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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /layout/reftests/image/image-object-fit-with-background-2.html
parentInitial commit. (diff)
downloadfirefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
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Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!DOCTYPE html>
+<!--
+ Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!--
+ This testcase ensures that we paint the background around an opaque image,
+ when the image is kept from filling the container via 'object-fit' (and
+ the img element is fragmented). This is an interesting case because, by
+ default, images fill their container, which means we can often optimize
+ away the background completely. BUT, if "object-fit" prevents the image
+ from filling its container, we can't optimize away the background; it need
+ to be painted in the uncovered area.
+-->
+<html class="reftest-paged">
+ <head>
+ <meta charset="utf-8">
+ <style type="text/css">
+ img.test {
+ background: salmon;
+ object-fit: none;
+ width: 32px;
+ /* We make the height 6in larger than the image's intrinsic height,
+ * which gives us the following happy results:
+ * (1) the <img> will split over several 3in tall reftest-paged cards
+ * (so, we get to test fragmentation).
+ * (2) the image pixels end up on the second fragment (not the first),
+ * so we get to test image-data painting on later fragments.
+ * (3) the reference case can easily match us using a simple img
+ * with 3in-tall divs before & after it.
+ */
+ height: calc(32px + 6in);
+ display: block; /* Required for fragmentation */
+ }
+ </style>
+ </head>
+ <body>
+ <img class="test" src="blue-32x32.png">
+ </body>
+</html>