[clutter/wip/stereo: 5/6] Adds experimental clutter_backend_get_cogl_context API



commit 224e4ad392b36df9cee5df6332e411a45331f521
Author: Robert Bragg <robert linux intel com>
Date:   Fri Aug 12 16:25:53 2011 +0100

    Adds experimental clutter_backend_get_cogl_context API
    
    This adds API to be able to get the CoglContext associated with the
    ClutterBackend. The CoglContext is required to use some of the
    experimental 2.0 Cogl API.
    
    Note: Since CoglContext is itself experimental API this API should
    considered experimental too.
    
    Note: This API is not yet supported on OSX because OSX still uses the
    stub Cogl winsys and the Clutter backend doesn't explicitly create a
    CoglContext.

 clutter/clutter-backend.c |   26 ++++++++++++++++++++++++++
 clutter/clutter-backend.h |    7 +++++++
 2 files changed, 33 insertions(+), 0 deletions(-)
---
diff --git a/clutter/clutter-backend.c b/clutter/clutter-backend.c
index 73eddcb..80e4853 100644
--- a/clutter/clutter-backend.c
+++ b/clutter/clutter-backend.c
@@ -969,3 +969,29 @@ _clutter_backend_remove_event_translator (ClutterBackend         *backend,
   priv->event_translators =
     g_list_remove (priv->event_translators, translator);
 }
+
+/**
+ * clutter_backend_get_cogl_context:
+ * @backend: a #ClutterBackend
+ *
+ * Retrieves the #CoglContext associated with the given clutter
+ * @backend. A #CoglContext is required when using some of the
+ * experimental 2.0 Cogl API.
+ *
+ * <note>Since CoglContext is itself experimental API this API should
+ * be considered experimental too.</note>
+ *
+ * <note>This API is not yet supported on OSX because OSX still
+ * uses the stub Cogl winsys and the Clutter backend doesn't
+ * explicitly create a CoglContext.</note>
+ *
+ * Return value: The #CoglContext associated with @backend.
+ *
+ * Since: 1.8
+ * Stability: unstable
+ */
+CoglContext *
+clutter_backend_get_cogl_context (ClutterBackend *backend)
+{
+  return backend->cogl_context;
+}
diff --git a/clutter/clutter-backend.h b/clutter/clutter-backend.h
index df8f2cc..0412e3c 100644
--- a/clutter/clutter-backend.h
+++ b/clutter/clutter-backend.h
@@ -31,6 +31,9 @@
 #include <cairo.h>
 #include <glib-object.h>
 #include <pango/pango.h>
+#ifdef COGL_ENABLE_EXPERIMENTAL_2_0_API
+#include <cogl/cogl.h>
+#endif
 
 #include <clutter/clutter-actor.h>
 #include <clutter/clutter-device-manager.h>
@@ -80,6 +83,10 @@ void                        clutter_backend_set_font_options          (ClutterBa
                                                                        const cairo_font_options_t *options);
 const cairo_font_options_t *clutter_backend_get_font_options          (ClutterBackend             *backend);
 
+#ifdef COGL_ENABLE_EXPERIMENTAL_2_0_API
+CoglContext                *clutter_backend_get_cogl_context          (ClutterBackend             *backend);
+#endif
+
 G_END_DECLS
 
 #endif /* __CLUTTER_BACKEND_H__ */



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