forked from Ivasoft/DSView
225 lines
6.2 KiB
C++
225 lines
6.2 KiB
C++
/*
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* This file is part of the DSLogic-gui project.
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* DSLogic-gui is based on PulseView.
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*
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* Copyright (C) 2013 DreamSourceLab <dreamsourcelab@dreamsourcelab.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <extdef.h>
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#include <math.h>
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#include "dsosignal.h"
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#include "pv/data/dso.h"
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#include "pv/data/dsosnapshot.h"
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using namespace boost;
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using namespace std;
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namespace pv {
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namespace view {
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const QColor DsoSignal::SignalColours[4] = {
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QColor(238, 178, 17, 200), // dsYellow
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QColor(0, 153, 37, 200), // dsGreen
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QColor(213, 15, 37, 200), // dsRed
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QColor(17, 133, 209, 200) // dsBlue
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};
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const float DsoSignal::EnvelopeThreshold = 256.0f;
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DsoSignal::DsoSignal(QString name, boost::shared_ptr<data::Dso> data,
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int probe_index, int order, uint64_t vdiv, uint64_t timebase, bool coupling, bool active) :
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Signal(name, probe_index, DS_DSO, order),
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_data(data)
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{
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_colour = SignalColours[probe_index % countof(SignalColours)];
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_scale = _windowHeight * 1.0f / 256;
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_vDial->set_value(vdiv);
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_hDial->set_value(timebase);
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_acCoupling = coupling;
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_active = active;
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}
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DsoSignal::~DsoSignal()
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{
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}
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void DsoSignal::set_data(boost::shared_ptr<data::Logic> _logic_data,
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boost::shared_ptr<data::Dso> _dso_data,
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boost::shared_ptr<pv::data::Analog> _analog_data,
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boost::shared_ptr<data::Group> _group_data)
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{
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(void)_analog_data;
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(void)_logic_data;
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(void)_group_data;
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assert(_dso_data);
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_data = _dso_data;
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}
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void DsoSignal::set_scale(float scale)
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{
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_scale = scale;
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}
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void DsoSignal::paint(QPainter &p, int y, int left, int right, double scale,
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double offset)
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{
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assert(scale > 0);
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assert(_data);
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assert(right >= left);
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const deque< boost::shared_ptr<pv::data::DsoSnapshot> > &snapshots =
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_data->get_snapshots();
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if (snapshots.empty())
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return;
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_scale = _windowHeight * 1.0f / 256;
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const boost::shared_ptr<pv::data::DsoSnapshot> &snapshot =
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snapshots.front();
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const uint16_t number_channels = snapshot->get_channel_num();
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if ((unsigned int)get_index() >= number_channels)
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return;
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const double pixels_offset = offset / scale;
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const double samplerate = _data->get_samplerate();
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const double start_time = _data->get_start_time();
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const int64_t last_sample = max((int64_t)(snapshot->get_sample_count() - 1), (int64_t)0);
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const double samples_per_pixel = samplerate * scale;
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const double start = samplerate * (offset - start_time);
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const double end = start + samples_per_pixel * (right - left);
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const int64_t start_sample = min(max((int64_t)floor(start),
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(int64_t)0), last_sample);
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const int64_t end_sample = min(max((int64_t)ceil(end) + 1,
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(int64_t)0), last_sample);
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if (samples_per_pixel < EnvelopeThreshold)
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paint_trace(p, snapshot, y, left,
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start_sample, end_sample,
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pixels_offset, samples_per_pixel, number_channels);
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else
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paint_envelope(p, snapshot, y, left,
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start_sample, end_sample,
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pixels_offset, samples_per_pixel);
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}
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void DsoSignal::paint_trace(QPainter &p,
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const boost::shared_ptr<pv::data::DsoSnapshot> &snapshot,
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int y, int left, const int64_t start, const int64_t end,
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const double pixels_offset, const double samples_per_pixel, uint64_t num_channels)
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{
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const int64_t sample_count = end - start;
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if (sample_count > 0) {
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const uint8_t *const samples = snapshot->get_samples(start, end, get_index());
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assert(samples);
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p.setPen(_colour);
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//p.setPen(QPen(_colour, 3, Qt::SolidLine));
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QPointF *points = new QPointF[sample_count];
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QPointF *point = points;
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for (int64_t sample = start; sample < end; sample++) {
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const float x = (sample / samples_per_pixel - pixels_offset) + left;
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uint8_t offset = samples[(sample - start)*num_channels];
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*point++ = QPointF(x,
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y - offset * _scale);
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}
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p.drawPolyline(points, point - points);
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//delete[] samples;
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delete[] points;
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}
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}
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void DsoSignal::paint_envelope(QPainter &p,
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const boost::shared_ptr<pv::data::DsoSnapshot> &snapshot,
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int y, int left, const int64_t start, const int64_t end,
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const double pixels_offset, const double samples_per_pixel)
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{
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using namespace Qt;
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using pv::data::DsoSnapshot;
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DsoSnapshot::EnvelopeSection e;
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snapshot->get_envelope_section(e, start, end, samples_per_pixel, get_index());
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if (e.length < 2)
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return;
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p.setPen(QPen(NoPen));
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//p.setPen(QPen(_colour, 2, Qt::SolidLine));
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p.setBrush(_colour);
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QRectF *const rects = new QRectF[e.length];
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QRectF *rect = rects;
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for(uint64_t sample = 0; sample < e.length-1; sample++) {
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const float x = ((e.scale * sample + e.start) /
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samples_per_pixel - pixels_offset) + left;
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const DsoSnapshot::EnvelopeSample *const s =
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e.samples + sample;
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// We overlap this sample with the next so that vertical
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// gaps do not appear during steep rising or falling edges
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const float b = y - max(s->max, (s+1)->min) * _scale;
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const float t = y - min(s->min, (s+1)->max) * _scale;
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float h = b - t;
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if(h >= 0.0f && h <= 1.0f)
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h = 1.0f;
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if(h <= 0.0f && h >= -1.0f)
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h = -1.0f;
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*rect++ = QRectF(x, t, 1.0f, h);
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}
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p.drawRects(rects, e.length);
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delete[] rects;
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//delete[] e.samples;
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}
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const std::vector< std::pair<uint64_t, bool> > DsoSignal::cur_edges() const
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{
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}
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void DsoSignal::set_decoder(pv::decoder::Decoder *decoder)
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{
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(void)decoder;
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}
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decoder::Decoder *DsoSignal::get_decoder()
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{
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return NULL;
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}
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void DsoSignal::del_decoder()
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{
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}
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} // namespace view
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} // namespace pv
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