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[varLib] Improve IUP DP

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Previously, it was always encoding first and last point.  Now it only always
encodes last point.  Soon resolving that too.  Shows another 0.5% savings in
gvar table size with Noto Sans Arabic.
This commit is contained in:
Behdad Esfahbod 2017-05-31 19:14:17 -04:00
parent 0b8c9e3a0c
commit 5ee58772cf
1 changed files with 4 additions and 4 deletions
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8
Lib/fontTools/varLib/__init__.py
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@ -274,9 +274,9 @@ def _iup_contour_optimize(delta, coords, tolerance=0.):
# we stop looking further whenever we see a "forced" point.
#
# TODO Handle circularity in Dynamic-Programming.
costs = {0:1}
chain = {0:None}
for i in range(1, len(delta)):
costs = {-1:0}
chain = {-1:None}
for i in range(0, len(delta)):
best_cost = costs[i-1] + 1
costs[i] = best_cost
@ -285,7 +285,7 @@ def _iup_contour_optimize(delta, coords, tolerance=0.):
if i - 1 in forced:
continue
for j in range(i-2, -1, -1):
for j in range(i-2, -2, -1):
cost = costs[j] + 1