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

   1 /*****************************************************************************
   2  * vout.c: Windows DirectX video output display method
   3  *****************************************************************************
   4  * Copyright (C) 2001-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Gildas Bazin <gbazin@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble:
  26  *
  27  * This plugin will use YUV overlay if supported, using overlay will result in
  28  * the best video quality (hardware interpolation when rescaling the picture)
  29  * and the fastest display as it requires less processing.
  30  *
  31  * If YUV overlay is not supported this plugin will use RGB offscreen video
  32  * surfaces that will be blitted onto the primary surface (display) to
  33  * effectively display the pictures. This fallback method also enables us to
  34  * display video in window mode.
  35  *
  36  *****************************************************************************/
  37 #include <errno.h>                                                 /* ENOMEM */
  38
  39 #ifdef HAVE_CONFIG_H
  40 # include "config.h"
  41 #endif
  42
  43 #include <vlc_common.h>
  44 #include <vlc_plugin.h>
  45 #include <vlc_interface.h>
  46 #include <vlc_playlist.h>
  47 #include <vlc_vout.h>
  48
  49 #include <windows.h>
  50 #include <ddraw.h>
  51 #include <commctrl.h>
  52
  53 #ifndef UNDER_CE
  54 #   include <multimon.h>
  55 #endif
  56 #undef GetSystemMetrics
  57
  58 #ifndef MONITOR_DEFAULTTONEAREST
  59 #   define MONITOR_DEFAULTTONEAREST 2
  60 #endif
  61
  62 #include "vout.h"
  63
  64 /*****************************************************************************
  65  * picture_sys_t: direct buffer method descriptor
  66  *****************************************************************************
  67  * This structure is part of the picture descriptor, it describes the
  68  * DirectX specific properties of a direct buffer.
  69  *****************************************************************************/
  70 struct picture_sys_t
  71 {
  72     LPDIRECTDRAWSURFACE2 p_surface;
  73     LPDIRECTDRAWSURFACE2 p_front_surface;
  74     DDSURFACEDESC        ddsd;
  75 };
  76
  77 /*****************************************************************************
  78  * DirectDraw GUIDs.
  79  * Defining them here allows us to get rid of the dxguid library during
  80  * the linking stage.
  81  *****************************************************************************/
  82 #include <initguid.h>
  83 #undef GUID_EXT
  84 #define GUID_EXT
  85 DEFINE_GUID( IID_IDirectDraw2, 0xB3A6F3E0,0x2B43,0x11CF,0xA2,0xDE,0x00,0xAA,0x00,0xB9,0x33,0x56 );
  86 DEFINE_GUID( IID_IDirectDrawSurface2, 0x57805885,0x6eec,0x11cf,0x94,0x41,0xa8,0x23,0x03,0xc1,0x0e,0x27 );
  87
  88 /*****************************************************************************
  89  * Local prototypes.
  90  *****************************************************************************/
  91 static int  OpenVideo  ( vlc_object_t * );
  92 static void CloseVideo ( vlc_object_t * );
  93
  94 static int  Init      ( vout_thread_t * );
  95 static void End       ( vout_thread_t * );
  96 static int  Manage    ( vout_thread_t * );
  97 static void Display   ( vout_thread_t *, picture_t * );
  98 static void FirstDisplay( vout_thread_t *, picture_t * );
  99 static void SetPalette( vout_thread_t *, uint16_t *, uint16_t *, uint16_t * );
 100
 101 static int  NewPictureVec  ( vout_thread_t *, picture_t *, int );
 102 static void FreePictureVec ( vout_thread_t *, picture_t *, int );
 103 static int  UpdatePictureStruct( vout_thread_t *, picture_t *, int );
 104
 105 static int  DirectXInitDDraw      ( vout_thread_t *p_vout );
 106 static void DirectXCloseDDraw     ( vout_thread_t *p_vout );
 107 static int  DirectXCreateDisplay  ( vout_thread_t *p_vout );
 108 static void DirectXCloseDisplay   ( vout_thread_t *p_vout );
 109 static int  DirectXCreateSurface  ( vout_thread_t *p_vout,
 110                                     LPDIRECTDRAWSURFACE2 *, int, int, int );
 111 static void DirectXCloseSurface   ( vout_thread_t *p_vout,
 112                                     LPDIRECTDRAWSURFACE2 );
 113 static int  DirectXCreateClipper  ( vout_thread_t *p_vout );
 114 static void DirectXGetDDrawCaps   ( vout_thread_t *p_vout );
 115 static int  DirectXLockSurface    ( vout_thread_t *p_vout, picture_t *p_pic );
 116 static int  DirectXUnlockSurface  ( vout_thread_t *p_vout, picture_t *p_pic );
 117
 118 static DWORD DirectXFindColorkey( vout_thread_t *p_vout, uint32_t *i_color );
 119
 120 void SwitchWallpaperMode( vout_thread_t *, bool );
 121
 122 /* Object variables callbacks */
 123 static int FindDevicesCallback( vlc_object_t *, char const *,
 124                                 vlc_value_t, vlc_value_t, void * );
 125 static int WallpaperCallback( vlc_object_t *, char const *,
 126                               vlc_value_t, vlc_value_t, void * );
 127
 128 /*****************************************************************************
 129  * Module descriptor
 130  *****************************************************************************/
 131 #define HW_YUV_TEXT N_("Use hardware YUV->RGB conversions")
 132 #define HW_YUV_LONGTEXT N_( \
 133     "Try to use hardware acceleration for YUV->RGB conversions. " \
 134     "This option doesn't have any effect when using overlays." )
 135
 136 #define SYSMEM_TEXT N_("Use video buffers in system memory")
 137 #define SYSMEM_LONGTEXT N_( \
 138     "Create video buffers in system memory instead of video memory. This " \
 139     "isn't recommended as usually using video memory allows to benefit from " \
 140     "more hardware acceleration (like rescaling or YUV->RGB conversions). " \
 141     "This option doesn't have any effect when using overlays." )
 142
 143 #define TRIPLEBUF_TEXT N_("Use triple buffering for overlays")
 144 #define TRIPLEBUF_LONGTEXT N_( \
 145     "Try to use triple buffering when using YUV overlays. That results in " \
 146     "much better video quality (no flickering)." )
 147
 148 #define DEVICE_TEXT N_("Name of desired display device")
 149 #define DEVICE_LONGTEXT N_("In a multiple monitor configuration, you can " \
 150     "specify the Windows device name of the display that you want the video " \
 151     "window to open on. For example, \"\\\\.\\DISPLAY1\" or " \
 152     "\"\\\\.\\DISPLAY2\"." )
 153
 154 #define WALLPAPER_TEXT N_("Enable wallpaper mode ")
 155 #define WALLPAPER_LONGTEXT N_( \
 156     "The wallpaper mode allows you to display the video as the desktop " \
 157     "background. Note that this feature only works in overlay mode and " \
 158     "the desktop must not already have a wallpaper." )
 159
 160 static const char *const ppsz_dev[] = { "" };
 161 static const char *const ppsz_dev_text[] = { N_("Default") };
 162
 163 vlc_module_begin ()
 164     set_shortname( "DirectX" )
 165     set_category( CAT_VIDEO )
 166     set_subcategory( SUBCAT_VIDEO_VOUT )
 167     add_bool( "directx-hw-yuv", 1, NULL, HW_YUV_TEXT, HW_YUV_LONGTEXT,
 168               true )
 169     add_bool( "directx-use-sysmem", 0, NULL, SYSMEM_TEXT, SYSMEM_LONGTEXT,
 170               true )
 171     add_bool( "directx-3buffering", 1, NULL, TRIPLEBUF_TEXT,
 172               TRIPLEBUF_LONGTEXT, true )
 173
 174     add_string( "directx-device", "", NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
 175                 true )
 176         change_string_list( ppsz_dev, ppsz_dev_text, FindDevicesCallback );
 177         change_action_add( FindDevicesCallback, N_("Refresh list") )
 178
 179     add_bool( "directx-wallpaper", 0, NULL, WALLPAPER_TEXT, WALLPAPER_LONGTEXT,
 180               true )
 181
 182     set_description( N_("DirectX video output") )
 183     set_capability( "video output", 100 )
 184     add_shortcut( "directx" )
 185     set_callbacks( OpenVideo, CloseVideo )
 186
 187     /* FIXME: Hack to avoid unregistering our window class */
 188     linked_with_a_crap_library_which_uses_atexit ()
 189 vlc_module_end ()
 190
 191 #if 0 /* FIXME */
 192     /* check if we registered a window class because we need to
 193      * unregister it */
 194     WNDCLASS wndclass;
 195     if( GetClassInfo( GetModuleHandle(NULL), "VLC DirectX", &wndclass ) )
 196         UnregisterClass( "VLC DirectX", GetModuleHandle(NULL) );
 197 #endif
 198
 199 /*****************************************************************************
 200  * OpenVideo: allocate DirectX video thread output method
 201  *****************************************************************************
 202  * This function allocates and initialize the DirectX vout method.
 203  *****************************************************************************/
 204 static int OpenVideo( vlc_object_t *p_this )
 205 {
 206     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 207     vlc_value_t val;
 208     HMODULE huser32;
 209
 210     /* Allocate structure */
 211     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 212     if( p_vout->p_sys == NULL )
 213         return VLC_ENOMEM;
 214     memset( p_vout->p_sys, 0, sizeof( vout_sys_t ) );
 215
 216     /* Initialisations */
 217     p_vout->pf_init = Init;
 218     p_vout->pf_end = End;
 219     p_vout->pf_manage = Manage;
 220     p_vout->pf_render = NULL;
 221     p_vout->pf_display = FirstDisplay;
 222
 223     p_vout->p_sys->p_ddobject = NULL;
 224     p_vout->p_sys->p_display = NULL;
 225     p_vout->p_sys->p_current_surface = NULL;
 226     p_vout->p_sys->p_clipper = NULL;
 227     p_vout->p_sys->hwnd = p_vout->p_sys->hvideownd = NULL;
 228     p_vout->p_sys->hparent = p_vout->p_sys->hfswnd = NULL;
 229     p_vout->p_sys->i_changes = 0;
 230     p_vout->p_sys->b_wallpaper = 0;
 231     vlc_mutex_init( &p_vout->p_sys->lock );
 232     SetRectEmpty( &p_vout->p_sys->rect_display );
 233     SetRectEmpty( &p_vout->p_sys->rect_parent );
 234
 235     /* Multimonitor stuff */
 236     p_vout->p_sys->hmonitor = NULL;
 237     p_vout->p_sys->p_display_driver = NULL;
 238     p_vout->p_sys->MonitorFromWindow = NULL;
 239     p_vout->p_sys->GetMonitorInfo = NULL;
 240     if( (huser32 = GetModuleHandle( _T("USER32") ) ) )
 241     {
 242         p_vout->p_sys->MonitorFromWindow = (HMONITOR (WINAPI *)( HWND, DWORD ))
 243             GetProcAddress( huser32, _T("MonitorFromWindow") );
 244         p_vout->p_sys->GetMonitorInfo =
 245 #ifndef UNICODE
 246             GetProcAddress( huser32, "GetMonitorInfoA" );
 247 #else
 248             GetProcAddress( huser32, _T("GetMonitorInfoW") );
 249 #endif
 250     }
 251
 252     var_Create( p_vout, "overlay", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 253     var_Create( p_vout, "directx-use-sysmem", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 254     var_Create( p_vout, "directx-hw-yuv", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 255     var_Create( p_vout, "directx-3buffering", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 256     var_Create( p_vout, "directx-device", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 257     var_Create( p_vout, "video-title", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 258     var_Create( p_vout, "disable-screensaver", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 259
 260     p_vout->p_sys->b_cursor_hidden = 0;
 261     p_vout->p_sys->i_lastmoved = mdate();
 262     p_vout->p_sys->i_mouse_hide_timeout =
 263         var_GetInteger(p_vout, "mouse-hide-timeout") * 1000;
 264
 265     /* Set main window's size */
 266     p_vout->p_sys->i_window_width = p_vout->i_window_width;
 267     p_vout->p_sys->i_window_height = p_vout->i_window_height;
 268
 269     /* Create the Vout EventThread, this thread is created by us to isolate
 270      * the Win32 PeekMessage function calls. We want to do this because
 271      * Windows can stay blocked inside this call for a long time, and when
 272      * this happens it thus blocks vlc's video_output thread.
