1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/animator/SkOperandInterpolator.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,47 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2006 The Android Open Source Project
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +
1.12 +
1.13 +#ifndef SkOperandInterpolator_DEFINED
1.14 +#define SkOperandInterpolator_DEFINED
1.15 +
1.16 +#include "SkDisplayType.h"
1.17 +#include "SkInterpolator.h"
1.18 +#include "SkOperand.h"
1.19 +
1.20 +class SkOperandInterpolator : public SkInterpolatorBase {
1.21 +public:
1.22 + SkOperandInterpolator();
1.23 + SkOperandInterpolator(int elemCount, int frameCount, SkDisplayTypes type);
1.24 + SkOperand* getValues() { return fValues; }
1.25 + int getValuesCount() { return fFrameCount * fElemCount; }
1.26 + void reset(int elemCount, int frameCount, SkDisplayTypes type);
1.27 +
1.28 + /** Add or replace a key frame, copying the values[] data into the interpolator.
1.29 + @param index The index of this frame (frames must be ordered by time)
1.30 + @param time The millisecond time for this frame
1.31 + @param values The array of values [elemCount] for this frame. The data is copied
1.32 + into the interpolator.
1.33 + @param blend A positive scalar specifying how to blend between this and the next key frame.
1.34 + [0...1) is a cubic lag/log/lag blend (slow to change at the beginning and end)
1.35 + 1 is a linear blend (default)
1.36 + (1...inf) is a cubic log/lag/log blend (fast to change at the beginning and end)
1.37 + */
1.38 + bool setKeyFrame(int index, SkMSec time, const SkOperand values[], SkScalar blend = SK_Scalar1);
1.39 + Result timeToValues(SkMSec time, SkOperand values[]) const;
1.40 + SkDEBUGCODE(static void UnitTest();)
1.41 +private:
1.42 + SkDisplayTypes fType;
1.43 + SkOperand* fValues; // pointer into fStorage
1.44 +#ifdef SK_DEBUG
1.45 + SkOperand(* fValuesArray)[10];
1.46 +#endif
1.47 + typedef SkInterpolatorBase INHERITED;
1.48 +};
1.49 +
1.50 +#endif // SkOperandInterpolator_DEFINED
