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devdraw, libdraw: add display->dpi

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Fixed at 100 right now, but the plan is to make it accurate
and then use it.

R=rsc
http://codereview.appspot.com/6856091
This commit is contained in:
Russ Cox 2012-11-25 21:41:52 -05:00
parent 7b9ef735a8
commit d0e0701913
4 changed files with 38 additions and 2 deletions
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9
src/libdraw/init.c
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@ -179,6 +179,15 @@ getimage0(Display *d, Image *image)
image->clipr.min.y = atoi(info+9*12);
image->clipr.max.x = atoi(info+10*12);
image->clipr.max.y = atoi(info+11*12);
a = bufimage(d, 3);
a[0] = 'q';
a[1] = 1;
a[2] = 'd';
d->dpi = 100;
if(flushimage(d, 0) >= 0 && _displayrddraw(d, info, 12) == 12)
d->dpi = atoi(info);
return image;
}