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finalized bw_osc_saw + updated synth(pp)_mono + better doc/debug

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This commit is contained in:
Stefano D'Angelo 2023-09-20 14:58:33 +02:00
parent f1d4de6457
commit b4898a60b3
5 changed files with 331 additions and 49 deletions
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3
examples/synth_mono/src/bw_example_synth_mono.c
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@ -59,6 +59,7 @@ void bw_example_synth_mono_init(bw_example_synth_mono *instance) {
}
void bw_example_synth_mono_set_sample_rate(bw_example_synth_mono *instance, float sample_rate) {
bw_osc_saw_set_sample_rate(&instance->vco_saw_coeffs, sample_rate);
bw_phase_gen_set_sample_rate(&instance->vco1_phase_gen_coeffs, sample_rate);
bw_osc_pulse_set_sample_rate(&instance->vco1_pulse_coeffs, sample_rate);
bw_osc_tri_set_sample_rate(&instance->vco1_tri_coeffs, sample_rate);
@ -80,6 +81,8 @@ void bw_example_synth_mono_set_sample_rate(bw_example_synth_mono *instance, floa
bw_phase_gen_set_sample_rate(&instance->a440_phase_gen_coeffs, sample_rate);
bw_gain_set_sample_rate(&instance->gain_coeffs, sample_rate);
bw_ppm_set_sample_rate(&instance->ppm_coeffs, sample_rate);
bw_osc_saw_reset_coeffs(&instance->vco_saw_coeffs);
}
void bw_example_synth_mono_reset(bw_example_synth_mono *instance) {

6
examples/synthpp_mono/src/bw_example_synthpp_mono.cpp
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@ -40,14 +40,17 @@ void bw_example_synthpp_mono_init(bw_example_synthpp_mono *instance) {
void bw_example_synthpp_mono_set_sample_rate(bw_example_synthpp_mono *instance, float sample_rate) {
instance->vco1PhaseGen.setSampleRate(sample_rate);
instance->vco1OscSaw.setSampleRate(sample_rate);
instance->vco1OscPulse.setSampleRate(sample_rate);
instance->vco1OscTri.setSampleRate(sample_rate);
instance->vco1Gain.setSampleRate(sample_rate);
instance->vco2PhaseGen.setSampleRate(sample_rate);
instance->vco2OscSaw.setSampleRate(sample_rate);
instance->vco2OscPulse.setSampleRate(sample_rate);
instance->vco2OscTri.setSampleRate(sample_rate);
instance->vco2Gain.setSampleRate(sample_rate);
instance->vco3PhaseGen.setSampleRate(sample_rate);
instance->vco3OscSaw.setSampleRate(sample_rate);
instance->vco3OscPulse.setSampleRate(sample_rate);
instance->vco3OscTri.setSampleRate(sample_rate);
instance->vco3Gain.setSampleRate(sample_rate);
@ -68,14 +71,17 @@ void bw_example_synthpp_mono_reset(bw_example_synthpp_mono *instance) {
instance->vcf.setCutoff(bw_clipf(cutoff, 20.f, 20e3f));
instance->vco1PhaseGen.reset();
instance->vco1OscSaw.reset();
instance->vco1OscPulse.reset();
instance->vco1OscTri.reset();
instance->vco1Gain.reset();
instance->vco2PhaseGen.reset();
instance->vco2OscSaw.reset();
instance->vco2OscPulse.reset();
instance->vco2OscTri.reset();
instance->vco2Gain.reset();
instance->vco3PhaseGen.reset();
instance->vco3OscSaw.reset();
instance->vco3OscPulse.reset();
instance->vco3OscTri.reset();
instance->vco3Gain.reset();

336
include/bw_osc_saw.h
View File

@ -38,6 +38,10 @@
* <ul>
* <li>Version <strong>1.0.0</strong>:
* <ul>
* <li>Added <code>bw_osc_saw_set_sample_rate()</code>,
* <code>bw_osc_saw_reset_coeffs()</code>,
* <code>bw_osc_saw_update_coeffs_ctrl()</code>,
* and <code>bw_osc_saw_update_coeffs_audio()</code>.</li>
* <li><code>bw_osc_saw_process()</code> and
* <code>bw_osc_saw_process_multi()</code> now use
* <code>size_t</code> to count samples and channels.</li>
@ -47,6 +51,7 @@
* <li>Added overloaded C++ <code>process()</code> function taking
* C-style arrays as arguments.</li>
* <li>Removed usage of reserved identifiers.</li>
* <li>Added debugging code.</li>
* </ul>
* </li>
* <li>Version <strong>0.6.0</strong>:
@ -97,14 +102,50 @@ typedef struct bw_osc_saw_coeffs bw_osc_saw_coeffs;
*
* #### bw_osc_saw_init()
* ```>>> */
static inline void bw_osc_saw_init(bw_osc_saw_coeffs *BW_RESTRICT coeffs);
static inline void bw_osc_saw_init(
bw_osc_saw_coeffs * BW_RESTRICT coeffs);
/*! <<<```
* Initializes input parameter values in `coeffs`.
