X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fbuffer_set.cc;h=92f5272b3b2bee945c8723eb0b2188ff58518e9b;hb=e845b9f9357c4ff471c02b1f63a61275bb4a7d28;hp=2206b8885b1c6d74cc4290d80d3aa8a6cda2496f;hpb=eb296b2c957f574334fae2aefd8b863cf7631769;p=ardour.git diff --git a/libs/ardour/buffer_set.cc b/libs/ardour/buffer_set.cc index 2206b8885b..92f5272b3b 100644 --- a/libs/ardour/buffer_set.cc +++ b/libs/ardour/buffer_set.cc @@ -1,26 +1,47 @@ /* - 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 + +#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/uri_map.h" +#ifdef LV2_SUPPORT +#include "ardour/lv2_plugin.h" +#include "lv2_evbuf.h" +#endif +#if defined WINDOWS_VST_SUPPORT || defined LXVST_SUPPORT +#include "ardour/vestige/aeffectx.h" +#endif namespace ARDOUR { @@ -28,8 +49,9 @@ 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 +78,77 @@ BufferSet::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 + +#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) +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())); - } - + 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::ensure_buffers(const ChanCount& count, size_t buffer_capacity) +BufferSet::get_backend_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) { - 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); + ++i; + } } } - /** Ensure that there are @a num_buffers buffers of type @a type available, * each of size at least @a buffer_size */ @@ -99,12 +158,13 @@ BufferSet::ensure_buffers(DataType type, size_t num_buffers, size_t buffer_capac assert(type != DataType::NIL); 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]; - + // If we're a mirror just make sure we're ok if (_is_mirror) { assert(_count.get(type) >= num_buffers); @@ -115,7 +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) { @@ -124,12 +184,36 @@ 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 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, lv2_evbuf_new(buffer_capacity, + LV2_EVBUF_EVENT, + URIMap::instance().urids.atom_Chunk, + URIMap::instance().urids.atom_Sequence))); + } } +#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); @@ -138,6 +222,17 @@ 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. @@ -149,21 +244,236 @@ 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 LV2_SUPPORT + void -BufferSet::read_from(BufferSet& in, nframes_t nframes, nframes_t offset) +BufferSet::ensure_lv2_bufsize(bool input, size_t i, size_t buffer_capacity) +{ + 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 frames, subframes, type, size; + uint8_t* data; + lv2_evbuf_get(i, &frames, &subframes, &type, &size, &data); + if (type == URIMap::instance().urids.midi_MidiEvent) { + mbuf.push_back(frames, size, data); + } + } +} + +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)); + LV2_Evbuf* evbuf = b.second; + + mbuf.silence(0, 0); + for (LV2_Evbuf_Iterator i = lv2_evbuf_begin(evbuf); + lv2_evbuf_is_valid(i); + i = lv2_evbuf_next(i)) { + uint32_t frames; + uint32_t subframes; + uint32_t type; + uint32_t size; + uint8_t* data; + lv2_evbuf_get(i, &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 + if (type == URIMap::instance().urids.midi_MidiEvent) { + // TODO: Make Ardour event buffers generic so plugins can communicate + 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::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) && o != end (*t); ++i, ++o) { + o->merge_from (*i, nframes); } } +} - set_count(in.count()); +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); + } + } } } // namespace ARDOUR