1 files changed, 314 insertions, 44 deletions

diff --git a/platform/linuxbsd/x11/display_server_x11.cpp b/platform/linuxbsd/x11/display_server_x11.cpp
index 897a6438d2..55c637fc93 100644
--- a/platform/linuxbsd/x11/display_server_x11.cpp
+++ b/platform/linuxbsd/x11/display_server_x11.cpp
@@ -39,6 +39,7 @@
 #include "core/math/math_funcs.h"
 #include "core/string/print_string.h"
 #include "core/string/ustring.h"
+#include "drivers/png/png_driver_common.h"
 #include "main/main.h"
 #include "scene/resources/atlas_texture.h"
 
@@ -364,14 +365,14 @@ bool DisplayServerX11::is_dark_mode() const {
 }
 
 Error DisplayServerX11::file_dialog_show(const String &p_title, const String &p_current_directory, const String &p_filename, bool p_show_hidden, FileDialogMode p_mode, const Vector<String> &p_filters, const Callable &p_callback) {
-	WindowID window_id = _get_focused_window_or_popup();
+	WindowID window_id = last_focused_window;
 
 	if (!windows.has(window_id)) {
 		window_id = MAIN_WINDOW_ID;
 	}
 
 	String xid = vformat("x11:%x", (uint64_t)windows[window_id].x11_window);
-	return portal_desktop->file_dialog_show(xid, p_title, p_current_directory, p_filename, p_mode, p_filters, p_callback);
+	return portal_desktop->file_dialog_show(last_focused_window, xid, p_title, p_current_directory, p_filename, p_mode, p_filters, p_callback);
 }
 
 #endif
@@ -519,7 +520,7 @@ Bool DisplayServerX11::_predicate_clipboard_selection(Display *display, XEvent *
 }
 
 Bool DisplayServerX11::_predicate_clipboard_incr(Display *display, XEvent *event, XPointer arg) {
-	if (event->type == PropertyNotify && event->xproperty.state == PropertyNewValue) {
+	if (event->type == PropertyNotify && event->xproperty.state == PropertyNewValue && event->xproperty.atom == *(Atom *)arg) {
 		return True;
 	} else {
 		return False;
@@ -593,7 +594,7 @@ String DisplayServerX11::_clipboard_get_impl(Atom p_source, Window x11_window, A
 
 				// Non-blocking wait for next event and remove it from the queue.
 				XEvent ev;
-				while (XCheckIfEvent(x11_display, &ev, _predicate_clipboard_incr, nullptr)) {
+				while (XCheckIfEvent(x11_display, &ev, _predicate_clipboard_incr, (XPointer)&selection)) {
 					result = XGetWindowProperty(x11_display, x11_window,
 							selection, // selection type
 							0, LONG_MAX, // offset - len
@@ -664,6 +665,74 @@ String DisplayServerX11::_clipboard_get_impl(Atom p_source, Window x11_window, A
 	return ret;
 }
 
+Atom DisplayServerX11::_clipboard_get_image_target(Atom p_source, Window x11_window) const {
+	Atom target = XInternAtom(x11_display, "TARGETS", 0);
+	Atom png = XInternAtom(x11_display, "image/png", 0);
+	Atom *valid_targets = nullptr;
+	unsigned long atom_count = 0;
+
+	Window selection_owner = XGetSelectionOwner(x11_display, p_source);
+	if (selection_owner != None && selection_owner != x11_window) {
+		// Block events polling while processing selection events.
+		MutexLock mutex_lock(events_mutex);
+
+		Atom selection = XA_PRIMARY;
+		XConvertSelection(x11_display, p_source, target, selection, x11_window, CurrentTime);
+
+		XFlush(x11_display);
+
+		// Blocking wait for predicate to be True and remove the event from the queue.
+		XEvent event;
+		XIfEvent(x11_display, &event, _predicate_clipboard_selection, (XPointer)&x11_window);
+		// Do not get any data, see how much data is there.
+		Atom type;
+		int format, result;
+		unsigned long len, bytes_left, dummy;
+		XGetWindowProperty(x11_display, x11_window,
+				selection, // Tricky..
+				0, 0, // offset - len
+				0, // Delete 0==FALSE
+				XA_ATOM, // flag
+				&type, // return type
+				&format, // return format
+				&len, &bytes_left, // data length
+				(unsigned char **)&valid_targets);
+
+		if (valid_targets) {
+			XFree(valid_targets);
+			valid_targets = nullptr;
+		}
+
+		if (type == XA_ATOM && bytes_left > 0) {
+			// Data is ready and can be processed all at once.
+			result = XGetWindowProperty(x11_display, x11_window,
+					selection, 0, bytes_left / 4, 0,
+					XA_ATOM, &type, &format,
+					&len, &dummy, (unsigned char **)&valid_targets);
+			if (result == Success) {
+				atom_count = len;
+			} else {
+				print_verbose("Failed to get selection data.");
+				return None;
+			}
+		} else {
+			return None;
+		}
+	} else {
+		return None;
+	}
+	for (unsigned long i = 0; i < atom_count; i++) {
+		Atom atom = valid_targets[i];
+		if (atom == png) {
+			XFree(valid_targets);
+			return png;
+		}
+	}
+
+	XFree(valid_targets);
+	return None;
+}
+
 String DisplayServerX11::_clipboard_get(Atom p_source, Window x11_window) const {
 	String ret;
 	Atom utf8_atom = XInternAtom(x11_display, "UTF8_STRING", True);
@@ -702,6 +771,158 @@ String DisplayServerX11::clipboard_get_primary() const {
 	return ret;
 }
 
