Support image-rendering css property on <embed>
Reported by
morningp...@gmail.com,
Jul 31 2017
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Issue descriptionUserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.78 Safari/537.36 Steps to reproduce the problem: 1. Open example2.html 2. Notice that the flash file is downscaled by a factor of 10, then upscaled by a factor of 10 using a CSS transform 3. Notice that the CSS rule image-rendering: pixelated is set What is the expected behavior? The SWF should be pixelated into 10x10 squares. If you open the testcase in Firefox, the expected behavior occurs (though note that Firefox uses image-rendering: optimizeSpeed instead, which is included in the example). See pixelated.png for a screenshot of the Firefox expected behavior. What went wrong? There is anti-aliasing, though image-rendering: pixelated is set. See antialiased.png for a screenshot of Chromium's behavior. Did this work before? No Does this work in other browsers? Yes Chrome version: 60.0.3112.78 (Developer Build) (64-bit) Channel: n/a OS Version: Linux computer 4.11.9-1-ARCH #1 SMP PREEMPT Wed Jul 5 18:23:08 CEST 2017 x86_64 GNU/Linux Flash Version: 26.0.0.137 Checked as far back as Chromium 54.0.2840.71, and the issue was there then, too.
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Aug 1 2017
Uploaded a more salient testcase + screenshots
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Aug 1 2017
The CSS style is correctly applied to the element, this looks paint related?
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Aug 1 2017
Looks like we just don't honor image-rendering on embed elements (or, likely, many others). Per the spec, this should apply to all elements: https://drafts.csswg.org/css-images-3/#the-image-rendering
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Aug 2 2017
How are we going to do that? Don't flash and fellows do their own painting?
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Aug 2
This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue. Sorry for the inconvenience if the bug really should have been left as Available. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Aug 2
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Aug 3
>This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue. After opening the attached testcase (example.swf/example2.html) in Chromium 68.0.3440.84 and Firefox 61.0.1, which are the latest stable releases available as of this comment: • Chromium's embed element is anti-aliased regardless of the value of the image-rendering CSS property • Firefox's embed element is only anti-aliased if the image-rendering property is not set to optimizeSpeed This behavior was also observed when reporting the issue. |
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Comment 1 by manoranj...@chromium.org
, Jul 31 2017