tobii_research_streams.h

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#ifndef TOBII_RESEARCH_STREAMS_H_
#define TOBII_RESEARCH_STREAMS_H_

#include "tobii_research.h"
#include "tobii_research_eyetracker.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
    TOBII_RESEARCH_VALIDITY_INVALID,

    TOBII_RESEARCH_VALIDITY_VALID
} TobiiResearchValidity;

typedef struct {
    TobiiResearchPoint3D position_in_user_coordinates;

    TobiiResearchNormalizedPoint3D position_in_track_box_coordinates;

    TobiiResearchValidity validity;
} TobiiResearchGazeOrigin;

typedef struct {
    float diameter;

    TobiiResearchValidity validity;
} TobiiResearchPupilData;

typedef struct {
    TobiiResearchNormalizedPoint2D position_on_display_area;

    TobiiResearchPoint3D position_in_user_coordinates;

    TobiiResearchValidity validity;
} TobiiResearchGazePoint;

typedef struct {
    TobiiResearchGazePoint gaze_point;

    TobiiResearchPupilData pupil_data;

    TobiiResearchGazeOrigin gaze_origin;
} TobiiResearchEyeData;

typedef struct {
    TobiiResearchEyeData left_eye;

    TobiiResearchEyeData right_eye;

    int64_t device_time_stamp;

    int64_t system_time_stamp;
} TobiiResearchGazeData;


typedef struct {
    TobiiResearchNormalizedPoint3D user_position;

    TobiiResearchValidity validity;
} TobiiResearchEyeUserPositionGuide;


typedef struct {
    TobiiResearchEyeUserPositionGuide left_eye;

    TobiiResearchEyeUserPositionGuide right_eye;
} TobiiResearchUserPositionGuide;


typedef struct {
    TobiiResearchNormalizedPoint2D position_in_tracking_area;

    TobiiResearchValidity validity;
} TobiiResearchHMDPupilPosition;

typedef struct {
    TobiiResearchPoint3D position_in_hmd_coordinates;

    TobiiResearchValidity validity;
} TobiiResearchHMDGazeOrigin;

typedef struct {
    TobiiResearchNormalizedPoint3D unit_vector;

    TobiiResearchValidity validity;
} TobiiResearchHMDGazeDirection;

typedef struct {
    TobiiResearchHMDGazeDirection gaze_direction;

    TobiiResearchPupilData pupil_data;

    TobiiResearchHMDGazeOrigin gaze_origin;

    TobiiResearchHMDPupilPosition pupil_position;
} TobiiResearchHMDEyeData;

typedef struct {
    TobiiResearchHMDEyeData left_eye;

    TobiiResearchHMDEyeData right_eye;

    int64_t device_time_stamp;

    int64_t system_time_stamp;
} TobiiResearchHMDGazeData;

typedef struct {
    int64_t system_request_time_stamp;

    int64_t device_time_stamp;

    int64_t system_response_time_stamp;
} TobiiResearchTimeSynchronizationData;

typedef enum {
    TOBII_RESEARCH_EXTERNAL_SIGNAL_VALUE_CHANGED,

    TOBII_RESEARCH_EXTERNAL_SIGNAL_INITIAL_VALUE,

    TOBII_RESEARCH_EXTERNAL_SIGNAL_CONNECTION_RESTORED
} TobiiResearchExternalSignalChangeType;

typedef struct {
    int64_t device_time_stamp;

    int64_t system_time_stamp;

    uint32_t value;

    TobiiResearchExternalSignalChangeType change_type;
} TobiiResearchExternalSignalData;

typedef enum {
    TOBII_RESEARCH_STREAM_ERROR_CONNECTION_LOST,

    TOBII_RESEARCH_STREAM_ERROR_INSUFFICIENT_LICENSE,

    TOBII_RESEARCH_STREAM_ERROR_NOT_SUPPORTED,

    TOBII_RESEARCH_STREAM_ERROR_TOO_MANY_SUBSCRIBERS,

    TOBII_RESEARCH_STREAM_ERROR_INTERNAL_ERROR,

    TOBII_RESEARCH_STREAM_ERROR_USER_ERROR
} TobiiResearchStreamError;

typedef enum {
    TOBII_RESEARCH_STREAM_ERROR_SOURCE_USER,

    TOBII_RESEARCH_STREAM_ERROR_SOURCE_STREAM_PUMP,

    TOBII_RESEARCH_STREAM_ERROR_SOURCE_SUBSCRIPTION_GAZE_DATA,

    TOBII_RESEARCH_STREAM_ERROR_SOURCE_SUBSCRIPTION_EXTERNAL_SIGNAL,

    TOBII_RESEARCH_STREAM_ERROR_SOURCE_SUBSCRIPTION_TIME_SYNCHRONIZATION_DATA,

    TOBII_RESEARCH_STREAM_ERROR_SOURCE_SUBSCRIPTION_EYE_IMAGE,

    TOBII_RESEARCH_STREAM_ERROR_SOURCE_SUBSCRIPTION_NOTIFICATION,

    TOBII_RESEARCH_STREAM_ERROR_SOURCE_SUBSCRIPTION_HMD_GAZE_DATA,

    TOBII_RESEARCH_STREAM_ERROR_SOURCE_SUBSCRIPTION_USER_POSITION_GUIDE
} TobiiResearchStreamErrorSource;

typedef enum {
    TOBII_RESEARCH_NOTIFICATION_CONNECTION_LOST,

    TOBII_RESEARCH_NOTIFICATION_CONNECTION_RESTORED,

    TOBII_RESEARCH_NOTIFICATION_CALIBRATION_MODE_ENTERED,

    TOBII_RESEARCH_NOTIFICATION_CALIBRATION_MODE_LEFT,

    TOBII_RESEARCH_NOTIFICATION_CALIBRATION_CHANGED,

    TOBII_RESEARCH_NOTIFICATION_TRACK_BOX_CHANGED,

    TOBII_RESEARCH_NOTIFICATION_DISPLAY_AREA_CHANGED,

    TOBII_RESEARCH_NOTIFICATION_GAZE_OUTPUT_FREQUENCY_CHANGED,

    TOBII_RESEARCH_NOTIFICATION_EYE_TRACKING_MODE_CHANGED,

    TOBII_RESEARCH_NOTIFICATION_DEVICE_FAULTS,

    TOBII_RESEARCH_NOTIFICATION_DEVICE_WARNINGS,

    TOBII_RESEARCH_NOTIFICATION_UNKNOWN
} TobiiResearchNotificationType;


typedef char TobiiResearchNotificationString[512];

typedef struct {
    int64_t system_time_stamp;
    TobiiResearchNotificationType notification_type;
    union {
        float output_frequency;

        TobiiResearchDisplayArea display_area;

        TobiiResearchNotificationString text;
    } value;
} TobiiResearchNotification;

typedef void(*tobii_research_gaze_data_callback)(TobiiResearchGazeData* gaze_data, void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_subscribe_to_gaze_data(
                        TobiiResearchEyeTracker* eyetracker,
                        tobii_research_gaze_data_callback callback, void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_unsubscribe_from_gaze_data(
                        TobiiResearchEyeTracker* eyetracker,
                        tobii_research_gaze_data_callback callback);


typedef void(*tobii_research_user_position_guide_callback)(TobiiResearchUserPositionGuide* user_position_guide,
    void* user_data);


TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_subscribe_to_user_position_guide(
                        TobiiResearchEyeTracker* eyetracker,
                        tobii_research_user_position_guide_callback callback, void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_unsubscribe_from_user_position_guide(
                        TobiiResearchEyeTracker* eyetracker,
                        tobii_research_user_position_guide_callback callback);

typedef void(*tobii_research_hmd_gaze_data_callback)(TobiiResearchHMDGazeData* hmd_gaze_data, void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_subscribe_to_hmd_gaze_data(
        TobiiResearchEyeTracker* eyetracker, tobii_research_hmd_gaze_data_callback callback, void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_unsubscribe_from_hmd_gaze_data(
        TobiiResearchEyeTracker* eyetracker, tobii_research_hmd_gaze_data_callback callback);

typedef void(*tobii_research_external_signal_data_callback)(TobiiResearchExternalSignalData* external_signal_data,
        void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_subscribe_to_external_signal_data(
        TobiiResearchEyeTracker* eyetracker,
        tobii_research_external_signal_data_callback callback, void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_unsubscribe_from_external_signal_data(
        TobiiResearchEyeTracker* eyetracker,
        tobii_research_external_signal_data_callback callback);

typedef void(*tobii_research_time_synchronization_data_callback)(
        TobiiResearchTimeSynchronizationData* time_synchronization_data,
        void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_subscribe_to_time_synchronization_data(
        TobiiResearchEyeTracker* eyetracker,
        tobii_research_time_synchronization_data_callback callback,
        void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_unsubscribe_from_time_synchronization_data(
        TobiiResearchEyeTracker* eyetracker,
        tobii_research_time_synchronization_data_callback callback);


typedef struct {
    int64_t system_time_stamp;
    TobiiResearchStreamError error;
    TobiiResearchStreamErrorSource source;
    const char* message;
} TobiiResearchStreamErrorData;

typedef void(*tobii_research_stream_error_callback)(
    TobiiResearchStreamErrorData* stream_error,
    void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_subscribe_to_stream_errors(
        TobiiResearchEyeTracker* eyetracker,
        tobii_research_stream_error_callback callback,
        void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_unsubscribe_from_stream_errors(
        TobiiResearchEyeTracker* eyetracker,
        tobii_research_stream_error_callback callback);

typedef void(*tobii_research_notification_callback)(
        TobiiResearchNotification* notification,
        void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_subscribe_to_notifications(
        TobiiResearchEyeTracker* eyetracker,
        tobii_research_notification_callback callback,
        void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_unsubscribe_from_notifications(
        TobiiResearchEyeTracker* eyetracker,
        tobii_research_notification_callback callback);

typedef enum {
    TOBII_RESEARCH_EYE_IMAGE_TYPE_FULL,
    TOBII_RESEARCH_EYE_IMAGE_TYPE_CROPPED,
    TOBII_RESEARCH_EYE_IMAGE_TYPE_UNKNOWN
} TobiiResearchEyeImageType;

typedef struct {
    int64_t device_time_stamp;
    int64_t system_time_stamp;
    int bits_per_pixel;
    int padding_per_pixel;
    int width;
    int height;
    TobiiResearchEyeImageType type;
    int camera_id;
    size_t data_size;
    void* data;
} TobiiResearchEyeImage;

typedef struct {
    int64_t device_time_stamp;
    int64_t system_time_stamp;
    TobiiResearchEyeImageType type;
    int camera_id;
    size_t image_size;
    void* image_data;
} TobiiResearchEyeImageGif;

typedef void(*tobii_research_eye_image_callback)(TobiiResearchEyeImage* frame, void* user_data);

typedef void(*tobii_research_eye_image_as_gif_callback)(TobiiResearchEyeImageGif* frame, void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_subscribe_to_eye_image(
        TobiiResearchEyeTracker* eyetracker,
        tobii_research_eye_image_callback callback,
        void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_subscribe_to_eye_image_as_gif(
        TobiiResearchEyeTracker* eyetracker,
        tobii_research_eye_image_as_gif_callback callback,
        void* user_data);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_unsubscribe_from_eye_image(
        TobiiResearchEyeTracker* eyetracker,
        tobii_research_eye_image_callback callback);

TOBII_RESEARCH_API TobiiResearchStatus TOBII_RESEARCH_CALL tobii_research_unsubscribe_from_eye_image_as_gif(
        TobiiResearchEyeTracker* eyetracker,
        tobii_research_eye_image_as_gif_callback callback);

#ifdef __cplusplus
}
#endif
#endif /* TOBII_RESEARCH_STREAMS_H_ */