Subject:
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Re: [LDLite] Codes for new colors
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Newsgroups:
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lugnet.cad
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Date:
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Wed, 28 Oct 1998 12:49:03 GMT
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Viewed:
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2566 times
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Once upon a time, Paul Gyugyi <paul@gyugyi.com> wrote:
> Lets see, I'll dig out my source here.
> In file stub.c, in the routine translate_color(), the
> color numbers 0-15, 17-23 and 25 are hard-coded to non-dithered
> colors. Colors 16 and 24 are of course "special" colors.
> Colors 25-32 inclusive are as yet undefined. Colors 33 to
> 64 are intended to be transparent colors,
> although only 33,34,36,39,41,42,46,47,and 57 are defined.
What about colors 431, 495, and 382? They appear to be rendering as
solid colors.
(Note to self: colors 256, 273, 290, 307, 324, 341, 358, 375, 392,
409, 426, 443, 460, 477, 494, and 511 look solid because they are
dithering a solid color with itself.)
> Anything greater than 256 is dithered, with the
> highcolor = (c-256)/16 and the basecolor = c & 0xf.
> Upon looking at the code, if you specify a transparent
> color for the highcolor, you will get the highcolor mapped
> to "empty", in effect making a transparent version of the basecolor.
> In other words, color (33*16+256)+5 is a transparent version of
> color 5. Not that I recommend that you do this, but that's
> how it works.
Cool. So you can dither the new colors with any of the 16 standard
solids, you just have to use the new color as the high-color. So
orange-on-white is 671.
Steve
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Message has 1 Reply:
 | | Re: [LDLite] Codes for new colors
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| Yep, I can confirm they render as as solid. I have no idea why, but I'll try to look into it. Personally I'd like to switch over to a name-based color specification, since I'm still not sure what color I should use for trans-flourescent-green. Then (...) (26 years ago, 28-Oct-98, to lugnet.cad)
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Message is in Reply To:
| | Re: [LDLite] Codes for new colors
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| Lets see, I'll dig out my source here. In file stub.c, in the routine translate_color(), the color numbers 0-15, 17-23 and 25 are hard-coded to non-dithered colors. Colors 16 and 24 are of course "special" colors. Colors 25-32 inclusive are as yet (...) (26 years ago, 28-Oct-98, to lugnet.cad)
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