always check_dependents() after a relayer() (useful for LaterHigher model), don't...
[ardour.git] / libs / ardour / audio_diskstream.cc
index f1d6cb2db8de61d5dbe8ebcb106e154eb814b8a2..5f682789ef1bbf9def5fb3afba8b1cd4ff68734c 100644 (file)
@@ -249,7 +249,7 @@ AudioDiskstream::non_realtime_input_change ()
        /* now refill channel buffers */
 
        if (speed() != 1.0f || speed() != -1.0f) {
-               seek ((jack_nframes_t) (_session.transport_frame() * (double) speed()));
+               seek ((nframes_t) (_session.transport_frame() * (double) speed()));
        } else {
                seek (_session.transport_frame());
        }
@@ -374,35 +374,35 @@ AudioDiskstream::setup_destructive_playlist ()
 
        /* a single full-sized region */
 
-       cerr << "setup DS using " << srcs.front()->natural_position () << endl;
-
-       boost::shared_ptr<Region> region (RegionFactory::create (srcs, 0, max_frames, _name));
+       boost::shared_ptr<Region> region (RegionFactory::create (srcs, 0, max_frames - srcs.front()->natural_position(), _name));
        _playlist->add_region (region, srcs.front()->natural_position());               
 }
 
 void
 AudioDiskstream::use_destructive_playlist ()
 {
-       /* this is called from the XML-based constructor. when its done,
+       /* this is called from the XML-based constructor or ::set_destructive. when called,
           we already have a playlist and a region, but we need to
           set up our sources for write. we use the sources associated 
           with the (presumed single, full-extent) region.
        */
 
-       Playlist::RegionList* rl = _playlist->regions_at (0);
+       boost::shared_ptr<Region> rp = _playlist->find_next_region (_session.current_start_frame(), Start, 1);
 
-       if (rl->empty()) {
+       if (!rp) {
                reset_write_sources (false, true);
                return;
        }
 
-       boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (rl->front());
+       boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (rp);
 
        if (region == 0) {
                throw failed_constructor();
        }
 
-       delete rl;
+       /* be sure to stretch the region out to the maximum length */
+
+       region->set_length (max_frames - region->position(), this);
 
        uint32_t n;
        ChannelList::iterator chan;
@@ -411,13 +411,17 @@ AudioDiskstream::use_destructive_playlist ()
                (*chan).write_source = boost::dynamic_pointer_cast<AudioFileSource>(region->source (n));
                assert((*chan).write_source);
                (*chan).write_source->set_allow_remove_if_empty (false);
+
+               /* this might be false if we switched modes, so force it */
+
+               (*chan).write_source->set_destructive (true);
        }
 
        /* the source list will never be reset for a destructive track */
 }
 
 void
-AudioDiskstream::check_record_status (jack_nframes_t transport_frame, jack_nframes_t nframes, bool can_record)
+AudioDiskstream::check_record_status (nframes_t transport_frame, nframes_t nframes, bool can_record)
 {
        int possibly_recording;
        int rolling;
@@ -541,13 +545,13 @@ AudioDiskstream::check_record_status (jack_nframes_t transport_frame, jack_nfram
 }
 
 int
-AudioDiskstream::process (jack_nframes_t transport_frame, jack_nframes_t nframes, jack_nframes_t offset, bool can_record, bool rec_monitors_input)
+AudioDiskstream::process (nframes_t transport_frame, nframes_t nframes, nframes_t offset, bool can_record, bool rec_monitors_input)
 {
        uint32_t n;
        ChannelList::iterator c;
        int ret = -1;
-       jack_nframes_t rec_offset = 0;
-       jack_nframes_t rec_nframes = 0;
+       nframes_t rec_offset = 0;
+       nframes_t rec_nframes = 0;
        bool nominally_recording;
        bool re = record_enabled ();
        bool collect_playback = false;
@@ -666,7 +670,7 @@ AudioDiskstream::process (jack_nframes_t transport_frame, jack_nframes_t nframes
 
                        } else {
 
-                               jack_nframes_t total = chan.capture_vector.len[0] + chan.capture_vector.len[1];
+                               nframes_t total = chan.capture_vector.len[0] + chan.capture_vector.len[1];
 
                                if (rec_nframes > total) {
                                        DiskOverrun ();
@@ -674,7 +678,7 @@ AudioDiskstream::process (jack_nframes_t transport_frame, jack_nframes_t nframes
                                }
 
