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Diffstat (limited to 'keyboards/handwired/practice60/hsv2rgb.c')
-rw-r--r-- | keyboards/handwired/practice60/hsv2rgb.c | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/keyboards/handwired/practice60/hsv2rgb.c b/keyboards/handwired/practice60/hsv2rgb.c deleted file mode 100644 index adb7af8fa..000000000 --- a/keyboards/handwired/practice60/hsv2rgb.c +++ /dev/null @@ -1,80 +0,0 @@ -/* hsv2rgb.c - * Integer only conversion functions between HSV and RGB - */ - -#include "hsv2rgb.h" - -// TODO fix these buggy macros -#define max(x,y) ((x>y) ? x:y) -#define min(x,y) ((x>y) ? y:x) -#define min3(x,y,z) (min(min(x,y),z)) -#define max3(x,y,z) (max(max(x,y),z)) - - -rgb_color hsv2rgb(hsv_color hsv) -{ - // From : http://qscribble.blogspot.fr/2008/06/integer-conversion-from-hsl-to-rgb.html - int h = hsv.h; - int s = hsv.s; - int v = hsv.v; - rgb_color rgb = {0, 0, 0}; - - if (v == 0) - return rgb; - - // sextant = 0 .. 5 - int sextant = (h*6)/256; - // f = 0 .. 42 - int f = h - (sextant*256)/6; - - int p = (v * (256 - s))/256; - int q = (v * (256*43 - s*f))/(256*43); - int t = (v * (256*43 - s*(43-f)))/(256*43); - - // Corrige les erreurs dues aux arrondis - p = max(min(p, 255), 0); - q = max(min(q, 255), 0); - t = max(min(t, 255), 0); - - switch(sextant){ - case 0: rgb.r = v; rgb.g = t; rgb.b = p; break; - case 1: rgb.r = q; rgb.g = v; rgb.b = p; break; - case 2: rgb.r = p; rgb.g = v; rgb.b = t; break; - case 3: rgb.r = p; rgb.g = q; rgb.b = v; break; - case 4: rgb.r = t; rgb.g = p; rgb.b = v; break; - default:rgb.r = v; rgb.g = p; rgb.b = q; break; - } - return rgb; -} - - -hsv_color rgb2hsv(rgb_color rgb) -{ - // From : http://www.ruinelli.ch/rgb-to-hsv - hsv_color hsv = {0, 0, 0}; - int min, max, delta; - - min = min3(rgb.r, rgb.g, rgb.b); - max = max3(rgb.r, rgb.g, rgb.b); - - if(max==0) { - hsv.h = 0; - hsv.s = 0; - hsv.v = 0; - return hsv; - } - - hsv.v = max; - delta = max - min; - - hsv.s = (delta)*255 / max; - - if(rgb.r == max) - hsv.h = (rgb.g - rgb.b)*42/delta; // between yellow & magenta - else if(rgb.g == max) - hsv.h = 120 + (rgb.b - rgb.r)*42/delta; // between cyan & yellow - else - hsv.h = 240 + (rgb.r - rgb.g)*42/delta; // between magenta & cyan - - return hsv; -}
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