bool OculusRift::attachToWindow( const ci::app::WindowRef& window )
{
if( ! mHmd )
return false;
if( ! isValid( window ) )
return false;
if( isDesktopExtended() ) {
mImpl = std::unique_ptr<ExtendedModeImpl>( new ExtendedModeImpl{ this } );
} else {
mImpl = std::unique_ptr<DirectModeImpl>( new DirectModeImpl{ this } );
}
if( ! mImpl->initialize( window ) )
return false;
// Override the window's startDraw() and finishDraw() methods, so we can inject our own code.
RendererGlRef rendererGl = std::dynamic_pointer_cast<RendererGl>( window->getRenderer() );
if( rendererGl ) {
rendererGl->setStartDrawFn( std::bind( &OculusRift::startDrawFn, this, std::placeholders::_1 ) );
rendererGl->setFinishDrawFn( std::bind( &OculusRift::finishDrawFn, this, std::placeholders::_1 ) );
}
else {
throw std::runtime_error( "OculusRift can only be used in combination with RendererGl." );
}
// Connect to the window close event, so we can properly destroy our HMD.
window->getSignalClose().connect( std::bind( [&]( ovrHmd hmd ) { assert( hmd == mHmd ); detachFromWindow(); }, mHmd ) );
ovrHmd_ConfigureTracking( mHmd, mTrackingCaps, 0 );
ovrGLConfig cfg;
cfg.OGL.Header.API = ovrRenderAPI_OpenGL;
cfg.OGL.Header.BackBufferSize = mHmd->Resolution;
cfg.OGL.Header.Multisample = 1; // TODO: support multi-sampling
#if defined( CINDER_MSW )
cfg.OGL.Window = static_cast<HWND>( window->getNative() );
cfg.OGL.DC = window->getDc();
#endif
if( ! ovrHmd_ConfigureRendering( mHmd, &cfg.Config, mDistortionCaps, mHmd->MaxEyeFov, mEyeRenderDesc ) ) {
throw std::runtime_error( "Failed to configure rendering." );
}
updateHmdSettings();
mWindow = window;
return true;
}
