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

   1 /*****************************************************************************
   2  * common.c:
   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 /*****************************************************************************
  26  * Preamble: This file contains the functions related to the creation of
  27  *             a window and the handling of its messages (events).
  28  *****************************************************************************/
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32 #include <assert.h>
  33
  34 #include <vlc_common.h>
  35 #include <vlc_vout_display.h>
  36 #include <vlc_vout_window.h>
  37
  38 #include <windows.h>
  39 #include <windowsx.h>
  40 #include <shellapi.h>
  41
  42 #ifdef MODULE_NAME_IS_directx
  43 #include <ddraw.h>
  44 #endif
  45 #ifdef MODULE_NAME_IS_direct3d
  46 #include <d3d9.h>
  47 #endif
  48 #ifdef MODULE_NAME_IS_glwin32
  49 #include "../opengl.h"
  50 #endif
  51
  52 #include "common.h"
  53
  54 #ifndef UNDER_CE
  55 #include <vlc_windows_interfaces.h>
  56 #endif
  57
  58 #ifdef UNDER_CE
  59 #include <aygshell.h>
  60     //WINSHELLAPI BOOL WINAPI SHFullScreen(HWND hwndRequester, DWORD dwState);
  61 #endif
  62
  63 static int CommonControlSetFullscreen(vout_display_t *, bool is_fullscreen);
  64
  65 static void DisableScreensaver(vout_display_t *);
  66 static void RestoreScreensaver(vout_display_t *);
  67
  68 /* */
  69 int CommonInit(vout_display_t *vd)
  70 {
  71     vout_display_sys_t *sys = vd->sys;
  72
  73     sys->hwnd      = NULL;
  74     sys->hvideownd = NULL;
  75     sys->hparent   = NULL;
  76     sys->hfswnd    = NULL;
  77     sys->changes   = 0;
  78     SetRectEmpty(&sys->rect_display);
  79     SetRectEmpty(&sys->rect_parent);
  80     sys->is_first_display = true;
  81     sys->is_on_top = false;
  82
  83     var_Create(vd, "video-title", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
  84     var_Create(vd, "video-deco", VLC_VAR_BOOL | VLC_VAR_DOINHERIT);
  85
  86     /* FIXME remove mouse hide from msw */
  87     var_Create(vd, "mouse-hide-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
  88
  89     /* */
  90     sys->event = EventThreadCreate(vd);
  91     if (!sys->event)
  92         return VLC_EGENERIC;
  93
  94     event_cfg_t cfg;
  95     memset(&cfg, 0, sizeof(cfg));
  96 #ifdef MODULE_NAME_IS_direct3d
  97     cfg.use_desktop = sys->use_desktop;
  98 #endif
  99 #ifdef MODULE_NAME_IS_directx
 100     cfg.use_overlay = sys->use_overlay;
 101 #endif
 102     cfg.win.type   = VOUT_WINDOW_TYPE_HWND;
 103     cfg.win.x      = 0;
 104     cfg.win.y      = 0;
 105     cfg.win.width  = vd->cfg->display.width;
 106     cfg.win.height = vd->cfg->display.height;
 107
 108     event_hwnd_t hwnd;
 109     if (EventThreadStart(sys->event, &hwnd, &cfg))
 110         return VLC_EGENERIC;
 111
 112     sys->parent_window = hwnd.parent_window;
 113     sys->hparent       = hwnd.hparent;
 114     sys->hwnd          = hwnd.hwnd;
 115     sys->hvideownd     = hwnd.hvideownd;
 116     sys->hfswnd        = hwnd.hfswnd;
 117
 118     if (vd->cfg->is_fullscreen) {
 119         if (CommonControlSetFullscreen(vd, true))
 120             vout_display_SendEventFullscreen(vd, false);
 121     }
 122
 123     /* Why not with glwin32 */
 124 #if !defined(UNDER_CE) && !defined(MODULE_NAME_IS_glwin32)
 125     var_Create(vd, "disable-screensaver", VLC_VAR_BOOL | VLC_VAR_DOINHERIT);
 126     DisableScreensaver (vd);
 127 #endif
 128
 129     return VLC_SUCCESS;
 130 }
 131
 132 /* */
 133 void CommonClean(vout_display_t *vd)
 134 {
 135     vout_display_sys_t *sys = vd->sys;
 136
 137     if (sys->event) {
 138         EventThreadStop(sys->event);
 139         EventThreadDestroy(sys->event);
