SharedPtr-ify engine side store.

Fix reattaching to engine.
Fix connection paths.
Remove last dependencies on client (model) library from Serialiser.
Fix Raul::PathTable::find_descendants_end.


git-svn-id: http://svn.drobilla.net/lad/ingen@847 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 165 insertions, 0 deletions

diff --git a/src/libs/engine/PatchImpl.hpp b/src/libs/engine/PatchImpl.hpp
new file mode 100644
index 00000000..94a9ebf3
--- /dev/null
+++ b/src/libs/engine/PatchImpl.hpp
@@ -0,0 +1,165 @@
+/* This file is part of Ingen.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ * 
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef PATCHIMPL_H
+#define PATCHIMPL_H
+
+#include <cstdlib>
+#include <string>
+#include <raul/List.hpp>
+#include <raul/SharedPtr.hpp>
+#include "interface/DataType.hpp"
+#include "interface/Patch.hpp"
+#include "NodeBase.hpp"
+#include "PluginImpl.hpp"
+#include "CompiledPatch.hpp"
+
+using std::string;
+
+template <typename T> class Array;
+using Raul::List;
+
+namespace Ingen {
+
+namespace Shared { class Connection; }
+
+class ConnectionImpl;
+class Engine;
+class CompiledPatch;
+
+
+/** A group of nodes in a graph, possibly polyphonic.
+ *
+ * Note that this is also a Node, just one which contains Nodes.
+ * Therefore infinite subpatching is possible, of polyphonic
+ * patches of polyphonic nodes etc. etc.
+ *
+ * \ingroup engine
+ */
+class PatchImpl : public NodeBase, public Ingen::Shared::Patch
+{
+public:
+	PatchImpl(Engine&   engine,
+	      const string& name,
+	      uint32_t      poly,
+	      PatchImpl*    parent,
+	      SampleRate    srate,
+	      size_t        buffer_size,
+	      uint32_t      local_poly);
+
+	virtual ~PatchImpl();
+
+	void activate();
+	void deactivate();
+
+	void process(ProcessContext& context);
+	
+	void set_buffer_size(size_t size);
+	
+	/** Prepare for a new (internal) polyphony value.
+	 *
+	 * Preprocessor thread, poly is actually applied by apply_internal_poly.
+	 * \return true on success.
+	 */
+	bool prepare_internal_poly(uint32_t poly);
+	
+	/** Apply a new (internal) polyphony value.
+	 *
+	 * Audio thread.
+	 *
+	 * \param poly Must be < the most recent value passed to prepare_internal_poly.
+	 * \param maid Any objects no longer needed will be pushed to this
+	 */
+	bool apply_internal_poly(Raul::Maid& maid, uint32_t poly);
+	
+	// Patch specific stuff not inherited from Node
+	
+	typedef List<NodeImpl*>                       Nodes;
+	
+	void         add_node(Nodes::Node* tn);
+	Nodes::Node* remove_node(const string& name);
+
+	Nodes&       nodes()       { return _nodes; }
+	Connections& connections() { return _connections; }
+	
+	const Nodes&       nodes()       const { return _nodes; }
+	const Connections& connections() const { return _connections; }
+	
+	uint32_t num_ports() const;
+	
+	PortImpl* create_port(const string& name, DataType type, size_t buffer_size, bool is_output);
+	void add_input(List<PortImpl*>::Node* port)  { _input_ports.push_back(port); } ///< Preprocesser thread
+	void add_output(List<PortImpl*>::Node* port) { _output_ports.push_back(port); } ///< Preprocessor thread
+	List<PortImpl*>::Node* remove_port(const string& name);
+	
+	void               add_connection(Connections::Node* c) { _connections.push_back(c); }
+	Connections::Node* remove_connection(const PortImpl* src_port, const PortImpl* dst_port);
+	
+	CompiledPatch* compiled_patch()                  { return _compiled_patch; }
+	void           compiled_patch(CompiledPatch* cp) { _compiled_patch = cp; }
+	
+	Raul::Array<PortImpl*>* external_ports()                           { return _ports; }
+	void                    external_ports(Raul::Array<PortImpl*>* pa) { _ports = pa; }
+
+	CompiledPatch*          compile() const;
+	Raul::Array<PortImpl*>* build_ports_array() const;
+	
+	/** Whether to run this patch's DSP bits in the audio thread */
+	bool enabled() const { return _process; }
+	void enable() { _process = true; }
+	void disable();
+
+	uint32_t internal_polyphony() const { return _internal_poly; }
+
+private:
+	inline void compile_recursive(NodeImpl* n, CompiledPatch* output) const;
+	void process_parallel(ProcessContext& context);
+	void process_single(ProcessContext& context);
+
+	Engine&         _engine;
+	uint32_t        _internal_poly;
+	CompiledPatch*  _compiled_patch; ///< Accessed in audio thread only
+	Connections     _connections;    ///< Accessed in audio thread only
+	List<PortImpl*> _input_ports;    ///< Accessed in preprocessing thread only
+	List<PortImpl*> _output_ports;   ///< Accessed in preprocessing thread only
+	Nodes           _nodes;          ///< Accessed in preprocessing thread only
+	bool            _process;
+};
+
+
+
+/** Private helper for compile */
+inline void
+PatchImpl::compile_recursive(NodeImpl* n, CompiledPatch* output) const
+{
+	if (n == NULL || n->traversed())
+		return;
+
+	n->traversed(true);
+	assert(output != NULL);
+	
+	for (List<NodeImpl*>::iterator i = n->providers()->begin(); i != n->providers()->end(); ++i)
+		if ( ! (*i)->traversed() )
+			compile_recursive((*i), output);
+
+	output->push_back(CompiledNode(n, n->providers()->size(), n->dependants()));
+}
+
+
+} // namespace Ingen
+
+#endif // PATCHIMPL_H