Remove unused header includes
[ardour.git] / libs / ardour / session.cc
index 1006c0f90bc66f445013235ffbcd7d723c8300f3..95d319b4d85af962310dffde7cc0acc46e436f55 100644 (file)
 
 #include "pbd/error.h"
 #include "pbd/boost_debug.h"
-#include "pbd/pathscanner.h"
 #include "pbd/stl_delete.h"
 #include "pbd/basename.h"
 #include "pbd/stacktrace.h"
 #include "pbd/file_utils.h"
 #include "pbd/convert.h"
-#include "pbd/strsplit.h"
 #include "pbd/unwind.h"
+#include "pbd/search_path.h"
 
 #include "ardour/amp.h"
 #include "ardour/analyser.h"
@@ -68,6 +67,7 @@
 #include "ardour/filename_extensions.h"
 #include "ardour/graph.h"
 #include "ardour/midiport_manager.h"
+#include "ardour/scene_changer.h"
 #include "ardour/midi_track.h"
 #include "ardour/midi_ui.h"
 #include "ardour/operations.h"
@@ -124,6 +124,7 @@ PBD::Signal0<void> Session::FeedbackDetected;
 PBD::Signal0<void> Session::SuccessfulGraphSort;
 PBD::Signal2<void,std::string,std::string> Session::VersionMismatch;
 
+const framecnt_t Session::bounce_chunk_size = 65536;
 static void clean_up_session_event (SessionEvent* ev) { delete ev; }
 const SessionEvent::RTeventCallback Session::rt_cleanup (clean_up_session_event);
 
@@ -136,6 +137,7 @@ Session::Session (AudioEngine &eng,
        : playlists (new SessionPlaylists)
        , _engine (eng)
        , process_function (&Session::process_with_events)
+       , _bounce_processing_active (false)
        , waiting_for_sync_offset (false)
        , _base_frame_rate (0)
        , _current_frame_rate (0)
@@ -260,6 +262,7 @@ Session::Session (AudioEngine &eng,
        ,  _speakers (new Speakers)
        , _order_hint (0)
        , ignore_route_processor_changes (false)
+       , _scene_changer (0)
        , _midi_ports (0)
        , _mmc (0)
 {
@@ -547,6 +550,8 @@ Session::destroy ()
        /* not strictly necessary, but doing it here allows the shared_ptr debugging to work */
        playlists.reset ();
 
+       delete _scene_changer; _scene_changer = 0;
+
        delete _mmc; _mmc = 0;
        delete _midi_ports; _midi_ports = 0;
        delete _locations; _locations = 0;
@@ -3877,7 +3882,7 @@ Session::update_locations_after_tempo_map_change (Locations::LocationList& loc)
 void
 Session::ensure_buffers (ChanCount howmany)
 {
-       BufferManager::ensure_buffers (howmany);
+       BufferManager::ensure_buffers (howmany, bounce_processing() ? bounce_chunk_size : 0);
 }
 
 void
@@ -4118,7 +4123,7 @@ Session::write_one_track (AudioTrack& track, framepos_t start, framepos_t end,
                          bool /*overwrite*/, vector<boost::shared_ptr<Source> >& srcs,
                          InterThreadInfo& itt, 
                          boost::shared_ptr<Processor> endpoint, bool include_endpoint,
-                         bool for_export)
+                         bool for_export, bool for_freeze)
 {
        boost::shared_ptr<Region> result;
        boost::shared_ptr<Playlist> playlist;
@@ -4129,6 +4134,7 @@ Session::write_one_track (AudioTrack& track, framepos_t start, framepos_t end,
        framepos_t position;
        framecnt_t this_chunk;
        framepos_t to_do;
+       framepos_t latency_skip;
        BufferSet buffers;
        SessionDirectory sdir(get_best_session_directory_for_new_source ());
        const string sound_dir = sdir.sound_path();
@@ -4143,12 +4149,28 @@ Session::write_one_track (AudioTrack& track, framepos_t start, framepos_t end,
                return result;
        }
 
-       const framecnt_t chunk_size = (256 * 1024)/4;
+       diskstream_channels = track.bounce_get_output_streams (diskstream_channels, endpoint,
+                       include_endpoint, for_export, for_freeze);
+
+       if (diskstream_channels.n_audio() < 1) {
+               error << _("Cannot write a range with no audio.") << endmsg;
+               return result;
+       }
 
