From 539560bcac12e38424f05261d4f26870a1edadad Mon Sep 17 00:00:00 2001 From: Robin Gareus Date: Tue, 31 Oct 2017 03:15:43 +0100 Subject: Add polarity-invert processor --- libs/ardour/ardour/polarity_processor.h | 50 +++++++++++++++++++++ libs/ardour/luabindings.cc | 5 +++ libs/ardour/polarity_processor.cc | 80 +++++++++++++++++++++++++++++++++ libs/ardour/wscript | 1 + 4 files changed, 136 insertions(+) create mode 100644 libs/ardour/ardour/polarity_processor.h create mode 100644 libs/ardour/polarity_processor.cc (limited to 'libs') diff --git a/libs/ardour/ardour/polarity_processor.h b/libs/ardour/ardour/polarity_processor.h new file mode 100644 index 0000000000..d059b3799b --- /dev/null +++ b/libs/ardour/ardour/polarity_processor.h @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2017 Robin Gareus + * + * This program 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. + * + * This program 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 more 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 Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef _ardour_polarity_processor_h__ +#define _ardour_polarity_processor_h__ + +#include "ardour/processor.h" +#include "ardour/types.h" + +namespace ARDOUR { + +class LIBARDOUR_API PolarityProcessor : public Processor +{ +public: + PolarityProcessor (Session&, boost::shared_ptr); + + bool display_to_user() const { return false; } + void run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_sample, double speed, pframes_t nframes, bool result_required); + bool configure_io (ChanCount in, ChanCount out); + bool can_support_io_configuration (const ChanCount& in, ChanCount& out); + + boost::shared_ptr phase_control() { + return _control; + } + +protected: + XMLNode& state (); + +private: + boost::shared_ptr _control; +}; + +} + +#endif diff --git a/libs/ardour/luabindings.cc b/libs/ardour/luabindings.cc index d15b8fec93..15122e96b8 100644 --- a/libs/ardour/luabindings.cc +++ b/libs/ardour/luabindings.cc @@ -61,6 +61,7 @@ #include "ardour/playlist.h" #include "ardour/plugin.h" #include "ardour/plugin_insert.h" +#include "ardour/polarity_processor.h" #include "ardour/port_manager.h" #include "ardour/progress.h" #include "ardour/runtime_functions.h" @@ -1335,6 +1336,7 @@ LuaBindings::common (lua_State* L) .addCast ("to_peakmeter") .addCast ("to_monitorprocessor") .addCast ("to_send") + .addCast ("to_polarityprocessor") #if 0 // those objects are not yet bound .addCast ("to_capturingprocessor") .addCast ("to_delayline") @@ -1542,6 +1544,9 @@ LuaBindings::common (lua_State* L) .deriveWSPtrClass ("UnknownProcessor") .endClass () + .deriveWSPtrClass ("PolarityProcessor") + .endClass () + .deriveWSPtrClass ("PluginControl") .endClass () diff --git a/libs/ardour/polarity_processor.cc b/libs/ardour/polarity_processor.cc new file mode 100644 index 0000000000..5604cd4000 --- /dev/null +++ b/libs/ardour/polarity_processor.cc @@ -0,0 +1,80 @@ +/* + * Copyright (C) 2017 Robin Gareus + * + * This program 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. + * + * This program 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 more 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 Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "ardour/audio_buffer.h" +#include "ardour/phase_control.h" +#include "ardour/polarity_processor.h" + +#include "pbd/i18n.h" + +using namespace ARDOUR; +using namespace PBD; + +PolarityProcessor::PolarityProcessor (Session& s, boost::shared_ptr control) + : Processor(s, "Polarity") + , _control (control) +{ +} + +bool +PolarityProcessor::can_support_io_configuration (const ChanCount& in, ChanCount& out) +{ + out = in; + return true; +} + +bool +PolarityProcessor::configure_io (ChanCount in, ChanCount out) +{ + if (out != in) { // always 1:1 + return false; + } + + return Processor::configure_io (in, out); +} + +void +PolarityProcessor::run (BufferSet& bufs, samplepos_t /*start_sample*/, samplepos_t /*end_sample*/, double /*speed*/, pframes_t nframes, bool) +{ + if (!_active && !_pending_active) { + return; + } + _active = _pending_active; + + if (_control->none()) { + return; + } + int chn = 0; + + for (BufferSet::audio_iterator i = bufs.audio_begin(); i != bufs.audio_end(); ++i, ++chn) { + Sample* const sp = i->data(); + if (_control->inverted (chn)) { + for (pframes_t nx = 0; nx < nframes; ++nx) { + sp[nx] = -sp[nx]; + } + } + } +} + +XMLNode& +PolarityProcessor::state () +{ + XMLNode& node (Processor::state ()); + node.set_property("type", "polarity"); + return node; +} diff --git a/libs/ardour/wscript b/libs/ardour/wscript index f5d30f147b..7a4a26c151 100644 --- a/libs/ardour/wscript +++ b/libs/ardour/wscript @@ -168,6 +168,7 @@ libardour_sources = [ 'plugin.cc', 'plugin_insert.cc', 'plugin_manager.cc', + 'polarity_processor.cc', 'port.cc', 'port_insert.cc', 'port_manager.cc', -- cgit v1.2.3