From 9909eff0c8119ece33422ac6da3d9be6efc593a8 Mon Sep 17 00:00:00 2001
From: Erik Faye-Lund <erik.faye-lund@collabora.com>
Date: Fri, 26 Aug 2022 13:12:11 +0200
Subject: [PATCH] zink: expose demote when supported

This enables GL_EXT_demote_to_helper_invocation on Zink.

Reviewed-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18272>
---
 src/gallium/drivers/zink/zink_screen.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gallium/drivers/zink/zink_screen.c b/src/gallium/drivers/zink/zink_screen.c
index 3da79e21007..20d081d8aca 100644
--- a/src/gallium/drivers/zink/zink_screen.c
+++ b/src/gallium/drivers/zink/zink_screen.c
@@ -577,6 +577,10 @@ zink_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
       if (screen->info.have_EXT_shader_subgroup_ballot)
          return true;
       return false;
+
+   case PIPE_CAP_DEMOTE_TO_HELPER_INVOCATION:
+      return screen->info.have_EXT_shader_demote_to_helper_invocation;
+
    case PIPE_CAP_SAMPLE_SHADING:
       return screen->info.feats.features.sampleRateShading;