diff options
Diffstat (limited to 'nx-X11/lib/X11/XRGB.c')
| -rw-r--r-- | nx-X11/lib/X11/XRGB.c | 242 |
1 files changed, 0 insertions, 242 deletions
diff --git a/nx-X11/lib/X11/XRGB.c b/nx-X11/lib/X11/XRGB.c deleted file mode 100644 index 03f980e99..000000000 --- a/nx-X11/lib/X11/XRGB.c +++ /dev/null @@ -1,242 +0,0 @@ - -/* - * Code and supporting documentation (c) Copyright 1990 1991 Tektronix, Inc. - * All Rights Reserved - * - * This file is a component of an X Window System-specific implementation - * of Xcms based on the TekColor Color Management System. Permission is - * hereby granted to use, copy, modify, sell, and otherwise distribute this - * software and its documentation for any purpose and without fee, provided - * that this copyright, permission, and disclaimer notice is reproduced in - * all copies of this software and in supporting documentation. TekColor - * is a trademark of Tektronix, Inc. - * - * Tektronix makes no representation about the suitability of this software - * for any purpose. It is provided "as is" and with all faults. - * - * TEKTRONIX DISCLAIMS ALL WARRANTIES APPLICABLE TO THIS SOFTWARE, - * INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A - * PARTICULAR PURPOSE. IN NO EVENT SHALL TEKTRONIX BE LIABLE FOR ANY - * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER - * RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER IN AN ACTION OF - * CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN - * CONNECTION WITH THE USE OR THE PERFORMANCE OF THIS SOFTWARE. - * - * - * NAME - * XcmsRtoX.c - * - * DESCRIPTION - * Convert color specifications in XcmsRGB format in one array of - * XcmsColor structures to RGB in an array of XColor structures. - * - * - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include "Xlibint.h" -#include "Xcmsint.h" -#include "Cv.h" - -/* - * LOCAL VARIABLES - */ - -static unsigned short const MASK[17] = { - 0x0000, /* 0 bitsPerRGB */ - 0x8000, /* 1 bitsPerRGB */ - 0xc000, /* 2 bitsPerRGB */ - 0xe000, /* 3 bitsPerRGB */ - 0xf000, /* 4 bitsPerRGB */ - 0xf800, /* 5 bitsPerRGB */ - 0xfc00, /* 6 bitsPerRGB */ - 0xfe00, /* 7 bitsPerRGB */ - 0xff00, /* 8 bitsPerRGB */ - 0xff80, /* 9 bitsPerRGB */ - 0xffc0, /* 10 bitsPerRGB */ - 0xffe0, /* 11 bitsPerRGB */ - 0xfff0, /* 12 bitsPerRGB */ - 0xfff8, /* 13 bitsPerRGB */ - 0xfffc, /* 14 bitsPerRGB */ - 0xfffe, /* 15 bitsPerRGB */ - 0xffff /* 16 bitsPerRGB */ -}; - - - -/************************************************************************ - * * - * API PRIVATE ROUTINES * - * * - ************************************************************************/ - -/* - * NAME - * _XcmsRGB_to_XColor - - * - * SYNOPSIS - */ -void -_XcmsRGB_to_XColor( - XcmsColor *pColors, - XColor *pXColors, - unsigned int nColors) -/* - * DESCRIPTION - * Translates a color specification in XcmsRGBFormat in a XcmsColor - * structure to an XColor structure. - * - * RETURNS - * void. - */ -{ - for (; nColors--; pXColors++, pColors++) { - pXColors->pixel = pColors->pixel; - pXColors->red = pColors->spec.RGB.red; - pXColors->green = pColors->spec.RGB.green; - pXColors->blue = pColors->spec.RGB.blue; - pXColors->flags = (DoRed | DoGreen | DoBlue); - } -} - - -/* - * NAME - * _XColor_to_XcmsRGB - * - * SYNOPSIS - */ -void -_XColor_to_XcmsRGB( - XcmsCCC ccc, - XColor *pXColors, - XcmsColor *pColors, - unsigned int nColors) -/* - * DESCRIPTION - * Translates an RGB color specification in an XColor - * structure to an XcmsRGB structure. - * - * IMPORTANT NOTE: Bit replication that may have been caused - * with ResolveColor() routine in the X Server is undone - * here if requested! For example, if red = 0xcaca and the - * bits_per_rgb is 8, then spec.RGB.red will be 0xca00. - * - * RETURNS - * void - */ -{ - int bits_per_rgb = ccc->visual->bits_per_rgb; - - for (; nColors--; pXColors++, pColors++) { - pColors->spec.RGB.red = (pXColors->red & MASK[bits_per_rgb]); - pColors->spec.RGB.green = (pXColors->green & MASK[bits_per_rgb]); - pColors->spec.RGB.blue = (pXColors->blue & MASK[bits_per_rgb]); - pColors->format = XcmsRGBFormat; - pColors->pixel = pXColors->pixel; - } -} - - -/* - * NAME - * _XcmsResolveColor - * - * SYNOPSIS - */ -void -_XcmsResolveColor( - XcmsCCC ccc, - XcmsColor *pXcmsColor) -/* - * DESCRIPTION - * Uses the X Server ResolveColor() algorithm to - * modify values to closest values supported by hardware. - * Old algorithm simply masked low-order bits. The new algorithm - * has the effect of replicating significant bits into lower order - * bits in order to stretch the hardware value into all 16 bits. - * - * On a display with N-bit DACs, the "hardware" color is computed as: - * - * ((unsignedlong)(ClientValue >> (16-N)) * 0xFFFF) / ((1 << N) - 1) - * - * - * RETURNS - * void. - */ -{ - int shift; - int max_color; - - shift = 16 - ccc->visual->bits_per_rgb; - max_color = (1 << ccc->visual->bits_per_rgb) - 1; - - - pXcmsColor->spec.RGB.red = - ((unsigned long)(pXcmsColor->spec.RGB.red >> shift) * 0xFFFF) - / max_color; - pXcmsColor->spec.RGB.green = - ((unsigned long)(pXcmsColor->spec.RGB.green >> shift) * 0xFFFF) - / max_color; - pXcmsColor->spec.RGB.blue = - ((unsigned long)(pXcmsColor->spec.RGB.blue >> shift) * 0xFFFF) - / max_color; -} - - -/* - * NAME - * _XcmsUnresolveColor - * - * SYNOPSIS - */ -void -_XcmsUnresolveColor( - XcmsCCC ccc, - XcmsColor *pColor) -/* - * DESCRIPTION - * Masks out insignificant bits. - * - * RETURNS - * void. - * - * ASSUMPTIONS - * format == XcmsRGBFormat - */ -{ - int bits_per_rgb = ccc->visual->bits_per_rgb; - - pColor->spec.RGB.red &= MASK[bits_per_rgb]; - pColor->spec.RGB.green &= MASK[bits_per_rgb]; - pColor->spec.RGB.blue &= MASK[bits_per_rgb]; -} - - -/* - * NAME - * _XUnresolveColor - * - * SYNOPSIS - */ -void -_XUnresolveColor( - XcmsCCC ccc, - XColor *pXColor) -/* - * DESCRIPTION - * Masks out insignificant bits. - * - * RETURNS - * void. - */ -{ - int bits_per_rgb = ccc->visual->bits_per_rgb; - - pXColor->red &= MASK[bits_per_rgb]; - pXColor->green &= MASK[bits_per_rgb]; - pXColor->blue &= MASK[bits_per_rgb]; -} - |