From: Behdad Esfahbod Date: Fri, 8 Jul 2011 01:22:08 +0000 (-0400) Subject: Refactor some code common to GSUB and GPOS X-Git-Tag: submit/2.0alpha-wayland/20121130.004132~9^2~83 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d8d0c480c85246a74d47dd5297019c7e39391ab0;hp=b70c96dbe41d6512b80fe3d966a1942e1ef64a4b;p=profile%2Fivi%2Forg.tizen.video-player.git Refactor some code common to GSUB and GPOS --- diff --git a/src/hb-ot-map-private.hh b/src/hb-ot-map-private.hh index 9a44bd5..a66049f 100644 --- a/src/hb-ot-map-private.hh +++ b/src/hb-ot-map-private.hh @@ -60,8 +60,10 @@ struct hb_ot_map_t return map ? map->_1_mask : 0; } - HB_INTERNAL void substitute (hb_face_t *face, hb_buffer_t *buffer) const; - HB_INTERNAL void position (hb_font_t *font, hb_buffer_t *buffer) const; + 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 (); @@ -93,11 +95,7 @@ struct hb_ot_map_t { return a->index < b->index ? -1 : a->index > b->index ? 1 : 0; } }; - typedef union { - void *p; - gsub_pause_func_t gsub; - gpos_pause_func_t gpos; - } pause_func_t; + 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; @@ -108,11 +106,20 @@ struct hb_ot_map_t 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; hb_mask_t global_mask; @@ -131,8 +138,10 @@ struct hb_ot_map_builder_t inline void add_bool_feature (hb_tag_t tag, bool global = true) { add_feature (tag, 1, global); } - HB_INTERNAL void add_gsub_pause (hb_ot_map_t::gsub_pause_func_t pause_func, void *user_data); - HB_INTERNAL void add_gpos_pause (hb_ot_map_t::gpos_pause_func_t pause_func, void *user_data); + 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); } HB_INTERNAL void compile (hb_face_t *face, const hb_segment_properties_t *props, @@ -163,6 +172,8 @@ struct hb_ot_map_builder_t hb_ot_map_t::pause_callback_t callback; }; + HB_INTERNAL void add_pause (unsigned int table_index, hb_ot_map_t::pause_func_t pause_func, void *user_data); + unsigned int current_stage[2]; /* GSUB/GPOS */ hb_prealloced_array_t feature_infos; hb_prealloced_array_t pauses[2]; /* GSUB/GPOS */ diff --git a/src/hb-ot-map.cc b/src/hb-ot-map.cc index 782c496..9bd4e0f 100644 --- a/src/hb-ot-map.cc +++ b/src/hb-ot-map.cc @@ -77,67 +77,33 @@ void hb_ot_map_builder_t::add_feature (hb_tag_t tag, unsigned int value, bool gl info->stage[1] = current_stage[1]; } - -void hb_ot_map_t::substitute (hb_face_t *face, hb_buffer_t *buffer) const { - unsigned int table_index = 0; - unsigned int i = 0; - - for (unsigned int pause_index = 0; pause_index < pauses[table_index].len; pause_index++) { - const pause_map_t *pause = &pauses[table_index][pause_index]; - for (; i < pause->num_lookups; i++) - hb_ot_layout_substitute_lookup (face, buffer, lookups[table_index][i].index, lookups[table_index][i].mask); - - pause->callback.func.gsub (this, face, buffer, pause->callback.user_data); - } - - for (; i < lookups[table_index].len; i++) - hb_ot_layout_substitute_lookup (face, buffer, lookups[table_index][i].index, lookups[table_index][i].mask); -} - -void hb_ot_map_t::position (hb_font_t *font, hb_buffer_t *buffer) const { - unsigned int table_index = 1; +void hb_ot_map_t::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 +{ unsigned int i = 0; for (unsigned int pause_index = 0; pause_index < pauses[table_index].len; pause_index++) { const pause_map_t *pause = &pauses[table_index][pause_index]; for (; i < pause->num_lookups; i++) - hb_ot_layout_position_lookup (font, buffer, lookups[table_index][i].index, lookups[table_index][i].mask); + apply_lookup_func (face_or_font, buffer, lookups[table_index][i].index, lookups[table_index][i].mask); - pause->callback.func.gpos (this, font, buffer, pause->callback.user_data); + pause->callback.func (this, face_or_font, buffer, pause->callback.user_data); } for (; i < lookups[table_index].len; i++) - hb_ot_layout_position_lookup (font, buffer, lookups[table_index][i].index, lookups[table_index][i].mask); + apply_lookup_func (face_or_font, buffer, lookups[table_index][i].index, lookups[table_index][i].mask); } -/* TODO refactor the following two functions */ - -void hb_ot_map_builder_t::add_gsub_pause (hb_ot_map_t::gsub_pause_func_t pause_func, void *user_data) +void hb_ot_map_builder_t::add_pause (unsigned int table_index, hb_ot_map_t::pause_func_t pause_func, void *user_data) { - unsigned int table_index = 0; - - if (pause_func) { - pause_info_t *p = pauses[table_index].push (); - if (likely (p)) { - p->stage = current_stage[table_index]; - p->callback.func.gsub = pause_func; - p->callback.user_data = user_data; - } - } - - current_stage[table_index]++; -} - -void hb_ot_map_builder_t::add_gpos_pause (hb_ot_map_t::gpos_pause_func_t pause_func, void *user_data) -{ - unsigned int table_index = 1; - if (pause_func) { pause_info_t *p = pauses[table_index].push (); if (likely (p)) { p->stage = current_stage[table_index]; - p->callback.func.gpos = pause_func; + p->callback.func = pause_func; p->callback.user_data = user_data; } }