-
/*
- Copyright (C) 2004 Paul Davis
+ Copyright (C) 2004-2011 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
*/
-#include <inttypes.h>
-
-#include <cmath>
-#include <cerrno>
-#include <fstream>
-#include <cstdlib>
-#include <string>
-#include <cstdio>
-#include <locale.h>
-#include <unistd.h>
-#include <float.h>
-#include <iomanip>
-
-#include <glibmm.h>
-
-#include "pbd/cartesian.h"
-#include "pbd/error.h"
-#include "pbd/failed_constructor.h"
-#include "pbd/xml++.h"
-#include "pbd/enumwriter.h"
-
-#include "evoral/Curve.hpp"
-
-#include "ardour/session.h"
-#include "ardour/panner.h"
-#include "ardour/utils.h"
-#include "ardour/audio_buffer.h"
-
-#include "ardour/runtime_functions.h"
#include "ardour/buffer_set.h"
-#include "ardour/audio_buffer.h"
-#include "ardour/vbap.h"
-
-#include "i18n.h"
+#include "ardour/debug.h"
+#include "ardour/panner.h"
+#include "ardour/pannable.h"
-#include "pbd/mathfix.h"
+#include "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
-using namespace PBD;
-
-float Panner::current_automation_version_number = 1.0;
-
-string EqualPowerStereoPanner::name = "Equal Power Stereo";
-
-/* this is a default mapper of control values to a pan position
- others can be imagined.
-*/
-
-static double direct_control_to_stereo_pan (double fract)
-{
- return BaseStereoPanner::lr_fract_to_azimuth (fract);
-}
-
-StreamPanner::StreamPanner (Panner& p, Evoral::Parameter param)
- : parent (p)
-{
- assert (param.type() != NullAutomation);
-
- _muted = false;
- _mono = false;
-
- /* get our AutomationControl from our parent Panner, creating it if required */
- _control = boost::dynamic_pointer_cast<AutomationControl> (parent.control (param, true));
-}
-
-StreamPanner::~StreamPanner ()
-{
-}
-
-void
-StreamPanner::set_mono (bool yn)
-{
- if (yn != _mono) {
- _mono = yn;
- StateChanged ();
- }
-}
-
-void
-Panner::PanControllable::set_value (double val)
-{
- panner.streampanner (parameter().id()).set_position (AngularVector (direct_control_to_stereo_pan (val), 0.0));
- AutomationControl::set_value(val);
-}
-
-double
-Panner::PanControllable::get_value (void) const
-{
- return AutomationControl::get_value();
-}
-
-void
-StreamPanner::set_muted (bool yn)
-{
- if (yn != _muted) {
- _muted = yn;
- StateChanged ();
- }
-}
-
-void
-StreamPanner::set_position (const AngularVector& av, bool link_call)
-{
- if (!link_call && parent.linked()) {
- parent.set_position (av, *this);
- }
-
- if (_angles != av) {
- _angles = av;
- update ();
- Changed ();
- _control->Changed ();
- }
-}
-
-int
-StreamPanner::set_state (const XMLNode& node, int /*version*/)
-{
- const XMLProperty* prop;
- XMLNodeConstIterator iter;
-
- if ((prop = node.property (X_("muted")))) {
- set_muted (string_is_affirmative (prop->value()));
- }
-
- if ((prop = node.property (X_("mono")))) {
- set_mono (string_is_affirmative (prop->value()));
- }
-
- return 0;
-}
-void
-StreamPanner::add_state (XMLNode& node)
-{
- node.add_property (X_("muted"), (muted() ? "yes" : "no"));
- node.add_property (X_("mono"), (_mono ? "yes" : "no"));
-}
-
-void
-StreamPanner::distribute (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, nframes_t nframes)
-{
- if (_mono) {
- /* we're in mono mode, so just pan the input to all outputs equally */
- int const N = parent.nouts ();
- for (int i = 0; i < N; ++i) {
- mix_buffers_with_gain (obufs.get_audio(i).data(), src.data(), nframes, gain_coeff);
- }
- } else {
- /* normal mode, call the `real' distribute method */
- do_distribute (src, obufs, gain_coeff, nframes);
- }
-}
-
-void
-StreamPanner::distribute_automated (AudioBuffer& src, BufferSet& obufs,
- nframes_t start, nframes_t end, nframes_t nframes, pan_t** buffers)
-{
- if (_mono) {
- /* we're in mono mode, so just pan the input to all outputs equally */
- int const N = parent.nouts ();
- for (int i = 0; i < N; ++i) {
- mix_buffers_with_gain (obufs.get_audio(i).data(), src.data(), nframes, 1.0);
- }
- } else {
- /* normal mode, call the `real' distribute method */
- do_distribute_automated (src, obufs, start, end, nframes, buffers);
- }
-
-}
-
-
-/*---------------------------------------------------------------------- */
-
-BaseStereoPanner::BaseStereoPanner (Panner& p, Evoral::Parameter param)
- : StreamPanner (p, param)
- , left (0.5)
