/* * This file is part of mpv. * * mpv is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with mpv. If not, see . */ #include #include #include #include #include #include #include #include #include #include #include "options/m_config.h" #include "options/options.h" #include "input/keycodes.h" #include "input/input.h" #include "input/event.h" #include "stream/stream.h" #include "common/msg.h" #include "common/common.h" #include "vo.h" #include "win_state.h" #include "w32_common.h" #include "win32/displayconfig.h" #include "win32/droptarget.h" #include "osdep/io.h" #include "osdep/threads.h" #include "osdep/w32_keyboard.h" #include "misc/dispatch.h" #include "misc/rendezvous.h" #include "mpv_talloc.h" EXTERN_C IMAGE_DOS_HEADER __ImageBase; #define HINST_THISCOMPONENT ((HINSTANCE)&__ImageBase) #ifndef WM_DPICHANGED #define WM_DPICHANGED (0x02E0) #endif #ifndef DWMWA_USE_IMMERSIVE_DARK_MODE #define DWMWA_USE_IMMERSIVE_DARK_MODE 20 #endif //Older MinGW compatibility #define DWMWA_WINDOW_CORNER_PREFERENCE 33 #define DWMWA_SYSTEMBACKDROP_TYPE 38 #ifndef DPI_ENUMS_DECLARED typedef enum MONITOR_DPI_TYPE { MDT_EFFECTIVE_DPI = 0, MDT_ANGULAR_DPI = 1, MDT_RAW_DPI = 2, MDT_DEFAULT = MDT_EFFECTIVE_DPI } MONITOR_DPI_TYPE; #endif #define rect_w(r) ((r).right - (r).left) #define rect_h(r) ((r).bottom - (r).top) struct w32_api { HRESULT (WINAPI *pGetDpiForMonitor)(HMONITOR, MONITOR_DPI_TYPE, UINT*, UINT*); BOOL (WINAPI *pAdjustWindowRectExForDpi)(LPRECT lpRect, DWORD dwStyle, BOOL bMenu, DWORD dwExStyle, UINT dpi); BOOLEAN (WINAPI *pShouldAppsUseDarkMode)(void); DWORD (WINAPI *pSetPreferredAppMode)(DWORD mode); }; struct vo_w32_state { struct mp_log *log; struct vo *vo; struct mp_vo_opts *opts; struct m_config_cache *opts_cache; struct input_ctx *input_ctx; mp_thread thread; bool terminate; struct mp_dispatch_queue *dispatch; // used to run stuff on the GUI thread bool in_dispatch; struct w32_api api; // stores functions from dynamically loaded DLLs HWND window; HWND parent; // 0 normally, set in embedding mode HHOOK parent_win_hook; HWINEVENTHOOK parent_evt_hook; HMONITOR monitor; // Handle of the current screen char *color_profile; // Path of the current screen's color profile // Has the window seen a WM_DESTROY? If so, don't call DestroyWindow again. bool destroyed; bool focused; // whether the window position and size were initialized bool window_bounds_initialized; bool current_fs; bool toggle_fs; // whether the current fullscreen state needs to be switched // Note: maximized state doesn't involve nor modify windowrc RECT windowrc; // currently known normal/fullscreen window client rect RECT prev_windowrc; // saved normal window client rect while in fullscreen // video size uint32_t o_dwidth; uint32_t o_dheight; int dpi; double dpi_scale; bool disable_screensaver; bool cursor_visible; atomic_uint event_flags; BOOL tracking; TRACKMOUSEEVENT track_event; 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; // Fit the window to one monitor working area next time it's not fullscreen // and not maximized. Used once after every new "untrusted" size comes from // mpv, else we assume that the last known size is valid and don't fit. // FIXME: on a multi-monitor setup one bit is not enough, because the first // fit (autofit etc) should be to one monitor, but later size changes from // mpv like window-scale (VOCTRL_SET_UNFS_WINDOW_SIZE) should allow the // entire virtual desktop area - but we still limit to one monitor size. bool fit_on_screen; bool win_force_pos; ITaskbarList2 *taskbar_list; ITaskbarList3 *taskbar_list3; UINT tbtn_created_msg; bool tbtn_created; struct voctrl_playback_state current_pstate; // updates on move/resize/displaychange double display_fps; bool moving; union { uint8_t snapped; struct { uint8_t snapped_left : 1; uint8_t snapped_right : 1; uint8_t snapped_top : 1; uint8_t snapped_bottom : 1; }; }; int snap_dx; int snap_dy; HANDLE avrt_handle; bool cleared; bool dragging; BOOL win_arranging; bool conversion_mode_init; }; static void adjust_window_rect(struct vo_w32_state *w32, HWND hwnd, RECT *rc) { if (!w32->opts->border) return; if (w32->api.pAdjustWindowRectExForDpi) { w32->api.pAdjustWindowRectExForDpi(rc, GetWindowLongPtrW(hwnd, GWL_STYLE), 0, GetWindowLongPtrW(hwnd, GWL_EXSTYLE), w32->dpi); } else { AdjustWindowRect(rc, GetWindowLongPtrW(hwnd, GWL_STYLE), 0); } } static void add_window_borders(struct vo_w32_state *w32, HWND hwnd, RECT *rc) { RECT win = *rc; adjust_window_rect(w32, hwnd, rc); // Adjust for title bar height that will be hidden in WM_NCCALCSIZE if (w32->opts->border && !w32->opts->title_bar && !w32->current_fs) rc->top -= rc->top - win.top; } // basically a reverse AdjustWindowRect (win32 doesn't appear to have this) static void subtract_window_borders(struct vo_w32_state *w32, HWND hwnd, RECT *rc) { RECT b = { 0, 0, 0, 0 }; add_window_borders(w32, 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; RECT rc; if (!GetWindowRect(w32->window, &rc)) return HTNOWHERE; POINT frame = {GetSystemMetrics(SM_CXSIZEFRAME), GetSystemMetrics(SM_CYSIZEFRAME)}; if (w32->opts->border) { frame.x += GetSystemMetrics(SM_CXPADDEDBORDER); frame.y += GetSystemMetrics(SM_CXPADDEDBORDER); if (!w32->opts->title_bar) rc.top -= GetSystemMetrics(SM_CXPADDEDBORDER); } InflateRect(&rc, -frame.x, -frame.y); // Hit-test top border if (y < rc.top) { if (x < rc.left) return HTTOPLEFT; if (x > rc.right) return HTTOPRIGHT; return HTTOP; } // Hit-test bottom border if (y > rc.bottom) { if (x < rc.left) return HTBOTTOMLEFT; if (x > rc.right) return HTBOTTOMRIGHT; return HTBOTTOM; } // Hit-test side borders if (x < rc.left) return HTLEFT; if (x > rc.right) return HTRIGHT; return HTCLIENT; } // turn a WMSZ_* input value in v into the border that should be resized // take into consideration which borders are snapped to avoid detaching // returns: 0=left, 1=top, 2=right, 3=bottom, -1=undefined static int get_resize_border(struct vo_w32_state *w32, int v) { switch (v) { case WMSZ_LEFT: case WMSZ_RIGHT: return w32->snapped_bottom ? 1 : 3; case WMSZ_TOP: case WMSZ_BOTTOM: return w32->snapped_right ? 