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From Bob Kuehne, added osg::getGlVersion() and fixed a minor typo in Texture3D.

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This commit is contained in:
Robert Osfield
2006-03-08 16:11:54 +00:00
parent fa5ff9d169
commit 4fc4e60cc3
5 changed files with 19 additions and 5 deletions
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8
src/osg/GLExtensions.cpp
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@@ -28,6 +28,14 @@
#include <windows.h>
#endif
float osg::getGLVersionNumber()
{
// needs to be extended to do proper things with subversions like 1.5.1, etc.
char *versionstring = (char*) glGetString( GL_VERSION );
std::string vs( versionstring );
return( atof( vs.substr( 0, vs.find( " " ) ).c_str() ) );
}
bool osg::isGLExtensionSupported(unsigned int contextID, const char *extension)
{
typedef std::set<std::string> ExtensionSet;

4
src/osg/Texture3D.cpp
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@@ -439,7 +439,7 @@ void Texture3D::setExtensions(unsigned int contextID,Extensions* extensions)
Texture3D::Extensions::Extensions(unsigned int contextID)
{
setupGLExtenions(contextID);
setupGLExtensions(contextID);
}
Texture3D::Extensions::Extensions(const Extensions& rhs):
@@ -469,7 +469,7 @@ void Texture3D::Extensions::lowestCommonDenominator(const Extensions& rhs)
if (!rhs._gluBuild3DMipmaps) _gluBuild3DMipmaps = 0;
}
void Texture3D::Extensions::setupGLExtenions(unsigned int contextID)
void Texture3D::Extensions::setupGLExtensions(unsigned int contextID)
{
_isTexture3DFast = isGLExtensionSupported(contextID,"GL_EXT_texture3D");