OpenFlipper.cc 28.9 KB
Newer Older
Jan Möbius's avatar
Jan Möbius committed
1 2 3
/*===========================================================================*\
*                                                                            *
*                              OpenFlipper                                   *
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
 *           Copyright (c) 2001-2015, RWTH-Aachen University                 *
 *           Department of Computer Graphics and Multimedia                  *
 *                          All rights reserved.                             *
 *                            www.openflipper.org                            *
 *                                                                           *
 *---------------------------------------------------------------------------*
 * This file is part of OpenFlipper.                                         *
 *---------------------------------------------------------------------------*
 *                                                                           *
 * Redistribution and use in source and binary forms, with or without        *
 * modification, are permitted provided that the following conditions        *
 * are met:                                                                  *
 *                                                                           *
 * 1. Redistributions of source code must retain the above copyright notice, *
 *    this list of conditions and the following disclaimer.                  *
 *                                                                           *
 * 2. Redistributions in binary form must reproduce the above copyright      *
 *    notice, this list of conditions and the following disclaimer in the    *
 *    documentation and/or other materials provided with the distribution.   *
 *                                                                           *
 * 3. Neither the name of the copyright holder nor the names of its          *
 *    contributors may be used to endorse or promote products derived from   *
 *    this software without specific prior written permission.               *
 *                                                                           *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS       *
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A           *
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  *
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,       *
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR        *
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF    *
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING      *
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS        *
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.              *
Jan Möbius's avatar
Jan Möbius committed
39 40
*                                                                            *
\*===========================================================================*/
41

42

43 44 45 46 47 48



// Mainwindow

#include "OpenFlipper/Core/Core.hh"
Hans-Christian Ebke's avatar
Hans-Christian Ebke committed
49
#include "common/glew_wrappers.hh"
50
#include "OpenFlipper/BasePlugin/PluginFunctionsCore.hh"
51 52 53 54 55 56

// Qt
#include <qgl.h>

// stdc++
#include <csignal>
57
#include <regex>
58 59

#include <QCommandLineParser>
60

61
#if ( defined(WIN32))
62 63 64 65
  #define NO_EXECINFO
#endif

#ifndef NO_EXECINFO
66
#include <execinfo.h>
67 68
#endif

69 70 71 72
#ifdef PYTHON_ENABLED
  #include <PythonInterpreter/PythonInterpreter.hh>
#endif

73 74 75
#ifdef USE_OPENMP
#endif

76 77 78 79 80 81 82 83
/* ==========================================================
 *
 * Stackwalker code. Used to get a backtrace if OpenFlipper
 * crashes under windows
 *
 * ==========================================================*/


84 85
#ifdef WIN32
  #include "StackWalker/StackWalker.hh"
86
  #include <fstream>
87 88 89 90 91 92

  class StackWalkerToConsole : public StackWalker
  {
  protected:
	  virtual void OnOutput(LPCSTR szText)
    	{
93 94 95
			// Writes crash dump to .OpenFlipper config directory
			std::ofstream crashFile;
			QString crashName = OpenFlipper::Options::configDirStr() + QDir::separator() + "CrashDump.txt";
Jan Möbius's avatar
Jan Möbius committed
96
			crashFile.open(crashName.toLatin1(),std::ios::out | std::ios::app);
97 98
			crashFile << szText;
			crashFile.close();
Jan Möbius's avatar
Jan Möbius committed
99 100 101

			// Write crash dump to console as well
			StackWalker::OnOutput(szText);
102 103 104 105
	  }
  };
#endif

106 107 108 109 110 111 112 113 114

/* ==========================================================
 *
 * Console for Windows to get additional output written via
 * cerr, cout, ... that is not forwarded to log window
 *
 * ==========================================================*/

#ifdef WIN32
115

116 117 118 119 120 121 122 123 124 125 126 127 128
void connect_console()
{
  FILE* check = freopen("CONIN$", "r", stdin);
  if (check) {
    std::cerr << "Error reopening stdin" << std::endl;
  }
  check = freopen("CONOUT$", "w", stdout);
  if (check) {
    std::cerr << "Error reopening stdout" << std::endl;
  }
  check = freopen("CONOUT$", "w", stderr);
  if (check) {
    std::cerr << "Error reopening stderr" << std::endl;
129
  }
130 131 132 133 134 135
  std::cout.clear();
  std::cerr.clear();
  std::cin.clear();
  std::wcout.clear();
  std::wcerr.clear();
  std::wcin.clear();
136
}
137

