1416 lines
28 KiB
C++
1416 lines
28 KiB
C++
/*
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Copyright (C) 2004 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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$Id$
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*/
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#include <cmath>
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#include <cerrno>
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#include <fstream>
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#include <cstdlib>
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#include <string>
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#include <cstdio>
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#include <locale.h>
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#include <unistd.h>
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#include <float.h>
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#include <glibmm.h>
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#include <pbd/error.h>
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#include <pbd/failed_constructor.h>
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#include <pbd/xml++.h>
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#include <pbd/enumwriter.h>
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#include <ardour/session.h>
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#include <ardour/panner.h>
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#include <ardour/utils.h>
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#include <ardour/mix.h>
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#include "i18n.h"
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#include <pbd/mathfix.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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float Panner::current_automation_version_number = 1.0;
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string EqualPowerStereoPanner::name = "Equal Power Stereo";
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string Multi2dPanner::name = "Multiple (2D)";
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/* this is a default mapper of control values to a pan position
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others can be imagined.
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*/
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static pan_t direct_control_to_pan (double fract) {
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return fract;
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}
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static double direct_pan_to_control (pan_t val) {
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return val;
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}
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StreamPanner::StreamPanner (Panner& p)
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: parent (p),
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_control (X_("panner"), *this)
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{
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_muted = false;
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parent.session().add_controllable (&_control);
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x = 0.5;
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y = 0.5;
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z = 0.5;
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}
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StreamPanner::~StreamPanner ()
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{
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}
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void
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StreamPanner::PanControllable::set_value (float val)
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{
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panner.set_position (direct_control_to_pan (val));
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}
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float
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StreamPanner::PanControllable::get_value (void) const
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{
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float xpos;
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panner.get_effective_position (xpos);
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return direct_pan_to_control (xpos);
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}
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bool
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StreamPanner::PanControllable::can_send_feedback () const
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{
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AutoState astate = panner.get_parent().automation_state ();
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if ((astate == Play) || (astate == Touch && !panner.get_parent().touching())) {
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return true;
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}
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return false;
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}
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void
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StreamPanner::set_muted (bool yn)
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{
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if (yn != _muted) {
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_muted = yn;
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StateChanged ();
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}
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}
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void
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StreamPanner::set_position (float xpos, bool link_call)
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{
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if (!link_call && parent.linked()) {
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parent.set_position (xpos, *this);
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}
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if (x != xpos) {
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x = xpos;
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update ();
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Changed ();
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_control.Changed ();
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}
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}
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void
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StreamPanner::set_position (float xpos, float ypos, bool link_call)
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{
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if (!link_call && parent.linked()) {
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parent.set_position (xpos, ypos, *this);
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}
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if (x != xpos || y != ypos) {
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x = xpos;
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y = ypos;
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update ();
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Changed ();
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}
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}
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void
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StreamPanner::set_position (float xpos, float ypos, float zpos, bool link_call)
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{
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if (!link_call && parent.linked()) {
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parent.set_position (xpos, ypos, zpos, *this);
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}
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if (x != xpos || y != ypos || z != zpos) {
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x = xpos;
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y = ypos;
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z = zpos;
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update ();
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Changed ();
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}
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}
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int
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StreamPanner::set_state (const XMLNode& node)
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{
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const XMLProperty* prop;
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XMLNodeConstIterator iter;
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if ((prop = node.property (X_("muted")))) {
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set_muted (prop->value() == "yes");
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}
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return 0;
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}
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void
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StreamPanner::add_state (XMLNode& node)
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{
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node.add_property (X_("muted"), (muted() ? "yes" : "no"));
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}
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/*---------------------------------------------------------------------- */
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BaseStereoPanner::BaseStereoPanner (Panner& p)
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: StreamPanner (p), _automation (0.0, 1.0, 0.5)
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{
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}
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BaseStereoPanner::~BaseStereoPanner ()
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{
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}
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void
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BaseStereoPanner::snapshot (nframes_t now)
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{
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if (_automation.automation_state() == Write || _automation.automation_state() == Touch) {
