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virtualx-engine/platform/x11/os_x11.cpp
Pedro J. Estébanez 6d89f675b1 Modernize Thread 
- Based on C++11's `thread` and `thread_local`
- No more need to allocate-deallocate or check for null
- No pointer anymore, just a member variable
- Platform-specific implementations no longer needed (except for the few cases of non-portable functions)
- Simpler for `NO_THREADS`
- Thread ids are now the same across platforms (main is 1; others follow)
2021-02-18 11:58:08 +01:00

3979 lines
110 KiB
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/*************************************************************************/
/* os_x11.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 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 "os_x11.h"
#include "core/os/dir_access.h"
#include "core/print_string.h"
#include "detect_prime.h"
#include "drivers/gles2/rasterizer_gles2.h"
#include "drivers/gles3/rasterizer_gles3.h"
#include "key_mapping_x11.h"
#include "main/main.h"
#include "servers/visual/visual_server_raster.h"
#include "servers/visual/visual_server_wrap_mt.h"
#ifdef HAVE_MNTENT
#include <mntent.h>
#endif
#include <errno.h>
#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
#define _NET_WM_STATE_TOGGLE 2L // toggle 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
static const double abs_resolution_mult = 10000.0;
static const double abs_resolution_range_mult = 10.0;
void OS_X11::initialize_core() {
crash_handler.initialize();
OS_Unix::initialize_core();
}
int OS_X11::get_current_video_driver() const {
return video_driver_index;
}
Error OS_X11::initialize(const VideoMode &p_desired, int p_video_driver, int p_audio_driver) {
long im_event_mask = 0;
last_button_state = 0;
xmbstring = NULL;
x11_window = 0;
last_click_ms = 0;
last_click_button_index = -1;
last_click_pos = Point2(-100, -100);
args = OS::get_singleton()->get_cmdline_args();
current_videomode = p_desired;
main_loop = NULL;
last_timestamp = 0;
last_mouse_pos_valid = false;
last_keyrelease_time = 0;
xdnd_version = 0;
XInitThreads();
/** XLIB INITIALIZATION **/
x11_display = XOpenDisplay(NULL);
if (!x11_display) {
ERR_PRINT("X11 Display is not available");
return ERR_UNAVAILABLE;
}
char *modifiers = NULL;
Bool xkb_dar = False;
XAutoRepeatOn(x11_display);
xkb_dar = XkbSetDetectableAutoRepeat(x11_display, True, NULL);
// 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 == NULL) {
if (is_stdout_verbose()) {
WARN_PRINT("IME is disabled");
}
XSetLocaleModifiers("@im=none");
WARN_PRINT("Error setting locale modifiers");
}
const char *err;
xrr_get_monitors = NULL;
xrr_free_monitors = NULL;
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 = NULL;
}
}
}
}
if (!refresh_device_info()) {
OS::get_singleton()->alert("Your system does not support XInput 2.\n"
"Please upgrade your distribution.",
"Unable to initialize XInput");
return ERR_UNAVAILABLE;
}
xim = XOpenIM(x11_display, NULL, NULL, NULL);
if (xim == NULL) {
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,
NULL) != NULL) {
WARN_PRINT("Error setting XIM destroy callback");
}
::XIMStyles *xim_styles = NULL;
xim_style = 0L;
char *imvalret = XGetIMValues(xim, XNQueryInputStyle, &xim_styles, NULL);
if (imvalret != NULL || xim_styles == NULL) {
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);
}
/*
char* windowid = getenv("GODOT_WINDOWID");
if (windowid) {
//freopen("/home/punto/stdout", "w", stdout);
//reopen("/home/punto/stderr", "w", stderr);
x11_window = atol(windowid);
XWindowAttributes xwa;
XGetWindowAttributes(x11_display,x11_window,&xwa);
current_videomode.width = xwa.width;
current_videomode.height = xwa.height;
};
*/
// maybe contextgl wants to be in charge of creating the window
#if defined(OPENGL_ENABLED)
if (getenv("DRI_PRIME") == NULL) {
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;
}
if (getenv("LD_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);
}
}
ContextGL_X11::ContextType opengl_api_type = ContextGL_X11::GLES_3_0_COMPATIBLE;
if (p_video_driver == VIDEO_DRIVER_GLES2) {
opengl_api_type = ContextGL_X11::GLES_2_0_COMPATIBLE;
}
bool editor = Engine::get_singleton()->is_editor_hint();
bool gl_initialization_error = false;
context_gl = NULL;
while (!context_gl) {
context_gl = memnew(ContextGL_X11(x11_display, x11_window, current_videomode, opengl_api_type));
if (context_gl->initialize() != OK) {
memdelete(context_gl);
context_gl = NULL;
if (GLOBAL_GET("rendering/quality/driver/fallback_to_gles2") || editor) {
if (p_video_driver == VIDEO_DRIVER_GLES2) {
gl_initialization_error = true;
break;
}
p_video_driver = VIDEO_DRIVER_GLES2;
opengl_api_type = ContextGL_X11::GLES_2_0_COMPATIBLE;
} else {
gl_initialization_error = true;
break;
}
}
}
while (true) {
if (opengl_api_type == ContextGL_X11::GLES_3_0_COMPATIBLE) {
if (RasterizerGLES3::is_viable() == OK) {
RasterizerGLES3::register_config();
RasterizerGLES3::make_current();
break;
} else {
if (GLOBAL_GET("rendering/quality/driver/fallback_to_gles2") || editor) {
p_video_driver = VIDEO_DRIVER_GLES2;
opengl_api_type = ContextGL_X11::GLES_2_0_COMPATIBLE;
continue;
} else {
gl_initialization_error = true;
break;
}
}
}
if (opengl_api_type == ContextGL_X11::GLES_2_0_COMPATIBLE) {
if (RasterizerGLES2::is_viable() == OK) {
RasterizerGLES2::register_config();
RasterizerGLES2::make_current();
break;
} else {
gl_initialization_error = true;
break;
}
}
}
if (gl_initialization_error) {
OS::get_singleton()->alert("Your video card driver does not support any of the supported OpenGL versions.\n"
"Please update your drivers or if you have a very old or integrated GPU upgrade it.",
"Unable to initialize Video driver");
return ERR_UNAVAILABLE;
}
video_driver_index = p_video_driver;
context_gl->set_use_vsync(current_videomode.use_vsync);
#endif
visual_server = memnew(VisualServerRaster);
if (get_render_thread_mode() != RENDER_THREAD_UNSAFE) {
visual_server = memnew(VisualServerWrapMT(visual_server, get_render_thread_mode() == RENDER_SEPARATE_THREAD));
}
if (current_videomode.maximized) {
current_videomode.maximized = false;
set_window_maximized(true);
// borderless fullscreen window mode
} else if (current_videomode.fullscreen) {
current_videomode.fullscreen = false;
set_window_fullscreen(true);
} else if (current_videomode.borderless_window) {
Hints hints;
Atom property;
hints.flags = 2;
hints.decorations = 0;
property = XInternAtom(x11_display, "_MOTIF_WM_HINTS", True);
if (property != None) {
XChangeProperty(x11_display, x11_window, property, property, 32, PropModeReplace, (unsigned char *)&hints, 5);
}
}
// make PID known to X11
{
const long pid = this->get_process_id();
Atom net_wm_pid = XInternAtom(x11_display, "_NET_WM_PID", False);
if (net_wm_pid != None) {
XChangeProperty(x11_display, x11_window, net_wm_pid, XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&pid, 1);
}
}
// disable resizable window
