glsl: ignore default qualifier declarations when checking for duplicate layout qualifiers

Signed-off-by: Samuel Iglesias Gonsalvez <[email protected]>
Reviewed-by: Kristian Høgsberg <[email protected]>

3 files changed, 8 insertions, 1 deletions

diff --git a/src/glsl/ast.h b/src/glsl/ast.h
index d8c6cea7832..335f426d418 100644
--- a/src/glsl/ast.h
+++ b/src/glsl/ast.h
@@ -639,6 +639,9 @@ struct ast_type_qualifier {
     */
    glsl_base_type image_base_type;
 
+   /** Flag to know if this represents a default value for a qualifier */
+   bool is_default_qualifier;
+
    /**
     * Return true if and only if an interpolation qualifier is present.
     */
diff --git a/src/glsl/glsl_parser.yy b/src/glsl/glsl_parser.yy
index 4dd5384dac8..42108a3c1b6 100644
--- a/src/glsl/glsl_parser.yy
+++ b/src/glsl/glsl_parser.yy
@@ -2599,7 +2599,8 @@ interface_block:
    {
       ast_interface_block *block = (ast_interface_block *) $2;
 
-      if (!state->has_420pack() && block->layout.has_layout()) {
+      if (!state->has_420pack() && block->layout.has_layout() &&
+          !block->layout.is_default_qualifier) {
          _mesa_glsl_error(&@1, state, "duplicate layout(...) qualifiers");
          YYERROR;
       }
@@ -2608,6 +2609,8 @@ interface_block:
          YYERROR;
       }
 
+      block->layout.is_default_qualifier = false;
+
       foreach_list_typed (ast_declarator_list, member, link, &block->declarations) {
          ast_type_qualifier& qualifier = member->type->qualifier;
          if (qualifier.flags.q.stream && qualifier.stream != block->layout.stream) {
diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp
index dae5261daca..7d976c26f8c 100644
--- a/src/glsl/glsl_parser_extras.cpp
+++ b/src/glsl/glsl_parser_extras.cpp
@@ -242,6 +242,7 @@ _mesa_glsl_parse_state::_mesa_glsl_parse_state(struct gl_context *_ctx,
    this->default_uniform_qualifier = new(this) ast_type_qualifier();
    this->default_uniform_qualifier->flags.q.shared = 1;
    this->default_uniform_qualifier->flags.q.column_major = 1;
+   this->default_uniform_qualifier->is_default_qualifier = true;
 
    this->fs_uses_gl_fragcoord = false;
    this->fs_redeclares_gl_fragcoord = false;