finalized bw_delay + examples
This commit is contained in:
Stefano D'Angelo
parent
f267a015b7
commit
58a50b3ba1
1
TODO
1
TODO
@ -75,6 +75,7 @@ code:
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* c++ get coeffs/state? or public? src nIn/OutSamples case (array vs single value pre 1.0.0), delay read/write, process1? process single?
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* bw_comb: should also modulate feedback?
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* bw_comb: integer target delay values?
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* are we sure about inlining everything?
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build system:
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* make makefiles handle paths with spaces etc
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@ -4,3 +4,6 @@ NAME := bw_example_fx_delay
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SOURCE := bw_example_fx_delay.c
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include ${ROOT_DIR}/../../common/vst3/vst3.mk
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CXXFLAGS += -DRELEASE=1 -DNDEBUG -DBW_NO_DEBUG
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#CXXFLAGS += -DDEVELOPMENT=1 -DBW_DEBUG_DEEP
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@ -4,3 +4,6 @@ NAME := bw_example_fxpp_delay
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SOURCE := bw_example_fxpp_delay.cpp
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include ${ROOT_DIR}/../../common/vst3/vst3.mk
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CXXFLAGS += -DRELEASE=1 -DNDEBUG -DBW_NO_DEBUG
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#CXXFLAGS += -DDEVELOPMENT=1 -DBW_DEBUG_DEEP
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@ -33,8 +33,14 @@
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* <ul>
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* <li>Version <strong>1.0.0</strong>:
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* <ul>
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* <li>Removed <code>read()</code> and <code>write()</code> from C++
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* API.</li>
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* <li>Added initial value argument in
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* <code>bw_delay_reset_state()</code>.</li>
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* <li>Added <code>bw_delay_reset_state_multi()</code> and updated C++
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* API in this regard.</li>
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* <li>Now <code>bw_delay_reset_state()</code> returns the initial
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* output value.</li>
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* <li>Added overloaded C++ <code>reset()</code> functions taking
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* arrays as arguments.</li>
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* <li>Now using <code>size_t</code> instead of
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@ -48,6 +54,8 @@
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* <li>Added overloaded C++ <code>process()</code> function taking
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* C-style arrays as arguments.</li>
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* <li>Removed usage of reserved identifiers.</li>
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* <li>Clearly specified parameter validity ranges.</li>
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* <li>Added debugging code.</li>
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* </ul>
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* </li>
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* <li>Version <strong>0.6.0</strong>:
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@ -95,82 +103,131 @@ typedef struct bw_delay_state bw_delay_state;
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*
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* #### bw_delay_init()
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* ```>>> */
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static inline void bw_delay_init(bw_delay_coeffs *BW_RESTRICT coeffs, float max_delay);
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static inline void bw_delay_init(
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bw_delay_coeffs * BW_RESTRICT coeffs,
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float max_delay);
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/*! <<<```
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* Initializes input parameter values in `coeffs` using `max_delay` (s) as
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* the maximum delay time.
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*
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* `max_delay` must be finite and non-negative.
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*
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* #### bw_delay_set_sample_rate()
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* ```>>> */
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static inline void bw_delay_set_sample_rate(bw_delay_coeffs *BW_RESTRICT coeffs, float sample_rate);
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static inline void bw_delay_set_sample_rate(
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bw_delay_coeffs * BW_RESTRICT coeffs,
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float sample_rate);
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/*! <<<```
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* Sets the `sample_rate` (Hz) value in `coeffs`.
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*
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* #### bw_delay_mem_req()
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* ```>>> */
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static inline size_t bw_delay_mem_req(const bw_delay_coeffs *BW_RESTRICT coeffs);
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static inline size_t bw_delay_mem_req(
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const bw_delay_coeffs * BW_RESTRICT coeffs);
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/*! <<<```
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* Returns the size, in bytes, of contiguous memory to be supplied to
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* `bw_delay_mem_set()` using `coeffs`.
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*
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* #### bw_delay_mem_set()
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* ```>>> */
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static inline void bw_delay_mem_set(const bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, void *BW_RESTRICT mem);
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static inline void bw_delay_mem_set(
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const bw_delay_coeffs * BW_RESTRICT coeffs,
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bw_delay_state * BW_RESTRICT state,
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void * BW_RESTRICT mem);
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/*! <<<```
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* Associates the contiguous memory block `mem` to the given `state`.