*
* #### bw_osc_saw_set_sample_rate()
* ```>>> */
static inline void bw_osc_saw_set_sample_rate(
bw_osc_saw_coeffs * BW_RESTRICT coeffs,
float sample_rate);
/*! <<<```
* Sets the `sample_rate` (Hz) value in `coeffs`.
*
* #### bw_osc_saw_reset_coeffs()
* ```>>> */
static inline void bw_osc_saw_reset_coeffs(
bw_osc_saw_coeffs * BW_RESTRICT coeffs);
/*! <<<```
* Resets coefficients in `coeffs` to assume their target values.
*
* #### bw_osc_saw_update_coeffs_ctrl()
* ```>>> */
static inline void bw_osc_saw_update_coeffs_ctrl(
bw_osc_saw_coeffs * BW_RESTRICT coeffs);
/*! <<<```
* Triggers control-rate update of coefficients in `coeffs`.
*
* #### bw_osc_saw_update_coeffs_audio()
* ```>>> */
static inline void bw_osc_saw_update_coeffs_audio(
bw_osc_saw_coeffs * BW_RESTRICT coeffs);
/*! <<<```
* Triggers audio-rate update of coefficients in `coeffs`.
*
* #### bw_osc_saw_process1\*()
* ```>>> */
static inline float bw_osc_saw_process1(const bw_osc_saw_coeffs *BW_RESTRICT coeffs, float x);
static inline float bw_osc_saw_process1_antialias(const bw_osc_saw_coeffs *BW_RESTRICT coeffs, float x, float x_phase_inc);
static inline float bw_osc_saw_process1(
const bw_osc_saw_coeffs * BW_RESTRICT coeffs,
float x);
static inline float bw_osc_saw_process1_antialias(
const bw_osc_saw_coeffs * BW_RESTRICT coeffs,
float x,
float x_inc);
/*! <<<```
* These function process one input sample `x`, representing the normalized
* phase, using `coeffs`. They return the corresponding output sample.
@ -113,39 +154,79 @@ static inline float bw_osc_saw_process1_antialias(const bw_osc_saw_coeffs *BW_RE
* * `bw_osc_saw_process1()` assumes that antialiasing is disabled;
* * `bw_osc_saw_process1_antialias()` assumes that antialiasing is enabled
* and requires the corresponding phase increment value to be passed via
* `x_phase_inc`.
* `x_inc`.
*
* Whether antialiasing is enabled or not is unchecked even for debugging
* purposes.
*
* `x` must be in [`0.f`, `1.f`).
*
* `x_inc` must be in [`-0.5f`, `0.5f`].