 140     }
 141
 142 #if !defined(UNDER_CE) && !defined(MODULE_NAME_IS_glwin32)
 143     RestoreScreensaver(vd);
 144 #endif
 145 }
 146
 147 void CommonManage(vout_display_t *vd)
 148 {
 149     vout_display_sys_t *sys = vd->sys;
 150
 151     /* We used to call the Win32 PeekMessage function here to read the window
 152      * messages. But since window can stay blocked into this function for a
 153      * long time (for example when you move your window on the screen), I
 154      * decided to isolate PeekMessage in another thread. */
 155
 156     /* If we do not control our window, we check for geometry changes
 157      * ourselves because the parent might not send us its events. */
 158     if (sys->hparent) {
 159         RECT rect_parent;
 160         POINT point;
 161
 162         GetClientRect(sys->hparent, &rect_parent);
 163         point.x = point.y = 0;
 164         ClientToScreen(sys->hparent, &point);
 165         OffsetRect(&rect_parent, point.x, point.y);
 166
 167         if (!EqualRect(&rect_parent, &sys->rect_parent)) {
 168             sys->rect_parent = rect_parent;
 169
 170             /* FIXME I find such #ifdef quite weirds. Are they really needed ? */
 171
 172 #if defined(MODULE_NAME_IS_direct3d) || defined(MODULE_NAME_IS_wingdi) || defined(MODULE_NAME_IS_wingapi)
 173             SetWindowPos(sys->hwnd, 0, 0, 0,
 174                          rect_parent.right - rect_parent.left,
 175                          rect_parent.bottom - rect_parent.top,
 176                          SWP_NOZORDER);
 177             UpdateRects(vd, NULL, NULL, true);
 178 #else
 179             /* This one is to force the update even if only
 180              * the position has changed */
 181             SetWindowPos(sys->hwnd, 0, 1, 1,
 182                          rect_parent.right - rect_parent.left,
 183                          rect_parent.bottom - rect_parent.top, 0);
 184
 185             SetWindowPos(sys->hwnd, 0, 0, 0,
 186                          rect_parent.right - rect_parent.left,
 187                          rect_parent.bottom - rect_parent.top, 0);
 188
 189 #endif
 190         }
 191     }
 192
 193     /* */
 194     if (EventThreadGetAndResetHasMoved(sys->event))
 195         UpdateRects(vd, NULL, NULL, false);
 196
 197     /* Pointer change */
 198     EventThreadMouseAutoHide(sys->event);
 199 }
 200
 201 /**
 202  * It ensures that the video window is shown after the first picture
 203  * is displayed.
 204  */
 205 void CommonDisplay(vout_display_t *vd)
 206 {
 207     vout_display_sys_t *sys = vd->sys;
 208
 209     if (!sys->is_first_display)
 210         return;
 211
 212     /* Video window is initially hidden, show it now since we got a
 213      * picture to show.
 214      */
 215     SetWindowPos(sys->hvideownd, 0, 0, 0, 0, 0,
 216                  SWP_ASYNCWINDOWPOS|
 217                  SWP_FRAMECHANGED|
 218                  SWP_SHOWWINDOW|
 219                  SWP_NOMOVE|
 220                  SWP_NOSIZE|
 221                  SWP_NOZORDER);
 222     sys->is_first_display = false;
 223 }
 224
 225 void AlignRect(RECT *r, int align_boundary, int align_size)
 226 {
 227     if (align_boundary)
 228         r->left = (r->left + align_boundary/2) & ~align_boundary;
 229     if (align_size)
 230         r->right = ((r->right - r->left + align_size/2) & ~align_size) + r->left;
 231 }
 232
 233 /*****************************************************************************
 234  * UpdateRects: update clipping rectangles
 235  *****************************************************************************
 236  * This function is called when the window position or size are changed, and
 237  * its job is to update the source and destination RECTs used to display the
 238  * picture.
