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 #include <vlc/vlc.h>
  40 #include <vlc_interface.h>
  41 #include <vlc_playlist.h>
  42 #include <vlc_vout.h>
  43
  44 #include <windows.h>
  45 #include <ddraw.h>
  46 #include <commctrl.h>
  47
  48 #ifndef UNDER_CE
  49 #   include <multimon.h>
  50 #endif
  51 #undef GetSystemMetrics
  52
  53 #ifndef MONITOR_DEFAULTTONEAREST
  54 #   define MONITOR_DEFAULTTONEAREST 2
  55 #endif
  56
  57 #include "vout.h"
  58
  59 /*****************************************************************************
  60  * picture_sys_t: direct buffer method descriptor
  61  *****************************************************************************
  62  * This structure is part of the picture descriptor, it describes the
  63  * DirectX specific properties of a direct buffer.
  64  *****************************************************************************/
  65 struct picture_sys_t
  66 {
  67     LPDIRECTDRAWSURFACE2 p_surface;
  68     LPDIRECTDRAWSURFACE2 p_front_surface;
  69     DDSURFACEDESC        ddsd;
  70 };
  71
  72 /*****************************************************************************
  73  * DirectDraw GUIDs.
  74  * Defining them here allows us to get rid of the dxguid library during
  75  * the linking stage.
  76  *****************************************************************************/
  77 #include <initguid.h>
  78 #undef GUID_EXT
  79 #define GUID_EXT
  80 DEFINE_GUID( IID_IDirectDraw2, 0xB3A6F3E0,0x2B43,0x11CF,0xA2,0xDE,0x00,0xAA,0x00,0xB9,0x33,0x56 );
  81 DEFINE_GUID( IID_IDirectDrawSurface2, 0x57805885,0x6eec,0x11cf,0x94,0x41,0xa8,0x23,0x03,0xc1,0x0e,0x27 );
  82
  83 /*****************************************************************************
  84  * Local prototypes.
  85  *****************************************************************************/
  86 static int  OpenVideo  ( vlc_object_t * );
  87 static void CloseVideo ( vlc_object_t * );
  88
  89 static int  Init      ( vout_thread_t * );
  90 static void End       ( vout_thread_t * );
  91 static int  Manage    ( vout_thread_t * );
  92 static void Display   ( vout_thread_t *, picture_t * );
  93 static void FirstDisplay( vout_thread_t *, picture_t * );
  94 static void SetPalette( vout_thread_t *, uint16_t *, uint16_t *, uint16_t * );
  95
  96 static int  NewPictureVec  ( vout_thread_t *, picture_t *, int );
  97 static void FreePictureVec ( vout_thread_t *, picture_t *, int );
  98 static int  UpdatePictureStruct( vout_thread_t *, picture_t *, int );
  99
 100 static int  DirectXInitDDraw      ( vout_thread_t *p_vout );
 101 static void DirectXCloseDDraw     ( vout_thread_t *p_vout );
 102 static int  DirectXCreateDisplay  ( vout_thread_t *p_vout );
 103 static void DirectXCloseDisplay   ( vout_thread_t *p_vout );
 104 static int  DirectXCreateSurface  ( vout_thread_t *p_vout,
 105                                     LPDIRECTDRAWSURFACE2 *, int, int, int );
 106 static void DirectXCloseSurface   ( vout_thread_t *p_vout,
 107                                     LPDIRECTDRAWSURFACE2 );
 108 static int  DirectXCreateClipper  ( vout_thread_t *p_vout );
 109 static void DirectXGetDDrawCaps   ( vout_thread_t *p_vout );
 110 static int  DirectXLockSurface    ( vout_thread_t *p_vout, picture_t *p_pic );
 111 static int  DirectXUnlockSurface  ( vout_thread_t *p_vout, picture_t *p_pic );
 112
 113 static DWORD DirectXFindColorkey( vout_thread_t *p_vout, uint32_t *i_color );
 114
 115 void SwitchWallpaperMode( vout_thread_t *, vlc_bool_t );
 116
 117 /* Object variables callbacks */
 118 static int FindDevicesCallback( vlc_object_t *, char const *,
 119                                 vlc_value_t, vlc_value_t, void * );
 120 static int WallpaperCallback( vlc_object_t *, char const *,
 121                               vlc_value_t, vlc_value_t, void * );
 122
 123 /*****************************************************************************
 124  * Module descriptor
 125  *****************************************************************************/
 126 #define HW_YUV_TEXT N_("Use hardware YUV->RGB conversions")
 127 #define HW_YUV_LONGTEXT N_( \
 128     "Try to use hardware acceleration for YUV->RGB conversions. " \
 129     "This option doesn't have any effect when using overlays." )
 130
 131 #define SYSMEM_TEXT N_("Use video buffers in system memory")
 132 #define SYSMEM_LONGTEXT N_( \
 133     "Create video buffers in system memory instead of video memory. This " \
 134     "isn't recommended as usually using video memory allows to benefit from " \
 135     "more hardware acceleration (like rescaling or YUV->RGB conversions). " \
 136     "This option doesn't have any effect when using overlays." )
 137
 138 #define TRIPLEBUF_TEXT N_("Use triple buffering for overlays")
 139 #define TRIPLEBUF_LONGTEXT N_( \
 140     "Try to use triple buffering when using YUV overlays. That results in " \
 141     "much better video quality (no flickering)." )
 142
 143 #define DEVICE_TEXT N_("Name of desired display device")
 144 #define DEVICE_LONGTEXT N_("In a multiple monitor configuration, you can " \
 145     "specify the Windows device name of the display that you want the video " \
 146     "window to open on. For example, \"\\\\.\\DISPLAY1\" or " \
 147     "\"\\\\.\\DISPLAY2\"." )
 148
 149 #define WALLPAPER_TEXT N_("Enable wallpaper mode ")
 150 #define WALLPAPER_LONGTEXT N_( \
 151     "The wallpaper mode allows you to display the video as the desktop " \
 152     "background. Note that this feature only works in overlay mode and " \
 153     "the desktop must not already have a wallpaper." )
 154
 155 static char *ppsz_dev[] = { "" };
 156 static char *ppsz_dev_text[] = { N_("Default") };
 157
 158 vlc_module_begin();
 159     set_shortname( "DirectX" );
 160     set_category( CAT_VIDEO );
 161     set_subcategory( SUBCAT_VIDEO_VOUT );
 162     add_bool( "directx-hw-yuv", 1, NULL, HW_YUV_TEXT, HW_YUV_LONGTEXT,
 163               VLC_TRUE );
 164     add_bool( "directx-use-sysmem", 0, NULL, SYSMEM_TEXT, SYSMEM_LONGTEXT,
 165               VLC_TRUE );
 166     add_bool( "directx-3buffering", 1, NULL, TRIPLEBUF_TEXT,
 167               TRIPLEBUF_LONGTEXT, VLC_TRUE );
 168
 169     add_string( "directx-device", "", NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
 170                 VLC_TRUE );
 171         change_string_list( ppsz_dev, ppsz_dev_text, FindDevicesCallback );
 172         change_action_add( FindDevicesCallback, N_("Refresh list") );
 173
 174     add_bool( "directx-wallpaper", 0, NULL, WALLPAPER_TEXT, WALLPAPER_LONGTEXT,
 175               VLC_TRUE );
 176
 177     set_description( _("DirectX video output") );
 178     set_capability( "video output", 100 );
 179     add_shortcut( "directx" );
 180     set_callbacks( OpenVideo, CloseVideo );
 181
 182     /* FIXME: Hack to avoid unregistering our window class */
 183     linked_with_a_crap_library_which_uses_atexit( );
 184 vlc_module_end();
 185
 186 #if 0 /* FIXME */
 187     /* check if we registered a window class because we need to
 188      * unregister it */
 189     WNDCLASS wndclass;
 190     if( GetClassInfo( GetModuleHandle(NULL), "VLC DirectX", &wndclass ) )
 191         UnregisterClass( "VLC DirectX", GetModuleHandle(NULL) );
 192 #endif
 193
 194 /*****************************************************************************
 195  * OpenVideo: allocate DirectX video thread output method
 196  *****************************************************************************
 197  * This function allocates and initialize the DirectX vout method.
 198  *****************************************************************************/
 199 static int OpenVideo( vlc_object_t *p_this )
 200 {
 201     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 202     vlc_value_t val;
 203     HMODULE huser32;
 204
 205     /* Allocate structure */
 206     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 207     if( p_vout->p_sys == NULL )
 208     {
 209         msg_Err( p_vout, "out of memory" );
 210         return VLC_ENOMEM;
 211     }
 212     memset( p_vout->p_sys, 0, sizeof( vout_sys_t ) );
 213
 214     /* Initialisations */
 215     p_vout->pf_init = Init;
 216     p_vout->pf_end = End;
 217     p_vout->pf_manage = Manage;
 218     p_vout->pf_render = NULL;
 219     p_vout->pf_display = FirstDisplay;
 220
 221     p_vout->p_sys->p_ddobject = NULL;
 222     p_vout->p_sys->p_display = NULL;
 223     p_vout->p_sys->p_current_surface = NULL;
 224     p_vout->p_sys->p_clipper = NULL;
 225     p_vout->p_sys->hwnd = p_vout->p_sys->hvideownd = NULL;
 226     p_vout->p_sys->hparent = p_vout->p_sys->hfswnd = NULL;
 227     p_vout->p_sys->i_changes = 0;
 228     p_vout->p_sys->b_wallpaper = 0;
 229     vlc_mutex_init( p_vout, &p_vout->p_sys->lock );
 230     SetRectEmpty( &p_vout->p_sys->rect_display );
 231     SetRectEmpty( &p_vout->p_sys->rect_parent );
 232
 233     /* Multimonitor stuff */
 234     p_vout->p_sys->hmonitor = NULL;
 235     p_vout->p_sys->p_display_driver = NULL;
 236     p_vout->p_sys->MonitorFromWindow = NULL;
 237     p_vout->p_sys->GetMonitorInfo = NULL;
 238     if( (huser32 = GetModuleHandle( _T("USER32") ) ) )
 239     {
 240         p_vout->p_sys->MonitorFromWindow = (HMONITOR (WINAPI *)( HWND, DWORD ))
 241             GetProcAddress( huser32, _T("MonitorFromWindow") );
 242         p_vout->p_sys->GetMonitorInfo =
 243 #ifndef UNICODE
 244             GetProcAddress( huser32, "GetMonitorInfoA" );
 245 #else
 246             GetProcAddress( huser32, _T("GetMonitorInfoW") );
 247 #endif
 248     }
 249
 250     var_Create( p_vout, "overlay", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 251     var_Create( p_vout, "directx-use-sysmem", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 252     var_Create( p_vout, "directx-hw-yuv", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 253     var_Create( p_vout, "directx-3buffering", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 254     var_Create( p_vout, "directx-device", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 255     var_Create( p_vout, "video-title", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 256     var_Create( p_vout, "disable-screensaver", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 257
 258     p_vout->p_sys->b_cursor_hidden = 0;
 259     p_vout->p_sys->i_lastmoved = mdate();
 260
 261     /* Set main window's size */
 262     p_vout->p_sys->i_window_width = p_vout->i_window_width;
 263     p_vout->p_sys->i_window_height = p_vout->i_window_height;
 264
 265     /* Create the Vout EventThread, this thread is created by us to isolate
 266      * the Win32 PeekMessage function calls. We want to do this because
 267      * Windows can stay blocked inside this call for a long time, and when
 268      * this happens it thus blocks vlc's video_output thread.
