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1 | //---------------------------------------------------------------------------// |
2 | // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com> | |
3 | // | |
4 | // Distributed under the Boost Software License, Version 1.0 | |
5 | // See accompanying file LICENSE_1_0.txt or copy at | |
6 | // http://www.boost.org/LICENSE_1_0.txt | |
7 | // | |
8 | // See http://boostorg.github.com/compute for more information. | |
9 | //---------------------------------------------------------------------------// | |
10 | ||
11 | #ifndef BOOST_COMPUTE_CONTAINER_DETAIL_SCALAR_HPP | |
12 | #define BOOST_COMPUTE_CONTAINER_DETAIL_SCALAR_HPP | |
13 | ||
14 | #include <boost/compute/buffer.hpp> | |
b32b8144 | 15 | #include <boost/compute/event.hpp> |
7c673cae FG |
16 | #include <boost/compute/detail/read_write_single_value.hpp> |
17 | ||
18 | namespace boost { | |
19 | namespace compute { | |
20 | namespace detail { | |
21 | ||
22 | // scalar<T> provides a trivial "container" that stores a | |
23 | // single value in a memory buffer on a compute device | |
24 | template<class T> | |
25 | class scalar | |
26 | { | |
27 | public: | |
28 | typedef T value_type; | |
29 | ||
30 | scalar(const context &context) | |
31 | : m_buffer(context, sizeof(T)) | |
32 | { | |
33 | } | |
34 | ||
35 | ~scalar() | |
36 | { | |
37 | } | |
38 | ||
39 | T read(command_queue &queue) const | |
40 | { | |
41 | return read_single_value<T>(m_buffer, 0, queue); | |
42 | } | |
43 | ||
b32b8144 | 44 | event write(const T &value, command_queue &queue) |
7c673cae | 45 | { |
b32b8144 | 46 | return write_single_value<T>(value, m_buffer, 0, queue); |
7c673cae FG |
47 | } |
48 | ||
49 | const buffer& get_buffer() const | |
50 | { | |
51 | return m_buffer; | |
52 | } | |
53 | ||
54 | private: | |
55 | buffer m_buffer; | |
56 | }; | |
57 | ||
58 | } // end detail namespace | |
59 | } // end compute namespace | |
60 | } // end boost namespace | |
61 | ||
62 | #endif // BOOST_COMPUTE_CONTAINER_DETAIL_SCALAR_HPP |