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 <GL/gl.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->b_using_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 && !vd->cfg->is_fullscreen) {
 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)
 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 #if defined(MODULE_NAME_IS_wingdi) || defined(MODULE_NAME_IS_wingapi)
 190             unsigned int i_x, i_y, i_width, i_height;
 191             vout_PlacePicture(vd, rect_parent.right - rect_parent.left,
 192                               rect_parent.bottom - rect_parent.top,
 193                               &i_x, &i_y, &i_width, &i_height);
 194
 195             SetWindowPos(sys->hvideownd, HWND_TOP,
 196                          i_x, i_y, i_width, i_height, 0);
 197 #endif
 198 #endif
 199         }
 200     }
 201
 202     /* */
 203     if (EventThreadGetAndResetHasMoved(sys->event))
 204         UpdateRects(vd, NULL, NULL, false);
 205
 206     /* Pointer change */
 207     EventThreadMouseAutoHide(sys->event);
 208 }
 209
 210 /*****************************************************************************
 211  * UpdateRects: update clipping rectangles
 212  *****************************************************************************
 213  * This function is called when the window position or size are changed, and
 214  * its job is to update the source and destination RECTs used to display the
 215  * picture.
 216  *****************************************************************************/
 217 void UpdateRects(vout_display_t *vd,
 218                   const vout_display_cfg_t *cfg,
 219                   const video_format_t *source,
 220                   bool is_forced)
 221 {
 222     vout_display_sys_t *sys = vd->sys;
 223 #define rect_src sys->rect_src
 224 #define rect_src_clipped sys->rect_src_clipped
 225 #define rect_dest sys->rect_dest
 226 #define rect_dest_clipped sys->rect_dest_clipped
 227
 228     RECT  rect;
 229     POINT point;
 230
 231     /* Retrieve the window size */
 232     GetClientRect(sys->hwnd, &rect);
 233
 234     /* Retrieve the window position */
 235     point.x = point.y = 0;
 236     ClientToScreen(sys->hwnd, &point);
 237
 238     /* If nothing changed, we can return */
 239     bool has_changed;
 240     EventThreadUpdateWindowPosition(sys->event, &has_changed,
 241                                     point.x, point.y,
 242                                     rect.right, rect.bottom);
 243     if (!is_forced && !has_changed)
 244         return;
 245
 246     /* */
 247     if (!cfg)
 248         cfg = vd->cfg;
 249     if (!source)
 250         source = &vd->source;
 251
 252     /* Update the window position and size */
 253     vout_display_cfg_t place_cfg = *cfg;
 254     place_cfg.display.width  = rect.right;
 255     place_cfg.display.height = rect.bottom;
 256
 257     vout_display_place_t place;
 258     vout_display_PlacePicture(&place, source, &place_cfg, true);
 259
 260     EventThreadUpdateSourceAndPlace(sys->event, source, &place);
 261
 262     if (sys->hvideownd)
 263         SetWindowPos(sys->hvideownd, 0,
 264                      place.x, place.y, place.width, place.height,
 265                      SWP_NOCOPYBITS|SWP_NOZORDER|SWP_ASYNCWINDOWPOS);
 266
 267     /* Destination image position and dimensions */
 268 #if defined(MODULE_NAME_IS_direct3d)
 269     rect_dest.left   = 0;
 270     rect_dest.right  = place.width;
 271     rect_dest.top    = 0;
 272     rect_dest.bottom = place.height;
 273 #else
 274     rect_dest.left = point.x + place.x;
 275     rect_dest.right = rect_dest.left + place.width;
 276     rect_dest.top = point.y + place.y;
 277     rect_dest.bottom = rect_dest.top + place.height;
 278
 279 #ifdef MODULE_NAME_IS_directx
 280     /* Apply overlay hardware constraints */
 281     if (sys->b_using_overlay) {
 282         if (sys->i_align_dest_boundary)
 283             rect_dest.left = (rect_dest.left +
 284                               sys->i_align_dest_boundary / 2) &
 285                                         ~sys->i_align_dest_boundary;
