     /* Load direct draw DLL */
 896     p_vout->p_sys->hddraw_dll = LoadLibrary(_T("DDRAW.DLL"));
 897     if( p_vout->p_sys->hddraw_dll == NULL )
 898     {
 899         msg_Warn( p_vout, "DirectXInitDDraw failed loading ddraw.dll" );
 900         goto error;
 901     }
 902
 903     OurDirectDrawCreate =
 904       (void *)GetProcAddress( p_vout->p_sys->hddraw_dll,
 905                               _T("DirectDrawCreate") );
 906     if( OurDirectDrawCreate == NULL )
 907     {
 908         msg_Err( p_vout, "DirectXInitDDraw failed GetProcAddress" );
 909         goto error;
 910     }
 911
 912     OurDirectDrawEnumerateEx =
 913       (void *)GetProcAddress( p_vout->p_sys->hddraw_dll,
 914 #ifndef UNICODE
 915                               "DirectDrawEnumerateExA" );
 916 #else
 917                               _T("DirectDrawEnumerateExW") );
 918 #endif
 919
 920     if( OurDirectDrawEnumerateEx && p_vout->p_sys->MonitorFromWindow )
 921     {
 922         vlc_value_t device;
 923
 924         var_Get( p_vout, "directx-device", &device );
 925         if( device.psz_string )
 926         {
 927             msg_Dbg( p_vout, "directx-device: %s", device.psz_string );
 928             free( device.psz_string );
 929         }
 930
 931         p_vout->p_sys->hmonitor =
 932             p_vout->p_sys->MonitorFromWindow( p_vout->p_sys->hwnd,
 933                                               MONITOR_DEFAULTTONEAREST );
 934
 935         /* Enumerate displays */
 936         OurDirectDrawEnumerateEx( DirectXEnumCallback, p_vout,
 937                                   DDENUM_ATTACHEDSECONDARYDEVICES );
 938     }
 939
 940     /* Initialize DirectDraw now */
 941     dxresult = OurDirectDrawCreate( p_vout->p_sys->p_display_driver,
 942                                     &p_ddobject, NULL );
 943     if( dxresult != DD_OK )
 944     {
 945         msg_Err( p_vout, "DirectXInitDDraw cannot initialize DDraw" );
 946         goto error;
 947     }
 948
 949     /* Get the IDirectDraw2 interface */
 950     dxresult = IDirectDraw_QueryInterface( p_ddobject, &IID_IDirectDraw2,
 951                                         (LPVOID *)&p_vout->p_sys->p_ddobject );
 952     /* Release the unused interface */
 953     IDirectDraw_Release( p_ddobject );
 954     if( dxresult != DD_OK )
 955     {
 956         msg_Err( p_vout, "cannot get IDirectDraw2 interface" );
 957         goto error;
 958     }
 959
 960     /* Set DirectDraw Cooperative level, ie what control we want over Windows
 961      * display */
 962     dxresult = IDirectDraw2_SetCooperativeLevel( p_vout->p_sys->p_ddobject,
 963                                                  NULL, DDSCL_NORMAL );
 964     if( dxresult != DD_OK )
 965     {
 966         msg_Err( p_vout, "cannot set direct draw cooperative level" );
 967         goto error;
 968     }
 969
 970     /* Get the size of the current display device */
 971     if( p_vout->p_sys->hmonitor && p_vout->p_sys->GetMonitorInfo )
 972     {
 973         MONITORINFO monitor_info;
 974         monitor_info.cbSize = sizeof( MONITORINFO );
 975         p_vout->p_sys->GetMonitorInfo( p_vout->p_sys->hmonitor,
 976                                        &monitor_info );
 977         p_vout->p_sys->rect_display = monitor_info.rcMonitor;
 978     }
 979     else
 980     {
 981         p_vout->p_sys->rect_display.left = 0;
 982         p_vout->p_sys->rect_display.top = 0;
 983         p_vout->p_sys->rect_display.right  = GetSystemMetrics(SM_CXSCREEN);
 984         p_vout->p_sys->rect_display.bottom = GetSystemMetrics(SM_CYSCREEN);
 985     }
 986
 987     msg_Dbg( p_vout, "screen dimensions (%lix%li,%lix%li)",
 988              p_vout->p_sys->rect_display.left,
 989              p_vout->p_sys->rect_display.top,
 990              p_vout->p_sys->rect_display.right,
 991              p_vout->p_sys->rect_display.bottom );
 992
 993     /* Probe the capabilities of the hardware */
 994     DirectXGetDDrawCaps( p_vout );
 995
 996     msg_Dbg( p_vout, "End DirectXInitDDraw" );
 997     return VLC_SUCCESS;
 998
 999  error:
1000     if( p_vout->p_sys->p_ddobject )
1001         IDirectDraw2_Release( p_vout->p_sys->p_ddobject );
1002     if( p_vout->p_sys->hddraw_dll )
1003         FreeLibrary( p_vout->p_sys->hddraw_dll );
1004     p_vout->p_sys->hddraw_dll = NULL;
1005     p_vout->p_sys->p_ddobject = NULL;
1006     return VLC_EGENERIC;
1007 }
1008
1009 /*****************************************************************************
1010  * DirectXCreateDisplay: create the DirectDraw display.
1011  *****************************************************************************
1012  * Create and initialize display according to preferences specified in the vout
1013  * thread fields.
1014  *****************************************************************************/
1015 static int DirectXCreateDisplay( vout_thread_t *p_vout )
1016 {
1017     HRESULT              dxresult;
1018     DDSURFACEDESC        ddsd;
1019     LPDIRECTDRAWSURFACE  p_display;
1020
1021     msg_Dbg( p_vout, "DirectXCreateDisplay" );
1022
1023     /* Now get the primary surface. This surface is what you actually see
1024      * on your screen */
1025     memset( &ddsd, 0, sizeof( DDSURFACEDESC ));
1026     ddsd.dwSize = sizeof(DDSURFACEDESC);
1027     ddsd.dwFlags = DDSD_CAPS;
1028     ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
1029
1030     dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1031                                            &ddsd, &p_display, NULL );
1032     if( dxresult != DD_OK )
1033     {
1034         msg_Err( p_vout, "cannot get primary surface (error %li)", dxresult );
1035         return VLC_EGENERIC;
1036     }
1037
1038     dxresult = IDirectDrawSurface_QueryInterface( p_display,
1039                                          &IID_IDirectDrawSurface2,
1040                                          (LPVOID *)&p_vout->p_sys->p_display );
1041     /* Release the old interface */
1042     IDirectDrawSurface_Release( p_display );
1043     if ( dxresult != DD_OK )
1044     {
1045         msg_Err( p_vout, "cannot query IDirectDrawSurface2 interface "
1046                          "(error %li)", dxresult );
1047         return VLC_EGENERIC;
1048     }
1049
1050     /* The clipper will be used only in non-overlay mode */
1051     DirectXCreateClipper( p_vout );
1052
1053     /* Make sure the colorkey will be painted */
1054     p_vout->p_sys->i_colorkey = 1;
1055     p_vout->p_sys->i_rgb_colorkey =
1056         DirectXFindColorkey( p_vout, &p_vout->p_sys->i_colorkey );
1057
1058     E_(UpdateRects)( p_vout, VLC_TRUE );
1059
1060     return VLC_SUCCESS;
1061 }
1062
1063 /*****************************************************************************
1064  * DirectXCreateClipper: Create a clipper that will be used when blitting the
1065  *                       RGB surface to the main display.
1066  *****************************************************************************
1067  * This clipper prevents us to modify by mistake anything on the screen
1068  * which doesn't belong to our window. For example when a part of our video
1069  * window is hidden by another window.
1070  *****************************************************************************/
1071 static int DirectXCreateClipper( vout_thread_t *p_vout )
1072 {
1073     HRESULT dxresult;
1074
1075     msg_Dbg( p_vout, "DirectXCreateClipper" );
1076
1077     /* Create the clipper */
1078     dxresult = IDirectDraw2_CreateClipper( p_vout->p_sys->p_ddobject, 0,
1079                                            &p_vout->p_sys->p_clipper, NULL );
1080     if( dxresult != DD_OK )
1081     {
1082         msg_Warn( p_vout, "cannot create clipper (error %li)", dxresult );
1083         goto error;
1084     }
1085
1086     /* Associate the clipper to the window */
1087     dxresult = IDirectDrawClipper_SetHWnd( p_vout->p_sys->p_clipper, 0,
1088                                            p_vout->p_sys->hvideownd );
1089     if( dxresult != DD_OK )
1090     {
1091         msg_Warn( p_vout, "cannot attach clipper to window (error %li)",
1092                           dxresult );
1093         goto error;
1094     }
1095
1096     /* associate the clipper with the surface */
1097     dxresult = IDirectDrawSurface_SetClipper(p_vout->p_sys->p_display,
1098                                              p_vout->p_sys->p_clipper);
1099     if( dxresult != DD_OK )
1100     {
1101         msg_Warn( p_vout, "cannot attach clipper to surface (error %li)",
1102                           dxresult );
1103         goto error;
1104     }
1105
1106     return VLC_SUCCESS;
1107
1108  error:
1109     if( p_vout->p_sys->p_clipper )
1110     {
1111         IDirectDrawClipper_Release( p_vout->p_sys->p_clipper );
1112     }
1113     p_vout->p_sys->p_clipper = NULL;
1114     return VLC_EGENERIC;
1115 }
1116
1117 /*****************************************************************************
1118  * DirectXCreateSurface: create an YUV overlay or RGB surface for the video.
1119  *****************************************************************************
1120  * The best method of display is with an YUV overlay because the YUV->RGB
1121  * conversion is done in hardware.
1122  * You can also create a plain RGB surface.
1123  * ( Maybe we could also try an RGB overlay surface, which could have hardware
1124  * scaling and which would also be faster in window mode because you don't
1125  * need to do any blitting to the main display...)
1126  *****************************************************************************/
1127 static int DirectXCreateSurface( vout_thread_t *p_vout,
1128                                  LPDIRECTDRAWSURFACE2 *pp_surface_final,
1129                                  int i_chroma, int b_overlay,
1130                                  int i_backbuffers )
1131 {
1132     HRESULT dxresult;
1133     LPDIRECTDRAWSURFACE p_surface;
1134     DDSURFACEDESC ddsd;
1135
1136     /* Create the video surface */
1137     if( b_overlay )
1138     {
1139         /* Now try to create the YUV overlay surface.
1140          * This overlay will be displayed on top of the primary surface.
1141          * A color key is used to determine whether or not the overlay will be
1142          * displayed, ie the overlay will be displayed in place of the primary
1143          * surface wherever the primary surface will have this color.
1144          * The video window has been created with a background of this color so
1145          * the overlay will be only displayed on top of this window */
1146
1147         memset( &ddsd, 0, sizeof( DDSURFACEDESC ));
1148         ddsd.dwSize = sizeof(DDSURFACEDESC);
1149         ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1150         ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
1151         ddsd.ddpfPixelFormat.dwFourCC = i_chroma;
1152         ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT;
1153         ddsd.dwFlags |= (i_backbuffers ? DDSD_BACKBUFFERCOUNT : 0);
1154         ddsd.ddsCaps.dwCaps = DDSCAPS_OVERLAY | DDSCAPS_VIDEOMEMORY;
1155         ddsd.ddsCaps.dwCaps |= (i_backbuffers ? DDSCAPS_COMPLEX | DDSCAPS_FLIP
1156                                 : 0 );
1157         ddsd.dwHeight = p_vout->render.i_height;
1158         ddsd.dwWidth = p_vout->render.i_width;
1159         ddsd.dwBackBufferCount = i_backbuffers;
1160
1161         dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1162                                                &ddsd, &p_surface, NULL );
1163         if( dxresult != DD_OK )
1164         {
1165             *pp_surface_final = NULL;
1166             return VLC_EGENERIC;
1167         }
1168     }
1169
1170     if( !b_overlay )
1171     {
1172         vlc_bool_t b_rgb_surface =
1173             ( i_chroma == VLC_FOURCC('R','G','B','2') )
1174           || ( i_chroma == VLC_FOURCC('R','V','1','5') )
1175            || ( i_chroma == VLC_FOURCC('R','V','1','6') )
1176             || ( i_chroma == VLC_FOURCC('R','V','2','4') )
1177              || ( i_chroma == VLC_FOURCC('R','V','3','2') );
1178
1179         memset( &ddsd, 0, sizeof( DDSURFACEDESC ) );
1180         ddsd.dwSize = sizeof(DDSURFACEDESC);
1181         ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1182         ddsd.dwFlags = DDSD_HEIGHT | DDSD_WIDTH | DDSD_CAPS;
1183         ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
1184         ddsd.dwHeight = p_vout->render.i_height;
1185         ddsd.dwWidth = p_vout->render.i_width;
1186
1187         if( p_vout->p_sys->b_use_sysmem )
1188             ddsd.ddsCaps.dwCaps |= DDSCAPS_SYSTEMMEMORY;
1189         else
1190             ddsd.ddsCaps.dwCaps |= DDSCAPS_VIDEOMEMORY;
1191
1192         if( !b_rgb_surface )
1193         {
1194             ddsd.dwFlags |= DDSD_PIXELFORMAT;
1195             ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
1196             ddsd.ddpfPixelFormat.dwFourCC = i_chroma;
1197         }
1198
1199         dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1200                                                &ddsd, &p_surface, NULL );
1201         if( dxresult != DD_OK )
1202         {
1203             *pp_surface_final = NULL;
1204             return VLC_EGENERIC;
1205         }
1206     }
1207
1208     /* Now that the surface is created, try to get a newer DirectX interface */
1209     dxresult = IDirectDrawSurface_QueryInterface( p_surface,
1210                                      &IID_IDirectDrawSurface2,
1211                                      (LPVOID *)pp_surface_final );
1212     IDirectDrawSurface_Release( p_surface );    /* Release the old interface */
1213     if ( dxresult != DD_OK )
1214     {
1215         msg_Err( p_vout, "cannot query IDirectDrawSurface2 interface "
1216                          "(error %li)", dxresult );
1217         *pp_surface_final = NULL;
1218         return VLC_EGENERIC;
1219     }
1220
1221     if( b_overlay )
1222     {
1223         /* Check the overlay is useable as some graphics cards allow creating
1224          * several overlays but only one can be used at one time. */
1225         p_vout->p_sys->p_current_surface = *pp_surface_final;
1226         if( DirectDrawUpdateOverlay( p_vout ) != VLC_SUCCESS )
1227         {
1228             IDirectDrawSurface2_Release( *pp_surface_final );
1229             *pp_surface_final = NULL;
1230             msg_Err( p_vout, "overlay unuseable (might already be in use)" );
1231             return VLC_EGENERIC;
1232         }
1233     }
1234
1235     return VLC_SUCCESS;
1236 }
1237
1238 /*****************************************************************************
1239  * DirectDrawUpdateOverlay: Move or resize overlay surface on video display.
