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 void CommonChangeThumbnailClip(vout_display_t *, bool show);
  64 static int CommonControlSetFullscreen(vout_display_t *, bool is_fullscreen);
  65
  66 static void DisableScreensaver(vout_display_t *);
  67 static void RestoreScreensaver(vout_display_t *);
  68
  69 /* */
  70 int CommonInit(vout_display_t *vd)
  71 {
  72     vout_display_sys_t *sys = vd->sys;
  73
  74     sys->hwnd      = NULL;
  75     sys->hvideownd = NULL;
  76     sys->hparent   = NULL;
  77     sys->hfswnd    = NULL;
  78     sys->changes   = 0;
  79     SetRectEmpty(&sys->rect_display);
  80     SetRectEmpty(&sys->rect_parent);
  81     sys->is_first_display = true;
  82     sys->is_on_top = false;
  83
  84     var_Create(vd, "video-title", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
  85     var_Create(vd, "video-deco", VLC_VAR_BOOL | VLC_VAR_DOINHERIT);
  86
  87     /* FIXME remove mouse hide from msw */
  88     var_Create(vd, "mouse-hide-timeout", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);
  89
  90     /* */
  91     sys->event = EventThreadCreate(vd);
  92     if (!sys->event)
  93         return VLC_EGENERIC;
  94
  95     event_cfg_t cfg;
  96     memset(&cfg, 0, sizeof(cfg));
  97 #ifdef MODULE_NAME_IS_direct3d
  98     cfg.use_desktop = sys->use_desktop;
  99 #endif
 100 #ifdef MODULE_NAME_IS_directx
 101     cfg.use_overlay = sys->use_overlay;
 102 #endif
 103     cfg.win.type   = VOUT_WINDOW_TYPE_HWND;
 104     cfg.win.x      = var_InheritInteger(vd, "video-x");
 105     cfg.win.y      = var_InheritInteger(vd, "video-y");
 106     cfg.win.width  = vd->cfg->display.width;
 107     cfg.win.height = vd->cfg->display.height;
 108
 109     event_hwnd_t hwnd;
 110     if (EventThreadStart(sys->event, &hwnd, &cfg))
 111         return VLC_EGENERIC;
 112
 113     sys->parent_window = hwnd.parent_window;
 114     sys->hparent       = hwnd.hparent;
 115     sys->hwnd          = hwnd.hwnd;
 116     sys->hvideownd     = hwnd.hvideownd;
 117     sys->hfswnd        = hwnd.hfswnd;
 118
 119     if (vd->cfg->is_fullscreen) {
 120         if (CommonControlSetFullscreen(vd, true))
 121             vout_display_SendEventFullscreen(vd, false);
 122     }
 123
 124     /* Why not with glwin32 */
 125 #if !defined(UNDER_CE) && !defined(MODULE_NAME_IS_glwin32)
 126     var_Create(vd, "disable-screensaver", VLC_VAR_BOOL | VLC_VAR_DOINHERIT);
 127     DisableScreensaver (vd);
 128 #endif
 129
 130     return VLC_SUCCESS;
 131 }
 132
 133 /* */
 134 void CommonClean(vout_display_t *vd)
 135 {
 136     vout_display_sys_t *sys = vd->sys;
 137
 138     if (sys->event) {
 139         CommonChangeThumbnailClip(vd, false);
 140         EventThreadStop(sys->event);
 141         EventThreadDestroy(sys->event);
 142     }
 143
 144 #if !defined(UNDER_CE) && !defined(MODULE_NAME_IS_glwin32)
 145     RestoreScreensaver(vd);
 146 #endif
 147 }
 148
 149 void CommonManage(vout_display_t *vd)
 150 {
 151     vout_display_sys_t *sys = vd->sys;
 152
 153     /* We used to call the Win32 PeekMessage function here to read the window
 154      * messages. But since window can stay blocked into this function for a
 155      * long time (for example when you move your window on the screen), I
 156      * decided to isolate PeekMessage in another thread. */
 157
 158     /* If we do not control our window, we check for geometry changes
 159      * ourselves because the parent might not send us its events. */
 160     if (sys->hparent) {
 161         RECT rect_parent;
 162         POINT point;
 163
 164         /* Check if the parent window has resized or moved */
 165         GetClientRect(sys->hparent, &rect_parent);
 166         point.x = point.y = 0;
 167         ClientToScreen(sys->hparent, &point);
 168         OffsetRect(&rect_parent, point.x, point.y);
 169
 170         if (!EqualRect(&rect_parent, &sys->rect_parent)) {
 171             sys->rect_parent = rect_parent;
 172
 173             /* This code deals with both resize and move
 174              *
 175              * For most drivers(direct3d, gdi, opengl), move is never
 176              * an issue. The surface automatically gets moved together
 177              * with the associated window (hvideownd)
 178              *
 179              * For directx, it is still important to call UpdateRects
 180              * on a move of the parent window, even if no resize occured
 181              */
 182             SetWindowPos(sys->hwnd, 0, 0, 0,
 183                          rect_parent.right - rect_parent.left,
 184                          rect_parent.bottom - rect_parent.top,
 185                          SWP_NOZORDER);
 186
 187             UpdateRects(vd, NULL, NULL, true);
 188         }
 189     }
 190
 191     /* HasMoved means here resize or move */
 192     if (EventThreadGetAndResetHasMoved(sys->event))
 193         UpdateRects(vd, NULL, NULL, false);
 194
 195     /* Pointer change */
 196     EventThreadMouseAutoHide(sys->event);
 197 }
 198
 199 /**
 200  * It ensures that the video window is shown after the first picture
 201  * is displayed.
 202  */
 203 void CommonDisplay(vout_display_t *vd)
 204 {
 205     vout_display_sys_t *sys = vd->sys;
 206
 207     if (!sys->is_first_display)
 208         return;
 209
 210     /* Video window is initially hidden, show it now since we got a
 211      * picture to show.
 212      */
 213     SetWindowPos(sys->hvideownd, 0, 0, 0, 0, 0,
 214                  SWP_ASYNCWINDOWPOS|
 215                  SWP_FRAMECHANGED|
 216                  SWP_SHOWWINDOW|
 217                  SWP_NOMOVE|
 218                  SWP_NOSIZE|
 219                  SWP_NOZORDER);
 220     sys->is_first_display = false;
 221 }
 222
 223 void AlignRect(RECT *r, int align_boundary, int align_size)
 224 {
 225     if (align_boundary)
 226         r->left = (r->left + align_boundary/2) & ~align_boundary;
 227     if (align_size)
 228         r->right = ((r->right - r->left + align_size/2) & ~align_size) + r->left;
 229 }
 230
 231 /* */
 232 static void CommonChangeThumbnailClip(vout_display_t *vd, bool show)
 233 {
 234 #ifndef UNDER_CE
 235     vout_display_sys_t *sys = vd->sys;
 236
 237     /* Windows 7 taskbar thumbnail code */
 238     OSVERSIONINFO winVer;
 239     winVer.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 240     if (!GetVersionEx(&winVer) || winVer.dwMajorVersion <= 5)
 241         return;
 242
 243     CoInitialize(0);
 244
 245     LPTASKBARLIST3 taskbl;
 246     if (S_OK == CoCreateInstance(&clsid_ITaskbarList,
 247                                  NULL, CLSCTX_INPROC_SERVER,
 248                                  &IID_ITaskbarList3,
 249                                  &taskbl)) {
 250         taskbl->vt->HrInit(taskbl);
 251
 252         HWND hroot = GetAncestor(sys->hwnd,GA_ROOT);
 253         RECT relative;
 254         if (show) {
 255             RECT video, parent;
 256             GetWindowRect(sys->hvideownd, &video);
 257             GetWindowRect(hroot, &parent);
 258             relative.left   = video.left   - parent.left - 8;
 259             relative.top    = video.top    - parent.top - 10;
 260
 261             relative.right  = video.right  - video.left + relative.left;
 262             relative.bottom = video.bottom - video.top  + relative.top - 25;
 263         }
 264         if (S_OK != taskbl->vt->SetThumbnailClip(taskbl, hroot,
 265                                                  show ? &relative : NULL))
 266             msg_Err(vd, "SetThumbNailClip failed");
 267
 268         taskbl->vt->Release(taskbl);
 269     }
 270     CoUninitialize();
 271 #endif
 272 }
 273
 274 /*****************************************************************************
 275  * UpdateRects: update clipping rectangles
 276  *****************************************************************************
 277  * This function is called when the window position or size are changed, and
 278  * its job is to update the source and destination RECTs used to display the
 279  * picture.
