87 lines
2.0 KiB
C
87 lines
2.0 KiB
C
/* @(#) Try to make an IMAGE writeable. im_mmapin files become im_mmapinrw
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* @(#) files, buffers are left alone and output files and partial images
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* @(#) generate an error.
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* @(#)
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* @(#) int im_makerw( im )
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* @(#) IMAGE *im;
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* @(#)
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* @(#) Returns non-zero on error.
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* @(#)
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* Copyright: John Cupitt
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* Written on: 17/6/92
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* Updated on:
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* 15/4/93
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* - checks for partial images added
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* - now uses type field
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* 31/8/93 JC
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* - returns ok for IM_MMAPINRW type files now too
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* - returns -1 rather than 1 on error
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* - ANSIfied
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif /*HAVE_CONFIG_H*/
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#include <vips/intl.h>
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#include <vips/vips.h>
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#ifdef WITH_DMALLOC
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#include <dmalloc.h>
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#endif /*WITH_DMALLOC*/
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int
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im_makerw( IMAGE *im )
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{
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/* This will rewind im_openout() files, and generate im_partial() files.
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*/
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if( im_incheck( im ) ) {
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im_errormsg( "im_makerw: unable to rewind file" );
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return( -1 );
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}
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switch( im->dtype ) {
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case IM_SETBUF:
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case IM_SETBUF_FOREIGN:
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case IM_MMAPINRW:
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break;
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case IM_MMAPIN:
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if( im_remapfilerw( im ) )
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return( -1 );
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break;
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default:
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im_errormsg( "im_makerw: bad file type" );
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return( -1 );
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}
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return( 0 );
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}
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