/* * This file is part of mpv. * * mpv is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * mpv is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with mpv. If not, see . */ #include #include #include #include #include #include #include #include #include #include "options/options.h" #include "input/keycodes.h" #include "input/input.h" #include "input/event.h" #include "common/msg.h" #include "common/common.h" #include "vo.h" #include "win_state.h" #include "w32_common.h" #include "osdep/io.h" #include "osdep/threads.h" #include "osdep/w32_keyboard.h" #include "osdep/atomics.h" #include "misc/dispatch.h" #include "misc/rendezvous.h" #include "talloc.h" static const wchar_t classname[] = L"mpv"; static __thread struct vo_w32_state *w32_thread_context; struct vo_w32_state { struct mp_log *log; struct vo *vo; struct mp_vo_opts *opts; struct input_ctx *input_ctx; pthread_t thread; bool terminate; struct mp_dispatch_queue *dispatch; // used to run stuff on the GUI thread HWND window; HWND parent; // 0 normally, set in embedding mode // Size and virtual position of the current screen. struct mp_rect screenrc; // last non-fullscreen extends (updated only on fullscreen or on initialization) int prev_width; int prev_height; int prev_x; int prev_y; // Has the window seen a WM_DESTROY? If so, don't call DestroyWindow again. bool destroyed; // whether the window position and size were intialized bool window_bounds_initialized; bool current_fs; // currently known window state int window_x; int window_y; int dw; int dh; // video size uint32_t o_dwidth; uint32_t o_dheight; bool disable_screensaver; bool cursor_visible; int event_flags; int mon_cnt; int mon_id; BOOL tracking; TRACKMOUSEEVENT trackEvent; int mouse_x; int mouse_y; // Should SetCursor be called when handling VOCTRL_SET_CURSOR_VISIBILITY? bool can_set_cursor; // UTF-16 decoding state for WM_CHAR and VK_PACKET int high_surrogate; ITaskbarList2 *taskbar_list; // updates on move/resize/displaychange double display_fps; }; typedef struct tagDropTarget { IDropTarget iface; atomic_int refCnt; DWORD lastEffect; IDataObject* dataObj; struct vo_w32_state *w32; } DropTarget; static FORMATETC fmtetc_file = { CF_HDROP, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL }; static FORMATETC fmtetc_url = { 0, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL }; static void DropTarget_Destroy(DropTarget* This) { if (This->dataObj != NULL) { This->dataObj->lpVtbl->Release(This->dataObj); This->dataObj->lpVtbl = NULL; } talloc_free(This); } static HRESULT STDMETHODCALLTYPE DropTarget_QueryInterface(IDropTarget* This, REFIID riid, void** ppvObject) { if (!IsEqualGUID(riid, &IID_IUnknown) || !IsEqualGUID(riid, &IID_IDataObject)) { *ppvObject = NULL; return E_NOINTERFACE; } *ppvObject = This; This->lpVtbl->AddRef(This); return S_OK; } static ULONG STDMETHODCALLTYPE DropTarget_AddRef(IDropTarget* This) { DropTarget* t = (DropTarget*)This; return atomic_fetch_add(&t->refCnt, 1) + 1; } static ULONG STDMETHODCALLTYPE DropTarget_Release(IDropTarget* This) { DropTarget* t = (DropTarget*)This; ULONG cRef = atomic_fetch_add(&t->refCnt, -1) - 1; if (cRef == 0) { DropTarget_Destroy(t); } return cRef; } static HRESULT STDMETHODCALLTYPE DropTarget_DragEnter(IDropTarget* This, IDataObject* pDataObj, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect) { DropTarget* t = (DropTarget*)This; pDataObj->lpVtbl->AddRef(pDataObj); if (pDataObj->lpVtbl->QueryGetData(pDataObj, &fmtetc_file) != S_OK && pDataObj->lpVtbl->QueryGetData(pDataObj, &fmtetc_url) != S_OK) { *pdwEffect = DROPEFFECT_NONE; } if (t->dataObj != NULL) { t->dataObj->lpVtbl->Release(t->dataObj); } t->dataObj = pDataObj; t->lastEffect = *pdwEffect; return S_OK; } static HRESULT STDMETHODCALLTYPE DropTarget_DragOver(IDropTarget* This, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect) { DropTarget* t = (DropTarget*)This; *pdwEffect = t->lastEffect; return S_OK; } static HRESULT STDMETHODCALLTYPE DropTarget_DragLeave(IDropTarget* This) { DropTarget* t = (DropTarget*)This; if (t->dataObj != NULL) { t->dataObj->lpVtbl->Release(t->dataObj); t->dataObj = NULL; } return S_OK; } static HRESULT STDMETHODCALLTYPE DropTarget_Drop(IDropTarget* This, IDataObject* pDataObj, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect) { DropTarget* t = (DropTarget*)This; STGMEDIUM medium; if (t->dataObj != NULL) { t->dataObj->lpVtbl->Release(t->dataObj); t->dataObj = NULL; } pDataObj->lpVtbl->AddRef(pDataObj); if (pDataObj->lpVtbl->GetData(pDataObj, &fmtetc_file, &medium) == S_OK) { if (GlobalLock(medium.hGlobal) != NULL) { HDROP hDrop = (HDROP)medium.hGlobal; UINT numFiles = DragQueryFileW(hDrop, 0xFFFFFFFF, NULL, 0); char** files = talloc_zero_array(NULL, char*, numFiles); UINT nrecvd_files = 0; for (UINT i = 0; i < numFiles; i++) { UINT len = DragQueryFileW(hDrop, i, NULL, 0); wchar_t* buf = talloc_array(NULL, wchar_t, len + 1); if (DragQueryFileW(hDrop, i, buf, len + 1) == len) { char* fname = mp_to_utf8(files, buf); files[nrecvd_files++] = fname; MP_VERBOSE(t->w32, "received dropped file: %s\n", fname); } else { MP_ERR(t->w32, "error getting dropped file name\n"); } talloc_free(buf); } GlobalUnlock(medium.hGlobal); mp_event_drop_files(t->w32->input_ctx, nrecvd_files, files); talloc_free(files); } ReleaseStgMedium(&medium); } else if (pDataObj->lpVtbl->GetData(pDataObj, &fmtetc_url, &medium) == S_OK) { // get the URL encoded in US-ASCII char* url = (char*)GlobalLock(medium.hGlobal); if (url != NULL) { if (mp_event_drop_mime_data(t->w32->input_ctx, "text/uri-list", bstr0(url)) > 0) { MP_VERBOSE(t->w32, "received dropped URL: %s\n", url); } else { MP_ERR(t->w32, "error getting dropped URL\n"); } GlobalUnlock(medium.hGlobal); } ReleaseStgMedium(&medium); } else { t->lastEffect = DROPEFFECT_NONE; } pDataObj->lpVtbl->Release(pDataObj); *pdwEffect = t->lastEffect; return S_OK; } static void DropTarget_Init(DropTarget* This, struct vo_w32_state *w32) { IDropTargetVtbl* vtbl = talloc(This, IDropTargetVtbl); *vtbl = (IDropTargetVtbl){ DropTarget_QueryInterface, DropTarget_AddRef, DropTarget_Release, DropTarget_DragEnter, DropTarget_DragOver, DropTarget_DragLeave, DropTarget_Drop }; This->iface.lpVtbl = vtbl; atomic_store(&This->refCnt, 0); This->lastEffect = 0; This->dataObj = NULL; This->w32 = w32; } static void add_window_borders(HWND hwnd, RECT *rc) { AdjustWindowRect(rc, GetWindowLong(hwnd, GWL_STYLE), 0); } // basically a reverse AdjustWindowRect (win32 doesn't appear to have this) static void subtract_window_borders(HWND hwnd, RECT *rc) { RECT b = { 0, 0, 0, 0 }; add_window_borders(hwnd, &b); rc->left -= b.left; rc->top -= b.top; rc->right -= b.right; rc->bottom -= b.bottom; } static LRESULT borderless_nchittest(struct vo_w32_state *w32, int x, int y) { if (IsMaximized(w32->window)) return HTCLIENT; POINT mouse = { x, y }; ScreenToClient(w32->window, &mouse); // The diagonal size handles are slightly wider than the side borders int handle_width = GetSystemMetrics(SM_CXSMSIZE) + GetSystemMetrics(SM_CXBORDER); // Hit-test top border int frame_height = GetSystemMetrics(SM_CYFRAME) + GetSystemMetrics(SM_CXPADDEDBORDER); if (mouse.y < frame_height) { if (mouse.x < handle_width) return HTTOPLEFT; if (mouse.x > w32->dw - handle_width) return HTTOPRIGHT; return HTTOP; } // Hit-test bottom border if (mouse.y > w32->dh - frame_height) { if (mouse.x < handle_width) return HTBOTTOMLEFT; if (mouse.x > w32->dw - handle_width) return HTBOTTOMRIGHT; return HTBOTTOM; } // Hit-test side borders int frame_width = GetSystemMetrics(SM_CXFRAME) + GetSystemMetrics(SM_CXPADDEDBORDER); if (mouse.x < frame_width) return HTLEFT; if (mouse.x > w32->dw - frame_width) return HTRIGHT; return HTCLIENT; } // turn a WMSZ_* input value in v into the border that should be resized // returns: 0=left, 1=top, 2=right, 3=bottom, -1=undefined static int get_resize_border(int v) { switch (v) { case WMSZ_LEFT: return 3; case WMSZ_TOP: return 2; case WMSZ_RIGHT: return 3; case WMSZ_BOTTOM: return 2; case WMSZ_TOPLEFT: return 1; case WMSZ_TOPRIGHT: return 1; case WMSZ_BOTTOMLEFT: return 3; case WMSZ_BOTTOMRIGHT: return 3; default: return -1; } } static bool key_state(int vk) { return GetKeyState(vk) & 0x8000; } static int mod_state(struct vo_w32_state *w32) { int res = 0; // AltGr is represented as LCONTROL+RMENU on Windows bool alt_gr = mp_input_use_alt_gr(w32->input_ctx) && key_state(VK_RMENU) && key_state(VK_LCONTROL); if (key_state(VK_RCONTROL) || (key_state(VK_LCONTROL) && !alt_gr)) res |= MP_KEY_MODIFIER_CTRL; if (key_state(VK_SHIFT)) res |= MP_KEY_MODIFIER_SHIFT; if (key_state(VK_LMENU) || (key_state(VK_RMENU) && !alt_gr)) res |= MP_KEY_MODIFIER_ALT; return res; } static int decode_surrogate_pair(wchar_t lead, wchar_t trail) { return 0x10000 + (((lead & 0x3ff) << 10) | (trail & 0x3ff)); } static int decode_utf16(struct vo_w32_state *w32, wchar_t c) { // Decode UTF-16, keeping state in w32->high_surrogate if (IS_HIGH_SURROGATE(c)) { w32->high_surrogate = c; return 0; } if (IS_LOW_SURROGATE(c)) { if (!w32->high_surrogate) { MP_ERR(w32, "Invalid UTF-16 input\n"); return 0; } int codepoint = decode_surrogate_pair(w32->high_surrogate, c); w32->high_surrogate = 0; return codepoint; } if (w32->high_surrogate != 0) { w32->high_surrogate = 0; MP_ERR(w32, "Invalid UTF-16 input\n"); return 0; } return c; } static void clear_keyboard_buffer(void) { static const UINT vkey = VK_DECIMAL; static const BYTE keys[256] = { 0 }; UINT scancode = MapVirtualKey(vkey, MAPVK_VK_TO_VSC); wchar_t buf[10]; int ret = 0; // Use the method suggested by Michael Kaplan to clear any pending dead // keys from the current keyboard layout. See: // https://web.archive.org/web/20101004154432/http://blogs.msdn.com/b/michkap/archive/2006/04/06/569632.aspx // https://web.archive.org/web/20100820152419/http://blogs.msdn.com/b/michkap/archive/2007/10/27/5717859.aspx do { ret = ToUnicode(vkey, scancode, keys, buf, MP_ARRAY_SIZE(buf), 0); } while (ret < 0); } static int to_unicode(UINT vkey, UINT scancode, const BYTE keys[256]) { // This wraps ToUnicode to be stateless and to return only one character // Make the buffer 10 code units long to be safe, same as here: // https://web.archive.org/web/20101013215215/http://blogs.msdn.com/b/michkap/archive/2006/03/24/559169.aspx wchar_t buf[10] = { 0 }; // Dead keys aren't useful for key shortcuts, so clear the keyboard state clear_keyboard_buffer(); int len = ToUnicode(vkey, scancode, keys, buf, MP_ARRAY_SIZE(buf), 0); // Return the last complete UTF-16 code point. A negative return value // indicates a dead key, however there should still be a non-combining // version of the key in the buffer. if (len < 0) len = -len; if (len >= 2 && IS_SURROGATE_PAIR(buf[len - 2], buf[len - 1])) return decode_surrogate_pair(buf[len - 2], buf[len - 1]); if (len >= 1) return buf[len - 1]; return 0; } static int decode_key(struct vo_w32_state *w32, UINT vkey, UINT scancode) { BYTE keys[256]; GetKeyboardState(keys); // If mp_input_use_alt_gr is false, detect and remove AltGr so normal // characters are generated. Note that AltGr is represented as // LCONTROL+RMENU on Windows. if ((keys[VK_RMENU] & 0x80) && (keys[VK_LCONTROL] & 0x80) && !mp_input_use_alt_gr(w32->input_ctx)) { keys[VK_RMENU] = keys[VK_LCONTROL] = 0; keys[VK_MENU] = keys[VK_LMENU]; keys[VK_CONTROL] = keys[VK_RCONTROL]; } int c = to_unicode(vkey, scancode, keys); // Some shift states prevent ToUnicode from working or cause it to produce // control characters. If this is detected, remove modifiers until it // starts producing normal characters. if (c < 0x20 && (keys[VK_MENU] & 0x80)) { keys[VK_LMENU] = keys[VK_RMENU] = keys[VK_MENU] = 0; c = to_unicode(vkey, scancode, keys); } if (c < 0x20 && (keys[VK_CONTROL] & 0x80)) { keys[VK_LCONTROL] = keys[VK_RCONTROL] = keys[VK_CONTROL] = 0; c = to_unicode(vkey, scancode, keys); } if (c < 0x20) return 0; // Decode lone UTF-16 surrogates (VK_PACKET can generate these) if (c < 0x10000) return decode_utf16(w32, c); return c; } static void handle_key_down(struct vo_w32_state *w32, UINT vkey, UINT scancode) { // Ignore key repeat if (scancode & KF_REPEAT) return; int mpkey = mp_w32_vkey_to_mpkey(vkey, scancode & KF_EXTENDED); if (!mpkey) { mpkey = decode_key(w32, vkey, scancode & (0xff | KF_EXTENDED)); if (!mpkey) return; } mp_input_put_key(w32->input_ctx, mpkey | mod_state(w32) | MP_KEY_STATE_DOWN); } static void handle_key_up(struct vo_w32_state *w32, UINT vkey, UINT scancode) { switch (vkey) { case VK_MENU: case VK_CONTROL: case VK_SHIFT: break; default: // Releasing all keys on key-up is simpler and ensures no keys can be // get "stuck." This matches the behaviour of other VOs. mp_input_put_key(w32->input_ctx, MP_INPUT_RELEASE_ALL); } } static bool handle_char(struct vo_w32_state *w32, wchar_t wc) { int c = decode_utf16(w32, wc); if (c == 0) return true; if (c < 0x20) return false; mp_input_put_key(w32->input_ctx, c | mod_state(w32)); return true; } static void signal_events(struct vo_w32_state *w32, int events) { w32->event_flags |= events; vo_wakeup(w32->vo); } static void wakeup_gui_thread(void *ctx) { struct vo_w32_state *w32 = ctx; PostMessage(w32->window, WM_USER, 0, 0); } static double vo_w32_get_display_fps(struct vo_w32_state *w32) { // Get the device name of the monitor containing the window HMONITOR mon = MonitorFromWindow(w32->window, MONITOR_DEFAULTTOPRIMARY); MONITORINFOEXW mi = { .cbSize = sizeof mi }; GetMonitorInfoW(mon, (MONITORINFO*)&mi); DEVMODE dm = { .dmSize = sizeof dm }; if (!EnumDisplaySettingsW(mi.szDevice, ENUM_CURRENT_SETTINGS, &dm)) return -1; // May return 0 or 1 which "represent the display hardware's default refresh rate" // https://msdn.microsoft.com/en-us/library/windows/desktop/dd183565%28v=vs.85%29.aspx // mpv validates this value with a threshold of 1, so don't return exactly 1 if (dm.dmDisplayFrequency == 1) return 0; // dm.dmDisplayFrequency is an integer which is rounded down, so it's // highly likely that 23 represents 24/1.001, 59 represents 60/1.001, etc. // A caller can always reproduce the original value by using floor. double rv = dm.dmDisplayFrequency; switch (dm.dmDisplayFrequency) { case 23: case 29: case 47: case 59: case 71: case 89: case 95: case 119: case 143: rv = (rv + 1) / 1.001; } return rv; } static void update_display_fps(struct vo_w32_state *w32) { double fps = vo_w32_get_display_fps(w32); if (fps != w32->display_fps) { w32->display_fps = fps; signal_events(w32, VO_EVENT_WIN_STATE); MP_VERBOSE(w32, "display-fps: %f\n", fps); } } static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { assert(w32_thread_context); struct vo_w32_state *w32 = w32_thread_context; if (!w32->window) w32->window = hWnd; // can happen during CreateWindow*! assert(w32->window == hWnd); int mouse_button = 0; switch (message) { case WM_USER: // This message is used to wakeup the GUI thread, see wakeup_gui_thread. mp_dispatch_queue_process(w32->dispatch, 0); break; case WM_ERASEBKGND: // no need to erase background separately return 1; case WM_PAINT: signal_events(w32, VO_EVENT_EXPOSE); break; case WM_MOVE: { POINT p = {0}; ClientToScreen(w32->window, &p); w32->window_x = p.x; w32->window_y = p.y; update_display_fps(w32); // if we moved between monitors MP_VERBOSE(w32, "move window: %d:%d\n", w32->window_x, w32->window_y); break; } case WM_SIZE: { RECT r; if (GetClientRect(w32->window, &r) && r.right > 0 && r.bottom > 0) { w32->dw = r.right; w32->dh = r.bottom; update_display_fps(w32); // if we moved between monitors signal_events(w32, VO_EVENT_RESIZE); MP_VERBOSE(w32, "resize window: %d:%d\n", w32->dw, w32->dh); } // Window may have been minimized or restored signal_events(w32, VO_EVENT_WIN_STATE); break; } case WM_SIZING: if (w32->opts->keepaspect && w32->opts->keepaspect_window && !w32->current_fs && !w32->parent) { RECT *rc = (RECT*)lParam; // get client area of the windows if it had the rect rc // (subtracting the window borders) RECT r = *rc; subtract_window_borders(w32->window, &r); int c_w = r.right - r.left, c_h = r.bottom - r.top; float aspect = w32->o_dwidth / (float) MPMAX(w32->o_dheight, 1); int d_w = c_h * aspect - c_w; int d_h = c_w / aspect - c_h; int d_corners[4] = { d_w, d_h, -d_w, -d_h }; int corners[4] = { rc->left, rc->top, rc->right, rc->bottom }; int corner = get_resize_border(wParam); if (corner >= 0) corners[corner] -= d_corners[corner]; *rc = (RECT) { corners[0], corners[1], corners[2], corners[3] }; return TRUE; } break; case WM_CLOSE: // Don't actually allow it to destroy the window, or whatever else it // is that will make us lose WM_USER wakeups. mp_input_put_key(w32->input_ctx, MP_KEY_CLOSE_WIN); return 0; case WM_DESTROY: w32->destroyed = true; w32->window = NULL; PostQuitMessage(0); return 0; case WM_SYSCOMMAND: switch (wParam) { case SC_SCREENSAVE: case SC_MONITORPOWER: if (w32->disable_screensaver) { MP_VERBOSE(w32, "killing screensaver\n"); return 0; } break; } break; case WM_NCHITTEST: // Provide sizing handles for borderless windows if (!w32->opts->border && !w32->current_fs) { return borderless_nchittest(w32, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)); } break; case