update get_quantum_efficiency() to use interp1d()

This speeds up the "boot up" time from ~30 seconds to ~12 seconds.

1 files changed, 2 insertions, 10 deletions

diff --git a/src/quantum_efficiency.c b/src/quantum_efficiency.c
index f8ae972..a3996b7 100644
--- a/src/quantum_efficiency.c
+++ b/src/quantum_efficiency.c
@@ -2,17 +2,13 @@
 #include <errno.h>
 #include <string.h>
 #include <stdlib.h>
-#include <gsl/gsl_errno.h>
-#include <gsl/gsl_spline.h>
+#include "misc.h"
 
 static int initialized = 0;
 
 static double *x, *y;
 static size_t size;
 
-gsl_interp_accel *acc;
-gsl_spline *spline;
-
 static int init()
 {
     int i;
@@ -99,10 +95,6 @@ static int init()
 
     fclose(f);
 
-    acc = gsl_interp_accel_alloc();
-    spline = gsl_spline_alloc(gsl_interp_linear, size);
-    gsl_spline_init(spline, x, y, size);
-
     initialized = 1;
 
     return 0;
@@ -121,5 +113,5 @@ double get_quantum_efficiency(double wavelength)
         }
     }
 
-    return gsl_spline_eval(spline, wavelength, acc);
+    return interp1d(wavelength, x, y, size);
 }