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/******************************************************************************
* SOFA, Simulation Open-Framework Architecture, version 1.0 beta 4 *
* (c) 2006-2009 MGH, INRIA, USTL, UJF, CNRS *
* *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, or (at *
* your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, but WITHOUT *
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or *
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License *
* for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
*******************************************************************************
* SOFA :: Framework *
* *
* Authors: M. Adam, J. Allard, B. Andre, P-J. Bensoussan, S. Cotin, C. Duriez,*
* H. Delingette, F. Falipou, F. Faure, S. Fonteneau, L. Heigeas, C. Mendoza, *
* M. Nesme, P. Neumann, J-P. de la Plata Alcade, F. Poyer and F. Roy *
* *
* Contact information: contact@sofa-framework.org *
******************************************************************************/
#include <sofa/helper/gl/Capture.h>
#include <sofa/helper/io/ImageBMP.h>
#ifdef SOFA_HAVE_PNG
#include <sofa/helper/io/ImagePNG.h>
#endif
#include <cstdio>
#include <sys/types.h>
#include <sys/stat.h>
namespace sofa
{
namespace helper
{
namespace gl
{
Capture::Capture()
: prefix("capture"), counter(-1)
{
}
bool Capture::saveScreen(const std::string& filename, int compression_level)
{
#ifdef SOFA_HAVE_PNG
io::ImagePNG img;
#else
io::ImageBMP img;
#endif
GLint viewport[4];
glGetIntegerv(GL_VIEWPORT,viewport);
img.init(viewport[2],viewport[3],24);
glReadBuffer(GL_FRONT);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glReadPixels(viewport[0], viewport[1], viewport[2], viewport[3], GL_RGB, GL_UNSIGNED_BYTE, img.getData());
if (!img.save(filename, compression_level)) return false;
std::cout << "Saved "<<img.getWidth()<<"x"<<img.getHeight()<<" screen image to "<<filename<<std::endl;
glReadBuffer(GL_BACK);
return true;
}
std::string Capture::findFilename()
{
std::string filename;
char buf[32];
int c;
c = 0;
struct stat st;
do
{
++c;
sprintf(buf, "%04d",c);
filename = prefix;
filename += buf;
#ifdef SOFA_HAVE_PNG
filename += ".png";
#else
filename += ".bmp";
#endif
}
while (stat(filename.c_str(),&st)==0);
counter = c+1;
sprintf(buf, "%04d",c);
filename = prefix;
filename += buf;
#ifdef SOFA_HAVE_PNG
filename += ".png";
#else
filename += ".bmp";
#endif
return filename;
}
bool Capture::saveScreen(int compression_level)
{
return saveScreen(findFilename(), compression_level);
}
} // namespace gl
} // namespace helper
} // namespace sofa
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