add '--mode clone' option to bench_pictures

git-svn-id: http://skia.googlecode.com/svn/trunk@6735 2bbb7eff-a529-9590-31e7-b0007b416f81

tools/PictureRenderer.cpp

@@ -669,10 +669,10 @@ public:
                                        SkIntToScalar(fPicture->height()));
         SkData* data = SkPictureUtils::GatherPixelRefs(fPicture, bounds);
         SkSafeUnref(data);
-
+        
         return NULL == path;    // we don't have anything to write
     }
-
+    
 private:
     virtual SkString getConfigNameInternal() SK_OVERRIDE {
         return SkString("gather_pixelrefs");
@@ -683,4 +683,27 @@ PictureRenderer* CreateGatherPixelRefsRenderer() {
     return SkNEW(GatherRenderer);
 }
 
+///////////////////////////////////////////////////////////////////////////////
+
+class PictureCloneRenderer : public PictureRenderer {
+public:
+    virtual bool render(const SkString* path) SK_OVERRIDE {
+        for (int i = 0; i < 100; ++i) {
+            SkPicture* clone = fPicture->clone();
+            SkSafeUnref(clone);
+        }
+        
+        return NULL == path;    // we don't have anything to write
+    }
+    
+private:
+    virtual SkString getConfigNameInternal() SK_OVERRIDE {
+        return SkString("picture_clone");
+    }
+};
+
+PictureRenderer* CreatePictureCloneRenderer() {
+    return SkNEW(PictureCloneRenderer);
+}
+
 } // namespace sk_tools

tools/PictureRenderer.h

@@ -368,6 +368,7 @@ private:
 };
 
 extern PictureRenderer* CreateGatherPixelRefsRenderer();
+extern PictureRenderer* CreatePictureCloneRenderer();
 
 }
 

tools/bench_pictures_main.cpp

@@ -378,6 +378,8 @@ static void parse_commandline(int argc, char* const argv[], SkTArray<SkString>*
             if (0 == strcmp(*argv, "record")) {
                 renderer.reset(SkNEW(sk_tools::RecordPictureRenderer));
                 gridSupported = true;
+            } else if (0 == strcmp(*argv, "clone")) {
+                renderer.reset(sk_tools::CreatePictureCloneRenderer());
             } else if (0 == strcmp(*argv, "simple")) {
                 renderer.reset(SkNEW(sk_tools::SimplePictureRenderer));
             } else if ((0 == strcmp(*argv, "tile")) || (0 == strcmp(*argv, "pow2tile"))