diff options
Diffstat (limited to 'plugins/ufo')
| -rw-r--r-- | plugins/ufo/uca-ufo-camera.c | 63 |
1 files changed, 41 insertions, 22 deletions
diff --git a/plugins/ufo/uca-ufo-camera.c b/plugins/ufo/uca-ufo-camera.c index 273d3dd..4c278ef 100644 --- a/plugins/ufo/uca-ufo-camera.c +++ b/plugins/ufo/uca-ufo-camera.c @@ -400,6 +400,29 @@ uca_ufo_camera_trigger (UcaCamera *camera, GError **error) pcilib_trigger (priv->handle, PCILIB_EVENT0, 0, NULL); } +static gdouble +total_readout_time (UcaUfoCamera *camera) +{ + gdouble clock_period; + gdouble exposure_time; + gdouble foo; + guint output_mode; + guint roi_height; + + g_object_get (G_OBJECT (camera), + "exposure-time", &exposure_time, + "ufo-cmosis-output-mode", &output_mode, + "roi-height", &roi_height, + NULL); + + clock_period = camera->priv->frequency == FPGA_40MHZ ? 1 / 40000000.0 : 1 / 48000000.0; + foo = pow (2, output_mode); + image_readout_time = (129 * clock_period * foo) * roi_height; + overhead_time = (10 /* reg73 */ + 2 * foo) * 129 * clock_period; + + return exposure_time + overhead_time + image_readout_time; +} + static void uca_ufo_camera_set_property(GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) { @@ -414,6 +437,19 @@ uca_ufo_camera_set_property(GObject *object, guint property_id, const GValue *va pcilib_write_register(priv->handle, NULL, "cmosis_exp_time", reg_value); } break; + case PROP_FRAME_RATE: + { + gdouble readout_time; + gdouble frame_rate; + guint trigger_period; + + frame_rate = g_value_get_double (value); + readout_time = total_readout_time (UCA_UFO_CAMERA (object)); + trigger_period = (guint) (1. / ((frame_rate - 1. / readout_time) * 8 * 1e-9)); + + g_object_set (object, "ufo-trigger-period", &trigger_period, NULL); + } + break; case PROP_ROI_X: case PROP_ROI_Y: case PROP_ROI_WIDTH: @@ -443,7 +479,6 @@ uca_ufo_camera_set_property(GObject *object, guint property_id, const GValue *va } } - static void uca_ufo_camera_get_property(GObject *object, guint property_id, GValue *value, GParamSpec *pspec) { @@ -490,30 +525,14 @@ uca_ufo_camera_get_property(GObject *object, guint property_id, GValue *value, G break; case PROP_FRAMES_PER_SECOND: { - const gdouble clock_period = priv->frequency == FPGA_40MHZ ? 1 / 40.0 : 1 / 48.0; - gdouble exposure_time; - gdouble readout_time, image_readout_time; - gdouble overhead_time, delay_time; + gdouble delay_time; gdouble framerate; - gdouble foo; - guint output_mode; guint trigger_period; - guint roi_height; - - g_object_get (object, - "exposure-time", &exposure_time, - "ufo-cmosis-output-mode", &output_mode, - "roi-height", &roi_height, - "ufo-trigger-period", &trigger_period, - NULL); - - foo = pow(2, output_mode); - image_readout_time = (129 * clock_period * foo) * roi_height; - overhead_time = (10 /* reg73 */ + 2 * foo) * 129 * clock_period; - readout_time = exposure_time + overhead_time + image_readout_time; + + g_object_get (object, "ufo-trigger-period", &trigger_period, NULL); + delay_time = trigger_period * 8.0 * 1e-9; - framerate = 1.0 / (readout_time + delay_time); - framerate *= 1000 * 1000; /* clock_period is in MHz */ + framerate = 1.0 / (total_readout_time (UCA_UFO_CAMERA (object)) + delay_time); g_value_set_double(value, framerate); } break; |