138
  void attachConsole()
Jan Möbius's avatar
Jan Möbius committed
139 140 141 142 143
   {
     //try to attach the console of the parent process
     if (AttachConsole(-1))
     {
       //if the console was attached change stdinput and output
144
       connect_console();
Jan Möbius's avatar
Jan Möbius committed
145 146 147 148 149 150
     }
     else
     {
       //create and attach a new console if needed
 #ifndef NDEBUG
       //always open a console in debug mode
151
       AllocConsole();     
152
       connect_console();
Jan Möbius's avatar
Jan Möbius committed
153 154 155 156 157 158

       return;
 #endif
       if (OpenFlipper::Options::logToConsole())
       {
         AllocConsole();
159
         connect_console();
Jan Möbius's avatar
Jan Möbius committed
160 161 162
       }
     }
   }
163

164 165 166 167 168 169 170 171
#endif

/* ==========================================================
 *
 * Linux function printing a full stack trace to the console
 *
 * ==========================================================*/
#ifndef NO_EXECINFO
172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196

#if defined(__GLIBCXX__) || defined(__GLIBCPP__)
// GCC: implement demangling using cxxabi
#include <cxxabi.h>
std::string demangle(const std::string& _symbol)
{
    int status;
    char* demangled = abi::__cxa_demangle(_symbol.c_str(), nullptr, nullptr, &status);
    if (demangled) {
        std::string result{demangled};
        free(demangled);
        if (status == 0) {
            return result;
        }
        else {
            return _symbol;
        }
    }
    else {
        return _symbol;
    }
}
#else
// other compiler environment: no demangling
std::string demangle(const std::string& _symbol)
197
{
198 199 200
    return _symbol;
}
#endif
201

202 203 204 205
void backtrace()
{
    void *addresses[20];
    char **strings;
206

207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230
    int size = backtrace(addresses, 20);
    strings = backtrace_symbols(addresses, size);
    std::cerr << "Stack frames: " << size << std::endl;
    // line format:
    // <path>(<mangled_name>+<offset>) [<address>]
    std::regex line_format{R"(^\s*(.+)\((([^()]+)?\+(0x[0-9a-f]+))?\)\s+\[(0x[0-9a-f]+)\]\s*$)"};
    for(int i = 0; i < size; i++) {
        std::string line{strings[i]};
        std::smatch match;
        std::regex_match(line, match, line_format);
        if (!match.empty()) {
            auto file_name = match[1].str();
            auto symbol = demangle(match[3].str());
            auto offset = match[4].str();
            auto address = match[5].str();
            std::cerr << i << ":";
            if (!file_name.empty()) std::cerr << " " << file_name << " ::";
            if (!symbol.empty()) std::cerr << " " << symbol;
            if (!offset.empty()) std::cerr << " (+" << offset << ")";
            if (!address.empty()) std::cerr << " [" << address << "]";
            std::cerr << std::endl;
        }
    }
    free(strings);
231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269
}
#endif

/* ==========================================================
 *
 * General segfault handler. This function is called if OpenFlipper
 * crashes
 *
 * ==========================================================*/
void segfaultHandling (int) {

  // prevent infinite recursion if segfaultHandling() causes another segfault
  std::signal(SIGSEGV, SIG_DFL);


  std::cerr << "\n" << std::endl;
  std::cerr << "\n" << std::endl;
  std::cerr << "\33[31m" << "=====================================================" << std::endl;
  std::cerr << "\33[31m" << "OpenFlipper or one of its plugins caused a Segfault." << std::endl;
  std::cerr << "\33[31m" << "This should not happen,... Sorry :-(" << std::endl;
  std::cerr << "\33[31m" << "=====================================================" << std::endl;
  std::cerr << "\n" << std::endl;