if (!current_videomode.resizable && !current_videomode.fullscreen) {
XSizeHints *xsh;
xsh = XAllocSizeHints();
xsh->flags = PMinSize | PMaxSize;
XWindowAttributes xwa;
if (current_videomode.fullscreen) {
XGetWindowAttributes(x11_display, DefaultRootWindow(x11_display), &xwa);
} else {
XGetWindowAttributes(x11_display, x11_window, &xwa);
}
xsh->min_width = xwa.width;
xsh->max_width = xwa.width;
xsh->min_height = xwa.height;
xsh->max_height = xwa.height;
XSetWMNormalHints(x11_display, x11_window, xsh);
XFree(xsh);
}
if (current_videomode.always_on_top) {
current_videomode.always_on_top = false;
set_window_always_on_top(true);
}
ERR_FAIL_COND_V(!visual_server, ERR_UNAVAILABLE);
ERR_FAIL_COND_V(x11_window == 0, ERR_UNAVAILABLE);
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, x11_window, CWEventMask, &new_attr);
static unsigned char all_mask_data[XIMaskLen(XI_LASTEVENT)] = {};
static unsigned char all_master_mask_data[XIMaskLen(XI_LASTEVENT)] = {};
xi.all_event_mask.deviceid = XIAllDevices;
xi.all_event_mask.mask_len = sizeof(all_mask_data);
xi.all_event_mask.mask = all_mask_data;
xi.all_master_event_mask.deviceid = XIAllMasterDevices;
xi.all_master_event_mask.mask_len = sizeof(all_master_mask_data);
xi.all_master_event_mask.mask = all_master_mask_data;
XISetMask(xi.all_event_mask.mask, XI_HierarchyChanged);
XISetMask(xi.all_master_event_mask.mask, XI_DeviceChanged);
XISetMask(xi.all_master_event_mask.mask, XI_RawMotion);
#ifdef TOUCH_ENABLED
if (xi.touch_devices.size()) {
XISetMask(xi.all_event_mask.mask, XI_TouchBegin);
XISetMask(xi.all_event_mask.mask, XI_TouchUpdate);
XISetMask(xi.all_event_mask.mask, XI_TouchEnd);
XISetMask(xi.all_event_mask.mask, XI_TouchOwnership);
}
#endif
XISelectEvents(x11_display, x11_window, &xi.all_event_mask, 1);
XISelectEvents(x11_display, DefaultRootWindow(x11_display), &xi.all_master_event_mask, 1);
// Disabled by now since grabbing also blocks mouse events
// (they are received as extended events instead of standard events)
/*XIClearMask(xi.touch_event_mask.mask, XI_TouchOwnership);
// 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);
}*/
/* set the titlebar name */
XStoreName(x11_display, x11_window, "Godot");
wm_delete = XInternAtom(x11_display, "WM_DELETE_WINDOW", true);
XSetWMProtocols(x11_display, x11_window, &wm_delete, 1);
im_active = false;
im_position = Vector2();
if (xim && xim_style) {
xic = XCreateIC(xim, XNInputStyle, xim_style, XNClientWindow, x11_window, XNFocusWindow, x11_window, (char *)NULL);
if (XGetICValues(xic, XNFilterEvents, &im_event_mask, NULL) != NULL) {
WARN_PRINT("XGetICValues couldn't obtain XNFilterEvents value");
XDestroyIC(xic);
xic = NULL;
}
if (xic) {
XUnsetICFocus(xic);
} else {
WARN_PRINT("XCreateIC couldn't create xic");
}
} else {
xic = NULL;
WARN_PRINT("XCreateIC couldn't create xic");
}
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++) {
cursors[i] = None;
img[i] = NULL;
}
current_cursor = CURSOR_ARROW;
for (int i = 0; i < CURSOR_MAX; i++) {
static const char *cursor_file[] = {
"left_ptr",
"xterm",
"hand2",
"cross",
"watch",
"left_ptr_watch",
"fleur",
"hand1",
"X_cursor",
"sb_v_double_arrow",
"sb_h_double_arrow",
"size_bdiag",
"size_fdiag",
"hand1",
"sb_v_double_arrow",
"sb_h_double_arrow",
"question_arrow"
};
img[i] = XcursorLibraryLoadImage(cursor_file[i], 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;
}
set_cursor_shape(CURSOR_BUSY);
//Set Xdnd (drag & drop) support
Atom XdndAware = XInternAtom(x11_display, "XdndAware", False);
Atom version = 5;
if (XdndAware != None) {
XChangeProperty(x11_display, x11_window, XdndAware, XA_ATOM, 32, PropModeReplace, (unsigned char *)&version, 1);
}
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);
requested = None;
visual_server->init();
AudioDriverManager::initialize(p_audio_driver);
input = memnew(InputDefault);
window_has_focus = true; // Set focus to true at init
#ifdef JOYDEV_ENABLED
joypad = memnew(JoypadLinux(input));
#endif
power_manager = memnew(PowerX11);
if (p_desired.layered) {
set_window_per_pixel_transparency_enabled(true);
}
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();
return OK;
}
bool OS_X11::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_y_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_x_min = class_info->min;
tilt_x_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 OS_X11::xim_destroy_callback(::XIM im, ::XPointer client_data,
::XPointer call_data) {
WARN_PRINT("Input method stopped");
OS_X11 *os = reinterpret_cast<OS_X11 *>(client_data);
os->xim = NULL;
os->xic = NULL;
}
void OS_X11::set_ime_active(const bool p_active) {
im_active = p_active;
if (!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(xic);
}
set_ime_position(im_position);
} else {
MutexLock mutex_lock(events_mutex);
XUnsetICFocus(xic);
}
}
void OS_X11::set_ime_position(const Point2 &p_pos) {
im_position = p_pos;
if (!xic)
return;
::XPoint spot;
spot.x = short(p_pos.x);
spot.y = short(p_pos.y);
XVaNestedList preedit_attr = XVaCreateNestedList(0, XNSpotLocation, &spot, NULL);
{
// Block events polling during this call
// because it triggers some event polling internally.
MutexLock mutex_lock(events_mutex);
XSetICValues(xic, XNPreeditAttributes, preedit_attr, NULL);
}
XFree(preedit_attr);
}
String OS_X11::get_unique_id() const {
static String machine_id;
if (machine_id.empty()) {
if (FileAccess *f = FileAccess::open("/etc/machine-id", FileAccess::READ)) {
while (machine_id.empty() && !f->eof_reached()) {
machine_id = f->get_line().strip_edges();
}
f->close();
memdelete(f);
}
}
return machine_id;
}
void OS_X11::finalize() {
events_thread_done = true;
events_thread.wait_to_finish();
if (main_loop)
memdelete(main_loop);
main_loop = NULL;
/*
if (debugger_connection_console) {
memdelete(debugger_connection_console);
}
*/
#ifdef ALSAMIDI_ENABLED
driver_alsamidi.close();
#endif
#ifdef JOYDEV_ENABLED
memdelete(joypad);
#endif
xi.touch_devices.clear();
xi.state.clear();
memdelete(input);
cursors_cache.clear();
visual_server->finish();
memdelete(visual_server);
//memdelete(rasterizer);
memdelete(power_manager);
if (xrandr_handle)
dlclose(xrandr_handle);
if (!OS::get_singleton()->is_no_window_mode_enabled()) {
XUnmapWindow(x11_display, x11_window);
}
XDestroyWindow(x11_display, x11_window);
#if defined(OPENGL_ENABLED)
memdelete(context_gl);
#endif
for (int i = 0; i < CURSOR_MAX; i++) {
if (cursors[i] != None)
XFreeCursor(x11_display, cursors[i]);
if (img[i] != NULL)
XcursorImageDestroy(img[i]);
};
if (xic) {
XDestroyIC(xic);
}
if (xim) {
XCloseIM(xim);
}
XCloseDisplay(x11_display);
if (xmbstring)
memfree(xmbstring);
args.clear();
}
void OS_X11::set_mouse_mode(MouseMode p_mode) {
if (p_mode == mouse_mode)
return;
if (mouse_mode == MOUSE_MODE_CAPTURED || mouse_mode == MOUSE_MODE_CONFINED)
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);
if (showCursor) {
