[gtk+] gl: Store the legacy bit in the GL program data

[Emmanuele Bassi <ebassi src gnome org>]

commit 24230ca78363d8608e77c639db7662c11257f970
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Tue Oct 6 19:55:07 2015 +0100

    gl: Store the legacy bit in the GL program data
    
    We need to know if we're using a legacy GL context in various places.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=756142

 gdk/gdkglcontext.c        |    5 ++++-
 gdk/gdkglcontextprivate.h |    2 ++
 2 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/gdk/gdkglcontext.c b/gdk/gdkglcontext.c
index 874f1ad..d7420e9 100644
--- a/gdk/gdkglcontext.c
+++ b/gdk/gdkglcontext.c
@@ -345,7 +345,10 @@ gdk_gl_context_get_paint_data (GdkGLContext *context)
   GdkGLContextPrivate *priv = gdk_gl_context_get_instance_private (context);
 
   if (priv->paint_data == NULL)
-    priv->paint_data = g_new0 (GdkGLContextPaintData, 1);
+    {
+      priv->paint_data = g_new0 (GdkGLContextPaintData, 1);
+      priv->paint_data->is_legacy = priv->is_legacy;
+    }
 
   return priv->paint_data;
 }
diff --git a/gdk/gdkglcontextprivate.h b/gdk/gdkglcontextprivate.h
index a4f19d6..348c168 100644
--- a/gdk/gdkglcontextprivate.h
+++ b/gdk/gdkglcontextprivate.h
@@ -67,6 +67,8 @@ typedef struct {
   GdkGLContextProgram texture_rect_quad_program;
 
   GdkGLContextProgram *current_program;
+
+  guint is_legacy : 1;
 } GdkGLContextPaintData;
 
 void                    gdk_gl_context_set_is_legacy            (GdkGLContext    *context,