c@40: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
c@40: 
c@40: /*
c@40:     Vampipe
c@40: 
c@40:     Centre for Digital Music, Queen Mary, University of London.
c@40:     Copyright 2006-2016 Chris Cannam and QMUL.
c@40:   
c@40:     Permission is hereby granted, free of charge, to any person
c@40:     obtaining a copy of this software and associated documentation
c@40:     files (the "Software"), to deal in the Software without
c@40:     restriction, including without limitation the rights to use, copy,
c@40:     modify, merge, publish, distribute, sublicense, and/or sell copies
c@40:     of the Software, and to permit persons to whom the Software is
c@40:     furnished to do so, subject to the following conditions:
c@40: 
c@40:     The above copyright notice and this permission notice shall be
c@40:     included in all copies or substantial portions of the Software.
c@40: 
c@40:     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
c@40:     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
c@40:     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
c@40:     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
c@40:     ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
c@40:     CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
c@40:     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
c@40: 
c@40:     Except as contained in this notice, the names of the Centre for
c@40:     Digital Music; Queen Mary, University of London; and Chris Cannam
c@40:     shall not be used in advertising or otherwise to promote the sale,
c@40:     use or other dealings in this Software without prior written
c@40:     authorization.
c@40: */
c@40: 
c@40: #ifndef VAMPIPE_COUNTING_PLUGIN_HANDLE_MAPPER_H
c@40: #define VAMPIPE_COUNTING_PLUGIN_HANDLE_MAPPER_H
c@40: 
c@40: #include "PluginHandleMapper.h"
c@40: 
c@40: #include <set>
c@40: #include <map>
c@40: 
c@40: namespace vampipe {
c@40: 
c@40: //!!! NB not thread-safe at present, should it be?
c@40: class CountingPluginHandleMapper : public PluginHandleMapper
c@40: {
c@40: public:
c@40:     CountingPluginHandleMapper() : m_nextHandle(1) { }
c@40: 
c@40:     void addPlugin(Vamp::Plugin *p) {
c@40: 	if (m_rplugins.find(p) == m_rplugins.end()) {
c@40: 	    int32_t h = m_nextHandle++;
c@40: 	    m_plugins[h] = p;
c@40: 	    m_rplugins[p] = h;
c@40: 	}
c@40:     }
c@40: 
c@40:     void removePlugin(int32_t h) {
c@40: 	if (m_plugins.find(h) == m_plugins.end()) {
c@40: 	    throw NotFound();
c@40: 	}
c@40: 	Vamp::Plugin *p = m_plugins[h];
c@40: 	m_plugins.erase(h);
c@40: 	if (isConfigured(h)) {
c@40: 	    m_configuredPlugins.erase(h);
c@40: 	    m_channelCounts.erase(h);
c@40: 	}
c@40: 	m_rplugins.erase(p);
c@40:     }
c@40:     
c@40:     int32_t pluginToHandle(Vamp::Plugin *p) const {
c@40: 	if (m_rplugins.find(p) == m_rplugins.end()) {
c@40: 	    throw NotFound();
c@40: 	}
c@40: 	return m_rplugins.at(p);
c@40:     }
c@40:     
c@40:     Vamp::Plugin *handleToPlugin(int32_t h) const {
c@40: 	if (m_plugins.find(h) == m_plugins.end()) {
c@40: 	    throw NotFound();
c@40: 	}
c@40: 	return m_plugins.at(h);
c@40:     }
c@40: 
c@40:     bool isConfigured(int32_t h) const {
c@40: 	return m_configuredPlugins.find(h) != m_configuredPlugins.end();
c@40:     }
c@40: 
c@40:     void markConfigured(int32_t h, int channelCount, int blockSize) {
c@40: 	m_configuredPlugins.insert(h);
c@40: 	m_channelCounts[h] = channelCount;
c@40: 	m_blockSizes[h] = blockSize;
c@40:     }
c@40: 
c@40:     int getChannelCount(int32_t h) const {
c@40: 	if (m_channelCounts.find(h) == m_channelCounts.end()) {
c@40: 	    throw NotFound();
c@40: 	}
c@40: 	return m_channelCounts.at(h);
c@40:     }
c@40: 
c@40:     int getBlockSize(int32_t h) const {
c@40: 	if (m_blockSizes.find(h) == m_blockSizes.end()) {
c@40: 	    throw NotFound();
c@40: 	}
c@40: 	return m_blockSizes.at(h);
c@40:     }
c@40:     
c@40: private:
c@40:     int32_t m_nextHandle; // NB plugin handle type must fit in JSON number
c@40:     std::map<uint32_t, Vamp::Plugin *> m_plugins;
c@40:     std::map<Vamp::Plugin *, uint32_t> m_rplugins;
c@40:     std::set<uint32_t> m_configuredPlugins;
c@40:     std::map<uint32_t, int> m_channelCounts;
c@40:     std::map<uint32_t, int> m_blockSizes;
c@40: };
c@40: 
c@40: }
c@40: 
c@40: #endif