That graphics drivers are a mess internally says more about the insufficient resourcing to do it properly and cleanly and refactor than it does about the really rather trivial and well-understood APIs that the driver implements.
You think OpenGL and DirectX are "trivial"? I'm sorry, but an API that involves passing text strings of complete programs for the driver to compile, link, and asynchronously run on a vector coprocessor is not trivial to implement, not to mention the complex NUMA memory management going on.
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Not really.
That graphics drivers are a mess internally says more about the insufficient resourcing to do it properly and cleanly and refactor than it does about the really rather trivial and well-understood APIs that the driver implements.
You think OpenGL and DirectX are "trivial"? I'm sorry, but an API that involves passing text strings of complete programs for the driver to compile, link, and asynchronously run on a vector coprocessor is not trivial to implement, not to mention the complex NUMA memory management going on.