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/signaller.h"
  29 #include "lib/cross.h"
  30 #include "lib/dcpomatic_log.h"
  31 #include <wx/taskbar.h>
  32 #include <wx/splash.h>
  33 #include <wx/icon.h>
  34 #include <boost/thread.hpp>
  35 #include <boost/foreach.hpp>
  36 #include <boost/optional.hpp>
  37 #include <iostream>
  38
  39 using std::cout;
  40 using std::string;
  41 using std::exception;
  42 using std::list;
  43 using std::fixed;
  44 using std::setprecision;
  45 using boost::shared_ptr;
  46 using boost::thread;
  47 using boost::bind;
  48 using boost::optional;
  49 using boost::dynamic_pointer_cast;
  50
  51 enum {
  52         ID_status = 1,
  53         ID_quit,
  54         ID_timer
  55 };
  56
  57 static unsigned int const log_lines = 32;
  58
  59 class ServerLog : public Log, public Signaller
  60 {
  61 public:
  62
  63         string get () const {
  64                 string a;
  65                 BOOST_FOREACH (string const & i, _log) {
  66                         a += i + "\n";
  67                 }
  68                 return a;
  69         }
  70
  71         string head_and_tail (int) const {
  72                 /* Not necessary */
  73                 return "";
  74         }
  75
  76         float fps () const {
  77                 boost::mutex::scoped_lock lm (_state_mutex);
  78                 return _fps;
  79         }
  80
  81         boost::signals2::signal<void(string)> Appended;
  82         boost::signals2::signal<void(int)> Removed;
  83
  84 private:
  85         void do_log (shared_ptr<const LogEntry> entry)
  86         {
  87                 time_t const s = entry->seconds ();
  88                 struct tm* local = localtime (&s);
  89                 if (
  90                         !_last_time ||
  91                         local->tm_yday != _last_time->tm_yday ||
  92                         local->tm_year != _last_time->tm_year ||
  93                         local->tm_hour != _last_time->tm_hour ||
  94                         local->tm_min != _last_time->tm_min
  95                         ) {
  96                         char buffer[64];
  97                         strftime (buffer, 64, "%c", local);
  98                         append (buffer);
  99                 }
 100
 101                 append (entry->message ());
 102                 if (_log.size() > log_lines) {
 103                         emit (boost::bind (boost::ref (Removed), _log.front().length()));
 104                         _log.pop_front ();
 105                 }
 106                 _last_time = *local;
 107
 108                 shared_ptr<const EncodedLogEntry> encoded = dynamic_pointer_cast<const EncodedLogEntry> (entry);
 109                 if (encoded) {
 110                         _history.push_back (encoded->seconds ());
 111                         if (_history.size() > 48) {
 112                                 _history.pop_front ();
 113                         }
 114                         if (_history.size() > 2) {
 115                                 boost::mutex::scoped_lock lm (_state_mutex);
 116                                 _fps = _history.size() / (_history.back() - _history.front());
 117                         }
 118                 }
 119         }
 120
 121         void append (string s)
 122         {
 123                 _log.push_back (s);
 124                 emit (boost::bind (boost::ref (Appended), s));
 125         }
 126
 127         list<string> _log;
 128         optional<struct tm> _last_time;
 129         std::list<double> _history;
 130
 131         mutable boost::mutex _state_mutex;
 132         float _fps;
 133 };
 134
 135 static shared_ptr<ServerLog> server_log;
 136
 137 class StatusDialog : public wxDialog
 138 {
 139 public:
 140         StatusDialog ()
 141                 : wxDialog (
 142                         0, wxID_ANY, _("DCP-o-matic Encode Server"),
 143                         wxDefaultPosition, wxDefaultSize,
 144                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER
 145                         )
 146         {
 147                 wxFlexGridSizer* state_sizer = new wxFlexGridSizer (2, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 148
 149                 add_label_to_sizer (state_sizer, this, _("Frames per second"), true);
 150                 _fps = new wxStaticText (this, wxID_ANY, wxT(""));
 151                 state_sizer->Add (_fps);
 152
 153                 wxFlexGridSizer* log_sizer = new wxFlexGridSizer (1, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 154                 log_sizer->AddGrowableCol (0, 1);
 155
 156                 wxClientDC dc (this);
 157                 wxSize size = dc.GetTextExtent (wxT ("This is the length of the file label it should be quite long"));
 158                 int const height = (size.GetHeight() + 2) * log_lines;
 159                 SetSize (700, height + DCPOMATIC_SIZER_GAP * 2);
 160
 161                 _text = new wxTextCtrl (
 162                         this, wxID_ANY, std_to_wx (server_log->get()), wxDefaultPosition, wxSize (-1, height),
 163                         wxTE_READONLY | wxTE_MULTILINE
 164                         );
 165
 166                 log_sizer->Add (_text, 1, wxEXPAND);
 167
 168                 wxBoxSizer* overall_sizer = new wxBoxSizer (wxVERTICAL);
 169                 overall_sizer->Add (state_sizer, 0, wxALL, DCPOMATIC_SIZER_GAP);
 170                 overall_sizer->Add (log_sizer, 1, wxEXPAND | wxALL, DCPOMATIC_SIZER_GAP);
 171                 SetSizer (overall_sizer);
 172                 overall_sizer->Layout ();
 173
 174                 Bind (wxEVT_TIMER, boost::bind (&StatusDialog::update_state, this));
