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Revert "[aat] Remove buffer-digest stuff"

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This reverts commit 7642366593.
This commit is contained in:
Behdad Esfahbod 2025-02-04 17:11:46 +00:00
parent 7d23e642a2
commit 359d163d25
3 changed files with 16 additions and 0 deletions
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1
src/hb-aat-layout-common.hh
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@ -65,6 +65,7 @@ struct hb_aat_apply_context_t :
const ankr *ankr_table;
const OT::GDEF *gdef_table;
const hb_sorted_vector_t<hb_aat_map_t::range_flags_t> *range_flags = nullptr;
hb_set_digest_t buffer_digest = hb_set_digest_t::full ();
const hb_set_t *left_set = nullptr;
const hb_set_t *right_set = nullptr;
hb_aat_class_cache_t *machine_class_cache = nullptr;

5
src/hb-aat-layout-kerx-table.hh
View file

@ -967,6 +967,11 @@ struct KerxTable
{
c->buffer->unsafe_to_concat ();
if (c->buffer->len < HB_AAT_BUFFER_DIGEST_THRESHOLD)
c->buffer_digest = c->buffer->digest ();
else
c->buffer_digest = hb_set_digest_t::full ();
typedef typename T::SubTable SubTable;
bool ret = false;

10
src/hb-aat-layout-morx-table.hh
View file

@ -268,6 +268,7 @@ struct ContextualSubtable
{
buffer->unsafe_to_break (mark, hb_min (buffer->idx + 1, buffer->len));
buffer->info[mark].codepoint = *replacement;
c->buffer_digest.add (*replacement);
if (has_glyph_classes)
_hb_glyph_info_set_glyph_props (&buffer->info[mark],
gdef.get_glyph_props (*replacement));
@ -297,6 +298,7 @@ struct ContextualSubtable
if (replacement)
{
buffer->info[idx].codepoint = *replacement;
c->buffer_digest.add (*replacement);
if (has_glyph_classes)
_hb_glyph_info_set_glyph_props (&buffer->info[idx],
gdef.get_glyph_props (*replacement));
@ -657,6 +659,7 @@ struct NoncontextualSubtable
if (replacement)
{
info[i].codepoint = *replacement;
c->buffer_digest.add (*replacement);
if (has_glyph_classes)
_hb_glyph_info_set_glyph_props (&info[i],
gdef.get_glyph_props (*replacement));
@ -791,6 +794,8 @@ struct InsertionSubtable
if (unlikely (!buffer->copy_glyph ())) return;
/* TODO We ignore KashidaLike setting. */
if (unlikely (!buffer->replace_glyphs (0, count, glyphs))) return;
for (unsigned int i = 0; i < count; i++)
c->buffer_digest.add (glyphs[i]);
ret = true;
if (buffer->idx < buffer->len && !before)
buffer->skip_glyph ();
@ -1368,6 +1373,11 @@ struct mortmorx
c->buffer->unsafe_to_concat ();
if (c->buffer->len < HB_AAT_BUFFER_DIGEST_THRESHOLD)
c->buffer_digest = c->buffer->digest ();
else
c->buffer_digest = hb_set_digest_t::full ();
c->set_lookup_index (0);
const Chain<Types> *chain = &firstChain;
unsigned int count = chainCount;