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 #include "osdep/keycodes.h"
  25 #include "input/input.h"
  26 #include "input/mouse.h"
  27 #include "mp_msg.h"
  28 #include "video_out.h"
  29 #include "aspect.h"
  30 #include "w32_common.h"
  31 #include "mp_fifo.h"
  32
  33 extern int enable_mouse_movements;
  34
  35 #ifndef MONITOR_DEFAULTTOPRIMARY
  36 #define MONITOR_DEFAULTTOPRIMARY 1
  37 #endif
  38
  39 static const char classname[] = "MPlayer - Media player for Win32";
  40 int vo_vm = 0;
  41
  42 // last non-fullscreen extends
  43 static int prev_width;
  44 static int prev_height;
  45 static int prev_x;
  46 static int prev_y;
  47
  48 static uint32_t o_dwidth;
  49 static uint32_t o_dheight;
  50
  51 static HINSTANCE hInstance;
  52 #define vo_window vo_w32_window
  53 HWND vo_window = 0;
  54 static int event_flags;
  55 static int mon_cnt;
  56
  57 static HMONITOR (WINAPI* myMonitorFromWindow)(HWND, DWORD);
  58 static BOOL (WINAPI* myGetMonitorInfo)(HMONITOR, LPMONITORINFO);
  59 static BOOL (WINAPI* myEnumDisplayMonitors)(HDC, LPCRECT, MONITORENUMPROC, LPARAM);
  60
  61 static const struct keymap vk_map[] = {
  62     // special keys
  63     {VK_ESCAPE, KEY_ESC}, {VK_BACK, KEY_BS}, {VK_TAB, KEY_TAB}, {VK_CONTROL, KEY_CTRL},
  64
  65     // cursor keys
  66     {VK_LEFT, KEY_LEFT}, {VK_UP, KEY_UP}, {VK_RIGHT, KEY_RIGHT}, {VK_DOWN, KEY_DOWN},
  67
  68     // navigation block
  69     {VK_INSERT, KEY_INSERT}, {VK_DELETE, KEY_DELETE}, {VK_HOME, KEY_HOME}, {VK_END, KEY_END},
  70     {VK_PRIOR, KEY_PAGE_UP}, {VK_NEXT, KEY_PAGE_DOWN},
  71
  72     // F-keys
  73     {VK_F1, KEY_F+1}, {VK_F2, KEY_F+2}, {VK_F3, KEY_F+3}, {VK_F4, KEY_F+4},
  74     {VK_F5, KEY_F+5}, {VK_F6, KEY_F+6}, {VK_F7, KEY_F+7}, {VK_F8, KEY_F+8},
  75     {VK_F9, KEY_F+9}, {VK_F10, KEY_F+10}, {VK_F11, KEY_F+11}, {VK_F1, KEY_F+12},
  76     // numpad
  77     {VK_NUMPAD0, KEY_KP0}, {VK_NUMPAD1, KEY_KP1}, {VK_NUMPAD2, KEY_KP2},
  78     {VK_NUMPAD3, KEY_KP3}, {VK_NUMPAD4, KEY_KP4}, {VK_NUMPAD5, KEY_KP5},
  79     {VK_NUMPAD6, KEY_KP6}, {VK_NUMPAD7, KEY_KP7}, {VK_NUMPAD8, KEY_KP8},
  80     {VK_NUMPAD9, KEY_KP9}, {VK_DECIMAL, KEY_KPDEC},
  81
  82     {0, 0}
  83 };
  84
  85 static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
  86     RECT r;
  87     POINT p;
  88     int mpkey;
  89     switch (message) {
  90         case WM_ERASEBKGND: // no need to erase background seperately
  91             return 1;
  92         case WM_PAINT:
  93             event_flags |= VO_EVENT_EXPOSE;
  94             break;
  95         case WM_MOVE:
  96             p.x = 0;
  97             p.y = 0;
  98             ClientToScreen(vo_window, &p);
  99             vo_dx = p.x;
 100             vo_dy = p.y;
 101             break;
 102         case WM_SIZE:
 103             event_flags |= VO_EVENT_RESIZE;
 104             GetClientRect(vo_window, &r);
 105             vo_dwidth = r.right;
 106             vo_dheight = r.bottom;
 107             break;
 108         case WM_WINDOWPOSCHANGING:
 109             if (vo_keepaspect && !vo_fs) {
