c@97: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
c@97: 
c@97: /*
c@97:     Piper C++
c@97: 
c@97:     An API for audio analysis and feature extraction plugins.
c@97: 
c@97:     Centre for Digital Music, Queen Mary, University of London.
c@97:     Copyright 2006-2016 Chris Cannam and QMUL.
c@97:   
c@97:     Permission is hereby granted, free of charge, to any person
c@97:     obtaining a copy of this software and associated documentation
c@97:     files (the "Software"), to deal in the Software without
c@97:     restriction, including without limitation the rights to use, copy,
c@97:     modify, merge, publish, distribute, sublicense, and/or sell copies
c@97:     of the Software, and to permit persons to whom the Software is
c@97:     furnished to do so, subject to the following conditions:
c@97: 
c@97:     The above copyright notice and this permission notice shall be
c@97:     included in all copies or substantial portions of the Software.
c@97: 
c@97:     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
c@97:     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
c@97:     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
c@97:     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
c@97:     ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
c@97:     CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
c@97:     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
c@97: 
c@97:     Except as contained in this notice, the names of the Centre for
c@97:     Digital Music; Queen Mary, University of London; and Chris Cannam
c@97:     shall not be used in advertising or otherwise to promote the sale,
c@97:     use or other dealings in this Software without prior written
c@97:     authorization.
c@97: */
c@97: 
c@97: #ifndef PIPER_LOADER_REQUESTS_H
c@97: #define PIPER_LOADER_REQUESTS_H
c@97: 
c@97: #include "PluginStaticData.h"
c@97: #include "PluginConfiguration.h"
c@97: 
c@97: #include <vamp-hostsdk/PluginLoader.h>
c@97: 
c@97: #include <map>
c@97: #include <string>
c@97: 
c@97: namespace piper_vamp {
c@97: 
c@97: class LoaderRequests
c@97: {
c@97: public:
c@97:     ListResponse
c@97:     listPluginData() {
c@97: 
c@97: 	auto loader = Vamp::HostExt::PluginLoader::getInstance();
c@97: 	auto keys = loader->listPlugins();
c@97: 	ListResponse response;
c@97: 
c@97: 	for (std::string key: keys) {
c@97: 	    Vamp::Plugin *p = loader->loadPlugin(key, 44100, 0);
c@97: 	    if (!p) continue;
c@97: 	    auto category = loader->getPluginCategory(key);
c@97: 	    response.available.push_back
c@97: 		(PluginStaticData::fromPlugin(key, category, p));
c@97: 	    delete p;
c@97: 	}
c@97: 
c@97: 	return response;
c@97:     }
c@97: 
c@97:     LoadResponse
c@97:     loadPlugin(LoadRequest req) {
c@97: 
c@97: 	auto loader = Vamp::HostExt::PluginLoader::getInstance();
c@97: 	
c@97: 	Vamp::Plugin *plugin = loader->loadPlugin(req.pluginKey,
c@97: 						  req.inputSampleRate,
c@97: 						  req.adapterFlags);
c@97: 
c@97: 	LoadResponse response;
c@97: 	response.plugin = plugin;
c@97: 	if (!plugin) return response;
c@97: 
c@97: 	response.plugin = plugin;
c@97: 	response.staticData = PluginStaticData::fromPlugin
c@97: 	    (req.pluginKey,
c@97: 	     loader->getPluginCategory(req.pluginKey),
c@97: 	     plugin);
c@97: 
c@97: 	int defaultChannels = 0;
c@97: 	if (plugin->getMinChannelCount() == plugin->getMaxChannelCount()) {
c@97: 	    defaultChannels = plugin->getMinChannelCount();
c@97: 	}
c@97: 	
c@97: 	response.defaultConfiguration = PluginConfiguration::fromPlugin
c@97: 	    (plugin,
c@97: 	     defaultChannels,
c@97: 	     plugin->getPreferredStepSize(),
c@97: 	     plugin->getPreferredBlockSize());
c@97: 	
c@97: 	return response;
c@97:     }
c@97: 
c@97:     ConfigurationResponse
c@97:     configurePlugin(ConfigurationRequest req) {
c@97: 	
c@97: 	for (PluginConfiguration::ParameterMap::const_iterator i =
c@97: 		 req.configuration.parameterValues.begin();
c@97: 	     i != req.configuration.parameterValues.end(); ++i) {
c@97: 	    req.plugin->setParameter(i->first, i->second);
c@97: 	}
c@97: 
c@97: 	if (req.configuration.currentProgram != "") {
c@97: 	    req.plugin->selectProgram(req.configuration.currentProgram);
c@97: 	}
c@97: 
c@97: 	ConfigurationResponse response;
c@97: 
c@97: 	response.plugin = req.plugin;
c@97:     
c@97: 	if (req.plugin->initialise(req.configuration.channelCount,
c@97: 				   req.configuration.stepSize,
c@97: 				   req.configuration.blockSize)) {
c@97: 	    response.outputs = req.plugin->getOutputDescriptors();
c@97: 	}
c@97: 
c@97: 	return response;
c@97:     }
c@97: };
c@97: 
c@97: }
c@97: 
c@97: #endif