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/* $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 1.4 2001/07/25 15:04:44 dawes Exp $ */
#define NEED_REPLIES
#include <stdio.h>
#include "Xlibint.h"
#include "Xcmsint.h"
/*
* EXTERNS
*/
extern void _XColor_to_XcmsRGB();
extern void _XcmsRGB_to_XColor();
extern void _XcmsResolveColor();
extern void _XcmsUnresolveColor();
/* cmsColNm.c */
extern Status _XcmsResolveColorString();
/*
* NAME
* XcmsLookupColor -
*
* SYNOPSIS
*/
#if NeedFunctionPrototypes
Status
XcmsLookupColor (
Display *dpy,
Colormap cmap,
_Xconst char *colorname,
XcmsColor *pColor_exact_return,
XcmsColor *pColor_scrn_return,
XcmsColorFormat result_format)
#else
Status
XcmsLookupColor(dpy, cmap, colorname, pColor_exact_return, pColor_scrn_return,
result_format)
Display *dpy;
Colormap cmap;
char *colorname;
XcmsColor *pColor_exact_return;
XcmsColor *pColor_scrn_return;
XcmsColorFormat result_format;
#endif
/*
* 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);
}
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