 110               WINDOWPOS *wpos = lParam;
 111               int xborder, yborder;
 112               r.left = r.top = 0;
 113               r.right = wpos->cx;
 114               r.bottom = wpos->cy;
 115               AdjustWindowRect(&r, GetWindowLong(vo_window, GWL_STYLE), 0);
 116               xborder = (r.right - r.left) - wpos->cx;
 117               yborder = (r.bottom - r.top) - wpos->cy;
 118               wpos->cx -= xborder; wpos->cy -= yborder;
 119               aspect_fit(&wpos->cx, &wpos->cy, wpos->cx, wpos->cy);
 120               wpos->cx += xborder; wpos->cy += yborder;
 121             }
 122             return 0;
 123         case WM_CLOSE:
 124             mplayer_put_key(KEY_CLOSE_WIN);
 125             break;
 126         case WM_SYSCOMMAND:
 127             switch (wParam) {
 128                 case SC_SCREENSAVE:
 129                 case SC_MONITORPOWER:
 130                     mp_msg(MSGT_VO, MSGL_V, "vo: win32: killing screensaver\n");
 131                     return 0;
 132             }
 133             break;
 134         case WM_KEYDOWN:
 135             mpkey = lookup_keymap_table(vk_map, wParam);
 136             if (mpkey)
 137                 mplayer_put_key(mpkey);
 138             break;
 139         case WM_CHAR:
 140             mplayer_put_key(wParam);
 141             break;
 142         case WM_LBUTTONDOWN:
 143             if (!vo_nomouse_input && (vo_fs || (wParam & MK_CONTROL))) {
 144                 mplayer_put_key(MOUSE_BTN0);
 145                 break;
 146             }
 147             if (!vo_fs) {
 148                 ReleaseCapture();
 149                 SendMessage(hWnd, WM_NCLBUTTONDOWN, HTCAPTION, 0);
 150                 return 0;
 151             }
 152             break;
 153         case WM_MBUTTONDOWN:
 154             if (!vo_nomouse_input)
 155                 mplayer_put_key(MOUSE_BTN1);
 156             break;
 157         case WM_RBUTTONDOWN:
 158             if (!vo_nomouse_input)
 159                 mplayer_put_key(MOUSE_BTN2);
 160             break;
 161         case WM_MOUSEMOVE:
 162             if (enable_mouse_movements) {
 163                 char cmd_str[40];
 164                 snprintf(cmd_str, sizeof(cmd_str), "set_mouse_pos %i %i",
 165                         GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
 166                 mp_input_queue_cmd(mp_input_parse_cmd(cmd_str));
 167             }
 168             break;
 169         case WM_MOUSEWHEEL:
 170             if (!vo_nomouse_input) {
 171                 int x = GET_WHEEL_DELTA_WPARAM(wParam);
 172                 if (x > 0)
 173                     mplayer_put_key(MOUSE_BTN3);
 174                 else
 175                     mplayer_put_key(MOUSE_BTN4);
 176                 break;
 177             }
 178     }
 179
 180     return DefWindowProc(hWnd, message, wParam, lParam);
 181 }
 182
 183 /**
 184  * \brief Dispatch incoming window events and handle them.
 185  *
 186  * This function should be placed inside libvo's function "check_events".
