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[Linux/X11] Fallback to the X server root window to get screen rects, if Xinerama is not available.

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This commit is contained in:
bruvzg 2022-02-18 13:29:10 +02:00
parent 887d4bd0d9
commit 372e24265a
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GPG Key ID: 7960FCF39844EC38
1 changed files with 19 additions and 6 deletions
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25
platform/linuxbsd/display_server_x11.cpp
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@ -661,17 +661,17 @@ void DisplayServerX11::_clipboard_transfer_ownership(Atom p_source, Window x11_w
int DisplayServerX11::get_screen_count() const {
_THREAD_SAFE_METHOD_
int count = 0;
// Using Xinerama Extension
int event_base, error_base;
const Bool ext_okay = XineramaQueryExtension(x11_display, &event_base, &error_base);
if (!ext_okay) {
return 0;
if (XineramaQueryExtension(x11_display, &event_base, &error_base)) {
XineramaScreenInfo *xsi = XineramaQueryScreens(x11_display, &count);
XFree(xsi);
} else {
count = XScreenCount(x11_display);
}
int count;
XineramaScreenInfo *xsi = XineramaQueryScreens(x11_display, &count);
XFree(xsi);
return count;
}
@ -703,6 +703,19 @@ Rect2i DisplayServerX11::_screen_get_rect(int p_screen) const {
if (xsi) {
XFree(xsi);
}
} else {
int count = XScreenCount(x11_display);
if (p_screen < count) {
Window root = XRootWindow(x11_display, p_screen);
XWindowAttributes xwa;
XGetWindowAttributes(x11_display, root, &xwa);
rect.position.x = xwa.x;
rect.position.y = xwa.y;
rect.size.width = xwa.width;
rect.size.height = xwa.height;
} else {
ERR_PRINT("Invalid screen index: " + itos(p_screen) + "(count: " + itos(count) + ").");
}
}
return rect;