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

   1 /*****************************************************************************
   2  * directx.c: Windows DirectDraw video output
   3  *****************************************************************************
   4  * Copyright (C) 2001-2009 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
  38 #include <errno.h>                                                 /* ENOMEM */
  39
  40 #ifdef HAVE_CONFIG_H
  41 # include "config.h"
  42 #endif
  43
  44 #include <vlc_common.h>
  45 #include <vlc_plugin.h>
  46 #include <vlc_vout.h>
  47 #include <vlc_playlist.h>   /* needed for wallpaper */
  48
  49 #include <ddraw.h>
  50 #include <commctrl.h>       /* ListView_(Get|Set)* */
  51
  52 #ifndef UNDER_CE
  53 #   include <multimon.h>
  54 #endif
  55 #undef GetSystemMetrics
  56
  57 #ifndef MONITOR_DEFAULTTONEAREST
  58 #   define MONITOR_DEFAULTTONEAREST 2
  59 #endif
  60
  61 #include "vout.h"
  62
  63 /*****************************************************************************
  64  * picture_sys_t: direct buffer method descriptor
  65  *****************************************************************************
  66  * This structure is part of the picture descriptor, it describes the
  67  * DirectX specific properties of a direct buffer.
  68  *****************************************************************************/
  69 struct picture_sys_t
  70 {
  71     LPDIRECTDRAWSURFACE2 p_surface;
  72     LPDIRECTDRAWSURFACE2 p_front_surface;
  73     DDSURFACEDESC        ddsd;
  74 };
  75
  76 /*****************************************************************************
  77  * DirectDraw GUIDs.
  78  * Defining them here allows us to get rid of the dxguid library during
  79  * the linking stage.
  80  *****************************************************************************/
  81 #include <initguid.h>
  82 #undef GUID_EXT
  83 #define GUID_EXT
  84 DEFINE_GUID( IID_IDirectDraw2, 0xB3A6F3E0,0x2B43,0x11CF,0xA2,0xDE,0x00,0xAA,0x00,0xB9,0x33,0x56 );
  85 DEFINE_GUID( IID_IDirectDrawSurface2, 0x57805885,0x6eec,0x11cf,0x94,0x41,0xa8,0x23,0x03,0xc1,0x0e,0x27 );
  86
  87 /*****************************************************************************
  88  * Local prototypes.
  89  *****************************************************************************/
  90 static int  OpenVideo  ( vlc_object_t * );
  91 static void CloseVideo ( vlc_object_t * );
  92
  93 static int  Init      ( vout_thread_t * );
  94 static void End       ( vout_thread_t * );
  95 static int  Manage    ( vout_thread_t * );
  96 static void Display   ( vout_thread_t *, picture_t * );
  97 static void FirstDisplay( vout_thread_t *, picture_t * );
  98 static void SetPalette( vout_thread_t *, uint16_t *, uint16_t *, uint16_t * );
  99
 100 static int  NewPictureVec  ( vout_thread_t *, picture_t * );
 101 static void FreePictureVec ( vout_thread_t *, picture_t *, int );
 102 static int  UpdatePictureStruct( vout_thread_t *, picture_t * );
 103
 104 static int  DirectXInitDDraw      ( vout_thread_t *p_vout );
 105 static void DirectXCloseDDraw     ( vout_thread_t *p_vout );
 106 static int  DirectXCreateDisplay  ( vout_thread_t *p_vout );
 107 static void DirectXCloseDisplay   ( vout_thread_t *p_vout );
 108 static int  DirectXCreateSurface  ( vout_thread_t *p_vout,
 109                                     LPDIRECTDRAWSURFACE2 *, int, int, int );
 110 static void DirectXCloseSurface   ( vout_thread_t *p_vout,
 111                                     LPDIRECTDRAWSURFACE2 );
 112 static int  DirectXCreateClipper  ( vout_thread_t *p_vout );
 113 static void DirectXGetDDrawCaps   ( vout_thread_t *p_vout );
 114 static int  DirectXLockSurface    ( vout_thread_t *p_vout, picture_t *p_pic );
 115 static int  DirectXUnlockSurface  ( vout_thread_t *p_vout, picture_t *p_pic );
 116
 117 static DWORD DirectXFindColorkey( vout_thread_t *p_vout, uint32_t *i_color );
 118
 119 void SwitchWallpaperMode( vout_thread_t *, bool );
 120
 121 /* Object variables callbacks */
 122 static int FindDevicesCallback( vlc_object_t *, char const *,
 123                                 vlc_value_t, vlc_value_t, void * );
 124 static int WallpaperCallback( vlc_object_t *, char const *,
 125                               vlc_value_t, vlc_value_t, void * );
 126
 127 BOOL WINAPI DirectXEnumCallback( GUID* p_guid, LPTSTR psz_desc,
 128                                  LPTSTR psz_drivername, VOID* p_context,
 129                                  HMONITOR hmon );
 130
 131 BOOL WINAPI DirectXEnumCallback2( GUID* p_guid, LPTSTR psz_desc,
 132                                   LPTSTR psz_drivername, VOID* p_context,
 133                                   HMONITOR hmon );
 134
 135 /*****************************************************************************
 136  * Module descriptor
 137  *****************************************************************************/
 138 #define HW_YUV_TEXT N_("Use hardware YUV->RGB conversions")
 139 #define HW_YUV_LONGTEXT N_( \
 140     "Try to use hardware acceleration for YUV->RGB conversions. " \
 141     "This option doesn't have any effect when using overlays." )
 142
 143 #define SYSMEM_TEXT N_("Use video buffers in system memory")
 144 #define SYSMEM_LONGTEXT N_( \
 145     "Create video buffers in system memory instead of video memory. This " \
 146     "isn't recommended as usually using video memory allows to benefit from " \
 147     "more hardware acceleration (like rescaling or YUV->RGB conversions). " \
 148     "This option doesn't have any effect when using overlays." )
 149
 150 #define TRIPLEBUF_TEXT N_("Use triple buffering for overlays")
 151 #define TRIPLEBUF_LONGTEXT N_( \
 152     "Try to use triple buffering when using YUV overlays. That results in " \
 153     "much better video quality (no flickering)." )
 154
 155 #define DEVICE_TEXT N_("Name of desired display device")
 156 #define DEVICE_LONGTEXT N_("In a multiple monitor configuration, you can " \
 157     "specify the Windows device name of the display that you want the video " \
 158     "window to open on. For example, \"\\\\.\\DISPLAY1\" or " \
 159     "\"\\\\.\\DISPLAY2\"." )
 160
 161 #define WALLPAPER_TEXT N_("Enable wallpaper mode ")
 162 #define WALLPAPER_LONGTEXT N_( \
 163     "The wallpaper mode allows you to display the video as the desktop " \
 164     "background. Note that this feature only works in overlay mode and " \
 165     "the desktop must not already have a wallpaper." )
 166
 167 static const char *const ppsz_dev[] = { "" };
 168 static const char *const ppsz_dev_text[] = { N_("Default") };
 169
 170 vlc_module_begin ()
 171     set_shortname( "DirectX" )
 172     set_category( CAT_VIDEO )
 173     set_subcategory( SUBCAT_VIDEO_VOUT )
 174     add_bool( "directx-hw-yuv", true, NULL, HW_YUV_TEXT, HW_YUV_LONGTEXT,
 175               true )
 176     add_bool( "directx-use-sysmem", false, NULL, SYSMEM_TEXT, SYSMEM_LONGTEXT,
 177               true )
 178     add_bool( "directx-3buffering", true, NULL, TRIPLEBUF_TEXT,
 179               TRIPLEBUF_LONGTEXT, true )
 180
 181     add_string( "directx-device", "", NULL, DEVICE_TEXT, DEVICE_LONGTEXT,
 182                 true )
 183         change_string_list( ppsz_dev, ppsz_dev_text, FindDevicesCallback )
 184         change_action_add( FindDevicesCallback, N_("Refresh list") )
 185
 186     add_bool( "directx-wallpaper", false, NULL, WALLPAPER_TEXT, WALLPAPER_LONGTEXT,
 187               true )
 188
 189     set_description( N_("DirectX (DirectDraw) video output") )
 190     set_capability( "video output", 100 )
 191     add_shortcut( "directx" )
 192     set_callbacks( OpenVideo, CloseVideo )
 193
 194     /* FIXME: Hack to avoid unregistering our window class */
 195     linked_with_a_crap_library_which_uses_atexit ()
 196 vlc_module_end ()
 197
 198 #if 0 /* FIXME */
 199     /* check if we registered a window class because we need to
 200      * unregister it */
 201     WNDCLASS wndclass;
 202     if( GetClassInfo( GetModuleHandle(NULL), "VLC DirectX", &wndclass ) )
 203         UnregisterClass( "VLC DirectX", GetModuleHandle(NULL) );
 204 #endif
 205
 206 /*****************************************************************************
 207  * OpenVideo: allocate DirectX video thread output method
 208  *****************************************************************************
 209  * This function allocates and initialize the DirectX vout method.
 210  *****************************************************************************/
 211 static int OpenVideo( vlc_object_t *p_this )
 212 {
 213     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 214     vlc_value_t val;
 215     HMODULE huser32;
 216
 217     /* Allocate structure */
 218     p_vout->p_sys = calloc( 1, sizeof( vout_sys_t ) );
 219     if( p_vout->p_sys == NULL )
 220         return VLC_ENOMEM;
 221
 222     /* Initialisations */
 223     p_vout->pf_init = Init;
 224     p_vout->pf_end = End;
 225     p_vout->pf_manage = Manage;
 226     p_vout->pf_render = NULL;
 227     p_vout->pf_display = FirstDisplay;
 228
 229     p_vout->p_sys->p_ddobject = NULL;
 230     p_vout->p_sys->p_display = NULL;
 231     p_vout->p_sys->p_current_surface = NULL;
 232     p_vout->p_sys->p_clipper = NULL;
 233     p_vout->p_sys->hwnd = p_vout->p_sys->hvideownd = NULL;
 234     p_vout->p_sys->hparent = p_vout->p_sys->hfswnd = NULL;
 235     p_vout->p_sys->i_changes = 0;
 236     p_vout->p_sys->b_wallpaper = 0;
 237     vlc_mutex_init( &p_vout->p_sys->lock );
 238     SetRectEmpty( &p_vout->p_sys->rect_display );
 239     SetRectEmpty( &p_vout->p_sys->rect_parent );
 240
 241     /* Multimonitor stuff */
 242     p_vout->p_sys->hmonitor = NULL;
 243     p_vout->p_sys->p_display_driver = NULL;
 244     p_vout->p_sys->MonitorFromWindow = NULL;
 245     p_vout->p_sys->GetMonitorInfo = NULL;
 246     if( (huser32 = GetModuleHandle( _T("USER32") ) ) )
 247     {
 248         p_vout->p_sys->MonitorFromWindow = (HMONITOR (WINAPI *)( HWND, DWORD ))
 249             GetProcAddress( huser32, _T("MonitorFromWindow") );
 250         p_vout->p_sys->GetMonitorInfo =
 251             GetProcAddress( huser32, _T("GetMonitorInfoW") );
 252     }
 253
 254     var_Create( p_vout, "overlay", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 255     var_Create( p_vout, "directx-use-sysmem", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 256     var_Create( p_vout, "directx-hw-yuv", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 257     var_Create( p_vout, "directx-3buffering", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 258     var_Create( p_vout, "directx-device", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 259     var_Create( p_vout, "video-title", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 260     var_Create( p_vout, "disable-screensaver", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 261
 262     p_vout->p_sys->b_cursor_hidden = 0;
 263     p_vout->p_sys->i_lastmoved = mdate();
 264     p_vout->p_sys->i_mouse_hide_timeout =
 265         var_GetInteger(p_vout, "mouse-hide-timeout") * 1000;
 266
 267     /* Set main window's size */
 268     p_vout->p_sys->i_window_width = p_vout->i_window_width;
 269     p_vout->p_sys->i_window_height = p_vout->i_window_height;
 270
 271     if ( !CreateEventThread( p_vout ) )
 272         goto error;
 273
 274     /* Initialise DirectDraw */
 275     if( DirectXInitDDraw( p_vout ) )
 276     {
 277         msg_Err( p_vout, "cannot initialize DirectX DirectDraw" );
 278         goto error;
 279     }
 280
 281     /* Create the directx display */
 282     if( DirectXCreateDisplay( p_vout ) )
 283     {
 284         msg_Err( p_vout, "cannot initialize DirectX DirectDraw" );
 285         goto error;
 286     }
 287
 288     /* Variable to indicate if the window should be on top of others */
 289     /* Trigger a callback right now */
 290     var_TriggerCallback( p_vout, "video-on-top" );
 291
 292     /* Variable to indicate if the window should be on top of others */
 293     /* Trigger a callback right now */
 294     var_Create( p_vout, "directx-wallpaper", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 295     val.psz_string = _("Wallpaper");
 296     var_Change( p_vout, "directx-wallpaper", VLC_VAR_SETTEXT, &val, NULL );
 297     var_AddCallback( p_vout, "directx-wallpaper", WallpaperCallback, NULL );
 298     var_TriggerCallback( p_vout, "directx-wallpaper" );
 299
 300     DisableScreensaver ( p_vout );
 301
 302     return VLC_SUCCESS;
 303
 304  error:
 305     CloseVideo( VLC_OBJECT(p_vout) );
 306     return VLC_EGENERIC;
 307 }
 308
 309 /*****************************************************************************
 310  * Init: initialize DirectX video thread output method
 311  *****************************************************************************
 312  * This function create the directx surfaces needed by the output thread.
