pv/data/logic.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <cassert>
  21
  22 #include "logic.hpp"
  23 #include "logicsegment.hpp"
  24
  25 using std::deque;
  26 using std::max;
  27 using std::shared_ptr;
  28 using std::vector;
  29
  30 namespace pv {
  31 namespace data {
  32
  33 Logic::Logic(unsigned int num_channels) :
  34         SignalData(),
  35         samplerate_(1),  // Default is 1 Hz to prevent division-by-zero errors
  36         num_channels_(num_channels)
  37 {
  38         assert(num_channels_ > 0);
  39 }
  40
  41 unsigned int Logic::num_channels() const
  42 {
  43         return num_channels_;
  44 }
  45
  46 void Logic::push_segment(shared_ptr<LogicSegment> &segment)
  47 {
  48         segments_.push_back(segment);
  49
  50         if ((samplerate_ == 1) && (segment->samplerate() > 1))
  51                 samplerate_ = segment->samplerate();
  52
  53         connect(segment.get(), SIGNAL(completed()), this, SLOT(on_segment_completed()));
  54 }
  55
  56 const deque< shared_ptr<LogicSegment> >& Logic::logic_segments() const
  57 {
  58         return segments_;
  59 }
  60
  61 deque< shared_ptr<LogicSegment> >& Logic::logic_segments()
  62 {
  63         return segments_;
  64 }
  65
  66 vector< shared_ptr<Segment> > Logic::segments() const
  67 {
  68         return vector< shared_ptr<Segment> >(segments_.begin(), segments_.end());
  69 }
  70
  71 uint32_t Logic::get_segment_count() const
  72 {
  73         return (uint32_t)segments_.size();
  74 }
  75
  76 void Logic::clear()
  77 {
  78         if (!segments_.empty()) {
  79                 segments_.clear();
  80
  81                 samples_cleared();
  82         }
  83 }
  84
  85 void Logic::set_samplerate(double value)
  86 {
  87         samplerate_ = value;
  88 }
  89
  90 double Logic::get_samplerate() const
  91 {
  92         return samplerate_;
  93 }
  94
  95 uint64_t Logic::max_sample_count() const
  96 {
  97         uint64_t l = 0;
  98         for (const shared_ptr<LogicSegment>& s : segments_) {
  99                 assert(s);
 100                 l = max(l, s->get_sample_count());
 101         }
 102         return l;
 103 }
 104
 105 void Logic::notify_samples_added(shared_ptr<Segment> segment, uint64_t start_sample,
 106         uint64_t end_sample)
 107 {
 108         samples_added(segment, start_sample, end_sample);
 109 }
 110
 111 void Logic::on_segment_completed()
 112 {
 113         segment_completed();
 114 }
 115
 116 } // namespace data
 117 } // namespace pv