expose api to count the number of ops in a picture

include/core/SkPicture.h

 
 /*
  * Copyright 2007 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkPicture_DEFINED
@@ skipping 179 matching lines @@
 #endif
 
     class DeletionListener : public SkRefCnt {
     public:
         virtual void onDeletion(uint32_t pictureID) = 0;
     };
 
     // Takes ref on listener.
     void addDeletionListener(DeletionListener* listener) const;
 
+    /**
+     *  Return the approximate number of "operations" in the picture. This number is hard to nail
+     *  down precisely, since there is not always a 1-to-1 correspondence between "operations" in
+     *  the internal format, and public API calls on SkCanvas. It is also possible that the value
+     *  returned may chage, as deferred optimizations may vary the count.
+     */
+    int countOps() const;
+
 private:
     // V2 : adds SkPixelRef's generation ID.
     // V3 : PictInfo tag at beginning, and EOF tag at the end
     // V4 : move SkPictInfo to be the header
     // V5 : don't read/write FunctionPtr on cross-process (we can detect that)
     // V6 : added serialization of SkPath's bounds (and packed its flags tighter)
     // V7 : changed drawBitmapRect(IRect) to drawBitmapRectToRect(Rect)
     // V8 : Add an option for encoding bitmaps
     // V9 : Allow the reader and writer of an SKP disagree on whether to support
     //      SK_SUPPORT_HINTING_SCALE_FACTOR
@@ skipping 81 matching lines @@
 
     // Takes ownership of the SkRecord, refs the (optional) BBH.
     SkPicture(int width, int height, SkRecord*, SkBBoxHierarchy*);
 
     SkAutoTDelete<SkRecord>       fRecord;
     SkAutoTUnref<SkBBoxHierarchy> fBBH;
     bool fRecordWillPlayBackBitmaps; // TODO: const
 };
 
 #endif