XDefineCursor(x11_display, x11_window, cursors[current_cursor]); // show cursor
} else {
XDefineCursor(x11_display, x11_window, null_cursor); // hide cursor
}
mouse_mode = p_mode;
if (mouse_mode == MOUSE_MODE_CAPTURED || mouse_mode == MOUSE_MODE_CONFINED) {
//flush pending motion events
flush_mouse_motion();
if (XGrabPointer(
x11_display, x11_window, True,
ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
GrabModeAsync, GrabModeAsync, x11_window, None, CurrentTime) != GrabSuccess) {
ERR_PRINT("NO GRAB");
}
if (mouse_mode == MOUSE_MODE_CAPTURED) {
center.x = current_videomode.width / 2;
center.y = current_videomode.height / 2;
XWarpPointer(x11_display, None, x11_window,
0, 0, 0, 0, (int)center.x, (int)center.y);
input->set_mouse_position(center);
}
} else {
do_mouse_warp = false;
}
XFlush(x11_display);
}
void OS_X11::warp_mouse_position(const Point2 &p_to) {
if (mouse_mode == MOUSE_MODE_CAPTURED) {
last_mouse_pos = p_to;
} else {
/*XWindowAttributes xwa;
XGetWindowAttributes(x11_display, x11_window, &xwa);
printf("%d %d\n", xwa.x, xwa.y); needed? */
XWarpPointer(x11_display, None, x11_window,
0, 0, 0, 0, (int)p_to.x, (int)p_to.y);
}
}
void OS_X11::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(event_index--);
continue;
}
XFreeEventData(x11_display, &event.xcookie);
break;
}
}
xi.relative_motion.x = 0;
xi.relative_motion.y = 0;
}
OS::MouseMode OS_X11::get_mouse_mode() const {
return mouse_mode;
}
int OS_X11::get_mouse_button_state() const {
return last_button_state;
}
Point2 OS_X11::get_mouse_position() const {
return last_mouse_pos;
}
bool OS_X11::get_window_per_pixel_transparency_enabled() const {
if (!is_layered_allowed()) return false;
return layered_window;
}
void OS_X11::set_window_per_pixel_transparency_enabled(bool p_enabled) {
if (!is_layered_allowed()) return;
if (layered_window != p_enabled) {
if (p_enabled) {
layered_window = true;
} else {
layered_window = false;
}
}
}
void OS_X11::set_window_title(const String &p_title) {
XStoreName(x11_display, 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, x11_window, _net_wm_name, utf8_string, 8, PropModeReplace, (unsigned char *)p_title.utf8().get_data(), p_title.utf8().length());
}
}
void OS_X11::set_window_mouse_passthrough(const PoolVector2Array &p_region) {
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 = get_real_window_size().x;
rect.height = get_real_window_size().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, x11_window, ShapeInput, 0, 0, region, ShapeSet);
XDestroyRegion(region);
}
}
void OS_X11::set_video_mode(const VideoMode &p_video_mode, int p_screen) {
}
OS::VideoMode OS_X11::get_video_mode(int p_screen) const {
return current_videomode;
}
void OS_X11::get_fullscreen_mode_list(List<VideoMode> *p_list, int p_screen) const {
}
void OS_X11::set_wm_fullscreen(bool p_enabled) {
if (p_enabled && !get_borderless_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, x11_window, property, property, 32, PropModeReplace, (unsigned char *)&hints, 5);
}
}
if (p_enabled && !is_window_resizable()) {
// Set the window as resizable to prevent window managers to ignore the fullscreen state flag.
XSizeHints *xsh;
xsh = XAllocSizeHints();
xsh->flags = 0L;
XSetWMNormalHints(x11_display, x11_window, xsh);
XFree(xsh);
}
// 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 = 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, 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.
Size2 size = get_window_size();
XSizeHints *xsh;
xsh = XAllocSizeHints();
if (!is_window_resizable()) {
xsh->flags = PMinSize | PMaxSize;
xsh->min_width = size.x;
xsh->max_width = size.x;
xsh->min_height = size.y;
xsh->max_height = size.y;
} else {
xsh->flags = 0L;
if (min_size != Size2()) {
xsh->flags |= PMinSize;
xsh->min_width = min_size.x;
xsh->min_height = min_size.y;
}
if (max_size != Size2()) {
xsh->flags |= PMaxSize;
xsh->max_width = max_size.x;
xsh->max_height = max_size.y;
}
}
XSetWMNormalHints(x11_display, x11_window, xsh);
XFree(xsh);
// put back or remove decorations according to the last set borderless state
Hints hints;
Atom property;
hints.flags = 2;
hints.decorations = current_videomode.borderless_window ? 0 : 1;
property = XInternAtom(x11_display, "_MOTIF_WM_HINTS", True);
if (property != None) {
XChangeProperty(x11_display, x11_window, property, property, 32, PropModeReplace, (unsigned char *)&hints, 5);
}
}
}
void OS_X11::set_wm_above(bool p_enabled) {
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 = 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);
}
int OS_X11::get_screen_count() const {
// Using Xinerama Extension
int event_base, error_base;
const Bool ext_okay = XineramaQueryExtension(x11_display, &event_base, &error_base);
if (!ext_okay) return 0;
int count;
XineramaScreenInfo *xsi = XineramaQueryScreens(x11_display, &count);
XFree(xsi);
return count;
}
int OS_X11::get_current_screen() const {
int x, y;
Window child;
XTranslateCoordinates(x11_display, x11_window, DefaultRootWindow(x11_display), 0, 0, &x, &y, &child);
int count = get_screen_count();
for (int i = 0; i < count; i++) {
Point2i pos = get_screen_position(i);
Size2i size = get_screen_size(i);
if ((x >= pos.x && x < pos.x + size.width) && (y >= pos.y && y < pos.y + size.height))
return i;
}
return 0;
}
void OS_X11::set_current_screen(int p_screen) {
int count = get_screen_count();
if (p_screen >= count) return;
if (current_videomode.fullscreen) {
Point2i position = get_screen_position(p_screen);
Size2i size = get_screen_size(p_screen);
XMoveResizeWindow(x11_display, x11_window, position.x, position.y, size.x, size.y);
} else {
if (p_screen != get_current_screen()) {
Point2i position = get_screen_position(p_screen);
XMoveWindow(x11_display, x11_window, position.x, position.y);
}
}
}
Point2 OS_X11::get_screen_position(int p_screen) const {
if (p_screen == -1) {
p_screen = get_current_screen();
}
// Using Xinerama Extension
int event_base, error_base;
const Bool ext_okay = XineramaQueryExtension(x11_display, &event_base, &error_base);
if (!ext_okay) {
return Point2i(0, 0);
}
int count;
XineramaScreenInfo *xsi = XineramaQueryScreens(x11_display, &count);
if (p_screen >= count) {
return Point2i(0, 0);
}
Point2i position = Point2i(xsi[p_screen].x_org, xsi[p_screen].y_org);
XFree(xsi);
return position;
}
Size2 OS_X11::get_screen_size(int p_screen) const {
if (p_screen == -1) {
p_screen = get_current_screen();
}
// Using Xinerama Extension
int event_base, error_base;
const Bool ext_okay = XineramaQueryExtension(x11_display, &event_base, &error_base);
if (!ext_okay) return Size2i(0, 0);
int count;
XineramaScreenInfo *xsi = XineramaQueryScreens(x11_display, &count);
if (p_screen >= count) return Size2i(0, 0);
Size2i size = Point2i(xsi[p_screen].width, xsi[p_screen].height);
XFree(xsi);
return size;
}
int OS_X11::get_screen_dpi(int p_screen) const {
if (p_screen == -1) {
p_screen = get_current_screen();
}
//invalid screen?
