Initial changes needed for building Mixbus (with MSVC) as version 5
[ardour.git] / libs / ardour / disk_reader.cc
index 4c5667b9db93f5ea83a64c4ca3e83f4f2d7a706f..375dda70759f0f4345e193223d07eb67b0c04fb5 100644 (file)
@@ -17,6 +17,8 @@
 
 */
 
+#include <boost/smart_ptr/scoped_array.hpp>
+
 #include "pbd/enumwriter.h"
 #include "pbd/memento_command.h"
 
@@ -54,6 +56,7 @@ DiskReader::DiskReader (Session& s, string const & str, DiskIOProcessor::Flag f)
        , overwrite_offset (0)
        , _pending_overwrite (false)
        , overwrite_queued (false)
+       , _declick_gain (0)
 {
        file_sample[DataType::AUDIO] = 0;
        file_sample[DataType::MIDI] = 0;
@@ -68,21 +71,30 @@ DiskReader::~DiskReader ()
                        _playlists[n]->release ();
                }
        }
+       delete _midi_buf;
+}
 
-       {
-               RCUWriter<ChannelList> writer (channels);
-               boost::shared_ptr<ChannelList> c = writer.get_copy();
-
-               for (ChannelList::iterator chan = c->begin(); chan != c->end(); ++chan) {
-                       delete *chan;
-               }
+void
+DiskReader::ReaderChannelInfo::resize (samplecnt_t bufsize)
+{
+       delete rbuf;
+       /* touch memory to lock it */
+       rbuf = new RingBufferNPT<Sample> (bufsize);
+       memset (rbuf->buffer(), 0, sizeof (Sample) * rbuf->bufsize());
+}
 
-               c->clear();
+int
+DiskReader::add_channel_to (boost::shared_ptr<ChannelList> c, uint32_t how_many)
+{
+       while (how_many--) {
+               c->push_back (new ReaderChannelInfo (_session.butler()->audio_diskstream_playback_buffer_size()));
+               DEBUG_TRACE (DEBUG::DiskIO, string_compose ("%1: new reader channel, write space = %2 read = %3\n",
+                                                           name(),
+                                                           c->back()->rbuf->write_space(),
+                                                           c->back()->rbuf->read_space()));
        }
 
-       channels.flush ();
-
-       delete _midi_buf;
+       return 0;
 }
 
 void
@@ -126,9 +138,9 @@ DiskReader::set_name (string const & str)
 }
 
 XMLNode&
-DiskReader::state (bool full)
+DiskReader::state ()
 {
-       XMLNode& node (DiskIOProcessor::state (full));
+       XMLNode& node (DiskIOProcessor::state ());
        node.set_property(X_("type"), X_("diskreader"));
        return node;
 }
@@ -173,7 +185,7 @@ DiskReader::buffer_load () const
                return 1.0;
        }
 
-       PBD::RingBufferNPT<Sample> * b = c->front()->buf;
+       PBD::RingBufferNPT<Sample>* b = c->front()->rbuf;
        return (float) ((double) b->read_space() / (double) b->bufsize());
 }
 
@@ -251,11 +263,6 @@ DiskReader::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
                }
        }
 
-       if (c->empty()) {
-               /* do nothing */
-               return;
-       }
-
        if ((speed == 0.0) && (ms == MonitoringDisk)) {
                /* no channels, or stopped. Don't accidentally pass any data
                 * from disk into our outputs (e.g. via interpolation)
@@ -263,27 +270,31 @@ DiskReader::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
                return;
        }
 
-       if (speed != 1.0f && speed != -1.0f) {
-               interpolation.set_speed (speed);
-               midi_interpolation.set_speed (speed);
-               disk_samples_to_consume = midi_interpolation.distance (nframes);
-               if (speed < 0.0) {
-                       disk_samples_to_consume = -disk_samples_to_consume;
-               }
-       } else {
-               disk_samples_to_consume = nframes;
-       }
-
        BufferSet& scratch_bufs (_session.get_scratch_buffers (bufs.count()));
        const bool still_locating = _session.global_locate_pending();
 