        // block all process callback handling
 
        block_processing ();
 
+       {
+               // synchronize with AudioEngine::process_callback()
+               // make sure processing is not currently running
+               // and processing_blocked() is honored before
+               // acquiring thread buffers
+               Glib::Threads::Mutex::Lock lm (_engine.process_lock());
+       }
+
+       _bounce_processing_active = true;
+
        /* call tree *MUST* hold route_lock */
 
        if ((playlist = track.playlist()) == 0) {
@@ -4190,13 +4212,17 @@ Session::write_one_track (AudioTrack& track, framepos_t start, framepos_t end,
         */
 
        need_block_size_reset = true;
-       track.set_block_size (chunk_size);
+       track.set_block_size (bounce_chunk_size);
+       _engine.main_thread()->get_buffers ();
 
        position = start;
        to_do = len;
+       latency_skip = track.bounce_get_latency (endpoint, include_endpoint, for_export, for_freeze);
 
        /* create a set of reasonably-sized buffers */
-       buffers.ensure_buffers (DataType::AUDIO, max_proc.n_audio(), chunk_size);
+       for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
+               buffers.ensure_buffers(*t, max_proc.get(*t), bounce_chunk_size);
+       }
        buffers.set_count (max_proc);
 
        for (vector<boost::shared_ptr<Source> >::iterator src = srcs.begin(); src != srcs.end(); ++src) {
@@ -4207,28 +4233,56 @@ Session::write_one_track (AudioTrack& track, framepos_t start, framepos_t end,
 
        while (to_do && !itt.cancel) {
 
-               this_chunk = min (to_do, chunk_size);
+               this_chunk = min (to_do, bounce_chunk_size);
 
-               if (track.export_stuff (buffers, start, this_chunk, endpoint, include_endpoint, for_export)) {
+               if (track.export_stuff (buffers, start, this_chunk, endpoint, include_endpoint, for_export, for_freeze)) {
                        goto out;
                }
 
+               start += this_chunk;
+               to_do -= this_chunk;
+               itt.progress = (float) (1.0 - ((double) to_do / len));
+
+               if (latency_skip >= bounce_chunk_size) {
+                       latency_skip -= bounce_chunk_size;
+                       continue;
+               }
+
+               const framecnt_t current_chunk = this_chunk - latency_skip;
+
                uint32_t n = 0;
                for (vector<boost::shared_ptr<Source> >::iterator src=srcs.begin(); src != srcs.end(); ++src, ++n) {
                        boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(*src);
 
                        if (afs) {
-                               if (afs->write (buffers.get_audio(n).data(), this_chunk) != this_chunk) {
+                               if (afs->write (buffers.get_audio(n).data(latency_skip), current_chunk) != current_chunk) {
                                        goto out;
                                }
                        }
                }
+               latency_skip = 0;
+       }
 
-               start += this_chunk;
-               to_do -= this_chunk;
+       /* post-roll, pick up delayed processor output */
+       latency_skip = track.bounce_get_latency (endpoint, include_endpoint, for_export, for_freeze);
 
-               itt.progress = (float) (1.0 - ((double) to_do / len));
+       while (latency_skip && !itt.cancel) {
+               this_chunk = min (latency_skip, bounce_chunk_size);
+               latency_skip -= this_chunk;
+
+               buffers.silence (this_chunk, 0);
+               track.bounce_process (buffers, start, this_chunk, endpoint, include_endpoint, for_export, for_freeze);
 
+               uint32_t n = 0;
+               for (vector<boost::shared_ptr<Source> >::iterator src=srcs.begin(); src != srcs.end(); ++src, ++n) {
+                       boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(*src);
+
+                       if (afs) {
+                               if (afs->write (buffers.get_audio(n).data(), this_chunk) != this_chunk) {
+                                       goto out;
+                               }
+                       }
+               }
        }
 
        if (!itt.cancel) {
@@ -4280,8 +4334,10 @@ Session::write_one_track (AudioTrack& track, framepos_t start, framepos_t end,
                }
        }
 
+       _bounce_processing_active = false;
 
        if (need_block_size_reset) {
+               _engine.main_thread()->drop_buffers ();
                track.set_block_size (get_block_size());
        }
 
@@ -4572,18 +4628,18 @@ Session::end_time_changed (framepos_t old)
        }
 }
 
-string
+std::vector<std::string>
 Session::source_search_path (DataType type) const
 {
-       vector<string> s;
+       Searchpath sp;
 
        if (session_dirs.size() == 1) {
                switch (type) {
                case DataType::AUDIO:
-                       s.push_back (_session_dir->sound_path());
+                       sp.push_back (_session_dir->sound_path());
                        break;
                case DataType::MIDI:
-                       s.push_back (_session_dir->midi_path());
+                       sp.push_back (_session_dir->midi_path());
                        break;
                }
        } else {
@@ -4591,10 +4647,10 @@ Session::source_search_path (DataType type) const
                        SessionDirectory sdir (i->path);
                        switch (type) {
                        case DataType::AUDIO:
-                               s.push_back (sdir.sound_path());
+                               sp.push_back (sdir.sound_path());
                                break;
                        case DataType::MIDI:
-                               s.push_back (sdir.midi_path());
+                               sp.push_back (sdir.midi_path());
                                break;
                        }
                }
@@ -4603,49 +4659,30 @@ Session::source_search_path (DataType type) const
        if (type == DataType::AUDIO) {
                const string sound_path_2X = _session_dir->sound_path_2X();
                if (Glib::file_test (sound_path_2X, Glib::FILE_TEST_EXISTS|Glib::FILE_TEST_IS_DIR)) {
-                       if (find (s.begin(), s.end(), sound_path_2X) == s.end()) {
-                               s.push_back (sound_path_2X);
+                       if (find (sp.begin(), sp.end(), sound_path_2X) == sp.end()) {
+                               sp.push_back (sound_path_2X);
                        }
                }
        }
 
-       /* now check the explicit (possibly user-specified) search path
-        */
-
-       vector<string> dirs;
+       // now check the explicit (possibly user-specified) search path
 
        switch (type) {
        case DataType::AUDIO:
-               split (config.get_audio_search_path (), dirs, ':');
+               sp += Searchpath(config.get_audio_search_path ());
                break;
        case DataType::MIDI:
-               split (config.get_midi_search_path (), dirs, ':');
+               sp += Searchpath(config.get_midi_search_path ());
                break;
        }
 
-       for (vector<string>::iterator i = dirs.begin(); i != dirs.end(); ++i) {
-               if (find (s.begin(), s.end(), *i) == s.end()) {
-                       s.push_back (*i);
-               }
-       }
-       
-       string search_path;
-
-       for (vector<string>::iterator si = s.begin(); si != s.end(); ++si) {
-               if (!search_path.empty()) {
-                       search_path += ':';
-               }
-               search_path += *si;
-       }
-
-       return search_path;
+       return sp;
 }
 
 void
 Session::ensure_search_path_includes (const string& path, DataType type)
 {
-       string search_path;
-       vector<string> dirs;
+       Searchpath sp;
 
        if (path == ".") {
                return;
@@ -4653,16 +4690,14 @@ Session::ensure_search_path_includes (const string& path, DataType type)
 
        switch (type) {
        case DataType::AUDIO:
-               search_path = config.get_audio_search_path ();
+               sp += Searchpath(config.get_audio_search_path ());
                break;
        case DataType::MIDI:
-               search_path = config.get_midi_search_path ();
+               sp += Searchpath (config.get_midi_search_path ());
                break;
        }
 
-       split (search_path, dirs, ':');
-
-       for (vector<string>::iterator i = dirs.begin(); i != dirs.end(); ++i) {
+       for (vector<std::string>::iterator i = sp.begin(); i != sp.end(); ++i) {
                /* No need to add this new directory if it has the same inode as
                   an existing one; checking inode rather than name prevents duplicated
                   directories when we are using symlinks.
@@ -4674,18 +4709,14 @@ Session::ensure_search_path_includes (const string& path, DataType type)
                }
        }
 
-       if (!search_path.empty()) {
-               search_path += ':';
-       }
-
-       search_path += path;
+       sp += path;
 
        switch (type) {
        case DataType::AUDIO:
-               config.set_audio_search_path (search_path);
+               config.set_audio_search_path (sp.to_string());
                break;
        case DataType::MIDI:
-               config.set_midi_search_path (search_path);
+               config.set_midi_search_path (sp.to_string());
                break;
        }
 }