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Diffstat (limited to 'src/engine/InputPort.cpp')
-rw-r--r-- | src/engine/InputPort.cpp | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/src/engine/InputPort.cpp b/src/engine/InputPort.cpp deleted file mode 100644 index 80058632..00000000 --- a/src/engine/InputPort.cpp +++ /dev/null @@ -1,229 +0,0 @@ -/* This file is part of Ingen. - * Copyright 2007-2011 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 - */ - -#include "InputPort.hpp" -#include <cstdlib> -#include <cassert> -#include "ingen/Patch.hpp" -#include "shared/LV2URIMap.hpp" -#include "AudioBuffer.hpp" -#include "BufferFactory.hpp" -#include "ConnectionImpl.hpp" -#include "EventBuffer.hpp" -#include "NodeImpl.hpp" -#include "OutputPort.hpp" -#include "ProcessContext.hpp" -#include "ThreadManager.hpp" -#include "mix.hpp" -#include "util.hpp" - -using namespace std; - -namespace Ingen { -namespace Engine { - -InputPort::InputPort(BufferFactory& bufs, - NodeImpl* parent, - const Raul::Symbol& symbol, - uint32_t index, - uint32_t poly, - PortType type, - const Raul::Atom& value, - size_t buffer_size) - : PortImpl(bufs, parent, symbol, index, poly, type, value, buffer_size) - , _num_connections(0) -{ - const Ingen::Shared::LV2URIMap& uris = bufs.uris(); - - if (!dynamic_cast<Patch*>(parent)) - add_property(uris.rdf_type, uris.lv2_InputPort); - - // Set default control range - if (type == PortType::CONTROL) { - set_property(uris.lv2_minimum, 0.0f); - set_property(uris.lv2_maximum, 1.0f); - } -} - -bool -InputPort::apply_poly(Maid& maid, uint32_t poly) -{ - bool ret = PortImpl::apply_poly(maid, poly); - if (!ret) - poly = 1; - - assert(_buffers->size() >= poly); - - return true; -} - -/** Set \a buffers appropriately if this port has \a num_connections connections. - * \return true iff buffers are locally owned by the port - */ -bool -InputPort::get_buffers(BufferFactory& bufs, - Raul::Array<BufferFactory::Ref>* buffers, - uint32_t poly) -{ - size_t num_connections = (ThreadManager::thread_is(THREAD_PROCESS)) - ? _connections.size() : _num_connections; - - if (buffer_type() == PortType::AUDIO && num_connections == 0) { - // Audio input with no connections, use shared zero buffer - for (uint32_t v = 0; v < poly; ++v) - buffers->at(v) = bufs.silent_buffer(); - return false; - - } else if (num_connections == 1) { - if (ThreadManager::thread_is(THREAD_PROCESS)) { - if (!_connections.front()->must_mix() && !_connections.front()->must_queue()) { - // Single non-mixing conneciton, use buffers directly - for (uint32_t v = 0; v < poly; ++v) - buffers->at(v) = _connections.front()->buffer(v); - return false; - } - } - } - - // Otherwise, allocate local buffers - for (uint32_t v = 0; v < poly; ++v) { - buffers->at(v) = _bufs.get(buffer_type(), _buffer_size); - buffers->at(v)->clear(); - } - return true; -} - -/** Add a connection. Realtime safe. - * - * The buffer of this port will be set directly to the connection's buffer - * if there is only one connection, since no copying/mixing needs to take place. - * - * Note that setup_buffers must be called after this before the change - * will audibly take effect. - */ -void -InputPort::add_connection(Connections::Node* const c) -{ - ThreadManager::assert_thread(THREAD_PROCESS); - - _connections.push_back(c); - - // Automatically broadcast connected control inputs - if (is_a(PortType::CONTROL)) - _broadcast = true; -} - -/** Remove a connection. Realtime safe. - * - * Note that setup_buffers must be called after this before the change - * will audibly take effect. - */ -InputPort::Connections::Node* -InputPort::remove_connection(ProcessContext& context, const OutputPort* src_port) -{ - ThreadManager::assert_thread(THREAD_PROCESS); - - Connections::Node* connection = NULL; - for (Connections::iterator i = _connections.begin(); i != _connections.end();) { - Connections::iterator next = i; - ++next; - - if ((*i)->src_port() == src_port) { - connection = _connections.erase(i); - break; - } - - i = next; - } - - if ( ! connection) { - error << "[InputPort::remove_connection] Connection not found!" << endl; - return NULL; - } - - // Turn off broadcasting if we're no longer connected - if (is_a(PortType::CONTROL) && _connections.size() == 0) - _broadcast = false; - - return connection; -} - -/** Prepare buffer for access, mixing if necessary. Realtime safe. - */ -void -InputPort::pre_process(Context& context) -{ - // If value has been set (e.g. events pushed) by the user, don't smash it - if (_set_by_user) - return; - - uint32_t max_num_srcs = 0; - for (Connections::iterator c = _connections.begin(); c != _connections.end(); ++c) - max_num_srcs += (*c)->src_port()->poly(); - - IntrusivePtr<Buffer> srcs[max_num_srcs]; - - if (_connections.empty()) { - for (uint32_t v = 0; v < _poly; ++v) { - buffer(v)->prepare_read(context); - } - } else if (direct_connect()) { - for (uint32_t v = 0; v < _poly; ++v) { - _buffers->at(v) = _connections.front()->buffer(v); - _buffers->at(v)->prepare_read(context); - } - } else { - for (uint32_t v = 0; v < _poly; ++v) { - uint32_t num_srcs = 0; - for (Connections::iterator c = _connections.begin(); c != _connections.end(); ++c) - (*c)->get_sources(context, v, srcs, max_num_srcs, num_srcs); - - mix(context, buffer(v).get(), srcs, num_srcs); - buffer(v)->prepare_read(context); - } - } - - if (_broadcast) - broadcast_value(context, false); -} - -void -InputPort::post_process(Context& context) -{ - if (_set_by_user) { - if (buffer_type() == PortType::EVENTS) { - // Clear events received via a SetPortValue - for (uint32_t v = 0; v < _poly; ++v) { - buffer(v)->clear(); - } - } - _set_by_user = false; - } -} - -bool -InputPort::direct_connect() const -{ - return (context() == Context::AUDIO) - && _connections.size() == 1 - && !_connections.front()->must_mix() - && !_connections.front()->must_queue(); -} - -} // namespace Engine -} // namespace Ingen - |