+Ref<Image> DisplayServerX11::clipboard_get_image() const {
+	_THREAD_SAFE_METHOD_
+	Atom clipboard = XInternAtom(x11_display, "CLIPBOARD", 0);
+	Window x11_window = windows[MAIN_WINDOW_ID].x11_window;
+	Ref<Image> ret;
+	Atom target = _clipboard_get_image_target(clipboard, x11_window);
+	if (target == None) {
+		return ret;
+	}
+
+	Window selection_owner = XGetSelectionOwner(x11_display, clipboard);
+
+	if (selection_owner != None && selection_owner != x11_window) {
+		// Block events polling while processing selection events.
+		MutexLock mutex_lock(events_mutex);
+
+		// Identifier for the property the other window
+		// will send the converted data to.
+		Atom transfer_prop = XA_PRIMARY;
+		XConvertSelection(x11_display,
+				clipboard, // source selection
+				target, // format to convert to
+				transfer_prop, // output property
+				x11_window, CurrentTime);
+
+		XFlush(x11_display);
+
+		// Blocking wait for predicate to be True and remove the event from the queue.
+		XEvent event;
+		XIfEvent(x11_display, &event, _predicate_clipboard_selection, (XPointer)&x11_window);
+
+		// Do not get any data, see how much data is there.
+		Atom type;
+		int format, result;
+		unsigned long len, bytes_left, dummy;
+		unsigned char *data;
+		XGetWindowProperty(x11_display, x11_window,
+				transfer_prop, // Property data is transferred through
+				0, 1, // offset, len (4 so we can get the size if INCR is used)
+				0, // Delete 0==FALSE
+				AnyPropertyType, // flag
+				&type, // return type
+				&format, // return format
+				&len, &bytes_left, // data length
+				&data);
+
+		if (type == XInternAtom(x11_display, "INCR", 0)) {
+			ERR_FAIL_COND_V_MSG(len != 1, ret, "Incremental transfer initial value was not length.");
+
+			// Data is going to be received incrementally.
+			DEBUG_LOG_X11("INCR selection started.\n");
+
+			LocalVector<uint8_t> incr_data;
+			uint32_t data_size = 0;
+			bool success = false;
+
+			// Initial response is the lower bound of the length of the transferred data.
+			incr_data.resize(*(unsigned long *)data);
+			XFree(data);
+			data = nullptr;
+
+			// Delete INCR property to notify the owner.
+			XDeleteProperty(x11_display, x11_window, transfer_prop);
+
+			// Process events from the queue.
+			bool done = false;
+			while (!done) {
+				if (!_wait_for_events()) {
+					// Error or timeout, abort.
+					break;
+				}
+				// Non-blocking wait for next event and remove it from the queue.
+				XEvent ev;
+				while (XCheckIfEvent(x11_display, &ev, _predicate_clipboard_incr, (XPointer)&transfer_prop)) {
+					result = XGetWindowProperty(x11_display, x11_window,
+							transfer_prop, // output property
+							0, LONG_MAX, // offset - len
+							True, // delete property to notify the owner
+							AnyPropertyType, // flag
+							&type, // return type
+							&format, // return format
+							&len, &bytes_left, // data length
+							&data);
+
+					DEBUG_LOG_X11("PropertyNotify: len=%lu, format=%i\n", len, format);
+
+					if (result == Success) {
+						if (data && (len > 0)) {
+							uint32_t prev_size = incr_data.size();
+							// New chunk, resize to be safe and append data.
+							incr_data.resize(MAX(data_size + len, prev_size));
+							memcpy(incr_data.ptr() + data_size, data, len);
+							data_size += len;
+						} else if (!(format == 0 && len == 0)) {
+							// For unclear reasons the first GetWindowProperty always returns a length and format of 0.
+							// Otherwise, last chunk, process finished.
+							done = true;
+							success = true;
+						}
+					} else {
+						print_verbose("Failed to get selection data chunk.");
+						done = true;
+					}
+
+					if (data) {
+						XFree(data);
+						data = nullptr;
+					}
+
+					if (done) {
+						break;
+					}
+				}
+			}
+
+			if (success && (data_size > 0)) {
+				ret.instantiate();
+				PNGDriverCommon::png_to_image(incr_data.ptr(), incr_data.size(), false, ret);
+			}
+		} else if (bytes_left > 0) {
+			if (data) {
+				XFree(data);
+				data = nullptr;
+			}
+			// Data is ready and can be processed all at once.
+			result = XGetWindowProperty(x11_display, x11_window,
+					transfer_prop, 0, bytes_left + 4, 0,
+					AnyPropertyType, &type, &format,
+					&len, &dummy, &data);
+			if (result == Success) {
+				ret.instantiate();
+				PNGDriverCommon::png_to_image((uint8_t *)data, bytes_left, false, ret);
+			} else {
+				print_verbose("Failed to get selection data.");
+			}
+
+			if (data) {
+				XFree(data);
+			}
+		}
+	}
+
+	return ret;
+}
+
+bool DisplayServerX11::clipboard_has_image() const {
+	Atom target = _clipboard_get_image_target(
+			XInternAtom(x11_display, "CLIPBOARD", 0),
+			windows[MAIN_WINDOW_ID].x11_window);
+	return target != None;
+}
+
 Bool DisplayServerX11::_predicate_clipboard_save_targets(Display *display, XEvent *event, XPointer arg) {
 	if (event->xany.window == *(Window *)arg) {
 		return (event->type == SelectionRequest) ||
@@ -1350,7 +1571,7 @@ float DisplayServerX11::screen_get_refresh_rate(int p_screen) const {
 
 	//Use xrandr to get screen refresh rate.
 	if (xrandr_ext_ok) {
-		XRRScreenResources *screen_info = XRRGetScreenResources(x11_display, windows[MAIN_WINDOW_ID].x11_window);
+		XRRScreenResources *screen_info = XRRGetScreenResourcesCurrent(x11_display, windows[MAIN_WINDOW_ID].x11_window);
 		if (screen_info) {
 			RRMode current_mode = 0;
 			xrr_monitor_info *monitors = nullptr;
@@ -1495,6 +1716,9 @@ void DisplayServerX11::delete_sub_window(WindowID p_id) {
 	if (gl_manager) {
 		gl_manager->window_destroy(p_id);
 	}
+	if (gl_manager_egl) {
+		gl_manager_egl->window_destroy(p_id);
+	}
 #endif
 
 	if (wd.xic) {
@@ -1534,6 +1758,9 @@ int64_t DisplayServerX11::window_get_native_handle(HandleType p_handle_type, Win
 			if (gl_manager) {
 				return (int64_t)gl_manager->get_glx_context(p_window);
 			}
+			if (gl_manager_egl) {
+				return (int64_t)gl_manager_egl->get_context(p_window);
+			}
 			return 0;
 		}
 #endif
@@ -1711,6 +1938,9 @@ void DisplayServerX11::gl_window_make_current(DisplayServer::WindowID p_window_i
 	if (gl_manager) {
 		gl_manager->window_make_current(p_window_id);
 	}
+	if (gl_manager_egl) {
+		gl_manager_egl->window_make_current(p_window_id);
+	}
 #endif
 }
 
