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28a4c9c5 | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
28a4c9c5 JH |
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" |
1b1ec774 JH |
27 | #include "pv/data/logic.h" |
28 | #include "pv/data/logicsnapshot.h" | |
28a4c9c5 | 29 | |
2858b391 JH |
30 | using namespace boost; |
31 | using namespace std; | |
81a635d1 | 32 | |
51e77110 | 33 | namespace pv { |
8d634081 | 34 | namespace view { |
51e77110 | 35 | |
17d94d7c | 36 | const float LogicSignal::Oversampling = 2.0f; |
131e8012 | 37 | |
64b60583 JH |
38 | const QColor LogicSignal::EdgeColour(0x80, 0x80, 0x80); |
39 | const QColor LogicSignal::HighColour(0x00, 0xC0, 0x00); | |
40 | const QColor LogicSignal::LowColour(0xC0, 0x00, 0x00); | |
131e8012 | 41 | |
299d0e75 | 42 | const QColor LogicSignal::SignalColours[10] = { |
3e46726a JH |
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 | 55 | LogicSignal::LogicSignal(QString name, shared_ptr<data::Logic> data, |
28a4c9c5 | 56 | int probe_index) : |
2858b391 | 57 | Signal(name), |
28a1af55 JH |
58 | _probe_index(probe_index), |
59 | _data(data) | |
28a4c9c5 JH |
60 | { |
61 | assert(_probe_index >= 0); | |
299d0e75 | 62 | _colour = SignalColours[_probe_index % countof(SignalColours)]; |
28a4c9c5 | 63 | } |
e3f65ace | 64 | |
2658961b JH |
65 | void LogicSignal::paint(QPainter &p, int y, int left, int right, |
66 | double scale, double offset) | |
e3f65ace | 67 | { |
2658961b JH |
68 | using pv::view::View; |
69 | ||
64b60583 | 70 | QLineF *line; |
2858b391 JH |
71 | |
72 | vector< pair<int64_t, bool> > edges; | |
73 | ||
fb0d32cb | 74 | assert(scale > 0); |
2858b391 | 75 | assert(_data); |
2658961b | 76 | assert(right >= left); |
2858b391 | 77 | |
3ef6182a JH |
78 | paint_axis(p, y, left, right); |
79 | ||
2658961b JH |
80 | const float high_offset = y - View::SignalHeight + 0.5f; |
81 | const float low_offset = y + 0.5f; | |
131e8012 | 82 | |
1b1ec774 | 83 | const deque< shared_ptr<pv::data::LogicSnapshot> > &snapshots = |
2858b391 | 84 | _data->get_snapshots(); |
333d5bbc | 85 | if (snapshots.empty()) |
2858b391 JH |
86 | return; |
87 | ||
1b1ec774 | 88 | const shared_ptr<pv::data::LogicSnapshot> &snapshot = |
8d634081 | 89 | snapshots.front(); |
2858b391 | 90 | |
9d4e5cd8 JH |
91 | double samplerate = _data->get_samplerate(); |
92 | ||
93 | // Show sample rate as 1Hz when it is unknown | |
9ba4ca35 | 94 | if (samplerate == 0.0) |
9d4e5cd8 JH |
95 | samplerate = 1.0; |
96 | ||
fb0d32cb | 97 | const double pixels_offset = offset / scale; |
fb0d32cb | 98 | const double start_time = _data->get_start_time(); |
652010ea | 99 | const int64_t last_sample = snapshot->get_sample_count() - 1; |
fb0d32cb | 100 | const double samples_per_pixel = samplerate * scale; |
652010ea | 101 | const double start = samplerate * (offset - start_time); |
2658961b | 102 | const double end = start + samples_per_pixel * (right - left); |
2858b391 | 103 | |
652010ea JH |
104 | snapshot->get_subsampled_edges(edges, |
105 | min(max((int64_t)floor(start), (int64_t)0), last_sample), | |
106 | min(max((int64_t)ceil(end), (int64_t)0), last_sample), | |
17d94d7c | 107 | samples_per_pixel / Oversampling, _probe_index); |
c352ce60 | 108 | assert(edges.size() >= 2); |
2858b391 JH |
109 | |
110 | // Paint the edges | |
64b60583 JH |
111 | const unsigned int edge_count = edges.size() - 2; |
112 | QLineF *const edge_lines = new QLineF[edge_count]; | |
113 | line = edge_lines; | |
114 | ||
1b1ec774 | 115 | for (vector<pv::data::LogicSnapshot::EdgePair>::const_iterator i = |
64b60583 JH |
116 | edges.begin() + 1; |
117 | i != edges.end() - 1; i++) { | |
ce6e73a8 | 118 | const float x = ((*i).first / samples_per_pixel - |
2658961b | 119 | pixels_offset) + left; |
64b60583 | 120 | *line++ = QLineF(x, high_offset, x, low_offset); |
2858b391 | 121 | } |
81a635d1 | 122 | |
64b60583 JH |
123 | p.setPen(EdgeColour); |
124 | p.drawLines(edge_lines, edge_count); | |
125 | delete[] edge_lines; | |
2858b391 JH |
126 | |
127 | // Paint the caps | |
64b60583 JH |
128 | const unsigned int max_cap_line_count = (edges.size() - 1); |
129 | QLineF *const cap_lines = new QLineF[max_cap_line_count]; | |
2858b391 | 130 | |
64b60583 JH |
131 | p.setPen(HighColour); |
132 | paint_caps(p, cap_lines, edges, true, samples_per_pixel, | |
2658961b | 133 | pixels_offset, left, high_offset); |
64b60583 JH |
134 | p.setPen(LowColour); |
135 | paint_caps(p, cap_lines, edges, false, samples_per_pixel, | |
2658961b | 136 | pixels_offset, left, low_offset); |
2858b391 | 137 | |
64b60583 | 138 | delete[] cap_lines; |
131e8012 | 139 | } |
2858b391 | 140 | |
f4270878 | 141 | void LogicSignal::paint_caps(QPainter &p, QLineF *const lines, |
131e8012 | 142 | vector< pair<int64_t, bool> > &edges, bool level, |
ce6e73a8 JH |
143 | double samples_per_pixel, double pixels_offset, float x_offset, |
144 | float y_offset) | |
131e8012 | 145 | { |
64b60583 | 146 | QLineF *line = lines; |
2858b391 | 147 | |
1b1ec774 | 148 | for (vector<pv::data::LogicSnapshot::EdgePair>::const_iterator i = |
8d634081 | 149 | edges.begin(); i != (edges.end() - 1); i++) |
333d5bbc | 150 | if ((*i).second == level) { |
64b60583 | 151 | *line++ = QLineF( |
ce6e73a8 | 152 | ((*i).first / samples_per_pixel - |
64b60583 | 153 | pixels_offset) + x_offset, y_offset, |
ce6e73a8 | 154 | ((*(i+1)).first / samples_per_pixel - |
64b60583 | 155 | pixels_offset) + x_offset, y_offset); |
131e8012 JH |
156 | } |
157 | ||
64b60583 | 158 | p.drawLines(lines, line - lines); |
e3f65ace | 159 | } |
3e46726a | 160 | |
8d634081 | 161 | } // namespace view |
51e77110 | 162 | } // namespace pv |