, _apply_gain_automation(false)
, _current_gain(1.0)
{
- boost::shared_ptr<AutomationList> gl(new AutomationList(Evoral::Parameter(GainAutomation)));
- _gain_control = boost::shared_ptr<GainControl>( new GainControl(X_("gaincontrol"), s, this, Evoral::Parameter(GainAutomation), gl ));
+ Evoral::Parameter p (GainAutomation);
+ /* gain range of -inf to +6dB, default 0dB */
+ p.set_range (0, 1.99526231f, 1, false);
+ boost::shared_ptr<AutomationList> gl (new AutomationList (p));
+ _gain_control = boost::shared_ptr<GainControl> (new GainControl (X_("gaincontrol"), s, this, p, gl));
add_control(_gain_control);
}
sp[nx] *= gab[nx];
}
}
-
+
_current_gain = gab[nframes-1];
} else { /* manual (scalar) gain */
if (declick != nframes) {
if (target == 0.0) {
- memset (&buffer[declick], 0, sizeof (Sample) * (nframes - declick));
+ memset (&buffer[declick], 0, sizeof (Sample) * (nframes - declick));
} else if (target != 1.0) {
apply_gain_to_buffer (&buffer[declick], nframes - declick, target);
}
Sample* const buffer = buf.data();
-
+
fractional_pos = 1.0;
-
+
for (pframes_t nx = 0; nx < declick; ++nx) {
buffer[nx] *= (initial + (delta * (0.5 + 0.5 * cos (M_PI * fractional_pos))));
fractional_pos += fractional_shift;
}
-
+
/* now ensure the rest of the buffer has the target value applied, if necessary. */
-
+
if (declick != nframes) {
-
+
if (target == 0.0) {
memset (&buffer[declick], 0, sizeof (Sample) * (nframes - declick));
} else if (target != 1.0) {
val = 1.99526231f;
}
- //cerr << "set desired gain to " << val << " when curgain = " << _gain_control->get_value () << endl;
-
if (src != _gain_control.get()) {
_gain_control->set_value (val);
// bit twisty, this will come back and call us again
if ((gain_node = node.child (Controllable::xml_node_name.c_str())) != 0) {
_gain_control->set_state (*gain_node, version);
}
-
+
return 0;
}
Amp::GainControl::set_value (double val)
{
// max gain at about +6dB (10.0 ^ ( 6 dB * 0.05))
- if (val > 1.99526231f) {
- val = 1.99526231f;
+ if (val > 1.99526231) {
+ val = 1.99526231;
}
_amp->set_gain (val, this);
}
double
-Amp::GainControl::get_value (void) const
+Amp::GainControl::internal_to_interface (double v) const
+{
+ return gain_to_slider_position (v);
+}
+
+double
+Amp::GainControl::interface_to_internal (double v) const
+{
+ return slider_position_to_gain (v);
+}
+
+double
+Amp::GainControl::internal_to_user (double v) const
{
- return AutomationControl::get_value();
+ return accurate_coefficient_to_dB (v);
}
void