- , right (0.5)
- , left_interp (left)
- , right_interp (right)
-{
-}
-
-BaseStereoPanner::~BaseStereoPanner ()
+Panner::Panner (boost::shared_ptr<Pannable> p)
+ : _frozen (0)
{
-}
-
-int
-BaseStereoPanner::load (istream& in, string path, uint32_t& linecnt)
-{
- char line[128];
- LocaleGuard lg (X_("POSIX"));
-
- _control->list()->clear ();
-
- while (in.getline (line, sizeof (line), '\n')) {
- nframes_t when;
- double value;
-
- ++linecnt;
-
- if (strcmp (line, "end") == 0) {
- break;
- }
-
- if (sscanf (line, "%" PRIu32 " %lf", &when, &value) != 2) {
- warning << string_compose(_("badly formatted pan automation event record at line %1 of %2 (ignored) [%3]"), linecnt, path, line) << endmsg;
- continue;
- }
-
- _control->list()->fast_simple_add (when, value);
- }
-
- /* now that we are done loading */
-
- ((AutomationList*)_control->list().get())->StateChanged ();
-
- return 0;
-}
-
-void
-BaseStereoPanner::do_distribute (AudioBuffer& srcbuf, BufferSet& obufs, gain_t gain_coeff, nframes_t nframes)
-{
- assert(obufs.count().n_audio() == 2);
-
- pan_t delta;
- Sample* dst;
- pan_t pan;
-
- if (_muted) {
- return;
- }
-
- Sample* const src = srcbuf.data();
-
- /* LEFT */
-
- dst = obufs.get_audio(0).data();
-
- if (fabsf ((delta = (left - desired_left))) > 0.002) { // about 1 degree of arc
-
- /* we've moving the pan by an appreciable amount, so we must
- interpolate over 64 frames or nframes, whichever is smaller */
-
- nframes_t const limit = min ((nframes_t)64, nframes);
- nframes_t n;
-
- delta = -(delta / (float) (limit));
-
- for (n = 0; n < limit; n++) {
- left_interp = left_interp + delta;
- left = left_interp + 0.9 * (left - left_interp);
- dst[n] += src[n] * left * gain_coeff;
- }
-
- /* then pan the rest of the buffer; no need for interpolation for this bit */
-
- pan = left * gain_coeff;
-
- mix_buffers_with_gain (dst+n,src+n,nframes-n,pan);
-
- } else {
-
- left = desired_left;
- left_interp = left;
-
- if ((pan = (left * gain_coeff)) != 1.0f) {
-
- if (pan != 0.0f) {
-
- /* pan is 1 but also not 0, so we must do it "properly" */
-
- mix_buffers_with_gain(dst,src,nframes,pan);
-
- /* mark that we wrote into the buffer */
-
- // obufs[0] = 0;
-
- }
-
- } else {
-
- /* pan is 1 so we can just copy the input samples straight in */
-
- mix_buffers_no_gain(dst,src,nframes);
-
- /* mark that we wrote into the buffer */
-
- // obufs[0] = 0;
- }
- }
-
- /* RIGHT */
-
- dst = obufs.get_audio(1).data();
-
- if (fabsf ((delta = (right - desired_right))) > 0.002) { // about 1 degree of arc
-
- /* we're moving the pan by an appreciable amount, so we must
- interpolate over 64 frames or nframes, whichever is smaller */
-
- nframes_t const limit = min ((nframes_t)64, nframes);
- nframes_t n;
-
- delta = -(delta / (float) (limit));
-
- for (n = 0; n < limit; n++) {
- right_interp = right_interp + delta;
- right = right_interp + 0.9 * (right - right_interp);
- dst[n] += src[n] * right * gain_coeff;
- }
-
- /* then pan the rest of the buffer, no need for interpolation for this bit */
-
- pan = right * gain_coeff;
-
- mix_buffers_with_gain(dst+n,src+n,nframes-n,pan);
-
- /* XXX it would be nice to mark the buffer as written to */
-
- } else {
-
- right = desired_right;
- right_interp = right;
-
- if ((pan = (right * gain_coeff)) != 1.0f) {
-
- if (pan != 0.0f) {
-
- /* pan is not 1 but also not 0, so we must do it "properly" */
-
- mix_buffers_with_gain(dst,src,nframes,pan);
-
- /* XXX it would be nice to mark the buffer as written to */
- }
-
- } else {
-
- /* pan is 1 so we can just copy the input samples straight in */
-
- mix_buffers_no_gain(dst,src,nframes);
-
- /* XXX it would be nice to mark the buffer as written to */
- }
- }
-}
-
-/*---------------------------------------------------------------------- */
-
-EqualPowerStereoPanner::EqualPowerStereoPanner (Panner& p, Evoral::Parameter param)
- : BaseStereoPanner (p, param)
-{
- update ();
-
- left = desired_left;
- right = desired_right;
- left_interp = left;
- right_interp = right;
-}
-
-EqualPowerStereoPanner::~EqualPowerStereoPanner ()
-{
-}
-
-void
-EqualPowerStereoPanner::update ()
-{
- /* it would be very nice to split this out into a virtual function
- that can be accessed from BaseStereoPanner and used in do_distribute_automated().
