diff options
Diffstat (limited to 'libX11/src/xcms/cmsLkCol.c')
| -rw-r--r-- | libX11/src/xcms/cmsLkCol.c | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/libX11/src/xcms/cmsLkCol.c b/libX11/src/xcms/cmsLkCol.c new file mode 100644 index 000000000..f19f21d03 --- /dev/null +++ b/libX11/src/xcms/cmsLkCol.c @@ -0,0 +1,196 @@ +/* $Xorg: cmsLkCol.c,v 1.3 2000/08/17 19:45:09 cpqbld Exp $ */ + +/* + * 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 + * XcmsLkCol.c + * + * DESCRIPTION + * Source for XcmsLookupColor + * + * + */ +/* $XFree86: xc/lib/X11/cmsLkCol.c,v 1.5 2003/04/13 19:22:20 dawes Exp $ */ + +#define NEED_REPLIES +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include <stdio.h> +#include "Xlibint.h" +#include "Xcmsint.h" +#include "Cv.h" + + +/* + * NAME + * XcmsLookupColor - + * + * SYNOPSIS + */ +Status +XcmsLookupColor ( + Display *dpy, + Colormap cmap, + _Xconst char *colorname, + XcmsColor *pColor_exact_return, + XcmsColor *pColor_scrn_return, + XcmsColorFormat result_format) +/* + * DESCRIPTION + * The XcmsLookupColor function finds the color specification + * associated with a color name in the Device-Independent Color + * Name Database. + * RETURNS + * This function returns both the color specification found in the + * database (db specification) and the color specification for the + * color displayable by the specified screen (screen + * specification). The calling routine sets the format for these + * returned specifications in the XcmsColor format component. + * If XcmsUndefinedFormat, the specification is returned in the + * format used to store the color in the database. + */ +{ + Status retval1 = XcmsSuccess; + Status retval2 = XcmsSuccess; + XcmsCCC ccc; + register int n; + xLookupColorReply reply; + register xLookupColorReq *req; + XColor def, scr; + +/* + * 0. Check for invalid arguments. + */ + if (dpy == NULL || colorname[0] == '\0' || pColor_scrn_return == 0 + || pColor_exact_return == NULL) { + return(XcmsFailure); + } + + if ((ccc = XcmsCCCOfColormap(dpy, cmap)) == (XcmsCCC)NULL) { + return(XcmsFailure); + } + +/* + * 1. Convert string to a XcmsColor + */ + if ((retval1 = _XcmsResolveColorString(ccc, &colorname, + pColor_exact_return, result_format)) == XcmsFailure) { + return(XcmsFailure); + } + if (retval1 == _XCMS_NEWNAME) { + goto PassToServer; + } + +/* + * 2. pColor_scrn_return + * Assume the pColor_exact_return has already been adjusted to + * the Client White Point. + * + */ + /* + * Convert to RGB, adjusting for white point differences if necessary. + */ + memcpy((char *)pColor_scrn_return, (char *)pColor_exact_return, + sizeof(XcmsColor)); + if (pColor_scrn_return->format == XcmsRGBFormat) { + retval2 = XcmsSuccess; + } else if ((retval2 = XcmsConvertColors(ccc, pColor_scrn_return, 1, + XcmsRGBFormat, (Bool *)NULL)) == XcmsFailure) { + return(XcmsFailure); + } + + /* + * Then, convert XcmsColor structure to the target specification + * format. Note that we must use NULL instead of passing + * pCompressed. + */ + + if (result_format == XcmsUndefinedFormat) { + result_format = pColor_exact_return->format; + } + if (result_format == XcmsRGBFormat) { + _XcmsUnresolveColor(ccc, pColor_scrn_return); + } else { + _XcmsResolveColor(ccc, pColor_scrn_return); + if (XcmsConvertColors(ccc, pColor_scrn_return, 1, result_format, + (Bool *) NULL) == XcmsFailure) { + return(XcmsFailure); + } + } + + return(retval1 > retval2 ? retval1 : retval2); + +PassToServer: + /* + * Xcms and i18n methods failed, so lets pass it to the server + * for parsing. + */ + + LockDisplay(dpy); + GetReq (LookupColor, req); + req->cmap = cmap; + req->nbytes = n = strlen(colorname); + req->length += (n + 3) >> 2; + Data (dpy, colorname, (long)n); + if (!_XReply (dpy, (xReply *) &reply, 0, xTrue)) { + UnlockDisplay(dpy); + SyncHandle(); + return (XcmsFailure); + } + def.red = reply.exactRed; + def.green = reply.exactGreen; + def.blue = reply.exactBlue; + + scr.red = reply.screenRed; + scr.green = reply.screenGreen; + scr.blue = reply.screenBlue; + + UnlockDisplay(dpy); + SyncHandle(); + + _XColor_to_XcmsRGB(ccc, &def, pColor_exact_return, 1); + _XColor_to_XcmsRGB(ccc, &scr, pColor_scrn_return, 1); + + /* + * Then, convert XcmsColor structure to the target specification + * format. Note that we must use NULL instead of passing + * pCompressed. + */ + + if (result_format != XcmsRGBFormat + && result_format != XcmsUndefinedFormat) { + if (XcmsConvertColors(ccc, pColor_exact_return, 1, result_format, + (Bool *) NULL) == XcmsFailure) { + return(XcmsFailure); + } + if (XcmsConvertColors(ccc, pColor_scrn_return, 1, result_format, + (Bool *) NULL) == XcmsFailure) { + return(XcmsFailure); + } + } + + return(XcmsSuccess); +} |