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draw: fix uses viewport index for tess eval shader 

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9401>
This commit is contained in:
Dave Airlie 2021-03-05 14:32:40 +10:00 committed by Marge Bot
parent cdffa3e114
commit 52dc22055f
1 changed files with 2 additions and 0 deletions
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2
src/gallium/auxiliary/draw/draw_context.c
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@ -995,6 +995,8 @@ draw_current_shader_uses_viewport_index(const struct draw_context *draw)
{
if (draw->gs.geometry_shader)
return draw->gs.geometry_shader->info.writes_viewport_index;
else if (draw->tes.tess_eval_shader)
return draw->tes.tess_eval_shader->info.writes_viewport_index;
return draw->vs.vertex_shader->info.writes_viewport_index;
}