]>
Commit | Line | Data |
---|---|---|
0fbda3c2 JH |
1 | /* |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2014 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 | ||
d2344534 JH |
21 | #include <cassert> |
22 | ||
2acdb232 | 23 | #include "storesession.hpp" |
0fbda3c2 | 24 | |
f65cd27b | 25 | #include <pv/session.hpp> |
2acdb232 | 26 | #include <pv/data/logic.hpp> |
f3d66e52 | 27 | #include <pv/data/logicsegment.hpp> |
2acdb232 | 28 | #include <pv/view/signal.hpp> |
0fbda3c2 | 29 | |
e8d00928 ML |
30 | #include <libsigrok/libsigrok.hpp> |
31 | ||
aca64cac JH |
32 | using boost::shared_lock; |
33 | using boost::shared_mutex; | |
34 | ||
0fbda3c2 | 35 | using std::deque; |
f9abf97e | 36 | using std::dynamic_pointer_cast; |
3b68d03d | 37 | using std::lock_guard; |
0fbda3c2 JH |
38 | using std::make_pair; |
39 | using std::min; | |
3b68d03d | 40 | using std::mutex; |
0fbda3c2 JH |
41 | using std::pair; |
42 | using std::set; | |
f9abf97e | 43 | using std::shared_ptr; |
0fbda3c2 | 44 | using std::string; |
3b68d03d | 45 | using std::thread; |
0fbda3c2 JH |
46 | using std::vector; |
47 | ||
7223eb62 | 48 | using sigrok::ConfigKey; |
e8d00928 ML |
49 | using sigrok::Error; |
50 | ||
0fbda3c2 JH |
51 | namespace pv { |
52 | ||
53 | const size_t StoreSession::BlockSize = 1024 * 1024; | |
54 | ||
55 | StoreSession::StoreSession(const std::string &file_name, | |
2b81ae46 | 56 | const Session &session) : |
8dbbc7f0 JH |
57 | file_name_(file_name), |
58 | session_(session), | |
59 | interrupt_(false), | |
60 | units_stored_(0), | |
61 | unit_count_(0) | |
0fbda3c2 JH |
62 | { |
63 | } | |
64 | ||
65 | StoreSession::~StoreSession() | |
66 | { | |
67 | wait(); | |
68 | } | |
69 | ||
e40b2f29 | 70 | pair<int, int> StoreSession::progress() const |
0fbda3c2 | 71 | { |
8dbbc7f0 | 72 | return make_pair(units_stored_.load(), unit_count_.load()); |
0fbda3c2 JH |
73 | } |
74 | ||
75 | const QString& StoreSession::error() const | |
76 | { | |
8dbbc7f0 JH |
77 | lock_guard<mutex> lock(mutex_); |
78 | return error_; | |
0fbda3c2 JH |
79 | } |
80 | ||
81 | bool StoreSession::start() | |
82 | { | |
83 | set< shared_ptr<data::SignalData> > data_set = | |
8dbbc7f0 | 84 | session_.get_data(); |
c3a740dd | 85 | |
8dbbc7f0 JH |
86 | shared_lock<shared_mutex> lock(session_.signals_mutex()); |
87 | const vector< shared_ptr<view::Signal> > &sigs(session_.signals()); | |
0fbda3c2 JH |
88 | |
89 | // Check we have logic data | |
90 | if (data_set.empty() || sigs.empty()) { | |
8dbbc7f0 | 91 | error_ = tr("No data to save."); |
0fbda3c2 JH |
92 | return false; |
93 | } | |
94 | ||
95 | if (data_set.size() > 1) { | |
8dbbc7f0 | 96 | error_ = tr("PulseView currently only has support for " |
0fbda3c2 JH |
97 | "storing a single data stream."); |
98 | return false; | |
99 | } | |
100 | ||
101 | // Get the logic data | |
0fbda3c2 JH |
102 | shared_ptr<data::Logic> data; |
103 | if (!(data = dynamic_pointer_cast<data::Logic>(*data_set.begin()))) { | |
8dbbc7f0 | 104 | error_ = tr("PulseView currently only has support for " |
0fbda3c2 JH |
105 | "storing a logic data."); |
106 | return false; | |
107 | } | |
108 | ||
f3d66e52 JH |
109 | // Get the segment |
110 | const deque< shared_ptr<data::LogicSegment> > &segments = | |
111 | data->logic_segments(); | |
0fbda3c2 | 112 | |
f3d66e52 JH |
113 | if (segments.empty()) { |
114 | error_ = tr("No segments to save."); | |
0fbda3c2 JH |
115 | return false; |
116 | } | |
117 | ||
f3d66e52 JH |
118 | const shared_ptr<data::LogicSegment> segment(segments.front()); |
