#include "pbd/convert.h"
#include "pbd/strsplit.h"
+#include "evoral/Curve.hpp"
+
#include "ardour/dB.h"
#include "ardour/gain_control.h"
#include "ardour/session.h"
#include "ardour/vca.h"
#include "ardour/vca_manager.h"
-#include "i18n.h"
+#include "pbd/i18n.h"
using namespace ARDOUR;
using namespace std;
GainControl::GainControl (Session& session, const Evoral::Parameter ¶m, boost::shared_ptr<AutomationList> al)
: SlavableAutomationControl (session, param, ParameterDescriptor(param),
al ? al : boost::shared_ptr<AutomationList> (new AutomationList (param)),
- param.type() == GainAutomation ? X_("gaincontrol") : X_("trimcontrol")) {
-
- alist()->reset_default (1.0);
-
- lower_db = accurate_coefficient_to_dB (_desc.lower);
- range_db = accurate_coefficient_to_dB (_desc.upper) - lower_db;
-}
-
-double
-GainControl::internal_to_interface (double v) const
-{
- if (_desc.type == GainAutomation) {
- return gain_to_slider_position (v);
- } else {
- return (accurate_coefficient_to_dB (v) - lower_db) / range_db;
- }
-}
-
-double
-GainControl::interface_to_internal (double v) const
-{
- if (_desc.type == GainAutomation) {
- return slider_position_to_gain (v);
- } else {
- return dB_to_coefficient (lower_db + v * range_db);
- }
-}
-
-double
-GainControl::internal_to_user (double v) const
-{
- return accurate_coefficient_to_dB (v);
-}
-
-double
-GainControl::user_to_internal (double u) const
-{
- return dB_to_coefficient (u);
-}
-
-std::string
-GainControl::get_user_string () const
+ param.type() == GainAutomation ? X_("gaincontrol") : X_("trimcontrol"),
+ Controllable::GainLike)
{
- char theBuf[32]; sprintf( theBuf, _("%3.1f dB"), accurate_coefficient_to_dB (get_value()));
- return std::string(theBuf);
}
void
* ControlGroup::set_group_values().
*/
- const float desired_gain = user_double();
+ const float desired_gain = get_value ();
if (fabsf (desired_gain) < GAIN_COEFF_SMALL) {
// really?! what's the idea here?
}
void
-GainControl::recompute_masters_ratios (double val)
-{
- /* Master WRITE lock must be held */
-
- /* V' is the new gain value for this
-
- Mv(n) is the return value of ::get_value() for the n-th master
- Mr(n) is the return value of ::ratio() for the n-th master record
-
- the slave should return V' on the next call to ::get_value().
-
- but the value is determined by the masters, so we know:
-
- V' = (Mv(1) * Mr(1)) * (Mv(2) * Mr(2)) * ... * (Mv(n) * Mr(n))
-
- hence:
-
- Mr(1) * Mr(2) * ... * (Mr(n) = V' / (Mv(1) * Mv(2) * ... * Mv(n))
-
- if we make all ratios equal (i.e. each master contributes the same
- fraction of its own gain level to make the final slave gain), then we
- have:
-
- pow (Mr(n), n) = V' / (Mv(1) * Mv(2) * ... * Mv(n))
-
- which gives
-
- Mr(n) = pow ((V' / (Mv(1) * Mv(2) * ... * Mv(n))), 1/n)
-
- Mr(n) is the new ratio number for the slaves
- */
-
-
- const double nmasters = _masters.size();
- double masters_total_gain_coefficient = 1.0;
-
- for (Masters::iterator mr = _masters.begin(); mr != _masters.end(); ++mr) {
- masters_total_gain_coefficient *= mr->second.master()->get_value();
- }
-
- const double new_universal_ratio = pow ((val / masters_total_gain_coefficient), (1.0/nmasters));
-
- for (Masters::iterator mr = _masters.begin(); mr != _masters.end(); ++mr) {
- mr->second.reset_ratio (new_universal_ratio);
- }
-}
-
-XMLNode&
-GainControl::get_state ()
-{
- XMLNode& node (AutomationControl::get_state());
-
-#if 0
- /* store VCA master IDs */
-
- string str;
-
- {
- Glib::Threads::RWLock::ReaderLock lm (master_lock);
- for (Masters::const_iterator mr = _masters.begin(); mr != _masters.end(); ++mr) {
- if (!str.empty()) {
- str += ',';
- }
- str += PBD::to_string (mr->first, std::dec);
- }
- }
-
- if (!str.empty()) {
- node.add_property (X_("masters"), str);
- }
-#endif
-
- return node;
-}
-
-int
-GainControl::set_state (XMLNode const& node, int version)
+GainControl::post_add_master (boost::shared_ptr<AutomationControl> m)
{
- AutomationControl::set_state (node, version);
-
-#if 0
- XMLProperty const* prop = node.property (X_("masters"));
-
- /* Problem here if we allow VCA's to be slaved to other VCA's .. we
- * have to load all VCAs first, then set up slave/master relationships
- * once we have them all.
- */
-
- if (prop) {
- masters_string = prop->value ();
-
- if (_session.vca_manager().vcas_loaded()) {
- vcas_loaded ();
- } else {
- _session.vca_manager().VCAsLoaded.connect_same_thread (vca_loaded_connection, boost::bind (&GainControl::vcas_loaded, this));
- }
+ if (m->get_value() == 0) {
+ /* master is at -inf, which forces this ctrl to -inf on assignment */
+ Changed (false, Controllable::NoGroup); /* EMIT SIGNAL */
}
-#endif
-
- return 0;
}
-void
-GainControl::vcas_loaded ()
+bool
+GainControl::get_masters_curve_locked (samplepos_t start, samplepos_t end, float* vec, samplecnt_t veclen) const
{
- if (masters_string.empty()) {
- return;
+ if (_masters.empty()) {
+ return list()->curve().rt_safe_get_vector (start, end, vec, veclen);
}
-
- vector<string> masters;
- split (masters_string, masters, ',');
-
- for (vector<string>::const_iterator m = masters.begin(); m != masters.end(); ++m) {
- boost::shared_ptr<VCA> vca = _session.vca_manager().vca_by_number (PBD::atoi (*m));
- if (vca) {
- add_master (vca->gain_control());
- }
+ for (samplecnt_t i = 0; i < veclen; ++i) {
+ vec[i] = 1.f;
}
-
- vca_loaded_connection.disconnect ();
- masters_string.clear ();
+ return SlavableAutomationControl::masters_curve_multiply (start, end, vec, veclen);
}
-
projects / ardour.git / blobdiff