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finalized bw_fuzz + examples

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This commit is contained in:
Stefano D'Angelo 2023-09-14 11:07:33 +02:00
parent 77db1a3cdb
commit 0ef455722f
4 changed files with 442 additions and 65 deletions
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2
examples/fx_fuzz/src/bw_example_fx_fuzz.c
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@ -32,7 +32,7 @@ void bw_example_fx_fuzz_set_sample_rate(bw_example_fx_fuzz *instance, float samp
void bw_example_fx_fuzz_reset(bw_example_fx_fuzz *instance) { void bw_example_fx_fuzz_reset(bw_example_fx_fuzz *instance) {
bw_fuzz_reset_coeffs(&instance->fuzz_coeffs); bw_fuzz_reset_coeffs(&instance->fuzz_coeffs);
bw_fuzz_reset_state(&instance->fuzz_coeffs, &instance->fuzz_state); bw_fuzz_reset_state(&instance->fuzz_coeffs, &instance->fuzz_state, 0.f);
bw_src_int_reset_state(&instance->src_up_coeffs, &instance->src_up_state, 0.f); bw_src_int_reset_state(&instance->src_up_coeffs, &instance->src_up_state, 0.f);
bw_src_int_reset_state(&instance->src_down_coeffs, &instance->src_down_state, 0.f); bw_src_int_reset_state(&instance->src_down_coeffs, &instance->src_down_state, 0.f);
} }

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

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

499
include/bw_fuzz.h
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@ -36,6 +36,12 @@
* <ul> * <ul>
* <li>Improved algorithm to be a bit more faithful to the * <li>Improved algorithm to be a bit more faithful to the
* original.</li> * original.</li>
* <li>Added <code>bw_fuzz_reset_state_multi()</code> and updated C++
* API in this regard.</li>
* <li>Now <code>bw_fuzz_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_fuzz_process()</code> and * <li><code>bw_fuzz_process()</code> and
* <code>bw_fuzz_process_multi()</code> now use <code>size_t</code> * <code>bw_fuzz_process_multi()</code> now use <code>size_t</code>
* to count samples and channels.</li> * to count samples and channels.</li>
@ -45,6 +51,8 @@
* <li>Added overloaded C++ <code>process()</code> function taking * <li>Added overloaded C++ <code>process()</code> function taking
* C-style arrays as arguments.</li> * C-style arrays as arguments.</li>
* <li>Removed usage of reserved identifiers.</li> * <li>Removed usage of reserved identifiers.</li>
* <li>Clearly specified parameter validity ranges.</li>
* <li>Added debugging code.</li>
* </ul> * </ul>
* </li> * </li>
* <li>Version <strong>0.6.0</strong>: * <li>Version <strong>0.6.0</strong>:
@ -85,50 +93,86 @@ typedef struct bw_fuzz_state bw_fuzz_state;
* *
* #### bw_fuzz_init() * #### bw_fuzz_init()
* ```>>> */ * ```>>> */
static inline void bw_fuzz_init(bw_fuzz_coeffs *BW_RESTRICT coeffs); static inline void bw_fuzz_init(
bw_fuzz_coeffs * BW_RESTRICT coeffs);
/*! <<<``` /*! <<<```
* Initializes input parameter values in `coeffs`. * Initializes input parameter values in `coeffs`.
* *
* #### bw_fuzz_set_sample_rate() * #### bw_fuzz_set_sample_rate()
* ```>>> */ * ```>>> */
static inline void bw_fuzz_set_sample_rate(bw_fuzz_coeffs *BW_RESTRICT coeffs, float sample_rate); static inline void bw_fuzz_set_sample_rate(
bw_fuzz_coeffs * BW_RESTRICT coeffs,
float sample_rate);
/*! <<<``` /*! <<<```
* Sets the `sample_rate` (Hz) value in `coeffs`. * Sets the `sample_rate` (Hz) value in `coeffs`.
