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 <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 * );
 102 static void FreePictureVec ( vout_thread_t *, picture_t *, int );
 103 static int  UpdatePictureStruct( vout_thread_t *, picture_t * );
 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 = calloc( 1, sizeof( vout_sys_t ) );
 212     if( p_vout->p_sys == NULL )
 213         return VLC_ENOMEM;
 214
 215     /* Initialisations */
 216     p_vout->pf_init = Init;
 217     p_vout->pf_end = End;
 218     p_vout->pf_manage = Manage;
 219     p_vout->pf_render = NULL;
 220     p_vout->pf_display = FirstDisplay;
 221
 222     p_vout->p_sys->p_ddobject = NULL;
 223     p_vout->p_sys->p_display = NULL;
 224     p_vout->p_sys->p_current_surface = NULL;
 225     p_vout->p_sys->p_clipper = NULL;
 226     p_vout->p_sys->hwnd = p_vout->p_sys->hvideownd = NULL;
 227     p_vout->p_sys->hparent = p_vout->p_sys->hfswnd = NULL;
 228     p_vout->p_sys->i_changes = 0;
 229     p_vout->p_sys->b_wallpaper = 0;
 230     vlc_mutex_init( &p_vout->p_sys->lock );
 231     SetRectEmpty( &p_vout->p_sys->rect_display );
 232     SetRectEmpty( &p_vout->p_sys->rect_parent );
 233
 234     /* Multimonitor stuff */
 235     p_vout->p_sys->hmonitor = NULL;
 236     p_vout->p_sys->p_display_driver = NULL;
 237     p_vout->p_sys->MonitorFromWindow = NULL;
 238     p_vout->p_sys->GetMonitorInfo = NULL;
 239     if( (huser32 = GetModuleHandle( _T("USER32") ) ) )
 240     {
 241         p_vout->p_sys->MonitorFromWindow = (HMONITOR (WINAPI *)( HWND, DWORD ))
 242             GetProcAddress( huser32, _T("MonitorFromWindow") );
 243         p_vout->p_sys->GetMonitorInfo =
 244 #ifndef UNICODE
 245             GetProcAddress( huser32, "GetMonitorInfoA" );
 246 #else
 247             GetProcAddress( huser32, _T("GetMonitorInfoW") );
 248 #endif
 249     }
 250
 251     var_Create( p_vout, "overlay", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 252     var_Create( p_vout, "directx-use-sysmem", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 253     var_Create( p_vout, "directx-hw-yuv", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 254     var_Create( p_vout, "directx-3buffering", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 255     var_Create( p_vout, "directx-device", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 256     var_Create( p_vout, "video-title", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 257     var_Create( p_vout, "disable-screensaver", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
 258
 259     p_vout->p_sys->b_cursor_hidden = 0;
 260     p_vout->p_sys->i_lastmoved = mdate();
 261     p_vout->p_sys->i_mouse_hide_timeout =
 262         var_GetInteger(p_vout, "mouse-hide-timeout") * 1000;
 263
 264     /* Set main window's size */
 265     p_vout->p_sys->i_window_width = p_vout->i_window_width;
 266     p_vout->p_sys->i_window_height = p_vout->i_window_height;
 267
 268     if ( !CreateEventThread( p_vout ) )
 269         goto error;
 270
 271     /* Initialise DirectDraw */
 272     if( DirectXInitDDraw( p_vout ) )
 273     {
 274         msg_Err( p_vout, "cannot initialize DirectX DirectDraw" );
 275         goto error;
 276     }
 277
 278     /* Create the directx display */
 279     if( DirectXCreateDisplay( p_vout ) )
 280     {
 281         msg_Err( p_vout, "cannot initialize DirectX DirectDraw" );
 282         goto error;
 283     }
 284
 285     /* Variable to indicate if the window should be on top of others */
 286     /* Trigger a callback right now */
 287     var_TriggerCallback( p_vout, "video-on-top" );
 288
 289     /* Variable to indicate if the window should be on top of others */
 290     /* Trigger a callback right now */
 291     var_Create( p_vout, "directx-wallpaper", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );
 292     val.psz_string = _("Wallpaper");
 293     var_Change( p_vout, "directx-wallpaper", VLC_VAR_SETTEXT, &val, NULL );
 294     var_AddCallback( p_vout, "directx-wallpaper", WallpaperCallback, NULL );
 295     var_TriggerCallback( p_vout, "directx-wallpaper" );
 296
 297     DisableScreensaver ( p_vout );
 298
 299     return VLC_SUCCESS;
 300
 301  error:
 302     CloseVideo( VLC_OBJECT(p_vout) );
 303     return VLC_EGENERIC;
 304 }
 305
 306 /*****************************************************************************
 307  * Init: initialize DirectX video thread output method
 308  *****************************************************************************
 309  * This function create the directx surfaces needed by the output thread.
 310  * It is called at the beginning of the thread.
 311  *****************************************************************************/
 312 static int Init( vout_thread_t *p_vout )
 313 {
 314     int i_chroma_backup;
 315
 316     /* Get a few default parameters */
 317     p_vout->p_sys->b_using_overlay = var_GetBool( p_vout, "overlay" );
 318     p_vout->p_sys->b_use_sysmem = var_GetBool( p_vout, "directx-use-sysmem" );
 319     p_vout->p_sys->b_hw_yuv = var_GetBool( p_vout, "directx-hw-yuv" );
 320     p_vout->p_sys->b_3buf_overlay = var_GetBool( p_vout, "directx-3buffering" );
 321
 322     /* Initialise DirectDraw if not already done.
 323      * We do this here because on multi-monitor systems we may have to
 324      * re-create the directdraw surfaces. */
 325     if( !p_vout->p_sys->p_ddobject &&
 326         DirectXInitDDraw( p_vout ) != VLC_SUCCESS )
 327     {
 328         msg_Err( p_vout, "cannot initialize DirectDraw" );
 329         return VLC_EGENERIC;
 330     }
 331
 332     /* Create the directx display */
 333     if( !p_vout->p_sys->p_display &&
 334         DirectXCreateDisplay( p_vout ) != VLC_SUCCESS )
 335     {
 336         msg_Err( p_vout, "cannot initialize DirectDraw" );
 337         return VLC_EGENERIC;
 338     }
 339
 340     /* Initialize the output structure.
 341      * Since DirectDraw can do rescaling for us, stick to the default
 342      * coordinates and aspect. */
 343     p_vout->output.i_width  = p_vout->render.i_width;
 344     p_vout->output.i_height = p_vout->render.i_height;
 345     p_vout->output.i_aspect = p_vout->render.i_aspect;
 346     p_vout->fmt_out = p_vout->fmt_in;
 347     UpdateRects( p_vout, true );
 348
 349 #define MAX_DIRECTBUFFERS 1
 350     /* Right now we use only 1 directbuffer because we don't want the
 351      * video decoder to decode directly into direct buffers as they are
 352      * created into video memory and video memory is _really_ slow */
 353
 354     /* Choose the chroma we will try first. */
 355     switch( p_vout->render.i_chroma )
 356     {
 357         case VLC_CODEC_YUYV:
 358             p_vout->output.i_chroma = VLC_CODEC_YUYV;
 359             break;
 360         case VLC_CODEC_UYVY:
 361             p_vout->output.i_chroma = VLC_CODEC_UYVY;
 362             break;
 363         case VLC_CODEC_YVYU:
 364             p_vout->output.i_chroma = VLC_CODEC_YVYU;
 365             break;
 366         default:
 367             p_vout->output.i_chroma = VLC_CODEC_YV12;
 368             break;
 369     }
 370
 371     NewPictureVec( p_vout, p_vout->p_picture );
 372
 373     i_chroma_backup = p_vout->output.i_chroma;
 374
 375     if( !I_OUTPUTPICTURES )
 376     {
 377         /* hmmm, it didn't work! Let's try commonly supported chromas */
 378         if( p_vout->output.i_chroma != VLC_CODEC_I420 )
 379         {
 380             p_vout->output.i_chroma = VLC_CODEC_YV12;
 381             NewPictureVec( p_vout, p_vout->p_picture );
 382         }
 383         if( !I_OUTPUTPICTURES )
 384         {
 385             /* hmmm, it still didn't work! Let's try another one */
 386             p_vout->output.i_chroma = VLC_CODEC_YUYV;
 387             NewPictureVec( p_vout, p_vout->p_picture );
 388         }
 389     }
 390
 391     if( !I_OUTPUTPICTURES )
 392     {
 393         /* If it still didn't work then don't try to use an overlay */
 394         p_vout->output.i_chroma = i_chroma_backup;
 395         p_vout->p_sys->b_using_overlay = 0;
 396         msg_Warn( p_vout, "Could not initialize directx overlay" ) ;
 397         NewPictureVec( p_vout, p_vout->p_picture );
 398     }
 399
 400     /* Change the window title bar text */
 401     PostMessage( p_vout->p_sys->hwnd, WM_VLC_CHANGE_TEXT, 0, 0 );
 402
 403     p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
 404     return VLC_SUCCESS;
 405 }
 406
 407 /*****************************************************************************
 408  * End: terminate Sys video thread output method
 409  *****************************************************************************
 410  * Terminate an output method created by Create.
 411  * It is called at the end of the thread.
 412  *****************************************************************************/
 413 static void End( vout_thread_t *p_vout )
 414 {
 415     FreePictureVec( p_vout, p_vout->p_picture, I_OUTPUTPICTURES );
 416
 417     DirectXCloseDisplay( p_vout );
 418     DirectXCloseDDraw( p_vout );
 419
 420     return;
 421 }
 422
 423 /*****************************************************************************
 424  * CloseVideo: destroy Sys video thread output method
 425  *****************************************************************************
 426  * Terminate an output method created by Create
 427  *****************************************************************************/
 428 static void CloseVideo( vlc_object_t *p_this )
 429 {
 430     vout_thread_t * p_vout = (vout_thread_t *)p_this;
 431
 432     StopEventThread( p_vout );
 433
 434     /* Make sure the wallpaper is restored */
 435     var_DelCallback( p_vout, "directx-wallpaper", WallpaperCallback, NULL );
 436     SwitchWallpaperMode( p_vout, false );
 437
 438     RestoreScreensaver( p_vout );
 439
 440     free( p_vout->p_sys );
 441 }
 442
 443 /*****************************************************************************
 444  * Manage: handle Sys events
 445  *****************************************************************************
 446  * This function should be called regularly by the video output thread.
