176 lines
5.3 KiB
C++
176 lines
5.3 KiB
C++
#include "HSVTable.h"
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#include <Arduino.h>
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#include "LEDStrip.h"
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const uint8_t lights[360]={
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0, 0, 0, 0, 0, 1, 1, 2,
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2, 3, 4, 5, 6, 7, 8, 9,
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11, 12, 13, 15, 17, 18, 20, 22,
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24, 26, 28, 30, 32, 35, 37, 39,
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42, 44, 47, 49, 52, 55, 58, 60,
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63, 66, 69, 72, 75, 78, 81, 85,
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88, 91, 94, 97, 101, 104, 107, 111,
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114, 117, 121, 124, 127, 131, 134, 137,
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141, 144, 147, 150, 154, 157, 160, 163,
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167, 170, 173, 176, 179, 182, 185, 188,
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191, 194, 197, 200, 202, 205, 208, 210,
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213, 215, 217, 220, 222, 224, 226, 229,
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231, 232, 234, 236, 238, 239, 241, 242,
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244, 245, 246, 248, 249, 250, 251, 251,
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252, 253, 253, 254, 254, 255, 255, 255,
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255, 255, 255, 255, 254, 254, 253, 253,
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252, 251, 251, 250, 249, 248, 246, 245,
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244, 242, 241, 239, 238, 236, 234, 232,
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231, 229, 226, 224, 222, 220, 217, 215,
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213, 210, 208, 205, 202, 200, 197, 194,
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191, 188, 185, 182, 179, 176, 173, 170,
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167, 163, 160, 157, 154, 150, 147, 144,
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141, 137, 134, 131, 127, 124, 121, 117,
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114, 111, 107, 104, 101, 97, 94, 91,
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88, 85, 81, 78, 75, 72, 69, 66,
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63, 60, 58, 55, 52, 49, 47, 44,
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42, 39, 37, 35, 32, 30, 28, 26,
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24, 22, 20, 18, 17, 15, 13, 12,
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11, 9, 8, 7, 6, 5, 4, 3,
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2, 2, 1, 1, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0};
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const uint8_t HSVlights[61] =
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{0, 4, 8, 13, 17, 21, 25, 30, 34, 38, 42, 47, 51, 55, 59, 64, 68, 72, 76,
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81, 85, 89, 93, 98, 102, 106, 110, 115, 119, 123, 127, 132, 136, 140, 144,
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149, 153, 157, 161, 166, 170, 174, 178, 183, 187, 191, 195, 200, 204, 208,
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212, 217, 221, 225, 229, 234, 238, 242, 246, 251, 255};
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const uint8_t HSVpower[121] =
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{0, 2, 4, 6, 8, 11, 13, 15, 17, 19, 21, 23, 25, 28, 30, 32, 34, 36, 38, 40,
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42, 45, 47, 49, 51, 53, 55, 57, 59, 62, 64, 66, 68, 70, 72, 74, 76, 79, 81,
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83, 85, 87, 89, 91, 93, 96, 98, 100, 102, 104, 106, 108, 110, 113, 115, 117,
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119, 121, 123, 125, 127, 130, 132, 134, 136, 138, 140, 142, 144, 147, 149,
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151, 153, 155, 157, 159, 161, 164, 166, 168, 170, 172, 174, 176, 178, 181,
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183, 185, 187, 189, 191, 193, 195, 198, 200, 202, 204, 206, 208, 210, 212,
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215, 217, 219, 221, 223, 225, 227, 229, 232, 234, 236, 238, 240, 242, 244,
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246, 249, 251, 253, 255};
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// the real HSV rainbow
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rgbpixel_t trueHSV(int angle)
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{
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byte red, green, blue;
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if (angle<60) {red = 255; green = HSVlights[angle]; blue = 0;} else
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if (angle<120) {red = HSVlights[120-angle]; green = 255; blue = 0;} else
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if (angle<180) {red = 0, green = 255; blue = HSVlights[angle-120];} else
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if (angle<240) {red = 0, green = HSVlights[240-angle]; blue = 255;} else
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if (angle<300) {red = HSVlights[angle-240], green = 0; blue = 255;} else
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{red = 255, green = 0; blue = HSVlights[360-angle];}
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//return {red, green, blue};
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return {red, green, blue};
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}
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// the 'power-conscious' HSV rainbow
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rgbpixel_t powerHSV(int angle)
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{
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byte red, green, blue;
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if (angle<120) {red = HSVpower[120-angle]; green = HSVpower[angle]; blue = 0;} else
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if (angle<240) {red = 0; green = HSVpower[240-angle]; blue = HSVpower[angle-120];} else
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{red = HSVpower[angle-240]; green = 0; blue = HSVpower[360-angle];}
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return {red, green, blue};
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}
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// sine wave rainbow
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rgbpixel_t sineHSV(int angle)
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{
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return {lights[(angle+120)%360], lights[angle], lights[(angle+240)%360]};
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}
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// hsv out: 0-360, input rgb 0-255
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float RGBToHSV(rgbpixel_t rgb) {
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float delta; // min;
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float h = 0, v; //, s;
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uint8_t min_ = std::min(std::min(rgb.red, rgb.grn), rgb.blu);
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v = std::max(std::max(rgb.red, rgb.grn), rgb.blu);
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delta = v - min_;
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if (rgb.red == v){
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h = (rgb.grn - rgb.blu) / delta;
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}else if (rgb.grn == v){
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h = 2 + (rgb.blu - rgb.red) / delta;
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}else if (rgb.blu == v){
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h = 4 + (rgb.red - rgb.grn) / delta;
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}
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h *= 60;
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if(h < 0.0){ h = h + 360;}
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if(h > 359.99){ h = 359.99;}
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return isnan(h) ? 0.0 : h;
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}
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rgbpixel_t HSVToRGB(float H) {
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float r = 0.0, g = 0.0, b = 0.0;
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float S = 1.0;
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float V = 1.0;
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if (H < 0) { H += 360; }
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if (H > 359) { H -= 360; }
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if (S == 0.0) {
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r = V; g = V; b = V;
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}else {
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int i;
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float f, p, q, t;
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if (H == 360){ H = 0; }
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else { H = H / 60; }
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i = (int)trunc(H);
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f = H - i;
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p = V * (1.0 - S);
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q = V * (1.0 - (S * f));
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t = V * (1.0 - (S * (1.0 - f)));
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switch (i) {
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case 0:
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r = V; g = t; b = p; break;
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case 1:
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r = q; g = V; b = p; break;
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case 2:
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r = p; g = V; b = t; break;
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case 3:
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r = p; g = q; b = V; break;
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case 4:
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r = t; g = p; b = V; break;
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default:
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r = V; g = p; b = q; break;
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}
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}
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rgbpixel_t pix;
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pix.red = (uint8_t)(r * 255);
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pix.grn = (uint8_t)(g * 255);
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pix.blu = (uint8_t)(b * 255);
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return pix;
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}
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