[luatex] Magnification broken in different ways in luatex and dviluatex

[Hans Hagen]

On 6/1/2016 9:13 PM, Bruno Voisin wrote:
> Hi All,
>
> \mag and \magnification seem broken in luatex and dviluatex, in different ways for each:
>
> - For luatex, the specified magnification seems not to be applied to anything.
>
> - For dviluatex, the specified magnification seems to be applied to everything, whether or not true units are specified.
>
> This on Mac OS X 10.11.5 (the latest version) with mactex-20160523 (the latest build of tlpretest for the Mac).
>
> Attached is a test file slightly adapted from <http://tracker.luatex.org/view.php?id=971>, and the output with pdftex, tex+dvips+gs, xetex (same for all 3), luatex and dviluatex.
>
> The same can also be observed with the minimal test file in the comments at the end of pdftexmagfix.tex.

In pdf output mode \mag is not supported (has to do with accuracy, which 
is different in different spots in the backend and sensitive for 
overflow; graphics etc.).

In dvi mode we (stil) support it bit one needs to be aware of side 
effects when switching output modes while typesetting the first page 
because the output mode is only frozen when the first page ships out. 
(This is no big deal as using pdf backend features while going dvi 
afterwards is also messy, i.e. one has to set up these things as soon as 
possible.)

I fixed the dvi bit.

Hans

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