 447  * It returns a non null value if an error occurred.
 448  *****************************************************************************/
 449 static int Manage( vout_thread_t *p_vout )
 450 {
 451     /* If we do not control our window, we check for geometry changes
 452      * ourselves because the parent might not send us its events. */
 453     vlc_mutex_lock( &p_vout->p_sys->lock );
 454     if( p_vout->p_sys->hparent && !p_vout->b_fullscreen )
 455     {
 456         RECT rect_parent;
 457         POINT point;
 458
 459         vlc_mutex_unlock( &p_vout->p_sys->lock );
 460
 461         GetClientRect( p_vout->p_sys->hparent, &rect_parent );
 462         point.x = point.y = 0;
 463         ClientToScreen( p_vout->p_sys->hparent, &point );
 464         OffsetRect( &rect_parent, point.x, point.y );
 465
 466         if( !EqualRect( &rect_parent, &p_vout->p_sys->rect_parent ) )
 467         {
 468             p_vout->p_sys->rect_parent = rect_parent;
 469
 470             /* This one is to force the update even if only
 471              * the position has changed */
 472             SetWindowPos( p_vout->p_sys->hwnd, 0, 1, 1,
 473                           rect_parent.right - rect_parent.left,
 474                           rect_parent.bottom - rect_parent.top, 0 );
 475
 476             SetWindowPos( p_vout->p_sys->hwnd, 0, 0, 0,
 477                           rect_parent.right - rect_parent.left,
 478                           rect_parent.bottom - rect_parent.top, 0 );
 479         }
 480     }
 481     else
 482     {
 483         vlc_mutex_unlock( &p_vout->p_sys->lock );
 484     }
 485
 486     /*
 487      * Position Change
 488      */
 489     if( p_vout->p_sys->i_changes & DX_POSITION_CHANGE )
 490     {
 491         p_vout->p_sys->i_changes &= ~DX_POSITION_CHANGE;
 492
 493         /* Check if we are still on the same monitor */
 494         if( p_vout->p_sys->MonitorFromWindow &&
 495             p_vout->p_sys->hmonitor !=
 496                 p_vout->p_sys->MonitorFromWindow( p_vout->p_sys->hwnd,
 497                                                   MONITOR_DEFAULTTONEAREST ) )
 498         {
 499             /* This will force the vout core to recreate the picture buffers */
 500             p_vout->i_changes |= VOUT_PICTURE_BUFFERS_CHANGE;
 501         }
 502     }
 503
 504     /* autoscale toggle */
 505     if( p_vout->i_changes & VOUT_SCALE_CHANGE )
 506     {
 507         p_vout->i_changes &= ~VOUT_SCALE_CHANGE;
 508
 509         p_vout->b_autoscale = var_GetBool( p_vout, "autoscale" );
 510         p_vout->i_zoom = (int) ZOOM_FP_FACTOR;
 511
 512         UpdateRects( p_vout, true );
 513     }
 514
 515     /* scaling factor */
 516     if( p_vout->i_changes & VOUT_ZOOM_CHANGE )
 517     {
 518         p_vout->i_changes &= ~VOUT_ZOOM_CHANGE;
 519
 520         p_vout->b_autoscale = false;
 521         p_vout->i_zoom =
 522             (int)( ZOOM_FP_FACTOR * var_GetFloat( p_vout, "scale" ) );
 523         UpdateRects( p_vout, true );
 524     }
 525
 526     /* Check for cropping / aspect changes */
 527     if( p_vout->i_changes & VOUT_CROP_CHANGE ||
 528         p_vout->i_changes & VOUT_ASPECT_CHANGE )
 529     {
 530         p_vout->i_changes &= ~VOUT_CROP_CHANGE;
 531         p_vout->i_changes &= ~VOUT_ASPECT_CHANGE;
 532
 533         p_vout->fmt_out.i_x_offset = p_vout->fmt_in.i_x_offset;
 534         p_vout->fmt_out.i_y_offset = p_vout->fmt_in.i_y_offset;
 535         p_vout->fmt_out.i_visible_width = p_vout->fmt_in.i_visible_width;
 536         p_vout->fmt_out.i_visible_height = p_vout->fmt_in.i_visible_height;
 537         p_vout->fmt_out.i_aspect = p_vout->fmt_in.i_aspect;
 538         p_vout->fmt_out.i_sar_num = p_vout->fmt_in.i_sar_num;
 539         p_vout->fmt_out.i_sar_den = p_vout->fmt_in.i_sar_den;
 540         p_vout->output.i_aspect = p_vout->fmt_in.i_aspect;
 541         UpdateRects( p_vout, true );
 542     }
 543
 544     /* We used to call the Win32 PeekMessage function here to read the window
 545      * messages. But since window can stay blocked into this function for a
 546      * long time (for example when you move your window on the screen), I
 547      * decided to isolate PeekMessage in another thread. */
 548
 549     if( p_vout->p_sys->i_changes & DX_WALLPAPER_CHANGE )
 550     {
 551         SwitchWallpaperMode( p_vout, !p_vout->p_sys->b_wallpaper );
 552         p_vout->p_sys->i_changes &= ~DX_WALLPAPER_CHANGE;
 553         DirectDrawUpdateOverlay( p_vout );
 554     }
 555
 556     /*
 557      * Fullscreen change
 558      */
 559     if( p_vout->i_changes & VOUT_FULLSCREEN_CHANGE
 560         || p_vout->p_sys->i_changes & VOUT_FULLSCREEN_CHANGE )
 561     {
 562         Win32ToggleFullscreen( p_vout );
 563
 564         p_vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 565         p_vout->p_sys->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
 566     }
 567
 568     /*
 569      * Pointer change
 570      */
 571     if( p_vout->b_fullscreen && !p_vout->p_sys->b_cursor_hidden &&
 572         (mdate() - p_vout->p_sys->i_lastmoved) >
 573             p_vout->p_sys->i_mouse_hide_timeout )
 574     {
 575         POINT point;
 576         HWND hwnd;
 577
 578         /* Hide the cursor only if it is inside our window */
 579         GetCursorPos( &point );
 580         hwnd = WindowFromPoint(point);
 581         if( hwnd == p_vout->p_sys->hwnd || hwnd == p_vout->p_sys->hvideownd )
 582         {
 583             PostMessage( p_vout->p_sys->hwnd, WM_VLC_HIDE_MOUSE, 0, 0 );
 584         }
 585         else
 586         {
 587             p_vout->p_sys->i_lastmoved = mdate();
 588         }
 589     }
 590
 591     /*
 592      * "Always on top" status change
 593      */
 594     if( p_vout->p_sys->b_on_top_change )
 595     {
 596         vlc_value_t val;
 597         HMENU hMenu = GetSystemMenu( p_vout->p_sys->hwnd, FALSE );
 598
 599         var_Get( p_vout, "video-on-top", &val );
 600
 601         /* Set the window on top if necessary */
 602         if( val.b_bool && !( GetWindowLong( p_vout->p_sys->hwnd, GWL_EXSTYLE )
 603                            & WS_EX_TOPMOST ) )
 604         {
 605             CheckMenuItem( hMenu, IDM_TOGGLE_ON_TOP,
 606                            MF_BYCOMMAND | MFS_CHECKED );
 607             SetWindowPos( p_vout->p_sys->hwnd, HWND_TOPMOST, 0, 0, 0, 0,
 608                           SWP_NOSIZE | SWP_NOMOVE );
 609         }
 610         else
 611         /* The window shouldn't be on top */
 612         if( !val.b_bool && ( GetWindowLong( p_vout->p_sys->hwnd, GWL_EXSTYLE )
 613                            & WS_EX_TOPMOST ) )
 614         {
 615             CheckMenuItem( hMenu, IDM_TOGGLE_ON_TOP,
 616                            MF_BYCOMMAND | MFS_UNCHECKED );
 617             SetWindowPos( p_vout->p_sys->hwnd, HWND_NOTOPMOST, 0, 0, 0, 0,
 618                           SWP_NOSIZE | SWP_NOMOVE );
 619         }
 620
 621         p_vout->p_sys->b_on_top_change = false;
 622     }
 623
 624     /* Check if the event thread is still running */
 625     if( !vlc_object_alive (p_vout->p_sys->p_event) )
 626     {
 627         return VLC_EGENERIC; /* exit */
 628     }
 629
 630     return VLC_SUCCESS;
 631 }
 632
 633 /*****************************************************************************
 634  * Display: displays previously rendered output
 635  *****************************************************************************
 636  * This function sends the currently rendered image to the display, wait until
 637  * it is displayed and switch the two rendering buffers, preparing next frame.
 638  *****************************************************************************/
 639 static void Display( vout_thread_t *p_vout, picture_t *p_pic )
 640 {
 641     HRESULT dxresult;
 642
 643     if( (p_vout->p_sys->p_display == NULL) )
 644     {
 645         msg_Warn( p_vout, "no display!" );
 646         return;
 647     }
 648
 649     /* Our surface can be lost so be sure to check this
 650      * and restore it if need be */
 651     if( IDirectDrawSurface2_IsLost( p_vout->p_sys->p_display )
 652         == DDERR_SURFACELOST )
 653     {
 654         if( IDirectDrawSurface2_Restore( p_vout->p_sys->p_display ) == DD_OK &&
 655             p_vout->p_sys->b_using_overlay )
 656             DirectDrawUpdateOverlay( p_vout );
 657     }
 658
 659     if( !p_vout->p_sys->b_using_overlay )
 660     {
 661         DDBLTFX  ddbltfx;
 662
 663         /* We ask for the "NOTEARING" option */
 664         memset( &ddbltfx, 0, sizeof(DDBLTFX) );
 665         ddbltfx.dwSize = sizeof(DDBLTFX);
 666         ddbltfx.dwDDFX = DDBLTFX_NOTEARING;
 667
 668         /* Blit video surface to display */
 669         dxresult = IDirectDrawSurface2_Blt( p_vout->p_sys->p_display,
 670                                             &p_vout->p_sys->rect_dest_clipped,
 671                                             p_pic->p_sys->p_surface,
 672                                             &p_vout->p_sys->rect_src_clipped,
 673                                             DDBLT_ASYNC, &ddbltfx );
 674         if( dxresult != DD_OK )
 675         {
 676             msg_Warn( p_vout, "could not blit surface (error %li)", dxresult );
 677             return;
 678         }
 679     }
 680     else /* using overlay */
 681     {
 682         /* Flip the overlay buffers if we are using back buffers */
 683         if( p_pic->p_sys->p_front_surface == p_pic->p_sys->p_surface )
 684         {
 685             return;
 686         }
 687
 688         dxresult = IDirectDrawSurface2_Flip( p_pic->p_sys->p_front_surface,
 689                                              NULL, DDFLIP_WAIT );
 690         if( dxresult != DD_OK )
 691         {
 692             msg_Warn( p_vout, "could not flip overlay (error %li)", dxresult );
 693         }
 694
 695         /* set currently displayed pic */
 696         p_vout->p_sys->p_current_surface = p_pic->p_sys->p_front_surface;
 697
 698         /* Lock surface to get all the required info */
 699         if( DirectXLockSurface( p_vout, p_pic ) )
 700         {
 701             /* AAARRGG */
 702             msg_Warn( p_vout, "cannot lock surface" );
 703             return;
 704         }
 705         DirectXUnlockSurface( p_vout, p_pic );
 706     }
 707 }
 708
 709 /*
 710 ** this function is only used once when the first picture is received
 711 ** this function will show the video window once video is ready for
 712 ** display.
