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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - cairo-tor-scan-converter is off by half of a subrow."
   href="https://bugs.freedesktop.org/show_bug.cgi?id=84396#c20">Comment # 20</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - cairo-tor-scan-converter is off by half of a subrow."
   href="https://bugs.freedesktop.org/show_bug.cgi?id=84396">bug 84396</a>
              from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
        <pre>Created <span class=""><a href="attachment.cgi?id=107186" name="attach_107186" title="Walk fullrow edges between precise end-points.">attachment 107186</a> <a href="attachment.cgi?id=107186&action=edit" title="Walk fullrow edges between precise end-points.">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=84396&attachment=107186'>[review]</a>
Walk fullrow edges between precise end-points.

For the inside a pixel check, I think cell is correct (the line has to go
between the cell end-points), but it does lose some precision when stepping
between pixels. I was looking at that, but didn't get my math right when I
spotted the bug and went to fix that.

bug-seams is indeed a different class (fullrow does the analytical coverage
computation, subrow does the sample coverage) and so there does remain yet
another asymmetry bug in tor somewhere.</pre>
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