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/id.h"
  22 #include "wx/static_text.h"
  23 #include "wx/wx_signal_manager.h"
  24 #include "wx/wx_util.h"
  25 #include "lib/config.h"
  26 #include "lib/cross.h"
  27 #include "lib/dcpomatic_log.h"
  28 #include "lib/encode_server.h"
  29 #include "lib/encoded_log_entry.h"
  30 #include "lib/log.h"
  31 #include "lib/signaller.h"
  32 #include "lib/util.h"
  33 #include <dcp/warnings.h>
  34 LIBDCP_DISABLE_WARNINGS
  35 #include <wx/icon.h>
  36 #include <wx/splash.h>
  37 #include <wx/taskbar.h>
  38 LIBDCP_ENABLE_WARNINGS
  39 #include <boost/thread.hpp>
  40 #include <boost/optional.hpp>
  41 #include <iostream>
  42
  43
  44 using std::cout;
  45 using std::dynamic_pointer_cast;
  46 using std::exception;
  47 using std::fixed;
  48 using std::list;
  49 using std::setprecision;
  50 using std::shared_ptr;
  51 using std::string;
  52 using boost::bind;
  53 using boost::optional;
  54 using boost::thread;
  55 #if BOOST_VERSION >= 106100
  56 using namespace boost::placeholders;
  57 #endif
  58
  59
  60 enum {
  61         ID_status = DCPOMATIC_MAIN_MENU,
  62         ID_quit,
  63         ID_timer
  64 };
  65
  66 static unsigned int const log_lines = 32;
  67
  68
  69 class ServerLog : public Log, public Signaller
  70 {
  71 public:
  72         ServerLog ()
  73                 : _fps (0)
  74         {}
  75
  76         string get () const {
  77                 string a;
  78                 for (auto const& i: _log) {
  79                         a += i + "\n";
  80                 }
  81                 return a;
  82         }
  83
  84         float fps () const {
  85                 boost::mutex::scoped_lock lm (_state_mutex);
  86                 return _fps;
  87         }
  88
  89         boost::signals2::signal<void(string)> Appended;
  90         boost::signals2::signal<void(int)> Removed;
  91
  92 private:
  93         void do_log (shared_ptr<const LogEntry> entry) override
  94         {
  95                 time_t const s = entry->seconds ();
  96                 struct tm* local = localtime (&s);
  97                 if (
  98                         !_last_time ||
  99                         local->tm_yday != _last_time->tm_yday ||
 100                         local->tm_year != _last_time->tm_year ||
 101                         local->tm_hour != _last_time->tm_hour ||
 102                         local->tm_min != _last_time->tm_min
 103                         ) {
 104                         char buffer[64];
 105                         strftime (buffer, 64, "%c", local);
 106                         append (buffer);
 107                 }
 108
 109                 append (entry->message ());
 110                 if (_log.size() > log_lines) {
 111                         emit (boost::bind (boost::ref (Removed), _log.front().length()));
 112                         _log.pop_front ();
 113                 }
 114                 _last_time = *local;
 115
 116                 auto encoded = dynamic_pointer_cast<const EncodedLogEntry> (entry);
 117                 if (encoded) {
 118                         _history.push_back (encoded->seconds ());
 119                         if (_history.size() > 48) {
 120                                 _history.pop_front ();
 121                         }
 122                         if (_history.size() > 2) {
 123                                 boost::mutex::scoped_lock lm (_state_mutex);
 124                                 _fps = _history.size() / (_history.back() - _history.front());
 125                         }
 126                 }
 127         }
 128
 129         void append (string s)
 130         {
 131                 _log.push_back (s);
 132                 emit (boost::bind(boost::ref(Appended), s));
 133         }
 134
 135         list<string> _log;
 136         optional<struct tm> _last_time;
 137         std::list<double> _history;
 138
 139         mutable boost::mutex _state_mutex;
 140         float _fps;
 141 };
 142
 143
 144 static shared_ptr<ServerLog> server_log;
 145
 146
 147 class StatusDialog : public wxDialog
 148 {
 149 public:
 150         StatusDialog ()
 151                 : wxDialog (
