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virtualx-engine/platform/linuxbsd/display_server_x11.cpp

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/*************************************************************************/
/* display_server_x11.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "display_server_x11.h"
#ifdef X11_ENABLED
#include "core/config/project_settings.h"
#include "core/math/math_funcs.h"
#include "core/string/print_string.h"
#include "core/string/ustring.h"
#include "detect_prime_x11.h"
#include "key_mapping_x11.h"
#include "main/main.h"
#include "scene/resources/texture.h"
#if defined(VULKAN_ENABLED)
#include "servers/rendering/renderer_rd/renderer_compositor_rd.h"
#endif
#if defined(GLES3_ENABLED)
#include "drivers/gles3/rasterizer_gles3.h"
#endif
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#include <X11/extensions/Xinerama.h>
#include <X11/extensions/shape.h>
// ICCCM
#define WM_NormalState 1L // window normal state
#define WM_IconicState 3L // window minimized
// EWMH
#define _NET_WM_STATE_REMOVE 0L // remove/unset property
#define _NET_WM_STATE_ADD 1L // add/set property
#include <dlfcn.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
//stupid linux.h
#ifdef KEY_TAB
#undef KEY_TAB
#endif
#undef CursorShape
#include <X11/XKBlib.h>
// 2.2 is the first release with multitouch
#define XINPUT_CLIENT_VERSION_MAJOR 2
#define XINPUT_CLIENT_VERSION_MINOR 2
#define VALUATOR_ABSX 0
#define VALUATOR_ABSY 1
#define VALUATOR_PRESSURE 2
#define VALUATOR_TILTX 3
#define VALUATOR_TILTY 4
//#define DISPLAY_SERVER_X11_DEBUG_LOGS_ENABLED
#ifdef DISPLAY_SERVER_X11_DEBUG_LOGS_ENABLED
#define DEBUG_LOG_X11(...) printf(__VA_ARGS__)
#else
#define DEBUG_LOG_X11(...)
#endif
static const double abs_resolution_mult = 10000.0;
static const double abs_resolution_range_mult = 10.0;
// Hints for X11 fullscreen
struct Hints {
unsigned long flags = 0;
unsigned long functions = 0;
unsigned long decorations = 0;
long inputMode = 0;
unsigned long status = 0;
};
static String get_atom_name(Display *p_disp, Atom p_atom) {
char *name = XGetAtomName(p_disp, p_atom);
ERR_FAIL_NULL_V_MSG(name, String(), "Atom is invalid.");
String ret;
ret.parse_utf8(name);
XFree(name);
return ret;
}
bool DisplayServerX11::has_feature(Feature p_feature) const {
switch (p_feature) {
case FEATURE_SUBWINDOWS:
#ifdef TOUCH_ENABLED
case FEATURE_TOUCHSCREEN:
#endif
case FEATURE_MOUSE:
case FEATURE_MOUSE_WARP:
case FEATURE_CLIPBOARD:
case FEATURE_CURSOR_SHAPE:
case FEATURE_CUSTOM_CURSOR_SHAPE:
case FEATURE_IME:
case FEATURE_WINDOW_TRANSPARENCY:
//case FEATURE_HIDPI:
case FEATURE_ICON:
case FEATURE_NATIVE_ICON:
case FEATURE_SWAP_BUFFERS:
#ifdef DBUS_ENABLED
case FEATURE_KEEP_SCREEN_ON:
#endif
case FEATURE_CLIPBOARD_PRIMARY:
case FEATURE_TEXT_TO_SPEECH:
return true;
default: {
}
}
return false;
}
String DisplayServerX11::get_name() const {
return "X11";
}
void DisplayServerX11::_update_real_mouse_position(const WindowData &wd) {
Window root_return, child_return;
int root_x, root_y, win_x, win_y;
unsigned int mask_return;
Bool xquerypointer_result = XQueryPointer(x11_display, wd.x11_window, &root_return, &child_return, &root_x, &root_y,
&win_x, &win_y, &mask_return);
if (xquerypointer_result) {
if (win_x > 0 && win_y > 0 && win_x <= wd.size.width && win_y <= wd.size.height) {
last_mouse_pos.x = win_x;
last_mouse_pos.y = win_y;
last_mouse_pos_valid = true;
Input::get_singleton()->set_mouse_position(last_mouse_pos);
}
}
}
bool DisplayServerX11::_refresh_device_info() {
int event_base, error_base;
print_verbose("XInput: Refreshing devices.");
if (!XQueryExtension(x11_display, "XInputExtension", &xi.opcode, &event_base, &error_base)) {
print_verbose("XInput extension not available. Please upgrade your distribution.");
return false;
}
int xi_major_query = XINPUT_CLIENT_VERSION_MAJOR;
int xi_minor_query = XINPUT_CLIENT_VERSION_MINOR;
if (XIQueryVersion(x11_display, &xi_major_query, &xi_minor_query) != Success) {
print_verbose(vformat("XInput 2 not available (server supports %d.%d).", xi_major_query, xi_minor_query));
xi.opcode = 0;
return false;
}
if (xi_major_query < XINPUT_CLIENT_VERSION_MAJOR || (xi_major_query == XINPUT_CLIENT_VERSION_MAJOR && xi_minor_query < XINPUT_CLIENT_VERSION_MINOR)) {
print_verbose(vformat("XInput %d.%d not available (server supports %d.%d). Touch input unavailable.",
XINPUT_CLIENT_VERSION_MAJOR, XINPUT_CLIENT_VERSION_MINOR, xi_major_query, xi_minor_query));
}
xi.absolute_devices.clear();
xi.touch_devices.clear();
int dev_count;
XIDeviceInfo *info = XIQueryDevice(x11_display, XIAllDevices, &dev_count);
for (int i = 0; i < dev_count; i++) {
XIDeviceInfo *dev = &info[i];
if (!dev->enabled) {
continue;
}
if (!(dev->use == XIMasterPointer || dev->use == XIFloatingSlave)) {
continue;
}
bool direct_touch = false;
bool absolute_mode = false;
int resolution_x = 0;
int resolution_y = 0;
double abs_x_min = 0;
double abs_x_max = 0;
double abs_y_min = 0;
double abs_y_max = 0;
double pressure_min = 0;
double pressure_max = 0;
double tilt_x_min = 0;
double tilt_x_max = 0;
double tilt_y_min = 0;
double tilt_y_max = 0;
for (int j = 0; j < dev->num_classes; j++) {
#ifdef TOUCH_ENABLED
if (dev->classes[j]->type == XITouchClass && ((XITouchClassInfo *)dev->classes[j])->mode == XIDirectTouch) {
direct_touch = true;
}
#endif
if (dev->classes[j]->type == XIValuatorClass) {
XIValuatorClassInfo *class_info = (XIValuatorClassInfo *)dev->classes[j];
if (class_info->number == VALUATOR_ABSX && class_info->mode == XIModeAbsolute) {
resolution_x = class_info->resolution;
abs_x_min = class_info->min;
abs_x_max = class_info->max;
absolute_mode = true;
} else if (class_info->number == VALUATOR_ABSY && class_info->mode == XIModeAbsolute) {
resolution_y = class_info->resolution;
abs_y_min = class_info->min;
abs_y_max = class_info->max;
absolute_mode = true;
} else if (class_info->number == VALUATOR_PRESSURE && class_info->mode == XIModeAbsolute) {
pressure_min = class_info->min;
pressure_max = class_info->max;
} else if (class_info->number == VALUATOR_TILTX && class_info->mode == XIModeAbsolute) {
tilt_x_min = class_info->min;
tilt_x_max = class_info->max;
} else if (class_info->number == VALUATOR_TILTY && class_info->mode == XIModeAbsolute) {
tilt_y_min = class_info->min;
tilt_y_max = class_info->max;
}
}
}
if (direct_touch) {
xi.touch_devices.push_back(dev->deviceid);
print_verbose("XInput: Using touch device: " + String(dev->name));
}
if (absolute_mode) {
// If no resolution was reported, use the min/max ranges.
if (resolution_x <= 0) {
resolution_x = (abs_x_max - abs_x_min) * abs_resolution_range_mult;
}
if (resolution_y <= 0) {
resolution_y = (abs_y_max - abs_y_min) * abs_resolution_range_mult;
}
xi.absolute_devices[dev->deviceid] = Vector2(abs_resolution_mult / resolution_x, abs_resolution_mult / resolution_y);
print_verbose("XInput: Absolute pointing device: " + String(dev->name));
}
xi.pressure = 0;
xi.pen_pressure_range[dev->deviceid] = Vector2(pressure_min, pressure_max);
xi.pen_tilt_x_range[dev->deviceid] = Vector2(tilt_x_min, tilt_x_max);
xi.pen_tilt_y_range[dev->deviceid] = Vector2(tilt_y_min, tilt_y_max);
}
XIFreeDeviceInfo(info);
#ifdef TOUCH_ENABLED
if (!xi.touch_devices.size()) {
print_verbose("XInput: No touch devices found.");
}
#endif
return true;
}
void DisplayServerX11::_flush_mouse_motion() {
// Block events polling while flushing motion events.
MutexLock mutex_lock(events_mutex);
for (uint32_t event_index = 0; event_index < polled_events.size(); ++event_index) {
XEvent &event = polled_events[event_index];
if (XGetEventData(x11_display, &event.xcookie) && event.xcookie.type == GenericEvent && event.xcookie.extension == xi.opcode) {
XIDeviceEvent *event_data = (XIDeviceEvent *)event.xcookie.data;
if (event_data->evtype == XI_RawMotion) {
XFreeEventData(x11_display, &event.xcookie);
polled_events.remove_at(event_index--);
continue;
}
XFreeEventData(x11_display, &event.xcookie);
break;
}
}
xi.relative_motion.x = 0;
xi.relative_motion.y = 0;
}
#ifdef SPEECHD_ENABLED
bool DisplayServerX11::tts_is_speaking() const {
ERR_FAIL_COND_V(!tts, false);
return tts->is_speaking();
}
bool DisplayServerX11::tts_is_paused() const {
ERR_FAIL_COND_V(!tts, false);
return tts->is_paused();
}
Array DisplayServerX11::tts_get_voices() const {
ERR_FAIL_COND_V(!tts, Array());
return tts->get_voices();
}
void DisplayServerX11::tts_speak(const String &p_text, const String &p_voice, int p_volume, float p_pitch, float p_rate, int p_utterance_id, bool p_interrupt) {
ERR_FAIL_COND(!tts);
tts->speak(p_text, p_voice, p_volume, p_pitch, p_rate, p_utterance_id, p_interrupt);
}
void DisplayServerX11::tts_pause() {
ERR_FAIL_COND(!tts);
tts->pause();
}
void DisplayServerX11::tts_resume() {
ERR_FAIL_COND(!tts);
tts->resume();
}
void DisplayServerX11::tts_stop() {
ERR_FAIL_COND(!tts);
tts->stop();
}
#endif
void DisplayServerX11::mouse_set_mode(MouseMode p_mode) {
_THREAD_SAFE_METHOD_
if (p_mode == mouse_mode) {
return;
}
if (mouse_mode == MOUSE_MODE_CAPTURED || mouse_mode == MOUSE_MODE_CONFINED || mouse_mode == MOUSE_MODE_CONFINED_HIDDEN) {
XUngrabPointer(x11_display, CurrentTime);
}
// The only modes that show a cursor are VISIBLE and CONFINED
bool showCursor = (p_mode == MOUSE_MODE_VISIBLE || p_mode == MOUSE_MODE_CONFINED);
for (const KeyValue<WindowID, WindowData> &E : windows) {
if (showCursor) {
XDefineCursor(x11_display, E.value.x11_window, cursors[current_cursor]); // show cursor
} else {
XDefineCursor(x11_display, E.value.x11_window, null_cursor); // hide cursor
}
}
mouse_mode = p_mode;
if (mouse_mode == MOUSE_MODE_CAPTURED || mouse_mode == MOUSE_MODE_CONFINED || mouse_mode == MOUSE_MODE_CONFINED_HIDDEN) {
//flush pending motion events
_flush_mouse_motion();
WindowID window_id = windows.has(last_focused_window) ? last_focused_window : MAIN_WINDOW_ID;
WindowData &window = windows[window_id];
if (XGrabPointer(
x11_display, window.x11_window, True,
ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
GrabModeAsync, GrabModeAsync, window.x11_window, None, CurrentTime) != GrabSuccess) {
ERR_PRINT("NO GRAB");
}
if (mouse_mode == MOUSE_MODE_CAPTURED) {
center.x = window.size.width / 2;
center.y = window.size.height / 2;
XWarpPointer(x11_display, None, window.x11_window,
0, 0, 0, 0, (int)center.x, (int)center.y);
Input::get_singleton()->set_mouse_position(center);
}
} else {
do_mouse_warp = false;
}
XFlush(x11_display);
}
DisplayServerX11::MouseMode DisplayServerX11::mouse_get_mode() const {
return mouse_mode;
}
void DisplayServerX11::warp_mouse(const Point2i &p_position) {
_THREAD_SAFE_METHOD_
if (mouse_mode == MOUSE_MODE_CAPTURED) {
last_mouse_pos = p_position;
} else {
WindowID window_id = windows.has(last_focused_window) ? last_focused_window : MAIN_WINDOW_ID;
XWarpPointer(x11_display, None, windows[window_id].x11_window,
0, 0, 0, 0, (int)p_position.x, (int)p_position.y);
}
}
Point2i DisplayServerX11::mouse_get_position() const {
int number_of_screens = XScreenCount(x11_display);
for (int i = 0; i < number_of_screens; i++) {
Window root, child;
int root_x, root_y, win_x, win_y;
unsigned int mask;
if (XQueryPointer(x11_display, XRootWindow(x11_display, i), &root, &child, &root_x, &root_y, &win_x, &win_y, &mask)) {
XWindowAttributes root_attrs;
XGetWindowAttributes(x11_display, root, &root_attrs);
return Vector2i(root_attrs.x + root_x, root_attrs.y + root_y);
}
}
return Vector2i();
}
MouseButton DisplayServerX11::mouse_get_button_state() const {
return last_button_state;
}
void DisplayServerX11::clipboard_set(const String &p_text) {
_THREAD_SAFE_METHOD_
{
// The clipboard content can be accessed while polling for events.
MutexLock mutex_lock(events_mutex);
internal_clipboard = p_text;
}
XSetSelectionOwner(x11_display, XA_PRIMARY, windows[MAIN_WINDOW_ID].x11_window, CurrentTime);
XSetSelectionOwner(x11_display, XInternAtom(x11_display, "CLIPBOARD", 0), windows[MAIN_WINDOW_ID].x11_window, CurrentTime);
}
void DisplayServerX11::clipboard_set_primary(const String &p_text) {
_THREAD_SAFE_METHOD_
if (!p_text.is_empty()) {
{
// The clipboard content can be accessed while polling for events.
MutexLock mutex_lock(events_mutex);
internal_clipboard_primary = p_text;
}
XSetSelectionOwner(x11_display, XA_PRIMARY, windows[MAIN_WINDOW_ID].x11_window, CurrentTime);
XSetSelectionOwner(x11_display, XInternAtom(x11_display, "PRIMARY", 0), windows[MAIN_WINDOW_ID].x11_window, CurrentTime);
}
}
Bool DisplayServerX11::_predicate_clipboard_selection(Display *display, XEvent *event, XPointer arg) {
if (event->type == SelectionNotify && event->xselection.requestor == *(Window *)arg) {
return True;
} else {
return False;
}
}
Bool DisplayServerX11::_predicate_clipboard_incr(Display *display, XEvent *event, XPointer arg) {
if (event->type == PropertyNotify && event->xproperty.state == PropertyNewValue) {
return True;
} else {
return False;
}
}
String DisplayServerX11::_clipboard_get_impl(Atom p_source, Window x11_window, Atom target) const {
String ret;
Window selection_owner = XGetSelectionOwner(x11_display, p_source);
if (selection_owner == x11_window) {
static const char *target_type = "PRIMARY";
if (p_source != None && get_atom_name(x11_display, p_source) == target_type) {
return internal_clipboard_primary;
} else {
return internal_clipboard;
}
}
if (selection_owner != None) {
// 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;
unsigned char *data;
XGetWindowProperty(x11_display, x11_window,
selection, // Tricky..
0, 0, // offset - len
0, // Delete 0==FALSE
AnyPropertyType, // flag
&type, // return type
&format, // return format
&len, &bytes_left, // data length
&data);
if (data) {
XFree(data);
}
if (type == XInternAtom(x11_display, "INCR", 0)) {
// 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;
// Delete INCR property to notify the owner.
XDeleteProperty(x11_display, x11_window, type);
// 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, nullptr)) {
result = XGetWindowProperty(x11_display, x11_window,
selection, // selection type
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();
if (prev_size == 0) {
// First property contains initial data size.
unsigned long initial_size = *(unsigned long *)data;
incr_data.resize(initial_size);
} else {
// 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 {
// Last chunk, process finished.
done = true;
success = true;
}
} else {
printf("Failed to get selection data chunk.\n");
done = true;
}
if (data) {
XFree(data);
}
if (done) {
break;
}
}
}
if (success && (data_size > 0)) {
ret.parse_utf8((const char *)incr_data.ptr(), data_size);
}
} else if (bytes_left > 0) {
// Data is ready and can be processed all at once.
result = XGetWindowProperty(x11_display, x11_window,
selection, 0, bytes_left, 0,
AnyPropertyType, &type, &format,
&len, &dummy, &data);
if (result == Success) {
ret.parse_utf8((const char *)data);
} else {
printf("Failed to get selection data.\n");
}
if (data) {
XFree(data);
}
}
}
return ret;
}
String DisplayServerX11::_clipboard_get(Atom p_source, Window x11_window) const {
String ret;
Atom utf8_atom = XInternAtom(x11_display, "UTF8_STRING", True);
if (utf8_atom != None) {
ret = _clipboard_get_impl(p_source, x11_window, utf8_atom);
}
if (ret.is_empty()) {
ret = _clipboard_get_impl(p_source, x11_window, XA_STRING);
}
return ret;
}
String DisplayServerX11::clipboard_get() const {
_THREAD_SAFE_METHOD_
String ret;
ret = _clipboard_get(XInternAtom(x11_display, "CLIPBOARD", 0), windows[MAIN_WINDOW_ID].x11_window);
if (ret.is_empty()) {
ret = _clipboard_get(XA_PRIMARY, windows[MAIN_WINDOW_ID].x11_window);
}
return ret;
}
String DisplayServerX11::clipboard_get_primary() const {
_THREAD_SAFE_METHOD_
String ret;
ret = _clipboard_get(XInternAtom(x11_display, "PRIMARY", 0), windows[MAIN_WINDOW_ID].x11_window);
if (ret.is_empty()) {
ret = _clipboard_get(XA_PRIMARY, windows[MAIN_WINDOW_ID].x11_window);
}
return ret;
}
Bool DisplayServerX11::_predicate_clipboard_save_targets(Display *display, XEvent *event, XPointer arg) {
if (event->xany.window == *(Window *)arg) {
return (event->type == SelectionRequest) ||
(event->type == SelectionNotify);
} else {
return False;
}
}
void DisplayServerX11::_clipboard_transfer_ownership(Atom p_source, Window x11_window) const {
_THREAD_SAFE_METHOD_
Window selection_owner = XGetSelectionOwner(x11_display, p_source);
if (selection_owner != x11_window) {
return;
}
// Block events polling while processing selection events.
