let's like, chill out about all these rules, man
There's really no reason to prevent any of these conversions;
they all have somewhat reasonable behavior:
- converting between grey in different color spaces
should probably work just fine
- we'll convert color to gray using a fixed set of
luminance coefficients, but that's better than failing
- we'll invent {r,g,b} = {0,0,0} if we convert alpha
to something with color
- converting to opaque formats without thinking about
premul/unpremul is probably fine, better than just
not working at all
- a missing src color space can always be assumed to be sRGB
Updates to ReadPixelsTest:
- skip more supported test cases in test_conversion(),
each with a TODO
- conversions from non-opaque to opaque should now work
- conversion from A8 to non-A8 should sometimes now
work on GPUs, and the test needed a little bit of
a tweak to not expect A8 to carry around color somehow.
Updates to SRGBReadWritePixelsTest:
- writing untagged pixels shouldn't fail anymore;
instead, it should behave like it was tagged sRGB
Change-Id: I19e78f3a6c89ef74fbcbc985d3fbd77fa984b1c2
Reviewed-on: https://skia-review.googlesource.com/147815
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
4 files changed