[NTG-pdftex] writepng-copy in pdfxtex

[h h extern]

Hartmut Henkel wrote:

> just thought that we maybe could safely test the fast (copy) PNG
> inclusion by pdfxtex, e. g. making some global flag in texmfmp.c,
> 
> #if defined(pdfTeX) || defined(pdfeTeX) || defined(pdfxTeX)
> string ptexbanner = BANNER;
> enum ptexengine_ {PDFTEX, PDFETEX, PDFXTEX};
> #if defined(pdfTeX)
> int ptexengine = PDFTEX;
> #endif
> #if defined(pdfeTeX)
> int ptexengine = PDFETEX;
> #endif
> #if defined(pdfxTeX)
> int ptexengine = PDFXTEX;
> #endif
> #endif
> 
> so that ptexengine is available everywhere and then also add the
> xwrite_png() with the COPY feature in addition to the standard
> write_png() into writepng.c and have
> 
> if(ptexengine == PDFXTEX) xwrite_png(img); else write_png(img);
> 
> or so in writeimg.c. Is it still worthwile or is pdftex frozen by now
> for texlive?

next week things will become frozen; i think we can smuggle a newer 
pdfxtex in the lin/win parts ... the more this is tested the better

martin?

Hans

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