[Bug 94345] WebGL conformance2/reading/read-pixels-from-fbo-test.html fails

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Jun 28 10:05:20 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=94345

--- Comment #8 from xinghua <xinghua.cao at intel.com> ---
Mark,
Please help to re-check these issue.
Kenneth Graunke had advised us to raise the tolerance value(The value is 5
now), and I tried to raise the tolerance value( raise it to 10). I also found
it works correctly on Mesa 12.1.0 without raising the tolerance value.
But there are still other two cases failed in this html file. The root casue
is, when calling
gl.getParameter(gl.IMPLEMENTATION_COLOR_READ_FORMAT) return GL_BGR(or
GL_BGR_EXT),
gl.getParameter(gl.IMPLEMENTATION_COLOR_READ_TYPE) return
GL_UNSIGNED_SHORT_5_6_5_REV,

I had checked GL_BGR enum, it only exists on GL context, does not exist GLES
context. Why Mesa return GL_BGR type when my context is GLES context?

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