 280  *****************************************************************************/
 281 void UpdateRects(vout_display_t *vd,
 282                   const vout_display_cfg_t *cfg,
 283                   const video_format_t *source,
 284                   bool is_forced)
 285 {
 286     vout_display_sys_t *sys = vd->sys;
 287 #define rect_src sys->rect_src
 288 #define rect_src_clipped sys->rect_src_clipped
 289 #define rect_dest sys->rect_dest
 290 #define rect_dest_clipped sys->rect_dest_clipped
 291
 292     RECT  rect;
 293     POINT point;
 294
 295     /* */
 296     if (!cfg)
 297         cfg = vd->cfg;
 298     if (!source)
 299         source = &vd->source;
 300
 301     /* Retrieve the window size */
 302     GetClientRect(sys->hwnd, &rect);
 303
 304     /* Retrieve the window position */
 305     point.x = point.y = 0;
 306     ClientToScreen(sys->hwnd, &point);
 307
 308     /* If nothing changed, we can return */
 309     bool has_moved;
 310     bool is_resized;
 311     EventThreadUpdateWindowPosition(sys->event, &has_moved, &is_resized,
 312                                     point.x, point.y,
 313                                     rect.right, rect.bottom);
 314     if (is_resized)
 315         vout_display_SendEventDisplaySize(vd, rect.right, rect.bottom, cfg->is_fullscreen);
 316     if (!is_forced && !has_moved && !is_resized )
 317         return;
 318
 319     /* Update the window position and size */
 320     vout_display_cfg_t place_cfg = *cfg;
 321     place_cfg.display.width  = rect.right;
 322     place_cfg.display.height = rect.bottom;
 323
 324     vout_display_place_t place;
 325     vout_display_PlacePicture(&place, source, &place_cfg, false);
 326
 327     EventThreadUpdateSourceAndPlace(sys->event, source, &place);
 328 #if defined(MODULE_NAME_IS_wingapi)
 329     if (place.width != vd->fmt.i_width || place.height != vd->fmt.i_height)
 330         vout_display_SendEventPicturesInvalid(vd);
 331 #endif
 332
 333     if (sys->hvideownd)
 334         SetWindowPos(sys->hvideownd, 0,
 335                      place.x, place.y, place.width, place.height,
 336                      SWP_NOCOPYBITS|SWP_NOZORDER|SWP_ASYNCWINDOWPOS);
 337
 338     /* Destination image position and dimensions */
 339 #if defined(MODULE_NAME_IS_direct3d)
 340     rect_dest.left   = 0;
 341     rect_dest.right  = place.width;
 342     rect_dest.top    = 0;
 343     rect_dest.bottom = place.height;
 344 #else
 345     rect_dest.left = point.x + place.x;
 346     rect_dest.right = rect_dest.left + place.width;
 347     rect_dest.top = point.y + place.y;
 348     rect_dest.bottom = rect_dest.top + place.height;
 349
 350 #ifdef MODULE_NAME_IS_directx
 351     /* Apply overlay hardware constraints */
 352     if (sys->use_overlay)
 353         AlignRect(&rect_dest, sys->i_align_dest_boundary, sys->i_align_dest_size);
 354 #endif
 355
 356 #endif
 357
 358 #if defined(MODULE_NAME_IS_directx) || defined(MODULE_NAME_IS_direct3d)
 359     /* UpdateOverlay directdraw function doesn't automatically clip to the
 360      * display size so we need to do it otherwise it will fail
 361      * It is also needed for d3d to avoid exceding our surface size */
 362
 363     /* Clip the destination window */
 364     if (!IntersectRect(&rect_dest_clipped, &rect_dest,
 365                        &sys->rect_display)) {
 366         SetRectEmpty(&rect_src_clipped);
