---
src/glsl/ast_to_hir.cpp | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index c06051f..e91e260 100644
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -4495,6 +4495,19 @@ ast_interface_block::hir(exec_list *instructions,
*/
assert(declared_variables.is_empty());
+ /* From section 4.3.4 (Inputs) of the GLSL 1.50 spec:
+ *
+ * Geometry shader input variables get the per-vertex values written
+ * out by vertex shader output variables of the same names. Since a
+ * geometry shader operates on a set of vertices, each input varying
+ * variable (or input block, see interface blocks below) needs to be
+ * declared as an array.
+ */
+ if (state->target == geometry_shader && !this->is_array &&
+ var_mode == ir_var_shader_in) {
+ _mesa_glsl_error(&loc, state, "geometry shader inputs must be arrays");
+ }
+
/* Page 39 (page 45 of the PDF) of section 4.3.7 in the GLSL ES 3.00 spec
* says:
*
--
1.8.3.4
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