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_automation.rt_add (now, x);
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}
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}
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void
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BaseStereoPanner::transport_stopped (nframes_t frame)
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{
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_automation.reposition_for_rt_add (frame);
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if (_automation.automation_state() != Off) {
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set_position (_automation.eval (frame));
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}
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}
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void
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BaseStereoPanner::set_automation_style (AutoStyle style)
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{
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_automation.set_automation_style (style);
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}
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void
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BaseStereoPanner::set_automation_state (AutoState state)
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{
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if (state != _automation.automation_state()) {
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_automation.set_automation_state (state);
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if (state != Off) {
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set_position (_automation.eval (parent.session().transport_frame()));
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}
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}
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}
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int
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BaseStereoPanner::load (istream& in, string path, uint32_t& linecnt)
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{
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char line[128];
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LocaleGuard lg (X_("POSIX"));
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_automation.clear ();
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while (in.getline (line, sizeof (line), '\n')) {
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jack_nframes_t when;
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double value;
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++linecnt;
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if (strcmp (line, "end") == 0) {
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break;
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}
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if (sscanf (line, "%" PRIu32 " %lf", &when, &value) != 2) {
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warning << string_compose(_("badly formatted pan automation event record at line %1 of %2 (ignored) [%3]"), linecnt, path, line) << endmsg;
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continue;
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}
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_automation.fast_simple_add (when, value);
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}
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/* now that we are done loading */
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_automation.StateChanged ();
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return 0;
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}
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void
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BaseStereoPanner::distribute (Sample* src, Sample** obufs, gain_t gain_coeff, nframes_t nframes)
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{
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pan_t delta;
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Sample* dst;
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pan_t pan;
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if (_muted) {
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return;
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}
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/* LEFT */
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dst = obufs[0];
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if (fabsf ((delta = (left - desired_left))) > 0.002) { // about 1 degree of arc
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/* interpolate over 64 frames or nframes, whichever is smaller */
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nframes_t limit = min ((nframes_t)64, nframes);
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nframes_t n;
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delta = -(delta / (float) (limit));
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for (n = 0; n < limit; n++) {
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left_interp = left_interp + delta;
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left = left_interp + 0.9 * (left - left_interp);
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dst[n] += src[n] * left * gain_coeff;
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}
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pan = left * gain_coeff;
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Session::mix_buffers_with_gain(dst+n,src+n,nframes-n,pan);
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} else {
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left = desired_left;
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left_interp = left;
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if ((pan = (left * gain_coeff)) != 1.0f) {
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if (pan != 0.0f) {
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Session::mix_buffers_with_gain(dst,src,nframes,pan);
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/* mark that we wrote into the buffer */
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// obufs[0] = 0;
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}
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} else {
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Session::mix_buffers_no_gain(dst,src,nframes);
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/* mark that we wrote into the buffer */
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// obufs[0] = 0;
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}
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}
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/* RIGHT */
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dst = obufs[1];
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if (fabsf ((delta = (right - desired_right))) > 0.002) { // about 1 degree of arc
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/* interpolate over 64 frames or nframes, whichever is smaller */
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nframes_t limit = min ((nframes_t)64, nframes);
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nframes_t n;
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delta = -(delta / (float) (limit));
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for (n = 0; n < limit; n++) {
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right_interp = right_interp + delta;
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right = right_interp + 0.9 * (right - right_interp);
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dst[n] += src[n] * right * gain_coeff;
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}
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pan = right * gain_coeff;
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Session::mix_buffers_with_gain(dst+n,src+n,nframes-n,pan);
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/* XXX it would be nice to mark the buffer as written to */
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} else {
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right = desired_right;
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right_interp = right;
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if ((pan = (right * gain_coeff)) != 1.0f) {
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if (pan != 0.0f) {
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Session::mix_buffers_with_gain(dst,src,nframes,pan);
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/* XXX it would be nice to mark the buffer as written to */
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}
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} else {
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Session::mix_buffers_no_gain(dst,src,nframes);
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/* XXX it would be nice to mark the buffer as written to */
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}
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}
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}
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/*---------------------------------------------------------------------- */
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EqualPowerStereoPanner::EqualPowerStereoPanner (Panner& p)
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: BaseStereoPanner (p)
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{
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update ();
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left = desired_left;
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right = desired_right;
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left_interp = left;
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right_interp = right;
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}
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EqualPowerStereoPanner::~EqualPowerStereoPanner ()
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{
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}
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void
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EqualPowerStereoPanner::update ()
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{
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/* it would be very nice to split this out into a virtual function
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that can be accessed from BaseStereoPanner and used in distribute_automated().
