fix crash when copy'ing latent plugins

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

diff --git a/libs/ardour/panner.cc b/libs/ardour/panner.cc
index 9ad49c12c5808308c4a6d8fc9f0b60671a1b2f47..59e4e2e977952841f98d7d68601899483597f184 100644 (file)
--- a/libs/ardour/panner.cc
+++ b/libs/ardour/panner.cc
@@ -17,123 +17,119 @@
 
 */
 
-#include "ardour/audio_buffer.h"
 #include "ardour/buffer_set.h"
+#include "ardour/debug.h"
 #include "ardour/panner.h"
 #include "ardour/pannable.h"
-#include "ardour/session.h"
-#include "ardour/utils.h"
+
+#include "pbd/i18n.h"
 
 using namespace std;
 using namespace ARDOUR;
 
 Panner::Panner (boost::shared_ptr<Pannable> p)
-       : _pannable (p)
-       , _bypassed (false)
+       : _frozen (0)
 {
+       // boost_debug_shared_ptr_mark_interesting (this, "panner");
+       _pannable = p;
 }
 
 Panner::~Panner ()
 {
-}
-
-void
-Panner::set_bypassed (bool yn)
-{
-       if (yn != _bypassed) {
-               _bypassed = yn;
-               StateChanged ();
-       }
-}
-
-int
-Panner::set_state (const XMLNode& node, int version)
-{
-       const XMLProperty* prop;
-       XMLNodeConstIterator iter;
-
-       if ((prop = node.property (X_("bypassed"))) != 0) {
-               set_bypassed (string_is_affirmative (prop->value()));
-       }
-
-       return 0;
+       DEBUG_TRACE(PBD::DEBUG::Destruction, string_compose ("panner @ %1 destructor, pannable is %2 @ %3\n", this, _pannable, &_pannable));
 }
 
 XMLNode&
 Panner::get_state ()
 {
-        XMLNode* node = new XMLNode (X_("Panner"));
-
-       node->add_property (X_("bypassed"), (bypassed() ? "yes" : "no"));
-
-        return *node;
+       return *(new XMLNode (X_("Panner")));
 }
 
 void
 Panner::distribute (BufferSet& ibufs, BufferSet& obufs, gain_t gain_coeff, pframes_t nframes)
 {
-        uint32_t which = 0;
+       uint32_t which = 0;
 
        for (BufferSet::audio_iterator src = ibufs.audio_begin(); src != ibufs.audio_end(); ++src, ++which) {
                distribute_one (*src, obufs, gain_coeff, nframes, which);
-        }
+       }
 }
 
 void
 Panner::distribute_automated (BufferSet& ibufs, BufferSet& obufs,
                               framepos_t start, framepos_t end, pframes_t nframes, pan_t** buffers)
 {
-        uint32_t which = 0;
+       uint32_t which = 0;
 
        for (BufferSet::audio_iterator src = ibufs.audio_begin(); src != ibufs.audio_end(); ++src, ++which) {
                distribute_one_automated (*src, obufs, start, end, nframes, buffers, which);
-        }
+       }
 }
 
 void
 Panner::set_automation_style (AutoStyle style)
 {
-        _pannable->set_automation_style (style);
+       _pannable->set_automation_style (style);
 }
 
 void
 Panner::set_automation_state (AutoState state)
 {
-        _pannable->set_automation_state (state);
+       _pannable->set_automation_state (state);
 }
 
 AutoState
 Panner::automation_state () const
 {
-        return _pannable->automation_state();
+       return _pannable->automation_state();
 }
 
 AutoStyle
 Panner::automation_style () const
 {
-        return _pannable->automation_style ();
+       return _pannable->automation_style ();
 }
 
 bool
 Panner::touching () const
 {
-        return _pannable->touching ();
+       return _pannable->touching ();
 }
 
-set<Evoral::Parameter> 
+set<Evoral::Parameter>
 Panner::what_can_be_automated() const
 {
-        return _pannable->what_can_be_automated ();
+       return _pannable->what_can_be_automated ();
 }
 
 string
 Panner::describe_parameter (Evoral::Parameter p)
 {
-        return _pannable->describe_parameter (p);
+       return _pannable->describe_parameter (p);
+}
+
+string
+Panner::value_as_string (boost::shared_ptr<const AutomationControl> ac) const
+{
+       return _pannable->value_as_string (ac);
+}
+
+int
+Panner::set_state (XMLNode const &, int)
+{
+       return 0;
+}
+
+void
+Panner::freeze ()
+{
+       _frozen++;
 }
 
-string 
-Panner::value_as_string (boost::shared_ptr<AutomationControl> ac) const
+void
+Panner::thaw ()
 {
-        return _pannable->value_as_string (ac);
+       if (_frozen > 0.0) {
+               _frozen--;
+       }
 }