 273      * DirectXEventThread will take care of the creation of the video
 274      * window (because PeekMessage has to be called from the same thread which
 275      * created the window). */
 276     msg_Dbg( p_vout, "creating DirectXEventThread" );
 277     p_vout->p_sys->p_event =
 278         vlc_object_create( p_vout, sizeof(event_thread_t) );
 279     p_vout->p_sys->p_event->p_vout = p_vout;
 280     p_vout->p_sys->p_event->window_ready = CreateEvent( NULL, TRUE, FALSE, NULL );
 281     if( vlc_thread_create( p_vout->p_sys->p_event, "Vout Events Thread",
 282                            EventThread, 0 ) )
 283     {
 284         msg_Err( p_vout, "cannot create Vout EventThread" );
 285         CloseHandle( p_vout->p_sys->p_event->window_ready );
 286         vlc_object_release( p_vout->p_sys->p_event );
 287         p_vout->p_sys->p_event = NULL;
 288         goto error;
 289     }
 290     WaitForSingleObject( p_vout->p_sys->p_event->window_ready, INFINITE );
 291     CloseHandle( p_vout->p_sys->p_event->window_ready );
 292
 293     if( p_vout->p_sys->p_event->b_error )
 294     {
 295         msg_Err( p_vout, "Vout EventThread failed" );
 296         goto error;
 297     }
 298
 299     vlc_object_attach( p_vout->p_sys->p_event, p_vout );
 300
 301     msg_Dbg( p_vout, "Vout EventThread running" );
 302
 303     /* Initialise DirectDraw */
 304     if( DirectXInitDDraw( p_vout ) )
 305     {
 306         msg_Err( p_vout, "cannot initialize DirectX DirectDraw" );
 307         goto error;
 308     }
 309
 310     /* Create the directx display */
 311     if( DirectXCreateDisplay( p_vout ) )
 312     {
 313         msg_Err( p_vout, "cannot initialize DirectX DirectDraw" );
 314         goto error;
 315     }
 316
 317     /* Variable to indicate if the window should be on top of others */
 318     /* Trigger a callback right now */
 319     var_Get( p_vout, "video-on-top", &val );
 320     var_Set( p_vout, "video-on-top", val );
 321
 322     /* Variable to indicate if the window should be on top of others */
 323     /* Trigger a callback right now */
 324     var_Create( p_vout, "directx-wallpaper", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 325     val.psz_string = _("Wallpaper");
 326     var_Change( p_vout, "directx-wallpaper", VLC_VAR_SETTEXT, &val, NULL );
 327     var_AddCallback( p_vout, "directx-wallpaper", WallpaperCallback, NULL );
 328     var_Get( p_vout, "directx-wallpaper", &val );
 329     var_Set( p_vout, "directx-wallpaper", val );
 330
 331     /* disable screensaver by temporarily changing system settings */
 332     p_vout->p_sys->i_spi_lowpowertimeout = 0;
 333     p_vout->p_sys->i_spi_powerofftimeout = 0;
 334     p_vout->p_sys->i_spi_screensavetimeout = 0;
 335     var_Get( p_vout, "disable-screensaver", &val);
 336     if( val.b_bool ) {
 337         msg_Dbg(p_vout, "disabling screen saver");
 338         SystemParametersInfo(SPI_GETLOWPOWERTIMEOUT,
 339             0, &(p_vout->p_sys->i_spi_lowpowertimeout), 0);
 340         if( 0 != p_vout->p_sys->i_spi_lowpowertimeout ) {
 341             SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT, 0, NULL, 0);
 342         }
 343         SystemParametersInfo(SPI_GETPOWEROFFTIMEOUT, 0,
 344             &(p_vout->p_sys->i_spi_powerofftimeout), 0);
 345         if( 0 != p_vout->p_sys->i_spi_powerofftimeout ) {
 346             SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT, 0, NULL, 0);
 347         }
 348         SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0,
 349             &(p_vout->p_sys->i_spi_screensavetimeout), 0);
 350         if( 0 != p_vout->p_sys->i_spi_screensavetimeout ) {
 351             SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, 0, NULL, 0);
 352         }
 353     }
 354
 355     return VLC_SUCCESS;
 356
 357  error:
 358     CloseVideo( VLC_OBJECT(p_vout) );
 359     return VLC_EGENERIC;
 360 }
 361
 362 /*****************************************************************************
 363  * Init: initialize DirectX video thread output method
 364  *****************************************************************************
 365  * This function create the directx surfaces needed by the output thread.
 366  * It is called at the beginning of the thread.
 367  *****************************************************************************/
 368 static int Init( vout_thread_t *p_vout )
 369 {
 370     int i_chroma_backup;
 371     vlc_value_t val;
 372
 373     /* Get a few default parameters */
 374     var_Get( p_vout, "overlay", &val );
 375     p_vout->p_sys->b_using_overlay = val.b_bool;
 376     var_Get( p_vout, "directx-use-sysmem", &val );
 377     p_vout->p_sys->b_use_sysmem = val.b_bool;
 378     var_Get( p_vout, "directx-hw-yuv", &val );
 379     p_vout->p_sys->b_hw_yuv = val.b_bool;
 380     var_Get( p_vout, "directx-3buffering", &val );
 381     p_vout->p_sys->b_3buf_overlay = val.b_bool;
 382
 383     /* Initialise DirectDraw if not already done.
 384      * We do this here because on multi-monitor systems we may have to
 385      * re-create the directdraw surfaces. */
 386     if( !p_vout->p_sys->p_ddobject &&
 387         DirectXInitDDraw( p_vout ) != VLC_SUCCESS )
 388     {
 389         msg_Err( p_vout, "cannot initialize DirectDraw" );
 390         return VLC_EGENERIC;
 391     }
 392
 393     /* Create the directx display */
 394     if( !p_vout->p_sys->p_display &&
 395         DirectXCreateDisplay( p_vout ) != VLC_SUCCESS )
 396     {
 397         msg_Err( p_vout, "cannot initialize DirectDraw" );
 398         return VLC_EGENERIC;
 399     }
 400
 401     /* Initialize the output structure.
 402      * Since DirectDraw can do rescaling for us, stick to the default
 403      * coordinates and aspect. */
 404     p_vout->output.i_width  = p_vout->render.i_width;
 405     p_vout->output.i_height = p_vout->render.i_height;
 406     p_vout->output.i_aspect = p_vout->render.i_aspect;
 407     p_vout->fmt_out = p_vout->fmt_in;
 408     UpdateRects( p_vout, true );
 409
 410 #define MAX_DIRECTBUFFERS 1
 411     /* Right now we use only 1 directbuffer because we don't want the
 412      * video decoder to decode directly into direct buffers as they are
 413      * created into video memory and video memory is _really_ slow */
 414
 415     /* Choose the chroma we will try first. */
 416     switch( p_vout->render.i_chroma )
 417     {
 418         case VLC_FOURCC('Y','U','Y','2'):
 419         case VLC_FOURCC('Y','U','N','V'):
 420             p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
 421             break;
 422         case VLC_FOURCC('U','Y','V','Y'):
 423         case VLC_FOURCC('U','Y','N','V'):
 424         case VLC_FOURCC('Y','4','2','2'):
 425             p_vout->output.i_chroma = VLC_FOURCC('U','Y','V','Y');
 426             break;
 427         case VLC_FOURCC('Y','V','Y','U'):
 428             p_vout->output.i_chroma = VLC_FOURCC('Y','V','Y','U');
 429             break;
 430         default:
 431             p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
 432             break;
 433     }
 434
 435     NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
 436
 437     i_chroma_backup = p_vout->output.i_chroma;
 438
 439     if( !I_OUTPUTPICTURES )
 440     {
 441         /* hmmm, it didn't work! Let's try commonly supported chromas */
 442         if( p_vout->output.i_chroma != VLC_FOURCC('I','4','2','0') )
 443         {
 444             p_vout->output.i_chroma = VLC_FOURCC('Y','V','1','2');
 445             NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
 446         }
 447         if( !I_OUTPUTPICTURES )
 448         {
 449             /* hmmm, it still didn't work! Let's try another one */
 450             p_vout->output.i_chroma = VLC_FOURCC('Y','U','Y','2');
 451             NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
 452         }
 453     }
 454
 455     if( !I_OUTPUTPICTURES )
 456     {
 457         /* If it still didn't work then don't try to use an overlay */
 458         p_vout->output.i_chroma = i_chroma_backup;
 459         p_vout->p_sys->b_using_overlay = 0;
 460         NewPictureVec( p_vout, p_vout->p_picture, MAX_DIRECTBUFFERS );
 461     }
 462
 463     /* Change the window title bar text */
 464     PostMessage( p_vout->p_sys->hwnd, WM_VLC_CHANGE_TEXT, 0, 0 );
 465
 466     p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
 467     return VLC_SUCCESS;
 468 }
 469
 470 /*****************************************************************************
 471  * End: terminate Sys video thread output method
 472  *****************************************************************************
 473  * Terminate an output method created by Create.
 474  * It is called at the end of the thread.
 475  *****************************************************************************/
 476 static void End( vout_thread_t *p_vout )
 477 {
 478     FreePictureVec( p_vout, p_vout->p_picture, I_OUTPUTPICTURES );
 479
 480     DirectXCloseDisplay( p_vout );
 481     DirectXCloseDDraw( p_vout );
 482
 483     return;
 484 }
 485
 486 /*****************************************************************************
 487  * CloseVideo: destroy Sys video thread output method
 488  *****************************************************************************
 489  * Terminate an output method created by Create
 490  *****************************************************************************/
 491 static void CloseVideo( vlc_object_t *p_this )
 492 {
 493     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 494
 495     if( p_vout->b_fullscreen )
 496     {
 497         msg_Dbg( p_vout, "Quitting fullscreen" );
 498         Win32ToggleFullscreen( p_vout );
 499         /* Force fullscreen in the core for the next video */
 500         var_SetBool( p_vout, "fullscreen", true );
 501     }
 502
 503     if( p_vout->p_sys->p_event )
 504     {
 505         vlc_object_detach( p_vout->p_sys->p_event );
 506
 507         /* Kill Vout EventThread */
 508         vlc_object_kill( p_vout->p_sys->p_event );
 509
 510         /* we need to be sure Vout EventThread won't stay stuck in
 511          * GetMessage, so we send a fake message */
 512         if( p_vout->p_sys->hwnd )
 513         {
 514             PostMessage( p_vout->p_sys->hwnd, WM_NULL, 0, 0);
 515         }
 516
 517         vlc_thread_join( p_vout->p_sys->p_event );
 518         vlc_object_release( p_vout->p_sys->p_event );
 519     }
 520
 521     vlc_mutex_destroy( &p_vout->p_sys->lock );
 522
 523     /* Make sure the wallpaper is restored */
 524     SwitchWallpaperMode( p_vout, false );
 525
 526     /* restore screensaver system settings */
 527     if( 0 != p_vout->p_sys->i_spi_lowpowertimeout ) {
 528         SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT,
 529             p_vout->p_sys->i_spi_lowpowertimeout, NULL, 0);
 530     }
 531     if( 0 != p_vout->p_sys->i_spi_powerofftimeout ) {
 532         SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT,
 533             p_vout->p_sys->i_spi_powerofftimeout, NULL, 0);
 534     }
 535     if( 0 != p_vout->p_sys->i_spi_screensavetimeout ) {
 536         SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT,
 537             p_vout->p_sys->i_spi_screensavetimeout, NULL, 0);
 538     }
 539
 540     free( p_vout->p_sys );
 541     p_vout->p_sys = NULL;
 542 }
 543
 544 /*****************************************************************************
 545  * Manage: handle Sys events
 546  *****************************************************************************
 547  * This function should be called regularly by the video output thread.