  // Linux Handler
#ifndef NO_EXECINFO
  std::cerr << "\33[0m"  << "Trying a backtrace to show what happened last: " << std::endl;
  backtrace();

  std::cerr << "\n" << std::endl;
  std::cerr << "Backtrace completed, trying to abort now ..." << std::endl;
#endif

  // Windows handler via StackWalker
#ifdef WIN32
  StackWalkerToConsole sw;
  sw.ShowCallstack();
#endif


270 271 272 273 274 275 276 277
  std::cerr << "Trying to get additional information (This might fail if the memory is corrupted)." << std::endl;

  if (OpenFlipper::Options::gui()) {
    for ( unsigned int i = 0 ; i <  4 ; ++i) {
      std::cerr << "DrawMode Viewer "<<  i << " " << PluginFunctions::drawMode(i).description() << std::endl;
    }
  }

278 279
  std::abort();
}
280

281 282 283 284 285 286
enum CommandLineParseResult
{
    CommandLineOk,
    CommandLineError,
    CommandLineVersionRequested,
    CommandLineHelpRequested
287 288
};

289

290 291
bool openPolyMeshes = false;
bool remoteControl  = false;
292

293 294
// Parse all options
CommandLineParseResult parseCommandLine(QCommandLineParser &parser, QString *errorMessage) {
295

296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318
  #ifndef WIN32
  #ifndef __APPLE__
    //workaround for bug with stereo mode on Qt5.7.0 and Qt5.7.1 on Linux
    int QtVersionMajor, QtVersionMinor, QtVersionPatch;
    if(sscanf(qVersion(),"%1d.%1d.%1d",&QtVersionMajor, &QtVersionMinor, &QtVersionPatch) == 3)
    {
      if(QtVersionMajor == 5 && QtVersionMinor >= 7)
      {
        if(QtVersionPatch < 2)
        {
          std::cerr << "The used Qt Version does not support stereo mode. Disabling stereo mode." << std::endl;
          OpenFlipper::Options::stereo(false);
        }
        else
          std::cerr << "Stereo Mode has not been tested for the used Qt Version." << std::endl;
      }
    }
  #endif
  #endif


 parser.setSingleDashWordOptionMode(QCommandLineParser::ParseAsLongOptions);

319

320 321
 QCommandLineOption debugOption(QStringList() << "d" << "debug",QCoreApplication::translate("main", "Enable debugging mode"));
 parser.addOption(debugOption);
322

323 324
 QCommandLineOption stereoOption("disable-stereo",QCoreApplication::translate("main", "Disable stereo mode"));
 parser.addOption(stereoOption);
325

326 327
 QCommandLineOption batchOption(QStringList() << "b" << "batch",QCoreApplication::translate("main", "Batch mode, you have to provide a script for execution"));
 parser.addOption(batchOption);
328

329 330
 QCommandLineOption logConsoleOption(QStringList() << "c" << "log-to-console",QCoreApplication::translate("main", "Write logger window contents to console"));
 parser.addOption(logConsoleOption);
331

332 333
 QCommandLineOption remoteControlOption("remote-control",QCoreApplication::translate("main", "Batch mode accepting remote connections"));
 parser.addOption(remoteControlOption);
334

335
 QCommandLineOption fulscreenOption(QStringList() << "f" << "fullscreen",QCoreApplication::translate("main", "Start in fullscreen mode"));
336
 parser.addOption(fulscreenOption);
337

338 339
 QCommandLineOption hideLoggerOption(QStringList() << "l" << "hide-logger",QCoreApplication::translate("main", "Start with hidden log window"));
 parser.addOption(hideLoggerOption);
340

341 342
 QCommandLineOption hideToolboxOption(QStringList() << "t" << "hide-toolbox",QCoreApplication::translate("main", "Start with hidden toolbox"));
 parser.addOption(hideToolboxOption);
343

344 345
 QCommandLineOption noSplashOption("no-splash",QCoreApplication::translate("main", "Hide splash screen"));
 parser.addOption(noSplashOption);
346

347 348
 QCommandLineOption polyMeshOption("p",QCoreApplication::translate("main", "Open files as PolyMeshes"));
 parser.addOption(polyMeshOption);
349

