libvo/w32_common.c

   1 #include <stdio.h>
   2 #include <limits.h>
   3 #include <windows.h>
   4 #include <windowsx.h>
   5
   6 #include "osdep/keycodes.h"
   7 #include "input/input.h"
   8 #include "input/mouse.h"
   9 #include "mp_msg.h"
  10 #include "video_out.h"
  11 #include "aspect.h"
  12 #include "w32_common.h"
  13 #include "mp_fifo.h"
  14
  15 extern int enable_mouse_movements;
  16
  17 #ifndef MONITOR_DEFAULTTOPRIMARY
  18 #define MONITOR_DEFAULTTOPRIMARY 1
  19 #endif
  20
  21 static const char classname[] = "MPlayer - Media player for Win32";
  22 int vo_vm = 0;
  23
  24 // last non-fullscreen extends
  25 static int prev_width;
  26 static int prev_height;
  27 static int prev_x;
  28 static int prev_y;
  29
  30 static uint32_t o_dwidth;
  31 static uint32_t o_dheight;
  32
  33 static HINSTANCE hInstance;
  34 #define vo_window vo_w32_window
  35 HWND vo_window = 0;
  36 static int event_flags;
  37 static int mon_cnt;
  38
  39 static HMONITOR (WINAPI* myMonitorFromWindow)(HWND, DWORD);
  40 static BOOL (WINAPI* myGetMonitorInfo)(HMONITOR, LPMONITORINFO);
  41 static BOOL (WINAPI* myEnumDisplayMonitors)(HDC, LPCRECT, MONITORENUMPROC, LPARAM);
  42
  43 static const struct keymap vk_map[] = {
  44     // special keys
  45     {VK_ESCAPE, KEY_ESC}, {VK_BACK, KEY_BS}, {VK_TAB, KEY_TAB}, {VK_CONTROL, KEY_CTRL},
  46
  47     // cursor keys
  48     {VK_LEFT, KEY_LEFT}, {VK_UP, KEY_UP}, {VK_RIGHT, KEY_RIGHT}, {VK_DOWN, KEY_DOWN},
  49
  50     // navigation block
  51     {VK_INSERT, KEY_INSERT}, {VK_DELETE, KEY_DELETE}, {VK_HOME, KEY_HOME}, {VK_END, KEY_END},
  52     {VK_PRIOR, KEY_PAGE_UP}, {VK_NEXT, KEY_PAGE_DOWN},
  53
  54     {0, 0}
  55 };
  56
  57 static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
  58     RECT r;
  59     POINT p;
  60     int mpkey;
  61     switch (message) {
  62         case WM_ERASEBKGND: // no need to erase background seperately
  63             return 1;
  64         case WM_PAINT:
  65             event_flags |= VO_EVENT_EXPOSE;
  66             break;
  67         case WM_MOVE:
  68             p.x = 0;
  69             p.y = 0;
  70             ClientToScreen(vo_window, &p);
  71             vo_dx = p.x;
  72             vo_dy = p.y;
  73             break;
  74         case WM_SIZE:
  75             event_flags |= VO_EVENT_RESIZE;
  76             GetClientRect(vo_window, &r);
  77             vo_dwidth = r.right;
  78             vo_dheight = r.bottom;
  79             break;
  80         case WM_WINDOWPOSCHANGING:
  81             if (vo_keepaspect && !vo_fs) {
  82               WINDOWPOS *wpos = lParam;
  83               int xborder, yborder;
  84               RECT r2;
  85               GetClientRect(vo_window, &r);
  86               GetWindowRect(vo_window, &r2);
  87               xborder = (r2.right - r2.left) - (r.right - r.left);
  88               yborder = (r2.bottom - r2.top) - (r.bottom - r.top);
  89               wpos->cx -= xborder; wpos->cy -= yborder;
  90               aspect_fit(&wpos->cx, &wpos->cy, wpos->cx, wpos->cy);
  91               wpos->cx += xborder; wpos->cy += yborder;
  92             }
  93             return 0;
  94         case WM_CLOSE:
  95             mplayer_put_key(KEY_CLOSE_WIN);
  96             break;
  97         case WM_SYSCOMMAND:
  98             switch (wParam) {
  99                 case SC_SCREENSAVE:
 100                 case SC_MONITORPOWER:
 101                     mp_msg(MSGT_VO, MSGL_V, "vo: win32: killing screensaver\n");
 102                     return 0;
 103             }
 104             break;
 105         case WM_KEYDOWN:
 106             mpkey = lookup_keymap_table(vk_map, wParam);
 107             if (mpkey)
 108                 mplayer_put_key(mpkey);
