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/* Copyright (C) 1996, 1999 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: gsflip.h,v 1.5 2002/06/16 08:45:42 lpd Exp $ */
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/* Interface to routines for "flipping" image data */
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#ifndef gsflip_INCLUDED
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# define gsflip_INCLUDED
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/*
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* Convert planar (MultipleDataSource) input to chunky format. The input
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* data starts at planes[0] + offset ... planes[num_planes-1] + offset; the
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* output is stored at buffer. This procedure assumes that the input
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* consists of an integral number of pixels; in particular, for 12-bit
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* input, nbytes is rounded up to a multiple of 3. num_planes must be >=0;
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* bits_per_sample must be 1, 2, 4, 8, or 12. Returns -1 if num_planes or
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* bits_per_sample is invalid, otherwise 0.
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*/
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extern int image_flip_planes(byte * buffer, const byte ** planes,
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int offset, int nbytes,
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int num_planes, int bits_per_sample);
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#endif /* gsflip_INCLUDED */
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