Minor cleanup of clip mask manager

src/gpu/GrClipMaskManager.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrClipMaskManager.h"
 #include "GrCaps.h"
 #include "GrDrawingManager.h"
@@ skipping 571 matching lines @@
     // pass must not set values outside of this bounds or stencil values outside the rect won't be
     // cleared.
     const GrClip clip(maskSpaceIBounds);
 
     // walk through each clip element and perform its set op
     for (GrReducedClip::ElementList::Iter iter = elements.headIter(); iter.get(); iter.next()) {
         const Element* element = iter.get();
         SkRegion::Op op = element->getOp();
         bool invert = element->isInverseFilled();
         if (invert || SkRegion::kIntersect_Op == op || SkRegion::kReverseDifference_Op == op) {
-            GrPipelineBuilder pipelineBuilder;
 
-            pipelineBuilder.setClip(clip);
-            pipelineBuilder.setRenderTarget(texture->asRenderTarget());
-
-            SkASSERT(pipelineBuilder.getStencil().isDisabled());
             GrPathRenderer* pr = GetPathRenderer(this->getContext(),
                                                  texture, translate, element);
             if (Element::kRect_Type != element->getType() && !pr) {
                 // useSWOnlyPath should now filter out all cases where gpu-side mask merging would
                 // be performed (i.e., pr would be NULL for a non-rect path). See skbug.com/4519
                 // for rationale and details.
                 SkASSERT(0);
                 continue;
             }
 
-            // draw directly into the result with the stencil set to make the pixels affected
-            // by the clip shape be non-zero.
-            GR_STATIC_CONST_SAME_STENCIL(kStencilInElement,
-                                         kReplace_StencilOp,
-                                         kReplace_StencilOp,
-                                         kAlways_StencilFunc,
-                                         0xffff,
-                                         0xffff,
-                                         0xffff);
-            pipelineBuilder.setStencil(kStencilInElement);
-            set_coverage_drawing_xpf(op, invert, &pipelineBuilder);
+            {
+                GrPipelineBuilder pipelineBuilder;
 
-            if (!this->drawElement(&pipelineBuilder, translate, texture, element, pr)) {
-                texture->resourcePriv().removeUniqueKey();
-                return nullptr;
+                pipelineBuilder.setClip(clip);
+                pipelineBuilder.setRenderTarget(texture->asRenderTarget());
+                SkASSERT(pipelineBuilder.getStencil().isDisabled());
+
+                // draw directly into the result with the stencil set to make the pixels affected
+                // by the clip shape be non-zero.
+                GR_STATIC_CONST_SAME_STENCIL(kStencilInElement,
+                                             kReplace_StencilOp,
+                                             kReplace_StencilOp,
+                                             kAlways_StencilFunc,
+                                             0xffff,
+                                             0xffff,
+                                             0xffff);
+                pipelineBuilder.setStencil(kStencilInElement);
+                set_coverage_drawing_xpf(op, invert, &pipelineBuilder);
+
+                if (!this->drawElement(&pipelineBuilder, translate, texture, element, pr)) {
+                    texture->resourcePriv().removeUniqueKey();
+                    return nullptr;
+                }
             }
 
             {
                 GrPipelineBuilder backgroundPipelineBuilder;
                 backgroundPipelineBuilder.setRenderTarget(texture->asRenderTarget());
 
                 set_coverage_drawing_xpf(op, !invert, &backgroundPipelineBuilder);
                 // Draw to the exterior pixels (those with a zero stencil value).
                 GR_STATIC_CONST_SAME_STENCIL(kDrawOutsideElement,
                                              kZero_StencilOp,
@@ skipping 460 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
 void GrClipMaskManager::adjustPathStencilParams(const GrStencilAttachment* stencilAttachment,
                                                 GrStencilSettings* settings) {
     if (stencilAttachment) {
         int stencilBits = stencilAttachment->bits();
         this->adjustStencilParams(settings, fClipMode, stencilBits);
     }
 }