 175                 _timer.reset (new wxTimer (this));
 176                 _timer->Start (1000);
 177
 178                 server_log->Appended.connect (bind (&StatusDialog::appended, this, _1));
 179                 server_log->Removed.connect (bind (&StatusDialog::removed, this, _1));
 180         }
 181
 182 private:
 183         void appended (string s)
 184         {
 185                 (*_text) << s << "\n";
 186         }
 187
 188         void removed (int n)
 189         {
 190                 _text->Remove (0, n + 1);
 191         }
 192
 193         void update_state ()
 194         {
 195                 _fps->SetLabel (wxString::Format ("%.1f", server_log->fps()));
 196         }
 197
 198         wxTextCtrl* _text;
 199         wxStaticText* _fps;
 200         boost::shared_ptr<wxTimer> _timer;
 201 };
 202
 203 class TaskBarIcon : public wxTaskBarIcon
 204 {
 205 public:
 206         TaskBarIcon ()
 207                 : _status (0)
 208         {
 209 #ifdef DCPOMATIC_WINDOWS
 210                 wxIcon icon (std_to_wx ("id"));
 211 #else
 212                 wxInitAllImageHandlers();
 213 #ifdef DCPOMATIC_LINUX
 214                 wxBitmap bitmap (wxString::Format (wxT ("%s/dcpomatic2_server_small.png"), std_to_wx (shared_path().string())), wxBITMAP_TYPE_PNG);
 215 #endif
 216 #ifdef DCPOMATIC_OSX
 217                 wxBitmap bitmap (wxString::Format (wxT ("%s/dcpomatic_small.png"), std_to_wx (shared_path().string())), wxBITMAP_TYPE_PNG);
 218 #endif
 219                 wxIcon icon;
 220                 icon.CopyFromBitmap (bitmap);
 221 #endif
 222
 223                 SetIcon (icon, std_to_wx ("DCP-o-matic Encode Server"));
 224
 225                 Bind (wxEVT_MENU, boost::bind (&TaskBarIcon::status, this), ID_status);
 226                 Bind (wxEVT_MENU, boost::bind (&TaskBarIcon::quit, this), ID_quit);
 227         }
 228
 229         wxMenu* CreatePopupMenu ()
 230         {
 231                 wxMenu* menu = new wxMenu;
 232                 menu->Append (ID_status, std_to_wx ("Status..."));
 233                 menu->Append (ID_quit, std_to_wx ("Quit"));
 234                 return menu;
 235         }
 236
 237 private:
 238         void status ()
 239         {
 240                 if (!_status) {
 241                         _status = new StatusDialog ();
 242                 }
 243                 _status->Show ();
 244         }
 245
 246         void quit ()
 247         {
 248                 wxTheApp->ExitMainLoop ();
 249         }
 250
 251         StatusDialog* _status;
 252 };
 253
 254 class App : public wxApp, public ExceptionStore
 255 {
 256 public:
 257         App ()
 258                 : wxApp ()
 259                 , _thread (0)
 260                 , _icon (0)
 261         {}
 262
 263 private:
 264
 265         bool OnInit ()
 266         {
 267                 if (!wxApp::OnInit ()) {
 268                         return false;
 269                 }
 270
 271                 server_log.reset (new ServerLog);
 272                 dcpomatic_log = server_log;
 273
 274                 Config::FailedToLoad.connect (boost::bind (&App::config_failed_to_load, this));
 275                 Config::Warning.connect (boost::bind (&App::config_warning, this, _1));
 276
 277                 wxSplashScreen* splash = maybe_show_splash ();
 278
 279                 dcpomatic_setup_path_encoding ();
 280                 dcpomatic_setup_i18n ();
 281                 dcpomatic_setup ();
 282                 Config::drop ();
 283
 284                 signal_manager = new wxSignalManager (this);
 285                 Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
 286
 287                 _icon = new TaskBarIcon;
 288                 _thread = new thread (bind (&App::main_thread, this));
 289
 290                 Bind (wxEVT_TIMER, boost::bind (&App::check, this));
 291                 _timer.reset (new wxTimer (this));
 292                 _timer->Start (1000);
 293
 294                 if (splash) {
 295                         splash->Destroy ();
 296                 }
 297
 298                 return true;
 299         }
 300
 301         int OnExit ()
 302         {
 303                 delete _icon;
 304                 return wxApp::OnExit ();
 305         }
 306
 307         void main_thread ()
 308         try {
 309                 EncodeServer server (false, Config::instance()->server_encoding_threads());
 310                 server.run ();
 311         } catch (...) {
 312                 store_current ();
 313         }
 314
 315         void check ()
 316         {
 317                 try {
 318                         rethrow ();
 319                 } catch (exception& e) {
 320                         error_dialog (0, std_to_wx (e.what ()));
 321                         wxTheApp->ExitMainLoop ();
 322                 } catch (...) {
 323                         error_dialog (0, _("An unknown error has occurred with the DCP-o-matic server."));
 324                         wxTheApp->ExitMainLoop ();
 325                 }
 326         }
 327
 328         void idle ()
 329         {
 330                 signal_manager->ui_idle ();
 331         }
 332
 333         void config_failed_to_load ()
 334         {
 335                 message_dialog (0, _("The existing configuration failed to load.  Default values will be used instead.  These may take a short time to create."));
 336         }
 337
 338         void config_warning (string m)
 339         {
 340                 message_dialog (0, std_to_wx (m));
 341         }
 342
 343         boost::thread* _thread;
 344         TaskBarIcon* _icon;
 345         shared_ptr<wxTimer> _timer;
 346 };
 347
 348 IMPLEMENT_APP (App)