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When eye tracking data is lot for > N seconds handle as "not tracking"

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Revert to default look-at behaviour and saccades until tracking resumes.
This commit is contained in:
David Rowe 2015-08-07 12:23:43 -07:00
parent e2bf5cad3e
commit ea03067a02
3 changed files with 14 additions and 2 deletions
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2
interface/src/Application.cpp
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@ -2050,7 +2050,7 @@ void Application::setActiveEyeTracker() {
bool isEyeTracking = Menu::getInstance()->isOptionChecked(MenuOption::SMIEyeTracking);
bool isSimulating = Menu::getInstance()->isOptionChecked(MenuOption::SimulateEyeTracking);
eyeTracker->setEnabled(isEyeTracking, isSimulating);
if (isEyeTracking && !eyeTracker->isTracking()) {
if (isEyeTracking && !eyeTracker->isEnabled()) {
Menu::getInstance()->setIsOptionChecked(MenuOption::SMIEyeTracking, false);
isEyeTracking = false;
}

9
interface/src/devices/EyeTracker.cpp
View file

@ -13,6 +13,8 @@
#include <QMessageBox>
#include <SharedUtil.h>
#include "InterfaceLogging.h"
#include "OctreeConstants.h"
@ -36,6 +38,8 @@ EyeTracker::~EyeTracker() {
#ifdef HAVE_IVIEWHMD
void EyeTracker::processData(smi_CallbackDataStruct* data) {
_lastProcessDataTimestamp = usecTimestampNow();
if (!_isEnabled) {
return;
}
@ -150,6 +154,11 @@ void EyeTracker::reset() {
// Nothing to do.
}
bool EyeTracker::isTracking() const {
static const quint64 ACTIVE_TIMEOUT_USECS = 2000000; // 2 secs
return (usecTimestampNow() - _lastProcessDataTimestamp < ACTIVE_TIMEOUT_USECS);
}
#ifdef HAVE_IVIEWHMD
void EyeTracker::calibrate(int points) {
smi_CalibrationHMDStruct* calibrationHMDStruct;

5
interface/src/devices/EyeTracker.h
View file

@ -34,7 +34,8 @@ public:
void reset();
bool isInitialized() const { return _isInitialized; }
bool isTracking() const { return _isEnabled; }
bool isEnabled() const { return _isEnabled; }
bool isTracking() const;
bool isSimulating() const { return _isSimulating; }
glm::vec3 getLookAtPosition() const { return _lookAtPosition; } // From mid eye point in head frame.
@ -52,6 +53,8 @@ private:
bool _isEnabled = false;
bool _isSimulating = false;
quint64 _lastProcessDataTimestamp;
glm::vec3 _lookAtPosition;
};