+       if (c->empty()) {
+               /* do nothing with audio */
+               goto midi;
+       }
+
+       assert (speed == -1 || speed == 0 || speed == 1);
+
+       if (speed < 0) {
+               disk_samples_to_consume = -nframes;
+       } else if (speed > 0) {
+               disk_samples_to_consume = nframes;
+       } else {
+               disk_samples_to_consume = 0;
+       }
+
        if (!result_required || ((ms & MonitoringDisk) == 0) || still_locating || _no_disk_output) {
 
                /* no need for actual disk data, just advance read pointer and return */
 
                if (!still_locating || _no_disk_output) {
                        for (ChannelList::iterator chan = c->begin(); chan != c->end(); ++chan) {
-                               (*chan)->buf->increment_read_ptr (disk_samples_to_consume);
+                               (*chan)->rbuf->increment_read_ptr (disk_samples_to_consume);
                        }
                }
 
@@ -321,12 +332,19 @@ DiskReader::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
                                disk_signal = output.data ();
                        }
 
-                       if (start_sample < playback_sample) {
-                               cerr << owner()->name() << " SS = " << start_sample << " PS = " << playback_sample << endl;
-                               abort ();
+                       if (speed > 0) {
+                               if (start_sample < playback_sample) {
+                                       cerr << owner()->name() << " SS = " << start_sample << " PS = " << playback_sample << endl;
+                                       abort ();
+                               }
+                       } else if (speed < 0) {
+                               if (playback_sample < start_sample) {
+                                       cerr << owner()->name() << " SS = " << start_sample << " PS = " << playback_sample << " REVERSE" << endl;
+                                       abort ();
+                               }
                        }
 
-                       if (start_sample != playback_sample) {
+                       if ((speed > 0) && (start_sample != playback_sample)) {
                                cerr << owner()->name() << " playback not aligned, jump ahead " << (start_sample - playback_sample) << endl;
 
                                if (can_internal_playback_seek (start_sample - playback_sample)) {
@@ -337,16 +355,11 @@ DiskReader::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
                                }
                        }
 
-                       chaninfo->buf->get_read_vector (&(*chan)->rw_vector);
+                       chaninfo->rbuf->get_read_vector (&(*chan)->rw_vector);
 
                        if (disk_samples_to_consume <= (samplecnt_t) chaninfo->rw_vector.len[0]) {
 
-                               if (fabsf (speed) != 1.0f) {
-                                       (void) interpolation.interpolate (
-                                               n, disk_samples_to_consume,
-                                               chaninfo->rw_vector.buf[0],
-                                               disk_signal);
-                               } else if (speed != 0.0) {
+                               if (speed != 0.0) {
                                        memcpy (disk_signal, chaninfo->rw_vector.buf[0], sizeof (Sample) * disk_samples_to_consume);
                                }
 
@@ -356,22 +369,11 @@ DiskReader::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
 
                                if (disk_samples_to_consume <= total) {
 
-                                       /* We have enough samples, but not in one lump.
-                                        */
-
-                                       if (fabsf (speed) != 1.0f) {
-                                               interpolation.interpolate (n, chaninfo->rw_vector.len[0],
-                                                                          chaninfo->rw_vector.buf[0],
-                                                                          disk_signal);
-                                               disk_signal += chaninfo->rw_vector.len[0];
-                                               interpolation.interpolate (n, disk_samples_to_consume - chaninfo->rw_vector.len[0],
-                                                                          chaninfo->rw_vector.buf[1],
-                                                                          disk_signal);
-                                       } else if (speed != 0.0) {
-                                               memcpy (disk_signal,
+                                               if (speed != 0.0) {
+                                                       memcpy (disk_signal,
                                                        chaninfo->rw_vector.buf[0],
                                                        chaninfo->rw_vector.len[0] * sizeof (Sample));
-                                               memcpy (disk_signal + chaninfo->rw_vector.len[0],
+                                                       memcpy (disk_signal + chaninfo->rw_vector.len[0],
                                                        chaninfo->rw_vector.buf[1],
                                                        (disk_samples_to_consume - chaninfo->rw_vector.len[0]) * sizeof (Sample));
                                        }
@@ -392,9 +394,7 @@ DiskReader::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
                                apply_gain_to_buffer (disk_signal, disk_samples_to_consume, scaling);
                        }
 
