Kenneth Graunke <kenn...@whitecape.org> writes: > Hello! > > This patch series bumps the kernel requirement to 3.6 for Gen6+, > meaning that we actually get to rely on hardware context support. > That's a little painful, but even Debian ships 3.8 now, and this > isn't going to make it into an actual release for several more > months. > > It then splits our query code into Gen4-5 and Gen6+ versions. The new > Gen6+ version is a lot simpler since hardware contexts guarantee that > our statistics registers don't get polluted with data from other > programs running on the system. It should be more efficient, which > may help games like Minecraft (though I haven't measured). > > Finally, it implements the GL_PRIMITIVES_GENERATED and > GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN queries via hardware counters > rather than manually counting on the CPU. This paves the way for > geometry shader support (which can output multiple primitives, breaking > our CPU-side tracking), and should allow us to enable hardware primitive > restart in a few more cases once a few more things are tidied. > > The next step is to eliminate the use of SOL reset and save/restore the > transform feedback offsets directly. Then we can turn on hardware > primitive restart more aggressively and implement a few more transform > feedback extensions.
Uncommented patches, or obvious changes to the commented patches are: Reviewed-by: Eric Anholt <e...@anholt.net>
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