2006-07-18 23:21:48 +08:00
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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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2003-01-22 00:45:36 +08:00
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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2002-09-19 18:30:15 +08:00
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#include <osg/GL>
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#include <osg/PolygonStipple>
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#include <osg/Notify>
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#include <algorithm>
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using namespace osg;
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static GLubyte defaultPolygonStippleMask[] =
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{
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99,
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0x44, 0x44, 0x44, 0x44, 0x99, 0x99, 0x99, 0x99
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};
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PolygonStipple::PolygonStipple()
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{
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setMask(defaultPolygonStippleMask);
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}
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PolygonStipple::PolygonStipple(const PolygonStipple& ps,const CopyOp& copyop):
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StateAttribute(ps,copyop)
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{
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setMask(ps.getMask());
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}
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PolygonStipple::~PolygonStipple()
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{
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}
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int PolygonStipple::compare(const StateAttribute& sa) const
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{
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// check the types are equal and then create the rhs variable
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// used by the COMPARE_StateAttribute_Paramter macro's below.
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COMPARE_StateAttribute_Types(PolygonStipple,sa)
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// compare each parameter in turn against the rhs.
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for(unsigned int i=0;i<128;++i)
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{
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if (_mask[i]<rhs._mask[i]) return -1;
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else if (_mask[i]>rhs._mask[i]) return 1;
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}
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return 0; // passed all the above comparison macro's, must be equal.
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}
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void PolygonStipple::setMask(const GLubyte* givenMask)
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{
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std::copy(givenMask,givenMask+128,_mask);
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}
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void PolygonStipple::apply(State&) const
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{
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glPolygonStipple(_mask);
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}
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