MutexLock mutex_lock(events_mutex);
Atom clipboard_manager = XInternAtom(x11_display, "CLIPBOARD_MANAGER", False);
Atom save_targets = XInternAtom(x11_display, "SAVE_TARGETS", False);
XConvertSelection(x11_display, clipboard_manager, save_targets, None,
x11_window, CurrentTime);
// Process events from the queue.
while (true) {
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_save_targets, (XPointer)&x11_window)) {
switch (ev.type) {
case SelectionRequest:
_handle_selection_request_event(&(ev.xselectionrequest));
break;
case SelectionNotify: {
if (ev.xselection.target == save_targets) {
// Once SelectionNotify is received, we're done whether it succeeded or not.
return;
}
break;
}
}
}
}
}
int DisplayServerX11::get_screen_count() const {
_THREAD_SAFE_METHOD_
int count = 0;
// Using Xinerama Extension
int event_base, error_base;
if (XineramaQueryExtension(x11_display, &event_base, &error_base)) {
XineramaScreenInfo *xsi = XineramaQueryScreens(x11_display, &count);
XFree(xsi);
} else {
count = XScreenCount(x11_display);
}
return count;
}
Rect2i DisplayServerX11::_screen_get_rect(int p_screen) const {
Rect2i rect(0, 0, 0, 0);
if (p_screen == SCREEN_OF_MAIN_WINDOW) {
p_screen = window_get_current_screen();
}
ERR_FAIL_COND_V(p_screen < 0, rect);
// Using Xinerama Extension.
int event_base, error_base;
if (XineramaQueryExtension(x11_display, &event_base, &error_base)) {
int count;
XineramaScreenInfo *xsi = XineramaQueryScreens(x11_display, &count);
// Check if screen is valid.
if (p_screen < count) {
rect.position.x = xsi[p_screen].x_org;
rect.position.y = xsi[p_screen].y_org;
rect.size.width = xsi[p_screen].width;
rect.size.height = xsi[p_screen].height;
} else {
ERR_PRINT("Invalid screen index: " + itos(p_screen) + "(count: " + itos(count) + ").");
}
if (xsi) {
XFree(xsi);
}
} else {
int count = XScreenCount(x11_display);
if (p_screen < count) {
Window root = XRootWindow(x11_display, p_screen);
XWindowAttributes xwa;
XGetWindowAttributes(x11_display, root, &xwa);
rect.position.x = xwa.x;
rect.position.y = xwa.y;
rect.size.width = xwa.width;
rect.size.height = xwa.height;
} else {
ERR_PRINT("Invalid screen index: " + itos(p_screen) + "(count: " + itos(count) + ").");
}
}
return rect;
}
Point2i DisplayServerX11::screen_get_position(int p_screen) const {
_THREAD_SAFE_METHOD_
return _screen_get_rect(p_screen).position;
}
Size2i DisplayServerX11::screen_get_size(int p_screen) const {
_THREAD_SAFE_METHOD_
return _screen_get_rect(p_screen).size;
}
bool g_bad_window = false;
int bad_window_error_handler(Display *display, XErrorEvent *error) {
if (error->error_code == BadWindow) {
g_bad_window = true;
} else {
ERR_PRINT("Unhandled XServer error code: " + itos(error->error_code));
}
return 0;
}
Rect2i DisplayServerX11::screen_get_usable_rect(int p_screen) const {
_THREAD_SAFE_METHOD_
if (p_screen == SCREEN_OF_MAIN_WINDOW) {
p_screen = window_get_current_screen();
}
int screen_count = get_screen_count();
// Check if screen is valid.
ERR_FAIL_INDEX_V(p_screen, screen_count, Rect2i(0, 0, 0, 0));
bool is_multiscreen = screen_count > 1;
// Use full monitor size as fallback.
Rect2i rect = _screen_get_rect(p_screen);
// There's generally only one screen reported by xlib even in multi-screen setup,
// in this case it's just one virtual screen composed of all physical monitors.
int x11_screen_count = ScreenCount(x11_display);
Window x11_window = RootWindow(x11_display, p_screen < x11_screen_count ? p_screen : 0);
Atom type;
int format = 0;
unsigned long remaining = 0;
// Find active desktop for the root window.
unsigned int desktop_index = 0;
Atom desktop_prop = XInternAtom(x11_display, "_NET_CURRENT_DESKTOP", True);
if (desktop_prop != None) {
unsigned long desktop_len = 0;
unsigned char *desktop_data = nullptr;
if (XGetWindowProperty(x11_display, x11_window, desktop_prop, 0, LONG_MAX, False, XA_CARDINAL, &type, &format, &desktop_len, &remaining, &desktop_data) == Success) {
if ((format == 32) && (desktop_len > 0) && desktop_data) {
desktop_index = (unsigned int)desktop_data[0];
}
if (desktop_data) {
XFree(desktop_data);
}
}
}
bool use_simple_method = true;
// First check for GTK work area, which is more accurate for multi-screen setup.
if (is_multiscreen) {
// Use already calculated work area when available.
Atom gtk_workareas_prop = XInternAtom(x11_display, "_GTK_WORKAREAS", False);
if (gtk_workareas_prop != None) {
char gtk_workarea_prop_name[32];
snprintf(gtk_workarea_prop_name, 32, "_GTK_WORKAREAS_D%d", desktop_index);
Atom gtk_workarea_prop = XInternAtom(x11_display, gtk_workarea_prop_name, True);
if (gtk_workarea_prop != None) {
unsigned long workarea_len = 0;
unsigned char *workarea_data = nullptr;
if (XGetWindowProperty(x11_display, x11_window, gtk_workarea_prop, 0, LONG_MAX, False, XA_CARDINAL, &type, &format, &workarea_len, &remaining, &workarea_data) == Success) {
if ((format == 32) && (workarea_len % 4 == 0) && workarea_data) {
long *rect_data = (long *)workarea_data;
for (uint32_t data_offset = 0; data_offset < workarea_len; data_offset += 4) {
Rect2i workarea_rect;
workarea_rect.position.x = rect_data[data_offset];
workarea_rect.position.y = rect_data[data_offset + 1];
workarea_rect.size.x = rect_data[data_offset + 2];
workarea_rect.size.y = rect_data[data_offset + 3];
// Intersect with actual monitor size to find the correct area,
// because areas are not in the same order as screens from Xinerama.
if (rect.grow(-1).intersects(workarea_rect)) {
rect = rect.intersection(workarea_rect);
XFree(workarea_data);
return rect;
}
}
}
}
if (workarea_data) {
XFree(workarea_data);
}
}
}
// Fallback to calculating work area by hand from struts.
Atom client_list_prop = XInternAtom(x11_display, "_NET_CLIENT_LIST", True);
if (client_list_prop != None) {
unsigned long clients_len = 0;
unsigned char *clients_data = nullptr;
if (XGetWindowProperty(x11_display, x11_window, client_list_prop, 0, LONG_MAX, False, XA_WINDOW, &type, &format, &clients_len, &remaining, &clients_data) == Success) {
if ((format == 32) && (clients_len > 0) && clients_data) {
Window *windows_data = (Window *)clients_data;
Rect2i desktop_rect;
bool desktop_valid = false;
// Get full desktop size.
{
Atom desktop_geometry_prop = XInternAtom(x11_display, "_NET_DESKTOP_GEOMETRY", True);
if (desktop_geometry_prop != None) {
unsigned long geom_len = 0;
unsigned char *geom_data = nullptr;
if (XGetWindowProperty(x11_display, x11_window, desktop_geometry_prop, 0, LONG_MAX, False, XA_CARDINAL, &type, &format, &geom_len, &remaining, &geom_data) == Success) {
if ((format == 32) && (geom_len >= 2) && geom_data) {
desktop_valid = true;
long *size_data = (long *)geom_data;
desktop_rect.size.x = size_data[0];
desktop_rect.size.y = size_data[1];
}
}
if (geom_data) {
XFree(geom_data);
}
}
}
// Get full desktop position.
if (desktop_valid) {
Atom desktop_viewport_prop = XInternAtom(x11_display, "_NET_DESKTOP_VIEWPORT", True);
if (desktop_viewport_prop != None) {
unsigned long viewport_len = 0;
unsigned char *viewport_data = nullptr;
if (XGetWindowProperty(x11_display, x11_window, desktop_viewport_prop, 0, LONG_MAX, False, XA_CARDINAL, &type, &format, &viewport_len, &remaining, &viewport_data) == Success) {
if ((format == 32) && (viewport_len >= 2) && viewport_data) {
desktop_valid = true;
long *pos_data = (long *)viewport_data;
desktop_rect.position.x = pos_data[0];
desktop_rect.position.y = pos_data[1];
}
}
if (viewport_data) {
XFree(viewport_data);
}
}
}
if (desktop_valid) {
use_simple_method = false;
// Handle bad window errors silently because there's no other way to check
// that one of the windows has been destroyed in the meantime.
int (*oldHandler)(Display *, XErrorEvent *) = XSetErrorHandler(&bad_window_error_handler);
for (unsigned long win_index = 0; win_index < clients_len; ++win_index) {
g_bad_window = false;
// Remove strut size from desktop size to get a more accurate result.
bool strut_found = false;
unsigned long strut_len = 0;
unsigned char *strut_data = nullptr;
Atom strut_partial_prop = XInternAtom(x11_display, "_NET_WM_STRUT_PARTIAL", True);
if (strut_partial_prop != None) {
if (XGetWindowProperty(x11_display, windows_data[win_index], strut_partial_prop, 0, LONG_MAX, False, XA_CARDINAL, &type, &format, &strut_len, &remaining, &strut_data) == Success) {
strut_found = true;
}
}
// Fallback to older strut property.
if (!g_bad_window && !strut_found) {
Atom strut_prop = XInternAtom(x11_display, "_NET_WM_STRUT", True);
if (strut_prop != None) {
if (XGetWindowProperty(x11_display, windows_data[win_index], strut_prop, 0, LONG_MAX, False, XA_CARDINAL, &type, &format, &strut_len, &remaining, &strut_data) == Success) {
strut_found = true;
}
}
}
if (!g_bad_window && strut_found && (format == 32) && (strut_len >= 4) && strut_data) {
long *struts = (long *)strut_data;
long left = struts[0];
long right = struts[1];
long top = struts[2];
long bottom = struts[3];
long left_start_y, left_end_y, right_start_y, right_end_y;
long top_start_x, top_end_x, bottom_start_x, bottom_end_x;
if (strut_len >= 12) {
left_start_y = struts[4];
left_end_y = struts[5];
right_start_y = struts[6];
right_end_y = struts[7];
top_start_x = struts[8];
top_end_x = struts[9];
bottom_start_x = struts[10];
bottom_end_x = struts[11];
} else {
left_start_y = 0;
left_end_y = desktop_rect.size.y;
right_start_y = 0;
right_end_y = desktop_rect.size.y;
top_start_x = 0;
top_end_x = desktop_rect.size.x;
bottom_start_x = 0;
bottom_end_x = desktop_rect.size.x;
}
const Point2i &pos = desktop_rect.position;
const Size2i &size = desktop_rect.size;
Rect2i left_rect(pos.x, pos.y + left_start_y, left, left_end_y - left_start_y);
if (left_rect.size.x > 0) {
Rect2i intersection = rect.intersection(left_rect);
if (!intersection.has_no_area() && intersection.size.x < rect.size.x) {
rect.position.x = left_rect.size.x;
rect.size.x = rect.size.x - intersection.size.x;
}
}
Rect2i right_rect(pos.x + size.x - right, pos.y + right_start_y, right, right_end_y - right_start_y);
if (right_rect.size.x > 0) {
Rect2i intersection = rect.intersection(right_rect);
if (!intersection.has_no_area() && right_rect.size.x < rect.size.x) {
rect.size.x = intersection.position.x - rect.position.x;
}
}
Rect2i top_rect(pos.x + top_start_x, pos.y, top_end_x - top_start_x, top);
if (top_rect.size.y > 0) {
Rect2i intersection = rect.intersection(top_rect);
if (!intersection.has_no_area() && intersection.size.y < rect.size.y) {
rect.position.y = top_rect.size.y;
rect.size.y = rect.size.y - intersection.size.y;
}
}
Rect2i bottom_rect(pos.x + bottom_start_x, pos.y + size.y - bottom, bottom_end_x - bottom_start_x, bottom);
if (bottom_rect.size.y > 0) {
Rect2i intersection = rect.intersection(bottom_rect);
if (!intersection.has_no_area() && right_rect.size.y < rect.size.y) {
rect.size.y = intersection.position.y - rect.position.y;
}
}
}
if (strut_data) {
XFree(strut_data);
}
}
// Restore default error handler.
XSetErrorHandler(oldHandler);
}
}
}
if (clients_data) {
XFree(clients_data);
}
}
}
// Single screen or fallback for multi screen.
if (use_simple_method) {
// Get desktop available size from the global work area.
Atom workarea_prop = XInternAtom(x11_display, "_NET_WORKAREA", True);
if (workarea_prop != None) {
unsigned long workarea_len = 0;
unsigned char *workarea_data = nullptr;
if (XGetWindowProperty(x11_display, x11_window, workarea_prop, 0, LONG_MAX, False, XA_CARDINAL, &type, &format, &workarea_len, &remaining, &workarea_data) == Success) {
if ((format == 32) && (workarea_len >= ((desktop_index + 1) * 4)) && workarea_data) {
long *rect_data = (long *)workarea_data;
int data_offset = desktop_index * 4;
Rect2i workarea_rect;
workarea_rect.position.x = rect_data[data_offset];
workarea_rect.position.y = rect_data[data_offset + 1];
workarea_rect.size.x = rect_data[data_offset + 2];
workarea_rect.size.y = rect_data[data_offset + 3];
// Intersect with actual monitor size to get a proper approximation in multi-screen setup.
if (!is_multiscreen) {
rect = workarea_rect;
} else if (rect.intersects(workarea_rect)) {
rect = rect.intersection(workarea_rect);
}
}
}
if (workarea_data) {
XFree(workarea_data);
}
}
}
return rect;
}
int DisplayServerX11::screen_get_dpi(int p_screen) const {
_THREAD_SAFE_METHOD_
if (p_screen == SCREEN_OF_MAIN_WINDOW) {
p_screen = window_get_current_screen();
}
//invalid screen?
ERR_FAIL_INDEX_V(p_screen, get_screen_count(), 0);
//Get physical monitor Dimensions through XRandR and calculate dpi
Size2i sc = screen_get_size(p_screen);
if (xrandr_ext_ok) {
int count = 0;
if (xrr_get_monitors) {
xrr_monitor_info *monitors = xrr_get_monitors(x11_display, windows[MAIN_WINDOW_ID].x11_window, true, &count);
if (p_screen < count) {
double xdpi = sc.width / (double)monitors[p_screen].mwidth * 25.4;
double ydpi = sc.height / (double)monitors[p_screen].mheight * 25.4;
xrr_free_monitors(monitors);
return (xdpi + ydpi) / 2;
}
xrr_free_monitors(monitors);
} else if (p_screen == 0) {
XRRScreenSize *sizes = XRRSizes(x11_display, 0, &count);
if (sizes) {
double xdpi = sc.width / (double)sizes[0].mwidth * 25.4;
double ydpi = sc.height / (double)sizes[0].mheight * 25.4;
return (xdpi + ydpi) / 2;
}
}
}
int width_mm = DisplayWidthMM(x11_display, p_screen);
int height_mm = DisplayHeightMM(x11_display, p_screen);
double xdpi = (width_mm ? sc.width / (double)width_mm * 25.4 : 0);
double ydpi = (height_mm ? sc.height / (double)height_mm * 25.4 : 0);
if (xdpi || ydpi) {
return (xdpi + ydpi) / (xdpi && ydpi ? 2 : 1);
}
//could not get dpi
return 96;
}
float DisplayServerX11::screen_get_refresh_rate(int p_screen) const {
_THREAD_SAFE_METHOD_
if (p_screen == SCREEN_OF_MAIN_WINDOW) {
p_screen = window_get_current_screen();
}
//invalid screen?
ERR_FAIL_INDEX_V(p_screen, get_screen_count(), SCREEN_REFRESH_RATE_FALLBACK);
//Use xrandr to get screen refresh rate.
if (xrandr_ext_ok) {
XRRScreenResources *screen_info = XRRGetScreenResources(x11_display, windows[MAIN_WINDOW_ID].x11_window);
if (screen_info) {
RRMode current_mode = 0;
xrr_monitor_info *monitors = nullptr;
if (xrr_get_monitors) {
int count = 0;
monitors = xrr_get_monitors(x11_display, windows[MAIN_WINDOW_ID].x11_window, true, &count);
ERR_FAIL_INDEX_V(p_screen, count, SCREEN_REFRESH_RATE_FALLBACK);
} else {
ERR_PRINT("An error occurred while trying to get the screen refresh rate.");
return SCREEN_REFRESH_RATE_FALLBACK;
}
bool found_active_mode = false;
for (int crtc = 0; crtc < screen_info->ncrtc; crtc++) { // Loop through outputs to find which one is currently outputting.
XRRCrtcInfo *monitor_info = XRRGetCrtcInfo(x11_display, screen_info, screen_info->crtcs[crtc]);
if (monitor_info->x != monitors[p_screen].x || monitor_info->y != monitors[p_screen].y) { // If X and Y aren't the same as the monitor we're looking for, this isn't the right monitor. Continue.
continue;
}
if (monitor_info->mode != None) {
current_mode = monitor_info->mode;
found_active_mode = true;
break;
}
}
if (found_active_mode) {
for (int mode = 0; mode < screen_info->nmode; mode++) {
XRRModeInfo m_info = screen_info->modes[mode];
if (m_info.id == current_mode) {
// Snap to nearest 0.01 to stay consistent with other platforms.
return Math::snapped((float)m_info.dotClock / ((float)m_info.hTotal * (float)m_info.vTotal), 0.01);
}
}
}
ERR_PRINT("An error occurred while trying to get the screen refresh rate."); // We should have returned the refresh rate by now. An error must have occurred.
return SCREEN_REFRESH_RATE_FALLBACK;
} else {
ERR_PRINT("An error occurred while trying to get the screen refresh rate.");
return SCREEN_REFRESH_RATE_FALLBACK;
}
}
ERR_PRINT("An error occurred while trying to get the screen refresh rate.");
return SCREEN_REFRESH_RATE_FALLBACK;
}
bool DisplayServerX11::screen_is_touchscreen(int p_screen) const {
_THREAD_SAFE_METHOD_
#ifndef _MSC_VER
#warning Need to get from proper window
#endif
return DisplayServer::screen_is_touchscreen(p_screen);
}
#ifdef DBUS_ENABLED
void DisplayServerX11::screen_set_keep_on(bool p_enable) {
if (screen_is_kept_on() == p_enable) {
return;
}
if (p_enable) {
screensaver->inhibit();
} else {
screensaver->uninhibit();
}
keep_screen_on = p_enable;
}
bool DisplayServerX11::screen_is_kept_on() const {
return keep_screen_on;
}
#endif
Vector<DisplayServer::WindowID> DisplayServerX11::get_window_list() const {
_THREAD_SAFE_METHOD_
Vector<int> ret;
for (const KeyValue<WindowID, WindowData> &E : windows) {
ret.push_back(E.key);
}
return ret;
}
DisplayServer::WindowID DisplayServerX11::create_sub_window(WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Rect2i &p_rect) {
_THREAD_SAFE_METHOD_
WindowID id = _create_window(p_mode, p_vsync_mode, p_flags, p_rect);
for (int i = 0; i < WINDOW_FLAG_MAX; i++) {
if (p_flags & (1 << i)) {
window_set_flag(WindowFlags(i), true, id);
}
}
return id;
}
void DisplayServerX11::show_window(WindowID p_id) {
_THREAD_SAFE_METHOD_
const WindowData &wd = windows[p_id];
popup_open(p_id);
DEBUG_LOG_X11("show_window: %lu (%u) \n", wd.x11_window, p_id);
XMapWindow(x11_display, wd.x11_window);
}
void DisplayServerX11::delete_sub_window(WindowID p_id) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_id));
ERR_FAIL_COND_MSG(p_id == MAIN_WINDOW_ID, "Main window can't be deleted");
popup_close(p_id);
WindowData &wd = windows[p_id];
DEBUG_LOG_X11("delete_sub_window: %lu (%u) \n", wd.x11_window, p_id);
while (wd.transient_children.size()) {
window_set_transient(*wd.transient_children.begin(), INVALID_WINDOW_ID);
}
if (wd.transient_parent != INVALID_WINDOW_ID) {
window_set_transient(p_id, INVALID_WINDOW_ID);
}
#ifdef VULKAN_ENABLED
if (context_vulkan) {
context_vulkan->window_destroy(p_id);
}
#endif
#ifdef GLES3_ENABLED
if (gl_manager) {
gl_manager->window_destroy(p_id);
}
#endif
XUnmapWindow(x11_display, wd.x11_window);
XDestroyWindow(x11_display, wd.x11_window);
if (wd.xic) {
XDestroyIC(wd.xic);
wd.xic = nullptr;
}
windows.erase(p_id);
}
int64_t DisplayServerX11::window_get_native_handle(HandleType p_handle_type, WindowID p_window) const {
ERR_FAIL_COND_V(!windows.has(p_window), 0);
switch (p_handle_type) {
case DISPLAY_HANDLE: {
return (int64_t)x11_display;
}
case WINDOW_HANDLE: {
return (int64_t)windows[p_window].x11_window;
}
case WINDOW_VIEW: {
return 0; // Not supported.
