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               RECT r2;
 113               GetClientRect(vo_window, &r);
 114               GetWindowRect(vo_window, &r2);
 115               xborder = (r2.right - r2.left) - (r.right - r.left);
 116               yborder = (r2.bottom - r2.top) - (r.bottom - r.top);
 117               wpos->cx -= xborder; wpos->cy -= yborder;
 118               aspect_fit(&wpos->cx, &wpos->cy, wpos->cx, wpos->cy);
 119               wpos->cx += xborder; wpos->cy += yborder;
 120             }
 121             return 0;
 122         case WM_CLOSE:
 123             mplayer_put_key(KEY_CLOSE_WIN);
 124             break;
 125         case WM_SYSCOMMAND:
 126             switch (wParam) {
 127                 case SC_SCREENSAVE:
 128                 case SC_MONITORPOWER:
 129                     mp_msg(MSGT_VO, MSGL_V, "vo: win32: killing screensaver\n");
 130                     return 0;
 131             }
 132             break;
 133         case WM_KEYDOWN:
 134             mpkey = lookup_keymap_table(vk_map, wParam);
 135             if (mpkey)
 136                 mplayer_put_key(mpkey);
 137             break;
 138         case WM_CHAR:
 139             mplayer_put_key(wParam);
 140             break;
 141         case WM_LBUTTONDOWN:
 142             if (!vo_nomouse_input && (vo_fs || (wParam & MK_CONTROL))) {
 143                 mplayer_put_key(MOUSE_BTN0);
 144                 break;
 145             }
 146             if (!vo_fs) {
 147                 ReleaseCapture();
 148                 SendMessage(hWnd, WM_NCLBUTTONDOWN, HTCAPTION, 0);
 149                 return 0;
 150             }
 151             break;
 152         case WM_MBUTTONDOWN:
 153             if (!vo_nomouse_input)
 154                 mplayer_put_key(MOUSE_BTN1);
 155             break;
 156         case WM_RBUTTONDOWN:
 157             if (!vo_nomouse_input)
 158                 mplayer_put_key(MOUSE_BTN2);
 159             break;
 160         case WM_MOUSEMOVE:
 161             if (enable_mouse_movements) {
 162                 char cmd_str[40];
 163                 snprintf(cmd_str, sizeof(cmd_str), "set_mouse_pos %i %i",
 164                         GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
 165                 mp_input_queue_cmd(mp_input_parse_cmd(cmd_str));
 166             }
 167             break;
 168         case WM_MOUSEWHEEL:
 169             if (!vo_nomouse_input) {
 170                 int x = GET_WHEEL_DELTA_WPARAM(wParam);
 171                 if (x > 0)
 172                     mplayer_put_key(MOUSE_BTN3);
 173                 else
 174                     mplayer_put_key(MOUSE_BTN4);
 175                 break;
 176             }
 177     }
 178
 179     return DefWindowProc(hWnd, message, wParam, lParam);
 180 }
 181
 182 /**
 183  * \brief Dispatch incoming window events and handle them.
 184  *
 185  * This function should be placed inside libvo's function "check_events".
 186  *
 187  * Global libvo variables changed:
 188  * vo_dwidth:  new window client area width
 189  * vo_dheight: new window client area height
 190  *
 191  * \return int with these flags possibly set, take care to handle in the right order
 192  *         if it matters in your driver:
 193  *
 194  * VO_EVENT_RESIZE = The window was resized. If necessary reinit your
 195  *                   driver render context accordingly.
 196  * VO_EVENT_EXPOSE = The window was exposed. Call e.g. flip_frame() to redraw
 197  *                   the window if the movie is paused.
 198  */
 199 int vo_w32_check_events(void) {
 200     MSG msg;
 201     event_flags = 0;
 202     while (PeekMessage(&msg, 0, 0, 0, PM_REMOVE)) {
 203         TranslateMessage(&msg);
 204         DispatchMessage(&msg);
 205     }
 206     if (WinID >= 0) {
 207         RECT r;
 208         GetClientRect(vo_window, &r);
 209         if (r.right != vo_dwidth || r.bottom != vo_dheight) {
 210             vo_dwidth = r.right; vo_dheight = r.bottom;
 211             event_flags |= VO_EVENT_RESIZE;
 212         }
 213         GetClientRect(WinID, &r);
 214         if (r.right != vo_dwidth || r.bottom != vo_dheight)
 215             MoveWindow(vo_window, 0, 0, r.right, r.bottom, FALSE);
 216     }
 217
 218     return event_flags;
 219 }
 220
 221 static BOOL CALLBACK mon_enum(HMONITOR hmon, HDC hdc, LPRECT r, LPARAM p) {
 222     // this defaults to the last screen if specified number does not exist
 223     xinerama_x = r->left;
 224     xinerama_y = r->top;
 225     vo_screenwidth = r->right - r->left;
 226     vo_screenheight = r->bottom - r->top;
 227     if (mon_cnt == xinerama_screen)
 228         return FALSE;
 229     mon_cnt++;
 230     return TRUE;
 231 }
 232
 233 /**
 234  * \brief Update screen information.
