cannam@56: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
cannam@56: 
cannam@56: /*
cannam@56:     Vamp
cannam@56: 
cannam@56:     An API for audio analysis and feature extraction plugins.
cannam@56: 
cannam@56:     Centre for Digital Music, Queen Mary, University of London.
cannam@56:     Copyright 2006 Chris Cannam.
cannam@56:   
cannam@56:     Permission is hereby granted, free of charge, to any person
cannam@56:     obtaining a copy of this software and associated documentation
cannam@56:     files (the "Software"), to deal in the Software without
cannam@56:     restriction, including without limitation the rights to use, copy,
cannam@56:     modify, merge, publish, distribute, sublicense, and/or sell copies
cannam@56:     of the Software, and to permit persons to whom the Software is
cannam@56:     furnished to do so, subject to the following conditions:
cannam@56: 
cannam@56:     The above copyright notice and this permission notice shall be
cannam@56:     included in all copies or substantial portions of the Software.
cannam@56: 
cannam@56:     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
cannam@56:     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
cannam@56:     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
cannam@56:     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
cannam@56:     ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
cannam@56:     CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
cannam@56:     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
cannam@56: 
cannam@56:     Except as contained in this notice, the names of the Centre for
cannam@56:     Digital Music; Queen Mary, University of London; and Chris Cannam
cannam@56:     shall not be used in advertising or otherwise to promote the sale,
cannam@56:     use or other dealings in this Software without prior written
cannam@56:     authorization.
cannam@56: */
cannam@56: 
cannam@56: #ifndef _VAMP_PLUGIN_LOADER_H_
cannam@56: #define _VAMP_PLUGIN_LOADER_H_
cannam@56: 
cannam@56: #include <vector>
cannam@56: #include <string>
cannam@56: #include <map>
cannam@56: 
cannam@59: #include "PluginWrapper.h"
cannam@59: 
cannam@56: namespace Vamp {
cannam@56: 
cannam@56: class Plugin;
cannam@56: 
cannam@59: namespace HostExt {
cannam@59: 
cannam@56: class PluginLoader
cannam@56: {
cannam@56: public:
cannam@59:     static PluginLoader *getInstance();
cannam@56: 
cannam@56:     typedef std::string PluginKey;
cannam@60:     typedef std::vector<PluginKey> PluginKeyList;
cannam@57:     typedef std::vector<std::string> PluginCategoryHierarchy;
cannam@56: 
cannam@60:     PluginKeyList listPlugins(); //!!! pass in version number?
cannam@56: 
cannam@59:     PluginKey composePluginKey(std::string libraryName, std::string identifier);
cannam@59: 
cannam@59:     Plugin *loadPlugin(PluginKey plugin, float inputSampleRate);
cannam@56: 
cannam@57:     PluginCategoryHierarchy getPluginCategory(PluginKey plugin);
cannam@57: 
cannam@57:     std::string getLibraryPathForPlugin(PluginKey plugin);
cannam@56: 
cannam@56: protected:
cannam@59:     PluginLoader();
cannam@59:     virtual ~PluginLoader();
cannam@59: 
cannam@59:     class PluginDeletionNotifyAdapter : public PluginWrapper {
cannam@59:     public:
cannam@59:         PluginDeletionNotifyAdapter(Plugin *plugin, PluginLoader *loader);
cannam@59:         virtual ~PluginDeletionNotifyAdapter();
cannam@59:     protected:
cannam@59:         PluginLoader *m_loader;
cannam@59:     };
cannam@59: 
cannam@59:     virtual void pluginDeleted(PluginDeletionNotifyAdapter *adapter);
cannam@59: 
cannam@59:     std::map<PluginKey, std::string> m_pluginLibraryNameMap;
cannam@59:     void generateLibraryMap();
cannam@59: 
cannam@57:     std::map<PluginKey, PluginCategoryHierarchy> m_taxonomy;
cannam@57:     void generateTaxonomy();
cannam@59: 
cannam@59:     std::map<Plugin *, void *> m_pluginLibraryHandleMap;
cannam@59: 
cannam@59:     void *loadLibrary(std::string path);
cannam@59:     void unloadLibrary(void *handle);
cannam@59:     void *lookupInLibrary(void *handle, const char *symbol);
cannam@59: 
cannam@59:     std::string splicePath(std::string a, std::string b);
cannam@59:     std::vector<std::string> listFiles(std::string dir, std::string ext);
cannam@59: 
cannam@59:     static PluginLoader *m_instance;
cannam@56: };
cannam@56: 
cannam@56: }
cannam@56: 
cannam@59: }
cannam@56: 
cannam@56: #endif
cannam@56: