From: Brian <brian@yutani.localnet.net>
Date: Sat, 28 Apr 2007 14:51:23 +0000 (-0600)
Subject: only load front/back face attrib if using a shader (bug 10788)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=af0ae93863b4c876e70efa4e7406f04a3409f135;p=mesa.git

only load front/back face attrib if using a shader (bug 10788)
---

diff --git a/src/mesa/swrast/s_fragprog.c b/src/mesa/swrast/s_fragprog.c
index 882fec29efe..09493873aa2 100644
--- a/src/mesa/swrast/s_fragprog.c
+++ b/src/mesa/swrast/s_fragprog.c
@@ -113,8 +113,10 @@ init_machine(GLcontext *ctx, struct gl_program_machine *machine,
    /* Setup pointer to input attributes */
    machine->Attribs = span->array->attribs;
 
-   /* Store front/back facing value in register FOGC.Y */
-   machine->Attribs[FRAG_ATTRIB_FOGC][col][1] = (GLfloat) ctx->_Facing;
+   if (ctx->Shader.CurrentProgram) {
+      /* Store front/back facing value in register FOGC.Y */
+      machine->Attribs[FRAG_ATTRIB_FOGC][col][1] = (GLfloat) ctx->_Facing;
+   }
 
    machine->CurElement = col;