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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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