/* gstreamermm - a C++ wrapper for gstreamer
 *
 * Copyright 2008 The gstreamermm Development Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <gst/audio/gstaudiosink.h>
_PINCLUDE(gstreamermm/private/baseaudiosink_p.h)

namespace Gst
{

gboolean AudioSink_Class::prepare_vfunc_callback(GstAudioSink* self, GstRingBufferSpec* spec)
{
  Glib::ObjectBase *const obj_base = static_cast<Glib::ObjectBase*>(
      Glib::ObjectBase::_get_current_wrapper((GObject*)self));

  // Non-gtkmmproc-generated custom classes implicitly call the default
  // Glib::ObjectBase constructor, which sets is_derived_. But gtkmmproc-
  // generated classes can use this optimisation, which avoids the unnecessary
  // parameter conversions if there is no possibility of the virtual function
  // being overridden:
  if(obj_base && obj_base->is_derived_())
  {
    CppObjectType *const obj = dynamic_cast<CppObjectType* const>(obj_base);
    if(obj) // This can be NULL during destruction.
    {
      try // Trap C++ exceptions which would normally be lost because this is a C callback.
      {
        Gst::RingBufferSpec cpp_spec(*spec);

        // Call the virtual member method, which derived classes might override.
        return static_cast<int>(obj->prepare_vfunc(cpp_spec));
      }
      catch(...)
      {
        Glib::exception_handlers_invoke();
      }
    }
  }
  
  BaseClassType *const base = static_cast<BaseClassType*>(
      g_type_class_peek_parent(G_OBJECT_GET_CLASS(self)) // Get the parent class of the object class (The original underlying C class).
  );

  // Call the original underlying C function:
  if(base && base->prepare)
    return (*base->prepare)(self, spec);


  typedef gboolean RType;
  return RType();
}
bool Gst::AudioSink::prepare_vfunc(Gst::RingBufferSpec& spec)
{
  BaseClassType *const base = static_cast<BaseClassType*>(
      g_type_class_peek_parent(G_OBJECT_GET_CLASS(gobject_)) // Get the parent class of the object class (The original underlying C class).
  );

  if(base && base->prepare)
    return static_cast<bool>((*base->prepare)(gobj(),spec.gobj()));

  typedef bool RType;
  return RType();
}
guint AudioSink_Class::write_vfunc_callback(GstAudioSink* self, gpointer data, guint length)
{
  Glib::ObjectBase *const obj_base = static_cast<Glib::ObjectBase*>(
      Glib::ObjectBase::_get_current_wrapper((GObject*)self));

  // Non-gtkmmproc-generated custom classes implicitly call the default
  // Glib::ObjectBase constructor, which sets is_derived_. But gtkmmproc-
  // generated classes can use this optimisation, which avoids the unnecessary
  // parameter conversions if there is no possibility of the virtual function
  // being overridden:
  if(obj_base && obj_base->is_derived_())
  {
    CppObjectType *const obj = dynamic_cast<CppObjectType* const>(obj_base);
    if(obj) // This can be NULL during destruction.
    {
      try // Trap C++ exceptions which would normally be lost because this is a C callback.
      {
        // Call the virtual member method, which derived classes might override.
        return obj->write_vfunc(data, length);
      }
      catch(...)
      {
        Glib::exception_handlers_invoke();
      }
    }
  }
  
  BaseClassType *const base = static_cast<BaseClassType*>(
      g_type_class_peek_parent(G_OBJECT_GET_CLASS(self)) // Get the parent class of the object class (The original underlying C class).
  );

  // Call the original underlying C function:
  if(base && base->write)
    return (*base->write)(self, data, length);


  typedef guint RType;
  return RType();
}
guint Gst::AudioSink::write_vfunc(const void* data, guint length)
{
  BaseClassType *const base = static_cast<BaseClassType*>(
      g_type_class_peek_parent(G_OBJECT_GET_CLASS(gobject_)) // Get the parent class of the object class (The original underlying C class).
  );

  if(base && base->write)
    return (*base->write)(gobj(),const_cast<void*>(data),length);

  typedef guint RType;
  return RType();
}

} // namespace Gst
