tree c0b28a4132c997b6f059961e30fe3d895de00f6d
parent 708ca9579181a8096193f68ad6c412a5fd302d5b
author Nicolas Capens <capn@google.com> 1659106055 -0400
committer Nicolas Capens <nicolascapens@google.com> 1660219141 +0000

Don't expose VK_EXT_external_memory_host on macOS

macOS has strong assumptions about GPU availability, and thus doesn't
have a reliable API for sharing memory between the GPU and SwiftShader
which can comply with SwiftShader's alignment and padding needs.
Specifically, we must not try obtaining a pointer from an IOSurface and
import it into SwiftShader.

Bug: angleproject:7538
Bug: b/178039602
Change-Id: I3ecc4dff31a9e025f50c4afcf7d82fa4384b2cd1
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/67168
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>