[Mesa-dev] [PATCH] glsl: Make invariant outputs in ES fragment shader not to cause error

[Danylo Piliaiev]

In all GLSL ES versions output variables in fragment shader are allowed
to be invariant.

 From Section 4.6.1 ("The Invariant Qualifier") GLSL ES 1.00 spec:
 "Only the following variables may be declared as invariant:
   ...
   - Built-in special variables output from the fragment shader."

 From Section 4.6.1 ("The Invariant Qualifier") GLSL ES 3.00 spec:
 "Only variables output from a shader can be candidates for invariance."

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107842

Signed-off-by: Danylo Piliaiev <danylo.piliaiev at globallogic.com>
---
 src/compiler/glsl/ast_to_hir.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/glsl/ast_to_hir.cpp b/src/compiler/glsl/ast_to_hir.cpp
index 5d3f10b682..21cf04ba99 100644
--- a/src/compiler/glsl/ast_to_hir.cpp
+++ b/src/compiler/glsl/ast_to_hir.cpp
@@ -2713,7 +2713,7 @@ is_allowed_invariant(ir_variable *var, struct _mesa_glsl_parse_state *state)
     * "Only variables output from a vertex shader can be candidates
     * for invariance".
     */
-   if (!state->is_version(130, 0))
+   if (!state->is_version(130, 100))
       return false;
 
    /*
-- 
2.18.0