Classes
struct	Vec

struct	Vec< T, 1 >

Functions
void	addWithGain (float DSPARK_RESTRICT dst, const float DSPARK_RESTRICT src, float gain, int count) noexcept
	Adds source samples scaled by a gain factor into a destination buffer.

void	addWithGain (double DSPARK_RESTRICT dst, const double DSPARK_RESTRICT src, double gain, int count) noexcept
	Double overload.

void	applyGain (float *DSPARK_RESTRICT data, float gain, int count) noexcept
	Multiplies all samples in a buffer by a gain factor.

void	applyGain (double *DSPARK_RESTRICT data, double gain, int count) noexcept
	Double overload.

float	peakLevel (const float *DSPARK_RESTRICT data, int count) noexcept
	Returns the peak absolute sample value in a buffer.

double	peakLevel (const double *DSPARK_RESTRICT data, int count) noexcept
	Double overload. NaN samples are ignored, as in the float version.

float	dotProduct (const float DSPARK_RESTRICT a, const float DSPARK_RESTRICT b, int count) noexcept
	Computes the dot product of two arrays.

double	dotProduct (const double DSPARK_RESTRICT a, const double DSPARK_RESTRICT b, int count) noexcept
	Double overload.

void	add (float DSPARK_RESTRICT dst, const float DSPARK_RESTRICT src, int count) noexcept
	Adds source samples into a destination buffer (no scaling).

void	add (double DSPARK_RESTRICT dst, const double DSPARK_RESTRICT src, int count) noexcept
	Double overload.

void	multiply (float DSPARK_RESTRICT dst, const float DSPARK_RESTRICT a, const float *DSPARK_RESTRICT b, int count) noexcept
	Element-wise product of two buffers into a destination.

void	multiply (double DSPARK_RESTRICT dst, const double DSPARK_RESTRICT a, const double *DSPARK_RESTRICT b, int count) noexcept
	Double overload.

void	copyWithGain (float DSPARK_RESTRICT dst, const float DSPARK_RESTRICT src, float gain, int count) noexcept
	Copies a buffer applying a gain factor (out-of-place).

void	copyWithGain (double DSPARK_RESTRICT dst, const double DSPARK_RESTRICT src, double gain, int count) noexcept
	Double overload.

void	applyGainRamp (float *DSPARK_RESTRICT data, float gainStart, float gainEnd, int count) noexcept
	In-place linear gain ramp (the canonical click-free fade primitive).

void	applyGainRamp (double *DSPARK_RESTRICT data, double gainStart, double gainEnd, int count) noexcept
	Double overload.

void	addWithGainRamp (float DSPARK_RESTRICT dst, const float DSPARK_RESTRICT src, float gainStart, float gainEnd, int count) noexcept
	Adds source samples scaled by a linear gain ramp into a destination.

void	addWithGainRamp (double DSPARK_RESTRICT dst, const double DSPARK_RESTRICT src, double gainStart, double gainEnd, int count) noexcept
	Double overload.

float	sumOfSquares (const float *DSPARK_RESTRICT data, int count) noexcept
	Returns the sum of squared samples (energy).

double	sumOfSquares (const double *DSPARK_RESTRICT data, int count) noexcept
	Double overload.

void	complexMulAccum (float DSPARK_RESTRICT accum, const float DSPARK_RESTRICT a, const float *DSPARK_RESTRICT b, int bins) noexcept
	Complex multiply-accumulate over interleaved [re, im, ...] spectra.

void	complexMulAccum (double DSPARK_RESTRICT accum, const double DSPARK_RESTRICT a, const double *DSPARK_RESTRICT b, int bins) noexcept
	Double overload (scalar on purpose: double spectra are an offline path).

