Heavy overhaul of buffer management and polyphony.

 * Working polyphony when nodes are instantiated at desired polyphony
   level (dynamic still doesn't work)

 * Use shared silent buffer for disconnected audio inputs (save memory)

 * Eliminate redundant patch compiling on delete and disconnect-all
   events that have child events

 * Fix a ton of crash bugs and other issues I've since forgotten


git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@2468 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 5 insertions, 2 deletions

diff --git a/src/engine/ConnectionImpl.hpp b/src/engine/ConnectionImpl.hpp
index bd115293..896b055b 100644
--- a/src/engine/ConnectionImpl.hpp
+++ b/src/engine/ConnectionImpl.hpp
@@ -64,6 +64,9 @@ public:
 	void process(Context& context);
 	void queue(Context& context);
 
+	void allocate_buffer(BufferFactory& bufs);
+	void recycle_buffer() { _local_buffer = NULL; }
+
 	/** Get the buffer for a particular voice.
 	 * A Connection is smart - it knows the destination port requesting the
 	 * buffer, and will return accordingly (e.g. the same buffer for every
@@ -72,14 +75,14 @@ public:
 	inline BufferFactory::Ref buffer(uint32_t voice) const {
 		if (must_mix() || must_queue()) {
 			return _local_buffer;
-		} else if ( ! _src_port->polyphonic()) {
+		} else if (_src_port->poly() == 1) {
 			return _src_port->buffer(0);
 		} else {
 			return _src_port->buffer(voice);
 		}
 	}
 
-	void set_buffer_size(BufferFactory& bufs, size_t size);
+	void update_buffer_size(Context& context, BufferFactory& bufs);
 	void prepare_poly(BufferFactory& bufs, uint32_t poly);
 	void apply_poly(Raul::Maid& maid, uint32_t poly);