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90 lines
2.6 KiB
90 lines
2.6 KiB
/* -*-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_POLYGONMODE |
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#define OSG_POLYGONMODE 1 |
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#include <osg/StateAttribute> |
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#include <osg/GL> |
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#if defined(OSG_GLES1_AVAILABLE) || defined(OSG_GLES2_AVAILABLE) |
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#define GL_POINT 0x1B00 |
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#define GL_LINE 0x1B01 |
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#define GL_FILL 0x1B02 |
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#endif |
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namespace osg { |
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/** State Class for setting OpenGL's polygon culling mode. |
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*/ |
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class OSG_EXPORT PolygonMode : public StateAttribute |
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{ |
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public : |
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enum Mode { |
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POINT = GL_POINT, |
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LINE = GL_LINE, |
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FILL = GL_FILL |
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}; |
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enum Face { |
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FRONT_AND_BACK, |
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FRONT, |
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BACK |
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}; |
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PolygonMode(); |
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PolygonMode(Face face,Mode mode); |
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/ |
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PolygonMode(const PolygonMode& pm,const CopyOp& copyop=CopyOp::SHALLOW_COPY): |
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StateAttribute(pm,copyop), |
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_modeFront(pm._modeFront), |
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_modeBack(pm._modeBack) {} |
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META_StateAttribute(osg, PolygonMode, POLYGONMODE); |
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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(PolygonMode,sa) |
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// compare each parameter in turn against the rhs. |
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COMPARE_StateAttribute_Parameter(_modeFront) |
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COMPARE_StateAttribute_Parameter(_modeBack) |
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return 0; // passed all the above comparison macros, must be equal. |
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} |
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void setMode(Face face,Mode mode); |
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Mode getMode(Face face) const; |
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inline bool getFrontAndBack() const { return _modeFront==_modeBack; } |
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virtual void apply(State& state) const; |
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protected: |
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virtual ~PolygonMode(); |
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Mode _modeFront; |
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Mode _modeBack; |
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}; |
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} |
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#endif
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