From 42aa5fa604a0832c206d54397f4962f3c4ee0249 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Tue, 28 Feb 2023 08:48:25 -0800
Subject: [PATCH] internal/restorable: bug fix: an extended image has a wrong
 state (especially with OpenGL ES)

---
 internal/restorable/image.go | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/internal/restorable/image.go b/internal/restorable/image.go
index a263b586f..eacbb5d94 100644
--- a/internal/restorable/image.go
+++ b/internal/restorable/image.go
@@ -204,14 +204,6 @@ func (i *Image) Extend(width, height int) *Image {
 		Height: float32(sh),
 	}
 	newImg.DrawTriangles(srcs, offsets, vs, is, graphicsdriver.BlendCopy, dr, graphicsdriver.Region{}, NearestFilterShader, nil, false)
-
-	// Overwrite the history as if the image newImg is created only by WritePixels.
-	newImg.clearDrawTrianglesHistory()
-	newImg.basePixels = i.basePixels
-	newImg.stale = i.stale
-	newImg.staleRegions = make([]image.Rectangle, len(i.staleRegions))
-	copy(newImg.staleRegions, i.staleRegions)
-
 	i.Dispose()
 
 	return newImg