X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fbuffer_set.cc;h=caf6d7e8d2e8fcd8b8570bae203f24b54e5b94a8;hb=bc3e1a212250a67e53e86c972287a275834a967a;hp=c479b6c405c1a9ea518bb216baf19321c81d6d2a;hpb=cbdf686e391bc2e7b93f37a5d3fa9197cb178078;p=ardour.git diff --git a/libs/ardour/buffer_set.cc b/libs/ardour/buffer_set.cc index c479b6c405..caf6d7e8d2 100644 --- a/libs/ardour/buffer_set.cc +++ b/libs/ardour/buffer_set.cc @@ -1,99 +1,168 @@ /* - 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. */ -#include -#include -namespace ARDOUR { +#ifdef WAF_BUILD +#include "libardour-config.h" +#endif +#include +#include +#include -/** 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; +#include "pbd/compose.h" - for (size_t j=0; j < ports.num_ports(*t); ++j) { - v.push_back(&ports.nth_port_of_type(*t, j)->get_buffer()); - } +#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 LV2_SUPPORT +#include "ardour/lv2_plugin.h" +#include "ardour/lv2_event_buffer.h" +#endif +#if defined WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT +#include "ardour/vestige/aeffectx.h" +#endif - _buffers.push_back(v); - } -} +namespace ARDOUR { /** Create a new, empty BufferSet */ 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(); } - BufferSet::~BufferSet() { - if (!_is_mirror) - clear(); + clear(); } - /** Destroy all contained buffers. */ void BufferSet::clear() { - for (std::vector::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::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(); +#if defined WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT + for (VSTBuffers::iterator i = _vst_buffers.begin(); i != _vst_buffers.end(); ++i) { + delete *i; + } + _vst_buffers.clear (); +#endif + +} + +/** 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. + * + * XXX: this *is* called in a process context; I'm not sure quite what `should not' means above. + */ void -BufferSet::ensure_buffers(const ChanCount& chan_count, size_t buffer_capacity) +BufferSet::attach_buffers (PortSet& ports) { + const ChanCount& count (ports.count()); + + 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]; + v.assign (count.n (*t), (Buffer*) 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 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_jack_port_addresses (PortSet& ports, framecnt_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 */ 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..) @@ -107,24 +176,51 @@ BufferSet::ensure_buffers(size_t num_buffers, DataType type, 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 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))); + } + } +#endif + +#if defined WINDOWS_VST_SUPPORT || defined LXVST_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); 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(); + 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. @@ -132,10 +228,225 @@ BufferSet::available_buffers(DataType type) const 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]; +} + +const Buffer& +BufferSet::get(DataType type, size_t i) const +{ + assert(i < _available.get(type)); + return *_buffers[type][i]; +} + +#ifdef LV2_SUPPORT + +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) { + DEBUG_TRACE (PBD::DEBUG::LV2, string_compose ("%1 bytes of MIDI waiting @ %2\n", mbuf.size(), (void*) mbuf.data())); + for (MidiBuffer::iterator e = mbuf.begin(); e != mbuf.end(); ++e) { + const Evoral::MIDIEvent ev(*e, false); + uint32_t type = LV2Plugin::midi_event_type(); +#ifndef NDEBUG + DEBUG_TRACE (PBD::DEBUG::LV2, string_compose ("\tMIDI event of size %1 @ %2\n", ev.size(), ev.time())); + for (uint16_t x = 0; x < ev.size(); ++x) { + std::stringstream ss; + ss << "\t\tByte[" << x << "] = " << std::hex << (int) ev.buffer()[x] << std::dec << std::endl; + DEBUG_TRACE (PBD::DEBUG::LV2, ss.str()); + } +#endif + 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); +#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 + mbuf.push_back(frames, size, data); + } +} + +#endif /* LV2_SUPPORT */ + +#if defined WINDOWS_VST_SUPPORT || defined LXVST_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; +} + +void +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 /* WINDOWS_VST_SUPPORT */ + +/** Copy buffers of one type from `in' to this BufferSet */ +void +BufferSet::read_from (const BufferSet& in, framecnt_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, framecnt_t nframes) +{ + assert(available() >= in.count()); + + // Copy all buffers 1:1 + for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) { + read_from (in, nframes, *t); + } +} + +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::set_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)->set_is_silent (yn); + } + } + +} } // namespace ARDOUR