-#define GIS_TYPE_OPENGL (gis_opengl_get_type())
-#define GIS_OPENGL(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GIS_TYPE_OPENGL, GisOpenGL))
-#define GIS_IS_OPENGL(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GIS_TYPE_OPENGL))
-#define GIS_OPENGL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIS_TYPE_OPENGL, GisOpenGLClass))
-#define GIS_IS_OPENGL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIS_TYPE_OPENGL))
-#define GIS_OPENGL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIS_TYPE_OPENGL, GisOpenGLClass))
+#define GRITS_TYPE_OPENGL (grits_opengl_get_type())
+#define GRITS_OPENGL(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GRITS_TYPE_OPENGL, GritsOpenGL))
+#define GRITS_IS_OPENGL(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GRITS_TYPE_OPENGL))
+#define GRITS_OPENGL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GRITS_TYPE_OPENGL, GritsOpenGLClass))
+#define GRITS_IS_OPENGL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GRITS_TYPE_OPENGL))
+#define GRITS_OPENGL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GRITS_TYPE_OPENGL, GritsOpenGLClass))