0 : 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: // // 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: // 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 bool handle_appcommand(struct vo_w32_state *w32, UINT cmd) { if (!mp_input_use_media_keys(w32->input_ctx)) return false; int mpkey = mp_w32_appcmd_to_mpkey(cmd); if (!mpkey) return false; mp_input_put_key(w32->input_ctx, mpkey | mod_state(w32)); return true; } 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, WPARAM wc, bool decode) { int c = decode ? decode_utf16(w32, wc) : 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 bool handle_mouse_down(struct vo_w32_state *w32, int btn, int x, int y) { btn |= mod_state(w32); mp_input_put_key(w32->input_ctx, btn | MP_KEY_STATE_DOWN); if (btn == MP_MBTN_LEFT && !mp_input_test_dragging(w32->input_ctx, x, y)) { // Window dragging hack ReleaseCapture(); // The dragging model loop is entered at SendMessage() here. // Unfortunately, the w32->current_fs value is stale because the // input is handled in a different thread, and we cannot wait for // an up-to-date value before entering the model loop if dragging // needs to be kept resonsive. // Workaround this by intercepting the loop in the WM_MOVING message, // where the up-to-date value is available. SystemParametersInfoW(SPI_GETWINARRANGING, 0, &w32->win_arranging, 0); w32->dragging = true; SendMessage(w32->window, WM_NCLBUTTONDOWN, HTCAPTION, 0); w32->dragging = false; SystemParametersInfoW(SPI_SETWINARRANGING, w32->win_arranging, 0, 0); mp_input_put_key(w32->input_ctx, MP_MBTN_LEFT | MP_KEY_STATE_UP); // Indicate the message was handled, so DefWindowProc won't be called return true; } SetCapture(w32->window); return false; } static void handle_mouse_up(struct vo_w32_state *w32, int btn) { btn |= mod_state(w32); mp_input_put_key(w32->input_ctx, btn | MP_KEY_STATE_UP); ReleaseCapture(); } static void handle_mouse_wheel(struct vo_w32_state *w32, bool horiz, int val) { int code; if (horiz) code = val > 0 ? MP_WHEEL_RIGHT : MP_WHEEL_LEFT; else code = val > 0 ? MP_WHEEL_UP : MP_WHEEL_DOWN; mp_input_put_wheel(w32->input_ctx, code | mod_state(w32), abs(val) / 120.); } static void signal_events(struct vo_w32_state *w32, int events) { atomic_fetch_or(&w32->event_flags, events); vo_wakeup(w32->vo); } static void wakeup_gui_thread(void *ctx) { struct vo_w32_state *w32 = ctx; // Wake up the window procedure (which processes the dispatch queue) if (GetWindowThreadProcessId(w32->window, NULL) == GetCurrentThreadId()) { PostMessageW(w32->window, WM_NULL, 0, 0); } else { // Use a sent message when cross-thread, since the queue of sent // messages is processed in some cases when posted messages are blocked SendNotifyMessageW(w32->window, WM_NULL, 0, 0); } } static double get_refresh_rate_from_gdi(const wchar_t *device) { DEVMODEW dm = { .dmSize = sizeof dm }; if (!EnumDisplaySettingsW(device, ENUM_CURRENT_SETTINGS, &dm)) return 0.0; // 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 0.0; // 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: case 164: case 239: case 359: case 479: rv = (rv + 1) / 1.001; } return rv; } static char *get_color_profile(void *ctx, const wchar_t *device) { char *name = NULL; wchar_t *wname = NULL; HDC ic = CreateICW(device, NULL, NULL, NULL); if (!ic) goto done; wname = talloc_array(NULL, wchar_t, MP_PATH_MAX); if (!GetICMProfileW(ic, &(DWORD){ MP_PATH_MAX - 1 }, wname)) goto done; name = mp_to_utf8(ctx, wname); done: if (ic) DeleteDC(ic); talloc_free(wname); return name; } static void update_dpi(struct vo_w32_state *w32) { UINT dpiX, dpiY; HDC hdc = NULL; int dpi = 0; if (w32->api.pGetDpiForMonitor && w32->api.pGetDpiForMonitor(w32->monitor, MDT_EFFECTIVE_DPI, &dpiX, &dpiY) == S_OK) { dpi = (int)dpiX; MP_VERBOSE(w32, "DPI detected from the new API: %d\n", dpi); } else if ((hdc = GetDC(NULL))) { dpi = GetDeviceCaps(hdc, LOGPIXELSX); ReleaseDC(NULL, hdc); MP_VERBOSE(w32, "DPI detected from the old API: %d\n", dpi); } if (dpi <= 0) { dpi = 96; MP_VERBOSE(w32, "Couldn't determine DPI, falling back to %d\n", dpi); } w32->dpi = dpi; w32->dpi_scale = w32->opts->hidpi_window_scale ? w32->dpi / 96.0 : 1.0; signal_events(w32, VO_EVENT_DPI); } static void update_display_info(struct vo_w32_state *w32) { HMONITOR monitor = MonitorFromWindow(w32->window, MONITOR_DEFAULTTOPRIMARY); if (w32->monitor == monitor) return; w32->monitor = monitor; update_dpi(w32); MONITORINFOEXW mi = { .cbSize = sizeof mi }; GetMonitorInfoW(monitor, (MONITORINFO*)&mi); // Try to get the monitor refresh rate. double freq = 0.0; if (freq == 0.0) freq = mp_w32_displayconfig_get_refresh_rate(mi.szDevice); if (freq == 0.0) freq = get_refresh_rate_from_gdi(mi.szDevice); if (freq != w32->display_fps) { MP_VERBOSE(w32, "display-fps: %f\n", freq); if (freq == 0.0) MP_WARN(w32, "Couldn't determine monitor refresh rate\n"); w32->display_fps = freq; signal_events(w32, VO_EVENT_WIN_STATE); } char *color_profile = get_color_profile(w32, mi.szDevice); if ((color_profile == NULL) != (w32->color_profile == NULL) || (color_profile && strcmp(color_profile, w32->color_profile))) { if (color_profile) MP_VERBOSE(w32, "color-profile: %s\n", color_profile); talloc_free(w32->color_profile); w32->color_profile = color_profile; color_profile = NULL; signal_events(w32, VO_EVENT_ICC_PROFILE_CHANGED); } talloc_free(color_profile); } static void force_update_display_info(struct vo_w32_state *w32) { w32->monitor = 0; update_display_info(w32); } static void update_playback_state(struct vo_w32_state *w32) { struct voctrl_playback_state *pstate = &w32->current_pstate; if (!w32->taskbar_list3 || !w32->tbtn_created) return; if (!pstate->playing || !pstate->taskbar_progress) { ITaskbarList3_SetProgressState(w32->taskbar_list3, w32->window, TBPF_NOPROGRESS); return; } ITaskbarList3_SetProgressValue(w32->taskbar_list3, w32->window, pstate->percent_pos, 100); ITaskbarList3_SetProgressState(w32->taskbar_list3, w32->window, pstate->paused ? TBPF_PAUSED : TBPF_NORMAL); } struct get_monitor_data { int i; int target; HMONITOR mon; }; static BOOL CALLBACK get_monitor_proc(HMONITOR mon, HDC dc, LPRECT r, LPARAM p) { struct get_monitor_data *data = (struct get_monitor_data*)p; if (data->i == data->target) { data->mon = mon; return FALSE; } data->i++; return TRUE; } static HMONITOR get_monitor(int id) { struct get_monitor_data data = { .target = id }; EnumDisplayMonitors(NULL, NULL, get_monitor_proc, (LPARAM)&data); return data.mon; } static HMONITOR get_default_monitor(struct vo_w32_state *w32) { const int id = w32->current_fs ? w32->opts->fsscreen_id : w32->opts->screen_id; // Handle --fs-screen= and --screen=default if (id < 0) { if (w32->win_force_pos && !w32->current_fs) { // Get window from forced position return MonitorFromRect(&w32->windowrc, MONITOR_DEFAULTTOPRIMARY); } else { // Let compositor decide return MonitorFromWindow(w32->window, MONITOR_DEFAULTTOPRIMARY); } } HMONITOR mon = get_monitor(id); if (mon) return mon; MP_VERBOSE(w32, "Screen %d does not exist, falling back to primary\n", id); return MonitorFromPoint((POINT){0, 0}, MONITOR_DEFAULTTOPRIMARY); } static MONITORINFO get_monitor_info(struct vo_w32_state *w32) { HMONITOR mon; if (IsWindowVisible(w32->window) && !w32->current_fs) { mon = MonitorFromWindow(w32->window, MONITOR_DEFAULTTOPRIMARY); } else { // The window is not visible during initialization, so get the // monitor by --screen or --fs-screen id, or fallback to primary. mon = get_default_monitor(w32); } MONITORINFO mi = { .cbSize = sizeof(mi) }; GetMonitorInfoW(mon, &mi); return mi; } static RECT get_screen_area(struct vo_w32_state *w32) { // Handle --fs-screen=all if (w32->current_fs && w32->opts->fsscreen_id == -2) { const int x = GetSystemMetrics(SM_XVIRTUALSCREEN); const int y = GetSystemMetrics(SM_YVIRTUALSCREEN); return (RECT) { x, y, x + GetSystemMetrics(SM_CXVIRTUALSCREEN), y + GetSystemMetrics(SM_CYVIRTUALSCREEN) }; } return get_monitor_info(w32).rcMonitor; } static RECT get_working_area(struct vo_w32_state *w32) { return w32->current_fs ? get_screen_area(w32) : get_monitor_info(w32).rcWork; } // Adjust working area boundaries to compensate for invisible borders. static void adjust_working_area_for_extended_frame(RECT *wa_rect, RECT *wnd_rect, HWND wnd) { RECT frame = {0}; if (DwmGetWindowAttribute(wnd, DWMWA_EXTENDED_FRAME_BOUNDS, &frame, sizeof(RECT)) == S_OK) { wa_rect->left -= frame.left - wnd_rect->left; wa_rect->top -= frame.top - wnd_rect->top; wa_rect->right += wnd_rect->right - frame.right; wa_rect->bottom += wnd_rect->bottom - frame.bottom; } } static bool snap_to_screen_edges(struct vo_w32_state *w32, RECT *rc) { if (w32->parent || w32->current_fs || IsMaximized(w32->window)) return false; if (!w32->opts->snap_window) { w32->snapped = 0; return false; } RECT rect; POINT cursor; if (!GetWindowRect(w32->window, &rect) || !GetCursorPos(&cursor)) return false; // Check if window is going to be aero-snapped if (rect_w(*rc) != rect_w(rect) || rect_h(*rc) != rect_h(rect)) return false; // Check if window has already been aero-snapped WINDOWPLACEMENT wp = {0}; wp.length = sizeof(wp); if (!GetWindowPlacement(w32->window, &wp)) return false; RECT wr = wp.rcNormalPosition; if (rect_w(*rc) != rect_w(wr) || rect_h(*rc) != rect_h(wr)) return false; // Get the work area to let the window snap to taskbar wr = get_working_area(w32); adjust_working_area_for_extended_frame(&wr, &rect, w32->window); // Let the window to unsnap by changing its position, // otherwise it will stick to the screen edges forever rect = *rc; if (w32->snapped) { OffsetRect(&rect, cursor.x - rect.left - w32->snap_dx, cursor.y - rect.top - w32->snap_dy); } int threshold = (w32->dpi * 16) / 96; bool was_snapped = !!w32->snapped; w32->snapped = 0; // Adjust X position // snapped_left & snapped_right are mutually exclusive if (abs(rect.left - wr.left) < threshold) { w32->snapped_left = 1; OffsetRect(&rect, wr.left - rect.left, 0); } else if (abs(rect.right - wr.right) < threshold) { w32->snapped_right = 1; OffsetRect(&rect, wr.right - rect.right, 0); } // Adjust Y position // snapped_top & snapped_bottom are mutually exclusive if (abs(rect.top - wr.top) < threshold) { w32->snapped_top = 1; OffsetRect(&rect, 0, wr.top - rect.top); } else if (abs(rect.bottom - wr.bottom) < threshold) { w32->snapped_bottom = 1; OffsetRect(&rect, 0, wr.bottom - rect.bottom); } if (!was_snapped && w32->snapped != 0) { w32->snap_dx = cursor.x - rc->left; w32->snap_dy = cursor.y - rc->top; } *rc = rect; return true; } static DWORD update_style(struct vo_w32_state *w32, DWORD style) { const DWORD NO_FRAME = WS_OVERLAPPED | WS_MINIMIZEBOX | WS_THICKFRAME; const DWORD FRAME = WS_OVERLAPPEDWINDOW; const DWORD FULLSCREEN = NO_FRAME & ~WS_THICKFRAME; style &= ~(NO_FRAME | FRAME | FULLSCREEN); style |= WS_SYSMENU; if (w32->current_fs) { style |= FULLSCREEN; } else { style |= w32->opts->border ? FRAME : NO_FRAME; } return style; } static LONG get_title_bar_height(struct vo_w32_state *w32) { RECT rc = {0}; adjust_window_rect(w32, w32->window, &rc); return -rc.top; } static void update_window_style(struct vo_w32_state *w32) { if (w32->parent) return; // SetWindowLongPtr can trigger a WM_SIZE event, so window rect // has to be saved now and restored after setting the new style. const RECT wr = w32->windowrc; const DWORD style = GetWindowLongPtrW(w32->window, GWL_STYLE); SetWindowLongPtrW(w32->window, GWL_STYLE, update_style(w32, style)); w32->windowrc = wr; } // Resize window rect to width = w and height = h. If window is snapped, // don't let it detach from snapped borders. Otherwise resize around the center. static void resize_and_move_rect(struct vo_w32_state *w32, RECT *rc, int w, int h) { int x, y; if (w32->snapped_left) x = rc->left; else if (w32->snapped_right) x = rc->right - w; else x = rc->left + rect_w(*rc) / 2 - w / 2; if (w32->snapped_top) y = rc->top; else if (w32->snapped_bottom) y = rc->bottom - h; else y = rc->top + rect_h(*rc) / 2 - h / 2; SetRect(rc, x, y, x + w, y + h); } // If rc is wider/taller than n_w/n_h, shrink rc size while keeping the center. // returns true if the rectangle was modified. static bool fit_rect_size(struct vo_w32_state *w32, RECT *rc, long n_w, long n_h) { // nothing to do if we already fit. int o_w = rect_w(*rc), o_h = rect_h(*rc); if (o_w <= n_w && o_h <= n_h) return false; // Apply letterboxing const float o_asp = o_w / (float)MPMAX(o_h, 1); const float n_asp = n_w / (float)MPMAX(n_h, 1); if (o_asp > n_asp) { n_h = n_w / o_asp; } else { n_w = n_h * o_asp; } resize_and_move_rect(w32, rc, n_w, n_h); return true; } // If the window is bigger than the desktop, shrink to fit with same center. // Also, if the top edge is above the working area, move down to align. static void fit_window_on_screen(struct vo_w32_state *w32) { RECT screen = get_working_area(w32); if (w32->opts->border) subtract_window_borders(w32, w32->window, &screen); RECT window_rect; if (GetWindowRect(w32->window, &window_rect)) adjust_working_area_for_extended_frame(&screen, &window_rect, w32->window); bool adjusted = fit_rect_size(w32, &w32->windowrc, rect_w(screen), rect_h(screen)); if (w32->windowrc.top < screen.top) { // if the top-edge of client area is above the target area (mainly // because the client-area is centered but the title bar is taller // than the bottom border), then move it down to align the edges. // Windows itself applies the same constraint during manual move. w32->windowrc.bottom += screen.top - w32->windowrc.top; w32->windowrc.top = screen.top; adjusted = true; } if (adjusted) { MP_VERBOSE(w32, "adjusted window bounds: %d:%d:%d:%d\n", (int)w32->windowrc.left, (int)w32->windowrc.top, (int)rect_w(w32->windowrc), (int)rect_h(w32->windowrc)); } } // Calculate new fullscreen state and change window size and position. static void update_fullscreen_state(struct vo_w32_state *w32) { if (w32->parent) return; bool new_fs = w32->opts->fullscreen; if (w32->toggle_fs) { new_fs = !w32->current_fs; w32->toggle_fs = false; } bool toggle_fs = w32->current_fs != new_fs; w32->opts->fullscreen = w32->current_fs = new_fs; m_config_cache_write_opt(w32->opts_cache, &w32->opts->fullscreen); if (toggle_fs) { if (w32->current_fs) { // Save window rect when switching to fullscreen. w32->prev_windowrc = w32->windowrc; MP_VERBOSE(w32, "save window bounds: %d:%d:%d:%d\n", (int)w32->windowrc.left, (int)w32->windowrc.top, (int)rect_w(w32->windowrc), (int)rect_h(w32->windowrc)); } else { // Restore window rect when switching from fullscreen. w32->windowrc = w32->prev_windowrc; } } if (w32->current_fs) w32->windowrc = get_screen_area(w32); MP_VERBOSE(w32, "reset window bounds: %d:%d:%d:%d\n", (int)w32->windowrc.left, (int)w32->windowrc.top, (int)rect_w(w32->windowrc), (int)rect_h(w32->windowrc)); } static void update_minimized_state(struct vo_w32_state *w32) { if (w32->parent) return; if (!!IsMinimized(w32->window) != w32->opts->window_minimized) { if (w32->opts->window_minimized) { ShowWindow(w32->window, SW_SHOWMINNOACTIVE); } else { ShowWindow(w32->window, SW_RESTORE); } } } static void update_maximized_state(struct vo_w32_state *w32) { if (w32->parent) return; // Don't change the maximized state in fullscreen for now. In future, this // should be made to apply the maximized state on leaving fullscreen. if (w32->current_fs) return; WINDOWPLACEMENT wp = { .length = sizeof wp }; GetWindowPlacement(w32->window, &wp); if (wp.showCmd == SW_SHOWMINIMIZED) { // When the window is minimized, setting this property just changes // whether it will be maximized when it's restored if (w32->opts->window_maximized) { wp.flags |= WPF_RESTORETOMAXIMIZED; } else { wp.flags &= ~WPF_RESTORETOMAXIMIZED; } SetWindowPlacement(w32->window, &wp); } else if ((wp.showCmd == SW_SHOWMAXIMIZED) != w32->opts->window_maximized) { if (w32->opts->window_maximized) { ShowWindow(w32->window, SW_SHOWMAXIMIZED); } else { ShowWindow(w32->window, SW_SHOWNOACTIVATE); } } } static bool is_visible(HWND window) { // Unlike IsWindowVisible, this doesn't check the window's parents return GetWindowLongPtrW(window, GWL_STYLE) & WS_VISIBLE; } //Set the mpv window's affinity. //This will affect how it's displayed on the desktop and in system-level operations like taking screenshots. static void update_affinity(struct vo_w32_state *w32) { if (!w32 || w32->parent) { return; } SetWindowDisplayAffinity(w32->window, w32->opts->window_affinity); } static void update_window_state(struct vo_w32_state *w32) { if (w32->parent) return; RECT wr = w32->windowrc; add_window_borders(w32, w32->window, &wr); SetWindowPos(w32->window, w32->opts->ontop ? HWND_TOPMOST : HWND_NOTOPMOST, wr.left, wr.top, rect_w(wr), rect_h(wr), SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOOWNERZORDER); // Show the window if it's not yet visible if (!is_visible(w32->window)) { if (w32->opts->window_minimized) { ShowWindow(w32->window, SW_SHOWMINNOACTIVE); update_maximized_state(w32); // Set the WPF_RESTORETOMAXIMIZED flag } else if (w32->opts->window_maximized) { ShowWindow(w32->window, SW_SHOWMAXIMIZED); } else { ShowWindow(w32->window, SW_SHOW); } } // Notify the taskbar about the fullscreen state only after the window // is visible, to make sure the taskbar item has already been created if (w32->taskbar_list) { ITaskbarList2_MarkFullscreenWindow(w32->taskbar_list, w32->window, w32->current_fs); } // Update snapping status if needed if (w32->opts->snap_window && !w32->parent && !w32->current_fs && !IsMaximized(w32->window)) { RECT wa = get_working_area(w32); adjust_working_area_for_extended_frame(&wa, &wr, w32->window); // snapped_left & snapped_right are mutually exclusive if (wa.left == wr.left && wa.right == wr.right) { // Leave as is. } else if (wa.left == wr.left) { w32->snapped_left = 1; w32->snapped_right = 0; } else if (wa.right == wr.right) { w32->snapped_right = 1; w32->snapped_left = 0; } else { w32->snapped_left = w32->snapped_right = 0; } // snapped_top & snapped_bottom are mutually exclusive if (wa.top == wr.top && wa.bottom == wr.bottom) { // Leave as is. } else if (wa.top == wr.top) { w32->snapped_top = 1; w32->snapped_bottom = 0; } else if (wa.bottom == wr.bottom) { w32->snapped_bottom = 1; w32->snapped_top = 0; } else { w32->snapped_top = w32->snapped_bottom = 0; } } signal_events(w32, VO_EVENT_RESIZE); } static void update_corners_pref(const struct vo_w32_state *w32) { if (w32->parent) return; int pref = w32->current_fs ? 0 : w32->opts->window_corners; DwmSetWindowAttribute(w32->window, DWMWA_WINDOW_CORNER_PREFERENCE, &pref, sizeof(pref)); } static void reinit_window_state(struct vo_w32_state *w32) { if (w32->parent) return; // The order matters: fs state should be updated prior to changing styles update_fullscreen_state(w32); update_corners_pref(w32); update_window_style(w32); // fit_on_screen is applied at most once when/if applicable (normal win). if (w32->fit_on_screen && !w32->current_fs && !IsMaximized(w32->window)) { fit_window_on_screen(w32); w32->fit_on_screen = false; } // Show and activate the window after all window state parameters were set update_window_state(w32); } // Follow Windows settings and update dark mode state // Microsoft documented how to enable dark mode for title bar: // https://learn.microsoft.com/windows/apps/desktop/modernize/apply-windows-themes // https://learn.microsoft.com/windows/win32/api/dwmapi/ne-dwmapi-dwmwindowattribute // Documentation says to set the DWMWA_USE_IMMERSIVE_DARK_MODE attribute to // TRUE to honor dark mode for the window, FALSE to always use light mode. While // in fact setting it to TRUE causes dark mode to be always enabled, regardless // of the settings. Since it is quite unlikely that it will be fixed, just use // UxTheme API to check if dark mode should be applied and while at it enable it // fully. Ideally this function should only call the DwmSetWindowAttribute(), // but it just doesn't work as documented. static void update_dark_mode(const struct vo_w32_state *w32) { if (w32->api.pSetPreferredAppMode) w32->api.pSetPreferredAppMode(1); // allow dark mode HIGHCONTRAST hc = {sizeof(hc)}; SystemParametersInfo(SPI_GETHIGHCONTRAST, sizeof(hc), &hc, 