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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 | #ifdef _WIN32 | |
23 | // Windows: Avoid boost/thread namespace pollution (which includes windows.h). | |
24 | #define NOGDI | |
25 | #define NORESOURCE | |
26 | #endif | |
27 | ||
28 | #include "storesession.hpp" | |
29 | ||
30 | #include <pv/devicemanager.hpp> | |
31 | #include <pv/session.hpp> | |
32 | #include <pv/data/analog.hpp> | |
33 | #include <pv/data/analogsegment.hpp> | |
34 | #include <pv/data/logic.hpp> | |
35 | #include <pv/data/logicsegment.hpp> | |
36 | #include <pv/data/signalbase.hpp> | |
37 | #include <pv/devices/device.hpp> | |
38 | ||
39 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
40 | ||
41 | using std::deque; | |
42 | using std::ios_base; | |
43 | using std::lock_guard; | |
44 | using std::make_pair; | |
45 | using std::map; | |
46 | using std::min; | |
47 | using std::mutex; | |
48 | using std::pair; | |
49 | using std::shared_ptr; | |
50 | using std::string; | |
51 | using std::unordered_set; | |
52 | using std::vector; | |
53 | ||
54 | using Glib::VariantBase; | |
55 | ||
56 | using sigrok::ConfigKey; | |
57 | using sigrok::Error; | |
58 | using sigrok::OutputFormat; | |
59 | using sigrok::OutputFlag; | |
60 | ||
61 | namespace pv { | |
62 | ||
63 | const size_t StoreSession::BlockSize = 10 * 1024 * 1024; | |
64 | ||
65 | StoreSession::StoreSession(const string &file_name, | |
66 | const shared_ptr<OutputFormat> &output_format, | |
67 | const map<string, VariantBase> &options, | |
68 | const pair<uint64_t, uint64_t> sample_range, | |
69 | const Session &session) : | |
70 | file_name_(file_name), | |
71 | output_format_(output_format), | |
72 | options_(options), | |
73 | sample_range_(sample_range), | |
74 | session_(session), | |
75 | interrupt_(false), | |
76 | units_stored_(0), | |
77 | unit_count_(0) | |
78 | { | |
79 | } | |
80 | ||
81 | StoreSession::~StoreSession() | |
82 | { | |
83 | wait(); | |
84 | } | |
85 | ||
86 | pair<int, int> StoreSession::progress() const | |
87 | { | |
88 | return make_pair(units_stored_.load(), unit_count_.load()); | |
89 | } | |
90 | ||
91 | const QString& StoreSession::error() const | |
92 | { | |
93 | lock_guard<mutex> lock(mutex_); | |
94 | return error_; | |
95 | } | |
96 | ||
97 | bool StoreSession::start() | |
98 | { | |
99 | const unordered_set< shared_ptr<data::SignalBase> > sigs(session_.signalbases()); | |
100 | ||
101 | shared_ptr<data::Segment> any_segment; | |
102 | shared_ptr<data::LogicSegment> lsegment; | |
103 | vector< shared_ptr<data::SignalBase> > achannel_list; | |
104 | vector< shared_ptr<data::AnalogSegment> > asegment_list; | |
105 | ||
106 | for (shared_ptr<data::SignalBase> signal : sigs) { | |
107 | if (!signal->enabled()) | |
108 | continue; | |
109 | ||
110 | if (signal->type() == data::SignalBase::LogicChannel) { | |
111 | // All logic channels share the same data segments | |
112 | shared_ptr<data::Logic> ldata = signal->logic_data(); | |
113 | ||
114 | const deque< shared_ptr<data::LogicSegment> > &lsegments = | |
115 | ldata->logic_segments(); | |
116 | ||
117 | if (lsegments.empty()) { | |
118 | error_ = tr("Can't save logic channel without data."); | |
119 | return false; | |
120 | } | |
121 | ||
122 | lsegment = lsegments.front(); | |
123 | any_segment = lsegment; | |
124 | } | |
125 | ||
126 | if (signal->type() == data::SignalBase::AnalogChannel) { | |
127 | // Each analog channel has its own segments | |
128 | shared_ptr<data::Analog> adata = signal->analog_data(); | |
129 | ||
130 | const deque< shared_ptr<data::AnalogSegment> > &asegments = | |
131 | adata->analog_segments(); | |
132 | ||
133 | if (asegments.empty()) { | |
134 | error_ = tr("Can't save analog channel without data."); | |
135 | return false; | |
136 | } | |
137 | ||
138 | asegment_list.push_back(asegments.front()); | |
139 | any_segment = asegments.front(); | |
140 | ||
141 | achannel_list.push_back(signal); | |
142 | } | |
143 | } | |
144 | ||
145 | if (!any_segment) { | |
146 | error_ = tr("No channels enabled."); | |
147 | return false; | |
148 | } | |
149 | ||
150 | // Check whether the user wants to export a certain sample range | |
151 | uint64_t end_sample; | |
152 | ||
153 | if (sample_range_.first == sample_range_.second) { | |
154 | start_sample_ = 0; | |
155 | sample_count_ = any_segment->get_sample_count(); | |
156 | } else { | |
157 | if (sample_range_.first > sample_range_.second) { | |
158 | start_sample_ = sample_range_.second; | |
159 | end_sample = min(sample_range_.first, any_segment->get_sample_count()); | |
160 | sample_count_ = end_sample - start_sample_; | |
161 | } else { | |
162 | start_sample_ = sample_range_.first; | |
163 | end_sample = min(sample_range_.second, any_segment->get_sample_count()); | |
