circuitpython-ulab/code/vectorise.c

106 lines
3.2 KiB
C

/*
* This file is part of the micropython-ulab project,
*
* https://github.com/v923z/micropython-ulab
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Zoltán Vörös
*/
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include "py/runtime.h"
#include "py/binary.h"
#include "py/obj.h"
#include "py/objarray.h"
#include "vectorise.h"
#ifndef MP_PI
#define MP_PI MICROPY_FLOAT_CONST(3.14159265358979323846)
#endif
mp_obj_t vectorise_generic_vector(mp_obj_t o_in, mp_float_t (*f)(mp_float_t)) {
// Return a single value, if o_in is not iterable
if(mp_obj_is_float(o_in) || mp_obj_is_integer(o_in)) {
return mp_obj_new_float(f(mp_obj_get_float(o_in)));
}
mp_float_t x;
if(MP_OBJ_IS_TYPE(o_in, &ulab_ndarray_type)) {
ndarray_obj_t *source = MP_OBJ_TO_PTR(o_in);
ndarray_obj_t *ndarray = create_new_ndarray(source->m, source->n, NDARRAY_FLOAT);
float *dataout = (float *)ndarray->array->items;
if(source->array->typecode == NDARRAY_UINT8) {
ITERATE_VECTOR(uint8_t, source, dataout);
} else if(source->array->typecode == NDARRAY_INT8) {
ITERATE_VECTOR(int8_t, source, dataout);
} else if(source->array->typecode == NDARRAY_UINT16) {
ITERATE_VECTOR(uint16_t, source, dataout);
} else if(source->array->typecode == NDARRAY_INT16) {
ITERATE_VECTOR(int16_t, source, dataout);
} else {
ITERATE_VECTOR(float, source, dataout);
}
return MP_OBJ_FROM_PTR(ndarray);
} else if(MP_OBJ_IS_TYPE(o_in, &mp_type_tuple) || MP_OBJ_IS_TYPE(o_in, &mp_type_list) ||
MP_OBJ_IS_TYPE(o_in, &mp_type_range)) { // i.e., the input is a generic iterable
mp_obj_array_t *o = MP_OBJ_TO_PTR(o_in);
ndarray_obj_t *out = create_new_ndarray(1, o->len, NDARRAY_FLOAT);
float *dataout = (float *)out->array->items;
mp_obj_iter_buf_t iter_buf;
mp_obj_t item, iterable = mp_getiter(o_in, &iter_buf);
size_t i=0;
while ((item = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
x = mp_obj_get_float(item);
dataout[i++] = f(x);
}
return MP_OBJ_FROM_PTR(out);
}
return mp_const_none;
}
// _degrees won't compile for the unix port
/*
mp_float_t _degreesf(mp_float_t x) {
return(180*x/MP_PI);
}
MATH_FUN_1(degrees, _degrees);
// _radians won't compile for the unix port
mp_float_t _radiansf(mp_float_t x) {
return(MP_PI*x/180.0);
}
MATH_FUN_1(radians, _radians);
STATIC mp_float_t _fabsf(mp_float_t x) {
return fabsf(x);
}
MATH_FUN_1(fabs, _fabs);
*/
MATH_FUN_1(acos, acos);
MATH_FUN_1(acosh, acosh);
MATH_FUN_1(asin, asin);
MATH_FUN_1(asinh, asinh);
MATH_FUN_1(atan, atan);
MATH_FUN_1(atanh, atanh);
MATH_FUN_1(ceil, ceil);
MATH_FUN_1(cos, cos);
MATH_FUN_1(erf, erf);
MATH_FUN_1(erfc, erfc);
MATH_FUN_1(exp, exp);
MATH_FUN_1(expm1, expm1);
MATH_FUN_1(floor, floor);
MATH_FUN_1(gamma, tgamma);
MATH_FUN_1(lgamma, lgamma);
MATH_FUN_1(log, log);
MATH_FUN_1(log10, log10);
MATH_FUN_1(log2, log2);
MATH_FUN_1(sin, sin);
MATH_FUN_1(sinh, sinh);
MATH_FUN_1(sqrt, sqrt);
MATH_FUN_1(tan, tan);
MATH_FUN_1(tanh, tanh);