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/*
* 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
* XcmsSetGet.c
*
* DESCRIPTION
* Source for _XcmsSetGetColors()
*
*
*/
/*
* EXTERNAL INCLUDES
* Include files that must be exported to any package or
* program using this package.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "Xlibint.h"
#include "Xcmsint.h"
#include "Cv.h"
/************************************************************************
* *
* API PRIVATE ROUTINES *
* *
************************************************************************/
/*
* NAME
* XcmsSetColor -
*
* SYNOPSIS
*/
Status
_XcmsSetGetColor(
Status (*xColorProc)(
Display* /* display */,
Colormap /* colormap */,
XColor* /* screen_in_out */),
Display *dpy,
Colormap cmap,
XcmsColor *pColors_in_out,
XcmsColorFormat result_format,
Bool *pCompressed)
/*
* DESCRIPTION
* Routine containing code common to:
* XcmsAllocColor
* XcmsQueryColor
* XcmsStoreColor
*
* RETURNS
* XcmsFailure if failed;
* XcmsSuccess if it succeeded without gamut compression;
* XcmsSuccessWithCompression if it succeeded with gamut
* compression;
*/
{
XcmsCCC ccc;
XColor XColors_in_out;
Status retval = XcmsSuccess;
/*
* Argument Checking
* 1. Assume xColorProc is correct
* 2. Insure ccc not NULL
* 3. Assume cmap correct (should be checked by Server)
* 4. Insure pColors_in_out valid
* 5. Assume method_in is valid (should be checked by Server)
*/
if (dpy == NULL) {
return(XcmsFailure);
}
if (result_format == XcmsUndefinedFormat) {
return(XcmsFailure);
}
if ( !((*xColorProc == XAllocColor) || (*xColorProc == XStoreColor)
|| (*xColorProc == XQueryColor)) ) {
return(XcmsFailure);
}
if ((ccc = XcmsCCCOfColormap(dpy, cmap)) == (XcmsCCC)NULL) {
return(XcmsFailure);
}
if (*xColorProc == XQueryColor) {
goto Query;
}
/*
* Convert to RGB, adjusting for white point differences if necessary.
*/
if ((retval = XcmsConvertColors(ccc, pColors_in_out, 1, XcmsRGBFormat,
pCompressed)) == XcmsFailure) {
return(XcmsFailure);
}
Query:
/*
* Convert XcmsColor to XColor structures
*/
_XcmsRGB_to_XColor(pColors_in_out, &XColors_in_out, 1);
/*
* Now make appropriate X Call
*/
if (*xColorProc == XAllocColor) {
if ((*xColorProc)(ccc->dpy, cmap, &XColors_in_out) == 0) {
return(XcmsFailure);
}
} else if ((*xColorProc == XQueryColor) || (*xColorProc == XStoreColor)) {
/* Note: XQueryColor and XStoreColor do not return any Status */
(*xColorProc)(ccc->dpy, cmap, &XColors_in_out);
} else {
return(XcmsFailure);
}
if ((*xColorProc == XStoreColor)) {
return(retval);
}
/*
* Now, convert the returned XColor (i.e., rgb) to XcmsColor structures
*/
_XColor_to_XcmsRGB(ccc, &XColors_in_out, pColors_in_out, 1);
/*
* Then, convert XcmsColor structures to the original specification
* format. Note that we must use NULL instead of passing
* pCompressed.
*/
if (result_format != XcmsRGBFormat) {
if (XcmsConvertColors(ccc, pColors_in_out, 1, result_format,
(Bool *) NULL) == XcmsFailure) {
return(XcmsFailure);
}
}
return(retval);
}
/*
* NAME
* XcmsSetColors -
*
* SYNOPSIS
*/
Status
_XcmsSetGetColors(
Status (*xColorProc)(
Display* /* display */,
Colormap /* colormap */,
XColor* /* screen_in_out */,
int /* nColors */),
Display *dpy,
Colormap cmap,
XcmsColor *pColors_in_out,
int nColors,
XcmsColorFormat result_format,
Bool *pCompressed)
/*
* DESCRIPTION
* Routine containing code common to:
* XcmsQueryColors
* XcmsStoreColors
*
* RETURNS
* XcmsFailure if failed;
* XcmsSuccess if it succeeded without gamut compression;
* XcmsSuccessWithCompression if it succeeded with gamut
* compression;
*/
{
XcmsCCC ccc;
XColor *pXColors_in_out;
Status retval = XcmsSuccess;
/*
* Argument Checking
* 1. Assume xColorProc is correct
* 2. Insure ccc not NULL
* 3. Assume cmap correct (should be checked by Server)
* 4. Insure pColors_in_out valid
* 5. Assume method_in is valid (should be checked by Server)
* 6. Insure nColors > 0
*/
if (dpy == NULL) {
return(XcmsFailure);
}
if (nColors == 0) {
return(XcmsSuccess);
}
if (result_format == XcmsUndefinedFormat) {
return(XcmsFailure);
}
if ( !((*xColorProc == XStoreColors) || (*xColorProc == XQueryColors)) ) {
return(XcmsFailure);
}
if ((ccc = XcmsCCCOfColormap(dpy, cmap)) == (XcmsCCC)NULL) {
return(XcmsFailure);
}
/*
* Allocate space for XColors
*/
if ((pXColors_in_out = Xcalloc(nColors, sizeof(XColor))) ==
NULL) {
return(XcmsFailure);
}
if (*xColorProc == XQueryColors) {
goto Query;
}
/*
* Convert to RGB, adjusting for white point differences if necessary.
*/
if ((retval = XcmsConvertColors(ccc, pColors_in_out, nColors, XcmsRGBFormat,
pCompressed)) == XcmsFailure) {
Xfree(pXColors_in_out);
return(XcmsFailure);
}
Query:
/*
* Convert XcmsColor to XColor structures
*/
_XcmsRGB_to_XColor(pColors_in_out, pXColors_in_out, nColors);
/*
* Now make appropriate X Call
*/
if ((*xColorProc == XQueryColors) || (*xColorProc == XStoreColors)){
/* Note: XQueryColors and XStoreColors do not return any Status */
(*xColorProc)(ccc->dpy, cmap, pXColors_in_out, nColors);
} else {
Xfree(pXColors_in_out);
return(XcmsFailure);
}
if (*xColorProc == XStoreColors) {
Xfree(pXColors_in_out);
return(retval);
}
/*
* Now, convert the returned XColor (i.e., rgb) to XcmsColor structures
*/
_XColor_to_XcmsRGB(ccc, pXColors_in_out, pColors_in_out, nColors);
Xfree(pXColors_in_out);
/*
* Then, convert XcmsColor structures to the original specification
* format. Note that we must use NULL instead of passing
* pCompressed.
*/
if (result_format != XcmsRGBFormat) {
if (XcmsConvertColors(ccc, pColors_in_out, nColors, result_format,
(Bool *) NULL) == XcmsFailure) {
return(XcmsFailure);
}
}
return(retval);
}
/* ### EOF ### */
|
