tree babf42f965a74f745d73aacbb227e9b524559156
parent e0d50dd4f710a435e1f4b514b96ac8cd41fe2f6f
author Alexis Hetu <sugoi@google.com> 1661875275 -0400
committer swiftshader-scoped@luci-project-accounts.iam.gserviceaccount.com <swiftshader-scoped@luci-project-accounts.iam.gserviceaccount.com> 1662575693 +0000

shaderSampledImageArrayNonUniformIndexing support

This CL implements the shaderSampledImageArrayNonUniformIndexing
feature, which allows arrays of samplers or sampled images to be
indexed by non-uniform integer expressions in shader code.

This is a brute force implementation, which simply repeats the
sampling operation for every lane. This leaves room for future
optimization when some of them or all of them don't diverge.

Bug: b/236957718
Change-Id: Ic4d8b58b1bd8281a07c28a43d9a96f3ae2ea9bf4
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/67810
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Commit-Queue: Alexis Hétu <sugoi@google.com>
Presubmit-Ready: Alexis Hétu <sugoi@google.com>