зеркало из https://github.com/mozilla/gecko-dev.git
c5357efe52
When an offscreen surface establishes a raster root, this code was causing incorrect snapping / rounded (even on non-inflated surfaces), resulting in test failures in some cases. In theory, this should not be necessary, since scroll offsets are snapped, and primitives are already snapped during scene building. Additionally, the picture surface allocation code expects surfaces with fractional offsets and handles this case (by rounding out the allocation size, and creating a UV set that samples from the subpixel offsets of the surface). In practice, there may be content that relies on this which isn't tested by CI, so let's land this as a separate patch and see if it causes any real-world content regressions, before landing the changes that rely on this. Differential Revision: https://phabricator.services.mozilla.com/D107768 |
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