}
default: {
return 0;
}
}
}
void DisplayServerX11::window_attach_instance_id(ObjectID p_instance, WindowID p_window) {
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
wd.instance_id = p_instance;
}
ObjectID DisplayServerX11::window_get_attached_instance_id(WindowID p_window) const {
ERR_FAIL_COND_V(!windows.has(p_window), ObjectID());
const WindowData &wd = windows[p_window];
return wd.instance_id;
}
DisplayServerX11::WindowID DisplayServerX11::get_window_at_screen_position(const Point2i &p_position) const {
WindowID found_window = INVALID_WINDOW_ID;
WindowID parent_window = INVALID_WINDOW_ID;
unsigned int focus_order = 0;
for (const KeyValue<WindowID, WindowData> &E : windows) {
const WindowData &wd = E.value;
// Discard windows with no focus.
if (wd.focus_order == 0) {
continue;
}
// Find topmost window which contains the given position.
WindowID window_id = E.key;
Rect2i win_rect = Rect2i(window_get_position(window_id), window_get_size(window_id));
if (win_rect.has_point(p_position)) {
// For siblings, pick the window which was focused last.
if ((parent_window != wd.transient_parent) || (wd.focus_order > focus_order)) {
found_window = window_id;
parent_window = wd.transient_parent;
focus_order = wd.focus_order;
}
}
}
return found_window;
}
void DisplayServerX11::window_set_title(const String &p_title, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
XStoreName(x11_display, wd.x11_window, p_title.utf8().get_data());
Atom _net_wm_name = XInternAtom(x11_display, "_NET_WM_NAME", false);
Atom utf8_string = XInternAtom(x11_display, "UTF8_STRING", false);
if (_net_wm_name != None && utf8_string != None) {
XChangeProperty(x11_display, wd.x11_window, _net_wm_name, utf8_string, 8, PropModeReplace, (unsigned char *)p_title.utf8().get_data(), p_title.utf8().length());
}
}
void DisplayServerX11::window_set_mouse_passthrough(const Vector<Vector2> &p_region, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
const WindowData &wd = windows[p_window];
int event_base, error_base;
const Bool ext_okay = XShapeQueryExtension(x11_display, &event_base, &error_base);
if (ext_okay) {
Region region;
if (p_region.size() == 0) {
region = XCreateRegion();
XRectangle rect;
rect.x = 0;
rect.y = 0;
rect.width = window_get_real_size(p_window).x;
rect.height = window_get_real_size(p_window).y;
XUnionRectWithRegion(&rect, region, region);
} else {
XPoint *points = (XPoint *)memalloc(sizeof(XPoint) * p_region.size());
for (int i = 0; i < p_region.size(); i++) {
points[i].x = p_region[i].x;
points[i].y = p_region[i].y;
}
region = XPolygonRegion(points, p_region.size(), EvenOddRule);
memfree(points);
}
XShapeCombineRegion(x11_display, wd.x11_window, ShapeInput, 0, 0, region, ShapeSet);
XDestroyRegion(region);
}
}
void DisplayServerX11::window_set_rect_changed_callback(const Callable &p_callable, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
wd.rect_changed_callback = p_callable;
}
void DisplayServerX11::window_set_window_event_callback(const Callable &p_callable, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
wd.event_callback = p_callable;
}
void DisplayServerX11::window_set_input_event_callback(const Callable &p_callable, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
wd.input_event_callback = p_callable;
}
void DisplayServerX11::window_set_input_text_callback(const Callable &p_callable, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
wd.input_text_callback = p_callable;
}
void DisplayServerX11::window_set_drop_files_callback(const Callable &p_callable, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
wd.drop_files_callback = p_callable;
}
int DisplayServerX11::window_get_current_screen(WindowID p_window) const {
_THREAD_SAFE_METHOD_
int count = get_screen_count();
if (count < 2) {
// Early exit with single monitor.
return 0;
}
ERR_FAIL_COND_V(!windows.has(p_window), 0);
const WindowData &wd = windows[p_window];
const Rect2i window_rect(wd.position, wd.size);
// Find which monitor has the largest overlap with the given window.
int screen_index = 0;
int max_area = 0;
for (int i = 0; i < count; i++) {
Rect2i screen_rect = _screen_get_rect(i);
Rect2i intersection = screen_rect.intersection(window_rect);
int area = intersection.get_area();
if (area > max_area) {
max_area = area;
screen_index = i;
}
}
return screen_index;
}
void DisplayServerX11::gl_window_make_current(DisplayServer::WindowID p_window_id) {
#if defined(GLES3_ENABLED)
if (gl_manager) {
gl_manager->window_make_current(p_window_id);
}
#endif
}
void DisplayServerX11::window_set_current_screen(int p_screen, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
if (p_screen == SCREEN_OF_MAIN_WINDOW) {
p_screen = window_get_current_screen();
}
// Check if screen is valid
ERR_FAIL_INDEX(p_screen, get_screen_count());
if (window_get_mode(p_window) == WINDOW_MODE_FULLSCREEN) {
Point2i position = screen_get_position(p_screen);
Size2i size = screen_get_size(p_screen);
XMoveResizeWindow(x11_display, wd.x11_window, position.x, position.y, size.x, size.y);
} else {
if (p_screen != window_get_current_screen(p_window)) {
Point2i position = screen_get_position(p_screen);
XMoveWindow(x11_display, wd.x11_window, position.x, position.y);
}
}
}
void DisplayServerX11::window_set_transient(WindowID p_window, WindowID p_parent) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(p_window == p_parent);
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd_window = windows[p_window];
WindowID prev_parent = wd_window.transient_parent;
ERR_FAIL_COND(prev_parent == p_parent);
DEBUG_LOG_X11("window_set_transient: %lu (%u), prev_parent=%u, parent=%u\n", wd_window.x11_window, p_window, prev_parent, p_parent);
ERR_FAIL_COND_MSG(wd_window.on_top, "Windows with the 'on top' can't become transient.");
if (p_parent == INVALID_WINDOW_ID) {
//remove transient
ERR_FAIL_COND(prev_parent == INVALID_WINDOW_ID);
ERR_FAIL_COND(!windows.has(prev_parent));
WindowData &wd_parent = windows[prev_parent];
wd_window.transient_parent = INVALID_WINDOW_ID;
wd_parent.transient_children.erase(p_window);
XSetTransientForHint(x11_display, wd_window.x11_window, None);
// Set focus to parent sub window to avoid losing all focus when closing a nested sub-menu.
// RevertToPointerRoot is used to make sure we don't lose all focus in case
// a subwindow and its parent are both destroyed.
if (!wd_window.no_focus && !wd_window.is_popup && wd_window.focused) {
if (!wd_parent.no_focus && !wd_window.is_popup) {
XSetInputFocus(x11_display, wd_parent.x11_window, RevertToPointerRoot, CurrentTime);
}
}
} else {
ERR_FAIL_COND(!windows.has(p_parent));
ERR_FAIL_COND_MSG(prev_parent != INVALID_WINDOW_ID, "Window already has a transient parent");
WindowData &wd_parent = windows[p_parent];
wd_window.transient_parent = p_parent;
wd_parent.transient_children.insert(p_window);
XSetTransientForHint(x11_display, wd_window.x11_window, wd_parent.x11_window);
}
}
// Helper method. Assumes that the window id has already been checked and exists.
void DisplayServerX11::_update_size_hints(WindowID p_window) {
WindowData &wd = windows[p_window];
WindowMode window_mode = window_get_mode(p_window);
XSizeHints *xsh = XAllocSizeHints();
// Always set the position and size hints - they should be synchronized with the actual values after the window is mapped anyway
xsh->flags |= PPosition | PSize;
xsh->x = wd.position.x;
xsh->y = wd.position.y;
xsh->width = wd.size.width;
xsh->height = wd.size.height;
if (window_mode == WINDOW_MODE_FULLSCREEN) {
// Do not set any other hints to prevent the window manager from ignoring the fullscreen flags
} else if (window_get_flag(WINDOW_FLAG_RESIZE_DISABLED, p_window)) {
// If resizing is disabled, use the forced size
xsh->flags |= PMinSize | PMaxSize;
xsh->min_width = wd.size.x;
xsh->max_width = wd.size.x;
xsh->min_height = wd.size.y;
xsh->max_height = wd.size.y;
} else {
// Otherwise, just respect min_size and max_size
if (wd.min_size != Size2i()) {
xsh->flags |= PMinSize;
xsh->min_width = wd.min_size.x;
xsh->min_height = wd.min_size.y;
}
if (wd.max_size != Size2i()) {
xsh->flags |= PMaxSize;
xsh->max_width = wd.max_size.x;
xsh->max_height = wd.max_size.y;
}
}
XSetWMNormalHints(x11_display, wd.x11_window, xsh);
XFree(xsh);
}
Point2i DisplayServerX11::window_get_position(WindowID p_window) const {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND_V(!windows.has(p_window), Point2i());
const WindowData &wd = windows[p_window];
return wd.position;
}
void DisplayServerX11::window_set_position(const Point2i &p_position, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
int x = 0;
int y = 0;
if (!window_get_flag(WINDOW_FLAG_BORDERLESS, p_window)) {
//exclude window decorations
XSync(x11_display, False);
Atom prop = XInternAtom(x11_display, "_NET_FRAME_EXTENTS", True);
if (prop != None) {
Atom type;
int format;
unsigned long len;
unsigned long remaining;
unsigned char *data = nullptr;
if (XGetWindowProperty(x11_display, wd.x11_window, prop, 0, 4, False, AnyPropertyType, &type, &format, &len, &remaining, &data) == Success) {
if (format == 32 && len == 4 && data) {
long *extents = (long *)data;
x = extents[0];
y = extents[2];
}
XFree(data);
}
}
}
XMoveWindow(x11_display, wd.x11_window, p_position.x - x, p_position.y - y);
_update_real_mouse_position(wd);
}
void DisplayServerX11::window_set_max_size(const Size2i p_size, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
if ((p_size != Size2i()) && ((p_size.x < wd.min_size.x) || (p_size.y < wd.min_size.y))) {
ERR_PRINT("Maximum window size can't be smaller than minimum window size!");
return;
}
wd.max_size = p_size;
_update_size_hints(p_window);
XFlush(x11_display);
}
Size2i DisplayServerX11::window_get_max_size(WindowID p_window) const {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND_V(!windows.has(p_window), Size2i());
const WindowData &wd = windows[p_window];
return wd.max_size;
}
void DisplayServerX11::window_set_min_size(const Size2i p_size, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
if ((p_size != Size2i()) && (wd.max_size != Size2i()) && ((p_size.x > wd.max_size.x) || (p_size.y > wd.max_size.y))) {
ERR_PRINT("Minimum window size can't be larger than maximum window size!");
return;
}
wd.min_size = p_size;
_update_size_hints(p_window);
XFlush(x11_display);
}
Size2i DisplayServerX11::window_get_min_size(WindowID p_window) const {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND_V(!windows.has(p_window), Size2i());
const WindowData &wd = windows[p_window];
return wd.min_size;
}
void DisplayServerX11::window_set_size(const Size2i p_size, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
Size2i size = p_size;
size.x = MAX(1, size.x);
size.y = MAX(1, size.y);
WindowData &wd = windows[p_window];
if (wd.size.width == size.width && wd.size.height == size.height) {
return;
}
XWindowAttributes xwa;
XSync(x11_display, False);
XGetWindowAttributes(x11_display, wd.x11_window, &xwa);
int old_w = xwa.width;
int old_h = xwa.height;
// Update our videomode width and height
wd.size = size;
// Update the size hints first to make sure the window size can be set
_update_size_hints(p_window);
// Resize the window
XResizeWindow(x11_display, wd.x11_window, size.x, size.y);
for (int timeout = 0; timeout < 50; ++timeout) {
XSync(x11_display, False);
XGetWindowAttributes(x11_display, wd.x11_window, &xwa);
if (old_w != xwa.width || old_h != xwa.height) {
break;
}
usleep(10000);
}
}
Size2i DisplayServerX11::window_get_size(WindowID p_window) const {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND_V(!windows.has(p_window), Size2i());
const WindowData &wd = windows[p_window];
return wd.size;
}
Size2i DisplayServerX11::window_get_real_size(WindowID p_window) const {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND_V(!windows.has(p_window), Size2i());
const WindowData &wd = windows[p_window];
XWindowAttributes xwa;
XSync(x11_display, False);
XGetWindowAttributes(x11_display, wd.x11_window, &xwa);
int w = xwa.width;
int h = xwa.height;
Atom prop = XInternAtom(x11_display, "_NET_FRAME_EXTENTS", True);
if (prop != None) {
Atom type;
int format;
unsigned long len;
unsigned long remaining;
unsigned char *data = nullptr;
if (XGetWindowProperty(x11_display, wd.x11_window, prop, 0, 4, False, AnyPropertyType, &type, &format, &len, &remaining, &data) == Success) {
if (format == 32 && len == 4 && data) {
long *extents = (long *)data;
w += extents[0] + extents[1]; // left, right
h += extents[2] + extents[3]; // top, bottom
}
XFree(data);
}
}
return Size2i(w, h);
}
// Just a helper to reduce code duplication in `window_is_maximize_allowed`
// and `_set_wm_maximized`.
bool DisplayServerX11::_window_maximize_check(WindowID p_window, const char *p_atom_name) const {
ERR_FAIL_COND_V(!windows.has(p_window), false);
const WindowData &wd = windows[p_window];
Atom property = XInternAtom(x11_display, p_atom_name, False);
Atom type;
int format;
unsigned long len;
unsigned long remaining;
unsigned char *data = nullptr;
bool retval = false;
if (property == None) {
return false;
}
int result = XGetWindowProperty(
x11_display,
wd.x11_window,
property,
0,
1024,
False,
XA_ATOM,
&type,
&format,
&len,
&remaining,
&data);
if (result == Success && data) {
Atom *atoms = (Atom *)data;
Atom wm_act_max_horz;
Atom wm_act_max_vert;
if (strcmp(p_atom_name, "_NET_WM_STATE") == 0) {
wm_act_max_horz = XInternAtom(x11_display, "_NET_WM_STATE_MAXIMIZED_HORZ", False);
wm_act_max_vert = XInternAtom(x11_display, "_NET_WM_STATE_MAXIMIZED_VERT", False);
} else {
wm_act_max_horz = XInternAtom(x11_display, "_NET_WM_ACTION_MAXIMIZE_HORZ", False);
wm_act_max_vert = XInternAtom(x11_display, "_NET_WM_ACTION_MAXIMIZE_VERT", False);
}
bool found_wm_act_max_horz = false;
bool found_wm_act_max_vert = false;
for (uint64_t i = 0; i < len; i++) {
if (atoms[i] == wm_act_max_horz) {
found_wm_act_max_horz = true;
}
if (atoms[i] == wm_act_max_vert) {
found_wm_act_max_vert = true;
}
if (found_wm_act_max_horz || found_wm_act_max_vert) {
retval = true;
break;
}
}
XFree(data);
}
return retval;
}
bool DisplayServerX11::window_is_maximize_allowed(WindowID p_window) const {
_THREAD_SAFE_METHOD_
return _window_maximize_check(p_window, "_NET_WM_ALLOWED_ACTIONS");
}
void DisplayServerX11::_set_wm_maximized(WindowID p_window, bool p_enabled) {
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
// Using EWMH -- Extended Window Manager Hints
XEvent xev;
Atom wm_state = XInternAtom(x11_display, "_NET_WM_STATE", False);
Atom wm_max_horz = XInternAtom(x11_display, "_NET_WM_STATE_MAXIMIZED_HORZ", False);
Atom wm_max_vert = XInternAtom(x11_display, "_NET_WM_STATE_MAXIMIZED_VERT", False);
memset(&xev, 0, sizeof(xev));
xev.type = ClientMessage;
xev.xclient.window = wd.x11_window;
xev.xclient.message_type = wm_state;
xev.xclient.format = 32;
xev.xclient.data.l[0] = p_enabled ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE;
xev.xclient.data.l[1] = wm_max_horz;
xev.xclient.data.l[2] = wm_max_vert;
XSendEvent(x11_display, DefaultRootWindow(x11_display), False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
if (p_enabled && window_is_maximize_allowed(p_window)) {
// Wait for effective resizing (so the GLX context is too).
// Give up after 0.5s, it's not going to happen on this WM.
// https://github.com/godotengine/godot/issues/19978
for (int attempt = 0; window_get_mode(p_window) != WINDOW_MODE_MAXIMIZED && attempt < 50; attempt++) {
usleep(10000);
}
}
}
void DisplayServerX11::_set_wm_fullscreen(WindowID p_window, bool p_enabled) {
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
if (p_enabled && !window_get_flag(WINDOW_FLAG_BORDERLESS, p_window)) {
// remove decorations if the window is not already borderless
Hints hints;
Atom property;
hints.flags = 2;
hints.decorations = 0;
property = XInternAtom(x11_display, "_MOTIF_WM_HINTS", True);
if (property != None) {
XChangeProperty(x11_display, wd.x11_window, property, property, 32, PropModeReplace, (unsigned char *)&hints, 5);
}
}
if (p_enabled) {
// Set the window as resizable to prevent window managers to ignore the fullscreen state flag.
_update_size_hints(p_window);
}
// Using EWMH -- Extended Window Manager Hints
XEvent xev;
Atom wm_state = XInternAtom(x11_display, "_NET_WM_STATE", False);
Atom wm_fullscreen = XInternAtom(x11_display, "_NET_WM_STATE_FULLSCREEN", False);
memset(&xev, 0, sizeof(xev));
xev.type = ClientMessage;
xev.xclient.window = wd.x11_window;
xev.xclient.message_type = wm_state;
xev.xclient.format = 32;
xev.xclient.data.l[0] = p_enabled ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE;
xev.xclient.data.l[1] = wm_fullscreen;
xev.xclient.data.l[2] = 0;
XSendEvent(x11_display, DefaultRootWindow(x11_display), False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
// set bypass compositor hint
Atom bypass_compositor = XInternAtom(x11_display, "_NET_WM_BYPASS_COMPOSITOR", False);
unsigned long compositing_disable_on = p_enabled ? 1 : 0;
if (bypass_compositor != None) {
XChangeProperty(x11_display, wd.x11_window, bypass_compositor, XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&compositing_disable_on, 1);
}
XFlush(x11_display);
if (!p_enabled) {
// Reset the non-resizable flags if we un-set these before.
