sigsession.cpp

   1 /*
   2  * This file is part of the sigrok 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 #include "sigsession.h"
  22
  23 #include "logicdata.h"
  24 #include "logicdatasnapshot.h"
  25
  26 #include <QDebug>
  27
  28 #include <assert.h>
  29
  30 using namespace boost;
  31
  32 // TODO: This should not be necessary
  33 SigSession* SigSession::session = NULL;
  34
  35 SigSession::SigSession()
  36 {
  37         // TODO: This should not be necessary
  38         session = this;
  39 }
  40
  41 SigSession::~SigSession()
  42 {
  43         // TODO: This should not be necessary
  44         session = NULL;
  45 }
  46
  47 void SigSession::loadFile(const std::string &name)
  48 {
  49         if (sr_session_load(name.c_str()) == SR_OK) {
  50                 /* sigrok session file */
  51                 sr_session_datafeed_callback_add(dataFeedInProc);
  52                 sr_session_start();
  53                 sr_session_run();
  54                 sr_session_stop();
  55         }
  56 }
  57
  58 void SigSession::dataFeedIn(const struct sr_dev_inst *sdi,
  59         struct sr_datafeed_packet *packet)
  60 {
  61         assert(sdi);
  62         assert(packet);
  63
  64         switch (packet->type) {
  65         case SR_DF_HEADER:
  66                 break;
  67
  68         case SR_DF_META_LOGIC:
  69                 {
  70                         assert(packet->payload);
  71
  72                         _logic_data.reset(new LogicData(
  73                                 *(sr_datafeed_meta_logic*)packet->payload));
  74
  75                         assert(_logic_data);
  76                         if(!_logic_data)
  77                                 break;
  78
  79                         break;
  80                 }
  81
  82         case SR_DF_LOGIC:
  83
  84                 assert(packet->payload);
  85                 if(!_cur_logic_snapshot)
  86                 {
  87                         // Create a new data snapshot
  88                         _cur_logic_snapshot = shared_ptr<LogicDataSnapshot>(
  89                                 new LogicDataSnapshot(
  90                                 *(sr_datafeed_logic*)packet->payload));
  91                         _logic_data->push_snapshot(_cur_logic_snapshot);
  92                 }
  93                 else
  94                 {
  95                         // Append to the existing data snapshot
  96                         _cur_logic_snapshot->append_payload(
  97                                 *(sr_datafeed_logic*)packet->payload);
  98                 }
  99
 100                 break;
 101
 102         case SR_DF_END:
 103                 _cur_logic_snapshot.reset();
 104                 dataUpdated();
 105                 break;
 106         }
 107 }
 108
 109 void SigSession::dataFeedInProc(const struct sr_dev_inst *sdi,
 110         struct sr_datafeed_packet *packet)
 111 {
 112         assert(session);
 113         session->dataFeedIn(sdi, packet);
 114 }