 269      * DirectXEventThread will take care of the creation of the video
 270      * window (because PeekMessage has to be called from the same thread which
 271      * created the window). */
 272     msg_Dbg( p_vout, "creating DirectXEventThread" );
 273     p_vout->p_sys->p_event =
 274         vlc_object_create( p_vout, sizeof(event_thread_t) );
 275     p_vout->p_sys->p_event->p_vout = p_vout;
 276     if( vlc_thread_create( p_vout->p_sys->p_event, "Vout Events Thread",
 277                            E_(EventThread), 0, 1 ) )
 278     {
 279         msg_Err( p_vout, "cannot create Vout EventThread" );
 280         vlc_object_destroy( p_vout->p_sys->p_event );
 281         p_vout->p_sys->p_event = NULL;
 282         goto error;
 283     }
 284
 285     if( p_vout->p_sys->p_event->b_error )
 286     {
 287         msg_Err( p_vout, "Vout EventThread failed" );
 288         goto error;
 289     }
 290
 291     vlc_object_attach( p_vout->p_sys->p_event, p_vout );
 292
 293     msg_Dbg( p_vout, "Vout EventThread running" );
 294
 295     /* Initialise DirectDraw */
 296     if( DirectXInitDDraw( p_vout ) )
 297     {
 298         msg_Err( p_vout, "cannot initialize DirectX DirectDraw" );
 299         goto error;
 300     }
 301
 302     /* Create the directx display */
 303     if( DirectXCreateDisplay( p_vout ) )
 304     {
 305         msg_Err( p_vout, "cannot initialize DirectX DirectDraw" );
 306         goto error;
 307     }
 308
 309     /* Variable to indicate if the window should be on top of others */
 310     /* Trigger a callback right now */
 311     var_Get( p_vout, "video-on-top", &val );
 312     var_Set( p_vout, "video-on-top", val );
 313
 314     /* Variable to indicate if the window should be on top of others */
 315     /* Trigger a callback right now */
 316     var_Create( p_vout, "directx-wallpaper", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 317     val.psz_string = _("Wallpaper");
 318     var_Change( p_vout, "directx-wallpaper", VLC_VAR_SETTEXT, &val, NULL );
 319     var_AddCallback( p_vout, "directx-wallpaper", WallpaperCallback, NULL );
 320     var_Get( p_vout, "directx-wallpaper", &val );
 321     var_Set( p_vout, "directx-wallpaper", val );
 322
 323     /* disable screensaver by temporarily changing system settings */
 324     p_vout->p_sys->i_spi_lowpowertimeout = 0;
 325     p_vout->p_sys->i_spi_powerofftimeout = 0;
 326     p_vout->p_sys->i_spi_screensavetimeout = 0;
 327     var_Get( p_vout, "disable-screensaver", &val);
 328     if( val.b_bool ) {
 329         msg_Dbg(p_vout, "disabling screen saver");
 330         SystemParametersInfo(SPI_GETLOWPOWERTIMEOUT,
 331             0, &(p_vout->p_sys->i_spi_lowpowertimeout), 0);
 332         if( 0 != p_vout->p_sys->i_spi_lowpowertimeout ) {
 333             SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT, 0, NULL, 0);
 334         }
 335         SystemParametersInfo(SPI_GETPOWEROFFTIMEOUT, 0,
 336             &(p_vout->p_sys->i_spi_powerofftimeout), 0);
 337         if( 0 != p_vout->p_sys->i_spi_powerofftimeout ) {
 338             SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT, 0, NULL, 0);
 339         }
 340         SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0,
 341             &(p_vout->p_sys->i_spi_screensavetimeout), 0);
 342         if( 0 != p_vout->p_sys->i_spi_screensavetimeout ) {
 343             SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, 0, NULL, 0);
 344         }
 345     }
 346
 347     return VLC_SUCCESS;
 348
 349  error:
 350     CloseVideo( VLC_OBJECT(p_vout) );
 351     return VLC_EGENERIC;
 352 }
 353
 354 /*****************************************************************************
 355  * Init: initialize DirectX video thread output method
 356  *****************************************************************************
 357  * This function create the directx surfaces needed by the output thread.
 358  * It is called at the beginning of the thread.
 359  *****************************************************************************/
 360 static int Init( vout_thread_t *p_vout )
 361 {
 362     int i_chroma_backup;
 363     vlc_value_t val;
 364
 365     /* Get a few default parameters */
 366     var_Get( p_vout, "overlay", &val );
 367     p_vout->p_sys->b_using_overlay = val.b_bool;
 368     var_Get( p_vout, "directx-use-sysmem", &val );
 369     p_vout->p_sys->b_use_sysmem = val.b_bool;
 370     var_Get( p_vout, "directx-hw-yuv", &val );
 371     p_vout->p_sys->b_hw_yuv = val.b_bool;
 372     var_Get( p_vout, "directx-3buffering", &val );
 373     p_vout->p_sys->b_3buf_overlay = val.b_bool;
 374
 375     /* Initialise DirectDraw if not already done.
 376      * We do this here because on multi-monitor systems we may have to
 377      * re-create the directdraw surfaces. */
 378     if( !p_vout->p_sys->p_ddobject &&
 379         DirectXInitDDraw( p_vout ) != VLC_SUCCESS )
 380     {
 381         msg_Err( p_vout, "cannot initialize DirectDraw" );
 382         return VLC_EGENERIC;
 383     }
 384
 385     /* Create the directx display */
 386     if( !p_vout->p_sys->p_display &&
 387         DirectXCreateDisplay( p_vout ) != VLC_SUCCESS )
 388     {
 389         msg_Err( p_vout, "cannot initialize DirectDraw" );
 390         return VLC_EGENERIC;
 391     }
 392
 393     /* Initialize the output structure.
 394      * Since DirectDraw can do rescaling for us, stick to the default
 395      * coordinates and aspect. */
 396     p_vout->output.i_width  = p_vout->render.i_width;
 397     p_vout->output.i_height = p_vout->render.i_height;
 398     p_vout->output.i_aspect = p_vout->render.i_aspect;
 399     p_vout->fmt_out = p_vout->fmt_in;
 400     E_(UpdateRects)( p_vout, VLC_TRUE );
 401
 402 #define MAX_DIRECTBUFFERS 1
 403     /* Right now we use only 1 directbuffer because we don't want the
 404      * video decoder to decode directly into direct buffers as they are
 405      * created into video memory and video memory is _really_ slow */
 406
 407     /* Choose the chroma we will try first. */
 408     switch( p_vout->render.i_chroma )
 409     {
 410         case VLC_FOURCC('Y','U','Y','2'):
 411         case VLC_FOURCC('Y','U','N','V'):
 412             p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
 413             break;
 414         case VLC_FOURCC('U','Y','V','Y'):
 415         case VLC_FOURCC('U','Y','N','V'):
 416         case VLC_FOURCC('Y','4','2','2'):
 417             p_vout->output.i_chroma = VLC_FOURCC('U','Y','V','Y');
 418             break;
 419         case VLC_FOURCC('Y','V','Y','U'):
 420             p_vout->output.i_chroma = VLC_FOURCC('Y','V','Y','U');
 421             break;
 422         default:
 423             p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
 424             break;
 425     }
 426
 427     NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
 428
 429     i_chroma_backup = p_vout->output.i_chroma;
 430
 431     if( !I_OUTPUTPICTURES )
 432     {
 433         /* hmmm, it didn't work! Let's try commonly supported chromas */
 434         if( p_vout->output.i_chroma != VLC_FOURCC('I','4','2','0') )
 435         {
 436             p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
 437             NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
 438         }
 439         if( !I_OUTPUTPICTURES )
 440         {
 441             /* hmmm, it still didn't work! Let's try another one */
 442             p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
 443             NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
 444         }
 445     }
 446
 447     if( !I_OUTPUTPICTURES )
 448     {
 449         /* If it still didn't work then don't try to use an overlay */
 450         p_vout->output.i_chroma = i_chroma_backup;
 451         p_vout->p_sys->b_using_overlay = 0;
 452         NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
 453     }
 454
 455     /* Change the window title bar text */
 456     PostMessage( p_vout->p_sys->hwnd, WM_VLC_CHANGE_TEXT, 0, 0 );
 457
 458     p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
 459     return VLC_SUCCESS;
 460 }
 461
 462 /*****************************************************************************
 463  * End: terminate Sys video thread output method
 464  *****************************************************************************
 465  * Terminate an output method created by Create.
 466  * It is called at the end of the thread.
 467  *****************************************************************************/
 468 static void End( vout_thread_t *p_vout )
 469 {
 470     FreePictureVec( p_vout, p_vout->p_picture, I_OUTPUTPICTURES );
 471
 472     DirectXCloseDisplay( p_vout );
 473     DirectXCloseDDraw( p_vout );
 474
 475     return;
 476 }
 477
 478 /*****************************************************************************
 479  * CloseVideo: destroy Sys video thread output method
 480  *****************************************************************************
 481  * Terminate an output method created by Create
 482  *****************************************************************************/
 483 static void CloseVideo( vlc_object_t *p_this )
 484 {
 485     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 486
 487     msg_Dbg( p_vout, "CloseVideo" );
 488
 489     if( p_vout->p_sys->p_event )
 490     {
 491         vlc_object_detach( p_vout->p_sys->p_event );
 492
 493         /* Kill Vout EventThread */
 494         vlc_object_kill( p_vout->p_sys->p_event );
 495
 496         /* we need to be sure Vout EventThread won't stay stuck in
 497          * GetMessage, so we send a fake message */
 498         if( p_vout->p_sys->hwnd )
 499         {
 500             PostMessage( p_vout->p_sys->hwnd, WM_NULL, 0, 0);
 501         }
 502
 503         vlc_thread_join( p_vout->p_sys->p_event );
 504         vlc_object_destroy( p_vout->p_sys->p_event );
 505     }
 506
 507     vlc_mutex_destroy( &p_vout->p_sys->lock );
 508
 509     /* Make sure the wallpaper is restored */
 510     SwitchWallpaperMode( p_vout, VLC_FALSE );
 511
 512     /* restore screensaver system settings */
 513     if( 0 != p_vout->p_sys->i_spi_lowpowertimeout ) {
 514         SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT,
 515             p_vout->p_sys->i_spi_lowpowertimeout, NULL, 0);
 516     }
 517     if( 0 != p_vout->p_sys->i_spi_powerofftimeout ) {
 518         SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT,
 519             p_vout->p_sys->i_spi_powerofftimeout, NULL, 0);
 520     }
 521     if( 0 != p_vout->p_sys->i_spi_screensavetimeout ) {
 522         SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT,
 523             p_vout->p_sys->i_spi_screensavetimeout, NULL, 0);
 524     }
 525
 526     if( p_vout->p_sys )
 527     {
 528         free( p_vout->p_sys );
 529         p_vout->p_sys = NULL;
 530     }
 531 }
 532
 533 /*****************************************************************************
 534  * Manage: handle Sys events
 535  *****************************************************************************
 536  * This function should be called regularly by the video output thread.
 537  * It returns a non null value if an error occurred.
