675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <algorithm>
-#include <ardour/buffer_set.h>
-
-namespace ARDOUR {
+#ifdef WAF_BUILD
+#include "libardour-config.h"
+#endif
-/** Create a BufferSet to mirror a PortSet */
-BufferSet::BufferSet(const PortSet& ports)
- : _count(ports.chan_count())
- , _is_mirror(true)
-{
- for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
- BufferVec v;
-
- for (size_t j=0; j < ports.num_ports(*t); ++j) {
- v.push_back(&ports.nth_port_of_type(*t, j)->get_buffer());
- }
+#include <iostream>
+#include <algorithm>
+#include "ardour/buffer.h"
+#include "ardour/buffer_set.h"
+#include "ardour/midi_buffer.h"
+#include "ardour/port.h"
+#include "ardour/port_set.h"
+#include "ardour/audioengine.h"
+#ifdef HAVE_SLV2
+#include "ardour/lv2_plugin.h"
+#include "ardour/lv2_event_buffer.h"
+#endif
- _buffers.push_back(v);
- }
-}
+namespace ARDOUR {
/** Create a new, empty BufferSet */
BufferSet::BufferSet()
: _is_mirror(false)
+ , _is_silent(false)
{
- for (size_t i=0; i < DataType::num_types; ++i)
- _buffers.push_back( BufferVec() );
+ for (size_t i=0; i < DataType::num_types; ++i) {
+ _buffers.push_back(BufferVec());
+ }
_count.reset();
+ _available.reset();
}
-
BufferSet::~BufferSet()
{
- if (!_is_mirror)
- clear();
+ clear();
}
-
/** Destroy all contained buffers.
*/
void
BufferSet::clear()
{
- for (std::vector<BufferVec>::iterator i = _buffers.begin(); i != _buffers.end(); ++i) {
- for (BufferVec::iterator j = (*i).begin(); j != (*i).end(); ++j) {
- delete *j;
+ if (!_is_mirror) {
+ for (std::vector<BufferVec>::iterator i = _buffers.begin(); i != _buffers.end(); ++i) {
+ for (BufferVec::iterator j = (*i).begin(); j != (*i).end(); ++j) {
+ delete *j;
+ }
+ (*i).clear();
}
- (*i).clear();
}
_buffers.clear();
+ _count.reset();
+ _available.reset();
}
-
+/** Make this BufferSet a direct mirror of a PortSet's buffers.
+ */
void
-BufferSet::ensure_buffers(const ChanCount& chan_count, size_t buffer_capacity)
+BufferSet::attach_buffers(PortSet& ports, nframes_t nframes, nframes_t offset)
{
+ clear();
+
for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
- ensure_buffers(chan_count.get(*t), *t, buffer_capacity);
+ _buffers.push_back(BufferVec());
+ BufferVec& v = _buffers[*t];
+
+ for (PortSet::iterator p = ports.begin(*t); p != ports.end(*t); ++p) {
+ assert(p->type() == *t);
+ v.push_back(&(p->get_buffer(nframes, offset)));
+ }
}
-}
+
+ _count = ports.count();
+ _available = ports.count();
+ _is_mirror = true;
+}
/** Ensure that there are @a num_buffers buffers of type @a type available,
* each of size at least @a buffer_size
*/
void
-BufferSet::ensure_buffers(size_t num_buffers, DataType type, size_t buffer_capacity)
+BufferSet::ensure_buffers(DataType type, size_t num_buffers, size_t buffer_capacity)
{
assert(type != DataType::NIL);
- assert(type.to_index() < _buffers.size());
+ assert(type < _buffers.size());
- if (num_buffers == 0)
+ if (num_buffers == 0) {
return;
+ }
// The vector of buffers of the type we care about
- BufferVec& bufs = _buffers[type.to_index()];
+ BufferVec& bufs = _buffers[type];
+
+ // If we're a mirror just make sure we're ok
+ if (_is_mirror) {
+ assert(_count.get(type) >= num_buffers);
+ assert(bufs[0]->type() == type);
+ return;
+ }
// If there's not enough or they're too small, just nuke the whole thing and
// rebuild it (so I'm lazy..)
bufs.clear();
// Rebuild it
- for (size_t i=0; i < num_buffers; ++i) {
+ for (size_t i = 0; i < num_buffers; ++i) {
bufs.push_back(Buffer::create(type, buffer_capacity));
}
+
+ _available.set(type, num_buffers);
+ _count.set (type, num_buffers);
}
+#ifdef HAVE_SLV2
+ // Ensure enough low level MIDI format buffers are available for conversion
+ // in both directions (input & output, out-of-place)
+ if (type == DataType::MIDI && _lv2_buffers.size() < _buffers[type].size() * 2 + 1) {
+ while (_lv2_buffers.size() < _buffers[type].size() * 2) {
+ _lv2_buffers.push_back(std::make_pair(false, new LV2EventBuffer(buffer_capacity)));
+ }
+ }
+#endif
+
// Post-conditions
+ assert(bufs[0]->type() == type);
assert(bufs.size() >= num_buffers);
- assert((bufs[0])->type() == type);
+ assert(bufs.size() == _available.get(type));
assert(bufs[0]->capacity() >= buffer_capacity);
}
-size_t
-BufferSet::available_buffers(DataType type) const
+/** Ensure that the number of buffers of each type @a type matches @a chns
+ * and each buffer is of size at least @a buffer_capacity
+ */
+void
+BufferSet::ensure_buffers(const ChanCount& chns, size_t buffer_capacity)
{
- return _buffers[type.to_symbol()-1].size();
-}
+ if (chns == ChanCount::ZERO) {
+ return;
+ }
+
+ // If we're a mirror just make sure we're ok
+ if (_is_mirror) {
+ assert(_count >= chns);
+ return;
+ }
+ for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
+
+ // The vector of buffers of this type
+ BufferVec& bufs = _buffers[*t];
+
+ uint32_t nbufs = chns.get (*t);
+
+ if (nbufs == 0) {
+ // Nuke it
+ for (BufferVec::iterator i = bufs.begin(); i != bufs.end(); ++i) {
+ delete (*i);
+ }
+ bufs.clear();
+ continue;
+ }
+
+ // If there's not enough or they're too small, just nuke the whole thing and
+ // rebuild it (so I'm lazy..)
