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finalized bw_trem + examples

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This commit is contained in:
Stefano D'Angelo 2023-09-19 08:49:56 +02:00
parent dc93bd675b
commit 3e1400922f
5 changed files with 422 additions and 51 deletions
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1
TODO
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@ -77,6 +77,7 @@ code:
* src inside distortions? w/ control from outside?
* make all outs nullable?
* make all reset state outs nullable (svf, phase_gen, ...)?
* ring mod fx module?
build system:
* make makefiles handle paths with spaces etc

2
examples/fx_trem/src/bw_example_fx_trem.c
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@ -30,7 +30,7 @@ void bw_example_fx_trem_set_sample_rate(bw_example_fx_trem *instance, float samp
void bw_example_fx_trem_reset(bw_example_fx_trem *instance) {
bw_trem_reset_coeffs(&instance->trem_coeffs);
bw_trem_reset_state(&instance->trem_coeffs, &instance->trem_state);
bw_trem_reset_state(&instance->trem_coeffs, &instance->trem_state, 0.f);
}
void bw_example_fx_trem_process(bw_example_fx_trem *instance, const float** x, float** y, int n_samples) {

3
examples/fx_trem/vst3/Makefile
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@ -4,3 +4,6 @@ NAME := bw_example_fx_trem
SOURCES = ${SOURCES_COMMON} ${ROOT_DIR}/../src/bw_example_fx_trem.c
include ${ROOT_DIR}/../../common/vst3/vst3.mk
CXXFLAGS += -DRELEASE=1 -DNDEBUG -DBW_NO_DEBUG
#CXXFLAGS += -DDEVELOPMENT=1 -DBW_DEBUG_DEEP

3
examples/fxpp_trem/vst3/Makefile
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@ -4,3 +4,6 @@ NAME := bw_example_fxpp_trem
SOURCES = ${SOURCES_COMMON} ${ROOT_DIR}/../src/bw_example_fxpp_trem.cpp
include ${ROOT_DIR}/../../common/vst3/vst3.mk
CXXFLAGS += -DRELEASE=1 -DNDEBUG -DBW_NO_DEBUG
#CXXFLAGS += -DDEVELOPMENT=1 -DBW_DEBUG_DEEP

432
include/bw_trem.h
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@ -31,6 +31,14 @@
* <ul>
* <li>Version <strong>1.0.0</strong>:
* <ul>
* <li>Added initial input value to
* <code>bw_trem_reset_state()</code>.</li>
* <li>Added <code>bw_trem_reset_state_multi()</code> and updated C++
* API in this regard.</li>
* <li>Now <code>bw_trem_reset_state()</code> returns the initial
* output value.</li>
* <li>Added overloaded C++ <code>reset()</code> functions taking
* arrays as arguments.</li>
* <li><code>bw_trem_process()</code> and
* <code>bw_trem_process_multi()</code> now use <code>size_t</code>
* to count samples and channels.</li>
@ -40,6 +48,8 @@
* <li>Added overloaded C++ <code>process()</code> function taking
* C-style arrays as arguments.</li>
* <li>Removed usage of reserved identifiers.</li>
* <li>Clearly specified parameter validity ranges.</li>
* <li>Added debugging code.</li>
* </ul>
* </li>
* <li>Version <strong>0.6.0</strong>:
@ -86,50 +96,86 @@ typedef struct bw_trem_state bw_trem_state;
*
* #### bw_trem_init()
* ```>>> */
static inline void bw_trem_init(bw_trem_coeffs *BW_RESTRICT coeffs);
static inline void bw_trem_init(
bw_trem_coeffs * BW_RESTRICT coeffs);
/*! <<<```
* Initializes input parameter values in `coeffs`.
*
* #### bw_trem_set_sample_rate()
* ```>>> */
static inline void bw_trem_set_sample_rate(bw_trem_coeffs *BW_RESTRICT coeffs, float sample_rate);
static inline void bw_trem_set_sample_rate(
bw_trem_coeffs * BW_RESTRICT coeffs,
float sample_rate);
/*! <<<```
* Sets the `sample_rate` (Hz) value in `coeffs`.
*
* #### bw_trem_reset_coeffs()
* ```>>> */
static inline void bw_trem_reset_coeffs(bw_trem_coeffs *BW_RESTRICT coeffs);
static inline void bw_trem_reset_coeffs(
bw_trem_coeffs * BW_RESTRICT coeffs);
/*! <<<```
* Resets coefficients in `coeffs` to assume their target values.
*
* #### bw_trem_reset_state()
* ```>>> */
static inline void bw_trem_reset_state(const bw_trem_coeffs *BW_RESTRICT coeffs, bw_trem_state *BW_RESTRICT state);
static inline float bw_trem_reset_state(
const bw_trem_coeffs * BW_RESTRICT coeffs,
bw_trem_state * BW_RESTRICT state,
float x_0);
/*! <<<```
* Resets the given `state` to its initial values using the given `coeffs`.
* Resets the given `state` to its initial values using the given `coeffs`
* and the initial input value `x_0`.
*
* Returns the corresponding initial output value.
*
* #### bw_trem_reset_state_multi()
* ```>>> */
static inline void bw_trem_reset_state_multi(
const bw_trem_coeffs * BW_RESTRICT coeffs,
bw_trem_state * BW_RESTRICT const * BW_RESTRICT state,
const float * x_0,
float * y_0,
size_t n_channels);
/*! <<<```
* Resets each of the `n_channels` `state`s to its initial values using the
* given `coeffs` and the corresponding initial input value in the `x_0`
* array.
*
* The corresponding initial output values are written into the `y_0` array,
* if not `NULL`.
*
* #### bw_trem_update_coeffs_ctrl()
* ```>>> */
static inline void bw_trem_update_coeffs_ctrl(bw_trem_coeffs *BW_RESTRICT coeffs);
static inline void bw_trem_update_coeffs_ctrl(
bw_trem_coeffs * BW_RESTRICT coeffs);
/*! <<<```
* Triggers control-rate update of coefficients in `coeffs`.
*
* #### bw_trem_update_coeffs_audio()
* ```>>> */
static inline void bw_trem_update_coeffs_audio(bw_trem_coeffs *BW_RESTRICT coeffs);
static inline void bw_trem_update_coeffs_audio(
bw_trem_coeffs * BW_RESTRICT coeffs);
/*! <<<```
* Triggers audio-rate update of coefficients in `coeffs`.
*
* #### bw_trem_process1()
* ```>>> */
static inline float bw_trem_process1(const bw_trem_coeffs *BW_RESTRICT coeffs, bw_trem_state *BW_RESTRICT state, float x);
static inline float bw_trem_process1(
const bw_trem_coeffs * BW_RESTRICT coeffs,
bw_trem_state * BW_RESTRICT state,
float x);
/*! <<<```
* Processes one input sample `x` using `coeffs`, while using and updating
* `state`. Returns the corresponding output sample.
*
* #### bw_trem_process()
* ```>>> */
static inline void bw_trem_process(bw_trem_coeffs *BW_RESTRICT coeffs, bw_trem_state *BW_RESTRICT state, const float *x, float *y, size_t n_samples);
static inline void bw_trem_process(
bw_trem_coeffs * BW_RESTRICT coeffs,
bw_trem_state * BW_RESTRICT state,
const float * x,
float * y,
size_t n_samples);
/*! <<<```
* Processes the first `n_samples` of the input buffer `x` and fills the
* first `n_samples` of the output buffer `y`, while using and updating both
@ -137,7 +183,13 @@ static inline void bw_trem_process(bw_trem_coeffs *BW_RESTRICT coeffs, bw_trem_s
*
* #### bw_trem_process_multi()
* ```>>> */
static inline void bw_trem_process_multi(bw_trem_coeffs *BW_RESTRICT coeffs, bw_trem_state *BW_RESTRICT const *BW_RESTRICT state, const float * const *x, float * const *y, size_t n_channels, size_t n_samples);
static inline void bw_trem_process_multi(
bw_trem_coeffs * BW_RESTRICT coeffs,
bw_trem_state * BW_RESTRICT const * BW_RESTRICT state,
const float * const * x,
float * const * y,
size_t n_channels,
size_t n_samples);
/*! <<<```
* Processes the first `n_samples` of the `n_channels` input buffers `x` and
* fills the first `n_samples` of the `n_channels` output buffers `y`, while
@ -146,20 +198,57 @@ static inline void bw_trem_process_multi(bw_trem_coeffs *BW_RESTRICT coeffs, bw_
*
* #### bw_trem_set_rate()
* ```>>> */
static inline void bw_trem_set_rate(bw_trem_coeffs *BW_RESTRICT coeffs, float value);
static inline void bw_trem_set_rate(
bw_trem_coeffs * BW_RESTRICT coeffs,
float value);
/*! <<<```
* Sets the modulation rate `value` (Hz) in `coeffs`.
*
* `value` must be finite.
*
* Default value: `1.f`.
*
* #### bw_trem_set_amount()
* ```>>> */
static inline void bw_trem_set_amount(bw_trem_coeffs *BW_RESTRICT coeffs, float value);
static inline void bw_trem_set_amount(
bw_trem_coeffs * BW_RESTRICT coeffs,
float value);
/*! <<<```
* Sets the amount parameter to the given `value` (`0.f` = no tremolo, `1.f`
* = full tremolo, `-1.f` = full tremolo with inverted polarity) in `coeffs`.
*
* Valid range: [`-1.f` (full tremolo with inverted polarity),
* `1.f` (full tremolo)].
*
* Default value: `1.f`.
*
* #### bw_trem_coeffs_is_valid()
* ```>>> */
static inline char bw_trem_coeffs_is_valid(
const bw_trem_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_trem_coeffs`.
*
* #### bw_trem_state_is_valid()
* ```>>> */
static inline char bw_trem_state_is_valid(
const bw_trem_coeffs * BW_RESTRICT coeffs,
const bw_trem_state * BW_RESTRICT state);
/*! <<<```
* Tries to determine whether `state` 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.
*
* If `coeffs` is not `NULL` extra cross-checks might be performed (`state`
* is supposed to be associated to `coeffs`).
*
* `state` must at least point to a readable memory block of size greater
* than or equal to that of `bw_trem_state`.
* }}} */
#ifdef __cplusplus
@ -179,75 +268,298 @@ static inline void bw_trem_set_amount(bw_trem_coeffs *BW_RESTRICT coeffs, float
extern "C" {
#endif
#ifdef BW_DEBUG_DEEP
enum bw_trem_coeffs_state {
bw_trem_coeffs_state_invalid,
bw_trem_coeffs_state_init,
bw_trem_coeffs_state_set_sample_rate,
bw_trem_coeffs_state_reset_coeffs
};
#endif
struct bw_trem_coeffs {
#ifdef BW_DEBUG_DEEP
uint32_t hash;
enum bw_trem_coeffs_state state;
uint32_t reset_id;
#endif
// Sub-components
bw_phase_gen_coeffs phase_gen_coeffs;
bw_ring_mod_coeffs ring_mod_coeffs;
};
struct bw_trem_state {
#ifdef BW_DEBUG_DEEP
uint32_t hash;
uint32_t coeffs_reset_id;
#endif
// Sub-components
bw_phase_gen_state phase_gen_state;
};
static inline void bw_trem_init(bw_trem_coeffs *BW_RESTRICT coeffs) {
static inline void bw_trem_init(
bw_trem_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
bw_phase_gen_init(&coeffs->phase_gen_coeffs);
bw_ring_mod_init(&coeffs->ring_mod_coeffs);
#ifdef BW_DEBUG_DEEP
coeffs->hash = bw_hash_sdbm("bw_trem_coeffs");
coeffs->state = bw_trem_coeffs_state_init;
coeffs->reset_id = coeffs->hash + 1;
#endif
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_trem_coeffs_state_init);
}
static inline void bw_trem_set_sample_rate(bw_trem_coeffs *BW_RESTRICT coeffs, float sample_rate) {
static inline void bw_trem_set_sample_rate(
bw_trem_coeffs * BW_RESTRICT coeffs,
float sample_rate) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_init);
BW_ASSERT(bw_is_finite(sample_rate) && sample_rate > 0.f);
bw_phase_gen_set_sample_rate(&coeffs->phase_gen_coeffs, sample_rate);
bw_ring_mod_set_sample_rate(&coeffs->ring_mod_coeffs, sample_rate);
#ifdef BW_DEBUG_DEEP
coeffs->state = bw_trem_coeffs_state_set_sample_rate;
#endif
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_trem_coeffs_state_set_sample_rate);
}
static inline void bw_trem_reset_coeffs(bw_trem_coeffs *BW_RESTRICT coeffs) {
static inline void bw_trem_reset_coeffs(
bw_trem_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_set_sample_rate);
bw_phase_gen_reset_coeffs(&coeffs->phase_gen_coeffs);
bw_ring_mod_reset_coeffs(&coeffs->ring_mod_coeffs);
#ifdef BW_DEBUG_DEEP
coeffs->state = bw_trem_coeffs_state_reset_coeffs;
coeffs->reset_id++;
#endif
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_trem_coeffs_state_reset_coeffs);
}
static inline void bw_trem_reset_state(const bw_trem_coeffs *BW_RESTRICT coeffs, bw_trem_state *BW_RESTRICT state) {
bw_phase_gen_reset_state(&coeffs->phase_gen_coeffs, &state->phase_gen_state, 0.f);
static inline float bw_trem_reset_state(
const bw_trem_coeffs * BW_RESTRICT coeffs,
bw_trem_state * BW_RESTRICT state,
float x_0) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT(bw_is_finite(x_0));
float p, pi;
bw_phase_gen_reset_state(&coeffs->phase_gen_coeffs, &state->phase_gen_state, 0.f, &p, &pi);
const float c = bw_osc_sin_process1(p);
const float y = bw_ring_mod_process1(&coeffs->ring_mod_coeffs, x_0, 1.f + c);
#ifdef BW_DEBUG_DEEP
state->hash = bw_hash_sdbm("bw_trem_state");
state->coeffs_reset_id = coeffs->reset_id;
#endif
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(bw_trem_state_is_valid(coeffs, state));
BW_ASSERT(bw_is_finite(y));
return y;
}
static inline void bw_trem_update_coeffs_ctrl(bw_trem_coeffs *BW_RESTRICT coeffs) {
static inline void bw_trem_reset_state_multi(
const bw_trem_coeffs * BW_RESTRICT coeffs,
bw_trem_state * BW_RESTRICT const * BW_RESTRICT state,
const float * x_0,
float * y_0,
size_t n_channels) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT(x_0 != NULL);
if (y_0 != NULL)
for (size_t i = 0; i < n_channels; i++)
y_0[i] = bw_trem_reset_state(coeffs, state[i], x_0[i]);
else
for (size_t i = 0; i < n_channels; i++)
bw_trem_reset_state(coeffs, state[i], x_0[i]);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(y_0 != NULL ? bw_has_only_finite(y_0, n_channels) : 1);
}
static inline void bw_trem_update_coeffs_ctrl(
bw_trem_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
bw_phase_gen_update_coeffs_ctrl(&coeffs->phase_gen_coeffs);
bw_ring_mod_update_coeffs_ctrl(&coeffs->ring_mod_coeffs);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
}
static inline void bw_trem_update_coeffs_audio(bw_trem_coeffs *BW_RESTRICT coeffs) {
static inline void bw_trem_update_coeffs_audio(
bw_trem_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
bw_phase_gen_update_coeffs_audio(&coeffs->phase_gen_coeffs);
bw_ring_mod_update_coeffs_audio(&coeffs->ring_mod_coeffs);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
}
static inline float bw_trem_process1(const bw_trem_coeffs *BW_RESTRICT coeffs, bw_trem_state *BW_RESTRICT state, float x) {
static inline float bw_trem_process1(
const bw_trem_coeffs * BW_RESTRICT coeffs,
bw_trem_state * BW_RESTRICT state,
float x) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT_DEEP(bw_trem_state_is_valid(coeffs, state));
BW_ASSERT(bw_is_finite(x));
float p, pi;