350 351
 QCommandLineOption remotePortOption("remote-port",QCoreApplication::translate("main", "Remote port"),"portnumber");
 parser.addOption(remotePortOption);
352

353 354
 QCommandLineOption coreProfileOption("core-profile",QCoreApplication::translate("main", "OpenGL Core Profile Mode"));
 parser.addOption(coreProfileOption);
355 356 357 358 359 360 361
 
 QCommandLineOption glVersionOption("glVersion",QCoreApplication::translate("main","Request OpenGL version <major>.<minor> "),QCoreApplication::translate("main","< 1.0 | 1.1 | ... | 4.6 >"));
 parser.addOption(glVersionOption);
 
 QCommandLineOption samplesOption("samples",QCoreApplication::translate("main","Overwrite multisampling sample count"),QCoreApplication::translate("main","< 0 | 1 | 2 | ... | 16 >"));
 parser.addOption(samplesOption);
 
362 363 364
 QCommandLineOption glStereoOption("glStereo",QCoreApplication::translate("main","Overwrite OpenGL Stereo setting"),QCoreApplication::translate("main","< true | false >"));
 parser.addOption(glStereoOption);
 
365
 QCommandLineOption profileOption("profile",QCoreApplication::translate("main","Request OpenGL context profile <profile> with profile set as compat or core"),QCoreApplication::translate("main","< compat | core >"));
366
 parser.addOption(profileOption);
367 368 369 370

 QCommandLineOption pluginOptionsOption(QStringList() << "o" << "pluginoptions",QCoreApplication::translate("main", "Pass options to plugins"), "key1=value1;key2=value2;...");
 parser.addOption(pluginOptionsOption);

371 372
 const QCommandLineOption helpOption = parser.addHelpOption();
 const QCommandLineOption versionOption = parser.addVersionOption();
Dirk Wilden's avatar
Dirk Wilden committed
373 374


375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430
 // Now parse the command line
 if (!parser.parse(QCoreApplication::arguments())) {
   *errorMessage = parser.errorText();
   return CommandLineError;
 }

 if (parser.isSet(helpOption))
   return CommandLineHelpRequested;

 if (parser.isSet(versionOption))
   return CommandLineVersionRequested;

 if (parser.isSet(debugOption)) {
   OpenFlipper::Options::debug(true);
 }

 if (parser.isSet(stereoOption)) {
   OpenFlipper::Options::stereo(false);
 }

 if (parser.isSet(batchOption)) {
   OpenFlipper::Options::nogui(true);
 }

 if (parser.isSet(logConsoleOption)) {
   OpenFlipper::Options::logToConsole(true);
 }

 if (parser.isSet(remoteControlOption)) {
   OpenFlipper::Options::remoteControl(true);
 }

 if (parser.isSet(fulscreenOption)) {
   OpenFlipperSettings().setValue("Core/Gui/fullscreen",true);
 }

 if (parser.isSet(hideLoggerOption)) {
   OpenFlipper::Options::loggerState(OpenFlipper::Options::Hidden);
 }

 if (parser.isSet(hideToolboxOption)) {
   OpenFlipperSettings().setValue("Core/Gui/ToolBoxes/hidden",true);
 }

 if (parser.isSet(noSplashOption)) {
   OpenFlipperSettings().setValue("Core/Gui/splash",false);
 }

 if (parser.isSet(polyMeshOption)) {
   openPolyMeshes = true;
 }

 if (parser.isSet(remotePortOption)) {
   const QString port = parser.value("remote-port");
   std::cerr << "Got port option : " << port.toStdString() << std::endl;
   OpenFlipper::Options::remoteControl(port.toInt());
431
 }
432 433 434 435 436 437 438 439 440 441
 if(parser.isSet("samples"))
   OpenFlipper::Options::samples(parser.value("samples").toInt(),true);
 if(parser.isSet("glVersion"))
 {
   QStringList values = parser.value("glVersion").split(".");
   QPair<int,int> version(
          values[0].toInt(),
          values[1].toInt());
   OpenFlipper::Options::glVersion(version,true);
 }
442 443 444
 
 if(parser.isSet("glStereo"))
   OpenFlipper::Options::glStereo(parser.value("glStereo")=="true");
445

