mirror of https://github.com/axmolengine/axmol.git
57 lines
2.4 KiB
C
57 lines
2.4 KiB
C
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/* libs/graphics/animator/SkOperandInterpolator.h
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**
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** Copyright 2006, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#ifndef SkOperandInterpolator_DEFINED
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#define SkOperandInterpolator_DEFINED
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#include "SkDisplayType.h"
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#include "SkInterpolator.h"
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#include "SkOperand.h"
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class SkOperandInterpolator : public SkInterpolatorBase {
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public:
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SkOperandInterpolator();
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SkOperandInterpolator(int elemCount, int frameCount, SkDisplayTypes type);
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SkOperand* getValues() { return fValues; }
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int getValuesCount() { return fFrameCount * fElemCount; }
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void reset(int elemCount, int frameCount, SkDisplayTypes type);
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/** Add or replace a key frame, copying the values[] data into the interpolator.
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@param index The index of this frame (frames must be ordered by time)
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@param time The millisecond time for this frame
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@param values The array of values [elemCount] for this frame. The data is copied
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into the interpolator.
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@param blend A positive scalar specifying how to blend between this and the next key frame.
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[0...1) is a cubic lag/log/lag blend (slow to change at the beginning and end)
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1 is a linear blend (default)
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(1...inf) is a cubic log/lag/log blend (fast to change at the beginning and end)
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*/
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bool setKeyFrame(int index, SkMSec time, const SkOperand values[], SkScalar blend = SK_Scalar1);
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Result timeToValues(SkMSec time, SkOperand values[]) const;
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SkDEBUGCODE(static void UnitTest();)
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private:
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SkDisplayTypes fType;
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SkOperand* fValues; // pointer into fStorage
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#ifdef SK_DEBUG
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SkOperand(* fValuesArray)[10];
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#endif
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typedef SkInterpolatorBase INHERITED;
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};
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#endif // SkOperandInterpolator_DEFINED
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