From: Christian Gmeiner <christian.gmeiner@gmail.com>
Date: Wed, 16 May 2018 14:02:54 +0000 (+0200)
Subject: st/mesa: only define GLSL 1.4 for compat if driver supports it
X-Git-Tag: upstream/19.0.0~5022
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2eb3f794d90a2a1df7cd933ddeda5a61e671b6f4;p=platform%2Fupstream%2Fmesa.git

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

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

v1 -> v2:
 - use _min(..) as suggested by Lucas Stach and Michel Dänzer

Fixes: 4560aad780b ("mesa: add GLSLVersionCompat constant")
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
---

diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 19ef736..2d56a88 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -936,7 +936,7 @@ 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;
+   consts->GLSLVersionCompat = _min(consts->GLSLVersion, 140);
 
    _mesa_override_glsl_version(consts);