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| 1 /* libs/graphics/animator/SkOperandInterpolator.h | |
| 2 ** | |
| 3 ** Copyright 2006, The Android Open Source Project | |
| 4 ** | |
| 5 ** Licensed under the Apache License, Version 2.0 (the "License"); | |
| 6 ** you may not use this file except in compliance with the License. | |
| 7 ** You may obtain a copy of the License at | |
| 8 ** | |
| 9 ** http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 ** | |
| 11 ** Unless required by applicable law or agreed to in writing, software | |
| 12 ** distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 ** See the License for the specific language governing permissions and | |
| 15 ** limitations under the License. | |
| 16 */ | |
| 17 | |
| 18 #ifndef SkOperandInterpolator_DEFINED | |
| 19 #define SkOperandInterpolator_DEFINED | |
| 20 | |
| 21 #include "SkDisplayType.h" | |
| 22 #include "SkInterpolator.h" | |
| 23 #include "SkOperand.h" | |
| 24 | |
| 25 class SkOperandInterpolator : public SkInterpolatorBase { | |
| 26 public: | |
| 27 SkOperandInterpolator(); | |
| 28 SkOperandInterpolator(int elemCount, int frameCount, SkDisplayTypes type); | |
| 29 SkOperand* getValues() { return fValues; } | |
| 30 int getValuesCount() { return fFrameCount * fElemCount; } | |
| 31 void reset(int elemCount, int frameCount, SkDisplayTypes type); | |
| 32 | |
| 33 /** Add or replace a key frame, copying the values[] data into the interpola
tor. | |
| 34 @param index The index of this frame (frames must be ordered by time) | |
| 35 @param time The millisecond time for this frame | |
| 36 @param values The array of values [elemCount] for this frame. The data
is copied | |
| 37 into the interpolator. | |
| 38 @param blend A positive scalar specifying how to blend between this a
nd the next key frame. | |
| 39 [0...1) is a cubic lag/log/lag blend (slow to change at
the beginning and end) | |
| 40 1 is a linear blend (default) | |
| 41 (1...inf) is a cubic log/lag/log blend (fast to change a
t the beginning and end) | |
| 42 */ | |
| 43 bool setKeyFrame(int index, SkMSec time, const SkOperand values[], SkScal
ar blend = SK_Scalar1); | |
| 44 Result timeToValues(SkMSec time, SkOperand values[]) const; | |
| 45 SkDEBUGCODE(static void UnitTest();) | |
| 46 private: | |
| 47 SkDisplayTypes fType; | |
| 48 SkOperand* fValues; // pointer into fStorage | |
| 49 #ifdef SK_DEBUG | |
| 50 SkOperand(* fValuesArray)[10]; | |
| 51 #endif | |
| 52 typedef SkInterpolatorBase INHERITED; | |
| 53 }; | |
| 54 | |
| 55 #endif // SkOperandInterpolator_DEFINED | |
| 56 | |
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