diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/src/animator/SkOperandInterpolator.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/src/animator/SkOperandInterpolator.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,47 @@
+
+/*
+ * Copyright 2006 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 SkOperandInterpolator_DEFINED
+#define SkOperandInterpolator_DEFINED
+
+#include "SkDisplayType.h"
+#include "SkInterpolator.h"
+#include "SkOperand.h"
+
+class SkOperandInterpolator : public SkInterpolatorBase {
+public:
+    SkOperandInterpolator();
+    SkOperandInterpolator(int elemCount, int frameCount, SkDisplayTypes type);
+    SkOperand* getValues() { return fValues; }
+    int getValuesCount() { return fFrameCount * fElemCount; }
+    void    reset(int elemCount, int frameCount, SkDisplayTypes type);
+
+    /** Add or replace a key frame, copying the values[] data into the interpolator.
+        @param index    The index of this frame (frames must be ordered by time)
+        @param time The millisecond time for this frame
+        @param values   The array of values [elemCount] for this frame. The data is copied
+                        into the interpolator.
+        @param blend    A positive scalar specifying how to blend between this and the next key frame.
+                        [0...1) is a cubic lag/log/lag blend (slow to change at the beginning and end)
+                        1 is a linear blend (default)
+                        (1...inf) is a cubic log/lag/log blend (fast to change at the beginning and end)
+    */
+    bool    setKeyFrame(int index, SkMSec time, const SkOperand values[], SkScalar blend = SK_Scalar1);
+    Result timeToValues(SkMSec time, SkOperand values[]) const;
+    SkDEBUGCODE(static void UnitTest();)
+private:
+    SkDisplayTypes fType;
+    SkOperand* fValues;     // pointer into fStorage
+#ifdef SK_DEBUG
+    SkOperand(* fValuesArray)[10];
+#endif
+    typedef SkInterpolatorBase INHERITED;
+};
+
+#endif // SkOperandInterpolator_DEFINED