libvo/w32_common.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <limits.h>
  21 #include <windows.h>
  22 #include <windowsx.h>
  23
  24 // To get "#define vo_ontop global_vo->opts->vo_ontop" etc
  25 #include "old_vo_defines.h"
  26 #include "input/keycodes.h"
  27 #include "input/input.h"
  28 #include "mp_msg.h"
  29 #include "video_out.h"
  30 #include "aspect.h"
  31 #include "w32_common.h"
  32 #include "mp_fifo.h"
  33
  34 #ifndef WM_XBUTTONDOWN
  35 # define WM_XBUTTONDOWN    0x020B
  36 # define WM_XBUTTONUP      0x020C
  37 # define WM_XBUTTONDBLCLK  0x020D
  38 #endif
  39
  40 #ifndef MONITOR_DEFAULTTOPRIMARY
  41 #define MONITOR_DEFAULTTOPRIMARY 1
  42 #endif
  43
  44 static const char classname[] = "MPlayer - The Movie Player";
  45 int vo_vm = 0;
  46
  47 static int depthonscreen;
  48 // last non-fullscreen extends
  49 static int prev_width;
  50 static int prev_height;
  51 static int prev_x;
  52 static int prev_y;
  53
  54 static uint32_t o_dwidth;
  55 static uint32_t o_dheight;
  56
  57 static HINSTANCE hInstance;
  58 #define vo_window vo_w32_window
  59 HWND vo_window = 0;
  60 /** HDC used when rendering to a device instead of window */
  61 static HDC dev_hdc;
  62 static int event_flags;
  63 static int mon_cnt;
  64
  65 static HMONITOR (WINAPI* myMonitorFromWindow)(HWND, DWORD);
  66 static BOOL (WINAPI* myGetMonitorInfo)(HMONITOR, LPMONITORINFO);
  67 static BOOL (WINAPI* myEnumDisplayMonitors)(HDC, LPCRECT, MONITORENUMPROC, LPARAM);
  68
  69 static const struct mp_keymap vk_map[] = {
  70     // special keys
  71     {VK_ESCAPE, KEY_ESC}, {VK_BACK, KEY_BS}, {VK_TAB, KEY_TAB}, {VK_CONTROL, KEY_CTRL},
  72
  73     // cursor keys
  74     {VK_LEFT, KEY_LEFT}, {VK_UP, KEY_UP}, {VK_RIGHT, KEY_RIGHT}, {VK_DOWN, KEY_DOWN},
  75
  76     // navigation block
  77     {VK_INSERT, KEY_INSERT}, {VK_DELETE, KEY_DELETE}, {VK_HOME, KEY_HOME}, {VK_END, KEY_END},
  78     {VK_PRIOR, KEY_PAGE_UP}, {VK_NEXT, KEY_PAGE_DOWN},
  79
  80     // F-keys
  81     {VK_F1, KEY_F+1}, {VK_F2, KEY_F+2}, {VK_F3, KEY_F+3}, {VK_F4, KEY_F+4},
  82     {VK_F5, KEY_F+5}, {VK_F6, KEY_F+6}, {VK_F7, KEY_F+7}, {VK_F8, KEY_F+8},
  83     {VK_F9, KEY_F+9}, {VK_F10, KEY_F+10}, {VK_F11, KEY_F+11}, {VK_F1, KEY_F+12},
  84     // numpad
  85     {VK_NUMPAD0, KEY_KP0}, {VK_NUMPAD1, KEY_KP1}, {VK_NUMPAD2, KEY_KP2},
  86     {VK_NUMPAD3, KEY_KP3}, {VK_NUMPAD4, KEY_KP4}, {VK_NUMPAD5, KEY_KP5},
  87     {VK_NUMPAD6, KEY_KP6}, {VK_NUMPAD7, KEY_KP7}, {VK_NUMPAD8, KEY_KP8},
  88     {VK_NUMPAD9, KEY_KP9}, {VK_DECIMAL, KEY_KPDEC},
  89
  90     {0, 0}
  91 };
  92
  93 static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
  94     RECT r;
  95     POINT p;
  96     int mpkey;
  97     switch (message) {
  98         case WM_ERASEBKGND: // no need to erase background seperately
  99             return 1;
 100         case WM_PAINT:
 101             event_flags |= VO_EVENT_EXPOSE;
 102             break;
 103         case WM_MOVE:
 104             event_flags |= VO_EVENT_MOVE;
 105             p.x = 0;
 106             p.y = 0;
 107             ClientToScreen(vo_window, &p);
 108             vo_dx = p.x;
 109             vo_dy = p.y;
 110             break;
 111         case WM_SIZE:
 112             event_flags |= VO_EVENT_RESIZE;
 113             GetClientRect(vo_window, &r);
 114             vo_dwidth = r.right;
 115             vo_dheight = r.bottom;
 116             break;
 117         case WM_WINDOWPOSCHANGING:
 118             if (vo_keepaspect && !vo_fs && WinID < 0) {
 119                 WINDOWPOS *wpos = lParam;