_update_size_hints(p_window);
// put back or remove decorations according to the last set borderless state
Hints hints;
Atom property;
hints.flags = 2;
hints.decorations = wd.borderless ? 0 : 1;
property = XInternAtom(x11_display, "_MOTIF_WM_HINTS", True);
if (property != None) {
XChangeProperty(x11_display, wd.x11_window, property, property, 32, PropModeReplace, (unsigned char *)&hints, 5);
}
}
}
void DisplayServerX11::window_set_mode(WindowMode p_mode, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
WindowMode old_mode = window_get_mode(p_window);
if (old_mode == p_mode) {
return; // do nothing
}
//remove all "extra" modes
switch (old_mode) {
case WINDOW_MODE_WINDOWED: {
//do nothing
} break;
case WINDOW_MODE_MINIMIZED: {
//Un-Minimize
// Using ICCCM -- Inter-Client Communication Conventions Manual
XEvent xev;
Atom wm_change = XInternAtom(x11_display, "WM_CHANGE_STATE", False);
memset(&xev, 0, sizeof(xev));
xev.type = ClientMessage;
xev.xclient.window = wd.x11_window;
xev.xclient.message_type = wm_change;
xev.xclient.format = 32;
xev.xclient.data.l[0] = WM_NormalState;
XSendEvent(x11_display, DefaultRootWindow(x11_display), False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
Atom wm_state = XInternAtom(x11_display, "_NET_WM_STATE", False);
Atom wm_hidden = XInternAtom(x11_display, "_NET_WM_STATE_HIDDEN", False);
memset(&xev, 0, sizeof(xev));
xev.type = ClientMessage;
xev.xclient.window = wd.x11_window;
xev.xclient.message_type = wm_state;
xev.xclient.format = 32;
xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
xev.xclient.data.l[1] = wm_hidden;
XSendEvent(x11_display, DefaultRootWindow(x11_display), False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
} break;
case WINDOW_MODE_EXCLUSIVE_FULLSCREEN:
case WINDOW_MODE_FULLSCREEN: {
//Remove full-screen
wd.fullscreen = false;
_set_wm_fullscreen(p_window, false);
//un-maximize required for always on top
bool on_top = window_get_flag(WINDOW_FLAG_ALWAYS_ON_TOP, p_window);
window_set_position(wd.last_position_before_fs, p_window);
if (on_top) {
_set_wm_maximized(p_window, false);
}
} break;
case WINDOW_MODE_MAXIMIZED: {
_set_wm_maximized(p_window, false);
} break;
}
switch (p_mode) {
case WINDOW_MODE_WINDOWED: {
//do nothing
} break;
case WINDOW_MODE_MINIMIZED: {
// Using ICCCM -- Inter-Client Communication Conventions Manual
XEvent xev;
Atom wm_change = XInternAtom(x11_display, "WM_CHANGE_STATE", False);
memset(&xev, 0, sizeof(xev));
xev.type = ClientMessage;
xev.xclient.window = wd.x11_window;
xev.xclient.message_type = wm_change;
xev.xclient.format = 32;
xev.xclient.data.l[0] = WM_IconicState;
XSendEvent(x11_display, DefaultRootWindow(x11_display), False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
Atom wm_state = XInternAtom(x11_display, "_NET_WM_STATE", False);
Atom wm_hidden = XInternAtom(x11_display, "_NET_WM_STATE_HIDDEN", False);
memset(&xev, 0, sizeof(xev));
xev.type = ClientMessage;
xev.xclient.window = wd.x11_window;
xev.xclient.message_type = wm_state;
xev.xclient.format = 32;
xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
xev.xclient.data.l[1] = wm_hidden;
XSendEvent(x11_display, DefaultRootWindow(x11_display), False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
} break;
case WINDOW_MODE_EXCLUSIVE_FULLSCREEN:
case WINDOW_MODE_FULLSCREEN: {
wd.last_position_before_fs = wd.position;
if (window_get_flag(WINDOW_FLAG_ALWAYS_ON_TOP, p_window)) {
_set_wm_maximized(p_window, true);
}
wd.fullscreen = true;
_set_wm_fullscreen(p_window, true);
} break;
case WINDOW_MODE_MAXIMIZED: {
_set_wm_maximized(p_window, true);
} break;
}
}
DisplayServer::WindowMode DisplayServerX11::window_get_mode(WindowID p_window) const {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND_V(!windows.has(p_window), WINDOW_MODE_WINDOWED);
const WindowData &wd = windows[p_window];
if (wd.fullscreen) { //if fullscreen, it's not in another mode
return WINDOW_MODE_FULLSCREEN;
}
// Test maximized.
// Using EWMH -- Extended Window Manager Hints
if (_window_maximize_check(p_window, "_NET_WM_STATE")) {
return WINDOW_MODE_MAXIMIZED;
}
{ // Test minimized.
// Using ICCCM -- Inter-Client Communication Conventions Manual
Atom property = XInternAtom(x11_display, "WM_STATE", True);
if (property == None) {
return WINDOW_MODE_WINDOWED;
}
Atom type;
int format;
unsigned long len;
unsigned long remaining;
unsigned char *data = nullptr;
int result = XGetWindowProperty(
x11_display,
wd.x11_window,
property,
0,
32,
False,
AnyPropertyType,
&type,
&format,
&len,
&remaining,
&data);
if (result == Success && data) {
long *state = (long *)data;
if (state[0] == WM_IconicState) {
XFree(data);
return WINDOW_MODE_MINIMIZED;
}
XFree(data);
}
}
// All other discarded, return windowed.
return WINDOW_MODE_WINDOWED;
}
void DisplayServerX11::window_set_flag(WindowFlags p_flag, bool p_enabled, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
switch (p_flag) {
case WINDOW_FLAG_RESIZE_DISABLED: {
wd.resize_disabled = p_enabled;
_update_size_hints(p_window);
XFlush(x11_display);
} break;
case WINDOW_FLAG_BORDERLESS: {
Hints hints;
Atom property;
hints.flags = 2;
hints.decorations = p_enabled ? 0 : 1;
property = XInternAtom(x11_display, "_MOTIF_WM_HINTS", True);
if (property != None) {
XChangeProperty(x11_display, wd.x11_window, property, property, 32, PropModeReplace, (unsigned char *)&hints, 5);
}
// Preserve window size
window_set_size(window_get_size(p_window), p_window);
wd.borderless = p_enabled;
} break;
case WINDOW_FLAG_ALWAYS_ON_TOP: {
ERR_FAIL_COND_MSG(wd.transient_parent != INVALID_WINDOW_ID, "Can't make a window transient if the 'on top' flag is active.");
if (p_enabled && wd.fullscreen) {
_set_wm_maximized(p_window, true);
}
Atom wm_state = XInternAtom(x11_display, "_NET_WM_STATE", False);
Atom wm_above = XInternAtom(x11_display, "_NET_WM_STATE_ABOVE", False);
XClientMessageEvent xev;
memset(&xev, 0, sizeof(xev));
xev.type = ClientMessage;
xev.window = wd.x11_window;
xev.message_type = wm_state;
xev.format = 32;
xev.data.l[0] = p_enabled ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE;
xev.data.l[1] = wm_above;
xev.data.l[3] = 1;
XSendEvent(x11_display, DefaultRootWindow(x11_display), False, SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&xev);
if (!p_enabled && !wd.fullscreen) {
_set_wm_maximized(p_window, false);
}
wd.on_top = p_enabled;
} break;
case WINDOW_FLAG_TRANSPARENT: {
//todo reimplement
} break;
case WINDOW_FLAG_NO_FOCUS: {
wd.no_focus = p_enabled;
} break;
case WINDOW_FLAG_POPUP: {
XWindowAttributes xwa;
XSync(x11_display, False);
XGetWindowAttributes(x11_display, wd.x11_window, &xwa);
ERR_FAIL_COND_MSG(p_window == MAIN_WINDOW_ID, "Main window can't be popup.");
ERR_FAIL_COND_MSG((xwa.map_state == IsViewable) && (wd.is_popup != p_enabled), "Popup flag can't changed while window is opened.");
wd.is_popup = p_enabled;
} break;
default: {
}
}
}
bool DisplayServerX11::window_get_flag(WindowFlags p_flag, WindowID p_window) const {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND_V(!windows.has(p_window), false);
const WindowData &wd = windows[p_window];
switch (p_flag) {
case WINDOW_FLAG_RESIZE_DISABLED: {
return wd.resize_disabled;
} break;
case WINDOW_FLAG_BORDERLESS: {
bool borderless = wd.borderless;
Atom prop = XInternAtom(x11_display, "_MOTIF_WM_HINTS", True);
if (prop != None) {
Atom type;
int format;
unsigned long len;
unsigned long remaining;
unsigned char *data = nullptr;
if (XGetWindowProperty(x11_display, wd.x11_window, prop, 0, sizeof(Hints), False, AnyPropertyType, &type, &format, &len, &remaining, &data) == Success) {
if (data && (format == 32) && (len >= 5)) {
borderless = !(reinterpret_cast<Hints *>(data)->decorations);
}
if (data) {
XFree(data);
}
}
}
return borderless;
} break;
case WINDOW_FLAG_ALWAYS_ON_TOP: {
return wd.on_top;
} break;
case WINDOW_FLAG_TRANSPARENT: {
//todo reimplement
} break;
case WINDOW_FLAG_NO_FOCUS: {
return wd.no_focus;
} break;
case WINDOW_FLAG_POPUP: {
return wd.is_popup;
} break;
default: {
}
}
return false;
}
void DisplayServerX11::window_request_attention(WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
const WindowData &wd = windows[p_window];
// Using EWMH -- Extended Window Manager Hints
//
// Sets the _NET_WM_STATE_DEMANDS_ATTENTION atom for WM_STATE
// Will be unset by the window manager after user react on the request for attention
XEvent xev;
Atom wm_state = XInternAtom(x11_display, "_NET_WM_STATE", False);
Atom wm_attention = XInternAtom(x11_display, "_NET_WM_STATE_DEMANDS_ATTENTION", False);
memset(&xev, 0, sizeof(xev));
xev.type = ClientMessage;
xev.xclient.window = wd.x11_window;
xev.xclient.message_type = wm_state;
xev.xclient.format = 32;
xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
xev.xclient.data.l[1] = wm_attention;
XSendEvent(x11_display, DefaultRootWindow(x11_display), False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
XFlush(x11_display);
}
void DisplayServerX11::window_move_to_foreground(WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
const WindowData &wd = windows[p_window];
XEvent xev;
Atom net_active_window = XInternAtom(x11_display, "_NET_ACTIVE_WINDOW", False);
memset(&xev, 0, sizeof(xev));
xev.type = ClientMessage;
xev.xclient.window = wd.x11_window;
xev.xclient.message_type = net_active_window;
xev.xclient.format = 32;
xev.xclient.data.l[0] = 1;
xev.xclient.data.l[1] = CurrentTime;
XSendEvent(x11_display, DefaultRootWindow(x11_display), False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
XFlush(x11_display);
}
bool DisplayServerX11::window_can_draw(WindowID p_window) const {
//this seems to be all that is provided by X11
return window_get_mode(p_window) != WINDOW_MODE_MINIMIZED;
}
bool DisplayServerX11::can_any_window_draw() const {
_THREAD_SAFE_METHOD_
for (const KeyValue<WindowID, WindowData> &E : windows) {
if (window_get_mode(E.key) != WINDOW_MODE_MINIMIZED) {
return true;
}
}
return false;
}
void DisplayServerX11::window_set_ime_active(const bool p_active, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
wd.im_active = p_active;
if (!wd.xic) {
return;
}
// Block events polling while changing input focus
// because it triggers some event polling internally.
if (p_active) {
{
MutexLock mutex_lock(events_mutex);
XSetICFocus(wd.xic);
}
window_set_ime_position(wd.im_position, p_window);
} else {
MutexLock mutex_lock(events_mutex);
XUnsetICFocus(wd.xic);
}
}
void DisplayServerX11::window_set_ime_position(const Point2i &p_pos, WindowID p_window) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
wd.im_position = p_pos;
if (!wd.xic) {
return;
}
::XPoint spot;
spot.x = short(p_pos.x);
spot.y = short(p_pos.y);
XVaNestedList preedit_attr = XVaCreateNestedList(0, XNSpotLocation, &spot, nullptr);
{
// Block events polling during this call
// because it triggers some event polling internally.
MutexLock mutex_lock(events_mutex);
XSetICValues(wd.xic, XNPreeditAttributes, preedit_attr, nullptr);
}
XFree(preedit_attr);
}
void DisplayServerX11::cursor_set_shape(CursorShape p_shape) {
_THREAD_SAFE_METHOD_
ERR_FAIL_INDEX(p_shape, CURSOR_MAX);
if (p_shape == current_cursor) {
return;
}
if (mouse_mode == MOUSE_MODE_VISIBLE || mouse_mode == MOUSE_MODE_CONFINED) {
if (cursors[p_shape] != None) {
for (const KeyValue<WindowID, WindowData> &E : windows) {
XDefineCursor(x11_display, E.value.x11_window, cursors[p_shape]);
}
} else if (cursors[CURSOR_ARROW] != None) {
for (const KeyValue<WindowID, WindowData> &E : windows) {
XDefineCursor(x11_display, E.value.x11_window, cursors[CURSOR_ARROW]);
}
}
}
current_cursor = p_shape;
}
DisplayServerX11::CursorShape DisplayServerX11::cursor_get_shape() const {
return current_cursor;
}
void DisplayServerX11::cursor_set_custom_image(const Ref<Resource> &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) {
_THREAD_SAFE_METHOD_
if (p_cursor.is_valid()) {
HashMap<CursorShape, Vector<Variant>>::Iterator cursor_c = cursors_cache.find(p_shape);
if (cursor_c) {
if (cursor_c->value[0] == p_cursor && cursor_c->value[1] == p_hotspot) {
cursor_set_shape(p_shape);
return;
}
cursors_cache.erase(p_shape);
}
Ref<Texture2D> texture = p_cursor;
Ref<AtlasTexture> atlas_texture = p_cursor;
Ref<Image> image;
Size2i texture_size;
Rect2i atlas_rect;
if (texture.is_valid()) {
image = texture->get_image();
}
if (!image.is_valid() && atlas_texture.is_valid()) {
texture = atlas_texture->get_atlas();
atlas_rect.size.width = texture->get_width();
atlas_rect.size.height = texture->get_height();
atlas_rect.position.x = atlas_texture->get_region().position.x;
atlas_rect.position.y = atlas_texture->get_region().position.y;
texture_size.width = atlas_texture->get_region().size.x;
texture_size.height = atlas_texture->get_region().size.y;
} else if (image.is_valid()) {
texture_size.width = texture->get_width();
texture_size.height = texture->get_height();
}
ERR_FAIL_COND(!texture.is_valid());
ERR_FAIL_COND(p_hotspot.x < 0 || p_hotspot.y < 0);
ERR_FAIL_COND(texture_size.width > 256 || texture_size.height > 256);
ERR_FAIL_COND(p_hotspot.x > texture_size.width || p_hotspot.y > texture_size.height);
image = texture->get_image();
ERR_FAIL_COND(!image.is_valid());
// Create the cursor structure
XcursorImage *cursor_image = XcursorImageCreate(texture_size.width, texture_size.height);
XcursorUInt image_size = texture_size.width * texture_size.height;
XcursorDim size = sizeof(XcursorPixel) * image_size;
cursor_image->version = 1;
cursor_image->size = size;
cursor_image->xhot = p_hotspot.x;
cursor_image->yhot = p_hotspot.y;
// allocate memory to contain the whole file
cursor_image->pixels = (XcursorPixel *)memalloc(size);
for (XcursorPixel index = 0; index < image_size; index++) {
int row_index = floor(index / texture_size.width) + atlas_rect.position.y;
int column_index = (index % int(texture_size.width)) + atlas_rect.position.x;
if (atlas_texture.is_valid()) {
column_index = MIN(column_index, atlas_rect.size.width - 1);
row_index = MIN(row_index, atlas_rect.size.height - 1);
}
*(cursor_image->pixels + index) = image->get_pixel(column_index, row_index).to_argb32();
}
ERR_FAIL_COND(cursor_image->pixels == nullptr);
// Save it for a further usage
cursors[p_shape] = XcursorImageLoadCursor(x11_display, cursor_image);
Vector<Variant> params;
params.push_back(p_cursor);
params.push_back(p_hotspot);
cursors_cache.insert(p_shape, params);
if (p_shape == current_cursor) {
if (mouse_mode == MOUSE_MODE_VISIBLE || mouse_mode == MOUSE_MODE_CONFINED) {
for (const KeyValue<WindowID, WindowData> &E : windows) {
XDefineCursor(x11_display, E.value.x11_window, cursors[p_shape]);
}
}
}
memfree(cursor_image->pixels);
XcursorImageDestroy(cursor_image);
} else {
// Reset to default system cursor
if (img[p_shape]) {
cursors[p_shape] = XcursorImageLoadCursor(x11_display, img[p_shape]);
}
CursorShape c = current_cursor;
current_cursor = CURSOR_MAX;
cursor_set_shape(c);
cursors_cache.erase(p_shape);
}
}
int DisplayServerX11::keyboard_get_layout_count() const {
int _group_count = 0;
XkbDescRec *kbd = XkbAllocKeyboard();
if (kbd) {
kbd->dpy = x11_display;
XkbGetControls(x11_display, XkbAllControlsMask, kbd);
XkbGetNames(x11_display, XkbSymbolsNameMask, kbd);
const Atom *groups = kbd->names->groups;
if (kbd->ctrls != nullptr) {
_group_count = kbd->ctrls->num_groups;
} else {
while (_group_count < XkbNumKbdGroups && groups[_group_count] != None) {
_group_count++;
}
}
XkbFreeKeyboard(kbd, 0, true);
}
return _group_count;
}
int DisplayServerX11::keyboard_get_current_layout() const {
XkbStateRec state;
XkbGetState(x11_display, XkbUseCoreKbd, &state);
return state.group;
}
void DisplayServerX11::keyboard_set_current_layout(int p_index) {
ERR_FAIL_INDEX(p_index, keyboard_get_layout_count());
XkbLockGroup(x11_display, XkbUseCoreKbd, p_index);
}
String DisplayServerX11::keyboard_get_layout_language(int p_index) const {
String ret;
XkbDescRec *kbd = XkbAllocKeyboard();
if (kbd) {
kbd->dpy = x11_display;
XkbGetControls(x11_display, XkbAllControlsMask, kbd);
XkbGetNames(x11_display, XkbSymbolsNameMask, kbd);
XkbGetNames(x11_display, XkbGroupNamesMask, kbd);
int _group_count = 0;
const Atom *groups = kbd->names->groups;
if (kbd->ctrls != nullptr) {
_group_count = kbd->ctrls->num_groups;
} else {
while (_group_count < XkbNumKbdGroups && groups[_group_count] != None) {
_group_count++;
}
}
Atom names = kbd->names->symbols;
if (names != None) {
Vector<String> info = get_atom_name(x11_display, names).split("+");
if (p_index >= 0 && p_index < _group_count) {
if (p_index + 1 < info.size()) {
ret = info[p_index + 1]; // Skip "pc" at the start and "inet"/"group" at the end of symbols.
} else {
ret = "en"; // No symbol for layout fallback to "en".
}
} else {
ERR_PRINT("Index " + itos(p_index) + "is out of bounds (" + itos(_group_count) + ").");
}
}
XkbFreeKeyboard(kbd, 0, true);
}
return ret.substr(0, 2);
}
String DisplayServerX11::keyboard_get_layout_name(int p_index) const {
String ret;
XkbDescRec *kbd = XkbAllocKeyboard();
if (kbd) {
kbd->dpy = x11_display;
XkbGetControls(x11_display, XkbAllControlsMask, kbd);
XkbGetNames(x11_display, XkbSymbolsNameMask, kbd);
XkbGetNames(x11_display, XkbGroupNamesMask, kbd);
int _group_count = 0;
const Atom *groups = kbd->names->groups;
if (kbd->ctrls != nullptr) {
_group_count = kbd->ctrls->num_groups;
} else {
while (_group_count < XkbNumKbdGroups && groups[_group_count] != None) {
_group_count++;
}
}
if (p_index >= 0 && p_index < _group_count) {
ret = get_atom_name(x11_display, groups[p_index]);
} else {
ERR_PRINT("Index " + itos(p_index) + "is out of bounds (" + itos(_group_count) + ").");
}
XkbFreeKeyboard(kbd, 0, true);
}
return ret;
}
Key DisplayServerX11::keyboard_get_keycode_from_physical(Key p_keycode) const {
Key modifiers = p_keycode & KeyModifierMask::MODIFIER_MASK;
Key keycode_no_mod = p_keycode & KeyModifierMask::CODE_MASK;
unsigned int xkeycode = KeyMappingX11::get_xlibcode(keycode_no_mod);
KeySym xkeysym = XkbKeycodeToKeysym(x11_display, xkeycode, 0, 0);
if (is_ascii_lower_case(xkeysym)) {
xkeysym -= ('a' - 'A');
}
Key key = KeyMappingX11::get_keycode(xkeysym);
// If not found, fallback to QWERTY.
