Marsyas  0.6.0-alpha
/usr/src/RPM/BUILD/marsyas-0.6.0/src/marsyas/marsystems/Fanin.cpp
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00001 /*
00002 ** Copyright (C) 1998-2010 George Tzanetakis <gtzan@cs.uvic.ca>
00003 **
00004 ** This program is free software; you can redistribute it and/or modify
00005 ** it under the terms of the GNU General Public License as published by
00006 ** the Free Software Foundation; either version 2 of the License, or
00007 ** (at your option) any later version.
00008 **
00009 ** This program is distributed in the hope that it will be useful,
00010 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 ** GNU General Public License for more details.
00013 **
00014 ** You should have received a copy of the GNU General Public License
00015 ** along with this program; if not, write to the Free Software
00016 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017 */
00018 
00019 #include "Fanin.h"
00020 
00021 
00022 using std::ostringstream;
00023 using std::vector;
00024 
00025 
00026 using namespace Marsyas;
00027 
00028 Fanin::Fanin(mrs_string name):MarSystem("Fanin", name)
00029 {
00030   isComposite_ = true;
00031 }
00032 
00033 Fanin::Fanin(const Fanin & other):
00034   MarSystem(other)
00035 {
00036   // do not copy slices
00037 }
00038 
00039 Fanin::~Fanin()
00040 {
00041   deleteSlices();
00042 }
00043 
00044 void
00045 Fanin::deleteSlices()
00046 {
00047   vector<realvec *>::const_iterator iter;
00048   for (iter= slices_.begin(); iter != slices_.end(); iter++)
00049   {
00050     delete *(iter);
00051   }
00052   slices_.clear();
00053 }
00054 
00055 MarSystem*
00056 Fanin::clone() const
00057 {
00058   return new Fanin(*this);
00059 }
00060 
00061 void
00062 Fanin::myUpdate(MarControlPtr sender)
00063 {
00064   child_count_t child_count = marsystems_.size();
00065   if (child_count)
00066   {
00067     //propagate in flow controls to first child
00068     marsystems_[0]->setctrl("mrs_natural/inSamples", inSamples_);
00069     marsystems_[0]->setctrl("mrs_real/israte", israte_);
00070     //marsystems_[0]->setctrl("mrs_natural/inObservations", inObservations_);
00071     //marsystems_[0]->setctrl("mrs_string/inObsNames", inObsNames_);
00072     marsystems_[0]->update(sender);
00073 
00074     ostringstream oss;
00075     oss << name_ <<"_mix_0, ";
00076 
00077     mrs_natural inObservations = marsystems_[0]->getctrl("mrs_natural/inObservations")->to<mrs_natural>();
00078 
00079     for (child_count_t i=1; i < child_count; ++i)
00080     {
00081       marsystems_[i]->setctrl("mrs_natural/inSamples", marsystems_[0]->getctrl("mrs_natural/inSamples"));
00082       marsystems_[i]->setctrl("mrs_real/israte", marsystems_[0]->getctrl("mrs_real/israte")); //[!] israte
00083       marsystems_[i]->update(sender);
00084       inObservations += marsystems_[i]->getctrl("mrs_natural/inObservations")->to<mrs_natural>();
00085       oss << name_ << "_mix_" << i << ", ";
00086     }
00087 
00088     // forward flow propagation
00089     setctrl(ctrl_onSamples_, marsystems_[0]->getctrl("mrs_natural/onSamples"));
00090     setctrl(ctrl_onObservations_, 1);
00091     setctrl(ctrl_osrate_, marsystems_[0]->getctrl("mrs_real/osrate"));
00092     setctrl(ctrl_onObsNames_, oss.str());
00093 
00094     // update slices for child MarSystems
00095     if (slices_.size() < child_count)
00096       slices_.resize(child_count, NULL);
00097 
00098     for (child_count_t i=0; i< child_count; ++i)
00099     {
00100       if (slices_[i] != NULL)
00101       {
00102         if ((slices_[i])->getRows() != marsystems_[i]->getctrl("mrs_natural/onObservations")->to<mrs_natural>()  ||
00103             (slices_[i])->getCols() != marsystems_[i]->getctrl("mrs_natural/onSamples")->to<mrs_natural>())
00104         {
00105           delete slices_[i];
00106           slices_[i] = new realvec(marsystems_[i]->getctrl("mrs_natural/onObservations")->to<mrs_natural>(),
00107                                    marsystems_[i]->getctrl("mrs_natural/onSamples")->to<mrs_natural>());
00108         }
00109       }
00110       else
00111       {
00112         slices_[i] = new realvec(marsystems_[i]->getctrl("mrs_natural/onObservations")->to<mrs_natural>(),
00113                                  marsystems_[i]->getctrl("mrs_natural/onSamples")->to<mrs_natural>());
00114       }
00115       (slices_[i])->setval(0.0);
00116     }
00117   }
00118   else //if composite is empty...
00119     MarSystem::myUpdate(sender);
00120 
00121 }
00122 
00123 void
00124 Fanin::myProcess(realvec& in, realvec& out)
00125 {
00126   mrs_natural o,t;
00127   child_count_t child_count = marsystems_.size();
00128   if(child_count)
00129   {
00130     out.setval(0.0);
00131 
00132     // Add assertions about sizes
00133     realvec ob(1,inSamples_);
00134 
00135     for (o=0; o < inObservations_; o++)
00136     {
00137       // process each observation
00138       for (t=0; t < inSamples_; t++)
00139         ob(0,t) = in(o,t);
00140       marsystems_[o]->process(ob, *(slices_[o]));
00141       for (t=0; t < onSamples_; t++)
00142         out(0,t) += (*(slices_[o]))(0,t);
00143     }
00144   }
00145   else //composite has no children!
00146   {
00147     MRSWARN("Fanin::process: composite has no children MarSystems - passing input to output without changes.");
00148     out = in;
00149   }
00150 }