ERR_FAIL_INDEX_V(p_screen, get_screen_count(), 0);
//Get physical monitor Dimensions through XRandR and calculate dpi
Size2 sc = get_screen_size(p_screen);
if (xrandr_ext_ok) {
int count = 0;
if (xrr_get_monitors) {
xrr_monitor_info *monitors = xrr_get_monitors(x11_display, 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;
}
Point2 OS_X11::get_window_position() const {
int x, y;
Window child;
XTranslateCoordinates(x11_display, x11_window, DefaultRootWindow(x11_display), 0, 0, &x, &y, &child);
return Point2i(x, y);
}
void OS_X11::set_window_position(const Point2 &p_position) {
int x = 0;
int y = 0;
if (!get_borderless_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 = NULL;
if (XGetWindowProperty(x11_display, x11_window, prop, 0, 4, False, AnyPropertyType, &type, &format, &len, &remaining, &data) == Success) {
if (format == 32 && len == 4) {
long *extents = (long *)data;
x = extents[0];
y = extents[2];
}
XFree(data);
}
}
}
XMoveWindow(x11_display, x11_window, p_position.x - x, p_position.y - y);
update_real_mouse_position();
}
Size2 OS_X11::get_window_size() const {
// Use current_videomode width and height instead of XGetWindowAttributes
// since right after a XResizeWindow the attributes may not be updated yet
return Size2i(current_videomode.width, current_videomode.height);
}
Size2 OS_X11::get_real_window_size() const {
XWindowAttributes xwa;
XSync(x11_display, False);
XGetWindowAttributes(x11_display, 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 = NULL;
if (XGetWindowProperty(x11_display, x11_window, prop, 0, 4, False, AnyPropertyType, &type, &format, &len, &remaining, &data) == Success) {
if (format == 32 && len == 4) {
long *extents = (long *)data;
w += extents[0] + extents[1]; // left, right
h += extents[2] + extents[3]; // top, bottom
}
XFree(data);
}
}
return Size2(w, h);
}
Size2 OS_X11::get_max_window_size() const {
return max_size;
}
Size2 OS_X11::get_min_window_size() const {
return min_size;
}
void OS_X11::set_min_window_size(const Size2 p_size) {
if ((p_size != Size2()) && (max_size != Size2()) && ((p_size.x > max_size.x) || (p_size.y > max_size.y))) {
ERR_PRINT("Minimum window size can't be larger than maximum window size!");
return;
}
min_size = p_size;
if (is_window_resizable()) {
XSizeHints *xsh;
xsh = XAllocSizeHints();
xsh->flags = 0L;
if (min_size != Size2()) {
xsh->flags |= PMinSize;
xsh->min_width = min_size.x;
xsh->min_height = min_size.y;
}
if (max_size != Size2()) {
xsh->flags |= PMaxSize;
xsh->max_width = max_size.x;
xsh->max_height = max_size.y;
}
XSetWMNormalHints(x11_display, x11_window, xsh);
XFree(xsh);
XFlush(x11_display);
}
}
void OS_X11::set_max_window_size(const Size2 p_size) {
if ((p_size != Size2()) && ((p_size.x < min_size.x) || (p_size.y < min_size.y))) {
ERR_PRINT("Maximum window size can't be smaller than minimum window size!");
return;
}
max_size = p_size;
if (is_window_resizable()) {
XSizeHints *xsh;
xsh = XAllocSizeHints();
xsh->flags = 0L;
if (min_size != Size2()) {
xsh->flags |= PMinSize;
xsh->min_width = min_size.x;
xsh->min_height = min_size.y;
}
if (max_size != Size2()) {
xsh->flags |= PMaxSize;
xsh->max_width = max_size.x;
xsh->max_height = max_size.y;
}
XSetWMNormalHints(x11_display, x11_window, xsh);
XFree(xsh);
XFlush(x11_display);
}
}
void OS_X11::set_window_size(const Size2 p_size) {
if (current_videomode.width == p_size.width && current_videomode.height == p_size.height)
return;
XWindowAttributes xwa;
XSync(x11_display, False);
XGetWindowAttributes(x11_display, x11_window, &xwa);
int old_w = xwa.width;
int old_h = xwa.height;
// If window resizable is disabled we need to update the attributes first
XSizeHints *xsh;
xsh = XAllocSizeHints();
if (!is_window_resizable()) {
xsh->flags = PMinSize | PMaxSize;
xsh->min_width = p_size.x;
xsh->max_width = p_size.x;
xsh->min_height = p_size.y;
xsh->max_height = p_size.y;
} else {
xsh->flags = 0L;
if (min_size != Size2()) {
xsh->flags |= PMinSize;
xsh->min_width = min_size.x;
xsh->min_height = min_size.y;
}
if (max_size != Size2()) {
xsh->flags |= PMaxSize;
xsh->max_width = max_size.x;
xsh->max_height = max_size.y;
}
}
XSetWMNormalHints(x11_display, x11_window, xsh);
XFree(xsh);
// Resize the window
XResizeWindow(x11_display, x11_window, p_size.x, p_size.y);
// Update our videomode width and height
current_videomode.width = p_size.x;
current_videomode.height = p_size.y;
for (int timeout = 0; timeout < 50; ++timeout) {
XSync(x11_display, False);
XGetWindowAttributes(x11_display, x11_window, &xwa);
if (old_w != xwa.width || old_h != xwa.height)
break;
usleep(10000);
}
}
void OS_X11::set_window_fullscreen(bool p_enabled) {
if (current_videomode.fullscreen == p_enabled)
return;
if (layered_window)
set_window_per_pixel_transparency_enabled(false);
if (p_enabled && current_videomode.always_on_top) {
// Fullscreen + Always-on-top requires a maximized window on some window managers (Metacity)
set_window_maximized(true);
}
set_wm_fullscreen(p_enabled);
if (!p_enabled && current_videomode.always_on_top) {
// Restore
set_window_maximized(false);
}
if (!p_enabled) {
set_window_position(last_position_before_fs);
} else {
last_position_before_fs = get_window_position();
}
current_videomode.fullscreen = p_enabled;
}
bool OS_X11::is_window_fullscreen() const {
return current_videomode.fullscreen;
}
void OS_X11::set_window_resizable(bool p_enabled) {
XSizeHints *xsh;
xsh = XAllocSizeHints();
if (!p_enabled) {
Size2 size = get_window_size();
xsh->flags = PMinSize | PMaxSize;
xsh->min_width = size.x;
xsh->max_width = size.x;
xsh->min_height = size.y;
xsh->max_height = size.y;
} else {
xsh->flags = 0L;
if (min_size != Size2()) {
xsh->flags |= PMinSize;
xsh->min_width = min_size.x;
xsh->min_height = min_size.y;
}
if (max_size != Size2()) {
xsh->flags |= PMaxSize;
xsh->max_width = max_size.x;
xsh->max_height = max_size.y;
}
}
XSetWMNormalHints(x11_display, x11_window, xsh);
XFree(xsh);
current_videomode.resizable = p_enabled;
XFlush(x11_display);
}
bool OS_X11::is_window_resizable() const {
return current_videomode.resizable;
}
void OS_X11::set_window_minimized(bool p_enabled) {
if (is_no_window_mode_enabled()) {
return;
}
// 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 = x11_window;
xev.xclient.message_type = wm_change;
xev.xclient.format = 32;
xev.xclient.data.l[0] = p_enabled ? WM_IconicState : 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 = 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);
}
bool OS_X11::is_window_minimized() const {
// Using ICCCM -- Inter-Client Communication Conventions Manual
Atom property = XInternAtom(x11_display, "WM_STATE", True);
if (property == None) {
return false;
}
Atom type;
int format;
unsigned long len;
unsigned long remaining;
unsigned char *data = NULL;
bool retval = false;
int result = XGetWindowProperty(
x11_display,
x11_window,
property,
0,
32,
False,
AnyPropertyType,
&type,
&format,
&len,
&remaining,
&data);
if (result == Success) {
long *state = (long *)data;
if (state[0] == WM_IconicState) {
retval = true;
}
XFree(data);
}
return retval;
}
void OS_X11::set_window_maximized(bool p_enabled) {
if (is_no_window_mode_enabled()) {
return;
}
if (is_window_maximized() == p_enabled)
return;
// 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 = 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 && is_window_maximize_allowed()) {
// 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; !is_window_maximized() && attempt < 50; attempt++) {
usleep(10000);
}
}
maximized = p_enabled;
}
// Just a helper to reduce code duplication in `is_window_maximize_allowed`
// and `is_window_maximized`.
