renderdoc/qrenderdoc/Code/qrenderdoc.cpp

/******************************************************************************
 * The MIT License (MIT)
 *
 * Copyright (c) 2016-2017 Baldur Karlsson
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 ******************************************************************************/

#include <QApplication>
#include <QDir>
#include <QFileInfo>
#include <QRegularExpression>
#include <QRegularExpressionMatch>
#include <QStandardPaths>
#include "Code/CaptureContext.h"
#include "Code/QRDUtils.h"
#include "Code/Resources.h"
#include "Windows/MainWindow.h"

#if defined(Q_OS_LINUX)

#if defined(RENDERDOC_SUPPORT_GL)

// symbol defined in libGL but not librenderdoc.
// Forces link of libGL after renderdoc (otherwise all symbols would
// be resolved and libGL wouldn't link, meaning dlsym(RTLD_NEXT) would fai
extern "C" void glXWaitX();

#endif

#if defined(RENDERDOC_SUPPORT_GLES)

// symbol defined in libEGL but not in librenderdoc.
// Forces link of libEGL.
extern "C" int eglWaitGL(void);

#endif

void linuxlibGLhack()
{
  volatile bool never_run = false;

#if defined(RENDERDOC_SUPPORT_GL)

  if(never_run)
    glXWaitX();

#endif

#if defined(RENDERDOC_SUPPORT_GLES)

  if(never_run)
    eglWaitGL();

#endif
}

#else

void linuxlibGLhack()
{
}

#endif

void sharedLogOutput(QtMsgType type, const QMessageLogContext &context, const QString &msg)
{
  LogMessageType logtype = eLogType_Comment;

  switch(type)
  {
    case QtDebugMsg: logtype = eLogType_Debug; break;
    case QtInfoMsg: logtype = eLogType_Comment; break;
    case QtWarningMsg: logtype = eLogType_Warning; break;
    case QtCriticalMsg: logtype = eLogType_Error; break;
    case QtFatalMsg: logtype = eLogType_Fatal; break;
  }

  RENDERDOC_LogMessage(logtype, "QTRD", context.file, context.line, msg.toUtf8().data());
}

int main(int argc, char *argv[])
{
  qInstallMessageHandler(sharedLogOutput);

  linuxlibGLhack();

  qInfo() << "QRenderDoc initialising.";

  QString filename = "";
  bool temp = false;

  for(int i = 0; i < argc; i++)
  {
    if(!QString::compare(argv[i], "--tempfile", Qt::CaseInsensitive))
      temp = true;
  }

  for(int i = 0; i < argc; i++)
  {
    if(!QString::compare(argv[i], "--install_vulkan_layer") && i + 1 < argc)
    {
      if(!QString::compare(argv[i + 1], "root"))
        RENDERDOC_UpdateVulkanLayerRegistration(true);
      else
        RENDERDOC_UpdateVulkanLayerRegistration(false);
      return 0;
    }
  }

  QString remoteHost = "";
  uint remoteIdent = 0;

  for(int i = 0; i + 1 < argc; i++)
  {
    if(!QString::compare(argv[i], "--remoteaccess", Qt::CaseInsensitive))
    {
      QRegularExpression regexp("^([a-zA-Z0-9_-]+:)?([0-9]+)$");

      QRegularExpressionMatch match = regexp.match(argv[i + 1]);

      if(match.hasMatch())
      {
        QString host = match.captured(1);

        if(host.length() > 0 && host[host.length() - 1] == ':')
          host.chop(1);

        bool ok = false;
        uint32_t ident = match.captured(2).toUInt(&ok);

        if(ok)
        {
          remoteHost = host;
          remoteIdent = ident;
        }
      }
    }
  }

  if(argc > 1)
  {
    filename = argv[argc - 1];
    QFileInfo checkFile(filename);
    if(!checkFile.exists() || !checkFile.isFile())
      filename = "";
  }

  argc += 2;

  char **argv_mod = new char *[argc];

  for(int i = 0; i < argc - 2; i++)
    argv_mod[i] = argv[i];

  char arg[] = "-platformpluginpath";
  QString path = QFileInfo(argv[0]).absolutePath();
  QByteArray pathChars = path.toUtf8();

  argv_mod[argc - 2] = arg;
  argv_mod[argc - 1] = pathChars.data();

  QApplication application(argc, argv_mod);

  {
    PersistantConfig config;

    {
      QString configPath = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);
      QDir dir(configPath);

      if(!dir.exists())
        dir.mkpath(configPath);
    }

    QString configFilename = CaptureContext::ConfigFile("UI.config");

    if(!config.Load(configFilename))
    {
      RDDialog::critical(
          NULL, "Error loading config",
          QString(
              "Error loading config file\n%1\nA default config is loaded and will be saved out.")
              .arg(configFilename));
    }

    config.SetupFormatting();

    Resources::Initialise();

    GUIInvoke::init();

    CaptureContext ctx(filename, remoteHost, remoteIdent, temp, config);

    while(ctx.isRunning())
    {
      application.processEvents(QEventLoop::WaitForMoreEvents);
      QCoreApplication::sendPostedEvents();
    }

    config.Save();
  }

  delete[] argv_mod;

  return 0;
}