 239  *****************************************************************************/
 240 void UpdateRects(vout_display_t *vd,
 241                   const vout_display_cfg_t *cfg,
 242                   const video_format_t *source,
 243                   bool is_forced)
 244 {
 245     vout_display_sys_t *sys = vd->sys;
 246 #define rect_src sys->rect_src
 247 #define rect_src_clipped sys->rect_src_clipped
 248 #define rect_dest sys->rect_dest
 249 #define rect_dest_clipped sys->rect_dest_clipped
 250
 251     RECT  rect;
 252     POINT point;
 253
 254     /* */
 255     if (!cfg)
 256         cfg = vd->cfg;
 257     if (!source)
 258         source = &vd->source;
 259
 260     /* Retrieve the window size */
 261     GetClientRect(sys->hwnd, &rect);
 262
 263     /* Retrieve the window position */
 264     point.x = point.y = 0;
 265     ClientToScreen(sys->hwnd, &point);
 266
 267     /* If nothing changed, we can return */
 268     bool has_moved;
 269     bool is_resized;
 270     EventThreadUpdateWindowPosition(sys->event, &has_moved, &is_resized,
 271                                     point.x, point.y,
 272                                     rect.right, rect.bottom);
 273     if (is_resized)
 274         vout_display_SendEventDisplaySize(vd, rect.right, rect.bottom, cfg->is_fullscreen);
 275     if (!is_forced && !has_moved && !is_resized )
 276         return;
 277
 278     /* Update the window position and size */
 279     vout_display_cfg_t place_cfg = *cfg;
 280     place_cfg.display.width  = rect.right;
 281     place_cfg.display.height = rect.bottom;
 282
 283     vout_display_place_t place;
 284     vout_display_PlacePicture(&place, source, &place_cfg, true);
 285
 286     EventThreadUpdateSourceAndPlace(sys->event, source, &place);
 287 #if defined(MODULE_NAME_IS_wingapi)
 288     if (place.width != vd->fmt.i_width || place.height != vd->fmt.i_height)
 289         vout_display_SendEventPicturesInvalid(vd);
 290 #endif
 291
 292     if (sys->hvideownd)
 293         SetWindowPos(sys->hvideownd, 0,
 294                      place.x, place.y, place.width, place.height,
 295                      SWP_NOCOPYBITS|SWP_NOZORDER|SWP_ASYNCWINDOWPOS);
 296
 297     /* Destination image position and dimensions */
 298 #if defined(MODULE_NAME_IS_direct3d)
 299     rect_dest.left   = 0;
 300     rect_dest.right  = place.width;
 301     rect_dest.top    = 0;
 302     rect_dest.bottom = place.height;
 303 #else
 304     rect_dest.left = point.x + place.x;
 305     rect_dest.right = rect_dest.left + place.width;
 306     rect_dest.top = point.y + place.y;
 307     rect_dest.bottom = rect_dest.top + place.height;
 308
 309 #ifdef MODULE_NAME_IS_directx
 310     /* Apply overlay hardware constraints */
 311     if (sys->use_overlay)
 312         AlignRect(&rect_dest, sys->i_align_dest_boundary, sys->i_align_dest_size);
 313 #endif
 314
 315 #endif
 316
 317 #if defined(MODULE_NAME_IS_directx) || defined(MODULE_NAME_IS_direct3d)
 318     /* UpdateOverlay directdraw function doesn't automatically clip to the
 319      * display size so we need to do it otherwise it will fail
 320      * It is also needed for d3d to avoid exceding our surface size */
 321
 322     /* Clip the destination window */
 323     if (!IntersectRect(&rect_dest_clipped, &rect_dest,
 324                        &sys->rect_display)) {
 325         SetRectEmpty(&rect_src_clipped);
 326         return;
 327     }
 328
 329 #ifndef NDEBUG
 330     msg_Dbg(vd, "DirectXUpdateRects image_dst_clipped coords:"
 331                 " %li,%li,%li,%li",
 332                 rect_dest_clipped.left, rect_dest_clipped.top,
 333                 rect_dest_clipped.right, rect_dest_clipped.bottom);
