コード例 #1
0
ファイル: eye.py プロジェクト: toshikurauchi/pupil
 def draw(self, ui_scale=1):
     cygl_draw_polyline(self.rect,
                        color=cygl_rgba(.8, .8, .8, 0.9),
                        thickness=2,
                        line_type=GL_LINE_LOOP)
     if self.active_edit_pt:
         inactive_pts = self.rect[:self.active_pt_idx] + self.rect[
             self.active_pt_idx + 1:]
         active_pt = [self.rect[self.active_pt_idx]]
         cygl_draw_points(inactive_pts,
                          size=(self.handle_size + 10) * ui_scale,
                          color=self.handle_color_shadow,
                          sharpness=0.3)
         cygl_draw_points(inactive_pts,
                          size=self.handle_size * ui_scale,
                          color=self.handle_color,
                          sharpness=0.9)
         cygl_draw_points(active_pt,
                          size=(self.handle_size + 30) * ui_scale,
                          color=self.handle_color_shadow,
                          sharpness=0.3)
         cygl_draw_points(active_pt,
                          size=(self.handle_size + 10) * ui_scale,
                          color=self.handle_color_selected,
                          sharpness=0.9)
     else:
         cygl_draw_points(self.rect,
                          size=(self.handle_size + 10) * ui_scale,
                          color=self.handle_color_shadow,
                          sharpness=0.3)
         cygl_draw_points(self.rect,
                          size=self.handle_size * ui_scale,
                          color=self.handle_color,
                          sharpness=0.9)
コード例 #2
0
 def draw(self, ui_scale=1):
     cygl_draw_polyline(
         self.rect,
         color=cygl_rgba(0.8, 0.8, 0.8, 0.9),
         thickness=1,
         line_type=GL_LINE_LOOP,
     )
コード例 #3
0
ファイル: ui_roi.py プロジェクト: pupil-labs/pupil
 def draw(self, ui_scale=1):
     cygl_draw_polyline(
         self.rect,
         color=cygl_rgba(0.8, 0.8, 0.8, 0.9),
         thickness=1,
         line_type=GL_LINE_LOOP,
     )
コード例 #4
0
ファイル: ui_roi.py プロジェクト: AlienorV/pupil
 def draw(self,ui_scale=1):
     cygl_draw_polyline(self.rect,color=cygl_rgba(.8,.8,.8,0.9),thickness=2,line_type=GL_LINE_LOOP)
     if self.active_edit_pt:
         inactive_pts = self.rect[:self.active_pt_idx]+self.rect[self.active_pt_idx+1:]
         active_pt = [self.rect[self.active_pt_idx]]
         cygl_draw_points(inactive_pts,size=(self.handle_size+10)*ui_scale,color=self.handle_color_shadow,sharpness=0.3)
         cygl_draw_points(inactive_pts,size=self.handle_size*ui_scale,color=self.handle_color,sharpness=0.9)
         cygl_draw_points(active_pt,size=(self.handle_size+30)*ui_scale,color=self.handle_color_shadow,sharpness=0.3)
         cygl_draw_points(active_pt,size=(self.handle_size+10)*ui_scale,color=self.handle_color_selected,sharpness=0.9)
     else:
         cygl_draw_points(self.rect,size=(self.handle_size+10)*ui_scale,color=self.handle_color_shadow,sharpness=0.3)
         cygl_draw_points(self.rect,size=self.handle_size*ui_scale,color=self.handle_color,sharpness=0.9)
コード例 #5
0
ファイル: roi.py プロジェクト: yb525533341/pupil
    def gl_display(self) -> None:
        if not self.has_frame or self.model.is_invalid():
            return

        cygl_draw_polyline(
            self._all_points.values(),
            color=self.outline_color,
            thickness=1,
            line_type=GL_LINE_LOOP,
        )

        # only display rest of the UI when we're in ROI mode
        if self.g_pool.display_mode != "roi":
            return

        ui_scale = self.g_pool.gui.scale

        # draw inactive
        cygl_draw_points(
            self._inactive_points,
            size=ui_scale * self.handle_size_shadow,
            color=self.handle_color_shadow,
            sharpness=0.3,
        )
        cygl_draw_points(
            self._inactive_points,
            size=ui_scale * self.handle_size,
            color=self.handle_color,
            sharpness=0.9,
        )

