diff --git a/libs/hwui/CanvasState.cpp b/libs/hwui/CanvasState.cpp
index e88e9f6..e22b0d3 100644
--- a/libs/hwui/CanvasState.cpp
+++ b/libs/hwui/CanvasState.cpp
@@ -189,6 +189,9 @@
     mSnapshot->setClippingRoundRect(allocator, rect, radius, highPriority);
 }
 
+void CanvasState::setProjectionPathMask(LinearAllocator& allocator, const SkPath* path) {
+    mSnapshot->setProjectionPathMask(allocator, path);
+}
 
 ///////////////////////////////////////////////////////////////////////////////
 // Quick Rejection
diff --git a/libs/hwui/CanvasState.h b/libs/hwui/CanvasState.h
index 8e4a4d3..9354e94 100644
--- a/libs/hwui/CanvasState.h
+++ b/libs/hwui/CanvasState.h
@@ -130,6 +130,7 @@
     void setClippingOutline(LinearAllocator& allocator, const Outline* outline);
     void setClippingRoundRect(LinearAllocator& allocator,
             const Rect& rect, float radius, bool highPriority = true);
+    void setProjectionPathMask(LinearAllocator& allocator, const SkPath* path);
 
     /**
      * Returns true if drawing in the rectangle (left, top, right, bottom)
diff --git a/libs/hwui/DeferredDisplayList.cpp b/libs/hwui/DeferredDisplayList.cpp
index 6fcf958..b077a85 100644
--- a/libs/hwui/DeferredDisplayList.cpp
+++ b/libs/hwui/DeferredDisplayList.cpp
@@ -195,6 +195,7 @@
         // Identical round rect clip state means both ops will clip in the same way, or not at all.
         // As the state objects are const, we can compare their pointers to determine mergeability
         if (lhs->mRoundRectClipState != rhs->mRoundRectClipState) return false;
+        if (lhs->mProjectionPathMask != rhs->mProjectionPathMask) return false;
 
         /* Clipping compatibility check
          *
diff --git a/libs/hwui/DeferredDisplayList.h b/libs/hwui/DeferredDisplayList.h
index 3d0ca6d..160c1ad 100644
--- a/libs/hwui/DeferredDisplayList.h
+++ b/libs/hwui/DeferredDisplayList.h
@@ -63,6 +63,7 @@
     mat4 mMatrix;
     float mAlpha;
     const RoundRectClipState* mRoundRectClipState;
+    const ProjectionPathMask* mProjectionPathMask;
 };
 
 class OpStatePair {
diff --git a/libs/hwui/Matrix.h b/libs/hwui/Matrix.h
index a760135..c152789 100644
--- a/libs/hwui/Matrix.h
+++ b/libs/hwui/Matrix.h
@@ -134,6 +134,12 @@
 
     uint8_t getType() const;
 
+    void multiplyInverse(const Matrix4& v) {
+        Matrix4 inv;
+        inv.loadInverse(v);
+        multiply(inv);
+    }
+
     void multiply(const Matrix4& v) {
         Matrix4 u;
         u.loadMultiply(*this, v);
diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp
index 54bcd7e..d87a3e6 100644
--- a/libs/hwui/OpenGLRenderer.cpp
+++ b/libs/hwui/OpenGLRenderer.cpp
@@ -40,6 +40,7 @@
 
 #include <SkCanvas.h>
 #include <SkColor.h>
+#include <SkPathOps.h>
 #include <SkShader.h>
 #include <SkTypeface.h>
 
@@ -1193,8 +1194,9 @@
     state.mMatrix.load(*currentMatrix);
     state.mAlpha = currentSnapshot()->alpha;
 
-    // always store/restore, since it's just a pointer
+    // always store/restore, since these are just pointers
     state.mRoundRectClipState = currentSnapshot()->roundRectClipState;
+    state.mProjectionPathMask = currentSnapshot()->projectionPathMask;
     return false;
 }
 
@@ -1202,6 +1204,7 @@
     setMatrix(state.mMatrix);
     writableSnapshot()->alpha = state.mAlpha;
     writableSnapshot()->roundRectClipState = state.mRoundRectClipState;
+    writableSnapshot()->projectionPathMask = state.mProjectionPathMask;
 
     if (state.mClipValid && !skipClipRestore) {
         writableSnapshot()->setClip(state.mClip.left, state.mClip.top,
@@ -1755,6 +1758,7 @@
 void OpenGLRenderer::drawConvexPath(const SkPath& path, const SkPaint* paint) {
     VertexBuffer vertexBuffer;
     // TODO: try clipping large paths to viewport
+
     PathTessellator::tessellatePath(path, paint, *currentTransform(), vertexBuffer);
     drawVertexBuffer(vertexBuffer, paint);
 }
@@ -1861,19 +1865,41 @@
             || PaintUtils::paintWillNotDraw(*p)) {
         return;
     }
+
     if (p->getPathEffect() != nullptr) {
         mCaches.textureState().activateTexture(0);
         PathTexture* texture = mCaches.pathCache.getCircle(radius, p);
         drawShape(x - radius, y - radius, texture, p);
-    } else {
-        SkPath path;
-        if (p->getStyle() == SkPaint::kStrokeAndFill_Style) {
-            path.addCircle(x, y, radius + p->getStrokeWidth() / 2);
-        } else {
-            path.addCircle(x, y, radius);
-        }
-        drawConvexPath(path, p);
+        return;
     }
+
+    SkPath path;
+    if (p->getStyle() == SkPaint::kStrokeAndFill_Style) {
+        path.addCircle(x, y, radius + p->getStrokeWidth() / 2);
+    } else {
+        path.addCircle(x, y, radius);
+    }
+
+    if (CC_UNLIKELY(currentSnapshot()->projectionPathMask != nullptr)) {
+        // mask ripples with projection mask
+        SkPath maskPath = *(currentSnapshot()->projectionPathMask->projectionMask);
+
+        Matrix4 screenSpaceTransform;
+        currentSnapshot()->buildScreenSpaceTransform(&screenSpaceTransform);
+
+        Matrix4 totalTransform;
+        totalTransform.loadInverse(screenSpaceTransform);
+        totalTransform.multiply(currentSnapshot()->projectionPathMask->projectionMaskTransform);
+
+        SkMatrix skTotalTransform;
+        totalTransform.copyTo(skTotalTransform);
+        maskPath.transform(skTotalTransform);
+
+        // Mask the ripple path by the projection mask, now that it's
+        // in local space. Note that this can create CCW paths.
+        Op(path, maskPath, kIntersect_PathOp, &path);
+    }
+    drawConvexPath(path, p);
 }
 
 void OpenGLRenderer::drawOval(float left, float top, float right, float bottom,
@@ -2146,6 +2172,10 @@
     mState.setClippingRoundRect(allocator, rect, radius, highPriority);
 }
 
+void OpenGLRenderer::setProjectionPathMask(LinearAllocator& allocator, const SkPath* path) {
+    mState.setProjectionPathMask(allocator, path);
+}
+
 void OpenGLRenderer::drawText(const char* text, int bytesCount, int count, float x, float y,
         const float* positions, const SkPaint* paint, float totalAdvance, const Rect& bounds,
         DrawOpMode drawOpMode) {
diff --git a/libs/hwui/OpenGLRenderer.h b/libs/hwui/OpenGLRenderer.h
index 218818d..8dae82c 100755
--- a/libs/hwui/OpenGLRenderer.h
+++ b/libs/hwui/OpenGLRenderer.h
@@ -399,6 +399,7 @@
     void setClippingOutline(LinearAllocator& allocator, const Outline* outline);
     void setClippingRoundRect(LinearAllocator& allocator,
             const Rect& rect, float radius, bool highPriority = true);
+    void setProjectionPathMask(LinearAllocator& allocator, const SkPath* path);
 
     inline bool hasRectToRectTransform() const { return mState.hasRectToRectTransform(); }
     inline const mat4* currentTransform() const { return mState.currentTransform(); }
diff --git a/libs/hwui/PathTessellator.cpp b/libs/hwui/PathTessellator.cpp
index c1f61d6..e7c6c05 100644
--- a/libs/hwui/PathTessellator.cpp
+++ b/libs/hwui/PathTessellator.cpp
@@ -37,6 +37,7 @@
 
 #include <SkPath.h>
 #include <SkPaint.h>
+#include <SkPoint.h>
 #include <SkGeometry.h> // WARNING: Internal Skia Header
 
 #include <stdlib.h>
@@ -912,6 +913,39 @@
     Vertex::set(newVertex, x, y);
 }
 
+class ClockwiseEnforcer {
+public:
+    void addPoint(const SkPoint& point) {
+        double x = point.x();
+        double y = point.y();
+
+        if (initialized) {
+            sum += (x + lastX) * (y - lastY);
+        } else {
+            initialized = true;
+        }
+
+        lastX = x;
+        lastY = y;
+    }
+    void reverseVectorIfNotClockwise(Vector<Vertex>& vertices) {
+        if (sum < 0) {
+            // negative sum implies CounterClockwise
+            const int size = vertices.size();
+            for (int i = 0; i < size / 2; i++) {
+                Vertex tmp = vertices[i];
+                int k = size - 1 - i;
+                vertices.replaceAt(vertices[k], i);
+                vertices.replaceAt(tmp, k);
+            }
+        }
+    }
+private:
+    bool initialized = false;
+    double lastX, lastY;
+    double sum = 0;
+};
+
 bool PathTessellator::approximatePathOutlineVertices(const SkPath& path, bool forceClose,
         float sqrInvScaleX, float sqrInvScaleY, float thresholdSquared,
         Vector<Vertex>& outputVertices) {
@@ -922,18 +956,22 @@
     SkPath::Iter iter(path, forceClose);
     SkPoint pts[4];
     SkPath::Verb v;
+    ClockwiseEnforcer clockwiseEnforcer;
     while (SkPath::kDone_Verb != (v = iter.next(pts))) {
             switch (v) {
             case SkPath::kMove_Verb:
                 pushToVector(outputVertices, pts[0].x(), pts[0].y());
                 ALOGV("Move to pos %f %f", pts[0].x(), pts[0].y());
+                clockwiseEnforcer.addPoint(pts[0]);
                 break;
             case SkPath::kClose_Verb:
                 ALOGV("Close at pos %f %f", pts[0].x(), pts[0].y());
+                clockwiseEnforcer.addPoint(pts[0]);
                 break;
             case SkPath::kLine_Verb:
                 ALOGV("kLine_Verb %f %f -> %f %f", pts[0].x(), pts[0].y(), pts[1].x(), pts[1].y());
                 pushToVector(outputVertices, pts[1].x(), pts[1].y());
+                clockwiseEnforcer.addPoint(pts[1]);
                 break;
             case SkPath::kQuad_Verb:
                 ALOGV("kQuad_Verb");
@@ -942,6 +980,8 @@
                         pts[2].x(), pts[2].y(),
                         pts[1].x(), pts[1].y(),
                         sqrInvScaleX, sqrInvScaleY, thresholdSquared, outputVertices);
+                clockwiseEnforcer.addPoint(pts[1]);
+                clockwiseEnforcer.addPoint(pts[2]);
                 break;
             case SkPath::kCubic_Verb:
                 ALOGV("kCubic_Verb");
@@ -951,6 +991,9 @@
                         pts[3].x(), pts[3].y(),
                         pts[2].x(), pts[2].y(),
                         sqrInvScaleX, sqrInvScaleY, thresholdSquared, outputVertices);
+                clockwiseEnforcer.addPoint(pts[1]);
+                clockwiseEnforcer.addPoint(pts[2]);
+                clockwiseEnforcer.addPoint(pts[3]);
                 break;
             case SkPath::kConic_Verb: {
                 ALOGV("kConic_Verb");
@@ -965,6 +1008,8 @@
                             quads[offset+1].x(), quads[offset+1].y(),
                             sqrInvScaleX, sqrInvScaleY, thresholdSquared, outputVertices);
                 }
+                clockwiseEnforcer.addPoint(pts[1]);
+                clockwiseEnforcer.addPoint(pts[2]);
                 break;
             }
             default:
@@ -972,13 +1017,17 @@
             }
     }
 
