The blitter was not doing the sRGB conversion on the first of N source samples when accumulating samples for doing an sRGB resolve. This cl also includes Chris' initial fix for PixelRoutine and SpirvShader. See: https://swiftshader-review.googlesource.com/c/SwiftShader/+/31928 Change-Id: I97ce06fb39788fd623eb9b5c0203e45fd911c1dd Tests: dEQP-VK.renderpass.suballocation.multisample.*.samples_4 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/32848Tested-by: Alexis Hétu <sugoi@google.com> Presubmit-Ready: Alexis Hétu <sugoi@google.com> Kokoro-Presubmit: kokoro <noreply+kokoro@google.com> Reviewed-by: Nicolas Capens <nicolascapens@google.com> Reviewed-by: Chris Forbes <chrisforbes@google.com>