-
- but the place where its used in do_distribute_automated() is a tight inner loop,
- and making "nframes" virtual function calls to compute values is an absurd
- overhead.
- */
-
- /* x == 0 => hard left = 180.0 degrees
- x == 1 => hard right = 0.0 degrees
- */
-
- double _x = BaseStereoPanner::azimuth_to_lr_fract (_angles.azi);
-
- float const panR = _x;
- float const panL = 1 - panR;
-
- float const pan_law_attenuation = -3.0f;
- float const scale = 2.0f - 4.0f * powf (10.0f,pan_law_attenuation/20.0f);
-
- desired_left = panL * (scale * panL + 1.0f - scale);
- desired_right = panR * (scale * panR + 1.0f - scale);
-
- _effective_angles = _angles;
- //_control->set_value(x);
-}
-
-void
-EqualPowerStereoPanner::do_distribute_automated (AudioBuffer& srcbuf, BufferSet& obufs,
- nframes_t start, nframes_t end, nframes_t nframes,
- pan_t** buffers)
-{
- assert (obufs.count().n_audio() == 2);
-
- Sample* dst;
- pan_t* pbuf;
- Sample* const src = srcbuf.data();
-
- /* fetch positional data */
-
- if (!_control->list()->curve().rt_safe_get_vector (start, end, buffers[0], nframes)) {
- /* fallback */
- if (!_muted) {
- do_distribute (srcbuf, obufs, 1.0, nframes);
- }
- return;
- }
-
- /* store effective pan position. do this even if we are muted */
-
- if (nframes > 0) {
- _effective_angles.azi = BaseStereoPanner::lr_fract_to_azimuth (buffers[0][nframes-1]);
- }
-
- if (_muted) {
- return;
- }
-
- /* apply pan law to convert positional data into pan coefficients for
- each buffer (output)
- */
-
- const float pan_law_attenuation = -3.0f;
- const float scale = 2.0f - 4.0f * powf (10.0f,pan_law_attenuation/20.0f);
-
- for (nframes_t n = 0; n < nframes; ++n) {
-
- float const panR = buffers[0][n];
- float const panL = 1 - panR;
-
- buffers[0][n] = panL * (scale * panL + 1.0f - scale);
- buffers[1][n] = panR * (scale * panR + 1.0f - scale);
- }
-
- /* LEFT */
-
- dst = obufs.get_audio(0).data();
- pbuf = buffers[0];
-
- for (nframes_t n = 0; n < nframes; ++n) {
- dst[n] += src[n] * pbuf[n];
- }
-
- /* XXX it would be nice to mark the buffer as written to */
-
- /* RIGHT */
-
- dst = obufs.get_audio(1).data();
- pbuf = buffers[1];
-
- for (nframes_t n = 0; n < nframes; ++n) {
- dst[n] += src[n] * pbuf[n];
- }
-
- /* XXX it would be nice to mark the buffer as written to */
-}
-
-StreamPanner*
-EqualPowerStereoPanner::factory (Panner& parent, Evoral::Parameter param, Speakers& /* ignored */)
-{
- return new EqualPowerStereoPanner (parent, param);
-}
-
-XMLNode&
-EqualPowerStereoPanner::get_state (void)
-{
- return state (true);
-}
-
-XMLNode&
-EqualPowerStereoPanner::state (bool /*full_state*/)
-{
- XMLNode* root = new XMLNode ("StreamPanner");
- char buf[64];
- LocaleGuard lg (X_("POSIX"));
-
- snprintf (buf, sizeof (buf), "%.12g", _angles.azi);
- root->add_property (X_("azimuth"), buf);
- root->add_property (X_("type"), EqualPowerStereoPanner::name);
-
- // XXX: dont save automation here... its part of the automatable panner now.
-
- StreamPanner::add_state (*root);
-
- root->add_child_nocopy (_control->get_state ());
-
- return *root;
-}
-
-int
-EqualPowerStereoPanner::set_state (const XMLNode& node, int version)
-{
- const XMLProperty* prop;
- LocaleGuard lg (X_("POSIX"));
-
- if ((prop = node.property (X_("azimuth")))) {
- AngularVector a (atof (prop->value().c_str()), 0.0);
- set_position (a, true);
- } else if ((prop = node.property (X_("x")))) {
- /* old school cartesian positioning */
- AngularVector a;
- a.azi = BaseStereoPanner::lr_fract_to_azimuth (atof (prop->value().c_str()));
- set_position (a, true);
- }
-
- StreamPanner::set_state (node, version);
-
- for (XMLNodeConstIterator iter = node.children().begin(); iter != node.children().end(); ++iter) {
-
- if ((*iter)->name() == Controllable::xml_node_name) {
- if ((prop = (*iter)->property("name")) != 0 && prop->value() == "panner") {
- _control->set_state (**iter, version);
- }
-
- } else if ((*iter)->name() == X_("Automation")) {
-
- _control->alist()->set_state (*((*iter)->children().front()), version);
-
- if (_control->alist()->automation_state() != Off) {
- double degrees = BaseStereoPanner::lr_fract_to_azimuth (_control->list()->eval (parent.session().transport_frame()));
- set_position (AngularVector (degrees, 0.0));
- }
- }
- }
-
- return 0;
-}
-
-Panner::Panner (string name, Session& s)
- : SessionObject (s, name)
- , Automatable (s)
-{
- //set_name_old_auto (name);
- set_name (name);
-
- _linked = false;
- _link_direction = SameDirection;
- _bypassed = false;
- _mono = false;
+ // boost_debug_shared_ptr_mark_interesting (this, "panner");
+ _pannable = p;
}
Panner::~Panner ()
{
+ DEBUG_TRACE(PBD::DEBUG::Destruction, string_compose ("panner @ %1 destructor, pannable is %2 @ %3\n", this, _pannable, &_pannable));
}
-void
-Panner::set_linked (bool yn)
-{
- if (yn != _linked) {
- _linked = yn;
- _session.set_dirty ();
- LinkStateChanged (); /* EMIT SIGNAL */
- }
-}
-
-void
-Panner::set_link_direction (LinkDirection ld)
-{
- if (ld != _link_direction) {
- _link_direction = ld;
- _session.set_dirty ();
- LinkStateChanged (); /* EMIT SIGNAL */
- }
-}
-
-
-void
-Panner::set_bypassed (bool yn)
-{
- if (yn != _bypassed) {
- _bypassed = yn;
- StateChanged ();
- }
-}
-
-
-void
-Panner::reset_to_default ()
+XMLNode&
+Panner::get_state ()
{
- vector<float> positions;
-
- switch (outputs.size()) {
- case 0:
- case 1:
- return;
- }
-
- if (outputs.size() == 2) {
- AngularVector a;
- switch (_streampanners.size()) {
- case 1:
- a.azi = 90.0; /* "front" or "top", in degrees */
- _streampanners.front()->set_position (a);
- _streampanners.front()->pan_control()->list()->reset_default (0.5);
- return;
- break;
- case 2:
- a.azi = 180.0; /* "left", in degrees */
- _streampanners.front()->set_position (a);
- _streampanners.front()->pan_control()->list()->reset_default (0.0);
- a.azi = 0.0; /* "right", in degrees */
- _streampanners.back()->set_position (a);
- _streampanners.back()->pan_control()->list()->reset_default (1.0);
- return;
- default:
- break;
- }
- }
-
- vector<Output>::iterator o;
- vector<StreamPanner*>::iterator p;
-
- for (o = outputs.begin(), p = _streampanners.begin(); o != outputs.end() && p != _streampanners.end(); ++o, ++p) {
- (*p)->set_position ((*o).position);
- }
+ return *(new XMLNode (X_("Panner")));
}
void
-Panner::reset_streampanner (uint32_t which)
+Panner::distribute (BufferSet& ibufs, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes)
{
- AngularVector a;
-
- if (which >= _streampanners.size() || which >= outputs.size()) {
- return;
- }
-
- switch (outputs.size()) {
- case 0:
- case 1:
- return;
-
- case 2:
- switch (_streampanners.size()) {
- case 1:
- /* stereo out, 1 stream, default = middle */
- a.azi = 90.0; /* "front" or "top", in degrees */
- _streampanners.front()->set_position (a);
- _streampanners.front()->pan_control()->list()->reset_default (0.5);
- break;
- case 2:
- /* stereo out, 2 streams, default = hard left/right */
- if (which == 0) {
- a.azi = 180.0; /* "left", in degrees */
- _streampanners.front()->set_position (a);
- _streampanners.front()->pan_control()->list()->reset_default (0.0);
- } else {
- a.azi = 0.0; /* "right", in degrees */
- _streampanners.back()->set_position (a);
- _streampanners.back()->pan_control()->list()->reset_default (1.0);
- }
- break;
- }
- return;
-
- default:
- _streampanners[which]->set_position (outputs[which].position);
- }
-}
-
-/**
- * Reset the panner with a given number of outs and panners (and hence inputs)
- *
- * \param nouts Number of outputs.
- * \param npans Number of panners.
- */
-void
-Panner::reset (uint32_t nouts, uint32_t npans)
-{
- uint32_t n;
- bool changed = false;
- bool do_not_and_did_not_need_panning = ((nouts < 2) && (outputs.size() < 2));
-
- /* if new and old config don't need panning, or if
- the config hasn't changed, we're done.
- */
-
- if (do_not_and_did_not_need_panning ||
- ((nouts == outputs.size()) && (npans == _streampanners.size()))) {
- return;
- }
-
- n = _streampanners.size();
- clear_panners ();
-
- if (n != npans) {
- changed = true;
- }
-
- n = outputs.size();
- outputs.clear ();
-
- if (n != nouts) {
- changed = true;
- }
-
- if (nouts < 2) {
- /* no need for panning with less than 2 outputs */
- if (changed) {
- Changed (); /* EMIT SIGNAL */
- }
- return;
- }
-
- switch (nouts) {
- case 0:
- /* XXX: this can never happen */
- break;
-
- case 1:
- /* XXX: this can never happen */
- fatal << _("programming error:")
- << X_("Panner::reset() called with a single output")
- << endmsg;
- /*NOTREACHED*/
- break;
-
- case 2: // line
- outputs.push_back (Output (AngularVector (180.0, 0.0)));
- outputs.push_back (Output (AngularVector (0.0, 0,0)));
- for (n = 0; n < npans; ++n) {
- _streampanners.push_back (new EqualPowerStereoPanner (*this, Evoral::Parameter(PanAutomation, 0, n)));
- }
- break;
-
- default:
- setup_speakers (nouts);
- for (n = 0; n < npans; ++n) {
- _streampanners.push_back (new VBAPanner (*this, Evoral::Parameter(PanAutomation, 0, n), _session.get_speakers()));
- }
- break;
- }
-
- for (std::vector<StreamPanner*>::iterator x = _streampanners.begin(); x != _streampanners.end(); ++x) {
- (*x)->update ();
- }
-
- /* must emit Changed here, otherwise the changes to the pan_control below raise further
- signals which the GUI is not prepared for until it has seen the Changed here.
- */
-
- if (changed) {
- Changed (); /* EMIT SIGNAL */
- }
-
- /* force hard left/right panning in a common case: 2in/2out
- */
-
- if (npans == 2 && outputs.size() == 2) {
-
- /* Do this only if we changed configuration, or our configuration
- appears to be the default set up (zero degrees)
- */
-
- AngularVector left;
- AngularVector right;
-
- left = _streampanners.front()->get_position ();
- right = _streampanners.back()->get_position ();
-
- if (changed || ((left.azi == 0.0) && (right.azi == 0.0))) {
-
- _streampanners.front()->set_position (AngularVector (180.0, 0.0));
- _streampanners.front()->pan_control()->list()->reset_default (0.0);
-
- _streampanners.back()->set_position (AngularVector (0.0, 0.0));
- _streampanners.back()->pan_control()->list()->reset_default (1.0);
- }
+ uint32_t which = 0;
- } else if (npans > 1 && outputs.size() > 2) {
-
- /* 2d panning: spread signals equally around a circle */
-
- double degree_step = 360.0 / nouts;
- double deg;
-
- /* even number of signals? make sure the top two are either side of "top".
- otherwise, just start at the "top" (90.0 degrees) and rotate around
- */
-
- if (npans % 2) {
- deg = 90.0 - degree_step;
- } else {
- deg = 90.0;
- }
-
- for (std::vector<StreamPanner*>::iterator x = _streampanners.begin(); x != _streampanners.end(); ++x) {
- (*x)->set_position (AngularVector (deg, 0.0));
- deg += degree_step;
- }
+ for (BufferSet::audio_iterator src = ibufs.audio_begin(); src != ibufs.audio_end(); ++src, ++which) {
+ distribute_one (*src, obufs, gain_coeff, nframes, which);
}
}
void
-Panner::remove (uint32_t which)
+Panner::distribute_automated (BufferSet& ibufs, BufferSet& obufs,
+ framepos_t start, framepos_t end, pframes_t nframes, pan_t** buffers)
{
- vector<StreamPanner*>::iterator i;
- for (i = _streampanners.begin(); i != _streampanners.end() && which; ++i, --which) {}
+ uint32_t which = 0;
- if (i != _streampanners.end()) {
- delete *i;
- _streampanners.erase (i);
+ for (BufferSet::audio_iterator src = ibufs.audio_begin(); src != ibufs.audio_end(); ++src, ++which) {
+ distribute_one_automated (*src, obufs, start, end, nframes, buffers, which);
}
}
-
-/** Remove all our StreamPanners */
-void
-Panner::clear_panners ()
-{
- for (vector<StreamPanner*>::iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
- delete *i;
- }
-
- _streampanners.clear ();
-}
-
void
Panner::set_automation_style (AutoStyle style)
{
- for (vector<StreamPanner*>::iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
- ((AutomationList*)(*i)->pan_control()->list().get())->set_automation_style (style);
- }
- _session.set_dirty ();
+ _pannable->set_automation_style (style);
}
void
Panner::set_automation_state (AutoState state)
{
- for (vector<StreamPanner*>::iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
- ((AutomationList*)(*i)->pan_control()->list().get())->set_automation_state (state);