 713 */
 714
 715 static void FirstDisplay( vout_thread_t *p_vout, picture_t *p_pic )
 716 {
 717     /* get initial picture rendered on overlay surface */
 718     Display(p_vout, p_pic);
 719
 720     IDirectDraw_WaitForVerticalBlank(p_vout->p_sys->p_ddobject,
 721             DDWAITVB_BLOCKBEGIN, NULL);
 722
 723     if( p_vout->p_sys->b_using_overlay )
 724     {
 725         /* set the colorkey as the backgound brush for the video window */
 726         SetClassLongPtr( p_vout->p_sys->hvideownd, GCLP_HBRBACKGROUND,
 727                       (LONG_PTR)CreateSolidBrush( p_vout->p_sys->i_rgb_colorkey ) );
 728     }
 729     /*
 730     ** Video window is initially hidden, show it now since we got a
 731     ** picture to show.
 732     */
 733     SetWindowPos( p_vout->p_sys->hvideownd, NULL, 0, 0, 0, 0,
 734         SWP_ASYNCWINDOWPOS|
 735         SWP_FRAMECHANGED|
 736         SWP_SHOWWINDOW|
 737         SWP_NOMOVE|
 738         SWP_NOSIZE|
 739         SWP_NOZORDER );
 740
 741     /* use and restores proper display function for further pictures */
 742     p_vout->pf_display = Display;
 743 }
 744
 745 /* following functions are local */
 746
 747 /*****************************************************************************
 748  * DirectXEnumCallback: Device enumeration
 749  *****************************************************************************
 750  * This callback function is called by DirectDraw once for each
 751  * available DirectDraw device.
 752  *****************************************************************************/
 753 BOOL WINAPI DirectXEnumCallback( GUID* p_guid, LPTSTR psz_desc,
 754                                  LPTSTR psz_drivername, VOID* p_context,
 755                                  HMONITOR hmon )
 756 {
 757     vout_thread_t *p_vout = (vout_thread_t *)p_context;
 758     vlc_value_t device;
 759
 760     msg_Dbg( p_vout, "DirectXEnumCallback: %s, %s", psz_desc, psz_drivername );
 761
 762     if( hmon )
 763     {
 764         var_Get( p_vout, "directx-device", &device );
 765
 766         if( ( !device.psz_string || !*device.psz_string ) &&
 767             hmon == p_vout->p_sys->hmonitor )
 768         {
 769             free( device.psz_string );
 770         }
 771         else if( strcmp( psz_drivername, device.psz_string ) == 0 )
 772         {
 773             MONITORINFO monitor_info;
 774             monitor_info.cbSize = sizeof( MONITORINFO );
 775
 776             if( p_vout->p_sys->GetMonitorInfo( hmon, &monitor_info ) )
 777             {
 778                 RECT rect;
 779
 780                 /* Move window to the right screen */
 781                 GetWindowRect( p_vout->p_sys->hwnd, &rect );
 782                 if( !IntersectRect( &rect, &rect, &monitor_info.rcWork ) )
 783                 {
 784                     rect.left = monitor_info.rcWork.left;
 785                     rect.top = monitor_info.rcWork.top;
 786                     msg_Dbg( p_vout, "DirectXEnumCallback: setting window "
 787                              "position to %ld,%ld", rect.left, rect.top );
 788                     SetWindowPos( p_vout->p_sys->hwnd, NULL,
 789                                   rect.left, rect.top, 0, 0,
 790                                   SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 791                 }
 792             }
 793
 794             p_vout->p_sys->hmonitor = hmon;
 795             free( device.psz_string );
 796         }
 797         else
 798         {
 799             free( device.psz_string );
 800             return TRUE; /* Keep enumerating */
 801         }
 802
 803         msg_Dbg( p_vout, "selecting %s, %s", psz_desc, psz_drivername );
 804         p_vout->p_sys->p_display_driver = malloc( sizeof(GUID) );
 805         if( p_vout->p_sys->p_display_driver )
 806             memcpy( p_vout->p_sys->p_display_driver, p_guid, sizeof(GUID) );
 807     }
 808
 809     return TRUE; /* Keep enumerating */
 810 }
 811
 812 /*****************************************************************************
 813  * DirectXInitDDraw: Takes care of all the DirectDraw initialisations
 814  *****************************************************************************
 815  * This function initialise and allocate resources for DirectDraw.
 816  *****************************************************************************/
 817 static int DirectXInitDDraw( vout_thread_t *p_vout )
 818 {
 819     HRESULT dxresult;
 820     HRESULT (WINAPI *OurDirectDrawCreate)(GUID *,LPDIRECTDRAW *,IUnknown *);
 821     HRESULT (WINAPI *OurDirectDrawEnumerateEx)( LPDDENUMCALLBACKEXA, LPVOID,
 822                                                 DWORD );
 823     LPDIRECTDRAW p_ddobject;
 824
 825     msg_Dbg( p_vout, "DirectXInitDDraw" );
 826
 827     /* Load direct draw DLL */
 828     p_vout->p_sys->hddraw_dll = LoadLibrary(_T("DDRAW.DLL"));
 829     if( p_vout->p_sys->hddraw_dll == NULL )
 830     {
 831         msg_Warn( p_vout, "DirectXInitDDraw failed loading ddraw.dll" );
 832         goto error;
 833     }
 834
 835     OurDirectDrawCreate =
 836       (void *)GetProcAddress( p_vout->p_sys->hddraw_dll,
 837                               _T("DirectDrawCreate") );
 838     if( OurDirectDrawCreate == NULL )
 839     {
 840         msg_Err( p_vout, "DirectXInitDDraw failed GetProcAddress" );
 841         goto error;
 842     }
 843
 844     OurDirectDrawEnumerateEx =
 845       (void *)GetProcAddress( p_vout->p_sys->hddraw_dll,
 846 #ifndef UNICODE
 847                               "DirectDrawEnumerateExA" );
 848 #else
 849                               _T("DirectDrawEnumerateExW") );
 850 #endif
 851
 852     if( OurDirectDrawEnumerateEx && p_vout->p_sys->MonitorFromWindow )
 853     {
 854         vlc_value_t device;
 855
 856         var_Get( p_vout, "directx-device", &device );
 857         if( device.psz_string )
 858         {
 859             msg_Dbg( p_vout, "directx-device: %s", device.psz_string );
 860             free( device.psz_string );
 861         }
 862
 863         p_vout->p_sys->hmonitor =
 864             p_vout->p_sys->MonitorFromWindow( p_vout->p_sys->hwnd,
 865                                               MONITOR_DEFAULTTONEAREST );
 866
 867         /* Enumerate displays */
 868         OurDirectDrawEnumerateEx( DirectXEnumCallback, p_vout,
 869                                   DDENUM_ATTACHEDSECONDARYDEVICES );
 870     }
 871
 872     /* Initialize DirectDraw now */
 873     dxresult = OurDirectDrawCreate( p_vout->p_sys->p_display_driver,
 874                                     &p_ddobject, NULL );
 875     if( dxresult != DD_OK )
 876     {
 877         msg_Err( p_vout, "DirectXInitDDraw cannot initialize DDraw" );
 878         goto error;
 879     }
 880
 881     /* Get the IDirectDraw2 interface */
 882     dxresult = IDirectDraw_QueryInterface( p_ddobject, &IID_IDirectDraw2,
 883                                         (LPVOID *)&p_vout->p_sys->p_ddobject );
 884     /* Release the unused interface */
 885     IDirectDraw_Release( p_ddobject );
 886     if( dxresult != DD_OK )
 887     {
 888         msg_Err( p_vout, "cannot get IDirectDraw2 interface" );
 889         goto error;
 890     }
 891
 892     /* Set DirectDraw Cooperative level, ie what control we want over Windows
 893      * display */
 894     dxresult = IDirectDraw2_SetCooperativeLevel( p_vout->p_sys->p_ddobject,
 895                                                  NULL, DDSCL_NORMAL );
 896     if( dxresult != DD_OK )
 897     {
 898         msg_Err( p_vout, "cannot set direct draw cooperative level" );
 899         goto error;
 900     }
 901
 902     /* Get the size of the current display device */
 903     if( p_vout->p_sys->hmonitor && p_vout->p_sys->GetMonitorInfo )
 904     {
 905         MONITORINFO monitor_info;
 906         monitor_info.cbSize = sizeof( MONITORINFO );
 907         p_vout->p_sys->GetMonitorInfo( p_vout->p_sys->hmonitor,
 908                                        &monitor_info );
 909         p_vout->p_sys->rect_display = monitor_info.rcMonitor;
 910     }
 911     else
 912     {
 913         p_vout->p_sys->rect_display.left = 0;
 914         p_vout->p_sys->rect_display.top = 0;
 915         p_vout->p_sys->rect_display.right  = GetSystemMetrics(SM_CXSCREEN);
 916         p_vout->p_sys->rect_display.bottom = GetSystemMetrics(SM_CYSCREEN);
 917     }
 918
 919     msg_Dbg( p_vout, "screen dimensions (%lix%li,%lix%li)",
 920              p_vout->p_sys->rect_display.left,
 921              p_vout->p_sys->rect_display.top,
 922              p_vout->p_sys->rect_display.right,
 923              p_vout->p_sys->rect_display.bottom );
 924
 925     /* Probe the capabilities of the hardware */
 926     DirectXGetDDrawCaps( p_vout );
 927
 928     msg_Dbg( p_vout, "End DirectXInitDDraw" );
 929     return VLC_SUCCESS;
 930
 931  error:
 932     if( p_vout->p_sys->p_ddobject )
 933         IDirectDraw2_Release( p_vout->p_sys->p_ddobject );
 934     if( p_vout->p_sys->hddraw_dll )
 935         FreeLibrary( p_vout->p_sys->hddraw_dll );
 936     p_vout->p_sys->hddraw_dll = NULL;
 937     p_vout->p_sys->p_ddobject = NULL;
 938     return VLC_EGENERIC;
 939 }
 940
 941 /*****************************************************************************
 942  * DirectXCreateDisplay: create the DirectDraw display.