        # draw active
        if self._active_points:
            cygl_draw_points(
                self._active_points,
                size=ui_scale * self.handle_size_shadow_active,
                color=self.handle_color_shadow,
                sharpness=0.3,
            )
            cygl_draw_points(
                self._active_points,
                size=ui_scale * self.handle_size_active,
                color=self.handle_color_active,
                sharpness=0.9,
            )
コード例 #6
0
    def gl_display(self):
        """
        use gl calls to render
        at least:
            the published position of the reference
        better:
            show the detected postion even if not published
        """

        # debug mode within world will show green ellipses around detected ellipses
        if self.active and self.detected:
            for e in self.candidate_ellipses:
                pts = cv2.ellipse2Poly( (int(e[0][0]),int(e[0][1])),
                                    (int(e[1][0]/2),int(e[1][1]/2)),
                                    int(e[-1]),0,360,15)
                cygl_draw_polyline(pts,1,cygl_rgba(0.,1.,0.,1.))

        else:
            pass
        if self._window:
            self.gl_display_in_window()
コード例 #7
0
    def gl_display(self):
        """
        use gl calls to render
        at least:
            the published position of the reference
        better:
            show the detected postion even if not published
        """

        # debug mode within world will show green ellipses around detected ellipses
        if self.active and self.detected:
            for e in self.candidate_ellipses:
                pts = cv2.ellipse2Poly((int(e[0][0]), int(e[0][1])),
                                       (int(e[1][0] / 2), int(e[1][1] / 2)),
                                       int(e[-1]), 0, 360, 15)
                cygl_draw_polyline(pts, 1, cygl_rgba(0., 1., 0., 1.))

        else:
            pass
        if self._window:
            self.gl_display_in_window()
コード例 #8
0
ファイル: eye.py プロジェクト: Mazzafish/pupil
def eye(g_pool,cap_src,cap_size,rx_from_world,eye_id=0):
    """
    Creates a window, gl context.
    Grabs images from a capture.
    Streams Pupil coordinates into g_pool.pupil_queue
    """

    # modify the root logger for this process
    logger = logging.getLogger()
    # remove inherited handlers
    logger.handlers = []
    # create file handler which logs even debug messages
    fh = logging.FileHandler(os.path.join(g_pool.user_dir,'eye%s.log'%eye_id),mode='w')
    # fh.setLevel(logging.DEBUG)
    # create console handler with a higher log level
    ch = logging.StreamHandler()
    ch.setLevel(logger.level+10)
    # create formatter and add it to the handlers
    formatter = logging.Formatter('Eye'+str(eye_id)+' Process: %(asctime)s - %(name)s - %(levelname)s - %(message)s')
    fh.setFormatter(formatter)
    formatter = logging.Formatter('EYE'+str(eye_id)+' Process [%(levelname)s] %(name)s : %(message)s')
    ch.setFormatter(formatter)
    # add the handlers to the logger
    logger.addHandler(fh)
    logger.addHandler(ch)
    # create logger for the context of this function
    logger = logging.getLogger(__name__)


    #UI Platform tweaks
    if platform.system() == 'Linux':
        scroll_factor = 10.0
        window_position_default = (600,300*eye_id)
    elif platform.system() == 'Windows':
        scroll_factor = 1.0
        window_position_default = (600,31+300*eye_id)
    else:
        scroll_factor = 1.0
        window_position_default = (600,300*eye_id)


    # Callback functions
    def on_resize(window,w, h):
        active_window = glfwGetCurrentContext()
        glfwMakeContextCurrent(window)
        hdpi_factor = glfwGetFramebufferSize(window)[0]/glfwGetWindowSize(window)[0]
        w,h = w*hdpi_factor, h*hdpi_factor
        g_pool.gui.update_window(w,h)
        graph.adjust_size(w,h)
        adjust_gl_view(w,h)
        # for p in g_pool.plugins:
            # p.on_window_resize(window,w,h)
        glfwMakeContextCurrent(active_window)

    def on_key(window, key, scancode, action, mods):
        g_pool.gui.update_key(key,scancode,action,mods)


    def on_char(window,char):
        g_pool.gui.update_char(char)