 187  *
 188  * Global libvo variables changed:
 189  * vo_dwidth:  new window client area width
 190  * vo_dheight: new window client area height
 191  *
 192  * \return int with these flags possibly set, take care to handle in the right order
 193  *         if it matters in your driver:
 194  *
 195  * VO_EVENT_RESIZE = The window was resized. If necessary reinit your
 196  *                   driver render context accordingly.
 197  * VO_EVENT_EXPOSE = The window was exposed. Call e.g. flip_frame() to redraw
 198  *                   the window if the movie is paused.
 199  */
 200 int vo_w32_check_events(void) {
 201     MSG msg;
 202     event_flags = 0;
 203     while (PeekMessage(&msg, 0, 0, 0, PM_REMOVE)) {
 204         TranslateMessage(&msg);
 205         DispatchMessage(&msg);
 206     }
 207     if (WinID >= 0) {
 208         RECT r;
 209         GetClientRect(vo_window, &r);
 210         if (r.right != vo_dwidth || r.bottom != vo_dheight) {
 211             vo_dwidth = r.right; vo_dheight = r.bottom;
 212             event_flags |= VO_EVENT_RESIZE;
 213         }
 214         GetClientRect(WinID, &r);
 215         if (r.right != vo_dwidth || r.bottom != vo_dheight)
 216             MoveWindow(vo_window, 0, 0, r.right, r.bottom, FALSE);
 217     }
 218
 219     return event_flags;
 220 }
 221
 222 static BOOL CALLBACK mon_enum(HMONITOR hmon, HDC hdc, LPRECT r, LPARAM p) {
 223     // this defaults to the last screen if specified number does not exist
 224     xinerama_x = r->left;
 225     xinerama_y = r->top;
 226     vo_screenwidth = r->right - r->left;
 227     vo_screenheight = r->bottom - r->top;
 228     if (mon_cnt == xinerama_screen)
 229         return FALSE;
 230     mon_cnt++;
 231     return TRUE;
 232 }
 233
 234 /**
 235  * \brief Update screen information.
 236  *
 237  * This function should be called in libvo's "control" callback
 238  * with parameter VOCTRL_UPDATE_SCREENINFO.
 239  * Note that this also enables the new API where geometry and aspect
 240  * calculations are done in video_out.c:config_video_out
 241  *
 242  * Global libvo variables changed:
 243  * xinerama_x
 244  * xinerama_y
 245  * vo_screenwidth
 246  * vo_screenheight
 247  */
 248 void w32_update_xinerama_info(void) {
 249     xinerama_x = xinerama_y = 0;
 250     if (xinerama_screen < -1) {
 251         int tmp;
 252         xinerama_x = GetSystemMetrics(SM_XVIRTUALSCREEN);
 253         xinerama_y = GetSystemMetrics(SM_YVIRTUALSCREEN);
 254         tmp = GetSystemMetrics(SM_CXVIRTUALSCREEN);
 255         if (tmp) vo_screenwidth = tmp;
 256         tmp = GetSystemMetrics(SM_CYVIRTUALSCREEN);
 257         if (tmp) vo_screenheight = tmp;
 258     } else if (xinerama_screen == -1 && myMonitorFromWindow && myGetMonitorInfo) {
 259         MONITORINFO mi;
 260         HMONITOR m = myMonitorFromWindow(vo_window, MONITOR_DEFAULTTOPRIMARY);
 261         mi.cbSize = sizeof(mi);
 262         myGetMonitorInfo(m, &mi);
 263         xinerama_x = mi.rcMonitor.left;
 264         xinerama_y = mi.rcMonitor.top;
 265         vo_screenwidth = mi.rcMonitor.right - mi.rcMonitor.left;
 266         vo_screenheight = mi.rcMonitor.bottom - mi.rcMonitor.top;
 267     } else if (xinerama_screen > 0 && myEnumDisplayMonitors) {
 268         mon_cnt = 0;
 269         myEnumDisplayMonitors(NULL, NULL, mon_enum, 0);
 270     }
 271     aspect_save_screenres(vo_screenwidth, vo_screenheight);
