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| 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/grid | |
| 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/grid')
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