1240  *****************************************************************************
1241  * This function is used to move or resize an overlay surface on the screen.
1242  * Ususally the overlay is moved by the user and thus, by a move or resize
1243  * event (in Manage).
1244  *****************************************************************************/
1245 int DirectDrawUpdateOverlay( vout_thread_t *p_vout )
1246 {
1247     DDOVERLAYFX     ddofx;
1248     DWORD           dwFlags;
1249     HRESULT         dxresult;
1250     RECT            rect_src = p_vout->p_sys->rect_src_clipped;
1251     RECT            rect_dest = p_vout->p_sys->rect_dest_clipped;
1252
1253     if( !p_vout->p_sys->b_using_overlay ) return VLC_EGENERIC;
1254
1255     if( p_vout->p_sys->b_wallpaper )
1256     {
1257         int i_x, i_y, i_width, i_height;
1258
1259         rect_src.left = p_vout->fmt_out.i_x_offset;
1260         rect_src.top = p_vout->fmt_out.i_y_offset;
1261         rect_src.right = rect_src.left + p_vout->fmt_out.i_visible_width;
1262         rect_src.bottom = rect_src.top + p_vout->fmt_out.i_visible_height;
1263
1264         rect_dest = p_vout->p_sys->rect_display;
1265         vout_PlacePicture( p_vout, rect_dest.right, rect_dest.bottom,
1266                            &i_x, &i_y, &i_width, &i_height );
1267
1268         rect_dest.left += i_x;
1269         rect_dest.right = rect_dest.left + i_width;
1270         rect_dest.top += i_y;
1271         rect_dest.bottom = rect_dest.top + i_height;
1272     }
1273
1274     vlc_mutex_lock( &p_vout->p_sys->lock );
1275     if( p_vout->p_sys->p_current_surface == NULL )
1276     {
1277         vlc_mutex_unlock( &p_vout->p_sys->lock );
1278         return VLC_EGENERIC;
1279     }
1280
1281     /* The new window dimensions should already have been computed by the
1282      * caller of this function */
1283
1284     /* Position and show the overlay */
1285     memset(&ddofx, 0, sizeof(DDOVERLAYFX));
1286     ddofx.dwSize = sizeof(DDOVERLAYFX);
1287     ddofx.dckDestColorkey.dwColorSpaceLowValue = p_vout->p_sys->i_colorkey;
1288     ddofx.dckDestColorkey.dwColorSpaceHighValue = p_vout->p_sys->i_colorkey;
1289
1290     dwFlags = DDOVER_SHOW | DDOVER_KEYDESTOVERRIDE;
1291
1292     dxresult = IDirectDrawSurface2_UpdateOverlay(
1293                    p_vout->p_sys->p_current_surface,
1294                    &rect_src, p_vout->p_sys->p_display, &rect_dest,
1295                    dwFlags, &ddofx );
1296
1297     vlc_mutex_unlock( &p_vout->p_sys->lock );
1298
1299     if(dxresult != DD_OK)
1300     {
1301         msg_Warn( p_vout, "DirectDrawUpdateOverlay cannot move/resize overlay" );
1302         return VLC_EGENERIC;
1303     }
1304
1305     return VLC_SUCCESS;
1306 }
1307
1308 /*****************************************************************************
1309  * DirectXCloseDDraw: Release the DDraw object allocated by DirectXInitDDraw
1310  *****************************************************************************
1311  * This function returns all resources allocated by DirectXInitDDraw.
1312  *****************************************************************************/
1313 static void DirectXCloseDDraw( vout_thread_t *p_vout )
1314 {
1315     msg_Dbg( p_vout, "DirectXCloseDDraw" );
1316     if( p_vout->p_sys->p_ddobject != NULL )
1317     {
1318         IDirectDraw2_Release(p_vout->p_sys->p_ddobject);
1319         p_vout->p_sys->p_ddobject = NULL;
1320     }
1321
1322     if( p_vout->p_sys->hddraw_dll != NULL )
1323     {
1324         FreeLibrary( p_vout->p_sys->hddraw_dll );
1325         p_vout->p_sys->hddraw_dll = NULL;
1326     }
1327
1328     free( p_vout->p_sys->p_display_driver );
1329     p_vout->p_sys->p_display_driver = NULL;
1330
1331     p_vout->p_sys->hmonitor = NULL;
1332 }
1333
1334 /*****************************************************************************
1335  * DirectXCloseDisplay: close and reset the DirectX display device
1336  *****************************************************************************
1337  * This function returns all resources allocated by DirectXCreateDisplay.
1338  *****************************************************************************/
1339 static void DirectXCloseDisplay( vout_thread_t *p_vout )
1340 {
1341     msg_Dbg( p_vout, "DirectXCloseDisplay" );
1342
1343     if( p_vout->p_sys->p_clipper != NULL )
1344     {
1345         msg_Dbg( p_vout, "DirectXCloseDisplay clipper" );
1346         IDirectDrawClipper_Release( p_vout->p_sys->p_clipper );
1347         p_vout->p_sys->p_clipper = NULL;
1348     }
1349
1350     if( p_vout->p_sys->p_display != NULL )
1351     {
1352         msg_Dbg( p_vout, "DirectXCloseDisplay display" );
1353         IDirectDrawSurface2_Release( p_vout->p_sys->p_display );
1354         p_vout->p_sys->p_display = NULL;
1355     }
1356 }
1357
1358 /*****************************************************************************
1359  * DirectXCloseSurface: close the YUV overlay or RGB surface.
1360  *****************************************************************************
1361  * This function returns all resources allocated for the surface.
