Jamoma API  0.6.0.a19
TTQuadraticEaseInOutFunction.cpp
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1 /** @file
2  *
3  * @ingroup dspFunctionLib
4  *
5  * @brief #TTQuadraticEaseInOutFunction Unit for Jamoms DSP
6  *
7  * @details Modeled after the piecewise quadratic @n
8  y = (1/2)((2x)^2) ; [0, 0.5) @n
9  y = -(1/2)((2x-1)*(2x-3) - 1) ; [0.5, 1] @n
10  * @n
11  * Derived from Sam Hocevar's public domain C/C++ implementation of
12  * Robert Penner easing functions
13  *
14  * @authors Trond Lossius
15  *
16  * @copyright Copyright © 2014 by Trond Lossius @n
17  * This code is licensed under the terms of the "New BSD License" @n
18  * http://creativecommons.org/licenses/BSD/
19  */
20 
21 
23 
24 #define thisTTClass TTQuadraticEaseInOutFunction
25 #define thisTTClassName "easeInOutQuadratic"
26 #define thisTTClassTags "dspFunctionLib, audio, processor, function"
27 
28 
29 TT_AUDIO_CONSTRUCTOR
30 {
31  setProcessMethod(processAudio);
32  setCalculateMethod(calculateValue);
33 }
34 
35 
36 TTQuadraticEaseInOutFunction::~TTQuadraticEaseInOutFunction()
37 {
38  ;
39 }
40 
41 
43 {
44  if (x < 0.5)
45  {
46  y = 2 * x * x;
47  }
48  else
49  {
50  y = (-2 * x * x) + (4 * x) - 1;
51  }
52  return kTTErrNone;
53 }
54 
55 
57 {
58  TT_WRAP_CALCULATE_METHOD(calculateValue);
59 }
60 
#define setProcessMethod(methodName)
A convenience macro to be used by subclasses for setting the process method.
double TTFloat64
64 bit floating point number
Definition: TTBase.h:188
#define setCalculateMethod(methodName)
A convenience macro to be used by subclasses for setting the calculate method.
TTQuadraticEaseInOutFunction Unit for Jamoms DSP
A simple container for an array of TTAudioSignal pointers.
TTErr calculateValue(const TTFloat64 &x, TTFloat64 &y, TTPtrSizedInt data)
y = f(x) for a single value
long TTPtrSizedInt
An integer that is the same size as a pointer.
Definition: TTBase.h:240
TTErr
Jamoma Error Codes Enumeration of error codes that might be returned by any of the TTBlue functions a...
Definition: TTBase.h:342
No Error.
Definition: TTBase.h:343
TTErr processAudio(TTAudioSignalArrayPtr inputs, TTAudioSignalArrayPtr outputs)
A standard audio processing method as used by TTBlue objects.