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 #ifdef MODULE_NAME_IS_direct2d
  52 #include <d2d1.h>
  53 #endif
  54
  55 #include "common.h"
  56
  57 #ifndef UNDER_CE
  58 #include <vlc_windows_interfaces.h>
  59 #endif
  60
  61 #ifdef UNDER_CE
  62 #include <aygshell.h>
  63     //WINSHELLAPI BOOL WINAPI SHFullScreen(HWND hwndRequester, DWORD dwState);
  64 #endif
  65
  66 static void CommonChangeThumbnailClip(vout_display_t *, bool show);
  67 static int CommonControlSetFullscreen(vout_display_t *, bool is_fullscreen);
  68
  69 static void DisableScreensaver(vout_display_t *);
  70 static void RestoreScreensaver(vout_display_t *);
  71
  72 /* */
  73 int CommonInit(vout_display_t *vd)
  74 {
  75     vout_display_sys_t *sys = vd->sys;
  76
  77     sys->hwnd      = NULL;
  78     sys->hvideownd = NULL;
  79     sys->hparent   = NULL;
  80     sys->hfswnd    = NULL;
  81     sys->changes   = 0;
  82     SetRectEmpty(&sys->rect_display);
  83     SetRectEmpty(&sys->rect_parent);
  84     sys->is_first_display = true;
  85     sys->is_on_top = false;
  86
  87     var_Create(vd, "video-title", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
  88     var_Create(vd, "video-deco", VLC_VAR_BOOL | 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
 196 /**
 197  * It ensures that the video window is shown after the first picture
 198  * is displayed.
 199  */
 200 void CommonDisplay(vout_display_t *vd)
 201 {
 202     vout_display_sys_t *sys = vd->sys;
 203
 204     if (!sys->is_first_display)
 205         return;
 206
 207     /* Video window is initially hidden, show it now since we got a
 208      * picture to show.
 209      */
 210     SetWindowPos(sys->hvideownd, 0, 0, 0, 0, 0,
 211                  SWP_ASYNCWINDOWPOS|
 212                  SWP_FRAMECHANGED|
 213                  SWP_SHOWWINDOW|
 214                  SWP_NOMOVE|
 215                  SWP_NOSIZE|
 216                  SWP_NOZORDER);
 217     sys->is_first_display = false;
 218 }
 219
 220 /**
 221  * It updates a picture data/pitches.
 222  */
 223 int CommonUpdatePicture(picture_t *picture, picture_t **fallback,
 224                         uint8_t *data, unsigned pitch)
 225 {
 226     if (fallback) {
 227         if (*fallback == NULL) {
 228             *fallback = picture_NewFromFormat(&picture->format);
 229             if (*fallback == NULL)
 230                 return VLC_EGENERIC;
 231         }
 232         for (int n = 0; n < picture->i_planes; n++) {
 233             const plane_t *src = &(*fallback)->p[n];
 234             plane_t       *dst = &picture->p[n];
 235             dst->p_pixels = src->p_pixels;
 236             dst->i_pitch  = src->i_pitch;
 237             dst->i_lines  = src->i_lines;
 238         }
 239         return VLC_SUCCESS;
 240     }
 241     /* fill in buffer info in first plane */
 242     picture->p->p_pixels = data;
 243     picture->p->i_pitch  = pitch;
 244     picture->p->i_lines  = picture->format.i_height;
 245
 246     /*  Fill chroma planes for planar YUV */
 247     if (picture->format.i_chroma == VLC_CODEC_I420 ||
 248         picture->format.i_chroma == VLC_CODEC_J420 ||
 249         picture->format.i_chroma == VLC_CODEC_YV12) {
 250
 251         for (int n = 1; n < picture->i_planes; n++) {
 252             const plane_t *o = &picture->p[n-1];
 253             plane_t *p = &picture->p[n];
 254
 255             p->p_pixels = o->p_pixels + o->i_lines * o->i_pitch;
 256             p->i_pitch  = pitch / 2;
 257             p->i_lines  = picture->format.i_height / 2;
 258         }
 259         /* The dx/d3d buffer is always allocated as YV12 */
 260         if (vlc_fourcc_AreUVPlanesSwapped(picture->format.i_chroma, VLC_CODEC_YV12)) {
 261             uint8_t *p_tmp = picture->p[1].p_pixels;
 262             picture->p[1].p_pixels = picture->p[2].p_pixels;
 263             picture->p[2].p_pixels = p_tmp;