 538  *****************************************************************************/
 539 static int Manage( vout_thread_t *p_vout )
 540 {
 541     /* If we do not control our window, we check for geometry changes
 542      * ourselves because the parent might not send us its events. */
 543     vlc_mutex_lock( &p_vout->p_sys->lock );
 544     if( p_vout->p_sys->hparent && !p_vout->b_fullscreen )
 545     {
 546         RECT rect_parent;
 547         POINT point;
 548
 549         vlc_mutex_unlock( &p_vout->p_sys->lock );
 550
 551         GetClientRect( p_vout->p_sys->hparent, &rect_parent );
 552         point.x = point.y = 0;
 553         ClientToScreen( p_vout->p_sys->hparent, &point );
 554         OffsetRect( &rect_parent, point.x, point.y );
 555
 556         if( !EqualRect( &rect_parent, &p_vout->p_sys->rect_parent ) )
 557         {
 558             p_vout->p_sys->rect_parent = rect_parent;
 559
 560             /* This one is to force the update even if only
 561              * the position has changed */
 562             SetWindowPos( p_vout->p_sys->hwnd, 0, 1, 1,
 563                           rect_parent.right - rect_parent.left,
 564                           rect_parent.bottom - rect_parent.top, 0 );
 565
 566             SetWindowPos( p_vout->p_sys->hwnd, 0, 0, 0,
 567                           rect_parent.right - rect_parent.left,
 568                           rect_parent.bottom - rect_parent.top, 0 );
 569         }
 570     }
 571     else
 572     {
 573         vlc_mutex_unlock( &p_vout->p_sys->lock );
 574     }
 575
 576     /*
 577      * Position Change
 578      */
 579     if( p_vout->p_sys->i_changes & DX_POSITION_CHANGE )
 580     {
 581         p_vout->p_sys->i_changes &= ~DX_POSITION_CHANGE;
 582
 583         /* Check if we are still on the same monitor */
 584         if( p_vout->p_sys->MonitorFromWindow &&
 585             p_vout->p_sys->hmonitor !=
 586                 p_vout->p_sys->MonitorFromWindow( p_vout->p_sys->hwnd,
 587                                                   MONITOR_DEFAULTTONEAREST ) )
 588         {
 589             /* This will force the vout core to recreate the picture buffers */
 590             p_vout->i_changes |= VOUT_PICTURE_BUFFERS_CHANGE;
 591         }
 592     }
 593
 594     /* Check for cropping / aspect changes */
 595     if( p_vout->i_changes & VOUT_CROP_CHANGE ||
 596         p_vout->i_changes & VOUT_ASPECT_CHANGE )
 597     {
 598         p_vout->i_changes &= ~VOUT_CROP_CHANGE;
 599         p_vout->i_changes &= ~VOUT_ASPECT_CHANGE;
 600
 601         p_vout->fmt_out.i_x_offset = p_vout->fmt_in.i_x_offset;
 602         p_vout->fmt_out.i_y_offset = p_vout->fmt_in.i_y_offset;
 603         p_vout->fmt_out.i_visible_width = p_vout->fmt_in.i_visible_width;
 604         p_vout->fmt_out.i_visible_height = p_vout->fmt_in.i_visible_height;
 605         p_vout->fmt_out.i_aspect = p_vout->fmt_in.i_aspect;
 606         p_vout->fmt_out.i_sar_num = p_vout->fmt_in.i_sar_num;
 607         p_vout->fmt_out.i_sar_den = p_vout->fmt_in.i_sar_den;
 608         p_vout->output.i_aspect = p_vout->fmt_in.i_aspect;
 609         E_(UpdateRects)( p_vout, VLC_TRUE );
 610     }
 611
 612     /* We used to call the Win32 PeekMessage function here to read the window
 613      * messages. But since window can stay blocked into this function for a
 614      * long time (for example when you move your window on the screen), I
 615      * decided to isolate PeekMessage in another thread. */
 616
 617     if( p_vout->p_sys->i_changes & DX_WALLPAPER_CHANGE )
 618     {
 619         SwitchWallpaperMode( p_vout, !p_vout->p_sys->b_wallpaper );
 620         p_vout->p_sys->i_changes &= ~DX_WALLPAPER_CHANGE;
 621         DirectDrawUpdateOverlay( p_vout );
 622     }
 623
 624     /*
 625      * Fullscreen change
 626      */
 627     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE
 628         || p_vout->p_sys->i_changes & VOUT_FULLSCREEN_CHANGE )
 629     {
 630         Win32ToggleFullscreen( p_vout );
 631
 632         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 633         p_vout->p_sys->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 634     }
 635
 636     /*
 637      * Pointer change
 638      */
 639     if( p_vout->b_fullscreen && !p_vout->p_sys->b_cursor_hidden &&
 640         (mdate() - p_vout->p_sys->i_lastmoved) > 5000000 )
 641     {
 642         POINT point;
 643         HWND hwnd;
 644
 645         /* Hide the cursor only if it is inside our window */
 646         GetCursorPos( &point );
 647         hwnd = WindowFromPoint(point);
 648         if( hwnd == p_vout->p_sys->hwnd || hwnd == p_vout->p_sys->hvideownd )
 649         {
 650             PostMessage( p_vout->p_sys->hwnd, WM_VLC_HIDE_MOUSE, 0, 0 );
 651         }
 652         else
 653         {
 654             p_vout->p_sys->i_lastmoved = mdate();
 655         }
 656     }
 657
 658     /*
 659      * "Always on top" status change
 660      */
 661     if( p_vout->p_sys->b_on_top_change )
 662     {
 663         vlc_value_t val;
 664         HMENU hMenu = GetSystemMenu( p_vout->p_sys->hwnd, FALSE );
 665
 666         var_Get( p_vout, "video-on-top", &val );
 667
 668         /* Set the window on top if necessary */
 669         if( val.b_bool && !( GetWindowLong( p_vout->p_sys->hwnd, GWL_EXSTYLE )
 670                            & WS_EX_TOPMOST ) )
 671         {
 672             CheckMenuItem( hMenu, IDM_TOGGLE_ON_TOP,
 673                            MF_BYCOMMAND | MFS_CHECKED );
 674             SetWindowPos( p_vout->p_sys->hwnd, HWND_TOPMOST, 0, 0, 0, 0,
 675                           SWP_NOSIZE | SWP_NOMOVE );
 676         }
 677         else
 678         /* The window shouldn't be on top */
 679         if( !val.b_bool && ( GetWindowLong( p_vout->p_sys->hwnd, GWL_EXSTYLE )
 680                            & WS_EX_TOPMOST ) )
 681         {
 682             CheckMenuItem( hMenu, IDM_TOGGLE_ON_TOP,
 683                            MF_BYCOMMAND | MFS_UNCHECKED );
 684             SetWindowPos( p_vout->p_sys->hwnd, HWND_NOTOPMOST, 0, 0, 0, 0,
 685                           SWP_NOSIZE | SWP_NOMOVE );
 686         }
 687
 688         p_vout->p_sys->b_on_top_change = VLC_FALSE;
 689     }
 690
 691     /* Check if the event thread is still running */
 692     if( p_vout->p_sys->p_event->b_die )
 693     {
 694         return VLC_EGENERIC; /* exit */
 695     }
 696
 697     return VLC_SUCCESS;
 698 }
 699
 700 /*****************************************************************************
 701  * Display: displays previously rendered output
 702  *****************************************************************************
 703  * This function sends the currently rendered image to the display, wait until
 704  * it is displayed and switch the two rendering buffers, preparing next frame.
 705  *****************************************************************************/
 706 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
 707 {
 708     HRESULT dxresult;
 709
 710     if( (p_vout->p_sys->p_display == NULL) )
 711     {
 712         msg_Warn( p_vout, "no display!" );
 713         return;
 714     }
 715
 716     /* Our surface can be lost so be sure to check this
 717      * and restore it if need be */
 718     if( IDirectDrawSurface2_IsLost( p_vout->p_sys->p_display )
 719         == DDERR_SURFACELOST )
 720     {
 721         if( IDirectDrawSurface2_Restore( p_vout->p_sys->p_display ) == DD_OK &&
 722             p_vout->p_sys->b_using_overlay )
 723             DirectDrawUpdateOverlay( p_vout );
 724     }
 725
 726     if( !p_vout->p_sys->b_using_overlay )
 727     {
 728         DDBLTFX  ddbltfx;
 729
 730         /* We ask for the "NOTEARING" option */
 731         memset( &ddbltfx, 0, sizeof(DDBLTFX) );
 732         ddbltfx.dwSize = sizeof(DDBLTFX);
 733         ddbltfx.dwDDFX = DDBLTFX_NOTEARING;
 734
 735         /* Blit video surface to display */
 736         dxresult = IDirectDrawSurface2_Blt( p_vout->p_sys->p_display,
 737                                             &p_vout->p_sys->rect_dest_clipped,
 738                                             p_pic->p_sys->p_surface,
 739                                             &p_vout->p_sys->rect_src_clipped,
 740                                             DDBLT_ASYNC, &ddbltfx );
 741         if( dxresult != DD_OK )
 742         {
 743             msg_Warn( p_vout, "could not blit surface (error %li)", dxresult );
 744             return;
 745         }
 746     }
 747     else /* using overlay */
 748     {
 749         /* Flip the overlay buffers if we are using back buffers */
 750         if( p_pic->p_sys->p_front_surface == p_pic->p_sys->p_surface )
 751         {
 752             return;
 753         }
 754
 755         dxresult = IDirectDrawSurface2_Flip( p_pic->p_sys->p_front_surface,
 756                                              NULL, DDFLIP_WAIT );
 757         if( dxresult != DD_OK )
 758         {
 759             msg_Warn( p_vout, "could not flip overlay (error %li)", dxresult );
 760         }
 761
 762         /* set currently displayed pic */
 763         p_vout->p_sys->p_current_surface = p_pic->p_sys->p_front_surface;
 764
 765         /* Lock surface to get all the required info */
 766         if( DirectXLockSurface( p_vout, p_pic ) )
 767         {
 768             /* AAARRGG */
 769             msg_Warn( p_vout, "cannot lock surface" );
 770             return;
 771         }
 772         DirectXUnlockSurface( p_vout, p_pic );
 773     }
 774 }
 775
 776 /*
 777 ** this function is only used once when the first picture is received
 778 ** this function will show the video window once video is ready for
 779 ** display.
 780 */
 781
 782 static void FirstDisplay( vout_thread_t *p_vout, picture_t *p_pic )
 783 {
 784     /* get initial picture rendered on overlay surface */
 785     Display(p_vout, p_pic);
 786
 787     IDirectDraw_WaitForVerticalBlank(p_vout->p_sys->p_ddobject,
 788             DDWAITVB_BLOCKBEGIN, NULL);
 789
 790     if( p_vout->p_sys->b_using_overlay )
 791     {
 792         /* set the colorkey as the backgound brush for the video window */
 793         SetClassLong( p_vout->p_sys->hvideownd, GCL_HBRBACKGROUND,
 794                       (LONG)CreateSolidBrush( p_vout->p_sys->i_rgb_colorkey ) );
 795     }
 796     /*
 797     ** Video window is initially hidden, show it now since we got a
 798     ** picture to show.
 799     */
 800     SetWindowPos( p_vout->p_sys->hvideownd, NULL, 0, 0, 0, 0,
 801         SWP_ASYNCWINDOWPOS|
 802         SWP_FRAMECHANGED|
 803         SWP_SHOWWINDOW|
 804         SWP_NOMOVE|
 805         SWP_NOSIZE|
 806         SWP_NOZORDER );
 807
 808     /* use and restores proper display function for further pictures */
 809     p_vout->pf_display = Display;
 810 }
 811
 812 /* following functions are local */
 813
 814 /*****************************************************************************
 815  * DirectXEnumCallback: Device enumeration
 816  *****************************************************************************
 817  * This callback function is called by DirectDraw once for each
 818  * available DirectDraw device.
