+
/*
Copyright (C) 2004 Paul Davis
*/
-#define __STDC_FORMAT_MACROS 1
#include <inttypes.h>
#include <cmath>
#include <glibmm.h>
+#include "pbd/cartesian.h"
+#include "pbd/convert.h"
#include "pbd/error.h"
#include "pbd/failed_constructor.h"
#include "pbd/xml++.h"
#include "ardour/runtime_functions.h"
#include "ardour/buffer_set.h"
#include "ardour/audio_buffer.h"
+#include "ardour/vbap.h"
#include "i18n.h"
float Panner::current_automation_version_number = 1.0;
string EqualPowerStereoPanner::name = "Equal Power Stereo";
-string Multi2dPanner::name = "Multiple (2D)";
/* this is a default mapper of control values to a pan position
others can be imagined.
*/
-static pan_t direct_control_to_pan (double fract)
+static double direct_control_to_stereo_pan (double fract)
{
- return fract;
+ return BaseStereoPanner::lr_fract_to_azimuth (fract);
}
StreamPanner::StreamPanner (Panner& p, Evoral::Parameter param)
: parent (p)
+ , _control (new PanControllable (parent.session(), _("direction"), this, param))
{
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));
-
- _x = 0.5;
- _y = 0.5;
- _z = 0.5;
+ p.add_control (_control);
}
StreamPanner::~StreamPanner ()
}
}
+double
+StreamPanner::PanControllable::lower () const
+{
+ switch (parameter().id()) {
+ case 200: /* width */
+ return -1.0;
+ default:
+ return 0.0;
+ }
+}
+
void
-Panner::PanControllable::set_value (double val)
+StreamPanner::PanControllable::set_value (double val)
{
- panner.streampanner (parameter().id()).set_position (direct_control_to_pan (val));
- AutomationControl::set_value(val);
+ Panner& p (streampanner->get_parent());
+ switch (parameter().id()) {
+ case 100:
+ /* position */
+ val = max (min (val, 1.0), 0.0);
+ if (p.set_stereo_pan (val, p.width_control()->get_value())) {
+ AutomationControl::set_value(val);
+ }
+ break;
+
+ case 200:
+ /* width */
+ val = max (min (val, 1.0), -1.0);
+ if (p.set_stereo_pan (p.direction_control()->get_value(), val)) {
+ AutomationControl::set_value(val);
+ }
+ break;
+
+ default:
+ streampanner->set_position (AngularVector (direct_control_to_stereo_pan (val), 0.0));
+ AutomationControl::set_value(val);
+ break;
+ }
+
}
double
-Panner::PanControllable::get_value (void) const
+StreamPanner::PanControllable::get_value (void) const
{
return AutomationControl::get_value();
}
}
void
-StreamPanner::set_position (float xpos, bool link_call)
-{
- if (!link_call && parent.linked()) {
- parent.set_position (xpos, *this);
- }
-
- if (_x != xpos) {
- _x = xpos;
- update ();
- Changed ();
- _control->Changed ();
- }
-}
-
-void
-StreamPanner::set_position (float xpos, float ypos, bool link_call)
-{
- if (!link_call && parent.linked()) {
- parent.set_position (xpos, ypos, *this);
- }
-
- if (_x != xpos || _y != ypos) {
- _x = xpos;
- _y = ypos;
- update ();
- Changed ();
- _control->Changed ();
- }
-}
-
-void
-StreamPanner::set_position (float xpos, float ypos, float zpos, bool link_call)
+StreamPanner::set_position (const AngularVector& av, bool link_call)
{
if (!link_call && parent.linked()) {
- parent.set_position (xpos, ypos, zpos, *this);
+ parent.set_position (av, *this);
}
- if (_x != xpos || _y != ypos || _z != zpos) {
- _x = xpos;
- _y = ypos;
- _z = zpos;
+ if (_angles != av) {
+ _angles = av;
update ();
Changed ();
_control->Changed ();
}
int
-StreamPanner::set_state (const XMLNode& node, int /*version*/)