bool OS_X11::window_maximize_check(const char *p_atom_name) const {
Atom property = XInternAtom(x11_display, p_atom_name, False);
Atom type;
int format;
unsigned long len;
unsigned long remaining;
unsigned char *data = NULL;
bool retval = false;
if (property == None) {
return false;
}
int result = XGetWindowProperty(
x11_display,
x11_window,
property,
0,
1024,
False,
XA_ATOM,
&type,
&format,
&len,
&remaining,
&data);
if (result == Success) {
Atom *atoms = (Atom *)data;
Atom wm_act_max_horz = XInternAtom(x11_display, "_NET_WM_ACTION_MAXIMIZE_HORZ", False);
Atom 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 OS_X11::is_window_maximize_allowed() const {
return window_maximize_check("_NET_WM_ALLOWED_ACTIONS");
}
bool OS_X11::is_window_maximized() const {
// Using EWMH -- Extended Window Manager Hints
return window_maximize_check("_NET_WM_STATE");
}
void OS_X11::set_window_always_on_top(bool p_enabled) {
if (is_window_always_on_top() == p_enabled)
return;
if (p_enabled && current_videomode.fullscreen) {
// Fullscreen + Always-on-top requires a maximized window on some window managers (Metacity)
set_window_maximized(true);
}
set_wm_above(p_enabled);
if (!p_enabled && !current_videomode.fullscreen) {
// Restore
set_window_maximized(false);
}
current_videomode.always_on_top = p_enabled;
}
bool OS_X11::is_window_always_on_top() const {
return current_videomode.always_on_top;
}
bool OS_X11::is_window_focused() const {
return window_focused;
}
void OS_X11::set_borderless_window(bool p_borderless) {
if (get_borderless_window() == p_borderless)
return;
current_videomode.borderless_window = p_borderless;
Hints hints;
Atom property;
hints.flags = 2;
hints.decorations = current_videomode.borderless_window ? 0 : 1;
property = XInternAtom(x11_display, "_MOTIF_WM_HINTS", True);
if (property != None) {
XChangeProperty(x11_display, x11_window, property, property, 32, PropModeReplace, (unsigned char *)&hints, 5);
}
// Preserve window size
set_window_size(Size2(current_videomode.width, current_videomode.height));
}
bool OS_X11::get_borderless_window() {
bool borderless = current_videomode.borderless_window;
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 = NULL;
if (XGetWindowProperty(x11_display, x11_window, prop, 0, sizeof(Hints), False, AnyPropertyType, &type, &format, &len, &remaining, &data) == Success) {
if (data && (format == 32) && (len >= 5)) {
borderless = !((Hints *)data)->decorations;
}
XFree(data);
}
}
return borderless;
}
void OS_X11::request_attention() {
// 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 = 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 *OS_X11::get_native_handle(int p_handle_type) {
switch (p_handle_type) {
case APPLICATION_HANDLE: return NULL; // Do we have a value to return here?
case DISPLAY_HANDLE: return (void *)x11_display;
case WINDOW_HANDLE: return (void *)x11_window;
case WINDOW_VIEW: return NULL; // Do we have a value to return here?
case OPENGL_CONTEXT: return context_gl->get_glx_context();
default: return NULL;
}
}
void OS_X11::get_key_modifier_state(unsigned int p_x11_state, Ref<InputEventWithModifiers> state) {
state->set_shift((p_x11_state & ShiftMask));
state->set_control((p_x11_state & ControlMask));
state->set_alt((p_x11_state & Mod1Mask /*|| p_x11_state&Mod5Mask*/)); //altgr should not count as alt
state->set_metakey((p_x11_state & Mod4Mask));
}
unsigned int OS_X11::get_mouse_button_state(unsigned int p_x11_button, int p_x11_type) {
unsigned int mask = 1 << (p_x11_button - 1);
if (p_x11_type == ButtonPress) {
last_button_state |= mask;
} else {
last_button_state &= ~mask;
}
return last_button_state;
}
void OS_X11::_handle_key_event(XKeyEvent *p_event, LocalVector<XEvent> &p_events, uint32_t &p_event_index, bool p_echo) {
// 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 chosse 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 scancodes/
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, NULL);
XLookupString(&xkeyevent_no_mod, NULL, 0, &keysym_keycode, NULL);
// 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 && xic) {
Status status;
#ifdef X_HAVE_UTF8_STRING
int utf8len = 8;
char *utf8string = (char *)memalloc(sizeof(char) * utf8len);
int utf8bytes = Xutf8LookupString(xic, xkeyevent, utf8string,
utf8len - 1, &keysym_unicode, &status);
if (status == XBufferOverflow) {
utf8len = utf8bytes + 1;
utf8string = (char *)memrealloc(utf8string, utf8len);
utf8bytes = Xutf8LookupString(xic, xkeyevent, utf8string,
utf8len - 1, &keysym_unicode, &status);
}
utf8string[utf8bytes] = '\0';
if (status == XLookupChars) {
bool keypress = xkeyevent->type == KeyPress;
unsigned int keycode = KeyMappingX11::get_keycode(keysym_keycode);
if (keycode >= 'a' && keycode <= 'z')
keycode -= 'a' - 'A';
String tmp;
tmp.parse_utf8(utf8string, utf8bytes);
for (int i = 0; i < tmp.length(); i++) {
Ref<InputEventKey> k;
k.instance();
if (keycode == 0 && tmp[i] == 0) {
continue;
}
get_key_modifier_state(xkeyevent->state, k);
k->set_unicode(tmp[i]);
k->set_pressed(keypress);
k->set_scancode(keycode);
k->set_echo(false);
if (k->get_scancode() == KEY_BACKTAB) {
//make it consistent across platforms.
k->set_scancode(KEY_TAB);
k->set_shift(true);
}
input->accumulate_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 pigui keycode from the keysym */
// KeyMappingX11 just translated the X11 keysym to a PIGUI
// keysym, so it works in all platforms the same.
unsigned int keycode = KeyMappingX11::get_keycode(keysym_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 (keycode == 0 && unicode == 0)
return;
/* 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.instance();
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.
::Time tresh = ABSDIFF(peek_event.xkey.time, xkeyevent->time);
if (peek_event.type == KeyPress && tresh < 5) {
KeySym rk;
XLookupString((XKeyEvent *)&peek_event, str, 256, &rk, NULL);
if (rk == keysym_keycode) {
// Consume to next event.
++p_event_index;
_handle_key_event((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 >= 'a' && keycode <= 'z')
keycode -= 'a' - 'A';
k->set_scancode(keycode);
k->set_unicode(unicode);
k->set_echo(p_echo);
if (k->get_scancode() == KEY_BACKTAB) {
//make it consistent across platforms.
k->set_scancode(KEY_TAB);
k->set_shift(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_scancode() == KEY_SHIFT)
k->set_shift(false);
else if (k->get_scancode() == KEY_CONTROL)
k->set_control(false);
else if (k->get_scancode() == KEY_ALT)
k->set_alt(false);
else if (k->get_scancode() == KEY_META)
k->set_metakey(false);
}
bool last_is_pressed = Input::get_singleton()->is_key_pressed(k->get_scancode());
if (k->is_pressed()) {
if (last_is_pressed) {
k->set_echo(true);
}
}
//printf("key: %x\n",k->get_scancode());
input->accumulate_input_event(k);
}
Atom OS_X11::_process_selection_request_target(Atom p_target, Window p_requestor, Atom p_property) 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,
NULL,
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 = OS::get_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 OS_X11::_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 = NULL;
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);
}
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);
}
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);
}
struct Property {
unsigned char *data;
int format, nitems;
Atom type;
};
static Property 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 = 0;
int read_bytes = 1024;
//Keep trying to read the property until there are no
//bytes unread.
if (p_property != None) {
do {
if (ret != 0)
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, 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 && String(XGetAtomName(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 && String(XGetAtomName(p_disp, p_t1)) == target_type)
return p_t1;
if (p_t2 != None && String(XGetAtomName(p_disp, p_t2)) == target_type)
return p_t2;
if (p_t3 != None && String(XGetAtomName(p_disp, p_t3)) == target_type)
return p_t3;
return None;
}
void OS_X11::_window_changed(XEvent *event) {
if (xic) {
// Not portable.
set_ime_position(Point2(0, 1));
}
if ((event->xconfigure.width == current_videomode.width) &&
(event->xconfigure.height == current_videomode.height))
return;
current_videomode.width = event->xconfigure.width;
current_videomode.height = event->xconfigure.height;
}
void OS_X11::_poll_events_thread(void *ud) {
OS_X11 *os = (OS_X11 *)ud;
os->_poll_events();
}
Bool OS_X11::_predicate_all_events(Display *display, XEvent *event, XPointer arg) {
// Just accept all events.
return True;
}
bool OS_X11::_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, NULL, NULL, &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 OS_X11::_poll_events() {
while (!events_thread_done) {
_wait_for_events();
// Process events from the queue.
{
MutexLock mutex_lock(events_mutex);
// Non-blocking wait for next event and remove it from the queue.
