Zack Buhman
25e299feba
This is a reshuffling of filenames, extensions, paths, make rules, just because I felt like it.
33 lines
866 B
C++
33 lines
866 B
C++
#include "rgb.hpp"
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struct rgb hsv_to_rgb(struct hsv hsv)
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{
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struct rgb rgb;
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unsigned char region, remainder, p, q, t;
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if (hsv.s == 0) {
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rgb.r = hsv.v;
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rgb.g = hsv.v;
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rgb.b = hsv.v;
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return rgb;
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}
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region = hsv.h / 43;
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remainder = (hsv.h - (region * 43)) * 6;
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p = (hsv.v * (255 - hsv.s)) >> 8;
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q = (hsv.v * (255 - ((hsv.s * remainder) >> 8))) >> 8;
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t = (hsv.v * (255 - ((hsv.s * (255 - remainder)) >> 8))) >> 8;
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switch (region) {
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case 0: rgb.r = hsv.v; rgb.g = t; rgb.b = p; break;
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case 1: rgb.r = q; rgb.g = hsv.v; rgb.b = p; break;
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case 2: rgb.r = p; rgb.g = hsv.v; rgb.b = t; break;
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case 3: rgb.r = p; rgb.g = q; rgb.b = hsv.v; break;
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case 4: rgb.r = t; rgb.g = p; rgb.b = hsv.v; break;
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default: rgb.r = hsv.v; rgb.g = p; rgb.b = q; break;
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}
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return rgb;
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}
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