Bug 247042

Summary:

TextureMapper: Calculate the bounding box of a layer transformed by 4x4 matrix precisely by intersecting with the viewport

Product:

WebKit

Reporter:

Fujii Hironori <fujii.hironori>

Component:

Platform

Assignee:

Nobody <webkit-unassigned>

Status:

NEW

Severity:

Normal

CC:

webkit-bug-importer

Priority:

Keywords:

InRadar

Version:

WebKit Nightly Build

Hardware:

Unspecified

OS:

Unspecified

Attachments:

Description	Flags
test case	none

Fujii Hironori

Reported 2022-10-25 18:28:29 PDT

Created attachment 463245 [details] test case bug#244824 added transformedBoundingBox to calculate the bounding box of a layer transformed by 4x4 matrix. However, it isn't precise. For example, in the test case, the right side of the blue element is at infinity. transformedBoundingBox is assuming the positions of the right side are (inf, inf) and (-inf, -inf). We can calculate more precise bounding box by intersecting element edges with the viewport.

Attachments
test case (582 bytes, text/html) 2022-10-25 18:28 PDT, Fujii Hironori	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Radar WebKit Bug Importer

Comment 1 2022-11-01 18:29:17 PDT

<rdar://problem/101835693>

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