 120                 int xborder, yborder;
 121                 r.left = r.top = 0;
 122                 r.right = wpos->cx;
 123                 r.bottom = wpos->cy;
 124                 AdjustWindowRect(&r, GetWindowLong(vo_window, GWL_STYLE), 0);
 125                 xborder = (r.right - r.left) - wpos->cx;
 126                 yborder = (r.bottom - r.top) - wpos->cy;
 127                 wpos->cx -= xborder; wpos->cy -= yborder;
 128                 aspect_fit(global_vo, &wpos->cx, &wpos->cy, wpos->cx, wpos->cy);
 129                 wpos->cx += xborder; wpos->cy += yborder;
 130             }
 131             return 0;
 132         case WM_CLOSE:
 133             mplayer_put_key(KEY_CLOSE_WIN);
 134             break;
 135         case WM_SYSCOMMAND:
 136             switch (wParam) {
 137                 case SC_SCREENSAVE:
 138                 case SC_MONITORPOWER:
 139                     mp_msg(MSGT_VO, MSGL_V, "vo: win32: killing screensaver\n");
 140                     return 0;
 141             }
 142             break;
 143         case WM_KEYDOWN:
 144             mpkey = lookup_keymap_table(vk_map, wParam);
 145             if (mpkey)
 146                 mplayer_put_key(mpkey);
 147             break;
 148         case WM_CHAR:
 149             mplayer_put_key(wParam);
 150             break;
 151         case WM_LBUTTONDOWN:
 152             if (!vo_nomouse_input && (vo_fs || (wParam & MK_CONTROL))) {
 153                 mplayer_put_key(MOUSE_BTN0);
 154                 break;
 155             }
 156             if (!vo_fs) {
 157                 ReleaseCapture();
 158                 SendMessage(hWnd, WM_NCLBUTTONDOWN, HTCAPTION, 0);
 159                 return 0;
 160             }
 161             break;
 162         case WM_MBUTTONDOWN:
 163             if (!vo_nomouse_input)
 164                 mplayer_put_key(MOUSE_BTN1);
 165             break;
 166         case WM_RBUTTONDOWN:
 167             if (!vo_nomouse_input)
 168                 mplayer_put_key(MOUSE_BTN2);
 169             break;
 170         case WM_MOUSEMOVE:
 171             vo_mouse_movement(global_vo, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
 172             break;
 173         case WM_MOUSEWHEEL:
 174             if (!vo_nomouse_input) {
 175                 int x = GET_WHEEL_DELTA_WPARAM(wParam);
 176                 if (x > 0)
 177                     mplayer_put_key(MOUSE_BTN3);
 178                 else
 179                     mplayer_put_key(MOUSE_BTN4);
 180             }
 181             break;
 182         case WM_XBUTTONDOWN:
 183             if (!vo_nomouse_input) {
 184                 int x = HIWORD(wParam);
 185                 if (x == 1)
 186                     mplayer_put_key(MOUSE_BTN5);
 187                 else // if (x == 2)
 188                     mplayer_put_key(MOUSE_BTN6);
 189             }
 190             break;
 191     }
 192
 193     return DefWindowProc(hWnd, message, wParam, lParam);
 194 }
 195
 196 /**
 197  * \brief Dispatch incoming window events and handle them.
 198  *
 199  * This function should be placed inside libvo's function "check_events".
 200  *
 201  * Global libvo variables changed:
 202  * vo_dwidth:  new window client area width
 203  * vo_dheight: new window client area height
 204  *
 205  * \return int with these flags possibly set, take care to handle in the right order
 206  *         if it matters in your driver:
 207  *
 208  * VO_EVENT_RESIZE = The window was resized. If necessary reinit your
 209  *                   driver render context accordingly.
