220 lines
8.3 KiB
C
220 lines
8.3 KiB
C
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/*
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* This file is part of the micropython-ulab project,
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*
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* https://github.com/v923z/micropython-ulab
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019-2020 Zoltán Vörös
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*/
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#ifndef _NDARRAY_
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#define _NDARRAY_
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#include "py/objarray.h"
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#include "py/binary.h"
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#include "py/objstr.h"
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#include "py/objlist.h"
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#define ULAB_MAX_DIMS 4
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#define NDARRAY_PRINT_THRESHOLD 10
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#define NDARRAY_PRINT_EDGEITEMS 3
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#if MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_FLOAT
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#define FLOAT_TYPECODE 'f'
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#elif MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_DOUBLE
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#define FLOAT_TYPECODE 'd'
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#endif
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// this typedef is lifted from objfloat.c, because mp_obj_float_t is not exposed
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typedef struct _mp_obj_float_t {
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mp_obj_base_t base;
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mp_float_t value;
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} mp_obj_float_t;
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#ifdef OPENMV
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#define mp_obj_is_bool(o) (MP_OBJ_IS_TYPE((o), &mp_type_bool))
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#define translate(x) x
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typedef struct _mp_obj_slice_t {
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mp_obj_base_t base;
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mp_obj_t start;
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mp_obj_t stop;
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mp_obj_t step;
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} mp_obj_slice_t;
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void mp_obj_slice_get(mp_obj_t self_in, mp_obj_t *, mp_obj_t *, mp_obj_t *);
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#else
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#if CIRCUITPY
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#define mp_obj_is_bool(o) (MP_OBJ_IS_TYPE((o), &mp_type_bool))
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#define mp_obj_is_int(x) (MP_OBJ_IS_INT((x)))
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#else
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#define translate(x) MP_ERROR_TEXT(x)
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#endif
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#endif
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#define SWAP(t, a, b) { t tmp = a; a = b; b = tmp; }
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#define NDARRAY_NUMERIC 0
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#define NDARRAY_BOOLEAN 1
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extern const mp_obj_type_t ulab_ndarray_type;
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enum NDARRAY_TYPE {
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NDARRAY_BOOL = '?', // this must never be assigned to the dtype!
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NDARRAY_UINT8 = 'B',
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NDARRAY_INT8 = 'b',
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NDARRAY_UINT16 = 'H',
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NDARRAY_INT16 = 'h',
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NDARRAY_FLOAT = FLOAT_TYPECODE,
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};
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typedef struct _ndarray_obj_t {
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mp_obj_base_t base;
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size_t shape[ULAB_MAX_DIMS];
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int32_t strides[ULAB_MAX_DIMS];
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size_t len;
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void *array;
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uint8_t dtype;
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uint8_t boolean;
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uint8_t ndim;
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} ndarray_obj_t;
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// this is a helper structure, so that we can return shape AND strides from a function
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typedef struct _ndarray_header_obj_t {
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size_t *shape;
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int32_t *strides;
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int8_t axis;
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} ndarray_header_obj_t;
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typedef struct _short_descriptor_t {