 313  * It is called at the beginning of the thread.
 314  *****************************************************************************/
 315 static int Init( vout_thread_t *p_vout )
 316 {
 317     int i_chroma_backup;
 318
 319     /* Get a few default parameters */
 320     p_vout->p_sys->b_using_overlay = var_GetBool( p_vout, "overlay" );
 321     p_vout->p_sys->b_use_sysmem = var_GetBool( p_vout, "directx-use-sysmem" );
 322     p_vout->p_sys->b_hw_yuv = var_GetBool( p_vout, "directx-hw-yuv" );
 323     p_vout->p_sys->b_3buf_overlay = var_GetBool( p_vout, "directx-3buffering" );
 324
 325     /* Initialise DirectDraw if not already done.
 326      * We do this here because on multi-monitor systems we may have to
 327      * re-create the directdraw surfaces. */
 328     if( !p_vout->p_sys->p_ddobject &&
 329         DirectXInitDDraw( p_vout ) != VLC_SUCCESS )
 330     {
 331         msg_Err( p_vout, "cannot initialize DirectDraw" );
 332         return VLC_EGENERIC;
 333     }
 334
 335     /* Create the directx display */
 336     if( !p_vout->p_sys->p_display &&
 337         DirectXCreateDisplay( p_vout ) != VLC_SUCCESS )
 338     {
 339         msg_Err( p_vout, "cannot initialize DirectDraw" );
 340         return VLC_EGENERIC;
 341     }
 342
 343     /* Initialize the output structure.
 344      * Since DirectDraw can do rescaling for us, stick to the default
 345      * coordinates and aspect. */
 346     p_vout->output.i_width  = p_vout->render.i_width;
 347     p_vout->output.i_height = p_vout->render.i_height;
 348     p_vout->output.i_aspect = p_vout->render.i_aspect;
 349     p_vout->fmt_out = p_vout->fmt_in;
 350     UpdateRects( p_vout, true );
 351
 352 #define MAX_DIRECTBUFFERS 1
 353     /* Right now we use only 1 directbuffer because we don't want the
 354      * video decoder to decode directly into direct buffers as they are
 355      * created into video memory and video memory is _really_ slow */
 356
 357     /* Choose the chroma we will try first. */
 358     switch( p_vout->render.i_chroma )
 359     {
 360         case VLC_CODEC_YUYV:
 361             p_vout->output.i_chroma = VLC_CODEC_YUYV;
 362             break;
 363         case VLC_CODEC_UYVY:
 364             p_vout->output.i_chroma = VLC_CODEC_UYVY;
 365             break;
 366         case VLC_CODEC_YVYU:
 367             p_vout->output.i_chroma = VLC_CODEC_YVYU;
 368             break;
 369         default:
 370             p_vout->output.i_chroma = VLC_CODEC_YV12;
 371             break;
 372     }
 373
 374     NewPictureVec( p_vout, p_vout->p_picture );
 375
 376     i_chroma_backup = p_vout->output.i_chroma;
 377
 378     if( !I_OUTPUTPICTURES )
 379     {
 380         /* hmmm, it didn't work! Let's try commonly supported chromas */
 381         if( p_vout->output.i_chroma != VLC_CODEC_I420 )
 382         {
 383             p_vout->output.i_chroma = VLC_CODEC_YV12;
 384             NewPictureVec( p_vout, p_vout->p_picture );
 385         }
 386         if( !I_OUTPUTPICTURES )
 387         {
 388             /* hmmm, it still didn't work! Let's try another one */
 389             p_vout->output.i_chroma = VLC_CODEC_YUYV;
 390             NewPictureVec( p_vout, p_vout->p_picture );
 391         }
 392     }
 393
 394     if( !I_OUTPUTPICTURES )
 395     {
 396         /* If it still didn't work then don't try to use an overlay */
 397         p_vout->output.i_chroma = i_chroma_backup;
 398         p_vout->p_sys->b_using_overlay = 0;
 399         msg_Warn( p_vout, "Could not initialize directx overlay" ) ;
 400         NewPictureVec( p_vout, p_vout->p_picture );
 401     }
 402
 403     /* Change the window title bar text */
 404     PostMessage( p_vout->p_sys->hwnd, WM_VLC_CHANGE_TEXT, 0, 0 );
 405
 406     p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
 407     return VLC_SUCCESS;
 408 }
 409
 410 /*****************************************************************************
 411  * End: terminate Sys video thread output method
 412  *****************************************************************************
 413  * Terminate an output method created by Create.
 414  * It is called at the end of the thread.
 415  *****************************************************************************/
 416 static void End( vout_thread_t *p_vout )
 417 {
 418     FreePictureVec( p_vout, p_vout->p_picture, I_OUTPUTPICTURES );
 419
 420     DirectXCloseDisplay( p_vout );
 421     DirectXCloseDDraw( p_vout );
 422
 423     return;
 424 }
 425
 426 /*****************************************************************************
 427  * CloseVideo: destroy Sys video thread output method
 428  *****************************************************************************
 429  * Terminate an output method created by Create
 430  *****************************************************************************/
 431 static void CloseVideo( vlc_object_t *p_this )
 432 {
 433     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 434
 435     StopEventThread( p_vout );
 436
 437     /* Make sure the wallpaper is restored */
 438     var_DelCallback( p_vout, "directx-wallpaper", WallpaperCallback, NULL );
 439     SwitchWallpaperMode( p_vout, false );
 440
 441     RestoreScreensaver( p_vout );
 442
 443     free( p_vout->p_sys );
 444 }
 445
 446 /*****************************************************************************
 447  * Manage: handle Sys events
 448  *****************************************************************************
 449  * This function should be called regularly by the video output thread.
 450  * It returns a non null value if an error occurred.
