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nir: Add ability to count emitted GS primitives.

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Add an option to nir_lower_gs_intrinsics which tells it to track
the number of emitted primitives, not just vertices. Additionally,
also make it per-stream.

Also rename the set_vertex_count intrinsic to
set_vertex_and_primitive_count.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6964>
This commit is contained in:
Timur Kristóf
2020-06-08 12:16:13 +02:00
parent 73dd86c421
commit 2be99012e9
9 changed files with 77 additions and 28 deletions
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src/compiler/nir/nir_intrinsics.py
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@@ -352,7 +352,8 @@ intrinsic("end_primitive", indices=[STREAM_ID])
# unsigned integer source.
intrinsic("emit_vertex_with_counter", src_comp=[1], indices=[STREAM_ID])
intrinsic("end_primitive_with_counter", src_comp=[1], indices=[STREAM_ID])
intrinsic("set_vertex_count", src_comp=[1])
# Contains the final total vertex and primitive counts
intrinsic("set_vertex_and_primitive_count", src_comp=[1, 1], indices=[STREAM_ID])
# Atomic counters
#