X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fgain_control.cc;h=1813586e0935a49cf8e2aa177f9311f3a7a853df;hb=5fa05b403ca21a6573d07b921dc14f0769dc9fc7;hp=5af0e2d397cf13d0d86d81dd17f82bbb23e7a7cb;hpb=87481a2ee17023686991e1a87182c2e8ed335690;p=ardour.git

diff --git a/libs/ardour/gain_control.cc b/libs/ardour/gain_control.cc
index 5af0e2d397..1813586e09 100644
--- a/libs/ardour/gain_control.cc
+++ b/libs/ardour/gain_control.cc
@@ -16,119 +16,66 @@
     675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
+#include <cmath>
+
+#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 &param, boost::shared_ptr<AutomationList> al)
-	: AutomationControl (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::get_value() const
-{
-	if (!_master) {
-		return AutomationControl::get_value();
-	}
-	return AutomationControl::get_value() * _master->get_value();
-}
-
-void
-GainControl::set_value (double val, PBD::Controllable::GroupControlDisposition group_override)
+	: SlavableAutomationControl (session, param, ParameterDescriptor(param),
+	                             al ? al : boost::shared_ptr<AutomationList> (new AutomationList (param)),
+	                             param.type() == GainAutomation ? X_("gaincontrol") : X_("trimcontrol"),
+	                             Controllable::GainLike)
 {
-	if (writable()) {
-		_set_value (val, group_override);
-	}
 }
 
 void
-GainControl::set_value_unchecked (double val)
+GainControl::inc_gain (gain_t factor)
 {
-	/* used only automation playback */
-	_set_value (val, Controllable::NoGroup);
-}
+	/* To be used ONLY when doing group-relative gain adjustment, from
+	 * ControlGroup::set_group_values().
+	 */
 
-void
-GainControl::_set_value (double val, Controllable::GroupControlDisposition group_override)
-{
-	AutomationControl::set_value (std::max (std::min (val, (double)_desc.upper), (double)_desc.lower), group_override);
-	_session.set_dirty ();
-}
+	const float desired_gain = get_value ();
 
-double
-GainControl::internal_to_interface (double v) const
-{
-	if (_desc.type == GainAutomation) {
-		return gain_to_slider_position (v);
+	if (fabsf (desired_gain) < GAIN_COEFF_SMALL) {
+		// really?! what's the idea here?
+		actually_set_value (0.000001f + (0.000001f * factor), Controllable::ForGroup);
 	} else {
-		return (accurate_coefficient_to_dB (v) - lower_db) / range_db;
+		actually_set_value (desired_gain + (desired_gain * factor), Controllable::ForGroup);
 	}
 }
 
-double
-GainControl::interface_to_internal (double v) const
+void
+GainControl::post_add_master (boost::shared_ptr<AutomationControl> m)
 {
-	if (_desc.type == GainAutomation) {
-		return slider_position_to_gain (v);
-	} else {
-		return dB_to_coefficient (lower_db + v * range_db);
+	if (m->get_value() == 0) {
+		/* master is at -inf, which forces this ctrl to -inf on assignment */
+		Changed (false, Controllable::NoGroup); /* EMIT SIGNAL */
 	}
 }
 
-double
-GainControl::internal_to_user (double v) const
+bool
+GainControl::get_masters_curve_locked (samplepos_t start, samplepos_t end, float* vec, samplecnt_t veclen) 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
-GainControl::set_master (boost::shared_ptr<GainControl> m)
-{
-	double old_master_val;
-
-	if (_master) {
-		old_master_val = _master->get_value();
-	} else {
-		old_master_val = 1.0;
+	if (_masters.empty()) {
+		return list()->curve().rt_safe_get_vector (start, end, vec, veclen);
 	}
-
-	_master = m;
-
-	double new_master_val;
-
-	if (_master) {
-		new_master_val = _master->get_value();
-	} else {
-		new_master_val = 1.0;
-	}
-
-	if (old_master_val != new_master_val) {
-		Changed(); /* EMIT SIGNAL */
+	for (samplecnt_t i = 0; i < veclen; ++i) {
+		vec[i] = 1.f;
 	}
+	return SlavableAutomationControl::masters_curve_multiply (start, end, vec, veclen);
 }
-