* *
* #### bw_fuzz_reset_coeffs() * #### bw_fuzz_reset_coeffs()
* ```>>> */ * ```>>> */
static inline void bw_fuzz_reset_coeffs(bw_fuzz_coeffs *BW_RESTRICT coeffs); static inline void bw_fuzz_reset_coeffs(
bw_fuzz_coeffs * BW_RESTRICT coeffs);
/*! <<<``` /*! <<<```
* Resets coefficients in `coeffs` to assume their target values. * Resets coefficients in `coeffs` to assume their target values.
* *
* #### bw_fuzz_reset_state() * #### bw_fuzz_reset_state()
* ```>>> */ * ```>>> */
static inline void bw_fuzz_reset_state(const bw_fuzz_coeffs *BW_RESTRICT coeffs, bw_fuzz_state *BW_RESTRICT state); static inline float bw_fuzz_reset_state(
const bw_fuzz_coeffs * BW_RESTRICT coeffs,
bw_fuzz_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_fuzz_reset_state_multi()
* ```>>> */
static inline void bw_fuzz_reset_state_multi(
const bw_fuzz_coeffs * BW_RESTRICT coeffs,
bw_fuzz_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_fuzz_update_coeffs_ctrl() * #### bw_fuzz_update_coeffs_ctrl()
* ```>>> */ * ```>>> */
static inline void bw_fuzz_update_coeffs_ctrl(bw_fuzz_coeffs *BW_RESTRICT coeffs); static inline void bw_fuzz_update_coeffs_ctrl(
bw_fuzz_coeffs * BW_RESTRICT coeffs);
/*! <<<``` /*! <<<```
* Triggers control-rate update of coefficients in `coeffs`. * Triggers control-rate update of coefficients in `coeffs`.
* *
* #### bw_fuzz_update_coeffs_audio() * #### bw_fuzz_update_coeffs_audio()
* ```>>> */ * ```>>> */
static inline void bw_fuzz_update_coeffs_audio(bw_fuzz_coeffs *BW_RESTRICT coeffs); static inline void bw_fuzz_update_coeffs_audio(
bw_fuzz_coeffs * BW_RESTRICT coeffs);
/*! <<<``` /*! <<<```
* Triggers audio-rate update of coefficients in `coeffs`. * Triggers audio-rate update of coefficients in `coeffs`.
* *
* #### bw_fuzz_process1() * #### bw_fuzz_process1()
* ```>>> */ * ```>>> */
static inline float bw_fuzz_process1(const bw_fuzz_coeffs *BW_RESTRICT coeffs, bw_fuzz_state *BW_RESTRICT state, float x); static inline float bw_fuzz_process1(
const bw_fuzz_coeffs * BW_RESTRICT coeffs,
bw_fuzz_state * BW_RESTRICT state,
float x);
/*! <<<``` /*! <<<```
* Processes one input sample `x` using `coeffs`, while using and updating * Processes one input sample `x` using `coeffs`, while using and updating
* `state`. Returns the corresponding output sample. * `state`. Returns the corresponding output sample.
* *
* #### bw_fuzz_process() * #### bw_fuzz_process()
* ```>>> */ * ```>>> */
static inline void bw_fuzz_process(bw_fuzz_coeffs *BW_RESTRICT coeffs, bw_fuzz_state *BW_RESTRICT state, const float *x, float *y, size_t n_samples); static inline void bw_fuzz_process(
bw_fuzz_coeffs * BW_RESTRICT coeffs,
bw_fuzz_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 * 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 * first `n_samples` of the output buffer `y`, while using and updating both
@ -136,7 +180,13 @@ static inline void bw_fuzz_process(bw_fuzz_coeffs *BW_RESTRICT coeffs, bw_fuzz_s
* *
* #### bw_fuzz_process_multi() * #### bw_fuzz_process_multi()
* ```>>> */ * ```>>> */
static inline void bw_fuzz_process_multi(bw_fuzz_coeffs *BW_RESTRICT coeffs, bw_fuzz_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_fuzz_process_multi(
bw_fuzz_coeffs * BW_RESTRICT coeffs,
bw_fuzz_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 * 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 * fills the first `n_samples` of the `n_channels` output buffers `y`, while
@ -145,21 +195,56 @@ static inline void bw_fuzz_process_multi(bw_fuzz_coeffs *BW_RESTRICT coeffs, bw_
* *
* #### bw_fuzz_set_fuzz() * #### bw_fuzz_set_fuzz()
* ```>>> */ * ```>>> */
static inline void bw_fuzz_set_fuzz(bw_fuzz_coeffs *BW_RESTRICT coeffs, float value); static inline void bw_fuzz_set_fuzz(
bw_fuzz_coeffs * BW_RESTRICT coeffs,
float value);
/*! <<<``` /*! <<<```
* Sets the fuzz (input gain, approximately) to the given `value` in [`0.f`, * Sets the fuzz (input gain, approximately) to the given `value` in
* `1.f`] in `coeffs`. * `coeffs`.