+StreamPanner::set_state (const XMLNode& node, int version)
{
const XMLProperty* prop;
XMLNodeConstIterator iter;
set_mono (string_is_affirmative (prop->value()));
}
+ 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() == "direction") {
+ _control->set_state (**iter, version);
+ }
+ }
+ }
+
return 0;
}
-void
-StreamPanner::add_state (XMLNode& node)
+XMLNode&
+StreamPanner::get_state ()
{
- node.add_property (X_("muted"), (muted() ? "yes" : "no"));
- node.add_property (X_("mono"), (_mono ? "yes" : "no"));
+ XMLNode* node = new XMLNode (X_("StreamPanner"));
+ node->add_property (X_("muted"), (muted() ? "yes" : "no"));
+ node->add_property (X_("mono"), (_mono ? "yes" : "no"));
+ node->add_child_nocopy (_control->get_state ());
+ return *node;
}
void
-StreamPanner::distribute (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, nframes_t nframes)
+StreamPanner::distribute (AudioBuffer& src, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes)
{
if (_mono) {
/* we're in mono mode, so just pan the input to all outputs equally */
void
StreamPanner::distribute_automated (AudioBuffer& src, BufferSet& obufs,
- nframes_t start, nframes_t end, nframes_t nframes, pan_t** buffers)
+ framepos_t start, framepos_t end, pframes_t nframes, pan_t** buffers)
{
if (_mono) {
/* we're in mono mode, so just pan the input to all outputs equally */
_control->list()->clear ();
while (in.getline (line, sizeof (line), '\n')) {
- nframes_t when;
+ framepos_t when;
double value;
++linecnt;
break;
}
- if (sscanf (line, "%" PRIu32 " %lf", &when, &value) != 2) {
+ if (sscanf (line, "%" PRIu64 " %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;
}
}
void
-BaseStereoPanner::do_distribute (AudioBuffer& srcbuf, BufferSet& obufs, gain_t gain_coeff, nframes_t nframes)
+BaseStereoPanner::do_distribute (AudioBuffer& srcbuf, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes)
{
assert(obufs.count().n_audio() == 2);
/* 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;
+ pframes_t const limit = min ((pframes_t) 64, nframes);
+ pframes_t n;
delta = -(delta / (float) (limit));
/* 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;
+ pframes_t const limit = min ((pframes_t) 64, nframes);
+ pframes_t n;
delta = -(delta / (float) (limit));
overhead.
*/
- /* x == 0 => hard left
- x == 1 => hard right
+ /* 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;
desired_left = panL * (scale * panL + 1.0f - scale);
desired_right = panR * (scale * panR + 1.0f - scale);
- effective_x = _x;
+ _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,
+ framepos_t start, framepos_t end, pframes_t nframes,
pan_t** buffers)
{
assert (obufs.count().n_audio() == 2);
/* store effective pan position. do this even if we are muted */
if (nframes > 0) {
- effective_x = buffers[0][nframes-1];
+ _effective_angles.azi = BaseStereoPanner::lr_fract_to_azimuth (buffers[0][nframes-1]);
}
if (_muted) {
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) {
+ for (pframes_t n = 0; n < nframes; ++n) {
float const panR = buffers[0][n];
float const panL = 1 - panR;
dst = obufs.get_audio(0).data();
pbuf = buffers[0];
- for (nframes_t n = 0; n < nframes; ++n) {
+ for (pframes_t n = 0; n < nframes; ++n) {
dst[n] += src[n] * pbuf[n];
}
dst = obufs.get_audio(1).data();
pbuf = buffers[1];