1362  *****************************************************************************/
1363 static void DirectXCloseSurface( vout_thread_t *p_vout,
1364                                  LPDIRECTDRAWSURFACE2 p_surface )
1365 {
1366     msg_Dbg( p_vout, "DirectXCloseSurface" );
1367     if( p_surface != NULL )
1368     {
1369         IDirectDrawSurface2_Release( p_surface );
1370     }
1371 }
1372
1373 /*****************************************************************************
1374  * NewPictureVec: allocate a vector of identical pictures
1375  *****************************************************************************
1376  * Returns 0 on success, -1 otherwise
1377  *****************************************************************************/
1378 static int NewPictureVec( vout_thread_t *p_vout, picture_t *p_pic,
1379                           int i_num_pics )
1380 {
1381     int i;
1382     int i_ret = VLC_SUCCESS;
1383     LPDIRECTDRAWSURFACE2 p_surface;
1384
1385     msg_Dbg( p_vout, "NewPictureVec overlay:%s chroma:%.4s",
1386              p_vout->p_sys->b_using_overlay ? "yes" : "no",
1387              (char *)&p_vout->output.i_chroma );
1388
1389     I_OUTPUTPICTURES = 0;
1390
1391     /* First we try to use an YUV overlay surface.
1392      * The overlay surface that we create won't be used to decode directly
1393      * into it because accessing video memory directly is way to slow (remember
1394      * that pictures are decoded macroblock per macroblock). Instead the video
1395      * will be decoded in picture buffers in system memory which will then be
1396      * memcpy() to the overlay surface. */
1397     if( p_vout->p_sys->b_using_overlay )
1398     {
1399         /* Triple buffering rocks! it doesn't have any processing overhead
1400          * (you don't have to wait for the vsync) and provides for a very nice
1401          * video quality (no tearing). */
1402         if( p_vout->p_sys->b_3buf_overlay )
1403             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1404                                           p_vout->output.i_chroma,
1405                                           p_vout->p_sys->b_using_overlay,
1406                                           2 /* number of backbuffers */ );
1407
1408         if( !p_vout->p_sys->b_3buf_overlay || i_ret != VLC_SUCCESS )
1409         {
1410             /* Try to reduce the number of backbuffers */
1411             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1412                                           p_vout->output.i_chroma,
1413                                           p_vout->p_sys->b_using_overlay,
1414                                           0 /* number of backbuffers */ );
1415         }
1416
1417         if( i_ret == VLC_SUCCESS )
1418         {
1419             DDSCAPS dds_caps;
1420             picture_t front_pic;
1421             picture_sys_t front_pic_sys;
1422             front_pic.p_sys = &front_pic_sys;
1423
1424             /* Allocate internal structure */
1425             p_pic[0].p_sys = malloc( sizeof( picture_sys_t ) );
1426             if( p_pic[0].p_sys == NULL )
1427             {
1428                 DirectXCloseSurface( p_vout, p_surface );
1429                 return VLC_ENOMEM;
1430             }
1431
1432             /* set front buffer */
1433             p_pic[0].p_sys->p_front_surface = p_surface;
1434
1435             /* Get the back buffer */
1436             memset( &dds_caps, 0, sizeof( DDSCAPS ) );
1437             dds_caps.dwCaps = DDSCAPS_BACKBUFFER;
1438             if( DD_OK != IDirectDrawSurface2_GetAttachedSurface(
1439                                                 p_surface, &dds_caps,
1440                                                 &p_pic[0].p_sys->p_surface ) )
1441             {
1442                 msg_Warn( p_vout, "NewPictureVec could not get back buffer" );
1443                 /* front buffer is the same as back buffer */
1444                 p_pic[0].p_sys->p_surface = p_surface;
1445             }
1446
1447
1448             p_vout->p_sys->p_current_surface = front_pic.p_sys->p_surface =
1449                 p_pic[0].p_sys->p_front_surface;
1450
1451             /* Reset the front buffer memory */
1452             if( DirectXLockSurface( p_vout, &front_pic ) == VLC_SUCCESS )
1453             {
1454                 int i,j;
1455                 for( i = 0; i < front_pic.i_planes; i++ )
1456                     for( j = 0; j < front_pic.p[i].i_visible_lines; j++)
1457                         memset( front_pic.p[i].p_pixels + j *
1458                                 front_pic.p[i].i_pitch, 127,
1459                                 front_pic.p[i].i_visible_pitch );
1460
1461                 DirectXUnlockSurface( p_vout, &front_pic );
1462             }
1463
1464             DirectDrawUpdateOverlay( p_vout );
1465             I_OUTPUTPICTURES = 1;
1466             msg_Dbg( p_vout, "YUV overlay created successfully" );
1467         }
1468     }
1469
1470     /* As we can't have an overlay, we'll try to create a plain offscreen
1471      * surface. This surface will reside in video memory because there's a
1472      * better chance then that we'll be able to use some kind of hardware
1473      * acceleration like rescaling, blitting or YUV->RGB conversions.
1474      * We then only need to blit this surface onto the main display when we
1475      * want to display it */
1476     if( !p_vout->p_sys->b_using_overlay )
1477     {
1478         if( p_vout->p_sys->b_hw_yuv )
1479         {
1480             DWORD i_codes;
1481             DWORD *pi_codes;
1482             vlc_bool_t b_result = VLC_FALSE;
1483
1484             /* Check if the chroma is supported first. This is required
1485              * because a few buggy drivers don't mind creating the surface
1486              * even if they don't know about the chroma. */
1487             if( IDirectDraw2_GetFourCCCodes( p_vout->p_sys->p_ddobject,
1488                                              &i_codes, NULL ) == DD_OK )
1489             {
1490                 pi_codes = malloc( i_codes * sizeof(DWORD) );
1491                 if( pi_codes && IDirectDraw2_GetFourCCCodes(
1492                     p_vout->p_sys->p_ddobject, &i_codes, pi_codes ) == DD_OK )
1493                 {
1494                     for( i = 0; i < (int)i_codes; i++ )
1495                     {
1496                         if( p_vout->output.i_chroma == pi_codes[i] )
1497                         {
1498                             b_result = VLC_TRUE;
1499                             break;
1500                         }
1501                     }
1502                 }
1503             }
1504
1505             if( b_result )
1506                 i_ret = DirectXCreateSurface( p_vout, &p_surface,
1507                                               p_vout->output.i_chroma,
1508                                               0 /* no overlay */,
1509                                               0 /* no back buffers */ );
1510             else
1511                 p_vout->p_sys->b_hw_yuv = VLC_FALSE;
1512         }
1513
1514         if( i_ret || !p_vout->p_sys->b_hw_yuv )
1515         {
1516             /* Our last choice is to use a plain RGB surface */
1517             DDPIXELFORMAT ddpfPixelFormat;
1518
1519             ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1520             IDirectDrawSurface2_GetPixelFormat( p_vout->p_sys->p_display,
1521                                                 &ddpfPixelFormat );
1522
1523             if( ddpfPixelFormat.dwFlags & DDPF_RGB )
1524             {
1525                 switch( ddpfPixelFormat.dwRGBBitCount )
1526                 {
1527                 case 8:
1528                     p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
1529                     p_vout->output.pf_setpalette = SetPalette;
1530                     break;
1531                 case 15:
1532                     p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5');
