586771 - [d2d] REFTEST TEST-UNEXPECTED-FAIL | bugs/482592-1a.xhtml |

Status: NEW

(Core :: Graphics, defect)

Comment 1

[Jeff Muizelaar [:jrmuizel]]

It looks like the problem here is that.

show_glyphs('x'); show_glyphs('y')
is not the same as
show_glyphs('xy');

It's not exactly clear to me why this is, but based on the way text rasterization works in d2d it seems conceivable.

d2d builds up a buffer of rasterized glyph strings, along with a vertex buffer that corresponds to the location of each string. When these get flushed d2d filters and blends them onto the destination surface. So in the first case we have two quads and in the second case a single one.

Comment 2

[Joe Drew (not getting mail)]

This test is ignored on Direct2D. We should fix it by putting more space between the strings or masking the pixels where they ABUT.

Comment 3

[Joe Drew (not getting mail)]

Note that you'll also need to remove the random-if(d2d) in layout/reftests/bugs/reftest.list.