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remove old/unused eyetracker code

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Seth Alves 2019-09-07 18:15:19 -07:00
parent a288c0a52d
commit 8875453585
4 changed files with 0 additions and 427 deletions
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38
cmake/modules/FindiViewHMD.cmake
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#
# FindiViewHMD.cmake
#
# Try to find the SMI iViewHMD eye tracker library
#
# You must provide a IVIEWHMD_ROOT_DIR which contains 3rdParty, include, and libs directories
#
# Once done this will define
#
# IVIEWHMD_FOUND - system found iViewHMD
# IVIEWHMD_INCLUDE_DIRS - the iViewHMD include directory
# IVIEWHMD_LIBRARIES - link this to use iViewHMD
#
# Created on 27 Jul 2015 by David Rowe
# Copyright 2015 High Fidelity, Inc.
#
if (WIN32)
include("${MACRO_DIR}/HifiLibrarySearchHints.cmake")
hifi_library_search_hints("iViewHMD")
find_path(IVIEWHMD_INCLUDE_DIRS iViewHMDAPI.h PATH_SUFFIXES include HINTS ${IVIEWHMD_SEARCH_DIRS})
find_library(IVIEWHMD_LIBRARIES NAMES iViewHMDAPI PATH_SUFFIXES libs/x86 HINTS ${IVIEWHMD_SEARCH_DIRS})
find_path(IVIEWHMD_API_DLL_PATH iViewHMDAPI.dll PATH_SUFFIXES libs/x86 HINTS ${IVIEWHMD_SEARCH_DIRS})
list(APPEND IVIEWHMD_REQUIREMENTS IVIEWHMD_INCLUDE_DIRS IVIEWHMD_LIBRARIES IVIEWHMD_API_DLL_PATH)
find_path(IVIEWHMD_DLL_PATH_3RD_PARTY libiViewNG.dll PATH_SUFFIXES 3rdParty HINTS ${IVIEWHMD_SEARCH_DIRS})
list(APPEND IVIEWHMD_REQUIREMENTS IVIEWHMD_DLL_PATH_3RD_PARTY)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(IVIEWHMD DEFAULT_MSG ${IVIEWHMD_REQUIREMENTS})
add_paths_to_fixup_libs(${IVIEWHMD_API_DLL_PATH} ${IVIEWHMD_DLL_PATH_3RD_PARTY})
mark_as_advanced(IVIEWHMD_INCLUDE_DIRS IVIEWHMD_LIBRARIES IVIEWHMD_SEARCH_DIRS)
endif()

14
interface/external/iViewHMD/readme.txt vendored
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Instructions for adding SMI HMD Eye Tracking to Interface on Windows
David Rowe, 27 Jul 2015.
1. Download and install the SMI HMD Eye Tracking software from http://update.smivision.com/iViewNG-HMD.exe.
2. Copy the SDK folders (3rdParty, include, libs) from the SDK installation folder C:\Program Files (x86)\SMI\iViewNG-HMD\SDK
into the interface/externals/iViewHMD folder. This readme.txt should be there as well.
You may optionally choose to copy the SDK folders to a location outside the repository (so you can re-use with different
checkouts and different projects). If so, set the ENV variable "HIFI_LIB_DIR" to a directory containing a subfolder
"iViewHMD" that contains the folders mentioned above.
3. Clear your build directory, run cmake and build, and you should be all set.

307
libraries/trackers/src/trackers/EyeTracker.cpp
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//
// Created by David Rowe on 27 Jul 2015.
// Copyright 2015 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#include "EyeTracker.h"
#include <QFuture>
#include <QtConcurrent/QtConcurrentRun>
#include <SharedUtil.h>
#include "Logging.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>();
if (eyeTracker) { // Guard against a few callbacks that continue to be received after smi_quit().
eyeTracker->processData(data);
}
}
#endif
EyeTracker::~EyeTracker() {
#ifdef HAVE_IVIEWHMD
if (_isStreaming) {
int result = smi_quit();
if (result != SMI_RET_SUCCESS) {
qCWarning(interfaceapp) << "Eye Tracker: Error terminating tracking:" << smiReturnValueToString(result);
}
}
#endif
}
#ifdef HAVE_IVIEWHMD
void EyeTracker::processData(smi_CallbackDataStruct* data) {
_lastProcessDataTimestamp = usecTimestampNow();
if (!_isEnabled) {
return;
}
if (data->type == SMI_SIMPLE_GAZE_SAMPLE) {
// Calculate the intersections of the left and right eye look-at vectors with a vertical plane along the monocular
// gaze direction. Average these positions to give the look-at point.
// If the eyes are parallel or diverged, gaze at a distant look-at point calculated the same as for non eye tracking.