                                Sample* buf = _io->input (n)->get_buffer (nframes) + offset;
-                               jack_nframes_t first = chan.capture_vector.len[0];
+                               nframes_t first = chan.capture_vector.len[0];
 
                                memcpy (chan.capture_wrap_buffer, buf, sizeof (Sample) * first);
                                memcpy (chan.capture_vector.buf[0], buf, sizeof (Sample) * first);
@@ -737,12 +741,12 @@ AudioDiskstream::process (jack_nframes_t transport_frame, jack_nframes_t nframes
 
                /* we're doing playback */
 
-               jack_nframes_t necessary_samples;
+               nframes_t necessary_samples;
 
                /* no varispeed playback if we're recording, because the output .... TBD */
 
                if (rec_nframes == 0 && _actual_speed != 1.0f) {
-                       necessary_samples = (jack_nframes_t) floor ((nframes * fabs (_actual_speed))) + 1;
+                       necessary_samples = (nframes_t) floor ((nframes * fabs (_actual_speed))) + 1;
                } else {
                        necessary_samples = nframes;
                }
@@ -762,7 +766,7 @@ AudioDiskstream::process (jack_nframes_t transport_frame, jack_nframes_t nframes
                                chan.current_playback_buffer = chan.playback_vector.buf[0];
 
                        } else {
-                               jack_nframes_t total = chan.playback_vector.len[0] + chan.playback_vector.len[1];
+                               nframes_t total = chan.playback_vector.len[0] + chan.playback_vector.len[1];
                                
                                if (necessary_samples > total) {
                                        DiskUnderrun ();
@@ -783,7 +787,7 @@ AudioDiskstream::process (jack_nframes_t transport_frame, jack_nframes_t nframes
                if (rec_nframes == 0 && _actual_speed != 1.0f && _actual_speed != -1.0f) {
                        
                        uint64_t phase = last_phase;
-                       jack_nframes_t i = 0;
+                       nframes_t i = 0;
 
                        // Linearly interpolate into the alt buffer
                        // using 40.24 fixp maths (swh)
@@ -796,7 +800,7 @@ AudioDiskstream::process (jack_nframes_t transport_frame, jack_nframes_t nframes
                                i = 0;
                                phase = last_phase;
 
-                               for (jack_nframes_t outsample = 0; outsample < nframes; ++outsample) {
+                               for (nframes_t outsample = 0; outsample < nframes; ++outsample) {
                                        i = phase >> 24;
                                        fr = (phase & 0xFFFFFF) / 16777216.0f;
                                        chan.speed_buffer[outsample] = 
@@ -835,7 +839,7 @@ AudioDiskstream::process (jack_nframes_t transport_frame, jack_nframes_t nframes
 }
 
 bool
-AudioDiskstream::commit (jack_nframes_t nframes)
+AudioDiskstream::commit (nframes_t nframes)
 {
        bool need_butler = false;
 
@@ -895,7 +899,7 @@ AudioDiskstream::overwrite_existing_buffers ()
        overwrite_queued = false;
 
        /* assume all are the same size */
-       jack_nframes_t size = channels[0].playback_buf->bufsize();
+       nframes_t size = channels[0].playback_buf->bufsize();
        
        mixdown_buffer = new Sample[size];
        gain_buffer = new float[size];
@@ -904,12 +908,12 @@ AudioDiskstream::overwrite_existing_buffers ()
        size--;
        
        uint32_t n=0;
-       jack_nframes_t start;
+       nframes_t start;
 
        for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan, ++n) {
 
                start = overwrite_frame;
-               jack_nframes_t cnt = size;
+               nframes_t cnt = size;
                
                /* to fill the buffer without resetting the playback sample, we need to
                   do it one or two chunks (normally two).
@@ -922,7 +926,7 @@ AudioDiskstream::overwrite_existing_buffers ()
                   
                */
                
-               jack_nframes_t to_read = size - overwrite_offset;
+               nframes_t to_read = size - overwrite_offset;
 
                if (read ((*chan).playback_buf->buffer() + overwrite_offset, mixdown_buffer, gain_buffer, start, to_read, *chan, n, reversed)) {
                        error << string_compose(_("AudioDiskstream %1: when refilling, cannot read %2 from playlist at frame %3"),
@@ -953,7 +957,7 @@ AudioDiskstream::overwrite_existing_buffers ()
 }
 
 int
-AudioDiskstream::seek (jack_nframes_t frame, bool complete_refill)
+AudioDiskstream::seek (nframes_t frame, bool complete_refill)
 {
        Glib::Mutex::Lock lm (state_lock);
        uint32_t n;
@@ -984,7 +988,7 @@ AudioDiskstream::seek (jack_nframes_t frame, bool complete_refill)
 }
 
 int
-AudioDiskstream::can_internal_playback_seek (jack_nframes_t distance)
+AudioDiskstream::can_internal_playback_seek (nframes_t distance)
 {
        ChannelList::iterator chan;
 