@@ -2012,6 +2242,9 @@ void DisplayServerX11::window_set_size(const Size2i p_size, WindowID p_window) {
 	if (gl_manager) {
 		gl_manager->window_resize(p_window, xwa.width, xwa.height);
 	}
+	if (gl_manager_egl) {
+		gl_manager_egl->window_resize(p_window, xwa.width, xwa.height);
+	}
 #endif
 }
 
@@ -2862,7 +3095,7 @@ void DisplayServerX11::cursor_set_custom_image(const Ref<Resource> &p_cursor, Cu
 			*(cursor_image->pixels + index) = image->get_pixel(column_index, row_index).to_argb32();
 		}
 
-		ERR_FAIL_COND(cursor_image->pixels == nullptr);
+		ERR_FAIL_NULL(cursor_image->pixels);
 
 		// Save it for a further usage
 		cursors[p_shape] = XcursorImageLoadCursor(x11_display, cursor_image);
@@ -3721,17 +3954,13 @@ void DisplayServerX11::_window_changed(XEvent *event) {
 	if (gl_manager) {
 		gl_manager->window_resize(window_id, wd.size.width, wd.size.height);
 	}
+	if (gl_manager_egl) {
+		gl_manager_egl->window_resize(window_id, wd.size.width, wd.size.height);
+	}
 #endif
 
-	if (!wd.rect_changed_callback.is_null()) {
-		Rect2i r = new_rect;
-
-		Variant rect = r;
-
-		Variant *rectp = &rect;
-		Variant ret;
-		Callable::CallError ce;
-		wd.rect_changed_callback.callp((const Variant **)&rectp, 1, ret, ce);
+	if (wd.rect_changed_callback.is_valid()) {
+		wd.rect_changed_callback.call(new_rect);
 	}
 }
 
@@ -3749,11 +3978,6 @@ void DisplayServerX11::_dispatch_input_events(const Ref<InputEvent> &p_event) {
 }
 
 void DisplayServerX11::_dispatch_input_event(const Ref<InputEvent> &p_event) {
-	Variant ev = p_event;
-	Variant *evp = &ev;
-	Variant ret;
-	Callable::CallError ce;
-
 	{
 		List<WindowID>::Element *E = popup_list.back();
 		if (E && Object::cast_to<InputEventKey>(*p_event)) {
@@ -3761,7 +3985,7 @@ void DisplayServerX11::_dispatch_input_event(const Ref<InputEvent> &p_event) {
 			if (windows.has(E->get())) {
 				Callable callable = windows[E->get()].input_event_callback;
 				if (callable.is_valid()) {
-					callable.callp((const Variant **)&evp, 1, ret, ce);
+					callable.call(p_event);
 				}
 			}
 			return;
@@ -3774,7 +3998,7 @@ void DisplayServerX11::_dispatch_input_event(const Ref<InputEvent> &p_event) {
 		if (windows.has(event_from_window->get_window_id())) {
 			Callable callable = windows[event_from_window->get_window_id()].input_event_callback;
 			if (callable.is_valid()) {
-				callable.callp((const Variant **)&evp, 1, ret, ce);
+				callable.call(p_event);
 			}
 		}
 	} else {
@@ -3782,19 +4006,16 @@ void DisplayServerX11::_dispatch_input_event(const Ref<InputEvent> &p_event) {
 		for (KeyValue<WindowID, WindowData> &E : windows) {
 			Callable callable = E.value.input_event_callback;
 			if (callable.is_valid()) {
-				callable.callp((const Variant **)&evp, 1, ret, ce);
+				callable.call(p_event);
 			}
 		}
 	}
 }
 
 void DisplayServerX11::_send_window_event(const WindowData &wd, WindowEvent p_event) {
-	if (!wd.event_callback.is_null()) {
+	if (wd.event_callback.is_valid()) {
 		Variant event = int(p_event);
-		Variant *eventp = &event;
-		Variant ret;
-		Callable::CallError ce;
-		wd.event_callback.callp((const Variant **)&eventp, 1, ret, ce);
+		wd.event_callback.call(event);
 	}
 }
 
