]>
Commit | Line | Data |
---|---|---|
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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <cassert> | |
21 | ||
22 | #include "storesession.hpp" | |
23 | ||
24 | #include <pv/data/analog.hpp> | |
25 | #include <pv/data/analogsegment.hpp> | |
26 | #include <pv/data/logic.hpp> | |
27 | #include <pv/data/logicsegment.hpp> | |
28 | #include <pv/data/signalbase.hpp> | |
29 | #include <pv/devicemanager.hpp> | |
30 | #include <pv/devices/device.hpp> | |
31 | #include <pv/session.hpp> | |
32 | ||
33 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
34 | ||
35 | using std::deque; | |
36 | using std::ios_base; | |
37 | using std::lock_guard; | |
38 | using std::make_pair; | |
39 | using std::map; | |
40 | using std::min; | |
41 | using std::mutex; | |
42 | using std::pair; | |
43 | using std::shared_ptr; | |
44 | using std::string; | |
45 | using std::unordered_set; | |
46 | using std::vector; | |
47 | ||
48 | using Glib::VariantBase; | |
49 | ||
50 | using sigrok::ConfigKey; | |
51 | using sigrok::Error; | |
52 | using sigrok::OutputFormat; | |
53 | using sigrok::OutputFlag; | |
54 | ||
55 | namespace pv { | |
56 | ||
57 | const size_t StoreSession::BlockSize = 10 * 1024 * 1024; | |
58 | ||
59 | StoreSession::StoreSession(const string &file_name, | |
60 | const shared_ptr<OutputFormat> &output_format, | |
61 | const map<string, VariantBase> &options, | |
62 | const pair<uint64_t, uint64_t> sample_range, | |
63 | const Session &session) : | |
64 | file_name_(file_name), | |
65 | output_format_(output_format), | |
66 | options_(options), | |
67 | sample_range_(sample_range), | |
68 | session_(session), | |
69 | interrupt_(false), | |
70 | units_stored_(0), | |
71 | unit_count_(0) | |
72 | { | |
73 | } | |
74 | ||
75 | StoreSession::~StoreSession() | |
76 | { | |
77 | wait(); | |
78 | } | |
79 | ||
80 | pair<int, int> StoreSession::progress() const | |
81 | { | |
82 | return make_pair(units_stored_.load(), unit_count_.load()); | |
83 | } | |
84 | ||
85 | const QString& StoreSession::error() const | |
86 | { | |
87 | lock_guard<mutex> lock(mutex_); | |
88 | return error_; | |
89 | } | |
90 | ||
91 | bool StoreSession::start() | |
92 | { | |
93 | const unordered_set< shared_ptr<data::SignalBase> > sigs(session_.signalbases()); | |
94 | ||
95 | shared_ptr<data::Segment> any_segment; | |
96 | shared_ptr<data::LogicSegment> lsegment; | |
97 | vector< shared_ptr<data::SignalBase> > achannel_list; | |
98 | vector< shared_ptr<data::AnalogSegment> > asegment_list; | |
99 | ||
100 | for (shared_ptr<data::SignalBase> signal : sigs) { | |
101 | if (!signal->enabled()) | |
102 | continue; | |
103 | ||
104 | if (signal->type() == data::SignalBase::LogicChannel) { | |
105 | // All logic channels share the same data segments | |
106 | shared_ptr<data::Logic> ldata = signal->logic_data(); | |
107 | ||
108 | const deque< shared_ptr<data::LogicSegment> > &lsegments = | |
109 | ldata->logic_segments(); | |
110 | ||
111 | if (lsegments.empty()) { | |
112 | error_ = tr("Can't save logic channel without data."); | |
113 | return false; | |
114 | } | |
115 | ||
116 | lsegment = lsegments.front(); | |
117 | any_segment = lsegment; | |
118 | } | |
119 | ||
120 | if (signal->type() == data::SignalBase::AnalogChannel) { | |
121 | // Each analog channel has its own segments | |
122 | shared_ptr<data::Analog> adata = signal->analog_data(); | |
123 | ||
124 | const deque< shared_ptr<data::AnalogSegment> > &asegments = | |
125 | adata->analog_segments(); | |
126 | ||
127 | if (asegments.empty()) { | |
128 | error_ = tr("Can't save analog channel without data."); | |
129 | return false; | |
130 | } | |
131 | ||
132 | asegment_list.push_back(asegments.front()); | |
133 | any_segment = asegments.front(); | |
134 | ||
135 | achannel_list.push_back(signal); | |
136 | } | |
137 | } | |
138 | ||
139 | if (!any_segment) { | |
140 | error_ = tr("No channels enabled."); | |
141 | return false; | |
142 | } | |
143 | ||
144 | // Check whether the user wants to export a certain sample range | |
145 | uint64_t end_sample; | |
146 | ||
147 | if (sample_range_.first == sample_range_.second) { | |
148 | start_sample_ = 0; | |
149 | sample_count_ = any_segment->get_sample_count(); | |
150 | } else { | |
151 | if (sample_range_.first > sample_range_.second) { | |
152 | start_sample_ = sample_range_.second; | |
153 | end_sample = min(sample_range_.first, any_segment->get_sample_count()); | |
154 | sample_count_ = end_sample - start_sample_; | |
155 | } else { | |
156 | start_sample_ = sample_range_.first; | |
157 | end_sample = min(sample_range_.second, any_segment->get_sample_count()); | |
158 | sample_count_ = end_sample - start_sample_; | |
