Re: [Plplot-devel] gd driver and dlopen() flags

[Joao C. <jc...@fe...>]

On Monday 16 September 2002 21:20, Alan W. Irwin wrote:
> On Mon, 16 Sep 2002, [iso-8859-1] Jo=E3o Cardoso wrote:
> > I found that gdImagePalettePixel() is really a macro:
> >
> > #define gdImagePalettePixel(  im, x, y )   (im)->pixels[(y)][(x)]
> >
> > So, putting it above  gd.c:plD_gd_optimise(), makes the unknown symbo=
l
> > error to disappear, but the seg fault still happens:
> >
> > [jcard@feup] ./x01c -dev png -o po.png
> > Plplot library version: 5.1.0
> > Opened po.png
> > Segmentation fault
>
> I have now fixed this problem (but not the macro problem which I am lea=
ving
> to Andrew for final decision since I don't know whether or not that mac=
ro
> would actually work with libgd 1.8.4 with -drvopt optimise).

There is something strange with the last x08c.c that I have just cvs comm=
ited;=20
colors look strange under the png driver, either with -drvopt optimize or=
=20
not. But I thing that it has nothing to do with the macro definition.

>  But if you
> cvs update and work around the gdImagePalettePixel problem by adding th=
e
> macro, I think you will find the above problem will be gone.

Yes, its gone.
But I get warnings from freetype:

#:~/plplot/tmp> ./x01c -dev png -o po.png -drvopt text,smooth
Plplot library version: 5.1.0
Opened po.png

*** PLPLOT WARNING ***
Possible error defining one of the freetype compatible fonts.

*** PLPLOT WARNING ***
Possible error defining one of the freetype compatible fonts.

*** PLPLOT WARNING ***
Possible error defining one of the freetype compatible fonts.

*** PLPLOT WARNING ***
Possible error defining one of the freetype compatible fonts.

*** PLPLOT WARNING ***
Possible error defining one of the freetype compatible fonts.

*** PLPLOT ERROR ***
Loading a font in freetype
Program aborted

It looks like freetype does not find the specifyed fonts. Can anyone give=
 me a=20
hint? I have the standard X11 fonts, including type1 and trutype fonts:

#: xset q
=2E..
Font Path:=20
=2E..,/usr/X11R6/lib/X11/fonts/TTF,/usr/X11R6/lib/X11/fonts/truetype,/usr=
/X11R6/lib/X11/fonts/Type1,/usr/X11R6/lib/X11/fonts/URW,...

By the way, does anybody knows the (linux/X11) name of the standard 35=20
postcript fonts, the ones that *postscript* printers have by default?

Joao

>
> BTW, Andrew, I have just checked your recent changes, and eveything see=
ms
> to be fine; x08c gives good results with
> no drvopt and with
> -drvopt text,smooth,24bit and
> -drvopt text,smooth.
>
> Alan
>
>
>
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