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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* 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
* OpenSceneGraph Public License for more details.
*/
#include <osg/GL>
#include <osg/PolygonStipple>
#include <osg/Notify>
#include <algorithm>
using namespace osg;
static GLubyte defaultPolygonStippleMask[] =
{
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99
};
PolygonStipple::PolygonStipple()
{
setMask(defaultPolygonStippleMask);
}
PolygonStipple::PolygonStipple(const GLubyte* mask)
{
setMask(mask);
}
PolygonStipple::PolygonStipple(const PolygonStipple& ps,const CopyOp& copyop):
StateAttribute(ps,copyop)
{
setMask(ps.getMask());
}
PolygonStipple::~PolygonStipple()
{
}
int PolygonStipple::compare(const StateAttribute& sa) const
{
// check the types are equal and then create the rhs variable
// used by the COMPARE_StateAttribute_Parameter macro's below.
COMPARE_StateAttribute_Types(PolygonStipple,sa)
// compare each parameter in turn against the rhs.
for(unsigned int i=0;i<128;++i)
{
if (_mask[i]<rhs._mask[i]) return -1;
else if (_mask[i]>rhs._mask[i]) return 1;
}
return 0; // passed all the above comparison macro's, must be equal.
}
void PolygonStipple::setMask(const GLubyte* givenMask)
{
std::copy(givenMask,givenMask+128,_mask);
}
void PolygonStipple::apply(State&) const
{
glPolygonStipple(_mask);
}
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