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*
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* #### bw_delay_reset_coeffs()
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* ```>>> */
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static inline void bw_delay_reset_coeffs(bw_delay_coeffs *BW_RESTRICT coeffs);
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static inline void bw_delay_reset_coeffs(
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bw_delay_coeffs * BW_RESTRICT coeffs);
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/*! <<<```
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* Resets coefficients in `coeffs` to assume their target values.
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*
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* #### bw_delay_reset_state()
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* ```>>> */
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static inline void bw_delay_reset_state(const bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, float x_0);
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static inline float bw_delay_reset_state(
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const bw_delay_coeffs * BW_RESTRICT coeffs,
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bw_delay_state * BW_RESTRICT state,
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float x_0);
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/*! <<<```
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* Resets the given `state` to its initial values using the given `coeffs`
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* and the quiescent/initial input value `x_0`.
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* and the initial input value `x_0`.
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*
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* Returns the corresponding initial output value.
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*
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* #### bw_delay_reset_state_multi()
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* ```>>> */
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static inline void bw_delay_reset_state_multi(
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const bw_delay_coeffs * BW_RESTRICT coeffs,
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bw_delay_state * BW_RESTRICT const * BW_RESTRICT state,
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const float * x_0,
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float * y_0,
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size_t n_channels);
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/*! <<<```
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* Resets each of the `n_channels` `state`s to its initial values using the
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* given `coeffs` and the corresponding initial input value in the `x_0`
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* array.
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*
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* The corresponding initial output values are written into the `y_0` array,
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* if not `NULL`.
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*
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* #### bw_delay_read()
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* ```>>> */
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static float bw_delay_read(const bw_delay_coeffs *BW_RESTRICT coeffs, const bw_delay_state *BW_RESTRICT state, size_t di, float df);
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static float bw_delay_read(
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const bw_delay_coeffs * BW_RESTRICT coeffs,
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const bw_delay_state * BW_RESTRICT state,
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size_t di,
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float df);
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/*! <<<```
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* Returns the interpolated value read from the delay line identified by
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* `coeffs` and `state` by applying a delay of `di` + `df` samples.
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*
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* `df` must be in [`0.f`, `1.f`) and `di` + `df` must not exceed the delay
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* line length (maximum delay times the sample rate).
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* line length (`max_delay * sample_rate`).
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*
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* #### bw_delay_write()
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* ```>>> */
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static void bw_delay_write(const bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, float x);
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static void bw_delay_write(
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const bw_delay_coeffs * BW_RESTRICT coeffs,
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bw_delay_state * BW_RESTRICT state,
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float x);
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/*! <<<```
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* Pushes the new sample `x` on the delay line identified by `coeffs` and
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* `state`.
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*
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* #### bw_delay_update_coeffs_ctrl()
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* ```>>> */
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static inline void bw_delay_update_coeffs_ctrl(bw_delay_coeffs *BW_RESTRICT coeffs);
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static inline void bw_delay_update_coeffs_ctrl(
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bw_delay_coeffs * BW_RESTRICT coeffs);
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/*! <<<```
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* Triggers control-rate update of coefficients in `coeffs`.
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*
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* #### bw_delay_update_coeffs_audio()
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* ```>>> */
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static inline void bw_delay_update_coeffs_audio(bw_delay_coeffs *BW_RESTRICT coeffs);
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static inline void bw_delay_update_coeffs_audio(
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bw_delay_coeffs * BW_RESTRICT coeffs);
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/*! <<<```
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* Triggers audio-rate update of coefficients in `coeffs`.
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*
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* #### bw_delay_process1()
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* ```>>> */
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static inline float bw_delay_process1(const bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, float x);
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static inline float bw_delay_process1(
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const bw_delay_coeffs * BW_RESTRICT coeffs,
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bw_delay_state * BW_RESTRICT state,
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float x);
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/*! <<<```
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* Processes one input sample `x` using `coeffs`, while using and updating
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* `state`. Returns the corresponding output sample.
