Complex clipPath accounting

src/core/SkPictureAnalyzer.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
+#include "SkPath.h"
 #include "SkPicture.h"
 #include "SkPictureAnalyzer.h"
+#include "SkPictureCommon.h"
+#include "SkRecords.h"
 
 #if SK_SUPPORT_GPU
 
 namespace {
 
 inline bool veto_predicate(uint32_t numSlowPaths) {
     return numSlowPaths > 5;
 }
 
 } // anonymous namespace
 
 SkPictureGpuAnalyzer::SkPictureGpuAnalyzer(sk_sp<GrContextThreadSafeProxy> /* unused ATM */)
     : fNumSlowPaths(0) { }
 
 SkPictureGpuAnalyzer::SkPictureGpuAnalyzer(const sk_sp<SkPicture>& picture,
                                            sk_sp<GrContextThreadSafeProxy> ctx)
     : SkPictureGpuAnalyzer(std::move(ctx)) {
     this->analyze(picture.get());
 }
 
-void SkPictureGpuAnalyzer::analyze(const SkPicture* picture) {
+void SkPictureGpuAnalyzer::analyzePicture(const SkPicture* picture) {
     if (!picture || veto_predicate(fNumSlowPaths)) {
         return;
     }
 
     fNumSlowPaths += picture->numSlowPaths();
 }
 
+void SkPictureGpuAnalyzer::analyzeClipPath(const SkPath& path, SkRegion::Op op, bool doAntiAlias) {
+    if (veto_predicate(fNumSlowPaths)) {
+        return;
+    }
+
+    const SkRecords::ClipPath clipOp = {
+        SkIRect::MakeEmpty(), // Willie don't care.
+        path,
+        SkRecords::RegionOpAndAA(op, doAntiAlias)
+    };
+
+    SkPathCounter counter;
+    counter(clipOp);
+    fNumSlowPaths += counter.fNumSlowPathsAndDashEffects;
+}
+
 void SkPictureGpuAnalyzer::reset() {
     fNumSlowPaths = 0;
 }
 
 bool SkPictureGpuAnalyzer::suitableForGpuRasterization(const char** whyNot) const {
     if(veto_predicate(fNumSlowPaths)) {
         if (whyNot) { *whyNot = "Too many slow paths (either concave or dashed)."; }
         return false;
     }
     return true;
 }
 
 #endif // SK_SUPPORT_GPU