Converts a drawPaint through a rrect clip to a drawRRect in GrDrawContext.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2271053004
Review-Url: https://codereview.chromium.org/2271053004
diff --git a/include/core/SkClipStack.h b/include/core/SkClipStack.h
index fb0b278..f34283d 100644
--- a/include/core/SkClipStack.h
+++ b/include/core/SkClipStack.h
@@ -365,6 +365,21 @@
bool isWideOpen() const { return this->getTopmostGenID() == kWideOpenGenID; }
/**
+ * This method quickly and conservatively determines whether the entire stack is equivalent to
+ * intersection with a rrect given a bounds, where the rrect must not contain the entire bounds.
+ *
+ * @param bounds A bounds on what will be drawn through the clip. The clip only need be
+ * equivalent to a intersection with a rrect for draws within the bounds. The
+ * returned rrect must intersect the bounds but need not be contained by the
+ * bounds.
+ * @param rrect If return is true rrect will contain the rrect equivalent to the stack.
+ * @param aa If return is true aa will indicate whether the equivalent rrect clip is
+ * antialiased.
+ * @return true if the stack is equivalent to a single rrect intersect clip, false otherwise.
+ */
+ bool isRRect(const SkRect& bounds, SkRRect* rrect, bool* aa) const;
+
+ /**
* The generation ID has three reserved values to indicate special
* (potentially ignorable) cases
*/
diff --git a/include/gpu/GrClip.h b/include/gpu/GrClip.h
index 168827b..a7505f9 100644
--- a/include/gpu/GrClip.h
+++ b/include/gpu/GrClip.h
@@ -33,6 +33,21 @@
virtual ~GrClip() {}
/**
+ * This method quickly and conservatively determines whether the entire clip is equivalent to
+ * intersection with a rrect. This will only return true if the rrect does not fully contain
+ * the render target bounds. Moreover, the returned rrect need not be contained by the render
+ * target bounds. We assume all draws will be implicitly clipped by the render target bounds.
+ *
+ * @param rtBounds The bounds of the render target that the clip will be applied to.
+ * @param rrect If return is true rrect will contain the rrect equivalent to the clip within
+ * rtBounds.
+ * @param aa If return is true aa will indicate whether the rrect clip is antialiased.
+ * @return true if the clip is equivalent to a single rrect, false otherwise.
+ *
+ */
+ virtual bool isRRect(const SkRect& rtBounds, SkRRect* rrect, bool* aa) const = 0;
+
+ /**
* This is the maximum distance that a draw may extend beyond a clip's boundary and still count
* count as "on the other side". We leave some slack because floating point rounding error is
* likely to blame. The rationale for 1e-3 is that in the coverage case (and barring unexpected
@@ -122,6 +137,7 @@
bool apply(GrContext*, GrDrawContext*, bool, bool, GrAppliedClip*) const final {
return true;
}
+ bool isRRect(const SkRect&, SkRRect*, bool*) const override { return false; };
};
#endif