@@ -4085,9 +4306,6 @@ void DisplayServerX11::process_events() {
 		if (XGetEventData(x11_display, &event.xcookie)) {
 			if (event.xcookie.type == GenericEvent && event.xcookie.extension == xi.opcode) {
 				XIDeviceEvent *event_data = (XIDeviceEvent *)event.xcookie.data;
-				int index = event_data->detail;
-				Vector2 pos = Vector2(event_data->event_x, event_data->event_y);
-
 				switch (event_data->evtype) {
 					case XI_HierarchyChanged:
 					case XI_DeviceChanged: {
@@ -4204,6 +4422,9 @@ void DisplayServerX11::process_events() {
 						}
 						bool is_begin = event_data->evtype == XI_TouchBegin;
 
+						int index = event_data->detail;
+						Vector2 pos = Vector2(event_data->event_x, event_data->event_y);
+
 						Ref<InputEventScreenTouch> st;
 						st.instantiate();
 						st->set_window_id(window_id);
@@ -4235,6 +4456,10 @@ void DisplayServerX11::process_events() {
 						if (ime_window_event || ignore_events) {
 							break;
 						}
+
+						int index = event_data->detail;
+						Vector2 pos = Vector2(event_data->event_x, event_data->event_y);
+
 						HashMap<int, Vector2>::Iterator curr_pos_elem = xi.state.find(index);
 						if (!curr_pos_elem) { // Defensive
 							break;
@@ -4739,11 +4964,7 @@ void DisplayServerX11::process_events() {
 					}
 
 					if (!windows[window_id].drop_files_callback.is_null()) {
-						Variant v = files;
-						Variant *vp = &v;
-						Variant ret;
-						Callable::CallError ce;
-						windows[window_id].drop_files_callback.callp((const Variant **)&vp, 1, ret, ce);
+						windows[window_id].drop_files_callback.call(files);
 					}
 
 					//Reply that all is well.
@@ -4855,6 +5076,9 @@ void DisplayServerX11::release_rendering_thread() {
 	if (gl_manager) {
 		gl_manager->release_current();
 	}
+	if (gl_manager_egl) {
+		gl_manager_egl->release_current();
+	}
 #endif
 }
 
@@ -4863,6 +5087,9 @@ void DisplayServerX11::make_rendering_thread() {
 	if (gl_manager) {
 		gl_manager->make_current();
 	}
+	if (gl_manager_egl) {
+		gl_manager_egl->make_current();
+	}
 #endif
 }
 
@@ -4871,6 +5098,9 @@ void DisplayServerX11::swap_buffers() {
 	if (gl_manager) {
 		gl_manager->swap_buffers();
 	}
+	if (gl_manager_egl) {
+		gl_manager_egl->swap_buffers();
+	}
 #endif
 }
 
@@ -5024,6 +5254,9 @@ void DisplayServerX11::window_set_vsync_mode(DisplayServer::VSyncMode p_vsync_mo
 	if (gl_manager) {
 		gl_manager->set_use_vsync(p_vsync_mode != DisplayServer::VSYNC_DISABLED);
 	}
+	if (gl_manager_egl) {
+		gl_manager_egl->set_use_vsync(p_vsync_mode != DisplayServer::VSYNC_DISABLED);
+	}
 #endif
 }
 
@@ -5038,6 +5271,9 @@ DisplayServer::VSyncMode DisplayServerX11::window_get_vsync_mode(WindowID p_wind
 	if (gl_manager) {
 		return gl_manager->is_using_vsync() ? DisplayServer::VSYNC_ENABLED : DisplayServer::VSYNC_DISABLED;
 	}
+	if (gl_manager_egl) {
+		return gl_manager_egl->is_using_vsync() ? DisplayServer::VSYNC_ENABLED : DisplayServer::VSYNC_DISABLED;
+	}
 #endif
 	return DisplayServer::VSYNC_ENABLED;
 }
@@ -5050,6 +5286,7 @@ Vector<String> DisplayServerX11::get_rendering_drivers_func() {
 #endif
 #ifdef GLES3_ENABLED
 	drivers.push_back("opengl3");
+	drivers.push_back("opengl3_es");
 #endif
 