1533                     break;
1534                 case 16:
1535                     p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
1536                     break;
1537                 case 24:
1538                     p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
1539                     break;
1540                 case 32:
1541                     p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
1542                     break;
1543                 default:
1544                     msg_Err( p_vout, "unknown screen depth" );
1545                     return VLC_EGENERIC;
1546                 }
1547                 p_vout->output.i_rmask = ddpfPixelFormat.dwRBitMask;
1548                 p_vout->output.i_gmask = ddpfPixelFormat.dwGBitMask;
1549                 p_vout->output.i_bmask = ddpfPixelFormat.dwBBitMask;
1550             }
1551
1552             p_vout->p_sys->b_hw_yuv = 0;
1553
1554             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1555                                           p_vout->output.i_chroma,
1556                                           0 /* no overlay */,
1557                                           0 /* no back buffers */ );
1558
1559             if( i_ret && !p_vout->p_sys->b_use_sysmem )
1560             {
1561                 /* Give it a last try with b_use_sysmem enabled */
1562                 p_vout->p_sys->b_use_sysmem = 1;
1563
1564                 i_ret = DirectXCreateSurface( p_vout, &p_surface,
1565                                               p_vout->output.i_chroma,
1566                                               0 /* no overlay */,
1567                                               0 /* no back buffers */ );
1568             }
1569         }
1570
1571         if( i_ret == VLC_SUCCESS )
1572         {
1573             /* Allocate internal structure */
1574             p_pic[0].p_sys = malloc( sizeof( picture_sys_t ) );
1575             if( p_pic[0].p_sys == NULL )
1576             {
1577                 DirectXCloseSurface( p_vout, p_surface );
1578                 return VLC_ENOMEM;
1579             }
1580
1581             p_pic[0].p_sys->p_surface = p_pic[0].p_sys->p_front_surface
1582                 = p_surface;
1583
1584             I_OUTPUTPICTURES = 1;
1585
1586             msg_Dbg( p_vout, "created plain surface of chroma:%.4s",
1587                      (char *)&p_vout->output.i_chroma );
1588         }
1589     }
1590
1591
1592     /* Now that we've got all our direct-buffers, we can finish filling in the
1593      * picture_t structures */
1594     for( i = 0; i < I_OUTPUTPICTURES; i++ )
1595     {
1596         p_pic[i].i_status = DESTROYED_PICTURE;
1597         p_pic[i].i_type   = DIRECT_PICTURE;
1598         p_pic[i].b_slow   = VLC_TRUE;
1599         p_pic[i].pf_lock  = DirectXLockSurface;
1600         p_pic[i].pf_unlock = DirectXUnlockSurface;
1601         PP_OUTPUTPICTURE[i] = &p_pic[i];
1602
1603         if( DirectXLockSurface( p_vout, &p_pic[i] ) != VLC_SUCCESS )
1604         {
1605             /* AAARRGG */
1606             FreePictureVec( p_vout, p_pic, I_OUTPUTPICTURES );
1607             I_OUTPUTPICTURES = 0;
1608             msg_Err( p_vout, "cannot lock surface" );
1609             return VLC_EGENERIC;
1610         }
1611         DirectXUnlockSurface( p_vout, &p_pic[i] );
1612     }
1613
1614     msg_Dbg( p_vout, "End NewPictureVec (%s)",
1615              I_OUTPUTPICTURES ? "succeeded" : "failed" );
1616
1617     return VLC_SUCCESS;
1618 }
1619
1620 /*****************************************************************************
1621  * FreePicture: destroy a picture vector allocated with NewPictureVec
1622  *****************************************************************************
1623  *
1624  *****************************************************************************/
1625 static void FreePictureVec( vout_thread_t *p_vout, picture_t *p_pic,
1626                             int i_num_pics )
1627 {
1628     int i;
1629
1630     vlc_mutex_lock( &p_vout->p_sys->lock );
1631     p_vout->p_sys->p_current_surface = 0;
1632     vlc_mutex_unlock( &p_vout->p_sys->lock );
1633
1634     for( i = 0; i < i_num_pics; i++ )
1635     {
1636         DirectXCloseSurface( p_vout, p_pic[i].p_sys->p_front_surface );
1637
1638         for( i = 0; i < i_num_pics; i++ )
1639         {
1640             free( p_pic[i].p_sys );
1641         }
1642     }
1643 }
1644
1645 /*****************************************************************************
1646  * UpdatePictureStruct: updates the internal data in the picture_t structure
1647  *****************************************************************************
1648  * This will setup stuff for use by the video_output thread
1649  *****************************************************************************/
1650 static int UpdatePictureStruct( vout_thread_t *p_vout, picture_t *p_pic,
1651                                 int i_chroma )
1652 {
1653     switch( p_vout->output.i_chroma )
1654     {
1655         case VLC_FOURCC('R','G','B','2'):
1656         case VLC_FOURCC('R','V','1','5'):
1657         case VLC_FOURCC('R','V','1','6'):
1658         case VLC_FOURCC('R','V','2','4'):
1659         case VLC_FOURCC('R','V','3','2'):
1660             p_pic->p->p_pixels = p_pic->p_sys->ddsd.lpSurface;
1661             p_pic->p->i_lines = p_vout->output.i_height;
1662             p_pic->p->i_visible_lines = p_vout->output.i_height;
1663             p_pic->p->i_pitch = p_pic->p_sys->ddsd.lPitch;
1664             switch( p_vout->output.i_chroma )
1665             {
1666                 case VLC_FOURCC('R','G','B','2'):
1667                     p_pic->p->i_pixel_pitch = 1;
1668                     break;
1669                 case VLC_FOURCC('R','V','1','5'):
1670                 case VLC_FOURCC('R','V','1','6'):
1671                     p_pic->p->i_pixel_pitch = 2;
1672                     break;
1673                 case VLC_FOURCC('R','V','2','4'):
1674                     p_pic->p->i_pixel_pitch = 3;
1675                     break;
1676                 case VLC_FOURCC('R','V','3','2'):
1677                     p_pic->p->i_pixel_pitch = 4;
1678                     break;
1679                 default:
1680                     return VLC_EGENERIC;
1681             }
1682             p_pic->p->i_visible_pitch = p_vout->output.i_width *
1683               p_pic->p->i_pixel_pitch;
1684             p_pic->i_planes = 1;
1685             break;
1686
1687         case VLC_FOURCC('Y','V','1','2'):
1688         case VLC_FOURCC('I','4','2','0'):
1689
1690             /* U and V inverted compared to I420
1691              * Fixme: this should be handled by the vout core */
1692             p_vout->output.i_chroma = VLC_FOURCC('I','4','2','0');
1693
1694             p_pic->Y_PIXELS = p_pic->p_sys->ddsd.lpSurface;
1695             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1696             p_pic->p[Y_PLANE].i_visible_lines = p_vout->output.i_height;
1697             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->ddsd.lPitch;
1698             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1699             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width *
1700               p_pic->p[Y_PLANE].i_pixel_pitch;
1701
1702             p_pic->V_PIXELS =  p_pic->Y_PIXELS
1703               + p_pic->p[Y_PLANE].i_lines * p_pic->p[Y_PLANE].i_pitch;
1704             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1705             p_pic->p[V_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1706             p_pic->p[V_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1707             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1708             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1709               p_pic->p[V_PLANE].i_pixel_pitch;
1710
1711             p_pic->U_PIXELS = p_pic->V_PIXELS
1712               + p_pic->p[V_PLANE].i_lines * p_pic->p[V_PLANE].i_pitch;
