diff options
| -rw-r--r-- | src/glsl/ast_to_hir.cpp | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp index 02fe66b6012..5157661b39e 100644 --- a/src/glsl/ast_to_hir.cpp +++ b/src/glsl/ast_to_hir.cpp @@ -2086,9 +2086,24 @@ apply_type_qualifier_to_variable(const struct ast_type_qualifier *qual, } else { var->location = qual->location; } + if (qual->flags.q.explicit_index) { - var->explicit_index = true; - var->index = qual->index; + /* From the GLSL 4.30 specification, section 4.4.2 (Output + * Layout Qualifiers): + * + * "It is also a compile-time error if a fragment shader + * sets a layout index to less than 0 or greater than 1." + * + * Older specifications don't mandate a behavior; we take + * this as a clarification and always generate the error. + */ + if (qual->index < 0 || qual->index > 1) { + _mesa_glsl_error(loc, state, + "explicit index may only be 0 or 1\n"); + } else { + var->explicit_index = true; + var->index = qual->index; + } } } } else if (qual->flags.q.explicit_index) { |