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*
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* #### bw_delay_process()
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* ```>>> */
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static inline void bw_delay_process(bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, const float *x, float *y, size_t n_samples);
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static inline void bw_delay_process(
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bw_delay_coeffs * BW_RESTRICT coeffs,
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bw_delay_state * BW_RESTRICT state,
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const float * x,
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float * y,
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size_t n_samples);
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/*! <<<```
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* Processes the first `n_samples` of the input buffer `x` and fills the
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* first `n_samples` of the output buffer `y`, while using and updating both
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@ -178,7 +235,13 @@ static inline void bw_delay_process(bw_delay_coeffs *BW_RESTRICT coeffs, bw_dela
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*
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* #### bw_delay_process_multi()
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* ```>>> */
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static inline void bw_delay_process_multi(bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT const *BW_RESTRICT state, const float * const *x, float * const *y, size_t n_channels, size_t n_samples);
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static inline void bw_delay_process_multi(
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bw_delay_coeffs * BW_RESTRICT coeffs,
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bw_delay_state * BW_RESTRICT const * BW_RESTRICT state,
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const float * const * x,
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float * const * y,
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size_t n_channels,
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size_t n_samples);
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/*! <<<```
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* Processes the first `n_samples` of the `n_channels` input buffers `x` and
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* fills the first `n_samples` of the `n_channels` output buffers `y`, while
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@ -187,17 +250,50 @@ static inline void bw_delay_process_multi(bw_delay_coeffs *BW_RESTRICT coeffs, b
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*
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* #### bw_delay_set_delay()
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* ```>>> */
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static inline void bw_delay_set_delay(bw_delay_coeffs *BW_RESTRICT coeffs, float value);
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static inline void bw_delay_set_delay(
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bw_delay_coeffs * BW_RESTRICT coeffs,
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float value);
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/*! <<<```
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* Sets the delay time `value` (s) in `coeffs`.
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*
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* Valid range: [`0.f`, `max_delay`].
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*
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* Default value: `0.f`.
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*
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* #### bw_delay_get_length()
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* ```>>> */
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static inline size_t bw_delay_get_length(const bw_delay_coeffs *BW_RESTRICT coeffs);
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static inline size_t bw_delay_get_length(
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const bw_delay_coeffs * BW_RESTRICT coeffs);
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/*! <<<```
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* Returns the length of the delay line in samples.
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* Returns the length of the delay line in samples as stored in `coeffs`.
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*
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* #### bw_delay_coeffs_is_valid()
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* ```>>> */
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static inline char bw_delay_coeffs_is_valid(
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const bw_delay_coeffs * BW_RESTRICT coeffs);
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/*! <<<```
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* Tries to determine whether `coeffs` is valid and returns non-`0` if it
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* seems to be the case and `0` if it is certainly not. False positives are
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* possible, false negatives are not.
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*