446 447
 if(parser.value(profileOption)=="core")
 {
448
     OpenFlipper::Options::coreProfile(true, true);
449 450 451 452 453
 }
 else
 {
     if(parser.value(profileOption)=="compat")
     {
454
         OpenFlipper::Options::coreProfile(false, true);
455 456
     }
 }
457
 if(parser.isSet(coreProfileOption)) {
458
   OpenFlipper::Options::coreProfile(true, true);
459
 }
460 461 462 463 464 465 466 467 468 469 470 471 472
 if(parser.isSet(pluginOptionsOption))
 {
   QStringList poptions = parser.value(pluginOptionsOption).split(";");
   QVector<QPair<QString, QString>> pcloptions;
   for(auto s : poptions)
   {
       auto kvp = s.split("=");
       auto key = kvp[0];
       auto value = kvp[1];
       pcloptions.push_back({key, value});
   }
   PluginFunctions::setPluginCommandLineOptions(pcloptions);
 }
473

474
 return CommandLineOk;
Dirk Wilden's avatar
Dirk Wilden committed
475 476
}

477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534

namespace
{

// Print human-readable GL profile strings
std::string profileToString(QSurfaceFormat::OpenGLContextProfile _profile)
{
    if(_profile == QSurfaceFormat::CompatibilityProfile)
        return "CompatibilityProfile";

    if(_profile == QSurfaceFormat::CoreProfile)
        return "CoreProfile";

    if(_profile == QSurfaceFormat::NoProfile)
        return "NoProfile";

    return "[Unknown]";
}

// Check whether a specific context request can be fulfilled
// Can also return the format of the actually created context
bool verifySpecificContextFormat(QSurfaceFormat format, QSurfaceFormat* resultingFormat = nullptr)
{
    // All created surfaces try to obey the given format
    QSurfaceFormat::setDefaultFormat(format);

    // We need a temporary qApp to create a surface and test the current context
    int tempArgC = 0;
    QApplication tempApp(tempArgC, nullptr);
    QOffscreenSurface *surface = new QOffscreenSurface();
    surface->create();

    auto shareContext = QOpenGLContext::globalShareContext();
    if(!shareContext)
    {
        std::cerr << "Error: Apparently no GL context was created!" << std::endl;
        return false;
    }

    // Make the globally shared OpenGLContext current
    shareContext->makeCurrent(surface);

    // The opengl surface properties that have actually been applied
    // (does not necessarily match the requested properties)
    auto resultFormat = QOpenGLContext::globalShareContext()->format();

    // Return the format of the actually created context (may be identical to the requested one)
    if(resultingFormat != nullptr)
        *resultingFormat = resultFormat;

    auto curVersion = resultFormat.version();

    // Human-readable name of requested profile
    auto reqProfileString = profileToString(format.profile());

    // Human-readable name of current profile
    auto curProfileString = profileToString(resultFormat.profile());

535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558
    
    // Example: OpenGL Version 4.6 -> 46
    auto reqVersionInt = format.version().first * 10 + format.version().second;
    auto curVersionInt = curVersion.first * 10 + curVersion.second;
    
    
    // Qt Docs say: Whenever "NoProfile" is returned, either the GL version is < 3.2 or (GL >= 3.2) it is actually a core profile
    // Thus we set the following guidelines:
    // 1. Whenever the actually received GL version is < than the requested one, the context is not the one requested
    // 2. If the requested version is >= 3.2 and Compat, only Compat is allowed (as NoProfile is considered core)
    // 3. If the requested version is >= 3.2 and Core or NoProfile is requested, Compat is not allowed
    
    
    // For >= 3.2, treat Core and NoProfile equally
    bool reqCoreOrNoProfile = format.profile() == QSurfaceFormat::NoProfile || format.profile() == QSurfaceFormat::CoreProfile;
    bool curCoreOrNoProfile = resultFormat.profile() == QSurfaceFormat::NoProfile || resultFormat.profile() == QSurfaceFormat::CoreProfile;
        
    if(curVersionInt < 32 && resultFormat.profile() == QSurfaceFormat::CoreProfile)
    {
        std::cerr << "Warning: Got an OpenGL core context with OpengGL version < 3.2 (" << curVersion.first << "." << curVersion.second << ")! This should not be possible." << std::endl;
        return false;
    }
    