 	return drivers;
@@ -5092,6 +5329,21 @@ DisplayServerX11::WindowID DisplayServerX11::_create_window(WindowMode p_mode, V
 		ERR_FAIL_COND_V_MSG(err != OK, INVALID_WINDOW_ID, "Can't acquire visual info from display.");
 		vi_selected = true;
 	}
+	if (gl_manager_egl) {
+		XVisualInfo visual_info_template;
+		int visual_id = gl_manager_egl->display_get_native_visual_id(x11_display);
+		ERR_FAIL_COND_V_MSG(visual_id < 0, INVALID_WINDOW_ID, "Unable to get a visual id.");
+
+		visual_info_template.visualid = (VisualID)visual_id;
+
+		int number_of_visuals = 0;
+		XVisualInfo *vi_list = XGetVisualInfo(x11_display, VisualIDMask, &visual_info_template, &number_of_visuals);
+		ERR_FAIL_COND_V(number_of_visuals <= 0, INVALID_WINDOW_ID);
+
+		visualInfo = vi_list[0];
+
+		XFree(vi_list);
+	}
 #endif
 
 	if (!vi_selected) {
@@ -5364,8 +5616,12 @@ DisplayServerX11::WindowID DisplayServerX11::_create_window(WindowMode p_mode, V
 		if (gl_manager) {
 			Error err = gl_manager->window_create(id, wd.x11_window, x11_display, win_rect.size.width, win_rect.size.height);
 			ERR_FAIL_COND_V_MSG(err != OK, INVALID_WINDOW_ID, "Can't create an OpenGL window");
-			window_set_vsync_mode(p_vsync_mode, id);
 		}
+		if (gl_manager_egl) {
+			Error err = gl_manager_egl->window_create(id, x11_display, &wd.x11_window, win_rect.size.width, win_rect.size.height);
+			ERR_FAIL_COND_V_MSG(err != OK, INVALID_WINDOW_ID, "Failed to create an OpenGLES window.");
+		}
+		window_set_vsync_mode(p_vsync_mode, id);
 #endif
 
 		//set_class_hint(x11_display, wd.x11_window);
@@ -5766,7 +6022,7 @@ DisplayServerX11::DisplayServerX11(const String &p_rendering_driver, WindowMode
 #endif
 	// Initialize context and rendering device.
 #if defined(GLES3_ENABLED)
-	if (rendering_driver == "opengl3") {
+	if (rendering_driver == "opengl3" || rendering_driver == "opengl3_es") {
 		if (getenv("DRI_PRIME") == nullptr) {
 			int use_prime = -1;
 
@@ -5807,7 +6063,8 @@ DisplayServerX11::DisplayServerX11(const String &p_rendering_driver, WindowMode
 				setenv("DRI_PRIME", "1", 1);
 			}
 		}
-
+	}
+	if (rendering_driver == "opengl3") {
 		GLManager_X11::ContextType opengl_api_type = GLManager_X11::GLES_3_0_COMPATIBLE;
 
 		gl_manager = memnew(GLManager_X11(p_resolution, opengl_api_type));
@@ -5820,14 +6077,20 @@ DisplayServerX11::DisplayServerX11(const String &p_rendering_driver, WindowMode
 		}
 		driver_found = true;
 
-		if (true) {
-			RasterizerGLES3::make_current(true);
-		} else {
-			memdelete(gl_manager);
-			gl_manager = nullptr;
+		RasterizerGLES3::make_current(true);
+	}
+	if (rendering_driver == "opengl3_es") {
+		gl_manager_egl = memnew(GLManagerEGL_X11);
+
+		if (gl_manager_egl->initialize() != OK) {
+			memdelete(gl_manager_egl);
+			gl_manager_egl = nullptr;
 			r_error = ERR_UNAVAILABLE;
 			return;
 		}
+		driver_found = true;
+
+		RasterizerGLES3::make_current(false);
 	}
 #endif
 	if (!driver_found) {
@@ -6044,6 +6307,9 @@ DisplayServerX11::~DisplayServerX11() {
 		if (gl_manager) {
 			gl_manager->window_destroy(E.key);
 		}
+		if (gl_manager_egl) {
+			gl_manager_egl->window_destroy(E.key);
+		}
 #endif
 
 		WindowData &wd = E.value;
@@ -6094,6 +6360,10 @@ DisplayServerX11::~DisplayServerX11() {
 		memdelete(gl_manager);
 		gl_manager = nullptr;
 	}
+	if (gl_manager_egl) {
+		memdelete(gl_manager_egl);
+		gl_manager_egl = nullptr;
+	}
 #endif
 
 	if (xrandr_handle) {