218372 2020-10-29 20:19:19 -0700 [FreeType] Missing support for COLR/CPAL fonts. 2023-09-27 15:36:07 -0700 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=218346 P2 Normal --- 1 clopez webkit-unassigned 7t3chguy aperez bugs-noreply cgarcia changseok mcatanzaro mmaxfield simon.fraser oldest_to_newest 1702958 0 clopez 2020-10-29 20:19:19 -0700 COLR/CPAL fonts are one type of OpenType color fonts. These fonts compose layers of vector outline glyphs and color palette information into the final colored glyph. Because they are vector based, COLR/CPAL fonts provide for faster downloads and require less storage. Online tests: https://pixelambacht.nl/demo/color-font-test.html https://pixelambacht.nl/chromacheck/ On r269177 43 new layout tests were added to test the support for COLR/CPAL and SBIX fonts. As far as I can see WebKitGTK/WPE supports SBIX fonts but not COLR fonts. This are the failures from those 43 test addeds: Regressions: Unexpected image-only failures (29) fast/text/canvas-color-fonts/COLR.html [ ImageOnlyFailure ] fast/text/canvas-color-fonts/fill-color-shadow-COLR.html [ ImageOnlyFailure ] fast/text/canvas-color-fonts/fill-color-shadow-ctm-COLR.html [ ImageOnlyFailure ] fast/text/canvas-color-fonts/linedash-COLR.html [ ImageOnlyFailure ] fast/text/canvas-color-fonts/stroke-color-COLR.html [ ImageOnlyFailure ] fast/text/canvas-color-fonts/stroke-color-shadow-COLR.html [ ImageOnlyFailure ] fast/text/canvas-color-fonts/stroke-color-shadow-ctm-COLR.html [ ImageOnlyFailure ] fast/text/canvas-color-fonts/stroke-gradient-COLR-3.html [ ImageOnlyFailure ] fast/text/canvas-color-fonts/stroke-gradient-COLR-4.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/ctm-sbix-2.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/ctm-sbix-3.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/ctm-sbix-4.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/fill-color-sbix-2.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/fill-color-sbix-3.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/fill-color-sbix-4.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/fill-color-shadow-ctm-sbix.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/fill-color-shadow-sbix.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/fill-gradient-sbix-2.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/fill-gradient-sbix-3.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/fill-gradient-sbix-4.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/stroke-color-sbix.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/stroke-color-shadow-ctm-sbix.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/stroke-color-shadow-sbix.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/stroke-gradient-sbix-2.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/stroke-gradient-sbix-3.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/stroke-gradient-sbix-4.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/text-sbix-2.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/text-sbix-3.html [ ImageOnlyFailure ] http/tests/canvas/color-fonts/text-sbix-4.html [ ImageOnlyFailure ] 1702963 1 clopez 2020-10-29 20:28:41 -0700 Updated expectations on r269178 1871738 2 mcatanzaro 2022-05-25 09:12:47 -0700 Related: https://webkit.org/blog/12662/customizing-color-fonts-on-the-web/ 1871869 3 aperez 2022-05-25 15:44:19 -0700 (In reply to Carlos Alberto Lopez Perez from comment #0) > Online tests: > https://pixelambacht.nl/demo/color-font-test.html > https://pixelambacht.nl/chromacheck/ > > On r269177 43 new layout tests were added to test the support for COLR/CPAL > and SBIX fonts. > > As far as I can see WebKitGTK/WPE supports SBIX fonts but not COLR fonts. The firs linked page above claims that WebKitGTK 2.36.2 supports COLR; the second one says it supports COLR but not COLRv1 (I am not sure what the difference is). This is with Freetype 2.12.1, Pango 1.50.7, and Harfbuzz 4.3.0 1871874 4 mcatanzaro 2022-05-25 16:06:33 -0700 Complaint in https://gitlab.gnome.org/GNOME/epiphany/-/issues/1782 is specifically that COLRv0 doesn't work. 1947249 5 changseok 2023-04-07 02:59:46 -0700 *** Bug 255143 has been marked as a duplicate of this bug. ***