|
|
|
@@ -23,6 +23,53 @@ |
|
|
|
namespace juce
|
|
|
|
{
|
|
|
|
|
|
|
|
#ifndef DOXYGEN
|
|
|
|
/** The contents of this namespace are used to implement AudioBuffer and should
|
|
|
|
not be used elsewhere. Their interfaces (and existence) are liable to change!
|
|
|
|
*/
|
|
|
|
namespace detail
|
|
|
|
{
|
|
|
|
/** On iOS/arm7 the alignment of `double` is greater than the alignment of
|
|
|
|
`std::max_align_t`, so we can't trust max_align_t. Instead, we query
|
|
|
|
lots of primitive types and use the maximum alignment of all of them.
|
|
|
|
|
|
|
|
We're putting this stuff outside AudioBuffer itself to avoid creating
|
|
|
|
unnecessary copies for each distinct template instantiation of
|
|
|
|
AudioBuffer.
|
|
|
|
|
|
|
|
MSVC 2015 doesn't like when we write getMaxAlignment as a loop which
|
|
|
|
accumulates the max alignment (declarations not allowed in constexpr
|
|
|
|
function body) so instead we use this recursive version which
|
|
|
|
instantiates a zillion templates.
|
|
|
|
*/
|
|
|
|
|
|
|
|
template <typename> struct Type {};
|
|
|
|
|
|
|
|
constexpr size_t getMaxAlignment() noexcept { return 0; }
|
|
|
|
|
|
|
|
template <typename Head, typename... Tail>
|
|
|
|
constexpr size_t getMaxAlignment (Type<Head>, Type<Tail>... tail) noexcept
|
|
|
|
{
|
|
|
|
return jmax (alignof (Head), getMaxAlignment (tail...));
|
|
|
|
}
|
|
|
|
|
|
|
|
constexpr size_t maxAlignment = getMaxAlignment (Type<std::max_align_t>{},
|
|
|
|
Type<void*>{},
|
|
|
|
Type<float>{},
|
|
|
|
Type<double>{},
|
|
|
|
Type<long double>{},
|
|
|
|
Type<short int>{},
|
|
|
|
Type<int>{},
|
|
|
|
Type<long int>{},
|
|
|
|
Type<long long int>{},
|
|
|
|
Type<bool>{},
|
|
|
|
Type<char>{},
|
|
|
|
Type<char16_t>{},
|
|
|
|
Type<char32_t>{},
|
|
|
|
Type<wchar_t>{});
|
|
|
|
} // namespace detail
|
|
|
|
#endif
|
|
|
|
|
|
|
|
//==============================================================================
|
|
|
|
/**
|
|
|
|
A multi-channel buffer containing floating point audio samples.
|
|
|
|
@@ -1076,7 +1123,7 @@ private: |
|
|
|
void allocateData()
|
|
|
|
{
|
|
|
|
#if (! JUCE_GCC) || (__GNUC__ * 100 + __GNUC_MINOR__) >= 409
|
|
|
|
static_assert (std::alignment_of<Type>::value <= std::alignment_of<std::max_align_t>::value,
|
|
|
|
static_assert (alignof (Type) <= detail::maxAlignment,
|
|
|
|
"AudioBuffer cannot hold types with alignment requirements larger than that guaranteed by malloc");
|
|
|
|
#endif
|
|
|
|
jassert (size >= 0);
|
|
|
|
|
reuk
5 years ago