From 7cef8675416b5ca3b18164e1c9b9a30bd2912df6 Mon Sep 17 00:00:00 2001
From: Thomas Friedel <tomee6@gmail.com>
Date: Wed, 20 Feb 2019 16:54:04 +0100
Subject: [PATCH] moved backend interface to canvas.go

---
 backend.go | 9 ---------
 canvas.go  | 9 +++++++++
 2 files changed, 9 insertions(+), 9 deletions(-)
 delete mode 100644 backend.go

diff --git a/backend.go b/backend.go
deleted file mode 100644
index e3639a8..0000000
--- a/backend.go
+++ /dev/null
@@ -1,9 +0,0 @@
-package canvas
-
-import "github.com/tfriedel6/canvas/backend/backendbase"
-
-type Backend interface {
-	ClearRect(x, y, w, h int)
-	Clear(pts [4][2]float64)
-	Fill(style *backendbase.Style, pts [][2]float64)
-}
diff --git a/canvas.go b/canvas.go
index 2fc0e7c..a5fcb4b 100644
--- a/canvas.go
+++ b/canvas.go
@@ -37,6 +37,15 @@ type Canvas struct {
 	shadowBuf [][2]float64
 }
 
+// Backend is used by the canvas to actually do the final
+// drawing. This enables the backend to be implemented by
+// various methods (OpenGL, but also other APIs or software)
+type Backend interface {
+	ClearRect(x, y, w, h int)
+	Clear(pts [4][2]float64)
+	Fill(style *backendbase.Style, pts [][2]float64)
+}
+
 type drawState struct {
 	transform     mat
 	fill          drawStyle