Start adding a unified shaper access infrastructure
Add global shape_plan. Unused so far.
diff --git a/src/hb-shape-plan.h b/src/hb-shape-plan.h
new file mode 100644
index 0000000..5160b95
--- /dev/null
+++ b/src/hb-shape-plan.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright © 2012 Google, Inc.
+ *
+ * This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_SHAPE_PLAN_H
+#define HB_SHAPE_PLAN_H
+
+/* TODO To become public one day */
+
+#include "hb-private.hh"
+
+#include "hb-buffer-private.hh"
+
+
+typedef struct hb_shape_plan_t hb_shape_plan;
+
+/*
+ * hb_shape_plan_t
+ */
+
+HB_INTERNAL hb_shape_plan_t *
+hb_shape_plan_create (hb_face_t *face,
+ const hb_segment_properties_t *props,
+ const hb_feature_t *user_features,
+ unsigned int num_user_features,
+ const char * const *shaper_list);
+
+HB_INTERNAL hb_shape_plan_t *
+hb_shape_plan_get_empty (void);
+
+HB_INTERNAL hb_shape_plan_t *
+hb_shape_plan_reference (hb_shape_plan_t *shape_plan);
+
+HB_INTERNAL void
+hb_shape_plan_destroy (hb_shape_plan_t *shape_plan);
+
+
+#endif /* HB_SHAPE_PLAN_H */