@@ -997,7 +1001,7 @@ AudioDiskstream::can_internal_playback_seek (jack_nframes_t distance)
 }
 
 int
-AudioDiskstream::internal_playback_seek (jack_nframes_t distance)
+AudioDiskstream::internal_playback_seek (nframes_t distance)
 {
        ChannelList::iterator chan;
 
@@ -1012,15 +1016,15 @@ AudioDiskstream::internal_playback_seek (jack_nframes_t distance)
 }
 
 int
-AudioDiskstream::read (Sample* buf, Sample* mixdown_buffer, float* gain_buffer, jack_nframes_t& start, jack_nframes_t cnt, 
+AudioDiskstream::read (Sample* buf, Sample* mixdown_buffer, float* gain_buffer, nframes_t& start, nframes_t cnt, 
                  ChannelInfo& channel_info, int channel, bool reversed)
 {
-       jack_nframes_t this_read = 0;
+       nframes_t this_read = 0;
        bool reloop = false;
-       jack_nframes_t loop_end = 0;
-       jack_nframes_t loop_start = 0;
-       jack_nframes_t loop_length = 0;
-       jack_nframes_t offset = 0;
+       nframes_t loop_end = 0;
+       nframes_t loop_start = 0;
+       nframes_t loop_length = 0;
+       nframes_t offset = 0;
        Location *loc = 0;
 
        if (!reversed) {
@@ -1120,14 +1124,14 @@ int
 AudioDiskstream::_do_refill (Sample* mixdown_buffer, float* gain_buffer)
 {
        int32_t ret = 0;
-       jack_nframes_t to_read;
+       nframes_t to_read;
        RingBufferNPT<Sample>::rw_vector vector;
        bool reversed = (_visible_speed * _session.transport_speed()) < 0.0f;
-       jack_nframes_t total_space;
-       jack_nframes_t zero_fill;
+       nframes_t total_space;
+       nframes_t zero_fill;
        uint32_t chan_n;
        ChannelList::iterator i;
-       jack_nframes_t ts;
+       nframes_t ts;
 
        assert(mixdown_buffer);
        assert(gain_buffer);
@@ -1239,14 +1243,14 @@ AudioDiskstream::_do_refill (Sample* mixdown_buffer, float* gain_buffer)
                }
        }
        
-       jack_nframes_t file_frame_tmp = 0;
+       nframes_t file_frame_tmp = 0;
 
        for (chan_n = 0, i = channels.begin(); i != channels.end(); ++i, ++chan_n) {
 
                ChannelInfo& chan (*i);
                Sample* buf1;
                Sample* buf2;
-               jack_nframes_t len1, len2;
+               nframes_t len1, len2;
 
                chan.playback_buf->get_write_vector (&vector);
 
@@ -1327,7 +1331,7 @@ AudioDiskstream::do_flush (Session::RunContext context, bool force_flush)
        int32_t ret = 0;
        RingBufferNPT<Sample>::rw_vector vector;
        RingBufferNPT<CaptureTransition>::rw_vector transvec;
-       jack_nframes_t total;
+       nframes_t total;
 
        _write_data_count = 0;
 
@@ -1357,7 +1361,7 @@ AudioDiskstream::do_flush (Session::RunContext context, bool force_flush)
                        ret = 1;
                } 
 
-               to_write = min (disk_io_chunk_frames, (jack_nframes_t) vector.len[0]);
+               to_write = min (disk_io_chunk_frames, (nframes_t) vector.len[0]);
                
                // check the transition buffer when recording destructive
                // important that we get this after the capture buf
@@ -1427,7 +1431,7 @@ AudioDiskstream::do_flush (Session::RunContext context, bool force_flush)
                           of vector.len[1] to be flushed to disk as well.
                        */
                
-                       to_write = min ((jack_nframes_t)(disk_io_chunk_frames - to_write), (jack_nframes_t) vector.len[1]);
+                       to_write = min ((nframes_t)(disk_io_chunk_frames - to_write), (nframes_t) vector.len[1]);
                
                        if ((*chan).write_source->write (vector.buf[1], to_write) != to_write) {
                                error << string_compose(_("AudioDiskstream %1: cannot write to disk"), _id) << endmsg;
@@ -1452,7 +1456,7 @@ AudioDiskstream::transport_stopped (struct tm& when, time_t twhen, bool abort_ca
        bool more_work = true;
        int err = 0;
        boost::shared_ptr<AudioRegion> region;
-       jack_nframes_t total_capture;
+       nframes_t total_capture;
        SourceList srcs;
        SourceList::iterator src;
        ChannelList::iterator chan;
@@ -1488,29 +1492,21 @@ AudioDiskstream::transport_stopped (struct tm& when, time_t twhen, bool abort_ca
 
        if (abort_capture) {
                
-               ChannelList::iterator chan;
-               
-               list<boost::shared_ptr<Source> >* deletion_list = new list<boost::shared_ptr<Source> >;
+               if (destructive()) {
+                       goto outout;
+               }
 
-               for ( chan = channels.begin(); chan != channels.end(); ++chan) {
+               for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
 
                        if ((*chan).write_source) {
                                
                                (*chan).write_source->mark_for_remove ();
-                               
-                               deletion_list->push_back ((*chan).write_source);
-
+                               (*chan).write_source->drop_references ();
                                (*chan).write_source.reset ();
                        }
                        
                        /* new source set up in "out" below */
                }
-               
-               if (!deletion_list->empty()) {
-                       DeleteSources (deletion_list);
-               } else {
-                       delete deletion_list;
-               }
 
                goto out;
        } 
@@ -1547,6 +1543,9 @@ AudioDiskstream::transport_stopped (struct tm& when, time_t twhen, bool abort_ca
 
        } else {
 
+               string whole_file_region_name;
+               whole_file_region_name = region_name_from_path (channels[0].write_source->name());
+
                /* Register a new region with the Session that
                   describes the entire source. Do this first
                   so that any sub-regions will obviously be
@@ -1555,7 +1554,7 @@ AudioDiskstream::transport_stopped (struct tm& when, time_t twhen, bool abort_ca
                
                try {
                        boost::shared_ptr<Region> rx (RegionFactory::create (srcs, channels[0].write_source->last_capture_start_frame(), total_capture, 
-                                                                            region_name_from_path (channels[0].write_source->name()), 
+                                                                            whole_file_region_name,
                                                                             0, AudioRegion::Flag (AudioRegion::DefaultFlags|AudioRegion::Automatic|AudioRegion::WholeFile)));
 
                        region = boost::dynamic_pointer_cast<AudioRegion> (rx);
@@ -1578,7 +1577,8 @@ AudioDiskstream::transport_stopped (struct tm& when, time_t twhen, bool abort_ca
                for (buffer_position = channels[0].write_source->last_capture_start_frame(), ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
                        
                        string region_name;
-                       _session.region_name (region_name, channels[0].write_source->name(), false);
+
+                       _session.region_name (region_name, whole_file_region_name, false);
                        
                        // cerr << _name << ": based on ci of " << (*ci)->start << " for " << (*ci)->frames << " add region " << region_name << endl;
                        
@@ -1592,9 +1592,9 @@ AudioDiskstream::transport_stopped (struct tm& when, time_t twhen, bool abort_ca
                                continue; /* XXX is this OK? */
                        }
                        
-                       _last_capture_regions.push_back (region);
+                       region->GoingAway.connect (bind (mem_fun (*this, &Diskstream::remove_region_from_last_capture), boost::weak_ptr<Region>(region)));
                        
-                       // cerr << "add new region, buffer position = " << buffer_position << " @ " << (*ci)->start << endl;
+                       _last_capture_regions.push_back (region);
                        
                        i_am_the_modifier++;
                        _playlist->add_region (region, (*ci)->start);
@@ -1610,9 +1610,11 @@ AudioDiskstream::transport_stopped (struct tm& when, time_t twhen, bool abort_ca
 
        mark_write_completed = true;
 
+  out:
        reset_write_sources (mark_write_completed);
 
-  out:
+  outout:
+
        for (ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
                delete *ci;
        }
@@ -1712,7 +1714,7 @@ AudioDiskstream::engage_record_enable ()
 
        g_atomic_int_set (&_record_enabled, 1);
        capturing_sources.clear ();
-       if (Config->get_use_hardware_monitoring())  {
+       if (Config->get_monitoring_model() == HardwareMonitoring) {
                for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
                        if ((*chan).source) {
                                (*chan).source->ensure_monitor_input (!(Config->get_auto_input() && rolling));
@@ -1732,7 +1734,7 @@ void
 AudioDiskstream::disengage_record_enable ()
 {
        g_atomic_int_set (&_record_enabled, 0);
-       if (Config->get_use_hardware_monitoring()) {
+       if (Config->get_monitoring_model() == HardwareMonitoring) {
                for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
                        if ((*chan).source) {
                                (*chan).source->ensure_monitor_input (false);
@@ -1759,11 +1761,11 @@ AudioDiskstream::get_state ()
 
        node->add_property ("playlist", _playlist->name());
        