 272 }
 273
 274 static void updateScreenProperties(void) {
 275     DEVMODE dm;
 276     dm.dmSize = sizeof dm;
 277     dm.dmDriverExtra = 0;
 278     dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
 279     if (!EnumDisplaySettings(0, ENUM_CURRENT_SETTINGS, &dm)) {
 280         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to enumerate display settings!\n");
 281         return;
 282     }
 283
 284     vo_screenwidth = dm.dmPelsWidth;
 285     vo_screenheight = dm.dmPelsHeight;
 286     vo_depthonscreen = dm.dmBitsPerPel;
 287     w32_update_xinerama_info();
 288 }
 289
 290 static void changeMode(void) {
 291     DEVMODE dm;
 292     dm.dmSize = sizeof dm;
 293     dm.dmDriverExtra = 0;
 294
 295     dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
 296     dm.dmBitsPerPel = vo_depthonscreen;
 297     dm.dmPelsWidth = vo_screenwidth;
 298     dm.dmPelsHeight = vo_screenheight;
 299
 300     if (vo_vm) {
 301         int bestMode = -1;
 302         int bestScore = INT_MAX;
 303         int i;
 304         for (i = 0; EnumDisplaySettings(0, i, &dm); ++i) {
 305             int score = (dm.dmPelsWidth - o_dwidth) * (dm.dmPelsHeight - o_dheight);
 306             if (dm.dmBitsPerPel != vo_depthonscreen) continue;
 307             if (dm.dmPelsWidth < o_dwidth) continue;
 308             if (dm.dmPelsHeight < o_dheight) continue;
 309
 310             if (score < bestScore) {
 311                 bestScore = score;
 312                 bestMode = i;
 313             }
 314         }
 315
 316         if (bestMode != -1)
 317             EnumDisplaySettings(0, bestMode, &dm);
 318
 319     ChangeDisplaySettings(&dm, CDS_FULLSCREEN);
 320     }
 321 }
 322
 323 static void resetMode(void) {
 324     if (vo_vm)
 325     ChangeDisplaySettings(0, 0);
 326 }
 327
 328 static int createRenderingContext(void) {
 329     HWND layer = HWND_NOTOPMOST;
 330     PIXELFORMATDESCRIPTOR pfd;
 331     HDC vo_hdc = GetDC(vo_window);
 332     RECT r;
 333     int pf;
 334   if (WinID < 0) {
 335     int style = (vo_border && !vo_fs) ?
 336                 (WS_OVERLAPPEDWINDOW | WS_SIZEBOX) : WS_POPUP;
 337
 338     if (vo_fs || vo_ontop) layer = HWND_TOPMOST;
 339     if (vo_fs) {
 340         changeMode();
 341         while (ShowCursor(0) >= 0) /**/ ;
 342     } else {
 343         resetMode();
 344         while (ShowCursor(1) < 0) /**/ ;
 345     }
 346     updateScreenProperties();
 347     ShowWindow(vo_window, SW_HIDE);
 348     SetWindowLong(vo_window, GWL_STYLE, style);
 349     if (vo_fs) {
 350         prev_width = vo_dwidth;
 351         prev_height = vo_dheight;
 352         prev_x = vo_dx;
 353         prev_y = vo_dy;
 354         vo_dwidth = vo_screenwidth;
 355         vo_dheight = vo_screenheight;
 356         vo_dx = xinerama_x;
 357         vo_dy = xinerama_y;
 358     } else {
 359         // make sure there are no "stale" resize events
 360         // that would set vo_d* to wrong values
 361         vo_w32_check_events();
 362         vo_dwidth = prev_width;
 363         vo_dheight = prev_height;
 364         vo_dx = prev_x;
 365         vo_dy = prev_y;
 366         // HACK around what probably is a windows focus bug:
 367         // when pressing 'f' on the console, then 'f' again to
 368         // return to windowed mode, any input into the video
 369         // window is lost forever.
