182 lines
4.0 KiB
C
182 lines
4.0 KiB
C
/* @(#) Initialise the IMAGE to impossible startup values. Install the
|
|
* @(#) filename.
|
|
* @(#)
|
|
* @(#) IMAGE *im_init( char *filename )
|
|
*
|
|
* Copyright: Nicos Dessipris & Kirk Martinez, 1990
|
|
* Written on: 13/02/1990
|
|
* Modified on : 3/6/92 22/2/93
|
|
* 15/4/93 J.Cupitt
|
|
* - init for partial image buffers added
|
|
* - init for type field
|
|
* - filename added
|
|
* 10/5/93 J.Cupitt
|
|
* - allocates space for IMAGE too, and returns new data
|
|
* 23/2/94 JC
|
|
* - ANSIfied, man page revised
|
|
* 16/8/94 JC
|
|
* - evalend callbacks added
|
|
* 28/11/94 JC
|
|
* - new compression fields added, thr added
|
|
* 24/10/95 JC
|
|
* - now tracks open images ... see also im_close() and debug.c
|
|
* 1/12/04 JC
|
|
* - added an im_init_world() to help old progs
|
|
* 30/9/05
|
|
* - added sizeof_header
|
|
* 2/1/07
|
|
* - init magic
|
|
* - init history_list
|
|
* 7/11/07
|
|
* - added preclose and evalstart
|
|
* 9/8/08
|
|
* - lock global image list (thanks lee)
|
|
*/
|
|
|
|
/*
|
|
|
|
This file is part of VIPS.
|
|
|
|
VIPS is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
*/
|
|
|
|
/*
|
|
|
|
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
|
|
|
|
*/
|
|
|
|
/*
|
|
#define DEBUG_NEW
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif /*HAVE_CONFIG_H*/
|
|
#include <vips/intl.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <vips/vips.h>
|
|
#include <vips/debug.h>
|
|
#include <vips/thread.h>
|
|
#include <vips/internal.h>
|
|
|
|
#ifdef WITH_DMALLOC
|
|
#include <dmalloc.h>
|
|
#endif /*WITH_DMALLOC*/
|
|
|
|
/* Make a new IMAGE structure, set fields to an initial state. We set the
|
|
* filename field only.
|
|
*/
|
|
IMAGE *
|
|
im_init( const char *filename )
|
|
{
|
|
IMAGE *im;
|
|
|
|
/* Pass in a nonsense name for argv0 ... this init world is only here
|
|
* for old programs which are missing an im_init_world() call. We must
|
|
* have threads set up before we can process.
|
|
*/
|
|
if( im_init_world( "vips" ) )
|
|
im_error_clear();
|
|
|
|
if( !(im = IM_NEW( NULL, IMAGE )) )
|
|
return( NULL );
|
|
|
|
#ifdef DEBUG_NEW
|
|
printf( "im_init: new IMAGE 0x%p, \"%s\"\n", im, filename );
|
|
#endif /*DEBUG_NEW*/
|
|
|
|
im->Xsize = -1;
|
|
im->Ysize = -1;
|
|
im->Bands = -1;
|
|
im->Bbits = -1;
|
|
im->BandFmt = -1;
|
|
im->Coding = -1;
|
|
im->Type = -1;
|
|
im->Xres = 1.0;
|
|
im->Yres = 1.0;
|
|
im->Length = 0;
|
|
im->Compression = 0;
|
|
im->Level = 0;
|
|
im->Xoffset = 0;
|
|
im->Yoffset = 0;
|
|
|
|
im->Hist = NULL;
|
|
|
|
im->data = NULL;
|
|
im->time = NULL;
|
|
im->kill = 0;
|
|
|
|
im->dtype = IM_NONE;
|
|
im->fd = -1;
|
|
im->baseaddr = NULL;
|
|
im->length = 0;
|
|
im->closefns = NULL;
|
|
im->evalfns = NULL;
|
|
im->evalendfns = NULL;
|
|
im->closing = 0;
|
|
im->close_pending = 0;
|
|
|
|
/* Default to native order.
|
|
*/
|
|
im->magic = im_amiMSBfirst() ? IM_MAGIC_SPARC : IM_MAGIC_INTEL;
|
|
|
|
im->start = NULL;
|
|
im->generate = NULL;
|
|
im->stop = NULL;
|
|
im->client1 = NULL;
|
|
im->client2 = NULL;
|
|
im->sslock = g_mutex_new();
|
|
im->regions = NULL;
|
|
im->dhint = IM_SMALLTILE;
|
|
|
|
im->Meta = NULL;
|
|
im->Meta_traverse = NULL;
|
|
|
|
/* Default to the VIPS header size. Can be changed later.
|
|
*/
|
|
im->sizeof_header = IM_SIZEOF_HEADER;
|
|
|
|
im->windows = NULL;
|
|
|
|
im->parents = NULL;
|
|
im->children = NULL;
|
|
im->serial = 0;
|
|
|
|
im->history_list = NULL;
|
|
|
|
im->progress = NULL;
|
|
|
|
im->evalstartfns = NULL;
|
|
im->preclosefns = NULL;
|
|
im->invalidatefns = NULL;
|
|
|
|
if( !(im->filename = im_strdup( NULL, filename )) ) {
|
|
im_close( im );
|
|
return( NULL );
|
|
}
|
|
|
|
g_mutex_lock( im__global_lock );
|
|
im__open_images = g_slist_prepend( im__open_images, im );
|
|
g_mutex_unlock( im__global_lock );
|
|
|
|
return( im );
|
|
}
|