+    bool wasClosed = false;
     int size = outputVertices.size();
     if (size >= 2 && outputVertices[0].x == outputVertices[size - 1].x &&
             outputVertices[0].y == outputVertices[size - 1].y) {
         outputVertices.pop();
-        return true;
+        wasClosed = true;
     }
-    return false;
+
+    // ensure output vector is clockwise
+    clockwiseEnforcer.reverseVectorIfNotClockwise(outputVertices);
+    return wasClosed;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
diff --git a/libs/hwui/PathTessellator.h b/libs/hwui/PathTessellator.h
index 8ac9a3b..ccae65b 100644
--- a/libs/hwui/PathTessellator.h
+++ b/libs/hwui/PathTessellator.h
@@ -82,7 +82,7 @@
             const mat4& transform, VertexBuffer& vertexBuffer);
 
     /**
-     * Approximates a convex, CW outline into a Vector of 2d vertices.
+     * Approximates a convex outline into a clockwise Vector of 2d vertices.
      *
      * @param path The outline to be approximated
      * @param thresholdSquared The threshold of acceptable error (in pixels) when approximating
diff --git a/libs/hwui/RenderNode.cpp b/libs/hwui/RenderNode.cpp
index 9146b68..c2f7234 100644
--- a/libs/hwui/RenderNode.cpp
+++ b/libs/hwui/RenderNode.cpp
@@ -768,31 +768,9 @@
     const RenderProperties& backgroundProps = backgroundOp->mRenderNode->properties();
     renderer.translate(backgroundProps.getTranslationX(), backgroundProps.getTranslationY());
 
-    // If the projection reciever has an outline, we mask each of the projected rendernodes to it
-    // Either with clipRect, or special saveLayer masking
-    if (projectionReceiverOutline != nullptr) {
-        const SkRect& outlineBounds = projectionReceiverOutline->getBounds();
-        if (projectionReceiverOutline->isRect(nullptr)) {
-            // mask to the rect outline simply with clipRect
-            ClipRectOp* clipOp = new (alloc) ClipRectOp(
-                    outlineBounds.left(), outlineBounds.top(),
-                    outlineBounds.right(), outlineBounds.bottom(), SkRegion::kIntersect_Op);
-            handler(clipOp, PROPERTY_SAVECOUNT, properties().getClipToBounds());
-        } else {
-            // wrap the projected RenderNodes with a SaveLayer that will mask to the outline
-            SaveLayerOp* op = new (alloc) SaveLayerOp(
-                    outlineBounds.left(), outlineBounds.top(),
-                    outlineBounds.right(), outlineBounds.bottom(),
-                    255, SkCanvas::kMatrix_SaveFlag | SkCanvas::kClip_SaveFlag | SkCanvas::kARGB_ClipLayer_SaveFlag);
-            op->setMask(projectionReceiverOutline);
-            handler(op, PROPERTY_SAVECOUNT, properties().getClipToBounds());
-
-            /* TODO: add optimizations here to take advantage of placement/size of projected
-             * children (which may shrink saveLayer area significantly). This is dependent on
-             * passing actual drawing/dirtying bounds of projected content down to native.
-             */
-        }
-    }
+    // If the projection reciever has an outline, we mask projected content to it
+    // (which we know, apriori, are all tessellated paths)
+    renderer.setProjectionPathMask(alloc, projectionReceiverOutline);
 
     // draw projected nodes
     for (size_t i = 0; i < mProjectedNodes.size(); i++) {
@@ -807,10 +785,8 @@
         renderer.restoreToCount(restoreTo);
     }
 
-    if (projectionReceiverOutline != nullptr) {
-        handler(new (alloc) RestoreToCountOp(restoreTo),
-                PROPERTY_SAVECOUNT, properties().getClipToBounds());
-    }
+    handler(new (alloc) RestoreToCountOp(restoreTo),
+            PROPERTY_SAVECOUNT, properties().getClipToBounds());
 }
 
