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/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
/****************************************************************************
History
$Log: not supported by cvs2svn $
****************************************************************************/
#ifndef __VCG_SIMPLE_PIC
#define __VCG_SIMPLE_PIC
#include <vcg/math/matrix44.h>
namespace vcg {
template <class PixType>
class SimplePic
{public:
std::vector<PixType> img;
int sx,sy;
void Create(int tx,int ty)
{
sx=tx;sy=ty;
img.resize(sx*sy);
}
PixType &Pix(int x, int y) {return img[sx*y+x];}
void OpenGLSnap(GLenum format=0)
{
int vp[4];
glGetIntegerv( GL_VIEWPORT,vp ); // Lettura viewport
glPixelStorei( GL_PACK_ROW_LENGTH, 0);
glPixelStorei( GL_PACK_ALIGNMENT, 1);
int tx = vp[2];
int ty = vp[3];
Create(tx,ty);
GLenum mtype = 0;
if(format==0) {
format = GL_RGBA;
mtype = GL_UNSIGNED_BYTE;
}
if(format==GL_DEPTH_COMPONENT) {
format = GL_DEPTH_COMPONENT;
mtype = GL_FLOAT;
}
glReadPixels(vp[0],vp[1],vp[2],vp[3],format,mtype,(GLvoid *)&img[0]);
}
bool SavePPM( const char * filename )
{
FILE * fp = fopen(filename,"wb");
if(fp==0) return false;
fprintf(fp,"P6\n%d %d\n255\n",sx,sy);
for(int i=0;i<sx*sy;++i)
{
fwrite(&(img[i]),3,1,fp);
}
fclose(fp);
return true;
}
};
}
#endif // __VCG_MESH_VISIBILITY
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