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Automatically save and restore eye tracker calibration

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Automatically saves and restores just a single calibration so that user
doesn't have to manually save or load, which isn't very convenient to do
with an HMD on.
This commit is contained in:
David Rowe 2015-08-10 13:20:42 -07:00
parent 4f3c4a5312
commit 658434e020
1 changed files with 32 additions and 10 deletions
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42
interface/src/devices/EyeTracker.cpp
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@ -18,6 +18,10 @@
#include "InterfaceLogging.h"
#include "OctreeConstants.h"
#ifdef HAVE_IVIEWHMD
char* HIGH_FIDELITY_EYE_TRACKER_CALIBRATION = "HighFidelityEyeTrackerCalibration";
#endif
#ifdef HAVE_IVIEWHMD
static void CALLBACK eyeTrackerCallback(smi_CallbackDataStruct* data) {
auto eyeTracker = DependencyManager::get<EyeTracker>();
@ -131,26 +135,35 @@ void EyeTracker::setEnabled(bool enabled, bool simulate) {
#ifdef HAVE_IVIEWHMD
qCDebug(interfaceapp) << "Eye Tracker: Set enabled =" << enabled << ", simulate =" << simulate;
bool success = true;
int result = 0;
if (enabled && !_isStreaming) {
// There is no smi_stopStreaming() method so keep streaming once started in case tracking is re-enabled after stopping.
result = smi_startStreaming(simulate);
int result = smi_startStreaming(simulate);
if (result != SMI_RET_SUCCESS) {
qCWarning(interfaceapp) << "Eye Tracker: Error starting streaming:" << smiReturnValueToString(result);
success = false;
// Display error dialog except if SMI SDK has already displayed an error message.
if (result != SMI_ERROR_HMD_NOT_SUPPORTED) {
QMessageBox::warning(nullptr, "Eye Tracker Error", smiReturnValueToString(result));
}
}
_isStreaming = success;
_isStreaming = (result == SMI_RET_SUCCESS);
if (_isStreaming) {
// Automatically load calibration if one has been saved.
QString availableCalibrations = QString(smi_getAvailableCalibrations());
if (availableCalibrations.contains(HIGH_FIDELITY_EYE_TRACKER_CALIBRATION)) {
result = smi_loadCalibration(HIGH_FIDELITY_EYE_TRACKER_CALIBRATION);
if (result != SMI_RET_SUCCESS) {
qCWarning(interfaceapp) << "Eye Tracker: Error loading calibration:" << smiReturnValueToString(result);
QMessageBox::warning(nullptr, "Eye Tracker Error", "Error loading calibration"
+ smiReturnValueToString(result));
}
}
}
}
_isEnabled = enabled && _isStreaming;
_isSimulating = _isEnabled && simulate;
if (!success && result != SMI_ERROR_HMD_NOT_SUPPORTED) {
// Display error dialog after updating _isEnabled. Except if SMI SDK has already displayed an error message.
QMessageBox::warning(nullptr, "Eye Tracker Error", smiReturnValueToString(result));
}
#endif
}
@ -199,6 +212,11 @@ void EyeTracker::calibrate(int points) {
result = smi_calibrate();
if (result != SMI_RET_SUCCESS) {
qCWarning(interfaceapp) << "Eye Tracker: Error performing calibration:" << smiReturnValueToString(result);
} else {
result = smi_saveCalibration(HIGH_FIDELITY_EYE_TRACKER_CALIBRATION);
if (result != SMI_RET_SUCCESS) {
qCWarning(interfaceapp) << "Eye Tracker: Error saving calibration:" << smiReturnValueToString(result);
}
}
}
@ -226,6 +244,10 @@ QString EyeTracker::smiReturnValueToString(int value) {
return "Eye cameras not available";
case smi_ErrorReturnValue::SMI_ERROR_OCULUS_RUNTIME_NOT_SUPPORTED:
return "Oculus runtime not supported";
case smi_ErrorReturnValue::SMI_ERROR_FILE_NOT_FOUND:
return "File not found";
case smi_ErrorReturnValue::SMI_ERROR_FILE_EMPTY:
return "File empty";
case smi_ErrorReturnValue::SMI_ERROR_UNKNOWN:
return "Unknown error";
default: