From 79fceb7b387cf45deab770a12f116493a24e5350 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sat, 8 Jan 2011 05:20:34 +0000
Subject: Support "request run" feature from contexts extension.

git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@2791 a436a847-0d15-0410-975c-d299462d15a1
---
 src/engine/LV2RequestRunFeature.hpp | 82 +++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 src/engine/LV2RequestRunFeature.hpp

(limited to 'src/engine/LV2RequestRunFeature.hpp')

diff --git a/src/engine/LV2RequestRunFeature.hpp b/src/engine/LV2RequestRunFeature.hpp
new file mode 100644
index 00000000..40de2cfb
--- /dev/null
+++ b/src/engine/LV2RequestRunFeature.hpp
@@ -0,0 +1,82 @@
+/* This file is part of Ingen.
+ * Copyright (C) 2010 David 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 INGEN_ENGINE_LV2_REQUEST_RUN_FEATURE_HPP
+#define INGEN_ENGINE_LV2_REQUEST_RUN_FEATURE_HPP
+
+#include "lv2/lv2plug.in/ns/ext/contexts/contexts.h"
+
+#include "raul/log.hpp"
+
+#include "shared/LV2Features.hpp"
+
+#include "Driver.hpp"
+#include "Engine.hpp"
+#include "MessageContext.hpp"
+#include "NodeImpl.hpp"
+#include "PortImpl.hpp"
+
+using namespace std;
+using namespace Raul;
+
+namespace Ingen {
+
+struct RequestRunFeature : public Shared::LV2Features::Feature {
+	struct Data {
+		inline Data(Shared::World* w, Shared::Node* n) : world(w), node(n) {}
+		Shared::World* world;
+		Shared::Node*  node;
+	};
+
+	static void request_run(LV2_Contexts_Request_Run_Data data_ptr,
+	                        uint32_t                      context_uri) {
+		Data* data = reinterpret_cast<Data*>(data_ptr);
+		if (!data->world->local_engine())
+			return;
+
+		data->world->local_engine()->message_context()->run(
+			dynamic_cast<NodeImpl*>(data->node),
+			data->world->local_engine()->driver()->frame_time());
+	}
+
+	static void delete_feature(LV2_Feature* feature) {
+		delete (Data*)feature->data;
+		free(feature);
+	}
+
+	SharedPtr<LV2_Feature> feature(Shared::World* world, Shared::Node* n) {
+		info << "REQUEST RUN FEATURE FOR NODE " << n->path() << endl;
+		NodeImpl* node = dynamic_cast<NodeImpl*>(n);
+		if (!node)
+			return SharedPtr<LV2_Feature>();
+
+		typedef LV2_Contexts_Request_Run_Feature Feature;
+		Feature* data = (Feature*)malloc(sizeof(Feature));
+		data->data        = new Data(world, n);
+		data->request_run = &request_run;
+
+		LV2_Feature* f = (LV2_Feature*)malloc(sizeof(LV2_Feature));
+		f->URI  = LV2_CONTEXTS_URI "#RequestRunFeature";
+		f->data = data;
+
+		return SharedPtr<LV2_Feature>(f, &delete_feature);
+	}
+};
+
+} // namespace Ingen
+
+#endif // INGEN_ENGINE_LV2_REQUEST_RUN_FEATURE_HPP
-- 
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