 109             break;
 110         case WM_CHAR:
 111             mplayer_put_key(wParam);
 112             break;
 113         case WM_LBUTTONDOWN:
 114             if (!vo_nomouse_input && (vo_fs || (wParam & MK_CONTROL))) {
 115                 mplayer_put_key(MOUSE_BTN0);
 116                 break;
 117             }
 118             if (!vo_fs) {
 119                 ReleaseCapture();
 120                 SendMessage(hWnd, WM_NCLBUTTONDOWN, HTCAPTION, 0);
 121                 return 0;
 122             }
 123             break;
 124         case WM_MBUTTONDOWN:
 125             if (!vo_nomouse_input)
 126                 mplayer_put_key(MOUSE_BTN1);
 127             break;
 128         case WM_RBUTTONDOWN:
 129             if (!vo_nomouse_input)
 130                 mplayer_put_key(MOUSE_BTN2);
 131             break;
 132         case WM_MOUSEMOVE:
 133             if (enable_mouse_movements) {
 134                 char cmd_str[40];
 135                 snprintf(cmd_str, sizeof(cmd_str), "set_mouse_pos %i %i",
 136                         GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
 137                 mp_input_queue_cmd(mp_input_parse_cmd(cmd_str));
 138             }
 139             break;
 140         case WM_MOUSEWHEEL:
 141             if (!vo_nomouse_input) {
 142                 int x = GET_WHEEL_DELTA_WPARAM(wParam);
 143                 if (x > 0)
 144                     mplayer_put_key(MOUSE_BTN3);
 145                 else
 146                     mplayer_put_key(MOUSE_BTN4);
 147                 break;
 148             }
 149     }
 150
 151     return DefWindowProc(hWnd, message, wParam, lParam);
 152 }
 153
 154 /**
 155  * \brief Dispatch incoming window events and handle them.
 156  *
 157  * This function should be placed inside libvo's function "check_events".
 158  *
 159  * Global libvo variables changed:
 160  * vo_dwidth:  new window client area width
 161  * vo_dheight: new window client area height
 162  *
 163  * \return int with these flags possibly set, take care to handle in the right order
 164  *         if it matters in your driver:
 165  *
 166  * VO_EVENT_RESIZE = The window was resized. If necessary reinit your
 167  *                   driver render context accordingly.
 168  * VO_EVENT_EXPOSE = The window was exposed. Call e.g. flip_frame() to redraw
 169  *                   the window if the movie is paused.
 170  */
 171 int vo_w32_check_events(void) {
 172     MSG msg;
 173     event_flags = 0;
 174     while (PeekMessage(&msg, 0, 0, 0, PM_REMOVE)) {
 175         TranslateMessage(&msg);
 176         DispatchMessage(&msg);
 177     }
 178     if (WinID >= 0) {
 179         RECT r;
 180         GetClientRect(vo_window, &r);
 181         if (r.right != vo_dwidth || r.bottom != vo_dheight) {
 182             vo_dwidth = r.right; vo_dheight = r.bottom;
 183             event_flags |= VO_EVENT_RESIZE;
 184         }
 185         GetClientRect(WinID, &r);
 186         if (r.right != vo_dwidth || r.bottom != vo_dheight)
 187             MoveWindow(vo_window, 0, 0, r.right, r.bottom, FALSE);
 188     }
 189
 190     return event_flags;
 191 }
 192
 193 static BOOL CALLBACK mon_enum(HMONITOR hmon, HDC hdc, LPRECT r, LPARAM p) {
 194     // this defaults to the last screen if specified number does not exist
 195     xinerama_x = r->left;
 196     xinerama_y = r->top;
 197     vo_screenwidth = r->right - r->left;
 198     vo_screenheight = r->bottom - r->top;
 199     if (mon_cnt == xinerama_screen)
 200         return FALSE;
 201     mon_cnt++;
 202     return TRUE;
 203 }
 204
 205 /**
 206  * \brief Update screen information.
 207  *
 208  * This function should be called in libvo's "control" callback
 209  * with parameter VOCTRL_UPDATE_SCREENINFO.
 210  * Note that this also enables the new API where geometry and aspect
 211  * calculations are done in video_out.c:config_video_out
 212  *
 213  * Global libvo variables changed:
 214  * xinerama_x
 215  * xinerama_y
 216  * vo_screenwidth
 217  * vo_screenheight
 218  */
 219 void w32_update_xinerama_info(void) {
 220     xinerama_x = xinerama_y = 0;
 221     if (xinerama_screen < -1) {
 222         int tmp;
 223         xinerama_x = GetSystemMetrics(SM_XVIRTUALSCREEN);
 224         xinerama_y = GetSystemMetrics(SM_YVIRTUALSCREEN);
 225         tmp = GetSystemMetrics(SM_CXVIRTUALSCREEN);
 226         if (tmp) vo_screenwidth = tmp;
 227         tmp = GetSystemMetrics(SM_CYVIRTUALSCREEN);
 228         if (tmp) vo_screenheight = tmp;
 229     } else if (xinerama_screen == -1 && myMonitorFromWindow && myGetMonitorInfo) {
 230         MONITORINFO mi;
 231         HMONITOR m = myMonitorFromWindow(vo_window, MONITOR_DEFAULTTOPRIMARY);
 232         mi.cbSize = sizeof(mi);
 233         myGetMonitorInfo(m, &mi);
 234         xinerama_x = mi.rcMonitor.left;
 235         xinerama_y = mi.rcMonitor.top;
 236         vo_screenwidth = mi.rcMonitor.right - mi.rcMonitor.left;
 237         vo_screenheight = mi.rcMonitor.bottom - mi.rcMonitor.top;
 238     } else if (xinerama_screen > 0 && myEnumDisplayMonitors) {
 239         mon_cnt = 0;
 240         myEnumDisplayMonitors(NULL, NULL, mon_enum, 0);
 241     }
 242     aspect_save_screenres(vo_screenwidth, vo_screenheight);
 243 }
 244
 245 static void updateScreenProperties(void) {
 246     DEVMODE dm;
 247     dm.dmSize = sizeof dm;
 248     dm.dmDriverExtra = 0;
 249     dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
 250     if (!EnumDisplaySettings(0, ENUM_CURRENT_SETTINGS, &dm)) {
 251         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to enumerate display settings!\n");
 252         return;
 253     }
 254
 255     vo_screenwidth = dm.dmPelsWidth;
 256     vo_screenheight = dm.dmPelsHeight;
 257     vo_depthonscreen = dm.dmBitsPerPel;
 258     w32_update_xinerama_info();
 259 }
 260
 261 static void changeMode(void) {
 262     DEVMODE dm;
 263     dm.dmSize = sizeof dm;
 264     dm.dmDriverExtra = 0;
 265
 266     dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
 267     dm.dmBitsPerPel = vo_depthonscreen;
 268     dm.dmPelsWidth = vo_screenwidth;
 269     dm.dmPelsHeight = vo_screenheight;
 270
 271     if (vo_vm) {
 272         int bestMode = -1;
 273         int bestScore = INT_MAX;
 274         int i;
 275         for (i = 0; EnumDisplaySettings(0, i, &dm); ++i) {
 276             int score = (dm.dmPelsWidth - o_dwidth) * (dm.dmPelsHeight - o_dheight);
 277             if (dm.dmBitsPerPel != vo_depthonscreen) continue;
 278             if (dm.dmPelsWidth < o_dwidth) continue;
 279             if (dm.dmPelsHeight < o_dheight) continue;
 280
 281             if (score < bestScore) {
 282                 bestScore = score;
 283                 bestMode = i;
 284             }
 285         }
 286
 287         if (bestMode != -1)
 288             EnumDisplaySettings(0, bestMode, &dm);
 289
 290     ChangeDisplaySettings(&dm, CDS_FULLSCREEN);
 291     }
 292 }
 293
 294 static void resetMode(void) {
 295     if (vo_vm)
 296     ChangeDisplaySettings(0, 0);
 297 }
 298
 299 static int createRenderingContext(void) {
 300     HWND layer = HWND_NOTOPMOST;
 301     PIXELFORMATDESCRIPTOR pfd;
 302     HDC vo_hdc = GetDC(vo_window);
 303     RECT r;
 304     int pf;
 305   if (WinID < 0) {
 306     int style = (vo_border && !vo_fs) ?
 307                 (WS_OVERLAPPEDWINDOW | WS_SIZEBOX) : WS_POPUP;
 308
 309     if (vo_fs || vo_ontop) layer = HWND_TOPMOST;
 310     if (vo_fs) {
 311         changeMode();
 312         while (ShowCursor(0) >= 0) /**/ ;
 313     } else {
 314         resetMode();
 315         while (ShowCursor(1) < 0) /**/ ;
 316     }
 317     updateScreenProperties();
 318     ShowWindow(vo_window, SW_HIDE);
 319     SetWindowLong(vo_window, GWL_STYLE, style);
 320     if (vo_fs) {
 321         prev_width = vo_dwidth;
 322         prev_height = vo_dheight;
 323         prev_x = vo_dx;
 324         prev_y = vo_dy;
 325         vo_dwidth = vo_screenwidth;
 326         vo_dheight = vo_screenheight;
 327         vo_dx = xinerama_x;
 328         vo_dy = xinerama_y;
 329     } else {
 330         // make sure there are no "stale" resize events
 331         // that would set vo_d* to wrong values
 332         vo_w32_check_events();
 333         vo_dwidth = prev_width;
 334         vo_dheight = prev_height;
 335         vo_dx = prev_x;
 336         vo_dy = prev_y;
 337         // HACK around what probably is a windows focus bug:
 338         // when pressing 'f' on the console, then 'f' again to
 339         // return to windowed mode, any input into the video
 340         // window is lost forever.
 341         SetFocus(vo_window);
 342     }
 343     r.left = vo_dx;
 344     r.right = r.left + vo_dwidth;
 345     r.top = vo_dy;
 346     r.bottom = r.top + vo_dheight;
 347     AdjustWindowRect(&r, style, 0);
 348     SetWindowPos(vo_window, layer, r.left, r.top, r.right - r.left, r.bottom - r.top, SWP_SHOWWINDOW);
 349   }
 350
 351     memset(&pfd, 0, sizeof pfd);
 352     pfd.nSize = sizeof pfd;
 353     pfd.nVersion = 1;
 354     pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
 355     pfd.iPixelType = PFD_TYPE_RGBA;
 356     pfd.cColorBits = 24;
 357     pfd.iLayerType = PFD_MAIN_PLANE;
 358     pf = ChoosePixelFormat(vo_hdc, &pfd);
 359     if (!pf) {
 360             mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to select a valid pixel format!\n");
 361         ReleaseDC(vo_window, vo_hdc);
 362         return 0;
 363     }
 364
 365     SetPixelFormat(vo_hdc, pf, &pfd);
 366
 367     mp_msg(MSGT_VO, MSGL_V, "vo: win32: running at %dx%d with depth %d\n", vo_screenwidth, vo_screenheight, vo_depthonscreen);
 368
 369     ReleaseDC(vo_window, vo_hdc);
 370     return 1;
 371 }
 372
 373 /**
 374  * \brief Configure and show window on the screen.
 375  *
 376  * This function should be called in libvo's "config" callback.
 377  * It configures a window and shows it on the screen.
 378  *
 379  * Global libvo variables changed:
 380  * vo_fs
 381  * vo_vm
 382  *
 383  * \return 1 - Success, 0 - Failure
 384  */
 385 int vo_w32_config(uint32_t width, uint32_t height, uint32_t flags) {
 386     // store original size for videomode switching
 387     o_dwidth = width;
 388     o_dheight = height;
 389
 390     if (WinID < 0) {
 391         // the desired size is ignored in wid mode, it always matches the window size.
 392         prev_width = vo_dwidth = width;
 393         prev_height = vo_dheight = height;
 394         prev_x = vo_dx;
 395         prev_y = vo_dy;
 396     }
 397
 398     vo_fs = flags & VOFLAG_FULLSCREEN;
 399     vo_vm = flags & VOFLAG_MODESWITCHING;
 400     return createRenderingContext();
 401 }
 402
 403 /**
 404  * \brief Initialize w32_common framework.
 405  *
 406  * The first function that should be called from the w32_common framework.
 407  * It handles window creation on the screen with proper title and attributes.
 408  * It also initializes the framework's internal variables. The function should
 409  * be called after your own preinit initialization and you shouldn't do any
 410  * window management on your own.