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but the place where its used in distribute_automated() is a tight inner loop,
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and making "nframes" virtual function calls to compute values is an absurd
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overhead.
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*/
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/* x == 0 => hard left
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x == 1 => hard right
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*/
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float panR = x;
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float panL = 1 - panR;
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const float pan_law_attenuation = -3.0f;
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const float scale = 2.0f - 4.0f * powf (10.0f,pan_law_attenuation/20.0f);
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desired_left = panL * (scale * panL + 1.0f - scale);
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desired_right = panR * (scale * panR + 1.0f - scale);
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effective_x = x;
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}
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void
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EqualPowerStereoPanner::distribute_automated (Sample* src, Sample** obufs,
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nframes_t start, nframes_t end, nframes_t nframes,
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pan_t** buffers)
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{
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Sample* dst;
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pan_t* pbuf;
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/* fetch positional data */
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if (!_automation.rt_safe_get_vector (start, end, buffers[0], nframes)) {
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/* fallback */
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if (!_muted) {
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distribute (src, obufs, 1.0, nframes);
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}
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return;
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}
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/* store effective pan position. do this even if we are muted */
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if (nframes > 0)
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effective_x = buffers[0][nframes-1];
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if (_muted) {
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return;
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}
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/* apply pan law to convert positional data into pan coefficients for
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each buffer (output)
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*/
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const float pan_law_attenuation = -3.0f;
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const float scale = 2.0f - 4.0f * powf (10.0f,pan_law_attenuation/20.0f);
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for (nframes_t n = 0; n < nframes; ++n) {
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float panR = buffers[0][n];
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float panL = 1 - panR;
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buffers[0][n] = panL * (scale * panL + 1.0f - scale);
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buffers[1][n] = panR * (scale * panR + 1.0f - scale);
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}
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/* LEFT */
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dst = obufs[0];
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pbuf = buffers[0];
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for (nframes_t n = 0; n < nframes; ++n) {
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dst[n] += src[n] * pbuf[n];
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}
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/* XXX it would be nice to mark the buffer as written to */
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/* RIGHT */
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dst = obufs[1];
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pbuf = buffers[1];
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for (nframes_t n = 0; n < nframes; ++n) {
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dst[n] += src[n] * pbuf[n];
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}
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/* XXX it would be nice to mark the buffer as written to */
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}
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StreamPanner*
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EqualPowerStereoPanner::factory (Panner& parent)
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{
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return new EqualPowerStereoPanner (parent);
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}
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XMLNode&
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EqualPowerStereoPanner::get_state (void)
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{
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return state (true);
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}
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XMLNode&
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EqualPowerStereoPanner::state (bool full_state)
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{
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XMLNode* root = new XMLNode ("StreamPanner");
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char buf[64];
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LocaleGuard lg (X_("POSIX"));
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snprintf (buf, sizeof (buf), "%.12g", x);
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root->add_property (X_("x"), buf);
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root->add_property (X_("type"), EqualPowerStereoPanner::name);
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XMLNode* autonode = new XMLNode (X_("Automation"));
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autonode->add_child_nocopy (_automation.state (full_state));
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root->add_child_nocopy (*autonode);
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StreamPanner::add_state (*root);
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root->add_child_nocopy (_control.get_state ());
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return *root;
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}
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int
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EqualPowerStereoPanner::set_state (const XMLNode& node)
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{
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const XMLProperty* prop;
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float pos;
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LocaleGuard lg (X_("POSIX"));
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if ((prop = node.property (X_("x")))) {
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pos = atof (prop->value().c_str());
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set_position (pos, true);
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}
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StreamPanner::set_state (node);
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for (XMLNodeConstIterator iter = node.children().begin(); iter != node.children().end(); ++iter) {
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if ((*iter)->name() == X_("controllable")) {
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if ((prop = (*iter)->property("name")) != 0 && prop->value() == "panner") {
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_control.set_state (**iter);
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}
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} else if ((*iter)->name() == X_("Automation")) {
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_automation.set_state (*((*iter)->children().front()));
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if (_automation.automation_state() != Off) {
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set_position (_automation.eval (parent.session().transport_frame()));
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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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/*----------------------------------------------------------------------*/
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Multi2dPanner::Multi2dPanner (Panner& p)
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: StreamPanner (p), _automation (0.0, 1.0, 0.5) // XXX useless
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{
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update ();
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}
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Multi2dPanner::~Multi2dPanner ()
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{
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}
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void
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Multi2dPanner::snapshot (nframes_t now)
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{
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// how?
