OpenCL™ Developer Guide for Intel® Processor Graphics
2019 Update 4
Limitations of Shared Context with Respect to Extensions
Some potential implications of the shared context exist, for example, efficient zero-copy OpenGL* sharing is possible with the Intel® Graphics device, but makes you unable to create a shared context supporting this extension.
Refer to the
Intel® Code Builder for OpenCL™ API- User’s Guide
for the specific extensions description and their behavior with respect to shared context.