 548  * It returns a non null value if an error occurred.
 549  *****************************************************************************/
 550 static int Manage( vout_thread_t *p_vout )
 551 {
 552     /* If we do not control our window, we check for geometry changes
 553      * ourselves because the parent might not send us its events. */
 554     vlc_mutex_lock( &p_vout->p_sys->lock );
 555     if( p_vout->p_sys->hparent && !p_vout->b_fullscreen )
 556     {
 557         RECT rect_parent;
 558         POINT point;
 559
 560         vlc_mutex_unlock( &p_vout->p_sys->lock );
 561
 562         GetClientRect( p_vout->p_sys->hparent, &rect_parent );
 563         point.x = point.y = 0;
 564         ClientToScreen( p_vout->p_sys->hparent, &point );
 565         OffsetRect( &rect_parent, point.x, point.y );
 566
 567         if( !EqualRect( &rect_parent, &p_vout->p_sys->rect_parent ) )
 568         {
 569             p_vout->p_sys->rect_parent = rect_parent;
 570
 571             /* This one is to force the update even if only
 572              * the position has changed */
 573             SetWindowPos( p_vout->p_sys->hwnd, 0, 1, 1,
 574                           rect_parent.right - rect_parent.left,
 575                           rect_parent.bottom - rect_parent.top, 0 );
 576
 577             SetWindowPos( p_vout->p_sys->hwnd, 0, 0, 0,
 578                           rect_parent.right - rect_parent.left,
 579                           rect_parent.bottom - rect_parent.top, 0 );
 580         }
 581     }
 582     else
 583     {
 584         vlc_mutex_unlock( &p_vout->p_sys->lock );
 585     }
 586
 587     /*
 588      * Position Change
 589      */
 590     if( p_vout->p_sys->i_changes & DX_POSITION_CHANGE )
 591     {
 592         p_vout->p_sys->i_changes &= ~DX_POSITION_CHANGE;
 593
 594         /* Check if we are still on the same monitor */
 595         if( p_vout->p_sys->MonitorFromWindow &&
 596             p_vout->p_sys->hmonitor !=
 597                 p_vout->p_sys->MonitorFromWindow( p_vout->p_sys->hwnd,
 598                                                   MONITOR_DEFAULTTONEAREST ) )
 599         {
 600             /* This will force the vout core to recreate the picture buffers */
 601             p_vout->i_changes |= VOUT_PICTURE_BUFFERS_CHANGE;
 602         }
 603     }
 604
 605     /* Check for cropping / aspect changes */
 606     if( p_vout->i_changes & VOUT_CROP_CHANGE ||
 607         p_vout->i_changes & VOUT_ASPECT_CHANGE )
 608     {
 609         p_vout->i_changes &= ~VOUT_CROP_CHANGE;
 610         p_vout->i_changes &= ~VOUT_ASPECT_CHANGE;
 611
 612         p_vout->fmt_out.i_x_offset = p_vout->fmt_in.i_x_offset;
 613         p_vout->fmt_out.i_y_offset = p_vout->fmt_in.i_y_offset;
 614         p_vout->fmt_out.i_visible_width = p_vout->fmt_in.i_visible_width;
 615         p_vout->fmt_out.i_visible_height = p_vout->fmt_in.i_visible_height;
 616         p_vout->fmt_out.i_aspect = p_vout->fmt_in.i_aspect;
 617         p_vout->fmt_out.i_sar_num = p_vout->fmt_in.i_sar_num;
 618         p_vout->fmt_out.i_sar_den = p_vout->fmt_in.i_sar_den;
 619         p_vout->output.i_aspect = p_vout->fmt_in.i_aspect;
 620         UpdateRects( p_vout, true );
 621     }
 622
 623     /* We used to call the Win32 PeekMessage function here to read the window
 624      * messages. But since window can stay blocked into this function for a
 625      * long time (for example when you move your window on the screen), I
 626      * decided to isolate PeekMessage in another thread. */
 627
 628     if( p_vout->p_sys->i_changes & DX_WALLPAPER_CHANGE )
 629     {
 630         SwitchWallpaperMode( p_vout, !p_vout->p_sys->b_wallpaper );
 631         p_vout->p_sys->i_changes &= ~DX_WALLPAPER_CHANGE;
 632         DirectDrawUpdateOverlay( p_vout );
 633     }
 634
 635     /*
 636      * Fullscreen change
 637      */
 638     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE
 639         || p_vout->p_sys->i_changes & VOUT_FULLSCREEN_CHANGE )
 640     {
 641         Win32ToggleFullscreen( p_vout );
 642
 643         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 644         p_vout->p_sys->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 645     }
 646
 647     /*
 648      * Pointer change
 649      */
 650     if( p_vout->b_fullscreen && !p_vout->p_sys->b_cursor_hidden &&
 651         (mdate() - p_vout->p_sys->i_lastmoved) >
 652             p_vout->p_sys->i_mouse_hide_timeout )
 653     {
 654         POINT point;
 655         HWND hwnd;
 656
 657         /* Hide the cursor only if it is inside our window */
 658         GetCursorPos( &point );
 659         hwnd = WindowFromPoint(point);
 660         if( hwnd == p_vout->p_sys->hwnd || hwnd == p_vout->p_sys->hvideownd )
 661         {
 662             PostMessage( p_vout->p_sys->hwnd, WM_VLC_HIDE_MOUSE, 0, 0 );
 663         }
 664         else
 665         {
 666             p_vout->p_sys->i_lastmoved = mdate();
 667         }
 668     }
 669
 670     /*
 671      * "Always on top" status change
 672      */
 673     if( p_vout->p_sys->b_on_top_change )
 674     {
 675         vlc_value_t val;
 676         HMENU hMenu = GetSystemMenu( p_vout->p_sys->hwnd, FALSE );
 677
 678         var_Get( p_vout, "video-on-top", &val );
 679
 680         /* Set the window on top if necessary */
 681         if( val.b_bool && !( GetWindowLong( p_vout->p_sys->hwnd, GWL_EXSTYLE )
 682                            & WS_EX_TOPMOST ) )
 683         {
 684             CheckMenuItem( hMenu, IDM_TOGGLE_ON_TOP,
 685                            MF_BYCOMMAND | MFS_CHECKED );
 686             SetWindowPos( p_vout->p_sys->hwnd, HWND_TOPMOST, 0, 0, 0, 0,
 687                           SWP_NOSIZE | SWP_NOMOVE );
 688         }
 689         else
 690         /* The window shouldn't be on top */
 691         if( !val.b_bool && ( GetWindowLong( p_vout->p_sys->hwnd, GWL_EXSTYLE )
 692                            & WS_EX_TOPMOST ) )
 693         {
 694             CheckMenuItem( hMenu, IDM_TOGGLE_ON_TOP,
 695                            MF_BYCOMMAND | MFS_UNCHECKED );
 696             SetWindowPos( p_vout->p_sys->hwnd, HWND_NOTOPMOST, 0, 0, 0, 0,
 697                           SWP_NOSIZE | SWP_NOMOVE );
 698         }
 699
 700         p_vout->p_sys->b_on_top_change = false;
 701     }
 702
 703     /* Check if the event thread is still running */
 704     if( !vlc_object_alive (p_vout->p_sys->p_event) )
 705     {
 706         return VLC_EGENERIC; /* exit */
 707     }
 708
 709     return VLC_SUCCESS;
 710 }
 711
 712 /*****************************************************************************
 713  * Display: displays previously rendered output
 714  *****************************************************************************
 715  * This function sends the currently rendered image to the display, wait until
 716  * it is displayed and switch the two rendering buffers, preparing next frame.
 717  *****************************************************************************/
 718 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
 719 {
 720     HRESULT dxresult;
 721
 722     if( (p_vout->p_sys->p_display == NULL) )
 723     {
 724         msg_Warn( p_vout, "no display!" );
 725         return;
 726     }
 727
 728     /* Our surface can be lost so be sure to check this
 729      * and restore it if need be */
 730     if( IDirectDrawSurface2_IsLost( p_vout->p_sys->p_display )
 731         == DDERR_SURFACELOST )
 732     {
 733         if( IDirectDrawSurface2_Restore( p_vout->p_sys->p_display ) == DD_OK &&
 734             p_vout->p_sys->b_using_overlay )
 735             DirectDrawUpdateOverlay( p_vout );
 736     }
 737
 738     if( !p_vout->p_sys->b_using_overlay )
 739     {
 740         DDBLTFX  ddbltfx;
 741
 742         /* We ask for the "NOTEARING" option */
 743         memset( &ddbltfx, 0, sizeof(DDBLTFX) );
 744         ddbltfx.dwSize = sizeof(DDBLTFX);
 745         ddbltfx.dwDDFX = DDBLTFX_NOTEARING;
 746
 747         /* Blit video surface to display */
 748         dxresult = IDirectDrawSurface2_Blt( p_vout->p_sys->p_display,
 749                                             &p_vout->p_sys->rect_dest_clipped,
 750                                             p_pic->p_sys->p_surface,
 751                                             &p_vout->p_sys->rect_src_clipped,
 752                                             DDBLT_ASYNC, &ddbltfx );
 753         if( dxresult != DD_OK )
 754         {
 755             msg_Warn( p_vout, "could not blit surface (error %li)", dxresult );
 756             return;
 757         }
 758     }
 759     else /* using overlay */
 760     {
 761         /* Flip the overlay buffers if we are using back buffers */
 762         if( p_pic->p_sys->p_front_surface == p_pic->p_sys->p_surface )
 763         {
 764             return;
 765         }
 766
 767         dxresult = IDirectDrawSurface2_Flip( p_pic->p_sys->p_front_surface,
 768                                              NULL, DDFLIP_WAIT );
 769         if( dxresult != DD_OK )
 770         {
 771             msg_Warn( p_vout, "could not flip overlay (error %li)", dxresult );
 772         }
 773
 774         /* set currently displayed pic */
 775         p_vout->p_sys->p_current_surface = p_pic->p_sys->p_front_surface;
 776
 777         /* Lock surface to get all the required info */
 778         if( DirectXLockSurface( p_vout, p_pic ) )
 779         {
 780             /* AAARRGG */
 781             msg_Warn( p_vout, "cannot lock surface" );
 782             return;
 783         }
 784         DirectXUnlockSurface( p_vout, p_pic );
 785     }
 786 }
 787
 788 /*
 789 ** this function is only used once when the first picture is received
 790 ** this function will show the video window once video is ready for
 791 ** display.
 792 */
 793
 794 static void FirstDisplay( vout_thread_t *p_vout, picture_t *p_pic )
 795 {
 796     /* get initial picture rendered on overlay surface */
 797     Display(p_vout, p_pic);
 798
 799     IDirectDraw_WaitForVerticalBlank(p_vout->p_sys->p_ddobject,
 800             DDWAITVB_BLOCKBEGIN, NULL);
 801
 802     if( p_vout->p_sys->b_using_overlay )
 803     {
 804         /* set the colorkey as the backgound brush for the video window */
 805         SetClassLong( p_vout->p_sys->hvideownd, GCL_HBRBACKGROUND,
 806                       (LONG)CreateSolidBrush( p_vout->p_sys->i_rgb_colorkey ) );
 807     }
 808     /*
 809     ** Video window is initially hidden, show it now since we got a
 810     ** picture to show.