*
* Valid range: [`0.f` (low fuzz), `1.f` (high fuzz)].
* *
* Default value: `0.f`. * Default value: `0.f`.
* *
* #### bw_fuzz_set_volume() * #### bw_fuzz_set_volume()
* ```>>> */ * ```>>> */
static inline void bw_fuzz_set_volume(bw_fuzz_coeffs *BW_RESTRICT coeffs, float value); static inline void bw_fuzz_set_volume(
bw_fuzz_coeffs * BW_RESTRICT coeffs,
float value);
/*! <<<``` /*! <<<```
* Sets the volume (output gain) to the given `value` in [`0.f`, `1.f`] in * Sets the volume (output gain) to the given `value` in `coeffs`.
* `coeffs`. *
* Valid range: [`0.f` (silence), `1.f` (max volume)].
* *
* Default value: `1.f`. * Default value: `1.f`.
*
* #### bw_fuzz_coeffs_is_valid()
* ```>>> */
static inline char bw_fuzz_coeffs_is_valid(
const bw_fuzz_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_fuzz_coeffs`.
*
* #### bw_fuzz_state_is_valid()
* ```>>> */
static inline char bw_fuzz_state_is_valid(
const bw_fuzz_coeffs * BW_RESTRICT coeffs,
const bw_fuzz_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_fuzz_state`.
* }}} */ * }}} */
#ifdef __cplusplus #ifdef __cplusplus
@ -182,17 +267,37 @@ static inline void bw_fuzz_set_volume(bw_fuzz_coeffs *BW_RESTRICT coeffs, float
extern "C" { extern "C" {
#endif #endif
#ifdef BW_DEBUG_DEEP
enum bw_fuzz_coeffs_state {
bw_fuzz_coeffs_state_invalid,
bw_fuzz_coeffs_state_init,
bw_fuzz_coeffs_state_set_sample_rate,
bw_fuzz_coeffs_state_reset_coeffs
};
#endif
struct bw_fuzz_coeffs { struct bw_fuzz_coeffs {
#ifdef BW_DEBUG_DEEP
uint32_t hash;
enum bw_fuzz_coeffs_state state;
uint32_t reset_id;
#endif
// Sub-components // Sub-components
bw_hp1_coeffs hp1_in_coeffs; bw_hp1_coeffs hp1_in_coeffs;
bw_svf_coeffs lp2_coeffs; bw_svf_coeffs lp2_coeffs;
bw_peak_coeffs peak_coeffs; bw_peak_coeffs peak_coeffs;
bw_satur_coeffs satur_coeffs; bw_satur_coeffs satur_coeffs;
bw_hp1_coeffs hp1_out_coeffs; bw_hp1_coeffs hp1_out_coeffs;
bw_gain_coeffs gain_coeffs; bw_gain_coeffs gain_coeffs;
}; };
struct bw_fuzz_state { struct bw_fuzz_state {
#ifdef BW_DEBUG_DEEP
uint32_t hash;
uint32_t coeffs_reset_id;
#endif
// Sub-components // Sub-components
bw_hp1_state hp1_in_state; bw_hp1_state hp1_in_state;
bw_svf_state lp2_1_state; bw_svf_state lp2_1_state;
@ -202,7 +307,10 @@ struct bw_fuzz_state {
bw_hp1_state hp1_out_state; bw_hp1_state hp1_out_state;
}; };
static inline void bw_fuzz_init(bw_fuzz_coeffs *BW_RESTRICT coeffs) { static inline void bw_fuzz_init(
bw_fuzz_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
bw_hp1_init(&coeffs->hp1_in_coeffs); bw_hp1_init(&coeffs->hp1_in_coeffs);
bw_svf_init(&coeffs->lp2_coeffs); bw_svf_init(&coeffs->lp2_coeffs);
bw_peak_init(&coeffs->peak_coeffs); bw_peak_init(&coeffs->peak_coeffs);
@ -215,9 +323,24 @@ static inline void bw_fuzz_init(bw_fuzz_coeffs *BW_RESTRICT coeffs) {
bw_peak_set_bandwidth(&coeffs->peak_coeffs, 6.6f); bw_peak_set_bandwidth(&coeffs->peak_coeffs, 6.6f);
