glsl: process local_size_variable input qualifier

This is the new layout qualifier introduced by
ARB_compute_variable_group_size which allows to use a variable work
group size.

v4: - add missing '%s' in the monster format string

Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/compiler/glsl/glsl_parser.yy b/src/compiler/glsl/glsl_parser.yy
index 9e1fd9e3e67..38cbd3fa866 100644
--- a/src/compiler/glsl/glsl_parser.yy
+++ b/src/compiler/glsl/glsl_parser.yy
@@ -1491,6 +1491,19 @@ layout_qualifier_id:
          }
       }
 
+      /* Layout qualifiers for ARB_compute_variable_group_size. */
+      if (!$$.flags.i) {
+         if (match_layout_qualifier($1, "local_size_variable", state) == 0) {
+            $$.flags.q.local_size_variable = 1;
+         }
+
+         if ($$.flags.i && !state->ARB_compute_variable_group_size_enable) {
+            _mesa_glsl_error(& @1, state,
+                             "qualifier `local_size_variable` requires "
+                             "ARB_compute_variable_group_size");
+         }
+      }
+
       if (!$$.flags.i) {
          _mesa_glsl_error(& @1, state, "unrecognized layout identifier "
                           "`%s'", $1);