[gs-bugs] [Bug 696819] - MuPDF - Subpixel rendering

bugzilla-daemon at artifex.com bugzilla-daemon at artifex.com
Mon Jun 6 13:25:04 UTC 2016


http://bugs.ghostscript.com/show_bug.cgi?id=696819

Robin Watts <robin.watts at artifex.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |robin.watts at artifex.com
         Resolution|---                         |WONTFIX
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #1 from Robin Watts <robin.watts at artifex.com> ---
In order to support subpixel rendering, we need to know the layout of the
sub-pixels on the screen.

Most computer monitors are RGBRGBRGB, though some are BGRBGRBGR.

Many devices have more complex layouts (with certain subpixels shared between
pixels). For handheld devices this is even harder to get right due to the need
to support different rotations.

We therefore take the view that if you want subpixel rendering, you should
update the transform on input to be 3 times as wide, render to a wider pixmap,
and then filter it down according to your own specific devices screen.

The core is entirely capable of doing this with no extra changes required on
our part.

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