bw_satur_set_bias(&coeffs->satur_coeffs, 0.145f); bw_satur_set_bias(&coeffs->satur_coeffs, 0.145f);
bw_hp1_set_cutoff(&coeffs->hp1_out_coeffs, 30.f); bw_hp1_set_cutoff(&coeffs->hp1_out_coeffs, 30.f);
#ifdef BW_DEBUG_DEEP
coeffs->hash = bw_hash_sdbm("bw_fuzz_coeffs");
coeffs->state = bw_fuzz_coeffs_state_init;
coeffs->reset_id = coeffs->hash + 1;
#endif
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_fuzz_coeffs_state_init);
} }
static inline void bw_fuzz_set_sample_rate(bw_fuzz_coeffs *BW_RESTRICT coeffs, float sample_rate) { static inline void bw_fuzz_set_sample_rate(
bw_fuzz_coeffs * BW_RESTRICT coeffs,
float sample_rate) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_init);
BW_ASSERT(bw_is_finite(sample_rate) && sample_rate > 0.f);
bw_hp1_set_sample_rate(&coeffs->hp1_in_coeffs, sample_rate); bw_hp1_set_sample_rate(&coeffs->hp1_in_coeffs, sample_rate);
bw_svf_set_sample_rate(&coeffs->lp2_coeffs, sample_rate); bw_svf_set_sample_rate(&coeffs->lp2_coeffs, sample_rate);
bw_peak_set_sample_rate(&coeffs->peak_coeffs, sample_rate); bw_peak_set_sample_rate(&coeffs->peak_coeffs, sample_rate);
@ -228,66 +351,262 @@ static inline void bw_fuzz_set_sample_rate(bw_fuzz_coeffs *BW_RESTRICT coeffs, f
bw_svf_reset_coeffs(&coeffs->lp2_coeffs); bw_svf_reset_coeffs(&coeffs->lp2_coeffs);
bw_satur_reset_coeffs(&coeffs->satur_coeffs); bw_satur_reset_coeffs(&coeffs->satur_coeffs);
bw_hp1_reset_coeffs(&coeffs->hp1_out_coeffs); bw_hp1_reset_coeffs(&coeffs->hp1_out_coeffs);
#ifdef BW_DEBUG_DEEP
coeffs->state = bw_fuzz_coeffs_state_set_sample_rate;
#endif
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_fuzz_coeffs_state_set_sample_rate);
} }
static inline void bw_fuzz_reset_coeffs(bw_fuzz_coeffs *BW_RESTRICT coeffs) { static inline void bw_fuzz_reset_coeffs(
bw_fuzz_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_set_sample_rate);
bw_peak_reset_coeffs(&coeffs->peak_coeffs); bw_peak_reset_coeffs(&coeffs->peak_coeffs);
bw_gain_reset_coeffs(&coeffs->gain_coeffs); bw_gain_reset_coeffs(&coeffs->gain_coeffs);
#ifdef BW_DEBUG_DEEP
coeffs->state = bw_fuzz_coeffs_state_reset_coeffs;
coeffs->reset_id++;
#endif
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_fuzz_coeffs_state_reset_coeffs);
} }
static inline void bw_fuzz_reset_state(const bw_fuzz_coeffs *BW_RESTRICT coeffs, bw_fuzz_state *BW_RESTRICT state) { static inline float bw_fuzz_reset_state(
bw_hp1_reset_state(&coeffs->hp1_in_coeffs, &state->hp1_in_state, 0.f); const bw_fuzz_coeffs * BW_RESTRICT coeffs,
bw_svf_reset_state(&coeffs->lp2_coeffs, &state->lp2_1_state, 0.f); bw_fuzz_state * BW_RESTRICT state,
bw_svf_reset_state(&coeffs->lp2_coeffs, &state->lp2_2_state, 0.f); float x_0) {
bw_peak_reset_state(&coeffs->peak_coeffs, &state->peak_state, 0.f); BW_ASSERT(coeffs != NULL);
bw_satur_reset_state(&coeffs->satur_coeffs, &state->satur_state); BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
bw_hp1_reset_state(&coeffs->hp1_out_coeffs, &state->hp1_out_state, 0.f); BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT(bw_is_finite(x_0));