 451  *****************************************************************************/
 452 static int Manage( vout_thread_t *p_vout )
 453 {
 454     /* If we do not control our window, we check for geometry changes
 455      * ourselves because the parent might not send us its events. */
 456     vlc_mutex_lock( &p_vout->p_sys->lock );
 457     if( p_vout->p_sys->hparent && !p_vout->b_fullscreen )
 458     {
 459         RECT rect_parent;
 460         POINT point;
 461
 462         vlc_mutex_unlock( &p_vout->p_sys->lock );
 463
 464         GetClientRect( p_vout->p_sys->hparent, &rect_parent );
 465         point.x = point.y = 0;
 466         ClientToScreen( p_vout->p_sys->hparent, &point );
 467         OffsetRect( &rect_parent, point.x, point.y );
 468
 469         if( !EqualRect( &rect_parent, &p_vout->p_sys->rect_parent ) )
 470         {
 471             p_vout->p_sys->rect_parent = rect_parent;
 472
 473             /* This one is to force the update even if only
 474              * the position has changed */
 475             SetWindowPos( p_vout->p_sys->hwnd, 0, 1, 1,
 476                           rect_parent.right - rect_parent.left,
 477                           rect_parent.bottom - rect_parent.top, 0 );
 478
 479             SetWindowPos( p_vout->p_sys->hwnd, 0, 0, 0,
 480                           rect_parent.right - rect_parent.left,
 481                           rect_parent.bottom - rect_parent.top, 0 );
 482         }
 483     }
 484     else
 485     {
 486         vlc_mutex_unlock( &p_vout->p_sys->lock );
 487     }
 488
 489     /*
 490      * Position Change
 491      */
 492     if( p_vout->p_sys->i_changes & DX_POSITION_CHANGE )
 493     {
 494         p_vout->p_sys->i_changes &= ~DX_POSITION_CHANGE;
 495
 496         /* Check if we are still on the same monitor */
 497         if( p_vout->p_sys->MonitorFromWindow &&
 498             p_vout->p_sys->hmonitor !=
 499                 p_vout->p_sys->MonitorFromWindow( p_vout->p_sys->hwnd,
 500                                                   MONITOR_DEFAULTTONEAREST ) )
 501         {
 502             /* This will force the vout core to recreate the picture buffers */
 503             p_vout->i_changes |= VOUT_PICTURE_BUFFERS_CHANGE;
 504         }
 505     }
 506
 507     /* autoscale toggle */
 508     if( p_vout->i_changes & VOUT_SCALE_CHANGE )
 509     {
 510         p_vout->i_changes &= ~VOUT_SCALE_CHANGE;
 511
 512         p_vout->b_autoscale = var_GetBool( p_vout, "autoscale" );
 513         p_vout->i_zoom = (int) ZOOM_FP_FACTOR;
 514
 515         UpdateRects( p_vout, true );
 516     }
 517
 518     /* scaling factor */
 519     if( p_vout->i_changes & VOUT_ZOOM_CHANGE )
 520     {
 521         p_vout->i_changes &= ~VOUT_ZOOM_CHANGE;
 522
 523         p_vout->b_autoscale = false;
 524         p_vout->i_zoom =
 525             (int)( ZOOM_FP_FACTOR * var_GetFloat( p_vout, "scale" ) );
 526         UpdateRects( p_vout, true );
 527     }
 528
 529     /* Check for cropping / aspect changes */
 530     if( p_vout->i_changes & VOUT_CROP_CHANGE ||
 531         p_vout->i_changes & VOUT_ASPECT_CHANGE )
 532     {
 533         p_vout->i_changes &= ~VOUT_CROP_CHANGE;
 534         p_vout->i_changes &= ~VOUT_ASPECT_CHANGE;
 535
 536         p_vout->fmt_out.i_x_offset = p_vout->fmt_in.i_x_offset;
 537         p_vout->fmt_out.i_y_offset = p_vout->fmt_in.i_y_offset;
 538         p_vout->fmt_out.i_visible_width = p_vout->fmt_in.i_visible_width;
 539         p_vout->fmt_out.i_visible_height = p_vout->fmt_in.i_visible_height;
 540         p_vout->fmt_out.i_aspect = p_vout->fmt_in.i_aspect;
 541         p_vout->fmt_out.i_sar_num = p_vout->fmt_in.i_sar_num;
 542         p_vout->fmt_out.i_sar_den = p_vout->fmt_in.i_sar_den;
 543         p_vout->output.i_aspect = p_vout->fmt_in.i_aspect;
 544         UpdateRects( p_vout, true );
 545     }
 546
 547     /* We used to call the Win32 PeekMessage function here to read the window
 548      * messages. But since window can stay blocked into this function for a
 549      * long time (for example when you move your window on the screen), I
 550      * decided to isolate PeekMessage in another thread. */
 551
 552     if( p_vout->p_sys->i_changes & DX_WALLPAPER_CHANGE )
 553     {
 554         SwitchWallpaperMode( p_vout, !p_vout->p_sys->b_wallpaper );
 555         p_vout->p_sys->i_changes &= ~DX_WALLPAPER_CHANGE;
 556         DirectDrawUpdateOverlay( p_vout );
 557     }
 558
 559     /*
 560      * Fullscreen change
 561      */
 562     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE
 563         || p_vout->p_sys->i_changes & VOUT_FULLSCREEN_CHANGE )
 564     {
 565         Win32ToggleFullscreen( p_vout );
 566
 567         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 568         p_vout->p_sys->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 569     }
 570
 571     /*
 572      * Pointer change
 573      */
 574     if( p_vout->b_fullscreen && !p_vout->p_sys->b_cursor_hidden &&
 575         (mdate() - p_vout->p_sys->i_lastmoved) >
 576             p_vout->p_sys->i_mouse_hide_timeout )
 577     {
 578         POINT point;
 579         HWND hwnd;
 580
 581         /* Hide the cursor only if it is inside our window */
 582         GetCursorPos( &point );
 583         hwnd = WindowFromPoint(point);
 584         if( hwnd == p_vout->p_sys->hwnd || hwnd == p_vout->p_sys->hvideownd )
 585         {
 586             PostMessage( p_vout->p_sys->hwnd, WM_VLC_HIDE_MOUSE, 0, 0 );
 587         }
 588         else
 589         {
 590             p_vout->p_sys->i_lastmoved = mdate();
 591         }
 592     }
 593
 594     /*
 595      * "Always on top" status change
 596      */
 597     if( p_vout->p_sys->b_on_top_change )
 598     {
 599         vlc_value_t val;
 600         HMENU hMenu = GetSystemMenu( p_vout->p_sys->hwnd, FALSE );
 601
 602         var_Get( p_vout, "video-on-top", &val );
 603
 604         /* Set the window on top if necessary */
 605         if( val.b_bool && !( GetWindowLong( p_vout->p_sys->hwnd, GWL_EXSTYLE )
 606                            & WS_EX_TOPMOST ) )
 607         {
 608             CheckMenuItem( hMenu, IDM_TOGGLE_ON_TOP,
 609                            MF_BYCOMMAND | MFS_CHECKED );
 610             SetWindowPos( p_vout->p_sys->hwnd, HWND_TOPMOST, 0, 0, 0, 0,
 611                           SWP_NOSIZE | SWP_NOMOVE );
 612         }
 613         else
 614         /* The window shouldn't be on top */
 615         if( !val.b_bool && ( GetWindowLong( p_vout->p_sys->hwnd, GWL_EXSTYLE )
 616                            & WS_EX_TOPMOST ) )
 617         {
 618             CheckMenuItem( hMenu, IDM_TOGGLE_ON_TOP,
 619                            MF_BYCOMMAND | MFS_UNCHECKED );
 620             SetWindowPos( p_vout->p_sys->hwnd, HWND_NOTOPMOST, 0, 0, 0, 0,
 621                           SWP_NOSIZE | SWP_NOMOVE );
 622         }
 623
 624         p_vout->p_sys->b_on_top_change = false;
 625     }
 626
 627     /* Check if the event thread is still running */
 628     if( !vlc_object_alive (p_vout->p_sys->p_event) )
 629     {
 630         return VLC_EGENERIC; /* exit */
 631     }
 632
 633     return VLC_SUCCESS;
 634 }
 635
 636 /*****************************************************************************
 637  * Display: displays previously rendered output
 638  *****************************************************************************
 639  * This function sends the currently rendered image to the display, wait until
 640  * it is displayed and switch the two rendering buffers, preparing next frame.
 641  *****************************************************************************/
 642 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
 643 {
 644     HRESULT dxresult;
 645
 646     if( (p_vout->p_sys->p_display == NULL) )
 647     {
 648         msg_Warn( p_vout, "no display!" );
 649         return;
 650     }
 651
 652     /* Our surface can be lost so be sure to check this
 653      * and restore it if need be */
 654     if( IDirectDrawSurface2_IsLost( p_vout->p_sys->p_display )
 655         == DDERR_SURFACELOST )
 656     {
 657         if( IDirectDrawSurface2_Restore( p_vout->p_sys->p_display ) == DD_OK &&
 658             p_vout->p_sys->b_using_overlay )
 659             DirectDrawUpdateOverlay( p_vout );
 660     }
 661
 662     if( !p_vout->p_sys->b_using_overlay )
 663     {
 664         DDBLTFX  ddbltfx;
 665
 666         /* We ask for the "NOTEARING" option */
 667         memset( &ddbltfx, 0, sizeof(DDBLTFX) );
 668         ddbltfx.dwSize = sizeof(DDBLTFX);
 669         ddbltfx.dwDDFX = DDBLTFX_NOTEARING;
 670
 671         /* Blit video surface to display */
 672         dxresult = IDirectDrawSurface2_Blt( p_vout->p_sys->p_display,
 673                                             &p_vout->p_sys->rect_dest_clipped,
 674                                             p_pic->p_sys->p_surface,
 675                                             &p_vout->p_sys->rect_src_clipped,
 676                                             DDBLT_ASYNC, &ddbltfx );
 677         if( dxresult != DD_OK )
 678         {
 679             msg_Warn( p_vout, "could not blit surface (error %li)", dxresult );
 680             return;
 681         }
 682     }
 683     else /* using overlay */
 684     {
 685         /* Flip the overlay buffers if we are using back buffers */
 686         if( p_pic->p_sys->p_front_surface == p_pic->p_sys->p_surface )
 687         {
 688             return;
 689         }
 690
 691         dxresult = IDirectDrawSurface2_Flip( p_pic->p_sys->p_front_surface,
 692                                              NULL, DDFLIP_WAIT );
 693         if( dxresult != DD_OK )
 694         {
 695             msg_Warn( p_vout, "could not flip overlay (error %li)", dxresult );
 696         }
 697
 698         /* set currently displayed pic */
 699         p_vout->p_sys->p_current_surface = p_pic->p_sys->p_front_surface;
 700
 701         /* Lock surface to get all the required info */
 702         if( DirectXLockSurface( p_vout, p_pic ) )
 703         {
 704             /* AAARRGG */
 705             msg_Warn( p_vout, "cannot lock surface" );
 706             return;
 707         }
 708         DirectXUnlockSurface( p_vout, p_pic );
 709     }
 710 }
 711
 712 /*
 713 ** this function is only used once when the first picture is received
 714 ** this function will show the video window once video is ready for
 715 ** display.
 716 */
 717
 718 static void FirstDisplay( vout_thread_t *p_vout, picture_t *p_pic )
 719 {
 720     /* get initial picture rendered on overlay surface */
 721     Display(p_vout, p_pic);
 722
 723     IDirectDraw_WaitForVerticalBlank(p_vout->p_sys->p_ddobject,
 724             DDWAITVB_BLOCKBEGIN, NULL);
 725
 726     if( p_vout->p_sys->b_using_overlay )
 727     {
 728         HBRUSH brush = CreateSolidBrush( p_vout->p_sys->i_rgb_colorkey );
 729         /* set the colorkey as the backgound brush for the video window */
 730         SetClassLongPtr( p_vout->p_sys->hvideownd, GCLP_HBRBACKGROUND, (LONG_PTR)brush );
 731     }
 732     /*
 733     ** Video window is initially hidden, show it now since we got a
 734     ** picture to show.
 735     */
 736     SetWindowPos( p_vout->p_sys->hvideownd, NULL, 0, 0, 0, 0,
 737         SWP_ASYNCWINDOWPOS|
 738         SWP_FRAMECHANGED|
 739         SWP_SHOWWINDOW|
 740         SWP_NOMOVE|
 741         SWP_NOSIZE|
 742         SWP_NOZORDER );
 743
 744     /* use and restores proper display function for further pictures */
 745     p_vout->pf_display = Display;
 746 }
 747
 748 /* following functions are local */
 749
 750 /*****************************************************************************
 751  * DirectXEnumCallback: Device enumeration
 752  *****************************************************************************
 753  * This callback function is called by DirectDraw once for each
 754  * available DirectDraw device.
 755  *****************************************************************************/
 756 BOOL WINAPI DirectXEnumCallback( GUID* p_guid, LPTSTR psz_desc,
 757                                  LPTSTR psz_drivername, VOID* p_context,
 758                                  HMONITOR hmon )
 759 {
 760     vout_thread_t *p_vout = (vout_thread_t *)p_context;
 761     vlc_value_t device;
 762
 763     msg_Dbg( p_vout, "DirectXEnumCallback: %s, %s", psz_desc, psz_drivername );
 764
 765     if( hmon )
 766     {
 767         var_Get( p_vout, "directx-device", &device );
 768
 769         if( ( !device.psz_string || !*device.psz_string ) &&
 770             hmon == p_vout->p_sys->hmonitor )
 771         {
 772             free( device.psz_string );
 773         }
 774         else if( strcmp( psz_drivername, device.psz_string ) == 0 )
 775         {
 776             MONITORINFO monitor_info;
 777             monitor_info.cbSize = sizeof( MONITORINFO );
 778
 779             if( p_vout->p_sys->GetMonitorInfo( hmon, &monitor_info ) )
 780             {
 781                 RECT rect;
 782
 783                 /* Move window to the right screen */
 784                 GetWindowRect( p_vout->p_sys->hwnd, &rect );
 785                 if( !IntersectRect( &rect, &rect, &monitor_info.rcWork ) )
 786                 {
 787                     rect.left = monitor_info.rcWork.left;
 788                     rect.top = monitor_info.rcWork.top;
 789                     msg_Dbg( p_vout, "DirectXEnumCallback: setting window "
 790                              "position to %ld,%ld", rect.left, rect.top );
 791                     SetWindowPos( p_vout->p_sys->hwnd, NULL,
 792                                   rect.left, rect.top, 0, 0,
 793                                   SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 794                 }
 795             }
 796
 797             p_vout->p_sys->hmonitor = hmon;
 798             free( device.psz_string );
 799         }
 800         else
 801         {
 802             free( device.psz_string );
 803             return TRUE; /* Keep enumerating */
 804         }
 805
 806         msg_Dbg( p_vout, "selecting %s, %s", psz_desc, psz_drivername );
 807         p_vout->p_sys->p_display_driver = malloc( sizeof(GUID) );
 808         if( p_vout->p_sys->p_display_driver )
 809             memcpy( p_vout->p_sys->p_display_driver, p_guid, sizeof(GUID) );
 810     }
 811
 812     return TRUE; /* Keep enumerating */
 813 }
 814
 815 /*****************************************************************************
 816  * DirectXInitDDraw: Takes care of all the DirectDraw initialisations
 817  *****************************************************************************
 818  * This function initialise and allocate resources for DirectDraw.
