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/*=========================================================================
Program: ParaView
Module: vtkPVOpenGLExtensionsInformation.cxx
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkPVOpenGLExtensionsInformation.h"
#ifdef VTKGL2
#else
# include "vtkOpenGLExtensionManager.h"
#endif
#include "vtkClientServerStream.h"
#include "vtkObjectFactory.h"
#include "vtkProcessModule.h"
#include "vtkPVDisplayInformation.h"
#include "vtkRenderWindow.h"
#include "vtkSmartPointer.h"
#include "vtkNew.h"
#include <string>
#include <vector>
#include <vtksys/SystemTools.hxx>
#include <set>
#include <algorithm>
#include <iterator>
//-----------------------------------------------------------------------------
class vtkPVOpenGLExtensionsInformationInternal
{
public:
typedef std::set<std::string> SetOfStrings;
SetOfStrings Extensions;
};
//-----------------------------------------------------------------------------
vtkStandardNewMacro(vtkPVOpenGLExtensionsInformation);
//-----------------------------------------------------------------------------
vtkPVOpenGLExtensionsInformation::vtkPVOpenGLExtensionsInformation()
{
this->Internal = new vtkPVOpenGLExtensionsInformationInternal;
this->RootOnly = 1;
}
//-----------------------------------------------------------------------------
vtkPVOpenGLExtensionsInformation::~vtkPVOpenGLExtensionsInformation()
{
delete this->Internal;
}
//-----------------------------------------------------------------------------
void vtkPVOpenGLExtensionsInformation::CopyFromObject(vtkObject* obj)
{
this->Internal->Extensions.clear();
vtkProcessModule* pm = vtkProcessModule::GetProcessModule();
if (!pm)
{
vtkErrorMacro("No vtkProcessModule!");
return;
}
vtkSmartPointer<vtkPVDisplayInformation> di =
vtkSmartPointer<vtkPVDisplayInformation>::New();
di->CopyFromObject(pm);
if (!di->GetCanOpenDisplay())
{
return;
}
vtkRenderWindow* renWin = vtkRenderWindow::SafeDownCast(obj);
if (!renWin)
{
vtkErrorMacro("Cannot downcast to render window.");
return;
}
std::vector<std::string> extensions;
#ifdef VTKGL2
// FIXME: Add something to pass the equivalent string here.
#else
vtkNew<vtkOpenGLExtensionManager> mgr;
mgr->SetRenderWindow(renWin);
mgr->Update();
vtksys::SystemTools::Split(mgr->GetExtensionsString(),
extensions, ' ');
#endif
this->Internal->Extensions.clear();
std::vector<std::string>::iterator iter;
for (iter = extensions.begin(); iter != extensions.end(); iter++)
{
this->Internal->Extensions.insert(*iter);
}
}
//-----------------------------------------------------------------------------
void vtkPVOpenGLExtensionsInformation::AddInformation(vtkPVInformation* pvinfo)
{
if (!pvinfo)
{
return;
}
vtkPVOpenGLExtensionsInformation* info =
vtkPVOpenGLExtensionsInformation::SafeDownCast(pvinfo);
if (!info)
{
vtkErrorMacro("Could not downcast to vtkPVOpenGLExtensionsInformation.");
return;
}
std::set<std::string> setSelf = this->Internal->Extensions;
std::set<std::string> &setOther = info->Internal->Extensions;
this->Internal->Extensions.clear();
std::set_intersection(setSelf.begin(), setSelf.end(),
setOther.begin(), setOther.end(),
std::inserter(this->Internal->Extensions, this->Internal->Extensions.begin()));
}
//-----------------------------------------------------------------------------
void vtkPVOpenGLExtensionsInformation::CopyToStream(vtkClientServerStream* css)
{
css->Reset();
*css << vtkClientServerStream::Reply;
std::string data;
vtkPVOpenGLExtensionsInformationInternal::SetOfStrings::iterator iter;
for (iter = this->Internal->Extensions.begin();
iter != this->Internal->Extensions.end();
++iter)
{
data += (*iter) + " ";
}
*css << data.c_str();
*css << vtkClientServerStream::End;
}
//-----------------------------------------------------------------------------
void vtkPVOpenGLExtensionsInformation::CopyFromStream(
const vtkClientServerStream* css)
{
this->Internal->Extensions.clear();
const char* ext = 0;
if (!css->GetArgument(0, 0, &ext))
{
vtkErrorMacro("Error parsing extensions string from message.");
return;
}
std::vector<std::string> extensions;
vtksys::SystemTools::Split(ext, extensions, ' ');
std::vector<std::string>::iterator iter;
for (iter = extensions.begin(); iter != extensions.end(); ++iter)
{
this->Internal->Extensions.insert(*iter);
}
}
//-----------------------------------------------------------------------------
bool vtkPVOpenGLExtensionsInformation::ExtensionSupported(const char* ext)
{
vtkPVOpenGLExtensionsInformationInternal::SetOfStrings::iterator iter
= this->Internal->Extensions.find(ext);
return (iter != this->Internal->Extensions.end());
}
//-----------------------------------------------------------------------------
void vtkPVOpenGLExtensionsInformation::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "Supported Extensions: " << endl;
vtkPVOpenGLExtensionsInformationInternal::SetOfStrings::iterator iter;
for (iter = this->Internal->Extensions.begin();
iter != this->Internal->Extensions.end();
++iter)
{
os << indent.GetNextIndent() << *iter << endl;
}
}
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