 210  * VO_EVENT_EXPOSE = The window was exposed. Call e.g. flip_frame() to redraw
 211  *                   the window if the movie is paused.
 212  */
 213 int vo_w32_check_events(void) {
 214     MSG msg;
 215     event_flags = 0;
 216     while (PeekMessage(&msg, 0, 0, 0, PM_REMOVE)) {
 217         TranslateMessage(&msg);
 218         DispatchMessage(&msg);
 219     }
 220     if (WinID >= 0) {
 221         BOOL res;
 222         RECT r;
 223         POINT p;
 224         res = GetClientRect(vo_window, &r);
 225         if (res && (r.right != vo_dwidth || r.bottom != vo_dheight)) {
 226             vo_dwidth = r.right; vo_dheight = r.bottom;
 227             event_flags |= VO_EVENT_RESIZE;
 228         }
 229         p.x = 0; p.y = 0;
 230         ClientToScreen(vo_window, &p);
 231         if (p.x != vo_dx || p.y != vo_dy) {
 232             vo_dx = p.x; vo_dy = p.y;
 233             event_flags |= VO_EVENT_MOVE;
 234         }
 235         res = GetClientRect(WinID, &r);
 236         if (res && (r.right != vo_dwidth || r.bottom != vo_dheight))
 237             MoveWindow(vo_window, 0, 0, r.right, r.bottom, FALSE);
 238         if (!IsWindow(WinID))
 239             // Window has probably been closed, e.g. due to program crash
 240             mplayer_put_key(KEY_CLOSE_WIN);
 241     }
 242
 243     return event_flags;
 244 }
 245
 246 static BOOL CALLBACK mon_enum(HMONITOR hmon, HDC hdc, LPRECT r, LPARAM p) {
 247     // this defaults to the last screen if specified number does not exist
 248     xinerama_x = r->left;
 249     xinerama_y = r->top;
 250     vo_screenwidth = r->right - r->left;
 251     vo_screenheight = r->bottom - r->top;
 252     if (mon_cnt == xinerama_screen)
 253         return FALSE;
 254     mon_cnt++;
 255     return TRUE;
 256 }
 257
 258 /**
 259  * \brief Update screen information.
 260  *
 261  * This function should be called in libvo's "control" callback
 262  * with parameter VOCTRL_UPDATE_SCREENINFO.
 263  * Note that this also enables the new API where geometry and aspect
 264  * calculations are done in video_out.c:config_video_out
 265  *
 266  * Global libvo variables changed:
 267  * xinerama_x
 268  * xinerama_y
 269  * vo_screenwidth
 270  * vo_screenheight
 271  */
 272 void w32_update_xinerama_info(void) {
 273     xinerama_x = xinerama_y = 0;
 274     if (xinerama_screen < -1) {
 275         int tmp;
 276         xinerama_x = GetSystemMetrics(SM_XVIRTUALSCREEN);
 277         xinerama_y = GetSystemMetrics(SM_YVIRTUALSCREEN);
 278         tmp = GetSystemMetrics(SM_CXVIRTUALSCREEN);
 279         if (tmp) vo_screenwidth = tmp;
 280         tmp = GetSystemMetrics(SM_CYVIRTUALSCREEN);
 281         if (tmp) vo_screenheight = tmp;
 282     } else if (xinerama_screen == -1 && myMonitorFromWindow && myGetMonitorInfo) {
 283         MONITORINFO mi;
 284         HMONITOR m = myMonitorFromWindow(vo_window, MONITOR_DEFAULTTOPRIMARY);
 285         mi.cbSize = sizeof(mi);
 286         myGetMonitorInfo(m, &mi);
 287         xinerama_x = mi.rcMonitor.left;
 288         xinerama_y = mi.rcMonitor.top;
 289         vo_screenwidth = mi.rcMonitor.right - mi.rcMonitor.left;
 290         vo_screenheight = mi.rcMonitor.bottom - mi.rcMonitor.top;
 291     } else if (xinerama_screen > 0 && myEnumDisplayMonitors) {
 292         mon_cnt = 0;
 293         myEnumDisplayMonitors(NULL, NULL, mon_enum, 0);
 294     }
 295     aspect_save_screenres(vo_screenwidth, vo_screenheight);
 296 }
 297
 298 static void updateScreenProperties(void) {
 299     DEVMODE dm;
 300     dm.dmSize = sizeof dm;
 301     dm.dmDriverExtra = 0;
 302     dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
