diff options
Diffstat (limited to 'src/cameras')
| -rw-r--r-- | src/cameras/uca-pco-camera.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/cameras/uca-pco-camera.c b/src/cameras/uca-pco-camera.c index 2dd13b6..0183bcd 100644 --- a/src/cameras/uca-pco-camera.c +++ b/src/cameras/uca-pco-camera.c @@ -71,6 +71,7 @@ GQuark uca_pco_camera_error_quark() enum { PROP_NAME = N_BASE_PROPERTIES, + PROP_DELAY_TIME, PROP_COOLING_POINT, N_PROPERTIES }; @@ -84,6 +85,7 @@ static gint base_overrideables[] = { PROP_SENSOR_VERTICAL_BINNING, PROP_SENSOR_VERTICAL_BINNINGS, PROP_SENSOR_MAX_FRAME_RATE, + PROP_EXPOSURE_TIME, PROP_TRIGGER_MODE, PROP_ROI_X, PROP_ROI_Y, @@ -125,12 +127,18 @@ struct _UcaPcoCameraPrivate { GValueArray *horizontal_binnings; GValueArray *vertical_binnings; + /* The time bases are given as pco time bases (TIMEBASE_NS and so on) */ + guint16 delay_timebase; + guint16 exposure_timebase; + frameindex_t last_frame; guint16 active_segment; guint num_recorded_images; guint current_image; }; +#define TIMEBASE_INVALID 0xDEAD + static pco_cl_map_entry pco_cl_map[] = { { CAMERATYPE_PCO_EDGE, "libFullAreaGray8.so", FG_CL_8BIT_FULL_10, FG_GRAY, 30.0f, FALSE }, { CAMERATYPE_PCO4000, "libDualAreaGray16.so", FG_CL_SINGLETAP_16_BIT, FG_GRAY16, 5.0f, TRUE }, @@ -199,6 +207,37 @@ static guint override_temperature_range(UcaPcoCameraPrivate *priv) return err; } +static gdouble convert_timebase(guint16 timebase) +{ + switch (timebase) { + case TIMEBASE_NS: + return 10e-9; + case TIMEBASE_US: + return 10e-6; + case TIMEBASE_MS: + return 10e-3; + default: + g_warning("Unknown timebase"); + } + return 10e-3; +} + +static void read_timebase(UcaPcoCameraPrivate *priv) +{ + pco_get_timebase(priv->pco, &priv->delay_timebase, &priv->exposure_timebase); +} + +static gdouble get_suitable_timebase(gdouble time) +{ + if (time * 10e3 >= 1.0) + return TIMEBASE_MS; + if (time * 10e6 >= 1.0) + return TIMEBASE_US; + if (time * 10e9 >= 1.0) + return TIMEBASE_NS; + return TIMEBASE_INVALID; +} + UcaPcoCamera *uca_pco_camera_new(GError **error) { pco_handle pco = pco_init(); @@ -413,6 +452,64 @@ static void uca_pco_camera_set_property(GObject *object, guint property_id, cons UcaPcoCameraPrivate *priv = UCA_PCO_CAMERA_GET_PRIVATE(object); switch (property_id) { + case PROP_EXPOSURE_TIME: + { + gdouble time = g_value_get_double(value); + + if (priv->exposure_timebase == TIMEBASE_INVALID) + read_timebase(priv); + + /* + * Lets check if we can express the time in the current time + * base. If not, we need to adjust that. + */ + guint16 suitable_timebase = get_suitable_timebase(time); + + if (suitable_timebase == TIMEBASE_INVALID) { + g_warning("Cannot set such a small exposure time"); + } + else { + if (suitable_timebase != priv->exposure_timebase) { + priv->exposure_timebase = suitable_timebase; + pco_set_timebase(priv->pco, priv->delay_timebase, suitable_timebase); + } + + gdouble timebase = convert_timebase(suitable_timebase); + guint32 timesteps = time / timebase; + pco_set_exposure_time(priv->pco, timesteps); + } + } + break; + + case PROP_DELAY_TIME: + { + gdouble time = g_value_get_double(value); + + if (priv->delay_timebase == TIMEBASE_INVALID) + read_timebase(priv); + + /* + * Lets check if we can express the time in the current time + * base. If not, we need to adjust that. + */ + guint16 suitable_timebase = get_suitable_timebase(time); + + if (suitable_timebase == TIMEBASE_INVALID) { + g_warning("Cannot set such a small exposure time"); + } + else { + if (suitable_timebase != priv->delay_timebase) { + priv->delay_timebase = suitable_timebase; + pco_set_timebase(priv->pco, suitable_timebase, priv->exposure_timebase); + } + + gdouble timebase = convert_timebase(suitable_timebase); + guint32 timesteps = time / timebase; + pco_set_delay_time(priv->pco, timesteps); + } + } + break; + case PROP_COOLING_POINT: { int16_t temperature = (int16_t) g_value_get_int(value); @@ -491,6 +588,30 @@ static void uca_pco_camera_get_property(GObject *object, guint property_id, GVal g_value_set_uint(value, 16); break; + case PROP_EXPOSURE_TIME: + { + uint32_t exposure_time; + pco_get_exposure_time(priv->pco, &exposure_time); + + if (priv->exposure_timebase == TIMEBASE_INVALID) + read_timebase(priv); + + g_value_set_double(value, convert_timebase(priv->exposure_timebase) * exposure_time); + } + break; + + case PROP_DELAY_TIME: + { + uint32_t delay_time; + pco_get_delay_time(priv->pco, &delay_time); + + if (priv->delay_timebase == TIMEBASE_INVALID) + read_timebase(priv); + + g_value_set_double(value, convert_timebase(priv->delay_timebase) * delay_time); + } + break; + case PROP_HAS_STREAMING: g_value_set_boolean(value, TRUE); break; @@ -620,6 +741,13 @@ static void uca_pco_camera_class_init(UcaPcoCameraClass *klass) "Name of the camera", "Name of the camera", "", G_PARAM_READABLE); + + pco_properties[PROP_DELAY_TIME] = + g_param_spec_double("delay-time", + "Delay time", + "Delay before starting actual exposure", + 0.0, G_MAXDOUBLE, 0.0, + G_PARAM_READWRITE); /* * The default values here are set arbitrarily, because we are not yet @@ -648,4 +776,7 @@ static void uca_pco_camera_init(UcaPcoCamera *self) self->priv->vertical_binnings = NULL; self->priv->camera_description = NULL; self->priv->last_frame = 0; + + self->priv->delay_timebase = TIMEBASE_INVALID; + self->priv->exposure_timebase = TIMEBASE_INVALID; } |