- for (nframes_t n = 0; n < nframes; ++n) {
+ for (pframes_t n = 0; n < nframes; ++n) {
dst[n] += src[n] * pbuf[n];
}
}
StreamPanner*
-EqualPowerStereoPanner::factory (Panner& parent, Evoral::Parameter param)
+EqualPowerStereoPanner::factory (Panner& parent, Evoral::Parameter param, Speakers& /* ignored */)
{
return new EqualPowerStereoPanner (parent, param);
}
XMLNode&
EqualPowerStereoPanner::state (bool /*full_state*/)
{
- XMLNode* root = new XMLNode ("StreamPanner");
- char buf[64];
- LocaleGuard lg (X_("POSIX"));
-
- snprintf (buf, sizeof (buf), "%.12g", _x);
- root->add_property (X_("x"), 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;
+ XMLNode& root (StreamPanner::get_state ());
+ root.add_property (X_("type"), EqualPowerStereoPanner::name);
+ return root;
}
int
EqualPowerStereoPanner::set_state (const XMLNode& node, int version)
{
- const XMLProperty* prop;
LocaleGuard lg (X_("POSIX"));
- if ((prop = node.property (X_("x")))) {
- const float pos = atof (prop->value().c_str());
- set_position (pos, true);
- }
-
StreamPanner::set_state (node, version);
for (XMLNodeConstIterator iter = node.children().begin(); iter != node.children().end(); ++iter) {
- if ((*iter)->name() == X_("Controllable")) {
- if ((prop = (*iter)->property("name")) != 0 && prop->value() == "panner") {
- _control->set_state (**iter, version);
- }
-
- } else if ((*iter)->name() == X_("Automation")) {
-
+ if ((*iter)->name() == X_("Automation")) {
+
_control->alist()->set_state (*((*iter)->children().front()), version);
-
+
if (_control->alist()->automation_state() != Off) {
- set_position (_control->list()->eval (parent.session().transport_frame()));
+ double degrees = BaseStereoPanner::lr_fract_to_azimuth (_control->list()->eval (parent.session().transport_frame()));
+ set_position (AngularVector (degrees, 0.0));
}
}
}
return 0;
}
-/*----------------------------------------------------------------------*/
-
-Multi2dPanner::Multi2dPanner (Panner& p, Evoral::Parameter param)
- : StreamPanner (p, param)
-{
- update ();
-}
-
-Multi2dPanner::~Multi2dPanner ()
-{
-}
-
-void
-Multi2dPanner::update ()
-{
- static const float BIAS = FLT_MIN;
- uint32_t i;
- uint32_t const nouts = parent.nouts ();
- float dsq[nouts];
- float f, fr;
- vector<pan_t> pans;
-
- f = 0.0f;
-
- for (i = 0; i < nouts; i++) {
- dsq[i] = ((_x - parent.output(i).x) * (_x - parent.output(i).x) + (_y - parent.output(i).y) * (_y - parent.output(i).y) + BIAS);
- if (dsq[i] < 0.0) {
- dsq[i] = 0.0;
- }
- f += dsq[i] * dsq[i];
- }
-#ifdef __APPLE__
- // terrible hack to support OSX < 10.3.9 builds
- fr = (float) (1.0 / sqrt((double)f));
-#else
- fr = 1.0 / sqrtf(f);
-#endif
- for (i = 0; i < nouts; ++i) {
- parent.output(i).desired_pan = 1.0f - (dsq[i] * fr);
- }
-
- effective_x = _x;
-}
-
-void
-Multi2dPanner::do_distribute (AudioBuffer& srcbuf, BufferSet& obufs, gain_t gain_coeff, nframes_t nframes)
-{
- Sample* dst;
- pan_t pan;
-
- if (_muted) {
- return;
- }
-
- Sample* const src = srcbuf.data();
-
- uint32_t const N = parent.nouts ();
- for (uint32_t n = 0; n < N; ++n) {
- Panner::Output& o = parent.output (n);
-
- dst = obufs.get_audio(n).data();
-
-#ifdef CAN_INTERP
- if (fabsf ((delta = (left_interp - desired_left))) > 0.002) { // about 1 degree of arc
-
- /* interpolate over 64 frames or nframes, whichever is smaller */
-
