pv/data/analog.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 "analog.hpp"
  23 #include "analogsegment.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 Analog::Analog() :
  34         SignalData(),
  35         samplerate_(1)  // Default is 1 Hz to prevent division-by-zero errors
  36 {
  37 }
  38
  39 void Analog::push_segment(shared_ptr<AnalogSegment> &segment)
  40 {
  41         segments_.push_back(segment);
  42
  43         if ((samplerate_ == 1) && (segment->samplerate() > 1))
  44                 samplerate_ = segment->samplerate();
  45
  46         connect(segment.get(), SIGNAL(completed()), this, SLOT(on_segment_completed()));
  47 }
  48
  49 const deque< shared_ptr<AnalogSegment> >& Analog::analog_segments() const
  50 {
  51         return segments_;
  52 }
  53
  54 vector< shared_ptr<Segment> > Analog::segments() const
  55 {
  56         return vector< shared_ptr<Segment> >(
  57                 segments_.begin(), segments_.end());
  58 }
  59
  60 uint32_t Analog::get_segment_count() const
  61 {
  62         return (uint32_t)segments_.size();
  63 }
  64
  65 void Analog::clear()
  66 {
  67         if (!segments_.empty()) {
  68                 segments_.clear();
  69
  70                 samples_cleared();
  71         }
  72 }
  73
  74 void Analog::set_samplerate(double value)
  75 {
  76         samplerate_ = value;
  77 }
  78
  79 double Analog::get_samplerate() const
  80 {
  81         return samplerate_;
  82 }
  83
  84 uint64_t Analog::max_sample_count() const
  85 {
  86         uint64_t l = 0;
  87         for (const shared_ptr<AnalogSegment>& s : segments_) {
  88                 assert(s);
  89                 l = max(l, s->get_sample_count());
  90         }
  91         return l;
  92 }
  93
  94 void Analog::notify_samples_added(shared_ptr<Segment> segment, uint64_t start_sample,
  95         uint64_t end_sample)
  96 {
  97         samples_added(segment, start_sample, end_sample);
  98 }
  99
 100 void Analog::notify_min_max_changed(float min, float max)
 101 {
 102         min_max_changed(min, max);
 103 }
 104
 105 void Analog::on_segment_completed()
 106 {
 107         segment_completed();
 108 }
 109
 110 } // namespace data
 111 } // namespace pv