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man: Clarify weston.ini scale option 

Add explanations of scaling that are a bit more approachable for users.

Signed-off-by: Yong Bakos <ybakos@humanoriented.com>
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=94824
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Yong Bakos 2016-04-25 07:04:32 -05:00 committed by Pekka Paalanen
parent bd57310c11
commit 425d9d9a67
1 changed files with 11 additions and 6 deletions
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17
man/weston.ini.man
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@ -389,15 +389,20 @@ be one of the following 8 strings:
.RE
.TP 7
.BI "scale=" factor
An integer, 1 by default, typically configured as 2 when needed, denoting
the scale factor of the output. Applications that support it render at the
appropriate scale. For other applications, weston will scale their output
by this factor.
The scaling multiplier applied to the entire output, in support of high
resolution ("HiDPI" or "retina") displays, that roughly corresponds to the
pixel ratio of the display's physical resolution to the logical resolution.
Applications that do not support high resolution displays typically appear tiny
and unreadable. Weston will scale the output of such applications by this
multiplier, to make them readable. Applications that do support their own output
scaling can draw their content in high resolution, in which case they avoid
compositor scaling. Weston will not scale the output of such applications, and
they are not affected by this multiplier.
.RE
.RS
.PP
Use a value of 2 for outputs with high resolution. Such displays are often
called "HiDPI" or "retina" displays.
An integer, 1 by default, typically configured as 2 or higher when needed,
denoting the scaling multiplier for the output.
.RE
.TP 7
.BI "seat=" name