harfbuzz-ng roll

third_party/harfbuzz-ng/src/hb-ot-shape-private.hh

 /*
  * Copyright © 2010  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.
@@ skipping 12 matching lines @@
  *
  * Google Author(s): Behdad Esfahbod
  */
 
 #ifndef HB_OT_SHAPE_PRIVATE_HH
 #define HB_OT_SHAPE_PRIVATE_HH
 
 #include "hb-private.hh"
 
 #include "hb-ot-map-private.hh"
-#include "hb-ot-shape-complex-private.hh"
+
+
+
+/* buffer var allocations, used during the entire shaping process */
+#define unicode_props0()        var2.u8[0]
+#define unicode_props1()        var2.u8[1]
+
 
 
 struct hb_ot_shape_plan_t
 {
+  hb_segment_properties_t props;
+  const struct hb_ot_complex_shaper_t *shaper;
   hb_ot_map_t map;
-  hb_ot_complex_shaper_t shaper;
+  const void *data;
 
-  hb_ot_shape_plan_t (void) : map () {}
-  ~hb_ot_shape_plan_t (void) { map.finish (); }
+  inline void substitute_closure (hb_face_t *face, hb_set_t *glyphs) const { map.substitute_closure (this, face, glyphs); }
+  inline void substitute (hb_font_t *font, hb_buffer_t *buffer) const { map.substitute (this, font, buffer); }
+  inline void position (hb_font_t *font, hb_buffer_t *buffer) const { map.position (this, font, buffer); }
+
+  void finish (void) { map.finish (); }
+};
+
+struct hb_ot_shape_planner_t
+{
+  /* In the order that they are filled in. */
+  hb_face_t *face;
+  hb_segment_properties_t props;
+  const struct hb_ot_complex_shaper_t *shaper;
+  hb_ot_map_builder_t map;
+
+  hb_ot_shape_planner_t (const hb_shape_plan_t *master_plan) :
+                         face (master_plan->face),
+                         props (master_plan->props),
+                         shaper (NULL),
+                         map () {}
+  ~hb_ot_shape_planner_t (void) { map.finish (); }
+
+  inline void compile (hb_ot_shape_plan_t &plan)
+  {
+    plan.props = props;
+    plan.shaper = shaper;
+    map.compile (face, &props, plan.map);
+  }
 
   private:
-  NO_COPY (hb_ot_shape_plan_t);
+  NO_COPY (hb_ot_shape_planner_t);
 };
 
 
 
-HB_INTERNAL hb_bool_t
-_hb_ot_shape (hb_font_t          *font,
-              hb_buffer_t        *buffer,
-              const hb_feature_t *features,
-              unsigned int        num_features);
-
-
 inline void
 _hb_glyph_info_set_unicode_props (hb_glyph_info_t *info, hb_unicode_funcs_t *unicode)
 {
-  info->unicode_props0() = ((unsigned int) hb_unicode_general_category (unicode, info->codepoint)) |
-                           (_hb_unicode_is_zero_width (info->codepoint) ? 0x80 : 0);
-  info->unicode_props1() = _hb_unicode_modified_combining_class (unicode, info->codepoint);
+  info->unicode_props0() = ((unsigned int) unicode->general_category (info->codepoint)) |
+                           (unicode->is_zero_width (info->codepoint) ? 0x80 : 0);
+  info->unicode_props1() = unicode->modified_combining_class (info->codepoint);
 }
 
 inline hb_unicode_general_category_t
 _hb_glyph_info_get_general_category (const hb_glyph_info_t *info)
 {
   return (hb_unicode_general_category_t) (info->unicode_props0() & 0x7F);
 }
 
+inline void
+_hb_glyph_info_set_modified_combining_class (hb_glyph_info_t *info, unsigned int modified_class)
+{
+  info->unicode_props1() = modified_class;
+}
+
 inline unsigned int
 _hb_glyph_info_get_modified_combining_class (const hb_glyph_info_t *info)
 {
   return info->unicode_props1();
 }
 
 inline hb_bool_t
 _hb_glyph_info_is_zero_width (const hb_glyph_info_t *info)
 {
   return !!(info->unicode_props0() & 0x80);
 }
 
 #endif /* HB_OT_SHAPE_PRIVATE_HH */