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[config] Add HB_NO_OT_FONT_CMAP_CACHE

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Part of https://github.com/harfbuzz/harfbuzz/issues/4220
This commit is contained in:
Behdad Esfahbod 2023-05-05 07:03:25 -06:00
parent 0e9ebf1062
commit 8831ba7f55
2 changed files with 20 additions and 3 deletions
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1
src/hb-config.hh
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@ -190,6 +190,7 @@
#ifdef HB_MINIMIZE_MEMORY_USAGE
#define HB_NO_GDEF_CACHE
#define HB_NO_OT_LAYOUT_LOOKUP_CACHE
#define HB_NO_OT_FONT_CMAP_CACHE
#endif
#ifdef HB_OPTIMIZE_SIZE

22
src/hb-ot-font.cc
View file

@ -70,7 +70,9 @@ struct hb_ot_font_t
{
const hb_ot_face_t *ot_face;
#ifndef HB_NO_OT_FONT_CMAP_CACHE
hb_ot_font_cmap_cache_t *cmap_cache;
#endif
/* h_advance caching */
mutable hb_atomic_int_t cached_coords_serial;
@ -86,6 +88,7 @@ _hb_ot_font_create (hb_font_t *font)
ot_font->ot_face = &font->face->table;
#ifndef HB_NO_OT_FONT_CMAP_CACHE
// retry:
auto *cmap_cache = (hb_ot_font_cmap_cache_t *) hb_face_get_user_data (font->face,
&hb_ot_font_cmap_cache_user_data_key);
@ -112,6 +115,7 @@ _hb_ot_font_create (hb_font_t *font)
}
out:
ot_font->cmap_cache = cmap_cache;
#endif
return ot_font;
}
@ -136,7 +140,11 @@ hb_ot_get_nominal_glyph (hb_font_t *font HB_UNUSED,
{
const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
const hb_ot_face_t *ot_face = ot_font->ot_face;
return ot_face->cmap->get_nominal_glyph (unicode, glyph, ot_font->cmap_cache);
hb_ot_font_cmap_cache_t *cmap_cache = nullptr;
#ifndef HB_NO_OT_FONT_CMAP_CACHE
cmap_cache = ot_font->cmap_cache;
#endif
return ot_face->cmap->get_nominal_glyph (unicode, glyph, cmap_cache);
}
static unsigned int
@ -151,10 +159,14 @@ hb_ot_get_nominal_glyphs (hb_font_t *font HB_UNUSED,
{
const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
const hb_ot_face_t *ot_face = ot_font->ot_face;
hb_ot_font_cmap_cache_t *cmap_cache = nullptr;
#ifndef HB_NO_OT_FONT_CMAP_CACHE
cmap_cache = ot_font->cmap_cache;
#endif
return ot_face->cmap->get_nominal_glyphs (count,
first_unicode, unicode_stride,
first_glyph, glyph_stride,
ot_font->cmap_cache);
cmap_cache);
}
static hb_bool_t
@ -167,9 +179,13 @@ hb_ot_get_variation_glyph (hb_font_t *font HB_UNUSED,
{
const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
const hb_ot_face_t *ot_face = ot_font->ot_face;
hb_ot_font_cmap_cache_t *cmap_cache = nullptr;
#ifndef HB_NO_OT_FONT_CMAP_CACHE
cmap_cache = ot_font->cmap_cache;
#endif
return ot_face->cmap->get_variation_glyph (unicode,
variation_selector, glyph,
ot_font->cmap_cache);
cmap_cache);
}
static void