 819  *****************************************************************************/
 820 BOOL WINAPI DirectXEnumCallback( GUID* p_guid, LPTSTR psz_desc,
 821                                  LPTSTR psz_drivername, VOID* p_context,
 822                                  HMONITOR hmon )
 823 {
 824     vout_thread_t *p_vout = (vout_thread_t *)p_context;
 825     vlc_value_t device;
 826
 827     msg_Dbg( p_vout, "DirectXEnumCallback: %s, %s", psz_desc, psz_drivername );
 828
 829     if( hmon )
 830     {
 831         var_Get( p_vout, "directx-device", &device );
 832
 833         if( ( !device.psz_string || !*device.psz_string ) &&
 834             hmon == p_vout->p_sys->hmonitor )
 835         {
 836             if( device.psz_string ) free( device.psz_string );
 837         }
 838         else if( strcmp( psz_drivername, device.psz_string ) == 0 )
 839         {
 840             MONITORINFO monitor_info;
 841             monitor_info.cbSize = sizeof( MONITORINFO );
 842
 843             if( p_vout->p_sys->GetMonitorInfo( hmon, &monitor_info ) )
 844             {
 845                 RECT rect;
 846
 847                 /* Move window to the right screen */
 848                 GetWindowRect( p_vout->p_sys->hwnd, &rect );
 849                 if( !IntersectRect( &rect, &rect, &monitor_info.rcWork ) )
 850                 {
 851                     rect.left = monitor_info.rcWork.left;
 852                     rect.top = monitor_info.rcWork.top;
 853                     msg_Dbg( p_vout, "DirectXEnumCallback: setting window "
 854                              "position to %ld,%ld", rect.left, rect.top );
 855                     SetWindowPos( p_vout->p_sys->hwnd, NULL,
 856                                   rect.left, rect.top, 0, 0,
 857                                   SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 858                 }
 859             }
 860
 861             p_vout->p_sys->hmonitor = hmon;
 862             if( device.psz_string ) free( device.psz_string );
 863         }
 864         else
 865         {
 866             if( device.psz_string ) free( device.psz_string );
 867             return TRUE; /* Keep enumerating */
 868         }
 869
 870         msg_Dbg( p_vout, "selecting %s, %s", psz_desc, psz_drivername );
 871         p_vout->p_sys->p_display_driver = malloc( sizeof(GUID) );
 872         if( p_vout->p_sys->p_display_driver )
 873             memcpy( p_vout->p_sys->p_display_driver, p_guid, sizeof(GUID) );
 874     }
 875
 876     return TRUE; /* Keep enumerating */
 877 }
 878
 879 /*****************************************************************************
 880  * DirectXInitDDraw: Takes care of all the DirectDraw initialisations
 881  *****************************************************************************
 882  * This function initialise and allocate resources for DirectDraw.
 883  *****************************************************************************/
 884 static int DirectXInitDDraw( vout_thread_t *p_vout )
 885 {
 886     HRESULT dxresult;
 887     HRESULT (WINAPI *OurDirectDrawCreate)(GUID *,LPDIRECTDRAW *,IUnknown *);
 888     HRESULT (WINAPI *OurDirectDrawEnumerateEx)( LPDDENUMCALLBACKEXA, LPVOID,
 889                                                 DWORD );
 890     LPDIRECTDRAW p_ddobject;
 891
 892     msg_Dbg( p_vout, "DirectXInitDDraw" );
 893
 894     /* Load direct draw DLL */
 895     p_vout->p_sys->hddraw_dll = LoadLibrary(_T("DDRAW.DLL"));
 896     if( p_vout->p_sys->hddraw_dll == NULL )
 897     {
 898         msg_Warn( p_vout, "DirectXInitDDraw failed loading ddraw.dll" );
 899         goto error;
 900     }
 901
 902     OurDirectDrawCreate =
 903       (void *)GetProcAddress( p_vout->p_sys->hddraw_dll,
 904                               _T("DirectDrawCreate") );
 905     if( OurDirectDrawCreate == NULL )
 906     {
 907         msg_Err( p_vout, "DirectXInitDDraw failed GetProcAddress" );
 908         goto error;
 909     }
 910
 911     OurDirectDrawEnumerateEx =
 912       (void *)GetProcAddress( p_vout->p_sys->hddraw_dll,
 913 #ifndef UNICODE
 914                               "DirectDrawEnumerateExA" );
 915 #else
 916                               _T("DirectDrawEnumerateExW") );
 917 #endif
 918
 919     if( OurDirectDrawEnumerateEx && p_vout->p_sys->MonitorFromWindow )
 920     {
 921         vlc_value_t device;
 922
 923         var_Get( p_vout, "directx-device", &device );
 924         if( device.psz_string )
 925         {
 926             msg_Dbg( p_vout, "directx-device: %s", device.psz_string );
 927             free( device.psz_string );
 928         }
 929
 930         p_vout->p_sys->hmonitor =
 931             p_vout->p_sys->MonitorFromWindow( p_vout->p_sys->hwnd,
 932                                               MONITOR_DEFAULTTONEAREST );
 933
 934         /* Enumerate displays */
 935         OurDirectDrawEnumerateEx( DirectXEnumCallback, p_vout,
 936                                   DDENUM_ATTACHEDSECONDARYDEVICES );
 937     }
 938
 939     /* Initialize DirectDraw now */
 940     dxresult = OurDirectDrawCreate( p_vout->p_sys->p_display_driver,
 941                                     &p_ddobject, NULL );
 942     if( dxresult != DD_OK )
 943     {
 944         msg_Err( p_vout, "DirectXInitDDraw cannot initialize DDraw" );
 945         goto error;
 946     }
 947
 948     /* Get the IDirectDraw2 interface */
 949     dxresult = IDirectDraw_QueryInterface( p_ddobject, &IID_IDirectDraw2,
 950                                         (LPVOID *)&p_vout->p_sys->p_ddobject );
 951     /* Release the unused interface */
 952     IDirectDraw_Release( p_ddobject );
 953     if( dxresult != DD_OK )
 954     {
 955         msg_Err( p_vout, "cannot get IDirectDraw2 interface" );
 956         goto error;
 957     }
 958
 959     /* Set DirectDraw Cooperative level, ie what control we want over Windows
 960      * display */
 961     dxresult = IDirectDraw2_SetCooperativeLevel( p_vout->p_sys->p_ddobject,
 962                                                  NULL, DDSCL_NORMAL );
 963     if( dxresult != DD_OK )
 964     {
 965         msg_Err( p_vout, "cannot set direct draw cooperative level" );
 966         goto error;
 967     }
 968
 969     /* Get the size of the current display device */
 970     if( p_vout->p_sys->hmonitor && p_vout->p_sys->GetMonitorInfo )
 971     {
 972         MONITORINFO monitor_info;
 973         monitor_info.cbSize = sizeof( MONITORINFO );
 974         p_vout->p_sys->GetMonitorInfo( p_vout->p_sys->hmonitor,
 975                                        &monitor_info );
 976         p_vout->p_sys->rect_display = monitor_info.rcMonitor;
 977     }
 978     else
 979     {
 980         p_vout->p_sys->rect_display.left = 0;
 981         p_vout->p_sys->rect_display.top = 0;
 982         p_vout->p_sys->rect_display.right  = GetSystemMetrics(SM_CXSCREEN);
 983         p_vout->p_sys->rect_display.bottom = GetSystemMetrics(SM_CYSCREEN);
 984     }
 985
 986     msg_Dbg( p_vout, "screen dimensions (%lix%li,%lix%li)",
 987              p_vout->p_sys->rect_display.left,
 988              p_vout->p_sys->rect_display.top,
 989              p_vout->p_sys->rect_display.right,
 990              p_vout->p_sys->rect_display.bottom );
 991
 992     /* Probe the capabilities of the hardware */
 993     DirectXGetDDrawCaps( p_vout );
 994
 995     msg_Dbg( p_vout, "End DirectXInitDDraw" );
 996     return VLC_SUCCESS;
 997
 998  error:
 999     if( p_vout->p_sys->p_ddobject )
1000         IDirectDraw2_Release( p_vout->p_sys->p_ddobject );
1001     if( p_vout->p_sys->hddraw_dll )
1002         FreeLibrary( p_vout->p_sys->hddraw_dll );
1003     p_vout->p_sys->hddraw_dll = NULL;
1004     p_vout->p_sys->p_ddobject = NULL;
1005     return VLC_EGENERIC;
1006 }
1007
1008 /*****************************************************************************
1009  * DirectXCreateDisplay: create the DirectDraw display.
1010  *****************************************************************************
1011  * Create and initialize display according to preferences specified in the vout
1012  * thread fields.
1013  *****************************************************************************/
1014 static int DirectXCreateDisplay( vout_thread_t *p_vout )
1015 {
1016     HRESULT              dxresult;
1017     DDSURFACEDESC        ddsd;
1018     LPDIRECTDRAWSURFACE  p_display;
1019
1020     msg_Dbg( p_vout, "DirectXCreateDisplay" );
1021
1022     /* Now get the primary surface. This surface is what you actually see
1023      * on your screen */
1024     memset( &ddsd, 0, sizeof( DDSURFACEDESC ));
1025     ddsd.dwSize = sizeof(DDSURFACEDESC);
1026     ddsd.dwFlags = DDSD_CAPS;
1027     ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
1028
1029     dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1030                                            &ddsd, &p_display, NULL );
1031     if( dxresult != DD_OK )
1032     {
1033         msg_Err( p_vout, "cannot get primary surface (error %li)", dxresult );
1034         return VLC_EGENERIC;
1035     }
1036
1037     dxresult = IDirectDrawSurface_QueryInterface( p_display,
1038                                          &IID_IDirectDrawSurface2,
1039                                          (LPVOID *)&p_vout->p_sys->p_display );
1040     /* Release the old interface */
1041     IDirectDrawSurface_Release( p_display );
1042     if ( dxresult != DD_OK )
1043     {
1044         msg_Err( p_vout, "cannot query IDirectDrawSurface2 interface "
1045                          "(error %li)", dxresult );
1046         return VLC_EGENERIC;
1047     }
1048
1049     /* The clipper will be used only in non-overlay mode */
1050     DirectXCreateClipper( p_vout );
1051
1052     /* Make sure the colorkey will be painted */
1053     p_vout->p_sys->i_colorkey = 1;
1054     p_vout->p_sys->i_rgb_colorkey =
1055         DirectXFindColorkey( p_vout, &p_vout->p_sys->i_colorkey );
1056
1057     E_(UpdateRects)( p_vout, VLC_TRUE );
1058
1059     return VLC_SUCCESS;
1060 }
1061
1062 /*****************************************************************************
1063  * DirectXCreateClipper: Create a clipper that will be used when blitting the
1064  *                       RGB surface to the main display.
1065  *****************************************************************************
1066  * This clipper prevents us to modify by mistake anything on the screen
1067  * which doesn't belong to our window. For example when a part of our video
1068  * window is hidden by another window.
1069  *****************************************************************************/
1070 static int DirectXCreateClipper( vout_thread_t *p_vout )
1071 {
1072     HRESULT dxresult;
1073
1074     msg_Dbg( p_vout, "DirectXCreateClipper" );
1075
1076     /* Create the clipper */
1077     dxresult = IDirectDraw2_CreateClipper( p_vout->p_sys->p_ddobject, 0,
1078                                            &p_vout->p_sys->p_clipper, NULL );
1079     if( dxresult != DD_OK )
1080     {
1081         msg_Warn( p_vout, "cannot create clipper (error %li)", dxresult );
1082         goto error;
1083     }
1084
1085     /* Associate the clipper to the window */
1086     dxresult = IDirectDrawClipper_SetHWnd( p_vout->p_sys->p_clipper, 0,
1087                                            p_vout->p_sys->hvideownd );
1088     if( dxresult != DD_OK )
1089     {
1090         msg_Warn( p_vout, "cannot attach clipper to window (error %li)",
1091                           dxresult );
1092         goto error;
1093     }
1094
1095     /* associate the clipper with the surface */
1096     dxresult = IDirectDrawSurface_SetClipper(p_vout->p_sys->p_display,
1097                                              p_vout->p_sys->p_clipper);
1098     if( dxresult != DD_OK )
1099     {
1100         msg_Warn( p_vout, "cannot attach clipper to surface (error %li)",
1101                           dxresult );
1102         goto error;
1103     }
1104
1105     return VLC_SUCCESS;
1106
1107  error:
1108     if( p_vout->p_sys->p_clipper )
1109     {
1110         IDirectDrawClipper_Release( p_vout->p_sys->p_clipper );
1111     }
1112     p_vout->p_sys->p_clipper = NULL;
1113     return VLC_EGENERIC;
1114 }
1115
1116 /*****************************************************************************
1117  * DirectXCreateSurface: create an YUV overlay or RGB surface for the video.
