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
|
#ifndef AUDIOGRAPHER_TYPE_UTILS_H
#define AUDIOGRAPHER_TYPE_UTILS_H
#include "types.h"
#include <boost/static_assert.hpp>
#include <boost/type_traits.hpp>
#include <memory>
#include <algorithm>
namespace AudioGrapher
{
class TypeUtilsBase
{
protected:
template<typename T, bool b>
static void do_fill(T * buffer, nframes_t frames, const boost::integral_constant<bool, b>&)
{ std::uninitialized_fill_n (buffer, frames, T()); }
template<typename T>
static void do_fill(T * buffer, nframes_t frames, const boost::true_type&)
{ memset (buffer, frames * sizeof(T), 0); }
private:
};
template<typename T>
class TypeUtils : private TypeUtilsBase
{
BOOST_STATIC_ASSERT (boost::has_trivial_destructor<T>::value);
typedef boost::integral_constant<bool,
boost::is_floating_point<T>::value ||
boost::is_signed<T>::value> zero_fillable;
public:
inline static void zero_fill (T * buffer, nframes_t frames)
{ do_zero_fill(buffer, frames, zero_fillable()); }
inline static void copy (T* source, T* destination, nframes_t frames)
{ std::uninitialized_copy (source, &source[frames], destination); }
inline static void move (T* source, T* destination, nframes_t frames)
{
if (destination < source) {
std::copy (source, &source[frames], destination);
} else {
std::copy_backward (source, &source[frames], destination);
}
}
private:
};
} // namespace
#endif // AUDIOGRAPHER_TYPE_UTILS_H
|