 /**
diff --git a/libs/hwui/ShadowTessellator.cpp b/libs/hwui/ShadowTessellator.cpp
index fb28531..024ff10 100644
--- a/libs/hwui/ShadowTessellator.cpp
+++ b/libs/hwui/ShadowTessellator.cpp
@@ -158,71 +158,6 @@
     }
     return result;
 }
-/**
- * Test whether the polygon is order in clockwise.
- *
- * @param polygon the polygon as a Vector2 array
- * @param len the number of points of the polygon
- */
-bool ShadowTessellator::isClockwise(const Vector2* polygon, int len) {
-    if (len < 2 || polygon == nullptr) {
-        return true;
-    }
-    double sum = 0;
-    double p1x = polygon[len - 1].x;
-    double p1y = polygon[len - 1].y;
-    for (int i = 0; i < len; i++) {
-
-        double p2x = polygon[i].x;
-        double p2y = polygon[i].y;
-        sum += p1x * p2y - p2x * p1y;
-        p1x = p2x;
-        p1y = p2y;
-    }
-    return sum < 0;
-}
-
-bool ShadowTessellator::isClockwisePath(const SkPath& path) {
-    SkPath::Iter iter(path, false);
-    SkPoint pts[4];
-    SkPath::Verb v;
-
-    Vector<Vector2> arrayForDirection;
-    while (SkPath::kDone_Verb != (v = iter.next(pts))) {
-            switch (v) {
-            case SkPath::kMove_Verb:
-                arrayForDirection.add((Vector2){pts[0].x(), pts[0].y()});
-                break;
-            case SkPath::kLine_Verb:
-                arrayForDirection.add((Vector2){pts[1].x(), pts[1].y()});
-                break;
-            case SkPath::kConic_Verb:
-            case SkPath::kQuad_Verb:
-                arrayForDirection.add((Vector2){pts[1].x(), pts[1].y()});
-                arrayForDirection.add((Vector2){pts[2].x(), pts[2].y()});
-                break;
-            case SkPath::kCubic_Verb:
-                arrayForDirection.add((Vector2){pts[1].x(), pts[1].y()});
-                arrayForDirection.add((Vector2){pts[2].x(), pts[2].y()});
-                arrayForDirection.add((Vector2){pts[3].x(), pts[3].y()});
-                break;
-            default:
-                break;
-            }
-    }
-
-    return isClockwise(arrayForDirection.array(), arrayForDirection.size());
-}
-
-void ShadowTessellator::reverseVertexArray(Vertex* polygon, int len) {
-    int n = len / 2;
-    for (int i = 0; i < n; i++) {
-        Vertex tmp = polygon[i];
-        int k = len - 1 - i;
-        polygon[i] = polygon[k];
-        polygon[k] = tmp;
-    }
-}
 
 int ShadowTessellator::getExtraVertexNumber(const Vector2& vector1,
         const Vector2& vector2, float divisor) {
diff --git a/libs/hwui/ShadowTessellator.h b/libs/hwui/ShadowTessellator.h
index c04d8ef..5f4c9c5 100644
--- a/libs/hwui/ShadowTessellator.h
+++ b/libs/hwui/ShadowTessellator.h
@@ -83,23 +83,6 @@
     static bool isClockwise(const Vector2* polygon, int len);
 
     static Vector2 calculateNormal(const Vector2& p1, const Vector2& p2);
-    /**
-     * Determine whether the path is clockwise, using the control points.
-     *
-     * TODO: Given the skia is using inverted Y coordinate, shadow system needs
-     * to convert to the same coordinate to avoid the extra reverse.
-     *
-     * @param path The path to be examined.
-     */
-    static bool isClockwisePath(const SkPath &path);
-
-    /**
-     * Reverse the vertex array.
-     *
-     * @param polygon The vertex array to be reversed.
-     * @param len The length of the vertex array.
-     */
-    static void reverseVertexArray(Vertex* polygon, int len);
 