-       snprintf (buf, sizeof(buf), "%f", _visible_speed);
+       snprintf (buf, sizeof(buf), "%.12g", _visible_speed);
        node->add_property ("speed", buf);
 
        node->add_property("name", _name);
-       id().print (buf);
+       id().print (buf, sizeof (buf));
        node->add_property("id", buf);
 
        if (!capturing_sources.empty() && _session.get_record_enabled()) {
@@ -1937,13 +1939,8 @@ AudioDiskstream::use_new_write_source (uint32_t n)
        ChannelInfo &chan = channels[n];
        
        if (chan.write_source) {
-
-               if (AudioFileSource::is_empty (_session, chan.write_source->path())) {
-                       chan.write_source->mark_for_remove ();
-                       chan.write_source.reset ();
-               } else {
-                       chan.write_source.reset ();
-               }
+               chan.write_source->set_allow_remove_if_empty (true);
+               chan.write_source.reset ();
        }
 
        try {
@@ -2025,7 +2022,7 @@ AudioDiskstream::rename_write_sources ()
 }
 
 void
-AudioDiskstream::set_block_size (jack_nframes_t nframes)
+AudioDiskstream::set_block_size (nframes_t nframes)
 {
        if (_session.get_block_size() > speed_buffer_size) {
                speed_buffer_size = _session.get_block_size();
@@ -2047,7 +2044,7 @@ AudioDiskstream::allocate_temporary_buffers ()
        */
 
        double sp = max (fabsf (_actual_speed), 1.2f);
-       jack_nframes_t required_wrap_size = (jack_nframes_t) floor (_session.get_block_size() * sp) + 1;
+       nframes_t required_wrap_size = (nframes_t) floor (_session.get_block_size() * sp) + 1;
 
        if (required_wrap_size > wrap_buffer_size) {
 
@@ -2157,7 +2154,7 @@ AudioDiskstream::use_pending_capture_data (XMLNode& node)
        boost::shared_ptr<AudioFileSource> fs;
        boost::shared_ptr<AudioFileSource> first_fs;
        SourceList pending_sources;
-       jack_nframes_t position;
+       nframes_t position;
 
        if ((prop = node.property (X_("at"))) == 0) {
                return -1;
@@ -2239,3 +2236,70 @@ AudioDiskstream::use_pending_capture_data (XMLNode& node)
 
        return 0;
 }
+
+int
+AudioDiskstream::set_destructive (bool yn)
+{
+       bool bounce_ignored;
+
+       if (yn != destructive()) {
+               
+               if (yn) {
+                       /* requestor should already have checked this and
+                          bounced if necessary and desired 
+                       */
+                       if (!can_become_destructive (bounce_ignored)) {
+                               return -1;
+                       }
+                       _flags |= Destructive;
+                       use_destructive_playlist ();
+               } else {
+                       _flags &= ~Destructive;
+                       reset_write_sources (true, true);
+               }
+       }
+
+       return 0;
+}
+
+bool
+AudioDiskstream::can_become_destructive (bool& requires_bounce) const
+{
+       if (!_playlist) {
+               requires_bounce = false;
+               return false;
+       }
+
+       /* is there only one region ? */
+
+       if (_playlist->n_regions() != 1) {
+               requires_bounce = true;
+               return false;
+       }
+
+       boost::shared_ptr<Region> first = _playlist->find_next_region (_session.current_start_frame(), Start, 1);
+       assert (first);
+
+       /* do the source(s) for the region cover the session start position ? */
+       
+       if (first->position() != _session.current_start_frame()) {
+               if (first->start() > _session.current_start_frame()) {
+                       requires_bounce = true;
+                       return false;
+               }
+       }
+
+       /* is the source used by only 1 playlist ? */
+
+       boost::shared_ptr<AudioRegion> afirst = boost::dynamic_pointer_cast<AudioRegion> (first);
+
+       assert (afirst);
+
+       if (afirst->source()->used() > 1) {
+               requires_bounce = true; 
+               return false;
+       }
+
+       requires_bounce = false;
+       return true;
+}