This requires adding infrastructure to generate per-test data, so that
the random clip rect can be computed and reused for both test and
reference generation.
So add this infrastructure.
... and port the colorflip test.
This is so we can factor out generic parts of the code. This allows
making changes easier to those parts, like if we want to introduce
rules for what colorstates and memory depths to do diffs in.
When comparing textures, always pick the colorstate from the reference
texture. This allows us to define what color state we expect.
For now, there's no check that the color states are equal, because they
don't really have to be as long as the pixels are.
We use the renderer to create the reference for the rotate test by
applying the same rotate transform to the reference image instead of the
tested node.
This is somewhat suboptimal because they run very similar codepaths, but
this method works with high bit depth content and different colorstates
This concludes the port away from gdk-pixbuf and means that all rendered
content and reference images can now use high bit depth and colorstates.
We use the renderer to create the reference for the colorflip test by
applying the same colorflip matrix to the reference image instead of the
tested node.
This is somewhat suboptimal because they run very similar codepaths, but
this method works with high bit depth content and different colorstates
We use the renderer to create the reference for the clip test by
applying the same clip node to the reference image instead of the
tested node.
This is somewhat suboptimal because they run very similar codepaths, but
this method works with high bit depth content and different colorstates
We use the renderer to create the reference for the flip test by
applying the same transform node to the reference image instead of the
tested node.
This is somewhat suboptimal because they run very similar codepaths, but
this method works with high bit depth content and different colorstates
and the gdk-pixbuf method does not.
We use the renderer to create the reference for the repeat test by
applying the same repeat node to the reference image instead of the
tested node.
This is somewhat suboptimal because they run very similar codepaths, but
this method works with high bit depth content and different colorstates
and the gdk-pixbuf method does not.
So they must not copy the fully_opaque flag from the child.
Adapted the testcase that accidentally caught it do now always catch it
by setting a proper background.
This should have gone into !7619 but gitlab managed to finish the CI run
just as I was pushing a new version to the MR with
merge_request.merge_when_pipeline_succeeds and apparently gitlab applied
that to the previous version or something.
So now that MR merged an incomplete version to main. And here's the fix
for that.
Use the clamp() API from the previous commit to:
1. Clamp values into range
2. Emit an error if values were out of range
Unlike CSS, which just clamps and doesn't emit an error, we do want to
emit one because we care about colors being correct in our node files.
Make sure the radii are strictly positive.
Also handle the case where start >= end.
We can't really underline that error, because we don't track the
locations of the start/end properties until we know that there's an
error.
So just underline the whole radial gradient declaration.
Test included
When transforming back from a complex transform to a simpler transform,
the resulting clip might turn out to clip everything, because clips can
grow while transforming, but the scissor rect won't. So when this
process happens, we can end up with an empty clip by transforming:
1. Set a clip that also sets the scissor
2. transform in a way that grows the clip, say rotate(45)
3. modify the clip to shrink it
4. transform in a way that simplifies the transform, say another
rotate(45)
5. Figure out that this clip and the scissor rect do no longer overlap
Catch this case and avoid drawing anything.
