wavesynth/Synthesizer: allow empty data

2015-07-23 12:34:54 -06:00 · 2015-07-23 12:34:54 -06:00 · 6b0e120d75
commit 6b0e120d75
parent 5b1165f413
1 changed files with 4 additions and 0 deletions
--- a/artiq/wavesynth/compute_samples.py
+++ b/artiq/wavesynth/compute_samples.py
@ -9,6 +9,8 @@ class Spline:
        self.c = [0.0]

    def set_coefficients(self, c):
+        if not c:
+            c = [0.]
        self.c = copy(c)
        discrete_compensate(self.c)

@ -25,6 +27,8 @@ class SplinePhase:
        self.c0 = 0.0

    def set_coefficients(self, c):
+        if not c:
+            c = [0.]
        self.c0 = c[0]
        c1p = c[1:]
        discrete_compensate(c1p)