bw_phase_gen_process1(&coeffs->phase_gen_coeffs, &state->phase_gen_state, &p, &pi);
const float c = bw_osc_sin_process1(p);
return bw_ring_mod_process1(&coeffs->ring_mod_coeffs, x, 1.f + c);
const float y = bw_ring_mod_process1(&coeffs->ring_mod_coeffs, x, 1.f + c);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(bw_trem_state_is_valid(coeffs, state));
BW_ASSERT(bw_is_finite(y));
return y;
}
static inline void bw_trem_process(bw_trem_coeffs *BW_RESTRICT coeffs, bw_trem_state *BW_RESTRICT state, const float *x, float *y, size_t n_samples) {
static inline void bw_trem_process(
bw_trem_coeffs * BW_RESTRICT coeffs,
bw_trem_state * BW_RESTRICT state,
const float * x,
float * y,
size_t n_samples) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT_DEEP(bw_trem_state_is_valid(coeffs, state));
BW_ASSERT(x != NULL);
BW_ASSERT_DEEP(bw_has_only_finite(x, n_samples));
BW_ASSERT(y != NULL);
bw_trem_update_coeffs_ctrl(coeffs);
for (size_t i = 0; i < n_samples; i++) {
bw_trem_update_coeffs_audio(coeffs);
y[i] = bw_trem_process1(coeffs, state, x[i]);
}
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(bw_trem_state_is_valid(coeffs, state));
BW_ASSERT_DEEP(bw_has_only_finite(y, n_samples));
}
static inline void bw_trem_process_multi(bw_trem_coeffs *BW_RESTRICT coeffs, bw_trem_state *BW_RESTRICT const *BW_RESTRICT state, const float * const *x, float * const *y, size_t n_channels, size_t n_samples) {
static inline void bw_trem_process_multi(
bw_trem_coeffs * BW_RESTRICT coeffs,
bw_trem_state * BW_RESTRICT const * BW_RESTRICT state,
const float * const * x,
float * const * y,
size_t n_channels,
size_t n_samples) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT(x != NULL);
BW_ASSERT(y != NULL);
bw_trem_update_coeffs_ctrl(coeffs);
for (size_t i = 0; i < n_samples; i++) {
bw_trem_update_coeffs_audio(coeffs);
for (size_t j = 0; j < n_channels; j++)
y[j][i] = bw_trem_process1(coeffs, state[j], x[j][i]);
}
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_reset_coeffs);
}
static inline void bw_trem_set_rate(bw_trem_coeffs *BW_RESTRICT coeffs, float value) {
static inline void bw_trem_set_rate(
bw_trem_coeffs * BW_RESTRICT coeffs,
float value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_init);
BW_ASSERT(bw_is_finite(value));
bw_phase_gen_set_frequency(&coeffs->phase_gen_coeffs, value);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_init);
}
static inline void bw_trem_set_amount(bw_trem_coeffs *BW_RESTRICT coeffs, float value) {
static inline void bw_trem_set_amount(
bw_trem_coeffs * BW_RESTRICT coeffs,
float value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_init);
BW_ASSERT(bw_is_finite(value));
BW_ASSERT(value >= -1.f && value <= 1.f);
bw_ring_mod_set_amount(&coeffs->ring_mod_coeffs, value);
BW_ASSERT_DEEP(bw_trem_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_trem_coeffs_state_init);
}
static inline char bw_trem_coeffs_is_valid(
const bw_trem_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
#ifdef BW_DEBUG_DEEP
if (coeffs->hash != bw_hash_sdbm("bw_trem_coeffs"))
return 0;