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* `coeffs` must at least point to a readable memory block of size greater
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* than or equal to that of `bw_delay_coeffs`.
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*
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* #### bw_delay_state_is_valid()
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* ```>>> */
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static inline char bw_delay_state_is_valid(
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const bw_delay_coeffs * BW_RESTRICT coeffs,
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const bw_delay_state * BW_RESTRICT state);
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/*! <<<```
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* Tries to determine whether `state` is valid and returns non-`0` if it
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* seems to be the case and `0` if it is certainly not. False positives are
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* possible, false negatives are not.
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*
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* If `coeffs` is not `NULL` extra cross-checks might be performed (`state`
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* is supposed to be associated to `coeffs`).
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*
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* `state` must at least point to a readable memory block of size greater
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* than or equal to that of `bw_delay_state`.
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* }}} */
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#ifdef __cplusplus
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@ -216,67 +312,107 @@ static inline size_t bw_delay_get_length(const bw_delay_coeffs *BW_RESTRICT coef
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extern "C" {
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#endif
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struct bw_delay_coeffs {
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// Coefficients
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float fs;
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size_t len;
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#ifdef BW_DEBUG_DEEP
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enum bw_delay_coeffs_state {
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bw_delay_coeffs_state_invalid,
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bw_delay_coeffs_state_init,
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bw_delay_coeffs_state_set_sample_rate,
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bw_delay_coeffs_state_reset_coeffs
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};
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#endif
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size_t di;
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float df;
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struct bw_delay_coeffs {
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#ifdef BW_DEBUG_DEEP
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uint32_t hash;
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enum bw_delay_coeffs_state state;
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uint32_t reset_id;
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#endif
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// Coefficients
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float fs;
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size_t len;
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size_t di;
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float df;
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// Parameters
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float max_delay;
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float delay;
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char delay_changed;
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float max_delay;
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float delay;
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char delay_changed;
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};
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struct bw_delay_state {
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float *BW_RESTRICT buf;
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size_t idx;
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#ifdef BW_DEBUG_DEEP
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uint32_t hash;
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uint32_t coeffs_reset_id;
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#endif
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// States
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float * BW_RESTRICT buf;
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size_t idx;
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};
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static inline void bw_delay_init(bw_delay_coeffs *BW_RESTRICT coeffs, float max_delay) {
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static inline void bw_delay_init(
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bw_delay_coeffs * BW_RESTRICT coeffs,
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float max_delay) {
