- import another process's indirect rendering
( Display *dpy
GLXContextID contextID )
- Specifies the connection to the X server.
- Specifies a GLX rendering context.
creates a GLXContext given the XID of an existing
GLXContext. It may be used in place of glXCreateContext
, to share
another process's indirect rendering context.
Only the server-side context information can be shared between X clients;
client-side state, such as pixel storage modes, cannot be shared. Thus,
must allocate memory to store client-side
information. This memory is freed by calling glXFreeContextEXT
This call does not create a new XID. It merely makes an existing object
available to the importing client (Display *). Like any XID, it goes away when
the creating client drops its connection or the ID is explicitly deleted. Note
that this is when the XID goes away. The object goes away when the XID goes
away AND the context is not current to any thread.
refers to a direct rendering context then no error is
generated but glXImportContextEXT
is part of the EXT_import_context
not part of the core GLX command set. If GLX_EXT_import_context
included in the string returned by glXQueryExtensionsString
called with argument GLX_EXTENSIONS
is generated if contextID
does not refer to a valid