[Mesa-dev] [PATCH] swr: support layer output in geometry shaders

[Cherniak, Bruce]

Reviewed-by: Bruce Cherniak <bruce.cherniak at intel.com>

> On Mar 5, 2017, at 3:24 PM, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
> 
> This makes bin/gl-3.2-layered-rendering-gl-layer-render fail only with
> 2DMS_ARRAY, which is expected given the lackluster MSAA support. However
> all the regular types pass.
> 
> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
> ---
> 
> Note - away from keys atm. Please push if you're happy with it.
> 
> src/gallium/drivers/swr/swr_shader.cpp | 2 ++
> 1 file changed, 2 insertions(+)
> 
> diff --git a/src/gallium/drivers/swr/swr_shader.cpp b/src/gallium/drivers/swr/swr_shader.cpp
> index 09d8145..09a0629 100644
> --- a/src/gallium/drivers/swr/swr_shader.cpp
> +++ b/src/gallium/drivers/swr/swr_shader.cpp
> @@ -391,6 +391,8 @@ BuilderSWR::swr_gs_llvm_emit_vertex(const struct lp_build_tgsi_gs_iface *gs_base
>           attribSlot = VERTEX_POINT_SIZE_SLOT;
>        else if (iface->info->output_semantic_name[attrib] == TGSI_SEMANTIC_PRIMID)
>           attribSlot = VERTEX_PRIMID_SLOT;
> +       else if (iface->info->output_semantic_name[attrib] == TGSI_SEMANTIC_LAYER)
> +          attribSlot = VERTEX_RTAI_SLOT;
> 
>        Value *vOffsetsAttrib =
>           ADD(vOffsets, MUL(vVertexSlot, VIMMED1((uint32_t)sizeof(simdvertex))));
> -- 
> 2.10.2
> 
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