485709f708
Moved the #defines into new include/osg/GLDefines Converted all GL2Extensions usage to GLExtensions usage git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14593 16af8721-9629-0410-8352-f15c8da7e697
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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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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#include <osg/Stencil>
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#include <osg/GLExtensions>
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#include <osg/State>
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#include <osg/Notify>
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using namespace osg;
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Stencil::Stencil()
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{
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// set up same defaults as glStencilFunc.
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_func = ALWAYS;
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_funcRef = 0;
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_funcMask = ~0u;
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// set up same defaults as glStencilOp.
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_sfail = KEEP;
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_zfail = KEEP;
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_zpass = KEEP;
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// set up same defaults as glStencilMask.
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_writeMask = ~0u;
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}
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Stencil::~Stencil()
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{
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}
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static Stencil::Operation validateOperation(const GLExtensions* extensions, Stencil::Operation op)
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{
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// only wrap requires validation
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if (op != Stencil::INCR_WRAP && op != Stencil::DECR_WRAP)
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return op;
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// wrap support
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if (extensions->isStencilWrapSupported)
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return op;
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else
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return op==Stencil::INCR_WRAP ? Stencil::INCR : Stencil::DECR;
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}
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void Stencil::apply(State& state) const
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{
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const GLExtensions* extensions = state.get<GLExtensions>();
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Operation sf = validateOperation(extensions, _sfail);
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Operation zf = validateOperation(extensions, _zfail);
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Operation zp = validateOperation(extensions, _zpass);
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glStencilFunc((GLenum)_func,_funcRef,_funcMask);
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glStencilOp((GLenum)sf,(GLenum)zf,(GLenum)zp);
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glStencilMask(_writeMask);
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}
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