0); bool high_contrast = hc.dwFlags & HCF_HIGHCONTRASTON; // if pShouldAppsUseDarkMode is not available, just assume it to be true const BOOL use_dark_mode = !high_contrast && (!w32->api.pShouldAppsUseDarkMode || w32->api.pShouldAppsUseDarkMode()); SetWindowTheme(w32->window, use_dark_mode ? L"DarkMode_Explorer" : L"", NULL); DwmSetWindowAttribute(w32->window, DWMWA_USE_IMMERSIVE_DARK_MODE, &use_dark_mode, sizeof(use_dark_mode)); } static void update_backdrop(const struct vo_w32_state *w32) { if (w32->parent) return; int backdropType = w32->opts->backdrop_type; DwmSetWindowAttribute(w32->window, DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType)); } static void update_cursor_passthrough(const struct vo_w32_state *w32) { if (w32->parent) return; LONG_PTR exstyle = GetWindowLongPtrW(w32->window, GWL_EXSTYLE); if (exstyle) { if (w32->opts->cursor_passthrough) { SetWindowLongPtrW(w32->window, GWL_EXSTYLE, exstyle | WS_EX_LAYERED | WS_EX_TRANSPARENT); // This is required, otherwise the titlebar disappears. SetLayeredWindowAttributes(w32->window, 0, 255, LWA_ALPHA); } else { SetWindowLongPtrW(w32->window, GWL_EXSTYLE, exstyle & ~(WS_EX_LAYERED | WS_EX_TRANSPARENT)); } } } static void set_ime_conversion_mode(const struct vo_w32_state *w32, DWORD mode) { if (w32->parent) return; HIMC imc = ImmGetContext(w32->window); if (imc) { DWORD sentence_mode; if (ImmGetConversionStatus(imc, NULL, &sentence_mode)) ImmSetConversionStatus(imc, mode, sentence_mode); ImmReleaseContext(w32->window, imc); } } static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { struct vo_w32_state *w32 = (void*)GetWindowLongPtrW(hWnd, GWLP_USERDATA); if (!w32) { // WM_NCCREATE is supposed to be the first message that a window // receives. It allows struct vo_w32_state to be passed from // CreateWindow's lpParam to the window procedure. However, as a // longstanding Windows bug, overlapped top-level windows will get a // WM_GETMINMAXINFO before WM_NCCREATE. This can be ignored. if (message != WM_NCCREATE) return DefWindowProcW(hWnd, message, wParam, lParam); CREATESTRUCTW *cs = (CREATESTRUCTW *)lParam; w32 = cs->lpCreateParams; w32->window = hWnd; SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LONG_PTR)w32); } // The dispatch queue should be processed as soon as possible to prevent // playback glitches, since it is likely blocking the VO thread if (!w32->in_dispatch) { w32->in_dispatch = true; mp_dispatch_queue_process(w32->dispatch, 0); w32->in_dispatch = false; } switch (message) { case WM_ERASEBKGND: if (w32->cleared || !w32->opts->border || w32->current_fs) return TRUE; break; case WM_PAINT: w32->cleared = true; signal_events(w32, VO_EVENT_EXPOSE); break; case WM_MOVE: { w32->moving = false; const int x = GET_X_LPARAM(lParam), y = GET_Y_LPARAM(lParam); OffsetRect(&w32->windowrc, x - w32->windowrc.left, y - w32->windowrc.top); // Window may intersect with new monitors (see VOCTRL_GET_DISPLAY_NAMES) signal_events(w32, VO_EVENT_WIN_STATE); update_display_info(w32); // if we moved between monitors break; } case WM_MOVING: { w32->moving = true; RECT *rc = (RECT*)lParam; // Prevent the window from being moved if the window dragging hack // is active, and the window is currently in fullscreen. if (w32->dragging && w32->current_fs) { // Temporarily disable window arrangement to prevent aero shake // from being activated. The original system setting will be restored // after the dragging hack ends. if (w32->win_arranging) { SystemParametersInfoW(SPI_SETWINARRANGING, FALSE, 0, 0); } *rc = w32->windowrc; return TRUE; } if (snap_to_screen_edges(w32, rc)) return TRUE; break; } case WM_ENTERSIZEMOVE: w32->moving = true; if (w32->snapped != 0) { // Save the cursor offset from the window borders, // so the player window can be unsnapped later RECT rc; POINT cursor; if (GetWindowRect(w32->window, &rc) && GetCursorPos(&cursor)) { w32->snap_dx = cursor.x - rc.left; w32->snap_dy = cursor.y - rc.top; } } break; case WM_EXITSIZEMOVE: w32->moving = false; break; case WM_SIZE: { const int w = LOWORD(lParam), h = HIWORD(lParam); if (w > 0 && h > 0) { w32->windowrc.right = w32->windowrc.left + w; w32->windowrc.bottom = w32->windowrc.top + h; signal_events(w32, VO_EVENT_RESIZE); MP_VERBOSE(w32, "resize window: %d:%d\n", w, h); } // Window may have been minimized, maximized or restored if (is_visible(w32->window)) { WINDOWPLACEMENT wp = { .length = sizeof wp }; GetWindowPlacement(w32->window, &wp); bool is_minimized = wp.showCmd == SW_SHOWMINIMIZED; if (w32->opts->window_minimized != is_minimized) { w32->opts->window_minimized = is_minimized; m_config_cache_write_opt(w32->opts_cache, &w32->opts->window_minimized); } bool is_maximized = wp.showCmd == SW_SHOWMAXIMIZED || (wp.showCmd == SW_SHOWMINIMIZED && (wp.flags & WPF_RESTORETOMAXIMIZED)); if (w32->opts->window_maximized != is_maximized) { w32->opts->window_maximized = is_maximized; m_config_cache_write_opt(w32->opts_cache, &w32->opts->window_maximized); } } signal_events(w32, VO_EVENT_WIN_STATE); update_display_info(w32); 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, w32->window, &r); int c_w = rect_w(r), c_h = rect_h(r); 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(w32, wParam); if (corner >= 0) corners[corner] -= d_corners[corner]; *rc = (RECT) { corners[0], corners[1], corners[2], corners[3] }; return TRUE; } break; case WM_DPICHANGED: update_display_info(w32); RECT *rc = (RECT*)lParam; w32->windowrc = *rc; subtract_window_borders(w32, w32->window, &w32->windowrc); update_window_state(w32); break; case WM_CLOSE: // Don't destroy the window yet to not lose wakeup events. mp_input_put_key(w32->input_ctx, MP_KEY_CLOSE_WIN); return 0; case WM_NCDESTROY: // Sometimes only WM_NCDESTROY is received in --wid mode case WM_DESTROY: if (w32->destroyed) break; // If terminate is not set, something else destroyed the window. This // can also happen in --wid mode when the parent window is destroyed. if (!w32->terminate) mp_input_put_key(w32->input_ctx, MP_KEY_CLOSE_WIN); RevokeDragDrop(w32->window); w32->destroyed = true; w32->window = NULL; PostQuitMessage(0); break; case WM_SYSCOMMAND: switch (wParam & 0xFFF0) { case SC_SCREENSAVE: case SC_MONITORPOWER: if (w32->disable_screensaver) { MP_VERBOSE(w32, "killing screensaver\n"); return 0; } break; case SC_RESTORE: if (IsMaximized(w32->window) && w32->current_fs) { w32->toggle_fs = true; reinit_window_state(w32); return 0; } break; } break; case WM_NCACTIVATE: // Cosmetic to remove blinking window border when initializing