 811     */
 812     SetWindowPos( p_vout->p_sys->hvideownd, NULL, 0, 0, 0, 0,
 813         SWP_ASYNCWINDOWPOS|
 814         SWP_FRAMECHANGED|
 815         SWP_SHOWWINDOW|
 816         SWP_NOMOVE|
 817         SWP_NOSIZE|
 818         SWP_NOZORDER );
 819
 820     /* use and restores proper display function for further pictures */
 821     p_vout->pf_display = Display;
 822 }
 823
 824 /* following functions are local */
 825
 826 /*****************************************************************************
 827  * DirectXEnumCallback: Device enumeration
 828  *****************************************************************************
 829  * This callback function is called by DirectDraw once for each
 830  * available DirectDraw device.
 831  *****************************************************************************/
 832 BOOL WINAPI DirectXEnumCallback( GUID* p_guid, LPTSTR psz_desc,
 833                                  LPTSTR psz_drivername, VOID* p_context,
 834                                  HMONITOR hmon )
 835 {
 836     vout_thread_t *p_vout = (vout_thread_t *)p_context;
 837     vlc_value_t device;
 838
 839     msg_Dbg( p_vout, "DirectXEnumCallback: %s, %s", psz_desc, psz_drivername );
 840
 841     if( hmon )
 842     {
 843         var_Get( p_vout, "directx-device", &device );
 844
 845         if( ( !device.psz_string || !*device.psz_string ) &&
 846             hmon == p_vout->p_sys->hmonitor )
 847         {
 848             free( device.psz_string );
 849         }
 850         else if( strcmp( psz_drivername, device.psz_string ) == 0 )
 851         {
 852             MONITORINFO monitor_info;
 853             monitor_info.cbSize = sizeof( MONITORINFO );
 854
 855             if( p_vout->p_sys->GetMonitorInfo( hmon, &monitor_info ) )
 856             {
 857                 RECT rect;
 858
 859                 /* Move window to the right screen */
 860                 GetWindowRect( p_vout->p_sys->hwnd, &rect );
 861                 if( !IntersectRect( &rect, &rect, &monitor_info.rcWork ) )
 862                 {
 863                     rect.left = monitor_info.rcWork.left;
 864                     rect.top = monitor_info.rcWork.top;
 865                     msg_Dbg( p_vout, "DirectXEnumCallback: setting window "
 866                              "position to %ld,%ld", rect.left, rect.top );
 867                     SetWindowPos( p_vout->p_sys->hwnd, NULL,
 868                                   rect.left, rect.top, 0, 0,
 869                                   SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 870                 }
 871             }
 872
 873             p_vout->p_sys->hmonitor = hmon;
 874             free( device.psz_string );
 875         }
 876         else
 877         {
 878             free( device.psz_string );
 879             return TRUE; /* Keep enumerating */
 880         }
 881
 882         msg_Dbg( p_vout, "selecting %s, %s", psz_desc, psz_drivername );
 883         p_vout->p_sys->p_display_driver = malloc( sizeof(GUID) );
 884         if( p_vout->p_sys->p_display_driver )
 885             memcpy( p_vout->p_sys->p_display_driver, p_guid, sizeof(GUID) );
 886     }
 887
 888     return TRUE; /* Keep enumerating */
 889 }
 890
 891 /*****************************************************************************
 892  * DirectXInitDDraw: Takes care of all the DirectDraw initialisations
 893  *****************************************************************************
 894  * This function initialise and allocate resources for DirectDraw.
 895  *****************************************************************************/
 896 static int DirectXInitDDraw( vout_thread_t *p_vout )
 897 {
 898     HRESULT dxresult;
 899     HRESULT (WINAPI *OurDirectDrawCreate)(GUID *,LPDIRECTDRAW *,IUnknown *);
 900     HRESULT (WINAPI *OurDirectDrawEnumerateEx)( LPDDENUMCALLBACKEXA, LPVOID,
 901                                                 DWORD );
 902     LPDIRECTDRAW p_ddobject;
 903
 904     msg_Dbg( p_vout, "DirectXInitDDraw" );
 905
 906     /* Load direct draw DLL */
 907     p_vout->p_sys->hddraw_dll = LoadLibrary(_T("DDRAW.DLL"));
 908     if( p_vout->p_sys->hddraw_dll == NULL )
 909     {
 910         msg_Warn( p_vout, "DirectXInitDDraw failed loading ddraw.dll" );
 911         goto error;
 912     }
 913
 914     OurDirectDrawCreate =
 915       (void *)GetProcAddress( p_vout->p_sys->hddraw_dll,
 916                               _T("DirectDrawCreate") );
 917     if( OurDirectDrawCreate == NULL )
 918     {
 919         msg_Err( p_vout, "DirectXInitDDraw failed GetProcAddress" );
 920         goto error;
 921     }
 922
 923     OurDirectDrawEnumerateEx =
 924       (void *)GetProcAddress( p_vout->p_sys->hddraw_dll,
 925 #ifndef UNICODE
 926                               "DirectDrawEnumerateExA" );
 927 #else
 928                               _T("DirectDrawEnumerateExW") );
 929 #endif
 930
 931     if( OurDirectDrawEnumerateEx && p_vout->p_sys->MonitorFromWindow )
 932     {
 933         vlc_value_t device;
 934
 935         var_Get( p_vout, "directx-device", &device );
 936         if( device.psz_string )
 937         {
 938             msg_Dbg( p_vout, "directx-device: %s", device.psz_string );
 939             free( device.psz_string );
 940         }
 941
 942         p_vout->p_sys->hmonitor =
 943             p_vout->p_sys->MonitorFromWindow( p_vout->p_sys->hwnd,
 944                                               MONITOR_DEFAULTTONEAREST );
 945
 946         /* Enumerate displays */
 947         OurDirectDrawEnumerateEx( DirectXEnumCallback, p_vout,
 948                                   DDENUM_ATTACHEDSECONDARYDEVICES );
 949     }
 950
 951     /* Initialize DirectDraw now */
 952     dxresult = OurDirectDrawCreate( p_vout->p_sys->p_display_driver,
 953                                     &p_ddobject, NULL );
 954     if( dxresult != DD_OK )
 955     {
 956         msg_Err( p_vout, "DirectXInitDDraw cannot initialize DDraw" );
 957         goto error;
 958     }
 959
 960     /* Get the IDirectDraw2 interface */
 961     dxresult = IDirectDraw_QueryInterface( p_ddobject, &IID_IDirectDraw2,
 962                                         (LPVOID *)&p_vout->p_sys->p_ddobject );
 963     /* Release the unused interface */
 964     IDirectDraw_Release( p_ddobject );
 965     if( dxresult != DD_OK )
 966     {
 967         msg_Err( p_vout, "cannot get IDirectDraw2 interface" );
 968         goto error;
 969     }
 970
 971     /* Set DirectDraw Cooperative level, ie what control we want over Windows
 972      * display */
 973     dxresult = IDirectDraw2_SetCooperativeLevel( p_vout->p_sys->p_ddobject,
 974                                                  NULL, DDSCL_NORMAL );
 975     if( dxresult != DD_OK )
 976     {
 977         msg_Err( p_vout, "cannot set direct draw cooperative level" );
 978         goto error;
 979     }
 980
 981     /* Get the size of the current display device */
 982     if( p_vout->p_sys->hmonitor && p_vout->p_sys->GetMonitorInfo )
 983     {
 984         MONITORINFO monitor_info;
 985         monitor_info.cbSize = sizeof( MONITORINFO );
 986         p_vout->p_sys->GetMonitorInfo( p_vout->p_sys->hmonitor,
 987                                        &monitor_info );
 988         p_vout->p_sys->rect_display = monitor_info.rcMonitor;
 989     }
 990     else
 991     {
 992         p_vout->p_sys->rect_display.left = 0;
 993         p_vout->p_sys->rect_display.top = 0;
 994         p_vout->p_sys->rect_display.right  = GetSystemMetrics(SM_CXSCREEN);
 995         p_vout->p_sys->rect_display.bottom = GetSystemMetrics(SM_CYSCREEN);
 996     }
 997
 998     msg_Dbg( p_vout, "screen dimensions (%lix%li,%lix%li)",
 999              p_vout->p_sys->rect_display.left,
1000              p_vout->p_sys->rect_display.top,
1001              p_vout->p_sys->rect_display.right,
1002              p_vout->p_sys->rect_display.bottom );
1003
1004     /* Probe the capabilities of the hardware */
1005     DirectXGetDDrawCaps( p_vout );
1006
1007     msg_Dbg( p_vout, "End DirectXInitDDraw" );
1008     return VLC_SUCCESS;
1009
1010  error:
1011     if( p_vout->p_sys->p_ddobject )
1012         IDirectDraw2_Release( p_vout->p_sys->p_ddobject );
1013     if( p_vout->p_sys->hddraw_dll )
1014         FreeLibrary( p_vout->p_sys->hddraw_dll );
1015     p_vout->p_sys->hddraw_dll = NULL;
1016     p_vout->p_sys->p_ddobject = NULL;
1017     return VLC_EGENERIC;
1018 }
1019
1020 /*****************************************************************************
1021  * DirectXCreateDisplay: create the DirectDraw display.
1022  *****************************************************************************
1023  * Create and initialize display according to preferences specified in the vout
1024  * thread fields.
1025  *****************************************************************************/
1026 static int DirectXCreateDisplay( vout_thread_t *p_vout )
1027 {
1028     HRESULT              dxresult;
1029     DDSURFACEDESC        ddsd;
1030     LPDIRECTDRAWSURFACE  p_display;
1031
1032     msg_Dbg( p_vout, "DirectXCreateDisplay" );
1033
1034     /* Now get the primary surface. This surface is what you actually see
1035      * on your screen */
1036     memset( &ddsd, 0, sizeof( DDSURFACEDESC ));
1037     ddsd.dwSize = sizeof(DDSURFACEDESC);
1038     ddsd.dwFlags = DDSD_CAPS;
1039     ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
1040
1041     dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1042                                            &ddsd, &p_display, NULL );
1043     if( dxresult != DD_OK )
1044     {
1045         msg_Err( p_vout, "cannot get primary surface (error %li)", dxresult );
1046         return VLC_EGENERIC;
1047     }
1048
1049     dxresult = IDirectDrawSurface_QueryInterface( p_display,
1050                                          &IID_IDirectDrawSurface2,
1051                                          (LPVOID *)&p_vout->p_sys->p_display );
1052     /* Release the old interface */
1053     IDirectDrawSurface_Release( p_display );
1054     if ( dxresult != DD_OK )
1055     {
1056         msg_Err( p_vout, "cannot query IDirectDrawSurface2 interface "
1057                          "(error %li)", dxresult );
1058         return VLC_EGENERIC;
1059     }
1060
1061     /* The clipper will be used only in non-overlay mode */
1062     DirectXCreateClipper( p_vout );
1063
1064     /* Make sure the colorkey will be painted */
1065     p_vout->p_sys->i_colorkey = 1;
1066     p_vout->p_sys->i_rgb_colorkey =
1067         DirectXFindColorkey( p_vout, &p_vout->p_sys->i_colorkey );
1068
1069     UpdateRects( p_vout, true );
1070
1071     return VLC_SUCCESS;
1072 }
1073
1074 /*****************************************************************************
1075  * DirectXCreateClipper: Create a clipper that will be used when blitting the
1076  *                       RGB surface to the main display.
1077  *****************************************************************************
1078  * This clipper prevents us to modify by mistake anything on the screen
1079  * which doesn't belong to our window. For example when a part of our video
1080  * window is hidden by another window.
