PluginInfo::type added to copy constructor. But why is the copy constructor defined...
[ardour.git] / libs / ardour / source_factory.cc
index c7539a1370f416a285f0363d472ca396b5b5798c..a0d0edc333787a865753404966349e26e602bfe6 100644 (file)
     $Id$
 */
 
+#include <glibmm/thread.h>
+
+#include <pbd/error.h>
+#include <pbd/convert.h>
+#include <pbd/pthread_utils.h>
+#include <pbd/stacktrace.h>
+
 #include <ardour/source_factory.h>
 #include <ardour/sndfilesource.h>
-#include <ardour/destructive_filesource.h>
+#include <ardour/silentfilesource.h>
 #include <ardour/configuration.h>
 
-#ifdef HAVE_COREAUDIO
+#ifdef  HAVE_COREAUDIO
+#define USE_COREAUDIO_FOR_FILES
+#endif
+
+#ifdef USE_COREAUDIO_FOR_FILES
 #include <ardour/coreaudiosource.h>
 #endif
 
+
 #include "i18n.h"
 
 using namespace ARDOUR;
 using namespace std;
+using namespace PBD;
+using namespace sigc;
 
 sigc::signal<void,boost::shared_ptr<Source> > SourceFactory::SourceCreated;
+Glib::Cond* SourceFactory::PeaksToBuild;
+Glib::StaticMutex SourceFactory::peak_building_lock = GLIBMM_STATIC_MUTEX_INIT;
+std::list<boost::weak_ptr<AudioSource> > SourceFactory::files_with_peaks;
 
-#ifdef HAVE_COREAUDIO
-boost::shared_ptr<Source>
-SourceFactory::create (Session& s, const XMLNode& node)
+static void 
+peak_thread_work ()
 {
-       if (node.property (X_("destructive")) != 0) {
-               
-               boost::shared_ptr<Source> ret (new DestructiveFileSource (s, node));
-               SourceCreated (ret);
-               return ret;
-               
-       } else {
-               
-               try {
-                       boost::shared_ptr<Source> ret (new CoreAudioSource (s, node));
-                       SourceCreated (ret);
-                       return ret;
-               } 
+       PBD::notify_gui_about_thread_creation (pthread_self(), string ("peakbuilder-") + to_string (pthread_self(), std::dec));
+
+       while (true) {
+
+               SourceFactory::peak_building_lock.lock ();
                
+         wait:
+               if (SourceFactory::files_with_peaks.empty()) {
+                       SourceFactory::PeaksToBuild->wait (SourceFactory::peak_building_lock);
+               }
+
+               if (SourceFactory::files_with_peaks.empty()) {
+                       goto wait;
+               }
+
+               boost::shared_ptr<AudioSource> as (SourceFactory::files_with_peaks.front().lock());
+               SourceFactory::files_with_peaks.pop_front ();
+               SourceFactory::peak_building_lock.unlock ();
                
-               catch (failed_constructor& err) {
-                       boost::shared_ptr<Source> ret (new SndFileSource (s, node));
-                       SourceCreated (ret);
-                       return ret;
+               if (!as) {
+                       continue;
                }
+
+               as->setup_peakfile ();
        }
-       
-       return boost::shared_ptr<Source>();
 }
 
-#else
-
-boost::shared_ptr<Source>
-SourceFactory::create (Session& s, const XMLNode& node)
+void
+SourceFactory::init ()
 {
-       if (node.property (X_("destructive")) != 0) {
-               
-               boost::shared_ptr<Source> ret (new DestructiveFileSource (s, node));
-               SourceCreated (ret);
-               return ret;
-               
-       } else {
-               
-               boost::shared_ptr<Source> ret (new SndFileSource (s, node));
-               SourceCreated (ret);
-               return ret;
+       PeaksToBuild = new Glib::Cond();
+
+       for (int n = 0; n < 2; ++n) {
+               Glib::Thread::create (sigc::ptr_fun (::peak_thread_work), false);
        }
 }
 
-#endif // HAVE_COREAUDIO
-
-#ifdef HAVE_COREAUDIO
-boost::shared_ptr<Source>
-SourceFactory::createReadable (Session& s, string idstr, AudioFileSource::Flag flags, bool announce)
+int
+SourceFactory::setup_peakfile (boost::shared_ptr<Source> s, bool async)
 {
-       if (flags & Destructive) {
-               boost::shared_ptr<Source> ret (new DestructiveFileSource (s, idstr, flags));
-               if (announce) {
-                       SourceCreated (ret);
+       boost::shared_ptr<AudioSource> as (boost::dynamic_pointer_cast<AudioSource> (s));
+
+       if (as) {
+
+               if (async) {
+
+                       Glib::Mutex::Lock lm (peak_building_lock);
+                       files_with_peaks.push_back (boost::weak_ptr<AudioSource> (as));
+                       PeaksToBuild->broadcast ();
+
+               } else {
+
+                       if (as->setup_peakfile ()) {
+                               error << string_compose("SourceFactory: could not set up peakfile for %1", as->name()) << endmsg;
+                               return -1;
+                       }
                }
-               return ret;
        }
 
