Fix texture unit enable/disable and binding prioritization.

Bug 21194513

Change-Id: I487a7e07aa936b8613200fae319fe09b86e81cb1
Reviewed-on: https://swiftshader-review.googlesource.com/3148
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>
3 files changed