summaryrefslogtreecommitdiffstats
path: root/src/libs/engine/CompiledPatch.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/libs/engine/CompiledPatch.hpp')
-rw-r--r--src/libs/engine/CompiledPatch.hpp84
1 files changed, 84 insertions, 0 deletions
diff --git a/src/libs/engine/CompiledPatch.hpp b/src/libs/engine/CompiledPatch.hpp
new file mode 100644
index 00000000..9ab252b3
--- /dev/null
+++ b/src/libs/engine/CompiledPatch.hpp
@@ -0,0 +1,84 @@
+/* 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 COMPILED_PATCH_HPP
+#define COMPILED_PATCH_HPP
+
+#include <iostream>
+#include <vector>
+#include <raul/List.hpp>
+#include <raul/Deletable.hpp>
+#include <boost/utility.hpp>
+
+using Raul::List;
+
+using namespace std;
+
+namespace Ingen {
+
+
+/** A node, and it's providers/dependants.
+ *
+ * This is all the information required to execute a node in a process thread.
+ */
+struct CompiledNode {
+ CompiledNode(Node* n, size_t np, List<Node*>* d)
+ : _node(n), _n_providers(np)
+ {
+ // Copy to a vector for maximum iteration speed and cache optimization
+ // (Need to take a copy anyway)
+
+ for (List<Node*>::iterator i = d->begin(); i != d->end(); ++i)
+ _dependants.push_back(*i);
+ }
+
+ Node* node() const { return _node; }
+ size_t n_providers() const { return _n_providers; }
+ const vector<Node*>& dependants() const { return _dependants; }
+
+private:
+ Node* _node;
+ size_t _n_providers; ///< Number of input ready signals to trigger run
+ vector<Node*> _dependants; ///< Nodes this one's output ports are connected to
+};
+
+
+/** A patch and a set of connections, "compiled" into a flat structure with
+ * the correct order so the audio thread(s) can execute it without
+ * threading problems (since the preprocessor thread fiddles with other
+ * things).
+ *
+ * Currently objects still have some 'heavyweight' connection state, but
+ * eventually this should be the only place a particular set of connections
+ * in a patch is stored, so various "connection presets" can be switched
+ * in a realtime safe way.
+ *
+ * The nodes contained here are sorted in the order they must be executed.
+ * The parallel processing algorithm guarantees no node will be executed
+ * before it's providers, using this order as well as semaphores.
+ */
+struct CompiledPatch : public std::vector<CompiledNode>
+ , public Raul::Deletable
+ , public boost::noncopyable {
+ /*CompiledPatch() : std::vector<CompiledNode>() {}
+ CompiledPatch(size_t reserve) : std::vector<CompiledNode>(reserve) {}*/
+};
+
+
+} // namespace Ingen
+
+#endif // COMPILED_PATCH_HPP