*
* #### bw_osc_saw_process()
* ```>>> */
static inline void bw_osc_saw_process(bw_osc_saw_coeffs *BW_RESTRICT coeffs, const float *x, const float *x_phase_inc, float *y, size_t n_samples);
static inline void bw_osc_saw_process(
bw_osc_saw_coeffs * BW_RESTRICT coeffs,
const float * x,
const float * x_inc,
float * y,
size_t n_samples);
/*! <<<```
* Processes the first `n_samples` of the input buffer `x`, containing the
* normalized phase signal, and fills the first `n_samples` of the output
* buffer `y`, while using `coeffs`.
*
* If antialiasing is enabled, `x_phase_inc` must contain phase increment
* values, otherwise it is ignored and can be `NULL`.
* If antialiasing is enabled, `x_inc` must contain phase increment values,
* otherwise it is ignored and can be `NULL`.
*
* All samples in `x` must be in [`0.f`, `1.f`).
*
* All samples is `x_inc`, if not ignored, must be in [`-0.5f`, `0.5f`].
*
* #### bw_osc_saw_process_multi()
* ```>>> */
static inline void bw_osc_saw_process_multi(bw_osc_saw_coeffs *BW_RESTRICT coeffs, const float * const *x, const float * const *x_phase_inc, float * const *y, size_t n_channels, size_t n_samples);
static inline void bw_osc_saw_process_multi(
bw_osc_saw_coeffs * BW_RESTRICT coeffs,
const float * const * x,
const float * const * x_inc,
float * const * y,
size_t n_channels,
size_t n_samples);
/*! <<<```
* Processes the first `n_samples` of the `n_channels` input buffers `x`,
* containing the normalized phase signals, and fills the first `n_samples`
* of the `n_samples` output buffers `y`, while using `coeffs`.
*
* If antialiasing is enabled, each of the `n_channels` buffers pointed by
* `x_phase_inc` must contain phase increment values, otherwise `x_phase_inc`
* is ignored and can be `NULL`.
* `x_inc` must contain phase increment values, otherwise `x_inc` is ignored
* and can be `NULL`.
*
* All samples in `x` must be in [`0.f`, `1.f`).
*
* All samples is `x_inc`, if not ignored, must be in [`-0.5f`, `0.5f`].
*
* #### bw_osc_saw_set_antialiasing()
* ```>>> */
static inline void bw_osc_saw_set_antialiasing(bw_osc_saw_coeffs *BW_RESTRICT coeffs, char value);
static inline void bw_osc_saw_set_antialiasing(
bw_osc_saw_coeffs * BW_RESTRICT coeffs,
char value);
/*! <<<```
* Sets whether the antialiasing is on (`value` non-`0`) or off (`0`) in
* `coeffs`.
*
* Default value: `0` (off).
*
* #### bw_osc_saw_coeffs_is_valid()
* ```>>> */
static inline char bw_osc_saw_coeffs_is_valid(
const bw_osc_saw_coeffs * BW_RESTRICT coeffs);
/*! <<<```
* Tries to determine whether `coeffs` is valid and returns non-`0` if it
* seems to be the case and `0` if it is certainly not. False positives are
* possible, false negatives are not.
*
* `coeffs` must at least point to a readable memory block of size greater
* than or equal to that of `bw_osc_saw_coeffs`.
