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Fix the ProcessContext copy-ctor stuff for older compilers, which don't support template base class initialization without template parameters

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git-svn-id: svn://localhost/ardour2/branches/3.0@12983 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Sakari Bergen 2012-07-02 15:48:29 +00:00
parent 5b5998208f
commit d762be4f73
1 changed files with 8 additions and 4 deletions
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12
libs/audiographer/audiographer/process_context.h
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@ -15,6 +15,7 @@
namespace AudioGrapher
{
/**
* Processing context. Constness only applies to data, not flags
*/
@ -23,6 +24,9 @@ template <typename T = DefaultSampleType>
class ProcessContext
: public Throwing<>
{
// Support older compilers that don't support template base class initialization without template parameters
// This will need to be modified if if it's modified above
static const ThrowLevel throwLevel = DEFAULT_THROW_LEVEL;
BOOST_STATIC_ASSERT (boost::has_trivial_destructor<T>::value);
@ -43,25 +47,25 @@ public:
/// Normal copy constructor
ProcessContext (ProcessContext<T> const & other)
: Throwing(), _data (other._data), _frames (other._frames), _channels (other._channels), _flags (other._flags)
: Throwing<throwLevel>(), _data (other._data), _frames (other._frames), _channels (other._channels), _flags (other._flags)
{ /* No need to validate data */ }
/// "Copy constructor" with unique data, frame and channel count, but copies flags
template<typename Y>
ProcessContext (ProcessContext<Y> const & other, T * data, framecnt_t frames, ChannelCount channels)
: Throwing(), _data (data), _frames (frames), _channels (channels), _flags (other.flags())
: Throwing<throwLevel>(), _data (data), _frames (frames), _channels (channels), _flags (other.flags())
{ validate_data(); }
/// "Copy constructor" with unique data and frame count, but copies channel count and flags
template<typename Y>
ProcessContext (ProcessContext<Y> const & other, T * data, framecnt_t frames)
: Throwing(), _data (data), _frames (frames), _channels (other.channels()), _flags (other.flags())
: Throwing<throwLevel>(), _data (data), _frames (frames), _channels (other.channels()), _flags (other.flags())
{ validate_data(); }
/// "Copy constructor" with unique data, but copies frame and channel count + flags
template<typename Y>
ProcessContext (ProcessContext<Y> const & other, T * data)
: Throwing(), _data (data), _frames (other.frames()), _channels (other.channels()), _flags (other.flags())
: Throwing<throwLevel>(), _data (data), _frames (other.frames()), _channels (other.channels()), _flags (other.flags())
{ /* No need to validate data */ }
/// Make new Context out of the beginning of this context