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Diffstat (limited to 'src/server/DuplexPort.hpp')
-rw-r--r-- | src/server/DuplexPort.hpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/server/DuplexPort.hpp b/src/server/DuplexPort.hpp new file mode 100644 index 00000000..b0066164 --- /dev/null +++ b/src/server/DuplexPort.hpp @@ -0,0 +1,98 @@ +/* + 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_DUPLEXPORT_HPP +#define INGEN_ENGINE_DUPLEXPORT_HPP + +#include <boost/intrusive/slist.hpp> + +#include "BufferRef.hpp" +#include "InputPort.hpp" + +namespace Ingen { +namespace Server { + +class BlockImpl; + +/** A duplex Port (both an input and output port on a Graph) + * + * This is used for Graph ports, since they need to appear as both an input and + * an output port based on context. There are no actual duplex ports in Ingen, + * a Port is either an Input or Output. This class only exists to allow Graph + * outputs to appear as inputs from within that Graph, and vice versa. + * + * \ingroup engine + */ +class DuplexPort : public InputPort + , public boost::intrusive::slist_base_hook<> // In GraphImpl +{ +public: + DuplexPort(BufferFactory& bufs, + GraphImpl* parent, + const Raul::Symbol& symbol, + uint32_t index, + bool polyphonic, + PortType type, + LV2_URID buf_type, + size_t buf_size, + const Atom& value, + bool is_output); + + virtual ~DuplexPort(); + + DuplexPort* duplicate(Engine& engine, + const Raul::Symbol& symbol, + GraphImpl* parent); + + void inherit_neighbour(const PortImpl* port, + Properties& remove, + Properties& add); + + void on_property(const URI& uri, const Atom& value); + + uint32_t max_tail_poly(RunContext& context) const; + + bool prepare_poly(BufferFactory& bufs, uint32_t poly); + + bool apply_poly(RunContext& context, uint32_t poly); + + bool get_buffers(BufferFactory& bufs, + PortImpl::GetFn get, + const MPtr<Voices>& voices, + uint32_t poly, + size_t num_in_arcs) const; + + virtual void set_is_driver_port(BufferFactory& bufs); + + /** Set the external driver-provided buffer. + * + * This may only be called in the process thread, after an earlier call to + * prepare_driver_buffer(). + */ + void set_driver_buffer(void* buf, uint32_t capacity); + + bool setup_buffers(RunContext& ctx, BufferFactory& bufs, uint32_t poly); + + void pre_process(RunContext& context); + void post_process(RunContext& context); + + SampleCount next_value_offset(SampleCount offset, SampleCount end) const; +}; + +} // namespace Server +} // namespace Ingen + +#endif // INGEN_ENGINE_DUPLEXPORT_HPP |