Fill in photon energy, clen and adu for CBFs

This needed a bit of reorganisation and clarification of who is
repsonsible for loading what.  The low-level file loaders, e.g.
hdf5_read and hdf5_read2 in hdf5-file.c or cbf_read in image.c, are
responsible.  There is a helper function adjust_centering_for_rail in
detector.h which they can use.

It seems like this could be done more cleanly at the imagefile layer.
However, we need to make sure that the "old" hdfile API still works on
its own, even when not accessed via the new imagefile API.

1 files changed, 53 insertions, 0 deletions

diff --git a/libcrystfel/src/image.c b/libcrystfel/src/image.c
index a8c278fc..849d95bf 100644
--- a/libcrystfel/src/image.c
+++ b/libcrystfel/src/image.c
@@ -521,6 +521,48 @@ static int unpack_panels(struct image *image, signed int *data, int data_width)
 }
 
 
+static void cbf_fill_in_beam_parameters(struct beam_params *beam,
+                                        struct imagefile *f,
+                                        struct image *image)
+{
+	double eV;
+
+	if ( beam->photon_energy_from == NULL ) {
+
+		/* Explicit value given */
+		eV = beam->photon_energy;
+
+	} else {
+
+		ERROR("Can't get photon energy from CBF yet.\n");
+		eV = 0.0;
+
+	}
+
+	image->lambda = ph_en_to_lambda(eV_to_J(eV))*beam->photon_energy_scale;
+}
+
+
+static void cbf_fill_in_clen(struct detector *det, struct imagefile *f)
+{
+	int i;
+
+	for ( i=0; i<det->n_panels; i++ ) {
+
+		struct panel *p = &det->panels[i];
+
+		if ( p->clen_from != NULL ) {
+
+			ERROR("Can't get clen from CBF yet.\n");
+
+		}
+
+		adjust_centering_for_rail(p);
+
+	}
+}
+
+
 static int read_cbf(struct imagefile *f, struct image *image)
 {
 	cbf_handle cbfh;
@@ -617,6 +659,17 @@ static int read_cbf(struct imagefile *f, struct image *image)
 	unpack_panels(image, data, dimfast);
 	free(data);
 
+	if ( image->beam != NULL ) {
+		cbf_fill_in_beam_parameters(image->beam, f, image);
+		if ( image->lambda > 1000 ) {
+			ERROR("WARNING: Missing or nonsensical wavelength "
+			      "(%e m) for %s.\n",
+			      image->lambda, image->filename);
+		}
+	}
+	cbf_fill_in_clen(image->det, f);
+	fill_in_adu(image);
+
 	cbf_free_handle(cbfh);
 	return 0;
 }