sbl::dsp::WavetableReader< Size > Class Template Reference

#include <wavetable.hpp>

Inheritance diagram for sbl::dsp::WavetableReader< Size >:

Collaboration diagram for sbl::dsp::WavetableReader< Size >:

Public Member Functions
void	set_table (const float *table)
	Set the wavetable to read from (must have Size+1 guard points for linear)
const float *	table () const
	Current table pointer.
float	read (uint32_t phase) const
	Read a single sample with linear interpolation.
float	read_cubic (uint32_t phase) const
	Read a single sample with cubic Hermite interpolation.
void	read_block (const uint32_t *phases, float *out, uint16_t frames) const
	Read a block of samples using linear interpolation.

Detailed Description

template<uint16_t Size>
class sbl::dsp::WavetableReader< Size >

Definition at line 24 of file wavetable.hpp.

Member Function Documentation

read()

template<uint16_t Size>

float sbl::dsp::WavetableReader< Size >::read ( uint32_t  phase ) const

inline

Read a single sample with linear interpolation.

Parameters

phase

32-bit phase (full range = one table cycle)

Returns

Interpolated sample value in [-1.0, 1.0]

Definition at line 39 of file wavetable.hpp.

References sbl::dsp::lut::lookup_linear().

Referenced by sbl::widgets::mod::Lfo< TableSize >::process(), sbl::widgets::source::WavetableOsc< TableSize >::process(), and sbl::widgets::mod::Lfo< TableSize >::value().

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read_block()

template<uint16_t Size>

void sbl::dsp::WavetableReader< Size >::read_block ( const uint32_t *  phases, float *  out, uint16_t  frames  ) const

inline

Read a block of samples using linear interpolation.

Parameters

phases	Array of per-sample phase values
out	Output sample buffer
frames	Number of frames to process

Definition at line 58 of file wavetable.hpp.

References sbl::dsp::lut::lookup_linear().

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read_cubic()

template<uint16_t Size>

float sbl::dsp::WavetableReader< Size >::read_cubic ( uint32_t  phase ) const

inline

Read a single sample with cubic Hermite interpolation.

Parameters

phase

32-bit phase

Returns

Interpolated sample value (smoother, higher cost)

Definition at line 48 of file wavetable.hpp.

References sbl::dsp::lut::lookup_linear().

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set_table()

template<uint16_t Size>

void sbl::dsp::WavetableReader< Size >::set_table ( const float *  table )

inline

Set the wavetable to read from (must have Size+1 guard points for linear)

Note

All public methods are ISR-safe — bounded computation, no I/O.

Definition at line 29 of file wavetable.hpp.

References sbl::dsp::WavetableReader< Size >::table().

Referenced by sbl::widgets::mod::Lfo< TableSize >::set_wavetable(), and sbl::widgets::source::WavetableOsc< TableSize >::set_wavetable().

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table()

template<uint16_t Size>

const float * sbl::dsp::WavetableReader< Size >::table ( ) const

inline

Current table pointer.

Definition at line 32 of file wavetable.hpp.

Referenced by sbl::dsp::WavetableReader< Size >::set_table().

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The documentation for this class was generated from the following file:

• src/sbl/dsp/wavetable.hpp