From d52be83efe30ef9a8a1e104be3b353706fadfac3 Mon Sep 17 00:00:00 2001
From: faiface <faiface@localhost.localdomain>
Date: Wed, 4 Jan 2017 19:02:12 +0100
Subject: [PATCH] optimize NRGBA conversion
---
color.go | 3 +++
1 file changed, 3 insertions(+)
diff --git a/color.go b/color.go
index a70ff72..032f406 100644
--- a/color.go
+++ b/color.go
@@ -67,6 +67,9 @@ func (c NRGBA) RGBA() (r, g, b, a uint32) {
// NRGBAModel converts colors to NRGBA format.
var NRGBAModel = color.ModelFunc(func(c color.Color) color.Color {
+ if c, ok := c.(NRGBA); ok {
+ return c
+ }
r, g, b, a := c.RGBA()
if a == 0 {
return NRGBA{0, 0, 0, 0}
--
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