FGFS-4.1/OpenSceneGraph
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Added support for per context extension string.

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Note, this required adding a unsigned int context ID to the osg::isGLUExtensionSupported(,)
and osg::isGLExtensionSupported(,) functions.  This may require reimplementation
of end user code to accomodate the new calling convention.
This commit is contained in:
Robert Osfield
2005-04-26 13:15:27 +00:00
parent 59ebf86dd0
commit a1bda0dab8
35 changed files with 191 additions and 162 deletions
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16
src/osg/Program.cpp
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@@ -39,9 +39,9 @@ using namespace osg;
///////////////////////////////////////////////////////////////////////////
// Extension function pointers for OpenGL v2.0
GL2Extensions::GL2Extensions()
GL2Extensions::GL2Extensions(unsigned int contextID)
{
setupGL2Extensions();
setupGL2Extensions(contextID);
}
@@ -268,15 +268,15 @@ void GL2Extensions::lowestCommonDenominator(const GL2Extensions& rhs)
}
void GL2Extensions::setupGL2Extensions()
void GL2Extensions::setupGL2Extensions(unsigned int contextID)
{
_glVersion = atof( (const char*)glGetString( GL_VERSION ) );
_glslLanguageVersion = 0.0f;
_isShaderObjectsSupported = osg::isGLExtensionSupported("GL_ARB_shader_objects");
_isVertexShaderSupported = osg::isGLExtensionSupported("GL_ARB_vertex_shader");
_isFragmentShaderSupported = osg::isGLExtensionSupported("GL_ARB_fragment_shader");
_isLanguage100Supported = osg::isGLExtensionSupported("GL_ARB_shading_language_100");
_isShaderObjectsSupported = osg::isGLExtensionSupported(contextID,"GL_ARB_shader_objects");
_isVertexShaderSupported = osg::isGLExtensionSupported(contextID,"GL_ARB_vertex_shader");
_isFragmentShaderSupported = osg::isGLExtensionSupported(contextID,"GL_ARB_fragment_shader");
_isLanguage100Supported = osg::isGLExtensionSupported(contextID,"GL_ARB_shading_language_100");
if( isGlslSupported() )
{
@@ -418,7 +418,7 @@ GL2Extensions*
GL2Extensions::Get(unsigned int contextID, bool createIfNotInitalized)
{
if (!s_extensions[contextID] && createIfNotInitalized)
s_extensions[contextID] = new GL2Extensions;
s_extensions[contextID] = new GL2Extensions(contextID);
return s_extensions[contextID].get();
}