- nframes_t 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;
- }
-
- pan = left * gain_coeff;
- mix_buffers_with_gain(dst+n,src+n,nframes-n,pan);
-
- } else {
-
-#else
- pan = o.desired_pan;
-
- if ((pan *= gain_coeff) != 1.0f) {
-
- if (pan != 0.0f) {
- mix_buffers_with_gain(dst,src,nframes,pan);
- }
-
- } else {
- mix_buffers_no_gain(dst,src,nframes);
- }
-#endif
-#ifdef CAN_INTERP
- }
-#endif
- }
-
- return;
-}
-
-void
-Multi2dPanner::do_distribute_automated (AudioBuffer& /*src*/, BufferSet& /*obufs*/,
- nframes_t /*start*/, nframes_t /*end*/, nframes_t /*nframes*/,
- pan_t** /*buffers*/)
-{
- if (_muted) {
- return;
- }
-
- /* what ? */
-
- return;
-}
-
-StreamPanner*
-Multi2dPanner::factory (Panner& p, Evoral::Parameter param)
-{
- return new Multi2dPanner (p, param);
-}
-
-int
-Multi2dPanner::load (istream& /*in*/, string /*path*/, uint32_t& /*linecnt*/)
-{
- return 0;
-}
-
-XMLNode&
-Multi2dPanner::get_state (void)
-{
- return state (true);
-}
-
-XMLNode&
-Multi2dPanner::state (bool /*full_state*/)
-{
- XMLNode* root = new XMLNode ("StreamPanner");
- char buf[64];
- LocaleGuard lg (X_("POSIX"));
-
- snprintf (buf, sizeof (buf), "%.12g", _x);
- root->add_property (X_("x"), buf);
- snprintf (buf, sizeof (buf), "%.12g", _y);
- root->add_property (X_("y"), buf);
- root->add_property (X_("type"), Multi2dPanner::name);
-
- /* XXX no meaningful automation yet */
-
- return *root;
-}
-
-int
-Multi2dPanner::set_state (const XMLNode& node, int /*version*/)
-{
- const XMLProperty* prop;
- float newx,newy;
- LocaleGuard lg (X_("POSIX"));
-
- newx = -1;
- newy = -1;
-
- if ((prop = node.property (X_("x")))) {
- newx = atof (prop->value().c_str());
- }
-
- if ((prop = node.property (X_("y")))) {
- newy = atof (prop->value().c_str());
- }
-
- if (_x < 0 || _y < 0) {
- error << _("badly-formed positional data for Multi2dPanner - ignored")
- << endmsg;
- return -1;
- }
-
- set_position (newx, newy);
- return 0;
-}
-
-/*---------------------------------------------------------------------- */
-
Panner::Panner (string name, Session& s)
: SessionObject (s, name)
- , Automatable (s)
+ , Automatable (s)
{
//set_name_old_auto (name);
set_name (name);
}
if (outputs.size() == 2) {
+ AngularVector a;
switch (_streampanners.size()) {
case 1:
- _streampanners.front()->set_position (0.5);
+ 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:
- _streampanners.front()->set_position (0.0);
+ a.azi = 180.0; /* "left", in degrees */
+ _streampanners.front()->set_position (a);
_streampanners.front()->pan_control()->list()->reset_default (0.0);
- _streampanners.back()->set_position (1.0);
+ a.azi = 0.0; /* "right", in degrees */
+ _streampanners.back()->set_position (a);
_streampanners.back()->pan_control()->list()->reset_default (1.0);
return;
default:
vector<StreamPanner*>::iterator p;
for (o = outputs.begin(), p = _streampanners.begin(); o != outputs.end() && p != _streampanners.end(); ++o, ++p) {
- (*p)->set_position ((*o).x, (*o).y);
+ (*p)->set_position ((*o).position);
}
}
void
Panner::reset_streampanner (uint32_t which)
{
+ AngularVector a;
+
if (which >= _streampanners.size() || which >= outputs.size()) {
return;
}
switch (_streampanners.size()) {
case 1:
/* stereo out, 1 stream, default = middle */
- _streampanners.front()->set_position (0.5);
+ 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) {
- _streampanners.front()->set_position (0.0);
+ a.azi = 180.0; /* "left", in degrees */
+ _streampanners.front()->set_position (a);
_streampanners.front()->pan_control()->list()->reset_default (0.0);
} else {
- _streampanners.back()->set_position (1.0);
+ 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].x, outputs[which].y);
+ _streampanners[which]->set_position (outputs[which].position);
}
}
break;
case 2: // line
- outputs.push_back (Output (0, 0));
- outputs.push_back (Output (1.0, 0));
-
+ 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;
- case 3: // triangle
- outputs.push_back (Output (0.5, 0));
- outputs.push_back (Output (0, 1.0));
- outputs.push_back (Output (1.0, 1.0));
-
- for (n = 0; n < npans; ++n) {
- _streampanners.push_back (new Multi2dPanner (*this, Evoral::Parameter(PanAutomation, 0, n)));
- }
-
- break;
-
- case 4: // square
- outputs.push_back (Output (0, 0));
- outputs.push_back (Output (1.0, 0));
- outputs.push_back (Output (1.0, 1.0));
- outputs.push_back (Output (0, 1.0));
-
- for (n = 0; n < npans; ++n) {
- _streampanners.push_back (new Multi2dPanner (*this, Evoral::Parameter(PanAutomation, 0, n)));
- }
-
- break;
-
- case 5: //square+offcenter center
- outputs.push_back (Output (0, 0));
- outputs.push_back (Output (1.0, 0));
- outputs.push_back (Output (1.0, 1.0));
- outputs.push_back (Output (0, 1.0));
- outputs.push_back (Output (0.5, 0.75));
-
- for (n = 0; n < npans; ++n) {
- _streampanners.push_back (new Multi2dPanner (*this, Evoral::Parameter(PanAutomation, 0, n)));
- }
-
- break;
-
default:
- /* XXX horrible placement. FIXME */
- for (n = 0; n < nouts; ++n) {
- outputs.push_back (Output (0.1 * n, 0.1 * n));
- }
-
+ setup_speakers (nouts);
for (n = 0; n < npans; ++n) {
- _streampanners.push_back (new Multi2dPanner (*this, Evoral::Parameter(PanAutomation, 0, n)));
+ _streampanners.push_back (new VBAPanner (*this, Evoral::Parameter(PanAutomation, 0, n), _session.get_speakers()));
}
-
break;
}
(*x)->update ();
}
+ setup_meta_controls ();
+
/* 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 (npans == 2 && outputs.size() == 2) {
/* Do this only if we changed configuration, or our configuration
- appears to be the default set up (center).
+ appears to be the default set up (zero degrees)
*/
- float left;
- float right;
+ AngularVector left;
+ AngularVector right;
- _streampanners.front()->get_position (left);
- _streampanners.back()->get_position (right);
+ left = _streampanners.front()->get_position ();
+ right = _streampanners.back()->get_position ();
- if (changed || ((left == 0.5) && (right == 0.5))) {
+ if (changed || ((left.azi == 0.0) && (right.azi == 0.0))) {
- _streampanners.front()->set_position (0.0);
+ _streampanners.front()->set_position (AngularVector (180.0, 0.0));
_streampanners.front()->pan_control()->list()->reset_default (0.0);
- _streampanners.back()->set_position (1.0);
+ _streampanners.back()->set_position (AngularVector (0.0, 0.0));
_streampanners.back()->pan_control()->list()->reset_default (1.0);
}
+
+ } 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;
+ }
}
}
struct PanPlugins {
string name;
uint32_t nouts;
- StreamPanner* (*factory)(Panner&, Evoral::Parameter);
+ StreamPanner* (*factory)(Panner&, Evoral::Parameter, Speakers&);
};
PanPlugins pan_plugins[] = {
{ EqualPowerStereoPanner::name, 2, EqualPowerStereoPanner::factory },
- { Multi2dPanner::name, 3, Multi2dPanner::factory },
+ { VBAPanner::name, 3, VBAPanner::factory },
{ string (""), 0, 0 }
};
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).x);
- onode->add_property (X_("x"), buf);
- snprintf (buf, sizeof (buf), "%.12g", (*o).y);
- onode->add_property (X_("y"), buf);
- node->add_child_nocopy (*onode);
- }
+ snprintf (buf, sizeof (buf), "%zd", outputs.size());
+ node->add_property (X_("outputs"), buf);
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 ());
+ node->add_child_nocopy (get_automation_xml_state ());
return *node;
}
int
Panner::set_state (const XMLNode& node, int version)
{
- XMLNodeList nlist;
+ XMLNodeList nlist = node.children ();
XMLNodeConstIterator niter;
const XMLProperty *prop;
uint32_t i;
set_linked (string_is_affirmative (prop->value()));
}
-
if ((prop = node.property (X_("bypassed"))) != 0) {
set_bypassed (string_is_affirmative (prop->value()));
}
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")) {
-
- float x, y;
-
- prop = (*niter)->property (X_("x"));
- sscanf (prop->value().c_str(), "%g", &x);
-
- prop = (*niter)->property (X_("y"));
- sscanf (prop->value().c_str(), "%g", &y);
-
- outputs.push_back (Output (x, y));
- }
- }
+ if ((prop = node.property (X_("outputs"))) != 0) {
+ uint32_t n = atoi (prop->value());
+
+ while (n--) {
+ AngularVector a; // value is irrelevant
+ outputs.push_back (Output (a));
+ }
+
+ } else {
+
+ /* old school */
+
+ 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) {
assumption, but it's still an assumption.
*/
- sp = pan_plugins[i].factory (*this, Evoral::Parameter(PanAutomation, 0, num_panners));
+ 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())
}
}
+ setup_meta_controls ();
+
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")))) {
set_automation_xml_state (**niter, Evoral::Parameter (PanAutomation));
}
}
-
+
return 0;
}
}
void
-Panner::set_position (float xpos, StreamPanner& orig)
-{
- float xnow;
- float xdelta ;
- float xnew;
-
- orig.get_position (xnow);
- xdelta = xpos - xnow;
-
- if (_link_direction == SameDirection) {
-
- for (vector<StreamPanner*>::iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
- if (*i == &orig) {
- (*i)->set_position (xpos, true);
- } else {
- (*i)->get_position (xnow);
- xnew = min (1.0f, xnow + xdelta);
- xnew = max (0.0f, xnew);
- (*i)->set_position (xnew, true);
- }
- }
-
- } else {
-
- for (vector<StreamPanner*>::iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
- if (*i == &orig) {
- (*i)->set_position (xpos, true);
- } else {
- (*i)->get_position (xnow);
- xnew = min (1.0f, xnow - xdelta);
- xnew = max (0.0f, xnew);
- (*i)->set_position (xnew, true);
- }
- }
- }
-}
-
-void
-Panner::set_position (float xpos, float ypos, StreamPanner& orig)
-{
- float xnow, ynow;
- float xdelta, ydelta;
- float xnew, ynew;
-
- orig.get_position (xnow, ynow);
- xdelta = xpos - xnow;
- ydelta = ypos - ynow;
-
- if (_link_direction == SameDirection) {
-
- for (vector<StreamPanner*>::iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
- if (*i == &orig) {
- (*i)->set_position (xpos, ypos, true);
- } else {
- (*i)->get_position (xnow, ynow);
-
- xnew = min (1.0f, xnow + xdelta);
- xnew = max (0.0f, xnew);
-
- ynew = min (1.0f, ynow + ydelta);
- ynew = max (0.0f, ynew);
-