 943  *****************************************************************************
 944  * Create and initialize display according to preferences specified in the vout
 945  * thread fields.
 946  *****************************************************************************/
 947 static int DirectXCreateDisplay( vout_thread_t *p_vout )
 948 {
 949     HRESULT              dxresult;
 950     DDSURFACEDESC        ddsd;
 951     LPDIRECTDRAWSURFACE  p_display;
 952
 953     msg_Dbg( p_vout, "DirectXCreateDisplay" );
 954
 955     /* Now get the primary surface. This surface is what you actually see
 956      * on your screen */
 957     memset( &ddsd, 0, sizeof( DDSURFACEDESC ));
 958     ddsd.dwSize = sizeof(DDSURFACEDESC);
 959     ddsd.dwFlags = DDSD_CAPS;
 960     ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
 961
 962     dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
 963                                            &ddsd, &p_display, NULL );
 964     if( dxresult != DD_OK )
 965     {
 966         msg_Err( p_vout, "cannot get primary surface (error %li)", dxresult );
 967         return VLC_EGENERIC;
 968     }
 969
 970     dxresult = IDirectDrawSurface_QueryInterface( p_display,
 971                                          &IID_IDirectDrawSurface2,
 972                                          (LPVOID *)&p_vout->p_sys->p_display );
 973     /* Release the old interface */
 974     IDirectDrawSurface_Release( p_display );
 975     if ( dxresult != DD_OK )
 976     {
 977         msg_Err( p_vout, "cannot query IDirectDrawSurface2 interface "
 978                          "(error %li)", dxresult );
 979         return VLC_EGENERIC;
 980     }
 981
 982     /* The clipper will be used only in non-overlay mode */
 983     DirectXCreateClipper( p_vout );
 984
 985     /* Make sure the colorkey will be painted */
 986     p_vout->p_sys->i_colorkey = 1;
 987     p_vout->p_sys->i_rgb_colorkey =
 988         DirectXFindColorkey( p_vout, &p_vout->p_sys->i_colorkey );
 989
 990     UpdateRects( p_vout, true );
 991
 992     return VLC_SUCCESS;
 993 }
 994
 995 /*****************************************************************************
 996  * DirectXCreateClipper: Create a clipper that will be used when blitting the
 997  *                       RGB surface to the main display.
 998  *****************************************************************************
 999  * This clipper prevents us to modify by mistake anything on the screen
1000  * which doesn't belong to our window. For example when a part of our video
1001  * window is hidden by another window.
1002  *****************************************************************************/
1003 static int DirectXCreateClipper( vout_thread_t *p_vout )
1004 {
1005     HRESULT dxresult;
1006
1007     msg_Dbg( p_vout, "DirectXCreateClipper" );
1008
1009     /* Create the clipper */
1010     dxresult = IDirectDraw2_CreateClipper( p_vout->p_sys->p_ddobject, 0,
1011                                            &p_vout->p_sys->p_clipper, NULL );
1012     if( dxresult != DD_OK )
1013     {
1014         msg_Warn( p_vout, "cannot create clipper (error %li)", dxresult );
1015         goto error;
1016     }
1017
1018     /* Associate the clipper to the window */
1019     dxresult = IDirectDrawClipper_SetHWnd( p_vout->p_sys->p_clipper, 0,
1020                                            p_vout->p_sys->hvideownd );
1021     if( dxresult != DD_OK )
1022     {
1023         msg_Warn( p_vout, "cannot attach clipper to window (error %li)",
1024                           dxresult );
1025         goto error;
1026     }
1027
1028     /* associate the clipper with the surface */
1029     dxresult = IDirectDrawSurface_SetClipper(p_vout->p_sys->p_display,
1030                                              p_vout->p_sys->p_clipper);
1031     if( dxresult != DD_OK )
1032     {
1033         msg_Warn( p_vout, "cannot attach clipper to surface (error %li)",
1034                           dxresult );
1035         goto error;
1036     }
1037
1038     return VLC_SUCCESS;
1039
1040  error:
1041     if( p_vout->p_sys->p_clipper )
1042     {
1043         IDirectDrawClipper_Release( p_vout->p_sys->p_clipper );
1044     }
1045     p_vout->p_sys->p_clipper = NULL;
1046     return VLC_EGENERIC;
1047 }
1048
1049 /*****************************************************************************
1050  * DirectXCreateSurface: create an YUV overlay or RGB surface for the video.
1051  *****************************************************************************
1052  * The best method of display is with an YUV overlay because the YUV->RGB
1053  * conversion is done in hardware.
1054  * You can also create a plain RGB surface.
1055  * ( Maybe we could also try an RGB overlay surface, which could have hardware
1056  * scaling and which would also be faster in window mode because you don't
1057  * need to do any blitting to the main display...)
1058  *****************************************************************************/
1059 static int DirectXCreateSurface( vout_thread_t *p_vout,
1060                                  LPDIRECTDRAWSURFACE2 *pp_surface_final,
1061                                  int i_chroma, int b_overlay,
1062                                  int i_backbuffers )
1063 {
1064     HRESULT dxresult;
1065     LPDIRECTDRAWSURFACE p_surface;
1066     DDSURFACEDESC ddsd;
1067
1068     /* Create the video surface */
1069     if( b_overlay )
1070     {
1071         /* Now try to create the YUV overlay surface.
1072          * This overlay will be displayed on top of the primary surface.
1073          * A color key is used to determine whether or not the overlay will be
1074          * displayed, ie the overlay will be displayed in place of the primary
1075          * surface wherever the primary surface will have this color.
1076          * The video window has been created with a background of this color so
1077          * the overlay will be only displayed on top of this window */
1078
1079         memset( &ddsd, 0, sizeof( DDSURFACEDESC ));
1080         ddsd.dwSize = sizeof(DDSURFACEDESC);
1081         ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1082         ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
1083         ddsd.ddpfPixelFormat.dwFourCC = i_chroma;
1084         ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT;
1085         ddsd.dwFlags |= (i_backbuffers ? DDSD_BACKBUFFERCOUNT : 0);
1086         ddsd.ddsCaps.dwCaps = DDSCAPS_OVERLAY | DDSCAPS_VIDEOMEMORY;
1087         ddsd.ddsCaps.dwCaps |= (i_backbuffers ? DDSCAPS_COMPLEX | DDSCAPS_FLIP
1088                                 : 0 );
1089         ddsd.dwHeight = p_vout->render.i_height;
1090         ddsd.dwWidth = p_vout->render.i_width;
1091         ddsd.dwBackBufferCount = i_backbuffers;
1092
1093         dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1094                                                &ddsd, &p_surface, NULL );
1095         if( dxresult != DD_OK )
1096         {
1097             *pp_surface_final = NULL;
1098             return VLC_EGENERIC;
1099         }
1100     }
1101
1102     if( !b_overlay )
1103     {
1104         bool b_rgb_surface =
1105             ( i_chroma == VLC_CODEC_RGB8 )
1106           || ( i_chroma == VLC_CODEC_RGB15 )
1107            || ( i_chroma == VLC_CODEC_RGB16 )
1108             || ( i_chroma == VLC_CODEC_RGB24 )
1109              || ( i_chroma == VLC_CODEC_RGB32 );
1110
1111         memset( &ddsd, 0, sizeof( DDSURFACEDESC ) );
1112         ddsd.dwSize = sizeof(DDSURFACEDESC);
1113         ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1114         ddsd.dwFlags = DDSD_HEIGHT | DDSD_WIDTH | DDSD_CAPS;
1115         ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
1116         ddsd.dwHeight = p_vout->render.i_height;
1117         ddsd.dwWidth = p_vout->render.i_width;
1118
1119         if( p_vout->p_sys->b_use_sysmem )
1120             ddsd.ddsCaps.dwCaps |= DDSCAPS_SYSTEMMEMORY;
1121         else
1122             ddsd.ddsCaps.dwCaps |= DDSCAPS_VIDEOMEMORY;
1123
1124         if( !b_rgb_surface )
1125         {
1126             ddsd.dwFlags |= DDSD_PIXELFORMAT;
1127             ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
1128             ddsd.ddpfPixelFormat.dwFourCC = i_chroma;
1129         }
1130
1131         dxresult = IDirectDraw2_CreateSurface( p_vout->p_sys->p_ddobject,
1132                                                &ddsd, &p_surface, NULL );
1133         if( dxresult != DD_OK )
1134         {
1135             *pp_surface_final = NULL;
1136             return VLC_EGENERIC;
1137         }
1138     }
1139
1140     /* Now that the surface is created, try to get a newer DirectX interface */
1141     dxresult = IDirectDrawSurface_QueryInterface( p_surface,
1142                                      &IID_IDirectDrawSurface2,
1143                                      (LPVOID *)pp_surface_final );
1144     IDirectDrawSurface_Release( p_surface );    /* Release the old interface */
1145     if ( dxresult != DD_OK )
1146     {
1147         msg_Err( p_vout, "cannot query IDirectDrawSurface2 interface "
1148                          "(error %li)", dxresult );
1149         *pp_surface_final = NULL;
1150         return VLC_EGENERIC;
1151     }
1152
1153     if( b_overlay )
1154     {
1155         /* Check the overlay is useable as some graphics cards allow creating
1156          * several overlays but only one can be used at one time. */
1157         p_vout->p_sys->p_current_surface = *pp_surface_final;
1158         if( DirectDrawUpdateOverlay( p_vout ) != VLC_SUCCESS )
1159         {
1160             IDirectDrawSurface2_Release( *pp_surface_final );
1161             *pp_surface_final = NULL;
1162             msg_Err( p_vout, "overlay unuseable (might already be in use)" );
1163             return VLC_EGENERIC;
1164         }
1165     }
1166
1167     return VLC_SUCCESS;
1168 }
1169
1170 /*****************************************************************************
1171  * DirectDrawUpdateOverlay: Move or resize overlay surface on video display.
