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Diffstat (limited to 'nx-X11/lib/X11/cmsProp.c')
| -rw-r--r-- | nx-X11/lib/X11/cmsProp.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/nx-X11/lib/X11/cmsProp.c b/nx-X11/lib/X11/cmsProp.c new file mode 100644 index 000000000..81ea58ce9 --- /dev/null +++ b/nx-X11/lib/X11/cmsProp.c @@ -0,0 +1,152 @@ +/* $Xorg: cmsProp.c,v 1.3 2000/08/17 19:45:10 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 + * XcmsProp.c + * + * DESCRIPTION + * This utility routines for manipulating properties. + * + */ +/* $XFree86$ */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include <X11/Xatom.h> +#include "Xlibint.h" +#include "Xcmsint.h" +#include "Cv.h" + + +/************************************************************************ + * * + * API PRIVATE ROUTINES * + * * + ************************************************************************/ + + +/* + * NAME + * _XcmsGetElement -- get an element value from the property passed + * + * SYNOPSIS + */ +unsigned long +_XcmsGetElement( + int format, + char **pValue, + unsigned long *pCount) +/* + * DESCRIPTION + * Get the next element from the property and return it. + * Also increment the pointer the amount needed. + * + * Returns + * unsigned long + */ +{ + unsigned long value; + + switch (format) { + case 32: + value = *((unsigned long *)(*pValue)) & 0xFFFFFFFF; + *pValue += sizeof(unsigned long); + *pCount -= 1; + break; + case 16: + value = *((unsigned short *)(*pValue)); + *pValue += sizeof(unsigned short); + *pCount -= 1; + break; + case 8: + value = *((unsigned char *) (*pValue)); + *pValue += 1; + *pCount -= 1; + break; + default: + value = 0; + break; + } + return(value); +} + + +/* + * NAME + * _XcmsGetProperty -- Determine the existance of a property + * + * SYNOPSIS + */ +int +_XcmsGetProperty( + Display *pDpy, + Window w, + Atom property, + int *pFormat, + unsigned long *pNItems, + unsigned long *pNBytes, + char **pValue) +/* + * DESCRIPTION + * + * Returns + * 0 if property does not exist. + * 1 if property exists. + */ +{ + char *prop_ret; + int format_ret; + long len = 6516; + #ifdef NXAGENT_SERVER + unsigned long nitems_ret, after_ret = 0; + #else + unsigned long nitems_ret, after_ret; + #endif + Atom atom_ret; + + while (XGetWindowProperty (pDpy, w, property, 0, len, False, + XA_INTEGER, &atom_ret, &format_ret, + &nitems_ret, &after_ret, + (unsigned char **)&prop_ret)) { + if (after_ret > 0) { + len += nitems_ret * (format_ret >> 3); + XFree (prop_ret); + } else { + break; + } + } + if (format_ret == 0 || nitems_ret == 0) { + /* the property does not exist or is of an unexpected type */ + return(XcmsFailure); + } + + *pFormat = format_ret; + *pNItems = nitems_ret; + *pNBytes = nitems_ret * (format_ret >> 3); + *pValue = prop_ret; + return(XcmsSuccess); +} |