e31f682451
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14584 16af8721-9629-0410-8352-f15c8da7e697
110 lines
3.3 KiB
C++
110 lines
3.3 KiB
C++
/* -*-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 {
|
|
|
|
/** Multisample - encapsulates the OpenGL Multisample state.*/
|
|
class OSG_EXPORT Multisample : public StateAttribute
|
|
{
|
|
public :
|
|
|
|
enum Mode
|
|
{
|
|
FASTEST = GL_FASTEST,
|
|
NICEST = GL_NICEST,
|
|
DONT_CARE = GL_DONT_CARE
|
|
};
|
|
|
|
Multisample();
|
|
|
|
/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
|
|
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);
|
|
|
|
/** return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.*/
|
|
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
|
|
|
|
|
|
|