Paul Davis
d9cebc2edf
git-svn-id: svn://localhost/ardour2/branches/3.0@6942 d708f5d6-7413-0410-9779-e7cbd77b26cf
712 lines
16 KiB
C++
712 lines
16 KiB
C++
/*
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Copyright (C) 2000-2006 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#define __STDC_FORMAT_MACROS 1
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#include <inttypes.h>
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#include <vector>
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#include <string>
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#include <cstdlib>
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#include <cstdio> // so libraptor doesn't complain
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#include <cmath>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <cerrno>
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#include <lrdf.h>
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#include "pbd/compose.h"
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#include "pbd/error.h"
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#include "pbd/xml++.h"
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#include "midi++/manager.h"
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#include "ardour/ardour.h"
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#include "ardour/session.h"
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#include "ardour/audioengine.h"
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#include "ardour/ladspa_plugin.h"
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#include "ardour/buffer_set.h"
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#include "ardour/audio_buffer.h"
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#include "pbd/stl_delete.h"
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#include "i18n.h"
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#include <locale.h>
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using namespace std;
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using namespace ARDOUR;
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using namespace PBD;
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LadspaPlugin::LadspaPlugin (void *mod, AudioEngine& e, Session& session, uint32_t index, nframes_t rate)
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: Plugin (e, session)
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{
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init (mod, index, rate);
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}
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LadspaPlugin::LadspaPlugin (const LadspaPlugin &other)
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: Plugin (other)
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{
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init (other._module, other._index, other._sample_rate);
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for (uint32_t i = 0; i < parameter_count(); ++i) {
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_control_data[i] = other._shadow_data[i];
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_shadow_data[i] = other._shadow_data[i];
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}
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}
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void
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LadspaPlugin::init (void *mod, uint32_t index, nframes_t rate)
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{
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LADSPA_Descriptor_Function dfunc;
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uint32_t i, port_cnt;
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const char *errstr;
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_module = mod;
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_control_data = 0;
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_shadow_data = 0;
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_latency_control_port = 0;
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_was_activated = false;
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dfunc = (LADSPA_Descriptor_Function) dlsym (_module, "ladspa_descriptor");
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if ((errstr = dlerror()) != NULL) {
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error << _("LADSPA: module has no descriptor function.") << endmsg;
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throw failed_constructor();
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}
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if ((_descriptor = dfunc (index)) == 0) {
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error << _("LADSPA: plugin has gone away since discovery!") << endmsg;
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throw failed_constructor();
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}
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_index = index;
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if (LADSPA_IS_INPLACE_BROKEN(_descriptor->Properties)) {
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error << string_compose(_("LADSPA: \"%1\" cannot be used, since it cannot do inplace processing"), _descriptor->Name) << endmsg;
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throw failed_constructor();
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}
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_sample_rate = rate;
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if (_descriptor->instantiate == 0) {
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throw failed_constructor();
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}
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if ((_handle = _descriptor->instantiate (_descriptor, rate)) == 0) {
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throw failed_constructor();
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}
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port_cnt = parameter_count();
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_control_data = new LADSPA_Data[port_cnt];
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_shadow_data = new LADSPA_Data[port_cnt];
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for (i = 0; i < port_cnt; ++i) {
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if (LADSPA_IS_PORT_CONTROL(port_descriptor (i))) {
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connect_port (i, &_control_data[i]);
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if (LADSPA_IS_PORT_OUTPUT(port_descriptor (i)) &&
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strcmp (port_names()[i], X_("latency")) == 0) {
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_latency_control_port = &_control_data[i];
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*_latency_control_port = 0;
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}
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if (!LADSPA_IS_PORT_INPUT(port_descriptor (i))) {
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continue;
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}
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_shadow_data[i] = default_value (i);
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}
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}
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latency_compute_run ();
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}
