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
|
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __FN_MULTI_FUNCTION_BUILDER_HH__
#define __FN_MULTI_FUNCTION_BUILDER_HH__
/** \file
* \ingroup fn
*
* This file contains several utilities to create multi-functions with less redundant code.
*/
#include <functional>
#include "FN_multi_function.hh"
namespace blender {
namespace fn {
/**
* Generates a multi-function with the following parameters:
* 1. single input (SI) of type In1
* 2. single output (SO) of type Out1
*
* This example creates a function that adds 10 to the incoming values:
* CustomFunction_SI_SO<int, int> fn("add 10", [](int value) { return value + 10; });
*/
template<typename In1, typename Out1> class CustomFunction_SI_SO : public MultiFunction {
private:
using FunctionT = std::function<void(IndexMask, VSpan<In1>, MutableSpan<Out1>)>;
FunctionT m_function;
public:
CustomFunction_SI_SO(StringRef name, FunctionT function) : m_function(std::move(function))
{
MFSignatureBuilder signature = this->get_builder(name);
signature.single_input<In1>("In1");
signature.single_output<Out1>("Out1");
}
template<typename ElementFuncT>
CustomFunction_SI_SO(StringRef name, ElementFuncT element_fn)
: CustomFunction_SI_SO(name, CustomFunction_SI_SO::create_function(element_fn))
{
}
template<typename ElementFuncT> static FunctionT create_function(ElementFuncT element_fn)
{
return [=](IndexMask mask, VSpan<In1> in1, MutableSpan<Out1> out1) {
mask.foreach_index([&](uint i) { new ((void *)&out1[i]) Out1(element_fn(in1[i])); });
};
}
void call(IndexMask mask, MFParams params, MFContext UNUSED(context)) const override
{
VSpan<In1> in1 = params.readonly_single_input<In1>(0);
MutableSpan<Out1> out1 = params.uninitialized_single_output<Out1>(1);
m_function(mask, in1, out1);
}
};
/**
* Generates a multi-function with the following parameters:
* 1. single input (SI) of type In1
* 2. single input (SI) of type In2
* 3. single output (SO) of type Out1
*/
template<typename In1, typename In2, typename Out1>
class CustomFunction_SI_SI_SO : public MultiFunction {
private:
using FunctionT = std::function<void(IndexMask, VSpan<In1>, VSpan<In2>, MutableSpan<Out1>)>;
FunctionT m_function;
public:
CustomFunction_SI_SI_SO(StringRef name, FunctionT function) : m_function(std::move(function))
{
MFSignatureBuilder signature = this->get_builder(name);
signature.single_input<In1>("In1");
signature.single_input<In2>("In2");
signature.single_output<Out1>("Out1");
}
template<typename ElementFuncT>
CustomFunction_SI_SI_SO(StringRef name, ElementFuncT element_fn)
: CustomFunction_SI_SI_SO(name, CustomFunction_SI_SI_SO::create_function(element_fn))
{
}
template<typename ElementFuncT> static FunctionT create_function(ElementFuncT element_fn)
{
return [=](IndexMask mask, VSpan<In1> in1, VSpan<In2> in2, MutableSpan<Out1> out1) {
mask.foreach_index([&](uint i) { new ((void *)&out1[i]) Out1(element_fn(in1[i], in2[i])); });
};
}
void call(IndexMask mask, MFParams params, MFContext UNUSED(context)) const override
{
VSpan<In1> in1 = params.readonly_single_input<In1>(0);
VSpan<In2> in2 = params.readonly_single_input<In1>(1);
MutableSpan<Out1> out1 = params.uninitialized_single_output<Out1>(2);
m_function(mask, in1, in2, out1);
}
};
/**
* Generates a multi-function with the following parameters:
* 1. single mutable (SM) of type Mut1
*/
template<typename Mut1> class CustomFunction_SM : public MultiFunction {
private:
using FunctionT = std::function<void(IndexMask, MutableSpan<Mut1>)>;
FunctionT m_function;
public:
CustomFunction_SM(StringRef name, FunctionT function) : m_function(std::move(function))
{
MFSignatureBuilder signature = this->get_builder(name);
signature.single_mutable<Mut1>("Mut1");
}
template<typename ElementFuncT>
CustomFunction_SM(StringRef name, ElementFuncT element_fn)
: CustomFunction_SM(name, CustomFunction_SM::create_function(element_fn))
{
}
template<typename ElementFuncT> static FunctionT create_function(ElementFuncT element_fn)
{
return [=](IndexMask mask, MutableSpan<Mut1> mut1) {
mask.foreach_index([&](uint i) { element_fn(mut1[i]); });
};
}
void call(IndexMask mask, MFParams params, MFContext UNUSED(context)) const override
{
MutableSpan<Mut1> mut1 = params.single_mutable<Mut1>(0);
m_function(mask, mut1);
}
};
} // namespace fn
} // namespace blender
#endif /* __FN_MULTI_FUNCTION_BUILDER_HH__ */
|