- }
- _session.set_dirty ();
+ _pannable->set_automation_state (state);
}
AutoState
Panner::automation_state () const
{
- boost::shared_ptr<AutomationList> l;
- if (!empty()) {
- boost::shared_ptr<AutomationControl> control = _streampanners.front()->pan_control();
- if (control) {
- l = boost::dynamic_pointer_cast<AutomationList>(control->list());
- }
- }
-
- return l ? l->automation_state() : Off;
+ return _pannable->automation_state();
}
AutoStyle
Panner::automation_style () const
{
- boost::shared_ptr<AutomationList> l;
- if (!empty()) {
- boost::shared_ptr<AutomationControl> control = _streampanners.front()->pan_control();
- if (control) {
- l = boost::dynamic_pointer_cast<AutomationList>(control->list());
- }
- }
-
- return l ? l->automation_style() : Absolute;
-}
-
-struct PanPlugins {
- string name;
- uint32_t nouts;
- StreamPanner* (*factory)(Panner&, Evoral::Parameter, Speakers&);
-};
-
-PanPlugins pan_plugins[] = {
- { EqualPowerStereoPanner::name, 2, EqualPowerStereoPanner::factory },
- { VBAPanner::name, 3, VBAPanner::factory },
- { string (""), 0, 0 }
-};
-
-XMLNode&
-Panner::get_state (void)
-{
- return state (true);
-}
-
-XMLNode&
-Panner::state (bool full)
-{
- XMLNode* node = new XMLNode ("Panner");
-
- char buf[32];
-
- node->add_property (X_("linked"), (_linked ? "yes" : "no"));
- node->add_property (X_("link_direction"), enum_2_string (_link_direction));
- node->add_property (X_("bypassed"), (bypassed() ? "yes" : "no"));
-
- for (vector<Panner::Output>::iterator o = outputs.begin(); o != outputs.end(); ++o) {
- XMLNode* onode = new XMLNode (X_("Output"));
- snprintf (buf, sizeof (buf), "%.12g", (*o).position.azi);
- onode->add_property (X_("azimuth"), buf);
- snprintf (buf, sizeof (buf), "%.12g", (*o).position.ele);
- onode->add_property (X_("elevation"), buf);
- node->add_child_nocopy (*onode);
- }
-
- for (vector<StreamPanner*>::const_iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
- node->add_child_nocopy ((*i)->state (full));
- }
-
- node->add_child_nocopy (get_automation_xml_state ());
-
- return *node;
-}
-
-int
-Panner::set_state (const XMLNode& node, int version)
-{
- XMLNodeList nlist;
- XMLNodeConstIterator niter;
- const XMLProperty *prop;
- uint32_t i;
- uint32_t num_panners = 0;
- StreamPanner* sp;
- LocaleGuard lg (X_("POSIX"));
-
- clear_panners ();
-
- ChanCount ins = ChanCount::ZERO;
- ChanCount outs = ChanCount::ZERO;
-
- // XXX: this might not be necessary anymore
- outputs.clear ();
-
- if ((prop = node.property (X_("linked"))) != 0) {
- set_linked (string_is_affirmative (prop->value()));
- }
-
- if ((prop = node.property (X_("bypassed"))) != 0) {
- set_bypassed (string_is_affirmative (prop->value()));
- }
-
- if ((prop = node.property (X_("link_direction"))) != 0) {
- LinkDirection ld; /* here to provide type information */
- set_link_direction (LinkDirection (string_2_enum (prop->value(), ld)));
- }
-
- nlist = node.children();
-
- for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
- if ((*niter)->name() == X_("Output")) {
-
- AngularVector a;
-
- if ((prop = (*niter)->property (X_("azimuth")))) {
- sscanf (prop->value().c_str(), "%lg", &a.azi);
- } else if ((prop = (*niter)->property (X_("x")))) {
- /* old school cartesian */
- a.azi = BaseStereoPanner::lr_fract_to_azimuth (atof (prop->value().c_str()));
- }
-
- if ((prop = (*niter)->property (X_("elevation")))) {
- sscanf (prop->value().c_str(), "%lg", &a.ele);
- }
-
- outputs.push_back (Output (a));
- }
- }
-
- for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
-
- if ((*niter)->name() == X_("StreamPanner")) {
-
- if ((prop = (*niter)->property (X_("type")))) {
-
- for (i = 0; pan_plugins[i].factory; ++i) {
- if (prop->value() == pan_plugins[i].name) {
-
-
- /* note that we assume that all the stream panners
- are of the same type. pretty good
- assumption, but it's still an assumption.
- */
-
- sp = pan_plugins[i].factory (*this, Evoral::Parameter(PanAutomation, 0, num_panners), _session.get_speakers ());
- num_panners++;
-
- if (sp->set_state (**niter, version) == 0) {
- _streampanners.push_back (sp);
- }
-
- break;
- }
- }
-
-
- if (!pan_plugins[i].factory) {
- error << string_compose (_("Unknown panner plugin \"%1\" found in pan state - ignored"),
- prop->value())
- << endmsg;
- }
-
- } else {
- error << _("panner plugin node has no type information!")