window if (!w32->opts->border) lParam = -1; break; case WM_NCHITTEST: // Provide sizing handles for borderless windows if ((!w32->opts->border || !w32->opts->title_bar) && !w32->current_fs) { return borderless_nchittest(w32, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)); } break; case WM_APPCOMMAND: if (handle_appcommand(w32, GET_APPCOMMAND_LPARAM(lParam))) return TRUE; 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_key_down(w32, wParam, HIWORD(lParam)); if (wParam == VK_F10) return 0; break; case WM_KEYDOWN: handle_key_down(w32, wParam, HIWORD(lParam)); 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, true)) return 0; break; case WM_UNICHAR: if (wParam == UNICODE_NOCHAR) { return TRUE; } else if (handle_char(w32, wParam, false)) { return 0; } break; case WM_KILLFOCUS: mp_input_put_key(w32->input_ctx, MP_INPUT_RELEASE_ALL); w32->focused = false; signal_events(w32, VO_EVENT_FOCUS); return 0; case WM_SETFOCUS: w32->focused = true; signal_events(w32, VO_EVENT_FOCUS); return 0; 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->track_event); 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: // 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: if (handle_mouse_down(w32, MP_MBTN_LEFT, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam))) return 0; break; case WM_LBUTTONUP: handle_mouse_up(w32, MP_MBTN_LEFT); break; case WM_MBUTTONDOWN: handle_mouse_down(w32, MP_MBTN_MID, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)); break; case WM_MBUTTONUP: handle_mouse_up(w32, MP_MBTN_MID); break; case WM_RBUTTONDOWN: handle_mouse_down(w32, MP_MBTN_RIGHT, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)); break; case WM_RBUTTONUP: handle_mouse_up(w32, MP_MBTN_RIGHT); break; case WM_MOUSEWHEEL: handle_mouse_wheel(w32, false, GET_WHEEL_DELTA_WPARAM(wParam)); return 0; case WM_MOUSEHWHEEL: handle_mouse_wheel(w32, true, GET_WHEEL_DELTA_WPARAM(wParam)); // Some buggy mouse drivers (SetPoint) stop delivering WM_MOUSEHWHEEL // events when the message loop doesn't return TRUE (even on Windows 7) return TRUE; case WM_XBUTTONDOWN: handle_mouse_down(w32, HIWORD(wParam) == 1 ? MP_MBTN_BACK : MP_MBTN_FORWARD, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)); return TRUE; case WM_XBUTTONUP: handle_mouse_up(w32, HIWORD(wParam) == 1 ? MP_MBTN_BACK : MP_MBTN_FORWARD); return TRUE; case WM_DISPLAYCHANGE: force_update_display_info(w32); break; case WM_SETTINGCHANGE: update_dark_mode(w32); break; case WM_NCCALCSIZE: if (!w32->opts->border) return 0; // Apparently removing WS_CAPTION disables some window animation, instead // just reduce non-client size to remove title bar. if (wParam && lParam && w32->opts->border && !w32->opts->title_bar && !w32->current_fs && !w32->parent) { ((LPNCCALCSIZE_PARAMS) lParam)->rgrc[0].top -= get_title_bar_height(w32); } break; case WM_IME_STARTCOMPOSITION: { HIMC imc = ImmGetContext(w32->window); if (imc) { COMPOSITIONFORM cf = {.dwStyle = CFS_POINT, .ptCurrentPos = {0, 0}}; ImmSetCompositionWindow(imc, &cf); ImmReleaseContext(w32->window, imc); } break; } case WM_CREATE: // The IME can only be changed to alphanumeric input after it's initialized. // Unfortunately, there is no way to know when this happens, as // none of the WM_CREATE, WM_INPUTLANGCHANGE, or WM_IME_* messages work. // This works if the IME is initialized within a short time after // the window is created. Otherwise, fallback to setting alphanumeric mode on // the first keypress. SetTimer(w32->window, (UINT_PTR)WM_CREATE, 250, NULL); break; case WM_TIMER: if (wParam == WM_CREATE) { // Default to alphanumeric input when the IME is first initialized. set_ime_conversion_mode(w32, IME_CMODE_ALPHANUMERIC); return 0; } break; } if (message == w32->tbtn_created_msg) { w32->tbtn_created = true; update_playback_state(w32); return 0; } return DefWindowProcW(hWnd, message, wParam, lParam); } static mp_once window_class_init_once = MP_STATIC_ONCE_INITIALIZER; static ATOM window_class; static void register_window_class(void) { window_class = RegisterClassExW(&(WNDCLASSEXW) { .cbSize = sizeof(WNDCLASSEXW), .style = CS_HREDRAW | CS_VREDRAW, .lpfnWndProc = WndProc, .hInstance = HINST_THISCOMPONENT, .hIcon = LoadIconW(HINST_THISCOMPONENT, L"IDI_ICON1"), .hCursor = LoadCursor(NULL, IDC_ARROW), .hbrBackground = (HBRUSH) GetStockObject(BLACK_BRUSH), .lpszClassName = L"mpv", }); } static ATOM get_window_class(void) { mp_exec_once(&window_class_init_once, register_window_class); return window_class; } static void resize_child_win(HWND parent) { // Check if an mpv window is a child of this window. This will not // necessarily be the case because the hook functions will run for all // windows on the parent window's thread. ATOM cls = get_window_class(); HWND child = FindWindowExW(parent, NULL, (LPWSTR)MAKEINTATOM(cls), NULL); if (!child) return; // Make sure the window was created by this instance if (GetWindowLongPtrW(child, GWLP_HINSTANCE) != (LONG_PTR)HINST_THISCOMPONENT) return; // Resize the mpv window to match its parent window's size RECT rm, rp; if (!GetClientRect(child, &rm)) return; if (!GetClientRect(parent, &rp)) return; if (EqualRect(&rm, &rp)) return; SetWindowPos(child, NULL, 0, 0, rp.right, rp.bottom, SWP_ASYNCWINDOWPOS | SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOSENDCHANGING); } static LRESULT CALLBACK parent_win_hook(int nCode, WPARAM wParam, LPARAM lParam) { if (nCode != HC_ACTION) goto done; CWPSTRUCT *cwp = (CWPSTRUCT*)lParam; if (cwp->message != WM_WINDOWPOSCHANGED) goto done; resize_child_win(cwp->hwnd); done: return CallNextHookEx(NULL, nCode, wParam, lParam); } static void CALLBACK parent_evt_hook(HWINEVENTHOOK hWinEventHook, DWORD event, HWND hwnd, LONG idObject, LONG idChild, DWORD dwEventThread, DWORD dwmsEventTime) { if (event != EVENT_OBJECT_LOCATIONCHANGE) return; if (!hwnd || idObject != OBJID_WINDOW || idChild != CHILDID_SELF) return; resize_child_win(hwnd); } static void install_parent_hook(struct vo_w32_state *w32) { DWORD pid; DWORD tid = GetWindowThreadProcessId(w32->parent, &pid); // If the parent lives inside the current process, install a Windows hook if (pid == GetCurrentProcessId()) { w32->parent_win_hook = SetWindowsHookExW(WH_CALLWNDPROC, parent_win_hook, NULL, tid); } else { // Otherwise, use a WinEvent hook. These don't seem to be as smooth as // Windows hooks, but they can be delivered across process boundaries. w32->parent_evt_hook = SetWinEventHook( EVENT_OBJECT_LOCATIONCHANGE, EVENT_OBJECT_LOCATIONCHANGE, NULL, parent_evt_hook, pid, tid, WINEVENT_OUTOFCONTEXT); } } static