if (coeffs->state < bw_trem_coeffs_state_init || coeffs->state > bw_trem_coeffs_state_reset_coeffs)
return 0;
#endif
return bw_phase_gen_coeffs_is_valid(&coeffs->phase_gen_coeffs) && bw_ring_mod_coeffs_is_valid(&coeffs->ring_mod_coeffs);
}
static inline char bw_trem_state_is_valid(
const bw_trem_coeffs * BW_RESTRICT coeffs,
const bw_trem_state * BW_RESTRICT state) {
BW_ASSERT(state != NULL);
#ifdef BW_DEBUG_DEEP
if (state->hash != bw_hash_sdbm("bw_trem_state"))
return 0;
if (coeffs != NULL && coeffs->reset_id != state->coeffs_reset_id)
return 0;
#endif
return bw_phase_gen_state_is_valid(coeffs ? &coeffs->phase_gen_coeffs : NULL, &state->phase_gen_state);
}
#ifdef __cplusplus
@ -267,19 +579,40 @@ class Trem {
public:
Trem();
void setSampleRate(float sampleRate);
void reset();
void setSampleRate(
float sampleRate);
void reset(
float x0 = 0.f,
float * BW_RESTRICT y0 = nullptr);
void reset(
float x0,
std::array<float, N_CHANNELS> * BW_RESTRICT y0);
void reset(
const float * x0,
float * y0 = nullptr);
void reset(
std::array<float, N_CHANNELS> x0,
std::array<float, N_CHANNELS> * BW_RESTRICT y0 = nullptr);
void process(
const float * const * x,
float * const * y,
size_t nSamples);
void process(
std::array<const float *, N_CHANNELS> x,
std::array<float *, N_CHANNELS> y,
size_t nSamples);
void setRate(float value);
void setAmount(float value);
void setRate(
float value);
void setAmount(
float value);
/*! <<<...
* }
* ```
@ -304,15 +637,44 @@ inline Trem<N_CHANNELS>::Trem() {
}
template<size_t N_CHANNELS>
inline void Trem<N_CHANNELS>::setSampleRate(float sampleRate) {
inline void Trem<N_CHANNELS>::setSampleRate(
float sampleRate) {
bw_trem_set_sample_rate(&coeffs, sampleRate);
}
template<size_t N_CHANNELS>
inline void Trem<N_CHANNELS>::reset() {
inline void Trem<N_CHANNELS>::reset(
float x0,
float * BW_RESTRICT y0) {
bw_trem_reset_coeffs(&coeffs);
if (y0 != nullptr)
for (size_t i = 0; i < N_CHANNELS; i++)
bw_trem_reset_state(&coeffs, states + i);
y0[i] = bw_trem_reset_state(&coeffs, states + i, x0);
else
for (size_t i = 0; i < N_CHANNELS; i++)
bw_trem_reset_state(&coeffs, states + i, x0);
}
template<size_t N_CHANNELS>
inline void Trem<N_CHANNELS>::reset(
float x0,
std::array<float, N_CHANNELS> * BW_RESTRICT y0) {
reset(x0, y0 != nullptr ? y0->data() : nullptr);
}
template<size_t N_CHANNELS>
inline void Trem<N_CHANNELS>::reset(
const float * x0,
float * y0) {
bw_trem_reset_coeffs(&coeffs);
bw_trem_reset_state_multi(&coeffs, statesP, x0, y0, N_CHANNELS);
}
template<size_t N_CHANNELS>
inline void Trem<N_CHANNELS>::reset(
std::array<float, N_CHANNELS> x0,
std::array<float, N_CHANNELS> * BW_RESTRICT y0) {
reset(x0.data(), y0 != nullptr ? y0->data() : nullptr);
}
template<size_t N_CHANNELS>
@ -332,12 +694,14 @@ inline void Trem<N_CHANNELS>::process(
}
template<size_t N_CHANNELS>
inline void Trem<N_CHANNELS>::setRate(float value) {
inline void Trem<N_CHANNELS>::setRate(
float value) {
bw_trem_set_rate(&coeffs, value);
}
template<size_t N_CHANNELS>
inline void Trem<N_CHANNELS>::setAmount(float value) {
inline void Trem<N_CHANNELS>::setAmount(
float value) {
bw_trem_set_amount(&coeffs, value);
}