From 6c357aefb327faeb6eca8809a6a60d0349dfc076 Mon Sep 17 00:00:00 2001
From: Vito Caputo <vcaputo@pengaru.com>
Date: Mon, 3 Feb 2020 15:15:19 -0800
Subject: libs/sig: fixup sig_ops_sin to stay within 0-1
The whole idea was to produce values 0-1, except of course
sig_ops_{mult,const} where one could deliberately get out of
these bounds.
Everything else should stay within 0-1 as it makes everything
much more composable.
---
src/libs/sig/ops_sin.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/libs/sig/ops_sin.c b/src/libs/sig/ops_sin.c
index fa9dfa5..17f08cf 100644
--- a/src/libs/sig/ops_sin.c
+++ b/src/libs/sig/ops_sin.c
@@ -52,7 +52,7 @@ static float ops_sin_output(void *context, unsigned ticks_ms)
rads_per_ms = (M_PI * 2.f) * hz * .001f;
rads = (float)(ticks_ms % ms_per_cycle) * rads_per_ms;
- return sinf(rads);
+ return sinf(rads) * .5f + .5f;
}
--
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