tree a0becf14bd373fb412bd43dd1dcffc8c9f51dadf
parent 4eb079f72b12505e7adbb691b5d48cee93e9a0e1
author Alexis Hetu <sugoi@google.com> 1612911731 -0500
committer swiftshader-scoped@luci-project-accounts.iam.gserviceaccount.com <swiftshader-scoped@luci-project-accounts.iam.gserviceaccount.com> 1624887647 +0000

Only perform LOD computation when it is necessary

If an image has a single mip level, and filtering isn't LOD dependent,
as is the case when using FILTER_MIN_POINT_MAG_LINEAR or
FILTER_MIN_LINEAR_MAG_POINT, LOD computation is not necessary in
order to perform image sampling and can be bypassed entirely.

Bug: b/179889245
Change-Id: Ic69fe0c45211ccbb66c88c502c2dba1c50630aa7
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/52688
Presubmit-Ready: Alexis Hétu <sugoi@google.com>
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Commit-Queue: Alexis Hétu <sugoi@google.com>