float y = bw_hp1_reset_state(&coeffs->hp1_in_coeffs, &state->hp1_in_state, x_0);
float v_lp, v_hp, v_bp;
bw_svf_reset_state(&coeffs->lp2_coeffs, &state->lp2_1_state, y, &v_lp, &v_bp, &v_hp);
bw_svf_reset_state(&coeffs->lp2_coeffs, &state->lp2_2_state, v_lp, &v_lp, &v_bp, &v_hp);
y = bw_peak_reset_state(&coeffs->peak_coeffs, &state->peak_state, v_lp);
y = bw_satur_reset_state(&coeffs->satur_coeffs, &state->satur_state, y);
y = bw_hp1_reset_state(&coeffs->hp1_out_coeffs, &state->hp1_out_state, y);
y = bw_gain_get_gain_cur(&coeffs->gain_coeffs) * y;
#ifdef BW_DEBUG_DEEP
state->hash = bw_hash_sdbm("bw_fuzz_state");
state->coeffs_reset_id = coeffs->reset_id;
#endif
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(bw_fuzz_state_is_valid(coeffs, state));
BW_ASSERT(bw_is_finite(y));
return y;
} }
static inline void bw_fuzz_update_coeffs_ctrl(bw_fuzz_coeffs *BW_RESTRICT coeffs) { static inline void bw_fuzz_reset_state_multi(
const bw_fuzz_coeffs * BW_RESTRICT coeffs,
bw_fuzz_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_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_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_fuzz_reset_state(coeffs, state[i], x_0[i]);
else
for (size_t i = 0; i < n_channels; i++)
bw_fuzz_reset_state(coeffs, state[i], x_0[i]);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(y_0 != NULL ? bw_has_only_finite(y_0, n_channels) : 1);
}
static inline void bw_fuzz_update_coeffs_ctrl(
bw_fuzz_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
bw_peak_update_coeffs_ctrl(&coeffs->peak_coeffs); bw_peak_update_coeffs_ctrl(&coeffs->peak_coeffs);
bw_gain_update_coeffs_ctrl(&coeffs->gain_coeffs); bw_gain_update_coeffs_ctrl(&coeffs->gain_coeffs);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
} }
static inline void bw_fuzz_update_coeffs_audio(bw_fuzz_coeffs *BW_RESTRICT coeffs) { static inline void bw_fuzz_update_coeffs_audio(
bw_fuzz_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
bw_peak_update_coeffs_audio(&coeffs->peak_coeffs); bw_peak_update_coeffs_audio(&coeffs->peak_coeffs);
bw_gain_update_coeffs_audio(&coeffs->gain_coeffs); bw_gain_update_coeffs_audio(&coeffs->gain_coeffs);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
} }
static inline float bw_fuzz_process1(const bw_fuzz_coeffs *BW_RESTRICT coeffs, bw_fuzz_state *BW_RESTRICT state, float x) { static inline float bw_fuzz_process1(
const bw_fuzz_coeffs * BW_RESTRICT coeffs,
bw_fuzz_state * BW_RESTRICT state,
float x) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT_DEEP(bw_fuzz_state_is_valid(coeffs, state));
BW_ASSERT(bw_is_finite(x));
float y = bw_hp1_process1(&coeffs->hp1_in_coeffs, &state->hp1_in_state, x); float y = bw_hp1_process1(&coeffs->hp1_in_coeffs, &state->hp1_in_state, x);
float v_lp, v_hp, v_bp; float v_lp, v_hp, v_bp;
