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 "wx/static_text.h"
  24 #include "lib/util.h"
  25 #include "lib/encoded_log_entry.h"
  26 #include "lib/encode_server.h"
  27 #include "lib/config.h"
  28 #include "lib/log.h"
  29 #include "lib/signaller.h"
  30 #include "lib/cross.h"
  31 #include "lib/dcpomatic_log.h"
  32 #include <wx/taskbar.h>
  33 #include <wx/splash.h>
  34 #include <wx/icon.h>
  35 #include <boost/thread.hpp>
  36 #include <boost/foreach.hpp>
  37 #include <boost/optional.hpp>
  38 #include <iostream>
  39
  40 using std::cout;
  41 using std::string;
  42 using std::exception;
  43 using std::list;
  44 using std::fixed;
  45 using std::setprecision;
  46 using boost::shared_ptr;
  47 using boost::thread;
  48 using boost::bind;
  49 using boost::optional;
  50 using boost::dynamic_pointer_cast;
  51
  52 enum {
  53         ID_status = 1,
  54         ID_quit,
  55         ID_timer
  56 };
  57
  58 static unsigned int const log_lines = 32;
  59
  60 class ServerLog : public Log, public Signaller
  61 {
  62 public:
  63         ServerLog ()
  64                 : _fps (0)
  65         {}
  66
  67         string get () const {
  68                 string a;
  69                 BOOST_FOREACH (string const & i, _log) {
  70                         a += i + "\n";
  71                 }
  72                 return a;
  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 #ifdef DCPOMATIC_OSX
 144                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER | wxSTAY_ON_TOP
 145 #else
 146                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER
 147 #endif
 148                         )
 149         {
 150                 wxFlexGridSizer* state_sizer = new wxFlexGridSizer (2, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 151
 152                 add_label_to_sizer (state_sizer, this, _("Frames per second"), true);
 153                 _fps = new StaticText (this, wxT(""));
 154                 state_sizer->Add (_fps);
 155
 156                 wxFlexGridSizer* log_sizer = new wxFlexGridSizer (1, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 157                 log_sizer->AddGrowableCol (0, 1);
 158
 159                 wxClientDC dc (this);
 160                 wxSize size = dc.GetTextExtent (wxT ("This is the length of the file label it should be quite long"));
 161                 int const height = (size.GetHeight() + 2) * log_lines;
 162                 SetSize (700, height + DCPOMATIC_SIZER_GAP * 2);
 163
 164                 _text = new wxTextCtrl (
 165                         this, wxID_ANY, std_to_wx (server_log->get()), wxDefaultPosition, wxSize (-1, height),
 166                         wxTE_READONLY | wxTE_MULTILINE
 167                         );
 168
 169                 log_sizer->Add (_text, 1, wxEXPAND);
 170
 171                 wxBoxSizer* overall_sizer = new wxBoxSizer (wxVERTICAL);
 172                 overall_sizer->Add (state_sizer, 0, wxALL, DCPOMATIC_SIZER_GAP);
 173                 overall_sizer->Add (log_sizer, 1, wxEXPAND | wxALL, DCPOMATIC_SIZER_GAP);
 174                 SetSizer (overall_sizer);
 175                 overall_sizer->Layout ();
 176
 177                 Bind (wxEVT_TIMER, boost::bind (&StatusDialog::update_state, this));
 178                 _timer.reset (new wxTimer (this));
 179                 _timer->Start (1000);
 180
 181                 server_log->Appended.connect (bind (&StatusDialog::appended, this, _1));
 182                 server_log->Removed.connect (bind (&StatusDialog::removed, this, _1));
 183         }
 184
 185 private:
 186         void appended (string s)
 187         {
 188                 (*_text) << s << "\n";
 189         }
 190
 191         void removed (int n)
 192         {
 193                 _text->Remove (0, n + 1);
 194         }
 195
 196         void update_state ()
 197         {
 198                 _fps->SetLabel (wxString::Format ("%.1f", server_log->fps()));
 199         }
 200
 201         wxTextCtrl* _text;
 202         wxStaticText* _fps;
 203         boost::shared_ptr<wxTimer> _timer;
 204 };
 205
 206 class TaskBarIcon : public wxTaskBarIcon
 207 {
 208 public:
 209         TaskBarIcon ()
 210                 : _status (0)
 211         {
 212 #ifdef DCPOMATIC_WINDOWS
 213                 wxIcon icon (std_to_wx ("id"));
 214 #else
 215                 wxBitmap bitmap (wxString::Format (wxT ("%s/dcpomatic_small.png"), std_to_wx (shared_path().string())), wxBITMAP_TYPE_PNG);
 216                 wxIcon icon;
 217                 icon.CopyFromBitmap (bitmap);
 218 #endif
 219
 220                 SetIcon (icon, std_to_wx ("DCP-o-matic Encode Server"));
 221
 222                 Bind (wxEVT_MENU, boost::bind (&TaskBarIcon::status, this), ID_status);
