21 lines
515 B
Python
21 lines
515 B
Python
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#!/usr/bin/env python
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from colorsys import hsv_to_rgb
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LUT_SIZE = 256
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SATURATION = 0.8
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VALUE = 1
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RESOLUTION = 12 # in bits
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print('const LED_Colour_t Animation_ColourLUT[] =')
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print('{')
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for i in range(LUT_SIZE):
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h = i / LUT_SIZE
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rgb = hsv_to_rgb(h, SATURATION, VALUE)
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# Gamma-correct
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rgb = tuple(pow(x, 2.2) for x in rgb)
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# Scale to BCM resolution
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(r, g, b) = tuple(round(2 ** RESOLUTION * x) for x in rgb)
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print(' {{ .r = {}, .g = {}, .b = {} }},'.format(r, g, b))
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print('};')
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