-                       chaninfo->buf->increment_read_ptr (disk_samples_to_consume);
-
-                 monitor_mix:
+                       chaninfo->rbuf->increment_read_ptr (disk_samples_to_consume);
 
                        if (ms & MonitoringInput) {
                                /* mix the disk signal into the input signal (already in bufs) */
@@ -406,7 +406,7 @@ DiskReader::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
        /* MIDI data handling */
 
   midi:
-       if (!_session.declick_out_pending() && bufs.count().n_midi()) {
+       if (/*!_session.declick_out_pending() && */ bufs.count().n_midi()) {
                MidiBuffer* dst;
 
                if (_no_disk_output) {
@@ -433,14 +433,13 @@ DiskReader::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_samp
                if (_playlists[DataType::AUDIO]) {
                        if (!c->empty()) {
                                if (_slaved) {
-                                       if (c->front()->buf->write_space() >= c->front()->buf->bufsize() / 2) {
-                                               DEBUG_TRACE (DEBUG::Butler, string_compose ("%1: slaved, write space = %2 of %3\n", name(), c->front()->buf->write_space(),
-                                                                                           c->front()->buf->bufsize()));
+                                       if (c->front()->rbuf->write_space() >= c->front()->rbuf->bufsize() / 2) {
+                                               DEBUG_TRACE (DEBUG::Butler, string_compose ("%1: slaved, write space = %2 of %3\n", name(), c->front()->rbuf->write_space(), c->front()->rbuf->bufsize()));
                                                butler_required = true;
                                        }
                                } else {
-                                       if ((samplecnt_t) c->front()->buf->write_space() >= _chunk_samples) {
-                                               DEBUG_TRACE (DEBUG::Butler, string_compose ("%1: write space = %2 of %3\n", name(), c->front()->buf->write_space(),
+                                       if ((samplecnt_t) c->front()->rbuf->write_space() >= _chunk_samples) {
+                                               DEBUG_TRACE (DEBUG::Butler, string_compose ("%1: write space = %2 of %3\n", name(), c->front()->rbuf->write_space(),
                                                                                            _chunk_samples));
                                                butler_required = true;
                                        }
@@ -515,7 +514,7 @@ DiskReader::set_pending_overwrite (bool yn)
 
        boost::shared_ptr<ChannelList> c = channels.reader ();
        if (!c->empty ()) {
-               overwrite_offset = c->front()->buf->get_read_ptr();
+               overwrite_offset = c->front()->rbuf->get_read_ptr();
        }
 }
 
@@ -537,10 +536,10 @@ DiskReader::overwrite_existing_buffers ()
                const bool reversed = _session.transport_speed() < 0.0f;
 
                /* assume all are the same size */
-               samplecnt_t size = c->front()->buf->bufsize();
+               samplecnt_t size = c->front()->rbuf->bufsize();
 
-               std::auto_ptr<Sample> mixdown_buffer (new Sample[size]);
-               std::auto_ptr<float> gain_buffer (new float[size]);
+               boost::scoped_array<Sample> mixdown_buffer (new Sample[size]);
+               boost::scoped_array<float> gain_buffer (new float[size]);
 
                /* reduce size so that we can fill the buffer correctly (ringbuffers
                   can only handle size-1, otherwise they appear to be empty)
@@ -568,7 +567,7 @@ DiskReader::overwrite_existing_buffers ()
 
                        samplecnt_t to_read = size - overwrite_offset;
 
-                       if (audio_read ((*chan)->buf->buffer() + overwrite_offset, mixdown_buffer.get(), gain_buffer.get(), start, to_read, n, reversed)) {
+                       if (audio_read ((*chan)->rbuf->buffer() + overwrite_offset, mixdown_buffer.get(), gain_buffer.get(), start, to_read, n, reversed)) {
                                error << string_compose(_("DiskReader %1: when refilling, cannot read %2 from playlist at sample %3"),
                                                        id(), size, playback_sample) << endmsg;
                                goto midi;
@@ -578,7 +577,7 @@ DiskReader::overwrite_existing_buffers ()
 
