Added nvgRGBf and nvgRGBAf constructor functions.

src/nanovg.c

@@ -283,12 +283,23 @@ struct NVGcolor nvgRGB(unsigned char r, unsigned char g, unsigned char b)
 	return nvgRGBA(r,g,b,255);
 }
 
+struct NVGcolor nvgRGBf(float r, float g, float b)
+{
+	return nvgRGBA(r,g,b,1.0f);
+}
+
 struct NVGcolor nvgRGBA(unsigned char r, unsigned char g, unsigned char b, unsigned char a)
 {
 	struct NVGcolor color = {r/255.0f, g/255.0f, b/255.0f, a/255.0f};
 	return color;
 }
 
+struct NVGcolor nvgRGBAf(float r, float g, float b, float a)
+{
+	struct NVGcolor color = {r, g, b, a};
+	return color;
+}
+
 struct NVGcolor nvgTransRGBA(struct NVGcolor c, unsigned char a)
 {
 	c.a = a / 255.0f;

src/nanovg.h

@@ -113,12 +113,20 @@ void nvgEndFrame(struct NVGcontext* ctx);
 //
 // Colors in NanoVG are stored as unsigned ints in ABGR format.
 
-// Returns a color value from red, green, blue values. Alpha will be set to 255.
+// Returns a color value from red, green, blue values. Alpha will be set to 255 (1.0f).
 struct NVGcolor nvgRGB(unsigned char r, unsigned char g, unsigned char b);
 
+// Returns a color value from red, green, blue values. Alpha will be set to 1.0f.
+struct NVGcolor nvgRGBf(float r, float g, float b);
+
+
 // Returns a color value from red, green, blue and alpha values.
 struct NVGcolor nvgRGBA(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
 
+// Returns a color value from red, green, blue and alpha values.
+struct NVGcolor nvgRGBAf(float r, float g, float b, float a);
+
+
 // Linearly interpoaltes from color c0 to c1, and returns resulting color value.
 struct NVGcolor nvgLerpRGBA(struct NVGcolor c0, struct NVGcolor c1, float u);