 819  *****************************************************************************/
 820 static int DirectXInitDDraw( vout_thread_t *p_vout )
 821 {
 822     HRESULT dxresult;
 823     HRESULT (WINAPI *OurDirectDrawCreate)(GUID *,LPDIRECTDRAW *,IUnknown *);
 824     HRESULT (WINAPI *OurDirectDrawEnumerateEx)( LPDDENUMCALLBACKEXA, LPVOID,
 825                                                 DWORD );
 826     LPDIRECTDRAW p_ddobject;
 827
 828     msg_Dbg( p_vout, "DirectXInitDDraw" );
 829
 830     /* Load direct draw DLL */
 831     p_vout->p_sys->hddraw_dll = LoadLibrary(_T("DDRAW.DLL"));
 832     if( p_vout->p_sys->hddraw_dll == NULL )
 833     {
 834         msg_Warn( p_vout, "DirectXInitDDraw failed loading ddraw.dll" );
 835         goto error;
 836     }
 837
 838     OurDirectDrawCreate =
 839       (void *)GetProcAddress( p_vout->p_sys->hddraw_dll,
 840                               _T("DirectDrawCreate") );
 841     if( OurDirectDrawCreate == NULL )
 842     {
 843         msg_Err( p_vout, "DirectXInitDDraw failed GetProcAddress" );
 844         goto error;
 845     }
 846
 847     OurDirectDrawEnumerateEx =
 848       (void *)GetProcAddress( p_vout->p_sys->hddraw_dll,
 849                               _T("DirectDrawEnumerateExW") );
 850
 851     if( OurDirectDrawEnumerateEx && p_vout->p_sys->MonitorFromWindow )
 852     {
 853         vlc_value_t device;
 854
 855         var_Get( p_vout, "directx-device", &device );
 856         if( device.psz_string )
 857         {
 858             msg_Dbg( p_vout, "directx-device: %s", device.psz_string );
 859             free( device.psz_string );
 860         }
 861
 862         p_vout->p_sys->hmonitor =
 863             p_vout->p_sys->MonitorFromWindow( p_vout->p_sys->hwnd,
 864                                               MONITOR_DEFAULTTONEAREST );
 865
 866         /* Enumerate displays */
 867         OurDirectDrawEnumerateEx( DirectXEnumCallback, p_vout,
 868                                   DDENUM_ATTACHEDSECONDARYDEVICES );
 869     }
 870
 871     /* Initialize DirectDraw now */
 872     dxresult = OurDirectDrawCreate( p_vout->p_sys->p_display_driver,
 873                                     &p_ddobject, NULL );
 874     if( dxresult != DD_OK )
 875     {
 876         msg_Err( p_vout, "DirectXInitDDraw cannot initialize DDraw" );
 877         goto error;
 878     }
 879
 880     /* Get the IDirectDraw2 interface */
 881     dxresult = IDirectDraw_QueryInterface( p_ddobject, &IID_IDirectDraw2,
 882                                         &p_vout->p_sys->p_ddobject );
 883     /* Release the unused interface */
 884     IDirectDraw_Release( p_ddobject );
 885     if( dxresult != DD_OK )
 886     {
 887         msg_Err( p_vout, "cannot get IDirectDraw2 interface" );
 888         goto error;
 889     }
 890
 891     /* Set DirectDraw Cooperative level, ie what control we want over Windows
 892      * display */
 893     dxresult = IDirectDraw2_SetCooperativeLevel( p_vout->p_sys->p_ddobject,
 894                                                  NULL, DDSCL_NORMAL );
 895     if( dxresult != DD_OK )
 896     {
 897         msg_Err( p_vout, "cannot set direct draw cooperative level" );
 898         goto error;
 899     }
 900
 901     /* Get the size of the current display device */
 902     if( p_vout->p_sys->hmonitor && p_vout->p_sys->GetMonitorInfo )
 903     {
 904         MONITORINFO monitor_info;
 905         monitor_info.cbSize = sizeof( MONITORINFO );
 906         p_vout->p_sys->GetMonitorInfo( p_vout->p_sys->hmonitor,
 907                                        &monitor_info );
 908         p_vout->p_sys->rect_display = monitor_info.rcMonitor;
 909     }
 910     else
 911     {
 912         p_vout->p_sys->rect_display.left = 0;
 913         p_vout->p_sys->rect_display.top = 0;
 914         p_vout->p_sys->rect_display.right  = GetSystemMetrics(SM_CXSCREEN);
 915         p_vout->p_sys->rect_display.bottom = GetSystemMetrics(SM_CYSCREEN);
 916     }
 917
 918     msg_Dbg( p_vout, "screen dimensions (%lix%li,%lix%li)",
 919              p_vout->p_sys->rect_display.left,
 920              p_vout->p_sys->rect_display.top,
 921              p_vout->p_sys->rect_display.right,
 922              p_vout->p_sys->rect_display.bottom );
 923
 924     /* Probe the capabilities of the hardware */
 925     DirectXGetDDrawCaps( p_vout );
 926
 927     msg_Dbg( p_vout, "End DirectXInitDDraw" );
 928     return VLC_SUCCESS;
 929
 930  error:
 931     if( p_vout->p_sys->p_ddobject )
 932         IDirectDraw2_Release( p_vout->p_sys->p_ddobject );
 933     if( p_vout->p_sys->hddraw_dll )
 934         FreeLibrary( p_vout->p_sys->hddraw_dll );
 935     p_vout->p_sys->hddraw_dll = NULL;
 936     p_vout->p_sys->p_ddobject = NULL;
 937     return VLC_EGENERIC;
 938 }
 939
 940 /*****************************************************************************
 941  * DirectXCreateDisplay: create the DirectDraw display.
 942  *****************************************************************************
 943  * Create and initialize display according to preferences specified in the vout
 944  * thread fields.
 945  *****************************************************************************/
 946 static int DirectXCreateDisplay( vout_thread_t *p_vout )
 947 {
 948     HRESULT              dxresult;
 949     DDSURFACEDESC        ddsd;
 950     LPDIRECTDRAWSURFACE  p_display;
 951
 952     msg_Dbg( p_vout, "DirectXCreateDisplay" );
 953
 954     /* Now get the primary surface. This surface is what you actually see
 955      * on your screen */
 956     memset( &ddsd, 0, sizeof( DDSURFACEDESC ));
 957     ddsd.dwSize = sizeof(DDSURFACEDESC);
 958     ddsd.dwFlags = DDSD_CAPS;
 959     ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
 960
 961     dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
 962                                            &ddsd, &p_display, NULL );
 963     if( dxresult != DD_OK )
 964     {
 965         msg_Err( p_vout, "cannot get primary surface (error %li)", dxresult );
 966         return VLC_EGENERIC;
 967     }
 968
 969     dxresult = IDirectDrawSurface_QueryInterface( p_display,
 970                                          &IID_IDirectDrawSurface2,
 971                                          &p_vout->p_sys->p_display );
 972     /* Release the old interface */
 973     IDirectDrawSurface_Release( p_display );
 974     if ( dxresult != DD_OK )
 975     {
 976         msg_Err( p_vout, "cannot query IDirectDrawSurface2 interface "
 977                          "(error %li)", dxresult );
 978         return VLC_EGENERIC;
 979     }
 980
 981     /* The clipper will be used only in non-overlay mode */
 982     DirectXCreateClipper( p_vout );
 983
 984     /* Make sure the colorkey will be painted */
 985     p_vout->p_sys->i_colorkey = 1;
 986     p_vout->p_sys->i_rgb_colorkey =
 987         DirectXFindColorkey( p_vout, &p_vout->p_sys->i_colorkey );
 988
 989     UpdateRects( p_vout, true );
 990
 991     return VLC_SUCCESS;
 992 }
 993
 994 /*****************************************************************************
 995  * DirectXCreateClipper: Create a clipper that will be used when blitting the
 996  *                       RGB surface to the main display.
 997  *****************************************************************************
 998  * This clipper prevents us to modify by mistake anything on the screen
 999  * which doesn't belong to our window. For example when a part of our video
1000  * window is hidden by another window.
1001  *****************************************************************************/
1002 static int DirectXCreateClipper( vout_thread_t *p_vout )
1003 {
1004     HRESULT dxresult;
1005
1006     msg_Dbg( p_vout, "DirectXCreateClipper" );
1007
1008     /* Create the clipper */
1009     dxresult = IDirectDraw2_CreateClipper( p_vout->p_sys->p_ddobject, 0,
1010                                            &p_vout->p_sys->p_clipper, NULL );
1011     if( dxresult != DD_OK )
1012     {
1013         msg_Warn( p_vout, "cannot create clipper (error %li)", dxresult );
1014         goto error;
1015     }
1016
1017     /* Associate the clipper to the window */
1018     dxresult = IDirectDrawClipper_SetHWnd( p_vout->p_sys->p_clipper, 0,
1019                                            p_vout->p_sys->hvideownd );
1020     if( dxresult != DD_OK )
1021     {
1022         msg_Warn( p_vout, "cannot attach clipper to window (error %li)",
1023                           dxresult );
1024         goto error;
1025     }
1026
1027     /* associate the clipper with the surface */
1028     dxresult = IDirectDrawSurface_SetClipper(p_vout->p_sys->p_display,
1029                                              p_vout->p_sys->p_clipper);
1030     if( dxresult != DD_OK )
1031     {
1032         msg_Warn( p_vout, "cannot attach clipper to surface (error %li)",
1033                           dxresult );
1034         goto error;
1035     }
1036
1037     return VLC_SUCCESS;
1038
1039  error:
1040     if( p_vout->p_sys->p_clipper )
1041     {
1042         IDirectDrawClipper_Release( p_vout->p_sys->p_clipper );
1043     }
1044     p_vout->p_sys->p_clipper = NULL;
1045     return VLC_EGENERIC;
1046 }
1047
1048 /*****************************************************************************
1049  * DirectXCreateSurface: create an YUV overlay or RGB surface for the video.
1050  *****************************************************************************
1051  * The best method of display is with an YUV overlay because the YUV->RGB
1052  * conversion is done in hardware.
1053  * You can also create a plain RGB surface.
1054  * ( Maybe we could also try an RGB overlay surface, which could have hardware
1055  * scaling and which would also be faster in window mode because you don't
1056  * need to do any blitting to the main display...)
1057  *****************************************************************************/
1058 static int DirectXCreateSurface( vout_thread_t *p_vout,
1059                                  LPDIRECTDRAWSURFACE2 *pp_surface_final,
1060                                  int i_chroma, int b_overlay,
1061                                  int i_backbuffers )
1062 {
1063     HRESULT dxresult;
1064     LPDIRECTDRAWSURFACE p_surface;
1065     DDSURFACEDESC ddsd;
1066
1067     /* Create the video surface */
1068     if( b_overlay )
1069     {
1070         /* Now try to create the YUV overlay surface.
1071          * This overlay will be displayed on top of the primary surface.
1072          * A color key is used to determine whether or not the overlay will be
1073          * displayed, ie the overlay will be displayed in place of the primary
1074          * surface wherever the primary surface will have this color.
1075          * The video window has been created with a background of this color so
1076          * the overlay will be only displayed on top of this window */
1077
1078         memset( &ddsd, 0, sizeof( DDSURFACEDESC ));
1079         ddsd.dwSize = sizeof(DDSURFACEDESC);
1080         ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1081         ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
1082         ddsd.ddpfPixelFormat.dwFourCC = i_chroma;
1083         ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT;
1084         ddsd.dwFlags |= (i_backbuffers ? DDSD_BACKBUFFERCOUNT : 0);
1085         ddsd.ddsCaps.dwCaps = DDSCAPS_OVERLAY | DDSCAPS_VIDEOMEMORY;
1086         ddsd.ddsCaps.dwCaps |= (i_backbuffers ? DDSCAPS_COMPLEX | DDSCAPS_FLIP
1087                                 : 0 );
1088         ddsd.dwHeight = p_vout->render.i_height;
1089         ddsd.dwWidth = p_vout->render.i_width;
1090         ddsd.dwBackBufferCount = i_backbuffers;
1091
1092         dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1093                                                &ddsd, &p_surface, NULL );
1094         if( dxresult != DD_OK )
1095         {
1096             *pp_surface_final = NULL;
1097             return VLC_EGENERIC;
1098         }
1099     }
1100
1101     if( !b_overlay )
1102     {
1103         bool b_rgb_surface =
1104             ( i_chroma == VLC_CODEC_RGB8 )
1105           || ( i_chroma == VLC_CODEC_RGB15 )
1106            || ( i_chroma == VLC_CODEC_RGB16 )
1107             || ( i_chroma == VLC_CODEC_RGB24 )
1108              || ( i_chroma == VLC_CODEC_RGB32 );
1109
1110         memset( &ddsd, 0, sizeof( DDSURFACEDESC ) );
1111         ddsd.dwSize = sizeof(DDSURFACEDESC);
1112         ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1113         ddsd.dwFlags = DDSD_HEIGHT | DDSD_WIDTH | DDSD_CAPS;
1114         ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
1115         ddsd.dwHeight = p_vout->render.i_height;
1116         ddsd.dwWidth = p_vout->render.i_width;
1117
1118         if( p_vout->p_sys->b_use_sysmem )
1119             ddsd.ddsCaps.dwCaps |= DDSCAPS_SYSTEMMEMORY;
1120         else
1121             ddsd.ddsCaps.dwCaps |= DDSCAPS_VIDEOMEMORY;
1122
1123         if( !b_rgb_surface )
1124         {
1125             ddsd.dwFlags |= DDSD_PIXELFORMAT;
1126             ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
1127             ddsd.ddpfPixelFormat.dwFourCC = i_chroma;
1128         }
1129
1130         dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1131                                                &ddsd, &p_surface, NULL );
1132         if( dxresult != DD_OK )
1133         {
1134             *pp_surface_final = NULL;
1135             return VLC_EGENERIC;
1136         }
1137     }
1138
1139     /* Now that the surface is created, try to get a newer DirectX interface */
1140     dxresult = IDirectDrawSurface_QueryInterface( p_surface,
1141                                      &IID_IDirectDrawSurface2,
1142                                      (LPVOID *)pp_surface_final );
1143     IDirectDrawSurface_Release( p_surface );    /* Release the old interface */
1144     if ( dxresult != DD_OK )
1145     {
1146         msg_Err( p_vout, "cannot query IDirectDrawSurface2 interface "
1147                          "(error %li)", dxresult );
1148         *pp_surface_final = NULL;
1149         return VLC_EGENERIC;
1150     }
1151
1152     if( b_overlay )
1153     {
1154         /* Check the overlay is useable as some graphics cards allow creating
1155          * several overlays but only one can be used at one time. */
1156         p_vout->p_sys->p_current_surface = *pp_surface_final;
1157         if( DirectDrawUpdateOverlay( p_vout ) != VLC_SUCCESS )
1158         {
1159             IDirectDrawSurface2_Release( *pp_surface_final );
1160             *pp_surface_final = NULL;
1161             msg_Err( p_vout, "overlay unuseable (might already be in use)" );
1162             return VLC_EGENERIC;
1163         }
1164     }
1165
1166     return VLC_SUCCESS;
1167 }
1168
1169 /*****************************************************************************
1170  * DirectDrawUpdateOverlay: Move or resize overlay surface on video display.
1171  *****************************************************************************
1172  * This function is used to move or resize an overlay surface on the screen.
1173  * Ususally the overlay is moved by the user and thus, by a move or resize
1174  * event (in Manage).
1175  *****************************************************************************/
1176 int DirectDrawUpdateOverlay( vout_thread_t *p_vout )
1177 {
1178     DDOVERLAYFX     ddofx;
1179     DWORD           dwFlags;
1180     HRESULT         dxresult;
1181     RECT            rect_src = p_vout->p_sys->rect_src_clipped;
1182     RECT            rect_dest = p_vout->p_sys->rect_dest_clipped;
1183
1184     if( !p_vout->p_sys->b_using_overlay ) return VLC_EGENERIC;
1185
1186     if( p_vout->p_sys->b_wallpaper )
1187     {
1188         unsigned i_x, i_y, i_width, i_height;
1189
1190         rect_src.left = p_vout->fmt_out.i_x_offset;
1191         rect_src.top = p_vout->fmt_out.i_y_offset;
1192         rect_src.right = rect_src.left + p_vout->fmt_out.i_visible_width;
1193         rect_src.bottom = rect_src.top + p_vout->fmt_out.i_visible_height;
1194
1195         rect_dest = p_vout->p_sys->rect_display;
1196         vout_PlacePicture( p_vout, rect_dest.right, rect_dest.bottom,
1197                            &i_x, &i_y, &i_width, &i_height );
1198
1199         rect_dest.left += i_x;
1200         rect_dest.right = rect_dest.left + i_width;
1201         rect_dest.top += i_y;
1202         rect_dest.bottom = rect_dest.top + i_height;
1203     }
1204
1205     vlc_mutex_lock( &p_vout->p_sys->lock );
1206     if( p_vout->p_sys->p_current_surface == NULL )
1207     {
1208         vlc_mutex_unlock( &p_vout->p_sys->lock );
1209         return VLC_EGENERIC;
1210     }
1211
1212     /* The new window dimensions should already have been computed by the
1213      * caller of this function */
1214
1215     /* Position and show the overlay */
1216     memset(&ddofx, 0, sizeof(DDOVERLAYFX));
1217     ddofx.dwSize = sizeof(DDOVERLAYFX);
1218     ddofx.dckDestColorkey.dwColorSpaceLowValue = p_vout->p_sys->i_colorkey;
1219     ddofx.dckDestColorkey.dwColorSpaceHighValue = p_vout->p_sys->i_colorkey;
1220
1221     dwFlags = DDOVER_SHOW | DDOVER_KEYDESTOVERRIDE;
1222
1223     dxresult = IDirectDrawSurface2_UpdateOverlay(
1224                    p_vout->p_sys->p_current_surface,
1225                    &rect_src, p_vout->p_sys->p_display, &rect_dest,
1226                    dwFlags, &ddofx );
1227
1228     vlc_mutex_unlock( &p_vout->p_sys->lock );
1229
1230     if(dxresult != DD_OK)
1231     {
1232         msg_Warn( p_vout, "DirectDrawUpdateOverlay cannot move/resize overlay" );
1233         return VLC_EGENERIC;
1234     }
1235
1236     return VLC_SUCCESS;
1237 }
1238
1239 /*****************************************************************************
1240  * DirectXCloseDDraw: Release the DDraw object allocated by DirectXInitDDraw
1241  *****************************************************************************
1242  * This function returns all resources allocated by DirectXInitDDraw.
1243  *****************************************************************************/
1244 static void DirectXCloseDDraw( vout_thread_t *p_vout )
1245 {
1246     msg_Dbg( p_vout, "DirectXCloseDDraw" );
1247     if( p_vout->p_sys->p_ddobject != NULL )
1248     {
1249         IDirectDraw2_Release(p_vout->p_sys->p_ddobject);
1250         p_vout->p_sys->p_ddobject = NULL;
1251     }
1252
1253     if( p_vout->p_sys->hddraw_dll != NULL )
1254     {
1255         FreeLibrary( p_vout->p_sys->hddraw_dll );
1256         p_vout->p_sys->hddraw_dll = NULL;
1257     }
1258
1259     free( p_vout->p_sys->p_display_driver );
1260     p_vout->p_sys->p_display_driver = NULL;
1261
1262     p_vout->p_sys->hmonitor = NULL;
1263 }
1264
1265 /*****************************************************************************
1266  * DirectXCloseDisplay: close and reset the DirectX display device
1267  *****************************************************************************
1268  * This function returns all resources allocated by DirectXCreateDisplay.
1269  *****************************************************************************/
1270 static void DirectXCloseDisplay( vout_thread_t *p_vout )
1271 {
1272     msg_Dbg( p_vout, "DirectXCloseDisplay" );
1273
1274     if( p_vout->p_sys->p_clipper != NULL )
1275     {
1276         msg_Dbg( p_vout, "DirectXCloseDisplay clipper" );
1277         IDirectDrawClipper_Release( p_vout->p_sys->p_clipper );
1278         p_vout->p_sys->p_clipper = NULL;
1279     }
1280
1281     if( p_vout->p_sys->p_display != NULL )
1282     {
1283         msg_Dbg( p_vout, "DirectXCloseDisplay display" );
1284         IDirectDrawSurface2_Release( p_vout->p_sys->p_display );
1285         p_vout->p_sys->p_display = NULL;
1286     }
1287 }
1288
1289 /*****************************************************************************
1290  * DirectXCloseSurface: close the YUV overlay or RGB surface.
1291  *****************************************************************************
1292  * This function returns all resources allocated for the surface.
1293  *****************************************************************************/
1294 static void DirectXCloseSurface( vout_thread_t *p_vout,
1295                                  LPDIRECTDRAWSURFACE2 p_surface )
1296 {
1297     msg_Dbg( p_vout, "DirectXCloseSurface" );
1298     if( p_surface != NULL )
1299     {
1300         IDirectDrawSurface2_Release( p_surface );
1301     }
1302 }
1303
1304 /*****************************************************************************
1305  * NewPictureVec: allocate a picture
1306  * FIXME? make it work for i_num_pic pictures...
1307  *****************************************************************************
1308  * Returns 0 on success, -1 otherwise
1309  *****************************************************************************/
1310 static int NewPictureVec( vout_thread_t *p_vout, picture_t *p_pic )
1311 {
1312     int i;
1313     int i_ret = VLC_SUCCESS;
1314     LPDIRECTDRAWSURFACE2 p_surface;
1315
1316     msg_Dbg( p_vout, "NewPictureVec overlay:%s chroma:%.4s",
1317              p_vout->p_sys->b_using_overlay ? "yes" : "no",
1318              (char *)&p_vout->output.i_chroma );
1319
1320     I_OUTPUTPICTURES = 0;
1321
1322     /* First we try to use an YUV overlay surface.
1323      * The overlay surface that we create won't be used to decode directly
1324      * into it because accessing video memory directly is way to slow (remember
1325      * that pictures are decoded macroblock per macroblock). Instead the video
1326      * will be decoded in picture buffers in system memory which will then be
1327      * memcpy() to the overlay surface. */
1328     if( p_vout->p_sys->b_using_overlay )
1329     {
1330         /* Triple buffering rocks! it doesn't have any processing overhead
1331          * (you don't have to wait for the vsync) and provides for a very nice
1332          * video quality (no tearing). */
1333         if( p_vout->p_sys->b_3buf_overlay )
1334             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1335                                           p_vout->output.i_chroma,
1336                                           p_vout->p_sys->b_using_overlay,
1337                                           2 /* number of backbuffers */ );
1338
1339         if( !p_vout->p_sys->b_3buf_overlay || i_ret != VLC_SUCCESS )
1340         {
1341             /* Try to reduce the number of backbuffers */
1342             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1343                                           p_vout->output.i_chroma,
1344                                           p_vout->p_sys->b_using_overlay,
1345                                           0 /* number of backbuffers */ );
1346         }
1347
1348         if( i_ret == VLC_SUCCESS )
1349         {
1350             DDSCAPS dds_caps;
1351             picture_t front_pic;
1352             picture_sys_t front_pic_sys;
1353             front_pic.p_sys = &front_pic_sys;
1354
1355             /* Allocate internal structure */
1356             p_pic[0].p_sys = malloc( sizeof( picture_sys_t ) );
1357             if( p_pic[0].p_sys == NULL )
1358             {
1359                 DirectXCloseSurface( p_vout, p_surface );
1360                 return VLC_ENOMEM;
1361             }
1362
1363             /* set front buffer */
1364             p_pic[0].p_sys->p_front_surface = p_surface;
1365
1366             /* Get the back buffer */
1367             memset( &dds_caps, 0, sizeof( DDSCAPS ) );
1368             dds_caps.dwCaps = DDSCAPS_BACKBUFFER;
1369             if( DD_OK != IDirectDrawSurface2_GetAttachedSurface(
1370                                                 p_surface, &dds_caps,
1371                                                 &p_pic[0].p_sys->p_surface ) )
1372             {
1373                 msg_Warn( p_vout, "NewPictureVec could not get back buffer" );
1374                 /* front buffer is the same as back buffer */
1375                 p_pic[0].p_sys->p_surface = p_surface;
1376             }
1377
1378
1379             p_vout->p_sys->p_current_surface = front_pic.p_sys->p_surface =
1380                 p_pic[0].p_sys->p_front_surface;
1381
1382             /* Reset the front buffer memory */
1383             if( DirectXLockSurface( p_vout, &front_pic ) == VLC_SUCCESS )
1384             {
1385                 int i,j;
1386                 for( i = 0; i < front_pic.i_planes; i++ )
1387                     for( j = 0; j < front_pic.p[i].i_visible_lines; j++)
1388                         memset( front_pic.p[i].p_pixels + j *
1389                                 front_pic.p[i].i_pitch, 127,
1390                                 front_pic.p[i].i_visible_pitch );
1391
1392                 DirectXUnlockSurface( p_vout, &front_pic );
1393             }
1394
1395             DirectDrawUpdateOverlay( p_vout );
1396             I_OUTPUTPICTURES = 1;
1397             msg_Dbg( p_vout, "YUV overlay created successfully" );
1398         }
1399     }
1400
1401     /* As we can't have an overlay, we'll try to create a plain offscreen
1402      * surface. This surface will reside in video memory because there's a
1403      * better chance then that we'll be able to use some kind of hardware
1404      * acceleration like rescaling, blitting or YUV->RGB conversions.
1405      * We then only need to blit this surface onto the main display when we
1406      * want to display it */
1407     if( !p_vout->p_sys->b_using_overlay )
1408     {
1409         if( p_vout->p_sys->b_hw_yuv )
1410         {
1411             DWORD i_codes;
1412             DWORD *pi_codes;
1413             bool b_result = false;
1414
1415             /* Check if the chroma is supported first. This is required
1416              * because a few buggy drivers don't mind creating the surface
1417              * even if they don't know about the chroma. */
1418             if( IDirectDraw2_GetFourCCCodes( p_vout->p_sys->p_ddobject,
1419                                              &i_codes, NULL ) == DD_OK )
1420             {
1421                 pi_codes = malloc( i_codes * sizeof(DWORD) );
1422                 if( pi_codes && IDirectDraw2_GetFourCCCodes(
1423                     p_vout->p_sys->p_ddobject, &i_codes, pi_codes ) == DD_OK )
1424                 {
1425                     for( i = 0; i < (int)i_codes; i++ )
1426                     {
1427                         if( p_vout->output.i_chroma == pi_codes[i] )
1428                         {
1429                             b_result = true;
1430                             break;
1431                         }
1432                     }
1433                 }
1434             }
1435
1436             if( b_result )
1437                 i_ret = DirectXCreateSurface( p_vout, &p_surface,
1438                                               p_vout->output.i_chroma,
1439                                               0 /* no overlay */,
1440                                               0 /* no back buffers */ );
1441             else
1442                 p_vout->p_sys->b_hw_yuv = false;
1443         }
1444
1445         if( i_ret || !p_vout->p_sys->b_hw_yuv )
1446         {
1447             /* Our last choice is to use a plain RGB surface */
1448             DDPIXELFORMAT ddpfPixelFormat;
1449
1450             ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1451             IDirectDrawSurface2_GetPixelFormat( p_vout->p_sys->p_display,
1452                                                 &ddpfPixelFormat );
1453
1454             if( ddpfPixelFormat.dwFlags & DDPF_RGB )
1455             {
1456                 switch( ddpfPixelFormat.dwRGBBitCount )
1457                 {
1458                 case 8:
1459                     p_vout->output.i_chroma = VLC_CODEC_RGB8;
1460                     p_vout->output.pf_setpalette = SetPalette;
1461                     break;
1462                 case 15:
1463                     p_vout->output.i_chroma = VLC_CODEC_RGB15;
1464                     break;
1465                 case 16:
1466                     p_vout->output.i_chroma = VLC_CODEC_RGB16;
1467                     break;
1468                 case 24:
1469                     p_vout->output.i_chroma = VLC_CODEC_RGB24;
1470                     break;
1471                 case 32:
1472                     p_vout->output.i_chroma = VLC_CODEC_RGB32;
1473                     break;
1474                 default:
1475                     msg_Err( p_vout, "unknown screen depth" );
1476                     return VLC_EGENERIC;
1477                 }
1478                 p_vout->output.i_rmask = ddpfPixelFormat.dwRBitMask;
1479                 p_vout->output.i_gmask = ddpfPixelFormat.dwGBitMask;
1480                 p_vout->output.i_bmask = ddpfPixelFormat.dwBBitMask;
1481             }
1482
1483             p_vout->p_sys->b_hw_yuv = 0;
1484
1485             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1486                                           p_vout->output.i_chroma,
1487                                           0 /* no overlay */,
1488                                           0 /* no back buffers */ );
1489
1490             if( i_ret && !p_vout->p_sys->b_use_sysmem )
1491             {
1492                 /* Give it a last try with b_use_sysmem enabled */
1493                 p_vout->p_sys->b_use_sysmem = 1;
1494
1495                 i_ret = DirectXCreateSurface( p_vout, &p_surface,
1496                                               p_vout->output.i_chroma,
1497                                               0 /* no overlay */,
1498                                               0 /* no back buffers */ );
1499             }
1500         }
1501
1502         if( i_ret == VLC_SUCCESS )
1503         {
1504             /* Allocate internal structure */
1505             p_pic[0].p_sys = malloc( sizeof( picture_sys_t ) );
1506             if( p_pic[0].p_sys == NULL )
1507             {
1508                 DirectXCloseSurface( p_vout, p_surface );
1509                 return VLC_ENOMEM;
1510             }
1511
1512             p_pic[0].p_sys->p_surface = p_pic[0].p_sys->p_front_surface
1513                 = p_surface;
1514
1515             I_OUTPUTPICTURES = 1;
1516
1517             msg_Dbg( p_vout, "created plain surface of chroma:%.4s",
1518                      (char *)&p_vout->output.i_chroma );
1519         }
1520     }
1521
1522
1523     /* Now that we've got all our direct-buffers, we can finish filling in the
1524      * picture_t structures */
1525     for( i = 0; i < I_OUTPUTPICTURES; i++ )
1526     {
1527         p_pic[i].i_status = DESTROYED_PICTURE;
1528         p_pic[i].i_type   = DIRECT_PICTURE;
1529         p_pic[i].b_slow   = true;
1530         p_pic[i].pf_lock  = DirectXLockSurface;
1531         p_pic[i].pf_unlock = DirectXUnlockSurface;
1532         PP_OUTPUTPICTURE[i] = &p_pic[i];
1533
1534         if( DirectXLockSurface( p_vout, &p_pic[i] ) != VLC_SUCCESS )
1535         {
1536             /* AAARRGG */
1537             FreePictureVec( p_vout, p_pic, I_OUTPUTPICTURES );
1538             I_OUTPUTPICTURES = 0;
1539             msg_Err( p_vout, "cannot lock surface" );
1540             return VLC_EGENERIC;
1541         }
1542         DirectXUnlockSurface( p_vout, &p_pic[i] );
1543     }
1544
1545     msg_Dbg( p_vout, "End NewPictureVec (%s)",
1546              I_OUTPUTPICTURES ? "succeeded" : "failed" );
1547
1548     return VLC_SUCCESS;
1549 }
1550
1551 /*****************************************************************************
1552  * FreePicture: destroy a picture vector allocated with NewPictureVec
1553  *****************************************************************************
1554  *
1555  *****************************************************************************/
1556 static void FreePictureVec( vout_thread_t *p_vout, picture_t *p_pic,
1557                             int i_num_pics )
1558 {
1559     int i;
1560
1561     vlc_mutex_lock( &p_vout->p_sys->lock );
1562     p_vout->p_sys->p_current_surface = 0;
1563     vlc_mutex_unlock( &p_vout->p_sys->lock );
1564
1565     for( i = 0; i < i_num_pics; i++ )
1566     {
1567         DirectXCloseSurface( p_vout, p_pic[i].p_sys->p_front_surface );
1568
1569         for( i = 0; i < i_num_pics; i++ )
1570         {
1571             free( p_pic[i].p_sys );
1572         }
1573     }
1574 }
1575
1576 /*****************************************************************************
