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/* Copyright (C) 1994, 1995, 1996, 1997, 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: gxdither.h,v 1.7 2005/05/05 05:35:22 dan Exp $ */
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/* Interface to gxdither.c */
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#ifndef gxdither_INCLUDED
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# define gxdither_INCLUDED
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#include "gxfrac.h"
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#ifndef gx_device_halftone_DEFINED
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# define gx_device_halftone_DEFINED
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typedef struct gx_device_halftone_s gx_device_halftone;
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#endif
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/*
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* Render DeviceN possibly by halftoning.
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* pcolors = pointer to an array color values (as fracs)
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* pdevc - pointer to device color structure
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* dev = pointer to device data structure
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* pht = pointer to halftone data structure
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* ht_phase = halftone phase
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* This is part of a kludge to minimize differences in the
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* regression testing.
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*/
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int gx_render_device_DeviceN(frac * pcolor, gx_device_color * pdevc,
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gx_device * dev, gx_device_halftone * pdht, const gs_int_point * ht_phase);
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/*
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* Reduce a colored halftone with 0 or 1 varying plane(s) to a pure color
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* or a binary halftone.
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*/
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int gx_devn_reduce_colored_halftone(gx_device_color *pdevc, gx_device *dev);
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#endif /* gxdither_INCLUDED */
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