[tim-janik/beast] Support wave-form plotting for BlepSynth (#144)

[Stefan Westerfeld <notifications github com>]

It would be nice if the oscillator wave form (which depends on the oscillator parameters) could be displayed at the UI. I've ported the necessary plotting code from Python (plotblep.py) to C++.

The actual waveform is sampled, so one parameter to tune might be how many samples to use. Or the overlap (copy_samples). Finally we currently don't have the infrastructure to display this, so when enabled, the wave forms of both oscillators are written to "/tmp/plot1" and "/tmp/plot2", just to be able to test it.

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You can view, comment on, or merge this pull request online at:

  https://github.com/tim-janik/beast/pull/144

Commit Summary

• DEVICES: blepsynth/plotblep.py: fix minor plotting bug
• DEVICES: blepsynth/blepsynth.cc: add oscillator shape plotting code

File Changes

• M devices/blepsynth/blepsynth.cc (118)
• M devices/blepsynth/plotblep.py (3)

Patch Links:

• https://github.com/tim-janik/beast/pull/144.patch
• https://github.com/tim-janik/beast/pull/144.diff

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