Prepare export-format codec-quality setting

[ardour.git] / libs / ardour / gain_control.cc

diff --git a/libs/ardour/gain_control.cc b/libs/ardour/gain_control.cc
index d100273640087e372f75dde70bf7b39bfba3c79e..1813586e0935a49cf8e2aa177f9311f3a7a853df 100644 (file)
--- a/libs/ardour/gain_control.cc
+++ b/libs/ardour/gain_control.cc
@@ -21,6 +21,8 @@
 #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"
@@ -38,49 +40,6 @@ GainControl::GainControl (Session& session, const Evoral::Parameter &param, boos
                                     param.type() == GainAutomation ? X_("gaincontrol") : X_("trimcontrol"),
                                     Controllable::GainLike)
 {
-       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
-{
-       char theBuf[32]; sprintf( theBuf, _("%3.1f dB"), accurate_coefficient_to_dB (get_value()));
-       return std::string(theBuf);
 }
 
 void
@@ -90,7 +49,7 @@ GainControl::inc_gain (gain_t factor)
         * 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?
@@ -101,84 +60,22 @@ GainControl::inc_gain (gain_t factor)
 }
 
 void
-GainControl::recompute_masters_ratios (double val)
+GainControl::post_add_master (boost::shared_ptr<AutomationControl> m)
 {
-       /* 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);
+       if (m->get_value() == 0) {
+               /* master is at -inf, which forces this ctrl to -inf on assignment */
+               Changed (false, Controllable::NoGroup); /* EMIT SIGNAL */
        }
 }
 
-XMLNode&
-GainControl::get_state ()
+bool
+GainControl::get_masters_curve_locked (samplepos_t start, samplepos_t end, float* vec, samplecnt_t veclen) const
 {
-       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 (_masters.empty()) {
+               return list()->curve().rt_safe_get_vector (start, end, vec, veclen);
        }
-
-       if (!str.empty()) {
-               node.add_property (X_("masters"), str);
+       for (samplecnt_t i = 0; i < veclen; ++i) {
+               vec[i] = 1.f;
        }
-#endif
-
-       return node;
-}
-
-int
-GainControl::set_state (XMLNode const& node, int version)
-{
-       return AutomationControl::set_state (node, version);
+       return SlavableAutomationControl::masters_curve_multiply (start, end, vec, veclen);
 }
-