 235  *
 236  * This function should be called in libvo's "control" callback
 237  * with parameter VOCTRL_UPDATE_SCREENINFO.
 238  * Note that this also enables the new API where geometry and aspect
 239  * calculations are done in video_out.c:config_video_out
 240  *
 241  * Global libvo variables changed:
 242  * xinerama_x
 243  * xinerama_y
 244  * vo_screenwidth
 245  * vo_screenheight
 246  */
 247 void w32_update_xinerama_info(void) {
 248     xinerama_x = xinerama_y = 0;
 249     if (xinerama_screen < -1) {
 250         int tmp;
 251         xinerama_x = GetSystemMetrics(SM_XVIRTUALSCREEN);
 252         xinerama_y = GetSystemMetrics(SM_YVIRTUALSCREEN);
 253         tmp = GetSystemMetrics(SM_CXVIRTUALSCREEN);
 254         if (tmp) vo_screenwidth = tmp;
 255         tmp = GetSystemMetrics(SM_CYVIRTUALSCREEN);
 256         if (tmp) vo_screenheight = tmp;
 257     } else if (xinerama_screen == -1 && myMonitorFromWindow && myGetMonitorInfo) {
 258         MONITORINFO mi;
 259         HMONITOR m = myMonitorFromWindow(vo_window, MONITOR_DEFAULTTOPRIMARY);
 260         mi.cbSize = sizeof(mi);
 261         myGetMonitorInfo(m, &mi);
 262         xinerama_x = mi.rcMonitor.left;
 263         xinerama_y = mi.rcMonitor.top;
 264         vo_screenwidth = mi.rcMonitor.right - mi.rcMonitor.left;
 265         vo_screenheight = mi.rcMonitor.bottom - mi.rcMonitor.top;
 266     } else if (xinerama_screen > 0 && myEnumDisplayMonitors) {
 267         mon_cnt = 0;
 268         myEnumDisplayMonitors(NULL, NULL, mon_enum, 0);
 269     }
 270     aspect_save_screenres(vo_screenwidth, vo_screenheight);
 271 }
 272
 273 static void updateScreenProperties(void) {
 274     DEVMODE dm;
 275     dm.dmSize = sizeof dm;
 276     dm.dmDriverExtra = 0;
 277     dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
 278     if (!EnumDisplaySettings(0, ENUM_CURRENT_SETTINGS, &dm)) {
 279         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to enumerate display settings!\n");
 280         return;
 281     }
 282
 283     vo_screenwidth = dm.dmPelsWidth;
 284     vo_screenheight = dm.dmPelsHeight;
 285     vo_depthonscreen = dm.dmBitsPerPel;
 286     w32_update_xinerama_info();
 287 }
 288
 289 static void changeMode(void) {
 290     DEVMODE dm;
 291     dm.dmSize = sizeof dm;
 292     dm.dmDriverExtra = 0;
 293
 294     dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
 295     dm.dmBitsPerPel = vo_depthonscreen;
 296     dm.dmPelsWidth = vo_screenwidth;
 297     dm.dmPelsHeight = vo_screenheight;
 298
 299     if (vo_vm) {
 300         int bestMode = -1;
 301         int bestScore = INT_MAX;
 302         int i;
 303         for (i = 0; EnumDisplaySettings(0, i, &dm); ++i) {
 304             int score = (dm.dmPelsWidth - o_dwidth) * (dm.dmPelsHeight - o_dheight);
 305             if (dm.dmBitsPerPel != vo_depthonscreen) continue;
 306             if (dm.dmPelsWidth < o_dwidth) continue;
 307             if (dm.dmPelsHeight < o_dheight) continue;
 308
 309             if (score < bestScore) {
 310                 bestScore = score;
 311                 bestMode = i;
 312             }
 313         }
 314
 315         if (bestMode != -1)
 316             EnumDisplaySettings(0, bestMode, &dm);
 317
 318     ChangeDisplaySettings(&dm, CDS_FULLSCREEN);
 319     }
 320 }
 321
 322 static void resetMode(void) {
 323     if (vo_vm)
 324     ChangeDisplaySettings(0, 0);
 325 }
 326
 327 static int createRenderingContext(void) {
 328     HWND layer = HWND_NOTOPMOST;
 329     PIXELFORMATDESCRIPTOR pfd;
 330     HDC vo_hdc = GetDC(vo_window);
 331     RECT r;
 332     int pf;
 333   if (WinID < 0) {
 334     int style = (vo_border && !vo_fs) ?
 335                 (WS_OVERLAPPEDWINDOW | WS_SIZEBOX) : WS_POPUP;
 336
 337     if (vo_fs || vo_ontop) layer = HWND_TOPMOST;
 338     if (vo_fs) {
 339         changeMode();
 340         while (ShowCursor(0) >= 0) /**/ ;
 341     } else {
 342         resetMode();
 343         while (ShowCursor(1) < 0) /**/ ;
 344     }
 345     updateScreenProperties();
 346     ShowWindow(vo_window, SW_HIDE);
 347     SetWindowLong(vo_window, GWL_STYLE, style);
 348     if (vo_fs) {
 349         prev_width = vo_dwidth;
 350         prev_height = vo_dheight;
 351         prev_x = vo_dx;
 352         prev_y = vo_dy;
 353         vo_dwidth = vo_screenwidth;
 354         vo_dheight = vo_screenheight;
 355         vo_dx = xinerama_x;
 356         vo_dy = xinerama_y;
 357     } else {
 358         // make sure there are no "stale" resize events
 359         // that would set vo_d* to wrong values
 360         vo_w32_check_events();
 361         vo_dwidth = prev_width;
 362         vo_dheight = prev_height;
 363         vo_dx = prev_x;
 364         vo_dy = prev_y;
 365         // HACK around what probably is a windows focus bug:
 366         // when pressing 'f' on the console, then 'f' again to
 367         // return to windowed mode, any input into the video
 368         // window is lost forever.
 369         SetFocus(vo_window);
 370     }
 371     r.left = vo_dx;
 372     r.right = r.left + vo_dwidth;
 373     r.top = vo_dy;
 374     r.bottom = r.top + vo_dheight;
 375     AdjustWindowRect(&r, style, 0);
 376     SetWindowPos(vo_window, layer, r.left, r.top, r.right - r.left, r.bottom - r.top, SWP_SHOWWINDOW);
 377   }
 378
 379     memset(&pfd, 0, sizeof pfd);
 380     pfd.nSize = sizeof pfd;
 381     pfd.nVersion = 1;
 382     pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
 383     pfd.iPixelType = PFD_TYPE_RGBA;
 384     pfd.cColorBits = 24;
 385     pfd.iLayerType = PFD_MAIN_PLANE;
 386     pf = ChoosePixelFormat(vo_hdc, &pfd);
 387     if (!pf) {
 388             mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to select a valid pixel format!\n");
 389         ReleaseDC(vo_window, vo_hdc);
 390         return 0;
 391     }
 392
 393     SetPixelFormat(vo_hdc, pf, &pfd);
 394
 395     mp_msg(MSGT_VO, MSGL_V, "vo: win32: running at %dx%d with depth %d\n", vo_screenwidth, vo_screenheight, vo_depthonscreen);
 396
 397     ReleaseDC(vo_window, vo_hdc);
 398     return 1;
 399 }
 400
 401 /**
 402  * \brief Configure and show window on the screen.
 403  *
 404  * This function should be called in libvo's "config" callback.
 405  * It configures a window and shows it on the screen.
 406  *
 407  * Global libvo variables changed:
 408  * vo_fs
 409  * vo_vm
 410  *
 411  * \return 1 - Success, 0 - Failure
 412  */
 413 int vo_w32_config(uint32_t width, uint32_t height, uint32_t flags) {
 414     // store original size for videomode switching
 415     o_dwidth = width;
 416     o_dheight = height;
 417
 418     if (WinID < 0) {
 419         // the desired size is ignored in wid mode, it always matches the window size.
 420         prev_width = vo_dwidth = width;
 421         prev_height = vo_dheight = height;
 422         prev_x = vo_dx;
 423         prev_y = vo_dy;
 424     }
 425
 426     vo_fs = flags & VOFLAG_FULLSCREEN;
 427     vo_vm = flags & VOFLAG_MODESWITCHING;
 428     return createRenderingContext();
 429 }
 430
 431 /**
 432  * \brief Initialize w32_common framework.
 433  *
 434  * The first function that should be called from the w32_common framework.
 435  * It handles window creation on the screen with proper title and attributes.
 436  * It also initializes the framework's internal variables. The function should
 437  * be called after your own preinit initialization and you shouldn't do any
 438  * window management on your own.
