Reworked use of Plugin class in engine slightly (more RAII-ey)

git-svn-id: http://svn.drobilla.net/lad/grauph@56 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 65 insertions, 0 deletions

diff --git a/src/libs/engine/LADSPANode.h b/src/libs/engine/LADSPANode.h
new file mode 100644
index 00000000..c8b498c9
--- /dev/null
+++ b/src/libs/engine/LADSPANode.h
@@ -0,0 +1,65 @@
+/* This file is part of Om.  Copyright (C) 2006 Dave Robillard.
+ * 
+ * Om 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.
+ * 
+ * Om 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.,
+ * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef LADSPANODE_H
+#define LADSPANODE_H
+
+#include <string>
+#include <ladspa.h>
+#include "util/types.h"
+#include "NodeBase.h"
+#include "Plugin.h"
+
+namespace Om {
+
+
+/** An instance of a LADSPA plugin.
+ *
+ * \ingroup engine
+ */
+class LADSPANode : public NodeBase
+{
+public:
+	LADSPANode(const Plugin* plugin, const string& name, size_t poly, Patch* parent, const LADSPA_Descriptor* descriptor, samplerate srate, size_t buffer_size);
+	virtual ~LADSPANode();
+
+	virtual bool instantiate();
+
+	void activate();
+	void deactivate();
+	
+	void run(size_t nframes);
+	
+	void set_port_buffer(size_t voice, size_t port_num, void* buf);
+
+	const Plugin* plugin() const  { return _plugin; }
+	void plugin(const Plugin* const pi) { _plugin = pi; }
+	
+protected:
+	// Prevent copies (undefined)
+	LADSPANode(const LADSPANode& copy);
+	LADSPANode& operator=(const LADSPANode&);
+
+	//void get_port_vals(ulong port_index, PortInfo* info);
+	
+	const LADSPA_Descriptor* _descriptor;
+	LADSPA_Handle*           _instances;	
+};
+
+
+} // namespace Om
+
+#endif // LADSPANODE_H