* }}} */
#ifdef __cplusplus
@ -163,62 +244,227 @@ static inline void bw_osc_saw_set_antialiasing(bw_osc_saw_coeffs *BW_RESTRICT co
extern "C" {
#endif
#ifdef BW_DEBUG_DEEP
enum bw_osc_saw_coeffs_state {
bw_osc_saw_coeffs_state_invalid,
bw_osc_saw_coeffs_state_init,
bw_osc_saw_coeffs_state_set_sample_rate,
bw_osc_saw_coeffs_state_reset_coeffs
};
#endif
struct bw_osc_saw_coeffs {
#ifdef BW_DEBUG_DEEP
uint32_t hash;
enum bw_osc_saw_coeffs_state state;
#endif
// Parameters
char antialiasing;
};
static inline void bw_osc_saw_init(bw_osc_saw_coeffs *BW_RESTRICT coeffs) {
static inline void bw_osc_saw_init(
bw_osc_saw_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
coeffs->antialiasing = 0;
#ifdef BW_DEBUG_DEEP
coeffs->hash = bw_hash_sdbm("bw_osc_saw_coeffs");
coeffs->state = bw_osc_saw_coeffs_state_init;
#endif
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_osc_saw_coeffs_state_init);
}
static inline float bw_osc_saw_process1(const bw_osc_saw_coeffs *BW_RESTRICT coeffs, float x) {
static inline void bw_osc_saw_set_sample_rate(
bw_osc_saw_coeffs * BW_RESTRICT coeffs,
float sample_rate) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_init);
BW_ASSERT(bw_is_finite(sample_rate) && sample_rate > 0.f);
(void)coeffs;
return x + x - 1.f;
(void)sample_rate;
#ifdef BW_DEBUG_DEEP
coeffs->state = bw_osc_saw_coeffs_state_set_sample_rate;
#endif
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_osc_saw_coeffs_state_set_sample_rate);
}
static inline void bw_osc_saw_reset_coeffs(
bw_osc_saw_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_set_sample_rate);
(void)coeffs;
#ifdef BW_DEBUG_DEEP
coeffs->state = bw_osc_saw_coeffs_state_reset_coeffs;
#endif
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_osc_saw_coeffs_state_reset_coeffs);
}
static inline void bw_osc_saw_update_coeffs_ctrl(
bw_osc_saw_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_reset_coeffs);
(void)coeffs;
}
static inline void bw_osc_saw_update_coeffs_audio(
bw_osc_saw_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_reset_coeffs);
(void)coeffs;
}
static inline float bw_osc_saw_process1(
const bw_osc_saw_coeffs * BW_RESTRICT coeffs,
float x) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_reset_coeffs);
BW_ASSERT(bw_is_finite(x));
BW_ASSERT(x >= 0.f && x < 1.f);
(void)coeffs;
const float y = x + x - 1.f;
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_reset_coeffs);
BW_ASSERT(bw_is_finite(y));
return y;
}
// PolyBLEP residual based on Parzen window (4th-order B-spline), one-sided (x in [0, 2])
static inline float bw_osc_saw_blep_diff(float x) {
static inline float bw_osc_saw_blep_diff(
float x) {
return x < 1.f
? x * ((0.25f * x - 0.6666666666666666f) * x * x + 1.333333333333333f) - 1.f
: x * (x * ((0.6666666666666666f - 0.08333333333333333f * x) * x - 2.f) + 2.666666666666667f) - 1.333333333333333f;
}
static inline float bw_osc_saw_process1_antialias(const bw_osc_saw_coeffs *BW_RESTRICT coeffs, float x, float x_phase_inc) {
static inline float bw_osc_saw_process1_antialias(
const bw_osc_saw_coeffs * BW_RESTRICT coeffs,
float x,
float x_inc) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_reset_coeffs);
BW_ASSERT(bw_is_finite(x));
BW_ASSERT(x >= 0.f && x < 1.f);
BW_ASSERT(bw_is_finite(x_inc));
BW_ASSERT(x_inc >= -0.5f && x_inc <= 0.5f);
(void)coeffs;
const float s_1_m_phase = 1.f - x;
float v = x - s_1_m_phase;