template<typename T >
void	addWithGainT (T DSPARK_RESTRICT dst, const T DSPARK_RESTRICT src, T gain, int count) noexcept

template<typename T >
void	applyGainT (T *DSPARK_RESTRICT data, T gain, int count) noexcept

template<typename T >
T	peakLevelT (const T *DSPARK_RESTRICT data, int count) noexcept

template<typename T >
T	dotProductT (const T DSPARK_RESTRICT a, const T DSPARK_RESTRICT b, int count) noexcept

template<typename T >
void	addT (T DSPARK_RESTRICT dst, const T DSPARK_RESTRICT src, int count) noexcept

template<typename T >
void	multiplyT (T DSPARK_RESTRICT dst, const T DSPARK_RESTRICT a, const T *DSPARK_RESTRICT b, int count) noexcept

template<typename T >
void	copyWithGainT (T DSPARK_RESTRICT dst, const T DSPARK_RESTRICT src, T gain, int count) noexcept

template<typename T >
T	sumOfSquaresT (const T *DSPARK_RESTRICT data, int count) noexcept

template<typename T >
void	applyGainRampT (T *DSPARK_RESTRICT data, T gainStart, T gainEnd, int count) noexcept

template<typename T >
void	addWithGainRampT (T DSPARK_RESTRICT dst, const T DSPARK_RESTRICT src, T gainStart, T gainEnd, int count) noexcept

template<typename T >
void	firCorrelate (const T x, const T h, int taps, T *DSPARK_RESTRICT y, int n, T gain) noexcept
	Block FIR as a valid correlation: y[i] = gain * sum_j h[j] * x[i + j] for i in [0, n), reading x[0 .. n + taps - 1).

Variables
constexpr int	kVecFloatNarrow = 1

constexpr int	kVecDoubleNarrow = 1

constexpr int	kVecFloatWide = kVecFloatNarrow

constexpr int	kVecDoubleWide = kVecDoubleNarrow

template<typename T >
constexpr int	kVecWidth = std::is_same_v<T, float> ? kVecFloatWide : kVecDoubleWide
	Widest vector width for T on this target (1 = scalar).

template<typename T >
constexpr int	kVecNarrowWidth = std::is_same_v<T, float> ? kVecFloatNarrow : kVecDoubleNarrow
	The next width down (the SSE2/NEON width in AVX builds).

Function Documentation

◆ add() [1/2]

void dspark::simd::add	(	double *DSPARK_RESTRICT	dst,
		const double *DSPARK_RESTRICT	src,
		int	count
	)

inlinenoexcept

Double overload.

Definition at line 646 of file SimdOps.h.

◆ add() [2/2]

void dspark::simd::add	(	float *DSPARK_RESTRICT	dst,
		const float *DSPARK_RESTRICT	src,
		int	count
	)

inlinenoexcept

Adds source samples into a destination buffer (no scaling).

Definition at line 608 of file SimdOps.h.

◆ addT()

template<typename T >

void dspark::simd::addT	(	T *DSPARK_RESTRICT	dst,
		const T *DSPARK_RESTRICT	src,
		int	count
	)

noexcept

Definition at line 1189 of file SimdOps.h.

◆ addWithGain() [1/2]

void dspark::simd::addWithGain	(	double *DSPARK_RESTRICT	dst,
		const double *DSPARK_RESTRICT	src,
		double	gain,
		int	count
	)

inlinenoexcept

Double overload.

Definition at line 130 of file SimdOps.h.

◆ addWithGain() [2/2]

void dspark::simd::addWithGain	(	float *DSPARK_RESTRICT	dst,
		const float *DSPARK_RESTRICT	src,
		float	gain,
		int	count
	)

inlinenoexcept

Adds source samples scaled by a gain factor into a destination buffer.

Definition at line 77 of file SimdOps.h.

◆ addWithGainRamp() [1/2]

void dspark::simd::addWithGainRamp	(	double *DSPARK_RESTRICT	dst,
		const double *DSPARK_RESTRICT	src,
		double	gainStart,
		double	gainEnd,
		int	count
	)

inlinenoexcept

Double overload.

Definition at line 956 of file SimdOps.h.

