src/tools/dcpomatic_server.cc

   1 /*
   2     Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic 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     DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21 #include "wx/wx_util.h"
  22 #include "wx/wx_signal_manager.h"
  23 #include "lib/util.h"
  24 #include "lib/encoded_log_entry.h"
  25 #include "lib/encode_server.h"
  26 #include "lib/config.h"
  27 #include "lib/log.h"
  28 #include "lib/raw_convert.h"
  29 #include "lib/signaller.h"
  30 #include "lib/cross.h"
  31 #include <wx/taskbar.h>
  32 #include <wx/icon.h>
  33 #include <boost/thread.hpp>
  34 #include <boost/foreach.hpp>
  35 #include <boost/optional.hpp>
  36 #include <iostream>
  37
  38 using std::cout;
  39 using std::string;
  40 using std::exception;
  41 using std::list;
  42 using std::fixed;
  43 using std::setprecision;
  44 using boost::shared_ptr;
  45 using boost::thread;
  46 using boost::bind;
  47 using boost::optional;
  48 using boost::dynamic_pointer_cast;
  49
  50 enum {
  51         ID_status = 1,
  52         ID_quit,
  53         ID_timer
  54 };
  55
  56 static unsigned int const log_lines = 32;
  57
  58 class ServerLog : public Log, public Signaller
  59 {
  60 public:
  61
  62         string get () const {
  63                 string a;
  64                 BOOST_FOREACH (string const & i, _log) {
  65                         a += i + "\n";
  66                 }
  67                 return a;
  68         }
  69
  70         string head_and_tail (int) const {
  71                 /* Not necessary */
  72                 return "";
  73         }
  74
  75         float fps () const {
  76                 boost::mutex::scoped_lock lm (_state_mutex);
  77                 return _fps;
  78         }
  79
  80         boost::signals2::signal<void(string)> Appended;
  81         boost::signals2::signal<void(int)> Removed;
  82
  83 private:
  84         void do_log (shared_ptr<const LogEntry> entry)
  85         {
  86                 time_t const s = entry->seconds ();
  87                 struct tm* local = localtime (&s);
  88                 if (
  89                         !_last_time ||
  90                         local->tm_yday != _last_time->tm_yday ||
  91                         local->tm_year != _last_time->tm_year ||
  92                         local->tm_hour != _last_time->tm_hour ||
  93                         local->tm_min != _last_time->tm_min
  94                         ) {
  95                         char buffer[64];
  96                         strftime (buffer, 64, "%c", local);
  97                         append (buffer);
  98                 }
  99
 100                 append (entry->message ());
 101                 if (_log.size() > log_lines) {
 102                         emit (boost::bind (boost::ref (Removed), _log.front().length()));
 103                         _log.pop_front ();
 104                 }
 105                 _last_time = *local;
 106
 107                 shared_ptr<const EncodedLogEntry> encoded = dynamic_pointer_cast<const EncodedLogEntry> (entry);
 108                 if (encoded) {
 109                         _history.push_back (encoded->seconds ());
 110                         if (_history.size() > 48) {
 111                                 _history.pop_front ();
 112                         }
 113                         if (_history.size() > 2) {
 114                                 boost::mutex::scoped_lock lm (_state_mutex);
 115                                 _fps = _history.size() / (_history.back() - _history.front());
 116                         }
 117                 }
 118         }
 119
 120         void append (string s)
 121         {
 122                 _log.push_back (s);
 123                 emit (boost::bind (boost::ref (Appended), s));
 124         }
 125
 126         list<string> _log;
 127         optional<struct tm> _last_time;
 128         std::list<double> _history;
 129
 130         mutable boost::mutex _state_mutex;
 131         float _fps;
 132 };
 133
 134 static shared_ptr<ServerLog> server_log;
 135
 136 class StatusDialog : public wxDialog
 137 {
 138 public:
 139         StatusDialog ()
 140                 : wxDialog (
 141                         0, wxID_ANY, _("DCP-o-matic Encode Server"),
 142                         wxDefaultPosition, wxDefaultSize,
 143                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER
 144                         )
 145         {
 146                 wxFlexGridSizer* state_sizer = new wxFlexGridSizer (2, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 147
 148                 add_label_to_sizer (state_sizer, this, _("Frames per second"), true);
 149                 _fps = new wxStaticText (this, wxID_ANY, wxT(""));
 150                 state_sizer->Add (_fps);
 151
 152                 wxFlexGridSizer* log_sizer = new wxFlexGridSizer (1, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 153                 log_sizer->AddGrowableCol (0, 1);
 154
 155                 wxClientDC dc (this);
 156                 wxSize size = dc.GetTextExtent (wxT ("This is the length of the file label it should be quite long"));
 157                 int const height = (size.GetHeight() + 2) * log_lines;
 158                 SetSize (700, height + DCPOMATIC_SIZER_GAP * 2);
 159
 160                 _text = new wxTextCtrl (
 161                         this, wxID_ANY, std_to_wx (server_log->get()), wxDefaultPosition, wxSize (-1, height),