if (x_phase_inc != 0.f) {
const float phase_inc_2 = x_phase_inc + x_phase_inc;
const float phase_inc_rcp = bw_rcpf(x_phase_inc);
if (s_1_m_phase < phase_inc_2)
v += bw_osc_saw_blep_diff(s_1_m_phase * phase_inc_rcp);
if (x < phase_inc_2)
v -= bw_osc_saw_blep_diff(x * phase_inc_rcp);
const float a_inc = bw_absf(x_inc);
if (a_inc > 1e-6f) {
const float a_inc_2 = a_inc + a_inc;
const float a_inc_rcp = bw_rcpf(a_inc);
if (s_1_m_phase < a_inc_2)
v += bw_osc_saw_blep_diff(s_1_m_phase * a_inc_rcp);
if (x < a_inc_2)
v -= bw_osc_saw_blep_diff(x * a_inc_rcp);
}
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_reset_coeffs);
BW_ASSERT(bw_is_finite(v));
return v;
}
static inline void bw_osc_saw_process(bw_osc_saw_coeffs *BW_RESTRICT coeffs, const float *x, const float *x_phase_inc, float *y, size_t n_samples) {
static inline void bw_osc_saw_process(
bw_osc_saw_coeffs * BW_RESTRICT coeffs,
const float * x,
const float * x_inc,
float * y,
size_t n_samples) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_reset_coeffs);
BW_ASSERT(x != NULL);
BW_ASSERT_DEEP(bw_has_only_finite(x, n_samples));
BW_ASSERT(coeffs->antialiasing ? x_inc != NULL : 1);
BW_ASSERT_DEEP(coeffs->antialiasing ? bw_has_only_finite(x_inc, n_samples) : 1);
BW_ASSERT(y != NULL);
if (coeffs->antialiasing)
for (size_t i = 0; i < n_samples; i++)
y[i] = bw_osc_saw_process1_antialias(coeffs, x[i], x_phase_inc[i]);
y[i] = bw_osc_saw_process1_antialias(coeffs, x[i], x_inc[i]);
else
for (size_t i = 0; i < n_samples; i++)
y[i] = bw_osc_saw_process1(coeffs, x[i]);
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(bw_has_only_finite(y, n_samples));
}
static inline void bw_osc_saw_process_multi(bw_osc_saw_coeffs *BW_RESTRICT coeffs, const float * const *x, const float * const *x_phase_inc, float * const *y, size_t n_channels, size_t n_samples) {
if (x_phase_inc != NULL)
static inline void bw_osc_saw_process_multi(
bw_osc_saw_coeffs * BW_RESTRICT coeffs,
const float * const * x,
const float * const * x_inc,
float * const * y,
size_t n_channels,
size_t n_samples) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_reset_coeffs);
BW_ASSERT(x != NULL);
BW_ASSERT(y != NULL);
if (x_inc != NULL)
for (size_t i = 0; i < n_channels; i++)
bw_osc_saw_process(coeffs, x[i], x_phase_inc[i], y[i], n_samples);
bw_osc_saw_process(coeffs, x[i], x_inc[i], y[i], n_samples);
else
for (size_t i = 0; i < n_channels; i++)
bw_osc_saw_process(coeffs, x[i], NULL, y[i], n_samples);
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_reset_coeffs);
}
static inline void bw_osc_saw_set_antialiasing(bw_osc_saw_coeffs *BW_RESTRICT coeffs, char value) {
static inline void bw_osc_saw_set_antialiasing(
bw_osc_saw_coeffs * BW_RESTRICT coeffs,
char value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_init);
coeffs->antialiasing = value;
BW_ASSERT_DEEP(bw_osc_saw_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_osc_saw_coeffs_state_init);
}
static inline char bw_osc_saw_coeffs_is_valid(
const bw_osc_saw_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
#ifdef BW_DEBUG_DEEP
if (coeffs->hash != bw_hash_sdbm("bw_osc_saw_coeffs"))
return 0;
if (coeffs->state < bw_osc_saw_coeffs_state_init || coeffs->state > bw_osc_saw_coeffs_state_reset_coeffs)
return 0;
#endif
(void)coeffs;
return 1;
}
#ifdef __cplusplus
@ -238,14 +484,20 @@ class OscSaw {
public:
OscSaw();
void setSampleRate(
float sampleRate);