// This should match the behavior of the event pump
if (key == Key::NONE) {
return p_keycode;
}
return (Key)(key | modifiers);
}
DisplayServerX11::Property DisplayServerX11::_read_property(Display *p_display, Window p_window, Atom p_property) {
Atom actual_type = None;
int actual_format = 0;
unsigned long nitems = 0;
unsigned long bytes_after = 0;
unsigned char *ret = nullptr;
// Keep trying to read the property until there are no bytes unread.
if (p_property != None) {
int read_bytes = 1024;
do {
if (ret != nullptr) {
XFree(ret);
}
XGetWindowProperty(p_display, p_window, p_property, 0, read_bytes, False, AnyPropertyType,
&actual_type, &actual_format, &nitems, &bytes_after,
&ret);
read_bytes *= 2;
} while (bytes_after != 0);
}
Property p = { ret, actual_format, (int)nitems, actual_type };
return p;
}
static Atom pick_target_from_list(Display *p_display, const Atom *p_list, int p_count) {
static const char *target_type = "text/uri-list";
for (int i = 0; i < p_count; i++) {
Atom atom = p_list[i];
if (atom != None && get_atom_name(p_display, atom) == target_type) {
return atom;
}
}
return None;
}
static Atom pick_target_from_atoms(Display *p_disp, Atom p_t1, Atom p_t2, Atom p_t3) {
static const char *target_type = "text/uri-list";
if (p_t1 != None && get_atom_name(p_disp, p_t1) == target_type) {
return p_t1;
}
if (p_t2 != None && get_atom_name(p_disp, p_t2) == target_type) {
return p_t2;
}
if (p_t3 != None && get_atom_name(p_disp, p_t3) == target_type) {
return p_t3;
}
return None;
}
void DisplayServerX11::_get_key_modifier_state(unsigned int p_x11_state, Ref<InputEventWithModifiers> state) {
state->set_shift_pressed((p_x11_state & ShiftMask));
state->set_ctrl_pressed((p_x11_state & ControlMask));
state->set_alt_pressed((p_x11_state & Mod1Mask /*|| p_x11_state&Mod5Mask*/)); //altgr should not count as alt
state->set_meta_pressed((p_x11_state & Mod4Mask));
}
MouseButton DisplayServerX11::_get_mouse_button_state(MouseButton p_x11_button, int p_x11_type) {
MouseButton mask = mouse_button_to_mask(p_x11_button);
if (p_x11_type == ButtonPress) {
last_button_state |= mask;
} else {
last_button_state &= ~mask;
}
return last_button_state;
}
void DisplayServerX11::_handle_key_event(WindowID p_window, XKeyEvent *p_event, LocalVector<XEvent> &p_events, uint32_t &p_event_index, bool p_echo) {
WindowData wd = windows[p_window];
// X11 functions don't know what const is
XKeyEvent *xkeyevent = p_event;
// This code was pretty difficult to write.
// The docs stink and every toolkit seems to
// do it in a different way.
/* Phase 1, obtain a proper keysym */
// This was also very difficult to figure out.
// You'd expect you could just use Keysym provided by
// XKeycodeToKeysym to obtain internationalized
// input.. WRONG!!
// you must use XLookupString (???) which not only wastes
// cycles generating an unnecessary string, but also
// still works in half the cases. (won't handle deadkeys)
// For more complex input methods (deadkeys and more advanced)
// you have to use XmbLookupString (??).
// So then you have to choose which of both results
// you want to keep.
// This is a real bizarreness and cpu waster.
KeySym keysym_keycode = 0; // keysym used to find a keycode
KeySym keysym_unicode = 0; // keysym used to find unicode
// XLookupString returns keysyms usable as nice keycodes.
char str[256 + 1];
XKeyEvent xkeyevent_no_mod = *xkeyevent;
xkeyevent_no_mod.state &= ~ShiftMask;
xkeyevent_no_mod.state &= ~ControlMask;
XLookupString(xkeyevent, str, 256, &keysym_unicode, nullptr);
XLookupString(&xkeyevent_no_mod, nullptr, 0, &keysym_keycode, nullptr);
// Meanwhile, XLookupString returns keysyms useful for unicode.
if (!xmbstring) {
// keep a temporary buffer for the string
xmbstring = (char *)memalloc(sizeof(char) * 8);
xmblen = 8;
}
if (xkeyevent->type == KeyPress && wd.xic) {
Status status;
#ifdef X_HAVE_UTF8_STRING
int utf8len = 8;
char *utf8string = (char *)memalloc(sizeof(char) * utf8len);
int utf8bytes = Xutf8LookupString(wd.xic, xkeyevent, utf8string,
utf8len - 1, &keysym_unicode, &status);
if (status == XBufferOverflow) {
utf8len = utf8bytes + 1;
utf8string = (char *)memrealloc(utf8string, utf8len);
utf8bytes = Xutf8LookupString(wd.xic, xkeyevent, utf8string,
utf8len - 1, &keysym_unicode, &status);
}
utf8string[utf8bytes] = '\0';
if (status == XLookupChars) {
bool keypress = xkeyevent->type == KeyPress;
Key keycode = KeyMappingX11::get_keycode(keysym_keycode);
Key physical_keycode = KeyMappingX11::get_scancode(xkeyevent->keycode);
if (keycode >= Key::A + 32 && keycode <= Key::Z + 32) {
keycode -= 'a' - 'A';
}
String tmp;
tmp.parse_utf8(utf8string, utf8bytes);
for (int i = 0; i < tmp.length(); i++) {
Ref<InputEventKey> k;
k.instantiate();
if (physical_keycode == Key::NONE && keycode == Key::NONE && tmp[i] == 0) {
continue;
}
if (keycode == Key::NONE) {
keycode = (Key)physical_keycode;
}
_get_key_modifier_state(xkeyevent->state, k);
k->set_window_id(p_window);
k->set_unicode(tmp[i]);
k->set_pressed(keypress);
k->set_keycode(keycode);
k->set_physical_keycode((Key)physical_keycode);
k->set_echo(false);
if (k->get_keycode() == Key::BACKTAB) {
//make it consistent across platforms.
k->set_keycode(Key::TAB);
k->set_physical_keycode(Key::TAB);
k->set_shift_pressed(true);
}
Input::get_singleton()->parse_input_event(k);
}
memfree(utf8string);
return;
}
memfree(utf8string);
#else
do {
int mnbytes = XmbLookupString(xic, xkeyevent, xmbstring, xmblen - 1, &keysym_unicode, &status);
xmbstring[mnbytes] = '\0';
if (status == XBufferOverflow) {
xmblen = mnbytes + 1;
xmbstring = (char *)memrealloc(xmbstring, xmblen);
}
} while (status == XBufferOverflow);
#endif
}
/* Phase 2, obtain a Godot keycode from the keysym */
// KeyMappingX11 just translated the X11 keysym to a PIGUI
// keysym, so it works in all platforms the same.
Key keycode = KeyMappingX11::get_keycode(keysym_keycode);
Key physical_keycode = KeyMappingX11::get_scancode(xkeyevent->keycode);
/* Phase 3, obtain a unicode character from the keysym */
// KeyMappingX11 also translates keysym to unicode.
// It does a binary search on a table to translate
// most properly.
unsigned int unicode = keysym_unicode > 0 ? KeyMappingX11::get_unicode_from_keysym(keysym_unicode) : 0;
/* Phase 4, determine if event must be filtered */
// This seems to be a side-effect of using XIM.
// XFilterEvent looks like a core X11 function,
// but it's actually just used to see if we must
// ignore a deadkey, or events XIM determines
// must not reach the actual gui.
// Guess it was a design problem of the extension
bool keypress = xkeyevent->type == KeyPress;
if (physical_keycode == Key::NONE && keycode == Key::NONE && unicode == 0) {
return;
}
if (keycode == Key::NONE) {
keycode = (Key)physical_keycode;
}
/* Phase 5, determine modifier mask */
// No problems here, except I had no way to
// know Mod1 was ALT and Mod4 was META (applekey/winkey)
// just tried Mods until i found them.
//print_verbose("mod1: "+itos(xkeyevent->state&Mod1Mask)+" mod 5: "+itos(xkeyevent->state&Mod5Mask));
Ref<InputEventKey> k;
k.instantiate();
k->set_window_id(p_window);
_get_key_modifier_state(xkeyevent->state, k);
/* Phase 6, determine echo character */
// Echo characters in X11 are a keyrelease and a keypress
// one after the other with the (almot) same timestamp.
// To detect them, i compare to the next event in list and
// check that their difference in time is below a threshold.
if (xkeyevent->type != KeyPress) {
p_echo = false;
// make sure there are events pending,
// so this call won't block.
if (p_event_index + 1 < p_events.size()) {
XEvent &peek_event = p_events[p_event_index + 1];
// I'm using a threshold of 5 msecs,
// since sometimes there seems to be a little
// jitter. I'm still not convinced that all this approach
// is correct, but the xorg developers are
// not very helpful today.
#define ABSDIFF(x, y) (((x) < (y)) ? ((y) - (x)) : ((x) - (y)))
::Time threshold = ABSDIFF(peek_event.xkey.time, xkeyevent->time);
#undef ABSDIFF
if (peek_event.type == KeyPress && threshold < 5) {
KeySym rk;
XLookupString((XKeyEvent *)&peek_event, str, 256, &rk, nullptr);
if (rk == keysym_keycode) {
// Consume to next event.
++p_event_index;
_handle_key_event(p_window, (XKeyEvent *)&peek_event, p_events, p_event_index, true);
return; //ignore current, echo next
}
}
// use the time from peek_event so it always works
}
// save the time to check for echo when keypress happens
}
/* Phase 7, send event to Window */
k->set_pressed(keypress);
if (keycode >= Key::A + 32 && keycode <= Key::Z + 32) {
keycode -= int('a' - 'A');
}
k->set_keycode(keycode);
k->set_physical_keycode((Key)physical_keycode);
k->set_unicode(unicode);
k->set_echo(p_echo);
if (k->get_keycode() == Key::BACKTAB) {
//make it consistent across platforms.
k->set_keycode(Key::TAB);
k->set_physical_keycode(Key::TAB);
k->set_shift_pressed(true);
}
//don't set mod state if modifier keys are released by themselves
//else event.is_action() will not work correctly here
if (!k->is_pressed()) {
if (k->get_keycode() == Key::SHIFT) {
k->set_shift_pressed(false);
} else if (k->get_keycode() == Key::CTRL) {
k->set_ctrl_pressed(false);
} else if (k->get_keycode() == Key::ALT) {
k->set_alt_pressed(false);
} else if (k->get_keycode() == Key::META) {
k->set_meta_pressed(false);
}
}
bool last_is_pressed = Input::get_singleton()->is_key_pressed(k->get_keycode());
if (k->is_pressed()) {
if (last_is_pressed) {
k->set_echo(true);
}
}
Input::get_singleton()->parse_input_event(k);
}
Atom DisplayServerX11::_process_selection_request_target(Atom p_target, Window p_requestor, Atom p_property, Atom p_selection) const {
if (p_target == XInternAtom(x11_display, "TARGETS", 0)) {
// Request to list all supported targets.
Atom data[9];
data[0] = XInternAtom(x11_display, "TARGETS", 0);
data[1] = XInternAtom(x11_display, "SAVE_TARGETS", 0);
data[2] = XInternAtom(x11_display, "MULTIPLE", 0);
data[3] = XInternAtom(x11_display, "UTF8_STRING", 0);
data[4] = XInternAtom(x11_display, "COMPOUND_TEXT", 0);
data[5] = XInternAtom(x11_display, "TEXT", 0);
data[6] = XA_STRING;
data[7] = XInternAtom(x11_display, "text/plain;charset=utf-8", 0);
data[8] = XInternAtom(x11_display, "text/plain", 0);
XChangeProperty(x11_display,
p_requestor,
p_property,
XA_ATOM,
32,
PropModeReplace,
(unsigned char *)&data,
sizeof(data) / sizeof(data[0]));
return p_property;
} else if (p_target == XInternAtom(x11_display, "SAVE_TARGETS", 0)) {
// Request to check if SAVE_TARGETS is supported, nothing special to do.
XChangeProperty(x11_display,
p_requestor,
p_property,
XInternAtom(x11_display, "NULL", False),
32,
PropModeReplace,
nullptr,
0);
return p_property;
} else if (p_target == XInternAtom(x11_display, "UTF8_STRING", 0) ||
p_target == XInternAtom(x11_display, "COMPOUND_TEXT", 0) ||
p_target == XInternAtom(x11_display, "TEXT", 0) ||
p_target == XA_STRING ||
p_target == XInternAtom(x11_display, "text/plain;charset=utf-8", 0) ||
p_target == XInternAtom(x11_display, "text/plain", 0)) {
// Directly using internal clipboard because we know our window
// is the owner during a selection request.
CharString clip;
static const char *target_type = "PRIMARY";
if (p_selection != None && get_atom_name(x11_display, p_selection) == target_type) {
clip = internal_clipboard_primary.utf8();
} else {
clip = internal_clipboard.utf8();
}
XChangeProperty(x11_display,
p_requestor,
p_property,
p_target,
8,
PropModeReplace,
(unsigned char *)clip.get_data(),
clip.length());
return p_property;
} else {
char *target_name = XGetAtomName(x11_display, p_target);
printf("Target '%s' not supported.\n", target_name);
if (target_name) {
XFree(target_name);
}
return None;
}
}
void DisplayServerX11::_handle_selection_request_event(XSelectionRequestEvent *p_event) const {
XEvent respond;
if (p_event->target == XInternAtom(x11_display, "MULTIPLE", 0)) {
// Request for multiple target conversions at once.
Atom atom_pair = XInternAtom(x11_display, "ATOM_PAIR", False);
respond.xselection.property = None;
Atom type;
int format;
unsigned long len;
unsigned long remaining;
unsigned char *data = nullptr;
if (XGetWindowProperty(x11_display, p_event->requestor, p_event->property, 0, LONG_MAX, False, atom_pair, &type, &format, &len, &remaining, &data) == Success) {
if ((len >= 2) && data) {
Atom *targets = (Atom *)data;
for (uint64_t i = 0; i < len; i += 2) {
Atom target = targets[i];
Atom &property = targets[i + 1];
property = _process_selection_request_target(target, p_event->requestor, property, p_event->selection);
}
XChangeProperty(x11_display,
p_event->requestor,
p_event->property,
atom_pair,
32,
PropModeReplace,
(unsigned char *)targets,
len);
respond.xselection.property = p_event->property;
}
XFree(data);
}
} else {
// Request for target conversion.
respond.xselection.property = _process_selection_request_target(p_event->target, p_event->requestor, p_event->property, p_event->selection);
}
respond.xselection.type = SelectionNotify;
respond.xselection.display = p_event->display;
respond.xselection.requestor = p_event->requestor;
respond.xselection.selection = p_event->selection;
respond.xselection.target = p_event->target;
respond.xselection.time = p_event->time;
XSendEvent(x11_display, p_event->requestor, True, NoEventMask, &respond);
XFlush(x11_display);
}
void DisplayServerX11::_xim_destroy_callback(::XIM im, ::XPointer client_data,
::XPointer call_data) {
WARN_PRINT("Input method stopped");
DisplayServerX11 *ds = reinterpret_cast<DisplayServerX11 *>(client_data);
ds->xim = nullptr;
for (KeyValue<WindowID, WindowData> &E : ds->windows) {
E.value.xic = nullptr;
}
}
void DisplayServerX11::_window_changed(XEvent *event) {
WindowID window_id = MAIN_WINDOW_ID;
// Assign the event to the relevant window
for (const KeyValue<WindowID, WindowData> &E : windows) {
if (event->xany.window == E.value.x11_window) {
window_id = E.key;
break;
}
}
Rect2i new_rect;
WindowData &wd = windows[window_id];
if (wd.x11_window != event->xany.window) { // Check if the correct window, in case it was not main window or anything else
return;
}
{
//the position in xconfigure is not useful here, obtain it manually
int x, y;
Window child;
XTranslateCoordinates(x11_display, wd.x11_window, DefaultRootWindow(x11_display), 0, 0, &x, &y, &child);
new_rect.position.x = x;
new_rect.position.y = y;
new_rect.size.width = event->xconfigure.width;
new_rect.size.height = event->xconfigure.height;
}
if (new_rect == Rect2i(wd.position, wd.size)) {
return;
}
if (wd.xic) {
// Not portable.
window_set_ime_position(Point2(0, 1));
}
wd.position = new_rect.position;
wd.size = new_rect.size;
#if defined(VULKAN_ENABLED)
if (context_vulkan) {
context_vulkan->window_resize(window_id, wd.size.width, wd.size.height);
}
#endif
#if defined(GLES3_ENABLED)
if (gl_manager) {
gl_manager->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.call((const Variant **)&rectp, 1, ret, ce);
}
}
void DisplayServerX11::_dispatch_input_events(const Ref<InputEvent> &p_event) {
static_cast<DisplayServerX11 *>(get_singleton())->_dispatch_input_event(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)) {
// Redirect keyboard input to active popup.
if (windows.has(E->get())) {
Callable callable = windows[E->get()].input_event_callback;
if (callable.is_valid()) {
callable.call((const Variant **)&evp, 1, ret, ce);
}
}
return;
}
}
Ref<InputEventFromWindow> event_from_window = p_event;
if (event_from_window.is_valid() && event_from_window->get_window_id() != INVALID_WINDOW_ID) {
// Send to a single window.
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.call((const Variant **)&evp, 1, ret, ce);
}
}
} else {
// Send to all windows.
for (KeyValue<WindowID, WindowData> &E : windows) {
Callable callable = E.value.input_event_callback;
if (callable.is_valid()) {
callable.call((const Variant **)&evp, 1, ret, ce);
}
}
}
}
void DisplayServerX11::_send_window_event(const WindowData &wd, WindowEvent p_event) {
if (!wd.event_callback.is_null()) {
Variant event = int(p_event);
Variant *eventp = &event;
Variant ret;
Callable::CallError ce;
wd.event_callback.call((const Variant **)&eventp, 1, ret, ce);
}
}
void DisplayServerX11::_poll_events_thread(void *ud) {
DisplayServerX11 *display_server = static_cast<DisplayServerX11 *>(ud);
display_server->_poll_events();
}
Bool DisplayServerX11::_predicate_all_events(Display *display, XEvent *event, XPointer arg) {
// Just accept all events.
return True;
}
bool DisplayServerX11::_wait_for_events() const {
int x11_fd = ConnectionNumber(x11_display);
fd_set in_fds;
XFlush(x11_display);
FD_ZERO(&in_fds);
FD_SET(x11_fd, &in_fds);
struct timeval tv;
tv.tv_usec = 0;
tv.tv_sec = 1;
// Wait for next event or timeout.
int num_ready_fds = select(x11_fd + 1, &in_fds, nullptr, nullptr, &tv);
if (num_ready_fds > 0) {
// Event received.
return true;
} else {
// Error or timeout.
if (num_ready_fds < 0) {
ERR_PRINT("_wait_for_events: select error: " + itos(errno));
}
return false;
}
}
void DisplayServerX11::_poll_events() {
while (!events_thread_done.is_set()) {
_wait_for_events();
// Process events from the queue.
{
MutexLock mutex_lock(events_mutex);
_check_pending_events(polled_events);
}
}
}
void DisplayServerX11::_check_pending_events(LocalVector<XEvent> &r_events) {
// Flush to make sure to gather all pending events.
XFlush(x11_display);
// Non-blocking wait for next event and remove it from the queue.
