webgl/1.0.x/conformance/rendering/clipping-wide-points.html fails on macOS Catalina OpenGL

• Component: WebGL
• Status: NEW ---

[Kimmo Kinnunen]

macOS-Catalina-Release-WK2-Tests-EWS

https://ews-build.webkit.org/#/builders/59/builds/15001

This test runs the WebGL Test listed below in an iframe and reports PASS or FAIL.

Test: ../../../resources/webgl_test_files/conformance/rendering/clipping-wide-points.html

[ 1: PASS ] getError was expected value: NO_ERROR : Should be no errors after setting up program
[ 2: PASS ] should be 0,255,0
[ 3: PASS ] getError was expected value: NO_ERROR : Should be no errors after running one test case
[ 4: FAIL ] should be 0,255,0 at (0, 0) expected: 0,255,0 was 255,0,0
[ 5: PASS ] getError was expected value: NO_ERROR : Should be no errors after running one test case
[ 6: PASS ] should be 0,255,0
[ 7: PASS ] getError was expected value: NO_ERROR : Should be no errors after running one test case
[ 8: FAIL ] should be 0,255,0 at (0, 0) expected: 0,255,0 was 255,0,0
[ 9: PASS ] getError was expected value: NO_ERROR : Should be no errors after running one test case
[ 10: PASS ] successfullyParsed is true
[ FAIL ] 2 failures reported

[Kenneth Russell]

This isn't surprising - AMD's OpenGL driver behaved differently than all others in that it clipped wide points once their centroid moved off-screen. Hopefully ANGLE's Metal backend has resolved this longstanding behavioral problem and conformance test failure.

[Radar WebKit Bug Importer]

<rdar://problem/83049414>