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[subset-cff] Micro-optimize drop_hints_in_str

This commit is contained in:
Behdad Esfahbod 2022-11-27 14:54:39 -07:00
parent 3860326688
commit f51a624e67
1 changed files with 12 additions and 10 deletions
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22
src/hb-subset-cff-common.hh
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@ -816,20 +816,22 @@ struct subr_subsetter_t
{
bool seen_hint = false;
for (unsigned int pos = 0; pos < str.values.length; pos++)
unsigned count = str.values.length;
auto *values = str.values.arrayZ;
for (unsigned int pos = 0; pos < count; pos++)
{
bool has_hint = false;
switch (str.values[pos].op)
switch (values[pos].op)
{
case OpCode_callsubr:
has_hint = drop_hints_in_subr (str, pos,
*param.parsed_local_subrs, str.values[pos].subr_num,
*param.parsed_local_subrs, values[pos].subr_num,
param, drop);
break;
case OpCode_callgsubr:
has_hint = drop_hints_in_subr (str, pos,
*param.parsed_global_subrs, str.values[pos].subr_num,
*param.parsed_global_subrs, values[pos].subr_num,
param, drop);
break;
@ -843,7 +845,7 @@ struct subr_subsetter_t
case OpCode_cntrmask:
if (drop.seen_moveto)
{
str.values[pos].set_drop ();
values[pos].set_drop ();
break;
}
HB_FALLTHROUGH;
@ -853,13 +855,13 @@ struct subr_subsetter_t
case OpCode_hstem:
case OpCode_vstem:
has_hint = true;
str.values[pos].set_drop ();
values[pos].set_drop ();
if (str.at_end (pos))
drop.ends_in_hint = true;
break;
case OpCode_dotsection:
str.values[pos].set_drop ();
values[pos].set_drop ();
break;
default:
@ -870,7 +872,7 @@ struct subr_subsetter_t
{
for (int i = pos - 1; i >= 0; i--)
{
parsed_cs_op_t &csop = str.values[(unsigned)i];
parsed_cs_op_t &csop = values[(unsigned)i];
if (csop.for_drop ())
break;
csop.set_drop ();
@ -886,9 +888,9 @@ struct subr_subsetter_t
* only (usually one) hintmask operator, then calls to this subr can be dropped.
*/
drop.all_dropped = true;
for (unsigned int pos = 0; pos < str.values.length; pos++)
for (unsigned int pos = 0; pos < count; pos++)
{
parsed_cs_op_t &csop = str.values[pos];
parsed_cs_op_t &csop = values[pos];
if (csop.op == OpCode_return)
break;
if (!csop.for_drop ())