From ab51dfc63669940cfc8bb7a33c9c38e5f40ccb14 Mon Sep 17 00:00:00 2001
From: Manolo Gouy <Manolo>
Date: Sat, 20 Oct 2018 22:09:28 +0000
Subject: Support GL windows on retina display when app does not set
 Fl::use_high_res_GL(1)

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@13078 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 src/Fl_cocoa.mm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm
index 284e96eb5..4cbda304d 100644
--- a/src/Fl_cocoa.mm
+++ b/src/Fl_cocoa.mm
@@ -2202,6 +2202,7 @@ static CGContextRef prepare_bitmap_for_layer(int w, int h ) {
 
 @implementation FLViewGL
 - (void)displayLayer:(CALayer *)layer {
+  if (!Fl::use_high_res_GL()) layer.contentsScale = 1.;
   [self drawRect:[self frame]];
   Fl_Window *window = [(FLWindow*)[self window] getFl_Window];
   if (window->parent()) window->redraw(); // useful during resize of GL subwindow
-- 
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