From 3e1706f720b211f27a4aa88af2141db0c793adbb Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Tue, 19 Aug 2008 10:27:06 -0600
Subject: mesa: glsl: add usage tracking for uniform vars

Unused uniforms are no longer included in the active uniforms list.
---
 src/mesa/shader/slang/slang_link.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/mesa/shader/slang/slang_link.c')

diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c
index e33272eff2..57dbfc2388 100644
--- a/src/mesa/shader/slang/slang_link.c
+++ b/src/mesa/shader/slang/slang_link.c
@@ -173,7 +173,7 @@ link_uniform_vars(struct gl_shader_program *shProg,
        * Furthermore, we'll need to fix the state-var's size/datatype info.
        */
 
-      if (p->Type == PROGRAM_UNIFORM ||
+      if ((p->Type == PROGRAM_UNIFORM && p->Used) ||
           p->Type == PROGRAM_SAMPLER) {
          _mesa_append_uniform(shProg->Uniforms, p->Name, prog->Target, i);
       }
-- 
cgit v1.2.3