 370         SetFocus(vo_window);
 371     }
 372     r.left = vo_dx;
 373     r.right = r.left + vo_dwidth;
 374     r.top = vo_dy;
 375     r.bottom = r.top + vo_dheight;
 376     AdjustWindowRect(&r, style, 0);
 377     SetWindowPos(vo_window, layer, r.left, r.top, r.right - r.left, r.bottom - r.top, SWP_SHOWWINDOW);
 378   }
 379
 380     memset(&pfd, 0, sizeof pfd);
 381     pfd.nSize = sizeof pfd;
 382     pfd.nVersion = 1;
 383     pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
 384     pfd.iPixelType = PFD_TYPE_RGBA;
 385     pfd.cColorBits = 24;
 386     pfd.iLayerType = PFD_MAIN_PLANE;
 387     pf = ChoosePixelFormat(vo_hdc, &pfd);
 388     if (!pf) {
 389             mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to select a valid pixel format!\n");
 390         ReleaseDC(vo_window, vo_hdc);
 391         return 0;
 392     }
 393
 394     SetPixelFormat(vo_hdc, pf, &pfd);
 395
 396     mp_msg(MSGT_VO, MSGL_V, "vo: win32: running at %dx%d with depth %d\n", vo_screenwidth, vo_screenheight, vo_depthonscreen);
 397
 398     ReleaseDC(vo_window, vo_hdc);
 399     return 1;
 400 }
 401
 402 /**
 403  * \brief Configure and show window on the screen.
 404  *
 405  * This function should be called in libvo's "config" callback.
 406  * It configures a window and shows it on the screen.
 407  *
 408  * Global libvo variables changed:
 409  * vo_fs
 410  * vo_vm
 411  *
 412  * \return 1 - Success, 0 - Failure
 413  */
 414 int vo_w32_config(uint32_t width, uint32_t height, uint32_t flags) {
 415     // store original size for videomode switching
 416     o_dwidth = width;
 417     o_dheight = height;
 418
 419     if (WinID < 0) {
 420         // the desired size is ignored in wid mode, it always matches the window size.
 421         prev_width = vo_dwidth = width;
 422         prev_height = vo_dheight = height;
 423         prev_x = vo_dx;
 424         prev_y = vo_dy;
 425     }
 426
 427     vo_fs = flags & VOFLAG_FULLSCREEN;
 428     vo_vm = flags & VOFLAG_MODESWITCHING;
 429     return createRenderingContext();
 430 }
 431
 432 /**
 433  * \brief Initialize w32_common framework.
 434  *
 435  * The first function that should be called from the w32_common framework.
 436  * It handles window creation on the screen with proper title and attributes.
 437  * It also initializes the framework's internal variables. The function should
 438  * be called after your own preinit initialization and you shouldn't do any
 439  * window management on your own.
