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* i965: Combine both gl_PatchVerticesIn lowering passes.Kenneth Graunke2018-07-261-6/+62
| | | | | | | | | | | | | | | | | | Until now, we had separate passes for lowering gl_PatchVerticesIn to a statically known constant (for TES inputs when linked against a TCS), and a uniform in the other cases. Annoyingly, one had to be run before nir_lower_system_values, and the other afterward. This simplified the passes, but made life painful for the callers. This patch combines both into a single pass. If you give it a non-zero static count, it uses that. If you give it Mesa state slots, it turns it back into a built-in uniform. Otherwise, it does nothing. This also moves the i965 uniform lowering out to shared code. v2: Make token arrays const. Reviewed-by: Eric Anholt <[email protected]>
* nir: Add a pass to lower TES patch_vertices intrinsics to a constant.Kenneth Graunke2017-01-101-0/+53
In Vulkan, we always have both the TCS and TES available in the same pipeline, so we can simply use the TCS OutputVertices execution mode value as the TES PatchVertices built-in. For GLSL, we handle this in the linker. But we could use this pass in the case when both TCS and TES are linked together, if we wanted. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Dave Airlie <[email protected]> Reviewed-by: Iago Toral Quiroga <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>