110 lines
2.8 KiB
C++
110 lines
2.8 KiB
C++
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#include <Spectre/System/Log.h>
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#include <Platform/PlatformMisc.h>
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#include "Xlib.h"
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#include <X11/extensions/Xrandr.h>
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#include <algorithm>
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namespace sp {
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// Code "borrowed" from SFML :)
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// see: https://github.com/SFML/SFML/blob/master/src/SFML/Window/Unix/VideoModeImpl.cpp
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void PlatformMisc::GetDisplayModes(std::vector<DisplayMode>& modes)
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{
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::Display *disp = Xlib::getDisplay();
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if (disp) {
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int scr = DefaultScreen(disp);
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// Check for XRandR.
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int ver;
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if (XQueryExtension(disp, "RANDR", &ver, &ver, &ver)) {
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XRRScreenConfiguration* config = ::XRRGetScreenInfo(disp, RootWindow(disp, scr));
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if (config) {
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int nbSizes;
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XRRScreenSize* sizes = ::XRRConfigSizes(config, &nbSizes);
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if (sizes && nbSizes > 0) {
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int nbDepths = 0;
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int* depths = ::XListDepths(disp, scr, &nbDepths);
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if (depths && nbDepths > 0) {
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for(int i = 0; i < nbDepths; i++) {
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for(int j = 0; j < nbSizes; j++) {
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DisplayMode mode(sizes[j].width, sizes[j].height, depths[i]);
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::Rotation rot;
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XRRConfigRotations(config, &rot);
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if (rot == RR_Rotate_90 || rot == RR_Rotate_270) {
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std::swap(mode.width, mode.height);
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}
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if (std::find(modes.begin(), modes.end(), mode) == modes.end()) {
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modes.push_back(mode);
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}
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}
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}
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XFree(depths);
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}
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}
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} else {
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Log::error("Failed to get screen configuration while trying to get display modes.");
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}
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XRRFreeScreenConfigInfo(config);
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} else {
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Log::error("Failed to use XRandR extension while trying to get display modes.");
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}
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} else {
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Log::error("Failed to connect to the X server while trying to get display modes.");
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}
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}
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DisplayMode PlatformMisc::GetDesktopMode()
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{
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DisplayMode mode;
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::Display *disp = Xlib::getDisplay();
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if (disp) {
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int scr = DefaultScreen(disp);
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// Check for XRandR.
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int ver;
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if (XQueryExtension(disp, "RANDR", &ver, &ver, &ver)) {
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XRRScreenConfiguration* config = ::XRRGetScreenInfo(disp, RootWindow(disp, scr));
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if (config) {
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int nbSizes;
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::Rotation rot;
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int current = XRRConfigCurrentConfiguration(config, &rot);
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XRRScreenSize* sizes = ::XRRConfigSizes(config, &nbSizes);
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if (sizes && nbSizes > 0) {
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mode = DisplayMode(sizes[current].width, sizes[current].height, DefaultDepth(disp, scr));
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XRRConfigRotations(config, &rot);
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if (rot == RR_Rotate_90 || rot == RR_Rotate_270) {
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std::swap(mode.width, mode.height);
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}
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}
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} else {
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Log::error("Failed to get screen configuration while trying to get desktop display mode.");
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}
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XRRFreeScreenConfigInfo(config);
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} else {
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Log::error("Failed to use XRandR extension while trying to get desktop display mode.");
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}
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} else {
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Log::error("Failed to connect to the X server while trying to get desktop display mode.");
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}
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return mode;
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}
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} // namespace sp
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