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size_t left_shape[ULAB_MAX_DIMS];
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size_t right_shape[ULAB_MAX_DIMS];
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size_t output_shape[ULAB_MAX_DIMS];
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int32_t left_strides[ULAB_MAX_DIMS];
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int32_t right_strides[ULAB_MAX_DIMS];
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int32_t output_strides[ULAB_MAX_DIMS];
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bool broadcastable;
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} short_descriptor_t;
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mp_obj_t ndarray_new_ndarray_iterator(mp_obj_t , size_t , mp_obj_iter_buf_t *);
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mp_float_t ndarray_get_float_value(void *, uint8_t , size_t );
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bool ndarray_object_is_nditerable(mp_obj_t );
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void fill_array_iterable(mp_float_t *, mp_obj_t );
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void ndarray_print(const mp_print_t *, mp_obj_t , mp_print_kind_t );
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mp_obj_t ndarray_set_printoptions(size_t , const mp_obj_t *, mp_map_t *);
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MP_DECLARE_CONST_FUN_OBJ_KW(ndarray_set_printoptions_obj);
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mp_obj_t ndarray_get_printoptions(void);
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MP_DECLARE_CONST_FUN_OBJ_0(ndarray_get_printoptions_obj);
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void ndarray_print_row(const mp_print_t *, mp_obj_array_t *, size_t , size_t );
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void ndarray_assign_elements(ndarray_obj_t *, mp_obj_t , uint8_t , size_t *);
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size_t *ndarray_new_coords(uint8_t );
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size_t *ndarray_contract_shape(ndarray_obj_t *, uint8_t );
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int32_t *ndarray_contract_strides(ndarray_obj_t *, uint8_t );
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ndarray_obj_t *ndarray_new_dense_ndarray(uint8_t , size_t *, uint8_t );
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ndarray_obj_t *ndarray_new_ndarray_from_tuple(mp_obj_tuple_t *, uint8_t );
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ndarray_obj_t *ndarray_new_ndarray(uint8_t , size_t *, int32_t *, uint8_t );
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ndarray_obj_t *ndarray_new_linear_array(size_t , uint8_t );
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bool ndarray_is_dense(ndarray_obj_t *);
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mp_obj_t ndarray_copy(mp_obj_t );
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#ifdef CIRCUITPY
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mp_obj_t ndarray_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *args, mp_map_t *kw_args);
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#else
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mp_obj_t ndarray_make_new(const mp_obj_type_t *, size_t , size_t , const mp_obj_t *);
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#endif
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mp_obj_t ndarray_subscr(mp_obj_t , mp_obj_t , mp_obj_t );
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mp_obj_t ndarray_getiter(mp_obj_t , mp_obj_iter_buf_t *);
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mp_obj_t ndarray_binary_op(mp_binary_op_t , mp_obj_t , mp_obj_t );
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mp_obj_t ndarray_unary_op(mp_unary_op_t , mp_obj_t );
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mp_obj_t ndarray_shape(mp_obj_t );
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MP_DECLARE_CONST_FUN_OBJ_1(ndarray_shape_obj);
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mp_obj_t ndarray_strides(mp_obj_t );
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MP_DECLARE_CONST_FUN_OBJ_1(ndarray_strides_obj);
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mp_obj_t ndarray_size(mp_obj_t );
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mp_obj_t ndarray_itemsize(mp_obj_t );
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MP_DECLARE_CONST_FUN_OBJ_1(ndarray_itemsize_obj);
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mp_obj_t ndarray_itemsize(mp_obj_t );
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mp_obj_t ndarray_flatten(size_t , const mp_obj_t *, mp_map_t *);
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mp_obj_t ndarray_reshape(mp_obj_t , mp_obj_t );
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MP_DECLARE_CONST_FUN_OBJ_2(ndarray_reshape_obj);
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mp_obj_t ndarray_transpose(mp_obj_t );
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MP_DECLARE_CONST_FUN_OBJ_1(ndarray_transpose_obj);
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mp_int_t ndarray_get_buffer(mp_obj_t obj, mp_buffer_info_t *bufinfo, mp_uint_t flags);
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//void ndarray_attributes(mp_obj_t , qstr , mp_obj_t *);
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ndarray_obj_t *ndarray_from_mp_obj(mp_obj_t );
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/*
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mp_obj_t row = mp_obj_new_list(n, NULL);
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mp_obj_list_t *row_ptr = MP_OBJ_TO_PTR(row);
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should work outside the loop, but it doesn't. Go figure!
