FGFS-4.1/OpenSceneGraph
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Introduced the usage of GL_MAX_TEXTURE_IMAGE_UNITS where support in place of the check of GL_MAX_TEXTURE_UNITS.

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This commit is contained in:
Robert Osfield 2009-11-12 19:39:50 +00:00
parent 8b141567b9
commit d508934961
1 changed files with 13 additions and 2 deletions
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13
src/osg/Texture.cpp
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@ -2421,7 +2421,7 @@ void Texture::Extensions::setupGLExtensions(unsigned int contextID)
bool builtInSupport = OSG_GLES2_FEATURES || OSG_GL3_FEATURES;
_isMultiTexturingSupported = builtInSupport ||
_isMultiTexturingSupported = builtInSupport || OSG_GLES1_FEATURES ||
isGLExtensionOrVersionSupported( contextID,"GL_ARB_multitexture", 1.3f) ||
isGLExtensionOrVersionSupported(contextID,"GL_EXT_multitexture", 1.3f);
@ -2484,9 +2484,20 @@ void Texture::Extensions::setupGLExtensions(unsigned int contextID)
}
if( _isMultiTexturingSupported )
{
#if defined(OSG_GLES2_AVAILABLE) || defined(OSG_GL3_AVAILABLE)
glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS,&_numTextureUnits);
#else
if (osg::asciiToFloat(version)>=2.0)
{
glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS,&_numTextureUnits);
}
else
{
glGetIntegerv(GL_MAX_TEXTURE_UNITS,&_numTextureUnits);
}
#endif
}
else
{
_numTextureUnits = 1;