Removed nvgIsBlack, and added isBlack to demo.c

example/demo.c

@@ -24,6 +24,16 @@
 #define ICON_LOGIN 0xE740
 #define ICON_TRASH 0xE729
 
+// Returns 1 if col.rgba is 0.0f,0.0f,0.0f,0.0f, 0 otherwise
+int isBlack( struct NVGcolor col )
+{
+	if( col.r == 0.0f && col.g == 0.0f && col.b == 0.0f && col.a == 0.0f )
+	{
+		return 1;
+	}
+	return 0;
+}
+
 static char* cpToUTF8(int cp, char* str)
 {
 	int n = 0;
@@ -261,10 +271,10 @@ void drawButton(struct NVGcontext* vg, int preicon, const char* text, float x, f
 	float cornerRadius = 4.0f;
 	float tw = 0, iw = 0;
 
-	bg = nvgLinearGradient(vg, x,y,x,y+h, nvgRGBA(255,255,255,nvgIsBlack(col)?16:32), nvgRGBA(0,0,0,nvgIsBlack(col)?16:32));
+	bg = nvgLinearGradient(vg, x,y,x,y+h, nvgRGBA(255,255,255,isBlack(col)?16:32), nvgRGBA(0,0,0,isBlack(col)?16:32));
 	nvgBeginPath(vg);
 	nvgRoundedRect(vg, x+1,y+1, w-2,h-2, cornerRadius-1);
-	if (!nvgIsBlack(col)) {
+	if (!isBlack(col)) {
 		nvgFillColor(vg, col);
 		nvgFill(vg);
 	}

src/nanovg.c

@@ -363,14 +363,7 @@ struct NVGcolor nvgHSLA(float h, float s, float l, unsigned char a)
 	return col;
 }
 
-int nvgIsBlack( struct NVGcolor col )
-{
-	if( col.r == 0.0f && col.g == 0.0f && col.b == 0.0f && col.a == 0.0f )
-	{
-		return 1;
-	}
-	return 0;
-}
+
 
 static struct NVGstate* nvg__getState(struct NVGcontext* ctx)
 {

src/nanovg.h

@@ -144,9 +144,6 @@ struct NVGcolor nvgHSL(float h, float s, float l);
 // HSL values are all in range [0..1], alpha in range [0..255]
 struct NVGcolor nvgHSLA(float h, float s, float l, unsigned char a);
 
-// Returns 1 if col.rgba is 0.0f,0.0f,0.0f,0.0f, 0 otherwise
-int nvgIsBlack( struct NVGcolor col );
-
 //
 // State Handling
 //