color(3) - Plan 9 from User Space

From adc93f6097615f16d57e8a24a256302f2144ec4e Mon Sep 17 00:00:00 2001 From: rsc Date: Fri, 14 Jan 2005 17:37:50 +0000 Subject: cut out the html - they're going to cause diffing problems. --- man/man3/color.html | 89 ----------------------------------------------------- 1 file changed, 89 deletions(-) delete mode 100644 man/man3/color.html (limited to 'man/man3/color.html') diff --git a/man/man3/color.html b/man/man3/color.html deleted file mode 100644 index a8274707..00000000 --- a/man/man3/color.html +++ /dev/null @@ -1,89 +0,0 @@ - -color(3) - Plan 9 from User Space - - - - -

COLOR(3) COLOR(3) -

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NAME
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- - cmap2rgb, cmap2rgba, rgb2cmap – colors and color maps
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SYNOPSIS
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- - #include <u.h> - #include <libc.h> - #include <draw.h> - - - int rgb2cmap(int red, int green, int blue) - - - int cmap2rgb(int col) - - - int cmap2rgba(int col) - -
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DESCRIPTION
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- - These routines convert between ‘true color’ red/green/blue triples - and the Plan 9 color map. See color(7) for a description of RGBV, - the standard color map. -
- - Rgb2cmap takes a trio of color values, scaled from 0 (no intensity) - to 255 (full intensity), and returns the index of the color in - RGBV closest to that represented by those values. -
- - Cmap2rgb decomposes the color of RGBV index col and returns a - 24-bit integer with the low 8 bits representing the blue value, - the next 8 representing green, and the next 8 representing red. - Cmap2rgba decomposes the color of RGBV index col and returns a - 32-bit integer with the low 8 bits representing an alpha - value, defined to be 255, and the next 8 representing blue, then - green, then red, as for cmap2rgba shifted up 8 bits. This 32-bit - representation is the format used by draw(3) and memdraw(3) library - routines that take colors as arguments.
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SOURCE
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- - /usr/local/plan9/src/libdraw - -
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SEE ALSO
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- - graphics(3), allocimage(3), draw(3), image(7), color(7)
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