[PATCH] st/mesa: only define GLSL 1.4 for compat if driver supports it

[Christian Gmeiner]

Currently GLSL 1.4 is defined for all gallium drivers even only
GLSL 1.2 is supported as seen on etnaviv.

Fixes 4560aad780b ("mesa: add GLSLVersionCompat constant")

Signed-off-by: Christian Gmeiner <christian.gmeiner at gmail.com>
---
 src/mesa/state_tracker/st_extensions.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 19ef736e5b..945ca3a16c 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -936,7 +936,11 @@ void st_init_extensions(struct pipe_screen *screen,
 
    /* Figure out GLSL support and set GLSLVersion to it. */
    consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
-   consts->GLSLVersionCompat = 140;
+
+   if (consts->GLSLVersion >= 140)
+      consts->GLSLVersionCompat = 140;
+   else
+      consts->GLSLVersionCompat = 120;
 
    _mesa_override_glsl_version(consts);
 
-- 
2.17.0