XEvent ev;
while (XCheckIfEvent(x11_display, &ev, _predicate_all_events, NULL)) {
// 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;
}
polled_events.push_back(ev);
}
}
}
}
void OS_X11::process_xevents() {
//printf("checking events %i\n", XPending(x11_display));
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;
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();
}
for (uint32_t event_index = 0; event_index < events.size(); ++event_index) {
XEvent &event = events[event_index];
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)) {
Map<int, Vector2>::Element *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)) {
Map<int, Vector2>::Element *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 != Vector2()) {
xi.tilt.x = ((*values - pen_tilt_x_range[0]) / (pen_tilt_x_range[1] - pen_tilt_x_range[0])) * 2 - 1;
}
}
values++;
}
if (XIMaskIsSet(raw_event->valuators.mask, VALUATOR_TILTY)) {
Map<int, Vector2>::Element *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 != Vector2()) {
xi.tilt.y = ((*values - pen_tilt_y_range[0]) / (pen_tilt_y_range[1] - pen_tilt_y_range[0])) * 2 - 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;
Map<int, Vector2>::Element *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: // Fall-through
// Disabled hand-in-hand with the grabbing
//XIAllowTouchEvents(x11_display, event_data->deviceid, event_data->detail, x11_window, XIAcceptTouch);
case XI_TouchEnd: {
bool is_begin = event_data->evtype == XI_TouchBegin;
Ref<InputEventScreenTouch> st;
st.instance();
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->accumulate_input_event(st);
} else {
if (!xi.state.has(index)) // Defensive
break;
xi.state.erase(index);
input->accumulate_input_event(st);
}
} break;
case XI_TouchUpdate: {
Map<int, Vector2>::Element *curr_pos_elem = xi.state.find(index);
if (!curr_pos_elem) { // Defensive
break;
}
if (curr_pos_elem->value() != pos) {
Ref<InputEventScreenDrag> sd;
sd.instance();
sd->set_index(index);
sd->set_position(pos);
sd->set_relative(pos - curr_pos_elem->value());
input->accumulate_input_event(sd);
curr_pos_elem->value() = pos;
}
} break;
#endif
}
}
}
XFreeEventData(x11_display, &event.xcookie);
switch (event.type) {
case Expose:
Main::force_redraw();
break;
case NoExpose:
minimized = true;
break;
case VisibilityNotify: {
XVisibilityEvent *visibility = (XVisibilityEvent *)&event;
minimized = (visibility->state == VisibilityFullyObscured);
} break;
case LeaveNotify: {
if (main_loop && !mouse_mode_grab)
main_loop->notification(MainLoop::NOTIFICATION_WM_MOUSE_EXIT);
} break;
case EnterNotify: {
if (main_loop && !mouse_mode_grab)
main_loop->notification(MainLoop::NOTIFICATION_WM_MOUSE_ENTER);
} break;
case FocusIn:
minimized = false;
window_has_focus = true;
main_loop->notification(MainLoop::NOTIFICATION_WM_FOCUS_IN);
window_focused = true;
if (mouse_mode_grab) {
// Show and update the cursor if confined and the window regained focus.
if (mouse_mode == MOUSE_MODE_CONFINED)
XUndefineCursor(x11_display, x11_window);
else if (mouse_mode == MOUSE_MODE_CAPTURED) // or re-hide it in captured mode
XDefineCursor(x11_display, x11_window, null_cursor);
XGrabPointer(
x11_display, x11_window, True,
ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
GrabModeAsync, GrabModeAsync, 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 (xic) {
// Block events polling while changing input focus
// because it triggers some event polling internally.
MutexLock mutex_lock(events_mutex);
XSetICFocus(xic);
}
break;
case FocusOut:
window_has_focus = false;
input->release_pressed_events();
main_loop->notification(MainLoop::NOTIFICATION_WM_FOCUS_OUT);
window_focused = false;
if (mouse_mode_grab) {
//dear X11, I try, I really try, but you never work, you do whathever 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, 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 (Map<int, Vector2>::Element *E = xi.state.front(); E; E = E->next()) {
Ref<InputEventScreenTouch> st;
st.instance();
st->set_index(E->key());
st->set_position(E->get());
input->accumulate_input_event(st);
}
xi.state.clear();
#endif
if (xic) {
// Block events polling while changing input focus
// because it triggers some event polling internally.
MutexLock mutex_lock(events_mutex);
XUnsetICFocus(xic);
}
break;
case ConfigureNotify:
_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.instance();
get_key_modifier_state(event.xbutton.state, mb);
mb->set_button_index(event.xbutton.button);
if (mb->get_button_index() == 2)
mb->set_button_index(3);
else if (mb->get_button_index() == 3)
mb->set_button_index(2);
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));
if (event.type == ButtonPress) {
uint64_t diff = get_ticks_usec() / 1000 - last_click_ms;
if (mb->get_button_index() == last_click_button_index) {
if (diff < 400 && Point2(last_click_pos).distance_to(Point2(event.xbutton.x, event.xbutton.y)) < 5) {
last_click_ms = 0;
last_click_pos = Point2(-100, -100);
last_click_button_index = -1;
mb->set_doubleclick(true);
}
} else if (mb->get_button_index() < 4 || mb->get_button_index() > 7) {
last_click_button_index = mb->get_button_index();
}
if (!mb->is_doubleclick()) {
last_click_ms += diff;
last_click_pos = Point2(event.xbutton.x, event.xbutton.y);
}
}
input->accumulate_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.
while (true) {
if (mouse_mode == MOUSE_MODE_CAPTURED && event.xmotion.x == current_videomode.width / 2 && event.xmotion.y == current_videomode.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.
Point2 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;
}
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 = window_has_focus; // 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...
Point2 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(current_videomode.width / 2, current_videomode.height / 2);
}
Ref<InputEventMouseMotion> mm;
mm.instance();
if (xi.pressure_supported) {
mm->set_pressure(xi.pressure);
} else {
mm->set_pressure((get_mouse_button_state() & (1 << (BUTTON_LEFT - 1))) ? 1.0f : 0.0f);
}
mm->set_tilt(xi.tilt);
// Make the absolute position integral so it doesn't look _too_ weird :)
Point2i posi(pos);
get_key_modifier_state(event.xmotion.state, mm);
mm->set_button_mask(get_mouse_button_state());
mm->set_position(posi);
mm->set_global_position(posi);
input->set_mouse_position(posi);
mm->set_speed(input->get_last_mouse_speed());
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 (window_has_focus || !mouse_mode_grab)
input->accumulate_input_event(mm);
} break;
case KeyPress:
case KeyRelease: {
last_timestamp = event.xkey.time;
// key event is a little complex, so
// it will be handled in its own function.
_handle_key_event((XKeyEvent *)&event, events, event_index);
} break;
case SelectionNotify:
if (event.xselection.target == requested) {
Property p = read_property(x11_display, x11_window, XInternAtom(x11_display, "PRIMARY", 0));
Vector<String> files = String((char *)p.data).split("\n", false);
for (int i = 0; i < files.size(); i++) {
files.write[i] = files[i].replace("file://", "").http_unescape().strip_edges();
}
main_loop->drop_files(files);
//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] = 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)
main_loop->notification(MainLoop::NOTIFICATION_WM_QUIT_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);
} 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] = 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), x11_window, event.xclient.data.l[2]);
else
XConvertSelection(x11_display, xdnd_selection, requested, XInternAtom(x11_display, "PRIMARY", 0), 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] = 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, x11_window,
0, 0, 0, 0, (int)current_videomode.width / 2, (int)current_videomode.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->flush_accumulated_events();
}
MainLoop *OS_X11::get_main_loop() const {
return main_loop;
}
void OS_X11::delete_main_loop() {
// Send owned clipboard data to clipboard manager before exit.
// This has to be done here because the clipboard data is cleared before finalize().
_clipboard_transfer_ownership(XA_PRIMARY, x11_window);
_clipboard_transfer_ownership(XInternAtom(x11_display, "CLIPBOARD", 0), x11_window);
if (main_loop)
memdelete(main_loop);
main_loop = NULL;
}
void OS_X11::set_main_loop(MainLoop *p_main_loop) {
main_loop = p_main_loop;
input->set_main_loop(p_main_loop);
}
bool OS_X11::can_draw() const {
return !minimized;
};
void OS_X11::set_clipboard(const String &p_text) {
{
// The clipboard content can be accessed while polling for events.
MutexLock mutex_lock(events_mutex);
OS::set_clipboard(p_text);
}
XSetSelectionOwner(x11_display, XA_PRIMARY, x11_window, CurrentTime);
XSetSelectionOwner(x11_display, XInternAtom(x11_display, "CLIPBOARD", 0), x11_window, CurrentTime);
};
Bool OS_X11::_predicate_clipboard_selection(Display *display, XEvent *event, XPointer arg) {
if (event->type == SelectionNotify && event->xselection.requestor == *(Window *)arg) {
return True;
} else {
return False;
}
}
Bool OS_X11::_predicate_clipboard_incr(Display *display, XEvent *event, XPointer arg) {
if (event->type == PropertyNotify && event->xproperty.state == PropertyNewValue) {
return True;
} else {
return False;
}
}
String OS_X11::_get_clipboard_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) {
return OS::get_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.