1172  *****************************************************************************
1173  * This function is used to move or resize an overlay surface on the screen.
1174  * Ususally the overlay is moved by the user and thus, by a move or resize
1175  * event (in Manage).
1176  *****************************************************************************/
1177 int DirectDrawUpdateOverlay( vout_thread_t *p_vout )
1178 {
1179     DDOVERLAYFX     ddofx;
1180     DWORD           dwFlags;
1181     HRESULT         dxresult;
1182     RECT            rect_src = p_vout->p_sys->rect_src_clipped;
1183     RECT            rect_dest = p_vout->p_sys->rect_dest_clipped;
1184
1185     if( !p_vout->p_sys->b_using_overlay ) return VLC_EGENERIC;
1186
1187     if( p_vout->p_sys->b_wallpaper )
1188     {
1189         int i_x, i_y, i_width, i_height;
1190
1191         rect_src.left = p_vout->fmt_out.i_x_offset;
1192         rect_src.top = p_vout->fmt_out.i_y_offset;
1193         rect_src.right = rect_src.left + p_vout->fmt_out.i_visible_width;
1194         rect_src.bottom = rect_src.top + p_vout->fmt_out.i_visible_height;
1195
1196         rect_dest = p_vout->p_sys->rect_display;
1197         vout_PlacePicture( p_vout, rect_dest.right, rect_dest.bottom,
1198                            &i_x, &i_y, &i_width, &i_height );
1199
1200         rect_dest.left += i_x;
1201         rect_dest.right = rect_dest.left + i_width;
1202         rect_dest.top += i_y;
1203         rect_dest.bottom = rect_dest.top + i_height;
1204     }
1205
1206     vlc_mutex_lock( &p_vout->p_sys->lock );
1207     if( p_vout->p_sys->p_current_surface == NULL )
1208     {
1209         vlc_mutex_unlock( &p_vout->p_sys->lock );
1210         return VLC_EGENERIC;
1211     }
1212
1213     /* The new window dimensions should already have been computed by the
1214      * caller of this function */
1215
1216     /* Position and show the overlay */
1217     memset(&ddofx, 0, sizeof(DDOVERLAYFX));
1218     ddofx.dwSize = sizeof(DDOVERLAYFX);
1219     ddofx.dckDestColorkey.dwColorSpaceLowValue = p_vout->p_sys->i_colorkey;
1220     ddofx.dckDestColorkey.dwColorSpaceHighValue = p_vout->p_sys->i_colorkey;
1221
1222     dwFlags = DDOVER_SHOW | DDOVER_KEYDESTOVERRIDE;
1223
1224     dxresult = IDirectDrawSurface2_UpdateOverlay(
1225                    p_vout->p_sys->p_current_surface,
1226                    &rect_src, p_vout->p_sys->p_display, &rect_dest,
1227                    dwFlags, &ddofx );
1228
1229     vlc_mutex_unlock( &p_vout->p_sys->lock );
1230
1231     if(dxresult != DD_OK)
1232     {
1233         msg_Warn( p_vout, "DirectDrawUpdateOverlay cannot move/resize overlay" );
1234         return VLC_EGENERIC;
1235     }
1236
1237     return VLC_SUCCESS;
1238 }
1239
1240 /*****************************************************************************
1241  * DirectXCloseDDraw: Release the DDraw object allocated by DirectXInitDDraw
1242  *****************************************************************************
1243  * This function returns all resources allocated by DirectXInitDDraw.
1244  *****************************************************************************/
1245 static void DirectXCloseDDraw( vout_thread_t *p_vout )
1246 {
1247     msg_Dbg( p_vout, "DirectXCloseDDraw" );
1248     if( p_vout->p_sys->p_ddobject != NULL )
1249     {
1250         IDirectDraw2_Release(p_vout->p_sys->p_ddobject);
1251         p_vout->p_sys->p_ddobject = NULL;
1252     }
1253
1254     if( p_vout->p_sys->hddraw_dll != NULL )
1255     {
1256         FreeLibrary( p_vout->p_sys->hddraw_dll );
1257         p_vout->p_sys->hddraw_dll = NULL;
1258     }
1259
1260     free( p_vout->p_sys->p_display_driver );
1261     p_vout->p_sys->p_display_driver = NULL;
1262
1263     p_vout->p_sys->hmonitor = NULL;
1264 }
1265
1266 /*****************************************************************************
1267  * DirectXCloseDisplay: close and reset the DirectX display device
1268  *****************************************************************************
1269  * This function returns all resources allocated by DirectXCreateDisplay.
1270  *****************************************************************************/
1271 static void DirectXCloseDisplay( vout_thread_t *p_vout )
1272 {
1273     msg_Dbg( p_vout, "DirectXCloseDisplay" );
1274
1275     if( p_vout->p_sys->p_clipper != NULL )
1276     {
1277         msg_Dbg( p_vout, "DirectXCloseDisplay clipper" );
1278         IDirectDrawClipper_Release( p_vout->p_sys->p_clipper );
1279         p_vout->p_sys->p_clipper = NULL;
1280     }
1281
1282     if( p_vout->p_sys->p_display != NULL )
1283     {
1284         msg_Dbg( p_vout, "DirectXCloseDisplay display" );
1285         IDirectDrawSurface2_Release( p_vout->p_sys->p_display );
1286         p_vout->p_sys->p_display = NULL;
1287     }
1288 }
1289
1290 /*****************************************************************************
1291  * DirectXCloseSurface: close the YUV overlay or RGB surface.
1292  *****************************************************************************
1293  * This function returns all resources allocated for the surface.
1294  *****************************************************************************/
1295 static void DirectXCloseSurface( vout_thread_t *p_vout,
1296                                  LPDIRECTDRAWSURFACE2 p_surface )
1297 {
1298     msg_Dbg( p_vout, "DirectXCloseSurface" );
1299     if( p_surface != NULL )
1300     {
1301         IDirectDrawSurface2_Release( p_surface );
1302     }
1303 }
1304
1305 /*****************************************************************************
1306  * NewPictureVec: allocate a picture
1307  * FIXME? make it work for i_num_pic pictures...
1308  *****************************************************************************
1309  * Returns 0 on success, -1 otherwise
1310  *****************************************************************************/
1311 static int NewPictureVec( vout_thread_t *p_vout, picture_t *p_pic )
1312 {
1313     int i;
1314     int i_ret = VLC_SUCCESS;
1315     LPDIRECTDRAWSURFACE2 p_surface;
1316
1317     msg_Dbg( p_vout, "NewPictureVec overlay:%s chroma:%.4s",
1318              p_vout->p_sys->b_using_overlay ? "yes" : "no",
1319              (char *)&p_vout->output.i_chroma );
1320
1321     I_OUTPUTPICTURES = 0;
1322
1323     /* First we try to use an YUV overlay surface.
1324      * The overlay surface that we create won't be used to decode directly
1325      * into it because accessing video memory directly is way to slow (remember
1326      * that pictures are decoded macroblock per macroblock). Instead the video
1327      * will be decoded in picture buffers in system memory which will then be
1328      * memcpy() to the overlay surface. */
1329     if( p_vout->p_sys->b_using_overlay )
1330     {
1331         /* Triple buffering rocks! it doesn't have any processing overhead
1332          * (you don't have to wait for the vsync) and provides for a very nice
1333          * video quality (no tearing). */
1334         if( p_vout->p_sys->b_3buf_overlay )
1335             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1336                                           p_vout->output.i_chroma,
1337                                           p_vout->p_sys->b_using_overlay,
1338                                           2 /* number of backbuffers */ );
1339
1340         if( !p_vout->p_sys->b_3buf_overlay || i_ret != VLC_SUCCESS )
1341         {
1342             /* Try to reduce the number of backbuffers */
1343             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1344                                           p_vout->output.i_chroma,
1345                                           p_vout->p_sys->b_using_overlay,
1346                                           0 /* number of backbuffers */ );
1347         }
1348
1349         if( i_ret == VLC_SUCCESS )
1350         {
1351             DDSCAPS dds_caps;
1352             picture_t front_pic;
1353             picture_sys_t front_pic_sys;
1354             front_pic.p_sys = &front_pic_sys;
1355
1356             /* Allocate internal structure */
1357             p_pic[0].p_sys = malloc( sizeof( picture_sys_t ) );
1358             if( p_pic[0].p_sys == NULL )
1359             {
1360                 DirectXCloseSurface( p_vout, p_surface );
1361                 return VLC_ENOMEM;
1362             }
1363
1364             /* set front buffer */
1365             p_pic[0].p_sys->p_front_surface = p_surface;
1366
1367             /* Get the back buffer */
1368             memset( &dds_caps, 0, sizeof( DDSCAPS ) );
1369             dds_caps.dwCaps = DDSCAPS_BACKBUFFER;
1370             if( DD_OK != IDirectDrawSurface2_GetAttachedSurface(
1371                                                 p_surface, &dds_caps,
1372                                                 &p_pic[0].p_sys->p_surface ) )
1373             {
1374                 msg_Warn( p_vout, "NewPictureVec could not get back buffer" );
1375                 /* front buffer is the same as back buffer */
1376                 p_pic[0].p_sys->p_surface = p_surface;
1377             }
1378
1379
1380             p_vout->p_sys->p_current_surface = front_pic.p_sys->p_surface =
1381                 p_pic[0].p_sys->p_front_surface;
1382
1383             /* Reset the front buffer memory */
1384             if( DirectXLockSurface( p_vout, &front_pic ) == VLC_SUCCESS )
1385             {
1386                 int i,j;
1387                 for( i = 0; i < front_pic.i_planes; i++ )
1388                     for( j = 0; j < front_pic.p[i].i_visible_lines; j++)
1389                         memset( front_pic.p[i].p_pixels + j *
1390                                 front_pic.p[i].i_pitch, 127,
1391                                 front_pic.p[i].i_visible_pitch );
1392
1393                 DirectXUnlockSurface( p_vout, &front_pic );
1394             }
1395
1396             DirectDrawUpdateOverlay( p_vout );
1397             I_OUTPUTPICTURES = 1;
1398             msg_Dbg( p_vout, "YUV overlay created successfully" );
1399         }
1400     }
1401
1402     /* As we can't have an overlay, we'll try to create a plain offscreen
1403      * surface. This surface will reside in video memory because there's a
1404      * better chance then that we'll be able to use some kind of hardware
1405      * acceleration like rescaling, blitting or YUV->RGB conversions.