 303     if (!EnumDisplaySettings(0, ENUM_CURRENT_SETTINGS, &dm)) {
 304         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to enumerate display settings!\n");
 305         return;
 306     }
 307
 308     vo_screenwidth = dm.dmPelsWidth;
 309     vo_screenheight = dm.dmPelsHeight;
 310     depthonscreen = dm.dmBitsPerPel;
 311     w32_update_xinerama_info();
 312 }
 313
 314 static void changeMode(void) {
 315     DEVMODE dm;
 316     dm.dmSize = sizeof dm;
 317     dm.dmDriverExtra = 0;
 318
 319     dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
 320     dm.dmBitsPerPel = depthonscreen;
 321     dm.dmPelsWidth = vo_screenwidth;
 322     dm.dmPelsHeight = vo_screenheight;
 323
 324     if (vo_vm) {
 325         int bestMode = -1;
 326         int bestScore = INT_MAX;
 327         int i;
 328         for (i = 0; EnumDisplaySettings(0, i, &dm); ++i) {
 329             int score = (dm.dmPelsWidth - o_dwidth) * (dm.dmPelsHeight - o_dheight);
 330             if (dm.dmBitsPerPel != depthonscreen) continue;
 331             if (dm.dmPelsWidth < o_dwidth) continue;
 332             if (dm.dmPelsHeight < o_dheight) continue;
 333
 334             if (score < bestScore) {
 335                 bestScore = score;
 336                 bestMode = i;
 337             }
 338         }
 339
 340         if (bestMode != -1)
 341             EnumDisplaySettings(0, bestMode, &dm);
 342
 343         ChangeDisplaySettings(&dm, CDS_FULLSCREEN);
 344     }
 345 }
 346
 347 static void resetMode(void) {
 348     if (vo_vm)
 349     ChangeDisplaySettings(0, 0);
 350 }
 351
 352 static int createRenderingContext(void) {
 353     HWND layer = HWND_NOTOPMOST;
 354     RECT r;
 355     int style = (vo_border && !vo_fs) ?
 356                 (WS_OVERLAPPEDWINDOW | WS_SIZEBOX) : WS_POPUP;
 357
 358     if (WinID >= 0)
 359         return 1;
 360
 361     if (vo_fs || vo_ontop) layer = HWND_TOPMOST;
 362     if (vo_fs) {
 363         changeMode();
 364         while (ShowCursor(0) >= 0) /**/ ;
 365     } else {
 366         resetMode();
 367         while (ShowCursor(1) < 0) /**/ ;
 368     }
 369     updateScreenProperties();
 370     ShowWindow(vo_window, SW_HIDE);
 371     SetWindowLong(vo_window, GWL_STYLE, style);
 372     if (vo_fs) {
 373         prev_width = vo_dwidth;
 374         prev_height = vo_dheight;
 375         prev_x = vo_dx;
 376         prev_y = vo_dy;
 377         vo_dwidth = vo_screenwidth;
 378         vo_dheight = vo_screenheight;
 379         vo_dx = xinerama_x;
 380         vo_dy = xinerama_y;
 381     } else {
 382         // make sure there are no "stale" resize events
 383         // that would set vo_d* to wrong values
 384         vo_w32_check_events();
 385         vo_dwidth = prev_width;
 386         vo_dheight = prev_height;
 387         vo_dx = prev_x;
 388         vo_dy = prev_y;
 389         // HACK around what probably is a windows focus bug:
 390         // when pressing 'f' on the console, then 'f' again to
 391         // return to windowed mode, any input into the video
 392         // window is lost forever.
 393         SetFocus(vo_window);
 394     }
 395     r.left = vo_dx;
 396     r.right = r.left + vo_dwidth;
 397     r.top = vo_dy;
 398     r.bottom = r.top + vo_dheight;
 399     AdjustWindowRect(&r, style, 0);
 400     SetWindowPos(vo_window, layer, r.left, r.top, r.right - r.left, r.bottom - r.top, SWP_SHOWWINDOW);
 401     return 1;
 402 }
 403
 404 /**
 405  * \brief Configure and show window on the screen.
 406  *
 407  * This function should be called in libvo's "config" callback.
 408  * It configures a window and shows it on the screen.