◆ addWithGainRamp() [2/2]

void dspark::simd::addWithGainRamp	(	float *DSPARK_RESTRICT	dst,
		const float *DSPARK_RESTRICT	src,
		float	gainStart,
		float	gainEnd,
		int	count
	)

inlinenoexcept

Adds source samples scaled by a linear gain ramp into a destination.

Same ramp convention as applyGainRamp: sample i uses gainStart + i * (gainEnd - gainStart) / count, spanning [gainStart, gainEnd) across the block. count <= 0 is a no-op.

Definition at line 896 of file SimdOps.h.

◆ addWithGainRampT()

template<typename T >

void dspark::simd::addWithGainRampT	(	T *DSPARK_RESTRICT	dst,
		const T *DSPARK_RESTRICT	src,
		T	gainStart,
		T	gainEnd,
		int	count
	)

noexcept

Definition at line 1224 of file SimdOps.h.

◆ addWithGainT()

template<typename T >

void dspark::simd::addWithGainT	(	T *DSPARK_RESTRICT	dst,
		const T *DSPARK_RESTRICT	src,
		T	gain,
		int	count
	)

noexcept

Definition at line 1161 of file SimdOps.h.

◆ applyGain() [1/2]

void dspark::simd::applyGain	(	double *DSPARK_RESTRICT	data,
		double	gain,
		int	count
	)

inlinenoexcept

Double overload.

Definition at line 224 of file SimdOps.h.

◆ applyGain() [2/2]

void dspark::simd::applyGain	(	float *DSPARK_RESTRICT	data,
		float	gain,
		int	count
	)

inlinenoexcept

Multiplies all samples in a buffer by a gain factor.

Definition at line 186 of file SimdOps.h.

◆ applyGainRamp() [1/2]

void dspark::simd::applyGainRamp	(	double *DSPARK_RESTRICT	data,
		double	gainStart,
		double	gainEnd,
		int	count
	)

inlinenoexcept

Double overload.

Definition at line 841 of file SimdOps.h.

◆ applyGainRamp() [2/2]

void dspark::simd::applyGainRamp	(	float *DSPARK_RESTRICT	data,
		float	gainStart,
		float	gainEnd,
		int	count
	)

inlinenoexcept

In-place linear gain ramp (the canonical click-free fade primitive).

Sample i is scaled by gainStart + i * (gainEnd - gainStart) / count, so the ramp covers [gainStart, gainEnd) across the block: the last sample sits one step below gainEnd. For a continuous fade across consecutive blocks, start the next block at gainEnd. count <= 0 is a no-op.

Definition at line 794 of file SimdOps.h.

◆ applyGainRampT()

template<typename T >

void dspark::simd::applyGainRampT	(	T *DSPARK_RESTRICT	data,
		T	gainStart,
		T	gainEnd,
		int	count
	)

noexcept

Definition at line 1217 of file SimdOps.h.

◆ applyGainT()

template<typename T >

void dspark::simd::applyGainT	(	T *DSPARK_RESTRICT	data,
		T	gain,
		int	count
	)

noexcept

Definition at line 1168 of file SimdOps.h.

◆ complexMulAccum() [1/2]

void dspark::simd::complexMulAccum	(	double *DSPARK_RESTRICT	accum,
		const double *DSPARK_RESTRICT	a,
		const double *DSPARK_RESTRICT	b,
		int	bins
	)

inlinenoexcept

Double overload (scalar on purpose: double spectra are an offline path).

Definition at line 1144 of file SimdOps.h.

◆ complexMulAccum() [2/2]

void dspark::simd::complexMulAccum	(	float *DSPARK_RESTRICT	accum,
		const float *DSPARK_RESTRICT	a,
		const float *DSPARK_RESTRICT	b,
		int	bins
	)

inlinenoexcept

Complex multiply-accumulate over interleaved [re, im, ...] spectra.

The workhorse of frequency-domain (partitioned) convolution: accum += a * b evaluated as complex numbers, for bins complex bins.

Definition at line 1039 of file SimdOps.h.

