[Mesa-dev] [PATCH 1/2] mesa: Add core support for the GL_AMD_performance_monitor extension.

[Eric Anholt]

Kenneth Graunke <kenneth at whitecape.org> writes:

> This provides an interface for applications (and OpenGL-based tools) to
> access GPU performance counters.  Since the exact performance counters
> available vary between vendors and hardware generations, the extension
> provides an API the application can use to get the names, types, and
> minimum/maximum values of all available counters.  Counters are also
> organized into groups.
>
> Applications create "performance monitor" objects, select the counters
> they want to track, and Begin/End monitoring, much like OpenGL's query
> API.  Multiple monitors can be in flight simultaneously.
>
> We chose not to implement the similar GL_INTEL_performance_queries
> extension because Intel has not bothered to publish a specification in
> the OpenGL registry.

performance_monitor.c seems to be missing.
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