Move config registry/option to librecomp + added Color conf opt type

2026-06-18 07:35:17 -04:00 · 2024-07-11 12:33:03 -05:00
parent f2869486cc
commit e75cfd054b
28 changed files with 522 additions and 486 deletions
@@ -0,0 +1,145 @@
+#include "hsv.h"
+#include <algorithm> // std::min, std::max and std::clamp
+#include <math.h>
+
+namespace recompui {
+
+void HsvToRgb(HsvColor& hsv, RgbColor& rgb)
+{
+    unsigned char region, remainder, p, q, t;
+    
+    if (hsv.s == 0)
+    {
+        rgb.r = hsv.v;
+        rgb.g = hsv.v;
+        rgb.b = hsv.v;
+        return;
+    }
+    
+    region = hsv.h / 43;
+    remainder = (hsv.h - (region * 43)) * 6; 
+    
+    p = (hsv.v * (255 - hsv.s)) >> 8;
+    q = (hsv.v * (255 - ((hsv.s * remainder) >> 8))) >> 8;
+    t = (hsv.v * (255 - ((hsv.s * (255 - remainder)) >> 8))) >> 8;
+    
+    switch (region)
+    {
+        case 0:
+            rgb.r = hsv.v; rgb.g = t; rgb.b = p;
+            break;
+        case 1:
+            rgb.r = q; rgb.g = hsv.v; rgb.b = p;
+            break;
+        case 2:
+            rgb.r = p; rgb.g = hsv.v; rgb.b = t;
+            break;
+        case 3:
+            rgb.r = p; rgb.g = q; rgb.b = hsv.v;
+            break;
+        case 4:
+            rgb.r = t; rgb.g = p; rgb.b = hsv.v;
+            break;
+        default:
+            rgb.r = hsv.v; rgb.g = p; rgb.b = q;
+            break;
+    }
+}
+
+void RgbToHsv(RgbColor& rgb, HsvColor& hsv)
+{
+    unsigned char rgbMin, rgbMax;
+
+    rgbMin = rgb.r < rgb.g ? (rgb.r < rgb.b ? rgb.r : rgb.b) : (rgb.g < rgb.b ? rgb.g : rgb.b);
+    rgbMax = rgb.r > rgb.g ? (rgb.r > rgb.b ? rgb.r : rgb.b) : (rgb.g > rgb.b ? rgb.g : rgb.b);
+    
+    hsv.v = rgbMax;
+    if (hsv.v == 0)
+    {
+        hsv.h = 0;
+        hsv.s = 0;
+        return;
+    }
+
+    hsv.s = 255 * long(rgbMax - rgbMin) / hsv.v;
+    if (hsv.s == 0)
+    {
+        hsv.h = 0;
+        return;
+    }
+
+    if (rgbMax == rgb.r)
+        hsv.h = 0 + 43 * (rgb.g - rgb.b) / (rgbMax - rgbMin);
+    else if (rgbMax == rgb.g)
+        hsv.h = 85 + 43 * (rgb.b - rgb.r) / (rgbMax - rgbMin);
+    else
+        hsv.h = 171 + 43 * (rgb.r - rgb.g) / (rgbMax - rgbMin);
+}
+
+static unsigned char clamp_255(float f) {
+    return std::clamp((int)round(f), 0, 255);
+}
+
+void HsvFToRgb(HsvColorF in, RgbColor& out)
+{
+    float      hh, p, q, t, ff;
+    long        i;
+
+    unsigned char val = clamp_255(in.v * 255.0f);
+
+    if (in.s <= 0.0) {
+        out.r = val;
+        out.g = val;
+        out.b = val;
+        return;
+    }
+
+    hh = in.h;
+    if (hh >= 360.0f) hh = 0.0f;
+    hh /= 60.0f;
+    i = (float)hh;
+    ff = hh - i;
+    p = in.v * (1.0f - in.s);
+    q = in.v * (1.0f - (in.s * ff));
+    t = in.v * (1.0f - (in.s * (1.0f - ff)));
+
+    unsigned char up = clamp_255(p * 255.0f);
+    unsigned char uq = clamp_255(q * 255.0f);
+    unsigned char ut = clamp_255(t * 255.0f);
+
+    switch (i) {
+    case 0:
+        out.r = val;
+        out.g = ut;
+        out.b = up;
+        return;
+    case 1:
+        out.r = uq;
+        out.g = val;
+        out.b = up;
+        return;
+    case 2:
+        out.r = up;
+        out.g = val;
+        out.b = ut;
+        return;
+    case 3:
+        out.r = up;
+        out.g = uq;
+        out.b = val;
+        return;
+    case 4:
+        out.r = ut;
+        out.g = up;
+        out.b = val;
+        return;
+    case 5:
+    default:
+        out.r = val;
+        out.g = up;
+        out.b = uq;
+        return;
+    }
+}
+
+}