---
src/glsl/ast_array_index.cpp | 15 +++++++++++++++
1 file changed, 15 insertions(+)
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
--
2.4.6
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