    // Check whether the conditions above are met.
559
    // If not, print some error to the console
560 561
    if(curVersionInt < reqVersionInt ||
       (reqVersionInt >= 32 && reqCoreOrNoProfile != curCoreOrNoProfile))
562 563 564 565 566 567 568 569 570 571 572
    {
        std::cout << "[OpenGL context] Requested: "
                  << format.version().first << "." << format.version().second << " (" << reqProfileString << ")"
                  << ", Actually created: "
                  << curVersion.first << "." << curVersion.second << " (" << curProfileString << ")"
                  << std::endl;
        return false;
    }

    std::cout << "[OpenGL context] Successfully created OpenGL context with version " << curVersion.first << "."
              << curVersion.second << " (" << curProfileString << ")." << std::endl;
573 574 575 576
    if(resultFormat.profile() == QSurfaceFormat::NoProfile || curVersionInt < 32)
    {
        std::cout << "[OpenGL context] Note that 'NoProfile' is fine for OpenGL version < 3.2 as core profile was introduced in 3.2" << std::endl;
    }
577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610

    return true;
}

// Create a QSurfaceFormat from the most important properties like version and profile
QSurfaceFormat createFormat(QSurfaceFormat::OpenGLContextProfile _profile, int _glMajor, int _glMinor, int _multisamplingSamples, bool _stereo, bool _debugContext)
{
    QSurfaceFormat format;
    format.setVersion(_glMajor, _glMinor);
    format.setProfile(_profile);
    format.setSamples(_multisamplingSamples);
    format.setStereo(_stereo);
    if(_profile != QSurfaceFormat::CoreProfile)
        format.setOption(QSurfaceFormat::DeprecatedFunctions);
    if (_debugContext)
        format.setOption(format.options() | QSurfaceFormat::DebugContext);

    return format;
}

// This method tries to find the best possible OpenGL context format in the following order:
// 1. The profile/format requested via the settings
// 2. A 4.4 compatibility context (should contain all relevant GL functions)
// 3. A 3.2 core context (best choice e.g. on MacOS)
// 4. Return whatever context was applied instead of the requested ones
QSurfaceFormat getContextFormat()
{
    auto reqProfile = OpenFlipper::Options::coreProfile() ? QSurfaceFormat::CoreProfile : QSurfaceFormat::CompatibilityProfile;
    QPair<int,int> reqVersion = OpenFlipper::Options::glVersion();
    auto reqSamples = OpenFlipper::Options::samples();
    auto reqStereo = OpenFlipper::Options::glStereo();
    bool debugContext = OpenFlipper::Options::debug();


611

612
    /*
613
    // Debug: test all (possible and impossible) OpenGL versions and profiles and exit
614 615 616 617 618 619 620 621 622 623
    for(int majo = 1; majo < 5; ++majo)
        for(int mino = 0; mino < 10; ++mino)
    {
        std::cout << "========== " << majo << "." << mino << " ==========="<<std::endl;
        verifySpecificContextFormat(createFormat(QSurfaceFormat::CoreProfile, majo, mino, reqSamples, reqStereo, debugContext));
        verifySpecificContextFormat(createFormat(QSurfaceFormat::CompatibilityProfile, majo, mino, reqSamples, reqStereo, debugContext));
        verifySpecificContextFormat(createFormat(QSurfaceFormat::NoProfile, majo, mino, reqSamples, reqStereo, debugContext));
        std::cout << "================================" << std::endl;
        std::cout << std::endl;
    }
624
    exit(0);
625 626 627
    */


628

629 630 631 632 633 634 635 636 637 638 639
    QSurfaceFormat resultFormat;


    std::cout << "[OpenGL context] Trying to create a " << reqVersion.first << "." << reqVersion.second << " " << profileToString(reqProfile) << " context (default from settings)..." << std::endl;
    bool success = verifySpecificContextFormat(createFormat(reqProfile, reqVersion.first, reqVersion.second, reqSamples, reqStereo, debugContext), &resultFormat);