- << endmsg;
- return -1;
- }
-
- }
- }
-
- reset (outputs.size (), num_panners);
- /* don't try to do old-school automation loading if it wasn't marked as existing */
-
- if ((prop = node.property (X_("automation")))) {
-
- /* automation path is relative */
-
- automation_path = Glib::build_filename(_session.automation_dir(), prop->value ());
- }
-
- for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
- if ((*niter)->name() == X_("Automation")) {
- set_automation_xml_state (**niter, Evoral::Parameter (PanAutomation));
- }
- }
-
- return 0;
+ return _pannable->automation_style ();
}
bool
Panner::touching () const
{
- for (vector<StreamPanner*>::const_iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
- if (((AutomationList*)(*i)->pan_control()->list().get())->touching ()) {
- return true;
- }
- }
-
- return false;
+ return _pannable->touching ();
}
-void
-Panner::set_position (const AngularVector& a, StreamPanner& orig)
+set<Evoral::Parameter>
+Panner::what_can_be_automated() const
{
- AngularVector delta;
- AngularVector new_position;
-
- delta = orig.get_position() - a;
-
- if (_link_direction == SameDirection) {
-
- for (vector<StreamPanner*>::iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
- if (*i == &orig) {
- (*i)->set_position (a, true);
- } else {
- new_position = (*i)->get_position() + delta;
- (*i)->set_position (new_position, true);
- }
- }
-
- } else {
-
- for (vector<StreamPanner*>::iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
- if (*i == &orig) {
- (*i)->set_position (a, true);
- } else {
- new_position = (*i)->get_position() - delta;
- (*i)->set_position (new_position, true);
- }
- }
- }
+ return _pannable->what_can_be_automated ();
}
-void
-Panner::distribute_no_automation (BufferSet& inbufs, BufferSet& outbufs, nframes_t nframes, gain_t gain_coeff)
+string
+Panner::describe_parameter (Evoral::Parameter p)
{
- if (outbufs.count().n_audio() == 0) {
- // Don't want to lose audio...
- assert(inbufs.count().n_audio() == 0);
- return;
- }
-
- // We shouldn't be called in the first place...
- assert(!bypassed());
- assert(!empty());
-
-
- if (outbufs.count().n_audio() == 1) {
-
- AudioBuffer& dst = outbufs.get_audio(0);
-
- if (gain_coeff == 0.0f) {
-
- /* only one output, and gain was zero, so make it silent */
-
- dst.silence (nframes);
-
- } else if (gain_coeff == 1.0f){
-
- /* mix all buffers into the output */
-
- // copy the first
- dst.read_from(inbufs.get_audio(0), nframes);
-
- // accumulate starting with the second
- if (inbufs.count().n_audio() > 0) {
- BufferSet::audio_iterator i = inbufs.audio_begin();
- for (++i; i != inbufs.audio_end(); ++i) {
- dst.merge_from(*i, nframes);
- }
- }
-
- } else {
-
- /* mix all buffers into the output, scaling them all by the gain */
-
- // copy the first
- dst.read_from(inbufs.get_audio(0), nframes);
-
- // accumulate (with gain) starting with the second
- if (inbufs.count().n_audio() > 0) {
- BufferSet::audio_iterator i = inbufs.audio_begin();
- for (++i; i != inbufs.audio_end(); ++i) {
- dst.accumulate_with_gain_from(*i, nframes, gain_coeff);
- }
- }
-
- }
-
- return;
- }
-
- /* the terrible silence ... */
- for (BufferSet::audio_iterator i = outbufs.audio_begin(); i != outbufs.audio_end(); ++i) {
- i->silence(nframes);
- }
-
- BufferSet::audio_iterator i = inbufs.audio_begin();
-
- for (vector<StreamPanner*>::iterator pan = _streampanners.begin(); pan != _streampanners.end() && i != inbufs.audio_end(); ++pan, ++i) {
- (*pan)->distribute (*i, outbufs, gain_coeff, nframes);
- }
+ return _pannable->describe_parameter (p);
}
-void
-Panner::run (BufferSet& inbufs, BufferSet& outbufs, framepos_t start_frame, framepos_t end_frame, nframes_t nframes)
-{
- if (outbufs.count().n_audio() == 0) {
- // Failing to deliver audio we were asked to deliver is a bug
- assert(inbufs.count().n_audio() == 0);
- return;
- }
-
- // We shouldn't be called in the first place...
- assert(!bypassed());
- assert(!empty());
-
- // If we shouldn't play automation defer to distribute_no_automation
- if (!(automation_state() & Play || ((automation_state() & Touch) && !touching()))) {
-
- // Speed quietning
- gain_t gain_coeff = 1.0;
-
- if (fabsf(_session.transport_speed()) > 1.5f && Config->get_quieten_at_speed ()) {
- gain_coeff = speed_quietning;
- }
-
- distribute_no_automation (inbufs, outbufs, nframes, gain_coeff);
- return;
- }
-
- // Otherwise.. let the automation flow, baby
-
- if (outbufs.count().n_audio() == 1) {
-
- AudioBuffer& dst = outbufs.get_audio(0);
-
- // FIXME: apply gain automation?
