From 7626ad8d6daad147bf9a1a82fa4c3ac9e2d3347c Mon Sep 17 00:00:00 2001
From: Marek Olšák <marek.olsak@amd.com>
Date: Sun, 22 Feb 2015 19:50:42 +0100
Subject: st/mesa: enable tessellation if the driver supports it

---
 src/mesa/state_tracker/st_extensions.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src')

diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 899442fe43e..dc5cdfd1fe7 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -747,6 +747,11 @@ void st_init_extensions(struct pipe_screen *screen,
 #endif
    }
 
+   if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
+                                PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
+      extensions->ARB_tessellation_shader = GL_TRUE;
+   }
+
    if (screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) {
       extensions->NV_primitive_restart = GL_TRUE;
    }
-- 
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