+       return 0;
+}
+
+boost::shared_ptr<Source>
+SourceFactory::createSilent (Session& s, const XMLNode& node, nframes_t nframes, float sr)
+{
+       boost::shared_ptr<Source> ret (new SilentFileSource (s, node, nframes, sr));
+       // no analysis data - the file is non-existent
+       SourceCreated (ret);
+       return ret;
+}
+
+boost::shared_ptr<Source>
+SourceFactory::create (Session& s, const XMLNode& node, bool defer_peaks)
+{
        try {
-               boost::shared_ptr<Source> ret (new CoreAudioSource (s, idstr, flags));
-               if (announce) {
-                       SourceCreated (ret);
+               boost::shared_ptr<Source> ret (new SndFileSource (s, node));
+               if (setup_peakfile (ret, defer_peaks)) {
+                       return boost::shared_ptr<Source>();
                }
+               ret->check_for_analysis_data_on_disk ();
+               SourceCreated (ret);
                return ret;
-       }
+       } 
+
+
+       catch (failed_constructor& err) {       
+
+#ifdef USE_COREAUDIO_FOR_FILES
 
-       catch (failed_constructor& err) {
-               boost::shared_ptr<Source> ret (new SndFileSource (s, idstr, flags));
-               if (announce) {
-                       SourceCreated (ret);
+               /* this is allowed to throw */
+
+               boost::shared_ptr<Source> ret (new CoreAudioSource (s, node));
+               if (setup_peakfile (ret, defer_peaks)) {
+                       return boost::shared_ptr<Source>();
                }
+               ret->check_for_analysis_data_on_disk ();
+               SourceCreated (ret);
                return ret;
+#else
+               throw; // rethrow 
+#endif
+
        }
 
-       return boost::shared_ptr<Source>();
+       return boost::shared_ptr<Source>(); // keep stupid gcc happy
 }
 
-#else
-
 boost::shared_ptr<Source>
-SourceFactory::createReadable (Session& s, string idstr, AudioFileSource::Flag flags, bool announce)
+SourceFactory::createReadable (Session& s, string path, int chn, AudioFileSource::Flag flags, bool announce, bool defer_peaks)
 {
-       boost::shared_ptr<Source> ret (new SndFileSource (s, idstr, flags));
-       if (announce) {
-               SourceCreated (ret);
+       if (!(flags & Destructive)) {
+
+               try {
+
+                       boost::shared_ptr<Source> ret (new SndFileSource (s, path, chn, flags));
+                       if (setup_peakfile (ret, defer_peaks)) {
+                               return boost::shared_ptr<Source>();
+                       }
+                       ret->check_for_analysis_data_on_disk ();
+                       if (announce) {
+                               SourceCreated (ret);
+                       }
+                       return ret;
+               }
+               
+               catch (failed_constructor& err) {
+
+                       /* this is allowed to throw */
+
+#ifdef USE_COREAUDIO_FOR_FILES
+
+                       boost::shared_ptr<Source> ret (new CoreAudioSource (s, path, chn, flags));
+                       if (setup_peakfile (ret, defer_peaks)) {
+                               return boost::shared_ptr<Source>();
+                       }
+                       ret->check_for_analysis_data_on_disk ();
+                       if (announce) {
+                               SourceCreated (ret);
+                       }
+                       return ret;
+
+#else
+                       throw; // rethrow
+#endif
+               }
+
+       } else {
+
        }
-       return ret;
-}
 
-#endif // HAVE_COREAUDIO
+       return boost::shared_ptr<Source>();
+}
 
 boost::shared_ptr<Source>
-SourceFactory::createWritable (Session& s, std::string path, bool destructive, jack_nframes_t rate, bool announce)
+SourceFactory::createWritable (Session& s, std::string path, bool destructive, nframes_t rate, bool announce, bool defer_peaks)
 {
        /* this might throw failed_constructor(), which is OK */
-       
-       if (destructive) {
-               boost::shared_ptr<Source> ret (new DestructiveFileSource (s, path,
-                                                                         Config->get_native_file_data_format(),
-                                                                         Config->get_native_file_header_format(),
-                                                                         rate));
-               if (announce) {
-                       SourceCreated (ret);
-               }
-               return ret;
-               
-       } else {
-               boost::shared_ptr<Source> ret (new SndFileSource (s, path, 
-                                                                 Config->get_native_file_data_format(),
-                                                                 Config->get_native_file_header_format(),
-                                                                 rate));
-               if (announce) {
-                       SourceCreated (ret);
-               }
-               return ret;
+
+       boost::shared_ptr<Source> ret (new SndFileSource 
+                                      (s, path, 
+                                       Config->get_native_file_data_format(),
+                                       Config->get_native_file_header_format(),
+                                       rate,
+                                       (destructive ? AudioFileSource::Flag (SndFileSource::default_writable_flags | AudioFileSource::Destructive) :
+                                        SndFileSource::default_writable_flags)));      
+
+       if (setup_peakfile (ret, defer_peaks)) {
+               return boost::shared_ptr<Source>();
        }
+
+       // no analysis data - this is a new file
+
+       if (announce) {
+               SourceCreated (ret);
+       }
+       return ret;
 }