 367         goto exit;
 368     }
 369
 370 #ifndef NDEBUG
 371     msg_Dbg(vd, "DirectXUpdateRects image_dst_clipped coords:"
 372                 " %li,%li,%li,%li",
 373                 rect_dest_clipped.left, rect_dest_clipped.top,
 374                 rect_dest_clipped.right, rect_dest_clipped.bottom);
 375 #endif
 376
 377 #else
 378
 379     /* AFAIK, there are no clipping constraints in Direct3D, OpenGL and GDI */
 380     rect_dest_clipped = rect_dest;
 381
 382 #endif
 383
 384     /* the 2 following lines are to fix a bug when clicking on the desktop */
 385     if ((rect_dest_clipped.right - rect_dest_clipped.left) == 0 ||
 386         (rect_dest_clipped.bottom - rect_dest_clipped.top) == 0) {
 387         SetRectEmpty(&rect_src_clipped);
 388         goto exit;
 389     }
 390
 391     /* src image dimensions */
 392     rect_src.left   = 0;
 393     rect_src.top    = 0;
 394     rect_src.right  = source->i_width;
 395     rect_src.bottom = source->i_height;
 396
 397     /* Clip the source image */
 398     rect_src_clipped.left = source->i_x_offset +
 399       (rect_dest_clipped.left - rect_dest.left) *
 400       source->i_visible_width / (rect_dest.right - rect_dest.left);
 401     rect_src_clipped.right = source->i_x_offset +
 402       source->i_visible_width -
 403       (rect_dest.right - rect_dest_clipped.right) *
 404       source->i_visible_width / (rect_dest.right - rect_dest.left);
 405     rect_src_clipped.top = source->i_y_offset +
 406       (rect_dest_clipped.top - rect_dest.top) *
 407       source->i_visible_height / (rect_dest.bottom - rect_dest.top);
 408     rect_src_clipped.bottom = source->i_y_offset +
 409       source->i_visible_height -
 410       (rect_dest.bottom - rect_dest_clipped.bottom) *
 411       source->i_visible_height / (rect_dest.bottom - rect_dest.top);
 412
 413 #ifdef MODULE_NAME_IS_directx
 414     /* Apply overlay hardware constraints */
 415     if (sys->use_overlay)
 416         AlignRect(&rect_src_clipped, sys->i_align_src_boundary, sys->i_align_src_size);
 417 #elif defined(MODULE_NAME_IS_direct3d)
 418     /* Needed at least with YUV content */
 419     rect_src_clipped.left &= ~1;
 420     rect_src_clipped.right &= ~1;
 421     rect_src_clipped.top &= ~1;
 422     rect_src_clipped.bottom &= ~1;
 423 #endif
 424
 425 #ifndef NDEBUG
 426     msg_Dbg(vd, "DirectXUpdateRects image_src_clipped"
 427                 " coords: %li,%li,%li,%li",
 428                 rect_src_clipped.left, rect_src_clipped.top,
 429                 rect_src_clipped.right, rect_src_clipped.bottom);
 430 #endif
 431
 432 #ifdef MODULE_NAME_IS_directx
 433     /* The destination coordinates need to be relative to the current
 434      * directdraw primary surface (display) */
 435     rect_dest_clipped.left -= sys->rect_display.left;
 436     rect_dest_clipped.right -= sys->rect_display.left;
 437     rect_dest_clipped.top -= sys->rect_display.top;
 438     rect_dest_clipped.bottom -= sys->rect_display.top;
 439 #endif
 440
 441     CommonChangeThumbnailClip(vd, true);
 442
 443 exit:
 444     /* Signal the change in size/position */
 445     sys->changes |= DX_POSITION_CHANGE;
 446
 447 #undef rect_src
 448 #undef rect_src_clipped
 449 #undef rect_dest
 450 #undef rect_dest_clipped
 451 }
 452
 453 static int CommonControlSetFullscreen(vout_display_t *vd, bool is_fullscreen)
 454 {
 455     vout_display_sys_t *sys = vd->sys;
