[gtk/wip/chergert/gdk-macos-gl-renderer] macos: clear current context if necessary



commit b64e83f4bd9cec9f0fdd2d2b9a6469decde5ba82
Author: Christian Hergert <chergert redhat com>
Date:   Tue Oct 27 19:22:27 2020 -0700

    macos: clear current context if necessary

 gdk/macos/gdkmacosglcontext.c | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/gdk/macos/gdkmacosglcontext.c b/gdk/macos/gdkmacosglcontext.c
index b5ba191751..830ad87d62 100644
--- a/gdk/macos/gdkmacosglcontext.c
+++ b/gdk/macos/gdkmacosglcontext.c
@@ -269,6 +269,9 @@ gdk_macos_gl_context_dispose (GObject *gobject)
     {
       NSOpenGLContext *gl_context = g_steal_pointer (&self->gl_context);
 
+      if (gl_context == [NSOpenGLContext currentContext])
+        [NSOpenGLContext clearCurrentContext];
+
       [gl_context clearDrawable];
       [gl_context release];
     }


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