1118  *****************************************************************************
1119  * The best method of display is with an YUV overlay because the YUV->RGB
1120  * conversion is done in hardware.
1121  * You can also create a plain RGB surface.
1122  * ( Maybe we could also try an RGB overlay surface, which could have hardware
1123  * scaling and which would also be faster in window mode because you don't
1124  * need to do any blitting to the main display...)
1125  *****************************************************************************/
1126 static int DirectXCreateSurface( vout_thread_t *p_vout,
1127                                  LPDIRECTDRAWSURFACE2 *pp_surface_final,
1128                                  int i_chroma, int b_overlay,
1129                                  int i_backbuffers )
1130 {
1131     HRESULT dxresult;
1132     LPDIRECTDRAWSURFACE p_surface;
1133     DDSURFACEDESC ddsd;
1134
1135     /* Create the video surface */
1136     if( b_overlay )
1137     {
1138         /* Now try to create the YUV overlay surface.
1139          * This overlay will be displayed on top of the primary surface.
1140          * A color key is used to determine whether or not the overlay will be
1141          * displayed, ie the overlay will be displayed in place of the primary
1142          * surface wherever the primary surface will have this color.
1143          * The video window has been created with a background of this color so
1144          * the overlay will be only displayed on top of this window */
1145
1146         memset( &ddsd, 0, sizeof( DDSURFACEDESC ));
1147         ddsd.dwSize = sizeof(DDSURFACEDESC);
1148         ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1149         ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
1150         ddsd.ddpfPixelFormat.dwFourCC = i_chroma;
1151         ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT;
1152         ddsd.dwFlags |= (i_backbuffers ? DDSD_BACKBUFFERCOUNT : 0);
1153         ddsd.ddsCaps.dwCaps = DDSCAPS_OVERLAY | DDSCAPS_VIDEOMEMORY;
1154         ddsd.ddsCaps.dwCaps |= (i_backbuffers ? DDSCAPS_COMPLEX | DDSCAPS_FLIP
1155                                 : 0 );
1156         ddsd.dwHeight = p_vout->render.i_height;
1157         ddsd.dwWidth = p_vout->render.i_width;
1158         ddsd.dwBackBufferCount = i_backbuffers;
1159
1160         dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1161                                                &ddsd, &p_surface, NULL );
1162         if( dxresult != DD_OK )
1163         {
1164             *pp_surface_final = NULL;
1165             return VLC_EGENERIC;
1166         }
1167     }
1168
1169     if( !b_overlay )
1170     {
1171         vlc_bool_t b_rgb_surface =
1172             ( i_chroma == VLC_FOURCC('R','G','B','2') )
1173           || ( i_chroma == VLC_FOURCC('R','V','1','5') )
1174            || ( i_chroma == VLC_FOURCC('R','V','1','6') )
1175             || ( i_chroma == VLC_FOURCC('R','V','2','4') )
1176              || ( i_chroma == VLC_FOURCC('R','V','3','2') );
1177
1178         memset( &ddsd, 0, sizeof( DDSURFACEDESC ) );
1179         ddsd.dwSize = sizeof(DDSURFACEDESC);
1180         ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1181         ddsd.dwFlags = DDSD_HEIGHT | DDSD_WIDTH | DDSD_CAPS;
1182         ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
1183         ddsd.dwHeight = p_vout->render.i_height;
1184         ddsd.dwWidth = p_vout->render.i_width;
1185
1186         if( p_vout->p_sys->b_use_sysmem )
1187             ddsd.ddsCaps.dwCaps |= DDSCAPS_SYSTEMMEMORY;
1188         else
1189             ddsd.ddsCaps.dwCaps |= DDSCAPS_VIDEOMEMORY;
1190
1191         if( !b_rgb_surface )
1192         {
1193             ddsd.dwFlags |= DDSD_PIXELFORMAT;
1194             ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
1195             ddsd.ddpfPixelFormat.dwFourCC = i_chroma;
1196         }
1197
1198         dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1199                                                &ddsd, &p_surface, NULL );
1200         if( dxresult != DD_OK )
1201         {
1202             *pp_surface_final = NULL;
1203             return VLC_EGENERIC;
1204         }
1205     }
1206
1207     /* Now that the surface is created, try to get a newer DirectX interface */
1208     dxresult = IDirectDrawSurface_QueryInterface( p_surface,
1209                                      &IID_IDirectDrawSurface2,
1210                                      (LPVOID *)pp_surface_final );
1211     IDirectDrawSurface_Release( p_surface );    /* Release the old interface */
1212     if ( dxresult != DD_OK )
1213     {
1214         msg_Err( p_vout, "cannot query IDirectDrawSurface2 interface "
1215                          "(error %li)", dxresult );
1216         *pp_surface_final = NULL;
1217         return VLC_EGENERIC;
1218     }
1219
1220     if( b_overlay )
1221     {
1222         /* Check the overlay is useable as some graphics cards allow creating
1223          * several overlays but only one can be used at one time. */
1224         p_vout->p_sys->p_current_surface = *pp_surface_final;
1225         if( DirectDrawUpdateOverlay( p_vout ) != VLC_SUCCESS )
1226         {
1227             IDirectDrawSurface2_Release( *pp_surface_final );
1228             *pp_surface_final = NULL;
1229             msg_Err( p_vout, "overlay unuseable (might already be in use)" );
1230             return VLC_EGENERIC;
1231         }
1232     }
1233
1234     return VLC_SUCCESS;
1235 }
1236
1237 /*****************************************************************************
1238  * DirectDrawUpdateOverlay: Move or resize overlay surface on video display.
1239  *****************************************************************************
1240  * This function is used to move or resize an overlay surface on the screen.
1241  * Ususally the overlay is moved by the user and thus, by a move or resize
1242  * event (in Manage).
1243  *****************************************************************************/
1244 int DirectDrawUpdateOverlay( vout_thread_t *p_vout )
1245 {
1246     DDOVERLAYFX     ddofx;
1247     DWORD           dwFlags;
1248     HRESULT         dxresult;
1249     RECT            rect_src = p_vout->p_sys->rect_src_clipped;
1250     RECT            rect_dest = p_vout->p_sys->rect_dest_clipped;
1251
1252     if( !p_vout->p_sys->b_using_overlay ) return VLC_EGENERIC;
1253
1254     if( p_vout->p_sys->b_wallpaper )
1255     {
1256         int i_x, i_y, i_width, i_height;
1257
1258         rect_src.left = p_vout->fmt_out.i_x_offset;
1259         rect_src.top = p_vout->fmt_out.i_y_offset;
1260         rect_src.right = rect_src.left + p_vout->fmt_out.i_visible_width;
1261         rect_src.bottom = rect_src.top + p_vout->fmt_out.i_visible_height;
1262
1263         rect_dest = p_vout->p_sys->rect_display;
1264         vout_PlacePicture( p_vout, rect_dest.right, rect_dest.bottom,
1265                            &i_x, &i_y, &i_width, &i_height );
1266
1267         rect_dest.left += i_x;
1268         rect_dest.right = rect_dest.left + i_width;
1269         rect_dest.top += i_y;
1270         rect_dest.bottom = rect_dest.top + i_height;
1271     }
1272
1273     vlc_mutex_lock( &p_vout->p_sys->lock );
1274     if( p_vout->p_sys->p_current_surface == NULL )
1275     {
1276         vlc_mutex_unlock( &p_vout->p_sys->lock );
1277         return VLC_EGENERIC;
1278     }
1279
1280     /* The new window dimensions should already have been computed by the
1281      * caller of this function */
1282
1283     /* Position and show the overlay */
1284     memset(&ddofx, 0, sizeof(DDOVERLAYFX));
1285     ddofx.dwSize = sizeof(DDOVERLAYFX);
1286     ddofx.dckDestColorkey.dwColorSpaceLowValue = p_vout->p_sys->i_colorkey;
1287     ddofx.dckDestColorkey.dwColorSpaceHighValue = p_vout->p_sys->i_colorkey;
1288
1289     dwFlags = DDOVER_SHOW | DDOVER_KEYDESTOVERRIDE;
1290
1291     dxresult = IDirectDrawSurface2_UpdateOverlay(
1292                    p_vout->p_sys->p_current_surface,
1293                    &rect_src, p_vout->p_sys->p_display, &rect_dest,
1294                    dwFlags, &ddofx );
1295
1296     vlc_mutex_unlock( &p_vout->p_sys->lock );
1297
1298     if(dxresult != DD_OK)
1299     {
1300         msg_Warn( p_vout, "DirectDrawUpdateOverlay cannot move/resize overlay" );
1301         return VLC_EGENERIC;
1302     }
1303
1304     return VLC_SUCCESS;
1305 }
1306
1307 /*****************************************************************************
1308  * DirectXCloseDDraw: Release the DDraw object allocated by DirectXInitDDraw
1309  *****************************************************************************
1310  * This function returns all resources allocated by DirectXInitDDraw.
1311  *****************************************************************************/
1312 static void DirectXCloseDDraw( vout_thread_t *p_vout )
1313 {
1314     msg_Dbg( p_vout, "DirectXCloseDDraw" );
1315     if( p_vout->p_sys->p_ddobject != NULL )
1316     {
1317         IDirectDraw2_Release(p_vout->p_sys->p_ddobject);
1318         p_vout->p_sys->p_ddobject = NULL;
1319     }
1320
1321     if( p_vout->p_sys->hddraw_dll != NULL )
1322     {
1323         FreeLibrary( p_vout->p_sys->hddraw_dll );
1324         p_vout->p_sys->hddraw_dll = NULL;
1325     }
1326
1327     if( p_vout->p_sys->p_display_driver != NULL )
1328     {
1329         free( p_vout->p_sys->p_display_driver );
1330         p_vout->p_sys->p_display_driver = NULL;
1331     }
1332
1333     p_vout->p_sys->hmonitor = NULL;
1334 }
1335
1336 /*****************************************************************************
1337  * DirectXCloseDisplay: close and reset the DirectX display device
1338  *****************************************************************************
1339  * This function returns all resources allocated by DirectXCreateDisplay.
1340  *****************************************************************************/
1341 static void DirectXCloseDisplay( vout_thread_t *p_vout )
1342 {
1343     msg_Dbg( p_vout, "DirectXCloseDisplay" );
1344
1345     if( p_vout->p_sys->p_clipper != NULL )
1346     {
1347         msg_Dbg( p_vout, "DirectXCloseDisplay clipper" );
1348         IDirectDrawClipper_Release( p_vout->p_sys->p_clipper );
1349         p_vout->p_sys->p_clipper = NULL;
1350     }
1351
1352     if( p_vout->p_sys->p_display != NULL )
1353     {
1354         msg_Dbg( p_vout, "DirectXCloseDisplay display" );
1355         IDirectDrawSurface2_Release( p_vout->p_sys->p_display );
1356         p_vout->p_sys->p_display = NULL;
1357     }
1358 }
1359
1360 /*****************************************************************************
1361  * DirectXCloseSurface: close the YUV overlay or RGB surface.
