libs/ardour/midi_patch_manager.cc

   1 /*
   2     Copyright (C) 2008 Hans Baier
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18     $Id$
  19 */
  20
  21 #include <boost/shared_ptr.hpp>
  22
  23 #include <glibmm/fileutils.h>
  24
  25 #include "pbd/file_utils.h"
  26 #include "pbd/error.h"
  27
  28 #include "ardour/session.h"
  29 #include "ardour/session_directory.h"
  30 #include "ardour/midi_patch_manager.h"
  31
  32 #include "ardour/search_paths.h"
  33
  34 #include "i18n.h"
  35
  36 using namespace std;
  37 using namespace ARDOUR;
  38 using namespace MIDI;
  39 using namespace MIDI::Name;
  40 using namespace PBD;
  41
  42 MidiPatchManager* MidiPatchManager::_manager = 0;
  43
  44 MidiPatchManager::MidiPatchManager ()
  45 {
  46         refresh ();
  47 }
  48
  49 void
  50 MidiPatchManager::set_session (Session* s)
  51 {
  52         SessionHandlePtr::set_session (s);
  53         refresh ();
  54         add_session_patches ();
  55 }
  56
  57 void
  58 MidiPatchManager::add_session_patches ()
  59 {
  60         if (!_session) {
  61                 return;
  62         }
  63
  64         std::string path_to_patches = _session->session_directory().midi_patch_path();
  65
  66         if (!Glib::file_test (path_to_patches, Glib::FILE_TEST_EXISTS)) {
  67                 return;
  68         }
  69
  70         assert (Glib::file_test (path_to_patches, Glib::FILE_TEST_IS_DIR));
  71
  72         vector<std::string> result;
  73
  74         find_files_matching_pattern (result, path_to_patches, "*.midnam");
  75
  76         info << "Loading " << result.size() << " MIDI patches from " << path_to_patches << endmsg;
  77
  78         for (vector<std::string>::iterator i = result.begin(); i != result.end(); ++i) {
  79                 boost::shared_ptr<MIDINameDocument> document(new MIDINameDocument(*i));
  80                 for (MIDINameDocument::MasterDeviceNamesList::const_iterator device =
  81                                         document->master_device_names_by_model().begin();
  82                                 device != document->master_device_names_by_model().end();
  83                                 ++device) {
  84                         //cerr << "got model " << device->first << endl;
  85                         // have access to the documents by model name
  86                         _documents[device->first] = document;
  87                         // build a list of all master devices from all documents
  88                         _master_devices_by_model[device->first] = device->second;
  89                         _all_models.insert(device->first);
  90                         const std::string& manufacturer = device->second->manufacturer();
  91                         if (_devices_by_manufacturer.find(manufacturer) == _devices_by_manufacturer.end()) {
  92                                 MIDINameDocument::MasterDeviceNamesList empty;
  93                                 _devices_by_manufacturer.insert(std::make_pair(manufacturer, empty));
  94                         }
  95                         _devices_by_manufacturer[manufacturer].insert(std::make_pair(device->first, device->second));
  96
  97                         // make sure there are no double model names
  98                         // TODO: handle this gracefully.
  99                         assert(_documents.count(device->first) == 1);
 100                         assert(_master_devices_by_model.count(device->first) == 1);
 101                 }
 102         }
 103 }
 104
 105 void
 106 MidiPatchManager::refresh()
 107 {
 108         _documents.clear();
 109         _master_devices_by_model.clear();
 110         _all_models.clear();
 111         _devices_by_manufacturer.clear();
 112
 113         Searchpath search_path = midi_patch_search_path ();
 114         vector<std::string> result;
 115
 116         find_files_matching_pattern (result, search_path, "*.midnam");
 117
 118         info << "Loading " << result.size() << " MIDI patches from " << search_path.to_string() << endmsg;
 119
 120         for (vector<std::string>::iterator i = result.begin(); i != result.end(); ++i) {
 121                 boost::shared_ptr<MIDINameDocument> document;
 122                 try {
 123                         document = boost::shared_ptr<MIDINameDocument>(new MIDINameDocument(*i));
 124                 } catch (...) {
 125                         error << "Error parsing MIDI patch file " << *i << endmsg;
 126                         continue;
 127                 }
 128                 for (MIDINameDocument::MasterDeviceNamesList::const_iterator device =
 129                              document->master_device_names_by_model().begin();
 130                      device != document->master_device_names_by_model().end();
 131                      ++device) {
 132                         if (_documents.find(device->first) != _documents.end()) {
 133                                 warning << string_compose(_("Duplicate MIDI device `%1' in `%2' ignored"),
 134                                                           device->first, *i)
 135                                         << endmsg;
 136                                 continue;
 137                         }
 138
 139                         _documents[device->first]               = document;
 140                         _master_devices_by_model[device->first] = device->second;
 141
 142                         _all_models.insert(device->first);
 143                         const std::string& manufacturer = device->second->manufacturer();
 144                         if (_devices_by_manufacturer.find(manufacturer) == _devices_by_manufacturer.end()) {
 145                                 MIDINameDocument::MasterDeviceNamesList empty;
 146                                 _devices_by_manufacturer.insert(std::make_pair(manufacturer, empty));
 147                         }
 148                         _devices_by_manufacturer[manufacturer].insert(std::make_pair(device->first, device->second));
 149                 }
 150         }
 151
 152         if (_session) {
 153                 add_session_patches ();
 154         }
 155 }
 156
 157 void
 158 MidiPatchManager::session_going_away ()
 159 {
 160         SessionHandlePtr::session_going_away ();
 161         _documents.clear();
 162         _master_devices_by_model.clear();
 163         _all_models.clear();
 164         _devices_by_manufacturer.clear();
 165 }