 411  *
 412  * Global libvo variables changed:
 413  * vo_w32_window
 414  * vo_depthonscreen
 415  * vo_screenwidth
 416  * vo_screenheight
 417  *
 418  * \return 1 = Success, 0 = Failure
 419  */
 420 int vo_w32_init(void) {
 421     HICON mplayerIcon = 0;
 422     char exedir[MAX_PATH];
 423     HINSTANCE user32;
 424
 425     if (vo_window)
 426         return 1;
 427
 428     hInstance = GetModuleHandle(0);
 429
 430     if (GetModuleFileName(0, exedir, MAX_PATH))
 431         mplayerIcon = ExtractIcon(hInstance, exedir, 0);
 432     if (!mplayerIcon)
 433         mplayerIcon = LoadIcon(0, IDI_APPLICATION);
 434
 435   {
 436     WNDCLASSEX wcex = { sizeof wcex, CS_OWNDC | CS_DBLCLKS, WndProc, 0, 0, hInstance, mplayerIcon, LoadCursor(0, IDC_ARROW), NULL, 0, classname, mplayerIcon };
 437
 438     if (!RegisterClassEx(&wcex)) {
 439         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to register window class!\n");
 440         return 0;
 441     }
 442   }
 443
 444     if (WinID >= 0)
 445     {
 446         RECT r;
 447         GetClientRect(WinID, &r);
 448         vo_dwidth = r.right; vo_dheight = r.bottom;
 449         vo_window = CreateWindowEx(WS_EX_NOPARENTNOTIFY, classname, classname,
 450                      WS_CHILD | WS_VISIBLE,
 451                      0, 0, vo_dwidth, vo_dheight, WinID, 0, hInstance, 0);
 452         EnableWindow(vo_window, 0);
 453     } else
 454     vo_window = CreateWindowEx(0, classname, classname,
 455                   vo_border ? (WS_OVERLAPPEDWINDOW | WS_SIZEBOX) : WS_POPUP,
 456                   CW_USEDEFAULT, 0, 100, 100, 0, 0, hInstance, 0);
 457     if (!vo_window) {
 458         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to create window!\n");
 459         return 0;
 460     }
 461
 462     myMonitorFromWindow = NULL;
 463     myGetMonitorInfo = NULL;
 464     myEnumDisplayMonitors = NULL;
 465     user32 = GetModuleHandle("user32.dll");
 466     if (user32) {
 467         myMonitorFromWindow = (void *)GetProcAddress(user32, "MonitorFromWindow");
 468         myGetMonitorInfo = GetProcAddress(user32, "GetMonitorInfoA");
 469         myEnumDisplayMonitors = GetProcAddress(user32, "EnumDisplayMonitors");
 470     }
 471     updateScreenProperties();
 472
 473     return 1;
 474 }
 475
 476 /**
 477  * \brief Toogle fullscreen / windowed mode.
 478  *
 479  * Should be called on VOCTRL_FULLSCREEN event. The window is
 480  * always resized after this call, so the rendering context
 481  * should be reinitialized with the new dimensions.
 482  * It is unspecified if vo_check_events will create a resize
 483  * event in addition or not.
 484  *
 485  * Global libvo variables changed:
 486  * vo_dwidth
 487  * vo_dheight
 488  * vo_fs
 489  */
 490
 491 void vo_w32_fullscreen(void) {
 492     vo_fs = !vo_fs;
 493
 494     createRenderingContext();
 495 }
 496
 497 /**
 498  * \brief Toogle window border attribute.
 499  *
 500  * Should be called on VOCTRL_BORDER event.
 501  *
 502  * Global libvo variables changed:
 503  * vo_border
 504  */
 505 void vo_w32_border(void) {
 506     vo_border = !vo_border;
 507     createRenderingContext();
 508 }
 509
 510 /**
 511  * \brief Toogle window ontop attribute.
 512  *
 513  * Should be called on VOCTRL_ONTOP event.
 514  *
 515  * Global libvo variables changed:
 516  * vo_ontop
 517  */
 518 void vo_w32_ontop( void )
 519 {
 520     vo_ontop = !vo_ontop;
 521     if (!vo_fs) {
 522         createRenderingContext();
 523     }
 524 }
 525
 526 /**
 527  * \brief Uninitialize w32_common framework.
 528  *
 529  * Should be called last in video driver's uninit function. First release
 530  * anything built on top of the created window e.g. rendering context inside
 531  * and call vo_w32_uninit at the end.
 532  */
 533 void vo_w32_uninit(void) {
 534     mp_msg(MSGT_VO, MSGL_V, "vo: win32: uninit\n");
 535     resetMode();
 536     ShowCursor(1);
 537     vo_depthonscreen = 0;
 538     DestroyWindow(vo_window);
 539     vo_window = 0;
 540     UnregisterClass(classname, 0);
 541 }