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 [OPTIONS] [FILE]\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                 "  -d, --driver                    Specify the device driver to use\n"
  70                 "  -i, --input-file                Load input from file\n"
  71                 "  -I, --input-format              Input format\n"
  72                 "  -c, --clean                     Don't restore previous sessions on startup\n"
  73                 "\n", PV_BIN_NAME);
  74 }
  75
  76 int main(int argc, char *argv[])
  77 {
  78         int ret = 0;
  79         shared_ptr<sigrok::Context> context;
  80         string open_file, open_file_format, driver;
  81         bool restore_sessions = true;
  82
  83         Application a(argc, argv);
  84
  85 #ifdef ANDROID
  86         srau_init_environment();
  87         pv::AndroidLogHandler::install_callbacks();
  88         pv::AndroidAssetReader asset_reader;
  89 #endif
  90
  91         // Parse arguments
  92         while (true) {
  93                 static const struct option long_options[] = {
  94                         {"help", no_argument, nullptr, 'h'},
  95                         {"version", no_argument, nullptr, 'V'},
  96                         {"loglevel", required_argument, nullptr, 'l'},
  97                         {"driver", required_argument, nullptr, 'd'},
  98                         {"input-file", required_argument, nullptr, 'i'},
  99                         {"input-format", required_argument, nullptr, 'I'},
 100                         {"clean", no_argument, nullptr, 'c'},
 101                         {nullptr, 0, nullptr, 0}
 102                 };
 103
 104                 const int c = getopt_long(argc, argv,
 105                         "l:Vhc?d:i:I:", long_options, nullptr);
 106                 if (c == -1)
 107                         break;
 108
 109                 switch (c) {
 110                 case 'h':
 111                 case '?':
 112                         usage();
 113                         return 0;
 114
 115                 case 'V':
 116                         // Print version info
 117                         fprintf(stdout, "%s %s\n", PV_TITLE, PV_VERSION_STRING);
 118                         return 0;
 119
 120                 case 'l':
 121                 {
 122                         const int loglevel = atoi(optarg);
 123                         context->set_log_level(sigrok::LogLevel::get(loglevel));
 124
 125 #ifdef ENABLE_DECODE
 126                         srd_log_loglevel_set(loglevel);
 127 #endif
 128
 129                         if (loglevel >= 5) {
 130                                 const QSettings settings;
 131                                 qDebug() << "Settings:" << settings.fileName()
 132                                         << "format" << settings.format();
 133                         }
 134                         break;
 135                 }
 136
 137                 case 'd':
 138                         driver = optarg;
 139                         break;
 140
 141                 case 'i':
 142                         open_file = optarg;
 143                         break;
 144
 145                 case 'I':
 146                         open_file_format = optarg;
 147                         break;
 148
 149                 case 'c':
 150                         restore_sessions = false;
 151                         break;
 152                 }
 153         }
 154
 155         if (argc - optind > 1) {
 156                 fprintf(stderr, "Only one file can be opened.\n");
 157                 return 1;
 158         }
 159
 160         if (argc - optind == 1)
 161                 open_file = argv[argc - 1];
 162
 163         // Initialise libsigrok
 164         context = sigrok::Context::create();
 165 #ifdef ANDROID
 166         context->set_resource_reader(&asset_reader);
 167 #endif
 168         do {
 169
 170 #ifdef ENABLE_DECODE
 171                 // Initialise libsigrokdecode
 172                 if (srd_init(nullptr) != SRD_OK) {
 173                         qDebug() << "ERROR: libsigrokdecode init failed.";
 174                         break;
 175                 }
 176
 177                 // Load the protocol decoders
 178                 srd_decoder_load_all();
 179 #endif
 180
 181                 try {
 182                         // Create the device manager, initialise the drivers
 183                         pv::DeviceManager device_manager(context, driver);
 184
 185                         // Initialise the main window
 186                         pv::MainWindow w(device_manager);
 187                         w.show();
 188
 189                         if (restore_sessions)
 190                                 w.restore_sessions();
 191
 192                         if (!open_file.empty())
 193                                 w.add_session_with_file(open_file, open_file_format);
 194                         else
 195                                 w.add_default_session();
 196
 197 #ifdef ENABLE_SIGNALS
 198                         if (SignalHandler::prepare_signals()) {
 199                                 SignalHandler *const handler =
 200                                         new SignalHandler(&w);
 201                                 QObject::connect(handler,
 202                                         SIGNAL(int_received()),
 203                                         &w, SLOT(close()));
 204                                 QObject::connect(handler,
 205                                         SIGNAL(term_received()),
 206                                         &w, SLOT(close()));
 207                         } else {
 208                                 qWarning() <<
 209                                         "Could not prepare signal handler.";
 210                         }
 211 #endif
 212
 213                         // Run the application
 214                         ret = a.exec();
 215
 216                 } catch (exception e) {
 217                         qDebug() << e.what();
 218                 }
 219
 220 #ifdef ENABLE_DECODE
 221                 // Destroy libsigrokdecode
 222                 srd_exit();
 223 #endif
 224
 225         } while (false);
 226
 227         return ret;
 228 }