159 | } | |
160 | } | |
161 | ||
162 | // Begin storing | |
163 | try { | |
164 | const auto context = session_.device_manager().context(); | |
165 | auto device = session_.device()->device(); | |
166 | ||
167 | map<string, Glib::VariantBase> options = options_; | |
168 | ||
169 | if (!output_format_->test_flag(OutputFlag::INTERNAL_IO_HANDLING)) | |
170 | output_stream_.open(file_name_, ios_base::binary | | |
171 | ios_base::trunc | ios_base::out); | |
172 | ||
173 | output_ = output_format_->create_output(file_name_, device, options); | |
174 | auto meta = context->create_meta_packet( | |
175 | {{ConfigKey::SAMPLERATE, Glib::Variant<guint64>::create( | |
176 | any_segment->samplerate())}}); | |
177 | output_->receive(meta); | |
178 | } catch (Error error) { | |
179 | error_ = tr("Error while saving: ") + error.what(); | |
180 | return false; | |
181 | } | |
182 | ||
183 | thread_ = std::thread(&StoreSession::store_proc, this, | |
184 | achannel_list, asegment_list, lsegment); | |
185 | return true; | |
186 | } | |
187 | ||
188 | void StoreSession::wait() | |
189 | { | |
190 | if (thread_.joinable()) | |
191 | thread_.join(); | |
192 | } | |
193 | ||
194 | void StoreSession::cancel() | |
195 | { | |
196 | interrupt_ = true; | |
197 | } | |
198 | ||
199 | void StoreSession::store_proc(vector< shared_ptr<data::SignalBase> > achannel_list, | |
200 | vector< shared_ptr<data::AnalogSegment> > asegment_list, | |
201 | shared_ptr<data::LogicSegment> lsegment) | |
202 | { | |
203 | unsigned progress_scale = 0; | |
204 | ||
205 | int aunit_size = 0; | |
206 | int lunit_size = 0; | |
207 | unsigned int lsamples_per_block = INT_MAX; | |
208 | unsigned int asamples_per_block = INT_MAX; | |
209 | ||
210 | if (!asegment_list.empty()) { | |
211 | // We assume all analog channels use the sample unit size | |
212 | aunit_size = asegment_list.front()->unit_size(); | |
213 | asamples_per_block = BlockSize / aunit_size; | |
214 | } | |
215 | if (lsegment) { | |
216 | lunit_size = lsegment->unit_size(); | |
217 | lsamples_per_block = BlockSize / lunit_size; | |
218 | } | |
219 | ||
220 | // Qt needs the progress values to fit inside an int. If they would | |
221 | // not, scale the current and max values down until they do. | |
222 | while ((sample_count_ >> progress_scale) > INT_MAX) | |
223 | progress_scale++; | |
224 | ||
225 | unit_count_ = sample_count_ >> progress_scale; | |
226 | ||
227 | const unsigned int samples_per_block = | |
228 | min(asamples_per_block, lsamples_per_block); | |
229 | ||
230 | while (!interrupt_ && sample_count_) { | |
231 | progress_updated(); | |
232 | ||
233 | const uint64_t packet_len = | |
234 | min((uint64_t)samples_per_block, sample_count_); | |
235 | ||
236 | try { | |
237 | const auto context = session_.device_manager().context(); | |
238 | ||
239 | for (unsigned int i = 0; i < achannel_list.size(); i++) { | |
240 | shared_ptr<sigrok::Channel> achannel = (achannel_list.at(i))->channel(); | |
241 | shared_ptr<data::AnalogSegment> asegment = asegment_list.at(i); | |
242 | ||
243 | const float *adata = | |
244 | asegment->get_samples(start_sample_, start_sample_ + packet_len); | |
245 | ||
246 | auto analog = context->create_analog_packet( | |
247 | vector<shared_ptr<sigrok::Channel> >{achannel}, | |
248 | (float *)adata, packet_len, | |
249 | sigrok::Quantity::VOLTAGE, sigrok::Unit::VOLT, | |
250 | vector<const sigrok::QuantityFlag *>()); | |
251 | const string adata_str = output_->receive(analog); | |
252 | ||
253 | if (output_stream_.is_open()) | |
254 | output_stream_ << adata_str; | |
255 | ||
256 | delete[] adata; | |
257 | } | |
258 | ||
259 | if (lsegment) { | |
260 | const uint8_t* ldata = | |
261 | lsegment->get_samples(start_sample_, start_sample_ + packet_len); | |
262 | ||
263 | const size_t length = packet_len * lunit_size; | |
264 | auto logic = context->create_logic_packet((void*)ldata, length, lunit_size); | |
265 | const string ldata_str = output_->receive(logic); | |
266 | ||
267 | if (output_stream_.is_open()) | |
268 | output_stream_ << ldata_str; | |
269 | ||
270 | delete[] ldata; | |
271 | } | |
272 | } catch (Error error) { | |
273 | error_ = tr("Error while saving: ") + error.what(); | |
274 | break; | |
275 | } | |
276 | ||
277 | sample_count_ -= packet_len; | |
278 | start_sample_ += packet_len; | |
279 | units_stored_ = unit_count_ - (sample_count_ >> progress_scale); | |
280 | } | |
281 | ||
282 | // Zeroing the progress variables indicates completion | |
283 | units_stored_ = unit_count_ = 0; | |
284 | ||
285 | store_successful(); | |
286 | progress_updated(); | |
287 | ||
288 | output_.reset(); | |
289 | output_stream_.close(); | |
290 | } | |
291 | ||
292 | } // namespace pv |