From fe6117554647a4f54fb151a97d825fc408d653f5 Mon Sep 17 00:00:00 2001
From: Manolo Gouy <Manolo>
Date: Wed, 23 Sep 2015 13:51:42 +0000
Subject: Mac OS: fixed the Fl_Image_Surface class that produced flipped images
 when the app draws directly to it, without using
 Fl_Image_Surface::draw(Fl_Widget*, int, int).

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10865 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 src/Fl_Image_Surface.cxx | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src')

diff --git a/src/Fl_Image_Surface.cxx b/src/Fl_Image_Surface.cxx
index 11ea267dc..923431123 100644
--- a/src/Fl_Image_Surface.cxx
+++ b/src/Fl_Image_Surface.cxx
@@ -42,6 +42,8 @@ Fl_Image_Surface::Fl_Image_Surface(int w, int h) : Fl_Surface_Device(NULL) {
   helper = new Fl_Quartz_Flipped_Surface_(width, height);
   driver(helper->driver());
   CGContextSaveGState(offscreen);
+  CGContextTranslateCTM(offscreen, 0, height);
+  CGContextScaleCTM(offscreen, 1.0f, -1.0f);
 #elif defined(WIN32)
   helper = new Fl_GDI_Surface_();
   driver(helper->driver());
-- 
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