Add guard before calling ctx->Driver.BindProgram

2005-12-05 11:44:09 +00:00
parent f27c07c99e
commit b4ebb68202
1 changed files with 2 additions and 1 deletions
@@ -1536,7 +1536,8 @@ void _tnl_UpdateFixedFunctionProgram( GLcontext *ctx )
   /* Tell the driver about the change.  Could define a new target for
    * this?
    */
-   if (ctx->VertexProgram._Current != prev) 
+   if (ctx->VertexProgram._Current != prev &&
+       ctx->Driver.BindProgram) 
      ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB, (struct program *)
 			      ctx->VertexProgram._Current);   
 }