 440  *
 441  * Global libvo variables changed:
 442  * vo_w32_window
 443  * vo_depthonscreen
 444  * vo_screenwidth
 445  * vo_screenheight
 446  *
 447  * \return 1 = Success, 0 = Failure
 448  */
 449 int vo_w32_init(void) {
 450     HICON mplayerIcon = 0;
 451     char exedir[MAX_PATH];
 452     HINSTANCE user32;
 453
 454     if (vo_window)
 455         return 1;
 456
 457     hInstance = GetModuleHandle(0);
 458
 459     if (GetModuleFileName(0, exedir, MAX_PATH))
 460         mplayerIcon = ExtractIcon(hInstance, exedir, 0);
 461     if (!mplayerIcon)
 462         mplayerIcon = LoadIcon(0, IDI_APPLICATION);
 463
 464   {
 465     WNDCLASSEX wcex = { sizeof wcex, CS_OWNDC | CS_DBLCLKS, WndProc, 0, 0, hInstance, mplayerIcon, LoadCursor(0, IDC_ARROW), NULL, 0, classname, mplayerIcon };
 466
 467     if (!RegisterClassEx(&wcex)) {
 468         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to register window class!\n");
 469         return 0;
 470     }
 471   }
 472
 473     if (WinID >= 0)
 474     {
 475         RECT r;
 476         GetClientRect(WinID, &r);
 477         vo_dwidth = r.right; vo_dheight = r.bottom;
 478         vo_window = CreateWindowEx(WS_EX_NOPARENTNOTIFY, classname, classname,
 479                      WS_CHILD | WS_VISIBLE,
 480                      0, 0, vo_dwidth, vo_dheight, WinID, 0, hInstance, 0);
 481         EnableWindow(vo_window, 0);
 482     } else
 483     vo_window = CreateWindowEx(0, classname, classname,
 484                   vo_border ? (WS_OVERLAPPEDWINDOW | WS_SIZEBOX) : WS_POPUP,
 485                   CW_USEDEFAULT, 0, 100, 100, 0, 0, hInstance, 0);
 486     if (!vo_window) {
 487         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to create window!\n");
 488         return 0;
 489     }
 490
 491     myMonitorFromWindow = NULL;
 492     myGetMonitorInfo = NULL;
 493     myEnumDisplayMonitors = NULL;
 494     user32 = GetModuleHandle("user32.dll");
 495     if (user32) {
 496         myMonitorFromWindow = (void *)GetProcAddress(user32, "MonitorFromWindow");
 497         myGetMonitorInfo = GetProcAddress(user32, "GetMonitorInfoA");
 498         myEnumDisplayMonitors = GetProcAddress(user32, "EnumDisplayMonitors");
 499     }
 500     updateScreenProperties();
 501
 502     return 1;
 503 }
 504
 505 /**
 506  * \brief Toogle fullscreen / windowed mode.
 507  *
 508  * Should be called on VOCTRL_FULLSCREEN event. The window is
 509  * always resized after this call, so the rendering context
 510  * should be reinitialized with the new dimensions.
 511  * It is unspecified if vo_check_events will create a resize
 512  * event in addition or not.
 513  *
 514  * Global libvo variables changed:
 515  * vo_dwidth
 516  * vo_dheight
 517  * vo_fs
 518  */
 519
 520 void vo_w32_fullscreen(void) {
 521     vo_fs = !vo_fs;
 522
 523     createRenderingContext();
 524 }
 525
 526 /**
 527  * \brief Toogle window border attribute.
 528  *
 529  * Should be called on VOCTRL_BORDER event.
 530  *
 531  * Global libvo variables changed:
 532  * vo_border
 533  */
 534 void vo_w32_border(void) {
 535     vo_border = !vo_border;
 536     createRenderingContext();
 537 }
 538
 539 /**
 540  * \brief Toogle window ontop attribute.
 541  *
 542  * Should be called on VOCTRL_ONTOP event.
 543  *
 544  * Global libvo variables changed:
 545  * vo_ontop
 546  */
 547 void vo_w32_ontop( void )
 548 {
 549     vo_ontop = !vo_ontop;
 550     if (!vo_fs) {
 551         createRenderingContext();
 552     }
 553 }
 554
 555 /**
 556  * \brief Uninitialize w32_common framework.
 557  *
 558  * Should be called last in video driver's uninit function. First release
 559  * anything built on top of the created window e.g. rendering context inside
 560  * and call vo_w32_uninit at the end.
 561  */
 562 void vo_w32_uninit(void) {
 563     mp_msg(MSGT_VO, MSGL_V, "vo: win32: uninit\n");
 564     resetMode();
 565     ShowCursor(1);
 566     vo_depthonscreen = 0;
 567     DestroyWindow(vo_window);
 568     vo_window = 0;
 569     UnregisterClass(classname, 0);
 570 }