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[glyf] Avoid a copy of points in shape fetching for simple glyphs 

Matches performance with freetype now.
This commit is contained in:
Behdad Esfahbod 2022-06-26 16:09:32 -06:00
parent 7eac779abf
commit abb433d0f4
1 changed files with 6 additions and 3 deletions
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9
src/OT/glyf/Glyph.hh
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@ -82,7 +82,9 @@ struct Glyph
unsigned int depth = 0) const
{
if (unlikely (depth > HB_MAX_NESTING_LEVEL)) return false;
contour_point_vector_t points;
contour_point_vector_t stack_points;
bool inplace = type == SIMPLE && all_points.length == 0;
contour_point_vector_t &points = inplace ? all_points : stack_points;
switch (type) {
case COMPOSITE:
@ -96,7 +98,7 @@ struct Glyph
}
case SIMPLE:
/* Load into all_points if it's empty, as an optimization. */
if (unlikely (!SimpleGlyph (*header, bytes).get_contour_points (all_points.length == 0 ? all_points : points, phantom_only)))
if (unlikely (!SimpleGlyph (*header, bytes).get_contour_points (points, phantom_only)))
return false;
break;
}
@ -135,7 +137,8 @@ struct Glyph
switch (type) {
case SIMPLE:
all_points.extend (points.as_array ());
if (!inplace)
all_points.extend (points.as_array ());
break;
case COMPOSITE:
{