100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
// Copyright (c) 2005-2008 ASCLEPIOS Project, INRIA Sophia-Antipolis (France)
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// All rights reserved.
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//
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// This file is part of the ImageIO Library, and as been adapted for CGAL (www.cgal.org).
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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/CGAL_ImageIO/include/CGAL/ImageIO/convert.h $
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// $Id: convert.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
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// SPDX-License-Identifier: LGPL-3.0-or-later
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//
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//
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// Author(s) : ASCLEPIOS Project (INRIA Sophia-Antipolis), Laurent Rineau
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/*************************************************************************
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* convert.h - conversion between types
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*
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* $Id: convert.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
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*
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* Copyright©INRIA 1998
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*
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* AUTHOR:
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* Gregoire Malandain (greg@sophia.inria.fr)
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* http://www.inria.fr/epidaure/personnel/malandain/
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*
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* CREATION DATE:
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* June, 9 1998
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*
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* ADDITIONS, CHANGES
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*
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*/
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#ifndef _convert_h_
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#define _convert_h_
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#include <stdio.h> /* memcpy */
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#include <string.h> /* memcpy */
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#include <CGAL/ImageIO/typedefs.h>
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/* Converts buffers from one type into another.
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*
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* DESCRIPTION:
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*
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* Conversions from types DOUBLE or FLOAT to
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* others types are all implemented. I hope
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* I do not make mistakes.
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*
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* - When a real value is converted into an integer
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* one, we take the nearest integer, i.e.
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* (int)(real value - 0.5) for negative
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* numbers, and (int)(real value + 0.5) for
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* positive ones.
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*
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* - Some conversions are not yet implemented.
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*
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* - When types and pointers are equal, nothing is
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* done.
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*/
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extern void ConvertBuffer( void *bufferIn, /* buffer to be converted */
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bufferType typeIn, /* type of this buffer */
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void *bufferOut, /* result buffer */
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bufferType typeOut, /* type of this buffer */
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int bufferLength /* buffers' length */
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);
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extern void Convert_r32_to_s8( r32 *theBuf,
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s8 *resBuf,
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int size );
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extern void Convert_r32_to_u8( r32 *theBuf,
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u8 *resBuf,
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int size );
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extern void Convert_r32_to_s16( r32 *theBuf,
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s16 *resBuf,
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int size );
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extern void Convert_r32_to_u16( r32 *theBuf,
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u16 *resBuf,
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int size );
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#ifdef CGAL_HEADER_ONLY
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#include <CGAL/ImageIO/convert_impl.h>
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#endif // CGAL_HEADER_ONLY
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#endif
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