191 lines
7.6 KiB
C
191 lines
7.6 KiB
C
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2021 Artyom Skrobov
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include "py/runtime.h"
|
|
#include "shared-bindings/synthio/LFO.h"
|
|
#include "shared-bindings/synthio/Note.h"
|
|
#include "shared-bindings/synthio/Synthesizer.h"
|
|
#include "shared-module/synthio/Note.h"
|
|
|
|
|
|
|
|
void common_hal_synthio_synthesizer_construct(synthio_synthesizer_obj_t *self,
|
|
uint32_t sample_rate, int channel_count, mp_obj_t waveform_obj,
|
|
mp_obj_t envelope_obj) {
|
|
|
|
synthio_synth_init(&self->synth, sample_rate, channel_count, waveform_obj, envelope_obj);
|
|
self->blocks = mp_obj_new_list(0, NULL);
|
|
}
|
|
|
|
void common_hal_synthio_synthesizer_deinit(synthio_synthesizer_obj_t *self) {
|
|
synthio_synth_deinit(&self->synth);
|
|
}
|
|
bool common_hal_synthio_synthesizer_deinited(synthio_synthesizer_obj_t *self) {
|
|
return synthio_synth_deinited(&self->synth);
|
|
}
|
|
|
|
uint32_t common_hal_synthio_synthesizer_get_sample_rate(synthio_synthesizer_obj_t *self) {
|
|
return self->synth.sample_rate;
|
|
}
|
|
uint8_t common_hal_synthio_synthesizer_get_bits_per_sample(synthio_synthesizer_obj_t *self) {
|
|
return SYNTHIO_BITS_PER_SAMPLE;
|
|
}
|
|
uint8_t common_hal_synthio_synthesizer_get_channel_count(synthio_synthesizer_obj_t *self) {
|
|
return self->synth.channel_count;
|
|
}
|
|
|
|
void synthio_synthesizer_reset_buffer(synthio_synthesizer_obj_t *self,
|
|
bool single_channel_output, uint8_t channel) {
|
|
synthio_synth_reset_buffer(&self->synth, single_channel_output, channel);
|
|
}
|
|
|
|
audioio_get_buffer_result_t synthio_synthesizer_get_buffer(synthio_synthesizer_obj_t *self,
|
|
bool single_channel_output, uint8_t channel, uint8_t **buffer, uint32_t *buffer_length) {
|
|
if (common_hal_synthio_synthesizer_deinited(self)) {
|
|
*buffer_length = 0;
|
|
return GET_BUFFER_ERROR;
|
|
}
|
|
self->synth.span.dur = SYNTHIO_MAX_DUR;
|
|
|
|
|
|
synthio_synth_synthesize(&self->synth, buffer, buffer_length, single_channel_output ? channel : 0);
|
|
|
|
// free-running LFOs
|
|
mp_obj_iter_buf_t iter_buf;
|
|
mp_obj_t iterable = mp_getiter(self->blocks, &iter_buf);
|
|
mp_obj_t item;
|
|
while ((item = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
|
|
if (!synthio_obj_is_block(item)) {
|
|
continue;
|
|
}
|
|
synthio_block_slot_t slot = { item };
|
|
(void)synthio_block_slot_get(&slot);
|
|
}
|
|
return GET_BUFFER_MORE_DATA;
|
|
}
|
|
|
|
void synthio_synthesizer_get_buffer_structure(synthio_synthesizer_obj_t *self, bool single_channel_output,
|
|
bool *single_buffer, bool *samples_signed, uint32_t *max_buffer_length, uint8_t *spacing) {
|
|
return synthio_synth_get_buffer_structure(&self->synth, single_channel_output, single_buffer, samples_signed, max_buffer_length, spacing);
|
|
}
|
|
|
|
void common_hal_synthio_synthesizer_release_all(synthio_synthesizer_obj_t *self) {
|
|
for (size_t i = 0; i < CIRCUITPY_SYNTHIO_MAX_CHANNELS; i++) {
|
|
if (self->synth.span.note_obj[i] != SYNTHIO_SILENCE) {
|
|
synthio_span_change_note(&self->synth, self->synth.span.note_obj[i], SYNTHIO_SILENCE);
|
|
}
|
|
}
|
|
}
|
|
|
|
STATIC bool is_note(mp_obj_t note_in) {
|
|
return mp_obj_is_small_int(note_in) || mp_obj_is_type(note_in, &synthio_note_type);
|
|
}
|
|
|
|
STATIC mp_obj_t validate_note(mp_obj_t note_in) {
