169 lines
3.7 KiB
C
169 lines
3.7 KiB
C
/* @(#) Initialise the IMAGE to impossible startup values. Install the
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* @(#) filename.
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* @(#)
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* @(#) IMAGE *im_init( char *filename )
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*
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* Copyright: Nicos Dessipris & Kirk Martinez, 1990
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* Written on: 13/02/1990
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* Modified on : 3/6/92 22/2/93
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* 15/4/93 J.Cupitt
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* - init for partial image buffers added
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* - init for type field
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* - filename added
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* 10/5/93 J.Cupitt
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* - allocates space for IMAGE too, and returns new data
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* 23/2/94 JC
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* - ANSIfied, man page revised
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* 16/8/94 JC
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* - evalend callbacks added
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* 28/11/94 JC
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* - new compression fields added, thr added
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* 24/10/95 JC
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* - now tracks open images ... see also im_close() and debug.c
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* 1/12/04 JC
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* - added an im_init_world() to help old progs
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* 30/9/05
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* - added sizeof_header
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* 2/1/07
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* - init magic
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* - init history_list
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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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/*
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#define DEBUG_NEW
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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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <vips/vips.h>
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#include <vips/debug.h>
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#include <vips/thread.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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/* Make a new IMAGE structure, set fields to an initial state. We set the
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* filename field only.
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*/
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IMAGE *
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im_init( const char *filename )
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{
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IMAGE *im;
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/* Pass in a nonsense name for argv0 ... this init world is only here
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* for old programs which are missing an im_init_world() call. We must
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* have threads set up before we can process.
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*/
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if( im_init_world( "vips" ) )
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im_error_clear();
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if( !(im = IM_NEW( NULL, IMAGE )) )
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return( NULL );
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#ifdef DEBUG_NEW
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printf( "im_init: new IMAGE 0x%p, \"%s\"\n", im, filename );
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#endif /*DEBUG_NEW*/
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im->Xsize = -1;
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im->Ysize = -1;
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im->Bands = -1;
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im->Bbits = -1;
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im->BandFmt = -1;
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im->Coding = -1;
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im->Type = -1;
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im->Xres = 1.0;
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im->Yres = 1.0;
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im->Length = 0;
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im->Compression = 0;
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im->Level = 0;
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im->Xoffset = 0;
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im->Yoffset = 0;
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im->Hist = NULL;
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im->data = NULL;
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im->time = NULL;
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im->kill = 0;
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im->dtype = IM_NONE;
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im->fd = -1;
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im->baseaddr = NULL;
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im->length = 0;
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im->closefns = NULL;
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im->evalfns = NULL;
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im->evalendfns = NULL;
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im->closing = 0;
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im->close_pending = 0;
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/* Default to native order.
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*/
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im->magic = im_amiMSBfirst() ? IM_MAGIC_SPARC : IM_MAGIC_INTEL;
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im->start = NULL;
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im->generate = NULL;
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im->stop = NULL;
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im->client1 = NULL;
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im->client2 = NULL;
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im->sslock = g_mutex_new();
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im->regions = NULL;
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im->dhint = IM_SMALLTILE;
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im->Meta = NULL;
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im->Meta_traverse = NULL;
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/* Default to the VIPS header size. Can be changed later.
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*/
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im->sizeof_header = IM_SIZEOF_HEADER;
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im->windows = NULL;
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im->parents = NULL;
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im->children = NULL;
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im->serial = 0;
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im->history_list = NULL;
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if( !(im->filename = im_strdup( NULL, filename )) ) {
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im_close( im );
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return( NULL );
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}
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im__open_images = g_slist_prepend( im__open_images, im );
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return( im );
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}
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