     static int getExtraVertexNumber(const Vector2& vector1, const Vector2& vector2,
             float divisor);
diff --git a/libs/hwui/Snapshot.cpp b/libs/hwui/Snapshot.cpp
index 9e7faee..beb2e1d 100644
--- a/libs/hwui/Snapshot.cpp
+++ b/libs/hwui/Snapshot.cpp
@@ -36,6 +36,7 @@
         , empty(false)
         , alpha(1.0f)
         , roundRectClipState(nullptr)
+        , projectionPathMask(nullptr)
         , mClipArea(&mClipAreaRoot) {
     transform = &mTransformRoot;
     region = nullptr;
@@ -54,6 +55,7 @@
         , empty(false)
         , alpha(s->alpha)
         , roundRectClipState(s->roundRectClipState)
+        , projectionPathMask(s->projectionPathMask)
         , mClipArea(nullptr)
         , mViewportData(s->mViewportData)
         , mRelativeLightCenter(s->mRelativeLightCenter) {
@@ -141,6 +143,34 @@
     transform->loadTranslate(x, y, z);
 }
 
+void Snapshot::buildScreenSpaceTransform(Matrix4* outTransform) const {
+    // build (reverse ordered) list of the stack of snapshots, terminated with a NULL
+    Vector<const Snapshot*> snapshotList;
+    snapshotList.push(nullptr);
+    const Snapshot* current = this;
+    do {
+        snapshotList.push(current);
+        current = current->previous.get();
+    } while (current);
+
+    // traverse the list, adding in each transform that contributes to the total transform
+    outTransform->loadIdentity();
+    for (size_t i = snapshotList.size() - 1; i > 0; i--) {
+        // iterate down the stack
+        const Snapshot* current = snapshotList[i];
+        const Snapshot* next = snapshotList[i - 1];
+        if (current->flags & kFlagIsFboLayer) {
+            // if we've hit a layer, translate by the layer's draw offset
+            outTransform->translate(current->layer->layer.left, current->layer->layer.top);
+        }
+        if (!next || (next->flags & kFlagIsFboLayer)) {
+            // if this snapshot is last, or if this snapshot is last before an
+            // FBO layer (which reset the transform), apply it
+            outTransform->multiply(*(current->transform));
+        }
+    }
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // Clipping round rect
 ///////////////////////////////////////////////////////////////////////////////
@@ -191,6 +221,18 @@
     roundRectClipState = state;
 }
 
+void Snapshot::setProjectionPathMask(LinearAllocator& allocator, const SkPath* path) {
+    if (path) {
+        ProjectionPathMask* mask = new (allocator) ProjectionPathMask;
+        mask->projectionMask = path;
+        buildScreenSpaceTransform(&(mask->projectionMaskTransform));
+
+        projectionPathMask = mask;
+    } else {
+        projectionPathMask = nullptr;
+    }
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // Queries
 ///////////////////////////////////////////////////////////////////////////////
diff --git a/libs/hwui/Snapshot.h b/libs/hwui/Snapshot.h
index 4d704ab..af6ad72 100644
--- a/libs/hwui/Snapshot.h
+++ b/libs/hwui/Snapshot.h
@@ -63,6 +63,17 @@
     float radius;
 };
 
+class ProjectionPathMask {
+public:
+    /** static void* operator new(size_t size); PURPOSELY OMITTED, allocator only **/
+    static void* operator new(size_t size, LinearAllocator& allocator) {
+        return allocator.alloc(size);
+    }
+
+    const SkPath* projectionMask;
+    Matrix4 projectionMaskTransform;
+};
+
 /**
  * A snapshot holds information about the current state of the rendering
  * surface. A snapshot is usually created whenever the user calls save()
@@ -190,6 +201,11 @@
             float radius, bool highPriority);
 
     /**
+     * Sets (and replaces) the current projection mask
+     */
+    void setProjectionPathMask(LinearAllocator& allocator, const SkPath* path);
+
+    /**
      * Indicates whether this snapshot should be ignored. A snapshot
      * is typically ignored if its layer is invisible or empty.
      */
@@ -201,6 +217,12 @@
     bool hasPerspectiveTransform() const;
 