 152                         nullptr, wxID_ANY, _("DCP-o-matic Encode Server"),
 153                         wxDefaultPosition, wxDefaultSize,
 154 #ifdef DCPOMATIC_OSX
 155                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER | wxSTAY_ON_TOP
 156 #else
 157                         wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER
 158 #endif
 159                         )
 160         {
 161                 auto state_sizer = new wxFlexGridSizer (2, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 162
 163                 add_label_to_sizer (state_sizer, this, _("Frames per second"), true);
 164                 _fps = new StaticText (this, wxT(""));
 165                 state_sizer->Add (_fps);
 166
 167                 auto log_sizer = new wxFlexGridSizer (1, DCPOMATIC_SIZER_GAP, DCPOMATIC_SIZER_GAP);
 168                 log_sizer->AddGrowableCol (0, 1);
 169
 170                 wxClientDC dc (this);
 171                 wxSize size = dc.GetTextExtent (wxT ("This is the length of the file label it should be quite long"));
 172                 int const height = (size.GetHeight() + 2) * log_lines;
 173                 SetSize (700, height + DCPOMATIC_SIZER_GAP * 2);
 174
 175                 _text = new wxTextCtrl (
 176                         this, wxID_ANY, std_to_wx (server_log->get()), wxDefaultPosition, wxSize (-1, height),
 177                         wxTE_READONLY | wxTE_MULTILINE
 178                         );
 179
 180                 log_sizer->Add (_text, 1, wxEXPAND);
 181
 182                 wxBoxSizer* overall_sizer = new wxBoxSizer (wxVERTICAL);
 183                 overall_sizer->Add (state_sizer, 0, wxALL, DCPOMATIC_SIZER_GAP);
 184                 overall_sizer->Add (log_sizer, 1, wxEXPAND | wxALL, DCPOMATIC_SIZER_GAP);
 185                 SetSizer (overall_sizer);
 186                 overall_sizer->Layout ();
 187
 188                 Bind (wxEVT_TIMER, boost::bind (&StatusDialog::update_state, this));
 189                 _timer.reset (new wxTimer (this));
 190                 _timer->Start (1000);
 191
 192                 server_log->Appended.connect (bind (&StatusDialog::appended, this, _1));
 193                 server_log->Removed.connect (bind (&StatusDialog::removed, this, _1));
 194         }
 195
 196 private:
 197         void appended (string s)
 198         {
 199                 (*_text) << s << "\n";
 200         }
 201
 202         void removed (int n)
 203         {
 204                 _text->Remove (0, n + 1);
 205         }
 206
 207         void update_state ()
 208         {
 209                 _fps->SetLabel (wxString::Format ("%.1f", server_log->fps()));
 210         }
 211
 212         wxTextCtrl* _text;
 213         wxStaticText* _fps;
 214         std::shared_ptr<wxTimer> _timer;
 215 };
 216
 217
 218 static StatusDialog* status_dialog = nullptr;
 219
 220
 221 class TaskBarIcon : public wxTaskBarIcon
 222 {
 223 public:
 224         TaskBarIcon ()
 225         {
 226                 set_icon ();
 227
 228                 Bind (wxEVT_MENU, boost::bind (&TaskBarIcon::status, this), ID_status);
 229                 Bind (wxEVT_MENU, boost::bind (&TaskBarIcon::quit, this), ID_quit);
 230         }
 231
 232         wxMenu* CreatePopupMenu () override
 233         {
 234                 auto menu = new wxMenu;
 235                 menu->Append (ID_status, std_to_wx ("Status..."));
 236                 menu->Append (ID_quit, std_to_wx ("Quit"));
 237                 return menu;
 238         }
 239
 240         void set_icon ()
 241         {
 242 #ifdef DCPOMATIC_WINDOWS
 243                 wxIcon icon (std_to_wx("id"));
 244 #else
 245                 string const colour = gui_is_dark() ? "white" : "black";
 246                 wxBitmap bitmap (
 247                         bitmap_path(String::compose("dcpomatic_small_%1.png", colour)),
 248                         wxBITMAP_TYPE_PNG
 249                         );
 250                 wxIcon icon;
 251                 icon.CopyFromBitmap (bitmap);
 252 #endif
 253
 254                 SetIcon (icon, std_to_wx ("DCP-o-matic Encode Server"));
 255         }
 256
 257 private:
 258         void status ()
