X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fbuffer_set.cc;h=159a24c217c9fb105c64fa851c68900a26a6d4ef;hb=ed72df29b79f9e2dc7482f07c39010b4523c4a8e;hp=24af224845e08165e3d3f38761d49002a8c9fe4f;hpb=a8da89d745c6a7e7d4c20dfcfb16b2537d767428;p=ardour.git diff --git a/libs/ardour/buffer_set.cc b/libs/ardour/buffer_set.cc index 24af224845..159a24c217 100644 --- a/libs/ardour/buffer_set.cc +++ b/libs/ardour/buffer_set.cc @@ -1,26 +1,41 @@ /* - 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 +#ifdef VST_SUPPORT +#include "vestige/aeffectx.h" +#endif namespace ARDOUR { @@ -28,8 +43,9 @@ 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(); @@ -56,40 +72,67 @@ BufferSet::clear() _buffers.clear(); _count.reset(); _available.reset(); + +#ifdef VST_SUPPORT + for (VSTBuffers::iterator i = _vst_buffers.begin(); i != _vst_buffers.end(); ++i) { + delete *i; + } + + _vst_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_jack_port_addresses() will fill in a structure set up by this method. */ void -BufferSet::attach_buffers(PortSet& ports) +BufferSet::attach_buffers (PortSet& ports) { clear(); for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) { _buffers.push_back(BufferVec()); - BufferVec& v = _buffers[(*t).to_index()]; + 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())); + v.push_back (0); } - } - + _count = ports.count(); + _available = ports.count(); _is_mirror = true; } +/** Write the JACK 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. + */ void -BufferSet::ensure_buffers(const ChanCount& count, size_t buffer_capacity) +BufferSet::get_jack_port_addresses (PortSet& ports, framecnt_t nframes, framecnt_t offset) { + 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) { - ensure_buffers(*t, count.get(*t), buffer_capacity); + 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, offset); + ++i; + } } } - /** Ensure that there are @a num_buffers buffers of type @a type available, * each of size at least @a buffer_size */ @@ -97,14 +140,15 @@ void 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); @@ -124,12 +168,32 @@ 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 + +#ifdef VST_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 // Post-conditions assert(bufs[0]->type() == type); @@ -138,6 +202,17 @@ 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) +{ + for (DataType::iterator i = DataType::begin(); i != DataType::end(); ++i) { + ensure_buffers (*i, chns.get (*i), buffer_capacity); + } +} + /** Get the capacity (size) of the available buffers of the given type. * * All buffers of a certain type always have the same capacity. @@ -146,25 +221,199 @@ size_t BufferSet::buffer_capacity(DataType type) const { assert(_available.get(type) > 0); - return _buffers[type.to_index()][0]->capacity(); + return _buffers[type][0]->capacity(); +} + +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) +{ + 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()); + } + } + 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 /* HAVE_SLV2 */ + +#ifdef VST_SUPPORT + +VstEvents* +BufferSet::get_vst_midi (size_t b) +{ + MidiBuffer& m = get_midi (b); + VSTBuffer* vst = _vst_buffers[b]; + + vst->clear (); + + 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 = 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); + throw failed_constructor (); + } + + _events->numEvents = 0; + _events->reserved = 0; +} + +BufferSet::VSTBuffer::~VSTBuffer () +{ + free (_events); + free (_midi_events); +} + +void +BufferSet::VSTBuffer::clear () +{ + _events->numEvents = 0; } -// FIXME: make 'in' const void -BufferSet::read_from(BufferSet& in, nframes_t nframes, nframes_t offset) +BufferSet::VSTBuffer::push_back (Evoral::MIDIEvent const & ev) +{ + if (ev.size() > 3) { + /* XXX: this will silently drop MIDI messages longer than 3 bytes, so + they won't be passed to VST plugins or VSTis + */ + return; + } + int const n = _events->numEvents; + assert (n < (int) _capacity); + + _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->flags = 0; + v->detune = 0; + v->noteLength = 0; + v->noteOffset = 0; + v->reserved1 = 0; + v->reserved2 = 0; + v->noteOffVelocity = 0; + memcpy (v->midiData, ev.buffer(), ev.size()); + v->midiData[3] = 0; + + _events->numEvents++; +} + +#endif /* VST_SUPPORT */ + +void +BufferSet::read_from (const BufferSet& in, framecnt_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, framecnt_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 (framecnt_t nframes, framecnt_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