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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #ifdef ENABLE_DECODE
  22 #include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
  23 #endif
  24
  25 #include <stdint.h>
  26 #include <libsigrok/libsigrok.h>
  27
  28 #include <getopt.h>
  29
  30 #include <QtGui/QApplication>
  31 #include <QDebug>
  32
  33 #ifdef ENABLE_SIGNALS
  34 #include "signalhandler.h"
  35 #endif
  36
  37 #include "pv/devicemanager.h"
  38 #include "pv/mainwindow.h"
  39
  40 #include "config.h"
  41
  42 #ifdef _WIN32
  43 // The static qsvg lib is required for SVG graphics/icons (on Windows).
  44 #include <QtPlugin>
  45 Q_IMPORT_PLUGIN(qsvg)
  46 #endif
  47
  48 void usage()
  49 {
  50         fprintf(stdout,
  51                 "Usage:\n"
  52                 "  %s [OPTION…] [FILE] — %s\n"
  53                 "\n"
  54                 "Help Options:\n"
  55                 "  -l, --loglevel                  Set libsigrok/libsigrokdecode loglevel\n"
  56                 "  -V, --version                   Show release version\n"
  57                 "  -h, -?, --help                  Show help option\n"
  58                 "\n", PV_BIN_NAME, PV_DESCRIPTION);
  59 }
  60
  61 int main(int argc, char *argv[])
  62 {
  63         int ret = 0;
  64         struct sr_context *sr_ctx = NULL;
  65         const char *open_file = NULL;
  66
  67         QApplication a(argc, argv);
  68
  69         // Set some application metadata
  70         QApplication::setApplicationVersion(PV_VERSION_STRING);
  71         QApplication::setApplicationName("PulseView");
  72         QApplication::setOrganizationDomain("http://www.sigrok.org");
  73
  74         // Parse arguments
  75         while (1) {
  76                 static const struct option long_options[] = {
  77                         {"loglevel", required_argument, 0, 'l'},
  78                         {"version", no_argument, 0, 'V'},
  79                         {"help", no_argument, 0, 'h'},
  80                         {0, 0, 0, 0}
  81                 };
  82
  83                 const int c = getopt_long(argc, argv,
  84                         "l:Vh?", long_options, NULL);
  85                 if (c == -1)
  86                         break;
  87
  88                 switch (c) {
  89                 case 'l':
  90                 {
  91                         const int loglevel = atoi(optarg);
  92                         sr_log_loglevel_set(loglevel);
  93
  94 #ifdef ENABLE_DECODE
  95                         srd_log_loglevel_set(loglevel);
  96 #endif
  97
  98                         break;
  99                 }
 100
 101                 case 'V':
 102                         // Print version info
 103                         fprintf(stdout, "%s %s\n", PV_TITLE, PV_VERSION_STRING);
 104                         return 0;
 105
 106                 case 'h':
 107                 case '?':
 108                         usage();
 109                         return 0;
 110                 }
 111         }
 112
 113         if (argc - optind > 1) {
 114                 fprintf(stderr, "Only one file can be openened.\n");
 115                 return 1;
 116         } else if (argc - optind == 1)
 117                 open_file = argv[argc - 1];
 118
 119         // Initialise libsigrok
 120         if (sr_init(&sr_ctx) != SR_OK) {
 121                 qDebug() << "ERROR: libsigrok init failed.";
 122                 return 1;
 123         }
 124
 125         do {
 126
 127 #ifdef ENABLE_DECODE
 128                 // Initialise libsigrokdecode
 129                 if (srd_init(NULL) != SRD_OK) {
 130                         qDebug() << "ERROR: libsigrokdecode init failed.";
 131                         break;
 132                 }
 133
 134                 // Load the protocol decoders
 135                 srd_decoder_load_all();
 136 #endif
 137
 138                 try {
 139                         // Create the device manager, initialise the drivers
 140                         pv::DeviceManager device_manager(sr_ctx);
 141
 142                         // Initialise the main window
 143                         pv::MainWindow w(device_manager, open_file);
 144                         w.show();
 145
 146 #ifdef ENABLE_SIGNALS
 147                         if(SignalHandler::prepare_signals()) {
 148                                 SignalHandler *const handler =
 149                                         new SignalHandler(&w);
 150                                 QObject::connect(handler,
 151                                         SIGNAL(int_received()),
 152                                         &w, SLOT(close()));
 153                                 QObject::connect(handler,
 154                                         SIGNAL(term_received()),
 155                                         &w, SLOT(close()));
 156                         } else {
 157                                 qWarning() <<
 158                                         "Could not prepare signal handler.";
 159                         }
 160 #endif
 161
 162                         // Run the application
 163                         ret = a.exec();
 164
 165                 } catch(std::exception e) {
 166                         qDebug() << e.what();
 167                 }
 168
 169 #ifdef ENABLE_DECODE
 170                 // Destroy libsigrokdecode
 171                 srd_exit();
 172 #endif
 173
 174         } while (0);
 175
 176         // Destroy libsigrok
 177         if (sr_ctx)
 178                 sr_exit(sr_ctx);
 179
 180         return ret;
 181 }