1362  *****************************************************************************
1363  * This function returns all resources allocated for the surface.
1364  *****************************************************************************/
1365 static void DirectXCloseSurface( vout_thread_t *p_vout,
1366                                  LPDIRECTDRAWSURFACE2 p_surface )
1367 {
1368     msg_Dbg( p_vout, "DirectXCloseSurface" );
1369     if( p_surface != NULL )
1370     {
1371         IDirectDrawSurface2_Release( p_surface );
1372     }
1373 }
1374
1375 /*****************************************************************************
1376  * NewPictureVec: allocate a vector of identical pictures
1377  *****************************************************************************
1378  * Returns 0 on success, -1 otherwise
1379  *****************************************************************************/
1380 static int NewPictureVec( vout_thread_t *p_vout, picture_t *p_pic,
1381                           int i_num_pics )
1382 {
1383     int i;
1384     int i_ret = VLC_SUCCESS;
1385     LPDIRECTDRAWSURFACE2 p_surface;
1386
1387     msg_Dbg( p_vout, "NewPictureVec overlay:%s chroma:%.4s",
1388              p_vout->p_sys->b_using_overlay ? "yes" : "no",
1389              (char *)&p_vout->output.i_chroma );
1390
1391     I_OUTPUTPICTURES = 0;
1392
1393     /* First we try to use an YUV overlay surface.
1394      * The overlay surface that we create won't be used to decode directly
1395      * into it because accessing video memory directly is way to slow (remember
1396      * that pictures are decoded macroblock per macroblock). Instead the video
1397      * will be decoded in picture buffers in system memory which will then be
1398      * memcpy() to the overlay surface. */
1399     if( p_vout->p_sys->b_using_overlay )
1400     {
1401         /* Triple buffering rocks! it doesn't have any processing overhead
1402          * (you don't have to wait for the vsync) and provides for a very nice
1403          * video quality (no tearing). */
1404         if( p_vout->p_sys->b_3buf_overlay )
1405             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1406                                           p_vout->output.i_chroma,
1407                                           p_vout->p_sys->b_using_overlay,
1408                                           2 /* number of backbuffers */ );
1409
1410         if( !p_vout->p_sys->b_3buf_overlay || i_ret != VLC_SUCCESS )
1411         {
1412             /* Try to reduce the number of backbuffers */
1413             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1414                                           p_vout->output.i_chroma,
1415                                           p_vout->p_sys->b_using_overlay,
1416                                           0 /* number of backbuffers */ );
1417         }
1418
1419         if( i_ret == VLC_SUCCESS )
1420         {
1421             DDSCAPS dds_caps;
1422             picture_t front_pic;
1423             picture_sys_t front_pic_sys;
1424             front_pic.p_sys = &front_pic_sys;
1425
1426             /* Allocate internal structure */
1427             p_pic[0].p_sys = malloc( sizeof( picture_sys_t ) );
1428             if( p_pic[0].p_sys == NULL )
1429             {
1430                 DirectXCloseSurface( p_vout, p_surface );
1431                 return VLC_ENOMEM;
1432             }
1433
1434             /* set front buffer */
1435             p_pic[0].p_sys->p_front_surface = p_surface;
1436
1437             /* Get the back buffer */
1438             memset( &dds_caps, 0, sizeof( DDSCAPS ) );
1439             dds_caps.dwCaps = DDSCAPS_BACKBUFFER;
1440             if( DD_OK != IDirectDrawSurface2_GetAttachedSurface(
1441                                                 p_surface, &dds_caps,
1442                                                 &p_pic[0].p_sys->p_surface ) )
1443             {
1444                 msg_Warn( p_vout, "NewPictureVec could not get back buffer" );
1445                 /* front buffer is the same as back buffer */
1446                 p_pic[0].p_sys->p_surface = p_surface;
1447             }
1448
1449
1450             p_vout->p_sys->p_current_surface = front_pic.p_sys->p_surface =
1451                 p_pic[0].p_sys->p_front_surface;
1452
1453             /* Reset the front buffer memory */
1454             if( DirectXLockSurface( p_vout, &front_pic ) == VLC_SUCCESS )
1455             {
1456                 int i,j;
1457                 for( i = 0; i < front_pic.i_planes; i++ )
1458                     for( j = 0; j < front_pic.p[i].i_visible_lines; j++)
1459                         memset( front_pic.p[i].p_pixels + j *
1460                                 front_pic.p[i].i_pitch, 127,
1461                                 front_pic.p[i].i_visible_pitch );
1462
1463                 DirectXUnlockSurface( p_vout, &front_pic );
1464             }
1465
1466             DirectDrawUpdateOverlay( p_vout );
1467             I_OUTPUTPICTURES = 1;
1468             msg_Dbg( p_vout, "YUV overlay created successfully" );
1469         }
1470     }
1471
1472     /* As we can't have an overlay, we'll try to create a plain offscreen
1473      * surface. This surface will reside in video memory because there's a
1474      * better chance then that we'll be able to use some kind of hardware
1475      * acceleration like rescaling, blitting or YUV->RGB conversions.
1476      * We then only need to blit this surface onto the main display when we
1477      * want to display it */
1478     if( !p_vout->p_sys->b_using_overlay )
1479     {
1480         if( p_vout->p_sys->b_hw_yuv )
1481         {
1482             DWORD i_codes;
1483             DWORD *pi_codes;
1484             vlc_bool_t b_result = VLC_FALSE;
1485
1486             /* Check if the chroma is supported first. This is required
1487              * because a few buggy drivers don't mind creating the surface
1488              * even if they don't know about the chroma. */
1489             if( IDirectDraw2_GetFourCCCodes( p_vout->p_sys->p_ddobject,
1490                                              &i_codes, NULL ) == DD_OK )
1491             {
1492                 pi_codes = malloc( i_codes * sizeof(DWORD) );
1493                 if( pi_codes && IDirectDraw2_GetFourCCCodes(
1494                     p_vout->p_sys->p_ddobject, &i_codes, pi_codes ) == DD_OK )
1495                 {
1496                     for( i = 0; i < (int)i_codes; i++ )
1497                     {
1498                         if( p_vout->output.i_chroma == pi_codes[i] )
1499                         {
1500                             b_result = VLC_TRUE;
1501                             break;
1502                         }
1503                     }
1504                 }
1505             }
1506
1507             if( b_result )
1508                 i_ret = DirectXCreateSurface( p_vout, &p_surface,
1509                                               p_vout->output.i_chroma,
1510                                               0 /* no overlay */,
1511                                               0 /* no back buffers */ );
1512             else
1513                 p_vout->p_sys->b_hw_yuv = VLC_FALSE;
1514         }
1515
1516         if( i_ret || !p_vout->p_sys->b_hw_yuv )
1517         {
1518             /* Our last choice is to use a plain RGB surface */
1519             DDPIXELFORMAT ddpfPixelFormat;
1520
1521             ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1522             IDirectDrawSurface2_GetPixelFormat( p_vout->p_sys->p_display,
1523                                                 &ddpfPixelFormat );
1524
1525             if( ddpfPixelFormat.dwFlags & DDPF_RGB )
1526             {
1527                 switch( ddpfPixelFormat.dwRGBBitCount )
1528                 {
1529                 case 8:
1530                     p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
1531                     p_vout->output.pf_setpalette = SetPalette;
1532                     break;
1533                 case 15:
1534                     p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5');
1535                     break;
1536                 case 16:
1537                     p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
1538                     break;
1539                 case 24:
1540                     p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
1541                     break;
1542                 case 32:
1543                     p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
1544                     break;
1545                 default:
1546                     msg_Err( p_vout, "unknown screen depth" );
1547                     return VLC_EGENERIC;
1548                 }
1549                 p_vout->output.i_rmask = ddpfPixelFormat.dwRBitMask;
1550                 p_vout->output.i_gmask = ddpfPixelFormat.dwGBitMask;
1551                 p_vout->output.i_bmask = ddpfPixelFormat.dwBBitMask;
1552             }
1553
1554             p_vout->p_sys->b_hw_yuv = 0;
1555
1556             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1557                                           p_vout->output.i_chroma,
1558                                           0 /* no overlay */,
1559                                           0 /* no back buffers */ );
1560
1561             if( i_ret && !p_vout->p_sys->b_use_sysmem )
1562             {
1563                 /* Give it a last try with b_use_sysmem enabled */
1564                 p_vout->p_sys->b_use_sysmem = 1;
1565
1566                 i_ret = DirectXCreateSurface( p_vout, &p_surface,
1567                                               p_vout->output.i_chroma,
1568                                               0 /* no overlay */,
1569                                               0 /* no back buffers */ );
1570             }
1571         }
1572
1573         if( i_ret == VLC_SUCCESS )
1574         {
1575             /* Allocate internal structure */
1576             p_pic[0].p_sys = malloc( sizeof( picture_sys_t ) );
1577             if( p_pic[0].p_sys == NULL )
1578             {
1579                 DirectXCloseSurface( p_vout, p_surface );
1580                 return VLC_ENOMEM;
1581             }
1582
1583             p_pic[0].p_sys->p_surface = p_pic[0].p_sys->p_front_surface
1584                 = p_surface;
1585
1586             I_OUTPUTPICTURES = 1;
1587
1588             msg_Dbg( p_vout, "created plain surface of chroma:%.4s",
1589                      (char *)&p_vout->output.i_chroma );
1590         }
1591     }
1592
1593
1594     /* Now that we've got all our direct-buffers, we can finish filling in the
1595      * picture_t structures */
1596     for( i = 0; i < I_OUTPUTPICTURES; i++ )
1597     {
1598         p_pic[i].i_status = DESTROYED_PICTURE;
1599         p_pic[i].i_type   = DIRECT_PICTURE;
1600         p_pic[i].b_slow   = VLC_TRUE;
1601         p_pic[i].pf_lock  = DirectXLockSurface;
1602         p_pic[i].pf_unlock = DirectXUnlockSurface;
1603         PP_OUTPUTPICTURE[i] = &p_pic[i];
1604
1605         if( DirectXLockSurface( p_vout, &p_pic[i] ) != VLC_SUCCESS )
1606         {
1607             /* AAARRGG */
1608             FreePictureVec( p_vout, p_pic, I_OUTPUTPICTURES );
1609             I_OUTPUTPICTURES = 0;
1610             msg_Err( p_vout, "cannot lock surface" );
1611             return VLC_EGENERIC;
1612         }
1613         DirectXUnlockSurface( p_vout, &p_pic[i] );
1614     }
1615
1616     msg_Dbg( p_vout, "End NewPictureVec (%s)",
1617              I_OUTPUTPICTURES ? "succeeded" : "failed" );
1618
1619     return VLC_SUCCESS;
1620 }
1621
1622 /*****************************************************************************
1623  * FreePicture: destroy a picture vector allocated with NewPictureVec
1624  *****************************************************************************
1625  *
1626  *****************************************************************************/
1627 static void FreePictureVec( vout_thread_t *p_vout, picture_t *p_pic,
