/*
- * Copyright (C) 2010 Google, Inc.
+ * Copyright © 2010 Google, Inc.
*
* This is part of HarfBuzz, a text shaping library.
*
#ifndef HB_OT_SHAPE_PRIVATE_HH
#define HB_OT_SHAPE_PRIVATE_HH
-#include "hb-private.h"
+#include "hb-private.hh"
#include "hb-ot-shape.h"
-#include "hb-buffer-private.hh"
+#include "hb-ot-map-private.hh"
+#include "hb-ot-shape-complex-private.hh"
HB_BEGIN_DECLS
-struct hb_mask_allocator_t;
+
+enum hb_ot_complex_shaper_t;
+
+struct hb_ot_shape_plan_t
+{
+ friend struct hb_ot_shape_planner_t;
+
+ hb_ot_map_t map;
+ hb_ot_complex_shaper_t shaper;
+
+ hb_ot_shape_plan_t (void) : map () {}
+ ~hb_ot_shape_plan_t (void) { map.finish (); }
+
+ private:
+ NO_COPY (hb_ot_shape_plan_t);
+};
+
+struct hb_ot_shape_planner_t
+{
+ hb_ot_map_builder_t map;
+ hb_ot_complex_shaper_t shaper;
+
+ hb_ot_shape_planner_t (void) : map () {}
+ ~hb_ot_shape_planner_t (void) { map.finish (); }
+
+ inline void compile (hb_face_t *face,
+ const hb_segment_properties_t *props,
+ struct hb_ot_shape_plan_t &plan)
+ {
+ plan.shaper = shaper;
+ map.compile (face, props, plan.map);
+ }
+
+ private:
+ NO_COPY (hb_ot_shape_planner_t);
+};
+
struct hb_ot_shape_context_t
{
- /* Input to hb_ot_shape() */
+ /* Input to hb_ot_shape_execute() */
+ hb_ot_shape_plan_t *plan;
hb_font_t *font;
hb_face_t *face;
hb_buffer_t *buffer;
- hb_feature_t *features;
- unsigned int num_features;
+ const hb_feature_t *user_features;
+ unsigned int num_user_features;
/* Transient stuff */
- hb_direction_t original_direction;
+ hb_direction_t target_direction;
hb_bool_t applied_substitute_complex;
hb_bool_t applied_position_complex;
-
- struct hb_mask_allocator_t *allocator;
};
+static inline hb_bool_t
+is_variation_selector (hb_codepoint_t unicode)
+{
+ return unlikely ((unicode >= 0x180B && unicode <= 0x180D) || /* MONGOLIAN FREE VARIATION SELECTOR ONE..THREE */
+ (unicode >= 0xFE00 && unicode <= 0xFE0F) || /* VARIATION SELECTOR-1..16 */
+ (unicode >= 0xE0100 && unicode <= 0xE01EF)); /* VARIATION SELECTOR-17..256 */
+}
+
+static inline void
+hb_glyph_info_set_unicode_props (hb_glyph_info_t *info, hb_unicode_funcs_t *unicode)
+{
+ info->general_category() = hb_unicode_general_category (unicode, info->codepoint);
+ info->combining_class() = hb_unicode_combining_class (unicode, info->codepoint);
+}
+
+HB_INTERNAL void _hb_set_unicode_props (hb_buffer_t *buffer);
+
+HB_INTERNAL void _hb_ot_shape_normalize (hb_ot_shape_context_t *c);
+
HB_END_DECLS
#endif /* HB_OT_SHAPE_PRIVATE_HH */