FGFS-4.1/OpenSceneGraph
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Added a bunch of files synched with 0.8.42

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This commit is contained in:
Don BURNS
2001-09-19 21:08:56 +00:00
parent fed86f3f03
commit e8f256a59d
446 changed files with 58397 additions and 10552 deletions
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151
src/osg/Point.cpp
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@@ -1,27 +1,26 @@
// Ideas and code borrowed from GLUT pointburst demo
// written by Mark J. Kilgard
// written by Mark J. Kilgard
#ifdef WIN32
#include <windows.h>
#endif
#include "osg/GL"
#include "osg/GLExtensions"
#include "osg/Point"
#include "osg/ExtensionSupported"
#include "osg/Input"
#include "osg/Output"
#include "osg/Notify"
using namespace osg;
// if extensions not defined by gl.h (or via glext.h) define them
// ourselves and allow the extensions to detectd at runtine using
// osg::isGLExtensionSupported().
#if defined(GL_SGIS_point_parameters) && !defined(GL_EXT_point_parameters)
/* Use the EXT point parameters interface for the SGIS implementation. */
# define GL_POINT_SIZE_MIN_EXT GL_POINT_SIZE_MIN_SGIS
# define GL_POINT_SIZE_MAX_EXT GL_POINT_SIZE_MAX_SGIS
# define GL_POINT_FADE_THRESHOLD_SIZE_EXT GL_POINT_FADE_THRESHOLD_SIZE_SGIS
# define GL_DISTANCE_ATTENUATION_EXT GL_DISTANCE_ATTENUATION_SGIS
# define glPointParameterfEXT glPointParameterfSGIS
# define glPointParameterfvEXT glPointParameterfvSGIS
# define GL_EXT_point_parameters 1
#endif
@@ -30,91 +29,73 @@ using namespace osg;
# define GL_POINT_SIZE_MAX_EXT 0x8127
# define GL_POINT_FADE_THRESHOLD_SIZE_EXT 0x8128
# define GL_DISTANCE_ATTENUATION_EXT 0x8129
# ifdef _WIN32
// Curse Microsoft for the insanity of wglGetProcAddress.
typedef void (APIENTRY * PFNGLPOINTPARAMETERFEXTPROC) (GLenum pname, GLfloat param);
typedef void (APIENTRY * PFNGLPOINTPARAMETERFVEXTPROC) (GLenum pname, const GLfloat *params);
# define GL_EXT_point_parameters 1
# endif
# define GL_EXT_point_parameters 1
#endif
#ifdef _WIN32
PFNGLPOINTPARAMETERFEXTPROC glPointParameterfEXT;
PFNGLPOINTPARAMETERFVEXTPROC glPointParameterfvEXT;
#ifndef PFNGLPOINTPARAMETERFEXTPROC
typedef void (APIENTRY * PFNGLPOINTPARAMETERFEXTPROC) (GLenum pname, GLfloat param);
#endif
#ifndef PFNGLPOINTPARAMETERFVEXTPROC
typedef void (APIENTRY * PFNGLPOINTPARAMETERFVEXTPROC) (GLenum pname, const GLfloat *params);
#endif
static int s_hasPointParameters;
PFNGLPOINTPARAMETERFEXTPROC s_PointParameterfEXT = NULL;
PFNGLPOINTPARAMETERFVEXTPROC s_PointParameterfvEXT = NULL;
Point::Point( void )
Point::Point()
{
_size = 1.0f; // TODO find proper default
_fadeThresholdSize = 1.0f; // TODO find proper default
_distanceAttenuation = Vec3(0.0f, 1.0f/5.f, 0.0f); // TODO find proper default
_size = 1.0f; // TODO find proper default
_fadeThresholdSize = 1.0f; // TODO find proper default
// TODO find proper default
_distanceAttenuation = Vec3(0.0f, 1.0f/5.f, 0.0f);
}
Point::~Point( void )
Point::~Point()
{
