From: Marek Olšák <marek.olsak@amd.com>
Date: Sun, 22 Feb 2015 18:50:42 +0000 (+0100)
Subject: st/mesa: enable tessellation if the driver supports it
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7626ad8d6daad147bf9a1a82fa4c3ac9e2d3347c;p=mesa.git

st/mesa: enable tessellation if the driver supports it
---

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;
    }