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[coretext-aat] Also pass through CoreText if font has kerx table 

SFNSText has kerx table which apparently is applied.
This commit is contained in:
Behdad Esfahbod 2017-10-11 15:02:48 +02:00
parent 296d0134c9
commit 84686bf4c7
2 changed files with 14 additions and 15 deletions
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28
src/hb-coretext.cc
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@ -1249,22 +1249,20 @@ struct hb_coretext_aat_shaper_face_data_t {};
hb_coretext_aat_shaper_face_data_t *
_hb_coretext_aat_shaper_face_data_create (hb_face_t *face)
{
hb_blob_t *mort_blob = face->reference_table (HB_CORETEXT_TAG_MORT);
/* Umm, we just reference the table to check whether it exists.
* Maybe add better API for this? */
if (!hb_blob_get_length (mort_blob))
{
hb_blob_destroy (mort_blob);
mort_blob = face->reference_table (HB_CORETEXT_TAG_MORX);
if (!hb_blob_get_length (mort_blob))
{
hb_blob_destroy (mort_blob);
return NULL;
}
}
hb_blob_destroy (mort_blob);
static const hb_tag_t tags[] = {HB_CORETEXT_TAG_MORX, HB_CORETEXT_TAG_MORT, HB_CORETEXT_TAG_KERX};
return hb_coretext_shaper_face_data_ensure (face) ? (hb_coretext_aat_shaper_face_data_t *) HB_SHAPER_DATA_SUCCEEDED : NULL;
for (unsigned int i = 0; i < ARRAY_LENGTH (tags); i++)
{
hb_blob_t *blob = face->reference_table (tags[i]);
if (hb_blob_get_length (blob))
{
hb_blob_destroy (blob);
return hb_coretext_shaper_face_data_ensure (face) ? (hb_coretext_aat_shaper_face_data_t *) HB_SHAPER_DATA_SUCCEEDED : NULL;
}
hb_blob_destroy (blob);
}
return NULL;
}
void

1
src/hb-coretext.h
View File

@ -42,6 +42,7 @@ HB_BEGIN_DECLS
#define HB_CORETEXT_TAG_MORT HB_TAG('m','o','r','t')
#define HB_CORETEXT_TAG_MORX HB_TAG('m','o','r','x')
#define HB_CORETEXT_TAG_KERX HB_TAG('k','e','r','x')
HB_EXTERN hb_face_t *