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*/
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#define NDARRAY_INDEX_FROM_FLAT2(ndarray, stride_array, shape_strides, index, _tindex, _nindex) do {\
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size_t Q;\
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(_tindex) = (index);\
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(_nindex) = (ndarray)->offset;\
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for(size_t _x=0; _x < (ndarray)->ndim; _x++) {\
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Q = (_tindex) / (shape_strides)[_x];\
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(_tindex) -= Q * (shape_strides)[_x];\
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(_nindex) += Q * (stride_array)[_x];\
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}\
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} while(0)
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/*
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#define RUN_BINARY_LOOP(typecode, type_out, type_left, type_right, ol, or, op, m, n, len, linc, rinc) do {\
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type_left *left = (type_left *)(ol)->array->items;\
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type_right *right = (type_right *)(or)->array->items;\
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if(((op) == MP_BINARY_OP_ADD) || ((op) == MP_BINARY_OP_SUBTRACT) || ((op) == MP_BINARY_OP_MULTIPLY) || ((op) == MP_BINARY_OP_POWER)) {\
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ndarray_obj_t *out = create_new_ndarray((m), (n), (typecode));\
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type_out *(odata) = (type_out *)out->array->items;\
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if((op) == MP_BINARY_OP_ADD) { for(size_t i=0; i < (len); i++, left+=linc, right+=rinc) *odata++ = *left + *right; }\
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else if((op) == MP_BINARY_OP_MULTIPLY) { for(size_t i=0; i < (len); i++, left+=linc, right+=rinc) *odata++ = *left * *right; }\
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else if((op) == MP_BINARY_OP_POWER) { for(size_t i=0; i < (len); i++, left+=linc, right+=rinc) *odata++ = (type_out)MICROPY_FLOAT_C_FUN(pow)(*left, *right); }\
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else if((op) == MP_BINARY_OP_SUBTRACT) { for(size_t i=0; i < (len); i++, left+=linc, right+=rinc) *odata++ = *left - *right; }\
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return MP_OBJ_FROM_PTR(out);\
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} else if((op) == MP_BINARY_OP_TRUE_DIVIDE) {\
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ndarray_obj_t *out = create_new_ndarray((m), (n), NDARRAY_FLOAT);\
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mp_float_t *odata = (mp_float_t *)out->array->items;\
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for(size_t i=0; i < (len); i++, left+=linc, right+=rinc) {*odata++ = (mp_float_t)(*left)/(mp_float_t)(*right);}\
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return MP_OBJ_FROM_PTR(out);\
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} else if(((op) == MP_BINARY_OP_LESS) || ((op) == MP_BINARY_OP_LESS_EQUAL) || \
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((op) == MP_BINARY_OP_MORE) || ((op) == MP_BINARY_OP_MORE_EQUAL) || \
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((op) == MP_BINARY_OP_EQUAL) || ((op) == MP_BINARY_OP_NOT_EQUAL)) {\
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mp_obj_t out_list = mp_obj_new_list(0, NULL);\
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for(size_t i=0; i < m; i++) {\
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mp_obj_t row = mp_obj_new_list(n, NULL);\
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mp_obj_list_t *row_ptr = MP_OBJ_TO_PTR(row);\
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if((op) == MP_BINARY_OP_LESS) { for(size_t j=0; j < n; j++, left+=linc, right+=rinc) row_ptr->items[j] = *left < *right ? mp_const_true : mp_const_false; }\
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else if((op) == MP_BINARY_OP_LESS_EQUAL) { for(size_t j=0; j < n; j++, left+=linc, right+=rinc) row_ptr->items[j] = *left <= *right ? mp_const_true : mp_const_false; }\
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else if((op) == MP_BINARY_OP_MORE) { for(size_t j=0; j < n; j++, left+=linc, right+=rinc) row_ptr->items[j] = *left > *right ? mp_const_true : mp_const_false; }\
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else if((op) == MP_BINARY_OP_MORE_EQUAL) { for(size_t j=0; j < n; j++, left+=linc, right+=rinc) row_ptr->items[j] = *left >= *right ? mp_const_true : mp_const_false; }\
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else if((op) == MP_BINARY_OP_EQUAL) { for(size_t j=0; j < n; j++, left+=linc, right+=rinc) row_ptr->items[j] = *left == *right ? mp_const_true : mp_const_false; }\
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else if((op) == MP_BINARY_OP_NOT_EQUAL) { for(size_t j=0; j < n; j++, left+=linc, right+=rinc) row_ptr->items[j] = *left != *right ? mp_const_true : mp_const_false; }\
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if(m == 1) return row;\
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mp_obj_list_append(out_list, row);\
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}\
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return out_list;\
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}\
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} while(0)
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*/
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#endif
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