- (*i)->set_position (xnew, ynew, true);
- }
- }
-
- } else {
-
- for (vector<StreamPanner*>::iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
- if (*i == &orig) {
- (*i)->set_position (xpos, ypos, true);
- } else {
- (*i)->get_position (xnow, ynow);
-
- xnew = min (1.0f, xnow - xdelta);
- xnew = max (0.0f, xnew);
-
- ynew = min (1.0f, ynow - ydelta);
- ynew = max (0.0f, ynew);
-
- (*i)->set_position (xnew, ynew, true);
- }
- }
- }
-}
-
-void
-Panner::set_position (float xpos, float ypos, float zpos, StreamPanner& orig)
+Panner::set_position (const AngularVector& a, StreamPanner& orig)
{
- float xnow, ynow, znow;
- float xdelta, ydelta, zdelta;
- float xnew, ynew, znew;
+ AngularVector delta;
+ AngularVector new_position;
- orig.get_position (xnow, ynow, znow);
- xdelta = xpos - xnow;
- ydelta = ypos - ynow;
- zdelta = zpos - znow;
+ 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 (xpos, ypos, zpos, true);
+ (*i)->set_position (a, true);
} else {
- (*i)->get_position (xnow, ynow, znow);
-
- xnew = min (1.0f, xnow + xdelta);
- xnew = max (0.0f, xnew);
-
- ynew = min (1.0f, ynow + ydelta);
- ynew = max (0.0f, ynew);
-
- znew = min (1.0f, znow + zdelta);
- znew = max (0.0f, znew);
-
- (*i)->set_position (xnew, ynew, znew, true);
+ new_position = (*i)->get_position() + delta;
+ (*i)->set_position (new_position, true);
}
}
for (vector<StreamPanner*>::iterator i = _streampanners.begin(); i != _streampanners.end(); ++i) {
if (*i == &orig) {
- (*i)->set_position (xpos, ypos, true);
+ (*i)->set_position (a, true);
} else {
- (*i)->get_position (xnow, ynow, znow);
-
- xnew = min (1.0f, xnow - xdelta);
- xnew = max (0.0f, xnew);
-
- ynew = min (1.0f, ynow - ydelta);
- ynew = max (0.0f, ynew);
-
- znew = min (1.0f, znow + zdelta);
- znew = max (0.0f, znew);
-
- (*i)->set_position (xnew, ynew, znew, true);
+ new_position = (*i)->get_position() - delta;
+ (*i)->set_position (new_position, true);
}
}
}
}
void
-Panner::distribute_no_automation (BufferSet& inbufs, BufferSet& outbufs, nframes_t nframes, gain_t gain_coeff)
+Panner::distribute_no_automation (BufferSet& inbufs, BufferSet& outbufs, pframes_t nframes, gain_t gain_coeff)
{
if (outbufs.count().n_audio() == 0) {
// Don't want to lose audio...
}
void
-Panner::run (BufferSet& inbufs, BufferSet& outbufs, framepos_t start_frame, framepos_t end_frame, nframes_t nframes)
+Panner::run (BufferSet& inbufs, BufferSet& outbufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes)
{
if (outbufs.count().n_audio() == 0) {
// Failing to deliver audio we were asked to deliver is a bug
return "";
}
+
+void
+Panner::setup_speakers (uint32_t nouts)
+{
+ 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);
+ }
+}
+
+void
+Panner::set_stereo_width (double val)
+{
+ boost::shared_ptr<AutomationControl> dc = direction_control();
+ if (dc) {
+ dc->set_value (val);
+ }
+}
+
+void
+Panner::set_stereo_position (double val)
+{
+ boost::shared_ptr<AutomationControl> wc = width_control();
+ if (wc) {
+ wc->set_value (val);
+ }
+}
+
+bool
+Panner::set_stereo_pan (double direction_as_lr_fract, double width)
+{
+ AngularVector p (BaseStereoPanner::lr_fract_to_azimuth (direction_as_lr_fract), 0.0);
+ /* width parameter ranges from -1..+1 with 0.0 at center. we want 0..+1 plus knowing
+ whether its "reversed" (i.e. left signal pans right and right signal pans left).