 456
 457 #ifdef MODULE_NAME_IS_direct3d
 458     if (sys->use_desktop && is_fullscreen)
 459         return VLC_EGENERIC;
 460 #endif
 461
 462     /* */
 463     if (sys->parent_window)
 464         return vout_window_SetFullScreen(sys->parent_window, is_fullscreen);
 465
 466     /* */
 467     HWND hwnd = sys->hparent && sys->hfswnd ? sys->hfswnd : sys->hwnd;
 468
 469     /* Save the current windows placement/placement to restore
 470        when fullscreen is over */
 471     WINDOWPLACEMENT window_placement;
 472     window_placement.length = sizeof(WINDOWPLACEMENT);
 473     GetWindowPlacement(hwnd, &window_placement);
 474
 475     if (is_fullscreen) {
 476         msg_Dbg(vd, "entering fullscreen mode");
 477
 478         /* Change window style, no borders and no title bar */
 479         SetWindowLong(hwnd, GWL_STYLE, WS_CLIPCHILDREN | WS_VISIBLE);
 480
 481         if (sys->hparent) {
 482 #ifdef UNDER_CE
 483             POINT point = {0,0};
 484             RECT rect;
 485             ClientToScreen(sys->hwnd, &point);
 486             GetClientRect(sys->hwnd, &rect);
 487             SetWindowPos(hwnd, 0, point.x, point.y,
 488                          rect.right, rect.bottom,
 489                          SWP_NOZORDER|SWP_FRAMECHANGED);
 490 #else
 491             /* Retrieve current window position so fullscreen will happen
 492             *on the right screen */
 493             HMONITOR hmon = MonitorFromWindow(sys->hparent,
 494                                               MONITOR_DEFAULTTONEAREST);
 495             MONITORINFO mi;
 496             mi.cbSize = sizeof(MONITORINFO);
 497             if (GetMonitorInfo(hmon, &mi))
 498                 SetWindowPos(hwnd, 0,
 499                              mi.rcMonitor.left,
 500                              mi.rcMonitor.top,
 501                              mi.rcMonitor.right - mi.rcMonitor.left,
 502                              mi.rcMonitor.bottom - mi.rcMonitor.top,
 503                              SWP_NOZORDER|SWP_FRAMECHANGED);
 504 #endif
 505         } else {
 506             /* Maximize non embedded window */
 507             ShowWindow(hwnd, SW_SHOWMAXIMIZED);
 508         }
 509
 510         if (sys->hparent) {
 511             /* Hide the previous window */
 512             RECT rect;
 513             GetClientRect(hwnd, &rect);
 514             SetParent(sys->hwnd, hwnd);
 515             SetWindowPos(sys->hwnd, 0, 0, 0,
 516                          rect.right, rect.bottom,
 517                          SWP_NOZORDER|SWP_FRAMECHANGED);
 518
 519 #ifdef UNDER_CE
 520             HWND topLevelParent = GetParent(sys->hparent);
 521 #else
 522             HWND topLevelParent = GetAncestor(sys->hparent, GA_ROOT);
 523 #endif
 524             ShowWindow(topLevelParent, SW_HIDE);
 525         }
 526         SetForegroundWindow(hwnd);
 527     } else {
 528         msg_Dbg(vd, "leaving fullscreen mode");
 529
 530         /* Change window style, no borders and no title bar */
 531         SetWindowLong(hwnd, GWL_STYLE, EventThreadGetWindowStyle(sys->event));
 532
 533         if (sys->hparent) {
 534             RECT rect;
 535             GetClientRect(sys->hparent, &rect);
 536             SetParent(sys->hwnd, sys->hparent);
 537             SetWindowPos(sys->hwnd, 0, 0, 0,
 538                          rect.right, rect.bottom,
