From 295e03c980a7ff6dde77abcb6bbfa2f8d015323b Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Mon, 20 Jun 2016 23:41:11 -0700 Subject: [PATCH] spirv: Use the system value version of gl_FrontFace SPIR-V treats it as an input but NIR wants the system value. This shouldn't have been too much of a surprise given that we have to do the same conversion in the GLSL IR to NIR pass. Signed-off-by: Jason Ekstrand Reviewed-by: Kenneth Graunke Cc: "12.0" --- src/compiler/spirv/vtn_variables.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/compiler/spirv/vtn_variables.c b/src/compiler/spirv/vtn_variables.c index 61fc184a692..fe2494ba3b3 100644 --- a/src/compiler/spirv/vtn_variables.c +++ b/src/compiler/spirv/vtn_variables.c @@ -839,8 +839,8 @@ vtn_get_builtin_location(struct vtn_builder *b, assert(*mode == nir_var_shader_in); break; case SpvBuiltInFrontFacing: - *location = VARYING_SLOT_FACE; - assert(*mode == nir_var_shader_in); + *location = SYSTEM_VALUE_FRONT_FACE; + set_mode_system_value(mode); break; case SpvBuiltInSampleId: *location = SYSTEM_VALUE_SAMPLE_ID; -- 2.30.2