XEvent ev;
while (XCheckIfEvent(x11_display, &ev, _predicate_all_events, nullptr)) {
// Check if the input manager wants to process the event.
if (XFilterEvent(&ev, None)) {
// Event has been filtered by the Input Manager,
// it has to be ignored and a new one will be received.
continue;
}
// Handle selection request events directly in the event thread, because
// communication through the x server takes several events sent back and forth
// and we don't want to block other programs while processing only one each frame.
if (ev.type == SelectionRequest) {
_handle_selection_request_event(&(ev.xselectionrequest));
continue;
}
r_events.push_back(ev);
}
}
DisplayServer::WindowID DisplayServerX11::window_get_active_popup() const {
const List<WindowID>::Element *E = popup_list.back();
if (E) {
return E->get();
} else {
return INVALID_WINDOW_ID;
}
}
void DisplayServerX11::window_set_popup_safe_rect(WindowID p_window, const Rect2i &p_rect) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND(!windows.has(p_window));
WindowData &wd = windows[p_window];
wd.parent_safe_rect = p_rect;
}
Rect2i DisplayServerX11::window_get_popup_safe_rect(WindowID p_window) const {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND_V(!windows.has(p_window), Rect2i());
const WindowData &wd = windows[p_window];
return wd.parent_safe_rect;
}
void DisplayServerX11::popup_open(WindowID p_window) {
_THREAD_SAFE_METHOD_
WindowData &wd = windows[p_window];
if (wd.is_popup) {
// Find current popup parent, or root popup if new window is not transient.
List<WindowID>::Element *C = nullptr;
List<WindowID>::Element *E = popup_list.back();
while (E) {
if (wd.transient_parent != E->get() || wd.transient_parent == INVALID_WINDOW_ID) {
C = E;
E = E->prev();
} else {
break;
}
}
if (C) {
_send_window_event(windows[C->get()], DisplayServerX11::WINDOW_EVENT_CLOSE_REQUEST);
}
time_since_popup = OS::get_singleton()->get_ticks_msec();
popup_list.push_back(p_window);
}
}
void DisplayServerX11::popup_close(WindowID p_window) {
_THREAD_SAFE_METHOD_
List<WindowID>::Element *E = popup_list.find(p_window);
while (E) {
List<WindowID>::Element *F = E->next();
WindowID win_id = E->get();
popup_list.erase(E);
_send_window_event(windows[win_id], DisplayServerX11::WINDOW_EVENT_CLOSE_REQUEST);
E = F;
}
}
bool DisplayServerX11::mouse_process_popups() {
_THREAD_SAFE_METHOD_
if (popup_list.is_empty()) {
return false;
}
uint64_t delta = OS::get_singleton()->get_ticks_msec() - time_since_popup;
if (delta < 250) {
return false;
}
int number_of_screens = XScreenCount(x11_display);
bool closed = false;
for (int i = 0; i < number_of_screens; i++) {
Window root, child;
int root_x, root_y, win_x, win_y;
unsigned int mask;
if (XQueryPointer(x11_display, XRootWindow(x11_display, i), &root, &child, &root_x, &root_y, &win_x, &win_y, &mask)) {
XWindowAttributes root_attrs;
XGetWindowAttributes(x11_display, root, &root_attrs);
Vector2i pos = Vector2i(root_attrs.x + root_x, root_attrs.y + root_y);
if ((pos != last_mouse_monitor_pos) || (mask != last_mouse_monitor_mask)) {
if (((mask & Button1Mask) || (mask & Button2Mask) || (mask & Button3Mask) || (mask & Button4Mask) || (mask & Button5Mask))) {
List<WindowID>::Element *C = nullptr;
List<WindowID>::Element *E = popup_list.back();
// Find top popup to close.
while (E) {
// Popup window area.
Rect2i win_rect = Rect2i(window_get_position(E->get()), window_get_size(E->get()));
// Area of the parent window, which responsible for opening sub-menu.
Rect2i safe_rect = window_get_popup_safe_rect(E->get());
if (win_rect.has_point(pos)) {
break;
} else if (safe_rect != Rect2i() && safe_rect.has_point(pos)) {
break;
} else {
C = E;
E = E->prev();
}
}
if (C) {
_send_window_event(windows[C->get()], DisplayServerX11::WINDOW_EVENT_CLOSE_REQUEST);
closed = true;
}
}
}
last_mouse_monitor_mask = mask;
last_mouse_monitor_pos = pos;
}
}
return closed;
}
void DisplayServerX11::process_events() {
_THREAD_SAFE_METHOD_
#ifdef DISPLAY_SERVER_X11_DEBUG_LOGS_ENABLED
static int frame = 0;
++frame;
#endif
bool ignore_events = mouse_process_popups();
if (app_focused) {
//verify that one of the windows has focus, else send focus out notification
bool focus_found = false;
for (const KeyValue<WindowID, WindowData> &E : windows) {
if (E.value.focused) {
focus_found = true;
break;
}
}
if (!focus_found) {
uint64_t delta = OS::get_singleton()->get_ticks_msec() - time_since_no_focus;
if (delta > 250) {
//X11 can go between windows and have no focus for a while, when creating them or something else. Use this as safety to avoid unnecessary focus in/outs.
if (OS::get_singleton()->get_main_loop()) {
DEBUG_LOG_X11("All focus lost, triggering NOTIFICATION_APPLICATION_FOCUS_OUT\n");
OS::get_singleton()->get_main_loop()->notification(MainLoop::NOTIFICATION_APPLICATION_FOCUS_OUT);
}
app_focused = false;
}
} else {
time_since_no_focus = OS::get_singleton()->get_ticks_msec();
}
}
do_mouse_warp = false;
// Is the current mouse mode one where it needs to be grabbed.
bool mouse_mode_grab = mouse_mode == MOUSE_MODE_CAPTURED || mouse_mode == MOUSE_MODE_CONFINED || mouse_mode == MOUSE_MODE_CONFINED_HIDDEN;
xi.pressure = 0;
xi.tilt = Vector2();
xi.pressure_supported = false;
LocalVector<XEvent> events;
{
// Block events polling while flushing events.
MutexLock mutex_lock(events_mutex);
events = polled_events;
polled_events.clear();
// Check for more pending events to avoid an extra frame delay.
_check_pending_events(events);
}
for (uint32_t event_index = 0; event_index < events.size(); ++event_index) {
XEvent &event = events[event_index];
if (ignore_events) {
XFreeEventData(x11_display, &event.xcookie);
continue;
}
WindowID window_id = MAIN_WINDOW_ID;
// Assign the event to the relevant window
for (const KeyValue<WindowID, WindowData> &E : windows) {
if (event.xany.window == E.value.x11_window) {
window_id = E.key;
break;
}
}
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: {
_refresh_device_info();
} break;
case XI_RawMotion: {
XIRawEvent *raw_event = (XIRawEvent *)event_data;
int device_id = raw_event->deviceid;
// Determine the axis used (called valuators in XInput for some forsaken reason)
// Mask is a bitmask indicating which axes are involved.
// We are interested in the values of axes 0 and 1.
if (raw_event->valuators.mask_len <= 0) {
break;
}
const double *values = raw_event->raw_values;
double rel_x = 0.0;
double rel_y = 0.0;
if (XIMaskIsSet(raw_event->valuators.mask, VALUATOR_ABSX)) {
rel_x = *values;
values++;
}
if (XIMaskIsSet(raw_event->valuators.mask, VALUATOR_ABSY)) {
rel_y = *values;
values++;
}
if (XIMaskIsSet(raw_event->valuators.mask, VALUATOR_PRESSURE)) {
HashMap<int, Vector2>::Iterator pen_pressure = xi.pen_pressure_range.find(device_id);
if (pen_pressure) {
Vector2 pen_pressure_range = pen_pressure->value;
if (pen_pressure_range != Vector2()) {
xi.pressure_supported = true;
xi.pressure = (*values - pen_pressure_range[0]) /
(pen_pressure_range[1] - pen_pressure_range[0]);
}
}
values++;
}
if (XIMaskIsSet(raw_event->valuators.mask, VALUATOR_TILTX)) {
HashMap<int, Vector2>::Iterator pen_tilt_x = xi.pen_tilt_x_range.find(device_id);
if (pen_tilt_x) {
Vector2 pen_tilt_x_range = pen_tilt_x->value;
if (pen_tilt_x_range[0] != 0 && *values < 0) {
xi.tilt.x = *values / -pen_tilt_x_range[0];
} else if (pen_tilt_x_range[1] != 0) {
xi.tilt.x = *values / pen_tilt_x_range[1];
}
}
values++;
}
if (XIMaskIsSet(raw_event->valuators.mask, VALUATOR_TILTY)) {
HashMap<int, Vector2>::Iterator pen_tilt_y = xi.pen_tilt_y_range.find(device_id);
if (pen_tilt_y) {
Vector2 pen_tilt_y_range = pen_tilt_y->value;
if (pen_tilt_y_range[0] != 0 && *values < 0) {
xi.tilt.y = *values / -pen_tilt_y_range[0];
} else if (pen_tilt_y_range[1] != 0) {
xi.tilt.y = *values / pen_tilt_y_range[1];
}
}
values++;
}
// https://bugs.freedesktop.org/show_bug.cgi?id=71609
// http://lists.libsdl.org/pipermail/commits-libsdl.org/2015-June/000282.html
if (raw_event->time == xi.last_relative_time && rel_x == xi.relative_motion.x && rel_y == xi.relative_motion.y) {
break; // Flush duplicate to avoid overly fast motion
}
xi.old_raw_pos.x = xi.raw_pos.x;
xi.old_raw_pos.y = xi.raw_pos.y;
xi.raw_pos.x = rel_x;
xi.raw_pos.y = rel_y;
HashMap<int, Vector2>::Iterator abs_info = xi.absolute_devices.find(device_id);
if (abs_info) {
// Absolute mode device
Vector2 mult = abs_info->value;
xi.relative_motion.x += (xi.raw_pos.x - xi.old_raw_pos.x) * mult.x;
xi.relative_motion.y += (xi.raw_pos.y - xi.old_raw_pos.y) * mult.y;
} else {
// Relative mode device
xi.relative_motion.x = xi.raw_pos.x;
xi.relative_motion.y = xi.raw_pos.y;
}
xi.last_relative_time = raw_event->time;
} break;
#ifdef TOUCH_ENABLED
case XI_TouchBegin:
case XI_TouchEnd: {
bool is_begin = event_data->evtype == XI_TouchBegin;
Ref<InputEventScreenTouch> st;
st.instantiate();
st->set_window_id(window_id);
st->set_index(index);
st->set_position(pos);
st->set_pressed(is_begin);
if (is_begin) {
if (xi.state.has(index)) { // Defensive
break;
}
xi.state[index] = pos;
if (xi.state.size() == 1) {
// X11 may send a motion event when a touch gesture begins, that would result
// in a spurious mouse motion event being sent to Godot; remember it to be able to filter it out
xi.mouse_pos_to_filter = pos;
}
Input::get_singleton()->parse_input_event(st);
} else {
if (!xi.state.has(index)) { // Defensive
break;
}
xi.state.erase(index);
Input::get_singleton()->parse_input_event(st);
}
} break;
case XI_TouchUpdate: {
HashMap<int, Vector2>::Iterator curr_pos_elem = xi.state.find(index);
if (!curr_pos_elem) { // Defensive
break;
}
if (curr_pos_elem->value != pos) {
Ref<InputEventScreenDrag> sd;
sd.instantiate();
sd->set_window_id(window_id);
sd->set_index(index);
sd->set_position(pos);
sd->set_relative(pos - curr_pos_elem->value);
Input::get_singleton()->parse_input_event(sd);
curr_pos_elem->value = pos;
}
} break;
#endif
}
}
}
XFreeEventData(x11_display, &event.xcookie);
switch (event.type) {
case MapNotify: {
DEBUG_LOG_X11("[%u] MapNotify window=%lu (%u) \n", frame, event.xmap.window, window_id);
const WindowData &wd = windows[window_id];
// Set focus when menu window is started.
// RevertToPointerRoot is used to make sure we don't lose all focus in case
// a subwindow and its parent are both destroyed.
if (!wd.no_focus && !wd.is_popup) {
XSetInputFocus(x11_display, wd.x11_window, RevertToPointerRoot, CurrentTime);
}
} break;
case Expose: {
DEBUG_LOG_X11("[%u] Expose window=%lu (%u), count='%u' \n", frame, event.xexpose.window, window_id, event.xexpose.count);
Main::force_redraw();
} break;
case NoExpose: {
DEBUG_LOG_X11("[%u] NoExpose drawable=%lu (%u) \n", frame, event.xnoexpose.drawable, window_id);
windows[window_id].minimized = true;
} break;
case VisibilityNotify: {
DEBUG_LOG_X11("[%u] VisibilityNotify window=%lu (%u), state=%u \n", frame, event.xvisibility.window, window_id, event.xvisibility.state);
XVisibilityEvent *visibility = (XVisibilityEvent *)&event;
windows[window_id].minimized = (visibility->state == VisibilityFullyObscured);
} break;
case LeaveNotify: {
DEBUG_LOG_X11("[%u] LeaveNotify window=%lu (%u), mode='%u' \n", frame, event.xcrossing.window, window_id, event.xcrossing.mode);
if (!mouse_mode_grab) {
_send_window_event(windows[window_id], WINDOW_EVENT_MOUSE_EXIT);
}
} break;
case EnterNotify: {
DEBUG_LOG_X11("[%u] EnterNotify window=%lu (%u), mode='%u' \n", frame, event.xcrossing.window, window_id, event.xcrossing.mode);
if (!mouse_mode_grab) {
_send_window_event(windows[window_id], WINDOW_EVENT_MOUSE_ENTER);
}
} break;
case FocusIn: {
DEBUG_LOG_X11("[%u] FocusIn window=%lu (%u), mode='%u' \n", frame, event.xfocus.window, window_id, event.xfocus.mode);
WindowData &wd = windows[window_id];
last_focused_window = window_id;
wd.focused = true;
if (wd.xic) {
// Block events polling while changing input focus
// because it triggers some event polling internally.
MutexLock mutex_lock(events_mutex);
XSetICFocus(wd.xic);
}
// Keep track of focus order for overlapping windows.
static unsigned int focus_order = 0;
wd.focus_order = ++focus_order;
_send_window_event(wd, WINDOW_EVENT_FOCUS_IN);
if (mouse_mode_grab) {
// Show and update the cursor if confined and the window regained focus.
for (const KeyValue<WindowID, WindowData> &E : windows) {
if (mouse_mode == MOUSE_MODE_CONFINED) {
XUndefineCursor(x11_display, E.value.x11_window);
} else if (mouse_mode == MOUSE_MODE_CAPTURED || mouse_mode == MOUSE_MODE_CONFINED_HIDDEN) { // Or re-hide it.
XDefineCursor(x11_display, E.value.x11_window, null_cursor);
}
XGrabPointer(
x11_display, E.value.x11_window, True,
ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
GrabModeAsync, GrabModeAsync, E.value.x11_window, None, CurrentTime);
}
}
#ifdef TOUCH_ENABLED
// Grab touch devices to avoid OS gesture interference
/*for (int i = 0; i < xi.touch_devices.size(); ++i) {
XIGrabDevice(x11_display, xi.touch_devices[i], x11_window, CurrentTime, None, XIGrabModeAsync, XIGrabModeAsync, False, &xi.touch_event_mask);
}*/
#endif
if (!app_focused) {
if (OS::get_singleton()->get_main_loop()) {
OS::get_singleton()->get_main_loop()->notification(MainLoop::NOTIFICATION_APPLICATION_FOCUS_IN);
}
app_focused = true;
}
} break;
case FocusOut: {
DEBUG_LOG_X11("[%u] FocusOut window=%lu (%u), mode='%u' \n", frame, event.xfocus.window, window_id, event.xfocus.mode);
WindowData &wd = windows[window_id];
wd.focused = false;
if (wd.xic) {
// Block events polling while changing input focus
// because it triggers some event polling internally.
MutexLock mutex_lock(events_mutex);
XUnsetICFocus(wd.xic);
}
Input::get_singleton()->release_pressed_events();
_send_window_event(wd, WINDOW_EVENT_FOCUS_OUT);
if (mouse_mode_grab) {
for (const KeyValue<WindowID, WindowData> &E : windows) {
//dear X11, I try, I really try, but you never work, you do whatever you want.
if (mouse_mode == MOUSE_MODE_CAPTURED) {
// Show the cursor if we're in captured mode so it doesn't look weird.
XUndefineCursor(x11_display, E.value.x11_window);
}
}
XUngrabPointer(x11_display, CurrentTime);
}
#ifdef TOUCH_ENABLED
// Ungrab touch devices so input works as usual while we are unfocused
/*for (int i = 0; i < xi.touch_devices.size(); ++i) {
XIUngrabDevice(x11_display, xi.touch_devices[i], CurrentTime);
}*/
// Release every pointer to avoid sticky points
for (const KeyValue<int, Vector2> &E : xi.state) {
Ref<InputEventScreenTouch> st;
st.instantiate();
st->set_index(E.key);
st->set_window_id(window_id);
st->set_position(E.value);
Input::get_singleton()->parse_input_event(st);
}
xi.state.clear();
#endif
} break;
case ConfigureNotify: {
DEBUG_LOG_X11("[%u] ConfigureNotify window=%lu (%u), event=%lu, above=%lu, override_redirect=%u \n", frame, event.xconfigure.window, window_id, event.xconfigure.event, event.xconfigure.above, event.xconfigure.override_redirect);
const WindowData &wd = windows[window_id];
XWindowAttributes xwa;
XSync(x11_display, False);
XGetWindowAttributes(x11_display, wd.x11_window, &xwa);
// Set focus when menu window is re-used.
// RevertToPointerRoot is used to make sure we don't lose all focus in case
// a subwindow and its parent are both destroyed.
if ((xwa.map_state == IsViewable) && !wd.no_focus && !wd.is_popup) {
XSetInputFocus(x11_display, wd.x11_window, RevertToPointerRoot, CurrentTime);
}
_window_changed(&event);
} break;
case ButtonPress:
case ButtonRelease: {
/* exit in case of a mouse button press */
last_timestamp = event.xbutton.time;
if (mouse_mode == MOUSE_MODE_CAPTURED) {
event.xbutton.x = last_mouse_pos.x;
event.xbutton.y = last_mouse_pos.y;
}
Ref<InputEventMouseButton> mb;
mb.instantiate();
mb->set_window_id(window_id);
_get_key_modifier_state(event.xbutton.state, mb);
mb->set_button_index((MouseButton)event.xbutton.button);
if (mb->get_button_index() == MouseButton::RIGHT) {
mb->set_button_index(MouseButton::MIDDLE);
} else if (mb->get_button_index() == MouseButton::MIDDLE) {
mb->set_button_index(MouseButton::RIGHT);
}
mb->set_button_mask(_get_mouse_button_state(mb->get_button_index(), event.xbutton.type));
mb->set_position(Vector2(event.xbutton.x, event.xbutton.y));
mb->set_global_position(mb->get_position());
mb->set_pressed((event.type == ButtonPress));
const WindowData &wd = windows[window_id];
if (event.type == ButtonPress) {
DEBUG_LOG_X11("[%u] ButtonPress window=%lu (%u), button_index=%u \n", frame, event.xbutton.window, window_id, mb->get_button_index());
// Ensure window focus on click.
// RevertToPointerRoot is used to make sure we don't lose all focus in case
// a subwindow and its parent are both destroyed.
if (!wd.no_focus && !wd.is_popup) {
XSetInputFocus(x11_display, wd.x11_window, RevertToPointerRoot, CurrentTime);
}
uint64_t diff = OS::get_singleton()->get_ticks_usec() / 1000 - last_click_ms;
if (mb->get_button_index() == last_click_button_index) {
if (diff < 400 && Vector2(last_click_pos).distance_to(Vector2(event.xbutton.x, event.xbutton.y)) < 5) {
last_click_ms = 0;
last_click_pos = Point2i(-100, -100);
last_click_button_index = MouseButton::NONE;
mb->set_double_click(true);
}
} else if (mb->get_button_index() < MouseButton::WHEEL_UP || mb->get_button_index() > MouseButton::WHEEL_RIGHT) {
last_click_button_index = mb->get_button_index();
}
if (!mb->is_double_click()) {
last_click_ms += diff;
last_click_pos = Point2i(event.xbutton.x, event.xbutton.y);
}
} else {
DEBUG_LOG_X11("[%u] ButtonRelease window=%lu (%u), button_index=%u \n", frame, event.xbutton.window, window_id, mb->get_button_index());
if (!wd.focused) {
// Propagate the event to the focused window,
// because it's received only on the topmost window.
