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[hmtx] Specialize var_table

This commit is contained in:
Behdad Esfahbod 2022-06-30 14:03:07 -06:00
parent 031fd20a5a
commit eee29f7327
2 changed files with 7 additions and 7 deletions
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4
src/hb-ot-font.cc
View File

@ -151,7 +151,7 @@ hb_ot_get_glyph_h_advances (hb_font_t* font, void* font_data,
const OT::hmtx_accelerator_t &hmtx = *ot_face->hmtx;
#ifndef HB_NO_VAR
const OT::HVARVVAR &HVAR = *hmtx.var_table;
const OT::HVAR &HVAR = *hmtx.var_table;
const OT::VariationStore &varStore = &HVAR + HVAR.varStore;
OT::VariationStore::cache_t *varStore_cache = font->num_coords * count >= 128 ? varStore.create_cache () : nullptr;
@ -242,7 +242,7 @@ hb_ot_get_glyph_v_advances (hb_font_t* font, void* font_data,
if (vmtx.has_data ())
{
#ifndef HB_NO_VAR
const OT::HVARVVAR &VVAR = *vmtx.var_table;
const OT::VVAR &VVAR = *vmtx.var_table;
const OT::VariationStore &varStore = &VVAR + VVAR.varStore;
OT::VariationStore::cache_t *varStore_cache = font->num_coords ? varStore.create_cache () : nullptr;
#else

10
src/hb-ot-hmtx-table.hh
View File

@ -62,7 +62,7 @@ struct LongMetric
};
template <typename T, typename H>
template <typename T/*Data table type*/, typename H/*Header table type*/, typename V/*Var table type*/>
struct hmtxvmtx
{
bool sanitize (hb_sanitize_context_t *c HB_UNUSED) const
@ -173,7 +173,7 @@ struct hmtxvmtx
accelerator_t (hb_face_t *face)
{
table = hb_sanitize_context_t ().reference_table<hmtxvmtx> (face, T::tableTag);
var_table = hb_sanitize_context_t ().reference_table<HVARVVAR> (face, T::variationsTag);
var_table = hb_sanitize_context_t ().reference_table<V> (face, T::variationsTag);
default_advance = T::is_horizontal ? hb_face_get_upem (face) / 2 : hb_face_get_upem (face);
@ -313,7 +313,7 @@ struct hmtxvmtx
public:
hb_blob_ptr_t<hmtxvmtx> table;
hb_blob_ptr_t<HVARVVAR> var_table;
hb_blob_ptr_t<V> var_table;
};
protected:
@ -346,12 +346,12 @@ struct hmtxvmtx
DEFINE_SIZE_ARRAY (0, longMetricZ);
};
struct hmtx : hmtxvmtx<hmtx, hhea> {
struct hmtx : hmtxvmtx<hmtx, hhea, HVAR> {
static constexpr hb_tag_t tableTag = HB_OT_TAG_hmtx;
static constexpr hb_tag_t variationsTag = HB_OT_TAG_HVAR;
static constexpr bool is_horizontal = true;
};
struct vmtx : hmtxvmtx<vmtx, vhea> {
struct vmtx : hmtxvmtx<vmtx, vhea, VVAR> {
static constexpr hb_tag_t tableTag = HB_OT_TAG_vmtx;
static constexpr hb_tag_t variationsTag = HB_OT_TAG_VVAR;
static constexpr bool is_horizontal = false;