From 096c5aa34a835d66b0cb5d83cc513980113a8e74 Mon Sep 17 00:00:00 2001
From: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Date: Mon, 20 Jun 2022 14:38:06 -0400
Subject: [PATCH] mesa: enforce pointsize exports if pointsize is being clamped
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min/max pointsize clamping affects the value that must be used,
meaning that it may not be 1.0

in the case where clamping changes the value from 1.0, ensure the shader
export path is used if attenuation isn't enabled

Acked-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17145>
---
 src/mesa/main/points.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mesa/main/points.c b/src/mesa/main/points.c
index ec0be2f25c1..367ee3a6317 100644
--- a/src/mesa/main/points.c
+++ b/src/mesa/main/points.c
@@ -39,7 +39,8 @@
 static void
 update_point_size_set(struct gl_context *ctx)
 {
-   ctx->PointSizeIsSet = ctx->Point.Size == 1.0 || ctx->Point._Attenuated;
+   float size = CLAMP(ctx->Point.Size, ctx->Point.MinSize, ctx->Point.MaxSize);
+   ctx->PointSizeIsSet = (size == 1.0 && ctx->Point.Size == 1.0) || ctx->Point._Attenuated;
 }
 
 /**