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 "lib/warnings.h"
  33 DCPOMATIC_DISABLE_WARNINGS
  34 #include <wx/taskbar.h>
  35 #include <wx/splash.h>
  36 #include <wx/icon.h>
  37 DCPOMATIC_ENABLE_WARNINGS
  38 #include <boost/thread.hpp>
  39 #include <boost/foreach.hpp>
  40 #include <boost/optional.hpp>
  41 #include <iostream>
  42
  43 using std::cout;
  44 using std::string;
  45 using std::exception;
  46 using std::list;
  47 using std::fixed;
  48 using std::setprecision;
  49 using boost::shared_ptr;
  50 using boost::thread;
  51 using boost::bind;
  52 using boost::optional;
  53 using boost::dynamic_pointer_cast;
  54
  55 enum {
  56         ID_status = 1,
  57         ID_quit,
  58         ID_timer
  59 };
  60
  61 static unsigned int const log_lines = 32;
  62
  63 class ServerLog : public Log, public Signaller
  64 {
  65 public:
  66         ServerLog ()
  67                 : _fps (0)
  68         {}
  69
  70         string get () const {
  71                 string a;
  72                 BOOST_FOREACH (string const & i, _log) {
  73                         a += i + "\n";
  74                 }
  75                 return a;
  76         }
  77
  78         float fps () const {
  79                 boost::mutex::scoped_lock lm (_state_mutex);
  80                 return _fps;
  81         }
  82
  83         boost::signals2::signal<void(string)> Appended;
  84         boost::signals2::signal<void(int)> Removed;
  85
  86 private:
  87         void do_log (shared_ptr<const LogEntry> entry)
  88         {
  89                 time_t const s = entry->seconds ();
  90                 struct tm* local = localtime (&s);
  91                 if (
  92                         !_last_time ||
  93                         local->tm_yday != _last_time->tm_yday ||
  94                         local->tm_year != _last_time->tm_year ||
  95                         local->tm_hour != _last_time->tm_hour ||
  96                         local->tm_min != _last_time->tm_min
  97                         ) {
  98                         char buffer[64];
  99                         strftime (buffer, 64, "%c", local);
 100                         append (buffer);
 101                 }
 102
 103                 append (entry->message ());
 104                 if (_log.size() > log_lines) {
 105                         emit (boost::bind (boost::ref (Removed), _log.front().length()));
 106                         _log.pop_front ();
 107                 }
 108                 _last_time = *local;
 109
 110                 shared_ptr<const EncodedLogEntry> encoded = dynamic_pointer_cast<const EncodedLogEntry> (entry);
 111                 if (encoded) {
 112                         _history.push_back (encoded->seconds ());
 113                         if (_history.size() > 48) {
 114                                 _history.pop_front ();
 115                         }
 116                         if (_history.size() > 2) {
 117                                 boost::mutex::scoped_lock lm (_state_mutex);
 118                                 _fps = _history.size() / (_history.back() - _history.front());
 119                         }
 120                 }
 121         }
 122
 123         void append (string s)
 124         {
 125                 _log.push_back (s);
 126                 emit (boost::bind (boost::ref (Appended), s));
 127         }
 128
 129         list<string> _log;
 130         optional<struct tm> _last_time;
 131         std::list<double> _history;
 132
 133         mutable boost::mutex _state_mutex;
 134         float _fps;
 135 };
 136
 137 static shared_ptr<ServerLog> server_log;
 138
 139 class StatusDialog : public wxDialog
 140 {
 141 public:
 142         StatusDialog ()
 143                 : wxDialog (
 144                         0, wxID_ANY, _("DCP-o-matic Encode Server"),
 145                         wxDefaultPosition, wxDefaultSize,
 146 #ifdef DCPOMATIC_OSX
 147                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER | wxSTAY_ON_TOP
 148 #else
 149                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER
 150 #endif
 151                         )
 152         {
 153                 wxFlexGridSizer* state_sizer = new wxFlexGridSizer (2, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 154
 155                 add_label_to_sizer (state_sizer, this, _("Frames per second"), true);
 156                 _fps = new StaticText (this, wxT(""));
 157                 state_sizer->Add (_fps);
 158
 159                 wxFlexGridSizer* log_sizer = new wxFlexGridSizer (1, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 160                 log_sizer->AddGrowableCol (0, 1);
 161
 162                 wxClientDC dc (this);
 163                 wxSize size = dc.GetTextExtent (wxT ("This is the length of the file label it should be quite long"));
 164                 int const height = (size.GetHeight() + 2) * log_lines;
 165                 SetSize (700, height + DCPOMATIC_SIZER_GAP * 2);
 166
 167                 _text = new wxTextCtrl (
 168                         this, wxID_ANY, std_to_wx (server_log->get()), wxDefaultPosition, wxSize (-1, height),
 169                         wxTE_READONLY | wxTE_MULTILINE
 170                         );
 171
 172                 log_sizer->Add (_text, 1, wxEXPAND);
 173
 174                 wxBoxSizer* overall_sizer = new wxBoxSizer (wxVERTICAL);
