add SkPath::isRRect

Add helper to track when a round rect was added to a path,
and then return the SkRRect specification that describes it.

Move the implementation for SkPath::RawIter to SkPathRef so it can be used there as well.

R=reed@google.com,robertphillips@google.com

Review URL: https://codereview.chromium.org/1461763004
diff --git a/include/core/SkPath.h b/include/core/SkPath.h
index 3ff0af1..3c68ff7 100644
--- a/include/core/SkPath.h
+++ b/include/core/SkPath.h
@@ -154,6 +154,17 @@
      */
     bool isOval(SkRect* rect) const { return fPathRef->isOval(rect); }
 
+    /** Returns true if the path is a round rect.
+     *
+     * @param rrect  Returns the bounding rect and radii of this round rect.
+     *
+     * @return true if this path is a round rect.
+     *              Tracking whether a path is a round rect is considered an
+     *              optimization for performance and so some paths that are in
+     *              fact round rects can report false.
+     */
+    bool isRRect(SkRRect* rrect) const { return fPathRef->isRRect(rrect); }
+
     /** Clear any lines and curves from the path, making it empty. This frees up
         internal storage associated with those segments.
         On Android, does not change fSourcePath.
@@ -918,10 +929,14 @@
     */
     class SK_API RawIter {
     public:
-        RawIter();
-        RawIter(const SkPath&);
+        RawIter() {}
+        RawIter(const SkPath& path) {
+            setPath(path);
+        }
 
-        void setPath(const SkPath&);
+        void setPath(const SkPath& path) {
+            fRawIter.setPathRef(*path.fPathRef.get());
+        }
 
         /** Return the next verb in this iteration of the path. When all
             segments have been visited, return kDone_Verb.
@@ -930,15 +945,17 @@
                         This must not be NULL.
             @return The verb for the current segment
         */
-        Verb next(SkPoint pts[4]);
+        Verb next(SkPoint pts[4]) {
+            return (Verb) fRawIter.next(pts);
+        }
 
-        SkScalar conicWeight() const { return *fConicWeights; }
+        SkScalar conicWeight() const {
+            return fRawIter.conicWeight();
+        }
 
     private:
-        const SkPoint*  fPts;
-        const uint8_t*  fVerbs;
-        const uint8_t*  fVerbStop;
-        const SkScalar* fConicWeights;
+        SkPathRef::Iter fRawIter;
+        friend class SkPath;
     };
 
     /**
@@ -1066,6 +1083,7 @@
     friend class SkAutoDisableDirectionCheck;
     friend class SkBench_AddPathTest; // perf test reversePathTo
     friend class PathTest_Private; // unit test reversePathTo
+    friend class ForceIsRRect_Private; // unit test isRRect
 };
 
 #endif
diff --git a/include/core/SkPathRef.h b/include/core/SkPathRef.h
index c09f6e8..86f55c9 100644
--- a/include/core/SkPathRef.h
+++ b/include/core/SkPathRef.h
@@ -11,6 +11,7 @@
 
 #include "SkMatrix.h"
 #include "SkPoint.h"
+#include "SkRRect.h"
 #include "SkRect.h"
 #include "SkRefCnt.h"
 #include "SkTDArray.h"
@@ -100,12 +101,39 @@
 
         void setIsOval(bool isOval) { fPathRef->setIsOval(isOval); }
 
+        void setIsRRect(bool isRRect) { fPathRef->setIsRRect(isRRect); }
+
         void setBounds(const SkRect& rect) { fPathRef->setBounds(rect); }
 
     private:
         SkPathRef* fPathRef;
     };
 
+    class SK_API Iter {
+    public:
+        Iter();
+        Iter(const SkPathRef&);
+
+        void setPathRef(const SkPathRef&);
+
+        /** Return the next verb in this iteration of the path. When all
+            segments have been visited, return kDone_Verb.
+
+            @param  pts The points representing the current verb and/or segment
+                        This must not be NULL.
+            @return The verb for the current segment
+        */
+        uint8_t next(SkPoint pts[4]);
+
+        SkScalar conicWeight() const { return *fConicWeights; }
+
+    private:
+        const SkPoint*  fPts;
+        const uint8_t*  fVerbs;
+        const uint8_t*  fVerbStop;
+        const SkScalar* fConicWeights;
+    };
+
 public:
     /**
      * Gets a path ref with no verbs or points.
@@ -142,12 +170,20 @@
      */
     bool isOval(SkRect* rect) const {
         if (fIsOval && rect) {
-            *rect = getBounds();
+            *rect = this->getBounds();
         }
 
         return SkToBool(fIsOval);
     }
 
+    bool isRRect(SkRRect* rrect) const {
+        if (fIsRRect && rrect) {
+            *rrect = this->getRRect();
+        }
+        return SkToBool(fIsRRect);
+    }
+
+
     bool hasComputedBounds() const {
         return !fBoundsIsDirty;
     }
@@ -164,6 +200,8 @@
         return fBounds;
     }
 
+    SkRRect getRRect() const;
+
     /**
      * Transforms a path ref by a matrix, allocating a new one only if necessary.
      */
@@ -250,6 +288,7 @@
 
 private:
     enum SerializationOffsets {
+        kIsRRect_SerializationShift = 26,   // requires 1 bit
         kIsFinite_SerializationShift = 25,  // requires 1 bit
         kIsOval_SerializationShift = 24,    // requires 1 bit
         kSegmentMask_SerializationShift = 0 // requires 4 bits
@@ -265,6 +304,7 @@
         fGenerationID = kEmptyGenID;
         fSegmentMask = 0;
         fIsOval = false;
+        fIsRRect = false;
         SkDEBUGCODE(fEditorsAttached = 0;)
         SkDEBUGCODE(this->validate();)
     }
@@ -312,6 +352,7 @@
 
         fSegmentMask = 0;
         fIsOval = false;
+        fIsRRect = false;
 
         size_t newSize = sizeof(uint8_t) * verbCount + sizeof(SkPoint) * pointCount;
         size_t newReserve = sizeof(uint8_t) * reserveVerbs + sizeof(SkPoint) * reservePoints;
@@ -411,9 +452,18 @@
 
     void setIsOval(bool isOval) { fIsOval = isOval; }
 
+    void setIsRRect(bool isRRect) { fIsRRect = isRRect; }
+
+    // called only by the editor. Note that this is not a const function.
     SkPoint* getPoints() {
         SkDEBUGCODE(this->validate();)
         fIsOval = false;
+        fIsRRect = false;
+        return fPoints;
+    }
+
+    const SkPoint* getPoints() const {
+        SkDEBUGCODE(this->validate();)
         return fPoints;
     }
 
@@ -424,11 +474,6 @@
     };
 
     mutable SkRect   fBounds;
-    mutable uint8_t  fBoundsIsDirty;
-    mutable SkBool8  fIsFinite;    // only meaningful if bounds are valid
-
-    SkBool8  fIsOval;
-    uint8_t  fSegmentMask;
 
     SkPoint*            fPoints; // points to begining of the allocation
     uint8_t*            fVerbs; // points just past the end of the allocation (verbs grow backwards)
@@ -445,7 +490,15 @@
 
     SkTDArray<GenIDChangeListener*> fGenIDChangeListeners;  // pointers are owned
 
+    mutable uint8_t  fBoundsIsDirty;
+    mutable SkBool8  fIsFinite;    // only meaningful if bounds are valid
+
+    SkBool8  fIsOval;
+    SkBool8  fIsRRect;
+    uint8_t  fSegmentMask;
+
     friend class PathRefTest_Private;
+    friend class ForceIsRRect_Private; // unit test isRRect
     typedef SkRefCnt INHERITED;
 };
 
diff --git a/src/core/SkPath.cpp b/src/core/SkPath.cpp
index a3f5e13..2d4976a 100644
--- a/src/core/SkPath.cpp
+++ b/src/core/SkPath.cpp
@@ -1072,6 +1072,7 @@
             return;
         }
 
+        bool isRRect = hasOnlyMoveTos();
         const SkRect& bounds = rrect.getBounds();
 
         if (rrect.isRect()) {
@@ -1119,6 +1120,9 @@
             }
             this->close();
 
+            SkPathRef::Editor ed(&fPathRef);
+            ed.setIsRRect(isRRect);
+
             SkASSERT(this->countVerbs() == initialVerbCount + kVerbs);
         }
 
@@ -1861,75 +1865,6 @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
-SkPath::RawIter::RawIter() {
-#ifdef SK_DEBUG
-    fPts = nullptr;
-    fConicWeights = nullptr;
-#endif
-    // need to init enough to make next() harmlessly return kDone_Verb
-    fVerbs = nullptr;
-    fVerbStop = nullptr;
-}
-
-SkPath::RawIter::RawIter(const SkPath& path) {
-    this->setPath(path);
-}
-
-void SkPath::RawIter::setPath(const SkPath& path) {
-    fPts = path.fPathRef->points();
-    fVerbs = path.fPathRef->verbs();
-    fVerbStop = path.fPathRef->verbsMemBegin();
-    fConicWeights = path.fPathRef->conicWeights() - 1; // begin one behind
-}
-
-SkPath::Verb SkPath::RawIter::next(SkPoint pts[4]) {
-    SkASSERT(pts);
-    if (fVerbs == fVerbStop) {
-        return kDone_Verb;
-    }
-
-    // fVerbs points one beyond next verb so decrement first.
-    unsigned verb = *(--fVerbs);
-    const SkPoint* srcPts = fPts;
-
-    switch (verb) {
-        case kMove_Verb:
-            pts[0] = srcPts[0];
-            srcPts += 1;
-            break;
-        case kLine_Verb:
-            pts[0] = srcPts[-1];
-            pts[1] = srcPts[0];
-            srcPts += 1;
-            break;
-        case kConic_Verb:
-            fConicWeights += 1;
-            // fall-through
-        case kQuad_Verb:
-            pts[0] = srcPts[-1];
-            pts[1] = srcPts[0];
-            pts[2] = srcPts[1];
-            srcPts += 2;
-            break;
-        case kCubic_Verb:
-            pts[0] = srcPts[-1];
-            pts[1] = srcPts[0];
-            pts[2] = srcPts[1];
-            pts[3] = srcPts[2];
-            srcPts += 3;
-            break;
-        case kClose_Verb:
-            break;
-        case kDone_Verb:
-            SkASSERT(fVerbs == fVerbStop);
-            break;
-    }
-    fPts = srcPts;
-    return (Verb)verb;
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
 /*
     Format in compressed buffer: [ptCount, verbCount, pts[], verbs[]]
 */
diff --git a/src/core/SkPathRef.cpp b/src/core/SkPathRef.cpp
index 1197113..12429ae 100644
--- a/src/core/SkPathRef.cpp
+++ b/src/core/SkPathRef.cpp
@@ -113,15 +113,15 @@
     (*dst)->fSegmentMask = src.fSegmentMask;
 
     // It's an oval only if it stays a rect.
-    (*dst)->fIsOval = src.fIsOval && matrix.rectStaysRect();
+    bool rectStaysRect = matrix.rectStaysRect();
+    (*dst)->fIsOval = src.fIsOval && rectStaysRect;
+    (*dst)->fIsRRect = src.fIsRRect && rectStaysRect;
 
     SkDEBUGCODE((*dst)->validate();)
 }
 
 SkPathRef* SkPathRef::CreateFromBuffer(SkRBuffer* buffer) {
     SkPathRef* ref = new SkPathRef;
-    bool isOval;
-    uint8_t segmentMask;
 
     int32_t packed;
     if (!buffer->readS32(&packed)) {
@@ -130,8 +130,9 @@
     }
 
     ref->fIsFinite = (packed >> kIsFinite_SerializationShift) & 1;
-    segmentMask = (packed >> kSegmentMask_SerializationShift) & 0xF;
-    isOval  = (packed >> kIsOval_SerializationShift) & 1;
+    uint8_t segmentMask = (packed >> kSegmentMask_SerializationShift) & 0xF;
+    bool isOval  = (packed >> kIsOval_SerializationShift) & 1;
+    bool isRRect  = (packed >> kIsRRect_SerializationShift) & 1;
 
     int32_t verbCount, pointCount, conicCount;
     if (!buffer->readU32(&(ref->fGenerationID)) ||
@@ -159,6 +160,7 @@
     // resetToSize clears fSegmentMask and fIsOval
     ref->fSegmentMask = segmentMask;
     ref->fIsOval = isOval;
+    ref->fIsRRect = isRRect;
     return ref;
 }
 
@@ -174,6 +176,7 @@
         (*pathRef)->fConicWeights.rewind();
         (*pathRef)->fSegmentMask = 0;
         (*pathRef)->fIsOval = false;
+        (*pathRef)->fIsRRect = false;
         SkDEBUGCODE((*pathRef)->validate();)
     } else {
         int oldVCnt = (*pathRef)->countVerbs();
@@ -240,6 +243,7 @@
 
     int32_t packed = ((fIsFinite & 1) << kIsFinite_SerializationShift) |
                      ((fIsOval & 1) << kIsOval_SerializationShift) |
+                     ((fIsRRect & 1) << kIsRRect_SerializationShift) |
                      (fSegmentMask << kSegmentMask_SerializationShift);
     buffer->write32(packed);
 
@@ -281,6 +285,7 @@
     }
     fSegmentMask = ref.fSegmentMask;
     fIsOval = ref.fIsOval;
+    fIsRRect = ref.fIsRRect;
     SkDEBUGCODE(this->validate();)
 }
 
@@ -352,6 +357,7 @@
     fBoundsIsDirty = true;  // this also invalidates fIsFinite
     if (dirtyAfterEdit) {
         fIsOval = false;
+        fIsRRect = false;
     }
 
     if (SkPath::kConic_Verb == verb) {
@@ -410,6 +416,7 @@
     fBoundsIsDirty = true;  // this also invalidates fIsFinite
     if (dirtyAfterEdit) {
         fIsOval = false;
+        fIsRRect = false;
     }
 
     if (SkPath::kConic_Verb == verb) {
@@ -456,6 +463,116 @@
     fGenIDChangeListeners.deleteAll();
 }
 
+SkRRect SkPathRef::getRRect() const {
+    const SkRect& bounds = this->getBounds();
+    SkVector radii[4] = {{0, 0}, {0, 0}, {0, 0}, {0, 0}};
+    Iter iter(*this);
+    SkPoint pts[4];
+    uint8_t verb = iter.next(pts);
+    SkASSERT(SkPath::kMove_Verb == verb);
+    while ((verb = iter.next(pts)) != SkPath::kDone_Verb) {
+        if (SkPath::kConic_Verb == verb) {
+            SkVector v1_0 = pts[1] - pts[0];
+            SkVector v2_1 = pts[2] - pts[1];
+            SkVector dxdy;
+            if (v1_0.fX) {
+                SkASSERT(!v2_1.fX && !v1_0.fY);
+                dxdy.set(SkScalarAbs(v1_0.fX), SkScalarAbs(v2_1.fY));
+            } else if (!v1_0.fY) {
+                SkASSERT(!v2_1.fX || !v2_1.fY);
+                dxdy.set(SkScalarAbs(v2_1.fX), SkScalarAbs(v2_1.fY));
+            } else {
+                SkASSERT(!v2_1.fY);
+                dxdy.set(SkScalarAbs(v2_1.fX), SkScalarAbs(v1_0.fY));
+            }
+            SkRRect::Corner corner =
+                    pts[1].fX == bounds.fLeft ?
+                        pts[1].fY == bounds.fTop ?
+                            SkRRect::kUpperLeft_Corner : SkRRect::kLowerLeft_Corner :
+                    pts[1].fY == bounds.fTop ?
+                            SkRRect::kUpperRight_Corner : SkRRect::kLowerRight_Corner;
+            SkASSERT(!radii[corner].fX && !radii[corner].fY);
+            radii[corner] = dxdy;
+        } else {
+            SkASSERT((verb == SkPath::kLine_Verb
+                    && (!(pts[1].fX - pts[0].fX) || !(pts[1].fY - pts[0].fY)))
+                    || verb == SkPath::kClose_Verb);
+        }
+    }
+    SkRRect rrect;
+    rrect.setRectRadii(bounds, radii);
+    return rrect;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+SkPathRef::Iter::Iter() {
+#ifdef SK_DEBUG
+    fPts = nullptr;
+    fConicWeights = nullptr;
+#endif
+    // need to init enough to make next() harmlessly return kDone_Verb
+    fVerbs = nullptr;
+    fVerbStop = nullptr;
+}
+
+SkPathRef::Iter::Iter(const SkPathRef& path) {
+    this->setPathRef(path);
+}
+
+void SkPathRef::Iter::setPathRef(const SkPathRef& path) {
+    fPts = path.points();
+    fVerbs = path.verbs();
+    fVerbStop = path.verbsMemBegin();
+    fConicWeights = path.conicWeights() - 1; // begin one behind
+}
+
+uint8_t SkPathRef::Iter::next(SkPoint pts[4]) {
+    SkASSERT(pts);
+    if (fVerbs == fVerbStop) {
+        return (uint8_t) SkPath::kDone_Verb;
+    }
+
+    // fVerbs points one beyond next verb so decrement first.
+    unsigned verb = *(--fVerbs);
+    const SkPoint* srcPts = fPts;
+
+    switch (verb) {
+        case SkPath::kMove_Verb:
+            pts[0] = srcPts[0];
+            srcPts += 1;
+            break;
+        case SkPath::kLine_Verb:
+            pts[0] = srcPts[-1];
+            pts[1] = srcPts[0];
+            srcPts += 1;
+            break;
+        case SkPath::kConic_Verb:
+            fConicWeights += 1;
+            // fall-through
+        case SkPath::kQuad_Verb:
+            pts[0] = srcPts[-1];
+            pts[1] = srcPts[0];
+            pts[2] = srcPts[1];
+            srcPts += 2;
+            break;
+        case SkPath::kCubic_Verb:
+            pts[0] = srcPts[-1];
+            pts[1] = srcPts[0];
+            pts[2] = srcPts[1];
+            pts[3] = srcPts[2];
+            srcPts += 3;
+            break;
+        case SkPath::kClose_Verb:
+            break;
+        case SkPath::kDone_Verb:
+            SkASSERT(fVerbs == fVerbStop);
+            break;
+    }
+    fPts = srcPts;
+    return (uint8_t) verb;
+}
+
 #ifdef SK_DEBUG
 void SkPathRef::validate() const {
     this->INHERITED::validate();
diff --git a/tests/RRectInPathTest.cpp b/tests/RRectInPathTest.cpp
new file mode 100644
index 0000000..c6b1d9c
--- /dev/null
+++ b/tests/RRectInPathTest.cpp
@@ -0,0 +1,388 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkMatrix.h"
+#include "SkPath.h"
+#include "SkPathRef.h"
+#include "SkPathOps.h"
+#include "SkRRect.h"
+#include "Test.h"
+
+static SkRRect path_contains_rrect(skiatest::Reporter* reporter, const SkPath& path) {
+    SkRRect out;
+    REPORTER_ASSERT(reporter, path.isRRect(&out));
+    SkPath path2, xorBoth;
+    path2.addRRect(out);
+    if (path == path2) {
+        return out;
+    }
+    Op(path, path2, SkPathOp::kXOR_SkPathOp, &xorBoth);
+    REPORTER_ASSERT(reporter, xorBoth.isEmpty());
+    return out;
+}
+
+static SkRRect inner_path_contains_rrect(skiatest::Reporter* reporter, const SkRRect& in) {
+    switch (in.getType()) {
+        case SkRRect::kEmpty_Type:
+        case SkRRect::kRect_Type:
+        case SkRRect::kOval_Type:
+            return in;
+        default:
+            break;
+    }
+    SkPath path;
+    path.addRRect(in);
+    return path_contains_rrect(reporter, path);
+}
+
+static void path_contains_rrect_check(skiatest::Reporter* reporter, const SkRRect& in) {
+    SkRRect out = inner_path_contains_rrect(reporter, in);
+    if (in != out) {
+        SkDebugf("");
+    }
+    REPORTER_ASSERT(reporter, in == out);
+}
+
+static void path_contains_rrect_nocheck(skiatest::Reporter* reporter, const SkRRect& in) {
+    SkRRect out = inner_path_contains_rrect(reporter, in);
+    if (in == out) {
+        SkDebugf("");
+    }
+}
+
+static void path_contains_rrect_check(skiatest::Reporter* reporter, const SkRect& r,
+        SkVector v[4]) {
+    SkRRect rrect;
+    rrect.setRectRadii(r, v);
+    path_contains_rrect_check(reporter, rrect);
+}
+
+class ForceIsRRect_Private {
+public:
+    ForceIsRRect_Private(SkPath* path) {
+        path->fPathRef->setIsRRect(true);
+    }
+};
+
+static void force_path_contains_rrect(skiatest::Reporter* reporter, SkPath& path) {
+    ForceIsRRect_Private force_rrect(&path);
+    path_contains_rrect(reporter, path);
+}
+
+static void test_undetected_paths(skiatest::Reporter* reporter) {
+    SkPath path;
+    path.moveTo(0, 62.5f);
+    path.lineTo(0, 3.5f);
+    path.conicTo(0, 0, 3.5f, 0, 0.70710677f);
+    path.lineTo(196.5f, 0);
+    path.conicTo(200, 0, 200, 3.5f, 0.70710677f);
+    path.lineTo(200, 62.5f);
+    path.conicTo(200, 66, 196.5f, 66, 0.70710677f);
+    path.lineTo(3.5f, 66);
+    path.conicTo(0, 66, 0, 62.5, 0.70710677f);
+    path.close();
+    force_path_contains_rrect(reporter, path);
+
+    path.reset();
+    path.moveTo(0, 81.5f);
+    path.lineTo(0, 3.5f);
+    path.conicTo(0, 0, 3.5f, 0, 0.70710677f);
+    path.lineTo(149.5, 0);
+    path.conicTo(153, 0, 153, 3.5f, 0.70710677f);
+    path.lineTo(153, 81.5f);
+    path.conicTo(153, 85, 149.5f, 85, 0.70710677f);
+    path.lineTo(3.5f, 85);
+    path.conicTo(0, 85, 0, 81.5f, 0.70710677f);
+    path.close();
+    force_path_contains_rrect(reporter, path);
+
+    path.reset();
+    path.moveTo(14, 1189);
+    path.lineTo(14, 21);
+    path.conicTo(14, 14, 21, 14, 0.70710677f);
+    path.lineTo(1363, 14);
+    path.conicTo(1370, 14, 1370, 21, 0.70710677f);
+    path.lineTo(1370, 1189);
+    path.conicTo(1370, 1196, 1363, 1196, 0.70710677f);
+    path.lineTo(21, 1196);
+    path.conicTo(14, 1196, 14, 1189, 0.70710677f);
+    path.close();
+    force_path_contains_rrect(reporter, path);
+
+    path.reset();
+    path.moveTo(14, 1743);
+    path.lineTo(14, 21);
+    path.conicTo(14, 14, 21, 14, 0.70710677f);
+    path.lineTo(1363, 14);
+    path.conicTo(1370, 14, 1370, 21, 0.70710677f);
+    path.lineTo(1370, 1743);
+    path.conicTo(1370, 1750, 1363, 1750, 0.70710677f);
+    path.lineTo(21, 1750);
+    path.conicTo(14, 1750, 14, 1743, 0.70710677f);
+    path.close();
+    force_path_contains_rrect(reporter, path);
+}
+
+static const SkScalar kWidth = 100.0f;
+static const SkScalar kHeight = 100.0f;
+
+static void test_tricky_radii(skiatest::Reporter* reporter) {
+    {
+        // crbug.com/458522
+        SkRRect rr;
+        const SkRect bounds = { 3709, 3709, 3709 + 7402, 3709 + 29825 };
+        const SkScalar rad = 12814;
+        const SkVector vec[] = { { rad, rad }, { 0, rad }, { rad, rad }, { 0, rad } };
+        rr.setRectRadii(bounds, vec);
+        path_contains_rrect_check(reporter, rr);
+    }
+
+    {
+        // crbug.com//463920
+        SkRect r = SkRect::MakeLTRB(0, 0, 1009, 33554432.0);
+        SkVector radii[4] = {
+            { 13.0f, 8.0f }, { 170.0f, 2.0 }, { 256.0f, 33554432.0 }, { 110.0f, 5.0f }
+        };
+        SkRRect rr;
+        rr.setRectRadii(r, radii);
+        path_contains_rrect_nocheck(reporter, rr);
+    }
+}
+
+static void test_empty_crbug_458524(skiatest::Reporter* reporter) {
+    SkRRect rr;
+    const SkRect bounds = { 3709, 3709, 3709 + 7402, 3709 + 29825 };
+    const SkScalar rad = 40;
+    rr.setRectXY(bounds, rad, rad);
+    path_contains_rrect_check(reporter, rr);
+
+    SkRRect other;
+    SkMatrix matrix;
+    matrix.setScale(0, 1);
+    rr.transform(matrix, &other);
+    path_contains_rrect_check(reporter, rr);
+}
+
+static void test_inset(skiatest::Reporter* reporter) {
+    SkRRect rr, rr2;
+    SkRect r = { 0, 0, 100, 100 };
+
+    rr.setRect(r);
+    rr.inset(-20, -20, &rr2);
+    path_contains_rrect_check(reporter, rr);
+
+    rr.inset(20, 20, &rr2);
+    path_contains_rrect_check(reporter, rr);
+
+    rr.inset(r.width()/2, r.height()/2, &rr2);
+    path_contains_rrect_check(reporter, rr);
+
+    rr.setRectXY(r, 20, 20);
+    rr.inset(19, 19, &rr2);
+    path_contains_rrect_check(reporter, rr);
+    rr.inset(20, 20, &rr2);
+    path_contains_rrect_check(reporter, rr);
+}
+
+
+static void test_9patch_rrect(skiatest::Reporter* reporter,
+                              const SkRect& rect,
+                              SkScalar l, SkScalar t, SkScalar r, SkScalar b,
+                              bool checkRadii) {
+    SkRRect rr;
+    rr.setNinePatch(rect, l, t, r, b);
+    if (checkRadii) {
+        path_contains_rrect_check(reporter, rr);
+    } else {
+        path_contains_rrect_nocheck(reporter, rr);
+    }
+
+    SkRRect rr2; // construct the same RR using the most general set function
+    SkVector radii[4] = { { l, t }, { r, t }, { r, b }, { l, b } };
+    rr2.setRectRadii(rect, radii);
+    if (checkRadii) {
+        path_contains_rrect_check(reporter, rr);
+    } else {
+        path_contains_rrect_nocheck(reporter, rr);
+    }
+}
+
+// Test out the basic API entry points
+static void test_round_rect_basic(skiatest::Reporter* reporter) {
+
+    //----
+    SkRect rect = SkRect::MakeLTRB(0, 0, kWidth, kHeight);
+
+    SkRRect rr1;
+    rr1.setRect(rect);
+    path_contains_rrect_check(reporter, rr1);
+
+    SkRRect rr1_2; // construct the same RR using the most general set function
+    SkVector rr1_2_radii[4] = { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 } };
+    rr1_2.setRectRadii(rect, rr1_2_radii);
+    path_contains_rrect_check(reporter, rr1_2);
+    SkRRect rr1_3;  // construct the same RR using the nine patch set function
+    rr1_3.setNinePatch(rect, 0, 0, 0, 0);
+    path_contains_rrect_check(reporter, rr1_2);
+
+    //----
+    SkPoint halfPoint = { SkScalarHalf(kWidth), SkScalarHalf(kHeight) };
+    SkRRect rr2;
+    rr2.setOval(rect);
+    path_contains_rrect_check(reporter, rr2);
+
+    SkRRect rr2_2;  // construct the same RR using the most general set function
+    SkVector rr2_2_radii[4] = { { halfPoint.fX, halfPoint.fY }, { halfPoint.fX, halfPoint.fY },
+                                { halfPoint.fX, halfPoint.fY }, { halfPoint.fX, halfPoint.fY } };
+    rr2_2.setRectRadii(rect, rr2_2_radii);
+    path_contains_rrect_check(reporter, rr2_2);
+    SkRRect rr2_3;  // construct the same RR using the nine patch set function
+    rr2_3.setNinePatch(rect, halfPoint.fX, halfPoint.fY, halfPoint.fX, halfPoint.fY);
+    path_contains_rrect_check(reporter, rr2_3);
+
+    //----
+    SkPoint p = { 5, 5 };
+    SkRRect rr3;
+    rr3.setRectXY(rect, p.fX, p.fY);
+    path_contains_rrect_check(reporter, rr3);
+
+    SkRRect rr3_2; // construct the same RR using the most general set function
+    SkVector rr3_2_radii[4] = { { 5, 5 }, { 5, 5 }, { 5, 5 }, { 5, 5 } };
+    rr3_2.setRectRadii(rect, rr3_2_radii);
+    path_contains_rrect_check(reporter, rr3_2);
+    SkRRect rr3_3;  // construct the same RR using the nine patch set function
+    rr3_3.setNinePatch(rect, 5, 5, 5, 5);
+    path_contains_rrect_check(reporter, rr3_3);
+
+    //----
+    test_9patch_rrect(reporter, rect, 10, 9, 8, 7, true);
+
+    {
+        // Test out the rrect from skia:3466
+        SkRect rect2 = SkRect::MakeLTRB(0.358211994f, 0.755430222f, 0.872866154f, 0.806214333f);
+
+        test_9patch_rrect(reporter,
+                          rect2,
+                          0.926942348f, 0.642850280f, 0.529063463f, 0.587844372f,
+                          false);
+    }
+
+    //----
+    SkPoint radii2[4] = { { 0, 0 }, { 0, 0 }, { 50, 50 }, { 20, 50 } };
+
+    SkRRect rr5;
+    rr5.setRectRadii(rect, radii2);
+    path_contains_rrect_check(reporter, rr5);
+}
+
+// Test out the cases when the RR degenerates to a rect