 409  *
 410  * Global libvo variables changed:
 411  * vo_fs
 412  * vo_vm
 413  *
 414  * \return 1 - Success, 0 - Failure
 415  */
 416 int vo_w32_config(uint32_t width, uint32_t height, uint32_t flags) {
 417     PIXELFORMATDESCRIPTOR pfd;
 418     int pf;
 419     HDC vo_hdc = vo_w32_get_dc(vo_window);
 420
 421     memset(&pfd, 0, sizeof pfd);
 422     pfd.nSize = sizeof pfd;
 423     pfd.nVersion = 1;
 424     pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
 425     if (flags & VOFLAG_STEREO)
 426         pfd.dwFlags |= PFD_STEREO;
 427     pfd.iPixelType = PFD_TYPE_RGBA;
 428     pfd.cColorBits = 24;
 429     pfd.iLayerType = PFD_MAIN_PLANE;
 430     pf = ChoosePixelFormat(vo_hdc, &pfd);
 431     if (!pf) {
 432         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to select a valid pixel format!\n");
 433         vo_w32_release_dc(vo_window, vo_hdc);
 434         return 0;
 435     }
 436
 437     SetPixelFormat(vo_hdc, pf, &pfd);
 438     vo_w32_release_dc(vo_window, vo_hdc);
 439
 440     // we already have a fully initialized window, so nothing needs to be done
 441     if (flags & VOFLAG_HIDDEN)
 442         return 1;
 443     // store original size for videomode switching
 444     o_dwidth = width;
 445     o_dheight = height;
 446
 447     if (WinID < 0) {
 448         // the desired size is ignored in wid mode, it always matches the window size.
 449         prev_width = vo_dwidth = width;
 450         prev_height = vo_dheight = height;
 451         prev_x = vo_dx;
 452         prev_y = vo_dy;
 453     }
 454
 455     vo_fs = flags & VOFLAG_FULLSCREEN;
 456     vo_vm = flags & VOFLAG_MODESWITCHING;
 457     return createRenderingContext();
 458 }
 459
 460 /**
 461  * \brief return the name of the selected device if it is indepedant
 462  * \return pointer to string, must be freed.
 463  */
 464 static char *get_display_name(void) {
 465     DISPLAY_DEVICE disp;
 466     disp.cb = sizeof(disp);
 467     EnumDisplayDevices(NULL, vo_adapter_num, &disp, 0);
 468     if (disp.StateFlags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP)
 469         return NULL;
 470     return strdup(disp.DeviceName);
 471 }
 472
 473 /**
 474  * \brief Initialize w32_common framework.
 475  *
 476  * The first function that should be called from the w32_common framework.
 477  * It handles window creation on the screen with proper title and attributes.
 478  * It also initializes the framework's internal variables. The function should
 479  * be called after your own preinit initialization and you shouldn't do any
 480  * window management on your own.
 481  *
 482  * Global libvo variables changed:
 483  * vo_w32_window
 484  * vo_screenwidth
 485  * vo_screenheight
 486  *
 487  * \return 1 = Success, 0 = Failure
 488  */
 489 int vo_w32_init(void) {
 490     HICON mplayerIcon = 0;
 491     char exedir[MAX_PATH];
 492     HINSTANCE user32;
 493     char *dev;
 494
 495     if (vo_window)
 496         return 1;
 497
 498     hInstance = GetModuleHandle(0);
 499
 500     if (GetModuleFileName(0, exedir, MAX_PATH))
 501         mplayerIcon = ExtractIcon(hInstance, exedir, 0);
 502     if (!mplayerIcon)
 503         mplayerIcon = LoadIcon(0, IDI_APPLICATION);
 504
 505   {
 506     WNDCLASSEX wcex = { sizeof wcex, CS_OWNDC | CS_DBLCLKS, WndProc, 0, 0, hInstance, mplayerIcon, LoadCursor(0, IDC_ARROW), NULL, 0, classname, mplayerIcon };
 507
 508     if (!RegisterClassEx(&wcex)) {
 509         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to register window class!\n");
 510         return 0;
 511     }
 512   }
 513
 514     if (WinID >= 0)
 515     {
 516         RECT r;
 517         GetClientRect(WinID, &r);
 518         vo_dwidth = r.right; vo_dheight = r.bottom;
 519         vo_window = CreateWindowEx(WS_EX_NOPARENTNOTIFY, classname, classname,
 520                      WS_CHILD | WS_VISIBLE,
 521                      0, 0, vo_dwidth, vo_dheight, WinID, 0, hInstance, 0);
 522         EnableWindow(vo_window, 0);
 523     } else
 524         vo_window = CreateWindowEx(0, classname, classname,
 525                       vo_border ? (WS_OVERLAPPEDWINDOW | WS_SIZEBOX) : WS_POPUP,
 526                       CW_USEDEFAULT, 0, 100, 100, 0, 0, hInstance, 0);
 527     if (!vo_window) {
 528         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to create window!\n");
 529         return 0;
 530     }
 531
 532     myMonitorFromWindow = NULL;
 533     myGetMonitorInfo = NULL;
 534     myEnumDisplayMonitors = NULL;
 535     user32 = GetModuleHandle("user32.dll");
 536     if (user32) {
 537         myMonitorFromWindow = (void *)GetProcAddress(user32, "MonitorFromWindow");
 538         myGetMonitorInfo = GetProcAddress(user32, "GetMonitorInfoA");
 539         myEnumDisplayMonitors = GetProcAddress(user32, "EnumDisplayMonitors");
 540     }
 541     dev_hdc = 0;
 542     dev = get_display_name();
 543     if (dev) dev_hdc = CreateDC(dev, NULL, NULL, NULL);
 544     free(dev);
 545     updateScreenProperties();
 546
 547     mp_msg(MSGT_VO, MSGL_V, "vo: win32: running at %dx%d with depth %d\n", vo_screenwidth, vo_screenheight, depthonscreen);
 548
 549     return 1;
 550 }
 551
 552 /**
 553  * \brief Toogle fullscreen / windowed mode.
 554  *
 555  * Should be called on VOCTRL_FULLSCREEN event. The window is
 556  * always resized after this call, so the rendering context
 557  * should be reinitialized with the new dimensions.
 558  * It is unspecified if vo_check_events will create a resize
 559  * event in addition or not.
 560  *
 561  * Global libvo variables changed:
 562  * vo_dwidth
 563  * vo_dheight
 564  * vo_fs
 565  */
 566
 567 void vo_w32_fullscreen(void) {
 568     vo_fs = !vo_fs;
 569
 570     createRenderingContext();
 571 }
 572
 573 /**
 574  * \brief Toogle window border attribute.
 575  *
 576  * Should be called on VOCTRL_BORDER event.
 577  *
 578  * Global libvo variables changed:
 579  * vo_border
 580  */
 581 void vo_w32_border(void) {
 582     vo_border = !vo_border;
 583     createRenderingContext();
 584 }
 585
 586 /**
 587  * \brief Toogle window ontop attribute.
 588  *
 589  * Should be called on VOCTRL_ONTOP event.
 590  *
 591  * Global libvo variables changed:
 592  * vo_ontop
 593  */
 594 void vo_w32_ontop( void )
 595 {
 596     vo_ontop = !vo_ontop;
 597     if (!vo_fs) {
 598         createRenderingContext();
 599     }
 600 }
 601
 602 /**
 603  * \brief Uninitialize w32_common framework.
 604  *
 605  * Should be called last in video driver's uninit function. First release
 606  * anything built on top of the created window e.g. rendering context inside
 607  * and call vo_w32_uninit at the end.
 608  */
 609 void vo_w32_uninit(void) {
 610     mp_msg(MSGT_VO, MSGL_V, "vo: win32: uninit\n");
 611     resetMode();
 612     ShowCursor(1);
 613     depthonscreen = 0;
 614     if (dev_hdc) DeleteDC(dev_hdc);
 615     dev_hdc = 0;
 616     DestroyWindow(vo_window);
 617     vo_window = 0;
 618     UnregisterClass(classname, 0);
 619 }
 620
 621 /**
 622  * \brief get a device context to draw in
 623  *
 624  * \param wnd window the DC should belong to if it makes sense
 625  */
 626 HDC vo_w32_get_dc(HWND wnd) {
 627     if (dev_hdc) return dev_hdc;
 628     return GetDC(wnd);
 629 }
 630
 631 /**
 632  * \brief release a device context
 633  *
 634  * \param wnd window the DC probably belongs to
 635  */
 636 void vo_w32_release_dc(HWND wnd, HDC dc) {
 637     if (dev_hdc) return;
 638     ReleaseDC(wnd, dc);
 639 }