Add missing color.h

src/base/color.h

@@ -0,0 +1,59 @@
+
+#ifndef BASE_COLOR_H
+#define BASE_COLOR_H
+
+#include "vmath.h"
+
+/*
+	Title: Color handling
+*/
+
+/*
+	Function: HueToRgb
+		Converts Hue to RGB
+*/
+inline float HueToRgb(float v1, float v2, float h)
+{
+	if(h < 0.0f) h += 1;
+	if(h > 1.0f) h -= 1;
+	if((6.0f * h) < 1.0f) return v1 + (v2 - v1) * 6.0f * h;
+	if((2.0f * h) < 1.0f) return v2;
+	if((3.0f * h) < 2.0f) return v1 + (v2 - v1) * ((2.0f/3.0f) - h) * 6.0f;
+	return v1;
+}
+
+/*
+	Function: HslToRgb
+		Converts HSL to RGB
+*/
+inline vec3 HslToRgb(vec3 HSL)
+{
+	if(HSL.s == 0.0f)
+		return vec3(HSL.l, HSL.l, HSL.l);
+	else
+	{
+		float v2 = HSL.l < 0.5f ? HSL.l * (1.0f + HSL.s) : (HSL.l+HSL.s) - (HSL.s*HSL.l);
+		float v1 = 2.0f * HSL.l - v2;
+
+		return vec3(HueToRgb(v1, v2, HSL.h + (1.0f/3.0f)), HueToRgb(v1, v2, HSL.h), HueToRgb(v1, v2, HSL.h - (1.0f/3.0f)));
+	}
+}
+
+/*
+	Function: HexToRgba
+		Converts Hex to Rgba
+
+	Remarks: Hex should be RGBA8
+*/
+inline vec4 HexToRgba(int hex)
+{
+	vec4 c;
+	c.r = ((hex >> 24) & 0xFF) / 255.0f;
+	c.g = ((hex >> 16) & 0xFF) / 255.0f;
+	c.b = ((hex >> 8) & 0xFF) / 255.0f;
+	c.a = (hex & 0xFF) / 255.0f;
+
+	return c;
+}
+
+#endif