From 3e820e3aef382fed73b6b8128596424ed7690951 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Fri, 30 Aug 2013 23:11:55 -0700 Subject: glsl: Pass _mesa_glsl_parse_state into matching_signature and such. During compilation, we'll use this to determine built-in availability. The plan is to have a single shader containing every built-in in every version of the language, but filter out the ones that aren't actually available to the shader being compiled. At link time, we don't actually need this filtering capability: we've already imported prototypes for every built-in that the shader actually calls, and they're flagged as is_builtin(). The linker doesn't import any additional prototypes, so it won't pull in any unavailable built-ins. When resolving prototypes to function definitions, the linker ensures the values of is_builtin() match, which means that a shader can't trick the linker into importing the body of an unavailable built-in by defining a suspiciously similar prototype. In other words, during linking, we can just pass in NULL. It will work out fine. Signed-off-by: Kenneth Graunke Reviewed-by: Matt Turner Reviewed-by: Paul Berry --- src/mesa/program/ir_to_mesa.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/mesa/program/ir_to_mesa.cpp') diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp index 340a4497fdd..fe9cac05f56 100644 --- a/src/mesa/program/ir_to_mesa.cpp +++ b/src/mesa/program/ir_to_mesa.cpp @@ -837,7 +837,7 @@ ir_to_mesa_visitor::visit(ir_function *ir) const ir_function_signature *sig; exec_list empty; - sig = ir->matching_signature(&empty); + sig = ir->matching_signature(NULL, &empty); assert(sig); -- cgit v1.2.3