    def on_button(window,button, action, mods):
        if g_pool.display_mode == 'roi':
            if action == GLFW_RELEASE and u_r.active_edit_pt:
                u_r.active_edit_pt = False
                return # if the roi interacts we dont what the gui to interact as well
            elif action == GLFW_PRESS:
                pos = glfwGetCursorPos(window)
                pos = normalize(pos,glfwGetWindowSize(main_window))
                if g_pool.flip:
                    pos = 1-pos[0],1-pos[1]
                pos = denormalize(pos,(frame.width,frame.height)) # Position in img pixels
                if u_r.mouse_over_edit_pt(pos,u_r.handle_size+40,u_r.handle_size+40):
                    return # if the roi interacts we dont what the gui to interact as well

        g_pool.gui.update_button(button,action,mods)



    def on_pos(window,x, y):
        hdpi_factor = float(glfwGetFramebufferSize(window)[0]/glfwGetWindowSize(window)[0])
        g_pool.gui.update_mouse(x*hdpi_factor,y*hdpi_factor)

        if u_r.active_edit_pt:
            pos = normalize((x,y),glfwGetWindowSize(main_window))
            if g_pool.flip:
                pos = 1-pos[0],1-pos[1]
            pos = denormalize(pos,(frame.width,frame.height) )
            u_r.move_vertex(u_r.active_pt_idx,pos)

    def on_scroll(window,x,y):
        g_pool.gui.update_scroll(x,y*scroll_factor)

    def on_close(window):
        g_pool.quit.value = True
        logger.info('Process closing from window')


    # load session persistent settings
    session_settings = Persistent_Dict(os.path.join(g_pool.user_dir,'user_settings_eye%s'%eye_id))
    if session_settings.get("version",VersionFormat('0.0')) < g_pool.version:
        logger.info("Session setting are from older version of this app. I will not use those.")
        session_settings.clear()
    # Initialize capture
    cap = autoCreateCapture(cap_src, timebase=g_pool.timebase)
    cap.frame_size = cap_size
    cap.frame_rate = 90 #default
    cap.settings = session_settings.get('capture_settings',{})


    # Test capture
    try:
        frame = cap.get_frame()
    except CameraCaptureError:
        logger.error("Could not retrieve image from capture")
        cap.close()
        return

    g_pool.capture = cap
    g_pool.flip = session_settings.get('flip',False)
    # any object we attach to the g_pool object *from now on* will only be visible to this process!
    # vars should be declared here to make them visible to the code reader.
    g_pool.window_size = session_settings.get('window_size',1.)
    g_pool.display_mode = session_settings.get('display_mode','camera_image')
    g_pool.display_mode_info_text = {'camera_image': "Raw eye camera image. This uses the least amount of CPU power",
                                'roi': "Click and drag on the blue circles to adjust the region of interest. The region should be a small as possible but big enough to capture to pupil in its movements",
                                'algorithm': "Algorithm display mode overlays a visualization of the pupil detection parameters on top of the eye video. Adjust parameters with in the Pupil Detection menu below."}
    # g_pool.draw_pupil = session_settings.get('draw_pupil',True)

    u_r = UIRoi(frame.img.shape)
    u_r.set(session_settings.get('roi',u_r.get()))

    writer = None

    pupil_detector = Canny_Detector(g_pool)


    # UI callback functions
    def set_scale(new_scale):
        g_pool.gui.scale = new_scale
        g_pool.gui.collect_menus()


    def set_display_mode_info(val):
        g_pool.display_mode = val
        g_pool.display_mode_info.text = g_pool.display_mode_info_text[val]


    window_pos = session_settings.get('window_position',window_position_default)
    width,height = session_settings.get('window_size',(frame.width, frame.height))

    # Initialize glfw
    glfwInit()
    if g_pool.binocular:
        title = "Binocular eye %s"%eye_id
    else:
        title = 'Eye'
    main_window = glfwCreateWindow(width,height, title, None, None)

    glfwMakeContextCurrent(main_window)
    cygl_init()

    # Register callbacks main_window
    glfwSetWindowSizeCallback(main_window,on_resize)
    glfwSetWindowCloseCallback(main_window,on_close)
    glfwSetKeyCallback(main_window,on_key)
    glfwSetCharCallback(main_window,on_char)
    glfwSetMouseButtonCallback(main_window,on_button)
    glfwSetCursorPosCallback(main_window,on_pos)
    glfwSetScrollCallback(main_window,on_scroll)

