diff options
| author | Vito Caputo <vcaputo@pengaru.com> | 2020-02-04 17:17:15 -0800 |
|---|---|---|
| committer | Vito Caputo <vcaputo@pengaru.com> | 2020-02-04 18:07:38 -0800 |
| commit | 64a0fe99038b9c58a815a92db2eb2ded1fd2801a (patch) | |
| tree | afe3d6f56df7e39aba85529984dd810092d84fb3 /src/libs/sig/sig.h | |
| parent | 0b4c227a210dd5edc6186c0050a1d67baf958b98 (diff) | |
libs/sig: square wave; sig_ops_sqr / sig_new_sqr()
This builds minimally upon the existing sine wave code,
just use the sign to drive the signal high or low.
Wikipedia shows a third state for 0 values, but that's for a -1..+1
signal. I'm producing all 0-1 signals as it's more convenient for
this application, but it seems like it would be awkward to return
.5f for the 0 case. So 0 is being treated as just another positive
value; high.
Diffstat (limited to 'src/libs/sig/sig.h')
| -rw-r--r-- | src/libs/sig/sig.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/libs/sig/sig.h b/src/libs/sig/sig.h index e905ba0..917dbc4 100644 --- a/src/libs/sig/sig.h +++ b/src/libs/sig/sig.h @@ -37,16 +37,17 @@ sig_t * sig_new_rand(void); sig_t * sig_new_round(sig_t *x); sig_t * sig_new_scale(sig_t *x, sig_t *min, sig_t *max); sig_t * sig_new_sin(sig_t *hz); +sig_t * sig_new_sqr(sig_t *hz); sig_t * sig_new_sub(sig_t *a, sig_t *b); extern sig_ops_t sig_ops_const; extern sig_ops_t sig_ops_rand; extern sig_ops_t sig_ops_sin; +extern sig_ops_t sig_ops_sqr; /* TODO: extern sig_ops_t sig_ops_tri; extern sig_ops_t sig_ops_saw; -extern sig_ops_t sig_ops_sqr; */ extern sig_ops_t sig_ops_abs; |