◆ copyWithGain() [1/2]

void dspark::simd::copyWithGain	(	double *DSPARK_RESTRICT	dst,
		const double *DSPARK_RESTRICT	src,
		double	gain,
		int	count
	)

inlinenoexcept

Double overload.

Definition at line 756 of file SimdOps.h.

◆ copyWithGain() [2/2]

void dspark::simd::copyWithGain	(	float *DSPARK_RESTRICT	dst,
		const float *DSPARK_RESTRICT	src,
		float	gain,
		int	count
	)

inlinenoexcept

Copies a buffer applying a gain factor (out-of-place).

Definition at line 730 of file SimdOps.h.

◆ copyWithGainT()

template<typename T >

void dspark::simd::copyWithGainT	(	T *DSPARK_RESTRICT	dst,
		const T *DSPARK_RESTRICT	src,
		T	gain,
		int	count
	)

noexcept

Definition at line 1203 of file SimdOps.h.

◆ dotProduct() [1/2]

double dspark::simd::dotProduct	(	const double *DSPARK_RESTRICT	a,
		const double *DSPARK_RESTRICT	b,
		int	count
	)

inlinenoexcept

Double overload.

Definition at line 517 of file SimdOps.h.

◆ dotProduct() [2/2]

float dspark::simd::dotProduct	(	const float *DSPARK_RESTRICT	a,
		const float *DSPARK_RESTRICT	b,
		int	count
	)

inlinenoexcept

Computes the dot product of two arrays.

Definition at line 419 of file SimdOps.h.

◆ dotProductT()

template<typename T >

T dspark::simd::dotProductT	(	const T *DSPARK_RESTRICT	a,
		const T *DSPARK_RESTRICT	b,
		int	count
	)

noexcept

Definition at line 1182 of file SimdOps.h.

◆ firCorrelate()

template<typename T >

void dspark::simd::firCorrelate	(	const T *	x,
		const T *	h,
		int	taps,
		T *DSPARK_RESTRICT	y,
		int	n,
		T	gain
	)

noexcept

Block FIR as a valid correlation: y[i] = gain * sum_j h[j] * x[i + j] for i in [0, n), reading x[0 .. n + taps - 1).

Register-blocked over outputs (four vectors at a time, the taps in the inner loop), so no output pays a horizontal sum: for the 16..256-tap kernels of oversamplers and resamplers it runs several times faster than one dotProduct() per output. y must not overlap x or h.

Parameters

x	Input, n + taps - 1 samples.
h	Kernel, taps coefficients (h[0] meets x[i]).
taps	Kernel length.
y	Output, n samples.
n	Number of outputs.
gain	Scale applied to every output.

Definition at line 1549 of file SimdOps.h.

◆ multiply() [1/2]

void dspark::simd::multiply	(	double *DSPARK_RESTRICT	dst,
		const double *DSPARK_RESTRICT	a,
		const double *DSPARK_RESTRICT	b,
		int	count
	)

inlinenoexcept

Double overload.

Definition at line 702 of file SimdOps.h.

◆ multiply() [2/2]

void dspark::simd::multiply	(	float *DSPARK_RESTRICT	dst,
		const float *DSPARK_RESTRICT	a,
		const float *DSPARK_RESTRICT	b,
		int	count
	)

inlinenoexcept

Element-wise product of two buffers into a destination.

Definition at line 679 of file SimdOps.h.

◆ multiplyT()

template<typename T >

void dspark::simd::multiplyT	(	T *DSPARK_RESTRICT	dst,
		const T *DSPARK_RESTRICT	a,
		const T *DSPARK_RESTRICT	b,
		int	count
	)

noexcept

Definition at line 1196 of file SimdOps.h.

◆ peakLevel() [1/2]

double dspark::simd::peakLevel	(	const double *DSPARK_RESTRICT	data,
		int	count
	)

inlinenoexcept

Double overload. NaN samples are ignored, as in the float version.

Definition at line 345 of file SimdOps.h.

◆ peakLevel() [2/2]

float dspark::simd::peakLevel	(	const float *DSPARK_RESTRICT	data,
		int	count
	)

inlinenoexcept

Returns the peak absolute sample value in a buffer.

