X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=src%2Fhb-ot-map-private.hh;h=a66049f3fcce31f945992610ae802b78ea16eaa7;hb=d8d0c480c85246a74d47dd5297019c7e39391ab0;hp=62961873c9c986fcef9f8f153cd9b7f555cd9ab5;hpb=2409d5f8d7dd8b535ce5ea29e933f7db27d33793;p=framework%2Fuifw%2Fharfbuzz.git diff --git a/src/hb-ot-map-private.hh b/src/hb-ot-map-private.hh index 6296187..a66049f 100644 --- a/src/hb-ot-map-private.hh +++ b/src/hb-ot-map-private.hh @@ -36,29 +36,49 @@ HB_BEGIN_DECLS -#define MAX_FEATURES 100 /* FIXME */ -#define MAX_LOOKUPS 1000 /* FIXME */ - static const hb_tag_t table_tags[2] = {HB_OT_TAG_GSUB, HB_OT_TAG_GPOS}; -struct hb_ot_map_t { +struct hb_ot_map_t +{ + friend struct hb_ot_map_builder_t; - private: + public: - struct feature_info_t { - hb_tag_t tag; - unsigned int seq; /* sequence#, used for stable sorting only */ - unsigned int max_value; - bool global; /* whether the feature applies value to every glyph in the buffer */ - unsigned int default_value; /* for non-global features, what should the unset glyphs take */ + typedef void (*gsub_pause_func_t) (const hb_ot_map_t *map, hb_face_t *face, hb_buffer_t *buffer, void *user_data); + typedef void (*gpos_pause_func_t) (const hb_ot_map_t *map, hb_font_t *font, hb_buffer_t *buffer, void *user_data); - static int cmp (const feature_info_t *a, const feature_info_t *b) - { return (a->tag != b->tag) ? (a->tag < b->tag ? -1 : 1) : (a->seq < b->seq ? -1 : 1); } - }; + inline hb_mask_t get_global_mask (void) const { return global_mask; } + + inline hb_mask_t get_mask (hb_tag_t tag, unsigned int *shift = NULL) const { + const feature_map_t *map = features.bsearch (&tag); + if (shift) *shift = map ? map->shift : 0; + return map ? map->mask : 0; + } + + inline hb_mask_t get_1_mask (hb_tag_t tag) const { + const feature_map_t *map = features.bsearch (&tag); + return map ? map->_1_mask : 0; + } + + inline void substitute (hb_face_t *face, hb_buffer_t *buffer) const + { apply (0, (hb_ot_map_t::apply_lookup_func_t) hb_ot_layout_substitute_lookup, face, buffer); } + inline void position (hb_font_t *font, hb_buffer_t *buffer) const + { apply (1, (hb_ot_map_t::apply_lookup_func_t) hb_ot_layout_position_lookup, font, buffer); } + + inline void finish (void) { + features.finish (); + lookups[0].finish (); + lookups[1].finish (); + pauses[0].finish (); + pauses[1].finish (); + } + + private: struct feature_map_t { hb_tag_t tag; /* should be first for our bsearch to work */ - unsigned int index[2]; /* GSUB, GPOS */ + unsigned int index[2]; /* GSUB/GPOS */ + unsigned int stage[2]; /* GSUB/GPOS */ unsigned int shift; hb_mask_t mask; hb_mask_t _1_mask; /* mask for value=1, for quick access */ @@ -75,69 +95,91 @@ struct hb_ot_map_t { { return a->index < b->index ? -1 : a->index > b->index ? 1 : 0; } }; + typedef void (*pause_func_t) (const hb_ot_map_t *map, void *face_or_font, hb_buffer_t *buffer, void *user_data); + typedef struct { + pause_func_t func; + void *user_data; + } pause_callback_t; + + struct pause_map_t { + unsigned int num_lookups; /* Cumulative */ + pause_callback_t callback; + }; + + typedef hb_bool_t (*apply_lookup_func_t) (void *face_or_font, + hb_buffer_t *buffer, + unsigned int lookup_index, + hb_mask_t mask); + HB_INTERNAL void add_lookups (hb_face_t *face, unsigned int table_index, unsigned int feature_index, hb_mask_t mask); + HB_INTERNAL void apply (unsigned int table_index, + hb_ot_map_t::apply_lookup_func_t apply_lookup_func, + void *face_or_font, + hb_buffer_t *buffer) const; - public: + hb_mask_t global_mask; - hb_ot_map_t (void) : feature_count (0) {} + hb_prealloced_array_t features; + hb_prealloced_array_t lookups[2]; /* GSUB/GPOS */ + hb_prealloced_array_t pauses[2]; /* GSUB/GPOS */ +}; - void add_feature (hb_tag_t tag, unsigned int value, bool global) - { - feature_info_t *info = &feature_infos[feature_count++]; - info->tag = tag; - info->seq = feature_count; - info->max_value = value; - info->global = global; - info->default_value = global ? value : 0; - } + +struct hb_ot_map_builder_t +{ + public: + + HB_INTERNAL void add_feature (hb_tag_t tag, unsigned int value, bool global); inline void add_bool_feature (hb_tag_t tag, bool global = true) { add_feature (tag, 1, global); } - HB_INTERNAL void compile (hb_face_t *face, - const hb_segment_properties_t *props); - - inline hb_mask_t get_global_mask (void) const { return global_mask; } + inline void add_gsub_pause (hb_ot_map_t::gsub_pause_func_t pause_func, void *user_data) + { add_pause (0, (hb_ot_map_t::pause_func_t) pause_func, user_data); } + inline void add_gpos_pause (hb_ot_map_t::gpos_pause_func_t pause_func, void *user_data) + { add_pause (1, (hb_ot_map_t::pause_func_t) pause_func, user_data); } - inline hb_mask_t get_mask (hb_tag_t tag, unsigned int *shift = NULL) const { - const feature_map_t *map = (const feature_map_t *) bsearch (&tag, feature_maps, feature_count, sizeof (feature_maps[0]), (hb_compare_func_t) feature_map_t::cmp); - if (shift) *shift = map ? map->shift : 0; - return map ? map->mask : 0; - } + HB_INTERNAL void compile (hb_face_t *face, + const hb_segment_properties_t *props, + struct hb_ot_map_t &m); - inline hb_mask_t get_1_mask (hb_tag_t tag) const { - const feature_map_t *map = (const feature_map_t *) bsearch (&tag, feature_maps, feature_count, sizeof (feature_maps[0]), (hb_compare_func_t) feature_map_t::cmp); - return map ? map->_1_mask : 0; + inline void finish (void) { + feature_infos.finish (); + pauses[0].finish (); + pauses[1].finish (); } - inline void substitute (hb_face_t *face, hb_buffer_t *buffer) const { - for (unsigned int i = 0; i < lookup_count[0]; i++) - hb_ot_layout_substitute_lookup (face, buffer, lookup_maps[0][i].index, lookup_maps[0][i].mask); - } + private: - inline void position (hb_font_t *font, hb_face_t *face, hb_buffer_t *buffer) const { - for (unsigned int i = 0; i < lookup_count[1]; i++) - hb_ot_layout_position_lookup (font, face, buffer, lookup_maps[1][i].index, lookup_maps[1][i].mask); - } + struct feature_info_t { + hb_tag_t tag; + unsigned int seq; /* sequence#, used for stable sorting only */ + unsigned int max_value; + bool global; /* whether the feature applies value to every glyph in the buffer */ + unsigned int default_value; /* for non-global features, what should the unset glyphs take */ + unsigned int stage[2]; /* GSUB/GPOS */ - private: + static int cmp (const feature_info_t *a, const feature_info_t *b) + { return (a->tag != b->tag) ? (a->tag < b->tag ? -1 : 1) : (a->seq < b->seq ? -1 : 1); } + }; - hb_mask_t global_mask; + struct pause_info_t { + unsigned int stage; + hb_ot_map_t::pause_callback_t callback; + }; - unsigned int feature_count; - feature_info_t feature_infos[MAX_FEATURES]; /* used before compile() only */ - feature_map_t feature_maps[MAX_FEATURES]; + HB_INTERNAL void add_pause (unsigned int table_index, hb_ot_map_t::pause_func_t pause_func, void *user_data); - lookup_map_t lookup_maps[2][MAX_LOOKUPS]; /* GSUB/GPOS */ - unsigned int lookup_count[2]; + unsigned int current_stage[2]; /* GSUB/GPOS */ + hb_prealloced_array_t feature_infos; + hb_prealloced_array_t pauses[2]; /* GSUB/GPOS */ }; - HB_END_DECLS #endif /* HB_OT_MAP_PRIVATE_HH */