void remove_parent_hook(struct vo_w32_state *w32) { if (w32->parent_win_hook) UnhookWindowsHookEx(w32->parent_win_hook); if (w32->parent_evt_hook) UnhookWinEvent(w32->parent_evt_hook); } 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 (!w32->destroyed && GetMessageW(&msg, 0, 0, 0) > 0) { // Change the conversion mode on the first keypress, in case the timer // solution fails. Note that this leaves the mode indicator in the language // bar showing the original mode until a key is pressed. if (is_key_message(msg.message) && !w32->conversion_mode_init) { set_ime_conversion_mode(w32, IME_CMODE_ALPHANUMERIC); w32->conversion_mode_init = true; KillTimer(w32->window, (UINT_PTR)WM_CREATE); } // Only send IME messages to TranslateMessage if (is_key_message(msg.message) && msg.wParam == VK_PROCESSKEY) TranslateMessage(&msg); DispatchMessageW(&msg); } // 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 void gui_thread_reconfig(void *ptr) { struct vo_w32_state *w32 = ptr; struct vo *vo = w32->vo; RECT r = get_working_area(w32); // for normal window which is auto-positioned (centered), center the window // rather than the content (by subtracting the borders from the work area) if (!w32->current_fs && !IsMaximized(w32->window) && w32->opts->border && !w32->opts->geometry.xy_valid /* specific position not requested */) { subtract_window_borders(w32, w32->window, &r); } struct mp_rect screen = { r.left, r.top, r.right, r.bottom }; struct vo_win_geometry geo; RECT monrc = get_monitor_info(w32).rcMonitor; struct mp_rect mon = { monrc.left, monrc.top, monrc.right, monrc.bottom }; if (w32->dpi_scale == 0) force_update_display_info(w32); vo_calc_window_geometry3(vo, &screen, &mon, w32->dpi_scale, &geo); vo_apply_window_geometry(vo, &geo); bool reset_size = (w32->o_dwidth != vo->dwidth || w32->o_dheight != vo->dheight) && w32->opts->auto_window_resize; w32->o_dwidth = vo->dwidth; w32->o_dheight = vo->dheight; if (!w32->parent && !w32->window_bounds_initialized) { SetRect(&w32->windowrc, geo.win.x0, geo.win.y0, geo.win.x0 + vo->dwidth, geo.win.y0 + vo->dheight); w32->prev_windowrc = w32->windowrc; w32->window_bounds_initialized = true; w32->win_force_pos = geo.flags & VO_WIN_FORCE_POS; w32->fit_on_screen = !w32->win_force_pos; goto finish; } // The rect which size is going to be modified. RECT *rc = &w32->windowrc; // The desired size always matches the window size in wid mode. if (!reset_size || w32->parent) { GetClientRect(w32->window, &r); // Restore vo_dwidth and vo_dheight, which were reset in vo_config() vo->dwidth = r.right; vo->dheight = r.bottom; } else { if (w32->current_fs) rc = &w32->prev_windowrc; w32->fit_on_screen = true; } resize_and_move_rect(w32, rc, vo->dwidth, vo->dheight); finish: reinit_window_state(w32); } // Resize the window. On the first call, it's also made visible. void vo_w32_config(struct vo *vo) { struct vo_w32_state *w32 = vo->w32; mp_dispatch_run(w32->dispatch, gui_thread_reconfig, w32); } static void w32_api_load(struct vo_w32_state *w32) { HMODULE shcore_dll = LoadLibraryW(L"shcore.dll"); // Available since Win8.1 w32->api.pGetDpiForMonitor = !shcore_dll ? NULL : (void *)GetProcAddress(shcore_dll, "GetDpiForMonitor"); HMODULE user32_dll = LoadLibraryW(L"user32.dll"); // Available since Win10 w32->api.pAdjustWindowRectExForDpi = !user32_dll ? NULL : (void *)GetProcAddress(user32_dll, "AdjustWindowRectExForDpi"); // Dark mode related functions, available since the 1809 Windows 10 update // Check the Windows build version as on previous versions used ordinals // may point to unexpected code/data. Alternatively could check uxtheme.dll // version directly, but it is little bit more boilerplate code, and build // number is good enough check. void (WINAPI *pRtlGetNtVersionNumbers)(LPDWORD, LPDWORD, LPDWORD) = (void *)GetProcAddress(GetModuleHandleW(L"ntdll.dll"), "RtlGetNtVersionNumbers"); DWORD major, build; pRtlGetNtVersionNumbers(&major, NULL, &build); build &= ~0xF0000000; HMODULE uxtheme_dll = (major < 10 || build < 17763) ? NULL : GetModuleHandle(L"uxtheme.dll"); w32->api.pShouldAppsUseDarkMode = !uxtheme_dll ? NULL : (void *)GetProcAddress(uxtheme_dll, MAKEINTRESOURCEA(132)); w32->api.pSetPreferredAppMode = !uxtheme_dll ? NULL : (void *)GetProcAddress(uxtheme_dll, MAKEINTRESOURCEA(135)); } static MP_THREAD_VOID gui_thread(void *ptr) { struct vo_w32_state *w32 = ptr; bool ole_ok = false; int res = 0; mp_thread_set_name("window"); w32_api_load(w32); if (w32->opts->WinID >= 0) w32->parent = (HWND)(intptr_t)(w32->opts->WinID); ATOM cls = get_window_class(); if (w32->parent) { RECT r; GetClientRect(w32->parent, &r); CreateWindowExW(WS_EX_NOPARENTNOTIFY, (LPWSTR)MAKEINTATOM(cls), L"mpv", WS_CHILD | WS_VISIBLE, 0, 0, r.right, r.bottom, w32->parent, 0, HINST_THISCOMPONENT, w32); // Install a hook to get notifications when the parent changes size if (w32->window) install_parent_hook(w32); } else { CreateWindowExW(0, (LPWSTR)MAKEINTATOM(cls), L"mpv", update_style(w32, 0), CW_USEDEFAULT, SW_HIDE, 100, 100, 0, 0, HINST_THISCOMPONENT, w32); } if (!w32->window) { MP_ERR(w32, "unable to create window!\n"); goto done; } update_dark_mode(w32); update_corners_pref(w32); if (w32->opts->window_affinity) update_affinity(w32); if (w32->opts->backdrop_type) update_backdrop(w32); if (w32->opts->cursor_passthrough) update_cursor_passthrough(w32); if (SUCCEEDED(OleInitialize(NULL))) { ole_ok = true; IDropTarget *dt = mp_w32_droptarget_create(w32->log, w32->opts, w32->input_ctx); RegisterDragDrop(w32->window, dt); // 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; } } // ITaskbarList3 has methods for status indication on taskbar buttons, // however that interface is only available on Win7/2008 R2 or newer if (SUCCEEDED(CoCreateInstance(&CLSID_TaskbarList, NULL, CLSCTX_INPROC_SERVER, &IID_ITaskbarList3, (void**)&w32->taskbar_list3))) { if (FAILED(ITaskbarList3_HrInit(w32->taskbar_list3))) { ITaskbarList3_Release(w32->taskbar_list3); w32->taskbar_list3 = NULL; } else { w32->tbtn_created_msg = RegisterWindowMessage(L"TaskbarButtonCreated"); } } } else { MP_ERR(w32, "Failed to initialize OLE/COM\n"); } w32->tracking = FALSE; w32->track_event = (TRACKMOUSEEVENT){ .cbSize = sizeof(TRACKMOUSEEVENT), .dwFlags = TME_LEAVE, .hwndTrack = w32->window, }; if (w32->parent) EnableWindow(w32->window, 0); w32->cursor_visible = true; w32->moving = false; w32->snapped = 0; w32->snap_dx = w32->snap_dy = 0; 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"); remove_parent_hook(w32); if (w32->window && !w32->destroyed) DestroyWindow(w32->window); if (w32->taskbar_list) ITaskbarList2_Release(w32->taskbar_list); if (w32->taskbar_list3) ITaskbarList3_Release(w32->taskbar_list3); if (ole_ok) OleUninitialize(); SetThreadExecutionState(ES_CONTINUOUS); MP_THREAD_RETURN(); } bool 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_cache = m_config_cache_alloc(w32, vo->global, &vo_sub_opts), .input_ctx = vo->input_ctx, .dispatch = mp_dispatch_create(w32), }; w32->opts = w32->opts_cache->opts; vo->w32 = w32; if (mp_thread_create(&w32->thread, gui_thread, w32)) goto fail; if (!mp_rendezvous(w32, 0)) { // init barrier mp_thread_join(w32->thread); goto fail; } // While the UI runs in its own thread, the thread in which this function // runs in will be the renderer thread. Apply magic MMCSS cargo-cult, // which might stop Windows from throttling clock rate and so on. if (vo->opts->mmcss_profile[0]) { wchar_t *profile = mp_from_utf8(NULL, vo->opts->mmcss_profile); w32->avrt_handle = AvSetMmThreadCharacteristicsW(profile, &(DWORD){0}); talloc_free(profile); } return true; fail: talloc_free(w32); vo->w32 = NULL; return false; } struct disp_names_data { HMONITOR assoc; int count; char **names; }; static BOOL CALLBACK disp_names_proc(HMONITOR mon, HDC dc, LPRECT r, LPARAM p) { struct disp_names_data *data = (struct disp_names_data*)p; // get_disp_names() adds data->assoc to the list, so skip it here if (mon == data->assoc) return TRUE; MONITORINFOEXW mi = { .cbSize = sizeof mi }; if (GetMonitorInfoW(mon, (MONITORINFO*)&mi)) { MP_TARRAY_APPEND(NULL, data->names, data->count, mp_to_utf8(NULL, mi.szDevice)); } return TRUE; } static char **get_disp_names(struct vo_w32_state *w32) { // Get the client area of the window in screen space RECT rect = { 0 }; GetClientRect(w32->window, &rect); MapWindowPoints(w32->window, NULL, (POINT*)&rect, 2); struct disp_names_data data = { .assoc = w32->monitor }; // Make sure the monitor that Windows considers to be associated with the // window is first in the list MONITORINFOEXW mi = { .cbSize = sizeof mi }; if (GetMonitorInfoW(data.assoc, (MONITORINFO*)&mi)) { MP_TARRAY_APPEND(NULL, data.names, data.count, mp_to_utf8(NULL, mi.szDevice)); } // Get the names of the other monitors that intersect the client rect EnumDisplayMonitors(NULL, &rect, disp_names_proc, (LPARAM)&data); MP_TARRAY_APPEND(NULL, data.names, data.count, NULL); return data.names; } static int gui_thread_control(struct vo_w32_state *w32, int request, void *arg) { switch (request) { case VOCTRL_VO_OPTS_CHANGED: { void *changed_option; while (m_config_cache_get_next_changed(w32->opts_cache, &changed_option)) { struct mp_vo_opts *vo_opts = w32->opts_cache->opts; if (changed_option == &vo_opts->fullscreen) { reinit_window_state(w32); } else if (changed_option == &vo_opts->window_affinity) { update_affinity(w32); } else if (changed_option == &vo_opts->ontop) { update_window_state(w32); } else if (changed_option == &vo_opts->backdrop_type) { update_backdrop(w32); } else if (changed_option == &vo_opts->cursor_passthrough) { update_cursor_passthrough(w32); } else if (changed_option == &vo_opts->border || changed_option == &vo_opts->title_bar) { update_window_style(w32); update_window_state(w32); } else if (changed_option == &vo_opts->window_minimized) { update_minimized_state(w32); } else if (changed_option == &vo_opts->window_maximized) { update_maximized_state(w32); } else if (changed_option == &vo_opts->window_corners) { update_corners_pref(w32); } } return VO_TRUE; } case VOCTRL_GET_WINDOW_ID: { if (!w32->window) return VO_NOTAVAIL; *(int64_t *)arg = (intptr_t)w32->window; return VO_TRUE; } case VOCTRL_GET_HIDPI_SCALE: { *(double *)arg = w32->dpi_scale; return VO_TRUE; } case VOCTRL_GET_UNFS_WINDOW_SIZE: { int *s = arg; if (!w32->window_bounds_initialized) return VO_FALSE; RECT *rc = w32->current_fs ? &w32->prev_windowrc : &w32->windowrc; s[0] = rect_w(*rc) / w32->dpi_scale; s[1] = rect_h(*rc) / w32->dpi_scale; return VO_TRUE; } case VOCTRL_SET_UNFS_WINDOW_SIZE: { int *s = arg; if (!w32->window_bounds_initialized) return VO_FALSE; s[0] *= w32->dpi_scale; s[1] *= w32->dpi_scale; RECT *rc = w32->current_fs ? &w32->prev_windowrc : &w32->windowrc; resize_and_move_rect(w32, rc, s[0], s[1]); w32->fit_on_screen = true; reinit_window_state(w32); 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_UPDATE_PLAYBACK_STATE: { w32->current_pstate = *(struct voctrl_playback_state *)arg; update_playback_state(w32); return VO_TRUE; } case VOCTRL_GET_DISPLAY_FPS: update_display_info(w32); *(double*) arg = w32->display_fps; return VO_TRUE; case VOCTRL_GET_DISPLAY_RES: ; RECT monrc = get_monitor_info(w32).rcMonitor; ((int *)arg)[0] = monrc.right - monrc.left; ((int *)arg)[1] = monrc.bottom - monrc.top; return VO_TRUE; case VOCTRL_GET_DISPLAY_NAMES: *(char ***)arg = get_disp_names(w32); return VO_TRUE; case VOCTRL_GET_ICC_PROFILE: update_display_info(w32); if (w32->color_profile) { bstr *p = arg; *p = stream_read_file(w32->color_profile, NULL, w32->vo->global, 100000000); // 100 MB return p->len ? VO_TRUE : VO_FALSE; } return VO_FALSE; case VOCTRL_GET_FOCUSED: *(bool *)arg = w32->focused; 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 |= atomic_fetch_and(&w32->event_flags, 0); // Safe access, since caller (owner of vo) is blocked. if (*events & VO_EVENT_RESIZE) { w32->vo->dwidth = rect_w(w32->windowrc); w32->vo->dheight = rect_h(w32->windowrc); } } int vo_w32_control(struct vo *vo, int *events, int request, void *arg) { struct vo_w32_state *w32 = vo->w32; if (request == VOCTRL_CHECK_EVENTS) { *events |= atomic_fetch_and(&w32->event_flags, 0); if (*events & VO_EVENT_RESIZE) { mp_dispatch_lock(w32->dispatch); vo->dwidth = rect_w(w32->windowrc); vo->dheight = rect_h(w32->windowrc); mp_dispatch_unlock(w32->dispatch); } return VO_TRUE; } else { 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); mp_dispatch_interrupt(w32->dispatch); } 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); mp_thread_join(w32->thread); AvRevertMmThreadCharacteristics(w32->avrt_handle); 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); } void vo_w32_set_transparency(struct vo *vo, bool enable) { struct vo_w32_state *w32 = vo->w32; if (w32->parent) return; DWM_BLURBEHIND dbb = {0}; if (enable) { HRGN rgn = CreateRectRgn(0, 0, -1, -1); dbb.dwFlags = DWM_BB_ENABLE | DWM_BB_BLURREGION; dbb.hRgnBlur = rgn; dbb.fEnable = TRUE; DwmEnableBlurBehindWindow(w32->window, &dbb); DeleteObject(rgn); } else { dbb.dwFlags = DWM_BB_ENABLE; dbb.fEnable = FALSE; DwmEnableBlurBehindWindow(w32->window, &dbb); } }