 286
 287         if (sys->i_align_dest_size)
 288             rect_dest.right = ((rect_dest.right -
 289                                 rect_dest.left +
 290                                 sys->i_align_dest_size / 2) &
 291                                     ~sys->i_align_dest_size) + rect_dest.left;
 292     }
 293 #endif
 294
 295 #endif
 296
 297 #if defined(MODULE_NAME_IS_directx) || defined(MODULE_NAME_IS_direct3d)
 298     /* UpdateOverlay directdraw function doesn't automatically clip to the
 299      * display size so we need to do it otherwise it will fail
 300      * It is also needed for d3d to avoid exceding our surface size */
 301
 302     /* Clip the destination window */
 303     if (!IntersectRect(&rect_dest_clipped, &rect_dest,
 304                        &sys->rect_display)) {
 305         SetRectEmpty(&rect_src_clipped);
 306         return;
 307     }
 308
 309 #ifndef NDEBUG
 310     msg_Dbg(vd, "DirectXUpdateRects image_dst_clipped coords:"
 311                 " %li,%li,%li,%li",
 312                 rect_dest_clipped.left, rect_dest_clipped.top,
 313                 rect_dest_clipped.right, rect_dest_clipped.bottom);
 314 #endif
 315
 316 #else
 317
 318     /* AFAIK, there are no clipping constraints in Direct3D, OpenGL and GDI */
 319     rect_dest_clipped = rect_dest;
 320
 321 #endif
 322
 323     /* the 2 following lines are to fix a bug when clicking on the desktop */
 324     if ((rect_dest_clipped.right - rect_dest_clipped.left) == 0 ||
 325         (rect_dest_clipped.bottom - rect_dest_clipped.top) == 0) {
 326         SetRectEmpty(&rect_src_clipped);
 327         return;
 328     }
 329
 330     /* src image dimensions */
 331     rect_src.left   = 0;
 332     rect_src.top    = 0;
 333     rect_src.right  = source->i_width;
 334     rect_src.bottom = source->i_height;
 335
 336     /* Clip the source image */
 337     rect_src_clipped.left = source->i_x_offset +
 338       (rect_dest_clipped.left - rect_dest.left) *
 339       source->i_visible_width / (rect_dest.right - rect_dest.left);
 340     rect_src_clipped.right = source->i_x_offset +
 341       source->i_visible_width -
 342       (rect_dest.right - rect_dest_clipped.right) *
 343       source->i_visible_width / (rect_dest.right - rect_dest.left);
 344     rect_src_clipped.top = source->i_y_offset +
 345       (rect_dest_clipped.top - rect_dest.top) *
 346       source->i_visible_height / (rect_dest.bottom - rect_dest.top);
 347     rect_src_clipped.bottom = source->i_y_offset +
 348       source->i_visible_height -
 349       (rect_dest.bottom - rect_dest_clipped.bottom) *
 350       source->i_visible_height / (rect_dest.bottom - rect_dest.top);
 351
 352 #ifdef MODULE_NAME_IS_directx
 353     /* Apply overlay hardware constraints */
 354     if (sys->b_using_overlay) {
 355         if (sys->i_align_src_boundary)
 356             rect_src_clipped.left =
 357                 (rect_src_clipped.left +
 358                  sys->i_align_src_boundary / 2) &
 359                             ~sys->i_align_src_boundary;
 360
 361         if (sys->i_align_src_size)
 362             rect_src_clipped.right =
 363                 ((rect_src_clipped.right - rect_src_clipped.left +
 364                   sys->i_align_src_size / 2) &
 365                             ~sys->i_align_src_size) + rect_src_clipped.left;
 366     }
 367 #elif defined(MODULE_NAME_IS_direct3d)
 368     /* Needed at least with YUV content */
 369     rect_src_clipped.left &= ~1;
 370     rect_src_clipped.right &= ~1;
 371     rect_src_clipped.top &= ~1;
 372     rect_src_clipped.bottom &= ~1;
 373 #endif
 374
 375 #ifndef NDEBUG
 376     msg_Dbg(vd, "DirectXUpdateRects image_src_clipped"
 377                 " coords: %li,%li,%li,%li",
 378                 rect_src_clipped.left, rect_src_clipped.top,
 379                 rect_src_clipped.right, rect_src_clipped.bottom);
 380 #endif
 381
 382 #ifdef MODULE_NAME_IS_directx
 383     /* The destination coordinates need to be relative to the current
 384      * directdraw primary surface (display) */
 385     rect_dest_clipped.left -= sys->rect_display.left;
 386     rect_dest_clipped.right -= sys->rect_display.left;
 387     rect_dest_clipped.top -= sys->rect_display.top;
 388     rect_dest_clipped.bottom -= sys->rect_display.top;
 389
 390     if (sys->b_using_overlay)
 391         DirectDrawUpdateOverlay(vd);
 392 #endif
 393
 394 #ifndef UNDER_CE
 395     /* Windows 7 taskbar thumbnail code */
 396     LPTASKBARLIST3 taskbl;
 397     OSVERSIONINFO winVer;
 398     winVer.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 399     if (GetVersionEx(&winVer) && winVer.dwMajorVersion > 5) {
 400         CoInitialize(0);
 401
 402         if (S_OK == CoCreateInstance(&clsid_ITaskbarList,
 403                                      NULL, CLSCTX_INPROC_SERVER,
 404                                      &IID_ITaskbarList3,
 405                                      &taskbl)) {
 406             RECT rect_video, rect_parent, rect_relative;
 407             HWND hroot = GetAncestor(sys->hwnd,GA_ROOT);
 408
 409             taskbl->vt->HrInit(taskbl);
 410             GetWindowRect(sys->hvideownd, &rect_video);
 411             GetWindowRect(hroot, &rect_parent);
 412             rect_relative.left = rect_video.left - rect_parent.left - 8;
 413             rect_relative.right = rect_video.right - rect_video.left + rect_relative.left;
 414             rect_relative.top = rect_video.top - rect_parent.top - 10;
 415             rect_relative.bottom = rect_video.bottom - rect_video.top + rect_relative.top - 25;
 416
 417             if (S_OK != taskbl->vt->SetThumbnailClip(taskbl, hroot, &rect_relative))
 418                 msg_Err(vd, "SetThumbNailClip failed");
 419
 420             taskbl->vt->Release(taskbl);
 421         }
 422         CoUninitialize();
 423     }
 424 #endif
 425     /* Signal the change in size/position */
 426     sys->changes |= DX_POSITION_CHANGE;
 427
 428 #undef rect_src
 429 #undef rect_src_clipped
 430 #undef rect_dest
 431 #undef rect_dest_clipped
 432 }
 433
 434 static int CommonControlSetFullscreen(vout_display_t *vd, bool is_fullscreen)
 435 {
 436     vout_display_sys_t *sys = vd->sys;
 437
 438 #ifdef MODULE_NAME_IS_direct3d
 439     if (sys->use_desktop && is_fullscreen)
 440         return VLC_EGENERIC;
 441 #endif
 442
 443     /* */
 444     if (sys->parent_window)
 445         return vout_window_SetFullScreen(sys->parent_window, is_fullscreen);
 446
 447     /* */
 448     HWND hwnd = sys->hparent && sys->hfswnd ? sys->hfswnd : sys->hwnd;
 449
 450     /* Save the current windows placement/placement to restore
 451        when fullscreen is over */
 452     WINDOWPLACEMENT window_placement;
 453     window_placement.length = sizeof(WINDOWPLACEMENT);
 454     GetWindowPlacement(hwnd, &window_placement);
 455
 456     if (is_fullscreen) {
 457         msg_Dbg(vd, "entering fullscreen mode");
 458
 459         /* Change window style, no borders and no title bar */
 460         SetWindowLong(hwnd, GWL_STYLE, WS_CLIPCHILDREN | WS_VISIBLE);
 461
 462         if (sys->hparent) {
 463 #ifdef UNDER_CE
 464             POINT point = {0,0};
 465             RECT rect;
 466             ClientToScreen(sys->hwnd, &point);
 467             GetClientRect(sys->hwnd, &rect);
 468             SetWindowPos(hwnd, 0, point.x, point.y,
 469                          rect.right, rect.bottom,
 470                          SWP_NOZORDER|SWP_FRAMECHANGED);
 471 #else
 472             /* Retrieve current window position so fullscreen will happen
 473             *on the right screen */
 474             HMONITOR hmon = MonitorFromWindow(sys->hparent,
 475                                               MONITOR_DEFAULTTONEAREST);
 476             MONITORINFO mi;
 477             mi.cbSize = sizeof(MONITORINFO);
 478             if (GetMonitorInfo(hmon, &mi))
 479                 SetWindowPos(hwnd, 0,
 480                              mi.rcMonitor.left,
 481                              mi.rcMonitor.top,
 482                              mi.rcMonitor.right - mi.rcMonitor.left,
