From e0d586893deb24b83a0c21825ffe0fa48926210c Mon Sep 17 00:00:00 2001
From: Elias Naur <mail@eliasnaur.com>
Date: Thu, 25 Apr 2019 09:56:34 +0200
Subject: [PATCH] ui/app/internal/gpu: flush before drawing

And delete an unnecessary error check from Flush to make sure pending
draws are always finalized.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
---
 ui/app/internal/gpu/gpu.go | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/ui/app/internal/gpu/gpu.go b/ui/app/internal/gpu/gpu.go
index 6afcc199..d0ae58b7 100644
--- a/ui/app/internal/gpu/gpu.go
+++ b/ui/app/internal/gpu/gpu.go
@@ -273,9 +273,6 @@ func (g *GPU) Release() {
 }
 
 func (g *GPU) Flush() error {
-	if g.err != nil {
-		return g.err
-	}
 	if g.drawing {
 		st := <-g.results
 		g.setErr(st.err)
@@ -305,6 +302,7 @@ func (g *GPU) Draw(profile bool, viewport image.Point, op ui.Op) {
 	if g.err != nil {
 		return
 	}
+	g.Flush()
 	g.ops.collect(g.cache, op, viewport)
 	g.frames <- frame{profile, viewport, g.ops}
 	g.drawing = true