> (i remember having troubles with those functions on other
compilers...but it's been years :-))
Presently it fails to compile under OSX. It's a fairly recent mac air-- I
don't have the specs atm but I'll check and post later.
-Jonathan
On Saturday, February 20, 2016 2:36 PM, IOhannes m zmölnig
<zmoel...@iem.at> wrote:
On 02/19/2016 09:37 PM, Jonathan Wilkes via Pd-list wrote:
> Hi List,
> Line 593 of pdp_imageproc_portable.c: /* affine x, y mappings in screen
> coordinates */ double mapx(double _x, double _y){return cx + izx * ( c *
> (_x-cx) + s * (_y-cy));} double mapy(double _x, double _y){return cy + izy
> * (-s * (_x-cx) + c * (_y-cy));}
>
> These lines are found _inside_ a function called
> pdp_imageproc_resample_affinemap_process.
there's nothing (much) wrong with it: nested functions are a gcc extension.
(i remember having troubles with those functions on other
compilers...but it's been years :-))
> It's fun to focus on the substring "portable.c", and just read these lines a
> few times. :)
"portable" means different things to different people.
for you it seems to refer to usability on multiple operating-systems and
compilers.
it could also have referred to the file-size (pdp_imageproc_portable.c
easily fits on a floppy).
knowing tom a bit, it's most likely that this is about portability
between multiple architectures all running linux (and looking at the
other files nearby this is very much the case - as the "portable" code
is opposed to code explictely using i586 instructions)
gmasrd
IOhannes
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