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Do not skip fractional y for SkAAClip

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This should fix the following bugs:
https://bugs.chromium.org/p/chromium/issues/detail?id=659883
https://bugs.chromium.org/p/chromium/issues/detail?id=659972

BUG=chromium:659883,chromium:659972
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2452393002

Review-Url: https://codereview.chromium.org/2452393002
This commit is contained in:
liyuqian 2016-10-27 08:45:32 -07:00 committed by Commit bot
parent a049ac46d4
commit 552889ea44
1 changed files with 5 additions and 2 deletions
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7
src/core/SkScan_AAAPath.cpp
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@ -952,8 +952,11 @@ static inline void aaa_walk_convex_edges(SkAnalyticEdge* prevHead, AdditiveBlitt
}
SkFixed local_bot_fixed = SkMin32(leftE->fLowerY, riteE->fLowerY);
// Skip the fractional y if edges are changing smoothly
if (isSmoothEnough(leftE, riteE, currE, stop_y)) {
// Skip the fractional y if edges are changing smoothly.
// If forceRLE is true, we won't skip the fractional y because it
// implies that SkAAClip is calling us and there are strict
// assertions inside SkAAClip.
if (isSmoothEnough(leftE, riteE, currE, stop_y) && !forceRLE) {
local_bot_fixed = SkFixedCeilToFixed(local_bot_fixed);
}
local_bot_fixed = SkMin32(local_bot_fixed, SkIntToFixed(stop_y + 1));