-
- // copy the first
- dst.read_from(inbufs.get_audio(0), nframes);
-
- // accumulate starting with the second
- BufferSet::audio_iterator i = inbufs.audio_begin();
- for (++i; i != inbufs.audio_end(); ++i) {
- dst.merge_from(*i, nframes);
- }
-
- return;
- }
-
- // More than 1 output, we should have 1 panner for each input
- //assert(_streampanners.size() == inbufs.count().n_audio());
-
- /* the terrible silence ... */
- for (BufferSet::audio_iterator i = outbufs.audio_begin(); i != outbufs.audio_end(); ++i) {
- i->silence(nframes);
- }
-
- BufferSet::audio_iterator i = inbufs.audio_begin();
- for (vector<StreamPanner*>::iterator pan = _streampanners.begin(); pan != _streampanners.end(); ++pan, ++i) {
- (*pan)->distribute_automated (*i, outbufs, start_frame, end_frame, nframes, _session.pan_automation_buffer());
- }
-}
-
-/* old school automation handling */
-
-/*
-void
-Panner::set_name (string str)
+string
+Panner::value_as_string (boost::shared_ptr<const AutomationControl> ac) const
{
- automation_path = Glib::build_filename(_session.automation_dir(),
- _session.snap_name() + "-pan-" + legalize_for_path (str) + ".automation");
+ return _pannable->value_as_string (ac);
}
-*/
int
-Panner::load ()
+Panner::set_state (XMLNode const &, int)
{
- char line[128];
- uint32_t linecnt = 0;
- float version;
- vector<StreamPanner*>::iterator sp;
- LocaleGuard lg (X_("POSIX"));
-
- if (automation_path.length() == 0) {
- return 0;
- }
-
- if (access (automation_path.c_str(), F_OK)) {
- return 0;
- }
-
- ifstream in (automation_path.c_str());
-
- if (!in) {
- error << string_compose (_("cannot open pan automation file %1 (%2)"),
- automation_path, strerror (errno))
- << endmsg;
- return -1;
- }
-
- sp = _streampanners.begin();
-
- while (in.getline (line, sizeof(line), '\n')) {
-
- if (++linecnt == 1) {
- if (memcmp (line, X_("version"), 7) == 0) {
- if (sscanf (line, "version %f", &version) != 1) {
- error << string_compose(_("badly formed version number in pan automation event file \"%1\""), automation_path) << endmsg;
- return -1;
- }
- } else {
- error << string_compose(_("no version information in pan automation event file \"%1\" (first line = %2)"),
- automation_path, line) << endmsg;
- return -1;
- }
-
- continue;
- }
-
- if (strlen (line) == 0 || line[0] == '#') {
- continue;
- }
-
- if (strcmp (line, "begin") == 0) {
-
- if (sp == _streampanners.end()) {
- error << string_compose (_("too many panner states found in pan automation file %1"),
- automation_path)
- << endmsg;
- return -1;
- }
-
- if ((*sp)->load (in, automation_path, linecnt)) {
- return -1;
- }
-
- ++sp;
- }
- }
-
return 0;
}
void
-Panner::set_mono (bool yn)
+Panner::freeze ()
{
- if (yn != _mono) {
- _mono = yn;
- StateChanged ();
- }
-
- for (vector<StreamPanner*>::iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
- (*i)->set_mono (yn);
- }
-}
-
-string
-Panner::value_as_string (double v)
-{
- if (Panner::equivalent (v, 0.5)) {
- return _("C");
- } else if (equivalent (v, 0)) {
- return _("L");
- } else if (equivalent (v, 1)) {
- return _("R");
- } else if (v < 0.5) {
- stringstream s;
- s << fixed << setprecision (0) << _("L") << ((0.5 - v) * 200) << "%";
- return s.str();
- } else {
- stringstream s;
- s << fixed << setprecision (0) << _("R") << ((v -0.5) * 200) << "%";
- return s.str ();
- }
-
- return "";
+ _frozen++;
}
void
-Panner::setup_speakers (uint32_t nouts)
+Panner::thaw ()
{
- switch (nouts) {
- case 3:
- /* top, bottom kind-of-left & bottom kind-of-right */
- outputs.push_back (AngularVector (90.0, 0.0));
- outputs.push_back (AngularVector (215.0, 0,0));
- outputs.push_back (AngularVector (335.0, 0,0));
- break;
- case 4:
- /* clockwise from top left */
- outputs.push_back (AngularVector (135.0, 0.0));
- outputs.push_back (AngularVector (45.0, 0.0));
- outputs.push_back (AngularVector (335.0, 0.0));
- outputs.push_back (AngularVector (215.0, 0.0));
- break;
-
- default:
- {
- double degree_step = 360.0 / nouts;
- double deg;
- uint32_t n;
-
- /* even number of speakers? make sure the top two are either side of "top".
- otherwise, just start at the "top" (90.0 degrees) and rotate around
- */
-
- if (nouts % 2) {
- deg = 90.0 - degree_step;
- } else {
- deg = 90.0;
- }
- for (n = 0; n < nouts; ++n, deg += degree_step) {
- outputs.push_back (Output (AngularVector (deg, 0.0)));
- }
- }
- }
-
- Speakers& speakers (_session.get_speakers());
-
- speakers.clear_speakers ();
-
- for (vector<Output>::iterator o = outputs.begin(); o != outputs.end(); ++o) {
- speakers.add_speaker ((*o).position);
+ if (_frozen > 0.0) {
+ _frozen--;
}
}
projects / ardour.git / blobdiff