1577  * UpdatePictureStruct: updates the internal data in the picture_t structure
1578  *****************************************************************************
1579  * This will setup stuff for use by the video_output thread
1580  *****************************************************************************/
1581 static int UpdatePictureStruct( vout_thread_t *p_vout, picture_t *p_pic )
1582 {
1583     switch( p_vout->output.i_chroma )
1584     {
1585         case VLC_CODEC_RGB8:
1586         case VLC_CODEC_RGB15:
1587         case VLC_CODEC_RGB16:
1588         case VLC_CODEC_RGB24:
1589         case VLC_CODEC_RGB32:
1590             p_pic->p->p_pixels = p_pic->p_sys->ddsd.lpSurface;
1591             p_pic->p->i_lines = p_vout->output.i_height;
1592             p_pic->p->i_visible_lines = p_vout->output.i_height;
1593             p_pic->p->i_pitch = p_pic->p_sys->ddsd.lPitch;
1594             switch( p_vout->output.i_chroma )
1595             {
1596                 case VLC_CODEC_RGB8:
1597                     p_pic->p->i_pixel_pitch = 1;
1598                     break;
1599                 case VLC_CODEC_RGB15:
1600                 case VLC_CODEC_RGB16:
1601                     p_pic->p->i_pixel_pitch = 2;
1602                     break;
1603                 case VLC_CODEC_RGB24:
1604                     p_pic->p->i_pixel_pitch = 3;
1605                     break;
1606                 case VLC_CODEC_RGB32:
1607                     p_pic->p->i_pixel_pitch = 4;
1608                     break;
1609                 default:
1610                     return VLC_EGENERIC;
1611             }
1612             p_pic->p->i_visible_pitch = p_vout->output.i_width *
1613               p_pic->p->i_pixel_pitch;
1614             p_pic->i_planes = 1;
1615             break;
1616
1617         case VLC_CODEC_YV12:
1618
1619             /* U and V inverted compared to I420
1620              * Fixme: this should be handled by the vout core */
1621             p_vout->output.i_chroma = VLC_CODEC_I420;
1622
1623             p_pic->Y_PIXELS = p_pic->p_sys->ddsd.lpSurface;
1624             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1625             p_pic->p[Y_PLANE].i_visible_lines = p_vout->output.i_height;
1626             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->ddsd.lPitch;
1627             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1628             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width *
1629               p_pic->p[Y_PLANE].i_pixel_pitch;
1630
1631             p_pic->V_PIXELS =  p_pic->Y_PIXELS
1632               + p_pic->p[Y_PLANE].i_lines * p_pic->p[Y_PLANE].i_pitch;
1633             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1634             p_pic->p[V_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1635             p_pic->p[V_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1636             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1637             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1638               p_pic->p[V_PLANE].i_pixel_pitch;
1639
1640             p_pic->U_PIXELS = p_pic->V_PIXELS
1641               + p_pic->p[V_PLANE].i_lines * p_pic->p[V_PLANE].i_pitch;
1642             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1643             p_pic->p[U_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1644             p_pic->p[U_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1645             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1646             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1647               p_pic->p[U_PLANE].i_pixel_pitch;
1648
1649             p_pic->i_planes = 3;
1650             break;
1651
1652         case VLC_CODEC_I420:
1653
1654             p_pic->Y_PIXELS = p_pic->p_sys->ddsd.lpSurface;
1655             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1656             p_pic->p[Y_PLANE].i_visible_lines = p_vout->output.i_height;
1657             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->ddsd.lPitch;
1658             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1659             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width *
1660               p_pic->p[Y_PLANE].i_pixel_pitch;
1661
1662             p_pic->U_PIXELS = p_pic->Y_PIXELS
1663               + p_pic->p[Y_PLANE].i_lines * p_pic->p[Y_PLANE].i_pitch;
1664             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1665             p_pic->p[U_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1666             p_pic->p[U_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1667             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1668             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1669               p_pic->p[U_PLANE].i_pixel_pitch;
1670
1671             p_pic->V_PIXELS =  p_pic->U_PIXELS
1672               + p_pic->p[U_PLANE].i_lines * p_pic->p[U_PLANE].i_pitch;
1673             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1674             p_pic->p[V_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1675             p_pic->p[V_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1676             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1677             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1678               p_pic->p[V_PLANE].i_pixel_pitch;
1679
1680             p_pic->i_planes = 3;
1681             break;
1682
1683         case VLC_CODEC_UYVY:
1684         case VLC_CODEC_YUYV:
1685
1686             p_pic->p->p_pixels = p_pic->p_sys->ddsd.lpSurface;
1687             p_pic->p->i_lines = p_vout->output.i_height;
1688             p_pic->p->i_visible_lines = p_vout->output.i_height;
1689             p_pic->p->i_pitch = p_pic->p_sys->ddsd.lPitch;
1690             p_pic->p->i_pixel_pitch = 2;
1691             p_pic->p->i_visible_pitch = p_vout->output.i_width *
1692               p_pic->p->i_pixel_pitch;
1693
1694             p_pic->i_planes = 1;
1695             break;
1696
1697         default:
1698             /* Unknown chroma, tell the guy to get lost */
1699             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1700                      p_vout->output.i_chroma,
1701                      (char*)&p_vout->output.i_chroma );
1702             return VLC_EGENERIC;
1703     }
1704
1705     return VLC_SUCCESS;
1706 }
1707
1708 /*****************************************************************************
1709  * DirectXGetDDrawCaps: Probe the capabilities of the hardware
1710  *****************************************************************************
1711  * It is nice to know which features are supported by the hardware so we can
1712  * find ways to optimize our rendering.
1713  *****************************************************************************/
1714 static void DirectXGetDDrawCaps( vout_thread_t *p_vout )
1715 {
1716     DDCAPS ddcaps;
1717     HRESULT dxresult;
1718
1719     /* This is just an indication of whether or not we'll support overlay,
1720      * but with this test we don't know if we support YUV overlay */
1721     memset( &ddcaps, 0, sizeof( DDCAPS ));
1722     ddcaps.dwSize = sizeof(DDCAPS);
1723     dxresult = IDirectDraw2_GetCaps( p_vout->p_sys->p_ddobject,
1724                                      &ddcaps, NULL );
1725     if(dxresult != DD_OK )
1726     {
1727         msg_Warn( p_vout, "cannot get caps" );
1728     }
1729     else
1730     {
1731         bool bHasOverlay, bHasOverlayFourCC, bCanDeinterlace,
1732              bHasColorKey, bCanStretch, bCanBltFourcc,
1733              bAlignBoundarySrc, bAlignBoundaryDest,
1734              bAlignSizeSrc, bAlignSizeDest;
1735
1736         /* Determine if the hardware supports overlay surfaces */
1737         bHasOverlay = (ddcaps.dwCaps & DDCAPS_OVERLAY) ? 1 : 0;
1738         /* Determine if the hardware supports overlay surfaces */
1739         bHasOverlayFourCC = (ddcaps.dwCaps & DDCAPS_OVERLAYFOURCC) ? 1 : 0;
1740         /* Determine if the hardware supports overlay deinterlacing */
1741         bCanDeinterlace = (ddcaps.dwCaps & DDCAPS2_CANFLIPODDEVEN) ? 1 : 0;
1742         /* Determine if the hardware supports colorkeying */
1743         bHasColorKey = (ddcaps.dwCaps & DDCAPS_COLORKEY) ? 1 : 0;
1744         /* Determine if the hardware supports scaling of the overlay surface */
1745         bCanStretch = (ddcaps.dwCaps & DDCAPS_OVERLAYSTRETCH) ? 1 : 0;
1746         /* Determine if the hardware supports color conversion during a blit */
1747         bCanBltFourcc = (ddcaps.dwCaps & DDCAPS_BLTFOURCC) ? 1 : 0;
1748         /* Determine overlay source boundary alignment */
1749         bAlignBoundarySrc = (ddcaps.dwCaps & DDCAPS_ALIGNBOUNDARYSRC) ? 1 : 0;
1750         /* Determine overlay destination boundary alignment */
1751         bAlignBoundaryDest = (ddcaps.dwCaps & DDCAPS_ALIGNBOUNDARYDEST) ? 1:0;
1752         /* Determine overlay destination size alignment */
1753         bAlignSizeSrc = (ddcaps.dwCaps & DDCAPS_ALIGNSIZESRC) ? 1 : 0;
1754         /* Determine overlay destination size alignment */
1755         bAlignSizeDest = (ddcaps.dwCaps & DDCAPS_ALIGNSIZEDEST) ? 1 : 0;
1756
1757         msg_Dbg( p_vout, "DirectDraw Capabilities: overlay=%i yuvoverlay=%i "
1758                          "can_deinterlace_overlay=%i colorkey=%i stretch=%i "
1759                          "bltfourcc=%i",
1760                          bHasOverlay, bHasOverlayFourCC, bCanDeinterlace,
1761                          bHasColorKey, bCanStretch, bCanBltFourcc );
1762
1763         if( bAlignBoundarySrc || bAlignBoundaryDest ||
1764             bAlignSizeSrc || bAlignSizeDest )
1765         {
1766             if( bAlignBoundarySrc ) p_vout->p_sys->i_align_src_boundary =
1767                 ddcaps.dwAlignBoundarySrc;
1768             if( bAlignBoundaryDest ) p_vout->p_sys->i_align_dest_boundary =
1769                 ddcaps.dwAlignBoundaryDest;
1770             if( bAlignSizeDest ) p_vout->p_sys->i_align_src_size =
1771                 ddcaps.dwAlignSizeSrc;
1772             if( bAlignSizeDest ) p_vout->p_sys->i_align_dest_size =
1773                 ddcaps.dwAlignSizeDest;
1774
1775             msg_Dbg( p_vout, "align_boundary_src=%i,%i "
1776                      "align_boundary_dest=%i,%i "
1777                      "align_size_src=%i,%i align_size_dest=%i,%i",
1778                      bAlignBoundarySrc, p_vout->p_sys->i_align_src_boundary,
1779                      bAlignBoundaryDest, p_vout->p_sys->i_align_dest_boundary,
1780                      bAlignSizeSrc, p_vout->p_sys->i_align_src_size,
1781                      bAlignSizeDest, p_vout->p_sys->i_align_dest_size );
1782         }
1783
1784         /* Don't ask for troubles */
1785         if( !bCanBltFourcc ) p_vout->p_sys->b_hw_yuv = FALSE;
1786     }
1787 }
1788
1789 /*****************************************************************************
1790  * DirectXLockSurface: Lock surface and get picture data pointer
1791  *****************************************************************************
1792  * This function locks a surface and get the surface descriptor which amongst
1793  * other things has the pointer to the picture data.
