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authorDavid Robillard <d@drobilla.net>2012-11-16 04:26:45 +0000
committerDavid Robillard <d@drobilla.net>2012-11-16 04:26:45 +0000
commite5943aa05fd46771f1ff7009c8971f1294c9d791 (patch)
tree828fb9156f373149883a81dd0638991b0b9ba851 /src/server/internals/Time.cpp
parentefd2fb1315413bb456cf5a7dc9a61513e15c8035 (diff)
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Add time internal that sends Jack transport updates as LV2 time positions.
git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@4819 a436a847-0d15-0410-975c-d299462d15a1
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diff --git a/src/server/internals/Time.cpp b/src/server/internals/Time.cpp
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+/*
+ This file is part of Ingen.
+ Copyright 2007-2012 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 "ingen/URIs.hpp"
+#include "lv2/lv2plug.in/ns/ext/atom/util.h"
+#include "lv2/lv2plug.in/ns/ext/midi/midi.h"
+
+#include "Buffer.hpp"
+#include "Driver.hpp"
+#include "Engine.hpp"
+#include "InternalPlugin.hpp"
+#include "OutputPort.hpp"
+#include "PostProcessor.hpp"
+#include "ProcessContext.hpp"
+#include "internals/Time.hpp"
+#include "util.hpp"
+
+namespace Ingen {
+namespace Server {
+namespace Internals {
+
+InternalPlugin* TimeNode::internal_plugin(URIs& uris) {
+ return new InternalPlugin(
+ uris, Raul::URI(NS_INTERNALS "Time"), Raul::Symbol("time"));
+}
+
+TimeNode::TimeNode(InternalPlugin* plugin,
+ BufferFactory& bufs,
+ const Raul::Symbol& symbol,
+ bool polyphonic,
+ GraphImpl* parent,
+ SampleRate srate)
+ : BlockImpl(plugin, symbol, false, parent, srate)
+{
+ const Ingen::URIs& uris = bufs.uris();
+ _ports = new Raul::Array<PortImpl*>(1);
+
+ _notify_port = new OutputPort(
+ bufs, this, Raul::Symbol("notify"), 0, 1,
+ PortType::ATOM, uris.atom_Sequence, Raul::Atom(), 1024);
+ _notify_port->set_property(uris.lv2_name, bufs.forge().alloc("Notify"));
+ _notify_port->set_property(uris.atom_supports,
+ bufs.forge().make_urid(uris.time_Position));
+ _ports->at(0) = _notify_port;
+}
+
+void
+TimeNode::process(ProcessContext& context)
+{
+ BlockImpl::pre_process(context);
+
+ BufferRef buf = _notify_port->buffer(0);
+ LV2_Atom_Sequence* seq = (LV2_Atom_Sequence*)buf->atom();
+
+ // Initialise output to the empty sequence
+ seq->atom.type = _notify_port->bufs().uris().atom_Sequence;
+ seq->atom.size = sizeof(LV2_Atom_Sequence_Body);
+
+ // Ask the driver to append any time events for this cycle
+ context.engine().driver()->append_time_events(
+ context, *_notify_port->buffer(0));
+
+ BlockImpl::post_process(context);
+}
+
+} // namespace Internals
+} // namespace Server
+} // namespace Ingen
+