                                cnt -= to_read;
 
-                               if (audio_read ((*chan)->buf->buffer(), mixdown_buffer.get(), gain_buffer.get(), start, cnt, n, reversed)) {
+                               if (audio_read ((*chan)->rbuf->buffer(), mixdown_buffer.get(), gain_buffer.get(), start, cnt, n, reversed)) {
                                        error << string_compose(_("DiskReader %1: when refilling, cannot read %2 from playlist at sample %3"),
                                                                id(), size, playback_sample) << endmsg;
                                        goto midi;
@@ -630,7 +629,7 @@ DiskReader::seek (samplepos_t sample, bool complete_refill)
        //sample = std::max ((samplecnt_t)0, sample -_session.worst_output_latency ());
 
        for (n = 0, chan = c->begin(); chan != c->end(); ++chan, ++n) {
-               (*chan)->buf->reset ();
+               (*chan)->rbuf->reset ();
        }
 
        if (g_atomic_int_get (&_samples_read_from_ringbuffer) == 0) {
@@ -674,7 +673,7 @@ DiskReader::can_internal_playback_seek (samplecnt_t distance)
        boost::shared_ptr<ChannelList> c = channels.reader();
 
        for (chan = c->begin(); chan != c->end(); ++chan) {
-               if ((*chan)->buf->read_space() < (size_t) distance) {
+               if ((*chan)->rbuf->read_space() < (size_t) distance) {
                        return false;
                }
        }
@@ -694,7 +693,7 @@ DiskReader::internal_playback_seek (samplecnt_t distance)
        boost::shared_ptr<ChannelList> c = channels.reader();
 
        for (chan = c->begin(); chan != c->end(); ++chan) {
-               (*chan)->buf->increment_read_ptr (::llabs(distance));
+               (*chan)->rbuf->increment_read_ptr (::llabs(distance));
        }
 
        playback_sample += distance;
@@ -750,7 +749,7 @@ DiskReader::audio_read (Sample* buf, Sample* mixdown_buffer, float* gain_buffer,
                   just once.
                */
 
-               if ((loc = loop_location) != 0) {
+               if ((loc = _loop_location) != 0) {
                        loop_start = loc->start();
                        loop_end = loc->end();
                        loop_length = loop_end - loop_start;
@@ -830,8 +829,8 @@ DiskReader::_do_refill_with_alloc (bool partial_fill)
        */
 
        {
-               std::auto_ptr<Sample> mix_buf (new Sample[2*1048576]);
-               std::auto_ptr<float>  gain_buf (new float[2*1048576]);
+               boost::scoped_array<Sample> mix_buf (new Sample[2*1048576]);
+               boost::scoped_array<float>  gain_buf (new float[2*1048576]);
 
                int ret = refill_audio (mix_buf.get(), gain_buf.get(), (partial_fill ? _chunk_samples : 0));
 
@@ -899,7 +898,7 @@ DiskReader::refill_audio (Sample* mixdown_buffer, float* gain_buffer, samplecnt_
        vector.buf[1] = 0;
        vector.len[1] = 0;
 
-       c->front()->buf->get_write_vector (&vector);
+       c->front()->rbuf->get_write_vector (&vector);
 
        if ((total_space = vector.len[0] + vector.len[1]) == 0) {
                DEBUG_TRACE (DEBUG::DiskIO, string_compose ("%1: no space to refill\n", name()));
@@ -937,7 +936,7 @@ DiskReader::refill_audio (Sample* mixdown_buffer, float* gain_buffer, samplecnt_
           work with.
        */
 
-       if (_slaved && total_space < (samplecnt_t) (c->front()->buf->bufsize() / 2)) {
+       if (_slaved && total_space < (samplecnt_t) (c->front()->rbuf->bufsize() / 2)) {
                DEBUG_TRACE (DEBUG::DiskIO, string_compose ("%1: not enough to refill while slaved\n", this));
                return 0;
        }
@@ -953,12 +952,12 @@ DiskReader::refill_audio (Sample* mixdown_buffer, float* gain_buffer, samplecnt_
                        for (chan_n = 0, i = c->begin(); i != c->end(); ++i, ++chan_n) {
 
