libs/ardour/source_factory.cc

   1 /*
   2     Copyright (C) 2000-2006 Paul Davis
   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 <ardour/source_factory.h>
  22 #include <ardour/sndfilesource.h>
  23 #include <ardour/smf_source.h>
  24 #include <ardour/destructive_filesource.h>
  25 #include <ardour/configuration.h>
  26
  27 #ifdef HAVE_COREAUDIO
  28 #include <ardour/coreaudiosource.h>
  29 #endif
  30
  31 #include "i18n.h"
  32
  33 using namespace ARDOUR;
  34 using namespace std;
  35
  36 sigc::signal<void,boost::shared_ptr<Source> > SourceFactory::SourceCreated;
  37
  38 #ifdef HAVE_COREAUDIO
  39 boost::shared_ptr<Source>
  40 SourceFactory::create (Session& s, const XMLNode& node)
  41 {
  42         DataType type = DataType::AUDIO;
  43         const XMLProperty* prop = node.property("type");
  44         if (prop) {
  45                 type = DataType(prop->value());
  46         }
  47
  48         if (type == DataType::AUDIO) {
  49
  50                 if (node.property (X_("destructive")) != 0) {
  51
  52                         boost::shared_ptr<Source> ret (new DestructiveFileSource (s, node));
  53                         SourceCreated (ret);
  54                         return ret;
  55
  56                 } else {
  57
  58                 try {
  59                         boost::shared_ptr<Source> ret (new CoreAudioSource (s, node));
  60                         SourceCreated (ret);
  61                         return ret;
  62
  63                 } catch (failed_constructor& err) {
  64
  65                         try {
  66                                 boost::shared_ptr<Source> ret (new CoreAudioSource (node));
  67                                 SourceCreated (ret);
  68                                 return ret;
  69                         }
  70
  71
  72                         catch (failed_constructor& err) {
  73                                 boost::shared_ptr<Source> ret (new SndFileSource (node));
  74                                 SourceCreated (ret);
  75                                 return ret;
  76                         }
  77                 }
  78
  79         } else if (type == DataType::MIDI) {
  80
  81                 boost::shared_ptr<Source> ret (new SMFSource (node));
  82                 SourceCreated (ret);
  83                 return ret;
  84
  85         }
  86
  87         return boost::shared_ptr<Source>();
  88 }
  89
  90 #else
  91
  92 boost::shared_ptr<Source>
  93 SourceFactory::create (Session& s, const XMLNode& node)
  94 {
  95         DataType type = DataType::AUDIO;
  96         const XMLProperty* prop = node.property("type");
  97         if (prop) {
  98                 type = DataType(prop->value());
  99         }
 100
 101         if (type == DataType::AUDIO) {
 102
 103                 if (node.property (X_("destructive")) != 0) {
 104
 105                         boost::shared_ptr<Source> ret (new DestructiveFileSource (s, node));
 106                         SourceCreated (ret);
 107                         return ret;
 108
 109                 } else {
 110
 111                         boost::shared_ptr<Source> ret (new SndFileSource (s, node));
 112                         SourceCreated (ret);
 113                         return ret;
 114                 }
 115
 116         } else if (type == DataType::MIDI) {
 117
 118                 boost::shared_ptr<Source> ret (new SMFSource (s, node));
 119                 SourceCreated (ret);
 120                 return ret;
 121
 122         }
 123
 124         return boost::shared_ptr<Source> ();
 125 }
 126
 127 #endif // HAVE_COREAUDIO
 128
 129 #ifdef HAVE_COREAUDIO
 130 boost::shared_ptr<Source>
 131 SourceFactory::createReadable (DataType type, Session& s, string idstr, AudioFileSource::Flag flags, bool announce)
 132 {
 133         if (type == DataType::AUDIO) {
 134                 if (flags & Destructive) {
 135                         boost::shared_ptr<Source> ret (new DestructiveFileSource (s, idstr, flags));
 136                         if (announce) {
 137                                 SourceCreated (ret);
 138                         }
 139                         return ret;
 140
 141                         try {
 142                                 boost::shared_ptr<Source> ret (new CoreAudioSource (s, idstr, flags));
 143                                 if (announce) {
 144                                         SourceCreated (ret);
 145                                 }
 146                                 return ret;
 147
 148                         } catch (failed_constructor& err) {
 149                                 boost::shared_ptr<Source> ret (new SndFileSource (s, idstr, flags));
 150                                 if (announce) {
 151                                         SourceCreated (ret);
 152                                 }
 153                                 return ret;
 154                         }
 155
 156         } else if (type == DataType::MIDI) {
 157
 158                 boost::shared_ptr<Source> ret (new SMFSource (s, node));
 159                 SourceCreated (ret);
 160                 return ret;
 161
 162         }
 163
 164         return boost::shared_ptr<Source>();
 165 }
 166
 167 #else
 168
 169 boost::shared_ptr<Source>
 170 SourceFactory::createReadable (DataType type, Session& s, string idstr, AudioFileSource::Flag flags, bool announce)
 171 {
 172         if (type == DataType::AUDIO) {
 173
 174                 boost::shared_ptr<Source> ret (new SndFileSource (s, idstr, flags));
 175                 if (announce) {
 176                         SourceCreated (ret);
 177                 }
 178                 return ret;
 179
 180         } else if (type == DataType::MIDI) {
 181
 182                 boost::shared_ptr<Source> ret (new SMFSource (s, idstr, SMFSource::Flag(0))); // FIXME: flags?
 183                 if (announce) {
 184                         SourceCreated (ret);
 185                 }
 186                 return ret;
 187
 188         }
 189
 190         return boost::shared_ptr<Source> ();
 191 }
 192
 193 #endif // HAVE_COREAUDIO
 194
 195 boost::shared_ptr<Source>
 196 SourceFactory::createWritable (DataType type, Session& s, std::string path, bool destructive, jack_nframes_t rate, bool announce)
 197 {
 198         /* this might throw failed_constructor(), which is OK */
 199
 200         if (type == DataType::AUDIO) {
 201                 if (destructive) {
 202
 203                         boost::shared_ptr<Source> ret (new DestructiveFileSource (s, path,
 204                                                 Config->get_native_file_data_format(),
 205                                                 Config->get_native_file_header_format(),
 206                                                 rate));
 207                         if (announce) {
 208                                 SourceCreated (ret);
 209                         }
 210                         return ret;
 211
 212                 } else {
 213
 214                         boost::shared_ptr<Source> ret (new SndFileSource (s, path,
 215                                                 Config->get_native_file_data_format(),
 216                                                 Config->get_native_file_header_format(),
 217                                                 rate));
 218                         if (announce) {
 219                                 SourceCreated (ret);
 220                         }
 221                         return ret;
 222
 223                 }
 224
 225         } else if (type == DataType::MIDI) {
 226
 227                 boost::shared_ptr<Source> ret (new SMFSource (s, path));
 228                 SourceCreated (ret);
 229                 return ret;
 230
 231         }
 232
 233         return boost::shared_ptr<Source> ();
 234 }