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}
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void
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Multi2dPanner::transport_stopped (nframes_t frame)
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{
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//what?
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}
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void
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Multi2dPanner::set_automation_style (AutoStyle style)
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{
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//what?
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}
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void
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Multi2dPanner::set_automation_state (AutoState state)
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{
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// what?
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}
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void
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Multi2dPanner::update ()
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{
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static const float BIAS = FLT_MIN;
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uint32_t i;
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uint32_t nouts = parent.outputs.size();
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float dsq[nouts];
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float f, fr;
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vector<pan_t> pans;
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f = 0.0f;
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|
|
for (i = 0; i < nouts; i++) {
|
|
dsq[i] = ((x - parent.outputs[i].x) * (x - parent.outputs[i].x) + (y - parent.outputs[i].y) * (y - parent.outputs[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.outputs[i].desired_pan = 1.0f - (dsq[i] * fr);
|
|
}
|
|
|
|
effective_x = x;
|
|
}
|
|
|
|
void
|
|
Multi2dPanner::distribute (Sample* src, Sample** obufs, gain_t gain_coeff, nframes_t nframes)
|
|
{
|
|
Sample* dst;
|
|
pan_t pan;
|
|
vector<Panner::Output>::iterator o;
|
|
uint32_t n;
|
|
|
|
if (_muted) {
|
|
return;
|
|
}
|
|
|
|
|
|
for (n = 0, o = parent.outputs.begin(); o != parent.outputs.end(); ++o, ++n) {
|
|
|
|
dst = obufs[n];
|
|
|
|
#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;
|
|
|
|
for (; n < nframes; ++n) {
|
|
dst[n] += src[n] * pan;
|
|
}
|
|
|
|
} else {
|
|
|
|
#else
|
|
pan = (*o).desired_pan;
|
|
|
|
if ((pan *= gain_coeff) != 1.0f) {
|
|
|
|
if (pan != 0.0f) {
|
|
|
|
for (nframes_t n = 0; n < nframes; ++n) {
|
|
dst[n] += src[n] * pan;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
} else {
|
|
|
|
for (nframes_t n = 0; n < nframes; ++n) {
|
|
dst[n] += src[n];
|
|
}
|
|
|
|
}
|
|
#endif
|
|
#ifdef CAN_INTERP
|
|
}
|
|
#endif
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
void
|
|
Multi2dPanner::distribute_automated (Sample* src, Sample** obufs,
|
|
nframes_t start, nframes_t end, nframes_t nframes,
|
|
pan_t** buffers)
|
|
{
|
|
if (_muted) {
|
|
return;
|
|
}
|
|
|
|
/* what ? */
|
|
|
|
return;
|
|
}
|
|
|
|
StreamPanner*
|
|
Multi2dPanner::factory (Panner& p)
|
|
{
|
|
return new Multi2dPanner (p);
|
|
}
|
|
|
|
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)
|
|
{
|
|
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)
|
|
: _session (s)
|
|
{
|
|
set_name (name);
|
|
|
|
_linked = false;
|
|
_link_direction = SameDirection;
|
|
_bypassed = false;
|
|
}
|
|
|
|
Panner::~Panner ()
|
|
{
|
|
}
|
|
|
|
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 (uint32_t nouts, uint32_t npans)
|
|
{
|
|
uint32_t n;
|
|
bool changed = false;
|
|
|
|
if (nouts < 2 || (nouts == outputs.size() && npans == size())) {
|
|
return;
|
|
}
|
|
|
|
n = size();
|
|
clear ();
|
|
|
|
if (n != npans) {
|
|
changed = true;
|
|
}
|
|
|
|
n = outputs.size();
|
|
outputs.clear ();
|
|
|
|
if (n != nouts) {
|
|
changed = true;
|
|
}
|
|
|
|
switch (nouts) {
|
|
case 0:
|
|
break;
|
|
|
|
case 1:
|
|
fatal << _("programming error:")
|
|
<< X_("Panner::reset() called with a single output")
|
|
<< endmsg;
|
|
/*NOTREACHED*/
|
|
break;
|
|
|
|
case 2:
|
|
/* line */
|
|
outputs.push_back (Output (0, 0));
|
|
outputs.push_back (Output (1.0, 0));
|
|
|
|
for (n = 0; n < npans; ++n) {
|
|
push_back (new EqualPowerStereoPanner (*this));
|
|
}
|
|
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) {
|
|
push_back (new Multi2dPanner (*this));
|
|
}
|
|
|
|
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) {
|
|
push_back (new Multi2dPanner (*this));
|
|
}
|
|
|
|
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) {
|
|
push_back (new Multi2dPanner (*this));
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
/* XXX horrible placement. FIXME */
|
|
for (n = 0; n < nouts; ++n) {
|
|
outputs.push_back (Output (0.1 * n, 0.1 * n));
|
|
}
|
|
|
|
for (n = 0; n < npans; ++n) {
|
|
push_back (new Multi2dPanner (*this));
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
for (iterator x = begin(); x != end(); ++x) {
|
|
(*x)->update ();
|
|
}
|
|
|
|
/* 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 (center).
