main.cpp

   1 /*
   2  * This file is part of the PulseView project.
   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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifdef ENABLE_DECODE
  21 #include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
  22 #endif
  23
  24 #include <cstdint>
  25 #include <libsigrokcxx/libsigrokcxx.hpp>
  26
  27 #include <getopt.h>
  28
  29 #include <QDebug>
  30 #include <QSettings>
  31
  32 #ifdef ENABLE_SIGNALS
  33 #include "signalhandler.hpp"
  34 #endif
  35
  36 #include "pv/application.hpp"
  37 #include "pv/devicemanager.hpp"
  38 #include "pv/mainwindow.hpp"
  39 #ifdef ANDROID
  40 #include <libsigrokandroidutils/libsigrokandroidutils.h>
  41 #include "android/assetreader.hpp"
  42 #include "android/loghandler.hpp"
  43 #endif
  44
  45 #include "config.h"
  46
  47 #ifdef _WIN32
  48 #include <QtPlugin>
  49 Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
  50 Q_IMPORT_PLUGIN(QSvgPlugin)
  51 #endif
  52
  53 using std::exception;
  54 using std::shared_ptr;
  55 using std::string;
  56
  57 void usage()
  58 {
  59         fprintf(stdout,
  60                 "Usage:\n"
  61                 "  %s [OPTION…] — %s\n"
  62                 "\n"
  63                 "Help Options:\n"
  64                 "  -h, -?, --help                  Show help option\n"
  65                 "\n"
  66                 "Application Options:\n"
  67                 "  -V, --version                   Show release version\n"
  68                 "  -l, --loglevel                  Set libsigrok/libsigrokdecode loglevel\n"
  69                 "  -i, --input-file                Load input from file\n"
  70                 "  -I, --input-format              Input format\n"
  71                 "\n", PV_BIN_NAME, PV_DESCRIPTION);
  72 }
  73
  74 int main(int argc, char *argv[])
  75 {
  76         int ret = 0;
  77         shared_ptr<sigrok::Context> context;
  78         string open_file, open_file_format;
  79
  80         Application a(argc, argv);
  81
  82 #ifdef ANDROID
  83         srau_init_environment();
  84         pv::AndroidLogHandler::install_callbacks();
  85         pv::AndroidAssetReader asset_reader;
  86 #endif
  87
  88         // Parse arguments
  89         while (true) {
  90                 static const struct option long_options[] = {
  91                         {"help", no_argument, nullptr, 'h'},
  92                         {"version", no_argument, nullptr, 'V'},
  93                         {"loglevel", required_argument, nullptr, 'l'},
  94                         {"input-file", required_argument, nullptr, 'i'},
  95                         {"input-format", required_argument, nullptr, 'I'},
  96                         {nullptr, 0, nullptr, 0}
  97                 };
  98
  99                 const int c = getopt_long(argc, argv,
 100                         "l:Vh?i:I:", long_options, nullptr);
 101                 if (c == -1)
 102                         break;
 103
 104                 switch (c) {
 105                 case 'h':
 106                 case '?':
 107                         usage();
 108                         return 0;
 109
 110                 case 'V':
 111                         // Print version info
 112                         fprintf(stdout, "%s %s\n", PV_TITLE, PV_VERSION_STRING);
 113                         return 0;
 114
 115                 case 'l':
 116                 {
 117                         const int loglevel = atoi(optarg);
 118                         context->set_log_level(sigrok::LogLevel::get(loglevel));
 119
 120 #ifdef ENABLE_DECODE
 121                         srd_log_loglevel_set(loglevel);
 122 #endif
 123
 124                         if (loglevel >= 5) {
 125                                 const QSettings settings;
 126                                 qDebug() << "Settings:" << settings.fileName()
 127                                         << "format" << settings.format();
 128                         }
 129                         break;
 130                 }
 131
 132                 case 'i':
 133                         open_file = optarg;
 134                         break;
 135
 136                 case 'I':
 137                         open_file_format = optarg;
 138                         break;
 139                 }
 140         }
 141
 142         if (argc - optind > 1) {
 143                 fprintf(stderr, "Only one file can be opened.\n");
 144                 return 1;
 145         }
 146
 147         if (argc - optind == 1)
 148                 open_file = argv[argc - 1];
 149
 150         // Initialise libsigrok
 151         context = sigrok::Context::create();
 152 #ifdef ANDROID
 153         context->set_resource_reader(&asset_reader);
 154 #endif
 155         do {
 156
 157 #ifdef ENABLE_DECODE
 158                 // Initialise libsigrokdecode
 159                 if (srd_init(nullptr) != SRD_OK) {
 160                         qDebug() << "ERROR: libsigrokdecode init failed.";
 161                         break;
 162                 }
 163
 164                 // Load the protocol decoders
 165                 srd_decoder_load_all();
 166 #endif
 167
 168                 try {
 169                         // Create the device manager, initialise the drivers
 170                         pv::DeviceManager device_manager(context);
 171
 172                         // Initialise the main window
 173                         pv::MainWindow w(device_manager,
 174                                 open_file, open_file_format);
 175                         w.show();
 176
 177 #ifdef ENABLE_SIGNALS
 178                         if (SignalHandler::prepare_signals()) {
 179                                 SignalHandler *const handler =
 180                                         new SignalHandler(&w);
 181                                 QObject::connect(handler,
 182                                         SIGNAL(int_received()),
 183                                         &w, SLOT(close()));
 184                                 QObject::connect(handler,
 185                                         SIGNAL(term_received()),
 186                                         &w, SLOT(close()));
 187                         } else {
 188                                 qWarning() <<
 189                                         "Could not prepare signal handler.";
 190                         }
 191 #endif
 192
 193                         // Run the application
 194                         ret = a.exec();
 195
 196                 } catch (exception e) {
 197                         qDebug() << e.what();
 198                 }
 199
 200 #ifdef ENABLE_DECODE
 201                 // Destroy libsigrokdecode
 202                 srd_exit();
 203 #endif
 204
 205         } while (false);
 206
 207         return ret;
 208 }