    // If that did not work...
    if(!success)
    {
        std::cout << "[OpenGL context] Trying to create a 4.4 compat context..." << std::endl;
        success = verifySpecificContextFormat(createFormat(QSurfaceFormat::CompatibilityProfile, 4, 4, reqSamples, reqStereo, debugContext), &resultFormat);
640
        
641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660
        if(!success)
        {
            std::cout << "[OpenGL context] Trying to create a 3.2 core context..." << std::endl;
            success = verifySpecificContextFormat(createFormat(QSurfaceFormat::CoreProfile, 3, 2, reqSamples, reqStereo, debugContext), &resultFormat);
            if(!success)
            {
                std::cerr << "[OpenGL context] Warning: Could not create any of the requested GL contexts." << std::endl;
                std::cerr << "[OpenGL context] The following context (proposed by the graphics driver) will be created:"  << std::endl;
                std::cerr << "[OpenGL context] Profile: " << profileToString(resultFormat.profile()) << ", Version: "
                          << resultFormat.version().first << "." << resultFormat.version().second << std::endl;
                std::cerr << "[OpenGL context] Please consider setting a supported OpenGL version and profile in the Options dialog." << std::endl;
            }
        }
    }

    return resultFormat;
}

}

Dirk Wilden's avatar
Dirk Wilden committed
661 662
int main(int argc, char **argv)
{
663

664 665
  // Remove -psn_0_xxxxx argument which is automatically
  // attached by MacOSX
666
  for (int i = 0; i < argc; i++) {
667 668 669 670 671
    if(strlen(argv[i]) > 4) {
      if( ( (argv[i])[0] == '-' ) &&
        ( (argv[i])[1] == 'p' ) &&
        ( (argv[i])[2] == 's' ) &&
        ( (argv[i])[3] == 'n' ) ) {
672 673
        argc--;
        argv[i] = (char *)"";
674 675 676
      }
    }
  }
677

Dirk Wilden's avatar
Dirk Wilden committed
678 679 680
  OpenFlipper::Options::argc(&argc);
  OpenFlipper::Options::argv(&argv);

681
  // Set organization and application names
682
  QCoreApplication::setOrganizationName("VCI");
683 684
  QCoreApplication::setApplicationName(TOSTRING(PRODUCT_STRING));
  QCoreApplication::setApplicationVersion(OpenFlipper::Options::coreVersion());
Dirk Wilden's avatar
Dirk Wilden committed
685

686 687 688 689
  // initialize a core application to check for commandline parameters
  QCoreApplication* coreApp = new QCoreApplication(argc, argv);

  OpenFlipper::Options::initializeSettings();
690 691 692

  QCommandLineParser parser;
  QString errorMessage;
693

694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717
  // parse command line options
  switch (parseCommandLine(parser, &errorMessage)) {
  case CommandLineOk:
	  break;
  case CommandLineError:
	  fputs(qPrintable(errorMessage), stderr);
	  fputs("\n\n", stderr);
	  fputs(qPrintable(parser.helpText()), stderr);
	  return 1;
  case CommandLineVersionRequested:
	  printf("%s %s\n", qPrintable(QCoreApplication::applicationName()),
		  qPrintable(QCoreApplication::applicationVersion()));
	  return 0;
  case CommandLineHelpRequested:
	  parser.showHelp();
	  Q_UNREACHABLE();
  }

  // only one application is allowed so delete the core application
  // once cmdline parsing is done
  delete coreApp;



718 719 720 721
#ifdef WIN32
  //attach a console if necessary
  attachConsole();
#endif
Dirk Wilden's avatar
Dirk Wilden committed
722

723
#ifndef NO_CATCH_SIGSEGV
Dirk Wilden's avatar
Dirk Wilden committed
724 725
  // Set a handler for segfaults
  std::signal(SIGSEGV, segfaultHandling);
726
#endif
Dirk Wilden's avatar
Dirk Wilden committed
727