                                ChannelInfo* chan (*i);
-                               chan->buf->get_write_vector (&vector);
+                               chan->rbuf->get_write_vector (&vector);
                                memset (vector.buf[0], 0, sizeof(Sample) * vector.len[0]);
                                if (vector.len[1]) {
                                        memset (vector.buf[1], 0, sizeof(Sample) * vector.len[1]);
                                }
-                               chan->buf->increment_write_ptr (vector.len[0] + vector.len[1]);
+                               chan->rbuf->increment_write_ptr (vector.len[0] + vector.len[1]);
                        }
                        return 0;
                }
@@ -986,12 +985,12 @@ DiskReader::refill_audio (Sample* mixdown_buffer, float* gain_buffer, samplecnt_
                        for (chan_n = 0, i = c->begin(); i != c->end(); ++i, ++chan_n) {
 
                                ChannelInfo* chan (*i);
-                               chan->buf->get_write_vector (&vector);
+                               chan->rbuf->get_write_vector (&vector);
                                memset (vector.buf[0], 0, sizeof(Sample) * vector.len[0]);
                                if (vector.len[1]) {
                                        memset (vector.buf[1], 0, sizeof(Sample) * vector.len[1]);
                                }
-                               chan->buf->increment_write_ptr (vector.len[0] + vector.len[1]);
+                               chan->rbuf->increment_write_ptr (vector.len[0] + vector.len[1]);
                        }
                        return 0;
                }
@@ -1039,7 +1038,7 @@ DiskReader::refill_audio (Sample* mixdown_buffer, float* gain_buffer, samplecnt_
                Sample* buf2;
                samplecnt_t len1, len2;
 
-               chan->buf->get_write_vector (&vector);
+               chan->rbuf->get_write_vector (&vector);
 
                if ((samplecnt_t) vector.len[0] > samples_to_read) {
 
@@ -1083,7 +1082,7 @@ DiskReader::refill_audio (Sample* mixdown_buffer, float* gain_buffer, samplecnt_
                                ret = -1;
                                goto out;
                        }
-                       chan->buf->increment_write_ptr (to_read);
+                       chan->rbuf->increment_write_ptr (to_read);
                        ts -= to_read;
                }
 
@@ -1101,7 +1100,7 @@ DiskReader::refill_audio (Sample* mixdown_buffer, float* gain_buffer, samplecnt_
                                goto out;
                        }
 
-                       chan->buf->increment_write_ptr (to_read);
+                       chan->rbuf->increment_write_ptr (to_read);
                }
 
                if (zero_fill) {
@@ -1118,7 +1117,7 @@ DiskReader::refill_audio (Sample* mixdown_buffer, float* gain_buffer, samplecnt_
 
        ret = ((total_space - samples_to_read) > _chunk_samples);
 
-       c->front()->buf->get_write_vector (&vector);
+       c->front()->rbuf->get_write_vector (&vector);
 
   out:
        return ret;
@@ -1248,7 +1247,7 @@ DiskReader::get_midi_playback (MidiBuffer& dst, samplepos_t start_sample, sample
        if (ms & MonitoringDisk) {
                /* disk data needed */
 
-               Location* loc = loop_location;
+               Location* loc = _loop_location;
 
                DEBUG_TRACE (DEBUG::MidiDiskstreamIO, string_compose (
                                     "%1 MDS pre-read read %8 offset = %9 @ %4..%5 from %2 write to %3, LOOPED ? %6 .. %7\n", _name,
@@ -1373,7 +1372,7 @@ DiskReader::midi_read (samplepos_t& start, samplecnt_t dur, bool reversed)
        samplepos_t loop_end    = 0;
        samplepos_t loop_start  = 0;
        samplecnt_t loop_length = 0;
-       Location*  loc         = loop_location;
+       Location*  loc         = _loop_location;
        samplepos_t effective_start = start;
        Evoral::Range<samplepos_t>*  loop_range (0);