    # gl_state settings
    basic_gl_setup()
    g_pool.image_tex = create_named_texture(frame.img.shape)
    update_named_texture(g_pool.image_tex,frame.img)

    # refresh speed settings
    glfwSwapInterval(0)
    glfwSetWindowPos(main_window,window_pos[0],window_pos[1])


    #setup GUI
    g_pool.gui = ui.UI()
    g_pool.gui.scale = session_settings.get('gui_scale',1)
    g_pool.sidebar = ui.Scrolling_Menu("Settings",pos=(-300,0),size=(0,0),header_pos='left')
    general_settings = ui.Growing_Menu('General')
    general_settings.append(ui.Slider('scale',g_pool.gui, setter=set_scale,step = .05,min=1.,max=2.5,label='Interface Size'))
    general_settings.append(ui.Button('Reset window size',lambda: glfwSetWindowSize(main_window,frame.width,frame.height)) )
    general_settings.append(ui.Selector('display_mode',g_pool,setter=set_display_mode_info,selection=['camera_image','roi','algorithm'], labels=['Camera Image', 'ROI', 'Algorithm'], label="Mode") )
    general_settings.append(ui.Switch('flip',g_pool,label='Flip image display'))
    g_pool.display_mode_info = ui.Info_Text(g_pool.display_mode_info_text[g_pool.display_mode])
    general_settings.append(g_pool.display_mode_info)
    g_pool.sidebar.append(general_settings)

    g_pool.gui.append(g_pool.sidebar)
    g_pool.gui.append(ui.Hot_Key("quit",setter=on_close,getter=lambda:True,label="X",hotkey=GLFW_KEY_ESCAPE))


    # let the camera add its GUI
    g_pool.capture.init_gui(g_pool.sidebar)

    # let detector add its GUI
    pupil_detector.init_gui(g_pool.sidebar)

    # load last gui configuration
    g_pool.gui.configuration = session_settings.get('ui_config',{})


    #set the last saved window size
    on_resize(main_window, *glfwGetWindowSize(main_window))

    #set up performance graphs
    pid = os.getpid()
    ps = psutil.Process(pid)
    ts = frame.timestamp

    cpu_graph = graph.Bar_Graph()
    cpu_graph.pos = (20,130)
    cpu_graph.update_fn = ps.cpu_percent
    cpu_graph.update_rate = 5
    cpu_graph.label = 'CPU %0.1f'

    fps_graph = graph.Bar_Graph()
    fps_graph.pos = (140,130)
    fps_graph.update_rate = 5
    fps_graph.label = "%0.0f FPS"

    # Event loop
    while not g_pool.quit.value:
        # Get an image from the grabber
        try:
            frame = cap.get_frame()
        except CameraCaptureError:
            logger.error("Capture from Camera Failed. Stopping.")
            break
        except EndofVideoFileError:
            logger.warning("Video File is done. Stopping")
            break


        #update performace graphs
        t = frame.timestamp
        dt,ts = t-ts,t
        try:
            fps_graph.add(1./dt)
        except ZeroDivisionError:
            pass
        cpu_graph.update()


        ###  RECORDING of Eye Video (on demand) ###
        # Setup variables and lists for recording
        if rx_from_world.poll():
            command,raw_mode = rx_from_world.recv()
            if command is not None:
                record_path = command
                logger.info("Will save eye video to: %s"%record_path)
                video_path = os.path.join(record_path, "eye%s.mkv"%eye_id)
                timestamps_path = os.path.join(record_path, "eye%s_timestamps.npy"%eye_id)
                if raw_mode:
                    writer = JPEG_Dumper(video_path)
                else:
                    writer = CV_Writer(video_path,float(cap.frame_rate), cap.frame_size)
                timestamps = []
            else:
                logger.info("Done recording.")
                writer.release()
                writer = None
                np.save(timestamps_path,np.asarray(timestamps))
                del timestamps

        if writer:
            writer.write_video_frame(frame)
            timestamps.append(frame.timestamp)


        # pupil ellipse detection
        result = pupil_detector.detect(frame,user_roi=u_r,visualize=g_pool.display_mode == 'algorithm')
        result['id'] = eye_id
        # stream the result
        g_pool.pupil_queue.put(result)


