X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Faudiographer%2Faudiographer%2Fprocess_context.h;h=15128ab4ea54ea3298c260671d8da0978057c84b;hb=bb8cb93789b2eec65e4d82e5ceb64054673cbc4f;hp=b73f5d69d5cdf0ec51e8d53bc26311f9d3a95676;hpb=0938a42440cc82ce8d0cb064840c258c863714ab;p=ardour.git

diff --git a/libs/audiographer/audiographer/process_context.h b/libs/audiographer/audiographer/process_context.h
index b73f5d69d5..15128ab4ea 100644
--- a/libs/audiographer/audiographer/process_context.h
+++ b/libs/audiographer/audiographer/process_context.h
@@ -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)
-	: _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)
-		: _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)
-		: _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)
-		: _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
@@ -121,8 +125,9 @@ protected:
 
 /// A process context that allocates and owns it's data buffer
 template <typename T = DefaultSampleType>
-struct AllocatingProcessContext : public ProcessContext<T>
+class AllocatingProcessContext : public ProcessContext<T>
 {
+public:
 	/// Allocates uninitialized memory
 	AllocatingProcessContext (framecnt_t frames, ChannelCount channels)
 		: ProcessContext<T> (new T[frames], frames, channels) {}