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Apply user features to ranges!

This commit is contained in:
Behdad Esfahbod 2010-05-20 15:40:12 +01:00
parent 9b60233385
commit 6774463883
1 changed files with 22 additions and 1 deletions
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23
src/hb-ot-shape.cc
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@ -116,12 +116,33 @@ setup_lookups (hb_face_t *face,
add_feature (face, table_tag, feature_index, 1, lookups, num_lookups, room_lookups);
}
/* Clear buffer masks. */
unsigned int count = buffer->len;
for (unsigned int i = 0; i < count; i++)
buffer->info[i].mask = 1;
unsigned int last_bit_used = 1;
for (i = 0; i < num_features; i++)
{
unsigned int bits_needed = _hb_bit_storage (features[i].value);
if (!bits_needed)
continue;
unsigned int mask = (1 << (last_bit_used + bits_needed)) - (1 << last_bit_used);
unsigned int value = features[i].value << last_bit_used;
last_bit_used += bits_needed;
if (hb_ot_layout_language_find_feature (face, table_tag, script_index, language_index,
features[i].tag,
&feature_index))
add_feature (face, table_tag, feature_index, 1, lookups, num_lookups, room_lookups);
add_feature (face, table_tag, feature_index, mask, lookups, num_lookups, room_lookups);
/* Turn mask on in the buffer, the über-slow way! */
unsigned int count = buffer->len;
for (unsigned int i = 0; i < count; i++) {
unsigned int cluster = buffer->info[i].cluster;
if (features[i].start <= cluster && cluster < features[i].end)
buffer->info[i].mask |= value;
}
}
qsort (lookups, *num_lookups, sizeof (lookups[0]), cmp_lookups);