1406      * We then only need to blit this surface onto the main display when we
1407      * want to display it */
1408     if( !p_vout->p_sys->b_using_overlay )
1409     {
1410         if( p_vout->p_sys->b_hw_yuv )
1411         {
1412             DWORD i_codes;
1413             DWORD *pi_codes;
1414             bool b_result = false;
1415
1416             /* Check if the chroma is supported first. This is required
1417              * because a few buggy drivers don't mind creating the surface
1418              * even if they don't know about the chroma. */
1419             if( IDirectDraw2_GetFourCCCodes( p_vout->p_sys->p_ddobject,
1420                                              &i_codes, NULL ) == DD_OK )
1421             {
1422                 pi_codes = malloc( i_codes * sizeof(DWORD) );
1423                 if( pi_codes && IDirectDraw2_GetFourCCCodes(
1424                     p_vout->p_sys->p_ddobject, &i_codes, pi_codes ) == DD_OK )
1425                 {
1426                     for( i = 0; i < (int)i_codes; i++ )
1427                     {
1428                         if( p_vout->output.i_chroma == pi_codes[i] )
1429                         {
1430                             b_result = true;
1431                             break;
1432                         }
1433                     }
1434                 }
1435             }
1436
1437             if( b_result )
1438                 i_ret = DirectXCreateSurface( p_vout, &p_surface,
1439                                               p_vout->output.i_chroma,
1440                                               0 /* no overlay */,
1441                                               0 /* no back buffers */ );
1442             else
1443                 p_vout->p_sys->b_hw_yuv = false;
1444         }
1445
1446         if( i_ret || !p_vout->p_sys->b_hw_yuv )
1447         {
1448             /* Our last choice is to use a plain RGB surface */
1449             DDPIXELFORMAT ddpfPixelFormat;
1450
1451             ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
1452             IDirectDrawSurface2_GetPixelFormat( p_vout->p_sys->p_display,
1453                                                 &ddpfPixelFormat );
1454
1455             if( ddpfPixelFormat.dwFlags & DDPF_RGB )
1456             {
1457                 switch( ddpfPixelFormat.dwRGBBitCount )
1458                 {
1459                 case 8:
1460                     p_vout->output.i_chroma = VLC_CODEC_RGB8;
1461                     p_vout->output.pf_setpalette = SetPalette;
1462                     break;
1463                 case 15:
1464                     p_vout->output.i_chroma = VLC_CODEC_RGB15;
1465                     break;
1466                 case 16:
1467                     p_vout->output.i_chroma = VLC_CODEC_RGB16;
1468                     break;
1469                 case 24:
1470                     p_vout->output.i_chroma = VLC_CODEC_RGB24;
1471                     break;
1472                 case 32:
1473                     p_vout->output.i_chroma = VLC_CODEC_RGB32;
1474                     break;
1475                 default:
1476                     msg_Err( p_vout, "unknown screen depth" );
1477                     return VLC_EGENERIC;
1478                 }
1479                 p_vout->output.i_rmask = ddpfPixelFormat.dwRBitMask;
1480                 p_vout->output.i_gmask = ddpfPixelFormat.dwGBitMask;
1481                 p_vout->output.i_bmask = ddpfPixelFormat.dwBBitMask;
1482             }
1483
1484             p_vout->p_sys->b_hw_yuv = 0;
1485
1486             i_ret = DirectXCreateSurface( p_vout, &p_surface,
1487                                           p_vout->output.i_chroma,
1488                                           0 /* no overlay */,
1489                                           0 /* no back buffers */ );
1490
1491             if( i_ret && !p_vout->p_sys->b_use_sysmem )
1492             {
1493                 /* Give it a last try with b_use_sysmem enabled */
1494                 p_vout->p_sys->b_use_sysmem = 1;
1495
1496                 i_ret = DirectXCreateSurface( p_vout, &p_surface,
1497                                               p_vout->output.i_chroma,
1498                                               0 /* no overlay */,
1499                                               0 /* no back buffers */ );
1500             }
1501         }
1502
1503         if( i_ret == VLC_SUCCESS )
1504         {
1505             /* Allocate internal structure */
1506             p_pic[0].p_sys = malloc( sizeof( picture_sys_t ) );
1507             if( p_pic[0].p_sys == NULL )
1508             {
1509                 DirectXCloseSurface( p_vout, p_surface );
1510                 return VLC_ENOMEM;
1511             }
1512
1513             p_pic[0].p_sys->p_surface = p_pic[0].p_sys->p_front_surface
1514                 = p_surface;
1515
1516             I_OUTPUTPICTURES = 1;
1517
1518             msg_Dbg( p_vout, "created plain surface of chroma:%.4s",
1519                      (char *)&p_vout->output.i_chroma );
1520         }
1521     }
1522
1523
1524     /* Now that we've got all our direct-buffers, we can finish filling in the
1525      * picture_t structures */
1526     for( i = 0; i < I_OUTPUTPICTURES; i++ )
1527     {
1528         p_pic[i].i_status = DESTROYED_PICTURE;
1529         p_pic[i].i_type   = DIRECT_PICTURE;
1530         p_pic[i].b_slow   = true;
1531         p_pic[i].pf_lock  = DirectXLockSurface;
1532         p_pic[i].pf_unlock = DirectXUnlockSurface;
1533         PP_OUTPUTPICTURE[i] = &p_pic[i];
1534
1535         if( DirectXLockSurface( p_vout, &p_pic[i] ) != VLC_SUCCESS )
1536         {
1537             /* AAARRGG */
1538             FreePictureVec( p_vout, p_pic, I_OUTPUTPICTURES );
1539             I_OUTPUTPICTURES = 0;
1540             msg_Err( p_vout, "cannot lock surface" );
1541             return VLC_EGENERIC;
1542         }
1543         DirectXUnlockSurface( p_vout, &p_pic[i] );
1544     }
1545
1546     msg_Dbg( p_vout, "End NewPictureVec (%s)",
1547              I_OUTPUTPICTURES ? "succeeded" : "failed" );
1548
1549     return VLC_SUCCESS;
1550 }
1551
1552 /*****************************************************************************
1553  * FreePicture: destroy a picture vector allocated with NewPictureVec
1554  *****************************************************************************
1555  *
1556  *****************************************************************************/
1557 static void FreePictureVec( vout_thread_t *p_vout, picture_t *p_pic,
1558                             int i_num_pics )
1559 {
1560     int i;
1561
1562     vlc_mutex_lock( &p_vout->p_sys->lock );
1563     p_vout->p_sys->p_current_surface = 0;
1564     vlc_mutex_unlock( &p_vout->p_sys->lock );
1565
1566     for( i = 0; i < i_num_pics; i++ )
1567     {
1568         DirectXCloseSurface( p_vout, p_pic[i].p_sys->p_front_surface );
1569
1570         for( i = 0; i < i_num_pics; i++ )
1571         {
1572             free( p_pic[i].p_sys );
1573         }
1574     }
1575 }
1576
1577 /*****************************************************************************
1578  * UpdatePictureStruct: updates the internal data in the picture_t structure
1579  *****************************************************************************
1580  * This will setup stuff for use by the video_output thread
1581  *****************************************************************************/
1582 static int UpdatePictureStruct( vout_thread_t *p_vout, picture_t *p_pic )
1583 {
1584     switch( p_vout->output.i_chroma )
1585     {
1586         case VLC_CODEC_RGB8:
1587         case VLC_CODEC_RGB15:
1588         case VLC_CODEC_RGB16:
1589         case VLC_CODEC_RGB24:
1590         case VLC_CODEC_RGB32:
1591             p_pic->p->p_pixels = p_pic->p_sys->ddsd.lpSurface;
1592             p_pic->p->i_lines = p_vout->output.i_height;
1593             p_pic->p->i_visible_lines = p_vout->output.i_height;
1594             p_pic->p->i_pitch = p_pic->p_sys->ddsd.lPitch;
1595             switch( p_vout->output.i_chroma )
1596             {
1597                 case VLC_CODEC_RGB8:
1598                     p_pic->p->i_pixel_pitch = 1;
1599                     break;
1600                 case VLC_CODEC_RGB15:
1601                 case VLC_CODEC_RGB16:
1602                     p_pic->p->i_pixel_pitch = 2;
1603                     break;
1604                 case VLC_CODEC_RGB24:
1605                     p_pic->p->i_pixel_pitch = 3;
1606                     break;
1607                 case VLC_CODEC_RGB32:
1608                     p_pic->p->i_pixel_pitch = 4;
1609                     break;
1610                 default:
1611                     return VLC_EGENERIC;
1612             }
1613             p_pic->p->i_visible_pitch = p_vout->output.i_width *
1614               p_pic->p->i_pixel_pitch;
1615             p_pic->i_planes = 1;
1616             break;
1617
1618         case VLC_CODEC_YV12:
1619
1620             /* U and V inverted compared to I420
1621              * Fixme: this should be handled by the vout core */
1622             p_vout->output.i_chroma = VLC_CODEC_I420;
1623
1624             p_pic->Y_PIXELS = p_pic->p_sys->ddsd.lpSurface;
1625             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1626             p_pic->p[Y_PLANE].i_visible_lines = p_vout->output.i_height;
1627             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->ddsd.lPitch;
1628             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1629             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width *
1630               p_pic->p[Y_PLANE].i_pixel_pitch;
1631
1632             p_pic->V_PIXELS =  p_pic->Y_PIXELS
1633               + p_pic->p[Y_PLANE].i_lines * p_pic->p[Y_PLANE].i_pitch;
1634             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1635             p_pic->p[V_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1636             p_pic->p[V_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1637             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1638             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1639               p_pic->p[V_PLANE].i_pixel_pitch;
1640
1641             p_pic->U_PIXELS = p_pic->V_PIXELS
1642               + p_pic->p[V_PLANE].i_lines * p_pic->p[V_PLANE].i_pitch;
1643             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1644             p_pic->p[U_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1645             p_pic->p[U_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1646             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1647             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1648               p_pic->p[U_PLANE].i_pixel_pitch;
1649
1650             p_pic->i_planes = 3;
1651             break;
1652
1653         case VLC_CODEC_I420:
1654
1655             p_pic->Y_PIXELS = p_pic->p_sys->ddsd.lpSurface;
1656             p_pic->p[Y_PLANE].i_lines = p_vout->output.i_height;
1657             p_pic->p[Y_PLANE].i_visible_lines = p_vout->output.i_height;
1658             p_pic->p[Y_PLANE].i_pitch = p_pic->p_sys->ddsd.lPitch;
1659             p_pic->p[Y_PLANE].i_pixel_pitch = 1;
1660             p_pic->p[Y_PLANE].i_visible_pitch = p_vout->output.i_width *
1661               p_pic->p[Y_PLANE].i_pixel_pitch;
1662
1663             p_pic->U_PIXELS = p_pic->Y_PIXELS
1664               + p_pic->p[Y_PLANE].i_lines * p_pic->p[Y_PLANE].i_pitch;
1665             p_pic->p[U_PLANE].i_lines = p_vout->output.i_height / 2;
1666             p_pic->p[U_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1667             p_pic->p[U_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1668             p_pic->p[U_PLANE].i_pixel_pitch = 1;
1669             p_pic->p[U_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1670               p_pic->p[U_PLANE].i_pixel_pitch;
1671
1672             p_pic->V_PIXELS =  p_pic->U_PIXELS
1673               + p_pic->p[U_PLANE].i_lines * p_pic->p[U_PLANE].i_pitch;
1674             p_pic->p[V_PLANE].i_lines = p_vout->output.i_height / 2;
1675             p_pic->p[V_PLANE].i_visible_lines = p_vout->output.i_height / 2;
1676             p_pic->p[V_PLANE].i_pitch = p_pic->p[Y_PLANE].i_pitch / 2;
1677             p_pic->p[V_PLANE].i_pixel_pitch = 1;
1678             p_pic->p[V_PLANE].i_visible_pitch = p_vout->output.i_width / 2 *
1679               p_pic->p[V_PLANE].i_pixel_pitch;
1680
1681             p_pic->i_planes = 3;
1682             break;
1683
1684         case VLC_CODEC_UYVY:
1685         case VLC_CODEC_YUYV:
1686
1687             p_pic->p->p_pixels = p_pic->p_sys->ddsd.lpSurface;
1688             p_pic->p->i_lines = p_vout->output.i_height;
1689             p_pic->p->i_visible_lines = p_vout->output.i_height;
1690             p_pic->p->i_pitch = p_pic->p_sys->ddsd.lPitch;
1691             p_pic->p->i_pixel_pitch = 2;
1692             p_pic->p->i_visible_pitch = p_vout->output.i_width *
1693               p_pic->p->i_pixel_pitch;
1694
1695             p_pic->i_planes = 1;
1696             break;
1697
1698         default:
1699             /* Unknown chroma, tell the guy to get lost */
1700             msg_Err( p_vout, "never heard of chroma 0x%.8x (%4.4s)",
1701                      p_vout->output.i_chroma,
1702                      (char*)&p_vout->output.i_chroma );
1703             return VLC_EGENERIC;
1704     }
1705
1706     return VLC_SUCCESS;
1707 }
1708
1709 /*****************************************************************************
1710  * DirectXGetDDrawCaps: Probe the capabilities of the hardware
1711  *****************************************************************************
1712  * It is nice to know which features are supported by the hardware so we can
1713  * find ways to optimize our rendering.
