mesa: check for no state change in glPrimitiveRestartIndex()

Reviewed-by: José Fonseca <jfonseca@vmware.com>

diff --git a/src/mesa/main/varray.c b/src/mesa/main/varray.c
index 93f6fcd..39d3a27 100644 (file)
--- a/src/mesa/main/varray.c
+++ b/src/mesa/main/varray.c
@@ -1100,11 +1100,12 @@ _mesa_PrimitiveRestartIndex(GLuint index)
       return;
    }
 
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
-   FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   ctx->Array.RestartIndex = index;
+   if (ctx->Array.RestartIndex != index) {
+      FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+      ctx->Array.RestartIndex = index;
+   }
 }