[cairo] font size change only in large steps

[Alois Treindl]

The good news is:

I downloaded cairo source 1.14.12 and compiled it on RHEL 7.5, which 
creates libcairo.so.2.11400.12

If I throw this into /usr/lib64 and run ldconfig, the problem goes away.

Font size varies in steps as it should.


[alois at as80 devlop]$ ctest1  bitmap
9.0 pt on  Size: 49x7    9.0 pt off  Size: 45.4966x6.80713
9.1 pt on  Size: 49x7    9.1 pt off  Size: 46.0021x6.88276
9.2 pt on  Size: 49x7    9.2 pt off  Size: 46.5076x6.9584
9.3 pt on  Size: 49x7    9.3 pt off  Size: 47.0131x7.03403
9.4 pt on  Size: 49x7    9.4 pt off  Size: 47.5187x7.10967
9.5 pt on  Size: 51x7    9.5 pt off  Size: 48.0242x7.1853
9.6 pt on  Size: 51x7    9.6 pt off  Size: 48.5297x7.26094
9.7 pt on  Size: 51x7    9.7 pt off  Size: 49.0352x7.33657
9.8 pt on  Size: 51x7    9.8 pt off  Size: 49.5407x7.41221
9.9 pt on  Size: 51x7    9.9 pt off  Size: 50.0462x7.48784
10.0 pt on  Size: 51x7    10.0 pt off  Size: 50.5518x7.56348

[alois at as80 devlop]$ ctest2  PDF
9.0 pt on  Size: 45.4966x6.80713    9.0 pt off  Size: 45.4966x6.80713
9.1 pt on  Size: 46.0021x6.88276    9.1 pt off  Size: 46.0021x6.88276
9.2 pt on  Size: 46.5076x6.9584    9.2 pt off  Size: 46.5076x6.9584
9.3 pt on  Size: 47.0131x7.03403    9.3 pt off  Size: 47.0131x7.03403
9.4 pt on  Size: 47.5187x7.10967    9.4 pt off  Size: 47.5187x7.10967
9.5 pt on  Size: 48.0242x7.1853    9.5 pt off  Size: 48.0242x7.1853
9.6 pt on  Size: 48.5297x7.26094    9.6 pt off  Size: 48.5297x7.26094
9.7 pt on  Size: 49.0352x7.33657    9.7 pt off  Size: 49.0352x7.33657
9.8 pt on  Size: 49.5407x7.41221    9.8 pt off  Size: 49.5407x7.41221
9.9 pt on  Size: 50.0462x7.48784    9.9 pt off  Size: 50.0462x7.48784
10.0 pt on  Size: 50.5518x7.56348    10.0 pt off  Size: 50.5518x7.56348


On 29.09.18 11:25, Alois Treindl wrote:
>
> It is important to know which version of cairo I am using.
>
> The sample I posted earlier is run on cairo-1.14.8-2.el7.x86_64on RHEL7.5
>
> The problem appeared only with the update of Redhat Linux from RHEL6 
> to RHEL7.
>
> If I run the samples on the old machine, which has 
> cairo-1.10.2-1.el6.x86_64, the fonts scale properly:
>
>

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