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 <pbd/error.h>
  22
  23 #include <ardour/source_factory.h>
  24 #include <ardour/sndfilesource.h>
  25 #include <ardour/smf_source.h>
  26 #include <ardour/destructive_filesource.h>
  27 #include <ardour/configuration.h>
  28
  29 #ifdef HAVE_COREAUDIO
  30 #include <ardour/coreaudiosource.h>
  31 #endif
  32
  33 #include "i18n.h"
  34
  35 using namespace ARDOUR;
  36 using namespace std;
  37 using namespace PBD;
  38
  39 sigc::signal<void,boost::shared_ptr<Source> > SourceFactory::SourceCreated;
  40
  41 int
  42 SourceFactory::setup_peakfile (boost::shared_ptr<Source> s)
  43 {
  44         boost::shared_ptr<AudioSource> as (boost::dynamic_pointer_cast<AudioSource> (s));
  45         if (as) {
  46                 if (as->setup_peakfile ()) {
  47                         error << string_compose("SourceFactory: could not set up peakfile for %1", as->name()) << endmsg;
  48                         return -1;
  49                 }
  50         }
  51
  52         return 0;
  53 }
  54
  55 #ifdef HAVE_COREAUDIO
  56 boost::shared_ptr<Source>
  57 SourceFactory::create (Session& s, const XMLNode& node)
  58 {
  59         DataType type = DataType::AUDIO;
  60         const XMLProperty* prop = node.property("type");
  61         if (prop) {
  62                 type = DataType(prop->value());
  63         }
  64
  65         if (type == DataType::AUDIO) {
  66
  67                 if (node.property (X_("destructive")) != 0) {
  68
  69                         boost::shared_ptr<Source> ret (new DestructiveFileSource (s, node));
  70                         if (setup_peakfile (ret)) {
  71                                 return boost::shared_ptr<Source>();
  72                         }
  73                         SourceCreated (ret);
  74                         return ret;
  75
  76                 } else {
  77
  78                 try {
  79                         boost::shared_ptr<Source> ret (new CoreAudioSource (s, node));
  80                         if (setup_peakfile (ret)) {
  81                                 return boost::shared_ptr<Source>();
  82                         }
  83                         SourceCreated (ret);
  84                         return ret;
  85
  86                 } catch (failed_constructor& err) {
  87
  88                         try {
  89                                 boost::shared_ptr<Source> ret (new CoreAudioSource (node));
  90                                 SourceCreated (ret);
  91                                 return ret;
  92                         }
  93
  94
  95                         catch (failed_constructor& err) {
  96
  97                                 boost::shared_ptr<Source> ret (new SndFileSource (s, node));
  98                                 if (setup_peakfile (ret)) {
  99                                         return boost::shared_ptr<Source>();
 100                                 }
 101                                 SourceCreated (ret);
 102                                 return ret;
 103                         }
 104                 }
 105
 106         } else if (type == DataType::MIDI) {
 107
 108                 boost::shared_ptr<Source> ret (new SMFSource (node));
 109                 SourceCreated (ret);
 110                 return ret;
 111
 112         }
 113
 114         return boost::shared_ptr<Source>();
 115 }
 116
 117 #else
 118
 119 boost::shared_ptr<Source>
 120 SourceFactory::create (Session& s, const XMLNode& node)
 121 {
 122         DataType type = DataType::AUDIO;
 123         const XMLProperty* prop = node.property("type");
 124         if (prop) {
 125                 type = DataType(prop->value());
 126         }
 127
 128         if (type == DataType::AUDIO) {
 129
 130                 if (node.property (X_("destructive")) != 0) {
 131
 132                         boost::shared_ptr<Source> ret (new DestructiveFileSource (s, node));
 133                         if (setup_peakfile (ret)) {
 134                                 return boost::shared_ptr<Source>();
 135                         }
 136                         SourceCreated (ret);
 137                         return ret;
 138
 139                 } else {
 140
 141                         boost::shared_ptr<Source> ret (new SndFileSource (s, node));
 142                         if (setup_peakfile (ret)) {
 143                                 return boost::shared_ptr<Source>();
 144                         }
 145                         SourceCreated (ret);
 146                         return ret;
 147                 }
 148
 149         } else if (type == DataType::MIDI) {
 150
 151                 boost::shared_ptr<Source> ret (new SMFSource (s, node));
 152                 SourceCreated (ret);
 153                 return ret;
 154
 155         }
 156
