Chris@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@0: 
Chris@0: /*
Chris@0:     VamPipe
Chris@0: 
Chris@0:     Centre for Digital Music, Queen Mary, University of London.
Chris@0:     Copyright 2015-2016 QMUL.
Chris@0:   
Chris@0:     Permission is hereby granted, free of charge, to any person
Chris@0:     obtaining a copy of this software and associated documentation
Chris@0:     files (the "Software"), to deal in the Software without
Chris@0:     restriction, including without limitation the rights to use, copy,
Chris@0:     modify, merge, publish, distribute, sublicense, and/or sell copies
Chris@0:     of the Software, and to permit persons to whom the Software is
Chris@0:     furnished to do so, subject to the following conditions:
Chris@0: 
Chris@0:     The above copyright notice and this permission notice shall be
Chris@0:     included in all copies or substantial portions of the Software.
Chris@0: 
Chris@0:     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
Chris@0:     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Chris@0:     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Chris@0:     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
Chris@0:     ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
Chris@0:     CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
Chris@0:     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Chris@0: 
Chris@0:     Except as contained in this notice, the names of the Centre for
Chris@0:     Digital Music; Queen Mary, University of London; and Chris Cannam
Chris@0:     shall not be used in advertising or otherwise to promote the sale,
Chris@0:     use or other dealings in this Software without prior written
Chris@0:     authorization.
Chris@0: */
Chris@0: 
Chris@0: #ifndef VAMPIPE_ADAPTER_H
Chris@0: #define VAMPIPE_ADAPTER_H
Chris@0: 
Chris@0: #include <vamp-hostsdk/PluginStaticData.h>
Chris@0: #include <vamp-hostsdk/PluginConfiguration.h>
Chris@0: #include <vamp-hostsdk/RequestResponse.h>
Chris@0: 
Chris@0: #include <vamp-hostsdk/PluginInputDomainAdapter.h>
Chris@0: #include <vamp-hostsdk/PluginBufferingAdapter.h>
Chris@0: #include <vamp-hostsdk/PluginChannelAdapter.h>
Chris@0: 
Chris@0: namespace vampipe {
Chris@0: 
Chris@0: class VamPipeAdapterBase
Chris@0: {
Chris@0: public:
Chris@0:     virtual Vamp::HostExt::PluginStaticData getStaticData() const = 0;
Chris@0:     virtual Vamp::HostExt::LoadResponse loadPlugin(Vamp::HostExt::LoadRequest r) const = 0;
Chris@0: };
Chris@0: 
Chris@0: template <typename P>
Chris@0: class VamPipeAdapter : public VamPipeAdapterBase
Chris@0: {
Chris@0:     const int adaptInputDomain = 0x01;
Chris@0:     const int adaptChannelCount = 0x02;
Chris@0:     const int adaptBufferSize = 0x04;
Chris@0:     
Chris@0: public:
Chris@0:     VamPipeAdapter(std::string libname) :
Chris@0: 	m_soname(libname) { }
Chris@0:     
Chris@0:     virtual Vamp::HostExt::PluginStaticData getStaticData() const {
Chris@0: 	P p(44100.f);
Chris@0: 	return Vamp::HostExt::PluginStaticData::fromPlugin
Chris@0: 	    (m_soname + ":" + p.getIdentifier(),
Chris@0: 	     {}, //!!! todo: category - tricky one that
Chris@0: 	     &p);
Chris@0:     }
Chris@0: 
Chris@0:     virtual Vamp::HostExt::LoadResponse loadPlugin(Vamp::HostExt::
Chris@0: 						   LoadRequest r) const {
Chris@0: 	
Chris@0: 	// We assume the caller has guaranteed that the request is for
Chris@0: 	// the correct plugin (so we don't have to check the plugin
Chris@0: 	// key field here)
Chris@0: 
Chris@0: 	Vamp::Plugin *p = new P(r.inputSampleRate);
Chris@0: 	
Chris@0: 	if (r.adapterFlags & adaptInputDomain) {
Chris@0: 	    if (p->getInputDomain() == Vamp::Plugin::FrequencyDomain) {
Chris@0: 		p = new Vamp::HostExt::PluginInputDomainAdapter(p);
Chris@0: 	    }
Chris@0: 	}
Chris@0: 
Chris@0: 	if (r.adapterFlags & adaptBufferSize) {
Chris@0: 	    p = new Vamp::HostExt::PluginBufferingAdapter(p);
Chris@0: 	}
Chris@0: 
Chris@0: 	if (r.adapterFlags & adaptChannelCount) {
Chris@0: 	    p = new Vamp::HostExt::PluginChannelAdapter(p);
Chris@0: 	}
Chris@0: 
Chris@0: 	Vamp::HostExt::LoadResponse response;
Chris@0: 	response.plugin = p;
Chris@0: 
Chris@0: 	response.staticData = Vamp::HostExt::PluginStaticData::fromPlugin
Chris@0: 	    (m_soname + ":" + p->getIdentifier(),
Chris@0: 	     {}, //!!! todo: category - tricky one that
Chris@0: 	     p);
Chris@0: 
Chris@0: 	int defaultChannels = 0;
Chris@0: 	if (p->getMinChannelCount() == p->getMaxChannelCount()) {
Chris@0: 	    defaultChannels = p->getMinChannelCount();
Chris@0: 	}
Chris@0:     
Chris@0: 	response.defaultConfiguration = Vamp::HostExt::PluginConfiguration::fromPlugin
Chris@0: 	    (p,
Chris@0: 	     defaultChannels,
Chris@0: 	     p->getPreferredStepSize(),
Chris@0: 	     p->getPreferredBlockSize());
Chris@0:     
Chris@0: 	return response;
Chris@0:     }
Chris@0:     
Chris@0: private:
Chris@0:     std::string m_soname;
Chris@0: };
Chris@0: 
Chris@0: }
Chris@0: 
Chris@0: #endif
Chris@0: