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[OTLayout] Minor refactoring

This commit is contained in:
Behdad Esfahbod 2013-05-02 15:16:59 -04:00
parent ea86efa486
commit 3276c354da
2 changed files with 29 additions and 21 deletions
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4
src/hb-ot-map-private.hh
View File

@ -118,6 +118,10 @@ struct hb_ot_map_t
}
HB_INTERNAL void collect_lookups (unsigned int table_index, hb_set_t *lookups) const;
HB_INTERNAL inline void apply (unsigned int table_index,
const struct hb_ot_shape_plan_t *plan,
hb_font_t *font,
hb_buffer_t *buffer) const;
HB_INTERNAL void substitute (const struct hb_ot_shape_plan_t *plan, hb_font_t *font, hb_buffer_t *buffer) const;
HB_INTERNAL void position (const struct hb_ot_shape_plan_t *plan, hb_font_t *font, hb_buffer_t *buffer) const;

42
src/hb-ot-map.cc
View File

@ -102,20 +102,30 @@ void hb_ot_map_builder_t::add_feature (hb_tag_t tag, unsigned int value,
info->stage[1] = current_stage[1];
}
/* Keep the next two functions in sync. */
void hb_ot_map_t::substitute (const hb_ot_shape_plan_t *plan, hb_font_t *font, hb_buffer_t *buffer) const
inline void hb_ot_map_t::apply (unsigned int table_index,
const hb_ot_shape_plan_t *plan,
hb_font_t *font,
hb_buffer_t *buffer) const
{
const unsigned int table_index = 0;
unsigned int i = 0;
for (unsigned int stage_index = 0; stage_index < stages[table_index].len; stage_index++) {
const stage_map_t *stage = &stages[table_index][stage_index];
for (; i < stage->last_lookup; i++)
hb_ot_layout_substitute_lookup (font, buffer,
lookups[table_index][i].index,
switch (table_index)
{
case 0:
hb_ot_layout_substitute_lookup (font, buffer, lookups[table_index][i].index,
lookups[table_index][i].mask,
lookups[table_index][i].auto_zwj);
break;
case 1:
hb_ot_layout_position_lookup (font, buffer, lookups[table_index][i].index,
lookups[table_index][i].mask,
lookups[table_index][i].auto_zwj);
break;
}
if (stage->pause_func)
{
@ -125,23 +135,17 @@ void hb_ot_map_t::substitute (const hb_ot_shape_plan_t *plan, hb_font_t *font, h
}
}
void hb_ot_map_t::substitute (const hb_ot_shape_plan_t *plan, hb_font_t *font, hb_buffer_t *buffer) const
{
apply (0, plan, font, buffer);
}
void hb_ot_map_t::position (const hb_ot_shape_plan_t *plan, hb_font_t *font, hb_buffer_t *buffer) const
{
const unsigned int table_index = 1;
unsigned int i = 0;
for (unsigned int stage_index = 0; stage_index < stages[table_index].len; stage_index++) {
const stage_map_t *stage = &stages[table_index][stage_index];
for (; i < stage->last_lookup; i++)
hb_ot_layout_position_lookup (font, buffer, lookups[table_index][i].index,
lookups[table_index][i].mask,
lookups[table_index][i].auto_zwj);
if (stage->pause_func)
stage->pause_func (plan, font, buffer);
}
apply (1, plan, font, buffer);
}
void hb_ot_map_t::collect_lookups (unsigned int table_index, hb_set_t *lookups_out) const
{
for (unsigned int i = 0; i < lookups[table_index].len; i++)