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-rw-r--r--src/server/InternalBlock.cpp51
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diff --git a/src/server/InternalBlock.cpp b/src/server/InternalBlock.cpp
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+/*
+ This file is part of Ingen.
+ Copyright 2007-2015 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/>.
+*/
+
+#include "Buffer.hpp"
+#include "InternalBlock.hpp"
+#include "PortImpl.hpp"
+
+namespace Ingen {
+namespace Server {
+
+InternalBlock::InternalBlock(PluginImpl* plugin,
+ const Raul::Symbol& symbol,
+ bool poly,
+ GraphImpl* parent,
+ SampleRate rate)
+ : BlockImpl(plugin, symbol, poly, parent, rate)
+{}
+
+
+void
+InternalBlock::pre_process(ProcessContext& context) {
+ /* Output sequences are initialized in LV2 format, an atom:Chunk with size
+ set to the capacity of the buffer. Internal nodes don't care, so clear
+ to an empty sequences so appending events results in a valid output. */
+ for (uint32_t i = 0; i < num_ports(); ++i) {
+ PortImpl* const port = _ports->at(i);
+ if (port->is_input()) {
+ port->pre_process(context);
+ } else {
+ for (uint32_t v = 0; v < port->poly(); ++v) {
+ port->buffer(v)->clear();
+ }
+ }
+ }
+}
+
+} // namespace Server
+} // namespace Ingen