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BW_ASSERT(coeffs != NULL);
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BW_ASSERT(bw_is_finite(max_delay));
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BW_ASSERT(max_delay >= 0.f);
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coeffs->max_delay = max_delay;
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coeffs->delay = 0.f;
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#ifdef BW_DEBUG_DEEP
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coeffs->hash = bw_hash_sdbm("bw_delay_coeffs");
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coeffs->state = bw_delay_coeffs_state_init;
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coeffs->reset_id = coeffs->hash + 1;
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#endif
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BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
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BW_ASSERT_DEEP(coeffs->state == bw_delay_coeffs_state_init);
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}
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static inline void bw_delay_set_sample_rate(bw_delay_coeffs *BW_RESTRICT coeffs, float sample_rate) {
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static inline void bw_delay_set_sample_rate(
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bw_delay_coeffs * BW_RESTRICT coeffs,
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float sample_rate) {
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BW_ASSERT(coeffs != NULL);
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BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
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BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_init);
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BW_ASSERT(bw_is_finite(sample_rate) && sample_rate > 0.f);
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coeffs->fs = sample_rate;
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coeffs->len = (size_t)bw_ceilf(coeffs->fs * coeffs->max_delay) + 1;
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#ifdef BW_DEBUG_DEEP
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coeffs->state = bw_delay_coeffs_state_set_sample_rate;
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#endif
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BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
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BW_ASSERT_DEEP(coeffs->state == bw_delay_coeffs_state_set_sample_rate);
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}
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static inline size_t bw_delay_mem_req(const bw_delay_coeffs *BW_RESTRICT coeffs) {
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static inline size_t bw_delay_mem_req(
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const bw_delay_coeffs * BW_RESTRICT coeffs) {
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BW_ASSERT(coeffs != NULL);
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BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
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BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_set_sample_rate);
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return coeffs->len * sizeof(float);
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}
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static inline void bw_delay_mem_set(const bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, void *BW_RESTRICT mem) {
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static inline void bw_delay_mem_set(
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const bw_delay_coeffs * BW_RESTRICT coeffs,
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bw_delay_state * BW_RESTRICT state,
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void * BW_RESTRICT mem) {
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BW_ASSERT(coeffs != NULL);
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BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
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BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_set_sample_rate);
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BW_ASSERT(state != NULL);
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BW_ASSERT(mem != NULL);
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(void)coeffs;
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state->buf = (float *)mem;
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}
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static inline void bw_delay_reset_coeffs(bw_delay_coeffs *BW_RESTRICT coeffs) {
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coeffs->delay_changed = 1;
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bw_delay_update_coeffs_ctrl(coeffs);
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}
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static inline void bw_delay_reset_state(const bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, float x_0) {
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bw_buf_fill(x_0, state->buf, coeffs->len);
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state->idx = 0;
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}
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static float bw_delay_read(const bw_delay_coeffs *BW_RESTRICT coeffs, const bw_delay_state *BW_RESTRICT state, size_t di, float df) {
|
||||
const size_t n = (state->idx + (state->idx >= di ? 0 : coeffs->len)) - di;