1081  *****************************************************************************/
1082 static int DirectXCreateClipper( vout_thread_t *p_vout )
1083 {
1084     HRESULT dxresult;
1085
1086     msg_Dbg( p_vout, "DirectXCreateClipper" );
1087
1088     /* Create the clipper */
1089     dxresult = IDirectDraw2_CreateClipper( p_vout->p_sys->p_ddobject, 0,
1090                                            &p_vout->p_sys->p_clipper, NULL );
1091     if( dxresult != DD_OK )
1092     {
1093         msg_Warn( p_vout, "cannot create clipper (error %li)", dxresult );
1094         goto error;
1095     }
1096
1097     /* Associate the clipper to the window */
1098     dxresult = IDirectDrawClipper_SetHWnd( p_vout->p_sys->p_clipper, 0,
1099                                            p_vout->p_sys->hvideownd );
1100     if( dxresult != DD_OK )
1101     {
1102         msg_Warn( p_vout, "cannot attach clipper to window (error %li)",
1103                           dxresult );
1104         goto error;
1105     }
1106
1107     /* associate the clipper with the surface */
1108     dxresult = IDirectDrawSurface_SetClipper(p_vout->p_sys->p_display,
1109                                              p_vout->p_sys->p_clipper);
1110     if( dxresult != DD_OK )
1111     {
1112         msg_Warn( p_vout, "cannot attach clipper to surface (error %li)",
1113                           dxresult );
1114         goto error;
1115     }
1116
1117     return VLC_SUCCESS;
1118
1119  error:
1120     if( p_vout->p_sys->p_clipper )
1121     {
1122         IDirectDrawClipper_Release( p_vout->p_sys->p_clipper );
1123     }
1124     p_vout->p_sys->p_clipper = NULL;
1125     return VLC_EGENERIC;
1126 }
1127
1128 /*****************************************************************************
1129  * DirectXCreateSurface: create an YUV overlay or RGB surface for the video.
1130  *****************************************************************************
1131  * The best method of display is with an YUV overlay because the YUV->RGB
1132  * conversion is done in hardware.
1133  * You can also create a plain RGB surface.
1134  * ( Maybe we could also try an RGB overlay surface, which could have hardware
1135  * scaling and which would also be faster in window mode because you don't
1136  * need to do any blitting to the main display...)
1137  *****************************************************************************/
1138 static int DirectXCreateSurface( vout_thread_t *p_vout,
1139                                  LPDIRECTDRAWSURFACE2 *pp_surface_final,
1140                                  int i_chroma, int b_overlay,
1141                                  int i_backbuffers )
1142 {
1143     HRESULT dxresult;
1144     LPDIRECTDRAWSURFACE p_surface;
1145     DDSURFACEDESC ddsd;
1146
1147     /* Create the video surface */
1148     if( b_overlay )
1149     {
1150         /* Now try to create the YUV overlay surface.
1151          * This overlay will be displayed on top of the primary surface.
1152          * A color key is used to determine whether or not the overlay will be
1153          * displayed, ie the overlay will be displayed in place of the primary
1154          * surface wherever the primary surface will have this color.
1155          * The video window has been created with a background of this color so
1156          * the overlay will be only displayed on top of this window */
1157
1158         memset( &ddsd, 0, sizeof( DDSURFACEDESC ));
1159         ddsd.dwSize = sizeof(DDSURFACEDESC);
1160         ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1161         ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
1162         ddsd.ddpfPixelFormat.dwFourCC = i_chroma;
1163         ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT;
1164         ddsd.dwFlags |= (i_backbuffers ? DDSD_BACKBUFFERCOUNT : 0);
1165         ddsd.ddsCaps.dwCaps = DDSCAPS_OVERLAY | DDSCAPS_VIDEOMEMORY;
1166         ddsd.ddsCaps.dwCaps |= (i_backbuffers ? DDSCAPS_COMPLEX | DDSCAPS_FLIP
1167                                 : 0 );
1168         ddsd.dwHeight = p_vout->render.i_height;
1169         ddsd.dwWidth = p_vout->render.i_width;
1170         ddsd.dwBackBufferCount = i_backbuffers;
1171
1172         dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1173                                                &ddsd, &p_surface, NULL );
1174         if( dxresult != DD_OK )
1175         {
1176             *pp_surface_final = NULL;
1177             return VLC_EGENERIC;
1178         }
1179     }
1180
1181     if( !b_overlay )
1182     {
1183         bool b_rgb_surface =
1184             ( i_chroma == VLC_FOURCC('R','G','B','2') )
1185           || ( i_chroma == VLC_FOURCC('R','V','1','5') )
1186            || ( i_chroma == VLC_FOURCC('R','V','1','6') )
1187             || ( i_chroma == VLC_FOURCC('R','V','2','4') )
1188              || ( i_chroma == VLC_FOURCC('R','V','3','2') );
1189
1190         memset( &ddsd, 0, sizeof( DDSURFACEDESC ) );
1191         ddsd.dwSize = sizeof(DDSURFACEDESC);
1192         ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1193         ddsd.dwFlags = DDSD_HEIGHT | DDSD_WIDTH | DDSD_CAPS;
1194         ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
1195         ddsd.dwHeight = p_vout->render.i_height;
1196         ddsd.dwWidth = p_vout->render.i_width;
1197
1198         if( p_vout->p_sys->b_use_sysmem )
1199             ddsd.ddsCaps.dwCaps |= DDSCAPS_SYSTEMMEMORY;
1200         else
1201             ddsd.ddsCaps.dwCaps |= DDSCAPS_VIDEOMEMORY;
1202
1203         if( !b_rgb_surface )
1204         {
1205             ddsd.dwFlags |= DDSD_PIXELFORMAT;
1206             ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
1207             ddsd.ddpfPixelFormat.dwFourCC = i_chroma;
1208         }
1209
1210         dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1211                                                &ddsd, &p_surface, NULL );
1212         if( dxresult != DD_OK )
1213         {
1214             *pp_surface_final = NULL;
1215             return VLC_EGENERIC;
1216         }
1217     }
1218
1219     /* Now that the surface is created, try to get a newer DirectX interface */
1220     dxresult = IDirectDrawSurface_QueryInterface( p_surface,
1221                                      &IID_IDirectDrawSurface2,
1222                                      (LPVOID *)pp_surface_final );
1223     IDirectDrawSurface_Release( p_surface );    /* Release the old interface */
1224     if ( dxresult != DD_OK )
1225     {
1226         msg_Err( p_vout, "cannot query IDirectDrawSurface2 interface "
1227                          "(error %li)", dxresult );
1228         *pp_surface_final = NULL;
1229         return VLC_EGENERIC;
1230     }
1231
1232     if( b_overlay )
1233     {
1234         /* Check the overlay is useable as some graphics cards allow creating
1235          * several overlays but only one can be used at one time. */
1236         p_vout->p_sys->p_current_surface = *pp_surface_final;
1237         if( DirectDrawUpdateOverlay( p_vout ) != VLC_SUCCESS )
1238         {
1239             IDirectDrawSurface2_Release( *pp_surface_final );
1240             *pp_surface_final = NULL;
1241             msg_Err( p_vout, "overlay unuseable (might already be in use)" );
1242             return VLC_EGENERIC;
1243         }
1244     }
1245
1246     return VLC_SUCCESS;
1247 }
1248
1249 /*****************************************************************************
1250  * DirectDrawUpdateOverlay: Move or resize overlay surface on video display.
1251  *****************************************************************************
1252  * This function is used to move or resize an overlay surface on the screen.
1253  * Ususally the overlay is moved by the user and thus, by a move or resize
1254  * event (in Manage).
1255  *****************************************************************************/
1256 int DirectDrawUpdateOverlay( vout_thread_t *p_vout )
1257 {
1258     DDOVERLAYFX     ddofx;
1259     DWORD           dwFlags;
1260     HRESULT         dxresult;
1261     RECT            rect_src = p_vout->p_sys->rect_src_clipped;
1262     RECT            rect_dest = p_vout->p_sys->rect_dest_clipped;
1263
1264     if( !p_vout->p_sys->b_using_overlay ) return VLC_EGENERIC;
1265
1266     if( p_vout->p_sys->b_wallpaper )
1267     {
1268         int i_x, i_y, i_width, i_height;
1269
1270         rect_src.left = p_vout->fmt_out.i_x_offset;
1271         rect_src.top = p_vout->fmt_out.i_y_offset;
1272         rect_src.right = rect_src.left + p_vout->fmt_out.i_visible_width;
1273         rect_src.bottom = rect_src.top + p_vout->fmt_out.i_visible_height;
1274
1275         rect_dest = p_vout->p_sys->rect_display;
1276         vout_PlacePicture( p_vout, rect_dest.right, rect_dest.bottom,
1277                            &i_x, &i_y, &i_width, &i_height );
1278
1279         rect_dest.left += i_x;
1280         rect_dest.right = rect_dest.left + i_width;
1281         rect_dest.top += i_y;
1282         rect_dest.bottom = rect_dest.top + i_height;
1283     }
1284
1285     vlc_mutex_lock( &p_vout->p_sys->lock );
1286     if( p_vout->p_sys->p_current_surface == NULL )
1287     {
1288         vlc_mutex_unlock( &p_vout->p_sys->lock );
1289         return VLC_EGENERIC;
1290     }
1291
1292     /* The new window dimensions should already have been computed by the
1293      * caller of this function */
1294
1295     /* Position and show the overlay */
1296     memset(&ddofx, 0, sizeof(DDOVERLAYFX));
1297     ddofx.dwSize = sizeof(DDOVERLAYFX);
1298     ddofx.dckDestColorkey.dwColorSpaceLowValue = p_vout->p_sys->i_colorkey;
1299     ddofx.dckDestColorkey.dwColorSpaceHighValue = p_vout->p_sys->i_colorkey;
1300
1301     dwFlags = DDOVER_SHOW | DDOVER_KEYDESTOVERRIDE;
1302
1303     dxresult = IDirectDrawSurface2_UpdateOverlay(
1304                    p_vout->p_sys->p_current_surface,
1305                    &rect_src, p_vout->p_sys->p_display, &rect_dest,
1306                    dwFlags, &ddofx );
1307
1308     vlc_mutex_unlock( &p_vout->p_sys->lock );
1309
1310     if(dxresult != DD_OK)
1311     {
1312         msg_Warn( p_vout, "DirectDrawUpdateOverlay cannot move/resize overlay" );
1313         return VLC_EGENERIC;
1314     }
1315
1316     return VLC_SUCCESS;
1317 }
1318
1319 /*****************************************************************************
1320  * DirectXCloseDDraw: Release the DDraw object allocated by DirectXInitDDraw
1321  *****************************************************************************
1322  * This function returns all resources allocated by DirectXInitDDraw.
1323  *****************************************************************************/
1324 static void DirectXCloseDDraw( vout_thread_t *p_vout )
1325 {
1326     msg_Dbg( p_vout, "DirectXCloseDDraw" );
1327     if( p_vout->p_sys->p_ddobject != NULL )
1328     {
1329         IDirectDraw2_Release(p_vout->p_sys->p_ddobject);
1330         p_vout->p_sys->p_ddobject = NULL;
1331     }
1332
1333     if( p_vout->p_sys->hddraw_dll != NULL )
1334     {
1335         FreeLibrary( p_vout->p_sys->hddraw_dll );
1336         p_vout->p_sys->hddraw_dll = NULL;
1337     }
1338
1339     free( p_vout->p_sys->p_display_driver );
1340     p_vout->p_sys->p_display_driver = NULL;
1341
1342     p_vout->p_sys->hmonitor = NULL;
1343 }
1344
1345 /*****************************************************************************
1346  * DirectXCloseDisplay: close and reset the DirectX display device
1347  *****************************************************************************
1348  * This function returns all resources allocated by DirectXCreateDisplay.
