X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fbuffer_set.cc;h=194f07e908a8368460df6f0f5c172d863fa06426;hb=fb01698450e5cb88c7e58fb3a5ebe6294731fdfe;hp=c60c0ac2b91fbe20372822d6aba5df78b42a9512;hpb=73192bc1a7ea55fa1864dc3826845b15c00dd2ec;p=ardour.git diff --git a/libs/ardour/buffer_set.cc b/libs/ardour/buffer_set.cc index c60c0ac2b9..194f07e908 100644 --- a/libs/ardour/buffer_set.cc +++ b/libs/ardour/buffer_set.cc @@ -23,18 +23,24 @@ #include #include +#include + +#include "pbd/compose.h" +#include "pbd/failed_constructor.h" + #include "ardour/buffer.h" #include "ardour/buffer_set.h" +#include "ardour/debug.h" #include "ardour/midi_buffer.h" #include "ardour/port.h" #include "ardour/port_set.h" -#include "ardour/audioengine.h" -#ifdef HAVE_SLV2 +#ifdef LV2_SUPPORT #include "ardour/lv2_plugin.h" -#include "ardour/lv2_event_buffer.h" +#include "lv2_evbuf.h" +#include "ardour/uri_map.h" #endif -#ifdef VST_SUPPORT -#include "vestige/aeffectx.h" +#if defined WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT || defined MACVST_SUPPORT +#include "ardour/vestige/vestige.h" #endif namespace ARDOUR { @@ -73,38 +79,76 @@ BufferSet::clear() _count.reset(); _available.reset(); -#ifdef VST_SUPPORT +#if defined WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT || defined MACVST_SUPPORT for (VSTBuffers::iterator i = _vst_buffers.begin(); i != _vst_buffers.end(); ++i) { delete *i; } _vst_buffers.clear (); -#endif +#endif + +#ifdef LV2_SUPPORT + for (LV2Buffers::iterator i = _lv2_buffers.begin(); i != _lv2_buffers.end(); ++i) { + free ((*i).second); + } + _lv2_buffers.clear (); +#endif + } -/** Make this BufferSet a direct mirror of a PortSet's buffers. +/** Set up this BufferSet so that its data structures mirror a PortSet's buffers. + * This is quite expensive and not RT-safe, so it should not be called in a process context; + * get_backend_port_addresses() will fill in a structure set up by this method. + * + * XXX: this *is* called in a process context; I'm not sure quite what `should not' means above. */ void -BufferSet::attach_buffers (PortSet& ports, framecnt_t nframes, framecnt_t offset) +BufferSet::attach_buffers (PortSet& ports) { - clear(); + const ChanCount& count (ports.count()); + + clear (); for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) { - _buffers.push_back(BufferVec()); + _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))); - } + v.assign (count.n (*t), (Buffer*) 0); } _count = ports.count(); _available = ports.count(); + _is_mirror = true; } +/** Write the backend port addresses from a PortSet into our data structures. This + * call assumes that attach_buffers() has already been called for the same PortSet. + * Does not allocate, so RT-safe BUT you can only call Port::get_buffer() from + * the process() callback tree anyway, so this has to be called in RT context. + */ +void +BufferSet::get_backend_port_addresses (PortSet& ports, samplecnt_t nframes) +{ + assert (_count == ports.count ()); + assert (_available == ports.count ()); + assert (_is_mirror); + + assert (_buffers.size() == DataType::num_types); + + for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) { + BufferVec& v = _buffers[*t]; + + assert (v.size() == ports.num_ports (*t)); + + int i = 0; + for (PortSet::iterator p = ports.begin(*t); p != ports.end(*t); ++p) { + v[i] = &p->get_buffer (nframes); + ++i; + } + } +} + /** Ensure that there are @a num_buffers buffers of type @a type available, * each of size at least @a buffer_size */ @@ -131,7 +175,7 @@ BufferSet::ensure_buffers(DataType type, size_t num_buffers, size_t buffer_capac // 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() < num_buffers - || (bufs.size() > 0 && bufs[0]->capacity() < buffer_capacity)) { + || (bufs.size() > 0 && bufs[0]->capacity() < buffer_capacity)) { // Nuke it for (BufferVec::iterator i = bufs.begin(); i != bufs.end(); ++i) { @@ -148,24 +192,28 @@ BufferSet::ensure_buffers(DataType type, size_t num_buffers, size_t buffer_capac _count.set (type, num_buffers); } -#ifdef HAVE_SLV2 +#ifdef LV2_SUPPORT // 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))); + _lv2_buffers.push_back( + std::make_pair(false, lv2_evbuf_new(buffer_capacity, + LV2_EVBUF_EVENT, + URIMap::instance().urids.atom_Chunk, + URIMap::instance().urids.atom_Sequence))); } } #endif -#ifdef VST_SUPPORT +#if defined WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT || defined MACVST_SUPPORT // As above but for VST if (type == DataType::MIDI) { while (_vst_buffers.size() < _buffers[type].size()) { _vst_buffers.push_back (new VSTBuffer (buffer_capacity)); } } -#endif +#endif // Post-conditions assert(bufs[0]->type() == type); @@ -210,55 +258,98 @@ BufferSet::get(DataType type, size_t i) const return *_buffers[type][i]; } -#ifdef HAVE_SLV2 +#ifdef LV2_SUPPORT -LV2EventBuffer& -BufferSet::get_lv2_midi(bool input, size_t i) +void +BufferSet::ensure_lv2_bufsize(bool input, size_t i, size_t buffer_capacity) { - assert (count().get(DataType::MIDI) > 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 ev(*e, false); - uint32_t type = LV2Plugin::midi_event_type(); - ebuf->append(ev.time(), 0, type, ev.size(), ev.buffer()); + assert(count().get(DataType::MIDI) > i); + + LV2Buffers::value_type b = _lv2_buffers.at(i * 2 + (input ? 0 : 1)); + LV2_Evbuf* evbuf = b.second; + + if (lv2_evbuf_get_capacity(evbuf) >= buffer_capacity) return; + + lv2_evbuf_free(b.second); + _lv2_buffers.at(i * 2 + (input ? 0 : 1)) = + std::make_pair(false, lv2_evbuf_new( + buffer_capacity, + LV2_EVBUF_EVENT, + URIMap::instance().urids.atom_Chunk, + URIMap::instance().urids.atom_Sequence)); +} + +LV2_Evbuf* +BufferSet::get_lv2_midi(bool input, size_t i, bool old_api) +{ + assert(count().get(DataType::MIDI) > i); + + LV2Buffers::value_type b = _lv2_buffers.at(i * 2 + (input ? 0 : 1)); + LV2_Evbuf* evbuf = b.second; + + lv2_evbuf_set_type(evbuf, old_api ? LV2_EVBUF_EVENT : LV2_EVBUF_ATOM); + lv2_evbuf_reset(evbuf, input); + return evbuf; +} + +void +BufferSet::forward_lv2_midi(LV2_Evbuf* buf, size_t i, bool purge_ardour_buffer) +{ + MidiBuffer& mbuf = get_midi(i); + if (purge_ardour_buffer) { + mbuf.silence(0, 0); + } + for (LV2_Evbuf_Iterator i = lv2_evbuf_begin(buf); + lv2_evbuf_is_valid(i); + i = lv2_evbuf_next(i)) { + uint32_t samples, subframes, type, size; + uint8_t* data; + lv2_evbuf_get(i, &samples, &subframes, &type, &size, &data); + if (type == URIMap::instance().urids.midi_MidiEvent) { + mbuf.push_back(samples, size, data); } } - 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; + MidiBuffer& mbuf = get_midi(i); + LV2Buffers::value_type b = _lv2_buffers.at(i * 2 + (input ? 0 : 1)); + LV2_Evbuf* evbuf = b.second; mbuf.silence(0, 0); - for (ebuf->rewind(); ebuf->is_valid(); ebuf->increment()) { - uint32_t frames; + for (LV2_Evbuf_Iterator i = lv2_evbuf_begin(evbuf); + lv2_evbuf_is_valid(i); + i = lv2_evbuf_next(i)) { + uint32_t samples; uint32_t subframes; - uint16_t type; - uint16_t size; + uint32_t type; + uint32_t size; uint8_t* data; - ebuf->get_event(&frames, &subframes, &type, &size, &data); - mbuf.push_back(frames, size, data); + lv2_evbuf_get(i, &samples, &subframes, &type, &size, &data); +#ifndef NDEBUG + DEBUG_TRACE (PBD::DEBUG::LV2, string_compose ("(FLUSH) MIDI event of size %1\n", size)); + for (uint16_t x = 0; x < size; ++x) { + DEBUG_TRACE (PBD::DEBUG::LV2, string_compose ("\tByte[%1] = %2\n", x, (int) data[x])); + } +#endif + if (type == URIMap::instance().urids.midi_MidiEvent) { + // TODO: Make Ardour event buffers generic so plugins can communicate + mbuf.push_back(samples, size, data); + } } } -#endif /* HAVE_SLV2 */ +#endif /* LV2_SUPPORT */ -#ifdef VST_SUPPORT +#if defined WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT || defined MACVST_SUPPORT VstEvents* BufferSet::get_vst_midi (size_t b) { MidiBuffer& m = get_midi (b); + assert (b <= _vst_buffers.size()); VSTBuffer* vst = _vst_buffers[b]; vst->clear (); @@ -266,19 +357,30 @@ BufferSet::get_vst_midi (size_t b) for (MidiBuffer::iterator i = m.begin(); i != m.end(); ++i) { vst->push_back (*i); } - + return vst->events(); } BufferSet::VSTBuffer::VSTBuffer (size_t c) - : _capacity (c) + : _events (0) + , _midi_events (0) + , _capacity (c) { - _events = static_cast (malloc (sizeof (VstEvents) + _capacity * sizeof (VstEvent *))); - _midi_events = static_cast (malloc (sizeof (VstMidiEvent) * _capacity)); + if (_capacity > 0) { + /* from `man malloc`: "If size is 0, then malloc() returns either NULL, or a + * unique pointer value that can later be successfully passed to free()." + * + * The latter will cause trouble here. + */ + _events = static_cast (malloc (sizeof (VstEvents) + _capacity * sizeof (VstEvent *))); + _midi_events = static_cast (malloc (sizeof (VstMidiEvent) * _capacity)); + } if (_events == 0 || _midi_events == 0) { free (_events); free (_midi_events); + _events = 0; + _midi_events = 0; throw failed_constructor (); } @@ -299,7 +401,7 @@ BufferSet::VSTBuffer::clear () } void -BufferSet::VSTBuffer::push_back (Evoral::MIDIEvent const & ev) +BufferSet::VSTBuffer::push_back (Evoral::Event const & ev) { if (ev.size() > 3) { /* XXX: this will silently drop MIDI messages longer than 3 bytes, so @@ -307,15 +409,18 @@ BufferSet::VSTBuffer::push_back (Evoral::MIDIEvent const & ev) */ return; } - int const n = _events->numEvents; - assert (n < (int) _capacity); + uint32_t const n = _events->numEvents; + assert (n < _capacity); + if (n >= _capacity) { + return; + } _events->events[n] = reinterpret_cast (_midi_events + n); VstMidiEvent* v = reinterpret_cast (_events->events[n]); - + v->type = kVstMidiType; v->byteSize = sizeof (VstMidiEvent); - v->deltaFrames = ev.time (); + v->deltaSamples = ev.time (); v->flags = 0; v->detune = 0; @@ -330,26 +435,36 @@ BufferSet::VSTBuffer::push_back (Evoral::MIDIEvent const & ev) _events->numEvents++; } -#endif /* VST_SUPPORT */ +#endif /* WINDOWS_VST_SUPPORT */ +/** Copy buffers of one type from `in' to this BufferSet */ void -BufferSet::read_from (const BufferSet& in, framecnt_t nframes) +BufferSet::read_from (const BufferSet& in, samplecnt_t nframes, DataType type) +{ + assert (available().get (type) >= in.count().get (type)); + + BufferSet::iterator o = begin (type); + for (BufferSet::const_iterator i = in.begin (type); i != in.end (type); ++i, ++o) { + o->read_from (*i, nframes); + } + + _count.set (type, in.count().get (type)); +} + +/** Copy buffers of all types from `in' to this BufferSet */ +void +BufferSet::read_from (const BufferSet& in, samplecnt_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::const_iterator i = in.begin(*t); i != in.end(*t); ++i, ++o) { - o->read_from (*i, nframes); - } + read_from (in, nframes, *t); } - - set_count(in.count()); } void -BufferSet::merge_from (const BufferSet& in, framecnt_t nframes) +BufferSet::merge_from (const BufferSet& in, samplecnt_t nframes) { /* merge all input buffers into out existing buffers. @@ -367,7 +482,7 @@ BufferSet::merge_from (const BufferSet& in, framecnt_t nframes) } void -BufferSet::silence (framecnt_t nframes, framecnt_t offset) +BufferSet::silence (samplecnt_t nframes, samplecnt_t offset) { for (std::vector::iterator i = _buffers.begin(); i != _buffers.end(); ++i) { for (BufferVec::iterator b = i->begin(); b != i->end(); ++b) { @@ -376,16 +491,5 @@ BufferSet::silence (framecnt_t nframes, framecnt_t offset) } } -void -BufferSet::is_silent (bool yn) -{ - for (std::vector::iterator i = _buffers.begin(); i != _buffers.end(); ++i) { - for (BufferVec::iterator b = i->begin(); b != i->end(); ++b) { - (*b)->is_silent (yn); - } - } - -} - } // namespace ARDOUR