knob: use double precision normal on dent.
Fixes -0dB vs +0dB rounding issue.
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@ -361,7 +361,7 @@ ArdourKnob::on_motion_notify_event (GdkEventMotion *ev)
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delta = tozero + remain;
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_dead_zone_delta = 0;
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} else {
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c->set_interface(_normal);
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c->set_value (c->normal());
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val = _normal;
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_dead_zone_delta = remain / px_deadzone;
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return true;
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@ -369,7 +369,7 @@ ArdourKnob::on_motion_notify_event (GdkEventMotion *ev)
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}
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if (fabsf (rintf((val - _normal) / scale) + _dead_zone_delta) < 1) {
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c->set_interface(_normal);
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c->set_value (c->normal());
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_dead_zone_delta += delta / px_deadzone;
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return true;
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}
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