Multisample
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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.
*/
#ifndef OSG_MULTISAMPLE
#define OSG_MULTISAMPLE 1
#include <osg/GL>
#include <osg/StateAttribute>
#include <osg/ref_ptr>
#ifndef GL_ARB_multisample
#define GL_MULTISAMPLE_ARB 0x809D
#define GL_SAMPLE_ALPHA_TO_COVERAGE_ARB 0x809E
#define GL_SAMPLE_ALPHA_TO_ONE_ARB 0x809F
#define GL_SAMPLE_COVERAGE_ARB 0x80A0
#define GL_SAMPLE_BUFFERS_ARB 0x80A8
#define GL_SAMPLES_ARB 0x80A9
#define GL_SAMPLE_COVERAGE_VALUE_ARB 0x80AA
#define GL_SAMPLE_COVERAGE_INVERT_ARB 0x80AB
#define GL_MULTISAMPLE_BIT_ARB 0x20000000
#endif
#ifndef GL_NV_multisample_filter_hint
#define GL_MULTISAMPLE_FILTER_HINT_NV 0x8534
#endif
namespace osg {
class OSG_EXPORT Multisample : public StateAttribute
{
public :
enum Mode
{
FASTEST = GL_FASTEST,
NICEST = GL_NICEST,
DONT_CARE = GL_DONT_CARE
};
Multisample();
Multisample(const Multisample& trans,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
StateAttribute(trans,copyop),
_coverage(trans._coverage),
_invert(trans._invert),
_mode(trans._mode) {}
META_StateAttribute(osg, Multisample,MULTISAMPLE);
virtual int compare(const StateAttribute& sa) const
{
// check the types are equal and then create the rhs variable
// used by the COMPARE_StateAttribute_Parameter macros below.
COMPARE_StateAttribute_Types(Multisample,sa)
// compare each parameter in turn against the rhs.
COMPARE_StateAttribute_Parameter(_coverage)
COMPARE_StateAttribute_Parameter(_invert)
COMPARE_StateAttribute_Parameter(_mode)
return 0; // passed all the above comparison macros, must be equal.
}
void setSampleCoverage(float coverage, bool invert)
{
_coverage = coverage;
_invert = invert;
}
inline void setCoverage(float coverage) { _coverage=coverage; }
inline float getCoverage() const { return _coverage; }
inline void setInvert(bool invert) { _invert=invert; }
inline bool getInvert() const { return _invert; }
inline void setHint(Mode mode) { _mode = mode; }
inline Mode getHint() const { return _mode; }
virtual void apply(State& state) const;
protected :
virtual ~Multisample();
float _coverage;
bool _invert;
Mode _mode;
};
}
#endif
StateAttribute
COMPARE_StateAttribute_Parameter
#define COMPARE_StateAttribute_Parameter(parameter)
Definition StateAttribute:69
COMPARE_StateAttribute_Types
#define COMPARE_StateAttribute_Types(TYPE, rhs_attribute)
Definition StateAttribute:57
osg::CopyOp
Definition CopyOp:41
osg::CopyOp::SHALLOW_COPY
@ SHALLOW_COPY
Definition CopyOp:47
osg::Multisample::Multisample
Multisample(const Multisample &trans, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
Definition Multisample:56
osg::Multisample::getHint
Mode getHint() const
Definition Multisample:91
osg::Multisample::compare
virtual int compare(const StateAttribute &sa) const
Definition Multisample:65
osg::Multisample::setCoverage
void setCoverage(float coverage)
Definition Multisample:84
osg::Multisample::_invert
bool _invert
Definition Multisample:100
osg::Multisample::_coverage
float _coverage
Definition Multisample:99
osg::Multisample::apply
virtual void apply(State &state) const
osg::Multisample::setInvert
void setInvert(bool invert)
Definition Multisample:87
osg::Multisample::_mode
Mode _mode
Definition Multisample:101
osg::Multisample::~Multisample
virtual ~Multisample()
osg::Multisample::getInvert
bool getInvert() const
Definition Multisample:88
osg::Multisample::Mode
Mode
Definition Multisample:47
osg::Multisample::FASTEST
@ FASTEST
Definition Multisample:48
osg::Multisample::DONT_CARE
@ DONT_CARE
Definition Multisample:50
osg::Multisample::NICEST
@ NICEST
Definition Multisample:49
osg::Multisample::setHint
void setHint(Mode mode)
Definition Multisample:90
osg::Multisample::setSampleCoverage
void setSampleCoverage(float coverage, bool invert)
Definition Multisample:79
osg::Multisample::META_StateAttribute
META_StateAttribute(osg, Multisample, MULTISAMPLE)
osg::Multisample::getCoverage
float getCoverage() const
Definition Multisample:85
osg::Multisample::Multisample
Multisample()
osg::StateAttribute::StateAttribute
StateAttribute()
osg::StateAttribute::MULTISAMPLE
@ MULTISAMPLE
Definition StateAttribute:158
osg::State
Definition State:80
osg
Definition AlphaFunc:19
OSG_EXPORT
#define OSG_EXPORT
Definition osg/Export:39
ref_ptr