b4cd40cf7c
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14928 16af8721-9629-0410-8352-f15c8da7e697
86 lines
2.6 KiB
C++
86 lines
2.6 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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#ifndef OSG_CLIPCONTROL
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#define OSG_CLIPCONTROL 1
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#include <osg/StateAttribute>
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#ifndef GL_VERSION_4_5
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#define GL_NEGATIVE_ONE_TO_ONE 0x935E
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#define GL_ZERO_TO_ONE 0x935F
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#endif
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namespace osg {
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/** Encapsulate OpenGL glClipControl functions.
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*/
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class OSG_EXPORT ClipControl : public StateAttribute
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{
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public :
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enum Origin
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{
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LOWER_LEFT = GL_LOWER_LEFT,
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UPPER_LEFT = GL_UPPER_LEFT
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};
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enum DepthMode
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{
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NEGATIVE_ONE_TO_ONE = GL_NEGATIVE_ONE_TO_ONE,
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ZERO_TO_ONE = GL_ZERO_TO_ONE
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};
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ClipControl(Origin origin=LOWER_LEFT, DepthMode depthMode=NEGATIVE_ONE_TO_ONE);
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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ClipControl(const ClipControl& clipControl,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
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META_StateAttribute(osg, ClipControl, CLIPCONTROL);
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/** return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.*/
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virtual int 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_Parameter macros below.
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COMPARE_StateAttribute_Types(ClipControl,sa)
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// compare each parameter in turn against the rhs.
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COMPARE_StateAttribute_Parameter(_origin)
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COMPARE_StateAttribute_Parameter(_depthMode)
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return 0; // passed all the above comparison macros, must be equal.
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}
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void setOrigin(Origin origin) { _origin = origin; }
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Origin getOrigin() const { return _origin; }
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void setDepthMode(DepthMode depthMode) { _depthMode = depthMode; }
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DepthMode getDepthMode() const { return _depthMode; }
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virtual void apply(State& state) const;
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protected:
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virtual ~ClipControl();
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Origin _origin;
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DepthMode _depthMode;
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};
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}
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#endif
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