// Line-plane intersection: https://en.wikipedia.org/wiki/Line%E2%80%93plane_intersection
smi_SampleHMDStruct* sample = (smi_SampleHMDStruct*)data->result;
// The iViewHMD coordinate system has x and z axes reversed compared to Interface, i.e., wearing the HMD:
// - x is left
// - y is up
// - z is forwards
// Plane
smi_Vec3d point = sample->gazeBasePoint; // mm
smi_Vec3d direction = sample->gazeDirection;
glm::vec3 planePoint = glm::vec3(-point.x, point.y, -point.z) / 1000.0f;
glm::vec3 planeNormal = glm::vec3(-direction.z, 0.0f, direction.x);
glm::vec3 monocularDirection = glm::vec3(-direction.x, direction.y, -direction.z);
// Left eye
point = sample->left.gazeBasePoint; // mm
direction = sample->left.gazeDirection;
glm::vec3 leftLinePoint = glm::vec3(-point.x, point.y, -point.z) / 1000.0f;
glm::vec3 leftLineDirection = glm::vec3(-direction.x, direction.y, -direction.z);
// Right eye
point = sample->right.gazeBasePoint; // mm
direction = sample->right.gazeDirection;
glm::vec3 rightLinePoint = glm::vec3(-point.x, point.y, -point.z) / 1000.0f;
glm::vec3 rightLineDirection = glm::vec3(-direction.x, direction.y, -direction.z);
// Plane - line dot products
float leftLinePlaneDotProduct = glm::dot(leftLineDirection, planeNormal);
float rightLinePlaneDotProduct = glm::dot(rightLineDirection, planeNormal);
// Gaze into distance if eyes are parallel or diverged; otherwise the look-at is the average of look-at points
glm::vec3 lookAtPosition;
if (abs(leftLinePlaneDotProduct) <= FLT_EPSILON || abs(rightLinePlaneDotProduct) <= FLT_EPSILON) {
lookAtPosition = monocularDirection * (float)TREE_SCALE;
} else {
float leftDistance = glm::dot(planePoint - leftLinePoint, planeNormal) / leftLinePlaneDotProduct;
float rightDistance = glm::dot(planePoint - rightLinePoint, planeNormal) / rightLinePlaneDotProduct;
if (leftDistance <= 0.0f || rightDistance <= 0.0f
|| leftDistance > (float)TREE_SCALE || rightDistance > (float)TREE_SCALE) {
lookAtPosition = monocularDirection * (float)TREE_SCALE;
} else {
glm::vec3 leftIntersectionPoint = leftLinePoint + leftDistance * leftLineDirection;
glm::vec3 rightIntersectionPoint = rightLinePoint + rightDistance * rightLineDirection;
lookAtPosition = (leftIntersectionPoint + rightIntersectionPoint) / 2.0f;
}
}
if (glm::isnan(lookAtPosition.x) || glm::isnan(lookAtPosition.y) || glm::isnan(lookAtPosition.z)) {
return;
}
_lookAtPosition = lookAtPosition;
}
}
#endif
void EyeTracker::init() {
if (_isInitialized) {
qCWarning(trackers) << "Eye Tracker: Already initialized";
return;
}
}
#ifdef HAVE_IVIEWHMD
int EyeTracker::startStreaming(bool simulate) {
return smi_startStreaming(simulate); // This call blocks execution.
}
#endif
#ifdef HAVE_IVIEWHMD
void EyeTracker::onStreamStarted() {
if (!_isInitialized) {
return;
}
int result = _startStreamingWatcher.result();
_isStreaming = (result == SMI_RET_SUCCESS);
if (result != SMI_RET_SUCCESS) {
qCWarning(interfaceapp) << "Eye Tracker: Error starting streaming:" << smiReturnValueToString(result);
// Display error dialog unless SMI SDK has already displayed an error message.
if (result != SMI_ERROR_HMD_NOT_SUPPORTED) {
OffscreenUi::asyncWarning(nullptr, "Eye Tracker Error", smiReturnValueToString(result));
}
} else {
qCDebug(interfaceapp) << "Eye Tracker: Started streaming";
}
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);
OffscreenUi::asyncWarning(nullptr, "Eye Tracker Error", "Error loading calibration"
+ smiReturnValueToString(result));
} else {
qCDebug(interfaceapp) << "Eye Tracker: Loaded calibration";
}
}
}
}
#endif
void EyeTracker::setEnabled(bool enabled, bool simulate) {
if (enabled && !_isInitialized) {
#ifdef HAVE_IVIEWHMD
int result = smi_setCallback(eyeTrackerCallback);
if (result != SMI_RET_SUCCESS) {
qCWarning(interfaceapp) << "Eye Tracker: Error setting callback:" << smiReturnValueToString(result);
OffscreenUi::asyncWarning(nullptr, "Eye Tracker Error", smiReturnValueToString(result));
} else {
_isInitialized = true;
}
connect(&_startStreamingWatcher, SIGNAL(finished()), this, SLOT(onStreamStarted()));
#endif
}
if (!_isInitialized) {
return;
}
#ifdef HAVE_IVIEWHMD
qCDebug(interfaceapp) << "Eye Tracker: Set enabled =" << enabled << ", simulate =" << simulate;
// There is no smi_stopStreaming() method and after an smi_quit(), streaming cannot be restarted (at least not for
// simulated data). So keep streaming once started in case tracking is re-enabled after stopping.
// Try to stop streaming if changing whether simulating or not.
if (enabled && _isStreaming && _isStreamSimulating != simulate) {
int result = smi_quit();
if (result != SMI_RET_SUCCESS) {
qCWarning(interfaceapp) << "Eye Tracker: Error stopping streaming:" << smiReturnValueToString(result);
}
_isStreaming = false;
}
if (enabled && !_isStreaming) {
// Start SMI streaming in a separate thread because it blocks.
QFuture<int> future = QtConcurrent::run(this, &EyeTracker::startStreaming, simulate);
_startStreamingWatcher.setFuture(future);
_isStreamSimulating = simulate;
}
_isEnabled = enabled;
_isSimulating = simulate;
#endif
}
void EyeTracker::reset() {
// Nothing to do.
}
bool EyeTracker::isTracking() const {
static const quint64 ACTIVE_TIMEOUT_USECS = 2000000; // 2 secs
return _isEnabled && (usecTimestampNow() - _lastProcessDataTimestamp < ACTIVE_TIMEOUT_USECS);
}
#ifdef HAVE_IVIEWHMD
void EyeTracker::calibrate(int points) {
if (!_isStreaming) {
qCWarning(interfaceapp) << "Eye Tracker: Cannot calibrate because not streaming";
return;
}
smi_CalibrationHMDStruct* calibrationHMDStruct;
smi_createCalibrationHMDStruct(&calibrationHMDStruct);
smi_CalibrationTypeEnum calibrationType;
switch (points) {
case 1:
calibrationType = SMI_ONE_POINT_CALIBRATION;
qCDebug(interfaceapp) << "Eye Tracker: One point calibration";
break;
case 3:
calibrationType = SMI_THREE_POINT_CALIBRATION;
qCDebug(interfaceapp) << "Eye Tracker: Three point calibration";
break;
case 5:
calibrationType = SMI_FIVE_POINT_CALIBRATION;
qCDebug(interfaceapp) << "Eye Tracker: Five point calibration";
break;
default:
qCWarning(interfaceapp) << "Eye Tracker: Invalid calibration specified";
return;
}
calibrationHMDStruct->type = calibrationType;
calibrationHMDStruct->backgroundColor->blue = 0.5;
calibrationHMDStruct->backgroundColor->green = 0.5;
calibrationHMDStruct->backgroundColor->red = 0.5;
calibrationHMDStruct->foregroundColor->blue = 1.0;
calibrationHMDStruct->foregroundColor->green = 1.0;
calibrationHMDStruct->foregroundColor->red = 1.0;
int result = smi_setupCalibration(calibrationHMDStruct);
if (result != SMI_RET_SUCCESS) {
qCWarning(interfaceapp) << "Eye Tracker: Error setting up calibration:" << smiReturnValueToString(result);
return;
} else {
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);
}
}
}
if (result != SMI_RET_SUCCESS) {
OffscreenUi::asyncWarning(nullptr, "Eye Tracker Error", "Calibration error: " + smiReturnValueToString(result));
}
}
#endif
#ifdef HAVE_IVIEWHMD
QString EyeTracker::smiReturnValueToString(int value) {
switch (value)
{
case smi_ErrorReturnValue::SMI_ERROR_NO_CALLBACK_SET:
return "No callback set";
case smi_ErrorReturnValue::SMI_ERROR_CONNECTING_TO_HMD:
return "Error connecting to HMD";
case smi_ErrorReturnValue::SMI_ERROR_HMD_NOT_SUPPORTED:
return "HMD not supported";
case smi_ErrorReturnValue::SMI_ERROR_NOT_IMPLEMENTED:
return "Not implmented";
case smi_ErrorReturnValue::SMI_ERROR_INVALID_PARAMETER:
return "Invalid parameter";
case smi_ErrorReturnValue::SMI_ERROR_EYECAMERAS_NOT_AVAILABLE:
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:
QString number;
number.setNum(value);
return number;
}
}
#endif

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libraries/trackers/src/trackers/EyeTracker.h
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//
// Created by David Rowe on 27 Jul 2015.
// Copyright 2015 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#ifndef hifi_EyeTracker_h
#define hifi_EyeTracker_h
#include <QObject>
#include <QFutureWatcher>
#include <glm/glm.hpp>
#include <DependencyManager.h>
#ifdef HAVE_IVIEWHMD
#include <iViewHMDAPI.h>
#endif
class EyeTracker : public QObject, public Dependency {
Q_OBJECT
SINGLETON_DEPENDENCY
public:
~EyeTracker();
void init();
void setEnabled(bool enabled, bool simulate);
void reset();
bool isInitialized() const { return _isInitialized; }
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.
#ifdef HAVE_IVIEWHMD
void processData(smi_CallbackDataStruct* data);
void calibrate(int points);
int startStreaming(bool simulate);
private slots:
void onStreamStarted();
#endif
private:
QString smiReturnValueToString(int value);
bool _isInitialized = false;
bool _isEnabled = false;
bool _isSimulating = false;
bool _isStreaming = false;
bool _isStreamSimulating = false;
quint64 _lastProcessDataTimestamp;
glm::vec3 _lookAtPosition;
QFutureWatcher<int> _startStreamingWatcher;
};
#endif // hifi_EyeTracker_h