diff options
Diffstat (limited to 'src/core/SkBlitter.cpp')
| -rw-r--r-- | src/core/SkBlitter.cpp | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/core/SkBlitter.cpp b/src/core/SkBlitter.cpp index 0a642ca4f6..18b9d83048 100644 --- a/src/core/SkBlitter.cpp +++ b/src/core/SkBlitter.cpp @@ -129,9 +129,15 @@ void SkBlitter::blitCoverageDeltas(SkCoverageDeltaList* deltas, const SkIRect& c int lastX = clip.fLeft; // init x to clip.fLeft SkFixed coverage = 0; // init coverage to 0 - // skip deltas with x less than clip.fLeft; they must be precision errors - for(; i < deltas->count(y) && deltas->getDelta(y, i).fX < clip.fLeft; ++i) - ; + // skip deltas with x less than clip.fLeft; they may be: + // 1. precision errors + // 2. deltas generated during init-once phase (threaded backend) that has a wider + // clip than the final tile clip. + for(; i < deltas->count(y) && deltas->getDelta(y, i).fX < clip.fLeft; ++i) { +#ifndef SK_SUPPORT_LEGACY_THREADED_DAA_BUGS + coverage += deltas->getDelta(y, i).fDelta; +#endif + } for(; i < deltas->count(y) && deltas->getDelta(y, i).fX < clip.fRight; ++i) { const SkCoverageDelta& delta = deltas->getDelta(y, i); SkASSERT(delta.fX >= lastX); // delta must be x sorted |