]> sigrok.org Git - pulseview.git/blame - pv/view/logicsignal.cpp
Eliminated get_nominal_offset
[pulseview.git] / pv / view / logicsignal.cpp
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28a4c9c5 1/*
b3f22de0 2 * This file is part of the PulseView project.
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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, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
cef18fc6 21#include <extdef.h>
7cd5faf8 22
cef18fc6 23#include <math.h>
3e46726a 24
28a4c9c5 25#include "logicsignal.h"
2658961b 26#include "view.h"
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27#include "pv/data/logic.h"
28#include "pv/data/logicsnapshot.h"
28a4c9c5 29
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30using namespace boost;
31using namespace std;
81a635d1 32
51e77110 33namespace pv {
8d634081 34namespace view {
51e77110 35
17d94d7c 36const float LogicSignal::Oversampling = 2.0f;
131e8012 37
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38const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80);
39const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00);
40const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00);
131e8012 41
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42const QColor LogicSignal::LogicSignalColours[10] = {
43 QColor(0x16, 0x19, 0x1A), // Black
44 QColor(0x8F, 0x52, 0x02), // Brown
45 QColor(0xCC, 0x00, 0x00), // Red
46 QColor(0xF5, 0x79, 0x00), // Orange
47 QColor(0xED, 0xD4, 0x00), // Yellow
48 QColor(0x73, 0xD2, 0x16), // Green
49 QColor(0x34, 0x65, 0xA4), // Blue
50 QColor(0x75, 0x50, 0x7B), // Violet
51 QColor(0x88, 0x8A, 0x85), // Grey
52 QColor(0xEE, 0xEE, 0xEC), // White
53};
54
1b1ec774 55LogicSignal::LogicSignal(QString name, shared_ptr<data::Logic> data,
28a4c9c5 56 int probe_index) :
2858b391 57 Signal(name),
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58 _probe_index(probe_index),
59 _data(data)
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60{
61 assert(_probe_index >= 0);
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62 _colour = LogicSignalColours[
63 _probe_index % countof(LogicSignalColours)];
28a4c9c5 64}
e3f65ace 65
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66void LogicSignal::paint(QPainter &p, int y, int left, int right,
67 double scale, double offset)
e3f65ace 68{
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69 using pv::view::View;
70
64b60583 71 QLineF *line;
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72
73 vector< pair<int64_t, bool> > edges;
74
fb0d32cb 75 assert(scale > 0);
2858b391 76 assert(_data);
2658961b 77 assert(right >= left);
2858b391 78
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79 const float high_offset = y - View::SignalHeight + 0.5f;
80 const float low_offset = y + 0.5f;
131e8012 81
1b1ec774 82 const deque< shared_ptr<pv::data::LogicSnapshot> > &snapshots =
2858b391 83 _data->get_snapshots();
333d5bbc 84 if (snapshots.empty())
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85 return;
86
1b1ec774 87 const shared_ptr<pv::data::LogicSnapshot> &snapshot =
8d634081 88 snapshots.front();
2858b391 89
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90 const double pixels_offset = offset / scale;
91 const double samplerate = _data->get_samplerate();
92 const double start_time = _data->get_start_time();
652010ea 93 const int64_t last_sample = snapshot->get_sample_count() - 1;
fb0d32cb 94 const double samples_per_pixel = samplerate * scale;
652010ea 95 const double start = samplerate * (offset - start_time);
2658961b 96 const double end = start + samples_per_pixel * (right - left);
2858b391 97
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98 snapshot->get_subsampled_edges(edges,
99 min(max((int64_t)floor(start), (int64_t)0), last_sample),
100 min(max((int64_t)ceil(end), (int64_t)0), last_sample),
17d94d7c 101 samples_per_pixel / Oversampling, _probe_index);
c352ce60 102 assert(edges.size() >= 2);
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103
104 // Paint the edges
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105 const unsigned int edge_count = edges.size() - 2;
106 QLineF *const edge_lines = new QLineF[edge_count];
107 line = edge_lines;
108
1b1ec774 109 for (vector<pv::data::LogicSnapshot::EdgePair>::const_iterator i =
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110 edges.begin() + 1;
111 i != edges.end() - 1; i++) {
ce6e73a8 112 const float x = ((*i).first / samples_per_pixel -
2658961b 113 pixels_offset) + left;
64b60583 114 *line++ = QLineF(x, high_offset, x, low_offset);
2858b391 115 }
81a635d1 116
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117 p.setPen(EdgeColour);
118 p.drawLines(edge_lines, edge_count);
119 delete[] edge_lines;
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120
121 // Paint the caps
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122 const unsigned int max_cap_line_count = (edges.size() - 1);
123 QLineF *const cap_lines = new QLineF[max_cap_line_count];
2858b391 124
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125 p.setPen(HighColour);
126 paint_caps(p, cap_lines, edges, true, samples_per_pixel,
2658961b 127 pixels_offset, left, high_offset);
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128 p.setPen(LowColour);
129 paint_caps(p, cap_lines, edges, false, samples_per_pixel,
2658961b 130 pixels_offset, left, low_offset);
2858b391 131
64b60583 132 delete[] cap_lines;
131e8012 133}
2858b391 134
f4270878 135void LogicSignal::paint_caps(QPainter &p, QLineF *const lines,
131e8012 136 vector< pair<int64_t, bool> > &edges, bool level,
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137 double samples_per_pixel, double pixels_offset, float x_offset,
138 float y_offset)
131e8012 139{
64b60583 140 QLineF *line = lines;
2858b391 141
1b1ec774 142 for (vector<pv::data::LogicSnapshot::EdgePair>::const_iterator i =
8d634081 143 edges.begin(); i != (edges.end() - 1); i++)
333d5bbc 144 if ((*i).second == level) {
64b60583 145 *line++ = QLineF(
ce6e73a8 146 ((*i).first / samples_per_pixel -
64b60583 147 pixels_offset) + x_offset, y_offset,
ce6e73a8 148 ((*(i+1)).first / samples_per_pixel -
64b60583 149 pixels_offset) + x_offset, y_offset);
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150 }
151
64b60583 152 p.drawLines(lines, line - lines);
e3f65ace 153}
3e46726a 154
8d634081 155} // namespace view
51e77110 156} // namespace pv