 157         return boost::shared_ptr<Source> ();
 158 }
 159
 160 #endif // HAVE_COREAUDIO
 161
 162 #ifdef HAVE_COREAUDIO
 163 boost::shared_ptr<Source>
 164 SourceFactory::createReadable (DataType type, Session& s, string idstr, AudioFileSource::Flag flags, bool announce)
 165 {
 166         if (type == DataType::AUDIO) {
 167                 if (flags & Destructive) {
 168                         boost::shared_ptr<Source> ret (new DestructiveFileSource (s, idstr, flags));
 169                         if (setup_peakfile (ret)) {
 170                                 return boost::shared_ptr<Source>();
 171                         }
 172                         if (announce) {
 173                                 SourceCreated (ret);
 174                         }
 175                         return ret;
 176
 177                         try {
 178                                 boost::shared_ptr<Source> ret (new CoreAudioSource (s, idstr, flags));
 179                                 if (announce) {
 180                                         SourceCreated (ret);
 181                                 }
 182                                 return ret;
 183
 184                         } catch (failed_constructor& err) {
 185                                 boost::shared_ptr<Source> ret (new SndFileSource (s, idstr, flags));
 186                                 if (announce) {
 187                                         SourceCreated (ret);
 188                                 }
 189                                 return ret;
 190                         }
 191
 192         } else if (type == DataType::MIDI) {
 193
 194                 boost::shared_ptr<Source> ret (new SMFSource (s, node));
 195                 SourceCreated (ret);
 196                 return ret;
 197
 198         }
 199
 200         return boost::shared_ptr<Source>();
 201 }
 202
 203 #else
 204
 205 boost::shared_ptr<Source>
 206 SourceFactory::createReadable (DataType type, Session& s, string idstr, AudioFileSource::Flag flags, bool announce)
 207 {
 208         if (type == DataType::AUDIO) {
 209
 210                 boost::shared_ptr<Source> ret (new SndFileSource (s, idstr, flags));
 211                 if (setup_peakfile (ret)) {
 212                         return boost::shared_ptr<Source>();
 213                 }
 214                 if (announce) {
 215                         SourceCreated (ret);
 216                 }
 217                 return ret;
 218
 219         } else if (type == DataType::MIDI) {
 220
 221                 boost::shared_ptr<Source> ret (new SMFSource (s, idstr, SMFSource::Flag(0))); // FIXME: flags?
 222                 if (announce) {
 223                         SourceCreated (ret);
 224                 }
 225                 return ret;
 226
 227         }
 228
 229         return boost::shared_ptr<Source> ();
 230 }
 231
 232 #endif // HAVE_COREAUDIO
 233
 234 boost::shared_ptr<Source>
 235 SourceFactory::createWritable (DataType type, Session& s, std::string path, bool destructive, nframes_t rate, bool announce)
 236 {
 237         /* this might throw failed_constructor(), which is OK */
 238         if (type == DataType::AUDIO) {
 239
 240                 if (destructive) {
 241                         boost::shared_ptr<Source> ret (new DestructiveFileSource (s, path,
 242                                                 Config->get_native_file_data_format(),
 243                                                 Config->get_native_file_header_format(),
 244                                                 rate));
 245                         if (setup_peakfile (ret)) {
 246                                 return boost::shared_ptr<Source>();
 247                         }
 248                         if (announce) {
 249                                 SourceCreated (ret);
 250                         }
 251                 } else {
 252                         boost::shared_ptr<Source> ret (new SndFileSource (s, path,
 253                                                 Config->get_native_file_data_format(),
 254                                                 Config->get_native_file_header_format(),
 255                                                 rate));
 256                         if (setup_peakfile (ret)) {
 257                                 return boost::shared_ptr<Source>();
 258                         }
 259                         if (announce) {
 260                                 SourceCreated (ret);
 261                         }
 262                         return ret;
 263                 }
 264
 265         } else if (type == DataType::MIDI) {
 266
 267                 boost::shared_ptr<Source> ret (new SMFSource (s, path));
 268                 SourceCreated (ret);
 269                 return ret;
 270
 271         }
 272
 273         return boost::shared_ptr<Source> ();
 274 }