 264         }
 265     }
 266     return VLC_SUCCESS;
 267 }
 268
 269 void AlignRect(RECT *r, int align_boundary, int align_size)
 270 {
 271     if (align_boundary)
 272         r->left = (r->left + align_boundary/2) & ~align_boundary;
 273     if (align_size)
 274         r->right = ((r->right - r->left + align_size/2) & ~align_size) + r->left;
 275 }
 276
 277 /* */
 278 static void CommonChangeThumbnailClip(vout_display_t *vd, bool show)
 279 {
 280 #ifndef UNDER_CE
 281     vout_display_sys_t *sys = vd->sys;
 282
 283     /* Windows 7 taskbar thumbnail code */
 284     OSVERSIONINFO winVer;
 285     winVer.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 286     if (!GetVersionEx(&winVer) || winVer.dwMajorVersion <= 5)
 287         return;
 288
 289     CoInitialize(0);
 290
 291     LPTASKBARLIST3 taskbl;
 292     if (S_OK == CoCreateInstance(&clsid_ITaskbarList,
 293                                  NULL, CLSCTX_INPROC_SERVER,
 294                                  &IID_ITaskbarList3,
 295                                  &taskbl)) {
 296         taskbl->vt->HrInit(taskbl);
 297
 298         HWND hroot = GetAncestor(sys->hwnd,GA_ROOT);
 299         RECT relative;
 300         if (show) {
 301             RECT video, parent;
 302             GetWindowRect(sys->hvideownd, &video);
 303             GetWindowRect(hroot, &parent);
 304             relative.left   = video.left   - parent.left - 8;
 305             relative.top    = video.top    - parent.top - 10;
 306
 307             relative.right  = video.right  - video.left + relative.left;
 308             relative.bottom = video.bottom - video.top  + relative.top - 25;
 309         }
 310         if (S_OK != taskbl->vt->SetThumbnailClip(taskbl, hroot,
 311                                                  show ? &relative : NULL))
 312             msg_Err(vd, "SetThumbNailClip failed");
 313
 314         taskbl->vt->Release(taskbl);
 315     }
 316     CoUninitialize();
 317 #endif
 318 }
 319
 320 /*****************************************************************************
 321  * UpdateRects: update clipping rectangles
 322  *****************************************************************************
 323  * This function is called when the window position or size are changed, and
 324  * its job is to update the source and destination RECTs used to display the
 325  * picture.
 326  *****************************************************************************/
 327 void UpdateRects(vout_display_t *vd,
 328                   const vout_display_cfg_t *cfg,
 329                   const video_format_t *source,
 330                   bool is_forced)
 331 {
 332     vout_display_sys_t *sys = vd->sys;
 333 #define rect_src sys->rect_src
 334 #define rect_src_clipped sys->rect_src_clipped
 335 #define rect_dest sys->rect_dest
 336 #define rect_dest_clipped sys->rect_dest_clipped
 337
 338     RECT  rect;
 339     POINT point;
 340
 341     /* */
 342     if (!cfg)
 343         cfg = vd->cfg;
 344     if (!source)
 345         source = &vd->source;
 346
 347     /* Retrieve the window size */
 348     GetClientRect(sys->hwnd, &rect);
 349
 350     /* Retrieve the window position */
 351     point.x = point.y = 0;
 352     ClientToScreen(sys->hwnd, &point);
 353
 354     /* If nothing changed, we can return */
 355     bool has_moved;
 356     bool is_resized;
 357     EventThreadUpdateWindowPosition(sys->event, &has_moved, &is_resized,
 358                                     point.x, point.y,
 359                                     rect.right, rect.bottom);
 360     if (is_resized)
 361         vout_display_SendEventDisplaySize(vd, rect.right, rect.bottom, cfg->is_fullscreen);
 362     if (!is_forced && !has_moved && !is_resized )
 363         return;
 364
 365     /* Update the window position and size */
 366     vout_display_cfg_t place_cfg = *cfg;
 367     place_cfg.display.width  = rect.right;
 368     place_cfg.display.height = rect.bottom;
 369
 370     vout_display_place_t place;
 371     vout_display_PlacePicture(&place, source, &place_cfg, false);
 372
 373     EventThreadUpdateSourceAndPlace(sys->event, source, &place);
 374 #if defined(MODULE_NAME_IS_wingapi)
 375     if (place.width != vd->fmt.i_width || place.height != vd->fmt.i_height)
 376         vout_display_SendEventPicturesInvalid(vd);
 377 #endif
 378
 379     if (sys->hvideownd)
 380         SetWindowPos(sys->hvideownd, 0,
 381                      place.x, place.y, place.width, place.height,
 382                      SWP_NOCOPYBITS|SWP_NOZORDER|SWP_ASYNCWINDOWPOS);
 383
 384     /* Destination image position and dimensions */
 385 #if defined(MODULE_NAME_IS_direct3d) || defined(MODULE_NAME_IS_direct2d)
 386     rect_dest.left   = 0;
 387     rect_dest.right  = place.width;
 388     rect_dest.top    = 0;
 389     rect_dest.bottom = place.height;
 390 #else
 391     rect_dest.left = point.x + place.x;
 392     rect_dest.right = rect_dest.left + place.width;
 393     rect_dest.top = point.y + place.y;
 394     rect_dest.bottom = rect_dest.top + place.height;
 395
 396 #ifdef MODULE_NAME_IS_directx
 397     /* Apply overlay hardware constraints */
 398     if (sys->use_overlay)
 399         AlignRect(&rect_dest, sys->i_align_dest_boundary, sys->i_align_dest_size);
 400 #endif
 401
 402 #endif
 403
 404 #if defined(MODULE_NAME_IS_directx) || defined(MODULE_NAME_IS_direct3d) || defined(MODULE_NAME_IS_direct2d)
 405     /* UpdateOverlay directdraw function doesn't automatically clip to the
 406      * display size so we need to do it otherwise it will fail
 407      * It is also needed for d3d to avoid exceding our surface size */
 408
 409     /* Clip the destination window */
 410     if (!IntersectRect(&rect_dest_clipped, &rect_dest,
 411                        &sys->rect_display)) {
 412         SetRectEmpty(&rect_src_clipped);
 413         goto exit;
 414     }
 415
 416 #ifndef NDEBUG
 417     msg_Dbg(vd, "DirectXUpdateRects image_dst_clipped coords:"
 418                 " %li,%li,%li,%li",
 419                 rect_dest_clipped.left, rect_dest_clipped.top,
 420                 rect_dest_clipped.right, rect_dest_clipped.bottom);
 421 #endif
 422
 423 #else
 424
 425     /* AFAIK, there are no clipping constraints in Direct3D, OpenGL and GDI */
 426     rect_dest_clipped = rect_dest;
 427
 428 #endif
 429
 430     /* the 2 following lines are to fix a bug when clicking on the desktop */
 431     if ((rect_dest_clipped.right - rect_dest_clipped.left) == 0 ||
 432         (rect_dest_clipped.bottom - rect_dest_clipped.top) == 0) {
 433         SetRectEmpty(&rect_src_clipped);
 434         goto exit;
 435     }
 436
 437     /* src image dimensions */
 438     rect_src.left   = 0;
 439     rect_src.top    = 0;
 440     rect_src.right  = source->i_width;
 441     rect_src.bottom = source->i_height;
 442
 443     /* Clip the source image */
 444     rect_src_clipped.left = source->i_x_offset +
 445       (rect_dest_clipped.left - rect_dest.left) *
 446       source->i_visible_width / (rect_dest.right - rect_dest.left);
 447     rect_src_clipped.right = source->i_x_offset +
 448       source->i_visible_width -
 449       (rect_dest.right - rect_dest_clipped.right) *
 450       source->i_visible_width / (rect_dest.right - rect_dest.left);
 451     rect_src_clipped.top = source->i_y_offset +
 452       (rect_dest_clipped.top - rect_dest.top) *
 453       source->i_visible_height / (rect_dest.bottom - rect_dest.top);
 454     rect_src_clipped.bottom = source->i_y_offset +
 455       source->i_visible_height -
 456       (rect_dest.bottom - rect_dest_clipped.bottom) *
 457       source->i_visible_height / (rect_dest.bottom - rect_dest.top);
 458
 459 #ifdef MODULE_NAME_IS_directx
 460     /* Apply overlay hardware constraints */
 461     if (sys->use_overlay)
 462         AlignRect(&rect_src_clipped, sys->i_align_src_boundary, sys->i_align_src_size);
 463 #elif defined(MODULE_NAME_IS_direct3d) || defined(MODULE_NAME_IS_direct2d)
 464     /* Needed at least with YUV content */
 465     rect_src_clipped.left &= ~1;
 466     rect_src_clipped.right &= ~1;
 467     rect_src_clipped.top &= ~1;
 468     rect_src_clipped.bottom &= ~1;
 469 #endif
 470
 471 #ifndef NDEBUG
 472     msg_Dbg(vd, "DirectXUpdateRects image_src_clipped"
 473                 " coords: %li,%li,%li,%li",
 474                 rect_src_clipped.left, rect_src_clipped.top,
 475                 rect_src_clipped.right, rect_src_clipped.bottom);
 476 #endif
 477
 478 #ifdef MODULE_NAME_IS_directx
 479     /* The destination coordinates need to be relative to the current
 480      * directdraw primary surface (display) */
 481     rect_dest_clipped.left -= sys->rect_display.left;
 482     rect_dest_clipped.right -= sys->rect_display.left;
 483     rect_dest_clipped.top -= sys->rect_display.top;
 484     rect_dest_clipped.bottom -= sys->rect_display.top;
 485 #endif
 486
 487     CommonChangeThumbnailClip(vd, true);
 488
 489 exit:
 490     /* Signal the change in size/position */
 491     sys->changes |= DX_POSITION_CHANGE;
 492
 493 #undef rect_src
 494 #undef rect_src_clipped
 495 #undef rect_dest
 496 #undef rect_dest_clipped
 497 }
 498
 499 static int CommonControlSetFullscreen(vout_display_t *vd, bool is_fullscreen)
 500 {
 501     vout_display_sys_t *sys = vd->sys;
 502
 503 #ifdef MODULE_NAME_IS_direct3d
 504     if (sys->use_desktop && is_fullscreen)
 505         return VLC_EGENERIC;
 506 #endif
 507
 508     /* */
 509     if (sys->parent_window)
 510         return vout_window_SetFullScreen(sys->parent_window, is_fullscreen);
 511
 512     /* */
 513     HWND hwnd = sys->hparent && sys->hfswnd ? sys->hfswnd : sys->hwnd;
 514
 515     /* Save the current windows placement/placement to restore
 516        when fullscreen is over */
 517     WINDOWPLACEMENT window_placement;
 518     window_placement.length = sizeof(WINDOWPLACEMENT);
 519     GetWindowPlacement(hwnd, &window_placement);
 520
 521     if (is_fullscreen) {
 522         msg_Dbg(vd, "entering fullscreen mode");
 523
 524         /* Change window style, no borders and no title bar */
 525         SetWindowLong(hwnd, GWL_STYLE, WS_CLIPCHILDREN | WS_VISIBLE);
 526
 527         if (sys->hparent) {
 528 #ifdef UNDER_CE
 529             POINT point = {0,0};
 530             RECT rect;
 531             ClientToScreen(sys->hwnd, &point);
 532             GetClientRect(sys->hwnd, &rect);
 533             SetWindowPos(hwnd, 0, point.x, point.y,
 534                          rect.right, rect.bottom,
 535                          SWP_NOZORDER|SWP_FRAMECHANGED);
 536 #else
 537             /* Retrieve current window position so fullscreen will happen
 538             *on the right screen */
 539             HMONITOR hmon = MonitorFromWindow(sys->hparent,
 540                                               MONITOR_DEFAULTTONEAREST);
 541             MONITORINFO mi;
 542             mi.cbSize = sizeof(MONITORINFO);
 543             if (GetMonitorInfo(hmon, &mi))
 544                 SetWindowPos(hwnd, 0,
 545                              mi.rcMonitor.left,
 546                              mi.rcMonitor.top,
 547                              mi.rcMonitor.right - mi.rcMonitor.left,
 548                              mi.rcMonitor.bottom - mi.rcMonitor.top,
 549                              SWP_NOZORDER|SWP_FRAMECHANGED);
 550 #endif
 551         } else {
 552             /* Maximize non embedded window */
 553             ShowWindow(hwnd, SW_SHOWMAXIMIZED);
 554         }
 555
 556         if (sys->hparent) {
 557             /* Hide the previous window */
 558             RECT rect;
 559             GetClientRect(hwnd, &rect);
 560             SetParent(sys->hwnd, hwnd);
 561             SetWindowPos(sys->hwnd, 0, 0, 0,
