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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Vamp
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5
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6 An API for audio analysis and feature extraction plugins.
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7
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8 Centre for Digital Music, Queen Mary, University of London.
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9 Copyright 2006 Chris Cannam.
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10
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11 Permission is hereby granted, free of charge, to any person
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12 obtaining a copy of this software and associated documentation
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13 files (the "Software"), to deal in the Software without
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14 restriction, including without limitation the rights to use, copy,
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15 modify, merge, publish, distribute, sublicense, and/or sell copies
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16 of the Software, and to permit persons to whom the Software is
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17 furnished to do so, subject to the following conditions:
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18
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19 The above copyright notice and this permission notice shall be
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20 included in all copies or substantial portions of the Software.
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21
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22 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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23 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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24 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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25 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
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26 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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27 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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28 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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29
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30 Except as contained in this notice, the names of the Centre for
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31 Digital Music; Queen Mary, University of London; and Chris Cannam
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32 shall not be used in advertising or otherwise to promote the sale,
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33 use or other dealings in this Software without prior written
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34 authorization.
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35 */
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36
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37 #ifndef _VAMP_PLUGIN_LOADER_H_
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38 #define _VAMP_PLUGIN_LOADER_H_
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39
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40 #include <vector>
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41 #include <string>
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42 #include <map>
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43
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44 #include "PluginWrapper.h"
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45
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46 namespace Vamp {
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47
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48 class Plugin;
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49
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50 namespace HostExt {
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51
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52 class PluginLoader
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53 {
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54 public:
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55 static PluginLoader *getInstance();
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56
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57 typedef std::string PluginKey;
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58 typedef std::vector<PluginKey> PluginKeyList;
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59 typedef std::vector<std::string> PluginCategoryHierarchy;
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60
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61 PluginKeyList listPlugins(); //!!! pass in version number?
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62
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63 PluginKey composePluginKey(std::string libraryName, std::string identifier);
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64
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65 Plugin *loadPlugin(PluginKey plugin, float inputSampleRate);
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66
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67 PluginCategoryHierarchy getPluginCategory(PluginKey plugin);
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68
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69 std::string getLibraryPathForPlugin(PluginKey plugin);
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70
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71 protected:
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72 PluginLoader();
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73 virtual ~PluginLoader();
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74
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75 class PluginDeletionNotifyAdapter : public PluginWrapper {
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76 public:
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77 PluginDeletionNotifyAdapter(Plugin *plugin, PluginLoader *loader);
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78 virtual ~PluginDeletionNotifyAdapter();
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79 protected:
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80 PluginLoader *m_loader;
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81 };
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82
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83 virtual void pluginDeleted(PluginDeletionNotifyAdapter *adapter);
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84
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85 std::map<PluginKey, std::string> m_pluginLibraryNameMap;
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86 void generateLibraryMap();
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87
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88 std::map<PluginKey, PluginCategoryHierarchy> m_taxonomy;
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89 void generateTaxonomy();
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90
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91 std::map<Plugin *, void *> m_pluginLibraryHandleMap;
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92
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93 void *loadLibrary(std::string path);
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94 void unloadLibrary(void *handle);
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95 void *lookupInLibrary(void *handle, const char *symbol);
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96
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97 std::string splicePath(std::string a, std::string b);
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98 std::vector<std::string> listFiles(std::string dir, std::string ext);
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99
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100 static PluginLoader *m_instance;
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101 };
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102
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103 }
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104
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105 }
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106
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107 #endif
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108
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