 334 #endif
 335
 336 #else
 337
 338     /* AFAIK, there are no clipping constraints in Direct3D, OpenGL and GDI */
 339     rect_dest_clipped = rect_dest;
 340
 341 #endif
 342
 343     /* the 2 following lines are to fix a bug when clicking on the desktop */
 344     if ((rect_dest_clipped.right - rect_dest_clipped.left) == 0 ||
 345         (rect_dest_clipped.bottom - rect_dest_clipped.top) == 0) {
 346         SetRectEmpty(&rect_src_clipped);
 347         return;
 348     }
 349
 350     /* src image dimensions */
 351     rect_src.left   = 0;
 352     rect_src.top    = 0;
 353     rect_src.right  = source->i_width;
 354     rect_src.bottom = source->i_height;
 355
 356     /* Clip the source image */
 357     rect_src_clipped.left = source->i_x_offset +
 358       (rect_dest_clipped.left - rect_dest.left) *
 359       source->i_visible_width / (rect_dest.right - rect_dest.left);
 360     rect_src_clipped.right = source->i_x_offset +
 361       source->i_visible_width -
 362       (rect_dest.right - rect_dest_clipped.right) *
 363       source->i_visible_width / (rect_dest.right - rect_dest.left);
 364     rect_src_clipped.top = source->i_y_offset +
 365       (rect_dest_clipped.top - rect_dest.top) *
 366       source->i_visible_height / (rect_dest.bottom - rect_dest.top);
 367     rect_src_clipped.bottom = source->i_y_offset +
 368       source->i_visible_height -
 369       (rect_dest.bottom - rect_dest_clipped.bottom) *
 370       source->i_visible_height / (rect_dest.bottom - rect_dest.top);
 371
 372 #ifdef MODULE_NAME_IS_directx
 373     /* Apply overlay hardware constraints */
 374     if (sys->use_overlay)
 375         AlignRect(&rect_src_clipped, sys->i_align_src_boundary, sys->i_align_src_size);
 376 #elif defined(MODULE_NAME_IS_direct3d)
 377     /* Needed at least with YUV content */
 378     rect_src_clipped.left &= ~1;
 379     rect_src_clipped.right &= ~1;
 380     rect_src_clipped.top &= ~1;
 381     rect_src_clipped.bottom &= ~1;
 382 #endif
 383
 384 #ifndef NDEBUG
 385     msg_Dbg(vd, "DirectXUpdateRects image_src_clipped"
 386                 " coords: %li,%li,%li,%li",
 387                 rect_src_clipped.left, rect_src_clipped.top,
 388                 rect_src_clipped.right, rect_src_clipped.bottom);
 389 #endif
 390
 391 #ifdef MODULE_NAME_IS_directx
 392     /* The destination coordinates need to be relative to the current
 393      * directdraw primary surface (display) */
 394     rect_dest_clipped.left -= sys->rect_display.left;
 395     rect_dest_clipped.right -= sys->rect_display.left;
 396     rect_dest_clipped.top -= sys->rect_display.top;
 397     rect_dest_clipped.bottom -= sys->rect_display.top;
 398 #endif
 399
 400 #ifndef UNDER_CE
 401     /* Windows 7 taskbar thumbnail code */
 402     LPTASKBARLIST3 taskbl;
 403     OSVERSIONINFO winVer;
 404     winVer.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 405     if (GetVersionEx(&winVer) && winVer.dwMajorVersion > 5) {
 406         CoInitialize(0);
 407
 408         if (S_OK == CoCreateInstance(&clsid_ITaskbarList,
 409                                      NULL, CLSCTX_INPROC_SERVER,
 410                                      &IID_ITaskbarList3,
 411                                      &taskbl)) {
 412             RECT rect_video, rect_parent, rect_relative;
 413             HWND hroot = GetAncestor(sys->hwnd,GA_ROOT);
 414
 415             taskbl->vt->HrInit(taskbl);
 416             GetWindowRect(sys->hvideownd, &rect_video);
 417             GetWindowRect(hroot, &rect_parent);
 418             rect_relative.left = rect_video.left - rect_parent.left - 8;
 419             rect_relative.right = rect_video.right - rect_video.left + rect_relative.left;
 420             rect_relative.top = rect_video.top - rect_parent.top - 10;
 421             rect_relative.bottom = rect_video.bottom - rect_video.top + rect_relative.top - 25;
 422
 423             if (S_OK != taskbl->vt->SetThumbnailClip(taskbl, hroot, &rect_relative))
 424                 msg_Err(vd, "SetThumbNailClip failed");
 425
 426             taskbl->vt->Release(taskbl);
 427         }
 428         CoUninitialize();
 429     }
 430 #endif
 431     /* Signal the change in size/position */
 432     sys->changes |= DX_POSITION_CHANGE;
 433
 434 #undef rect_src
 435 #undef rect_src_clipped
 436 #undef rect_dest
 437 #undef rect_dest_clipped
 438 }
 439
 440 static int CommonControlSetFullscreen(vout_display_t *vd, bool is_fullscreen)
 441 {
 442     vout_display_sys_t *sys = vd->sys;
 443
 444 #ifdef MODULE_NAME_IS_direct3d
 445     if (sys->use_desktop && is_fullscreen)
 446         return VLC_EGENERIC;
 447 #endif
 448
 449     /* */
 450     if (sys->parent_window)
 451         return vout_window_SetFullScreen(sys->parent_window, is_fullscreen);
 452
 453     /* */
 454     HWND hwnd = sys->hparent && sys->hfswnd ? sys->hfswnd : sys->hwnd;
 455
 456     /* Save the current windows placement/placement to restore
 457        when fullscreen is over */
 458     WINDOWPLACEMENT window_placement;
 459     window_placement.length = sizeof(WINDOWPLACEMENT);
 460     GetWindowPlacement(hwnd, &window_placement);
 461
 462     if (is_fullscreen) {
 463         msg_Dbg(vd, "entering fullscreen mode");
 464
 465         /* Change window style, no borders and no title bar */
 466         SetWindowLong(hwnd, GWL_STYLE, WS_CLIPCHILDREN | WS_VISIBLE);
 467
 468         if (sys->hparent) {
 469 #ifdef UNDER_CE
 470             POINT point = {0,0};
 471             RECT rect;
 472             ClientToScreen(sys->hwnd, &point);
 473             GetClientRect(sys->hwnd, &rect);
 474             SetWindowPos(hwnd, 0, point.x, point.y,
 475                          rect.right, rect.bottom,
 476                          SWP_NOZORDER|SWP_FRAMECHANGED);
 477 #else
 478             /* Retrieve current window position so fullscreen will happen
 479             *on the right screen */
 480             HMONITOR hmon = MonitorFromWindow(sys->hparent,
 481                                               MONITOR_DEFAULTTONEAREST);
 482             MONITORINFO mi;
 483             mi.cbSize = sizeof(MONITORINFO);
 484             if (GetMonitorInfo(hmon, &mi))
 485                 SetWindowPos(hwnd, 0,
 486                              mi.rcMonitor.left,
 487                              mi.rcMonitor.top,
 488                              mi.rcMonitor.right - mi.rcMonitor.left,
 489                              mi.rcMonitor.bottom - mi.rcMonitor.top,
 490                              SWP_NOZORDER|SWP_FRAMECHANGED);
 491 #endif
 492         } else {
 493             /* Maximize non embedded window */
 494             ShowWindow(hwnd, SW_SHOWMAXIMIZED);
 495         }
 496
 497         if (sys->hparent) {
 498             /* Hide the previous window */
 499             RECT rect;
 500             GetClientRect(hwnd, &rect);
 501             SetParent(sys->hwnd, hwnd);
 502             SetWindowPos(sys->hwnd, 0, 0, 0,
 503                          rect.right, rect.bottom,
 504                          SWP_NOZORDER|SWP_FRAMECHANGED);
 505
 506 #ifdef UNDER_CE
 507             HWND topLevelParent = GetParent(sys->hparent);
 508 #else
 509             HWND topLevelParent = GetAncestor(sys->hparent, GA_ROOT);
 510 #endif
 511             ShowWindow(topLevelParent, SW_HIDE);
 512         }
