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66 lines
1.4 KiB
Python
66 lines
1.4 KiB
Python
import functools
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from math import exp, log
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def lin_get(min, max, val):
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return min + (max - min) * val
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def lin_set(min, max, val):
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return (val - min) / (max - min)
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def log_get(min, max, val):
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return min * exp(log(max / min) * val)
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def log_set(min, max, val):
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return log(val / min) / log(max / min)
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def from_db(func):
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"""fader|level converter for getters"""
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@functools.wraps(func)
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def wrapper(*args, **kwargs):
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retval = func(*args, **kwargs)
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if retval >= 1:
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return 10
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elif retval >= 0.5:
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return round((40 * retval) - 30, 1)
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elif retval >= 0.25:
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return round((80 * retval) - 50, 1)
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elif retval >= 0.0625:
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return round((160 * retval) - 70, 1)
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elif retval >= 0:
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return round((480 * retval) - 90, 1)
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else:
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return -90
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return wrapper
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def to_db(func):
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"""fader|level converter for setters"""
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@functools.wraps(func)
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def wrapper(*args, **kwargs):
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param, val = args
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if val >= 10:
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val = 1
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elif val >= -10:
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val = (val + 30) / 40
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elif val >= -30:
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val = (val + 50) / 80
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elif val >= -60:
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val = (val + 70) / 160
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elif val >= -90:
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val = (val + 90) / 480
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else:
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val = 0
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func(param, val, **kwargs)
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return wrapper
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