|
|
*/
|
|
|
|
float left;
|
|
float right;
|
|
|
|
front()->get_position (left);
|
|
back()->get_position (right);
|
|
|
|
if (changed || ((left == 0.5) && (right == 0.5))) {
|
|
|
|
front()->set_position (0.0);
|
|
front()->automation().reset_default (0.0);
|
|
|
|
back()->set_position (1.0);
|
|
back()->automation().reset_default (1.0);
|
|
|
|
changed = true;
|
|
}
|
|
}
|
|
|
|
if (changed) {
|
|
Changed (); /* EMIT SIGNAL */
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
void
|
|
Panner::remove (uint32_t which)
|
|
{
|
|
vector<StreamPanner*>::iterator i;
|
|
for (i = begin(); i != end() && which; ++i, --which);
|
|
|
|
if (i != end()) {
|
|
delete *i;
|
|
erase (i);
|
|
}
|
|
}
|
|
|
|
void
|
|
Panner::clear ()
|
|
{
|
|
for (vector<StreamPanner*>::iterator i = begin(); i != end(); ++i) {
|
|
delete *i;
|
|
}
|
|
|
|
vector<StreamPanner*>::clear ();
|
|
}
|
|
|
|
void
|
|
Panner::set_automation_style (AutoStyle style)
|
|
{
|
|
for (vector<StreamPanner*>::iterator i = begin(); i != end(); ++i) {
|
|
(*i)->set_automation_style (style);
|
|
}
|
|
_session.set_dirty ();
|
|
}
|
|
|
|
void
|
|
Panner::set_automation_state (AutoState state)
|
|
{
|
|
for (vector<StreamPanner*>::iterator i = begin(); i != end(); ++i) {
|
|
(*i)->set_automation_state (state);
|
|
}
|
|
_session.set_dirty ();
|
|
}
|
|
|
|
AutoState
|
|
Panner::automation_state () const
|
|
{
|
|
if (!empty()) {
|
|
return front()->automation().automation_state ();
|
|
} else {
|
|
return Off;
|
|
}
|
|
}
|
|
|
|
AutoStyle
|
|
Panner::automation_style () const
|
|
{
|
|
if (!empty()) {
|
|
return front()->automation().automation_style ();
|
|
} else {
|
|
return Absolute;
|
|
}
|
|
}
|
|
|
|
void
|
|
Panner::transport_stopped (nframes_t frame)
|
|
{
|
|
for (vector<StreamPanner*>::iterator i = begin(); i != end(); ++i) {
|
|
(*i)->transport_stopped (frame);
|
|
}
|
|
}
|
|
|
|
void
|
|
Panner::snapshot (nframes_t now)
|
|
{
|
|
for (vector<StreamPanner*>::iterator i = begin(); i != end(); ++i) {
|
|
(*i)->snapshot (now);
|
|
}
|
|
}
|
|
|
|
void
|
|
Panner::clear_automation ()
|
|
{
|
|
for (vector<StreamPanner*>::iterator i = begin(); i != end(); ++i) {
|
|
(*i)->automation().clear ();
|
|
}
|
|
_session.set_dirty ();
|
|
}
|
|
|
|
struct PanPlugins {
|
|
string name;
|
|
uint32_t nouts;
|
|
StreamPanner* (*factory)(Panner&);
|
|
};
|
|
|
|
PanPlugins pan_plugins[] = {
|
|
{ EqualPowerStereoPanner::name, 2, EqualPowerStereoPanner::factory },
|
|
{ Multi2dPanner::name, 3, Multi2dPanner::factory },
|
|
{ string (""), 0, 0 }
|
|
};
|
|
|
|
XMLNode&
|
|
Panner::get_state (void)
|
|
{
|
|
return state (true);
|
|
}
|
|
|
|
XMLNode&
|
|
Panner::state (bool full)
|
|
{
|
|
XMLNode* root = new XMLNode (X_("Panner"));
|
|
char buf[32];
|
|
|
|
root->add_property (X_("linked"), (_linked ? "yes" : "no"));
|
|
root->add_property (X_("link_direction"), enum_2_string (_link_direction));
|
|
root->add_property (X_("bypassed"), (bypassed() ? "yes" : "no"));
|
|
|
|
/* add each output */
|
|
|
|
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);
|
|
root->add_child_nocopy (*onode);
|
|
}
|
|
|
|