1713             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1714             p_pic->p[U_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1715             p_pic->p[U_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1716             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1717             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1718               p_pic->p[U_PLANE].i_pixel_pitch;
1719
1720             p_pic->i_planes = 3;
1721             break;
1722
1723         case VLC_FOURCC('I','Y','U','V'):
1724
1725             p_pic->Y_PIXELS = p_pic->p_sys->ddsd.lpSurface;
1726             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1727             p_pic->p[Y_PLANE].i_visible_lines = p_vout->output.i_height;
1728             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->ddsd.lPitch;
1729             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1730             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width *
1731               p_pic->p[Y_PLANE].i_pixel_pitch;
1732
1733             p_pic->U_PIXELS = p_pic->Y_PIXELS
1734               + p_pic->p[Y_PLANE].i_lines * p_pic->p[Y_PLANE].i_pitch;
1735             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1736             p_pic->p[U_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1737             p_pic->p[U_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1738             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1739             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1740               p_pic->p[U_PLANE].i_pixel_pitch;
1741
1742             p_pic->V_PIXELS =  p_pic->U_PIXELS
1743               + p_pic->p[U_PLANE].i_lines * p_pic->p[U_PLANE].i_pitch;
1744             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1745             p_pic->p[V_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1746             p_pic->p[V_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1747             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1748             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1749               p_pic->p[V_PLANE].i_pixel_pitch;
1750
1751             p_pic->i_planes = 3;
1752             break;
1753
1754         case VLC_FOURCC('U','Y','V','Y'):
1755         case VLC_FOURCC('Y','U','Y','2'):
1756
1757             p_pic->p->p_pixels = p_pic->p_sys->ddsd.lpSurface;
1758             p_pic->p->i_lines = p_vout->output.i_height;
1759             p_pic->p->i_visible_lines = p_vout->output.i_height;
1760             p_pic->p->i_pitch = p_pic->p_sys->ddsd.lPitch;
1761             p_pic->p->i_pixel_pitch = 2;
1762             p_pic->p->i_visible_pitch = p_vout->output.i_width *
1763               p_pic->p->i_pixel_pitch;
1764
1765             p_pic->i_planes = 1;
1766             break;
1767
1768         default:
1769             /* Unknown chroma, tell the guy to get lost */
1770             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1771                      p_vout->output.i_chroma,
1772                      (char*)&p_vout->output.i_chroma );
1773             return VLC_EGENERIC;
1774     }
1775
1776     return VLC_SUCCESS;
1777 }
1778
1779 /*****************************************************************************
1780  * DirectXGetDDrawCaps: Probe the capabilities of the hardware
1781  *****************************************************************************
1782  * It is nice to know which features are supported by the hardware so we can
1783  * find ways to optimize our rendering.
1784  *****************************************************************************/
1785 static void DirectXGetDDrawCaps( vout_thread_t *p_vout )
1786 {
1787     DDCAPS ddcaps;
1788     HRESULT dxresult;
1789
1790     /* This is just an indication of whether or not we'll support overlay,
1791      * but with this test we don't know if we support YUV overlay */
1792     memset( &ddcaps, 0, sizeof( DDCAPS ));
1793     ddcaps.dwSize = sizeof(DDCAPS);
1794     dxresult = IDirectDraw2_GetCaps( p_vout->p_sys->p_ddobject,
1795                                      &ddcaps, NULL );
1796     if(dxresult != DD_OK )
1797     {
1798         msg_Warn( p_vout, "cannot get caps" );
1799     }
1800     else
1801     {
1802         vlc_bool_t bHasOverlay, bHasOverlayFourCC, bCanDeinterlace,
1803              bHasColorKey, bCanStretch, bCanBltFourcc,
1804              bAlignBoundarySrc, bAlignBoundaryDest,
1805              bAlignSizeSrc, bAlignSizeDest;
1806
1807         /* Determine if the hardware supports overlay surfaces */
1808         bHasOverlay = (ddcaps.dwCaps & DDCAPS_OVERLAY) ? 1 : 0;
1809         /* Determine if the hardware supports overlay surfaces */
1810         bHasOverlayFourCC = (ddcaps.dwCaps & DDCAPS_OVERLAYFOURCC) ? 1 : 0;
1811         /* Determine if the hardware supports overlay deinterlacing */
1812         bCanDeinterlace = (ddcaps.dwCaps & DDCAPS2_CANFLIPODDEVEN) ? 1 : 0;
1813         /* Determine if the hardware supports colorkeying */
1814         bHasColorKey = (ddcaps.dwCaps & DDCAPS_COLORKEY) ? 1 : 0;
1815         /* Determine if the hardware supports scaling of the overlay surface */
1816         bCanStretch = (ddcaps.dwCaps & DDCAPS_OVERLAYSTRETCH) ? 1 : 0;
1817         /* Determine if the hardware supports color conversion during a blit */
1818         bCanBltFourcc = (ddcaps.dwCaps & DDCAPS_BLTFOURCC) ? 1 : 0;
1819         /* Determine overlay source boundary alignment */
1820         bAlignBoundarySrc = (ddcaps.dwCaps & DDCAPS_ALIGNBOUNDARYSRC) ? 1 : 0;
1821         /* Determine overlay destination boundary alignment */
1822         bAlignBoundaryDest = (ddcaps.dwCaps & DDCAPS_ALIGNBOUNDARYDEST) ? 1:0;
1823         /* Determine overlay destination size alignment */
1824         bAlignSizeSrc = (ddcaps.dwCaps & DDCAPS_ALIGNSIZESRC) ? 1 : 0;
1825         /* Determine overlay destination size alignment */
1826         bAlignSizeDest = (ddcaps.dwCaps & DDCAPS_ALIGNSIZEDEST) ? 1 : 0;
1827
1828         msg_Dbg( p_vout, "DirectDraw Capabilities: overlay=%i yuvoverlay=%i "
1829                          "can_deinterlace_overlay=%i colorkey=%i stretch=%i "
1830                          "bltfourcc=%i",
1831                          bHasOverlay, bHasOverlayFourCC, bCanDeinterlace,
1832                          bHasColorKey, bCanStretch, bCanBltFourcc );
1833
1834         if( bAlignBoundarySrc || bAlignBoundaryDest ||
1835             bAlignSizeSrc || bAlignSizeDest )
1836         {
1837             if( bAlignBoundarySrc ) p_vout->p_sys->i_align_src_boundary =
1838                 ddcaps.dwAlignBoundarySrc;
1839             if( bAlignBoundaryDest ) p_vout->p_sys->i_align_dest_boundary =
1840                 ddcaps.dwAlignBoundaryDest;
1841             if( bAlignSizeDest ) p_vout->p_sys->i_align_src_size =
1842                 ddcaps.dwAlignSizeSrc;
1843             if( bAlignSizeDest ) p_vout->p_sys->i_align_dest_size =
1844                 ddcaps.dwAlignSizeDest;
1845
1846             msg_Dbg( p_vout, "align_boundary_src=%i,%i "
1847                      "align_boundary_dest=%i,%i "
1848                      "align_size_src=%i,%i align_size_dest=%i,%i",
1849                      bAlignBoundarySrc, p_vout->p_sys->i_align_src_boundary,
1850                      bAlignBoundaryDest, p_vout->p_sys->i_align_dest_boundary,
1851                      bAlignSizeSrc, p_vout->p_sys->i_align_src_size,
1852                      bAlignSizeDest, p_vout->p_sys->i_align_dest_size );
1853         }
1854
1855         /* Don't ask for troubles */
1856         if( !bCanBltFourcc ) p_vout->p_sys->b_hw_yuv = FALSE;
1857     }
1858 }
1859
1860 /*****************************************************************************
1861  * DirectXLockSurface: Lock surface and get picture data pointer
1862  *****************************************************************************
1863  * This function locks a surface and get the surface descriptor which amongst
1864  * other things has the pointer to the picture data.
