[mutter] egl: Add eglInitialize helper

[Jonas Ådahl <jadahl src gnome org>]

commit 78c121eb10e63cdeff1399cbd909db9156ccca1c
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu Sep 29 22:26:24 2016 +0800

    egl: Add eglInitialize helper
    
    https://bugzilla.gnome.org/show_bug.cgi?id=773629

 src/backends/meta-egl.c |   14 ++++++++++++++
 src/backends/meta-egl.h |    4 ++++
 2 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/src/backends/meta-egl.c b/src/backends/meta-egl.c
index 579c2b2..499b04f 100644
--- a/src/backends/meta-egl.c
+++ b/src/backends/meta-egl.c
@@ -185,6 +185,20 @@ meta_egl_has_extensions (MetaEgl   *egl,
 }
 
 gboolean
+meta_egl_initialize (MetaEgl   *egl,
+                     EGLDisplay display,
+                     GError   **error)
+{
+  if (!eglInitialize (display, NULL, NULL))
+    {
+      set_egl_error (error);
+      return FALSE;
+    }
+
+  return TRUE;
+}
+
+gboolean
 meta_egl_choose_config (MetaEgl      *egl,
                         EGLDisplay    display,
                         const EGLint *attrib_list,
diff --git a/src/backends/meta-egl.h b/src/backends/meta-egl.h
index d354569..40db950 100644
--- a/src/backends/meta-egl.h
+++ b/src/backends/meta-egl.h
@@ -38,6 +38,10 @@ gboolean meta_egl_has_extensions (MetaEgl   *egl,
                                   char      *first_extension,
                                   ...);
 
+gboolean meta_egl_initialize (MetaEgl   *egl,
+                              EGLDisplay display,
+                              GError   **error);
+
 gboolean meta_egl_choose_config (MetaEgl      *egl,
                                  EGLDisplay    display,
                                  const EGLint *attrib_list,