1628                             int i_num_pics )
1629 {
1630     int i;
1631
1632     vlc_mutex_lock( &p_vout->p_sys->lock );
1633     p_vout->p_sys->p_current_surface = 0;
1634     vlc_mutex_unlock( &p_vout->p_sys->lock );
1635
1636     for( i = 0; i < i_num_pics; i++ )
1637     {
1638         DirectXCloseSurface( p_vout, p_pic[i].p_sys->p_front_surface );
1639
1640         for( i = 0; i < i_num_pics; i++ )
1641         {
1642             free( p_pic[i].p_sys );
1643         }
1644     }
1645 }
1646
1647 /*****************************************************************************
1648  * UpdatePictureStruct: updates the internal data in the picture_t structure
1649  *****************************************************************************
1650  * This will setup stuff for use by the video_output thread
1651  *****************************************************************************/
1652 static int UpdatePictureStruct( vout_thread_t *p_vout, picture_t *p_pic,
1653                                 int i_chroma )
1654 {
1655     switch( p_vout->output.i_chroma )
1656     {
1657         case VLC_FOURCC('R','G','B','2'):
1658         case VLC_FOURCC('R','V','1','5'):
1659         case VLC_FOURCC('R','V','1','6'):
1660         case VLC_FOURCC('R','V','2','4'):
1661         case VLC_FOURCC('R','V','3','2'):
1662             p_pic->p->p_pixels = p_pic->p_sys->ddsd.lpSurface;
1663             p_pic->p->i_lines = p_vout->output.i_height;
1664             p_pic->p->i_visible_lines = p_vout->output.i_height;
1665             p_pic->p->i_pitch = p_pic->p_sys->ddsd.lPitch;
1666             switch( p_vout->output.i_chroma )
1667             {
1668                 case VLC_FOURCC('R','G','B','2'):
1669                     p_pic->p->i_pixel_pitch = 1;
1670                     break;
1671                 case VLC_FOURCC('R','V','1','5'):
1672                 case VLC_FOURCC('R','V','1','6'):
1673                     p_pic->p->i_pixel_pitch = 2;
1674                     break;
1675                 case VLC_FOURCC('R','V','2','4'):
1676                     p_pic->p->i_pixel_pitch = 3;
1677                     break;
1678                 case VLC_FOURCC('R','V','3','2'):
1679                     p_pic->p->i_pixel_pitch = 4;
1680                     break;
1681                 default:
1682                     return VLC_EGENERIC;
1683             }
1684             p_pic->p->i_visible_pitch = p_vout->output.i_width *
1685               p_pic->p->i_pixel_pitch;
1686             p_pic->i_planes = 1;
1687             break;
1688
1689         case VLC_FOURCC('Y','V','1','2'):
1690         case VLC_FOURCC('I','4','2','0'):
1691
1692             /* U and V inverted compared to I420
1693              * Fixme: this should be handled by the vout core */
1694             p_vout->output.i_chroma = VLC_FOURCC('I','4','2','0');
1695
1696             p_pic->Y_PIXELS = p_pic->p_sys->ddsd.lpSurface;
1697             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1698             p_pic->p[Y_PLANE].i_visible_lines = p_vout->output.i_height;
1699             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->ddsd.lPitch;
1700             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1701             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width *
1702               p_pic->p[Y_PLANE].i_pixel_pitch;
1703
1704             p_pic->V_PIXELS =  p_pic->Y_PIXELS
1705               + p_pic->p[Y_PLANE].i_lines * p_pic->p[Y_PLANE].i_pitch;
1706             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1707             p_pic->p[V_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1708             p_pic->p[V_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1709             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1710             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1711               p_pic->p[V_PLANE].i_pixel_pitch;
1712
1713             p_pic->U_PIXELS = p_pic->V_PIXELS
1714               + p_pic->p[V_PLANE].i_lines * p_pic->p[V_PLANE].i_pitch;
1715             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1716             p_pic->p[U_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1717             p_pic->p[U_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1718             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1719             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1720               p_pic->p[U_PLANE].i_pixel_pitch;
1721
1722             p_pic->i_planes = 3;
1723             break;
1724
1725         case VLC_FOURCC('I','Y','U','V'):
1726
1727             p_pic->Y_PIXELS = p_pic->p_sys->ddsd.lpSurface;
1728             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1729             p_pic->p[Y_PLANE].i_visible_lines = p_vout->output.i_height;
1730             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->ddsd.lPitch;
1731             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1732             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width *
1733               p_pic->p[Y_PLANE].i_pixel_pitch;
1734
1735             p_pic->U_PIXELS = p_pic->Y_PIXELS
1736               + p_pic->p[Y_PLANE].i_lines * p_pic->p[Y_PLANE].i_pitch;
1737             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1738             p_pic->p[U_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1739             p_pic->p[U_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1740             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1741             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1742               p_pic->p[U_PLANE].i_pixel_pitch;
1743
1744             p_pic->V_PIXELS =  p_pic->U_PIXELS
1745               + p_pic->p[U_PLANE].i_lines * p_pic->p[U_PLANE].i_pitch;
1746             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1747             p_pic->p[V_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1748             p_pic->p[V_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1749             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1750             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1751               p_pic->p[V_PLANE].i_pixel_pitch;
1752
1753             p_pic->i_planes = 3;
1754             break;
1755
1756         case VLC_FOURCC('U','Y','V','Y'):
1757         case VLC_FOURCC('Y','U','Y','2'):
1758
1759             p_pic->p->p_pixels = p_pic->p_sys->ddsd.lpSurface;
1760             p_pic->p->i_lines = p_vout->output.i_height;
1761             p_pic->p->i_visible_lines = p_vout->output.i_height;
1762             p_pic->p->i_pitch = p_pic->p_sys->ddsd.lPitch;
1763             p_pic->p->i_pixel_pitch = 2;
1764             p_pic->p->i_visible_pitch = p_vout->output.i_width *
1765               p_pic->p->i_pixel_pitch;
1766
1767             p_pic->i_planes = 1;
1768             break;
1769
1770         default:
1771             /* Unknown chroma, tell the guy to get lost */
1772             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1773                      p_vout->output.i_chroma,
1774                      (char*)&p_vout->output.i_chroma );
1775             return VLC_EGENERIC;
1776     }
1777
1778     return VLC_SUCCESS;
1779 }
1780
1781 /*****************************************************************************
1782  * DirectXGetDDrawCaps: Probe the capabilities of the hardware
1783  *****************************************************************************
1784  * It is nice to know which features are supported by the hardware so we can
1785  * find ways to optimize our rendering.
1786  *****************************************************************************/
1787 static void DirectXGetDDrawCaps( vout_thread_t *p_vout )
1788 {
1789     DDCAPS ddcaps;
1790     HRESULT dxresult;
1791
1792     /* This is just an indication of whether or not we'll support overlay,
1793      * but with this test we don't know if we support YUV overlay */
1794     memset( &ddcaps, 0, sizeof( DDCAPS ));
1795     ddcaps.dwSize = sizeof(DDCAPS);
1796     dxresult = IDirectDraw2_GetCaps( p_vout->p_sys->p_ddobject,
1797                                      &ddcaps, NULL );
1798     if(dxresult != DD_OK )
1799     {
1800         msg_Warn( p_vout, "cannot get caps" );
1801     }
1802     else
1803     {
1804         vlc_bool_t bHasOverlay, bHasOverlayFourCC, bCanDeinterlace,
1805              bHasColorKey, bCanStretch, bCanBltFourcc,
1806              bAlignBoundarySrc, bAlignBoundaryDest,
1807              bAlignSizeSrc, bAlignSizeDest;
1808
1809         /* Determine if the hardware supports overlay surfaces */
1810         bHasOverlay = (ddcaps.dwCaps & DDCAPS_OVERLAY) ? 1 : 0;
1811         /* Determine if the hardware supports overlay surfaces */
1812         bHasOverlayFourCC = (ddcaps.dwCaps & DDCAPS_OVERLAYFOURCC) ? 1 : 0;
1813         /* Determine if the hardware supports overlay deinterlacing */
1814         bCanDeinterlace = (ddcaps.dwCaps & DDCAPS2_CANFLIPODDEVEN) ? 1 : 0;
1815         /* Determine if the hardware supports colorkeying */
1816         bHasColorKey = (ddcaps.dwCaps & DDCAPS_COLORKEY) ? 1 : 0;
1817         /* Determine if the hardware supports scaling of the overlay surface */
1818         bCanStretch = (ddcaps.dwCaps & DDCAPS_OVERLAYSTRETCH) ? 1 : 0;
1819         /* Determine if the hardware supports color conversion during a blit */
1820         bCanBltFourcc = (ddcaps.dwCaps & DDCAPS_BLTFOURCC) ? 1 : 0;
1821         /* Determine overlay source boundary alignment */
1822         bAlignBoundarySrc = (ddcaps.dwCaps & DDCAPS_ALIGNBOUNDARYSRC) ? 1 : 0;
1823         /* Determine overlay destination boundary alignment */
1824         bAlignBoundaryDest = (ddcaps.dwCaps & DDCAPS_ALIGNBOUNDARYDEST) ? 1:0;
1825         /* Determine overlay destination size alignment */
1826         bAlignSizeSrc = (ddcaps.dwCaps & DDCAPS_ALIGNSIZESRC) ? 1 : 0;
1827         /* Determine overlay destination size alignment */
1828         bAlignSizeDest = (ddcaps.dwCaps & DDCAPS_ALIGNSIZEDEST) ? 1 : 0;
1829
1830         msg_Dbg( p_vout, "DirectDraw Capabilities: overlay=%i yuvoverlay=%i "
1831                          "can_deinterlace_overlay=%i colorkey=%i stretch=%i "
1832                          "bltfourcc=%i",
1833                          bHasOverlay, bHasOverlayFourCC, bCanDeinterlace,
1834                          bHasColorKey, bCanStretch, bCanBltFourcc );
1835
1836         if( bAlignBoundarySrc || bAlignBoundaryDest ||
1837             bAlignSizeSrc || bAlignSizeDest )
1838         {
1839             if( bAlignBoundarySrc ) p_vout->p_sys->i_align_src_boundary =
1840                 ddcaps.dwAlignBoundarySrc;
1841             if( bAlignBoundaryDest ) p_vout->p_sys->i_align_dest_boundary =
1842                 ddcaps.dwAlignBoundaryDest;
1843             if( bAlignSizeDest ) p_vout->p_sys->i_align_src_size =
1844                 ddcaps.dwAlignSizeSrc;
1845             if( bAlignSizeDest ) p_vout->p_sys->i_align_dest_size =
1846                 ddcaps.dwAlignSizeDest;
1847
1848             msg_Dbg( p_vout, "align_boundary_src=%i,%i "
1849                      "align_boundary_dest=%i,%i "
1850                      "align_size_src=%i,%i align_size_dest=%i,%i",
1851                      bAlignBoundarySrc, p_vout->p_sys->i_align_src_boundary,
1852                      bAlignBoundaryDest, p_vout->p_sys->i_align_dest_boundary,
1853                      bAlignSizeSrc, p_vout->p_sys->i_align_src_size,
1854                      bAlignSizeDest, p_vout->p_sys->i_align_dest_size );
1855         }
1856
1857         /* Don't ask for troubles */
1858         if( !bCanBltFourcc ) p_vout->p_sys->b_hw_yuv = FALSE;
1859     }
1860 }
1861
1862 /*****************************************************************************
1863  * DirectXLockSurface: Lock surface and get picture data pointer
1864  *****************************************************************************
1865  * This function locks a surface and get the surface descriptor which amongst
1866  * other things has the pointer to the picture data.
