本文整理汇总了C++中AttributeList::front方法的典型用法代码示例。如果您正苦于以下问题：C++ AttributeList::front方法的具体用法？C++ AttributeList::front怎么用？C++ AttributeList::front使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类AttributeList的用法示例。
在下文中一共展示了AttributeList::front方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: XOpenDisplay
//.........这里部分代码省略.........
if (!_context)
{
OSG_NOTICE<<"Error: Unable to create OpenGL graphics context."<<std::endl;
XCloseDisplay( _display );
_display = 0;
_valid = false;
return;
}
#ifdef GLX_VERSION_1_3
// First try the regular glx extension if we have a new enough version available.
if (haveGLX1_3)
{
int nelements;
GLXFBConfig *fbconfigs = glXGetFBConfigs( _display, screen, &nelements );
for ( int i = 0; i < nelements; ++i )
{
int visual_id;
if ( glXGetFBConfigAttrib( _display, fbconfigs[i], GLX_VISUAL_ID, &visual_id ) == 0 )
{
if ( !_pbuffer && (unsigned int)visual_id == _visualInfo->visualid )
{
typedef std::vector <int> AttributeList;
AttributeList attributes;
attributes.push_back( GLX_PBUFFER_WIDTH );
attributes.push_back( _traits->width );
attributes.push_back( GLX_PBUFFER_HEIGHT );
attributes.push_back( _traits->height );
attributes.push_back( GLX_LARGEST_PBUFFER );
attributes.push_back( GL_TRUE );
attributes.push_back( 0L );
_pbuffer = glXCreatePbuffer(_display, fbconfigs[i], &attributes.front() );
_useGLX1_3 = true;
}
}
}
if (_pbuffer)
{
int iWidth = 0;
int iHeight = 0;
glXQueryDrawable(_display, _pbuffer, GLX_WIDTH , (unsigned int *)&iWidth);
glXQueryDrawable(_display, _pbuffer, GLX_HEIGHT , (unsigned int *)&iHeight);
if (_traits->width != iWidth || _traits->height != iHeight)
{
OSG_NOTICE << "PixelBufferX11::init(), pbuffer created with different size then requsted" << std::endl;
OSG_NOTICE << "\tRequested size (" << _traits->width << "," << _traits->height << ")" << std::endl;
OSG_NOTICE << "\tPbuffer size (" << iWidth << "," << iHeight << ")" << std::endl;
_traits->width = iWidth;
_traits->height = iHeight;
}
}
XFree( fbconfigs );
}
#endif
#ifdef GLX_SGIX_pbuffer
// If we still have no pbuffer but a capable display with the SGIX extension, try to use that
if (!_pbuffer && haveSGIX_pbuffer)
{
GLXFBConfigSGIX fbconfig = _glXGetFBConfigFromVisualSGIX( _display, _visualInfo );
typedef std::vector <int> AttributeList;
AttributeList attributes;