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-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-src/src/hb-subset-glyf.cc38
1 files changed, 21 insertions, 17 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-subset-glyf.cc b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-subset-glyf.cc
index 0b84c856c2b..c8fa39be807 100644
--- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-subset-glyf.cc
+++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-subset-glyf.cc
@@ -32,20 +32,25 @@
static bool
_calculate_glyf_and_loca_prime_size (const OT::glyf::accelerator_t &glyf,
- hb_prealloced_array_t<hb_codepoint_t> &glyph_ids,
+ hb_vector_t<hb_codepoint_t> &glyph_ids,
hb_bool_t drop_hints,
bool *use_short_loca /* OUT */,
unsigned int *glyf_size /* OUT */,
unsigned int *loca_size /* OUT */,
- hb_prealloced_array_t<unsigned int> *instruction_ranges /* OUT */)
+ hb_vector_t<unsigned int> *instruction_ranges /* OUT */)
{
unsigned int total = 0;
for (unsigned int i = 0; i < glyph_ids.len; i++)
{
hb_codepoint_t next_glyph = glyph_ids[i];
- unsigned int *instruction_start = instruction_ranges->push();
- unsigned int *instruction_end = instruction_ranges->push();
+ if (!instruction_ranges->resize (instruction_ranges->len + 2))
+ {
+ DEBUG_MSG(SUBSET, nullptr, "Failed to resize instruction_ranges.");
+ return false;
+ }
+ unsigned int *instruction_start = &(*instruction_ranges)[instruction_ranges->len - 2];
*instruction_start = 0;
+ unsigned int *instruction_end = &(*instruction_ranges)[instruction_ranges->len - 1];
*instruction_end = 0;
unsigned int start_offset, end_offset;
@@ -116,7 +121,6 @@ static void
_update_components (hb_subset_plan_t * plan,
char * glyph_start,
unsigned int length)
-
{
OT::glyf::CompositeGlyphHeader::Iterator iterator;
if (OT::glyf::CompositeGlyphHeader::get_iterator (glyph_start,
@@ -126,9 +130,8 @@ _update_components (hb_subset_plan_t * plan,
do
{
hb_codepoint_t new_gid;
- if (!hb_subset_plan_new_gid_for_old_id (plan,
- iterator.current->glyphIndex,
- &new_gid))
+ if (!plan->new_gid_for_old_gid (iterator.current->glyphIndex,
+ &new_gid))
continue;
((OT::glyf::CompositeGlyphHeader *) iterator.current)->glyphIndex.set (new_gid);
@@ -155,13 +158,13 @@ _write_glyf_and_loca_prime (hb_subset_plan_t *plan,
const OT::glyf::accelerator_t &glyf,
const char *glyf_data,
bool use_short_loca,
- hb_prealloced_array_t<unsigned int> &instruction_ranges,
+ hb_vector_t<unsigned int> &instruction_ranges,
unsigned int glyf_prime_size,
char *glyf_prime_data /* OUT */,
unsigned int loca_prime_size,
char *loca_prime_data /* OUT */)
{
- hb_prealloced_array_t<hb_codepoint_t> &glyph_ids = plan->gids_to_retain_sorted;
+ hb_vector_t<hb_codepoint_t> &glyph_ids = plan->glyphs;
char *glyf_prime_data_next = glyf_prime_data;
bool success = true;
@@ -171,11 +174,11 @@ _write_glyf_and_loca_prime (hb_subset_plan_t *plan,
if (unlikely (!(glyf.get_offsets (glyph_ids[i], &start_offset, &end_offset)
&& glyf.remove_padding(start_offset, &end_offset))))
end_offset = start_offset = 0;
+
unsigned int instruction_start = instruction_ranges[i * 2];
unsigned int instruction_end = instruction_ranges[i * 2 + 1];
int length = end_offset - start_offset - (instruction_end - instruction_start);
- length += length % 2;
if (glyf_prime_data_next + length > glyf_prime_data + glyf_prime_size)
{
@@ -209,7 +212,8 @@ _write_glyf_and_loca_prime (hb_subset_plan_t *plan,
loca_prime_size);
_update_components (plan, glyf_prime_data_next, length);
- glyf_prime_data_next += length;
+ // TODO: don't align to two bytes if using long loca.
+ glyf_prime_data_next += length + (length % 2); // Align to 2 bytes for short loca.
}
success = success && _write_loca_entry (glyph_ids.len,
@@ -229,11 +233,11 @@ _hb_subset_glyf_and_loca (const OT::glyf::accelerator_t &glyf,
hb_blob_t **loca_prime /* OUT */)
{
// TODO(grieger): Sanity check allocation size for the new table.
- hb_prealloced_array_t<hb_codepoint_t> &glyphs_to_retain = plan->gids_to_retain_sorted;
+ hb_vector_t<hb_codepoint_t> &glyphs_to_retain = plan->glyphs;
unsigned int glyf_prime_size;
unsigned int loca_prime_size;
- hb_prealloced_array_t<unsigned int> instruction_ranges;
+ hb_vector_t<unsigned int> instruction_ranges;
instruction_ranges.init();
if (unlikely (!_calculate_glyf_and_loca_prime_size (glyf,
@@ -243,7 +247,7 @@ _hb_subset_glyf_and_loca (const OT::glyf::accelerator_t &glyf,
&glyf_prime_size,
&loca_prime_size,
&instruction_ranges))) {
- instruction_ranges.finish();
+ instruction_ranges.fini();
return false;
}
@@ -256,10 +260,10 @@ _hb_subset_glyf_and_loca (const OT::glyf::accelerator_t &glyf,
loca_prime_size, loca_prime_data))) {
free (glyf_prime_data);
free (loca_prime_data);
- instruction_ranges.finish();
+ instruction_ranges.fini();
return false;
}
- instruction_ranges.finish();
+ instruction_ranges.fini();
*glyf_prime = hb_blob_create (glyf_prime_data,
glyf_prime_size,