for (vector<StreamPanner*>::const_iterator i = begin(); i != end(); ++i) {
|
|
root->add_child_nocopy ((*i)->state (full));
|
|
}
|
|
|
|
return *root;
|
|
}
|
|
|
|
int
|
|
Panner::set_state (const XMLNode& node)
|
|
{
|
|
XMLNodeList nlist;
|
|
XMLNodeConstIterator niter;
|
|
const XMLProperty *prop;
|
|
uint32_t i;
|
|
StreamPanner* sp;
|
|
LocaleGuard lg (X_("POSIX"));
|
|
|
|
clear ();
|
|
outputs.clear ();
|
|
|
|
if ((prop = node.property (X_("linked"))) != 0) {
|
|
set_linked (prop->value() == "yes");
|
|
}
|
|
|
|
|
|
if ((prop = node.property (X_("bypassed"))) != 0) {
|
|
set_bypassed (prop->value() == "yes");
|
|
}
|
|
|
|
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")) {
|
|
|
|
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));
|
|
}
|
|
}
|
|
|
|
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 its still an assumption.
|
|
*/
|
|
|
|
sp = pan_plugins[i].factory (*this);
|
|
|
|
if (sp->set_state (**niter) == 0) {
|
|
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;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
/* 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 = _session.automation_dir();
|
|
automation_path += prop->value ();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
bool
|
|
Panner::touching () const
|
|
{
|
|
for (vector<StreamPanner*>::const_iterator i = begin(); i != end(); ++i) {
|
|
if ((*i)->automation().touching ()) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
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 = begin(); i != 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 = begin(); i != 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 = begin(); i != 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 = begin(); i != 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)
|
|
{
|
|
float xnow, ynow, znow;
|
|
float xdelta, ydelta, zdelta;
|
|
float xnew, ynew, znew;
|
|
|
|
orig.get_position (xnow, ynow, znow);
|
|
xdelta = xpos - xnow;
|
|
ydelta = ypos - ynow;
|
|
zdelta = zpos - znow;
|
|
|
|
if (_link_direction == SameDirection) {
|
|
|
|
for (vector<StreamPanner*>::iterator i = begin(); i != end(); ++i) {
|
|
if (*i == &orig) {
|
|
(*i)->set_position (xpos, ypos, zpos, 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);
|
|
}
|
|
}
|
|
|
|
} else {
|
|
|
|
for (vector<StreamPanner*>::iterator i = begin(); i != end(); ++i) {
|
|
if (*i == &orig) {
|
|
(*i)->set_position (xpos, ypos, 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);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* old school automation handling */
|
|
|
|
void
|
|
Panner::set_name (string str)
|
|
{
|
|
automation_path = _session.automation_dir();
|
|
automation_path += _session.snap_name();
|
|
automation_path += "-pan-";
|
|
automation_path += legalize_for_path (str);
|
|
automation_path += ".automation";
|
|
}
|
|
|
|
int
|
|
Panner::load ()
|
|
{
|
|
char line[128];
|
|
uint32_t linecnt = 0;
|
|
float version;
|
|
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 = 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 == 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;
|
|
}
|