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, NULL)) {
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);
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 OS_X11::_get_clipboard(Atom p_source, Window x11_window) const {
String ret;
Atom utf8_atom = XInternAtom(x11_display, "UTF8_STRING", True);
if (utf8_atom != None) {
ret = _get_clipboard_impl(p_source, x11_window, utf8_atom);
}
if (ret.empty()) {
ret = _get_clipboard_impl(p_source, x11_window, XA_STRING);
}
return ret;
}
String OS_X11::get_clipboard() const {
String ret;
ret = _get_clipboard(XInternAtom(x11_display, "CLIPBOARD", 0), x11_window);
if (ret.empty()) {
ret = _get_clipboard(XA_PRIMARY, x11_window);
};
return ret;
}
Bool OS_X11::_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 OS_X11::_clipboard_transfer_ownership(Atom p_source, Window x11_window) const {
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;
}
}
}
}
}
String OS_X11::get_name() const {
return "X11";
}
Error OS_X11::shell_open(String p_uri) {
Error ok;
int err_code;
List<String> args;
args.push_back(p_uri);
// Agnostic
ok = execute("xdg-open", args, true, NULL, NULL, &err_code);
if (ok == OK && !err_code) {
return OK;
} else if (err_code == 2) {
return ERR_FILE_NOT_FOUND;
}
// GNOME
args.push_front("open"); // The command is `gio open`, so we need to add it to args
ok = execute("gio", args, true, NULL, NULL, &err_code);
if (ok == OK && !err_code) {
return OK;
} else if (err_code == 2) {
return ERR_FILE_NOT_FOUND;
}
args.pop_front();
ok = execute("gvfs-open", args, true, NULL, NULL, &err_code);
if (ok == OK && !err_code) {
return OK;
} else if (err_code == 2) {
return ERR_FILE_NOT_FOUND;
}
// KDE
ok = execute("kde-open5", args, true, NULL, NULL, &err_code);
if (ok == OK && !err_code) {
return OK;
}
ok = execute("kde-open", args, true, NULL, NULL, &err_code);
return !err_code ? ok : FAILED;
}
bool OS_X11::_check_internal_feature_support(const String &p_feature) {
return p_feature == "pc";
}
String OS_X11::get_config_path() const {
if (has_environment("XDG_CONFIG_HOME")) {
return get_environment("XDG_CONFIG_HOME");
} else if (has_environment("HOME")) {
return get_environment("HOME").plus_file(".config");
} else {
return ".";
}
}
String OS_X11::get_data_path() const {
if (has_environment("XDG_DATA_HOME")) {
return get_environment("XDG_DATA_HOME");
} else if (has_environment("HOME")) {
return get_environment("HOME").plus_file(".local/share");
} else {
return get_config_path();
}
}
String OS_X11::get_cache_path() const {
if (has_environment("XDG_CACHE_HOME")) {
return get_environment("XDG_CACHE_HOME");
} else if (has_environment("HOME")) {
return get_environment("HOME").plus_file(".cache");
} else {
return get_config_path();
}
}
String OS_X11::get_system_dir(SystemDir p_dir) const {
String xdgparam;
switch (p_dir) {
case SYSTEM_DIR_DESKTOP: {
xdgparam = "DESKTOP";
} break;
case SYSTEM_DIR_DCIM: {
xdgparam = "PICTURES";
} break;
case SYSTEM_DIR_DOCUMENTS: {
xdgparam = "DOCUMENTS";
} break;
case SYSTEM_DIR_DOWNLOADS: {
xdgparam = "DOWNLOAD";
} break;
case SYSTEM_DIR_MOVIES: {
xdgparam = "VIDEOS";
} break;
case SYSTEM_DIR_MUSIC: {
xdgparam = "MUSIC";
} break;
case SYSTEM_DIR_PICTURES: {
xdgparam = "PICTURES";
} break;
case SYSTEM_DIR_RINGTONES: {
xdgparam = "MUSIC";
} break;
}
String pipe;
List<String> arg;
arg.push_back(xdgparam);
Error err = const_cast<OS_X11 *>(this)->execute("xdg-user-dir", arg, true, NULL, &pipe);
if (err != OK)
return ".";
return pipe.strip_edges();
}
void OS_X11::move_window_to_foreground() {
XEvent xev;
Atom net_active_window = XInternAtom(x11_display, "_NET_ACTIVE_WINDOW", False);
memset(&xev, 0, sizeof(xev));
xev.type = ClientMessage;
xev.xclient.window = 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);
}
void OS_X11::set_cursor_shape(CursorShape p_shape) {
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) {
XDefineCursor(x11_display, x11_window, cursors[p_shape]);
} else if (cursors[CURSOR_ARROW] != None) {
XDefineCursor(x11_display, x11_window, cursors[CURSOR_ARROW]);
}
}
current_cursor = p_shape;
}
OS::CursorShape OS_X11::get_cursor_shape() const {
return current_cursor;
}
void OS_X11::set_custom_mouse_cursor(const RES &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) {
if (p_cursor.is_valid()) {
Map<CursorShape, Vector<Variant> >::Element *cursor_c = cursors_cache.find(p_shape);
if (cursor_c) {
if (cursor_c->get()[0] == p_cursor && cursor_c->get()[1] == p_hotspot) {
set_cursor_shape(p_shape);
return;
}
cursors_cache.erase(p_shape);
}
Ref<Texture> texture = p_cursor;
Ref<AtlasTexture> atlas_texture = p_cursor;
Ref<Image> image;
Size2 texture_size;
Rect2 atlas_rect;
if (texture.is_valid()) {
image = texture->get_data();
}
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_data();
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);
image->lock();
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();
}
image->unlock();
ERR_FAIL_COND(cursor_image->pixels == NULL);
// 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) {
XDefineCursor(x11_display, 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;
set_cursor_shape(c);
cursors_cache.erase(p_shape);
}
}
void OS_X11::release_rendering_thread() {
#if defined(OPENGL_ENABLED)
context_gl->release_current();
#endif
}
void OS_X11::make_rendering_thread() {
#if defined(OPENGL_ENABLED)
context_gl->make_current();
#endif
}
void OS_X11::swap_buffers() {
#if defined(OPENGL_ENABLED)
context_gl->swap_buffers();
#endif
}
void OS_X11::alert(const String &p_alert, const String &p_title) {
if (is_no_window_mode_enabled()) {
print_line("ALERT: " + p_title + ": " + p_alert);
return;
}
const char *message_programs[] = { "zenity", "kdialog", "Xdialog", "xmessage" };
String path = get_environment("PATH");
Vector<String> path_elems = path.split(":", false);
String program;
for (int i = 0; i < path_elems.size(); i++) {
for (uint64_t k = 0; k < sizeof(message_programs) / sizeof(char *); k++) {
String tested_path = path_elems[i].plus_file(message_programs[k]);
if (FileAccess::exists(tested_path)) {
program = tested_path;
break;
}
}
if (program.length())
break;
}
List<String> args;
if (program.ends_with("zenity")) {
args.push_back("--error");
args.push_back("--width");
args.push_back("500");
args.push_back("--title");
args.push_back(p_title);
args.push_back("--text");
args.push_back(p_alert);
}
if (program.ends_with("kdialog")) {
args.push_back("--error");
args.push_back(p_alert);
args.push_back("--title");
args.push_back(p_title);
}
if (program.ends_with("Xdialog")) {
args.push_back("--title");
args.push_back(p_title);
args.push_back("--msgbox");
args.push_back(p_alert);
args.push_back("0");
args.push_back("0");
}
if (program.ends_with("xmessage")) {
args.push_back("-center");
args.push_back("-title");
args.push_back(p_title);
args.push_back(p_alert);
}
if (program.length()) {
execute(program, args, true);
} else {
print_line(p_alert);
}
}
bool g_set_icon_error = false;
int set_icon_errorhandler(Display *dpy, XErrorEvent *ev) {
g_set_icon_error = true;
return 0;
}
void OS_X11::set_icon(const Ref<Image> &p_icon) {
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;
PoolVector<uint8_t>::Read r = img->get_data().read();
long *wr = &pd.write[2];
uint8_t const *pr = r.ptr();
