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| SineWave (void) |
| | Default constructor.
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| ~SineWave (void) |
| | Class destructor.
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void | reset (void) |
| | Clear output and reset time pointer to zero.
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| void | setRate (StkFloat rate) |
| | Set the data read rate in samples. The rate can be negative. More...
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| void | setFrequency (StkFloat frequency) |
| | Set the data interpolation rate based on a looping frequency. More...
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void | addTime (StkFloat time) |
| | Increment the read pointer by time in samples, modulo the table size.
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| void | addPhase (StkFloat phase) |
| | Increment the read pointer by a normalized phase value. More...
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| void | addPhaseOffset (StkFloat phaseOffset) |
| | Add a normalized phase offset to the read pointer. More...
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StkFloat | lastOut (void) const |
| | Return the last computed output value.
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StkFloat | tick (void) |
| | Compute and return one output sample.
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| StkFrames & | tick (StkFrames &frames, unsigned int channel=0) |
| | Fill a channel of the StkFrames object with computed outputs. More...
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unsigned int | channelsOut (void) const |
| | Return the number of output channels for the class.
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const StkFrames & | lastFrame (void) const |
| | Return an StkFrames reference to the last output sample frame.
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| void | ignoreSampleRateChange (bool ignore=true) |
| | A function to enable/disable the automatic updating of class data when the STK sample rate changes. More...
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static StkFloat | sampleRate (void) |
| | Static method that returns the current STK sample rate.
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| static void | setSampleRate (StkFloat rate) |
| | Static method that sets the STK sample rate. More...
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static void | clear_alertList () |
| | Static method that frees memory from alertList_.
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static std::string | rawwavePath (void) |
| | Static method that returns the current rawwave path.
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static void | setRawwavePath (std::string path) |
| | Static method that sets the STK rawwave path.
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static void | swap16 (unsigned char *ptr) |
| | Static method that byte-swaps a 16-bit data type.
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static void | swap32 (unsigned char *ptr) |
| | Static method that byte-swaps a 32-bit data type.
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static void | swap64 (unsigned char *ptr) |
| | Static method that byte-swaps a 64-bit data type.
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static void | sleep (unsigned long milliseconds) |
| | Static cross-platform method to sleep for a number of milliseconds.
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static bool | inRange (StkFloat value, StkFloat min, StkFloat max) |
| | Static method to check whether a value is within a specified range.
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static void | handleError (const char *message, StkError::Type type) |
| | Static function for error reporting and handling using c-strings.
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static void | handleError (std::string message, StkError::Type type) |
| | Static function for error reporting and handling using c++ strings.
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static void | showWarnings (bool status) |
| | Toggle display of WARNING and STATUS messages.
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static void | printErrors (bool status) |
| | Toggle display of error messages before throwing exceptions.
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STK sinusoid oscillator class.
This class computes and saves a static sine "table" that can be shared by multiple instances. It has an interface similar to the WaveLoop class but inherits from the Generator class. Output values are computed using linear interpolation.
The "table" length, set in SineWave.h, is 2048 samples by default.
by Perry R. Cook and Gary P. Scavone, 1995–2019.
Fill a channel of the StkFrames object with computed outputs.
The channel argument must be less than the number of channels in the StkFrames argument (the first channel is specified by 0). However, range checking is only performed if STK_DEBUG is defined during compilation, in which case an out-of-range value will trigger an StkError exception.
Implements stk::Generator.
122 #if defined(_STK_DEBUG_)
123 if ( channel >= frames.channels() ) {
124 oStream_ <<
"SineWave::tick(): channel and StkFrames arguments are incompatible!";
129 StkFloat *samples = &frames[channel];
132 unsigned int hop = frames.channels();
133 for (
unsigned int i=0; i<frames.frames(); i++, samples += hop ) {
137 while ( time_ < 0.0 )
139 while ( time_ >= TABLE_SIZE )
142 iIndex_ = (
unsigned int) time_;
143 alpha_ = time_ - iIndex_;
144 tmp = table_[ iIndex_ ];
145 tmp += ( alpha_ * ( table_[ iIndex_ + 1 ] - tmp ) );
static void handleError(const char *message, StkError::Type type)
Static function for error reporting and handling using c-strings.
| static void stk::Stk::setSampleRate |
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StkFloat |
rate | ) |
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staticinherited |
Static method that sets the STK sample rate.
The sample rate set using this method is queried by all STK classes that depend on its value. It is initialized to the default SRATE set in Stk.h. Many STK classes use the sample rate during instantiation. Therefore, if you wish to use a rate that is different from the default rate, it is imperative that it be set BEFORE STK objects are instantiated. A few classes that make use of the global STK sample rate are automatically notified when the rate changes so that internal class data can be appropriately updated. However, this has not been fully implemented. Specifically, classes that appropriately update their own data when either a setFrequency() or noteOn() function is called do not currently receive the automatic notification of rate change. If the user wants a specific class instance to ignore such notifications, perhaps in a multi-rate context, the function Stk::ignoreSampleRateChange() should be called.