bw_svf_process1(&coeffs->lp2_coeffs, &state->lp2_1_state, x, &v_lp, &v_bp, &v_hp); bw_svf_process1(&coeffs->lp2_coeffs, &state->lp2_1_state, y, &v_lp, &v_bp, &v_hp);
bw_svf_process1(&coeffs->lp2_coeffs, &state->lp2_2_state, v_lp, &v_lp, &v_bp, &v_hp); bw_svf_process1(&coeffs->lp2_coeffs, &state->lp2_2_state, v_lp, &v_lp, &v_bp, &v_hp);
y = bw_peak_process1(&coeffs->peak_coeffs, &state->peak_state, v_lp); y = bw_peak_process1(&coeffs->peak_coeffs, &state->peak_state, v_lp);
y = bw_satur_process1(&coeffs->satur_coeffs, &state->satur_state, y); y = bw_satur_process1(&coeffs->satur_coeffs, &state->satur_state, y);
y = bw_hp1_process1(&coeffs->hp1_out_coeffs, &state->hp1_out_state, y); y = bw_hp1_process1(&coeffs->hp1_out_coeffs, &state->hp1_out_state, y);
return bw_gain_process1(&coeffs->gain_coeffs, y); y = bw_gain_process1(&coeffs->gain_coeffs, y);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(bw_fuzz_state_is_valid(coeffs, state));
BW_ASSERT(bw_is_finite(y));
return y;
} }
static inline void bw_fuzz_process(bw_fuzz_coeffs *BW_RESTRICT coeffs, bw_fuzz_state *BW_RESTRICT state, const float *x, float *y, size_t n_samples) { static inline void bw_fuzz_process(
bw_fuzz_coeffs * BW_RESTRICT coeffs,
bw_fuzz_state * BW_RESTRICT state,
const float * x,
float * y,
size_t n_samples) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT_DEEP(bw_fuzz_state_is_valid(coeffs, state));
BW_ASSERT(x != NULL);
BW_ASSERT_DEEP(bw_has_only_finite(x, n_samples));
BW_ASSERT(y != NULL);
bw_fuzz_update_coeffs_ctrl(coeffs); bw_fuzz_update_coeffs_ctrl(coeffs);
for (size_t i = 0; i < n_samples; i++) { for (size_t i = 0; i < n_samples; i++) {
bw_fuzz_update_coeffs_audio(coeffs); bw_fuzz_update_coeffs_audio(coeffs);
y[i] = bw_fuzz_process1(coeffs, state, x[i]); y[i] = bw_fuzz_process1(coeffs, state, x[i]);
} }
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(bw_fuzz_state_is_valid(coeffs, state));
BW_ASSERT_DEEP(bw_has_only_finite(y, n_samples));
} }
static inline void bw_fuzz_process_multi(bw_fuzz_coeffs *BW_RESTRICT coeffs, bw_fuzz_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_fuzz_process_multi(
bw_fuzz_coeffs * BW_RESTRICT coeffs,
bw_fuzz_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_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT(x != NULL);
BW_ASSERT(y != NULL);
bw_fuzz_update_coeffs_ctrl(coeffs); bw_fuzz_update_coeffs_ctrl(coeffs);
for (size_t i = 0; i < n_samples; i++) { for (size_t i = 0; i < n_samples; i++) {
bw_fuzz_update_coeffs_audio(coeffs); bw_fuzz_update_coeffs_audio(coeffs);
for (size_t j = 0; j < n_channels; j++) for (size_t j = 0; j < n_channels; j++)
y[j][i] = bw_fuzz_process1(coeffs, state[j], x[j][i]); y[j][i] = bw_fuzz_process1(coeffs, state[j], x[j][i]);
} }
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_reset_coeffs);
} }
static inline void bw_fuzz_set_fuzz(bw_fuzz_coeffs *BW_RESTRICT coeffs, float value) { static inline void bw_fuzz_set_fuzz(
bw_fuzz_coeffs * BW_RESTRICT coeffs,
float value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_init);