 539                          SWP_NOZORDER|SWP_FRAMECHANGED);
 540
 541 #ifdef UNDER_CE
 542             HWND topLevelParent = GetParent(sys->hparent);
 543 #else
 544             HWND topLevelParent = GetAncestor(sys->hparent, GA_ROOT);
 545 #endif
 546             ShowWindow(topLevelParent, SW_SHOW);
 547             SetForegroundWindow(sys->hparent);
 548             ShowWindow(hwnd, SW_HIDE);
 549         } else {
 550             /* return to normal window for non embedded vout */
 551             SetWindowPlacement(hwnd, &window_placement);
 552             ShowWindow(hwnd, SW_SHOWNORMAL);
 553         }
 554
 555         /* Make sure the mouse cursor is displayed */
 556         EventThreadMouseShow(sys->event);
 557     }
 558     return VLC_SUCCESS;
 559 }
 560
 561 int CommonControl(vout_display_t *vd, int query, va_list args)
 562 {
 563     vout_display_sys_t *sys = vd->sys;
 564
 565     switch (query) {
 566     case VOUT_DISPLAY_CHANGE_DISPLAY_SIZE:   /* const vout_display_cfg_t *p_cfg, int is_forced */
 567     case VOUT_DISPLAY_CHANGE_DISPLAY_FILLED: /* const vout_display_cfg_t *p_cfg */
 568     case VOUT_DISPLAY_CHANGE_ZOOM:           /* const vout_display_cfg_t *p_cfg */
 569     case VOUT_DISPLAY_CHANGE_SOURCE_ASPECT:  /* const video_format_t *p_source */
 570     case VOUT_DISPLAY_CHANGE_SOURCE_CROP: {  /* const video_format_t *p_source */
 571         const vout_display_cfg_t *cfg;
 572         const video_format_t *source;
 573         bool  is_forced = true;
 574         if (query == VOUT_DISPLAY_CHANGE_SOURCE_CROP ||
 575             query == VOUT_DISPLAY_CHANGE_SOURCE_ASPECT) {
 576             cfg    = vd->cfg;
 577             source = va_arg(args, const video_format_t *);
 578         } else {
 579             cfg    = va_arg(args, const vout_display_cfg_t *);
 580             source = &vd->source;
 581             if (query == VOUT_DISPLAY_CHANGE_DISPLAY_SIZE)
 582                 is_forced = va_arg(args, int);
 583         }
 584         if (query == VOUT_DISPLAY_CHANGE_DISPLAY_SIZE && is_forced) {
 585             /* Update dimensions */
 586             if (sys->parent_window) {
 587                 vout_window_SetSize(sys->parent_window, cfg->display.width, cfg->display.height);
 588             } else {
 589                 RECT rect_window;
 590                 rect_window.top    = 0;
 591                 rect_window.left   = 0;
 592                 rect_window.right  = cfg->display.width;
 593                 rect_window.bottom = cfg->display.height;
 594                 AdjustWindowRect(&rect_window, EventThreadGetWindowStyle(sys->event), 0);
 595
 596                 SetWindowPos(sys->hwnd, 0, 0, 0,
 597                              rect_window.right - rect_window.left,
 598                              rect_window.bottom - rect_window.top, SWP_NOMOVE);
 599             }
 600         }
 601         UpdateRects(vd, cfg, source, is_forced);
 602         return VLC_SUCCESS;
 603     }
 604     case VOUT_DISPLAY_CHANGE_WINDOW_STATE: {       /* unsigned state */
 605         const unsigned state = va_arg(args, unsigned);
 606         const bool is_on_top = (state & VOUT_WINDOW_STATE_ABOVE) != 0;
 607 #ifdef MODULE_NAME_IS_direct3d
 608         if (sys->use_desktop && is_on_top)
 609             return VLC_EGENERIC;
 610 #endif
 611         if (sys->parent_window) {
 612             if (vout_window_SetState(sys->parent_window, state))