164 | sample_count_ = end_sample - start_sample_; | |
165 | } | |
166 | } | |
167 | ||
168 | // Begin storing | |
169 | try { | |
170 | const auto context = session_.device_manager().context(); | |
171 | auto device = session_.device()->device(); | |
172 | ||
173 | map<string, Glib::VariantBase> options = options_; | |
174 | ||
175 | if (!output_format_->test_flag(OutputFlag::INTERNAL_IO_HANDLING)) | |
176 | output_stream_.open(file_name_, ios_base::binary | | |
177 | ios_base::trunc | ios_base::out); | |
178 | ||
179 | output_ = output_format_->create_output(file_name_, device, options); | |
180 | auto meta = context->create_meta_packet( | |
181 | {{ConfigKey::SAMPLERATE, Glib::Variant<guint64>::create( | |
182 | any_segment->samplerate())}}); | |
183 | output_->receive(meta); | |
184 | } catch (Error error) { | |
185 | error_ = tr("Error while saving: ") + error.what(); | |
186 | return false; | |
187 | } | |
188 | ||
189 | thread_ = std::thread(&StoreSession::store_proc, this, | |
190 | achannel_list, asegment_list, lsegment); | |
191 | return true; | |
192 | } | |
193 | ||
194 | void StoreSession::wait() | |
195 | { | |
196 | if (thread_.joinable()) | |
197 | thread_.join(); | |
198 | } | |
199 | ||
200 | void StoreSession::cancel() | |
201 | { | |
202 | interrupt_ = true; | |
203 | } | |
204 | ||
205 | void StoreSession::store_proc(vector< shared_ptr<data::SignalBase> > achannel_list, | |
206 | vector< shared_ptr<data::AnalogSegment> > asegment_list, | |
207 | shared_ptr<data::LogicSegment> lsegment) | |
208 | { | |
209 | unsigned progress_scale = 0; | |
210 | ||
211 | int aunit_size = 0; | |
212 | int lunit_size = 0; | |
213 | unsigned int lsamples_per_block = INT_MAX; | |
214 | unsigned int asamples_per_block = INT_MAX; | |
215 | ||
216 | if (!asegment_list.empty()) { | |
217 | // We assume all analog channels use the sample unit size | |
218 | aunit_size = asegment_list.front()->unit_size(); | |
219 | asamples_per_block = BlockSize / aunit_size; | |
220 | } | |
221 | if (lsegment) { | |
222 | lunit_size = lsegment->unit_size(); | |
223 | lsamples_per_block = BlockSize / lunit_size; | |
224 | } | |
225 | ||
226 | // Qt needs the progress values to fit inside an int. If they would | |
227 | // not, scale the current and max values down until they do. | |
228 | while ((sample_count_ >> progress_scale) > INT_MAX) | |
229 | progress_scale++; | |
230 | ||
231 | unit_count_ = sample_count_ >> progress_scale; | |
232 | ||
233 | const unsigned int samples_per_block = | |
234 | min(asamples_per_block, lsamples_per_block); | |
235 | ||
236 | while (!interrupt_ && sample_count_) { | |
237 | progress_updated(); | |
238 | ||
239 | const uint64_t packet_len = | |
240 | min((uint64_t)samples_per_block, sample_count_); | |
241 | ||
242 | try { | |
243 | const auto context = session_.device_manager().context(); | |
244 | ||
245 | for (unsigned int i = 0; i < achannel_list.size(); i++) { | |
246 | shared_ptr<sigrok::Channel> achannel = (achannel_list.at(i))->channel(); | |
247 | shared_ptr<data::AnalogSegment> asegment = asegment_list.at(i); | |
248 | ||
249 | const float *adata = | |
250 | asegment->get_samples(start_sample_, start_sample_ + packet_len); | |
251 | ||
252 | auto analog = context->create_analog_packet( | |
253 | vector<shared_ptr<sigrok::Channel> >{achannel}, | |
254 | (float *)adata, packet_len, | |
255 | sigrok::Quantity::VOLTAGE, sigrok::Unit::VOLT, | |
256 | vector<const sigrok::QuantityFlag *>()); | |
257 | const string adata_str = output_->receive(analog); | |
258 | ||
259 | if (output_stream_.is_open()) | |
260 | output_stream_ << adata_str; | |
261 | ||
262 | delete[] adata; | |
263 | } | |
264 | ||
265 | if (lsegment) { | |
266 | const uint8_t* ldata = | |
267 | lsegment->get_samples(start_sample_, start_sample_ + packet_len); | |
268 | ||
269 | const size_t length = packet_len * lunit_size; | |
270 | auto logic = context->create_logic_packet((void*)ldata, length, lunit_size); | |
271 | const string ldata_str = output_->receive(logic); | |
272 | ||
273 | if (output_stream_.is_open()) | |
274 | output_stream_ << ldata_str; | |
275 | ||
276 | delete[] ldata; | |
277 | } | |
278 | } catch (Error error) { | |
279 | error_ = tr("Error while saving: ") + error.what(); | |
280 | break; | |
281 | } | |
282 | ||
283 | sample_count_ -= packet_len; | |
284 | start_sample_ += packet_len; | |
285 | units_stored_ = unit_count_ - (sample_count_ >> progress_scale); | |
286 | } | |
287 | ||
288 | // Zeroing the progress variables indicates completion | |
289 | units_stored_ = unit_count_ = 0; | |
290 | ||
291 | store_successful(); | |
292 | progress_updated(); | |
293 | ||
294 | output_.reset(); | |
295 | output_stream_.close(); | |
296 | } | |
297 | ||
298 | } // pv |