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Unified Diff: src/core/SkClipStack.cpp

Issue 847033002: Revert of Fix GPU clipped-AA vs. non-AA drawRect discrepancy (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 5 years, 11 months ago
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Index: src/core/SkClipStack.cpp
diff --git a/src/core/SkClipStack.cpp b/src/core/SkClipStack.cpp
index 863dc9a387d1cb2fb69094ec320e0317e85e8fee..515596a9693451f3a8bc05b932405ef20ac975b4 100644
--- a/src/core/SkClipStack.cpp
+++ b/src/core/SkClipStack.cpp
@@ -416,6 +416,19 @@
case kEmpty_Type:
SkDEBUGFAIL("We shouldn't get here with an empty element.");
break;
+ }
+
+ if (!fDoAA) {
+ // Here we mimic a non-anti-aliased scanline system. If there is
+ // no anti-aliasing we can integerize the bounding box to exclude
+ // fractional parts that won't be rendered.
+ // Note: the left edge is handled slightly differently below. We
+ // are a bit more generous in the rounding since we don't want to
+ // risk missing the left pixels when fLeft is very close to .5
+ fFiniteBound.set(SkScalarFloorToScalar(fFiniteBound.fLeft+0.45f),
+ SkScalarRoundToScalar(fFiniteBound.fTop),
+ SkScalarRoundToScalar(fFiniteBound.fRight),
+ SkScalarRoundToScalar(fFiniteBound.fBottom));
}
// Now determine the previous Element's bound information taking into
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