DeferredShading_qt.cc

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*                              OpenFlipper                                   *
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/*===========================================================================*\
*                                                                            *
*   $Revision: 18127 $                                                       *
*   $LastChangedBy: moebius $                                                *
*   $Date: 2014-02-05 10:12:54 +0100 (Wed, 05 Feb 2014) $                     *
*                                                                            *
\*===========================================================================*/

#include "DeferredShading.hh"

#include <QGLFormat>
#include <QAction>
#include <QMenu>


QString DeferredShading::checkOpenGL() {
  // Get version and check
  QGLFormat::OpenGLVersionFlags flags = QGLFormat::openGLVersionFlags();
  if ( !flags.testFlag(QGLFormat::OpenGL_Version_3_2) )
    return QString("Insufficient OpenGL Version! OpenGL 3.2 or higher required");

  // Check extensions
  QString glExtensions = QString((const char*)glGetString(GL_EXTENSIONS));
  QString missing("");
  if ( !glExtensions.contains("GL_ARB_vertex_buffer_object") )
    missing += "GL_ARB_vertex_buffer_object extension missing\n";

#ifndef __APPLE__
  if ( !glExtensions.contains("GL_ARB_vertex_program") )
    missing += "GL_ARB_vertex_program extension missing\n";
#endif

  return missing;
}

QAction* DeferredShading::optionsAction() {
//  QAction * action = new QAction("DeferredShading Renderer Options" , this );
//
//   connect(action,SIGNAL(triggered( )),this,SLOT(reloadShaders( )));
//
//   return action;

  QMenu* menu = new QMenu("DeferredShading Renderer Options");

  // Recreate actionGroup
  QActionGroup* modeGroup = new QActionGroup( this );
  modeGroup->setExclusive( true );

  QAction * action = new QAction("0x MSAA" , modeGroup );
  action->setCheckable( true );
  action->setChecked(true);

  action = new QAction("2x MSAA" , modeGroup );
  action->setCheckable( true );

  action = new QAction("4x MSAA" , modeGroup );
  action->setCheckable( true );

  action = new QAction("8x MSAA" , modeGroup );
  action->setCheckable( true );


  menu->addActions(modeGroup->actions());

  connect(modeGroup,SIGNAL(triggered( QAction * )),this,SLOT(slotMSAASelection( QAction * )));

  return menu->menuAction();
}