From af9e537be3df89fef046c827fc83acbe2199107a Mon Sep 17 00:00:00 2001
From: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Date: Fri, 2 Jun 2017 17:52:48 +0200
Subject: mesa: only emit _NEW_MULTISAMPLE when sample mask changes
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We usually check that given parameters are different before
updating the state.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
---
 src/mesa/main/multisample.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mesa/main/multisample.c b/src/mesa/main/multisample.c
index f0e7a611805..16fe2b7ced6 100644
--- a/src/mesa/main/multisample.c
+++ b/src/mesa/main/multisample.c
@@ -119,6 +119,9 @@ _mesa_SampleMaski(GLuint index, GLbitfield mask)
       return;
    }
 
+   if (ctx->Multisample.SampleMaskValue == mask)
+      return;
+
    FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
    ctx->Multisample.SampleMaskValue = mask;
 }
-- 
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