tree a1bec6553d3d4372dbda9e3f0f634e3aea738695
parent 48280a4e92c9960cbb501e0ded86f662a03f9ad2
author Nicolas Capens <capn@google.com> 1512157250 -0500
committer Nicolas Capens <nicolascapens@google.com> 1512163538 +0000

Move draw call early-outs until after validation.

Drawing without a current program is not an error and we can early-out,
but not until after other validation which could generate an error has
completed. Validation happening on a valid program happens afterwards
though. Likewise, providing insufficient vertices for even one
primitive results in drawing nothing, but validation still needs to
happen.

Change-Id: I5385ffe352fc38343caa41eb99f5549472da3b4f
Reviewed-on: https://swiftshader-review.googlesource.com/14489
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>