Source file owl_slicing_fancy.ml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
# 1 "src/owl/core/owl_slicing_fancy.ml"
open Bigarray
open Owl_types
open Owl_core_types
external owl_float32_ndarray_get_fancy
: ('a, 'b) owl_arr
-> ('a, 'b) owl_arr
-> (int64, 'c) owl_arr
-> (int64, 'c) owl_arr
-> unit
= "stub_float32_ndarray_get_fancy"
external owl_float64_ndarray_get_fancy
: ('a, 'b) owl_arr
-> ('a, 'b) owl_arr
-> (int64, 'c) owl_arr
-> (int64, 'c) owl_arr
-> unit
= "stub_float64_ndarray_get_fancy"
external owl_complex32_ndarray_get_fancy
: ('a, 'b) owl_arr
-> ('a, 'b) owl_arr
-> (int64, 'c) owl_arr
-> (int64, 'c) owl_arr
-> unit
= "stub_complex32_ndarray_get_fancy"
external owl_complex64_ndarray_get_fancy
: ('a, 'b) owl_arr
-> ('a, 'b) owl_arr
-> (int64, 'c) owl_arr
-> (int64, 'c) owl_arr
-> unit
= "stub_complex64_ndarray_get_fancy"
let _ndarray_get_fancy
: type a b c.
(a, b) kind
-> (a, b) owl_arr
-> (a, b) owl_arr
-> (int64, c) owl_arr
-> (int64, c) owl_arr
-> unit
= function
| Float32 -> owl_float32_ndarray_get_fancy
| Float64 -> owl_float64_ndarray_get_fancy
| Complex32 -> owl_complex32_ndarray_get_fancy
| Complex64 -> owl_complex64_ndarray_get_fancy
| _ -> failwith "_ndarray_get_fancy: unsupported operation"
external owl_float32_ndarray_set_fancy
: ('a, 'b) owl_arr
-> ('a, 'b) owl_arr
-> (int64, 'c) owl_arr
-> (int64, 'c) owl_arr
-> unit
= "stub_float32_ndarray_set_fancy"
external owl_float64_ndarray_set_fancy
: ('a, 'b) owl_arr
-> ('a, 'b) owl_arr
-> (int64, 'c) owl_arr
-> (int64, 'c) owl_arr
-> unit
= "stub_float64_ndarray_set_fancy"
external owl_complex32_ndarray_set_fancy
: ('a, 'b) owl_arr
-> ('a, 'b) owl_arr
-> (int64, 'c) owl_arr
-> (int64, 'c) owl_arr
-> unit
= "stub_complex32_ndarray_set_fancy"
external owl_complex64_ndarray_set_fancy
: ('a, 'b) owl_arr
-> ('a, 'b) owl_arr
-> (int64, 'c) owl_arr
-> (int64, 'c) owl_arr
-> unit
= "stub_complex64_ndarray_set_fancy"
let _ndarray_set_fancy
: type a b c.
(a, b) kind
-> (a, b) owl_arr
-> (a, b) owl_arr
-> (int64, c) owl_arr
-> (int64, c) owl_arr
-> unit
= function
| Float32 -> owl_float32_ndarray_set_fancy
| Float64 -> owl_float64_ndarray_set_fancy
| Complex32 -> owl_complex32_ndarray_set_fancy
| Complex64 -> owl_complex64_ndarray_set_fancy
| _ -> failwith "_ndarray_set_fancy: unsupported operation"
let _calc_total_list_len axis =
Array.fold_left
(fun a x ->
match x with
| L_ x -> a + Array.length x
| _ -> a)
0
axis
let encode_slice_definition axis =
let n0 = 3 * Array.length axis in
let n1 = _calc_total_list_len axis in
let slice = Genarray.create Int64 C_layout [| 3 * n0 |] in
let index = Genarray.create Int64 C_layout [| n1 |] in
let k = ref 0 in
Array.iteri
(fun i a ->
let j = 3 * i in
match a with
| L_ x ->
let l = Array.length x in
Genarray.set slice [| j |] (Int64.of_int (-1));
Genarray.set slice [| j + 1 |] (Int64.of_int !k);
Genarray.set slice [| j + 2 |] (Int64.of_int (!k + l - 1));
Array.iteri (fun o y -> Genarray.set index [| !k + o |] (Int64.of_int y)) x;
k := !k + l
| R_ x ->
Genarray.set slice [| j |] (Int64.of_int x.(0));
Genarray.set slice [| j + 1 |] (Int64.of_int x.(1));
Genarray.set slice [| j + 2 |] (Int64.of_int x.(2))
| _ -> failwith "owl_slicing_fancy:encode_slice_definition")
axis;
slice, index
let get kind axis x y =
let slice, index = encode_slice_definition axis in
_ndarray_get_fancy kind x y slice index
let set kind axis x y =
let slice, index = encode_slice_definition axis in
_ndarray_set_fancy kind x y slice index