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[glyf] minor 

Improve using https://developer.blender.org/diffusion/B/browse/master/source/blender/blenlib/intern/freetypefont.c$572
This commit is contained in:
Ebrahim Byagowi 2020-02-04 23:05:46 +03:30
parent 5b43603385
commit 7f9b2228a6
1 changed files with 6 additions and 8 deletions
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14
src/hb-ot-glyf-table.hh
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@ -1061,14 +1061,12 @@ struct glyf
float to_x, float to_y, float to_x, float to_y,
void *user_data) void *user_data)
{ {
/* based on https://github.com/fonttools/fonttools/blob/a37dab3/Lib/fontTools/pens/basePen.py#L218 */ funcs->cubic_to (font->em_scalef_x ((from_x + 2.f * control_x) / 3.f),
float mid1_x = from_x + 0.6666666667f * (control_x - from_x); font->em_scalef_y ((from_y + 2.f * control_y) / 3.f),
float mid1_y = from_y + 0.6666666667f * (control_y - from_y); font->em_scalef_x ((to_x + 2.f * control_x) / 3.f),
float mid2_x = to_x + 0.6666666667f * (control_x - to_x); font->em_scalef_y ((to_y + 2.f * control_y) / 3.f),
float mid2_y = to_y + 0.6666666667f * (control_y - to_y); font->em_scalef_x (to_x),
funcs->cubic_to (font->em_scalef_x (mid1_x), font->em_scalef_y (mid1_y), font->em_scalef_y (to_y),
font->em_scalef_x (mid2_x), font->em_scalef_y (mid2_y),
font->em_scalef_x (to_x), font->em_scalef_y (to_y),
user_data); user_data);
} }