From e0894879f194c68d0790188a0bde9bd7dc386d21 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Wed, 27 Jul 2016 02:20:42 +0900
Subject: [PATCH] pixels: Remove IsStale

---
 imageimpl.go              |  5 +----
 internal/pixels/pixels.go | 11 +++++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/imageimpl.go b/imageimpl.go
index 3efe4331e..888ec1c6f 100644
--- a/imageimpl.go
+++ b/imageimpl.go
@@ -194,10 +194,7 @@ func (i *imageImpl) ensurePixels(context *opengl.Context) error {
 	if i.disposed {
 		return nil
 	}
-	if !i.pixels.IsStale() {
-		return nil
-	}
-	if err := i.pixels.Reset(context); err != nil {
+	if err := i.pixels.ResetIfStale(context); err != nil {
 		return err
 	}
 	return nil
diff --git a/internal/pixels/pixels.go b/internal/pixels/pixels.go
index 89d816d69..e3f3d60d3 100644
--- a/internal/pixels/pixels.go
+++ b/internal/pixels/pixels.go
@@ -47,10 +47,6 @@ func NewPixels(image *graphics.Image) *Pixels {
 	}
 }
 
-func (p *Pixels) IsStale() bool {
-	return p.stale
-}
-
 func (p *Pixels) MakeStale() {
 	p.basePixels = nil
 	p.baseColor = nil
@@ -134,6 +130,13 @@ func (p *Pixels) Reset(context *opengl.Context) error {
 	return nil
 }
 
+func (p *Pixels) ResetIfStale(context *opengl.Context) error {
+	if !p.stale {
+		return nil
+	}
+	return p.Reset(context)
+}
+
 func (p *Pixels) HasDependency() bool {
 	if p.stale {
 		return false