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Merge pull request #21460 from hpvb/fix-19716

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When setting an X11 icon fails, try halving the size
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Rémi Verschelde 2018-08-27 10:03:47 +02:00 committed by GitHub
commit 3c0ea513de
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1 changed files with 58 additions and 17 deletions
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75
platform/x11/os_x11.cpp
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@ -2628,41 +2628,82 @@ void OS_X11::alert(const String &p_alert, const String &p_title) {
return;
}
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);
int w = img->get_width();
int h = img->get_height();
while (true) {
int w = img->get_width();
int h = img->get_height();
// We're using long to have wordsize (32Bit build -> 32 Bits, 64 Bit build -> 64 Bits
Vector<long> pd;
if (g_set_icon_error) {
g_set_icon_error = false;
pd.resize(2 + w * h);
WARN_PRINT("Icon too large, attempting to resize icon.");
pd.write[0] = w;
pd.write[1] = h;
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;
}
PoolVector<uint8_t>::Read r = img->get_data().read();
w = new_width;
h = new_height;
long *wr = &pd.write[2];
uint8_t const *pr = r.ptr();
if (!w || !h) {
WARN_PRINT("Unable to set icon.");
break;
}
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;
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;
}
XChangeProperty(x11_display, x11_window, net_wm_icon, XA_CARDINAL, 32, PropModeReplace, (unsigned char *)pd.ptr(), pd.size());
if (!g_set_icon_error)
break;
}
XChangeProperty(x11_display, x11_window, net_wm_icon, XA_CARDINAL, 32, PropModeReplace, (unsigned char *)pd.ptr(), pd.size());
} else {
XDeleteProperty(x11_display, x11_window, net_wm_icon);
}
XFlush(x11_display);
XSetErrorHandler(oldHandler);
}
void OS_X11::force_process_input() {