 439  *
 440  * Global libvo variables changed:
 441  * vo_w32_window
 442  * vo_depthonscreen
 443  * vo_screenwidth
 444  * vo_screenheight
 445  *
 446  * \return 1 = Success, 0 = Failure
 447  */
 448 int vo_w32_init(void) {
 449     HICON mplayerIcon = 0;
 450     char exedir[MAX_PATH];
 451     HINSTANCE user32;
 452
 453     if (vo_window)
 454         return 1;
 455
 456     hInstance = GetModuleHandle(0);
 457
 458     if (GetModuleFileName(0, exedir, MAX_PATH))
 459         mplayerIcon = ExtractIcon(hInstance, exedir, 0);
 460     if (!mplayerIcon)
 461         mplayerIcon = LoadIcon(0, IDI_APPLICATION);
 462
 463   {
 464     WNDCLASSEX wcex = { sizeof wcex, CS_OWNDC | CS_DBLCLKS, WndProc, 0, 0, hInstance, mplayerIcon, LoadCursor(0, IDC_ARROW), NULL, 0, classname, mplayerIcon };
 465
 466     if (!RegisterClassEx(&wcex)) {
 467         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to register window class!\n");
 468         return 0;
 469     }
 470   }
 471
 472     if (WinID >= 0)
 473     {
 474         RECT r;
 475         GetClientRect(WinID, &r);
 476         vo_dwidth = r.right; vo_dheight = r.bottom;
 477         vo_window = CreateWindowEx(WS_EX_NOPARENTNOTIFY, classname, classname,
 478                      WS_CHILD | WS_VISIBLE,
 479                      0, 0, vo_dwidth, vo_dheight, WinID, 0, hInstance, 0);
 480         EnableWindow(vo_window, 0);
 481     } else
 482     vo_window = CreateWindowEx(0, classname, classname,
 483                   vo_border ? (WS_OVERLAPPEDWINDOW | WS_SIZEBOX) : WS_POPUP,
 484                   CW_USEDEFAULT, 0, 100, 100, 0, 0, hInstance, 0);
 485     if (!vo_window) {
 486         mp_msg(MSGT_VO, MSGL_ERR, "vo: win32: unable to create window!\n");
 487         return 0;
 488     }
 489
 490     myMonitorFromWindow = NULL;
 491     myGetMonitorInfo = NULL;
 492     myEnumDisplayMonitors = NULL;
 493     user32 = GetModuleHandle("user32.dll");
 494     if (user32) {
 495         myMonitorFromWindow = (void *)GetProcAddress(user32, "MonitorFromWindow");
 496         myGetMonitorInfo = GetProcAddress(user32, "GetMonitorInfoA");
 497         myEnumDisplayMonitors = GetProcAddress(user32, "EnumDisplayMonitors");
 498     }
 499     updateScreenProperties();
 500
 501     return 1;
 502 }
 503
 504 /**
 505  * \brief Toogle fullscreen / windowed mode.
 506  *
 507  * Should be called on VOCTRL_FULLSCREEN event. The window is
 508  * always resized after this call, so the rendering context
 509  * should be reinitialized with the new dimensions.
 510  * It is unspecified if vo_check_events will create a resize
 511  * event in addition or not.
 512  *
 513  * Global libvo variables changed:
 514  * vo_dwidth
 515  * vo_dheight
 516  * vo_fs
 517  */
 518
 519 void vo_w32_fullscreen(void) {
 520     vo_fs = !vo_fs;
 521
 522     createRenderingContext();
 523 }
 524
 525 /**
 526  * \brief Toogle window border attribute.
 527  *
 528  * Should be called on VOCTRL_BORDER event.
 529  *
 530  * Global libvo variables changed:
 531  * vo_border
 532  */
 533 void vo_w32_border(void) {
 534     vo_border = !vo_border;
 535     createRenderingContext();
 536 }
 537
 538 /**
 539  * \brief Toogle window ontop attribute.
 540  *
 541  * Should be called on VOCTRL_ONTOP event.
 542  *
 543  * Global libvo variables changed:
 544  * vo_ontop
 545  */
 546 void vo_w32_ontop( void )
 547 {
 548     vo_ontop = !vo_ontop;
 549     if (!vo_fs) {
 550         createRenderingContext();
 551     }
 552 }
 553
 554 /**
 555  * \brief Uninitialize w32_common framework.
 556  *
 557  * Should be called last in video driver's uninit function. First release
 558  * anything built on top of the created window e.g. rendering context inside
 559  * and call vo_w32_uninit at the end.
 560  */
 561 void vo_w32_uninit(void) {
 562     mp_msg(MSGT_VO, MSGL_V, "vo: win32: uninit\n");
 563     resetMode();
 564     ShowCursor(1);
 565     vo_depthonscreen = 0;
 566     DestroyWindow(vo_window);
 567     vo_window = 0;
 568     UnregisterClass(classname, 0);
 569 }