|
||||
const size_t p = (n ? n : coeffs->len) - 1;
|
||||
return state->buf[n] + df * (state->buf[p] - state->buf[n]);
|
||||
}
|
||||
|
||||
static void bw_delay_write(const bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, float x) {
|
||||
state->idx++;
|
||||
state->idx = state->idx == coeffs->len ? 0 : state->idx;
|
||||
state->buf[state->idx] = x;
|
||||
}
|
||||
|
||||
static inline void bw_delay_update_coeffs_ctrl(bw_delay_coeffs *BW_RESTRICT coeffs) {
|
||||
static inline void bw_delay_do_update_coeffs_ctrl(bw_delay_coeffs *BW_RESTRICT coeffs) {
|
||||
if (coeffs->delay_changed) {
|
||||
float i;
|
||||
bw_intfracf(coeffs->fs * coeffs->delay, &i, &coeffs->df);
|
||||
@ -285,39 +421,297 @@ static inline void bw_delay_update_coeffs_ctrl(bw_delay_coeffs *BW_RESTRICT coef
|
||||
}
|
||||
}
|
||||
|
||||
static inline void bw_delay_update_coeffs_audio(bw_delay_coeffs *BW_RESTRICT coeffs) {
|
||||
static inline void bw_delay_reset_coeffs(
|
||||
bw_delay_coeffs * BW_RESTRICT coeffs) {
|
||||
BW_ASSERT(coeffs != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_set_sample_rate);
|
||||
|
||||
coeffs->delay_changed = 1;
|
||||
bw_delay_do_update_coeffs_ctrl(coeffs);
|
||||
|
||||
#ifdef BW_DEBUG_DEEP
|
||||
coeffs->state = bw_delay_coeffs_state_reset_coeffs;
|
||||
coeffs->reset_id++;
|
||||
#endif
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state == bw_delay_coeffs_state_reset_coeffs);
|
||||
}
|
||||
|
||||
static inline float bw_delay_reset_state(
|
||||
const bw_delay_coeffs * BW_RESTRICT coeffs,
|
||||
bw_delay_state * BW_RESTRICT state,
|
||||
float x_0) {
|
||||
BW_ASSERT(coeffs != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
BW_ASSERT(state != NULL);
|
||||
BW_ASSERT(bw_is_finite(x_0));
|
||||
|
||||
bw_buf_fill(x_0, state->buf, coeffs->len);
|
||||
state->idx = 0;
|
||||
const float y = x_0;
|
||||
|
||||
#ifdef BW_DEBUG_DEEP
|
||||
state->hash = bw_hash_sdbm("bw_delay_state");
|
||||
state->coeffs_reset_id = coeffs->reset_id;
|
||||
#endif
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
BW_ASSERT_DEEP(bw_delay_state_is_valid(coeffs, state));
|
||||
BW_ASSERT(bw_is_finite(y));
|
||||
|
||||
return y;
|
||||
}
|
||||
|
||||
static inline void bw_delay_reset_state_multi(
|
||||
const bw_delay_coeffs * BW_RESTRICT coeffs,
|
||||
bw_delay_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_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_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_delay_reset_state(coeffs, state[i], x_0[i]);
|
||||
else
|
||||
for (size_t i = 0; i < n_channels; i++)
|
||||
bw_delay_reset_state(coeffs, state[i], x_0[i]);
|
||||
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
BW_ASSERT_DEEP(y_0 != NULL ? bw_has_only_finite(y_0, n_channels) : 1);
|
||||
}
|
||||
|
||||
static float bw_delay_read(
|
||||
const bw_delay_coeffs * BW_RESTRICT coeffs,
|
||||
const bw_delay_state * BW_RESTRICT state,
|
||||
size_t di,
|
||||
float df) {
|
||||
BW_ASSERT(coeffs != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
BW_ASSERT(state != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_state_is_valid(coeffs, state));
|
||||
BW_ASSERT(bw_is_finite(df));
|
||||
BW_ASSERT(df >= 0.f && df < 1.f);
|
||||
BW_ASSERT(di + df <= coeffs->len);
|
||||
|
||||
const size_t n = (state->idx + (state->idx >= di ? 0 : coeffs->len)) - di;
|
||||
const size_t p = (n ? n : coeffs->len) - 1;
|
||||
const float y = state->buf[n] + df * (state->buf[p] - state->buf[n]);
|
||||
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
BW_ASSERT_DEEP(bw_delay_state_is_valid(coeffs, state));
|
||||
BW_ASSERT(bw_is_finite(y));
|
||||
|
||||
return y;
|
||||
}
|
||||
|
||||
static void bw_delay_write(
|
||||
const bw_delay_coeffs * BW_RESTRICT coeffs,
|
||||
bw_delay_state * BW_RESTRICT state,
|
||||
float x) {
|
||||
BW_ASSERT(coeffs != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
BW_ASSERT(state != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_state_is_valid(coeffs, state));
|
||||
BW_ASSERT(bw_is_finite(x));
|
||||
|
||||
state->idx++;
|
||||
state->idx = state->idx == coeffs->len ? 0 : state->idx;
|
||||
state->buf[state->idx] = x;
|
||||
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
BW_ASSERT_DEEP(bw_delay_state_is_valid(coeffs, state));
|
||||
}
|
||||
|
||||
static inline void bw_delay_update_coeffs_ctrl(
|
||||
bw_delay_coeffs * BW_RESTRICT coeffs) {
|
||||
BW_ASSERT(coeffs != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
|
||||
bw_delay_do_update_coeffs_ctrl(coeffs);
|
||||
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
}
|
||||
|
||||
static inline void bw_delay_update_coeffs_audio(
|
||||
bw_delay_coeffs * BW_RESTRICT coeffs) {
|
||||
BW_ASSERT(coeffs != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
|
||||
(void)coeffs;
|
||||
}
|
||||
|
||||
static inline float bw_delay_process1(const bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, float x) {
|
||||
static inline float bw_delay_process1(
|
||||
const bw_delay_coeffs * BW_RESTRICT coeffs,
|
||||
bw_delay_state * BW_RESTRICT state,
|
||||
float x) {
|
||||
BW_ASSERT(coeffs != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
BW_ASSERT(state != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_state_is_valid(coeffs, state));
|
||||
BW_ASSERT(bw_is_finite(x));
|
||||
|
||||
bw_delay_write(coeffs, state, x);
|
||||
return bw_delay_read(coeffs, state, coeffs->di, coeffs->df);
|
||||
const float y = bw_delay_read(coeffs, state, coeffs->di, coeffs->df);
|
||||
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