NaN samples are ignored on every code path (SIMD and scalar): the result is the peak of the finite samples, 0 if there are none.

Definition at line 264 of file SimdOps.h.

◆ peakLevelT()

template<typename T >

T dspark::simd::peakLevelT	(	const T *DSPARK_RESTRICT	data,
		int	count
	)

noexcept

Definition at line 1175 of file SimdOps.h.

◆ sumOfSquares() [1/2]

double dspark::simd::sumOfSquares	(	const double *DSPARK_RESTRICT	data,
		int	count
	)

inlinenoexcept

Double overload.

Definition at line 1024 of file SimdOps.h.

◆ sumOfSquares() [2/2]

float dspark::simd::sumOfSquares	(	const float *DSPARK_RESTRICT	data,
		int	count
	)

inlinenoexcept

Returns the sum of squared samples (energy).

Definition at line 1018 of file SimdOps.h.

◆ sumOfSquaresT()

template<typename T >

T dspark::simd::sumOfSquaresT	(	const T *DSPARK_RESTRICT	data,
		int	count
	)

noexcept

Definition at line 1210 of file SimdOps.h.

Variable Documentation

◆ kVecDoubleNarrow

constexpr int dspark::simd::kVecDoubleNarrow = 1

inlineconstexpr

Definition at line 1412 of file SimdOps.h.

◆ kVecDoubleWide

constexpr int dspark::simd::kVecDoubleWide = kVecDoubleNarrow

inlineconstexpr

Definition at line 1524 of file SimdOps.h.

◆ kVecFloatNarrow

constexpr int dspark::simd::kVecFloatNarrow = 1

inlineconstexpr

Definition at line 1411 of file SimdOps.h.

◆ kVecFloatWide

constexpr int dspark::simd::kVecFloatWide = kVecFloatNarrow

inlineconstexpr

Definition at line 1523 of file SimdOps.h.

◆ kVecNarrowWidth

template<typename T >

constexpr int dspark::simd::kVecNarrowWidth = std::is_same_v<T, float> ? kVecFloatNarrow : kVecDoubleNarrow

inlineconstexpr

The next width down (the SSE2/NEON width in AVX builds).

Definition at line 1530 of file SimdOps.h.

◆ kVecWidth

template<typename T >

constexpr int dspark::simd::kVecWidth = std::is_same_v<T, float> ? kVecFloatWide : kVecDoubleWide

inlineconstexpr

Widest vector width for T on this target (1 = scalar).

Definition at line 1528 of file SimdOps.h.

Classes

Functions

Variables

Function Documentation

◆ add() [1/2]

◆ add() [2/2]

◆ addT()

◆ addWithGain() [1/2]

◆ addWithGain() [2/2]

◆ addWithGainRamp() [1/2]

◆ addWithGainRamp() [2/2]

◆ addWithGainRampT()

◆ addWithGainT()

◆ applyGain() [1/2]

◆ applyGain() [2/2]

◆ applyGainRamp() [1/2]

◆ applyGainRamp() [2/2]

◆ applyGainRampT()

◆ applyGainT()

◆ complexMulAccum() [1/2]

◆ complexMulAccum() [2/2]

◆ copyWithGain() [1/2]

◆ copyWithGain() [2/2]

◆ copyWithGainT()

◆ dotProduct() [1/2]

◆ dotProduct() [2/2]

◆ dotProductT()

◆ firCorrelate()

◆ multiply() [1/2]

◆ multiply() [2/2]

◆ multiplyT()

◆ peakLevel() [1/2]

◆ peakLevel() [2/2]

◆ peakLevelT()

◆ sumOfSquares() [1/2]

◆ sumOfSquares() [2/2]

◆ sumOfSquaresT()

Variable Documentation

◆ kVecDoubleNarrow

◆ kVecDoubleWide

◆ kVecFloatNarrow

◆ kVecFloatWide

◆ kVecNarrowWidth

◆ kVecWidth