tree 21aa01a4ff19f2a37ad1716887e034da408fc546
parent 680d3761065603431d6e4680900db67e7d28717d
author Nicolas Capens <capn@google.com> 1567173259 -0400
committer Nicolas Capens <nicolascapens@google.com> 1567178177 +0000

Initialize the blend state using memset

The BlendState structure is part of the cache key used to look up pixel
routines, which must not contain any uninitialized bits. The
PixelProcessor::States structure gets zero-initialized as a whole by
the Memset<> base class, but when writing BlendState structures into it
any uninitialized bits may get copied over.

Thus BlendState must also be zero-initialized, using Memset<>.

Bug: b/140286664
Bug: b/140193782
Change-Id: I031ec1a5f3be4329ae16366bfd4c8f17e2371384
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/35768
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>