hb-shaper-private.h

   1 #ifndef HB_SHAPER_PRIVATE_H
   2 #define HB_SHAPER_PRIVATE_H
   3 //Means: succeeded, but don't need to keep any data.
   4 #define HB_SHAPER_DATA_SUCCEEDED ((void*)+1)
   5 //Means: tried but failed to create.
   6 #define HB_SHAPER_DATA_INVALID ((void*)-1)
   7
   8 typedef hb_bool_t hb_shape_func_t(hb_shape_plan_t *shape_plan,
   9                                   hb_font_t *font,
  10                                   hb_buffer_t *buffer,
  11                                   const hb_feature_t *features,
  12                                   unsigned num_features);
  13 #ifdef HAVE_GRAPHITE2
  14 hb_shape_func_t hb_graphite2_shape;
  15 #endif
  16 #ifdef HAVE_OT
  17 hb_shape_func_t hb_ot_shape;
  18 #endif
  19 hb_shape_func_t hb_fallback_shape;
  20
  21 struct hb_shaper_pair_t {
  22   char name[16];
  23   hb_shape_func_t *func;
  24 };
  25
  26 //For embedding in face / font / ...
  27 struct hb_shaper_data_t {
  28 #ifdef HAVE_GRAPHITE2
  29   void *graphite2;
  30 #endif
  31 #ifdef HAVE_OT
  32   void *ot;
  33 #endif
  34   void *fallback;
  35 };
  36
  37 #define HB_SHAPERS_COUNT (sizeof(struct hb_shaper_data_t)/sizeof(void *))
  38 #define HB_SHAPER_DATA_IS_INVALID(data) ((void*)(data) == HB_SHAPER_DATA_INVALID)
  39
  40 struct hb_shaper_pair_t *
  41 hb_shapers_get(void);
  42 #endif