BW_ASSERT(bw_is_finite(value));
BW_ASSERT(value >= 0.f && value <= 1.f);
bw_peak_set_peak_gain_dB(&coeffs->peak_coeffs, 30.f * value); bw_peak_set_peak_gain_dB(&coeffs->peak_coeffs, 30.f * value);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_init);
} }
static inline void bw_fuzz_set_volume(bw_fuzz_coeffs *BW_RESTRICT coeffs, float value) { static inline void bw_fuzz_set_volume(
bw_fuzz_coeffs * BW_RESTRICT coeffs,
float value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_init);
BW_ASSERT(bw_is_finite(value));
BW_ASSERT(value >= 0.f && value <= 1.f);
bw_gain_set_gain_lin(&coeffs->gain_coeffs, value * value * value); bw_gain_set_gain_lin(&coeffs->gain_coeffs, value * value * value);
BW_ASSERT_DEEP(bw_fuzz_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_fuzz_coeffs_state_init);
}
static inline char bw_fuzz_coeffs_is_valid(
const bw_fuzz_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
#ifdef BW_DEBUG_DEEP
if (coeffs->hash != bw_hash_sdbm("bw_fuzz_coeffs"))
return 0;
if (coeffs->state < bw_fuzz_coeffs_state_init || coeffs->state > bw_fuzz_coeffs_state_reset_coeffs)
return 0;
#endif
return bw_hp1_coeffs_is_valid(&coeffs->hp1_in_coeffs)
&& bw_svf_coeffs_is_valid(&coeffs->lp2_coeffs)
&& bw_peak_coeffs_is_valid(&coeffs->peak_coeffs)
&& bw_satur_coeffs_is_valid(&coeffs->satur_coeffs)
&& bw_hp1_coeffs_is_valid(&coeffs->hp1_out_coeffs)
&& bw_gain_coeffs_is_valid(&coeffs->gain_coeffs);
}
static inline char bw_fuzz_state_is_valid(
const bw_fuzz_coeffs * BW_RESTRICT coeffs,
const bw_fuzz_state * BW_RESTRICT state) {
BW_ASSERT(state != NULL);
#ifdef BW_DEBUG_DEEP
if (state->hash != bw_hash_sdbm("bw_fuzz_state"))
return 0;
if (coeffs != NULL && coeffs->reset_id != state->coeffs_reset_id)
return 0;
#endif
(void)coeffs;
return bw_hp1_state_is_valid(&coeffs->hp1_in_coeffs, &state->hp1_in_state)
&& bw_svf_state_is_valid(&coeffs->lp2_coeffs, &state->lp2_1_state)
&& bw_svf_state_is_valid(&coeffs->lp2_coeffs, &state->lp2_2_state)
&& bw_peak_state_is_valid(&coeffs->peak_coeffs, &state->peak_state)
&& bw_satur_state_is_valid(&coeffs->satur_coeffs, &state->satur_state)
&& bw_hp1_state_is_valid(&coeffs->hp1_out_coeffs, &state->hp1_out_state);
} }
#ifdef __cplusplus #ifdef __cplusplus
@ -307,19 +626,40 @@ class Fuzz {
public: public:
Fuzz(); Fuzz();
void setSampleRate(float sampleRate); void setSampleRate(
void reset(); 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( void process(
const float * const *x, const float * const * x,
float * const *y, float * const * y,
size_t nSamples); size_t nSamples);
void process( void process(
std::array<const float *, N_CHANNELS> x, std::array<const float *, N_CHANNELS> x,
std::array<float *, N_CHANNELS> y, std::array<float *, N_CHANNELS> y,
size_t nSamples); size_t nSamples);
void setFuzz(float value); void setFuzz(
void setVolume(float value); float value);
void setVolume(
float value);
/*! <<<... /*! <<<...
