diff options
| -rw-r--r-- | src/glsl/ast_array_index.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/glsl/ast_array_index.cpp b/src/glsl/ast_array_index.cpp index 27e84d1..ae399f0 100644 --- a/src/glsl/ast_array_index.cpp +++ b/src/glsl/ast_array_index.cpp @@ -290,6 +290,21 @@ _mesa_ast_array_index_to_hir(void *mem_ctx, "1.30 and later"); } } + + /* From page 27 of the GLSL ES 3.1 specification: + * + * "When aggregated into arrays within a shader, images can only be + * indexed with a constant integral expression." + * + * On the other hand the desktop GL specification extension allows + * non-constant indexing of image arrays, but behavior is left undefined + * in cases where the indexing expression is not dynamically uniform. + */ + if (state->es_shader && array->type->without_array()->is_image()) { + _mesa_glsl_error(&loc, state, + "image arrays indexed with non-constant " + "expressions are forbidden in GLSL ES."); + } } /* After performing all of the error checking, generate the IR for the |