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/**************************************************************************/
/* */
/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */
/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */
/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/
/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de> */
/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de> */
/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */
/* */
/* NXAGENT, NX protocol compression and NX extensions to this software */
/* are copyright of the aforementioned persons and companies. */
/* */
/* Redistribution and use of the present software is allowed according */
/* to terms specified in the file LICENSE which comes in the source */
/* distribution. */
/* */
/* All rights reserved. */
/* */
/* NOTE: This software has received contributions from various other */
/* contributors, only the core maintainers and supporters are listed as */
/* copyright holders. Please contact us, if you feel you should be listed */
/* as copyright holder, as well. */
/* */
/**************************************************************************/
#ifndef __Utils_H__
#define __Utils_H__
/*
* Number of bits in fixed point operations.
*/
#define PRECISION 16
/*
* "1" ratio means "don't scale".
*/
#define DONT_SCALE (1 << PRECISION)
#define nxagentScale(i, ratio) (((i) * (ratio)) >> (PRECISION))
static inline const char * validateString(const char *str) {
return str ? str : "(null)";
}
#define SAFE_XFree(what) do {if (what) {XFree(what); what = NULL;}} while (0)
#define SAFE_free(what) do {free(what); what = NULL;} while (0)
/* some helper macros to produce a quoted string from other macros */
#define QUOTEEXP(str) #str
#define QUOTE(str) QUOTEEXP(str)
#endif /* __Utils_H__ */
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