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, 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, x11_window, net_wm_icon);
}
XFlush(x11_display);
XSetErrorHandler(oldHandler);
}
void OS_X11::force_process_input() {
process_xevents(); // get rid of pending events
#ifdef JOYDEV_ENABLED
joypad->process_joypads();
#endif
}
void OS_X11::run() {
force_quit = false;
if (!main_loop)
return;
main_loop->init();
//uint64_t last_ticks=get_ticks_usec();
//int frames=0;
//uint64_t frame=0;
while (!force_quit) {
process_xevents(); // get rid of pending events
#ifdef JOYDEV_ENABLED
joypad->process_joypads();
#endif
if (Main::iteration())
break;
};
main_loop->finish();
}
bool OS_X11::is_joy_known(int p_device) {
return input->is_joy_mapped(p_device);
}
String OS_X11::get_joy_guid(int p_device) const {
return input->get_joy_guid_remapped(p_device);
}
void OS_X11::_set_use_vsync(bool p_enable) {
#if defined(OPENGL_ENABLED)
if (context_gl)
context_gl->set_use_vsync(p_enable);
#endif
}
/*
bool OS_X11::is_vsync_enabled() const {
if (context_gl)
return context_gl->is_using_vsync();
return true;
}
*/
void OS_X11::set_context(int p_context) {
XClassHint *classHint = XAllocClassHint();
if (classHint) {
CharString name_str;
switch (p_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 (p_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, x11_window, classHint);
XFree(classHint);
}
}
OS::PowerState OS_X11::get_power_state() {
return power_manager->get_power_state();
}
int OS_X11::get_power_seconds_left() {
return power_manager->get_power_seconds_left();
}
int OS_X11::get_power_percent_left() {
return power_manager->get_power_percent_left();
}
void OS_X11::disable_crash_handler() {
crash_handler.disable();
}
bool OS_X11::is_disable_crash_handler() const {
return crash_handler.is_disabled();
}
static String get_mountpoint(const String &p_path) {
struct stat s;
if (stat(p_path.utf8().get_data(), &s)) {
return "";
}
#ifdef HAVE_MNTENT
dev_t dev = s.st_dev;
FILE *fd = setmntent("/proc/mounts", "r");
if (!fd) {
return "";
}
struct mntent mnt;
char buf[1024];
size_t buflen = 1024;
while (getmntent_r(fd, &mnt, buf, buflen)) {
if (!stat(mnt.mnt_dir, &s) && s.st_dev == dev) {
endmntent(fd);
return String(mnt.mnt_dir);
}
}
endmntent(fd);
#endif
return "";
}
Error OS_X11::move_to_trash(const String &p_path) {
String trash_can = "";
String mnt = get_mountpoint(p_path);
// If there is a directory "[Mountpoint]/.Trash-[UID]/files", use it as the trash can.
if (mnt != "") {
String path(mnt + "/.Trash-" + itos(getuid()) + "/files");
struct stat s;
if (!stat(path.utf8().get_data(), &s)) {
trash_can = path;
}
}
// Otherwise, if ${XDG_DATA_HOME} is defined, use "${XDG_DATA_HOME}/Trash/files" as the trash can.
if (trash_can == "") {
char *dhome = getenv("XDG_DATA_HOME");
if (dhome) {
trash_can = String(dhome) + "/Trash/files";
}
}
// Otherwise, if ${HOME} is defined, use "${HOME}/.local/share/Trash/files" as the trash can.
if (trash_can == "") {
char *home = getenv("HOME");
if (home) {
trash_can = String(home) + "/.local/share/Trash/files";
}
}
// Issue an error if none of the previous locations is appropriate for the trash can.
if (trash_can == "") {
ERR_PRINTS("move_to_trash: Could not determine the trash can location");
return FAILED;
}
// Create needed directories for decided trash can location.
DirAccess *dir_access = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
Error err = dir_access->make_dir_recursive(trash_can);
memdelete(dir_access);
// Issue an error if trash can is not created proprely.
if (err != OK) {
ERR_PRINTS("move_to_trash: Could not create the trash can \"" + trash_can + "\"");
return err;
}
// The trash can is successfully created, now move the given resource to it.
// Do not use DirAccess:rename() because it can't move files across multiple mountpoints.
List<String> mv_args;
mv_args.push_back(p_path);
mv_args.push_back(trash_can);
int retval;
err = execute("mv", mv_args, true, NULL, NULL, &retval);
// Issue an error if "mv" failed to move the given resource to the trash can.
if (err != OK || retval != 0) {
ERR_PRINTS("move_to_trash: Could not move the resource \"" + p_path + "\" to the trash can \"" + trash_can + "\"");
return FAILED;
}
return OK;
}
OS::LatinKeyboardVariant OS_X11::get_latin_keyboard_variant() const {
XkbDescRec *xkbdesc = XkbAllocKeyboard();
ERR_FAIL_COND_V(!xkbdesc, LATIN_KEYBOARD_QWERTY);
XkbGetNames(x11_display, XkbSymbolsNameMask, xkbdesc);
ERR_FAIL_COND_V(!xkbdesc->names, LATIN_KEYBOARD_QWERTY);
ERR_FAIL_COND_V(!xkbdesc->names->symbols, LATIN_KEYBOARD_QWERTY);
char *layout = XGetAtomName(x11_display, xkbdesc->names->symbols);
ERR_FAIL_COND_V(!layout, LATIN_KEYBOARD_QWERTY);
Vector<String> info = String(layout).split("+");
ERR_FAIL_INDEX_V(1, info.size(), LATIN_KEYBOARD_QWERTY);
if (info[1].find("colemak") != -1) {
return LATIN_KEYBOARD_COLEMAK;
} else if (info[1].find("qwertz") != -1) {
return LATIN_KEYBOARD_QWERTZ;
} else if (info[1].find("azerty") != -1) {
return LATIN_KEYBOARD_AZERTY;
} else if (info[1].find("qzerty") != -1) {
return LATIN_KEYBOARD_QZERTY;
} else if (info[1].find("dvorak") != -1) {
return LATIN_KEYBOARD_DVORAK;
} else if (info[1].find("neo") != -1) {
return LATIN_KEYBOARD_NEO;
}
return LATIN_KEYBOARD_QWERTY;
}
int OS_X11::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 != NULL) {
_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 OS_X11::keyboard_get_current_layout() const {
XkbStateRec state;
XkbGetState(x11_display, XkbUseCoreKbd, &state);
return state.group;
}
void OS_X11::keyboard_set_current_layout(int p_index) {
ERR_FAIL_INDEX(p_index, keyboard_get_layout_count());
XkbLockGroup(x11_display, XkbUseCoreKbd, p_index);
}
String OS_X11::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 != NULL) {
_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) {
char *name = XGetAtomName(x11_display, names);
Vector<String> info = String(name).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) + ").");
}
XFree(name);
}
XkbFreeKeyboard(kbd, 0, true);
}
return ret.substr(0, 2);
}
String OS_X11::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 != NULL) {
_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) {
char *full_name = XGetAtomName(x11_display, groups[p_index]);
ret.parse_utf8(full_name);
XFree(full_name);
} else {
ERR_PRINT("Index " + itos(p_index) + "is out of bounds (" + itos(_group_count) + ").");
}
XkbFreeKeyboard(kbd, 0, true);
}
return ret;
}
void OS_X11::update_real_mouse_position() {
Window root_return, child_return;
int root_x, root_y, win_x, win_y;
unsigned int mask_return;
Bool xquerypointer_result = XQueryPointer(x11_display, 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 <= current_videomode.width && win_y <= current_videomode.height) {
last_mouse_pos.x = win_x;
last_mouse_pos.y = win_y;
last_mouse_pos_valid = true;
input->set_mouse_position(last_mouse_pos);
}
}
}
OS_X11::OS_X11() {
#ifdef PULSEAUDIO_ENABLED
AudioDriverManager::add_driver(&driver_pulseaudio);
#endif
#ifdef ALSA_ENABLED
AudioDriverManager::add_driver(&driver_alsa);
#endif
xi.opcode = 0;
xi.last_relative_time = 0;
layered_window = false;
minimized = false;
window_focused = true;
xim_style = 0L;
mouse_mode = MOUSE_MODE_VISIBLE;
last_position_before_fs = Vector2();
}
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