        # GL drawing
        glfwMakeContextCurrent(main_window)
        clear_gl_screen()

        # switch to work in normalized coordinate space
        if g_pool.display_mode == 'algorithm':
            update_named_texture(g_pool.image_tex,frame.img)
        elif g_pool.display_mode in ('camera_image','roi'):
            update_named_texture(g_pool.image_tex,frame.gray)
        else:
            pass

        make_coord_system_norm_based(g_pool.flip)
        draw_named_texture(g_pool.image_tex)
        # switch to work in pixel space
        make_coord_system_pixel_based((frame.height,frame.width,3),g_pool.flip)

        if result['confidence'] >0:
            if result.has_key('axes'):
                pts = cv2.ellipse2Poly( (int(result['center'][0]),int(result['center'][1])),
                                        (int(result['axes'][0]/2),int(result['axes'][1]/2)),
                                        int(result['angle']),0,360,15)
                cygl_draw_polyline(pts,1,cygl_rgba(1.,0,0,.5))
            cygl_draw_points([result['center']],size=20,color=cygl_rgba(1.,0.,0.,.5),sharpness=1.)

        # render graphs
        graph.push_view()
        fps_graph.draw()
        cpu_graph.draw()
        graph.pop_view()

        # render GUI
        g_pool.gui.update()

        #render the ROI
        if g_pool.display_mode == 'roi':
            u_r.draw(g_pool.gui.scale)

        #update screen
        glfwSwapBuffers(main_window)
        glfwPollEvents()


    # END while running

    # in case eye recording was still runnnig: Save&close
    if writer:
        logger.info("Done recording eye.")
        writer = None
        np.save(timestamps_path,np.asarray(timestamps))


    # save session persistent settings
    session_settings['gui_scale'] = g_pool.gui.scale
    session_settings['roi'] = u_r.get()
    session_settings['flip'] = g_pool.flip
    session_settings['display_mode'] = g_pool.display_mode
    session_settings['ui_config'] = g_pool.gui.configuration
    session_settings['capture_settings'] = g_pool.capture.settings
    session_settings['window_size'] = glfwGetWindowSize(main_window)
    session_settings['window_position'] = glfwGetWindowPos(main_window)
    session_settings['version'] = g_pool.version
    session_settings.close()

    pupil_detector.cleanup()
    glfwDestroyWindow(main_window)
    glfwTerminate()
    cap.close()

    #flushing queue in case world process did not exit gracefully
    while not g_pool.pupil_queue.empty():
        g_pool.pupil_queue.get()
    g_pool.pupil_queue.close()

    logger.debug("Process done")
コード例 #9
0
ファイル: eye.py プロジェクト: toshikurauchi/pupil
def eye(g_pool, cap_src, cap_size, pipe_to_world, eye_id=0):
    """
    Creates a window, gl context.
    Grabs images from a capture.
    Streams Pupil coordinates into g_pool.pupil_queue
    """

    # modify the root logger for this process
    logger = logging.getLogger()
    # remove inherited handlers
    logger.handlers = []
    # create file handler which logs even debug messages
    fh = logging.FileHandler(os.path.join(g_pool.user_dir,
                                          'eye%s.log' % eye_id),
                             mode='w')
    # fh.setLevel(logging.DEBUG)
    # create console handler with a higher log level
    ch = logging.StreamHandler()
    ch.setLevel(logger.level + 10)
    # create formatter and add it to the handlers
    formatter = logging.Formatter(
        'Eye' + str(eye_id) +
        ' Process: %(asctime)s - %(name)s - %(levelname)s - %(message)s')
    fh.setFormatter(formatter)
    formatter = logging.Formatter(
        'EYE' + str(eye_id) +
        ' Process [%(levelname)s] %(name)s : %(message)s')
    ch.setFormatter(formatter)
    # add the handlers to the logger
    logger.addHandler(fh)
    logger.addHandler(ch)
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    #UI Platform tweaks
    if platform.system() == 'Linux':
        scroll_factor = 10.0
        window_position_default = (600, 300 * eye_id)
    elif platform.system() == 'Windows':
        scroll_factor = 1.0
        window_position_default = (600, 31 + 300 * eye_id)
    else:
        scroll_factor = 1.0
        window_position_default = (600, 300 * eye_id)

    # Callback functions
    def on_resize(window, w, h):
        if not g_pool.iconified:
            active_window = glfwGetCurrentContext()
            glfwMakeContextCurrent(window)
            g_pool.gui.update_window(w, h)
            graph.adjust_size(w, h)
            adjust_gl_view(w, h)
            glfwMakeContextCurrent(active_window)

    def on_key(window, key, scancode, action, mods):
        g_pool.gui.update_key(key, scancode, action, mods)

    def on_char(window, char):
        g_pool.gui.update_char(char)

    def on_iconify(window, iconified):
        g_pool.iconified = iconified

    def on_button(window, button, action, mods):
        if g_pool.display_mode == 'roi':
            if action == GLFW_RELEASE and u_r.active_edit_pt:
                u_r.active_edit_pt = False
                return  # if the roi interacts we dont what the gui to interact as well
            elif action == GLFW_PRESS:
                pos = glfwGetCursorPos(window)
                pos = normalize(pos, glfwGetWindowSize(main_window))
                if g_pool.flip:
                    pos = 1 - pos[0], 1 - pos[1]
                pos = denormalize(
                    pos, (frame.width, frame.height))  # Position in img pixels
                if u_r.mouse_over_edit_pt(pos, u_r.handle_size + 40,
                                          u_r.handle_size + 40):
                    return  # if the roi interacts we dont what the gui to interact as well

        g_pool.gui.update_button(button, action, mods)

    def on_pos(window, x, y):
        hdpi_factor = float(
            glfwGetFramebufferSize(window)[0] / glfwGetWindowSize(window)[0])
        g_pool.gui.update_mouse(x * hdpi_factor, y * hdpi_factor)

        if u_r.active_edit_pt:
            pos = normalize((x, y), glfwGetWindowSize(main_window))
            if g_pool.flip:
                pos = 1 - pos[0], 1 - pos[1]
            pos = denormalize(pos, (frame.width, frame.height))
            u_r.move_vertex(u_r.active_pt_idx, pos)

    def on_scroll(window, x, y):
        g_pool.gui.update_scroll(x, y * scroll_factor)

    def on_close(window):
        g_pool.quit.value = True
        logger.info('Process closing from window')

    # load session persistent settings
    session_settings = Persistent_Dict(
        os.path.join(g_pool.user_dir, 'user_settings_eye%s' % eye_id))
    if session_settings.get("version", VersionFormat('0.0')) < g_pool.version:
        logger.info(
            "Session setting are from older version of this app. I will not use those."
        )
        session_settings.clear()
    # Initialize capture
    cap = autoCreateCapture(cap_src, timebase=g_pool.timebase)
    default_settings = {'frame_size': cap_size, 'frame_rate': 30}
    previous_settings = session_settings.get('capture_settings', None)
    if previous_settings and previous_settings['name'] == cap.name:
        cap.settings = previous_settings
    else:
        cap.settings = default_settings

    # Test capture
    try:
        frame = cap.get_frame()
    except CameraCaptureError:
        logger.error("Could not retrieve image from capture")
        cap.close()
        return

    #signal world that we are ready to go
    pipe_to_world.send('eye%s process ready' % eye_id)

    # any object we attach to the g_pool object *from now on* will only be visible to this process!
    # vars should be declared here to make them visible to the code reader.
    g_pool.iconified = False
    g_pool.capture = cap
    g_pool.flip = session_settings.get('flip', False)
    g_pool.display_mode = session_settings.get('display_mode', 'camera_image')
    g_pool.display_mode_info_text = {
        'camera_image':
        "Raw eye camera image. This uses the least amount of CPU power",
        'roi':
        "Click and drag on the blue circles to adjust the region of interest. The region should be a small as possible but big enough to capture to pupil in its movements",
        'algorithm':
        "Algorithm display mode overlays a visualization of the pupil detection parameters on top of the eye video. Adjust parameters with in the Pupil Detection menu below."
    }
    # g_pool.draw_pupil = session_settings.get('draw_pupil',True)

    u_r = UIRoi(frame.img.shape)
    u_r.set(session_settings.get('roi', u_r.get()))

    writer = None

    pupil_detector = Canny_Detector(g_pool)

    # UI callback functions
    def set_scale(new_scale):
        g_pool.gui.scale = new_scale
        g_pool.gui.collect_menus()

    def set_display_mode_info(val):
        g_pool.display_mode = val
        g_pool.display_mode_info.text = g_pool.display_mode_info_text[val]

    # Initialize glfw
    glfwInit()
    if g_pool.binocular:
        title = "Binocular eye %s" % eye_id
    else:
        title = 'Eye'
    width, height = session_settings.get('window_size',
                                         (frame.width, frame.height))
    main_window = glfwCreateWindow(width, height, title, None, None)
    window_pos = session_settings.get('window_position',
                                      window_position_default)
    glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
    glfwMakeContextCurrent(main_window)
    cygl_init()

    # gl_state settings
    basic_gl_setup()
    g_pool.image_tex = Named_Texture()
    g_pool.image_tex.update_from_frame(frame)
    glfwSwapInterval(0)

    #setup GUI
    g_pool.gui = ui.UI()
    g_pool.gui.scale = session_settings.get('gui_scale', 1)
    g_pool.sidebar = ui.Scrolling_Menu("Settings",
                                       pos=(-300, 0),
                                       size=(0, 0),
                                       header_pos='left')
    general_settings = ui.Growing_Menu('General')
    general_settings.append(
        ui.Slider('scale',
                  g_pool.gui,
                  setter=set_scale,
                  step=.05,
                  min=1.,
                  max=2.5,
                  label='Interface Size'))
    general_settings.append(
        ui.Button(
            'Reset window size',
            lambda: glfwSetWindowSize(main_window, frame.width, frame.height)))
    general_settings.append(
        ui.Selector('display_mode',
                    g_pool,
                    setter=set_display_mode_info,
                    selection=['camera_image', 'roi', 'algorithm'],
                    labels=['Camera Image', 'ROI', 'Algorithm'],
                    label="Mode"))
    general_settings.append(
        ui.Switch('flip', g_pool, label='Flip image display'))
    g_pool.display_mode_info = ui.Info_Text(
        g_pool.display_mode_info_text[g_pool.display_mode])
    general_settings.append(g_pool.display_mode_info)
    g_pool.sidebar.append(general_settings)
    g_pool.gui.append(g_pool.sidebar)
    # let the camera add its GUI
    g_pool.capture.init_gui(g_pool.sidebar)
    # let detector add its GUI
    pupil_detector.init_gui(g_pool.sidebar)

    # Register callbacks main_window
    glfwSetFramebufferSizeCallback(main_window, on_resize)
    glfwSetWindowCloseCallback(main_window, on_close)
    glfwSetWindowIconifyCallback(main_window, on_iconify)
    glfwSetKeyCallback(main_window, on_key)
    glfwSetCharCallback(main_window, on_char)
    glfwSetMouseButtonCallback(main_window, on_button)
    glfwSetCursorPosCallback(main_window, on_pos)
    glfwSetScrollCallback(main_window, on_scroll)

    #set the last saved window size
    on_resize(main_window, *glfwGetWindowSize(main_window))

    # load last gui configuration
    g_pool.gui.configuration = session_settings.get('ui_config', {})

    #set up performance graphs
    pid = os.getpid()
    ps = psutil.Process(pid)
    ts = frame.timestamp

    cpu_graph = graph.Bar_Graph()
    cpu_graph.pos = (20, 130)
    cpu_graph.update_fn = ps.cpu_percent
    cpu_graph.update_rate = 5
    cpu_graph.label = 'CPU %0.1f'

    fps_graph = graph.Bar_Graph()
    fps_graph.pos = (140, 130)
    fps_graph.update_rate = 5
    fps_graph.label = "%0.0f FPS"

    #create a timer to control window update frequency
    window_update_timer = timer(1 / 60.)

    def window_should_update():
        return next(window_update_timer)

    # Event loop
    while not g_pool.quit.value:
        # Get an image from the grabber
        try:
            frame = cap.get_frame()
        except CameraCaptureError:
            logger.error("Capture from Camera Failed. Stopping.")
            break
        except EndofVideoFileError:
            logger.warning("Video File is done. Stopping")
            break

        #update performace graphs
        t = frame.timestamp
        dt, ts = t - ts, t
        try:
            fps_graph.add(1. / dt)
        except ZeroDivisionError:
            pass
        cpu_graph.update()

        ###  RECORDING of Eye Video (on demand) ###
        # Setup variables and lists for recording
        if pipe_to_world.poll():
            command, raw_mode = pipe_to_world.recv()
            if command is not None:
                record_path = command
                logger.info("Will save eye video to: %s" % record_path)
                timestamps_path = os.path.join(record_path,
                                               "eye%s_timestamps.npy" % eye_id)
                if raw_mode and frame.jpeg_buffer:
                    video_path = os.path.join(record_path,
                                              "eye%s.mp4" % eye_id)
                    writer = JPEG_Writer(video_path, cap.frame_rate)
                else:
                    video_path = os.path.join(record_path,
                                              "eye%s.mp4" % eye_id)
                    writer = AV_Writer(video_path, cap.frame_rate)
                timestamps = []
            else:
                logger.info("Done recording.")
                writer.release()
                writer = None
                np.save(timestamps_path, np.asarray(timestamps))
                del timestamps

        if writer:
            writer.write_video_frame(frame)
            timestamps.append(frame.timestamp)

        # pupil ellipse detection
        result = pupil_detector.detect(
            frame, user_roi=u_r, visualize=g_pool.display_mode == 'algorithm')
        result['id'] = eye_id
        # stream the result
        g_pool.pupil_queue.put(result)

        # GL drawing
        if window_should_update():
            if not g_pool.iconified:
                glfwMakeContextCurrent(main_window)
                clear_gl_screen()

                # switch to work in normalized coordinate space
                if g_pool.display_mode == 'algorithm':
                    g_pool.image_tex.update_from_ndarray(frame.img)
                elif g_pool.display_mode in ('camera_image', 'roi'):
                    g_pool.image_tex.update_from_ndarray(frame.gray)
                else:
                    pass

                make_coord_system_norm_based(g_pool.flip)
                g_pool.image_tex.draw()
                # switch to work in pixel space
                make_coord_system_pixel_based((frame.height, frame.width, 3),
                                              g_pool.flip)

                if result['confidence'] > 0:
                    if result.has_key('axes'):
                        pts = cv2.ellipse2Poly((int(
                            result['center'][0]), int(result['center'][1])),
                                               (int(result['axes'][0] / 2),
                                                int(result['axes'][1] / 2)),
                                               int(result['angle']), 0, 360,
                                               15)
                        cygl_draw_polyline(pts, 1, cygl_rgba(1., 0, 0, .5))
                    cygl_draw_points([result['center']],
                                     size=20,
                                     color=cygl_rgba(1., 0., 0., .5),
                                     sharpness=1.)

                # render graphs
                graph.push_view()
                fps_graph.draw()
                cpu_graph.draw()
                graph.pop_view()

                # render GUI
                g_pool.gui.update()

                #render the ROI
                if g_pool.display_mode == 'roi':
                    u_r.draw(g_pool.gui.scale)

                #update screen
                glfwSwapBuffers(main_window)
            glfwPollEvents()

    # END while running

    # in case eye recording was still runnnig: Save&close
    if writer:
        logger.info("Done recording eye.")
        writer = None
        np.save(timestamps_path, np.asarray(timestamps))

    glfwRestoreWindow(main_window)  #need to do this for windows os
    # save session persistent settings
    session_settings['gui_scale'] = g_pool.gui.scale
    session_settings['roi'] = u_r.get()
    session_settings['flip'] = g_pool.flip
    session_settings['display_mode'] = g_pool.display_mode
    session_settings['ui_config'] = g_pool.gui.configuration
    session_settings['capture_settings'] = g_pool.capture.settings
    session_settings['window_size'] = glfwGetWindowSize(main_window)
    session_settings['window_position'] = glfwGetWindowPos(main_window)
    session_settings['version'] = g_pool.version
    session_settings.close()

    pupil_detector.cleanup()
    g_pool.gui.terminate()
    glfwDestroyWindow(main_window)
    glfwTerminate()
    cap.close()

    #flushing queue in case world process did not exit gracefully
    while not g_pool.pupil_queue.empty():
        g_pool.pupil_queue.get()
    g_pool.pupil_queue.close()

    logger.debug("Process done")