WM_SYSKEYDOWN: // Open the window menu on Alt+Space. Normally DefWindowProc opens the // window menu in response to WM_SYSCHAR, but since mpv translates its // own keyboard input, WM_SYSCHAR isn't generated, so the window menu // must be opened manually. if (wParam == VK_SPACE) { SendMessage(w32->window, WM_SYSCOMMAND, SC_KEYMENU, ' '); return 0; } // Handle all other WM_SYSKEYDOWN messages as WM_KEYDOWN case WM_KEYDOWN: handle_key_down(w32, wParam, HIWORD(lParam)); if (wParam == VK_F10) return 0; break; case WM_SYSKEYUP: case WM_KEYUP: handle_key_up(w32, wParam, HIWORD(lParam)); if (wParam == VK_F10) return 0; break; case WM_CHAR: case WM_SYSCHAR: if (handle_char(w32, wParam)) return 0; break; case WM_KILLFOCUS: mp_input_put_key(w32->input_ctx, MP_INPUT_RELEASE_ALL); break; case WM_SETCURSOR: // The cursor should only be hidden if the mouse is in the client area // and if the window isn't in menu mode (HIWORD(lParam) is non-zero) w32->can_set_cursor = LOWORD(lParam) == HTCLIENT && HIWORD(lParam); if (w32->can_set_cursor && !w32->cursor_visible) { SetCursor(NULL); return TRUE; } break; case WM_MOUSELEAVE: w32->tracking = FALSE; mp_input_put_key(w32->input_ctx, MP_KEY_MOUSE_LEAVE); break; case WM_MOUSEMOVE: { if (!w32->tracking) { w32->tracking = TrackMouseEvent(&w32->trackEvent); mp_input_put_key(w32->input_ctx, MP_KEY_MOUSE_ENTER); } // Windows can send spurious mouse events, which would make the mpv // core unhide the mouse cursor on completely unrelated events. See: // https://blogs.msdn.com/b/oldnewthing/archive/2003/10/01/55108.aspx int x = GET_X_LPARAM(lParam); int y = GET_Y_LPARAM(lParam); if (x != w32->mouse_x || y != w32->mouse_y) { w32->mouse_x = x; w32->mouse_y = y; mp_input_set_mouse_pos(w32->input_ctx, x, y); } break; } case WM_LBUTTONDOWN: mouse_button = MP_MOUSE_BTN0 | MP_KEY_STATE_DOWN; break; case WM_LBUTTONUP: mouse_button = MP_MOUSE_BTN0 | MP_KEY_STATE_UP; break; case WM_MBUTTONDOWN: mouse_button = MP_MOUSE_BTN1 | MP_KEY_STATE_DOWN; break; case WM_MBUTTONUP: mouse_button = MP_MOUSE_BTN1 | MP_KEY_STATE_UP; break; case WM_RBUTTONDOWN: mouse_button = MP_MOUSE_BTN2 | MP_KEY_STATE_DOWN; break; case WM_RBUTTONUP: mouse_button = MP_MOUSE_BTN2 | MP_KEY_STATE_UP; break; case WM_MOUSEWHEEL: { int x = GET_WHEEL_DELTA_WPARAM(wParam); mouse_button = x > 0 ? MP_MOUSE_BTN3 : MP_MOUSE_BTN4; break; } case WM_XBUTTONDOWN: mouse_button = HIWORD(wParam) == 1 ? MP_MOUSE_BTN5 : MP_MOUSE_BTN6; mouse_button |= MP_KEY_STATE_DOWN; break; case WM_XBUTTONUP: mouse_button = HIWORD(wParam) == 1 ? MP_MOUSE_BTN5 : MP_MOUSE_BTN6; mouse_button |= MP_KEY_STATE_UP; break; case WM_DISPLAYCHANGE: update_display_fps(w32); break; } if (mouse_button) { mouse_button |= mod_state(w32); mp_input_put_key(w32->input_ctx, mouse_button); if (mp_input_mouse_enabled(w32->input_ctx)) { int x = GET_X_LPARAM(lParam); int y = GET_Y_LPARAM(lParam); if (mouse_button == (MP_MOUSE_BTN0 | MP_KEY_STATE_DOWN) && !w32->current_fs && !mp_input_test_dragging(w32->input_ctx, x, y)) { // Window dragging hack ReleaseCapture(); SendMessage(hWnd, WM_NCLBUTTONDOWN, HTCAPTION, 0); mp_input_put_key(w32->input_ctx, MP_MOUSE_BTN0 | MP_KEY_STATE_UP); return 0; } } if (mouse_button & MP_KEY_STATE_DOWN) SetCapture(w32->window); else ReleaseCapture(); } return DefWindowProcW(hWnd, message, wParam, lParam); } static bool is_key_message(UINT msg) { return msg == WM_KEYDOWN || msg == WM_SYSKEYDOWN || msg == WM_KEYUP || msg == WM_SYSKEYUP; } // Dispatch incoming window events and handle them. // This returns only when the thread is asked to terminate. static void run_message_loop(struct vo_w32_state *w32) { MSG msg; while (GetMessageW(&msg, 0, 0, 0) > 0) { // Only send IME messages to TranslateMessage if (is_key_message(msg.message) && msg.wParam == VK_PROCESSKEY) TranslateMessage(&msg); DispatchMessageW(&msg); if (w32->parent) { RECT r, rp; BOOL res = GetClientRect(w32->window, &r); res = res && GetClientRect(w32->parent, &rp); if (res && (r.right != rp.right || r.bottom != rp.bottom)) MoveWindow(w32->window, 0, 0, rp.right, rp.bottom, FALSE); // Window has probably been closed, e.g. due to parent program crash if (!IsWindow(w32->parent)) mp_input_put_key(w32->input_ctx, MP_KEY_CLOSE_WIN); } } // Even if the message loop somehow exits, we still