 613                 return VLC_EGENERIC;
 614         } else {
 615             HMENU hMenu = GetSystemMenu(sys->hwnd, FALSE);
 616
 617             if (is_on_top && !(GetWindowLong(sys->hwnd, GWL_EXSTYLE) & WS_EX_TOPMOST)) {
 618                 CheckMenuItem(hMenu, IDM_TOGGLE_ON_TOP, MF_BYCOMMAND | MFS_CHECKED);
 619                 SetWindowPos(sys->hwnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE);
 620             } else if (!is_on_top && (GetWindowLong(sys->hwnd, GWL_EXSTYLE) & WS_EX_TOPMOST)) {
 621                 CheckMenuItem(hMenu, IDM_TOGGLE_ON_TOP, MF_BYCOMMAND | MFS_UNCHECKED);
 622                 SetWindowPos(sys->hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOSIZE|SWP_NOMOVE);
 623             }
 624         }
 625         sys->is_on_top = is_on_top;
 626         return VLC_SUCCESS;
 627     }
 628     case VOUT_DISPLAY_CHANGE_FULLSCREEN: {   /* const vout_display_cfg_t *p_cfg */
 629         const vout_display_cfg_t *cfg = va_arg(args, const vout_display_cfg_t *);
 630         return CommonControlSetFullscreen(vd, cfg->is_fullscreen);
 631     }
 632
 633     case VOUT_DISPLAY_RESET_PICTURES:
 634     case VOUT_DISPLAY_HIDE_MOUSE:
 635         assert(0);
 636     default:
 637         return VLC_EGENERIC;
 638     }
 639 }
 640
 641 #ifndef UNDER_CE
 642 static void DisableScreensaver(vout_display_t *vd)
 643 {
 644     vout_display_sys_t *sys = vd->sys;
 645
 646     /* disable screensaver by temporarily changing system settings */
 647     sys->i_spi_lowpowertimeout = 0;
 648     sys->i_spi_powerofftimeout = 0;
 649     sys->i_spi_screensavetimeout = 0;
 650     if (var_GetBool(vd, "disable-screensaver")) {
 651         msg_Dbg(vd, "disabling screen saver");
 652         SystemParametersInfo(SPI_GETLOWPOWERTIMEOUT, 0,
 653                              &sys->i_spi_lowpowertimeout, 0);
 654         if (0 != sys->i_spi_lowpowertimeout) {
 655             SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT, 0, NULL, 0);
 656         }
 657         SystemParametersInfo(SPI_GETPOWEROFFTIMEOUT, 0,
 658                              &sys->i_spi_powerofftimeout, 0);
 659         if (0 != sys->i_spi_powerofftimeout) {
 660             SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT, 0, NULL, 0);
 661         }
 662         SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0,
 663                              &sys->i_spi_screensavetimeout, 0);
 664         if (0 != sys->i_spi_screensavetimeout) {
 665             SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, 0, NULL, 0);
 666         }
 667     }
 668 }
 669
 670 static void RestoreScreensaver(vout_display_t *vd)
 671 {
 672     vout_display_sys_t *sys = vd->sys;
 673
 674     /* restore screensaver system settings */
 675     if (0 != sys->i_spi_lowpowertimeout) {
 676         SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT,
 677                              sys->i_spi_lowpowertimeout, NULL, 0);
 678     }
 679     if (0 != sys->i_spi_powerofftimeout) {
 680         SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT,
 681                              sys->i_spi_powerofftimeout, NULL, 0);
 682     }
 683     if (0 != sys->i_spi_screensavetimeout) {
 684         SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT,
 685                              sys->i_spi_screensavetimeout, NULL, 0);
 686     }
 687 }
 688 #endif
 689