 259         {
 260                 status_dialog->Show ();
 261         }
 262
 263         void quit ()
 264         {
 265                 wxTheApp->ExitMainLoop ();
 266         }
 267 };
 268
 269
 270 class App : public wxApp, public ExceptionStore
 271 {
 272 public:
 273         App ()
 274                 : wxApp ()
 275         {}
 276
 277 private:
 278
 279         bool OnInit () override
 280         {
 281                 if (!wxApp::OnInit()) {
 282                         return false;
 283                 }
 284
 285                 wxInitAllImageHandlers ();
 286
 287                 server_log.reset (new ServerLog);
 288                 server_log->set_types (LogEntry::TYPE_GENERAL | LogEntry::TYPE_WARNING | LogEntry::TYPE_ERROR);
 289                 dcpomatic_log = server_log;
 290
 291                 Config::FailedToLoad.connect(boost::bind(&App::config_failed_to_load, this, _1));
 292                 Config::Warning.connect (boost::bind (&App::config_warning, this, _1));
 293
 294                 auto splash = maybe_show_splash ();
 295
 296                 dcpomatic_setup_path_encoding ();
 297                 dcpomatic_setup_i18n ();
 298                 dcpomatic_setup ();
 299                 Config::drop ();
 300
 301                 signal_manager = new wxSignalManager (this);
 302                 Bind (wxEVT_IDLE, boost::bind (&App::idle, this));
 303
 304                 /* Bad things happen (on Linux at least) if the config is reloaded by main_thread;
 305                    it seems like there's a race which results in the locked_sstream mutex being
 306                    locked before it is initialised.  Calling Config::instance() here loads the config
 307                    again in this thread, which seems to work around the problem.
 308                 */
 309                 Config::instance();
 310
 311                 status_dialog = new StatusDialog ();
 312 #ifdef DCPOMATIC_LINUX
 313                 status_dialog->Show ();
 314 #else
 315                 _icon = new TaskBarIcon;
 316                 status_dialog->Bind (wxEVT_SYS_COLOUR_CHANGED, boost::bind(&TaskBarIcon::set_icon, _icon));
 317 #endif
 318                 _thread = thread (bind (&App::main_thread, this));
 319
 320                 Bind (wxEVT_TIMER, boost::bind (&App::check, this));
 321                 _timer.reset (new wxTimer (this));
 322                 _timer->Start (1000);
 323
 324                 if (splash) {
 325                         splash->Destroy ();
 326                 }
 327
 328                 SetExitOnFrameDelete (false);
 329
 330                 return true;
 331         }
 332
 333         int OnExit () override
 334         {
 335                 delete _icon;
 336                 return wxApp::OnExit ();
 337         }
 338
 339         void main_thread ()
 340         try {
 341                 EncodeServer server (false, Config::instance()->server_encoding_threads());
 342                 server.run ();
 343         } catch (...) {
 344                 store_current ();
 345         }
 346
 347         void check ()
 348         {
 349                 try {
 350                         rethrow ();
 351                 } catch (exception& e) {
 352                         error_dialog (nullptr, std_to_wx(e.what()));
 353                         wxTheApp->ExitMainLoop ();
 354                 } catch (...) {
 355                         error_dialog (nullptr, _("An unknown error has occurred with the DCP-o-matic server."));
 356                         wxTheApp->ExitMainLoop ();
 357                 }
 358         }
 359
 360         void idle ()
 361         {
 362                 signal_manager->ui_idle ();
 363         }
 364
 365         void config_failed_to_load(Config::LoadFailure what)
 366         {
 367                 report_config_load_failure(nullptr, what);
 368         }
 369
 370         void config_warning (string m)
 371         {
 372                 message_dialog (nullptr, std_to_wx(m));
 373         }
 374
 375         boost::thread _thread;
 376         TaskBarIcon* _icon = nullptr;
 377         shared_ptr<wxTimer> _timer;
 378 };
 379
 380 IMPLEMENT_APP (App)