Reviewed-by: Samuel Iglesias Gonsálvez <sigles...@igalia.com>
On 07/10/15 10:12, Iago Toral Quiroga wrote:
> GLSL Spec 4.20.8, 4.3 Storage Qualifiers:
>
> "Initializers in global declarations may only be used in declarations of
> global variables with no storage qualifier, with a const qualifier or
> with a uniform qualifier."
>
> We do this for input variables, but not for output variables. AMD and NVIDIA
> proprietary drivers don't allow this either.
> ---
> src/glsl/ast_to_hir.cpp | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
> index 9511440..da79597 100644
> --- a/src/glsl/ast_to_hir.cpp
> +++ b/src/glsl/ast_to_hir.cpp
> @@ -3201,6 +3201,12 @@ process_initializer(ir_variable *var, ast_declaration
> *decl,
> ? "attribute" : "varying");
> }
>
> + if ((var->data.mode == ir_var_shader_out) && (state->current_function ==
> NULL)) {
> + _mesa_glsl_error(&initializer_loc, state,
> + "cannot initialize %s shader output",
> + _mesa_shader_stage_to_string(state->stage));
> + }
> +
> /* If the initializer is an ast_aggregate_initializer, recursively store
> * type information from the LHS into it, so that its hir() function can
> do
> * type checking.
>
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