1865  *****************************************************************************/
1866 static int DirectXLockSurface( vout_thread_t *p_vout, picture_t *p_pic )
1867 {
1868     HRESULT dxresult;
1869
1870     /* Lock the surface to get a valid pointer to the picture buffer */
1871     memset( &p_pic->p_sys->ddsd, 0, sizeof( DDSURFACEDESC ));
1872     p_pic->p_sys->ddsd.dwSize = sizeof(DDSURFACEDESC);
1873     dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface,
1874                                          NULL, &p_pic->p_sys->ddsd,
1875                                          DDLOCK_NOSYSLOCK | DDLOCK_WAIT,
1876                                          NULL );
1877     if( dxresult != DD_OK )
1878     {
1879         if( dxresult == DDERR_INVALIDPARAMS )
1880         {
1881             /* DirectX 3 doesn't support the DDLOCK_NOSYSLOCK flag, resulting
1882              * in an invalid params error */
1883             dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface, NULL,
1884                                              &p_pic->p_sys->ddsd,
1885                                              DDLOCK_WAIT, NULL);
1886         }
1887         if( dxresult == DDERR_SURFACELOST )
1888         {
1889             /* Your surface can be lost so be sure
1890              * to check this and restore it if needed */
1891
1892             /* When using overlays with back-buffers, we need to restore
1893              * the front buffer so the back-buffers get restored as well. */
1894             if( p_vout->p_sys->b_using_overlay  )
1895                 IDirectDrawSurface2_Restore( p_pic->p_sys->p_front_surface );
1896             else
1897                 IDirectDrawSurface2_Restore( p_pic->p_sys->p_surface );
1898
1899             dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface, NULL,
1900                                                  &p_pic->p_sys->ddsd,
1901                                                  DDLOCK_WAIT, NULL);
1902 #if 0
1903             if( dxresult == DDERR_SURFACELOST )
1904                 msg_Dbg( p_vout, "DirectXLockSurface: DDERR_SURFACELOST" );
1905 #endif
1906         }
1907         if( dxresult != DD_OK )
1908         {
1909             return VLC_EGENERIC;
1910         }
1911     }
1912
1913     /* Now we have a pointer to the surface memory, we can update our picture
1914      * structure. */
1915     if( UpdatePictureStruct( p_vout, p_pic, p_vout->output.i_chroma )
1916         != VLC_SUCCESS )
1917     {
1918         DirectXUnlockSurface( p_vout, p_pic );
1919         return VLC_EGENERIC;
1920     }
1921     else
1922         return VLC_SUCCESS;
1923 }
1924
1925 /*****************************************************************************
1926  * DirectXUnlockSurface: Unlock a surface locked by DirectXLockSurface().
1927  *****************************************************************************/
1928 static int DirectXUnlockSurface( vout_thread_t *p_vout, picture_t *p_pic )
1929 {
1930     /* Unlock the Surface */
1931     if( IDirectDrawSurface2_Unlock( p_pic->p_sys->p_surface, NULL ) == DD_OK )
1932         return VLC_SUCCESS;
1933     else
1934         return VLC_EGENERIC;
1935 }
1936
1937 /*****************************************************************************
1938  * DirectXFindColorkey: Finds out the 32bits RGB pixel value of the colorkey
1939  *****************************************************************************/
1940 static DWORD DirectXFindColorkey( vout_thread_t *p_vout, uint32_t *pi_color )
1941 {
1942     DDSURFACEDESC ddsd;
1943     HRESULT dxresult;
1944     COLORREF i_rgb = 0;
1945     uint32_t i_pixel_backup;
1946     HDC hdc;
1947
1948     ddsd.dwSize = sizeof(ddsd);
1949     dxresult = IDirectDrawSurface2_Lock( p_vout->p_sys->p_display, NULL,
1950                                          &ddsd, DDLOCK_WAIT, NULL );
1951     if( dxresult != DD_OK ) return 0;
1952
1953     i_pixel_backup = *(uint32_t *)ddsd.lpSurface;
1954
1955     switch( ddsd.ddpfPixelFormat.dwRGBBitCount )
1956     {
1957     case 4:
1958         *(uint8_t *)ddsd.lpSurface = *pi_color | (*pi_color << 4);
1959         break;
1960     case 8:
1961         *(uint8_t *)ddsd.lpSurface = *pi_color;
1962         break;
1963     case 15:
1964     case 16:
1965         *(uint16_t *)ddsd.lpSurface = *pi_color;
1966         break;
1967     case 24:
1968         /* Seems to be problematic so we'll just put black as the colorkey */
1969         *pi_color = 0;
1970     default:
1971         *(uint32_t *)ddsd.lpSurface = *pi_color;
1972         break;
1973     }
1974
1975     IDirectDrawSurface2_Unlock( p_vout->p_sys->p_display, NULL );
1976
1977     if( IDirectDrawSurface2_GetDC( p_vout->p_sys->p_display, &hdc ) == DD_OK )
1978     {
1979         i_rgb = GetPixel( hdc, 0, 0 );
1980         IDirectDrawSurface2_ReleaseDC( p_vout->p_sys->p_display, hdc );
1981     }
1982
1983     ddsd.dwSize = sizeof(ddsd);
1984     dxresult = IDirectDrawSurface2_Lock( p_vout->p_sys->p_display, NULL,
1985                                          &ddsd, DDLOCK_WAIT, NULL );
1986     if( dxresult != DD_OK ) return i_rgb;
1987
1988     *(uint32_t *)ddsd.lpSurface = i_pixel_backup;
1989
1990     IDirectDrawSurface2_Unlock( p_vout->p_sys->p_display, NULL );
1991
1992     return i_rgb;
1993 }
1994
1995 /*****************************************************************************
1996  * A few toolbox functions
1997  *****************************************************************************/
1998 void SwitchWallpaperMode( vout_thread_t *p_vout, vlc_bool_t b_on )
1999 {
2000     HWND hwnd;
2001
2002     if( p_vout->p_sys->b_wallpaper == b_on ) return; /* Nothing to do */
