Bug 1718909 [wpt PR 29563] - Keep points on edges crossing w=0 under kInfiniteCoordinate., a=testonly

Automatic update from web-platform-tests Keep points on edges crossing w=0 under kInfiniteCoordinate. This adds half of std::numeric_limits<float>::epsilon() (FLT_EPSILON), which is the smallest representable difference for a float at 1.0, so that the code to shift t away from the point where w=0 will move it enough so that the result is less than kInfiniteCoordinate. Bug: 1224066 Change-Id: I7df134c277f280987405d0d0c2d47de15d3ef55d Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3002270 Reviewed-by: Robert Flack <flackr@chromium.org> Commit-Queue: David Baron <dbaron@chromium.org> Cr-Commit-Position: refs/heads/master@{#898172} -- wpt-commits: 428213381f43418226b8df335710c8e8c74d10ee wpt-pr: 29563
2021-07-02 21:37:10 +00:00 · 2021-07-02 21:37:10 +00:00 · af774bec0a
--- a/testing/web-platform/tests/css/css-transforms/crashtests/preserve3d-scene-001.html
+++ b/testing/web-platform/tests/css/css-transforms/crashtests/preserve3d-scene-001.html
@ -0,0 +1,32 @@
+<!DOCTYPE HTML>
+<title>CSS Test (Transforms): Very large values in matrix3d()</title>
+<link rel="author" title="L. David Baron" href="https://dbaron.org/">
+<link rel="author" title="Google" href="http://www.google.com/">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1224066">
+<meta name="assert" content="This should not crash.">
+<style>
+
+.outer {
+  column-count:16384;
+  -webkit-mask-box-image: url('?') 10% 90% repeat;
+}
+
+.middle {
+  -webkit-transform-style:preserve-3d;
+  display:list-item;
+}
+
+table {
+  height:7.1px;
+  padding-right:4em;
+  transform:matrix3d(0,7.8,+9,+2,-3.6,3.4,6,8.8,9.5,7,7.3,5.3,6.4,3.7,8.3,8);
+  border-left: medium black solid;
+}
+
+tbody {
+  font:icon;
+}
+
+</style>
+
+<div class="outer"><div class="middle"><table>