[Webkit-unassigned] [Bug 100789] New: glsl-function-atan.html WebGL conformance test fails after https://bugs.webkit.org/show_bug.cgi?id=99154
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue Oct 30 14:38:42 PDT 2012
https://bugs.webkit.org/show_bug.cgi?id=100789
Summary: glsl-function-atan.html WebGL conformance test fails
after https://bugs.webkit.org/show_bug.cgi?id=99154
Product: WebKit
Version: 528+ (Nightly build)
Platform: Unspecified
OS/Version: Unspecified
Status: NEW
Severity: Normal
Priority: P2
Component: WebGL
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: roger_fong at apple.com
CC: hausmann at webkit.org, barraclough at apple.com,
fpizlo at apple.com
Hello, I'm not savvy enough with Javascript, Compilers or MacroAssemblers to know what's causing this but a WebGL conformance test started failing after this patch (https://bugs.webkit.org/show_bug.cgi?id=99154 / r131858) landed.
The test is here https://www.khronos.org/registry/webgl/conformance-suites/1.0.1/conformance/glsl/functions/glsl-function-atan.html.
In particular the part of the test that is failing is this.
tests: [
{
source: ["$(output) = vec4(",
" $(func)($(input).x * 8.0 - 4.0) / k2PI + 0.5,",
" 0.5,",
" 0,",
" 1);"].join("\n"),
generator: function(x, y, z, w) {
return [ atan(x * 8.0 - 4.0) / k2PI + 0.5,
0.5,
0,
1 ];
},
},
The "generator" is the reference for the test and it seems to be having trouble with the second (green) element of the array, which is set to .5.
I noticed however, that if I set it to anything besides .5 (like .50001) the test passes.
Could someone take a look at it?
Thanks
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