1867  *****************************************************************************/
1868 static int DirectXLockSurface( vout_thread_t *p_vout, picture_t *p_pic )
1869 {
1870     HRESULT dxresult;
1871
1872     /* Lock the surface to get a valid pointer to the picture buffer */
1873     memset( &p_pic->p_sys->ddsd, 0, sizeof( DDSURFACEDESC ));
1874     p_pic->p_sys->ddsd.dwSize = sizeof(DDSURFACEDESC);
1875     dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface,
1876                                          NULL, &p_pic->p_sys->ddsd,
1877                                          DDLOCK_NOSYSLOCK | DDLOCK_WAIT,
1878                                          NULL );
1879     if( dxresult != DD_OK )
1880     {
1881         if( dxresult == DDERR_INVALIDPARAMS )
1882         {
1883             /* DirectX 3 doesn't support the DDLOCK_NOSYSLOCK flag, resulting
1884              * in an invalid params error */
1885             dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface, NULL,
1886                                              &p_pic->p_sys->ddsd,
1887                                              DDLOCK_WAIT, NULL);
1888         }
1889         if( dxresult == DDERR_SURFACELOST )
1890         {
1891             /* Your surface can be lost so be sure
1892              * to check this and restore it if needed */
1893
1894             /* When using overlays with back-buffers, we need to restore
1895              * the front buffer so the back-buffers get restored as well. */
1896             if( p_vout->p_sys->b_using_overlay  )
1897                 IDirectDrawSurface2_Restore( p_pic->p_sys->p_front_surface );
1898             else
1899                 IDirectDrawSurface2_Restore( p_pic->p_sys->p_surface );
1900
1901             dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface, NULL,
1902                                                  &p_pic->p_sys->ddsd,
1903                                                  DDLOCK_WAIT, NULL);
1904 #if 0
1905             if( dxresult == DDERR_SURFACELOST )
1906                 msg_Dbg( p_vout, "DirectXLockSurface: DDERR_SURFACELOST" );
1907 #endif
1908         }
1909         if( dxresult != DD_OK )
1910         {
1911             return VLC_EGENERIC;
1912         }
1913     }
1914
1915     /* Now we have a pointer to the surface memory, we can update our picture
1916      * structure. */
1917     if( UpdatePictureStruct( p_vout, p_pic, p_vout->output.i_chroma )
1918         != VLC_SUCCESS )
1919     {
1920         DirectXUnlockSurface( p_vout, p_pic );
1921         return VLC_EGENERIC;
1922     }
1923     else
1924         return VLC_SUCCESS;
1925 }
1926
1927 /*****************************************************************************
1928  * DirectXUnlockSurface: Unlock a surface locked by DirectXLockSurface().
1929  *****************************************************************************/
1930 static int DirectXUnlockSurface( vout_thread_t *p_vout, picture_t *p_pic )
1931 {
1932     /* Unlock the Surface */
1933     if( IDirectDrawSurface2_Unlock( p_pic->p_sys->p_surface, NULL ) == DD_OK )
1934         return VLC_SUCCESS;
1935     else
1936         return VLC_EGENERIC;
1937 }
1938
1939 /*****************************************************************************
1940  * DirectXFindColorkey: Finds out the 32bits RGB pixel value of the colorkey
1941  *****************************************************************************/
1942 static DWORD DirectXFindColorkey( vout_thread_t *p_vout, uint32_t *pi_color )
1943 {
1944     DDSURFACEDESC ddsd;
1945     HRESULT dxresult;
1946     COLORREF i_rgb = 0;
1947     uint32_t i_pixel_backup;
1948     HDC hdc;
1949
1950     ddsd.dwSize = sizeof(ddsd);
1951     dxresult = IDirectDrawSurface2_Lock( p_vout->p_sys->p_display, NULL,
1952                                          &ddsd, DDLOCK_WAIT, NULL );
1953     if( dxresult != DD_OK ) return 0;
1954
1955     i_pixel_backup = *(uint32_t *)ddsd.lpSurface;
1956
1957     switch( ddsd.ddpfPixelFormat.dwRGBBitCount )
1958     {
1959     case 4:
1960         *(uint8_t *)ddsd.lpSurface = *pi_color | (*pi_color << 4);
1961         break;
1962     case 8:
1963         *(uint8_t *)ddsd.lpSurface = *pi_color;
1964         break;
1965     case 15:
1966     case 16:
1967         *(uint16_t *)ddsd.lpSurface = *pi_color;
1968         break;
1969     case 24:
1970         /* Seems to be problematic so we'll just put black as the colorkey */
1971         *pi_color = 0;
1972     default:
1973         *(uint32_t *)ddsd.lpSurface = *pi_color;
1974         break;
1975     }
1976
1977     IDirectDrawSurface2_Unlock( p_vout->p_sys->p_display, NULL );
1978
1979     if( IDirectDrawSurface2_GetDC( p_vout->p_sys->p_display, &hdc ) == DD_OK )
1980     {
1981         i_rgb = GetPixel( hdc, 0, 0 );
1982         IDirectDrawSurface2_ReleaseDC( p_vout->p_sys->p_display, hdc );
1983     }
1984
1985     ddsd.dwSize = sizeof(ddsd);
1986     dxresult = IDirectDrawSurface2_Lock( p_vout->p_sys->p_display, NULL,
1987                                          &ddsd, DDLOCK_WAIT, NULL );
1988     if( dxresult != DD_OK ) return i_rgb;
1989
1990     *(uint32_t *)ddsd.lpSurface = i_pixel_backup;
1991
1992     IDirectDrawSurface2_Unlock( p_vout->p_sys->p_display, NULL );
1993
1994     return i_rgb;
1995 }
1996
1997 /*****************************************************************************
1998  * A few toolbox functions
1999  *****************************************************************************/
2000 void SwitchWallpaperMode( vout_thread_t *p_vout, vlc_bool_t b_on )
2001 {
2002     HWND hwnd;
2003
2004     if( p_vout->p_sys->b_wallpaper == b_on ) return; /* Nothing to do */
2005
2006     hwnd = FindWindow( _T("Progman"), NULL );
2007     if( hwnd ) hwnd = FindWindowEx( hwnd, NULL, _T("SHELLDLL_DefView"), NULL );
2008     if( hwnd ) hwnd = FindWindowEx( hwnd, NULL, _T("SysListView32"), NULL );
2009     if( !hwnd )
2010     {
2011         msg_Warn( p_vout, "couldn't find \"SysListView32\" window, "
2012                   "wallpaper mode not supported" );
2013         return;
2014     }
2015
2016     p_vout->p_sys->b_wallpaper = b_on;
2017
2018     msg_Dbg( p_vout, "wallpaper mode %s", b_on ? "enabled" : "disabled" );
2019
2020     if( p_vout->p_sys->b_wallpaper )
2021     {
2022         p_vout->p_sys->color_bkg = ListView_GetBkColor( hwnd );
2023         p_vout->p_sys->color_bkgtxt = ListView_GetTextBkColor( hwnd );
2024
2025         ListView_SetBkColor( hwnd, p_vout->p_sys->i_rgb_colorkey );
2026         ListView_SetTextBkColor( hwnd, p_vout->p_sys->i_rgb_colorkey );
2027     }
2028     else if( hwnd )
2029     {
2030         ListView_SetBkColor( hwnd, p_vout->p_sys->color_bkg );
2031         ListView_SetTextBkColor( hwnd, p_vout->p_sys->color_bkgtxt );
2032     }
2033
2034     /* Update desktop */
2035     InvalidateRect( hwnd, NULL, TRUE );
2036     UpdateWindow( hwnd );
2037 }
2038
2039 /*****************************************************************************
2040  * config variable callback
2041  *****************************************************************************/
2042 BOOL WINAPI DirectXEnumCallback2( GUID* p_guid, LPTSTR psz_desc,
2043                                   LPTSTR psz_drivername, VOID* p_context,
2044                                   HMONITOR hmon )
2045 {
2046     module_config_t *p_item = (module_config_t *)p_context;
2047
2048     p_item->ppsz_list =
2049         (char **)realloc( p_item->ppsz_list,
2050                           (p_item->i_list+2) * sizeof(char *) );
2051     p_item->ppsz_list_text =
2052         (char **)realloc( p_item->ppsz_list_text,
2053                           (p_item->i_list+2) * sizeof(char *) );
2054
2055     p_item->ppsz_list[p_item->i_list] = strdup( psz_drivername );
2056     p_item->ppsz_list_text[p_item->i_list] = NULL;
2057     p_item->i_list++;
2058     p_item->ppsz_list[p_item->i_list] = NULL;
2059     p_item->ppsz_list_text[p_item->i_list] = NULL;
2060
2061     return TRUE; /* Keep enumerating */
2062 }
2063
2064 static int FindDevicesCallback( vlc_object_t *p_this, char const *psz_name,
2065                                vlc_value_t newval, vlc_value_t oldval, void *d)
2066 {
2067     HRESULT (WINAPI *OurDirectDrawEnumerateEx)( LPDDENUMCALLBACKEXA, LPVOID,
2068                                                 DWORD );
2069     HINSTANCE hddraw_dll;
2070
2071     module_config_t *p_item;
2072     int i;
2073
2074     p_item = config_FindConfig( p_this, psz_name );
2075     if( !p_item ) return VLC_SUCCESS;
2076
2077     /* Clear-up the current list */
2078     if( p_item->i_list )
2079     {
2080         /* Keep the first entry */
2081         for( i = 1; i < p_item->i_list; i++ )
2082         {
2083             free( p_item->ppsz_list[i] );
2084             free( p_item->ppsz_list_text[i] );
2085         }
2086         /* TODO: Remove when no more needed */
2087         p_item->ppsz_list[i] = NULL;
2088         p_item->ppsz_list_text[i] = NULL;
2089     }
2090     p_item->i_list = 1;
2091
2092     /* Load direct draw DLL */
2093     hddraw_dll = LoadLibrary(_T("DDRAW.DLL"));
2094     if( hddraw_dll == NULL ) return VLC_SUCCESS;
2095
2096     OurDirectDrawEnumerateEx =
2097 #ifndef UNICODE
2098       (void *)GetProcAddress( hddraw_dll, "DirectDrawEnumerateExA" );
2099 #else
2100       (void *)GetProcAddress( hddraw_dll, _T("DirectDrawEnumerateExW") );
2101 #endif
2102
2103     if( OurDirectDrawEnumerateEx )
2104     {
2105         /* Enumerate displays */
2106         OurDirectDrawEnumerateEx( DirectXEnumCallback2, p_item,
2107                                   DDENUM_ATTACHEDSECONDARYDEVICES );
2108     }
2109
2110     FreeLibrary( hddraw_dll );
2111
2112     /* Signal change to the interface */
2113     p_item->b_dirty = VLC_TRUE;
2114
2115     return VLC_SUCCESS;
2116 }
2117
2118 static int WallpaperCallback( vlc_object_t *p_this, char const *psz_cmd,
2119                               vlc_value_t oldval, vlc_value_t newval,
2120                               void *p_data )
2121 {
2122     vout_thread_t *p_vout = (vout_thread_t *)p_this;
2123
2124     if( (newval.b_bool && !p_vout->p_sys->b_wallpaper) ||
2125         (!newval.b_bool && p_vout->p_sys->b_wallpaper) )
2126     {
2127         playlist_t *p_playlist;
2128
2129         p_playlist =
2130             (playlist_t *)vlc_object_find( p_this, VLC_OBJECT_PLAYLIST,
2131                                            FIND_PARENT );
2132         if( p_playlist )
2133         {
2134             /* Modify playlist as well because the vout might have to be
2135              * restarted */
2136             var_Create( p_playlist, "directx-wallpaper", VLC_VAR_BOOL );
2137             var_Set( p_playlist, "directx-wallpaper", newval );
2138
2139             vlc_object_release( p_playlist );
2140         }
2141
2142         p_vout->p_sys->i_changes |= DX_WALLPAPER_CHANGE;
2143     }
2144
2145     return VLC_SUCCESS;
2146 }
2147
2148 /*****************************************************************************
2149  * SetPalette: sets an 8 bpp palette
2150  *****************************************************************************/
2151 static void SetPalette( vout_thread_t *p_vout,
2152                         uint16_t *red, uint16_t *green, uint16_t *blue )
2153 {
2154     msg_Err( p_vout, "FIXME: SetPalette unimplemented" );
2155 }