119 | assert(segment); | |
0fbda3c2 | 120 | |
0fbda3c2 | 121 | // Begin storing |
e8d00928 | 122 | try { |
8dbbc7f0 | 123 | auto context = session_.session()->context(); |
7223eb62 | 124 | auto output_format = context->output_formats()["srzip"]; |
8dbbc7f0 JH |
125 | auto device = session_.device(); |
126 | output_ = output_format->create_output(device, | |
7223eb62 | 127 | {{"filename", |
8dbbc7f0 | 128 | Glib::Variant<Glib::ustring>::create(file_name_)}}); |
7223eb62 | 129 | auto meta = context->create_meta_packet( |
ff008de6 | 130 | {{ConfigKey::SAMPLERATE, Glib::Variant<guint64>::create( |
f3d66e52 | 131 | segment->samplerate())}}); |
8dbbc7f0 | 132 | output_->receive(meta); |
e8d00928 | 133 | } catch (Error error) { |
8dbbc7f0 | 134 | error_ = tr("Error while saving."); |
0fbda3c2 JH |
135 | return false; |
136 | } | |
137 | ||
f3d66e52 | 138 | thread_ = std::thread(&StoreSession::store_proc, this, segment); |
0fbda3c2 JH |
139 | return true; |
140 | } | |
141 | ||
142 | void StoreSession::wait() | |
143 | { | |
8dbbc7f0 JH |
144 | if (thread_.joinable()) |
145 | thread_.join(); | |
0fbda3c2 JH |
146 | } |
147 | ||
148 | void StoreSession::cancel() | |
149 | { | |
8dbbc7f0 | 150 | interrupt_ = true; |
0fbda3c2 JH |
151 | } |
152 | ||
f3d66e52 | 153 | void StoreSession::store_proc(shared_ptr<data::LogicSegment> segment) |
0fbda3c2 | 154 | { |
f3d66e52 | 155 | assert(segment); |
0fbda3c2 | 156 | |
e40b2f29 MC |
157 | uint64_t start_sample = 0, sample_count; |
158 | unsigned progress_scale = 0; | |
0fbda3c2 JH |
159 | |
160 | /// TODO: Wrap this in a std::unique_ptr when we transition to C++11 | |
161 | uint8_t *const data = new uint8_t[BlockSize]; | |
162 | assert(data); | |
163 | ||
f3d66e52 | 164 | const int unit_size = segment->unit_size(); |
0fbda3c2 JH |
165 | assert(unit_size != 0); |
166 | ||
f3d66e52 | 167 | sample_count = segment->get_sample_count(); |
e40b2f29 MC |
168 | |
169 | // Qt needs the progress values to fit inside an int. If they would | |
170 | // not, scale the current and max values down until they do. | |
171 | while ((sample_count >> progress_scale) > INT_MAX) | |
172 | progress_scale ++; | |
173 | ||
8dbbc7f0 | 174 | unit_count_ = sample_count >> progress_scale; |
0fbda3c2 JH |
175 | |
176 | const unsigned int samples_per_block = BlockSize / unit_size; | |
177 | ||
8dbbc7f0 | 178 | while (!interrupt_ && start_sample < sample_count) |
0fbda3c2 JH |
179 | { |
180 | progress_updated(); | |
181 | ||
182 | const uint64_t end_sample = min( | |
e40b2f29 | 183 | start_sample + samples_per_block, sample_count); |
f3d66e52 | 184 | segment->get_samples(data, start_sample, end_sample); |
0fbda3c2 | 185 | |
e8d00928 ML |
186 | size_t length = end_sample - start_sample; |
187 | ||
188 | try { | |
8dbbc7f0 | 189 | auto context = session_.session()->context(); |
7223eb62 | 190 | auto logic = context->create_logic_packet(data, length, unit_size); |
8dbbc7f0 | 191 | output_->receive(logic); |
e8d00928 | 192 | } catch (Error error) { |
8dbbc7f0 | 193 | error_ = tr("Error while saving."); |
0fbda3c2 JH |
194 | break; |
195 | } | |
196 | ||
197 | start_sample = end_sample; | |
8dbbc7f0 | 198 | units_stored_ = start_sample >> progress_scale; |
0fbda3c2 JH |
199 | } |
200 | ||
e0e560a5 JH |
201 | // Zeroing the progress variables indicates completion |
202 | units_stored_ = unit_count_ = 0; | |
203 | ||
0fbda3c2 JH |
204 | progress_updated(); |
205 | ||
8dbbc7f0 | 206 | output_.reset(); |
7223eb62 | 207 | |
0fbda3c2 JH |
208 | delete[] data; |
209 | } | |
210 | ||
211 | } // pv |