 562                          rect.right, rect.bottom,
 563                          SWP_NOZORDER|SWP_FRAMECHANGED);
 564
 565 #ifdef UNDER_CE
 566             HWND topLevelParent = GetParent(sys->hparent);
 567 #else
 568             HWND topLevelParent = GetAncestor(sys->hparent, GA_ROOT);
 569 #endif
 570             ShowWindow(topLevelParent, SW_HIDE);
 571         }
 572         SetForegroundWindow(hwnd);
 573     } else {
 574         msg_Dbg(vd, "leaving fullscreen mode");
 575
 576         /* Change window style, no borders and no title bar */
 577         SetWindowLong(hwnd, GWL_STYLE, EventThreadGetWindowStyle(sys->event));
 578
 579         if (sys->hparent) {
 580             RECT rect;
 581             GetClientRect(sys->hparent, &rect);
 582             SetParent(sys->hwnd, sys->hparent);
 583             SetWindowPos(sys->hwnd, 0, 0, 0,
 584                          rect.right, rect.bottom,
 585                          SWP_NOZORDER|SWP_FRAMECHANGED);
 586
 587 #ifdef UNDER_CE
 588             HWND topLevelParent = GetParent(sys->hparent);
 589 #else
 590             HWND topLevelParent = GetAncestor(sys->hparent, GA_ROOT);
 591 #endif
 592             ShowWindow(topLevelParent, SW_SHOW);
 593             SetForegroundWindow(sys->hparent);
 594             ShowWindow(hwnd, SW_HIDE);
 595         } else {
 596             /* return to normal window for non embedded vout */
 597             SetWindowPlacement(hwnd, &window_placement);
 598             ShowWindow(hwnd, SW_SHOWNORMAL);
 599         }
 600     }
 601     return VLC_SUCCESS;
 602 }
 603
 604 int CommonControl(vout_display_t *vd, int query, va_list args)
 605 {
 606     vout_display_sys_t *sys = vd->sys;
 607
 608     switch (query) {
 609     case VOUT_DISPLAY_CHANGE_DISPLAY_SIZE:   /* const vout_display_cfg_t *p_cfg, int is_forced */
 610     case VOUT_DISPLAY_CHANGE_DISPLAY_FILLED: /* const vout_display_cfg_t *p_cfg */
 611     case VOUT_DISPLAY_CHANGE_ZOOM:           /* const vout_display_cfg_t *p_cfg */
 612     case VOUT_DISPLAY_CHANGE_SOURCE_ASPECT:  /* const video_format_t *p_source */
 613     case VOUT_DISPLAY_CHANGE_SOURCE_CROP: {  /* const video_format_t *p_source */
 614         const vout_display_cfg_t *cfg;
 615         const video_format_t *source;
 616         bool  is_forced = true;
 617         if (query == VOUT_DISPLAY_CHANGE_SOURCE_CROP ||
 618             query == VOUT_DISPLAY_CHANGE_SOURCE_ASPECT) {
 619             cfg    = vd->cfg;
 620             source = va_arg(args, const video_format_t *);
 621         } else {
 622             cfg    = va_arg(args, const vout_display_cfg_t *);
 623             source = &vd->source;
 624             if (query == VOUT_DISPLAY_CHANGE_DISPLAY_SIZE)
 625                 is_forced = va_arg(args, int);
 626         }
 627         if (query == VOUT_DISPLAY_CHANGE_DISPLAY_SIZE && is_forced) {
 628             /* Update dimensions */
 629             if (sys->parent_window) {
 630                 vout_window_SetSize(sys->parent_window, cfg->display.width, cfg->display.height);
 631             } else {
 632                 RECT rect_window;
 633                 rect_window.top    = 0;
 634                 rect_window.left   = 0;
 635                 rect_window.right  = cfg->display.width;
 636                 rect_window.bottom = cfg->display.height;
 637                 AdjustWindowRect(&rect_window, EventThreadGetWindowStyle(sys->event), 0);
 638
 639                 SetWindowPos(sys->hwnd, 0, 0, 0,
 640                              rect_window.right - rect_window.left,
 641                              rect_window.bottom - rect_window.top, SWP_NOMOVE);
 642             }
 643         }
 644         UpdateRects(vd, cfg, source, is_forced);
 645         return VLC_SUCCESS;
 646     }
 647     case VOUT_DISPLAY_CHANGE_WINDOW_STATE: {       /* unsigned state */
 648         const unsigned state = va_arg(args, unsigned);