+ if (bufs.size() < nbufs
+ || (bufs.size() > 0 && bufs[0]->capacity() < buffer_capacity)) {
+
+ // Nuke it
+ for (BufferVec::iterator i = bufs.begin(); i != bufs.end(); ++i) {
+ delete (*i);
+ }
+ bufs.clear();
+
+ // Rebuild it
+ for (size_t i = 0; i < nbufs; ++i) {
+ bufs.push_back(Buffer::create(*t, buffer_capacity));
+ }
+
+ _available.set (*t, nbufs);
+ }
+
+#ifdef HAVE_SLV2
+ // Ensure enough low level MIDI format buffers are available for conversion
+ // in both directions (input & output, out-of-place)
+ if (*t == DataType::MIDI && _lv2_buffers.size() < _buffers[DataType::MIDI].size() * 2 + 1) {
+ while (_lv2_buffers.size() < _buffers[DataType::MIDI].size() * 2) {
+ _lv2_buffers.push_back(std::make_pair(false, new LV2EventBuffer(buffer_capacity)));
+ }
+ }
+#endif
+
+ // Post-conditions
+ assert(bufs[0]->type() == *t);
+ assert(bufs.size() == _available.get(*t));
+ assert(bufs[0]->capacity() >= buffer_capacity);
+ }
+
+ assert (available() == chns);
+}
/** Get the capacity (size) of the available buffers of the given type.
*
size_t
BufferSet::buffer_capacity(DataType type) const
{
- assert(available_buffers(type) > 0);
- return _buffers[type.to_index()][0]->capacity();
+ assert(_available.get(type) > 0);
+ return _buffers[type][0]->capacity();
+}
+
+Buffer&
+BufferSet::get(DataType type, size_t i)
+{
+ assert(i < _available.get(type));
+ return *_buffers[type][i];
+}
+
+#ifdef HAVE_SLV2
+
+LV2EventBuffer&
+BufferSet::get_lv2_midi(bool input, size_t i)
+{
+ MidiBuffer& mbuf = get_midi(i);
+ LV2Buffers::value_type b = _lv2_buffers.at(i * 2 + (input ? 0 : 1));
+ LV2EventBuffer* ebuf = b.second;
+
+ ebuf->reset();
+ if (input) {
+ for (MidiBuffer::iterator e = mbuf.begin(); e != mbuf.end(); ++e) {
+ const Evoral::MIDIEvent<nframes_t> ev(*e, false);
+ uint32_t type = LV2Plugin::midi_event_type();
+ ebuf->append(ev.time(), 0, type, ev.size(), ev.buffer());
+ }
+ }
+ return *ebuf;
+}
+
+void
+BufferSet::flush_lv2_midi(bool input, size_t i)
+{
+ MidiBuffer& mbuf = get_midi(i);
+ LV2Buffers::value_type b = _lv2_buffers.at(i * 2 + (input ? 0 : 1));
+ LV2EventBuffer* ebuf = b.second;
+
+ mbuf.silence(0, 0);
+ for (ebuf->rewind(); ebuf->is_valid(); ebuf->increment()) {
+ uint32_t frames;
+ uint32_t subframes;
+ uint16_t type;
+ uint16_t size;
+ uint8_t* data;
+ ebuf->get_event(&frames, &subframes, &type, &size, &data);
+ mbuf.push_back(frames, size, data);
+ }
+}
+
+#endif
+
+// FIXME: make 'in' const
+void
+BufferSet::read_from (BufferSet& in, nframes_t nframes)
+{
+ assert(available() >= in.count());
+
+ // Copy all buffers 1:1
+ for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
+ BufferSet::iterator o = begin(*t);
+ for (BufferSet::iterator i = in.begin(*t); i != in.end(*t); ++i, ++o) {
+ o->read_from (*i, nframes);
+ }
+ }
+
+ set_count(in.count());
+}
+
+// FIXME: make 'in' const
+void
+BufferSet::merge_from (BufferSet& in, nframes_t nframes)
+{
+ /* merge all input buffers into out existing buffers.
+
+ NOTE: if "in" contains more buffers than this set,
+ we will drop the extra buffers.
+
+ */
+
+ for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
+ BufferSet::iterator o = begin(*t);
+ for (BufferSet::iterator i = in.begin(*t); i != in.end(*t) && o != end (*t); ++i, ++o) {
+ o->merge_from (*i, nframes);
+ }
+ }
}
+void
+BufferSet::silence (nframes_t nframes, nframes_t offset)
+{
+ for (std::vector<BufferVec>::iterator i = _buffers.begin(); i != _buffers.end(); ++i) {
+ for (BufferVec::iterator b = i->begin(); b != i->end(); ++b) {
+ (*b)->silence (nframes, offset);
+ }
+ }
+}
} // namespace ARDOUR
projects / ardour.git / blobdiff