123 lines
3.9 KiB
C
123 lines
3.9 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2023 Jeff Epler for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <math.h>
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#include "shared-bindings/synthio/Math.h"
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#include "shared-module/synthio/Math.h"
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mp_obj_t common_hal_synthio_math_get_input_obj(synthio_math_obj_t *self, size_t i) {
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return self->inputs[i].obj;
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}
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void common_hal_synthio_math_set_input_obj(synthio_math_obj_t *self, size_t i, mp_obj_t arg, qstr argname) {
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assert(i < MP_ARRAY_SIZE(self->inputs));
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synthio_block_assign_slot(arg, &self->inputs[i], argname);
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}
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synthio_math_operation_t common_hal_synthio_math_get_operation(synthio_math_obj_t *self) {
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return self->operation;
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}
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void common_hal_synthio_math_set_operation(synthio_math_obj_t *self, synthio_math_operation_t arg) {
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self->operation = arg;
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}
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#define ZERO (MICROPY_FLOAT_CONST(0.))
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mp_float_t common_hal_synthio_math_get_value(synthio_math_obj_t *self) {
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return self->base.value;
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}
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mp_float_t common_hal_synthio_math_tick(mp_obj_t self_in) {
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synthio_math_obj_t *self = MP_OBJ_TO_PTR(self_in);
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mp_float_t a = synthio_block_slot_get(&self->inputs[0]);
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if (self->operation == OP_ABS) {
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return MICROPY_FLOAT_C_FUN(fabs)(a);
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}
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mp_float_t b = synthio_block_slot_get(&self->inputs[1]);
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mp_float_t c = synthio_block_slot_get(&self->inputs[2]);
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switch (self->operation) {
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case OP_SUM:
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return a + b + c;
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case OP_ADD_SUB:
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return a + b - c;
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case OP_PRODUCT:
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return a * b * c;
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case OP_MUL_DIV:
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if (fpclassify(c) == FP_ZERO) {
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return 0;
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}
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return a * b / c;
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case OP_SCALE_OFFSET:
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return a * b + c;
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case OP_OFFSET_SCALE:
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return (a + b) * c;
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case OP_CONSTRAINED_LERP:
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c = MIN(1, MAX(0, c));
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MP_FALLTHROUGH;
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case OP_LERP:
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return a * (1 - c) + b * c;
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case OP_DIV_ADD:
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if (fpclassify(b) == FP_ZERO) {
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return ZERO;
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}
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return a / b + c;
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case OP_ADD_DIV:
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if (fpclassify(c) == FP_ZERO) {
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return ZERO;
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}
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return (a + b) / c;
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case OP_MID:
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if (a < b) {
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if (b < c) {
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return b;
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}
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if (a < c) {
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return c;
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}
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return a;
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}
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if (a < c) {
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return a;
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}
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if (c < b) {
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return b;
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}
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return c;
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case OP_MIN:
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return MIN(a, MIN(b, c));
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case OP_MAX:
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return MAX(a, MAX(b, c));
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case OP_ABS:
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break;
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}
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return ZERO;
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}
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