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
84 lines
2.4 KiB
C++
84 lines
2.4 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.
|
|
*/
|
|
|
|
#include <osg/GLExtensions>
|
|
#include <osg/GL>
|
|
#include <osg/PointSprite>
|
|
#include <osg/Point>
|
|
#include <osg/State>
|
|
#include <osg/buffered_value>
|
|
#include <osg/Notify>
|
|
|
|
using namespace osg;
|
|
|
|
PointSprite::PointSprite()
|
|
: _coordOriginMode(UPPER_LEFT)
|
|
{
|
|
}
|
|
|
|
PointSprite::~PointSprite()
|
|
{
|
|
}
|
|
|
|
int PointSprite::compare(const StateAttribute& sa) const
|
|
{
|
|
COMPARE_StateAttribute_Types(PointSprite,sa)
|
|
|
|
COMPARE_StateAttribute_Parameter(_coordOriginMode)
|
|
|
|
return 0; // passed all the above comparison macros, must be equal.
|
|
}
|
|
|
|
|
|
bool PointSprite::checkValidityOfAssociatedModes(osg::State& state) const
|
|
{
|
|
const GLExtensions* extensions = state.get<GLExtensions>();
|
|
bool modeValid = extensions->isPointSpriteSupported;
|
|
|
|
#if defined( OSG_GLES1_AVAILABLE ) //point sprites don't exist on es 2.0
|
|
state.setModeValidity(GL_POINT_SPRITE_OES, modeValid);
|
|
#else
|
|
state.setModeValidity(GL_POINT_SPRITE_ARB, modeValid);
|
|
#endif
|
|
|
|
return modeValid;
|
|
}
|
|
|
|
void PointSprite::apply(osg::State& state) const
|
|
{
|
|
const GLExtensions* extensions = state.get<GLExtensions>();
|
|
#if defined( OSG_GL3_AVAILABLE )
|
|
|
|
extensions->glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, _coordOriginMode);
|
|
|
|
#elif defined( OSG_GLES1_AVAILABLE ) //point sprites don't exist on es 2.0
|
|
|
|
if (!extensions->isPointSpriteSupported) return;
|
|
|
|
glTexEnvi(GL_POINT_SPRITE_OES, GL_COORD_REPLACE_OES, 1);
|
|
|
|
#elif defined( OSG_GL_FIXED_FUNCTION_AVAILABLE )
|
|
|
|
if (!extensions->isPointSpriteSupported) return;
|
|
|
|
glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, 1);
|
|
|
|
if (extensions->isPointSpriteCoordOriginSupported)
|
|
extensions->glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, _coordOriginMode);
|
|
|
|
#else
|
|
OSG_NOTICE<<"Warning: PointSprite::apply(State&) - not supported."<<std::endl;
|
|
|
|
#endif
|
|
}
|