1794  *****************************************************************************/
1795 static int DirectXLockSurface( vout_thread_t *p_vout, picture_t *p_pic )
1796 {
1797     HRESULT dxresult;
1798
1799     /* Lock the surface to get a valid pointer to the picture buffer */
1800     memset( &p_pic->p_sys->ddsd, 0, sizeof( DDSURFACEDESC ));
1801     p_pic->p_sys->ddsd.dwSize = sizeof(DDSURFACEDESC);
1802     dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface,
1803                                          NULL, &p_pic->p_sys->ddsd,
1804                                          DDLOCK_NOSYSLOCK | DDLOCK_WAIT,
1805                                          NULL );
1806     if( dxresult != DD_OK )
1807     {
1808         if( dxresult == DDERR_INVALIDPARAMS )
1809         {
1810             /* DirectX 3 doesn't support the DDLOCK_NOSYSLOCK flag, resulting
1811              * in an invalid params error */
1812             dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface, NULL,
1813                                              &p_pic->p_sys->ddsd,
1814                                              DDLOCK_WAIT, NULL);
1815         }
1816         if( dxresult == DDERR_SURFACELOST )
1817         {
1818             /* Your surface can be lost so be sure
1819              * to check this and restore it if needed */
1820
1821             /* When using overlays with back-buffers, we need to restore
1822              * the front buffer so the back-buffers get restored as well. */
1823             if( p_vout->p_sys->b_using_overlay  )
1824                 IDirectDrawSurface2_Restore( p_pic->p_sys->p_front_surface );
1825             else
1826                 IDirectDrawSurface2_Restore( p_pic->p_sys->p_surface );
1827
1828             dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface, NULL,
1829                                                  &p_pic->p_sys->ddsd,
1830                                                  DDLOCK_WAIT, NULL);
1831 #ifndef NDEBUG
1832             if( dxresult == DDERR_SURFACELOST )
1833                 msg_Dbg( p_vout, "DirectXLockSurface: DDERR_SURFACELOST" );
1834 #endif
1835         }
1836         if( dxresult != DD_OK )
1837         {
1838             return VLC_EGENERIC;
1839         }
1840     }
1841
1842     /* Now we have a pointer to the surface memory, we can update our picture
1843      * structure. */
1844     if( UpdatePictureStruct( p_vout, p_pic )
1845         != VLC_SUCCESS )
1846     {
1847         DirectXUnlockSurface( p_vout, p_pic );
1848         return VLC_EGENERIC;
1849     }
1850     else
1851         return VLC_SUCCESS;
1852 }
1853
1854 /*****************************************************************************
1855  * DirectXUnlockSurface: Unlock a surface locked by DirectXLockSurface().
1856  *****************************************************************************/
1857 static int DirectXUnlockSurface( vout_thread_t *p_vout, picture_t *p_pic )
1858 {
1859     VLC_UNUSED( p_vout );
1860
1861     /* Unlock the Surface */
1862     if( IDirectDrawSurface2_Unlock( p_pic->p_sys->p_surface, NULL ) == DD_OK )
1863         return VLC_SUCCESS;
1864     else
1865         return VLC_EGENERIC;
1866 }
1867
1868 /*****************************************************************************
1869  * DirectXFindColorkey: Finds out the 32bits RGB pixel value of the colorkey
1870  *****************************************************************************/
1871 static DWORD DirectXFindColorkey( vout_thread_t *p_vout, uint32_t *pi_color )
1872 {
1873     DDSURFACEDESC ddsd;
1874     HRESULT dxresult;
1875     COLORREF i_rgb = 0;
1876     uint32_t i_pixel_backup;
1877     HDC hdc;
1878
1879     ddsd.dwSize = sizeof(ddsd);
1880     dxresult = IDirectDrawSurface2_Lock( p_vout->p_sys->p_display, NULL,
1881                                          &ddsd, DDLOCK_WAIT, NULL );
1882     if( dxresult != DD_OK ) return 0;
1883
1884     i_pixel_backup = *(uint32_t *)ddsd.lpSurface;
1885
1886     switch( ddsd.ddpfPixelFormat.dwRGBBitCount )
1887     {
1888     case 4:
1889         *(uint8_t *)ddsd.lpSurface = *pi_color | (*pi_color << 4);
1890         break;
1891     case 8:
1892         *(uint8_t *)ddsd.lpSurface = *pi_color;
1893         break;
1894     case 15:
1895     case 16:
1896         *(uint16_t *)ddsd.lpSurface = *pi_color;
1897         break;
1898     case 24:
1899         /* Seems to be problematic so we'll just put black as the colorkey */
1900         *pi_color = 0;
1901     default:
1902         *(uint32_t *)ddsd.lpSurface = *pi_color;
1903         break;
1904     }
1905
1906     IDirectDrawSurface2_Unlock( p_vout->p_sys->p_display, NULL );
1907
1908     if( IDirectDrawSurface2_GetDC( p_vout->p_sys->p_display, &hdc ) == DD_OK )
1909     {
1910         i_rgb = GetPixel( hdc, 0, 0 );
1911         IDirectDrawSurface2_ReleaseDC( p_vout->p_sys->p_display, hdc );
1912     }
1913
1914     ddsd.dwSize = sizeof(ddsd);
1915     dxresult = IDirectDrawSurface2_Lock( p_vout->p_sys->p_display, NULL,
1916                                          &ddsd, DDLOCK_WAIT, NULL );
1917     if( dxresult != DD_OK ) return i_rgb;
1918
1919     *(uint32_t *)ddsd.lpSurface = i_pixel_backup;
1920
1921     IDirectDrawSurface2_Unlock( p_vout->p_sys->p_display, NULL );
1922
1923     return i_rgb;
1924 }
1925
1926 /*****************************************************************************
1927  * A few toolbox functions
1928  *****************************************************************************/
1929 void SwitchWallpaperMode( vout_thread_t *p_vout, bool b_on )
1930 {
1931     HWND hwnd;
1932
1933     if( p_vout->p_sys->b_wallpaper == b_on ) return; /* Nothing to do */
1934
1935     hwnd = FindWindow( _T("Progman"), NULL );
1936     if( hwnd ) hwnd = FindWindowEx( hwnd, NULL, _T("SHELLDLL_DefView"), NULL );
1937     if( hwnd ) hwnd = FindWindowEx( hwnd, NULL, _T("SysListView32"), NULL );
1938     if( !hwnd )
1939     {
1940         msg_Warn( p_vout, "couldn't find \"SysListView32\" window, "
1941                   "wallpaper mode not supported" );
1942         return;
1943     }
1944
1945     p_vout->p_sys->b_wallpaper = b_on;
1946
1947     msg_Dbg( p_vout, "wallpaper mode %s", b_on ? "enabled" : "disabled" );
1948
1949     if( p_vout->p_sys->b_wallpaper )
1950     {
1951         p_vout->p_sys->color_bkg = ListView_GetBkColor( hwnd );
1952         p_vout->p_sys->color_bkgtxt = ListView_GetTextBkColor( hwnd );
1953
1954         ListView_SetBkColor( hwnd, p_vout->p_sys->i_rgb_colorkey );
1955         ListView_SetTextBkColor( hwnd, p_vout->p_sys->i_rgb_colorkey );
1956     }
1957     else if( hwnd )
1958     {
1959         ListView_SetBkColor( hwnd, p_vout->p_sys->color_bkg );
1960         ListView_SetTextBkColor( hwnd, p_vout->p_sys->color_bkgtxt );
1961     }
1962
1963     /* Update desktop */
1964     InvalidateRect( hwnd, NULL, TRUE );
1965     UpdateWindow( hwnd );
1966 }
1967
1968 /*****************************************************************************
1969  * config variable callback
1970  *****************************************************************************/
1971 BOOL WINAPI DirectXEnumCallback2( GUID* p_guid, LPTSTR psz_desc,
1972                                   LPTSTR psz_drivername, VOID* p_context,
1973                                   HMONITOR hmon )
1974 {
1975     VLC_UNUSED( p_guid ); VLC_UNUSED( psz_desc ); VLC_UNUSED( hmon );
1976
1977     module_config_t *p_item = (module_config_t *)p_context;
1978
1979     p_item->ppsz_list =
1980         (char **)realloc( p_item->ppsz_list,
1981                           (p_item->i_list+2) * sizeof(char *) );
1982     p_item->ppsz_list_text =
1983         (char **)realloc( p_item->ppsz_list_text,
1984                           (p_item->i_list+2) * sizeof(char *) );
1985
1986     p_item->ppsz_list[p_item->i_list] = strdup( psz_drivername );
1987     p_item->ppsz_list_text[p_item->i_list] = NULL;
1988     p_item->i_list++;
1989     p_item->ppsz_list[p_item->i_list] = NULL;
1990     p_item->ppsz_list_text[p_item->i_list] = NULL;
1991
1992     return TRUE; /* Keep enumerating */
1993 }
1994
1995 static int FindDevicesCallback( vlc_object_t *p_this, char const *psz_name,
1996                                vlc_value_t newval, vlc_value_t oldval, void *d)
1997 {
1998     VLC_UNUSED( newval ); VLC_UNUSED( oldval ); VLC_UNUSED( d );
1999
2000     HRESULT (WINAPI *OurDirectDrawEnumerateEx)( LPDDENUMCALLBACKEXA, LPVOID,
2001                                                 DWORD );
2002     HINSTANCE hddraw_dll;
2003
2004     module_config_t *p_item;
2005     int i;
2006
2007     p_item = config_FindConfig( p_this, psz_name );
2008     if( !p_item ) return VLC_SUCCESS;
2009
2010     /* Clear-up the current list */
2011     if( p_item->i_list )
2012     {
2013         /* Keep the first entry */
2014         for( i = 1; i < p_item->i_list; i++ )
2015         {
2016             free( p_item->ppsz_list[i] );
2017             free( p_item->ppsz_list_text[i] );
2018         }
2019         /* TODO: Remove when no more needed */
2020         p_item->ppsz_list[i] = NULL;
2021         p_item->ppsz_list_text[i] = NULL;
2022     }
2023     p_item->i_list = 1;
2024
2025     /* Load direct draw DLL */
2026     hddraw_dll = LoadLibrary(_T("DDRAW.DLL"));
2027     if( hddraw_dll == NULL ) return VLC_SUCCESS;
2028
2029     OurDirectDrawEnumerateEx =
2030       (void *)GetProcAddress( hddraw_dll, _T("DirectDrawEnumerateExW") );
2031
2032     if( OurDirectDrawEnumerateEx )
2033     {
2034         /* Enumerate displays */
2035         OurDirectDrawEnumerateEx( DirectXEnumCallback2, p_item,
2036                                   DDENUM_ATTACHEDSECONDARYDEVICES );
2037     }
2038
2039     FreeLibrary( hddraw_dll );
2040
2041     /* Signal change to the interface */
2042     p_item->b_dirty = true;
2043
2044     return VLC_SUCCESS;
2045 }
2046
2047 static int WallpaperCallback( vlc_object_t *p_this, char const *psz_cmd,
2048                               vlc_value_t oldval, vlc_value_t newval,
2049                               void *p_data )
2050 {
2051     VLC_UNUSED( psz_cmd ); VLC_UNUSED( oldval ); VLC_UNUSED( p_data );
2052     vout_thread_t *p_vout = (vout_thread_t *)p_this;
2053
2054     if( (newval.b_bool && !p_vout->p_sys->b_wallpaper) ||
2055         (!newval.b_bool && p_vout->p_sys->b_wallpaper) )
2056     {
2057         playlist_t *p_playlist = pl_Hold( p_vout );
2058
2059         if( p_playlist )
2060         {
2061             /* Modify playlist as well because the vout might have to be
2062              * restarted */
2063             var_Create( p_playlist, "directx-wallpaper", VLC_VAR_BOOL );
2064             var_Set( p_playlist, "directx-wallpaper", newval );
2065             pl_Release( p_vout );
2066         }
2067
2068         p_vout->p_sys->i_changes |= DX_WALLPAPER_CHANGE;
2069     }
2070
2071     return VLC_SUCCESS;
2072 }
2073
2074 /*****************************************************************************
2075  * SetPalette: sets an 8 bpp palette
2076  *****************************************************************************/
2077 static void SetPalette( vout_thread_t *p_vout,
2078                         uint16_t *red, uint16_t *green, uint16_t *blue )
2079 {
2080     VLC_UNUSED( red ); VLC_UNUSED( green );VLC_UNUSED( blue );
2081     msg_Err( p_vout, "FIXME: SetPalette unimplemented" );
2082 }