+static void test_round_rect_rects(skiatest::Reporter* reporter) {
+
+    //----
+    SkRect rect = SkRect::MakeLTRB(0, 0, kWidth, kHeight);
+    SkRRect rr1;
+    rr1.setRectXY(rect, 0, 0);
+
+    path_contains_rrect_check(reporter, rr1);
+
+    //----
+    SkPoint radii[4] = { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 } };
+
+    SkRRect rr2;
+    rr2.setRectRadii(rect, radii);
+
+    path_contains_rrect_check(reporter, rr2);
+
+    //----
+    SkPoint radii2[4] = { { 0, 0 }, { 20, 20 }, { 50, 50 }, { 20, 50 } };
+
+    SkRRect rr3;
+    rr3.setRectRadii(rect, radii2);
+    path_contains_rrect_check(reporter, rr3);
+}
+
+// Test out the cases when the RR degenerates to an oval
+static void test_round_rect_ovals(skiatest::Reporter* reporter) {
+    //----
+    SkRect rect = SkRect::MakeLTRB(0, 0, kWidth, kHeight);
+    SkRRect rr1;
+    rr1.setRectXY(rect, SkScalarHalf(kWidth), SkScalarHalf(kHeight));
+
+    path_contains_rrect_check(reporter, rr1);
+}
+
+// Test out the non-degenerate RR cases
+static void test_round_rect_general(skiatest::Reporter* reporter) {
+    //----
+    SkRect rect = SkRect::MakeLTRB(0, 0, kWidth, kHeight);
+    SkRRect rr1;
+    rr1.setRectXY(rect, 20, 20);
+
+    path_contains_rrect_check(reporter, rr1);
+
+    //----
+    SkPoint radii[4] = { { 0, 0 }, { 20, 20 }, { 50, 50 }, { 20, 50 } };
+
+    SkRRect rr2;
+    rr2.setRectRadii(rect, radii);
+
+    path_contains_rrect_check(reporter, rr2);
+}
+
+static void test_round_rect_iffy_parameters(skiatest::Reporter* reporter) {
+    SkRect rect = SkRect::MakeLTRB(0, 0, kWidth, kHeight);
+    SkPoint radii[4] = { { 50, 100 }, { 100, 50 }, { 50, 100 }, { 100, 50 } };
+    SkRRect rr1;
+    rr1.setRectRadii(rect, radii);
+    path_contains_rrect_nocheck(reporter, rr1);
+}
+
+static void set_radii(SkVector radii[4], int index, float rad) {
+    sk_bzero(radii, sizeof(SkVector) * 4);
+    radii[index].set(rad, rad);
+}
+
+static void test_skbug_3239(skiatest::Reporter* reporter) {
+    const float min = SkBits2Float(0xcb7f16c8); /* -16717512.000000 */
+    const float max = SkBits2Float(0x4b7f1c1d); /*  16718877.000000 */
+    const float big = SkBits2Float(0x4b7f1bd7); /*  16718807.000000 */
+
+    const float rad = 33436320;
+
+    const SkRect rectx = SkRect::MakeLTRB(min, min, max, big);
+    const SkRect recty = SkRect::MakeLTRB(min, min, big, max);
+
+    SkVector radii[4];
+    for (int i = 0; i < 4; ++i) {
+        set_radii(radii, i, rad);
+        path_contains_rrect_check(reporter, rectx, radii);
+        path_contains_rrect_check(reporter, recty, radii);
+    }
+}
+
+static void test_mix(skiatest::Reporter* reporter) {
+    // Test out mixed degenerate and non-degenerate geometry with Conics
+    const SkVector radii[4] = { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 100, 100 } };
+    SkRect r = SkRect::MakeWH(100, 100);
+    SkRRect rr;
+    rr.setRectRadii(r, radii);
+    path_contains_rrect_check(reporter, rr);
+}
+
+DEF_TEST(RoundRectInPath, reporter) {
+    test_tricky_radii(reporter);
+    test_empty_crbug_458524(reporter);
+    test_inset(reporter);
+    test_round_rect_basic(reporter);
+    test_round_rect_rects(reporter);
+    test_round_rect_ovals(reporter);
+    test_round_rect_general(reporter);
+    test_undetected_paths(reporter);
+    test_round_rect_iffy_parameters(reporter);
+    test_skbug_3239(reporter);
+    test_mix(reporter);
+}