 483                              mi.rcMonitor.bottom - mi.rcMonitor.top,
 484                              SWP_NOZORDER|SWP_FRAMECHANGED);
 485 #endif
 486         } else {
 487             /* Maximize non embedded window */
 488             ShowWindow(hwnd, SW_SHOWMAXIMIZED);
 489         }
 490
 491         if (sys->hparent) {
 492             /* Hide the previous window */
 493             RECT rect;
 494             GetClientRect(hwnd, &rect);
 495             SetParent(sys->hwnd, hwnd);
 496             SetWindowPos(sys->hwnd, 0, 0, 0,
 497                          rect.right, rect.bottom,
 498                          SWP_NOZORDER|SWP_FRAMECHANGED);
 499
 500 #ifdef UNDER_CE
 501             HWND topLevelParent = GetParent(sys->hparent);
 502 #else
 503             HWND topLevelParent = GetAncestor(sys->hparent, GA_ROOT);
 504 #endif
 505             ShowWindow(topLevelParent, SW_HIDE);
 506         }
 507         SetForegroundWindow(hwnd);
 508     } else {
 509         msg_Dbg(vd, "leaving fullscreen mode");
 510
 511         /* Change window style, no borders and no title bar */
 512         SetWindowLong(hwnd, GWL_STYLE, EventThreadGetWindowStyle(sys->event));
 513
 514         if (sys->hparent) {
 515             RECT rect;
 516             GetClientRect(sys->hparent, &rect);
 517             SetParent(sys->hwnd, sys->hparent);
 518             SetWindowPos(sys->hwnd, 0, 0, 0,
 519                          rect.right, rect.bottom,
 520                          SWP_NOZORDER|SWP_FRAMECHANGED);
 521
 522 #ifdef UNDER_CE
 523             HWND topLevelParent = GetParent(sys->hparent);
 524 #else
 525             HWND topLevelParent = GetAncestor(sys->hparent, GA_ROOT);
 526 #endif
 527             ShowWindow(topLevelParent, SW_SHOW);
 528             SetForegroundWindow(sys->hparent);
 529             ShowWindow(hwnd, SW_HIDE);
 530         } else {
 531             /* return to normal window for non embedded vout */
 532             SetWindowPlacement(hwnd, &window_placement);
 533             ShowWindow(hwnd, SW_SHOWNORMAL);
 534         }
 535
 536         /* Make sure the mouse cursor is displayed */
 537         EventThreadMouseShow(sys->event);
 538     }
 539     return VLC_SUCCESS;
 540 }
 541
 542 int CommonControl(vout_display_t *vd, int query, va_list args)
 543 {
 544     vout_display_sys_t *sys = vd->sys;
 545
 546     switch (query) {
 547     case VOUT_DISPLAY_CHANGE_DISPLAY_SIZE:   /* const vout_display_cfg_t *p_cfg, int is_forced */
 548     case VOUT_DISPLAY_CHANGE_DISPLAY_FILLED: /* const vout_display_cfg_t *p_cfg */
 549     case VOUT_DISPLAY_CHANGE_ZOOM:           /* const vout_display_cfg_t *p_cfg */
 550     case VOUT_DISPLAY_CHANGE_SOURCE_ASPECT:  /* const video_format_t *p_source */
 551     case VOUT_DISPLAY_CHANGE_SOURCE_CROP: {  /* const video_format_t *p_source */
 552         const vout_display_cfg_t *cfg;
 553         const video_format_t *source;
 554         bool  is_forced = true;
 555         if (query == VOUT_DISPLAY_CHANGE_SOURCE_CROP ||
 556             query == VOUT_DISPLAY_CHANGE_SOURCE_ASPECT) {
 557             cfg    = vd->cfg;
 558             source = va_arg(args, const video_format_t *);
 559         } else {
 560             cfg    = va_arg(args, const vout_display_cfg_t *);
 561             source = &vd->source;
 562             if (query == VOUT_DISPLAY_CHANGE_DISPLAY_SIZE)
 563                 is_forced = va_arg(args, int);
 564         }
 565         if (query == VOUT_DISPLAY_CHANGE_DISPLAY_SIZE && is_forced) {
 566             /* Update dimensions */
 567             if (sys->parent_window) {
 568                 vout_window_SetSize(sys->parent_window, cfg->display.width, cfg->display.height);
 569             } else {
 570                 RECT rect_window;
 571                 rect_window.top    = 0;
 572                 rect_window.left   = 0;
 573                 rect_window.right  = cfg->display.width;
 574                 rect_window.bottom = cfg->display.height;
 575                 AdjustWindowRect(&rect_window, EventThreadGetWindowStyle(sys->event), 0);
 576