 513         SetForegroundWindow(hwnd);
 514     } else {
 515         msg_Dbg(vd, "leaving fullscreen mode");
 516
 517         /* Change window style, no borders and no title bar */
 518         SetWindowLong(hwnd, GWL_STYLE, EventThreadGetWindowStyle(sys->event));
 519
 520         if (sys->hparent) {
 521             RECT rect;
 522             GetClientRect(sys->hparent, &rect);
 523             SetParent(sys->hwnd, sys->hparent);
 524             SetWindowPos(sys->hwnd, 0, 0, 0,
 525                          rect.right, rect.bottom,
 526                          SWP_NOZORDER|SWP_FRAMECHANGED);
 527
 528 #ifdef UNDER_CE
 529             HWND topLevelParent = GetParent(sys->hparent);
 530 #else
 531             HWND topLevelParent = GetAncestor(sys->hparent, GA_ROOT);
 532 #endif
 533             ShowWindow(topLevelParent, SW_SHOW);
 534             SetForegroundWindow(sys->hparent);
 535             ShowWindow(hwnd, SW_HIDE);
 536         } else {
 537             /* return to normal window for non embedded vout */
 538             SetWindowPlacement(hwnd, &window_placement);
 539             ShowWindow(hwnd, SW_SHOWNORMAL);
 540         }
 541
 542         /* Make sure the mouse cursor is displayed */
 543         EventThreadMouseShow(sys->event);
 544     }
 545     return VLC_SUCCESS;
 546 }
 547
 548 int CommonControl(vout_display_t *vd, int query, va_list args)
 549 {
 550     vout_display_sys_t *sys = vd->sys;
 551
 552     switch (query) {
 553     case VOUT_DISPLAY_CHANGE_DISPLAY_SIZE:   /* const vout_display_cfg_t *p_cfg, int is_forced */
 554     case VOUT_DISPLAY_CHANGE_DISPLAY_FILLED: /* const vout_display_cfg_t *p_cfg */
 555     case VOUT_DISPLAY_CHANGE_ZOOM:           /* const vout_display_cfg_t *p_cfg */
 556     case VOUT_DISPLAY_CHANGE_SOURCE_ASPECT:  /* const video_format_t *p_source */
 557     case VOUT_DISPLAY_CHANGE_SOURCE_CROP: {  /* const video_format_t *p_source */
 558         const vout_display_cfg_t *cfg;
 559         const video_format_t *source;
 560         bool  is_forced = true;
 561         if (query == VOUT_DISPLAY_CHANGE_SOURCE_CROP ||
 562             query == VOUT_DISPLAY_CHANGE_SOURCE_ASPECT) {
 563             cfg    = vd->cfg;
 564             source = va_arg(args, const video_format_t *);
 565         } else {
 566             cfg    = va_arg(args, const vout_display_cfg_t *);
 567             source = &vd->source;
 568             if (query == VOUT_DISPLAY_CHANGE_DISPLAY_SIZE)
 569                 is_forced = va_arg(args, int);
 570         }
 571         if (query == VOUT_DISPLAY_CHANGE_DISPLAY_SIZE && is_forced) {
 572             /* Update dimensions */
 573             if (sys->parent_window) {
 574                 vout_window_SetSize(sys->parent_window, cfg->display.width, cfg->display.height);
 575             } else {
 576                 RECT rect_window;
 577                 rect_window.top    = 0;
 578                 rect_window.left   = 0;
 579                 rect_window.right  = cfg->display.width;
 580                 rect_window.bottom = cfg->display.height;
 581                 AdjustWindowRect(&rect_window, EventThreadGetWindowStyle(sys->event), 0);
 582
 583                 SetWindowPos(sys->hwnd, 0, 0, 0,
 584                              rect_window.right - rect_window.left,
 585                              rect_window.bottom - rect_window.top, SWP_NOMOVE);
 586             }
 587         }
 588         UpdateRects(vd, cfg, source, is_forced);
 589         return VLC_SUCCESS;
 590     }
 591     case VOUT_DISPLAY_CHANGE_WINDOW_STATE: {       /* unsigned state */
 592         const unsigned state = va_arg(args, unsigned);