2003
2004     hwnd = FindWindow( _T("Progman"), NULL );
2005     if( hwnd ) hwnd = FindWindowEx( hwnd, NULL, _T("SHELLDLL_DefView"), NULL );
2006     if( hwnd ) hwnd = FindWindowEx( hwnd, NULL, _T("SysListView32"), NULL );
2007     if( !hwnd )
2008     {
2009         msg_Warn( p_vout, "couldn't find \"SysListView32\" window, "
2010                   "wallpaper mode not supported" );
2011         return;
2012     }
2013
2014     p_vout->p_sys->b_wallpaper = b_on;
2015
2016     msg_Dbg( p_vout, "wallpaper mode %s", b_on ? "enabled" : "disabled" );
2017
2018     if( p_vout->p_sys->b_wallpaper )
2019     {
2020         p_vout->p_sys->color_bkg = ListView_GetBkColor( hwnd );
2021         p_vout->p_sys->color_bkgtxt = ListView_GetTextBkColor( hwnd );
2022
2023         ListView_SetBkColor( hwnd, p_vout->p_sys->i_rgb_colorkey );
2024         ListView_SetTextBkColor( hwnd, p_vout->p_sys->i_rgb_colorkey );
2025     }
2026     else if( hwnd )
2027     {
2028         ListView_SetBkColor( hwnd, p_vout->p_sys->color_bkg );
2029         ListView_SetTextBkColor( hwnd, p_vout->p_sys->color_bkgtxt );
2030     }
2031
2032     /* Update desktop */
2033     InvalidateRect( hwnd, NULL, TRUE );
2034     UpdateWindow( hwnd );
2035 }
2036
2037 /*****************************************************************************
2038  * config variable callback
2039  *****************************************************************************/
2040 BOOL WINAPI DirectXEnumCallback2( GUID* p_guid, LPTSTR psz_desc,
2041                                   LPTSTR psz_drivername, VOID* p_context,
2042                                   HMONITOR hmon )
2043 {
2044     module_config_t *p_item = (module_config_t *)p_context;
2045
2046     p_item->ppsz_list =
2047         (char **)realloc( p_item->ppsz_list,
2048                           (p_item->i_list+2) * sizeof(char *) );
2049     p_item->ppsz_list_text =
2050         (char **)realloc( p_item->ppsz_list_text,
2051                           (p_item->i_list+2) * sizeof(char *) );
2052
2053     p_item->ppsz_list[p_item->i_list] = strdup( psz_drivername );
2054     p_item->ppsz_list_text[p_item->i_list] = NULL;
2055     p_item->i_list++;
2056     p_item->ppsz_list[p_item->i_list] = NULL;
2057     p_item->ppsz_list_text[p_item->i_list] = NULL;
2058
2059     return TRUE; /* Keep enumerating */
2060 }
2061
2062 static int FindDevicesCallback( vlc_object_t *p_this, char const *psz_name,
2063                                vlc_value_t newval, vlc_value_t oldval, void *d)
2064 {
2065     HRESULT (WINAPI *OurDirectDrawEnumerateEx)( LPDDENUMCALLBACKEXA, LPVOID,
2066                                                 DWORD );
2067     HINSTANCE hddraw_dll;
2068
2069     module_config_t *p_item;
2070     int i;
2071
2072     p_item = config_FindConfig( p_this, psz_name );
2073     if( !p_item ) return VLC_SUCCESS;
2074
2075     /* Clear-up the current list */
2076     if( p_item->i_list )
2077     {
2078         /* Keep the first entry */
2079         for( i = 1; i < p_item->i_list; i++ )
2080         {
2081             free( p_item->ppsz_list[i] );
2082             free( p_item->ppsz_list_text[i] );
2083         }
2084         /* TODO: Remove when no more needed */
2085         p_item->ppsz_list[i] = NULL;
2086         p_item->ppsz_list_text[i] = NULL;
2087     }
2088     p_item->i_list = 1;
2089
2090     /* Load direct draw DLL */
2091     hddraw_dll = LoadLibrary(_T("DDRAW.DLL"));
2092     if( hddraw_dll == NULL ) return VLC_SUCCESS;
2093
2094     OurDirectDrawEnumerateEx =
2095 #ifndef UNICODE
2096       (void *)GetProcAddress( hddraw_dll, "DirectDrawEnumerateExA" );
2097 #else
2098       (void *)GetProcAddress( hddraw_dll, _T("DirectDrawEnumerateExW") );
2099 #endif
2100
2101     if( OurDirectDrawEnumerateEx )
2102     {
2103         /* Enumerate displays */
2104         OurDirectDrawEnumerateEx( DirectXEnumCallback2, p_item,
2105                                   DDENUM_ATTACHEDSECONDARYDEVICES );
2106     }
2107
2108     FreeLibrary( hddraw_dll );
2109
2110     /* Signal change to the interface */
2111     p_item->b_dirty = VLC_TRUE;
2112
2113     return VLC_SUCCESS;
2114 }
2115
2116 static int WallpaperCallback( vlc_object_t *p_this, char const *psz_cmd,
2117                               vlc_value_t oldval, vlc_value_t newval,
2118                               void *p_data )
2119 {
2120     vout_thread_t *p_vout = (vout_thread_t *)p_this;
2121
2122     if( (newval.b_bool && !p_vout->p_sys->b_wallpaper) ||
2123         (!newval.b_bool && p_vout->p_sys->b_wallpaper) )
2124     {
2125         playlist_t *p_playlist;
2126
2127         p_playlist =
2128             (playlist_t *)vlc_object_find( p_this, VLC_OBJECT_PLAYLIST,
2129                                            FIND_PARENT );
2130         if( p_playlist )
2131         {
2132             /* Modify playlist as well because the vout might have to be
2133              * restarted */
2134             var_Create( p_playlist, "directx-wallpaper", VLC_VAR_BOOL );
2135             var_Set( p_playlist, "directx-wallpaper", newval );
2136
2137             vlc_object_release( p_playlist );
2138         }
2139
2140         p_vout->p_sys->i_changes |= DX_WALLPAPER_CHANGE;
2141     }
2142
2143     return VLC_SUCCESS;
2144 }
2145
2146 /*****************************************************************************
2147  * SetPalette: sets an 8 bpp palette
2148  *****************************************************************************/
2149 static void SetPalette( vout_thread_t *p_vout,
2150                         uint16_t *red, uint16_t *green, uint16_t *blue )
2151 {
2152     msg_Err( p_vout, "FIXME: SetPalette unimplemented" );
2153 }