void reset();
void process(
const float * const * x,
const float * const *x_phase_inc,
const float * const * x_inc,
float * const * y,
size_t nSamples);
void process(
std::array<const float *, N_CHANNELS> x,
std::array<const float *, N_CHANNELS> x_phase_inc,
std::array<const float *, N_CHANNELS> x_inc,
std::array<float *, N_CHANNELS> y,
size_t nSamples);
@ -269,26 +521,38 @@ inline OscSaw<N_CHANNELS>::OscSaw() {
bw_osc_saw_init(&coeffs);
}
template<size_t N_CHANNELS>
inline void OscSaw<N_CHANNELS>::setSampleRate(
float sampleRate) {
bw_osc_saw_set_sample_rate(&coeffs, sampleRate);
}
template<size_t N_CHANNELS>
inline void OscSaw<N_CHANNELS>::reset() {
bw_osc_saw_reset_coeffs(&coeffs);
}
template<size_t N_CHANNELS>
inline void OscSaw<N_CHANNELS>::process(
const float * const * x,
const float * const *x_phase_inc,
const float * const * x_inc,
float * const * y,
size_t nSamples) {
bw_osc_saw_process_multi(&coeffs, x, x_phase_inc, y, N_CHANNELS, nSamples);
bw_osc_saw_process_multi(&coeffs, x, x_inc, y, N_CHANNELS, nSamples);
}
template<size_t N_CHANNELS>
inline void OscSaw<N_CHANNELS>::process(
std::array<const float *, N_CHANNELS> x,
std::array<const float *, N_CHANNELS> x_phase_inc,
std::array<const float *, N_CHANNELS> x_inc,
std::array<float *, N_CHANNELS> y,
size_t nSamples) {
process(x.data(), x_phase_inc.data(), y.data(), nSamples);
process(x.data(), x_inc.data(), y.data(), nSamples);
}
template<size_t N_CHANNELS>
inline void OscSaw<N_CHANNELS>::setAntialiasing(bool value) {
inline void OscSaw<N_CHANNELS>::setAntialiasing(
bool value) {
bw_osc_saw_set_antialiasing(&coeffs, value);
}

7
include/bw_osc_sin.h
View File

@ -87,6 +87,8 @@ static inline float bw_osc_sin_process1(
* Processes one input sample `x`, representing the normalized phase, and
* returns the corresponding output sample.
*
* `x` must be in [`0.f`, `1.f`).
*
* #### bw_osc_sin_process()
* ```>>> */
static inline void bw_osc_sin_process(
@ -98,6 +100,8 @@ static inline void bw_osc_sin_process(
* normalized phase signal, and fills the first `n_samples` of the output
* buffer `y`.
*
* All samples in `x` must be in [`0.f`, `1.f`).
*
* #### bw_osc_sin_process_multi()
* ```>>> */
static inline void bw_osc_sin_process_multi(
@ -109,6 +113,8 @@ static inline void bw_osc_sin_process_multi(
* Processes the first `n_samples` of the `n_channels` input buffers `x`,
* containing the normalized phase signals, and fills the first `n_samples`
* of the `n_channels` output buffers `y`.
*
* All samples in `x` must be in [`0.f`, `1.f`).
* }}} */
#ifdef __cplusplus
@ -129,6 +135,7 @@ extern "C" {
static inline float bw_osc_sin_process1(
float x) {
BW_ASSERT(bw_is_finite(x));
BW_ASSERT(x >= 0.f && x < 1.f);
const float y = bw_sin2pif(x);

2
include/bw_phase_gen.h
View File

@ -538,6 +538,7 @@ static inline void bw_phase_gen_process1(
BW_ASSERT_DEEP(coeffs->state >= bw_phase_gen_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(bw_phase_gen_state_is_valid(coeffs, state));
BW_ASSERT(bw_is_finite(*y));
BW_ASSERT(*y >= 0.f && *y < 1.f);
BW_ASSERT(bw_is_finite(*y_inc));
}
@ -563,6 +564,7 @@ static inline void bw_phase_gen_process1_mod(
BW_ASSERT_DEEP(coeffs->state >= bw_phase_gen_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(bw_phase_gen_state_is_valid(coeffs, state));
BW_ASSERT(bw_is_finite(*y));
BW_ASSERT(*y >= 0.f && *y < 1.f);
BW_ASSERT(bw_is_finite(*y_inc));
}