1349  *****************************************************************************/
1350 static void DirectXCloseDisplay( vout_thread_t *p_vout )
1351 {
1352     msg_Dbg( p_vout, "DirectXCloseDisplay" );
1353
1354     if( p_vout->p_sys->p_clipper != NULL )
1355     {
1356         msg_Dbg( p_vout, "DirectXCloseDisplay clipper" );
1357         IDirectDrawClipper_Release( p_vout->p_sys->p_clipper );
1358         p_vout->p_sys->p_clipper = NULL;
1359     }
1360
1361     if( p_vout->p_sys->p_display != NULL )
1362     {
1363         msg_Dbg( p_vout, "DirectXCloseDisplay display" );
1364         IDirectDrawSurface2_Release( p_vout->p_sys->p_display );
1365         p_vout->p_sys->p_display = NULL;
1366     }
1367 }
1368
1369 /*****************************************************************************
1370  * DirectXCloseSurface: close the YUV overlay or RGB surface.
1371  *****************************************************************************
1372  * This function returns all resources allocated for the surface.
1373  *****************************************************************************/
1374 static void DirectXCloseSurface( vout_thread_t *p_vout,
1375                                  LPDIRECTDRAWSURFACE2 p_surface )
1376 {
1377     msg_Dbg( p_vout, "DirectXCloseSurface" );
1378     if( p_surface != NULL )
1379     {
1380         IDirectDrawSurface2_Release( p_surface );
1381     }
1382 }
1383
1384 /*****************************************************************************
1385  * NewPictureVec: allocate a vector of identical pictures
1386  *****************************************************************************
1387  * Returns 0 on success, -1 otherwise
1388  *****************************************************************************/
1389 static int NewPictureVec( vout_thread_t *p_vout, picture_t *p_pic,
1390                           int i_num_pics )
1391 {
1392     int i;
1393     int i_ret = VLC_SUCCESS;
1394     LPDIRECTDRAWSURFACE2 p_surface;
1395
1396     msg_Dbg( p_vout, "NewPictureVec overlay:%s chroma:%.4s",
1397              p_vout->p_sys->b_using_overlay ? "yes" : "no",
1398              (char *)&p_vout->output.i_chroma );
1399
1400     I_OUTPUTPICTURES = 0;
1401
1402     /* First we try to use an YUV overlay surface.
1403      * The overlay surface that we create won't be used to decode directly
1404      * into it because accessing video memory directly is way to slow (remember
1405      * that pictures are decoded macroblock per macroblock). Instead the video
1406      * will be decoded in picture buffers in system memory which will then be
1407      * memcpy() to the overlay surface. */
1408     if( p_vout->p_sys->b_using_overlay )
1409     {
1410         /* Triple buffering rocks! it doesn't have any processing overhead
1411          * (you don't have to wait for the vsync) and provides for a very nice
1412          * video quality (no tearing). */
1413         if( p_vout->p_sys->b_3buf_overlay )
1414             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1415                                           p_vout->output.i_chroma,
1416                                           p_vout->p_sys->b_using_overlay,
1417                                           2 /* number of backbuffers */ );
1418
1419         if( !p_vout->p_sys->b_3buf_overlay || i_ret != VLC_SUCCESS )
1420         {
1421             /* Try to reduce the number of backbuffers */
1422             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1423                                           p_vout->output.i_chroma,
1424                                           p_vout->p_sys->b_using_overlay,
1425                                           0 /* number of backbuffers */ );
1426         }
1427
1428         if( i_ret == VLC_SUCCESS )
1429         {
1430             DDSCAPS dds_caps;
1431             picture_t front_pic;
1432             picture_sys_t front_pic_sys;
1433             front_pic.p_sys = &front_pic_sys;
1434
1435             /* Allocate internal structure */
1436             p_pic[0].p_sys = malloc( sizeof( picture_sys_t ) );
1437             if( p_pic[0].p_sys == NULL )
1438             {
1439                 DirectXCloseSurface( p_vout, p_surface );
1440                 return VLC_ENOMEM;
1441             }
1442
1443             /* set front buffer */
1444             p_pic[0].p_sys->p_front_surface = p_surface;
1445
1446             /* Get the back buffer */
1447             memset( &dds_caps, 0, sizeof( DDSCAPS ) );
1448             dds_caps.dwCaps = DDSCAPS_BACKBUFFER;
1449             if( DD_OK != IDirectDrawSurface2_GetAttachedSurface(
1450                                                 p_surface, &dds_caps,
1451                                                 &p_pic[0].p_sys->p_surface ) )
1452             {
1453                 msg_Warn( p_vout, "NewPictureVec could not get back buffer" );
1454                 /* front buffer is the same as back buffer */
1455                 p_pic[0].p_sys->p_surface = p_surface;
1456             }
1457
1458
1459             p_vout->p_sys->p_current_surface = front_pic.p_sys->p_surface =
1460                 p_pic[0].p_sys->p_front_surface;
1461
1462             /* Reset the front buffer memory */
1463             if( DirectXLockSurface( p_vout, &front_pic ) == VLC_SUCCESS )
1464             {
1465                 int i,j;
1466                 for( i = 0; i < front_pic.i_planes; i++ )
1467                     for( j = 0; j < front_pic.p[i].i_visible_lines; j++)
1468                         memset( front_pic.p[i].p_pixels + j *
1469                                 front_pic.p[i].i_pitch, 127,
1470                                 front_pic.p[i].i_visible_pitch );
1471
1472                 DirectXUnlockSurface( p_vout, &front_pic );
1473             }
1474
1475             DirectDrawUpdateOverlay( p_vout );
1476             I_OUTPUTPICTURES = 1;
1477             msg_Dbg( p_vout, "YUV overlay created successfully" );
1478         }
1479     }
1480
1481     /* As we can't have an overlay, we'll try to create a plain offscreen
1482      * surface. This surface will reside in video memory because there's a
1483      * better chance then that we'll be able to use some kind of hardware
1484      * acceleration like rescaling, blitting or YUV->RGB conversions.
1485      * We then only need to blit this surface onto the main display when we
1486      * want to display it */
1487     if( !p_vout->p_sys->b_using_overlay )
1488     {
1489         if( p_vout->p_sys->b_hw_yuv )
1490         {
1491             DWORD i_codes;
1492             DWORD *pi_codes;
1493             bool b_result = false;
1494
1495             /* Check if the chroma is supported first. This is required
1496              * because a few buggy drivers don't mind creating the surface
1497              * even if they don't know about the chroma. */
1498             if( IDirectDraw2_GetFourCCCodes( p_vout->p_sys->p_ddobject,
1499                                              &i_codes, NULL ) == DD_OK )
1500             {
1501                 pi_codes = malloc( i_codes * sizeof(DWORD) );
1502                 if( pi_codes && IDirectDraw2_GetFourCCCodes(
1503                     p_vout->p_sys->p_ddobject, &i_codes, pi_codes ) == DD_OK )
1504                 {
1505                     for( i = 0; i < (int)i_codes; i++ )
1506                     {
1507                         if( p_vout->output.i_chroma == pi_codes[i] )
1508                         {
1509                             b_result = true;
1510                             break;
1511                         }
1512                     }
1513                 }
1514             }
1515
1516             if( b_result )
1517                 i_ret = DirectXCreateSurface( p_vout, &p_surface,
1518                                               p_vout->output.i_chroma,
1519                                               0 /* no overlay */,
1520                                               0 /* no back buffers */ );
1521             else
1522                 p_vout->p_sys->b_hw_yuv = false;
1523         }
1524
1525         if( i_ret || !p_vout->p_sys->b_hw_yuv )
1526         {
1527             /* Our last choice is to use a plain RGB surface */
1528             DDPIXELFORMAT ddpfPixelFormat;
1529
1530             ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1531             IDirectDrawSurface2_GetPixelFormat( p_vout->p_sys->p_display,
1532                                                 &ddpfPixelFormat );
1533
1534             if( ddpfPixelFormat.dwFlags & DDPF_RGB )
1535             {
1536                 switch( ddpfPixelFormat.dwRGBBitCount )
1537                 {
1538                 case 8:
1539                     p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');
1540                     p_vout->output.pf_setpalette = SetPalette;
1541                     break;
1542                 case 15:
1543                     p_vout->output.i_chroma = VLC_FOURCC('R','V','1','5');
1544                     break;
1545                 case 16:
1546                     p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');
1547                     break;
1548                 case 24:
1549                     p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');
1550                     break;
1551                 case 32:
1552                     p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');
1553                     break;
1554                 default:
1555                     msg_Err( p_vout, "unknown screen depth" );
1556                     return VLC_EGENERIC;
1557                 }
1558                 p_vout->output.i_rmask = ddpfPixelFormat.dwRBitMask;
1559                 p_vout->output.i_gmask = ddpfPixelFormat.dwGBitMask;
1560                 p_vout->output.i_bmask = ddpfPixelFormat.dwBBitMask;
1561             }
1562
1563             p_vout->p_sys->b_hw_yuv = 0;
1564
1565             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1566                                           p_vout->output.i_chroma,
1567                                           0 /* no overlay */,
1568                                           0 /* no back buffers */ );
1569
1570             if( i_ret && !p_vout->p_sys->b_use_sysmem )
1571             {
1572                 /* Give it a last try with b_use_sysmem enabled */
1573                 p_vout->p_sys->b_use_sysmem = 1;
1574
1575                 i_ret = DirectXCreateSurface( p_vout, &p_surface,
1576                                               p_vout->output.i_chroma,
1577                                               0 /* no overlay */,
1578                                               0 /* no back buffers */ );
1579             }
1580         }
1581
1582         if( i_ret == VLC_SUCCESS )
1583         {
1584             /* Allocate internal structure */
1585             p_pic[0].p_sys = malloc( sizeof( picture_sys_t ) );
1586             if( p_pic[0].p_sys == NULL )
1587             {
1588                 DirectXCloseSurface( p_vout, p_surface );
1589                 return VLC_ENOMEM;
1590             }
1591
1592             p_pic[0].p_sys->p_surface = p_pic[0].p_sys->p_front_surface
1593                 = p_surface;
1594
1595             I_OUTPUTPICTURES = 1;
1596
1597             msg_Dbg( p_vout, "created plain surface of chroma:%.4s",
1598                      (char *)&p_vout->output.i_chroma );
1599         }
1600     }
1601
1602
1603     /* Now that we've got all our direct-buffers, we can finish filling in the
1604      * picture_t structures */
1605     for( i = 0; i < I_OUTPUTPICTURES; i++ )
1606     {
1607         p_pic[i].i_status = DESTROYED_PICTURE;
1608         p_pic[i].i_type   = DIRECT_PICTURE;
1609         p_pic[i].b_slow   = true;
1610         p_pic[i].pf_lock  = DirectXLockSurface;
1611         p_pic[i].pf_unlock = DirectXUnlockSurface;
1612         PP_OUTPUTPICTURE[i] = &p_pic[i];
1613
1614         if( DirectXLockSurface( p_vout, &p_pic[i] ) != VLC_SUCCESS )
1615         {
1616             /* AAARRGG */
1617             FreePictureVec( p_vout, p_pic, I_OUTPUTPICTURES );
1618             I_OUTPUTPICTURES = 0;
1619             msg_Err( p_vout, "cannot lock surface" );
1620             return VLC_EGENERIC;
1621         }
1622         DirectXUnlockSurface( p_vout, &p_pic[i] );
1623     }
1624
1625     msg_Dbg( p_vout, "End NewPictureVec (%s)",
1626              I_OUTPUTPICTURES ? "succeeded" : "failed" );
1627