1714  *****************************************************************************/
1715 static void DirectXGetDDrawCaps( vout_thread_t *p_vout )
1716 {
1717     DDCAPS ddcaps;
1718     HRESULT dxresult;
1719
1720     /* This is just an indication of whether or not we'll support overlay,
1721      * but with this test we don't know if we support YUV overlay */
1722     memset( &ddcaps, 0, sizeof( DDCAPS ));
1723     ddcaps.dwSize = sizeof(DDCAPS);
1724     dxresult = IDirectDraw2_GetCaps( p_vout->p_sys->p_ddobject,
1725                                      &ddcaps, NULL );
1726     if(dxresult != DD_OK )
1727     {
1728         msg_Warn( p_vout, "cannot get caps" );
1729     }
1730     else
1731     {
1732         bool bHasOverlay, bHasOverlayFourCC, bCanDeinterlace,
1733              bHasColorKey, bCanStretch, bCanBltFourcc,
1734              bAlignBoundarySrc, bAlignBoundaryDest,
1735              bAlignSizeSrc, bAlignSizeDest;
1736
1737         /* Determine if the hardware supports overlay surfaces */
1738         bHasOverlay = (ddcaps.dwCaps & DDCAPS_OVERLAY) ? 1 : 0;
1739         /* Determine if the hardware supports overlay surfaces */
1740         bHasOverlayFourCC = (ddcaps.dwCaps & DDCAPS_OVERLAYFOURCC) ? 1 : 0;
1741         /* Determine if the hardware supports overlay deinterlacing */
1742         bCanDeinterlace = (ddcaps.dwCaps & DDCAPS2_CANFLIPODDEVEN) ? 1 : 0;
1743         /* Determine if the hardware supports colorkeying */
1744         bHasColorKey = (ddcaps.dwCaps & DDCAPS_COLORKEY) ? 1 : 0;
1745         /* Determine if the hardware supports scaling of the overlay surface */
1746         bCanStretch = (ddcaps.dwCaps & DDCAPS_OVERLAYSTRETCH) ? 1 : 0;
1747         /* Determine if the hardware supports color conversion during a blit */
1748         bCanBltFourcc = (ddcaps.dwCaps & DDCAPS_BLTFOURCC) ? 1 : 0;
1749         /* Determine overlay source boundary alignment */
1750         bAlignBoundarySrc = (ddcaps.dwCaps & DDCAPS_ALIGNBOUNDARYSRC) ? 1 : 0;
1751         /* Determine overlay destination boundary alignment */
1752         bAlignBoundaryDest = (ddcaps.dwCaps & DDCAPS_ALIGNBOUNDARYDEST) ? 1:0;
1753         /* Determine overlay destination size alignment */
1754         bAlignSizeSrc = (ddcaps.dwCaps & DDCAPS_ALIGNSIZESRC) ? 1 : 0;
1755         /* Determine overlay destination size alignment */
1756         bAlignSizeDest = (ddcaps.dwCaps & DDCAPS_ALIGNSIZEDEST) ? 1 : 0;
1757
1758         msg_Dbg( p_vout, "DirectDraw Capabilities: overlay=%i yuvoverlay=%i "
1759                          "can_deinterlace_overlay=%i colorkey=%i stretch=%i "
1760                          "bltfourcc=%i",
1761                          bHasOverlay, bHasOverlayFourCC, bCanDeinterlace,
1762                          bHasColorKey, bCanStretch, bCanBltFourcc );
1763
1764         if( bAlignBoundarySrc || bAlignBoundaryDest ||
1765             bAlignSizeSrc || bAlignSizeDest )
1766         {
1767             if( bAlignBoundarySrc ) p_vout->p_sys->i_align_src_boundary =
1768                 ddcaps.dwAlignBoundarySrc;
1769             if( bAlignBoundaryDest ) p_vout->p_sys->i_align_dest_boundary =
1770                 ddcaps.dwAlignBoundaryDest;
1771             if( bAlignSizeDest ) p_vout->p_sys->i_align_src_size =
1772                 ddcaps.dwAlignSizeSrc;
1773             if( bAlignSizeDest ) p_vout->p_sys->i_align_dest_size =
1774                 ddcaps.dwAlignSizeDest;
1775
1776             msg_Dbg( p_vout, "align_boundary_src=%i,%i "
1777                      "align_boundary_dest=%i,%i "
1778                      "align_size_src=%i,%i align_size_dest=%i,%i",
1779                      bAlignBoundarySrc, p_vout->p_sys->i_align_src_boundary,
1780                      bAlignBoundaryDest, p_vout->p_sys->i_align_dest_boundary,
1781                      bAlignSizeSrc, p_vout->p_sys->i_align_src_size,
1782                      bAlignSizeDest, p_vout->p_sys->i_align_dest_size );
1783         }
1784
1785         /* Don't ask for troubles */
1786         if( !bCanBltFourcc ) p_vout->p_sys->b_hw_yuv = FALSE;
1787     }
1788 }
1789
1790 /*****************************************************************************
1791  * DirectXLockSurface: Lock surface and get picture data pointer
1792  *****************************************************************************
1793  * This function locks a surface and get the surface descriptor which amongst
1794  * other things has the pointer to the picture data.
1795  *****************************************************************************/
1796 static int DirectXLockSurface( vout_thread_t *p_vout, picture_t *p_pic )
1797 {
1798     HRESULT dxresult;
1799
1800     /* Lock the surface to get a valid pointer to the picture buffer */
1801     memset( &p_pic->p_sys->ddsd, 0, sizeof( DDSURFACEDESC ));
1802     p_pic->p_sys->ddsd.dwSize = sizeof(DDSURFACEDESC);
1803     dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface,
1804                                          NULL, &p_pic->p_sys->ddsd,
1805                                          DDLOCK_NOSYSLOCK | DDLOCK_WAIT,
1806                                          NULL );
1807     if( dxresult != DD_OK )
1808     {
1809         if( dxresult == DDERR_INVALIDPARAMS )
1810         {
1811             /* DirectX 3 doesn't support the DDLOCK_NOSYSLOCK flag, resulting
1812              * in an invalid params error */
1813             dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface, NULL,
1814                                              &p_pic->p_sys->ddsd,
1815                                              DDLOCK_WAIT, NULL);
1816         }
1817         if( dxresult == DDERR_SURFACELOST )
1818         {
1819             /* Your surface can be lost so be sure
1820              * to check this and restore it if needed */
1821
1822             /* When using overlays with back-buffers, we need to restore
1823              * the front buffer so the back-buffers get restored as well. */
1824             if( p_vout->p_sys->b_using_overlay  )
1825                 IDirectDrawSurface2_Restore( p_pic->p_sys->p_front_surface );
1826             else
1827                 IDirectDrawSurface2_Restore( p_pic->p_sys->p_surface );
1828
1829             dxresult = IDirectDrawSurface2_Lock( p_pic->p_sys->p_surface, NULL,
1830                                                  &p_pic->p_sys->ddsd,
1831                                                  DDLOCK_WAIT, NULL);
1832 #ifndef NDEBUG
1833             if( dxresult == DDERR_SURFACELOST )
1834                 msg_Dbg( p_vout, "DirectXLockSurface: DDERR_SURFACELOST" );
1835 #endif
1836         }
1837         if( dxresult != DD_OK )
1838         {
1839             return VLC_EGENERIC;
1840         }
1841     }
1842
1843     /* Now we have a pointer to the surface memory, we can update our picture
1844      * structure. */
1845     if( UpdatePictureStruct( p_vout, p_pic )
1846         != VLC_SUCCESS )
1847     {
1848         DirectXUnlockSurface( p_vout, p_pic );
1849         return VLC_EGENERIC;
1850     }
1851     else
1852         return VLC_SUCCESS;
1853 }
1854
1855 /*****************************************************************************
1856  * DirectXUnlockSurface: Unlock a surface locked by DirectXLockSurface().
