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eb5b757947
* Remove fpp_t, switch f_cnt_t to std::uint64_t, change uses of fpp_t to use f_cnt_t instead * Switch release_frame in Lb302 to use f_cnt_t * Switch ch_cnt_t to uint16_t * Update src/core/NotePlayHandle.cpp Co-authored-by: Dalton Messmer <messmer.dalton@gmail.com> * Update src/core/NotePlayHandle.cpp Co-authored-by: Dalton Messmer <messmer.dalton@gmail.com> --------- Co-authored-by: Dalton Messmer <messmer.dalton@gmail.com>
153 lines
3.6 KiB
C++
153 lines
3.6 KiB
C++
/*
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* VstEffect.cpp - class for handling VST effect plugins
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*
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* Copyright (c) 2006-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of LMMS - https://lmms.io
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#include "VstEffect.h"
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#include "GuiApplication.h"
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#include "Song.h"
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#include "TextFloat.h"
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#include "VstPlugin.h"
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#include "VstSubPluginFeatures.h"
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#include "embed.h"
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#include "plugin_export.h"
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namespace lmms
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{
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extern "C"
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{
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Plugin::Descriptor PLUGIN_EXPORT vsteffect_plugin_descriptor =
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{
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LMMS_STRINGIFY( PLUGIN_NAME ),
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"VST",
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QT_TRANSLATE_NOOP( "PluginBrowser",
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"plugin for using arbitrary VST effects inside LMMS." ),
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"Tobias Doerffel <tobydox/at/users.sf.net>",
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0x0200,
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Plugin::Type::Effect,
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new PluginPixmapLoader("logo"),
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nullptr,
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new VstSubPluginFeatures( Plugin::Type::Effect )
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} ;
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}
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VstEffect::VstEffect( Model * _parent,
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const Descriptor::SubPluginFeatures::Key * _key ) :
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Effect( &vsteffect_plugin_descriptor, _parent, _key ),
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m_pluginMutex(),
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m_key( *_key ),
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m_vstControls( this )
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{
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bool loaded = false;
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if( !m_key.attributes["file"].isEmpty() )
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{
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loaded = openPlugin(m_key.attributes["file"]);
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}
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setDisplayName( m_key.attributes["file"].section( ".dll", 0, 0 ).isEmpty()
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? m_key.name : m_key.attributes["file"].section( ".dll", 0, 0 ) );
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setDontRun(!loaded);
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}
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Effect::ProcessStatus VstEffect::processImpl(SampleFrame* buf, const f_cnt_t frames)
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{
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assert(m_plugin != nullptr);
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static thread_local auto tempBuf = std::array<SampleFrame, MAXIMUM_BUFFER_SIZE>();
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std::memcpy(tempBuf.data(), buf, sizeof(SampleFrame) * frames);
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if (m_pluginMutex.tryLock(Engine::getSong()->isExporting() ? -1 : 0))
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{
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m_plugin->process(tempBuf.data(), tempBuf.data());
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m_pluginMutex.unlock();
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}
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const float w = wetLevel();
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const float d = dryLevel();
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for (f_cnt_t f = 0; f < frames; ++f)
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{
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buf[f][0] = w * tempBuf[f][0] + d * buf[f][0];
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buf[f][1] = w * tempBuf[f][1] + d * buf[f][1];
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}
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return ProcessStatus::ContinueIfNotQuiet;
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}
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bool VstEffect::openPlugin(const QString& plugin)
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{
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gui::TextFloat* tf = nullptr;
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if( gui::getGUI() != nullptr )
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{
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tf = gui::TextFloat::displayMessage(
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VstPlugin::tr( "Loading plugin" ),
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VstPlugin::tr( "Please wait while loading VST plugin..." ),
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PLUGIN_NAME::getIconPixmap( "logo", 24, 24 ), 0 );
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}
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QMutexLocker ml( &m_pluginMutex ); Q_UNUSED( ml );
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m_plugin = QSharedPointer<VstPlugin>(new VstPlugin(plugin));
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if( m_plugin->failed() )
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{
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m_plugin.clear();
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delete tf;
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collectErrorForUI(VstPlugin::tr("The VST plugin %1 could not be loaded.").arg(plugin));
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return false;
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}
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delete tf;
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m_key.attributes["file"] = plugin;
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return true;
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}
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extern "C"
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{
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// necessary for getting instance out of shared lib
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PLUGIN_EXPORT Plugin * lmms_plugin_main( Model * _parent, void * _data )
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{
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return new VstEffect( _parent,
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static_cast<const Plugin::Descriptor::SubPluginFeatures::Key *>(
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_data ) );
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}
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}
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} // namespace lmms
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