 162                         wxTE_READONLY | wxTE_MULTILINE
 163                         );
 164
 165                 log_sizer->Add (_text, 1, wxEXPAND);
 166
 167                 wxBoxSizer* overall_sizer = new wxBoxSizer (wxVERTICAL);
 168                 overall_sizer->Add (state_sizer, 0, wxALL, DCPOMATIC_SIZER_GAP);
 169                 overall_sizer->Add (log_sizer, 1, wxEXPAND | wxALL, DCPOMATIC_SIZER_GAP);
 170                 SetSizer (overall_sizer);
 171                 overall_sizer->Layout ();
 172
 173                 Bind (wxEVT_TIMER, boost::bind (&StatusDialog::update_state, this));
 174                 _timer.reset (new wxTimer (this));
 175                 _timer->Start (1000);
 176
 177                 server_log->Appended.connect (bind (&StatusDialog::appended, this, _1));
 178                 server_log->Removed.connect (bind (&StatusDialog::removed, this, _1));
 179         }
 180
 181 private:
 182         void appended (string s)
 183         {
 184                 (*_text) << s << "\n";
 185         }
 186
 187         void removed (int n)
 188         {
 189                 _text->Remove (0, n + 1);
 190         }
 191
 192         void update_state ()
 193         {
 194                 SafeStringStream s;
 195                 s << fixed << setprecision(1) << server_log->fps ();
 196                 _fps->SetLabel (std_to_wx (s.str()));
 197         }
 198
 199         wxTextCtrl* _text;
 200         wxStaticText* _fps;
 201         boost::shared_ptr<wxTimer> _timer;
 202 };
 203
 204 class TaskBarIcon : public wxTaskBarIcon
 205 {
 206 public:
 207         TaskBarIcon ()
 208                 : _status (0)
 209         {
 210 #ifdef DCPOMATIC_WINDOWS
 211                 wxIcon icon (std_to_wx ("taskbar_icon"));
 212 #else
 213                 wxInitAllImageHandlers();
 214                 wxBitmap bitmap (wxString::Format (wxT ("%s/dcpomatic2_server_small.png"), std_to_wx (shared_path().string())), wxBITMAP_TYPE_PNG);
 215                 wxIcon icon;
 216                 icon.CopyFromBitmap (bitmap);
 217 #endif
 218
 219                 SetIcon (icon, std_to_wx ("DCP-o-matic Encode Server"));
 220
 221                 Bind (wxEVT_COMMAND_MENU_SELECTED, boost::bind (&TaskBarIcon::status, this), ID_status);
 222                 Bind (wxEVT_COMMAND_MENU_SELECTED, boost::bind (&TaskBarIcon::quit, this), ID_quit);
 223         }
 224
 225         wxMenu* CreatePopupMenu ()
 226         {
 227                 wxMenu* menu = new wxMenu;
 228                 menu->Append (ID_status, std_to_wx ("Status..."));
 229                 menu->Append (ID_quit, std_to_wx ("Quit"));
 230                 return menu;
 231         }
 232
 233 private:
 234         void status ()
 235         {
 236                 if (!_status) {
 237                         _status = new StatusDialog ();
 238                 }
 239                 _status->Show ();
 240         }
 241
 242         void quit ()
 243         {
 244                 wxTheApp->ExitMainLoop ();
 245         }
 246
 247         StatusDialog* _status;
 248 };
 249
 250 class App : public wxApp, public ExceptionStore
 251 {
 252 public:
 253         App ()
 254                 : wxApp ()
 255                 , _thread (0)
 256                 , _icon (0)
 257         {}
 258
 259 private:
 260
 261         bool OnInit ()
 262         {
 263                 if (!wxApp::OnInit ()) {
 264                         return false;
 265                 }
 266
 267                 server_log.reset (new ServerLog);
 268
 269                 dcpomatic_setup_path_encoding ();
 270                 dcpomatic_setup_i18n ();
 271                 dcpomatic_setup ();
 272                 Config::drop ();
 273
 274                 signal_manager = new wxSignalManager (this);
 275                 Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
 276
 277                 _icon = new TaskBarIcon;
 278                 _thread = new thread (bind (&App::main_thread, this));
 279
 280                 Bind (wxEVT_TIMER, boost::bind (&App::check, this));
 281                 _timer.reset (new wxTimer (this));
 282                 _timer->Start (1000);
 283
 284                 return true;
 285         }
 286
 287         int OnExit ()
 288         {
 289                 delete _icon;
 290                 return wxApp::OnExit ();
 291         }
 292
 293         void main_thread ()
 294         try {
 295                 EncodeServer server (server_log, false, Config::instance()->num_local_encoding_threads());
 296                 server.run ();
 297         } catch (...) {
 298                 store_current ();
 299         }
 300
 301         void check ()
 302         {
 303                 try {
 304                         rethrow ();
 305                 } catch (exception& e) {
 306                         error_dialog (0, std_to_wx (e.what ()));
 307                         wxTheApp->ExitMainLoop ();
 308                 } catch (...) {
 309                         error_dialog (0, _("An unknown error has occurred with the DCP-o-matic server."));
 310                         wxTheApp->ExitMainLoop ();
 311                 }
 312         }
 313
 314         void idle ()
 315         {
 316                 signal_manager->ui_idle ();
 317         }
 318
 319         boost::thread* _thread;
 320         TaskBarIcon* _icon;
 321         shared_ptr<wxTimer> _timer;
 322 };
 323
 324 IMPLEMENT_APP (App)