[cairo] Question regarding recording surfaces

[Zoltán Turányi]

Hi,

I plan to use recording surfaces to create a drawing and then replay it into
a window using different scaling factors (as the user zooms in). I read the
documentation and it seems to say that recording surfaces record the
high-level drawing commands - from which I would expect a high resolution
output if replayed on a high resolution target surface (appropriate scaling
applied to the context onto which it is being replayed).

I do not seem to be able to get this behaviour. In the below code I draw
some text and I replay it onto a PNG surface with 2x magnification. Yet the
text and line comes out as blurred - as if it were already rendered to some
bitmap on the recording surface (instead of just being recorded as a
show_text and a stroke). (See attachment.)

Is this something fundamental or am I doing something wrong?

As an additional comment: if I create the recording surface with no extents
given (NULL), the text and line does not replay onto the target surface at
all. Any hints on why?

Thanks in advance,
Zoltan
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