Jan Möbius's avatar
Jan Möbius committed
728
  OpenFlipper::Options::windowTitle(TOSTRING(PRODUCT_STRING)" v" + OpenFlipper::Options::coreVersion());
729

730
  if ( !OpenFlipper::Options::nogui() ) {
731

732
    // OpenGL check
733
    QApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
734
    QApplication::setColorSpec( QApplication::CustomColor );
735

736 737
    // Try creating a valid OpenGL context
    /******************************/
738

739 740
    // Get a valid context format
    QSurfaceFormat resultFormat = getContextFormat();
741

742 743 744 745 746
    // Set temporary(!) OpenGL settings
    OpenFlipper::Options::samples(resultFormat.samples(), true);
    OpenFlipper::Options::glStereo(resultFormat.stereo(), true);
    OpenFlipper::Options::glVersion(resultFormat.version(), true);
    OpenFlipper::Options::coreProfile(resultFormat.profile() == QSurfaceFormat::CoreProfile, true);
747

748 749
    // Create the actual context
    QSurfaceFormat::setDefaultFormat(resultFormat);
750
    QApplication app(argc, argv);
751 752 753
    QOffscreenSurface *surface = new QOffscreenSurface();
    surface->create();

754
    // Make the globally shared OpenGLContext current
755
    QOpenGLContext::globalShareContext()->makeCurrent(surface);
756
    /******************************/
757 758


759
    // Check whether there is OpenGL support. If not, return.
760 761 762 763
    if ( !QGLFormat::hasOpenGL() ) {
      std::cerr << "This system has no OpenGL support.\n";
      return -1;
    }
764

765 766
    // create core ( this also reads the ini files )
    Core * w = new Core( );
767 768 769
#ifdef PYTHON_ENABLED
    setCorePointer(w);
#endif
770

771
    QString tLang = OpenFlipperSettings().value("Core/Language/Translation","en_US").toString();
772 773 774 775

    if (tLang == "locale")
      tLang = QLocale::system().name();

776 777
    // Install translator for qt internals
    QTranslator qtTranslator;
Jan Möbius's avatar
Jan Möbius committed
778
    qtTranslator.load("qt_" + tLang, QLibraryInfo::location(QLibraryInfo::TranslationsPath));
779 780 781
    app.installTranslator(&qtTranslator);
    
    // install translator for Core Application
782 783 784 785 786 787 788 789 790 791 792 793
    QString translationDir = OpenFlipper::Options::translationsDirStr() + QDir::separator();
    QDir dir(translationDir);
    dir.setFilter(QDir::Files);

    QFileInfoList list = dir.entryInfoList();

    for (int i = 0; i < list.size(); ++i) {
      QFileInfo fileInfo = list.at(i);

      if ( fileInfo.baseName().contains(tLang) ){
        QTranslator* myAppTranslator = new QTranslator();

794 795
        if ( myAppTranslator->load( fileInfo.filePath() ) )
        {    
796
          app.installTranslator(myAppTranslator);
797 798 799
        } else 
        {
  	        delete myAppTranslator;
800 801 802
        }
      }
     }
Jan's avatar
Jan committed
803 804 805 806

    #ifndef __APPLE__
    initGlew();
    #endif
807 808 809 810

    // After setting all Options from command line, build the real gui
    w->init();

811 812 813 814 815
    const QStringList positionalArguments = parser.positionalArguments();

    for ( auto file: positionalArguments ) {
      w->commandLineOpen(file, openPolyMeshes);
    }
816

817
    return app.exec();
818

819
  } else {
820

821
    QCoreApplication app(argc,argv);
822

823 824
    // create widget ( this also reads the ini files )
    Core * w = new Core( );
825

826 827 828 829 830

#ifdef PYTHON_ENABLED
    setCorePointer(w);
#endif

831 832
    // After setting all Options from command line, build the real gui
    w->init();
833

834 835 836 837 838
    const QStringList positionalArguments = parser.positionalArguments();

    for ( auto file: positionalArguments ) {
      w->commandLineOpen(file, openPolyMeshes);
    }
839

840
    return app.exec();
841 842 843 844
  }

  return 0;
}