|
|
if (mp_obj_is_small_int(note_in)) {
|
|
mp_arg_validate_int_range(mp_obj_get_int(note_in), 0, 127, MP_QSTR_note);
|
|
} else {
|
|
const mp_obj_type_t *note_type = mp_obj_get_type(note_in);
|
|
if (note_type != &synthio_note_type) {
|
|
mp_raise_TypeError_varg(translate("%q must be of type %q or %q, not %q"), MP_QSTR_note, MP_QSTR_int, MP_QSTR_Note, note_type->name);
|
|
}
|
|
}
|
|
return note_in;
|
|
}
|
|
|
|
void common_hal_synthio_synthesizer_release(synthio_synthesizer_obj_t *self, mp_obj_t to_release) {
|
|
if (is_note(to_release)) {
|
|
synthio_span_change_note(&self->synth, validate_note(to_release), SYNTHIO_SILENCE);
|
|
return;
|
|
}
|
|
|
|
mp_obj_iter_buf_t iter_buf;
|
|
mp_obj_t iterable = mp_getiter(to_release, &iter_buf);
|
|
mp_obj_t item;
|
|
while ((item = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
|
|
synthio_span_change_note(&self->synth, validate_note(item), SYNTHIO_SILENCE);
|
|
}
|
|
}
|
|
|
|
void common_hal_synthio_synthesizer_press(synthio_synthesizer_obj_t *self, mp_obj_t to_press) {
|
|
if (is_note(to_press)) {
|
|
if (!mp_obj_is_small_int(to_press)) {
|
|
synthio_note_obj_t *note = MP_OBJ_TO_PTR(to_press);
|
|
synthio_note_start(note, self->synth.sample_rate);
|
|
}
|
|
synthio_span_change_note(&self->synth, SYNTHIO_SILENCE, validate_note(to_press));
|
|
return;
|
|
}
|
|
|
|
mp_obj_iter_buf_t iter_buf;
|
|
mp_obj_t iterable = mp_getiter(to_press, &iter_buf);
|
|
mp_obj_t note_obj;
|
|
while ((note_obj = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
|
|
note_obj = validate_note(note_obj);
|
|
if (!mp_obj_is_small_int(note_obj)) {
|
|
synthio_note_obj_t *note = MP_OBJ_TO_PTR(note_obj);
|
|
synthio_note_start(note, self->synth.sample_rate);
|
|
}
|
|
synthio_span_change_note(&self->synth, SYNTHIO_SILENCE, note_obj);
|
|
}
|
|
}
|
|
|
|
void common_hal_synthio_synthesizer_retrigger(synthio_synthesizer_obj_t *self, mp_obj_t to_retrigger) {
|
|
if (mp_obj_is_type(to_retrigger, &synthio_lfo_type)) {
|
|
synthio_lfo_obj_t *lfo = MP_OBJ_TO_PTR(mp_arg_validate_type(to_retrigger, &synthio_lfo_type, MP_QSTR_retrigger));
|
|
common_hal_synthio_lfo_retrigger(lfo);
|
|
return;
|
|
}
|
|
|
|
mp_obj_iter_buf_t iter_buf;
|
|
mp_obj_t iterable = mp_getiter(to_retrigger, &iter_buf);
|
|
mp_obj_t lfo_obj;
|
|
while ((lfo_obj = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
|
|
synthio_lfo_obj_t *lfo = MP_OBJ_TO_PTR(mp_arg_validate_type(lfo_obj, &synthio_lfo_type, MP_QSTR_retrigger));
|
|
common_hal_synthio_lfo_retrigger(lfo);
|
|
}
|
|
}
|
|
|
|
mp_obj_t common_hal_synthio_synthesizer_get_pressed_notes(synthio_synthesizer_obj_t *self) {
|
|
int count = 0;
|
|
for (int chan = 0; chan < CIRCUITPY_SYNTHIO_MAX_CHANNELS; chan++) {
|
|
if (self->synth.span.note_obj[chan] != SYNTHIO_SILENCE && SYNTHIO_NOTE_IS_PLAYING(&self->synth, chan)) {
|
|
count += 1;
|
|
}
|
|
}
|
|
mp_obj_tuple_t *result = MP_OBJ_TO_PTR(mp_obj_new_tuple(count, NULL));
|
|
for (size_t chan = 0, j = 0; chan < CIRCUITPY_SYNTHIO_MAX_CHANNELS; chan++) {
|
|
if (self->synth.span.note_obj[chan] != SYNTHIO_SILENCE && SYNTHIO_NOTE_IS_PLAYING(&self->synth, chan)) {
|
|
result->items[j++] = self->synth.span.note_obj[chan];
|
|
}
|
|
}
|
|
return MP_OBJ_FROM_PTR(result);
|
|
}
|
|
|
|
mp_obj_t common_hal_synthio_synthesizer_get_blocks(synthio_synthesizer_obj_t *self) {
|
|
return self->blocks;
|
|
}
|