 175                 overall_sizer->Add (state_sizer, 0, wxALL, DCPOMATIC_SIZER_GAP);
 176                 overall_sizer->Add (log_sizer, 1, wxEXPAND | wxALL, DCPOMATIC_SIZER_GAP);
 177                 SetSizer (overall_sizer);
 178                 overall_sizer->Layout ();
 179
 180                 Bind (wxEVT_TIMER, boost::bind (&StatusDialog::update_state, this));
 181                 _timer.reset (new wxTimer (this));
 182                 _timer->Start (1000);
 183
 184                 server_log->Appended.connect (bind (&StatusDialog::appended, this, _1));
 185                 server_log->Removed.connect (bind (&StatusDialog::removed, this, _1));
 186         }
 187
 188 private:
 189         void appended (string s)
 190         {
 191                 (*_text) << s << "\n";
 192         }
 193
 194         void removed (int n)
 195         {
 196                 _text->Remove (0, n + 1);
 197         }
 198
 199         void update_state ()
 200         {
 201                 _fps->SetLabel (wxString::Format ("%.1f", server_log->fps()));
 202         }
 203
 204         wxTextCtrl* _text;
 205         wxStaticText* _fps;
 206         boost::shared_ptr<wxTimer> _timer;
 207 };
 208
 209 class TaskBarIcon : public wxTaskBarIcon
 210 {
 211 public:
 212         TaskBarIcon ()
 213                 : _status (0)
 214         {
 215 #ifdef DCPOMATIC_WINDOWS
 216                 wxIcon icon (std_to_wx ("id"));
 217 #else
 218                 wxBitmap bitmap (wxString::Format (wxT ("%s/dcpomatic_small.png"), std_to_wx (shared_path().string())), wxBITMAP_TYPE_PNG);
 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                 , _icon (0)
 260         {}
 261
 262 private:
 263
 264         bool OnInit ()
 265         {
 266                 if (!wxApp::OnInit ()) {
 267                         return false;
 268                 }
 269
 270                 wxInitAllImageHandlers ();
 271
 272                 server_log.reset (new ServerLog);
 273                 server_log->set_types (LogEntry::TYPE_GENERAL | LogEntry::TYPE_WARNING | LogEntry::TYPE_ERROR);
 274                 dcpomatic_log = server_log;
 275
 276                 Config::FailedToLoad.connect (boost::bind (&App::config_failed_to_load, this));
 277                 Config::Warning.connect (boost::bind (&App::config_warning, this, _1));
 278
 279                 wxSplashScreen* splash = maybe_show_splash ();
 280
 281                 dcpomatic_setup_path_encoding ();
 282                 dcpomatic_setup_i18n ();
 283                 dcpomatic_setup ();
 284                 Config::drop ();
 285
 286                 signal_manager = new wxSignalManager (this);
 287                 Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
 288
 289                 /* Bad things happen (on Linux at least) if the config is reloaded by main_thread;
 290                    it seems like there's a race which results in the locked_sstream mutex being
 291                    locked before it is initialised.  Calling Config::instance() here loads the config
 292                    again in this thread, which seems to work around the problem.
 293                 */
 294                 Config::instance();
 295
 296 #ifdef DCPOMATIC_LINUX
 297                 StatusDialog* d = new StatusDialog ();
 298                 d->Show ();
 299 #else
 300                 _icon = new TaskBarIcon;
 301 #endif
 302                 _thread = thread (bind (&App::main_thread, this));
 303
 304                 Bind (wxEVT_TIMER, boost::bind (&App::check, this));
 305                 _timer.reset (new wxTimer (this));
 306                 _timer->Start (1000);
 307
 308                 if (splash) {
 309                         splash->Destroy ();
 310                 }
 311
 312                 SetExitOnFrameDelete (false);
 313
 314                 return true;
 315         }
 316
 317         int OnExit ()
 318         {
 319                 delete _icon;
 320                 return wxApp::OnExit ();
 321         }
 322
 323         void main_thread ()
 324         try {
 325                 EncodeServer server (false, Config::instance()->server_encoding_threads());
 326                 server.run ();
 327         } catch (...) {
 328                 store_current ();
 329         }
 330
 331         void check ()
 332         {
 333                 try {
 334                         rethrow ();
 335                 } catch (exception& e) {
 336                         error_dialog (0, std_to_wx (e.what ()));
 337                         wxTheApp->ExitMainLoop ();
 338                 } catch (...) {
 339                         error_dialog (0, _("An unknown error has occurred with the DCP-o-matic server."));
 340                         wxTheApp->ExitMainLoop ();
 341                 }
 342         }
 343
 344         void idle ()
 345         {
 346                 signal_manager->ui_idle ();
 347         }
 348
 349         void config_failed_to_load ()
 350         {
 351                 message_dialog (0, _("The existing configuration failed to load.  Default values will be used instead.  These may take a short time to create."));
 352         }
 353
 354         void config_warning (string m)
 355         {
 356                 message_dialog (0, std_to_wx (m));
 357         }
 358
 359         boost::thread _thread;
 360         TaskBarIcon* _icon;
 361         shared_ptr<wxTimer> _timer;
 362 };
 363
 364 IMPLEMENT_APP (App)