have to respond to // external requests until termination is requested. while (!w32->terminate) mp_dispatch_queue_process(w32->dispatch, 1000); } static BOOL CALLBACK mon_enum(HMONITOR hmon, HDC hdc, LPRECT r, LPARAM p) { struct vo_w32_state *w32 = (void *)p; // this defaults to the last screen if specified number does not exist w32->screenrc = (struct mp_rect){r->left, r->top, r->right, r->bottom}; if (w32->mon_cnt == w32->mon_id) return FALSE; w32->mon_cnt++; return TRUE; } static void w32_update_xinerama_info(struct vo_w32_state *w32) { struct mp_vo_opts *opts = w32->opts; int screen = w32->current_fs ? opts->fsscreen_id : opts->screen_id; if (w32->current_fs && screen == -2) { struct mp_rect rc = { GetSystemMetrics(SM_XVIRTUALSCREEN), GetSystemMetrics(SM_YVIRTUALSCREEN), GetSystemMetrics(SM_CXVIRTUALSCREEN), GetSystemMetrics(SM_CYVIRTUALSCREEN), }; if (!rc.x1 || !rc.y1) { rc.x0 = rc.y0 = 0; rc.x1 = w32->screenrc.x1; rc.y1 = w32->screenrc.y1; } rc.x1 += rc.x0; rc.y1 += rc.y0; w32->screenrc = rc; } else if (screen == -1) { MONITORINFO mi; HMONITOR m = MonitorFromWindow(w32->window, MONITOR_DEFAULTTOPRIMARY); mi.cbSize = sizeof(mi); GetMonitorInfoW(m, &mi); w32->screenrc = (struct mp_rect){ mi.rcMonitor.left, mi.rcMonitor.top, mi.rcMonitor.right, mi.rcMonitor.bottom, }; } else if (screen >= 0) { w32->mon_cnt = 0; w32->mon_id = screen; EnumDisplayMonitors(NULL, NULL, mon_enum, (LONG_PTR)w32); } } static void updateScreenProperties(struct vo_w32_state *w32) { DEVMODE dm; dm.dmSize = sizeof dm; dm.dmDriverExtra = 0; dm.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT; if (!EnumDisplaySettings(0, ENUM_CURRENT_SETTINGS, &dm)) { MP_ERR(w32, "unable to enumerate display settings!\n"); return; } w32->screenrc = (struct mp_rect){0, 0, dm.dmPelsWidth, dm.dmPelsHeight}; w32_update_xinerama_info(w32); } static DWORD update_style(struct vo_w32_state *w32, DWORD style) { const DWORD NO_FRAME = WS_POPUP; const DWORD FRAME = WS_OVERLAPPEDWINDOW | WS_SIZEBOX; style &= ~(NO_FRAME | FRAME); style |= (w32->opts->border && !w32->current_fs) ? FRAME : NO_FRAME; return style; } // Update the window title, position, size, and border style. static int reinit_window_state(struct vo_w32_state *w32) { HWND layer = HWND_NOTOPMOST; RECT r; if (w32->parent) return 1; bool new_fs = w32->opts->fullscreen; bool toggle_fs = w32->current_fs != new_fs; w32->current_fs = new_fs; if (w32->taskbar_list) { ITaskbarList2_MarkFullscreenWindow(w32->taskbar_list, w32->window, w32->current_fs); } DWORD style = update_style(w32, GetWindowLong(w32->window, GWL_STYLE)); if (w32->opts->ontop) layer = HWND_TOPMOST; // xxx not sure if this can trigger any unwanted messages (WM_MOVE/WM_SIZE) updateScreenProperties(w32); int screen_w = w32->screenrc.x1 - w32->screenrc.x0; int screen_h = w32->screenrc.y1 - w32->screenrc.y0; if (w32->current_fs) { // Save window position and size when switching to fullscreen. if (toggle_fs) { w32->prev_width = w32->dw; w32->prev_height = w32->dh; w32->prev_x = w32->window_x; w32->prev_y = w32->window_y; MP_VERBOSE(w32, "save window bounds: %d:%d:%d:%d\n", w32->prev_x, w32->prev_y, w32->prev_width, w32->prev_height); } w32->window_x = w32->screenrc.x0; w32->window_y = w32->screenrc.y0; w32->dw = screen_w; w32->dh = screen_h; } else { if (toggle_fs) { // Restore window position and size when switching from fullscreen. MP_VERBOSE(w32, "restore window bounds: %d:%d:%d:%d\n", w32->prev_x, w32->prev_y, w32->prev_width, w32->prev_height); w32->dw = w32->prev_width; w32->dh = w32->prev_height; w32->window_x = w32->prev_x; w32->window_y = w32->prev_y; } } r.left = w32->window_x; r.right = r.left + w32->dw; r.top = w32->window_y; r.bottom = r.top + w32->dh; SetWindowLong(w32->window, GWL_STYLE, style); RECT cr = r; add_window_borders(w32->window, &r); if (!w32->current_fs && ((r.right - r.left) >= screen_w || (r.bottom - r.top) >= screen_h)) { MP_VERBOSE(w32, "requested window size larger than the screen\n"); // Use the aspect of the client area, not the full window size. // Basically, try to compute the maximum window size. long n_w = screen_w - (r.right - cr.right) - (cr.left - r.left) - 1; long n_h = screen_h - (r.bottom - cr.bottom) - (cr.top - r.top) - 1; // Letterbox double asp = (cr.right - cr.left) / (double)(cr.bottom - cr.top); double s_asp = n_w / (double)n_h; if (asp > s_asp) { n_h = n_w / asp; } else { n_w = n_h * asp; } r = (RECT){.right = n_w, .bottom = n_h}; add_window_borders(w32->window, &r); // Center the final window n_w = r.right - r.left; n_h = r.bottom - r.top; r.left = w32->screenrc.x0 + screen_w / 2 - n_w / 2; r.top = w32->screenrc.y0 + screen_h / 2 - n_h / 2; r.right = r.left + n_w; r.bottom = r.top + n_h; } MP_VERBOSE(w32, "reset window bounds: %d:%d:%d:%d\n", (int) r.left, (int) r.top, (int)(r.right - r.left), (int)(r.bottom - r.top)); SetWindowPos(w32->window, layer, r.left, r.top, r.right - r.left, r.bottom - r.top, SWP_FRAMECHANGED | SWP_SHOWWINDOW); signal_events(w32, VO_EVENT_RESIZE); return 1; } static void gui_thread_reconfig(void *ptr) { void **p = ptr; struct vo_w32_state *w32 = p[0]; uint32_t flags = *(uint32_t *)p[1]; int *res = p[2]; struct vo *vo = w32->vo; // we already have a fully initialized window, so nothing needs to be done if (flags & VOFLAG_HIDDEN) { *res = 1; return; } struct vo_win_geometry geo; vo_calc_window_geometry(vo, &w32->screenrc, &geo); vo_apply_window_geometry(vo, &geo); bool reset_size = w32->o_dwidth != vo->dwidth || w32->o_dheight != vo->dheight; w32->o_dwidth = vo->dwidth; w32->o_dheight = vo->dheight; // the desired size is ignored in wid mode, it always matches the window size. if (!w32->parent) { if (w32->window_bounds_initialized) { // restore vo_dwidth/vo_dheight, which are reset against our will // in vo_config() RECT r; GetClientRect(w32->window, &r); vo->dwidth = r.right; vo->dheight = r.bottom; } else { w32->window_bounds_initialized = true; reset_size = true; w32->window_x = w32->prev_x = geo.win.x0; w32->window_y = w32->prev_y = geo.win.y0; } if (reset_size) { w32->prev_width = vo->dwidth = w32->o_dwidth; w32->prev_height = vo->dheight = w32->o_dheight; } } else { RECT r; GetClientRect(w32->window, &r); vo->dwidth = r.right; vo->dheight = r.bottom; } w32->dw = vo->dwidth; w32->dh = vo->dheight; *res = reinit_window_state(w32); } // Resize the window. On the first non-VOFLAG_HIDDEN call, it's also made visible. int vo_w32_config(struct vo *vo, uint32_t flags) { struct vo_w32_state *w32 = vo->w32; int r; void *p[] = {w32, &flags, &r}; mp_dispatch_run(w32->dispatch, gui_thread_reconfig, p); return r; } static void *gui_thread(void *ptr) { struct vo_w32_state *w32 = ptr; bool ole_ok = false; int res = 0; mpthread_set_name("win32 window"); HINSTANCE hInstance = GetModuleHandleW(NULL); WNDCLASSEXW wcex = { .cbSize = sizeof wcex, .style = CS_HREDRAW | CS_VREDRAW, .lpfnWndProc = WndProc, .hInstance = hInstance, .hIcon = LoadIconW(hInstance, L"IDI_ICON1"), .hCursor = LoadCursor(NULL, IDC_ARROW), .lpszClassName = classname, }; if (!RegisterClassExW(&wcex)) { MP_ERR(w32, "unable to register window class!\n"); goto done; } w32_thread_context = w32; if (w32->opts->WinID >= 0) w32->parent = (HWND)(intptr_t)(w32->opts->WinID); if (w32->parent) { RECT r; GetClientRect(w32->parent, &r); w32->window = CreateWindowExW(WS_EX_NOPARENTNOTIFY, classname, classname, WS_CHILD | WS_VISIBLE, 0, 0, r.right, r.bottom, w32->parent, 0, hInstance, NULL); } else { w32->window = CreateWindowExW(0, classname, classname, update_style(w32, 0), CW_USEDEFAULT, SW_HIDE, 100, 100, 0, 0, hInstance, NULL); } if (!w32->window) { MP_ERR(w32, "unable to create window!\n"); goto done; } if (SUCCEEDED(OleInitialize(NULL))) { ole_ok = true; fmtetc_url.cfFormat = (CLIPFORMAT)RegisterClipboardFormat(TEXT("UniformResourceLocator")); DropTarget* dropTarget = talloc(NULL, DropTarget); DropTarget_Init(dropTarget, w32); RegisterDragDrop(w32->window, &dropTarget->iface); // ITaskbarList2 has the MarkFullscreenWindow method, which is used to // make sure the taskbar is hidden when mpv goes fullscreen if (SUCCEEDED(CoCreateInstance(&CLSID_TaskbarList, NULL, CLSCTX_INPROC_SERVER, &IID_ITaskbarList2, (void**)&w32->taskbar_list))) { if (FAILED(ITaskbarList2_HrInit(w32->taskbar_list))) { ITaskbarList2_Release(w32->taskbar_list); w32->taskbar_list = NULL; } } } else { MP_ERR(w32, "Failed to initialize OLE/COM\n"); } w32->tracking = FALSE; w32->trackEvent = (TRACKMOUSEEVENT){ .cbSize = sizeof(TRACKMOUSEEVENT), .dwFlags = TME_LEAVE, .hwndTrack = w32->window, }; if (w32->parent) EnableWindow(w32->window, 0); w32->cursor_visible = true; updateScreenProperties(w32); mp_dispatch_set_wakeup_fn(w32->dispatch, wakeup_gui_thread, w32); res = 1; done: mp_rendezvous(w32, res); // init barrier // This blocks until the GUI thread is to be exited. if (res) run_message_loop(w32); MP_VERBOSE(w32, "uninit\n"); if (w32->window) { RevokeDragDrop(w32->window); DestroyWindow(w32->window); } if (w32->taskbar_list) ITaskbarList2_Release(w32->taskbar_list); if (ole_ok) OleUninitialize(); SetThreadExecutionState(ES_CONTINUOUS); UnregisterClassW(classname, 0); w32_thread_context = NULL; return NULL; } // Returns: 1 = Success, 0 = Failure int vo_w32_init(struct vo *vo) { assert(!vo->w32); struct vo_w32_state *w32 = talloc_ptrtype(vo, w32); *w32 = (struct vo_w32_state){ .log = mp_log_new(w32, vo->log, "win32"), .vo = vo, .opts = vo->opts, .input_ctx = vo->input_ctx, .dispatch = mp_dispatch_create(w32), }; vo->w32 = w32; if (pthread_create(&w32->thread, NULL, gui_thread, w32)) goto fail; if (!mp_rendezvous(w32, 0)) { // init barrier pthread_join(w32->thread, NULL); goto fail; } return 1; fail: talloc_free(w32); vo->w32 = NULL; return 0; } static int gui_thread_control(struct vo_w32_state *w32, int request, void *arg) { switch (request) { case VOCTRL_FULLSCREEN: w32->opts->fullscreen = !w32->opts->fullscreen; if (w32->opts->fullscreen != w32->current_fs) reinit_window_state(w32); return VO_TRUE; case VOCTRL_ONTOP: w32->opts->ontop = !w32->opts->ontop; reinit_window_state(w32); return VO_TRUE; case VOCTRL_BORDER: w32->opts->border = !w32->opts->border; reinit_window_state(w32); return VO_TRUE; case VOCTRL_GET_UNFS_WINDOW_SIZE: { int *s = arg; if (!w32->window_bounds_initialized) return VO_FALSE; s[0] = w32->current_fs ? w32->prev_width : w32->dw; s[1] = w32->current_fs ? w32->prev_height : w32->dh; return VO_TRUE; } case VOCTRL_SET_UNFS_WINDOW_SIZE: { int *s = arg; if (!w32->window_bounds_initialized) return VO_FALSE; if (w32->current_fs) { w32->prev_width = s[0]; w32->prev_height = s[1]; } else { w32->dw = s[0]; w32->dh = s[1]; } reinit_window_state(w32); return VO_TRUE; } case VOCTRL_GET_WIN_STATE: *(int *)arg = IsIconic(w32->window) ? VO_WIN_STATE_MINIMIZED : 0; return VO_TRUE; case VOCTRL_SET_CURSOR_VISIBILITY: w32->cursor_visible = *(bool *)arg; if (w32->can_set_cursor && w32->tracking) { if (w32->cursor_visible) SetCursor(LoadCursor(NULL, IDC_ARROW)); else SetCursor(NULL); } return VO_TRUE; case VOCTRL_KILL_SCREENSAVER: w32->disable_screensaver = true; SetThreadExecutionState(ES_CONTINUOUS | ES_SYSTEM_REQUIRED | ES_DISPLAY_REQUIRED); return VO_TRUE; case VOCTRL_RESTORE_SCREENSAVER: w32->disable_screensaver = false; SetThreadExecutionState(ES_CONTINUOUS); return VO_TRUE; case VOCTRL_UPDATE_WINDOW_TITLE: { wchar_t *title = mp_from_utf8(NULL, (char *)arg); SetWindowTextW(w32->window, title); talloc_free(title); return VO_TRUE; } case VOCTRL_GET_DISPLAY_FPS: update_display_fps(w32); *(double*) arg = w32->display_fps; return VO_TRUE; } return VO_NOTIMPL; } static void do_control(void *ptr) { void **p = ptr; struct vo_w32_state *w32 = p[0]; int *events = p[1]; int request = *(int *)p[2]; void *arg = p[3]; int *ret = p[4]; *ret = gui_thread_control(w32, request, arg); *events |= w32->event_flags; w32->event_flags = 0; // Safe access, since caller (owner of vo) is blocked. if (*events & VO_EVENT_RESIZE) { w32->vo->dwidth = w32->dw; w32->vo->dheight = w32->dh; } } int vo_w32_control(struct vo *vo, int *events, int request, void *arg) { struct vo_w32_state *w32 = vo->w32; int r; void *p[] = {w32, events, &request, arg, &r}; mp_dispatch_run(w32->dispatch, do_control, p); return r; } static void do_terminate(void *ptr) { struct vo_w32_state *w32 = ptr; w32->terminate = true; if (!w32->destroyed) DestroyWindow(w32->window); } void vo_w32_uninit(struct vo *vo) { struct vo_w32_state *w32 = vo->w32; if (!w32) return; mp_dispatch_run(w32->dispatch, do_terminate, w32); pthread_join(w32->thread, NULL); talloc_free(w32); vo->w32 = NULL; } HWND vo_w32_hwnd(struct vo *vo) { struct vo_w32_state *w32 = vo->w32; return w32->window; // immutable, so no synchronization needed } void vo_w32_run_on_thread(struct vo *vo, void (*cb)(void *ctx), void *ctx) { struct vo_w32_state *w32 = vo->w32; mp_dispatch_run(w32->dispatch, cb, ctx); }