[cairo-bugs] [Bug 84396] cairo-tor-scan-converter is off by half of a subrow.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84396

--- Comment #23 from Chris Wilson <chris at chris-wilson.co.uk> ---
Wrote a simple 256x256 rasteriser to highlight the issue with sampling along
the fullrow.

commit 50b41e214533ea5fd3b64128306b6cb94d353145
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Oct 1 22:50:10 2014 +0100

    test: Add a simple rasteriser to check fidelity of edge rendering

    In order to check the behaviour of the analytic rasteriser inside tor,
    let's compare it against a very simple rasteriser that uses a rectiliner
    256x256 sample grid.

    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

./cairo-test-suite simple-edges

Sadly it also says that my patch is inadequate.

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