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 #include "pv/session.hpp"
  40 #ifdef ANDROID
  41 #include <libsigrokandroidutils/libsigrokandroidutils.h>
  42 #include "android/assetreader.hpp"
  43 #include "android/loghandler.hpp"
  44 #endif
  45
  46 #include "config.h"
  47
  48 #ifdef _WIN32
  49 #include <QtPlugin>
  50 Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
  51 Q_IMPORT_PLUGIN(QSvgPlugin)
  52 #endif
  53
  54 using std::exception;
  55 using std::shared_ptr;
  56 using std::string;
  57
  58 void usage()
  59 {
  60         fprintf(stdout,
  61                 "Usage:\n"
  62                 "  %s [OPTIONS] [FILE]\n"
  63                 "\n"
  64                 "Help Options:\n"
  65                 "  -h, -?, --help                  Show help option\n"
  66                 "\n"
  67                 "Application Options:\n"
  68                 "  -V, --version                   Show release version\n"
  69                 "  -l, --loglevel                  Set libsigrok/libsigrokdecode loglevel\n"
  70                 "  -d, --driver                    Specify the device driver to use\n"
  71                 "  -i, --input-file                Load input from file\n"
  72                 "  -I, --input-format              Input format\n"
  73                 "  -c, --clean                     Don't restore previous sessions on startup\n"
  74                 "\n", PV_BIN_NAME);
  75 }
  76
  77 int main(int argc, char *argv[])
  78 {
  79         int ret = 0;
  80         shared_ptr<sigrok::Context> context;
  81         string open_file, open_file_format, driver;
  82         bool restore_sessions = true;
  83
  84         Application a(argc, argv);
  85
  86 #ifdef ANDROID
  87         srau_init_environment();
  88         pv::AndroidLogHandler::install_callbacks();
  89         pv::AndroidAssetReader asset_reader;
  90 #endif
  91
  92         // Parse arguments
  93         while (true) {
  94                 static const struct option long_options[] = {
  95                         {"help", no_argument, nullptr, 'h'},
  96                         {"version", no_argument, nullptr, 'V'},
  97                         {"loglevel", required_argument, nullptr, 'l'},
  98                         {"driver", required_argument, nullptr, 'd'},
  99                         {"input-file", required_argument, nullptr, 'i'},
 100                         {"input-format", required_argument, nullptr, 'I'},
 101                         {"clean", no_argument, nullptr, 'c'},
 102                         {nullptr, 0, nullptr, 0}
 103                 };
 104
 105                 const int c = getopt_long(argc, argv,
 106                         "l:Vhc?d:i:I:", long_options, nullptr);
 107                 if (c == -1)
 108                         break;
 109
 110                 switch (c) {
 111                 case 'h':
 112                 case '?':
 113                         usage();
 114                         return 0;
 115
 116                 case 'V':
 117                         // Print version info
 118                         fprintf(stdout, "%s %s\n", PV_TITLE, PV_VERSION_STRING);
 119                         return 0;
 120
 121                 case 'l':
 122                 {
 123                         const int loglevel = atoi(optarg);
 124                         if (loglevel < 0 || loglevel > 5) {
 125                                 qDebug() << "ERROR: invalid log level spec.";
 126                                 break;
 127                         }
 128                         context->set_log_level(sigrok::LogLevel::get(loglevel));
 129
 130 #ifdef ENABLE_DECODE
 131                         srd_log_loglevel_set(loglevel);
 132 #endif
 133
 134                         if (loglevel >= 5) {
 135                                 const QSettings settings;
 136                                 qDebug() << "Settings:" << settings.fileName()
 137                                         << "format" << settings.format();
 138                         }
 139                         break;
 140                 }
 141
 142                 case 'd':
 143                         driver = optarg;
 144                         break;
 145
 146                 case 'i':
 147                         open_file = optarg;
 148                         break;
 149
 150                 case 'I':
 151                         open_file_format = optarg;
 152                         break;
 153
 154                 case 'c':
 155                         restore_sessions = false;
 156                         break;
 157                 }
 158         }
 159
 160         if (argc - optind > 1) {
 161                 fprintf(stderr, "Only one file can be opened.\n");
 162                 return 1;
 163         }
 164
 165         if (argc - optind == 1)
 166                 open_file = argv[argc - 1];
 167
 168         // Initialise libsigrok
 169         context = sigrok::Context::create();
 170         pv::Session::sr_context = context;
 171
 172 #ifdef ANDROID
 173         context->set_resource_reader(&asset_reader);
 174 #endif
 175         do {
 176
 177 #ifdef ENABLE_DECODE
 178                 // Initialise libsigrokdecode
 179                 if (srd_init(nullptr) != SRD_OK) {
 180                         qDebug() << "ERROR: libsigrokdecode init failed.";
 181                         break;
 182                 }
 183
 184                 // Load the protocol decoders
 185                 srd_decoder_load_all();
 186 #endif
 187
 188                 try {
 189                         // Create the device manager, initialise the drivers
 190                         pv::DeviceManager device_manager(context, driver);
 191
 192                         // Initialise the main window
 193                         pv::MainWindow w(device_manager);
 194                         w.show();
 195
 196                         if (restore_sessions)
 197                                 w.restore_sessions();
 198
 199                         if (!open_file.empty())
 200                                 w.add_session_with_file(open_file, open_file_format);
 201                         else
 202                                 w.add_default_session();
 203
 204 #ifdef ENABLE_SIGNALS
 205                         if (SignalHandler::prepare_signals()) {
 206                                 SignalHandler *const handler =
 207                                         new SignalHandler(&w);
 208                                 QObject::connect(handler,
 209                                         SIGNAL(int_received()),
 210                                         &w, SLOT(close()));
 211                                 QObject::connect(handler,
 212                                         SIGNAL(term_received()),
 213                                         &w, SLOT(close()));
 214                         } else {
 215                                 qWarning() <<
 216                                         "Could not prepare signal handler.";
 217                         }
 218 #endif
 219
 220                         // Run the application
 221                         ret = a.exec();
 222
 223                 } catch (exception e) {
 224                         qDebug() << e.what();
 225                 }
 226
 227 #ifdef ENABLE_DECODE
 228                 // Destroy libsigrokdecode
 229                 srd_exit();
 230 #endif
 231
 232         } while (false);
 233
 234         return ret;
 235 }