X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fbuffer_set.cc;h=c97a47e42bbb9ef97a907831946fa93a586b375a;hb=48dd5afaa57b5485297b9583a4124e9f444acd84;hp=280f70693b6ce2d017a2d623db496c1473eb5d34;hpb=f360ef94da46a560d667a51988ba66730696e812;p=ardour.git diff --git a/libs/ardour/buffer_set.cc b/libs/ardour/buffer_set.cc index 280f70693b..c97a47e42b 100644 --- a/libs/ardour/buffer_set.cc +++ b/libs/ardour/buffer_set.cc @@ -1,26 +1,38 @@ /* - Copyright (C) 2006 Paul Davis - + Copyright (C) 2006 Paul Davis + This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#ifdef WAF_BUILD +#include "libardour-config.h" +#endif + +#include #include -#include -#include -#include -#include +#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 namespace ARDOUR { @@ -28,8 +40,9 @@ namespace ARDOUR { BufferSet::BufferSet() : _is_mirror(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(); @@ -61,7 +74,7 @@ BufferSet::clear() /** Make this BufferSet a direct mirror of a PortSet's buffers. */ void -BufferSet::attach_buffers(PortSet& ports) +BufferSet::attach_buffers(PortSet& ports, nframes_t nframes, nframes_t offset) { clear(); @@ -71,25 +84,16 @@ BufferSet::attach_buffers(PortSet& ports) for (PortSet::iterator p = ports.begin(*t); p != ports.end(*t); ++p) { assert(p->type() == *t); - v.push_back(&(p->get_buffer())); + v.push_back(&(p->get_buffer(nframes, offset))); } - } - + _count = ports.count(); + _available = ports.count(); _is_mirror = true; } -void -BufferSet::ensure_buffers(const ChanCount& count, size_t buffer_capacity) -{ - for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) { - ensure_buffers(*t, count.get(*t), buffer_capacity); - } -} - - /** Ensure that there are @a num_buffers buffers of type @a type available, * each of size at least @a buffer_size */ @@ -98,20 +102,14 @@ BufferSet::ensure_buffers(DataType type, size_t num_buffers, size_t buffer_capac { assert(type != DataType::NIL); assert(type < _buffers.size()); - assert(buffer_capacity > 0); - if (num_buffers == 0) + if (num_buffers == 0) { return; - - // FIXME: Kludge to make MIDI buffers larger (size is bytes, not frames) - // See MidiPort::MidiPort - // We probably need a map parameter for capacity - if (type == DataType::MIDI) - buffer_capacity *= 4; + } // The vector of buffers of the type we care about BufferVec& bufs = _buffers[type]; - + // If we're a mirror just make sure we're ok if (_is_mirror) { assert(_count.get(type) >= num_buffers); @@ -131,12 +129,23 @@ BufferSet::ensure_buffers(DataType type, size_t num_buffers, size_t buffer_capac 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); @@ -145,6 +154,76 @@ BufferSet::ensure_buffers(DataType type, size_t num_buffers, size_t buffer_capac assert(bufs[0]->capacity() >= buffer_capacity); } +/** 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) +{ + 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. * * All buffers of a certain type always have the same capacity. @@ -156,22 +235,115 @@ BufferSet::buffer_capacity(DataType type) const return _buffers[type][0]->capacity(); } -// FIXME: make 'in' const +Buffer& +BufferSet::get(DataType type, size_t i) +{ + assert(i < _available.get(type)); + return *_buffers[type][i]; +} + +const Buffer& +BufferSet::get(DataType type, size_t i) const +{ + 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 ev(*e, false); + uint32_t type = LV2Plugin::midi_event_type(); + ebuf->append(ev.time(), 0, type, ev.size(), ev.buffer()); + } + } + return *ebuf; +} + void -BufferSet::read_from(BufferSet& in, nframes_t nframes, nframes_t offset) +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 + +void +BufferSet::read_from (const 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, offset); + for (BufferSet::const_iterator i = in.begin(*t); i != in.end(*t); ++i, ++o) { + o->read_from (*i, nframes); } } set_count(in.count()); } +void +BufferSet::merge_from (const 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::const_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::iterator i = _buffers.begin(); i != _buffers.end(); ++i) { + for (BufferVec::iterator b = i->begin(); b != i->end(); ++b) { + (*b)->silence (nframes, 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