74 lines
2.8 KiB
C
74 lines
2.8 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/* $XConsortium: iljpgdecodedefs.h /main/3 1995/10/23 15:54:41 rswiston $ */
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/**---------------------------------------------------------------------
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***
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*** (c)Copyright 1992 Hewlett-Packard Co.
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***
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*** RESTRICTED RIGHTS LEGEND
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*** Use, duplication, or disclosure by the U.S. Government is subject to
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*** restrictions as set forth in sub-paragraph (c)(1)(ii) of the Rights in
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*** Technical Data and Computer Software clause in DFARS 252.227-7013.
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*** Hewlett-Packard Company
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*** 3000 Hanover Street
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*** Palo Alto, CA 94304 U.S.A.
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*** Rights for non-DOD U.S. Government Departments and Agencies are as set
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*** forth in FAR 52.227-19(c)(1,2).
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***
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***-------------------------------------------------------------------*/
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#ifndef ILJPGDECODEDEFS_H
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#define ILJPGDECODEDEFS_H
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#include "ilint.h"
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#include "ilerrors.h"
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/* Equate ILJPG errors to IL errors */
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#define ILJPG_ERROR_DECODE_MALLOC IL_ERROR_MALLOC
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#define ILJPG_ERROR_DECODE_JIF IL_ERROR_COMPRESSED_DATA
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#define ILJPG_ERROR_DECODE_DATA IL_ERROR_COMPRESSED_DATA
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#define ILJPG_ERROR_DECODE_INTERNAL IL_ERROR_COMPRESSED_DATA
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#define ILJPG_ERROR_DECODE_EOD IL_ERROR_COMPRESSED_DATA
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#define ILJPG_ERROR_DECODE_DCAC_TABLE IL_ERROR_COMPRESSED_DATA
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#define ILJPG_ERROR_DECODE_PARS IL_ERROR_COMPRESSED_DATA
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/* Define a JPEG stream: ptr to data in memory and # bytes left */
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typedef struct {
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ilPtr pData;
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long nBytesLeft;
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} ilJPEGDecodeStream, *ilJPEGDecodeStreamPtr;
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#define ILJPG_DECODE_STREAM ilJPEGDecodeStreamPtr
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/* Macro to get next byte from a stream. Return ILJPG_ERROR_DECODE_EOD
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error if no more data.
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*/
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#define ILJPG_DECODE_GET_BYTE(_stream, _byte, _error) ( \
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(--_stream->nBytesLeft < 0) ? \
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(_error = ILJPG_ERROR_DECODE_EOD, 0) : \
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(_byte = *_stream->pData++, 1) )
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#endif
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