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/* Copyright (C) 1994, 1998 Aladdin Enterprises. All rights reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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For more information about licensing, please refer to
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http://www.ghostscript.com/licensing/. For information on
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commercial licensing, go to http://www.artifex.com/licensing/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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*/
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/* $Id: gxtmap.h,v 1.5 2002/06/16 08:45:43 lpd Exp $ */
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/* Definition of transfer mapping function */
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/* (also used for black generation and undercolor removal) */
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#ifndef gxtmap_INCLUDED
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# define gxtmap_INCLUDED
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/* Common definition for mapping procedures. */
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/* These are used for transfer functions, black generation, */
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/* and undercolor removal. */
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/* gx_transfer_map should probably be renamed gx_mapping_cache.... */
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/* Define an abstract type for a transfer map. */
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typedef struct gx_transfer_map_s gx_transfer_map;
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/*
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* Define the type of a mapping procedure. There are two forms of this.
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* The original form passed only the transfer map itself as an argument:
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*/
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typedef float (*gs_mapping_proc) (floatp, const gx_transfer_map *);
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/*
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* Later, we recognized that this procedure should really be a general
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* closure:
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*/
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typedef float (*gs_mapping_closure_proc_t) (floatp value,
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const gx_transfer_map * pmap,
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const void *proc_data);
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typedef struct gs_mapping_closure_s {
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gs_mapping_closure_proc_t proc;
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const void *data;
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} gs_mapping_closure_t;
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#endif /* gxtmap_INCLUDED */
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