The code would previously look at the emulated alpha texture's
swizzle, or the application swizzle, but wouldn't combine them
together. This means that swizzling was incorrect when using an
emulated alpha texture in conjunction with application swizzle.
Also, remove swizzle_* from struct vrend_sampler_view since these
aren't used outside of this single function.
Fixes:
dEQP-GLES3.functional.texture.swizzle.multi_channel.alpha_*
Signed-off-by: Stéphane Marchesin <marcheu@chromium.org>
Stéphane Marchesin
a9f6bb03de