// Note: This is needed for drag & drop to work between windows,
// because the engine expects events to keep being processed
// on the same window dragging started.
for (const KeyValue<WindowID, WindowData> &E : windows) {
const WindowData &wd_other = E.value;
WindowID window_id_other = E.key;
if (wd_other.focused) {
if (window_id_other != window_id) {
int x, y;
Window child;
XTranslateCoordinates(x11_display, wd.x11_window, wd_other.x11_window, event.xbutton.x, event.xbutton.y, &x, &y, &child);
mb->set_window_id(window_id_other);
mb->set_position(Vector2(x, y));
mb->set_global_position(mb->get_position());
Input::get_singleton()->parse_input_event(mb);
}
break;
}
}
}
}
Input::get_singleton()->parse_input_event(mb);
} break;
case MotionNotify: {
// The X11 API requires filtering one-by-one through the motion
// notify events, in order to figure out which event is the one
// generated by warping the mouse pointer.
WindowID focused_window_id = windows.has(last_focused_window) ? last_focused_window : MAIN_WINDOW_ID;
while (true) {
if (mouse_mode == MOUSE_MODE_CAPTURED && event.xmotion.x == windows[focused_window_id].size.width / 2 && event.xmotion.y == windows[focused_window_id].size.height / 2) {
//this is likely the warp event since it was warped here
center = Vector2(event.xmotion.x, event.xmotion.y);
break;
}
if (event_index + 1 < events.size()) {
const XEvent &next_event = events[event_index + 1];
if (next_event.type == MotionNotify) {
++event_index;
event = next_event;
} else {
break;
}
} else {
break;
}
}
last_timestamp = event.xmotion.time;
// Motion is also simple.
// A little hack is in order
// to be able to send relative motion events.
Point2i pos(event.xmotion.x, event.xmotion.y);
// Avoidance of spurious mouse motion (see handling of touch)
bool filter = false;
// Adding some tolerance to match better Point2i to Vector2
if (xi.state.size() && Vector2(pos).distance_squared_to(xi.mouse_pos_to_filter) < 2) {
filter = true;
}
// Invalidate to avoid filtering a possible legitimate similar event coming later
xi.mouse_pos_to_filter = Vector2(1e10, 1e10);
if (filter) {
break;
}
const WindowData &wd = windows[window_id];
bool focused = wd.focused;
if (mouse_mode == MOUSE_MODE_CAPTURED) {
if (xi.relative_motion.x == 0 && xi.relative_motion.y == 0) {
break;
}
Point2i new_center = pos;
pos = last_mouse_pos + xi.relative_motion;
center = new_center;
do_mouse_warp = focused; // warp the cursor if we're focused in
}
if (!last_mouse_pos_valid) {
last_mouse_pos = pos;
last_mouse_pos_valid = true;
}
// Hackish but relative mouse motion is already handled in the RawMotion event.
// RawMotion does not provide the absolute mouse position (whereas MotionNotify does).
// Therefore, RawMotion cannot be the authority on absolute mouse position.
// RawMotion provides more precision than MotionNotify, which doesn't sense subpixel motion.
// Therefore, MotionNotify cannot be the authority on relative mouse motion.
// This means we need to take a combined approach...
Point2i rel;
// Only use raw input if in capture mode. Otherwise use the classic behavior.
if (mouse_mode == MOUSE_MODE_CAPTURED) {
rel = xi.relative_motion;
} else {
rel = pos - last_mouse_pos;
}
// Reset to prevent lingering motion
xi.relative_motion.x = 0;
xi.relative_motion.y = 0;
if (mouse_mode == MOUSE_MODE_CAPTURED) {
pos = Point2i(windows[focused_window_id].size.width / 2, windows[focused_window_id].size.height / 2);
}
Ref<InputEventMouseMotion> mm;
mm.instantiate();
mm->set_window_id(window_id);
if (xi.pressure_supported) {
mm->set_pressure(xi.pressure);
} else {
mm->set_pressure(bool(mouse_get_button_state() & MouseButton::MASK_LEFT) ? 1.0f : 0.0f);
}
mm->set_tilt(xi.tilt);
_get_key_modifier_state(event.xmotion.state, mm);
mm->set_button_mask((MouseButton)mouse_get_button_state());
mm->set_position(pos);
mm->set_global_position(pos);
mm->set_velocity(Input::get_singleton()->get_last_mouse_velocity());
mm->set_relative(rel);
last_mouse_pos = pos;
// printf("rel: %d,%d\n", rel.x, rel.y );
// Don't propagate the motion event unless we have focus
// this is so that the relative motion doesn't get messed up
// after we regain focus.
if (focused) {
Input::get_singleton()->parse_input_event(mm);
} else {
// Propagate the event to the focused window,
// because it's received only on the topmost window.
// Note: This is needed for drag & drop to work between windows,
// because the engine expects events to keep being processed
// on the same window dragging started.
for (const KeyValue<WindowID, WindowData> &E : windows) {
const WindowData &wd_other = E.value;
if (wd_other.focused) {
int x, y;
Window child;
XTranslateCoordinates(x11_display, wd.x11_window, wd_other.x11_window, event.xmotion.x, event.xmotion.y, &x, &y, &child);
Point2i pos_focused(x, y);
mm->set_window_id(E.key);
mm->set_position(pos_focused);
mm->set_global_position(pos_focused);
mm->set_velocity(Input::get_singleton()->get_last_mouse_velocity());
Input::get_singleton()->parse_input_event(mm);
break;
}
}
}
} break;
case KeyPress:
case KeyRelease: {
#ifdef DISPLAY_SERVER_X11_DEBUG_LOGS_ENABLED
if (event.type == KeyPress) {
DEBUG_LOG_X11("[%u] KeyPress window=%lu (%u), keycode=%u, time=%lu \n", frame, event.xkey.window, window_id, event.xkey.keycode, event.xkey.time);
} else {
DEBUG_LOG_X11("[%u] KeyRelease window=%lu (%u), keycode=%u, time=%lu \n", frame, event.xkey.window, window_id, event.xkey.keycode, event.xkey.time);
}
#endif
last_timestamp = event.xkey.time;
// key event is a little complex, so
// it will be handled in its own function.
_handle_key_event(window_id, &event.xkey, events, event_index);
} break;
case SelectionNotify:
if (event.xselection.target == requested) {
Property p = _read_property(x11_display, windows[window_id].x11_window, XInternAtom(x11_display, "PRIMARY", 0));
Vector<String> files = String((char *)p.data).split("\n", false);
XFree(p.data);
for (int i = 0; i < files.size(); i++) {
files.write[i] = files[i].replace("file://", "").uri_decode().strip_edges();
}
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.call((const Variant **)&vp, 1, ret, ce);
}
//Reply that all is well.
XClientMessageEvent m;
memset(&m, 0, sizeof(m));
m.type = ClientMessage;
m.display = x11_display;
m.window = xdnd_source_window;
m.message_type = xdnd_finished;
m.format = 32;
m.data.l[0] = windows[window_id].x11_window;
m.data.l[1] = 1;
m.data.l[2] = xdnd_action_copy; //We only ever copy.
XSendEvent(x11_display, xdnd_source_window, False, NoEventMask, (XEvent *)&m);
}
break;
case ClientMessage:
if ((unsigned int)event.xclient.data.l[0] == (unsigned int)wm_delete) {
_send_window_event(windows[window_id], WINDOW_EVENT_CLOSE_REQUEST);
}
else if ((unsigned int)event.xclient.message_type == (unsigned int)xdnd_enter) {
//File(s) have been dragged over the window, check for supported target (text/uri-list)
xdnd_version = (event.xclient.data.l[1] >> 24);
Window source = event.xclient.data.l[0];
bool more_than_3 = event.xclient.data.l[1] & 1;
if (more_than_3) {
Property p = _read_property(x11_display, source, XInternAtom(x11_display, "XdndTypeList", False));
requested = pick_target_from_list(x11_display, (Atom *)p.data, p.nitems);
XFree(p.data);
} else {
requested = pick_target_from_atoms(x11_display, event.xclient.data.l[2], event.xclient.data.l[3], event.xclient.data.l[4]);
}
} else if ((unsigned int)event.xclient.message_type == (unsigned int)xdnd_position) {
//xdnd position event, reply with an XDND status message
//just depending on type of data for now
XClientMessageEvent m;
memset(&m, 0, sizeof(m));
m.type = ClientMessage;
m.display = event.xclient.display;
m.window = event.xclient.data.l[0];
m.message_type = xdnd_status;
m.format = 32;
m.data.l[0] = windows[window_id].x11_window;
m.data.l[1] = (requested != None);
m.data.l[2] = 0; //empty rectangle
m.data.l[3] = 0;
m.data.l[4] = xdnd_action_copy;
XSendEvent(x11_display, event.xclient.data.l[0], False, NoEventMask, (XEvent *)&m);
XFlush(x11_display);
} else if ((unsigned int)event.xclient.message_type == (unsigned int)xdnd_drop) {
if (requested != None) {
xdnd_source_window = event.xclient.data.l[0];
if (xdnd_version >= 1) {
XConvertSelection(x11_display, xdnd_selection, requested, XInternAtom(x11_display, "PRIMARY", 0), windows[window_id].x11_window, event.xclient.data.l[2]);
} else {
XConvertSelection(x11_display, xdnd_selection, requested, XInternAtom(x11_display, "PRIMARY", 0), windows[window_id].x11_window, CurrentTime);
}
} else {
//Reply that we're not interested.
XClientMessageEvent m;
memset(&m, 0, sizeof(m));
m.type = ClientMessage;
m.display = event.xclient.display;
m.window = event.xclient.data.l[0];
m.message_type = xdnd_finished;
m.format = 32;
m.data.l[0] = windows[window_id].x11_window;
m.data.l[1] = 0;
m.data.l[2] = None; //Failed.
XSendEvent(x11_display, event.xclient.data.l[0], False, NoEventMask, (XEvent *)&m);
}
}
break;
default:
break;
}
}
XFlush(x11_display);
if (do_mouse_warp) {
XWarpPointer(x11_display, None, windows[MAIN_WINDOW_ID].x11_window,
0, 0, 0, 0, (int)windows[MAIN_WINDOW_ID].size.width / 2, (int)windows[MAIN_WINDOW_ID].size.height / 2);
/*
Window root, child;
int root_x, root_y;
int win_x, win_y;
unsigned int mask;
XQueryPointer( x11_display, x11_window, &root, &child, &root_x, &root_y, &win_x, &win_y, &mask );
printf("Root: %d,%d\n", root_x, root_y);
printf("Win: %d,%d\n", win_x, win_y);
*/
}
Input::get_singleton()->flush_buffered_events();
}
void DisplayServerX11::release_rendering_thread() {
#if defined(GLES3_ENABLED)
gl_manager->release_current();
#endif
}
void DisplayServerX11::make_rendering_thread() {
#if defined(GLES3_ENABLED)
gl_manager->make_current();
#endif
}
void DisplayServerX11::swap_buffers() {
#if defined(GLES3_ENABLED)
if (gl_manager) {
gl_manager->swap_buffers();
}
#endif
}
void DisplayServerX11::_update_context(WindowData &wd) {
XClassHint *classHint = XAllocClassHint();
if (classHint) {
CharString name_str;
switch (context) {
case CONTEXT_EDITOR:
name_str = "Godot_Editor";
break;
case CONTEXT_PROJECTMAN:
name_str = "Godot_ProjectList";
break;
case CONTEXT_ENGINE:
name_str = "Godot_Engine";
break;
}
CharString class_str;
if (context == CONTEXT_ENGINE) {
String config_name = GLOBAL_GET("application/config/name");
if (config_name.length() == 0) {
class_str = "Godot_Engine";
} else {
class_str = config_name.utf8();
}
} else {
class_str = "Godot";
}
classHint->res_class = class_str.ptrw();
classHint->res_name = name_str.ptrw();
XSetClassHint(x11_display, wd.x11_window, classHint);
XFree(classHint);
}
}
void DisplayServerX11::set_context(Context p_context) {
_THREAD_SAFE_METHOD_
context = p_context;
for (KeyValue<WindowID, WindowData> &E : windows) {
_update_context(E.value);
}
}
void DisplayServerX11::set_native_icon(const String &p_filename) {
WARN_PRINT("Native icon not supported by this display server.");
}
bool g_set_icon_error = false;
int set_icon_errorhandler(Display *dpy, XErrorEvent *ev) {
g_set_icon_error = true;
return 0;
}
void DisplayServerX11::set_icon(const Ref<Image> &p_icon) {
_THREAD_SAFE_METHOD_
WindowData &wd = windows[MAIN_WINDOW_ID];
int (*oldHandler)(Display *, XErrorEvent *) = XSetErrorHandler(&set_icon_errorhandler);
Atom net_wm_icon = XInternAtom(x11_display, "_NET_WM_ICON", False);
if (p_icon.is_valid()) {
Ref<Image> img = p_icon->duplicate();
img->convert(Image::FORMAT_RGBA8);
while (true) {
int w = img->get_width();
int h = img->get_height();
if (g_set_icon_error) {
g_set_icon_error = false;
WARN_PRINT("Icon too large, attempting to resize icon.");
int new_width, new_height;
if (w > h) {
new_width = w / 2;
new_height = h * new_width / w;
} else {
new_height = h / 2;
new_width = w * new_height / h;
}
w = new_width;
h = new_height;
if (!w || !h) {
WARN_PRINT("Unable to set icon.");
break;
}
img->resize(w, h, Image::INTERPOLATE_CUBIC);
}
// We're using long to have wordsize (32Bit build -> 32 Bits, 64 Bit build -> 64 Bits
Vector<long> pd;
pd.resize(2 + w * h);
pd.write[0] = w;
pd.write[1] = h;
const uint8_t *r = img->get_data().ptr();
long *wr = &pd.write[2];
uint8_t const *pr = r;
for (int i = 0; i < w * h; i++) {
long v = 0;
// A R G B
v |= pr[3] << 24 | pr[0] << 16 | pr[1] << 8 | pr[2];
*wr++ = v;
pr += 4;
}
if (net_wm_icon != None) {
XChangeProperty(x11_display, wd.x11_window, net_wm_icon, XA_CARDINAL, 32, PropModeReplace, (unsigned char *)pd.ptr(), pd.size());
}
if (!g_set_icon_error) {
break;
}
}
} else {
XDeleteProperty(x11_display, wd.x11_window, net_wm_icon);
}
XFlush(x11_display);
XSetErrorHandler(oldHandler);
}
void DisplayServerX11::window_set_vsync_mode(DisplayServer::VSyncMode p_vsync_mode, WindowID p_window) {
_THREAD_SAFE_METHOD_
#if defined(VULKAN_ENABLED)
if (context_vulkan) {
context_vulkan->set_vsync_mode(p_window, p_vsync_mode);
}
#endif
#if defined(GLES3_ENABLED)
if (gl_manager) {
gl_manager->set_use_vsync(p_vsync_mode == DisplayServer::VSYNC_ENABLED);
}
#endif
}
DisplayServer::VSyncMode DisplayServerX11::window_get_vsync_mode(WindowID p_window) const {
_THREAD_SAFE_METHOD_
#if defined(VULKAN_ENABLED)
if (context_vulkan) {
return context_vulkan->get_vsync_mode(p_window);
}
#endif
#if defined(GLES3_ENABLED)
if (gl_manager) {
return gl_manager->is_using_vsync() ? DisplayServer::VSYNC_ENABLED : DisplayServer::VSYNC_DISABLED;
}
#endif
return DisplayServer::VSYNC_ENABLED;
}
Vector<String> DisplayServerX11::get_rendering_drivers_func() {
Vector<String> drivers;
#ifdef VULKAN_ENABLED
drivers.push_back("vulkan");
#endif
#ifdef GLES3_ENABLED
drivers.push_back("opengl3");
#endif
return drivers;
}
DisplayServer *DisplayServerX11::create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
DisplayServer *ds = memnew(DisplayServerX11(p_rendering_driver, p_mode, p_vsync_mode, p_flags, p_resolution, r_error));
if (r_error != OK) {
OS::get_singleton()->alert("Your video card driver does not support any of the supported Vulkan or OpenGL versions.\n"
"Please update your drivers or if you have a very old or integrated GPU, upgrade it.\n"
"If you have updated your graphics drivers recently, try rebooting.",
"Unable to initialize Video driver");
}
return ds;
}
DisplayServerX11::WindowID DisplayServerX11::_create_window(WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Rect2i &p_rect) {
//Create window
long visualMask = VisualScreenMask;
int numberOfVisuals;
XVisualInfo vInfoTemplate = {};
vInfoTemplate.screen = DefaultScreen(x11_display);
XVisualInfo *visualInfo = XGetVisualInfo(x11_display, visualMask, &vInfoTemplate, &numberOfVisuals);
Colormap colormap = XCreateColormap(x11_display, RootWindow(x11_display, vInfoTemplate.screen), visualInfo->visual, AllocNone);
XSetWindowAttributes windowAttributes = {};
windowAttributes.colormap = colormap;
windowAttributes.background_pixel = 0xFFFFFFFF;
windowAttributes.border_pixel = 0;
windowAttributes.event_mask = KeyPressMask | KeyReleaseMask | StructureNotifyMask | ExposureMask;
unsigned long valuemask = CWBorderPixel | CWColormap | CWEventMask;
WindowID id = window_id_counter++;
WindowData &wd = windows[id];
if (p_flags & WINDOW_FLAG_NO_FOCUS_BIT) {
wd.no_focus = true;
}
if (p_flags & WINDOW_FLAG_POPUP_BIT) {
wd.is_popup = true;
}
// Setup for menu subwindows:
// - override_redirect forces the WM not to interfere with the window, to avoid delays due to
// handling decorations and placement.
// On the other hand, focus changes need to be handled manually when this is set.
// - save_under is a hint for the WM to keep the content of windows behind to avoid repaint.
if (wd.is_popup || wd.no_focus) {
windowAttributes.override_redirect = True;
windowAttributes.save_under = True;
valuemask |= CWOverrideRedirect | CWSaveUnder;
}
{
wd.x11_window = XCreateWindow(x11_display, RootWindow(x11_display, visualInfo->screen), p_rect.position.x, p_rect.position.y, p_rect.size.width > 0 ? p_rect.size.width : 1, p_rect.size.height > 0 ? p_rect.size.height : 1, 0, visualInfo->depth, InputOutput, visualInfo->visual, valuemask, &windowAttributes);
// Enable receiving notification when the window is initialized (MapNotify)
// so the focus can be set at the right time.
if (!wd.no_focus && !wd.is_popup) {
XSelectInput(x11_display, wd.x11_window, StructureNotifyMask);
}
//associate PID
// make PID known to X11
{
const long pid = OS::get_singleton()->get_process_id();
Atom net_wm_pid = XInternAtom(x11_display, "_NET_WM_PID", False);
if (net_wm_pid != None) {
XChangeProperty(x11_display, wd.x11_window, net_wm_pid, XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&pid, 1);
}
}
long im_event_mask = 0;
{
XIEventMask all_event_mask;
XSetWindowAttributes new_attr;
new_attr.event_mask = KeyPressMask | KeyReleaseMask | ButtonPressMask |
ButtonReleaseMask | EnterWindowMask |
LeaveWindowMask | PointerMotionMask |
Button1MotionMask |
Button2MotionMask | Button3MotionMask |
Button4MotionMask | Button5MotionMask |
ButtonMotionMask | KeymapStateMask |
ExposureMask | VisibilityChangeMask |
StructureNotifyMask |
SubstructureNotifyMask | SubstructureRedirectMask |
FocusChangeMask | PropertyChangeMask |
ColormapChangeMask | OwnerGrabButtonMask |
im_event_mask;
XChangeWindowAttributes(x11_display, wd.x11_window, CWEventMask, &new_attr);
static unsigned char all_mask_data[XIMaskLen(XI_LASTEVENT)] = {};
all_event_mask.deviceid = XIAllDevices;
all_event_mask.mask_len = sizeof(all_mask_data);
all_event_mask.mask = all_mask_data;
XISetMask(all_event_mask.mask, XI_HierarchyChanged);
#ifdef TOUCH_ENABLED
if (xi.touch_devices.size()) {
XISetMask(all_event_mask.mask, XI_TouchBegin);
XISetMask(all_event_mask.mask, XI_TouchUpdate);
XISetMask(all_event_mask.mask, XI_TouchEnd);
XISetMask(all_event_mask.mask, XI_TouchOwnership);
}
#endif
XISelectEvents(x11_display, wd.x11_window, &all_event_mask, 1);
}
/* set the titlebar name */
XStoreName(x11_display, wd.x11_window, "Godot");
XSetWMProtocols(x11_display, wd.x11_window, &wm_delete, 1);
if (xdnd_aware != None) {
XChangeProperty(x11_display, wd.x11_window, xdnd_aware, XA_ATOM, 32, PropModeReplace, (unsigned char *)&xdnd_version, 1);
}
if (xim && xim_style) {
// Block events polling while changing input focus
// because it triggers some event polling internally.