     /**
+     * Fills outTransform with the current, total transform to screen space,
+     * across layer boundaries.
+     */
+    void buildScreenSpaceTransform(Matrix4* outTransform) const;
+
+    /**
      * Dirty flags.
      */
     int flags;
@@ -272,6 +294,11 @@
      */
     const RoundRectClipState* roundRectClipState;
 
+    /**
+     * Current projection masking path - used exclusively to mask tessellated circles.
+     */
+    const ProjectionPathMask* projectionPathMask;
+
     void dump() const;
 
 private:
diff --git a/libs/hwui/TessellationCache.cpp b/libs/hwui/TessellationCache.cpp
index fc173f7..704a691 100644
--- a/libs/hwui/TessellationCache.cpp
+++ b/libs/hwui/TessellationCache.cpp
@@ -207,6 +207,16 @@
     transformXY->mapPoint(point.x, point.y);
 }
 
+static void reverseVertexArray(Vertex* polygon, int len) {
+    int n = len / 2;
+    for (int i = 0; i < n; i++) {
+        Vertex tmp = polygon[i];
+        int k = len - 1 - i;
+        polygon[i] = polygon[k];
+        polygon[k] = tmp;
+    }
+}
+
 static void tessellateShadows(
         const Matrix4* drawTransform, const Rect* localClip,
         bool isCasterOpaque, const SkPath* casterPerimeter,
@@ -219,10 +229,9 @@
     const float casterRefinementThresholdSquared = 4.0f;
     PathTessellator::approximatePathOutlineVertices(*casterPerimeter,
             casterRefinementThresholdSquared, casterVertices2d);
-    if (!ShadowTessellator::isClockwisePath(*casterPerimeter)) {
-        ShadowTessellator::reverseVertexArray(casterVertices2d.editArray(),
-                casterVertices2d.size());
-    }
+
+    // Shadow requires CCW for now. TODO: remove potential double-reverse
+    reverseVertexArray(casterVertices2d.editArray(), casterVertices2d.size());
 
     if (casterVertices2d.size() == 0) return;
 
diff --git a/tests/HwAccelerationTest/AndroidManifest.xml b/tests/HwAccelerationTest/AndroidManifest.xml
index 8531944..10cf5c1 100644
--- a/tests/HwAccelerationTest/AndroidManifest.xml
+++ b/tests/HwAccelerationTest/AndroidManifest.xml
@@ -24,11 +24,11 @@
     <uses-feature android:name="android.hardware.camera" />
     <uses-feature android:name="android.hardware.camera.autofocus" />
 
-    <uses-sdk android:minSdkVersion="11" />
-    
+    <uses-sdk android:minSdkVersion="21" />
+
     <application
         android:label="HwUi"
-        android:hardwareAccelerated="true">
+        android:theme="@android:style/Theme.Material.Light">
 
         <activity
                 android:name="HwTests"
@@ -42,8 +42,7 @@
 
         <activity
                 android:name="PathOpsActivity"
-                android:label="Path/Ops"
-                android:theme="@android:style/Theme.Holo.Light">
+                android:label="Path/Ops">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="com.android.test.hwui.TEST" />
@@ -52,8 +51,7 @@
 
         <activity
                 android:name="AssetsAtlasActivity"
-                android:label="Atlas/Framework"
-                android:theme="@android:style/Theme.Holo.Light">
+                android:label="Atlas/Framework">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="com.android.test.hwui.TEST" />
@@ -62,8 +60,7 @@
 
         <activity
                 android:name="ScaledTextActivity"
-                android:label="Text/Scaled"
-                android:theme="@android:style/Theme.Holo.Light">
+                android:label="Text/Scaled">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="com.android.test.hwui.TEST" />
@@ -72,8 +69,7 @@
 
         <activity
                 android:name="Rotate3dTextActivity"
-                android:label="Text/3D Rotation"
-                android:theme="@android:style/Theme.Holo.Light">
+                android:label="Text/3D Rotation">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="com.android.test.hwui.TEST" />