display: Add an accessor to get the renderer out of a display

https://bugzilla.gnome.org/show_bug.cgi?id=657347

Reviewed-by: Robert Bragg <robert@linux.intel.com>

cogl/cogl-display.c

@@ -119,6 +119,12 @@ cogl_display_new (CoglRenderer *renderer,
   return _cogl_display_object_new (display);
 }
 
+CoglRenderer *
+cogl_display_get_renderer (CoglDisplay *display)
+{
+  return display->renderer;
+}
+
 gboolean
 cogl_display_setup (CoglDisplay *display,
                     GError **error)

cogl/cogl-display.h

@@ -81,6 +81,10 @@ CoglDisplay *
 cogl_display_new (CoglRenderer *renderer,
                   CoglOnscreenTemplate *onscreen_template);
 
+#define cogl_display_get_rendrer cogl_display_get_rendrer_EXP
+CoglRenderer *
+cogl_display_get_renderer (CoglDisplay *display);
+
 #define cogl_display_setup cogl_display_setup_EXP
 gboolean
 cogl_display_setup (CoglDisplay *display,

doc/reference/cogl-2.0-experimental/cogl-2.0-experimental-sections.txt

@@ -57,6 +57,7 @@ cogl_onscreen_template_new
 <FILE>cogl-display</FILE>
 <TITLE>CoglDisplay: Setup a display pipeline</TITLE>
 cogl_display_new
+cogl_display_get_renderer
 cogl_display_setup
 
 <SUBSECTION>