 577                 SetWindowPos(sys->hwnd, 0, 0, 0,
 578                              rect_window.right - rect_window.left,
 579                              rect_window.bottom - rect_window.top, SWP_NOMOVE);
 580             }
 581         }
 582         UpdateRects(vd, cfg, source, is_forced);
 583         return VLC_SUCCESS;
 584     }
 585     case VOUT_DISPLAY_CHANGE_ON_TOP: {       /* int b_on_top */
 586         const bool is_on_top = va_arg(args, int);
 587 #ifdef MODULE_NAME_IS_direct3d
 588         if (sys->use_desktop && is_on_top)
 589             return VLC_EGENERIC;
 590 #endif
 591         if (sys->parent_window) {
 592             if (vout_window_SetOnTop(sys->parent_window, is_on_top))
 593                 return VLC_EGENERIC;
 594         } else {
 595             HMENU hMenu = GetSystemMenu(sys->hwnd, FALSE);
 596
 597             if (is_on_top && !(GetWindowLong(sys->hwnd, GWL_EXSTYLE) & WS_EX_TOPMOST)) {
 598                 CheckMenuItem(hMenu, IDM_TOGGLE_ON_TOP, MF_BYCOMMAND | MFS_CHECKED);
 599                 SetWindowPos(sys->hwnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE);
 600             } else if (!is_on_top && (GetWindowLong(sys->hwnd, GWL_EXSTYLE) & WS_EX_TOPMOST)) {
 601                 CheckMenuItem(hMenu, IDM_TOGGLE_ON_TOP, MF_BYCOMMAND | MFS_UNCHECKED);
 602                 SetWindowPos(sys->hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOSIZE|SWP_NOMOVE);
 603             }
 604         }
 605         sys->is_on_top = is_on_top;
 606         return VLC_SUCCESS;
 607     }
 608     case VOUT_DISPLAY_CHANGE_FULLSCREEN: {   /* const vout_display_cfg_t *p_cfg */
 609         const vout_display_cfg_t *cfg = va_arg(args, const vout_display_cfg_t *);
 610         return CommonControlSetFullscreen(vd, cfg->is_fullscreen);
 611     }
 612
 613     case VOUT_DISPLAY_RESET_PICTURES:
 614     case VOUT_DISPLAY_HIDE_MOUSE:
 615         assert(0);
 616     default:
 617         return VLC_EGENERIC;
 618     }
 619 }
 620
 621 #ifndef UNDER_CE
 622 static void DisableScreensaver(vout_display_t *vd)
 623 {
 624     vout_display_sys_t *sys = vd->sys;
 625
 626     /* disable screensaver by temporarily changing system settings */
 627     sys->i_spi_lowpowertimeout = 0;
 628     sys->i_spi_powerofftimeout = 0;
 629     sys->i_spi_screensavetimeout = 0;
 630     if (var_GetBool(vd, "disable-screensaver")) {
 631         msg_Dbg(vd, "disabling screen saver");
 632         SystemParametersInfo(SPI_GETLOWPOWERTIMEOUT, 0,
 633                              &sys->i_spi_lowpowertimeout, 0);
 634         if (0 != sys->i_spi_lowpowertimeout) {
 635             SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT, 0, NULL, 0);
 636         }
 637         SystemParametersInfo(SPI_GETPOWEROFFTIMEOUT, 0,
 638                              &sys->i_spi_powerofftimeout, 0);
 639         if (0 != sys->i_spi_powerofftimeout) {
 640             SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT, 0, NULL, 0);
 641         }
 642         SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0,
 643                              &sys->i_spi_screensavetimeout, 0);
 644         if (0 != sys->i_spi_screensavetimeout) {
 645             SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, 0, NULL, 0);
 646         }
 647     }
 648 }
 649
 650 static void RestoreScreensaver(vout_display_t *vd)
 651 {
 652     vout_display_sys_t *sys = vd->sys;
 653
 654     /* restore screensaver system settings */
 655     if (0 != sys->i_spi_lowpowertimeout) {
 656         SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT,
 657                              sys->i_spi_lowpowertimeout, NULL, 0);
 658     }
 659     if (0 != sys->i_spi_powerofftimeout) {
 660         SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT,
 661                              sys->i_spi_powerofftimeout, NULL, 0);
 662     }
 663     if (0 != sys->i_spi_screensavetimeout) {
 664         SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT,
 665                              sys->i_spi_screensavetimeout, NULL, 0);
 666     }
 667 }
 668 #endif
 669