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dwrite: Include required feature when collecting lookups. 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov 2020-06-02 11:48:51 +03:00 committed by Alexandre Julliard
parent aa222d7df8
commit 15baea930a
1 changed files with 13 additions and 0 deletions
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13
dlls/dwrite/opentype.c
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@ -4405,6 +4405,7 @@ static void opentype_layout_collect_lookups(struct scriptshaping_context *contex
{
unsigned int last_num_lookups = 0, stage, script_feature_count = 0;
UINT16 total_feature_count, total_lookup_count;
struct shaping_feature required_feature = { 0 };
const struct ot_feature_list *feature_list;
const struct ot_langsys *langsys = NULL;
struct shaping_feature *feature;
@ -4455,6 +4456,12 @@ static void opentype_layout_collect_lookups(struct scriptshaping_context *contex
if (!feature_list)
return;
/* Required feature. */
required_feature.index = langsys ? GET_BE_WORD(langsys->required_feature_index) : 0xffff;
if (required_feature.index < total_feature_count)
required_feature.tag = feature_list->features[required_feature.index].tag;
required_feature.mask = global_bit_mask;
context->global_mask = global_bit_mask;
next_bit = global_bit_shift + 1;
for (i = 0; i < features->count; ++i)
@ -4474,6 +4481,9 @@ static void opentype_layout_collect_lookups(struct scriptshaping_context *contex
if (!feature->max_value || next_bit + bits_needed > 8 * sizeof (feature->mask))
continue;
if (required_feature.tag == feature->tag)
required_feature.stage = feature->stage;
for (j = 0; j < script_feature_count; ++j)
{
feature_index = GET_BE_WORD(langsys->feature_index[j]);
@ -4517,6 +4527,9 @@ static void opentype_layout_collect_lookups(struct scriptshaping_context *contex
for (stage = 0; stage <= features->stage; ++stage)
{
if (required_feature.index != 0xffff && required_feature.stage == stage)
opentype_layout_add_lookups(feature_list, total_lookup_count, table, &required_feature, lookups);
for (i = 0; i < features->count; ++i)
{
if (features->features[i].stage == stage)