X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fgain_control.cc;h=35f666bdf10c23222ed24e905b9d6e1491e8dee7;hb=567c0a8f5321f70f13e8e0c4c78725ce4521608b;hp=867edaf5a39d5ef3e666d61565d1505304bba610;hpb=9e5b7db89f381c70232fab35dc21fd885863f998;p=ardour.git

diff --git a/libs/ardour/gain_control.cc b/libs/ardour/gain_control.cc
index 867edaf5a3..35f666bdf1 100644
--- a/libs/ardour/gain_control.cc
+++ b/libs/ardour/gain_control.cc
@@ -16,53 +16,41 @@
     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")) {
-
+	: SlavableAutomationControl (session, param, ParameterDescriptor(param),
+	                             al ? al : boost::shared_ptr<AutomationList> (new AutomationList (param)),
+	                             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;
 }
 
-void
-GainControl::set_value (double val, PBD::Controllable::GroupControlDisposition group_override)
-{
-	if (writable()) {
-		_set_value (val, group_override);
-	}
-}
-
-void
-GainControl::set_value_unchecked (double val)
-{
-	/* used only automation playback */
-	_set_value (val, Controllable::NoGroup);
-}
-
-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 ();
-}
-
 double
 GainControl::internal_to_interface (double v) const
 {
 	if (_desc.type == GainAutomation) {
-		return gain_to_slider_position (v);
+		return gain_to_slider_position_with_max (v, _desc.upper);
 	} else {
 		return (accurate_coefficient_to_dB (v) - lower_db) / range_db;
 	}
@@ -72,7 +60,7 @@ double
 GainControl::interface_to_internal (double v) const
 {
 	if (_desc.type == GainAutomation) {
-		return slider_position_to_gain (v);
+		return slider_position_to_gain_with_max (v, _desc.upper);
 	} else {
 		return dB_to_coefficient (lower_db + v * range_db);
 	}
@@ -97,3 +85,40 @@ GainControl::get_user_string () const
 	return std::string(theBuf);
 }
 
+void
+GainControl::inc_gain (gain_t factor)
+{
+	/* To be used ONLY when doing group-relative gain adjustment, from
+	 * ControlGroup::set_group_values().
+	 */
+
+	const float desired_gain = get_value ();
+
+	if (fabsf (desired_gain) < GAIN_COEFF_SMALL) {
+		// really?! what's the idea here?
+		actually_set_value (0.000001f + (0.000001f * factor), Controllable::ForGroup);
+	} else {
+		actually_set_value (desired_gain + (desired_gain * factor), Controllable::ForGroup);
+	}
+}
+
+void
+GainControl::post_add_master (boost::shared_ptr<AutomationControl> m)
+{
+	if (m->get_value() == 0) {
+		/* master is at -inf, which forces this ctrl to -inf on assignment */
+		Changed (false, Controllable::NoGroup); /* EMIT SIGNAL */
+	}
+}
+
+bool
+GainControl::get_masters_curve_locked (framepos_t start, framepos_t end, float* vec, framecnt_t veclen) const
+{
+	if (_masters.empty()) {
+		return list()->curve().rt_safe_get_vector (start, end, vec, veclen);
+	}
+	for (framecnt_t i = 0; i < veclen; ++i) {
+		vec[i] = 1.f;
+	}
+	return SlavableAutomationControl::masters_curve_multiply (start, end, vec, veclen);
+}