+ full width = 180 degrees
+ */
+ double spread = 2.0 * fabs(width/2.0) * 180.0;
+ double l_pos = p.azi + (spread/2.0); /* more left is "increasing degrees" */
+ double r_pos = p.azi - (spread/2.0); /* more right is "decreasing degrees" */
+ bool move_left = true;
+ bool move_right = true;
+ int l_index = 0;
+ int r_index = 1;
+
+ assert (_streampanners.size() > 1);
+
+ if (width < 0.0) {
+ swap (l_index, r_index);
+ }
+
+ l_pos = max (min (l_pos, 180.0), 0.0);
+ r_pos = max (min (r_pos, 180.0), 0.0);
+
+ /* if the new left position is less than or equal to 180 (hard left) and the left panner
+ is already there, we're not moving the left signal.
+ */
+
+ if (l_pos >= 180.0 &&_streampanners[l_index]->get_position().azi == 180.0) {
+ move_left = false;
+ }
+
+ /* if the new right position is less than or equal to zero (hard right) and the right panner
+ is already there, we're not moving the right signal.
+ */
+
+ if (r_pos <= 0.0 && _streampanners[r_index]->get_position().azi == 0.0) {
+ move_right = false;
+ }
+
+ if (move_left && move_right) {
+ _streampanners[l_index]->set_position (AngularVector (l_pos, 0.0));
+ _streampanners[r_index]->set_position (AngularVector (r_pos, 0.0));
+ }
+
+ return move_left && move_right;
+}
+
+void
+Panner::setup_meta_controls ()
+{
+ if (_streampanners.size() != 2 || outputs.size() != 2) {
+ return;
+ }
+
+ /* 2 signals to 2 outputs: provide "classic" controls for easier manipulation.
+
+ The ID numbers used here don't really matter that much, because Parameters are scoped by owner,
+ but they keep us out of the ordinary range of pan-related parameters.
+ */
+
+ Evoral::Parameter lr_param (PanAutomation, 0, 100);
+ Evoral::Parameter width_param (PanAutomation, 0, 200);
+ boost::shared_ptr<AutomationControl> dc = automation_control (lr_param);
+ boost::shared_ptr<AutomationControl> wc = automation_control (width_param);
+
+ if (dc) {
+ /* reset parent StreamPanner as the current one may have been deleted */
+ boost::shared_ptr<StreamPanner::PanControllable> p = boost::dynamic_pointer_cast<StreamPanner::PanControllable> (dc);
+ assert (p);
+ p->streampanner = _streampanners.front ();
+ } else {
+ dc.reset (new StreamPanner::PanControllable (_session, _("lr"), _streampanners.front(), lr_param));
+ add_control (dc);
+ }
+
+ if (wc) {
+ /* reset parent as above */
+ boost::shared_ptr<StreamPanner::PanControllable> p = boost::dynamic_pointer_cast<StreamPanner::PanControllable> (wc);
+ assert (p);
+ p->streampanner = _streampanners.front ();
+ } else {
+ wc.reset (new StreamPanner::PanControllable (_session, _("width"), _streampanners.front(), width_param));
+ add_control (wc);
+ }
+
+ dc->set_value (0.5);
+ wc->set_value (1.0); // full width
+}
+
+string
+Panner::describe_parameter (Evoral::Parameter param)
+{
+ if (param.type() == PanAutomation) {
+ switch (param.id()) {
+ case 100:
+ return "Pan:position";
+ case 200:
+ return "Pan:width";
+ default:
+ if (_streampanners.size() == 2) {
+ switch (param.id()) {
+ case 0:
+ return "Pan L";
+ default:
+ return "Pan R";
+ }
+ } else {
+ stringstream ss;
+ ss << "Pan " << param.id() + 1;
+ return ss.str ();
+ }
+ }
+ }
+
+ return Automatable::describe_parameter (param);
+}
projects / ardour.git / blobdiff