 593         const bool is_on_top = (state & VOUT_WINDOW_STATE_ABOVE) != 0;
 594 #ifdef MODULE_NAME_IS_direct3d
 595         if (sys->use_desktop && is_on_top)
 596             return VLC_EGENERIC;
 597 #endif
 598         if (sys->parent_window) {
 599             if (vout_window_SetState(sys->parent_window, state))
 600                 return VLC_EGENERIC;
 601         } else {
 602             HMENU hMenu = GetSystemMenu(sys->hwnd, FALSE);
 603
 604             if (is_on_top && !(GetWindowLong(sys->hwnd, GWL_EXSTYLE) & WS_EX_TOPMOST)) {
 605                 CheckMenuItem(hMenu, IDM_TOGGLE_ON_TOP, MF_BYCOMMAND | MFS_CHECKED);
 606                 SetWindowPos(sys->hwnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE);
 607             } else if (!is_on_top && (GetWindowLong(sys->hwnd, GWL_EXSTYLE) & WS_EX_TOPMOST)) {
 608                 CheckMenuItem(hMenu, IDM_TOGGLE_ON_TOP, MF_BYCOMMAND | MFS_UNCHECKED);
 609                 SetWindowPos(sys->hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOSIZE|SWP_NOMOVE);
 610             }
 611         }
 612         sys->is_on_top = is_on_top;
 613         return VLC_SUCCESS;
 614     }
 615     case VOUT_DISPLAY_CHANGE_FULLSCREEN: {   /* const vout_display_cfg_t *p_cfg */
 616         const vout_display_cfg_t *cfg = va_arg(args, const vout_display_cfg_t *);
 617         return CommonControlSetFullscreen(vd, cfg->is_fullscreen);
 618     }
 619
 620     case VOUT_DISPLAY_RESET_PICTURES:
 621     case VOUT_DISPLAY_HIDE_MOUSE:
 622         assert(0);
 623     default:
 624         return VLC_EGENERIC;
 625     }
 626 }
 627
 628 #ifndef UNDER_CE
 629 static void DisableScreensaver(vout_display_t *vd)
 630 {
 631     vout_display_sys_t *sys = vd->sys;
 632
 633     /* disable screensaver by temporarily changing system settings */
 634     sys->i_spi_lowpowertimeout = 0;
 635     sys->i_spi_powerofftimeout = 0;
 636     sys->i_spi_screensavetimeout = 0;
 637     if (var_GetBool(vd, "disable-screensaver")) {
 638         msg_Dbg(vd, "disabling screen saver");
 639         SystemParametersInfo(SPI_GETLOWPOWERTIMEOUT, 0,
 640                              &sys->i_spi_lowpowertimeout, 0);
 641         if (0 != sys->i_spi_lowpowertimeout) {
 642             SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT, 0, NULL, 0);
 643         }
 644         SystemParametersInfo(SPI_GETPOWEROFFTIMEOUT, 0,
 645                              &sys->i_spi_powerofftimeout, 0);
 646         if (0 != sys->i_spi_powerofftimeout) {
 647             SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT, 0, NULL, 0);
 648         }
 649         SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0,
 650                              &sys->i_spi_screensavetimeout, 0);
 651         if (0 != sys->i_spi_screensavetimeout) {
 652             SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, 0, NULL, 0);
 653         }
 654     }
 655 }
 656
 657 static void RestoreScreensaver(vout_display_t *vd)
 658 {
 659     vout_display_sys_t *sys = vd->sys;
 660
 661     /* restore screensaver system settings */
 662     if (0 != sys->i_spi_lowpowertimeout) {
 663         SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT,
 664                              sys->i_spi_lowpowertimeout, NULL, 0);
 665     }
 666     if (0 != sys->i_spi_powerofftimeout) {
 667         SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT,
 668                              sys->i_spi_powerofftimeout, NULL, 0);
 669     }
 670     if (0 != sys->i_spi_screensavetimeout) {
 671         SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT,
 672                              sys->i_spi_screensavetimeout, NULL, 0);
 673     }
 674 }
 675 #endif
 676