void RenderContextImplGLX::EnumVideoModes(VideoModeList& videoModes) {
// check for xrandr support
videoModes.clear();
bool fallback = false;
if ((xrandrSupported = IsXRandrSupported())) {
XRRScreenSize* screenSize;
int nsizes = 0;
Trace("XRANDR is enabled");
screenSize = XRRSizes(display, screenIndex, &nsizes);
if (!nsizes)
fallback = true;
videoModes.reserve((size_t) nsizes);
for (int i = 0; i < nsizes; ++i) {
VideoMode vmode;
vmode.width = uint16(screenSize[i].width);
vmode.height = uint16(screenSize[i].height);
int nrates;
short* rates = XRRRates(display, screenIndex, i, &nrates);
for (int j = 0; j < nrates; ++j) {
vmode.refreshRate = uint16(rates[j]);
videoModes.push_back(vmode);
}
}
Window root = RootWindow(display, screenIndex);
Rotation rotation;
XRRScreenConfiguration *conf = XRRGetScreenInfo(display, root);
int currsize = XRRConfigCurrentConfiguration(conf, &rotation);
VideoMode current = VideoMode(screenSize[currsize].width,
screenSize[currsize].height, XRRConfigCurrentRate(conf));
std::sort(videoModes.begin(), videoModes.end());
auto it = std::find(videoModes.begin(), videoModes.end(), current);
if (it != videoModes.end())
baseContext->SetOriginalVideoMode((uint32)(it - videoModes.begin()));
else {
videoModes.push_back(current);
baseContext->SetOriginalVideoMode((uint32)videoModes.size() - 1);
}
XRRFreeScreenConfigInfo(conf);
} /* check vid modes*/
if (fallback || !videoModes.size()) {
VideoMode vmode;
vmode.width = DisplayWidth(display, screenIndex);
vmode.height = DisplayHeight(display, screenIndex);
vmode.refreshRate = 0;
videoModes.push_back(vmode);
baseContext->SetOriginalVideoMode((uint32)videoModes.size() - 1);
Error("Viewmode set in fallback mode!");
}
}