MutexLock mutex_lock(events_mutex);
wd.xic = XCreateIC(xim, XNInputStyle, xim_style, XNClientWindow, wd.x11_window, XNFocusWindow, wd.x11_window, (char *)nullptr);
if (XGetICValues(wd.xic, XNFilterEvents, &im_event_mask, nullptr) != nullptr) {
WARN_PRINT("XGetICValues couldn't obtain XNFilterEvents value");
XDestroyIC(wd.xic);
wd.xic = nullptr;
}
if (wd.xic) {
XUnsetICFocus(wd.xic);
} else {
WARN_PRINT("XCreateIC couldn't create wd.xic");
}
} else {
wd.xic = nullptr;
WARN_PRINT("XCreateIC couldn't create wd.xic");
}
_update_context(wd);
if (p_flags & WINDOW_FLAG_BORDERLESS_BIT) {
Hints hints;
Atom property;
hints.flags = 2;
hints.decorations = 0;
property = XInternAtom(x11_display, "_MOTIF_WM_HINTS", True);
if (property != None) {
XChangeProperty(x11_display, wd.x11_window, property, property, 32, PropModeReplace, (unsigned char *)&hints, 5);
}
}
if (wd.is_popup || wd.no_focus) {
// Set Utility type to disable fade animations.
Atom type_atom = XInternAtom(x11_display, "_NET_WM_WINDOW_TYPE_UTILITY", False);
Atom wt_atom = XInternAtom(x11_display, "_NET_WM_WINDOW_TYPE", False);
if (wt_atom != None && type_atom != None) {
XChangeProperty(x11_display, wd.x11_window, wt_atom, XA_ATOM, 32, PropModeReplace, (unsigned char *)&type_atom, 1);
}
} else {
Atom type_atom = XInternAtom(x11_display, "_NET_WM_WINDOW_TYPE_NORMAL", False);
Atom wt_atom = XInternAtom(x11_display, "_NET_WM_WINDOW_TYPE", False);
if (wt_atom != None && type_atom != None) {
XChangeProperty(x11_display, wd.x11_window, wt_atom, XA_ATOM, 32, PropModeReplace, (unsigned char *)&type_atom, 1);
}
}
_update_size_hints(id);
#if defined(VULKAN_ENABLED)
if (context_vulkan) {
Error err = context_vulkan->window_create(id, p_vsync_mode, wd.x11_window, x11_display, p_rect.size.width, p_rect.size.height);
ERR_FAIL_COND_V_MSG(err != OK, INVALID_WINDOW_ID, "Can't create a Vulkan window");
}
#endif
#ifdef GLES3_ENABLED
if (gl_manager) {
Error err = gl_manager->window_create(id, wd.x11_window, x11_display, p_rect.size.width, p_rect.size.height);
ERR_FAIL_COND_V_MSG(err != OK, INVALID_WINDOW_ID, "Can't create an OpenGL window");
}
#endif
//set_class_hint(x11_display, wd.x11_window);
XFlush(x11_display);
XSync(x11_display, False);
//XSetErrorHandler(oldHandler);
XFree(visualInfo);
}
window_set_mode(p_mode, id);
//sync size
{
XWindowAttributes xwa;
XSync(x11_display, False);
XGetWindowAttributes(x11_display, wd.x11_window, &xwa);
wd.position.x = xwa.x;
wd.position.y = xwa.y;
wd.size.width = xwa.width;
wd.size.height = xwa.height;
}
//set cursor
if (cursors[current_cursor] != None) {
XDefineCursor(x11_display, wd.x11_window, cursors[current_cursor]);
}
return id;
}
DisplayServerX11::DisplayServerX11(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i &p_resolution, Error &r_error) {
Input::get_singleton()->set_event_dispatch_function(_dispatch_input_events);
r_error = OK;
for (int i = 0; i < CURSOR_MAX; i++) {
cursors[i] = None;
img[i] = nullptr;
}
XInitThreads(); //always use threads
/** XLIB INITIALIZATION **/
x11_display = XOpenDisplay(nullptr);
if (!x11_display) {
ERR_PRINT("X11 Display is not available");
r_error = ERR_UNAVAILABLE;
return;
}
char *modifiers = nullptr;
Bool xkb_dar = False;
XAutoRepeatOn(x11_display);
xkb_dar = XkbSetDetectableAutoRepeat(x11_display, True, nullptr);
// Try to support IME if detectable auto-repeat is supported
if (xkb_dar == True) {
#ifdef X_HAVE_UTF8_STRING
// Xutf8LookupString will be used later instead of XmbLookupString before
// the multibyte sequences can be converted to unicode string.
modifiers = XSetLocaleModifiers("");
#endif
}
if (modifiers == nullptr) {
if (OS::get_singleton()->is_stdout_verbose()) {
WARN_PRINT("IME is disabled");
}
XSetLocaleModifiers("@im=none");
WARN_PRINT("Error setting locale modifiers");
}
const char *err;
int xrandr_major = 0;
int xrandr_minor = 0;
int event_base, error_base;
xrandr_ext_ok = XRRQueryExtension(x11_display, &event_base, &error_base);
xrandr_handle = dlopen("libXrandr.so.2", RTLD_LAZY);
if (!xrandr_handle) {
err = dlerror();
// For some arcane reason, NetBSD now ships libXrandr.so.3 while the rest of the world has libXrandr.so.2...
// In case this happens for other X11 platforms in the future, let's give it a try too before failing.
xrandr_handle = dlopen("libXrandr.so.3", RTLD_LAZY);
if (!xrandr_handle) {
fprintf(stderr, "could not load libXrandr.so.2, Error: %s\n", err);
}
} else {
XRRQueryVersion(x11_display, &xrandr_major, &xrandr_minor);
if (((xrandr_major << 8) | xrandr_minor) >= 0x0105) {
xrr_get_monitors = (xrr_get_monitors_t)dlsym(xrandr_handle, "XRRGetMonitors");
if (!xrr_get_monitors) {
err = dlerror();
fprintf(stderr, "could not find symbol XRRGetMonitors\nError: %s\n", err);
} else {
xrr_free_monitors = (xrr_free_monitors_t)dlsym(xrandr_handle, "XRRFreeMonitors");
if (!xrr_free_monitors) {
err = dlerror();
fprintf(stderr, "could not find XRRFreeMonitors\nError: %s\n", err);
xrr_get_monitors = nullptr;
}
}
}
}
if (!_refresh_device_info()) {
OS::get_singleton()->alert("Your system does not support XInput 2.\n"
"Please upgrade your distribution.",
"Unable to initialize XInput");
r_error = ERR_UNAVAILABLE;
return;
}
xim = XOpenIM(x11_display, nullptr, nullptr, nullptr);
if (xim == nullptr) {
WARN_PRINT("XOpenIM failed");
xim_style = 0L;
} else {
::XIMCallback im_destroy_callback;
im_destroy_callback.client_data = (::XPointer)(this);
im_destroy_callback.callback = (::XIMProc)(_xim_destroy_callback);
if (XSetIMValues(xim, XNDestroyCallback, &im_destroy_callback,
nullptr) != nullptr) {
WARN_PRINT("Error setting XIM destroy callback");
}
::XIMStyles *xim_styles = nullptr;
xim_style = 0L;
char *imvalret = XGetIMValues(xim, XNQueryInputStyle, &xim_styles, nullptr);
if (imvalret != nullptr || xim_styles == nullptr) {
fprintf(stderr, "Input method doesn't support any styles\n");
}
if (xim_styles) {
xim_style = 0L;
for (int i = 0; i < xim_styles->count_styles; i++) {
if (xim_styles->supported_styles[i] ==
(XIMPreeditNothing | XIMStatusNothing)) {
xim_style = xim_styles->supported_styles[i];
break;
}
}
XFree(xim_styles);
}
XFree(imvalret);
}
/* Atom internment */
wm_delete = XInternAtom(x11_display, "WM_DELETE_WINDOW", true);
// Set Xdnd (drag & drop) support.
xdnd_aware = XInternAtom(x11_display, "XdndAware", False);
xdnd_enter = XInternAtom(x11_display, "XdndEnter", False);
xdnd_position = XInternAtom(x11_display, "XdndPosition", False);
xdnd_status = XInternAtom(x11_display, "XdndStatus", False);
xdnd_action_copy = XInternAtom(x11_display, "XdndActionCopy", False);
xdnd_drop = XInternAtom(x11_display, "XdndDrop", False);
xdnd_finished = XInternAtom(x11_display, "XdndFinished", False);
xdnd_selection = XInternAtom(x11_display, "XdndSelection", False);
#ifdef SPEECHD_ENABLED
// Init TTS
tts = memnew(TTS_Linux);
#endif
//!!!!!!!!!!!!!!!!!!!!!!!!!!
//TODO - do Vulkan and OpenGL support checks, driver selection and fallback
rendering_driver = p_rendering_driver;
bool driver_found = false;
#if defined(VULKAN_ENABLED)
if (rendering_driver == "vulkan") {
context_vulkan = memnew(VulkanContextX11);
if (context_vulkan->initialize() != OK) {
memdelete(context_vulkan);
context_vulkan = nullptr;
r_error = ERR_CANT_CREATE;
ERR_FAIL_MSG("Could not initialize Vulkan");
}
driver_found = true;
}
#endif
// Initialize context and rendering device.
#if defined(GLES3_ENABLED)
if (rendering_driver == "opengl3") {
if (getenv("DRI_PRIME") == nullptr) {
int use_prime = -1;
if (getenv("PRIMUS_DISPLAY") ||
getenv("PRIMUS_libGLd") ||
getenv("PRIMUS_libGLa") ||
getenv("PRIMUS_libGL") ||
getenv("PRIMUS_LOAD_GLOBAL") ||
getenv("BUMBLEBEE_SOCKET")) {
print_verbose("Optirun/primusrun detected. Skipping GPU detection");
use_prime = 0;
}
// Some tools use fake libGL libraries and have them override the real one using
// LD_LIBRARY_PATH, so we skip them. *But* Steam also sets LD_LIBRARY_PATH for its
// runtime and includes system `/lib` and `/lib64`... so ignore Steam.
if (use_prime == -1 && getenv("LD_LIBRARY_PATH") && !getenv("STEAM_RUNTIME_LIBRARY_PATH")) {
String ld_library_path(getenv("LD_LIBRARY_PATH"));
Vector<String> libraries = ld_library_path.split(":");
for (int i = 0; i < libraries.size(); ++i) {
if (FileAccess::exists(libraries[i] + "/libGL.so.1") ||
FileAccess::exists(libraries[i] + "/libGL.so")) {
print_verbose("Custom libGL override detected. Skipping GPU detection");
use_prime = 0;
}
}
}
if (use_prime == -1) {
print_verbose("Detecting GPUs, set DRI_PRIME in the environment to override GPU detection logic.");
use_prime = detect_prime();
}
if (use_prime) {
print_line("Found discrete GPU, setting DRI_PRIME=1 to use it.");
print_line("Note: Set DRI_PRIME=0 in the environment to disable Godot from using the discrete GPU.");
setenv("DRI_PRIME", "1", 1);
}
}
GLManager_X11::ContextType opengl_api_type = GLManager_X11::GLES_3_0_COMPATIBLE;
gl_manager = memnew(GLManager_X11(p_resolution, opengl_api_type));
if (gl_manager->initialize() != OK) {
memdelete(gl_manager);
gl_manager = nullptr;
r_error = ERR_UNAVAILABLE;
return;
}
driver_found = true;
if (true) {
RasterizerGLES3::make_current();
} else {
memdelete(gl_manager);
gl_manager = nullptr;
r_error = ERR_UNAVAILABLE;
return;
}
}
#endif
if (!driver_found) {
r_error = ERR_UNAVAILABLE;
ERR_FAIL_MSG("Video driver not found");
}
Point2i window_position(
(screen_get_size(0).width - p_resolution.width) / 2,
(screen_get_size(0).height - p_resolution.height) / 2);
WindowID main_window = _create_window(p_mode, p_vsync_mode, p_flags, Rect2i(window_position, p_resolution));
if (main_window == INVALID_WINDOW_ID) {
r_error = ERR_CANT_CREATE;
return;
}
for (int i = 0; i < WINDOW_FLAG_MAX; i++) {
if (p_flags & (1 << i)) {
window_set_flag(WindowFlags(i), true, main_window);
}
}
show_window(main_window);
#if defined(VULKAN_ENABLED)
if (rendering_driver == "vulkan") {
//temporary
rendering_device_vulkan = memnew(RenderingDeviceVulkan);
rendering_device_vulkan->initialize(context_vulkan);
RendererCompositorRD::make_current();
}
#endif
{
//set all event master mask
XIEventMask all_master_event_mask;
static unsigned char all_master_mask_data[XIMaskLen(XI_LASTEVENT)] = {};
all_master_event_mask.deviceid = XIAllMasterDevices;
all_master_event_mask.mask_len = sizeof(all_master_mask_data);
all_master_event_mask.mask = all_master_mask_data;
XISetMask(all_master_event_mask.mask, XI_DeviceChanged);
XISetMask(all_master_event_mask.mask, XI_RawMotion);
XISelectEvents(x11_display, DefaultRootWindow(x11_display), &all_master_event_mask, 1);
}
cursor_size = XcursorGetDefaultSize(x11_display);
cursor_theme = XcursorGetTheme(x11_display);
if (!cursor_theme) {
print_verbose("XcursorGetTheme could not get cursor theme");
cursor_theme = "default";
}
for (int i = 0; i < CURSOR_MAX; i++) {
static const char *cursor_file[] = {
"left_ptr",
"xterm",
"hand2",
"cross",
"watch",
"left_ptr_watch",
"fleur",
"dnd-move",
"crossed_circle",
"v_double_arrow",
"h_double_arrow",
"size_bdiag",
"size_fdiag",
"move",
"row_resize",
"col_resize",
"question_arrow"
};
img[i] = XcursorLibraryLoadImage(cursor_file[i], cursor_theme, cursor_size);
if (!img[i]) {
const char *fallback = nullptr;
switch (i) {
case CURSOR_POINTING_HAND:
fallback = "pointer";
break;
case CURSOR_CROSS:
fallback = "crosshair";
break;
case CURSOR_WAIT:
fallback = "wait";
break;
case CURSOR_BUSY:
fallback = "progress";
break;
case CURSOR_DRAG:
fallback = "grabbing";
break;
case CURSOR_CAN_DROP:
fallback = "hand1";
break;
case CURSOR_FORBIDDEN:
fallback = "forbidden";
break;
case CURSOR_VSIZE:
fallback = "ns-resize";
break;
case CURSOR_HSIZE:
fallback = "ew-resize";
break;
case CURSOR_BDIAGSIZE:
fallback = "fd_double_arrow";
break;
case CURSOR_FDIAGSIZE:
fallback = "bd_double_arrow";
break;
case CURSOR_MOVE:
img[i] = img[CURSOR_DRAG];
break;
case CURSOR_VSPLIT:
fallback = "sb_v_double_arrow";
break;
case CURSOR_HSPLIT:
fallback = "sb_h_double_arrow";
break;
case CURSOR_HELP:
fallback = "help";
break;
}
if (fallback != nullptr) {
img[i] = XcursorLibraryLoadImage(fallback, cursor_theme, cursor_size);
}
}
if (img[i]) {
cursors[i] = XcursorImageLoadCursor(x11_display, img[i]);
} else {
print_verbose("Failed loading custom cursor: " + String(cursor_file[i]));
}
}
{
// Creating an empty/transparent cursor
// Create 1x1 bitmap
Pixmap cursormask = XCreatePixmap(x11_display,
RootWindow(x11_display, DefaultScreen(x11_display)), 1, 1, 1);
// Fill with zero
XGCValues xgc;
xgc.function = GXclear;
GC gc = XCreateGC(x11_display, cursormask, GCFunction, &xgc);
XFillRectangle(x11_display, cursormask, gc, 0, 0, 1, 1);
// Color value doesn't matter. Mask zero means no foreground or background will be drawn
XColor col = {};
Cursor cursor = XCreatePixmapCursor(x11_display,
cursormask, // source (using cursor mask as placeholder, since it'll all be ignored)
cursormask, // mask
&col, &col, 0, 0);
XFreePixmap(x11_display, cursormask);
XFreeGC(x11_display, gc);
if (cursor == None) {
ERR_PRINT("FAILED CREATING CURSOR");
}
null_cursor = cursor;
}
cursor_set_shape(CURSOR_BUSY);
XEvent xevent;
while (XPending(x11_display) > 0) {
XNextEvent(x11_display, &xevent);
if (xevent.type == ConfigureNotify) {
_window_changed(&xevent);
}
}
events_thread.start(_poll_events_thread, this);
_update_real_mouse_position(windows[MAIN_WINDOW_ID]);
#ifdef DBUS_ENABLED
screensaver = memnew(FreeDesktopScreenSaver);
screen_set_keep_on(GLOBAL_DEF("display/window/energy_saving/keep_screen_on", true));
#endif
r_error = OK;
}
DisplayServerX11::~DisplayServerX11() {
// Send owned clipboard data to clipboard manager before exit.
Window x11_main_window = windows[MAIN_WINDOW_ID].x11_window;
_clipboard_transfer_ownership(XA_PRIMARY, x11_main_window);
_clipboard_transfer_ownership(XInternAtom(x11_display, "CLIPBOARD", 0), x11_main_window);
events_thread_done.set();
events_thread.wait_to_finish();
//destroy all windows
for (KeyValue<WindowID, WindowData> &E : windows) {
#ifdef VULKAN_ENABLED
if (context_vulkan) {
context_vulkan->window_destroy(E.key);
}
#endif
#ifdef GLES3_ENABLED
if (gl_manager) {
gl_manager->window_destroy(E.key);
}
#endif
WindowData &wd = E.value;
if (wd.xic) {
XDestroyIC(wd.xic);
wd.xic = nullptr;
}
XUnmapWindow(x11_display, wd.x11_window);
XDestroyWindow(x11_display, wd.x11_window);
}
//destroy drivers
#if defined(VULKAN_ENABLED)
if (rendering_device_vulkan) {
rendering_device_vulkan->finalize();
memdelete(rendering_device_vulkan);
rendering_device_vulkan = nullptr;
}
if (context_vulkan) {
memdelete(context_vulkan);
context_vulkan = nullptr;
}
#endif
#ifdef GLES3_ENABLED
if (gl_manager) {
memdelete(gl_manager);
gl_manager = nullptr;
}
#endif
if (xrandr_handle) {
dlclose(xrandr_handle);
}
for (int i = 0; i < CURSOR_MAX; i++) {
if (cursors[i] != None) {
XFreeCursor(x11_display, cursors[i]);
}
if (img[i] != nullptr) {
XcursorImageDestroy(img[i]);
}
}
if (xim) {
XCloseIM(xim);
}
XCloseDisplay(x11_display);
if (xmbstring) {
memfree(xmbstring);
}
#ifdef SPEECHD_ENABLED
memdelete(tts);
#endif
#ifdef DBUS_ENABLED
memdelete(screensaver);
#endif
}
void DisplayServerX11::register_x11_driver() {
register_create_function("x11", create_func, get_rendering_drivers_func);
}
#endif // X11 enabled
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