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LadspaPlugin::~LadspaPlugin ()
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{
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deactivate ();
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cleanup ();
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/* XXX who should close a plugin? */
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// dlclose (module);
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delete [] _control_data;
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delete [] _shadow_data;
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}
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string
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LadspaPlugin::unique_id() const
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{
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char buf[32];
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snprintf (buf, sizeof (buf), "%lu", _descriptor->UniqueID);
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return string (buf);
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}
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float
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LadspaPlugin::default_value (uint32_t port)
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{
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const LADSPA_PortRangeHint *prh = port_range_hints();
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float ret = 0.0f;
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bool bounds_given = false;
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bool sr_scaling = false;
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bool earlier_hint = false;
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/* defaults - case 1 */
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if (LADSPA_IS_HINT_HAS_DEFAULT(prh[port].HintDescriptor)) {
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if (LADSPA_IS_HINT_DEFAULT_MINIMUM(prh[port].HintDescriptor)) {
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ret = prh[port].LowerBound;
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bounds_given = true;
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sr_scaling = true;
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}
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else if (LADSPA_IS_HINT_DEFAULT_LOW(prh[port].HintDescriptor)) {
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if (LADSPA_IS_HINT_LOGARITHMIC(prh[port].HintDescriptor)) {
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ret = exp(log(prh[port].LowerBound) * 0.75f + log(prh[port].UpperBound) * 0.25f);
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}
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else {
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ret = prh[port].LowerBound * 0.75f + prh[port].UpperBound * 0.25f;
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}
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bounds_given = true;
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sr_scaling = true;
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}
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else if (LADSPA_IS_HINT_DEFAULT_MIDDLE(prh[port].HintDescriptor)) {
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if (LADSPA_IS_HINT_LOGARITHMIC(prh[port].HintDescriptor)) {
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ret = exp(log(prh[port].LowerBound) * 0.5f + log(prh[port].UpperBound) * 0.5f);
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}
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else {
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ret = prh[port].LowerBound * 0.5f + prh[port].UpperBound * 0.5f;
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}
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bounds_given = true;
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sr_scaling = true;
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}
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else if (LADSPA_IS_HINT_DEFAULT_HIGH(prh[port].HintDescriptor)) {
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if (LADSPA_IS_HINT_LOGARITHMIC(prh[port].HintDescriptor)) {
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ret = exp(log(prh[port].LowerBound) * 0.25f + log(prh[port].UpperBound) * 0.75f);
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}
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else {
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ret = prh[port].LowerBound * 0.25f + prh[port].UpperBound * 0.75f;
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}
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bounds_given = true;
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sr_scaling = true;
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}
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else if (LADSPA_IS_HINT_DEFAULT_MAXIMUM(prh[port].HintDescriptor)) {
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ret = prh[port].UpperBound;
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bounds_given = true;
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sr_scaling = true;
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}
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else if (LADSPA_IS_HINT_DEFAULT_0(prh[port].HintDescriptor)) {
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ret = 0.0f;
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earlier_hint = true;
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}
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else if (LADSPA_IS_HINT_DEFAULT_1(prh[port].HintDescriptor)) {
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ret = 1.0f;
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earlier_hint = true;
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}
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else if (LADSPA_IS_HINT_DEFAULT_100(prh[port].HintDescriptor)) {
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ret = 100.0f;
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earlier_hint = true;
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}
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else if (LADSPA_IS_HINT_DEFAULT_440(prh[port].HintDescriptor)) {
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ret = 440.0f;
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earlier_hint = true;
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}
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else {
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/* no hint found */
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ret = 0.0f;
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}
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}
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/* defaults - case 2 */
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else if (LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
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!LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
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if (prh[port].LowerBound < 0) {
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ret = 0.0f;
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} else {
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ret = prh[port].LowerBound;
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}