1628     return VLC_SUCCESS;
1629 }
1630
1631 /*****************************************************************************
1632  * FreePicture: destroy a picture vector allocated with NewPictureVec
1633  *****************************************************************************
1634  *
1635  *****************************************************************************/
1636 static void FreePictureVec( vout_thread_t *p_vout, picture_t *p_pic,
1637                             int i_num_pics )
1638 {
1639     int i;
1640
1641     vlc_mutex_lock( &p_vout->p_sys->lock );
1642     p_vout->p_sys->p_current_surface = 0;
1643     vlc_mutex_unlock( &p_vout->p_sys->lock );
1644
1645     for( i = 0; i < i_num_pics; i++ )
1646     {
1647         DirectXCloseSurface( p_vout, p_pic[i].p_sys->p_front_surface );
1648
1649         for( i = 0; i < i_num_pics; i++ )
1650         {
1651             free( p_pic[i].p_sys );
1652         }
1653     }
1654 }
1655
1656 /*****************************************************************************
1657  * UpdatePictureStruct: updates the internal data in the picture_t structure
1658  *****************************************************************************
1659  * This will setup stuff for use by the video_output thread
1660  *****************************************************************************/
1661 static int UpdatePictureStruct( vout_thread_t *p_vout, picture_t *p_pic,
1662                                 int i_chroma )
1663 {
1664     switch( p_vout->output.i_chroma )
1665     {
1666         case VLC_FOURCC('R','G','B','2'):
1667         case VLC_FOURCC('R','V','1','5'):
1668         case VLC_FOURCC('R','V','1','6'):
1669         case VLC_FOURCC('R','V','2','4'):
1670         case VLC_FOURCC('R','V','3','2'):
1671             p_pic->p->p_pixels = p_pic->p_sys->ddsd.lpSurface;
1672             p_pic->p->i_lines = p_vout->output.i_height;
1673             p_pic->p->i_visible_lines = p_vout->output.i_height;
1674             p_pic->p->i_pitch = p_pic->p_sys->ddsd.lPitch;
1675             switch( p_vout->output.i_chroma )
1676             {
1677                 case VLC_FOURCC('R','G','B','2'):
1678                     p_pic->p->i_pixel_pitch = 1;
1679                     break;
1680                 case VLC_FOURCC('R','V','1','5'):
1681                 case VLC_FOURCC('R','V','1','6'):
1682                     p_pic->p->i_pixel_pitch = 2;
1683                     break;
1684                 case VLC_FOURCC('R','V','2','4'):
1685                     p_pic->p->i_pixel_pitch = 3;
1686                     break;
1687                 case VLC_FOURCC('R','V','3','2'):
1688                     p_pic->p->i_pixel_pitch = 4;
1689                     break;
1690                 default:
1691                     return VLC_EGENERIC;
1692             }
1693             p_pic->p->i_visible_pitch = p_vout->output.i_width *
1694               p_pic->p->i_pixel_pitch;
1695             p_pic->i_planes = 1;
1696             break;
1697
1698         case VLC_FOURCC('Y','V','1','2'):
1699         case VLC_FOURCC('I','4','2','0'):
1700
1701             /* U and V inverted compared to I420
1702              * Fixme: this should be handled by the vout core */
1703             p_vout->output.i_chroma = VLC_FOURCC('I','4','2','0');
1704
1705             p_pic->Y_PIXELS = p_pic->p_sys->ddsd.lpSurface;
1706             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1707             p_pic->p[Y_PLANE].i_visible_lines = p_vout->output.i_height;
1708             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->ddsd.lPitch;
1709             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1710             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width *
1711               p_pic->p[Y_PLANE].i_pixel_pitch;
1712
1713             p_pic->V_PIXELS =  p_pic->Y_PIXELS
1714               + p_pic->p[Y_PLANE].i_lines * p_pic->p[Y_PLANE].i_pitch;
1715             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1716             p_pic->p[V_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1717             p_pic->p[V_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1718             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1719             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1720               p_pic->p[V_PLANE].i_pixel_pitch;
1721
1722             p_pic->U_PIXELS = p_pic->V_PIXELS
1723               + p_pic->p[V_PLANE].i_lines * p_pic->p[V_PLANE].i_pitch;
1724             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1725             p_pic->p[U_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1726             p_pic->p[U_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1727             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1728             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1729               p_pic->p[U_PLANE].i_pixel_pitch;
1730
1731             p_pic->i_planes = 3;
1732             break;
1733
1734         case VLC_FOURCC('I','Y','U','V'):
1735
1736             p_pic->Y_PIXELS = p_pic->p_sys->ddsd.lpSurface;
1737             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1738             p_pic->p[Y_PLANE].i_visible_lines = p_vout->output.i_height;
1739             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->ddsd.lPitch;
1740             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1741             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width *
1742               p_pic->p[Y_PLANE].i_pixel_pitch;
1743
1744             p_pic->U_PIXELS = p_pic->Y_PIXELS
1745               + p_pic->p[Y_PLANE].i_lines * p_pic->p[Y_PLANE].i_pitch;
1746             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1747             p_pic->p[U_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1748             p_pic->p[U_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1749             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1750             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1751               p_pic->p[U_PLANE].i_pixel_pitch;
1752
1753             p_pic->V_PIXELS =  p_pic->U_PIXELS
1754               + p_pic->p[U_PLANE].i_lines * p_pic->p[U_PLANE].i_pitch;
1755             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1756             p_pic->p[V_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1757             p_pic->p[V_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1758             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1759             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1760               p_pic->p[V_PLANE].i_pixel_pitch;
1761
1762             p_pic->i_planes = 3;
1763             break;
1764
1765         case VLC_FOURCC('U','Y','V','Y'):
1766         case VLC_FOURCC('Y','U','Y','2'):
1767
1768             p_pic->p->p_pixels = p_pic->p_sys->ddsd.lpSurface;
1769             p_pic->p->i_lines = p_vout->output.i_height;
1770             p_pic->p->i_visible_lines = p_vout->output.i_height;
1771             p_pic->p->i_pitch = p_pic->p_sys->ddsd.lPitch;
1772             p_pic->p->i_pixel_pitch = 2;
1773             p_pic->p->i_visible_pitch = p_vout->output.i_width *
1774               p_pic->p->i_pixel_pitch;
1775
1776             p_pic->i_planes = 1;
1777             break;
1778
1779         default:
1780             /* Unknown chroma, tell the guy to get lost */
1781             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1782                      p_vout->output.i_chroma,
1783                      (char*)&p_vout->output.i_chroma );
1784             return VLC_EGENERIC;
1785     }
1786
1787     return VLC_SUCCESS;
1788 }
1789
1790 /*****************************************************************************
1791  * DirectXGetDDrawCaps: Probe the capabilities of the hardware
1792  *****************************************************************************
1793  * It is nice to know which features are supported by the hardware so we can
1794  * find ways to optimize our rendering.
1795  *****************************************************************************/
1796 static void DirectXGetDDrawCaps( vout_thread_t *p_vout )
1797 {
1798     DDCAPS ddcaps;
1799     HRESULT dxresult;
1800
1801     /* This is just an indication of whether or not we'll support overlay,
1802      * but with this test we don't know if we support YUV overlay */
1803     memset( &ddcaps, 0, sizeof( DDCAPS ));
1804     ddcaps.dwSize = sizeof(DDCAPS);
1805     dxresult = IDirectDraw2_GetCaps( p_vout->p_sys->p_ddobject,
1806                                      &ddcaps, NULL );
1807     if(dxresult != DD_OK )
1808     {
1809         msg_Warn( p_vout, "cannot get caps" );
1810     }
1811     else
1812     {
1813         bool bHasOverlay, bHasOverlayFourCC, bCanDeinterlace,
1814              bHasColorKey, bCanStretch, bCanBltFourcc,
1815              bAlignBoundarySrc, bAlignBoundaryDest,
1816              bAlignSizeSrc, bAlignSizeDest;
1817
1818         /* Determine if the hardware supports overlay surfaces */
1819         bHasOverlay = (ddcaps.dwCaps & DDCAPS_OVERLAY) ? 1 : 0;
1820         /* Determine if the hardware supports overlay surfaces */
1821         bHasOverlayFourCC = (ddcaps.dwCaps & DDCAPS_OVERLAYFOURCC) ? 1 : 0;
1822         /* Determine if the hardware supports overlay deinterlacing */
1823         bCanDeinterlace = (ddcaps.dwCaps & DDCAPS2_CANFLIPODDEVEN) ? 1 : 0;
1824         /* Determine if the hardware supports colorkeying */
1825         bHasColorKey = (ddcaps.dwCaps & DDCAPS_COLORKEY) ? 1 : 0;
1826         /* Determine if the hardware supports scaling of the overlay surface */
1827         bCanStretch = (ddcaps.dwCaps & DDCAPS_OVERLAYSTRETCH) ? 1 : 0;
1828         /* Determine if the hardware supports color conversion during a blit */
1829         bCanBltFourcc = (ddcaps.dwCaps & DDCAPS_BLTFOURCC) ? 1 : 0;
1830         /* Determine overlay source boundary alignment */
1831         bAlignBoundarySrc = (ddcaps.dwCaps & DDCAPS_ALIGNBOUNDARYSRC) ? 1 : 0;
1832         /* Determine overlay destination boundary alignment */
1833         bAlignBoundaryDest = (ddcaps.dwCaps & DDCAPS_ALIGNBOUNDARYDEST) ? 1:0;
1834         /* Determine overlay destination size alignment */
1835         bAlignSizeSrc = (ddcaps.dwCaps & DDCAPS_ALIGNSIZESRC) ? 1 : 0;
1836         /* Determine overlay destination size alignment */
1837         bAlignSizeDest = (ddcaps.dwCaps & DDCAPS_ALIGNSIZEDEST) ? 1 : 0;
1838
1839         msg_Dbg( p_vout, "DirectDraw Capabilities: overlay=%i yuvoverlay=%i "
1840                          "can_deinterlace_overlay=%i colorkey=%i stretch=%i "
1841                          "bltfourcc=%i",
1842                          bHasOverlay, bHasOverlayFourCC, bCanDeinterlace,
1843                          bHasColorKey, bCanStretch, bCanBltFourcc );
1844
1845         if( bAlignBoundarySrc || bAlignBoundaryDest ||
1846             bAlignSizeSrc || bAlignSizeDest )
1847         {
1848             if( bAlignBoundarySrc ) p_vout->p_sys->i_align_src_boundary =
1849                 ddcaps.dwAlignBoundarySrc;
1850             if( bAlignBoundaryDest ) p_vout->p_sys->i_align_dest_boundary =
1851                 ddcaps.dwAlignBoundaryDest;
1852             if( bAlignSizeDest ) p_vout->p_sys->i_align_src_size =
1853                 ddcaps.dwAlignSizeSrc;
1854             if( bAlignSizeDest ) p_vout->p_sys->i_align_dest_size =
1855                 ddcaps.dwAlignSizeDest;
1856
1857             msg_Dbg( p_vout, "align_boundary_src=%i,%i "
1858                      "align_boundary_dest=%i,%i "
1859                      "align_size_src=%i,%i align_size_dest=%i,%i",
1860                      bAlignBoundarySrc, p_vout->p_sys->i_align_src_boundary,
1861                      bAlignBoundaryDest, p_vout->p_sys->i_align_dest_boundary,
1862                      bAlignSizeSrc, p_vout->p_sys->i_align_src_size,
1863                      bAlignSizeDest, p_vout->p_sys->i_align_dest_size );
1864         }
1865
1866         /* Don't ask for troubles */
1867         if( !bCanBltFourcc ) p_vout->p_sys->b_hw_yuv = FALSE;
1868     }
1869 }
1870
1871 /*****************************************************************************
1872  * DirectXLockSurface: Lock surface and get picture data pointer
1873  *****************************************************************************
1874  * This function locks a surface and get the surface descriptor which amongst
1875  * other things has the pointer to the picture data.
1876  *****************************************************************************/
1877 static int DirectXLockSurface( vout_thread_t *p_vout, picture_t *p_pic )
1878 {
1879     HRESULT dxresult;
1880
1881     /* Lock the surface to get a valid pointer to the picture buffer */
1882     memset( &p_pic->p_sys->ddsd, 0, sizeof( DDSURFACEDESC ));
1883     p_pic->p_sys->ddsd.dwSize = sizeof(DDSURFACEDESC);
1884     dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface,
1885                                          NULL, &p_pic->p_sys->ddsd,
1886                                          DDLOCK_NOSYSLOCK | DDLOCK_WAIT,
1887                                          NULL );
1888     if( dxresult != DD_OK )
1889     {
1890         if( dxresult == DDERR_INVALIDPARAMS )
1891         {
1892             /* DirectX 3 doesn't support the DDLOCK_NOSYSLOCK flag, resulting
1893              * in an invalid params error */
1894             dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface, NULL,
1895                                              &p_pic->p_sys->ddsd,
1896                                              DDLOCK_WAIT, NULL);
1897         }
1898         if( dxresult == DDERR_SURFACELOST )
1899         {
1900             /* Your surface can be lost so be sure
1901              * to check this and restore it if needed */
1902
1903             /* When using overlays with back-buffers, we need to restore
1904              * the front buffer so the back-buffers get restored as well. */
1905             if( p_vout->p_sys->b_using_overlay  )
1906                 IDirectDrawSurface2_Restore( p_pic->p_sys->p_front_surface );
1907             else
1908                 IDirectDrawSurface2_Restore( p_pic->p_sys->p_surface );
1909
1910             dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface, NULL,
1911                                                  &p_pic->p_sys->ddsd,
1912                                                  DDLOCK_WAIT, NULL);
1913 #if 0
1914             if( dxresult == DDERR_SURFACELOST )
1915                 msg_Dbg( p_vout, "DirectXLockSurface: DDERR_SURFACELOST" );
1916 #endif
1917         }
1918         if( dxresult != DD_OK )
1919         {
1920             return VLC_EGENERIC;
1921         }
1922     }
1923
1924     /* Now we have a pointer to the surface memory, we can update our picture
1925      * structure. */
1926     if( UpdatePictureStruct( p_vout, p_pic, p_vout->output.i_chroma )
1927         != VLC_SUCCESS )
1928     {
1929         DirectXUnlockSurface( p_vout, p_pic );
1930         return VLC_EGENERIC;
1931     }
1932     else
1933         return VLC_SUCCESS;
1934 }
1935
1936 /*****************************************************************************
1937  * DirectXUnlockSurface: Unlock a surface locked by DirectXLockSurface().
1938  *****************************************************************************/
1939 static int DirectXUnlockSurface( vout_thread_t *p_vout, picture_t *p_pic )
1940 {
1941     /* Unlock the Surface */
1942     if( IDirectDrawSurface2_Unlock( p_pic->p_sys->p_surface, NULL ) == DD_OK )
1943         return VLC_SUCCESS;
1944     else
1945         return VLC_EGENERIC;
1946 }
1947
1948 /*****************************************************************************
1949  * DirectXFindColorkey: Finds out the 32bits RGB pixel value of the colorkey
1950  *****************************************************************************/
1951 static DWORD DirectXFindColorkey( vout_thread_t *p_vout, uint32_t *pi_color )
1952 {
1953     DDSURFACEDESC ddsd;
1954     HRESULT dxresult;
1955     COLORREF i_rgb = 0;
1956     uint32_t i_pixel_backup;
1957     HDC hdc;
1958
1959     ddsd.dwSize = sizeof(ddsd);
1960     dxresult = IDirectDrawSurface2_Lock( p_vout->p_sys->p_display, NULL,
1961                                          &ddsd, DDLOCK_WAIT, NULL );
1962     if( dxresult != DD_OK ) return 0;
1963
1964     i_pixel_backup = *(uint32_t *)ddsd.lpSurface;
1965
1966     switch( ddsd.ddpfPixelFormat.dwRGBBitCount )
1967     {
1968     case 4:
1969         *(uint8_t *)ddsd.lpSurface = *pi_color | (*pi_color << 4);
1970         break;
1971     case 8:
1972         *(uint8_t *)ddsd.lpSurface = *pi_color;
1973         break;
1974     case 15:
1975     case 16:
1976         *(uint16_t *)ddsd.lpSurface = *pi_color;
1977         break;
1978     case 24:
1979         /* Seems to be problematic so we'll just put black as the colorkey */
1980         *pi_color = 0;
1981     default:
1982         *(uint32_t *)ddsd.lpSurface = *pi_color;
1983         break;
1984     }
1985
1986     IDirectDrawSurface2_Unlock( p_vout->p_sys->p_display, NULL );
1987
1988     if( IDirectDrawSurface2_GetDC( p_vout->p_sys->p_display, &hdc ) == DD_OK )
1989     {
1990         i_rgb = GetPixel( hdc, 0, 0 );
1991         IDirectDrawSurface2_ReleaseDC( p_vout->p_sys->p_display, hdc );
1992     }
1993
1994     ddsd.dwSize = sizeof(ddsd);
1995     dxresult = IDirectDrawSurface2_Lock( p_vout->p_sys->p_display, NULL,
1996                                          &ddsd, DDLOCK_WAIT, NULL );
1997     if( dxresult != DD_OK ) return i_rgb;
1998
1999     *(uint32_t *)ddsd.lpSurface = i_pixel_backup;
2000
2001     IDirectDrawSurface2_Unlock( p_vout->p_sys->p_display, NULL );
2002
2003     return i_rgb;
2004 }
2005
2006 /*****************************************************************************
2007  * A few toolbox functions
2008  *****************************************************************************/
2009 void SwitchWallpaperMode( vout_thread_t *p_vout, bool b_on )
2010 {
2011     HWND hwnd;
2012
2013     if( p_vout->p_sys->b_wallpaper == b_on ) return; /* Nothing to do */
2014
2015     hwnd = FindWindow( _T("Progman"), NULL );
2016     if( hwnd ) hwnd = FindWindowEx( hwnd, NULL, _T("SHELLDLL_DefView"), NULL );
2017     if( hwnd ) hwnd = FindWindowEx( hwnd, NULL, _T("SysListView32"), NULL );
2018     if( !hwnd )
2019     {
2020         msg_Warn( p_vout, "couldn't find \"SysListView32\" window, "
2021                   "wallpaper mode not supported" );
2022         return;
2023     }
2024
2025     p_vout->p_sys->b_wallpaper = b_on;
2026
2027     msg_Dbg( p_vout, "wallpaper mode %s", b_on ? "enabled" : "disabled" );
2028
2029     if( p_vout->p_sys->b_wallpaper )
2030     {
2031         p_vout->p_sys->color_bkg = ListView_GetBkColor( hwnd );
2032         p_vout->p_sys->color_bkgtxt = ListView_GetTextBkColor( hwnd );
2033
2034         ListView_SetBkColor( hwnd, p_vout->p_sys->i_rgb_colorkey );
2035         ListView_SetTextBkColor( hwnd, p_vout->p_sys->i_rgb_colorkey );
2036     }
2037     else if( hwnd )
2038     {
2039         ListView_SetBkColor( hwnd, p_vout->p_sys->color_bkg );
2040         ListView_SetTextBkColor( hwnd, p_vout->p_sys->color_bkgtxt );
2041     }
2042
2043     /* Update desktop */
2044     InvalidateRect( hwnd, NULL, TRUE );
2045     UpdateWindow( hwnd );
2046 }
2047
2048 /*****************************************************************************
2049  * config variable callback
2050  *****************************************************************************/
2051 BOOL WINAPI DirectXEnumCallback2( GUID* p_guid, LPTSTR psz_desc,
2052                                   LPTSTR psz_drivername, VOID* p_context,
2053                                   HMONITOR hmon )
2054 {
2055     module_config_t *p_item = (module_config_t *)p_context;
2056
2057     p_item->ppsz_list =
2058         (char **)realloc( p_item->ppsz_list,
2059                           (p_item->i_list+2) * sizeof(char *) );
2060     p_item->ppsz_list_text =
2061         (char **)realloc( p_item->ppsz_list_text,
2062                           (p_item->i_list+2) * sizeof(char *) );
2063
2064     p_item->ppsz_list[p_item->i_list] = strdup( psz_drivername );
2065     p_item->ppsz_list_text[p_item->i_list] = NULL;
2066     p_item->i_list++;
2067     p_item->ppsz_list[p_item->i_list] = NULL;
2068     p_item->ppsz_list_text[p_item->i_list] = NULL;
2069
2070     return TRUE; /* Keep enumerating */
2071 }
2072
2073 static int FindDevicesCallback( vlc_object_t *p_this, char const *psz_name,
2074                                vlc_value_t newval, vlc_value_t oldval, void *d)
2075 {
2076     HRESULT (WINAPI *OurDirectDrawEnumerateEx)( LPDDENUMCALLBACKEXA, LPVOID,
2077                                                 DWORD );
2078     HINSTANCE hddraw_dll;
2079
2080     module_config_t *p_item;
2081     int i;
2082
2083     p_item = config_FindConfig( p_this, psz_name );
2084     if( !p_item ) return VLC_SUCCESS;
2085
2086     /* Clear-up the current list */
2087     if( p_item->i_list )
2088     {
2089         /* Keep the first entry */
2090         for( i = 1; i < p_item->i_list; i++ )
2091         {
2092             free( p_item->ppsz_list[i] );
2093             free( p_item->ppsz_list_text[i] );
2094         }
2095         /* TODO: Remove when no more needed */
2096         p_item->ppsz_list[i] = NULL;
2097         p_item->ppsz_list_text[i] = NULL;
2098     }
2099     p_item->i_list = 1;
2100
2101     /* Load direct draw DLL */
2102     hddraw_dll = LoadLibrary(_T("DDRAW.DLL"));
2103     if( hddraw_dll == NULL ) return VLC_SUCCESS;
2104
2105     OurDirectDrawEnumerateEx =
2106 #ifndef UNICODE
2107       (void *)GetProcAddress( hddraw_dll, "DirectDrawEnumerateExA" );
2108 #else
2109       (void *)GetProcAddress( hddraw_dll, _T("DirectDrawEnumerateExW") );
2110 #endif
2111
2112     if( OurDirectDrawEnumerateEx )
2113     {
2114         /* Enumerate displays */
2115         OurDirectDrawEnumerateEx( DirectXEnumCallback2, p_item,
2116                                   DDENUM_ATTACHEDSECONDARYDEVICES );
2117     }
2118
2119     FreeLibrary( hddraw_dll );
2120
2121     /* Signal change to the interface */
2122     p_item->b_dirty = true;
2123
2124     return VLC_SUCCESS;
2125 }
2126
2127 static int WallpaperCallback( vlc_object_t *p_this, char const *psz_cmd,
2128                               vlc_value_t oldval, vlc_value_t newval,
2129                               void *p_data )
2130 {
2131     vout_thread_t *p_vout = (vout_thread_t *)p_this;
2132
2133     if( (newval.b_bool && !p_vout->p_sys->b_wallpaper) ||
2134         (!newval.b_bool && p_vout->p_sys->b_wallpaper) )
2135     {
2136         playlist_t *p_playlist = pl_Hold( p_vout );
2137
2138         if( p_playlist )
2139         {
2140             /* Modify playlist as well because the vout might have to be
2141              * restarted */
2142             var_Create( p_playlist, "directx-wallpaper", VLC_VAR_BOOL );
2143             var_Set( p_playlist, "directx-wallpaper", newval );
2144             pl_Release( p_vout );
2145         }
2146
2147         p_vout->p_sys->i_changes |= DX_WALLPAPER_CHANGE;
2148     }
2149
2150     return VLC_SUCCESS;
2151 }
2152
2153 /*****************************************************************************
2154  * SetPalette: sets an 8 bpp palette
2155  *****************************************************************************/
2156 static void SetPalette( vout_thread_t *p_vout,
2157                         uint16_t *red, uint16_t *green, uint16_t *blue )
2158 {
2159     msg_Err( p_vout, "FIXME: SetPalette unimplemented" );
2160 }