* } * }
* ``` * ```
@ -331,9 +671,9 @@ public:
* change at any time in future versions. Please, do not use it directly. */ * change at any time in future versions. Please, do not use it directly. */
private: private:
bw_fuzz_coeffs coeffs; bw_fuzz_coeffs coeffs;
bw_fuzz_state states[N_CHANNELS]; bw_fuzz_state states[N_CHANNELS];
bw_fuzz_state *BW_RESTRICT statesP[N_CHANNELS]; bw_fuzz_state * BW_RESTRICT statesP[N_CHANNELS];
}; };
template<size_t N_CHANNELS> template<size_t N_CHANNELS>
@ -344,40 +684,71 @@ inline Fuzz<N_CHANNELS>::Fuzz() {
} }
template<size_t N_CHANNELS> template<size_t N_CHANNELS>
inline void Fuzz<N_CHANNELS>::setSampleRate(float sampleRate) { inline void Fuzz<N_CHANNELS>::setSampleRate(
float sampleRate) {
bw_fuzz_set_sample_rate(&coeffs, sampleRate); bw_fuzz_set_sample_rate(&coeffs, sampleRate);
} }
template<size_t N_CHANNELS> template<size_t N_CHANNELS>
inline void Fuzz<N_CHANNELS>::reset() { inline void Fuzz<N_CHANNELS>::reset(
float x0,
float * BW_RESTRICT y0) {
bw_fuzz_reset_coeffs(&coeffs); bw_fuzz_reset_coeffs(&coeffs);
for (size_t i = 0; i < N_CHANNELS; i++) if (y0 != nullptr)
bw_fuzz_reset_state(&coeffs, states + i); for (size_t i = 0; i < N_CHANNELS; i++)
y0[i] = bw_fuzz_reset_state(&coeffs, states + i, x0);
else
for (size_t i = 0; i < N_CHANNELS; i++)
bw_fuzz_reset_state(&coeffs, states + i, x0);
}
template<size_t N_CHANNELS>
inline void Fuzz<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 Fuzz<N_CHANNELS>::reset(
const float * x0,
float * y0) {
bw_fuzz_reset_coeffs(&coeffs);
bw_fuzz_reset_state_multi(&coeffs, statesP, x0, y0, N_CHANNELS);
}
template<size_t N_CHANNELS>
inline void Fuzz<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> template<size_t N_CHANNELS>
inline void Fuzz<N_CHANNELS>::process( inline void Fuzz<N_CHANNELS>::process(
const float * const *x, const float * const * x,
float * const *y, float * const * y,
size_t nSamples) { size_t nSamples) {
bw_fuzz_process_multi(&coeffs, statesP, x, y, N_CHANNELS, nSamples); bw_fuzz_process_multi(&coeffs, statesP, x, y, N_CHANNELS, nSamples);
} }
template<size_t N_CHANNELS> template<size_t N_CHANNELS>
inline void Fuzz<N_CHANNELS>::process( inline void Fuzz<N_CHANNELS>::process(
std::array<const float *, N_CHANNELS> x, std::array<const float *, N_CHANNELS> x,
std::array<float *, N_CHANNELS> y, std::array<float *, N_CHANNELS> y,
size_t nSamples) { size_t nSamples) {
process(x.data(), y.data(), nSamples); process(x.data(), y.data(), nSamples);
} }
template<size_t N_CHANNELS> template<size_t N_CHANNELS>
inline void Fuzz<N_CHANNELS>::setFuzz(float value) { inline void Fuzz<N_CHANNELS>::setFuzz(
float value) {
bw_fuzz_set_fuzz(&coeffs, value); bw_fuzz_set_fuzz(&coeffs, value);
} }
template<size_t N_CHANNELS> template<size_t N_CHANNELS>
inline void Fuzz<N_CHANNELS>::setVolume(float value) { inline void Fuzz<N_CHANNELS>::setVolume(
float value) {
bw_fuzz_set_volume(&coeffs, value); bw_fuzz_set_volume(&coeffs, value);
} }