[Mesa-dev] [PATCH v2 4/7] glsl: Add a parse check to check for the index layout qualifier

[Ryan Houdek]

This can only be used if EXT_blend_func_extended is enabled
---
 src/glsl/glsl_parser.yy | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/glsl/glsl_parser.yy b/src/glsl/glsl_parser.yy
index 4636435..40e60e5 100644
--- a/src/glsl/glsl_parser.yy
+++ b/src/glsl/glsl_parser.yy
@@ -1463,6 +1463,11 @@ layout_qualifier_id:
       }
 
       if (match_layout_qualifier("index", $1, state) == 0) {
+         if (state->es_shader && !state->EXT_blend_func_extended_enable) {
+            _mesa_glsl_error(& @3, state, "index layout qualifier requires EXT_blend_func_extended");
+            YYERROR;
+         }
+
          $$.flags.q.explicit_index = 1;
 
          if ($3 >= 0) {
-- 
2.5.0