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nir/lower_io: Introduce nir_store_per_vertex_output intrinsics.

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Similar to nir_load_per_vertex_input, but for outputs.  This is not
useful in geometry shaders, but will be useful in tessellation shaders.

v2: Change stage_uses_per_vertex_outputs() to is_per_vertex_output(),
    taking a nir_variable (requested by Jason Ekstrand).

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
This commit is contained in:
Kenneth Graunke
2015-10-02 00:11:01 -07:00
parent 0df452cd0d
commit c51d7d5fe3
3 changed files with 26 additions and 5 deletions
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src/glsl/nir/nir_intrinsics.h
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@@ -272,6 +272,7 @@ LOAD(ssbo, 1, 1, NIR_INTRINSIC_CAN_ELIMINATE)
false, 0, 0, 1 + extra_indices, flags)
STORE(output, 0, 0, 0, 0)
STORE(per_vertex_output, 1, 1, 0, 0)
STORE(ssbo, 1, 1, 1, 0)
LAST_INTRINSIC(store_ssbo_indirect)