1857  *****************************************************************************/
1858 static int DirectXUnlockSurface( vout_thread_t *p_vout, picture_t *p_pic )
1859 {
1860     VLC_UNUSED( p_vout );
1861
1862     /* Unlock the Surface */
1863     if( IDirectDrawSurface2_Unlock( p_pic->p_sys->p_surface, NULL ) == DD_OK )
1864         return VLC_SUCCESS;
1865     else
1866         return VLC_EGENERIC;
1867 }
1868
1869 /*****************************************************************************
1870  * DirectXFindColorkey: Finds out the 32bits RGB pixel value of the colorkey
1871  *****************************************************************************/
1872 static DWORD DirectXFindColorkey( vout_thread_t *p_vout, uint32_t *pi_color )
1873 {
1874     DDSURFACEDESC ddsd;
1875     HRESULT dxresult;
1876     COLORREF i_rgb = 0;
1877     uint32_t i_pixel_backup;
1878     HDC hdc;
1879
1880     ddsd.dwSize = sizeof(ddsd);
1881     dxresult = IDirectDrawSurface2_Lock( p_vout->p_sys->p_display, NULL,
1882                                          &ddsd, DDLOCK_WAIT, NULL );
1883     if( dxresult != DD_OK ) return 0;
1884
1885     i_pixel_backup = *(uint32_t *)ddsd.lpSurface;
1886
1887     switch( ddsd.ddpfPixelFormat.dwRGBBitCount )
1888     {
1889     case 4:
1890         *(uint8_t *)ddsd.lpSurface = *pi_color | (*pi_color << 4);
1891         break;
1892     case 8:
1893         *(uint8_t *)ddsd.lpSurface = *pi_color;
1894         break;
1895     case 15:
1896     case 16:
1897         *(uint16_t *)ddsd.lpSurface = *pi_color;
1898         break;
1899     case 24:
1900         /* Seems to be problematic so we'll just put black as the colorkey */
1901         *pi_color = 0;
1902     default:
1903         *(uint32_t *)ddsd.lpSurface = *pi_color;
1904         break;
1905     }
1906
1907     IDirectDrawSurface2_Unlock( p_vout->p_sys->p_display, NULL );
1908
1909     if( IDirectDrawSurface2_GetDC( p_vout->p_sys->p_display, &hdc ) == DD_OK )
1910     {
1911         i_rgb = GetPixel( hdc, 0, 0 );
1912         IDirectDrawSurface2_ReleaseDC( p_vout->p_sys->p_display, hdc );
1913     }
1914
1915     ddsd.dwSize = sizeof(ddsd);
1916     dxresult = IDirectDrawSurface2_Lock( p_vout->p_sys->p_display, NULL,
1917                                          &ddsd, DDLOCK_WAIT, NULL );
1918     if( dxresult != DD_OK ) return i_rgb;
1919
1920     *(uint32_t *)ddsd.lpSurface = i_pixel_backup;
1921
1922     IDirectDrawSurface2_Unlock( p_vout->p_sys->p_display, NULL );
1923
1924     return i_rgb;
1925 }
1926
1927 /*****************************************************************************
1928  * A few toolbox functions
1929  *****************************************************************************/
1930 void SwitchWallpaperMode( vout_thread_t *p_vout, bool b_on )
1931 {
1932     HWND hwnd;
1933
1934     if( p_vout->p_sys->b_wallpaper == b_on ) return; /* Nothing to do */
1935
1936     hwnd = FindWindow( _T("Progman"), NULL );
1937     if( hwnd ) hwnd = FindWindowEx( hwnd, NULL, _T("SHELLDLL_DefView"), NULL );
1938     if( hwnd ) hwnd = FindWindowEx( hwnd, NULL, _T("SysListView32"), NULL );
1939     if( !hwnd )
1940     {
1941         msg_Warn( p_vout, "couldn't find \"SysListView32\" window, "
1942                   "wallpaper mode not supported" );
1943         return;
1944     }
1945
1946     p_vout->p_sys->b_wallpaper = b_on;
1947
1948     msg_Dbg( p_vout, "wallpaper mode %s", b_on ? "enabled" : "disabled" );
1949
1950     if( p_vout->p_sys->b_wallpaper )
1951     {
1952         p_vout->p_sys->color_bkg = ListView_GetBkColor( hwnd );
1953         p_vout->p_sys->color_bkgtxt = ListView_GetTextBkColor( hwnd );
1954
1955         ListView_SetBkColor( hwnd, p_vout->p_sys->i_rgb_colorkey );
1956         ListView_SetTextBkColor( hwnd, p_vout->p_sys->i_rgb_colorkey );
1957     }
1958     else if( hwnd )
1959     {
1960         ListView_SetBkColor( hwnd, p_vout->p_sys->color_bkg );
1961         ListView_SetTextBkColor( hwnd, p_vout->p_sys->color_bkgtxt );
1962     }
1963
1964     /* Update desktop */
1965     InvalidateRect( hwnd, NULL, TRUE );
1966     UpdateWindow( hwnd );
1967 }
1968
1969 /*****************************************************************************
1970  * config variable callback
1971  *****************************************************************************/
1972 BOOL WINAPI DirectXEnumCallback2( GUID* p_guid, LPTSTR psz_desc,
1973                                   LPTSTR psz_drivername, VOID* p_context,
1974                                   HMONITOR hmon )
1975 {
1976     VLC_UNUSED( p_guid ); VLC_UNUSED( psz_desc ); VLC_UNUSED( hmon );
1977
1978     module_config_t *p_item = (module_config_t *)p_context;
1979
1980     p_item->ppsz_list =
1981         (char **)realloc( p_item->ppsz_list,
1982                           (p_item->i_list+2) * sizeof(char *) );
1983     p_item->ppsz_list_text =
1984         (char **)realloc( p_item->ppsz_list_text,
1985                           (p_item->i_list+2) * sizeof(char *) );
1986
1987     p_item->ppsz_list[p_item->i_list] = strdup( psz_drivername );
1988     p_item->ppsz_list_text[p_item->i_list] = NULL;
1989     p_item->i_list++;
1990     p_item->ppsz_list[p_item->i_list] = NULL;
1991     p_item->ppsz_list_text[p_item->i_list] = NULL;
1992
1993     return TRUE; /* Keep enumerating */
1994 }
1995
1996 static int FindDevicesCallback( vlc_object_t *p_this, char const *psz_name,
1997                                vlc_value_t newval, vlc_value_t oldval, void *d)
1998 {
1999     VLC_UNUSED( newval ); VLC_UNUSED( oldval ); VLC_UNUSED( d );
2000
2001     HRESULT (WINAPI *OurDirectDrawEnumerateEx)( LPDDENUMCALLBACKEXA, LPVOID,
2002                                                 DWORD );
2003     HINSTANCE hddraw_dll;
2004
2005     module_config_t *p_item;
2006     int i;
2007
2008     p_item = config_FindConfig( p_this, psz_name );
2009     if( !p_item ) return VLC_SUCCESS;
2010
2011     /* Clear-up the current list */
2012     if( p_item->i_list )
2013     {
2014         /* Keep the first entry */
2015         for( i = 1; i < p_item->i_list; i++ )
2016         {
2017             free( p_item->ppsz_list[i] );
2018             free( p_item->ppsz_list_text[i] );
2019         }
2020         /* TODO: Remove when no more needed */
2021         p_item->ppsz_list[i] = NULL;
2022         p_item->ppsz_list_text[i] = NULL;
2023     }
2024     p_item->i_list = 1;
2025
2026     /* Load direct draw DLL */
2027     hddraw_dll = LoadLibrary(_T("DDRAW.DLL"));
2028     if( hddraw_dll == NULL ) return VLC_SUCCESS;
2029
2030     OurDirectDrawEnumerateEx =
2031 #ifndef UNICODE
2032       (void *)GetProcAddress( hddraw_dll, "DirectDrawEnumerateExA" );
2033 #else
2034       (void *)GetProcAddress( hddraw_dll, _T("DirectDrawEnumerateExW") );
2035 #endif
2036
2037     if( OurDirectDrawEnumerateEx )
2038     {
2039         /* Enumerate displays */
2040         OurDirectDrawEnumerateEx( DirectXEnumCallback2, p_item,
2041                                   DDENUM_ATTACHEDSECONDARYDEVICES );
2042     }
2043
2044     FreeLibrary( hddraw_dll );
2045
2046     /* Signal change to the interface */
2047     p_item->b_dirty = true;
2048
2049     return VLC_SUCCESS;
2050 }
2051
2052 static int WallpaperCallback( vlc_object_t *p_this, char const *psz_cmd,
2053                               vlc_value_t oldval, vlc_value_t newval,
2054                               void *p_data )
2055 {
2056     VLC_UNUSED( psz_cmd ); VLC_UNUSED( oldval ); VLC_UNUSED( p_data );
2057     vout_thread_t *p_vout = (vout_thread_t *)p_this;
2058
2059     if( (newval.b_bool && !p_vout->p_sys->b_wallpaper) ||
2060         (!newval.b_bool && p_vout->p_sys->b_wallpaper) )
2061     {
2062         playlist_t *p_playlist = pl_Hold( p_vout );
2063
2064         if( p_playlist )
2065         {
2066             /* Modify playlist as well because the vout might have to be
2067              * restarted */
2068             var_Create( p_playlist, "directx-wallpaper", VLC_VAR_BOOL );
2069             var_Set( p_playlist, "directx-wallpaper", newval );
2070             pl_Release( p_vout );
2071         }
2072
2073         p_vout->p_sys->i_changes |= DX_WALLPAPER_CHANGE;
2074     }
2075
2076     return VLC_SUCCESS;
2077 }
2078
2079 /*****************************************************************************
2080  * SetPalette: sets an 8 bpp palette
2081  *****************************************************************************/
2082 static void SetPalette( vout_thread_t *p_vout,
2083                         uint16_t *red, uint16_t *green, uint16_t *blue )
2084 {
2085     VLC_UNUSED( red ); VLC_UNUSED( green );VLC_UNUSED( blue );
2086     msg_Err( p_vout, "FIXME: SetPalette unimplemented" );
2087 }