glIsAsyncMarkerSGIX(3G) OpenGL Reference glIsAsyncMarkerSGIX(3G)
glIsAsyncMarkerSGIX - determine if a marker is reserved or in use
GLboolean glIsAsyncMarkerSGIX( GLuint marker )
marker Specifies a potential value for a reserved or in-use marker.
glIsAsyncMarkerSGIX is part of the SGIX_async extension. This extension
provides a framework within which particular sets of OpenGL commands can
become "asynchronous" via specific further OpenGL extensions. Currently
the SGIX_async_pixel extension is the only such defined extension.
A marker for asynchronous commands is "in use" if it is the current value
of GL_ASYNC_MARKER_SGIX, or if it is associated with any asynchronous
command that has been issued but has not been queried using
glFinishAsyncSGIX or glPollAsyncSGIX. A marker may be "reserved" via use
of the glGenAsyncMarkersSGIX command.
glIsAsyncMarkerSGIX returns 1 if marker identifies a marker that is
currently in use or reserved; it returns 0 otherwise.
GL_INVALID_OPERATION is generated if glIsAsyncMarkerSGIX is executed
between the execution of glBegin and the corresponding execution of
The SGIX_async and SGIX_async_pixel extensions are implemented only on
Octane2 VPro systems.
glAsyncMarkerSGIX, glDeleteAsyncMarkersSGIX, glFinishAsyncSGIX,
glGenAsyncMarkersSGIX, glPollAsyncSGIX, glDrawPixels, glGet,
glReadPixels, glTexImage1D, glTexImage2D, glTexImage3D, glTexSubImage1D,
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