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Only calculate lofi bit mask when necessary.

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dcooperdalrymple 2025-01-17 15:27:54 -06:00
parent cef94d7446
commit b796f0d1f0
1 changed files with 3 additions and 3 deletions
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6
shared-module/audiofilters/Distortion.c
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@ -268,14 +268,14 @@ audioio_get_buffer_result_t audiofilters_distortion_get_buffer(audiofilters_dist
mp_float_t post_gain = db_to_linear(synthio_block_slot_get_limited(&self->post_gain, MICROPY_FLOAT_CONST(-80.0), MICROPY_FLOAT_CONST(24.0)));
mp_float_t mix = synthio_block_slot_get_limited(&self->mix, MICROPY_FLOAT_CONST(0.0), MICROPY_FLOAT_CONST(1.0));
// LOFI mode bit mask
uint32_t word_mask = 0xFFFFFFFF ^ ((1 << (uint32_t)MICROPY_FLOAT_C_FUN(round)(drive * MICROPY_FLOAT_CONST(14.0))) - 1);
// Modify drive value depending on mode
uint32_t word_mask = 0;
if (self->mode == DISTORTION_MODE_CLIP) {
drive = MICROPY_FLOAT_CONST(1.0001) - drive;
} else if (self->mode == DISTORTION_MODE_WAVESHAPE) {
drive = MICROPY_FLOAT_CONST(2.0) * drive / (MICROPY_FLOAT_CONST(1.0001) - drive);
} else if (self->mode == DISTORTION_MODE_LOFI) {
word_mask = 0xFFFFFFFF ^ ((1 << (uint32_t)MICROPY_FLOAT_C_FUN(round)(drive * MICROPY_FLOAT_CONST(14.0))) - 1);
}
if (mix <= MICROPY_FLOAT_CONST(0.01)) { // if mix is zero pure sample only