1 files changed, 71 insertions, 0 deletions
diff --git a/src/server/LV2Options.hpp b/src/server/LV2Options.hpp
new file mode 100644
index 00000000..ef7c5ec9
--- /dev/null
+++ b/src/server/LV2Options.hpp
@@ -0,0 +1,71 @@
+/*
+  This file is part of Ingen.
+  Copyright 2007-2016 David Robillard <http://drobilla.net/>
+
+  Ingen is free software: you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free
+  Software Foundation, either version 3 of the License, or 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 Affero General Public License for details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with Ingen.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef INGEN_ENGINE_LV2OPTIONS_HPP
+#define INGEN_ENGINE_LV2OPTIONS_HPP
+
+#include "ingen/LV2Features.hpp"
+#include "ingen/URIs.hpp"
+#include "lv2/lv2plug.in/ns/ext/options/options.h"
+
+namespace Ingen {
+namespace Server {
+
+class LV2Options : public Ingen::LV2Features::Feature {
+public:
+	explicit LV2Options(const URIs& uris)
+		: _uris(uris)
+	{}
+
+	void set(int32_t sample_rate, int32_t block_length, int32_t seq_size) {
+		_sample_rate  = sample_rate;
+		_block_length = block_length;
+		_seq_size     = seq_size;
+	}
+
+	const char* uri() const { return LV2_OPTIONS__options; }
+
+	SPtr<LV2_Feature> feature(World* w, Node* n) {
+		const LV2_Options_Option options[] = {
+			{ LV2_OPTIONS_INSTANCE, 0, _uris.bufsz_minBlockLength,
+			  sizeof(int32_t), _uris.atom_Int, &_block_length },
+			{ LV2_OPTIONS_INSTANCE, 0, _uris.bufsz_maxBlockLength,
+			  sizeof(int32_t), _uris.atom_Int, &_block_length },
+			{ LV2_OPTIONS_INSTANCE, 0, _uris.bufsz_sequenceSize,
+			  sizeof(int32_t), _uris.atom_Int, &_seq_size },
+			{ LV2_OPTIONS_INSTANCE, 0, _uris.param_sampleRate,
+			  sizeof(int32_t), _uris.atom_Int, &_sample_rate },
+			{ LV2_OPTIONS_INSTANCE, 0, 0, 0, 0, nullptr }
+		};
+
+		LV2_Feature* f = (LV2_Feature*)malloc(sizeof(LV2_Feature));
+		f->URI  = LV2_OPTIONS__options;
+		f->data = malloc(sizeof(options));
+		memcpy(f->data, options, sizeof(options));
+		return SPtr<LV2_Feature>(f, &free_feature);
+	}
+
+private:
+	const URIs& _uris;
+	int32_t     _sample_rate;
+	int32_t     _block_length;
+	int32_t     _seq_size;
+};
+
+} // namespace Server
+} // namespace Ingen
+
+#endif // INGEN_ENGINE_LV2OPTIONS_HPP