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