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Simplify mask allocation

This commit is contained in:
Behdad Esfahbod 2010-05-28 20:37:06 -04:00
parent 0e235d0fc9
commit e04685ee7b
1 changed files with 20 additions and 28 deletions
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46
src/hb-ot-shape.cc
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@ -136,35 +136,20 @@ struct hb_mask_allocator_t {
hb_mask_allocator_t (hb_face_t *face,
hb_tag_t table_tag,
unsigned int script_index,
unsigned int language_index,
const hb_feature_t *features,
unsigned int num_features) :
unsigned int language_index) :
face (face),
table_tag (table_tag),
script_index (script_index),
language_index (language_index),
count (0)
{
if (!num_features)
return;
count (0) {}
/* Add features in reverse order */
for (unsigned int i = num_features - 1, count = 0; count < num_features; i--, count++) {
const hb_feature_t *feature = &features[i];
feature_info_t *info = &infos[count];
info->tag = feature->tag;
info->value = feature->value;
info->global = (feature->start == 0 && feature->end == (unsigned int) -1);
}
}
void add_binary_feature (hb_tag_t tag,
void add_feature (hb_tag_t tag,
unsigned int value,
bool global)
{
feature_info_t *info = &infos[count++];
info->tag = tag;
info->value = 1;
info->value = value;
info->global = global;
}
@ -278,17 +263,17 @@ setup_lookups (hb_face_t *face,
add_feature (face, table_tag, feature_index, 1, lookups, num_lookups, room_lookups);
hb_mask_allocator_t allocator (face, table_tag, script_index, language_index, features, num_features);
hb_mask_allocator_t allocator (face, table_tag, script_index, language_index);
switch (original_direction) {
case HB_DIRECTION_LTR:
allocator.add_binary_feature (HB_TAG ('l','t','r','a'), true);
allocator.add_binary_feature (HB_TAG ('l','t','r','m'), true);
allocator.add_feature (HB_TAG ('l','t','r','a'), 1, true);
allocator.add_feature (HB_TAG ('l','t','r','m'), 1, true);
break;
case HB_DIRECTION_RTL:
allocator.add_binary_feature (HB_TAG ('r','t','l','a'), true);
//allocator.add_binary_feature (HB_TAG ('r','t','l','m'), false);
allocator.add_binary_feature (HB_TAG ('r','t','l','m'), true);
allocator.add_feature (HB_TAG ('r','t','l','a'), 1, true);
//allocator.add_feature (HB_TAG ('r','t','l','m'), false);
allocator.add_feature (HB_TAG ('r','t','l','m'), 1, true);
break;
case HB_DIRECTION_TTB:
case HB_DIRECTION_BTT:
@ -297,7 +282,14 @@ setup_lookups (hb_face_t *face,
}
for (i = 0; i < ARRAY_LENGTH (default_features); i++)
allocator.add_binary_feature (default_features[i], true);
allocator.add_feature (default_features[i], 1, true);
/* XXX complex-shaper features go here */
for (unsigned int i = 0; i < num_features; i++) {
const hb_feature_t *feature = &features[i];
allocator.add_feature (feature->tag, feature->value, (feature->start == 0 && feature->end == (unsigned int) -1));
}
/* Compile features */