tree b0d54f56c35c00e1bcb09ec3f35985f560a544bb
parent a6bc61d61d6fe9551d72f917629bf6bccfeafce0
author Nicolas Capens <capn@google.com> 1513873254 -0500
committer Nicolas Capens <nicolascapens@google.com> 1513880889 +0000

Clamp unsigned floating-point formats.

GL_R11F_G11F_B10F is a renderable format (in the EXT_color_buffer_float
extension) with unsigned floating-point values, which we implement using
(signed) half- or single-precision floating-point types. So we need to
clamp values to a positive range before writing to them.

Change-Id: Ic21a5b0b33905c0aeab35299fc268158f8c679f9
Reviewed-on: https://swiftshader-review.googlesource.com/15448
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>