BW_ASSERT_DEEP(bw_delay_state_is_valid(coeffs, state));
|
||||
BW_ASSERT(bw_is_finite(y));
|
||||
|
||||
return y;
|
||||
}
|
||||
|
||||
static inline void bw_delay_process(bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_state *BW_RESTRICT state, const float *x, float *y, size_t n_samples) {
|
||||
static inline void bw_delay_process(
|
||||
bw_delay_coeffs * BW_RESTRICT coeffs,
|
||||
bw_delay_state * BW_RESTRICT state,
|
||||
const float * x,
|
||||
float * y,
|
||||
size_t n_samples) {
|
||||
BW_ASSERT(coeffs != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
BW_ASSERT(state != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_state_is_valid(coeffs, state));
|
||||
BW_ASSERT(x != NULL);
|
||||
BW_ASSERT_DEEP(bw_has_only_finite(x, n_samples));
|
||||
BW_ASSERT(y != NULL);
|
||||
|
||||
bw_delay_update_coeffs_ctrl(coeffs);
|
||||
for (size_t i = 0; i < n_samples; i++)
|
||||
y[i] = bw_delay_process1(coeffs, state, x[i]);
|
||||
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
BW_ASSERT_DEEP(bw_delay_state_is_valid(coeffs, state));
|
||||
BW_ASSERT_DEEP(bw_has_only_finite(y, n_samples));
|
||||
}
|
||||
|
||||
static inline void bw_delay_process_multi(bw_delay_coeffs *BW_RESTRICT coeffs, bw_delay_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_delay_process_multi(
|
||||
bw_delay_coeffs * BW_RESTRICT coeffs,
|
||||
bw_delay_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_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
BW_ASSERT(state != NULL);
|
||||
BW_ASSERT(x != NULL);
|
||||
BW_ASSERT(y != NULL);
|
||||
|
||||
bw_delay_update_coeffs_ctrl(coeffs);
|
||||
for (size_t i = 0; i < n_samples; i++)
|
||||
for (size_t j = 0; j < n_channels; j++)
|
||||
y[j][i] = bw_delay_process1(coeffs, state[j], x[j][i]);
|
||||
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_reset_coeffs);
|
||||
}
|
||||
|
||||
static inline void bw_delay_set_delay(bw_delay_coeffs *BW_RESTRICT coeffs, float value) {
|
||||
static inline void bw_delay_set_delay(
|
||||
bw_delay_coeffs * BW_RESTRICT coeffs,
|
||||
float value) {
|
||||
BW_ASSERT(coeffs != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_init);
|
||||
BW_ASSERT(bw_is_finite(value));
|
||||
|
||||
if (value != coeffs->delay) {
|
||||
coeffs->delay = value;
|
||||
coeffs->delay_changed = 1;
|
||||
}
|
||||
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_init);
|
||||
}
|
||||
|
||||
static inline size_t bw_delay_get_length(const bw_delay_coeffs *BW_RESTRICT coeffs) {
|
||||
static inline size_t bw_delay_get_length(
|
||||
const bw_delay_coeffs * BW_RESTRICT coeffs) {
|
||||
BW_ASSERT(coeffs != NULL);
|
||||
BW_ASSERT_DEEP(bw_delay_coeffs_is_valid(coeffs));
|
||||
BW_ASSERT_DEEP(coeffs->state >= bw_delay_coeffs_state_set_sample_rate);
|
||||
|
||||
return coeffs->len;
|
||||
}
|
||||
|
||||
static inline char bw_delay_coeffs_is_valid(
|
||||
const bw_delay_coeffs * BW_RESTRICT coeffs) {
|
||||
BW_ASSERT(coeffs != NULL);
|
||||
|
||||
#ifdef BW_DEBUG_DEEP
|
||||
if (coeffs->hash != bw_hash_sdbm("bw_delay_coeffs"))
|
||||
return 0;
|
||||
if (coeffs->state < bw_delay_coeffs_state_init || coeffs->state > bw_delay_coeffs_state_reset_coeffs)
|
||||
return 0;
|
||||
#endif
|
||||
|
||||
if (!bw_is_finite(coeffs->max_delay) || coeffs->max_delay <= 0.f)
|
||||
return 0;
|
||||
if (!bw_is_finite(coeffs->delay) || coeffs->delay < 0.f || coeffs->delay > coeffs->max_delay)
|
||||
return 0;
|
||||
|
||||
#ifdef BW_DEBUG_DEEP
|
||||
if (coeffs->state >= bw_delay_coeffs_state_set_sample_rate) {
|
||||
if (!bw_is_finite(coeffs->fs) || coeffs->fs <= 0.f)
|
||||
return 0;
|
||||
if (coeffs->len == 0)
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (coeffs->state >= bw_delay_coeffs_state_reset_coeffs) {
|
||||
if (!bw_is_finite(coeffs->df) || coeffs->df < 0.f || coeffs->df >= 1.f)
|
||||
return 0;
|
||||
if (coeffs->di + coeffs->df > coeffs->len)
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static inline char bw_delay_state_is_valid(
|
||||
const bw_delay_coeffs * BW_RESTRICT coeffs,
|
||||
const bw_delay_state * BW_RESTRICT state) {
|
||||
BW_ASSERT(state != NULL);
|
||||
|
||||
#ifdef BW_DEBUG_DEEP
|
||||
if (state->hash != bw_hash_sdbm("bw_delay_state"))
|
||||
return 0;
|
||||
|
||||
if (coeffs != NULL && coeffs->reset_id != state->coeffs_reset_id)
|
||||
return 0;
|
||||
#endif
|
||||
|
||||
(void)coeffs;
|
||||
|
||||
if (state->buf == NULL)
|
||||
return 0;
|
||||
|
||||
#ifdef BW_DEBUG_DEEP
|
||||
if (coeffs != NULL && coeffs->state >= bw_delay_coeffs_state_set_sample_rate && state->idx >= coeffs->len)
|
||||
return 0;
|
||||
#endif
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
|
||||
@ -333,27 +727,43 @@ namespace Brickworks {
|
||||
template<size_t N_CHANNELS>
|
||||
class Delay {
|
||||
public:
|
||||
Delay(float maxDelay = 1.f);
|
||||
Delay(
|
||||
float maxDelay = 1.f);
|
||||
|
||||
~Delay();
|
||||
|
||||
void setSampleRate(float sampleRate);
|
||||
void reset(float x_0 = 0.f);
|
||||
void reset(const float *BW_RESTRICT x_0);
|
||||
void reset(const std::array<float, N_CHANNELS> x_0);
|
||||
void process(
|
||||
const float * const *x,
|
||||
float * const *y,
|
||||
size_t nSamples);
|
||||
void process(
|
||||
const std::array<const float *, N_CHANNELS> x,
|
||||
const std::array<float *, N_CHANNELS> y,
|
||||
size_t nSamples);
|
||||
|
||||
float read(size_t channel, size_t di, float df);
|
||||
void write(size_t channel, float x);
|
||||
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 setDelay(
|
||||
float value);
|
||||
|
||||
void setDelay(float value);
|
||||
|
||||
size_t getLength();
|
||||
/*! <<<...