 223                 Bind (wxEVT_MENU, boost::bind (&TaskBarIcon::quit, this), ID_quit);
 224         }
 225
 226         wxMenu* CreatePopupMenu ()
 227         {
 228                 wxMenu* menu = new wxMenu;
 229                 menu->Append (ID_status, std_to_wx ("Status..."));
 230                 menu->Append (ID_quit, std_to_wx ("Quit"));
 231                 return menu;
 232         }
 233
 234 private:
 235         void status ()
 236         {
 237                 if (!_status) {
 238                         _status = new StatusDialog ();
 239                 }
 240                 _status->Show ();
 241         }
 242
 243         void quit ()
 244         {
 245                 wxTheApp->ExitMainLoop ();
 246         }
 247
 248         StatusDialog* _status;
 249 };
 250
 251 class App : public wxApp, public ExceptionStore
 252 {
 253 public:
 254         App ()
 255                 : wxApp ()
 256                 , _icon (0)
 257         {}
 258
 259 private:
 260
 261         bool OnInit ()
 262         {
 263                 if (!wxApp::OnInit ()) {
 264                         return false;
 265                 }
 266
 267                 wxInitAllImageHandlers ();
 268
 269                 server_log.reset (new ServerLog);
 270                 server_log->set_types (LogEntry::TYPE_GENERAL | LogEntry::TYPE_WARNING | LogEntry::TYPE_ERROR);
 271                 dcpomatic_log = server_log;
 272
 273                 Config::FailedToLoad.connect (boost::bind (&App::config_failed_to_load, this));
 274                 Config::Warning.connect (boost::bind (&App::config_warning, this, _1));
 275
 276                 wxSplashScreen* splash = maybe_show_splash ();
 277
 278                 dcpomatic_setup_path_encoding ();
 279                 dcpomatic_setup_i18n ();
 280                 dcpomatic_setup ();
 281                 Config::drop ();
 282
 283                 signal_manager = new wxSignalManager (this);
 284                 Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
 285
 286                 /* Bad things happen (on Linux at least) if the config is reloaded by main_thread;
 287                    it seems like there's a race which results in the locked_sstream mutex being
 288                    locked before it is initialised.  Calling Config::instance() here loads the config
 289                    again in this thread, which seems to work around the problem.
 290                 */
 291                 Config::instance();
 292
 293 #ifdef DCPOMATIC_LINUX
 294                 StatusDialog* d = new StatusDialog ();
 295                 d->Show ();
 296 #else
 297                 _icon = new TaskBarIcon;
 298 #endif
 299                 _thread = thread (bind (&App::main_thread, this));
 300
 301                 Bind (wxEVT_TIMER, boost::bind (&App::check, this));
 302                 _timer.reset (new wxTimer (this));
 303                 _timer->Start (1000);
 304
 305                 if (splash) {
 306                         splash->Destroy ();
 307                 }
 308
 309                 SetExitOnFrameDelete (false);
 310
 311                 return true;
 312         }
 313
 314         int OnExit ()
 315         {
 316                 delete _icon;
 317                 return wxApp::OnExit ();
 318         }
 319
 320         void main_thread ()
 321         try {
 322                 EncodeServer server (false, Config::instance()->server_encoding_threads());
 323                 server.run ();
 324         } catch (...) {
 325                 store_current ();
 326         }
 327
 328         void check ()
 329         {
 330                 try {
 331                         rethrow ();
 332                 } catch (exception& e) {
 333                         error_dialog (0, std_to_wx (e.what ()));
 334                         wxTheApp->ExitMainLoop ();
 335                 } catch (...) {
 336                         error_dialog (0, _("An unknown error has occurred with the DCP-o-matic server."));
 337                         wxTheApp->ExitMainLoop ();
 338                 }
 339         }
 340
 341         void idle ()
 342         {
 343                 signal_manager->ui_idle ();
 344         }
 345
 346         void config_failed_to_load ()
 347         {
 348                 message_dialog (0, _("The existing configuration failed to load.  Default values will be used instead.  These may take a short time to create."));
 349         }
 350
 351         void config_warning (string m)
 352         {
 353                 message_dialog (0, std_to_wx (m));
 354         }
 355
 356         boost::thread _thread;
 357         TaskBarIcon* _icon;
 358         shared_ptr<wxTimer> _timer;
 359 };
 360
 361 IMPLEMENT_APP (App)