diff options
| -rw-r--r-- | src/mesa/main/shader_query.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mesa/main/shader_query.cpp b/src/mesa/main/shader_query.cpp index 1c3c8e9a4db..f66c117338c 100644 --- a/src/mesa/main/shader_query.cpp +++ b/src/mesa/main/shader_query.cpp @@ -86,6 +86,15 @@ is_active_attrib(const ir_variable *var) case ir_var_shader_in: return var->data.location != -1; + case ir_var_system_value: + /* From GL 4.3 core spec, section 11.1.1 (Vertex Attributes): + * "For GetActiveAttrib, all active vertex shader input variables + * are enumerated, including the special built-in inputs gl_VertexID + * and gl_InstanceID." + */ + return !strcmp(var->name, "gl_VertexID") || + !strcmp(var->name, "gl_InstanceID"); + default: return false; } |