|
||||
* }
|
||||
@ -366,10 +776,10 @@ public:
|
||||
* change at any time in future versions. Please, do not use it directly. */
|
||||
|
||||
private:
|
||||
bw_delay_coeffs coeffs;
|
||||
bw_delay_state states[N_CHANNELS];
|
||||
bw_delay_state *BW_RESTRICT statesP[N_CHANNELS];
|
||||
void *BW_RESTRICT mem;
|
||||
bw_delay_coeffs coeffs;
|
||||
bw_delay_state states[N_CHANNELS];
|
||||
bw_delay_state * BW_RESTRICT statesP[N_CHANNELS];
|
||||
void * BW_RESTRICT mem;
|
||||
};
|
||||
|
||||
template<size_t N_CHANNELS>
|
||||
@ -387,7 +797,8 @@ inline Delay<N_CHANNELS>::~Delay() {
|
||||
}
|
||||
|
||||
template<size_t N_CHANNELS>
|
||||
inline void Delay<N_CHANNELS>::setSampleRate(float sampleRate) {
|
||||
inline void Delay<N_CHANNELS>::setSampleRate(
|
||||
float sampleRate) {
|
||||
bw_delay_set_sample_rate(&coeffs, sampleRate);
|
||||
size_t req = bw_delay_mem_req(&coeffs);
|
||||
if (mem != nullptr)
|
||||
@ -399,52 +810,59 @@ inline void Delay<N_CHANNELS>::setSampleRate(float sampleRate) {
|
||||
}
|
||||
|
||||
template<size_t N_CHANNELS>
|
||||
inline void Delay<N_CHANNELS>::reset(float x_0) {
|
||||
inline void Delay<N_CHANNELS>::reset(
|
||||
float x0,
|
||||
float * BW_RESTRICT y0) {
|
||||
bw_delay_reset_coeffs(&coeffs);
|
||||
for (size_t i = 0; i < N_CHANNELS; i++)
|
||||
bw_delay_reset_state(&coeffs, states + i, x_0);
|
||||
if (y0 != nullptr)
|
||||
for (size_t i = 0; i < N_CHANNELS; i++)
|
||||
y0[i] = bw_delay_reset_state(&coeffs, states + i, x0);
|
||||
else
|
||||
for (size_t i = 0; i < N_CHANNELS; i++)
|
||||
bw_delay_reset_state(&coeffs, states + i, x0);
|
||||
}
|
||||
|
||||
template<size_t N_CHANNELS>
|
||||
inline void Delay<N_CHANNELS>::reset(const float *BW_RESTRICT x_0) {
|
||||
bw_delay_reset_coeffs(&coeffs);
|
||||
for (size_t i = 0; i < N_CHANNELS; i++)
|
||||
bw_delay_reset_state(&coeffs, states + i, x_0[i]);
|
||||
inline void Delay<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 Delay<N_CHANNELS>::reset(const std::array<float, N_CHANNELS> x_0) {
|
||||
reset(x_0.data());
|
||||
inline void Delay<N_CHANNELS>::reset(
|
||||
const float * x0,
|
||||
float * y0) {
|
||||
bw_delay_reset_coeffs(&coeffs);
|
||||
bw_delay_reset_state_multi(&coeffs, statesP, x0, y0, N_CHANNELS);
|
||||
}
|
||||
|
||||
template<size_t N_CHANNELS>
|
||||
inline void Delay<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>
|
||||
inline void Delay<N_CHANNELS>::process(
|
||||
const float * const *x,
|
||||
float * const *y,
|
||||
size_t nSamples) {
|
||||
const float * const * x,
|
||||
float * const * y,
|
||||
size_t nSamples) {
|
||||
bw_delay_process_multi(&coeffs, statesP, x, y, N_CHANNELS, nSamples);
|
||||
}
|
||||
|
||||
template<size_t N_CHANNELS>
|
||||
inline void Delay<N_CHANNELS>::process(
|
||||
const std::array<const float *, N_CHANNELS> x,
|
||||
const std::array<float *, N_CHANNELS> y,
|
||||
size_t nSamples) {
|
||||
std::array<const float *, N_CHANNELS> x,
|
||||
std::array<float *, N_CHANNELS> y,
|
||||
size_t nSamples) {
|
||||
process(x.data(), y.data(), nSamples);
|
||||
}
|
||||
|
||||
template<size_t N_CHANNELS>
|
||||
inline float Delay<N_CHANNELS>::read(size_t channel, size_t di, float df) {
|
||||
return bw_delay_read(&coeffs, states + channel, di, df);
|
||||
}
|
||||
|
||||
template<size_t N_CHANNELS>
|
||||
inline void Delay<N_CHANNELS>::write(size_t channel, float x) {
|
||||
bw_delay_write(&coeffs, states + channel, x);
|
||||
}
|
||||
|
||||
template<size_t N_CHANNELS>
|
||||
inline void Delay<N_CHANNELS>::setDelay(float value) {
|
||||
inline void Delay<N_CHANNELS>::setDelay(
|
||||
float value) {
|
||||
bw_delay_set_delay(&coeffs, value);
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user