Class thl::dsp::utils::ParameterInterpolator#

class ParameterInterpolator#

RAII wrapper around LinearRamp that commits the final ramp state on scope exit.

This preserves the classic Mutable Instruments ParameterInterpolator convenience pattern while exposing a reusable LinearRamp implementation. The referenced state is updated in the destructor to the ramp’s current position (typically the next block start value after consuming the block).

Public Functions

inline ParameterInterpolator(float &state, float new_value, size_t size) noexcept#

Create an interpolator bound to a persistent parameter state.

Parameters:

  • state – In/out parameter state carried across audio blocks.

  • new_value – Target value to approach over the current block.

  • size – Number of samples in the block.

inline ~ParameterInterpolator() noexcept#

Commit the ramp position back to the referenced state.

ParameterInterpolator(const ParameterInterpolator&) = delete#
ParameterInterpolator &operator=(const ParameterInterpolator&) = delete#
ParameterInterpolator(ParameterInterpolator&&) = delete#
ParameterInterpolator &operator=(ParameterInterpolator&&) = delete#
inline float next() noexcept#

Advance one step and return the interpolated value.

inline float at_offset(float t) const noexcept#

Return a value at a fractional offset from the current interpolator position.