 649         const bool is_on_top = (state & VOUT_WINDOW_STATE_ABOVE) != 0;
 650 #ifdef MODULE_NAME_IS_direct3d
 651         if (sys->use_desktop && is_on_top)
 652             return VLC_EGENERIC;
 653 #endif
 654         if (sys->parent_window) {
 655             if (vout_window_SetState(sys->parent_window, state))
 656                 return VLC_EGENERIC;
 657         } else {
 658             HMENU hMenu = GetSystemMenu(sys->hwnd, FALSE);
 659
 660             if (is_on_top && !(GetWindowLong(sys->hwnd, GWL_EXSTYLE) & WS_EX_TOPMOST)) {
 661                 CheckMenuItem(hMenu, IDM_TOGGLE_ON_TOP, MF_BYCOMMAND | MFS_CHECKED);
 662                 SetWindowPos(sys->hwnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE);
 663             } else if (!is_on_top && (GetWindowLong(sys->hwnd, GWL_EXSTYLE) & WS_EX_TOPMOST)) {
 664                 CheckMenuItem(hMenu, IDM_TOGGLE_ON_TOP, MF_BYCOMMAND | MFS_UNCHECKED);
 665                 SetWindowPos(sys->hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOSIZE|SWP_NOMOVE);
 666             }
 667         }
 668         sys->is_on_top = is_on_top;
 669         return VLC_SUCCESS;
 670     }
 671     case VOUT_DISPLAY_CHANGE_FULLSCREEN: {   /* const vout_display_cfg_t *p_cfg */
 672         const vout_display_cfg_t *cfg = va_arg(args, const vout_display_cfg_t *);
 673         if (CommonControlSetFullscreen(vd, cfg->is_fullscreen))
 674             return VLC_EGENERIC;
 675         UpdateRects(vd, NULL, NULL, false);
 676         return VLC_SUCCESS;
 677     }
 678
 679     case VOUT_DISPLAY_HIDE_MOUSE:
 680         EventThreadMouseHide(sys->event);
 681         return VLC_SUCCESS;
 682     case VOUT_DISPLAY_RESET_PICTURES:
 683         assert(0);
 684     default:
 685         return VLC_EGENERIC;
 686     }
 687 }
 688
 689 #ifndef UNDER_CE
 690 static void DisableScreensaver(vout_display_t *vd)
 691 {
 692     vout_display_sys_t *sys = vd->sys;
 693
 694     /* disable screensaver by temporarily changing system settings */
 695     sys->i_spi_lowpowertimeout = 0;
 696     sys->i_spi_powerofftimeout = 0;
 697     sys->i_spi_screensavetimeout = 0;
 698     if (var_GetBool(vd, "disable-screensaver")) {
 699         msg_Dbg(vd, "disabling screen saver");
 700         SystemParametersInfo(SPI_GETLOWPOWERTIMEOUT, 0,
 701                              &sys->i_spi_lowpowertimeout, 0);
 702         if (0 != sys->i_spi_lowpowertimeout) {
 703             SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT, 0, NULL, 0);
 704         }
 705         SystemParametersInfo(SPI_GETPOWEROFFTIMEOUT, 0,
 706                              &sys->i_spi_powerofftimeout, 0);
 707         if (0 != sys->i_spi_powerofftimeout) {
 708             SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT, 0, NULL, 0);
 709         }
 710         SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0,
 711                              &sys->i_spi_screensavetimeout, 0);
 712         if (0 != sys->i_spi_screensavetimeout) {
 713             SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, 0, NULL, 0);
 714         }
 715     }
 716 }
 717
 718 static void RestoreScreensaver(vout_display_t *vd)
 719 {
 720     vout_display_sys_t *sys = vd->sys;
 721
 722     /* restore screensaver system settings */
 723     if (0 != sys->i_spi_lowpowertimeout) {
 724         SystemParametersInfo(SPI_SETLOWPOWERTIMEOUT,
 725                              sys->i_spi_lowpowertimeout, NULL, 0);
 726     }
 727     if (0 != sys->i_spi_powerofftimeout) {
 728         SystemParametersInfo(SPI_SETPOWEROFFTIMEOUT,
 729                              sys->i_spi_powerofftimeout, NULL, 0);
 730     }
 731     if (0 != sys->i_spi_screensavetimeout) {
 732         SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT,
 733                              sys->i_spi_screensavetimeout, NULL, 0);
 734     }
 735 }
 736 #endif
 737