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/* Copyright (C) 1997 Aladdin Enterprises. All rights reserved.
This file is part of GNU Ghostscript.
GNU Ghostscript is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY. No author or distributor accepts responsibility to
anyone for the consequences of using it or for whether it serves any
particular purpose or works at all, unless he says so in writing. Refer to
the GNU General Public License for full details.
Everyone is granted permission to copy, modify and redistribute GNU
Ghostscript, but only under the conditions described in the GNU General
Public License. A copy of this license is supposed to have been given to
you along with GNU Ghostscript so you can know your rights and
responsibilities. It should be in a file named COPYING. Among other
things, the copyright notice and this notice must be preserved on all
copies.
Aladdin Enterprises is not affiliated with the Free Software Foundation or
the GNU Project. GNU Ghostscript, as distributed by Aladdin Enterprises,
does not depend on any other GNU software.
*/
/* gsfunc.c */
/* Generic Function support */
#include "gx.h"
#include "gserrors.h"
#include "gxfunc.h"
/* GC descriptor */
public_st_function();
/* Generic free_params implementation. */
void
fn_common_free_params(gs_function_params_t *params, gs_memory_t *mem)
{ gs_free_object(mem, (void *)params->Range, "Range"); /* break const */
gs_free_object(mem, (void *)params->Domain, "Domain"); /* break const */
}
/* Generic free implementation. */
void
fn_common_free(gs_function_t *pfn, bool free_params, gs_memory_t *mem)
{ if ( free_params )
gs_function_free_params(pfn, mem);
gs_free_object(mem, pfn, "fn_xxx_free");
}
/* Free an array of subsidiary Functions. */
void
fn_free_functions(gs_function_t **Functions, int count, gs_memory_t *mem)
{ int i;
for ( i = count; --i >= 0; )
gs_function_free(Functions[i], true, mem);
gs_free_object(mem, Functions, "Functions");
}
/* Check the values of m, n, Domain, and (if supplied) Range. */
int
fn_check_mnDR_proc(const gs_function_params_t *params, int m, int n)
{ int i;
if ( m <= 0 || n <= 0 )
return_error(gs_error_rangecheck);
for ( i = 0; i < m; ++i )
if ( params->Domain[2 * i] > params->Domain[2 * i + 1] )
return_error(gs_error_rangecheck);
if ( params->Range != 0 )
for ( i = 0; i < n; ++i )
if ( params->Range[2 * i] > params->Range[2 * i + 1] )
return_error(gs_error_rangecheck);
return 0;
}
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