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bounds_given = true;
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sr_scaling = true;
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}
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/* defaults - case 3 */
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else if (!LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
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LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
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if (prh[port].UpperBound > 0) {
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ret = 0.0f;
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} else {
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ret = prh[port].UpperBound;
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}
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bounds_given = true;
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sr_scaling = true;
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}
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/* defaults - case 4 */
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else if (LADSPA_IS_HINT_BOUNDED_BELOW(prh[port].HintDescriptor) &&
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LADSPA_IS_HINT_BOUNDED_ABOVE(prh[port].HintDescriptor)) {
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if (prh[port].LowerBound < 0 && prh[port].UpperBound > 0) {
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ret = 0.0f;
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} else if (prh[port].LowerBound < 0 && prh[port].UpperBound < 0) {
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ret = prh[port].UpperBound;
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} else {
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ret = prh[port].LowerBound;
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}
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bounds_given = true;
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sr_scaling = true;
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}
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/* defaults - case 5 */
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if (LADSPA_IS_HINT_SAMPLE_RATE(prh[port].HintDescriptor) && !earlier_hint) {
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if (bounds_given) {
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if (sr_scaling) {
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ret *= _sample_rate;
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}
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} else {
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ret = _sample_rate;
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}
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}
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return ret;
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}
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void
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LadspaPlugin::set_parameter (uint32_t which, float val)
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{
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if (which < _descriptor->PortCount) {
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_shadow_data[which] = (LADSPA_Data) val;
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#if 0
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ParameterChanged (Parameter(PluginAutomation, 0, which), val); /* EMIT SIGNAL */
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if (which < parameter_count() && controls[which]) {
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controls[which]->Changed ();
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}
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#endif
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} else {
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warning << string_compose (_("illegal parameter number used with plugin \"%1\". This may"
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"indicate a change in the plugin design, and presets may be"
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"invalid"), name())
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<< endmsg;
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}
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}
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float
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LadspaPlugin::get_parameter (uint32_t which) const
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{
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if (LADSPA_IS_PORT_INPUT(port_descriptor (which))) {
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return (float) _shadow_data[which];
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} else {
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return (float) _control_data[which];
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}
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}
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uint32_t
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LadspaPlugin::nth_parameter (uint32_t n, bool& ok) const
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{
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uint32_t x, c;
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ok = false;
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for (c = 0, x = 0; x < _descriptor->PortCount; ++x) {
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if (LADSPA_IS_PORT_CONTROL (port_descriptor (x))) {
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if (c++ == n) {
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ok = true;
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return x;
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}
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}
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}
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return 0;
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}
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XMLNode&
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LadspaPlugin::get_state()
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{
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XMLNode *root = new XMLNode(state_node_name());
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XMLNode *child;
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char buf[16];
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LocaleGuard lg (X_("POSIX"));
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for (uint32_t i = 0; i < parameter_count(); ++i){
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if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
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LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
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child = new XMLNode("Port");
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snprintf(buf, sizeof(buf), "%u", i);
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child->add_property("number", string(buf));
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snprintf(buf, sizeof(buf), "%+f", _shadow_data[i]);
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child->add_property("value", string(buf));
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root->add_child_nocopy (*child);
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}
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}
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return *root;
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}
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bool
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LadspaPlugin::save_preset (string name)
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{
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return Plugin::save_preset (name, "ladspa");
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}
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int
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LadspaPlugin::set_state (const XMLNode& node, int version)
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{
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if (version < 3000) {
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return set_state_2X (node, version);
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}
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XMLNodeList nodes;
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XMLProperty *prop;
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XMLNodeConstIterator iter;
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XMLNode *child;
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const char *port;
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const char *data;
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uint32_t port_id;
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LocaleGuard lg (X_("POSIX"));
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if (node.name() != state_node_name()) {
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error << _("Bad node sent to LadspaPlugin::set_state") << endmsg;
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return -1;
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}
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nodes = node.children ("Port");
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for(iter = nodes.begin(); iter != nodes.end(); ++iter){
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child = *iter;
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if ((prop = child->property("number")) != 0) {
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port = prop->value().c_str();
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} else {
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warning << _("LADSPA: no ladspa port number") << endmsg;
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continue;
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}
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if ((prop = child->property("value")) != 0) {
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data = prop->value().c_str();
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} else {
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warning << _("LADSPA: no ladspa port data") << endmsg;
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continue;
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}
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sscanf (port, "%" PRIu32, &port_id);
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set_parameter (port_id, atof(data));
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}
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latency_compute_run ();
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return 0;
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}
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int
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LadspaPlugin::set_state_2X (const XMLNode& node, int /* version */)
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{
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XMLNodeList nodes;
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XMLProperty *prop;
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XMLNodeConstIterator iter;
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XMLNode *child;
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const char *port;
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const char *data;
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uint32_t port_id;
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LocaleGuard lg (X_("POSIX"));
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if (node.name() != state_node_name()) {
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error << _("Bad node sent to LadspaPlugin::set_state") << endmsg;
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return -1;
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}
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nodes = node.children ("port");
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for(iter = nodes.begin(); iter != nodes.end(); ++iter){
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child = *iter;
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if ((prop = child->property("number")) != 0) {
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port = prop->value().c_str();
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} else {
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warning << _("LADSPA: no ladspa port number") << endmsg;
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continue;
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}
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if ((prop = child->property("value")) != 0) {
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data = prop->value().c_str();
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} else {
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warning << _("LADSPA: no ladspa port data") << endmsg;
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continue;
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}
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sscanf (port, "%" PRIu32, &port_id);
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set_parameter (port_id, atof(data));
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}
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latency_compute_run ();
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return 0;
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}
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int
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LadspaPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc) const
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{
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LADSPA_PortRangeHint prh;
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prh = port_range_hints()[which];
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if (LADSPA_IS_HINT_BOUNDED_BELOW(prh.HintDescriptor)) {
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desc.min_unbound = false;
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if (LADSPA_IS_HINT_SAMPLE_RATE(prh.HintDescriptor)) {
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desc.lower = prh.LowerBound * _session.frame_rate();
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} else {
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desc.lower = prh.LowerBound;
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}
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} else {
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desc.min_unbound = true;
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desc.lower = 0;
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}
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if (LADSPA_IS_HINT_BOUNDED_ABOVE(prh.HintDescriptor)) {
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desc.max_unbound = false;
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if (LADSPA_IS_HINT_SAMPLE_RATE(prh.HintDescriptor)) {
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desc.upper = prh.UpperBound * _session.frame_rate();
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} else {
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desc.upper = prh.UpperBound;
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}
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} else {
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desc.max_unbound = true;
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desc.upper = 4; /* completely arbitrary */
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}
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if (LADSPA_IS_HINT_INTEGER (prh.HintDescriptor)) {
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desc.step = 1.0;
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desc.smallstep = 0.1;
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desc.largestep = 10.0;
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} else {
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float delta = desc.upper - desc.lower;
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desc.step = delta / 1000.0f;
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desc.smallstep = delta / 10000.0f;
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desc.largestep = delta/10.0f;
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}
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desc.toggled = LADSPA_IS_HINT_TOGGLED (prh.HintDescriptor);
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desc.logarithmic = LADSPA_IS_HINT_LOGARITHMIC (prh.HintDescriptor);
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desc.sr_dependent = LADSPA_IS_HINT_SAMPLE_RATE (prh.HintDescriptor);
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desc.integer_step = LADSPA_IS_HINT_INTEGER (prh.HintDescriptor);
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desc.label = port_names()[which];
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return 0;
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}
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string
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LadspaPlugin::describe_parameter (Evoral::Parameter which)
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{
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if (which.type() == PluginAutomation && which.id() < parameter_count()) {
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return port_names()[which.id()];
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} else {
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return "??";
|
|
}
|
|
}
|
|
|
|
ARDOUR::nframes_t
|
|
LadspaPlugin::signal_latency () const
|
|
{
|
|
if (_user_latency) {
|
|
return _user_latency;
|
|
}
|
|
|
|
if (_latency_control_port) {
|
|
return (nframes_t) floor (*_latency_control_port);
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
set<Evoral::Parameter>
|
|
LadspaPlugin::automatable () const
|
|
{
|
|
set<Evoral::Parameter> ret;
|
|
|
|
for (uint32_t i = 0; i < parameter_count(); ++i){
|
|
if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) &&
|
|
LADSPA_IS_PORT_CONTROL(port_descriptor (i))){
|
|
|
|
ret.insert (ret.end(), Evoral::Parameter(PluginAutomation, 0, i));
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
LadspaPlugin::connect_and_run (BufferSet& bufs,
|
|
ChanMapping in_map, ChanMapping out_map,
|
|
nframes_t nframes, nframes_t offset)
|
|
{
|
|
cycles_t now;
|
|
cycles_t then = get_cycles ();
|
|
|
|
uint32_t audio_in_index = 0;
|
|
uint32_t audio_out_index = 0;
|
|
for (uint32_t port_index = 0; port_index < parameter_count(); ++port_index) {
|
|
if (LADSPA_IS_PORT_AUDIO(port_descriptor(port_index))) {
|
|
if (LADSPA_IS_PORT_INPUT(port_descriptor(port_index))) {
|
|
const uint32_t buf_index = in_map.get(DataType::AUDIO, audio_in_index++);
|
|
connect_port(port_index, bufs.get_audio(buf_index).data(offset));
|
|
} else if (LADSPA_IS_PORT_OUTPUT(port_descriptor(port_index))) {
|
|
const uint32_t buf_index = out_map.get(DataType::AUDIO, audio_out_index++);
|
|
connect_port(port_index, bufs.get_audio(buf_index).data(offset));
|
|
}
|
|
}
|
|
}
|
|
|
|
run_in_place (nframes);
|
|
now = get_cycles ();
|
|
set_cycles ((uint32_t) (now - then));
|
|
|
|
return 0;
|
|
}
|
|
|
|
bool
|
|
LadspaPlugin::parameter_is_control (uint32_t param) const
|
|
{
|
|
return LADSPA_IS_PORT_CONTROL(port_descriptor (param));
|
|
}
|
|
|
|
bool
|
|
LadspaPlugin::parameter_is_audio (uint32_t param) const
|
|
{
|
|
return LADSPA_IS_PORT_AUDIO(port_descriptor (param));
|
|
}
|
|
|
|
bool
|
|
LadspaPlugin::parameter_is_output (uint32_t param) const
|
|
{
|
|
return LADSPA_IS_PORT_OUTPUT(port_descriptor (param));
|
|
}
|
|
|
|
bool
|
|
LadspaPlugin::parameter_is_input (uint32_t param) const
|
|
{
|
|
return LADSPA_IS_PORT_INPUT(port_descriptor (param));
|
|
}
|
|
|
|
void
|
|
LadspaPlugin::print_parameter (uint32_t param, char *buf, uint32_t len) const
|
|
{
|
|
if (buf && len) {
|
|
if (param < parameter_count()) {
|
|
snprintf (buf, len, "%.3f", get_parameter (param));
|
|
} else {
|
|
strcat (buf, "0");
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
LadspaPlugin::run_in_place (nframes_t nframes)
|
|
{
|
|
for (uint32_t i = 0; i < parameter_count(); ++i) {
|
|
if (LADSPA_IS_PORT_INPUT(port_descriptor (i)) && LADSPA_IS_PORT_CONTROL(port_descriptor (i))) {
|
|
_control_data[i] = _shadow_data[i];
|
|
}
|
|
}
|
|
_descriptor->run (_handle, nframes);
|
|
}
|
|
|
|
void
|
|
LadspaPlugin::latency_compute_run ()
|
|
{
|
|
if (!_latency_control_port) {
|
|
return;
|
|
}
|
|
|
|
/* we need to run the plugin so that it can set its latency
|
|
parameter.
|
|
*/
|
|
|
|
activate ();
|
|
|
|
uint32_t port_index = 0;
|
|
uint32_t in_index = 0;
|
|
uint32_t out_index = 0;
|
|
const nframes_t bufsize = 1024;
|
|
LADSPA_Data buffer[bufsize];
|
|
|
|
memset(buffer,0,sizeof(LADSPA_Data)*bufsize);
|
|
|
|
/* Note that we've already required that plugins
|
|
be able to handle in-place processing.
|
|
*/
|
|
|
|
port_index = 0;
|
|
|
|
while (port_index < parameter_count()) {
|
|
if (LADSPA_IS_PORT_AUDIO (port_descriptor (port_index))) {
|
|
if (LADSPA_IS_PORT_INPUT (port_descriptor (port_index))) {
|
|
connect_port (port_index, buffer);
|
|
in_index++;
|
|
} else if (LADSPA_IS_PORT_OUTPUT (port_descriptor (port_index))) {
|
|
connect_port (port_index, buffer);
|
|
out_index++;
|
|
}
|
|
}
|
|
port_index++;
|
|
}
|
|
|
|
run_in_place (bufsize);
|
|
deactivate ();
|
|
}
|
|
|
|
PluginPtr
|
|
LadspaPluginInfo::load (Session& session)
|
|
{
|
|
try {
|
|
PluginPtr plugin;
|
|
void *module;
|
|
|
|
if ((module = dlopen (path.c_str(), RTLD_NOW)) == 0) {
|
|
error << string_compose(_("LADSPA: cannot load module from \"%1\""), path) << endmsg;
|
|
error << dlerror() << endmsg;
|
|
return PluginPtr ((Plugin*) 0);
|
|
} else {
|
|
plugin.reset (new LadspaPlugin (module, session.engine(), session, index, session.frame_rate()));
|
|
}
|
|
|
|
plugin->set_info(PluginInfoPtr(new LadspaPluginInfo(*this)));
|
|
return plugin;
|
|
}
|
|
|
|
catch (failed_constructor &err) {
|
|
return PluginPtr ((Plugin*) 0);
|
|
}
|
|
}
|
|
|
|
LadspaPluginInfo::LadspaPluginInfo()
|
|
{
|
|
type = ARDOUR::LADSPA;
|
|
}
|