Mesa (master): docs: document MESA_DEBUG=context

[Brian Paul]

Module: Mesa
Branch: master
Commit: 2acfd364798fcefe09acffabb106c9732d403e6c
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=2acfd364798fcefe09acffabb106c9732d403e6c

Author: Brian Paul <brianp at vmware.com>
Date:   Thu Nov 17 07:20:32 2016 -0700

docs: document MESA_DEBUG=context

Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>
Reviewed-by: Eric Engestrom <eric.engestrom at imgtec.com>

---

 docs/envvars.html | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/docs/envvars.html b/docs/envvars.html
index af1a30c..5dd7bab 100644
--- a/docs/envvars.html
+++ b/docs/envvars.html
@@ -60,6 +60,8 @@ sometimes be useful for debugging end-user issues.
      <li>flush - flush after each drawing command</li>
      <li>incomplete_tex - extra debug messages when a texture is incomplete</li>
      <li>incomplete_fbo - extra debug messages when a fbo is incomplete</li>
+     <li>context - create a debug context (see GLX_CONTEXT_DEBUG_BIT_ARB) and
+         print error and performance messages to stderr (or MESA_LOG_FILE).</li>
    </ul>
 <li>MESA_LOG_FILE - specifies a file name for logging all errors, warnings,
 etc., rather than stderr