#include "xx.h"
#include "xprivate.h"
#include "cvt.h"
#include <QDebug>
#include <QSocketNotifier>
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
static ScreenInfo initScreenInfo(const OutputInfo *oi, const ModeMap &om)
{
ScreenInfo si;
si.position = oi->position;
si.name = oi->modelName;
si.output = oi->outputName;
si.isProjector = (oi->outputType == Projector::Yes);
if (oi->mode != nullptr) {
si.currentResolution = QSize(QSize(int(oi->mode->width), int(oi->mode->height)));
}
for (int i = 0; i < oi->output->nmode; ++i) {
if (om.contains(oi->output->modes[i])) {
auto m = om.value(oi->output->modes[i]);
const QSize size(int(m->width), int(m->height));
if (!si.modes.contains(size)) {
si.modes.append(size);
}
if (i == 0 && oi->output->npreferred > 0) {
si.preferredResolution = size;
}
}
}
return si;
}
ScreenSetup * ScreenSetup::_instance = nullptr;
static int errorHandlerX(Display*)
{
exit(1);
}
ScreenSetup::ScreenSetup() : a(new XPrivate())
{
int event_base_return, error_base_return;
if (!XRRQueryExtension(a->_display, &event_base_return, &error_base_return)) {
qDebug() << "No XRANDR extension found";
exit(1);
}
updateScreenResources();
XRRSelectInput(a->_display, DefaultRootWindow(a->_display), RROutputChangeNotifyMask);
//XSync(a->_display, False);
XSetIOErrorHandler((XIOErrorHandler) errorHandlerX);
_socketNotifier = new QSocketNotifier(qintptr(ConnectionNumber(a->_display)), QSocketNotifier::Read);
connect(_socketNotifier, &QSocketNotifier::activated, [=](int) {
XEvent ev;
qDebug() << "Socket Event";
while (XPending(a->_display) > 0) {
XNextEvent(a->_display, &ev);
if (ev.type - event_base_return != RRNotify) {
qDebug() << "Received unknown X event";
continue;
}
qDebug() << "Got Change Event";
XRROutputChangeNotifyEvent *oce = reinterpret_cast<XRROutputChangeNotifyEvent*>(&ev);
XRRScreenResources *sr = XRRGetScreenResources(oce->display, oce->window);
if (sr == nullptr) {
emit outputConfigChanged(ConnectionEvent::Unknown);
continue;
}
XRROutputInfo *oi = XRRGetOutputInfo(a->_display, sr, oce->output);
if (oi == nullptr) {
XRRFreeScreenResources(sr);
emit outputConfigChanged(ConnectionEvent::Unknown);
continue;
}
if (oi->connection == RR_Connected) {
emit outputConfigChanged(ConnectionEvent::Connected);
} else if (oi->connection == RR_Disconnected) {
emit outputConfigChanged(ConnectionEvent::Disconnected);
} else {
emit outputConfigChanged(ConnectionEvent::Unknown);
}
XRRFreeOutputInfo(oi);
XRRFreeScreenResources(sr);
}
});
}
static double toVertRefresh(const XRRModeInfo *mode)
{
if (mode->hTotal > 0 && mode->vTotal > 0)
return (double(mode->dotClock) / (double(mode->hTotal) * double(mode->vTotal)));
return 0;
}
//___________________________________________________________________________
void ScreenSetup::updateScreenResources()
{
a->updateScreenResources();
}
QMap<QString, ScreenInfo> ScreenSetup::getScreenPositions() const
{
QMap<QString, ScreenInfo> ret;
for (auto oi : a->_outputMap) {
ret.insert(oi->outputName, initScreenInfo(oi, a->_modeMap));
}
return ret;
}
/**
* Create common modes and add them to all outputs.
* Make sure every output has some variant of the most commonly
* used modes.
*/
void ScreenSetup::initModes()
{
// First copy typical resolutions to all outputs
#define RES(x,y) (((y) << 16) | (x))
QSet<quint32> wanted;
wanted << RES(1280, 720) << RES(1280, 800) << RES(1920, 1080);
for (XRRModeInfo *mode : a->_modeMap) {
if (toVertRefresh(mode) < 58 || toVertRefresh(mode) > 61)
continue; // Play it safe and consider only those for copying that are 60Hz
wanted.remove(RES(mode->width, mode->height));
// Make sure all outputs got it
for (OutputInfo *info : a->_outputMap) {
if (a->getOutputModeForResolution(info->output, mode->width, mode->height))
continue;
XRRAddOutputMode(a->_display, info->id, mode->id);
}
}
#undef RES
// Create those that no output supported
for (auto res : wanted) {
unsigned int x = res & 0xffff;
unsigned int y = res >> 16;
createMode(x, y, 60, QString::asprintf("%ux%u", x, y));
}
if (!wanted.isEmpty()) {
updateScreenResources();
}
// Finally copy all those the projector supports to other outputs
for (auto key : a->_outputMap.keys()) {
OutputInfo *oi = a->_outputMap[key];
if (oi->outputType == Projector::Yes) {
a->copyModesToAll(key, oi->output->nmode);
}
}
updateScreenResources();
}
static QSize getTotalSizeHorz(const QList<QSize> &list)
{
QSize ret(0, 0);
for (auto e : list) {
ret.rwidth() += e.width();
ret.rheight() = qMax(ret.height(), e.height());
}
return ret;
}
ScreenMode ScreenSetup::getCurrentMode()
{
bool notAtOrigin = false;
for (auto oi : a->_outputMap) {
if (oi->mode != nullptr) {
if (oi->crtc->x != 0 || oi->crtc->y != 0) {
notAtOrigin = true;
}
}
}
if (a->_outputMap.size() == 1)
return ScreenMode::Single;
if (a->_outputMap.size() > 2)
return ScreenMode::Advanced;
if (notAtOrigin)
return ScreenMode::Dual;
return ScreenMode::Clone;
}
ScreenMode ScreenSetup::setDefaultMode(bool dryRun)
{
if (a->_outputMap.size() == 1) // Only one output exists, do nothing
return ScreenMode::Single;
QMap<QString, OutputInfo*> screenMap;
QMap<QString, OutputInfo*> projectorMap;
for (auto o : a->_outputMap) {
qDebug() << o->outputName << quint32(o->outputType);
if (o->outputType == Projector::Yes) {
projectorMap.insert(o->outputName, o);
} else {
screenMap.insert(o->outputName, o);
}
}
auto projectors = projectorMap.values();
auto screens = screenMap.values();
qDebug() << projectors.size() << "projectors," << screens.size() << "screens.";
QList<QSize> outputSizes = a->getTotalSize(projectors, screens);
if (outputSizes.isEmpty())
return ScreenMode::Advanced; // Dunno lol
QSize screenSize = getTotalSizeHorz(outputSizes);
if (!dryRun) {
a->createCrtcBackup();
XGrabServer(a->_display);
a->disconnectAllCrtcs();
// Set new screen size
a->setScreenSize(screenSize);
}
qDebug() << "Virtual screen size:" << screenSize << "with" << outputSizes.size() << "different screens.";
int offset = 0;
for (int i = 0; i < outputSizes.size(); ++i) {
const QSize &size = outputSizes.at(i);
if (i < projectors.size()) {
a->setOutputResolution(projectors.at(i), offset, 0, size, dryRun);
}
if (i < screens.size()) {
a->setOutputResolution(screens.at(i), offset, 0, size, dryRun);
}
offset += size.width();
}
if (!dryRun) {
XUngrabServer(a->_display);
XSync(a->_display, False);
}
updateScreenResources(); // Re-Read
if (outputSizes.size() == 1) // One output size, at least 2 outputs in total -- clone mode
return ScreenMode::Clone;
if (outputSizes.size() == 2 && a->_outputMap.size() == 2) // Two outputs, two sizes -- extended
return ScreenMode::Dual;
return ScreenMode::Advanced; // Must be more than 2 outputs -> something more involved
}
//___________________________________________________________________________
bool ScreenSetup::createMode(unsigned int resX, unsigned int resY, float refresh, QString name)
{
QByteArray ba = name.toLocal8Bit();
mode *mode = vert_refresh(int(resX), int(resY), refresh, 0, 0, 0);
if (mode == nullptr)
return false;
XRRModeInfo m;
memset(&m, 0, sizeof(m));
m.width = static_cast<unsigned int>(mode->hr);
m.height = static_cast<unsigned int>(mode->vr);
m.dotClock = static_cast<unsigned long>(mode->pclk) * 1000ul * 1000ul;
m.hSyncStart= static_cast<unsigned int>(mode->hss);
m.hSyncEnd = static_cast<unsigned int>(mode->hse);
m.hTotal = static_cast<unsigned int>(mode->hfl);
m.hSkew = 0;
m.vSyncStart= static_cast<unsigned int>(mode->vss);
m.vSyncEnd = static_cast<unsigned int>(mode->vse);
m.vTotal = static_cast<unsigned int>(mode->vfl);
m.id = 0;
m.name = ba.data();
m.nameLength= static_cast<unsigned int>(ba.length());
m.modeFlags = RR_VSyncPositive | RR_HSyncNegative;
free(mode);
for (XRRModeInfo *mode : a->_modeMap) {
if (mode->width == m.width && mode->height == m.height && mode->dotClock == m.dotClock)
return true; // Already exists, return true?
}
RRMode xid = XRRCreateMode(a->_display, DefaultRootWindow(a->_display), &m);
qDebug() << "Return value of create was" << xid;
// Immediately add to all screens
for (OutputInfo *info : a->_outputMap) {
XRRAddOutputMode(a->_display, info->id, xid);
}
return true;
}
//___________________________________________________________________________
ScreenSetup::~ScreenSetup()
{
delete a;
}
bool ScreenSetup::setCenteredClone()
{
a->createCrtcBackup();
XRRModeInfo *fallback = nullptr;
for (auto m : a->_modeMap) {
if (m->width == 1024 && m->height == 768) {
fallback = m;
break;
}
}
XGrabServer(a->_display);
a->disconnectAllCrtcs();
QSize screenSize;
bool ok = false;
for (auto oi : a->_outputMap) {
auto mode = a->getPreferredMode(oi, fallback);
if (mode != nullptr) {
if (int(mode->width) > screenSize.width()) {
screenSize.setWidth(mode->width);
}
if (int(mode->height) > screenSize.height()) {
screenSize.setHeight(mode->height);
}
// TODO: CENTER
const int x = (screenSize.width() - mode->width) / 2;
const int y = (screenSize.height() - mode->height) / 2;
ok = a->setOutputResolution(oi, x, y, QSize(int(mode->width), int(mode->height))) || ok;
}
}
a->setScreenSize(screenSize);
XUngrabServer(a->_display);
XSync(a->_display, False);
return ok;
}
bool ScreenSetup::setClone(const QSize &resolution)
{
a->createCrtcBackup();
XGrabServer(a->_display);
a->disconnectAllCrtcs();
a->setScreenSize(resolution);
bool ok = false;
for (auto oi : a->_outputMap) {
ok = a->setOutputResolution(oi, 0, 0, resolution) || ok;
}
XUngrabServer(a->_display);
XSync(a->_display, False);
return ok;
}
bool ScreenSetup::setCustom(const QList<QPair<QSize, QList<QString>>> &list)
{
QList<QSize> sizes;
for (auto e : list) {
if (e.second.isEmpty())
continue;
sizes.append(e.first);
}
if (sizes.isEmpty())
return false;
a->createCrtcBackup();
auto screenSize = getTotalSizeHorz(sizes);
if (screenSize.isEmpty())
return false;
XGrabServer(a->_display);
a->disconnectAllCrtcs();
a->setScreenSize(screenSize);
int x = 0;
bool ok = false;
for (auto e : list) {
if (e.second.isEmpty())
continue;
const QSize &res = e.first;
for (auto outputName : e.second) {
for (auto oi : a->_outputMap) {
if (oi->outputName != outputName)
continue;
ok = a->setOutputResolution(oi, x, 0, res) || ok;
}
}
x += res.width();
}
XUngrabServer(a->_display);
XSync(a->_display, False);
return ok;
}
void ScreenSetup::revertChanges()
{
if (a->_crtcBackup.isEmpty())
return;
qDebug() << "Starting revert";
XGrabServer(a->_display);
a->disconnectAllCrtcs();
QSize screenSize;
for (auto e : a->_crtcBackup) {
if (e->mode == None || !a->_modeMap.contains(e->mode))
continue;
screenSize = screenSize.expandedTo(QSize(e->x + int(a->_modeMap[e->mode]->width), e->y + int(a->_modeMap[e->mode]->height)));
}
a->setScreenSize(screenSize);
for (CrtcMap::iterator it = a->_crtcBackup.begin(); it != a->_crtcBackup.end(); ++it) {
auto e = it.value();
if (e->mode == None)
continue;
XRRSetCrtcConfig(a->_display, a->_screenResources, it.key(), CurrentTime,
e->x, e->y, e->mode, e->rotation, e->outputs, e->noutput);
}
XUngrabServer(a->_display);
XSync(a->_display, False);
}
static bool modeBiggerThan(const QSize &a, const QSize &b)
{
if (a.width() > b.width())
return true;
return a.width() == b.width() && a.height() > b.height();
}
ResolutionVector ScreenSetup::getCommonModes() const
{
QHash<QPair<quint32, quint32>, QSet<RROutput>> matches;
for (auto oi : a->_outputMap) {
for (int i = 0; i < oi->output->nmode; ++i) {
if (!a->_modeMap.contains(oi->output->modes[i]))
continue;
const auto mode = a->_modeMap[oi->output->modes[i]];
const QPair<quint32, quint32> pair = qMakePair(mode->width, mode->height);
matches[pair].insert(oi->id);
}
}
ResolutionVector ret;
for (auto it = matches.begin(); it != matches.end(); ++it) {
if (it.value().size() == a->_outputMap.size()) {
ret.append(QSize(int(it.key().first), int(it.key().second)));
}
}
qSort(ret.begin(), ret.end(), modeBiggerThan);
return ret;
}
/**
* Return number of connected (no active) outputs according to last query
*/
int ScreenSetup::getOutputCount() const
{
return a->_outputMap.size();
}
/**
* Query currently connected number of outputs
*/
int ScreenSetup::queryCurrentOutputCount() const
{
auto sr = XRRGetScreenResourcesCurrent(a->_display, DefaultRootWindow(a->_display));
if (sr == nullptr)
return 0;
int count = 0;
for (int i = 0; i < sr->noutput; ++i) {
XRROutputInfo* info = XRRGetOutputInfo(a->_display, sr, sr->outputs[i]);
if (info == nullptr)
continue;
if (info->connection != RR_Disconnected) {
count++;
}
XRRFreeOutputInfo(info);
}
XRRFreeScreenResources(sr);
return count;
}
const ResolutionVector &ScreenSetup::getVirtualResolutions() const
{
return a->_resolutions;
}