}
Point* Point::instance()
{
static ref_ptr<Point> s_point(new Point);
return s_point.get();
}
void Point::init_GL_EXT()
{
s_hasPointParameters =
ExtensionSupported("GL_SGIS_point_parameters") ||
ExtensionSupported("GL_EXT_point_parameters");
#ifdef _WIN32
if (s_hasPointParameters)
if (isGLExtensionSupported("GL_EXT_point_parameters"))
{
glPointParameterfEXT = (PFNGLPOINTPARAMETERFEXTPROC)
wglGetProcAddress("glPointParameterfEXT");
glPointParameterfvEXT = (PFNGLPOINTPARAMETERFVEXTPROC)
wglGetProcAddress("glPointParameterfvEXT");
s_PointParameterfEXT = (PFNGLPOINTPARAMETERFEXTPROC)
getGLExtensionFuncPtr("glPointParameterfEXT");
s_PointParameterfvEXT = (PFNGLPOINTPARAMETERFVEXTPROC)
getGLExtensionFuncPtr("glPointParameterfvEXT");
}
#endif
else if (isGLExtensionSupported("GL_SGIS_point_parameters"))
{
s_PointParameterfEXT = (PFNGLPOINTPARAMETERFEXTPROC)
getGLExtensionFuncPtr("glPointParameterfSGIS");
s_PointParameterfvEXT = (PFNGLPOINTPARAMETERFVEXTPROC)
getGLExtensionFuncPtr("glPointParameterfvSGIS");
}
}
void Point::enableSmooth( void )
{
glEnable( GL_POINT_SMOOTH );
}
void Point::disableSmooth( void )
{
glDisable( GL_POINT_SMOOTH );
}
void Point::setSize( float size )
void Point::setSize( const float size )
{
_size = size;
}
void Point::setFadeThresholdSize(float fadeThresholdSize)
void Point::setFadeThresholdSize(const float fadeThresholdSize)
{
_fadeThresholdSize = fadeThresholdSize;
}
void Point::setDistanceAttenuation(const Vec3& distanceAttenuation)
{
_distanceAttenuation = distanceAttenuation;
}
void Point::apply( void )
void Point::apply(State&) const
{
glPointSize(_size);
#if GL_EXT_point_parameters
static bool s_gl_ext_init=false;
if (!s_gl_ext_init)
@@ -123,56 +104,8 @@ void Point::apply( void )
init_GL_EXT();
}
if (s_hasPointParameters)
{
glPointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT, (const GLfloat*)&_distanceAttenuation);
glPointParameterfEXT(GL_POINT_FADE_THRESHOLD_SIZE_EXT, _fadeThresholdSize);
}
#endif
if (s_PointParameterfvEXT) s_PointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT, (const GLfloat*)&_distanceAttenuation);
if (s_PointParameterfEXT) s_PointParameterfEXT(GL_POINT_FADE_THRESHOLD_SIZE_EXT, _fadeThresholdSize);
}
bool Point::readLocalData(Input& fr)
{
bool iteratorAdvanced = false;
float data;
if (fr[0].matchWord("size") && fr[1].getFloat(data))
{
_size = data;
fr+=2;
iteratorAdvanced = true;
}
if (fr[0].matchWord("fade_threshold_size") && fr[1].getFloat(data))
{
_fadeThresholdSize = data;
fr+=2;
iteratorAdvanced = true;
}
Vec3 distAtten;
if (fr[0].matchWord("distance_attenuation") &&
fr[1].getFloat(distAtten[0]) && fr[2].getFloat(distAtten[1]) && fr[3].getFloat(distAtten[2]))
{
_distanceAttenuation = distAtten;
fr+=4;
iteratorAdvanced = true;
}
return iteratorAdvanced;
}
bool Point::writeLocalData(Output& fw)
{
fw.indent() << "size " << _size << endl;
fw.indent() << "fade_threshold_size " << _fadeThresholdSize << endl;
fw.indent() << "distance_attenuation " << _distanceAttenuation << endl;
return true;
}