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The comment in nsDisplayTransform::GetTransformForRendering() clearly says that |aOutOrigin| should return the same offset as GetTransform(). GetTransform() will pass the offset to GetResultingTransformMatrix() which will round it in many cases to avoid subpixel blurry rendering. But GetTransformForRendering() doesn't take this rounding into account, thus contradicting the intent described by the comment. This rounding is important to keep subpixel behavior consistent with or without webrender enabled. Currently, SVG will be rendered blurry in some cases if it's at a subpixel position. After fixing the problem in non-webrender case, the strange blur still occurs in webrender case. It turns out to be caused by this inconsistency. Differential Revision: https://phabricator.services.mozilla.com/D29495 --HG-- extra : moz-landing-system : lando |
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W3C CSS Test Suite Directory ---------------------------- This directory is for tests that are sync'ed with the official W3C CSS test suites at https://github.com/w3c/web-platform-tests/. submitted/ is for tests that are to be submitted to W3C. This directory is sync'ed automatically with the contributors/mozilla/submitted/mozilla-central-reftests/ directory in the CSSWG repository. The master copy is Mozilla's. received/ is for tests that are received from W3C. This directory is sync'ed semi-automatically with the approved/ directory in the CSSWG repository. The master copy is CSSWG's. Don't make changes here; they'll be overwritten by the next sync. import-tests.py automatically imports a selection of CSSWG tests from a clone of the https://github.com/w3c/web-platform-tests Git repository. Note that this will remove everything in the received/ directory when run, so don't store anything in there. failures.list is a list of reftests that fail in mozilla's implementation of a given css module. Since the tests in are checked-in to the mozilla tree after import, they are run in the same manner as all other reftests in the tree. Thus, these tests are marked as fails() when included in the reftest.list file, so that new imports will not reawaken old oranges. Legal Stuff ----------- These files are copyright by W3C and/or the author listed in the test file. They are available under the BSD 3-clause license; see LICENSE or http://www.w3.org/Consortium/Legal/2008/03-bsd-license.html